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; | |
9f653bb5 | 168 | /* Newx() needs interpreter, so call malloc() instead */ |
32e30700 | 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 | |
9f653bb5 | 201 | /* Newx() 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; |
9d4ba2ae | 221 | PERL_UNUSED_ARG(my_perl); |
8990e307 | 222 | #ifdef MULTIPLICITY |
54aff467 | 223 | init_interp(); |
ac27b0f5 | 224 | PL_perl_destruct_level = 1; |
54aff467 GS |
225 | #else |
226 | if (PL_perl_destruct_level > 0) | |
227 | init_interp(); | |
228 | #endif | |
33f46ff6 | 229 | /* Init the real globals (and main thread)? */ |
3280af22 | 230 | if (!PL_linestr) { |
2aea9f8a GS |
231 | PL_curcop = &PL_compiling; /* needed by ckWARN, right away */ |
232 | ||
3280af22 NIS |
233 | PL_linestr = NEWSV(65,79); |
234 | sv_upgrade(PL_linestr,SVt_PVIV); | |
79072805 | 235 | |
3280af22 | 236 | if (!SvREADONLY(&PL_sv_undef)) { |
d689ffdd JP |
237 | /* set read-only and try to insure than we wont see REFCNT==0 |
238 | very often */ | |
239 | ||
3280af22 NIS |
240 | SvREADONLY_on(&PL_sv_undef); |
241 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
79072805 | 242 | |
3280af22 | 243 | sv_setpv(&PL_sv_no,PL_No); |
0309f36e NC |
244 | /* value lookup in void context - happens to have the side effect |
245 | of caching the numeric forms. */ | |
246 | SvIV(&PL_sv_no); | |
3280af22 NIS |
247 | SvNV(&PL_sv_no); |
248 | SvREADONLY_on(&PL_sv_no); | |
249 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; | |
79072805 | 250 | |
3280af22 | 251 | sv_setpv(&PL_sv_yes,PL_Yes); |
0309f36e | 252 | SvIV(&PL_sv_yes); |
3280af22 NIS |
253 | SvNV(&PL_sv_yes); |
254 | SvREADONLY_on(&PL_sv_yes); | |
255 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; | |
7996736c MHM |
256 | |
257 | SvREADONLY_on(&PL_sv_placeholder); | |
258 | SvREFCNT(&PL_sv_placeholder) = (~(U32)0)/2; | |
6e72f9df | 259 | } |
79072805 | 260 | |
cea2e8a9 | 261 | PL_sighandlerp = Perl_sighandler; |
3280af22 | 262 | PL_pidstatus = newHV(); |
79072805 LW |
263 | } |
264 | ||
8bfdd7d9 | 265 | PL_rs = newSVpvn("\n", 1); |
dc92893f | 266 | |
cea2e8a9 | 267 | init_stacks(); |
79072805 | 268 | |
748a9306 | 269 | init_ids(); |
3280af22 | 270 | PL_lex_state = LEX_NOTPARSING; |
a5f75d66 | 271 | |
312caa8e | 272 | JMPENV_BOOTSTRAP; |
f86702cc | 273 | STATUS_ALL_SUCCESS; |
274 | ||
0672f40e | 275 | init_i18nl10n(1); |
36477c24 | 276 | SET_NUMERIC_STANDARD(); |
0b5b802d | 277 | |
ab821d7f | 278 | #if defined(LOCAL_PATCH_COUNT) |
3280af22 | 279 | PL_localpatches = local_patches; /* For possible -v */ |
ab821d7f | 280 | #endif |
281 | ||
52853b95 GS |
282 | #ifdef HAVE_INTERP_INTERN |
283 | sys_intern_init(); | |
284 | #endif | |
285 | ||
3a1ee7e8 | 286 | PerlIO_init(aTHX); /* Hook to IO system */ |
760ac839 | 287 | |
3280af22 NIS |
288 | PL_fdpid = newAV(); /* for remembering popen pids by fd */ |
289 | PL_modglobal = newHV(); /* pointers to per-interpreter module globals */ | |
24944567 | 290 | PL_errors = newSVpvn("",0); |
48c6b404 | 291 | sv_setpvn(PERL_DEBUG_PAD(0), "", 0); /* For regex debugging. */ |
1f483ca1 JH |
292 | sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */ |
293 | sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */ | |
1fcf4c12 | 294 | #ifdef USE_ITHREADS |
13137afc AB |
295 | PL_regex_padav = newAV(); |
296 | av_push(PL_regex_padav,(SV*)newAV()); /* First entry is an array of empty elements */ | |
297 | PL_regex_pad = AvARRAY(PL_regex_padav); | |
1fcf4c12 | 298 | #endif |
e5dd39fc | 299 | #ifdef USE_REENTRANT_API |
59bd0823 | 300 | Perl_reentrant_init(aTHX); |
e5dd39fc | 301 | #endif |
3d47000e AB |
302 | |
303 | /* Note that strtab is a rather special HV. Assumptions are made | |
304 | about not iterating on it, and not adding tie magic to it. | |
305 | It is properly deallocated in perl_destruct() */ | |
306 | PL_strtab = newHV(); | |
307 | ||
3d47000e AB |
308 | HvSHAREKEYS_off(PL_strtab); /* mandatory */ |
309 | hv_ksplit(PL_strtab, 512); | |
310 | ||
0631ea03 AB |
311 | #if defined(__DYNAMIC__) && (defined(NeXT) || defined(__NeXT__)) |
312 | _dyld_lookup_and_bind | |
313 | ("__environ", (unsigned long *) &environ_pointer, NULL); | |
314 | #endif /* environ */ | |
315 | ||
2f42fcb0 JH |
316 | #ifndef PERL_MICRO |
317 | # ifdef USE_ENVIRON_ARRAY | |
0631ea03 | 318 | PL_origenviron = environ; |
2f42fcb0 | 319 | # endif |
0631ea03 AB |
320 | #endif |
321 | ||
5311654c | 322 | /* Use sysconf(_SC_CLK_TCK) if available, if not |
dbc1d986 | 323 | * available or if the sysconf() fails, use the HZ. |
27da23d5 JH |
324 | * BeOS has those, but returns the wrong value. |
325 | * The HZ if not originally defined has been by now | |
326 | * been defined as CLK_TCK, if available. */ | |
dbc1d986 | 327 | #if defined(HAS_SYSCONF) && defined(_SC_CLK_TCK) && !defined(__BEOS__) |
5311654c JH |
328 | PL_clocktick = sysconf(_SC_CLK_TCK); |
329 | if (PL_clocktick <= 0) | |
330 | #endif | |
331 | PL_clocktick = HZ; | |
332 | ||
081fc587 AB |
333 | PL_stashcache = newHV(); |
334 | ||
e6830b13 NC |
335 | PL_patchlevel = Perl_newSVpvf(aTHX_ "%d.%d.%d", (int)PERL_REVISION, |
336 | (int)PERL_VERSION, (int)PERL_SUBVERSION); | |
d7aa5382 | 337 | |
27da23d5 JH |
338 | #ifdef HAS_MMAP |
339 | if (!PL_mmap_page_size) { | |
340 | #if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_MMAP_PAGE_SIZE)) | |
341 | { | |
342 | SETERRNO(0, SS_NORMAL); | |
343 | # ifdef _SC_PAGESIZE | |
344 | PL_mmap_page_size = sysconf(_SC_PAGESIZE); | |
345 | # else | |
346 | PL_mmap_page_size = sysconf(_SC_MMAP_PAGE_SIZE); | |
347 | # endif | |
348 | if ((long) PL_mmap_page_size < 0) { | |
349 | if (errno) { | |
350 | SV *error = ERRSV; | |
27da23d5 | 351 | (void) SvUPGRADE(error, SVt_PV); |
0510663f | 352 | Perl_croak(aTHX_ "panic: sysconf: %s", SvPV_nolen_const(error)); |
27da23d5 JH |
353 | } |
354 | else | |
355 | Perl_croak(aTHX_ "panic: sysconf: pagesize unknown"); | |
356 | } | |
357 | } | |
358 | #else | |
359 | # ifdef HAS_GETPAGESIZE | |
360 | PL_mmap_page_size = getpagesize(); | |
361 | # else | |
362 | # if defined(I_SYS_PARAM) && defined(PAGESIZE) | |
363 | PL_mmap_page_size = PAGESIZE; /* compiletime, bad */ | |
364 | # endif | |
365 | # endif | |
366 | #endif | |
367 | if (PL_mmap_page_size <= 0) | |
368 | Perl_croak(aTHX_ "panic: bad pagesize %" IVdf, | |
369 | (IV) PL_mmap_page_size); | |
370 | } | |
371 | #endif /* HAS_MMAP */ | |
372 | ||
373 | #if defined(HAS_TIMES) && defined(PERL_NEED_TIMESBASE) | |
374 | PL_timesbase.tms_utime = 0; | |
375 | PL_timesbase.tms_stime = 0; | |
376 | PL_timesbase.tms_cutime = 0; | |
377 | PL_timesbase.tms_cstime = 0; | |
378 | #endif | |
379 | ||
8990e307 | 380 | ENTER; |
79072805 LW |
381 | } |
382 | ||
954c1994 | 383 | /* |
62375a60 NIS |
384 | =for apidoc nothreadhook |
385 | ||
386 | Stub that provides thread hook for perl_destruct when there are | |
387 | no threads. | |
388 | ||
389 | =cut | |
390 | */ | |
391 | ||
392 | int | |
4e9e3734 | 393 | Perl_nothreadhook(pTHX) |
62375a60 NIS |
394 | { |
395 | return 0; | |
396 | } | |
397 | ||
41e4abd8 NC |
398 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
399 | void | |
400 | Perl_dump_sv_child(pTHX_ SV *sv) | |
401 | { | |
402 | ssize_t got; | |
bf357333 NC |
403 | const int sock = PL_dumper_fd; |
404 | const int debug_fd = PerlIO_fileno(Perl_debug_log); | |
bf357333 NC |
405 | union control_un control; |
406 | struct msghdr msg; | |
808ad2d0 | 407 | struct iovec vec[2]; |
bf357333 | 408 | struct cmsghdr *cmptr; |
808ad2d0 NC |
409 | int returned_errno; |
410 | unsigned char buffer[256]; | |
41e4abd8 | 411 | |
bf357333 | 412 | if(sock == -1 || debug_fd == -1) |
41e4abd8 NC |
413 | return; |
414 | ||
415 | PerlIO_flush(Perl_debug_log); | |
416 | ||
bf357333 NC |
417 | /* All these shenanigans are to pass a file descriptor over to our child for |
418 | it to dump out to. We can't let it hold open the file descriptor when it | |
419 | forks, as the file descriptor it will dump to can turn out to be one end | |
420 | of pipe that some other process will wait on for EOF. (So as it would | |
421 | be open, the wait would be forever. */ | |
422 | ||
423 | msg.msg_control = control.control; | |
424 | msg.msg_controllen = sizeof(control.control); | |
425 | /* We're a connected socket so we don't need a destination */ | |
426 | msg.msg_name = NULL; | |
427 | msg.msg_namelen = 0; | |
428 | msg.msg_iov = vec; | |
808ad2d0 | 429 | msg.msg_iovlen = 1; |
bf357333 NC |
430 | |
431 | cmptr = CMSG_FIRSTHDR(&msg); | |
432 | cmptr->cmsg_len = CMSG_LEN(sizeof(int)); | |
433 | cmptr->cmsg_level = SOL_SOCKET; | |
434 | cmptr->cmsg_type = SCM_RIGHTS; | |
435 | *((int *)CMSG_DATA(cmptr)) = 1; | |
436 | ||
437 | vec[0].iov_base = (void*)&sv; | |
438 | vec[0].iov_len = sizeof(sv); | |
439 | got = sendmsg(sock, &msg, 0); | |
41e4abd8 NC |
440 | |
441 | if(got < 0) { | |
bf357333 | 442 | perror("Debug leaking scalars parent sendmsg failed"); |
41e4abd8 NC |
443 | abort(); |
444 | } | |
bf357333 NC |
445 | if(got < sizeof(sv)) { |
446 | perror("Debug leaking scalars parent short sendmsg"); | |
41e4abd8 NC |
447 | abort(); |
448 | } | |
449 | ||
808ad2d0 NC |
450 | /* Return protocol is |
451 | int: errno value | |
452 | unsigned char: length of location string (0 for empty) | |
453 | unsigned char*: string (not terminated) | |
454 | */ | |
455 | vec[0].iov_base = (void*)&returned_errno; | |
456 | vec[0].iov_len = sizeof(returned_errno); | |
457 | vec[1].iov_base = buffer; | |
458 | vec[1].iov_len = 1; | |
459 | ||
460 | got = readv(sock, vec, 2); | |
41e4abd8 NC |
461 | |
462 | if(got < 0) { | |
463 | perror("Debug leaking scalars parent read failed"); | |
808ad2d0 | 464 | PerlIO_flush(PerlIO_stderr()); |
41e4abd8 NC |
465 | abort(); |
466 | } | |
808ad2d0 | 467 | if(got < sizeof(returned_errno) + 1) { |
41e4abd8 | 468 | perror("Debug leaking scalars parent short read"); |
808ad2d0 | 469 | PerlIO_flush(PerlIO_stderr()); |
41e4abd8 NC |
470 | abort(); |
471 | } | |
472 | ||
808ad2d0 NC |
473 | if (*buffer) { |
474 | got = read(sock, buffer + 1, *buffer); | |
475 | if(got < 0) { | |
476 | perror("Debug leaking scalars parent read 2 failed"); | |
477 | PerlIO_flush(PerlIO_stderr()); | |
478 | abort(); | |
479 | } | |
480 | ||
481 | if(got < *buffer) { | |
482 | perror("Debug leaking scalars parent short read 2"); | |
483 | PerlIO_flush(PerlIO_stderr()); | |
484 | abort(); | |
485 | } | |
486 | } | |
487 | ||
488 | if (returned_errno || *buffer) { | |
489 | Perl_warn(aTHX_ "Debug leaking scalars child failed%s%.*s with errno" | |
490 | " %d: %s", (*buffer ? " at " : ""), (int) *buffer, buffer + 1, | |
491 | returned_errno, strerror(returned_errno)); | |
41e4abd8 NC |
492 | } |
493 | } | |
494 | #endif | |
495 | ||
62375a60 | 496 | /* |
954c1994 GS |
497 | =for apidoc perl_destruct |
498 | ||
499 | Shuts down a Perl interpreter. See L<perlembed>. | |
500 | ||
501 | =cut | |
502 | */ | |
503 | ||
31d77e54 | 504 | int |
0cb96387 | 505 | perl_destruct(pTHXx) |
79072805 | 506 | { |
27da23d5 | 507 | dVAR; |
7c474504 | 508 | volatile int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
a0d0e21e | 509 | HV *hv; |
2aa47728 | 510 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
2aa47728 NC |
511 | pid_t child; |
512 | #endif | |
8990e307 | 513 | |
9d4ba2ae AL |
514 | PERL_UNUSED_ARG(my_perl); |
515 | ||
7766f137 GS |
516 | /* wait for all pseudo-forked children to finish */ |
517 | PERL_WAIT_FOR_CHILDREN; | |
518 | ||
3280af22 | 519 | destruct_level = PL_perl_destruct_level; |
4633a7c4 LW |
520 | #ifdef DEBUGGING |
521 | { | |
9d4ba2ae AL |
522 | const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL"); |
523 | if (s) { | |
e1ec3a88 | 524 | const int i = atoi(s); |
5f05dabc | 525 | if (destruct_level < i) |
526 | destruct_level = i; | |
527 | } | |
4633a7c4 LW |
528 | } |
529 | #endif | |
530 | ||
27da23d5 | 531 | if (PL_exit_flags & PERL_EXIT_DESTRUCT_END) { |
f3faeb53 AB |
532 | dJMPENV; |
533 | int x = 0; | |
534 | ||
535 | JMPENV_PUSH(x); | |
1b6737cc | 536 | PERL_UNUSED_VAR(x); |
f3faeb53 AB |
537 | if (PL_endav && !PL_minus_c) |
538 | call_list(PL_scopestack_ix, PL_endav); | |
539 | JMPENV_POP; | |
26f423df | 540 | } |
f3faeb53 | 541 | LEAVE; |
a0d0e21e LW |
542 | FREETMPS; |
543 | ||
e00b64d4 | 544 | /* Need to flush since END blocks can produce output */ |
f13a2bc0 | 545 | my_fflush_all(); |
e00b64d4 | 546 | |
62375a60 NIS |
547 | if (CALL_FPTR(PL_threadhook)(aTHX)) { |
548 | /* Threads hook has vetoed further cleanup */ | |
b47cad08 | 549 | return STATUS_NATIVE_EXPORT; |
62375a60 NIS |
550 | } |
551 | ||
2aa47728 NC |
552 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
553 | if (destruct_level != 0) { | |
554 | /* Fork here to create a child. Our child's job is to preserve the | |
555 | state of scalars prior to destruction, so that we can instruct it | |
556 | to dump any scalars that we later find have leaked. | |
557 | There's no subtlety in this code - it assumes POSIX, and it doesn't | |
558 | fail gracefully */ | |
559 | int fd[2]; | |
560 | ||
561 | if(socketpair(AF_UNIX, SOCK_STREAM, 0, fd)) { | |
562 | perror("Debug leaking scalars socketpair failed"); | |
563 | abort(); | |
564 | } | |
565 | ||
566 | child = fork(); | |
567 | if(child == -1) { | |
568 | perror("Debug leaking scalars fork failed"); | |
569 | abort(); | |
570 | } | |
571 | if (!child) { | |
572 | /* We are the child */ | |
3125a5a4 NC |
573 | const int sock = fd[1]; |
574 | const int debug_fd = PerlIO_fileno(Perl_debug_log); | |
575 | int f; | |
808ad2d0 NC |
576 | const char *where; |
577 | /* Our success message is an integer 0, and a char 0 */ | |
578 | static const char success[sizeof(int) + 1]; | |
3125a5a4 | 579 | |
2aa47728 | 580 | close(fd[0]); |
2aa47728 | 581 | |
3125a5a4 NC |
582 | /* We need to close all other file descriptors otherwise we end up |
583 | with interesting hangs, where the parent closes its end of a | |
584 | pipe, and sits waiting for (another) child to terminate. Only | |
585 | that child never terminates, because it never gets EOF, because | |
bf357333 NC |
586 | we also have the far end of the pipe open. We even need to |
587 | close the debugging fd, because sometimes it happens to be one | |
588 | end of a pipe, and a process is waiting on the other end for | |
589 | EOF. Normally it would be closed at some point earlier in | |
590 | destruction, but if we happen to cause the pipe to remain open, | |
591 | EOF never occurs, and we get an infinite hang. Hence all the | |
592 | games to pass in a file descriptor if it's actually needed. */ | |
3125a5a4 NC |
593 | |
594 | f = sysconf(_SC_OPEN_MAX); | |
595 | if(f < 0) { | |
808ad2d0 NC |
596 | where = "sysconf failed"; |
597 | goto abort; | |
3125a5a4 NC |
598 | } |
599 | while (f--) { | |
600 | if (f == sock) | |
601 | continue; | |
3125a5a4 NC |
602 | close(f); |
603 | } | |
604 | ||
2aa47728 NC |
605 | while (1) { |
606 | SV *target; | |
bf357333 NC |
607 | union control_un control; |
608 | struct msghdr msg; | |
609 | struct iovec vec[1]; | |
610 | struct cmsghdr *cmptr; | |
611 | ssize_t got; | |
612 | int got_fd; | |
613 | ||
614 | msg.msg_control = control.control; | |
615 | msg.msg_controllen = sizeof(control.control); | |
616 | /* We're a connected socket so we don't need a source */ | |
617 | msg.msg_name = NULL; | |
618 | msg.msg_namelen = 0; | |
619 | msg.msg_iov = vec; | |
620 | msg.msg_iovlen = sizeof(vec)/sizeof(vec[0]); | |
621 | ||
622 | vec[0].iov_base = (void*)⌖ | |
623 | vec[0].iov_len = sizeof(target); | |
624 | ||
625 | got = recvmsg(sock, &msg, 0); | |
2aa47728 NC |
626 | |
627 | if(got == 0) | |
628 | break; | |
629 | if(got < 0) { | |
808ad2d0 NC |
630 | where = "recv failed"; |
631 | goto abort; | |
2aa47728 NC |
632 | } |
633 | if(got < sizeof(target)) { | |
808ad2d0 NC |
634 | where = "short recv"; |
635 | goto abort; | |
2aa47728 | 636 | } |
bf357333 | 637 | |
808ad2d0 NC |
638 | if(!(cmptr = CMSG_FIRSTHDR(&msg))) { |
639 | where = "no cmsg"; | |
640 | goto abort; | |
641 | } | |
642 | if(cmptr->cmsg_len != CMSG_LEN(sizeof(int))) { | |
643 | where = "wrong cmsg_len"; | |
644 | goto abort; | |
645 | } | |
646 | if(cmptr->cmsg_level != SOL_SOCKET) { | |
647 | where = "wrong cmsg_level"; | |
648 | goto abort; | |
649 | } | |
650 | if(cmptr->cmsg_type != SCM_RIGHTS) { | |
651 | where = "wrong cmsg_type"; | |
652 | goto abort; | |
653 | } | |
bf357333 NC |
654 | |
655 | got_fd = *(int*)CMSG_DATA(cmptr); | |
656 | /* For our last little bit of trickery, put the file descriptor | |
657 | back into Perl_debug_log, as if we never actually closed it | |
658 | */ | |
808ad2d0 NC |
659 | if(got_fd != debug_fd) { |
660 | if (dup2(got_fd, debug_fd) == -1) { | |
661 | where = "dup2"; | |
662 | goto abort; | |
663 | } | |
664 | } | |
2aa47728 | 665 | sv_dump(target); |
bf357333 | 666 | |
2aa47728 NC |
667 | PerlIO_flush(Perl_debug_log); |
668 | ||
808ad2d0 | 669 | got = write(sock, &success, sizeof(success)); |
2aa47728 NC |
670 | |
671 | if(got < 0) { | |
808ad2d0 NC |
672 | where = "write failed"; |
673 | goto abort; | |
2aa47728 | 674 | } |
808ad2d0 NC |
675 | if(got < sizeof(success)) { |
676 | where = "short write"; | |
677 | goto abort; | |
2aa47728 NC |
678 | } |
679 | } | |
680 | _exit(0); | |
808ad2d0 NC |
681 | abort: |
682 | { | |
683 | int send_errno = errno; | |
684 | unsigned char length = (unsigned char) strlen(where); | |
685 | struct iovec failure[3] = { | |
686 | {(void*)&send_errno, sizeof(send_errno)}, | |
687 | {&length, 1}, | |
688 | {(void*)where, length} | |
689 | }; | |
690 | int got = writev(sock, failure, 3); | |
691 | /* Bad news travels fast. Faster than data. We'll get a SIGPIPE | |
692 | in the parent if we try to read from the socketpair after the | |
693 | child has exited, even if there was data to read. | |
694 | So sleep a bit to give the parent a fighting chance of | |
695 | reading the data. */ | |
696 | sleep(2); | |
697 | _exit((got == -1) ? errno : 0); | |
698 | } | |
bf357333 | 699 | /* End of child. */ |
2aa47728 | 700 | } |
41e4abd8 | 701 | PL_dumper_fd = fd[0]; |
2aa47728 NC |
702 | close(fd[1]); |
703 | } | |
704 | #endif | |
705 | ||
ff0cee69 | 706 | /* We must account for everything. */ |
707 | ||
708 | /* Destroy the main CV and syntax tree */ | |
17fbfdf6 NC |
709 | /* Do this now, because destroying ops can cause new SVs to be generated |
710 | in Perl_pad_swipe, and when running with -DDEBUG_LEAKING_SCALARS they | |
711 | PL_curcop to point to a valid op from which the filename structure | |
712 | member is copied. */ | |
713 | PL_curcop = &PL_compiling; | |
3280af22 | 714 | if (PL_main_root) { |
4e380990 DM |
715 | /* ensure comppad/curpad to refer to main's pad */ |
716 | if (CvPADLIST(PL_main_cv)) { | |
717 | PAD_SET_CUR_NOSAVE(CvPADLIST(PL_main_cv), 1); | |
718 | } | |
3280af22 NIS |
719 | op_free(PL_main_root); |
720 | PL_main_root = Nullop; | |
a0d0e21e | 721 | } |
3280af22 NIS |
722 | PL_main_start = Nullop; |
723 | SvREFCNT_dec(PL_main_cv); | |
724 | PL_main_cv = Nullcv; | |
24d3c518 | 725 | PL_dirty = TRUE; |
ff0cee69 | 726 | |
13621cfb NIS |
727 | /* Tell PerlIO we are about to tear things apart in case |
728 | we have layers which are using resources that should | |
729 | be cleaned up now. | |
730 | */ | |
731 | ||
732 | PerlIO_destruct(aTHX); | |
733 | ||
3280af22 | 734 | if (PL_sv_objcount) { |
a0d0e21e LW |
735 | /* |
736 | * Try to destruct global references. We do this first so that the | |
737 | * destructors and destructees still exist. Some sv's might remain. | |
738 | * Non-referenced objects are on their own. | |
739 | */ | |
a0d0e21e | 740 | sv_clean_objs(); |
bf9cdc68 | 741 | PL_sv_objcount = 0; |
8990e307 LW |
742 | } |
743 | ||
5cd24f17 | 744 | /* unhook hooks which will soon be, or use, destroyed data */ |
3280af22 NIS |
745 | SvREFCNT_dec(PL_warnhook); |
746 | PL_warnhook = Nullsv; | |
747 | SvREFCNT_dec(PL_diehook); | |
748 | PL_diehook = Nullsv; | |
5cd24f17 | 749 | |
4b556e6c | 750 | /* call exit list functions */ |
3280af22 | 751 | while (PL_exitlistlen-- > 0) |
acfe0abc | 752 | PL_exitlist[PL_exitlistlen].fn(aTHX_ PL_exitlist[PL_exitlistlen].ptr); |
4b556e6c | 753 | |
3280af22 | 754 | Safefree(PL_exitlist); |
4b556e6c | 755 | |
1c4916e5 CB |
756 | PL_exitlist = NULL; |
757 | PL_exitlistlen = 0; | |
758 | ||
a0d0e21e | 759 | if (destruct_level == 0){ |
8990e307 | 760 | |
a0d0e21e | 761 | DEBUG_P(debprofdump()); |
ac27b0f5 | 762 | |
56a2bab7 NIS |
763 | #if defined(PERLIO_LAYERS) |
764 | /* No more IO - including error messages ! */ | |
765 | PerlIO_cleanup(aTHX); | |
766 | #endif | |
767 | ||
a0d0e21e | 768 | /* The exit() function will do everything that needs doing. */ |
b47cad08 | 769 | return STATUS_NATIVE_EXPORT; |
a0d0e21e | 770 | } |
5dd60ef7 | 771 | |
551a8b83 | 772 | /* jettison our possibly duplicated environment */ |
4b647fb0 DM |
773 | /* if PERL_USE_SAFE_PUTENV is defined environ will not have been copied |
774 | * so we certainly shouldn't free it here | |
775 | */ | |
2f42fcb0 | 776 | #ifndef PERL_MICRO |
4b647fb0 | 777 | #if defined(USE_ENVIRON_ARRAY) && !defined(PERL_USE_SAFE_PUTENV) |
50acdf95 | 778 | if (environ != PL_origenviron && !PL_use_safe_putenv |
4efc5df6 GS |
779 | #ifdef USE_ITHREADS |
780 | /* only main thread can free environ[0] contents */ | |
781 | && PL_curinterp == aTHX | |
782 | #endif | |
783 | ) | |
784 | { | |
551a8b83 JH |
785 | I32 i; |
786 | ||
787 | for (i = 0; environ[i]; i++) | |
4b420006 | 788 | safesysfree(environ[i]); |
0631ea03 | 789 | |
4b420006 JH |
790 | /* Must use safesysfree() when working with environ. */ |
791 | safesysfree(environ); | |
551a8b83 JH |
792 | |
793 | environ = PL_origenviron; | |
794 | } | |
795 | #endif | |
2f42fcb0 | 796 | #endif /* !PERL_MICRO */ |
551a8b83 | 797 | |
804ffa60 DM |
798 | /* reset so print() ends up where we expect */ |
799 | setdefout(Nullgv); | |
800 | ||
5f8cb046 DM |
801 | #ifdef USE_ITHREADS |
802 | /* the syntax tree is shared between clones | |
803 | * so op_free(PL_main_root) only ReREFCNT_dec's | |
804 | * REGEXPs in the parent interpreter | |
805 | * we need to manually ReREFCNT_dec for the clones | |
806 | */ | |
807 | { | |
808 | I32 i = AvFILLp(PL_regex_padav) + 1; | |
809 | SV **ary = AvARRAY(PL_regex_padav); | |
810 | ||
811 | while (i) { | |
35061a7e | 812 | SV *resv = ary[--i]; |
35061a7e DM |
813 | |
814 | if (SvFLAGS(resv) & SVf_BREAK) { | |
577e12cc | 815 | /* this is PL_reg_curpm, already freed |
35061a7e DM |
816 | * flag is set in regexec.c:S_regtry |
817 | */ | |
818 | SvFLAGS(resv) &= ~SVf_BREAK; | |
3a1ee7e8 | 819 | } |
1cc8b4c5 AB |
820 | else if(SvREPADTMP(resv)) { |
821 | SvREPADTMP_off(resv); | |
822 | } | |
a560f29b NC |
823 | else if(SvIOKp(resv)) { |
824 | REGEXP *re = INT2PTR(REGEXP *,SvIVX(resv)); | |
5f8cb046 DM |
825 | ReREFCNT_dec(re); |
826 | } | |
827 | } | |
828 | } | |
829 | SvREFCNT_dec(PL_regex_padav); | |
830 | PL_regex_padav = Nullav; | |
831 | PL_regex_pad = NULL; | |
832 | #endif | |
833 | ||
081fc587 AB |
834 | SvREFCNT_dec((SV*) PL_stashcache); |
835 | PL_stashcache = NULL; | |
836 | ||
5f05dabc | 837 | /* loosen bonds of global variables */ |
838 | ||
3280af22 NIS |
839 | if(PL_rsfp) { |
840 | (void)PerlIO_close(PL_rsfp); | |
841 | PL_rsfp = Nullfp; | |
8ebc5c01 | 842 | } |
843 | ||
844 | /* Filters for program text */ | |
3280af22 NIS |
845 | SvREFCNT_dec(PL_rsfp_filters); |
846 | PL_rsfp_filters = Nullav; | |
8ebc5c01 | 847 | |
848 | /* switches */ | |
3280af22 NIS |
849 | PL_preprocess = FALSE; |
850 | PL_minus_n = FALSE; | |
851 | PL_minus_p = FALSE; | |
852 | PL_minus_l = FALSE; | |
853 | PL_minus_a = FALSE; | |
854 | PL_minus_F = FALSE; | |
855 | PL_doswitches = FALSE; | |
599cee73 | 856 | PL_dowarn = G_WARN_OFF; |
3280af22 NIS |
857 | PL_doextract = FALSE; |
858 | PL_sawampersand = FALSE; /* must save all match strings */ | |
3280af22 NIS |
859 | PL_unsafe = FALSE; |
860 | ||
861 | Safefree(PL_inplace); | |
862 | PL_inplace = Nullch; | |
a7cb1f99 | 863 | SvREFCNT_dec(PL_patchlevel); |
3280af22 NIS |
864 | |
865 | if (PL_e_script) { | |
866 | SvREFCNT_dec(PL_e_script); | |
867 | PL_e_script = Nullsv; | |
8ebc5c01 | 868 | } |
869 | ||
bf9cdc68 RG |
870 | PL_perldb = 0; |
871 | ||
8ebc5c01 | 872 | /* magical thingies */ |
873 | ||
7889fe52 NIS |
874 | SvREFCNT_dec(PL_ofs_sv); /* $, */ |
875 | PL_ofs_sv = Nullsv; | |
5f05dabc | 876 | |
7889fe52 NIS |
877 | SvREFCNT_dec(PL_ors_sv); /* $\ */ |
878 | PL_ors_sv = Nullsv; | |
8ebc5c01 | 879 | |
3280af22 NIS |
880 | SvREFCNT_dec(PL_rs); /* $/ */ |
881 | PL_rs = Nullsv; | |
dc92893f | 882 | |
d33b2eba GS |
883 | PL_multiline = 0; /* $* */ |
884 | Safefree(PL_osname); /* $^O */ | |
885 | PL_osname = Nullch; | |
5f05dabc | 886 | |
3280af22 NIS |
887 | SvREFCNT_dec(PL_statname); |
888 | PL_statname = Nullsv; | |
889 | PL_statgv = Nullgv; | |
5f05dabc | 890 | |
8ebc5c01 | 891 | /* defgv, aka *_ should be taken care of elsewhere */ |
892 | ||
8ebc5c01 | 893 | /* clean up after study() */ |
3280af22 NIS |
894 | SvREFCNT_dec(PL_lastscream); |
895 | PL_lastscream = Nullsv; | |
896 | Safefree(PL_screamfirst); | |
897 | PL_screamfirst = 0; | |
898 | Safefree(PL_screamnext); | |
899 | PL_screamnext = 0; | |
8ebc5c01 | 900 | |
7d5ea4e7 GS |
901 | /* float buffer */ |
902 | Safefree(PL_efloatbuf); | |
903 | PL_efloatbuf = Nullch; | |
904 | PL_efloatsize = 0; | |
905 | ||
8ebc5c01 | 906 | /* startup and shutdown function lists */ |
3280af22 | 907 | SvREFCNT_dec(PL_beginav); |
5a837c8f | 908 | SvREFCNT_dec(PL_beginav_save); |
3280af22 | 909 | SvREFCNT_dec(PL_endav); |
7d30b5c4 | 910 | SvREFCNT_dec(PL_checkav); |
ece599bd | 911 | SvREFCNT_dec(PL_checkav_save); |
3280af22 NIS |
912 | SvREFCNT_dec(PL_initav); |
913 | PL_beginav = Nullav; | |
5a837c8f | 914 | PL_beginav_save = Nullav; |
3280af22 | 915 | PL_endav = Nullav; |
7d30b5c4 | 916 | PL_checkav = Nullav; |
ece599bd | 917 | PL_checkav_save = Nullav; |
3280af22 | 918 | PL_initav = Nullav; |
5618dfe8 | 919 | |
8ebc5c01 | 920 | /* shortcuts just get cleared */ |
3280af22 | 921 | PL_envgv = Nullgv; |
3280af22 NIS |
922 | PL_incgv = Nullgv; |
923 | PL_hintgv = Nullgv; | |
924 | PL_errgv = Nullgv; | |
925 | PL_argvgv = Nullgv; | |
926 | PL_argvoutgv = Nullgv; | |
927 | PL_stdingv = Nullgv; | |
bf49b057 | 928 | PL_stderrgv = Nullgv; |
3280af22 NIS |
929 | PL_last_in_gv = Nullgv; |
930 | PL_replgv = Nullgv; | |
bf9cdc68 RG |
931 | PL_DBgv = Nullgv; |
932 | PL_DBline = Nullgv; | |
933 | PL_DBsub = Nullgv; | |
934 | PL_DBsingle = Nullsv; | |
935 | PL_DBtrace = Nullsv; | |
936 | PL_DBsignal = Nullsv; | |
937 | PL_DBassertion = Nullsv; | |
938 | PL_DBcv = Nullcv; | |
939 | PL_dbargs = Nullav; | |
5c831c24 | 940 | PL_debstash = Nullhv; |
8ebc5c01 | 941 | |
7a1c5554 GS |
942 | SvREFCNT_dec(PL_argvout_stack); |
943 | PL_argvout_stack = Nullav; | |
8ebc5c01 | 944 | |
5c831c24 GS |
945 | SvREFCNT_dec(PL_modglobal); |
946 | PL_modglobal = Nullhv; | |
947 | SvREFCNT_dec(PL_preambleav); | |
948 | PL_preambleav = Nullav; | |
949 | SvREFCNT_dec(PL_subname); | |
950 | PL_subname = Nullsv; | |
951 | SvREFCNT_dec(PL_linestr); | |
952 | PL_linestr = Nullsv; | |
953 | SvREFCNT_dec(PL_pidstatus); | |
954 | PL_pidstatus = Nullhv; | |
955 | SvREFCNT_dec(PL_toptarget); | |
956 | PL_toptarget = Nullsv; | |
957 | SvREFCNT_dec(PL_bodytarget); | |
958 | PL_bodytarget = Nullsv; | |
959 | PL_formtarget = Nullsv; | |
960 | ||
d33b2eba | 961 | /* free locale stuff */ |
b9582b6a | 962 | #ifdef USE_LOCALE_COLLATE |
d33b2eba GS |
963 | Safefree(PL_collation_name); |
964 | PL_collation_name = Nullch; | |
b9582b6a | 965 | #endif |
d33b2eba | 966 | |
b9582b6a | 967 | #ifdef USE_LOCALE_NUMERIC |
d33b2eba GS |
968 | Safefree(PL_numeric_name); |
969 | PL_numeric_name = Nullch; | |
a453c169 | 970 | SvREFCNT_dec(PL_numeric_radix_sv); |
bf9cdc68 | 971 | PL_numeric_radix_sv = Nullsv; |
b9582b6a | 972 | #endif |
d33b2eba | 973 | |
5c831c24 GS |
974 | /* clear utf8 character classes */ |
975 | SvREFCNT_dec(PL_utf8_alnum); | |
976 | SvREFCNT_dec(PL_utf8_alnumc); | |
977 | SvREFCNT_dec(PL_utf8_ascii); | |
978 | SvREFCNT_dec(PL_utf8_alpha); | |
979 | SvREFCNT_dec(PL_utf8_space); | |
980 | SvREFCNT_dec(PL_utf8_cntrl); | |
981 | SvREFCNT_dec(PL_utf8_graph); | |
982 | SvREFCNT_dec(PL_utf8_digit); | |
983 | SvREFCNT_dec(PL_utf8_upper); | |
984 | SvREFCNT_dec(PL_utf8_lower); | |
985 | SvREFCNT_dec(PL_utf8_print); | |
986 | SvREFCNT_dec(PL_utf8_punct); | |
987 | SvREFCNT_dec(PL_utf8_xdigit); | |
988 | SvREFCNT_dec(PL_utf8_mark); | |
989 | SvREFCNT_dec(PL_utf8_toupper); | |
4dbdbdc2 | 990 | SvREFCNT_dec(PL_utf8_totitle); |
5c831c24 | 991 | SvREFCNT_dec(PL_utf8_tolower); |
b4e400f9 | 992 | SvREFCNT_dec(PL_utf8_tofold); |
82686b01 JH |
993 | SvREFCNT_dec(PL_utf8_idstart); |
994 | SvREFCNT_dec(PL_utf8_idcont); | |
5c831c24 GS |
995 | PL_utf8_alnum = Nullsv; |
996 | PL_utf8_alnumc = Nullsv; | |
997 | PL_utf8_ascii = Nullsv; | |
998 | PL_utf8_alpha = Nullsv; | |
999 | PL_utf8_space = Nullsv; | |
1000 | PL_utf8_cntrl = Nullsv; | |
1001 | PL_utf8_graph = Nullsv; | |
1002 | PL_utf8_digit = Nullsv; | |
1003 | PL_utf8_upper = Nullsv; | |
1004 | PL_utf8_lower = Nullsv; | |
1005 | PL_utf8_print = Nullsv; | |
1006 | PL_utf8_punct = Nullsv; | |
1007 | PL_utf8_xdigit = Nullsv; | |
1008 | PL_utf8_mark = Nullsv; | |
1009 | PL_utf8_toupper = Nullsv; | |
1010 | PL_utf8_totitle = Nullsv; | |
1011 | PL_utf8_tolower = Nullsv; | |
b4e400f9 | 1012 | PL_utf8_tofold = Nullsv; |
82686b01 JH |
1013 | PL_utf8_idstart = Nullsv; |
1014 | PL_utf8_idcont = Nullsv; | |
5c831c24 | 1015 | |
971a9dd3 GS |
1016 | if (!specialWARN(PL_compiling.cop_warnings)) |
1017 | SvREFCNT_dec(PL_compiling.cop_warnings); | |
5c831c24 | 1018 | PL_compiling.cop_warnings = Nullsv; |
ac27b0f5 NIS |
1019 | if (!specialCopIO(PL_compiling.cop_io)) |
1020 | SvREFCNT_dec(PL_compiling.cop_io); | |
1021 | PL_compiling.cop_io = Nullsv; | |
05ec9bb3 NIS |
1022 | CopFILE_free(&PL_compiling); |
1023 | CopSTASH_free(&PL_compiling); | |
5c831c24 | 1024 | |
a0d0e21e | 1025 | /* Prepare to destruct main symbol table. */ |
5f05dabc | 1026 | |
3280af22 NIS |
1027 | hv = PL_defstash; |
1028 | PL_defstash = 0; | |
a0d0e21e | 1029 | SvREFCNT_dec(hv); |
5c831c24 GS |
1030 | SvREFCNT_dec(PL_curstname); |
1031 | PL_curstname = Nullsv; | |
a0d0e21e | 1032 | |
5a844595 GS |
1033 | /* clear queued errors */ |
1034 | SvREFCNT_dec(PL_errors); | |
1035 | PL_errors = Nullsv; | |
1036 | ||
a0d0e21e | 1037 | FREETMPS; |
0453d815 | 1038 | if (destruct_level >= 2 && ckWARN_d(WARN_INTERNAL)) { |
3280af22 | 1039 | if (PL_scopestack_ix != 0) |
9014280d | 1040 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
0453d815 | 1041 | "Unbalanced scopes: %ld more ENTERs than LEAVEs\n", |
3280af22 NIS |
1042 | (long)PL_scopestack_ix); |
1043 | if (PL_savestack_ix != 0) | |
9014280d | 1044 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
0453d815 | 1045 | "Unbalanced saves: %ld more saves than restores\n", |
3280af22 NIS |
1046 | (long)PL_savestack_ix); |
1047 | if (PL_tmps_floor != -1) | |
9014280d | 1048 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced tmps: %ld more allocs than frees\n", |
3280af22 | 1049 | (long)PL_tmps_floor + 1); |
a0d0e21e | 1050 | if (cxstack_ix != -1) |
9014280d | 1051 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced context: %ld more PUSHes than POPs\n", |
ff0cee69 | 1052 | (long)cxstack_ix + 1); |
a0d0e21e | 1053 | } |
8990e307 LW |
1054 | |
1055 | /* Now absolutely destruct everything, somehow or other, loops or no. */ | |
d33b2eba | 1056 | SvFLAGS(PL_fdpid) |= SVTYPEMASK; /* don't clean out pid table now */ |
3280af22 | 1057 | SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
5226ed68 JH |
1058 | |
1059 | /* the 2 is for PL_fdpid and PL_strtab */ | |
1060 | while (PL_sv_count > 2 && sv_clean_all()) | |
1061 | ; | |
1062 | ||
d33b2eba GS |
1063 | SvFLAGS(PL_fdpid) &= ~SVTYPEMASK; |
1064 | SvFLAGS(PL_fdpid) |= SVt_PVAV; | |
3280af22 NIS |
1065 | SvFLAGS(PL_strtab) &= ~SVTYPEMASK; |
1066 | SvFLAGS(PL_strtab) |= SVt_PVHV; | |
d33b2eba | 1067 | |
d4777f27 GS |
1068 | AvREAL_off(PL_fdpid); /* no surviving entries */ |
1069 | SvREFCNT_dec(PL_fdpid); /* needed in io_close() */ | |
d33b2eba GS |
1070 | PL_fdpid = Nullav; |
1071 | ||
6c644e78 GS |
1072 | #ifdef HAVE_INTERP_INTERN |
1073 | sys_intern_clear(); | |
1074 | #endif | |
1075 | ||
6e72f9df | 1076 | /* Destruct the global string table. */ |
1077 | { | |
1078 | /* Yell and reset the HeVAL() slots that are still holding refcounts, | |
1079 | * so that sv_free() won't fail on them. | |
80459961 NC |
1080 | * Now that the global string table is using a single hunk of memory |
1081 | * for both HE and HEK, we either need to explicitly unshare it the | |
1082 | * correct way, or actually free things here. | |
6e72f9df | 1083 | */ |
80459961 NC |
1084 | I32 riter = 0; |
1085 | const I32 max = HvMAX(PL_strtab); | |
1086 | HE **array = HvARRAY(PL_strtab); | |
1087 | HE *hent = array[0]; | |
1088 | ||
6e72f9df | 1089 | for (;;) { |
0453d815 | 1090 | if (hent && ckWARN_d(WARN_INTERNAL)) { |
80459961 | 1091 | HE *next = HeNEXT(hent); |
9014280d | 1092 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
0453d815 | 1093 | "Unbalanced string table refcount: (%d) for \"%s\"", |
6e72f9df | 1094 | HeVAL(hent) - Nullsv, HeKEY(hent)); |
80459961 NC |
1095 | Safefree(hent); |
1096 | hent = next; | |
6e72f9df | 1097 | } |
1098 | if (!hent) { | |
1099 | if (++riter > max) | |
1100 | break; | |
1101 | hent = array[riter]; | |
1102 | } | |
1103 | } | |
80459961 NC |
1104 | |
1105 | Safefree(array); | |
1106 | HvARRAY(PL_strtab) = 0; | |
1107 | HvTOTALKEYS(PL_strtab) = 0; | |
1108 | HvFILL(PL_strtab) = 0; | |
6e72f9df | 1109 | } |
3280af22 | 1110 | SvREFCNT_dec(PL_strtab); |
6e72f9df | 1111 | |
e652bb2f | 1112 | #ifdef USE_ITHREADS |
c21d1a0f | 1113 | /* free the pointer tables used for cloning */ |
a0739874 | 1114 | ptr_table_free(PL_ptr_table); |
bf9cdc68 | 1115 | PL_ptr_table = (PTR_TBL_t*)NULL; |
53186e96 | 1116 | #endif |
a0739874 | 1117 | |
d33b2eba GS |
1118 | /* free special SVs */ |
1119 | ||
1120 | SvREFCNT(&PL_sv_yes) = 0; | |
1121 | sv_clear(&PL_sv_yes); | |
1122 | SvANY(&PL_sv_yes) = NULL; | |
4c5e2b0d | 1123 | SvFLAGS(&PL_sv_yes) = 0; |
d33b2eba GS |
1124 | |
1125 | SvREFCNT(&PL_sv_no) = 0; | |
1126 | sv_clear(&PL_sv_no); | |
1127 | SvANY(&PL_sv_no) = NULL; | |
4c5e2b0d | 1128 | SvFLAGS(&PL_sv_no) = 0; |
01724ea0 | 1129 | |
9f375a43 DM |
1130 | { |
1131 | int i; | |
1132 | for (i=0; i<=2; i++) { | |
1133 | SvREFCNT(PERL_DEBUG_PAD(i)) = 0; | |
1134 | sv_clear(PERL_DEBUG_PAD(i)); | |
1135 | SvANY(PERL_DEBUG_PAD(i)) = NULL; | |
1136 | SvFLAGS(PERL_DEBUG_PAD(i)) = 0; | |
1137 | } | |
1138 | } | |
1139 | ||
0453d815 | 1140 | if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL)) |
9014280d | 1141 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Scalars leaked: %ld\n", (long)PL_sv_count); |
6e72f9df | 1142 | |
eba0f806 DM |
1143 | #ifdef DEBUG_LEAKING_SCALARS |
1144 | if (PL_sv_count != 0) { | |
1145 | SV* sva; | |
1146 | SV* sv; | |
1147 | register SV* svend; | |
1148 | ||
1149 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { | |
1150 | svend = &sva[SvREFCNT(sva)]; | |
1151 | for (sv = sva + 1; sv < svend; ++sv) { | |
1152 | if (SvTYPE(sv) != SVTYPEMASK) { | |
a548cda8 | 1153 | PerlIO_printf(Perl_debug_log, "leaked: sv=0x%p" |
61b61456 | 1154 | " flags=0x%"UVxf |
fd0854ff DM |
1155 | " refcnt=%"UVuf pTHX__FORMAT "\n" |
1156 | "\tallocated at %s:%d %s %s%s\n", | |
1157 | sv, sv->sv_flags, sv->sv_refcnt pTHX__VALUE, | |
1158 | sv->sv_debug_file ? sv->sv_debug_file : "(unknown)", | |
1159 | sv->sv_debug_line, | |
1160 | sv->sv_debug_inpad ? "for" : "by", | |
1161 | sv->sv_debug_optype ? | |
1162 | PL_op_name[sv->sv_debug_optype]: "(none)", | |
1163 | sv->sv_debug_cloned ? " (cloned)" : "" | |
1164 | ); | |
2aa47728 | 1165 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
41e4abd8 | 1166 | Perl_dump_sv_child(aTHX_ sv); |
2aa47728 | 1167 | #endif |
eba0f806 DM |
1168 | } |
1169 | } | |
1170 | } | |
1171 | } | |
2aa47728 NC |
1172 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
1173 | { | |
1174 | int status; | |
1175 | fd_set rset; | |
1176 | /* Wait for up to 4 seconds for child to terminate. | |
1177 | This seems to be the least effort way of timing out on reaping | |
1178 | its exit status. */ | |
1179 | struct timeval waitfor = {4, 0}; | |
41e4abd8 | 1180 | int sock = PL_dumper_fd; |
2aa47728 NC |
1181 | |
1182 | shutdown(sock, 1); | |
1183 | FD_ZERO(&rset); | |
1184 | FD_SET(sock, &rset); | |
1185 | select(sock + 1, &rset, NULL, NULL, &waitfor); | |
1186 | waitpid(child, &status, WNOHANG); | |
1187 | close(sock); | |
1188 | } | |
1189 | #endif | |
eba0f806 | 1190 | #endif |
bf9cdc68 | 1191 | PL_sv_count = 0; |
eba0f806 DM |
1192 | |
1193 | ||
56a2bab7 | 1194 | #if defined(PERLIO_LAYERS) |
3a1ee7e8 NIS |
1195 | /* No more IO - including error messages ! */ |
1196 | PerlIO_cleanup(aTHX); | |
1197 | #endif | |
1198 | ||
9f4bd222 NIS |
1199 | /* sv_undef needs to stay immortal until after PerlIO_cleanup |
1200 | as currently layers use it rather than Nullsv as a marker | |
1201 | for no arg - and will try and SvREFCNT_dec it. | |
1202 | */ | |
1203 | SvREFCNT(&PL_sv_undef) = 0; | |
1204 | SvREADONLY_off(&PL_sv_undef); | |
1205 | ||
3280af22 | 1206 | Safefree(PL_origfilename); |
bf9cdc68 | 1207 | PL_origfilename = Nullch; |
3280af22 | 1208 | Safefree(PL_reg_start_tmp); |
bf9cdc68 RG |
1209 | PL_reg_start_tmp = (char**)NULL; |
1210 | PL_reg_start_tmpl = 0; | |
43c5f42d | 1211 | Safefree(PL_reg_curpm); |
82ba1be6 | 1212 | Safefree(PL_reg_poscache); |
dd28f7bb | 1213 | free_tied_hv_pool(); |
3280af22 | 1214 | Safefree(PL_op_mask); |
cf36064f | 1215 | Safefree(PL_psig_ptr); |
bf9cdc68 | 1216 | PL_psig_ptr = (SV**)NULL; |
cf36064f | 1217 | Safefree(PL_psig_name); |
bf9cdc68 | 1218 | PL_psig_name = (SV**)NULL; |
2c2666fc | 1219 | Safefree(PL_bitcount); |
bf9cdc68 | 1220 | PL_bitcount = Nullch; |
ce08f86c | 1221 | Safefree(PL_psig_pend); |
bf9cdc68 RG |
1222 | PL_psig_pend = (int*)NULL; |
1223 | PL_formfeed = Nullsv; | |
6e72f9df | 1224 | nuke_stacks(); |
bf9cdc68 RG |
1225 | PL_tainting = FALSE; |
1226 | PL_taint_warn = FALSE; | |
3280af22 | 1227 | PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */ |
bf9cdc68 | 1228 | PL_debug = 0; |
ac27b0f5 | 1229 | |
a0d0e21e | 1230 | DEBUG_P(debprofdump()); |
d33b2eba | 1231 | |
e5dd39fc | 1232 | #ifdef USE_REENTRANT_API |
10bc17b6 | 1233 | Perl_reentrant_free(aTHX); |
e5dd39fc AB |
1234 | #endif |
1235 | ||
612f20c3 GS |
1236 | sv_free_arenas(); |
1237 | ||
fc36a67e | 1238 | /* As the absolutely last thing, free the non-arena SV for mess() */ |
1239 | ||
3280af22 | 1240 | if (PL_mess_sv) { |
f350b448 NC |
1241 | /* we know that type == SVt_PVMG */ |
1242 | ||
9c63abab | 1243 | /* it could have accumulated taint magic */ |
f350b448 NC |
1244 | MAGIC* mg; |
1245 | MAGIC* moremagic; | |
1246 | for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) { | |
1247 | moremagic = mg->mg_moremagic; | |
1248 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global | |
1249 | && mg->mg_len >= 0) | |
1250 | Safefree(mg->mg_ptr); | |
1251 | Safefree(mg); | |
9c63abab | 1252 | } |
f350b448 | 1253 | |
fc36a67e | 1254 | /* we know that type >= SVt_PV */ |
8bd4d4c5 | 1255 | SvPV_free(PL_mess_sv); |
3280af22 NIS |
1256 | Safefree(SvANY(PL_mess_sv)); |
1257 | Safefree(PL_mess_sv); | |
1258 | PL_mess_sv = Nullsv; | |
fc36a67e | 1259 | } |
31d77e54 | 1260 | return STATUS_NATIVE_EXPORT; |
79072805 LW |
1261 | } |
1262 | ||
954c1994 GS |
1263 | /* |
1264 | =for apidoc perl_free | |
1265 | ||
1266 | Releases a Perl interpreter. See L<perlembed>. | |
1267 | ||
1268 | =cut | |
1269 | */ | |
1270 | ||
79072805 | 1271 | void |
0cb96387 | 1272 | perl_free(pTHXx) |
79072805 | 1273 | { |
acfe0abc | 1274 | #if defined(WIN32) || defined(NETWARE) |
ce3e5b80 | 1275 | # if defined(PERL_IMPLICIT_SYS) |
acfe0abc GS |
1276 | # ifdef NETWARE |
1277 | void *host = nw_internal_host; | |
1278 | # else | |
1279 | void *host = w32_internal_host; | |
1280 | # endif | |
ce3e5b80 | 1281 | PerlMem_free(aTHXx); |
acfe0abc | 1282 | # ifdef NETWARE |
011f1a1a | 1283 | nw_delete_internal_host(host); |
acfe0abc GS |
1284 | # else |
1285 | win32_delete_internal_host(host); | |
1286 | # endif | |
1c0ca838 GS |
1287 | # else |
1288 | PerlMem_free(aTHXx); | |
1289 | # endif | |
acfe0abc GS |
1290 | #else |
1291 | PerlMem_free(aTHXx); | |
76e3520e | 1292 | #endif |
79072805 LW |
1293 | } |
1294 | ||
aebd1ac7 GA |
1295 | #if defined(USE_5005THREADS) || defined(USE_ITHREADS) |
1296 | /* provide destructors to clean up the thread key when libperl is unloaded */ | |
1297 | #ifndef WIN32 /* handled during DLL_PROCESS_DETACH in win32/perllib.c */ | |
1298 | ||
110d3f98 | 1299 | #if defined(__hpux) && __ux_version > 1020 && !defined(__GNUC__) |
aebd1ac7 GA |
1300 | #pragma fini "perl_fini" |
1301 | #endif | |
1302 | ||
0dbb1585 AL |
1303 | static void |
1304 | #if defined(__GNUC__) | |
1305 | __attribute__((destructor)) | |
aebd1ac7 | 1306 | #endif |
de009b76 | 1307 | perl_fini(void) |
aebd1ac7 | 1308 | { |
27da23d5 | 1309 | dVAR; |
aebd1ac7 GA |
1310 | if (PL_curinterp) |
1311 | FREE_THREAD_KEY; | |
1312 | } | |
1313 | ||
1314 | #endif /* WIN32 */ | |
1315 | #endif /* THREADS */ | |
1316 | ||
4b556e6c | 1317 | void |
864dbfa3 | 1318 | Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr) |
4b556e6c | 1319 | { |
3280af22 NIS |
1320 | Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry); |
1321 | PL_exitlist[PL_exitlistlen].fn = fn; | |
1322 | PL_exitlist[PL_exitlistlen].ptr = ptr; | |
1323 | ++PL_exitlistlen; | |
4b556e6c JD |
1324 | } |
1325 | ||
56cf6df8 RGS |
1326 | #ifdef HAS_PROCSELFEXE |
1327 | /* This is a function so that we don't hold on to MAXPATHLEN | |
1328 | bytes of stack longer than necessary | |
1329 | */ | |
1330 | STATIC void | |
e1ec3a88 | 1331 | S_procself_val(pTHX_ SV *sv, const char *arg0) |
56cf6df8 RGS |
1332 | { |
1333 | char buf[MAXPATHLEN]; | |
1334 | int len = readlink(PROCSELFEXE_PATH, buf, sizeof(buf) - 1); | |
1335 | ||
1336 | /* On Playstation2 Linux V1.0 (kernel 2.2.1) readlink(/proc/self/exe) | |
1337 | includes a spurious NUL which will cause $^X to fail in system | |
1338 | or backticks (this will prevent extensions from being built and | |
1339 | many tests from working). readlink is not meant to add a NUL. | |
1340 | Normal readlink works fine. | |
1341 | */ | |
1342 | if (len > 0 && buf[len-1] == '\0') { | |
1343 | len--; | |
1344 | } | |
1345 | ||
1346 | /* FreeBSD's implementation is acknowledged to be imperfect, sometimes | |
1347 | returning the text "unknown" from the readlink rather than the path | |
1348 | to the executable (or returning an error from the readlink). Any valid | |
1349 | path has a '/' in it somewhere, so use that to validate the result. | |
1350 | See http://www.freebsd.org/cgi/query-pr.cgi?pr=35703 | |
1351 | */ | |
1352 | if (len > 0 && memchr(buf, '/', len)) { | |
1353 | sv_setpvn(sv,buf,len); | |
1354 | } | |
1355 | else { | |
1356 | sv_setpv(sv,arg0); | |
1357 | } | |
1358 | } | |
1359 | #endif /* HAS_PROCSELFEXE */ | |
b7975bdd NC |
1360 | |
1361 | STATIC void | |
1362 | S_set_caret_X(pTHX) { | |
1363 | GV* tmpgv = gv_fetchpv("\030",TRUE, SVt_PV); /* $^X */ | |
1364 | if (tmpgv) { | |
1365 | #ifdef HAS_PROCSELFEXE | |
1366 | S_procself_val(aTHX_ GvSV(tmpgv), PL_origargv[0]); | |
1367 | #else | |
1368 | #ifdef OS2 | |
c69033f2 | 1369 | sv_setpv(GvSVn(tmpgv), os2_execname(aTHX)); |
b7975bdd | 1370 | #else |
c69033f2 | 1371 | sv_setpv(GvSVn(tmpgv),PL_origargv[0]); |
b7975bdd NC |
1372 | #endif |
1373 | #endif | |
1374 | } | |
1375 | } | |
1376 | ||
954c1994 GS |
1377 | /* |
1378 | =for apidoc perl_parse | |
1379 | ||
1380 | Tells a Perl interpreter to parse a Perl script. See L<perlembed>. | |
1381 | ||
1382 | =cut | |
1383 | */ | |
1384 | ||
79072805 | 1385 | int |
0cb96387 | 1386 | perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env) |
8d063cd8 | 1387 | { |
27da23d5 | 1388 | dVAR; |
6224f72b | 1389 | I32 oldscope; |
6224f72b | 1390 | int ret; |
db36c5a1 | 1391 | dJMPENV; |
8d063cd8 | 1392 | |
9d4ba2ae AL |
1393 | PERL_UNUSED_VAR(my_perl); |
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 | { |
9d4ba2ae | 1412 | const char * const 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 | 1688 | STRLEN len = strlen(s); |
aec46f14 | 1689 | const char * const p = savepvn(s, len); |
88fe16b2 | 1690 | incpush(p, TRUE, TRUE, FALSE, FALSE); |
0df16ed7 GS |
1691 | sv_catpvn(sv, "-I", 2); |
1692 | sv_catpvn(sv, p, len); | |
1693 | sv_catpvn(sv, " ", 1); | |
6224f72b | 1694 | Safefree(p); |
0df16ed7 GS |
1695 | } |
1696 | else | |
a67e862a | 1697 | Perl_croak(aTHX_ "No directory specified for -I"); |
6224f72b GS |
1698 | break; |
1699 | case 'P': | |
1700 | forbid_setid("-P"); | |
3280af22 | 1701 | PL_preprocess = TRUE; |
6224f72b GS |
1702 | s++; |
1703 | goto reswitch; | |
1704 | case 'S': | |
1705 | forbid_setid("-S"); | |
1706 | dosearch = TRUE; | |
1707 | s++; | |
1708 | goto reswitch; | |
1709 | case 'V': | |
7edfd0ef NC |
1710 | { |
1711 | SV *opts_prog; | |
1712 | ||
1713 | if (!PL_preambleav) | |
1714 | PL_preambleav = newAV(); | |
1715 | av_push(PL_preambleav, | |
1716 | newSVpv("use Config;",0)); | |
1717 | if (*++s != ':') { | |
1718 | STRLEN opts; | |
1719 | ||
1720 | opts_prog = newSVpv("print Config::myconfig(),",0); | |
6224f72b | 1721 | #ifdef VMS |
7edfd0ef | 1722 | sv_catpv(opts_prog,"\"\\nCharacteristics of this PERLSHR image: \\n\","); |
6224f72b | 1723 | #else |
7edfd0ef | 1724 | sv_catpv(opts_prog,"\"\\nCharacteristics of this binary (from libperl): \\n\","); |
6224f72b | 1725 | #endif |
7edfd0ef | 1726 | opts = SvCUR(opts_prog); |
efcaa95b | 1727 | |
7edfd0ef | 1728 | sv_catpv(opts_prog,"\" Compile-time options:"); |
6224f72b | 1729 | # ifdef DEBUGGING |
7edfd0ef | 1730 | sv_catpv(opts_prog," DEBUGGING"); |
6224f72b | 1731 | # endif |
85e1fcb9 SH |
1732 | # ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
1733 | sv_catpv(opts_prog," DEBUG_LEAKING_SCALARS_FORK_DUMP"); | |
1734 | # endif | |
1735 | # ifdef FAKE_THREADS | |
1736 | sv_catpv(opts_prog," FAKE_THREADS"); | |
1737 | # endif | |
6224f72b | 1738 | # ifdef MULTIPLICITY |
7edfd0ef | 1739 | sv_catpv(opts_prog," MULTIPLICITY"); |
6224f72b | 1740 | # endif |
85e1fcb9 SH |
1741 | # ifdef MYMALLOC |
1742 | sv_catpv(opts_prog," MYMALLOC"); | |
1743 | # endif | |
1744 | # ifdef PERL_DONT_CREATE_GVSV | |
1745 | sv_catpv(opts_prog," PERL_DONT_CREATE_GVSV"); | |
1746 | # endif | |
1747 | # ifdef PERL_GLOBAL_STRUCT | |
1748 | sv_catpv(opts_prog," PERL_GLOBAL_STRUCT"); | |
1749 | # endif | |
1750 | # ifdef PERL_IMPLICIT_CONTEXT | |
1751 | sv_catpv(opts_prog," PERL_IMPLICIT_CONTEXT"); | |
1752 | # endif | |
1753 | # ifdef PERL_IMPLICIT_SYS | |
1754 | sv_catpv(opts_prog," PERL_IMPLICIT_SYS"); | |
1755 | # endif | |
1756 | # ifdef PERL_MALLOC_WRAP | |
1757 | sv_catpv(opts_prog," PERL_MALLOC_WRAP"); | |
1758 | # endif | |
1759 | # ifdef PERL_NEED_APPCTX | |
1760 | sv_catpv(opts_prog," PERL_NEED_APPCTX"); | |
1761 | # endif | |
1762 | # ifdef PERL_NEED_TIMESBASE | |
1763 | sv_catpv(opts_prog," PERL_NEED_TIMESBASE"); | |
1764 | # endif | |
1765 | # ifdef PERL_OLD_COPY_ON_WRITE | |
1766 | sv_catpv(opts_prog," PERL_OLD_COPY_ON_WRITE"); | |
1767 | # endif | |
1768 | # ifdef PL_OP_SLAB_ALLOC | |
1769 | sv_catpv(opts_prog," PL_OP_SLAB_ALLOC"); | |
1770 | # endif | |
1771 | # ifdef THREADS_HAVE_PIDS | |
1772 | sv_catpv(opts_prog," THREADS_HAVE_PIDS"); | |
1773 | # endif | |
4d1ff10f | 1774 | # ifdef USE_5005THREADS |
7edfd0ef | 1775 | sv_catpv(opts_prog," USE_5005THREADS"); |
b363f7ed | 1776 | # endif |
85e1fcb9 SH |
1777 | # ifdef USE_64_BIT_ALL |
1778 | sv_catpv(opts_prog," USE_64_BIT_ALL"); | |
ac5e8965 | 1779 | # endif |
10cc9d2a | 1780 | # ifdef USE_64_BIT_INT |
7edfd0ef | 1781 | sv_catpv(opts_prog," USE_64_BIT_INT"); |
10cc9d2a | 1782 | # endif |
85e1fcb9 SH |
1783 | # ifdef USE_ITHREADS |
1784 | sv_catpv(opts_prog," USE_ITHREADS"); | |
1785 | # endif | |
1786 | # ifdef USE_LARGE_FILES | |
1787 | sv_catpv(opts_prog," USE_LARGE_FILES"); | |
ac5e8965 JH |
1788 | # endif |
1789 | # ifdef USE_LONG_DOUBLE | |
7edfd0ef | 1790 | sv_catpv(opts_prog," USE_LONG_DOUBLE"); |
ac5e8965 | 1791 | # endif |
85e1fcb9 SH |
1792 | # ifdef USE_PERLIO |
1793 | sv_catpv(opts_prog," USE_PERLIO"); | |
53430762 | 1794 | # endif |
85e1fcb9 SH |
1795 | # ifdef USE_REENTRANT_API |
1796 | sv_catpv(opts_prog," USE_REENTRANT_API"); | |
1797 | # endif | |
1798 | # ifdef USE_SFIO | |
1799 | sv_catpv(opts_prog," USE_SFIO"); | |
ac5e8965 | 1800 | # endif |
20ef40cf | 1801 | # ifdef USE_SITECUSTOMIZE |
7edfd0ef | 1802 | sv_catpv(opts_prog," USE_SITECUSTOMIZE"); |
20ef40cf | 1803 | # endif |
85e1fcb9 SH |
1804 | # ifdef USE_SOCKS |
1805 | sv_catpv(opts_prog," USE_SOCKS"); | |
b363f7ed | 1806 | # endif |
efcaa95b | 1807 | |
7edfd0ef NC |
1808 | while (SvCUR(opts_prog) > opts+76) { |
1809 | /* find last space after "options: " and before col 76 | |
1810 | */ | |
efcaa95b | 1811 | |
7edfd0ef NC |
1812 | const char *space; |
1813 | char *pv = SvPV_nolen(opts_prog); | |
1814 | const char c = pv[opts+76]; | |
1815 | pv[opts+76] = '\0'; | |
1816 | space = strrchr(pv+opts+26, ' '); | |
1817 | pv[opts+76] = c; | |
1818 | if (!space) break; /* "Can't happen" */ | |
efcaa95b | 1819 | |
7edfd0ef | 1820 | /* break the line before that space */ |
efcaa95b | 1821 | |
7edfd0ef NC |
1822 | opts = space - pv; |
1823 | sv_insert(opts_prog, opts, 0, | |
1824 | "\\n ", 25); | |
1825 | } | |
efcaa95b | 1826 | |
7edfd0ef | 1827 | sv_catpv(opts_prog,"\\n\","); |
b363f7ed | 1828 | |
6224f72b | 1829 | #if defined(LOCAL_PATCH_COUNT) |
7edfd0ef NC |
1830 | if (LOCAL_PATCH_COUNT > 0) { |
1831 | int i; | |
1832 | sv_catpv(opts_prog, | |
1833 | "\" Locally applied patches:\\n\","); | |
1834 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { | |
1835 | if (PL_localpatches[i]) | |
1836 | Perl_sv_catpvf(aTHX_ opts_prog,"q%c\t%s\n%c,", | |
1837 | 0, PL_localpatches[i], 0); | |
1838 | } | |
6224f72b | 1839 | } |
6224f72b | 1840 | #endif |
7edfd0ef NC |
1841 | Perl_sv_catpvf(aTHX_ opts_prog, |
1842 | "\" Built under %s\\n\"",OSNAME); | |
6224f72b GS |
1843 | #ifdef __DATE__ |
1844 | # ifdef __TIME__ | |
7edfd0ef NC |
1845 | Perl_sv_catpvf(aTHX_ opts_prog, |
1846 | ",\" Compiled at %s %s\\n\"",__DATE__, | |
1847 | __TIME__); | |
6224f72b | 1848 | # else |
7edfd0ef NC |
1849 | Perl_sv_catpvf(aTHX_ opts_prog,",\" Compiled on %s\\n\"", |
1850 | __DATE__); | |
6224f72b GS |
1851 | # endif |
1852 | #endif | |
7edfd0ef NC |
1853 | sv_catpv(opts_prog, "; $\"=\"\\n \"; " |
1854 | "@env = map { \"$_=\\\"$ENV{$_}\\\"\" } " | |
1855 | "sort grep {/^PERL/} keys %ENV; "); | |
69fcd688 | 1856 | #ifdef __CYGWIN__ |
7edfd0ef NC |
1857 | sv_catpv(opts_prog, |
1858 | "push @env, \"CYGWIN=\\\"$ENV{CYGWIN}\\\"\";"); | |
69fcd688 | 1859 | #endif |
7edfd0ef NC |
1860 | sv_catpv(opts_prog, |
1861 | "print \" \\%ENV:\\n @env\\n\" if @env;" | |
1862 | "print \" \\@INC:\\n @INC\\n\";"); | |
1863 | } | |
1864 | else { | |
1865 | ++s; | |
1866 | opts_prog = Perl_newSVpvf(aTHX_ | |
1867 | "Config::config_vars(qw%c%s%c)", | |
1868 | 0, s, 0); | |
1869 | s += strlen(s); | |
1870 | } | |
1871 | av_push(PL_preambleav, opts_prog); | |
1872 | /* don't look for script or read stdin */ | |
1873 | scriptname = BIT_BUCKET; | |
1874 | goto reswitch; | |
6224f72b | 1875 | } |
6224f72b | 1876 | case 'x': |
3280af22 | 1877 | PL_doextract = TRUE; |
6224f72b GS |
1878 | s++; |
1879 | if (*s) | |
f4c556ac | 1880 | cddir = s; |
6224f72b GS |
1881 | break; |
1882 | case 0: | |
1883 | break; | |
1884 | case '-': | |
1885 | if (!*++s || isSPACE(*s)) { | |
1886 | argc--,argv++; | |
1887 | goto switch_end; | |
1888 | } | |
1889 | /* catch use of gnu style long options */ | |
1890 | if (strEQ(s, "version")) { | |
dd374669 | 1891 | s = (char *)"v"; |
6224f72b GS |
1892 | goto reswitch; |
1893 | } | |
1894 | if (strEQ(s, "help")) { | |
dd374669 | 1895 | s = (char *)"h"; |
6224f72b GS |
1896 | goto reswitch; |
1897 | } | |
1898 | s--; | |
1899 | /* FALL THROUGH */ | |
1900 | default: | |
cea2e8a9 | 1901 | Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s); |
8d063cd8 LW |
1902 | } |
1903 | } | |
6224f72b | 1904 | switch_end: |
54310121 | 1905 | |
f675dbe5 CB |
1906 | if ( |
1907 | #ifndef SECURE_INTERNAL_GETENV | |
1908 | !PL_tainting && | |
1909 | #endif | |
cf756827 | 1910 | (s = PerlEnv_getenv("PERL5OPT"))) |
0df16ed7 | 1911 | { |
e1ec3a88 | 1912 | const char *popt = s; |
74288ac8 GS |
1913 | while (isSPACE(*s)) |
1914 | s++; | |
317ea90d | 1915 | if (*s == '-' && *(s+1) == 'T') { |
22f7c9c9 | 1916 | CHECK_MALLOC_TOO_LATE_FOR('T'); |
74288ac8 | 1917 | PL_tainting = TRUE; |
317ea90d MS |
1918 | PL_taint_warn = FALSE; |
1919 | } | |
74288ac8 | 1920 | else { |
cf756827 | 1921 | char *popt_copy = Nullch; |
74288ac8 | 1922 | while (s && *s) { |
4ea8f8fb | 1923 | char *d; |
74288ac8 GS |
1924 | while (isSPACE(*s)) |
1925 | s++; | |
1926 | if (*s == '-') { | |
1927 | s++; | |
1928 | if (isSPACE(*s)) | |
1929 | continue; | |
1930 | } | |
4ea8f8fb | 1931 | d = s; |
74288ac8 GS |
1932 | if (!*s) |
1933 | break; | |
06492da6 | 1934 | if (!strchr("DIMUdmtwA", *s)) |
cea2e8a9 | 1935 | Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s); |
4ea8f8fb MS |
1936 | while (++s && *s) { |
1937 | if (isSPACE(*s)) { | |
cf756827 GS |
1938 | if (!popt_copy) { |
1939 | popt_copy = SvPVX(sv_2mortal(newSVpv(popt,0))); | |
1940 | s = popt_copy + (s - popt); | |
1941 | d = popt_copy + (d - popt); | |
1942 | } | |
4ea8f8fb MS |
1943 | *s++ = '\0'; |
1944 | break; | |
1945 | } | |
1946 | } | |
1c4db469 | 1947 | if (*d == 't') { |
317ea90d MS |
1948 | if( !PL_tainting ) { |
1949 | PL_taint_warn = TRUE; | |
1950 | PL_tainting = TRUE; | |
1951 | } | |
1c4db469 RGS |
1952 | } else { |
1953 | moreswitches(d); | |
1954 | } | |
6224f72b | 1955 | } |
6224f72b GS |
1956 | } |
1957 | } | |
a0d0e21e | 1958 | |
20ef40cf GA |
1959 | #ifdef USE_SITECUSTOMIZE |
1960 | if (!minus_f) { | |
1961 | if (!PL_preambleav) | |
1962 | PL_preambleav = newAV(); | |
1963 | av_unshift(PL_preambleav, 1); | |
1964 | (void)av_store(PL_preambleav, 0, Perl_newSVpvf(aTHX_ "BEGIN { do '%s/sitecustomize.pl' }", SITELIB_EXP)); | |
1965 | } | |
1966 | #endif | |
1967 | ||
317ea90d MS |
1968 | if (PL_taint_warn && PL_dowarn != G_WARN_ALL_OFF) { |
1969 | PL_compiling.cop_warnings = newSVpvn(WARN_TAINTstring, WARNsize); | |
1970 | } | |
1971 | ||
6224f72b GS |
1972 | if (!scriptname) |
1973 | scriptname = argv[0]; | |
3280af22 | 1974 | if (PL_e_script) { |
6224f72b GS |
1975 | argc++,argv--; |
1976 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ | |
1977 | } | |
1978 | else if (scriptname == Nullch) { | |
1979 | #ifdef MSDOS | |
1980 | if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) ) | |
1981 | moreswitches("h"); | |
1982 | #endif | |
1983 | scriptname = "-"; | |
1984 | } | |
1985 | ||
b7975bdd NC |
1986 | /* Set $^X early so that it can be used for relocatable paths in @INC */ |
1987 | assert (!PL_tainted); | |
1988 | TAINT; | |
1989 | S_set_caret_X(aTHX); | |
1990 | TAINT_NOT; | |
6224f72b GS |
1991 | init_perllib(); |
1992 | ||
c5cccb17 | 1993 | open_script(scriptname,dosearch,sv); |
6224f72b | 1994 | |
c5cccb17 | 1995 | validate_suid(validarg, scriptname); |
6224f72b | 1996 | |
64ca3a65 | 1997 | #ifndef PERL_MICRO |
0b5b802d GS |
1998 | #if defined(SIGCHLD) || defined(SIGCLD) |
1999 | { | |
2000 | #ifndef SIGCHLD | |
2001 | # define SIGCHLD SIGCLD | |
2002 | #endif | |
2003 | Sighandler_t sigstate = rsignal_state(SIGCHLD); | |
2004 | if (sigstate == SIG_IGN) { | |
2005 | if (ckWARN(WARN_SIGNAL)) | |
9014280d | 2006 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), |
0b5b802d GS |
2007 | "Can't ignore signal CHLD, forcing to default"); |
2008 | (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL); | |
2009 | } | |
2010 | } | |
2011 | #endif | |
64ca3a65 | 2012 | #endif |
0b5b802d | 2013 | |
bf4acbe4 GS |
2014 | #ifdef MACOS_TRADITIONAL |
2015 | if (PL_doextract || gMacPerl_AlwaysExtract) { | |
2016 | #else | |
f4c556ac | 2017 | if (PL_doextract) { |
bf4acbe4 | 2018 | #endif |
6224f72b | 2019 | find_beginning(); |
dd374669 | 2020 | if (cddir && PerlDir_chdir( (char *)cddir ) < 0) |
f4c556ac GS |
2021 | Perl_croak(aTHX_ "Can't chdir to %s",cddir); |
2022 | ||
2023 | } | |
6224f72b | 2024 | |
3280af22 NIS |
2025 | PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0); |
2026 | sv_upgrade((SV *)PL_compcv, SVt_PVCV); | |
2027 | CvUNIQUE_on(PL_compcv); | |
2028 | ||
dd2155a4 | 2029 | CvPADLIST(PL_compcv) = pad_new(0); |
4d1ff10f | 2030 | #ifdef USE_5005THREADS |
533c011a | 2031 | CvOWNER(PL_compcv) = 0; |
a02a5408 | 2032 | Newx(CvMUTEXP(PL_compcv), 1, perl_mutex); |
533c011a | 2033 | MUTEX_INIT(CvMUTEXP(PL_compcv)); |
4d1ff10f | 2034 | #endif /* USE_5005THREADS */ |
6224f72b | 2035 | |
0c4f7ff0 | 2036 | boot_core_PerlIO(); |
6224f72b | 2037 | boot_core_UNIVERSAL(); |
09bef843 | 2038 | boot_core_xsutils(); |
6224f72b GS |
2039 | |
2040 | if (xsinit) | |
acfe0abc | 2041 | (*xsinit)(aTHX); /* in case linked C routines want magical variables */ |
64ca3a65 | 2042 | #ifndef PERL_MICRO |
ed79a026 | 2043 | #if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(EPOC) |
c5be433b | 2044 | init_os_extras(); |
6224f72b | 2045 | #endif |
64ca3a65 | 2046 | #endif |
6224f72b | 2047 | |
29209bc5 | 2048 | #ifdef USE_SOCKS |
1b9c9cf5 DH |
2049 | # ifdef HAS_SOCKS5_INIT |
2050 | socks5_init(argv[0]); | |
2051 | # else | |
29209bc5 | 2052 | SOCKSinit(argv[0]); |
1b9c9cf5 | 2053 | # endif |
ac27b0f5 | 2054 | #endif |
29209bc5 | 2055 | |
6224f72b GS |
2056 | init_predump_symbols(); |
2057 | /* init_postdump_symbols not currently designed to be called */ | |
2058 | /* more than once (ENV isn't cleared first, for example) */ | |
2059 | /* But running with -u leaves %ENV & @ARGV undefined! XXX */ | |
3280af22 | 2060 | if (!PL_do_undump) |
6224f72b GS |
2061 | init_postdump_symbols(argc,argv,env); |
2062 | ||
27da23d5 JH |
2063 | /* PL_unicode is turned on by -C, or by $ENV{PERL_UNICODE}, |
2064 | * or explicitly in some platforms. | |
085a54d9 | 2065 | * locale.c:Perl_init_i18nl10n() if the environment |
a05d7ebb | 2066 | * look like the user wants to use UTF-8. */ |
27da23d5 JH |
2067 | #if defined(SYMBIAN) |
2068 | PL_unicode = PERL_UNICODE_STD_FLAG; /* See PERL_SYMBIAN_CONSOLE_UTF8. */ | |
2069 | #endif | |
06e66572 JH |
2070 | if (PL_unicode) { |
2071 | /* Requires init_predump_symbols(). */ | |
a05d7ebb | 2072 | if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) { |
06e66572 JH |
2073 | IO* io; |
2074 | PerlIO* fp; | |
2075 | SV* sv; | |
2076 | ||
a05d7ebb | 2077 | /* Turn on UTF-8-ness on STDIN, STDOUT, STDERR |
06e66572 | 2078 | * and the default open disciplines. */ |
a05d7ebb JH |
2079 | if ((PL_unicode & PERL_UNICODE_STDIN_FLAG) && |
2080 | PL_stdingv && (io = GvIO(PL_stdingv)) && | |
2081 | (fp = IoIFP(io))) | |
2082 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2083 | if ((PL_unicode & PERL_UNICODE_STDOUT_FLAG) && | |
2084 | PL_defoutgv && (io = GvIO(PL_defoutgv)) && | |
2085 | (fp = IoOFP(io))) | |
2086 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2087 | if ((PL_unicode & PERL_UNICODE_STDERR_FLAG) && | |
2088 | PL_stderrgv && (io = GvIO(PL_stderrgv)) && | |
2089 | (fp = IoOFP(io))) | |
2090 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2091 | if ((PL_unicode & PERL_UNICODE_INOUT_FLAG) && | |
2092 | (sv = GvSV(gv_fetchpv("\017PEN", TRUE, SVt_PV)))) { | |
2093 | U32 in = PL_unicode & PERL_UNICODE_IN_FLAG; | |
2094 | U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG; | |
2095 | if (in) { | |
2096 | if (out) | |
2097 | sv_setpvn(sv, ":utf8\0:utf8", 11); | |
2098 | else | |
2099 | sv_setpvn(sv, ":utf8\0", 6); | |
2100 | } | |
2101 | else if (out) | |
2102 | sv_setpvn(sv, "\0:utf8", 6); | |
2103 | SvSETMAGIC(sv); | |
2104 | } | |
b310b053 JH |
2105 | } |
2106 | } | |
2107 | ||
4ffa73a3 JH |
2108 | if ((s = PerlEnv_getenv("PERL_SIGNALS"))) { |
2109 | if (strEQ(s, "unsafe")) | |
2110 | PL_signals |= PERL_SIGNALS_UNSAFE_FLAG; | |
2111 | else if (strEQ(s, "safe")) | |
2112 | PL_signals &= ~PERL_SIGNALS_UNSAFE_FLAG; | |
2113 | else | |
2114 | Perl_croak(aTHX_ "PERL_SIGNALS illegal: \"%s\"", s); | |
2115 | } | |
2116 | ||
6224f72b GS |
2117 | init_lexer(); |
2118 | ||
2119 | /* now parse the script */ | |
2120 | ||
93189314 | 2121 | SETERRNO(0,SS_NORMAL); |
3280af22 | 2122 | PL_error_count = 0; |
bf4acbe4 GS |
2123 | #ifdef MACOS_TRADITIONAL |
2124 | if (gMacPerl_SyntaxError = (yyparse() || PL_error_count)) { | |
2125 | if (PL_minus_c) | |
2126 | Perl_croak(aTHX_ "%s had compilation errors.\n", MacPerl_MPWFileName(PL_origfilename)); | |
2127 | else { | |
2128 | Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", | |
2129 | MacPerl_MPWFileName(PL_origfilename)); | |
2130 | } | |
2131 | } | |
2132 | #else | |
3280af22 NIS |
2133 | if (yyparse() || PL_error_count) { |
2134 | if (PL_minus_c) | |
cea2e8a9 | 2135 | Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename); |
6224f72b | 2136 | else { |
cea2e8a9 | 2137 | Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", |
097ee67d | 2138 | PL_origfilename); |
6224f72b GS |
2139 | } |
2140 | } | |
bf4acbe4 | 2141 | #endif |
57843af0 | 2142 | CopLINE_set(PL_curcop, 0); |
3280af22 NIS |
2143 | PL_curstash = PL_defstash; |
2144 | PL_preprocess = FALSE; | |
2145 | if (PL_e_script) { | |
2146 | SvREFCNT_dec(PL_e_script); | |
2147 | PL_e_script = Nullsv; | |
6224f72b GS |
2148 | } |
2149 | ||
3280af22 | 2150 | if (PL_do_undump) |
6224f72b GS |
2151 | my_unexec(); |
2152 | ||
57843af0 GS |
2153 | if (isWARN_ONCE) { |
2154 | SAVECOPFILE(PL_curcop); | |
2155 | SAVECOPLINE(PL_curcop); | |
3280af22 | 2156 | gv_check(PL_defstash); |
57843af0 | 2157 | } |
6224f72b GS |
2158 | |
2159 | LEAVE; | |
2160 | FREETMPS; | |
2161 | ||
2162 | #ifdef MYMALLOC | |
2163 | if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) | |
2164 | dump_mstats("after compilation:"); | |
2165 | #endif | |
2166 | ||
2167 | ENTER; | |
3280af22 | 2168 | PL_restartop = 0; |
312caa8e | 2169 | return NULL; |
6224f72b GS |
2170 | } |
2171 | ||
954c1994 GS |
2172 | /* |
2173 | =for apidoc perl_run | |
2174 | ||
2175 | Tells a Perl interpreter to run. See L<perlembed>. | |
2176 | ||
2177 | =cut | |
2178 | */ | |
2179 | ||
6224f72b | 2180 | int |
0cb96387 | 2181 | perl_run(pTHXx) |
6224f72b | 2182 | { |
6224f72b | 2183 | I32 oldscope; |
14dd3ad8 | 2184 | int ret = 0; |
db36c5a1 | 2185 | dJMPENV; |
6224f72b | 2186 | |
9d4ba2ae AL |
2187 | PERL_UNUSED_ARG(my_perl); |
2188 | ||
3280af22 | 2189 | oldscope = PL_scopestack_ix; |
96e176bf CL |
2190 | #ifdef VMS |
2191 | VMSISH_HUSHED = 0; | |
2192 | #endif | |
6224f72b | 2193 | |
14dd3ad8 | 2194 | JMPENV_PUSH(ret); |
6224f72b GS |
2195 | switch (ret) { |
2196 | case 1: | |
2197 | cxstack_ix = -1; /* start context stack again */ | |
312caa8e | 2198 | goto redo_body; |
14dd3ad8 | 2199 | case 0: /* normal completion */ |
14dd3ad8 GS |
2200 | redo_body: |
2201 | run_body(oldscope); | |
14dd3ad8 GS |
2202 | /* FALL THROUGH */ |
2203 | case 2: /* my_exit() */ | |
3280af22 | 2204 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
2205 | LEAVE; |
2206 | FREETMPS; | |
3280af22 | 2207 | PL_curstash = PL_defstash; |
3a1ee7e8 | 2208 | if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) && |
31d77e54 AB |
2209 | PL_endav && !PL_minus_c) |
2210 | call_list(oldscope, PL_endav); | |
6224f72b GS |
2211 | #ifdef MYMALLOC |
2212 | if (PerlEnv_getenv("PERL_DEBUG_MSTATS")) | |
2213 | dump_mstats("after execution: "); | |
2214 | #endif | |
14dd3ad8 GS |
2215 | ret = STATUS_NATIVE_EXPORT; |
2216 | break; | |
6224f72b | 2217 | case 3: |
312caa8e CS |
2218 | if (PL_restartop) { |
2219 | POPSTACK_TO(PL_mainstack); | |
2220 | goto redo_body; | |
6224f72b | 2221 | } |
bf49b057 | 2222 | PerlIO_printf(Perl_error_log, "panic: restartop\n"); |
312caa8e | 2223 | FREETMPS; |
14dd3ad8 GS |
2224 | ret = 1; |
2225 | break; | |
6224f72b GS |
2226 | } |
2227 | ||
14dd3ad8 GS |
2228 | JMPENV_POP; |
2229 | return ret; | |
312caa8e CS |
2230 | } |
2231 | ||
14dd3ad8 | 2232 | |
dd374669 | 2233 | STATIC void |
14dd3ad8 GS |
2234 | S_run_body(pTHX_ I32 oldscope) |
2235 | { | |
6224f72b | 2236 | DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n", |
3280af22 | 2237 | PL_sawampersand ? "Enabling" : "Omitting")); |
6224f72b | 2238 | |
3280af22 | 2239 | if (!PL_restartop) { |
6224f72b | 2240 | DEBUG_x(dump_all()); |
ecae49c0 NC |
2241 | if (!DEBUG_q_TEST) |
2242 | PERL_DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); | |
b900a521 JH |
2243 | DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%"UVxf"\n", |
2244 | PTR2UV(thr))); | |
6224f72b | 2245 | |
3280af22 | 2246 | if (PL_minus_c) { |
bf4acbe4 | 2247 | #ifdef MACOS_TRADITIONAL |
e69a2255 JH |
2248 | PerlIO_printf(Perl_error_log, "%s%s syntax OK\n", |
2249 | (gMacPerl_ErrorFormat ? "# " : ""), | |
2250 | MacPerl_MPWFileName(PL_origfilename)); | |
bf4acbe4 | 2251 | #else |
bf49b057 | 2252 | PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename); |
bf4acbe4 | 2253 | #endif |
6224f72b GS |
2254 | my_exit(0); |
2255 | } | |
3280af22 | 2256 | if (PERLDB_SINGLE && PL_DBsingle) |
ac27b0f5 | 2257 | sv_setiv(PL_DBsingle, 1); |
3280af22 NIS |
2258 | if (PL_initav) |
2259 | call_list(oldscope, PL_initav); | |
6224f72b GS |
2260 | } |
2261 | ||
2262 | /* do it */ | |
2263 | ||
3280af22 | 2264 | if (PL_restartop) { |
533c011a | 2265 | PL_op = PL_restartop; |
3280af22 | 2266 | PL_restartop = 0; |
cea2e8a9 | 2267 | CALLRUNOPS(aTHX); |
6224f72b | 2268 | } |
3280af22 NIS |
2269 | else if (PL_main_start) { |
2270 | CvDEPTH(PL_main_cv) = 1; | |
533c011a | 2271 | PL_op = PL_main_start; |
cea2e8a9 | 2272 | CALLRUNOPS(aTHX); |
6224f72b | 2273 | } |
f6b3007c JH |
2274 | my_exit(0); |
2275 | /* NOTREACHED */ | |
6224f72b GS |
2276 | } |
2277 | ||
954c1994 | 2278 | /* |
ccfc67b7 JH |
2279 | =head1 SV Manipulation Functions |
2280 | ||
954c1994 GS |
2281 | =for apidoc p||get_sv |
2282 | ||
2283 | Returns the SV of the specified Perl scalar. If C<create> is set and the | |
2284 | Perl variable does not exist then it will be created. If C<create> is not | |
2285 | set and the variable does not exist then NULL is returned. | |
2286 | ||
2287 | =cut | |
2288 | */ | |
2289 | ||
6224f72b | 2290 | SV* |
864dbfa3 | 2291 | Perl_get_sv(pTHX_ const char *name, I32 create) |
6224f72b GS |
2292 | { |
2293 | GV *gv; | |
4d1ff10f | 2294 | #ifdef USE_5005THREADS |
6224f72b GS |
2295 | if (name[1] == '\0' && !isALPHA(name[0])) { |
2296 | PADOFFSET tmp = find_threadsv(name); | |
411caa50 | 2297 | if (tmp != NOT_IN_PAD) |
6224f72b | 2298 | return THREADSV(tmp); |
6224f72b | 2299 | } |
4d1ff10f | 2300 | #endif /* USE_5005THREADS */ |
6224f72b GS |
2301 | gv = gv_fetchpv(name, create, SVt_PV); |
2302 | if (gv) | |
2303 | return GvSV(gv); | |
2304 | return Nullsv; | |
2305 | } | |
2306 | ||
954c1994 | 2307 | /* |
ccfc67b7 JH |
2308 | =head1 Array Manipulation Functions |
2309 | ||
954c1994 GS |
2310 | =for apidoc p||get_av |
2311 | ||
2312 | Returns the AV of the specified Perl array. If C<create> is set and the | |
2313 | Perl variable does not exist then it will be created. If C<create> is not | |
2314 | set and the variable does not exist then NULL is returned. | |
2315 | ||
2316 | =cut | |
2317 | */ | |
2318 | ||
6224f72b | 2319 | AV* |
864dbfa3 | 2320 | Perl_get_av(pTHX_ const char *name, I32 create) |
6224f72b GS |
2321 | { |
2322 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); | |
2323 | if (create) | |
2324 | return GvAVn(gv); | |
2325 | if (gv) | |
2326 | return GvAV(gv); | |
2327 | return Nullav; | |
2328 | } | |
2329 | ||
954c1994 | 2330 | /* |
ccfc67b7 JH |
2331 | =head1 Hash Manipulation Functions |
2332 | ||
954c1994 GS |
2333 | =for apidoc p||get_hv |
2334 | ||
2335 | Returns the HV of the specified Perl hash. If C<create> is set and the | |
2336 | Perl variable does not exist then it will be created. If C<create> is not | |
2337 | set and the variable does not exist then NULL is returned. | |
2338 | ||
2339 | =cut | |
2340 | */ | |
2341 | ||
6224f72b | 2342 | HV* |
864dbfa3 | 2343 | Perl_get_hv(pTHX_ const char *name, I32 create) |
6224f72b | 2344 | { |
890ce7af | 2345 | GV* const gv = gv_fetchpv(name, create, SVt_PVHV); |
a0d0e21e LW |
2346 | if (create) |
2347 | return GvHVn(gv); | |
2348 | if (gv) | |
2349 | return GvHV(gv); | |
2350 | return Nullhv; | |
2351 | } | |
2352 | ||
954c1994 | 2353 | /* |
ccfc67b7 JH |
2354 | =head1 CV Manipulation Functions |
2355 | ||
954c1994 GS |
2356 | =for apidoc p||get_cv |
2357 | ||
2358 | Returns the CV of the specified Perl subroutine. If C<create> is set and | |
2359 | the Perl subroutine does not exist then it will be declared (which has the | |
2360 | same effect as saying C<sub name;>). If C<create> is not set and the | |
2361 | subroutine does not exist then NULL is returned. | |
2362 | ||
2363 | =cut | |
2364 | */ | |
2365 | ||
a0d0e21e | 2366 | CV* |
864dbfa3 | 2367 | Perl_get_cv(pTHX_ const char *name, I32 create) |
a0d0e21e LW |
2368 | { |
2369 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); | |
b099ddc0 | 2370 | /* XXX unsafe for threads if eval_owner isn't held */ |
f6ec51f7 GS |
2371 | /* XXX this is probably not what they think they're getting. |
2372 | * It has the same effect as "sub name;", i.e. just a forward | |
2373 | * declaration! */ | |
8ebc5c01 | 2374 | if (create && !GvCVu(gv)) |
774d564b | 2375 | return newSUB(start_subparse(FALSE, 0), |
a0d0e21e | 2376 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
4633a7c4 | 2377 | Nullop, |
a0d0e21e LW |
2378 | Nullop); |
2379 | if (gv) | |
8ebc5c01 | 2380 | return GvCVu(gv); |
a0d0e21e LW |
2381 | return Nullcv; |
2382 | } | |
2383 | ||
79072805 LW |
2384 | /* Be sure to refetch the stack pointer after calling these routines. */ |
2385 | ||
954c1994 | 2386 | /* |
ccfc67b7 JH |
2387 | |
2388 | =head1 Callback Functions | |
2389 | ||
954c1994 GS |
2390 | =for apidoc p||call_argv |
2391 | ||
2392 | Performs a callback to the specified Perl sub. See L<perlcall>. | |
2393 | ||
2394 | =cut | |
2395 | */ | |
2396 | ||
a0d0e21e | 2397 | I32 |
8f42b153 | 2398 | Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv) |
ac27b0f5 | 2399 | |
8ac85365 NIS |
2400 | /* See G_* flags in cop.h */ |
2401 | /* null terminated arg list */ | |
8990e307 | 2402 | { |
a0d0e21e | 2403 | dSP; |
8990e307 | 2404 | |
924508f0 | 2405 | PUSHMARK(SP); |
a0d0e21e | 2406 | if (argv) { |
8990e307 | 2407 | while (*argv) { |
a0d0e21e | 2408 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 LW |
2409 | argv++; |
2410 | } | |
a0d0e21e | 2411 | PUTBACK; |
8990e307 | 2412 | } |
864dbfa3 | 2413 | return call_pv(sub_name, flags); |
8990e307 LW |
2414 | } |
2415 | ||
954c1994 GS |
2416 | /* |
2417 | =for apidoc p||call_pv | |
2418 | ||
2419 | Performs a callback to the specified Perl sub. See L<perlcall>. | |
2420 | ||
2421 | =cut | |
2422 | */ | |
2423 | ||
a0d0e21e | 2424 | I32 |
864dbfa3 | 2425 | Perl_call_pv(pTHX_ const char *sub_name, I32 flags) |
8ac85365 NIS |
2426 | /* name of the subroutine */ |
2427 | /* See G_* flags in cop.h */ | |
a0d0e21e | 2428 | { |
864dbfa3 | 2429 | return call_sv((SV*)get_cv(sub_name, TRUE), flags); |
a0d0e21e LW |
2430 | } |
2431 | ||
954c1994 GS |
2432 | /* |
2433 | =for apidoc p||call_method | |
2434 | ||
2435 | Performs a callback to the specified Perl method. The blessed object must | |
2436 | be on the stack. See L<perlcall>. | |
2437 | ||
2438 | =cut | |
2439 | */ | |
2440 | ||
a0d0e21e | 2441 | I32 |
864dbfa3 | 2442 | Perl_call_method(pTHX_ const char *methname, I32 flags) |
8ac85365 NIS |
2443 | /* name of the subroutine */ |
2444 | /* See G_* flags in cop.h */ | |
a0d0e21e | 2445 | { |
968b3946 | 2446 | return call_sv(sv_2mortal(newSVpv(methname,0)), flags | G_METHOD); |
a0d0e21e LW |
2447 | } |
2448 | ||
2449 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
954c1994 GS |
2450 | /* |
2451 | =for apidoc p||call_sv | |
2452 | ||
2453 | Performs a callback to the Perl sub whose name is in the SV. See | |
2454 | L<perlcall>. | |
2455 | ||
2456 | =cut | |
2457 | */ | |
2458 | ||
a0d0e21e | 2459 | I32 |
864dbfa3 | 2460 | Perl_call_sv(pTHX_ SV *sv, I32 flags) |
8ac85365 | 2461 | /* See G_* flags in cop.h */ |
a0d0e21e | 2462 | { |
27da23d5 | 2463 | dVAR; dSP; |
a0d0e21e | 2464 | LOGOP myop; /* fake syntax tree node */ |
968b3946 | 2465 | UNOP method_op; |
aa689395 | 2466 | I32 oldmark; |
13689cfe | 2467 | volatile I32 retval = 0; |
a0d0e21e | 2468 | I32 oldscope; |
54310121 | 2469 | bool oldcatch = CATCH_GET; |
6224f72b | 2470 | int ret; |
533c011a | 2471 | OP* oldop = PL_op; |
db36c5a1 | 2472 | dJMPENV; |
1e422769 | 2473 | |
a0d0e21e LW |
2474 | if (flags & G_DISCARD) { |
2475 | ENTER; | |
2476 | SAVETMPS; | |
2477 | } | |
2478 | ||
aa689395 | 2479 | Zero(&myop, 1, LOGOP); |
54310121 | 2480 | myop.op_next = Nullop; |
f51d4af5 | 2481 | if (!(flags & G_NOARGS)) |
aa689395 | 2482 | myop.op_flags |= OPf_STACKED; |
54310121 | 2483 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
2484 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
2485 | OPf_WANT_SCALAR); | |
462e5cf6 | 2486 | SAVEOP(); |
533c011a | 2487 | PL_op = (OP*)&myop; |
aa689395 | 2488 | |
3280af22 NIS |
2489 | EXTEND(PL_stack_sp, 1); |
2490 | *++PL_stack_sp = sv; | |
aa689395 | 2491 | oldmark = TOPMARK; |
3280af22 | 2492 | oldscope = PL_scopestack_ix; |
a0d0e21e | 2493 | |
3280af22 | 2494 | if (PERLDB_SUB && PL_curstash != PL_debstash |
36477c24 | 2495 | /* Handle first BEGIN of -d. */ |
3280af22 | 2496 | && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub))) |
36477c24 | 2497 | /* Try harder, since this may have been a sighandler, thus |
2498 | * curstash may be meaningless. */ | |
3280af22 | 2499 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash) |
491527d0 | 2500 | && !(flags & G_NODEBUG)) |
533c011a | 2501 | PL_op->op_private |= OPpENTERSUB_DB; |
a0d0e21e | 2502 | |
968b3946 GS |
2503 | if (flags & G_METHOD) { |
2504 | Zero(&method_op, 1, UNOP); | |
2505 | method_op.op_next = PL_op; | |
2506 | method_op.op_ppaddr = PL_ppaddr[OP_METHOD]; | |
2507 | myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB]; | |
f39d0b86 | 2508 | PL_op = (OP*)&method_op; |
968b3946 GS |
2509 | } |
2510 | ||
312caa8e | 2511 | if (!(flags & G_EVAL)) { |
0cdb2077 | 2512 | CATCH_SET(TRUE); |
14dd3ad8 | 2513 | call_body((OP*)&myop, FALSE); |
312caa8e | 2514 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
0253cb41 | 2515 | CATCH_SET(oldcatch); |
312caa8e CS |
2516 | } |
2517 | else { | |
d78bda3d | 2518 | myop.op_other = (OP*)&myop; |
3280af22 | 2519 | PL_markstack_ptr--; |
4633a7c4 LW |
2520 | /* we're trying to emulate pp_entertry() here */ |
2521 | { | |
c09156bb | 2522 | register PERL_CONTEXT *cx; |
f54cb97a | 2523 | const I32 gimme = GIMME_V; |
ac27b0f5 | 2524 | |
4633a7c4 LW |
2525 | ENTER; |
2526 | SAVETMPS; | |
ac27b0f5 | 2527 | |
1d76a5c3 | 2528 | PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp); |
4633a7c4 | 2529 | PUSHEVAL(cx, 0, 0); |
533c011a | 2530 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ |
ac27b0f5 | 2531 | |
faef0170 | 2532 | PL_in_eval = EVAL_INEVAL; |
4633a7c4 | 2533 | if (flags & G_KEEPERR) |
faef0170 | 2534 | PL_in_eval |= EVAL_KEEPERR; |
4633a7c4 | 2535 | else |
c69006e4 | 2536 | sv_setpvn(ERRSV,"",0); |
4633a7c4 | 2537 | } |
3280af22 | 2538 | PL_markstack_ptr++; |
a0d0e21e | 2539 | |
14dd3ad8 | 2540 | JMPENV_PUSH(ret); |
6224f72b GS |
2541 | switch (ret) { |
2542 | case 0: | |
14dd3ad8 GS |
2543 | redo_body: |
2544 | call_body((OP*)&myop, FALSE); | |
312caa8e CS |
2545 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
2546 | if (!(flags & G_KEEPERR)) | |
c69006e4 | 2547 | sv_setpvn(ERRSV,"",0); |
a0d0e21e | 2548 | break; |
6224f72b | 2549 | case 1: |
f86702cc | 2550 | STATUS_ALL_FAILURE; |
a0d0e21e | 2551 | /* FALL THROUGH */ |
6224f72b | 2552 | case 2: |
a0d0e21e | 2553 | /* my_exit() was called */ |
3280af22 | 2554 | PL_curstash = PL_defstash; |
a0d0e21e | 2555 | FREETMPS; |
14dd3ad8 | 2556 | JMPENV_POP; |
cc3604b1 | 2557 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) |
cea2e8a9 | 2558 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc | 2559 | my_exit_jump(); |
a0d0e21e | 2560 | /* NOTREACHED */ |
6224f72b | 2561 | case 3: |
3280af22 | 2562 | if (PL_restartop) { |
533c011a | 2563 | PL_op = PL_restartop; |
3280af22 | 2564 | PL_restartop = 0; |
312caa8e | 2565 | goto redo_body; |
a0d0e21e | 2566 | } |
3280af22 | 2567 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
2568 | if (flags & G_ARRAY) |
2569 | retval = 0; | |
2570 | else { | |
2571 | retval = 1; | |
3280af22 | 2572 | *++PL_stack_sp = &PL_sv_undef; |
a0d0e21e | 2573 | } |
312caa8e | 2574 | break; |
a0d0e21e | 2575 | } |
a0d0e21e | 2576 | |
3280af22 | 2577 | if (PL_scopestack_ix > oldscope) { |
a0a2876f LW |
2578 | SV **newsp; |
2579 | PMOP *newpm; | |
2580 | I32 gimme; | |
c09156bb | 2581 | register PERL_CONTEXT *cx; |
a0a2876f LW |
2582 | I32 optype; |
2583 | ||
2584 | POPBLOCK(cx,newpm); | |
2585 | POPEVAL(cx); | |
3280af22 | 2586 | PL_curpm = newpm; |
a0a2876f | 2587 | LEAVE; |
9d4ba2ae AL |
2588 | PERL_UNUSED_VAR(newsp); |
2589 | PERL_UNUSED_VAR(gimme); | |
2590 | PERL_UNUSED_VAR(optype); | |
a0d0e21e | 2591 | } |
14dd3ad8 | 2592 | JMPENV_POP; |
a0d0e21e | 2593 | } |
1e422769 | 2594 | |
a0d0e21e | 2595 | if (flags & G_DISCARD) { |
3280af22 | 2596 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
2597 | retval = 0; |
2598 | FREETMPS; | |
2599 | LEAVE; | |
2600 | } | |
533c011a | 2601 | PL_op = oldop; |
a0d0e21e LW |
2602 | return retval; |
2603 | } | |
2604 | ||
312caa8e | 2605 | STATIC void |
dd374669 | 2606 | S_call_body(pTHX_ const OP *myop, bool is_eval) |
312caa8e | 2607 | { |
312caa8e CS |
2608 | if (PL_op == myop) { |
2609 | if (is_eval) | |
f807eda9 | 2610 | PL_op = Perl_pp_entereval(aTHX); /* this doesn't do a POPMARK */ |
312caa8e | 2611 | else |
f807eda9 | 2612 | PL_op = Perl_pp_entersub(aTHX); /* this does */ |
312caa8e CS |
2613 | } |
2614 | if (PL_op) | |
cea2e8a9 | 2615 | CALLRUNOPS(aTHX); |
312caa8e CS |
2616 | } |
2617 | ||
6e72f9df | 2618 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 | 2619 | |
954c1994 GS |
2620 | /* |
2621 | =for apidoc p||eval_sv | |
2622 | ||
2623 | Tells Perl to C<eval> the string in the SV. | |
2624 | ||
2625 | =cut | |
2626 | */ | |
2627 | ||
a0d0e21e | 2628 | I32 |
864dbfa3 | 2629 | Perl_eval_sv(pTHX_ SV *sv, I32 flags) |
ac27b0f5 | 2630 | |
8ac85365 | 2631 | /* See G_* flags in cop.h */ |
a0d0e21e | 2632 | { |
924508f0 | 2633 | dSP; |
a0d0e21e | 2634 | UNOP myop; /* fake syntax tree node */ |
8fa7f367 | 2635 | volatile I32 oldmark = SP - PL_stack_base; |
13689cfe | 2636 | volatile I32 retval = 0; |
6224f72b | 2637 | int ret; |
533c011a | 2638 | OP* oldop = PL_op; |
db36c5a1 | 2639 | dJMPENV; |
84902520 | 2640 | |
4633a7c4 LW |
2641 | if (flags & G_DISCARD) { |
2642 | ENTER; | |
2643 | SAVETMPS; | |
2644 | } | |
2645 | ||
462e5cf6 | 2646 | SAVEOP(); |
533c011a NIS |
2647 | PL_op = (OP*)&myop; |
2648 | Zero(PL_op, 1, UNOP); | |
3280af22 NIS |
2649 | EXTEND(PL_stack_sp, 1); |
2650 | *++PL_stack_sp = sv; | |
79072805 | 2651 | |
4633a7c4 LW |
2652 | if (!(flags & G_NOARGS)) |
2653 | myop.op_flags = OPf_STACKED; | |
79072805 | 2654 | myop.op_next = Nullop; |
6e72f9df | 2655 | myop.op_type = OP_ENTEREVAL; |
54310121 | 2656 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
2657 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
2658 | OPf_WANT_SCALAR); | |
6e72f9df | 2659 | if (flags & G_KEEPERR) |
2660 | myop.op_flags |= OPf_SPECIAL; | |
4633a7c4 | 2661 | |
dedbcade DM |
2662 | /* fail now; otherwise we could fail after the JMPENV_PUSH but |
2663 | * before a PUSHEVAL, which corrupts the stack after a croak */ | |
2664 | TAINT_PROPER("eval_sv()"); | |
2665 | ||
14dd3ad8 | 2666 | JMPENV_PUSH(ret); |
6224f72b GS |
2667 | switch (ret) { |
2668 | case 0: | |
14dd3ad8 GS |
2669 | redo_body: |
2670 | call_body((OP*)&myop,TRUE); | |
312caa8e CS |
2671 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
2672 | if (!(flags & G_KEEPERR)) | |
c69006e4 | 2673 | sv_setpvn(ERRSV,"",0); |
4633a7c4 | 2674 | break; |
6224f72b | 2675 | case 1: |
f86702cc | 2676 | STATUS_ALL_FAILURE; |
4633a7c4 | 2677 | /* FALL THROUGH */ |
6224f72b | 2678 | case 2: |
4633a7c4 | 2679 | /* my_exit() was called */ |
3280af22 | 2680 | PL_curstash = PL_defstash; |
4633a7c4 | 2681 | FREETMPS; |
14dd3ad8 | 2682 | JMPENV_POP; |
cc3604b1 | 2683 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) |
cea2e8a9 | 2684 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc | 2685 | my_exit_jump(); |
4633a7c4 | 2686 | /* NOTREACHED */ |
6224f72b | 2687 | case 3: |
3280af22 | 2688 | if (PL_restartop) { |
533c011a | 2689 | PL_op = PL_restartop; |
3280af22 | 2690 | PL_restartop = 0; |
312caa8e | 2691 | goto redo_body; |
4633a7c4 | 2692 | } |
3280af22 | 2693 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
2694 | if (flags & G_ARRAY) |
2695 | retval = 0; | |
2696 | else { | |
2697 | retval = 1; | |
3280af22 | 2698 | *++PL_stack_sp = &PL_sv_undef; |
4633a7c4 | 2699 | } |
312caa8e | 2700 | break; |
4633a7c4 LW |
2701 | } |
2702 | ||
14dd3ad8 | 2703 | JMPENV_POP; |
4633a7c4 | 2704 | if (flags & G_DISCARD) { |
3280af22 | 2705 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
2706 | retval = 0; |
2707 | FREETMPS; | |
2708 | LEAVE; | |
2709 | } | |
533c011a | 2710 | PL_op = oldop; |
4633a7c4 LW |
2711 | return retval; |
2712 | } | |
2713 | ||
954c1994 GS |
2714 | /* |
2715 | =for apidoc p||eval_pv | |
2716 | ||
2717 | Tells Perl to C<eval> the given string and return an SV* result. | |
2718 | ||
2719 | =cut | |
2720 | */ | |
2721 | ||
137443ea | 2722 | SV* |
864dbfa3 | 2723 | Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error) |
137443ea | 2724 | { |
2725 | dSP; | |
2726 | SV* sv = newSVpv(p, 0); | |
2727 | ||
864dbfa3 | 2728 | eval_sv(sv, G_SCALAR); |
137443ea | 2729 | SvREFCNT_dec(sv); |
2730 | ||
2731 | SPAGAIN; | |
2732 | sv = POPs; | |
2733 | PUTBACK; | |
2734 | ||
2d8e6c8d | 2735 | if (croak_on_error && SvTRUE(ERRSV)) { |
0510663f | 2736 | Perl_croak(aTHX_ SvPVx_nolen_const(ERRSV)); |
2d8e6c8d | 2737 | } |
137443ea | 2738 | |
2739 | return sv; | |
2740 | } | |
2741 | ||
4633a7c4 LW |
2742 | /* Require a module. */ |
2743 | ||
954c1994 | 2744 | /* |
ccfc67b7 JH |
2745 | =head1 Embedding Functions |
2746 | ||
954c1994 GS |
2747 | =for apidoc p||require_pv |
2748 | ||
7d3fb230 BS |
2749 | Tells Perl to C<require> the file named by the string argument. It is |
2750 | analogous to the Perl code C<eval "require '$file'">. It's even | |
2307c6d0 | 2751 | implemented that way; consider using load_module instead. |
954c1994 | 2752 | |
7d3fb230 | 2753 | =cut */ |
954c1994 | 2754 | |
4633a7c4 | 2755 | void |
864dbfa3 | 2756 | Perl_require_pv(pTHX_ const char *pv) |
4633a7c4 | 2757 | { |
d3acc0f7 JP |
2758 | SV* sv; |
2759 | dSP; | |
e788e7d3 | 2760 | PUSHSTACKi(PERLSI_REQUIRE); |
d3acc0f7 | 2761 | PUTBACK; |
be41e5d9 NC |
2762 | sv = Perl_newSVpvf(aTHX_ "require q%c%s%c", 0, pv, 0); |
2763 | eval_sv(sv_2mortal(sv), G_DISCARD); | |
d3acc0f7 JP |
2764 | SPAGAIN; |
2765 | POPSTACK; | |
79072805 LW |
2766 | } |
2767 | ||
79072805 | 2768 | void |
e1ec3a88 | 2769 | Perl_magicname(pTHX_ const char *sym, const char *name, I32 namlen) |
79072805 LW |
2770 | { |
2771 | register GV *gv; | |
2772 | ||
155aba94 | 2773 | if ((gv = gv_fetchpv(sym,TRUE, SVt_PV))) |
14befaf4 | 2774 | sv_magic(GvSV(gv), (SV*)gv, PERL_MAGIC_sv, name, namlen); |
79072805 LW |
2775 | } |
2776 | ||
76e3520e | 2777 | STATIC void |
e1ec3a88 | 2778 | S_usage(pTHX_ const char *name) /* XXX move this out into a module ? */ |
4633a7c4 | 2779 | { |
ab821d7f | 2780 | /* This message really ought to be max 23 lines. |
75c72d73 | 2781 | * Removed -h because the user already knows that option. Others? */ |
fb73857a | 2782 | |
27da23d5 | 2783 | static const char * const usage_msg[] = { |
aefc56c5 SF |
2784 | "-0[octal] specify record separator (\\0, if no argument)", |
2785 | "-A[mod][=pattern] activate all/given assertions", | |
2786 | "-a autosplit mode with -n or -p (splits $_ into @F)", | |
2787 | "-C[number/list] enables the listed Unicode features", | |
2788 | "-c check syntax only (runs BEGIN and CHECK blocks)", | |
2789 | "-d[:debugger] run program under debugger", | |
2790 | "-D[number/list] set debugging flags (argument is a bit mask or alphabets)", | |
2791 | "-e program one line of program (several -e's allowed, omit programfile)", | |
aefc56c5 | 2792 | "-f don't do $sitelib/sitecustomize.pl at startup", |
aefc56c5 SF |
2793 | "-F/pattern/ split() pattern for -a switch (//'s are optional)", |
2794 | "-i[extension] edit <> files in place (makes backup if extension supplied)", | |
2795 | "-Idirectory specify @INC/#include directory (several -I's allowed)", | |
2796 | "-l[octal] enable line ending processing, specifies line terminator", | |
2797 | "-[mM][-]module execute \"use/no module...\" before executing program", | |
2798 | "-n assume \"while (<>) { ... }\" loop around program", | |
2799 | "-p assume loop like -n but print line also, like sed", | |
2800 | "-P run program through C preprocessor before compilation", | |
2801 | "-s enable rudimentary parsing for switches after programfile", | |
2802 | "-S look for programfile using PATH environment variable", | |
2803 | "-t enable tainting warnings", | |
2804 | "-T enable tainting checks", | |
2805 | "-u dump core after parsing program", | |
2806 | "-U allow unsafe operations", | |
2807 | "-v print version, subversion (includes VERY IMPORTANT perl info)", | |
2808 | "-V[:variable] print configuration summary (or a single Config.pm variable)", | |
2809 | "-w enable many useful warnings (RECOMMENDED)", | |
2810 | "-W enable all warnings", | |
2811 | "-x[directory] strip off text before #!perl line and perhaps cd to directory", | |
2812 | "-X disable all warnings", | |
fb73857a | 2813 | "\n", |
2814 | NULL | |
2815 | }; | |
27da23d5 | 2816 | const char * const *p = usage_msg; |
fb73857a | 2817 | |
b0e47665 GS |
2818 | PerlIO_printf(PerlIO_stdout(), |
2819 | "\nUsage: %s [switches] [--] [programfile] [arguments]", | |
2820 | name); | |
fb73857a | 2821 | while (*p) |
b0e47665 | 2822 | PerlIO_printf(PerlIO_stdout(), "\n %s", *p++); |
4633a7c4 LW |
2823 | } |
2824 | ||
b4ab917c DM |
2825 | /* convert a string of -D options (or digits) into an int. |
2826 | * sets *s to point to the char after the options */ | |
2827 | ||
2828 | #ifdef DEBUGGING | |
2829 | int | |
e1ec3a88 | 2830 | Perl_get_debug_opts(pTHX_ const char **s, bool givehelp) |
b4ab917c | 2831 | { |
27da23d5 | 2832 | static const char * const usage_msgd[] = { |
e6e64d9b JC |
2833 | " Debugging flag values: (see also -d)", |
2834 | " p Tokenizing and parsing (with v, displays parse stack)", | |
3679267a | 2835 | " s Stack snapshots (with v, displays all stacks)", |
e6e64d9b JC |
2836 | " l Context (loop) stack processing", |
2837 | " t Trace execution", | |
2838 | " o Method and overloading resolution", | |
2839 | " c String/numeric conversions", | |
2840 | " P Print profiling info, preprocessor command for -P, source file input state", | |
2841 | " m Memory allocation", | |
2842 | " f Format processing", | |
2843 | " r Regular expression parsing and execution", | |
2844 | " x Syntax tree dump", | |
3679267a | 2845 | " u Tainting checks", |
e6e64d9b JC |
2846 | " H Hash dump -- usurps values()", |
2847 | " X Scratchpad allocation", | |
2848 | " D Cleaning up", | |
2849 | " S Thread synchronization", | |
2850 | " T Tokenising", | |
2851 | " R Include reference counts of dumped variables (eg when using -Ds)", | |
2852 | " J Do not s,t,P-debug (Jump over) opcodes within package DB", | |
2853 | " v Verbose: use in conjunction with other flags", | |
2854 | " C Copy On Write", | |
2855 | " A Consistency checks on internal structures", | |
3679267a | 2856 | " q quiet - currently only suppresses the 'EXECUTING' message", |
e6e64d9b JC |
2857 | NULL |
2858 | }; | |
b4ab917c DM |
2859 | int i = 0; |
2860 | if (isALPHA(**s)) { | |
2861 | /* if adding extra options, remember to update DEBUG_MASK */ | |
bfed75c6 | 2862 | static const char debopts[] = "psltocPmfrxu HXDSTRJvCAq"; |
b4ab917c DM |
2863 | |
2864 | for (; isALNUM(**s); (*s)++) { | |
e1ec3a88 | 2865 | const char *d = strchr(debopts,**s); |
b4ab917c DM |
2866 | if (d) |
2867 | i |= 1 << (d - debopts); | |
2868 | else if (ckWARN_d(WARN_DEBUGGING)) | |
e6e64d9b JC |
2869 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
2870 | "invalid option -D%c, use -D'' to see choices\n", **s); | |
b4ab917c DM |
2871 | } |
2872 | } | |
e6e64d9b | 2873 | else if (isDIGIT(**s)) { |
b4ab917c DM |
2874 | i = atoi(*s); |
2875 | for (; isALNUM(**s); (*s)++) ; | |
2876 | } | |
ddcf8bc1 | 2877 | else if (givehelp) { |
aadb217d | 2878 | char **p = (char **)usage_msgd; |
e6e64d9b JC |
2879 | while (*p) PerlIO_printf(PerlIO_stdout(), "%s\n", *p++); |
2880 | } | |
b4ab917c DM |
2881 | # ifdef EBCDIC |
2882 | if ((i & DEBUG_p_FLAG) && ckWARN_d(WARN_DEBUGGING)) | |
2883 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), | |
2884 | "-Dp not implemented on this platform\n"); | |
2885 | # endif | |
2886 | return i; | |
2887 | } | |
2888 | #endif | |
2889 | ||
79072805 LW |
2890 | /* This routine handles any switches that can be given during run */ |
2891 | ||
2892 | char * | |
864dbfa3 | 2893 | Perl_moreswitches(pTHX_ char *s) |
79072805 | 2894 | { |
27da23d5 | 2895 | dVAR; |
84c133a0 | 2896 | UV rschar; |
79072805 LW |
2897 | |
2898 | switch (*s) { | |
2899 | case '0': | |
a863c7d1 | 2900 | { |
f2095865 | 2901 | I32 flags = 0; |
a3b680e6 | 2902 | STRLEN numlen; |
f2095865 JH |
2903 | |
2904 | SvREFCNT_dec(PL_rs); | |
2905 | if (s[1] == 'x' && s[2]) { | |
a3b680e6 | 2906 | const char *e = s+=2; |
f2095865 JH |
2907 | U8 *tmps; |
2908 | ||
a3b680e6 AL |
2909 | while (*e) |
2910 | e++; | |
f2095865 JH |
2911 | numlen = e - s; |
2912 | flags = PERL_SCAN_SILENT_ILLDIGIT; | |
2913 | rschar = (U32)grok_hex(s, &numlen, &flags, NULL); | |
2914 | if (s + numlen < e) { | |
2915 | rschar = 0; /* Grandfather -0xFOO as -0 -xFOO. */ | |
2916 | numlen = 0; | |
2917 | s--; | |
2918 | } | |
2919 | PL_rs = newSVpvn("", 0); | |
c5661c80 | 2920 | SvGROW(PL_rs, (STRLEN)(UNISKIP(rschar) + 1)); |
f2095865 JH |
2921 | tmps = (U8*)SvPVX(PL_rs); |
2922 | uvchr_to_utf8(tmps, rschar); | |
2923 | SvCUR_set(PL_rs, UNISKIP(rschar)); | |
2924 | SvUTF8_on(PL_rs); | |
2925 | } | |
2926 | else { | |
2927 | numlen = 4; | |
2928 | rschar = (U32)grok_oct(s, &numlen, &flags, NULL); | |
2929 | if (rschar & ~((U8)~0)) | |
2930 | PL_rs = &PL_sv_undef; | |
2931 | else if (!rschar && numlen >= 2) | |
2932 | PL_rs = newSVpvn("", 0); | |
2933 | else { | |
2934 | char ch = (char)rschar; | |
2935 | PL_rs = newSVpvn(&ch, 1); | |
2936 | } | |
2937 | } | |
800633c3 | 2938 | sv_setsv(get_sv("/", TRUE), PL_rs); |
f2095865 | 2939 | return s + numlen; |
a863c7d1 | 2940 | } |
46487f74 | 2941 | case 'C': |
a05d7ebb | 2942 | s++; |
dd374669 | 2943 | PL_unicode = parse_unicode_opts( (const char **)&s ); |
46487f74 | 2944 | return s; |
2304df62 | 2945 | case 'F': |
3280af22 | 2946 | PL_minus_F = TRUE; |
ebce5377 RGS |
2947 | PL_splitstr = ++s; |
2948 | while (*s && !isSPACE(*s)) ++s; | |
2949 | *s = '\0'; | |
2950 | PL_splitstr = savepv(PL_splitstr); | |
2304df62 | 2951 | return s; |
79072805 | 2952 | case 'a': |
3280af22 | 2953 | PL_minus_a = TRUE; |
79072805 LW |
2954 | s++; |
2955 | return s; | |
2956 | case 'c': | |
3280af22 | 2957 | PL_minus_c = TRUE; |
79072805 LW |
2958 | s++; |
2959 | return s; | |
2960 | case 'd': | |
bbce6d69 | 2961 | forbid_setid("-d"); |
4633a7c4 | 2962 | s++; |
2cbb2ee1 RGS |
2963 | |
2964 | /* -dt indicates to the debugger that threads will be used */ | |
2965 | if (*s == 't' && !isALNUM(s[1])) { | |
2966 | ++s; | |
2967 | my_setenv("PERL5DB_THREADED", "1"); | |
2968 | } | |
2969 | ||
70c94a19 RR |
2970 | /* The following permits -d:Mod to accepts arguments following an = |
2971 | in the fashion that -MSome::Mod does. */ | |
2972 | if (*s == ':' || *s == '=') { | |
06b5626a | 2973 | const char *start; |
70c94a19 RR |
2974 | SV *sv; |
2975 | sv = newSVpv("use Devel::", 0); | |
2976 | start = ++s; | |
2977 | /* We now allow -d:Module=Foo,Bar */ | |
2978 | while(isALNUM(*s) || *s==':') ++s; | |
2979 | if (*s != '=') | |
2980 | sv_catpv(sv, start); | |
2981 | else { | |
2982 | sv_catpvn(sv, start, s-start); | |
0c5a913d | 2983 | Perl_sv_catpvf(aTHX_ sv, " split(/,/,q%c%s%c)", 0, ++s, 0); |
70c94a19 | 2984 | } |
4633a7c4 | 2985 | s += strlen(s); |
184f32ec | 2986 | my_setenv("PERL5DB", SvPV_nolen_const(sv)); |
4633a7c4 | 2987 | } |
ed094faf | 2988 | if (!PL_perldb) { |
3280af22 | 2989 | PL_perldb = PERLDB_ALL; |
a0d0e21e | 2990 | init_debugger(); |
ed094faf | 2991 | } |
79072805 LW |
2992 | return s; |
2993 | case 'D': | |
0453d815 | 2994 | { |
79072805 | 2995 | #ifdef DEBUGGING |
bbce6d69 | 2996 | forbid_setid("-D"); |
b4ab917c | 2997 | s++; |
dd374669 | 2998 | PL_debug = get_debug_opts( (const char **)&s, 1) | DEBUG_TOP_FLAG; |
12a43e32 | 2999 | #else /* !DEBUGGING */ |
0453d815 | 3000 | if (ckWARN_d(WARN_DEBUGGING)) |
9014280d | 3001 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
e6e64d9b | 3002 | "Recompile perl with -DDEBUGGING to use -D switch (did you mean -d ?)\n"); |
a0d0e21e | 3003 | for (s++; isALNUM(*s); s++) ; |
79072805 | 3004 | #endif |
79072805 | 3005 | return s; |
0453d815 | 3006 | } |
4633a7c4 | 3007 | case 'h': |
ac27b0f5 | 3008 | usage(PL_origargv[0]); |
7ca617d0 | 3009 | my_exit(0); |
79072805 | 3010 | case 'i': |
43c5f42d | 3011 | Safefree(PL_inplace); |
c030f24b GH |
3012 | #if defined(__CYGWIN__) /* do backup extension automagically */ |
3013 | if (*(s+1) == '\0') { | |
3014 | PL_inplace = savepv(".bak"); | |
3015 | return s+1; | |
3016 | } | |
3017 | #endif /* __CYGWIN__ */ | |
3280af22 | 3018 | PL_inplace = savepv(s+1); |
a6e20a40 AL |
3019 | for (s = PL_inplace; *s && !isSPACE(*s); s++) |
3020 | ; | |
7b8d334a | 3021 | if (*s) { |
fb73857a | 3022 | *s++ = '\0'; |
7b8d334a GS |
3023 | if (*s == '-') /* Additional switches on #! line. */ |
3024 | s++; | |
3025 | } | |
fb73857a | 3026 | return s; |
4e49a025 | 3027 | case 'I': /* -I handled both here and in parse_body() */ |
bbce6d69 | 3028 | forbid_setid("-I"); |
fb73857a | 3029 | ++s; |
3030 | while (*s && isSPACE(*s)) | |
3031 | ++s; | |
3032 | if (*s) { | |
774d564b | 3033 | char *e, *p; |
0df16ed7 GS |
3034 | p = s; |
3035 | /* ignore trailing spaces (possibly followed by other switches) */ | |
3036 | do { | |
3037 | for (e = p; *e && !isSPACE(*e); e++) ; | |
3038 | p = e; | |
3039 | while (isSPACE(*p)) | |
3040 | p++; | |
3041 | } while (*p && *p != '-'); | |
3042 | e = savepvn(s, e-s); | |
88fe16b2 | 3043 | incpush(e, TRUE, TRUE, FALSE, FALSE); |
0df16ed7 GS |
3044 | Safefree(e); |
3045 | s = p; | |
3046 | if (*s == '-') | |
3047 | s++; | |
79072805 LW |
3048 | } |
3049 | else | |
a67e862a | 3050 | Perl_croak(aTHX_ "No directory specified for -I"); |
fb73857a | 3051 | return s; |
79072805 | 3052 | case 'l': |
3280af22 | 3053 | PL_minus_l = TRUE; |
79072805 | 3054 | s++; |
7889fe52 NIS |
3055 | if (PL_ors_sv) { |
3056 | SvREFCNT_dec(PL_ors_sv); | |
3057 | PL_ors_sv = Nullsv; | |
3058 | } | |
79072805 | 3059 | if (isDIGIT(*s)) { |
53305cf1 | 3060 | I32 flags = 0; |
a3b680e6 | 3061 | STRLEN numlen; |
7889fe52 | 3062 | PL_ors_sv = newSVpvn("\n",1); |
53305cf1 NC |
3063 | numlen = 3 + (*s == '0'); |
3064 | *SvPVX(PL_ors_sv) = (char)grok_oct(s, &numlen, &flags, NULL); | |
79072805 LW |
3065 | s += numlen; |
3066 | } | |
3067 | else { | |
8bfdd7d9 | 3068 | if (RsPARA(PL_rs)) { |
7889fe52 NIS |
3069 | PL_ors_sv = newSVpvn("\n\n",2); |
3070 | } | |
3071 | else { | |
8bfdd7d9 | 3072 | PL_ors_sv = newSVsv(PL_rs); |
c07a80fd | 3073 | } |
79072805 LW |
3074 | } |
3075 | return s; | |
06492da6 SF |
3076 | case 'A': |
3077 | forbid_setid("-A"); | |
930366bd RGS |
3078 | if (!PL_preambleav) |
3079 | PL_preambleav = newAV(); | |
aefc56c5 SF |
3080 | s++; |
3081 | { | |
3082 | char *start = s; | |
3083 | SV *sv = newSVpv("use assertions::activate", 24); | |
3084 | while(isALNUM(*s) || *s == ':') ++s; | |
3085 | if (s != start) { | |
3086 | sv_catpvn(sv, "::", 2); | |
3087 | sv_catpvn(sv, start, s-start); | |
3088 | } | |
3089 | if (*s == '=') { | |
0c5a913d | 3090 | Perl_sv_catpvf(aTHX_ sv, " split(/,/,q%c%s%c)", 0, ++s, 0); |
aefc56c5 SF |
3091 | s+=strlen(s); |
3092 | } | |
3093 | else if (*s != '\0') { | |
3094 | Perl_croak(aTHX_ "Can't use '%c' after -A%.*s", *s, s-start, start); | |
3095 | } | |
06492da6 | 3096 | av_push(PL_preambleav, sv); |
aefc56c5 | 3097 | return s; |
06492da6 | 3098 | } |
1a30305b | 3099 | case 'M': |
bbce6d69 | 3100 | forbid_setid("-M"); /* XXX ? */ |
1a30305b | 3101 | /* FALL THROUGH */ |
3102 | case 'm': | |
bbce6d69 | 3103 | forbid_setid("-m"); /* XXX ? */ |
1a30305b | 3104 | if (*++s) { |
a5f75d66 | 3105 | char *start; |
11343788 | 3106 | SV *sv; |
e1ec3a88 | 3107 | const char *use = "use "; |
a5f75d66 | 3108 | /* -M-foo == 'no foo' */ |
d0043bd1 NC |
3109 | /* Leading space on " no " is deliberate, to make both |
3110 | possibilities the same length. */ | |
3111 | if (*s == '-') { use = " no "; ++s; } | |
3112 | sv = newSVpvn(use,4); | |
a5f75d66 | 3113 | start = s; |
1a30305b | 3114 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd | 3115 | while(isALNUM(*s) || *s==':') ++s; |
3116 | if (*s != '=') { | |
11343788 | 3117 | sv_catpv(sv, start); |
c07a80fd | 3118 | if (*(start-1) == 'm') { |
3119 | if (*s != '\0') | |
cea2e8a9 | 3120 | Perl_croak(aTHX_ "Can't use '%c' after -mname", *s); |
11343788 | 3121 | sv_catpv( sv, " ()"); |
c07a80fd | 3122 | } |
3123 | } else { | |
6df41af2 | 3124 | if (s == start) |
be98fb35 GS |
3125 | Perl_croak(aTHX_ "Module name required with -%c option", |
3126 | s[-1]); | |
11343788 | 3127 | sv_catpvn(sv, start, s-start); |
3d27e215 LM |
3128 | sv_catpv(sv, " split(/,/,q"); |
3129 | sv_catpvn(sv, "\0)", 1); /* Use NUL as q//-delimiter. */ | |
11343788 | 3130 | sv_catpv(sv, ++s); |
3d27e215 | 3131 | sv_catpvn(sv, "\0)", 2); |
c07a80fd | 3132 | } |
1a30305b | 3133 | s += strlen(s); |
5c831c24 | 3134 | if (!PL_preambleav) |
3280af22 NIS |
3135 | PL_preambleav = newAV(); |
3136 | av_push(PL_preambleav, sv); | |
1a30305b | 3137 | } |
3138 | else | |
9e81e6a1 | 3139 | Perl_croak(aTHX_ "Missing argument to -%c", *(s-1)); |
1a30305b | 3140 | return s; |
79072805 | 3141 | case 'n': |
3280af22 | 3142 | PL_minus_n = TRUE; |
79072805 LW |
3143 | s++; |
3144 | return s; | |
3145 | case 'p': | |
3280af22 | 3146 | PL_minus_p = TRUE; |
79072805 LW |
3147 | s++; |
3148 | return s; | |
3149 | case 's': | |
bbce6d69 | 3150 | forbid_setid("-s"); |
3280af22 | 3151 | PL_doswitches = TRUE; |
79072805 LW |
3152 | s++; |
3153 | return s; | |
6537fe72 MS |
3154 | case 't': |
3155 | if (!PL_tainting) | |
22f7c9c9 | 3156 | TOO_LATE_FOR('t'); |
6537fe72 MS |
3157 | s++; |
3158 | return s; | |
463ee0b2 | 3159 | case 'T': |
3280af22 | 3160 | if (!PL_tainting) |
22f7c9c9 | 3161 | TOO_LATE_FOR('T'); |
463ee0b2 LW |
3162 | s++; |
3163 | return s; | |
79072805 | 3164 | case 'u': |
bf4acbe4 GS |
3165 | #ifdef MACOS_TRADITIONAL |
3166 | Perl_croak(aTHX_ "Believe me, you don't want to use \"-u\" on a Macintosh"); | |
3167 | #endif | |
3280af22 | 3168 | PL_do_undump = TRUE; |
79072805 LW |
3169 | s++; |
3170 | return s; | |
3171 | case 'U': | |
3280af22 | 3172 | PL_unsafe = TRUE; |
79072805 LW |
3173 | s++; |
3174 | return s; | |
3175 | case 'v': | |
d7aa5382 JP |
3176 | if (!sv_derived_from(PL_patchlevel, "version")) |
3177 | (void *)upg_version(PL_patchlevel); | |
8e9464f1 | 3178 | #if !defined(DGUX) |
b0e47665 | 3179 | PerlIO_printf(PerlIO_stdout(), |
52ea0aec | 3180 | Perl_form(aTHX_ "\nThis is perl, %"SVf" built for %s", |
d7aa5382 JP |
3181 | vstringify(PL_patchlevel), |
3182 | ARCHNAME)); | |
8e9464f1 JH |
3183 | #else /* DGUX */ |
3184 | /* Adjust verbose output as in the perl that ships with the DG/UX OS from EMC */ | |
3185 | PerlIO_printf(PerlIO_stdout(), | |
52ea0aec | 3186 | Perl_form(aTHX_ "\nThis is perl, %"SVf"\n", |
d7aa5382 | 3187 | vstringify(PL_patchlevel))); |
8e9464f1 JH |
3188 | PerlIO_printf(PerlIO_stdout(), |
3189 | Perl_form(aTHX_ " built under %s at %s %s\n", | |
3190 | OSNAME, __DATE__, __TIME__)); | |
3191 | PerlIO_printf(PerlIO_stdout(), | |
3192 | Perl_form(aTHX_ " OS Specific Release: %s\n", | |
40a39f85 | 3193 | OSVERS)); |
8e9464f1 JH |
3194 | #endif /* !DGUX */ |
3195 | ||
fb73857a | 3196 | #if defined(LOCAL_PATCH_COUNT) |
3197 | if (LOCAL_PATCH_COUNT > 0) | |
b0e47665 GS |
3198 | PerlIO_printf(PerlIO_stdout(), |
3199 | "\n(with %d registered patch%s, " | |
3200 | "see perl -V for more detail)", | |
3201 | (int)LOCAL_PATCH_COUNT, | |
3202 | (LOCAL_PATCH_COUNT!=1) ? "es" : ""); | |
a5f75d66 | 3203 | #endif |
1a30305b | 3204 | |
b0e47665 | 3205 | PerlIO_printf(PerlIO_stdout(), |
359b00fe | 3206 | "\n\nCopyright 1987-2005, Larry Wall\n"); |
eae9c151 JH |
3207 | #ifdef MACOS_TRADITIONAL |
3208 | PerlIO_printf(PerlIO_stdout(), | |
be3c0a43 | 3209 | "\nMac OS port Copyright 1991-2002, Matthias Neeracher;\n" |
03765510 | 3210 | "maintained by Chris Nandor\n"); |
eae9c151 | 3211 | #endif |
79072805 | 3212 | #ifdef MSDOS |
b0e47665 GS |
3213 | PerlIO_printf(PerlIO_stdout(), |
3214 | "\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); | |
55497cff | 3215 | #endif |
3216 | #ifdef DJGPP | |
b0e47665 GS |
3217 | PerlIO_printf(PerlIO_stdout(), |
3218 | "djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n" | |
3219 | "djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n"); | |
4633a7c4 | 3220 | #endif |
79072805 | 3221 | #ifdef OS2 |
b0e47665 GS |
3222 | PerlIO_printf(PerlIO_stdout(), |
3223 | "\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" | |
be3c0a43 | 3224 | "Version 5 port Copyright (c) 1994-2002, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 | 3225 | #endif |
79072805 | 3226 | #ifdef atarist |
b0e47665 GS |
3227 | PerlIO_printf(PerlIO_stdout(), |
3228 | "atariST series port, ++jrb bammi@cadence.com\n"); | |
79072805 | 3229 | #endif |
a3f9223b | 3230 | #ifdef __BEOS__ |
b0e47665 GS |
3231 | PerlIO_printf(PerlIO_stdout(), |
3232 | "BeOS port Copyright Tom Spindler, 1997-1999\n"); | |
a3f9223b | 3233 | #endif |
1d84e8df | 3234 | #ifdef MPE |
b0e47665 | 3235 | PerlIO_printf(PerlIO_stdout(), |
e583a879 | 3236 | "MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-2003\n"); |
1d84e8df | 3237 | #endif |
9d116dd7 | 3238 | #ifdef OEMVS |
b0e47665 GS |
3239 | PerlIO_printf(PerlIO_stdout(), |
3240 | "MVS (OS390) port by Mortice Kern Systems, 1997-1999\n"); | |
9d116dd7 | 3241 | #endif |
495c5fdc | 3242 | #ifdef __VOS__ |
b0e47665 | 3243 | PerlIO_printf(PerlIO_stdout(), |
94efb9fb | 3244 | "Stratus VOS port by Paul.Green@stratus.com, 1997-2002\n"); |
495c5fdc | 3245 | #endif |
092bebab | 3246 | #ifdef __OPEN_VM |
b0e47665 GS |
3247 | PerlIO_printf(PerlIO_stdout(), |
3248 | "VM/ESA port by Neale Ferguson, 1998-1999\n"); | |
092bebab | 3249 | #endif |
a1a0e61e | 3250 | #ifdef POSIX_BC |
b0e47665 GS |
3251 | PerlIO_printf(PerlIO_stdout(), |
3252 | "BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n"); | |
a1a0e61e | 3253 | #endif |
61ae2fbf | 3254 | #ifdef __MINT__ |
b0e47665 GS |
3255 | PerlIO_printf(PerlIO_stdout(), |
3256 | "MiNT port by Guido Flohr, 1997-1999\n"); | |
61ae2fbf | 3257 | #endif |
f83d2536 | 3258 | #ifdef EPOC |
b0e47665 | 3259 | PerlIO_printf(PerlIO_stdout(), |
be3c0a43 | 3260 | "EPOC port by Olaf Flebbe, 1999-2002\n"); |
f83d2536 | 3261 | #endif |
e1caacb4 | 3262 | #ifdef UNDER_CE |
b475b3e6 JH |
3263 | PerlIO_printf(PerlIO_stdout(),"WINCE port by Rainer Keuchel, 2001-2002\n"); |
3264 | PerlIO_printf(PerlIO_stdout(),"Built on " __DATE__ " " __TIME__ "\n\n"); | |
e1caacb4 JH |
3265 | wce_hitreturn(); |
3266 | #endif | |
27da23d5 JH |
3267 | #ifdef SYMBIAN |
3268 | PerlIO_printf(PerlIO_stdout(), | |
3269 | "Symbian port by Nokia, 2004-2005\n"); | |
3270 | #endif | |
baed7233 DL |
3271 | #ifdef BINARY_BUILD_NOTICE |
3272 | BINARY_BUILD_NOTICE; | |
3273 | #endif | |
b0e47665 GS |
3274 | PerlIO_printf(PerlIO_stdout(), |
3275 | "\n\ | |
79072805 | 3276 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
3d6f292d | 3277 | GNU General Public License, which may be found in the Perl 5 source kit.\n\n\ |
95103687 | 3278 | Complete documentation for Perl, including FAQ lists, should be found on\n\ |
a0288114 | 3279 | this system using \"man perl\" or \"perldoc perl\". If you have access to the\n\ |
c9e30dd8 | 3280 | Internet, point your browser at http://www.perl.org/, the Perl Home Page.\n\n"); |
7ca617d0 | 3281 | my_exit(0); |
79072805 | 3282 | case 'w': |
599cee73 | 3283 | if (! (PL_dowarn & G_WARN_ALL_MASK)) |
ac27b0f5 | 3284 | PL_dowarn |= G_WARN_ON; |
599cee73 PM |
3285 | s++; |
3286 | return s; | |
3287 | case 'W': | |
ac27b0f5 | 3288 | PL_dowarn = G_WARN_ALL_ON|G_WARN_ON; |
317ea90d MS |
3289 | if (!specialWARN(PL_compiling.cop_warnings)) |
3290 | SvREFCNT_dec(PL_compiling.cop_warnings); | |
d3a7d8c7 | 3291 | PL_compiling.cop_warnings = pWARN_ALL ; |
599cee73 PM |
3292 | s++; |
3293 | return s; | |
3294 | case 'X': | |
ac27b0f5 | 3295 | PL_dowarn = G_WARN_ALL_OFF; |
317ea90d MS |
3296 | if (!specialWARN(PL_compiling.cop_warnings)) |
3297 | SvREFCNT_dec(PL_compiling.cop_warnings); | |
d3a7d8c7 | 3298 | PL_compiling.cop_warnings = pWARN_NONE ; |
79072805 LW |
3299 | s++; |
3300 | return s; | |
a0d0e21e | 3301 | case '*': |
79072805 LW |
3302 | case ' ': |
3303 | if (s[1] == '-') /* Additional switches on #! line. */ | |
3304 | return s+2; | |
3305 | break; | |
a0d0e21e | 3306 | case '-': |
79072805 | 3307 | case 0: |
51882d45 | 3308 | #if defined(WIN32) || !defined(PERL_STRICT_CR) |
a868473f NIS |
3309 | case '\r': |
3310 | #endif | |
79072805 LW |
3311 | case '\n': |
3312 | case '\t': | |
3313 | break; | |
aa689395 | 3314 | #ifdef ALTERNATE_SHEBANG |
3315 | case 'S': /* OS/2 needs -S on "extproc" line. */ | |
3316 | break; | |
3317 | #endif | |
a0d0e21e | 3318 | case 'P': |
3280af22 | 3319 | if (PL_preprocess) |
a0d0e21e LW |
3320 | return s+1; |
3321 | /* FALL THROUGH */ | |
79072805 | 3322 | default: |
cea2e8a9 | 3323 | Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s); |
79072805 LW |
3324 | } |
3325 | return Nullch; | |
3326 | } | |
3327 | ||
3328 | /* compliments of Tom Christiansen */ | |
3329 | ||
3330 | /* unexec() can be found in the Gnu emacs distribution */ | |
ee580363 | 3331 | /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */ |
79072805 LW |
3332 | |
3333 | void | |
864dbfa3 | 3334 | Perl_my_unexec(pTHX) |
79072805 LW |
3335 | { |
3336 | #ifdef UNEXEC | |
46fc3d4c | 3337 | SV* prog; |
3338 | SV* file; | |
ee580363 | 3339 | int status = 1; |
79072805 LW |
3340 | extern int etext; |
3341 | ||
ee580363 | 3342 | prog = newSVpv(BIN_EXP, 0); |
46fc3d4c | 3343 | sv_catpv(prog, "/perl"); |
6b88bc9c | 3344 | file = newSVpv(PL_origfilename, 0); |
46fc3d4c | 3345 | sv_catpv(file, ".perldump"); |
79072805 | 3346 | |
ee580363 GS |
3347 | unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0); |
3348 | /* unexec prints msg to stderr in case of failure */ | |
6ad3d225 | 3349 | PerlProc_exit(status); |
79072805 | 3350 | #else |
a5f75d66 AD |
3351 | # ifdef VMS |
3352 | # include <lib$routines.h> | |
3353 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ | |
aa689395 | 3354 | # else |
79072805 | 3355 | ABORT(); /* for use with undump */ |
aa689395 | 3356 | # endif |
a5f75d66 | 3357 | #endif |
79072805 LW |
3358 | } |
3359 | ||
cb68f92d GS |
3360 | /* initialize curinterp */ |
3361 | STATIC void | |
cea2e8a9 | 3362 | S_init_interp(pTHX) |
cb68f92d GS |
3363 | { |
3364 | ||
acfe0abc GS |
3365 | #ifdef MULTIPLICITY |
3366 | # define PERLVAR(var,type) | |
3367 | # define PERLVARA(var,n,type) | |
3368 | # if defined(PERL_IMPLICIT_CONTEXT) | |
3369 | # if defined(USE_5005THREADS) | |
3370 | # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init; | |
27da23d5 | 3371 | # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init; |
acfe0abc GS |
3372 | # else /* !USE_5005THREADS */ |
3373 | # define PERLVARI(var,type,init) aTHX->var = init; | |
3374 | # define PERLVARIC(var,type,init) aTHX->var = init; | |
3375 | # endif /* USE_5005THREADS */ | |
3967c732 | 3376 | # else |
acfe0abc GS |
3377 | # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init; |
3378 | # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init; | |
066ef5b5 | 3379 | # endif |
acfe0abc GS |
3380 | # include "intrpvar.h" |
3381 | # ifndef USE_5005THREADS | |
3382 | # include "thrdvar.h" | |
3383 | # endif | |
3384 | # undef PERLVAR | |
3385 | # undef PERLVARA | |
3386 | # undef PERLVARI | |
3387 | # undef PERLVARIC | |
3388 | #else | |
3389 | # define PERLVAR(var,type) | |
3390 | # define PERLVARA(var,n,type) | |
3391 | # define PERLVARI(var,type,init) PL_##var = init; | |
3392 | # define PERLVARIC(var,type,init) PL_##var = init; | |
3393 | # include "intrpvar.h" | |
3394 | # ifndef USE_5005THREADS | |
3395 | # include "thrdvar.h" | |
3396 | # endif | |
3397 | # undef PERLVAR | |
3398 | # undef PERLVARA | |
3399 | # undef PERLVARI | |
3400 | # undef PERLVARIC | |
cb68f92d GS |
3401 | #endif |
3402 | ||
cb68f92d GS |
3403 | } |
3404 | ||
76e3520e | 3405 | STATIC void |
cea2e8a9 | 3406 | S_init_main_stash(pTHX) |
79072805 | 3407 | { |
463ee0b2 | 3408 | GV *gv; |
6e72f9df | 3409 | |
3280af22 | 3410 | PL_curstash = PL_defstash = newHV(); |
79cb57f6 | 3411 | PL_curstname = newSVpvn("main",4); |
adbc6bb1 LW |
3412 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
3413 | SvREFCNT_dec(GvHV(gv)); | |
3280af22 | 3414 | GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash); |
463ee0b2 | 3415 | SvREADONLY_on(gv); |
bfcb3514 | 3416 | Perl_hv_name_set(aTHX_ PL_defstash, "main", 4, 0); |
3280af22 NIS |
3417 | PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); |
3418 | GvMULTI_on(PL_incgv); | |
3419 | PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */ | |
3420 | GvMULTI_on(PL_hintgv); | |
3421 | PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV); | |
3422 | PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); | |
3423 | GvMULTI_on(PL_errgv); | |
3424 | PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */ | |
3425 | GvMULTI_on(PL_replgv); | |
cea2e8a9 | 3426 | (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */ |
c69033f2 NC |
3427 | #ifdef PERL_DONT_CREATE_GVSV |
3428 | gv_SVadd(PL_errgv); | |
3429 | #endif | |
38a03e6e MB |
3430 | sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */ |
3431 | sv_setpvn(ERRSV, "", 0); | |
3280af22 | 3432 | PL_curstash = PL_defstash; |
11faa288 | 3433 | CopSTASH_set(&PL_compiling, PL_defstash); |
ed094faf | 3434 | PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); |
3280af22 | 3435 | PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV)); |
4633a7c4 | 3436 | /* We must init $/ before switches are processed. */ |
864dbfa3 | 3437 | sv_setpvn(get_sv("/", TRUE), "\n", 1); |
79072805 LW |
3438 | } |
3439 | ||
ae3f3efd | 3440 | /* PSz 18 Nov 03 fdscript now global but do not change prototype */ |
76e3520e | 3441 | STATIC void |
dd374669 | 3442 | S_open_script(pTHX_ const char *scriptname, bool dosearch, SV *sv) |
79072805 | 3443 | { |
ae3f3efd | 3444 | #ifndef IAMSUID |
e1ec3a88 AL |
3445 | const char *quote; |
3446 | const char *code; | |
3447 | const char *cpp_discard_flag; | |
3448 | const char *perl; | |
ae3f3efd | 3449 | #endif |
27da23d5 | 3450 | dVAR; |
1b24ed4b | 3451 | |
ae3f3efd PS |
3452 | PL_fdscript = -1; |
3453 | PL_suidscript = -1; | |
79072805 | 3454 | |
3280af22 | 3455 | if (PL_e_script) { |
ff5bdd37 | 3456 | PL_origfilename = savepvn("-e", 2); |
96436eeb | 3457 | } |
6c4ab083 GS |
3458 | else { |
3459 | /* if find_script() returns, it returns a malloc()-ed value */ | |
dd374669 | 3460 | scriptname = PL_origfilename = find_script(scriptname, dosearch, NULL, 1); |
6c4ab083 GS |
3461 | |
3462 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { | |
e1ec3a88 | 3463 | const char *s = scriptname + 8; |
ae3f3efd | 3464 | PL_fdscript = atoi(s); |
6c4ab083 GS |
3465 | while (isDIGIT(*s)) |
3466 | s++; | |
3467 | if (*s) { | |
ae3f3efd PS |
3468 | /* PSz 18 Feb 04 |
3469 | * Tell apart "normal" usage of fdscript, e.g. | |
3470 | * with bash on FreeBSD: | |
3471 | * perl <( echo '#!perl -DA'; echo 'print "$0\n"') | |
3472 | * from usage in suidperl. | |
3473 | * Does any "normal" usage leave garbage after the number??? | |
3474 | * Is it a mistake to use a similar /dev/fd/ construct for | |
3475 | * suidperl? | |
3476 | */ | |
3477 | PL_suidscript = 1; | |
3478 | /* PSz 20 Feb 04 | |
3479 | * Be supersafe and do some sanity-checks. | |
3480 | * Still, can we be sure we got the right thing? | |
3481 | */ | |
3482 | if (*s != '/') { | |
3483 | Perl_croak(aTHX_ "Wrong syntax (suid) fd script name \"%s\"\n", s); | |
3484 | } | |
3485 | if (! *(s+1)) { | |
3486 | Perl_croak(aTHX_ "Missing (suid) fd script name\n"); | |
3487 | } | |
6c4ab083 | 3488 | scriptname = savepv(s + 1); |
3280af22 | 3489 | Safefree(PL_origfilename); |
dd374669 | 3490 | PL_origfilename = (char *)scriptname; |
6c4ab083 GS |
3491 | } |
3492 | } | |
3493 | } | |
3494 | ||
05ec9bb3 | 3495 | CopFILE_free(PL_curcop); |
57843af0 | 3496 | CopFILE_set(PL_curcop, PL_origfilename); |
770526c1 | 3497 | if (*PL_origfilename == '-' && PL_origfilename[1] == '\0') |
dd374669 | 3498 | scriptname = (char *)""; |
ae3f3efd PS |
3499 | if (PL_fdscript >= 0) { |
3500 | PL_rsfp = PerlIO_fdopen(PL_fdscript,PERL_SCRIPT_MODE); | |
1b24ed4b MS |
3501 | # if defined(HAS_FCNTL) && defined(F_SETFD) |
3502 | if (PL_rsfp) | |
3503 | /* ensure close-on-exec */ | |
3504 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); | |
3505 | # endif | |
96436eeb | 3506 | } |
ae3f3efd PS |
3507 | #ifdef IAMSUID |
3508 | else { | |
86207487 NC |
3509 | Perl_croak(aTHX_ "sperl needs fd script\n" |
3510 | "You should not call sperl directly; do you need to " | |
3511 | "change a #! line\nfrom sperl to perl?\n"); | |
3512 | ||
ae3f3efd PS |
3513 | /* PSz 11 Nov 03 |
3514 | * Do not open (or do other fancy stuff) while setuid. | |
3515 | * Perl does the open, and hands script to suidperl on a fd; | |
3516 | * suidperl only does some checks, sets up UIDs and re-execs | |
3517 | * perl with that fd as it has always done. | |
3518 | */ | |
3519 | } | |
3520 | if (PL_suidscript != 1) { | |
3521 | Perl_croak(aTHX_ "suidperl needs (suid) fd script\n"); | |
3522 | } | |
3523 | #else /* IAMSUID */ | |
3280af22 | 3524 | else if (PL_preprocess) { |
dd374669 | 3525 | const char *cpp_cfg = CPPSTDIN; |
79cb57f6 | 3526 | SV *cpp = newSVpvn("",0); |
46fc3d4c | 3527 | SV *cmd = NEWSV(0,0); |
3528 | ||
ae58f265 JH |
3529 | if (cpp_cfg[0] == 0) /* PERL_MICRO? */ |
3530 | Perl_croak(aTHX_ "Can't run with cpp -P with CPPSTDIN undefined"); | |
46fc3d4c | 3531 | if (strEQ(cpp_cfg, "cppstdin")) |
cea2e8a9 | 3532 | Perl_sv_catpvf(aTHX_ cpp, "%s/", BIN_EXP); |
46fc3d4c | 3533 | sv_catpv(cpp, cpp_cfg); |
79072805 | 3534 | |
1b24ed4b MS |
3535 | # ifndef VMS |
3536 | sv_catpvn(sv, "-I", 2); | |
3537 | sv_catpv(sv,PRIVLIB_EXP); | |
3538 | # endif | |
46fc3d4c | 3539 | |
14953ddc MB |
3540 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3541 | "PL_preprocess: scriptname=\"%s\", cpp=\"%s\", sv=\"%s\", CPPMINUS=\"%s\"\n", | |
848ef955 NC |
3542 | scriptname, SvPVX_const (cpp), SvPVX_const (sv), |
3543 | CPPMINUS)); | |
1b24ed4b MS |
3544 | |
3545 | # if defined(MSDOS) || defined(WIN32) || defined(VMS) | |
3546 | quote = "\""; | |
3547 | # else | |
3548 | quote = "'"; | |
3549 | # endif | |
3550 | ||
3551 | # ifdef VMS | |
3552 | cpp_discard_flag = ""; | |
3553 | # else | |
3554 | cpp_discard_flag = "-C"; | |
3555 | # endif | |
3556 | ||
3557 | # ifdef OS2 | |
3558 | perl = os2_execname(aTHX); | |
3559 | # else | |
3560 | perl = PL_origargv[0]; | |
3561 | # endif | |
3562 | ||
3563 | ||
3564 | /* This strips off Perl comments which might interfere with | |
62375a60 NIS |
3565 | the C pre-processor, including #!. #line directives are |
3566 | deliberately stripped to avoid confusion with Perl's version | |
1b24ed4b MS |
3567 | of #line. FWP played some golf with it so it will fit |
3568 | into VMS's 255 character buffer. | |
3569 | */ | |
3570 | if( PL_doextract ) | |
3571 | code = "(1../^#!.*perl/i)|/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print"; | |
3572 | else | |
3573 | code = "/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print"; | |
3574 | ||
3575 | Perl_sv_setpvf(aTHX_ cmd, "\ | |
3576 | %s -ne%s%s%s %s | %"SVf" %s %"SVf" %s", | |
62375a60 | 3577 | perl, quote, code, quote, scriptname, cpp, |
1b24ed4b MS |
3578 | cpp_discard_flag, sv, CPPMINUS); |
3579 | ||
3280af22 | 3580 | PL_doextract = FALSE; |
0a6c758d | 3581 | |
62375a60 NIS |
3582 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3583 | "PL_preprocess: cmd=\"%s\"\n", | |
848ef955 | 3584 | SvPVX_const(cmd))); |
0a6c758d | 3585 | |
848ef955 | 3586 | PL_rsfp = PerlProc_popen((char *)SvPVX_const(cmd), (char *)"r"); |
46fc3d4c | 3587 | SvREFCNT_dec(cmd); |
3588 | SvREFCNT_dec(cpp); | |
79072805 LW |
3589 | } |
3590 | else if (!*scriptname) { | |
bbce6d69 | 3591 | forbid_setid("program input from stdin"); |
3280af22 | 3592 | PL_rsfp = PerlIO_stdin(); |
79072805 | 3593 | } |
96436eeb | 3594 | else { |
3280af22 | 3595 | PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE); |
1b24ed4b MS |
3596 | # if defined(HAS_FCNTL) && defined(F_SETFD) |
3597 | if (PL_rsfp) | |
3598 | /* ensure close-on-exec */ | |
3599 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); | |
3600 | # endif | |
96436eeb | 3601 | } |
ae3f3efd | 3602 | #endif /* IAMSUID */ |
3280af22 | 3603 | if (!PL_rsfp) { |
447218f8 | 3604 | /* PSz 16 Sep 03 Keep neat error message */ |
fa3aa65a JC |
3605 | Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n", |
3606 | CopFILE(PL_curcop), Strerror(errno)); | |
13281fa4 | 3607 | } |
79072805 | 3608 | } |
8d063cd8 | 3609 | |
7b89560d JH |
3610 | /* Mention |
3611 | * I_SYSSTATVFS HAS_FSTATVFS | |
3612 | * I_SYSMOUNT | |
c890dc6c | 3613 | * I_STATFS HAS_FSTATFS HAS_GETFSSTAT |
7b89560d JH |
3614 | * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT |
3615 | * here so that metaconfig picks them up. */ | |
3616 | ||
104d25b7 | 3617 | #ifdef IAMSUID |
864dbfa3 | 3618 | STATIC int |
e688b231 | 3619 | S_fd_on_nosuid_fs(pTHX_ int fd) |
104d25b7 | 3620 | { |
ae3f3efd PS |
3621 | /* PSz 27 Feb 04 |
3622 | * We used to do this as "plain" user (after swapping UIDs with setreuid); | |
3623 | * but is needed also on machines without setreuid. | |
3624 | * Seems safe enough to run as root. | |
3625 | */ | |
0545a864 JH |
3626 | int check_okay = 0; /* able to do all the required sys/libcalls */ |
3627 | int on_nosuid = 0; /* the fd is on a nosuid fs */ | |
ae3f3efd PS |
3628 | /* PSz 12 Nov 03 |
3629 | * Need to check noexec also: nosuid might not be set, the average | |
3630 | * sysadmin would say that nosuid is irrelevant once he sets noexec. | |
3631 | */ | |
3632 | int on_noexec = 0; /* the fd is on a noexec fs */ | |
3633 | ||
104d25b7 | 3634 | /* |
ad27e871 | 3635 | * Preferred order: fstatvfs(), fstatfs(), ustat()+getmnt(), getmntent(). |
e688b231 | 3636 | * fstatvfs() is UNIX98. |
0545a864 | 3637 | * fstatfs() is 4.3 BSD. |
ad27e871 | 3638 | * ustat()+getmnt() is pre-4.3 BSD. |
0545a864 JH |
3639 | * getmntent() is O(number-of-mounted-filesystems) and can hang on |
3640 | * an irrelevant filesystem while trying to reach the right one. | |
104d25b7 JH |
3641 | */ |
3642 | ||
6439433f JH |
3643 | #undef FD_ON_NOSUID_CHECK_OKAY /* found the syscalls to do the check? */ |
3644 | ||
3645 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3646 | defined(HAS_FSTATVFS) | |
3647 | # define FD_ON_NOSUID_CHECK_OKAY | |
104d25b7 | 3648 | struct statvfs stfs; |
6439433f | 3649 | |
104d25b7 JH |
3650 | check_okay = fstatvfs(fd, &stfs) == 0; |
3651 | on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID); | |
ae3f3efd PS |
3652 | #ifdef ST_NOEXEC |
3653 | /* ST_NOEXEC certainly absent on AIX 5.1, and doesn't seem to be documented | |
3654 | on platforms where it is present. */ | |
3655 | on_noexec = check_okay && (stfs.f_flag & ST_NOEXEC); | |
3656 | #endif | |
6439433f | 3657 | # endif /* fstatvfs */ |
ac27b0f5 | 3658 | |
6439433f JH |
3659 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ |
3660 | defined(PERL_MOUNT_NOSUID) && \ | |
ae3f3efd | 3661 | defined(PERL_MOUNT_NOEXEC) && \ |
6439433f JH |
3662 | defined(HAS_FSTATFS) && \ |
3663 | defined(HAS_STRUCT_STATFS) && \ | |
3664 | defined(HAS_STRUCT_STATFS_F_FLAGS) | |
3665 | # define FD_ON_NOSUID_CHECK_OKAY | |
e688b231 | 3666 | struct statfs stfs; |
6439433f | 3667 | |
104d25b7 | 3668 | check_okay = fstatfs(fd, &stfs) == 0; |
104d25b7 | 3669 | on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID); |
ae3f3efd | 3670 | on_noexec = check_okay && (stfs.f_flags & PERL_MOUNT_NOEXEC); |
6439433f JH |
3671 | # endif /* fstatfs */ |
3672 | ||
3673 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3674 | defined(PERL_MOUNT_NOSUID) && \ | |
ae3f3efd | 3675 | defined(PERL_MOUNT_NOEXEC) && \ |
6439433f JH |
3676 | defined(HAS_FSTAT) && \ |
3677 | defined(HAS_USTAT) && \ | |
3678 | defined(HAS_GETMNT) && \ | |
3679 | defined(HAS_STRUCT_FS_DATA) && \ | |
3680 | defined(NOSTAT_ONE) | |
3681 | # define FD_ON_NOSUID_CHECK_OKAY | |
c623ac67 | 3682 | Stat_t fdst; |
6439433f | 3683 | |
0545a864 | 3684 | if (fstat(fd, &fdst) == 0) { |
6439433f JH |
3685 | struct ustat us; |
3686 | if (ustat(fdst.st_dev, &us) == 0) { | |
3687 | struct fs_data fsd; | |
3688 | /* NOSTAT_ONE here because we're not examining fields which | |
3689 | * vary between that case and STAT_ONE. */ | |
ad27e871 | 3690 | if (getmnt((int*)0, &fsd, (int)0, NOSTAT_ONE, us.f_fname) == 0) { |
6439433f JH |
3691 | size_t cmplen = sizeof(us.f_fname); |
3692 | if (sizeof(fsd.fd_req.path) < cmplen) | |
3693 | cmplen = sizeof(fsd.fd_req.path); | |
3694 | if (strnEQ(fsd.fd_req.path, us.f_fname, cmplen) && | |
3695 | fdst.st_dev == fsd.fd_req.dev) { | |
3696 | check_okay = 1; | |
3697 | on_nosuid = fsd.fd_req.flags & PERL_MOUNT_NOSUID; | |
ae3f3efd | 3698 | on_noexec = fsd.fd_req.flags & PERL_MOUNT_NOEXEC; |
6439433f JH |
3699 | } |
3700 | } | |
3701 | } | |
3702 | } | |
0545a864 | 3703 | } |
6439433f JH |
3704 | # endif /* fstat+ustat+getmnt */ |
3705 | ||
3706 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3707 | defined(HAS_GETMNTENT) && \ | |
3708 | defined(HAS_HASMNTOPT) && \ | |
ae3f3efd PS |
3709 | defined(MNTOPT_NOSUID) && \ |
3710 | defined(MNTOPT_NOEXEC) | |
6439433f JH |
3711 | # define FD_ON_NOSUID_CHECK_OKAY |
3712 | FILE *mtab = fopen("/etc/mtab", "r"); | |
3713 | struct mntent *entry; | |
c623ac67 | 3714 | Stat_t stb, fsb; |
104d25b7 JH |
3715 | |
3716 | if (mtab && (fstat(fd, &stb) == 0)) { | |
6439433f JH |
3717 | while (entry = getmntent(mtab)) { |
3718 | if (stat(entry->mnt_dir, &fsb) == 0 | |
3719 | && fsb.st_dev == stb.st_dev) | |
3720 | { | |
3721 | /* found the filesystem */ | |
3722 | check_okay = 1; | |
3723 | if (hasmntopt(entry, MNTOPT_NOSUID)) | |
3724 | on_nosuid = 1; | |
ae3f3efd PS |
3725 | if (hasmntopt(entry, MNTOPT_NOEXEC)) |
3726 | on_noexec = 1; | |
6439433f JH |
3727 | break; |
3728 | } /* A single fs may well fail its stat(). */ | |
3729 | } | |
104d25b7 JH |
3730 | } |
3731 | if (mtab) | |
6439433f JH |
3732 | fclose(mtab); |
3733 | # endif /* getmntent+hasmntopt */ | |
0545a864 | 3734 | |
ac27b0f5 | 3735 | if (!check_okay) |
ae3f3efd PS |
3736 | Perl_croak(aTHX_ "Can't check filesystem of script \"%s\" for nosuid/noexec", PL_origfilename); |
3737 | if (on_nosuid) | |
3738 | Perl_croak(aTHX_ "Setuid script \"%s\" on nosuid filesystem", PL_origfilename); | |
3739 | if (on_noexec) | |
3740 | Perl_croak(aTHX_ "Setuid script \"%s\" on noexec filesystem", PL_origfilename); | |
3741 | return ((!check_okay) || on_nosuid || on_noexec); | |
104d25b7 JH |
3742 | } |
3743 | #endif /* IAMSUID */ | |
3744 | ||
76e3520e | 3745 | STATIC void |
e1ec3a88 | 3746 | S_validate_suid(pTHX_ const char *validarg, const char *scriptname) |
79072805 | 3747 | { |
27da23d5 | 3748 | dVAR; |
155aba94 | 3749 | #ifdef IAMSUID |
ae3f3efd PS |
3750 | /* int which; */ |
3751 | #endif /* IAMSUID */ | |
96436eeb | 3752 | |
13281fa4 LW |
3753 | /* do we need to emulate setuid on scripts? */ |
3754 | ||
3755 | /* This code is for those BSD systems that have setuid #! scripts disabled | |
3756 | * in the kernel because of a security problem. Merely defining DOSUID | |
3757 | * in perl will not fix that problem, but if you have disabled setuid | |
3758 | * scripts in the kernel, this will attempt to emulate setuid and setgid | |
3759 | * on scripts that have those now-otherwise-useless bits set. The setuid | |
27e2fb84 LW |
3760 | * root version must be called suidperl or sperlN.NNN. If regular perl |
3761 | * discovers that it has opened a setuid script, it calls suidperl with | |
3762 | * the same argv that it had. If suidperl finds that the script it has | |
3763 | * just opened is NOT setuid root, it sets the effective uid back to the | |
3764 | * uid. We don't just make perl setuid root because that loses the | |
3765 | * effective uid we had before invoking perl, if it was different from the | |
3766 | * uid. | |
ae3f3efd PS |
3767 | * PSz 27 Feb 04 |
3768 | * Description/comments above do not match current workings: | |
3769 | * suidperl must be hardlinked to sperlN.NNN (that is what we exec); | |
3770 | * suidperl called with script open and name changed to /dev/fd/N/X; | |
3771 | * suidperl croaks if script is not setuid; | |
3772 | * making perl setuid would be a huge security risk (and yes, that | |
3773 | * would lose any euid we might have had). | |
13281fa4 LW |
3774 | * |
3775 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must | |
3776 | * be defined in suidperl only. suidperl must be setuid root. The | |
3777 | * Configure script will set this up for you if you want it. | |
3778 | */ | |
a687059c | 3779 | |
13281fa4 | 3780 | #ifdef DOSUID |
dd720ed5 | 3781 | const char *s, *s2; |
a0d0e21e | 3782 | |
b28d0864 | 3783 | if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */ |
cea2e8a9 | 3784 | Perl_croak(aTHX_ "Can't stat script \"%s\"",PL_origfilename); |
ae3f3efd | 3785 | if (PL_statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 | 3786 | I32 len; |
dd720ed5 | 3787 | const char *linestr; |
13281fa4 | 3788 | |
a687059c | 3789 | #ifdef IAMSUID |
ae3f3efd PS |
3790 | if (PL_fdscript < 0 || PL_suidscript != 1) |
3791 | Perl_croak(aTHX_ "Need (suid) fdscript in suidperl\n"); /* We already checked this */ | |
3792 | /* PSz 11 Nov 03 | |
3793 | * Since the script is opened by perl, not suidperl, some of these | |
3794 | * checks are superfluous. Leaving them in probably does not lower | |
3795 | * security(?!). | |
3796 | */ | |
3797 | /* PSz 27 Feb 04 | |
3798 | * Do checks even for systems with no HAS_SETREUID. | |
3799 | * We used to swap, then re-swap UIDs with | |
3800 | #ifdef HAS_SETREUID | |
3801 | if (setreuid(PL_euid,PL_uid) < 0 | |
3802 | || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid) | |
3803 | Perl_croak(aTHX_ "Can't swap uid and euid"); | |
3804 | #endif | |
3805 | #ifdef HAS_SETREUID | |
3806 | if (setreuid(PL_uid,PL_euid) < 0 | |
3807 | || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid) | |
3808 | Perl_croak(aTHX_ "Can't reswap uid and euid"); | |
3809 | #endif | |
3810 | */ | |
3811 | ||
a687059c LW |
3812 | /* On this access check to make sure the directories are readable, |
3813 | * there is actually a small window that the user could use to make | |
3814 | * filename point to an accessible directory. So there is a faint | |
3815 | * chance that someone could execute a setuid script down in a | |
3816 | * non-accessible directory. I don't know what to do about that. | |
3817 | * But I don't think it's too important. The manual lies when | |
3818 | * it says access() is useful in setuid programs. | |
ae3f3efd PS |
3819 | * |
3820 | * So, access() is pretty useless... but not harmful... do anyway. | |
a687059c | 3821 | */ |
e57400b1 | 3822 | if (PerlLIO_access(CopFILE(PL_curcop),1)) { /*double check*/ |
ae3f3efd | 3823 | Perl_croak(aTHX_ "Can't access() script\n"); |
e57400b1 | 3824 | } |
ae3f3efd | 3825 | |
a687059c LW |
3826 | /* If we can swap euid and uid, then we can determine access rights |
3827 | * with a simple stat of the file, and then compare device and | |
3828 | * inode to make sure we did stat() on the same file we opened. | |
3829 | * Then we just have to make sure he or she can execute it. | |
ae3f3efd PS |
3830 | * |
3831 | * PSz 24 Feb 04 | |
3832 | * As the script is opened by perl, not suidperl, we do not need to | |
3833 | * care much about access rights. | |
3834 | * | |
3835 | * The 'script changed' check is needed, or we can get lied to | |
3836 | * about $0 with e.g. | |
3837 | * suidperl /dev/fd/4//bin/x 4<setuidscript | |
3838 | * Without HAS_SETREUID, is it safe to stat() as root? | |
3839 | * | |
3840 | * Are there any operating systems that pass /dev/fd/xxx for setuid | |
3841 | * scripts, as suggested/described in perlsec(1)? Surely they do not | |
3842 | * pass the script name as we do, so the "script changed" test would | |
3843 | * fail for them... but we never get here with | |
3844 | * SETUID_SCRIPTS_ARE_SECURE_NOW defined. | |
3845 | * | |
3846 | * This is one place where we must "lie" about return status: not | |
3847 | * say if the stat() failed. We are doing this as root, and could | |
3848 | * be tricked into reporting existence or not of files that the | |
3849 | * "plain" user cannot even see. | |
a687059c LW |
3850 | */ |
3851 | { | |
c623ac67 | 3852 | Stat_t tmpstatbuf; |
ae3f3efd PS |
3853 | if (PerlLIO_stat(CopFILE(PL_curcop),&tmpstatbuf) < 0 || |
3854 | tmpstatbuf.st_dev != PL_statbuf.st_dev || | |
b28d0864 | 3855 | tmpstatbuf.st_ino != PL_statbuf.st_ino) { |
ae3f3efd | 3856 | Perl_croak(aTHX_ "Setuid script changed\n"); |
a687059c | 3857 | } |
ae3f3efd | 3858 | |
a687059c | 3859 | } |
ae3f3efd PS |
3860 | if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */ |
3861 | Perl_croak(aTHX_ "Real UID cannot exec script\n"); | |
3862 | ||
3863 | /* PSz 27 Feb 04 | |
3864 | * We used to do this check as the "plain" user (after swapping | |
3865 | * UIDs). But the check for nosuid and noexec filesystem is needed, | |
3866 | * and should be done even without HAS_SETREUID. (Maybe those | |
3867 | * operating systems do not have such mount options anyway...) | |
3868 | * Seems safe enough to do as root. | |
3869 | */ | |
3870 | #if !defined(NO_NOSUID_CHECK) | |
3871 | if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp))) { | |
3872 | Perl_croak(aTHX_ "Setuid script on nosuid or noexec filesystem\n"); | |
3873 | } | |
3874 | #endif | |
a687059c LW |
3875 | #endif /* IAMSUID */ |
3876 | ||
e57400b1 | 3877 | if (!S_ISREG(PL_statbuf.st_mode)) { |
ae3f3efd | 3878 | Perl_croak(aTHX_ "Setuid script not plain file\n"); |
e57400b1 | 3879 | } |
b28d0864 | 3880 | if (PL_statbuf.st_mode & S_IWOTH) |
cea2e8a9 | 3881 | Perl_croak(aTHX_ "Setuid/gid script is writable by world"); |
6b88bc9c | 3882 | PL_doswitches = FALSE; /* -s is insecure in suid */ |
ae3f3efd | 3883 | /* PSz 13 Nov 03 But -s was caught elsewhere ... so unsetting it here is useless(?!) */ |
57843af0 | 3884 | CopLINE_inc(PL_curcop); |
dd720ed5 | 3885 | linestr = SvPV_nolen_const(PL_linestr); |
6b88bc9c | 3886 | if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch || |
dd720ed5 | 3887 | strnNE(linestr,"#!",2) ) /* required even on Sys V */ |
cea2e8a9 | 3888 | Perl_croak(aTHX_ "No #! line"); |
dd720ed5 NC |
3889 | linestr+=2; |
3890 | s = linestr; | |
ae3f3efd PS |
3891 | /* PSz 27 Feb 04 */ |
3892 | /* Sanity check on line length */ | |
3893 | if (strlen(s) < 1 || strlen(s) > 4000) | |
3894 | Perl_croak(aTHX_ "Very long #! line"); | |
3895 | /* Allow more than a single space after #! */ | |
3896 | while (isSPACE(*s)) s++; | |
3897 | /* Sanity check on buffer end */ | |
3898 | while ((*s) && !isSPACE(*s)) s++; | |
dd720ed5 | 3899 | for (s2 = s; (s2 > linestr && |
3792a11b NC |
3900 | (isDIGIT(s2[-1]) || s2[-1] == '.' || s2[-1] == '_' |
3901 | || s2[-1] == '-')); s2--) ; | |
ae3f3efd | 3902 | /* Sanity check on buffer start */ |
dd720ed5 NC |
3903 | if ( (s2-4 < linestr || strnNE(s2-4,"perl",4)) && |
3904 | (s-9 < linestr || strnNE(s-9,"perl",4)) ) | |
cea2e8a9 | 3905 | Perl_croak(aTHX_ "Not a perl script"); |
a687059c | 3906 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 LW |
3907 | /* |
3908 | * #! arg must be what we saw above. They can invoke it by | |
3909 | * mentioning suidperl explicitly, but they may not add any strange | |
3910 | * arguments beyond what #! says if they do invoke suidperl that way. | |
3911 | */ | |
ae3f3efd PS |
3912 | /* |
3913 | * The way validarg was set up, we rely on the kernel to start | |
3914 | * scripts with argv[1] set to contain all #! line switches (the | |
3915 | * whole line). | |
3916 | */ | |
3917 | /* | |
3918 | * Check that we got all the arguments listed in the #! line (not | |
3919 | * just that there are no extraneous arguments). Might not matter | |
3920 | * much, as switches from #! line seem to be acted upon (also), and | |
3921 | * so may be checked and trapped in perl. But, security checks must | |
3922 | * be done in suidperl and not deferred to perl. Note that suidperl | |
3923 | * does not get around to parsing (and checking) the switches on | |
3924 | * the #! line (but execs perl sooner). | |
3925 | * Allow (require) a trailing newline (which may be of two | |
3926 | * characters on some architectures?) (but no other trailing | |
3927 | * whitespace). | |
3928 | */ | |
13281fa4 LW |
3929 | len = strlen(validarg); |
3930 | if (strEQ(validarg," PHOOEY ") || | |
ae3f3efd PS |
3931 | strnNE(s,validarg,len) || !isSPACE(s[len]) || |
3932 | !(strlen(s) == len+1 || (strlen(s) == len+2 && isSPACE(s[len+1])))) | |
cea2e8a9 | 3933 | Perl_croak(aTHX_ "Args must match #! line"); |
a687059c LW |
3934 | |
3935 | #ifndef IAMSUID | |
ae3f3efd PS |
3936 | if (PL_fdscript < 0 && |
3937 | PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) && | |
b28d0864 NIS |
3938 | PL_euid == PL_statbuf.st_uid) |
3939 | if (!PL_do_undump) | |
cea2e8a9 | 3940 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
11fb1898 | 3941 | FIX YOUR KERNEL, OR PUT A C WRAPPER AROUND THIS SCRIPT!\n"); |
a687059c | 3942 | #endif /* IAMSUID */ |
13281fa4 | 3943 | |
ae3f3efd PS |
3944 | if (PL_fdscript < 0 && |
3945 | PL_euid) { /* oops, we're not the setuid root perl */ | |
3946 | /* PSz 18 Feb 04 | |
3947 | * When root runs a setuid script, we do not go through the same | |
3948 | * steps of execing sperl and then perl with fd scripts, but | |
3949 | * simply set up UIDs within the same perl invocation; so do | |
3950 | * not have the same checks (on options, whatever) that we have | |
3951 | * for plain users. No problem really: would have to be a script | |
3952 | * that does not actually work for plain users; and if root is | |
3953 | * foolish and can be persuaded to run such an unsafe script, he | |
3954 | * might run also non-setuid ones, and deserves what he gets. | |
3955 | * | |
3956 | * Or, we might drop the PL_euid check above (and rely just on | |
3957 | * PL_fdscript to avoid loops), and do the execs | |
3958 | * even for root. | |
3959 | */ | |
13281fa4 | 3960 | #ifndef IAMSUID |
ae3f3efd PS |
3961 | int which; |
3962 | /* PSz 11 Nov 03 | |
3963 | * Pass fd script to suidperl. | |
3964 | * Exec suidperl, substituting fd script for scriptname. | |
3965 | * Pass script name as "subdir" of fd, which perl will grok; | |
3966 | * in fact will use that to distinguish this from "normal" | |
3967 | * usage, see comments above. | |
3968 | */ | |
3969 | PerlIO_rewind(PL_rsfp); | |
3970 | PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
3971 | /* PSz 27 Feb 04 Sanity checks on scriptname */ | |
3972 | if ((!scriptname) || (!*scriptname) ) { | |
3973 | Perl_croak(aTHX_ "No setuid script name\n"); | |
3974 | } | |
3975 | if (*scriptname == '-') { | |
3976 | Perl_croak(aTHX_ "Setuid script name may not begin with dash\n"); | |
3977 | /* Or we might confuse it with an option when replacing | |
3978 | * name in argument list, below (though we do pointer, not | |
3979 | * string, comparisons). | |
3980 | */ | |
3981 | } | |
3982 | for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; | |
3983 | if (!PL_origargv[which]) { | |
3984 | Perl_croak(aTHX_ "Can't change argv to have fd script\n"); | |
3985 | } | |
3986 | PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s", | |
3987 | PerlIO_fileno(PL_rsfp), PL_origargv[which])); | |
3988 | #if defined(HAS_FCNTL) && defined(F_SETFD) | |
3989 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */ | |
3990 | #endif | |
b35112e7 | 3991 | PERL_FPU_PRE_EXEC |
a7cb1f99 | 3992 | PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT, BIN_EXP, |
273cf8d1 GS |
3993 | (int)PERL_REVISION, (int)PERL_VERSION, |
3994 | (int)PERL_SUBVERSION), PL_origargv); | |
b35112e7 | 3995 | PERL_FPU_POST_EXEC |
ae3f3efd PS |
3996 | #endif /* IAMSUID */ |
3997 | Perl_croak(aTHX_ "Can't do setuid (cannot exec sperl)\n"); | |
13281fa4 LW |
3998 | } |
3999 | ||
b28d0864 | 4000 | if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) { |
ae3f3efd PS |
4001 | /* PSz 26 Feb 04 |
4002 | * This seems back to front: we try HAS_SETEGID first; if not available | |
4003 | * then try HAS_SETREGID; as a last chance we try HAS_SETRESGID. May be OK | |
4004 | * in the sense that we only want to set EGID; but are there any machines | |
4005 | * with either of the latter, but not the former? Same with UID, later. | |
4006 | */ | |
fe14fcc3 | 4007 | #ifdef HAS_SETEGID |
b28d0864 | 4008 | (void)setegid(PL_statbuf.st_gid); |
a687059c | 4009 | #else |
fe14fcc3 | 4010 | #ifdef HAS_SETREGID |
b28d0864 | 4011 | (void)setregid((Gid_t)-1,PL_statbuf.st_gid); |
85e6fe83 LW |
4012 | #else |
4013 | #ifdef HAS_SETRESGID | |
b28d0864 | 4014 | (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1); |
a687059c | 4015 | #else |
b28d0864 | 4016 | PerlProc_setgid(PL_statbuf.st_gid); |
a687059c LW |
4017 | #endif |
4018 | #endif | |
85e6fe83 | 4019 | #endif |
b28d0864 | 4020 | if (PerlProc_getegid() != PL_statbuf.st_gid) |
cea2e8a9 | 4021 | Perl_croak(aTHX_ "Can't do setegid!\n"); |
83025b21 | 4022 | } |
b28d0864 NIS |
4023 | if (PL_statbuf.st_mode & S_ISUID) { |
4024 | if (PL_statbuf.st_uid != PL_euid) | |
fe14fcc3 | 4025 | #ifdef HAS_SETEUID |
b28d0864 | 4026 | (void)seteuid(PL_statbuf.st_uid); /* all that for this */ |
a687059c | 4027 | #else |
fe14fcc3 | 4028 | #ifdef HAS_SETREUID |
b28d0864 | 4029 | (void)setreuid((Uid_t)-1,PL_statbuf.st_uid); |
85e6fe83 LW |
4030 | #else |
4031 | #ifdef HAS_SETRESUID | |
b28d0864 | 4032 | (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1); |
a687059c | 4033 | #else |
b28d0864 | 4034 | PerlProc_setuid(PL_statbuf.st_uid); |
a687059c LW |
4035 | #endif |
4036 | #endif | |
85e6fe83 | 4037 | #endif |
b28d0864 | 4038 | if (PerlProc_geteuid() != PL_statbuf.st_uid) |
cea2e8a9 | 4039 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
a687059c | 4040 | } |
b28d0864 | 4041 | else if (PL_uid) { /* oops, mustn't run as root */ |
fe14fcc3 | 4042 | #ifdef HAS_SETEUID |
b28d0864 | 4043 | (void)seteuid((Uid_t)PL_uid); |
a687059c | 4044 | #else |
fe14fcc3 | 4045 | #ifdef HAS_SETREUID |
b28d0864 | 4046 | (void)setreuid((Uid_t)-1,(Uid_t)PL_uid); |
a687059c | 4047 | #else |
85e6fe83 | 4048 | #ifdef HAS_SETRESUID |
b28d0864 | 4049 | (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1); |
85e6fe83 | 4050 | #else |
b28d0864 | 4051 | PerlProc_setuid((Uid_t)PL_uid); |
85e6fe83 | 4052 | #endif |
a687059c LW |
4053 | #endif |
4054 | #endif | |
b28d0864 | 4055 | if (PerlProc_geteuid() != PL_uid) |
cea2e8a9 | 4056 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
83025b21 | 4057 | } |
748a9306 | 4058 | init_ids(); |
b28d0864 | 4059 | if (!cando(S_IXUSR,TRUE,&PL_statbuf)) |
ae3f3efd | 4060 | Perl_croak(aTHX_ "Effective UID cannot exec script\n"); /* they can't do this */ |
13281fa4 LW |
4061 | } |
4062 | #ifdef IAMSUID | |
ae3f3efd | 4063 | else if (PL_preprocess) /* PSz 13 Nov 03 Caught elsewhere, useless(?!) here */ |
cea2e8a9 | 4064 | Perl_croak(aTHX_ "-P not allowed for setuid/setgid script\n"); |
ae3f3efd PS |
4065 | else if (PL_fdscript < 0 || PL_suidscript != 1) |
4066 | /* PSz 13 Nov 03 Caught elsewhere, useless(?!) here */ | |
4067 | Perl_croak(aTHX_ "(suid) fdscript needed in suidperl\n"); | |
e57400b1 | 4068 | else { |
ae3f3efd PS |
4069 | /* PSz 16 Sep 03 Keep neat error message */ |
4070 | Perl_croak(aTHX_ "Script is not setuid/setgid in suidperl\n"); | |
e57400b1 | 4071 | } |
96436eeb | 4072 | |
4073 | /* We absolutely must clear out any saved ids here, so we */ | |
4074 | /* exec the real perl, substituting fd script for scriptname. */ | |
4075 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ | |
ae3f3efd PS |
4076 | /* |
4077 | * It might be thought that using setresgid and/or setresuid (changed to | |
4078 | * set the saved IDs) above might obviate the need to exec, and we could | |
4079 | * go on to "do the perl thing". | |
4080 | * | |
4081 | * Is there such a thing as "saved GID", and is that set for setuid (but | |
4082 | * not setgid) execution like suidperl? Without exec, it would not be | |
4083 | * cleared for setuid (but not setgid) scripts (or might need a dummy | |
4084 | * setresgid). | |
4085 | * | |
4086 | * We need suidperl to do the exact same argument checking that perl | |
4087 | * does. Thus it cannot be very small; while it could be significantly | |
4088 | * smaller, it is safer (simpler?) to make it essentially the same | |
4089 | * binary as perl (but they are not identical). - Maybe could defer that | |
4090 | * check to the invoked perl, and suidperl be a tiny wrapper instead; | |
4091 | * but prefer to do thorough checks in suidperl itself. Such deferral | |
4092 | * would make suidperl security rely on perl, a design no-no. | |
4093 | * | |
4094 | * Setuid things should be short and simple, thus easy to understand and | |
4095 | * verify. They should do their "own thing", without influence by | |
4096 | * attackers. It may help if their internal execution flow is fixed, | |
4097 | * regardless of platform: it may be best to exec anyway. | |
4098 | * | |
4099 | * Suidperl should at least be conceptually simple: a wrapper only, | |
4100 | * never to do any real perl. Maybe we should put | |
4101 | * #ifdef IAMSUID | |
4102 | * Perl_croak(aTHX_ "Suidperl should never do real perl\n"); | |
4103 | * #endif | |
4104 | * into the perly bits. | |
4105 | */ | |
b28d0864 NIS |
4106 | PerlIO_rewind(PL_rsfp); |
4107 | PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
ae3f3efd PS |
4108 | /* PSz 11 Nov 03 |
4109 | * Keep original arguments: suidperl already has fd script. | |
4110 | */ | |
4111 | /* for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; */ | |
4112 | /* if (!PL_origargv[which]) { */ | |
4113 | /* errno = EPERM; */ | |
4114 | /* Perl_croak(aTHX_ "Permission denied\n"); */ | |
4115 | /* } */ | |
4116 | /* PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s", */ | |
4117 | /* PerlIO_fileno(PL_rsfp), PL_origargv[which])); */ | |
96436eeb | 4118 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
b28d0864 | 4119 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb | 4120 | #endif |
b35112e7 | 4121 | PERL_FPU_PRE_EXEC |
a7cb1f99 | 4122 | PerlProc_execv(Perl_form(aTHX_ "%s/perl"PERL_FS_VER_FMT, BIN_EXP, |
273cf8d1 GS |
4123 | (int)PERL_REVISION, (int)PERL_VERSION, |
4124 | (int)PERL_SUBVERSION), PL_origargv);/* try again */ | |
b35112e7 | 4125 | PERL_FPU_POST_EXEC |
ae3f3efd | 4126 | Perl_croak(aTHX_ "Can't do setuid (suidperl cannot exec perl)\n"); |
13281fa4 | 4127 | #endif /* IAMSUID */ |
a687059c | 4128 | #else /* !DOSUID */ |
3280af22 | 4129 | if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */ |
a687059c | 4130 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW |
b28d0864 NIS |
4131 | PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */ |
4132 | if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID) | |
a687059c | 4133 | || |
b28d0864 | 4134 | (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID) |
a687059c | 4135 | ) |
b28d0864 | 4136 | if (!PL_do_undump) |
cea2e8a9 | 4137 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
4138 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
4139 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ | |
4140 | /* not set-id, must be wrapped */ | |
a687059c | 4141 | } |
13281fa4 | 4142 | #endif /* DOSUID */ |
dd374669 AL |
4143 | (void)validarg; |
4144 | (void)scriptname; | |
79072805 | 4145 | } |
13281fa4 | 4146 | |
76e3520e | 4147 | STATIC void |
cea2e8a9 | 4148 | S_find_beginning(pTHX) |
79072805 | 4149 | { |
dd374669 AL |
4150 | register char *s; |
4151 | register const char *s2; | |
e55ac0fa HS |
4152 | #ifdef MACOS_TRADITIONAL |
4153 | int maclines = 0; | |
4154 | #endif | |
33b78306 LW |
4155 | |
4156 | /* skip forward in input to the real script? */ | |
4157 | ||
bbce6d69 | 4158 | forbid_setid("-x"); |
bf4acbe4 | 4159 | #ifdef MACOS_TRADITIONAL |
084592ab | 4160 | /* Since the Mac OS does not honor #! arguments for us, we do it ourselves */ |
ac27b0f5 | 4161 | |
bf4acbe4 GS |
4162 | while (PL_doextract || gMacPerl_AlwaysExtract) { |
4163 | if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch) { | |
4164 | if (!gMacPerl_AlwaysExtract) | |
4165 | Perl_croak(aTHX_ "No Perl script found in input\n"); | |
e55ac0fa | 4166 | |
bf4acbe4 GS |
4167 | if (PL_doextract) /* require explicit override ? */ |
4168 | if (!OverrideExtract(PL_origfilename)) | |
4169 | Perl_croak(aTHX_ "User aborted script\n"); | |
4170 | else | |
4171 | PL_doextract = FALSE; | |
e55ac0fa | 4172 | |
bf4acbe4 GS |
4173 | /* Pater peccavi, file does not have #! */ |
4174 | PerlIO_rewind(PL_rsfp); | |
e55ac0fa | 4175 | |
bf4acbe4 GS |
4176 | break; |
4177 | } | |
4178 | #else | |
3280af22 NIS |
4179 | while (PL_doextract) { |
4180 | if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch) | |
cea2e8a9 | 4181 | Perl_croak(aTHX_ "No Perl script found in input\n"); |
bf4acbe4 | 4182 | #endif |
4f0c37ba IZ |
4183 | s2 = s; |
4184 | if (*s == '#' && s[1] == '!' && ((s = instr(s,"perl")) || (s = instr(s2,"PERL")))) { | |
3280af22 NIS |
4185 | PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */ |
4186 | PL_doextract = FALSE; | |
6e72f9df | 4187 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
4188 | s2 = s; | |
4189 | while (*s == ' ' || *s == '\t') s++; | |
4190 | if (*s++ == '-') { | |
3792a11b NC |
4191 | while (isDIGIT(s2[-1]) || s2[-1] == '-' || s2[-1] == '.' |
4192 | || s2[-1] == '_') s2--; | |
6e72f9df | 4193 | if (strnEQ(s2-4,"perl",4)) |
155aba94 GS |
4194 | while ((s = moreswitches(s))) |
4195 | ; | |
33b78306 | 4196 | } |
95e8664e | 4197 | #ifdef MACOS_TRADITIONAL |
e55ac0fa HS |
4198 | /* We are always searching for the #!perl line in MacPerl, |
4199 | * so if we find it, still keep the line count correct | |
4200 | * by counting lines we already skipped over | |
4201 | */ | |
4202 | for (; maclines > 0 ; maclines--) | |
4203 | PerlIO_ungetc(PL_rsfp, '\n'); | |
4204 | ||
95e8664e | 4205 | break; |
e55ac0fa HS |
4206 | |
4207 | /* gMacPerl_AlwaysExtract is false in MPW tool */ | |
4208 | } else if (gMacPerl_AlwaysExtract) { | |
4209 | ++maclines; | |
95e8664e | 4210 | #endif |
83025b21 LW |
4211 | } |
4212 | } | |
4213 | } | |
4214 | ||
afe37c7d | 4215 | |
76e3520e | 4216 | STATIC void |
cea2e8a9 | 4217 | S_init_ids(pTHX) |
352d5a3a | 4218 | { |
d8eceb89 JH |
4219 | PL_uid = PerlProc_getuid(); |
4220 | PL_euid = PerlProc_geteuid(); | |
4221 | PL_gid = PerlProc_getgid(); | |
4222 | PL_egid = PerlProc_getegid(); | |
748a9306 | 4223 | #ifdef VMS |
b28d0864 NIS |
4224 | PL_uid |= PL_gid << 16; |
4225 | PL_euid |= PL_egid << 16; | |
748a9306 | 4226 | #endif |
22f7c9c9 JH |
4227 | /* Should not happen: */ |
4228 | CHECK_MALLOC_TAINT(PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
3280af22 | 4229 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
ae3f3efd PS |
4230 | /* BUG */ |
4231 | /* PSz 27 Feb 04 | |
4232 | * Should go by suidscript, not uid!=euid: why disallow | |
4233 | * system("ls") in scripts run from setuid things? | |
4234 | * Or, is this run before we check arguments and set suidscript? | |
4235 | * What about SETUID_SCRIPTS_ARE_SECURE_NOW: could we use fdscript then? | |
4236 | * (We never have suidscript, can we be sure to have fdscript?) | |
4237 | * Or must then go by UID checks? See comments in forbid_setid also. | |
4238 | */ | |
748a9306 | 4239 | } |
79072805 | 4240 | |
a0643315 JH |
4241 | /* This is used very early in the lifetime of the program, |
4242 | * before even the options are parsed, so PL_tainting has | |
b0891165 | 4243 | * not been initialized properly. */ |
af419de7 | 4244 | bool |
8f42b153 | 4245 | Perl_doing_taint(int argc, char *argv[], char *envp[]) |
22f7c9c9 | 4246 | { |
c3446a78 JH |
4247 | #ifndef PERL_IMPLICIT_SYS |
4248 | /* If we have PERL_IMPLICIT_SYS we can't call getuid() et alia | |
4249 | * before we have an interpreter-- and the whole point of this | |
4250 | * function is to be called at such an early stage. If you are on | |
4251 | * a system with PERL_IMPLICIT_SYS but you do have a concept of | |
4252 | * "tainted because running with altered effective ids', you'll | |
4253 | * have to add your own checks somewhere in here. The two most | |
4254 | * known samples of 'implicitness' are Win32 and NetWare, neither | |
4255 | * of which has much of concept of 'uids'. */ | |
af419de7 | 4256 | int uid = PerlProc_getuid(); |
22f7c9c9 | 4257 | int euid = PerlProc_geteuid(); |
af419de7 | 4258 | int gid = PerlProc_getgid(); |
22f7c9c9 | 4259 | int egid = PerlProc_getegid(); |
6867be6d | 4260 | (void)envp; |
22f7c9c9 JH |
4261 | |
4262 | #ifdef VMS | |
af419de7 | 4263 | uid |= gid << 16; |
22f7c9c9 JH |
4264 | euid |= egid << 16; |
4265 | #endif | |
4266 | if (uid && (euid != uid || egid != gid)) | |
4267 | return 1; | |
c3446a78 | 4268 | #endif /* !PERL_IMPLICIT_SYS */ |
af419de7 JH |
4269 | /* This is a really primitive check; environment gets ignored only |
4270 | * if -T are the first chars together; otherwise one gets | |
4271 | * "Too late" message. */ | |
22f7c9c9 JH |
4272 | if ( argc > 1 && argv[1][0] == '-' |
4273 | && (argv[1][1] == 't' || argv[1][1] == 'T') ) | |
4274 | return 1; | |
4275 | return 0; | |
4276 | } | |
22f7c9c9 | 4277 | |
76e3520e | 4278 | STATIC void |
e1ec3a88 | 4279 | S_forbid_setid(pTHX_ const char *s) |
bbce6d69 | 4280 | { |
ae3f3efd | 4281 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
3280af22 | 4282 | if (PL_euid != PL_uid) |
cea2e8a9 | 4283 | Perl_croak(aTHX_ "No %s allowed while running setuid", s); |
3280af22 | 4284 | if (PL_egid != PL_gid) |
cea2e8a9 | 4285 | Perl_croak(aTHX_ "No %s allowed while running setgid", s); |
ae3f3efd PS |
4286 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ |
4287 | /* PSz 29 Feb 04 | |
4288 | * Checks for UID/GID above "wrong": why disallow | |
4289 | * perl -e 'print "Hello\n"' | |
4290 | * from within setuid things?? Simply drop them: replaced by | |
4291 | * fdscript/suidscript and #ifdef IAMSUID checks below. | |
4292 | * | |
4293 | * This may be too late for command-line switches. Will catch those on | |
4294 | * the #! line, after finding the script name and setting up | |
4295 | * fdscript/suidscript. Note that suidperl does not get around to | |
4296 | * parsing (and checking) the switches on the #! line, but checks that | |
4297 | * the two sets are identical. | |
4298 | * | |
4299 | * With SETUID_SCRIPTS_ARE_SECURE_NOW, could we use fdscript, also or | |
4300 | * instead, or would that be "too late"? (We never have suidscript, can | |
4301 | * we be sure to have fdscript?) | |
4302 | * | |
4303 | * Catch things with suidscript (in descendant of suidperl), even with | |
4304 | * right UID/GID. Was already checked in suidperl, with #ifdef IAMSUID, | |
4305 | * below; but I am paranoid. | |
4306 | * | |
4307 | * Also see comments about root running a setuid script, elsewhere. | |
4308 | */ | |
4309 | if (PL_suidscript >= 0) | |
4310 | Perl_croak(aTHX_ "No %s allowed with (suid) fdscript", s); | |
4311 | #ifdef IAMSUID | |
4312 | /* PSz 11 Nov 03 Catch it in suidperl, always! */ | |
4313 | Perl_croak(aTHX_ "No %s allowed in suidperl", s); | |
4314 | #endif /* IAMSUID */ | |
bbce6d69 | 4315 | } |
4316 | ||
1ee4443e IZ |
4317 | void |
4318 | Perl_init_debugger(pTHX) | |
748a9306 | 4319 | { |
1ee4443e IZ |
4320 | HV *ostash = PL_curstash; |
4321 | ||
3280af22 | 4322 | PL_curstash = PL_debstash; |
7619c85e | 4323 | PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("DB::args", GV_ADDMULTI, SVt_PVAV)))); |
3280af22 | 4324 | AvREAL_off(PL_dbargs); |
7619c85e RG |
4325 | PL_DBgv = gv_fetchpv("DB::DB", GV_ADDMULTI, SVt_PVGV); |
4326 | PL_DBline = gv_fetchpv("DB::dbline", GV_ADDMULTI, SVt_PVAV); | |
4327 | PL_DBsub = gv_HVadd(gv_fetchpv("DB::sub", GV_ADDMULTI, SVt_PVHV)); | |
7619c85e | 4328 | PL_DBsingle = GvSV((gv_fetchpv("DB::single", GV_ADDMULTI, SVt_PV))); |
ac27b0f5 | 4329 | sv_setiv(PL_DBsingle, 0); |
7619c85e | 4330 | PL_DBtrace = GvSV((gv_fetchpv("DB::trace", GV_ADDMULTI, SVt_PV))); |
ac27b0f5 | 4331 | sv_setiv(PL_DBtrace, 0); |
7619c85e | 4332 | PL_DBsignal = GvSV((gv_fetchpv("DB::signal", GV_ADDMULTI, SVt_PV))); |
ac27b0f5 | 4333 | sv_setiv(PL_DBsignal, 0); |
bf9cdc68 | 4334 | PL_DBassertion = GvSV((gv_fetchpv("DB::assertion", GV_ADDMULTI, SVt_PV))); |
06492da6 | 4335 | sv_setiv(PL_DBassertion, 0); |
1ee4443e | 4336 | PL_curstash = ostash; |
352d5a3a LW |
4337 | } |
4338 | ||
2ce36478 SM |
4339 | #ifndef STRESS_REALLOC |
4340 | #define REASONABLE(size) (size) | |
4341 | #else | |
4342 | #define REASONABLE(size) (1) /* unreasonable */ | |
4343 | #endif | |
4344 | ||
11343788 | 4345 | void |
cea2e8a9 | 4346 | Perl_init_stacks(pTHX) |
79072805 | 4347 | { |
e336de0d | 4348 | /* start with 128-item stack and 8K cxstack */ |
3280af22 | 4349 | PL_curstackinfo = new_stackinfo(REASONABLE(128), |
e336de0d | 4350 | REASONABLE(8192/sizeof(PERL_CONTEXT) - 1)); |
3280af22 NIS |
4351 | PL_curstackinfo->si_type = PERLSI_MAIN; |
4352 | PL_curstack = PL_curstackinfo->si_stack; | |
4353 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ | |
79072805 | 4354 | |
3280af22 NIS |
4355 | PL_stack_base = AvARRAY(PL_curstack); |
4356 | PL_stack_sp = PL_stack_base; | |
4357 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
8990e307 | 4358 | |
a02a5408 | 4359 | Newx(PL_tmps_stack,REASONABLE(128),SV*); |
3280af22 NIS |
4360 | PL_tmps_floor = -1; |
4361 | PL_tmps_ix = -1; | |
4362 | PL_tmps_max = REASONABLE(128); | |
8990e307 | 4363 | |
a02a5408 | 4364 | Newx(PL_markstack,REASONABLE(32),I32); |
3280af22 NIS |
4365 | PL_markstack_ptr = PL_markstack; |
4366 | PL_markstack_max = PL_markstack + REASONABLE(32); | |
79072805 | 4367 | |
ce2f7c3b | 4368 | SET_MARK_OFFSET; |
e336de0d | 4369 | |
a02a5408 | 4370 | Newx(PL_scopestack,REASONABLE(32),I32); |
3280af22 NIS |
4371 | PL_scopestack_ix = 0; |
4372 | PL_scopestack_max = REASONABLE(32); | |
79072805 | 4373 | |
a02a5408 | 4374 | Newx(PL_savestack,REASONABLE(128),ANY); |
3280af22 NIS |
4375 | PL_savestack_ix = 0; |
4376 | PL_savestack_max = REASONABLE(128); | |
378cc40b | 4377 | } |
33b78306 | 4378 | |
2ce36478 SM |
4379 | #undef REASONABLE |
4380 | ||
76e3520e | 4381 | STATIC void |
cea2e8a9 | 4382 | S_nuke_stacks(pTHX) |
6e72f9df | 4383 | { |
3280af22 NIS |
4384 | while (PL_curstackinfo->si_next) |
4385 | PL_curstackinfo = PL_curstackinfo->si_next; | |
4386 | while (PL_curstackinfo) { | |
4387 | PERL_SI *p = PL_curstackinfo->si_prev; | |
bac4b2ad | 4388 | /* curstackinfo->si_stack got nuked by sv_free_arenas() */ |
3280af22 NIS |
4389 | Safefree(PL_curstackinfo->si_cxstack); |
4390 | Safefree(PL_curstackinfo); | |
4391 | PL_curstackinfo = p; | |
e336de0d | 4392 | } |
3280af22 NIS |
4393 | Safefree(PL_tmps_stack); |
4394 | Safefree(PL_markstack); | |
4395 | Safefree(PL_scopestack); | |
4396 | Safefree(PL_savestack); | |
378cc40b | 4397 | } |
33b78306 | 4398 | |
76e3520e | 4399 | STATIC void |
cea2e8a9 | 4400 | S_init_lexer(pTHX) |
8990e307 | 4401 | { |
06039172 | 4402 | PerlIO *tmpfp; |
3280af22 NIS |
4403 | tmpfp = PL_rsfp; |
4404 | PL_rsfp = Nullfp; | |
4405 | lex_start(PL_linestr); | |
4406 | PL_rsfp = tmpfp; | |
79cb57f6 | 4407 | PL_subname = newSVpvn("main",4); |
8990e307 LW |
4408 | } |
4409 | ||
76e3520e | 4410 | STATIC void |
cea2e8a9 | 4411 | S_init_predump_symbols(pTHX) |
45d8adaa | 4412 | { |
93a17b20 | 4413 | GV *tmpgv; |
af8c498a | 4414 | IO *io; |
79072805 | 4415 | |
864dbfa3 | 4416 | sv_setpvn(get_sv("\"", TRUE), " ", 1); |
3280af22 NIS |
4417 | PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
4418 | GvMULTI_on(PL_stdingv); | |
af8c498a | 4419 | io = GvIOp(PL_stdingv); |
a04651f4 | 4420 | IoTYPE(io) = IoTYPE_RDONLY; |
af8c498a | 4421 | IoIFP(io) = PerlIO_stdin(); |
adbc6bb1 | 4422 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 | 4423 | GvMULTI_on(tmpgv); |
af8c498a | 4424 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io); |
79072805 | 4425 | |
85e6fe83 | 4426 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 | 4427 | GvMULTI_on(tmpgv); |
af8c498a | 4428 | io = GvIOp(tmpgv); |
a04651f4 | 4429 | IoTYPE(io) = IoTYPE_WRONLY; |
af8c498a | 4430 | IoOFP(io) = IoIFP(io) = PerlIO_stdout(); |
4633a7c4 | 4431 | setdefout(tmpgv); |
adbc6bb1 | 4432 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 | 4433 | GvMULTI_on(tmpgv); |
af8c498a | 4434 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io); |
79072805 | 4435 | |
bf49b057 GS |
4436 | PL_stderrgv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
4437 | GvMULTI_on(PL_stderrgv); | |
4438 | io = GvIOp(PL_stderrgv); | |
a04651f4 | 4439 | IoTYPE(io) = IoTYPE_WRONLY; |
af8c498a | 4440 | IoOFP(io) = IoIFP(io) = PerlIO_stderr(); |
adbc6bb1 | 4441 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 | 4442 | GvMULTI_on(tmpgv); |
af8c498a | 4443 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io); |
79072805 | 4444 | |
3280af22 | 4445 | PL_statname = NEWSV(66,0); /* last filename we did stat on */ |
ab821d7f | 4446 | |
43c5f42d | 4447 | Safefree(PL_osname); |
bf4acbe4 | 4448 | PL_osname = savepv(OSNAME); |
79072805 | 4449 | } |
33b78306 | 4450 | |
a11ec5a9 | 4451 | void |
8f42b153 | 4452 | Perl_init_argv_symbols(pTHX_ register int argc, register char **argv) |
33b78306 | 4453 | { |
79072805 | 4454 | argc--,argv++; /* skip name of script */ |
3280af22 | 4455 | if (PL_doswitches) { |
79072805 | 4456 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
aec46f14 | 4457 | char *s; |
79072805 LW |
4458 | if (!argv[0][1]) |
4459 | break; | |
379d538a | 4460 | if (argv[0][1] == '-' && !argv[0][2]) { |
79072805 LW |
4461 | argc--,argv++; |
4462 | break; | |
4463 | } | |
155aba94 | 4464 | if ((s = strchr(argv[0], '='))) { |
79072805 | 4465 | *s++ = '\0'; |
85e6fe83 | 4466 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 LW |
4467 | } |
4468 | else | |
85e6fe83 | 4469 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 | 4470 | } |
79072805 | 4471 | } |
a11ec5a9 RGS |
4472 | if ((PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV))) { |
4473 | GvMULTI_on(PL_argvgv); | |
4474 | (void)gv_AVadd(PL_argvgv); | |
4475 | av_clear(GvAVn(PL_argvgv)); | |
4476 | for (; argc > 0; argc--,argv++) { | |
aec46f14 | 4477 | SV * const sv = newSVpv(argv[0],0); |
a11ec5a9 | 4478 | av_push(GvAVn(PL_argvgv),sv); |
ce81ff12 JH |
4479 | if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) { |
4480 | if (PL_unicode & PERL_UNICODE_ARGV_FLAG) | |
4481 | SvUTF8_on(sv); | |
4482 | } | |
a05d7ebb JH |
4483 | if (PL_unicode & PERL_UNICODE_WIDESYSCALLS_FLAG) /* Sarathy? */ |
4484 | (void)sv_utf8_decode(sv); | |
a11ec5a9 RGS |
4485 | } |
4486 | } | |
4487 | } | |
4488 | ||
4489 | STATIC void | |
4490 | S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env) | |
4491 | { | |
27da23d5 | 4492 | dVAR; |
a11ec5a9 | 4493 | GV* tmpgv; |
a11ec5a9 | 4494 | |
3280af22 NIS |
4495 | PL_toptarget = NEWSV(0,0); |
4496 | sv_upgrade(PL_toptarget, SVt_PVFM); | |
4497 | sv_setpvn(PL_toptarget, "", 0); | |
4498 | PL_bodytarget = NEWSV(0,0); | |
4499 | sv_upgrade(PL_bodytarget, SVt_PVFM); | |
4500 | sv_setpvn(PL_bodytarget, "", 0); | |
4501 | PL_formtarget = PL_bodytarget; | |
79072805 | 4502 | |
bbce6d69 | 4503 | TAINT; |
a11ec5a9 RGS |
4504 | |
4505 | init_argv_symbols(argc,argv); | |
4506 | ||
155aba94 | 4507 | if ((tmpgv = gv_fetchpv("0",TRUE, SVt_PV))) { |
bf4acbe4 GS |
4508 | #ifdef MACOS_TRADITIONAL |
4509 | /* $0 is not majick on a Mac */ | |
4510 | sv_setpv(GvSV(tmpgv),MacPerl_MPWFileName(PL_origfilename)); | |
4511 | #else | |
3280af22 | 4512 | sv_setpv(GvSV(tmpgv),PL_origfilename); |
79072805 | 4513 | magicname("0", "0", 1); |
bf4acbe4 | 4514 | #endif |
79072805 | 4515 | } |
155aba94 | 4516 | if ((PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV))) { |
79072805 | 4517 | HV *hv; |
3280af22 NIS |
4518 | GvMULTI_on(PL_envgv); |
4519 | hv = GvHVn(PL_envgv); | |
14befaf4 | 4520 | hv_magic(hv, Nullgv, PERL_MAGIC_env); |
2f42fcb0 | 4521 | #ifndef PERL_MICRO |
fa6a1c44 | 4522 | #ifdef USE_ENVIRON_ARRAY |
4633a7c4 LW |
4523 | /* Note that if the supplied env parameter is actually a copy |
4524 | of the global environ then it may now point to free'd memory | |
4525 | if the environment has been modified since. To avoid this | |
4526 | problem we treat env==NULL as meaning 'use the default' | |
4527 | */ | |
4528 | if (!env) | |
4529 | env = environ; | |
4efc5df6 GS |
4530 | if (env != environ |
4531 | # ifdef USE_ITHREADS | |
4532 | && PL_curinterp == aTHX | |
4533 | # endif | |
4534 | ) | |
4535 | { | |
79072805 | 4536 | environ[0] = Nullch; |
4efc5df6 | 4537 | } |
9b4eeda5 MB |
4538 | if (env) { |
4539 | char** origenv = environ; | |
27da23d5 JH |
4540 | char *s; |
4541 | SV *sv; | |
764df951 | 4542 | for (; *env; env++) { |
9b4eeda5 | 4543 | if (!(s = strchr(*env,'=')) || s == *env) |
79072805 | 4544 | continue; |
7da0e383 | 4545 | #if defined(MSDOS) && !defined(DJGPP) |
61968511 | 4546 | *s = '\0'; |
137443ea | 4547 | (void)strupr(*env); |
61968511 | 4548 | *s = '='; |
137443ea | 4549 | #endif |
61968511 | 4550 | sv = newSVpv(s+1, 0); |
79072805 | 4551 | (void)hv_store(hv, *env, s - *env, sv, 0); |
61968511 GA |
4552 | if (env != environ) |
4553 | mg_set(sv); | |
9b4eeda5 MB |
4554 | if (origenv != environ) { |
4555 | /* realloc has shifted us */ | |
4556 | env = (env - origenv) + environ; | |
4557 | origenv = environ; | |
4558 | } | |
764df951 | 4559 | } |
9b4eeda5 | 4560 | } |
103a7189 | 4561 | #endif /* USE_ENVIRON_ARRAY */ |
2f42fcb0 | 4562 | #endif /* !PERL_MICRO */ |
79072805 | 4563 | } |
bbce6d69 | 4564 | TAINT_NOT; |
306196c3 MS |
4565 | if ((tmpgv = gv_fetchpv("$",TRUE, SVt_PV))) { |
4566 | SvREADONLY_off(GvSV(tmpgv)); | |
7766f137 | 4567 | sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid()); |
306196c3 MS |
4568 | SvREADONLY_on(GvSV(tmpgv)); |
4569 | } | |
4d76a344 RGS |
4570 | #ifdef THREADS_HAVE_PIDS |
4571 | PL_ppid = (IV)getppid(); | |
4572 | #endif | |
2710853f MJD |
4573 | |
4574 | /* touch @F array to prevent spurious warnings 20020415 MJD */ | |
4575 | if (PL_minus_a) { | |
4576 | (void) get_av("main::F", TRUE | GV_ADDMULTI); | |
4577 | } | |
4578 | /* touch @- and @+ arrays to prevent spurious warnings 20020415 MJD */ | |
4579 | (void) get_av("main::-", TRUE | GV_ADDMULTI); | |
4580 | (void) get_av("main::+", TRUE | GV_ADDMULTI); | |
33b78306 | 4581 | } |
34de22dd | 4582 | |
76e3520e | 4583 | STATIC void |
cea2e8a9 | 4584 | S_init_perllib(pTHX) |
34de22dd | 4585 | { |
85e6fe83 | 4586 | char *s; |
3280af22 | 4587 | if (!PL_tainting) { |
552a7a9b | 4588 | #ifndef VMS |
76e3520e | 4589 | s = PerlEnv_getenv("PERL5LIB"); |
85e6fe83 | 4590 | if (s) |
88fe16b2 | 4591 | incpush(s, TRUE, TRUE, TRUE, FALSE); |
85e6fe83 | 4592 | else |
88fe16b2 | 4593 | incpush(PerlEnv_getenv("PERLLIB"), FALSE, FALSE, TRUE, FALSE); |
552a7a9b | 4594 | #else /* VMS */ |
4595 | /* Treat PERL5?LIB as a possible search list logical name -- the | |
4596 | * "natural" VMS idiom for a Unix path string. We allow each | |
4597 | * element to be a set of |-separated directories for compatibility. | |
4598 | */ | |
4599 | char buf[256]; | |
4600 | int idx = 0; | |
4601 | if (my_trnlnm("PERL5LIB",buf,0)) | |
88fe16b2 | 4602 | do { incpush(buf,TRUE,TRUE,TRUE,FALSE); } while (my_trnlnm("PERL5LIB",buf,++idx)); |
552a7a9b | 4603 | else |
88fe16b2 | 4604 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE,FALSE,TRUE,FALSE); |
552a7a9b | 4605 | #endif /* VMS */ |
85e6fe83 | 4606 | } |
34de22dd | 4607 | |
c90c0ff4 | 4608 | /* Use the ~-expanded versions of APPLLIB (undocumented), |
65f19062 | 4609 | ARCHLIB PRIVLIB SITEARCH SITELIB VENDORARCH and VENDORLIB |
df5cef82 | 4610 | */ |
4633a7c4 | 4611 | #ifdef APPLLIB_EXP |
88fe16b2 | 4612 | incpush(APPLLIB_EXP, TRUE, TRUE, TRUE, TRUE); |
16d20bd9 | 4613 | #endif |
4633a7c4 | 4614 | |
fed7345c | 4615 | #ifdef ARCHLIB_EXP |
88fe16b2 | 4616 | incpush(ARCHLIB_EXP, FALSE, FALSE, TRUE, TRUE); |
a0d0e21e | 4617 | #endif |
bf4acbe4 GS |
4618 | #ifdef MACOS_TRADITIONAL |
4619 | { | |
c623ac67 | 4620 | Stat_t tmpstatbuf; |
bf4acbe4 GS |
4621 | SV * privdir = NEWSV(55, 0); |
4622 | char * macperl = PerlEnv_getenv("MACPERL"); | |
4623 | ||
4624 | if (!macperl) | |
4625 | macperl = ""; | |
4626 | ||
4627 | Perl_sv_setpvf(aTHX_ privdir, "%slib:", macperl); | |
4628 | if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode)) | |
88fe16b2 | 4629 | incpush(SvPVX(privdir), TRUE, FALSE, TRUE, FALSE); |
bf4acbe4 GS |
4630 | Perl_sv_setpvf(aTHX_ privdir, "%ssite_perl:", macperl); |
4631 | if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode)) | |
88fe16b2 | 4632 | incpush(SvPVX(privdir), TRUE, FALSE, TRUE, FALSE); |
ac27b0f5 | 4633 | |
bf4acbe4 GS |
4634 | SvREFCNT_dec(privdir); |
4635 | } | |
4636 | if (!PL_tainting) | |
88fe16b2 | 4637 | incpush(":", FALSE, FALSE, TRUE, FALSE); |
bf4acbe4 | 4638 | #else |
fed7345c | 4639 | #ifndef PRIVLIB_EXP |
65f19062 | 4640 | # define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" |
34de22dd | 4641 | #endif |
ac27b0f5 | 4642 | #if defined(WIN32) |
88fe16b2 | 4643 | incpush(PRIVLIB_EXP, TRUE, FALSE, TRUE, TRUE); |
00dc2f4f | 4644 | #else |
88fe16b2 | 4645 | incpush(PRIVLIB_EXP, FALSE, FALSE, TRUE, TRUE); |
00dc2f4f | 4646 | #endif |
4633a7c4 | 4647 | |
65f19062 | 4648 | #ifdef SITEARCH_EXP |
3b290362 GS |
4649 | /* sitearch is always relative to sitelib on Windows for |
4650 | * DLL-based path intuition to work correctly */ | |
4651 | # if !defined(WIN32) | |
88fe16b2 | 4652 | incpush(SITEARCH_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 GS |
4653 | # endif |
4654 | #endif | |
4655 | ||
4633a7c4 | 4656 | #ifdef SITELIB_EXP |
65f19062 | 4657 | # if defined(WIN32) |
574c798a | 4658 | /* this picks up sitearch as well */ |
88fe16b2 | 4659 | incpush(SITELIB_EXP, TRUE, FALSE, TRUE, TRUE); |
65f19062 | 4660 | # else |
88fe16b2 | 4661 | incpush(SITELIB_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 GS |
4662 | # endif |
4663 | #endif | |
189d1e8d | 4664 | |
65f19062 | 4665 | #ifdef SITELIB_STEM /* Search for version-specific dirs below here */ |
88fe16b2 | 4666 | incpush(SITELIB_STEM, FALSE, TRUE, TRUE, TRUE); |
81c6dfba | 4667 | #endif |
65f19062 GS |
4668 | |
4669 | #ifdef PERL_VENDORARCH_EXP | |
4ea817c6 | 4670 | /* vendorarch is always relative to vendorlib on Windows for |
3b290362 GS |
4671 | * DLL-based path intuition to work correctly */ |
4672 | # if !defined(WIN32) | |
88fe16b2 | 4673 | incpush(PERL_VENDORARCH_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 | 4674 | # endif |
4b03c463 | 4675 | #endif |
65f19062 GS |
4676 | |
4677 | #ifdef PERL_VENDORLIB_EXP | |
4678 | # if defined(WIN32) | |
88fe16b2 | 4679 | incpush(PERL_VENDORLIB_EXP, TRUE, FALSE, TRUE, TRUE); /* this picks up vendorarch as well */ |
65f19062 | 4680 | # else |
88fe16b2 | 4681 | incpush(PERL_VENDORLIB_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 | 4682 | # endif |
a3635516 | 4683 | #endif |
65f19062 GS |
4684 | |
4685 | #ifdef PERL_VENDORLIB_STEM /* Search for version-specific dirs below here */ | |
88fe16b2 | 4686 | incpush(PERL_VENDORLIB_STEM, FALSE, TRUE, TRUE, TRUE); |
00dc2f4f | 4687 | #endif |
65f19062 | 4688 | |
3b777bb4 | 4689 | #ifdef PERL_OTHERLIBDIRS |
88fe16b2 | 4690 | incpush(PERL_OTHERLIBDIRS, TRUE, TRUE, TRUE, TRUE); |
3b777bb4 GS |
4691 | #endif |
4692 | ||
3280af22 | 4693 | if (!PL_tainting) |
88fe16b2 | 4694 | incpush(".", FALSE, FALSE, TRUE, FALSE); |
bf4acbe4 | 4695 | #endif /* MACOS_TRADITIONAL */ |
774d564b | 4696 | } |
4697 | ||
27da23d5 | 4698 | #if defined(DOSISH) || defined(EPOC) || defined(SYMBIAN) |
774d564b | 4699 | # define PERLLIB_SEP ';' |
4700 | #else | |
4701 | # if defined(VMS) | |
4702 | # define PERLLIB_SEP '|' | |
4703 | # else | |
bf4acbe4 GS |
4704 | # if defined(MACOS_TRADITIONAL) |
4705 | # define PERLLIB_SEP ',' | |
4706 | # else | |
4707 | # define PERLLIB_SEP ':' | |
4708 | # endif | |
774d564b | 4709 | # endif |
4710 | #endif | |
4711 | #ifndef PERLLIB_MANGLE | |
4712 | # define PERLLIB_MANGLE(s,n) (s) | |
ac27b0f5 | 4713 | #endif |
774d564b | 4714 | |
ad17a1ae NC |
4715 | /* Push a directory onto @INC if it exists. |
4716 | Generate a new SV if we do this, to save needing to copy the SV we push | |
4717 | onto @INC */ | |
4718 | STATIC SV * | |
4719 | S_incpush_if_exists(pTHX_ SV *dir) | |
4720 | { | |
4721 | Stat_t tmpstatbuf; | |
848ef955 | 4722 | if (PerlLIO_stat(SvPVX_const(dir), &tmpstatbuf) >= 0 && |
ad17a1ae NC |
4723 | S_ISDIR(tmpstatbuf.st_mode)) { |
4724 | av_push(GvAVn(PL_incgv), dir); | |
4725 | dir = NEWSV(0,0); | |
4726 | } | |
4727 | return dir; | |
4728 | } | |
4729 | ||
76e3520e | 4730 | STATIC void |
dd374669 AL |
4731 | S_incpush(pTHX_ const char *dir, bool addsubdirs, bool addoldvers, bool usesep, |
4732 | bool canrelocate) | |
774d564b | 4733 | { |
4734 | SV *subdir = Nullsv; | |
dd374669 | 4735 | const char *p = dir; |
774d564b | 4736 | |
3b290362 | 4737 | if (!p || !*p) |
774d564b | 4738 | return; |
4739 | ||
9c8a64f0 | 4740 | if (addsubdirs || addoldvers) { |
ad17a1ae | 4741 | subdir = NEWSV(0,0); |
774d564b | 4742 | } |
4743 | ||
4744 | /* Break at all separators */ | |
4745 | while (p && *p) { | |
8c52afec | 4746 | SV *libdir = NEWSV(55,0); |
e1ec3a88 | 4747 | const char *s; |
774d564b | 4748 | |
4749 | /* skip any consecutive separators */ | |
574c798a SR |
4750 | if (usesep) { |
4751 | while ( *p == PERLLIB_SEP ) { | |
4752 | /* Uncomment the next line for PATH semantics */ | |
4753 | /* av_push(GvAVn(PL_incgv), newSVpvn(".", 1)); */ | |
4754 | p++; | |
4755 | } | |
774d564b | 4756 | } |
4757 | ||
574c798a | 4758 | if ( usesep && (s = strchr(p, PERLLIB_SEP)) != Nullch ) { |
774d564b | 4759 | sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)), |
4760 | (STRLEN)(s - p)); | |
4761 | p = s + 1; | |
4762 | } | |
4763 | else { | |
4764 | sv_setpv(libdir, PERLLIB_MANGLE(p, 0)); | |
4765 | p = Nullch; /* break out */ | |
4766 | } | |
bf4acbe4 | 4767 | #ifdef MACOS_TRADITIONAL |
e69a2255 JH |
4768 | if (!strchr(SvPVX(libdir), ':')) { |
4769 | char buf[256]; | |
4770 | ||
4771 | sv_setpv(libdir, MacPerl_CanonDir(SvPVX(libdir), buf, 0)); | |
4772 | } | |
bf4acbe4 GS |
4773 | if (SvPVX(libdir)[SvCUR(libdir)-1] != ':') |
4774 | sv_catpv(libdir, ":"); | |
4775 | #endif | |
774d564b | 4776 | |
dd374669 AL |
4777 | /* Do the if() outside the #ifdef to avoid warnings about an unused |
4778 | parameter. */ | |
4779 | if (canrelocate) { | |
88fe16b2 NC |
4780 | #ifdef PERL_RELOCATABLE_INC |
4781 | /* | |
4782 | * Relocatable include entries are marked with a leading .../ | |
4783 | * | |
4784 | * The algorithm is | |
4785 | * 0: Remove that leading ".../" | |
4786 | * 1: Remove trailing executable name (anything after the last '/') | |
4787 | * from the perl path to give a perl prefix | |
4788 | * Then | |
4789 | * While the @INC element starts "../" and the prefix ends with a real | |
4790 | * directory (ie not . or ..) chop that real directory off the prefix | |
4791 | * and the leading "../" from the @INC element. ie a logical "../" | |
4792 | * cleanup | |
4793 | * Finally concatenate the prefix and the remainder of the @INC element | |
4794 | * The intent is that /usr/local/bin/perl and .../../lib/perl5 | |
4795 | * generates /usr/local/lib/perl5 | |
4796 | */ | |
890ce7af | 4797 | const char *libpath = SvPVX(libdir); |
88fe16b2 NC |
4798 | STRLEN libpath_len = SvCUR(libdir); |
4799 | if (libpath_len >= 4 && memEQ (libpath, ".../", 4)) { | |
4800 | /* Game on! */ | |
890ce7af | 4801 | SV * const caret_X = get_sv("\030", 0); |
88fe16b2 NC |
4802 | /* Going to use the SV just as a scratch buffer holding a C |
4803 | string: */ | |
4804 | SV *prefix_sv; | |
4805 | char *prefix; | |
4806 | char *lastslash; | |
4807 | ||
4808 | /* $^X is *the* source of taint if tainting is on, hence | |
4809 | SvPOK() won't be true. */ | |
4810 | assert(caret_X); | |
4811 | assert(SvPOKp(caret_X)); | |
4812 | prefix_sv = newSVpvn(SvPVX(caret_X), SvCUR(caret_X)); | |
4813 | /* Firstly take off the leading .../ | |
4814 | If all else fail we'll do the paths relative to the current | |
4815 | directory. */ | |
4816 | sv_chop(libdir, libpath + 4); | |
4817 | /* Don't use SvPV as we're intentionally bypassing taining, | |
4818 | mortal copies that the mg_get of tainting creates, and | |
4819 | corruption that seems to come via the save stack. | |
4820 | I guess that the save stack isn't correctly set up yet. */ | |
4821 | libpath = SvPVX(libdir); | |
4822 | libpath_len = SvCUR(libdir); | |
4823 | ||
4824 | /* This would work more efficiently with memrchr, but as it's | |
4825 | only a GNU extension we'd need to probe for it and | |
4826 | implement our own. Not hard, but maybe not worth it? */ | |
4827 | ||
4828 | prefix = SvPVX(prefix_sv); | |
4829 | lastslash = strrchr(prefix, '/'); | |
4830 | ||
4831 | /* First time in with the *lastslash = '\0' we just wipe off | |
4832 | the trailing /perl from (say) /usr/foo/bin/perl | |
4833 | */ | |
4834 | if (lastslash) { | |
4835 | SV *tempsv; | |
4836 | while ((*lastslash = '\0'), /* Do that, come what may. */ | |
4837 | (libpath_len >= 3 && memEQ(libpath, "../", 3) | |
4838 | && (lastslash = strrchr(prefix, '/')))) { | |
4839 | if (lastslash[1] == '\0' | |
4840 | || (lastslash[1] == '.' | |
4841 | && (lastslash[2] == '/' /* ends "/." */ | |
4842 | || (lastslash[2] == '/' | |
4843 | && lastslash[3] == '/' /* or "/.." */ | |
4844 | )))) { | |
4845 | /* Prefix ends "/" or "/." or "/..", any of which | |
4846 | are fishy, so don't do any more logical cleanup. | |
4847 | */ | |
4848 | break; | |
4849 | } | |
4850 | /* Remove leading "../" from path */ | |
4851 | libpath += 3; | |
4852 | libpath_len -= 3; | |
4853 | /* Next iteration round the loop removes the last | |
4854 | directory name from prefix by writing a '\0' in | |
4855 | the while clause. */ | |
4856 | } | |
4857 | /* prefix has been terminated with a '\0' to the correct | |
4858 | length. libpath points somewhere into the libdir SV. | |
4859 | We need to join the 2 with '/' and drop the result into | |
4860 | libdir. */ | |
4861 | tempsv = Perl_newSVpvf(aTHX_ "%s/%s", prefix, libpath); | |
4862 | SvREFCNT_dec(libdir); | |
4863 | /* And this is the new libdir. */ | |
4864 | libdir = tempsv; | |
4865 | if (PL_tainting && | |
4866 | (PL_uid != PL_euid || PL_gid != PL_egid)) { | |
4867 | /* Need to taint reloccated paths if running set ID */ | |
4868 | SvTAINTED_on(libdir); | |
4869 | } | |
4870 | } | |
4871 | SvREFCNT_dec(prefix_sv); | |
4872 | } | |
88fe16b2 | 4873 | #endif |
dd374669 | 4874 | } |
774d564b | 4875 | /* |
4876 | * BEFORE pushing libdir onto @INC we may first push version- and | |
4877 | * archname-specific sub-directories. | |
4878 | */ | |
9c8a64f0 | 4879 | if (addsubdirs || addoldvers) { |
29d82f8d | 4880 | #ifdef PERL_INC_VERSION_LIST |
8353b874 GS |
4881 | /* Configure terminates PERL_INC_VERSION_LIST with a NULL */ |
4882 | const char *incverlist[] = { PERL_INC_VERSION_LIST }; | |
29d82f8d GS |
4883 | const char **incver; |
4884 | #endif | |
aa689395 | 4885 | #ifdef VMS |
4886 | char *unix; | |
4887 | STRLEN len; | |
774d564b | 4888 | |
2d8e6c8d | 4889 | if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) { |
aa689395 | 4890 | len = strlen(unix); |
4891 | while (unix[len-1] == '/') len--; /* Cosmetic */ | |
4892 | sv_usepvn(libdir,unix,len); | |
4893 | } | |
4894 | else | |
bf49b057 | 4895 | PerlIO_printf(Perl_error_log, |
aa689395 | 4896 | "Failed to unixify @INC element \"%s\"\n", |
2d8e6c8d | 4897 | SvPV(libdir,len)); |
aa689395 | 4898 | #endif |
9c8a64f0 | 4899 | if (addsubdirs) { |
bf4acbe4 GS |
4900 | #ifdef MACOS_TRADITIONAL |
4901 | #define PERL_AV_SUFFIX_FMT "" | |
084592ab CN |
4902 | #define PERL_ARCH_FMT "%s:" |
4903 | #define PERL_ARCH_FMT_PATH PERL_FS_VER_FMT PERL_AV_SUFFIX_FMT | |
bf4acbe4 GS |
4904 | #else |
4905 | #define PERL_AV_SUFFIX_FMT "/" | |
4906 | #define PERL_ARCH_FMT "/%s" | |
084592ab | 4907 | #define PERL_ARCH_FMT_PATH PERL_AV_SUFFIX_FMT PERL_FS_VER_FMT |
bf4acbe4 | 4908 | #endif |
9c8a64f0 | 4909 | /* .../version/archname if -d .../version/archname */ |
084592ab | 4910 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH PERL_ARCH_FMT, |
9c8a64f0 GS |
4911 | libdir, |
4912 | (int)PERL_REVISION, (int)PERL_VERSION, | |
4913 | (int)PERL_SUBVERSION, ARCHNAME); | |
ad17a1ae | 4914 | subdir = S_incpush_if_exists(aTHX_ subdir); |
4b03c463 | 4915 | |
9c8a64f0 | 4916 | /* .../version if -d .../version */ |
084592ab | 4917 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH, libdir, |
9c8a64f0 GS |
4918 | (int)PERL_REVISION, (int)PERL_VERSION, |
4919 | (int)PERL_SUBVERSION); | |
ad17a1ae | 4920 | subdir = S_incpush_if_exists(aTHX_ subdir); |
9c8a64f0 GS |
4921 | |
4922 | /* .../archname if -d .../archname */ | |
bf4acbe4 | 4923 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, ARCHNAME); |
ad17a1ae NC |
4924 | subdir = S_incpush_if_exists(aTHX_ subdir); |
4925 | ||
29d82f8d | 4926 | } |
9c8a64f0 | 4927 | |
9c8a64f0 | 4928 | #ifdef PERL_INC_VERSION_LIST |
ccc2aad8 | 4929 | if (addoldvers) { |
9c8a64f0 GS |
4930 | for (incver = incverlist; *incver; incver++) { |
4931 | /* .../xxx if -d .../xxx */ | |
bf4acbe4 | 4932 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, *incver); |
ad17a1ae | 4933 | subdir = S_incpush_if_exists(aTHX_ subdir); |
9c8a64f0 GS |
4934 | } |
4935 | } | |
29d82f8d | 4936 | #endif |
774d564b | 4937 | } |
4938 | ||
4939 | /* finally push this lib directory on the end of @INC */ | |
3280af22 | 4940 | av_push(GvAVn(PL_incgv), libdir); |
774d564b | 4941 | } |
ad17a1ae | 4942 | if (subdir) { |
ef97f5b3 | 4943 | assert (SvREFCNT(subdir) == 1); |
ad17a1ae NC |
4944 | SvREFCNT_dec(subdir); |
4945 | } | |
34de22dd | 4946 | } |
93a17b20 | 4947 | |
4d1ff10f | 4948 | #ifdef USE_5005THREADS |
76e3520e | 4949 | STATIC struct perl_thread * |
cea2e8a9 | 4950 | S_init_main_thread(pTHX) |
199100c8 | 4951 | { |
c5be433b | 4952 | #if !defined(PERL_IMPLICIT_CONTEXT) |
52e1cb5e | 4953 | struct perl_thread *thr; |
cea2e8a9 | 4954 | #endif |
199100c8 MB |
4955 | XPV *xpv; |
4956 | ||
a02a5408 | 4957 | Newxz(thr, 1, struct perl_thread); |
533c011a | 4958 | PL_curcop = &PL_compiling; |
c5be433b | 4959 | thr->interp = PERL_GET_INTERP; |
199100c8 | 4960 | thr->cvcache = newHV(); |
54b9620d | 4961 | thr->threadsv = newAV(); |
940cb80d | 4962 | /* thr->threadsvp is set when find_threadsv is called */ |
199100c8 MB |
4963 | thr->specific = newAV(); |
4964 | thr->flags = THRf_R_JOINABLE; | |
4965 | MUTEX_INIT(&thr->mutex); | |
4966 | /* Handcraft thrsv similarly to mess_sv */ | |
a02a5408 JC |
4967 | Newx(PL_thrsv, 1, SV); |
4968 | Newxz(xpv, 1, XPV); | |
533c011a NIS |
4969 | SvFLAGS(PL_thrsv) = SVt_PV; |
4970 | SvANY(PL_thrsv) = (void*)xpv; | |
4971 | SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */ | |
f880fe2f | 4972 | SvPV_set(PL_thrsvr, (char*)thr); |
533c011a NIS |
4973 | SvCUR_set(PL_thrsv, sizeof(thr)); |
4974 | SvLEN_set(PL_thrsv, sizeof(thr)); | |
4975 | *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */ | |
4976 | thr->oursv = PL_thrsv; | |
4977 | PL_chopset = " \n-"; | |
3967c732 | 4978 | PL_dumpindent = 4; |
533c011a NIS |
4979 | |
4980 | MUTEX_LOCK(&PL_threads_mutex); | |
4981 | PL_nthreads++; | |
199100c8 MB |
4982 | thr->tid = 0; |
4983 | thr->next = thr; | |
4984 | thr->prev = thr; | |
8dcd6f7b | 4985 | thr->thr_done = 0; |
533c011a | 4986 | MUTEX_UNLOCK(&PL_threads_mutex); |
199100c8 | 4987 | |
4b026b9e | 4988 | #ifdef HAVE_THREAD_INTERN |
4f63d024 | 4989 | Perl_init_thread_intern(thr); |
235db74f GS |
4990 | #endif |
4991 | ||
4992 | #ifdef SET_THREAD_SELF | |
4993 | SET_THREAD_SELF(thr); | |
199100c8 MB |
4994 | #else |
4995 | thr->self = pthread_self(); | |
235db74f | 4996 | #endif /* SET_THREAD_SELF */ |
06d86050 | 4997 | PERL_SET_THX(thr); |
199100c8 MB |
4998 | |
4999 | /* | |
411caa50 JH |
5000 | * These must come after the thread self setting |
5001 | * because sv_setpvn does SvTAINT and the taint | |
5002 | * fields thread selfness being set. | |
199100c8 | 5003 | */ |
533c011a NIS |
5004 | PL_toptarget = NEWSV(0,0); |
5005 | sv_upgrade(PL_toptarget, SVt_PVFM); | |
5006 | sv_setpvn(PL_toptarget, "", 0); | |
5007 | PL_bodytarget = NEWSV(0,0); | |
5008 | sv_upgrade(PL_bodytarget, SVt_PVFM); | |
5009 | sv_setpvn(PL_bodytarget, "", 0); | |
5010 | PL_formtarget = PL_bodytarget; | |
79cb57f6 | 5011 | thr->errsv = newSVpvn("", 0); |
78857c3c | 5012 | (void) find_threadsv("@"); /* Ensure $@ is initialised early */ |
5c0ca799 | 5013 | |
533c011a | 5014 | PL_maxscream = -1; |
a2efc822 | 5015 | PL_peepp = MEMBER_TO_FPTR(Perl_peep); |
0b94c7bb GS |
5016 | PL_regcompp = MEMBER_TO_FPTR(Perl_pregcomp); |
5017 | PL_regexecp = MEMBER_TO_FPTR(Perl_regexec_flags); | |
5018 | PL_regint_start = MEMBER_TO_FPTR(Perl_re_intuit_start); | |
5019 | PL_regint_string = MEMBER_TO_FPTR(Perl_re_intuit_string); | |
5020 | PL_regfree = MEMBER_TO_FPTR(Perl_pregfree); | |
533c011a NIS |
5021 | PL_regindent = 0; |
5022 | PL_reginterp_cnt = 0; | |
5c0ca799 | 5023 | |
199100c8 MB |
5024 | return thr; |
5025 | } | |
4d1ff10f | 5026 | #endif /* USE_5005THREADS */ |
199100c8 | 5027 | |
93a17b20 | 5028 | void |
864dbfa3 | 5029 | Perl_call_list(pTHX_ I32 oldscope, AV *paramList) |
93a17b20 | 5030 | { |
27da23d5 | 5031 | dVAR; |
971a9dd3 | 5032 | SV *atsv; |
dd374669 | 5033 | const line_t oldline = CopLINE(PL_curcop); |
312caa8e | 5034 | CV *cv; |
22921e25 | 5035 | STRLEN len; |
6224f72b | 5036 | int ret; |
db36c5a1 | 5037 | dJMPENV; |
93a17b20 | 5038 | |
e1ec3a88 | 5039 | while (av_len(paramList) >= 0) { |
312caa8e | 5040 | cv = (CV*)av_shift(paramList); |
ece599bd RGS |
5041 | if (PL_savebegin) { |
5042 | if (paramList == PL_beginav) { | |
059a8bb7 | 5043 | /* save PL_beginav for compiler */ |
ece599bd RGS |
5044 | if (! PL_beginav_save) |
5045 | PL_beginav_save = newAV(); | |
5046 | av_push(PL_beginav_save, (SV*)cv); | |
5047 | } | |
5048 | else if (paramList == PL_checkav) { | |
5049 | /* save PL_checkav for compiler */ | |
5050 | if (! PL_checkav_save) | |
5051 | PL_checkav_save = newAV(); | |
5052 | av_push(PL_checkav_save, (SV*)cv); | |
5053 | } | |
059a8bb7 JH |
5054 | } else { |
5055 | SAVEFREESV(cv); | |
5056 | } | |
14dd3ad8 | 5057 | JMPENV_PUSH(ret); |
6224f72b | 5058 | switch (ret) { |
312caa8e | 5059 | case 0: |
14dd3ad8 | 5060 | call_list_body(cv); |
971a9dd3 | 5061 | atsv = ERRSV; |
10516c54 | 5062 | (void)SvPV_const(atsv, len); |
312caa8e CS |
5063 | if (len) { |
5064 | PL_curcop = &PL_compiling; | |
57843af0 | 5065 | CopLINE_set(PL_curcop, oldline); |
312caa8e CS |
5066 | if (paramList == PL_beginav) |
5067 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); | |
5068 | else | |
4f25aa18 GS |
5069 | Perl_sv_catpvf(aTHX_ atsv, |
5070 | "%s failed--call queue aborted", | |
7d30b5c4 | 5071 | paramList == PL_checkav ? "CHECK" |
4f25aa18 GS |
5072 | : paramList == PL_initav ? "INIT" |
5073 | : "END"); | |
312caa8e CS |
5074 | while (PL_scopestack_ix > oldscope) |
5075 | LEAVE; | |
14dd3ad8 | 5076 | JMPENV_POP; |
35c1215d | 5077 | Perl_croak(aTHX_ "%"SVf"", atsv); |
a0d0e21e | 5078 | } |
85e6fe83 | 5079 | break; |
6224f72b | 5080 | case 1: |
f86702cc | 5081 | STATUS_ALL_FAILURE; |
85e6fe83 | 5082 | /* FALL THROUGH */ |
6224f72b | 5083 | case 2: |
85e6fe83 | 5084 | /* my_exit() was called */ |
3280af22 | 5085 | while (PL_scopestack_ix > oldscope) |
2ae324a7 | 5086 | LEAVE; |
84902520 | 5087 | FREETMPS; |
3280af22 | 5088 | PL_curstash = PL_defstash; |
3280af22 | 5089 | PL_curcop = &PL_compiling; |
57843af0 | 5090 | CopLINE_set(PL_curcop, oldline); |
14dd3ad8 | 5091 | JMPENV_POP; |
cc3604b1 | 5092 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) { |
3280af22 | 5093 | if (paramList == PL_beginav) |
cea2e8a9 | 5094 | Perl_croak(aTHX_ "BEGIN failed--compilation aborted"); |
85e6fe83 | 5095 | else |
4f25aa18 | 5096 | Perl_croak(aTHX_ "%s failed--call queue aborted", |
7d30b5c4 | 5097 | paramList == PL_checkav ? "CHECK" |
4f25aa18 GS |
5098 | : paramList == PL_initav ? "INIT" |
5099 | : "END"); | |
85e6fe83 | 5100 | } |
f86702cc | 5101 | my_exit_jump(); |
85e6fe83 | 5102 | /* NOTREACHED */ |
6224f72b | 5103 | case 3: |
312caa8e CS |
5104 | if (PL_restartop) { |
5105 | PL_curcop = &PL_compiling; | |
57843af0 | 5106 | CopLINE_set(PL_curcop, oldline); |
312caa8e | 5107 | JMPENV_JUMP(3); |
85e6fe83 | 5108 | } |
bf49b057 | 5109 | PerlIO_printf(Perl_error_log, "panic: restartop\n"); |
312caa8e CS |
5110 | FREETMPS; |
5111 | break; | |
8990e307 | 5112 | } |
14dd3ad8 | 5113 | JMPENV_POP; |
93a17b20 | 5114 | } |
93a17b20 | 5115 | } |
93a17b20 | 5116 | |
14dd3ad8 GS |
5117 | STATIC void * |
5118 | S_call_list_body(pTHX_ CV *cv) | |
5119 | { | |
312caa8e | 5120 | PUSHMARK(PL_stack_sp); |
864dbfa3 | 5121 | call_sv((SV*)cv, G_EVAL|G_DISCARD); |
312caa8e CS |
5122 | return NULL; |
5123 | } | |
5124 | ||
f86702cc | 5125 | void |
864dbfa3 | 5126 | Perl_my_exit(pTHX_ U32 status) |
f86702cc | 5127 | { |
8b73bbec | 5128 | DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n", |
a863c7d1 | 5129 | thr, (unsigned long) status)); |
f86702cc | 5130 | switch (status) { |
5131 | case 0: | |
5132 | STATUS_ALL_SUCCESS; | |
5133 | break; | |
5134 | case 1: | |
5135 | STATUS_ALL_FAILURE; | |
5136 | break; | |
5137 | default: | |
5138 | STATUS_NATIVE_SET(status); | |
5139 | break; | |
5140 | } | |
5141 | my_exit_jump(); | |
5142 | } | |
5143 | ||
5144 | void | |
864dbfa3 | 5145 | Perl_my_failure_exit(pTHX) |
f86702cc | 5146 | { |
5147 | #ifdef VMS | |
5148 | if (vaxc$errno & 1) { | |
4fdae800 | 5149 | if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */ |
5150 | STATUS_NATIVE_SET(44); | |
f86702cc | 5151 | } |
5152 | else { | |
69232efa | 5153 | if (!vaxc$errno) /* unlikely */ |
4fdae800 | 5154 | STATUS_NATIVE_SET(44); |
f86702cc | 5155 | else |
4fdae800 | 5156 | STATUS_NATIVE_SET(vaxc$errno); |
f86702cc | 5157 | } |
5158 | #else | |
9b599b2a | 5159 | int exitstatus; |
f86702cc | 5160 | if (errno & 255) |
e5218da5 | 5161 | STATUS_UNIX_SET(errno); |
9b599b2a | 5162 | else { |
e5218da5 | 5163 | exitstatus = STATUS_UNIX >> 8; |
9b599b2a | 5164 | if (exitstatus & 255) |
e5218da5 | 5165 | STATUS_UNIX_SET(exitstatus); |
9b599b2a | 5166 | else |
e5218da5 | 5167 | STATUS_UNIX_SET(255); |
9b599b2a | 5168 | } |
f86702cc | 5169 | #endif |
5170 | my_exit_jump(); | |
93a17b20 LW |
5171 | } |
5172 | ||
76e3520e | 5173 | STATIC void |
cea2e8a9 | 5174 | S_my_exit_jump(pTHX) |
f86702cc | 5175 | { |
27da23d5 | 5176 | dVAR; |
c09156bb | 5177 | register PERL_CONTEXT *cx; |
f86702cc | 5178 | I32 gimme; |
5179 | SV **newsp; | |
5180 | ||
3280af22 NIS |
5181 | if (PL_e_script) { |
5182 | SvREFCNT_dec(PL_e_script); | |
5183 | PL_e_script = Nullsv; | |
f86702cc | 5184 | } |
5185 | ||
3280af22 | 5186 | POPSTACK_TO(PL_mainstack); |
f86702cc | 5187 | if (cxstack_ix >= 0) { |
5188 | if (cxstack_ix > 0) | |
5189 | dounwind(0); | |
3280af22 | 5190 | POPBLOCK(cx,PL_curpm); |
f86702cc | 5191 | LEAVE; |
5192 | } | |
ff0cee69 | 5193 | |
6224f72b | 5194 | JMPENV_JUMP(2); |
9d4ba2ae AL |
5195 | PERL_UNUSED_VAR(gimme); |
5196 | PERL_UNUSED_VAR(newsp); | |
f86702cc | 5197 | } |
873ef191 | 5198 | |
0cb96387 | 5199 | static I32 |
acfe0abc | 5200 | read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen) |
873ef191 | 5201 | { |
9d4ba2ae AL |
5202 | const char * const p = SvPVX_const(PL_e_script); |
5203 | const char *nl = strchr(p, '\n'); | |
5204 | ||
5205 | PERL_UNUSED_ARG(idx); | |
5206 | PERL_UNUSED_ARG(maxlen); | |
dd374669 | 5207 | |
3280af22 | 5208 | nl = (nl) ? nl+1 : SvEND(PL_e_script); |
7dfe3f66 | 5209 | if (nl-p == 0) { |
0cb96387 | 5210 | filter_del(read_e_script); |
873ef191 | 5211 | return 0; |
7dfe3f66 | 5212 | } |
873ef191 | 5213 | sv_catpvn(buf_sv, p, nl-p); |
3280af22 | 5214 | sv_chop(PL_e_script, nl); |
873ef191 GS |
5215 | return 1; |
5216 | } | |
66610fdd RGS |
5217 | |
5218 | /* | |
5219 | * Local variables: | |
5220 | * c-indentation-style: bsd | |
5221 | * c-basic-offset: 4 | |
5222 | * indent-tabs-mode: t | |
5223 | * End: | |
5224 | * | |
37442d52 RGS |
5225 | * ex: set ts=8 sts=4 sw=4 noet: |
5226 | */ |