Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* perl.c |
2 | * | |
737f4459 NC |
3 | * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 |
4 | * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others | |
a687059c | 5 | * |
352d5a3a LW |
6 | * You may distribute under the terms of either the GNU General Public |
7 | * License or the Artistic License, as specified in the README file. | |
a687059c | 8 | * |
8d063cd8 LW |
9 | */ |
10 | ||
a0d0e21e | 11 | /* |
4ac71550 TC |
12 | * A ship then new they built for him |
13 | * of mithril and of elven-glass | |
14 | * --from Bilbo's song of EƤrendil | |
15 | * | |
16 | * [p.236 of _The Lord of the Rings_, II/i: "Many Meetings"] | |
a0d0e21e | 17 | */ |
45d8adaa | 18 | |
166f8a29 DM |
19 | /* This file contains the top-level functions that are used to create, use |
20 | * and destroy a perl interpreter, plus the functions used by XS code to | |
21 | * call back into perl. Note that it does not contain the actual main() | |
ddfa107c | 22 | * function of the interpreter; that can be found in perlmain.c |
166f8a29 DM |
23 | */ |
24 | ||
ae3f3efd PS |
25 | /* PSz 12 Nov 03 |
26 | * | |
27 | * Be proud that perl(1) may proclaim: | |
28 | * Setuid Perl scripts are safer than C programs ... | |
29 | * Do not abandon (deprecate) suidperl. Do not advocate C wrappers. | |
30 | * | |
31 | * The flow was: perl starts, notices script is suid, execs suidperl with same | |
32 | * arguments; suidperl opens script, checks many things, sets itself with | |
33 | * right UID, execs perl with similar arguments but with script pre-opened on | |
34 | * /dev/fd/xxx; perl checks script is as should be and does work. This was | |
35 | * insecure: see perlsec(1) for many problems with this approach. | |
36 | * | |
37 | * The "correct" flow should be: perl starts, opens script and notices it is | |
38 | * suid, checks many things, execs suidperl with similar arguments but with | |
39 | * script on /dev/fd/xxx; suidperl checks script and /dev/fd/xxx object are | |
40 | * same, checks arguments match #! line, sets itself with right UID, execs | |
41 | * perl with same arguments; perl checks many things and does work. | |
42 | * | |
43 | * (Opening the script in perl instead of suidperl, we "lose" scripts that | |
44 | * are readable to the target UID but not to the invoker. Where did | |
45 | * unreadable scripts work anyway?) | |
46 | * | |
47 | * For now, suidperl and perl are pretty much the same large and cumbersome | |
48 | * program, so suidperl can check its argument list (see comments elsewhere). | |
49 | * | |
50 | * References: | |
51 | * Original bug report: | |
52 | * http://bugs.perl.org/index.html?req=bug_id&bug_id=20010322.218 | |
53 | * http://rt.perl.org/rt2/Ticket/Display.html?id=6511 | |
54 | * Comments and discussion with Debian: | |
55 | * http://bugs.debian.org/203426 | |
56 | * http://bugs.debian.org/220486 | |
57 | * Debian Security Advisory DSA 431-1 (does not fully fix problem): | |
58 | * http://www.debian.org/security/2004/dsa-431 | |
59 | * CVE candidate: | |
60 | * http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0618 | |
61 | * Previous versions of this patch sent to perl5-porters: | |
62 | * http://www.mail-archive.com/perl5-porters@perl.org/msg71953.html | |
63 | * http://www.mail-archive.com/perl5-porters@perl.org/msg75245.html | |
64 | * http://www.mail-archive.com/perl5-porters@perl.org/msg75563.html | |
65 | * http://www.mail-archive.com/perl5-porters@perl.org/msg75635.html | |
66 | * | |
67 | Paul Szabo - psz@maths.usyd.edu.au http://www.maths.usyd.edu.au:8000/u/psz/ | |
68 | School of Mathematics and Statistics University of Sydney 2006 Australia | |
69 | * | |
70 | */ | |
71 | /* PSz 13 Nov 03 | |
72 | * Use truthful, neat, specific error messages. | |
73 | * Cannot always hide the truth; security must not depend on doing so. | |
74 | */ | |
75 | ||
76 | /* PSz 18 Feb 04 | |
77 | * Use global(?), thread-local fdscript for easier checks. | |
78 | * (I do not understand how we could possibly get a thread race: | |
79 | * do not all threads go through the same initialization? Or in | |
80 | * fact, are not threads started only after we get the script and | |
81 | * so know what to do? Oh well, make things super-safe...) | |
82 | */ | |
83 | ||
378cc40b | 84 | #include "EXTERN.h" |
864dbfa3 | 85 | #define PERL_IN_PERL_C |
378cc40b | 86 | #include "perl.h" |
e3321bb0 | 87 | #include "patchlevel.h" /* for local_patches */ |
378cc40b | 88 | |
011f1a1a JH |
89 | #ifdef NETWARE |
90 | #include "nwutil.h" | |
91 | char *nw_get_sitelib(const char *pl); | |
92 | #endif | |
93 | ||
df5cef82 | 94 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e LW |
95 | #ifdef I_UNISTD |
96 | #include <unistd.h> | |
97 | #endif | |
a0d0e21e | 98 | |
2aa47728 NC |
99 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
100 | # ifdef I_SYS_WAIT | |
101 | # include <sys/wait.h> | |
102 | # endif | |
bf357333 NC |
103 | # ifdef I_SYSUIO |
104 | # include <sys/uio.h> | |
105 | # endif | |
106 | ||
107 | union control_un { | |
108 | struct cmsghdr cm; | |
109 | char control[CMSG_SPACE(sizeof(int))]; | |
110 | }; | |
111 | ||
2aa47728 NC |
112 | #endif |
113 | ||
5311654c JH |
114 | #ifdef __BEOS__ |
115 | # define HZ 1000000 | |
116 | #endif | |
117 | ||
118 | #ifndef HZ | |
119 | # ifdef CLK_TCK | |
120 | # define HZ CLK_TCK | |
121 | # else | |
122 | # define HZ 60 | |
123 | # endif | |
124 | #endif | |
125 | ||
7114a2d2 | 126 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) && !defined(PERL_MICRO) |
20ce7b12 | 127 | char *getenv (char *); /* Usually in <stdlib.h> */ |
54310121 | 128 | #endif |
129 | ||
acfe0abc | 130 | static I32 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen); |
0cb96387 | 131 | |
a687059c | 132 | #ifdef DOSUID |
ec2019ad NC |
133 | # ifdef IAMSUID |
134 | /* Drop scriptname */ | |
135 | # define validate_suid(validarg, scriptname, fdscript, suidscript, linestr_sv, rsfp) S_validate_suid(aTHX_ validarg, fdscript, suidscript, linestr_sv, rsfp) | |
136 | # else | |
137 | /* Drop suidscript */ | |
138 | # define validate_suid(validarg, scriptname, fdscript, suidscript, linestr_sv, rsfp) S_validate_suid(aTHX_ validarg, scriptname, fdscript, linestr_sv, rsfp) | |
139 | # endif | |
140 | #else | |
141 | # ifdef SETUID_SCRIPTS_ARE_SECURE_NOW | |
142 | /* Drop everything. Heck, don't even try to call it */ | |
143 | # define validate_suid(validarg, scriptname, fdscript, suidscript, linestr_sv, rsfp) NOOP | |
144 | # else | |
145 | /* Drop almost everything */ | |
146 | # define validate_suid(validarg, scriptname, fdscript, suidscript, linestr_sv, rsfp) S_validate_suid(aTHX_ rsfp) | |
147 | # endif | |
a687059c | 148 | #endif |
8d063cd8 | 149 | |
d6f07c05 AL |
150 | #define CALL_BODY_EVAL(myop) \ |
151 | if (PL_op == (myop)) \ | |
139d0ce6 | 152 | PL_op = PL_ppaddr[OP_ENTEREVAL](aTHX); \ |
d6f07c05 AL |
153 | if (PL_op) \ |
154 | CALLRUNOPS(aTHX); | |
155 | ||
156 | #define CALL_BODY_SUB(myop) \ | |
157 | if (PL_op == (myop)) \ | |
139d0ce6 | 158 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); \ |
d6f07c05 AL |
159 | if (PL_op) \ |
160 | CALLRUNOPS(aTHX); | |
161 | ||
162 | #define CALL_LIST_BODY(cv) \ | |
163 | PUSHMARK(PL_stack_sp); \ | |
ad64d0ec | 164 | call_sv(MUTABLE_SV((cv)), G_EVAL|G_DISCARD); |
d6f07c05 | 165 | |
e6827a76 | 166 | static void |
daa7d858 | 167 | S_init_tls_and_interp(PerlInterpreter *my_perl) |
e6827a76 | 168 | { |
27da23d5 | 169 | dVAR; |
e6827a76 NC |
170 | if (!PL_curinterp) { |
171 | PERL_SET_INTERP(my_perl); | |
3db8f154 | 172 | #if defined(USE_ITHREADS) |
e6827a76 NC |
173 | INIT_THREADS; |
174 | ALLOC_THREAD_KEY; | |
175 | PERL_SET_THX(my_perl); | |
176 | OP_REFCNT_INIT; | |
71ad1b0c | 177 | HINTS_REFCNT_INIT; |
e6827a76 | 178 | MUTEX_INIT(&PL_dollarzero_mutex); |
06d86050 | 179 | # endif |
016af4f1 DM |
180 | #ifdef PERL_IMPLICIT_CONTEXT |
181 | MUTEX_INIT(&PL_my_ctx_mutex); | |
182 | # endif | |
e6827a76 | 183 | } |
c0bce9aa NC |
184 | #if defined(USE_ITHREADS) |
185 | else | |
186 | #else | |
187 | /* This always happens for non-ithreads */ | |
188 | #endif | |
189 | { | |
e6827a76 NC |
190 | PERL_SET_THX(my_perl); |
191 | } | |
192 | } | |
06d86050 | 193 | |
cbec8ebe DM |
194 | |
195 | /* these implement the PERL_SYS_INIT, PERL_SYS_INIT3, PERL_SYS_TERM macros */ | |
196 | ||
197 | void | |
198 | Perl_sys_init(int* argc, char*** argv) | |
199 | { | |
4fc0badb | 200 | dVAR; |
7918f24d NC |
201 | |
202 | PERL_ARGS_ASSERT_SYS_INIT; | |
203 | ||
cbec8ebe DM |
204 | PERL_UNUSED_ARG(argc); /* may not be used depending on _BODY macro */ |
205 | PERL_UNUSED_ARG(argv); | |
206 | PERL_SYS_INIT_BODY(argc, argv); | |
207 | } | |
208 | ||
209 | void | |
210 | Perl_sys_init3(int* argc, char*** argv, char*** env) | |
211 | { | |
4fc0badb | 212 | dVAR; |
7918f24d NC |
213 | |
214 | PERL_ARGS_ASSERT_SYS_INIT3; | |
215 | ||
cbec8ebe DM |
216 | PERL_UNUSED_ARG(argc); /* may not be used depending on _BODY macro */ |
217 | PERL_UNUSED_ARG(argv); | |
218 | PERL_UNUSED_ARG(env); | |
219 | PERL_SYS_INIT3_BODY(argc, argv, env); | |
220 | } | |
221 | ||
222 | void | |
d0820ef1 | 223 | Perl_sys_term() |
cbec8ebe | 224 | { |
4fc0badb | 225 | dVAR; |
bf81751b DM |
226 | if (!PL_veto_cleanup) { |
227 | PERL_SYS_TERM_BODY(); | |
228 | } | |
cbec8ebe DM |
229 | } |
230 | ||
231 | ||
32e30700 GS |
232 | #ifdef PERL_IMPLICIT_SYS |
233 | PerlInterpreter * | |
7766f137 GS |
234 | perl_alloc_using(struct IPerlMem* ipM, struct IPerlMem* ipMS, |
235 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
32e30700 GS |
236 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, |
237 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
238 | struct IPerlProc* ipP) | |
239 | { | |
240 | PerlInterpreter *my_perl; | |
7918f24d NC |
241 | |
242 | PERL_ARGS_ASSERT_PERL_ALLOC_USING; | |
243 | ||
9f653bb5 | 244 | /* Newx() needs interpreter, so call malloc() instead */ |
32e30700 | 245 | my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); |
e6827a76 | 246 | S_init_tls_and_interp(my_perl); |
32e30700 GS |
247 | Zero(my_perl, 1, PerlInterpreter); |
248 | PL_Mem = ipM; | |
7766f137 GS |
249 | PL_MemShared = ipMS; |
250 | PL_MemParse = ipMP; | |
32e30700 GS |
251 | PL_Env = ipE; |
252 | PL_StdIO = ipStd; | |
253 | PL_LIO = ipLIO; | |
254 | PL_Dir = ipD; | |
255 | PL_Sock = ipS; | |
256 | PL_Proc = ipP; | |
7cb608b5 | 257 | INIT_TRACK_MEMPOOL(PL_memory_debug_header, my_perl); |
7766f137 | 258 | |
32e30700 GS |
259 | return my_perl; |
260 | } | |
261 | #else | |
954c1994 GS |
262 | |
263 | /* | |
ccfc67b7 JH |
264 | =head1 Embedding Functions |
265 | ||
954c1994 GS |
266 | =for apidoc perl_alloc |
267 | ||
268 | Allocates a new Perl interpreter. See L<perlembed>. | |
269 | ||
270 | =cut | |
271 | */ | |
272 | ||
93a17b20 | 273 | PerlInterpreter * |
cea2e8a9 | 274 | perl_alloc(void) |
79072805 | 275 | { |
cea2e8a9 | 276 | PerlInterpreter *my_perl; |
79072805 | 277 | |
9f653bb5 | 278 | /* Newx() needs interpreter, so call malloc() instead */ |
e8ee3774 | 279 | my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); |
ba869deb | 280 | |
e6827a76 | 281 | S_init_tls_and_interp(my_perl); |
7cb608b5 | 282 | #ifndef PERL_TRACK_MEMPOOL |
07409e01 | 283 | return (PerlInterpreter *) ZeroD(my_perl, 1, PerlInterpreter); |
7cb608b5 NC |
284 | #else |
285 | Zero(my_perl, 1, PerlInterpreter); | |
286 | INIT_TRACK_MEMPOOL(PL_memory_debug_header, my_perl); | |
287 | return my_perl; | |
288 | #endif | |
79072805 | 289 | } |
32e30700 | 290 | #endif /* PERL_IMPLICIT_SYS */ |
79072805 | 291 | |
954c1994 GS |
292 | /* |
293 | =for apidoc perl_construct | |
294 | ||
295 | Initializes a new Perl interpreter. See L<perlembed>. | |
296 | ||
297 | =cut | |
298 | */ | |
299 | ||
79072805 | 300 | void |
0cb96387 | 301 | perl_construct(pTHXx) |
79072805 | 302 | { |
27da23d5 | 303 | dVAR; |
7918f24d NC |
304 | |
305 | PERL_ARGS_ASSERT_PERL_CONSTRUCT; | |
306 | ||
8990e307 | 307 | #ifdef MULTIPLICITY |
54aff467 | 308 | init_interp(); |
ac27b0f5 | 309 | PL_perl_destruct_level = 1; |
54aff467 | 310 | #else |
7918f24d | 311 | PERL_UNUSED_ARG(my_perl); |
54aff467 GS |
312 | if (PL_perl_destruct_level > 0) |
313 | init_interp(); | |
314 | #endif | |
34caed6d DM |
315 | PL_curcop = &PL_compiling; /* needed by ckWARN, right away */ |
316 | ||
34caed6d DM |
317 | /* set read-only and try to insure than we wont see REFCNT==0 |
318 | very often */ | |
319 | ||
320 | SvREADONLY_on(&PL_sv_undef); | |
321 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
322 | ||
323 | sv_setpv(&PL_sv_no,PL_No); | |
324 | /* value lookup in void context - happens to have the side effect | |
a43d94f2 NC |
325 | of caching the numeric forms. However, as &PL_sv_no doesn't contain |
326 | a string that is a valid numer, we have to turn the public flags by | |
327 | hand: */ | |
34caed6d | 328 | SvNV(&PL_sv_no); |
c1939273 | 329 | SvIV(&PL_sv_no); |
a43d94f2 NC |
330 | SvIOK_on(&PL_sv_no); |
331 | SvNOK_on(&PL_sv_no); | |
34caed6d DM |
332 | SvREADONLY_on(&PL_sv_no); |
333 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; | |
334 | ||
335 | sv_setpv(&PL_sv_yes,PL_Yes); | |
34caed6d | 336 | SvNV(&PL_sv_yes); |
c1939273 | 337 | SvIV(&PL_sv_yes); |
34caed6d DM |
338 | SvREADONLY_on(&PL_sv_yes); |
339 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; | |
340 | ||
341 | SvREADONLY_on(&PL_sv_placeholder); | |
342 | SvREFCNT(&PL_sv_placeholder) = (~(U32)0)/2; | |
343 | ||
344 | PL_sighandlerp = (Sighandler_t) Perl_sighandler; | |
ca0c25f6 | 345 | #ifdef PERL_USES_PL_PIDSTATUS |
34caed6d | 346 | PL_pidstatus = newHV(); |
ca0c25f6 | 347 | #endif |
79072805 | 348 | |
396482e1 | 349 | PL_rs = newSVpvs("\n"); |
dc92893f | 350 | |
cea2e8a9 | 351 | init_stacks(); |
79072805 | 352 | |
748a9306 | 353 | init_ids(); |
a5f75d66 | 354 | |
312caa8e | 355 | JMPENV_BOOTSTRAP; |
f86702cc | 356 | STATUS_ALL_SUCCESS; |
357 | ||
0672f40e | 358 | init_i18nl10n(1); |
36477c24 | 359 | SET_NUMERIC_STANDARD(); |
0b5b802d | 360 | |
ab821d7f | 361 | #if defined(LOCAL_PATCH_COUNT) |
3280af22 | 362 | PL_localpatches = local_patches; /* For possible -v */ |
ab821d7f | 363 | #endif |
364 | ||
52853b95 GS |
365 | #ifdef HAVE_INTERP_INTERN |
366 | sys_intern_init(); | |
367 | #endif | |
368 | ||
3a1ee7e8 | 369 | PerlIO_init(aTHX); /* Hook to IO system */ |
760ac839 | 370 | |
3280af22 NIS |
371 | PL_fdpid = newAV(); /* for remembering popen pids by fd */ |
372 | PL_modglobal = newHV(); /* pointers to per-interpreter module globals */ | |
396482e1 | 373 | PL_errors = newSVpvs(""); |
76f68e9b MHM |
374 | sv_setpvs(PERL_DEBUG_PAD(0), ""); /* For regex debugging. */ |
375 | sv_setpvs(PERL_DEBUG_PAD(1), ""); /* ext/re needs these */ | |
376 | sv_setpvs(PERL_DEBUG_PAD(2), ""); /* even without DEBUGGING. */ | |
1fcf4c12 | 377 | #ifdef USE_ITHREADS |
402d2eb1 NC |
378 | /* First entry is a list of empty elements. It needs to be initialised |
379 | else all hell breaks loose in S_find_uninit_var(). */ | |
380 | Perl_av_create_and_push(aTHX_ &PL_regex_padav, newSVpvs("")); | |
13137afc | 381 | PL_regex_pad = AvARRAY(PL_regex_padav); |
1fcf4c12 | 382 | #endif |
e5dd39fc | 383 | #ifdef USE_REENTRANT_API |
59bd0823 | 384 | Perl_reentrant_init(aTHX); |
e5dd39fc | 385 | #endif |
3d47000e AB |
386 | |
387 | /* Note that strtab is a rather special HV. Assumptions are made | |
388 | about not iterating on it, and not adding tie magic to it. | |
389 | It is properly deallocated in perl_destruct() */ | |
390 | PL_strtab = newHV(); | |
391 | ||
3d47000e AB |
392 | HvSHAREKEYS_off(PL_strtab); /* mandatory */ |
393 | hv_ksplit(PL_strtab, 512); | |
394 | ||
0631ea03 AB |
395 | #if defined(__DYNAMIC__) && (defined(NeXT) || defined(__NeXT__)) |
396 | _dyld_lookup_and_bind | |
397 | ("__environ", (unsigned long *) &environ_pointer, NULL); | |
398 | #endif /* environ */ | |
399 | ||
2f42fcb0 JH |
400 | #ifndef PERL_MICRO |
401 | # ifdef USE_ENVIRON_ARRAY | |
0631ea03 | 402 | PL_origenviron = environ; |
2f42fcb0 | 403 | # endif |
0631ea03 AB |
404 | #endif |
405 | ||
5311654c | 406 | /* Use sysconf(_SC_CLK_TCK) if available, if not |
dbc1d986 | 407 | * available or if the sysconf() fails, use the HZ. |
27da23d5 JH |
408 | * BeOS has those, but returns the wrong value. |
409 | * The HZ if not originally defined has been by now | |
410 | * been defined as CLK_TCK, if available. */ | |
dbc1d986 | 411 | #if defined(HAS_SYSCONF) && defined(_SC_CLK_TCK) && !defined(__BEOS__) |
5311654c JH |
412 | PL_clocktick = sysconf(_SC_CLK_TCK); |
413 | if (PL_clocktick <= 0) | |
414 | #endif | |
415 | PL_clocktick = HZ; | |
416 | ||
081fc587 AB |
417 | PL_stashcache = newHV(); |
418 | ||
8cb289bd | 419 | PL_patchlevel = Perl_newSVpvf(aTHX_ "v%d.%d.%d", (int)PERL_REVISION, |
e6830b13 | 420 | (int)PERL_VERSION, (int)PERL_SUBVERSION); |
d7aa5382 | 421 | |
27da23d5 JH |
422 | #ifdef HAS_MMAP |
423 | if (!PL_mmap_page_size) { | |
424 | #if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_MMAP_PAGE_SIZE)) | |
425 | { | |
426 | SETERRNO(0, SS_NORMAL); | |
427 | # ifdef _SC_PAGESIZE | |
428 | PL_mmap_page_size = sysconf(_SC_PAGESIZE); | |
429 | # else | |
430 | PL_mmap_page_size = sysconf(_SC_MMAP_PAGE_SIZE); | |
431 | # endif | |
432 | if ((long) PL_mmap_page_size < 0) { | |
433 | if (errno) { | |
44f8325f | 434 | SV * const error = ERRSV; |
d4c19fe8 | 435 | SvUPGRADE(error, SVt_PV); |
0510663f | 436 | Perl_croak(aTHX_ "panic: sysconf: %s", SvPV_nolen_const(error)); |
27da23d5 JH |
437 | } |
438 | else | |
439 | Perl_croak(aTHX_ "panic: sysconf: pagesize unknown"); | |
440 | } | |
441 | } | |
442 | #else | |
443 | # ifdef HAS_GETPAGESIZE | |
444 | PL_mmap_page_size = getpagesize(); | |
445 | # else | |
446 | # if defined(I_SYS_PARAM) && defined(PAGESIZE) | |
447 | PL_mmap_page_size = PAGESIZE; /* compiletime, bad */ | |
448 | # endif | |
449 | # endif | |
450 | #endif | |
451 | if (PL_mmap_page_size <= 0) | |
452 | Perl_croak(aTHX_ "panic: bad pagesize %" IVdf, | |
453 | (IV) PL_mmap_page_size); | |
454 | } | |
455 | #endif /* HAS_MMAP */ | |
456 | ||
457 | #if defined(HAS_TIMES) && defined(PERL_NEED_TIMESBASE) | |
458 | PL_timesbase.tms_utime = 0; | |
459 | PL_timesbase.tms_stime = 0; | |
460 | PL_timesbase.tms_cutime = 0; | |
461 | PL_timesbase.tms_cstime = 0; | |
462 | #endif | |
463 | ||
a3e6e81e | 464 | PL_registered_mros = newHV(); |
9e169432 NC |
465 | /* Start with 1 bucket, for DFS. It's unlikely we'll need more. */ |
466 | HvMAX(PL_registered_mros) = 0; | |
a3e6e81e | 467 | |
8990e307 | 468 | ENTER; |
79072805 LW |
469 | } |
470 | ||
954c1994 | 471 | /* |
62375a60 NIS |
472 | =for apidoc nothreadhook |
473 | ||
474 | Stub that provides thread hook for perl_destruct when there are | |
475 | no threads. | |
476 | ||
477 | =cut | |
478 | */ | |
479 | ||
480 | int | |
4e9e3734 | 481 | Perl_nothreadhook(pTHX) |
62375a60 | 482 | { |
96a5add6 | 483 | PERL_UNUSED_CONTEXT; |
62375a60 NIS |
484 | return 0; |
485 | } | |
486 | ||
41e4abd8 NC |
487 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
488 | void | |
489 | Perl_dump_sv_child(pTHX_ SV *sv) | |
490 | { | |
491 | ssize_t got; | |
bf357333 NC |
492 | const int sock = PL_dumper_fd; |
493 | const int debug_fd = PerlIO_fileno(Perl_debug_log); | |
bf357333 NC |
494 | union control_un control; |
495 | struct msghdr msg; | |
808ad2d0 | 496 | struct iovec vec[2]; |
bf357333 | 497 | struct cmsghdr *cmptr; |
808ad2d0 NC |
498 | int returned_errno; |
499 | unsigned char buffer[256]; | |
41e4abd8 | 500 | |
7918f24d NC |
501 | PERL_ARGS_ASSERT_DUMP_SV_CHILD; |
502 | ||
bf357333 | 503 | if(sock == -1 || debug_fd == -1) |
41e4abd8 NC |
504 | return; |
505 | ||
506 | PerlIO_flush(Perl_debug_log); | |
507 | ||
bf357333 NC |
508 | /* All these shenanigans are to pass a file descriptor over to our child for |
509 | it to dump out to. We can't let it hold open the file descriptor when it | |
510 | forks, as the file descriptor it will dump to can turn out to be one end | |
511 | of pipe that some other process will wait on for EOF. (So as it would | |
b293a5f8 | 512 | be open, the wait would be forever.) */ |
bf357333 NC |
513 | |
514 | msg.msg_control = control.control; | |
515 | msg.msg_controllen = sizeof(control.control); | |
516 | /* We're a connected socket so we don't need a destination */ | |
517 | msg.msg_name = NULL; | |
518 | msg.msg_namelen = 0; | |
519 | msg.msg_iov = vec; | |
808ad2d0 | 520 | msg.msg_iovlen = 1; |
bf357333 NC |
521 | |
522 | cmptr = CMSG_FIRSTHDR(&msg); | |
523 | cmptr->cmsg_len = CMSG_LEN(sizeof(int)); | |
524 | cmptr->cmsg_level = SOL_SOCKET; | |
525 | cmptr->cmsg_type = SCM_RIGHTS; | |
526 | *((int *)CMSG_DATA(cmptr)) = 1; | |
527 | ||
528 | vec[0].iov_base = (void*)&sv; | |
529 | vec[0].iov_len = sizeof(sv); | |
530 | got = sendmsg(sock, &msg, 0); | |
41e4abd8 NC |
531 | |
532 | if(got < 0) { | |
bf357333 | 533 | perror("Debug leaking scalars parent sendmsg failed"); |
41e4abd8 NC |
534 | abort(); |
535 | } | |
bf357333 NC |
536 | if(got < sizeof(sv)) { |
537 | perror("Debug leaking scalars parent short sendmsg"); | |
41e4abd8 NC |
538 | abort(); |
539 | } | |
540 | ||
808ad2d0 NC |
541 | /* Return protocol is |
542 | int: errno value | |
543 | unsigned char: length of location string (0 for empty) | |
544 | unsigned char*: string (not terminated) | |
545 | */ | |
546 | vec[0].iov_base = (void*)&returned_errno; | |
547 | vec[0].iov_len = sizeof(returned_errno); | |
548 | vec[1].iov_base = buffer; | |
549 | vec[1].iov_len = 1; | |
550 | ||
551 | got = readv(sock, vec, 2); | |
41e4abd8 NC |
552 | |
553 | if(got < 0) { | |
554 | perror("Debug leaking scalars parent read failed"); | |
808ad2d0 | 555 | PerlIO_flush(PerlIO_stderr()); |
41e4abd8 NC |
556 | abort(); |
557 | } | |
808ad2d0 | 558 | if(got < sizeof(returned_errno) + 1) { |
41e4abd8 | 559 | perror("Debug leaking scalars parent short read"); |
808ad2d0 | 560 | PerlIO_flush(PerlIO_stderr()); |
41e4abd8 NC |
561 | abort(); |
562 | } | |
563 | ||
808ad2d0 NC |
564 | if (*buffer) { |
565 | got = read(sock, buffer + 1, *buffer); | |
566 | if(got < 0) { | |
567 | perror("Debug leaking scalars parent read 2 failed"); | |
568 | PerlIO_flush(PerlIO_stderr()); | |
569 | abort(); | |
570 | } | |
571 | ||
572 | if(got < *buffer) { | |
573 | perror("Debug leaking scalars parent short read 2"); | |
574 | PerlIO_flush(PerlIO_stderr()); | |
575 | abort(); | |
576 | } | |
577 | } | |
578 | ||
579 | if (returned_errno || *buffer) { | |
580 | Perl_warn(aTHX_ "Debug leaking scalars child failed%s%.*s with errno" | |
581 | " %d: %s", (*buffer ? " at " : ""), (int) *buffer, buffer + 1, | |
582 | returned_errno, strerror(returned_errno)); | |
41e4abd8 NC |
583 | } |
584 | } | |
585 | #endif | |
586 | ||
62375a60 | 587 | /* |
954c1994 GS |
588 | =for apidoc perl_destruct |
589 | ||
590 | Shuts down a Perl interpreter. See L<perlembed>. | |
591 | ||
592 | =cut | |
593 | */ | |
594 | ||
31d77e54 | 595 | int |
0cb96387 | 596 | perl_destruct(pTHXx) |
79072805 | 597 | { |
27da23d5 | 598 | dVAR; |
be2ea8ed | 599 | VOL signed char destruct_level; /* see possible values in intrpvar.h */ |
a0d0e21e | 600 | HV *hv; |
2aa47728 | 601 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
2aa47728 NC |
602 | pid_t child; |
603 | #endif | |
8990e307 | 604 | |
7918f24d NC |
605 | PERL_ARGS_ASSERT_PERL_DESTRUCT; |
606 | #ifndef MULTIPLICITY | |
ed6c66dd | 607 | PERL_UNUSED_ARG(my_perl); |
7918f24d | 608 | #endif |
9d4ba2ae | 609 | |
7766f137 GS |
610 | /* wait for all pseudo-forked children to finish */ |
611 | PERL_WAIT_FOR_CHILDREN; | |
612 | ||
3280af22 | 613 | destruct_level = PL_perl_destruct_level; |
4633a7c4 LW |
614 | #ifdef DEBUGGING |
615 | { | |
9d4ba2ae AL |
616 | const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL"); |
617 | if (s) { | |
e1ec3a88 | 618 | const int i = atoi(s); |
5f05dabc | 619 | if (destruct_level < i) |
620 | destruct_level = i; | |
621 | } | |
4633a7c4 LW |
622 | } |
623 | #endif | |
624 | ||
27da23d5 | 625 | if (PL_exit_flags & PERL_EXIT_DESTRUCT_END) { |
f3faeb53 AB |
626 | dJMPENV; |
627 | int x = 0; | |
628 | ||
629 | JMPENV_PUSH(x); | |
1b6737cc | 630 | PERL_UNUSED_VAR(x); |
f3faeb53 AB |
631 | if (PL_endav && !PL_minus_c) |
632 | call_list(PL_scopestack_ix, PL_endav); | |
633 | JMPENV_POP; | |
26f423df | 634 | } |
f3faeb53 | 635 | LEAVE; |
a0d0e21e LW |
636 | FREETMPS; |
637 | ||
e00b64d4 | 638 | /* Need to flush since END blocks can produce output */ |
f13a2bc0 | 639 | my_fflush_all(); |
e00b64d4 | 640 | |
62375a60 NIS |
641 | if (CALL_FPTR(PL_threadhook)(aTHX)) { |
642 | /* Threads hook has vetoed further cleanup */ | |
c301d606 | 643 | PL_veto_cleanup = TRUE; |
37038d91 | 644 | return STATUS_EXIT; |
62375a60 NIS |
645 | } |
646 | ||
2aa47728 NC |
647 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
648 | if (destruct_level != 0) { | |
649 | /* Fork here to create a child. Our child's job is to preserve the | |
650 | state of scalars prior to destruction, so that we can instruct it | |
651 | to dump any scalars that we later find have leaked. | |
652 | There's no subtlety in this code - it assumes POSIX, and it doesn't | |
653 | fail gracefully */ | |
654 | int fd[2]; | |
655 | ||
656 | if(socketpair(AF_UNIX, SOCK_STREAM, 0, fd)) { | |
657 | perror("Debug leaking scalars socketpair failed"); | |
658 | abort(); | |
659 | } | |
660 | ||
661 | child = fork(); | |
662 | if(child == -1) { | |
663 | perror("Debug leaking scalars fork failed"); | |
664 | abort(); | |
665 | } | |
666 | if (!child) { | |
667 | /* We are the child */ | |
3125a5a4 NC |
668 | const int sock = fd[1]; |
669 | const int debug_fd = PerlIO_fileno(Perl_debug_log); | |
670 | int f; | |
808ad2d0 NC |
671 | const char *where; |
672 | /* Our success message is an integer 0, and a char 0 */ | |
b61433a9 | 673 | static const char success[sizeof(int) + 1] = {0}; |
3125a5a4 | 674 | |
2aa47728 | 675 | close(fd[0]); |
2aa47728 | 676 | |
3125a5a4 NC |
677 | /* We need to close all other file descriptors otherwise we end up |
678 | with interesting hangs, where the parent closes its end of a | |
679 | pipe, and sits waiting for (another) child to terminate. Only | |
680 | that child never terminates, because it never gets EOF, because | |
bf357333 NC |
681 | we also have the far end of the pipe open. We even need to |
682 | close the debugging fd, because sometimes it happens to be one | |
683 | end of a pipe, and a process is waiting on the other end for | |
684 | EOF. Normally it would be closed at some point earlier in | |
685 | destruction, but if we happen to cause the pipe to remain open, | |
686 | EOF never occurs, and we get an infinite hang. Hence all the | |
687 | games to pass in a file descriptor if it's actually needed. */ | |
3125a5a4 NC |
688 | |
689 | f = sysconf(_SC_OPEN_MAX); | |
690 | if(f < 0) { | |
808ad2d0 NC |
691 | where = "sysconf failed"; |
692 | goto abort; | |
3125a5a4 NC |
693 | } |
694 | while (f--) { | |
695 | if (f == sock) | |
696 | continue; | |
3125a5a4 NC |
697 | close(f); |
698 | } | |
699 | ||
2aa47728 NC |
700 | while (1) { |
701 | SV *target; | |
bf357333 NC |
702 | union control_un control; |
703 | struct msghdr msg; | |
704 | struct iovec vec[1]; | |
705 | struct cmsghdr *cmptr; | |
706 | ssize_t got; | |
707 | int got_fd; | |
708 | ||
709 | msg.msg_control = control.control; | |
710 | msg.msg_controllen = sizeof(control.control); | |
711 | /* We're a connected socket so we don't need a source */ | |
712 | msg.msg_name = NULL; | |
713 | msg.msg_namelen = 0; | |
714 | msg.msg_iov = vec; | |
715 | msg.msg_iovlen = sizeof(vec)/sizeof(vec[0]); | |
716 | ||
717 | vec[0].iov_base = (void*)⌖ | |
718 | vec[0].iov_len = sizeof(target); | |
719 | ||
720 | got = recvmsg(sock, &msg, 0); | |
2aa47728 NC |
721 | |
722 | if(got == 0) | |
723 | break; | |
724 | if(got < 0) { | |
808ad2d0 NC |
725 | where = "recv failed"; |
726 | goto abort; | |
2aa47728 NC |
727 | } |
728 | if(got < sizeof(target)) { | |
808ad2d0 NC |
729 | where = "short recv"; |
730 | goto abort; | |
2aa47728 | 731 | } |
bf357333 | 732 | |
808ad2d0 NC |
733 | if(!(cmptr = CMSG_FIRSTHDR(&msg))) { |
734 | where = "no cmsg"; | |
735 | goto abort; | |
736 | } | |
737 | if(cmptr->cmsg_len != CMSG_LEN(sizeof(int))) { | |
738 | where = "wrong cmsg_len"; | |
739 | goto abort; | |
740 | } | |
741 | if(cmptr->cmsg_level != SOL_SOCKET) { | |
742 | where = "wrong cmsg_level"; | |
743 | goto abort; | |
744 | } | |
745 | if(cmptr->cmsg_type != SCM_RIGHTS) { | |
746 | where = "wrong cmsg_type"; | |
747 | goto abort; | |
748 | } | |
bf357333 NC |
749 | |
750 | got_fd = *(int*)CMSG_DATA(cmptr); | |
751 | /* For our last little bit of trickery, put the file descriptor | |
752 | back into Perl_debug_log, as if we never actually closed it | |
753 | */ | |
808ad2d0 NC |
754 | if(got_fd != debug_fd) { |
755 | if (dup2(got_fd, debug_fd) == -1) { | |
756 | where = "dup2"; | |
757 | goto abort; | |
758 | } | |
759 | } | |
2aa47728 | 760 | sv_dump(target); |
bf357333 | 761 | |
2aa47728 NC |
762 | PerlIO_flush(Perl_debug_log); |
763 | ||
808ad2d0 | 764 | got = write(sock, &success, sizeof(success)); |
2aa47728 NC |
765 | |
766 | if(got < 0) { | |
808ad2d0 NC |
767 | where = "write failed"; |
768 | goto abort; | |
2aa47728 | 769 | } |
808ad2d0 NC |
770 | if(got < sizeof(success)) { |
771 | where = "short write"; | |
772 | goto abort; | |
2aa47728 NC |
773 | } |
774 | } | |
775 | _exit(0); | |
808ad2d0 NC |
776 | abort: |
777 | { | |
778 | int send_errno = errno; | |
779 | unsigned char length = (unsigned char) strlen(where); | |
780 | struct iovec failure[3] = { | |
781 | {(void*)&send_errno, sizeof(send_errno)}, | |
782 | {&length, 1}, | |
783 | {(void*)where, length} | |
784 | }; | |
785 | int got = writev(sock, failure, 3); | |
786 | /* Bad news travels fast. Faster than data. We'll get a SIGPIPE | |
787 | in the parent if we try to read from the socketpair after the | |
788 | child has exited, even if there was data to read. | |
789 | So sleep a bit to give the parent a fighting chance of | |
790 | reading the data. */ | |
791 | sleep(2); | |
792 | _exit((got == -1) ? errno : 0); | |
793 | } | |
bf357333 | 794 | /* End of child. */ |
2aa47728 | 795 | } |
41e4abd8 | 796 | PL_dumper_fd = fd[0]; |
2aa47728 NC |
797 | close(fd[1]); |
798 | } | |
799 | #endif | |
800 | ||
ff0cee69 | 801 | /* We must account for everything. */ |
802 | ||
803 | /* Destroy the main CV and syntax tree */ | |
17fbfdf6 NC |
804 | /* Do this now, because destroying ops can cause new SVs to be generated |
805 | in Perl_pad_swipe, and when running with -DDEBUG_LEAKING_SCALARS they | |
806 | PL_curcop to point to a valid op from which the filename structure | |
807 | member is copied. */ | |
808 | PL_curcop = &PL_compiling; | |
3280af22 | 809 | if (PL_main_root) { |
4e380990 DM |
810 | /* ensure comppad/curpad to refer to main's pad */ |
811 | if (CvPADLIST(PL_main_cv)) { | |
812 | PAD_SET_CUR_NOSAVE(CvPADLIST(PL_main_cv), 1); | |
813 | } | |
3280af22 | 814 | op_free(PL_main_root); |
5f66b61c | 815 | PL_main_root = NULL; |
a0d0e21e | 816 | } |
5f66b61c | 817 | PL_main_start = NULL; |
3280af22 | 818 | SvREFCNT_dec(PL_main_cv); |
601f1833 | 819 | PL_main_cv = NULL; |
24d3c518 | 820 | PL_dirty = TRUE; |
ff0cee69 | 821 | |
13621cfb NIS |
822 | /* Tell PerlIO we are about to tear things apart in case |
823 | we have layers which are using resources that should | |
824 | be cleaned up now. | |
825 | */ | |
826 | ||
827 | PerlIO_destruct(aTHX); | |
828 | ||
3280af22 | 829 | if (PL_sv_objcount) { |
a0d0e21e LW |
830 | /* |
831 | * Try to destruct global references. We do this first so that the | |
832 | * destructors and destructees still exist. Some sv's might remain. | |
833 | * Non-referenced objects are on their own. | |
834 | */ | |
a0d0e21e | 835 | sv_clean_objs(); |
bf9cdc68 | 836 | PL_sv_objcount = 0; |
a0de6cf5 | 837 | if (PL_defoutgv && !SvREFCNT(PL_defoutgv)) |
a0714e2c | 838 | PL_defoutgv = NULL; /* may have been freed */ |
8990e307 LW |
839 | } |
840 | ||
5cd24f17 | 841 | /* unhook hooks which will soon be, or use, destroyed data */ |
3280af22 | 842 | SvREFCNT_dec(PL_warnhook); |
a0714e2c | 843 | PL_warnhook = NULL; |
3280af22 | 844 | SvREFCNT_dec(PL_diehook); |
a0714e2c | 845 | PL_diehook = NULL; |
5cd24f17 | 846 | |
4b556e6c | 847 | /* call exit list functions */ |
3280af22 | 848 | while (PL_exitlistlen-- > 0) |
acfe0abc | 849 | PL_exitlist[PL_exitlistlen].fn(aTHX_ PL_exitlist[PL_exitlistlen].ptr); |
4b556e6c | 850 | |
3280af22 | 851 | Safefree(PL_exitlist); |
4b556e6c | 852 | |
1c4916e5 CB |
853 | PL_exitlist = NULL; |
854 | PL_exitlistlen = 0; | |
855 | ||
a3e6e81e NC |
856 | SvREFCNT_dec(PL_registered_mros); |
857 | ||
551a8b83 | 858 | /* jettison our possibly duplicated environment */ |
4b647fb0 DM |
859 | /* if PERL_USE_SAFE_PUTENV is defined environ will not have been copied |
860 | * so we certainly shouldn't free it here | |
861 | */ | |
2f42fcb0 | 862 | #ifndef PERL_MICRO |
4b647fb0 | 863 | #if defined(USE_ENVIRON_ARRAY) && !defined(PERL_USE_SAFE_PUTENV) |
50acdf95 | 864 | if (environ != PL_origenviron && !PL_use_safe_putenv |
4efc5df6 GS |
865 | #ifdef USE_ITHREADS |
866 | /* only main thread can free environ[0] contents */ | |
867 | && PL_curinterp == aTHX | |
868 | #endif | |
869 | ) | |
870 | { | |
551a8b83 JH |
871 | I32 i; |
872 | ||
873 | for (i = 0; environ[i]; i++) | |
4b420006 | 874 | safesysfree(environ[i]); |
0631ea03 | 875 | |
4b420006 JH |
876 | /* Must use safesysfree() when working with environ. */ |
877 | safesysfree(environ); | |
551a8b83 JH |
878 | |
879 | environ = PL_origenviron; | |
880 | } | |
881 | #endif | |
2f42fcb0 | 882 | #endif /* !PERL_MICRO */ |
551a8b83 | 883 | |
30985c42 JH |
884 | if (destruct_level == 0) { |
885 | ||
886 | DEBUG_P(debprofdump()); | |
887 | ||
888 | #if defined(PERLIO_LAYERS) | |
889 | /* No more IO - including error messages ! */ | |
890 | PerlIO_cleanup(aTHX); | |
891 | #endif | |
892 | ||
893 | CopFILE_free(&PL_compiling); | |
894 | CopSTASH_free(&PL_compiling); | |
895 | ||
896 | /* The exit() function will do everything that needs doing. */ | |
897 | return STATUS_EXIT; | |
898 | } | |
899 | ||
804ffa60 | 900 | /* reset so print() ends up where we expect */ |
a0714e2c | 901 | setdefout(NULL); |
804ffa60 | 902 | |
5f8cb046 DM |
903 | #ifdef USE_ITHREADS |
904 | /* the syntax tree is shared between clones | |
905 | * so op_free(PL_main_root) only ReREFCNT_dec's | |
906 | * REGEXPs in the parent interpreter | |
907 | * we need to manually ReREFCNT_dec for the clones | |
908 | */ | |
5f8cb046 | 909 | SvREFCNT_dec(PL_regex_padav); |
7d49f689 | 910 | PL_regex_padav = NULL; |
5f8cb046 DM |
911 | PL_regex_pad = NULL; |
912 | #endif | |
913 | ||
ad64d0ec | 914 | SvREFCNT_dec(MUTABLE_SV(PL_stashcache)); |
081fc587 AB |
915 | PL_stashcache = NULL; |
916 | ||
5f05dabc | 917 | /* loosen bonds of global variables */ |
918 | ||
2f9285f8 DM |
919 | /* XXX can PL_parser still be non-null here? */ |
920 | if(PL_parser && PL_parser->rsfp) { | |
921 | (void)PerlIO_close(PL_parser->rsfp); | |
922 | PL_parser->rsfp = NULL; | |
8ebc5c01 | 923 | } |
924 | ||
84386e14 RGS |
925 | if (PL_minus_F) { |
926 | Safefree(PL_splitstr); | |
927 | PL_splitstr = NULL; | |
928 | } | |
929 | ||
8ebc5c01 | 930 | /* switches */ |
3280af22 NIS |
931 | PL_minus_n = FALSE; |
932 | PL_minus_p = FALSE; | |
933 | PL_minus_l = FALSE; | |
934 | PL_minus_a = FALSE; | |
935 | PL_minus_F = FALSE; | |
936 | PL_doswitches = FALSE; | |
599cee73 | 937 | PL_dowarn = G_WARN_OFF; |
3280af22 NIS |
938 | PL_doextract = FALSE; |
939 | PL_sawampersand = FALSE; /* must save all match strings */ | |
3280af22 NIS |
940 | PL_unsafe = FALSE; |
941 | ||
942 | Safefree(PL_inplace); | |
bd61b366 | 943 | PL_inplace = NULL; |
a7cb1f99 | 944 | SvREFCNT_dec(PL_patchlevel); |
3280af22 NIS |
945 | |
946 | if (PL_e_script) { | |
947 | SvREFCNT_dec(PL_e_script); | |
a0714e2c | 948 | PL_e_script = NULL; |
8ebc5c01 | 949 | } |
950 | ||
bf9cdc68 RG |
951 | PL_perldb = 0; |
952 | ||
8ebc5c01 | 953 | /* magical thingies */ |
954 | ||
e23d9e2f CS |
955 | SvREFCNT_dec(PL_ofsgv); /* *, */ |
956 | PL_ofsgv = NULL; | |
5f05dabc | 957 | |
7889fe52 | 958 | SvREFCNT_dec(PL_ors_sv); /* $\ */ |
a0714e2c | 959 | PL_ors_sv = NULL; |
8ebc5c01 | 960 | |
3280af22 | 961 | SvREFCNT_dec(PL_rs); /* $/ */ |
a0714e2c | 962 | PL_rs = NULL; |
dc92893f | 963 | |
d33b2eba | 964 | Safefree(PL_osname); /* $^O */ |
bd61b366 | 965 | PL_osname = NULL; |
5f05dabc | 966 | |
3280af22 | 967 | SvREFCNT_dec(PL_statname); |
a0714e2c SS |
968 | PL_statname = NULL; |
969 | PL_statgv = NULL; | |
5f05dabc | 970 | |
8ebc5c01 | 971 | /* defgv, aka *_ should be taken care of elsewhere */ |
972 | ||
8ebc5c01 | 973 | /* clean up after study() */ |
3280af22 | 974 | SvREFCNT_dec(PL_lastscream); |
a0714e2c | 975 | PL_lastscream = NULL; |
3280af22 NIS |
976 | Safefree(PL_screamfirst); |
977 | PL_screamfirst = 0; | |
978 | Safefree(PL_screamnext); | |
979 | PL_screamnext = 0; | |
8ebc5c01 | 980 | |
7d5ea4e7 GS |
981 | /* float buffer */ |
982 | Safefree(PL_efloatbuf); | |
bd61b366 | 983 | PL_efloatbuf = NULL; |
7d5ea4e7 GS |
984 | PL_efloatsize = 0; |
985 | ||
8ebc5c01 | 986 | /* startup and shutdown function lists */ |
3280af22 | 987 | SvREFCNT_dec(PL_beginav); |
5a837c8f | 988 | SvREFCNT_dec(PL_beginav_save); |
3280af22 | 989 | SvREFCNT_dec(PL_endav); |
7d30b5c4 | 990 | SvREFCNT_dec(PL_checkav); |
ece599bd | 991 | SvREFCNT_dec(PL_checkav_save); |
3c10abe3 AG |
992 | SvREFCNT_dec(PL_unitcheckav); |
993 | SvREFCNT_dec(PL_unitcheckav_save); | |
3280af22 | 994 | SvREFCNT_dec(PL_initav); |
7d49f689 NC |
995 | PL_beginav = NULL; |
996 | PL_beginav_save = NULL; | |
997 | PL_endav = NULL; | |
998 | PL_checkav = NULL; | |
999 | PL_checkav_save = NULL; | |
3c10abe3 AG |
1000 | PL_unitcheckav = NULL; |
1001 | PL_unitcheckav_save = NULL; | |
7d49f689 | 1002 | PL_initav = NULL; |
5618dfe8 | 1003 | |
8ebc5c01 | 1004 | /* shortcuts just get cleared */ |
a0714e2c SS |
1005 | PL_envgv = NULL; |
1006 | PL_incgv = NULL; | |
1007 | PL_hintgv = NULL; | |
1008 | PL_errgv = NULL; | |
1009 | PL_argvgv = NULL; | |
1010 | PL_argvoutgv = NULL; | |
1011 | PL_stdingv = NULL; | |
1012 | PL_stderrgv = NULL; | |
1013 | PL_last_in_gv = NULL; | |
1014 | PL_replgv = NULL; | |
1015 | PL_DBgv = NULL; | |
1016 | PL_DBline = NULL; | |
1017 | PL_DBsub = NULL; | |
1018 | PL_DBsingle = NULL; | |
1019 | PL_DBtrace = NULL; | |
1020 | PL_DBsignal = NULL; | |
601f1833 | 1021 | PL_DBcv = NULL; |
7d49f689 | 1022 | PL_dbargs = NULL; |
5c284bb0 | 1023 | PL_debstash = NULL; |
8ebc5c01 | 1024 | |
7a1c5554 | 1025 | SvREFCNT_dec(PL_argvout_stack); |
7d49f689 | 1026 | PL_argvout_stack = NULL; |
8ebc5c01 | 1027 | |
5c831c24 | 1028 | SvREFCNT_dec(PL_modglobal); |
5c284bb0 | 1029 | PL_modglobal = NULL; |
5c831c24 | 1030 | SvREFCNT_dec(PL_preambleav); |
7d49f689 | 1031 | PL_preambleav = NULL; |
5c831c24 | 1032 | SvREFCNT_dec(PL_subname); |
a0714e2c | 1033 | PL_subname = NULL; |
ca0c25f6 | 1034 | #ifdef PERL_USES_PL_PIDSTATUS |
5c831c24 | 1035 | SvREFCNT_dec(PL_pidstatus); |
5c284bb0 | 1036 | PL_pidstatus = NULL; |
ca0c25f6 | 1037 | #endif |
5c831c24 | 1038 | SvREFCNT_dec(PL_toptarget); |
a0714e2c | 1039 | PL_toptarget = NULL; |
5c831c24 | 1040 | SvREFCNT_dec(PL_bodytarget); |
a0714e2c SS |
1041 | PL_bodytarget = NULL; |
1042 | PL_formtarget = NULL; | |
5c831c24 | 1043 | |
d33b2eba | 1044 | /* free locale stuff */ |
b9582b6a | 1045 | #ifdef USE_LOCALE_COLLATE |
d33b2eba | 1046 | Safefree(PL_collation_name); |
bd61b366 | 1047 | PL_collation_name = NULL; |
b9582b6a | 1048 | #endif |
d33b2eba | 1049 | |
b9582b6a | 1050 | #ifdef USE_LOCALE_NUMERIC |
d33b2eba | 1051 | Safefree(PL_numeric_name); |
bd61b366 | 1052 | PL_numeric_name = NULL; |
a453c169 | 1053 | SvREFCNT_dec(PL_numeric_radix_sv); |
a0714e2c | 1054 | PL_numeric_radix_sv = NULL; |
b9582b6a | 1055 | #endif |
d33b2eba | 1056 | |
5c831c24 GS |
1057 | /* clear utf8 character classes */ |
1058 | SvREFCNT_dec(PL_utf8_alnum); | |
1059 | SvREFCNT_dec(PL_utf8_alnumc); | |
1060 | SvREFCNT_dec(PL_utf8_ascii); | |
1061 | SvREFCNT_dec(PL_utf8_alpha); | |
1062 | SvREFCNT_dec(PL_utf8_space); | |
1063 | SvREFCNT_dec(PL_utf8_cntrl); | |
1064 | SvREFCNT_dec(PL_utf8_graph); | |
1065 | SvREFCNT_dec(PL_utf8_digit); | |
1066 | SvREFCNT_dec(PL_utf8_upper); | |
1067 | SvREFCNT_dec(PL_utf8_lower); | |
1068 | SvREFCNT_dec(PL_utf8_print); | |
1069 | SvREFCNT_dec(PL_utf8_punct); | |
1070 | SvREFCNT_dec(PL_utf8_xdigit); | |
1071 | SvREFCNT_dec(PL_utf8_mark); | |
1072 | SvREFCNT_dec(PL_utf8_toupper); | |
4dbdbdc2 | 1073 | SvREFCNT_dec(PL_utf8_totitle); |
5c831c24 | 1074 | SvREFCNT_dec(PL_utf8_tolower); |
b4e400f9 | 1075 | SvREFCNT_dec(PL_utf8_tofold); |
82686b01 JH |
1076 | SvREFCNT_dec(PL_utf8_idstart); |
1077 | SvREFCNT_dec(PL_utf8_idcont); | |
a0714e2c SS |
1078 | PL_utf8_alnum = NULL; |
1079 | PL_utf8_alnumc = NULL; | |
1080 | PL_utf8_ascii = NULL; | |
1081 | PL_utf8_alpha = NULL; | |
1082 | PL_utf8_space = NULL; | |
1083 | PL_utf8_cntrl = NULL; | |
1084 | PL_utf8_graph = NULL; | |
1085 | PL_utf8_digit = NULL; | |
1086 | PL_utf8_upper = NULL; | |
1087 | PL_utf8_lower = NULL; | |
1088 | PL_utf8_print = NULL; | |
1089 | PL_utf8_punct = NULL; | |
1090 | PL_utf8_xdigit = NULL; | |
1091 | PL_utf8_mark = NULL; | |
1092 | PL_utf8_toupper = NULL; | |
1093 | PL_utf8_totitle = NULL; | |
1094 | PL_utf8_tolower = NULL; | |
1095 | PL_utf8_tofold = NULL; | |
1096 | PL_utf8_idstart = NULL; | |
1097 | PL_utf8_idcont = NULL; | |
5c831c24 | 1098 | |
971a9dd3 | 1099 | if (!specialWARN(PL_compiling.cop_warnings)) |
72dc9ed5 | 1100 | PerlMemShared_free(PL_compiling.cop_warnings); |
a0714e2c | 1101 | PL_compiling.cop_warnings = NULL; |
c28fe1ec NC |
1102 | Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash); |
1103 | PL_compiling.cop_hints_hash = NULL; | |
05ec9bb3 NIS |
1104 | CopFILE_free(&PL_compiling); |
1105 | CopSTASH_free(&PL_compiling); | |
5c831c24 | 1106 | |
a0d0e21e | 1107 | /* Prepare to destruct main symbol table. */ |
5f05dabc | 1108 | |
3280af22 NIS |
1109 | hv = PL_defstash; |
1110 | PL_defstash = 0; | |
a0d0e21e | 1111 | SvREFCNT_dec(hv); |
5c831c24 | 1112 | SvREFCNT_dec(PL_curstname); |
a0714e2c | 1113 | PL_curstname = NULL; |
a0d0e21e | 1114 | |
5a844595 GS |
1115 | /* clear queued errors */ |
1116 | SvREFCNT_dec(PL_errors); | |
a0714e2c | 1117 | PL_errors = NULL; |
5a844595 | 1118 | |
dd69841b BB |
1119 | SvREFCNT_dec(PL_isarev); |
1120 | ||
a0d0e21e | 1121 | FREETMPS; |
0453d815 | 1122 | if (destruct_level >= 2 && ckWARN_d(WARN_INTERNAL)) { |
3280af22 | 1123 | if (PL_scopestack_ix != 0) |
9014280d | 1124 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
0453d815 | 1125 | "Unbalanced scopes: %ld more ENTERs than LEAVEs\n", |
3280af22 NIS |
1126 | (long)PL_scopestack_ix); |
1127 | if (PL_savestack_ix != 0) | |
9014280d | 1128 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
0453d815 | 1129 | "Unbalanced saves: %ld more saves than restores\n", |
3280af22 NIS |
1130 | (long)PL_savestack_ix); |
1131 | if (PL_tmps_floor != -1) | |
9014280d | 1132 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced tmps: %ld more allocs than frees\n", |
3280af22 | 1133 | (long)PL_tmps_floor + 1); |
a0d0e21e | 1134 | if (cxstack_ix != -1) |
9014280d | 1135 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced context: %ld more PUSHes than POPs\n", |
ff0cee69 | 1136 | (long)cxstack_ix + 1); |
a0d0e21e | 1137 | } |
8990e307 LW |
1138 | |
1139 | /* Now absolutely destruct everything, somehow or other, loops or no. */ | |
5226ed68 JH |
1140 | |
1141 | /* the 2 is for PL_fdpid and PL_strtab */ | |
d17ea597 | 1142 | while (sv_clean_all() > 2) |
5226ed68 JH |
1143 | ; |
1144 | ||
d4777f27 GS |
1145 | AvREAL_off(PL_fdpid); /* no surviving entries */ |
1146 | SvREFCNT_dec(PL_fdpid); /* needed in io_close() */ | |
7d49f689 | 1147 | PL_fdpid = NULL; |
d33b2eba | 1148 | |
6c644e78 GS |
1149 | #ifdef HAVE_INTERP_INTERN |
1150 | sys_intern_clear(); | |
1151 | #endif | |
1152 | ||
6e72f9df | 1153 | /* Destruct the global string table. */ |
1154 | { | |
1155 | /* Yell and reset the HeVAL() slots that are still holding refcounts, | |
1156 | * so that sv_free() won't fail on them. | |
80459961 NC |
1157 | * Now that the global string table is using a single hunk of memory |
1158 | * for both HE and HEK, we either need to explicitly unshare it the | |
1159 | * correct way, or actually free things here. | |
6e72f9df | 1160 | */ |
80459961 NC |
1161 | I32 riter = 0; |
1162 | const I32 max = HvMAX(PL_strtab); | |
c4420975 | 1163 | HE * const * const array = HvARRAY(PL_strtab); |
80459961 NC |
1164 | HE *hent = array[0]; |
1165 | ||
6e72f9df | 1166 | for (;;) { |
0453d815 | 1167 | if (hent && ckWARN_d(WARN_INTERNAL)) { |
44f8325f | 1168 | HE * const next = HeNEXT(hent); |
9014280d | 1169 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
44f8325f | 1170 | "Unbalanced string table refcount: (%ld) for \"%s\"", |
de616631 | 1171 | (long)hent->he_valu.hent_refcount, HeKEY(hent)); |
80459961 NC |
1172 | Safefree(hent); |
1173 | hent = next; | |
6e72f9df | 1174 | } |
1175 | if (!hent) { | |
1176 | if (++riter > max) | |
1177 | break; | |
1178 | hent = array[riter]; | |
1179 | } | |
1180 | } | |
80459961 NC |
1181 | |
1182 | Safefree(array); | |
1183 | HvARRAY(PL_strtab) = 0; | |
1184 | HvTOTALKEYS(PL_strtab) = 0; | |
1185 | HvFILL(PL_strtab) = 0; | |
6e72f9df | 1186 | } |
3280af22 | 1187 | SvREFCNT_dec(PL_strtab); |
6e72f9df | 1188 | |
e652bb2f | 1189 | #ifdef USE_ITHREADS |
c21d1a0f | 1190 | /* free the pointer tables used for cloning */ |
a0739874 | 1191 | ptr_table_free(PL_ptr_table); |
bf9cdc68 | 1192 | PL_ptr_table = (PTR_TBL_t*)NULL; |
53186e96 | 1193 | #endif |
a0739874 | 1194 | |
d33b2eba GS |
1195 | /* free special SVs */ |
1196 | ||
1197 | SvREFCNT(&PL_sv_yes) = 0; | |
1198 | sv_clear(&PL_sv_yes); | |
1199 | SvANY(&PL_sv_yes) = NULL; | |
4c5e2b0d | 1200 | SvFLAGS(&PL_sv_yes) = 0; |
d33b2eba GS |
1201 | |
1202 | SvREFCNT(&PL_sv_no) = 0; | |
1203 | sv_clear(&PL_sv_no); | |
1204 | SvANY(&PL_sv_no) = NULL; | |
4c5e2b0d | 1205 | SvFLAGS(&PL_sv_no) = 0; |
01724ea0 | 1206 | |
9f375a43 DM |
1207 | { |
1208 | int i; | |
1209 | for (i=0; i<=2; i++) { | |
1210 | SvREFCNT(PERL_DEBUG_PAD(i)) = 0; | |
1211 | sv_clear(PERL_DEBUG_PAD(i)); | |
1212 | SvANY(PERL_DEBUG_PAD(i)) = NULL; | |
1213 | SvFLAGS(PERL_DEBUG_PAD(i)) = 0; | |
1214 | } | |
1215 | } | |
1216 | ||
0453d815 | 1217 | if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL)) |
9014280d | 1218 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Scalars leaked: %ld\n", (long)PL_sv_count); |
6e72f9df | 1219 | |
eba0f806 DM |
1220 | #ifdef DEBUG_LEAKING_SCALARS |
1221 | if (PL_sv_count != 0) { | |
1222 | SV* sva; | |
1223 | SV* sv; | |
1224 | register SV* svend; | |
1225 | ||
ad64d0ec | 1226 | for (sva = PL_sv_arenaroot; sva; sva = MUTABLE_SV(SvANY(sva))) { |
eba0f806 DM |
1227 | svend = &sva[SvREFCNT(sva)]; |
1228 | for (sv = sva + 1; sv < svend; ++sv) { | |
1229 | if (SvTYPE(sv) != SVTYPEMASK) { | |
a548cda8 | 1230 | PerlIO_printf(Perl_debug_log, "leaked: sv=0x%p" |
61b61456 | 1231 | " flags=0x%"UVxf |
fd0854ff DM |
1232 | " refcnt=%"UVuf pTHX__FORMAT "\n" |
1233 | "\tallocated at %s:%d %s %s%s\n", | |
574b8821 NC |
1234 | (void*)sv, (UV)sv->sv_flags, (UV)sv->sv_refcnt |
1235 | pTHX__VALUE, | |
fd0854ff DM |
1236 | sv->sv_debug_file ? sv->sv_debug_file : "(unknown)", |
1237 | sv->sv_debug_line, | |
1238 | sv->sv_debug_inpad ? "for" : "by", | |
1239 | sv->sv_debug_optype ? | |
1240 | PL_op_name[sv->sv_debug_optype]: "(none)", | |
1241 | sv->sv_debug_cloned ? " (cloned)" : "" | |
1242 | ); | |
2aa47728 | 1243 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
41e4abd8 | 1244 | Perl_dump_sv_child(aTHX_ sv); |
2aa47728 | 1245 | #endif |
eba0f806 DM |
1246 | } |
1247 | } | |
1248 | } | |
1249 | } | |
2aa47728 NC |
1250 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
1251 | { | |
1252 | int status; | |
1253 | fd_set rset; | |
1254 | /* Wait for up to 4 seconds for child to terminate. | |
1255 | This seems to be the least effort way of timing out on reaping | |
1256 | its exit status. */ | |
1257 | struct timeval waitfor = {4, 0}; | |
41e4abd8 | 1258 | int sock = PL_dumper_fd; |
2aa47728 NC |
1259 | |
1260 | shutdown(sock, 1); | |
1261 | FD_ZERO(&rset); | |
1262 | FD_SET(sock, &rset); | |
1263 | select(sock + 1, &rset, NULL, NULL, &waitfor); | |
1264 | waitpid(child, &status, WNOHANG); | |
1265 | close(sock); | |
1266 | } | |
1267 | #endif | |
eba0f806 | 1268 | #endif |
77abb4c6 NC |
1269 | #ifdef DEBUG_LEAKING_SCALARS_ABORT |
1270 | if (PL_sv_count) | |
1271 | abort(); | |
1272 | #endif | |
bf9cdc68 | 1273 | PL_sv_count = 0; |
eba0f806 | 1274 | |
f1fac472 NC |
1275 | #ifdef PERL_DEBUG_READONLY_OPS |
1276 | free(PL_slabs); | |
1277 | PL_slabs = NULL; | |
1278 | PL_slab_count = 0; | |
1279 | #endif | |
eba0f806 | 1280 | |
56a2bab7 | 1281 | #if defined(PERLIO_LAYERS) |
3a1ee7e8 NIS |
1282 | /* No more IO - including error messages ! */ |
1283 | PerlIO_cleanup(aTHX); | |
1284 | #endif | |
1285 | ||
9f4bd222 | 1286 | /* sv_undef needs to stay immortal until after PerlIO_cleanup |
a0714e2c | 1287 | as currently layers use it rather than NULL as a marker |
9f4bd222 NIS |
1288 | for no arg - and will try and SvREFCNT_dec it. |
1289 | */ | |
1290 | SvREFCNT(&PL_sv_undef) = 0; | |
1291 | SvREADONLY_off(&PL_sv_undef); | |
1292 | ||
3280af22 | 1293 | Safefree(PL_origfilename); |
bd61b366 | 1294 | PL_origfilename = NULL; |
3280af22 | 1295 | Safefree(PL_reg_start_tmp); |
bf9cdc68 RG |
1296 | PL_reg_start_tmp = (char**)NULL; |
1297 | PL_reg_start_tmpl = 0; | |
43c5f42d | 1298 | Safefree(PL_reg_curpm); |
82ba1be6 | 1299 | Safefree(PL_reg_poscache); |
dd28f7bb | 1300 | free_tied_hv_pool(); |
3280af22 | 1301 | Safefree(PL_op_mask); |
cf36064f | 1302 | Safefree(PL_psig_ptr); |
bf9cdc68 | 1303 | PL_psig_ptr = (SV**)NULL; |
cf36064f | 1304 | Safefree(PL_psig_name); |
bf9cdc68 | 1305 | PL_psig_name = (SV**)NULL; |
2c2666fc | 1306 | Safefree(PL_bitcount); |
bd61b366 | 1307 | PL_bitcount = NULL; |
ce08f86c | 1308 | Safefree(PL_psig_pend); |
bf9cdc68 | 1309 | PL_psig_pend = (int*)NULL; |
a0714e2c | 1310 | PL_formfeed = NULL; |
6e72f9df | 1311 | nuke_stacks(); |
bf9cdc68 RG |
1312 | PL_tainting = FALSE; |
1313 | PL_taint_warn = FALSE; | |
3280af22 | 1314 | PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */ |
bf9cdc68 | 1315 | PL_debug = 0; |
ac27b0f5 | 1316 | |
a0d0e21e | 1317 | DEBUG_P(debprofdump()); |
d33b2eba | 1318 | |
e5dd39fc | 1319 | #ifdef USE_REENTRANT_API |
10bc17b6 | 1320 | Perl_reentrant_free(aTHX); |
e5dd39fc AB |
1321 | #endif |
1322 | ||
612f20c3 GS |
1323 | sv_free_arenas(); |
1324 | ||
5d9a96ca DM |
1325 | while (PL_regmatch_slab) { |
1326 | regmatch_slab *s = PL_regmatch_slab; | |
1327 | PL_regmatch_slab = PL_regmatch_slab->next; | |
1328 | Safefree(s); | |
1329 | } | |
1330 | ||
fc36a67e | 1331 | /* As the absolutely last thing, free the non-arena SV for mess() */ |
1332 | ||
3280af22 | 1333 | if (PL_mess_sv) { |
f350b448 NC |
1334 | /* we know that type == SVt_PVMG */ |
1335 | ||
9c63abab | 1336 | /* it could have accumulated taint magic */ |
f350b448 NC |
1337 | MAGIC* mg; |
1338 | MAGIC* moremagic; | |
1339 | for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) { | |
1340 | moremagic = mg->mg_moremagic; | |
1341 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global | |
1342 | && mg->mg_len >= 0) | |
1343 | Safefree(mg->mg_ptr); | |
1344 | Safefree(mg); | |
9c63abab | 1345 | } |
f350b448 | 1346 | |
fc36a67e | 1347 | /* we know that type >= SVt_PV */ |
8bd4d4c5 | 1348 | SvPV_free(PL_mess_sv); |
3280af22 NIS |
1349 | Safefree(SvANY(PL_mess_sv)); |
1350 | Safefree(PL_mess_sv); | |
a0714e2c | 1351 | PL_mess_sv = NULL; |
fc36a67e | 1352 | } |
37038d91 | 1353 | return STATUS_EXIT; |
79072805 LW |
1354 | } |
1355 | ||
954c1994 GS |
1356 | /* |
1357 | =for apidoc perl_free | |
1358 | ||
1359 | Releases a Perl interpreter. See L<perlembed>. | |
1360 | ||
1361 | =cut | |
1362 | */ | |
1363 | ||
79072805 | 1364 | void |
0cb96387 | 1365 | perl_free(pTHXx) |
79072805 | 1366 | { |
5174512c NC |
1367 | dVAR; |
1368 | ||
7918f24d NC |
1369 | PERL_ARGS_ASSERT_PERL_FREE; |
1370 | ||
c301d606 DM |
1371 | if (PL_veto_cleanup) |
1372 | return; | |
1373 | ||
7cb608b5 | 1374 | #ifdef PERL_TRACK_MEMPOOL |
55ef9aae MHM |
1375 | { |
1376 | /* | |
1377 | * Don't free thread memory if PERL_DESTRUCT_LEVEL is set to a non-zero | |
1378 | * value as we're probably hunting memory leaks then | |
1379 | */ | |
1380 | const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL"); | |
1381 | if (!s || atoi(s) == 0) { | |
4fd0a9b8 | 1382 | const U32 old_debug = PL_debug; |
55ef9aae MHM |
1383 | /* Emulate the PerlHost behaviour of free()ing all memory allocated in this |
1384 | thread at thread exit. */ | |
4fd0a9b8 NC |
1385 | if (DEBUG_m_TEST) { |
1386 | PerlIO_puts(Perl_debug_log, "Disabling memory debugging as we " | |
1387 | "free this thread's memory\n"); | |
1388 | PL_debug &= ~ DEBUG_m_FLAG; | |
1389 | } | |
55ef9aae MHM |
1390 | while(aTHXx->Imemory_debug_header.next != &(aTHXx->Imemory_debug_header)) |
1391 | safesysfree(sTHX + (char *)(aTHXx->Imemory_debug_header.next)); | |
4fd0a9b8 | 1392 | PL_debug = old_debug; |
55ef9aae MHM |
1393 | } |
1394 | } | |
7cb608b5 NC |
1395 | #endif |
1396 | ||
acfe0abc | 1397 | #if defined(WIN32) || defined(NETWARE) |
ce3e5b80 | 1398 | # if defined(PERL_IMPLICIT_SYS) |
b36c9a52 | 1399 | { |
acfe0abc | 1400 | # ifdef NETWARE |
7af12a34 | 1401 | void *host = nw_internal_host; |
acfe0abc | 1402 | # else |
7af12a34 | 1403 | void *host = w32_internal_host; |
acfe0abc | 1404 | # endif |
7af12a34 | 1405 | PerlMem_free(aTHXx); |
acfe0abc | 1406 | # ifdef NETWARE |
7af12a34 | 1407 | nw_delete_internal_host(host); |
acfe0abc | 1408 | # else |
7af12a34 | 1409 | win32_delete_internal_host(host); |
acfe0abc | 1410 | # endif |
7af12a34 | 1411 | } |
1c0ca838 GS |
1412 | # else |
1413 | PerlMem_free(aTHXx); | |
1414 | # endif | |
acfe0abc GS |
1415 | #else |
1416 | PerlMem_free(aTHXx); | |
76e3520e | 1417 | #endif |
79072805 LW |
1418 | } |
1419 | ||
b7f7fff6 | 1420 | #if defined(USE_ITHREADS) |
aebd1ac7 GA |
1421 | /* provide destructors to clean up the thread key when libperl is unloaded */ |
1422 | #ifndef WIN32 /* handled during DLL_PROCESS_DETACH in win32/perllib.c */ | |
1423 | ||
826955bd | 1424 | #if defined(__hpux) && !(defined(__ux_version) && __ux_version <= 1020) && !defined(__GNUC__) |
aebd1ac7 | 1425 | #pragma fini "perl_fini" |
666ad1ec GA |
1426 | #elif defined(__sun) && !defined(__GNUC__) |
1427 | #pragma fini (perl_fini) | |
aebd1ac7 GA |
1428 | #endif |
1429 | ||
0dbb1585 AL |
1430 | static void |
1431 | #if defined(__GNUC__) | |
1432 | __attribute__((destructor)) | |
aebd1ac7 | 1433 | #endif |
de009b76 | 1434 | perl_fini(void) |
aebd1ac7 | 1435 | { |
27da23d5 | 1436 | dVAR; |
c301d606 | 1437 | if (PL_curinterp && !PL_veto_cleanup) |
aebd1ac7 GA |
1438 | FREE_THREAD_KEY; |
1439 | } | |
1440 | ||
1441 | #endif /* WIN32 */ | |
1442 | #endif /* THREADS */ | |
1443 | ||
4b556e6c | 1444 | void |
864dbfa3 | 1445 | Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr) |
4b556e6c | 1446 | { |
97aff369 | 1447 | dVAR; |
3280af22 NIS |
1448 | Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry); |
1449 | PL_exitlist[PL_exitlistlen].fn = fn; | |
1450 | PL_exitlist[PL_exitlistlen].ptr = ptr; | |
1451 | ++PL_exitlistlen; | |
4b556e6c JD |
1452 | } |
1453 | ||
56cf6df8 RGS |
1454 | #ifdef HAS_PROCSELFEXE |
1455 | /* This is a function so that we don't hold on to MAXPATHLEN | |
1456 | bytes of stack longer than necessary | |
1457 | */ | |
1458 | STATIC void | |
e1ec3a88 | 1459 | S_procself_val(pTHX_ SV *sv, const char *arg0) |
56cf6df8 RGS |
1460 | { |
1461 | char buf[MAXPATHLEN]; | |
1462 | int len = readlink(PROCSELFEXE_PATH, buf, sizeof(buf) - 1); | |
1463 | ||
1464 | /* On Playstation2 Linux V1.0 (kernel 2.2.1) readlink(/proc/self/exe) | |
1465 | includes a spurious NUL which will cause $^X to fail in system | |
1466 | or backticks (this will prevent extensions from being built and | |
1467 | many tests from working). readlink is not meant to add a NUL. | |
1468 | Normal readlink works fine. | |
1469 | */ | |
1470 | if (len > 0 && buf[len-1] == '\0') { | |
1471 | len--; | |
1472 | } | |
1473 | ||
1474 | /* FreeBSD's implementation is acknowledged to be imperfect, sometimes | |
1475 | returning the text "unknown" from the readlink rather than the path | |
1476 | to the executable (or returning an error from the readlink). Any valid | |
1477 | path has a '/' in it somewhere, so use that to validate the result. | |
1478 | See http://www.freebsd.org/cgi/query-pr.cgi?pr=35703 | |
1479 | */ | |
1480 | if (len > 0 && memchr(buf, '/', len)) { | |
1481 | sv_setpvn(sv,buf,len); | |
1482 | } | |
1483 | else { | |
1484 | sv_setpv(sv,arg0); | |
1485 | } | |
1486 | } | |
1487 | #endif /* HAS_PROCSELFEXE */ | |
b7975bdd NC |
1488 | |
1489 | STATIC void | |
1490 | S_set_caret_X(pTHX) { | |
97aff369 | 1491 | dVAR; |
fafc274c | 1492 | GV* tmpgv = gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, SVt_PV); /* $^X */ |
b7975bdd NC |
1493 | if (tmpgv) { |
1494 | #ifdef HAS_PROCSELFEXE | |
1495 | S_procself_val(aTHX_ GvSV(tmpgv), PL_origargv[0]); | |
1496 | #else | |
1497 | #ifdef OS2 | |
c69033f2 | 1498 | sv_setpv(GvSVn(tmpgv), os2_execname(aTHX)); |
b7975bdd | 1499 | #else |
c69033f2 | 1500 | sv_setpv(GvSVn(tmpgv),PL_origargv[0]); |
b7975bdd NC |
1501 | #endif |
1502 | #endif | |
1503 | } | |
1504 | } | |
1505 | ||
954c1994 GS |
1506 | /* |
1507 | =for apidoc perl_parse | |
1508 | ||
1509 | Tells a Perl interpreter to parse a Perl script. See L<perlembed>. | |
1510 | ||
1511 | =cut | |
1512 | */ | |
1513 | ||
79072805 | 1514 | int |
0cb96387 | 1515 | perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env) |
8d063cd8 | 1516 | { |
27da23d5 | 1517 | dVAR; |
6224f72b | 1518 | I32 oldscope; |
6224f72b | 1519 | int ret; |
db36c5a1 | 1520 | dJMPENV; |
8d063cd8 | 1521 | |
7918f24d NC |
1522 | PERL_ARGS_ASSERT_PERL_PARSE; |
1523 | #ifndef MULTIPLICITY | |
ed6c66dd | 1524 | PERL_UNUSED_ARG(my_perl); |
7918f24d | 1525 | #endif |
9d4ba2ae | 1526 | |
ec2019ad NC |
1527 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW_AND_IAMSUID |
1528 | Perl_croak(aTHX_ "suidperl is no longer needed since the kernel can now " | |
1529 | "execute\nsetuid perl scripts securely.\n"); | |
a687059c LW |
1530 | #endif |
1531 | ||
b0891165 JH |
1532 | #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) |
1533 | /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0 | |
103dd899 | 1534 | * This MUST be done before any hash stores or fetches take place. |
008fb0c0 NC |
1535 | * If you set PL_rehash_seed (and assumedly also PL_rehash_seed_set) |
1536 | * yourself, it is your responsibility to provide a good random seed! | |
830b38bd | 1537 | * You can also define PERL_HASH_SEED in compile time, see hv.h. */ |
008fb0c0 NC |
1538 | if (!PL_rehash_seed_set) |
1539 | PL_rehash_seed = get_hash_seed(); | |
b0891165 | 1540 | { |
9d4ba2ae | 1541 | const char * const s = PerlEnv_getenv("PERL_HASH_SEED_DEBUG"); |
bed60192 | 1542 | |
1b6737cc AL |
1543 | if (s && (atoi(s) == 1)) |
1544 | PerlIO_printf(Perl_debug_log, "HASH_SEED = %"UVuf"\n", PL_rehash_seed); | |
b0891165 JH |
1545 | } |
1546 | #endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */ | |
1547 | ||
3280af22 | 1548 | PL_origargc = argc; |
e2975953 | 1549 | PL_origargv = argv; |
a0d0e21e | 1550 | |
a2722ac9 GA |
1551 | if (PL_origalen != 0) { |
1552 | PL_origalen = 1; /* don't use old PL_origalen if perl_parse() is called again */ | |
1553 | } | |
1554 | else { | |
3cb9023d JH |
1555 | /* Set PL_origalen be the sum of the contiguous argv[] |
1556 | * elements plus the size of the env in case that it is | |
e9137a8e | 1557 | * contiguous with the argv[]. This is used in mg.c:Perl_magic_set() |
3cb9023d JH |
1558 | * as the maximum modifiable length of $0. In the worst case |
1559 | * the area we are able to modify is limited to the size of | |
43c32782 | 1560 | * the original argv[0]. (See below for 'contiguous', though.) |
3cb9023d | 1561 | * --jhi */ |
e1ec3a88 | 1562 | const char *s = NULL; |
54bfe034 | 1563 | int i; |
1b6737cc | 1564 | const UV mask = |
7d8e7db3 | 1565 | ~(UV)(PTRSIZE == 4 ? 3 : PTRSIZE == 8 ? 7 : PTRSIZE == 16 ? 15 : 0); |
43c32782 | 1566 | /* Do the mask check only if the args seem like aligned. */ |
1b6737cc | 1567 | const UV aligned = |
43c32782 JH |
1568 | (mask < ~(UV)0) && ((PTR2UV(argv[0]) & mask) == PTR2UV(argv[0])); |
1569 | ||
1570 | /* See if all the arguments are contiguous in memory. Note | |
1571 | * that 'contiguous' is a loose term because some platforms | |
1572 | * align the argv[] and the envp[]. If the arguments look | |
1573 | * like non-aligned, assume that they are 'strictly' or | |
1574 | * 'traditionally' contiguous. If the arguments look like | |
1575 | * aligned, we just check that they are within aligned | |
1576 | * PTRSIZE bytes. As long as no system has something bizarre | |
1577 | * like the argv[] interleaved with some other data, we are | |
1578 | * fine. (Did I just evoke Murphy's Law?) --jhi */ | |
c8941eeb JH |
1579 | if (PL_origargv && PL_origargc >= 1 && (s = PL_origargv[0])) { |
1580 | while (*s) s++; | |
1581 | for (i = 1; i < PL_origargc; i++) { | |
1582 | if ((PL_origargv[i] == s + 1 | |
43c32782 | 1583 | #ifdef OS2 |
c8941eeb | 1584 | || PL_origargv[i] == s + 2 |
43c32782 | 1585 | #endif |
c8941eeb JH |
1586 | ) |
1587 | || | |
1588 | (aligned && | |
1589 | (PL_origargv[i] > s && | |
1590 | PL_origargv[i] <= | |
1591 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1592 | ) | |
1593 | { | |
1594 | s = PL_origargv[i]; | |
1595 | while (*s) s++; | |
1596 | } | |
1597 | else | |
1598 | break; | |
54bfe034 | 1599 | } |
54bfe034 | 1600 | } |
a4a109c2 JD |
1601 | |
1602 | #ifndef PERL_USE_SAFE_PUTENV | |
3cb9023d | 1603 | /* Can we grab env area too to be used as the area for $0? */ |
a4a109c2 | 1604 | if (s && PL_origenviron && !PL_use_safe_putenv) { |
9d419b5f | 1605 | if ((PL_origenviron[0] == s + 1) |
43c32782 JH |
1606 | || |
1607 | (aligned && | |
1608 | (PL_origenviron[0] > s && | |
1609 | PL_origenviron[0] <= | |
1610 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1611 | ) | |
1612 | { | |
9d419b5f | 1613 | #ifndef OS2 /* ENVIRON is read by the kernel too. */ |
43c32782 JH |
1614 | s = PL_origenviron[0]; |
1615 | while (*s) s++; | |
1616 | #endif | |
bd61b366 | 1617 | my_setenv("NoNe SuCh", NULL); |
43c32782 JH |
1618 | /* Force copy of environment. */ |
1619 | for (i = 1; PL_origenviron[i]; i++) { | |
1620 | if (PL_origenviron[i] == s + 1 | |
1621 | || | |
1622 | (aligned && | |
1623 | (PL_origenviron[i] > s && | |
1624 | PL_origenviron[i] <= | |
1625 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1626 | ) | |
1627 | { | |
1628 | s = PL_origenviron[i]; | |
1629 | while (*s) s++; | |
1630 | } | |
1631 | else | |
1632 | break; | |
54bfe034 | 1633 | } |
43c32782 | 1634 | } |
54bfe034 | 1635 | } |
a4a109c2 JD |
1636 | #endif /* !defined(PERL_USE_SAFE_PUTENV) */ |
1637 | ||
2d2af554 | 1638 | PL_origalen = s ? s - PL_origargv[0] + 1 : 0; |
54bfe034 JH |
1639 | } |
1640 | ||
3280af22 | 1641 | if (PL_do_undump) { |
a0d0e21e LW |
1642 | |
1643 | /* Come here if running an undumped a.out. */ | |
1644 | ||
3280af22 NIS |
1645 | PL_origfilename = savepv(argv[0]); |
1646 | PL_do_undump = FALSE; | |
a0d0e21e | 1647 | cxstack_ix = -1; /* start label stack again */ |
748a9306 | 1648 | init_ids(); |
b7975bdd NC |
1649 | assert (!PL_tainted); |
1650 | TAINT; | |
1651 | S_set_caret_X(aTHX); | |
1652 | TAINT_NOT; | |
a0d0e21e LW |
1653 | init_postdump_symbols(argc,argv,env); |
1654 | return 0; | |
1655 | } | |
1656 | ||
3280af22 | 1657 | if (PL_main_root) { |
3280af22 | 1658 | op_free(PL_main_root); |
5f66b61c | 1659 | PL_main_root = NULL; |
ff0cee69 | 1660 | } |
5f66b61c | 1661 | PL_main_start = NULL; |
3280af22 | 1662 | SvREFCNT_dec(PL_main_cv); |
601f1833 | 1663 | PL_main_cv = NULL; |
79072805 | 1664 | |
3280af22 NIS |
1665 | time(&PL_basetime); |
1666 | oldscope = PL_scopestack_ix; | |
599cee73 | 1667 | PL_dowarn = G_WARN_OFF; |
f86702cc | 1668 | |
14dd3ad8 | 1669 | JMPENV_PUSH(ret); |
6224f72b | 1670 | switch (ret) { |
312caa8e | 1671 | case 0: |
14dd3ad8 | 1672 | parse_body(env,xsinit); |
3c10abe3 AG |
1673 | if (PL_unitcheckav) |
1674 | call_list(oldscope, PL_unitcheckav); | |
7d30b5c4 GS |
1675 | if (PL_checkav) |
1676 | call_list(oldscope, PL_checkav); | |
14dd3ad8 GS |
1677 | ret = 0; |
1678 | break; | |
6224f72b GS |
1679 | case 1: |
1680 | STATUS_ALL_FAILURE; | |
1681 | /* FALL THROUGH */ | |
1682 | case 2: | |
1683 | /* my_exit() was called */ | |
3280af22 | 1684 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
1685 | LEAVE; |
1686 | FREETMPS; | |
3280af22 | 1687 | PL_curstash = PL_defstash; |
3c10abe3 AG |
1688 | if (PL_unitcheckav) |
1689 | call_list(oldscope, PL_unitcheckav); | |
7d30b5c4 GS |
1690 | if (PL_checkav) |
1691 | call_list(oldscope, PL_checkav); | |
37038d91 | 1692 | ret = STATUS_EXIT; |
14dd3ad8 | 1693 | break; |
6224f72b | 1694 | case 3: |
bf49b057 | 1695 | PerlIO_printf(Perl_error_log, "panic: top_env\n"); |
14dd3ad8 GS |
1696 | ret = 1; |
1697 | break; | |
6224f72b | 1698 | } |
14dd3ad8 GS |
1699 | JMPENV_POP; |
1700 | return ret; | |
1701 | } | |
1702 | ||
312caa8e | 1703 | STATIC void * |
14dd3ad8 | 1704 | S_parse_body(pTHX_ char **env, XSINIT_t xsinit) |
312caa8e | 1705 | { |
27da23d5 | 1706 | dVAR; |
2f9285f8 | 1707 | PerlIO *rsfp; |
312caa8e | 1708 | int argc = PL_origargc; |
8f42b153 | 1709 | char **argv = PL_origargv; |
e1ec3a88 | 1710 | const char *scriptname = NULL; |
312caa8e | 1711 | VOL bool dosearch = FALSE; |
829372d3 | 1712 | #ifdef DOSUID |
e1ec3a88 | 1713 | const char *validarg = ""; |
829372d3 | 1714 | #endif |
312caa8e | 1715 | register SV *sv; |
c7030b81 | 1716 | register char c; |
bd61b366 | 1717 | const char *cddir = NULL; |
ab019eaa | 1718 | #ifdef USE_SITECUSTOMIZE |
20ef40cf | 1719 | bool minus_f = FALSE; |
ab019eaa | 1720 | #endif |
009d90df | 1721 | SV *linestr_sv = newSV_type(SVt_PVIV); |
5486870f | 1722 | bool add_read_e_script = FALSE; |
009d90df DM |
1723 | |
1724 | SvGROW(linestr_sv, 80); | |
76f68e9b | 1725 | sv_setpvs(linestr_sv,""); |
312caa8e | 1726 | |
396482e1 | 1727 | sv = newSVpvs(""); /* first used for -I flags */ |
6224f72b GS |
1728 | SAVEFREESV(sv); |
1729 | init_main_stash(); | |
54310121 | 1730 | |
c7030b81 NC |
1731 | { |
1732 | const char *s; | |
6224f72b GS |
1733 | for (argc--,argv++; argc > 0; argc--,argv++) { |
1734 | if (argv[0][0] != '-' || !argv[0][1]) | |
1735 | break; | |
1736 | #ifdef DOSUID | |
1737 | if (*validarg) | |
1738 | validarg = " PHOOEY "; | |
1739 | else | |
1740 | validarg = argv[0]; | |
ae3f3efd PS |
1741 | /* |
1742 | * Can we rely on the kernel to start scripts with argv[1] set to | |
1743 | * contain all #! line switches (the whole line)? (argv[0] is set to | |
1744 | * the interpreter name, argv[2] to the script name; argv[3] and | |
1745 | * above may contain other arguments.) | |
1746 | */ | |
13281fa4 | 1747 | #endif |
6224f72b GS |
1748 | s = argv[0]+1; |
1749 | reswitch: | |
47f56822 | 1750 | switch ((c = *s)) { |
729a02f2 | 1751 | case 'C': |
1d5472a9 GS |
1752 | #ifndef PERL_STRICT_CR |
1753 | case '\r': | |
1754 | #endif | |
6224f72b GS |
1755 | case ' ': |
1756 | case '0': | |
1757 | case 'F': | |
1758 | case 'a': | |
1759 | case 'c': | |
1760 | case 'd': | |
1761 | case 'D': | |
1762 | case 'h': | |
1763 | case 'i': | |
1764 | case 'l': | |
1765 | case 'M': | |
1766 | case 'm': | |
1767 | case 'n': | |
1768 | case 'p': | |
1769 | case 's': | |
1770 | case 'u': | |
1771 | case 'U': | |
1772 | case 'v': | |
599cee73 PM |
1773 | case 'W': |
1774 | case 'X': | |
6224f72b | 1775 | case 'w': |
97bd5664 | 1776 | if ((s = moreswitches(s))) |
6224f72b GS |
1777 | goto reswitch; |
1778 | break; | |
33b78306 | 1779 | |
1dbad523 | 1780 | case 't': |
22f7c9c9 | 1781 | CHECK_MALLOC_TOO_LATE_FOR('t'); |
317ea90d MS |
1782 | if( !PL_tainting ) { |
1783 | PL_taint_warn = TRUE; | |
1784 | PL_tainting = TRUE; | |
1785 | } | |
1786 | s++; | |
1787 | goto reswitch; | |
6224f72b | 1788 | case 'T': |
22f7c9c9 | 1789 | CHECK_MALLOC_TOO_LATE_FOR('T'); |
3280af22 | 1790 | PL_tainting = TRUE; |
317ea90d | 1791 | PL_taint_warn = FALSE; |
6224f72b GS |
1792 | s++; |
1793 | goto reswitch; | |
f86702cc | 1794 | |
bc9b29db RH |
1795 | case 'E': |
1796 | PL_minus_E = TRUE; | |
1797 | /* FALL THROUGH */ | |
6224f72b | 1798 | case 'e': |
bf4acbe4 GS |
1799 | #ifdef MACOS_TRADITIONAL |
1800 | /* ignore -e for Dev:Pseudo argument */ | |
1801 | if (argv[1] && !strcmp(argv[1], "Dev:Pseudo")) | |
e55ac0fa | 1802 | break; |
bf4acbe4 | 1803 | #endif |
f20b2998 | 1804 | forbid_setid('e', FALSE); |
3280af22 | 1805 | if (!PL_e_script) { |
396482e1 | 1806 | PL_e_script = newSVpvs(""); |
5486870f | 1807 | add_read_e_script = TRUE; |
6224f72b GS |
1808 | } |
1809 | if (*++s) | |
3280af22 | 1810 | sv_catpv(PL_e_script, s); |
6224f72b | 1811 | else if (argv[1]) { |
3280af22 | 1812 | sv_catpv(PL_e_script, argv[1]); |
6224f72b GS |
1813 | argc--,argv++; |
1814 | } | |
1815 | else | |
47f56822 | 1816 | Perl_croak(aTHX_ "No code specified for -%c", c); |
396482e1 | 1817 | sv_catpvs(PL_e_script, "\n"); |
6224f72b | 1818 | break; |
afe37c7d | 1819 | |
20ef40cf | 1820 | case 'f': |
f5542d3a | 1821 | #ifdef USE_SITECUSTOMIZE |
20ef40cf | 1822 | minus_f = TRUE; |
f5542d3a | 1823 | #endif |
20ef40cf GA |
1824 | s++; |
1825 | goto reswitch; | |
1826 | ||
6224f72b | 1827 | case 'I': /* -I handled both here and in moreswitches() */ |
f20b2998 | 1828 | forbid_setid('I', FALSE); |
bd61b366 | 1829 | if (!*++s && (s=argv[1]) != NULL) { |
6224f72b GS |
1830 | argc--,argv++; |
1831 | } | |
6224f72b | 1832 | if (s && *s) { |
0df16ed7 | 1833 | STRLEN len = strlen(s); |
aec46f14 | 1834 | const char * const p = savepvn(s, len); |
20189146 | 1835 | incpush(p, TRUE, TRUE, FALSE, FALSE, FALSE); |
396482e1 | 1836 | sv_catpvs(sv, "-I"); |
0df16ed7 | 1837 | sv_catpvn(sv, p, len); |
396482e1 | 1838 | sv_catpvs(sv, " "); |
6224f72b | 1839 | Safefree(p); |
0df16ed7 GS |
1840 | } |
1841 | else | |
a67e862a | 1842 | Perl_croak(aTHX_ "No directory specified for -I"); |
6224f72b | 1843 | break; |
6224f72b | 1844 | case 'S': |
f20b2998 | 1845 | forbid_setid('S', FALSE); |
6224f72b GS |
1846 | dosearch = TRUE; |
1847 | s++; | |
1848 | goto reswitch; | |
1849 | case 'V': | |
7edfd0ef NC |
1850 | { |
1851 | SV *opts_prog; | |
1852 | ||
29a861e7 | 1853 | Perl_av_create_and_push(aTHX_ &PL_preambleav, newSVpvs("use Config;")); |
7edfd0ef | 1854 | if (*++s != ':') { |
389d73ad NC |
1855 | /* Can't do newSVpvs() as that would involve pre-processor |
1856 | condititionals inside a macro expansion. */ | |
1857 | opts_prog = Perl_newSVpv(aTHX_ "$_ = join ' ', sort qw(" | |
6224f72b | 1858 | # ifdef DEBUGGING |
e2e4dbf1 | 1859 | " DEBUGGING" |
6224f72b | 1860 | # endif |
3bcf5ed8 SP |
1861 | # ifdef NO_MATHOMS |
1862 | " NO_MATHOMS" | |
1863 | # endif | |
85e1fcb9 | 1864 | # ifdef PERL_DONT_CREATE_GVSV |
e2e4dbf1 | 1865 | " PERL_DONT_CREATE_GVSV" |
85e1fcb9 | 1866 | # endif |
85e1fcb9 | 1867 | # ifdef PERL_MALLOC_WRAP |
e2e4dbf1 | 1868 | " PERL_MALLOC_WRAP" |
85e1fcb9 | 1869 | # endif |
4724db38 NC |
1870 | # ifdef PERL_MEM_LOG |
1871 | " PERL_MEM_LOG" | |
1872 | # endif | |
1873 | # ifdef PERL_MEM_LOG_ENV | |
1874 | " PERL_MEM_LOG_ENV" | |
1875 | # endif | |
1876 | # ifdef PERL_MEM_LOG_ENV_FD | |
1877 | " PERL_MEM_LOG_ENV_FD" | |
1878 | # endif | |
1879 | # ifdef PERL_MEM_LOG_STDERR | |
1880 | " PERL_MEM_LOG_STDERR" | |
1881 | # endif | |
1882 | # ifdef PERL_MEM_LOG_TIMESTAMP | |
1883 | " PERL_MEM_LOG_TIMESTAMP" | |
1884 | # endif | |
1be1b388 MB |
1885 | # ifdef PERL_USE_DEVEL |
1886 | " PERL_USE_DEVEL" | |
1887 | # endif | |
417cd4a8 SP |
1888 | # ifdef PERL_USE_SAFE_PUTENV |
1889 | " PERL_USE_SAFE_PUTENV" | |
1890 | # endif | |
20ef40cf | 1891 | # ifdef USE_SITECUSTOMIZE |
e2e4dbf1 | 1892 | " USE_SITECUSTOMIZE" |
20ef40cf | 1893 | # endif |
e187df3b NC |
1894 | # ifdef USE_FAST_STDIO |
1895 | " USE_FAST_STDIO" | |
1896 | # endif | |
389d73ad | 1897 | , 0); |
efcaa95b | 1898 | |
b75885fd | 1899 | sv_catpv(opts_prog, PL_bincompat_options); |
389d73ad NC |
1900 | /* Terminate the qw(, and then wrap at 76 columns. */ |
1901 | sv_catpvs(opts_prog, "); s/(?=.{53})(.{1,53}) /$1\\n /mg;print Config::myconfig(),"); | |
1902 | #ifdef VMS | |
1903 | sv_catpvs(opts_prog,"\"\\nCharacteristics of this PERLSHR image: \\n"); | |
1904 | #else | |
1905 | sv_catpvs(opts_prog,"\"\\nCharacteristics of this binary (from libperl): \\n"); | |
1906 | #endif | |
389d73ad | 1907 | sv_catpvs(opts_prog," Compile-time options: $_\\n\","); |
b363f7ed | 1908 | |
6224f72b | 1909 | #if defined(LOCAL_PATCH_COUNT) |
7edfd0ef NC |
1910 | if (LOCAL_PATCH_COUNT > 0) { |
1911 | int i; | |
396482e1 | 1912 | sv_catpvs(opts_prog, |
7edfd0ef NC |
1913 | "\" Locally applied patches:\\n\","); |
1914 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { | |
1915 | if (PL_localpatches[i]) | |
46807d8e YO |
1916 | Perl_sv_catpvf(aTHX_ opts_prog,"q%c\t%s\n%c,", |
1917 | 0, PL_localpatches[i], 0); | |
7edfd0ef | 1918 | } |
6224f72b | 1919 | } |
6224f72b | 1920 | #endif |
7edfd0ef | 1921 | Perl_sv_catpvf(aTHX_ opts_prog, |
758ce194 | 1922 | "\" Built under %s\\n",OSNAME); |
6224f72b GS |
1923 | #ifdef __DATE__ |
1924 | # ifdef __TIME__ | |
895aa832 NC |
1925 | sv_catpvs(opts_prog, |
1926 | " Compiled at " __DATE__ " " __TIME__ "\\n\""); | |
6224f72b | 1927 | # else |
895aa832 | 1928 | sv_catpvs(opts_prog, " Compiled on " __DATE__ "\\n\""); |
6224f72b GS |
1929 | # endif |
1930 | #endif | |
396482e1 | 1931 | sv_catpvs(opts_prog, "; $\"=\"\\n \"; " |
7edfd0ef NC |
1932 | "@env = map { \"$_=\\\"$ENV{$_}\\\"\" } " |
1933 | "sort grep {/^PERL/} keys %ENV; "); | |
69fcd688 | 1934 | #ifdef __CYGWIN__ |
396482e1 | 1935 | sv_catpvs(opts_prog, |
7edfd0ef | 1936 | "push @env, \"CYGWIN=\\\"$ENV{CYGWIN}\\\"\";"); |
69fcd688 | 1937 | #endif |
396482e1 | 1938 | sv_catpvs(opts_prog, |
7edfd0ef NC |
1939 | "print \" \\%ENV:\\n @env\\n\" if @env;" |
1940 | "print \" \\@INC:\\n @INC\\n\";"); | |
1941 | } | |
1942 | else { | |
1943 | ++s; | |
1944 | opts_prog = Perl_newSVpvf(aTHX_ | |
1945 | "Config::config_vars(qw%c%s%c)", | |
1946 | 0, s, 0); | |
1947 | s += strlen(s); | |
1948 | } | |
1949 | av_push(PL_preambleav, opts_prog); | |
1950 | /* don't look for script or read stdin */ | |
1951 | scriptname = BIT_BUCKET; | |
1952 | goto reswitch; | |
6224f72b | 1953 | } |
6224f72b | 1954 | case 'x': |
3280af22 | 1955 | PL_doextract = TRUE; |
6224f72b | 1956 | s++; |
304334da | 1957 | if (*s) |
f4c556ac | 1958 | cddir = s; |
6224f72b GS |
1959 | break; |
1960 | case 0: | |
1961 | break; | |
1962 | case '-': | |
1963 | if (!*++s || isSPACE(*s)) { | |
1964 | argc--,argv++; | |
1965 | goto switch_end; | |
1966 | } | |
1967 | /* catch use of gnu style long options */ | |
1968 | if (strEQ(s, "version")) { | |
dd374669 | 1969 | s = (char *)"v"; |
6224f72b GS |
1970 | goto reswitch; |
1971 | } | |
1972 | if (strEQ(s, "help")) { | |
dd374669 | 1973 | s = (char *)"h"; |
6224f72b GS |
1974 | goto reswitch; |
1975 | } | |
1976 | s--; | |
1977 | /* FALL THROUGH */ | |
1978 | default: | |
cea2e8a9 | 1979 | Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s); |
8d063cd8 LW |
1980 | } |
1981 | } | |
c7030b81 NC |
1982 | } |
1983 | ||
6224f72b | 1984 | switch_end: |
54310121 | 1985 | |
c7030b81 NC |
1986 | { |
1987 | char *s; | |
1988 | ||
f675dbe5 CB |
1989 | if ( |
1990 | #ifndef SECURE_INTERNAL_GETENV | |
1991 | !PL_tainting && | |
1992 | #endif | |
cf756827 | 1993 | (s = PerlEnv_getenv("PERL5OPT"))) |
0df16ed7 | 1994 | { |
74288ac8 GS |
1995 | while (isSPACE(*s)) |
1996 | s++; | |
317ea90d | 1997 | if (*s == '-' && *(s+1) == 'T') { |
22f7c9c9 | 1998 | CHECK_MALLOC_TOO_LATE_FOR('T'); |
74288ac8 | 1999 | PL_tainting = TRUE; |
317ea90d MS |
2000 | PL_taint_warn = FALSE; |
2001 | } | |
74288ac8 | 2002 | else { |
bd61b366 | 2003 | char *popt_copy = NULL; |
74288ac8 | 2004 | while (s && *s) { |
54913509 | 2005 | const char *d; |
74288ac8 GS |
2006 | while (isSPACE(*s)) |
2007 | s++; | |
2008 | if (*s == '-') { | |
2009 | s++; | |
2010 | if (isSPACE(*s)) | |
2011 | continue; | |
2012 | } | |
4ea8f8fb | 2013 | d = s; |
74288ac8 GS |
2014 | if (!*s) |
2015 | break; | |
f0d36289 | 2016 | if (!strchr("CDIMUdmtw", *s)) |
cea2e8a9 | 2017 | Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s); |
4ea8f8fb MS |
2018 | while (++s && *s) { |
2019 | if (isSPACE(*s)) { | |
cf756827 | 2020 | if (!popt_copy) { |
bfa6c418 NC |
2021 | popt_copy = SvPVX(sv_2mortal(newSVpv(d,0))); |
2022 | s = popt_copy + (s - d); | |
2023 | d = popt_copy; | |
cf756827 | 2024 | } |
4ea8f8fb MS |
2025 | *s++ = '\0'; |
2026 | break; | |
2027 | } | |
2028 | } | |
1c4db469 | 2029 | if (*d == 't') { |
317ea90d MS |
2030 | if( !PL_tainting ) { |
2031 | PL_taint_warn = TRUE; | |
2032 | PL_tainting = TRUE; | |
2033 | } | |
1c4db469 | 2034 | } else { |
97bd5664 | 2035 | moreswitches(d); |
1c4db469 | 2036 | } |
6224f72b | 2037 | } |
6224f72b GS |
2038 | } |
2039 | } | |
c7030b81 | 2040 | } |
a0d0e21e | 2041 | |
20ef40cf GA |
2042 | #ifdef USE_SITECUSTOMIZE |
2043 | if (!minus_f) { | |
29a861e7 NC |
2044 | (void)Perl_av_create_and_unshift_one(aTHX_ &PL_preambleav, |
2045 | Perl_newSVpvf(aTHX_ "BEGIN { do '%s/sitecustomize.pl' }", SITELIB_EXP)); | |
20ef40cf GA |
2046 | } |
2047 | #endif | |
2048 | ||
6224f72b GS |
2049 | if (!scriptname) |
2050 | scriptname = argv[0]; | |
3280af22 | 2051 | if (PL_e_script) { |
6224f72b GS |
2052 | argc++,argv--; |
2053 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ | |
2054 | } | |
bd61b366 | 2055 | else if (scriptname == NULL) { |
6224f72b GS |
2056 | #ifdef MSDOS |
2057 | if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) ) | |
97bd5664 | 2058 | moreswitches("h"); |
6224f72b GS |
2059 | #endif |
2060 | scriptname = "-"; | |
2061 | } | |
2062 | ||
b7975bdd NC |
2063 | /* Set $^X early so that it can be used for relocatable paths in @INC */ |
2064 | assert (!PL_tainted); | |
2065 | TAINT; | |
2066 | S_set_caret_X(aTHX); | |
2067 | TAINT_NOT; | |
6224f72b GS |
2068 | init_perllib(); |
2069 | ||
a52eba0e | 2070 | { |
f20b2998 | 2071 | bool suidscript = FALSE; |
829372d3 NC |
2072 | |
2073 | #ifdef DOSUID | |
2074 | const int fdscript = | |
2075 | #endif | |
2076 | open_script(scriptname, dosearch, &suidscript, &rsfp); | |
6224f72b | 2077 | |
2f9285f8 DM |
2078 | validate_suid(validarg, scriptname, fdscript, suidscript, |
2079 | linestr_sv, rsfp); | |
6224f72b | 2080 | |
64ca3a65 | 2081 | #ifndef PERL_MICRO |
a52eba0e NC |
2082 | # if defined(SIGCHLD) || defined(SIGCLD) |
2083 | { | |
2084 | # ifndef SIGCHLD | |
2085 | # define SIGCHLD SIGCLD | |
2086 | # endif | |
2087 | Sighandler_t sigstate = rsignal_state(SIGCHLD); | |
2088 | if (sigstate == (Sighandler_t) SIG_IGN) { | |
2089 | if (ckWARN(WARN_SIGNAL)) | |
2090 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), | |
2091 | "Can't ignore signal CHLD, forcing to default"); | |
2092 | (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL); | |
2093 | } | |
0b5b802d | 2094 | } |
a52eba0e | 2095 | # endif |
64ca3a65 | 2096 | #endif |
0b5b802d | 2097 | |
a52eba0e | 2098 | if (PL_doextract |
bf4acbe4 | 2099 | #ifdef MACOS_TRADITIONAL |
a52eba0e | 2100 | || gMacPerl_AlwaysExtract |
bf4acbe4 | 2101 | #endif |
a52eba0e | 2102 | ) { |
faef540c | 2103 | |
f20b2998 | 2104 | /* This will croak if suidscript is true, as -x cannot be used with |
faef540c NC |
2105 | setuid scripts. */ |
2106 | forbid_setid('x', suidscript); | |
f20b2998 | 2107 | /* Hence you can't get here if suidscript is true */ |
faef540c | 2108 | |
2f9285f8 | 2109 | find_beginning(linestr_sv, rsfp); |
a52eba0e NC |
2110 | if (cddir && PerlDir_chdir( (char *)cddir ) < 0) |
2111 | Perl_croak(aTHX_ "Can't chdir to %s",cddir); | |
2112 | } | |
f4c556ac | 2113 | } |
6224f72b | 2114 | |
ea726b52 | 2115 | PL_main_cv = PL_compcv = MUTABLE_CV(newSV_type(SVt_PVCV)); |
3280af22 NIS |
2116 | CvUNIQUE_on(PL_compcv); |
2117 | ||
dd2155a4 | 2118 | CvPADLIST(PL_compcv) = pad_new(0); |
6224f72b | 2119 | |
dd69841b BB |
2120 | PL_isarev = newHV(); |
2121 | ||
0c4f7ff0 | 2122 | boot_core_PerlIO(); |
6224f72b | 2123 | boot_core_UNIVERSAL(); |
09bef843 | 2124 | boot_core_xsutils(); |
e1a479c5 | 2125 | boot_core_mro(); |
6224f72b GS |
2126 | |
2127 | if (xsinit) | |
acfe0abc | 2128 | (*xsinit)(aTHX); /* in case linked C routines want magical variables */ |
64ca3a65 | 2129 | #ifndef PERL_MICRO |
d0d72822 | 2130 | #if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(EPOC) || defined(SYMBIAN) |
c5be433b | 2131 | init_os_extras(); |
6224f72b | 2132 | #endif |
64ca3a65 | 2133 | #endif |
6224f72b | 2134 | |
29209bc5 | 2135 | #ifdef USE_SOCKS |
1b9c9cf5 DH |
2136 | # ifdef HAS_SOCKS5_INIT |
2137 | socks5_init(argv[0]); | |
2138 | # else | |
29209bc5 | 2139 | SOCKSinit(argv[0]); |
1b9c9cf5 | 2140 | # endif |
ac27b0f5 | 2141 | #endif |
29209bc5 | 2142 | |
6224f72b GS |
2143 | init_predump_symbols(); |
2144 | /* init_postdump_symbols not currently designed to be called */ | |
2145 | /* more than once (ENV isn't cleared first, for example) */ | |
2146 | /* But running with -u leaves %ENV & @ARGV undefined! XXX */ | |
3280af22 | 2147 | if (!PL_do_undump) |
6224f72b GS |
2148 | init_postdump_symbols(argc,argv,env); |
2149 | ||
27da23d5 JH |
2150 | /* PL_unicode is turned on by -C, or by $ENV{PERL_UNICODE}, |
2151 | * or explicitly in some platforms. | |
085a54d9 | 2152 | * locale.c:Perl_init_i18nl10n() if the environment |
a05d7ebb | 2153 | * look like the user wants to use UTF-8. */ |
a0fd4948 | 2154 | #if defined(__SYMBIAN32__) |
27da23d5 JH |
2155 | PL_unicode = PERL_UNICODE_STD_FLAG; /* See PERL_SYMBIAN_CONSOLE_UTF8. */ |
2156 | #endif | |
06e66572 JH |
2157 | if (PL_unicode) { |
2158 | /* Requires init_predump_symbols(). */ | |
a05d7ebb | 2159 | if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) { |
06e66572 JH |
2160 | IO* io; |
2161 | PerlIO* fp; | |
2162 | SV* sv; | |
2163 | ||
a05d7ebb | 2164 | /* Turn on UTF-8-ness on STDIN, STDOUT, STDERR |
06e66572 | 2165 | * and the default open disciplines. */ |
a05d7ebb JH |
2166 | if ((PL_unicode & PERL_UNICODE_STDIN_FLAG) && |
2167 | PL_stdingv && (io = GvIO(PL_stdingv)) && | |
2168 | (fp = IoIFP(io))) | |
2169 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2170 | if ((PL_unicode & PERL_UNICODE_STDOUT_FLAG) && | |
2171 | PL_defoutgv && (io = GvIO(PL_defoutgv)) && | |
2172 | (fp = IoOFP(io))) | |
2173 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2174 | if ((PL_unicode & PERL_UNICODE_STDERR_FLAG) && | |
2175 | PL_stderrgv && (io = GvIO(PL_stderrgv)) && | |
2176 | (fp = IoOFP(io))) | |
2177 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2178 | if ((PL_unicode & PERL_UNICODE_INOUT_FLAG) && | |
fafc274c NC |
2179 | (sv = GvSV(gv_fetchpvs("\017PEN", GV_ADD|GV_NOTQUAL, |
2180 | SVt_PV)))) { | |
a05d7ebb JH |
2181 | U32 in = PL_unicode & PERL_UNICODE_IN_FLAG; |
2182 | U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG; | |
2183 | if (in) { | |
2184 | if (out) | |
76f68e9b | 2185 | sv_setpvs(sv, ":utf8\0:utf8"); |
a05d7ebb | 2186 | else |
76f68e9b | 2187 | sv_setpvs(sv, ":utf8\0"); |
a05d7ebb JH |
2188 | } |
2189 | else if (out) | |
76f68e9b | 2190 | sv_setpvs(sv, "\0:utf8"); |
a05d7ebb JH |
2191 | SvSETMAGIC(sv); |
2192 | } | |
b310b053 JH |
2193 | } |
2194 | } | |
2195 | ||
c7030b81 NC |
2196 | { |
2197 | const char *s; | |
4ffa73a3 JH |
2198 | if ((s = PerlEnv_getenv("PERL_SIGNALS"))) { |
2199 | if (strEQ(s, "unsafe")) | |
2200 | PL_signals |= PERL_SIGNALS_UNSAFE_FLAG; | |
2201 | else if (strEQ(s, "safe")) | |
2202 | PL_signals &= ~PERL_SIGNALS_UNSAFE_FLAG; | |
2203 | else | |
2204 | Perl_croak(aTHX_ "PERL_SIGNALS illegal: \"%s\"", s); | |
2205 | } | |
c7030b81 | 2206 | } |
4ffa73a3 | 2207 | |
81d86705 | 2208 | #ifdef PERL_MAD |
c7030b81 NC |
2209 | { |
2210 | const char *s; | |
81d86705 NC |
2211 | if ((s = PerlEnv_getenv("PERL_XMLDUMP"))) { |
2212 | PL_madskills = 1; | |
2213 | PL_minus_c = 1; | |
2214 | if (!s || !s[0]) | |
2215 | PL_xmlfp = PerlIO_stdout(); | |
2216 | else { | |
2217 | PL_xmlfp = PerlIO_open(s, "w"); | |
2218 | if (!PL_xmlfp) | |
2219 | Perl_croak(aTHX_ "Can't open %s", s); | |
2220 | } | |
1a9a51d4 | 2221 | my_setenv("PERL_XMLDUMP", NULL); /* hide from subprocs */ |
81d86705 | 2222 | } |
c7030b81 NC |
2223 | } |
2224 | ||
2225 | { | |
2226 | const char *s; | |
81d86705 NC |
2227 | if ((s = PerlEnv_getenv("PERL_MADSKILLS"))) { |
2228 | PL_madskills = atoi(s); | |
1a9a51d4 | 2229 | my_setenv("PERL_MADSKILLS", NULL); /* hide from subprocs */ |
81d86705 | 2230 | } |
c7030b81 | 2231 | } |
81d86705 NC |
2232 | #endif |
2233 | ||
5486870f | 2234 | lex_start(linestr_sv, rsfp, TRUE); |
219f7226 | 2235 | PL_subname = newSVpvs("main"); |
6224f72b | 2236 | |
5486870f DM |
2237 | if (add_read_e_script) |
2238 | filter_add(read_e_script, NULL); | |
2239 | ||
6224f72b GS |
2240 | /* now parse the script */ |
2241 | ||
93189314 | 2242 | SETERRNO(0,SS_NORMAL); |
bf4acbe4 | 2243 | #ifdef MACOS_TRADITIONAL |
13765c85 | 2244 | if (gMacPerl_SyntaxError = (yyparse() || PL_parser->error_count)) { |
bf4acbe4 GS |
2245 | if (PL_minus_c) |
2246 | Perl_croak(aTHX_ "%s had compilation errors.\n", MacPerl_MPWFileName(PL_origfilename)); | |
2247 | else { | |
2248 | Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", | |
2249 | MacPerl_MPWFileName(PL_origfilename)); | |
2250 | } | |
2251 | } | |
2252 | #else | |
13765c85 | 2253 | if (yyparse() || PL_parser->error_count) { |
3280af22 | 2254 | if (PL_minus_c) |
cea2e8a9 | 2255 | Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename); |
6224f72b | 2256 | else { |
cea2e8a9 | 2257 | Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", |
097ee67d | 2258 | PL_origfilename); |
6224f72b GS |
2259 | } |
2260 | } | |
bf4acbe4 | 2261 | #endif |
57843af0 | 2262 | CopLINE_set(PL_curcop, 0); |
3280af22 | 2263 | PL_curstash = PL_defstash; |
3280af22 NIS |
2264 | if (PL_e_script) { |
2265 | SvREFCNT_dec(PL_e_script); | |
a0714e2c | 2266 | PL_e_script = NULL; |
6224f72b GS |
2267 | } |
2268 | ||
3280af22 | 2269 | if (PL_do_undump) |
6224f72b GS |
2270 | my_unexec(); |
2271 | ||
57843af0 GS |
2272 | if (isWARN_ONCE) { |
2273 | SAVECOPFILE(PL_curcop); | |
2274 | SAVECOPLINE(PL_curcop); | |
3280af22 | 2275 | gv_check(PL_defstash); |
57843af0 | 2276 | } |
6224f72b GS |
2277 | |
2278 | LEAVE; | |
2279 | FREETMPS; | |
2280 | ||
2281 | #ifdef MYMALLOC | |
f6a607bc RGS |
2282 | { |
2283 | const char *s; | |
6224f72b GS |
2284 | if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) |
2285 | dump_mstats("after compilation:"); | |
f6a607bc | 2286 | } |
6224f72b GS |
2287 | #endif |
2288 | ||
2289 | ENTER; | |
3280af22 | 2290 | PL_restartop = 0; |
312caa8e | 2291 | return NULL; |
6224f72b GS |
2292 | } |
2293 | ||
954c1994 GS |
2294 | /* |
2295 | =for apidoc perl_run | |
2296 | ||
2297 | Tells a Perl interpreter to run. See L<perlembed>. | |
2298 | ||
2299 | =cut | |
2300 | */ | |
2301 | ||
6224f72b | 2302 | int |
0cb96387 | 2303 | perl_run(pTHXx) |
6224f72b | 2304 | { |
97aff369 | 2305 | dVAR; |
6224f72b | 2306 | I32 oldscope; |
14dd3ad8 | 2307 | int ret = 0; |
db36c5a1 | 2308 | dJMPENV; |
6224f72b | 2309 | |
7918f24d NC |
2310 | PERL_ARGS_ASSERT_PERL_RUN; |
2311 | #ifndef MULTIPLICITY | |
ed6c66dd | 2312 | PERL_UNUSED_ARG(my_perl); |
7918f24d | 2313 | #endif |
9d4ba2ae | 2314 | |
3280af22 | 2315 | oldscope = PL_scopestack_ix; |
96e176bf CL |
2316 | #ifdef VMS |
2317 | VMSISH_HUSHED = 0; | |
2318 | #endif | |
6224f72b | 2319 | |
14dd3ad8 | 2320 | JMPENV_PUSH(ret); |
6224f72b GS |
2321 | switch (ret) { |
2322 | case 1: | |
2323 | cxstack_ix = -1; /* start context stack again */ | |
312caa8e | 2324 | goto redo_body; |
14dd3ad8 | 2325 | case 0: /* normal completion */ |
14dd3ad8 GS |
2326 | redo_body: |
2327 | run_body(oldscope); | |
14dd3ad8 GS |
2328 | /* FALL THROUGH */ |
2329 | case 2: /* my_exit() */ | |
3280af22 | 2330 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
2331 | LEAVE; |
2332 | FREETMPS; | |
3280af22 | 2333 | PL_curstash = PL_defstash; |
3a1ee7e8 | 2334 | if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) && |
31d77e54 AB |
2335 | PL_endav && !PL_minus_c) |
2336 | call_list(oldscope, PL_endav); | |
6224f72b GS |
2337 | #ifdef MYMALLOC |
2338 | if (PerlEnv_getenv("PERL_DEBUG_MSTATS")) | |
2339 | dump_mstats("after execution: "); | |
2340 | #endif | |
37038d91 | 2341 | ret = STATUS_EXIT; |
14dd3ad8 | 2342 | break; |
6224f72b | 2343 | case 3: |
312caa8e CS |
2344 | if (PL_restartop) { |
2345 | POPSTACK_TO(PL_mainstack); | |
2346 | goto redo_body; | |
6224f72b | 2347 | } |
bf49b057 | 2348 | PerlIO_printf(Perl_error_log, "panic: restartop\n"); |
312caa8e | 2349 | FREETMPS; |
14dd3ad8 GS |
2350 | ret = 1; |
2351 | break; | |
6224f72b GS |
2352 | } |
2353 | ||
14dd3ad8 GS |
2354 | JMPENV_POP; |
2355 | return ret; | |
312caa8e CS |
2356 | } |
2357 | ||
dd374669 | 2358 | STATIC void |
14dd3ad8 GS |
2359 | S_run_body(pTHX_ I32 oldscope) |
2360 | { | |
97aff369 | 2361 | dVAR; |
6224f72b | 2362 | DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n", |
3280af22 | 2363 | PL_sawampersand ? "Enabling" : "Omitting")); |
6224f72b | 2364 | |
3280af22 | 2365 | if (!PL_restartop) { |
81d86705 NC |
2366 | #ifdef PERL_MAD |
2367 | if (PL_xmlfp) { | |
2368 | xmldump_all(); | |
2369 | exit(0); /* less likely to core dump than my_exit(0) */ | |
2370 | } | |
2371 | #endif | |
6224f72b | 2372 | DEBUG_x(dump_all()); |
cf2782cd | 2373 | #ifdef DEBUGGING |
ecae49c0 NC |
2374 | if (!DEBUG_q_TEST) |
2375 | PERL_DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); | |
cf2782cd | 2376 | #endif |
6224f72b | 2377 | |
3280af22 | 2378 | if (PL_minus_c) { |
bf4acbe4 | 2379 | #ifdef MACOS_TRADITIONAL |
e69a2255 JH |
2380 | PerlIO_printf(Perl_error_log, "%s%s syntax OK\n", |
2381 | (gMacPerl_ErrorFormat ? "# " : ""), | |
2382 | MacPerl_MPWFileName(PL_origfilename)); | |
bf4acbe4 | 2383 | #else |
bf49b057 | 2384 | PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename); |
bf4acbe4 | 2385 | #endif |
6224f72b GS |
2386 | my_exit(0); |
2387 | } | |
3280af22 | 2388 | if (PERLDB_SINGLE && PL_DBsingle) |
ac27b0f5 | 2389 | sv_setiv(PL_DBsingle, 1); |
3280af22 NIS |
2390 | if (PL_initav) |
2391 | call_list(oldscope, PL_initav); | |
f1fac472 NC |
2392 | #ifdef PERL_DEBUG_READONLY_OPS |
2393 | Perl_pending_Slabs_to_ro(aTHX); | |
2394 | #endif | |
6224f72b GS |
2395 | } |
2396 | ||
2397 | /* do it */ | |
2398 | ||
3280af22 | 2399 | if (PL_restartop) { |
533c011a | 2400 | PL_op = PL_restartop; |
3280af22 | 2401 | PL_restartop = 0; |
cea2e8a9 | 2402 | CALLRUNOPS(aTHX); |
6224f72b | 2403 | } |
3280af22 NIS |
2404 | else if (PL_main_start) { |
2405 | CvDEPTH(PL_main_cv) = 1; | |
533c011a | 2406 | PL_op = PL_main_start; |
cea2e8a9 | 2407 | CALLRUNOPS(aTHX); |
6224f72b | 2408 | } |
f6b3007c JH |
2409 | my_exit(0); |
2410 | /* NOTREACHED */ | |
6224f72b GS |
2411 | } |
2412 | ||
954c1994 | 2413 | /* |
ccfc67b7 JH |
2414 | =head1 SV Manipulation Functions |
2415 | ||
954c1994 GS |
2416 | =for apidoc p||get_sv |
2417 | ||
64ace3f8 NC |
2418 | Returns the SV of the specified Perl scalar. C<flags> are passed to |
2419 | C<gv_fetchpv>. If C<GV_ADD> is set and the | |
2420 | Perl variable does not exist then it will be created. If C<flags> is zero | |
2421 | and the variable does not exist then NULL is returned. | |
954c1994 GS |
2422 | |
2423 | =cut | |
2424 | */ | |
2425 | ||
6224f72b | 2426 | SV* |
64ace3f8 | 2427 | Perl_get_sv(pTHX_ const char *name, I32 flags) |
6224f72b GS |
2428 | { |
2429 | GV *gv; | |
7918f24d NC |
2430 | |
2431 | PERL_ARGS_ASSERT_GET_SV; | |
2432 | ||
64ace3f8 | 2433 | gv = gv_fetchpv(name, flags, SVt_PV); |
6224f72b GS |
2434 | if (gv) |
2435 | return GvSV(gv); | |
a0714e2c | 2436 | return NULL; |
6224f72b GS |
2437 | } |
2438 | ||
954c1994 | 2439 | /* |
ccfc67b7 JH |
2440 | =head1 Array Manipulation Functions |
2441 | ||
954c1994 GS |
2442 | =for apidoc p||get_av |
2443 | ||
cbfd0a87 NC |
2444 | Returns the AV of the specified Perl array. C<flags> are passed to |
2445 | C<gv_fetchpv>. If C<GV_ADD> is set and the | |
2446 | Perl variable does not exist then it will be created. If C<flags> is zero | |
2447 | and the variable does not exist then NULL is returned. | |
954c1994 GS |
2448 | |
2449 | =cut | |
2450 | */ | |
2451 | ||
6224f72b | 2452 | AV* |
cbfd0a87 | 2453 | Perl_get_av(pTHX_ const char *name, I32 flags) |
6224f72b | 2454 | { |
cbfd0a87 | 2455 | GV* const gv = gv_fetchpv(name, flags, SVt_PVAV); |
7918f24d NC |
2456 | |
2457 | PERL_ARGS_ASSERT_GET_AV; | |
2458 | ||
cbfd0a87 | 2459 | if (flags) |
6224f72b GS |
2460 | return GvAVn(gv); |
2461 | if (gv) | |
2462 | return GvAV(gv); | |
7d49f689 | 2463 | return NULL; |
6224f72b GS |
2464 | } |
2465 | ||
954c1994 | 2466 | /* |
ccfc67b7 JH |
2467 | =head1 Hash Manipulation Functions |
2468 | ||
954c1994 GS |
2469 | =for apidoc p||get_hv |
2470 | ||
6673a63c NC |
2471 | Returns the HV of the specified Perl hash. C<flags> are passed to |
2472 | C<gv_fetchpv>. If C<GV_ADD> is set and the | |
2473 | Perl variable does not exist then it will be created. If C<flags> is zero | |
2474 | and the variable does not exist then NULL is returned. | |
954c1994 GS |
2475 | |
2476 | =cut | |
2477 | */ | |
2478 | ||
6224f72b | 2479 | HV* |
6673a63c | 2480 | Perl_get_hv(pTHX_ const char *name, I32 flags) |
6224f72b | 2481 | { |
6673a63c | 2482 | GV* const gv = gv_fetchpv(name, flags, SVt_PVHV); |
7918f24d NC |
2483 | |
2484 | PERL_ARGS_ASSERT_GET_HV; | |
2485 | ||
6673a63c | 2486 | if (flags) |
a0d0e21e LW |
2487 | return GvHVn(gv); |
2488 | if (gv) | |
2489 | return GvHV(gv); | |
5c284bb0 | 2490 | return NULL; |
a0d0e21e LW |
2491 | } |
2492 | ||
954c1994 | 2493 | /* |
ccfc67b7 JH |
2494 | =head1 CV Manipulation Functions |
2495 | ||
780a5241 NC |
2496 | =for apidoc p||get_cvn_flags |
2497 | ||
2498 | Returns the CV of the specified Perl subroutine. C<flags> are passed to | |
2499 | C<gv_fetchpvn_flags>. If C<GV_ADD> is set and the Perl subroutine does not | |
2500 | exist then it will be declared (which has the same effect as saying | |
2501 | C<sub name;>). If C<GV_ADD> is not set and the subroutine does not exist | |
2502 | then NULL is returned. | |
2503 | ||
954c1994 GS |
2504 | =for apidoc p||get_cv |
2505 | ||
780a5241 | 2506 | Uses C<strlen> to get the length of C<name>, then calls C<get_cvn_flags>. |
954c1994 GS |
2507 | |
2508 | =cut | |
2509 | */ | |
2510 | ||
a0d0e21e | 2511 | CV* |
780a5241 | 2512 | Perl_get_cvn_flags(pTHX_ const char *name, STRLEN len, I32 flags) |
a0d0e21e | 2513 | { |
780a5241 | 2514 | GV* const gv = gv_fetchpvn_flags(name, len, flags, SVt_PVCV); |
f6ec51f7 GS |
2515 | /* XXX this is probably not what they think they're getting. |
2516 | * It has the same effect as "sub name;", i.e. just a forward | |
2517 | * declaration! */ | |
7918f24d NC |
2518 | |
2519 | PERL_ARGS_ASSERT_GET_CVN_FLAGS; | |
2520 | ||
780a5241 | 2521 | if ((flags & ~GV_NOADD_MASK) && !GvCVu(gv)) { |
740cce10 | 2522 | SV *const sv = newSVpvn_flags(name, len, flags & SVf_UTF8); |
774d564b | 2523 | return newSUB(start_subparse(FALSE, 0), |
780a5241 | 2524 | newSVOP(OP_CONST, 0, sv), |
5f66b61c | 2525 | NULL, NULL); |
780a5241 | 2526 | } |
a0d0e21e | 2527 | if (gv) |
8ebc5c01 | 2528 | return GvCVu(gv); |
601f1833 | 2529 | return NULL; |
a0d0e21e LW |
2530 | } |
2531 | ||
2c67934f NC |
2532 | /* Nothing in core calls this now, but we can't replace it with a macro and |
2533 | move it to mathoms.c as a macro would evaluate name twice. */ | |
780a5241 NC |
2534 | CV* |
2535 | Perl_get_cv(pTHX_ const char *name, I32 flags) | |
2536 | { | |
7918f24d NC |
2537 | PERL_ARGS_ASSERT_GET_CV; |
2538 | ||
780a5241 NC |
2539 | return get_cvn_flags(name, strlen(name), flags); |
2540 | } | |
2541 | ||
79072805 LW |
2542 | /* Be sure to refetch the stack pointer after calling these routines. */ |
2543 | ||
954c1994 | 2544 | /* |
ccfc67b7 JH |
2545 | |
2546 | =head1 Callback Functions | |
2547 | ||
954c1994 GS |
2548 | =for apidoc p||call_argv |
2549 | ||
2550 | Performs a callback to the specified Perl sub. See L<perlcall>. | |
2551 | ||
2552 | =cut | |
2553 | */ | |
2554 | ||
a0d0e21e | 2555 | I32 |
8f42b153 | 2556 | Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv) |
ac27b0f5 | 2557 | |
8ac85365 NIS |
2558 | /* See G_* flags in cop.h */ |
2559 | /* null terminated arg list */ | |
8990e307 | 2560 | { |
97aff369 | 2561 | dVAR; |
a0d0e21e | 2562 | dSP; |
8990e307 | 2563 | |
7918f24d NC |
2564 | PERL_ARGS_ASSERT_CALL_ARGV; |
2565 | ||
924508f0 | 2566 | PUSHMARK(SP); |
a0d0e21e | 2567 | if (argv) { |
8990e307 | 2568 | while (*argv) { |
6e449a3a | 2569 | mXPUSHs(newSVpv(*argv,0)); |
8990e307 LW |
2570 | argv++; |
2571 | } | |
a0d0e21e | 2572 | PUTBACK; |
8990e307 | 2573 | } |
864dbfa3 | 2574 | return call_pv(sub_name, flags); |
8990e307 LW |
2575 | } |
2576 | ||
954c1994 GS |
2577 | /* |
2578 | =for apidoc p||call_pv | |
2579 | ||
2580 | Performs a callback to the specified Perl sub. See L<perlcall>. | |
2581 | ||
2582 | =cut | |
2583 | */ | |
2584 | ||
a0d0e21e | 2585 | I32 |
864dbfa3 | 2586 | Perl_call_pv(pTHX_ const char *sub_name, I32 flags) |
8ac85365 NIS |
2587 | /* name of the subroutine */ |
2588 | /* See G_* flags in cop.h */ | |
a0d0e21e | 2589 | { |
7918f24d NC |
2590 | PERL_ARGS_ASSERT_CALL_PV; |
2591 | ||
0da0e728 | 2592 | return call_sv(MUTABLE_SV(get_cv(sub_name, GV_ADD)), flags); |
a0d0e21e LW |
2593 | } |
2594 | ||
954c1994 GS |
2595 | /* |
2596 | =for apidoc p||call_method | |
2597 | ||
2598 | Performs a callback to the specified Perl method. The blessed object must | |
2599 | be on the stack. See L<perlcall>. | |
2600 | ||
2601 | =cut | |
2602 | */ | |
2603 | ||
a0d0e21e | 2604 | I32 |
864dbfa3 | 2605 | Perl_call_method(pTHX_ const char *methname, I32 flags) |
8ac85365 NIS |
2606 | /* name of the subroutine */ |
2607 | /* See G_* flags in cop.h */ | |
a0d0e21e | 2608 | { |
7918f24d NC |
2609 | PERL_ARGS_ASSERT_CALL_METHOD; |
2610 | ||
968b3946 | 2611 | return call_sv(sv_2mortal(newSVpv(methname,0)), flags | G_METHOD); |
a0d0e21e LW |
2612 | } |
2613 | ||
2614 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
954c1994 GS |
2615 | /* |
2616 | =for apidoc p||call_sv | |
2617 | ||
2618 | Performs a callback to the Perl sub whose name is in the SV. See | |
2619 | L<perlcall>. | |
2620 | ||
2621 | =cut | |
2622 | */ | |
2623 | ||
a0d0e21e | 2624 | I32 |
001d637e | 2625 | Perl_call_sv(pTHX_ SV *sv, VOL I32 flags) |
8ac85365 | 2626 | /* See G_* flags in cop.h */ |
a0d0e21e | 2627 | { |
27da23d5 | 2628 | dVAR; dSP; |
a0d0e21e | 2629 | LOGOP myop; /* fake syntax tree node */ |
968b3946 | 2630 | UNOP method_op; |
aa689395 | 2631 | I32 oldmark; |
8ea43dc8 | 2632 | VOL I32 retval = 0; |
a0d0e21e | 2633 | I32 oldscope; |
54310121 | 2634 | bool oldcatch = CATCH_GET; |
6224f72b | 2635 | int ret; |
c4420975 | 2636 | OP* const oldop = PL_op; |
db36c5a1 | 2637 | dJMPENV; |
1e422769 | 2638 | |
7918f24d NC |
2639 | PERL_ARGS_ASSERT_CALL_SV; |
2640 | ||
a0d0e21e LW |
2641 | if (flags & G_DISCARD) { |
2642 | ENTER; | |
2643 | SAVETMPS; | |
2644 | } | |
2f8edad0 NC |
2645 | if (!(flags & G_WANT)) { |
2646 | /* Backwards compatibility - as G_SCALAR was 0, it could be omitted. | |
2647 | */ | |
2648 | flags |= G_SCALAR; | |
2649 | } | |
a0d0e21e | 2650 | |
aa689395 | 2651 | Zero(&myop, 1, LOGOP); |
5f66b61c | 2652 | myop.op_next = NULL; |
f51d4af5 | 2653 | if (!(flags & G_NOARGS)) |
aa689395 | 2654 | myop.op_flags |= OPf_STACKED; |
4f911530 | 2655 | myop.op_flags |= OP_GIMME_REVERSE(flags); |
462e5cf6 | 2656 | SAVEOP(); |
533c011a | 2657 | PL_op = (OP*)&myop; |
aa689395 | 2658 | |
3280af22 NIS |
2659 | EXTEND(PL_stack_sp, 1); |
2660 | *++PL_stack_sp = sv; | |
aa689395 | 2661 | oldmark = TOPMARK; |
3280af22 | 2662 | oldscope = PL_scopestack_ix; |
a0d0e21e | 2663 | |
3280af22 | 2664 | if (PERLDB_SUB && PL_curstash != PL_debstash |
36477c24 | 2665 | /* Handle first BEGIN of -d. */ |
3280af22 | 2666 | && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub))) |
36477c24 | 2667 | /* Try harder, since this may have been a sighandler, thus |
2668 | * curstash may be meaningless. */ | |
ea726b52 | 2669 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((const CV *)sv) != PL_debstash) |
491527d0 | 2670 | && !(flags & G_NODEBUG)) |
533c011a | 2671 | PL_op->op_private |= OPpENTERSUB_DB; |
a0d0e21e | 2672 | |
968b3946 GS |
2673 | if (flags & G_METHOD) { |
2674 | Zero(&method_op, 1, UNOP); | |
2675 | method_op.op_next = PL_op; | |
2676 | method_op.op_ppaddr = PL_ppaddr[OP_METHOD]; | |
377b1098 | 2677 | method_op.op_type = OP_METHOD; |
968b3946 | 2678 | myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB]; |
377b1098 | 2679 | myop.op_type = OP_ENTERSUB; |
f39d0b86 | 2680 | PL_op = (OP*)&method_op; |
968b3946 GS |
2681 | } |
2682 | ||
312caa8e | 2683 | if (!(flags & G_EVAL)) { |
0cdb2077 | 2684 | CATCH_SET(TRUE); |
d6f07c05 | 2685 | CALL_BODY_SUB((OP*)&myop); |
312caa8e | 2686 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
0253cb41 | 2687 | CATCH_SET(oldcatch); |
312caa8e CS |
2688 | } |
2689 | else { | |
d78bda3d | 2690 | myop.op_other = (OP*)&myop; |
3280af22 | 2691 | PL_markstack_ptr--; |
edb2152a | 2692 | create_eval_scope(flags|G_FAKINGEVAL); |
3280af22 | 2693 | PL_markstack_ptr++; |
a0d0e21e | 2694 | |
14dd3ad8 | 2695 | JMPENV_PUSH(ret); |
edb2152a | 2696 | |
6224f72b GS |
2697 | switch (ret) { |
2698 | case 0: | |
14dd3ad8 | 2699 | redo_body: |
d6f07c05 | 2700 | CALL_BODY_SUB((OP*)&myop); |
312caa8e | 2701 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
8433848b | 2702 | if (!(flags & G_KEEPERR)) { |
ab69dbc2 | 2703 | CLEAR_ERRSV(); |
8433848b | 2704 | } |
a0d0e21e | 2705 | break; |
6224f72b | 2706 | case 1: |
f86702cc | 2707 | STATUS_ALL_FAILURE; |
a0d0e21e | 2708 | /* FALL THROUGH */ |
6224f72b | 2709 | case 2: |
a0d0e21e | 2710 | /* my_exit() was called */ |
3280af22 | 2711 | PL_curstash = PL_defstash; |
a0d0e21e | 2712 | FREETMPS; |
14dd3ad8 | 2713 | JMPENV_POP; |
cc3604b1 | 2714 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) |
cea2e8a9 | 2715 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc | 2716 | my_exit_jump(); |
a0d0e21e | 2717 | /* NOTREACHED */ |
6224f72b | 2718 | case 3: |
3280af22 | 2719 | if (PL_restartop) { |
533c011a | 2720 | PL_op = PL_restartop; |
3280af22 | 2721 | PL_restartop = 0; |
312caa8e | 2722 | goto redo_body; |
a0d0e21e | 2723 | } |
3280af22 | 2724 | PL_stack_sp = PL_stack_base + oldmark; |
51ce5529 | 2725 | if ((flags & G_WANT) == G_ARRAY) |
a0d0e21e LW |
2726 | retval = 0; |
2727 | else { | |
2728 | retval = 1; | |
3280af22 | 2729 | *++PL_stack_sp = &PL_sv_undef; |
a0d0e21e | 2730 | } |
312caa8e | 2731 | break; |
a0d0e21e | 2732 | } |
a0d0e21e | 2733 | |
edb2152a NC |
2734 | if (PL_scopestack_ix > oldscope) |
2735 | delete_eval_scope(); | |
14dd3ad8 | 2736 | JMPENV_POP; |
a0d0e21e | 2737 | } |
1e422769 | 2738 | |
a0d0e21e | 2739 | if (flags & G_DISCARD) { |
3280af22 | 2740 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
2741 | retval = 0; |
2742 | FREETMPS; | |
2743 | LEAVE; | |
2744 | } | |
533c011a | 2745 | PL_op = oldop; |
a0d0e21e LW |
2746 | return retval; |
2747 | } | |
2748 | ||
6e72f9df | 2749 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 | 2750 | |
954c1994 GS |
2751 | /* |
2752 | =for apidoc p||eval_sv | |
2753 | ||
2754 | Tells Perl to C<eval> the string in the SV. | |
2755 | ||
2756 | =cut | |
2757 | */ | |
2758 | ||
a0d0e21e | 2759 | I32 |
864dbfa3 | 2760 | Perl_eval_sv(pTHX_ SV *sv, I32 flags) |
ac27b0f5 | 2761 | |
8ac85365 | 2762 | /* See G_* flags in cop.h */ |
a0d0e21e | 2763 | { |
97aff369 | 2764 | dVAR; |
924508f0 | 2765 | dSP; |
a0d0e21e | 2766 | UNOP myop; /* fake syntax tree node */ |
8ea43dc8 SP |
2767 | VOL I32 oldmark = SP - PL_stack_base; |
2768 | VOL I32 retval = 0; | |
6224f72b | 2769 | int ret; |
c4420975 | 2770 | OP* const oldop = PL_op; |
db36c5a1 | 2771 | dJMPENV; |
84902520 | 2772 | |
7918f24d NC |
2773 | PERL_ARGS_ASSERT_EVAL_SV; |
2774 | ||
4633a7c4 LW |
2775 | if (flags & G_DISCARD) { |
2776 | ENTER; | |
2777 | SAVETMPS; | |
2778 | } | |
2779 | ||
462e5cf6 | 2780 | SAVEOP(); |
533c011a NIS |
2781 | PL_op = (OP*)&myop; |
2782 | Zero(PL_op, 1, UNOP); | |
3280af22 NIS |
2783 | EXTEND(PL_stack_sp, 1); |
2784 | *++PL_stack_sp = sv; | |
79072805 | 2785 | |
4633a7c4 LW |
2786 | if (!(flags & G_NOARGS)) |
2787 | myop.op_flags = OPf_STACKED; | |
5f66b61c | 2788 | myop.op_next = NULL; |
6e72f9df | 2789 | myop.op_type = OP_ENTEREVAL; |
4f911530 | 2790 | myop.op_flags |= OP_GIMME_REVERSE(flags); |
6e72f9df | 2791 | if (flags & G_KEEPERR) |
2792 | myop.op_flags |= OPf_SPECIAL; | |
4633a7c4 | 2793 | |
dedbcade DM |
2794 | /* fail now; otherwise we could fail after the JMPENV_PUSH but |
2795 | * before a PUSHEVAL, which corrupts the stack after a croak */ | |
2796 | TAINT_PROPER("eval_sv()"); | |
2797 | ||
14dd3ad8 | 2798 | JMPENV_PUSH(ret); |
6224f72b GS |
2799 | switch (ret) { |
2800 | case 0: | |
14dd3ad8 | 2801 | redo_body: |
d6f07c05 | 2802 | CALL_BODY_EVAL((OP*)&myop); |
312caa8e | 2803 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
8433848b | 2804 | if (!(flags & G_KEEPERR)) { |
ab69dbc2 | 2805 | CLEAR_ERRSV(); |
8433848b | 2806 | } |
4633a7c4 | 2807 | break; |
6224f72b | 2808 | case 1: |
f86702cc | 2809 | STATUS_ALL_FAILURE; |
4633a7c4 | 2810 | /* FALL THROUGH */ |
6224f72b | 2811 | case 2: |
4633a7c4 | 2812 | /* my_exit() was called */ |
3280af22 | 2813 | PL_curstash = PL_defstash; |
4633a7c4 | 2814 | FREETMPS; |
14dd3ad8 | 2815 | JMPENV_POP; |
cc3604b1 | 2816 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) |
cea2e8a9 | 2817 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc | 2818 | my_exit_jump(); |
4633a7c4 | 2819 | /* NOTREACHED */ |
6224f72b | 2820 | case 3: |
3280af22 | 2821 | if (PL_restartop) { |
533c011a | 2822 | PL_op = PL_restartop; |
3280af22 | 2823 | PL_restartop = 0; |
312caa8e | 2824 | goto redo_body; |
4633a7c4 | 2825 | } |
3280af22 | 2826 | PL_stack_sp = PL_stack_base + oldmark; |
51ce5529 | 2827 | if ((flags & G_WANT) == G_ARRAY) |
4633a7c4 LW |
2828 | retval = 0; |
2829 | else { | |
2830 | retval = 1; | |
3280af22 | 2831 | *++PL_stack_sp = &PL_sv_undef; |
4633a7c4 | 2832 | } |
312caa8e | 2833 | break; |
4633a7c4 LW |
2834 | } |
2835 | ||
14dd3ad8 | 2836 | JMPENV_POP; |
4633a7c4 | 2837 | if (flags & G_DISCARD) { |
3280af22 | 2838 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
2839 | retval = 0; |
2840 | FREETMPS; | |
2841 | LEAVE; | |
2842 | } | |
533c011a | 2843 | PL_op = oldop; |
4633a7c4 LW |
2844 | return retval; |
2845 | } | |
2846 | ||
954c1994 GS |
2847 | /* |
2848 | =for apidoc p||eval_pv | |
2849 | ||
2850 | Tells Perl to C<eval> the given string and return an SV* result. | |
2851 | ||
2852 | =cut | |
2853 | */ | |
2854 | ||
137443ea | 2855 | SV* |
864dbfa3 | 2856 | Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error) |
137443ea | 2857 | { |
97aff369 | 2858 | dVAR; |
137443ea | 2859 | dSP; |
2860 | SV* sv = newSVpv(p, 0); | |
2861 | ||
7918f24d NC |
2862 | PERL_ARGS_ASSERT_EVAL_PV; |
2863 | ||
864dbfa3 | 2864 | eval_sv(sv, G_SCALAR); |
137443ea | 2865 | SvREFCNT_dec(sv); |
2866 | ||
2867 | SPAGAIN; | |
2868 | sv = POPs; | |
2869 | PUTBACK; | |
2870 | ||
2d8e6c8d | 2871 | if (croak_on_error && SvTRUE(ERRSV)) { |
f1f66076 | 2872 | Perl_croak(aTHX_ "%s", SvPVx_nolen_const(ERRSV)); |
2d8e6c8d | 2873 | } |
137443ea | 2874 | |
2875 | return sv; | |
2876 | } | |
2877 | ||
4633a7c4 LW |
2878 | /* Require a module. */ |
2879 | ||
954c1994 | 2880 | /* |
ccfc67b7 JH |
2881 | =head1 Embedding Functions |
2882 | ||
954c1994 GS |
2883 | =for apidoc p||require_pv |
2884 | ||
7d3fb230 BS |
2885 | Tells Perl to C<require> the file named by the string argument. It is |
2886 | analogous to the Perl code C<eval "require '$file'">. It's even | |
2307c6d0 | 2887 | implemented that way; consider using load_module instead. |
954c1994 | 2888 | |
7d3fb230 | 2889 | =cut */ |
954c1994 | 2890 | |
4633a7c4 | 2891 | void |
864dbfa3 | 2892 | Perl_require_pv(pTHX_ const char *pv) |
4633a7c4 | 2893 | { |
97aff369 | 2894 | dVAR; |
d3acc0f7 | 2895 | dSP; |
97aff369 | 2896 | SV* sv; |
7918f24d NC |
2897 | |
2898 | PERL_ARGS_ASSERT_REQUIRE_PV; | |
2899 | ||
e788e7d3 | 2900 | PUSHSTACKi(PERLSI_REQUIRE); |
d3acc0f7 | 2901 | PUTBACK; |
be41e5d9 NC |
2902 | sv = Perl_newSVpvf(aTHX_ "require q%c%s%c", 0, pv, 0); |
2903 | eval_sv(sv_2mortal(sv), G_DISCARD); | |
d3acc0f7 JP |
2904 | SPAGAIN; |
2905 | POPSTACK; | |
79072805 LW |
2906 | } |
2907 | ||
76e3520e | 2908 | STATIC void |
e1ec3a88 | 2909 | S_usage(pTHX_ const char *name) /* XXX move this out into a module ? */ |
4633a7c4 | 2910 | { |
ab821d7f | 2911 | /* This message really ought to be max 23 lines. |
75c72d73 | 2912 | * Removed -h because the user already knows that option. Others? */ |
fb73857a | 2913 | |
27da23d5 | 2914 | static const char * const usage_msg[] = { |
aefc56c5 | 2915 | "-0[octal] specify record separator (\\0, if no argument)", |
aefc56c5 SF |
2916 | "-a autosplit mode with -n or -p (splits $_ into @F)", |
2917 | "-C[number/list] enables the listed Unicode features", | |
2918 | "-c check syntax only (runs BEGIN and CHECK blocks)", | |
2919 | "-d[:debugger] run program under debugger", | |
2920 | "-D[number/list] set debugging flags (argument is a bit mask or alphabets)", | |
2921 | "-e program one line of program (several -e's allowed, omit programfile)", | |
bc9b29db | 2922 | "-E program like -e, but enables all optional features", |
aefc56c5 | 2923 | "-f don't do $sitelib/sitecustomize.pl at startup", |
aefc56c5 SF |
2924 | "-F/pattern/ split() pattern for -a switch (//'s are optional)", |
2925 | "-i[extension] edit <> files in place (makes backup if extension supplied)", | |
2926 | "-Idirectory specify @INC/#include directory (several -I's allowed)", | |
2927 | "-l[octal] enable line ending processing, specifies line terminator", | |
2928 | "-[mM][-]module execute \"use/no module...\" before executing program", | |
2929 | "-n assume \"while (<>) { ... }\" loop around program", | |
2930 | "-p assume loop like -n but print line also, like sed", | |
aefc56c5 SF |
2931 | "-s enable rudimentary parsing for switches after programfile", |
2932 | "-S look for programfile using PATH environment variable", | |
2933 | "-t enable tainting warnings", | |
2934 | "-T enable tainting checks", | |
2935 | "-u dump core after parsing program", | |
2936 | "-U allow unsafe operations", | |
2937 | "-v print version, subversion (includes VERY IMPORTANT perl info)", | |
2938 | "-V[:variable] print configuration summary (or a single Config.pm variable)", | |
2939 | "-w enable many useful warnings (RECOMMENDED)", | |
2940 | "-W enable all warnings", | |
2941 | "-x[directory] strip off text before #!perl line and perhaps cd to directory", | |
2942 | "-X disable all warnings", | |
fb73857a | 2943 | "\n", |
2944 | NULL | |
2945 | }; | |
27da23d5 | 2946 | const char * const *p = usage_msg; |
fb73857a | 2947 | |
7918f24d NC |
2948 | PERL_ARGS_ASSERT_USAGE; |
2949 | ||
b0e47665 GS |
2950 | PerlIO_printf(PerlIO_stdout(), |
2951 | "\nUsage: %s [switches] [--] [programfile] [arguments]", | |
2952 | name); | |
fb73857a | 2953 | while (*p) |
b0e47665 | 2954 | PerlIO_printf(PerlIO_stdout(), "\n %s", *p++); |
4633a7c4 LW |
2955 | } |
2956 | ||
b4ab917c DM |
2957 | /* convert a string of -D options (or digits) into an int. |
2958 | * sets *s to point to the char after the options */ | |
2959 | ||
2960 | #ifdef DEBUGGING | |
2961 | int | |
e1ec3a88 | 2962 | Perl_get_debug_opts(pTHX_ const char **s, bool givehelp) |
b4ab917c | 2963 | { |
27da23d5 | 2964 | static const char * const usage_msgd[] = { |
e6e64d9b JC |
2965 | " Debugging flag values: (see also -d)", |
2966 | " p Tokenizing and parsing (with v, displays parse stack)", | |
3679267a | 2967 | " s Stack snapshots (with v, displays all stacks)", |
e6e64d9b JC |
2968 | " l Context (loop) stack processing", |
2969 | " t Trace execution", | |
2970 | " o Method and overloading resolution", | |
2971 | " c String/numeric conversions", | |
4c84d7f2 | 2972 | " P Print profiling info, source file input state", |
d7a2c63c | 2973 | " m Memory and SV allocation", |
e6e64d9b JC |
2974 | " f Format processing", |
2975 | " r Regular expression parsing and execution", | |
2976 | " x Syntax tree dump", | |
3679267a | 2977 | " u Tainting checks", |
e6e64d9b JC |
2978 | " H Hash dump -- usurps values()", |
2979 | " X Scratchpad allocation", | |
2980 | " D Cleaning up", | |
e6e64d9b JC |
2981 | " T Tokenising", |
2982 | " R Include reference counts of dumped variables (eg when using -Ds)", | |
2983 | " J Do not s,t,P-debug (Jump over) opcodes within package DB", | |
2984 | " v Verbose: use in conjunction with other flags", | |
2985 | " C Copy On Write", | |
2986 | " A Consistency checks on internal structures", | |
3679267a | 2987 | " q quiet - currently only suppresses the 'EXECUTING' message", |
e6e64d9b JC |
2988 | NULL |
2989 | }; | |
b4ab917c | 2990 | int i = 0; |
7918f24d NC |
2991 | |
2992 | PERL_ARGS_ASSERT_GET_DEBUG_OPTS; | |
2993 | ||
b4ab917c DM |
2994 | if (isALPHA(**s)) { |
2995 | /* if adding extra options, remember to update DEBUG_MASK */ | |
88d2d28a | 2996 | static const char debopts[] = "psltocPmfrxuUHXDSTRJvCAq"; |
b4ab917c DM |
2997 | |
2998 | for (; isALNUM(**s); (*s)++) { | |
c4420975 | 2999 | const char * const d = strchr(debopts,**s); |
b4ab917c DM |
3000 | if (d) |
3001 | i |= 1 << (d - debopts); | |
3002 | else if (ckWARN_d(WARN_DEBUGGING)) | |
e6e64d9b JC |
3003 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
3004 | "invalid option -D%c, use -D'' to see choices\n", **s); | |
b4ab917c DM |
3005 | } |
3006 | } | |
e6e64d9b | 3007 | else if (isDIGIT(**s)) { |
b4ab917c DM |
3008 | i = atoi(*s); |
3009 | for (; isALNUM(**s); (*s)++) ; | |
3010 | } | |
ddcf8bc1 | 3011 | else if (givehelp) { |
06e869a4 | 3012 | const char *const *p = usage_msgd; |
e6e64d9b JC |
3013 | while (*p) PerlIO_printf(PerlIO_stdout(), "%s\n", *p++); |
3014 | } | |
b4ab917c DM |
3015 | # ifdef EBCDIC |
3016 | if ((i & DEBUG_p_FLAG) && ckWARN_d(WARN_DEBUGGING)) | |
3017 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), | |
3018 | "-Dp not implemented on this platform\n"); | |
3019 | # endif | |
3020 | return i; | |
3021 | } | |
3022 | #endif | |
3023 | ||
79072805 LW |
3024 | /* This routine handles any switches that can be given during run */ |
3025 | ||
c7030b81 NC |
3026 | const char * |
3027 | Perl_moreswitches(pTHX_ const char *s) | |
79072805 | 3028 | { |
27da23d5 | 3029 | dVAR; |
84c133a0 | 3030 | UV rschar; |
0544e6df | 3031 | const char option = *s; /* used to remember option in -m/-M code */ |
79072805 | 3032 | |
7918f24d NC |
3033 | PERL_ARGS_ASSERT_MORESWITCHES; |
3034 | ||
79072805 LW |
3035 | switch (*s) { |
3036 | case '0': | |
a863c7d1 | 3037 | { |
f2095865 | 3038 | I32 flags = 0; |
a3b680e6 | 3039 | STRLEN numlen; |
f2095865 JH |
3040 | |
3041 | SvREFCNT_dec(PL_rs); | |
3042 | if (s[1] == 'x' && s[2]) { | |
a3b680e6 | 3043 | const char *e = s+=2; |
f2095865 JH |
3044 | U8 *tmps; |
3045 | ||
a3b680e6 AL |
3046 | while (*e) |
3047 | e++; | |
f2095865 JH |
3048 | numlen = e - s; |
3049 | flags = PERL_SCAN_SILENT_ILLDIGIT; | |
3050 | rschar = (U32)grok_hex(s, &numlen, &flags, NULL); | |
3051 | if (s + numlen < e) { | |
3052 | rschar = 0; /* Grandfather -0xFOO as -0 -xFOO. */ | |
3053 | numlen = 0; | |
3054 | s--; | |
3055 | } | |
396482e1 | 3056 | PL_rs = newSVpvs(""); |
c5661c80 | 3057 | SvGROW(PL_rs, (STRLEN)(UNISKIP(rschar) + 1)); |
f2095865 JH |
3058 | tmps = (U8*)SvPVX(PL_rs); |
3059 | uvchr_to_utf8(tmps, rschar); | |
3060 | SvCUR_set(PL_rs, UNISKIP(rschar)); | |
3061 | SvUTF8_on(PL_rs); | |
3062 | } | |
3063 | else { | |
3064 | numlen = 4; | |
3065 | rschar = (U32)grok_oct(s, &numlen, &flags, NULL); | |
3066 | if (rschar & ~((U8)~0)) | |
3067 | PL_rs = &PL_sv_undef; | |
3068 | else if (!rschar && numlen >= 2) | |
396482e1 | 3069 | PL_rs = newSVpvs(""); |
f2095865 JH |
3070 | else { |
3071 | char ch = (char)rschar; | |
3072 | PL_rs = newSVpvn(&ch, 1); | |
3073 | } | |
3074 | } | |
64ace3f8 | 3075 | sv_setsv(get_sv("/", GV_ADD), PL_rs); |
f2095865 | 3076 | return s + numlen; |
a863c7d1 | 3077 | } |
46487f74 | 3078 | case 'C': |
a05d7ebb | 3079 | s++; |
dd374669 | 3080 | PL_unicode = parse_unicode_opts( (const char **)&s ); |
5a22a2bb NC |
3081 | if (PL_unicode & PERL_UNICODE_UTF8CACHEASSERT_FLAG) |
3082 | PL_utf8cache = -1; | |
46487f74 | 3083 | return s; |
2304df62 | 3084 | case 'F': |
3280af22 | 3085 | PL_minus_F = TRUE; |
ebce5377 RGS |
3086 | PL_splitstr = ++s; |
3087 | while (*s && !isSPACE(*s)) ++s; | |
e49e380e | 3088 | PL_splitstr = savepvn(PL_splitstr, s - PL_splitstr); |
2304df62 | 3089 | return s; |
79072805 | 3090 | case 'a': |
3280af22 | 3091 | PL_minus_a = TRUE; |
79072805 LW |
3092 | s++; |
3093 | return s; | |
3094 | case 'c': | |
3280af22 | 3095 | PL_minus_c = TRUE; |
79072805 LW |
3096 | s++; |
3097 | return s; | |
3098 | case 'd': | |
f20b2998 | 3099 | forbid_setid('d', FALSE); |
4633a7c4 | 3100 | s++; |
2cbb2ee1 RGS |
3101 | |
3102 | /* -dt indicates to the debugger that threads will be used */ | |
3103 | if (*s == 't' && !isALNUM(s[1])) { | |
3104 | ++s; | |
3105 | my_setenv("PERL5DB_THREADED", "1"); | |
3106 | } | |
3107 | ||
70c94a19 RR |
3108 | /* The following permits -d:Mod to accepts arguments following an = |
3109 | in the fashion that -MSome::Mod does. */ | |
3110 | if (*s == ':' || *s == '=') { | |
f85893a1 NC |
3111 | const char *start = ++s; |
3112 | const char *const end = s + strlen(s); | |
396482e1 | 3113 | SV * const sv = newSVpvs("use Devel::"); |
f85893a1 | 3114 | |
70c94a19 RR |
3115 | /* We now allow -d:Module=Foo,Bar */ |
3116 | while(isALNUM(*s) || *s==':') ++s; | |
3117 | if (*s != '=') | |
f85893a1 | 3118 | sv_catpvn(sv, start, end - start); |
70c94a19 RR |
3119 | else { |
3120 | sv_catpvn(sv, start, s-start); | |
95a2b409 RGS |
3121 | /* Don't use NUL as q// delimiter here, this string goes in the |
3122 | * environment. */ | |
3123 | Perl_sv_catpvf(aTHX_ sv, " split(/,/,q{%s});", ++s); | |
70c94a19 | 3124 | } |
f85893a1 | 3125 | s = end; |
184f32ec | 3126 | my_setenv("PERL5DB", SvPV_nolen_const(sv)); |
c4db126b | 3127 | SvREFCNT_dec(sv); |
4633a7c4 | 3128 | } |
ed094faf | 3129 | if (!PL_perldb) { |
3280af22 | 3130 | PL_perldb = PERLDB_ALL; |
a0d0e21e | 3131 | init_debugger(); |
ed094faf | 3132 | } |
79072805 LW |
3133 | return s; |
3134 | case 'D': | |
0453d815 | 3135 | { |
79072805 | 3136 | #ifdef DEBUGGING |
f20b2998 | 3137 | forbid_setid('D', FALSE); |
b4ab917c | 3138 | s++; |
dd374669 | 3139 | PL_debug = get_debug_opts( (const char **)&s, 1) | DEBUG_TOP_FLAG; |
12a43e32 | 3140 | #else /* !DEBUGGING */ |
0453d815 | 3141 | if (ckWARN_d(WARN_DEBUGGING)) |
9014280d | 3142 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
e6e64d9b | 3143 | "Recompile perl with -DDEBUGGING to use -D switch (did you mean -d ?)\n"); |
a0d0e21e | 3144 | for (s++; isALNUM(*s); s++) ; |
79072805 | 3145 | #endif |
79072805 | 3146 | return s; |
0453d815 | 3147 | } |
4633a7c4 | 3148 | case 'h': |
ac27b0f5 | 3149 | usage(PL_origargv[0]); |
7ca617d0 | 3150 | my_exit(0); |
79072805 | 3151 | case 'i': |
43c5f42d | 3152 | Safefree(PL_inplace); |
c030f24b GH |
3153 | #if defined(__CYGWIN__) /* do backup extension automagically */ |
3154 | if (*(s+1) == '\0') { | |
c86a4f2e | 3155 | PL_inplace = savepvs(".bak"); |
c030f24b GH |
3156 | return s+1; |
3157 | } | |
3158 | #endif /* __CYGWIN__ */ | |
5ef5d758 | 3159 | { |
d4c19fe8 | 3160 | const char * const start = ++s; |
5ef5d758 NC |
3161 | while (*s && !isSPACE(*s)) |
3162 | ++s; | |
3163 | ||
3164 | PL_inplace = savepvn(start, s - start); | |
3165 | } | |
7b8d334a | 3166 | if (*s) { |
5ef5d758 | 3167 | ++s; |
7b8d334a | 3168 | if (*s == '-') /* Additional switches on #! line. */ |
5ef5d758 | 3169 | s++; |
7b8d334a | 3170 | } |
fb73857a | 3171 | return s; |
4e49a025 | 3172 | case 'I': /* -I handled both here and in parse_body() */ |
f20b2998 | 3173 | forbid_setid('I', FALSE); |
fb73857a | 3174 | ++s; |
3175 | while (*s && isSPACE(*s)) | |
3176 | ++s; | |
3177 | if (*s) { | |
c7030b81 | 3178 | const char *e, *p; |
0df16ed7 GS |
3179 | p = s; |
3180 | /* ignore trailing spaces (possibly followed by other switches) */ | |
3181 | do { | |
3182 | for (e = p; *e && !isSPACE(*e); e++) ; | |
3183 | p = e; | |
3184 | while (isSPACE(*p)) | |
3185 | p++; | |
3186 | } while (*p && *p != '-'); | |
3187 | e = savepvn(s, e-s); | |
20189146 | 3188 | incpush(e, TRUE, TRUE, FALSE, FALSE, TRUE); |
0df16ed7 GS |
3189 | Safefree(e); |
3190 | s = p; | |
3191 | if (*s == '-') | |
3192 | s++; | |
79072805 LW |
3193 | } |
3194 | else | |
a67e862a | 3195 | Perl_croak(aTHX_ "No directory specified for -I"); |
fb73857a | 3196 | return s; |
79072805 | 3197 | case 'l': |
3280af22 | 3198 | PL_minus_l = TRUE; |
79072805 | 3199 | s++; |
7889fe52 NIS |
3200 | if (PL_ors_sv) { |
3201 | SvREFCNT_dec(PL_ors_sv); | |
a0714e2c | 3202 | PL_ors_sv = NULL; |
7889fe52 | 3203 | } |
79072805 | 3204 | if (isDIGIT(*s)) { |
53305cf1 | 3205 | I32 flags = 0; |
a3b680e6 | 3206 | STRLEN numlen; |
396482e1 | 3207 | PL_ors_sv = newSVpvs("\n"); |
53305cf1 NC |
3208 | numlen = 3 + (*s == '0'); |
3209 | *SvPVX(PL_ors_sv) = (char)grok_oct(s, &numlen, &flags, NULL); | |
79072805 LW |
3210 | s += numlen; |
3211 | } | |
3212 | else { | |
8bfdd7d9 | 3213 | if (RsPARA(PL_rs)) { |
396482e1 | 3214 | PL_ors_sv = newSVpvs("\n\n"); |
7889fe52 NIS |
3215 | } |
3216 | else { | |
8bfdd7d9 | 3217 | PL_ors_sv = newSVsv(PL_rs); |
c07a80fd | 3218 | } |
79072805 LW |
3219 | } |
3220 | return s; | |
1a30305b | 3221 | case 'M': |
f20b2998 | 3222 | forbid_setid('M', FALSE); /* XXX ? */ |
1a30305b | 3223 | /* FALL THROUGH */ |
3224 | case 'm': | |
f20b2998 | 3225 | forbid_setid('m', FALSE); /* XXX ? */ |
1a30305b | 3226 | if (*++s) { |
c7030b81 | 3227 | const char *start; |
b64cb68c | 3228 | const char *end; |
11343788 | 3229 | SV *sv; |
e1ec3a88 | 3230 | const char *use = "use "; |
0544e6df | 3231 | bool colon = FALSE; |
a5f75d66 | 3232 | /* -M-foo == 'no foo' */ |
d0043bd1 NC |
3233 | /* Leading space on " no " is deliberate, to make both |
3234 | possibilities the same length. */ | |
3235 | if (*s == '-') { use = " no "; ++s; } | |
3236 | sv = newSVpvn(use,4); | |
a5f75d66 | 3237 | start = s; |
1a30305b | 3238 | /* We allow -M'Module qw(Foo Bar)' */ |
0544e6df RB |
3239 | while(isALNUM(*s) || *s==':') { |
3240 | if( *s++ == ':' ) { | |
3241 | if( *s == ':' ) | |
3242 | s++; | |
3243 | else | |
3244 | colon = TRUE; | |
3245 | } | |
3246 | } | |
3247 | if (s == start) | |
3248 | Perl_croak(aTHX_ "Module name required with -%c option", | |
3249 | option); | |
3250 | if (colon) | |
3251 | Perl_croak(aTHX_ "Invalid module name %.*s with -%c option: " | |
3252 | "contains single ':'", | |
63da6837 | 3253 | (int)(s - start), start, option); |
b64cb68c | 3254 | end = s + strlen(s); |
c07a80fd | 3255 | if (*s != '=') { |
b64cb68c | 3256 | sv_catpvn(sv, start, end - start); |
0544e6df | 3257 | if (option == 'm') { |
c07a80fd | 3258 | if (*s != '\0') |
cea2e8a9 | 3259 | Perl_croak(aTHX_ "Can't use '%c' after -mname", *s); |
396482e1 | 3260 | sv_catpvs( sv, " ()"); |
c07a80fd | 3261 | } |
3262 | } else { | |
11343788 | 3263 | sv_catpvn(sv, start, s-start); |
b64cb68c NC |
3264 | /* Use NUL as q''-delimiter. */ |
3265 | sv_catpvs(sv, " split(/,/,q\0"); | |
3266 | ++s; | |
3267 | sv_catpvn(sv, s, end - s); | |
396482e1 | 3268 | sv_catpvs(sv, "\0)"); |
c07a80fd | 3269 | } |
b64cb68c | 3270 | s = end; |
29a861e7 | 3271 | Perl_av_create_and_push(aTHX_ &PL_preambleav, sv); |
1a30305b | 3272 | } |
3273 | else | |
0544e6df | 3274 | Perl_croak(aTHX_ "Missing argument to -%c", option); |
1a30305b | 3275 | return s; |
79072805 | 3276 | case 'n': |
3280af22 | 3277 | PL_minus_n = TRUE; |
79072805 LW |
3278 | s++; |
3279 | return s; | |
3280 | case 'p': | |
3280af22 | 3281 | PL_minus_p = TRUE; |
79072805 LW |
3282 | s++; |
3283 | return s; | |
3284 | case 's': | |
f20b2998 | 3285 | forbid_setid('s', FALSE); |
3280af22 | 3286 | PL_doswitches = TRUE; |
79072805 LW |
3287 | s++; |
3288 | return s; | |
6537fe72 MS |
3289 | case 't': |
3290 | if (!PL_tainting) | |
22f7c9c9 | 3291 | TOO_LATE_FOR('t'); |
6537fe72 MS |
3292 | s++; |
3293 | return s; | |
463ee0b2 | 3294 | case 'T': |
3280af22 | 3295 | if (!PL_tainting) |
22f7c9c9 | 3296 | TOO_LATE_FOR('T'); |
463ee0b2 LW |
3297 | s++; |
3298 | return s; | |
79072805 | 3299 | case 'u': |
bf4acbe4 GS |
3300 | #ifdef MACOS_TRADITIONAL |
3301 | Perl_croak(aTHX_ "Believe me, you don't want to use \"-u\" on a Macintosh"); | |
3302 | #endif | |
3280af22 | 3303 | PL_do_undump = TRUE; |
79072805 LW |
3304 | s++; |
3305 | return s; | |
3306 | case 'U': | |
3280af22 | 3307 | PL_unsafe = TRUE; |
79072805 LW |
3308 | s++; |
3309 | return s; | |
3310 | case 'v': | |
d7aa5382 | 3311 | if (!sv_derived_from(PL_patchlevel, "version")) |
ac0e6a2f | 3312 | upg_version(PL_patchlevel, TRUE); |
8e9464f1 | 3313 | #if !defined(DGUX) |
46807d8e YO |
3314 | { |
3315 | SV* level= vstringify(PL_patchlevel); | |
3316 | #ifdef PERL_PATCHNUM | |
a49f3ea3 | 3317 | SV* num= newSVpvn(PERL_PATCHNUM,sizeof(PERL_PATCHNUM)-1); |
46807d8e | 3318 | #ifdef PERL_GIT_UNCOMMITTED_CHANGES |
d0a9311f | 3319 | sv_catpvs(num, "*"); |
46807d8e YO |
3320 | #endif |
3321 | ||
3322 | if (sv_len(num)>=sv_len(level) && strnEQ(SvPV_nolen(num),SvPV_nolen(level),sv_len(level))) { | |
3323 | SvREFCNT_dec(level); | |
3324 | level= num; | |
3325 | } else { | |
d0a9311f | 3326 | Perl_sv_catpvf(aTHX_ level, " (%"SVf")", num); |
46807d8e YO |
3327 | SvREFCNT_dec(num); |
3328 | } | |
3329 | #endif | |
3330 | PerlIO_printf(PerlIO_stdout(), | |
f1f66076 | 3331 | "\nThis is perl, %"SVf |
f1f66076 | 3332 | " built for %s", |
46807d8e | 3333 | level, |
f1f66076 | 3334 | ARCHNAME); |
46807d8e YO |
3335 | SvREFCNT_dec(level); |
3336 | } | |
8e9464f1 JH |
3337 | #else /* DGUX */ |
3338 | /* Adjust verbose output as in the perl that ships with the DG/UX OS from EMC */ | |
3339 | PerlIO_printf(PerlIO_stdout(), | |
52ea0aec | 3340 | Perl_form(aTHX_ "\nThis is perl, %"SVf"\n", |
be2597df | 3341 | SVfARG(vstringify(PL_patchlevel)))); |
8e9464f1 JH |
3342 | PerlIO_printf(PerlIO_stdout(), |
3343 | Perl_form(aTHX_ " built under %s at %s %s\n", | |
3344 | OSNAME, __DATE__, __TIME__)); | |
3345 | PerlIO_printf(PerlIO_stdout(), | |
3346 | Perl_form(aTHX_ " OS Specific Release: %s\n", | |
40a39f85 | 3347 | OSVERS)); |
8e9464f1 | 3348 | #endif /* !DGUX */ |
fb73857a | 3349 | #if defined(LOCAL_PATCH_COUNT) |
3350 | if (LOCAL_PATCH_COUNT > 0) | |
b0e47665 GS |
3351 | PerlIO_printf(PerlIO_stdout(), |
3352 | "\n(with %d registered patch%s, " | |
3353 | "see perl -V for more detail)", | |
bb7a0f54 | 3354 | LOCAL_PATCH_COUNT, |
b0e47665 | 3355 | (LOCAL_PATCH_COUNT!=1) ? "es" : ""); |
a5f75d66 | 3356 | #endif |
1a30305b | 3357 | |
b0e47665 | 3358 | PerlIO_printf(PerlIO_stdout(), |
737f4459 | 3359 | "\n\nCopyright 1987-2009, Larry Wall\n"); |
eae9c151 JH |
3360 | #ifdef MACOS_TRADITIONAL |
3361 | PerlIO_printf(PerlIO_stdout(), | |
be3c0a43 | 3362 | "\nMac OS port Copyright 1991-2002, Matthias Neeracher;\n" |
03765510 | 3363 | "maintained by Chris Nandor\n"); |
eae9c151 | 3364 | #endif |
79072805 | 3365 | #ifdef MSDOS |
b0e47665 GS |
3366 | PerlIO_printf(PerlIO_stdout(), |
3367 | "\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); | |
55497cff | 3368 | #endif |
3369 | #ifdef DJGPP | |
b0e47665 GS |
3370 | PerlIO_printf(PerlIO_stdout(), |
3371 | "djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n" | |
3372 | "djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n"); | |
4633a7c4 | 3373 | #endif |
79072805 | 3374 | #ifdef OS2 |
b0e47665 GS |
3375 | PerlIO_printf(PerlIO_stdout(), |
3376 | "\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" | |
be3c0a43 | 3377 | "Version 5 port Copyright (c) 1994-2002, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 | 3378 | #endif |
79072805 | 3379 | #ifdef atarist |
b0e47665 GS |
3380 | PerlIO_printf(PerlIO_stdout(), |
3381 | "atariST series port, ++jrb bammi@cadence.com\n"); | |
79072805 | 3382 | #endif |
a3f9223b | 3383 | #ifdef __BEOS__ |
b0e47665 GS |
3384 | PerlIO_printf(PerlIO_stdout(), |
3385 | "BeOS port Copyright Tom Spindler, 1997-1999\n"); | |
a3f9223b | 3386 | #endif |
1d84e8df | 3387 | #ifdef MPE |
b0e47665 | 3388 | PerlIO_printf(PerlIO_stdout(), |
e583a879 | 3389 | "MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-2003\n"); |
1d84e8df | 3390 | #endif |
9d116dd7 | 3391 | #ifdef OEMVS |
b0e47665 GS |
3392 | PerlIO_printf(PerlIO_stdout(), |
3393 | "MVS (OS390) port by Mortice Kern Systems, 1997-1999\n"); | |
9d116dd7 | 3394 | #endif |
495c5fdc | 3395 | #ifdef __VOS__ |
b0e47665 | 3396 | PerlIO_printf(PerlIO_stdout(), |
94efb9fb | 3397 | "Stratus VOS port by Paul.Green@stratus.com, 1997-2002\n"); |
495c5fdc | 3398 | #endif |
092bebab | 3399 | #ifdef __OPEN_VM |
b0e47665 GS |
3400 | PerlIO_printf(PerlIO_stdout(), |
3401 | "VM/ESA port by Neale Ferguson, 1998-1999\n"); | |
092bebab | 3402 | #endif |
a1a0e61e | 3403 | #ifdef POSIX_BC |
b0e47665 GS |
3404 | PerlIO_printf(PerlIO_stdout(), |
3405 | "BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n"); | |
a1a0e61e | 3406 | #endif |
61ae2fbf | 3407 | #ifdef __MINT__ |
b0e47665 GS |
3408 | PerlIO_printf(PerlIO_stdout(), |
3409 | "MiNT port by Guido Flohr, 1997-1999\n"); | |
61ae2fbf | 3410 | #endif |
f83d2536 | 3411 | #ifdef EPOC |
b0e47665 | 3412 | PerlIO_printf(PerlIO_stdout(), |
be3c0a43 | 3413 | "EPOC port by Olaf Flebbe, 1999-2002\n"); |
f83d2536 | 3414 | #endif |
e1caacb4 | 3415 | #ifdef UNDER_CE |
b475b3e6 JH |
3416 | PerlIO_printf(PerlIO_stdout(),"WINCE port by Rainer Keuchel, 2001-2002\n"); |
3417 | PerlIO_printf(PerlIO_stdout(),"Built on " __DATE__ " " __TIME__ "\n\n"); | |
e1caacb4 JH |
3418 | wce_hitreturn(); |
3419 | #endif | |
a0fd4948 | 3420 | #ifdef __SYMBIAN32__ |
27da23d5 JH |
3421 | PerlIO_printf(PerlIO_stdout(), |
3422 | "Symbian port by Nokia, 2004-2005\n"); | |
3423 | #endif | |
baed7233 DL |
3424 | #ifdef BINARY_BUILD_NOTICE |
3425 | BINARY_BUILD_NOTICE; | |
3426 | #endif | |
b0e47665 GS |
3427 | PerlIO_printf(PerlIO_stdout(), |
3428 | "\n\ | |
79072805 | 3429 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
3d6f292d | 3430 | GNU General Public License, which may be found in the Perl 5 source kit.\n\n\ |
95103687 | 3431 | Complete documentation for Perl, including FAQ lists, should be found on\n\ |
a0288114 | 3432 | this system using \"man perl\" or \"perldoc perl\". If you have access to the\n\ |
c9e30dd8 | 3433 | Internet, point your browser at http://www.perl.org/, the Perl Home Page.\n\n"); |
7ca617d0 | 3434 | my_exit(0); |
79072805 | 3435 | case 'w': |
b2e5e6ba | 3436 | if (! (PL_dowarn & G_WARN_ALL_MASK)) { |
ac27b0f5 | 3437 | PL_dowarn |= G_WARN_ON; |
b2e5e6ba | 3438 | } |
599cee73 PM |
3439 | s++; |
3440 | return s; | |
3441 | case 'W': | |
ac27b0f5 | 3442 | PL_dowarn = G_WARN_ALL_ON|G_WARN_ON; |
317ea90d | 3443 | if (!specialWARN(PL_compiling.cop_warnings)) |
72dc9ed5 | 3444 | PerlMemShared_free(PL_compiling.cop_warnings); |
d3a7d8c7 | 3445 | PL_compiling.cop_warnings = pWARN_ALL ; |
599cee73 PM |
3446 | s++; |
3447 | return s; | |
3448 | case 'X': | |
ac27b0f5 | 3449 | PL_dowarn = G_WARN_ALL_OFF; |
317ea90d | 3450 | if (!specialWARN(PL_compiling.cop_warnings)) |
72dc9ed5 | 3451 | PerlMemShared_free(PL_compiling.cop_warnings); |
d3a7d8c7 | 3452 | PL_compiling.cop_warnings = pWARN_NONE ; |
79072805 LW |
3453 | s++; |
3454 | return s; | |
a0d0e21e | 3455 | case '*': |
79072805 | 3456 | case ' ': |
d3133c89 NC |
3457 | while( *s == ' ' ) |
3458 | ++s; | |
3459 | if (s[0] == '-') /* Additional switches on #! line. */ | |
3460 | return s+1; | |
79072805 | 3461 | break; |
a0d0e21e | 3462 | case '-': |
79072805 | 3463 | case 0: |
51882d45 | 3464 | #if defined(WIN32) || !defined(PERL_STRICT_CR) |
a868473f NIS |
3465 | case '\r': |
3466 | #endif | |
79072805 LW |
3467 | case '\n': |
3468 | case '\t': | |
3469 | break; | |
aa689395 | 3470 | #ifdef ALTERNATE_SHEBANG |
3471 | case 'S': /* OS/2 needs -S on "extproc" line. */ | |
3472 | break; | |
3473 | #endif | |
79072805 | 3474 | default: |
cea2e8a9 | 3475 | Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s); |
79072805 | 3476 | } |
bd61b366 | 3477 | return NULL; |
79072805 LW |
3478 | } |
3479 | ||
3480 | /* compliments of Tom Christiansen */ | |
3481 | ||
3482 | /* unexec() can be found in the Gnu emacs distribution */ | |
ee580363 | 3483 | /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */ |
79072805 LW |
3484 | |
3485 | void | |
864dbfa3 | 3486 | Perl_my_unexec(pTHX) |
79072805 | 3487 | { |
b37c2d43 | 3488 | PERL_UNUSED_CONTEXT; |
79072805 | 3489 | #ifdef UNEXEC |
b37c2d43 AL |
3490 | SV * prog = newSVpv(BIN_EXP, 0); |
3491 | SV * file = newSVpv(PL_origfilename, 0); | |
ee580363 | 3492 | int status = 1; |
79072805 LW |
3493 | extern int etext; |
3494 | ||
396482e1 | 3495 | sv_catpvs(prog, "/perl"); |
396482e1 | 3496 | sv_catpvs(file, ".perldump"); |
79072805 | 3497 | |
ee580363 GS |
3498 | unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0); |
3499 | /* unexec prints msg to stderr in case of failure */ | |
6ad3d225 | 3500 | PerlProc_exit(status); |
79072805 | 3501 | #else |
a5f75d66 AD |
3502 | # ifdef VMS |
3503 | # include <lib$routines.h> | |
3504 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ | |
84d78eb7 YO |
3505 | # elif defined(WIN32) || defined(__CYGWIN__) |
3506 | Perl_croak(aTHX_ "dump is not supported"); | |
aa689395 | 3507 | # else |
79072805 | 3508 | ABORT(); /* for use with undump */ |
aa689395 | 3509 | # endif |
a5f75d66 | 3510 | #endif |
79072805 LW |
3511 | } |
3512 | ||
cb68f92d GS |
3513 | /* initialize curinterp */ |
3514 | STATIC void | |
cea2e8a9 | 3515 | S_init_interp(pTHX) |
cb68f92d | 3516 | { |
97aff369 | 3517 | dVAR; |
acfe0abc GS |
3518 | #ifdef MULTIPLICITY |
3519 | # define PERLVAR(var,type) | |
3520 | # define PERLVARA(var,n,type) | |
3521 | # if defined(PERL_IMPLICIT_CONTEXT) | |
b7f7fff6 NC |
3522 | # define PERLVARI(var,type,init) aTHX->var = init; |
3523 | # define PERLVARIC(var,type,init) aTHX->var = init; | |
3967c732 | 3524 | # else |
acfe0abc GS |
3525 | # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init; |
3526 | # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init; | |
066ef5b5 | 3527 | # endif |
acfe0abc | 3528 | # include "intrpvar.h" |
acfe0abc GS |
3529 | # undef PERLVAR |
3530 | # undef PERLVARA | |
3531 | # undef PERLVARI | |
3532 | # undef PERLVARIC | |
3533 | #else | |
3534 | # define PERLVAR(var,type) | |
3535 | # define PERLVARA(var,n,type) | |
3536 | # define PERLVARI(var,type,init) PL_##var = init; | |
3537 | # define PERLVARIC(var,type,init) PL_##var = init; | |
3538 | # include "intrpvar.h" | |
acfe0abc GS |
3539 | # undef PERLVAR |
3540 | # undef PERLVARA | |
3541 | # undef PERLVARI | |
3542 | # undef PERLVARIC | |
cb68f92d GS |
3543 | #endif |
3544 | ||
46ab3289 NC |
3545 | /* As these are inside a structure, PERLVARI isn't capable of initialising |
3546 | them */ | |
6c3f0a89 NC |
3547 | PL_reg_oldcurpm = PL_reg_curpm = NULL; |
3548 | PL_reg_poscache = PL_reg_starttry = NULL; | |
cb68f92d GS |
3549 | } |
3550 | ||
76e3520e | 3551 | STATIC void |
cea2e8a9 | 3552 | S_init_main_stash(pTHX) |
79072805 | 3553 | { |
97aff369 | 3554 | dVAR; |
463ee0b2 | 3555 | GV *gv; |
6e72f9df | 3556 | |
3280af22 | 3557 | PL_curstash = PL_defstash = newHV(); |
23579a14 NC |
3558 | /* We know that the string "main" will be in the global shared string |
3559 | table, so it's a small saving to use it rather than allocate another | |
3560 | 8 bytes. */ | |
18916d0d | 3561 | PL_curstname = newSVpvs_share("main"); |
fafc274c | 3562 | gv = gv_fetchpvs("main::", GV_ADD|GV_NOTQUAL, SVt_PVHV); |
23579a14 NC |
3563 | /* If we hadn't caused another reference to "main" to be in the shared |
3564 | string table above, then it would be worth reordering these two, | |
3565 | because otherwise all we do is delete "main" from it as a consequence | |
3566 | of the SvREFCNT_dec, only to add it again with hv_name_set */ | |
adbc6bb1 | 3567 | SvREFCNT_dec(GvHV(gv)); |
23579a14 | 3568 | hv_name_set(PL_defstash, "main", 4, 0); |
85fbaab2 | 3569 | GvHV(gv) = MUTABLE_HV(SvREFCNT_inc_simple(PL_defstash)); |
463ee0b2 | 3570 | SvREADONLY_on(gv); |
fafc274c NC |
3571 | PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpvs("INC", GV_ADD|GV_NOTQUAL, |
3572 | SVt_PVAV))); | |
5a5094bd | 3573 | SvREFCNT_inc_simple_void(PL_incgv); /* Don't allow it to be freed */ |
3280af22 | 3574 | GvMULTI_on(PL_incgv); |
fafc274c | 3575 | PL_hintgv = gv_fetchpvs("\010", GV_ADD|GV_NOTQUAL, SVt_PV); /* ^H */ |
3280af22 | 3576 | GvMULTI_on(PL_hintgv); |
fafc274c | 3577 | PL_defgv = gv_fetchpvs("_", GV_ADD|GV_NOTQUAL, SVt_PVAV); |
5a5094bd | 3578 | SvREFCNT_inc_simple_void(PL_defgv); |
fafc274c | 3579 | PL_errgv = gv_HVadd(gv_fetchpvs("@", GV_ADD|GV_NOTQUAL, SVt_PV)); |
5a5094bd | 3580 | SvREFCNT_inc_simple_void(PL_errgv); |
3280af22 | 3581 | GvMULTI_on(PL_errgv); |
fafc274c | 3582 | PL_replgv = gv_fetchpvs("\022", GV_ADD|GV_NOTQUAL, SVt_PV); /* ^R */ |
3280af22 | 3583 | GvMULTI_on(PL_replgv); |
cea2e8a9 | 3584 | (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */ |
c69033f2 NC |
3585 | #ifdef PERL_DONT_CREATE_GVSV |
3586 | gv_SVadd(PL_errgv); | |
3587 | #endif | |
38a03e6e | 3588 | sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */ |
ab69dbc2 | 3589 | CLEAR_ERRSV(); |
3280af22 | 3590 | PL_curstash = PL_defstash; |
11faa288 | 3591 | CopSTASH_set(&PL_compiling, PL_defstash); |
5c1737d1 NC |
3592 | PL_debstash = GvHV(gv_fetchpvs("DB::", GV_ADDMULTI, SVt_PVHV)); |
3593 | PL_globalstash = GvHV(gv_fetchpvs("CORE::GLOBAL::", GV_ADDMULTI, | |
3594 | SVt_PVHV)); | |
4633a7c4 | 3595 | /* We must init $/ before switches are processed. */ |
64ace3f8 | 3596 | sv_setpvs(get_sv("/", GV_ADD), "\n"); |
79072805 LW |
3597 | } |
3598 | ||
fdf5d70d | 3599 | STATIC int |
2f352907 | 3600 | S_open_script(pTHX_ const char *scriptname, bool dosearch, |
f20b2998 | 3601 | bool *suidscript, PerlIO **rsfpp) |
79072805 | 3602 | { |
fdf5d70d | 3603 | int fdscript = -1; |
27da23d5 | 3604 | dVAR; |
1b24ed4b | 3605 | |
7918f24d NC |
3606 | PERL_ARGS_ASSERT_OPEN_SCRIPT; |
3607 | ||
3280af22 | 3608 | if (PL_e_script) { |
efdc43f5 | 3609 | PL_origfilename = (PL_minus_E ? savepvs("-E") : savepvs( "-e" )); |
96436eeb | 3610 | } |
6c4ab083 GS |
3611 | else { |
3612 | /* if find_script() returns, it returns a malloc()-ed value */ | |
dd374669 | 3613 | scriptname = PL_origfilename = find_script(scriptname, dosearch, NULL, 1); |
6c4ab083 GS |
3614 | |
3615 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { | |
e1ec3a88 | 3616 | const char *s = scriptname + 8; |
fdf5d70d | 3617 | fdscript = atoi(s); |
6c4ab083 GS |
3618 | while (isDIGIT(*s)) |
3619 | s++; | |
3620 | if (*s) { | |
ae3f3efd PS |
3621 | /* PSz 18 Feb 04 |
3622 | * Tell apart "normal" usage of fdscript, e.g. | |
3623 | * with bash on FreeBSD: | |
3624 | * perl <( echo '#!perl -DA'; echo 'print "$0\n"') | |
3625 | * from usage in suidperl. | |
3626 | * Does any "normal" usage leave garbage after the number??? | |
3627 | * Is it a mistake to use a similar /dev/fd/ construct for | |
3628 | * suidperl? | |
3629 | */ | |
f20b2998 | 3630 | *suidscript = TRUE; |
ae3f3efd PS |
3631 | /* PSz 20 Feb 04 |
3632 | * Be supersafe and do some sanity-checks. | |
3633 | * Still, can we be sure we got the right thing? | |
3634 | */ | |
3635 | if (*s != '/') { | |
3636 | Perl_croak(aTHX_ "Wrong syntax (suid) fd script name \"%s\"\n", s); | |
3637 | } | |
3638 | if (! *(s+1)) { | |
3639 | Perl_croak(aTHX_ "Missing (suid) fd script name\n"); | |
3640 | } | |
6c4ab083 | 3641 | scriptname = savepv(s + 1); |
3280af22 | 3642 | Safefree(PL_origfilename); |
dd374669 | 3643 | PL_origfilename = (char *)scriptname; |
6c4ab083 GS |
3644 | } |
3645 | } | |
3646 | } | |
3647 | ||
05ec9bb3 | 3648 | CopFILE_free(PL_curcop); |
57843af0 | 3649 | CopFILE_set(PL_curcop, PL_origfilename); |
770526c1 | 3650 | if (*PL_origfilename == '-' && PL_origfilename[1] == '\0') |
dd374669 | 3651 | scriptname = (char *)""; |
fdf5d70d | 3652 | if (fdscript >= 0) { |
2f9285f8 | 3653 | *rsfpp = PerlIO_fdopen(fdscript,PERL_SCRIPT_MODE); |
1b24ed4b | 3654 | # if defined(HAS_FCNTL) && defined(F_SETFD) |
2f9285f8 | 3655 | if (*rsfpp) |
1b24ed4b | 3656 | /* ensure close-on-exec */ |
2f9285f8 | 3657 | fcntl(PerlIO_fileno(*rsfpp),F_SETFD,1); |
1b24ed4b | 3658 | # endif |
96436eeb | 3659 | } |
ae3f3efd PS |
3660 | #ifdef IAMSUID |
3661 | else { | |
86207487 NC |
3662 | Perl_croak(aTHX_ "sperl needs fd script\n" |
3663 | "You should not call sperl directly; do you need to " | |
3664 | "change a #! line\nfrom sperl to perl?\n"); | |
3665 | ||
ae3f3efd PS |
3666 | /* PSz 11 Nov 03 |
3667 | * Do not open (or do other fancy stuff) while setuid. | |
3668 | * Perl does the open, and hands script to suidperl on a fd; | |
3669 | * suidperl only does some checks, sets up UIDs and re-execs | |
3670 | * perl with that fd as it has always done. | |
3671 | */ | |
3672 | } | |
37d5d4df | 3673 | if (!*suidscript) { |
ae3f3efd PS |
3674 | Perl_croak(aTHX_ "suidperl needs (suid) fd script\n"); |
3675 | } | |
3676 | #else /* IAMSUID */ | |
79072805 | 3677 | else if (!*scriptname) { |
cdd8118e | 3678 | forbid_setid(0, *suidscript); |
2f9285f8 | 3679 | *rsfpp = PerlIO_stdin(); |
79072805 | 3680 | } |
96436eeb | 3681 | else { |
9c12f1e5 RGS |
3682 | #ifdef FAKE_BIT_BUCKET |
3683 | /* This hack allows one not to have /dev/null (or BIT_BUCKET as it | |
3684 | * is called) and still have the "-e" work. (Believe it or not, | |
3685 | * a /dev/null is required for the "-e" to work because source | |
3686 | * filter magic is used to implement it. ) This is *not* a general | |
3687 | * replacement for a /dev/null. What we do here is create a temp | |
3688 | * file (an empty file), open up that as the script, and then | |
3689 | * immediately close and unlink it. Close enough for jazz. */ | |
3690 | #define FAKE_BIT_BUCKET_PREFIX "/tmp/perlnull-" | |
3691 | #define FAKE_BIT_BUCKET_SUFFIX "XXXXXXXX" | |
3692 | #define FAKE_BIT_BUCKET_TEMPLATE FAKE_BIT_BUCKET_PREFIX FAKE_BIT_BUCKET_SUFFIX | |
3693 | char tmpname[sizeof(FAKE_BIT_BUCKET_TEMPLATE)] = { | |
3694 | FAKE_BIT_BUCKET_TEMPLATE | |
3695 | }; | |
3696 | const char * const err = "Failed to create a fake bit bucket"; | |
3697 | if (strEQ(scriptname, BIT_BUCKET)) { | |
3698 | #ifdef HAS_MKSTEMP /* Hopefully mkstemp() is safe here. */ | |
3699 | int tmpfd = mkstemp(tmpname); | |
3700 | if (tmpfd > -1) { | |
3701 | scriptname = tmpname; | |
3702 | close(tmpfd); | |
3703 | } else | |
3704 | Perl_croak(aTHX_ err); | |
3705 | #else | |
3706 | # ifdef HAS_MKTEMP | |
3707 | scriptname = mktemp(tmpname); | |
3708 | if (!scriptname) | |
3709 | Perl_croak(aTHX_ err); | |
3710 | # endif | |
3711 | #endif | |
3712 | } | |
3713 | #endif | |
2f9285f8 | 3714 | *rsfpp = PerlIO_open(scriptname,PERL_SCRIPT_MODE); |
9c12f1e5 RGS |
3715 | #ifdef FAKE_BIT_BUCKET |
3716 | if (memEQ(scriptname, FAKE_BIT_BUCKET_PREFIX, | |
3717 | sizeof(FAKE_BIT_BUCKET_PREFIX) - 1) | |
3718 | && strlen(scriptname) == sizeof(tmpname) - 1) { | |
3719 | unlink(scriptname); | |
3720 | } | |
3721 | scriptname = BIT_BUCKET; | |
3722 | #endif | |
1b24ed4b | 3723 | # if defined(HAS_FCNTL) && defined(F_SETFD) |
2f9285f8 | 3724 | if (*rsfpp) |
1b24ed4b | 3725 | /* ensure close-on-exec */ |
2f9285f8 | 3726 | fcntl(PerlIO_fileno(*rsfpp),F_SETFD,1); |
1b24ed4b | 3727 | # endif |
96436eeb | 3728 | } |
ae3f3efd | 3729 | #endif /* IAMSUID */ |
2f9285f8 | 3730 | if (!*rsfpp) { |
447218f8 | 3731 | /* PSz 16 Sep 03 Keep neat error message */ |
b1681ed3 RGS |
3732 | if (PL_e_script) |
3733 | Perl_croak(aTHX_ "Can't open "BIT_BUCKET": %s\n", Strerror(errno)); | |
3734 | else | |
3735 | Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n", | |
3736 | CopFILE(PL_curcop), Strerror(errno)); | |
13281fa4 | 3737 | } |
fdf5d70d | 3738 | return fdscript; |
79072805 | 3739 | } |
8d063cd8 | 3740 | |
7b89560d JH |
3741 | /* Mention |
3742 | * I_SYSSTATVFS HAS_FSTATVFS | |
3743 | * I_SYSMOUNT | |
c890dc6c | 3744 | * I_STATFS HAS_FSTATFS HAS_GETFSSTAT |
7b89560d JH |
3745 | * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT |
3746 | * here so that metaconfig picks them up. */ | |
3747 | ||
104d25b7 | 3748 | #ifdef IAMSUID |
864dbfa3 | 3749 | STATIC int |
e688b231 | 3750 | S_fd_on_nosuid_fs(pTHX_ int fd) |
104d25b7 | 3751 | { |
ae3f3efd PS |
3752 | /* PSz 27 Feb 04 |
3753 | * We used to do this as "plain" user (after swapping UIDs with setreuid); | |
3754 | * but is needed also on machines without setreuid. | |
3755 | * Seems safe enough to run as root. | |
3756 | */ | |
0545a864 JH |
3757 | int check_okay = 0; /* able to do all the required sys/libcalls */ |
3758 | int on_nosuid = 0; /* the fd is on a nosuid fs */ | |
ae3f3efd PS |
3759 | /* PSz 12 Nov 03 |
3760 | * Need to check noexec also: nosuid might not be set, the average | |
3761 | * sysadmin would say that nosuid is irrelevant once he sets noexec. | |
3762 | */ | |
3763 | int on_noexec = 0; /* the fd is on a noexec fs */ | |
3764 | ||
104d25b7 | 3765 | /* |
ad27e871 | 3766 | * Preferred order: fstatvfs(), fstatfs(), ustat()+getmnt(), getmntent(). |
e688b231 | 3767 | * fstatvfs() is UNIX98. |
0545a864 | 3768 | * fstatfs() is 4.3 BSD. |
ad27e871 | 3769 | * ustat()+getmnt() is pre-4.3 BSD. |
0545a864 JH |
3770 | * getmntent() is O(number-of-mounted-filesystems) and can hang on |
3771 | * an irrelevant filesystem while trying to reach the right one. | |
104d25b7 JH |
3772 | */ |
3773 | ||
6439433f JH |
3774 | #undef FD_ON_NOSUID_CHECK_OKAY /* found the syscalls to do the check? */ |
3775 | ||
3776 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3777 | defined(HAS_FSTATVFS) | |
3778 | # define FD_ON_NOSUID_CHECK_OKAY | |
104d25b7 | 3779 | struct statvfs stfs; |
6439433f | 3780 | |
104d25b7 JH |
3781 | check_okay = fstatvfs(fd, &stfs) == 0; |
3782 | on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID); | |
ae3f3efd PS |
3783 | #ifdef ST_NOEXEC |
3784 | /* ST_NOEXEC certainly absent on AIX 5.1, and doesn't seem to be documented | |
3785 | on platforms where it is present. */ | |
3786 | on_noexec = check_okay && (stfs.f_flag & ST_NOEXEC); | |
3787 | #endif | |
6439433f | 3788 | # endif /* fstatvfs */ |
ac27b0f5 | 3789 | |
6439433f JH |
3790 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ |
3791 | defined(PERL_MOUNT_NOSUID) && \ | |
ae3f3efd | 3792 | defined(PERL_MOUNT_NOEXEC) && \ |
6439433f JH |
3793 | defined(HAS_FSTATFS) && \ |
3794 | defined(HAS_STRUCT_STATFS) && \ | |
3795 | defined(HAS_STRUCT_STATFS_F_FLAGS) | |
3796 | # define FD_ON_NOSUID_CHECK_OKAY | |
e688b231 | 3797 | struct statfs stfs; |
6439433f | 3798 | |
104d25b7 | 3799 | check_okay = fstatfs(fd, &stfs) == 0; |
104d25b7 | 3800 | on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID); |
ae3f3efd | 3801 | on_noexec = check_okay && (stfs.f_flags & PERL_MOUNT_NOEXEC); |
6439433f JH |
3802 | # endif /* fstatfs */ |
3803 | ||
3804 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3805 | defined(PERL_MOUNT_NOSUID) && \ | |
ae3f3efd | 3806 | defined(PERL_MOUNT_NOEXEC) && \ |
6439433f JH |
3807 | defined(HAS_FSTAT) && \ |
3808 | defined(HAS_USTAT) && \ | |
3809 | defined(HAS_GETMNT) && \ | |
3810 | defined(HAS_STRUCT_FS_DATA) && \ | |
3811 | defined(NOSTAT_ONE) | |
3812 | # define FD_ON_NOSUID_CHECK_OKAY | |
c623ac67 | 3813 | Stat_t fdst; |
6439433f | 3814 | |
0545a864 | 3815 | if (fstat(fd, &fdst) == 0) { |
6439433f JH |
3816 | struct ustat us; |
3817 | if (ustat(fdst.st_dev, &us) == 0) { | |
3818 | struct fs_data fsd; | |
3819 | /* NOSTAT_ONE here because we're not examining fields which | |
3820 | * vary between that case and STAT_ONE. */ | |
ad27e871 | 3821 | if (getmnt((int*)0, &fsd, (int)0, NOSTAT_ONE, us.f_fname) == 0) { |
6439433f JH |
3822 | size_t cmplen = sizeof(us.f_fname); |
3823 | if (sizeof(fsd.fd_req.path) < cmplen) | |
3824 | cmplen = sizeof(fsd.fd_req.path); | |
3825 | if (strnEQ(fsd.fd_req.path, us.f_fname, cmplen) && | |
3826 | fdst.st_dev == fsd.fd_req.dev) { | |
6e186fbe MHM |
3827 | check_okay = 1; |
3828 | on_nosuid = fsd.fd_req.flags & PERL_MOUNT_NOSUID; | |
3829 | on_noexec = fsd.fd_req.flags & PERL_MOUNT_NOEXEC; | |
6439433f JH |
3830 | } |
3831 | } | |
3832 | } | |
0545a864 | 3833 | } |
6439433f JH |
3834 | # endif /* fstat+ustat+getmnt */ |
3835 | ||
3836 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3837 | defined(HAS_GETMNTENT) && \ | |
3838 | defined(HAS_HASMNTOPT) && \ | |
ae3f3efd PS |
3839 | defined(MNTOPT_NOSUID) && \ |
3840 | defined(MNTOPT_NOEXEC) | |
6439433f JH |
3841 | # define FD_ON_NOSUID_CHECK_OKAY |
3842 | FILE *mtab = fopen("/etc/mtab", "r"); | |
3843 | struct mntent *entry; | |
c623ac67 | 3844 | Stat_t stb, fsb; |
104d25b7 JH |
3845 | |
3846 | if (mtab && (fstat(fd, &stb) == 0)) { | |
6439433f JH |
3847 | while (entry = getmntent(mtab)) { |
3848 | if (stat(entry->mnt_dir, &fsb) == 0 | |
3849 | && fsb.st_dev == stb.st_dev) | |
3850 | { | |
3851 | /* found the filesystem */ | |
3852 | check_okay = 1; | |
3853 | if (hasmntopt(entry, MNTOPT_NOSUID)) | |
3854 | on_nosuid = 1; | |
ae3f3efd PS |
3855 | if (hasmntopt(entry, MNTOPT_NOEXEC)) |
3856 | on_noexec = 1; | |
6439433f JH |
3857 | break; |
3858 | } /* A single fs may well fail its stat(). */ | |
3859 | } | |
104d25b7 JH |
3860 | } |
3861 | if (mtab) | |
6439433f JH |
3862 | fclose(mtab); |
3863 | # endif /* getmntent+hasmntopt */ | |
0545a864 | 3864 | |
ac27b0f5 | 3865 | if (!check_okay) |
ae3f3efd PS |
3866 | Perl_croak(aTHX_ "Can't check filesystem of script \"%s\" for nosuid/noexec", PL_origfilename); |
3867 | if (on_nosuid) | |
3868 | Perl_croak(aTHX_ "Setuid script \"%s\" on nosuid filesystem", PL_origfilename); | |
3869 | if (on_noexec) | |
3870 | Perl_croak(aTHX_ "Setuid script \"%s\" on noexec filesystem", PL_origfilename); | |
3871 | return ((!check_okay) || on_nosuid || on_noexec); | |
104d25b7 JH |
3872 | } |
3873 | #endif /* IAMSUID */ | |
3874 | ||
ec2019ad | 3875 | #ifdef DOSUID |
76e3520e | 3876 | STATIC void |
ec2019ad NC |
3877 | S_validate_suid(pTHX_ const char *validarg, |
3878 | # ifndef IAMSUID | |
3879 | const char *scriptname, | |
3880 | # endif | |
3881 | int fdscript, | |
3882 | # ifdef IAMSUID | |
f20b2998 | 3883 | bool suidscript, |
ec2019ad NC |
3884 | # endif |
3885 | SV *linestr_sv, PerlIO *rsfp) | |
79072805 | 3886 | { |
27da23d5 | 3887 | dVAR; |
7191f387 | 3888 | const char *s, *s2; |
96436eeb | 3889 | |
7918f24d NC |
3890 | PERL_ARGS_ASSERT_VALIDATE_SUID; |
3891 | ||
13281fa4 LW |
3892 | /* do we need to emulate setuid on scripts? */ |
3893 | ||
3894 | /* This code is for those BSD systems that have setuid #! scripts disabled | |
3895 | * in the kernel because of a security problem. Merely defining DOSUID | |
3896 | * in perl will not fix that problem, but if you have disabled setuid | |
3897 | * scripts in the kernel, this will attempt to emulate setuid and setgid | |
3898 | * on scripts that have those now-otherwise-useless bits set. The setuid | |
27e2fb84 LW |
3899 | * root version must be called suidperl or sperlN.NNN. If regular perl |
3900 | * discovers that it has opened a setuid script, it calls suidperl with | |
3901 | * the same argv that it had. If suidperl finds that the script it has | |
3902 | * just opened is NOT setuid root, it sets the effective uid back to the | |
3903 | * uid. We don't just make perl setuid root because that loses the | |
3904 | * effective uid we had before invoking perl, if it was different from the | |
3905 | * uid. | |
ae3f3efd PS |
3906 | * PSz 27 Feb 04 |
3907 | * Description/comments above do not match current workings: | |
3908 | * suidperl must be hardlinked to sperlN.NNN (that is what we exec); | |
3909 | * suidperl called with script open and name changed to /dev/fd/N/X; | |
3910 | * suidperl croaks if script is not setuid; | |
3911 | * making perl setuid would be a huge security risk (and yes, that | |
3912 | * would lose any euid we might have had). | |
13281fa4 LW |
3913 | * |
3914 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must | |
3915 | * be defined in suidperl only. suidperl must be setuid root. The | |
3916 | * Configure script will set this up for you if you want it. | |
3917 | */ | |
a687059c | 3918 | |
2f9285f8 | 3919 | if (PerlLIO_fstat(PerlIO_fileno(rsfp),&PL_statbuf) < 0) /* normal stat is insecure */ |
cea2e8a9 | 3920 | Perl_croak(aTHX_ "Can't stat script \"%s\"",PL_origfilename); |
ae3f3efd | 3921 | if (PL_statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 | 3922 | I32 len; |
dd720ed5 | 3923 | const char *linestr; |
42d9b98d | 3924 | const char *s_end; |
13281fa4 | 3925 | |
dcd07940 | 3926 | # ifdef IAMSUID |
f20b2998 | 3927 | if (fdscript < 0 || !suidscript) |
ae3f3efd PS |
3928 | Perl_croak(aTHX_ "Need (suid) fdscript in suidperl\n"); /* We already checked this */ |
3929 | /* PSz 11 Nov 03 | |
3930 | * Since the script is opened by perl, not suidperl, some of these | |
3931 | * checks are superfluous. Leaving them in probably does not lower | |
3932 | * security(?!). | |
3933 | */ | |
3934 | /* PSz 27 Feb 04 | |
3935 | * Do checks even for systems with no HAS_SETREUID. | |
3936 | * We used to swap, then re-swap UIDs with | |
dcd07940 | 3937 | # ifdef HAS_SETREUID |
ae3f3efd PS |
3938 | if (setreuid(PL_euid,PL_uid) < 0 |
3939 | || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid) | |
3940 | Perl_croak(aTHX_ "Can't swap uid and euid"); | |
dcd07940 DM |
3941 | # endif |
3942 | # ifdef HAS_SETREUID | |
ae3f3efd PS |
3943 | if (setreuid(PL_uid,PL_euid) < 0 |
3944 | || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid) | |
3945 | Perl_croak(aTHX_ "Can't reswap uid and euid"); | |
dcd07940 | 3946 | # endif |
ae3f3efd PS |
3947 | */ |
3948 | ||
a687059c LW |
3949 | /* On this access check to make sure the directories are readable, |
3950 | * there is actually a small window that the user could use to make | |
3951 | * filename point to an accessible directory. So there is a faint | |
3952 | * chance that someone could execute a setuid script down in a | |
3953 | * non-accessible directory. I don't know what to do about that. | |
3954 | * But I don't think it's too important. The manual lies when | |
3955 | * it says access() is useful in setuid programs. | |
ae3f3efd PS |
3956 | * |
3957 | * So, access() is pretty useless... but not harmful... do anyway. | |
a687059c | 3958 | */ |
e57400b1 | 3959 | if (PerlLIO_access(CopFILE(PL_curcop),1)) { /*double check*/ |
ae3f3efd | 3960 | Perl_croak(aTHX_ "Can't access() script\n"); |
e57400b1 | 3961 | } |
ae3f3efd | 3962 | |
a687059c LW |
3963 | /* If we can swap euid and uid, then we can determine access rights |
3964 | * with a simple stat of the file, and then compare device and | |
3965 | * inode to make sure we did stat() on the same file we opened. | |
3966 | * Then we just have to make sure he or she can execute it. | |
ae3f3efd PS |
3967 | * |
3968 | * PSz 24 Feb 04 | |
3969 | * As the script is opened by perl, not suidperl, we do not need to | |
3970 | * care much about access rights. | |
3971 | * | |
3972 | * The 'script changed' check is needed, or we can get lied to | |
3973 | * about $0 with e.g. | |
3974 | * suidperl /dev/fd/4//bin/x 4<setuidscript | |
3975 | * Without HAS_SETREUID, is it safe to stat() as root? | |
3976 | * | |
3977 | * Are there any operating systems that pass /dev/fd/xxx for setuid | |
3978 | * scripts, as suggested/described in perlsec(1)? Surely they do not | |
3979 | * pass the script name as we do, so the "script changed" test would | |
3980 | * fail for them... but we never get here with | |
3981 | * SETUID_SCRIPTS_ARE_SECURE_NOW defined. | |
3982 | * | |
3983 | * This is one place where we must "lie" about return status: not | |
3984 | * say if the stat() failed. We are doing this as root, and could | |
3985 | * be tricked into reporting existence or not of files that the | |
3986 | * "plain" user cannot even see. | |
a687059c LW |
3987 | */ |
3988 | { | |
c623ac67 | 3989 | Stat_t tmpstatbuf; |
ae3f3efd PS |
3990 | if (PerlLIO_stat(CopFILE(PL_curcop),&tmpstatbuf) < 0 || |
3991 | tmpstatbuf.st_dev != PL_statbuf.st_dev || | |
b28d0864 | 3992 | tmpstatbuf.st_ino != PL_statbuf.st_ino) { |
ae3f3efd | 3993 | Perl_croak(aTHX_ "Setuid script changed\n"); |
a687059c | 3994 | } |
ae3f3efd | 3995 | |
a687059c | 3996 | } |
ae3f3efd PS |
3997 | if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */ |
3998 | Perl_croak(aTHX_ "Real UID cannot exec script\n"); | |
3999 | ||
4000 | /* PSz 27 Feb 04 | |
4001 | * We used to do this check as the "plain" user (after swapping | |
4002 | * UIDs). But the check for nosuid and noexec filesystem is needed, | |
4003 | * and should be done even without HAS_SETREUID. (Maybe those | |
4004 | * operating systems do not have such mount options anyway...) | |
4005 | * Seems safe enough to do as root. | |
4006 | */ | |
dcd07940 | 4007 | # if !defined(NO_NOSUID_CHECK) |
2f9285f8 | 4008 | if (fd_on_nosuid_fs(PerlIO_fileno(rsfp))) { |
ae3f3efd PS |
4009 | Perl_croak(aTHX_ "Setuid script on nosuid or noexec filesystem\n"); |
4010 | } | |
dcd07940 DM |
4011 | # endif |
4012 | # endif /* IAMSUID */ | |
a687059c | 4013 | |
e57400b1 | 4014 | if (!S_ISREG(PL_statbuf.st_mode)) { |
ae3f3efd | 4015 | Perl_croak(aTHX_ "Setuid script not plain file\n"); |
e57400b1 | 4016 | } |
b28d0864 | 4017 | if (PL_statbuf.st_mode & S_IWOTH) |
cea2e8a9 | 4018 | Perl_croak(aTHX_ "Setuid/gid script is writable by world"); |
6b88bc9c | 4019 | PL_doswitches = FALSE; /* -s is insecure in suid */ |
ae3f3efd | 4020 | /* PSz 13 Nov 03 But -s was caught elsewhere ... so unsetting it here is useless(?!) */ |
57843af0 | 4021 | CopLINE_inc(PL_curcop); |
2f9285f8 | 4022 | if (sv_gets(linestr_sv, rsfp, 0) == NULL) |
f8d2da62 | 4023 | Perl_croak(aTHX_ "No #! line"); |
009d90df | 4024 | linestr = SvPV_nolen_const(linestr_sv); |
f8d2da62 RGS |
4025 | /* required even on Sys V */ |
4026 | if (!*linestr || !linestr[1] || strnNE(linestr,"#!",2)) | |
cea2e8a9 | 4027 | Perl_croak(aTHX_ "No #! line"); |
f8d2da62 | 4028 | linestr += 2; |
dd720ed5 | 4029 | s = linestr; |
ae3f3efd PS |
4030 | /* PSz 27 Feb 04 */ |
4031 | /* Sanity check on line length */ | |
42d9b98d NC |
4032 | s_end = s + strlen(s); |
4033 | if (s_end == s || (s_end - s) > 4000) | |
ae3f3efd PS |
4034 | Perl_croak(aTHX_ "Very long #! line"); |
4035 | /* Allow more than a single space after #! */ | |
4036 | while (isSPACE(*s)) s++; | |
4037 | /* Sanity check on buffer end */ | |
4038 | while ((*s) && !isSPACE(*s)) s++; | |
dd720ed5 | 4039 | for (s2 = s; (s2 > linestr && |
3792a11b NC |
4040 | (isDIGIT(s2[-1]) || s2[-1] == '.' || s2[-1] == '_' |
4041 | || s2[-1] == '-')); s2--) ; | |
ae3f3efd | 4042 | /* Sanity check on buffer start */ |
dd720ed5 NC |
4043 | if ( (s2-4 < linestr || strnNE(s2-4,"perl",4)) && |
4044 | (s-9 < linestr || strnNE(s-9,"perl",4)) ) | |
cea2e8a9 | 4045 | Perl_croak(aTHX_ "Not a perl script"); |
a687059c | 4046 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 LW |
4047 | /* |
4048 | * #! arg must be what we saw above. They can invoke it by | |
4049 | * mentioning suidperl explicitly, but they may not add any strange | |
4050 | * arguments beyond what #! says if they do invoke suidperl that way. | |
4051 | */ | |
ae3f3efd PS |
4052 | /* |
4053 | * The way validarg was set up, we rely on the kernel to start | |
4054 | * scripts with argv[1] set to contain all #! line switches (the | |
4055 | * whole line). | |
4056 | */ | |
4057 | /* | |
4058 | * Check that we got all the arguments listed in the #! line (not | |
4059 | * just that there are no extraneous arguments). Might not matter | |
4060 | * much, as switches from #! line seem to be acted upon (also), and | |
4061 | * so may be checked and trapped in perl. But, security checks must | |
4062 | * be done in suidperl and not deferred to perl. Note that suidperl | |
4063 | * does not get around to parsing (and checking) the switches on | |
4064 | * the #! line (but execs perl sooner). | |
4065 | * Allow (require) a trailing newline (which may be of two | |
4066 | * characters on some architectures?) (but no other trailing | |
4067 | * whitespace). | |
4068 | */ | |
13281fa4 LW |
4069 | len = strlen(validarg); |
4070 | if (strEQ(validarg," PHOOEY ") || | |
ae3f3efd | 4071 | strnNE(s,validarg,len) || !isSPACE(s[len]) || |
42d9b98d NC |
4072 | !((s_end - s) == len+1 |
4073 | || ((s_end - s) == len+2 && isSPACE(s[len+1])))) | |
cea2e8a9 | 4074 | Perl_croak(aTHX_ "Args must match #! line"); |
a687059c | 4075 | |
dcd07940 | 4076 | # ifndef IAMSUID |
fdf5d70d | 4077 | if (fdscript < 0 && |
ae3f3efd | 4078 | PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) && |
b28d0864 NIS |
4079 | PL_euid == PL_statbuf.st_uid) |
4080 | if (!PL_do_undump) | |
cea2e8a9 | 4081 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
11fb1898 | 4082 | FIX YOUR KERNEL, OR PUT A C WRAPPER AROUND THIS SCRIPT!\n"); |
dcd07940 | 4083 | # endif /* IAMSUID */ |
13281fa4 | 4084 | |
fdf5d70d | 4085 | if (fdscript < 0 && |
ae3f3efd PS |
4086 | PL_euid) { /* oops, we're not the setuid root perl */ |
4087 | /* PSz 18 Feb 04 | |
4088 | * When root runs a setuid script, we do not go through the same | |
4089 | * steps of execing sperl and then perl with fd scripts, but | |
4090 | * simply set up UIDs within the same perl invocation; so do | |
4091 | * not have the same checks (on options, whatever) that we have | |
4092 | * for plain users. No problem really: would have to be a script | |
4093 | * that does not actually work for plain users; and if root is | |
4094 | * foolish and can be persuaded to run such an unsafe script, he | |
4095 | * might run also non-setuid ones, and deserves what he gets. | |
4096 | * | |
4097 | * Or, we might drop the PL_euid check above (and rely just on | |
fdf5d70d | 4098 | * fdscript to avoid loops), and do the execs |
ae3f3efd PS |
4099 | * even for root. |
4100 | */ | |
dcd07940 | 4101 | # ifndef IAMSUID |
ae3f3efd PS |
4102 | int which; |
4103 | /* PSz 11 Nov 03 | |
4104 | * Pass fd script to suidperl. | |
4105 | * Exec suidperl, substituting fd script for scriptname. | |
4106 | * Pass script name as "subdir" of fd, which perl will grok; | |
4107 | * in fact will use that to distinguish this from "normal" | |
4108 | * usage, see comments above. | |
4109 | */ | |
2f9285f8 DM |
4110 | PerlIO_rewind(rsfp); |
4111 | PerlLIO_lseek(PerlIO_fileno(rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
ae3f3efd PS |
4112 | /* PSz 27 Feb 04 Sanity checks on scriptname */ |
4113 | if ((!scriptname) || (!*scriptname) ) { | |
4114 | Perl_croak(aTHX_ "No setuid script name\n"); | |
4115 | } | |
4116 | if (*scriptname == '-') { | |
4117 | Perl_croak(aTHX_ "Setuid script name may not begin with dash\n"); | |
4118 | /* Or we might confuse it with an option when replacing | |
4119 | * name in argument list, below (though we do pointer, not | |
4120 | * string, comparisons). | |
4121 | */ | |
4122 | } | |
4123 | for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; | |
4124 | if (!PL_origargv[which]) { | |
4125 | Perl_croak(aTHX_ "Can't change argv to have fd script\n"); | |
4126 | } | |
4127 | PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s", | |
2f9285f8 | 4128 | PerlIO_fileno(rsfp), PL_origargv[which])); |
dcd07940 | 4129 | # if defined(HAS_FCNTL) && defined(F_SETFD) |
2f9285f8 | 4130 | fcntl(PerlIO_fileno(rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
dcd07940 | 4131 | # endif |
b35112e7 | 4132 | PERL_FPU_PRE_EXEC |
a7cb1f99 | 4133 | PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT, BIN_EXP, |
273cf8d1 GS |
4134 | (int)PERL_REVISION, (int)PERL_VERSION, |
4135 | (int)PERL_SUBVERSION), PL_origargv); | |
b35112e7 | 4136 | PERL_FPU_POST_EXEC |
dcd07940 | 4137 | # endif /* IAMSUID */ |
ae3f3efd | 4138 | Perl_croak(aTHX_ "Can't do setuid (cannot exec sperl)\n"); |
13281fa4 LW |
4139 | } |
4140 | ||
b28d0864 | 4141 | if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) { |
ae3f3efd PS |
4142 | /* PSz 26 Feb 04 |
4143 | * This seems back to front: we try HAS_SETEGID first; if not available | |
4144 | * then try HAS_SETREGID; as a last chance we try HAS_SETRESGID. May be OK | |
4145 | * in the sense that we only want to set EGID; but are there any machines | |
4146 | * with either of the latter, but not the former? Same with UID, later. | |
4147 | */ | |
dcd07940 | 4148 | # ifdef HAS_SETEGID |
b28d0864 | 4149 | (void)setegid(PL_statbuf.st_gid); |
dcd07940 DM |
4150 | # else |
4151 | # ifdef HAS_SETREGID | |
b28d0864 | 4152 | (void)setregid((Gid_t)-1,PL_statbuf.st_gid); |
dcd07940 DM |
4153 | # else |
4154 | # ifdef HAS_SETRESGID | |
b28d0864 | 4155 | (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1); |
dcd07940 | 4156 | # else |
b28d0864 | 4157 | PerlProc_setgid(PL_statbuf.st_gid); |
dcd07940 DM |
4158 | # endif |
4159 | # endif | |
4160 | # endif | |
b28d0864 | 4161 | if (PerlProc_getegid() != PL_statbuf.st_gid) |
cea2e8a9 | 4162 | Perl_croak(aTHX_ "Can't do setegid!\n"); |
83025b21 | 4163 | } |
b28d0864 NIS |
4164 | if (PL_statbuf.st_mode & S_ISUID) { |
4165 | if (PL_statbuf.st_uid != PL_euid) | |
dcd07940 | 4166 | # ifdef HAS_SETEUID |
b28d0864 | 4167 | (void)seteuid(PL_statbuf.st_uid); /* all that for this */ |
dcd07940 DM |
4168 | # else |
4169 | # ifdef HAS_SETREUID | |
b28d0864 | 4170 | (void)setreuid((Uid_t)-1,PL_statbuf.st_uid); |
dcd07940 DM |
4171 | # else |
4172 | # ifdef HAS_SETRESUID | |
b28d0864 | 4173 | (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1); |
dcd07940 | 4174 | # else |
b28d0864 | 4175 | PerlProc_setuid(PL_statbuf.st_uid); |
dcd07940 DM |
4176 | # endif |
4177 | # endif | |
4178 | # endif | |
b28d0864 | 4179 | if (PerlProc_geteuid() != PL_statbuf.st_uid) |
cea2e8a9 | 4180 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
a687059c | 4181 | } |
b28d0864 | 4182 | else if (PL_uid) { /* oops, mustn't run as root */ |
dcd07940 | 4183 | # ifdef HAS_SETEUID |
b28d0864 | 4184 | (void)seteuid((Uid_t)PL_uid); |
dcd07940 DM |
4185 | # else |
4186 | # ifdef HAS_SETREUID | |
b28d0864 | 4187 | (void)setreuid((Uid_t)-1,(Uid_t)PL_uid); |
dcd07940 DM |
4188 | # else |
4189 | # ifdef HAS_SETRESUID | |
b28d0864 | 4190 | (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1); |
dcd07940 | 4191 | # else |
b28d0864 | 4192 | PerlProc_setuid((Uid_t)PL_uid); |
dcd07940 DM |
4193 | # endif |
4194 | # endif | |
4195 | # endif | |
b28d0864 | 4196 | if (PerlProc_geteuid() != PL_uid) |
cea2e8a9 | 4197 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
83025b21 | 4198 | } |
748a9306 | 4199 | init_ids(); |
b28d0864 | 4200 | if (!cando(S_IXUSR,TRUE,&PL_statbuf)) |
ae3f3efd | 4201 | Perl_croak(aTHX_ "Effective UID cannot exec script\n"); /* they can't do this */ |
13281fa4 | 4202 | } |
dcd07940 | 4203 | # ifdef IAMSUID |
f20b2998 | 4204 | else if (fdscript < 0 || !suidscript) |
ae3f3efd PS |
4205 | /* PSz 13 Nov 03 Caught elsewhere, useless(?!) here */ |
4206 | Perl_croak(aTHX_ "(suid) fdscript needed in suidperl\n"); | |
e57400b1 | 4207 | else { |
ae3f3efd PS |
4208 | /* PSz 16 Sep 03 Keep neat error message */ |
4209 | Perl_croak(aTHX_ "Script is not setuid/setgid in suidperl\n"); | |
e57400b1 | 4210 | } |
96436eeb | 4211 | |
4212 | /* We absolutely must clear out any saved ids here, so we */ | |
4213 | /* exec the real perl, substituting fd script for scriptname. */ | |
4214 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ | |
ae3f3efd PS |
4215 | /* |
4216 | * It might be thought that using setresgid and/or setresuid (changed to | |
4217 | * set the saved IDs) above might obviate the need to exec, and we could | |
4218 | * go on to "do the perl thing". | |
4219 | * | |
4220 | * Is there such a thing as "saved GID", and is that set for setuid (but | |
4221 | * not setgid) execution like suidperl? Without exec, it would not be | |
4222 | * cleared for setuid (but not setgid) scripts (or might need a dummy | |
4223 | * setresgid). | |
4224 | * | |
4225 | * We need suidperl to do the exact same argument checking that perl | |
4226 | * does. Thus it cannot be very small; while it could be significantly | |
4227 | * smaller, it is safer (simpler?) to make it essentially the same | |
4228 | * binary as perl (but they are not identical). - Maybe could defer that | |
4229 | * check to the invoked perl, and suidperl be a tiny wrapper instead; | |
4230 | * but prefer to do thorough checks in suidperl itself. Such deferral | |
4231 | * would make suidperl security rely on perl, a design no-no. | |
4232 | * | |
4233 | * Setuid things should be short and simple, thus easy to understand and | |
4234 | * verify. They should do their "own thing", without influence by | |
4235 | * attackers. It may help if their internal execution flow is fixed, | |
4236 | * regardless of platform: it may be best to exec anyway. | |
4237 | * | |
4238 | * Suidperl should at least be conceptually simple: a wrapper only, | |
4239 | * never to do any real perl. Maybe we should put | |
4240 | * #ifdef IAMSUID | |
4241 | * Perl_croak(aTHX_ "Suidperl should never do real perl\n"); | |
4242 | * #endif | |
4243 | * into the perly bits. | |
4244 | */ | |
2f9285f8 DM |
4245 | PerlIO_rewind(rsfp); |
4246 | PerlLIO_lseek(PerlIO_fileno(rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
ae3f3efd PS |
4247 | /* PSz 11 Nov 03 |
4248 | * Keep original arguments: suidperl already has fd script. | |
4249 | */ | |
dcd07940 | 4250 | # if defined(HAS_FCNTL) && defined(F_SETFD) |
2f9285f8 | 4251 | fcntl(PerlIO_fileno(rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
dcd07940 | 4252 | # endif |
b35112e7 | 4253 | PERL_FPU_PRE_EXEC |
a7cb1f99 | 4254 | PerlProc_execv(Perl_form(aTHX_ "%s/perl"PERL_FS_VER_FMT, BIN_EXP, |
273cf8d1 GS |
4255 | (int)PERL_REVISION, (int)PERL_VERSION, |
4256 | (int)PERL_SUBVERSION), PL_origargv);/* try again */ | |
b35112e7 | 4257 | PERL_FPU_POST_EXEC |
ae3f3efd | 4258 | Perl_croak(aTHX_ "Can't do setuid (suidperl cannot exec perl)\n"); |
dcd07940 | 4259 | # endif /* IAMSUID */ |
ec2019ad NC |
4260 | } |
4261 | ||
a687059c | 4262 | #else /* !DOSUID */ |
ec2019ad NC |
4263 | |
4264 | # ifdef SETUID_SCRIPTS_ARE_SECURE_NOW | |
4265 | /* Don't even need this function. */ | |
4266 | # else | |
4267 | STATIC void | |
4268 | S_validate_suid(pTHX_ PerlIO *rsfp) | |
4269 | { | |
7918f24d NC |
4270 | PERL_ARGS_ASSERT_VALIDATE_SUID; |
4271 | ||
3280af22 | 4272 | if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */ |
a2e578da MHM |
4273 | dVAR; |
4274 | ||
2f9285f8 | 4275 | PerlLIO_fstat(PerlIO_fileno(rsfp),&PL_statbuf); /* may be either wrapped or real suid */ |
b28d0864 | 4276 | if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID) |
a687059c | 4277 | || |
b28d0864 | 4278 | (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID) |
a687059c | 4279 | ) |
b28d0864 | 4280 | if (!PL_do_undump) |
cea2e8a9 | 4281 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c | 4282 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
a687059c | 4283 | /* not set-id, must be wrapped */ |
a687059c | 4284 | } |
79072805 | 4285 | } |
ec2019ad NC |
4286 | # endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ |
4287 | #endif /* DOSUID */ | |
13281fa4 | 4288 | |
76e3520e | 4289 | STATIC void |
2f9285f8 | 4290 | S_find_beginning(pTHX_ SV* linestr_sv, PerlIO *rsfp) |
79072805 | 4291 | { |
97aff369 | 4292 | dVAR; |
c7030b81 | 4293 | const char *s; |
dd374669 | 4294 | register const char *s2; |
e55ac0fa HS |
4295 | #ifdef MACOS_TRADITIONAL |
4296 | int maclines = 0; | |
4297 | #endif | |
33b78306 | 4298 | |
7918f24d NC |
4299 | PERL_ARGS_ASSERT_FIND_BEGINNING; |
4300 | ||
33b78306 LW |
4301 | /* skip forward in input to the real script? */ |
4302 | ||
bf4acbe4 | 4303 | #ifdef MACOS_TRADITIONAL |
084592ab | 4304 | /* Since the Mac OS does not honor #! arguments for us, we do it ourselves */ |
ac27b0f5 | 4305 | |
bf4acbe4 | 4306 | while (PL_doextract || gMacPerl_AlwaysExtract) { |
2f9285f8 | 4307 | if ((s = sv_gets(linestr_sv, rsfp, 0)) == NULL) { |
bf4acbe4 GS |
4308 | if (!gMacPerl_AlwaysExtract) |
4309 | Perl_croak(aTHX_ "No Perl script found in input\n"); | |
e55ac0fa | 4310 | |
bf4acbe4 GS |
4311 | if (PL_doextract) /* require explicit override ? */ |
4312 | if (!OverrideExtract(PL_origfilename)) | |
4313 | Perl_croak(aTHX_ "User aborted script\n"); | |
4314 | else | |
4315 | PL_doextract = FALSE; | |
e55ac0fa | 4316 | |
bf4acbe4 | 4317 | /* Pater peccavi, file does not have #! */ |
2f9285f8 | 4318 | PerlIO_rewind(rsfp); |
e55ac0fa | 4319 | |
bf4acbe4 GS |
4320 | break; |
4321 | } | |
4322 | #else | |
3280af22 | 4323 | while (PL_doextract) { |
2f9285f8 | 4324 | if ((s = sv_gets(linestr_sv, rsfp, 0)) == NULL) |
cea2e8a9 | 4325 | Perl_croak(aTHX_ "No Perl script found in input\n"); |
bf4acbe4 | 4326 | #endif |
4f0c37ba IZ |
4327 | s2 = s; |
4328 | if (*s == '#' && s[1] == '!' && ((s = instr(s,"perl")) || (s = instr(s2,"PERL")))) { | |
2f9285f8 | 4329 | PerlIO_ungetc(rsfp, '\n'); /* to keep line count right */ |
3280af22 | 4330 | PL_doextract = FALSE; |
6e72f9df | 4331 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
4332 | s2 = s; | |
4333 | while (*s == ' ' || *s == '\t') s++; | |
4334 | if (*s++ == '-') { | |
3792a11b NC |
4335 | while (isDIGIT(s2[-1]) || s2[-1] == '-' || s2[-1] == '.' |
4336 | || s2[-1] == '_') s2--; | |
6e72f9df | 4337 | if (strnEQ(s2-4,"perl",4)) |
97bd5664 | 4338 | while ((s = moreswitches(s))) |
155aba94 | 4339 | ; |
33b78306 | 4340 | } |
95e8664e | 4341 | #ifdef MACOS_TRADITIONAL |
e55ac0fa HS |
4342 | /* We are always searching for the #!perl line in MacPerl, |
4343 | * so if we find it, still keep the line count correct | |
4344 | * by counting lines we already skipped over | |
4345 | */ | |
4346 | for (; maclines > 0 ; maclines--) | |
2f9285f8 | 4347 | PerlIO_ungetc(rsfp, '\n'); |
e55ac0fa | 4348 | |
95e8664e | 4349 | break; |
e55ac0fa HS |
4350 | |
4351 | /* gMacPerl_AlwaysExtract is false in MPW tool */ | |
4352 | } else if (gMacPerl_AlwaysExtract) { | |
4353 | ++maclines; | |
95e8664e | 4354 | #endif |
83025b21 LW |
4355 | } |
4356 | } | |
4357 | } | |
4358 | ||
afe37c7d | 4359 | |
76e3520e | 4360 | STATIC void |
cea2e8a9 | 4361 | S_init_ids(pTHX) |
352d5a3a | 4362 | { |
97aff369 | 4363 | dVAR; |
d8eceb89 JH |
4364 | PL_uid = PerlProc_getuid(); |
4365 | PL_euid = PerlProc_geteuid(); | |
4366 | PL_gid = PerlProc_getgid(); | |
4367 | PL_egid = PerlProc_getegid(); | |
748a9306 | 4368 | #ifdef VMS |
b28d0864 NIS |
4369 | PL_uid |= PL_gid << 16; |
4370 | PL_euid |= PL_egid << 16; | |
748a9306 | 4371 | #endif |
22f7c9c9 JH |
4372 | /* Should not happen: */ |
4373 | CHECK_MALLOC_TAINT(PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
3280af22 | 4374 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
ae3f3efd PS |
4375 | /* BUG */ |
4376 | /* PSz 27 Feb 04 | |
4377 | * Should go by suidscript, not uid!=euid: why disallow | |
4378 | * system("ls") in scripts run from setuid things? | |
4379 | * Or, is this run before we check arguments and set suidscript? | |
4380 | * What about SETUID_SCRIPTS_ARE_SECURE_NOW: could we use fdscript then? | |
4381 | * (We never have suidscript, can we be sure to have fdscript?) | |
4382 | * Or must then go by UID checks? See comments in forbid_setid also. | |
4383 | */ | |
748a9306 | 4384 | } |
79072805 | 4385 | |
a0643315 JH |
4386 | /* This is used very early in the lifetime of the program, |
4387 | * before even the options are parsed, so PL_tainting has | |
b0891165 | 4388 | * not been initialized properly. */ |
af419de7 | 4389 | bool |
8f42b153 | 4390 | Perl_doing_taint(int argc, char *argv[], char *envp[]) |
22f7c9c9 | 4391 | { |
c3446a78 JH |
4392 | #ifndef PERL_IMPLICIT_SYS |
4393 | /* If we have PERL_IMPLICIT_SYS we can't call getuid() et alia | |
4394 | * before we have an interpreter-- and the whole point of this | |
4395 | * function is to be called at such an early stage. If you are on | |
4396 | * a system with PERL_IMPLICIT_SYS but you do have a concept of | |
4397 | * "tainted because running with altered effective ids', you'll | |
4398 | * have to add your own checks somewhere in here. The two most | |
4399 | * known samples of 'implicitness' are Win32 and NetWare, neither | |
4400 | * of which has much of concept of 'uids'. */ | |
af419de7 | 4401 | int uid = PerlProc_getuid(); |
22f7c9c9 | 4402 | int euid = PerlProc_geteuid(); |
af419de7 | 4403 | int gid = PerlProc_getgid(); |
22f7c9c9 | 4404 | int egid = PerlProc_getegid(); |
6867be6d | 4405 | (void)envp; |
22f7c9c9 JH |
4406 | |
4407 | #ifdef VMS | |
af419de7 | 4408 | uid |= gid << 16; |
22f7c9c9 JH |
4409 | euid |= egid << 16; |
4410 | #endif | |
4411 | if (uid && (euid != uid || egid != gid)) | |
4412 | return 1; | |
c3446a78 | 4413 | #endif /* !PERL_IMPLICIT_SYS */ |
af419de7 JH |
4414 | /* This is a really primitive check; environment gets ignored only |
4415 | * if -T are the first chars together; otherwise one gets | |
4416 | * "Too late" message. */ | |
22f7c9c9 JH |
4417 | if ( argc > 1 && argv[1][0] == '-' |
4418 | && (argv[1][1] == 't' || argv[1][1] == 'T') ) | |
4419 | return 1; | |
4420 | return 0; | |
4421 | } | |
22f7c9c9 | 4422 | |
d0bafe7e NC |
4423 | /* Passing the flag as a single char rather than a string is a slight space |
4424 | optimisation. The only message that isn't /^-.$/ is | |
4425 | "program input from stdin", which is substituted in place of '\0', which | |
4426 | could never be a command line flag. */ | |
76e3520e | 4427 | STATIC void |
f20b2998 | 4428 | S_forbid_setid(pTHX_ const char flag, const bool suidscript) /* g */ |
bbce6d69 | 4429 | { |
97aff369 | 4430 | dVAR; |
d0bafe7e NC |
4431 | char string[3] = "-x"; |
4432 | const char *message = "program input from stdin"; | |
4433 | ||
4434 | if (flag) { | |
4435 | string[1] = flag; | |
4436 | message = string; | |
4437 | } | |
4438 | ||
ae3f3efd | 4439 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
3280af22 | 4440 | if (PL_euid != PL_uid) |
d0bafe7e | 4441 | Perl_croak(aTHX_ "No %s allowed while running setuid", message); |
3280af22 | 4442 | if (PL_egid != PL_gid) |
d0bafe7e | 4443 | Perl_croak(aTHX_ "No %s allowed while running setgid", message); |
ae3f3efd PS |
4444 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ |
4445 | /* PSz 29 Feb 04 | |
4446 | * Checks for UID/GID above "wrong": why disallow | |
4447 | * perl -e 'print "Hello\n"' | |
4448 | * from within setuid things?? Simply drop them: replaced by | |
4449 | * fdscript/suidscript and #ifdef IAMSUID checks below. | |
4450 | * | |
4451 | * This may be too late for command-line switches. Will catch those on | |
4452 | * the #! line, after finding the script name and setting up | |
4453 | * fdscript/suidscript. Note that suidperl does not get around to | |
4454 | * parsing (and checking) the switches on the #! line, but checks that | |
4455 | * the two sets are identical. | |
4456 | * | |
4457 | * With SETUID_SCRIPTS_ARE_SECURE_NOW, could we use fdscript, also or | |
4458 | * instead, or would that be "too late"? (We never have suidscript, can | |
4459 | * we be sure to have fdscript?) | |
4460 | * | |
4461 | * Catch things with suidscript (in descendant of suidperl), even with | |
4462 | * right UID/GID. Was already checked in suidperl, with #ifdef IAMSUID, | |
4463 | * below; but I am paranoid. | |
4464 | * | |
4465 | * Also see comments about root running a setuid script, elsewhere. | |
4466 | */ | |
f20b2998 | 4467 | if (suidscript) |
d0bafe7e | 4468 | Perl_croak(aTHX_ "No %s allowed with (suid) fdscript", message); |
ae3f3efd PS |
4469 | #ifdef IAMSUID |
4470 | /* PSz 11 Nov 03 Catch it in suidperl, always! */ | |
d0bafe7e | 4471 | Perl_croak(aTHX_ "No %s allowed in suidperl", message); |
ae3f3efd | 4472 | #endif /* IAMSUID */ |
bbce6d69 | 4473 | } |
4474 | ||
1ee4443e IZ |
4475 | void |
4476 | Perl_init_debugger(pTHX) | |
748a9306 | 4477 | { |
97aff369 | 4478 | dVAR; |
c4420975 | 4479 | HV * const ostash = PL_curstash; |
1ee4443e | 4480 | |
3280af22 | 4481 | PL_curstash = PL_debstash; |
5c1737d1 NC |
4482 | PL_dbargs = GvAV(gv_AVadd((gv_fetchpvs("DB::args", GV_ADDMULTI, |
4483 | SVt_PVAV)))); | |
3280af22 | 4484 | AvREAL_off(PL_dbargs); |
5c1737d1 NC |
4485 | PL_DBgv = gv_fetchpvs("DB::DB", GV_ADDMULTI, SVt_PVGV); |
4486 | PL_DBline = gv_fetchpvs("DB::dbline", GV_ADDMULTI, SVt_PVAV); | |
4487 | PL_DBsub = gv_HVadd(gv_fetchpvs("DB::sub", GV_ADDMULTI, SVt_PVHV)); | |
4488 | PL_DBsingle = GvSV((gv_fetchpvs("DB::single", GV_ADDMULTI, SVt_PV))); | |
ac27b0f5 | 4489 | sv_setiv(PL_DBsingle, 0); |
5c1737d1 | 4490 | PL_DBtrace = GvSV((gv_fetchpvs("DB::trace", GV_ADDMULTI, SVt_PV))); |
ac27b0f5 | 4491 | sv_setiv(PL_DBtrace, 0); |
5c1737d1 | 4492 | PL_DBsignal = GvSV((gv_fetchpvs("DB::signal", GV_ADDMULTI, SVt_PV))); |
ac27b0f5 | 4493 | sv_setiv(PL_DBsignal, 0); |
1ee4443e | 4494 | PL_curstash = ostash; |
352d5a3a LW |
4495 | } |
4496 | ||
2ce36478 SM |
4497 | #ifndef STRESS_REALLOC |
4498 | #define REASONABLE(size) (size) | |
4499 | #else | |
4500 | #define REASONABLE(size) (1) /* unreasonable */ | |
4501 | #endif | |
4502 | ||
11343788 | 4503 | void |
cea2e8a9 | 4504 | Perl_init_stacks(pTHX) |
79072805 | 4505 | { |
97aff369 | 4506 | dVAR; |
e336de0d | 4507 | /* start with 128-item stack and 8K cxstack */ |
3280af22 | 4508 | PL_curstackinfo = new_stackinfo(REASONABLE(128), |
e336de0d | 4509 | REASONABLE(8192/sizeof(PERL_CONTEXT) - 1)); |
3280af22 NIS |
4510 | PL_curstackinfo->si_type = PERLSI_MAIN; |
4511 | PL_curstack = PL_curstackinfo->si_stack; | |
4512 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ | |
79072805 | 4513 | |
3280af22 NIS |
4514 | PL_stack_base = AvARRAY(PL_curstack); |
4515 | PL_stack_sp = PL_stack_base; | |
4516 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
8990e307 | 4517 | |
a02a5408 | 4518 | Newx(PL_tmps_stack,REASONABLE(128),SV*); |
3280af22 NIS |
4519 | PL_tmps_floor = -1; |
4520 | PL_tmps_ix = -1; | |
4521 | PL_tmps_max = REASONABLE(128); | |
8990e307 | 4522 | |
a02a5408 | 4523 | Newx(PL_markstack,REASONABLE(32),I32); |
3280af22 NIS |
4524 | PL_markstack_ptr = PL_markstack; |
4525 | PL_markstack_max = PL_markstack + REASONABLE(32); | |
79072805 | 4526 | |
ce2f7c3b | 4527 | SET_MARK_OFFSET; |
e336de0d | 4528 | |
a02a5408 | 4529 | Newx(PL_scopestack,REASONABLE(32),I32); |
3280af22 NIS |
4530 | PL_scopestack_ix = 0; |
4531 | PL_scopestack_max = REASONABLE(32); | |
79072805 | 4532 | |
a02a5408 | 4533 | Newx(PL_savestack,REASONABLE(128),ANY); |
3280af22 NIS |
4534 | PL_savestack_ix = 0; |
4535 | PL_savestack_max = REASONABLE(128); | |
378cc40b | 4536 | } |
33b78306 | 4537 | |
2ce36478 SM |
4538 | #undef REASONABLE |
4539 | ||
76e3520e | 4540 | STATIC void |
cea2e8a9 | 4541 | S_nuke_stacks(pTHX) |
6e72f9df | 4542 | { |
97aff369 | 4543 | dVAR; |
3280af22 NIS |
4544 | while (PL_curstackinfo->si_next) |
4545 | PL_curstackinfo = PL_curstackinfo->si_next; | |
4546 | while (PL_curstackinfo) { | |
4547 | PERL_SI *p = PL_curstackinfo->si_prev; | |
bac4b2ad | 4548 | /* curstackinfo->si_stack got nuked by sv_free_arenas() */ |
3280af22 NIS |
4549 | Safefree(PL_curstackinfo->si_cxstack); |
4550 | Safefree(PL_curstackinfo); | |
4551 | PL_curstackinfo = p; | |
e336de0d | 4552 | } |
3280af22 NIS |
4553 | Safefree(PL_tmps_stack); |
4554 | Safefree(PL_markstack); | |
4555 | Safefree(PL_scopestack); | |
4556 | Safefree(PL_savestack); | |
378cc40b | 4557 | } |
33b78306 | 4558 | |
8990e307 | 4559 | |
76e3520e | 4560 | STATIC void |
cea2e8a9 | 4561 | S_init_predump_symbols(pTHX) |
45d8adaa | 4562 | { |
97aff369 | 4563 | dVAR; |
93a17b20 | 4564 | GV *tmpgv; |
af8c498a | 4565 | IO *io; |
79072805 | 4566 | |
64ace3f8 | 4567 | sv_setpvs(get_sv("\"", GV_ADD), " "); |
e23d9e2f CS |
4568 | PL_ofsgv = (GV*)SvREFCNT_inc(gv_fetchpvs(",", GV_ADD|GV_NOTQUAL, SVt_PV)); |
4569 | ||
fafc274c | 4570 | PL_stdingv = gv_fetchpvs("STDIN", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
3280af22 | 4571 | GvMULTI_on(PL_stdingv); |
af8c498a | 4572 | io = GvIOp(PL_stdingv); |
a04651f4 | 4573 | IoTYPE(io) = IoTYPE_RDONLY; |
af8c498a | 4574 | IoIFP(io) = PerlIO_stdin(); |
fafc274c | 4575 | tmpgv = gv_fetchpvs("stdin", GV_ADD|GV_NOTQUAL, SVt_PV); |
a5f75d66 | 4576 | GvMULTI_on(tmpgv); |
a45c7426 | 4577 | GvIOp(tmpgv) = MUTABLE_IO(SvREFCNT_inc_simple(io)); |
79072805 | 4578 | |
fafc274c | 4579 | tmpgv = gv_fetchpvs("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
a5f75d66 | 4580 | GvMULTI_on(tmpgv); |
af8c498a | 4581 | io = GvIOp(tmpgv); |
a04651f4 | 4582 | IoTYPE(io) = IoTYPE_WRONLY; |
af8c498a | 4583 | IoOFP(io) = IoIFP(io) = PerlIO_stdout(); |
4633a7c4 | 4584 | setdefout(tmpgv); |
fafc274c | 4585 | tmpgv = gv_fetchpvs("stdout", GV_ADD|GV_NOTQUAL, SVt_PV); |
a5f75d66 | 4586 | GvMULTI_on(tmpgv); |
a45c7426 | 4587 | GvIOp(tmpgv) = MUTABLE_IO(SvREFCNT_inc_simple(io)); |
79072805 | 4588 | |
fafc274c | 4589 | PL_stderrgv = gv_fetchpvs("STDERR", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
bf49b057 GS |
4590 | GvMULTI_on(PL_stderrgv); |
4591 | io = GvIOp(PL_stderrgv); | |
a04651f4 | 4592 | IoTYPE(io) = IoTYPE_WRONLY; |
af8c498a | 4593 | IoOFP(io) = IoIFP(io) = PerlIO_stderr(); |
fafc274c | 4594 | tmpgv = gv_fetchpvs("stderr", GV_ADD|GV_NOTQUAL, SVt_PV); |
a5f75d66 | 4595 | GvMULTI_on(tmpgv); |
a45c7426 | 4596 | GvIOp(tmpgv) = MUTABLE_IO(SvREFCNT_inc_simple(io)); |
79072805 | 4597 | |
561b68a9 | 4598 | PL_statname = newSV(0); /* last filename we did stat on */ |
ab821d7f | 4599 | |
43c5f42d | 4600 | Safefree(PL_osname); |
bf4acbe4 | 4601 | PL_osname = savepv(OSNAME); |
79072805 | 4602 | } |
33b78306 | 4603 | |
a11ec5a9 | 4604 | void |
8f42b153 | 4605 | Perl_init_argv_symbols(pTHX_ register int argc, register char **argv) |
33b78306 | 4606 | { |
97aff369 | 4607 | dVAR; |
7918f24d NC |
4608 | |
4609 | PERL_ARGS_ASSERT_INIT_ARGV_SYMBOLS; | |
4610 | ||
79072805 | 4611 | argc--,argv++; /* skip name of script */ |
3280af22 | 4612 | if (PL_doswitches) { |
79072805 | 4613 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
aec46f14 | 4614 | char *s; |
79072805 LW |
4615 | if (!argv[0][1]) |
4616 | break; | |
379d538a | 4617 | if (argv[0][1] == '-' && !argv[0][2]) { |
79072805 LW |
4618 | argc--,argv++; |
4619 | break; | |
4620 | } | |
155aba94 | 4621 | if ((s = strchr(argv[0], '='))) { |
b3d904f3 NC |
4622 | const char *const start_name = argv[0] + 1; |
4623 | sv_setpv(GvSV(gv_fetchpvn_flags(start_name, s - start_name, | |
4624 | TRUE, SVt_PV)), s + 1); | |
79072805 LW |
4625 | } |
4626 | else | |
71315bf2 | 4627 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1, GV_ADD, SVt_PV)),1); |
fe14fcc3 | 4628 | } |
79072805 | 4629 | } |
fafc274c | 4630 | if ((PL_argvgv = gv_fetchpvs("ARGV", GV_ADD|GV_NOTQUAL, SVt_PVAV))) { |
a11ec5a9 RGS |
4631 | GvMULTI_on(PL_argvgv); |
4632 | (void)gv_AVadd(PL_argvgv); | |
4633 | av_clear(GvAVn(PL_argvgv)); | |
4634 | for (; argc > 0; argc--,argv++) { | |
aec46f14 | 4635 | SV * const sv = newSVpv(argv[0],0); |
a11ec5a9 | 4636 | av_push(GvAVn(PL_argvgv),sv); |
ce81ff12 JH |
4637 | if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) { |
4638 | if (PL_unicode & PERL_UNICODE_ARGV_FLAG) | |
4639 | SvUTF8_on(sv); | |
4640 | } | |
a05d7ebb JH |
4641 | if (PL_unicode & PERL_UNICODE_WIDESYSCALLS_FLAG) /* Sarathy? */ |
4642 | (void)sv_utf8_decode(sv); | |
a11ec5a9 RGS |
4643 | } |
4644 | } | |
4645 | } | |
4646 | ||
4647 | STATIC void | |
4648 | S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env) | |
4649 | { | |
27da23d5 | 4650 | dVAR; |
a11ec5a9 | 4651 | GV* tmpgv; |
a11ec5a9 | 4652 | |
7918f24d NC |
4653 | PERL_ARGS_ASSERT_INIT_POSTDUMP_SYMBOLS; |
4654 | ||
b9f83d2f | 4655 | PL_toptarget = newSV_type(SVt_PVFM); |
76f68e9b | 4656 | sv_setpvs(PL_toptarget, ""); |
b9f83d2f | 4657 | PL_bodytarget = newSV_type(SVt_PVFM); |
76f68e9b | 4658 | sv_setpvs(PL_bodytarget, ""); |
3280af22 | 4659 | PL_formtarget = PL_bodytarget; |
79072805 | 4660 | |
bbce6d69 | 4661 | TAINT; |
a11ec5a9 RGS |
4662 | |
4663 | init_argv_symbols(argc,argv); | |
4664 | ||
fafc274c | 4665 | if ((tmpgv = gv_fetchpvs("0", GV_ADD|GV_NOTQUAL, SVt_PV))) { |
bf4acbe4 GS |
4666 | #ifdef MACOS_TRADITIONAL |
4667 | /* $0 is not majick on a Mac */ | |
4668 | sv_setpv(GvSV(tmpgv),MacPerl_MPWFileName(PL_origfilename)); | |
4669 | #else | |
3280af22 | 4670 | sv_setpv(GvSV(tmpgv),PL_origfilename); |
1f4e14d1 NC |
4671 | { |
4672 | GV * const gv = gv_fetchpv("0", GV_ADD, SVt_PV); | |
4673 | if (gv) | |
4674 | sv_magic(GvSV(gv), MUTABLE_SV(gv), PERL_MAGIC_sv, "0", 1); | |
4675 | } | |
bf4acbe4 | 4676 | #endif |
79072805 | 4677 | } |
fafc274c | 4678 | if ((PL_envgv = gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV))) { |
79072805 | 4679 | HV *hv; |
e17132c1 | 4680 | bool env_is_not_environ; |
3280af22 NIS |
4681 | GvMULTI_on(PL_envgv); |
4682 | hv = GvHVn(PL_envgv); | |
a0714e2c | 4683 | hv_magic(hv, NULL, PERL_MAGIC_env); |
2f42fcb0 | 4684 | #ifndef PERL_MICRO |
fa6a1c44 | 4685 | #ifdef USE_ENVIRON_ARRAY |
4633a7c4 LW |
4686 | /* Note that if the supplied env parameter is actually a copy |
4687 | of the global environ then it may now point to free'd memory | |
4688 | if the environment has been modified since. To avoid this | |
4689 | problem we treat env==NULL as meaning 'use the default' | |
4690 | */ | |
4691 | if (!env) | |
4692 | env = environ; | |
e17132c1 JD |
4693 | env_is_not_environ = env != environ; |
4694 | if (env_is_not_environ | |
4efc5df6 GS |
4695 | # ifdef USE_ITHREADS |
4696 | && PL_curinterp == aTHX | |
4697 | # endif | |
4698 | ) | |
4699 | { | |
bd61b366 | 4700 | environ[0] = NULL; |
4efc5df6 | 4701 | } |
9b4eeda5 | 4702 | if (env) { |
9d27dca9 | 4703 | char *s, *old_var; |
27da23d5 | 4704 | SV *sv; |
764df951 | 4705 | for (; *env; env++) { |
9d27dca9 MT |
4706 | old_var = *env; |
4707 | ||
4708 | if (!(s = strchr(old_var,'=')) || s == old_var) | |
79072805 | 4709 | continue; |
9d27dca9 | 4710 | |
7da0e383 | 4711 | #if defined(MSDOS) && !defined(DJGPP) |
61968511 | 4712 | *s = '\0'; |
9d27dca9 | 4713 | (void)strupr(old_var); |
61968511 | 4714 | *s = '='; |
137443ea | 4715 | #endif |
61968511 | 4716 | sv = newSVpv(s+1, 0); |
9d27dca9 | 4717 | (void)hv_store(hv, old_var, s - old_var, sv, 0); |
e17132c1 | 4718 | if (env_is_not_environ) |
61968511 | 4719 | mg_set(sv); |
764df951 | 4720 | } |
9b4eeda5 | 4721 | } |
103a7189 | 4722 | #endif /* USE_ENVIRON_ARRAY */ |
2f42fcb0 | 4723 | #endif /* !PERL_MICRO */ |
79072805 | 4724 | } |
bbce6d69 | 4725 | TAINT_NOT; |
fafc274c | 4726 | if ((tmpgv = gv_fetchpvs("$", GV_ADD|GV_NOTQUAL, SVt_PV))) { |
306196c3 | 4727 | SvREADONLY_off(GvSV(tmpgv)); |
7766f137 | 4728 | sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid()); |
306196c3 MS |
4729 | SvREADONLY_on(GvSV(tmpgv)); |
4730 | } | |
4d76a344 RGS |
4731 | #ifdef THREADS_HAVE_PIDS |
4732 | PL_ppid = (IV)getppid(); | |
4733 | #endif | |
2710853f MJD |
4734 | |
4735 | /* touch @F array to prevent spurious warnings 20020415 MJD */ | |
4736 | if (PL_minus_a) { | |
cbfd0a87 | 4737 | (void) get_av("main::F", GV_ADD | GV_ADDMULTI); |
2710853f | 4738 | } |
33b78306 | 4739 | } |
34de22dd | 4740 | |
76e3520e | 4741 | STATIC void |
cea2e8a9 | 4742 | S_init_perllib(pTHX) |
34de22dd | 4743 | { |
97aff369 | 4744 | dVAR; |
85e6fe83 | 4745 | char *s; |
3280af22 | 4746 | if (!PL_tainting) { |
552a7a9b | 4747 | #ifndef VMS |
76e3520e | 4748 | s = PerlEnv_getenv("PERL5LIB"); |
88f5bc07 AB |
4749 | /* |
4750 | * It isn't possible to delete an environment variable with | |
42a3dd3a RGS |
4751 | * PERL_USE_SAFE_PUTENV set unless unsetenv() is also available, so in that |
4752 | * case we treat PERL5LIB as undefined if it has a zero-length value. | |
88f5bc07 AB |
4753 | */ |
4754 | #if defined(PERL_USE_SAFE_PUTENV) && ! defined(HAS_UNSETENV) | |
4755 | if (s && *s != '\0') | |
4756 | #else | |
85e6fe83 | 4757 | if (s) |
88f5bc07 | 4758 | #endif |
20189146 | 4759 | incpush(s, TRUE, TRUE, TRUE, FALSE, FALSE); |
85e6fe83 | 4760 | else |
20189146 | 4761 | incpush(PerlEnv_getenv("PERLLIB"), FALSE, FALSE, TRUE, FALSE, FALSE); |
552a7a9b | 4762 | #else /* VMS */ |
4763 | /* Treat PERL5?LIB as a possible search list logical name -- the | |
4764 | * "natural" VMS idiom for a Unix path string. We allow each | |
4765 | * element to be a set of |-separated directories for compatibility. | |
4766 | */ | |
4767 | char buf[256]; | |
4768 | int idx = 0; | |
4769 | if (my_trnlnm("PERL5LIB",buf,0)) | |
20189146 | 4770 | do { incpush(buf,TRUE,TRUE,TRUE,FALSE, FALSE); } while (my_trnlnm("PERL5LIB",buf,++idx)); |
552a7a9b | 4771 | else |
20189146 | 4772 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE,FALSE,TRUE,FALSE, FALSE); |
552a7a9b | 4773 | #endif /* VMS */ |
85e6fe83 | 4774 | } |
34de22dd | 4775 | |
c90c0ff4 | 4776 | /* Use the ~-expanded versions of APPLLIB (undocumented), |
65f19062 | 4777 | ARCHLIB PRIVLIB SITEARCH SITELIB VENDORARCH and VENDORLIB |
df5cef82 | 4778 | */ |
4633a7c4 | 4779 | #ifdef APPLLIB_EXP |
20189146 | 4780 | incpush(APPLLIB_EXP, TRUE, TRUE, TRUE, TRUE, FALSE); |
16d20bd9 | 4781 | #endif |
4633a7c4 | 4782 | |
fed7345c | 4783 | #ifdef ARCHLIB_EXP |
20189146 | 4784 | incpush(ARCHLIB_EXP, FALSE, FALSE, TRUE, TRUE, FALSE); |
a0d0e21e | 4785 | #endif |
bf4acbe4 GS |
4786 | #ifdef MACOS_TRADITIONAL |
4787 | { | |
c623ac67 | 4788 | Stat_t tmpstatbuf; |
561b68a9 | 4789 | SV * privdir = newSV(0); |
bf4acbe4 GS |
4790 | char * macperl = PerlEnv_getenv("MACPERL"); |
4791 | ||
4792 | if (!macperl) | |
4793 | macperl = ""; | |
4794 | ||
4795 | Perl_sv_setpvf(aTHX_ privdir, "%slib:", macperl); | |
4796 | if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode)) | |
20189146 | 4797 | incpush(SvPVX(privdir), TRUE, FALSE, TRUE, FALSE, FALSE); |
bf4acbe4 GS |
4798 | Perl_sv_setpvf(aTHX_ privdir, "%ssite_perl:", macperl); |
4799 | if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode)) | |
20189146 | 4800 | incpush(SvPVX(privdir), TRUE, FALSE, TRUE, FALSE, FALSE); |
ac27b0f5 | 4801 | |
bf4acbe4 GS |
4802 | SvREFCNT_dec(privdir); |
4803 | } | |
4804 | if (!PL_tainting) | |
580f5bb2 | 4805 | incpush(":", FALSE, FALSE, FALSE, FALSE, FALSE); |
bf4acbe4 | 4806 | #else |
fed7345c | 4807 | #ifndef PRIVLIB_EXP |
65f19062 | 4808 | # define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" |
34de22dd | 4809 | #endif |
ac27b0f5 | 4810 | #if defined(WIN32) |
20189146 | 4811 | incpush(PRIVLIB_EXP, TRUE, FALSE, TRUE, TRUE, FALSE); |
00dc2f4f | 4812 | #else |
20189146 | 4813 | incpush(PRIVLIB_EXP, FALSE, FALSE, TRUE, TRUE, FALSE); |
00dc2f4f | 4814 | #endif |
4633a7c4 | 4815 | |
65f19062 | 4816 | #ifdef SITEARCH_EXP |
3b290362 GS |
4817 | /* sitearch is always relative to sitelib on Windows for |
4818 | * DLL-based path intuition to work correctly */ | |
4819 | # if !defined(WIN32) | |
20189146 | 4820 | incpush(SITEARCH_EXP, FALSE, FALSE, TRUE, TRUE, FALSE); |
65f19062 GS |
4821 | # endif |
4822 | #endif | |
4823 | ||
4633a7c4 | 4824 | #ifdef SITELIB_EXP |
65f19062 | 4825 | # if defined(WIN32) |
574c798a | 4826 | /* this picks up sitearch as well */ |
20189146 | 4827 | incpush(SITELIB_EXP, TRUE, FALSE, TRUE, TRUE, FALSE); |
65f19062 | 4828 | # else |
20189146 | 4829 | incpush(SITELIB_EXP, FALSE, FALSE, TRUE, TRUE, FALSE); |
65f19062 GS |
4830 | # endif |
4831 | #endif | |
189d1e8d | 4832 | |
c95d0e17 GA |
4833 | #if defined(SITELIB_STEM) && defined(PERL_INC_VERSION_LIST) |
4834 | /* Search for version-specific dirs below here */ | |
20189146 | 4835 | incpush(SITELIB_STEM, FALSE, TRUE, TRUE, TRUE, FALSE); |
81c6dfba | 4836 | #endif |
65f19062 GS |
4837 | |
4838 | #ifdef PERL_VENDORARCH_EXP | |
4ea817c6 | 4839 | /* vendorarch is always relative to vendorlib on Windows for |
3b290362 GS |
4840 | * DLL-based path intuition to work correctly */ |
4841 | # if !defined(WIN32) | |
20189146 | 4842 | incpush(PERL_VENDORARCH_EXP, FALSE, FALSE, TRUE, TRUE, FALSE); |
65f19062 | 4843 | # endif |
4b03c463 | 4844 | #endif |
65f19062 GS |
4845 | |
4846 | #ifdef PERL_VENDORLIB_EXP | |
4847 | # if defined(WIN32) | |
20189146 | 4848 | incpush(PERL_VENDORLIB_EXP, TRUE, FALSE, TRUE, TRUE, FALSE); /* this picks up vendorarch as well */ |
65f19062 | 4849 | # else |
20189146 | 4850 | incpush(PERL_VENDORLIB_EXP, FALSE, FALSE, TRUE, TRUE, FALSE); |
65f19062 | 4851 | # endif |
a3635516 | 4852 | #endif |
65f19062 | 4853 | |
9c901649 RM |
4854 | #if defined(PERL_VENDORLIB_STEM) && defined(PERL_INC_VERSION_LIST) |
4855 | /* Search for version-specific dirs below here */ | |
20189146 | 4856 | incpush(PERL_VENDORLIB_STEM, FALSE, TRUE, TRUE, TRUE, FALSE); |
00dc2f4f | 4857 | #endif |
65f19062 | 4858 | |
3b777bb4 | 4859 | #ifdef PERL_OTHERLIBDIRS |
20189146 | 4860 | incpush(PERL_OTHERLIBDIRS, TRUE, TRUE, TRUE, TRUE, FALSE); |
3b777bb4 GS |
4861 | #endif |
4862 | ||
3280af22 | 4863 | if (!PL_tainting) |
580f5bb2 | 4864 | incpush(".", FALSE, FALSE, FALSE, FALSE, FALSE); |
bf4acbe4 | 4865 | #endif /* MACOS_TRADITIONAL */ |
774d564b | 4866 | } |
4867 | ||
a0fd4948 | 4868 | #if defined(DOSISH) || defined(EPOC) || defined(__SYMBIAN32__) |
774d564b | 4869 | # define PERLLIB_SEP ';' |
4870 | #else | |
4871 | # if defined(VMS) | |
4872 | # define PERLLIB_SEP '|' | |
4873 | # else | |
bf4acbe4 GS |
4874 | # if defined(MACOS_TRADITIONAL) |
4875 | # define PERLLIB_SEP ',' | |
4876 | # else | |
4877 | # define PERLLIB_SEP ':' | |
4878 | # endif | |
774d564b | 4879 | # endif |
4880 | #endif | |
4881 | #ifndef PERLLIB_MANGLE | |
4882 | # define PERLLIB_MANGLE(s,n) (s) | |
ac27b0f5 | 4883 | #endif |
774d564b | 4884 | |
ad17a1ae NC |
4885 | /* Push a directory onto @INC if it exists. |
4886 | Generate a new SV if we do this, to save needing to copy the SV we push | |
4887 | onto @INC */ | |
4888 | STATIC SV * | |
4889 | S_incpush_if_exists(pTHX_ SV *dir) | |
4890 | { | |
97aff369 | 4891 | dVAR; |
ad17a1ae | 4892 | Stat_t tmpstatbuf; |
7918f24d NC |
4893 | |
4894 | PERL_ARGS_ASSERT_INCPUSH_IF_EXISTS; | |
4895 | ||
848ef955 | 4896 | if (PerlLIO_stat(SvPVX_const(dir), &tmpstatbuf) >= 0 && |
ad17a1ae | 4897 | S_ISDIR(tmpstatbuf.st_mode)) { |
e7049783 | 4898 | av_push(GvAVn(PL_incgv), dir); |
561b68a9 | 4899 | dir = newSV(0); |
ad17a1ae NC |
4900 | } |
4901 | return dir; | |
4902 | } | |
4903 | ||
76e3520e | 4904 | STATIC void |
dd374669 | 4905 | S_incpush(pTHX_ const char *dir, bool addsubdirs, bool addoldvers, bool usesep, |
20189146 | 4906 | bool canrelocate, bool unshift) |
774d564b | 4907 | { |
97aff369 | 4908 | dVAR; |
a0714e2c | 4909 | SV *subdir = NULL; |
dd374669 | 4910 | const char *p = dir; |
774d564b | 4911 | |
3b290362 | 4912 | if (!p || !*p) |
774d564b | 4913 | return; |
4914 | ||
9c8a64f0 | 4915 | if (addsubdirs || addoldvers) { |
561b68a9 | 4916 | subdir = newSV(0); |
774d564b | 4917 | } |
4918 | ||
4919 | /* Break at all separators */ | |
4920 | while (p && *p) { | |
561b68a9 | 4921 | SV *libdir = newSV(0); |
e1ec3a88 | 4922 | const char *s; |
774d564b | 4923 | |
4924 | /* skip any consecutive separators */ | |
574c798a SR |
4925 | if (usesep) { |
4926 | while ( *p == PERLLIB_SEP ) { | |
4927 | /* Uncomment the next line for PATH semantics */ | |
396482e1 | 4928 | /* av_push(GvAVn(PL_incgv), newSVpvs(".")); */ |
574c798a SR |
4929 | p++; |
4930 | } | |
774d564b | 4931 | } |
4932 | ||
bd61b366 | 4933 | if ( usesep && (s = strchr(p, PERLLIB_SEP)) != NULL ) { |
774d564b | 4934 | sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)), |
4935 | (STRLEN)(s - p)); | |
4936 | p = s + 1; | |
4937 | } | |
4938 | else { | |
4939 | sv_setpv(libdir, PERLLIB_MANGLE(p, 0)); | |
bd61b366 | 4940 | p = NULL; /* break out */ |
774d564b | 4941 | } |
bf4acbe4 | 4942 | #ifdef MACOS_TRADITIONAL |
e69a2255 JH |
4943 | if (!strchr(SvPVX(libdir), ':')) { |
4944 | char buf[256]; | |
4945 | ||
4946 | sv_setpv(libdir, MacPerl_CanonDir(SvPVX(libdir), buf, 0)); | |
4947 | } | |
bf4acbe4 | 4948 | if (SvPVX(libdir)[SvCUR(libdir)-1] != ':') |
396482e1 | 4949 | sv_catpvs(libdir, ":"); |
bf4acbe4 | 4950 | #endif |
774d564b | 4951 | |
dd374669 AL |
4952 | /* Do the if() outside the #ifdef to avoid warnings about an unused |
4953 | parameter. */ | |
4954 | if (canrelocate) { | |
88fe16b2 NC |
4955 | #ifdef PERL_RELOCATABLE_INC |
4956 | /* | |
4957 | * Relocatable include entries are marked with a leading .../ | |
4958 | * | |
4959 | * The algorithm is | |
4960 | * 0: Remove that leading ".../" | |
4961 | * 1: Remove trailing executable name (anything after the last '/') | |
4962 | * from the perl path to give a perl prefix | |
4963 | * Then | |
4964 | * While the @INC element starts "../" and the prefix ends with a real | |
4965 | * directory (ie not . or ..) chop that real directory off the prefix | |
4966 | * and the leading "../" from the @INC element. ie a logical "../" | |
4967 | * cleanup | |
4968 | * Finally concatenate the prefix and the remainder of the @INC element | |
4969 | * The intent is that /usr/local/bin/perl and .../../lib/perl5 | |
4970 | * generates /usr/local/lib/perl5 | |
4971 | */ | |
890ce7af | 4972 | const char *libpath = SvPVX(libdir); |
88fe16b2 NC |
4973 | STRLEN libpath_len = SvCUR(libdir); |
4974 | if (libpath_len >= 4 && memEQ (libpath, ".../", 4)) { | |
4975 | /* Game on! */ | |
890ce7af | 4976 | SV * const caret_X = get_sv("\030", 0); |
88fe16b2 NC |
4977 | /* Going to use the SV just as a scratch buffer holding a C |
4978 | string: */ | |
4979 | SV *prefix_sv; | |
4980 | char *prefix; | |
4981 | char *lastslash; | |
4982 | ||
4983 | /* $^X is *the* source of taint if tainting is on, hence | |
4984 | SvPOK() won't be true. */ | |
4985 | assert(caret_X); | |
4986 | assert(SvPOKp(caret_X)); | |
a663657d NC |
4987 | prefix_sv = newSVpvn_flags(SvPVX(caret_X), SvCUR(caret_X), |
4988 | SvUTF8(caret_X)); | |
88fe16b2 NC |
4989 | /* Firstly take off the leading .../ |
4990 | If all else fail we'll do the paths relative to the current | |
4991 | directory. */ | |
4992 | sv_chop(libdir, libpath + 4); | |
4993 | /* Don't use SvPV as we're intentionally bypassing taining, | |
4994 | mortal copies that the mg_get of tainting creates, and | |
4995 | corruption that seems to come via the save stack. | |
4996 | I guess that the save stack isn't correctly set up yet. */ | |
4997 | libpath = SvPVX(libdir); | |
4998 | libpath_len = SvCUR(libdir); | |
4999 | ||
5000 | /* This would work more efficiently with memrchr, but as it's | |
5001 | only a GNU extension we'd need to probe for it and | |
5002 | implement our own. Not hard, but maybe not worth it? */ | |
5003 | ||
5004 | prefix = SvPVX(prefix_sv); | |
5005 | lastslash = strrchr(prefix, '/'); | |
5006 | ||
5007 | /* First time in with the *lastslash = '\0' we just wipe off | |
5008 | the trailing /perl from (say) /usr/foo/bin/perl | |
5009 | */ | |
5010 | if (lastslash) { | |
5011 | SV *tempsv; | |
5012 | while ((*lastslash = '\0'), /* Do that, come what may. */ | |
5013 | (libpath_len >= 3 && memEQ(libpath, "../", 3) | |
5014 | && (lastslash = strrchr(prefix, '/')))) { | |
5015 | if (lastslash[1] == '\0' | |
5016 | || (lastslash[1] == '.' | |
5017 | && (lastslash[2] == '/' /* ends "/." */ | |
5018 | || (lastslash[2] == '/' | |
5019 | && lastslash[3] == '/' /* or "/.." */ | |
5020 | )))) { | |
5021 | /* Prefix ends "/" or "/." or "/..", any of which | |
5022 | are fishy, so don't do any more logical cleanup. | |
5023 | */ | |
5024 | break; | |
5025 | } | |
5026 | /* Remove leading "../" from path */ | |
5027 | libpath += 3; | |
5028 | libpath_len -= 3; | |
5029 | /* Next iteration round the loop removes the last | |
5030 | directory name from prefix by writing a '\0' in | |
5031 | the while clause. */ | |
5032 | } | |
5033 | /* prefix has been terminated with a '\0' to the correct | |
5034 | length. libpath points somewhere into the libdir SV. | |
5035 | We need to join the 2 with '/' and drop the result into | |
5036 | libdir. */ | |
5037 | tempsv = Perl_newSVpvf(aTHX_ "%s/%s", prefix, libpath); | |
5038 | SvREFCNT_dec(libdir); | |
5039 | /* And this is the new libdir. */ | |
5040 | libdir = tempsv; | |
5041 | if (PL_tainting && | |
5042 | (PL_uid != PL_euid || PL_gid != PL_egid)) { | |
5043 | /* Need to taint reloccated paths if running set ID */ | |
5044 | SvTAINTED_on(libdir); | |
5045 | } | |
5046 | } | |
5047 | SvREFCNT_dec(prefix_sv); | |
5048 | } | |
88fe16b2 | 5049 | #endif |
dd374669 | 5050 | } |
774d564b | 5051 | /* |
5052 | * BEFORE pushing libdir onto @INC we may first push version- and | |
5053 | * archname-specific sub-directories. | |
5054 | */ | |
9c8a64f0 | 5055 | if (addsubdirs || addoldvers) { |
29d82f8d | 5056 | #ifdef PERL_INC_VERSION_LIST |
8353b874 | 5057 | /* Configure terminates PERL_INC_VERSION_LIST with a NULL */ |
c4420975 AL |
5058 | const char * const incverlist[] = { PERL_INC_VERSION_LIST }; |
5059 | const char * const *incver; | |
29d82f8d | 5060 | #endif |
aa689395 | 5061 | #ifdef VMS |
5062 | char *unix; | |
5063 | STRLEN len; | |
774d564b | 5064 | |
bd61b366 | 5065 | if ((unix = tounixspec_ts(SvPV(libdir,len),NULL)) != NULL) { |
aa689395 | 5066 | len = strlen(unix); |
5067 | while (unix[len-1] == '/') len--; /* Cosmetic */ | |
5068 | sv_usepvn(libdir,unix,len); | |
5069 | } | |
5070 | else | |
bf49b057 | 5071 | PerlIO_printf(Perl_error_log, |
aa689395 | 5072 | "Failed to unixify @INC element \"%s\"\n", |
2d8e6c8d | 5073 | SvPV(libdir,len)); |
aa689395 | 5074 | #endif |
9c8a64f0 | 5075 | if (addsubdirs) { |
bf4acbe4 GS |
5076 | #ifdef MACOS_TRADITIONAL |
5077 | #define PERL_AV_SUFFIX_FMT "" | |
084592ab CN |
5078 | #define PERL_ARCH_FMT "%s:" |
5079 | #define PERL_ARCH_FMT_PATH PERL_FS_VER_FMT PERL_AV_SUFFIX_FMT | |
bf4acbe4 GS |
5080 | #else |
5081 | #define PERL_AV_SUFFIX_FMT "/" | |
5082 | #define PERL_ARCH_FMT "/%s" | |
084592ab | 5083 | #define PERL_ARCH_FMT_PATH PERL_AV_SUFFIX_FMT PERL_FS_VER_FMT |
bf4acbe4 | 5084 | #endif |
9c8a64f0 | 5085 | /* .../version/archname if -d .../version/archname */ |
084592ab | 5086 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH PERL_ARCH_FMT, |
be2597df | 5087 | SVfARG(libdir), |
9c8a64f0 GS |
5088 | (int)PERL_REVISION, (int)PERL_VERSION, |
5089 | (int)PERL_SUBVERSION, ARCHNAME); | |
ad17a1ae | 5090 | subdir = S_incpush_if_exists(aTHX_ subdir); |
4b03c463 | 5091 | |
9c8a64f0 | 5092 | /* .../version if -d .../version */ |
95b63a38 | 5093 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH, |
be2597df | 5094 | SVfARG(libdir), |
9c8a64f0 GS |
5095 | (int)PERL_REVISION, (int)PERL_VERSION, |
5096 | (int)PERL_SUBVERSION); | |
ad17a1ae | 5097 | subdir = S_incpush_if_exists(aTHX_ subdir); |
9c8a64f0 GS |
5098 | |
5099 | /* .../archname if -d .../archname */ | |
95b63a38 | 5100 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, |
be2597df | 5101 | SVfARG(libdir), ARCHNAME); |
ad17a1ae NC |
5102 | subdir = S_incpush_if_exists(aTHX_ subdir); |
5103 | ||
29d82f8d | 5104 | } |
9c8a64f0 | 5105 | |
9c8a64f0 | 5106 | #ifdef PERL_INC_VERSION_LIST |
ccc2aad8 | 5107 | if (addoldvers) { |
9c8a64f0 GS |
5108 | for (incver = incverlist; *incver; incver++) { |
5109 | /* .../xxx if -d .../xxx */ | |
be2597df MHM |
5110 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, |
5111 | SVfARG(libdir), *incver); | |
ad17a1ae | 5112 | subdir = S_incpush_if_exists(aTHX_ subdir); |
9c8a64f0 GS |
5113 | } |
5114 | } | |
29d82f8d | 5115 | #endif |
774d564b | 5116 | } |
5117 | ||
20189146 RGS |
5118 | /* finally add this lib directory at the end of @INC */ |
5119 | if (unshift) { | |
5120 | av_unshift( GvAVn( PL_incgv ), 1 ); | |
5121 | av_store( GvAVn( PL_incgv ), 0, libdir ); | |
5122 | } | |
5123 | else { | |
5124 | av_push(GvAVn(PL_incgv), libdir); | |
5125 | } | |
774d564b | 5126 | } |
ad17a1ae | 5127 | if (subdir) { |
ef97f5b3 | 5128 | assert (SvREFCNT(subdir) == 1); |
ad17a1ae NC |
5129 | SvREFCNT_dec(subdir); |
5130 | } | |
34de22dd | 5131 | } |
93a17b20 | 5132 | |
199100c8 | 5133 | |
93a17b20 | 5134 | void |
864dbfa3 | 5135 | Perl_call_list(pTHX_ I32 oldscope, AV *paramList) |
93a17b20 | 5136 | { |
27da23d5 | 5137 | dVAR; |
971a9dd3 | 5138 | SV *atsv; |
5f40764f | 5139 | volatile const line_t oldline = PL_curcop ? CopLINE(PL_curcop) : 0; |
312caa8e | 5140 | CV *cv; |
22921e25 | 5141 | STRLEN len; |
6224f72b | 5142 | int ret; |
db36c5a1 | 5143 | dJMPENV; |
93a17b20 | 5144 | |
7918f24d NC |
5145 | PERL_ARGS_ASSERT_CALL_LIST; |
5146 | ||
e1ec3a88 | 5147 | while (av_len(paramList) >= 0) { |
ea726b52 | 5148 | cv = MUTABLE_CV(av_shift(paramList)); |
ece599bd RGS |
5149 | if (PL_savebegin) { |
5150 | if (paramList == PL_beginav) { | |
059a8bb7 | 5151 | /* save PL_beginav for compiler */ |
ad64d0ec | 5152 | Perl_av_create_and_push(aTHX_ &PL_beginav_save, MUTABLE_SV(cv)); |
ece599bd RGS |
5153 | } |
5154 | else if (paramList == PL_checkav) { | |
5155 | /* save PL_checkav for compiler */ | |
ad64d0ec | 5156 | Perl_av_create_and_push(aTHX_ &PL_checkav_save, MUTABLE_SV(cv)); |
ece599bd | 5157 | } |
3c10abe3 AG |
5158 | else if (paramList == PL_unitcheckav) { |
5159 | /* save PL_unitcheckav for compiler */ | |
ad64d0ec | 5160 | Perl_av_create_and_push(aTHX_ &PL_unitcheckav_save, MUTABLE_SV(cv)); |
3c10abe3 | 5161 | } |
059a8bb7 | 5162 | } else { |
81d86705 NC |
5163 | if (!PL_madskills) |
5164 | SAVEFREESV(cv); | |
059a8bb7 | 5165 | } |
14dd3ad8 | 5166 | JMPENV_PUSH(ret); |
6224f72b | 5167 | switch (ret) { |
312caa8e | 5168 | case 0: |
81d86705 NC |
5169 | #ifdef PERL_MAD |
5170 | if (PL_madskills) | |
5171 | PL_madskills |= 16384; | |
5172 | #endif | |
d6f07c05 | 5173 | CALL_LIST_BODY(cv); |
81d86705 NC |
5174 | #ifdef PERL_MAD |
5175 | if (PL_madskills) | |
5176 | PL_madskills &= ~16384; | |
5177 | #endif | |
971a9dd3 | 5178 | atsv = ERRSV; |
10516c54 | 5179 | (void)SvPV_const(atsv, len); |
312caa8e CS |
5180 | if (len) { |
5181 | PL_curcop = &PL_compiling; | |
57843af0 | 5182 | CopLINE_set(PL_curcop, oldline); |
312caa8e | 5183 | if (paramList == PL_beginav) |
396482e1 | 5184 | sv_catpvs(atsv, "BEGIN failed--compilation aborted"); |
312caa8e | 5185 | else |
4f25aa18 GS |
5186 | Perl_sv_catpvf(aTHX_ atsv, |
5187 | "%s failed--call queue aborted", | |
7d30b5c4 | 5188 | paramList == PL_checkav ? "CHECK" |
4f25aa18 | 5189 | : paramList == PL_initav ? "INIT" |
3c10abe3 | 5190 | : paramList == PL_unitcheckav ? "UNITCHECK" |
4f25aa18 | 5191 | : "END"); |
312caa8e CS |
5192 | while (PL_scopestack_ix > oldscope) |
5193 | LEAVE; | |
14dd3ad8 | 5194 | JMPENV_POP; |
be2597df | 5195 | Perl_croak(aTHX_ "%"SVf"", SVfARG(atsv)); |
a0d0e21e | 5196 | } |
85e6fe83 | 5197 | break; |
6224f72b | 5198 | case 1: |
f86702cc | 5199 | STATUS_ALL_FAILURE; |
85e6fe83 | 5200 | /* FALL THROUGH */ |
6224f72b | 5201 | case 2: |
85e6fe83 | 5202 | /* my_exit() was called */ |
3280af22 | 5203 | while (PL_scopestack_ix > oldscope) |
2ae324a7 | 5204 | LEAVE; |
84902520 | 5205 | FREETMPS; |
3280af22 | 5206 | PL_curstash = PL_defstash; |
3280af22 | 5207 | PL_curcop = &PL_compiling; |
57843af0 | 5208 | CopLINE_set(PL_curcop, oldline); |
14dd3ad8 | 5209 | JMPENV_POP; |
cc3604b1 | 5210 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) { |
3280af22 | 5211 | if (paramList == PL_beginav) |
cea2e8a9 | 5212 | Perl_croak(aTHX_ "BEGIN failed--compilation aborted"); |
85e6fe83 | 5213 | else |
4f25aa18 | 5214 | Perl_croak(aTHX_ "%s failed--call queue aborted", |
7d30b5c4 | 5215 | paramList == PL_checkav ? "CHECK" |
4f25aa18 | 5216 | : paramList == PL_initav ? "INIT" |
3c10abe3 | 5217 | : paramList == PL_unitcheckav ? "UNITCHECK" |
4f25aa18 | 5218 | : "END"); |
85e6fe83 | 5219 | } |
f86702cc | 5220 | my_exit_jump(); |
85e6fe83 | 5221 | /* NOTREACHED */ |
6224f72b | 5222 | case 3: |
312caa8e CS |
5223 | if (PL_restartop) { |
5224 | PL_curcop = &PL_compiling; | |
57843af0 | 5225 | CopLINE_set(PL_curcop, oldline); |
312caa8e | 5226 | JMPENV_JUMP(3); |
85e6fe83 | 5227 | } |
bf49b057 | 5228 | PerlIO_printf(Perl_error_log, "panic: restartop\n"); |
312caa8e CS |
5229 | FREETMPS; |
5230 | break; | |
8990e307 | 5231 | } |
14dd3ad8 | 5232 | JMPENV_POP; |
93a17b20 | 5233 | } |
93a17b20 | 5234 | } |
93a17b20 | 5235 | |
f86702cc | 5236 | void |
864dbfa3 | 5237 | Perl_my_exit(pTHX_ U32 status) |
f86702cc | 5238 | { |
97aff369 | 5239 | dVAR; |
f86702cc | 5240 | switch (status) { |
5241 | case 0: | |
5242 | STATUS_ALL_SUCCESS; | |
5243 | break; | |
5244 | case 1: | |
5245 | STATUS_ALL_FAILURE; | |
5246 | break; | |
5247 | default: | |
6ac6a52b | 5248 | STATUS_EXIT_SET(status); |
f86702cc | 5249 | break; |
5250 | } | |
5251 | my_exit_jump(); | |
5252 | } | |
5253 | ||
5254 | void | |
864dbfa3 | 5255 | Perl_my_failure_exit(pTHX) |
f86702cc | 5256 | { |
97aff369 | 5257 | dVAR; |
f86702cc | 5258 | #ifdef VMS |
fb38d079 JM |
5259 | /* We have been called to fall on our sword. The desired exit code |
5260 | * should be already set in STATUS_UNIX, but could be shifted over | |
0968cdad JM |
5261 | * by 8 bits. STATUS_UNIX_EXIT_SET will handle the cases where a |
5262 | * that code is set. | |
fb38d079 JM |
5263 | * |
5264 | * If an error code has not been set, then force the issue. | |
5265 | */ | |
0968cdad JM |
5266 | if (MY_POSIX_EXIT) { |
5267 | ||
e08e1e1d JM |
5268 | /* According to the die_exit.t tests, if errno is non-zero */ |
5269 | /* It should be used for the error status. */ | |
0968cdad | 5270 | |
e08e1e1d JM |
5271 | if (errno == EVMSERR) { |
5272 | STATUS_NATIVE = vaxc$errno; | |
5273 | } else { | |
0968cdad | 5274 | |
e08e1e1d JM |
5275 | /* According to die_exit.t tests, if the child_exit code is */ |
5276 | /* also zero, then we need to exit with a code of 255 */ | |
5277 | if ((errno != 0) && (errno < 256)) | |
5278 | STATUS_UNIX_EXIT_SET(errno); | |
5279 | else if (STATUS_UNIX < 255) { | |
0968cdad | 5280 | STATUS_UNIX_EXIT_SET(255); |
e08e1e1d JM |
5281 | } |
5282 | ||
0968cdad | 5283 | } |
e08e1e1d JM |
5284 | |
5285 | /* The exit code could have been set by $? or vmsish which | |
5286 | * means that it may not have fatal set. So convert | |
5287 | * success/warning codes to fatal with out changing | |
5288 | * the POSIX status code. The severity makes VMS native | |
5289 | * status handling work, while UNIX mode programs use the | |
5290 | * the POSIX exit codes. | |
5291 | */ | |
5292 | if ((STATUS_NATIVE & (STS$K_SEVERE|STS$K_ERROR)) == 0) { | |
5293 | STATUS_NATIVE &= STS$M_COND_ID; | |
5294 | STATUS_NATIVE |= STS$K_ERROR | STS$M_INHIB_MSG; | |
5295 | } | |
0968cdad JM |
5296 | } |
5297 | else { | |
5298 | /* Traditionally Perl on VMS always expects a Fatal Error. */ | |
5299 | if (vaxc$errno & 1) { | |
5300 | ||
5301 | /* So force success status to failure */ | |
5302 | if (STATUS_NATIVE & 1) | |
5303 | STATUS_ALL_FAILURE; | |
5304 | } | |
5305 | else { | |
5306 | if (!vaxc$errno) { | |
5307 | STATUS_UNIX = EINTR; /* In case something cares */ | |
5308 | STATUS_ALL_FAILURE; | |
5309 | } | |
5310 | else { | |
5311 | int severity; | |
5312 | STATUS_NATIVE = vaxc$errno; /* Should already be this */ | |
5313 | ||
5314 | /* Encode the severity code */ | |
5315 | severity = STATUS_NATIVE & STS$M_SEVERITY; | |
5316 | STATUS_UNIX = (severity ? severity : 1) << 8; | |
5317 | ||
5318 | /* Perl expects this to be a fatal error */ | |
5319 | if (severity != STS$K_SEVERE) | |
5320 | STATUS_ALL_FAILURE; | |
5321 | } | |
5322 | } | |
5323 | } | |
fb38d079 | 5324 | |
f86702cc | 5325 | #else |
9b599b2a | 5326 | int exitstatus; |
f86702cc | 5327 | if (errno & 255) |
e5218da5 | 5328 | STATUS_UNIX_SET(errno); |
9b599b2a | 5329 | else { |
e5218da5 | 5330 | exitstatus = STATUS_UNIX >> 8; |
9b599b2a | 5331 | if (exitstatus & 255) |
e5218da5 | 5332 | STATUS_UNIX_SET(exitstatus); |
9b599b2a | 5333 | else |
e5218da5 | 5334 | STATUS_UNIX_SET(255); |
9b599b2a | 5335 | } |
f86702cc | 5336 | #endif |
5337 | my_exit_jump(); | |
93a17b20 LW |
5338 | } |
5339 | ||
76e3520e | 5340 | STATIC void |
cea2e8a9 | 5341 | S_my_exit_jump(pTHX) |
f86702cc | 5342 | { |
27da23d5 | 5343 | dVAR; |
f86702cc | 5344 | |
3280af22 NIS |
5345 | if (PL_e_script) { |
5346 | SvREFCNT_dec(PL_e_script); | |
a0714e2c | 5347 | PL_e_script = NULL; |
f86702cc | 5348 | } |
5349 | ||
3280af22 | 5350 | POPSTACK_TO(PL_mainstack); |
f97a0ef2 RH |
5351 | dounwind(-1); |
5352 | LEAVE_SCOPE(0); | |
ff0cee69 | 5353 | |
6224f72b | 5354 | JMPENV_JUMP(2); |
f86702cc | 5355 | } |
873ef191 | 5356 | |
0cb96387 | 5357 | static I32 |
acfe0abc | 5358 | read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen) |
873ef191 | 5359 | { |
97aff369 | 5360 | dVAR; |
9d4ba2ae AL |
5361 | const char * const p = SvPVX_const(PL_e_script); |
5362 | const char *nl = strchr(p, '\n'); | |
5363 | ||
5364 | PERL_UNUSED_ARG(idx); | |
5365 | PERL_UNUSED_ARG(maxlen); | |
dd374669 | 5366 | |
3280af22 | 5367 | nl = (nl) ? nl+1 : SvEND(PL_e_script); |
7dfe3f66 | 5368 | if (nl-p == 0) { |
0cb96387 | 5369 | filter_del(read_e_script); |
873ef191 | 5370 | return 0; |
7dfe3f66 | 5371 | } |
873ef191 | 5372 | sv_catpvn(buf_sv, p, nl-p); |
3280af22 | 5373 | sv_chop(PL_e_script, nl); |
873ef191 GS |
5374 | return 1; |
5375 | } | |
66610fdd RGS |
5376 | |
5377 | /* | |
5378 | * Local variables: | |
5379 | * c-indentation-style: bsd | |
5380 | * c-basic-offset: 4 | |
5381 | * indent-tabs-mode: t | |
5382 | * End: | |
5383 | * | |
37442d52 RGS |
5384 | * ex: set ts=8 sts=4 sw=4 noet: |
5385 | */ |