Commit | Line | Data |
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4b88f280 | 1 | #line 2 "perl.c" |
a0d0e21e LW |
2 | /* perl.c |
3 | * | |
737f4459 | 4 | * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 |
32709fdf A |
5 | * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 by Larry Wall |
6 | * and others | |
a687059c | 7 | * |
352d5a3a LW |
8 | * You may distribute under the terms of either the GNU General Public |
9 | * License or the Artistic License, as specified in the README file. | |
a687059c | 10 | * |
8d063cd8 LW |
11 | */ |
12 | ||
a0d0e21e | 13 | /* |
4ac71550 TC |
14 | * A ship then new they built for him |
15 | * of mithril and of elven-glass | |
16 | * --from Bilbo's song of EƤrendil | |
17 | * | |
18 | * [p.236 of _The Lord of the Rings_, II/i: "Many Meetings"] | |
a0d0e21e | 19 | */ |
45d8adaa | 20 | |
166f8a29 DM |
21 | /* This file contains the top-level functions that are used to create, use |
22 | * and destroy a perl interpreter, plus the functions used by XS code to | |
23 | * call back into perl. Note that it does not contain the actual main() | |
ddfa107c | 24 | * function of the interpreter; that can be found in perlmain.c |
166f8a29 DM |
25 | */ |
26 | ||
378cc40b | 27 | #include "EXTERN.h" |
864dbfa3 | 28 | #define PERL_IN_PERL_C |
378cc40b | 29 | #include "perl.h" |
e3321bb0 | 30 | #include "patchlevel.h" /* for local_patches */ |
4a5df386 | 31 | #include "XSUB.h" |
378cc40b | 32 | |
011f1a1a JH |
33 | #ifdef NETWARE |
34 | #include "nwutil.h" | |
011f1a1a JH |
35 | #endif |
36 | ||
df5cef82 | 37 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e LW |
38 | #ifdef I_UNISTD |
39 | #include <unistd.h> | |
40 | #endif | |
a0d0e21e | 41 | |
2aa47728 NC |
42 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
43 | # ifdef I_SYS_WAIT | |
44 | # include <sys/wait.h> | |
45 | # endif | |
bf357333 NC |
46 | # ifdef I_SYSUIO |
47 | # include <sys/uio.h> | |
48 | # endif | |
49 | ||
50 | union control_un { | |
51 | struct cmsghdr cm; | |
52 | char control[CMSG_SPACE(sizeof(int))]; | |
53 | }; | |
54 | ||
2aa47728 NC |
55 | #endif |
56 | ||
5311654c JH |
57 | #ifdef __BEOS__ |
58 | # define HZ 1000000 | |
59 | #endif | |
60 | ||
61 | #ifndef HZ | |
62 | # ifdef CLK_TCK | |
63 | # define HZ CLK_TCK | |
64 | # else | |
65 | # define HZ 60 | |
66 | # endif | |
67 | #endif | |
68 | ||
7114a2d2 | 69 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) && !defined(PERL_MICRO) |
20ce7b12 | 70 | char *getenv (char *); /* Usually in <stdlib.h> */ |
54310121 | 71 | #endif |
72 | ||
acfe0abc | 73 | static I32 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen); |
0cb96387 | 74 | |
cc69b689 | 75 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
ec2019ad | 76 | /* Drop everything. Heck, don't even try to call it */ |
cc69b689 NC |
77 | # define validate_suid(validarg, scriptname, fdscript, suidscript, linestr_sv, rsfp) NOOP |
78 | #else | |
ec2019ad | 79 | /* Drop almost everything */ |
cc69b689 | 80 | # define validate_suid(validarg, scriptname, fdscript, suidscript, linestr_sv, rsfp) S_validate_suid(aTHX_ rsfp) |
a687059c | 81 | #endif |
8d063cd8 | 82 | |
d6f07c05 AL |
83 | #define CALL_BODY_SUB(myop) \ |
84 | if (PL_op == (myop)) \ | |
139d0ce6 | 85 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); \ |
d6f07c05 AL |
86 | if (PL_op) \ |
87 | CALLRUNOPS(aTHX); | |
88 | ||
89 | #define CALL_LIST_BODY(cv) \ | |
90 | PUSHMARK(PL_stack_sp); \ | |
ad64d0ec | 91 | call_sv(MUTABLE_SV((cv)), G_EVAL|G_DISCARD); |
d6f07c05 | 92 | |
e6827a76 | 93 | static void |
daa7d858 | 94 | S_init_tls_and_interp(PerlInterpreter *my_perl) |
e6827a76 | 95 | { |
27da23d5 | 96 | dVAR; |
e6827a76 NC |
97 | if (!PL_curinterp) { |
98 | PERL_SET_INTERP(my_perl); | |
3db8f154 | 99 | #if defined(USE_ITHREADS) |
e6827a76 NC |
100 | INIT_THREADS; |
101 | ALLOC_THREAD_KEY; | |
102 | PERL_SET_THX(my_perl); | |
103 | OP_REFCNT_INIT; | |
71ad1b0c | 104 | HINTS_REFCNT_INIT; |
e6827a76 | 105 | MUTEX_INIT(&PL_dollarzero_mutex); |
016af4f1 DM |
106 | MUTEX_INIT(&PL_my_ctx_mutex); |
107 | # endif | |
e6827a76 | 108 | } |
c0bce9aa NC |
109 | #if defined(USE_ITHREADS) |
110 | else | |
111 | #else | |
112 | /* This always happens for non-ithreads */ | |
113 | #endif | |
114 | { | |
e6827a76 NC |
115 | PERL_SET_THX(my_perl); |
116 | } | |
117 | } | |
06d86050 | 118 | |
cbec8ebe DM |
119 | |
120 | /* these implement the PERL_SYS_INIT, PERL_SYS_INIT3, PERL_SYS_TERM macros */ | |
121 | ||
122 | void | |
123 | Perl_sys_init(int* argc, char*** argv) | |
124 | { | |
4fc0badb | 125 | dVAR; |
7918f24d NC |
126 | |
127 | PERL_ARGS_ASSERT_SYS_INIT; | |
128 | ||
cbec8ebe DM |
129 | PERL_UNUSED_ARG(argc); /* may not be used depending on _BODY macro */ |
130 | PERL_UNUSED_ARG(argv); | |
131 | PERL_SYS_INIT_BODY(argc, argv); | |
132 | } | |
133 | ||
134 | void | |
135 | Perl_sys_init3(int* argc, char*** argv, char*** env) | |
136 | { | |
4fc0badb | 137 | dVAR; |
7918f24d NC |
138 | |
139 | PERL_ARGS_ASSERT_SYS_INIT3; | |
140 | ||
cbec8ebe DM |
141 | PERL_UNUSED_ARG(argc); /* may not be used depending on _BODY macro */ |
142 | PERL_UNUSED_ARG(argv); | |
143 | PERL_UNUSED_ARG(env); | |
144 | PERL_SYS_INIT3_BODY(argc, argv, env); | |
145 | } | |
146 | ||
147 | void | |
d0820ef1 | 148 | Perl_sys_term() |
cbec8ebe | 149 | { |
4fc0badb | 150 | dVAR; |
bf81751b DM |
151 | if (!PL_veto_cleanup) { |
152 | PERL_SYS_TERM_BODY(); | |
153 | } | |
cbec8ebe DM |
154 | } |
155 | ||
156 | ||
32e30700 GS |
157 | #ifdef PERL_IMPLICIT_SYS |
158 | PerlInterpreter * | |
7766f137 GS |
159 | perl_alloc_using(struct IPerlMem* ipM, struct IPerlMem* ipMS, |
160 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
32e30700 GS |
161 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, |
162 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
163 | struct IPerlProc* ipP) | |
164 | { | |
165 | PerlInterpreter *my_perl; | |
7918f24d NC |
166 | |
167 | PERL_ARGS_ASSERT_PERL_ALLOC_USING; | |
168 | ||
9f653bb5 | 169 | /* Newx() needs interpreter, so call malloc() instead */ |
32e30700 | 170 | my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); |
e6827a76 | 171 | S_init_tls_and_interp(my_perl); |
32e30700 GS |
172 | Zero(my_perl, 1, PerlInterpreter); |
173 | PL_Mem = ipM; | |
7766f137 GS |
174 | PL_MemShared = ipMS; |
175 | PL_MemParse = ipMP; | |
32e30700 GS |
176 | PL_Env = ipE; |
177 | PL_StdIO = ipStd; | |
178 | PL_LIO = ipLIO; | |
179 | PL_Dir = ipD; | |
180 | PL_Sock = ipS; | |
181 | PL_Proc = ipP; | |
7cb608b5 | 182 | INIT_TRACK_MEMPOOL(PL_memory_debug_header, my_perl); |
7766f137 | 183 | |
32e30700 GS |
184 | return my_perl; |
185 | } | |
186 | #else | |
954c1994 GS |
187 | |
188 | /* | |
ccfc67b7 JH |
189 | =head1 Embedding Functions |
190 | ||
954c1994 GS |
191 | =for apidoc perl_alloc |
192 | ||
193 | Allocates a new Perl interpreter. See L<perlembed>. | |
194 | ||
195 | =cut | |
196 | */ | |
197 | ||
93a17b20 | 198 | PerlInterpreter * |
cea2e8a9 | 199 | perl_alloc(void) |
79072805 | 200 | { |
cea2e8a9 | 201 | PerlInterpreter *my_perl; |
79072805 | 202 | |
9f653bb5 | 203 | /* Newx() needs interpreter, so call malloc() instead */ |
e8ee3774 | 204 | my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); |
ba869deb | 205 | |
e6827a76 | 206 | S_init_tls_and_interp(my_perl); |
7cb608b5 | 207 | #ifndef PERL_TRACK_MEMPOOL |
07409e01 | 208 | return (PerlInterpreter *) ZeroD(my_perl, 1, PerlInterpreter); |
7cb608b5 NC |
209 | #else |
210 | Zero(my_perl, 1, PerlInterpreter); | |
211 | INIT_TRACK_MEMPOOL(PL_memory_debug_header, my_perl); | |
212 | return my_perl; | |
213 | #endif | |
79072805 | 214 | } |
32e30700 | 215 | #endif /* PERL_IMPLICIT_SYS */ |
79072805 | 216 | |
954c1994 GS |
217 | /* |
218 | =for apidoc perl_construct | |
219 | ||
220 | Initializes a new Perl interpreter. See L<perlembed>. | |
221 | ||
222 | =cut | |
223 | */ | |
224 | ||
79072805 | 225 | void |
0cb96387 | 226 | perl_construct(pTHXx) |
79072805 | 227 | { |
27da23d5 | 228 | dVAR; |
7918f24d NC |
229 | |
230 | PERL_ARGS_ASSERT_PERL_CONSTRUCT; | |
231 | ||
8990e307 | 232 | #ifdef MULTIPLICITY |
54aff467 | 233 | init_interp(); |
ac27b0f5 | 234 | PL_perl_destruct_level = 1; |
54aff467 | 235 | #else |
7918f24d | 236 | PERL_UNUSED_ARG(my_perl); |
54aff467 GS |
237 | if (PL_perl_destruct_level > 0) |
238 | init_interp(); | |
239 | #endif | |
34caed6d DM |
240 | PL_curcop = &PL_compiling; /* needed by ckWARN, right away */ |
241 | ||
34caed6d DM |
242 | /* set read-only and try to insure than we wont see REFCNT==0 |
243 | very often */ | |
244 | ||
245 | SvREADONLY_on(&PL_sv_undef); | |
246 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
247 | ||
248 | sv_setpv(&PL_sv_no,PL_No); | |
249 | /* value lookup in void context - happens to have the side effect | |
a43d94f2 NC |
250 | of caching the numeric forms. However, as &PL_sv_no doesn't contain |
251 | a string that is a valid numer, we have to turn the public flags by | |
252 | hand: */ | |
34caed6d | 253 | SvNV(&PL_sv_no); |
c1939273 | 254 | SvIV(&PL_sv_no); |
a43d94f2 NC |
255 | SvIOK_on(&PL_sv_no); |
256 | SvNOK_on(&PL_sv_no); | |
34caed6d DM |
257 | SvREADONLY_on(&PL_sv_no); |
258 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; | |
259 | ||
260 | sv_setpv(&PL_sv_yes,PL_Yes); | |
34caed6d | 261 | SvNV(&PL_sv_yes); |
c1939273 | 262 | SvIV(&PL_sv_yes); |
34caed6d DM |
263 | SvREADONLY_on(&PL_sv_yes); |
264 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; | |
265 | ||
266 | SvREADONLY_on(&PL_sv_placeholder); | |
267 | SvREFCNT(&PL_sv_placeholder) = (~(U32)0)/2; | |
268 | ||
269 | PL_sighandlerp = (Sighandler_t) Perl_sighandler; | |
ca0c25f6 | 270 | #ifdef PERL_USES_PL_PIDSTATUS |
34caed6d | 271 | PL_pidstatus = newHV(); |
ca0c25f6 | 272 | #endif |
79072805 | 273 | |
396482e1 | 274 | PL_rs = newSVpvs("\n"); |
dc92893f | 275 | |
cea2e8a9 | 276 | init_stacks(); |
79072805 | 277 | |
748a9306 | 278 | init_ids(); |
a5f75d66 | 279 | |
312caa8e | 280 | JMPENV_BOOTSTRAP; |
f86702cc | 281 | STATUS_ALL_SUCCESS; |
282 | ||
0672f40e | 283 | init_i18nl10n(1); |
36477c24 | 284 | SET_NUMERIC_STANDARD(); |
0b5b802d | 285 | |
ab821d7f | 286 | #if defined(LOCAL_PATCH_COUNT) |
3280af22 | 287 | PL_localpatches = local_patches; /* For possible -v */ |
ab821d7f | 288 | #endif |
289 | ||
52853b95 GS |
290 | #ifdef HAVE_INTERP_INTERN |
291 | sys_intern_init(); | |
292 | #endif | |
293 | ||
3a1ee7e8 | 294 | PerlIO_init(aTHX); /* Hook to IO system */ |
760ac839 | 295 | |
3280af22 NIS |
296 | PL_fdpid = newAV(); /* for remembering popen pids by fd */ |
297 | PL_modglobal = newHV(); /* pointers to per-interpreter module globals */ | |
396482e1 | 298 | PL_errors = newSVpvs(""); |
76f68e9b MHM |
299 | sv_setpvs(PERL_DEBUG_PAD(0), ""); /* For regex debugging. */ |
300 | sv_setpvs(PERL_DEBUG_PAD(1), ""); /* ext/re needs these */ | |
301 | sv_setpvs(PERL_DEBUG_PAD(2), ""); /* even without DEBUGGING. */ | |
1fcf4c12 | 302 | #ifdef USE_ITHREADS |
402d2eb1 NC |
303 | /* First entry is a list of empty elements. It needs to be initialised |
304 | else all hell breaks loose in S_find_uninit_var(). */ | |
305 | Perl_av_create_and_push(aTHX_ &PL_regex_padav, newSVpvs("")); | |
13137afc | 306 | PL_regex_pad = AvARRAY(PL_regex_padav); |
1fcf4c12 | 307 | #endif |
e5dd39fc | 308 | #ifdef USE_REENTRANT_API |
59bd0823 | 309 | Perl_reentrant_init(aTHX); |
e5dd39fc | 310 | #endif |
3d47000e AB |
311 | |
312 | /* Note that strtab is a rather special HV. Assumptions are made | |
313 | about not iterating on it, and not adding tie magic to it. | |
314 | It is properly deallocated in perl_destruct() */ | |
315 | PL_strtab = newHV(); | |
316 | ||
3d47000e AB |
317 | HvSHAREKEYS_off(PL_strtab); /* mandatory */ |
318 | hv_ksplit(PL_strtab, 512); | |
319 | ||
0631ea03 AB |
320 | #if defined(__DYNAMIC__) && (defined(NeXT) || defined(__NeXT__)) |
321 | _dyld_lookup_and_bind | |
322 | ("__environ", (unsigned long *) &environ_pointer, NULL); | |
323 | #endif /* environ */ | |
324 | ||
2f42fcb0 JH |
325 | #ifndef PERL_MICRO |
326 | # ifdef USE_ENVIRON_ARRAY | |
0631ea03 | 327 | PL_origenviron = environ; |
2f42fcb0 | 328 | # endif |
0631ea03 AB |
329 | #endif |
330 | ||
5311654c | 331 | /* Use sysconf(_SC_CLK_TCK) if available, if not |
dbc1d986 | 332 | * available or if the sysconf() fails, use the HZ. |
27da23d5 JH |
333 | * BeOS has those, but returns the wrong value. |
334 | * The HZ if not originally defined has been by now | |
335 | * been defined as CLK_TCK, if available. */ | |
dbc1d986 | 336 | #if defined(HAS_SYSCONF) && defined(_SC_CLK_TCK) && !defined(__BEOS__) |
5311654c JH |
337 | PL_clocktick = sysconf(_SC_CLK_TCK); |
338 | if (PL_clocktick <= 0) | |
339 | #endif | |
340 | PL_clocktick = HZ; | |
341 | ||
081fc587 AB |
342 | PL_stashcache = newHV(); |
343 | ||
e8e3635e | 344 | PL_patchlevel = newSVpvs("v" PERL_VERSION_STRING); |
1e8125c6 | 345 | PL_apiversion = newSVpvs("v" PERL_API_VERSION_STRING); |
d7aa5382 | 346 | |
27da23d5 JH |
347 | #ifdef HAS_MMAP |
348 | if (!PL_mmap_page_size) { | |
349 | #if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_MMAP_PAGE_SIZE)) | |
350 | { | |
351 | SETERRNO(0, SS_NORMAL); | |
352 | # ifdef _SC_PAGESIZE | |
353 | PL_mmap_page_size = sysconf(_SC_PAGESIZE); | |
354 | # else | |
355 | PL_mmap_page_size = sysconf(_SC_MMAP_PAGE_SIZE); | |
356 | # endif | |
357 | if ((long) PL_mmap_page_size < 0) { | |
358 | if (errno) { | |
44f8325f | 359 | SV * const error = ERRSV; |
d4c19fe8 | 360 | SvUPGRADE(error, SVt_PV); |
0510663f | 361 | Perl_croak(aTHX_ "panic: sysconf: %s", SvPV_nolen_const(error)); |
27da23d5 JH |
362 | } |
363 | else | |
364 | Perl_croak(aTHX_ "panic: sysconf: pagesize unknown"); | |
365 | } | |
366 | } | |
367 | #else | |
368 | # ifdef HAS_GETPAGESIZE | |
369 | PL_mmap_page_size = getpagesize(); | |
370 | # else | |
371 | # if defined(I_SYS_PARAM) && defined(PAGESIZE) | |
372 | PL_mmap_page_size = PAGESIZE; /* compiletime, bad */ | |
373 | # endif | |
374 | # endif | |
375 | #endif | |
376 | if (PL_mmap_page_size <= 0) | |
377 | Perl_croak(aTHX_ "panic: bad pagesize %" IVdf, | |
378 | (IV) PL_mmap_page_size); | |
379 | } | |
380 | #endif /* HAS_MMAP */ | |
381 | ||
382 | #if defined(HAS_TIMES) && defined(PERL_NEED_TIMESBASE) | |
383 | PL_timesbase.tms_utime = 0; | |
384 | PL_timesbase.tms_stime = 0; | |
385 | PL_timesbase.tms_cutime = 0; | |
386 | PL_timesbase.tms_cstime = 0; | |
387 | #endif | |
388 | ||
7d113631 NC |
389 | PL_osname = Perl_savepvn(aTHX_ STR_WITH_LEN(OSNAME)); |
390 | ||
a3e6e81e | 391 | PL_registered_mros = newHV(); |
9e169432 NC |
392 | /* Start with 1 bucket, for DFS. It's unlikely we'll need more. */ |
393 | HvMAX(PL_registered_mros) = 0; | |
a3e6e81e | 394 | |
8990e307 | 395 | ENTER; |
79072805 LW |
396 | } |
397 | ||
954c1994 | 398 | /* |
62375a60 NIS |
399 | =for apidoc nothreadhook |
400 | ||
401 | Stub that provides thread hook for perl_destruct when there are | |
402 | no threads. | |
403 | ||
404 | =cut | |
405 | */ | |
406 | ||
407 | int | |
4e9e3734 | 408 | Perl_nothreadhook(pTHX) |
62375a60 | 409 | { |
96a5add6 | 410 | PERL_UNUSED_CONTEXT; |
62375a60 NIS |
411 | return 0; |
412 | } | |
413 | ||
41e4abd8 NC |
414 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
415 | void | |
416 | Perl_dump_sv_child(pTHX_ SV *sv) | |
417 | { | |
418 | ssize_t got; | |
bf357333 NC |
419 | const int sock = PL_dumper_fd; |
420 | const int debug_fd = PerlIO_fileno(Perl_debug_log); | |
bf357333 NC |
421 | union control_un control; |
422 | struct msghdr msg; | |
808ad2d0 | 423 | struct iovec vec[2]; |
bf357333 | 424 | struct cmsghdr *cmptr; |
808ad2d0 NC |
425 | int returned_errno; |
426 | unsigned char buffer[256]; | |
41e4abd8 | 427 | |
7918f24d NC |
428 | PERL_ARGS_ASSERT_DUMP_SV_CHILD; |
429 | ||
bf357333 | 430 | if(sock == -1 || debug_fd == -1) |
41e4abd8 NC |
431 | return; |
432 | ||
433 | PerlIO_flush(Perl_debug_log); | |
434 | ||
bf357333 NC |
435 | /* All these shenanigans are to pass a file descriptor over to our child for |
436 | it to dump out to. We can't let it hold open the file descriptor when it | |
437 | forks, as the file descriptor it will dump to can turn out to be one end | |
438 | of pipe that some other process will wait on for EOF. (So as it would | |
b293a5f8 | 439 | be open, the wait would be forever.) */ |
bf357333 NC |
440 | |
441 | msg.msg_control = control.control; | |
442 | msg.msg_controllen = sizeof(control.control); | |
443 | /* We're a connected socket so we don't need a destination */ | |
444 | msg.msg_name = NULL; | |
445 | msg.msg_namelen = 0; | |
446 | msg.msg_iov = vec; | |
808ad2d0 | 447 | msg.msg_iovlen = 1; |
bf357333 NC |
448 | |
449 | cmptr = CMSG_FIRSTHDR(&msg); | |
450 | cmptr->cmsg_len = CMSG_LEN(sizeof(int)); | |
451 | cmptr->cmsg_level = SOL_SOCKET; | |
452 | cmptr->cmsg_type = SCM_RIGHTS; | |
453 | *((int *)CMSG_DATA(cmptr)) = 1; | |
454 | ||
455 | vec[0].iov_base = (void*)&sv; | |
456 | vec[0].iov_len = sizeof(sv); | |
457 | got = sendmsg(sock, &msg, 0); | |
41e4abd8 NC |
458 | |
459 | if(got < 0) { | |
bf357333 | 460 | perror("Debug leaking scalars parent sendmsg failed"); |
41e4abd8 NC |
461 | abort(); |
462 | } | |
bf357333 NC |
463 | if(got < sizeof(sv)) { |
464 | perror("Debug leaking scalars parent short sendmsg"); | |
41e4abd8 NC |
465 | abort(); |
466 | } | |
467 | ||
808ad2d0 NC |
468 | /* Return protocol is |
469 | int: errno value | |
470 | unsigned char: length of location string (0 for empty) | |
471 | unsigned char*: string (not terminated) | |
472 | */ | |
473 | vec[0].iov_base = (void*)&returned_errno; | |
474 | vec[0].iov_len = sizeof(returned_errno); | |
475 | vec[1].iov_base = buffer; | |
476 | vec[1].iov_len = 1; | |
477 | ||
478 | got = readv(sock, vec, 2); | |
41e4abd8 NC |
479 | |
480 | if(got < 0) { | |
481 | perror("Debug leaking scalars parent read failed"); | |
808ad2d0 | 482 | PerlIO_flush(PerlIO_stderr()); |
41e4abd8 NC |
483 | abort(); |
484 | } | |
808ad2d0 | 485 | if(got < sizeof(returned_errno) + 1) { |
41e4abd8 | 486 | perror("Debug leaking scalars parent short read"); |
808ad2d0 | 487 | PerlIO_flush(PerlIO_stderr()); |
41e4abd8 NC |
488 | abort(); |
489 | } | |
490 | ||
808ad2d0 NC |
491 | if (*buffer) { |
492 | got = read(sock, buffer + 1, *buffer); | |
493 | if(got < 0) { | |
494 | perror("Debug leaking scalars parent read 2 failed"); | |
495 | PerlIO_flush(PerlIO_stderr()); | |
496 | abort(); | |
497 | } | |
498 | ||
499 | if(got < *buffer) { | |
500 | perror("Debug leaking scalars parent short read 2"); | |
501 | PerlIO_flush(PerlIO_stderr()); | |
502 | abort(); | |
503 | } | |
504 | } | |
505 | ||
506 | if (returned_errno || *buffer) { | |
507 | Perl_warn(aTHX_ "Debug leaking scalars child failed%s%.*s with errno" | |
508 | " %d: %s", (*buffer ? " at " : ""), (int) *buffer, buffer + 1, | |
509 | returned_errno, strerror(returned_errno)); | |
41e4abd8 NC |
510 | } |
511 | } | |
512 | #endif | |
513 | ||
62375a60 | 514 | /* |
954c1994 GS |
515 | =for apidoc perl_destruct |
516 | ||
517 | Shuts down a Perl interpreter. See L<perlembed>. | |
518 | ||
519 | =cut | |
520 | */ | |
521 | ||
31d77e54 | 522 | int |
0cb96387 | 523 | perl_destruct(pTHXx) |
79072805 | 524 | { |
27da23d5 | 525 | dVAR; |
be2ea8ed | 526 | VOL signed char destruct_level; /* see possible values in intrpvar.h */ |
a0d0e21e | 527 | HV *hv; |
2aa47728 | 528 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
2aa47728 NC |
529 | pid_t child; |
530 | #endif | |
8990e307 | 531 | |
7918f24d NC |
532 | PERL_ARGS_ASSERT_PERL_DESTRUCT; |
533 | #ifndef MULTIPLICITY | |
ed6c66dd | 534 | PERL_UNUSED_ARG(my_perl); |
7918f24d | 535 | #endif |
9d4ba2ae | 536 | |
3d22c4f0 GG |
537 | assert(PL_scopestack_ix == 1); |
538 | ||
7766f137 GS |
539 | /* wait for all pseudo-forked children to finish */ |
540 | PERL_WAIT_FOR_CHILDREN; | |
541 | ||
3280af22 | 542 | destruct_level = PL_perl_destruct_level; |
4633a7c4 LW |
543 | #ifdef DEBUGGING |
544 | { | |
9d4ba2ae AL |
545 | const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL"); |
546 | if (s) { | |
e1ec3a88 | 547 | const int i = atoi(s); |
5f05dabc | 548 | if (destruct_level < i) |
549 | destruct_level = i; | |
550 | } | |
4633a7c4 LW |
551 | } |
552 | #endif | |
553 | ||
27da23d5 | 554 | if (PL_exit_flags & PERL_EXIT_DESTRUCT_END) { |
f3faeb53 AB |
555 | dJMPENV; |
556 | int x = 0; | |
557 | ||
558 | JMPENV_PUSH(x); | |
1b6737cc | 559 | PERL_UNUSED_VAR(x); |
f3faeb53 AB |
560 | if (PL_endav && !PL_minus_c) |
561 | call_list(PL_scopestack_ix, PL_endav); | |
562 | JMPENV_POP; | |
26f423df | 563 | } |
f3faeb53 | 564 | LEAVE; |
a0d0e21e | 565 | FREETMPS; |
3d22c4f0 | 566 | assert(PL_scopestack_ix == 0); |
a0d0e21e | 567 | |
e00b64d4 | 568 | /* Need to flush since END blocks can produce output */ |
f13a2bc0 | 569 | my_fflush_all(); |
e00b64d4 | 570 | |
16c91539 | 571 | if (PL_threadhook(aTHX)) { |
62375a60 | 572 | /* Threads hook has vetoed further cleanup */ |
c301d606 | 573 | PL_veto_cleanup = TRUE; |
37038d91 | 574 | return STATUS_EXIT; |
62375a60 NIS |
575 | } |
576 | ||
2aa47728 NC |
577 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
578 | if (destruct_level != 0) { | |
579 | /* Fork here to create a child. Our child's job is to preserve the | |
580 | state of scalars prior to destruction, so that we can instruct it | |
581 | to dump any scalars that we later find have leaked. | |
582 | There's no subtlety in this code - it assumes POSIX, and it doesn't | |
583 | fail gracefully */ | |
584 | int fd[2]; | |
585 | ||
586 | if(socketpair(AF_UNIX, SOCK_STREAM, 0, fd)) { | |
587 | perror("Debug leaking scalars socketpair failed"); | |
588 | abort(); | |
589 | } | |
590 | ||
591 | child = fork(); | |
592 | if(child == -1) { | |
593 | perror("Debug leaking scalars fork failed"); | |
594 | abort(); | |
595 | } | |
596 | if (!child) { | |
597 | /* We are the child */ | |
3125a5a4 NC |
598 | const int sock = fd[1]; |
599 | const int debug_fd = PerlIO_fileno(Perl_debug_log); | |
600 | int f; | |
808ad2d0 NC |
601 | const char *where; |
602 | /* Our success message is an integer 0, and a char 0 */ | |
b61433a9 | 603 | static const char success[sizeof(int) + 1] = {0}; |
3125a5a4 | 604 | |
2aa47728 | 605 | close(fd[0]); |
2aa47728 | 606 | |
3125a5a4 NC |
607 | /* We need to close all other file descriptors otherwise we end up |
608 | with interesting hangs, where the parent closes its end of a | |
609 | pipe, and sits waiting for (another) child to terminate. Only | |
610 | that child never terminates, because it never gets EOF, because | |
bf357333 NC |
611 | we also have the far end of the pipe open. We even need to |
612 | close the debugging fd, because sometimes it happens to be one | |
613 | end of a pipe, and a process is waiting on the other end for | |
614 | EOF. Normally it would be closed at some point earlier in | |
615 | destruction, but if we happen to cause the pipe to remain open, | |
616 | EOF never occurs, and we get an infinite hang. Hence all the | |
617 | games to pass in a file descriptor if it's actually needed. */ | |
3125a5a4 NC |
618 | |
619 | f = sysconf(_SC_OPEN_MAX); | |
620 | if(f < 0) { | |
808ad2d0 NC |
621 | where = "sysconf failed"; |
622 | goto abort; | |
3125a5a4 NC |
623 | } |
624 | while (f--) { | |
625 | if (f == sock) | |
626 | continue; | |
3125a5a4 NC |
627 | close(f); |
628 | } | |
629 | ||
2aa47728 NC |
630 | while (1) { |
631 | SV *target; | |
bf357333 NC |
632 | union control_un control; |
633 | struct msghdr msg; | |
634 | struct iovec vec[1]; | |
635 | struct cmsghdr *cmptr; | |
636 | ssize_t got; | |
637 | int got_fd; | |
638 | ||
639 | msg.msg_control = control.control; | |
640 | msg.msg_controllen = sizeof(control.control); | |
641 | /* We're a connected socket so we don't need a source */ | |
642 | msg.msg_name = NULL; | |
643 | msg.msg_namelen = 0; | |
644 | msg.msg_iov = vec; | |
645 | msg.msg_iovlen = sizeof(vec)/sizeof(vec[0]); | |
646 | ||
647 | vec[0].iov_base = (void*)⌖ | |
648 | vec[0].iov_len = sizeof(target); | |
649 | ||
650 | got = recvmsg(sock, &msg, 0); | |
2aa47728 NC |
651 | |
652 | if(got == 0) | |
653 | break; | |
654 | if(got < 0) { | |
808ad2d0 NC |
655 | where = "recv failed"; |
656 | goto abort; | |
2aa47728 NC |
657 | } |
658 | if(got < sizeof(target)) { | |
808ad2d0 NC |
659 | where = "short recv"; |
660 | goto abort; | |
2aa47728 | 661 | } |
bf357333 | 662 | |
808ad2d0 NC |
663 | if(!(cmptr = CMSG_FIRSTHDR(&msg))) { |
664 | where = "no cmsg"; | |
665 | goto abort; | |
666 | } | |
667 | if(cmptr->cmsg_len != CMSG_LEN(sizeof(int))) { | |
668 | where = "wrong cmsg_len"; | |
669 | goto abort; | |
670 | } | |
671 | if(cmptr->cmsg_level != SOL_SOCKET) { | |
672 | where = "wrong cmsg_level"; | |
673 | goto abort; | |
674 | } | |
675 | if(cmptr->cmsg_type != SCM_RIGHTS) { | |
676 | where = "wrong cmsg_type"; | |
677 | goto abort; | |
678 | } | |
bf357333 NC |
679 | |
680 | got_fd = *(int*)CMSG_DATA(cmptr); | |
681 | /* For our last little bit of trickery, put the file descriptor | |
682 | back into Perl_debug_log, as if we never actually closed it | |
683 | */ | |
808ad2d0 NC |
684 | if(got_fd != debug_fd) { |
685 | if (dup2(got_fd, debug_fd) == -1) { | |
686 | where = "dup2"; | |
687 | goto abort; | |
688 | } | |
689 | } | |
2aa47728 | 690 | sv_dump(target); |
bf357333 | 691 | |
2aa47728 NC |
692 | PerlIO_flush(Perl_debug_log); |
693 | ||
808ad2d0 | 694 | got = write(sock, &success, sizeof(success)); |
2aa47728 NC |
695 | |
696 | if(got < 0) { | |
808ad2d0 NC |
697 | where = "write failed"; |
698 | goto abort; | |
2aa47728 | 699 | } |
808ad2d0 NC |
700 | if(got < sizeof(success)) { |
701 | where = "short write"; | |
702 | goto abort; | |
2aa47728 NC |
703 | } |
704 | } | |
705 | _exit(0); | |
808ad2d0 NC |
706 | abort: |
707 | { | |
708 | int send_errno = errno; | |
709 | unsigned char length = (unsigned char) strlen(where); | |
710 | struct iovec failure[3] = { | |
711 | {(void*)&send_errno, sizeof(send_errno)}, | |
712 | {&length, 1}, | |
713 | {(void*)where, length} | |
714 | }; | |
715 | int got = writev(sock, failure, 3); | |
716 | /* Bad news travels fast. Faster than data. We'll get a SIGPIPE | |
717 | in the parent if we try to read from the socketpair after the | |
718 | child has exited, even if there was data to read. | |
719 | So sleep a bit to give the parent a fighting chance of | |
720 | reading the data. */ | |
721 | sleep(2); | |
722 | _exit((got == -1) ? errno : 0); | |
723 | } | |
bf357333 | 724 | /* End of child. */ |
2aa47728 | 725 | } |
41e4abd8 | 726 | PL_dumper_fd = fd[0]; |
2aa47728 NC |
727 | close(fd[1]); |
728 | } | |
729 | #endif | |
730 | ||
ff0cee69 | 731 | /* We must account for everything. */ |
732 | ||
733 | /* Destroy the main CV and syntax tree */ | |
17fbfdf6 NC |
734 | /* Do this now, because destroying ops can cause new SVs to be generated |
735 | in Perl_pad_swipe, and when running with -DDEBUG_LEAKING_SCALARS they | |
736 | PL_curcop to point to a valid op from which the filename structure | |
737 | member is copied. */ | |
738 | PL_curcop = &PL_compiling; | |
3280af22 | 739 | if (PL_main_root) { |
4e380990 DM |
740 | /* ensure comppad/curpad to refer to main's pad */ |
741 | if (CvPADLIST(PL_main_cv)) { | |
742 | PAD_SET_CUR_NOSAVE(CvPADLIST(PL_main_cv), 1); | |
743 | } | |
3280af22 | 744 | op_free(PL_main_root); |
5f66b61c | 745 | PL_main_root = NULL; |
a0d0e21e | 746 | } |
5f66b61c | 747 | PL_main_start = NULL; |
aac9d523 DM |
748 | /* note that PL_main_cv isn't usually actually freed at this point, |
749 | * due to the CvOUTSIDE refs from subs compiled within it. It will | |
750 | * get freed once all the subs are freed in sv_clean_all(), for | |
751 | * destruct_level > 0 */ | |
3280af22 | 752 | SvREFCNT_dec(PL_main_cv); |
601f1833 | 753 | PL_main_cv = NULL; |
24d3c518 | 754 | PL_dirty = TRUE; |
ff0cee69 | 755 | |
13621cfb NIS |
756 | /* Tell PerlIO we are about to tear things apart in case |
757 | we have layers which are using resources that should | |
758 | be cleaned up now. | |
759 | */ | |
760 | ||
761 | PerlIO_destruct(aTHX); | |
762 | ||
3280af22 | 763 | if (PL_sv_objcount) { |
a0d0e21e LW |
764 | /* |
765 | * Try to destruct global references. We do this first so that the | |
766 | * destructors and destructees still exist. Some sv's might remain. | |
767 | * Non-referenced objects are on their own. | |
768 | */ | |
a0d0e21e | 769 | sv_clean_objs(); |
bf9cdc68 | 770 | PL_sv_objcount = 0; |
8990e307 LW |
771 | } |
772 | ||
5cd24f17 | 773 | /* unhook hooks which will soon be, or use, destroyed data */ |
3280af22 | 774 | SvREFCNT_dec(PL_warnhook); |
a0714e2c | 775 | PL_warnhook = NULL; |
3280af22 | 776 | SvREFCNT_dec(PL_diehook); |
a0714e2c | 777 | PL_diehook = NULL; |
5cd24f17 | 778 | |
4b556e6c | 779 | /* call exit list functions */ |
3280af22 | 780 | while (PL_exitlistlen-- > 0) |
acfe0abc | 781 | PL_exitlist[PL_exitlistlen].fn(aTHX_ PL_exitlist[PL_exitlistlen].ptr); |
4b556e6c | 782 | |
3280af22 | 783 | Safefree(PL_exitlist); |
4b556e6c | 784 | |
1c4916e5 CB |
785 | PL_exitlist = NULL; |
786 | PL_exitlistlen = 0; | |
787 | ||
a3e6e81e NC |
788 | SvREFCNT_dec(PL_registered_mros); |
789 | ||
551a8b83 | 790 | /* jettison our possibly duplicated environment */ |
4b647fb0 DM |
791 | /* if PERL_USE_SAFE_PUTENV is defined environ will not have been copied |
792 | * so we certainly shouldn't free it here | |
793 | */ | |
2f42fcb0 | 794 | #ifndef PERL_MICRO |
4b647fb0 | 795 | #if defined(USE_ENVIRON_ARRAY) && !defined(PERL_USE_SAFE_PUTENV) |
50acdf95 | 796 | if (environ != PL_origenviron && !PL_use_safe_putenv |
4efc5df6 GS |
797 | #ifdef USE_ITHREADS |
798 | /* only main thread can free environ[0] contents */ | |
799 | && PL_curinterp == aTHX | |
800 | #endif | |
801 | ) | |
802 | { | |
551a8b83 JH |
803 | I32 i; |
804 | ||
805 | for (i = 0; environ[i]; i++) | |
4b420006 | 806 | safesysfree(environ[i]); |
0631ea03 | 807 | |
4b420006 JH |
808 | /* Must use safesysfree() when working with environ. */ |
809 | safesysfree(environ); | |
551a8b83 JH |
810 | |
811 | environ = PL_origenviron; | |
812 | } | |
813 | #endif | |
2f42fcb0 | 814 | #endif /* !PERL_MICRO */ |
551a8b83 | 815 | |
30985c42 JH |
816 | if (destruct_level == 0) { |
817 | ||
818 | DEBUG_P(debprofdump()); | |
819 | ||
820 | #if defined(PERLIO_LAYERS) | |
821 | /* No more IO - including error messages ! */ | |
822 | PerlIO_cleanup(aTHX); | |
823 | #endif | |
824 | ||
825 | CopFILE_free(&PL_compiling); | |
826 | CopSTASH_free(&PL_compiling); | |
827 | ||
828 | /* The exit() function will do everything that needs doing. */ | |
829 | return STATUS_EXIT; | |
830 | } | |
831 | ||
5f8cb046 DM |
832 | #ifdef USE_ITHREADS |
833 | /* the syntax tree is shared between clones | |
834 | * so op_free(PL_main_root) only ReREFCNT_dec's | |
835 | * REGEXPs in the parent interpreter | |
836 | * we need to manually ReREFCNT_dec for the clones | |
837 | */ | |
5f8cb046 | 838 | SvREFCNT_dec(PL_regex_padav); |
7d49f689 | 839 | PL_regex_padav = NULL; |
5f8cb046 DM |
840 | PL_regex_pad = NULL; |
841 | #endif | |
842 | ||
ad64d0ec | 843 | SvREFCNT_dec(MUTABLE_SV(PL_stashcache)); |
081fc587 AB |
844 | PL_stashcache = NULL; |
845 | ||
5f05dabc | 846 | /* loosen bonds of global variables */ |
847 | ||
2f9285f8 DM |
848 | /* XXX can PL_parser still be non-null here? */ |
849 | if(PL_parser && PL_parser->rsfp) { | |
850 | (void)PerlIO_close(PL_parser->rsfp); | |
851 | PL_parser->rsfp = NULL; | |
8ebc5c01 | 852 | } |
853 | ||
84386e14 RGS |
854 | if (PL_minus_F) { |
855 | Safefree(PL_splitstr); | |
856 | PL_splitstr = NULL; | |
857 | } | |
858 | ||
8ebc5c01 | 859 | /* switches */ |
3280af22 NIS |
860 | PL_minus_n = FALSE; |
861 | PL_minus_p = FALSE; | |
862 | PL_minus_l = FALSE; | |
863 | PL_minus_a = FALSE; | |
864 | PL_minus_F = FALSE; | |
865 | PL_doswitches = FALSE; | |
599cee73 | 866 | PL_dowarn = G_WARN_OFF; |
3280af22 | 867 | PL_sawampersand = FALSE; /* must save all match strings */ |
3280af22 NIS |
868 | PL_unsafe = FALSE; |
869 | ||
870 | Safefree(PL_inplace); | |
bd61b366 | 871 | PL_inplace = NULL; |
a7cb1f99 | 872 | SvREFCNT_dec(PL_patchlevel); |
1e8125c6 | 873 | SvREFCNT_dec(PL_apiversion); |
3280af22 NIS |
874 | |
875 | if (PL_e_script) { | |
876 | SvREFCNT_dec(PL_e_script); | |
a0714e2c | 877 | PL_e_script = NULL; |
8ebc5c01 | 878 | } |
879 | ||
bf9cdc68 RG |
880 | PL_perldb = 0; |
881 | ||
8ebc5c01 | 882 | /* magical thingies */ |
883 | ||
e23d9e2f CS |
884 | SvREFCNT_dec(PL_ofsgv); /* *, */ |
885 | PL_ofsgv = NULL; | |
5f05dabc | 886 | |
7889fe52 | 887 | SvREFCNT_dec(PL_ors_sv); /* $\ */ |
a0714e2c | 888 | PL_ors_sv = NULL; |
8ebc5c01 | 889 | |
3280af22 | 890 | SvREFCNT_dec(PL_rs); /* $/ */ |
a0714e2c | 891 | PL_rs = NULL; |
dc92893f | 892 | |
d33b2eba | 893 | Safefree(PL_osname); /* $^O */ |
bd61b366 | 894 | PL_osname = NULL; |
5f05dabc | 895 | |
3280af22 | 896 | SvREFCNT_dec(PL_statname); |
a0714e2c SS |
897 | PL_statname = NULL; |
898 | PL_statgv = NULL; | |
5f05dabc | 899 | |
8ebc5c01 | 900 | /* defgv, aka *_ should be taken care of elsewhere */ |
901 | ||
8ebc5c01 | 902 | /* clean up after study() */ |
3280af22 | 903 | SvREFCNT_dec(PL_lastscream); |
a0714e2c | 904 | PL_lastscream = NULL; |
3280af22 NIS |
905 | Safefree(PL_screamfirst); |
906 | PL_screamfirst = 0; | |
907 | Safefree(PL_screamnext); | |
908 | PL_screamnext = 0; | |
8ebc5c01 | 909 | |
7d5ea4e7 GS |
910 | /* float buffer */ |
911 | Safefree(PL_efloatbuf); | |
bd61b366 | 912 | PL_efloatbuf = NULL; |
7d5ea4e7 GS |
913 | PL_efloatsize = 0; |
914 | ||
8ebc5c01 | 915 | /* startup and shutdown function lists */ |
3280af22 | 916 | SvREFCNT_dec(PL_beginav); |
5a837c8f | 917 | SvREFCNT_dec(PL_beginav_save); |
3280af22 | 918 | SvREFCNT_dec(PL_endav); |
7d30b5c4 | 919 | SvREFCNT_dec(PL_checkav); |
ece599bd | 920 | SvREFCNT_dec(PL_checkav_save); |
3c10abe3 AG |
921 | SvREFCNT_dec(PL_unitcheckav); |
922 | SvREFCNT_dec(PL_unitcheckav_save); | |
3280af22 | 923 | SvREFCNT_dec(PL_initav); |
7d49f689 NC |
924 | PL_beginav = NULL; |
925 | PL_beginav_save = NULL; | |
926 | PL_endav = NULL; | |
927 | PL_checkav = NULL; | |
928 | PL_checkav_save = NULL; | |
3c10abe3 AG |
929 | PL_unitcheckav = NULL; |
930 | PL_unitcheckav_save = NULL; | |
7d49f689 | 931 | PL_initav = NULL; |
5618dfe8 | 932 | |
8ebc5c01 | 933 | /* shortcuts just get cleared */ |
a0714e2c SS |
934 | PL_envgv = NULL; |
935 | PL_incgv = NULL; | |
936 | PL_hintgv = NULL; | |
937 | PL_errgv = NULL; | |
938 | PL_argvgv = NULL; | |
939 | PL_argvoutgv = NULL; | |
940 | PL_stdingv = NULL; | |
941 | PL_stderrgv = NULL; | |
942 | PL_last_in_gv = NULL; | |
943 | PL_replgv = NULL; | |
944 | PL_DBgv = NULL; | |
945 | PL_DBline = NULL; | |
946 | PL_DBsub = NULL; | |
947 | PL_DBsingle = NULL; | |
948 | PL_DBtrace = NULL; | |
949 | PL_DBsignal = NULL; | |
601f1833 | 950 | PL_DBcv = NULL; |
7d49f689 | 951 | PL_dbargs = NULL; |
5c284bb0 | 952 | PL_debstash = NULL; |
8ebc5c01 | 953 | |
7a1c5554 | 954 | SvREFCNT_dec(PL_argvout_stack); |
7d49f689 | 955 | PL_argvout_stack = NULL; |
8ebc5c01 | 956 | |
5c831c24 | 957 | SvREFCNT_dec(PL_modglobal); |
5c284bb0 | 958 | PL_modglobal = NULL; |
5c831c24 | 959 | SvREFCNT_dec(PL_preambleav); |
7d49f689 | 960 | PL_preambleav = NULL; |
5c831c24 | 961 | SvREFCNT_dec(PL_subname); |
a0714e2c | 962 | PL_subname = NULL; |
ca0c25f6 | 963 | #ifdef PERL_USES_PL_PIDSTATUS |
5c831c24 | 964 | SvREFCNT_dec(PL_pidstatus); |
5c284bb0 | 965 | PL_pidstatus = NULL; |
ca0c25f6 | 966 | #endif |
5c831c24 | 967 | SvREFCNT_dec(PL_toptarget); |
a0714e2c | 968 | PL_toptarget = NULL; |
5c831c24 | 969 | SvREFCNT_dec(PL_bodytarget); |
a0714e2c SS |
970 | PL_bodytarget = NULL; |
971 | PL_formtarget = NULL; | |
5c831c24 | 972 | |
d33b2eba | 973 | /* free locale stuff */ |
b9582b6a | 974 | #ifdef USE_LOCALE_COLLATE |
d33b2eba | 975 | Safefree(PL_collation_name); |
bd61b366 | 976 | PL_collation_name = NULL; |
b9582b6a | 977 | #endif |
d33b2eba | 978 | |
b9582b6a | 979 | #ifdef USE_LOCALE_NUMERIC |
d33b2eba | 980 | Safefree(PL_numeric_name); |
bd61b366 | 981 | PL_numeric_name = NULL; |
a453c169 | 982 | SvREFCNT_dec(PL_numeric_radix_sv); |
a0714e2c | 983 | PL_numeric_radix_sv = NULL; |
b9582b6a | 984 | #endif |
d33b2eba | 985 | |
5c831c24 GS |
986 | /* clear utf8 character classes */ |
987 | SvREFCNT_dec(PL_utf8_alnum); | |
5c831c24 GS |
988 | SvREFCNT_dec(PL_utf8_ascii); |
989 | SvREFCNT_dec(PL_utf8_alpha); | |
990 | SvREFCNT_dec(PL_utf8_space); | |
991 | SvREFCNT_dec(PL_utf8_cntrl); | |
992 | SvREFCNT_dec(PL_utf8_graph); | |
993 | SvREFCNT_dec(PL_utf8_digit); | |
994 | SvREFCNT_dec(PL_utf8_upper); | |
995 | SvREFCNT_dec(PL_utf8_lower); | |
996 | SvREFCNT_dec(PL_utf8_print); | |
997 | SvREFCNT_dec(PL_utf8_punct); | |
998 | SvREFCNT_dec(PL_utf8_xdigit); | |
999 | SvREFCNT_dec(PL_utf8_mark); | |
1000 | SvREFCNT_dec(PL_utf8_toupper); | |
4dbdbdc2 | 1001 | SvREFCNT_dec(PL_utf8_totitle); |
5c831c24 | 1002 | SvREFCNT_dec(PL_utf8_tolower); |
b4e400f9 | 1003 | SvREFCNT_dec(PL_utf8_tofold); |
82686b01 JH |
1004 | SvREFCNT_dec(PL_utf8_idstart); |
1005 | SvREFCNT_dec(PL_utf8_idcont); | |
a0714e2c | 1006 | PL_utf8_alnum = NULL; |
a0714e2c SS |
1007 | PL_utf8_ascii = NULL; |
1008 | PL_utf8_alpha = NULL; | |
1009 | PL_utf8_space = NULL; | |
1010 | PL_utf8_cntrl = NULL; | |
1011 | PL_utf8_graph = NULL; | |
1012 | PL_utf8_digit = NULL; | |
1013 | PL_utf8_upper = NULL; | |
1014 | PL_utf8_lower = NULL; | |
1015 | PL_utf8_print = NULL; | |
1016 | PL_utf8_punct = NULL; | |
1017 | PL_utf8_xdigit = NULL; | |
1018 | PL_utf8_mark = NULL; | |
1019 | PL_utf8_toupper = NULL; | |
1020 | PL_utf8_totitle = NULL; | |
1021 | PL_utf8_tolower = NULL; | |
1022 | PL_utf8_tofold = NULL; | |
1023 | PL_utf8_idstart = NULL; | |
1024 | PL_utf8_idcont = NULL; | |
5c831c24 | 1025 | |
971a9dd3 | 1026 | if (!specialWARN(PL_compiling.cop_warnings)) |
72dc9ed5 | 1027 | PerlMemShared_free(PL_compiling.cop_warnings); |
a0714e2c | 1028 | PL_compiling.cop_warnings = NULL; |
c28fe1ec NC |
1029 | Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash); |
1030 | PL_compiling.cop_hints_hash = NULL; | |
05ec9bb3 NIS |
1031 | CopFILE_free(&PL_compiling); |
1032 | CopSTASH_free(&PL_compiling); | |
5c831c24 | 1033 | |
a0d0e21e | 1034 | /* Prepare to destruct main symbol table. */ |
5f05dabc | 1035 | |
3280af22 | 1036 | hv = PL_defstash; |
ca556bcd DM |
1037 | /* break ref loop *:: <=> %:: */ |
1038 | (void)hv_delete(hv, "main::", 6, G_DISCARD); | |
3280af22 | 1039 | PL_defstash = 0; |
a0d0e21e | 1040 | SvREFCNT_dec(hv); |
5c831c24 | 1041 | SvREFCNT_dec(PL_curstname); |
a0714e2c | 1042 | PL_curstname = NULL; |
a0d0e21e | 1043 | |
5a844595 GS |
1044 | /* clear queued errors */ |
1045 | SvREFCNT_dec(PL_errors); | |
a0714e2c | 1046 | PL_errors = NULL; |
5a844595 | 1047 | |
dd69841b BB |
1048 | SvREFCNT_dec(PL_isarev); |
1049 | ||
a0d0e21e | 1050 | FREETMPS; |
9b387841 | 1051 | if (destruct_level >= 2) { |
3280af22 | 1052 | if (PL_scopestack_ix != 0) |
9b387841 NC |
1053 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL), |
1054 | "Unbalanced scopes: %ld more ENTERs than LEAVEs\n", | |
1055 | (long)PL_scopestack_ix); | |
3280af22 | 1056 | if (PL_savestack_ix != 0) |
9b387841 NC |
1057 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL), |
1058 | "Unbalanced saves: %ld more saves than restores\n", | |
1059 | (long)PL_savestack_ix); | |
3280af22 | 1060 | if (PL_tmps_floor != -1) |
9b387841 NC |
1061 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced tmps: %ld more allocs than frees\n", |
1062 | (long)PL_tmps_floor + 1); | |
a0d0e21e | 1063 | if (cxstack_ix != -1) |
9b387841 NC |
1064 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced context: %ld more PUSHes than POPs\n", |
1065 | (long)cxstack_ix + 1); | |
a0d0e21e | 1066 | } |
8990e307 | 1067 | |
776df701 | 1068 | #ifdef PERL_IMPLICIT_CONTEXT |
57bb2458 JH |
1069 | /* the entries in this list are allocated via SV PVX's, so get freed |
1070 | * in sv_clean_all */ | |
1071 | Safefree(PL_my_cxt_list); | |
776df701 | 1072 | #endif |
57bb2458 | 1073 | |
8990e307 | 1074 | /* Now absolutely destruct everything, somehow or other, loops or no. */ |
5226ed68 JH |
1075 | |
1076 | /* the 2 is for PL_fdpid and PL_strtab */ | |
d17ea597 | 1077 | while (sv_clean_all() > 2) |
5226ed68 JH |
1078 | ; |
1079 | ||
d4777f27 GS |
1080 | AvREAL_off(PL_fdpid); /* no surviving entries */ |
1081 | SvREFCNT_dec(PL_fdpid); /* needed in io_close() */ | |
7d49f689 | 1082 | PL_fdpid = NULL; |
d33b2eba | 1083 | |
6c644e78 GS |
1084 | #ifdef HAVE_INTERP_INTERN |
1085 | sys_intern_clear(); | |
1086 | #endif | |
1087 | ||
6e72f9df | 1088 | /* Destruct the global string table. */ |
1089 | { | |
1090 | /* Yell and reset the HeVAL() slots that are still holding refcounts, | |
1091 | * so that sv_free() won't fail on them. | |
80459961 NC |
1092 | * Now that the global string table is using a single hunk of memory |
1093 | * for both HE and HEK, we either need to explicitly unshare it the | |
1094 | * correct way, or actually free things here. | |
6e72f9df | 1095 | */ |
80459961 NC |
1096 | I32 riter = 0; |
1097 | const I32 max = HvMAX(PL_strtab); | |
c4420975 | 1098 | HE * const * const array = HvARRAY(PL_strtab); |
80459961 NC |
1099 | HE *hent = array[0]; |
1100 | ||
6e72f9df | 1101 | for (;;) { |
0453d815 | 1102 | if (hent && ckWARN_d(WARN_INTERNAL)) { |
44f8325f | 1103 | HE * const next = HeNEXT(hent); |
9014280d | 1104 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
44f8325f | 1105 | "Unbalanced string table refcount: (%ld) for \"%s\"", |
de616631 | 1106 | (long)hent->he_valu.hent_refcount, HeKEY(hent)); |
80459961 NC |
1107 | Safefree(hent); |
1108 | hent = next; | |
6e72f9df | 1109 | } |
1110 | if (!hent) { | |
1111 | if (++riter > max) | |
1112 | break; | |
1113 | hent = array[riter]; | |
1114 | } | |
1115 | } | |
80459961 NC |
1116 | |
1117 | Safefree(array); | |
1118 | HvARRAY(PL_strtab) = 0; | |
1119 | HvTOTALKEYS(PL_strtab) = 0; | |
6e72f9df | 1120 | } |
3280af22 | 1121 | SvREFCNT_dec(PL_strtab); |
6e72f9df | 1122 | |
e652bb2f | 1123 | #ifdef USE_ITHREADS |
c21d1a0f | 1124 | /* free the pointer tables used for cloning */ |
a0739874 | 1125 | ptr_table_free(PL_ptr_table); |
bf9cdc68 | 1126 | PL_ptr_table = (PTR_TBL_t*)NULL; |
53186e96 | 1127 | #endif |
a0739874 | 1128 | |
d33b2eba GS |
1129 | /* free special SVs */ |
1130 | ||
1131 | SvREFCNT(&PL_sv_yes) = 0; | |
1132 | sv_clear(&PL_sv_yes); | |
1133 | SvANY(&PL_sv_yes) = NULL; | |
4c5e2b0d | 1134 | SvFLAGS(&PL_sv_yes) = 0; |
d33b2eba GS |
1135 | |
1136 | SvREFCNT(&PL_sv_no) = 0; | |
1137 | sv_clear(&PL_sv_no); | |
1138 | SvANY(&PL_sv_no) = NULL; | |
4c5e2b0d | 1139 | SvFLAGS(&PL_sv_no) = 0; |
01724ea0 | 1140 | |
9f375a43 DM |
1141 | { |
1142 | int i; | |
1143 | for (i=0; i<=2; i++) { | |
1144 | SvREFCNT(PERL_DEBUG_PAD(i)) = 0; | |
1145 | sv_clear(PERL_DEBUG_PAD(i)); | |
1146 | SvANY(PERL_DEBUG_PAD(i)) = NULL; | |
1147 | SvFLAGS(PERL_DEBUG_PAD(i)) = 0; | |
1148 | } | |
1149 | } | |
1150 | ||
0453d815 | 1151 | if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL)) |
9014280d | 1152 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Scalars leaked: %ld\n", (long)PL_sv_count); |
6e72f9df | 1153 | |
eba0f806 DM |
1154 | #ifdef DEBUG_LEAKING_SCALARS |
1155 | if (PL_sv_count != 0) { | |
1156 | SV* sva; | |
1157 | SV* sv; | |
1158 | register SV* svend; | |
1159 | ||
ad64d0ec | 1160 | for (sva = PL_sv_arenaroot; sva; sva = MUTABLE_SV(SvANY(sva))) { |
eba0f806 DM |
1161 | svend = &sva[SvREFCNT(sva)]; |
1162 | for (sv = sva + 1; sv < svend; ++sv) { | |
1163 | if (SvTYPE(sv) != SVTYPEMASK) { | |
a548cda8 | 1164 | PerlIO_printf(Perl_debug_log, "leaked: sv=0x%p" |
61b61456 | 1165 | " flags=0x%"UVxf |
fd0854ff | 1166 | " refcnt=%"UVuf pTHX__FORMAT "\n" |
cd676548 DM |
1167 | "\tallocated at %s:%d %s %s (parent 0x%"UVxf");" |
1168 | "serial %"UVuf"\n", | |
574b8821 NC |
1169 | (void*)sv, (UV)sv->sv_flags, (UV)sv->sv_refcnt |
1170 | pTHX__VALUE, | |
fd0854ff DM |
1171 | sv->sv_debug_file ? sv->sv_debug_file : "(unknown)", |
1172 | sv->sv_debug_line, | |
1173 | sv->sv_debug_inpad ? "for" : "by", | |
1174 | sv->sv_debug_optype ? | |
1175 | PL_op_name[sv->sv_debug_optype]: "(none)", | |
cd676548 | 1176 | PTR2UV(sv->sv_debug_parent), |
cbe56f1d | 1177 | sv->sv_debug_serial |
fd0854ff | 1178 | ); |
2aa47728 | 1179 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
41e4abd8 | 1180 | Perl_dump_sv_child(aTHX_ sv); |
2aa47728 | 1181 | #endif |
eba0f806 DM |
1182 | } |
1183 | } | |
1184 | } | |
1185 | } | |
2aa47728 NC |
1186 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
1187 | { | |
1188 | int status; | |
1189 | fd_set rset; | |
1190 | /* Wait for up to 4 seconds for child to terminate. | |
1191 | This seems to be the least effort way of timing out on reaping | |
1192 | its exit status. */ | |
1193 | struct timeval waitfor = {4, 0}; | |
41e4abd8 | 1194 | int sock = PL_dumper_fd; |
2aa47728 NC |
1195 | |
1196 | shutdown(sock, 1); | |
1197 | FD_ZERO(&rset); | |
1198 | FD_SET(sock, &rset); | |
1199 | select(sock + 1, &rset, NULL, NULL, &waitfor); | |
1200 | waitpid(child, &status, WNOHANG); | |
1201 | close(sock); | |
1202 | } | |
1203 | #endif | |
eba0f806 | 1204 | #endif |
77abb4c6 NC |
1205 | #ifdef DEBUG_LEAKING_SCALARS_ABORT |
1206 | if (PL_sv_count) | |
1207 | abort(); | |
1208 | #endif | |
bf9cdc68 | 1209 | PL_sv_count = 0; |
eba0f806 | 1210 | |
f1fac472 NC |
1211 | #ifdef PERL_DEBUG_READONLY_OPS |
1212 | free(PL_slabs); | |
1213 | PL_slabs = NULL; | |
1214 | PL_slab_count = 0; | |
1215 | #endif | |
eba0f806 | 1216 | |
56a2bab7 | 1217 | #if defined(PERLIO_LAYERS) |
3a1ee7e8 NIS |
1218 | /* No more IO - including error messages ! */ |
1219 | PerlIO_cleanup(aTHX); | |
1220 | #endif | |
1221 | ||
9f4bd222 | 1222 | /* sv_undef needs to stay immortal until after PerlIO_cleanup |
a0714e2c | 1223 | as currently layers use it rather than NULL as a marker |
9f4bd222 NIS |
1224 | for no arg - and will try and SvREFCNT_dec it. |
1225 | */ | |
1226 | SvREFCNT(&PL_sv_undef) = 0; | |
1227 | SvREADONLY_off(&PL_sv_undef); | |
1228 | ||
3280af22 | 1229 | Safefree(PL_origfilename); |
bd61b366 | 1230 | PL_origfilename = NULL; |
3280af22 | 1231 | Safefree(PL_reg_start_tmp); |
bf9cdc68 RG |
1232 | PL_reg_start_tmp = (char**)NULL; |
1233 | PL_reg_start_tmpl = 0; | |
43c5f42d | 1234 | Safefree(PL_reg_curpm); |
82ba1be6 | 1235 | Safefree(PL_reg_poscache); |
dd28f7bb | 1236 | free_tied_hv_pool(); |
3280af22 | 1237 | Safefree(PL_op_mask); |
cf36064f | 1238 | Safefree(PL_psig_name); |
bf9cdc68 | 1239 | PL_psig_name = (SV**)NULL; |
d525a7b2 | 1240 | PL_psig_ptr = (SV**)NULL; |
31c91b43 LR |
1241 | { |
1242 | /* We need to NULL PL_psig_pend first, so that | |
1243 | signal handlers know not to use it */ | |
1244 | int *psig_save = PL_psig_pend; | |
1245 | PL_psig_pend = (int*)NULL; | |
1246 | Safefree(psig_save); | |
1247 | } | |
a0714e2c | 1248 | PL_formfeed = NULL; |
6e72f9df | 1249 | nuke_stacks(); |
bf9cdc68 RG |
1250 | PL_tainting = FALSE; |
1251 | PL_taint_warn = FALSE; | |
3280af22 | 1252 | PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */ |
bf9cdc68 | 1253 | PL_debug = 0; |
ac27b0f5 | 1254 | |
a0d0e21e | 1255 | DEBUG_P(debprofdump()); |
d33b2eba | 1256 | |
e5dd39fc | 1257 | #ifdef USE_REENTRANT_API |
10bc17b6 | 1258 | Perl_reentrant_free(aTHX); |
e5dd39fc AB |
1259 | #endif |
1260 | ||
612f20c3 GS |
1261 | sv_free_arenas(); |
1262 | ||
5d9a96ca DM |
1263 | while (PL_regmatch_slab) { |
1264 | regmatch_slab *s = PL_regmatch_slab; | |
1265 | PL_regmatch_slab = PL_regmatch_slab->next; | |
1266 | Safefree(s); | |
1267 | } | |
1268 | ||
fc36a67e | 1269 | /* As the absolutely last thing, free the non-arena SV for mess() */ |
1270 | ||
3280af22 | 1271 | if (PL_mess_sv) { |
f350b448 NC |
1272 | /* we know that type == SVt_PVMG */ |
1273 | ||
9c63abab | 1274 | /* it could have accumulated taint magic */ |
f350b448 NC |
1275 | MAGIC* mg; |
1276 | MAGIC* moremagic; | |
1277 | for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) { | |
1278 | moremagic = mg->mg_moremagic; | |
1279 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global | |
1280 | && mg->mg_len >= 0) | |
1281 | Safefree(mg->mg_ptr); | |
1282 | Safefree(mg); | |
9c63abab | 1283 | } |
f350b448 | 1284 | |
fc36a67e | 1285 | /* we know that type >= SVt_PV */ |
8bd4d4c5 | 1286 | SvPV_free(PL_mess_sv); |
3280af22 NIS |
1287 | Safefree(SvANY(PL_mess_sv)); |
1288 | Safefree(PL_mess_sv); | |
a0714e2c | 1289 | PL_mess_sv = NULL; |
fc36a67e | 1290 | } |
37038d91 | 1291 | return STATUS_EXIT; |
79072805 LW |
1292 | } |
1293 | ||
954c1994 GS |
1294 | /* |
1295 | =for apidoc perl_free | |
1296 | ||
1297 | Releases a Perl interpreter. See L<perlembed>. | |
1298 | ||
1299 | =cut | |
1300 | */ | |
1301 | ||
79072805 | 1302 | void |
0cb96387 | 1303 | perl_free(pTHXx) |
79072805 | 1304 | { |
5174512c NC |
1305 | dVAR; |
1306 | ||
7918f24d NC |
1307 | PERL_ARGS_ASSERT_PERL_FREE; |
1308 | ||
c301d606 DM |
1309 | if (PL_veto_cleanup) |
1310 | return; | |
1311 | ||
7cb608b5 | 1312 | #ifdef PERL_TRACK_MEMPOOL |
55ef9aae MHM |
1313 | { |
1314 | /* | |
1315 | * Don't free thread memory if PERL_DESTRUCT_LEVEL is set to a non-zero | |
1316 | * value as we're probably hunting memory leaks then | |
1317 | */ | |
1318 | const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL"); | |
1319 | if (!s || atoi(s) == 0) { | |
4fd0a9b8 | 1320 | const U32 old_debug = PL_debug; |
55ef9aae MHM |
1321 | /* Emulate the PerlHost behaviour of free()ing all memory allocated in this |
1322 | thread at thread exit. */ | |
4fd0a9b8 NC |
1323 | if (DEBUG_m_TEST) { |
1324 | PerlIO_puts(Perl_debug_log, "Disabling memory debugging as we " | |
1325 | "free this thread's memory\n"); | |
1326 | PL_debug &= ~ DEBUG_m_FLAG; | |
1327 | } | |
55ef9aae MHM |
1328 | while(aTHXx->Imemory_debug_header.next != &(aTHXx->Imemory_debug_header)) |
1329 | safesysfree(sTHX + (char *)(aTHXx->Imemory_debug_header.next)); | |
4fd0a9b8 | 1330 | PL_debug = old_debug; |
55ef9aae MHM |
1331 | } |
1332 | } | |
7cb608b5 NC |
1333 | #endif |
1334 | ||
acfe0abc | 1335 | #if defined(WIN32) || defined(NETWARE) |
ce3e5b80 | 1336 | # if defined(PERL_IMPLICIT_SYS) |
b36c9a52 | 1337 | { |
acfe0abc | 1338 | # ifdef NETWARE |
7af12a34 | 1339 | void *host = nw_internal_host; |
acfe0abc | 1340 | # else |
7af12a34 | 1341 | void *host = w32_internal_host; |
acfe0abc | 1342 | # endif |
7af12a34 | 1343 | PerlMem_free(aTHXx); |
acfe0abc | 1344 | # ifdef NETWARE |
7af12a34 | 1345 | nw_delete_internal_host(host); |
acfe0abc | 1346 | # else |
7af12a34 | 1347 | win32_delete_internal_host(host); |
acfe0abc | 1348 | # endif |
7af12a34 | 1349 | } |
1c0ca838 GS |
1350 | # else |
1351 | PerlMem_free(aTHXx); | |
1352 | # endif | |
acfe0abc GS |
1353 | #else |
1354 | PerlMem_free(aTHXx); | |
76e3520e | 1355 | #endif |
79072805 LW |
1356 | } |
1357 | ||
b7f7fff6 | 1358 | #if defined(USE_ITHREADS) |
aebd1ac7 GA |
1359 | /* provide destructors to clean up the thread key when libperl is unloaded */ |
1360 | #ifndef WIN32 /* handled during DLL_PROCESS_DETACH in win32/perllib.c */ | |
1361 | ||
826955bd | 1362 | #if defined(__hpux) && !(defined(__ux_version) && __ux_version <= 1020) && !defined(__GNUC__) |
aebd1ac7 | 1363 | #pragma fini "perl_fini" |
666ad1ec GA |
1364 | #elif defined(__sun) && !defined(__GNUC__) |
1365 | #pragma fini (perl_fini) | |
aebd1ac7 GA |
1366 | #endif |
1367 | ||
0dbb1585 AL |
1368 | static void |
1369 | #if defined(__GNUC__) | |
1370 | __attribute__((destructor)) | |
aebd1ac7 | 1371 | #endif |
de009b76 | 1372 | perl_fini(void) |
aebd1ac7 | 1373 | { |
27da23d5 | 1374 | dVAR; |
c301d606 | 1375 | if (PL_curinterp && !PL_veto_cleanup) |
aebd1ac7 GA |
1376 | FREE_THREAD_KEY; |
1377 | } | |
1378 | ||
1379 | #endif /* WIN32 */ | |
1380 | #endif /* THREADS */ | |
1381 | ||
4b556e6c | 1382 | void |
864dbfa3 | 1383 | Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr) |
4b556e6c | 1384 | { |
97aff369 | 1385 | dVAR; |
3280af22 NIS |
1386 | Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry); |
1387 | PL_exitlist[PL_exitlistlen].fn = fn; | |
1388 | PL_exitlist[PL_exitlistlen].ptr = ptr; | |
1389 | ++PL_exitlistlen; | |
4b556e6c JD |
1390 | } |
1391 | ||
56cf6df8 RGS |
1392 | #ifdef HAS_PROCSELFEXE |
1393 | /* This is a function so that we don't hold on to MAXPATHLEN | |
1394 | bytes of stack longer than necessary | |
1395 | */ | |
1396 | STATIC void | |
e1ec3a88 | 1397 | S_procself_val(pTHX_ SV *sv, const char *arg0) |
56cf6df8 RGS |
1398 | { |
1399 | char buf[MAXPATHLEN]; | |
1400 | int len = readlink(PROCSELFEXE_PATH, buf, sizeof(buf) - 1); | |
1401 | ||
1402 | /* On Playstation2 Linux V1.0 (kernel 2.2.1) readlink(/proc/self/exe) | |
1403 | includes a spurious NUL which will cause $^X to fail in system | |
1404 | or backticks (this will prevent extensions from being built and | |
1405 | many tests from working). readlink is not meant to add a NUL. | |
1406 | Normal readlink works fine. | |
1407 | */ | |
1408 | if (len > 0 && buf[len-1] == '\0') { | |
1409 | len--; | |
1410 | } | |
1411 | ||
1412 | /* FreeBSD's implementation is acknowledged to be imperfect, sometimes | |
1413 | returning the text "unknown" from the readlink rather than the path | |
1414 | to the executable (or returning an error from the readlink). Any valid | |
1415 | path has a '/' in it somewhere, so use that to validate the result. | |
1416 | See http://www.freebsd.org/cgi/query-pr.cgi?pr=35703 | |
1417 | */ | |
1418 | if (len > 0 && memchr(buf, '/', len)) { | |
1419 | sv_setpvn(sv,buf,len); | |
1420 | } | |
1421 | else { | |
1422 | sv_setpv(sv,arg0); | |
1423 | } | |
1424 | } | |
1425 | #endif /* HAS_PROCSELFEXE */ | |
b7975bdd NC |
1426 | |
1427 | STATIC void | |
1428 | S_set_caret_X(pTHX) { | |
97aff369 | 1429 | dVAR; |
fafc274c | 1430 | GV* tmpgv = gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, SVt_PV); /* $^X */ |
b7975bdd NC |
1431 | if (tmpgv) { |
1432 | #ifdef HAS_PROCSELFEXE | |
1433 | S_procself_val(aTHX_ GvSV(tmpgv), PL_origargv[0]); | |
1434 | #else | |
1435 | #ifdef OS2 | |
c69033f2 | 1436 | sv_setpv(GvSVn(tmpgv), os2_execname(aTHX)); |
b7975bdd | 1437 | #else |
c69033f2 | 1438 | sv_setpv(GvSVn(tmpgv),PL_origargv[0]); |
b7975bdd NC |
1439 | #endif |
1440 | #endif | |
1441 | } | |
1442 | } | |
1443 | ||
954c1994 GS |
1444 | /* |
1445 | =for apidoc perl_parse | |
1446 | ||
1447 | Tells a Perl interpreter to parse a Perl script. See L<perlembed>. | |
1448 | ||
1449 | =cut | |
1450 | */ | |
1451 | ||
79072805 | 1452 | int |
0cb96387 | 1453 | perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env) |
8d063cd8 | 1454 | { |
27da23d5 | 1455 | dVAR; |
6224f72b | 1456 | I32 oldscope; |
6224f72b | 1457 | int ret; |
db36c5a1 | 1458 | dJMPENV; |
8d063cd8 | 1459 | |
7918f24d NC |
1460 | PERL_ARGS_ASSERT_PERL_PARSE; |
1461 | #ifndef MULTIPLICITY | |
ed6c66dd | 1462 | PERL_UNUSED_ARG(my_perl); |
7918f24d | 1463 | #endif |
9d4ba2ae | 1464 | |
b0891165 JH |
1465 | #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) |
1466 | /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0 | |
103dd899 | 1467 | * This MUST be done before any hash stores or fetches take place. |
008fb0c0 NC |
1468 | * If you set PL_rehash_seed (and assumedly also PL_rehash_seed_set) |
1469 | * yourself, it is your responsibility to provide a good random seed! | |
830b38bd | 1470 | * You can also define PERL_HASH_SEED in compile time, see hv.h. */ |
008fb0c0 NC |
1471 | if (!PL_rehash_seed_set) |
1472 | PL_rehash_seed = get_hash_seed(); | |
b0891165 | 1473 | { |
9d4ba2ae | 1474 | const char * const s = PerlEnv_getenv("PERL_HASH_SEED_DEBUG"); |
bed60192 | 1475 | |
1b6737cc AL |
1476 | if (s && (atoi(s) == 1)) |
1477 | PerlIO_printf(Perl_debug_log, "HASH_SEED = %"UVuf"\n", PL_rehash_seed); | |
b0891165 JH |
1478 | } |
1479 | #endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */ | |
1480 | ||
3280af22 | 1481 | PL_origargc = argc; |
e2975953 | 1482 | PL_origargv = argv; |
a0d0e21e | 1483 | |
a2722ac9 GA |
1484 | if (PL_origalen != 0) { |
1485 | PL_origalen = 1; /* don't use old PL_origalen if perl_parse() is called again */ | |
1486 | } | |
1487 | else { | |
3cb9023d JH |
1488 | /* Set PL_origalen be the sum of the contiguous argv[] |
1489 | * elements plus the size of the env in case that it is | |
e9137a8e | 1490 | * contiguous with the argv[]. This is used in mg.c:Perl_magic_set() |
3cb9023d JH |
1491 | * as the maximum modifiable length of $0. In the worst case |
1492 | * the area we are able to modify is limited to the size of | |
43c32782 | 1493 | * the original argv[0]. (See below for 'contiguous', though.) |
3cb9023d | 1494 | * --jhi */ |
e1ec3a88 | 1495 | const char *s = NULL; |
54bfe034 | 1496 | int i; |
1b6737cc | 1497 | const UV mask = |
7d8e7db3 | 1498 | ~(UV)(PTRSIZE == 4 ? 3 : PTRSIZE == 8 ? 7 : PTRSIZE == 16 ? 15 : 0); |
43c32782 | 1499 | /* Do the mask check only if the args seem like aligned. */ |
1b6737cc | 1500 | const UV aligned = |
43c32782 JH |
1501 | (mask < ~(UV)0) && ((PTR2UV(argv[0]) & mask) == PTR2UV(argv[0])); |
1502 | ||
1503 | /* See if all the arguments are contiguous in memory. Note | |
1504 | * that 'contiguous' is a loose term because some platforms | |
1505 | * align the argv[] and the envp[]. If the arguments look | |
1506 | * like non-aligned, assume that they are 'strictly' or | |
1507 | * 'traditionally' contiguous. If the arguments look like | |
1508 | * aligned, we just check that they are within aligned | |
1509 | * PTRSIZE bytes. As long as no system has something bizarre | |
1510 | * like the argv[] interleaved with some other data, we are | |
1511 | * fine. (Did I just evoke Murphy's Law?) --jhi */ | |
c8941eeb JH |
1512 | if (PL_origargv && PL_origargc >= 1 && (s = PL_origargv[0])) { |
1513 | while (*s) s++; | |
1514 | for (i = 1; i < PL_origargc; i++) { | |
1515 | if ((PL_origargv[i] == s + 1 | |
43c32782 | 1516 | #ifdef OS2 |
c8941eeb | 1517 | || PL_origargv[i] == s + 2 |
43c32782 | 1518 | #endif |
c8941eeb JH |
1519 | ) |
1520 | || | |
1521 | (aligned && | |
1522 | (PL_origargv[i] > s && | |
1523 | PL_origargv[i] <= | |
1524 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1525 | ) | |
1526 | { | |
1527 | s = PL_origargv[i]; | |
1528 | while (*s) s++; | |
1529 | } | |
1530 | else | |
1531 | break; | |
54bfe034 | 1532 | } |
54bfe034 | 1533 | } |
a4a109c2 JD |
1534 | |
1535 | #ifndef PERL_USE_SAFE_PUTENV | |
3cb9023d | 1536 | /* Can we grab env area too to be used as the area for $0? */ |
a4a109c2 | 1537 | if (s && PL_origenviron && !PL_use_safe_putenv) { |
9d419b5f | 1538 | if ((PL_origenviron[0] == s + 1) |
43c32782 JH |
1539 | || |
1540 | (aligned && | |
1541 | (PL_origenviron[0] > s && | |
1542 | PL_origenviron[0] <= | |
1543 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1544 | ) | |
1545 | { | |
9d419b5f | 1546 | #ifndef OS2 /* ENVIRON is read by the kernel too. */ |
43c32782 JH |
1547 | s = PL_origenviron[0]; |
1548 | while (*s) s++; | |
1549 | #endif | |
bd61b366 | 1550 | my_setenv("NoNe SuCh", NULL); |
43c32782 JH |
1551 | /* Force copy of environment. */ |
1552 | for (i = 1; PL_origenviron[i]; i++) { | |
1553 | if (PL_origenviron[i] == s + 1 | |
1554 | || | |
1555 | (aligned && | |
1556 | (PL_origenviron[i] > s && | |
1557 | PL_origenviron[i] <= | |
1558 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1559 | ) | |
1560 | { | |
1561 | s = PL_origenviron[i]; | |
1562 | while (*s) s++; | |
1563 | } | |
1564 | else | |
1565 | break; | |
54bfe034 | 1566 | } |
43c32782 | 1567 | } |
54bfe034 | 1568 | } |
a4a109c2 JD |
1569 | #endif /* !defined(PERL_USE_SAFE_PUTENV) */ |
1570 | ||
2d2af554 | 1571 | PL_origalen = s ? s - PL_origargv[0] + 1 : 0; |
54bfe034 JH |
1572 | } |
1573 | ||
3280af22 | 1574 | if (PL_do_undump) { |
a0d0e21e LW |
1575 | |
1576 | /* Come here if running an undumped a.out. */ | |
1577 | ||
3280af22 NIS |
1578 | PL_origfilename = savepv(argv[0]); |
1579 | PL_do_undump = FALSE; | |
a0d0e21e | 1580 | cxstack_ix = -1; /* start label stack again */ |
748a9306 | 1581 | init_ids(); |
b7975bdd NC |
1582 | assert (!PL_tainted); |
1583 | TAINT; | |
1584 | S_set_caret_X(aTHX); | |
1585 | TAINT_NOT; | |
a0d0e21e LW |
1586 | init_postdump_symbols(argc,argv,env); |
1587 | return 0; | |
1588 | } | |
1589 | ||
3280af22 | 1590 | if (PL_main_root) { |
3280af22 | 1591 | op_free(PL_main_root); |
5f66b61c | 1592 | PL_main_root = NULL; |
ff0cee69 | 1593 | } |
5f66b61c | 1594 | PL_main_start = NULL; |
3280af22 | 1595 | SvREFCNT_dec(PL_main_cv); |
601f1833 | 1596 | PL_main_cv = NULL; |
79072805 | 1597 | |
3280af22 NIS |
1598 | time(&PL_basetime); |
1599 | oldscope = PL_scopestack_ix; | |
599cee73 | 1600 | PL_dowarn = G_WARN_OFF; |
f86702cc | 1601 | |
14dd3ad8 | 1602 | JMPENV_PUSH(ret); |
6224f72b | 1603 | switch (ret) { |
312caa8e | 1604 | case 0: |
14dd3ad8 | 1605 | parse_body(env,xsinit); |
3c10abe3 AG |
1606 | if (PL_unitcheckav) |
1607 | call_list(oldscope, PL_unitcheckav); | |
7d30b5c4 GS |
1608 | if (PL_checkav) |
1609 | call_list(oldscope, PL_checkav); | |
14dd3ad8 GS |
1610 | ret = 0; |
1611 | break; | |
6224f72b GS |
1612 | case 1: |
1613 | STATUS_ALL_FAILURE; | |
1614 | /* FALL THROUGH */ | |
1615 | case 2: | |
1616 | /* my_exit() was called */ | |
3280af22 | 1617 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
1618 | LEAVE; |
1619 | FREETMPS; | |
3280af22 | 1620 | PL_curstash = PL_defstash; |
3c10abe3 AG |
1621 | if (PL_unitcheckav) |
1622 | call_list(oldscope, PL_unitcheckav); | |
7d30b5c4 GS |
1623 | if (PL_checkav) |
1624 | call_list(oldscope, PL_checkav); | |
37038d91 | 1625 | ret = STATUS_EXIT; |
14dd3ad8 | 1626 | break; |
6224f72b | 1627 | case 3: |
bf49b057 | 1628 | PerlIO_printf(Perl_error_log, "panic: top_env\n"); |
14dd3ad8 GS |
1629 | ret = 1; |
1630 | break; | |
6224f72b | 1631 | } |
14dd3ad8 GS |
1632 | JMPENV_POP; |
1633 | return ret; | |
1634 | } | |
1635 | ||
4a5df386 NC |
1636 | /* This needs to stay in perl.c, as perl.c is compiled with different flags for |
1637 | miniperl, and we need to see those flags reflected in the values here. */ | |
1638 | ||
1639 | /* What this returns is subject to change. Use the public interface in Config. | |
1640 | */ | |
1641 | static void | |
1642 | S_Internals_V(pTHX_ CV *cv) | |
1643 | { | |
1644 | dXSARGS; | |
1645 | #ifdef LOCAL_PATCH_COUNT | |
1646 | const int local_patch_count = LOCAL_PATCH_COUNT; | |
1647 | #else | |
1648 | const int local_patch_count = 0; | |
1649 | #endif | |
2dc296d2 | 1650 | const int entries = 3 + local_patch_count; |
4a5df386 NC |
1651 | int i; |
1652 | static char non_bincompat_options[] = | |
1653 | # ifdef DEBUGGING | |
1654 | " DEBUGGING" | |
1655 | # endif | |
1656 | # ifdef NO_MATHOMS | |
0d311fbe | 1657 | " NO_MATHOMS" |
4a5df386 NC |
1658 | # endif |
1659 | # ifdef PERL_DISABLE_PMC | |
1660 | " PERL_DISABLE_PMC" | |
1661 | # endif | |
1662 | # ifdef PERL_DONT_CREATE_GVSV | |
1663 | " PERL_DONT_CREATE_GVSV" | |
1664 | # endif | |
9a044a43 NC |
1665 | # ifdef PERL_EXTERNAL_GLOB |
1666 | " PERL_EXTERNAL_GLOB" | |
1667 | # endif | |
4a5df386 NC |
1668 | # ifdef PERL_IS_MINIPERL |
1669 | " PERL_IS_MINIPERL" | |
1670 | # endif | |
1671 | # ifdef PERL_MALLOC_WRAP | |
1672 | " PERL_MALLOC_WRAP" | |
1673 | # endif | |
1674 | # ifdef PERL_MEM_LOG | |
1675 | " PERL_MEM_LOG" | |
1676 | # endif | |
1677 | # ifdef PERL_MEM_LOG_NOIMPL | |
1678 | " PERL_MEM_LOG_NOIMPL" | |
1679 | # endif | |
1680 | # ifdef PERL_USE_DEVEL | |
1681 | " PERL_USE_DEVEL" | |
1682 | # endif | |
1683 | # ifdef PERL_USE_SAFE_PUTENV | |
1684 | " PERL_USE_SAFE_PUTENV" | |
1685 | # endif | |
de618ee4 NC |
1686 | # ifdef USE_ATTRIBUTES_FOR_PERLIO |
1687 | " USE_ATTRIBUTES_FOR_PERLIO" | |
1688 | # endif | |
4a5df386 NC |
1689 | # ifdef USE_FAST_STDIO |
1690 | " USE_FAST_STDIO" | |
1691 | # endif | |
5a8d8935 NC |
1692 | # ifdef USE_PERL_ATOF |
1693 | " USE_PERL_ATOF" | |
1694 | # endif | |
0d311fbe NC |
1695 | # ifdef USE_SITECUSTOMIZE |
1696 | " USE_SITECUSTOMIZE" | |
1697 | # endif | |
4a5df386 NC |
1698 | ; |
1699 | PERL_UNUSED_ARG(cv); | |
1700 | PERL_UNUSED_ARG(items); | |
1701 | ||
1702 | EXTEND(SP, entries); | |
1703 | ||
1704 | PUSHs(sv_2mortal(newSVpv(PL_bincompat_options, 0))); | |
1705 | PUSHs(Perl_newSVpvn_flags(aTHX_ non_bincompat_options, | |
1706 | sizeof(non_bincompat_options) - 1, SVs_TEMP)); | |
1707 | ||
1708 | #ifdef __DATE__ | |
1709 | # ifdef __TIME__ | |
1710 | PUSHs(Perl_newSVpvn_flags(aTHX_ | |
1711 | STR_WITH_LEN("Compiled at " __DATE__ " " __TIME__), | |
1712 | SVs_TEMP)); | |
1713 | # else | |
1714 | PUSHs(Perl_newSVpvn_flags(aTHX_ STR_WITH_LEN("Compiled on " __DATE__), | |
1715 | SVs_TEMP)); | |
1716 | # endif | |
1717 | #else | |
1718 | PUSHs(&PL_sv_undef); | |
1719 | #endif | |
1720 | ||
4a5df386 NC |
1721 | for (i = 1; i <= local_patch_count; i++) { |
1722 | /* This will be an undef, if PL_localpatches[i] is NULL. */ | |
1723 | PUSHs(sv_2mortal(newSVpv(PL_localpatches[i], 0))); | |
1724 | } | |
1725 | ||
1726 | XSRETURN(entries); | |
1727 | } | |
1728 | ||
be71fc8f NC |
1729 | #define INCPUSH_UNSHIFT 0x01 |
1730 | #define INCPUSH_ADD_OLD_VERS 0x02 | |
1731 | #define INCPUSH_ADD_VERSIONED_SUB_DIRS 0x04 | |
1732 | #define INCPUSH_ADD_ARCHONLY_SUB_DIRS 0x08 | |
1733 | #define INCPUSH_NOT_BASEDIR 0x10 | |
1734 | #define INCPUSH_CAN_RELOCATE 0x20 | |
1e3208d8 NC |
1735 | #define INCPUSH_ADD_SUB_DIRS \ |
1736 | (INCPUSH_ADD_VERSIONED_SUB_DIRS|INCPUSH_ADD_ARCHONLY_SUB_DIRS) | |
e28f3139 | 1737 | |
312caa8e | 1738 | STATIC void * |
14dd3ad8 | 1739 | S_parse_body(pTHX_ char **env, XSINIT_t xsinit) |
312caa8e | 1740 | { |
27da23d5 | 1741 | dVAR; |
2f9285f8 | 1742 | PerlIO *rsfp; |
312caa8e | 1743 | int argc = PL_origargc; |
8f42b153 | 1744 | char **argv = PL_origargv; |
e1ec3a88 | 1745 | const char *scriptname = NULL; |
312caa8e | 1746 | VOL bool dosearch = FALSE; |
c7030b81 | 1747 | register char c; |
737c24fc | 1748 | bool doextract = FALSE; |
bd61b366 | 1749 | const char *cddir = NULL; |
ab019eaa | 1750 | #ifdef USE_SITECUSTOMIZE |
20ef40cf | 1751 | bool minus_f = FALSE; |
ab019eaa | 1752 | #endif |
009d90df | 1753 | SV *linestr_sv = newSV_type(SVt_PVIV); |
5486870f | 1754 | bool add_read_e_script = FALSE; |
009d90df DM |
1755 | |
1756 | SvGROW(linestr_sv, 80); | |
76f68e9b | 1757 | sv_setpvs(linestr_sv,""); |
312caa8e | 1758 | |
6224f72b | 1759 | init_main_stash(); |
54310121 | 1760 | |
c7030b81 NC |
1761 | { |
1762 | const char *s; | |
6224f72b GS |
1763 | for (argc--,argv++; argc > 0; argc--,argv++) { |
1764 | if (argv[0][0] != '-' || !argv[0][1]) | |
1765 | break; | |
6224f72b GS |
1766 | s = argv[0]+1; |
1767 | reswitch: | |
47f56822 | 1768 | switch ((c = *s)) { |
729a02f2 | 1769 | case 'C': |
1d5472a9 GS |
1770 | #ifndef PERL_STRICT_CR |
1771 | case '\r': | |
1772 | #endif | |
6224f72b GS |
1773 | case ' ': |
1774 | case '0': | |
1775 | case 'F': | |
1776 | case 'a': | |
1777 | case 'c': | |
1778 | case 'd': | |
1779 | case 'D': | |
1780 | case 'h': | |
1781 | case 'i': | |
1782 | case 'l': | |
1783 | case 'M': | |
1784 | case 'm': | |
1785 | case 'n': | |
1786 | case 'p': | |
1787 | case 's': | |
1788 | case 'u': | |
1789 | case 'U': | |
1790 | case 'v': | |
599cee73 PM |
1791 | case 'W': |
1792 | case 'X': | |
6224f72b | 1793 | case 'w': |
97bd5664 | 1794 | if ((s = moreswitches(s))) |
6224f72b GS |
1795 | goto reswitch; |
1796 | break; | |
33b78306 | 1797 | |
1dbad523 | 1798 | case 't': |
22f7c9c9 | 1799 | CHECK_MALLOC_TOO_LATE_FOR('t'); |
317ea90d MS |
1800 | if( !PL_tainting ) { |
1801 | PL_taint_warn = TRUE; | |
1802 | PL_tainting = TRUE; | |
1803 | } | |
1804 | s++; | |
1805 | goto reswitch; | |
6224f72b | 1806 | case 'T': |
22f7c9c9 | 1807 | CHECK_MALLOC_TOO_LATE_FOR('T'); |
3280af22 | 1808 | PL_tainting = TRUE; |
317ea90d | 1809 | PL_taint_warn = FALSE; |
6224f72b GS |
1810 | s++; |
1811 | goto reswitch; | |
f86702cc | 1812 | |
bc9b29db RH |
1813 | case 'E': |
1814 | PL_minus_E = TRUE; | |
1815 | /* FALL THROUGH */ | |
6224f72b | 1816 | case 'e': |
f20b2998 | 1817 | forbid_setid('e', FALSE); |
3280af22 | 1818 | if (!PL_e_script) { |
396482e1 | 1819 | PL_e_script = newSVpvs(""); |
5486870f | 1820 | add_read_e_script = TRUE; |
6224f72b GS |
1821 | } |
1822 | if (*++s) | |
3280af22 | 1823 | sv_catpv(PL_e_script, s); |
6224f72b | 1824 | else if (argv[1]) { |
3280af22 | 1825 | sv_catpv(PL_e_script, argv[1]); |
6224f72b GS |
1826 | argc--,argv++; |
1827 | } | |
1828 | else | |
47f56822 | 1829 | Perl_croak(aTHX_ "No code specified for -%c", c); |
396482e1 | 1830 | sv_catpvs(PL_e_script, "\n"); |
6224f72b | 1831 | break; |
afe37c7d | 1832 | |
20ef40cf | 1833 | case 'f': |
f5542d3a | 1834 | #ifdef USE_SITECUSTOMIZE |
20ef40cf | 1835 | minus_f = TRUE; |
f5542d3a | 1836 | #endif |
20ef40cf GA |
1837 | s++; |
1838 | goto reswitch; | |
1839 | ||
6224f72b | 1840 | case 'I': /* -I handled both here and in moreswitches() */ |
f20b2998 | 1841 | forbid_setid('I', FALSE); |
bd61b366 | 1842 | if (!*++s && (s=argv[1]) != NULL) { |
6224f72b GS |
1843 | argc--,argv++; |
1844 | } | |
6224f72b | 1845 | if (s && *s) { |
0df16ed7 | 1846 | STRLEN len = strlen(s); |
55b4bc1c | 1847 | incpush(s, len, INCPUSH_ADD_SUB_DIRS|INCPUSH_ADD_OLD_VERS); |
0df16ed7 GS |
1848 | } |
1849 | else | |
a67e862a | 1850 | Perl_croak(aTHX_ "No directory specified for -I"); |
6224f72b | 1851 | break; |
6224f72b | 1852 | case 'S': |
f20b2998 | 1853 | forbid_setid('S', FALSE); |
6224f72b GS |
1854 | dosearch = TRUE; |
1855 | s++; | |
1856 | goto reswitch; | |
1857 | case 'V': | |
7edfd0ef NC |
1858 | { |
1859 | SV *opts_prog; | |
1860 | ||
7edfd0ef | 1861 | if (*++s != ':') { |
37ca4a5b | 1862 | opts_prog = newSVpvs("use Config; Config::_V()"); |
7edfd0ef NC |
1863 | } |
1864 | else { | |
1865 | ++s; | |
1866 | opts_prog = Perl_newSVpvf(aTHX_ | |
37ca4a5b | 1867 | "use Config; Config::config_vars(qw%c%s%c)", |
7edfd0ef NC |
1868 | 0, s, 0); |
1869 | s += strlen(s); | |
1870 | } | |
37ca4a5b | 1871 | Perl_av_create_and_push(aTHX_ &PL_preambleav, opts_prog); |
7edfd0ef NC |
1872 | /* don't look for script or read stdin */ |
1873 | scriptname = BIT_BUCKET; | |
1874 | goto reswitch; | |
6224f72b | 1875 | } |
6224f72b | 1876 | case 'x': |
737c24fc | 1877 | doextract = TRUE; |
6224f72b | 1878 | s++; |
304334da | 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 | } | |
c7030b81 NC |
1904 | } |
1905 | ||
6224f72b | 1906 | switch_end: |
54310121 | 1907 | |
c7030b81 NC |
1908 | { |
1909 | char *s; | |
1910 | ||
f675dbe5 CB |
1911 | if ( |
1912 | #ifndef SECURE_INTERNAL_GETENV | |
1913 | !PL_tainting && | |
1914 | #endif | |
cf756827 | 1915 | (s = PerlEnv_getenv("PERL5OPT"))) |
0df16ed7 | 1916 | { |
74288ac8 GS |
1917 | while (isSPACE(*s)) |
1918 | s++; | |
317ea90d | 1919 | if (*s == '-' && *(s+1) == 'T') { |
22f7c9c9 | 1920 | CHECK_MALLOC_TOO_LATE_FOR('T'); |
74288ac8 | 1921 | PL_tainting = TRUE; |
317ea90d MS |
1922 | PL_taint_warn = FALSE; |
1923 | } | |
74288ac8 | 1924 | else { |
bd61b366 | 1925 | char *popt_copy = NULL; |
74288ac8 | 1926 | while (s && *s) { |
54913509 | 1927 | const char *d; |
74288ac8 GS |
1928 | while (isSPACE(*s)) |
1929 | s++; | |
1930 | if (*s == '-') { | |
1931 | s++; | |
1932 | if (isSPACE(*s)) | |
1933 | continue; | |
1934 | } | |
4ea8f8fb | 1935 | d = s; |
74288ac8 GS |
1936 | if (!*s) |
1937 | break; | |
2b622f1a | 1938 | if (!strchr("CDIMUdmtwW", *s)) |
cea2e8a9 | 1939 | Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s); |
4ea8f8fb MS |
1940 | while (++s && *s) { |
1941 | if (isSPACE(*s)) { | |
cf756827 | 1942 | if (!popt_copy) { |
bfa6c418 NC |
1943 | popt_copy = SvPVX(sv_2mortal(newSVpv(d,0))); |
1944 | s = popt_copy + (s - d); | |
1945 | d = popt_copy; | |
cf756827 | 1946 | } |
4ea8f8fb MS |
1947 | *s++ = '\0'; |
1948 | break; | |
1949 | } | |
1950 | } | |
1c4db469 | 1951 | if (*d == 't') { |
317ea90d MS |
1952 | if( !PL_tainting ) { |
1953 | PL_taint_warn = TRUE; | |
1954 | PL_tainting = TRUE; | |
1955 | } | |
1c4db469 | 1956 | } else { |
97bd5664 | 1957 | moreswitches(d); |
1c4db469 | 1958 | } |
6224f72b | 1959 | } |
6224f72b GS |
1960 | } |
1961 | } | |
c7030b81 | 1962 | } |
a0d0e21e | 1963 | |
87e06404 | 1964 | #if defined(USE_SITECUSTOMIZE) && !defined(PERL_IS_MINIPERL) |
20ef40cf | 1965 | if (!minus_f) { |
404ad9dc NC |
1966 | /* SITELIB_EXP is a function call on Win32. |
1967 | The games with local $! are to avoid setting errno if there is no | |
1968 | sitecustomize script. */ | |
1969 | const char *const sitelib = SITELIB_EXP; | |
29a861e7 | 1970 | (void)Perl_av_create_and_unshift_one(aTHX_ &PL_preambleav, |
404ad9dc NC |
1971 | Perl_newSVpvf(aTHX_ |
1972 | "BEGIN { do {local $!; -f '%s/sitecustomize.pl'} && do '%s/sitecustomize.pl' }", sitelib, sitelib)); | |
20ef40cf GA |
1973 | } |
1974 | #endif | |
1975 | ||
6224f72b GS |
1976 | if (!scriptname) |
1977 | scriptname = argv[0]; | |
3280af22 | 1978 | if (PL_e_script) { |
6224f72b GS |
1979 | argc++,argv--; |
1980 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ | |
1981 | } | |
bd61b366 | 1982 | else if (scriptname == NULL) { |
6224f72b GS |
1983 | #ifdef MSDOS |
1984 | if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) ) | |
97bd5664 | 1985 | moreswitches("h"); |
6224f72b GS |
1986 | #endif |
1987 | scriptname = "-"; | |
1988 | } | |
1989 | ||
b7975bdd NC |
1990 | /* Set $^X early so that it can be used for relocatable paths in @INC */ |
1991 | assert (!PL_tainted); | |
1992 | TAINT; | |
1993 | S_set_caret_X(aTHX); | |
1994 | TAINT_NOT; | |
2cace6ac | 1995 | init_perllib(); |
6224f72b | 1996 | |
a52eba0e | 1997 | { |
f20b2998 | 1998 | bool suidscript = FALSE; |
829372d3 | 1999 | |
cc69b689 | 2000 | open_script(scriptname, dosearch, &suidscript, &rsfp); |
6224f72b | 2001 | |
2f9285f8 | 2002 | validate_suid(validarg, scriptname, fdscript, suidscript, |
cc69b689 | 2003 | linestr_sv, rsfp); |
6224f72b | 2004 | |
64ca3a65 | 2005 | #ifndef PERL_MICRO |
a52eba0e NC |
2006 | # if defined(SIGCHLD) || defined(SIGCLD) |
2007 | { | |
2008 | # ifndef SIGCHLD | |
2009 | # define SIGCHLD SIGCLD | |
2010 | # endif | |
2011 | Sighandler_t sigstate = rsignal_state(SIGCHLD); | |
2012 | if (sigstate == (Sighandler_t) SIG_IGN) { | |
a2a5de95 NC |
2013 | Perl_ck_warner(aTHX_ packWARN(WARN_SIGNAL), |
2014 | "Can't ignore signal CHLD, forcing to default"); | |
a52eba0e NC |
2015 | (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL); |
2016 | } | |
0b5b802d | 2017 | } |
a52eba0e | 2018 | # endif |
64ca3a65 | 2019 | #endif |
0b5b802d | 2020 | |
737c24fc | 2021 | if (doextract) { |
faef540c | 2022 | |
f20b2998 | 2023 | /* This will croak if suidscript is true, as -x cannot be used with |
faef540c NC |
2024 | setuid scripts. */ |
2025 | forbid_setid('x', suidscript); | |
f20b2998 | 2026 | /* Hence you can't get here if suidscript is true */ |
faef540c | 2027 | |
2f9285f8 | 2028 | find_beginning(linestr_sv, rsfp); |
a52eba0e NC |
2029 | if (cddir && PerlDir_chdir( (char *)cddir ) < 0) |
2030 | Perl_croak(aTHX_ "Can't chdir to %s",cddir); | |
2031 | } | |
f4c556ac | 2032 | } |
6224f72b | 2033 | |
ea726b52 | 2034 | PL_main_cv = PL_compcv = MUTABLE_CV(newSV_type(SVt_PVCV)); |
3280af22 NIS |
2035 | CvUNIQUE_on(PL_compcv); |
2036 | ||
dd2155a4 | 2037 | CvPADLIST(PL_compcv) = pad_new(0); |
6224f72b | 2038 | |
dd69841b BB |
2039 | PL_isarev = newHV(); |
2040 | ||
0c4f7ff0 | 2041 | boot_core_PerlIO(); |
6224f72b | 2042 | boot_core_UNIVERSAL(); |
e1a479c5 | 2043 | boot_core_mro(); |
4a5df386 | 2044 | newXS("Internals::V", S_Internals_V, __FILE__); |
6224f72b GS |
2045 | |
2046 | if (xsinit) | |
acfe0abc | 2047 | (*xsinit)(aTHX); /* in case linked C routines want magical variables */ |
64ca3a65 | 2048 | #ifndef PERL_MICRO |
d0d72822 | 2049 | #if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(EPOC) || defined(SYMBIAN) |
c5be433b | 2050 | init_os_extras(); |
6224f72b | 2051 | #endif |
64ca3a65 | 2052 | #endif |
6224f72b | 2053 | |
29209bc5 | 2054 | #ifdef USE_SOCKS |
1b9c9cf5 DH |
2055 | # ifdef HAS_SOCKS5_INIT |
2056 | socks5_init(argv[0]); | |
2057 | # else | |
29209bc5 | 2058 | SOCKSinit(argv[0]); |
1b9c9cf5 | 2059 | # endif |
ac27b0f5 | 2060 | #endif |
29209bc5 | 2061 | |
6224f72b GS |
2062 | init_predump_symbols(); |
2063 | /* init_postdump_symbols not currently designed to be called */ | |
2064 | /* more than once (ENV isn't cleared first, for example) */ | |
2065 | /* But running with -u leaves %ENV & @ARGV undefined! XXX */ | |
3280af22 | 2066 | if (!PL_do_undump) |
6224f72b GS |
2067 | init_postdump_symbols(argc,argv,env); |
2068 | ||
27da23d5 JH |
2069 | /* PL_unicode is turned on by -C, or by $ENV{PERL_UNICODE}, |
2070 | * or explicitly in some platforms. | |
085a54d9 | 2071 | * locale.c:Perl_init_i18nl10n() if the environment |
a05d7ebb | 2072 | * look like the user wants to use UTF-8. */ |
a0fd4948 | 2073 | #if defined(__SYMBIAN32__) |
27da23d5 JH |
2074 | PL_unicode = PERL_UNICODE_STD_FLAG; /* See PERL_SYMBIAN_CONSOLE_UTF8. */ |
2075 | #endif | |
e27b5b51 | 2076 | # ifndef PERL_IS_MINIPERL |
06e66572 JH |
2077 | if (PL_unicode) { |
2078 | /* Requires init_predump_symbols(). */ | |
a05d7ebb | 2079 | if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) { |
06e66572 JH |
2080 | IO* io; |
2081 | PerlIO* fp; | |
2082 | SV* sv; | |
2083 | ||
a05d7ebb | 2084 | /* Turn on UTF-8-ness on STDIN, STDOUT, STDERR |
06e66572 | 2085 | * and the default open disciplines. */ |
a05d7ebb JH |
2086 | if ((PL_unicode & PERL_UNICODE_STDIN_FLAG) && |
2087 | PL_stdingv && (io = GvIO(PL_stdingv)) && | |
2088 | (fp = IoIFP(io))) | |
2089 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2090 | if ((PL_unicode & PERL_UNICODE_STDOUT_FLAG) && | |
2091 | PL_defoutgv && (io = GvIO(PL_defoutgv)) && | |
2092 | (fp = IoOFP(io))) | |
2093 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2094 | if ((PL_unicode & PERL_UNICODE_STDERR_FLAG) && | |
2095 | PL_stderrgv && (io = GvIO(PL_stderrgv)) && | |
2096 | (fp = IoOFP(io))) | |
2097 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2098 | if ((PL_unicode & PERL_UNICODE_INOUT_FLAG) && | |
fafc274c NC |
2099 | (sv = GvSV(gv_fetchpvs("\017PEN", GV_ADD|GV_NOTQUAL, |
2100 | SVt_PV)))) { | |
a05d7ebb JH |
2101 | U32 in = PL_unicode & PERL_UNICODE_IN_FLAG; |
2102 | U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG; | |
2103 | if (in) { | |
2104 | if (out) | |
76f68e9b | 2105 | sv_setpvs(sv, ":utf8\0:utf8"); |
a05d7ebb | 2106 | else |
76f68e9b | 2107 | sv_setpvs(sv, ":utf8\0"); |
a05d7ebb JH |
2108 | } |
2109 | else if (out) | |
76f68e9b | 2110 | sv_setpvs(sv, "\0:utf8"); |
a05d7ebb JH |
2111 | SvSETMAGIC(sv); |
2112 | } | |
b310b053 JH |
2113 | } |
2114 | } | |
e27b5b51 | 2115 | #endif |
b310b053 | 2116 | |
c7030b81 NC |
2117 | { |
2118 | const char *s; | |
4ffa73a3 JH |
2119 | if ((s = PerlEnv_getenv("PERL_SIGNALS"))) { |
2120 | if (strEQ(s, "unsafe")) | |
2121 | PL_signals |= PERL_SIGNALS_UNSAFE_FLAG; | |
2122 | else if (strEQ(s, "safe")) | |
2123 | PL_signals &= ~PERL_SIGNALS_UNSAFE_FLAG; | |
2124 | else | |
2125 | Perl_croak(aTHX_ "PERL_SIGNALS illegal: \"%s\"", s); | |
2126 | } | |
c7030b81 | 2127 | } |
4ffa73a3 | 2128 | |
81d86705 | 2129 | #ifdef PERL_MAD |
c7030b81 NC |
2130 | { |
2131 | const char *s; | |
81d86705 NC |
2132 | if ((s = PerlEnv_getenv("PERL_XMLDUMP"))) { |
2133 | PL_madskills = 1; | |
2134 | PL_minus_c = 1; | |
2135 | if (!s || !s[0]) | |
2136 | PL_xmlfp = PerlIO_stdout(); | |
2137 | else { | |
2138 | PL_xmlfp = PerlIO_open(s, "w"); | |
2139 | if (!PL_xmlfp) | |
2140 | Perl_croak(aTHX_ "Can't open %s", s); | |
2141 | } | |
1a9a51d4 | 2142 | my_setenv("PERL_XMLDUMP", NULL); /* hide from subprocs */ |
81d86705 | 2143 | } |
c7030b81 NC |
2144 | } |
2145 | ||
2146 | { | |
2147 | const char *s; | |
81d86705 NC |
2148 | if ((s = PerlEnv_getenv("PERL_MADSKILLS"))) { |
2149 | PL_madskills = atoi(s); | |
1a9a51d4 | 2150 | my_setenv("PERL_MADSKILLS", NULL); /* hide from subprocs */ |
81d86705 | 2151 | } |
c7030b81 | 2152 | } |
81d86705 NC |
2153 | #endif |
2154 | ||
8eaa0acf | 2155 | lex_start(linestr_sv, rsfp, 0); |
219f7226 | 2156 | PL_subname = newSVpvs("main"); |
6224f72b | 2157 | |
5486870f DM |
2158 | if (add_read_e_script) |
2159 | filter_add(read_e_script, NULL); | |
2160 | ||
6224f72b GS |
2161 | /* now parse the script */ |
2162 | ||
93189314 | 2163 | SETERRNO(0,SS_NORMAL); |
28ac2b49 | 2164 | if (yyparse(GRAMPROG) || PL_parser->error_count) { |
3280af22 | 2165 | if (PL_minus_c) |
cea2e8a9 | 2166 | Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename); |
6224f72b | 2167 | else { |
cea2e8a9 | 2168 | Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", |
097ee67d | 2169 | PL_origfilename); |
6224f72b GS |
2170 | } |
2171 | } | |
57843af0 | 2172 | CopLINE_set(PL_curcop, 0); |
3280af22 | 2173 | PL_curstash = PL_defstash; |
3280af22 NIS |
2174 | if (PL_e_script) { |
2175 | SvREFCNT_dec(PL_e_script); | |
a0714e2c | 2176 | PL_e_script = NULL; |
6224f72b GS |
2177 | } |
2178 | ||
3280af22 | 2179 | if (PL_do_undump) |
6224f72b GS |
2180 | my_unexec(); |
2181 | ||
57843af0 GS |
2182 | if (isWARN_ONCE) { |
2183 | SAVECOPFILE(PL_curcop); | |
2184 | SAVECOPLINE(PL_curcop); | |
3280af22 | 2185 | gv_check(PL_defstash); |
57843af0 | 2186 | } |
6224f72b GS |
2187 | |
2188 | LEAVE; | |
2189 | FREETMPS; | |
2190 | ||
2191 | #ifdef MYMALLOC | |
f6a607bc RGS |
2192 | { |
2193 | const char *s; | |
6224f72b GS |
2194 | if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) |
2195 | dump_mstats("after compilation:"); | |
f6a607bc | 2196 | } |
6224f72b GS |
2197 | #endif |
2198 | ||
2199 | ENTER; | |
febb3a6d | 2200 | PL_restartjmpenv = NULL; |
3280af22 | 2201 | PL_restartop = 0; |
312caa8e | 2202 | return NULL; |
6224f72b GS |
2203 | } |
2204 | ||
954c1994 GS |
2205 | /* |
2206 | =for apidoc perl_run | |
2207 | ||
2208 | Tells a Perl interpreter to run. See L<perlembed>. | |
2209 | ||
2210 | =cut | |
2211 | */ | |
2212 | ||
6224f72b | 2213 | int |
0cb96387 | 2214 | perl_run(pTHXx) |
6224f72b | 2215 | { |
97aff369 | 2216 | dVAR; |
6224f72b | 2217 | I32 oldscope; |
14dd3ad8 | 2218 | int ret = 0; |
db36c5a1 | 2219 | dJMPENV; |
6224f72b | 2220 | |
7918f24d NC |
2221 | PERL_ARGS_ASSERT_PERL_RUN; |
2222 | #ifndef MULTIPLICITY | |
ed6c66dd | 2223 | PERL_UNUSED_ARG(my_perl); |
7918f24d | 2224 | #endif |
9d4ba2ae | 2225 | |
3280af22 | 2226 | oldscope = PL_scopestack_ix; |
96e176bf CL |
2227 | #ifdef VMS |
2228 | VMSISH_HUSHED = 0; | |
2229 | #endif | |
6224f72b | 2230 | |
14dd3ad8 | 2231 | JMPENV_PUSH(ret); |
6224f72b GS |
2232 | switch (ret) { |
2233 | case 1: | |
2234 | cxstack_ix = -1; /* start context stack again */ | |
312caa8e | 2235 | goto redo_body; |
14dd3ad8 | 2236 | case 0: /* normal completion */ |
14dd3ad8 GS |
2237 | redo_body: |
2238 | run_body(oldscope); | |
14dd3ad8 GS |
2239 | /* FALL THROUGH */ |
2240 | case 2: /* my_exit() */ | |
3280af22 | 2241 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
2242 | LEAVE; |
2243 | FREETMPS; | |
3280af22 | 2244 | PL_curstash = PL_defstash; |
3a1ee7e8 | 2245 | if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) && |
31d77e54 AB |
2246 | PL_endav && !PL_minus_c) |
2247 | call_list(oldscope, PL_endav); | |
6224f72b GS |
2248 | #ifdef MYMALLOC |
2249 | if (PerlEnv_getenv("PERL_DEBUG_MSTATS")) | |
2250 | dump_mstats("after execution: "); | |
2251 | #endif | |
37038d91 | 2252 | ret = STATUS_EXIT; |
14dd3ad8 | 2253 | break; |
6224f72b | 2254 | case 3: |
312caa8e CS |
2255 | if (PL_restartop) { |
2256 | POPSTACK_TO(PL_mainstack); | |
2257 | goto redo_body; | |
6224f72b | 2258 | } |
bf49b057 | 2259 | PerlIO_printf(Perl_error_log, "panic: restartop\n"); |
312caa8e | 2260 | FREETMPS; |
14dd3ad8 GS |
2261 | ret = 1; |
2262 | break; | |
6224f72b GS |
2263 | } |
2264 | ||
14dd3ad8 GS |
2265 | JMPENV_POP; |
2266 | return ret; | |
312caa8e CS |
2267 | } |
2268 | ||
dd374669 | 2269 | STATIC void |
14dd3ad8 GS |
2270 | S_run_body(pTHX_ I32 oldscope) |
2271 | { | |
97aff369 | 2272 | dVAR; |
6224f72b | 2273 | DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n", |
3280af22 | 2274 | PL_sawampersand ? "Enabling" : "Omitting")); |
6224f72b | 2275 | |
3280af22 | 2276 | if (!PL_restartop) { |
81d86705 NC |
2277 | #ifdef PERL_MAD |
2278 | if (PL_xmlfp) { | |
2279 | xmldump_all(); | |
2280 | exit(0); /* less likely to core dump than my_exit(0) */ | |
2281 | } | |
2282 | #endif | |
cf2782cd | 2283 | #ifdef DEBUGGING |
f0e3f042 CS |
2284 | if (DEBUG_x_TEST || DEBUG_B_TEST) |
2285 | dump_all_perl(!DEBUG_B_TEST); | |
ecae49c0 NC |
2286 | if (!DEBUG_q_TEST) |
2287 | PERL_DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); | |
cf2782cd | 2288 | #endif |
6224f72b | 2289 | |
3280af22 | 2290 | if (PL_minus_c) { |
bf49b057 | 2291 | PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename); |
6224f72b GS |
2292 | my_exit(0); |
2293 | } | |
3280af22 | 2294 | if (PERLDB_SINGLE && PL_DBsingle) |
ac27b0f5 | 2295 | sv_setiv(PL_DBsingle, 1); |
3280af22 NIS |
2296 | if (PL_initav) |
2297 | call_list(oldscope, PL_initav); | |
f1fac472 NC |
2298 | #ifdef PERL_DEBUG_READONLY_OPS |
2299 | Perl_pending_Slabs_to_ro(aTHX); | |
2300 | #endif | |
6224f72b GS |
2301 | } |
2302 | ||
2303 | /* do it */ | |
2304 | ||
3280af22 | 2305 | if (PL_restartop) { |
febb3a6d | 2306 | PL_restartjmpenv = NULL; |
533c011a | 2307 | PL_op = PL_restartop; |
3280af22 | 2308 | PL_restartop = 0; |
cea2e8a9 | 2309 | CALLRUNOPS(aTHX); |
6224f72b | 2310 | } |
3280af22 NIS |
2311 | else if (PL_main_start) { |
2312 | CvDEPTH(PL_main_cv) = 1; | |
533c011a | 2313 | PL_op = PL_main_start; |
cea2e8a9 | 2314 | CALLRUNOPS(aTHX); |
6224f72b | 2315 | } |
f6b3007c JH |
2316 | my_exit(0); |
2317 | /* NOTREACHED */ | |
6224f72b GS |
2318 | } |
2319 | ||
954c1994 | 2320 | /* |
ccfc67b7 JH |
2321 | =head1 SV Manipulation Functions |
2322 | ||
954c1994 GS |
2323 | =for apidoc p||get_sv |
2324 | ||
64ace3f8 NC |
2325 | Returns the SV of the specified Perl scalar. C<flags> are passed to |
2326 | C<gv_fetchpv>. If C<GV_ADD> is set and the | |
2327 | Perl variable does not exist then it will be created. If C<flags> is zero | |
2328 | and the variable does not exist then NULL is returned. | |
954c1994 GS |
2329 | |
2330 | =cut | |
2331 | */ | |
2332 | ||
6224f72b | 2333 | SV* |
64ace3f8 | 2334 | Perl_get_sv(pTHX_ const char *name, I32 flags) |
6224f72b GS |
2335 | { |
2336 | GV *gv; | |
7918f24d NC |
2337 | |
2338 | PERL_ARGS_ASSERT_GET_SV; | |
2339 | ||
64ace3f8 | 2340 | gv = gv_fetchpv(name, flags, SVt_PV); |
6224f72b GS |
2341 | if (gv) |
2342 | return GvSV(gv); | |
a0714e2c | 2343 | return NULL; |
6224f72b GS |
2344 | } |
2345 | ||
954c1994 | 2346 | /* |
ccfc67b7 JH |
2347 | =head1 Array Manipulation Functions |
2348 | ||
954c1994 GS |
2349 | =for apidoc p||get_av |
2350 | ||
cbfd0a87 NC |
2351 | Returns the AV of the specified Perl array. C<flags> are passed to |
2352 | C<gv_fetchpv>. If C<GV_ADD> is set and the | |
2353 | Perl variable does not exist then it will be created. If C<flags> is zero | |
2354 | and the variable does not exist then NULL is returned. | |
954c1994 GS |
2355 | |
2356 | =cut | |
2357 | */ | |
2358 | ||
6224f72b | 2359 | AV* |
cbfd0a87 | 2360 | Perl_get_av(pTHX_ const char *name, I32 flags) |
6224f72b | 2361 | { |
cbfd0a87 | 2362 | GV* const gv = gv_fetchpv(name, flags, SVt_PVAV); |
7918f24d NC |
2363 | |
2364 | PERL_ARGS_ASSERT_GET_AV; | |
2365 | ||
cbfd0a87 | 2366 | if (flags) |
6224f72b GS |
2367 | return GvAVn(gv); |
2368 | if (gv) | |
2369 | return GvAV(gv); | |
7d49f689 | 2370 | return NULL; |
6224f72b GS |
2371 | } |
2372 | ||
954c1994 | 2373 | /* |
ccfc67b7 JH |
2374 | =head1 Hash Manipulation Functions |
2375 | ||
954c1994 GS |
2376 | =for apidoc p||get_hv |
2377 | ||
6673a63c NC |
2378 | Returns the HV of the specified Perl hash. C<flags> are passed to |
2379 | C<gv_fetchpv>. If C<GV_ADD> is set and the | |
2380 | Perl variable does not exist then it will be created. If C<flags> is zero | |
2381 | and the variable does not exist then NULL is returned. | |
954c1994 GS |
2382 | |
2383 | =cut | |
2384 | */ | |
2385 | ||
6224f72b | 2386 | HV* |
6673a63c | 2387 | Perl_get_hv(pTHX_ const char *name, I32 flags) |
6224f72b | 2388 | { |
6673a63c | 2389 | GV* const gv = gv_fetchpv(name, flags, SVt_PVHV); |
7918f24d NC |
2390 | |
2391 | PERL_ARGS_ASSERT_GET_HV; | |
2392 | ||
6673a63c | 2393 | if (flags) |
a0d0e21e LW |
2394 | return GvHVn(gv); |
2395 | if (gv) | |
2396 | return GvHV(gv); | |
5c284bb0 | 2397 | return NULL; |
a0d0e21e LW |
2398 | } |
2399 | ||
954c1994 | 2400 | /* |
ccfc67b7 JH |
2401 | =head1 CV Manipulation Functions |
2402 | ||
780a5241 NC |
2403 | =for apidoc p||get_cvn_flags |
2404 | ||
2405 | Returns the CV of the specified Perl subroutine. C<flags> are passed to | |
2406 | C<gv_fetchpvn_flags>. If C<GV_ADD> is set and the Perl subroutine does not | |
2407 | exist then it will be declared (which has the same effect as saying | |
2408 | C<sub name;>). If C<GV_ADD> is not set and the subroutine does not exist | |
2409 | then NULL is returned. | |
2410 | ||
954c1994 GS |
2411 | =for apidoc p||get_cv |
2412 | ||
780a5241 | 2413 | Uses C<strlen> to get the length of C<name>, then calls C<get_cvn_flags>. |
954c1994 GS |
2414 | |
2415 | =cut | |
2416 | */ | |
2417 | ||
a0d0e21e | 2418 | CV* |
780a5241 | 2419 | Perl_get_cvn_flags(pTHX_ const char *name, STRLEN len, I32 flags) |
a0d0e21e | 2420 | { |
780a5241 | 2421 | GV* const gv = gv_fetchpvn_flags(name, len, flags, SVt_PVCV); |
f6ec51f7 GS |
2422 | /* XXX this is probably not what they think they're getting. |
2423 | * It has the same effect as "sub name;", i.e. just a forward | |
2424 | * declaration! */ | |
7918f24d NC |
2425 | |
2426 | PERL_ARGS_ASSERT_GET_CVN_FLAGS; | |
2427 | ||
780a5241 | 2428 | if ((flags & ~GV_NOADD_MASK) && !GvCVu(gv)) { |
740cce10 | 2429 | SV *const sv = newSVpvn_flags(name, len, flags & SVf_UTF8); |
774d564b | 2430 | return newSUB(start_subparse(FALSE, 0), |
780a5241 | 2431 | newSVOP(OP_CONST, 0, sv), |
5f66b61c | 2432 | NULL, NULL); |
780a5241 | 2433 | } |
a0d0e21e | 2434 | if (gv) |
8ebc5c01 | 2435 | return GvCVu(gv); |
601f1833 | 2436 | return NULL; |
a0d0e21e LW |
2437 | } |
2438 | ||
2c67934f NC |
2439 | /* Nothing in core calls this now, but we can't replace it with a macro and |
2440 | move it to mathoms.c as a macro would evaluate name twice. */ | |
780a5241 NC |
2441 | CV* |
2442 | Perl_get_cv(pTHX_ const char *name, I32 flags) | |
2443 | { | |
7918f24d NC |
2444 | PERL_ARGS_ASSERT_GET_CV; |
2445 | ||
780a5241 NC |
2446 | return get_cvn_flags(name, strlen(name), flags); |
2447 | } | |
2448 | ||
79072805 LW |
2449 | /* Be sure to refetch the stack pointer after calling these routines. */ |
2450 | ||
954c1994 | 2451 | /* |
ccfc67b7 JH |
2452 | |
2453 | =head1 Callback Functions | |
2454 | ||
954c1994 GS |
2455 | =for apidoc p||call_argv |
2456 | ||
2457 | Performs a callback to the specified Perl sub. See L<perlcall>. | |
2458 | ||
2459 | =cut | |
2460 | */ | |
2461 | ||
a0d0e21e | 2462 | I32 |
8f42b153 | 2463 | Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv) |
ac27b0f5 | 2464 | |
8ac85365 NIS |
2465 | /* See G_* flags in cop.h */ |
2466 | /* null terminated arg list */ | |
8990e307 | 2467 | { |
97aff369 | 2468 | dVAR; |
a0d0e21e | 2469 | dSP; |
8990e307 | 2470 | |
7918f24d NC |
2471 | PERL_ARGS_ASSERT_CALL_ARGV; |
2472 | ||
924508f0 | 2473 | PUSHMARK(SP); |
a0d0e21e | 2474 | if (argv) { |
8990e307 | 2475 | while (*argv) { |
6e449a3a | 2476 | mXPUSHs(newSVpv(*argv,0)); |
8990e307 LW |
2477 | argv++; |
2478 | } | |
a0d0e21e | 2479 | PUTBACK; |
8990e307 | 2480 | } |
864dbfa3 | 2481 | return call_pv(sub_name, flags); |
8990e307 LW |
2482 | } |
2483 | ||
954c1994 GS |
2484 | /* |
2485 | =for apidoc p||call_pv | |
2486 | ||
2487 | Performs a callback to the specified Perl sub. See L<perlcall>. | |
2488 | ||
2489 | =cut | |
2490 | */ | |
2491 | ||
a0d0e21e | 2492 | I32 |
864dbfa3 | 2493 | Perl_call_pv(pTHX_ const char *sub_name, I32 flags) |
8ac85365 NIS |
2494 | /* name of the subroutine */ |
2495 | /* See G_* flags in cop.h */ | |
a0d0e21e | 2496 | { |
7918f24d NC |
2497 | PERL_ARGS_ASSERT_CALL_PV; |
2498 | ||
0da0e728 | 2499 | return call_sv(MUTABLE_SV(get_cv(sub_name, GV_ADD)), flags); |
a0d0e21e LW |
2500 | } |
2501 | ||
954c1994 GS |
2502 | /* |
2503 | =for apidoc p||call_method | |
2504 | ||
2505 | Performs a callback to the specified Perl method. The blessed object must | |
2506 | be on the stack. See L<perlcall>. | |
2507 | ||
2508 | =cut | |
2509 | */ | |
2510 | ||
a0d0e21e | 2511 | I32 |
864dbfa3 | 2512 | Perl_call_method(pTHX_ const char *methname, I32 flags) |
8ac85365 NIS |
2513 | /* name of the subroutine */ |
2514 | /* See G_* flags in cop.h */ | |
a0d0e21e | 2515 | { |
46ca9bac | 2516 | STRLEN len; |
7918f24d NC |
2517 | PERL_ARGS_ASSERT_CALL_METHOD; |
2518 | ||
46ca9bac GF |
2519 | len = strlen(methname); |
2520 | ||
2521 | /* XXX: sv_2mortal(newSVpvn_share(methname, len)) can be faster */ | |
2522 | return call_sv(newSVpvn_flags(methname, len, SVs_TEMP), flags | G_METHOD); | |
a0d0e21e LW |
2523 | } |
2524 | ||
2525 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
954c1994 GS |
2526 | /* |
2527 | =for apidoc p||call_sv | |
2528 | ||
2529 | Performs a callback to the Perl sub whose name is in the SV. See | |
2530 | L<perlcall>. | |
2531 | ||
2532 | =cut | |
2533 | */ | |
2534 | ||
a0d0e21e | 2535 | I32 |
001d637e | 2536 | Perl_call_sv(pTHX_ SV *sv, VOL I32 flags) |
8ac85365 | 2537 | /* See G_* flags in cop.h */ |
a0d0e21e | 2538 | { |
27da23d5 | 2539 | dVAR; dSP; |
a0d0e21e | 2540 | LOGOP myop; /* fake syntax tree node */ |
968b3946 | 2541 | UNOP method_op; |
aa689395 | 2542 | I32 oldmark; |
8ea43dc8 | 2543 | VOL I32 retval = 0; |
a0d0e21e | 2544 | I32 oldscope; |
54310121 | 2545 | bool oldcatch = CATCH_GET; |
6224f72b | 2546 | int ret; |
c4420975 | 2547 | OP* const oldop = PL_op; |
db36c5a1 | 2548 | dJMPENV; |
1e422769 | 2549 | |
7918f24d NC |
2550 | PERL_ARGS_ASSERT_CALL_SV; |
2551 | ||
a0d0e21e LW |
2552 | if (flags & G_DISCARD) { |
2553 | ENTER; | |
2554 | SAVETMPS; | |
2555 | } | |
2f8edad0 NC |
2556 | if (!(flags & G_WANT)) { |
2557 | /* Backwards compatibility - as G_SCALAR was 0, it could be omitted. | |
2558 | */ | |
2559 | flags |= G_SCALAR; | |
2560 | } | |
a0d0e21e | 2561 | |
aa689395 | 2562 | Zero(&myop, 1, LOGOP); |
5f66b61c | 2563 | myop.op_next = NULL; |
f51d4af5 | 2564 | if (!(flags & G_NOARGS)) |
aa689395 | 2565 | myop.op_flags |= OPf_STACKED; |
4f911530 | 2566 | myop.op_flags |= OP_GIMME_REVERSE(flags); |
462e5cf6 | 2567 | SAVEOP(); |
533c011a | 2568 | PL_op = (OP*)&myop; |
aa689395 | 2569 | |
3280af22 NIS |
2570 | EXTEND(PL_stack_sp, 1); |
2571 | *++PL_stack_sp = sv; | |
aa689395 | 2572 | oldmark = TOPMARK; |
3280af22 | 2573 | oldscope = PL_scopestack_ix; |
a0d0e21e | 2574 | |
3280af22 | 2575 | if (PERLDB_SUB && PL_curstash != PL_debstash |
36477c24 | 2576 | /* Handle first BEGIN of -d. */ |
3280af22 | 2577 | && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub))) |
36477c24 | 2578 | /* Try harder, since this may have been a sighandler, thus |
2579 | * curstash may be meaningless. */ | |
ea726b52 | 2580 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((const CV *)sv) != PL_debstash) |
491527d0 | 2581 | && !(flags & G_NODEBUG)) |
533c011a | 2582 | PL_op->op_private |= OPpENTERSUB_DB; |
a0d0e21e | 2583 | |
968b3946 GS |
2584 | if (flags & G_METHOD) { |
2585 | Zero(&method_op, 1, UNOP); | |
2586 | method_op.op_next = PL_op; | |
2587 | method_op.op_ppaddr = PL_ppaddr[OP_METHOD]; | |
377b1098 | 2588 | method_op.op_type = OP_METHOD; |
968b3946 | 2589 | myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB]; |
377b1098 | 2590 | myop.op_type = OP_ENTERSUB; |
f39d0b86 | 2591 | PL_op = (OP*)&method_op; |
968b3946 GS |
2592 | } |
2593 | ||
312caa8e | 2594 | if (!(flags & G_EVAL)) { |
0cdb2077 | 2595 | CATCH_SET(TRUE); |
d6f07c05 | 2596 | CALL_BODY_SUB((OP*)&myop); |
312caa8e | 2597 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
0253cb41 | 2598 | CATCH_SET(oldcatch); |
312caa8e CS |
2599 | } |
2600 | else { | |
d78bda3d | 2601 | myop.op_other = (OP*)&myop; |
3280af22 | 2602 | PL_markstack_ptr--; |
edb2152a | 2603 | create_eval_scope(flags|G_FAKINGEVAL); |
3280af22 | 2604 | PL_markstack_ptr++; |
a0d0e21e | 2605 | |
14dd3ad8 | 2606 | JMPENV_PUSH(ret); |
edb2152a | 2607 | |
6224f72b GS |
2608 | switch (ret) { |
2609 | case 0: | |
14dd3ad8 | 2610 | redo_body: |
d6f07c05 | 2611 | CALL_BODY_SUB((OP*)&myop); |
312caa8e | 2612 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
8433848b | 2613 | if (!(flags & G_KEEPERR)) { |
ab69dbc2 | 2614 | CLEAR_ERRSV(); |
8433848b | 2615 | } |
a0d0e21e | 2616 | break; |
6224f72b | 2617 | case 1: |
f86702cc | 2618 | STATUS_ALL_FAILURE; |
a0d0e21e | 2619 | /* FALL THROUGH */ |
6224f72b | 2620 | case 2: |
a0d0e21e | 2621 | /* my_exit() was called */ |
3280af22 | 2622 | PL_curstash = PL_defstash; |
a0d0e21e | 2623 | FREETMPS; |
14dd3ad8 | 2624 | JMPENV_POP; |
f86702cc | 2625 | my_exit_jump(); |
a0d0e21e | 2626 | /* NOTREACHED */ |
6224f72b | 2627 | case 3: |
3280af22 | 2628 | if (PL_restartop) { |
febb3a6d | 2629 | PL_restartjmpenv = NULL; |
533c011a | 2630 | PL_op = PL_restartop; |
3280af22 | 2631 | PL_restartop = 0; |
312caa8e | 2632 | goto redo_body; |
a0d0e21e | 2633 | } |
3280af22 | 2634 | PL_stack_sp = PL_stack_base + oldmark; |
51ce5529 | 2635 | if ((flags & G_WANT) == G_ARRAY) |
a0d0e21e LW |
2636 | retval = 0; |
2637 | else { | |
2638 | retval = 1; | |
3280af22 | 2639 | *++PL_stack_sp = &PL_sv_undef; |
a0d0e21e | 2640 | } |
312caa8e | 2641 | break; |
a0d0e21e | 2642 | } |
a0d0e21e | 2643 | |
edb2152a NC |
2644 | if (PL_scopestack_ix > oldscope) |
2645 | delete_eval_scope(); | |
14dd3ad8 | 2646 | JMPENV_POP; |
a0d0e21e | 2647 | } |
1e422769 | 2648 | |
a0d0e21e | 2649 | if (flags & G_DISCARD) { |
3280af22 | 2650 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
2651 | retval = 0; |
2652 | FREETMPS; | |
2653 | LEAVE; | |
2654 | } | |
533c011a | 2655 | PL_op = oldop; |
a0d0e21e LW |
2656 | return retval; |
2657 | } | |
2658 | ||
6e72f9df | 2659 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 | 2660 | |
954c1994 GS |
2661 | /* |
2662 | =for apidoc p||eval_sv | |
2663 | ||
be064c4a DM |
2664 | Tells Perl to C<eval> the string in the SV. It supports the same flags |
2665 | as C<call_sv>, with the obvious exception of G_EVAL. See L<perlcall>. | |
954c1994 GS |
2666 | |
2667 | =cut | |
2668 | */ | |
2669 | ||
a0d0e21e | 2670 | I32 |
864dbfa3 | 2671 | Perl_eval_sv(pTHX_ SV *sv, I32 flags) |
ac27b0f5 | 2672 | |
8ac85365 | 2673 | /* See G_* flags in cop.h */ |
a0d0e21e | 2674 | { |
97aff369 | 2675 | dVAR; |
924508f0 | 2676 | dSP; |
a0d0e21e | 2677 | UNOP myop; /* fake syntax tree node */ |
8ea43dc8 SP |
2678 | VOL I32 oldmark = SP - PL_stack_base; |
2679 | VOL I32 retval = 0; | |
6224f72b | 2680 | int ret; |
c4420975 | 2681 | OP* const oldop = PL_op; |
db36c5a1 | 2682 | dJMPENV; |
84902520 | 2683 | |
7918f24d NC |
2684 | PERL_ARGS_ASSERT_EVAL_SV; |
2685 | ||
4633a7c4 LW |
2686 | if (flags & G_DISCARD) { |
2687 | ENTER; | |
2688 | SAVETMPS; | |
2689 | } | |
2690 | ||
462e5cf6 | 2691 | SAVEOP(); |
533c011a NIS |
2692 | PL_op = (OP*)&myop; |
2693 | Zero(PL_op, 1, UNOP); | |
3280af22 NIS |
2694 | EXTEND(PL_stack_sp, 1); |
2695 | *++PL_stack_sp = sv; | |
79072805 | 2696 | |
4633a7c4 LW |
2697 | if (!(flags & G_NOARGS)) |
2698 | myop.op_flags = OPf_STACKED; | |
5f66b61c | 2699 | myop.op_next = NULL; |
6e72f9df | 2700 | myop.op_type = OP_ENTEREVAL; |
4f911530 | 2701 | myop.op_flags |= OP_GIMME_REVERSE(flags); |
6e72f9df | 2702 | if (flags & G_KEEPERR) |
2703 | myop.op_flags |= OPf_SPECIAL; | |
4633a7c4 | 2704 | |
dedbcade DM |
2705 | /* fail now; otherwise we could fail after the JMPENV_PUSH but |
2706 | * before a PUSHEVAL, which corrupts the stack after a croak */ | |
2707 | TAINT_PROPER("eval_sv()"); | |
2708 | ||
14dd3ad8 | 2709 | JMPENV_PUSH(ret); |
6224f72b GS |
2710 | switch (ret) { |
2711 | case 0: | |
14dd3ad8 | 2712 | redo_body: |
2ba65d5f DM |
2713 | if (PL_op == (OP*)(&myop)) { |
2714 | PL_op = PL_ppaddr[OP_ENTEREVAL](aTHX); | |
2715 | if (!PL_op) | |
2716 | goto fail; /* failed in compilation */ | |
2717 | } | |
4aca2f62 | 2718 | CALLRUNOPS(aTHX); |
312caa8e | 2719 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
8433848b | 2720 | if (!(flags & G_KEEPERR)) { |
ab69dbc2 | 2721 | CLEAR_ERRSV(); |
8433848b | 2722 | } |
4633a7c4 | 2723 | break; |
6224f72b | 2724 | case 1: |
f86702cc | 2725 | STATUS_ALL_FAILURE; |
4633a7c4 | 2726 | /* FALL THROUGH */ |
6224f72b | 2727 | case 2: |
4633a7c4 | 2728 | /* my_exit() was called */ |
3280af22 | 2729 | PL_curstash = PL_defstash; |
4633a7c4 | 2730 | FREETMPS; |
14dd3ad8 | 2731 | JMPENV_POP; |
f86702cc | 2732 | my_exit_jump(); |
4633a7c4 | 2733 | /* NOTREACHED */ |
6224f72b | 2734 | case 3: |
3280af22 | 2735 | if (PL_restartop) { |
febb3a6d | 2736 | PL_restartjmpenv = NULL; |
533c011a | 2737 | PL_op = PL_restartop; |
3280af22 | 2738 | PL_restartop = 0; |
312caa8e | 2739 | goto redo_body; |
4633a7c4 | 2740 | } |
4aca2f62 | 2741 | fail: |
3280af22 | 2742 | PL_stack_sp = PL_stack_base + oldmark; |
51ce5529 | 2743 | if ((flags & G_WANT) == G_ARRAY) |
4633a7c4 LW |
2744 | retval = 0; |
2745 | else { | |
2746 | retval = 1; | |
3280af22 | 2747 | *++PL_stack_sp = &PL_sv_undef; |
4633a7c4 | 2748 | } |
312caa8e | 2749 | break; |
4633a7c4 LW |
2750 | } |
2751 | ||
14dd3ad8 | 2752 | JMPENV_POP; |
4633a7c4 | 2753 | if (flags & G_DISCARD) { |
3280af22 | 2754 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
2755 | retval = 0; |
2756 | FREETMPS; | |
2757 | LEAVE; | |
2758 | } | |
533c011a | 2759 | PL_op = oldop; |
4633a7c4 LW |
2760 | return retval; |
2761 | } | |
2762 | ||
954c1994 GS |
2763 | /* |
2764 | =for apidoc p||eval_pv | |
2765 | ||
2766 | Tells Perl to C<eval> the given string and return an SV* result. | |
2767 | ||
2768 | =cut | |
2769 | */ | |
2770 | ||
137443ea | 2771 | SV* |
864dbfa3 | 2772 | Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error) |
137443ea | 2773 | { |
97aff369 | 2774 | dVAR; |
137443ea | 2775 | dSP; |
2776 | SV* sv = newSVpv(p, 0); | |
2777 | ||
7918f24d NC |
2778 | PERL_ARGS_ASSERT_EVAL_PV; |
2779 | ||
864dbfa3 | 2780 | eval_sv(sv, G_SCALAR); |
137443ea | 2781 | SvREFCNT_dec(sv); |
2782 | ||
2783 | SPAGAIN; | |
2784 | sv = POPs; | |
2785 | PUTBACK; | |
2786 | ||
2d8e6c8d | 2787 | if (croak_on_error && SvTRUE(ERRSV)) { |
f1f66076 | 2788 | Perl_croak(aTHX_ "%s", SvPVx_nolen_const(ERRSV)); |
2d8e6c8d | 2789 | } |
137443ea | 2790 | |
2791 | return sv; | |
2792 | } | |
2793 | ||
4633a7c4 LW |
2794 | /* Require a module. */ |
2795 | ||
954c1994 | 2796 | /* |
ccfc67b7 JH |
2797 | =head1 Embedding Functions |
2798 | ||
954c1994 GS |
2799 | =for apidoc p||require_pv |
2800 | ||
7d3fb230 BS |
2801 | Tells Perl to C<require> the file named by the string argument. It is |
2802 | analogous to the Perl code C<eval "require '$file'">. It's even | |
2307c6d0 | 2803 | implemented that way; consider using load_module instead. |
954c1994 | 2804 | |
7d3fb230 | 2805 | =cut */ |
954c1994 | 2806 | |
4633a7c4 | 2807 | void |
864dbfa3 | 2808 | Perl_require_pv(pTHX_ const char *pv) |
4633a7c4 | 2809 | { |
97aff369 | 2810 | dVAR; |
d3acc0f7 | 2811 | dSP; |
97aff369 | 2812 | SV* sv; |
7918f24d NC |
2813 | |
2814 | PERL_ARGS_ASSERT_REQUIRE_PV; | |
2815 | ||
e788e7d3 | 2816 | PUSHSTACKi(PERLSI_REQUIRE); |
d3acc0f7 | 2817 | PUTBACK; |
be41e5d9 NC |
2818 | sv = Perl_newSVpvf(aTHX_ "require q%c%s%c", 0, pv, 0); |
2819 | eval_sv(sv_2mortal(sv), G_DISCARD); | |
d3acc0f7 JP |
2820 | SPAGAIN; |
2821 | POPSTACK; | |
79072805 LW |
2822 | } |
2823 | ||
76e3520e | 2824 | STATIC void |
e1ec3a88 | 2825 | S_usage(pTHX_ const char *name) /* XXX move this out into a module ? */ |
4633a7c4 | 2826 | { |
ab821d7f | 2827 | /* This message really ought to be max 23 lines. |
75c72d73 | 2828 | * Removed -h because the user already knows that option. Others? */ |
fb73857a | 2829 | |
1566c39d NC |
2830 | /* Grouped as 6 lines per C string literal, to keep under the ANSI C 89 |
2831 | minimum of 509 character string literals. */ | |
27da23d5 | 2832 | static const char * const usage_msg[] = { |
1566c39d NC |
2833 | " -0[octal] specify record separator (\\0, if no argument)\n" |
2834 | " -a autosplit mode with -n or -p (splits $_ into @F)\n" | |
2835 | " -C[number/list] enables the listed Unicode features\n" | |
2836 | " -c check syntax only (runs BEGIN and CHECK blocks)\n" | |
2837 | " -d[:debugger] run program under debugger\n" | |
2838 | " -D[number/list] set debugging flags (argument is a bit mask or alphabets)\n", | |
2839 | " -e program one line of program (several -e's allowed, omit programfile)\n" | |
2840 | " -E program like -e, but enables all optional features\n" | |
2841 | " -f don't do $sitelib/sitecustomize.pl at startup\n" | |
2842 | " -F/pattern/ split() pattern for -a switch (//'s are optional)\n" | |
2843 | " -i[extension] edit <> files in place (makes backup if extension supplied)\n" | |
2844 | " -Idirectory specify @INC/#include directory (several -I's allowed)\n", | |
2845 | " -l[octal] enable line ending processing, specifies line terminator\n" | |
2846 | " -[mM][-]module execute \"use/no module...\" before executing program\n" | |
2847 | " -n assume \"while (<>) { ... }\" loop around program\n" | |
2848 | " -p assume loop like -n but print line also, like sed\n" | |
2849 | " -s enable rudimentary parsing for switches after programfile\n" | |
2850 | " -S look for programfile using PATH environment variable\n", | |
2851 | " -t enable tainting warnings\n" | |
2852 | " -T enable tainting checks\n" | |
2853 | " -u dump core after parsing program\n" | |
2854 | " -U allow unsafe operations\n" | |
2855 | " -v print version, patchlevel and license\n" | |
2856 | " -V[:variable] print configuration summary (or a single Config.pm variable)\n", | |
60eaec42 | 2857 | " -w enable many useful warnings\n" |
1566c39d NC |
2858 | " -W enable all warnings\n" |
2859 | " -x[directory] ignore text before #!perl line (optionally cd to directory)\n" | |
2860 | " -X disable all warnings\n" | |
2861 | " \n" | |
2862 | "Run 'perldoc perl' for more help with Perl.\n\n", | |
fb73857a | 2863 | NULL |
2864 | }; | |
27da23d5 | 2865 | const char * const *p = usage_msg; |
1566c39d | 2866 | PerlIO *out = PerlIO_stdout(); |
fb73857a | 2867 | |
7918f24d NC |
2868 | PERL_ARGS_ASSERT_USAGE; |
2869 | ||
1566c39d NC |
2870 | PerlIO_printf(out, |
2871 | "\nUsage: %s [switches] [--] [programfile] [arguments]\n", | |
b0e47665 | 2872 | name); |
fb73857a | 2873 | while (*p) |
1566c39d | 2874 | PerlIO_puts(out, *p++); |
4633a7c4 LW |
2875 | } |
2876 | ||
b4ab917c DM |
2877 | /* convert a string of -D options (or digits) into an int. |
2878 | * sets *s to point to the char after the options */ | |
2879 | ||
2880 | #ifdef DEBUGGING | |
2881 | int | |
e1ec3a88 | 2882 | Perl_get_debug_opts(pTHX_ const char **s, bool givehelp) |
b4ab917c | 2883 | { |
27da23d5 | 2884 | static const char * const usage_msgd[] = { |
651b8f1a NC |
2885 | " Debugging flag values: (see also -d)\n" |
2886 | " p Tokenizing and parsing (with v, displays parse stack)\n" | |
2887 | " s Stack snapshots (with v, displays all stacks)\n" | |
2888 | " l Context (loop) stack processing\n" | |
2889 | " t Trace execution\n" | |
2890 | " o Method and overloading resolution\n", | |
2891 | " c String/numeric conversions\n" | |
2892 | " P Print profiling info, source file input state\n" | |
2893 | " m Memory and SV allocation\n" | |
2894 | " f Format processing\n" | |
2895 | " r Regular expression parsing and execution\n" | |
2896 | " x Syntax tree dump\n", | |
2897 | " u Tainting checks\n" | |
2898 | " H Hash dump -- usurps values()\n" | |
2899 | " X Scratchpad allocation\n" | |
2900 | " D Cleaning up\n" | |
2901 | " T Tokenising\n" | |
2902 | " R Include reference counts of dumped variables (eg when using -Ds)\n", | |
2903 | " J Do not s,t,P-debug (Jump over) opcodes within package DB\n" | |
2904 | " v Verbose: use in conjunction with other flags\n" | |
2905 | " C Copy On Write\n" | |
2906 | " A Consistency checks on internal structures\n" | |
2907 | " q quiet - currently only suppresses the 'EXECUTING' message\n" | |
2908 | " M trace smart match resolution\n" | |
2909 | " B dump suBroutine definitions, including special Blocks like BEGIN\n", | |
e6e64d9b JC |
2910 | NULL |
2911 | }; | |
b4ab917c | 2912 | int i = 0; |
7918f24d NC |
2913 | |
2914 | PERL_ARGS_ASSERT_GET_DEBUG_OPTS; | |
2915 | ||
b4ab917c DM |
2916 | if (isALPHA(**s)) { |
2917 | /* if adding extra options, remember to update DEBUG_MASK */ | |
cc8773c0 | 2918 | static const char debopts[] = "psltocPmfrxuUHXDSTRJvCAqMB"; |
b4ab917c DM |
2919 | |
2920 | for (; isALNUM(**s); (*s)++) { | |
c4420975 | 2921 | const char * const d = strchr(debopts,**s); |
b4ab917c DM |
2922 | if (d) |
2923 | i |= 1 << (d - debopts); | |
2924 | else if (ckWARN_d(WARN_DEBUGGING)) | |
e6e64d9b JC |
2925 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
2926 | "invalid option -D%c, use -D'' to see choices\n", **s); | |
b4ab917c DM |
2927 | } |
2928 | } | |
e6e64d9b | 2929 | else if (isDIGIT(**s)) { |
b4ab917c DM |
2930 | i = atoi(*s); |
2931 | for (; isALNUM(**s); (*s)++) ; | |
2932 | } | |
ddcf8bc1 | 2933 | else if (givehelp) { |
06e869a4 | 2934 | const char *const *p = usage_msgd; |
651b8f1a | 2935 | while (*p) PerlIO_puts(PerlIO_stdout(), *p++); |
e6e64d9b | 2936 | } |
b4ab917c DM |
2937 | # ifdef EBCDIC |
2938 | if ((i & DEBUG_p_FLAG) && ckWARN_d(WARN_DEBUGGING)) | |
2939 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), | |
2940 | "-Dp not implemented on this platform\n"); | |
2941 | # endif | |
2942 | return i; | |
2943 | } | |
2944 | #endif | |
2945 | ||
79072805 LW |
2946 | /* This routine handles any switches that can be given during run */ |
2947 | ||
c7030b81 NC |
2948 | const char * |
2949 | Perl_moreswitches(pTHX_ const char *s) | |
79072805 | 2950 | { |
27da23d5 | 2951 | dVAR; |
84c133a0 | 2952 | UV rschar; |
0544e6df | 2953 | const char option = *s; /* used to remember option in -m/-M code */ |
79072805 | 2954 | |
7918f24d NC |
2955 | PERL_ARGS_ASSERT_MORESWITCHES; |
2956 | ||
79072805 LW |
2957 | switch (*s) { |
2958 | case '0': | |
a863c7d1 | 2959 | { |
f2095865 | 2960 | I32 flags = 0; |
a3b680e6 | 2961 | STRLEN numlen; |
f2095865 JH |
2962 | |
2963 | SvREFCNT_dec(PL_rs); | |
2964 | if (s[1] == 'x' && s[2]) { | |
a3b680e6 | 2965 | const char *e = s+=2; |
f2095865 JH |
2966 | U8 *tmps; |
2967 | ||
a3b680e6 AL |
2968 | while (*e) |
2969 | e++; | |
f2095865 JH |
2970 | numlen = e - s; |
2971 | flags = PERL_SCAN_SILENT_ILLDIGIT; | |
2972 | rschar = (U32)grok_hex(s, &numlen, &flags, NULL); | |
2973 | if (s + numlen < e) { | |
2974 | rschar = 0; /* Grandfather -0xFOO as -0 -xFOO. */ | |
2975 | numlen = 0; | |
2976 | s--; | |
2977 | } | |
396482e1 | 2978 | PL_rs = newSVpvs(""); |
c5661c80 | 2979 | SvGROW(PL_rs, (STRLEN)(UNISKIP(rschar) + 1)); |
f2095865 JH |
2980 | tmps = (U8*)SvPVX(PL_rs); |
2981 | uvchr_to_utf8(tmps, rschar); | |
2982 | SvCUR_set(PL_rs, UNISKIP(rschar)); | |
2983 | SvUTF8_on(PL_rs); | |
2984 | } | |
2985 | else { | |
2986 | numlen = 4; | |
2987 | rschar = (U32)grok_oct(s, &numlen, &flags, NULL); | |
2988 | if (rschar & ~((U8)~0)) | |
2989 | PL_rs = &PL_sv_undef; | |
2990 | else if (!rschar && numlen >= 2) | |
396482e1 | 2991 | PL_rs = newSVpvs(""); |
f2095865 JH |
2992 | else { |
2993 | char ch = (char)rschar; | |
2994 | PL_rs = newSVpvn(&ch, 1); | |
2995 | } | |
2996 | } | |
64ace3f8 | 2997 | sv_setsv(get_sv("/", GV_ADD), PL_rs); |
f2095865 | 2998 | return s + numlen; |
a863c7d1 | 2999 | } |
46487f74 | 3000 | case 'C': |
a05d7ebb | 3001 | s++; |
dd374669 | 3002 | PL_unicode = parse_unicode_opts( (const char **)&s ); |
5a22a2bb NC |
3003 | if (PL_unicode & PERL_UNICODE_UTF8CACHEASSERT_FLAG) |
3004 | PL_utf8cache = -1; | |
46487f74 | 3005 | return s; |
2304df62 | 3006 | case 'F': |
3280af22 | 3007 | PL_minus_F = TRUE; |
ebce5377 RGS |
3008 | PL_splitstr = ++s; |
3009 | while (*s && !isSPACE(*s)) ++s; | |
e49e380e | 3010 | PL_splitstr = savepvn(PL_splitstr, s - PL_splitstr); |
2304df62 | 3011 | return s; |
79072805 | 3012 | case 'a': |
3280af22 | 3013 | PL_minus_a = TRUE; |
79072805 LW |
3014 | s++; |
3015 | return s; | |
3016 | case 'c': | |
3280af22 | 3017 | PL_minus_c = TRUE; |
79072805 LW |
3018 | s++; |
3019 | return s; | |
3020 | case 'd': | |
f20b2998 | 3021 | forbid_setid('d', FALSE); |
4633a7c4 | 3022 | s++; |
2cbb2ee1 RGS |
3023 | |
3024 | /* -dt indicates to the debugger that threads will be used */ | |
3025 | if (*s == 't' && !isALNUM(s[1])) { | |
3026 | ++s; | |
3027 | my_setenv("PERL5DB_THREADED", "1"); | |
3028 | } | |
3029 | ||
70c94a19 RR |
3030 | /* The following permits -d:Mod to accepts arguments following an = |
3031 | in the fashion that -MSome::Mod does. */ | |
3032 | if (*s == ':' || *s == '=') { | |
f85893a1 NC |
3033 | const char *start = ++s; |
3034 | const char *const end = s + strlen(s); | |
396482e1 | 3035 | SV * const sv = newSVpvs("use Devel::"); |
f85893a1 | 3036 | |
70c94a19 RR |
3037 | /* We now allow -d:Module=Foo,Bar */ |
3038 | while(isALNUM(*s) || *s==':') ++s; | |
3039 | if (*s != '=') | |
f85893a1 | 3040 | sv_catpvn(sv, start, end - start); |
70c94a19 RR |
3041 | else { |
3042 | sv_catpvn(sv, start, s-start); | |
95a2b409 RGS |
3043 | /* Don't use NUL as q// delimiter here, this string goes in the |
3044 | * environment. */ | |
3045 | Perl_sv_catpvf(aTHX_ sv, " split(/,/,q{%s});", ++s); | |
70c94a19 | 3046 | } |
f85893a1 | 3047 | s = end; |
184f32ec | 3048 | my_setenv("PERL5DB", SvPV_nolen_const(sv)); |
c4db126b | 3049 | SvREFCNT_dec(sv); |
4633a7c4 | 3050 | } |
ed094faf | 3051 | if (!PL_perldb) { |
3280af22 | 3052 | PL_perldb = PERLDB_ALL; |
a0d0e21e | 3053 | init_debugger(); |
ed094faf | 3054 | } |
79072805 LW |
3055 | return s; |
3056 | case 'D': | |
0453d815 | 3057 | { |
79072805 | 3058 | #ifdef DEBUGGING |
f20b2998 | 3059 | forbid_setid('D', FALSE); |
b4ab917c | 3060 | s++; |
dd374669 | 3061 | PL_debug = get_debug_opts( (const char **)&s, 1) | DEBUG_TOP_FLAG; |
12a43e32 | 3062 | #else /* !DEBUGGING */ |
0453d815 | 3063 | if (ckWARN_d(WARN_DEBUGGING)) |
9014280d | 3064 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
e6e64d9b | 3065 | "Recompile perl with -DDEBUGGING to use -D switch (did you mean -d ?)\n"); |
a0d0e21e | 3066 | for (s++; isALNUM(*s); s++) ; |
79072805 | 3067 | #endif |
79072805 | 3068 | return s; |
0453d815 | 3069 | } |
4633a7c4 | 3070 | case 'h': |
ac27b0f5 | 3071 | usage(PL_origargv[0]); |
7ca617d0 | 3072 | my_exit(0); |
79072805 | 3073 | case 'i': |
43c5f42d | 3074 | Safefree(PL_inplace); |
c030f24b GH |
3075 | #if defined(__CYGWIN__) /* do backup extension automagically */ |
3076 | if (*(s+1) == '\0') { | |
c86a4f2e | 3077 | PL_inplace = savepvs(".bak"); |
c030f24b GH |
3078 | return s+1; |
3079 | } | |
3080 | #endif /* __CYGWIN__ */ | |
5ef5d758 | 3081 | { |
d4c19fe8 | 3082 | const char * const start = ++s; |
5ef5d758 NC |
3083 | while (*s && !isSPACE(*s)) |
3084 | ++s; | |
3085 | ||
3086 | PL_inplace = savepvn(start, s - start); | |
3087 | } | |
7b8d334a | 3088 | if (*s) { |
5ef5d758 | 3089 | ++s; |
7b8d334a | 3090 | if (*s == '-') /* Additional switches on #! line. */ |
5ef5d758 | 3091 | s++; |
7b8d334a | 3092 | } |
fb73857a | 3093 | return s; |
4e49a025 | 3094 | case 'I': /* -I handled both here and in parse_body() */ |
f20b2998 | 3095 | forbid_setid('I', FALSE); |
fb73857a | 3096 | ++s; |
3097 | while (*s && isSPACE(*s)) | |
3098 | ++s; | |
3099 | if (*s) { | |
c7030b81 | 3100 | const char *e, *p; |
0df16ed7 GS |
3101 | p = s; |
3102 | /* ignore trailing spaces (possibly followed by other switches) */ | |
3103 | do { | |
3104 | for (e = p; *e && !isSPACE(*e); e++) ; | |
3105 | p = e; | |
3106 | while (isSPACE(*p)) | |
3107 | p++; | |
3108 | } while (*p && *p != '-'); | |
55b4bc1c | 3109 | incpush(s, e-s, |
e28f3139 | 3110 | INCPUSH_ADD_SUB_DIRS|INCPUSH_ADD_OLD_VERS|INCPUSH_UNSHIFT); |
0df16ed7 GS |
3111 | s = p; |
3112 | if (*s == '-') | |
3113 | s++; | |
79072805 LW |
3114 | } |
3115 | else | |
a67e862a | 3116 | Perl_croak(aTHX_ "No directory specified for -I"); |
fb73857a | 3117 | return s; |
79072805 | 3118 | case 'l': |
3280af22 | 3119 | PL_minus_l = TRUE; |
79072805 | 3120 | s++; |
7889fe52 NIS |
3121 | if (PL_ors_sv) { |
3122 | SvREFCNT_dec(PL_ors_sv); | |
a0714e2c | 3123 | PL_ors_sv = NULL; |
7889fe52 | 3124 | } |
79072805 | 3125 | if (isDIGIT(*s)) { |
53305cf1 | 3126 | I32 flags = 0; |
a3b680e6 | 3127 | STRLEN numlen; |
396482e1 | 3128 | PL_ors_sv = newSVpvs("\n"); |
53305cf1 NC |
3129 | numlen = 3 + (*s == '0'); |
3130 | *SvPVX(PL_ors_sv) = (char)grok_oct(s, &numlen, &flags, NULL); | |
79072805 LW |
3131 | s += numlen; |
3132 | } | |
3133 | else { | |
8bfdd7d9 | 3134 | if (RsPARA(PL_rs)) { |
396482e1 | 3135 | PL_ors_sv = newSVpvs("\n\n"); |
7889fe52 NIS |
3136 | } |
3137 | else { | |
8bfdd7d9 | 3138 | PL_ors_sv = newSVsv(PL_rs); |
c07a80fd | 3139 | } |
79072805 LW |
3140 | } |
3141 | return s; | |
1a30305b | 3142 | case 'M': |
f20b2998 | 3143 | forbid_setid('M', FALSE); /* XXX ? */ |
1a30305b | 3144 | /* FALL THROUGH */ |
3145 | case 'm': | |
f20b2998 | 3146 | forbid_setid('m', FALSE); /* XXX ? */ |
1a30305b | 3147 | if (*++s) { |
c7030b81 | 3148 | const char *start; |
b64cb68c | 3149 | const char *end; |
11343788 | 3150 | SV *sv; |
e1ec3a88 | 3151 | const char *use = "use "; |
0544e6df | 3152 | bool colon = FALSE; |
a5f75d66 | 3153 | /* -M-foo == 'no foo' */ |
d0043bd1 NC |
3154 | /* Leading space on " no " is deliberate, to make both |
3155 | possibilities the same length. */ | |
3156 | if (*s == '-') { use = " no "; ++s; } | |
3157 | sv = newSVpvn(use,4); | |
a5f75d66 | 3158 | start = s; |
1a30305b | 3159 | /* We allow -M'Module qw(Foo Bar)' */ |
0544e6df RB |
3160 | while(isALNUM(*s) || *s==':') { |
3161 | if( *s++ == ':' ) { | |
3162 | if( *s == ':' ) | |
3163 | s++; | |
3164 | else | |
3165 | colon = TRUE; | |
3166 | } | |
3167 | } | |
3168 | if (s == start) | |
3169 | Perl_croak(aTHX_ "Module name required with -%c option", | |
3170 | option); | |
3171 | if (colon) | |
3172 | Perl_croak(aTHX_ "Invalid module name %.*s with -%c option: " | |
3173 | "contains single ':'", | |
63da6837 | 3174 | (int)(s - start), start, option); |
b64cb68c | 3175 | end = s + strlen(s); |
c07a80fd | 3176 | if (*s != '=') { |
b64cb68c | 3177 | sv_catpvn(sv, start, end - start); |
0544e6df | 3178 | if (option == 'm') { |
c07a80fd | 3179 | if (*s != '\0') |
cea2e8a9 | 3180 | Perl_croak(aTHX_ "Can't use '%c' after -mname", *s); |
396482e1 | 3181 | sv_catpvs( sv, " ()"); |
c07a80fd | 3182 | } |
3183 | } else { | |
11343788 | 3184 | sv_catpvn(sv, start, s-start); |
b64cb68c NC |
3185 | /* Use NUL as q''-delimiter. */ |
3186 | sv_catpvs(sv, " split(/,/,q\0"); | |
3187 | ++s; | |
3188 | sv_catpvn(sv, s, end - s); | |
396482e1 | 3189 | sv_catpvs(sv, "\0)"); |
c07a80fd | 3190 | } |
b64cb68c | 3191 | s = end; |
29a861e7 | 3192 | Perl_av_create_and_push(aTHX_ &PL_preambleav, sv); |
1a30305b | 3193 | } |
3194 | else | |
0544e6df | 3195 | Perl_croak(aTHX_ "Missing argument to -%c", option); |
1a30305b | 3196 | return s; |
79072805 | 3197 | case 'n': |
3280af22 | 3198 | PL_minus_n = TRUE; |
79072805 LW |
3199 | s++; |
3200 | return s; | |
3201 | case 'p': | |
3280af22 | 3202 | PL_minus_p = TRUE; |
79072805 LW |
3203 | s++; |
3204 | return s; | |
3205 | case 's': | |
f20b2998 | 3206 | forbid_setid('s', FALSE); |
3280af22 | 3207 | PL_doswitches = TRUE; |
79072805 LW |
3208 | s++; |
3209 | return s; | |
6537fe72 MS |
3210 | case 't': |
3211 | if (!PL_tainting) | |
22f7c9c9 | 3212 | TOO_LATE_FOR('t'); |
6537fe72 MS |
3213 | s++; |
3214 | return s; | |
463ee0b2 | 3215 | case 'T': |
3280af22 | 3216 | if (!PL_tainting) |
22f7c9c9 | 3217 | TOO_LATE_FOR('T'); |
463ee0b2 LW |
3218 | s++; |
3219 | return s; | |
79072805 | 3220 | case 'u': |
3280af22 | 3221 | PL_do_undump = TRUE; |
79072805 LW |
3222 | s++; |
3223 | return s; | |
3224 | case 'U': | |
3280af22 | 3225 | PL_unsafe = TRUE; |
79072805 LW |
3226 | s++; |
3227 | return s; | |
3228 | case 'v': | |
d7aa5382 | 3229 | if (!sv_derived_from(PL_patchlevel, "version")) |
ac0e6a2f | 3230 | upg_version(PL_patchlevel, TRUE); |
8e9464f1 | 3231 | #if !defined(DGUX) |
46807d8e YO |
3232 | { |
3233 | SV* level= vstringify(PL_patchlevel); | |
3234 | #ifdef PERL_PATCHNUM | |
23d483e2 NC |
3235 | # ifdef PERL_GIT_UNCOMMITTED_CHANGES |
3236 | SV *num = newSVpvs(PERL_PATCHNUM "*"); | |
3237 | # else | |
3238 | SV *num = newSVpvs(PERL_PATCHNUM); | |
3239 | # endif | |
46807d8e YO |
3240 | |
3241 | if (sv_len(num)>=sv_len(level) && strnEQ(SvPV_nolen(num),SvPV_nolen(level),sv_len(level))) { | |
3242 | SvREFCNT_dec(level); | |
3243 | level= num; | |
3244 | } else { | |
d0a9311f | 3245 | Perl_sv_catpvf(aTHX_ level, " (%"SVf")", num); |
46807d8e YO |
3246 | SvREFCNT_dec(num); |
3247 | } | |
3248 | #endif | |
3249 | PerlIO_printf(PerlIO_stdout(), | |
ded326e4 DG |
3250 | "\nThis is perl " STRINGIFY(PERL_REVISION) |
3251 | ", version " STRINGIFY(PERL_VERSION) | |
3252 | ", subversion " STRINGIFY(PERL_SUBVERSION) | |
3253 | " (%"SVf") built for " ARCHNAME, level | |
3254 | ); | |
46807d8e YO |
3255 | SvREFCNT_dec(level); |
3256 | } | |
8e9464f1 JH |
3257 | #else /* DGUX */ |
3258 | /* Adjust verbose output as in the perl that ships with the DG/UX OS from EMC */ | |
3259 | PerlIO_printf(PerlIO_stdout(), | |
52ea0aec | 3260 | Perl_form(aTHX_ "\nThis is perl, %"SVf"\n", |
be2597df | 3261 | SVfARG(vstringify(PL_patchlevel)))); |
8e9464f1 JH |
3262 | PerlIO_printf(PerlIO_stdout(), |
3263 | Perl_form(aTHX_ " built under %s at %s %s\n", | |
3264 | OSNAME, __DATE__, __TIME__)); | |
3265 | PerlIO_printf(PerlIO_stdout(), | |
3266 | Perl_form(aTHX_ " OS Specific Release: %s\n", | |
40a39f85 | 3267 | OSVERS)); |
8e9464f1 | 3268 | #endif /* !DGUX */ |
fb73857a | 3269 | #if defined(LOCAL_PATCH_COUNT) |
3270 | if (LOCAL_PATCH_COUNT > 0) | |
b0e47665 GS |
3271 | PerlIO_printf(PerlIO_stdout(), |
3272 | "\n(with %d registered patch%s, " | |
3273 | "see perl -V for more detail)", | |
bb7a0f54 | 3274 | LOCAL_PATCH_COUNT, |
b0e47665 | 3275 | (LOCAL_PATCH_COUNT!=1) ? "es" : ""); |
a5f75d66 | 3276 | #endif |
1a30305b | 3277 | |
b0e47665 | 3278 | PerlIO_printf(PerlIO_stdout(), |
32709fdf | 3279 | "\n\nCopyright 1987-2010, Larry Wall\n"); |
79072805 | 3280 | #ifdef MSDOS |
b0e47665 GS |
3281 | PerlIO_printf(PerlIO_stdout(), |
3282 | "\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); | |
55497cff | 3283 | #endif |
3284 | #ifdef DJGPP | |
b0e47665 GS |
3285 | PerlIO_printf(PerlIO_stdout(), |
3286 | "djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n" | |
3287 | "djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n"); | |
4633a7c4 | 3288 | #endif |
79072805 | 3289 | #ifdef OS2 |
b0e47665 GS |
3290 | PerlIO_printf(PerlIO_stdout(), |
3291 | "\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" | |
be3c0a43 | 3292 | "Version 5 port Copyright (c) 1994-2002, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 | 3293 | #endif |
79072805 | 3294 | #ifdef atarist |
b0e47665 GS |
3295 | PerlIO_printf(PerlIO_stdout(), |
3296 | "atariST series port, ++jrb bammi@cadence.com\n"); | |
79072805 | 3297 | #endif |
a3f9223b | 3298 | #ifdef __BEOS__ |
b0e47665 GS |
3299 | PerlIO_printf(PerlIO_stdout(), |
3300 | "BeOS port Copyright Tom Spindler, 1997-1999\n"); | |
a3f9223b | 3301 | #endif |
1d84e8df | 3302 | #ifdef MPE |
b0e47665 | 3303 | PerlIO_printf(PerlIO_stdout(), |
e583a879 | 3304 | "MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-2003\n"); |
1d84e8df | 3305 | #endif |
9d116dd7 | 3306 | #ifdef OEMVS |
b0e47665 GS |
3307 | PerlIO_printf(PerlIO_stdout(), |
3308 | "MVS (OS390) port by Mortice Kern Systems, 1997-1999\n"); | |
9d116dd7 | 3309 | #endif |
495c5fdc | 3310 | #ifdef __VOS__ |
b0e47665 | 3311 | PerlIO_printf(PerlIO_stdout(), |
94efb9fb | 3312 | "Stratus VOS port by Paul.Green@stratus.com, 1997-2002\n"); |
495c5fdc | 3313 | #endif |
092bebab | 3314 | #ifdef __OPEN_VM |
b0e47665 GS |
3315 | PerlIO_printf(PerlIO_stdout(), |
3316 | "VM/ESA port by Neale Ferguson, 1998-1999\n"); | |
092bebab | 3317 | #endif |
a1a0e61e | 3318 | #ifdef POSIX_BC |
b0e47665 GS |
3319 | PerlIO_printf(PerlIO_stdout(), |
3320 | "BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n"); | |
a1a0e61e | 3321 | #endif |
f83d2536 | 3322 | #ifdef EPOC |
b0e47665 | 3323 | PerlIO_printf(PerlIO_stdout(), |
be3c0a43 | 3324 | "EPOC port by Olaf Flebbe, 1999-2002\n"); |
f83d2536 | 3325 | #endif |
e1caacb4 | 3326 | #ifdef UNDER_CE |
b475b3e6 JH |
3327 | PerlIO_printf(PerlIO_stdout(),"WINCE port by Rainer Keuchel, 2001-2002\n"); |
3328 | PerlIO_printf(PerlIO_stdout(),"Built on " __DATE__ " " __TIME__ "\n\n"); | |
e1caacb4 JH |
3329 | wce_hitreturn(); |
3330 | #endif | |
a0fd4948 | 3331 | #ifdef __SYMBIAN32__ |
27da23d5 JH |
3332 | PerlIO_printf(PerlIO_stdout(), |
3333 | "Symbian port by Nokia, 2004-2005\n"); | |
3334 | #endif | |
baed7233 DL |
3335 | #ifdef BINARY_BUILD_NOTICE |
3336 | BINARY_BUILD_NOTICE; | |
3337 | #endif | |
b0e47665 GS |
3338 | PerlIO_printf(PerlIO_stdout(), |
3339 | "\n\ | |
79072805 | 3340 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
3d6f292d | 3341 | GNU General Public License, which may be found in the Perl 5 source kit.\n\n\ |
95103687 | 3342 | Complete documentation for Perl, including FAQ lists, should be found on\n\ |
a0288114 | 3343 | this system using \"man perl\" or \"perldoc perl\". If you have access to the\n\ |
c9e30dd8 | 3344 | Internet, point your browser at http://www.perl.org/, the Perl Home Page.\n\n"); |
7ca617d0 | 3345 | my_exit(0); |
79072805 | 3346 | case 'w': |
b2e5e6ba | 3347 | if (! (PL_dowarn & G_WARN_ALL_MASK)) { |
ac27b0f5 | 3348 | PL_dowarn |= G_WARN_ON; |
b2e5e6ba | 3349 | } |
599cee73 PM |
3350 | s++; |
3351 | return s; | |
3352 | case 'W': | |
ac27b0f5 | 3353 | PL_dowarn = G_WARN_ALL_ON|G_WARN_ON; |
317ea90d | 3354 | if (!specialWARN(PL_compiling.cop_warnings)) |
72dc9ed5 | 3355 | PerlMemShared_free(PL_compiling.cop_warnings); |
d3a7d8c7 | 3356 | PL_compiling.cop_warnings = pWARN_ALL ; |
599cee73 PM |
3357 | s++; |
3358 | return s; | |
3359 | case 'X': | |
ac27b0f5 | 3360 | PL_dowarn = G_WARN_ALL_OFF; |
317ea90d | 3361 | if (!specialWARN(PL_compiling.cop_warnings)) |
72dc9ed5 | 3362 | PerlMemShared_free(PL_compiling.cop_warnings); |
d3a7d8c7 | 3363 | PL_compiling.cop_warnings = pWARN_NONE ; |
79072805 LW |
3364 | s++; |
3365 | return s; | |
a0d0e21e | 3366 | case '*': |
79072805 | 3367 | case ' ': |
d3133c89 NC |
3368 | while( *s == ' ' ) |
3369 | ++s; | |
3370 | if (s[0] == '-') /* Additional switches on #! line. */ | |
3371 | return s+1; | |
79072805 | 3372 | break; |
a0d0e21e | 3373 | case '-': |
79072805 | 3374 | case 0: |
51882d45 | 3375 | #if defined(WIN32) || !defined(PERL_STRICT_CR) |
a868473f NIS |
3376 | case '\r': |
3377 | #endif | |
79072805 LW |
3378 | case '\n': |
3379 | case '\t': | |
3380 | break; | |
aa689395 | 3381 | #ifdef ALTERNATE_SHEBANG |
3382 | case 'S': /* OS/2 needs -S on "extproc" line. */ | |
3383 | break; | |
3384 | #endif | |
79072805 | 3385 | default: |
cea2e8a9 | 3386 | Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s); |
79072805 | 3387 | } |
bd61b366 | 3388 | return NULL; |
79072805 LW |
3389 | } |
3390 | ||
3391 | /* compliments of Tom Christiansen */ | |
3392 | ||
3393 | /* unexec() can be found in the Gnu emacs distribution */ | |
ee580363 | 3394 | /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */ |
79072805 LW |
3395 | |
3396 | void | |
864dbfa3 | 3397 | Perl_my_unexec(pTHX) |
79072805 | 3398 | { |
b37c2d43 | 3399 | PERL_UNUSED_CONTEXT; |
79072805 | 3400 | #ifdef UNEXEC |
b37c2d43 AL |
3401 | SV * prog = newSVpv(BIN_EXP, 0); |
3402 | SV * file = newSVpv(PL_origfilename, 0); | |
ee580363 | 3403 | int status = 1; |
79072805 LW |
3404 | extern int etext; |
3405 | ||
396482e1 | 3406 | sv_catpvs(prog, "/perl"); |
396482e1 | 3407 | sv_catpvs(file, ".perldump"); |
79072805 | 3408 | |
ee580363 GS |
3409 | unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0); |
3410 | /* unexec prints msg to stderr in case of failure */ | |
6ad3d225 | 3411 | PerlProc_exit(status); |
79072805 | 3412 | #else |
a5f75d66 AD |
3413 | # ifdef VMS |
3414 | # include <lib$routines.h> | |
3415 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ | |
84d78eb7 YO |
3416 | # elif defined(WIN32) || defined(__CYGWIN__) |
3417 | Perl_croak(aTHX_ "dump is not supported"); | |
aa689395 | 3418 | # else |
79072805 | 3419 | ABORT(); /* for use with undump */ |
aa689395 | 3420 | # endif |
a5f75d66 | 3421 | #endif |
79072805 LW |
3422 | } |
3423 | ||
cb68f92d GS |
3424 | /* initialize curinterp */ |
3425 | STATIC void | |
cea2e8a9 | 3426 | S_init_interp(pTHX) |
cb68f92d | 3427 | { |
97aff369 | 3428 | dVAR; |
acfe0abc GS |
3429 | #ifdef MULTIPLICITY |
3430 | # define PERLVAR(var,type) | |
3431 | # define PERLVARA(var,n,type) | |
3432 | # if defined(PERL_IMPLICIT_CONTEXT) | |
b7f7fff6 NC |
3433 | # define PERLVARI(var,type,init) aTHX->var = init; |
3434 | # define PERLVARIC(var,type,init) aTHX->var = init; | |
3967c732 | 3435 | # else |
acfe0abc GS |
3436 | # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init; |
3437 | # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init; | |
066ef5b5 | 3438 | # endif |
acfe0abc | 3439 | # include "intrpvar.h" |
acfe0abc GS |
3440 | # undef PERLVAR |
3441 | # undef PERLVARA | |
3442 | # undef PERLVARI | |
3443 | # undef PERLVARIC | |
3444 | #else | |
3445 | # define PERLVAR(var,type) | |
3446 | # define PERLVARA(var,n,type) | |
3447 | # define PERLVARI(var,type,init) PL_##var = init; | |
3448 | # define PERLVARIC(var,type,init) PL_##var = init; | |
3449 | # include "intrpvar.h" | |
acfe0abc GS |
3450 | # undef PERLVAR |
3451 | # undef PERLVARA | |
3452 | # undef PERLVARI | |
3453 | # undef PERLVARIC | |
cb68f92d GS |
3454 | #endif |
3455 | ||
46ab3289 NC |
3456 | /* As these are inside a structure, PERLVARI isn't capable of initialising |
3457 | them */ | |
6c3f0a89 NC |
3458 | PL_reg_oldcurpm = PL_reg_curpm = NULL; |
3459 | PL_reg_poscache = PL_reg_starttry = NULL; | |
cb68f92d GS |
3460 | } |
3461 | ||
76e3520e | 3462 | STATIC void |
cea2e8a9 | 3463 | S_init_main_stash(pTHX) |
79072805 | 3464 | { |
97aff369 | 3465 | dVAR; |
463ee0b2 | 3466 | GV *gv; |
6e72f9df | 3467 | |
3280af22 | 3468 | PL_curstash = PL_defstash = newHV(); |
23579a14 NC |
3469 | /* We know that the string "main" will be in the global shared string |
3470 | table, so it's a small saving to use it rather than allocate another | |
3471 | 8 bytes. */ | |
18916d0d | 3472 | PL_curstname = newSVpvs_share("main"); |
fafc274c | 3473 | gv = gv_fetchpvs("main::", GV_ADD|GV_NOTQUAL, SVt_PVHV); |
23579a14 NC |
3474 | /* If we hadn't caused another reference to "main" to be in the shared |
3475 | string table above, then it would be worth reordering these two, | |
3476 | because otherwise all we do is delete "main" from it as a consequence | |
3477 | of the SvREFCNT_dec, only to add it again with hv_name_set */ | |
adbc6bb1 | 3478 | SvREFCNT_dec(GvHV(gv)); |
23579a14 | 3479 | hv_name_set(PL_defstash, "main", 4, 0); |
85fbaab2 | 3480 | GvHV(gv) = MUTABLE_HV(SvREFCNT_inc_simple(PL_defstash)); |
463ee0b2 | 3481 | SvREADONLY_on(gv); |
fafc274c NC |
3482 | PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpvs("INC", GV_ADD|GV_NOTQUAL, |
3483 | SVt_PVAV))); | |
5a5094bd | 3484 | SvREFCNT_inc_simple_void(PL_incgv); /* Don't allow it to be freed */ |
3280af22 | 3485 | GvMULTI_on(PL_incgv); |
fafc274c | 3486 | PL_hintgv = gv_fetchpvs("\010", GV_ADD|GV_NOTQUAL, SVt_PV); /* ^H */ |
3280af22 | 3487 | GvMULTI_on(PL_hintgv); |
fafc274c | 3488 | PL_defgv = gv_fetchpvs("_", GV_ADD|GV_NOTQUAL, SVt_PVAV); |
5a5094bd | 3489 | SvREFCNT_inc_simple_void(PL_defgv); |
fafc274c | 3490 | PL_errgv = gv_HVadd(gv_fetchpvs("@", GV_ADD|GV_NOTQUAL, SVt_PV)); |
5a5094bd | 3491 | SvREFCNT_inc_simple_void(PL_errgv); |
3280af22 | 3492 | GvMULTI_on(PL_errgv); |
fafc274c | 3493 | PL_replgv = gv_fetchpvs("\022", GV_ADD|GV_NOTQUAL, SVt_PV); /* ^R */ |
3280af22 | 3494 | GvMULTI_on(PL_replgv); |
cea2e8a9 | 3495 | (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */ |
c69033f2 NC |
3496 | #ifdef PERL_DONT_CREATE_GVSV |
3497 | gv_SVadd(PL_errgv); | |
3498 | #endif | |
38a03e6e | 3499 | sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */ |
ab69dbc2 | 3500 | CLEAR_ERRSV(); |
3280af22 | 3501 | PL_curstash = PL_defstash; |
11faa288 | 3502 | CopSTASH_set(&PL_compiling, PL_defstash); |
5c1737d1 NC |
3503 | PL_debstash = GvHV(gv_fetchpvs("DB::", GV_ADDMULTI, SVt_PVHV)); |
3504 | PL_globalstash = GvHV(gv_fetchpvs("CORE::GLOBAL::", GV_ADDMULTI, | |
3505 | SVt_PVHV)); | |
4633a7c4 | 3506 | /* We must init $/ before switches are processed. */ |
64ace3f8 | 3507 | sv_setpvs(get_sv("/", GV_ADD), "\n"); |
79072805 LW |
3508 | } |
3509 | ||
fdf5d70d | 3510 | STATIC int |
2f352907 | 3511 | S_open_script(pTHX_ const char *scriptname, bool dosearch, |
f20b2998 | 3512 | bool *suidscript, PerlIO **rsfpp) |
79072805 | 3513 | { |
fdf5d70d | 3514 | int fdscript = -1; |
27da23d5 | 3515 | dVAR; |
1b24ed4b | 3516 | |
7918f24d NC |
3517 | PERL_ARGS_ASSERT_OPEN_SCRIPT; |
3518 | ||
3280af22 | 3519 | if (PL_e_script) { |
8afc33d6 | 3520 | PL_origfilename = savepvs("-e"); |
96436eeb | 3521 | } |
6c4ab083 GS |
3522 | else { |
3523 | /* if find_script() returns, it returns a malloc()-ed value */ | |
dd374669 | 3524 | scriptname = PL_origfilename = find_script(scriptname, dosearch, NULL, 1); |
6c4ab083 GS |
3525 | |
3526 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { | |
e1ec3a88 | 3527 | const char *s = scriptname + 8; |
fdf5d70d | 3528 | fdscript = atoi(s); |
6c4ab083 GS |
3529 | while (isDIGIT(*s)) |
3530 | s++; | |
3531 | if (*s) { | |
ae3f3efd PS |
3532 | /* PSz 18 Feb 04 |
3533 | * Tell apart "normal" usage of fdscript, e.g. | |
3534 | * with bash on FreeBSD: | |
3535 | * perl <( echo '#!perl -DA'; echo 'print "$0\n"') | |
3536 | * from usage in suidperl. | |
3537 | * Does any "normal" usage leave garbage after the number??? | |
3538 | * Is it a mistake to use a similar /dev/fd/ construct for | |
3539 | * suidperl? | |
3540 | */ | |
f20b2998 | 3541 | *suidscript = TRUE; |
ae3f3efd PS |
3542 | /* PSz 20 Feb 04 |
3543 | * Be supersafe and do some sanity-checks. | |
3544 | * Still, can we be sure we got the right thing? | |
3545 | */ | |
3546 | if (*s != '/') { | |
3547 | Perl_croak(aTHX_ "Wrong syntax (suid) fd script name \"%s\"\n", s); | |
3548 | } | |
3549 | if (! *(s+1)) { | |
3550 | Perl_croak(aTHX_ "Missing (suid) fd script name\n"); | |
3551 | } | |
6c4ab083 | 3552 | scriptname = savepv(s + 1); |
3280af22 | 3553 | Safefree(PL_origfilename); |
dd374669 | 3554 | PL_origfilename = (char *)scriptname; |
6c4ab083 GS |
3555 | } |
3556 | } | |
3557 | } | |
3558 | ||
05ec9bb3 | 3559 | CopFILE_free(PL_curcop); |
57843af0 | 3560 | CopFILE_set(PL_curcop, PL_origfilename); |
770526c1 | 3561 | if (*PL_origfilename == '-' && PL_origfilename[1] == '\0') |
dd374669 | 3562 | scriptname = (char *)""; |
fdf5d70d | 3563 | if (fdscript >= 0) { |
2f9285f8 | 3564 | *rsfpp = PerlIO_fdopen(fdscript,PERL_SCRIPT_MODE); |
1b24ed4b | 3565 | # if defined(HAS_FCNTL) && defined(F_SETFD) |
2f9285f8 | 3566 | if (*rsfpp) |
1b24ed4b | 3567 | /* ensure close-on-exec */ |
2f9285f8 | 3568 | fcntl(PerlIO_fileno(*rsfpp),F_SETFD,1); |
1b24ed4b | 3569 | # endif |
96436eeb | 3570 | } |
79072805 | 3571 | else if (!*scriptname) { |
cdd8118e | 3572 | forbid_setid(0, *suidscript); |
2f9285f8 | 3573 | *rsfpp = PerlIO_stdin(); |
79072805 | 3574 | } |
96436eeb | 3575 | else { |
9c12f1e5 RGS |
3576 | #ifdef FAKE_BIT_BUCKET |
3577 | /* This hack allows one not to have /dev/null (or BIT_BUCKET as it | |
3578 | * is called) and still have the "-e" work. (Believe it or not, | |
3579 | * a /dev/null is required for the "-e" to work because source | |
3580 | * filter magic is used to implement it. ) This is *not* a general | |
3581 | * replacement for a /dev/null. What we do here is create a temp | |
3582 | * file (an empty file), open up that as the script, and then | |
3583 | * immediately close and unlink it. Close enough for jazz. */ | |
3584 | #define FAKE_BIT_BUCKET_PREFIX "/tmp/perlnull-" | |
3585 | #define FAKE_BIT_BUCKET_SUFFIX "XXXXXXXX" | |
3586 | #define FAKE_BIT_BUCKET_TEMPLATE FAKE_BIT_BUCKET_PREFIX FAKE_BIT_BUCKET_SUFFIX | |
3587 | char tmpname[sizeof(FAKE_BIT_BUCKET_TEMPLATE)] = { | |
3588 | FAKE_BIT_BUCKET_TEMPLATE | |
3589 | }; | |
3590 | const char * const err = "Failed to create a fake bit bucket"; | |
3591 | if (strEQ(scriptname, BIT_BUCKET)) { | |
3592 | #ifdef HAS_MKSTEMP /* Hopefully mkstemp() is safe here. */ | |
3593 | int tmpfd = mkstemp(tmpname); | |
3594 | if (tmpfd > -1) { | |
3595 | scriptname = tmpname; | |
3596 | close(tmpfd); | |
3597 | } else | |
3598 | Perl_croak(aTHX_ err); | |
3599 | #else | |
3600 | # ifdef HAS_MKTEMP | |
3601 | scriptname = mktemp(tmpname); | |
3602 | if (!scriptname) | |
3603 | Perl_croak(aTHX_ err); | |
3604 | # endif | |
3605 | #endif | |
3606 | } | |
3607 | #endif | |
2f9285f8 | 3608 | *rsfpp = PerlIO_open(scriptname,PERL_SCRIPT_MODE); |
9c12f1e5 RGS |
3609 | #ifdef FAKE_BIT_BUCKET |
3610 | if (memEQ(scriptname, FAKE_BIT_BUCKET_PREFIX, | |
3611 | sizeof(FAKE_BIT_BUCKET_PREFIX) - 1) | |
3612 | && strlen(scriptname) == sizeof(tmpname) - 1) { | |
3613 | unlink(scriptname); | |
3614 | } | |
3615 | scriptname = BIT_BUCKET; | |
3616 | #endif | |
1b24ed4b | 3617 | # if defined(HAS_FCNTL) && defined(F_SETFD) |
2f9285f8 | 3618 | if (*rsfpp) |
1b24ed4b | 3619 | /* ensure close-on-exec */ |
2f9285f8 | 3620 | fcntl(PerlIO_fileno(*rsfpp),F_SETFD,1); |
1b24ed4b | 3621 | # endif |
96436eeb | 3622 | } |
2f9285f8 | 3623 | if (!*rsfpp) { |
447218f8 | 3624 | /* PSz 16 Sep 03 Keep neat error message */ |
b1681ed3 RGS |
3625 | if (PL_e_script) |
3626 | Perl_croak(aTHX_ "Can't open "BIT_BUCKET": %s\n", Strerror(errno)); | |
3627 | else | |
3628 | Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n", | |
3629 | CopFILE(PL_curcop), Strerror(errno)); | |
13281fa4 | 3630 | } |
fdf5d70d | 3631 | return fdscript; |
79072805 | 3632 | } |
8d063cd8 | 3633 | |
7b89560d JH |
3634 | /* Mention |
3635 | * I_SYSSTATVFS HAS_FSTATVFS | |
3636 | * I_SYSMOUNT | |
c890dc6c | 3637 | * I_STATFS HAS_FSTATFS HAS_GETFSSTAT |
7b89560d JH |
3638 | * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT |
3639 | * here so that metaconfig picks them up. */ | |
3640 | ||
104d25b7 | 3641 | |
cc69b689 | 3642 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
ec2019ad | 3643 | /* Don't even need this function. */ |
cc69b689 | 3644 | #else |
ec2019ad NC |
3645 | STATIC void |
3646 | S_validate_suid(pTHX_ PerlIO *rsfp) | |
3647 | { | |
7918f24d NC |
3648 | PERL_ARGS_ASSERT_VALIDATE_SUID; |
3649 | ||
3280af22 | 3650 | if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */ |
a2e578da MHM |
3651 | dVAR; |
3652 | ||
2f9285f8 | 3653 | PerlLIO_fstat(PerlIO_fileno(rsfp),&PL_statbuf); /* may be either wrapped or real suid */ |
b28d0864 | 3654 | if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID) |
a687059c | 3655 | || |
b28d0864 | 3656 | (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID) |
a687059c | 3657 | ) |
b28d0864 | 3658 | if (!PL_do_undump) |
cea2e8a9 | 3659 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c | 3660 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
a687059c | 3661 | /* not set-id, must be wrapped */ |
a687059c | 3662 | } |
79072805 | 3663 | } |
cc69b689 | 3664 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ |
13281fa4 | 3665 | |
76e3520e | 3666 | STATIC void |
2f9285f8 | 3667 | S_find_beginning(pTHX_ SV* linestr_sv, PerlIO *rsfp) |
79072805 | 3668 | { |
97aff369 | 3669 | dVAR; |
c7030b81 | 3670 | const char *s; |
dd374669 | 3671 | register const char *s2; |
33b78306 | 3672 | |
7918f24d NC |
3673 | PERL_ARGS_ASSERT_FIND_BEGINNING; |
3674 | ||
33b78306 LW |
3675 | /* skip forward in input to the real script? */ |
3676 | ||
737c24fc | 3677 | do { |
2f9285f8 | 3678 | if ((s = sv_gets(linestr_sv, rsfp, 0)) == NULL) |
cea2e8a9 | 3679 | Perl_croak(aTHX_ "No Perl script found in input\n"); |
4f0c37ba | 3680 | s2 = s; |
737c24fc Z |
3681 | } while (!(*s == '#' && s[1] == '!' && ((s = instr(s,"perl")) || (s = instr(s2,"PERL"))))); |
3682 | PerlIO_ungetc(rsfp, '\n'); /* to keep line count right */ | |
3683 | while (*s && !(isSPACE (*s) || *s == '#')) s++; | |
3684 | s2 = s; | |
3685 | while (*s == ' ' || *s == '\t') s++; | |
3686 | if (*s++ == '-') { | |
3687 | while (isDIGIT(s2[-1]) || s2[-1] == '-' || s2[-1] == '.' | |
3688 | || s2[-1] == '_') s2--; | |
3689 | if (strnEQ(s2-4,"perl",4)) | |
3690 | while ((s = moreswitches(s))) | |
3691 | ; | |
83025b21 LW |
3692 | } |
3693 | } | |
3694 | ||
afe37c7d | 3695 | |
76e3520e | 3696 | STATIC void |
cea2e8a9 | 3697 | S_init_ids(pTHX) |
352d5a3a | 3698 | { |
97aff369 | 3699 | dVAR; |
d8eceb89 JH |
3700 | PL_uid = PerlProc_getuid(); |
3701 | PL_euid = PerlProc_geteuid(); | |
3702 | PL_gid = PerlProc_getgid(); | |
3703 | PL_egid = PerlProc_getegid(); | |
748a9306 | 3704 | #ifdef VMS |
b28d0864 NIS |
3705 | PL_uid |= PL_gid << 16; |
3706 | PL_euid |= PL_egid << 16; | |
748a9306 | 3707 | #endif |
22f7c9c9 JH |
3708 | /* Should not happen: */ |
3709 | CHECK_MALLOC_TAINT(PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
3280af22 | 3710 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
ae3f3efd PS |
3711 | /* BUG */ |
3712 | /* PSz 27 Feb 04 | |
3713 | * Should go by suidscript, not uid!=euid: why disallow | |
3714 | * system("ls") in scripts run from setuid things? | |
3715 | * Or, is this run before we check arguments and set suidscript? | |
3716 | * What about SETUID_SCRIPTS_ARE_SECURE_NOW: could we use fdscript then? | |
3717 | * (We never have suidscript, can we be sure to have fdscript?) | |
3718 | * Or must then go by UID checks? See comments in forbid_setid also. | |
3719 | */ | |
748a9306 | 3720 | } |
79072805 | 3721 | |
a0643315 JH |
3722 | /* This is used very early in the lifetime of the program, |
3723 | * before even the options are parsed, so PL_tainting has | |
b0891165 | 3724 | * not been initialized properly. */ |
af419de7 | 3725 | bool |
8f42b153 | 3726 | Perl_doing_taint(int argc, char *argv[], char *envp[]) |
22f7c9c9 | 3727 | { |
c3446a78 JH |
3728 | #ifndef PERL_IMPLICIT_SYS |
3729 | /* If we have PERL_IMPLICIT_SYS we can't call getuid() et alia | |
3730 | * before we have an interpreter-- and the whole point of this | |
3731 | * function is to be called at such an early stage. If you are on | |
3732 | * a system with PERL_IMPLICIT_SYS but you do have a concept of | |
3733 | * "tainted because running with altered effective ids', you'll | |
3734 | * have to add your own checks somewhere in here. The two most | |
3735 | * known samples of 'implicitness' are Win32 and NetWare, neither | |
3736 | * of which has much of concept of 'uids'. */ | |
af419de7 | 3737 | int uid = PerlProc_getuid(); |
22f7c9c9 | 3738 | int euid = PerlProc_geteuid(); |
af419de7 | 3739 | int gid = PerlProc_getgid(); |
22f7c9c9 | 3740 | int egid = PerlProc_getegid(); |
6867be6d | 3741 | (void)envp; |
22f7c9c9 JH |
3742 | |
3743 | #ifdef VMS | |
af419de7 | 3744 | uid |= gid << 16; |
22f7c9c9 JH |
3745 | euid |= egid << 16; |
3746 | #endif | |
3747 | if (uid && (euid != uid || egid != gid)) | |
3748 | return 1; | |
c3446a78 | 3749 | #endif /* !PERL_IMPLICIT_SYS */ |
af419de7 JH |
3750 | /* This is a really primitive check; environment gets ignored only |
3751 | * if -T are the first chars together; otherwise one gets | |
3752 | * "Too late" message. */ | |
22f7c9c9 JH |
3753 | if ( argc > 1 && argv[1][0] == '-' |
3754 | && (argv[1][1] == 't' || argv[1][1] == 'T') ) | |
3755 | return 1; | |
3756 | return 0; | |
3757 | } | |
22f7c9c9 | 3758 | |
d0bafe7e NC |
3759 | /* Passing the flag as a single char rather than a string is a slight space |
3760 | optimisation. The only message that isn't /^-.$/ is | |
3761 | "program input from stdin", which is substituted in place of '\0', which | |
3762 | could never be a command line flag. */ | |
76e3520e | 3763 | STATIC void |
f20b2998 | 3764 | S_forbid_setid(pTHX_ const char flag, const bool suidscript) /* g */ |
bbce6d69 | 3765 | { |
97aff369 | 3766 | dVAR; |
d0bafe7e NC |
3767 | char string[3] = "-x"; |
3768 | const char *message = "program input from stdin"; | |
3769 | ||
3770 | if (flag) { | |
3771 | string[1] = flag; | |
3772 | message = string; | |
3773 | } | |
3774 | ||
ae3f3efd | 3775 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
3280af22 | 3776 | if (PL_euid != PL_uid) |
d0bafe7e | 3777 | Perl_croak(aTHX_ "No %s allowed while running setuid", message); |
3280af22 | 3778 | if (PL_egid != PL_gid) |
d0bafe7e | 3779 | Perl_croak(aTHX_ "No %s allowed while running setgid", message); |
ae3f3efd | 3780 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ |
f20b2998 | 3781 | if (suidscript) |
d0bafe7e | 3782 | Perl_croak(aTHX_ "No %s allowed with (suid) fdscript", message); |
bbce6d69 | 3783 | } |
3784 | ||
1ee4443e | 3785 | void |
5b235299 NC |
3786 | Perl_init_dbargs(pTHX) |
3787 | { | |
3788 | AV *const args = PL_dbargs = GvAV(gv_AVadd((gv_fetchpvs("DB::args", | |
3789 | GV_ADDMULTI, | |
3790 | SVt_PVAV)))); | |
3791 | ||
3792 | if (AvREAL(args)) { | |
3793 | /* Someone has already created it. | |
3794 | It might have entries, and if we just turn off AvREAL(), they will | |
3795 | "leak" until global destruction. */ | |
3796 | av_clear(args); | |
3797 | } | |
3798 | AvREAL_off(PL_dbargs); /* XXX should be REIFY (see av.h) */ | |
3799 | } | |
3800 | ||
3801 | void | |
1ee4443e | 3802 | Perl_init_debugger(pTHX) |
748a9306 | 3803 | { |
97aff369 | 3804 | dVAR; |
c4420975 | 3805 | HV * const ostash = PL_curstash; |
1ee4443e | 3806 | |
3280af22 | 3807 | PL_curstash = PL_debstash; |
5b235299 NC |
3808 | |
3809 | Perl_init_dbargs(aTHX); | |
5c1737d1 NC |
3810 | PL_DBgv = gv_fetchpvs("DB::DB", GV_ADDMULTI, SVt_PVGV); |
3811 | PL_DBline = gv_fetchpvs("DB::dbline", GV_ADDMULTI, SVt_PVAV); | |
3812 | PL_DBsub = gv_HVadd(gv_fetchpvs("DB::sub", GV_ADDMULTI, SVt_PVHV)); | |
3813 | PL_DBsingle = GvSV((gv_fetchpvs("DB::single", GV_ADDMULTI, SVt_PV))); | |
4c0f30d6 NC |
3814 | if (!SvIOK(PL_DBsingle)) |
3815 | sv_setiv(PL_DBsingle, 0); | |
5c1737d1 | 3816 | PL_DBtrace = GvSV((gv_fetchpvs("DB::trace", GV_ADDMULTI, SVt_PV))); |
4c0f30d6 NC |
3817 | if (!SvIOK(PL_DBtrace)) |
3818 | sv_setiv(PL_DBtrace, 0); | |
5c1737d1 | 3819 | PL_DBsignal = GvSV((gv_fetchpvs("DB::signal", GV_ADDMULTI, SVt_PV))); |
4c0f30d6 NC |
3820 | if (!SvIOK(PL_DBsignal)) |
3821 | sv_setiv(PL_DBsignal, 0); | |
1ee4443e | 3822 | PL_curstash = ostash; |
352d5a3a LW |
3823 | } |
3824 | ||
2ce36478 SM |
3825 | #ifndef STRESS_REALLOC |
3826 | #define REASONABLE(size) (size) | |
3827 | #else | |
3828 | #define REASONABLE(size) (1) /* unreasonable */ | |
3829 | #endif | |
3830 | ||
11343788 | 3831 | void |
cea2e8a9 | 3832 | Perl_init_stacks(pTHX) |
79072805 | 3833 | { |
97aff369 | 3834 | dVAR; |
e336de0d | 3835 | /* start with 128-item stack and 8K cxstack */ |
3280af22 | 3836 | PL_curstackinfo = new_stackinfo(REASONABLE(128), |
e336de0d | 3837 | REASONABLE(8192/sizeof(PERL_CONTEXT) - 1)); |
3280af22 NIS |
3838 | PL_curstackinfo->si_type = PERLSI_MAIN; |
3839 | PL_curstack = PL_curstackinfo->si_stack; | |
3840 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ | |
79072805 | 3841 | |
3280af22 NIS |
3842 | PL_stack_base = AvARRAY(PL_curstack); |
3843 | PL_stack_sp = PL_stack_base; | |
3844 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
8990e307 | 3845 | |
a02a5408 | 3846 | Newx(PL_tmps_stack,REASONABLE(128),SV*); |
3280af22 NIS |
3847 | PL_tmps_floor = -1; |
3848 | PL_tmps_ix = -1; | |
3849 | PL_tmps_max = REASONABLE(128); | |
8990e307 | 3850 | |
a02a5408 | 3851 | Newx(PL_markstack,REASONABLE(32),I32); |
3280af22 NIS |
3852 | PL_markstack_ptr = PL_markstack; |
3853 | PL_markstack_max = PL_markstack + REASONABLE(32); | |
79072805 | 3854 | |
ce2f7c3b | 3855 | SET_MARK_OFFSET; |
e336de0d | 3856 | |
a02a5408 | 3857 | Newx(PL_scopestack,REASONABLE(32),I32); |
d343c3ef GG |
3858 | #ifdef DEBUGGING |
3859 | Newx(PL_scopestack_name,REASONABLE(32),const char*); | |
3860 | #endif | |
3280af22 NIS |
3861 | PL_scopestack_ix = 0; |
3862 | PL_scopestack_max = REASONABLE(32); | |
79072805 | 3863 | |
a02a5408 | 3864 | Newx(PL_savestack,REASONABLE(128),ANY); |
3280af22 NIS |
3865 | PL_savestack_ix = 0; |
3866 | PL_savestack_max = REASONABLE(128); | |
378cc40b | 3867 | } |
33b78306 | 3868 | |
2ce36478 SM |
3869 | #undef REASONABLE |
3870 | ||
76e3520e | 3871 | STATIC void |
cea2e8a9 | 3872 | S_nuke_stacks(pTHX) |
6e72f9df | 3873 | { |
97aff369 | 3874 | dVAR; |
3280af22 NIS |
3875 | while (PL_curstackinfo->si_next) |
3876 | PL_curstackinfo = PL_curstackinfo->si_next; | |
3877 | while (PL_curstackinfo) { | |
3878 | PERL_SI *p = PL_curstackinfo->si_prev; | |
bac4b2ad | 3879 | /* curstackinfo->si_stack got nuked by sv_free_arenas() */ |
3280af22 NIS |
3880 | Safefree(PL_curstackinfo->si_cxstack); |
3881 | Safefree(PL_curstackinfo); | |
3882 | PL_curstackinfo = p; | |
e336de0d | 3883 | } |
3280af22 NIS |
3884 | Safefree(PL_tmps_stack); |
3885 | Safefree(PL_markstack); | |
3886 | Safefree(PL_scopestack); | |
58780814 GG |
3887 | #ifdef DEBUGGING |
3888 | Safefree(PL_scopestack_name); | |
3889 | #endif | |
3280af22 | 3890 | Safefree(PL_savestack); |
378cc40b | 3891 | } |
33b78306 | 3892 | |
74e8ce34 NC |
3893 | void |
3894 | Perl_populate_isa(pTHX_ const char *name, STRLEN len, ...) | |
3895 | { | |
3896 | GV *const gv = gv_fetchpvn(name, len, GV_ADD | GV_ADDMULTI, SVt_PVAV); | |
3897 | AV *const isa = GvAVn(gv); | |
3898 | va_list args; | |
3899 | ||
3900 | PERL_ARGS_ASSERT_POPULATE_ISA; | |
3901 | ||
3902 | if(AvFILLp(isa) != -1) | |
3903 | return; | |
3904 | ||
3905 | /* NOTE: No support for tied ISA */ | |
3906 | ||
3907 | va_start(args, len); | |
3908 | do { | |
3909 | const char *const parent = va_arg(args, const char*); | |
3910 | size_t parent_len; | |
3911 | ||
3912 | if (!parent) | |
3913 | break; | |
3914 | parent_len = va_arg(args, size_t); | |
3915 | ||
3916 | /* Arguments are supplied with a trailing :: */ | |
3917 | assert(parent_len > 2); | |
3918 | assert(parent[parent_len - 1] == ':'); | |
3919 | assert(parent[parent_len - 2] == ':'); | |
3920 | av_push(isa, newSVpvn(parent, parent_len - 2)); | |
3921 | (void) gv_fetchpvn(parent, parent_len, GV_ADD, SVt_PVGV); | |
3922 | } while (1); | |
3923 | va_end(args); | |
3924 | } | |
3925 | ||
8990e307 | 3926 | |
76e3520e | 3927 | STATIC void |
cea2e8a9 | 3928 | S_init_predump_symbols(pTHX) |
45d8adaa | 3929 | { |
97aff369 | 3930 | dVAR; |
93a17b20 | 3931 | GV *tmpgv; |
af8c498a | 3932 | IO *io; |
79072805 | 3933 | |
64ace3f8 | 3934 | sv_setpvs(get_sv("\"", GV_ADD), " "); |
e23d9e2f CS |
3935 | PL_ofsgv = (GV*)SvREFCNT_inc(gv_fetchpvs(",", GV_ADD|GV_NOTQUAL, SVt_PV)); |
3936 | ||
d963bf01 NC |
3937 | |
3938 | /* Historically, PVIOs were blessed into IO::Handle, unless | |
3939 | FileHandle was loaded, in which case they were blessed into | |
3940 | that. Action at a distance. | |
3941 | However, if we simply bless into IO::Handle, we break code | |
3942 | that assumes that PVIOs will have (among others) a seek | |
3943 | method. IO::File inherits from IO::Handle and IO::Seekable, | |
3944 | and provides the needed methods. But if we simply bless into | |
3945 | it, then we break code that assumed that by loading | |
3946 | IO::Handle, *it* would work. | |
3947 | So a compromise is to set up the correct @IO::File::ISA, | |
3948 | so that code that does C<use IO::Handle>; will still work. | |
3949 | */ | |
3950 | ||
74e8ce34 NC |
3951 | Perl_populate_isa(aTHX_ STR_WITH_LEN("IO::File::ISA"), |
3952 | STR_WITH_LEN("IO::Handle::"), | |
3953 | STR_WITH_LEN("IO::Seekable::"), | |
3954 | STR_WITH_LEN("Exporter::"), | |
3955 | NULL); | |
d963bf01 | 3956 | |
fafc274c | 3957 | PL_stdingv = gv_fetchpvs("STDIN", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
3280af22 | 3958 | GvMULTI_on(PL_stdingv); |
af8c498a | 3959 | io = GvIOp(PL_stdingv); |
a04651f4 | 3960 | IoTYPE(io) = IoTYPE_RDONLY; |
af8c498a | 3961 | IoIFP(io) = PerlIO_stdin(); |
fafc274c | 3962 | tmpgv = gv_fetchpvs("stdin", GV_ADD|GV_NOTQUAL, SVt_PV); |
a5f75d66 | 3963 | GvMULTI_on(tmpgv); |
a45c7426 | 3964 | GvIOp(tmpgv) = MUTABLE_IO(SvREFCNT_inc_simple(io)); |
79072805 | 3965 | |
fafc274c | 3966 | tmpgv = gv_fetchpvs("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
a5f75d66 | 3967 | GvMULTI_on(tmpgv); |
af8c498a | 3968 | io = GvIOp(tmpgv); |
a04651f4 | 3969 | IoTYPE(io) = IoTYPE_WRONLY; |
af8c498a | 3970 | IoOFP(io) = IoIFP(io) = PerlIO_stdout(); |
4633a7c4 | 3971 | setdefout(tmpgv); |
fafc274c | 3972 | tmpgv = gv_fetchpvs("stdout", GV_ADD|GV_NOTQUAL, SVt_PV); |
a5f75d66 | 3973 | GvMULTI_on(tmpgv); |
a45c7426 | 3974 | GvIOp(tmpgv) = MUTABLE_IO(SvREFCNT_inc_simple(io)); |
79072805 | 3975 | |
fafc274c | 3976 | PL_stderrgv = gv_fetchpvs("STDERR", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
bf49b057 GS |
3977 | GvMULTI_on(PL_stderrgv); |
3978 | io = GvIOp(PL_stderrgv); | |
a04651f4 | 3979 | IoTYPE(io) = IoTYPE_WRONLY; |
af8c498a | 3980 | IoOFP(io) = IoIFP(io) = PerlIO_stderr(); |
fafc274c | 3981 | tmpgv = gv_fetchpvs("stderr", GV_ADD|GV_NOTQUAL, SVt_PV); |
a5f75d66 | 3982 | GvMULTI_on(tmpgv); |
a45c7426 | 3983 | GvIOp(tmpgv) = MUTABLE_IO(SvREFCNT_inc_simple(io)); |
79072805 | 3984 | |
561b68a9 | 3985 | PL_statname = newSV(0); /* last filename we did stat on */ |
79072805 | 3986 | } |
33b78306 | 3987 | |
a11ec5a9 | 3988 | void |
8f42b153 | 3989 | Perl_init_argv_symbols(pTHX_ register int argc, register char **argv) |
33b78306 | 3990 | { |
97aff369 | 3991 | dVAR; |
7918f24d NC |
3992 | |
3993 | PERL_ARGS_ASSERT_INIT_ARGV_SYMBOLS; | |
3994 | ||
79072805 | 3995 | argc--,argv++; /* skip name of script */ |
3280af22 | 3996 | if (PL_doswitches) { |
79072805 | 3997 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
aec46f14 | 3998 | char *s; |
79072805 LW |
3999 | if (!argv[0][1]) |
4000 | break; | |
379d538a | 4001 | if (argv[0][1] == '-' && !argv[0][2]) { |
79072805 LW |
4002 | argc--,argv++; |
4003 | break; | |
4004 | } | |
155aba94 | 4005 | if ((s = strchr(argv[0], '='))) { |
b3d904f3 NC |
4006 | const char *const start_name = argv[0] + 1; |
4007 | sv_setpv(GvSV(gv_fetchpvn_flags(start_name, s - start_name, | |
4008 | TRUE, SVt_PV)), s + 1); | |
79072805 LW |
4009 | } |
4010 | else | |
71315bf2 | 4011 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1, GV_ADD, SVt_PV)),1); |
fe14fcc3 | 4012 | } |
79072805 | 4013 | } |
fafc274c | 4014 | if ((PL_argvgv = gv_fetchpvs("ARGV", GV_ADD|GV_NOTQUAL, SVt_PVAV))) { |
a11ec5a9 RGS |
4015 | GvMULTI_on(PL_argvgv); |
4016 | (void)gv_AVadd(PL_argvgv); | |
4017 | av_clear(GvAVn(PL_argvgv)); | |
4018 | for (; argc > 0; argc--,argv++) { | |
aec46f14 | 4019 | SV * const sv = newSVpv(argv[0],0); |
a11ec5a9 | 4020 | av_push(GvAVn(PL_argvgv),sv); |
ce81ff12 JH |
4021 | if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) { |
4022 | if (PL_unicode & PERL_UNICODE_ARGV_FLAG) | |
4023 | SvUTF8_on(sv); | |
4024 | } | |
a05d7ebb JH |
4025 | if (PL_unicode & PERL_UNICODE_WIDESYSCALLS_FLAG) /* Sarathy? */ |
4026 | (void)sv_utf8_decode(sv); | |
a11ec5a9 RGS |
4027 | } |
4028 | } | |
4029 | } | |
4030 | ||
4031 | STATIC void | |
4032 | S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env) | |
4033 | { | |
27da23d5 | 4034 | dVAR; |
a11ec5a9 | 4035 | GV* tmpgv; |
a11ec5a9 | 4036 | |
7918f24d NC |
4037 | PERL_ARGS_ASSERT_INIT_POSTDUMP_SYMBOLS; |
4038 | ||
b9f83d2f | 4039 | PL_toptarget = newSV_type(SVt_PVFM); |
76f68e9b | 4040 | sv_setpvs(PL_toptarget, ""); |
b9f83d2f | 4041 | PL_bodytarget = newSV_type(SVt_PVFM); |
76f68e9b | 4042 | sv_setpvs(PL_bodytarget, ""); |
3280af22 | 4043 | PL_formtarget = PL_bodytarget; |
79072805 | 4044 | |
bbce6d69 | 4045 | TAINT; |
a11ec5a9 RGS |
4046 | |
4047 | init_argv_symbols(argc,argv); | |
4048 | ||
fafc274c | 4049 | if ((tmpgv = gv_fetchpvs("0", GV_ADD|GV_NOTQUAL, SVt_PV))) { |
3280af22 | 4050 | sv_setpv(GvSV(tmpgv),PL_origfilename); |
79072805 | 4051 | } |
fafc274c | 4052 | if ((PL_envgv = gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV))) { |
79072805 | 4053 | HV *hv; |
e17132c1 | 4054 | bool env_is_not_environ; |
3280af22 NIS |
4055 | GvMULTI_on(PL_envgv); |
4056 | hv = GvHVn(PL_envgv); | |
a0714e2c | 4057 | hv_magic(hv, NULL, PERL_MAGIC_env); |
2f42fcb0 | 4058 | #ifndef PERL_MICRO |
fa6a1c44 | 4059 | #ifdef USE_ENVIRON_ARRAY |
4633a7c4 LW |
4060 | /* Note that if the supplied env parameter is actually a copy |
4061 | of the global environ then it may now point to free'd memory | |
4062 | if the environment has been modified since. To avoid this | |
4063 | problem we treat env==NULL as meaning 'use the default' | |
4064 | */ | |
4065 | if (!env) | |
4066 | env = environ; | |
e17132c1 JD |
4067 | env_is_not_environ = env != environ; |
4068 | if (env_is_not_environ | |
4efc5df6 GS |
4069 | # ifdef USE_ITHREADS |
4070 | && PL_curinterp == aTHX | |
4071 | # endif | |
4072 | ) | |
4073 | { | |
bd61b366 | 4074 | environ[0] = NULL; |
4efc5df6 | 4075 | } |
9b4eeda5 | 4076 | if (env) { |
9d27dca9 | 4077 | char *s, *old_var; |
27da23d5 | 4078 | SV *sv; |
764df951 | 4079 | for (; *env; env++) { |
9d27dca9 MT |
4080 | old_var = *env; |
4081 | ||
4082 | if (!(s = strchr(old_var,'=')) || s == old_var) | |
79072805 | 4083 | continue; |
9d27dca9 | 4084 | |
7da0e383 | 4085 | #if defined(MSDOS) && !defined(DJGPP) |
61968511 | 4086 | *s = '\0'; |
9d27dca9 | 4087 | (void)strupr(old_var); |
61968511 | 4088 | *s = '='; |
137443ea | 4089 | #endif |
61968511 | 4090 | sv = newSVpv(s+1, 0); |
9d27dca9 | 4091 | (void)hv_store(hv, old_var, s - old_var, sv, 0); |
e17132c1 | 4092 | if (env_is_not_environ) |
61968511 | 4093 | mg_set(sv); |
764df951 | 4094 | } |
9b4eeda5 | 4095 | } |
103a7189 | 4096 | #endif /* USE_ENVIRON_ARRAY */ |
2f42fcb0 | 4097 | #endif /* !PERL_MICRO */ |
79072805 | 4098 | } |
bbce6d69 | 4099 | TAINT_NOT; |
fafc274c | 4100 | if ((tmpgv = gv_fetchpvs("$", GV_ADD|GV_NOTQUAL, SVt_PV))) { |
306196c3 | 4101 | SvREADONLY_off(GvSV(tmpgv)); |
7766f137 | 4102 | sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid()); |
306196c3 MS |
4103 | SvREADONLY_on(GvSV(tmpgv)); |
4104 | } | |
4d76a344 RGS |
4105 | #ifdef THREADS_HAVE_PIDS |
4106 | PL_ppid = (IV)getppid(); | |
4107 | #endif | |
2710853f MJD |
4108 | |
4109 | /* touch @F array to prevent spurious warnings 20020415 MJD */ | |
4110 | if (PL_minus_a) { | |
cbfd0a87 | 4111 | (void) get_av("main::F", GV_ADD | GV_ADDMULTI); |
2710853f | 4112 | } |
33b78306 | 4113 | } |
34de22dd | 4114 | |
76e3520e | 4115 | STATIC void |
2cace6ac | 4116 | S_init_perllib(pTHX) |
34de22dd | 4117 | { |
97aff369 | 4118 | dVAR; |
32910c7a | 4119 | #ifndef VMS |
929e5b34 | 4120 | const char *perl5lib = NULL; |
32910c7a | 4121 | #endif |
35ba5ce9 | 4122 | const char *s; |
a7560424 | 4123 | #if defined(WIN32) && !defined(PERL_IS_MINIPERL) |
e6a0bbf8 NC |
4124 | STRLEN len; |
4125 | #endif | |
4126 | ||
3280af22 | 4127 | if (!PL_tainting) { |
552a7a9b | 4128 | #ifndef VMS |
32910c7a | 4129 | perl5lib = PerlEnv_getenv("PERL5LIB"); |
88f5bc07 AB |
4130 | /* |
4131 | * It isn't possible to delete an environment variable with | |
42a3dd3a RGS |
4132 | * PERL_USE_SAFE_PUTENV set unless unsetenv() is also available, so in that |
4133 | * case we treat PERL5LIB as undefined if it has a zero-length value. | |
88f5bc07 AB |
4134 | */ |
4135 | #if defined(PERL_USE_SAFE_PUTENV) && ! defined(HAS_UNSETENV) | |
32910c7a | 4136 | if (perl5lib && *perl5lib != '\0') |
88f5bc07 | 4137 | #else |
32910c7a | 4138 | if (perl5lib) |
88f5bc07 | 4139 | #endif |
32910c7a | 4140 | incpush_use_sep(perl5lib, 0, INCPUSH_ADD_SUB_DIRS); |
2cace6ac | 4141 | else { |
4705144d NC |
4142 | s = PerlEnv_getenv("PERLLIB"); |
4143 | if (s) | |
50d61629 | 4144 | incpush_use_sep(s, 0, 0); |
4705144d | 4145 | } |
552a7a9b | 4146 | #else /* VMS */ |
4147 | /* Treat PERL5?LIB as a possible search list logical name -- the | |
4148 | * "natural" VMS idiom for a Unix path string. We allow each | |
4149 | * element to be a set of |-separated directories for compatibility. | |
4150 | */ | |
4151 | char buf[256]; | |
4152 | int idx = 0; | |
4153 | if (my_trnlnm("PERL5LIB",buf,0)) | |
e28f3139 | 4154 | do { |
2cace6ac | 4155 | incpush_use_sep(buf, 0, INCPUSH_ADD_SUB_DIRS); |
e28f3139 | 4156 | } while (my_trnlnm("PERL5LIB",buf,++idx)); |
f05b5874 | 4157 | else { |
e28f3139 | 4158 | while (my_trnlnm("PERLLIB",buf,idx++)) |
50d61629 | 4159 | incpush_use_sep(buf, 0, 0); |
f05b5874 | 4160 | } |
552a7a9b | 4161 | #endif /* VMS */ |
85e6fe83 | 4162 | } |
34de22dd | 4163 | |
b0e687f7 NC |
4164 | #ifndef PERL_IS_MINIPERL |
4165 | /* miniperl gets just -I..., the split of $ENV{PERL5LIB}, and "." in @INC | |
4166 | (and not the architecture specific directories from $ENV{PERL5LIB}) */ | |
4167 | ||
c90c0ff4 | 4168 | /* Use the ~-expanded versions of APPLLIB (undocumented), |
826e305c | 4169 | SITEARCH, SITELIB, VENDORARCH, VENDORLIB, ARCHLIB and PRIVLIB |
df5cef82 | 4170 | */ |
4633a7c4 | 4171 | #ifdef APPLLIB_EXP |
be71fc8f NC |
4172 | S_incpush_use_sep(aTHX_ STR_WITH_LEN(APPLLIB_EXP), |
4173 | INCPUSH_ADD_SUB_DIRS|INCPUSH_CAN_RELOCATE); | |
16d20bd9 | 4174 | #endif |
4633a7c4 | 4175 | |
65f19062 | 4176 | #ifdef SITEARCH_EXP |
3b290362 GS |
4177 | /* sitearch is always relative to sitelib on Windows for |
4178 | * DLL-based path intuition to work correctly */ | |
4179 | # if !defined(WIN32) | |
be71fc8f NC |
4180 | S_incpush_use_sep(aTHX_ STR_WITH_LEN(SITEARCH_EXP), |
4181 | INCPUSH_CAN_RELOCATE); | |
65f19062 GS |
4182 | # endif |
4183 | #endif | |
4184 | ||
4633a7c4 | 4185 | #ifdef SITELIB_EXP |
65f19062 | 4186 | # if defined(WIN32) |
574c798a | 4187 | /* this picks up sitearch as well */ |
e6a0bbf8 | 4188 | s = win32_get_sitelib(PERL_FS_VERSION, &len); |
1fa74d9f | 4189 | if (s) |
e6a0bbf8 | 4190 | incpush_use_sep(s, len, INCPUSH_ADD_SUB_DIRS|INCPUSH_CAN_RELOCATE); |
65f19062 | 4191 | # else |
50d61629 | 4192 | S_incpush_use_sep(aTHX_ STR_WITH_LEN(SITELIB_EXP), INCPUSH_CAN_RELOCATE); |
65f19062 GS |
4193 | # endif |
4194 | #endif | |
189d1e8d | 4195 | |
65f19062 | 4196 | #ifdef PERL_VENDORARCH_EXP |
4ea817c6 | 4197 | /* vendorarch is always relative to vendorlib on Windows for |
3b290362 GS |
4198 | * DLL-based path intuition to work correctly */ |
4199 | # if !defined(WIN32) | |
be71fc8f NC |
4200 | S_incpush_use_sep(aTHX_ STR_WITH_LEN(PERL_VENDORARCH_EXP), |
4201 | INCPUSH_CAN_RELOCATE); | |
65f19062 | 4202 | # endif |
4b03c463 | 4203 | #endif |
65f19062 GS |
4204 | |
4205 | #ifdef PERL_VENDORLIB_EXP | |
4206 | # if defined(WIN32) | |
e28f3139 | 4207 | /* this picks up vendorarch as well */ |
e6a0bbf8 | 4208 | s = win32_get_vendorlib(PERL_FS_VERSION, &len); |
1fa74d9f | 4209 | if (s) |
e6a0bbf8 | 4210 | incpush_use_sep(s, len, INCPUSH_ADD_SUB_DIRS|INCPUSH_CAN_RELOCATE); |
65f19062 | 4211 | # else |
be71fc8f NC |
4212 | S_incpush_use_sep(aTHX_ STR_WITH_LEN(PERL_VENDORLIB_EXP), |
4213 | INCPUSH_CAN_RELOCATE); | |
65f19062 | 4214 | # endif |
a3635516 | 4215 | #endif |
65f19062 | 4216 | |
b9ba2fad | 4217 | #ifdef ARCHLIB_EXP |
2cace6ac | 4218 | S_incpush_use_sep(aTHX_ STR_WITH_LEN(ARCHLIB_EXP), INCPUSH_CAN_RELOCATE); |
b9ba2fad NC |
4219 | #endif |
4220 | ||
4221 | #ifndef PRIVLIB_EXP | |
4222 | # define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" | |
4223 | #endif | |
4224 | ||
4225 | #if defined(WIN32) | |
2cace6ac NC |
4226 | s = win32_get_privlib(PERL_FS_VERSION, &len); |
4227 | if (s) | |
4228 | incpush_use_sep(s, len, INCPUSH_ADD_SUB_DIRS|INCPUSH_CAN_RELOCATE); | |
b9ba2fad | 4229 | #else |
04c9eecc | 4230 | # ifdef NETWARE |
2cace6ac | 4231 | S_incpush_use_sep(aTHX_ PRIVLIB_EXP, 0, INCPUSH_CAN_RELOCATE); |
04c9eecc | 4232 | # else |
2cace6ac | 4233 | S_incpush_use_sep(aTHX_ STR_WITH_LEN(PRIVLIB_EXP), INCPUSH_CAN_RELOCATE); |
04c9eecc | 4234 | # endif |
b9ba2fad NC |
4235 | #endif |
4236 | ||
3b777bb4 | 4237 | #ifdef PERL_OTHERLIBDIRS |
1e3208d8 NC |
4238 | S_incpush_use_sep(aTHX_ STR_WITH_LEN(PERL_OTHERLIBDIRS), |
4239 | INCPUSH_ADD_VERSIONED_SUB_DIRS|INCPUSH_NOT_BASEDIR | |
2cace6ac NC |
4240 | |INCPUSH_CAN_RELOCATE); |
4241 | #endif | |
2cace6ac NC |
4242 | |
4243 | if (!PL_tainting) { | |
4244 | #ifndef VMS | |
2cace6ac NC |
4245 | /* |
4246 | * It isn't possible to delete an environment variable with | |
4247 | * PERL_USE_SAFE_PUTENV set unless unsetenv() is also available, so in that | |
4248 | * case we treat PERL5LIB as undefined if it has a zero-length value. | |
4249 | */ | |
4250 | #if defined(PERL_USE_SAFE_PUTENV) && ! defined(HAS_UNSETENV) | |
32910c7a | 4251 | if (perl5lib && *perl5lib != '\0') |
2cace6ac | 4252 | #else |
32910c7a | 4253 | if (perl5lib) |
2cace6ac | 4254 | #endif |
32910c7a NC |
4255 | incpush_use_sep(perl5lib, 0, |
4256 | INCPUSH_ADD_OLD_VERS|INCPUSH_NOT_BASEDIR); | |
2cace6ac NC |
4257 | #else /* VMS */ |
4258 | /* Treat PERL5?LIB as a possible search list logical name -- the | |
4259 | * "natural" VMS idiom for a Unix path string. We allow each | |
4260 | * element to be a set of |-separated directories for compatibility. | |
4261 | */ | |
4262 | char buf[256]; | |
4263 | int idx = 0; | |
4264 | if (my_trnlnm("PERL5LIB",buf,0)) | |
4265 | do { | |
be71fc8f NC |
4266 | incpush_use_sep(buf, 0, |
4267 | INCPUSH_ADD_OLD_VERS|INCPUSH_NOT_BASEDIR); | |
2cace6ac NC |
4268 | } while (my_trnlnm("PERL5LIB",buf,++idx)); |
4269 | #endif /* VMS */ | |
a26c0e28 | 4270 | } |
2cace6ac NC |
4271 | |
4272 | /* Use the ~-expanded versions of APPLLIB (undocumented), | |
826e305c | 4273 | SITELIB and VENDORLIB for older versions |
2cace6ac NC |
4274 | */ |
4275 | #ifdef APPLLIB_EXP | |
be71fc8f NC |
4276 | S_incpush_use_sep(aTHX_ STR_WITH_LEN(APPLLIB_EXP), INCPUSH_ADD_OLD_VERS |
4277 | |INCPUSH_NOT_BASEDIR|INCPUSH_CAN_RELOCATE); | |
2cace6ac NC |
4278 | #endif |
4279 | ||
2cace6ac NC |
4280 | #if defined(SITELIB_STEM) && defined(PERL_INC_VERSION_LIST) |
4281 | /* Search for version-specific dirs below here */ | |
be71fc8f NC |
4282 | S_incpush_use_sep(aTHX_ STR_WITH_LEN(SITELIB_STEM), |
4283 | INCPUSH_ADD_OLD_VERS|INCPUSH_CAN_RELOCATE); | |
2cace6ac NC |
4284 | #endif |
4285 | ||
4286 | ||
4287 | #if defined(PERL_VENDORLIB_STEM) && defined(PERL_INC_VERSION_LIST) | |
4288 | /* Search for version-specific dirs below here */ | |
be71fc8f NC |
4289 | S_incpush_use_sep(aTHX_ STR_WITH_LEN(PERL_VENDORLIB_STEM), |
4290 | INCPUSH_ADD_OLD_VERS|INCPUSH_CAN_RELOCATE); | |
2cace6ac NC |
4291 | #endif |
4292 | ||
4293 | #ifdef PERL_OTHERLIBDIRS | |
1e3208d8 NC |
4294 | S_incpush_use_sep(aTHX_ STR_WITH_LEN(PERL_OTHERLIBDIRS), |
4295 | INCPUSH_ADD_OLD_VERS|INCPUSH_ADD_ARCHONLY_SUB_DIRS | |
4296 | |INCPUSH_CAN_RELOCATE); | |
3b777bb4 | 4297 | #endif |
b0e687f7 | 4298 | #endif /* !PERL_IS_MINIPERL */ |
3b777bb4 | 4299 | |
2cace6ac | 4300 | if (!PL_tainting) |
55b4bc1c | 4301 | S_incpush(aTHX_ STR_WITH_LEN("."), 0); |
774d564b | 4302 | } |
4303 | ||
a0fd4948 | 4304 | #if defined(DOSISH) || defined(EPOC) || defined(__SYMBIAN32__) |
774d564b | 4305 | # define PERLLIB_SEP ';' |
4306 | #else | |
4307 | # if defined(VMS) | |
4308 | # define PERLLIB_SEP '|' | |
4309 | # else | |
e37778c2 | 4310 | # define PERLLIB_SEP ':' |
774d564b | 4311 | # endif |
4312 | #endif | |
4313 | #ifndef PERLLIB_MANGLE | |
4314 | # define PERLLIB_MANGLE(s,n) (s) | |
ac27b0f5 | 4315 | #endif |
774d564b | 4316 | |
ad17a1ae NC |
4317 | /* Push a directory onto @INC if it exists. |
4318 | Generate a new SV if we do this, to save needing to copy the SV we push | |
4319 | onto @INC */ | |
4320 | STATIC SV * | |
7ffdaae6 | 4321 | S_incpush_if_exists(pTHX_ AV *const av, SV *dir, SV *const stem) |
ad17a1ae | 4322 | { |
97aff369 | 4323 | dVAR; |
ad17a1ae | 4324 | Stat_t tmpstatbuf; |
7918f24d NC |
4325 | |
4326 | PERL_ARGS_ASSERT_INCPUSH_IF_EXISTS; | |
4327 | ||
848ef955 | 4328 | if (PerlLIO_stat(SvPVX_const(dir), &tmpstatbuf) >= 0 && |
ad17a1ae | 4329 | S_ISDIR(tmpstatbuf.st_mode)) { |
3a9a9ba7 | 4330 | av_push(av, dir); |
7ffdaae6 NC |
4331 | dir = newSVsv(stem); |
4332 | } else { | |
4333 | /* Truncate dir back to stem. */ | |
4334 | SvCUR_set(dir, SvCUR(stem)); | |
ad17a1ae NC |
4335 | } |
4336 | return dir; | |
4337 | } | |
4338 | ||
76e3520e | 4339 | STATIC void |
55b4bc1c | 4340 | S_incpush(pTHX_ const char *const dir, STRLEN len, U32 flags) |
774d564b | 4341 | { |
97aff369 | 4342 | dVAR; |
7fc73107 | 4343 | const U8 using_sub_dirs |
1e3208d8 NC |
4344 | = (U8)flags & (INCPUSH_ADD_VERSIONED_SUB_DIRS |
4345 | |INCPUSH_ADD_ARCHONLY_SUB_DIRS|INCPUSH_ADD_OLD_VERS); | |
4346 | const U8 add_versioned_sub_dirs | |
4347 | = (U8)flags & INCPUSH_ADD_VERSIONED_SUB_DIRS; | |
4348 | const U8 add_archonly_sub_dirs | |
4349 | = (U8)flags & INCPUSH_ADD_ARCHONLY_SUB_DIRS; | |
6df20272 | 4350 | #ifdef PERL_INC_VERSION_LIST |
6434436b | 4351 | const U8 addoldvers = (U8)flags & INCPUSH_ADD_OLD_VERS; |
6df20272 | 4352 | #endif |
6434436b NC |
4353 | const U8 canrelocate = (U8)flags & INCPUSH_CAN_RELOCATE; |
4354 | const U8 unshift = (U8)flags & INCPUSH_UNSHIFT; | |
a26c0e28 | 4355 | const U8 push_basedir = (flags & INCPUSH_NOT_BASEDIR) ? 0 : 1; |
08d0d8ab | 4356 | AV *const inc = GvAVn(PL_incgv); |
774d564b | 4357 | |
08d0d8ab NC |
4358 | PERL_ARGS_ASSERT_INCPUSH; |
4359 | assert(len > 0); | |
3a9a9ba7 | 4360 | |
08d0d8ab NC |
4361 | /* Could remove this vestigial extra block, if we don't mind a lot of |
4362 | re-indenting diff noise. */ | |
55b4bc1c NC |
4363 | { |
4364 | SV *libdir; | |
3a9a9ba7 NC |
4365 | /* Change 20189146be79a0596543441fa369c6bf7f85103f, to fix RT#6665, |
4366 | arranged to unshift #! line -I onto the front of @INC. However, | |
4367 | -I can add version and architecture specific libraries, and they | |
4368 | need to go first. The old code assumed that it was always | |
4369 | pushing. Hence to make it work, need to push the architecture | |
4370 | (etc) libraries onto a temporary array, then "unshift" that onto | |
4371 | the front of @INC. */ | |
7fc73107 | 4372 | AV *const av = (using_sub_dirs) ? (unshift ? newAV() : inc) : NULL; |
774d564b | 4373 | |
55b4bc1c NC |
4374 | if (len) { |
4375 | /* I am not convinced that this is valid when PERLLIB_MANGLE is | |
4376 | defined to so something (in os2/os2.c), but the code has been | |
4377 | this way, ignoring any possible changed of length, since | |
4378 | 760ac839baf413929cd31cc32ffd6dba6b781a81 (5.003_02) so I'll leave | |
4379 | it be. */ | |
4380 | libdir = newSVpvn(PERLLIB_MANGLE(dir, len), len); | |
4381 | } else { | |
4382 | libdir = newSVpv(PERLLIB_MANGLE(dir, 0), 0); | |
774d564b | 4383 | } |
4384 | ||
dd374669 AL |
4385 | /* Do the if() outside the #ifdef to avoid warnings about an unused |
4386 | parameter. */ | |
4387 | if (canrelocate) { | |
88fe16b2 NC |
4388 | #ifdef PERL_RELOCATABLE_INC |
4389 | /* | |
4390 | * Relocatable include entries are marked with a leading .../ | |
4391 | * | |
4392 | * The algorithm is | |
4393 | * 0: Remove that leading ".../" | |
4394 | * 1: Remove trailing executable name (anything after the last '/') | |
4395 | * from the perl path to give a perl prefix | |
4396 | * Then | |
4397 | * While the @INC element starts "../" and the prefix ends with a real | |
4398 | * directory (ie not . or ..) chop that real directory off the prefix | |
4399 | * and the leading "../" from the @INC element. ie a logical "../" | |
4400 | * cleanup | |
4401 | * Finally concatenate the prefix and the remainder of the @INC element | |
4402 | * The intent is that /usr/local/bin/perl and .../../lib/perl5 | |
4403 | * generates /usr/local/lib/perl5 | |
4404 | */ | |
890ce7af | 4405 | const char *libpath = SvPVX(libdir); |
88fe16b2 NC |
4406 | STRLEN libpath_len = SvCUR(libdir); |
4407 | if (libpath_len >= 4 && memEQ (libpath, ".../", 4)) { | |
4408 | /* Game on! */ | |
890ce7af | 4409 | SV * const caret_X = get_sv("\030", 0); |
88fe16b2 NC |
4410 | /* Going to use the SV just as a scratch buffer holding a C |
4411 | string: */ | |
4412 | SV *prefix_sv; | |
4413 | char *prefix; | |
4414 | char *lastslash; | |
4415 | ||
4416 | /* $^X is *the* source of taint if tainting is on, hence | |
4417 | SvPOK() won't be true. */ | |
4418 | assert(caret_X); | |
4419 | assert(SvPOKp(caret_X)); | |
a663657d NC |
4420 | prefix_sv = newSVpvn_flags(SvPVX(caret_X), SvCUR(caret_X), |
4421 | SvUTF8(caret_X)); | |
88fe16b2 NC |
4422 | /* Firstly take off the leading .../ |
4423 | If all else fail we'll do the paths relative to the current | |
4424 | directory. */ | |
4425 | sv_chop(libdir, libpath + 4); | |
4426 | /* Don't use SvPV as we're intentionally bypassing taining, | |
4427 | mortal copies that the mg_get of tainting creates, and | |
4428 | corruption that seems to come via the save stack. | |
4429 | I guess that the save stack isn't correctly set up yet. */ | |
4430 | libpath = SvPVX(libdir); | |
4431 | libpath_len = SvCUR(libdir); | |
4432 | ||
4433 | /* This would work more efficiently with memrchr, but as it's | |
4434 | only a GNU extension we'd need to probe for it and | |
4435 | implement our own. Not hard, but maybe not worth it? */ | |
4436 | ||
4437 | prefix = SvPVX(prefix_sv); | |
4438 | lastslash = strrchr(prefix, '/'); | |
4439 | ||
4440 | /* First time in with the *lastslash = '\0' we just wipe off | |
4441 | the trailing /perl from (say) /usr/foo/bin/perl | |
4442 | */ | |
4443 | if (lastslash) { | |
4444 | SV *tempsv; | |
4445 | while ((*lastslash = '\0'), /* Do that, come what may. */ | |
4446 | (libpath_len >= 3 && memEQ(libpath, "../", 3) | |
4447 | && (lastslash = strrchr(prefix, '/')))) { | |
4448 | if (lastslash[1] == '\0' | |
4449 | || (lastslash[1] == '.' | |
4450 | && (lastslash[2] == '/' /* ends "/." */ | |
4451 | || (lastslash[2] == '/' | |
4452 | && lastslash[3] == '/' /* or "/.." */ | |
4453 | )))) { | |
4454 | /* Prefix ends "/" or "/." or "/..", any of which | |
4455 | are fishy, so don't do any more logical cleanup. | |
4456 | */ | |
4457 | break; | |
4458 | } | |
4459 | /* Remove leading "../" from path */ | |
4460 | libpath += 3; | |
4461 | libpath_len -= 3; | |
4462 | /* Next iteration round the loop removes the last | |
4463 | directory name from prefix by writing a '\0' in | |
4464 | the while clause. */ | |
4465 | } | |
4466 | /* prefix has been terminated with a '\0' to the correct | |
4467 | length. libpath points somewhere into the libdir SV. | |
4468 | We need to join the 2 with '/' and drop the result into | |
4469 | libdir. */ | |
4470 | tempsv = Perl_newSVpvf(aTHX_ "%s/%s", prefix, libpath); | |
4471 | SvREFCNT_dec(libdir); | |
4472 | /* And this is the new libdir. */ | |
4473 | libdir = tempsv; | |
4474 | if (PL_tainting && | |
4475 | (PL_uid != PL_euid || PL_gid != PL_egid)) { | |
4476 | /* Need to taint reloccated paths if running set ID */ | |
4477 | SvTAINTED_on(libdir); | |
4478 | } | |
4479 | } | |
4480 | SvREFCNT_dec(prefix_sv); | |
4481 | } | |
88fe16b2 | 4482 | #endif |
dd374669 | 4483 | } |
774d564b | 4484 | /* |
4485 | * BEFORE pushing libdir onto @INC we may first push version- and | |
4486 | * archname-specific sub-directories. | |
4487 | */ | |
ee80e7be | 4488 | if (using_sub_dirs) { |
7ffdaae6 | 4489 | SV *subdir; |
29d82f8d | 4490 | #ifdef PERL_INC_VERSION_LIST |
8353b874 | 4491 | /* Configure terminates PERL_INC_VERSION_LIST with a NULL */ |
c4420975 AL |
4492 | const char * const incverlist[] = { PERL_INC_VERSION_LIST }; |
4493 | const char * const *incver; | |
29d82f8d | 4494 | #endif |
aa689395 | 4495 | #ifdef VMS |
4496 | char *unix; | |
4497 | STRLEN len; | |
774d564b | 4498 | |
10cc20f6 | 4499 | |
bd61b366 | 4500 | if ((unix = tounixspec_ts(SvPV(libdir,len),NULL)) != NULL) { |
aa689395 | 4501 | len = strlen(unix); |
4502 | while (unix[len-1] == '/') len--; /* Cosmetic */ | |
4503 | sv_usepvn(libdir,unix,len); | |
4504 | } | |
4505 | else | |
bf49b057 | 4506 | PerlIO_printf(Perl_error_log, |
aa689395 | 4507 | "Failed to unixify @INC element \"%s\"\n", |
2d8e6c8d | 4508 | SvPV(libdir,len)); |
aa689395 | 4509 | #endif |
7ffdaae6 NC |
4510 | |
4511 | subdir = newSVsv(libdir); | |
4512 | ||
1e3208d8 | 4513 | if (add_versioned_sub_dirs) { |
9c8a64f0 | 4514 | /* .../version/archname if -d .../version/archname */ |
e51b748d | 4515 | sv_catpvs(subdir, "/" PERL_FS_VERSION "/" ARCHNAME); |
7ffdaae6 | 4516 | subdir = S_incpush_if_exists(aTHX_ av, subdir, libdir); |
4b03c463 | 4517 | |
9c8a64f0 | 4518 | /* .../version if -d .../version */ |
e51b748d | 4519 | sv_catpvs(subdir, "/" PERL_FS_VERSION); |
7ffdaae6 | 4520 | subdir = S_incpush_if_exists(aTHX_ av, subdir, libdir); |
29d82f8d | 4521 | } |
9c8a64f0 | 4522 | |
9c8a64f0 | 4523 | #ifdef PERL_INC_VERSION_LIST |
ccc2aad8 | 4524 | if (addoldvers) { |
9c8a64f0 GS |
4525 | for (incver = incverlist; *incver; incver++) { |
4526 | /* .../xxx if -d .../xxx */ | |
e51b748d | 4527 | Perl_sv_catpvf(aTHX_ subdir, "/%s", *incver); |
7ffdaae6 | 4528 | subdir = S_incpush_if_exists(aTHX_ av, subdir, libdir); |
9c8a64f0 GS |
4529 | } |
4530 | } | |
29d82f8d | 4531 | #endif |
c992324b | 4532 | |
1e3208d8 | 4533 | if (add_archonly_sub_dirs) { |
c992324b | 4534 | /* .../archname if -d .../archname */ |
e51b748d | 4535 | sv_catpvs(subdir, "/" ARCHNAME); |
7ffdaae6 | 4536 | subdir = S_incpush_if_exists(aTHX_ av, subdir, libdir); |
c992324b NC |
4537 | |
4538 | } | |
10cc20f6 NC |
4539 | |
4540 | assert (SvREFCNT(subdir) == 1); | |
4541 | SvREFCNT_dec(subdir); | |
774d564b | 4542 | } |
4543 | ||
20189146 RGS |
4544 | /* finally add this lib directory at the end of @INC */ |
4545 | if (unshift) { | |
3a9a9ba7 | 4546 | U32 extra = av_len(av) + 1; |
a26c0e28 NC |
4547 | av_unshift(inc, extra + push_basedir); |
4548 | if (push_basedir) | |
4549 | av_store(inc, extra, libdir); | |
3a9a9ba7 NC |
4550 | while (extra--) { |
4551 | /* av owns a reference, av_store() expects to be donated a | |
4552 | reference, and av expects to be sane when it's cleared. | |
4553 | If I wanted to be naughty and wrong, I could peek inside the | |
4554 | implementation of av_clear(), realise that it uses | |
4555 | SvREFCNT_dec() too, so av's array could be a run of NULLs, | |
4556 | and so directly steal from it (with a memcpy() to inc, and | |
4557 | then memset() to NULL them out. But people copy code from the | |
4558 | core expecting it to be best practise, so let's use the API. | |
4559 | Although studious readers will note that I'm not checking any | |
4560 | return codes. */ | |
4561 | av_store(inc, extra, SvREFCNT_inc(*av_fetch(av, extra, FALSE))); | |
4562 | } | |
4563 | SvREFCNT_dec(av); | |
20189146 | 4564 | } |
a26c0e28 | 4565 | else if (push_basedir) { |
3a9a9ba7 | 4566 | av_push(inc, libdir); |
20189146 | 4567 | } |
a26c0e28 NC |
4568 | |
4569 | if (!push_basedir) { | |
4570 | assert (SvREFCNT(libdir) == 1); | |
4571 | SvREFCNT_dec(libdir); | |
4572 | } | |
774d564b | 4573 | } |
34de22dd | 4574 | } |
93a17b20 | 4575 | |
55b4bc1c | 4576 | STATIC void |
50d61629 | 4577 | S_incpush_use_sep(pTHX_ const char *p, STRLEN len, U32 flags) |
55b4bc1c | 4578 | { |
50d61629 NC |
4579 | const char *s; |
4580 | const char *end; | |
55b4bc1c NC |
4581 | /* This logic has been broken out from S_incpush(). It may be possible to |
4582 | simplify it. */ | |
4583 | ||
4705144d NC |
4584 | PERL_ARGS_ASSERT_INCPUSH_USE_SEP; |
4585 | ||
50d61629 NC |
4586 | if (!len) |
4587 | len = strlen(p); | |
4588 | ||
4589 | end = p + len; | |
4590 | ||
55b4bc1c | 4591 | /* Break at all separators */ |
e42f52dd | 4592 | while ((s = (const char*)memchr(p, PERLLIB_SEP, end - p))) { |
50d61629 NC |
4593 | if (s == p) { |
4594 | /* skip any consecutive separators */ | |
55b4bc1c | 4595 | |
55b4bc1c | 4596 | /* Uncomment the next line for PATH semantics */ |
50d61629 | 4597 | /* But you'll need to write tests */ |
55b4bc1c | 4598 | /* av_push(GvAVn(PL_incgv), newSVpvs(".")); */ |
50d61629 | 4599 | } else { |
55b4bc1c | 4600 | incpush(p, (STRLEN)(s - p), flags); |
55b4bc1c | 4601 | } |
50d61629 | 4602 | p = s + 1; |
55b4bc1c | 4603 | } |
50d61629 NC |
4604 | if (p != end) |
4605 | incpush(p, (STRLEN)(end - p), flags); | |
4606 | ||
55b4bc1c | 4607 | } |
199100c8 | 4608 | |
93a17b20 | 4609 | void |
864dbfa3 | 4610 | Perl_call_list(pTHX_ I32 oldscope, AV *paramList) |
93a17b20 | 4611 | { |
27da23d5 | 4612 | dVAR; |
971a9dd3 | 4613 | SV *atsv; |
5f40764f | 4614 | volatile const line_t oldline = PL_curcop ? CopLINE(PL_curcop) : 0; |
312caa8e | 4615 | CV *cv; |
22921e25 | 4616 | STRLEN len; |
6224f72b | 4617 | int ret; |
db36c5a1 | 4618 | dJMPENV; |
93a17b20 | 4619 | |
7918f24d NC |
4620 | PERL_ARGS_ASSERT_CALL_LIST; |
4621 | ||
e1ec3a88 | 4622 | while (av_len(paramList) >= 0) { |
ea726b52 | 4623 | cv = MUTABLE_CV(av_shift(paramList)); |
ece599bd RGS |
4624 | if (PL_savebegin) { |
4625 | if (paramList == PL_beginav) { | |
059a8bb7 | 4626 | /* save PL_beginav for compiler */ |
ad64d0ec | 4627 | Perl_av_create_and_push(aTHX_ &PL_beginav_save, MUTABLE_SV(cv)); |
ece599bd RGS |
4628 | } |
4629 | else if (paramList == PL_checkav) { | |
4630 | /* save PL_checkav for compiler */ | |
ad64d0ec | 4631 | Perl_av_create_and_push(aTHX_ &PL_checkav_save, MUTABLE_SV(cv)); |
ece599bd | 4632 | } |
3c10abe3 AG |
4633 | else if (paramList == PL_unitcheckav) { |
4634 | /* save PL_unitcheckav for compiler */ | |
ad64d0ec | 4635 | Perl_av_create_and_push(aTHX_ &PL_unitcheckav_save, MUTABLE_SV(cv)); |
3c10abe3 | 4636 | } |
059a8bb7 | 4637 | } else { |
81d86705 NC |
4638 | if (!PL_madskills) |
4639 | SAVEFREESV(cv); | |
059a8bb7 | 4640 | } |
14dd3ad8 | 4641 | JMPENV_PUSH(ret); |
6224f72b | 4642 | switch (ret) { |
312caa8e | 4643 | case 0: |
81d86705 NC |
4644 | #ifdef PERL_MAD |
4645 | if (PL_madskills) | |
4646 | PL_madskills |= 16384; | |
4647 | #endif | |
d6f07c05 | 4648 | CALL_LIST_BODY(cv); |
81d86705 NC |
4649 | #ifdef PERL_MAD |
4650 | if (PL_madskills) | |
4651 | PL_madskills &= ~16384; | |
4652 | #endif | |
971a9dd3 | 4653 | atsv = ERRSV; |
10516c54 | 4654 | (void)SvPV_const(atsv, len); |
312caa8e CS |
4655 | if (len) { |
4656 | PL_curcop = &PL_compiling; | |
57843af0 | 4657 | CopLINE_set(PL_curcop, oldline); |
312caa8e | 4658 | if (paramList == PL_beginav) |
396482e1 | 4659 | sv_catpvs(atsv, "BEGIN failed--compilation aborted"); |
312caa8e | 4660 | else |
4f25aa18 GS |
4661 | Perl_sv_catpvf(aTHX_ atsv, |
4662 | "%s failed--call queue aborted", | |
7d30b5c4 | 4663 | paramList == PL_checkav ? "CHECK" |
4f25aa18 | 4664 | : paramList == PL_initav ? "INIT" |
3c10abe3 | 4665 | : paramList == PL_unitcheckav ? "UNITCHECK" |
4f25aa18 | 4666 | : "END"); |
312caa8e CS |
4667 | while (PL_scopestack_ix > oldscope) |
4668 | LEAVE; | |
14dd3ad8 | 4669 | JMPENV_POP; |
be2597df | 4670 | Perl_croak(aTHX_ "%"SVf"", SVfARG(atsv)); |
a0d0e21e | 4671 | } |
85e6fe83 | 4672 | break; |
6224f72b | 4673 | case 1: |
f86702cc | 4674 | STATUS_ALL_FAILURE; |
85e6fe83 | 4675 | /* FALL THROUGH */ |
6224f72b | 4676 | case 2: |
85e6fe83 | 4677 | /* my_exit() was called */ |
3280af22 | 4678 | while (PL_scopestack_ix > oldscope) |
2ae324a7 | 4679 | LEAVE; |
84902520 | 4680 | FREETMPS; |
3280af22 | 4681 | PL_curstash = PL_defstash; |
3280af22 | 4682 | PL_curcop = &PL_compiling; |
57843af0 | 4683 | CopLINE_set(PL_curcop, oldline); |
14dd3ad8 | 4684 | JMPENV_POP; |
f86702cc | 4685 | my_exit_jump(); |
85e6fe83 | 4686 | /* NOTREACHED */ |
6224f72b | 4687 | case 3: |
312caa8e CS |
4688 | if (PL_restartop) { |
4689 | PL_curcop = &PL_compiling; | |
57843af0 | 4690 | CopLINE_set(PL_curcop, oldline); |
312caa8e | 4691 | JMPENV_JUMP(3); |
85e6fe83 | 4692 | } |
bf49b057 | 4693 | PerlIO_printf(Perl_error_log, "panic: restartop\n"); |
312caa8e CS |
4694 | FREETMPS; |
4695 | break; | |
8990e307 | 4696 | } |
14dd3ad8 | 4697 | JMPENV_POP; |
93a17b20 | 4698 | } |
93a17b20 | 4699 | } |
93a17b20 | 4700 | |
f86702cc | 4701 | void |
864dbfa3 | 4702 | Perl_my_exit(pTHX_ U32 status) |
f86702cc | 4703 | { |
97aff369 | 4704 | dVAR; |
f86702cc | 4705 | switch (status) { |
4706 | case 0: | |
4707 | STATUS_ALL_SUCCESS; | |
4708 | break; | |
4709 | case 1: | |
4710 | STATUS_ALL_FAILURE; | |
4711 | break; | |
4712 | default: | |
6ac6a52b | 4713 | STATUS_EXIT_SET(status); |
f86702cc | 4714 | break; |
4715 | } | |
4716 | my_exit_jump(); | |
4717 | } | |
4718 | ||
4719 | void | |
864dbfa3 | 4720 | Perl_my_failure_exit(pTHX) |
f86702cc | 4721 | { |
97aff369 | 4722 | dVAR; |
f86702cc | 4723 | #ifdef VMS |
fb38d079 JM |
4724 | /* We have been called to fall on our sword. The desired exit code |
4725 | * should be already set in STATUS_UNIX, but could be shifted over | |
0968cdad JM |
4726 | * by 8 bits. STATUS_UNIX_EXIT_SET will handle the cases where a |
4727 | * that code is set. | |
fb38d079 JM |
4728 | * |
4729 | * If an error code has not been set, then force the issue. | |
4730 | */ | |
0968cdad JM |
4731 | if (MY_POSIX_EXIT) { |
4732 | ||
e08e1e1d JM |
4733 | /* According to the die_exit.t tests, if errno is non-zero */ |
4734 | /* It should be used for the error status. */ | |
0968cdad | 4735 | |
e08e1e1d JM |
4736 | if (errno == EVMSERR) { |
4737 | STATUS_NATIVE = vaxc$errno; | |
4738 | } else { | |
0968cdad | 4739 | |
e08e1e1d JM |
4740 | /* According to die_exit.t tests, if the child_exit code is */ |
4741 | /* also zero, then we need to exit with a code of 255 */ | |
4742 | if ((errno != 0) && (errno < 256)) | |
4743 | STATUS_UNIX_EXIT_SET(errno); | |
4744 | else if (STATUS_UNIX < 255) { | |
0968cdad | 4745 | STATUS_UNIX_EXIT_SET(255); |
e08e1e1d JM |
4746 | } |
4747 | ||
0968cdad | 4748 | } |
e08e1e1d JM |
4749 | |
4750 | /* The exit code could have been set by $? or vmsish which | |
4751 | * means that it may not have fatal set. So convert | |
4752 | * success/warning codes to fatal with out changing | |
4753 | * the POSIX status code. The severity makes VMS native | |
4754 | * status handling work, while UNIX mode programs use the | |
4755 | * the POSIX exit codes. | |
4756 | */ | |
4757 | if ((STATUS_NATIVE & (STS$K_SEVERE|STS$K_ERROR)) == 0) { | |
4758 | STATUS_NATIVE &= STS$M_COND_ID; | |
4759 | STATUS_NATIVE |= STS$K_ERROR | STS$M_INHIB_MSG; | |
4760 | } | |
0968cdad JM |
4761 | } |
4762 | else { | |
4763 | /* Traditionally Perl on VMS always expects a Fatal Error. */ | |
4764 | if (vaxc$errno & 1) { | |
4765 | ||
4766 | /* So force success status to failure */ | |
4767 | if (STATUS_NATIVE & 1) | |
4768 | STATUS_ALL_FAILURE; | |
4769 | } | |
4770 | else { | |
4771 | if (!vaxc$errno) { | |
4772 | STATUS_UNIX = EINTR; /* In case something cares */ | |
4773 | STATUS_ALL_FAILURE; | |
4774 | } | |
4775 | else { | |
4776 | int severity; | |
4777 | STATUS_NATIVE = vaxc$errno; /* Should already be this */ | |
4778 | ||
4779 | /* Encode the severity code */ | |
4780 | severity = STATUS_NATIVE & STS$M_SEVERITY; | |
4781 | STATUS_UNIX = (severity ? severity : 1) << 8; | |
4782 | ||
4783 | /* Perl expects this to be a fatal error */ | |
4784 | if (severity != STS$K_SEVERE) | |
4785 | STATUS_ALL_FAILURE; | |
4786 | } | |
4787 | } | |
4788 | } | |
fb38d079 | 4789 | |
f86702cc | 4790 | #else |
9b599b2a | 4791 | int exitstatus; |
f86702cc | 4792 | if (errno & 255) |
e5218da5 | 4793 | STATUS_UNIX_SET(errno); |
9b599b2a | 4794 | else { |
e5218da5 | 4795 | exitstatus = STATUS_UNIX >> 8; |
9b599b2a | 4796 | if (exitstatus & 255) |
e5218da5 | 4797 | STATUS_UNIX_SET(exitstatus); |
9b599b2a | 4798 | else |
e5218da5 | 4799 | STATUS_UNIX_SET(255); |
9b599b2a | 4800 | } |
f86702cc | 4801 | #endif |
4802 | my_exit_jump(); | |
93a17b20 LW |
4803 | } |
4804 | ||
76e3520e | 4805 | STATIC void |
cea2e8a9 | 4806 | S_my_exit_jump(pTHX) |
f86702cc | 4807 | { |
27da23d5 | 4808 | dVAR; |
f86702cc | 4809 | |
3280af22 NIS |
4810 | if (PL_e_script) { |
4811 | SvREFCNT_dec(PL_e_script); | |
a0714e2c | 4812 | PL_e_script = NULL; |
f86702cc | 4813 | } |
4814 | ||
3280af22 | 4815 | POPSTACK_TO(PL_mainstack); |
f97a0ef2 RH |
4816 | dounwind(-1); |
4817 | LEAVE_SCOPE(0); | |
ff0cee69 | 4818 | |
6224f72b | 4819 | JMPENV_JUMP(2); |
f86702cc | 4820 | } |
873ef191 | 4821 | |
0cb96387 | 4822 | static I32 |
acfe0abc | 4823 | read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen) |
873ef191 | 4824 | { |
97aff369 | 4825 | dVAR; |
9d4ba2ae AL |
4826 | const char * const p = SvPVX_const(PL_e_script); |
4827 | const char *nl = strchr(p, '\n'); | |
4828 | ||
4829 | PERL_UNUSED_ARG(idx); | |
4830 | PERL_UNUSED_ARG(maxlen); | |
dd374669 | 4831 | |
3280af22 | 4832 | nl = (nl) ? nl+1 : SvEND(PL_e_script); |
7dfe3f66 | 4833 | if (nl-p == 0) { |
0cb96387 | 4834 | filter_del(read_e_script); |
873ef191 | 4835 | return 0; |
7dfe3f66 | 4836 | } |
873ef191 | 4837 | sv_catpvn(buf_sv, p, nl-p); |
3280af22 | 4838 | sv_chop(PL_e_script, nl); |
873ef191 GS |
4839 | return 1; |
4840 | } | |
66610fdd RGS |
4841 | |
4842 | /* | |
4843 | * Local variables: | |
4844 | * c-indentation-style: bsd | |
4845 | * c-basic-offset: 4 | |
4846 | * indent-tabs-mode: t | |
4847 | * End: | |
4848 | * | |
37442d52 RGS |
4849 | * ex: set ts=8 sts=4 sw=4 noet: |
4850 | */ |