Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* perl.c |
2 | * | |
a411490c | 3 | * Copyright (c) 1987-1998 Larry Wall |
a687059c | 4 | * |
352d5a3a LW |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. | |
a687059c | 7 | * |
8d063cd8 LW |
8 | */ |
9 | ||
a0d0e21e LW |
10 | /* |
11 | * "A ship then new they built for him/of mithril and of elven glass" --Bilbo | |
12 | */ | |
45d8adaa | 13 | |
378cc40b LW |
14 | #include "EXTERN.h" |
15 | #include "perl.h" | |
a687059c | 16 | #include "patchlevel.h" |
378cc40b | 17 | |
df5cef82 | 18 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e LW |
19 | #ifdef I_UNISTD |
20 | #include <unistd.h> | |
21 | #endif | |
a0d0e21e | 22 | |
54310121 | 23 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) |
24 | char *getenv _((char *)); /* Usually in <stdlib.h> */ | |
25 | #endif | |
26 | ||
51fa4eea JH |
27 | #ifdef I_FCNTL |
28 | #include <fcntl.h> | |
29 | #endif | |
30 | #ifdef I_SYS_FILE | |
31 | #include <sys/file.h> | |
32 | #endif | |
33 | ||
a687059c LW |
34 | #ifdef IAMSUID |
35 | #ifndef DOSUID | |
36 | #define DOSUID | |
37 | #endif | |
38 | #endif | |
378cc40b | 39 | |
a687059c LW |
40 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
41 | #ifdef DOSUID | |
42 | #undef DOSUID | |
43 | #endif | |
44 | #endif | |
8d063cd8 | 45 | |
873ef191 GS |
46 | #ifdef PERL_OBJECT |
47 | static I32 read_e_script _((CPerlObj* pPerl, int idx, SV *buf_sv, int maxlen)); | |
48 | #else | |
a0d0e21e | 49 | static void find_beginning _((void)); |
bbce6d69 | 50 | static void forbid_setid _((char *)); |
774d564b | 51 | static void incpush _((char *, int)); |
cb68f92d | 52 | static void init_interp _((void)); |
748a9306 | 53 | static void init_ids _((void)); |
a0d0e21e LW |
54 | static void init_debugger _((void)); |
55 | static void init_lexer _((void)); | |
56 | static void init_main_stash _((void)); | |
199100c8 | 57 | #ifdef USE_THREADS |
52e1cb5e | 58 | static struct perl_thread * init_main_thread _((void)); |
199100c8 | 59 | #endif /* USE_THREADS */ |
a0d0e21e LW |
60 | static void init_perllib _((void)); |
61 | static void init_postdump_symbols _((int, char **, char **)); | |
62 | static void init_predump_symbols _((void)); | |
f86702cc | 63 | static void my_exit_jump _((void)) __attribute__((noreturn)); |
6e72f9df | 64 | static void nuke_stacks _((void)); |
01f988be | 65 | static void open_script _((char *, bool, SV *, int *fd)); |
ab821d7f | 66 | static void usage _((char *)); |
104d25b7 JH |
67 | #ifdef IAMSUID |
68 | static int fd_on_nosuid_fs _((int)); | |
69 | #endif | |
01f988be | 70 | static void validate_suid _((char *, char*, int)); |
afe37c7d | 71 | static I32 read_e_script _((int idx, SV *buf_sv, int maxlen)); |
76e3520e | 72 | #endif |
96436eeb | 73 | |
01f988be GS |
74 | #ifdef PERL_OBJECT |
75 | CPerlObj* perl_alloc(IPerlMem* ipM, IPerlEnv* ipE, IPerlStdIO* ipStd, | |
76 | IPerlLIO* ipLIO, IPerlDir* ipD, IPerlSock* ipS, IPerlProc* ipP) | |
77 | { | |
78 | CPerlObj* pPerl = new(ipM) CPerlObj(ipM, ipE, ipStd, ipLIO, ipD, ipS, ipP); | |
79 | if(pPerl != NULL) | |
80 | pPerl->Init(); | |
79072805 | 81 | |
01f988be GS |
82 | return pPerl; |
83 | } | |
84 | #else | |
93a17b20 | 85 | PerlInterpreter * |
8ac85365 | 86 | perl_alloc(void) |
79072805 | 87 | { |
93a17b20 | 88 | PerlInterpreter *sv_interp; |
79072805 | 89 | |
3280af22 | 90 | PL_curinterp = 0; |
93a17b20 | 91 | New(53, sv_interp, 1, PerlInterpreter); |
79072805 LW |
92 | return sv_interp; |
93 | } | |
01f988be | 94 | #endif /* PERL_OBJECT */ |
79072805 LW |
95 | |
96 | void | |
76e3520e | 97 | #ifdef PERL_OBJECT |
22c35a8c | 98 | perl_construct(void) |
76e3520e | 99 | #else |
8ac85365 | 100 | perl_construct(register PerlInterpreter *sv_interp) |
76e3520e | 101 | #endif |
79072805 | 102 | { |
a863c7d1 MB |
103 | #ifdef USE_THREADS |
104 | int i; | |
105 | #ifndef FAKE_THREADS | |
52e1cb5e | 106 | struct perl_thread *thr; |
a863c7d1 MB |
107 | #endif /* FAKE_THREADS */ |
108 | #endif /* USE_THREADS */ | |
11343788 | 109 | |
76e3520e | 110 | #ifndef PERL_OBJECT |
3280af22 | 111 | if (!(PL_curinterp = sv_interp)) |
79072805 | 112 | return; |
76e3520e | 113 | #endif |
79072805 | 114 | |
8990e307 | 115 | #ifdef MULTIPLICITY |
8f872242 | 116 | ++PL_ninterps; |
93a17b20 | 117 | Zero(sv_interp, 1, PerlInterpreter); |
8990e307 | 118 | #endif |
79072805 | 119 | |
33f46ff6 | 120 | /* Init the real globals (and main thread)? */ |
3280af22 | 121 | if (!PL_linestr) { |
11343788 | 122 | #ifdef USE_THREADS |
8023c3ce | 123 | |
33f46ff6 | 124 | INIT_THREADS; |
d55594ae GS |
125 | #ifdef ALLOC_THREAD_KEY |
126 | ALLOC_THREAD_KEY; | |
127 | #else | |
533c011a | 128 | if (pthread_key_create(&PL_thr_key, 0)) |
a863c7d1 | 129 | croak("panic: pthread_key_create"); |
d55594ae | 130 | #endif |
533c011a | 131 | MUTEX_INIT(&PL_sv_mutex); |
a863c7d1 MB |
132 | /* |
133 | * Safe to use basic SV functions from now on (though | |
134 | * not things like mortals or tainting yet). | |
135 | */ | |
533c011a NIS |
136 | MUTEX_INIT(&PL_eval_mutex); |
137 | COND_INIT(&PL_eval_cond); | |
138 | MUTEX_INIT(&PL_threads_mutex); | |
139 | COND_INIT(&PL_nthreads_cond); | |
dce16143 | 140 | #ifdef EMULATE_ATOMIC_REFCOUNTS |
533c011a | 141 | MUTEX_INIT(&PL_svref_mutex); |
dce16143 | 142 | #endif /* EMULATE_ATOMIC_REFCOUNTS */ |
a863c7d1 | 143 | |
5ff3f7a4 GS |
144 | MUTEX_INIT(&PL_cred_mutex); |
145 | ||
199100c8 | 146 | thr = init_main_thread(); |
11343788 MB |
147 | #endif /* USE_THREADS */ |
148 | ||
2aea9f8a GS |
149 | PL_curcop = &PL_compiling; /* needed by ckWARN, right away */ |
150 | ||
3280af22 NIS |
151 | PL_linestr = NEWSV(65,79); |
152 | sv_upgrade(PL_linestr,SVt_PVIV); | |
79072805 | 153 | |
3280af22 | 154 | if (!SvREADONLY(&PL_sv_undef)) { |
d689ffdd JP |
155 | /* set read-only and try to insure than we wont see REFCNT==0 |
156 | very often */ | |
157 | ||
3280af22 NIS |
158 | SvREADONLY_on(&PL_sv_undef); |
159 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
79072805 | 160 | |
3280af22 NIS |
161 | sv_setpv(&PL_sv_no,PL_No); |
162 | SvNV(&PL_sv_no); | |
163 | SvREADONLY_on(&PL_sv_no); | |
164 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; | |
79072805 | 165 | |
3280af22 NIS |
166 | sv_setpv(&PL_sv_yes,PL_Yes); |
167 | SvNV(&PL_sv_yes); | |
168 | SvREADONLY_on(&PL_sv_yes); | |
169 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; | |
6e72f9df | 170 | } |
79072805 | 171 | |
76e3520e GS |
172 | #ifdef PERL_OBJECT |
173 | /* TODO: */ | |
6b88bc9c | 174 | /* PL_sighandlerp = sighandler; */ |
76e3520e | 175 | #else |
3280af22 | 176 | PL_sighandlerp = sighandler; |
76e3520e | 177 | #endif |
3280af22 | 178 | PL_pidstatus = newHV(); |
44a8e56a | 179 | |
79072805 LW |
180 | #ifdef MSDOS |
181 | /* | |
182 | * There is no way we can refer to them from Perl so close them to save | |
183 | * space. The other alternative would be to provide STDAUX and STDPRN | |
184 | * filehandles. | |
185 | */ | |
186 | (void)fclose(stdaux); | |
187 | (void)fclose(stdprn); | |
188 | #endif | |
189 | } | |
190 | ||
3280af22 NIS |
191 | PL_nrs = newSVpv("\n", 1); |
192 | PL_rs = SvREFCNT_inc(PL_nrs); | |
dc92893f | 193 | |
1a441de9 | 194 | init_stacks(ARGS); |
8990e307 | 195 | #ifdef MULTIPLICITY |
cb68f92d | 196 | init_interp(); |
8f872242 | 197 | PL_perl_destruct_level = 1; |
8ebc5c01 | 198 | #else |
3280af22 | 199 | if (PL_perl_destruct_level > 0) |
cb68f92d | 200 | init_interp(); |
79072805 LW |
201 | #endif |
202 | ||
748a9306 | 203 | init_ids(); |
3280af22 | 204 | PL_lex_state = LEX_NOTPARSING; |
a5f75d66 | 205 | |
3280af22 NIS |
206 | PL_start_env.je_prev = NULL; |
207 | PL_start_env.je_ret = -1; | |
208 | PL_start_env.je_mustcatch = TRUE; | |
209 | PL_top_env = &PL_start_env; | |
f86702cc | 210 | STATUS_ALL_SUCCESS; |
211 | ||
36477c24 | 212 | SET_NUMERIC_STANDARD(); |
a5f75d66 | 213 | #if defined(SUBVERSION) && SUBVERSION > 0 |
3280af22 | 214 | sprintf(PL_patchlevel, "%7.5f", (double) 5 |
e2666263 | 215 | + ((double) PATCHLEVEL / (double) 1000) |
216 | + ((double) SUBVERSION / (double) 100000)); | |
a5f75d66 | 217 | #else |
6b88bc9c | 218 | sprintf(PL_patchlevel, "%5.3f", (double) 5 + |
e2666263 | 219 | ((double) PATCHLEVEL / (double) 1000)); |
a5f75d66 | 220 | #endif |
79072805 | 221 | |
ab821d7f | 222 | #if defined(LOCAL_PATCH_COUNT) |
3280af22 | 223 | PL_localpatches = local_patches; /* For possible -v */ |
ab821d7f | 224 | #endif |
225 | ||
4b556e6c | 226 | PerlIO_init(); /* Hook to IO system */ |
760ac839 | 227 | |
3280af22 NIS |
228 | PL_fdpid = newAV(); /* for remembering popen pids by fd */ |
229 | PL_modglobal = newHV(); /* pointers to per-interpreter module globals */ | |
8990e307 | 230 | |
11343788 | 231 | DEBUG( { |
3280af22 NIS |
232 | New(51,PL_debname,128,char); |
233 | New(52,PL_debdelim,128,char); | |
11343788 MB |
234 | } ) |
235 | ||
8990e307 | 236 | ENTER; |
79072805 LW |
237 | } |
238 | ||
239 | void | |
76e3520e | 240 | #ifdef PERL_OBJECT |
22c35a8c | 241 | perl_destruct(void) |
76e3520e | 242 | #else |
8ac85365 | 243 | perl_destruct(register PerlInterpreter *sv_interp) |
76e3520e | 244 | #endif |
79072805 | 245 | { |
11343788 | 246 | dTHR; |
748a9306 | 247 | int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
8990e307 | 248 | I32 last_sv_count; |
a0d0e21e | 249 | HV *hv; |
1f2bfc8a | 250 | #ifdef USE_THREADS |
33f46ff6 | 251 | Thread t; |
1f2bfc8a | 252 | #endif /* USE_THREADS */ |
8990e307 | 253 | |
76e3520e | 254 | #ifndef PERL_OBJECT |
3280af22 | 255 | if (!(PL_curinterp = sv_interp)) |
79072805 | 256 | return; |
76e3520e | 257 | #endif |
748a9306 | 258 | |
11343788 | 259 | #ifdef USE_THREADS |
0f15f207 | 260 | #ifndef FAKE_THREADS |
8023c3ce MB |
261 | /* Pass 1 on any remaining threads: detach joinables, join zombies */ |
262 | retry_cleanup: | |
533c011a | 263 | MUTEX_LOCK(&PL_threads_mutex); |
8b73bbec | 264 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 | 265 | "perl_destruct: waiting for %d threads...\n", |
533c011a | 266 | PL_nthreads - 1)); |
33f46ff6 | 267 | for (t = thr->next; t != thr; t = t->next) { |
605e5515 MB |
268 | MUTEX_LOCK(&t->mutex); |
269 | switch (ThrSTATE(t)) { | |
270 | AV *av; | |
c7848ba1 | 271 | case THRf_ZOMBIE: |
8b73bbec | 272 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 | 273 | "perl_destruct: joining zombie %p\n", t)); |
605e5515 MB |
274 | ThrSETSTATE(t, THRf_DEAD); |
275 | MUTEX_UNLOCK(&t->mutex); | |
533c011a | 276 | PL_nthreads--; |
8023c3ce MB |
277 | /* |
278 | * The SvREFCNT_dec below may take a long time (e.g. av | |
279 | * may contain an object scalar whose destructor gets | |
280 | * called) so we have to unlock threads_mutex and start | |
281 | * all over again. | |
282 | */ | |
533c011a | 283 | MUTEX_UNLOCK(&PL_threads_mutex); |
ea0efc06 | 284 | JOIN(t, &av); |
605e5515 | 285 | SvREFCNT_dec((SV*)av); |
8b73bbec | 286 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 | 287 | "perl_destruct: joined zombie %p OK\n", t)); |
8023c3ce | 288 | goto retry_cleanup; |
c7848ba1 | 289 | case THRf_R_JOINABLE: |
8b73bbec | 290 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 MB |
291 | "perl_destruct: detaching thread %p\n", t)); |
292 | ThrSETSTATE(t, THRf_R_DETACHED); | |
293 | /* | |
294 | * We unlock threads_mutex and t->mutex in the opposite order | |
295 | * from which we locked them just so that DETACH won't | |
296 | * deadlock if it panics. It's only a breach of good style | |
297 | * not a bug since they are unlocks not locks. | |
298 | */ | |
533c011a | 299 | MUTEX_UNLOCK(&PL_threads_mutex); |
c7848ba1 MB |
300 | DETACH(t); |
301 | MUTEX_UNLOCK(&t->mutex); | |
8023c3ce | 302 | goto retry_cleanup; |
c7848ba1 | 303 | default: |
8b73bbec | 304 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 MB |
305 | "perl_destruct: ignoring %p (state %u)\n", |
306 | t, ThrSTATE(t))); | |
307 | MUTEX_UNLOCK(&t->mutex); | |
c7848ba1 | 308 | /* fall through and out */ |
33f46ff6 MB |
309 | } |
310 | } | |
8023c3ce MB |
311 | /* We leave the above "Pass 1" loop with threads_mutex still locked */ |
312 | ||
313 | /* Pass 2 on remaining threads: wait for the thread count to drop to one */ | |
533c011a | 314 | while (PL_nthreads > 1) |
11343788 | 315 | { |
8b73bbec | 316 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 | 317 | "perl_destruct: final wait for %d threads\n", |
533c011a NIS |
318 | PL_nthreads - 1)); |
319 | COND_WAIT(&PL_nthreads_cond, &PL_threads_mutex); | |
11343788 MB |
320 | } |
321 | /* At this point, we're the last thread */ | |
533c011a | 322 | MUTEX_UNLOCK(&PL_threads_mutex); |
8b73bbec | 323 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "perl_destruct: armageddon has arrived\n")); |
533c011a NIS |
324 | MUTEX_DESTROY(&PL_threads_mutex); |
325 | COND_DESTROY(&PL_nthreads_cond); | |
0f15f207 | 326 | #endif /* !defined(FAKE_THREADS) */ |
11343788 MB |
327 | #endif /* USE_THREADS */ |
328 | ||
3280af22 | 329 | destruct_level = PL_perl_destruct_level; |
4633a7c4 LW |
330 | #ifdef DEBUGGING |
331 | { | |
332 | char *s; | |
76e3520e | 333 | if (s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL")) { |
5f05dabc | 334 | int i = atoi(s); |
335 | if (destruct_level < i) | |
336 | destruct_level = i; | |
337 | } | |
4633a7c4 LW |
338 | } |
339 | #endif | |
340 | ||
8990e307 | 341 | LEAVE; |
a0d0e21e LW |
342 | FREETMPS; |
343 | ||
cb68f92d | 344 | #ifdef MULTIPLICITY |
8f872242 | 345 | --PL_ninterps; |
cb68f92d GS |
346 | #endif |
347 | ||
ff0cee69 | 348 | /* We must account for everything. */ |
349 | ||
350 | /* Destroy the main CV and syntax tree */ | |
3280af22 NIS |
351 | if (PL_main_root) { |
352 | PL_curpad = AvARRAY(PL_comppad); | |
353 | op_free(PL_main_root); | |
354 | PL_main_root = Nullop; | |
a0d0e21e | 355 | } |
3280af22 NIS |
356 | PL_curcop = &PL_compiling; |
357 | PL_main_start = Nullop; | |
358 | SvREFCNT_dec(PL_main_cv); | |
359 | PL_main_cv = Nullcv; | |
24d3c518 | 360 | PL_dirty = TRUE; |
ff0cee69 | 361 | |
3280af22 | 362 | if (PL_sv_objcount) { |
a0d0e21e LW |
363 | /* |
364 | * Try to destruct global references. We do this first so that the | |
365 | * destructors and destructees still exist. Some sv's might remain. | |
366 | * Non-referenced objects are on their own. | |
367 | */ | |
a0d0e21e | 368 | sv_clean_objs(); |
8990e307 LW |
369 | } |
370 | ||
5cd24f17 | 371 | /* unhook hooks which will soon be, or use, destroyed data */ |
3280af22 NIS |
372 | SvREFCNT_dec(PL_warnhook); |
373 | PL_warnhook = Nullsv; | |
374 | SvREFCNT_dec(PL_diehook); | |
375 | PL_diehook = Nullsv; | |
376 | SvREFCNT_dec(PL_parsehook); | |
377 | PL_parsehook = Nullsv; | |
5cd24f17 | 378 | |
4b556e6c | 379 | /* call exit list functions */ |
3280af22 NIS |
380 | while (PL_exitlistlen-- > 0) |
381 | PL_exitlist[PL_exitlistlen].fn(PERL_OBJECT_THIS_ PL_exitlist[PL_exitlistlen].ptr); | |
4b556e6c | 382 | |
3280af22 | 383 | Safefree(PL_exitlist); |
4b556e6c | 384 | |
a0d0e21e | 385 | if (destruct_level == 0){ |
8990e307 | 386 | |
a0d0e21e LW |
387 | DEBUG_P(debprofdump()); |
388 | ||
389 | /* The exit() function will do everything that needs doing. */ | |
390 | return; | |
391 | } | |
5dd60ef7 | 392 | |
5f05dabc | 393 | /* loosen bonds of global variables */ |
394 | ||
3280af22 NIS |
395 | if(PL_rsfp) { |
396 | (void)PerlIO_close(PL_rsfp); | |
397 | PL_rsfp = Nullfp; | |
8ebc5c01 | 398 | } |
399 | ||
400 | /* Filters for program text */ | |
3280af22 NIS |
401 | SvREFCNT_dec(PL_rsfp_filters); |
402 | PL_rsfp_filters = Nullav; | |
8ebc5c01 | 403 | |
404 | /* switches */ | |
3280af22 NIS |
405 | PL_preprocess = FALSE; |
406 | PL_minus_n = FALSE; | |
407 | PL_minus_p = FALSE; | |
408 | PL_minus_l = FALSE; | |
409 | PL_minus_a = FALSE; | |
410 | PL_minus_F = FALSE; | |
411 | PL_doswitches = FALSE; | |
599cee73 | 412 | PL_dowarn = G_WARN_OFF; |
3280af22 NIS |
413 | PL_doextract = FALSE; |
414 | PL_sawampersand = FALSE; /* must save all match strings */ | |
415 | PL_sawstudy = FALSE; /* do fbm_instr on all strings */ | |
416 | PL_sawvec = FALSE; | |
417 | PL_unsafe = FALSE; | |
418 | ||
419 | Safefree(PL_inplace); | |
420 | PL_inplace = Nullch; | |
421 | ||
422 | if (PL_e_script) { | |
423 | SvREFCNT_dec(PL_e_script); | |
424 | PL_e_script = Nullsv; | |
8ebc5c01 | 425 | } |
426 | ||
427 | /* magical thingies */ | |
428 | ||
3280af22 NIS |
429 | Safefree(PL_ofs); /* $, */ |
430 | PL_ofs = Nullch; | |
5f05dabc | 431 | |
3280af22 NIS |
432 | Safefree(PL_ors); /* $\ */ |
433 | PL_ors = Nullch; | |
8ebc5c01 | 434 | |
3280af22 NIS |
435 | SvREFCNT_dec(PL_rs); /* $/ */ |
436 | PL_rs = Nullsv; | |
dc92893f | 437 | |
3280af22 NIS |
438 | SvREFCNT_dec(PL_nrs); /* $/ helper */ |
439 | PL_nrs = Nullsv; | |
5f05dabc | 440 | |
3280af22 | 441 | PL_multiline = 0; /* $* */ |
5f05dabc | 442 | |
3280af22 NIS |
443 | SvREFCNT_dec(PL_statname); |
444 | PL_statname = Nullsv; | |
445 | PL_statgv = Nullgv; | |
5f05dabc | 446 | |
8ebc5c01 | 447 | /* defgv, aka *_ should be taken care of elsewhere */ |
448 | ||
8ebc5c01 | 449 | /* clean up after study() */ |
3280af22 NIS |
450 | SvREFCNT_dec(PL_lastscream); |
451 | PL_lastscream = Nullsv; | |
452 | Safefree(PL_screamfirst); | |
453 | PL_screamfirst = 0; | |
454 | Safefree(PL_screamnext); | |
455 | PL_screamnext = 0; | |
8ebc5c01 | 456 | |
457 | /* startup and shutdown function lists */ | |
3280af22 NIS |
458 | SvREFCNT_dec(PL_beginav); |
459 | SvREFCNT_dec(PL_endav); | |
460 | SvREFCNT_dec(PL_initav); | |
461 | PL_beginav = Nullav; | |
462 | PL_endav = Nullav; | |
463 | PL_initav = Nullav; | |
5618dfe8 | 464 | |
8ebc5c01 | 465 | /* shortcuts just get cleared */ |
3280af22 NIS |
466 | PL_envgv = Nullgv; |
467 | PL_siggv = Nullgv; | |
468 | PL_incgv = Nullgv; | |
469 | PL_hintgv = Nullgv; | |
470 | PL_errgv = Nullgv; | |
471 | PL_argvgv = Nullgv; | |
472 | PL_argvoutgv = Nullgv; | |
473 | PL_stdingv = Nullgv; | |
474 | PL_last_in_gv = Nullgv; | |
475 | PL_replgv = Nullgv; | |
8ebc5c01 | 476 | |
477 | /* reset so print() ends up where we expect */ | |
478 | setdefout(Nullgv); | |
479 | ||
a0d0e21e | 480 | /* Prepare to destruct main symbol table. */ |
5f05dabc | 481 | |
3280af22 NIS |
482 | hv = PL_defstash; |
483 | PL_defstash = 0; | |
a0d0e21e LW |
484 | SvREFCNT_dec(hv); |
485 | ||
486 | FREETMPS; | |
487 | if (destruct_level >= 2) { | |
3280af22 | 488 | if (PL_scopestack_ix != 0) |
ff0cee69 | 489 | warn("Unbalanced scopes: %ld more ENTERs than LEAVEs\n", |
3280af22 NIS |
490 | (long)PL_scopestack_ix); |
491 | if (PL_savestack_ix != 0) | |
ff0cee69 | 492 | warn("Unbalanced saves: %ld more saves than restores\n", |
3280af22 NIS |
493 | (long)PL_savestack_ix); |
494 | if (PL_tmps_floor != -1) | |
ff0cee69 | 495 | warn("Unbalanced tmps: %ld more allocs than frees\n", |
3280af22 | 496 | (long)PL_tmps_floor + 1); |
a0d0e21e | 497 | if (cxstack_ix != -1) |
ff0cee69 | 498 | warn("Unbalanced context: %ld more PUSHes than POPs\n", |
499 | (long)cxstack_ix + 1); | |
a0d0e21e | 500 | } |
8990e307 LW |
501 | |
502 | /* Now absolutely destruct everything, somehow or other, loops or no. */ | |
8990e307 | 503 | last_sv_count = 0; |
3280af22 NIS |
504 | SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
505 | while (PL_sv_count != 0 && PL_sv_count != last_sv_count) { | |
506 | last_sv_count = PL_sv_count; | |
8990e307 LW |
507 | sv_clean_all(); |
508 | } | |
3280af22 NIS |
509 | SvFLAGS(PL_strtab) &= ~SVTYPEMASK; |
510 | SvFLAGS(PL_strtab) |= SVt_PVHV; | |
6e72f9df | 511 | |
512 | /* Destruct the global string table. */ | |
513 | { | |
514 | /* Yell and reset the HeVAL() slots that are still holding refcounts, | |
515 | * so that sv_free() won't fail on them. | |
516 | */ | |
517 | I32 riter; | |
518 | I32 max; | |
519 | HE *hent; | |
520 | HE **array; | |
521 | ||
522 | riter = 0; | |
3280af22 NIS |
523 | max = HvMAX(PL_strtab); |
524 | array = HvARRAY(PL_strtab); | |
6e72f9df | 525 | hent = array[0]; |
526 | for (;;) { | |
527 | if (hent) { | |
528 | warn("Unbalanced string table refcount: (%d) for \"%s\"", | |
529 | HeVAL(hent) - Nullsv, HeKEY(hent)); | |
530 | HeVAL(hent) = Nullsv; | |
531 | hent = HeNEXT(hent); | |
532 | } | |
533 | if (!hent) { | |
534 | if (++riter > max) | |
535 | break; | |
536 | hent = array[riter]; | |
537 | } | |
538 | } | |
539 | } | |
3280af22 | 540 | SvREFCNT_dec(PL_strtab); |
6e72f9df | 541 | |
3280af22 NIS |
542 | if (PL_sv_count != 0) |
543 | warn("Scalars leaked: %ld\n", (long)PL_sv_count); | |
6e72f9df | 544 | |
4633a7c4 | 545 | sv_free_arenas(); |
44a8e56a | 546 | |
547 | /* No SVs have survived, need to clean out */ | |
3280af22 NIS |
548 | PL_linestr = NULL; |
549 | PL_pidstatus = Nullhv; | |
550 | Safefree(PL_origfilename); | |
551 | Safefree(PL_archpat_auto); | |
552 | Safefree(PL_reg_start_tmp); | |
5c5e4c24 IZ |
553 | if (PL_reg_curpm) |
554 | Safefree(PL_reg_curpm); | |
3280af22 NIS |
555 | Safefree(HeKEY_hek(&PL_hv_fetch_ent_mh)); |
556 | Safefree(PL_op_mask); | |
6e72f9df | 557 | nuke_stacks(); |
3280af22 | 558 | PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */ |
a0d0e21e LW |
559 | |
560 | DEBUG_P(debprofdump()); | |
11343788 | 561 | #ifdef USE_THREADS |
5f08fbcd | 562 | MUTEX_DESTROY(&PL_strtab_mutex); |
533c011a NIS |
563 | MUTEX_DESTROY(&PL_sv_mutex); |
564 | MUTEX_DESTROY(&PL_eval_mutex); | |
5ff3f7a4 | 565 | MUTEX_DESTROY(&PL_cred_mutex); |
533c011a | 566 | COND_DESTROY(&PL_eval_cond); |
fc36a67e | 567 | |
8023c3ce | 568 | /* As the penultimate thing, free the non-arena SV for thrsv */ |
533c011a NIS |
569 | Safefree(SvPVX(PL_thrsv)); |
570 | Safefree(SvANY(PL_thrsv)); | |
571 | Safefree(PL_thrsv); | |
572 | PL_thrsv = Nullsv; | |
8023c3ce MB |
573 | #endif /* USE_THREADS */ |
574 | ||
fc36a67e | 575 | /* As the absolutely last thing, free the non-arena SV for mess() */ |
576 | ||
3280af22 | 577 | if (PL_mess_sv) { |
9c63abab GS |
578 | /* it could have accumulated taint magic */ |
579 | if (SvTYPE(PL_mess_sv) >= SVt_PVMG) { | |
580 | MAGIC* mg; | |
581 | MAGIC* moremagic; | |
582 | for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) { | |
583 | moremagic = mg->mg_moremagic; | |
584 | if (mg->mg_ptr && mg->mg_type != 'g' && mg->mg_len >= 0) | |
585 | Safefree(mg->mg_ptr); | |
586 | Safefree(mg); | |
587 | } | |
588 | } | |
fc36a67e | 589 | /* we know that type >= SVt_PV */ |
3280af22 NIS |
590 | SvOOK_off(PL_mess_sv); |
591 | Safefree(SvPVX(PL_mess_sv)); | |
592 | Safefree(SvANY(PL_mess_sv)); | |
593 | Safefree(PL_mess_sv); | |
594 | PL_mess_sv = Nullsv; | |
fc36a67e | 595 | } |
79072805 LW |
596 | } |
597 | ||
598 | void | |
76e3520e | 599 | #ifdef PERL_OBJECT |
22c35a8c | 600 | perl_free(void) |
76e3520e | 601 | #else |
8ac85365 | 602 | perl_free(PerlInterpreter *sv_interp) |
76e3520e | 603 | #endif |
79072805 | 604 | { |
76e3520e | 605 | #ifdef PERL_OBJECT |
565764a8 | 606 | Safefree(this); |
76e3520e | 607 | #else |
3280af22 | 608 | if (!(PL_curinterp = sv_interp)) |
79072805 LW |
609 | return; |
610 | Safefree(sv_interp); | |
76e3520e | 611 | #endif |
79072805 LW |
612 | } |
613 | ||
4b556e6c | 614 | void |
873ef191 | 615 | #ifdef PERL_OBJECT |
22c35a8c | 616 | perl_atexit(void (*fn) (CPerlObj*,void *), void *ptr) |
873ef191 | 617 | #else |
4b556e6c | 618 | perl_atexit(void (*fn) (void *), void *ptr) |
873ef191 | 619 | #endif |
4b556e6c | 620 | { |
3280af22 NIS |
621 | Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry); |
622 | PL_exitlist[PL_exitlistlen].fn = fn; | |
623 | PL_exitlist[PL_exitlistlen].ptr = ptr; | |
624 | ++PL_exitlistlen; | |
4b556e6c JD |
625 | } |
626 | ||
79072805 | 627 | int |
76e3520e | 628 | #ifdef PERL_OBJECT |
22c35a8c | 629 | perl_parse(void (*xsinit) (CPerlObj*), int argc, char **argv, char **env) |
76e3520e | 630 | #else |
8ac85365 | 631 | perl_parse(PerlInterpreter *sv_interp, void (*xsinit) (void), int argc, char **argv, char **env) |
76e3520e | 632 | #endif |
8d063cd8 | 633 | { |
11343788 | 634 | dTHR; |
6224f72b GS |
635 | register SV *sv; |
636 | register char *s; | |
637 | char *scriptname = NULL; | |
638 | VOL bool dosearch = FALSE; | |
639 | char *validarg = ""; | |
640 | I32 oldscope; | |
641 | AV* comppadlist; | |
642 | dJMPENV; | |
643 | int ret; | |
644 | int fdscript = -1; | |
8d063cd8 | 645 | |
a687059c LW |
646 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
647 | #ifdef IAMSUID | |
648 | #undef IAMSUID | |
463ee0b2 | 649 | croak("suidperl is no longer needed since the kernel can now execute\n\ |
a687059c LW |
650 | setuid perl scripts securely.\n"); |
651 | #endif | |
652 | #endif | |
653 | ||
76e3520e | 654 | #ifndef PERL_OBJECT |
3280af22 | 655 | if (!(PL_curinterp = sv_interp)) |
79072805 | 656 | return 255; |
76e3520e | 657 | #endif |
79072805 | 658 | |
6e72f9df | 659 | #if defined(NeXT) && defined(__DYNAMIC__) |
660 | _dyld_lookup_and_bind | |
661 | ("__environ", (unsigned long *) &environ_pointer, NULL); | |
662 | #endif /* environ */ | |
663 | ||
3280af22 NIS |
664 | PL_origargv = argv; |
665 | PL_origargc = argc; | |
a0d0e21e | 666 | #ifndef VMS /* VMS doesn't have environ array */ |
3280af22 | 667 | PL_origenviron = environ; |
a0d0e21e LW |
668 | #endif |
669 | ||
3280af22 | 670 | if (PL_do_undump) { |
a0d0e21e LW |
671 | |
672 | /* Come here if running an undumped a.out. */ | |
673 | ||
3280af22 NIS |
674 | PL_origfilename = savepv(argv[0]); |
675 | PL_do_undump = FALSE; | |
a0d0e21e | 676 | cxstack_ix = -1; /* start label stack again */ |
748a9306 | 677 | init_ids(); |
a0d0e21e LW |
678 | init_postdump_symbols(argc,argv,env); |
679 | return 0; | |
680 | } | |
681 | ||
3280af22 NIS |
682 | if (PL_main_root) { |
683 | PL_curpad = AvARRAY(PL_comppad); | |
684 | op_free(PL_main_root); | |
685 | PL_main_root = Nullop; | |
ff0cee69 | 686 | } |
3280af22 NIS |
687 | PL_main_start = Nullop; |
688 | SvREFCNT_dec(PL_main_cv); | |
689 | PL_main_cv = Nullcv; | |
79072805 | 690 | |
3280af22 NIS |
691 | time(&PL_basetime); |
692 | oldscope = PL_scopestack_ix; | |
599cee73 | 693 | PL_dowarn = G_WARN_OFF; |
f86702cc | 694 | |
6224f72b GS |
695 | JMPENV_PUSH(ret); |
696 | switch (ret) { | |
697 | case 1: | |
698 | STATUS_ALL_FAILURE; | |
699 | /* FALL THROUGH */ | |
700 | case 2: | |
701 | /* my_exit() was called */ | |
3280af22 | 702 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
703 | LEAVE; |
704 | FREETMPS; | |
3280af22 NIS |
705 | PL_curstash = PL_defstash; |
706 | if (PL_endav) | |
707 | call_list(oldscope, PL_endav); | |
6224f72b GS |
708 | JMPENV_POP; |
709 | return STATUS_NATIVE_EXPORT; | |
710 | case 3: | |
711 | JMPENV_POP; | |
712 | PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); | |
713 | return 1; | |
714 | } | |
79072805 | 715 | |
3280af22 | 716 | sv_setpvn(PL_linestr,"",0); |
6224f72b GS |
717 | sv = newSVpv("",0); /* first used for -I flags */ |
718 | SAVEFREESV(sv); | |
719 | init_main_stash(); | |
54310121 | 720 | |
6224f72b GS |
721 | for (argc--,argv++; argc > 0; argc--,argv++) { |
722 | if (argv[0][0] != '-' || !argv[0][1]) | |
723 | break; | |
724 | #ifdef DOSUID | |
725 | if (*validarg) | |
726 | validarg = " PHOOEY "; | |
727 | else | |
728 | validarg = argv[0]; | |
13281fa4 | 729 | #endif |
6224f72b GS |
730 | s = argv[0]+1; |
731 | reswitch: | |
732 | switch (*s) { | |
733 | case ' ': | |
734 | case '0': | |
735 | case 'F': | |
736 | case 'a': | |
737 | case 'c': | |
738 | case 'd': | |
739 | case 'D': | |
740 | case 'h': | |
741 | case 'i': | |
742 | case 'l': | |
743 | case 'M': | |
744 | case 'm': | |
745 | case 'n': | |
746 | case 'p': | |
747 | case 's': | |
748 | case 'u': | |
749 | case 'U': | |
750 | case 'v': | |
599cee73 PM |
751 | case 'W': |
752 | case 'X': | |
6224f72b GS |
753 | case 'w': |
754 | if (s = moreswitches(s)) | |
755 | goto reswitch; | |
756 | break; | |
33b78306 | 757 | |
6224f72b | 758 | case 'T': |
3280af22 | 759 | PL_tainting = TRUE; |
6224f72b GS |
760 | s++; |
761 | goto reswitch; | |
f86702cc | 762 | |
6224f72b | 763 | case 'e': |
3280af22 | 764 | if (PL_euid != PL_uid || PL_egid != PL_gid) |
6224f72b | 765 | croak("No -e allowed in setuid scripts"); |
3280af22 NIS |
766 | if (!PL_e_script) { |
767 | PL_e_script = newSVpv("",0); | |
6224f72b GS |
768 | filter_add(read_e_script, NULL); |
769 | } | |
770 | if (*++s) | |
3280af22 | 771 | sv_catpv(PL_e_script, s); |
6224f72b | 772 | else if (argv[1]) { |
3280af22 | 773 | sv_catpv(PL_e_script, argv[1]); |
6224f72b GS |
774 | argc--,argv++; |
775 | } | |
776 | else | |
777 | croak("No code specified for -e"); | |
3280af22 | 778 | sv_catpv(PL_e_script, "\n"); |
6224f72b | 779 | break; |
afe37c7d | 780 | |
6224f72b GS |
781 | case 'I': /* -I handled both here and in moreswitches() */ |
782 | forbid_setid("-I"); | |
783 | if (!*++s && (s=argv[1]) != Nullch) { | |
784 | argc--,argv++; | |
785 | } | |
786 | while (s && isSPACE(*s)) | |
787 | ++s; | |
788 | if (s && *s) { | |
789 | char *e, *p; | |
790 | for (e = s; *e && !isSPACE(*e); e++) ; | |
791 | p = savepvn(s, e-s); | |
792 | incpush(p, TRUE); | |
793 | sv_catpv(sv,"-I"); | |
794 | sv_catpv(sv,p); | |
795 | sv_catpv(sv," "); | |
796 | Safefree(p); | |
797 | } /* XXX else croak? */ | |
798 | break; | |
799 | case 'P': | |
800 | forbid_setid("-P"); | |
3280af22 | 801 | PL_preprocess = TRUE; |
6224f72b GS |
802 | s++; |
803 | goto reswitch; | |
804 | case 'S': | |
805 | forbid_setid("-S"); | |
806 | dosearch = TRUE; | |
807 | s++; | |
808 | goto reswitch; | |
809 | case 'V': | |
3280af22 NIS |
810 | if (!PL_preambleav) |
811 | PL_preambleav = newAV(); | |
812 | av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0)); | |
6224f72b | 813 | if (*++s != ':') { |
3280af22 | 814 | PL_Sv = newSVpv("print myconfig();",0); |
6224f72b | 815 | #ifdef VMS |
6b88bc9c | 816 | sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\","); |
6224f72b | 817 | #else |
3280af22 | 818 | sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\","); |
6224f72b | 819 | #endif |
22c35a8c | 820 | #if defined(DEBUGGING) || defined(MULTIPLICITY) |
3280af22 | 821 | sv_catpv(PL_Sv,"\" Compile-time options:"); |
6224f72b | 822 | # ifdef DEBUGGING |
3280af22 | 823 | sv_catpv(PL_Sv," DEBUGGING"); |
6224f72b | 824 | # endif |
6224f72b | 825 | # ifdef MULTIPLICITY |
8f872242 | 826 | sv_catpv(PL_Sv," MULTIPLICITY"); |
6224f72b | 827 | # endif |
3280af22 | 828 | sv_catpv(PL_Sv,"\\n\","); |
6224f72b GS |
829 | #endif |
830 | #if defined(LOCAL_PATCH_COUNT) | |
831 | if (LOCAL_PATCH_COUNT > 0) { | |
832 | int i; | |
3280af22 | 833 | sv_catpv(PL_Sv,"\" Locally applied patches:\\n\","); |
6224f72b | 834 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { |
3280af22 | 835 | if (PL_localpatches[i]) |
642653c7 | 836 | sv_catpvf(PL_Sv,"q\" \t%s\n\",",PL_localpatches[i]); |
6224f72b GS |
837 | } |
838 | } | |
839 | #endif | |
3280af22 | 840 | sv_catpvf(PL_Sv,"\" Built under %s\\n\"",OSNAME); |
6224f72b GS |
841 | #ifdef __DATE__ |
842 | # ifdef __TIME__ | |
3280af22 | 843 | sv_catpvf(PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__); |
6224f72b | 844 | # else |
6b88bc9c | 845 | sv_catpvf(PL_Sv,",\" Compiled on %s\\n\"",__DATE__); |
6224f72b GS |
846 | # endif |
847 | #endif | |
3280af22 | 848 | sv_catpv(PL_Sv, "; \ |
6224f72b GS |
849 | $\"=\"\\n \"; \ |
850 | @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; \ | |
851 | print \" \\%ENV:\\n @env\\n\" if @env; \ | |
852 | print \" \\@INC:\\n @INC\\n\";"); | |
853 | } | |
854 | else { | |
3280af22 NIS |
855 | PL_Sv = newSVpv("config_vars(qw(",0); |
856 | sv_catpv(PL_Sv, ++s); | |
857 | sv_catpv(PL_Sv, "))"); | |
6224f72b GS |
858 | s += strlen(s); |
859 | } | |
3280af22 | 860 | av_push(PL_preambleav, PL_Sv); |
6224f72b GS |
861 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
862 | goto reswitch; | |
863 | case 'x': | |
3280af22 | 864 | PL_doextract = TRUE; |
6224f72b GS |
865 | s++; |
866 | if (*s) | |
3280af22 | 867 | PL_cddir = savepv(s); |
6224f72b GS |
868 | break; |
869 | case 0: | |
870 | break; | |
871 | case '-': | |
872 | if (!*++s || isSPACE(*s)) { | |
873 | argc--,argv++; | |
874 | goto switch_end; | |
875 | } | |
876 | /* catch use of gnu style long options */ | |
877 | if (strEQ(s, "version")) { | |
878 | s = "v"; | |
879 | goto reswitch; | |
880 | } | |
881 | if (strEQ(s, "help")) { | |
882 | s = "h"; | |
883 | goto reswitch; | |
884 | } | |
885 | s--; | |
886 | /* FALL THROUGH */ | |
887 | default: | |
888 | croak("Unrecognized switch: -%s (-h will show valid options)",s); | |
8d063cd8 LW |
889 | } |
890 | } | |
6224f72b | 891 | switch_end: |
54310121 | 892 | |
3280af22 | 893 | if (!PL_tainting && (s = PerlEnv_getenv("PERL5OPT"))) { |
6224f72b GS |
894 | while (s && *s) { |
895 | while (isSPACE(*s)) | |
896 | s++; | |
897 | if (*s == '-') { | |
898 | s++; | |
899 | if (isSPACE(*s)) | |
900 | continue; | |
901 | } | |
902 | if (!*s) | |
903 | break; | |
904 | if (!strchr("DIMUdmw", *s)) | |
905 | croak("Illegal switch in PERL5OPT: -%c", *s); | |
906 | s = moreswitches(s); | |
907 | } | |
908 | } | |
a0d0e21e | 909 | |
6224f72b GS |
910 | if (!scriptname) |
911 | scriptname = argv[0]; | |
3280af22 | 912 | if (PL_e_script) { |
6224f72b GS |
913 | argc++,argv--; |
914 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ | |
915 | } | |
916 | else if (scriptname == Nullch) { | |
917 | #ifdef MSDOS | |
918 | if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) ) | |
919 | moreswitches("h"); | |
920 | #endif | |
921 | scriptname = "-"; | |
922 | } | |
923 | ||
924 | init_perllib(); | |
925 | ||
926 | open_script(scriptname,dosearch,sv,&fdscript); | |
927 | ||
928 | validate_suid(validarg, scriptname,fdscript); | |
929 | ||
3280af22 | 930 | if (PL_doextract) |
6224f72b GS |
931 | find_beginning(); |
932 | ||
3280af22 NIS |
933 | PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0); |
934 | sv_upgrade((SV *)PL_compcv, SVt_PVCV); | |
935 | CvUNIQUE_on(PL_compcv); | |
936 | ||
937 | PL_comppad = newAV(); | |
938 | av_push(PL_comppad, Nullsv); | |
939 | PL_curpad = AvARRAY(PL_comppad); | |
940 | PL_comppad_name = newAV(); | |
941 | PL_comppad_name_fill = 0; | |
942 | PL_min_intro_pending = 0; | |
943 | PL_padix = 0; | |
6224f72b | 944 | #ifdef USE_THREADS |
533c011a NIS |
945 | av_store(PL_comppad_name, 0, newSVpv("@_", 2)); |
946 | PL_curpad[0] = (SV*)newAV(); | |
947 | SvPADMY_on(PL_curpad[0]); /* XXX Needed? */ | |
948 | CvOWNER(PL_compcv) = 0; | |
949 | New(666, CvMUTEXP(PL_compcv), 1, perl_mutex); | |
950 | MUTEX_INIT(CvMUTEXP(PL_compcv)); | |
6224f72b GS |
951 | #endif /* USE_THREADS */ |
952 | ||
953 | comppadlist = newAV(); | |
954 | AvREAL_off(comppadlist); | |
3280af22 NIS |
955 | av_store(comppadlist, 0, (SV*)PL_comppad_name); |
956 | av_store(comppadlist, 1, (SV*)PL_comppad); | |
957 | CvPADLIST(PL_compcv) = comppadlist; | |
6224f72b GS |
958 | |
959 | boot_core_UNIVERSAL(); | |
960 | ||
961 | if (xsinit) | |
962 | (*xsinit)(PERL_OBJECT_THIS); /* in case linked C routines want magical variables */ | |
963 | #if defined(VMS) || defined(WIN32) || defined(DJGPP) | |
964 | init_os_extras(); | |
965 | #endif | |
966 | ||
967 | init_predump_symbols(); | |
968 | /* init_postdump_symbols not currently designed to be called */ | |
969 | /* more than once (ENV isn't cleared first, for example) */ | |
970 | /* But running with -u leaves %ENV & @ARGV undefined! XXX */ | |
3280af22 | 971 | if (!PL_do_undump) |
6224f72b GS |
972 | init_postdump_symbols(argc,argv,env); |
973 | ||
974 | init_lexer(); | |
975 | ||
976 | /* now parse the script */ | |
977 | ||
978 | SETERRNO(0,SS$_NORMAL); | |
3280af22 NIS |
979 | PL_error_count = 0; |
980 | if (yyparse() || PL_error_count) { | |
981 | if (PL_minus_c) | |
982 | croak("%s had compilation errors.\n", PL_origfilename); | |
6224f72b GS |
983 | else { |
984 | croak("Execution of %s aborted due to compilation errors.\n", | |
3280af22 | 985 | PL_origfilename); |
6224f72b GS |
986 | } |
987 | } | |
3280af22 NIS |
988 | PL_curcop->cop_line = 0; |
989 | PL_curstash = PL_defstash; | |
990 | PL_preprocess = FALSE; | |
991 | if (PL_e_script) { | |
992 | SvREFCNT_dec(PL_e_script); | |
993 | PL_e_script = Nullsv; | |
6224f72b GS |
994 | } |
995 | ||
996 | /* now that script is parsed, we can modify record separator */ | |
3280af22 NIS |
997 | SvREFCNT_dec(PL_rs); |
998 | PL_rs = SvREFCNT_inc(PL_nrs); | |
999 | sv_setsv(perl_get_sv("/", TRUE), PL_rs); | |
1000 | if (PL_do_undump) | |
6224f72b GS |
1001 | my_unexec(); |
1002 | ||
599cee73 | 1003 | if (ckWARN(WARN_ONCE)) |
3280af22 | 1004 | gv_check(PL_defstash); |
6224f72b GS |
1005 | |
1006 | LEAVE; | |
1007 | FREETMPS; | |
1008 | ||
1009 | #ifdef MYMALLOC | |
1010 | if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) | |
1011 | dump_mstats("after compilation:"); | |
1012 | #endif | |
1013 | ||
1014 | ENTER; | |
3280af22 | 1015 | PL_restartop = 0; |
6224f72b GS |
1016 | JMPENV_POP; |
1017 | return 0; | |
1018 | } | |
1019 | ||
1020 | int | |
1021 | #ifdef PERL_OBJECT | |
22c35a8c | 1022 | perl_run(void) |
6224f72b GS |
1023 | #else |
1024 | perl_run(PerlInterpreter *sv_interp) | |
1025 | #endif | |
1026 | { | |
de616352 | 1027 | dTHR; |
6224f72b GS |
1028 | I32 oldscope; |
1029 | dJMPENV; | |
1030 | int ret; | |
1031 | ||
1032 | #ifndef PERL_OBJECT | |
3280af22 | 1033 | if (!(PL_curinterp = sv_interp)) |
6224f72b GS |
1034 | return 255; |
1035 | #endif | |
1036 | ||
3280af22 | 1037 | oldscope = PL_scopestack_ix; |
6224f72b GS |
1038 | |
1039 | JMPENV_PUSH(ret); | |
1040 | switch (ret) { | |
1041 | case 1: | |
1042 | cxstack_ix = -1; /* start context stack again */ | |
1043 | break; | |
1044 | case 2: | |
1045 | /* my_exit() was called */ | |
3280af22 | 1046 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
1047 | LEAVE; |
1048 | FREETMPS; | |
3280af22 NIS |
1049 | PL_curstash = PL_defstash; |
1050 | if (PL_endav) | |
1051 | call_list(oldscope, PL_endav); | |
6224f72b GS |
1052 | #ifdef MYMALLOC |
1053 | if (PerlEnv_getenv("PERL_DEBUG_MSTATS")) | |
1054 | dump_mstats("after execution: "); | |
1055 | #endif | |
1056 | JMPENV_POP; | |
1057 | return STATUS_NATIVE_EXPORT; | |
1058 | case 3: | |
3280af22 | 1059 | if (!PL_restartop) { |
6224f72b GS |
1060 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
1061 | FREETMPS; | |
1062 | JMPENV_POP; | |
1063 | return 1; | |
1064 | } | |
3280af22 | 1065 | POPSTACK_TO(PL_mainstack); |
6224f72b GS |
1066 | break; |
1067 | } | |
1068 | ||
1069 | DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n", | |
3280af22 | 1070 | PL_sawampersand ? "Enabling" : "Omitting")); |
6224f72b | 1071 | |
3280af22 | 1072 | if (!PL_restartop) { |
6224f72b GS |
1073 | DEBUG_x(dump_all()); |
1074 | DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); | |
8b73bbec | 1075 | DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%lx\n", |
6224f72b | 1076 | (unsigned long) thr)); |
6224f72b | 1077 | |
3280af22 NIS |
1078 | if (PL_minus_c) { |
1079 | PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", PL_origfilename); | |
6224f72b GS |
1080 | my_exit(0); |
1081 | } | |
3280af22 NIS |
1082 | if (PERLDB_SINGLE && PL_DBsingle) |
1083 | sv_setiv(PL_DBsingle, 1); | |
1084 | if (PL_initav) | |
1085 | call_list(oldscope, PL_initav); | |
6224f72b GS |
1086 | } |
1087 | ||
1088 | /* do it */ | |
1089 | ||
3280af22 | 1090 | if (PL_restartop) { |
533c011a | 1091 | PL_op = PL_restartop; |
3280af22 | 1092 | PL_restartop = 0; |
6224f72b GS |
1093 | CALLRUNOPS(); |
1094 | } | |
3280af22 NIS |
1095 | else if (PL_main_start) { |
1096 | CvDEPTH(PL_main_cv) = 1; | |
533c011a | 1097 | PL_op = PL_main_start; |
6224f72b GS |
1098 | CALLRUNOPS(); |
1099 | } | |
1100 | ||
1101 | my_exit(0); | |
1102 | /* NOTREACHED */ | |
1103 | return 0; | |
1104 | } | |
1105 | ||
1106 | SV* | |
1107 | perl_get_sv(char *name, I32 create) | |
1108 | { | |
1109 | GV *gv; | |
1110 | #ifdef USE_THREADS | |
1111 | if (name[1] == '\0' && !isALPHA(name[0])) { | |
1112 | PADOFFSET tmp = find_threadsv(name); | |
1113 | if (tmp != NOT_IN_PAD) { | |
1114 | dTHR; | |
1115 | return THREADSV(tmp); | |
1116 | } | |
1117 | } | |
1118 | #endif /* USE_THREADS */ | |
1119 | gv = gv_fetchpv(name, create, SVt_PV); | |
1120 | if (gv) | |
1121 | return GvSV(gv); | |
1122 | return Nullsv; | |
1123 | } | |
1124 | ||
1125 | AV* | |
1126 | perl_get_av(char *name, I32 create) | |
1127 | { | |
1128 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); | |
1129 | if (create) | |
1130 | return GvAVn(gv); | |
1131 | if (gv) | |
1132 | return GvAV(gv); | |
1133 | return Nullav; | |
1134 | } | |
1135 | ||
1136 | HV* | |
1137 | perl_get_hv(char *name, I32 create) | |
1138 | { | |
a0d0e21e LW |
1139 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); |
1140 | if (create) | |
1141 | return GvHVn(gv); | |
1142 | if (gv) | |
1143 | return GvHV(gv); | |
1144 | return Nullhv; | |
1145 | } | |
1146 | ||
1147 | CV* | |
8ac85365 | 1148 | perl_get_cv(char *name, I32 create) |
a0d0e21e LW |
1149 | { |
1150 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); | |
b099ddc0 | 1151 | /* XXX unsafe for threads if eval_owner isn't held */ |
8ebc5c01 | 1152 | if (create && !GvCVu(gv)) |
774d564b | 1153 | return newSUB(start_subparse(FALSE, 0), |
a0d0e21e | 1154 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
4633a7c4 | 1155 | Nullop, |
a0d0e21e LW |
1156 | Nullop); |
1157 | if (gv) | |
8ebc5c01 | 1158 | return GvCVu(gv); |
a0d0e21e LW |
1159 | return Nullcv; |
1160 | } | |
1161 | ||
79072805 LW |
1162 | /* Be sure to refetch the stack pointer after calling these routines. */ |
1163 | ||
a0d0e21e | 1164 | I32 |
22239a37 | 1165 | perl_call_argv(char *sub_name, I32 flags, register char **argv) |
8ac85365 NIS |
1166 | |
1167 | /* See G_* flags in cop.h */ | |
1168 | /* null terminated arg list */ | |
8990e307 | 1169 | { |
a0d0e21e | 1170 | dSP; |
8990e307 | 1171 | |
924508f0 | 1172 | PUSHMARK(SP); |
a0d0e21e | 1173 | if (argv) { |
8990e307 | 1174 | while (*argv) { |
a0d0e21e | 1175 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 LW |
1176 | argv++; |
1177 | } | |
a0d0e21e | 1178 | PUTBACK; |
8990e307 | 1179 | } |
22239a37 | 1180 | return perl_call_pv(sub_name, flags); |
8990e307 LW |
1181 | } |
1182 | ||
a0d0e21e | 1183 | I32 |
22239a37 | 1184 | perl_call_pv(char *sub_name, I32 flags) |
8ac85365 NIS |
1185 | /* name of the subroutine */ |
1186 | /* See G_* flags in cop.h */ | |
a0d0e21e | 1187 | { |
22239a37 | 1188 | return perl_call_sv((SV*)perl_get_cv(sub_name, TRUE), flags); |
a0d0e21e LW |
1189 | } |
1190 | ||
1191 | I32 | |
8ac85365 NIS |
1192 | perl_call_method(char *methname, I32 flags) |
1193 | /* name of the subroutine */ | |
1194 | /* See G_* flags in cop.h */ | |
a0d0e21e LW |
1195 | { |
1196 | dSP; | |
1197 | OP myop; | |
533c011a NIS |
1198 | if (!PL_op) |
1199 | PL_op = &myop; | |
a0d0e21e LW |
1200 | XPUSHs(sv_2mortal(newSVpv(methname,0))); |
1201 | PUTBACK; | |
11343788 | 1202 | pp_method(ARGS); |
533c011a NIS |
1203 | if(PL_op == &myop) |
1204 | PL_op = Nullop; | |
3280af22 | 1205 | return perl_call_sv(*PL_stack_sp--, flags); |
a0d0e21e LW |
1206 | } |
1207 | ||
1208 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
1209 | I32 | |
8ac85365 NIS |
1210 | perl_call_sv(SV *sv, I32 flags) |
1211 | ||
1212 | /* See G_* flags in cop.h */ | |
a0d0e21e | 1213 | { |
924508f0 | 1214 | dSP; |
a0d0e21e | 1215 | LOGOP myop; /* fake syntax tree node */ |
aa689395 | 1216 | I32 oldmark; |
a0d0e21e | 1217 | I32 retval; |
a0d0e21e | 1218 | I32 oldscope; |
54310121 | 1219 | bool oldcatch = CATCH_GET; |
1220 | dJMPENV; | |
6224f72b | 1221 | int ret; |
533c011a | 1222 | OP* oldop = PL_op; |
1e422769 | 1223 | |
a0d0e21e LW |
1224 | if (flags & G_DISCARD) { |
1225 | ENTER; | |
1226 | SAVETMPS; | |
1227 | } | |
1228 | ||
aa689395 | 1229 | Zero(&myop, 1, LOGOP); |
54310121 | 1230 | myop.op_next = Nullop; |
f51d4af5 | 1231 | if (!(flags & G_NOARGS)) |
aa689395 | 1232 | myop.op_flags |= OPf_STACKED; |
54310121 | 1233 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
1234 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
1235 | OPf_WANT_SCALAR); | |
462e5cf6 | 1236 | SAVEOP(); |
533c011a | 1237 | PL_op = (OP*)&myop; |
aa689395 | 1238 | |
3280af22 NIS |
1239 | EXTEND(PL_stack_sp, 1); |
1240 | *++PL_stack_sp = sv; | |
aa689395 | 1241 | oldmark = TOPMARK; |
3280af22 | 1242 | oldscope = PL_scopestack_ix; |
a0d0e21e | 1243 | |
3280af22 | 1244 | if (PERLDB_SUB && PL_curstash != PL_debstash |
36477c24 | 1245 | /* Handle first BEGIN of -d. */ |
3280af22 | 1246 | && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub))) |
36477c24 | 1247 | /* Try harder, since this may have been a sighandler, thus |
1248 | * curstash may be meaningless. */ | |
3280af22 | 1249 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash) |
491527d0 | 1250 | && !(flags & G_NODEBUG)) |
533c011a | 1251 | PL_op->op_private |= OPpENTERSUB_DB; |
a0d0e21e LW |
1252 | |
1253 | if (flags & G_EVAL) { | |
533c011a | 1254 | cLOGOP->op_other = PL_op; |
3280af22 | 1255 | PL_markstack_ptr--; |
4633a7c4 LW |
1256 | /* we're trying to emulate pp_entertry() here */ |
1257 | { | |
c09156bb | 1258 | register PERL_CONTEXT *cx; |
54310121 | 1259 | I32 gimme = GIMME_V; |
4633a7c4 LW |
1260 | |
1261 | ENTER; | |
1262 | SAVETMPS; | |
1263 | ||
533c011a | 1264 | push_return(PL_op->op_next); |
3280af22 | 1265 | PUSHBLOCK(cx, CXt_EVAL, PL_stack_sp); |
4633a7c4 | 1266 | PUSHEVAL(cx, 0, 0); |
533c011a | 1267 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ |
4633a7c4 | 1268 | |
3280af22 | 1269 | PL_in_eval = 1; |
4633a7c4 | 1270 | if (flags & G_KEEPERR) |
3280af22 | 1271 | PL_in_eval |= 4; |
4633a7c4 | 1272 | else |
38a03e6e | 1273 | sv_setpv(ERRSV,""); |
4633a7c4 | 1274 | } |
3280af22 | 1275 | PL_markstack_ptr++; |
a0d0e21e | 1276 | |
6224f72b GS |
1277 | JMPENV_PUSH(ret); |
1278 | switch (ret) { | |
1279 | case 0: | |
a0d0e21e | 1280 | break; |
6224f72b | 1281 | case 1: |
f86702cc | 1282 | STATUS_ALL_FAILURE; |
a0d0e21e | 1283 | /* FALL THROUGH */ |
6224f72b | 1284 | case 2: |
a0d0e21e | 1285 | /* my_exit() was called */ |
3280af22 | 1286 | PL_curstash = PL_defstash; |
a0d0e21e | 1287 | FREETMPS; |
54310121 | 1288 | JMPENV_POP; |
3280af22 | 1289 | if (PL_statusvalue) |
a0d0e21e | 1290 | croak("Callback called exit"); |
f86702cc | 1291 | my_exit_jump(); |
a0d0e21e | 1292 | /* NOTREACHED */ |
6224f72b | 1293 | case 3: |
3280af22 | 1294 | if (PL_restartop) { |
533c011a | 1295 | PL_op = PL_restartop; |
3280af22 | 1296 | PL_restartop = 0; |
54310121 | 1297 | break; |
a0d0e21e | 1298 | } |
3280af22 | 1299 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
1300 | if (flags & G_ARRAY) |
1301 | retval = 0; | |
1302 | else { | |
1303 | retval = 1; | |
3280af22 | 1304 | *++PL_stack_sp = &PL_sv_undef; |
a0d0e21e LW |
1305 | } |
1306 | goto cleanup; | |
1307 | } | |
1308 | } | |
1e422769 | 1309 | else |
54310121 | 1310 | CATCH_SET(TRUE); |
a0d0e21e | 1311 | |
533c011a NIS |
1312 | if (PL_op == (OP*)&myop) |
1313 | PL_op = pp_entersub(ARGS); | |
1314 | if (PL_op) | |
76e3520e | 1315 | CALLRUNOPS(); |
3280af22 | 1316 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
4633a7c4 | 1317 | if ((flags & G_EVAL) && !(flags & G_KEEPERR)) |
38a03e6e | 1318 | sv_setpv(ERRSV,""); |
a0d0e21e LW |
1319 | |
1320 | cleanup: | |
1321 | if (flags & G_EVAL) { | |
3280af22 | 1322 | if (PL_scopestack_ix > oldscope) { |
a0a2876f LW |
1323 | SV **newsp; |
1324 | PMOP *newpm; | |
1325 | I32 gimme; | |
c09156bb | 1326 | register PERL_CONTEXT *cx; |
a0a2876f LW |
1327 | I32 optype; |
1328 | ||
1329 | POPBLOCK(cx,newpm); | |
1330 | POPEVAL(cx); | |
1331 | pop_return(); | |
3280af22 | 1332 | PL_curpm = newpm; |
a0a2876f | 1333 | LEAVE; |
a0d0e21e | 1334 | } |
54310121 | 1335 | JMPENV_POP; |
a0d0e21e | 1336 | } |
1e422769 | 1337 | else |
54310121 | 1338 | CATCH_SET(oldcatch); |
1e422769 | 1339 | |
a0d0e21e | 1340 | if (flags & G_DISCARD) { |
3280af22 | 1341 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
1342 | retval = 0; |
1343 | FREETMPS; | |
1344 | LEAVE; | |
1345 | } | |
533c011a | 1346 | PL_op = oldop; |
a0d0e21e LW |
1347 | return retval; |
1348 | } | |
1349 | ||
6e72f9df | 1350 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 | 1351 | |
a0d0e21e | 1352 | I32 |
8ac85365 NIS |
1353 | perl_eval_sv(SV *sv, I32 flags) |
1354 | ||
1355 | /* See G_* flags in cop.h */ | |
a0d0e21e | 1356 | { |
924508f0 | 1357 | dSP; |
a0d0e21e | 1358 | UNOP myop; /* fake syntax tree node */ |
3280af22 | 1359 | I32 oldmark = SP - PL_stack_base; |
4633a7c4 | 1360 | I32 retval; |
4633a7c4 | 1361 | I32 oldscope; |
54310121 | 1362 | dJMPENV; |
6224f72b | 1363 | int ret; |
533c011a | 1364 | OP* oldop = PL_op; |
84902520 | 1365 | |
4633a7c4 LW |
1366 | if (flags & G_DISCARD) { |
1367 | ENTER; | |
1368 | SAVETMPS; | |
1369 | } | |
1370 | ||
462e5cf6 | 1371 | SAVEOP(); |
533c011a NIS |
1372 | PL_op = (OP*)&myop; |
1373 | Zero(PL_op, 1, UNOP); | |
3280af22 NIS |
1374 | EXTEND(PL_stack_sp, 1); |
1375 | *++PL_stack_sp = sv; | |
1376 | oldscope = PL_scopestack_ix; | |
79072805 | 1377 | |
4633a7c4 LW |
1378 | if (!(flags & G_NOARGS)) |
1379 | myop.op_flags = OPf_STACKED; | |
79072805 | 1380 | myop.op_next = Nullop; |
6e72f9df | 1381 | myop.op_type = OP_ENTEREVAL; |
54310121 | 1382 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
1383 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
1384 | OPf_WANT_SCALAR); | |
6e72f9df | 1385 | if (flags & G_KEEPERR) |
1386 | myop.op_flags |= OPf_SPECIAL; | |
4633a7c4 | 1387 | |
6224f72b GS |
1388 | JMPENV_PUSH(ret); |
1389 | switch (ret) { | |
1390 | case 0: | |
4633a7c4 | 1391 | break; |
6224f72b | 1392 | case 1: |
f86702cc | 1393 | STATUS_ALL_FAILURE; |
4633a7c4 | 1394 | /* FALL THROUGH */ |
6224f72b | 1395 | case 2: |
4633a7c4 | 1396 | /* my_exit() was called */ |
3280af22 | 1397 | PL_curstash = PL_defstash; |
4633a7c4 | 1398 | FREETMPS; |
54310121 | 1399 | JMPENV_POP; |
3280af22 | 1400 | if (PL_statusvalue) |
4633a7c4 | 1401 | croak("Callback called exit"); |
f86702cc | 1402 | my_exit_jump(); |
4633a7c4 | 1403 | /* NOTREACHED */ |
6224f72b | 1404 | case 3: |
3280af22 | 1405 | if (PL_restartop) { |
533c011a | 1406 | PL_op = PL_restartop; |
3280af22 | 1407 | PL_restartop = 0; |
54310121 | 1408 | break; |
4633a7c4 | 1409 | } |
3280af22 | 1410 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
1411 | if (flags & G_ARRAY) |
1412 | retval = 0; | |
1413 | else { | |
1414 | retval = 1; | |
3280af22 | 1415 | *++PL_stack_sp = &PL_sv_undef; |
4633a7c4 LW |
1416 | } |
1417 | goto cleanup; | |
1418 | } | |
1419 | ||
533c011a NIS |
1420 | if (PL_op == (OP*)&myop) |
1421 | PL_op = pp_entereval(ARGS); | |
1422 | if (PL_op) | |
76e3520e | 1423 | CALLRUNOPS(); |
3280af22 | 1424 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
6e72f9df | 1425 | if (!(flags & G_KEEPERR)) |
38a03e6e | 1426 | sv_setpv(ERRSV,""); |
4633a7c4 LW |
1427 | |
1428 | cleanup: | |
54310121 | 1429 | JMPENV_POP; |
4633a7c4 | 1430 | if (flags & G_DISCARD) { |
3280af22 | 1431 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
1432 | retval = 0; |
1433 | FREETMPS; | |
1434 | LEAVE; | |
1435 | } | |
533c011a | 1436 | PL_op = oldop; |
4633a7c4 LW |
1437 | return retval; |
1438 | } | |
1439 | ||
137443ea | 1440 | SV* |
8ac85365 | 1441 | perl_eval_pv(char *p, I32 croak_on_error) |
137443ea | 1442 | { |
1443 | dSP; | |
1444 | SV* sv = newSVpv(p, 0); | |
1445 | ||
924508f0 | 1446 | PUSHMARK(SP); |
137443ea | 1447 | perl_eval_sv(sv, G_SCALAR); |
1448 | SvREFCNT_dec(sv); | |
1449 | ||
1450 | SPAGAIN; | |
1451 | sv = POPs; | |
1452 | PUTBACK; | |
1453 | ||
2d8e6c8d GS |
1454 | if (croak_on_error && SvTRUE(ERRSV)) { |
1455 | STRLEN n_a; | |
1456 | croak(SvPVx(ERRSV, n_a)); | |
1457 | } | |
137443ea | 1458 | |
1459 | return sv; | |
1460 | } | |
1461 | ||
4633a7c4 LW |
1462 | /* Require a module. */ |
1463 | ||
1464 | void | |
8ac85365 | 1465 | perl_require_pv(char *pv) |
4633a7c4 | 1466 | { |
d3acc0f7 JP |
1467 | SV* sv; |
1468 | dSP; | |
e788e7d3 | 1469 | PUSHSTACKi(PERLSI_REQUIRE); |
d3acc0f7 JP |
1470 | PUTBACK; |
1471 | sv = sv_newmortal(); | |
4633a7c4 LW |
1472 | sv_setpv(sv, "require '"); |
1473 | sv_catpv(sv, pv); | |
1474 | sv_catpv(sv, "'"); | |
1475 | perl_eval_sv(sv, G_DISCARD); | |
d3acc0f7 JP |
1476 | SPAGAIN; |
1477 | POPSTACK; | |
79072805 LW |
1478 | } |
1479 | ||
79072805 | 1480 | void |
8ac85365 | 1481 | magicname(char *sym, char *name, I32 namlen) |
79072805 LW |
1482 | { |
1483 | register GV *gv; | |
1484 | ||
85e6fe83 | 1485 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 LW |
1486 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
1487 | } | |
1488 | ||
76e3520e | 1489 | STATIC void |
8ac85365 NIS |
1490 | usage(char *name) /* XXX move this out into a module ? */ |
1491 | ||
4633a7c4 | 1492 | { |
ab821d7f | 1493 | /* This message really ought to be max 23 lines. |
1494 | * Removed -h because the user already knows that opton. Others? */ | |
fb73857a | 1495 | |
76e3520e | 1496 | static char *usage_msg[] = { |
fb73857a | 1497 | "-0[octal] specify record separator (\\0, if no argument)", |
1498 | "-a autosplit mode with -n or -p (splits $_ into @F)", | |
1499 | "-c check syntax only (runs BEGIN and END blocks)", | |
1500 | "-d[:debugger] run scripts under debugger", | |
1501 | "-D[number/list] set debugging flags (argument is a bit mask or flags)", | |
1502 | "-e 'command' one line of script. Several -e's allowed. Omit [programfile].", | |
1503 | "-F/pattern/ split() pattern for autosplit (-a). The //'s are optional.", | |
1504 | "-i[extension] edit <> files in place (make backup if extension supplied)", | |
1505 | "-Idirectory specify @INC/#include directory (may be used more than once)", | |
1506 | "-l[octal] enable line ending processing, specifies line terminator", | |
1507 | "-[mM][-]module.. executes `use/no module...' before executing your script.", | |
1508 | "-n assume 'while (<>) { ... }' loop around your script", | |
1509 | "-p assume loop like -n but print line also like sed", | |
1510 | "-P run script through C preprocessor before compilation", | |
1511 | "-s enable some switch parsing for switches after script name", | |
1512 | "-S look for the script using PATH environment variable", | |
1513 | "-T turn on tainting checks", | |
1514 | "-u dump core after parsing script", | |
1515 | "-U allow unsafe operations", | |
95103687 | 1516 | "-v print version number, patchlevel plus VERY IMPORTANT perl info", |
fb73857a | 1517 | "-V[:variable] print perl configuration information", |
1518 | "-w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT. Recommended.", | |
1519 | "-x[directory] strip off text before #!perl line and perhaps cd to directory", | |
1520 | "\n", | |
1521 | NULL | |
1522 | }; | |
76e3520e | 1523 | char **p = usage_msg; |
fb73857a | 1524 | |
ab821d7f | 1525 | printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name); |
fb73857a | 1526 | while (*p) |
1527 | printf("\n %s", *p++); | |
4633a7c4 LW |
1528 | } |
1529 | ||
79072805 LW |
1530 | /* This routine handles any switches that can be given during run */ |
1531 | ||
1532 | char * | |
8ac85365 | 1533 | moreswitches(char *s) |
79072805 LW |
1534 | { |
1535 | I32 numlen; | |
c07a80fd | 1536 | U32 rschar; |
79072805 LW |
1537 | |
1538 | switch (*s) { | |
1539 | case '0': | |
a863c7d1 MB |
1540 | { |
1541 | dTHR; | |
c07a80fd | 1542 | rschar = scan_oct(s, 4, &numlen); |
3280af22 | 1543 | SvREFCNT_dec(PL_nrs); |
c07a80fd | 1544 | if (rschar & ~((U8)~0)) |
3280af22 | 1545 | PL_nrs = &PL_sv_undef; |
c07a80fd | 1546 | else if (!rschar && numlen >= 2) |
3280af22 | 1547 | PL_nrs = newSVpv("", 0); |
c07a80fd | 1548 | else { |
1549 | char ch = rschar; | |
3280af22 | 1550 | PL_nrs = newSVpv(&ch, 1); |
79072805 LW |
1551 | } |
1552 | return s + numlen; | |
a863c7d1 | 1553 | } |
2304df62 | 1554 | case 'F': |
3280af22 NIS |
1555 | PL_minus_F = TRUE; |
1556 | PL_splitstr = savepv(s + 1); | |
2304df62 AD |
1557 | s += strlen(s); |
1558 | return s; | |
79072805 | 1559 | case 'a': |
3280af22 | 1560 | PL_minus_a = TRUE; |
79072805 LW |
1561 | s++; |
1562 | return s; | |
1563 | case 'c': | |
3280af22 | 1564 | PL_minus_c = TRUE; |
79072805 LW |
1565 | s++; |
1566 | return s; | |
1567 | case 'd': | |
bbce6d69 | 1568 | forbid_setid("-d"); |
4633a7c4 | 1569 | s++; |
c07a80fd | 1570 | if (*s == ':' || *s == '=') { |
46fc3d4c | 1571 | my_setenv("PERL5DB", form("use Devel::%s;", ++s)); |
4633a7c4 | 1572 | s += strlen(s); |
4633a7c4 | 1573 | } |
3280af22 NIS |
1574 | if (!PL_perldb) { |
1575 | PL_perldb = PERLDB_ALL; | |
a0d0e21e LW |
1576 | init_debugger(); |
1577 | } | |
79072805 LW |
1578 | return s; |
1579 | case 'D': | |
1580 | #ifdef DEBUGGING | |
bbce6d69 | 1581 | forbid_setid("-D"); |
79072805 | 1582 | if (isALPHA(s[1])) { |
8b73bbec | 1583 | static char debopts[] = "psltocPmfrxuLHXDS"; |
79072805 LW |
1584 | char *d; |
1585 | ||
93a17b20 | 1586 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
3280af22 | 1587 | PL_debug |= 1 << (d - debopts); |
79072805 LW |
1588 | } |
1589 | else { | |
3280af22 | 1590 | PL_debug = atoi(s+1); |
79072805 LW |
1591 | for (s++; isDIGIT(*s); s++) ; |
1592 | } | |
3280af22 | 1593 | PL_debug |= 0x80000000; |
79072805 LW |
1594 | #else |
1595 | warn("Recompile perl with -DDEBUGGING to use -D switch\n"); | |
a0d0e21e | 1596 | for (s++; isALNUM(*s); s++) ; |
79072805 LW |
1597 | #endif |
1598 | /*SUPPRESS 530*/ | |
1599 | return s; | |
4633a7c4 | 1600 | case 'h': |
3280af22 | 1601 | usage(PL_origargv[0]); |
6ad3d225 | 1602 | PerlProc_exit(0); |
79072805 | 1603 | case 'i': |
3280af22 NIS |
1604 | if (PL_inplace) |
1605 | Safefree(PL_inplace); | |
1606 | PL_inplace = savepv(s+1); | |
79072805 | 1607 | /*SUPPRESS 530*/ |
3280af22 | 1608 | for (s = PL_inplace; *s && !isSPACE(*s); s++) ; |
7b8d334a | 1609 | if (*s) { |
fb73857a | 1610 | *s++ = '\0'; |
7b8d334a GS |
1611 | if (*s == '-') /* Additional switches on #! line. */ |
1612 | s++; | |
1613 | } | |
fb73857a | 1614 | return s; |
1615 | case 'I': /* -I handled both here and in parse_perl() */ | |
bbce6d69 | 1616 | forbid_setid("-I"); |
fb73857a | 1617 | ++s; |
1618 | while (*s && isSPACE(*s)) | |
1619 | ++s; | |
1620 | if (*s) { | |
774d564b | 1621 | char *e, *p; |
748a9306 | 1622 | for (e = s; *e && !isSPACE(*e); e++) ; |
774d564b | 1623 | p = savepvn(s, e-s); |
1624 | incpush(p, TRUE); | |
1625 | Safefree(p); | |
fb73857a | 1626 | s = e; |
79072805 LW |
1627 | } |
1628 | else | |
463ee0b2 | 1629 | croak("No space allowed after -I"); |
fb73857a | 1630 | return s; |
79072805 | 1631 | case 'l': |
3280af22 | 1632 | PL_minus_l = TRUE; |
79072805 | 1633 | s++; |
3280af22 NIS |
1634 | if (PL_ors) |
1635 | Safefree(PL_ors); | |
79072805 | 1636 | if (isDIGIT(*s)) { |
3280af22 NIS |
1637 | PL_ors = savepv("\n"); |
1638 | PL_orslen = 1; | |
1639 | *PL_ors = scan_oct(s, 3 + (*s == '0'), &numlen); | |
79072805 LW |
1640 | s += numlen; |
1641 | } | |
1642 | else { | |
a863c7d1 | 1643 | dTHR; |
3280af22 NIS |
1644 | if (RsPARA(PL_nrs)) { |
1645 | PL_ors = "\n\n"; | |
1646 | PL_orslen = 2; | |
c07a80fd | 1647 | } |
1648 | else | |
3280af22 NIS |
1649 | PL_ors = SvPV(PL_nrs, PL_orslen); |
1650 | PL_ors = savepvn(PL_ors, PL_orslen); | |
79072805 LW |
1651 | } |
1652 | return s; | |
1a30305b | 1653 | case 'M': |
bbce6d69 | 1654 | forbid_setid("-M"); /* XXX ? */ |
1a30305b | 1655 | /* FALL THROUGH */ |
1656 | case 'm': | |
bbce6d69 | 1657 | forbid_setid("-m"); /* XXX ? */ |
1a30305b | 1658 | if (*++s) { |
a5f75d66 | 1659 | char *start; |
11343788 | 1660 | SV *sv; |
a5f75d66 AD |
1661 | char *use = "use "; |
1662 | /* -M-foo == 'no foo' */ | |
1663 | if (*s == '-') { use = "no "; ++s; } | |
11343788 | 1664 | sv = newSVpv(use,0); |
a5f75d66 | 1665 | start = s; |
1a30305b | 1666 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd | 1667 | while(isALNUM(*s) || *s==':') ++s; |
1668 | if (*s != '=') { | |
11343788 | 1669 | sv_catpv(sv, start); |
c07a80fd | 1670 | if (*(start-1) == 'm') { |
1671 | if (*s != '\0') | |
1672 | croak("Can't use '%c' after -mname", *s); | |
11343788 | 1673 | sv_catpv( sv, " ()"); |
c07a80fd | 1674 | } |
1675 | } else { | |
11343788 MB |
1676 | sv_catpvn(sv, start, s-start); |
1677 | sv_catpv(sv, " split(/,/,q{"); | |
1678 | sv_catpv(sv, ++s); | |
1679 | sv_catpv(sv, "})"); | |
c07a80fd | 1680 | } |
1a30305b | 1681 | s += strlen(s); |
3280af22 NIS |
1682 | if (PL_preambleav == NULL) |
1683 | PL_preambleav = newAV(); | |
1684 | av_push(PL_preambleav, sv); | |
1a30305b | 1685 | } |
1686 | else | |
1687 | croak("No space allowed after -%c", *(s-1)); | |
1688 | return s; | |
79072805 | 1689 | case 'n': |
3280af22 | 1690 | PL_minus_n = TRUE; |
79072805 LW |
1691 | s++; |
1692 | return s; | |
1693 | case 'p': | |
3280af22 | 1694 | PL_minus_p = TRUE; |
79072805 LW |
1695 | s++; |
1696 | return s; | |
1697 | case 's': | |
bbce6d69 | 1698 | forbid_setid("-s"); |
3280af22 | 1699 | PL_doswitches = TRUE; |
79072805 LW |
1700 | s++; |
1701 | return s; | |
463ee0b2 | 1702 | case 'T': |
3280af22 | 1703 | if (!PL_tainting) |
9607fc9c | 1704 | croak("Too late for \"-T\" option"); |
463ee0b2 LW |
1705 | s++; |
1706 | return s; | |
79072805 | 1707 | case 'u': |
3280af22 | 1708 | PL_do_undump = TRUE; |
79072805 LW |
1709 | s++; |
1710 | return s; | |
1711 | case 'U': | |
3280af22 | 1712 | PL_unsafe = TRUE; |
79072805 LW |
1713 | s++; |
1714 | return s; | |
1715 | case 'v': | |
a5f75d66 | 1716 | #if defined(SUBVERSION) && SUBVERSION > 0 |
fb73857a | 1717 | printf("\nThis is perl, version 5.%03d_%02d built for %s", |
1718 | PATCHLEVEL, SUBVERSION, ARCHNAME); | |
a5f75d66 | 1719 | #else |
fb73857a | 1720 | printf("\nThis is perl, version %s built for %s", |
6b88bc9c | 1721 | PL_patchlevel, ARCHNAME); |
fb73857a | 1722 | #endif |
1723 | #if defined(LOCAL_PATCH_COUNT) | |
1724 | if (LOCAL_PATCH_COUNT > 0) | |
1725 | printf("\n(with %d registered patch%s, see perl -V for more detail)", | |
1726 | LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : ""); | |
a5f75d66 | 1727 | #endif |
1a30305b | 1728 | |
a411490c | 1729 | printf("\n\nCopyright 1987-1998, Larry Wall\n"); |
79072805 | 1730 | #ifdef MSDOS |
fb73857a | 1731 | printf("\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); |
55497cff | 1732 | #endif |
1733 | #ifdef DJGPP | |
1734 | printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n"); | |
9731c6ca | 1735 | printf("djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1998\n"); |
4633a7c4 | 1736 | #endif |
79072805 | 1737 | #ifdef OS2 |
5dd60ef7 | 1738 | printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" |
a411490c | 1739 | "Version 5 port Copyright (c) 1994-1998, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 | 1740 | #endif |
79072805 | 1741 | #ifdef atarist |
760ac839 | 1742 | printf("atariST series port, ++jrb bammi@cadence.com\n"); |
79072805 | 1743 | #endif |
a3f9223b GS |
1744 | #ifdef __BEOS__ |
1745 | printf("BeOS port Copyright Tom Spindler, 1997-1998\n"); | |
1746 | #endif | |
1d84e8df JH |
1747 | #ifdef MPE |
1748 | printf("MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-1998\n"); | |
1749 | #endif | |
9d116dd7 JH |
1750 | #ifdef OEMVS |
1751 | printf("MVS (OS390) port by Mortice Kern Systems, 1997-1998\n"); | |
1752 | #endif | |
495c5fdc PG |
1753 | #ifdef __VOS__ |
1754 | printf("Stratus VOS port by Paul_Green@stratus.com, 1997-1998\n"); | |
1755 | #endif | |
092bebab JH |
1756 | #ifdef __OPEN_VM |
1757 | printf("VM/ESA port by Neale Ferguson, 1998\n"); | |
1758 | #endif | |
a1a0e61e TD |
1759 | #ifdef POSIX_BC |
1760 | printf("BS2000 (POSIX) port by Start Amadeus GmbH, 1998\n"); | |
1761 | #endif | |
61ae2fbf JH |
1762 | #ifdef __MINT__ |
1763 | printf("MiNT port by Guido Flohr, 1997\n"); | |
1764 | #endif | |
baed7233 DL |
1765 | #ifdef BINARY_BUILD_NOTICE |
1766 | BINARY_BUILD_NOTICE; | |
1767 | #endif | |
760ac839 | 1768 | printf("\n\ |
79072805 | 1769 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
95103687 GS |
1770 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\ |
1771 | Complete documentation for Perl, including FAQ lists, should be found on\n\ | |
1772 | this system using `man perl' or `perldoc perl'. If you have access to the\n\ | |
1773 | Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n"); | |
6ad3d225 | 1774 | PerlProc_exit(0); |
79072805 | 1775 | case 'w': |
599cee73 PM |
1776 | if (! (PL_dowarn & G_WARN_ALL_MASK)) |
1777 | PL_dowarn |= G_WARN_ON; | |
1778 | s++; | |
1779 | return s; | |
1780 | case 'W': | |
1781 | PL_dowarn = G_WARN_ALL_ON|G_WARN_ON; | |
e24b16f9 | 1782 | PL_compiling.cop_warnings = WARN_ALL ; |
599cee73 PM |
1783 | s++; |
1784 | return s; | |
1785 | case 'X': | |
1786 | PL_dowarn = G_WARN_ALL_OFF; | |
e24b16f9 | 1787 | PL_compiling.cop_warnings = WARN_NONE ; |
79072805 LW |
1788 | s++; |
1789 | return s; | |
a0d0e21e | 1790 | case '*': |
79072805 LW |
1791 | case ' ': |
1792 | if (s[1] == '-') /* Additional switches on #! line. */ | |
1793 | return s+2; | |
1794 | break; | |
a0d0e21e | 1795 | case '-': |
79072805 | 1796 | case 0: |
51882d45 | 1797 | #if defined(WIN32) || !defined(PERL_STRICT_CR) |
a868473f NIS |
1798 | case '\r': |
1799 | #endif | |
79072805 LW |
1800 | case '\n': |
1801 | case '\t': | |
1802 | break; | |
aa689395 | 1803 | #ifdef ALTERNATE_SHEBANG |
1804 | case 'S': /* OS/2 needs -S on "extproc" line. */ | |
1805 | break; | |
1806 | #endif | |
a0d0e21e | 1807 | case 'P': |
3280af22 | 1808 | if (PL_preprocess) |
a0d0e21e LW |
1809 | return s+1; |
1810 | /* FALL THROUGH */ | |
79072805 | 1811 | default: |
a0d0e21e | 1812 | croak("Can't emulate -%.1s on #! line",s); |
79072805 LW |
1813 | } |
1814 | return Nullch; | |
1815 | } | |
1816 | ||
1817 | /* compliments of Tom Christiansen */ | |
1818 | ||
1819 | /* unexec() can be found in the Gnu emacs distribution */ | |
ee580363 | 1820 | /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */ |
79072805 LW |
1821 | |
1822 | void | |
8ac85365 | 1823 | my_unexec(void) |
79072805 LW |
1824 | { |
1825 | #ifdef UNEXEC | |
46fc3d4c | 1826 | SV* prog; |
1827 | SV* file; | |
ee580363 | 1828 | int status = 1; |
79072805 LW |
1829 | extern int etext; |
1830 | ||
ee580363 | 1831 | prog = newSVpv(BIN_EXP, 0); |
46fc3d4c | 1832 | sv_catpv(prog, "/perl"); |
6b88bc9c | 1833 | file = newSVpv(PL_origfilename, 0); |
46fc3d4c | 1834 | sv_catpv(file, ".perldump"); |
79072805 | 1835 | |
ee580363 GS |
1836 | unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0); |
1837 | /* unexec prints msg to stderr in case of failure */ | |
6ad3d225 | 1838 | PerlProc_exit(status); |
79072805 | 1839 | #else |
a5f75d66 AD |
1840 | # ifdef VMS |
1841 | # include <lib$routines.h> | |
1842 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ | |
aa689395 | 1843 | # else |
79072805 | 1844 | ABORT(); /* for use with undump */ |
aa689395 | 1845 | # endif |
a5f75d66 | 1846 | #endif |
79072805 LW |
1847 | } |
1848 | ||
cb68f92d GS |
1849 | /* initialize curinterp */ |
1850 | STATIC void | |
1851 | init_interp(void) | |
1852 | { | |
1853 | ||
066ef5b5 | 1854 | #ifdef PERL_OBJECT /* XXX kludge */ |
cb68f92d | 1855 | #define I_REINIT \ |
6b88bc9c GS |
1856 | STMT_START { \ |
1857 | PL_chopset = " \n-"; \ | |
1858 | PL_copline = NOLINE; \ | |
1859 | PL_curcop = &PL_compiling;\ | |
1860 | PL_curcopdb = NULL; \ | |
1861 | PL_dbargs = 0; \ | |
1862 | PL_dlmax = 128; \ | |
3967c732 | 1863 | PL_dumpindent = 4; \ |
6b88bc9c GS |
1864 | PL_laststatval = -1; \ |
1865 | PL_laststype = OP_STAT; \ | |
1866 | PL_maxscream = -1; \ | |
1867 | PL_maxsysfd = MAXSYSFD; \ | |
1868 | PL_statname = Nullsv; \ | |
1869 | PL_tmps_floor = -1; \ | |
1870 | PL_tmps_ix = -1; \ | |
1871 | PL_op_mask = NULL; \ | |
1872 | PL_dlmax = 128; \ | |
1873 | PL_laststatval = -1; \ | |
1874 | PL_laststype = OP_STAT; \ | |
1875 | PL_mess_sv = Nullsv; \ | |
1876 | PL_splitstr = " "; \ | |
1877 | PL_generation = 100; \ | |
1878 | PL_exitlist = NULL; \ | |
1879 | PL_exitlistlen = 0; \ | |
1880 | PL_regindent = 0; \ | |
1881 | PL_in_clean_objs = FALSE; \ | |
1882 | PL_in_clean_all = FALSE; \ | |
1883 | PL_profiledata = NULL; \ | |
1884 | PL_rsfp = Nullfp; \ | |
1885 | PL_rsfp_filters = Nullav; \ | |
24d3c518 | 1886 | PL_dirty = FALSE; \ |
cb68f92d | 1887 | } STMT_END |
9666903d | 1888 | I_REINIT; |
066ef5b5 GS |
1889 | #else |
1890 | # ifdef MULTIPLICITY | |
1891 | # define PERLVAR(var,type) | |
8f872242 NIS |
1892 | # define PERLVARI(var,type,init) PL_curinterp->var = init; |
1893 | # define PERLVARIC(var,type,init) PL_curinterp->var = init; | |
066ef5b5 GS |
1894 | # include "intrpvar.h" |
1895 | # ifndef USE_THREADS | |
1896 | # include "thrdvar.h" | |
1897 | # endif | |
1898 | # undef PERLVAR | |
1899 | # undef PERLVARI | |
1900 | # undef PERLVARIC | |
3967c732 | 1901 | # else |
066ef5b5 | 1902 | # define PERLVAR(var,type) |
533c011a NIS |
1903 | # define PERLVARI(var,type,init) PL_##var = init; |
1904 | # define PERLVARIC(var,type,init) PL_##var = init; | |
066ef5b5 GS |
1905 | # include "intrpvar.h" |
1906 | # ifndef USE_THREADS | |
1907 | # include "thrdvar.h" | |
1908 | # endif | |
1909 | # undef PERLVAR | |
1910 | # undef PERLVARI | |
1911 | # undef PERLVARIC | |
1912 | # endif | |
cb68f92d GS |
1913 | #endif |
1914 | ||
cb68f92d GS |
1915 | } |
1916 | ||
76e3520e | 1917 | STATIC void |
8ac85365 | 1918 | init_main_stash(void) |
79072805 | 1919 | { |
11343788 | 1920 | dTHR; |
463ee0b2 | 1921 | GV *gv; |
6e72f9df | 1922 | |
1923 | /* Note that strtab is a rather special HV. Assumptions are made | |
1924 | about not iterating on it, and not adding tie magic to it. | |
1925 | It is properly deallocated in perl_destruct() */ | |
3280af22 | 1926 | PL_strtab = newHV(); |
5f08fbcd GS |
1927 | #ifdef USE_THREADS |
1928 | MUTEX_INIT(&PL_strtab_mutex); | |
1929 | #endif | |
3280af22 NIS |
1930 | HvSHAREKEYS_off(PL_strtab); /* mandatory */ |
1931 | hv_ksplit(PL_strtab, 512); | |
6e72f9df | 1932 | |
3280af22 NIS |
1933 | PL_curstash = PL_defstash = newHV(); |
1934 | PL_curstname = newSVpv("main",4); | |
adbc6bb1 LW |
1935 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
1936 | SvREFCNT_dec(GvHV(gv)); | |
3280af22 | 1937 | GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash); |
463ee0b2 | 1938 | SvREADONLY_on(gv); |
3280af22 NIS |
1939 | HvNAME(PL_defstash) = savepv("main"); |
1940 | PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); | |
1941 | GvMULTI_on(PL_incgv); | |
1942 | PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */ | |
1943 | GvMULTI_on(PL_hintgv); | |
1944 | PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV); | |
1945 | PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); | |
1946 | GvMULTI_on(PL_errgv); | |
1947 | PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */ | |
1948 | GvMULTI_on(PL_replgv); | |
84902520 | 1949 | (void)form("%240s",""); /* Preallocate temp - for immediate signals. */ |
38a03e6e MB |
1950 | sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */ |
1951 | sv_setpvn(ERRSV, "", 0); | |
3280af22 NIS |
1952 | PL_curstash = PL_defstash; |
1953 | PL_compiling.cop_stash = PL_defstash; | |
1954 | PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); | |
1955 | PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV)); | |
4633a7c4 | 1956 | /* We must init $/ before switches are processed. */ |
9d14cc18 | 1957 | sv_setpvn(perl_get_sv("/", TRUE), "\n", 1); |
79072805 LW |
1958 | } |
1959 | ||
76e3520e | 1960 | STATIC void |
01f988be | 1961 | open_script(char *scriptname, bool dosearch, SV *sv, int *fdscript) |
79072805 | 1962 | { |
0f15f207 | 1963 | dTHR; |
79072805 | 1964 | register char *s; |
2a92aaa0 | 1965 | |
6c4ab083 | 1966 | *fdscript = -1; |
79072805 | 1967 | |
3280af22 NIS |
1968 | if (PL_e_script) { |
1969 | PL_origfilename = savepv("-e"); | |
96436eeb | 1970 | } |
6c4ab083 GS |
1971 | else { |
1972 | /* if find_script() returns, it returns a malloc()-ed value */ | |
3280af22 | 1973 | PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1); |
6c4ab083 GS |
1974 | |
1975 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { | |
1976 | char *s = scriptname + 8; | |
1977 | *fdscript = atoi(s); | |
1978 | while (isDIGIT(*s)) | |
1979 | s++; | |
1980 | if (*s) { | |
1981 | scriptname = savepv(s + 1); | |
3280af22 NIS |
1982 | Safefree(PL_origfilename); |
1983 | PL_origfilename = scriptname; | |
6c4ab083 GS |
1984 | } |
1985 | } | |
1986 | } | |
1987 | ||
3280af22 NIS |
1988 | PL_curcop->cop_filegv = gv_fetchfile(PL_origfilename); |
1989 | if (strEQ(PL_origfilename,"-")) | |
79072805 | 1990 | scriptname = ""; |
01f988be | 1991 | if (*fdscript >= 0) { |
3280af22 | 1992 | PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE); |
96436eeb | 1993 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
3280af22 NIS |
1994 | if (PL_rsfp) |
1995 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */ | |
96436eeb | 1996 | #endif |
1997 | } | |
3280af22 | 1998 | else if (PL_preprocess) { |
46fc3d4c | 1999 | char *cpp_cfg = CPPSTDIN; |
63bfd3db | 2000 | SV *cpp = newSVpv("",0); |
46fc3d4c | 2001 | SV *cmd = NEWSV(0,0); |
2002 | ||
2003 | if (strEQ(cpp_cfg, "cppstdin")) | |
2004 | sv_catpvf(cpp, "%s/", BIN_EXP); | |
2005 | sv_catpv(cpp, cpp_cfg); | |
79072805 | 2006 | |
79072805 | 2007 | sv_catpv(sv,"-I"); |
fed7345c | 2008 | sv_catpv(sv,PRIVLIB_EXP); |
46fc3d4c | 2009 | |
79072805 | 2010 | #ifdef MSDOS |
46fc3d4c | 2011 | sv_setpvf(cmd, "\ |
79072805 LW |
2012 | sed %s -e \"/^[^#]/b\" \ |
2013 | -e \"/^#[ ]*include[ ]/b\" \ | |
2014 | -e \"/^#[ ]*define[ ]/b\" \ | |
2015 | -e \"/^#[ ]*if[ ]/b\" \ | |
2016 | -e \"/^#[ ]*ifdef[ ]/b\" \ | |
2017 | -e \"/^#[ ]*ifndef[ ]/b\" \ | |
2018 | -e \"/^#[ ]*else/b\" \ | |
2019 | -e \"/^#[ ]*elif[ ]/b\" \ | |
2020 | -e \"/^#[ ]*undef[ ]/b\" \ | |
2021 | -e \"/^#[ ]*endif/b\" \ | |
2022 | -e \"s/^#.*//\" \ | |
fc36a67e | 2023 | %s | %_ -C %_ %s", |
6b88bc9c | 2024 | (PL_doextract ? "-e \"1,/^#/d\n\"" : ""), |
79072805 | 2025 | #else |
092bebab JH |
2026 | # ifdef __OPEN_VM |
2027 | sv_setpvf(cmd, "\ | |
2028 | %s %s -e '/^[^#]/b' \ | |
2029 | -e '/^#[ ]*include[ ]/b' \ | |
2030 | -e '/^#[ ]*define[ ]/b' \ | |
2031 | -e '/^#[ ]*if[ ]/b' \ | |
2032 | -e '/^#[ ]*ifdef[ ]/b' \ | |
2033 | -e '/^#[ ]*ifndef[ ]/b' \ | |
2034 | -e '/^#[ ]*else/b' \ | |
2035 | -e '/^#[ ]*elif[ ]/b' \ | |
2036 | -e '/^#[ ]*undef[ ]/b' \ | |
2037 | -e '/^#[ ]*endif/b' \ | |
2038 | -e 's/^[ ]*#.*//' \ | |
2039 | %s | %_ %_ %s", | |
2040 | # else | |
46fc3d4c | 2041 | sv_setpvf(cmd, "\ |
79072805 LW |
2042 | %s %s -e '/^[^#]/b' \ |
2043 | -e '/^#[ ]*include[ ]/b' \ | |
2044 | -e '/^#[ ]*define[ ]/b' \ | |
2045 | -e '/^#[ ]*if[ ]/b' \ | |
2046 | -e '/^#[ ]*ifdef[ ]/b' \ | |
2047 | -e '/^#[ ]*ifndef[ ]/b' \ | |
2048 | -e '/^#[ ]*else/b' \ | |
2049 | -e '/^#[ ]*elif[ ]/b' \ | |
2050 | -e '/^#[ ]*undef[ ]/b' \ | |
2051 | -e '/^#[ ]*endif/b' \ | |
2052 | -e 's/^[ ]*#.*//' \ | |
fc36a67e | 2053 | %s | %_ -C %_ %s", |
092bebab | 2054 | # endif |
79072805 LW |
2055 | #ifdef LOC_SED |
2056 | LOC_SED, | |
2057 | #else | |
2058 | "sed", | |
2059 | #endif | |
3280af22 | 2060 | (PL_doextract ? "-e '1,/^#/d\n'" : ""), |
79072805 | 2061 | #endif |
46fc3d4c | 2062 | scriptname, cpp, sv, CPPMINUS); |
3280af22 | 2063 | PL_doextract = FALSE; |
79072805 | 2064 | #ifdef IAMSUID /* actually, this is caught earlier */ |
b28d0864 | 2065 | if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */ |
79072805 | 2066 | #ifdef HAS_SETEUID |
b28d0864 | 2067 | (void)seteuid(PL_uid); /* musn't stay setuid root */ |
79072805 LW |
2068 | #else |
2069 | #ifdef HAS_SETREUID | |
b28d0864 | 2070 | (void)setreuid((Uid_t)-1, PL_uid); |
85e6fe83 LW |
2071 | #else |
2072 | #ifdef HAS_SETRESUID | |
b28d0864 | 2073 | (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1); |
79072805 | 2074 | #else |
b28d0864 | 2075 | PerlProc_setuid(PL_uid); |
79072805 LW |
2076 | #endif |
2077 | #endif | |
85e6fe83 | 2078 | #endif |
b28d0864 | 2079 | if (PerlProc_geteuid() != PL_uid) |
463ee0b2 | 2080 | croak("Can't do seteuid!\n"); |
79072805 LW |
2081 | } |
2082 | #endif /* IAMSUID */ | |
3280af22 | 2083 | PL_rsfp = PerlProc_popen(SvPVX(cmd), "r"); |
46fc3d4c | 2084 | SvREFCNT_dec(cmd); |
2085 | SvREFCNT_dec(cpp); | |
79072805 LW |
2086 | } |
2087 | else if (!*scriptname) { | |
bbce6d69 | 2088 | forbid_setid("program input from stdin"); |
3280af22 | 2089 | PL_rsfp = PerlIO_stdin(); |
79072805 | 2090 | } |
96436eeb | 2091 | else { |
3280af22 | 2092 | PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE); |
96436eeb | 2093 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
3280af22 NIS |
2094 | if (PL_rsfp) |
2095 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */ | |
96436eeb | 2096 | #endif |
2097 | } | |
3280af22 | 2098 | if (!PL_rsfp) { |
13281fa4 | 2099 | #ifdef DOSUID |
a687059c | 2100 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
6b88bc9c GS |
2101 | if (PL_euid && |
2102 | PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&PL_statbuf) >= 0 && | |
2103 | PL_statbuf.st_mode & (S_ISUID|S_ISGID)) | |
2104 | { | |
46fc3d4c | 2105 | /* try again */ |
6b88bc9c | 2106 | PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv); |
463ee0b2 | 2107 | croak("Can't do setuid\n"); |
13281fa4 LW |
2108 | } |
2109 | #endif | |
2110 | #endif | |
463ee0b2 | 2111 | croak("Can't open perl script \"%s\": %s\n", |
3280af22 | 2112 | SvPVX(GvSV(PL_curcop->cop_filegv)), Strerror(errno)); |
13281fa4 | 2113 | } |
79072805 | 2114 | } |
8d063cd8 | 2115 | |
104d25b7 JH |
2116 | #ifdef IAMSUID |
2117 | static int | |
2118 | fd_on_nosuid_fs(int fd) | |
2119 | { | |
2120 | int on_nosuid = 0; | |
2121 | int check_okay = 0; | |
2122 | /* | |
2123 | * Preferred order: fstatvfs(), fstatfs(), getmntent(). | |
2124 | * fstatvfs() is UNIX98. | |
2125 | * fstatfs() is BSD. | |
2126 | * getmntent() is O(number-of-mounted-filesystems) and can hang. | |
2127 | */ | |
2128 | ||
2129 | # ifdef HAS_FSTATVFS | |
2130 | struct statvfs stfs; | |
2131 | check_okay = fstatvfs(fd, &stfs) == 0; | |
2132 | on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID); | |
2133 | # else | |
2134 | # if defined(HAS_FSTATFS) && defined(HAS_STRUCT_STATFS_FLAGS) | |
2135 | struct statfs stfs; | |
2136 | check_okay = fstatfs(fd, &stfs) == 0; | |
2137 | # undef PERL_MOUNT_NOSUID | |
2138 | # if !defined(PERL_MOUNT_NOSUID) && defined(MNT_NOSUID) | |
2139 | # define PERL_MOUNT_NOSUID MNT_NOSUID | |
2140 | # endif | |
2141 | # if !defined(PERL_MOUNT_NOSUID) && defined(MS_NOSUID) | |
2142 | # define PERL_MOUNT_NOSUID MS_NOSUID | |
2143 | # endif | |
2144 | # if !defined(PERL_MOUNT_NOSUID) && defined(M_NOSUID) | |
2145 | # define PERL_MOUNT_NOSUID M_NOSUID | |
2146 | # endif | |
2147 | # ifdef PERL_MOUNT_NOSUID | |
2148 | on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID); | |
2149 | # endif | |
2150 | # else | |
32b3cf08 | 2151 | # if defined(HAS_GETMNTENT) && defined(HAS_HASMNTOPT) && defined(MNTOPT_NOSUID) |
104d25b7 JH |
2152 | FILE *mtab = fopen("/etc/mtab", "r"); |
2153 | struct mntent *entry; | |
2154 | struct stat stb, fsb; | |
2155 | ||
2156 | if (mtab && (fstat(fd, &stb) == 0)) { | |
2157 | while (entry = getmntent(mtab)) { | |
2158 | if (stat(entry->mnt_dir, &fsb) == 0 | |
2159 | && fsb.st_dev == stb.st_dev) | |
2160 | { | |
2161 | /* found the filesystem */ | |
2162 | check_okay = 1; | |
2163 | if (hasmntopt(entry, MNTOPT_NOSUID)) | |
2164 | on_nosuid = 1; | |
2165 | break; | |
2166 | } /* A single fs may well fail its stat(). */ | |
2167 | } | |
2168 | } | |
2169 | if (mtab) | |
2170 | fclose(mtab); | |
2171 | # endif /* mntent */ | |
2172 | # endif /* statfs */ | |
2173 | # endif /* statvfs */ | |
2174 | if (!check_okay) | |
2175 | croak("Can't check filesystem of script \"%s\"", PL_origfilename); | |
2176 | return on_nosuid; | |
2177 | } | |
2178 | #endif /* IAMSUID */ | |
2179 | ||
76e3520e | 2180 | STATIC void |
01f988be | 2181 | validate_suid(char *validarg, char *scriptname, int fdscript) |
79072805 | 2182 | { |
96436eeb | 2183 | int which; |
2184 | ||
13281fa4 LW |
2185 | /* do we need to emulate setuid on scripts? */ |
2186 | ||
2187 | /* This code is for those BSD systems that have setuid #! scripts disabled | |
2188 | * in the kernel because of a security problem. Merely defining DOSUID | |
2189 | * in perl will not fix that problem, but if you have disabled setuid | |
2190 | * scripts in the kernel, this will attempt to emulate setuid and setgid | |
2191 | * on scripts that have those now-otherwise-useless bits set. The setuid | |
27e2fb84 LW |
2192 | * root version must be called suidperl or sperlN.NNN. If regular perl |
2193 | * discovers that it has opened a setuid script, it calls suidperl with | |
2194 | * the same argv that it had. If suidperl finds that the script it has | |
2195 | * just opened is NOT setuid root, it sets the effective uid back to the | |
2196 | * uid. We don't just make perl setuid root because that loses the | |
2197 | * effective uid we had before invoking perl, if it was different from the | |
2198 | * uid. | |
13281fa4 LW |
2199 | * |
2200 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must | |
2201 | * be defined in suidperl only. suidperl must be setuid root. The | |
2202 | * Configure script will set this up for you if you want it. | |
2203 | */ | |
a687059c | 2204 | |
13281fa4 | 2205 | #ifdef DOSUID |
ea0efc06 | 2206 | dTHR; |
6e72f9df | 2207 | char *s, *s2; |
a0d0e21e | 2208 | |
b28d0864 | 2209 | if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */ |
6b88bc9c | 2210 | croak("Can't stat script \"%s\"",PL_origfilename); |
b28d0864 | 2211 | if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 | 2212 | I32 len; |
2d8e6c8d | 2213 | STRLEN n_a; |
13281fa4 | 2214 | |
a687059c | 2215 | #ifdef IAMSUID |
fe14fcc3 | 2216 | #ifndef HAS_SETREUID |
a687059c LW |
2217 | /* On this access check to make sure the directories are readable, |
2218 | * there is actually a small window that the user could use to make | |
2219 | * filename point to an accessible directory. So there is a faint | |
2220 | * chance that someone could execute a setuid script down in a | |
2221 | * non-accessible directory. I don't know what to do about that. | |
2222 | * But I don't think it's too important. The manual lies when | |
2223 | * it says access() is useful in setuid programs. | |
2224 | */ | |
6b88bc9c | 2225 | if (PerlLIO_access(SvPVX(GvSV(PL_curcop->cop_filegv)),1)) /*double check*/ |
463ee0b2 | 2226 | croak("Permission denied"); |
a687059c LW |
2227 | #else |
2228 | /* If we can swap euid and uid, then we can determine access rights | |
2229 | * with a simple stat of the file, and then compare device and | |
2230 | * inode to make sure we did stat() on the same file we opened. | |
2231 | * Then we just have to make sure he or she can execute it. | |
2232 | */ | |
2233 | { | |
2234 | struct stat tmpstatbuf; | |
2235 | ||
85e6fe83 LW |
2236 | if ( |
2237 | #ifdef HAS_SETREUID | |
b28d0864 | 2238 | setreuid(PL_euid,PL_uid) < 0 |
a0d0e21e LW |
2239 | #else |
2240 | # if HAS_SETRESUID | |
b28d0864 | 2241 | setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0 |
a0d0e21e | 2242 | # endif |
85e6fe83 | 2243 | #endif |
b28d0864 | 2244 | || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid) |
463ee0b2 | 2245 | croak("Can't swap uid and euid"); /* really paranoid */ |
6b88bc9c | 2246 | if (PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&tmpstatbuf) < 0) |
463ee0b2 | 2247 | croak("Permission denied"); /* testing full pathname here */ |
2bb3463c | 2248 | #if defined(IAMSUID) && !defined(NO_NOSUID_CHECK) |
104d25b7 JH |
2249 | if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp))) |
2250 | croak("Permission denied"); | |
2251 | #endif | |
b28d0864 NIS |
2252 | if (tmpstatbuf.st_dev != PL_statbuf.st_dev || |
2253 | tmpstatbuf.st_ino != PL_statbuf.st_ino) { | |
2254 | (void)PerlIO_close(PL_rsfp); | |
2255 | if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */ | |
2256 | PerlIO_printf(PL_rsfp, | |
ff0cee69 | 2257 | "User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\ |
2258 | (Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n", | |
b28d0864 NIS |
2259 | (long)PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino, |
2260 | (long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino, | |
6b88bc9c | 2261 | SvPVX(GvSV(PL_curcop->cop_filegv)), |
b28d0864 NIS |
2262 | (long)PL_statbuf.st_uid, (long)PL_statbuf.st_gid); |
2263 | (void)PerlProc_pclose(PL_rsfp); | |
a687059c | 2264 | } |
463ee0b2 | 2265 | croak("Permission denied\n"); |
a687059c | 2266 | } |
85e6fe83 LW |
2267 | if ( |
2268 | #ifdef HAS_SETREUID | |
b28d0864 | 2269 | setreuid(PL_uid,PL_euid) < 0 |
a0d0e21e LW |
2270 | #else |
2271 | # if defined(HAS_SETRESUID) | |
b28d0864 | 2272 | setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0 |
a0d0e21e | 2273 | # endif |
85e6fe83 | 2274 | #endif |
b28d0864 | 2275 | || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid) |
463ee0b2 | 2276 | croak("Can't reswap uid and euid"); |
b28d0864 | 2277 | if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */ |
463ee0b2 | 2278 | croak("Permission denied\n"); |
a687059c | 2279 | } |
fe14fcc3 | 2280 | #endif /* HAS_SETREUID */ |
a687059c LW |
2281 | #endif /* IAMSUID */ |
2282 | ||
b28d0864 | 2283 | if (!S_ISREG(PL_statbuf.st_mode)) |
463ee0b2 | 2284 | croak("Permission denied"); |
b28d0864 | 2285 | if (PL_statbuf.st_mode & S_IWOTH) |
463ee0b2 | 2286 | croak("Setuid/gid script is writable by world"); |
6b88bc9c GS |
2287 | PL_doswitches = FALSE; /* -s is insecure in suid */ |
2288 | PL_curcop->cop_line++; | |
2289 | if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch || | |
2d8e6c8d | 2290 | strnNE(SvPV(PL_linestr,n_a),"#!",2) ) /* required even on Sys V */ |
463ee0b2 | 2291 | croak("No #! line"); |
2d8e6c8d | 2292 | s = SvPV(PL_linestr,n_a)+2; |
663a0e37 | 2293 | if (*s == ' ') s++; |
45d8adaa | 2294 | while (!isSPACE(*s)) s++; |
2d8e6c8d | 2295 | for (s2 = s; (s2 > SvPV(PL_linestr,n_a)+2 && |
6e72f9df | 2296 | (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ; |
2297 | if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ | |
463ee0b2 | 2298 | croak("Not a perl script"); |
a687059c | 2299 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 LW |
2300 | /* |
2301 | * #! arg must be what we saw above. They can invoke it by | |
2302 | * mentioning suidperl explicitly, but they may not add any strange | |
2303 | * arguments beyond what #! says if they do invoke suidperl that way. | |
2304 | */ | |
2305 | len = strlen(validarg); | |
2306 | if (strEQ(validarg," PHOOEY ") || | |
45d8adaa | 2307 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
463ee0b2 | 2308 | croak("Args must match #! line"); |
a687059c LW |
2309 | |
2310 | #ifndef IAMSUID | |
b28d0864 NIS |
2311 | if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) && |
2312 | PL_euid == PL_statbuf.st_uid) | |
2313 | if (!PL_do_undump) | |
463ee0b2 | 2314 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
2315 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
2316 | #endif /* IAMSUID */ | |
13281fa4 | 2317 | |
b28d0864 NIS |
2318 | if (PL_euid) { /* oops, we're not the setuid root perl */ |
2319 | (void)PerlIO_close(PL_rsfp); | |
13281fa4 | 2320 | #ifndef IAMSUID |
46fc3d4c | 2321 | /* try again */ |
6b88bc9c | 2322 | PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv); |
13281fa4 | 2323 | #endif |
463ee0b2 | 2324 | croak("Can't do setuid\n"); |
13281fa4 LW |
2325 | } |
2326 | ||
b28d0864 | 2327 | if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) { |
fe14fcc3 | 2328 | #ifdef HAS_SETEGID |
b28d0864 | 2329 | (void)setegid(PL_statbuf.st_gid); |
a687059c | 2330 | #else |
fe14fcc3 | 2331 | #ifdef HAS_SETREGID |
b28d0864 | 2332 | (void)setregid((Gid_t)-1,PL_statbuf.st_gid); |
85e6fe83 LW |
2333 | #else |
2334 | #ifdef HAS_SETRESGID | |
b28d0864 | 2335 | (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1); |
a687059c | 2336 | #else |
b28d0864 | 2337 | PerlProc_setgid(PL_statbuf.st_gid); |
a687059c LW |
2338 | #endif |
2339 | #endif | |
85e6fe83 | 2340 | #endif |
b28d0864 | 2341 | if (PerlProc_getegid() != PL_statbuf.st_gid) |
463ee0b2 | 2342 | croak("Can't do setegid!\n"); |
83025b21 | 2343 | } |
b28d0864 NIS |
2344 | if (PL_statbuf.st_mode & S_ISUID) { |
2345 | if (PL_statbuf.st_uid != PL_euid) | |
fe14fcc3 | 2346 | #ifdef HAS_SETEUID |
b28d0864 | 2347 | (void)seteuid(PL_statbuf.st_uid); /* all that for this */ |
a687059c | 2348 | #else |
fe14fcc3 | 2349 | #ifdef HAS_SETREUID |
b28d0864 | 2350 | (void)setreuid((Uid_t)-1,PL_statbuf.st_uid); |
85e6fe83 LW |
2351 | #else |
2352 | #ifdef HAS_SETRESUID | |
b28d0864 | 2353 | (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1); |
a687059c | 2354 | #else |
b28d0864 | 2355 | PerlProc_setuid(PL_statbuf.st_uid); |
a687059c LW |
2356 | #endif |
2357 | #endif | |
85e6fe83 | 2358 | #endif |
b28d0864 | 2359 | if (PerlProc_geteuid() != PL_statbuf.st_uid) |
463ee0b2 | 2360 | croak("Can't do seteuid!\n"); |
a687059c | 2361 | } |
b28d0864 | 2362 | else if (PL_uid) { /* oops, mustn't run as root */ |
fe14fcc3 | 2363 | #ifdef HAS_SETEUID |
b28d0864 | 2364 | (void)seteuid((Uid_t)PL_uid); |
a687059c | 2365 | #else |
fe14fcc3 | 2366 | #ifdef HAS_SETREUID |
b28d0864 | 2367 | (void)setreuid((Uid_t)-1,(Uid_t)PL_uid); |
a687059c | 2368 | #else |
85e6fe83 | 2369 | #ifdef HAS_SETRESUID |
b28d0864 | 2370 | (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1); |
85e6fe83 | 2371 | #else |
b28d0864 | 2372 | PerlProc_setuid((Uid_t)PL_uid); |
85e6fe83 | 2373 | #endif |
a687059c LW |
2374 | #endif |
2375 | #endif | |
b28d0864 | 2376 | if (PerlProc_geteuid() != PL_uid) |
463ee0b2 | 2377 | croak("Can't do seteuid!\n"); |
83025b21 | 2378 | } |
748a9306 | 2379 | init_ids(); |
b28d0864 | 2380 | if (!cando(S_IXUSR,TRUE,&PL_statbuf)) |
463ee0b2 | 2381 | croak("Permission denied\n"); /* they can't do this */ |
13281fa4 LW |
2382 | } |
2383 | #ifdef IAMSUID | |
6b88bc9c | 2384 | else if (PL_preprocess) |
463ee0b2 | 2385 | croak("-P not allowed for setuid/setgid script\n"); |
96436eeb | 2386 | else if (fdscript >= 0) |
2387 | croak("fd script not allowed in suidperl\n"); | |
13281fa4 | 2388 | else |
463ee0b2 | 2389 | croak("Script is not setuid/setgid in suidperl\n"); |
96436eeb | 2390 | |
2391 | /* We absolutely must clear out any saved ids here, so we */ | |
2392 | /* exec the real perl, substituting fd script for scriptname. */ | |
2393 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ | |
b28d0864 NIS |
2394 | PerlIO_rewind(PL_rsfp); |
2395 | PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
6b88bc9c GS |
2396 | for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; |
2397 | if (!PL_origargv[which]) | |
96436eeb | 2398 | croak("Permission denied"); |
6b88bc9c GS |
2399 | PL_origargv[which] = savepv(form("/dev/fd/%d/%s", |
2400 | PerlIO_fileno(PL_rsfp), PL_origargv[which])); | |
96436eeb | 2401 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
b28d0864 | 2402 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb | 2403 | #endif |
6b88bc9c | 2404 | PerlProc_execv(form("%s/perl%s", BIN_EXP, PL_patchlevel), PL_origargv);/* try again */ |
96436eeb | 2405 | croak("Can't do setuid\n"); |
13281fa4 | 2406 | #endif /* IAMSUID */ |
a687059c | 2407 | #else /* !DOSUID */ |
3280af22 | 2408 | if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */ |
a687059c | 2409 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW |
96827780 | 2410 | dTHR; |
b28d0864 NIS |
2411 | PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */ |
2412 | if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID) | |
a687059c | 2413 | || |
b28d0864 | 2414 | (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID) |
a687059c | 2415 | ) |
b28d0864 | 2416 | if (!PL_do_undump) |
463ee0b2 | 2417 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
2418 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
2419 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ | |
2420 | /* not set-id, must be wrapped */ | |
a687059c | 2421 | } |
13281fa4 | 2422 | #endif /* DOSUID */ |
79072805 | 2423 | } |
13281fa4 | 2424 | |
76e3520e | 2425 | STATIC void |
8ac85365 | 2426 | find_beginning(void) |
79072805 | 2427 | { |
6e72f9df | 2428 | register char *s, *s2; |
33b78306 LW |
2429 | |
2430 | /* skip forward in input to the real script? */ | |
2431 | ||
bbce6d69 | 2432 | forbid_setid("-x"); |
3280af22 NIS |
2433 | while (PL_doextract) { |
2434 | if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch) | |
463ee0b2 | 2435 | croak("No Perl script found in input\n"); |
6e72f9df | 2436 | if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) { |
3280af22 NIS |
2437 | PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */ |
2438 | PL_doextract = FALSE; | |
6e72f9df | 2439 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
2440 | s2 = s; | |
2441 | while (*s == ' ' || *s == '\t') s++; | |
2442 | if (*s++ == '-') { | |
2443 | while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--; | |
2444 | if (strnEQ(s2-4,"perl",4)) | |
2445 | /*SUPPRESS 530*/ | |
2446 | while (s = moreswitches(s)) ; | |
33b78306 | 2447 | } |
3280af22 NIS |
2448 | if (PL_cddir && PerlDir_chdir(PL_cddir) < 0) |
2449 | croak("Can't chdir to %s",PL_cddir); | |
83025b21 LW |
2450 | } |
2451 | } | |
2452 | } | |
2453 | ||
afe37c7d | 2454 | |
76e3520e | 2455 | STATIC void |
8ac85365 | 2456 | init_ids(void) |
352d5a3a | 2457 | { |
3280af22 NIS |
2458 | PL_uid = (int)PerlProc_getuid(); |
2459 | PL_euid = (int)PerlProc_geteuid(); | |
2460 | PL_gid = (int)PerlProc_getgid(); | |
2461 | PL_egid = (int)PerlProc_getegid(); | |
748a9306 | 2462 | #ifdef VMS |
b28d0864 NIS |
2463 | PL_uid |= PL_gid << 16; |
2464 | PL_euid |= PL_egid << 16; | |
748a9306 | 2465 | #endif |
3280af22 | 2466 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
748a9306 | 2467 | } |
79072805 | 2468 | |
76e3520e | 2469 | STATIC void |
8ac85365 | 2470 | forbid_setid(char *s) |
bbce6d69 | 2471 | { |
3280af22 | 2472 | if (PL_euid != PL_uid) |
bbce6d69 | 2473 | croak("No %s allowed while running setuid", s); |
3280af22 | 2474 | if (PL_egid != PL_gid) |
bbce6d69 | 2475 | croak("No %s allowed while running setgid", s); |
2476 | } | |
2477 | ||
76e3520e | 2478 | STATIC void |
8ac85365 | 2479 | init_debugger(void) |
748a9306 | 2480 | { |
11343788 | 2481 | dTHR; |
3280af22 NIS |
2482 | PL_curstash = PL_debstash; |
2483 | PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); | |
2484 | AvREAL_off(PL_dbargs); | |
2485 | PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); | |
2486 | PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); | |
2487 | PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); | |
2488 | PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); | |
2489 | sv_setiv(PL_DBsingle, 0); | |
2490 | PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); | |
2491 | sv_setiv(PL_DBtrace, 0); | |
2492 | PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); | |
2493 | sv_setiv(PL_DBsignal, 0); | |
2494 | PL_curstash = PL_defstash; | |
352d5a3a LW |
2495 | } |
2496 | ||
2ce36478 SM |
2497 | #ifndef STRESS_REALLOC |
2498 | #define REASONABLE(size) (size) | |
2499 | #else | |
2500 | #define REASONABLE(size) (1) /* unreasonable */ | |
2501 | #endif | |
2502 | ||
11343788 | 2503 | void |
8ac85365 | 2504 | init_stacks(ARGSproto) |
79072805 | 2505 | { |
e336de0d | 2506 | /* start with 128-item stack and 8K cxstack */ |
3280af22 | 2507 | PL_curstackinfo = new_stackinfo(REASONABLE(128), |
e336de0d | 2508 | REASONABLE(8192/sizeof(PERL_CONTEXT) - 1)); |
3280af22 NIS |
2509 | PL_curstackinfo->si_type = PERLSI_MAIN; |
2510 | PL_curstack = PL_curstackinfo->si_stack; | |
2511 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ | |
79072805 | 2512 | |
3280af22 NIS |
2513 | PL_stack_base = AvARRAY(PL_curstack); |
2514 | PL_stack_sp = PL_stack_base; | |
2515 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
8990e307 | 2516 | |
3280af22 NIS |
2517 | New(50,PL_tmps_stack,REASONABLE(128),SV*); |
2518 | PL_tmps_floor = -1; | |
2519 | PL_tmps_ix = -1; | |
2520 | PL_tmps_max = REASONABLE(128); | |
8990e307 | 2521 | |
3280af22 NIS |
2522 | New(54,PL_markstack,REASONABLE(32),I32); |
2523 | PL_markstack_ptr = PL_markstack; | |
2524 | PL_markstack_max = PL_markstack + REASONABLE(32); | |
79072805 | 2525 | |
e336de0d GS |
2526 | SET_MARKBASE; |
2527 | ||
3280af22 NIS |
2528 | New(54,PL_scopestack,REASONABLE(32),I32); |
2529 | PL_scopestack_ix = 0; | |
2530 | PL_scopestack_max = REASONABLE(32); | |
79072805 | 2531 | |
3280af22 NIS |
2532 | New(54,PL_savestack,REASONABLE(128),ANY); |
2533 | PL_savestack_ix = 0; | |
2534 | PL_savestack_max = REASONABLE(128); | |
79072805 | 2535 | |
3280af22 NIS |
2536 | New(54,PL_retstack,REASONABLE(16),OP*); |
2537 | PL_retstack_ix = 0; | |
2538 | PL_retstack_max = REASONABLE(16); | |
378cc40b | 2539 | } |
33b78306 | 2540 | |
2ce36478 SM |
2541 | #undef REASONABLE |
2542 | ||
76e3520e | 2543 | STATIC void |
8ac85365 | 2544 | nuke_stacks(void) |
6e72f9df | 2545 | { |
e858de61 | 2546 | dTHR; |
3280af22 NIS |
2547 | while (PL_curstackinfo->si_next) |
2548 | PL_curstackinfo = PL_curstackinfo->si_next; | |
2549 | while (PL_curstackinfo) { | |
2550 | PERL_SI *p = PL_curstackinfo->si_prev; | |
bac4b2ad | 2551 | /* curstackinfo->si_stack got nuked by sv_free_arenas() */ |
3280af22 NIS |
2552 | Safefree(PL_curstackinfo->si_cxstack); |
2553 | Safefree(PL_curstackinfo); | |
2554 | PL_curstackinfo = p; | |
e336de0d | 2555 | } |
3280af22 NIS |
2556 | Safefree(PL_tmps_stack); |
2557 | Safefree(PL_markstack); | |
2558 | Safefree(PL_scopestack); | |
2559 | Safefree(PL_savestack); | |
2560 | Safefree(PL_retstack); | |
5f05dabc | 2561 | DEBUG( { |
3280af22 NIS |
2562 | Safefree(PL_debname); |
2563 | Safefree(PL_debdelim); | |
5f05dabc | 2564 | } ) |
378cc40b | 2565 | } |
33b78306 | 2566 | |
76e3520e | 2567 | #ifndef PERL_OBJECT |
760ac839 | 2568 | static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
76e3520e | 2569 | #endif |
7aa04957 | 2570 | |
76e3520e | 2571 | STATIC void |
8ac85365 | 2572 | init_lexer(void) |
8990e307 | 2573 | { |
76e3520e GS |
2574 | #ifdef PERL_OBJECT |
2575 | PerlIO *tmpfp; | |
2576 | #endif | |
3280af22 NIS |
2577 | tmpfp = PL_rsfp; |
2578 | PL_rsfp = Nullfp; | |
2579 | lex_start(PL_linestr); | |
2580 | PL_rsfp = tmpfp; | |
2581 | PL_subname = newSVpv("main",4); | |
8990e307 LW |
2582 | } |
2583 | ||
76e3520e | 2584 | STATIC void |
8ac85365 | 2585 | init_predump_symbols(void) |
45d8adaa | 2586 | { |
11343788 | 2587 | dTHR; |
93a17b20 | 2588 | GV *tmpgv; |
a0d0e21e | 2589 | GV *othergv; |
79072805 | 2590 | |
e1c148c2 | 2591 | sv_setpvn(perl_get_sv("\"", TRUE), " ", 1); |
3280af22 NIS |
2592 | PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
2593 | GvMULTI_on(PL_stdingv); | |
2594 | IoIFP(GvIOp(PL_stdingv)) = PerlIO_stdin(); | |
adbc6bb1 | 2595 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 | 2596 | GvMULTI_on(tmpgv); |
3280af22 | 2597 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_stdingv)); |
79072805 | 2598 | |
85e6fe83 | 2599 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 | 2600 | GvMULTI_on(tmpgv); |
760ac839 | 2601 | IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout(); |
4633a7c4 | 2602 | setdefout(tmpgv); |
adbc6bb1 | 2603 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 | 2604 | GvMULTI_on(tmpgv); |
3280af22 | 2605 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_defoutgv)); |
79072805 | 2606 | |
a0d0e21e | 2607 | othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
a5f75d66 | 2608 | GvMULTI_on(othergv); |
760ac839 | 2609 | IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr(); |
adbc6bb1 | 2610 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 | 2611 | GvMULTI_on(tmpgv); |
a0d0e21e | 2612 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv)); |
79072805 | 2613 | |
3280af22 | 2614 | PL_statname = NEWSV(66,0); /* last filename we did stat on */ |
ab821d7f | 2615 | |
3280af22 NIS |
2616 | if (!PL_osname) |
2617 | PL_osname = savepv(OSNAME); | |
79072805 | 2618 | } |
33b78306 | 2619 | |
76e3520e | 2620 | STATIC void |
8ac85365 | 2621 | init_postdump_symbols(register int argc, register char **argv, register char **env) |
33b78306 | 2622 | { |
a863c7d1 | 2623 | dTHR; |
79072805 LW |
2624 | char *s; |
2625 | SV *sv; | |
2626 | GV* tmpgv; | |
fe14fcc3 | 2627 | |
79072805 | 2628 | argc--,argv++; /* skip name of script */ |
3280af22 | 2629 | if (PL_doswitches) { |
79072805 LW |
2630 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
2631 | if (!argv[0][1]) | |
2632 | break; | |
2633 | if (argv[0][1] == '-') { | |
2634 | argc--,argv++; | |
2635 | break; | |
2636 | } | |
93a17b20 | 2637 | if (s = strchr(argv[0], '=')) { |
79072805 | 2638 | *s++ = '\0'; |
85e6fe83 | 2639 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 LW |
2640 | } |
2641 | else | |
85e6fe83 | 2642 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 | 2643 | } |
79072805 | 2644 | } |
3280af22 NIS |
2645 | PL_toptarget = NEWSV(0,0); |
2646 | sv_upgrade(PL_toptarget, SVt_PVFM); | |
2647 | sv_setpvn(PL_toptarget, "", 0); | |
2648 | PL_bodytarget = NEWSV(0,0); | |
2649 | sv_upgrade(PL_bodytarget, SVt_PVFM); | |
2650 | sv_setpvn(PL_bodytarget, "", 0); | |
2651 | PL_formtarget = PL_bodytarget; | |
79072805 | 2652 | |
bbce6d69 | 2653 | TAINT; |
85e6fe83 | 2654 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
3280af22 | 2655 | sv_setpv(GvSV(tmpgv),PL_origfilename); |
79072805 LW |
2656 | magicname("0", "0", 1); |
2657 | } | |
85e6fe83 | 2658 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
3280af22 NIS |
2659 | sv_setpv(GvSV(tmpgv),PL_origargv[0]); |
2660 | if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { | |
2661 | GvMULTI_on(PL_argvgv); | |
2662 | (void)gv_AVadd(PL_argvgv); | |
2663 | av_clear(GvAVn(PL_argvgv)); | |
79072805 | 2664 | for (; argc > 0; argc--,argv++) { |
3280af22 | 2665 | av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0)); |
79072805 LW |
2666 | } |
2667 | } | |
3280af22 | 2668 | if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 | 2669 | HV *hv; |
3280af22 NIS |
2670 | GvMULTI_on(PL_envgv); |
2671 | hv = GvHVn(PL_envgv); | |
2672 | hv_magic(hv, PL_envgv, 'E'); | |
a0d0e21e | 2673 | #ifndef VMS /* VMS doesn't have environ array */ |
4633a7c4 LW |
2674 | /* Note that if the supplied env parameter is actually a copy |
2675 | of the global environ then it may now point to free'd memory | |
2676 | if the environment has been modified since. To avoid this | |
2677 | problem we treat env==NULL as meaning 'use the default' | |
2678 | */ | |
2679 | if (!env) | |
2680 | env = environ; | |
5aabfad6 | 2681 | if (env != environ) |
79072805 LW |
2682 | environ[0] = Nullch; |
2683 | for (; *env; env++) { | |
93a17b20 | 2684 | if (!(s = strchr(*env,'='))) |
79072805 LW |
2685 | continue; |
2686 | *s++ = '\0'; | |
60ce6247 | 2687 | #if defined(MSDOS) |
137443ea | 2688 | (void)strupr(*env); |
2689 | #endif | |
79072805 LW |
2690 | sv = newSVpv(s--,0); |
2691 | (void)hv_store(hv, *env, s - *env, sv, 0); | |
2692 | *s = '='; | |
3e3baf6d TB |
2693 | #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV) |
2694 | /* Sins of the RTL. See note in my_setenv(). */ | |
76e3520e | 2695 | (void)PerlEnv_putenv(savepv(*env)); |
3e3baf6d | 2696 | #endif |
fe14fcc3 | 2697 | } |
4550b24a | 2698 | #endif |
2699 | #ifdef DYNAMIC_ENV_FETCH | |
2700 | HvNAME(hv) = savepv(ENV_HV_NAME); | |
2701 | #endif | |
79072805 | 2702 | } |
bbce6d69 | 2703 | TAINT_NOT; |
85e6fe83 | 2704 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
1e422769 | 2705 | sv_setiv(GvSV(tmpgv), (IV)getpid()); |
33b78306 | 2706 | } |
34de22dd | 2707 | |
76e3520e | 2708 | STATIC void |
8ac85365 | 2709 | init_perllib(void) |
34de22dd | 2710 | { |
85e6fe83 | 2711 | char *s; |
3280af22 | 2712 | if (!PL_tainting) { |
552a7a9b | 2713 | #ifndef VMS |
76e3520e | 2714 | s = PerlEnv_getenv("PERL5LIB"); |
85e6fe83 | 2715 | if (s) |
774d564b | 2716 | incpush(s, TRUE); |
85e6fe83 | 2717 | else |
76e3520e | 2718 | incpush(PerlEnv_getenv("PERLLIB"), FALSE); |
552a7a9b | 2719 | #else /* VMS */ |
2720 | /* Treat PERL5?LIB as a possible search list logical name -- the | |
2721 | * "natural" VMS idiom for a Unix path string. We allow each | |
2722 | * element to be a set of |-separated directories for compatibility. | |
2723 | */ | |
2724 | char buf[256]; | |
2725 | int idx = 0; | |
2726 | if (my_trnlnm("PERL5LIB",buf,0)) | |
774d564b | 2727 | do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx)); |
552a7a9b | 2728 | else |
774d564b | 2729 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE); |
552a7a9b | 2730 | #endif /* VMS */ |
85e6fe83 | 2731 | } |
34de22dd | 2732 | |
c90c0ff4 | 2733 | /* Use the ~-expanded versions of APPLLIB (undocumented), |
dfe9444c | 2734 | ARCHLIB PRIVLIB SITEARCH and SITELIB |
df5cef82 | 2735 | */ |
4633a7c4 | 2736 | #ifdef APPLLIB_EXP |
43051805 | 2737 | incpush(APPLLIB_EXP, TRUE); |
16d20bd9 | 2738 | #endif |
4633a7c4 | 2739 | |
fed7345c | 2740 | #ifdef ARCHLIB_EXP |
774d564b | 2741 | incpush(ARCHLIB_EXP, FALSE); |
a0d0e21e | 2742 | #endif |
fed7345c AD |
2743 | #ifndef PRIVLIB_EXP |
2744 | #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" | |
34de22dd | 2745 | #endif |
00dc2f4f GS |
2746 | #if defined(WIN32) |
2747 | incpush(PRIVLIB_EXP, TRUE); | |
2748 | #else | |
774d564b | 2749 | incpush(PRIVLIB_EXP, FALSE); |
00dc2f4f | 2750 | #endif |
4633a7c4 LW |
2751 | |
2752 | #ifdef SITEARCH_EXP | |
774d564b | 2753 | incpush(SITEARCH_EXP, FALSE); |
4633a7c4 LW |
2754 | #endif |
2755 | #ifdef SITELIB_EXP | |
00dc2f4f GS |
2756 | #if defined(WIN32) |
2757 | incpush(SITELIB_EXP, TRUE); | |
2758 | #else | |
774d564b | 2759 | incpush(SITELIB_EXP, FALSE); |
4633a7c4 | 2760 | #endif |
00dc2f4f | 2761 | #endif |
3280af22 | 2762 | if (!PL_tainting) |
774d564b | 2763 | incpush(".", FALSE); |
2764 | } | |
2765 | ||
2766 | #if defined(DOSISH) | |
2767 | # define PERLLIB_SEP ';' | |
2768 | #else | |
2769 | # if defined(VMS) | |
2770 | # define PERLLIB_SEP '|' | |
2771 | # else | |
2772 | # define PERLLIB_SEP ':' | |
2773 | # endif | |
2774 | #endif | |
2775 | #ifndef PERLLIB_MANGLE | |
2776 | # define PERLLIB_MANGLE(s,n) (s) | |
2777 | #endif | |
2778 | ||
76e3520e | 2779 | STATIC void |
8ac85365 | 2780 | incpush(char *p, int addsubdirs) |
774d564b | 2781 | { |
2782 | SV *subdir = Nullsv; | |
774d564b | 2783 | |
2784 | if (!p) | |
2785 | return; | |
2786 | ||
2787 | if (addsubdirs) { | |
00db4c45 | 2788 | subdir = sv_newmortal(); |
3280af22 NIS |
2789 | if (!PL_archpat_auto) { |
2790 | STRLEN len = (sizeof(ARCHNAME) + strlen(PL_patchlevel) | |
774d564b | 2791 | + sizeof("//auto")); |
3280af22 NIS |
2792 | New(55, PL_archpat_auto, len, char); |
2793 | sprintf(PL_archpat_auto, "/%s/%s/auto", ARCHNAME, PL_patchlevel); | |
aa689395 | 2794 | #ifdef VMS |
2795 | for (len = sizeof(ARCHNAME) + 2; | |
6b88bc9c GS |
2796 | PL_archpat_auto[len] != '\0' && PL_archpat_auto[len] != '/'; len++) |
2797 | if (PL_archpat_auto[len] == '.') PL_archpat_auto[len] = '_'; | |
aa689395 | 2798 | #endif |
774d564b | 2799 | } |
2800 | } | |
2801 | ||
2802 | /* Break at all separators */ | |
2803 | while (p && *p) { | |
8c52afec | 2804 | SV *libdir = NEWSV(55,0); |
774d564b | 2805 | char *s; |
2806 | ||
2807 | /* skip any consecutive separators */ | |
2808 | while ( *p == PERLLIB_SEP ) { | |
2809 | /* Uncomment the next line for PATH semantics */ | |
6b88bc9c | 2810 | /* av_push(GvAVn(PL_incgv), newSVpv(".", 1)); */ |
774d564b | 2811 | p++; |
2812 | } | |
2813 | ||
2814 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { | |
2815 | sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)), | |
2816 | (STRLEN)(s - p)); | |
2817 | p = s + 1; | |
2818 | } | |
2819 | else { | |
2820 | sv_setpv(libdir, PERLLIB_MANGLE(p, 0)); | |
2821 | p = Nullch; /* break out */ | |
2822 | } | |
2823 | ||
2824 | /* | |
2825 | * BEFORE pushing libdir onto @INC we may first push version- and | |
2826 | * archname-specific sub-directories. | |
2827 | */ | |
2828 | if (addsubdirs) { | |
2829 | struct stat tmpstatbuf; | |
aa689395 | 2830 | #ifdef VMS |
2831 | char *unix; | |
2832 | STRLEN len; | |
774d564b | 2833 | |
2d8e6c8d | 2834 | if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) { |
aa689395 | 2835 | len = strlen(unix); |
2836 | while (unix[len-1] == '/') len--; /* Cosmetic */ | |
2837 | sv_usepvn(libdir,unix,len); | |
2838 | } | |
2839 | else | |
2840 | PerlIO_printf(PerlIO_stderr(), | |
2841 | "Failed to unixify @INC element \"%s\"\n", | |
2d8e6c8d | 2842 | SvPV(libdir,len)); |
aa689395 | 2843 | #endif |
4fdae800 | 2844 | /* .../archname/version if -d .../archname/version/auto */ |
774d564b | 2845 | sv_setsv(subdir, libdir); |
3280af22 | 2846 | sv_catpv(subdir, PL_archpat_auto); |
76e3520e | 2847 | if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 && |
774d564b | 2848 | S_ISDIR(tmpstatbuf.st_mode)) |
3280af22 | 2849 | av_push(GvAVn(PL_incgv), |
774d564b | 2850 | newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto")); |
2851 | ||
4fdae800 | 2852 | /* .../archname if -d .../archname/auto */ |
774d564b | 2853 | sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME), |
3280af22 | 2854 | strlen(PL_patchlevel) + 1, "", 0); |
76e3520e | 2855 | if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 && |
774d564b | 2856 | S_ISDIR(tmpstatbuf.st_mode)) |
3280af22 | 2857 | av_push(GvAVn(PL_incgv), |
774d564b | 2858 | newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto")); |
2859 | } | |
2860 | ||
2861 | /* finally push this lib directory on the end of @INC */ | |
3280af22 | 2862 | av_push(GvAVn(PL_incgv), libdir); |
774d564b | 2863 | } |
34de22dd | 2864 | } |
93a17b20 | 2865 | |
199100c8 | 2866 | #ifdef USE_THREADS |
76e3520e | 2867 | STATIC struct perl_thread * |
199100c8 MB |
2868 | init_main_thread() |
2869 | { | |
52e1cb5e | 2870 | struct perl_thread *thr; |
199100c8 MB |
2871 | XPV *xpv; |
2872 | ||
52e1cb5e | 2873 | Newz(53, thr, 1, struct perl_thread); |
533c011a | 2874 | PL_curcop = &PL_compiling; |
199100c8 | 2875 | thr->cvcache = newHV(); |
54b9620d | 2876 | thr->threadsv = newAV(); |
940cb80d | 2877 | /* thr->threadsvp is set when find_threadsv is called */ |
199100c8 | 2878 | thr->specific = newAV(); |
38a03e6e | 2879 | thr->errhv = newHV(); |
199100c8 MB |
2880 | thr->flags = THRf_R_JOINABLE; |
2881 | MUTEX_INIT(&thr->mutex); | |
2882 | /* Handcraft thrsv similarly to mess_sv */ | |
533c011a | 2883 | New(53, PL_thrsv, 1, SV); |
199100c8 | 2884 | Newz(53, xpv, 1, XPV); |
533c011a NIS |
2885 | SvFLAGS(PL_thrsv) = SVt_PV; |
2886 | SvANY(PL_thrsv) = (void*)xpv; | |
2887 | SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */ | |
2888 | SvPVX(PL_thrsv) = (char*)thr; | |
2889 | SvCUR_set(PL_thrsv, sizeof(thr)); | |
2890 | SvLEN_set(PL_thrsv, sizeof(thr)); | |
2891 | *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */ | |
2892 | thr->oursv = PL_thrsv; | |
2893 | PL_chopset = " \n-"; | |
3967c732 | 2894 | PL_dumpindent = 4; |
533c011a NIS |
2895 | |
2896 | MUTEX_LOCK(&PL_threads_mutex); | |
2897 | PL_nthreads++; | |
199100c8 MB |
2898 | thr->tid = 0; |
2899 | thr->next = thr; | |
2900 | thr->prev = thr; | |
533c011a | 2901 | MUTEX_UNLOCK(&PL_threads_mutex); |
199100c8 | 2902 | |
4b026b9e GS |
2903 | #ifdef HAVE_THREAD_INTERN |
2904 | init_thread_intern(thr); | |
235db74f GS |
2905 | #endif |
2906 | ||
2907 | #ifdef SET_THREAD_SELF | |
2908 | SET_THREAD_SELF(thr); | |
199100c8 MB |
2909 | #else |
2910 | thr->self = pthread_self(); | |
235db74f | 2911 | #endif /* SET_THREAD_SELF */ |
199100c8 MB |
2912 | SET_THR(thr); |
2913 | ||
2914 | /* | |
2915 | * These must come after the SET_THR because sv_setpvn does | |
2916 | * SvTAINT and the taint fields require dTHR. | |
2917 | */ | |
533c011a NIS |
2918 | PL_toptarget = NEWSV(0,0); |
2919 | sv_upgrade(PL_toptarget, SVt_PVFM); | |
2920 | sv_setpvn(PL_toptarget, "", 0); | |
2921 | PL_bodytarget = NEWSV(0,0); | |
2922 | sv_upgrade(PL_bodytarget, SVt_PVFM); | |
2923 | sv_setpvn(PL_bodytarget, "", 0); | |
2924 | PL_formtarget = PL_bodytarget; | |
2faa37cc | 2925 | thr->errsv = newSVpv("", 0); |
78857c3c | 2926 | (void) find_threadsv("@"); /* Ensure $@ is initialised early */ |
5c0ca799 | 2927 | |
533c011a NIS |
2928 | PL_maxscream = -1; |
2929 | PL_regcompp = FUNC_NAME_TO_PTR(pregcomp); | |
2930 | PL_regexecp = FUNC_NAME_TO_PTR(regexec_flags); | |
2931 | PL_regindent = 0; | |
2932 | PL_reginterp_cnt = 0; | |
5c0ca799 | 2933 | |
199100c8 MB |
2934 | return thr; |
2935 | } | |
2936 | #endif /* USE_THREADS */ | |
2937 | ||
93a17b20 | 2938 | void |
76e3520e | 2939 | call_list(I32 oldscope, AV *paramList) |
93a17b20 | 2940 | { |
11343788 | 2941 | dTHR; |
3280af22 | 2942 | line_t oldline = PL_curcop->cop_line; |
22921e25 CS |
2943 | STRLEN len; |
2944 | dJMPENV; | |
6224f72b | 2945 | int ret; |
93a17b20 | 2946 | |
76e3520e GS |
2947 | while (AvFILL(paramList) >= 0) { |
2948 | CV *cv = (CV*)av_shift(paramList); | |
93a17b20 | 2949 | |
8990e307 | 2950 | SAVEFREESV(cv); |
a0d0e21e | 2951 | |
6224f72b GS |
2952 | JMPENV_PUSH(ret); |
2953 | switch (ret) { | |
2954 | case 0: { | |
38a03e6e | 2955 | SV* atsv = ERRSV; |
3280af22 | 2956 | PUSHMARK(PL_stack_sp); |
748a9306 | 2957 | perl_call_sv((SV*)cv, G_EVAL|G_DISCARD); |
12f917ad | 2958 | (void)SvPV(atsv, len); |
748a9306 | 2959 | if (len) { |
54310121 | 2960 | JMPENV_POP; |
3280af22 NIS |
2961 | PL_curcop = &PL_compiling; |
2962 | PL_curcop->cop_line = oldline; | |
2963 | if (paramList == PL_beginav) | |
12f917ad | 2964 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); |
748a9306 | 2965 | else |
12f917ad | 2966 | sv_catpv(atsv, "END failed--cleanup aborted"); |
3280af22 | 2967 | while (PL_scopestack_ix > oldscope) |
2ae324a7 | 2968 | LEAVE; |
12f917ad | 2969 | croak("%s", SvPVX(atsv)); |
748a9306 | 2970 | } |
a0d0e21e | 2971 | } |
85e6fe83 | 2972 | break; |
6224f72b | 2973 | case 1: |
f86702cc | 2974 | STATUS_ALL_FAILURE; |
85e6fe83 | 2975 | /* FALL THROUGH */ |
6224f72b | 2976 | case 2: |
85e6fe83 | 2977 | /* my_exit() was called */ |
3280af22 | 2978 | while (PL_scopestack_ix > oldscope) |
2ae324a7 | 2979 | LEAVE; |
84902520 | 2980 | FREETMPS; |
3280af22 NIS |
2981 | PL_curstash = PL_defstash; |
2982 | if (PL_endav) | |
2983 | call_list(oldscope, PL_endav); | |
54310121 | 2984 | JMPENV_POP; |
3280af22 NIS |
2985 | PL_curcop = &PL_compiling; |
2986 | PL_curcop->cop_line = oldline; | |
2987 | if (PL_statusvalue) { | |
2988 | if (paramList == PL_beginav) | |
a0d0e21e | 2989 | croak("BEGIN failed--compilation aborted"); |
85e6fe83 | 2990 | else |
a0d0e21e | 2991 | croak("END failed--cleanup aborted"); |
85e6fe83 | 2992 | } |
f86702cc | 2993 | my_exit_jump(); |
85e6fe83 | 2994 | /* NOTREACHED */ |
6224f72b | 2995 | case 3: |
3280af22 | 2996 | if (!PL_restartop) { |
760ac839 | 2997 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e | 2998 | FREETMPS; |
85e6fe83 LW |
2999 | break; |
3000 | } | |
54310121 | 3001 | JMPENV_POP; |
3280af22 NIS |
3002 | PL_curcop = &PL_compiling; |
3003 | PL_curcop->cop_line = oldline; | |
6224f72b | 3004 | JMPENV_JUMP(3); |
8990e307 | 3005 | } |
54310121 | 3006 | JMPENV_POP; |
93a17b20 | 3007 | } |
93a17b20 | 3008 | } |
93a17b20 | 3009 | |
f86702cc | 3010 | void |
8ac85365 | 3011 | my_exit(U32 status) |
f86702cc | 3012 | { |
5dc0d613 MB |
3013 | dTHR; |
3014 | ||
8b73bbec | 3015 | DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n", |
a863c7d1 | 3016 | thr, (unsigned long) status)); |
f86702cc | 3017 | switch (status) { |
3018 | case 0: | |
3019 | STATUS_ALL_SUCCESS; | |
3020 | break; | |
3021 | case 1: | |
3022 | STATUS_ALL_FAILURE; | |
3023 | break; | |
3024 | default: | |
3025 | STATUS_NATIVE_SET(status); | |
3026 | break; | |
3027 | } | |
3028 | my_exit_jump(); | |
3029 | } | |
3030 | ||
3031 | void | |
8ac85365 | 3032 | my_failure_exit(void) |
f86702cc | 3033 | { |
3034 | #ifdef VMS | |
3035 | if (vaxc$errno & 1) { | |
4fdae800 | 3036 | if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */ |
3037 | STATUS_NATIVE_SET(44); | |
f86702cc | 3038 | } |
3039 | else { | |
ff0cee69 | 3040 | if (!vaxc$errno && errno) /* unlikely */ |
4fdae800 | 3041 | STATUS_NATIVE_SET(44); |
f86702cc | 3042 | else |
4fdae800 | 3043 | STATUS_NATIVE_SET(vaxc$errno); |
f86702cc | 3044 | } |
3045 | #else | |
9b599b2a | 3046 | int exitstatus; |
f86702cc | 3047 | if (errno & 255) |
3048 | STATUS_POSIX_SET(errno); | |
9b599b2a GS |
3049 | else { |
3050 | exitstatus = STATUS_POSIX >> 8; | |
3051 | if (exitstatus & 255) | |
3052 | STATUS_POSIX_SET(exitstatus); | |
3053 | else | |
3054 | STATUS_POSIX_SET(255); | |
3055 | } | |
f86702cc | 3056 | #endif |
3057 | my_exit_jump(); | |
93a17b20 LW |
3058 | } |
3059 | ||
76e3520e | 3060 | STATIC void |
8ac85365 | 3061 | my_exit_jump(void) |
f86702cc | 3062 | { |
de616352 | 3063 | dTHR; |
c09156bb | 3064 | register PERL_CONTEXT *cx; |
f86702cc | 3065 | I32 gimme; |
3066 | SV **newsp; | |
3067 | ||
3280af22 NIS |
3068 | if (PL_e_script) { |
3069 | SvREFCNT_dec(PL_e_script); | |
3070 | PL_e_script = Nullsv; | |
f86702cc | 3071 | } |
3072 | ||
3280af22 | 3073 | POPSTACK_TO(PL_mainstack); |
f86702cc | 3074 | if (cxstack_ix >= 0) { |
3075 | if (cxstack_ix > 0) | |
3076 | dounwind(0); | |
3280af22 | 3077 | POPBLOCK(cx,PL_curpm); |
f86702cc | 3078 | LEAVE; |
3079 | } | |
ff0cee69 | 3080 | |
6224f72b | 3081 | JMPENV_JUMP(2); |
f86702cc | 3082 | } |
873ef191 | 3083 | |
7a5f8e82 DL |
3084 | #ifdef PERL_OBJECT |
3085 | #define NO_XSLOCKS | |
3086 | #endif /* PERL_OBJECT */ | |
873ef191 GS |
3087 | |
3088 | #include "XSUB.h" | |
3089 | ||
3090 | static I32 | |
6224f72b GS |
3091 | #ifdef PERL_OBJECT |
3092 | read_e_script(CPerlObj *pPerl, int idx, SV *buf_sv, int maxlen) | |
3093 | #else | |
3094 | read_e_script(int idx, SV *buf_sv, int maxlen) | |
3095 | #endif | |
873ef191 GS |
3096 | { |
3097 | char *p, *nl; | |
3280af22 | 3098 | p = SvPVX(PL_e_script); |
873ef191 | 3099 | nl = strchr(p, '\n'); |
3280af22 | 3100 | nl = (nl) ? nl+1 : SvEND(PL_e_script); |
7dfe3f66 PM |
3101 | if (nl-p == 0) { |
3102 | filter_del(read_e_script); | |
873ef191 | 3103 | return 0; |
7dfe3f66 | 3104 | } |
873ef191 | 3105 | sv_catpvn(buf_sv, p, nl-p); |
3280af22 | 3106 | sv_chop(PL_e_script, nl); |
873ef191 GS |
3107 | return 1; |
3108 | } | |
3109 | ||
1163b5c4 | 3110 |