Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* perl.c |
2 | * | |
4bb101f2 | 3 | * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
770526c1 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 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 LW |
11 | /* |
12 | * "A ship then new they built for him/of mithril and of elven glass" --Bilbo | |
13 | */ | |
45d8adaa | 14 | |
166f8a29 DM |
15 | /* This file contains the top-level functions that are used to create, use |
16 | * and destroy a perl interpreter, plus the functions used by XS code to | |
17 | * call back into perl. Note that it does not contain the actual main() | |
ddfa107c | 18 | * function of the interpreter; that can be found in perlmain.c |
166f8a29 DM |
19 | */ |
20 | ||
ae3f3efd PS |
21 | /* PSz 12 Nov 03 |
22 | * | |
23 | * Be proud that perl(1) may proclaim: | |
24 | * Setuid Perl scripts are safer than C programs ... | |
25 | * Do not abandon (deprecate) suidperl. Do not advocate C wrappers. | |
26 | * | |
27 | * The flow was: perl starts, notices script is suid, execs suidperl with same | |
28 | * arguments; suidperl opens script, checks many things, sets itself with | |
29 | * right UID, execs perl with similar arguments but with script pre-opened on | |
30 | * /dev/fd/xxx; perl checks script is as should be and does work. This was | |
31 | * insecure: see perlsec(1) for many problems with this approach. | |
32 | * | |
33 | * The "correct" flow should be: perl starts, opens script and notices it is | |
34 | * suid, checks many things, execs suidperl with similar arguments but with | |
35 | * script on /dev/fd/xxx; suidperl checks script and /dev/fd/xxx object are | |
36 | * same, checks arguments match #! line, sets itself with right UID, execs | |
37 | * perl with same arguments; perl checks many things and does work. | |
38 | * | |
39 | * (Opening the script in perl instead of suidperl, we "lose" scripts that | |
40 | * are readable to the target UID but not to the invoker. Where did | |
41 | * unreadable scripts work anyway?) | |
42 | * | |
43 | * For now, suidperl and perl are pretty much the same large and cumbersome | |
44 | * program, so suidperl can check its argument list (see comments elsewhere). | |
45 | * | |
46 | * References: | |
47 | * Original bug report: | |
48 | * http://bugs.perl.org/index.html?req=bug_id&bug_id=20010322.218 | |
49 | * http://rt.perl.org/rt2/Ticket/Display.html?id=6511 | |
50 | * Comments and discussion with Debian: | |
51 | * http://bugs.debian.org/203426 | |
52 | * http://bugs.debian.org/220486 | |
53 | * Debian Security Advisory DSA 431-1 (does not fully fix problem): | |
54 | * http://www.debian.org/security/2004/dsa-431 | |
55 | * CVE candidate: | |
56 | * http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0618 | |
57 | * Previous versions of this patch sent to perl5-porters: | |
58 | * http://www.mail-archive.com/perl5-porters@perl.org/msg71953.html | |
59 | * http://www.mail-archive.com/perl5-porters@perl.org/msg75245.html | |
60 | * http://www.mail-archive.com/perl5-porters@perl.org/msg75563.html | |
61 | * http://www.mail-archive.com/perl5-porters@perl.org/msg75635.html | |
62 | * | |
63 | Paul Szabo - psz@maths.usyd.edu.au http://www.maths.usyd.edu.au:8000/u/psz/ | |
64 | School of Mathematics and Statistics University of Sydney 2006 Australia | |
65 | * | |
66 | */ | |
67 | /* PSz 13 Nov 03 | |
68 | * Use truthful, neat, specific error messages. | |
69 | * Cannot always hide the truth; security must not depend on doing so. | |
70 | */ | |
71 | ||
72 | /* PSz 18 Feb 04 | |
73 | * Use global(?), thread-local fdscript for easier checks. | |
74 | * (I do not understand how we could possibly get a thread race: | |
75 | * do not all threads go through the same initialization? Or in | |
76 | * fact, are not threads started only after we get the script and | |
77 | * so know what to do? Oh well, make things super-safe...) | |
78 | */ | |
79 | ||
378cc40b | 80 | #include "EXTERN.h" |
864dbfa3 | 81 | #define PERL_IN_PERL_C |
378cc40b | 82 | #include "perl.h" |
e3321bb0 | 83 | #include "patchlevel.h" /* for local_patches */ |
378cc40b | 84 | |
011f1a1a JH |
85 | #ifdef NETWARE |
86 | #include "nwutil.h" | |
87 | char *nw_get_sitelib(const char *pl); | |
88 | #endif | |
89 | ||
df5cef82 | 90 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e LW |
91 | #ifdef I_UNISTD |
92 | #include <unistd.h> | |
93 | #endif | |
a0d0e21e | 94 | |
2aa47728 NC |
95 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
96 | # ifdef I_SYS_WAIT | |
97 | # include <sys/wait.h> | |
98 | # endif | |
bf357333 NC |
99 | # ifdef I_SYSUIO |
100 | # include <sys/uio.h> | |
101 | # endif | |
102 | ||
103 | union control_un { | |
104 | struct cmsghdr cm; | |
105 | char control[CMSG_SPACE(sizeof(int))]; | |
106 | }; | |
107 | ||
2aa47728 NC |
108 | #endif |
109 | ||
5311654c JH |
110 | #ifdef __BEOS__ |
111 | # define HZ 1000000 | |
112 | #endif | |
113 | ||
114 | #ifndef HZ | |
115 | # ifdef CLK_TCK | |
116 | # define HZ CLK_TCK | |
117 | # else | |
118 | # define HZ 60 | |
119 | # endif | |
120 | #endif | |
121 | ||
7114a2d2 | 122 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) && !defined(PERL_MICRO) |
20ce7b12 | 123 | char *getenv (char *); /* Usually in <stdlib.h> */ |
54310121 | 124 | #endif |
125 | ||
acfe0abc | 126 | static I32 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen); |
0cb96387 | 127 | |
a687059c LW |
128 | #ifdef IAMSUID |
129 | #ifndef DOSUID | |
130 | #define DOSUID | |
131 | #endif | |
ae3f3efd | 132 | #endif /* IAMSUID */ |
378cc40b | 133 | |
a687059c LW |
134 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
135 | #ifdef DOSUID | |
136 | #undef DOSUID | |
137 | #endif | |
138 | #endif | |
8d063cd8 | 139 | |
e6827a76 | 140 | static void |
daa7d858 | 141 | S_init_tls_and_interp(PerlInterpreter *my_perl) |
e6827a76 | 142 | { |
27da23d5 | 143 | dVAR; |
e6827a76 NC |
144 | if (!PL_curinterp) { |
145 | PERL_SET_INTERP(my_perl); | |
3db8f154 | 146 | #if defined(USE_ITHREADS) |
e6827a76 NC |
147 | INIT_THREADS; |
148 | ALLOC_THREAD_KEY; | |
149 | PERL_SET_THX(my_perl); | |
150 | OP_REFCNT_INIT; | |
151 | MUTEX_INIT(&PL_dollarzero_mutex); | |
06d86050 | 152 | # endif |
e6827a76 NC |
153 | } |
154 | else { | |
155 | PERL_SET_THX(my_perl); | |
156 | } | |
157 | } | |
06d86050 | 158 | |
32e30700 GS |
159 | #ifdef PERL_IMPLICIT_SYS |
160 | PerlInterpreter * | |
7766f137 GS |
161 | perl_alloc_using(struct IPerlMem* ipM, struct IPerlMem* ipMS, |
162 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
32e30700 GS |
163 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, |
164 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
165 | struct IPerlProc* ipP) | |
166 | { | |
167 | PerlInterpreter *my_perl; | |
32e30700 GS |
168 | /* New() needs interpreter, so call malloc() instead */ |
169 | my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); | |
e6827a76 | 170 | S_init_tls_and_interp(my_perl); |
32e30700 GS |
171 | Zero(my_perl, 1, PerlInterpreter); |
172 | PL_Mem = ipM; | |
7766f137 GS |
173 | PL_MemShared = ipMS; |
174 | PL_MemParse = ipMP; | |
32e30700 GS |
175 | PL_Env = ipE; |
176 | PL_StdIO = ipStd; | |
177 | PL_LIO = ipLIO; | |
178 | PL_Dir = ipD; | |
179 | PL_Sock = ipS; | |
180 | PL_Proc = ipP; | |
7766f137 | 181 | |
32e30700 GS |
182 | return my_perl; |
183 | } | |
184 | #else | |
954c1994 GS |
185 | |
186 | /* | |
ccfc67b7 JH |
187 | =head1 Embedding Functions |
188 | ||
954c1994 GS |
189 | =for apidoc perl_alloc |
190 | ||
191 | Allocates a new Perl interpreter. See L<perlembed>. | |
192 | ||
193 | =cut | |
194 | */ | |
195 | ||
93a17b20 | 196 | PerlInterpreter * |
cea2e8a9 | 197 | perl_alloc(void) |
79072805 | 198 | { |
cea2e8a9 | 199 | PerlInterpreter *my_perl; |
79072805 | 200 | |
54aff467 | 201 | /* New() needs interpreter, so call malloc() instead */ |
e8ee3774 | 202 | my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); |
ba869deb | 203 | |
e6827a76 | 204 | S_init_tls_and_interp(my_perl); |
07409e01 | 205 | return (PerlInterpreter *) ZeroD(my_perl, 1, PerlInterpreter); |
79072805 | 206 | } |
32e30700 | 207 | #endif /* PERL_IMPLICIT_SYS */ |
79072805 | 208 | |
954c1994 GS |
209 | /* |
210 | =for apidoc perl_construct | |
211 | ||
212 | Initializes a new Perl interpreter. See L<perlembed>. | |
213 | ||
214 | =cut | |
215 | */ | |
216 | ||
79072805 | 217 | void |
0cb96387 | 218 | perl_construct(pTHXx) |
79072805 | 219 | { |
27da23d5 | 220 | dVAR; |
8990e307 | 221 | #ifdef MULTIPLICITY |
54aff467 | 222 | init_interp(); |
ac27b0f5 | 223 | PL_perl_destruct_level = 1; |
54aff467 GS |
224 | #else |
225 | if (PL_perl_destruct_level > 0) | |
226 | init_interp(); | |
227 | #endif | |
33f46ff6 | 228 | /* Init the real globals (and main thread)? */ |
3280af22 | 229 | if (!PL_linestr) { |
2aea9f8a GS |
230 | PL_curcop = &PL_compiling; /* needed by ckWARN, right away */ |
231 | ||
3280af22 NIS |
232 | PL_linestr = NEWSV(65,79); |
233 | sv_upgrade(PL_linestr,SVt_PVIV); | |
79072805 | 234 | |
3280af22 | 235 | if (!SvREADONLY(&PL_sv_undef)) { |
d689ffdd JP |
236 | /* set read-only and try to insure than we wont see REFCNT==0 |
237 | very often */ | |
238 | ||
3280af22 NIS |
239 | SvREADONLY_on(&PL_sv_undef); |
240 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
79072805 | 241 | |
3280af22 | 242 | sv_setpv(&PL_sv_no,PL_No); |
0309f36e NC |
243 | /* value lookup in void context - happens to have the side effect |
244 | of caching the numeric forms. */ | |
245 | SvIV(&PL_sv_no); | |
3280af22 NIS |
246 | SvNV(&PL_sv_no); |
247 | SvREADONLY_on(&PL_sv_no); | |
248 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; | |
79072805 | 249 | |
3280af22 | 250 | sv_setpv(&PL_sv_yes,PL_Yes); |
0309f36e | 251 | SvIV(&PL_sv_yes); |
3280af22 NIS |
252 | SvNV(&PL_sv_yes); |
253 | SvREADONLY_on(&PL_sv_yes); | |
254 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; | |
7996736c MHM |
255 | |
256 | SvREADONLY_on(&PL_sv_placeholder); | |
257 | SvREFCNT(&PL_sv_placeholder) = (~(U32)0)/2; | |
6e72f9df | 258 | } |
79072805 | 259 | |
cea2e8a9 | 260 | PL_sighandlerp = Perl_sighandler; |
3280af22 | 261 | PL_pidstatus = newHV(); |
79072805 LW |
262 | } |
263 | ||
8bfdd7d9 | 264 | PL_rs = newSVpvn("\n", 1); |
dc92893f | 265 | |
cea2e8a9 | 266 | init_stacks(); |
79072805 | 267 | |
748a9306 | 268 | init_ids(); |
3280af22 | 269 | PL_lex_state = LEX_NOTPARSING; |
a5f75d66 | 270 | |
312caa8e | 271 | JMPENV_BOOTSTRAP; |
f86702cc | 272 | STATUS_ALL_SUCCESS; |
273 | ||
0672f40e | 274 | init_i18nl10n(1); |
36477c24 | 275 | SET_NUMERIC_STANDARD(); |
0b5b802d | 276 | |
ab821d7f | 277 | #if defined(LOCAL_PATCH_COUNT) |
3280af22 | 278 | PL_localpatches = local_patches; /* For possible -v */ |
ab821d7f | 279 | #endif |
280 | ||
52853b95 GS |
281 | #ifdef HAVE_INTERP_INTERN |
282 | sys_intern_init(); | |
283 | #endif | |
284 | ||
3a1ee7e8 | 285 | PerlIO_init(aTHX); /* Hook to IO system */ |
760ac839 | 286 | |
3280af22 NIS |
287 | PL_fdpid = newAV(); /* for remembering popen pids by fd */ |
288 | PL_modglobal = newHV(); /* pointers to per-interpreter module globals */ | |
24944567 | 289 | PL_errors = newSVpvn("",0); |
48c6b404 | 290 | sv_setpvn(PERL_DEBUG_PAD(0), "", 0); /* For regex debugging. */ |
1f483ca1 JH |
291 | sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */ |
292 | sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */ | |
1fcf4c12 | 293 | #ifdef USE_ITHREADS |
13137afc AB |
294 | PL_regex_padav = newAV(); |
295 | av_push(PL_regex_padav,(SV*)newAV()); /* First entry is an array of empty elements */ | |
296 | PL_regex_pad = AvARRAY(PL_regex_padav); | |
1fcf4c12 | 297 | #endif |
e5dd39fc | 298 | #ifdef USE_REENTRANT_API |
59bd0823 | 299 | Perl_reentrant_init(aTHX); |
e5dd39fc | 300 | #endif |
3d47000e AB |
301 | |
302 | /* Note that strtab is a rather special HV. Assumptions are made | |
303 | about not iterating on it, and not adding tie magic to it. | |
304 | It is properly deallocated in perl_destruct() */ | |
305 | PL_strtab = newHV(); | |
306 | ||
3d47000e AB |
307 | HvSHAREKEYS_off(PL_strtab); /* mandatory */ |
308 | hv_ksplit(PL_strtab, 512); | |
309 | ||
0631ea03 AB |
310 | #if defined(__DYNAMIC__) && (defined(NeXT) || defined(__NeXT__)) |
311 | _dyld_lookup_and_bind | |
312 | ("__environ", (unsigned long *) &environ_pointer, NULL); | |
313 | #endif /* environ */ | |
314 | ||
2f42fcb0 JH |
315 | #ifndef PERL_MICRO |
316 | # ifdef USE_ENVIRON_ARRAY | |
0631ea03 | 317 | PL_origenviron = environ; |
2f42fcb0 | 318 | # endif |
0631ea03 AB |
319 | #endif |
320 | ||
5311654c | 321 | /* Use sysconf(_SC_CLK_TCK) if available, if not |
dbc1d986 | 322 | * available or if the sysconf() fails, use the HZ. |
27da23d5 JH |
323 | * BeOS has those, but returns the wrong value. |
324 | * The HZ if not originally defined has been by now | |
325 | * been defined as CLK_TCK, if available. */ | |
dbc1d986 | 326 | #if defined(HAS_SYSCONF) && defined(_SC_CLK_TCK) && !defined(__BEOS__) |
5311654c JH |
327 | PL_clocktick = sysconf(_SC_CLK_TCK); |
328 | if (PL_clocktick <= 0) | |
329 | #endif | |
330 | PL_clocktick = HZ; | |
331 | ||
081fc587 AB |
332 | PL_stashcache = newHV(); |
333 | ||
d7aa5382 JP |
334 | PL_patchlevel = newSVpv( |
335 | Perl_form(aTHX_ "%d.%d.%d", | |
336 | (int)PERL_REVISION, | |
337 | (int)PERL_VERSION, | |
338 | (int)PERL_SUBVERSION ), 0 | |
339 | ); | |
340 | ||
27da23d5 JH |
341 | #ifdef HAS_MMAP |
342 | if (!PL_mmap_page_size) { | |
343 | #if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_MMAP_PAGE_SIZE)) | |
344 | { | |
345 | SETERRNO(0, SS_NORMAL); | |
346 | # ifdef _SC_PAGESIZE | |
347 | PL_mmap_page_size = sysconf(_SC_PAGESIZE); | |
348 | # else | |
349 | PL_mmap_page_size = sysconf(_SC_MMAP_PAGE_SIZE); | |
350 | # endif | |
351 | if ((long) PL_mmap_page_size < 0) { | |
352 | if (errno) { | |
353 | SV *error = ERRSV; | |
27da23d5 | 354 | (void) SvUPGRADE(error, SVt_PV); |
0510663f | 355 | Perl_croak(aTHX_ "panic: sysconf: %s", SvPV_nolen_const(error)); |
27da23d5 JH |
356 | } |
357 | else | |
358 | Perl_croak(aTHX_ "panic: sysconf: pagesize unknown"); | |
359 | } | |
360 | } | |
361 | #else | |
362 | # ifdef HAS_GETPAGESIZE | |
363 | PL_mmap_page_size = getpagesize(); | |
364 | # else | |
365 | # if defined(I_SYS_PARAM) && defined(PAGESIZE) | |
366 | PL_mmap_page_size = PAGESIZE; /* compiletime, bad */ | |
367 | # endif | |
368 | # endif | |
369 | #endif | |
370 | if (PL_mmap_page_size <= 0) | |
371 | Perl_croak(aTHX_ "panic: bad pagesize %" IVdf, | |
372 | (IV) PL_mmap_page_size); | |
373 | } | |
374 | #endif /* HAS_MMAP */ | |
375 | ||
376 | #if defined(HAS_TIMES) && defined(PERL_NEED_TIMESBASE) | |
377 | PL_timesbase.tms_utime = 0; | |
378 | PL_timesbase.tms_stime = 0; | |
379 | PL_timesbase.tms_cutime = 0; | |
380 | PL_timesbase.tms_cstime = 0; | |
381 | #endif | |
382 | ||
8990e307 | 383 | ENTER; |
79072805 LW |
384 | } |
385 | ||
954c1994 | 386 | /* |
62375a60 NIS |
387 | =for apidoc nothreadhook |
388 | ||
389 | Stub that provides thread hook for perl_destruct when there are | |
390 | no threads. | |
391 | ||
392 | =cut | |
393 | */ | |
394 | ||
395 | int | |
4e9e3734 | 396 | Perl_nothreadhook(pTHX) |
62375a60 NIS |
397 | { |
398 | return 0; | |
399 | } | |
400 | ||
41e4abd8 NC |
401 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
402 | void | |
403 | Perl_dump_sv_child(pTHX_ SV *sv) | |
404 | { | |
405 | ssize_t got; | |
bf357333 NC |
406 | const int sock = PL_dumper_fd; |
407 | const int debug_fd = PerlIO_fileno(Perl_debug_log); | |
bf357333 NC |
408 | union control_un control; |
409 | struct msghdr msg; | |
808ad2d0 | 410 | struct iovec vec[2]; |
bf357333 | 411 | struct cmsghdr *cmptr; |
808ad2d0 NC |
412 | int returned_errno; |
413 | unsigned char buffer[256]; | |
41e4abd8 | 414 | |
bf357333 | 415 | if(sock == -1 || debug_fd == -1) |
41e4abd8 NC |
416 | return; |
417 | ||
418 | PerlIO_flush(Perl_debug_log); | |
419 | ||
bf357333 NC |
420 | /* All these shenanigans are to pass a file descriptor over to our child for |
421 | it to dump out to. We can't let it hold open the file descriptor when it | |
422 | forks, as the file descriptor it will dump to can turn out to be one end | |
423 | of pipe that some other process will wait on for EOF. (So as it would | |
424 | be open, the wait would be forever. */ | |
425 | ||
426 | msg.msg_control = control.control; | |
427 | msg.msg_controllen = sizeof(control.control); | |
428 | /* We're a connected socket so we don't need a destination */ | |
429 | msg.msg_name = NULL; | |
430 | msg.msg_namelen = 0; | |
431 | msg.msg_iov = vec; | |
808ad2d0 | 432 | msg.msg_iovlen = 1; |
bf357333 NC |
433 | |
434 | cmptr = CMSG_FIRSTHDR(&msg); | |
435 | cmptr->cmsg_len = CMSG_LEN(sizeof(int)); | |
436 | cmptr->cmsg_level = SOL_SOCKET; | |
437 | cmptr->cmsg_type = SCM_RIGHTS; | |
438 | *((int *)CMSG_DATA(cmptr)) = 1; | |
439 | ||
440 | vec[0].iov_base = (void*)&sv; | |
441 | vec[0].iov_len = sizeof(sv); | |
442 | got = sendmsg(sock, &msg, 0); | |
41e4abd8 NC |
443 | |
444 | if(got < 0) { | |
bf357333 | 445 | perror("Debug leaking scalars parent sendmsg failed"); |
41e4abd8 NC |
446 | abort(); |
447 | } | |
bf357333 NC |
448 | if(got < sizeof(sv)) { |
449 | perror("Debug leaking scalars parent short sendmsg"); | |
41e4abd8 NC |
450 | abort(); |
451 | } | |
452 | ||
808ad2d0 NC |
453 | /* Return protocol is |
454 | int: errno value | |
455 | unsigned char: length of location string (0 for empty) | |
456 | unsigned char*: string (not terminated) | |
457 | */ | |
458 | vec[0].iov_base = (void*)&returned_errno; | |
459 | vec[0].iov_len = sizeof(returned_errno); | |
460 | vec[1].iov_base = buffer; | |
461 | vec[1].iov_len = 1; | |
462 | ||
463 | got = readv(sock, vec, 2); | |
41e4abd8 NC |
464 | |
465 | if(got < 0) { | |
466 | perror("Debug leaking scalars parent read failed"); | |
808ad2d0 | 467 | PerlIO_flush(PerlIO_stderr()); |
41e4abd8 NC |
468 | abort(); |
469 | } | |
808ad2d0 | 470 | if(got < sizeof(returned_errno) + 1) { |
41e4abd8 | 471 | perror("Debug leaking scalars parent short read"); |
808ad2d0 | 472 | PerlIO_flush(PerlIO_stderr()); |
41e4abd8 NC |
473 | abort(); |
474 | } | |
475 | ||
808ad2d0 NC |
476 | if (*buffer) { |
477 | got = read(sock, buffer + 1, *buffer); | |
478 | if(got < 0) { | |
479 | perror("Debug leaking scalars parent read 2 failed"); | |
480 | PerlIO_flush(PerlIO_stderr()); | |
481 | abort(); | |
482 | } | |
483 | ||
484 | if(got < *buffer) { | |
485 | perror("Debug leaking scalars parent short read 2"); | |
486 | PerlIO_flush(PerlIO_stderr()); | |
487 | abort(); | |
488 | } | |
489 | } | |
490 | ||
491 | if (returned_errno || *buffer) { | |
492 | Perl_warn(aTHX_ "Debug leaking scalars child failed%s%.*s with errno" | |
493 | " %d: %s", (*buffer ? " at " : ""), (int) *buffer, buffer + 1, | |
494 | returned_errno, strerror(returned_errno)); | |
41e4abd8 NC |
495 | } |
496 | } | |
497 | #endif | |
498 | ||
62375a60 | 499 | /* |
954c1994 GS |
500 | =for apidoc perl_destruct |
501 | ||
502 | Shuts down a Perl interpreter. See L<perlembed>. | |
503 | ||
504 | =cut | |
505 | */ | |
506 | ||
31d77e54 | 507 | int |
0cb96387 | 508 | perl_destruct(pTHXx) |
79072805 | 509 | { |
27da23d5 | 510 | dVAR; |
7c474504 | 511 | volatile int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
a0d0e21e | 512 | HV *hv; |
2aa47728 | 513 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
2aa47728 NC |
514 | pid_t child; |
515 | #endif | |
8990e307 | 516 | |
7766f137 GS |
517 | /* wait for all pseudo-forked children to finish */ |
518 | PERL_WAIT_FOR_CHILDREN; | |
519 | ||
3280af22 | 520 | destruct_level = PL_perl_destruct_level; |
4633a7c4 LW |
521 | #ifdef DEBUGGING |
522 | { | |
b7787f18 | 523 | const char *s; |
155aba94 | 524 | if ((s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL"))) { |
e1ec3a88 | 525 | const int i = atoi(s); |
5f05dabc | 526 | if (destruct_level < i) |
527 | destruct_level = i; | |
528 | } | |
4633a7c4 LW |
529 | } |
530 | #endif | |
531 | ||
27da23d5 | 532 | if (PL_exit_flags & PERL_EXIT_DESTRUCT_END) { |
f3faeb53 AB |
533 | dJMPENV; |
534 | int x = 0; | |
535 | ||
536 | JMPENV_PUSH(x); | |
1b6737cc | 537 | PERL_UNUSED_VAR(x); |
f3faeb53 AB |
538 | if (PL_endav && !PL_minus_c) |
539 | call_list(PL_scopestack_ix, PL_endav); | |
540 | JMPENV_POP; | |
26f423df | 541 | } |
f3faeb53 | 542 | LEAVE; |
a0d0e21e LW |
543 | FREETMPS; |
544 | ||
e00b64d4 | 545 | /* Need to flush since END blocks can produce output */ |
f13a2bc0 | 546 | my_fflush_all(); |
e00b64d4 | 547 | |
62375a60 NIS |
548 | if (CALL_FPTR(PL_threadhook)(aTHX)) { |
549 | /* Threads hook has vetoed further cleanup */ | |
b47cad08 | 550 | return STATUS_NATIVE_EXPORT; |
62375a60 NIS |
551 | } |
552 | ||
2aa47728 NC |
553 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
554 | if (destruct_level != 0) { | |
555 | /* Fork here to create a child. Our child's job is to preserve the | |
556 | state of scalars prior to destruction, so that we can instruct it | |
557 | to dump any scalars that we later find have leaked. | |
558 | There's no subtlety in this code - it assumes POSIX, and it doesn't | |
559 | fail gracefully */ | |
560 | int fd[2]; | |
561 | ||
562 | if(socketpair(AF_UNIX, SOCK_STREAM, 0, fd)) { | |
563 | perror("Debug leaking scalars socketpair failed"); | |
564 | abort(); | |
565 | } | |
566 | ||
567 | child = fork(); | |
568 | if(child == -1) { | |
569 | perror("Debug leaking scalars fork failed"); | |
570 | abort(); | |
571 | } | |
572 | if (!child) { | |
573 | /* We are the child */ | |
3125a5a4 NC |
574 | const int sock = fd[1]; |
575 | const int debug_fd = PerlIO_fileno(Perl_debug_log); | |
576 | int f; | |
808ad2d0 NC |
577 | const char *where; |
578 | /* Our success message is an integer 0, and a char 0 */ | |
579 | static const char success[sizeof(int) + 1]; | |
3125a5a4 | 580 | |
2aa47728 | 581 | close(fd[0]); |
2aa47728 | 582 | |
3125a5a4 NC |
583 | /* We need to close all other file descriptors otherwise we end up |
584 | with interesting hangs, where the parent closes its end of a | |
585 | pipe, and sits waiting for (another) child to terminate. Only | |
586 | that child never terminates, because it never gets EOF, because | |
bf357333 NC |
587 | we also have the far end of the pipe open. We even need to |
588 | close the debugging fd, because sometimes it happens to be one | |
589 | end of a pipe, and a process is waiting on the other end for | |
590 | EOF. Normally it would be closed at some point earlier in | |
591 | destruction, but if we happen to cause the pipe to remain open, | |
592 | EOF never occurs, and we get an infinite hang. Hence all the | |
593 | games to pass in a file descriptor if it's actually needed. */ | |
3125a5a4 NC |
594 | |
595 | f = sysconf(_SC_OPEN_MAX); | |
596 | if(f < 0) { | |
808ad2d0 NC |
597 | where = "sysconf failed"; |
598 | goto abort; | |
3125a5a4 NC |
599 | } |
600 | while (f--) { | |
601 | if (f == sock) | |
602 | continue; | |
3125a5a4 NC |
603 | close(f); |
604 | } | |
605 | ||
2aa47728 NC |
606 | while (1) { |
607 | SV *target; | |
bf357333 NC |
608 | union control_un control; |
609 | struct msghdr msg; | |
610 | struct iovec vec[1]; | |
611 | struct cmsghdr *cmptr; | |
612 | ssize_t got; | |
613 | int got_fd; | |
614 | ||
615 | msg.msg_control = control.control; | |
616 | msg.msg_controllen = sizeof(control.control); | |
617 | /* We're a connected socket so we don't need a source */ | |
618 | msg.msg_name = NULL; | |
619 | msg.msg_namelen = 0; | |
620 | msg.msg_iov = vec; | |
621 | msg.msg_iovlen = sizeof(vec)/sizeof(vec[0]); | |
622 | ||
623 | vec[0].iov_base = (void*)⌖ | |
624 | vec[0].iov_len = sizeof(target); | |
625 | ||
626 | got = recvmsg(sock, &msg, 0); | |
2aa47728 NC |
627 | |
628 | if(got == 0) | |
629 | break; | |
630 | if(got < 0) { | |
808ad2d0 NC |
631 | where = "recv failed"; |
632 | goto abort; | |
2aa47728 NC |
633 | } |
634 | if(got < sizeof(target)) { | |
808ad2d0 NC |
635 | where = "short recv"; |
636 | goto abort; | |
2aa47728 | 637 | } |
bf357333 | 638 | |
808ad2d0 NC |
639 | if(!(cmptr = CMSG_FIRSTHDR(&msg))) { |
640 | where = "no cmsg"; | |
641 | goto abort; | |
642 | } | |
643 | if(cmptr->cmsg_len != CMSG_LEN(sizeof(int))) { | |
644 | where = "wrong cmsg_len"; | |
645 | goto abort; | |
646 | } | |
647 | if(cmptr->cmsg_level != SOL_SOCKET) { | |
648 | where = "wrong cmsg_level"; | |
649 | goto abort; | |
650 | } | |
651 | if(cmptr->cmsg_type != SCM_RIGHTS) { | |
652 | where = "wrong cmsg_type"; | |
653 | goto abort; | |
654 | } | |
bf357333 NC |
655 | |
656 | got_fd = *(int*)CMSG_DATA(cmptr); | |
657 | /* For our last little bit of trickery, put the file descriptor | |
658 | back into Perl_debug_log, as if we never actually closed it | |
659 | */ | |
808ad2d0 NC |
660 | if(got_fd != debug_fd) { |
661 | if (dup2(got_fd, debug_fd) == -1) { | |
662 | where = "dup2"; | |
663 | goto abort; | |
664 | } | |
665 | } | |
2aa47728 | 666 | sv_dump(target); |
bf357333 | 667 | |
2aa47728 NC |
668 | PerlIO_flush(Perl_debug_log); |
669 | ||
808ad2d0 | 670 | got = write(sock, &success, sizeof(success)); |
2aa47728 NC |
671 | |
672 | if(got < 0) { | |
808ad2d0 NC |
673 | where = "write failed"; |
674 | goto abort; | |
2aa47728 | 675 | } |
808ad2d0 NC |
676 | if(got < sizeof(success)) { |
677 | where = "short write"; | |
678 | goto abort; | |
2aa47728 NC |
679 | } |
680 | } | |
681 | _exit(0); | |
808ad2d0 NC |
682 | abort: |
683 | { | |
684 | int send_errno = errno; | |
685 | unsigned char length = (unsigned char) strlen(where); | |
686 | struct iovec failure[3] = { | |
687 | {(void*)&send_errno, sizeof(send_errno)}, | |
688 | {&length, 1}, | |
689 | {(void*)where, length} | |
690 | }; | |
691 | int got = writev(sock, failure, 3); | |
692 | /* Bad news travels fast. Faster than data. We'll get a SIGPIPE | |
693 | in the parent if we try to read from the socketpair after the | |
694 | child has exited, even if there was data to read. | |
695 | So sleep a bit to give the parent a fighting chance of | |
696 | reading the data. */ | |
697 | sleep(2); | |
698 | _exit((got == -1) ? errno : 0); | |
699 | } | |
bf357333 | 700 | /* End of child. */ |
2aa47728 | 701 | } |
41e4abd8 | 702 | PL_dumper_fd = fd[0]; |
2aa47728 NC |
703 | close(fd[1]); |
704 | } | |
705 | #endif | |
706 | ||
ff0cee69 | 707 | /* We must account for everything. */ |
708 | ||
709 | /* Destroy the main CV and syntax tree */ | |
17fbfdf6 NC |
710 | /* Do this now, because destroying ops can cause new SVs to be generated |
711 | in Perl_pad_swipe, and when running with -DDEBUG_LEAKING_SCALARS they | |
712 | PL_curcop to point to a valid op from which the filename structure | |
713 | member is copied. */ | |
714 | PL_curcop = &PL_compiling; | |
3280af22 | 715 | if (PL_main_root) { |
4e380990 DM |
716 | /* ensure comppad/curpad to refer to main's pad */ |
717 | if (CvPADLIST(PL_main_cv)) { | |
718 | PAD_SET_CUR_NOSAVE(CvPADLIST(PL_main_cv), 1); | |
719 | } | |
3280af22 NIS |
720 | op_free(PL_main_root); |
721 | PL_main_root = Nullop; | |
a0d0e21e | 722 | } |
3280af22 NIS |
723 | PL_main_start = Nullop; |
724 | SvREFCNT_dec(PL_main_cv); | |
725 | PL_main_cv = Nullcv; | |
24d3c518 | 726 | PL_dirty = TRUE; |
ff0cee69 | 727 | |
13621cfb NIS |
728 | /* Tell PerlIO we are about to tear things apart in case |
729 | we have layers which are using resources that should | |
730 | be cleaned up now. | |
731 | */ | |
732 | ||
733 | PerlIO_destruct(aTHX); | |
734 | ||
3280af22 | 735 | if (PL_sv_objcount) { |
a0d0e21e LW |
736 | /* |
737 | * Try to destruct global references. We do this first so that the | |
738 | * destructors and destructees still exist. Some sv's might remain. | |
739 | * Non-referenced objects are on their own. | |
740 | */ | |
a0d0e21e | 741 | sv_clean_objs(); |
bf9cdc68 | 742 | PL_sv_objcount = 0; |
8990e307 LW |
743 | } |
744 | ||
5cd24f17 | 745 | /* unhook hooks which will soon be, or use, destroyed data */ |
3280af22 NIS |
746 | SvREFCNT_dec(PL_warnhook); |
747 | PL_warnhook = Nullsv; | |
748 | SvREFCNT_dec(PL_diehook); | |
749 | PL_diehook = Nullsv; | |
5cd24f17 | 750 | |
4b556e6c | 751 | /* call exit list functions */ |
3280af22 | 752 | while (PL_exitlistlen-- > 0) |
acfe0abc | 753 | PL_exitlist[PL_exitlistlen].fn(aTHX_ PL_exitlist[PL_exitlistlen].ptr); |
4b556e6c | 754 | |
3280af22 | 755 | Safefree(PL_exitlist); |
4b556e6c | 756 | |
1c4916e5 CB |
757 | PL_exitlist = NULL; |
758 | PL_exitlistlen = 0; | |
759 | ||
a0d0e21e | 760 | if (destruct_level == 0){ |
8990e307 | 761 | |
a0d0e21e | 762 | DEBUG_P(debprofdump()); |
ac27b0f5 | 763 | |
56a2bab7 NIS |
764 | #if defined(PERLIO_LAYERS) |
765 | /* No more IO - including error messages ! */ | |
766 | PerlIO_cleanup(aTHX); | |
767 | #endif | |
768 | ||
a0d0e21e | 769 | /* The exit() function will do everything that needs doing. */ |
b47cad08 | 770 | return STATUS_NATIVE_EXPORT; |
a0d0e21e | 771 | } |
5dd60ef7 | 772 | |
551a8b83 | 773 | /* jettison our possibly duplicated environment */ |
4b647fb0 DM |
774 | /* if PERL_USE_SAFE_PUTENV is defined environ will not have been copied |
775 | * so we certainly shouldn't free it here | |
776 | */ | |
2f42fcb0 | 777 | #ifndef PERL_MICRO |
4b647fb0 | 778 | #if defined(USE_ENVIRON_ARRAY) && !defined(PERL_USE_SAFE_PUTENV) |
50acdf95 | 779 | if (environ != PL_origenviron && !PL_use_safe_putenv |
4efc5df6 GS |
780 | #ifdef USE_ITHREADS |
781 | /* only main thread can free environ[0] contents */ | |
782 | && PL_curinterp == aTHX | |
783 | #endif | |
784 | ) | |
785 | { | |
551a8b83 JH |
786 | I32 i; |
787 | ||
788 | for (i = 0; environ[i]; i++) | |
4b420006 | 789 | safesysfree(environ[i]); |
0631ea03 | 790 | |
4b420006 JH |
791 | /* Must use safesysfree() when working with environ. */ |
792 | safesysfree(environ); | |
551a8b83 JH |
793 | |
794 | environ = PL_origenviron; | |
795 | } | |
796 | #endif | |
2f42fcb0 | 797 | #endif /* !PERL_MICRO */ |
551a8b83 | 798 | |
804ffa60 DM |
799 | /* reset so print() ends up where we expect */ |
800 | setdefout(Nullgv); | |
801 | ||
5f8cb046 DM |
802 | #ifdef USE_ITHREADS |
803 | /* the syntax tree is shared between clones | |
804 | * so op_free(PL_main_root) only ReREFCNT_dec's | |
805 | * REGEXPs in the parent interpreter | |
806 | * we need to manually ReREFCNT_dec for the clones | |
807 | */ | |
808 | { | |
809 | I32 i = AvFILLp(PL_regex_padav) + 1; | |
810 | SV **ary = AvARRAY(PL_regex_padav); | |
811 | ||
812 | while (i) { | |
35061a7e | 813 | SV *resv = ary[--i]; |
35061a7e DM |
814 | |
815 | if (SvFLAGS(resv) & SVf_BREAK) { | |
577e12cc | 816 | /* this is PL_reg_curpm, already freed |
35061a7e DM |
817 | * flag is set in regexec.c:S_regtry |
818 | */ | |
819 | SvFLAGS(resv) &= ~SVf_BREAK; | |
3a1ee7e8 | 820 | } |
1cc8b4c5 AB |
821 | else if(SvREPADTMP(resv)) { |
822 | SvREPADTMP_off(resv); | |
823 | } | |
a560f29b NC |
824 | else if(SvIOKp(resv)) { |
825 | REGEXP *re = INT2PTR(REGEXP *,SvIVX(resv)); | |
5f8cb046 DM |
826 | ReREFCNT_dec(re); |
827 | } | |
828 | } | |
829 | } | |
830 | SvREFCNT_dec(PL_regex_padav); | |
831 | PL_regex_padav = Nullav; | |
832 | PL_regex_pad = NULL; | |
833 | #endif | |
834 | ||
081fc587 AB |
835 | SvREFCNT_dec((SV*) PL_stashcache); |
836 | PL_stashcache = NULL; | |
837 | ||
5f05dabc | 838 | /* loosen bonds of global variables */ |
839 | ||
3280af22 NIS |
840 | if(PL_rsfp) { |
841 | (void)PerlIO_close(PL_rsfp); | |
842 | PL_rsfp = Nullfp; | |
8ebc5c01 | 843 | } |
844 | ||
845 | /* Filters for program text */ | |
3280af22 NIS |
846 | SvREFCNT_dec(PL_rsfp_filters); |
847 | PL_rsfp_filters = Nullav; | |
8ebc5c01 | 848 | |
849 | /* switches */ | |
3280af22 NIS |
850 | PL_preprocess = FALSE; |
851 | PL_minus_n = FALSE; | |
852 | PL_minus_p = FALSE; | |
853 | PL_minus_l = FALSE; | |
854 | PL_minus_a = FALSE; | |
855 | PL_minus_F = FALSE; | |
856 | PL_doswitches = FALSE; | |
599cee73 | 857 | PL_dowarn = G_WARN_OFF; |
3280af22 NIS |
858 | PL_doextract = FALSE; |
859 | PL_sawampersand = FALSE; /* must save all match strings */ | |
3280af22 NIS |
860 | PL_unsafe = FALSE; |
861 | ||
862 | Safefree(PL_inplace); | |
863 | PL_inplace = Nullch; | |
a7cb1f99 | 864 | SvREFCNT_dec(PL_patchlevel); |
3280af22 NIS |
865 | |
866 | if (PL_e_script) { | |
867 | SvREFCNT_dec(PL_e_script); | |
868 | PL_e_script = Nullsv; | |
8ebc5c01 | 869 | } |
870 | ||
bf9cdc68 RG |
871 | PL_perldb = 0; |
872 | ||
8ebc5c01 | 873 | /* magical thingies */ |
874 | ||
7889fe52 NIS |
875 | SvREFCNT_dec(PL_ofs_sv); /* $, */ |
876 | PL_ofs_sv = Nullsv; | |
5f05dabc | 877 | |
7889fe52 NIS |
878 | SvREFCNT_dec(PL_ors_sv); /* $\ */ |
879 | PL_ors_sv = Nullsv; | |
8ebc5c01 | 880 | |
3280af22 NIS |
881 | SvREFCNT_dec(PL_rs); /* $/ */ |
882 | PL_rs = Nullsv; | |
dc92893f | 883 | |
d33b2eba GS |
884 | PL_multiline = 0; /* $* */ |
885 | Safefree(PL_osname); /* $^O */ | |
886 | PL_osname = Nullch; | |
5f05dabc | 887 | |
3280af22 NIS |
888 | SvREFCNT_dec(PL_statname); |
889 | PL_statname = Nullsv; | |
890 | PL_statgv = Nullgv; | |
5f05dabc | 891 | |
8ebc5c01 | 892 | /* defgv, aka *_ should be taken care of elsewhere */ |
893 | ||
8ebc5c01 | 894 | /* clean up after study() */ |
3280af22 NIS |
895 | SvREFCNT_dec(PL_lastscream); |
896 | PL_lastscream = Nullsv; | |
897 | Safefree(PL_screamfirst); | |
898 | PL_screamfirst = 0; | |
899 | Safefree(PL_screamnext); | |
900 | PL_screamnext = 0; | |
8ebc5c01 | 901 | |
7d5ea4e7 GS |
902 | /* float buffer */ |
903 | Safefree(PL_efloatbuf); | |
904 | PL_efloatbuf = Nullch; | |
905 | PL_efloatsize = 0; | |
906 | ||
8ebc5c01 | 907 | /* startup and shutdown function lists */ |
3280af22 | 908 | SvREFCNT_dec(PL_beginav); |
5a837c8f | 909 | SvREFCNT_dec(PL_beginav_save); |
3280af22 | 910 | SvREFCNT_dec(PL_endav); |
7d30b5c4 | 911 | SvREFCNT_dec(PL_checkav); |
ece599bd | 912 | SvREFCNT_dec(PL_checkav_save); |
3280af22 NIS |
913 | SvREFCNT_dec(PL_initav); |
914 | PL_beginav = Nullav; | |
5a837c8f | 915 | PL_beginav_save = Nullav; |
3280af22 | 916 | PL_endav = Nullav; |
7d30b5c4 | 917 | PL_checkav = Nullav; |
ece599bd | 918 | PL_checkav_save = Nullav; |
3280af22 | 919 | PL_initav = Nullav; |
5618dfe8 | 920 | |
8ebc5c01 | 921 | /* shortcuts just get cleared */ |
3280af22 | 922 | PL_envgv = Nullgv; |
3280af22 NIS |
923 | PL_incgv = Nullgv; |
924 | PL_hintgv = Nullgv; | |
925 | PL_errgv = Nullgv; | |
926 | PL_argvgv = Nullgv; | |
927 | PL_argvoutgv = Nullgv; | |
928 | PL_stdingv = Nullgv; | |
bf49b057 | 929 | PL_stderrgv = Nullgv; |
3280af22 NIS |
930 | PL_last_in_gv = Nullgv; |
931 | PL_replgv = Nullgv; | |
bf9cdc68 RG |
932 | PL_DBgv = Nullgv; |
933 | PL_DBline = Nullgv; | |
934 | PL_DBsub = Nullgv; | |
935 | PL_DBsingle = Nullsv; | |
936 | PL_DBtrace = Nullsv; | |
937 | PL_DBsignal = Nullsv; | |
938 | PL_DBassertion = Nullsv; | |
939 | PL_DBcv = Nullcv; | |
940 | PL_dbargs = Nullav; | |
5c831c24 | 941 | PL_debstash = Nullhv; |
8ebc5c01 | 942 | |
7a1c5554 GS |
943 | SvREFCNT_dec(PL_argvout_stack); |
944 | PL_argvout_stack = Nullav; | |
8ebc5c01 | 945 | |
5c831c24 GS |
946 | SvREFCNT_dec(PL_modglobal); |
947 | PL_modglobal = Nullhv; | |
948 | SvREFCNT_dec(PL_preambleav); | |
949 | PL_preambleav = Nullav; | |
950 | SvREFCNT_dec(PL_subname); | |
951 | PL_subname = Nullsv; | |
952 | SvREFCNT_dec(PL_linestr); | |
953 | PL_linestr = Nullsv; | |
954 | SvREFCNT_dec(PL_pidstatus); | |
955 | PL_pidstatus = Nullhv; | |
956 | SvREFCNT_dec(PL_toptarget); | |
957 | PL_toptarget = Nullsv; | |
958 | SvREFCNT_dec(PL_bodytarget); | |
959 | PL_bodytarget = Nullsv; | |
960 | PL_formtarget = Nullsv; | |
961 | ||
d33b2eba | 962 | /* free locale stuff */ |
b9582b6a | 963 | #ifdef USE_LOCALE_COLLATE |
d33b2eba GS |
964 | Safefree(PL_collation_name); |
965 | PL_collation_name = Nullch; | |
b9582b6a | 966 | #endif |
d33b2eba | 967 | |
b9582b6a | 968 | #ifdef USE_LOCALE_NUMERIC |
d33b2eba GS |
969 | Safefree(PL_numeric_name); |
970 | PL_numeric_name = Nullch; | |
a453c169 | 971 | SvREFCNT_dec(PL_numeric_radix_sv); |
bf9cdc68 | 972 | PL_numeric_radix_sv = Nullsv; |
b9582b6a | 973 | #endif |
d33b2eba | 974 | |
5c831c24 GS |
975 | /* clear utf8 character classes */ |
976 | SvREFCNT_dec(PL_utf8_alnum); | |
977 | SvREFCNT_dec(PL_utf8_alnumc); | |
978 | SvREFCNT_dec(PL_utf8_ascii); | |
979 | SvREFCNT_dec(PL_utf8_alpha); | |
980 | SvREFCNT_dec(PL_utf8_space); | |
981 | SvREFCNT_dec(PL_utf8_cntrl); | |
982 | SvREFCNT_dec(PL_utf8_graph); | |
983 | SvREFCNT_dec(PL_utf8_digit); | |
984 | SvREFCNT_dec(PL_utf8_upper); | |
985 | SvREFCNT_dec(PL_utf8_lower); | |
986 | SvREFCNT_dec(PL_utf8_print); | |
987 | SvREFCNT_dec(PL_utf8_punct); | |
988 | SvREFCNT_dec(PL_utf8_xdigit); | |
989 | SvREFCNT_dec(PL_utf8_mark); | |
990 | SvREFCNT_dec(PL_utf8_toupper); | |
4dbdbdc2 | 991 | SvREFCNT_dec(PL_utf8_totitle); |
5c831c24 | 992 | SvREFCNT_dec(PL_utf8_tolower); |
b4e400f9 | 993 | SvREFCNT_dec(PL_utf8_tofold); |
82686b01 JH |
994 | SvREFCNT_dec(PL_utf8_idstart); |
995 | SvREFCNT_dec(PL_utf8_idcont); | |
5c831c24 GS |
996 | PL_utf8_alnum = Nullsv; |
997 | PL_utf8_alnumc = Nullsv; | |
998 | PL_utf8_ascii = Nullsv; | |
999 | PL_utf8_alpha = Nullsv; | |
1000 | PL_utf8_space = Nullsv; | |
1001 | PL_utf8_cntrl = Nullsv; | |
1002 | PL_utf8_graph = Nullsv; | |
1003 | PL_utf8_digit = Nullsv; | |
1004 | PL_utf8_upper = Nullsv; | |
1005 | PL_utf8_lower = Nullsv; | |
1006 | PL_utf8_print = Nullsv; | |
1007 | PL_utf8_punct = Nullsv; | |
1008 | PL_utf8_xdigit = Nullsv; | |
1009 | PL_utf8_mark = Nullsv; | |
1010 | PL_utf8_toupper = Nullsv; | |
1011 | PL_utf8_totitle = Nullsv; | |
1012 | PL_utf8_tolower = Nullsv; | |
b4e400f9 | 1013 | PL_utf8_tofold = Nullsv; |
82686b01 JH |
1014 | PL_utf8_idstart = Nullsv; |
1015 | PL_utf8_idcont = Nullsv; | |
5c831c24 | 1016 | |
971a9dd3 GS |
1017 | if (!specialWARN(PL_compiling.cop_warnings)) |
1018 | SvREFCNT_dec(PL_compiling.cop_warnings); | |
5c831c24 | 1019 | PL_compiling.cop_warnings = Nullsv; |
ac27b0f5 NIS |
1020 | if (!specialCopIO(PL_compiling.cop_io)) |
1021 | SvREFCNT_dec(PL_compiling.cop_io); | |
1022 | PL_compiling.cop_io = Nullsv; | |
05ec9bb3 NIS |
1023 | CopFILE_free(&PL_compiling); |
1024 | CopSTASH_free(&PL_compiling); | |
5c831c24 | 1025 | |
a0d0e21e | 1026 | /* Prepare to destruct main symbol table. */ |
5f05dabc | 1027 | |
3280af22 NIS |
1028 | hv = PL_defstash; |
1029 | PL_defstash = 0; | |
a0d0e21e | 1030 | SvREFCNT_dec(hv); |
5c831c24 GS |
1031 | SvREFCNT_dec(PL_curstname); |
1032 | PL_curstname = Nullsv; | |
a0d0e21e | 1033 | |
5a844595 GS |
1034 | /* clear queued errors */ |
1035 | SvREFCNT_dec(PL_errors); | |
1036 | PL_errors = Nullsv; | |
1037 | ||
a0d0e21e | 1038 | FREETMPS; |
0453d815 | 1039 | if (destruct_level >= 2 && ckWARN_d(WARN_INTERNAL)) { |
3280af22 | 1040 | if (PL_scopestack_ix != 0) |
9014280d | 1041 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
0453d815 | 1042 | "Unbalanced scopes: %ld more ENTERs than LEAVEs\n", |
3280af22 NIS |
1043 | (long)PL_scopestack_ix); |
1044 | if (PL_savestack_ix != 0) | |
9014280d | 1045 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
0453d815 | 1046 | "Unbalanced saves: %ld more saves than restores\n", |
3280af22 NIS |
1047 | (long)PL_savestack_ix); |
1048 | if (PL_tmps_floor != -1) | |
9014280d | 1049 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced tmps: %ld more allocs than frees\n", |
3280af22 | 1050 | (long)PL_tmps_floor + 1); |
a0d0e21e | 1051 | if (cxstack_ix != -1) |
9014280d | 1052 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced context: %ld more PUSHes than POPs\n", |
ff0cee69 | 1053 | (long)cxstack_ix + 1); |
a0d0e21e | 1054 | } |
8990e307 LW |
1055 | |
1056 | /* Now absolutely destruct everything, somehow or other, loops or no. */ | |
d33b2eba | 1057 | SvFLAGS(PL_fdpid) |= SVTYPEMASK; /* don't clean out pid table now */ |
3280af22 | 1058 | SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
5226ed68 JH |
1059 | |
1060 | /* the 2 is for PL_fdpid and PL_strtab */ | |
1061 | while (PL_sv_count > 2 && sv_clean_all()) | |
1062 | ; | |
1063 | ||
d33b2eba GS |
1064 | SvFLAGS(PL_fdpid) &= ~SVTYPEMASK; |
1065 | SvFLAGS(PL_fdpid) |= SVt_PVAV; | |
3280af22 NIS |
1066 | SvFLAGS(PL_strtab) &= ~SVTYPEMASK; |
1067 | SvFLAGS(PL_strtab) |= SVt_PVHV; | |
d33b2eba | 1068 | |
d4777f27 GS |
1069 | AvREAL_off(PL_fdpid); /* no surviving entries */ |
1070 | SvREFCNT_dec(PL_fdpid); /* needed in io_close() */ | |
d33b2eba GS |
1071 | PL_fdpid = Nullav; |
1072 | ||
6c644e78 GS |
1073 | #ifdef HAVE_INTERP_INTERN |
1074 | sys_intern_clear(); | |
1075 | #endif | |
1076 | ||
6e72f9df | 1077 | /* Destruct the global string table. */ |
1078 | { | |
1079 | /* Yell and reset the HeVAL() slots that are still holding refcounts, | |
1080 | * so that sv_free() won't fail on them. | |
80459961 NC |
1081 | * Now that the global string table is using a single hunk of memory |
1082 | * for both HE and HEK, we either need to explicitly unshare it the | |
1083 | * correct way, or actually free things here. | |
6e72f9df | 1084 | */ |
80459961 NC |
1085 | I32 riter = 0; |
1086 | const I32 max = HvMAX(PL_strtab); | |
1087 | HE **array = HvARRAY(PL_strtab); | |
1088 | HE *hent = array[0]; | |
1089 | ||
6e72f9df | 1090 | for (;;) { |
0453d815 | 1091 | if (hent && ckWARN_d(WARN_INTERNAL)) { |
80459961 | 1092 | HE *next = HeNEXT(hent); |
9014280d | 1093 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
0453d815 | 1094 | "Unbalanced string table refcount: (%d) for \"%s\"", |
6e72f9df | 1095 | HeVAL(hent) - Nullsv, HeKEY(hent)); |
80459961 NC |
1096 | Safefree(hent); |
1097 | hent = next; | |
6e72f9df | 1098 | } |
1099 | if (!hent) { | |
1100 | if (++riter > max) | |
1101 | break; | |
1102 | hent = array[riter]; | |
1103 | } | |
1104 | } | |
80459961 NC |
1105 | |
1106 | Safefree(array); | |
1107 | HvARRAY(PL_strtab) = 0; | |
1108 | HvTOTALKEYS(PL_strtab) = 0; | |
1109 | HvFILL(PL_strtab) = 0; | |
6e72f9df | 1110 | } |
3280af22 | 1111 | SvREFCNT_dec(PL_strtab); |
6e72f9df | 1112 | |
e652bb2f | 1113 | #ifdef USE_ITHREADS |
c21d1a0f | 1114 | /* free the pointer tables used for cloning */ |
a0739874 | 1115 | ptr_table_free(PL_ptr_table); |
bf9cdc68 | 1116 | PL_ptr_table = (PTR_TBL_t*)NULL; |
53186e96 | 1117 | #endif |
a0739874 | 1118 | |
d33b2eba GS |
1119 | /* free special SVs */ |
1120 | ||
1121 | SvREFCNT(&PL_sv_yes) = 0; | |
1122 | sv_clear(&PL_sv_yes); | |
1123 | SvANY(&PL_sv_yes) = NULL; | |
4c5e2b0d | 1124 | SvFLAGS(&PL_sv_yes) = 0; |
d33b2eba GS |
1125 | |
1126 | SvREFCNT(&PL_sv_no) = 0; | |
1127 | sv_clear(&PL_sv_no); | |
1128 | SvANY(&PL_sv_no) = NULL; | |
4c5e2b0d | 1129 | SvFLAGS(&PL_sv_no) = 0; |
01724ea0 | 1130 | |
9f375a43 DM |
1131 | { |
1132 | int i; | |
1133 | for (i=0; i<=2; i++) { | |
1134 | SvREFCNT(PERL_DEBUG_PAD(i)) = 0; | |
1135 | sv_clear(PERL_DEBUG_PAD(i)); | |
1136 | SvANY(PERL_DEBUG_PAD(i)) = NULL; | |
1137 | SvFLAGS(PERL_DEBUG_PAD(i)) = 0; | |
1138 | } | |
1139 | } | |
1140 | ||
0453d815 | 1141 | if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL)) |
9014280d | 1142 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Scalars leaked: %ld\n", (long)PL_sv_count); |
6e72f9df | 1143 | |
eba0f806 DM |
1144 | #ifdef DEBUG_LEAKING_SCALARS |
1145 | if (PL_sv_count != 0) { | |
1146 | SV* sva; | |
1147 | SV* sv; | |
1148 | register SV* svend; | |
1149 | ||
1150 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { | |
1151 | svend = &sva[SvREFCNT(sva)]; | |
1152 | for (sv = sva + 1; sv < svend; ++sv) { | |
1153 | if (SvTYPE(sv) != SVTYPEMASK) { | |
a548cda8 | 1154 | PerlIO_printf(Perl_debug_log, "leaked: sv=0x%p" |
61b61456 | 1155 | " flags=0x%"UVxf |
fd0854ff DM |
1156 | " refcnt=%"UVuf pTHX__FORMAT "\n" |
1157 | "\tallocated at %s:%d %s %s%s\n", | |
1158 | sv, sv->sv_flags, sv->sv_refcnt pTHX__VALUE, | |
1159 | sv->sv_debug_file ? sv->sv_debug_file : "(unknown)", | |
1160 | sv->sv_debug_line, | |
1161 | sv->sv_debug_inpad ? "for" : "by", | |
1162 | sv->sv_debug_optype ? | |
1163 | PL_op_name[sv->sv_debug_optype]: "(none)", | |
1164 | sv->sv_debug_cloned ? " (cloned)" : "" | |
1165 | ); | |
2aa47728 | 1166 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
41e4abd8 | 1167 | Perl_dump_sv_child(aTHX_ sv); |
2aa47728 | 1168 | #endif |
eba0f806 DM |
1169 | } |
1170 | } | |
1171 | } | |
1172 | } | |
2aa47728 NC |
1173 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
1174 | { | |
1175 | int status; | |
1176 | fd_set rset; | |
1177 | /* Wait for up to 4 seconds for child to terminate. | |
1178 | This seems to be the least effort way of timing out on reaping | |
1179 | its exit status. */ | |
1180 | struct timeval waitfor = {4, 0}; | |
41e4abd8 | 1181 | int sock = PL_dumper_fd; |
2aa47728 NC |
1182 | |
1183 | shutdown(sock, 1); | |
1184 | FD_ZERO(&rset); | |
1185 | FD_SET(sock, &rset); | |
1186 | select(sock + 1, &rset, NULL, NULL, &waitfor); | |
1187 | waitpid(child, &status, WNOHANG); | |
1188 | close(sock); | |
1189 | } | |
1190 | #endif | |
eba0f806 | 1191 | #endif |
bf9cdc68 | 1192 | PL_sv_count = 0; |
eba0f806 DM |
1193 | |
1194 | ||
56a2bab7 | 1195 | #if defined(PERLIO_LAYERS) |
3a1ee7e8 NIS |
1196 | /* No more IO - including error messages ! */ |
1197 | PerlIO_cleanup(aTHX); | |
1198 | #endif | |
1199 | ||
9f4bd222 NIS |
1200 | /* sv_undef needs to stay immortal until after PerlIO_cleanup |
1201 | as currently layers use it rather than Nullsv as a marker | |
1202 | for no arg - and will try and SvREFCNT_dec it. | |
1203 | */ | |
1204 | SvREFCNT(&PL_sv_undef) = 0; | |
1205 | SvREADONLY_off(&PL_sv_undef); | |
1206 | ||
3280af22 | 1207 | Safefree(PL_origfilename); |
bf9cdc68 | 1208 | PL_origfilename = Nullch; |
3280af22 | 1209 | Safefree(PL_reg_start_tmp); |
bf9cdc68 RG |
1210 | PL_reg_start_tmp = (char**)NULL; |
1211 | PL_reg_start_tmpl = 0; | |
5c5e4c24 IZ |
1212 | if (PL_reg_curpm) |
1213 | Safefree(PL_reg_curpm); | |
82ba1be6 | 1214 | Safefree(PL_reg_poscache); |
dd28f7bb | 1215 | free_tied_hv_pool(); |
3280af22 | 1216 | Safefree(PL_op_mask); |
cf36064f | 1217 | Safefree(PL_psig_ptr); |
bf9cdc68 | 1218 | PL_psig_ptr = (SV**)NULL; |
cf36064f | 1219 | Safefree(PL_psig_name); |
bf9cdc68 | 1220 | PL_psig_name = (SV**)NULL; |
2c2666fc | 1221 | Safefree(PL_bitcount); |
bf9cdc68 | 1222 | PL_bitcount = Nullch; |
ce08f86c | 1223 | Safefree(PL_psig_pend); |
bf9cdc68 RG |
1224 | PL_psig_pend = (int*)NULL; |
1225 | PL_formfeed = Nullsv; | |
6e72f9df | 1226 | nuke_stacks(); |
bf9cdc68 RG |
1227 | PL_tainting = FALSE; |
1228 | PL_taint_warn = FALSE; | |
3280af22 | 1229 | PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */ |
bf9cdc68 | 1230 | PL_debug = 0; |
ac27b0f5 | 1231 | |
a0d0e21e | 1232 | DEBUG_P(debprofdump()); |
d33b2eba | 1233 | |
e5dd39fc | 1234 | #ifdef USE_REENTRANT_API |
10bc17b6 | 1235 | Perl_reentrant_free(aTHX); |
e5dd39fc AB |
1236 | #endif |
1237 | ||
612f20c3 GS |
1238 | sv_free_arenas(); |
1239 | ||
fc36a67e | 1240 | /* As the absolutely last thing, free the non-arena SV for mess() */ |
1241 | ||
3280af22 | 1242 | if (PL_mess_sv) { |
f350b448 NC |
1243 | /* we know that type == SVt_PVMG */ |
1244 | ||
9c63abab | 1245 | /* it could have accumulated taint magic */ |
f350b448 NC |
1246 | MAGIC* mg; |
1247 | MAGIC* moremagic; | |
1248 | for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) { | |
1249 | moremagic = mg->mg_moremagic; | |
1250 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global | |
1251 | && mg->mg_len >= 0) | |
1252 | Safefree(mg->mg_ptr); | |
1253 | Safefree(mg); | |
9c63abab | 1254 | } |
f350b448 | 1255 | |
fc36a67e | 1256 | /* we know that type >= SVt_PV */ |
8bd4d4c5 | 1257 | SvPV_free(PL_mess_sv); |
3280af22 NIS |
1258 | Safefree(SvANY(PL_mess_sv)); |
1259 | Safefree(PL_mess_sv); | |
1260 | PL_mess_sv = Nullsv; | |
fc36a67e | 1261 | } |
31d77e54 | 1262 | return STATUS_NATIVE_EXPORT; |
79072805 LW |
1263 | } |
1264 | ||
954c1994 GS |
1265 | /* |
1266 | =for apidoc perl_free | |
1267 | ||
1268 | Releases a Perl interpreter. See L<perlembed>. | |
1269 | ||
1270 | =cut | |
1271 | */ | |
1272 | ||
79072805 | 1273 | void |
0cb96387 | 1274 | perl_free(pTHXx) |
79072805 | 1275 | { |
acfe0abc | 1276 | #if defined(WIN32) || defined(NETWARE) |
ce3e5b80 | 1277 | # if defined(PERL_IMPLICIT_SYS) |
acfe0abc GS |
1278 | # ifdef NETWARE |
1279 | void *host = nw_internal_host; | |
1280 | # else | |
1281 | void *host = w32_internal_host; | |
1282 | # endif | |
ce3e5b80 | 1283 | PerlMem_free(aTHXx); |
acfe0abc | 1284 | # ifdef NETWARE |
011f1a1a | 1285 | nw_delete_internal_host(host); |
acfe0abc GS |
1286 | # else |
1287 | win32_delete_internal_host(host); | |
1288 | # endif | |
1c0ca838 GS |
1289 | # else |
1290 | PerlMem_free(aTHXx); | |
1291 | # endif | |
acfe0abc GS |
1292 | #else |
1293 | PerlMem_free(aTHXx); | |
76e3520e | 1294 | #endif |
79072805 LW |
1295 | } |
1296 | ||
aebd1ac7 GA |
1297 | #if defined(USE_5005THREADS) || defined(USE_ITHREADS) |
1298 | /* provide destructors to clean up the thread key when libperl is unloaded */ | |
1299 | #ifndef WIN32 /* handled during DLL_PROCESS_DETACH in win32/perllib.c */ | |
1300 | ||
110d3f98 | 1301 | #if defined(__hpux) && __ux_version > 1020 && !defined(__GNUC__) |
aebd1ac7 GA |
1302 | #pragma fini "perl_fini" |
1303 | #endif | |
1304 | ||
0dbb1585 AL |
1305 | static void |
1306 | #if defined(__GNUC__) | |
1307 | __attribute__((destructor)) | |
aebd1ac7 | 1308 | #endif |
de009b76 | 1309 | perl_fini(void) |
aebd1ac7 | 1310 | { |
27da23d5 | 1311 | dVAR; |
aebd1ac7 GA |
1312 | if (PL_curinterp) |
1313 | FREE_THREAD_KEY; | |
1314 | } | |
1315 | ||
1316 | #endif /* WIN32 */ | |
1317 | #endif /* THREADS */ | |
1318 | ||
4b556e6c | 1319 | void |
864dbfa3 | 1320 | Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr) |
4b556e6c | 1321 | { |
3280af22 NIS |
1322 | Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry); |
1323 | PL_exitlist[PL_exitlistlen].fn = fn; | |
1324 | PL_exitlist[PL_exitlistlen].ptr = ptr; | |
1325 | ++PL_exitlistlen; | |
4b556e6c JD |
1326 | } |
1327 | ||
56cf6df8 RGS |
1328 | #ifdef HAS_PROCSELFEXE |
1329 | /* This is a function so that we don't hold on to MAXPATHLEN | |
1330 | bytes of stack longer than necessary | |
1331 | */ | |
1332 | STATIC void | |
e1ec3a88 | 1333 | S_procself_val(pTHX_ SV *sv, const char *arg0) |
56cf6df8 RGS |
1334 | { |
1335 | char buf[MAXPATHLEN]; | |
1336 | int len = readlink(PROCSELFEXE_PATH, buf, sizeof(buf) - 1); | |
1337 | ||
1338 | /* On Playstation2 Linux V1.0 (kernel 2.2.1) readlink(/proc/self/exe) | |
1339 | includes a spurious NUL which will cause $^X to fail in system | |
1340 | or backticks (this will prevent extensions from being built and | |
1341 | many tests from working). readlink is not meant to add a NUL. | |
1342 | Normal readlink works fine. | |
1343 | */ | |
1344 | if (len > 0 && buf[len-1] == '\0') { | |
1345 | len--; | |
1346 | } | |
1347 | ||
1348 | /* FreeBSD's implementation is acknowledged to be imperfect, sometimes | |
1349 | returning the text "unknown" from the readlink rather than the path | |
1350 | to the executable (or returning an error from the readlink). Any valid | |
1351 | path has a '/' in it somewhere, so use that to validate the result. | |
1352 | See http://www.freebsd.org/cgi/query-pr.cgi?pr=35703 | |
1353 | */ | |
1354 | if (len > 0 && memchr(buf, '/', len)) { | |
1355 | sv_setpvn(sv,buf,len); | |
1356 | } | |
1357 | else { | |
1358 | sv_setpv(sv,arg0); | |
1359 | } | |
1360 | } | |
1361 | #endif /* HAS_PROCSELFEXE */ | |
b7975bdd NC |
1362 | |
1363 | STATIC void | |
1364 | S_set_caret_X(pTHX) { | |
1365 | GV* tmpgv = gv_fetchpv("\030",TRUE, SVt_PV); /* $^X */ | |
1366 | if (tmpgv) { | |
1367 | #ifdef HAS_PROCSELFEXE | |
1368 | S_procself_val(aTHX_ GvSV(tmpgv), PL_origargv[0]); | |
1369 | #else | |
1370 | #ifdef OS2 | |
1371 | sv_setpv(GvSV(tmpgv), os2_execname(aTHX)); | |
1372 | #else | |
1373 | sv_setpv(GvSV(tmpgv),PL_origargv[0]); | |
1374 | #endif | |
1375 | #endif | |
1376 | } | |
1377 | } | |
1378 | ||
954c1994 GS |
1379 | /* |
1380 | =for apidoc perl_parse | |
1381 | ||
1382 | Tells a Perl interpreter to parse a Perl script. See L<perlembed>. | |
1383 | ||
1384 | =cut | |
1385 | */ | |
1386 | ||
79072805 | 1387 | int |
0cb96387 | 1388 | perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env) |
8d063cd8 | 1389 | { |
27da23d5 | 1390 | dVAR; |
6224f72b | 1391 | I32 oldscope; |
6224f72b | 1392 | int ret; |
db36c5a1 | 1393 | dJMPENV; |
8d063cd8 | 1394 | |
a687059c LW |
1395 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
1396 | #ifdef IAMSUID | |
1397 | #undef IAMSUID | |
cea2e8a9 | 1398 | Perl_croak(aTHX_ "suidperl is no longer needed since the kernel can now execute\n\ |
a687059c | 1399 | setuid perl scripts securely.\n"); |
ae3f3efd | 1400 | #endif /* IAMSUID */ |
a687059c LW |
1401 | #endif |
1402 | ||
b0891165 JH |
1403 | #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) |
1404 | /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0 | |
103dd899 | 1405 | * This MUST be done before any hash stores or fetches take place. |
008fb0c0 NC |
1406 | * If you set PL_rehash_seed (and assumedly also PL_rehash_seed_set) |
1407 | * yourself, it is your responsibility to provide a good random seed! | |
830b38bd | 1408 | * You can also define PERL_HASH_SEED in compile time, see hv.h. */ |
008fb0c0 NC |
1409 | if (!PL_rehash_seed_set) |
1410 | PL_rehash_seed = get_hash_seed(); | |
b0891165 | 1411 | { |
1b6737cc | 1412 | const char *s = PerlEnv_getenv("PERL_HASH_SEED_DEBUG"); |
bed60192 | 1413 | |
1b6737cc AL |
1414 | if (s && (atoi(s) == 1)) |
1415 | PerlIO_printf(Perl_debug_log, "HASH_SEED = %"UVuf"\n", PL_rehash_seed); | |
b0891165 JH |
1416 | } |
1417 | #endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */ | |
1418 | ||
3280af22 | 1419 | PL_origargc = argc; |
e2975953 | 1420 | PL_origargv = argv; |
a0d0e21e | 1421 | |
54bfe034 | 1422 | { |
3cb9023d JH |
1423 | /* Set PL_origalen be the sum of the contiguous argv[] |
1424 | * elements plus the size of the env in case that it is | |
e9137a8e | 1425 | * contiguous with the argv[]. This is used in mg.c:Perl_magic_set() |
3cb9023d JH |
1426 | * as the maximum modifiable length of $0. In the worst case |
1427 | * the area we are able to modify is limited to the size of | |
43c32782 | 1428 | * the original argv[0]. (See below for 'contiguous', though.) |
3cb9023d | 1429 | * --jhi */ |
e1ec3a88 | 1430 | const char *s = NULL; |
54bfe034 | 1431 | int i; |
1b6737cc | 1432 | const UV mask = |
7d8e7db3 | 1433 | ~(UV)(PTRSIZE == 4 ? 3 : PTRSIZE == 8 ? 7 : PTRSIZE == 16 ? 15 : 0); |
43c32782 | 1434 | /* Do the mask check only if the args seem like aligned. */ |
1b6737cc | 1435 | const UV aligned = |
43c32782 JH |
1436 | (mask < ~(UV)0) && ((PTR2UV(argv[0]) & mask) == PTR2UV(argv[0])); |
1437 | ||
1438 | /* See if all the arguments are contiguous in memory. Note | |
1439 | * that 'contiguous' is a loose term because some platforms | |
1440 | * align the argv[] and the envp[]. If the arguments look | |
1441 | * like non-aligned, assume that they are 'strictly' or | |
1442 | * 'traditionally' contiguous. If the arguments look like | |
1443 | * aligned, we just check that they are within aligned | |
1444 | * PTRSIZE bytes. As long as no system has something bizarre | |
1445 | * like the argv[] interleaved with some other data, we are | |
1446 | * fine. (Did I just evoke Murphy's Law?) --jhi */ | |
c8941eeb JH |
1447 | if (PL_origargv && PL_origargc >= 1 && (s = PL_origargv[0])) { |
1448 | while (*s) s++; | |
1449 | for (i = 1; i < PL_origargc; i++) { | |
1450 | if ((PL_origargv[i] == s + 1 | |
43c32782 | 1451 | #ifdef OS2 |
c8941eeb | 1452 | || PL_origargv[i] == s + 2 |
43c32782 | 1453 | #endif |
c8941eeb JH |
1454 | ) |
1455 | || | |
1456 | (aligned && | |
1457 | (PL_origargv[i] > s && | |
1458 | PL_origargv[i] <= | |
1459 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1460 | ) | |
1461 | { | |
1462 | s = PL_origargv[i]; | |
1463 | while (*s) s++; | |
1464 | } | |
1465 | else | |
1466 | break; | |
54bfe034 | 1467 | } |
54bfe034 | 1468 | } |
3cb9023d | 1469 | /* Can we grab env area too to be used as the area for $0? */ |
43c32782 JH |
1470 | if (PL_origenviron) { |
1471 | if ((PL_origenviron[0] == s + 1 | |
1472 | #ifdef OS2 | |
1473 | || (PL_origenviron[0] == s + 9 && (s += 8)) | |
1474 | #endif | |
1475 | ) | |
1476 | || | |
1477 | (aligned && | |
1478 | (PL_origenviron[0] > s && | |
1479 | PL_origenviron[0] <= | |
1480 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1481 | ) | |
1482 | { | |
1483 | #ifndef OS2 | |
1484 | s = PL_origenviron[0]; | |
1485 | while (*s) s++; | |
1486 | #endif | |
1487 | my_setenv("NoNe SuCh", Nullch); | |
1488 | /* Force copy of environment. */ | |
1489 | for (i = 1; PL_origenviron[i]; i++) { | |
1490 | if (PL_origenviron[i] == s + 1 | |
1491 | || | |
1492 | (aligned && | |
1493 | (PL_origenviron[i] > s && | |
1494 | PL_origenviron[i] <= | |
1495 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1496 | ) | |
1497 | { | |
1498 | s = PL_origenviron[i]; | |
1499 | while (*s) s++; | |
1500 | } | |
1501 | else | |
1502 | break; | |
54bfe034 | 1503 | } |
43c32782 | 1504 | } |
54bfe034 | 1505 | } |
284e1220 | 1506 | PL_origalen = s - PL_origargv[0] + 1; |
54bfe034 JH |
1507 | } |
1508 | ||
3280af22 | 1509 | if (PL_do_undump) { |
a0d0e21e LW |
1510 | |
1511 | /* Come here if running an undumped a.out. */ | |
1512 | ||
3280af22 NIS |
1513 | PL_origfilename = savepv(argv[0]); |
1514 | PL_do_undump = FALSE; | |
a0d0e21e | 1515 | cxstack_ix = -1; /* start label stack again */ |
748a9306 | 1516 | init_ids(); |
b7975bdd NC |
1517 | assert (!PL_tainted); |
1518 | TAINT; | |
1519 | S_set_caret_X(aTHX); | |
1520 | TAINT_NOT; | |
a0d0e21e LW |
1521 | init_postdump_symbols(argc,argv,env); |
1522 | return 0; | |
1523 | } | |
1524 | ||
3280af22 | 1525 | if (PL_main_root) { |
3280af22 NIS |
1526 | op_free(PL_main_root); |
1527 | PL_main_root = Nullop; | |
ff0cee69 | 1528 | } |
3280af22 NIS |
1529 | PL_main_start = Nullop; |
1530 | SvREFCNT_dec(PL_main_cv); | |
1531 | PL_main_cv = Nullcv; | |
79072805 | 1532 | |
3280af22 NIS |
1533 | time(&PL_basetime); |
1534 | oldscope = PL_scopestack_ix; | |
599cee73 | 1535 | PL_dowarn = G_WARN_OFF; |
f86702cc | 1536 | |
14dd3ad8 | 1537 | JMPENV_PUSH(ret); |
6224f72b | 1538 | switch (ret) { |
312caa8e | 1539 | case 0: |
14dd3ad8 | 1540 | parse_body(env,xsinit); |
7d30b5c4 GS |
1541 | if (PL_checkav) |
1542 | call_list(oldscope, PL_checkav); | |
14dd3ad8 GS |
1543 | ret = 0; |
1544 | break; | |
6224f72b GS |
1545 | case 1: |
1546 | STATUS_ALL_FAILURE; | |
1547 | /* FALL THROUGH */ | |
1548 | case 2: | |
1549 | /* my_exit() was called */ | |
3280af22 | 1550 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
1551 | LEAVE; |
1552 | FREETMPS; | |
3280af22 | 1553 | PL_curstash = PL_defstash; |
7d30b5c4 GS |
1554 | if (PL_checkav) |
1555 | call_list(oldscope, PL_checkav); | |
14dd3ad8 GS |
1556 | ret = STATUS_NATIVE_EXPORT; |
1557 | break; | |
6224f72b | 1558 | case 3: |
bf49b057 | 1559 | PerlIO_printf(Perl_error_log, "panic: top_env\n"); |
14dd3ad8 GS |
1560 | ret = 1; |
1561 | break; | |
6224f72b | 1562 | } |
14dd3ad8 GS |
1563 | JMPENV_POP; |
1564 | return ret; | |
1565 | } | |
1566 | ||
312caa8e | 1567 | STATIC void * |
14dd3ad8 | 1568 | S_parse_body(pTHX_ char **env, XSINIT_t xsinit) |
312caa8e | 1569 | { |
27da23d5 | 1570 | dVAR; |
312caa8e | 1571 | int argc = PL_origargc; |
8f42b153 | 1572 | char **argv = PL_origargv; |
e1ec3a88 | 1573 | const char *scriptname = NULL; |
312caa8e | 1574 | VOL bool dosearch = FALSE; |
e1ec3a88 | 1575 | const char *validarg = ""; |
312caa8e CS |
1576 | register SV *sv; |
1577 | register char *s; | |
e1ec3a88 | 1578 | const char *cddir = Nullch; |
ab019eaa | 1579 | #ifdef USE_SITECUSTOMIZE |
20ef40cf | 1580 | bool minus_f = FALSE; |
ab019eaa | 1581 | #endif |
312caa8e | 1582 | |
ae3f3efd PS |
1583 | PL_fdscript = -1; |
1584 | PL_suidscript = -1; | |
3280af22 | 1585 | sv_setpvn(PL_linestr,"",0); |
79cb57f6 | 1586 | sv = newSVpvn("",0); /* first used for -I flags */ |
6224f72b GS |
1587 | SAVEFREESV(sv); |
1588 | init_main_stash(); | |
54310121 | 1589 | |
6224f72b GS |
1590 | for (argc--,argv++; argc > 0; argc--,argv++) { |
1591 | if (argv[0][0] != '-' || !argv[0][1]) | |
1592 | break; | |
1593 | #ifdef DOSUID | |
1594 | if (*validarg) | |
1595 | validarg = " PHOOEY "; | |
1596 | else | |
1597 | validarg = argv[0]; | |
ae3f3efd PS |
1598 | /* |
1599 | * Can we rely on the kernel to start scripts with argv[1] set to | |
1600 | * contain all #! line switches (the whole line)? (argv[0] is set to | |
1601 | * the interpreter name, argv[2] to the script name; argv[3] and | |
1602 | * above may contain other arguments.) | |
1603 | */ | |
13281fa4 | 1604 | #endif |
6224f72b GS |
1605 | s = argv[0]+1; |
1606 | reswitch: | |
1607 | switch (*s) { | |
729a02f2 | 1608 | case 'C': |
1d5472a9 GS |
1609 | #ifndef PERL_STRICT_CR |
1610 | case '\r': | |
1611 | #endif | |
6224f72b GS |
1612 | case ' ': |
1613 | case '0': | |
1614 | case 'F': | |
1615 | case 'a': | |
1616 | case 'c': | |
1617 | case 'd': | |
1618 | case 'D': | |
1619 | case 'h': | |
1620 | case 'i': | |
1621 | case 'l': | |
1622 | case 'M': | |
1623 | case 'm': | |
1624 | case 'n': | |
1625 | case 'p': | |
1626 | case 's': | |
1627 | case 'u': | |
1628 | case 'U': | |
1629 | case 'v': | |
599cee73 PM |
1630 | case 'W': |
1631 | case 'X': | |
6224f72b | 1632 | case 'w': |
06492da6 | 1633 | case 'A': |
155aba94 | 1634 | if ((s = moreswitches(s))) |
6224f72b GS |
1635 | goto reswitch; |
1636 | break; | |
33b78306 | 1637 | |
1dbad523 | 1638 | case 't': |
22f7c9c9 | 1639 | CHECK_MALLOC_TOO_LATE_FOR('t'); |
317ea90d MS |
1640 | if( !PL_tainting ) { |
1641 | PL_taint_warn = TRUE; | |
1642 | PL_tainting = TRUE; | |
1643 | } | |
1644 | s++; | |
1645 | goto reswitch; | |
6224f72b | 1646 | case 'T': |
22f7c9c9 | 1647 | CHECK_MALLOC_TOO_LATE_FOR('T'); |
3280af22 | 1648 | PL_tainting = TRUE; |
317ea90d | 1649 | PL_taint_warn = FALSE; |
6224f72b GS |
1650 | s++; |
1651 | goto reswitch; | |
f86702cc | 1652 | |
6224f72b | 1653 | case 'e': |
bf4acbe4 GS |
1654 | #ifdef MACOS_TRADITIONAL |
1655 | /* ignore -e for Dev:Pseudo argument */ | |
1656 | if (argv[1] && !strcmp(argv[1], "Dev:Pseudo")) | |
e55ac0fa | 1657 | break; |
bf4acbe4 | 1658 | #endif |
ae3f3efd | 1659 | forbid_setid("-e"); |
3280af22 | 1660 | if (!PL_e_script) { |
79cb57f6 | 1661 | PL_e_script = newSVpvn("",0); |
0cb96387 | 1662 | filter_add(read_e_script, NULL); |
6224f72b GS |
1663 | } |
1664 | if (*++s) | |
3280af22 | 1665 | sv_catpv(PL_e_script, s); |
6224f72b | 1666 | else if (argv[1]) { |
3280af22 | 1667 | sv_catpv(PL_e_script, argv[1]); |
6224f72b GS |
1668 | argc--,argv++; |
1669 | } | |
1670 | else | |
cea2e8a9 | 1671 | Perl_croak(aTHX_ "No code specified for -e"); |
3280af22 | 1672 | sv_catpv(PL_e_script, "\n"); |
6224f72b | 1673 | break; |
afe37c7d | 1674 | |
20ef40cf | 1675 | case 'f': |
f5542d3a | 1676 | #ifdef USE_SITECUSTOMIZE |
20ef40cf | 1677 | minus_f = TRUE; |
f5542d3a | 1678 | #endif |
20ef40cf GA |
1679 | s++; |
1680 | goto reswitch; | |
1681 | ||
6224f72b GS |
1682 | case 'I': /* -I handled both here and in moreswitches() */ |
1683 | forbid_setid("-I"); | |
1684 | if (!*++s && (s=argv[1]) != Nullch) { | |
1685 | argc--,argv++; | |
1686 | } | |
6224f72b | 1687 | if (s && *s) { |
0df16ed7 GS |
1688 | char *p; |
1689 | STRLEN len = strlen(s); | |
1690 | p = savepvn(s, len); | |
88fe16b2 | 1691 | incpush(p, TRUE, TRUE, FALSE, FALSE); |
0df16ed7 GS |
1692 | sv_catpvn(sv, "-I", 2); |
1693 | sv_catpvn(sv, p, len); | |
1694 | sv_catpvn(sv, " ", 1); | |
6224f72b | 1695 | Safefree(p); |
0df16ed7 GS |
1696 | } |
1697 | else | |
a67e862a | 1698 | Perl_croak(aTHX_ "No directory specified for -I"); |
6224f72b GS |
1699 | break; |
1700 | case 'P': | |
1701 | forbid_setid("-P"); | |
3280af22 | 1702 | PL_preprocess = TRUE; |
6224f72b GS |
1703 | s++; |
1704 | goto reswitch; | |
1705 | case 'S': | |
1706 | forbid_setid("-S"); | |
1707 | dosearch = TRUE; | |
1708 | s++; | |
1709 | goto reswitch; | |
1710 | case 'V': | |
3280af22 NIS |
1711 | if (!PL_preambleav) |
1712 | PL_preambleav = newAV(); | |
1713 | av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0)); | |
6224f72b | 1714 | if (*++s != ':') { |
efcaa95b YST |
1715 | STRLEN opts; |
1716 | ||
3280af22 | 1717 | PL_Sv = newSVpv("print myconfig();",0); |
6224f72b | 1718 | #ifdef VMS |
6b88bc9c | 1719 | sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\","); |
6224f72b | 1720 | #else |
3280af22 | 1721 | sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\","); |
6224f72b | 1722 | #endif |
efcaa95b YST |
1723 | opts = SvCUR(PL_Sv); |
1724 | ||
3280af22 | 1725 | sv_catpv(PL_Sv,"\" Compile-time options:"); |
6224f72b | 1726 | # ifdef DEBUGGING |
3280af22 | 1727 | sv_catpv(PL_Sv," DEBUGGING"); |
6224f72b | 1728 | # endif |
6224f72b | 1729 | # ifdef MULTIPLICITY |
8f872242 | 1730 | sv_catpv(PL_Sv," MULTIPLICITY"); |
6224f72b | 1731 | # endif |
4d1ff10f AB |
1732 | # ifdef USE_5005THREADS |
1733 | sv_catpv(PL_Sv," USE_5005THREADS"); | |
b363f7ed | 1734 | # endif |
ac5e8965 JH |
1735 | # ifdef USE_ITHREADS |
1736 | sv_catpv(PL_Sv," USE_ITHREADS"); | |
1737 | # endif | |
10cc9d2a JH |
1738 | # ifdef USE_64_BIT_INT |
1739 | sv_catpv(PL_Sv," USE_64_BIT_INT"); | |
1740 | # endif | |
1741 | # ifdef USE_64_BIT_ALL | |
1742 | sv_catpv(PL_Sv," USE_64_BIT_ALL"); | |
ac5e8965 JH |
1743 | # endif |
1744 | # ifdef USE_LONG_DOUBLE | |
1745 | sv_catpv(PL_Sv," USE_LONG_DOUBLE"); | |
1746 | # endif | |
53430762 JH |
1747 | # ifdef USE_LARGE_FILES |
1748 | sv_catpv(PL_Sv," USE_LARGE_FILES"); | |
1749 | # endif | |
ac5e8965 JH |
1750 | # ifdef USE_SOCKS |
1751 | sv_catpv(PL_Sv," USE_SOCKS"); | |
1752 | # endif | |
20ef40cf GA |
1753 | # ifdef USE_SITECUSTOMIZE |
1754 | sv_catpv(PL_Sv," USE_SITECUSTOMIZE"); | |
1755 | # endif | |
b363f7ed GS |
1756 | # ifdef PERL_IMPLICIT_CONTEXT |
1757 | sv_catpv(PL_Sv," PERL_IMPLICIT_CONTEXT"); | |
1758 | # endif | |
1759 | # ifdef PERL_IMPLICIT_SYS | |
1760 | sv_catpv(PL_Sv," PERL_IMPLICIT_SYS"); | |
1761 | # endif | |
efcaa95b YST |
1762 | |
1763 | while (SvCUR(PL_Sv) > opts+76) { | |
1764 | /* find last space after "options: " and before col 76 */ | |
1765 | ||
dd374669 AL |
1766 | const char *space; |
1767 | char *pv = SvPV_nolen(PL_Sv); | |
1768 | const char c = pv[opts+76]; | |
efcaa95b YST |
1769 | pv[opts+76] = '\0'; |
1770 | space = strrchr(pv+opts+26, ' '); | |
1771 | pv[opts+76] = c; | |
1772 | if (!space) break; /* "Can't happen" */ | |
1773 | ||
1774 | /* break the line before that space */ | |
1775 | ||
1776 | opts = space - pv; | |
1777 | sv_insert(PL_Sv, opts, 0, | |
1778 | "\\n ", 25); | |
1779 | } | |
1780 | ||
3280af22 | 1781 | sv_catpv(PL_Sv,"\\n\","); |
b363f7ed | 1782 | |
6224f72b GS |
1783 | #if defined(LOCAL_PATCH_COUNT) |
1784 | if (LOCAL_PATCH_COUNT > 0) { | |
1785 | int i; | |
3280af22 | 1786 | sv_catpv(PL_Sv,"\" Locally applied patches:\\n\","); |
6224f72b | 1787 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { |
3280af22 | 1788 | if (PL_localpatches[i]) |
acb03d05 AB |
1789 | Perl_sv_catpvf(aTHX_ PL_Sv,"q%c\t%s\n%c,", |
1790 | 0, PL_localpatches[i], 0); | |
6224f72b GS |
1791 | } |
1792 | } | |
1793 | #endif | |
cea2e8a9 | 1794 | Perl_sv_catpvf(aTHX_ PL_Sv,"\" Built under %s\\n\"",OSNAME); |
6224f72b GS |
1795 | #ifdef __DATE__ |
1796 | # ifdef __TIME__ | |
cea2e8a9 | 1797 | Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__); |
6224f72b | 1798 | # else |
cea2e8a9 | 1799 | Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled on %s\\n\"",__DATE__); |
6224f72b GS |
1800 | # endif |
1801 | #endif | |
3280af22 | 1802 | sv_catpv(PL_Sv, "; \ |
6224f72b | 1803 | $\"=\"\\n \"; \ |
69fcd688 JH |
1804 | @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; "); |
1805 | #ifdef __CYGWIN__ | |
1806 | sv_catpv(PL_Sv,"\ | |
1807 | push @env, \"CYGWIN=\\\"$ENV{CYGWIN}\\\"\";"); | |
1808 | #endif | |
1809 | sv_catpv(PL_Sv, "\ | |
6224f72b GS |
1810 | print \" \\%ENV:\\n @env\\n\" if @env; \ |
1811 | print \" \\@INC:\\n @INC\\n\";"); | |
1812 | } | |
1813 | else { | |
3280af22 NIS |
1814 | PL_Sv = newSVpv("config_vars(qw(",0); |
1815 | sv_catpv(PL_Sv, ++s); | |
1816 | sv_catpv(PL_Sv, "))"); | |
6224f72b GS |
1817 | s += strlen(s); |
1818 | } | |
3280af22 | 1819 | av_push(PL_preambleav, PL_Sv); |
6224f72b GS |
1820 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
1821 | goto reswitch; | |
1822 | case 'x': | |
3280af22 | 1823 | PL_doextract = TRUE; |
6224f72b GS |
1824 | s++; |
1825 | if (*s) | |
f4c556ac | 1826 | cddir = s; |
6224f72b GS |
1827 | break; |
1828 | case 0: | |
1829 | break; | |
1830 | case '-': | |
1831 | if (!*++s || isSPACE(*s)) { | |
1832 | argc--,argv++; | |
1833 | goto switch_end; | |
1834 | } | |
1835 | /* catch use of gnu style long options */ | |
1836 | if (strEQ(s, "version")) { | |
dd374669 | 1837 | s = (char *)"v"; |
6224f72b GS |
1838 | goto reswitch; |
1839 | } | |
1840 | if (strEQ(s, "help")) { | |
dd374669 | 1841 | s = (char *)"h"; |
6224f72b GS |
1842 | goto reswitch; |
1843 | } | |
1844 | s--; | |
1845 | /* FALL THROUGH */ | |
1846 | default: | |
cea2e8a9 | 1847 | Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s); |
8d063cd8 LW |
1848 | } |
1849 | } | |
6224f72b | 1850 | switch_end: |
54310121 | 1851 | |
f675dbe5 CB |
1852 | if ( |
1853 | #ifndef SECURE_INTERNAL_GETENV | |
1854 | !PL_tainting && | |
1855 | #endif | |
cf756827 | 1856 | (s = PerlEnv_getenv("PERL5OPT"))) |
0df16ed7 | 1857 | { |
e1ec3a88 | 1858 | const char *popt = s; |
74288ac8 GS |
1859 | while (isSPACE(*s)) |
1860 | s++; | |
317ea90d | 1861 | if (*s == '-' && *(s+1) == 'T') { |
22f7c9c9 | 1862 | CHECK_MALLOC_TOO_LATE_FOR('T'); |
74288ac8 | 1863 | PL_tainting = TRUE; |
317ea90d MS |
1864 | PL_taint_warn = FALSE; |
1865 | } | |
74288ac8 | 1866 | else { |
cf756827 | 1867 | char *popt_copy = Nullch; |
74288ac8 | 1868 | while (s && *s) { |
4ea8f8fb | 1869 | char *d; |
74288ac8 GS |
1870 | while (isSPACE(*s)) |
1871 | s++; | |
1872 | if (*s == '-') { | |
1873 | s++; | |
1874 | if (isSPACE(*s)) | |
1875 | continue; | |
1876 | } | |
4ea8f8fb | 1877 | d = s; |
74288ac8 GS |
1878 | if (!*s) |
1879 | break; | |
06492da6 | 1880 | if (!strchr("DIMUdmtwA", *s)) |
cea2e8a9 | 1881 | Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s); |
4ea8f8fb MS |
1882 | while (++s && *s) { |
1883 | if (isSPACE(*s)) { | |
cf756827 GS |
1884 | if (!popt_copy) { |
1885 | popt_copy = SvPVX(sv_2mortal(newSVpv(popt,0))); | |
1886 | s = popt_copy + (s - popt); | |
1887 | d = popt_copy + (d - popt); | |
1888 | } | |
4ea8f8fb MS |
1889 | *s++ = '\0'; |
1890 | break; | |
1891 | } | |
1892 | } | |
1c4db469 | 1893 | if (*d == 't') { |
317ea90d MS |
1894 | if( !PL_tainting ) { |
1895 | PL_taint_warn = TRUE; | |
1896 | PL_tainting = TRUE; | |
1897 | } | |
1c4db469 RGS |
1898 | } else { |
1899 | moreswitches(d); | |
1900 | } | |
6224f72b | 1901 | } |
6224f72b GS |
1902 | } |
1903 | } | |
a0d0e21e | 1904 | |
20ef40cf GA |
1905 | #ifdef USE_SITECUSTOMIZE |
1906 | if (!minus_f) { | |
1907 | if (!PL_preambleav) | |
1908 | PL_preambleav = newAV(); | |
1909 | av_unshift(PL_preambleav, 1); | |
1910 | (void)av_store(PL_preambleav, 0, Perl_newSVpvf(aTHX_ "BEGIN { do '%s/sitecustomize.pl' }", SITELIB_EXP)); | |
1911 | } | |
1912 | #endif | |
1913 | ||
317ea90d MS |
1914 | if (PL_taint_warn && PL_dowarn != G_WARN_ALL_OFF) { |
1915 | PL_compiling.cop_warnings = newSVpvn(WARN_TAINTstring, WARNsize); | |
1916 | } | |
1917 | ||
6224f72b GS |
1918 | if (!scriptname) |
1919 | scriptname = argv[0]; | |
3280af22 | 1920 | if (PL_e_script) { |
6224f72b GS |
1921 | argc++,argv--; |
1922 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ | |
1923 | } | |
1924 | else if (scriptname == Nullch) { | |
1925 | #ifdef MSDOS | |
1926 | if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) ) | |
1927 | moreswitches("h"); | |
1928 | #endif | |
1929 | scriptname = "-"; | |
1930 | } | |
1931 | ||
b7975bdd NC |
1932 | /* Set $^X early so that it can be used for relocatable paths in @INC */ |
1933 | assert (!PL_tainted); | |
1934 | TAINT; | |
1935 | S_set_caret_X(aTHX); | |
1936 | TAINT_NOT; | |
6224f72b GS |
1937 | init_perllib(); |
1938 | ||
c5cccb17 | 1939 | open_script(scriptname,dosearch,sv); |
6224f72b | 1940 | |
c5cccb17 | 1941 | validate_suid(validarg, scriptname); |
6224f72b | 1942 | |
64ca3a65 | 1943 | #ifndef PERL_MICRO |
0b5b802d GS |
1944 | #if defined(SIGCHLD) || defined(SIGCLD) |
1945 | { | |
1946 | #ifndef SIGCHLD | |
1947 | # define SIGCHLD SIGCLD | |
1948 | #endif | |
1949 | Sighandler_t sigstate = rsignal_state(SIGCHLD); | |
1950 | if (sigstate == SIG_IGN) { | |
1951 | if (ckWARN(WARN_SIGNAL)) | |
9014280d | 1952 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), |
0b5b802d GS |
1953 | "Can't ignore signal CHLD, forcing to default"); |
1954 | (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL); | |
1955 | } | |
1956 | } | |
1957 | #endif | |
64ca3a65 | 1958 | #endif |
0b5b802d | 1959 | |
bf4acbe4 GS |
1960 | #ifdef MACOS_TRADITIONAL |
1961 | if (PL_doextract || gMacPerl_AlwaysExtract) { | |
1962 | #else | |
f4c556ac | 1963 | if (PL_doextract) { |
bf4acbe4 | 1964 | #endif |
6224f72b | 1965 | find_beginning(); |
dd374669 | 1966 | if (cddir && PerlDir_chdir( (char *)cddir ) < 0) |
f4c556ac GS |
1967 | Perl_croak(aTHX_ "Can't chdir to %s",cddir); |
1968 | ||
1969 | } | |
6224f72b | 1970 | |
3280af22 NIS |
1971 | PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0); |
1972 | sv_upgrade((SV *)PL_compcv, SVt_PVCV); | |
1973 | CvUNIQUE_on(PL_compcv); | |
1974 | ||
dd2155a4 | 1975 | CvPADLIST(PL_compcv) = pad_new(0); |
4d1ff10f | 1976 | #ifdef USE_5005THREADS |
533c011a NIS |
1977 | CvOWNER(PL_compcv) = 0; |
1978 | New(666, CvMUTEXP(PL_compcv), 1, perl_mutex); | |
1979 | MUTEX_INIT(CvMUTEXP(PL_compcv)); | |
4d1ff10f | 1980 | #endif /* USE_5005THREADS */ |
6224f72b | 1981 | |
0c4f7ff0 | 1982 | boot_core_PerlIO(); |
6224f72b | 1983 | boot_core_UNIVERSAL(); |
09bef843 | 1984 | boot_core_xsutils(); |
6224f72b GS |
1985 | |
1986 | if (xsinit) | |
acfe0abc | 1987 | (*xsinit)(aTHX); /* in case linked C routines want magical variables */ |
64ca3a65 | 1988 | #ifndef PERL_MICRO |
ed79a026 | 1989 | #if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(EPOC) |
c5be433b | 1990 | init_os_extras(); |
6224f72b | 1991 | #endif |
64ca3a65 | 1992 | #endif |
6224f72b | 1993 | |
29209bc5 | 1994 | #ifdef USE_SOCKS |
1b9c9cf5 DH |
1995 | # ifdef HAS_SOCKS5_INIT |
1996 | socks5_init(argv[0]); | |
1997 | # else | |
29209bc5 | 1998 | SOCKSinit(argv[0]); |
1b9c9cf5 | 1999 | # endif |
ac27b0f5 | 2000 | #endif |
29209bc5 | 2001 | |
6224f72b GS |
2002 | init_predump_symbols(); |
2003 | /* init_postdump_symbols not currently designed to be called */ | |
2004 | /* more than once (ENV isn't cleared first, for example) */ | |
2005 | /* But running with -u leaves %ENV & @ARGV undefined! XXX */ | |
3280af22 | 2006 | if (!PL_do_undump) |
6224f72b GS |
2007 | init_postdump_symbols(argc,argv,env); |
2008 | ||
27da23d5 JH |
2009 | /* PL_unicode is turned on by -C, or by $ENV{PERL_UNICODE}, |
2010 | * or explicitly in some platforms. | |
085a54d9 | 2011 | * locale.c:Perl_init_i18nl10n() if the environment |
a05d7ebb | 2012 | * look like the user wants to use UTF-8. */ |
27da23d5 JH |
2013 | #if defined(SYMBIAN) |
2014 | PL_unicode = PERL_UNICODE_STD_FLAG; /* See PERL_SYMBIAN_CONSOLE_UTF8. */ | |
2015 | #endif | |
06e66572 JH |
2016 | if (PL_unicode) { |
2017 | /* Requires init_predump_symbols(). */ | |
a05d7ebb | 2018 | if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) { |
06e66572 JH |
2019 | IO* io; |
2020 | PerlIO* fp; | |
2021 | SV* sv; | |
2022 | ||
a05d7ebb | 2023 | /* Turn on UTF-8-ness on STDIN, STDOUT, STDERR |
06e66572 | 2024 | * and the default open disciplines. */ |
a05d7ebb JH |
2025 | if ((PL_unicode & PERL_UNICODE_STDIN_FLAG) && |
2026 | PL_stdingv && (io = GvIO(PL_stdingv)) && | |
2027 | (fp = IoIFP(io))) | |
2028 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2029 | if ((PL_unicode & PERL_UNICODE_STDOUT_FLAG) && | |
2030 | PL_defoutgv && (io = GvIO(PL_defoutgv)) && | |
2031 | (fp = IoOFP(io))) | |
2032 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2033 | if ((PL_unicode & PERL_UNICODE_STDERR_FLAG) && | |
2034 | PL_stderrgv && (io = GvIO(PL_stderrgv)) && | |
2035 | (fp = IoOFP(io))) | |
2036 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2037 | if ((PL_unicode & PERL_UNICODE_INOUT_FLAG) && | |
2038 | (sv = GvSV(gv_fetchpv("\017PEN", TRUE, SVt_PV)))) { | |
2039 | U32 in = PL_unicode & PERL_UNICODE_IN_FLAG; | |
2040 | U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG; | |
2041 | if (in) { | |
2042 | if (out) | |
2043 | sv_setpvn(sv, ":utf8\0:utf8", 11); | |
2044 | else | |
2045 | sv_setpvn(sv, ":utf8\0", 6); | |
2046 | } | |
2047 | else if (out) | |
2048 | sv_setpvn(sv, "\0:utf8", 6); | |
2049 | SvSETMAGIC(sv); | |
2050 | } | |
b310b053 JH |
2051 | } |
2052 | } | |
2053 | ||
4ffa73a3 JH |
2054 | if ((s = PerlEnv_getenv("PERL_SIGNALS"))) { |
2055 | if (strEQ(s, "unsafe")) | |
2056 | PL_signals |= PERL_SIGNALS_UNSAFE_FLAG; | |
2057 | else if (strEQ(s, "safe")) | |
2058 | PL_signals &= ~PERL_SIGNALS_UNSAFE_FLAG; | |
2059 | else | |
2060 | Perl_croak(aTHX_ "PERL_SIGNALS illegal: \"%s\"", s); | |
2061 | } | |
2062 | ||
6224f72b GS |
2063 | init_lexer(); |
2064 | ||
2065 | /* now parse the script */ | |
2066 | ||
93189314 | 2067 | SETERRNO(0,SS_NORMAL); |
3280af22 | 2068 | PL_error_count = 0; |
bf4acbe4 GS |
2069 | #ifdef MACOS_TRADITIONAL |
2070 | if (gMacPerl_SyntaxError = (yyparse() || PL_error_count)) { | |
2071 | if (PL_minus_c) | |
2072 | Perl_croak(aTHX_ "%s had compilation errors.\n", MacPerl_MPWFileName(PL_origfilename)); | |
2073 | else { | |
2074 | Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", | |
2075 | MacPerl_MPWFileName(PL_origfilename)); | |
2076 | } | |
2077 | } | |
2078 | #else | |
3280af22 NIS |
2079 | if (yyparse() || PL_error_count) { |
2080 | if (PL_minus_c) | |
cea2e8a9 | 2081 | Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename); |
6224f72b | 2082 | else { |
cea2e8a9 | 2083 | Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", |
097ee67d | 2084 | PL_origfilename); |
6224f72b GS |
2085 | } |
2086 | } | |
bf4acbe4 | 2087 | #endif |
57843af0 | 2088 | CopLINE_set(PL_curcop, 0); |
3280af22 NIS |
2089 | PL_curstash = PL_defstash; |
2090 | PL_preprocess = FALSE; | |
2091 | if (PL_e_script) { | |
2092 | SvREFCNT_dec(PL_e_script); | |
2093 | PL_e_script = Nullsv; | |
6224f72b GS |
2094 | } |
2095 | ||
3280af22 | 2096 | if (PL_do_undump) |
6224f72b GS |
2097 | my_unexec(); |
2098 | ||
57843af0 GS |
2099 | if (isWARN_ONCE) { |
2100 | SAVECOPFILE(PL_curcop); | |
2101 | SAVECOPLINE(PL_curcop); | |
3280af22 | 2102 | gv_check(PL_defstash); |
57843af0 | 2103 | } |
6224f72b GS |
2104 | |
2105 | LEAVE; | |
2106 | FREETMPS; | |
2107 | ||
2108 | #ifdef MYMALLOC | |
2109 | if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) | |
2110 | dump_mstats("after compilation:"); | |
2111 | #endif | |
2112 | ||
2113 | ENTER; | |
3280af22 | 2114 | PL_restartop = 0; |
312caa8e | 2115 | return NULL; |
6224f72b GS |
2116 | } |
2117 | ||
954c1994 GS |
2118 | /* |
2119 | =for apidoc perl_run | |
2120 | ||
2121 | Tells a Perl interpreter to run. See L<perlembed>. | |
2122 | ||
2123 | =cut | |
2124 | */ | |
2125 | ||
6224f72b | 2126 | int |
0cb96387 | 2127 | perl_run(pTHXx) |
6224f72b | 2128 | { |
6224f72b | 2129 | I32 oldscope; |
14dd3ad8 | 2130 | int ret = 0; |
db36c5a1 | 2131 | dJMPENV; |
6224f72b | 2132 | |
3280af22 | 2133 | oldscope = PL_scopestack_ix; |
96e176bf CL |
2134 | #ifdef VMS |
2135 | VMSISH_HUSHED = 0; | |
2136 | #endif | |
6224f72b | 2137 | |
14dd3ad8 | 2138 | JMPENV_PUSH(ret); |
6224f72b GS |
2139 | switch (ret) { |
2140 | case 1: | |
2141 | cxstack_ix = -1; /* start context stack again */ | |
312caa8e | 2142 | goto redo_body; |
14dd3ad8 | 2143 | case 0: /* normal completion */ |
14dd3ad8 GS |
2144 | redo_body: |
2145 | run_body(oldscope); | |
14dd3ad8 GS |
2146 | /* FALL THROUGH */ |
2147 | case 2: /* my_exit() */ | |
3280af22 | 2148 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
2149 | LEAVE; |
2150 | FREETMPS; | |
3280af22 | 2151 | PL_curstash = PL_defstash; |
3a1ee7e8 | 2152 | if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) && |
31d77e54 AB |
2153 | PL_endav && !PL_minus_c) |
2154 | call_list(oldscope, PL_endav); | |
6224f72b GS |
2155 | #ifdef MYMALLOC |
2156 | if (PerlEnv_getenv("PERL_DEBUG_MSTATS")) | |
2157 | dump_mstats("after execution: "); | |
2158 | #endif | |
14dd3ad8 GS |
2159 | ret = STATUS_NATIVE_EXPORT; |
2160 | break; | |
6224f72b | 2161 | case 3: |
312caa8e CS |
2162 | if (PL_restartop) { |
2163 | POPSTACK_TO(PL_mainstack); | |
2164 | goto redo_body; | |
6224f72b | 2165 | } |
bf49b057 | 2166 | PerlIO_printf(Perl_error_log, "panic: restartop\n"); |
312caa8e | 2167 | FREETMPS; |
14dd3ad8 GS |
2168 | ret = 1; |
2169 | break; | |
6224f72b GS |
2170 | } |
2171 | ||
14dd3ad8 GS |
2172 | JMPENV_POP; |
2173 | return ret; | |
312caa8e CS |
2174 | } |
2175 | ||
14dd3ad8 | 2176 | |
dd374669 | 2177 | STATIC void |
14dd3ad8 GS |
2178 | S_run_body(pTHX_ I32 oldscope) |
2179 | { | |
6224f72b | 2180 | DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n", |
3280af22 | 2181 | PL_sawampersand ? "Enabling" : "Omitting")); |
6224f72b | 2182 | |
3280af22 | 2183 | if (!PL_restartop) { |
6224f72b | 2184 | DEBUG_x(dump_all()); |
ecae49c0 NC |
2185 | if (!DEBUG_q_TEST) |
2186 | PERL_DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); | |
b900a521 JH |
2187 | DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%"UVxf"\n", |
2188 | PTR2UV(thr))); | |
6224f72b | 2189 | |
3280af22 | 2190 | if (PL_minus_c) { |
bf4acbe4 | 2191 | #ifdef MACOS_TRADITIONAL |
e69a2255 JH |
2192 | PerlIO_printf(Perl_error_log, "%s%s syntax OK\n", |
2193 | (gMacPerl_ErrorFormat ? "# " : ""), | |
2194 | MacPerl_MPWFileName(PL_origfilename)); | |
bf4acbe4 | 2195 | #else |
bf49b057 | 2196 | PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename); |
bf4acbe4 | 2197 | #endif |
6224f72b GS |
2198 | my_exit(0); |
2199 | } | |
3280af22 | 2200 | if (PERLDB_SINGLE && PL_DBsingle) |
ac27b0f5 | 2201 | sv_setiv(PL_DBsingle, 1); |
3280af22 NIS |
2202 | if (PL_initav) |
2203 | call_list(oldscope, PL_initav); | |
6224f72b GS |
2204 | } |
2205 | ||
2206 | /* do it */ | |
2207 | ||
3280af22 | 2208 | if (PL_restartop) { |
533c011a | 2209 | PL_op = PL_restartop; |
3280af22 | 2210 | PL_restartop = 0; |
cea2e8a9 | 2211 | CALLRUNOPS(aTHX); |
6224f72b | 2212 | } |
3280af22 NIS |
2213 | else if (PL_main_start) { |
2214 | CvDEPTH(PL_main_cv) = 1; | |
533c011a | 2215 | PL_op = PL_main_start; |
cea2e8a9 | 2216 | CALLRUNOPS(aTHX); |
6224f72b | 2217 | } |
f6b3007c JH |
2218 | my_exit(0); |
2219 | /* NOTREACHED */ | |
6224f72b GS |
2220 | } |
2221 | ||
954c1994 | 2222 | /* |
ccfc67b7 JH |
2223 | =head1 SV Manipulation Functions |
2224 | ||
954c1994 GS |
2225 | =for apidoc p||get_sv |
2226 | ||
2227 | Returns the SV of the specified Perl scalar. If C<create> is set and the | |
2228 | Perl variable does not exist then it will be created. If C<create> is not | |
2229 | set and the variable does not exist then NULL is returned. | |
2230 | ||
2231 | =cut | |
2232 | */ | |
2233 | ||
6224f72b | 2234 | SV* |
864dbfa3 | 2235 | Perl_get_sv(pTHX_ const char *name, I32 create) |
6224f72b GS |
2236 | { |
2237 | GV *gv; | |
4d1ff10f | 2238 | #ifdef USE_5005THREADS |
6224f72b GS |
2239 | if (name[1] == '\0' && !isALPHA(name[0])) { |
2240 | PADOFFSET tmp = find_threadsv(name); | |
411caa50 | 2241 | if (tmp != NOT_IN_PAD) |
6224f72b | 2242 | return THREADSV(tmp); |
6224f72b | 2243 | } |
4d1ff10f | 2244 | #endif /* USE_5005THREADS */ |
6224f72b GS |
2245 | gv = gv_fetchpv(name, create, SVt_PV); |
2246 | if (gv) | |
2247 | return GvSV(gv); | |
2248 | return Nullsv; | |
2249 | } | |
2250 | ||
954c1994 | 2251 | /* |
ccfc67b7 JH |
2252 | =head1 Array Manipulation Functions |
2253 | ||
954c1994 GS |
2254 | =for apidoc p||get_av |
2255 | ||
2256 | Returns the AV of the specified Perl array. If C<create> is set and the | |
2257 | Perl variable does not exist then it will be created. If C<create> is not | |
2258 | set and the variable does not exist then NULL is returned. | |
2259 | ||
2260 | =cut | |
2261 | */ | |
2262 | ||
6224f72b | 2263 | AV* |
864dbfa3 | 2264 | Perl_get_av(pTHX_ const char *name, I32 create) |
6224f72b GS |
2265 | { |
2266 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); | |
2267 | if (create) | |
2268 | return GvAVn(gv); | |
2269 | if (gv) | |
2270 | return GvAV(gv); | |
2271 | return Nullav; | |
2272 | } | |
2273 | ||
954c1994 | 2274 | /* |
ccfc67b7 JH |
2275 | =head1 Hash Manipulation Functions |
2276 | ||
954c1994 GS |
2277 | =for apidoc p||get_hv |
2278 | ||
2279 | Returns the HV of the specified Perl hash. If C<create> is set and the | |
2280 | Perl variable does not exist then it will be created. If C<create> is not | |
2281 | set and the variable does not exist then NULL is returned. | |
2282 | ||
2283 | =cut | |
2284 | */ | |
2285 | ||
6224f72b | 2286 | HV* |
864dbfa3 | 2287 | Perl_get_hv(pTHX_ const char *name, I32 create) |
6224f72b | 2288 | { |
a0d0e21e LW |
2289 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); |
2290 | if (create) | |
2291 | return GvHVn(gv); | |
2292 | if (gv) | |
2293 | return GvHV(gv); | |
2294 | return Nullhv; | |
2295 | } | |
2296 | ||
954c1994 | 2297 | /* |
ccfc67b7 JH |
2298 | =head1 CV Manipulation Functions |
2299 | ||
954c1994 GS |
2300 | =for apidoc p||get_cv |
2301 | ||
2302 | Returns the CV of the specified Perl subroutine. If C<create> is set and | |
2303 | the Perl subroutine does not exist then it will be declared (which has the | |
2304 | same effect as saying C<sub name;>). If C<create> is not set and the | |
2305 | subroutine does not exist then NULL is returned. | |
2306 | ||
2307 | =cut | |
2308 | */ | |
2309 | ||
a0d0e21e | 2310 | CV* |
864dbfa3 | 2311 | Perl_get_cv(pTHX_ const char *name, I32 create) |
a0d0e21e LW |
2312 | { |
2313 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); | |
b099ddc0 | 2314 | /* XXX unsafe for threads if eval_owner isn't held */ |
f6ec51f7 GS |
2315 | /* XXX this is probably not what they think they're getting. |
2316 | * It has the same effect as "sub name;", i.e. just a forward | |
2317 | * declaration! */ | |
8ebc5c01 | 2318 | if (create && !GvCVu(gv)) |
774d564b | 2319 | return newSUB(start_subparse(FALSE, 0), |
a0d0e21e | 2320 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
4633a7c4 | 2321 | Nullop, |
a0d0e21e LW |
2322 | Nullop); |
2323 | if (gv) | |
8ebc5c01 | 2324 | return GvCVu(gv); |
a0d0e21e LW |
2325 | return Nullcv; |
2326 | } | |
2327 | ||
79072805 LW |
2328 | /* Be sure to refetch the stack pointer after calling these routines. */ |
2329 | ||
954c1994 | 2330 | /* |
ccfc67b7 JH |
2331 | |
2332 | =head1 Callback Functions | |
2333 | ||
954c1994 GS |
2334 | =for apidoc p||call_argv |
2335 | ||
2336 | Performs a callback to the specified Perl sub. See L<perlcall>. | |
2337 | ||
2338 | =cut | |
2339 | */ | |
2340 | ||
a0d0e21e | 2341 | I32 |
8f42b153 | 2342 | Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv) |
ac27b0f5 | 2343 | |
8ac85365 NIS |
2344 | /* See G_* flags in cop.h */ |
2345 | /* null terminated arg list */ | |
8990e307 | 2346 | { |
a0d0e21e | 2347 | dSP; |
8990e307 | 2348 | |
924508f0 | 2349 | PUSHMARK(SP); |
a0d0e21e | 2350 | if (argv) { |
8990e307 | 2351 | while (*argv) { |
a0d0e21e | 2352 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 LW |
2353 | argv++; |
2354 | } | |
a0d0e21e | 2355 | PUTBACK; |
8990e307 | 2356 | } |
864dbfa3 | 2357 | return call_pv(sub_name, flags); |
8990e307 LW |
2358 | } |
2359 | ||
954c1994 GS |
2360 | /* |
2361 | =for apidoc p||call_pv | |
2362 | ||
2363 | Performs a callback to the specified Perl sub. See L<perlcall>. | |
2364 | ||
2365 | =cut | |
2366 | */ | |
2367 | ||
a0d0e21e | 2368 | I32 |
864dbfa3 | 2369 | Perl_call_pv(pTHX_ const char *sub_name, I32 flags) |
8ac85365 NIS |
2370 | /* name of the subroutine */ |
2371 | /* See G_* flags in cop.h */ | |
a0d0e21e | 2372 | { |
864dbfa3 | 2373 | return call_sv((SV*)get_cv(sub_name, TRUE), flags); |
a0d0e21e LW |
2374 | } |
2375 | ||
954c1994 GS |
2376 | /* |
2377 | =for apidoc p||call_method | |
2378 | ||
2379 | Performs a callback to the specified Perl method. The blessed object must | |
2380 | be on the stack. See L<perlcall>. | |
2381 | ||
2382 | =cut | |
2383 | */ | |
2384 | ||
a0d0e21e | 2385 | I32 |
864dbfa3 | 2386 | Perl_call_method(pTHX_ const char *methname, I32 flags) |
8ac85365 NIS |
2387 | /* name of the subroutine */ |
2388 | /* See G_* flags in cop.h */ | |
a0d0e21e | 2389 | { |
968b3946 | 2390 | return call_sv(sv_2mortal(newSVpv(methname,0)), flags | G_METHOD); |
a0d0e21e LW |
2391 | } |
2392 | ||
2393 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
954c1994 GS |
2394 | /* |
2395 | =for apidoc p||call_sv | |
2396 | ||
2397 | Performs a callback to the Perl sub whose name is in the SV. See | |
2398 | L<perlcall>. | |
2399 | ||
2400 | =cut | |
2401 | */ | |
2402 | ||
a0d0e21e | 2403 | I32 |
864dbfa3 | 2404 | Perl_call_sv(pTHX_ SV *sv, I32 flags) |
8ac85365 | 2405 | /* See G_* flags in cop.h */ |
a0d0e21e | 2406 | { |
27da23d5 | 2407 | dVAR; dSP; |
a0d0e21e | 2408 | LOGOP myop; /* fake syntax tree node */ |
968b3946 | 2409 | UNOP method_op; |
aa689395 | 2410 | I32 oldmark; |
13689cfe | 2411 | volatile I32 retval = 0; |
a0d0e21e | 2412 | I32 oldscope; |
54310121 | 2413 | bool oldcatch = CATCH_GET; |
6224f72b | 2414 | int ret; |
533c011a | 2415 | OP* oldop = PL_op; |
db36c5a1 | 2416 | dJMPENV; |
1e422769 | 2417 | |
a0d0e21e LW |
2418 | if (flags & G_DISCARD) { |
2419 | ENTER; | |
2420 | SAVETMPS; | |
2421 | } | |
2422 | ||
aa689395 | 2423 | Zero(&myop, 1, LOGOP); |
54310121 | 2424 | myop.op_next = Nullop; |
f51d4af5 | 2425 | if (!(flags & G_NOARGS)) |
aa689395 | 2426 | myop.op_flags |= OPf_STACKED; |
54310121 | 2427 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
2428 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
2429 | OPf_WANT_SCALAR); | |
462e5cf6 | 2430 | SAVEOP(); |
533c011a | 2431 | PL_op = (OP*)&myop; |
aa689395 | 2432 | |
3280af22 NIS |
2433 | EXTEND(PL_stack_sp, 1); |
2434 | *++PL_stack_sp = sv; | |
aa689395 | 2435 | oldmark = TOPMARK; |
3280af22 | 2436 | oldscope = PL_scopestack_ix; |
a0d0e21e | 2437 | |
3280af22 | 2438 | if (PERLDB_SUB && PL_curstash != PL_debstash |
36477c24 | 2439 | /* Handle first BEGIN of -d. */ |
3280af22 | 2440 | && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub))) |
36477c24 | 2441 | /* Try harder, since this may have been a sighandler, thus |
2442 | * curstash may be meaningless. */ | |
3280af22 | 2443 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash) |
491527d0 | 2444 | && !(flags & G_NODEBUG)) |
533c011a | 2445 | PL_op->op_private |= OPpENTERSUB_DB; |
a0d0e21e | 2446 | |
968b3946 GS |
2447 | if (flags & G_METHOD) { |
2448 | Zero(&method_op, 1, UNOP); | |
2449 | method_op.op_next = PL_op; | |
2450 | method_op.op_ppaddr = PL_ppaddr[OP_METHOD]; | |
2451 | myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB]; | |
f39d0b86 | 2452 | PL_op = (OP*)&method_op; |
968b3946 GS |
2453 | } |
2454 | ||
312caa8e | 2455 | if (!(flags & G_EVAL)) { |
0cdb2077 | 2456 | CATCH_SET(TRUE); |
14dd3ad8 | 2457 | call_body((OP*)&myop, FALSE); |
312caa8e | 2458 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
0253cb41 | 2459 | CATCH_SET(oldcatch); |
312caa8e CS |
2460 | } |
2461 | else { | |
d78bda3d | 2462 | myop.op_other = (OP*)&myop; |
3280af22 | 2463 | PL_markstack_ptr--; |
4633a7c4 LW |
2464 | /* we're trying to emulate pp_entertry() here */ |
2465 | { | |
c09156bb | 2466 | register PERL_CONTEXT *cx; |
f54cb97a | 2467 | const I32 gimme = GIMME_V; |
ac27b0f5 | 2468 | |
4633a7c4 LW |
2469 | ENTER; |
2470 | SAVETMPS; | |
ac27b0f5 | 2471 | |
1d76a5c3 | 2472 | PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp); |
4633a7c4 | 2473 | PUSHEVAL(cx, 0, 0); |
533c011a | 2474 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ |
ac27b0f5 | 2475 | |
faef0170 | 2476 | PL_in_eval = EVAL_INEVAL; |
4633a7c4 | 2477 | if (flags & G_KEEPERR) |
faef0170 | 2478 | PL_in_eval |= EVAL_KEEPERR; |
4633a7c4 | 2479 | else |
c69006e4 | 2480 | sv_setpvn(ERRSV,"",0); |
4633a7c4 | 2481 | } |
3280af22 | 2482 | PL_markstack_ptr++; |
a0d0e21e | 2483 | |
14dd3ad8 | 2484 | JMPENV_PUSH(ret); |
6224f72b GS |
2485 | switch (ret) { |
2486 | case 0: | |
14dd3ad8 GS |
2487 | redo_body: |
2488 | call_body((OP*)&myop, FALSE); | |
312caa8e CS |
2489 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
2490 | if (!(flags & G_KEEPERR)) | |
c69006e4 | 2491 | sv_setpvn(ERRSV,"",0); |
a0d0e21e | 2492 | break; |
6224f72b | 2493 | case 1: |
f86702cc | 2494 | STATUS_ALL_FAILURE; |
a0d0e21e | 2495 | /* FALL THROUGH */ |
6224f72b | 2496 | case 2: |
a0d0e21e | 2497 | /* my_exit() was called */ |
3280af22 | 2498 | PL_curstash = PL_defstash; |
a0d0e21e | 2499 | FREETMPS; |
14dd3ad8 | 2500 | JMPENV_POP; |
cc3604b1 | 2501 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) |
cea2e8a9 | 2502 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc | 2503 | my_exit_jump(); |
a0d0e21e | 2504 | /* NOTREACHED */ |
6224f72b | 2505 | case 3: |
3280af22 | 2506 | if (PL_restartop) { |
533c011a | 2507 | PL_op = PL_restartop; |
3280af22 | 2508 | PL_restartop = 0; |
312caa8e | 2509 | goto redo_body; |
a0d0e21e | 2510 | } |
3280af22 | 2511 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
2512 | if (flags & G_ARRAY) |
2513 | retval = 0; | |
2514 | else { | |
2515 | retval = 1; | |
3280af22 | 2516 | *++PL_stack_sp = &PL_sv_undef; |
a0d0e21e | 2517 | } |
312caa8e | 2518 | break; |
a0d0e21e | 2519 | } |
a0d0e21e | 2520 | |
3280af22 | 2521 | if (PL_scopestack_ix > oldscope) { |
a0a2876f LW |
2522 | SV **newsp; |
2523 | PMOP *newpm; | |
2524 | I32 gimme; | |
c09156bb | 2525 | register PERL_CONTEXT *cx; |
a0a2876f LW |
2526 | I32 optype; |
2527 | ||
2528 | POPBLOCK(cx,newpm); | |
2529 | POPEVAL(cx); | |
3280af22 | 2530 | PL_curpm = newpm; |
a0a2876f | 2531 | LEAVE; |
a0d0e21e | 2532 | } |
14dd3ad8 | 2533 | JMPENV_POP; |
a0d0e21e | 2534 | } |
1e422769 | 2535 | |
a0d0e21e | 2536 | if (flags & G_DISCARD) { |
3280af22 | 2537 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
2538 | retval = 0; |
2539 | FREETMPS; | |
2540 | LEAVE; | |
2541 | } | |
533c011a | 2542 | PL_op = oldop; |
a0d0e21e LW |
2543 | return retval; |
2544 | } | |
2545 | ||
312caa8e | 2546 | STATIC void |
dd374669 | 2547 | S_call_body(pTHX_ const OP *myop, bool is_eval) |
312caa8e | 2548 | { |
312caa8e CS |
2549 | if (PL_op == myop) { |
2550 | if (is_eval) | |
f807eda9 | 2551 | PL_op = Perl_pp_entereval(aTHX); /* this doesn't do a POPMARK */ |
312caa8e | 2552 | else |
f807eda9 | 2553 | PL_op = Perl_pp_entersub(aTHX); /* this does */ |
312caa8e CS |
2554 | } |
2555 | if (PL_op) | |
cea2e8a9 | 2556 | CALLRUNOPS(aTHX); |
312caa8e CS |
2557 | } |
2558 | ||
6e72f9df | 2559 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 | 2560 | |
954c1994 GS |
2561 | /* |
2562 | =for apidoc p||eval_sv | |
2563 | ||
2564 | Tells Perl to C<eval> the string in the SV. | |
2565 | ||
2566 | =cut | |
2567 | */ | |
2568 | ||
a0d0e21e | 2569 | I32 |
864dbfa3 | 2570 | Perl_eval_sv(pTHX_ SV *sv, I32 flags) |
ac27b0f5 | 2571 | |
8ac85365 | 2572 | /* See G_* flags in cop.h */ |
a0d0e21e | 2573 | { |
924508f0 | 2574 | dSP; |
a0d0e21e | 2575 | UNOP myop; /* fake syntax tree node */ |
8fa7f367 | 2576 | volatile I32 oldmark = SP - PL_stack_base; |
13689cfe | 2577 | volatile I32 retval = 0; |
6224f72b | 2578 | int ret; |
533c011a | 2579 | OP* oldop = PL_op; |
db36c5a1 | 2580 | dJMPENV; |
84902520 | 2581 | |
4633a7c4 LW |
2582 | if (flags & G_DISCARD) { |
2583 | ENTER; | |
2584 | SAVETMPS; | |
2585 | } | |
2586 | ||
462e5cf6 | 2587 | SAVEOP(); |
533c011a NIS |
2588 | PL_op = (OP*)&myop; |
2589 | Zero(PL_op, 1, UNOP); | |
3280af22 NIS |
2590 | EXTEND(PL_stack_sp, 1); |
2591 | *++PL_stack_sp = sv; | |
79072805 | 2592 | |
4633a7c4 LW |
2593 | if (!(flags & G_NOARGS)) |
2594 | myop.op_flags = OPf_STACKED; | |
79072805 | 2595 | myop.op_next = Nullop; |
6e72f9df | 2596 | myop.op_type = OP_ENTEREVAL; |
54310121 | 2597 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
2598 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
2599 | OPf_WANT_SCALAR); | |
6e72f9df | 2600 | if (flags & G_KEEPERR) |
2601 | myop.op_flags |= OPf_SPECIAL; | |
4633a7c4 | 2602 | |
dedbcade DM |
2603 | /* fail now; otherwise we could fail after the JMPENV_PUSH but |
2604 | * before a PUSHEVAL, which corrupts the stack after a croak */ | |
2605 | TAINT_PROPER("eval_sv()"); | |
2606 | ||
14dd3ad8 | 2607 | JMPENV_PUSH(ret); |
6224f72b GS |
2608 | switch (ret) { |
2609 | case 0: | |
14dd3ad8 GS |
2610 | redo_body: |
2611 | call_body((OP*)&myop,TRUE); | |
312caa8e CS |
2612 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
2613 | if (!(flags & G_KEEPERR)) | |
c69006e4 | 2614 | sv_setpvn(ERRSV,"",0); |
4633a7c4 | 2615 | break; |
6224f72b | 2616 | case 1: |
f86702cc | 2617 | STATUS_ALL_FAILURE; |
4633a7c4 | 2618 | /* FALL THROUGH */ |
6224f72b | 2619 | case 2: |
4633a7c4 | 2620 | /* my_exit() was called */ |
3280af22 | 2621 | PL_curstash = PL_defstash; |
4633a7c4 | 2622 | FREETMPS; |
14dd3ad8 | 2623 | JMPENV_POP; |
cc3604b1 | 2624 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) |
cea2e8a9 | 2625 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc | 2626 | my_exit_jump(); |
4633a7c4 | 2627 | /* NOTREACHED */ |
6224f72b | 2628 | case 3: |
3280af22 | 2629 | if (PL_restartop) { |
533c011a | 2630 | PL_op = PL_restartop; |
3280af22 | 2631 | PL_restartop = 0; |
312caa8e | 2632 | goto redo_body; |
4633a7c4 | 2633 | } |
3280af22 | 2634 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
2635 | if (flags & G_ARRAY) |
2636 | retval = 0; | |
2637 | else { | |
2638 | retval = 1; | |
3280af22 | 2639 | *++PL_stack_sp = &PL_sv_undef; |
4633a7c4 | 2640 | } |
312caa8e | 2641 | break; |
4633a7c4 LW |
2642 | } |
2643 | ||
14dd3ad8 | 2644 | JMPENV_POP; |
4633a7c4 | 2645 | if (flags & G_DISCARD) { |
3280af22 | 2646 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
2647 | retval = 0; |
2648 | FREETMPS; | |
2649 | LEAVE; | |
2650 | } | |
533c011a | 2651 | PL_op = oldop; |
4633a7c4 LW |
2652 | return retval; |
2653 | } | |
2654 | ||
954c1994 GS |
2655 | /* |
2656 | =for apidoc p||eval_pv | |
2657 | ||
2658 | Tells Perl to C<eval> the given string and return an SV* result. | |
2659 | ||
2660 | =cut | |
2661 | */ | |
2662 | ||
137443ea | 2663 | SV* |
864dbfa3 | 2664 | Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error) |
137443ea | 2665 | { |
2666 | dSP; | |
2667 | SV* sv = newSVpv(p, 0); | |
2668 | ||
864dbfa3 | 2669 | eval_sv(sv, G_SCALAR); |
137443ea | 2670 | SvREFCNT_dec(sv); |
2671 | ||
2672 | SPAGAIN; | |
2673 | sv = POPs; | |
2674 | PUTBACK; | |
2675 | ||
2d8e6c8d | 2676 | if (croak_on_error && SvTRUE(ERRSV)) { |
0510663f | 2677 | Perl_croak(aTHX_ SvPVx_nolen_const(ERRSV)); |
2d8e6c8d | 2678 | } |
137443ea | 2679 | |
2680 | return sv; | |
2681 | } | |
2682 | ||
4633a7c4 LW |
2683 | /* Require a module. */ |
2684 | ||
954c1994 | 2685 | /* |
ccfc67b7 JH |
2686 | =head1 Embedding Functions |
2687 | ||
954c1994 GS |
2688 | =for apidoc p||require_pv |
2689 | ||
7d3fb230 BS |
2690 | Tells Perl to C<require> the file named by the string argument. It is |
2691 | analogous to the Perl code C<eval "require '$file'">. It's even | |
2307c6d0 | 2692 | implemented that way; consider using load_module instead. |
954c1994 | 2693 | |
7d3fb230 | 2694 | =cut */ |
954c1994 | 2695 | |
4633a7c4 | 2696 | void |
864dbfa3 | 2697 | Perl_require_pv(pTHX_ const char *pv) |
4633a7c4 | 2698 | { |
d3acc0f7 JP |
2699 | SV* sv; |
2700 | dSP; | |
e788e7d3 | 2701 | PUSHSTACKi(PERLSI_REQUIRE); |
d3acc0f7 JP |
2702 | PUTBACK; |
2703 | sv = sv_newmortal(); | |
4633a7c4 LW |
2704 | sv_setpv(sv, "require '"); |
2705 | sv_catpv(sv, pv); | |
2706 | sv_catpv(sv, "'"); | |
864dbfa3 | 2707 | eval_sv(sv, G_DISCARD); |
d3acc0f7 JP |
2708 | SPAGAIN; |
2709 | POPSTACK; | |
79072805 LW |
2710 | } |
2711 | ||
79072805 | 2712 | void |
e1ec3a88 | 2713 | Perl_magicname(pTHX_ const char *sym, const char *name, I32 namlen) |
79072805 LW |
2714 | { |
2715 | register GV *gv; | |
2716 | ||
155aba94 | 2717 | if ((gv = gv_fetchpv(sym,TRUE, SVt_PV))) |
14befaf4 | 2718 | sv_magic(GvSV(gv), (SV*)gv, PERL_MAGIC_sv, name, namlen); |
79072805 LW |
2719 | } |
2720 | ||
76e3520e | 2721 | STATIC void |
e1ec3a88 | 2722 | S_usage(pTHX_ const char *name) /* XXX move this out into a module ? */ |
4633a7c4 | 2723 | { |
ab821d7f | 2724 | /* This message really ought to be max 23 lines. |
75c72d73 | 2725 | * Removed -h because the user already knows that option. Others? */ |
fb73857a | 2726 | |
27da23d5 | 2727 | static const char * const usage_msg[] = { |
aefc56c5 SF |
2728 | "-0[octal] specify record separator (\\0, if no argument)", |
2729 | "-A[mod][=pattern] activate all/given assertions", | |
2730 | "-a autosplit mode with -n or -p (splits $_ into @F)", | |
2731 | "-C[number/list] enables the listed Unicode features", | |
2732 | "-c check syntax only (runs BEGIN and CHECK blocks)", | |
2733 | "-d[:debugger] run program under debugger", | |
2734 | "-D[number/list] set debugging flags (argument is a bit mask or alphabets)", | |
2735 | "-e program one line of program (several -e's allowed, omit programfile)", | |
aefc56c5 | 2736 | "-f don't do $sitelib/sitecustomize.pl at startup", |
aefc56c5 SF |
2737 | "-F/pattern/ split() pattern for -a switch (//'s are optional)", |
2738 | "-i[extension] edit <> files in place (makes backup if extension supplied)", | |
2739 | "-Idirectory specify @INC/#include directory (several -I's allowed)", | |
2740 | "-l[octal] enable line ending processing, specifies line terminator", | |
2741 | "-[mM][-]module execute \"use/no module...\" before executing program", | |
2742 | "-n assume \"while (<>) { ... }\" loop around program", | |
2743 | "-p assume loop like -n but print line also, like sed", | |
2744 | "-P run program through C preprocessor before compilation", | |
2745 | "-s enable rudimentary parsing for switches after programfile", | |
2746 | "-S look for programfile using PATH environment variable", | |
2747 | "-t enable tainting warnings", | |
2748 | "-T enable tainting checks", | |
2749 | "-u dump core after parsing program", | |
2750 | "-U allow unsafe operations", | |
2751 | "-v print version, subversion (includes VERY IMPORTANT perl info)", | |
2752 | "-V[:variable] print configuration summary (or a single Config.pm variable)", | |
2753 | "-w enable many useful warnings (RECOMMENDED)", | |
2754 | "-W enable all warnings", | |
2755 | "-x[directory] strip off text before #!perl line and perhaps cd to directory", | |
2756 | "-X disable all warnings", | |
fb73857a | 2757 | "\n", |
2758 | NULL | |
2759 | }; | |
27da23d5 | 2760 | const char * const *p = usage_msg; |
fb73857a | 2761 | |
b0e47665 GS |
2762 | PerlIO_printf(PerlIO_stdout(), |
2763 | "\nUsage: %s [switches] [--] [programfile] [arguments]", | |
2764 | name); | |
fb73857a | 2765 | while (*p) |
b0e47665 | 2766 | PerlIO_printf(PerlIO_stdout(), "\n %s", *p++); |
4633a7c4 LW |
2767 | } |
2768 | ||
b4ab917c DM |
2769 | /* convert a string of -D options (or digits) into an int. |
2770 | * sets *s to point to the char after the options */ | |
2771 | ||
2772 | #ifdef DEBUGGING | |
2773 | int | |
e1ec3a88 | 2774 | Perl_get_debug_opts(pTHX_ const char **s, bool givehelp) |
b4ab917c | 2775 | { |
27da23d5 | 2776 | static const char * const usage_msgd[] = { |
e6e64d9b JC |
2777 | " Debugging flag values: (see also -d)", |
2778 | " p Tokenizing and parsing (with v, displays parse stack)", | |
3679267a | 2779 | " s Stack snapshots (with v, displays all stacks)", |
e6e64d9b JC |
2780 | " l Context (loop) stack processing", |
2781 | " t Trace execution", | |
2782 | " o Method and overloading resolution", | |
2783 | " c String/numeric conversions", | |
2784 | " P Print profiling info, preprocessor command for -P, source file input state", | |
2785 | " m Memory allocation", | |
2786 | " f Format processing", | |
2787 | " r Regular expression parsing and execution", | |
2788 | " x Syntax tree dump", | |
3679267a | 2789 | " u Tainting checks", |
e6e64d9b JC |
2790 | " H Hash dump -- usurps values()", |
2791 | " X Scratchpad allocation", | |
2792 | " D Cleaning up", | |
2793 | " S Thread synchronization", | |
2794 | " T Tokenising", | |
2795 | " R Include reference counts of dumped variables (eg when using -Ds)", | |
2796 | " J Do not s,t,P-debug (Jump over) opcodes within package DB", | |
2797 | " v Verbose: use in conjunction with other flags", | |
2798 | " C Copy On Write", | |
2799 | " A Consistency checks on internal structures", | |
3679267a | 2800 | " q quiet - currently only suppresses the 'EXECUTING' message", |
e6e64d9b JC |
2801 | NULL |
2802 | }; | |
b4ab917c DM |
2803 | int i = 0; |
2804 | if (isALPHA(**s)) { | |
2805 | /* if adding extra options, remember to update DEBUG_MASK */ | |
bfed75c6 | 2806 | static const char debopts[] = "psltocPmfrxu HXDSTRJvCAq"; |
b4ab917c DM |
2807 | |
2808 | for (; isALNUM(**s); (*s)++) { | |
e1ec3a88 | 2809 | const char *d = strchr(debopts,**s); |
b4ab917c DM |
2810 | if (d) |
2811 | i |= 1 << (d - debopts); | |
2812 | else if (ckWARN_d(WARN_DEBUGGING)) | |
e6e64d9b JC |
2813 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
2814 | "invalid option -D%c, use -D'' to see choices\n", **s); | |
b4ab917c DM |
2815 | } |
2816 | } | |
e6e64d9b | 2817 | else if (isDIGIT(**s)) { |
b4ab917c DM |
2818 | i = atoi(*s); |
2819 | for (; isALNUM(**s); (*s)++) ; | |
2820 | } | |
ddcf8bc1 | 2821 | else if (givehelp) { |
aadb217d | 2822 | char **p = (char **)usage_msgd; |
e6e64d9b JC |
2823 | while (*p) PerlIO_printf(PerlIO_stdout(), "%s\n", *p++); |
2824 | } | |
b4ab917c DM |
2825 | # ifdef EBCDIC |
2826 | if ((i & DEBUG_p_FLAG) && ckWARN_d(WARN_DEBUGGING)) | |
2827 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), | |
2828 | "-Dp not implemented on this platform\n"); | |
2829 | # endif | |
2830 | return i; | |
2831 | } | |
2832 | #endif | |
2833 | ||
79072805 LW |
2834 | /* This routine handles any switches that can be given during run */ |
2835 | ||
2836 | char * | |
864dbfa3 | 2837 | Perl_moreswitches(pTHX_ char *s) |
79072805 | 2838 | { |
27da23d5 | 2839 | dVAR; |
84c133a0 | 2840 | UV rschar; |
79072805 LW |
2841 | |
2842 | switch (*s) { | |
2843 | case '0': | |
a863c7d1 | 2844 | { |
f2095865 | 2845 | I32 flags = 0; |
a3b680e6 | 2846 | STRLEN numlen; |
f2095865 JH |
2847 | |
2848 | SvREFCNT_dec(PL_rs); | |
2849 | if (s[1] == 'x' && s[2]) { | |
a3b680e6 | 2850 | const char *e = s+=2; |
f2095865 JH |
2851 | U8 *tmps; |
2852 | ||
a3b680e6 AL |
2853 | while (*e) |
2854 | e++; | |
f2095865 JH |
2855 | numlen = e - s; |
2856 | flags = PERL_SCAN_SILENT_ILLDIGIT; | |
2857 | rschar = (U32)grok_hex(s, &numlen, &flags, NULL); | |
2858 | if (s + numlen < e) { | |
2859 | rschar = 0; /* Grandfather -0xFOO as -0 -xFOO. */ | |
2860 | numlen = 0; | |
2861 | s--; | |
2862 | } | |
2863 | PL_rs = newSVpvn("", 0); | |
c5661c80 | 2864 | SvGROW(PL_rs, (STRLEN)(UNISKIP(rschar) + 1)); |
f2095865 JH |
2865 | tmps = (U8*)SvPVX(PL_rs); |
2866 | uvchr_to_utf8(tmps, rschar); | |
2867 | SvCUR_set(PL_rs, UNISKIP(rschar)); | |
2868 | SvUTF8_on(PL_rs); | |
2869 | } | |
2870 | else { | |
2871 | numlen = 4; | |
2872 | rschar = (U32)grok_oct(s, &numlen, &flags, NULL); | |
2873 | if (rschar & ~((U8)~0)) | |
2874 | PL_rs = &PL_sv_undef; | |
2875 | else if (!rschar && numlen >= 2) | |
2876 | PL_rs = newSVpvn("", 0); | |
2877 | else { | |
2878 | char ch = (char)rschar; | |
2879 | PL_rs = newSVpvn(&ch, 1); | |
2880 | } | |
2881 | } | |
800633c3 | 2882 | sv_setsv(get_sv("/", TRUE), PL_rs); |
f2095865 | 2883 | return s + numlen; |
a863c7d1 | 2884 | } |
46487f74 | 2885 | case 'C': |
a05d7ebb | 2886 | s++; |
dd374669 | 2887 | PL_unicode = parse_unicode_opts( (const char **)&s ); |
46487f74 | 2888 | return s; |
2304df62 | 2889 | case 'F': |
3280af22 | 2890 | PL_minus_F = TRUE; |
ebce5377 RGS |
2891 | PL_splitstr = ++s; |
2892 | while (*s && !isSPACE(*s)) ++s; | |
2893 | *s = '\0'; | |
2894 | PL_splitstr = savepv(PL_splitstr); | |
2304df62 | 2895 | return s; |
79072805 | 2896 | case 'a': |
3280af22 | 2897 | PL_minus_a = TRUE; |
79072805 LW |
2898 | s++; |
2899 | return s; | |
2900 | case 'c': | |
3280af22 | 2901 | PL_minus_c = TRUE; |
79072805 LW |
2902 | s++; |
2903 | return s; | |
2904 | case 'd': | |
bbce6d69 | 2905 | forbid_setid("-d"); |
4633a7c4 | 2906 | s++; |
2cbb2ee1 RGS |
2907 | |
2908 | /* -dt indicates to the debugger that threads will be used */ | |
2909 | if (*s == 't' && !isALNUM(s[1])) { | |
2910 | ++s; | |
2911 | my_setenv("PERL5DB_THREADED", "1"); | |
2912 | } | |
2913 | ||
70c94a19 RR |
2914 | /* The following permits -d:Mod to accepts arguments following an = |
2915 | in the fashion that -MSome::Mod does. */ | |
2916 | if (*s == ':' || *s == '=') { | |
06b5626a | 2917 | const char *start; |
70c94a19 RR |
2918 | SV *sv; |
2919 | sv = newSVpv("use Devel::", 0); | |
2920 | start = ++s; | |
2921 | /* We now allow -d:Module=Foo,Bar */ | |
2922 | while(isALNUM(*s) || *s==':') ++s; | |
2923 | if (*s != '=') | |
2924 | sv_catpv(sv, start); | |
2925 | else { | |
2926 | sv_catpvn(sv, start, s-start); | |
2927 | sv_catpv(sv, " split(/,/,q{"); | |
2928 | sv_catpv(sv, ++s); | |
3d27e215 | 2929 | sv_catpv(sv, "})"); |
70c94a19 | 2930 | } |
4633a7c4 | 2931 | s += strlen(s); |
70c94a19 | 2932 | my_setenv("PERL5DB", SvPV(sv, PL_na)); |
4633a7c4 | 2933 | } |
ed094faf | 2934 | if (!PL_perldb) { |
3280af22 | 2935 | PL_perldb = PERLDB_ALL; |
a0d0e21e | 2936 | init_debugger(); |
ed094faf | 2937 | } |
79072805 LW |
2938 | return s; |
2939 | case 'D': | |
0453d815 | 2940 | { |
79072805 | 2941 | #ifdef DEBUGGING |
bbce6d69 | 2942 | forbid_setid("-D"); |
b4ab917c | 2943 | s++; |
dd374669 | 2944 | PL_debug = get_debug_opts( (const char **)&s, 1) | DEBUG_TOP_FLAG; |
12a43e32 | 2945 | #else /* !DEBUGGING */ |
0453d815 | 2946 | if (ckWARN_d(WARN_DEBUGGING)) |
9014280d | 2947 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
e6e64d9b | 2948 | "Recompile perl with -DDEBUGGING to use -D switch (did you mean -d ?)\n"); |
a0d0e21e | 2949 | for (s++; isALNUM(*s); s++) ; |
79072805 | 2950 | #endif |
79072805 | 2951 | return s; |
0453d815 | 2952 | } |
4633a7c4 | 2953 | case 'h': |
ac27b0f5 | 2954 | usage(PL_origargv[0]); |
7ca617d0 | 2955 | my_exit(0); |
79072805 | 2956 | case 'i': |
3280af22 NIS |
2957 | if (PL_inplace) |
2958 | Safefree(PL_inplace); | |
c030f24b GH |
2959 | #if defined(__CYGWIN__) /* do backup extension automagically */ |
2960 | if (*(s+1) == '\0') { | |
2961 | PL_inplace = savepv(".bak"); | |
2962 | return s+1; | |
2963 | } | |
2964 | #endif /* __CYGWIN__ */ | |
3280af22 | 2965 | PL_inplace = savepv(s+1); |
a6e20a40 AL |
2966 | for (s = PL_inplace; *s && !isSPACE(*s); s++) |
2967 | ; | |
7b8d334a | 2968 | if (*s) { |
fb73857a | 2969 | *s++ = '\0'; |
7b8d334a GS |
2970 | if (*s == '-') /* Additional switches on #! line. */ |
2971 | s++; | |
2972 | } | |
fb73857a | 2973 | return s; |
4e49a025 | 2974 | case 'I': /* -I handled both here and in parse_body() */ |
bbce6d69 | 2975 | forbid_setid("-I"); |
fb73857a | 2976 | ++s; |
2977 | while (*s && isSPACE(*s)) | |
2978 | ++s; | |
2979 | if (*s) { | |
774d564b | 2980 | char *e, *p; |
0df16ed7 GS |
2981 | p = s; |
2982 | /* ignore trailing spaces (possibly followed by other switches) */ | |
2983 | do { | |
2984 | for (e = p; *e && !isSPACE(*e); e++) ; | |
2985 | p = e; | |
2986 | while (isSPACE(*p)) | |
2987 | p++; | |
2988 | } while (*p && *p != '-'); | |
2989 | e = savepvn(s, e-s); | |
88fe16b2 | 2990 | incpush(e, TRUE, TRUE, FALSE, FALSE); |
0df16ed7 GS |
2991 | Safefree(e); |
2992 | s = p; | |
2993 | if (*s == '-') | |
2994 | s++; | |
79072805 LW |
2995 | } |
2996 | else | |
a67e862a | 2997 | Perl_croak(aTHX_ "No directory specified for -I"); |
fb73857a | 2998 | return s; |
79072805 | 2999 | case 'l': |
3280af22 | 3000 | PL_minus_l = TRUE; |
79072805 | 3001 | s++; |
7889fe52 NIS |
3002 | if (PL_ors_sv) { |
3003 | SvREFCNT_dec(PL_ors_sv); | |
3004 | PL_ors_sv = Nullsv; | |
3005 | } | |
79072805 | 3006 | if (isDIGIT(*s)) { |
53305cf1 | 3007 | I32 flags = 0; |
a3b680e6 | 3008 | STRLEN numlen; |
7889fe52 | 3009 | PL_ors_sv = newSVpvn("\n",1); |
53305cf1 NC |
3010 | numlen = 3 + (*s == '0'); |
3011 | *SvPVX(PL_ors_sv) = (char)grok_oct(s, &numlen, &flags, NULL); | |
79072805 LW |
3012 | s += numlen; |
3013 | } | |
3014 | else { | |
8bfdd7d9 | 3015 | if (RsPARA(PL_rs)) { |
7889fe52 NIS |
3016 | PL_ors_sv = newSVpvn("\n\n",2); |
3017 | } | |
3018 | else { | |
8bfdd7d9 | 3019 | PL_ors_sv = newSVsv(PL_rs); |
c07a80fd | 3020 | } |
79072805 LW |
3021 | } |
3022 | return s; | |
06492da6 SF |
3023 | case 'A': |
3024 | forbid_setid("-A"); | |
930366bd RGS |
3025 | if (!PL_preambleav) |
3026 | PL_preambleav = newAV(); | |
aefc56c5 SF |
3027 | s++; |
3028 | { | |
3029 | char *start = s; | |
3030 | SV *sv = newSVpv("use assertions::activate", 24); | |
3031 | while(isALNUM(*s) || *s == ':') ++s; | |
3032 | if (s != start) { | |
3033 | sv_catpvn(sv, "::", 2); | |
3034 | sv_catpvn(sv, start, s-start); | |
3035 | } | |
3036 | if (*s == '=') { | |
3037 | sv_catpvn(sv, " split(/,/,q\0", 13); | |
3038 | sv_catpv(sv, s+1); | |
3039 | sv_catpvn(sv, "\0)", 2); | |
3040 | s+=strlen(s); | |
3041 | } | |
3042 | else if (*s != '\0') { | |
3043 | Perl_croak(aTHX_ "Can't use '%c' after -A%.*s", *s, s-start, start); | |
3044 | } | |
06492da6 | 3045 | av_push(PL_preambleav, sv); |
aefc56c5 | 3046 | return s; |
06492da6 | 3047 | } |
1a30305b | 3048 | case 'M': |
bbce6d69 | 3049 | forbid_setid("-M"); /* XXX ? */ |
1a30305b | 3050 | /* FALL THROUGH */ |
3051 | case 'm': | |
bbce6d69 | 3052 | forbid_setid("-m"); /* XXX ? */ |
1a30305b | 3053 | if (*++s) { |
a5f75d66 | 3054 | char *start; |
11343788 | 3055 | SV *sv; |
e1ec3a88 | 3056 | const char *use = "use "; |
a5f75d66 AD |
3057 | /* -M-foo == 'no foo' */ |
3058 | if (*s == '-') { use = "no "; ++s; } | |
11343788 | 3059 | sv = newSVpv(use,0); |
a5f75d66 | 3060 | start = s; |
1a30305b | 3061 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd | 3062 | while(isALNUM(*s) || *s==':') ++s; |
3063 | if (*s != '=') { | |
11343788 | 3064 | sv_catpv(sv, start); |
c07a80fd | 3065 | if (*(start-1) == 'm') { |
3066 | if (*s != '\0') | |
cea2e8a9 | 3067 | Perl_croak(aTHX_ "Can't use '%c' after -mname", *s); |
11343788 | 3068 | sv_catpv( sv, " ()"); |
c07a80fd | 3069 | } |
3070 | } else { | |
6df41af2 | 3071 | if (s == start) |
be98fb35 GS |
3072 | Perl_croak(aTHX_ "Module name required with -%c option", |
3073 | s[-1]); | |
11343788 | 3074 | sv_catpvn(sv, start, s-start); |
3d27e215 LM |
3075 | sv_catpv(sv, " split(/,/,q"); |
3076 | sv_catpvn(sv, "\0)", 1); /* Use NUL as q//-delimiter. */ | |
11343788 | 3077 | sv_catpv(sv, ++s); |
3d27e215 | 3078 | sv_catpvn(sv, "\0)", 2); |
c07a80fd | 3079 | } |
1a30305b | 3080 | s += strlen(s); |
5c831c24 | 3081 | if (!PL_preambleav) |
3280af22 NIS |
3082 | PL_preambleav = newAV(); |
3083 | av_push(PL_preambleav, sv); | |
1a30305b | 3084 | } |
3085 | else | |
9e81e6a1 | 3086 | Perl_croak(aTHX_ "Missing argument to -%c", *(s-1)); |
1a30305b | 3087 | return s; |
79072805 | 3088 | case 'n': |
3280af22 | 3089 | PL_minus_n = TRUE; |
79072805 LW |
3090 | s++; |
3091 | return s; | |
3092 | case 'p': | |
3280af22 | 3093 | PL_minus_p = TRUE; |
79072805 LW |
3094 | s++; |
3095 | return s; | |
3096 | case 's': | |
bbce6d69 | 3097 | forbid_setid("-s"); |
3280af22 | 3098 | PL_doswitches = TRUE; |
79072805 LW |
3099 | s++; |
3100 | return s; | |
6537fe72 MS |
3101 | case 't': |
3102 | if (!PL_tainting) | |
22f7c9c9 | 3103 | TOO_LATE_FOR('t'); |
6537fe72 MS |
3104 | s++; |
3105 | return s; | |
463ee0b2 | 3106 | case 'T': |
3280af22 | 3107 | if (!PL_tainting) |
22f7c9c9 | 3108 | TOO_LATE_FOR('T'); |
463ee0b2 LW |
3109 | s++; |
3110 | return s; | |
79072805 | 3111 | case 'u': |
bf4acbe4 GS |
3112 | #ifdef MACOS_TRADITIONAL |
3113 | Perl_croak(aTHX_ "Believe me, you don't want to use \"-u\" on a Macintosh"); | |
3114 | #endif | |
3280af22 | 3115 | PL_do_undump = TRUE; |
79072805 LW |
3116 | s++; |
3117 | return s; | |
3118 | case 'U': | |
3280af22 | 3119 | PL_unsafe = TRUE; |
79072805 LW |
3120 | s++; |
3121 | return s; | |
3122 | case 'v': | |
d7aa5382 JP |
3123 | if (!sv_derived_from(PL_patchlevel, "version")) |
3124 | (void *)upg_version(PL_patchlevel); | |
8e9464f1 | 3125 | #if !defined(DGUX) |
b0e47665 | 3126 | PerlIO_printf(PerlIO_stdout(), |
52ea0aec | 3127 | Perl_form(aTHX_ "\nThis is perl, %"SVf" built for %s", |
d7aa5382 JP |
3128 | vstringify(PL_patchlevel), |
3129 | ARCHNAME)); | |
8e9464f1 JH |
3130 | #else /* DGUX */ |
3131 | /* Adjust verbose output as in the perl that ships with the DG/UX OS from EMC */ | |
3132 | PerlIO_printf(PerlIO_stdout(), | |
52ea0aec | 3133 | Perl_form(aTHX_ "\nThis is perl, %"SVf"\n", |
d7aa5382 | 3134 | vstringify(PL_patchlevel))); |
8e9464f1 JH |
3135 | PerlIO_printf(PerlIO_stdout(), |
3136 | Perl_form(aTHX_ " built under %s at %s %s\n", | |
3137 | OSNAME, __DATE__, __TIME__)); | |
3138 | PerlIO_printf(PerlIO_stdout(), | |
3139 | Perl_form(aTHX_ " OS Specific Release: %s\n", | |
40a39f85 | 3140 | OSVERS)); |
8e9464f1 JH |
3141 | #endif /* !DGUX */ |
3142 | ||
fb73857a | 3143 | #if defined(LOCAL_PATCH_COUNT) |
3144 | if (LOCAL_PATCH_COUNT > 0) | |
b0e47665 GS |
3145 | PerlIO_printf(PerlIO_stdout(), |
3146 | "\n(with %d registered patch%s, " | |
3147 | "see perl -V for more detail)", | |
3148 | (int)LOCAL_PATCH_COUNT, | |
3149 | (LOCAL_PATCH_COUNT!=1) ? "es" : ""); | |
a5f75d66 | 3150 | #endif |
1a30305b | 3151 | |
b0e47665 | 3152 | PerlIO_printf(PerlIO_stdout(), |
359b00fe | 3153 | "\n\nCopyright 1987-2005, Larry Wall\n"); |
eae9c151 JH |
3154 | #ifdef MACOS_TRADITIONAL |
3155 | PerlIO_printf(PerlIO_stdout(), | |
be3c0a43 | 3156 | "\nMac OS port Copyright 1991-2002, Matthias Neeracher;\n" |
03765510 | 3157 | "maintained by Chris Nandor\n"); |
eae9c151 | 3158 | #endif |
79072805 | 3159 | #ifdef MSDOS |
b0e47665 GS |
3160 | PerlIO_printf(PerlIO_stdout(), |
3161 | "\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); | |
55497cff | 3162 | #endif |
3163 | #ifdef DJGPP | |
b0e47665 GS |
3164 | PerlIO_printf(PerlIO_stdout(), |
3165 | "djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n" | |
3166 | "djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n"); | |
4633a7c4 | 3167 | #endif |
79072805 | 3168 | #ifdef OS2 |
b0e47665 GS |
3169 | PerlIO_printf(PerlIO_stdout(), |
3170 | "\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" | |
be3c0a43 | 3171 | "Version 5 port Copyright (c) 1994-2002, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 | 3172 | #endif |
79072805 | 3173 | #ifdef atarist |
b0e47665 GS |
3174 | PerlIO_printf(PerlIO_stdout(), |
3175 | "atariST series port, ++jrb bammi@cadence.com\n"); | |
79072805 | 3176 | #endif |
a3f9223b | 3177 | #ifdef __BEOS__ |
b0e47665 GS |
3178 | PerlIO_printf(PerlIO_stdout(), |
3179 | "BeOS port Copyright Tom Spindler, 1997-1999\n"); | |
a3f9223b | 3180 | #endif |
1d84e8df | 3181 | #ifdef MPE |
b0e47665 | 3182 | PerlIO_printf(PerlIO_stdout(), |
e583a879 | 3183 | "MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-2003\n"); |
1d84e8df | 3184 | #endif |
9d116dd7 | 3185 | #ifdef OEMVS |
b0e47665 GS |
3186 | PerlIO_printf(PerlIO_stdout(), |
3187 | "MVS (OS390) port by Mortice Kern Systems, 1997-1999\n"); | |
9d116dd7 | 3188 | #endif |
495c5fdc | 3189 | #ifdef __VOS__ |
b0e47665 | 3190 | PerlIO_printf(PerlIO_stdout(), |
94efb9fb | 3191 | "Stratus VOS port by Paul.Green@stratus.com, 1997-2002\n"); |
495c5fdc | 3192 | #endif |
092bebab | 3193 | #ifdef __OPEN_VM |
b0e47665 GS |
3194 | PerlIO_printf(PerlIO_stdout(), |
3195 | "VM/ESA port by Neale Ferguson, 1998-1999\n"); | |
092bebab | 3196 | #endif |
a1a0e61e | 3197 | #ifdef POSIX_BC |
b0e47665 GS |
3198 | PerlIO_printf(PerlIO_stdout(), |
3199 | "BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n"); | |
a1a0e61e | 3200 | #endif |
61ae2fbf | 3201 | #ifdef __MINT__ |
b0e47665 GS |
3202 | PerlIO_printf(PerlIO_stdout(), |
3203 | "MiNT port by Guido Flohr, 1997-1999\n"); | |
61ae2fbf | 3204 | #endif |
f83d2536 | 3205 | #ifdef EPOC |
b0e47665 | 3206 | PerlIO_printf(PerlIO_stdout(), |
be3c0a43 | 3207 | "EPOC port by Olaf Flebbe, 1999-2002\n"); |
f83d2536 | 3208 | #endif |
e1caacb4 | 3209 | #ifdef UNDER_CE |
b475b3e6 JH |
3210 | PerlIO_printf(PerlIO_stdout(),"WINCE port by Rainer Keuchel, 2001-2002\n"); |
3211 | PerlIO_printf(PerlIO_stdout(),"Built on " __DATE__ " " __TIME__ "\n\n"); | |
e1caacb4 JH |
3212 | wce_hitreturn(); |
3213 | #endif | |
27da23d5 JH |
3214 | #ifdef SYMBIAN |
3215 | PerlIO_printf(PerlIO_stdout(), | |
3216 | "Symbian port by Nokia, 2004-2005\n"); | |
3217 | #endif | |
baed7233 DL |
3218 | #ifdef BINARY_BUILD_NOTICE |
3219 | BINARY_BUILD_NOTICE; | |
3220 | #endif | |
b0e47665 GS |
3221 | PerlIO_printf(PerlIO_stdout(), |
3222 | "\n\ | |
79072805 | 3223 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
3d6f292d | 3224 | GNU General Public License, which may be found in the Perl 5 source kit.\n\n\ |
95103687 | 3225 | Complete documentation for Perl, including FAQ lists, should be found on\n\ |
a0288114 | 3226 | this system using \"man perl\" or \"perldoc perl\". If you have access to the\n\ |
c9e30dd8 | 3227 | Internet, point your browser at http://www.perl.org/, the Perl Home Page.\n\n"); |
7ca617d0 | 3228 | my_exit(0); |
79072805 | 3229 | case 'w': |
599cee73 | 3230 | if (! (PL_dowarn & G_WARN_ALL_MASK)) |
ac27b0f5 | 3231 | PL_dowarn |= G_WARN_ON; |
599cee73 PM |
3232 | s++; |
3233 | return s; | |
3234 | case 'W': | |
ac27b0f5 | 3235 | PL_dowarn = G_WARN_ALL_ON|G_WARN_ON; |
317ea90d MS |
3236 | if (!specialWARN(PL_compiling.cop_warnings)) |
3237 | SvREFCNT_dec(PL_compiling.cop_warnings); | |
d3a7d8c7 | 3238 | PL_compiling.cop_warnings = pWARN_ALL ; |
599cee73 PM |
3239 | s++; |
3240 | return s; | |
3241 | case 'X': | |
ac27b0f5 | 3242 | PL_dowarn = G_WARN_ALL_OFF; |
317ea90d MS |
3243 | if (!specialWARN(PL_compiling.cop_warnings)) |
3244 | SvREFCNT_dec(PL_compiling.cop_warnings); | |
d3a7d8c7 | 3245 | PL_compiling.cop_warnings = pWARN_NONE ; |
79072805 LW |
3246 | s++; |
3247 | return s; | |
a0d0e21e | 3248 | case '*': |
79072805 LW |
3249 | case ' ': |
3250 | if (s[1] == '-') /* Additional switches on #! line. */ | |
3251 | return s+2; | |
3252 | break; | |
a0d0e21e | 3253 | case '-': |
79072805 | 3254 | case 0: |
51882d45 | 3255 | #if defined(WIN32) || !defined(PERL_STRICT_CR) |
a868473f NIS |
3256 | case '\r': |
3257 | #endif | |
79072805 LW |
3258 | case '\n': |
3259 | case '\t': | |
3260 | break; | |
aa689395 | 3261 | #ifdef ALTERNATE_SHEBANG |
3262 | case 'S': /* OS/2 needs -S on "extproc" line. */ | |
3263 | break; | |
3264 | #endif | |
a0d0e21e | 3265 | case 'P': |
3280af22 | 3266 | if (PL_preprocess) |
a0d0e21e LW |
3267 | return s+1; |
3268 | /* FALL THROUGH */ | |
79072805 | 3269 | default: |
cea2e8a9 | 3270 | Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s); |
79072805 LW |
3271 | } |
3272 | return Nullch; | |
3273 | } | |
3274 | ||
3275 | /* compliments of Tom Christiansen */ | |
3276 | ||
3277 | /* unexec() can be found in the Gnu emacs distribution */ | |
ee580363 | 3278 | /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */ |
79072805 LW |
3279 | |
3280 | void | |
864dbfa3 | 3281 | Perl_my_unexec(pTHX) |
79072805 LW |
3282 | { |
3283 | #ifdef UNEXEC | |
46fc3d4c | 3284 | SV* prog; |
3285 | SV* file; | |
ee580363 | 3286 | int status = 1; |
79072805 LW |
3287 | extern int etext; |
3288 | ||
ee580363 | 3289 | prog = newSVpv(BIN_EXP, 0); |
46fc3d4c | 3290 | sv_catpv(prog, "/perl"); |
6b88bc9c | 3291 | file = newSVpv(PL_origfilename, 0); |
46fc3d4c | 3292 | sv_catpv(file, ".perldump"); |
79072805 | 3293 | |
ee580363 GS |
3294 | unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0); |
3295 | /* unexec prints msg to stderr in case of failure */ | |
6ad3d225 | 3296 | PerlProc_exit(status); |
79072805 | 3297 | #else |
a5f75d66 AD |
3298 | # ifdef VMS |
3299 | # include <lib$routines.h> | |
3300 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ | |
aa689395 | 3301 | # else |
79072805 | 3302 | ABORT(); /* for use with undump */ |
aa689395 | 3303 | # endif |
a5f75d66 | 3304 | #endif |
79072805 LW |
3305 | } |
3306 | ||
cb68f92d GS |
3307 | /* initialize curinterp */ |
3308 | STATIC void | |
cea2e8a9 | 3309 | S_init_interp(pTHX) |
cb68f92d GS |
3310 | { |
3311 | ||
acfe0abc GS |
3312 | #ifdef MULTIPLICITY |
3313 | # define PERLVAR(var,type) | |
3314 | # define PERLVARA(var,n,type) | |
3315 | # if defined(PERL_IMPLICIT_CONTEXT) | |
3316 | # if defined(USE_5005THREADS) | |
3317 | # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init; | |
27da23d5 | 3318 | # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init; |
acfe0abc GS |
3319 | # else /* !USE_5005THREADS */ |
3320 | # define PERLVARI(var,type,init) aTHX->var = init; | |
3321 | # define PERLVARIC(var,type,init) aTHX->var = init; | |
3322 | # endif /* USE_5005THREADS */ | |
3967c732 | 3323 | # else |
acfe0abc GS |
3324 | # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init; |
3325 | # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init; | |
066ef5b5 | 3326 | # endif |
acfe0abc GS |
3327 | # include "intrpvar.h" |
3328 | # ifndef USE_5005THREADS | |
3329 | # include "thrdvar.h" | |
3330 | # endif | |
3331 | # undef PERLVAR | |
3332 | # undef PERLVARA | |
3333 | # undef PERLVARI | |
3334 | # undef PERLVARIC | |
3335 | #else | |
3336 | # define PERLVAR(var,type) | |
3337 | # define PERLVARA(var,n,type) | |
3338 | # define PERLVARI(var,type,init) PL_##var = init; | |
3339 | # define PERLVARIC(var,type,init) PL_##var = init; | |
3340 | # include "intrpvar.h" | |
3341 | # ifndef USE_5005THREADS | |
3342 | # include "thrdvar.h" | |
3343 | # endif | |
3344 | # undef PERLVAR | |
3345 | # undef PERLVARA | |
3346 | # undef PERLVARI | |
3347 | # undef PERLVARIC | |
cb68f92d GS |
3348 | #endif |
3349 | ||
cb68f92d GS |
3350 | } |
3351 | ||
76e3520e | 3352 | STATIC void |
cea2e8a9 | 3353 | S_init_main_stash(pTHX) |
79072805 | 3354 | { |
463ee0b2 | 3355 | GV *gv; |
6e72f9df | 3356 | |
3280af22 | 3357 | PL_curstash = PL_defstash = newHV(); |
79cb57f6 | 3358 | PL_curstname = newSVpvn("main",4); |
adbc6bb1 LW |
3359 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
3360 | SvREFCNT_dec(GvHV(gv)); | |
3280af22 | 3361 | GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash); |
463ee0b2 | 3362 | SvREADONLY_on(gv); |
bfcb3514 | 3363 | Perl_hv_name_set(aTHX_ PL_defstash, "main", 4, 0); |
3280af22 NIS |
3364 | PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); |
3365 | GvMULTI_on(PL_incgv); | |
3366 | PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */ | |
3367 | GvMULTI_on(PL_hintgv); | |
3368 | PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV); | |
3369 | PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); | |
3370 | GvMULTI_on(PL_errgv); | |
3371 | PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */ | |
3372 | GvMULTI_on(PL_replgv); | |
cea2e8a9 | 3373 | (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */ |
38a03e6e MB |
3374 | sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */ |
3375 | sv_setpvn(ERRSV, "", 0); | |
3280af22 | 3376 | PL_curstash = PL_defstash; |
11faa288 | 3377 | CopSTASH_set(&PL_compiling, PL_defstash); |
ed094faf | 3378 | PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); |
3280af22 | 3379 | PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV)); |
4633a7c4 | 3380 | /* We must init $/ before switches are processed. */ |
864dbfa3 | 3381 | sv_setpvn(get_sv("/", TRUE), "\n", 1); |
79072805 LW |
3382 | } |
3383 | ||
ae3f3efd | 3384 | /* PSz 18 Nov 03 fdscript now global but do not change prototype */ |
76e3520e | 3385 | STATIC void |
dd374669 | 3386 | S_open_script(pTHX_ const char *scriptname, bool dosearch, SV *sv) |
79072805 | 3387 | { |
ae3f3efd | 3388 | #ifndef IAMSUID |
e1ec3a88 AL |
3389 | const char *quote; |
3390 | const char *code; | |
3391 | const char *cpp_discard_flag; | |
3392 | const char *perl; | |
ae3f3efd | 3393 | #endif |
27da23d5 | 3394 | dVAR; |
1b24ed4b | 3395 | |
ae3f3efd PS |
3396 | PL_fdscript = -1; |
3397 | PL_suidscript = -1; | |
79072805 | 3398 | |
3280af22 | 3399 | if (PL_e_script) { |
ff5bdd37 | 3400 | PL_origfilename = savepvn("-e", 2); |
96436eeb | 3401 | } |
6c4ab083 GS |
3402 | else { |
3403 | /* if find_script() returns, it returns a malloc()-ed value */ | |
dd374669 | 3404 | scriptname = PL_origfilename = find_script(scriptname, dosearch, NULL, 1); |
6c4ab083 GS |
3405 | |
3406 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { | |
e1ec3a88 | 3407 | const char *s = scriptname + 8; |
ae3f3efd | 3408 | PL_fdscript = atoi(s); |
6c4ab083 GS |
3409 | while (isDIGIT(*s)) |
3410 | s++; | |
3411 | if (*s) { | |
ae3f3efd PS |
3412 | /* PSz 18 Feb 04 |
3413 | * Tell apart "normal" usage of fdscript, e.g. | |
3414 | * with bash on FreeBSD: | |
3415 | * perl <( echo '#!perl -DA'; echo 'print "$0\n"') | |
3416 | * from usage in suidperl. | |
3417 | * Does any "normal" usage leave garbage after the number??? | |
3418 | * Is it a mistake to use a similar /dev/fd/ construct for | |
3419 | * suidperl? | |
3420 | */ | |
3421 | PL_suidscript = 1; | |
3422 | /* PSz 20 Feb 04 | |
3423 | * Be supersafe and do some sanity-checks. | |
3424 | * Still, can we be sure we got the right thing? | |
3425 | */ | |
3426 | if (*s != '/') { | |
3427 | Perl_croak(aTHX_ "Wrong syntax (suid) fd script name \"%s\"\n", s); | |
3428 | } | |
3429 | if (! *(s+1)) { | |
3430 | Perl_croak(aTHX_ "Missing (suid) fd script name\n"); | |
3431 | } | |
6c4ab083 | 3432 | scriptname = savepv(s + 1); |
3280af22 | 3433 | Safefree(PL_origfilename); |
dd374669 | 3434 | PL_origfilename = (char *)scriptname; |
6c4ab083 GS |
3435 | } |
3436 | } | |
3437 | } | |
3438 | ||
05ec9bb3 | 3439 | CopFILE_free(PL_curcop); |
57843af0 | 3440 | CopFILE_set(PL_curcop, PL_origfilename); |
770526c1 | 3441 | if (*PL_origfilename == '-' && PL_origfilename[1] == '\0') |
dd374669 | 3442 | scriptname = (char *)""; |
ae3f3efd PS |
3443 | if (PL_fdscript >= 0) { |
3444 | PL_rsfp = PerlIO_fdopen(PL_fdscript,PERL_SCRIPT_MODE); | |
1b24ed4b MS |
3445 | # if defined(HAS_FCNTL) && defined(F_SETFD) |
3446 | if (PL_rsfp) | |
3447 | /* ensure close-on-exec */ | |
3448 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); | |
3449 | # endif | |
96436eeb | 3450 | } |
ae3f3efd PS |
3451 | #ifdef IAMSUID |
3452 | else { | |
86207487 NC |
3453 | Perl_croak(aTHX_ "sperl needs fd script\n" |
3454 | "You should not call sperl directly; do you need to " | |
3455 | "change a #! line\nfrom sperl to perl?\n"); | |
3456 | ||
ae3f3efd PS |
3457 | /* PSz 11 Nov 03 |
3458 | * Do not open (or do other fancy stuff) while setuid. | |
3459 | * Perl does the open, and hands script to suidperl on a fd; | |
3460 | * suidperl only does some checks, sets up UIDs and re-execs | |
3461 | * perl with that fd as it has always done. | |
3462 | */ | |
3463 | } | |
3464 | if (PL_suidscript != 1) { | |
3465 | Perl_croak(aTHX_ "suidperl needs (suid) fd script\n"); | |
3466 | } | |
3467 | #else /* IAMSUID */ | |
3280af22 | 3468 | else if (PL_preprocess) { |
dd374669 | 3469 | const char *cpp_cfg = CPPSTDIN; |
79cb57f6 | 3470 | SV *cpp = newSVpvn("",0); |
46fc3d4c | 3471 | SV *cmd = NEWSV(0,0); |
3472 | ||
ae58f265 JH |
3473 | if (cpp_cfg[0] == 0) /* PERL_MICRO? */ |
3474 | Perl_croak(aTHX_ "Can't run with cpp -P with CPPSTDIN undefined"); | |
46fc3d4c | 3475 | if (strEQ(cpp_cfg, "cppstdin")) |
cea2e8a9 | 3476 | Perl_sv_catpvf(aTHX_ cpp, "%s/", BIN_EXP); |
46fc3d4c | 3477 | sv_catpv(cpp, cpp_cfg); |
79072805 | 3478 | |
1b24ed4b MS |
3479 | # ifndef VMS |
3480 | sv_catpvn(sv, "-I", 2); | |
3481 | sv_catpv(sv,PRIVLIB_EXP); | |
3482 | # endif | |
46fc3d4c | 3483 | |
14953ddc MB |
3484 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3485 | "PL_preprocess: scriptname=\"%s\", cpp=\"%s\", sv=\"%s\", CPPMINUS=\"%s\"\n", | |
848ef955 NC |
3486 | scriptname, SvPVX_const (cpp), SvPVX_const (sv), |
3487 | CPPMINUS)); | |
1b24ed4b MS |
3488 | |
3489 | # if defined(MSDOS) || defined(WIN32) || defined(VMS) | |
3490 | quote = "\""; | |
3491 | # else | |
3492 | quote = "'"; | |
3493 | # endif | |
3494 | ||
3495 | # ifdef VMS | |
3496 | cpp_discard_flag = ""; | |
3497 | # else | |
3498 | cpp_discard_flag = "-C"; | |
3499 | # endif | |
3500 | ||
3501 | # ifdef OS2 | |
3502 | perl = os2_execname(aTHX); | |
3503 | # else | |
3504 | perl = PL_origargv[0]; | |
3505 | # endif | |
3506 | ||
3507 | ||
3508 | /* This strips off Perl comments which might interfere with | |
62375a60 NIS |
3509 | the C pre-processor, including #!. #line directives are |
3510 | deliberately stripped to avoid confusion with Perl's version | |
1b24ed4b MS |
3511 | of #line. FWP played some golf with it so it will fit |
3512 | into VMS's 255 character buffer. | |
3513 | */ | |
3514 | if( PL_doextract ) | |
3515 | code = "(1../^#!.*perl/i)|/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print"; | |
3516 | else | |
3517 | code = "/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print"; | |
3518 | ||
3519 | Perl_sv_setpvf(aTHX_ cmd, "\ | |
3520 | %s -ne%s%s%s %s | %"SVf" %s %"SVf" %s", | |
62375a60 | 3521 | perl, quote, code, quote, scriptname, cpp, |
1b24ed4b MS |
3522 | cpp_discard_flag, sv, CPPMINUS); |
3523 | ||
3280af22 | 3524 | PL_doextract = FALSE; |
0a6c758d | 3525 | |
62375a60 NIS |
3526 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3527 | "PL_preprocess: cmd=\"%s\"\n", | |
848ef955 | 3528 | SvPVX_const(cmd))); |
0a6c758d | 3529 | |
848ef955 | 3530 | PL_rsfp = PerlProc_popen((char *)SvPVX_const(cmd), (char *)"r"); |
46fc3d4c | 3531 | SvREFCNT_dec(cmd); |
3532 | SvREFCNT_dec(cpp); | |
79072805 LW |
3533 | } |
3534 | else if (!*scriptname) { | |
bbce6d69 | 3535 | forbid_setid("program input from stdin"); |
3280af22 | 3536 | PL_rsfp = PerlIO_stdin(); |
79072805 | 3537 | } |
96436eeb | 3538 | else { |
3280af22 | 3539 | PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE); |
1b24ed4b MS |
3540 | # if defined(HAS_FCNTL) && defined(F_SETFD) |
3541 | if (PL_rsfp) | |
3542 | /* ensure close-on-exec */ | |
3543 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); | |
3544 | # endif | |
96436eeb | 3545 | } |
ae3f3efd | 3546 | #endif /* IAMSUID */ |
3280af22 | 3547 | if (!PL_rsfp) { |
447218f8 | 3548 | /* PSz 16 Sep 03 Keep neat error message */ |
fa3aa65a JC |
3549 | Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n", |
3550 | CopFILE(PL_curcop), Strerror(errno)); | |
13281fa4 | 3551 | } |
79072805 | 3552 | } |
8d063cd8 | 3553 | |
7b89560d JH |
3554 | /* Mention |
3555 | * I_SYSSTATVFS HAS_FSTATVFS | |
3556 | * I_SYSMOUNT | |
c890dc6c | 3557 | * I_STATFS HAS_FSTATFS HAS_GETFSSTAT |
7b89560d JH |
3558 | * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT |
3559 | * here so that metaconfig picks them up. */ | |
3560 | ||
104d25b7 | 3561 | #ifdef IAMSUID |
864dbfa3 | 3562 | STATIC int |
e688b231 | 3563 | S_fd_on_nosuid_fs(pTHX_ int fd) |
104d25b7 | 3564 | { |
ae3f3efd PS |
3565 | /* PSz 27 Feb 04 |
3566 | * We used to do this as "plain" user (after swapping UIDs with setreuid); | |
3567 | * but is needed also on machines without setreuid. | |
3568 | * Seems safe enough to run as root. | |
3569 | */ | |
0545a864 JH |
3570 | int check_okay = 0; /* able to do all the required sys/libcalls */ |
3571 | int on_nosuid = 0; /* the fd is on a nosuid fs */ | |
ae3f3efd PS |
3572 | /* PSz 12 Nov 03 |
3573 | * Need to check noexec also: nosuid might not be set, the average | |
3574 | * sysadmin would say that nosuid is irrelevant once he sets noexec. | |
3575 | */ | |
3576 | int on_noexec = 0; /* the fd is on a noexec fs */ | |
3577 | ||
104d25b7 | 3578 | /* |
ad27e871 | 3579 | * Preferred order: fstatvfs(), fstatfs(), ustat()+getmnt(), getmntent(). |
e688b231 | 3580 | * fstatvfs() is UNIX98. |
0545a864 | 3581 | * fstatfs() is 4.3 BSD. |
ad27e871 | 3582 | * ustat()+getmnt() is pre-4.3 BSD. |
0545a864 JH |
3583 | * getmntent() is O(number-of-mounted-filesystems) and can hang on |
3584 | * an irrelevant filesystem while trying to reach the right one. | |
104d25b7 JH |
3585 | */ |
3586 | ||
6439433f JH |
3587 | #undef FD_ON_NOSUID_CHECK_OKAY /* found the syscalls to do the check? */ |
3588 | ||
3589 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3590 | defined(HAS_FSTATVFS) | |
3591 | # define FD_ON_NOSUID_CHECK_OKAY | |
104d25b7 | 3592 | struct statvfs stfs; |
6439433f | 3593 | |
104d25b7 JH |
3594 | check_okay = fstatvfs(fd, &stfs) == 0; |
3595 | on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID); | |
ae3f3efd PS |
3596 | #ifdef ST_NOEXEC |
3597 | /* ST_NOEXEC certainly absent on AIX 5.1, and doesn't seem to be documented | |
3598 | on platforms where it is present. */ | |
3599 | on_noexec = check_okay && (stfs.f_flag & ST_NOEXEC); | |
3600 | #endif | |
6439433f | 3601 | # endif /* fstatvfs */ |
ac27b0f5 | 3602 | |
6439433f JH |
3603 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ |
3604 | defined(PERL_MOUNT_NOSUID) && \ | |
ae3f3efd | 3605 | defined(PERL_MOUNT_NOEXEC) && \ |
6439433f JH |
3606 | defined(HAS_FSTATFS) && \ |
3607 | defined(HAS_STRUCT_STATFS) && \ | |
3608 | defined(HAS_STRUCT_STATFS_F_FLAGS) | |
3609 | # define FD_ON_NOSUID_CHECK_OKAY | |
e688b231 | 3610 | struct statfs stfs; |
6439433f | 3611 | |
104d25b7 | 3612 | check_okay = fstatfs(fd, &stfs) == 0; |
104d25b7 | 3613 | on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID); |
ae3f3efd | 3614 | on_noexec = check_okay && (stfs.f_flags & PERL_MOUNT_NOEXEC); |
6439433f JH |
3615 | # endif /* fstatfs */ |
3616 | ||
3617 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3618 | defined(PERL_MOUNT_NOSUID) && \ | |
ae3f3efd | 3619 | defined(PERL_MOUNT_NOEXEC) && \ |
6439433f JH |
3620 | defined(HAS_FSTAT) && \ |
3621 | defined(HAS_USTAT) && \ | |
3622 | defined(HAS_GETMNT) && \ | |
3623 | defined(HAS_STRUCT_FS_DATA) && \ | |
3624 | defined(NOSTAT_ONE) | |
3625 | # define FD_ON_NOSUID_CHECK_OKAY | |
c623ac67 | 3626 | Stat_t fdst; |
6439433f | 3627 | |
0545a864 | 3628 | if (fstat(fd, &fdst) == 0) { |
6439433f JH |
3629 | struct ustat us; |
3630 | if (ustat(fdst.st_dev, &us) == 0) { | |
3631 | struct fs_data fsd; | |
3632 | /* NOSTAT_ONE here because we're not examining fields which | |
3633 | * vary between that case and STAT_ONE. */ | |
ad27e871 | 3634 | if (getmnt((int*)0, &fsd, (int)0, NOSTAT_ONE, us.f_fname) == 0) { |
6439433f JH |
3635 | size_t cmplen = sizeof(us.f_fname); |
3636 | if (sizeof(fsd.fd_req.path) < cmplen) | |
3637 | cmplen = sizeof(fsd.fd_req.path); | |
3638 | if (strnEQ(fsd.fd_req.path, us.f_fname, cmplen) && | |
3639 | fdst.st_dev == fsd.fd_req.dev) { | |
3640 | check_okay = 1; | |
3641 | on_nosuid = fsd.fd_req.flags & PERL_MOUNT_NOSUID; | |
ae3f3efd | 3642 | on_noexec = fsd.fd_req.flags & PERL_MOUNT_NOEXEC; |
6439433f JH |
3643 | } |
3644 | } | |
3645 | } | |
3646 | } | |
0545a864 | 3647 | } |
6439433f JH |
3648 | # endif /* fstat+ustat+getmnt */ |
3649 | ||
3650 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3651 | defined(HAS_GETMNTENT) && \ | |
3652 | defined(HAS_HASMNTOPT) && \ | |
ae3f3efd PS |
3653 | defined(MNTOPT_NOSUID) && \ |
3654 | defined(MNTOPT_NOEXEC) | |
6439433f JH |
3655 | # define FD_ON_NOSUID_CHECK_OKAY |
3656 | FILE *mtab = fopen("/etc/mtab", "r"); | |
3657 | struct mntent *entry; | |
c623ac67 | 3658 | Stat_t stb, fsb; |
104d25b7 JH |
3659 | |
3660 | if (mtab && (fstat(fd, &stb) == 0)) { | |
6439433f JH |
3661 | while (entry = getmntent(mtab)) { |
3662 | if (stat(entry->mnt_dir, &fsb) == 0 | |
3663 | && fsb.st_dev == stb.st_dev) | |
3664 | { | |
3665 | /* found the filesystem */ | |
3666 | check_okay = 1; | |
3667 | if (hasmntopt(entry, MNTOPT_NOSUID)) | |
3668 | on_nosuid = 1; | |
ae3f3efd PS |
3669 | if (hasmntopt(entry, MNTOPT_NOEXEC)) |
3670 | on_noexec = 1; | |
6439433f JH |
3671 | break; |
3672 | } /* A single fs may well fail its stat(). */ | |
3673 | } | |
104d25b7 JH |
3674 | } |
3675 | if (mtab) | |
6439433f JH |
3676 | fclose(mtab); |
3677 | # endif /* getmntent+hasmntopt */ | |
0545a864 | 3678 | |
ac27b0f5 | 3679 | if (!check_okay) |
ae3f3efd PS |
3680 | Perl_croak(aTHX_ "Can't check filesystem of script \"%s\" for nosuid/noexec", PL_origfilename); |
3681 | if (on_nosuid) | |
3682 | Perl_croak(aTHX_ "Setuid script \"%s\" on nosuid filesystem", PL_origfilename); | |
3683 | if (on_noexec) | |
3684 | Perl_croak(aTHX_ "Setuid script \"%s\" on noexec filesystem", PL_origfilename); | |
3685 | return ((!check_okay) || on_nosuid || on_noexec); | |
104d25b7 JH |
3686 | } |
3687 | #endif /* IAMSUID */ | |
3688 | ||
76e3520e | 3689 | STATIC void |
e1ec3a88 | 3690 | S_validate_suid(pTHX_ const char *validarg, const char *scriptname) |
79072805 | 3691 | { |
27da23d5 | 3692 | dVAR; |
155aba94 | 3693 | #ifdef IAMSUID |
ae3f3efd PS |
3694 | /* int which; */ |
3695 | #endif /* IAMSUID */ | |
96436eeb | 3696 | |
13281fa4 LW |
3697 | /* do we need to emulate setuid on scripts? */ |
3698 | ||
3699 | /* This code is for those BSD systems that have setuid #! scripts disabled | |
3700 | * in the kernel because of a security problem. Merely defining DOSUID | |
3701 | * in perl will not fix that problem, but if you have disabled setuid | |
3702 | * scripts in the kernel, this will attempt to emulate setuid and setgid | |
3703 | * on scripts that have those now-otherwise-useless bits set. The setuid | |
27e2fb84 LW |
3704 | * root version must be called suidperl or sperlN.NNN. If regular perl |
3705 | * discovers that it has opened a setuid script, it calls suidperl with | |
3706 | * the same argv that it had. If suidperl finds that the script it has | |
3707 | * just opened is NOT setuid root, it sets the effective uid back to the | |
3708 | * uid. We don't just make perl setuid root because that loses the | |
3709 | * effective uid we had before invoking perl, if it was different from the | |
3710 | * uid. | |
ae3f3efd PS |
3711 | * PSz 27 Feb 04 |
3712 | * Description/comments above do not match current workings: | |
3713 | * suidperl must be hardlinked to sperlN.NNN (that is what we exec); | |
3714 | * suidperl called with script open and name changed to /dev/fd/N/X; | |
3715 | * suidperl croaks if script is not setuid; | |
3716 | * making perl setuid would be a huge security risk (and yes, that | |
3717 | * would lose any euid we might have had). | |
13281fa4 LW |
3718 | * |
3719 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must | |
3720 | * be defined in suidperl only. suidperl must be setuid root. The | |
3721 | * Configure script will set this up for you if you want it. | |
3722 | */ | |
a687059c | 3723 | |
13281fa4 | 3724 | #ifdef DOSUID |
dd720ed5 | 3725 | const char *s, *s2; |
a0d0e21e | 3726 | |
b28d0864 | 3727 | if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */ |
cea2e8a9 | 3728 | Perl_croak(aTHX_ "Can't stat script \"%s\"",PL_origfilename); |
ae3f3efd | 3729 | if (PL_statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 | 3730 | I32 len; |
dd720ed5 | 3731 | const char *linestr; |
13281fa4 | 3732 | |
a687059c | 3733 | #ifdef IAMSUID |
ae3f3efd PS |
3734 | if (PL_fdscript < 0 || PL_suidscript != 1) |
3735 | Perl_croak(aTHX_ "Need (suid) fdscript in suidperl\n"); /* We already checked this */ | |
3736 | /* PSz 11 Nov 03 | |
3737 | * Since the script is opened by perl, not suidperl, some of these | |
3738 | * checks are superfluous. Leaving them in probably does not lower | |
3739 | * security(?!). | |
3740 | */ | |
3741 | /* PSz 27 Feb 04 | |
3742 | * Do checks even for systems with no HAS_SETREUID. | |
3743 | * We used to swap, then re-swap UIDs with | |
3744 | #ifdef HAS_SETREUID | |
3745 | if (setreuid(PL_euid,PL_uid) < 0 | |
3746 | || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid) | |
3747 | Perl_croak(aTHX_ "Can't swap uid and euid"); | |
3748 | #endif | |
3749 | #ifdef HAS_SETREUID | |
3750 | if (setreuid(PL_uid,PL_euid) < 0 | |
3751 | || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid) | |
3752 | Perl_croak(aTHX_ "Can't reswap uid and euid"); | |
3753 | #endif | |
3754 | */ | |
3755 | ||
a687059c LW |
3756 | /* On this access check to make sure the directories are readable, |
3757 | * there is actually a small window that the user could use to make | |
3758 | * filename point to an accessible directory. So there is a faint | |
3759 | * chance that someone could execute a setuid script down in a | |
3760 | * non-accessible directory. I don't know what to do about that. | |
3761 | * But I don't think it's too important. The manual lies when | |
3762 | * it says access() is useful in setuid programs. | |
ae3f3efd PS |
3763 | * |
3764 | * So, access() is pretty useless... but not harmful... do anyway. | |
a687059c | 3765 | */ |
e57400b1 | 3766 | if (PerlLIO_access(CopFILE(PL_curcop),1)) { /*double check*/ |
ae3f3efd | 3767 | Perl_croak(aTHX_ "Can't access() script\n"); |
e57400b1 | 3768 | } |
ae3f3efd | 3769 | |
a687059c LW |
3770 | /* If we can swap euid and uid, then we can determine access rights |
3771 | * with a simple stat of the file, and then compare device and | |
3772 | * inode to make sure we did stat() on the same file we opened. | |
3773 | * Then we just have to make sure he or she can execute it. | |
ae3f3efd PS |
3774 | * |
3775 | * PSz 24 Feb 04 | |
3776 | * As the script is opened by perl, not suidperl, we do not need to | |
3777 | * care much about access rights. | |
3778 | * | |
3779 | * The 'script changed' check is needed, or we can get lied to | |
3780 | * about $0 with e.g. | |
3781 | * suidperl /dev/fd/4//bin/x 4<setuidscript | |
3782 | * Without HAS_SETREUID, is it safe to stat() as root? | |
3783 | * | |
3784 | * Are there any operating systems that pass /dev/fd/xxx for setuid | |
3785 | * scripts, as suggested/described in perlsec(1)? Surely they do not | |
3786 | * pass the script name as we do, so the "script changed" test would | |
3787 | * fail for them... but we never get here with | |
3788 | * SETUID_SCRIPTS_ARE_SECURE_NOW defined. | |
3789 | * | |
3790 | * This is one place where we must "lie" about return status: not | |
3791 | * say if the stat() failed. We are doing this as root, and could | |
3792 | * be tricked into reporting existence or not of files that the | |
3793 | * "plain" user cannot even see. | |
a687059c LW |
3794 | */ |
3795 | { | |
c623ac67 | 3796 | Stat_t tmpstatbuf; |
ae3f3efd PS |
3797 | if (PerlLIO_stat(CopFILE(PL_curcop),&tmpstatbuf) < 0 || |
3798 | tmpstatbuf.st_dev != PL_statbuf.st_dev || | |
b28d0864 | 3799 | tmpstatbuf.st_ino != PL_statbuf.st_ino) { |
ae3f3efd | 3800 | Perl_croak(aTHX_ "Setuid script changed\n"); |
a687059c | 3801 | } |
ae3f3efd | 3802 | |
a687059c | 3803 | } |
ae3f3efd PS |
3804 | if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */ |
3805 | Perl_croak(aTHX_ "Real UID cannot exec script\n"); | |
3806 | ||
3807 | /* PSz 27 Feb 04 | |
3808 | * We used to do this check as the "plain" user (after swapping | |
3809 | * UIDs). But the check for nosuid and noexec filesystem is needed, | |
3810 | * and should be done even without HAS_SETREUID. (Maybe those | |
3811 | * operating systems do not have such mount options anyway...) | |
3812 | * Seems safe enough to do as root. | |
3813 | */ | |
3814 | #if !defined(NO_NOSUID_CHECK) | |
3815 | if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp))) { | |
3816 | Perl_croak(aTHX_ "Setuid script on nosuid or noexec filesystem\n"); | |
3817 | } | |
3818 | #endif | |
a687059c LW |
3819 | #endif /* IAMSUID */ |
3820 | ||
e57400b1 | 3821 | if (!S_ISREG(PL_statbuf.st_mode)) { |
ae3f3efd | 3822 | Perl_croak(aTHX_ "Setuid script not plain file\n"); |
e57400b1 | 3823 | } |
b28d0864 | 3824 | if (PL_statbuf.st_mode & S_IWOTH) |
cea2e8a9 | 3825 | Perl_croak(aTHX_ "Setuid/gid script is writable by world"); |
6b88bc9c | 3826 | PL_doswitches = FALSE; /* -s is insecure in suid */ |
ae3f3efd | 3827 | /* PSz 13 Nov 03 But -s was caught elsewhere ... so unsetting it here is useless(?!) */ |
57843af0 | 3828 | CopLINE_inc(PL_curcop); |
dd720ed5 | 3829 | linestr = SvPV_nolen_const(PL_linestr); |
6b88bc9c | 3830 | if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch || |
dd720ed5 | 3831 | strnNE(linestr,"#!",2) ) /* required even on Sys V */ |
cea2e8a9 | 3832 | Perl_croak(aTHX_ "No #! line"); |
dd720ed5 NC |
3833 | linestr+=2; |
3834 | s = linestr; | |
ae3f3efd PS |
3835 | /* PSz 27 Feb 04 */ |
3836 | /* Sanity check on line length */ | |
3837 | if (strlen(s) < 1 || strlen(s) > 4000) | |
3838 | Perl_croak(aTHX_ "Very long #! line"); | |
3839 | /* Allow more than a single space after #! */ | |
3840 | while (isSPACE(*s)) s++; | |
3841 | /* Sanity check on buffer end */ | |
3842 | while ((*s) && !isSPACE(*s)) s++; | |
dd720ed5 | 3843 | for (s2 = s; (s2 > linestr && |
3792a11b NC |
3844 | (isDIGIT(s2[-1]) || s2[-1] == '.' || s2[-1] == '_' |
3845 | || s2[-1] == '-')); s2--) ; | |
ae3f3efd | 3846 | /* Sanity check on buffer start */ |
dd720ed5 NC |
3847 | if ( (s2-4 < linestr || strnNE(s2-4,"perl",4)) && |
3848 | (s-9 < linestr || strnNE(s-9,"perl",4)) ) | |
cea2e8a9 | 3849 | Perl_croak(aTHX_ "Not a perl script"); |
a687059c | 3850 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 LW |
3851 | /* |
3852 | * #! arg must be what we saw above. They can invoke it by | |
3853 | * mentioning suidperl explicitly, but they may not add any strange | |
3854 | * arguments beyond what #! says if they do invoke suidperl that way. | |
3855 | */ | |
ae3f3efd PS |
3856 | /* |
3857 | * The way validarg was set up, we rely on the kernel to start | |
3858 | * scripts with argv[1] set to contain all #! line switches (the | |
3859 | * whole line). | |
3860 | */ | |
3861 | /* | |
3862 | * Check that we got all the arguments listed in the #! line (not | |
3863 | * just that there are no extraneous arguments). Might not matter | |
3864 | * much, as switches from #! line seem to be acted upon (also), and | |
3865 | * so may be checked and trapped in perl. But, security checks must | |
3866 | * be done in suidperl and not deferred to perl. Note that suidperl | |
3867 | * does not get around to parsing (and checking) the switches on | |
3868 | * the #! line (but execs perl sooner). | |
3869 | * Allow (require) a trailing newline (which may be of two | |
3870 | * characters on some architectures?) (but no other trailing | |
3871 | * whitespace). | |
3872 | */ | |
13281fa4 LW |
3873 | len = strlen(validarg); |
3874 | if (strEQ(validarg," PHOOEY ") || | |
ae3f3efd PS |
3875 | strnNE(s,validarg,len) || !isSPACE(s[len]) || |
3876 | !(strlen(s) == len+1 || (strlen(s) == len+2 && isSPACE(s[len+1])))) | |
cea2e8a9 | 3877 | Perl_croak(aTHX_ "Args must match #! line"); |
a687059c LW |
3878 | |
3879 | #ifndef IAMSUID | |
ae3f3efd PS |
3880 | if (PL_fdscript < 0 && |
3881 | PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) && | |
b28d0864 NIS |
3882 | PL_euid == PL_statbuf.st_uid) |
3883 | if (!PL_do_undump) | |
cea2e8a9 | 3884 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
11fb1898 | 3885 | FIX YOUR KERNEL, OR PUT A C WRAPPER AROUND THIS SCRIPT!\n"); |
a687059c | 3886 | #endif /* IAMSUID */ |
13281fa4 | 3887 | |
ae3f3efd PS |
3888 | if (PL_fdscript < 0 && |
3889 | PL_euid) { /* oops, we're not the setuid root perl */ | |
3890 | /* PSz 18 Feb 04 | |
3891 | * When root runs a setuid script, we do not go through the same | |
3892 | * steps of execing sperl and then perl with fd scripts, but | |
3893 | * simply set up UIDs within the same perl invocation; so do | |
3894 | * not have the same checks (on options, whatever) that we have | |
3895 | * for plain users. No problem really: would have to be a script | |
3896 | * that does not actually work for plain users; and if root is | |
3897 | * foolish and can be persuaded to run such an unsafe script, he | |
3898 | * might run also non-setuid ones, and deserves what he gets. | |
3899 | * | |
3900 | * Or, we might drop the PL_euid check above (and rely just on | |
3901 | * PL_fdscript to avoid loops), and do the execs | |
3902 | * even for root. | |
3903 | */ | |
13281fa4 | 3904 | #ifndef IAMSUID |
ae3f3efd PS |
3905 | int which; |
3906 | /* PSz 11 Nov 03 | |
3907 | * Pass fd script to suidperl. | |
3908 | * Exec suidperl, substituting fd script for scriptname. | |
3909 | * Pass script name as "subdir" of fd, which perl will grok; | |
3910 | * in fact will use that to distinguish this from "normal" | |
3911 | * usage, see comments above. | |
3912 | */ | |
3913 | PerlIO_rewind(PL_rsfp); | |
3914 | PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
3915 | /* PSz 27 Feb 04 Sanity checks on scriptname */ | |
3916 | if ((!scriptname) || (!*scriptname) ) { | |
3917 | Perl_croak(aTHX_ "No setuid script name\n"); | |
3918 | } | |
3919 | if (*scriptname == '-') { | |
3920 | Perl_croak(aTHX_ "Setuid script name may not begin with dash\n"); | |
3921 | /* Or we might confuse it with an option when replacing | |
3922 | * name in argument list, below (though we do pointer, not | |
3923 | * string, comparisons). | |
3924 | */ | |
3925 | } | |
3926 | for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; | |
3927 | if (!PL_origargv[which]) { | |
3928 | Perl_croak(aTHX_ "Can't change argv to have fd script\n"); | |
3929 | } | |
3930 | PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s", | |
3931 | PerlIO_fileno(PL_rsfp), PL_origargv[which])); | |
3932 | #if defined(HAS_FCNTL) && defined(F_SETFD) | |
3933 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */ | |
3934 | #endif | |
b35112e7 | 3935 | PERL_FPU_PRE_EXEC |
a7cb1f99 | 3936 | PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT, BIN_EXP, |
273cf8d1 GS |
3937 | (int)PERL_REVISION, (int)PERL_VERSION, |
3938 | (int)PERL_SUBVERSION), PL_origargv); | |
b35112e7 | 3939 | PERL_FPU_POST_EXEC |
ae3f3efd PS |
3940 | #endif /* IAMSUID */ |
3941 | Perl_croak(aTHX_ "Can't do setuid (cannot exec sperl)\n"); | |
13281fa4 LW |
3942 | } |
3943 | ||
b28d0864 | 3944 | if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) { |
ae3f3efd PS |
3945 | /* PSz 26 Feb 04 |
3946 | * This seems back to front: we try HAS_SETEGID first; if not available | |
3947 | * then try HAS_SETREGID; as a last chance we try HAS_SETRESGID. May be OK | |
3948 | * in the sense that we only want to set EGID; but are there any machines | |
3949 | * with either of the latter, but not the former? Same with UID, later. | |
3950 | */ | |
fe14fcc3 | 3951 | #ifdef HAS_SETEGID |
b28d0864 | 3952 | (void)setegid(PL_statbuf.st_gid); |
a687059c | 3953 | #else |
fe14fcc3 | 3954 | #ifdef HAS_SETREGID |
b28d0864 | 3955 | (void)setregid((Gid_t)-1,PL_statbuf.st_gid); |
85e6fe83 LW |
3956 | #else |
3957 | #ifdef HAS_SETRESGID | |
b28d0864 | 3958 | (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1); |
a687059c | 3959 | #else |
b28d0864 | 3960 | PerlProc_setgid(PL_statbuf.st_gid); |
a687059c LW |
3961 | #endif |
3962 | #endif | |
85e6fe83 | 3963 | #endif |
b28d0864 | 3964 | if (PerlProc_getegid() != PL_statbuf.st_gid) |
cea2e8a9 | 3965 | Perl_croak(aTHX_ "Can't do setegid!\n"); |
83025b21 | 3966 | } |
b28d0864 NIS |
3967 | if (PL_statbuf.st_mode & S_ISUID) { |
3968 | if (PL_statbuf.st_uid != PL_euid) | |
fe14fcc3 | 3969 | #ifdef HAS_SETEUID |
b28d0864 | 3970 | (void)seteuid(PL_statbuf.st_uid); /* all that for this */ |
a687059c | 3971 | #else |
fe14fcc3 | 3972 | #ifdef HAS_SETREUID |
b28d0864 | 3973 | (void)setreuid((Uid_t)-1,PL_statbuf.st_uid); |
85e6fe83 LW |
3974 | #else |
3975 | #ifdef HAS_SETRESUID | |
b28d0864 | 3976 | (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1); |
a687059c | 3977 | #else |
b28d0864 | 3978 | PerlProc_setuid(PL_statbuf.st_uid); |
a687059c LW |
3979 | #endif |
3980 | #endif | |
85e6fe83 | 3981 | #endif |
b28d0864 | 3982 | if (PerlProc_geteuid() != PL_statbuf.st_uid) |
cea2e8a9 | 3983 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
a687059c | 3984 | } |
b28d0864 | 3985 | else if (PL_uid) { /* oops, mustn't run as root */ |
fe14fcc3 | 3986 | #ifdef HAS_SETEUID |
b28d0864 | 3987 | (void)seteuid((Uid_t)PL_uid); |
a687059c | 3988 | #else |
fe14fcc3 | 3989 | #ifdef HAS_SETREUID |
b28d0864 | 3990 | (void)setreuid((Uid_t)-1,(Uid_t)PL_uid); |
a687059c | 3991 | #else |
85e6fe83 | 3992 | #ifdef HAS_SETRESUID |
b28d0864 | 3993 | (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1); |
85e6fe83 | 3994 | #else |
b28d0864 | 3995 | PerlProc_setuid((Uid_t)PL_uid); |
85e6fe83 | 3996 | #endif |
a687059c LW |
3997 | #endif |
3998 | #endif | |
b28d0864 | 3999 | if (PerlProc_geteuid() != PL_uid) |
cea2e8a9 | 4000 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
83025b21 | 4001 | } |
748a9306 | 4002 | init_ids(); |
b28d0864 | 4003 | if (!cando(S_IXUSR,TRUE,&PL_statbuf)) |
ae3f3efd | 4004 | Perl_croak(aTHX_ "Effective UID cannot exec script\n"); /* they can't do this */ |
13281fa4 LW |
4005 | } |
4006 | #ifdef IAMSUID | |
ae3f3efd | 4007 | else if (PL_preprocess) /* PSz 13 Nov 03 Caught elsewhere, useless(?!) here */ |
cea2e8a9 | 4008 | Perl_croak(aTHX_ "-P not allowed for setuid/setgid script\n"); |
ae3f3efd PS |
4009 | else if (PL_fdscript < 0 || PL_suidscript != 1) |
4010 | /* PSz 13 Nov 03 Caught elsewhere, useless(?!) here */ | |
4011 | Perl_croak(aTHX_ "(suid) fdscript needed in suidperl\n"); | |
e57400b1 | 4012 | else { |
ae3f3efd PS |
4013 | /* PSz 16 Sep 03 Keep neat error message */ |
4014 | Perl_croak(aTHX_ "Script is not setuid/setgid in suidperl\n"); | |
e57400b1 | 4015 | } |
96436eeb | 4016 | |
4017 | /* We absolutely must clear out any saved ids here, so we */ | |
4018 | /* exec the real perl, substituting fd script for scriptname. */ | |
4019 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ | |
ae3f3efd PS |
4020 | /* |
4021 | * It might be thought that using setresgid and/or setresuid (changed to | |
4022 | * set the saved IDs) above might obviate the need to exec, and we could | |
4023 | * go on to "do the perl thing". | |
4024 | * | |
4025 | * Is there such a thing as "saved GID", and is that set for setuid (but | |
4026 | * not setgid) execution like suidperl? Without exec, it would not be | |
4027 | * cleared for setuid (but not setgid) scripts (or might need a dummy | |
4028 | * setresgid). | |
4029 | * | |
4030 | * We need suidperl to do the exact same argument checking that perl | |
4031 | * does. Thus it cannot be very small; while it could be significantly | |
4032 | * smaller, it is safer (simpler?) to make it essentially the same | |
4033 | * binary as perl (but they are not identical). - Maybe could defer that | |
4034 | * check to the invoked perl, and suidperl be a tiny wrapper instead; | |
4035 | * but prefer to do thorough checks in suidperl itself. Such deferral | |
4036 | * would make suidperl security rely on perl, a design no-no. | |
4037 | * | |
4038 | * Setuid things should be short and simple, thus easy to understand and | |
4039 | * verify. They should do their "own thing", without influence by | |
4040 | * attackers. It may help if their internal execution flow is fixed, | |
4041 | * regardless of platform: it may be best to exec anyway. | |
4042 | * | |
4043 | * Suidperl should at least be conceptually simple: a wrapper only, | |
4044 | * never to do any real perl. Maybe we should put | |
4045 | * #ifdef IAMSUID | |
4046 | * Perl_croak(aTHX_ "Suidperl should never do real perl\n"); | |
4047 | * #endif | |
4048 | * into the perly bits. | |
4049 | */ | |
b28d0864 NIS |
4050 | PerlIO_rewind(PL_rsfp); |
4051 | PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
ae3f3efd PS |
4052 | /* PSz 11 Nov 03 |
4053 | * Keep original arguments: suidperl already has fd script. | |
4054 | */ | |
4055 | /* for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; */ | |
4056 | /* if (!PL_origargv[which]) { */ | |
4057 | /* errno = EPERM; */ | |
4058 | /* Perl_croak(aTHX_ "Permission denied\n"); */ | |
4059 | /* } */ | |
4060 | /* PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s", */ | |
4061 | /* PerlIO_fileno(PL_rsfp), PL_origargv[which])); */ | |
96436eeb | 4062 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
b28d0864 | 4063 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb | 4064 | #endif |
b35112e7 | 4065 | PERL_FPU_PRE_EXEC |
a7cb1f99 | 4066 | PerlProc_execv(Perl_form(aTHX_ "%s/perl"PERL_FS_VER_FMT, BIN_EXP, |
273cf8d1 GS |
4067 | (int)PERL_REVISION, (int)PERL_VERSION, |
4068 | (int)PERL_SUBVERSION), PL_origargv);/* try again */ | |
b35112e7 | 4069 | PERL_FPU_POST_EXEC |
ae3f3efd | 4070 | Perl_croak(aTHX_ "Can't do setuid (suidperl cannot exec perl)\n"); |
13281fa4 | 4071 | #endif /* IAMSUID */ |
a687059c | 4072 | #else /* !DOSUID */ |
3280af22 | 4073 | if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */ |
a687059c | 4074 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW |
b28d0864 NIS |
4075 | PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */ |
4076 | if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID) | |
a687059c | 4077 | || |
b28d0864 | 4078 | (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID) |
a687059c | 4079 | ) |
b28d0864 | 4080 | if (!PL_do_undump) |
cea2e8a9 | 4081 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
4082 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
4083 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ | |
4084 | /* not set-id, must be wrapped */ | |
a687059c | 4085 | } |
13281fa4 | 4086 | #endif /* DOSUID */ |
dd374669 AL |
4087 | (void)validarg; |
4088 | (void)scriptname; | |
79072805 | 4089 | } |
13281fa4 | 4090 | |
76e3520e | 4091 | STATIC void |
cea2e8a9 | 4092 | S_find_beginning(pTHX) |
79072805 | 4093 | { |
dd374669 AL |
4094 | register char *s; |
4095 | register const char *s2; | |
e55ac0fa HS |
4096 | #ifdef MACOS_TRADITIONAL |
4097 | int maclines = 0; | |
4098 | #endif | |
33b78306 LW |
4099 | |
4100 | /* skip forward in input to the real script? */ | |
4101 | ||
bbce6d69 | 4102 | forbid_setid("-x"); |
bf4acbe4 | 4103 | #ifdef MACOS_TRADITIONAL |
084592ab | 4104 | /* Since the Mac OS does not honor #! arguments for us, we do it ourselves */ |
ac27b0f5 | 4105 | |
bf4acbe4 GS |
4106 | while (PL_doextract || gMacPerl_AlwaysExtract) { |
4107 | if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch) { | |
4108 | if (!gMacPerl_AlwaysExtract) | |
4109 | Perl_croak(aTHX_ "No Perl script found in input\n"); | |
e55ac0fa | 4110 | |
bf4acbe4 GS |
4111 | if (PL_doextract) /* require explicit override ? */ |
4112 | if (!OverrideExtract(PL_origfilename)) | |
4113 | Perl_croak(aTHX_ "User aborted script\n"); | |
4114 | else | |
4115 | PL_doextract = FALSE; | |
e55ac0fa | 4116 | |
bf4acbe4 GS |
4117 | /* Pater peccavi, file does not have #! */ |
4118 | PerlIO_rewind(PL_rsfp); | |
e55ac0fa | 4119 | |
bf4acbe4 GS |
4120 | break; |
4121 | } | |
4122 | #else | |
3280af22 NIS |
4123 | while (PL_doextract) { |
4124 | if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch) | |
cea2e8a9 | 4125 | Perl_croak(aTHX_ "No Perl script found in input\n"); |
bf4acbe4 | 4126 | #endif |
4f0c37ba IZ |
4127 | s2 = s; |
4128 | if (*s == '#' && s[1] == '!' && ((s = instr(s,"perl")) || (s = instr(s2,"PERL")))) { | |
3280af22 NIS |
4129 | PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */ |
4130 | PL_doextract = FALSE; | |
6e72f9df | 4131 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
4132 | s2 = s; | |
4133 | while (*s == ' ' || *s == '\t') s++; | |
4134 | if (*s++ == '-') { | |
3792a11b NC |
4135 | while (isDIGIT(s2[-1]) || s2[-1] == '-' || s2[-1] == '.' |
4136 | || s2[-1] == '_') s2--; | |
6e72f9df | 4137 | if (strnEQ(s2-4,"perl",4)) |
155aba94 GS |
4138 | while ((s = moreswitches(s))) |
4139 | ; | |
33b78306 | 4140 | } |
95e8664e | 4141 | #ifdef MACOS_TRADITIONAL |
e55ac0fa HS |
4142 | /* We are always searching for the #!perl line in MacPerl, |
4143 | * so if we find it, still keep the line count correct | |
4144 | * by counting lines we already skipped over | |
4145 | */ | |
4146 | for (; maclines > 0 ; maclines--) | |
4147 | PerlIO_ungetc(PL_rsfp, '\n'); | |
4148 | ||
95e8664e | 4149 | break; |
e55ac0fa HS |
4150 | |
4151 | /* gMacPerl_AlwaysExtract is false in MPW tool */ | |
4152 | } else if (gMacPerl_AlwaysExtract) { | |
4153 | ++maclines; | |
95e8664e | 4154 | #endif |
83025b21 LW |
4155 | } |
4156 | } | |
4157 | } | |
4158 | ||
afe37c7d | 4159 | |
76e3520e | 4160 | STATIC void |
cea2e8a9 | 4161 | S_init_ids(pTHX) |
352d5a3a | 4162 | { |
d8eceb89 JH |
4163 | PL_uid = PerlProc_getuid(); |
4164 | PL_euid = PerlProc_geteuid(); | |
4165 | PL_gid = PerlProc_getgid(); | |
4166 | PL_egid = PerlProc_getegid(); | |
748a9306 | 4167 | #ifdef VMS |
b28d0864 NIS |
4168 | PL_uid |= PL_gid << 16; |
4169 | PL_euid |= PL_egid << 16; | |
748a9306 | 4170 | #endif |
22f7c9c9 JH |
4171 | /* Should not happen: */ |
4172 | CHECK_MALLOC_TAINT(PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
3280af22 | 4173 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
ae3f3efd PS |
4174 | /* BUG */ |
4175 | /* PSz 27 Feb 04 | |
4176 | * Should go by suidscript, not uid!=euid: why disallow | |
4177 | * system("ls") in scripts run from setuid things? | |
4178 | * Or, is this run before we check arguments and set suidscript? | |
4179 | * What about SETUID_SCRIPTS_ARE_SECURE_NOW: could we use fdscript then? | |
4180 | * (We never have suidscript, can we be sure to have fdscript?) | |
4181 | * Or must then go by UID checks? See comments in forbid_setid also. | |
4182 | */ | |
748a9306 | 4183 | } |
79072805 | 4184 | |
a0643315 JH |
4185 | /* This is used very early in the lifetime of the program, |
4186 | * before even the options are parsed, so PL_tainting has | |
b0891165 | 4187 | * not been initialized properly. */ |
af419de7 | 4188 | bool |
8f42b153 | 4189 | Perl_doing_taint(int argc, char *argv[], char *envp[]) |
22f7c9c9 | 4190 | { |
c3446a78 JH |
4191 | #ifndef PERL_IMPLICIT_SYS |
4192 | /* If we have PERL_IMPLICIT_SYS we can't call getuid() et alia | |
4193 | * before we have an interpreter-- and the whole point of this | |
4194 | * function is to be called at such an early stage. If you are on | |
4195 | * a system with PERL_IMPLICIT_SYS but you do have a concept of | |
4196 | * "tainted because running with altered effective ids', you'll | |
4197 | * have to add your own checks somewhere in here. The two most | |
4198 | * known samples of 'implicitness' are Win32 and NetWare, neither | |
4199 | * of which has much of concept of 'uids'. */ | |
af419de7 | 4200 | int uid = PerlProc_getuid(); |
22f7c9c9 | 4201 | int euid = PerlProc_geteuid(); |
af419de7 | 4202 | int gid = PerlProc_getgid(); |
22f7c9c9 | 4203 | int egid = PerlProc_getegid(); |
6867be6d | 4204 | (void)envp; |
22f7c9c9 JH |
4205 | |
4206 | #ifdef VMS | |
af419de7 | 4207 | uid |= gid << 16; |
22f7c9c9 JH |
4208 | euid |= egid << 16; |
4209 | #endif | |
4210 | if (uid && (euid != uid || egid != gid)) | |
4211 | return 1; | |
c3446a78 | 4212 | #endif /* !PERL_IMPLICIT_SYS */ |
af419de7 JH |
4213 | /* This is a really primitive check; environment gets ignored only |
4214 | * if -T are the first chars together; otherwise one gets | |
4215 | * "Too late" message. */ | |
22f7c9c9 JH |
4216 | if ( argc > 1 && argv[1][0] == '-' |
4217 | && (argv[1][1] == 't' || argv[1][1] == 'T') ) | |
4218 | return 1; | |
4219 | return 0; | |
4220 | } | |
22f7c9c9 | 4221 | |
76e3520e | 4222 | STATIC void |
e1ec3a88 | 4223 | S_forbid_setid(pTHX_ const char *s) |
bbce6d69 | 4224 | { |
ae3f3efd | 4225 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
3280af22 | 4226 | if (PL_euid != PL_uid) |
cea2e8a9 | 4227 | Perl_croak(aTHX_ "No %s allowed while running setuid", s); |
3280af22 | 4228 | if (PL_egid != PL_gid) |
cea2e8a9 | 4229 | Perl_croak(aTHX_ "No %s allowed while running setgid", s); |
ae3f3efd PS |
4230 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ |
4231 | /* PSz 29 Feb 04 | |
4232 | * Checks for UID/GID above "wrong": why disallow | |
4233 | * perl -e 'print "Hello\n"' | |
4234 | * from within setuid things?? Simply drop them: replaced by | |
4235 | * fdscript/suidscript and #ifdef IAMSUID checks below. | |
4236 | * | |
4237 | * This may be too late for command-line switches. Will catch those on | |
4238 | * the #! line, after finding the script name and setting up | |
4239 | * fdscript/suidscript. Note that suidperl does not get around to | |
4240 | * parsing (and checking) the switches on the #! line, but checks that | |
4241 | * the two sets are identical. | |
4242 | * | |
4243 | * With SETUID_SCRIPTS_ARE_SECURE_NOW, could we use fdscript, also or | |
4244 | * instead, or would that be "too late"? (We never have suidscript, can | |
4245 | * we be sure to have fdscript?) | |
4246 | * | |
4247 | * Catch things with suidscript (in descendant of suidperl), even with | |
4248 | * right UID/GID. Was already checked in suidperl, with #ifdef IAMSUID, | |
4249 | * below; but I am paranoid. | |
4250 | * | |
4251 | * Also see comments about root running a setuid script, elsewhere. | |
4252 | */ | |
4253 | if (PL_suidscript >= 0) | |
4254 | Perl_croak(aTHX_ "No %s allowed with (suid) fdscript", s); | |
4255 | #ifdef IAMSUID | |
4256 | /* PSz 11 Nov 03 Catch it in suidperl, always! */ | |
4257 | Perl_croak(aTHX_ "No %s allowed in suidperl", s); | |
4258 | #endif /* IAMSUID */ | |
bbce6d69 | 4259 | } |
4260 | ||
1ee4443e IZ |
4261 | void |
4262 | Perl_init_debugger(pTHX) | |
748a9306 | 4263 | { |
1ee4443e IZ |
4264 | HV *ostash = PL_curstash; |
4265 | ||
3280af22 | 4266 | PL_curstash = PL_debstash; |
7619c85e | 4267 | PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("DB::args", GV_ADDMULTI, SVt_PVAV)))); |
3280af22 | 4268 | AvREAL_off(PL_dbargs); |
7619c85e RG |
4269 | PL_DBgv = gv_fetchpv("DB::DB", GV_ADDMULTI, SVt_PVGV); |
4270 | PL_DBline = gv_fetchpv("DB::dbline", GV_ADDMULTI, SVt_PVAV); | |
4271 | PL_DBsub = gv_HVadd(gv_fetchpv("DB::sub", GV_ADDMULTI, SVt_PVHV)); | |
7619c85e | 4272 | PL_DBsingle = GvSV((gv_fetchpv("DB::single", GV_ADDMULTI, SVt_PV))); |
ac27b0f5 | 4273 | sv_setiv(PL_DBsingle, 0); |
7619c85e | 4274 | PL_DBtrace = GvSV((gv_fetchpv("DB::trace", GV_ADDMULTI, SVt_PV))); |
ac27b0f5 | 4275 | sv_setiv(PL_DBtrace, 0); |
7619c85e | 4276 | PL_DBsignal = GvSV((gv_fetchpv("DB::signal", GV_ADDMULTI, SVt_PV))); |
ac27b0f5 | 4277 | sv_setiv(PL_DBsignal, 0); |
bf9cdc68 | 4278 | PL_DBassertion = GvSV((gv_fetchpv("DB::assertion", GV_ADDMULTI, SVt_PV))); |
06492da6 | 4279 | sv_setiv(PL_DBassertion, 0); |
1ee4443e | 4280 | PL_curstash = ostash; |
352d5a3a LW |
4281 | } |
4282 | ||
2ce36478 SM |
4283 | #ifndef STRESS_REALLOC |
4284 | #define REASONABLE(size) (size) | |
4285 | #else | |
4286 | #define REASONABLE(size) (1) /* unreasonable */ | |
4287 | #endif | |
4288 | ||
11343788 | 4289 | void |
cea2e8a9 | 4290 | Perl_init_stacks(pTHX) |
79072805 | 4291 | { |
e336de0d | 4292 | /* start with 128-item stack and 8K cxstack */ |
3280af22 | 4293 | PL_curstackinfo = new_stackinfo(REASONABLE(128), |
e336de0d | 4294 | REASONABLE(8192/sizeof(PERL_CONTEXT) - 1)); |
3280af22 NIS |
4295 | PL_curstackinfo->si_type = PERLSI_MAIN; |
4296 | PL_curstack = PL_curstackinfo->si_stack; | |
4297 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ | |
79072805 | 4298 | |
3280af22 NIS |
4299 | PL_stack_base = AvARRAY(PL_curstack); |
4300 | PL_stack_sp = PL_stack_base; | |
4301 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
8990e307 | 4302 | |
3280af22 NIS |
4303 | New(50,PL_tmps_stack,REASONABLE(128),SV*); |
4304 | PL_tmps_floor = -1; | |
4305 | PL_tmps_ix = -1; | |
4306 | PL_tmps_max = REASONABLE(128); | |
8990e307 | 4307 | |
3280af22 NIS |
4308 | New(54,PL_markstack,REASONABLE(32),I32); |
4309 | PL_markstack_ptr = PL_markstack; | |
4310 | PL_markstack_max = PL_markstack + REASONABLE(32); | |
79072805 | 4311 | |
ce2f7c3b | 4312 | SET_MARK_OFFSET; |
e336de0d | 4313 | |
3280af22 NIS |
4314 | New(54,PL_scopestack,REASONABLE(32),I32); |
4315 | PL_scopestack_ix = 0; | |
4316 | PL_scopestack_max = REASONABLE(32); | |
79072805 | 4317 | |
3280af22 NIS |
4318 | New(54,PL_savestack,REASONABLE(128),ANY); |
4319 | PL_savestack_ix = 0; | |
4320 | PL_savestack_max = REASONABLE(128); | |
378cc40b | 4321 | } |
33b78306 | 4322 | |
2ce36478 SM |
4323 | #undef REASONABLE |
4324 | ||
76e3520e | 4325 | STATIC void |
cea2e8a9 | 4326 | S_nuke_stacks(pTHX) |
6e72f9df | 4327 | { |
3280af22 NIS |
4328 | while (PL_curstackinfo->si_next) |
4329 | PL_curstackinfo = PL_curstackinfo->si_next; | |
4330 | while (PL_curstackinfo) { | |
4331 | PERL_SI *p = PL_curstackinfo->si_prev; | |
bac4b2ad | 4332 | /* curstackinfo->si_stack got nuked by sv_free_arenas() */ |
3280af22 NIS |
4333 | Safefree(PL_curstackinfo->si_cxstack); |
4334 | Safefree(PL_curstackinfo); | |
4335 | PL_curstackinfo = p; | |
e336de0d | 4336 | } |
3280af22 NIS |
4337 | Safefree(PL_tmps_stack); |
4338 | Safefree(PL_markstack); | |
4339 | Safefree(PL_scopestack); | |
4340 | Safefree(PL_savestack); | |
378cc40b | 4341 | } |
33b78306 | 4342 | |
76e3520e | 4343 | STATIC void |
cea2e8a9 | 4344 | S_init_lexer(pTHX) |
8990e307 | 4345 | { |
06039172 | 4346 | PerlIO *tmpfp; |
3280af22 NIS |
4347 | tmpfp = PL_rsfp; |
4348 | PL_rsfp = Nullfp; | |
4349 | lex_start(PL_linestr); | |
4350 | PL_rsfp = tmpfp; | |
79cb57f6 | 4351 | PL_subname = newSVpvn("main",4); |
8990e307 LW |
4352 | } |
4353 | ||
76e3520e | 4354 | STATIC void |
cea2e8a9 | 4355 | S_init_predump_symbols(pTHX) |
45d8adaa | 4356 | { |
93a17b20 | 4357 | GV *tmpgv; |
af8c498a | 4358 | IO *io; |
79072805 | 4359 | |
864dbfa3 | 4360 | sv_setpvn(get_sv("\"", TRUE), " ", 1); |
3280af22 NIS |
4361 | PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
4362 | GvMULTI_on(PL_stdingv); | |
af8c498a | 4363 | io = GvIOp(PL_stdingv); |
a04651f4 | 4364 | IoTYPE(io) = IoTYPE_RDONLY; |
af8c498a | 4365 | IoIFP(io) = PerlIO_stdin(); |
adbc6bb1 | 4366 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 | 4367 | GvMULTI_on(tmpgv); |
af8c498a | 4368 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io); |
79072805 | 4369 | |
85e6fe83 | 4370 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 | 4371 | GvMULTI_on(tmpgv); |
af8c498a | 4372 | io = GvIOp(tmpgv); |
a04651f4 | 4373 | IoTYPE(io) = IoTYPE_WRONLY; |
af8c498a | 4374 | IoOFP(io) = IoIFP(io) = PerlIO_stdout(); |
4633a7c4 | 4375 | setdefout(tmpgv); |
adbc6bb1 | 4376 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 | 4377 | GvMULTI_on(tmpgv); |
af8c498a | 4378 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io); |
79072805 | 4379 | |
bf49b057 GS |
4380 | PL_stderrgv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
4381 | GvMULTI_on(PL_stderrgv); | |
4382 | io = GvIOp(PL_stderrgv); | |
a04651f4 | 4383 | IoTYPE(io) = IoTYPE_WRONLY; |
af8c498a | 4384 | IoOFP(io) = IoIFP(io) = PerlIO_stderr(); |
adbc6bb1 | 4385 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 | 4386 | GvMULTI_on(tmpgv); |
af8c498a | 4387 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io); |
79072805 | 4388 | |
3280af22 | 4389 | PL_statname = NEWSV(66,0); /* last filename we did stat on */ |
ab821d7f | 4390 | |
bf4acbe4 GS |
4391 | if (PL_osname) |
4392 | Safefree(PL_osname); | |
4393 | PL_osname = savepv(OSNAME); | |
79072805 | 4394 | } |
33b78306 | 4395 | |
a11ec5a9 | 4396 | void |
8f42b153 | 4397 | Perl_init_argv_symbols(pTHX_ register int argc, register char **argv) |
33b78306 | 4398 | { |
79072805 | 4399 | char *s; |
79072805 | 4400 | argc--,argv++; /* skip name of script */ |
3280af22 | 4401 | if (PL_doswitches) { |
79072805 LW |
4402 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
4403 | if (!argv[0][1]) | |
4404 | break; | |
379d538a | 4405 | if (argv[0][1] == '-' && !argv[0][2]) { |
79072805 LW |
4406 | argc--,argv++; |
4407 | break; | |
4408 | } | |
155aba94 | 4409 | if ((s = strchr(argv[0], '='))) { |
79072805 | 4410 | *s++ = '\0'; |
85e6fe83 | 4411 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 LW |
4412 | } |
4413 | else | |
85e6fe83 | 4414 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 | 4415 | } |
79072805 | 4416 | } |
a11ec5a9 RGS |
4417 | if ((PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV))) { |
4418 | GvMULTI_on(PL_argvgv); | |
4419 | (void)gv_AVadd(PL_argvgv); | |
4420 | av_clear(GvAVn(PL_argvgv)); | |
4421 | for (; argc > 0; argc--,argv++) { | |
4422 | SV *sv = newSVpv(argv[0],0); | |
4423 | av_push(GvAVn(PL_argvgv),sv); | |
ce81ff12 JH |
4424 | if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) { |
4425 | if (PL_unicode & PERL_UNICODE_ARGV_FLAG) | |
4426 | SvUTF8_on(sv); | |
4427 | } | |
a05d7ebb JH |
4428 | if (PL_unicode & PERL_UNICODE_WIDESYSCALLS_FLAG) /* Sarathy? */ |
4429 | (void)sv_utf8_decode(sv); | |
a11ec5a9 RGS |
4430 | } |
4431 | } | |
4432 | } | |
4433 | ||
4434 | STATIC void | |
4435 | S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env) | |
4436 | { | |
27da23d5 | 4437 | dVAR; |
a11ec5a9 | 4438 | GV* tmpgv; |
a11ec5a9 | 4439 | |
3280af22 NIS |
4440 | PL_toptarget = NEWSV(0,0); |
4441 | sv_upgrade(PL_toptarget, SVt_PVFM); | |
4442 | sv_setpvn(PL_toptarget, "", 0); | |
4443 | PL_bodytarget = NEWSV(0,0); | |
4444 | sv_upgrade(PL_bodytarget, SVt_PVFM); | |
4445 | sv_setpvn(PL_bodytarget, "", 0); | |
4446 | PL_formtarget = PL_bodytarget; | |
79072805 | 4447 | |
bbce6d69 | 4448 | TAINT; |
a11ec5a9 RGS |
4449 | |
4450 | init_argv_symbols(argc,argv); | |
4451 | ||
155aba94 | 4452 | if ((tmpgv = gv_fetchpv("0",TRUE, SVt_PV))) { |
bf4acbe4 GS |
4453 | #ifdef MACOS_TRADITIONAL |
4454 | /* $0 is not majick on a Mac */ | |
4455 | sv_setpv(GvSV(tmpgv),MacPerl_MPWFileName(PL_origfilename)); | |
4456 | #else | |
3280af22 | 4457 | sv_setpv(GvSV(tmpgv),PL_origfilename); |
79072805 | 4458 | magicname("0", "0", 1); |
bf4acbe4 | 4459 | #endif |
79072805 | 4460 | } |
155aba94 | 4461 | if ((PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV))) { |
79072805 | 4462 | HV *hv; |
3280af22 NIS |
4463 | GvMULTI_on(PL_envgv); |
4464 | hv = GvHVn(PL_envgv); | |
14befaf4 | 4465 | hv_magic(hv, Nullgv, PERL_MAGIC_env); |
2f42fcb0 | 4466 | #ifndef PERL_MICRO |
fa6a1c44 | 4467 | #ifdef USE_ENVIRON_ARRAY |
4633a7c4 LW |
4468 | /* Note that if the supplied env parameter is actually a copy |
4469 | of the global environ then it may now point to free'd memory | |
4470 | if the environment has been modified since. To avoid this | |
4471 | problem we treat env==NULL as meaning 'use the default' | |
4472 | */ | |
4473 | if (!env) | |
4474 | env = environ; | |
4efc5df6 GS |
4475 | if (env != environ |
4476 | # ifdef USE_ITHREADS | |
4477 | && PL_curinterp == aTHX | |
4478 | # endif | |
4479 | ) | |
4480 | { | |
79072805 | 4481 | environ[0] = Nullch; |
4efc5df6 | 4482 | } |
9b4eeda5 MB |
4483 | if (env) { |
4484 | char** origenv = environ; | |
27da23d5 JH |
4485 | char *s; |
4486 | SV *sv; | |
764df951 | 4487 | for (; *env; env++) { |
9b4eeda5 | 4488 | if (!(s = strchr(*env,'=')) || s == *env) |
79072805 | 4489 | continue; |
7da0e383 | 4490 | #if defined(MSDOS) && !defined(DJGPP) |
61968511 | 4491 | *s = '\0'; |
137443ea | 4492 | (void)strupr(*env); |
61968511 | 4493 | *s = '='; |
137443ea | 4494 | #endif |
61968511 | 4495 | sv = newSVpv(s+1, 0); |
79072805 | 4496 | (void)hv_store(hv, *env, s - *env, sv, 0); |
61968511 GA |
4497 | if (env != environ) |
4498 | mg_set(sv); | |
9b4eeda5 MB |
4499 | if (origenv != environ) { |
4500 | /* realloc has shifted us */ | |
4501 | env = (env - origenv) + environ; | |
4502 | origenv = environ; | |
4503 | } | |
764df951 | 4504 | } |
9b4eeda5 | 4505 | } |
103a7189 | 4506 | #endif /* USE_ENVIRON_ARRAY */ |
2f42fcb0 | 4507 | #endif /* !PERL_MICRO */ |
79072805 | 4508 | } |
bbce6d69 | 4509 | TAINT_NOT; |
306196c3 MS |
4510 | if ((tmpgv = gv_fetchpv("$",TRUE, SVt_PV))) { |
4511 | SvREADONLY_off(GvSV(tmpgv)); | |
7766f137 | 4512 | sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid()); |
306196c3 MS |
4513 | SvREADONLY_on(GvSV(tmpgv)); |
4514 | } | |
4d76a344 RGS |
4515 | #ifdef THREADS_HAVE_PIDS |
4516 | PL_ppid = (IV)getppid(); | |
4517 | #endif | |
2710853f MJD |
4518 | |
4519 | /* touch @F array to prevent spurious warnings 20020415 MJD */ | |
4520 | if (PL_minus_a) { | |
4521 | (void) get_av("main::F", TRUE | GV_ADDMULTI); | |
4522 | } | |
4523 | /* touch @- and @+ arrays to prevent spurious warnings 20020415 MJD */ | |
4524 | (void) get_av("main::-", TRUE | GV_ADDMULTI); | |
4525 | (void) get_av("main::+", TRUE | GV_ADDMULTI); | |
33b78306 | 4526 | } |
34de22dd | 4527 | |
76e3520e | 4528 | STATIC void |
cea2e8a9 | 4529 | S_init_perllib(pTHX) |
34de22dd | 4530 | { |
85e6fe83 | 4531 | char *s; |
3280af22 | 4532 | if (!PL_tainting) { |
552a7a9b | 4533 | #ifndef VMS |
76e3520e | 4534 | s = PerlEnv_getenv("PERL5LIB"); |
85e6fe83 | 4535 | if (s) |
88fe16b2 | 4536 | incpush(s, TRUE, TRUE, TRUE, FALSE); |
85e6fe83 | 4537 | else |
88fe16b2 | 4538 | incpush(PerlEnv_getenv("PERLLIB"), FALSE, FALSE, TRUE, FALSE); |
552a7a9b | 4539 | #else /* VMS */ |
4540 | /* Treat PERL5?LIB as a possible search list logical name -- the | |
4541 | * "natural" VMS idiom for a Unix path string. We allow each | |
4542 | * element to be a set of |-separated directories for compatibility. | |
4543 | */ | |
4544 | char buf[256]; | |
4545 | int idx = 0; | |
4546 | if (my_trnlnm("PERL5LIB",buf,0)) | |
88fe16b2 | 4547 | do { incpush(buf,TRUE,TRUE,TRUE,FALSE); } while (my_trnlnm("PERL5LIB",buf,++idx)); |
552a7a9b | 4548 | else |
88fe16b2 | 4549 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE,FALSE,TRUE,FALSE); |
552a7a9b | 4550 | #endif /* VMS */ |
85e6fe83 | 4551 | } |
34de22dd | 4552 | |
c90c0ff4 | 4553 | /* Use the ~-expanded versions of APPLLIB (undocumented), |
65f19062 | 4554 | ARCHLIB PRIVLIB SITEARCH SITELIB VENDORARCH and VENDORLIB |
df5cef82 | 4555 | */ |
4633a7c4 | 4556 | #ifdef APPLLIB_EXP |
88fe16b2 | 4557 | incpush(APPLLIB_EXP, TRUE, TRUE, TRUE, TRUE); |
16d20bd9 | 4558 | #endif |
4633a7c4 | 4559 | |
fed7345c | 4560 | #ifdef ARCHLIB_EXP |
88fe16b2 | 4561 | incpush(ARCHLIB_EXP, FALSE, FALSE, TRUE, TRUE); |
a0d0e21e | 4562 | #endif |
bf4acbe4 GS |
4563 | #ifdef MACOS_TRADITIONAL |
4564 | { | |
c623ac67 | 4565 | Stat_t tmpstatbuf; |
bf4acbe4 GS |
4566 | SV * privdir = NEWSV(55, 0); |
4567 | char * macperl = PerlEnv_getenv("MACPERL"); | |
4568 | ||
4569 | if (!macperl) | |
4570 | macperl = ""; | |
4571 | ||
4572 | Perl_sv_setpvf(aTHX_ privdir, "%slib:", macperl); | |
4573 | if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode)) | |
88fe16b2 | 4574 | incpush(SvPVX(privdir), TRUE, FALSE, TRUE, FALSE); |
bf4acbe4 GS |
4575 | Perl_sv_setpvf(aTHX_ privdir, "%ssite_perl:", macperl); |
4576 | if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode)) | |
88fe16b2 | 4577 | incpush(SvPVX(privdir), TRUE, FALSE, TRUE, FALSE); |
ac27b0f5 | 4578 | |
bf4acbe4 GS |
4579 | SvREFCNT_dec(privdir); |
4580 | } | |
4581 | if (!PL_tainting) | |
88fe16b2 | 4582 | incpush(":", FALSE, FALSE, TRUE, FALSE); |
bf4acbe4 | 4583 | #else |
fed7345c | 4584 | #ifndef PRIVLIB_EXP |
65f19062 | 4585 | # define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" |
34de22dd | 4586 | #endif |
ac27b0f5 | 4587 | #if defined(WIN32) |
88fe16b2 | 4588 | incpush(PRIVLIB_EXP, TRUE, FALSE, TRUE, TRUE); |
00dc2f4f | 4589 | #else |
88fe16b2 | 4590 | incpush(PRIVLIB_EXP, FALSE, FALSE, TRUE, TRUE); |
00dc2f4f | 4591 | #endif |
4633a7c4 | 4592 | |
65f19062 | 4593 | #ifdef SITEARCH_EXP |
3b290362 GS |
4594 | /* sitearch is always relative to sitelib on Windows for |
4595 | * DLL-based path intuition to work correctly */ | |
4596 | # if !defined(WIN32) | |
88fe16b2 | 4597 | incpush(SITEARCH_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 GS |
4598 | # endif |
4599 | #endif | |
4600 | ||
4633a7c4 | 4601 | #ifdef SITELIB_EXP |
65f19062 | 4602 | # if defined(WIN32) |
574c798a | 4603 | /* this picks up sitearch as well */ |
88fe16b2 | 4604 | incpush(SITELIB_EXP, TRUE, FALSE, TRUE, TRUE); |
65f19062 | 4605 | # else |
88fe16b2 | 4606 | incpush(SITELIB_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 GS |
4607 | # endif |
4608 | #endif | |
189d1e8d | 4609 | |
65f19062 | 4610 | #ifdef SITELIB_STEM /* Search for version-specific dirs below here */ |
88fe16b2 | 4611 | incpush(SITELIB_STEM, FALSE, TRUE, TRUE, TRUE); |
81c6dfba | 4612 | #endif |
65f19062 GS |
4613 | |
4614 | #ifdef PERL_VENDORARCH_EXP | |
4ea817c6 | 4615 | /* vendorarch is always relative to vendorlib on Windows for |
3b290362 GS |
4616 | * DLL-based path intuition to work correctly */ |
4617 | # if !defined(WIN32) | |
88fe16b2 | 4618 | incpush(PERL_VENDORARCH_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 | 4619 | # endif |
4b03c463 | 4620 | #endif |
65f19062 GS |
4621 | |
4622 | #ifdef PERL_VENDORLIB_EXP | |
4623 | # if defined(WIN32) | |
88fe16b2 | 4624 | incpush(PERL_VENDORLIB_EXP, TRUE, FALSE, TRUE, TRUE); /* this picks up vendorarch as well */ |
65f19062 | 4625 | # else |
88fe16b2 | 4626 | incpush(PERL_VENDORLIB_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 | 4627 | # endif |
a3635516 | 4628 | #endif |
65f19062 GS |
4629 | |
4630 | #ifdef PERL_VENDORLIB_STEM /* Search for version-specific dirs below here */ | |
88fe16b2 | 4631 | incpush(PERL_VENDORLIB_STEM, FALSE, TRUE, TRUE, TRUE); |
00dc2f4f | 4632 | #endif |
65f19062 | 4633 | |
3b777bb4 | 4634 | #ifdef PERL_OTHERLIBDIRS |
88fe16b2 | 4635 | incpush(PERL_OTHERLIBDIRS, TRUE, TRUE, TRUE, TRUE); |
3b777bb4 GS |
4636 | #endif |
4637 | ||
3280af22 | 4638 | if (!PL_tainting) |
88fe16b2 | 4639 | incpush(".", FALSE, FALSE, TRUE, FALSE); |
bf4acbe4 | 4640 | #endif /* MACOS_TRADITIONAL */ |
774d564b | 4641 | } |
4642 | ||
27da23d5 | 4643 | #if defined(DOSISH) || defined(EPOC) || defined(SYMBIAN) |
774d564b | 4644 | # define PERLLIB_SEP ';' |
4645 | #else | |
4646 | # if defined(VMS) | |
4647 | # define PERLLIB_SEP '|' | |
4648 | # else | |
bf4acbe4 GS |
4649 | # if defined(MACOS_TRADITIONAL) |
4650 | # define PERLLIB_SEP ',' | |
4651 | # else | |
4652 | # define PERLLIB_SEP ':' | |
4653 | # endif | |
774d564b | 4654 | # endif |
4655 | #endif | |
4656 | #ifndef PERLLIB_MANGLE | |
4657 | # define PERLLIB_MANGLE(s,n) (s) | |
ac27b0f5 | 4658 | #endif |
774d564b | 4659 | |
ad17a1ae NC |
4660 | /* Push a directory onto @INC if it exists. |
4661 | Generate a new SV if we do this, to save needing to copy the SV we push | |
4662 | onto @INC */ | |
4663 | STATIC SV * | |
4664 | S_incpush_if_exists(pTHX_ SV *dir) | |
4665 | { | |
4666 | Stat_t tmpstatbuf; | |
848ef955 | 4667 | if (PerlLIO_stat(SvPVX_const(dir), &tmpstatbuf) >= 0 && |
ad17a1ae NC |
4668 | S_ISDIR(tmpstatbuf.st_mode)) { |
4669 | av_push(GvAVn(PL_incgv), dir); | |
4670 | dir = NEWSV(0,0); | |
4671 | } | |
4672 | return dir; | |
4673 | } | |
4674 | ||
76e3520e | 4675 | STATIC void |
dd374669 AL |
4676 | S_incpush(pTHX_ const char *dir, bool addsubdirs, bool addoldvers, bool usesep, |
4677 | bool canrelocate) | |
774d564b | 4678 | { |
4679 | SV *subdir = Nullsv; | |
dd374669 | 4680 | const char *p = dir; |
774d564b | 4681 | |
3b290362 | 4682 | if (!p || !*p) |
774d564b | 4683 | return; |
4684 | ||
9c8a64f0 | 4685 | if (addsubdirs || addoldvers) { |
ad17a1ae | 4686 | subdir = NEWSV(0,0); |
774d564b | 4687 | } |
4688 | ||
4689 | /* Break at all separators */ | |
4690 | while (p && *p) { | |
8c52afec | 4691 | SV *libdir = NEWSV(55,0); |
e1ec3a88 | 4692 | const char *s; |
774d564b | 4693 | |
4694 | /* skip any consecutive separators */ | |
574c798a SR |
4695 | if (usesep) { |
4696 | while ( *p == PERLLIB_SEP ) { | |
4697 | /* Uncomment the next line for PATH semantics */ | |
4698 | /* av_push(GvAVn(PL_incgv), newSVpvn(".", 1)); */ | |
4699 | p++; | |
4700 | } | |
774d564b | 4701 | } |
4702 | ||
574c798a | 4703 | if ( usesep && (s = strchr(p, PERLLIB_SEP)) != Nullch ) { |
774d564b | 4704 | sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)), |
4705 | (STRLEN)(s - p)); | |
4706 | p = s + 1; | |
4707 | } | |
4708 | else { | |
4709 | sv_setpv(libdir, PERLLIB_MANGLE(p, 0)); | |
4710 | p = Nullch; /* break out */ | |
4711 | } | |
bf4acbe4 | 4712 | #ifdef MACOS_TRADITIONAL |
e69a2255 JH |
4713 | if (!strchr(SvPVX(libdir), ':')) { |
4714 | char buf[256]; | |
4715 | ||
4716 | sv_setpv(libdir, MacPerl_CanonDir(SvPVX(libdir), buf, 0)); | |
4717 | } | |
bf4acbe4 GS |
4718 | if (SvPVX(libdir)[SvCUR(libdir)-1] != ':') |
4719 | sv_catpv(libdir, ":"); | |
4720 | #endif | |
774d564b | 4721 | |
dd374669 AL |
4722 | /* Do the if() outside the #ifdef to avoid warnings about an unused |
4723 | parameter. */ | |
4724 | if (canrelocate) { | |
88fe16b2 NC |
4725 | #ifdef PERL_RELOCATABLE_INC |
4726 | /* | |
4727 | * Relocatable include entries are marked with a leading .../ | |
4728 | * | |
4729 | * The algorithm is | |
4730 | * 0: Remove that leading ".../" | |
4731 | * 1: Remove trailing executable name (anything after the last '/') | |
4732 | * from the perl path to give a perl prefix | |
4733 | * Then | |
4734 | * While the @INC element starts "../" and the prefix ends with a real | |
4735 | * directory (ie not . or ..) chop that real directory off the prefix | |
4736 | * and the leading "../" from the @INC element. ie a logical "../" | |
4737 | * cleanup | |
4738 | * Finally concatenate the prefix and the remainder of the @INC element | |
4739 | * The intent is that /usr/local/bin/perl and .../../lib/perl5 | |
4740 | * generates /usr/local/lib/perl5 | |
4741 | */ | |
88fe16b2 NC |
4742 | char *libpath = SvPVX(libdir); |
4743 | STRLEN libpath_len = SvCUR(libdir); | |
4744 | if (libpath_len >= 4 && memEQ (libpath, ".../", 4)) { | |
4745 | /* Game on! */ | |
4746 | SV *caret_X = get_sv("\030", 0); | |
4747 | /* Going to use the SV just as a scratch buffer holding a C | |
4748 | string: */ | |
4749 | SV *prefix_sv; | |
4750 | char *prefix; | |
4751 | char *lastslash; | |
4752 | ||
4753 | /* $^X is *the* source of taint if tainting is on, hence | |
4754 | SvPOK() won't be true. */ | |
4755 | assert(caret_X); | |
4756 | assert(SvPOKp(caret_X)); | |
4757 | prefix_sv = newSVpvn(SvPVX(caret_X), SvCUR(caret_X)); | |
4758 | /* Firstly take off the leading .../ | |
4759 | If all else fail we'll do the paths relative to the current | |
4760 | directory. */ | |
4761 | sv_chop(libdir, libpath + 4); | |
4762 | /* Don't use SvPV as we're intentionally bypassing taining, | |
4763 | mortal copies that the mg_get of tainting creates, and | |
4764 | corruption that seems to come via the save stack. | |
4765 | I guess that the save stack isn't correctly set up yet. */ | |
4766 | libpath = SvPVX(libdir); | |
4767 | libpath_len = SvCUR(libdir); | |
4768 | ||
4769 | /* This would work more efficiently with memrchr, but as it's | |
4770 | only a GNU extension we'd need to probe for it and | |
4771 | implement our own. Not hard, but maybe not worth it? */ | |
4772 | ||
4773 | prefix = SvPVX(prefix_sv); | |
4774 | lastslash = strrchr(prefix, '/'); | |
4775 | ||
4776 | /* First time in with the *lastslash = '\0' we just wipe off | |
4777 | the trailing /perl from (say) /usr/foo/bin/perl | |
4778 | */ | |
4779 | if (lastslash) { | |
4780 | SV *tempsv; | |
4781 | while ((*lastslash = '\0'), /* Do that, come what may. */ | |
4782 | (libpath_len >= 3 && memEQ(libpath, "../", 3) | |
4783 | && (lastslash = strrchr(prefix, '/')))) { | |
4784 | if (lastslash[1] == '\0' | |
4785 | || (lastslash[1] == '.' | |
4786 | && (lastslash[2] == '/' /* ends "/." */ | |
4787 | || (lastslash[2] == '/' | |
4788 | && lastslash[3] == '/' /* or "/.." */ | |
4789 | )))) { | |
4790 | /* Prefix ends "/" or "/." or "/..", any of which | |
4791 | are fishy, so don't do any more logical cleanup. | |
4792 | */ | |
4793 | break; | |
4794 | } | |
4795 | /* Remove leading "../" from path */ | |
4796 | libpath += 3; | |
4797 | libpath_len -= 3; | |
4798 | /* Next iteration round the loop removes the last | |
4799 | directory name from prefix by writing a '\0' in | |
4800 | the while clause. */ | |
4801 | } | |
4802 | /* prefix has been terminated with a '\0' to the correct | |
4803 | length. libpath points somewhere into the libdir SV. | |
4804 | We need to join the 2 with '/' and drop the result into | |
4805 | libdir. */ | |
4806 | tempsv = Perl_newSVpvf(aTHX_ "%s/%s", prefix, libpath); | |
4807 | SvREFCNT_dec(libdir); | |
4808 | /* And this is the new libdir. */ | |
4809 | libdir = tempsv; | |
4810 | if (PL_tainting && | |
4811 | (PL_uid != PL_euid || PL_gid != PL_egid)) { | |
4812 | /* Need to taint reloccated paths if running set ID */ | |
4813 | SvTAINTED_on(libdir); | |
4814 | } | |
4815 | } | |
4816 | SvREFCNT_dec(prefix_sv); | |
4817 | } | |
88fe16b2 | 4818 | #endif |
dd374669 | 4819 | } |
774d564b | 4820 | /* |
4821 | * BEFORE pushing libdir onto @INC we may first push version- and | |
4822 | * archname-specific sub-directories. | |
4823 | */ | |
9c8a64f0 | 4824 | if (addsubdirs || addoldvers) { |
29d82f8d | 4825 | #ifdef PERL_INC_VERSION_LIST |
8353b874 GS |
4826 | /* Configure terminates PERL_INC_VERSION_LIST with a NULL */ |
4827 | const char *incverlist[] = { PERL_INC_VERSION_LIST }; | |
29d82f8d GS |
4828 | const char **incver; |
4829 | #endif | |
aa689395 | 4830 | #ifdef VMS |
4831 | char *unix; | |
4832 | STRLEN len; | |
774d564b | 4833 | |
2d8e6c8d | 4834 | if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) { |
aa689395 | 4835 | len = strlen(unix); |
4836 | while (unix[len-1] == '/') len--; /* Cosmetic */ | |
4837 | sv_usepvn(libdir,unix,len); | |
4838 | } | |
4839 | else | |
bf49b057 | 4840 | PerlIO_printf(Perl_error_log, |
aa689395 | 4841 | "Failed to unixify @INC element \"%s\"\n", |
2d8e6c8d | 4842 | SvPV(libdir,len)); |
aa689395 | 4843 | #endif |
9c8a64f0 | 4844 | if (addsubdirs) { |
bf4acbe4 GS |
4845 | #ifdef MACOS_TRADITIONAL |
4846 | #define PERL_AV_SUFFIX_FMT "" | |
084592ab CN |
4847 | #define PERL_ARCH_FMT "%s:" |
4848 | #define PERL_ARCH_FMT_PATH PERL_FS_VER_FMT PERL_AV_SUFFIX_FMT | |
bf4acbe4 GS |
4849 | #else |
4850 | #define PERL_AV_SUFFIX_FMT "/" | |
4851 | #define PERL_ARCH_FMT "/%s" | |
084592ab | 4852 | #define PERL_ARCH_FMT_PATH PERL_AV_SUFFIX_FMT PERL_FS_VER_FMT |
bf4acbe4 | 4853 | #endif |
9c8a64f0 | 4854 | /* .../version/archname if -d .../version/archname */ |
084592ab | 4855 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH PERL_ARCH_FMT, |
9c8a64f0 GS |
4856 | libdir, |
4857 | (int)PERL_REVISION, (int)PERL_VERSION, | |
4858 | (int)PERL_SUBVERSION, ARCHNAME); | |
ad17a1ae | 4859 | subdir = S_incpush_if_exists(aTHX_ subdir); |
4b03c463 | 4860 | |
9c8a64f0 | 4861 | /* .../version if -d .../version */ |
084592ab | 4862 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH, libdir, |
9c8a64f0 GS |
4863 | (int)PERL_REVISION, (int)PERL_VERSION, |
4864 | (int)PERL_SUBVERSION); | |
ad17a1ae | 4865 | subdir = S_incpush_if_exists(aTHX_ subdir); |
9c8a64f0 GS |
4866 | |
4867 | /* .../archname if -d .../archname */ | |
bf4acbe4 | 4868 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, ARCHNAME); |
ad17a1ae NC |
4869 | subdir = S_incpush_if_exists(aTHX_ subdir); |
4870 | ||
29d82f8d | 4871 | } |
9c8a64f0 | 4872 | |
9c8a64f0 | 4873 | #ifdef PERL_INC_VERSION_LIST |
ccc2aad8 | 4874 | if (addoldvers) { |
9c8a64f0 GS |
4875 | for (incver = incverlist; *incver; incver++) { |
4876 | /* .../xxx if -d .../xxx */ | |
bf4acbe4 | 4877 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, *incver); |
ad17a1ae | 4878 | subdir = S_incpush_if_exists(aTHX_ subdir); |
9c8a64f0 GS |
4879 | } |
4880 | } | |
29d82f8d | 4881 | #endif |
774d564b | 4882 | } |
4883 | ||
4884 | /* finally push this lib directory on the end of @INC */ | |
3280af22 | 4885 | av_push(GvAVn(PL_incgv), libdir); |
774d564b | 4886 | } |
ad17a1ae | 4887 | if (subdir) { |
ef97f5b3 | 4888 | assert (SvREFCNT(subdir) == 1); |
ad17a1ae NC |
4889 | SvREFCNT_dec(subdir); |
4890 | } | |
34de22dd | 4891 | } |
93a17b20 | 4892 | |
4d1ff10f | 4893 | #ifdef USE_5005THREADS |
76e3520e | 4894 | STATIC struct perl_thread * |
cea2e8a9 | 4895 | S_init_main_thread(pTHX) |
199100c8 | 4896 | { |
c5be433b | 4897 | #if !defined(PERL_IMPLICIT_CONTEXT) |
52e1cb5e | 4898 | struct perl_thread *thr; |
cea2e8a9 | 4899 | #endif |
199100c8 MB |
4900 | XPV *xpv; |
4901 | ||
52e1cb5e | 4902 | Newz(53, thr, 1, struct perl_thread); |
533c011a | 4903 | PL_curcop = &PL_compiling; |
c5be433b | 4904 | thr->interp = PERL_GET_INTERP; |
199100c8 | 4905 | thr->cvcache = newHV(); |
54b9620d | 4906 | thr->threadsv = newAV(); |
940cb80d | 4907 | /* thr->threadsvp is set when find_threadsv is called */ |
199100c8 MB |
4908 | thr->specific = newAV(); |
4909 | thr->flags = THRf_R_JOINABLE; | |
4910 | MUTEX_INIT(&thr->mutex); | |
4911 | /* Handcraft thrsv similarly to mess_sv */ | |
533c011a | 4912 | New(53, PL_thrsv, 1, SV); |
199100c8 | 4913 | Newz(53, xpv, 1, XPV); |
533c011a NIS |
4914 | SvFLAGS(PL_thrsv) = SVt_PV; |
4915 | SvANY(PL_thrsv) = (void*)xpv; | |
4916 | SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */ | |
f880fe2f | 4917 | SvPV_set(PL_thrsvr, (char*)thr); |
533c011a NIS |
4918 | SvCUR_set(PL_thrsv, sizeof(thr)); |
4919 | SvLEN_set(PL_thrsv, sizeof(thr)); | |
4920 | *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */ | |
4921 | thr->oursv = PL_thrsv; | |
4922 | PL_chopset = " \n-"; | |
3967c732 | 4923 | PL_dumpindent = 4; |
533c011a NIS |
4924 | |
4925 | MUTEX_LOCK(&PL_threads_mutex); | |
4926 | PL_nthreads++; | |
199100c8 MB |
4927 | thr->tid = 0; |
4928 | thr->next = thr; | |
4929 | thr->prev = thr; | |
8dcd6f7b | 4930 | thr->thr_done = 0; |
533c011a | 4931 | MUTEX_UNLOCK(&PL_threads_mutex); |
199100c8 | 4932 | |
4b026b9e | 4933 | #ifdef HAVE_THREAD_INTERN |
4f63d024 | 4934 | Perl_init_thread_intern(thr); |
235db74f GS |
4935 | #endif |
4936 | ||
4937 | #ifdef SET_THREAD_SELF | |
4938 | SET_THREAD_SELF(thr); | |
199100c8 MB |
4939 | #else |
4940 | thr->self = pthread_self(); | |
235db74f | 4941 | #endif /* SET_THREAD_SELF */ |
06d86050 | 4942 | PERL_SET_THX(thr); |
199100c8 MB |
4943 | |
4944 | /* | |
411caa50 JH |
4945 | * These must come after the thread self setting |
4946 | * because sv_setpvn does SvTAINT and the taint | |
4947 | * fields thread selfness being set. | |
199100c8 | 4948 | */ |
533c011a NIS |
4949 | PL_toptarget = NEWSV(0,0); |
4950 | sv_upgrade(PL_toptarget, SVt_PVFM); | |
4951 | sv_setpvn(PL_toptarget, "", 0); | |
4952 | PL_bodytarget = NEWSV(0,0); | |
4953 | sv_upgrade(PL_bodytarget, SVt_PVFM); | |
4954 | sv_setpvn(PL_bodytarget, "", 0); | |
4955 | PL_formtarget = PL_bodytarget; | |
79cb57f6 | 4956 | thr->errsv = newSVpvn("", 0); |
78857c3c | 4957 | (void) find_threadsv("@"); /* Ensure $@ is initialised early */ |
5c0ca799 | 4958 | |
533c011a | 4959 | PL_maxscream = -1; |
a2efc822 | 4960 | PL_peepp = MEMBER_TO_FPTR(Perl_peep); |
0b94c7bb GS |
4961 | PL_regcompp = MEMBER_TO_FPTR(Perl_pregcomp); |
4962 | PL_regexecp = MEMBER_TO_FPTR(Perl_regexec_flags); | |
4963 | PL_regint_start = MEMBER_TO_FPTR(Perl_re_intuit_start); | |
4964 | PL_regint_string = MEMBER_TO_FPTR(Perl_re_intuit_string); | |
4965 | PL_regfree = MEMBER_TO_FPTR(Perl_pregfree); | |
533c011a NIS |
4966 | PL_regindent = 0; |
4967 | PL_reginterp_cnt = 0; | |
5c0ca799 | 4968 | |
199100c8 MB |
4969 | return thr; |
4970 | } | |
4d1ff10f | 4971 | #endif /* USE_5005THREADS */ |
199100c8 | 4972 | |
93a17b20 | 4973 | void |
864dbfa3 | 4974 | Perl_call_list(pTHX_ I32 oldscope, AV *paramList) |
93a17b20 | 4975 | { |
27da23d5 | 4976 | dVAR; |
971a9dd3 | 4977 | SV *atsv; |
dd374669 | 4978 | const line_t oldline = CopLINE(PL_curcop); |
312caa8e | 4979 | CV *cv; |
22921e25 | 4980 | STRLEN len; |
6224f72b | 4981 | int ret; |
db36c5a1 | 4982 | dJMPENV; |
93a17b20 | 4983 | |
e1ec3a88 | 4984 | while (av_len(paramList) >= 0) { |
312caa8e | 4985 | cv = (CV*)av_shift(paramList); |
ece599bd RGS |
4986 | if (PL_savebegin) { |
4987 | if (paramList == PL_beginav) { | |
059a8bb7 | 4988 | /* save PL_beginav for compiler */ |
ece599bd RGS |
4989 | if (! PL_beginav_save) |
4990 | PL_beginav_save = newAV(); | |
4991 | av_push(PL_beginav_save, (SV*)cv); | |
4992 | } | |
4993 | else if (paramList == PL_checkav) { | |
4994 | /* save PL_checkav for compiler */ | |
4995 | if (! PL_checkav_save) | |
4996 | PL_checkav_save = newAV(); | |
4997 | av_push(PL_checkav_save, (SV*)cv); | |
4998 | } | |
059a8bb7 JH |
4999 | } else { |
5000 | SAVEFREESV(cv); | |
5001 | } | |
14dd3ad8 | 5002 | JMPENV_PUSH(ret); |
6224f72b | 5003 | switch (ret) { |
312caa8e | 5004 | case 0: |
14dd3ad8 | 5005 | call_list_body(cv); |
971a9dd3 | 5006 | atsv = ERRSV; |
10516c54 | 5007 | (void)SvPV_const(atsv, len); |
312caa8e CS |
5008 | if (len) { |
5009 | PL_curcop = &PL_compiling; | |
57843af0 | 5010 | CopLINE_set(PL_curcop, oldline); |
312caa8e CS |
5011 | if (paramList == PL_beginav) |
5012 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); | |
5013 | else | |
4f25aa18 GS |
5014 | Perl_sv_catpvf(aTHX_ atsv, |
5015 | "%s failed--call queue aborted", | |
7d30b5c4 | 5016 | paramList == PL_checkav ? "CHECK" |
4f25aa18 GS |
5017 | : paramList == PL_initav ? "INIT" |
5018 | : "END"); | |
312caa8e CS |
5019 | while (PL_scopestack_ix > oldscope) |
5020 | LEAVE; | |
14dd3ad8 | 5021 | JMPENV_POP; |
35c1215d | 5022 | Perl_croak(aTHX_ "%"SVf"", atsv); |
a0d0e21e | 5023 | } |
85e6fe83 | 5024 | break; |
6224f72b | 5025 | case 1: |
f86702cc | 5026 | STATUS_ALL_FAILURE; |
85e6fe83 | 5027 | /* FALL THROUGH */ |
6224f72b | 5028 | case 2: |
85e6fe83 | 5029 | /* my_exit() was called */ |
3280af22 | 5030 | while (PL_scopestack_ix > oldscope) |
2ae324a7 | 5031 | LEAVE; |
84902520 | 5032 | FREETMPS; |
3280af22 | 5033 | PL_curstash = PL_defstash; |
3280af22 | 5034 | PL_curcop = &PL_compiling; |
57843af0 | 5035 | CopLINE_set(PL_curcop, oldline); |
14dd3ad8 | 5036 | JMPENV_POP; |
cc3604b1 | 5037 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) { |
3280af22 | 5038 | if (paramList == PL_beginav) |
cea2e8a9 | 5039 | Perl_croak(aTHX_ "BEGIN failed--compilation aborted"); |
85e6fe83 | 5040 | else |
4f25aa18 | 5041 | Perl_croak(aTHX_ "%s failed--call queue aborted", |
7d30b5c4 | 5042 | paramList == PL_checkav ? "CHECK" |
4f25aa18 GS |
5043 | : paramList == PL_initav ? "INIT" |
5044 | : "END"); | |
85e6fe83 | 5045 | } |
f86702cc | 5046 | my_exit_jump(); |
85e6fe83 | 5047 | /* NOTREACHED */ |
6224f72b | 5048 | case 3: |
312caa8e CS |
5049 | if (PL_restartop) { |
5050 | PL_curcop = &PL_compiling; | |
57843af0 | 5051 | CopLINE_set(PL_curcop, oldline); |
312caa8e | 5052 | JMPENV_JUMP(3); |
85e6fe83 | 5053 | } |
bf49b057 | 5054 | PerlIO_printf(Perl_error_log, "panic: restartop\n"); |
312caa8e CS |
5055 | FREETMPS; |
5056 | break; | |
8990e307 | 5057 | } |
14dd3ad8 | 5058 | JMPENV_POP; |
93a17b20 | 5059 | } |
93a17b20 | 5060 | } |
93a17b20 | 5061 | |
14dd3ad8 GS |
5062 | STATIC void * |
5063 | S_call_list_body(pTHX_ CV *cv) | |
5064 | { | |
312caa8e | 5065 | PUSHMARK(PL_stack_sp); |
864dbfa3 | 5066 | call_sv((SV*)cv, G_EVAL|G_DISCARD); |
312caa8e CS |
5067 | return NULL; |
5068 | } | |
5069 | ||
f86702cc | 5070 | void |
864dbfa3 | 5071 | Perl_my_exit(pTHX_ U32 status) |
f86702cc | 5072 | { |
8b73bbec | 5073 | DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n", |
a863c7d1 | 5074 | thr, (unsigned long) status)); |
f86702cc | 5075 | switch (status) { |
5076 | case 0: | |
5077 | STATUS_ALL_SUCCESS; | |
5078 | break; | |
5079 | case 1: | |
5080 | STATUS_ALL_FAILURE; | |
5081 | break; | |
5082 | default: | |
5083 | STATUS_NATIVE_SET(status); | |
5084 | break; | |
5085 | } | |
5086 | my_exit_jump(); | |
5087 | } | |
5088 | ||
5089 | void | |
864dbfa3 | 5090 | Perl_my_failure_exit(pTHX) |
f86702cc | 5091 | { |
5092 | #ifdef VMS | |
5093 | if (vaxc$errno & 1) { | |
4fdae800 | 5094 | if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */ |
5095 | STATUS_NATIVE_SET(44); | |
f86702cc | 5096 | } |
5097 | else { | |
69232efa | 5098 | if (!vaxc$errno) /* unlikely */ |
4fdae800 | 5099 | STATUS_NATIVE_SET(44); |
f86702cc | 5100 | else |
4fdae800 | 5101 | STATUS_NATIVE_SET(vaxc$errno); |
f86702cc | 5102 | } |
5103 | #else | |
9b599b2a | 5104 | int exitstatus; |
f86702cc | 5105 | if (errno & 255) |
e5218da5 | 5106 | STATUS_UNIX_SET(errno); |
9b599b2a | 5107 | else { |
e5218da5 | 5108 | exitstatus = STATUS_UNIX >> 8; |
9b599b2a | 5109 | if (exitstatus & 255) |
e5218da5 | 5110 | STATUS_UNIX_SET(exitstatus); |
9b599b2a | 5111 | else |
e5218da5 | 5112 | STATUS_UNIX_SET(255); |
9b599b2a | 5113 | } |
f86702cc | 5114 | #endif |
5115 | my_exit_jump(); | |
93a17b20 LW |
5116 | } |
5117 | ||
76e3520e | 5118 | STATIC void |
cea2e8a9 | 5119 | S_my_exit_jump(pTHX) |
f86702cc | 5120 | { |
27da23d5 | 5121 | dVAR; |
c09156bb | 5122 | register PERL_CONTEXT *cx; |
f86702cc | 5123 | I32 gimme; |
5124 | SV **newsp; | |
5125 | ||
3280af22 NIS |
5126 | if (PL_e_script) { |
5127 | SvREFCNT_dec(PL_e_script); | |
5128 | PL_e_script = Nullsv; | |
f86702cc | 5129 | } |
5130 | ||
3280af22 | 5131 | POPSTACK_TO(PL_mainstack); |
f86702cc | 5132 | if (cxstack_ix >= 0) { |
5133 | if (cxstack_ix > 0) | |
5134 | dounwind(0); | |
3280af22 | 5135 | POPBLOCK(cx,PL_curpm); |
f86702cc | 5136 | LEAVE; |
5137 | } | |
ff0cee69 | 5138 | |
6224f72b | 5139 | JMPENV_JUMP(2); |
f86702cc | 5140 | } |
873ef191 | 5141 | |
0cb96387 | 5142 | static I32 |
acfe0abc | 5143 | read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen) |
873ef191 | 5144 | { |
848ef955 | 5145 | const char *p, *nl; |
dd374669 AL |
5146 | (void)idx; |
5147 | (void)maxlen; | |
5148 | ||
848ef955 | 5149 | p = SvPVX_const(PL_e_script); |
873ef191 | 5150 | nl = strchr(p, '\n'); |
3280af22 | 5151 | nl = (nl) ? nl+1 : SvEND(PL_e_script); |
7dfe3f66 | 5152 | if (nl-p == 0) { |
0cb96387 | 5153 | filter_del(read_e_script); |
873ef191 | 5154 | return 0; |
7dfe3f66 | 5155 | } |
873ef191 | 5156 | sv_catpvn(buf_sv, p, nl-p); |
3280af22 | 5157 | sv_chop(PL_e_script, nl); |
873ef191 GS |
5158 | return 1; |
5159 | } | |
66610fdd RGS |
5160 | |
5161 | /* | |
5162 | * Local variables: | |
5163 | * c-indentation-style: bsd | |
5164 | * c-basic-offset: 4 | |
5165 | * indent-tabs-mode: t | |
5166 | * End: | |
5167 | * | |
37442d52 RGS |
5168 | * ex: set ts=8 sts=4 sw=4 noet: |
5169 | */ |