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" | |
378cc40b | 16 | |
df5cef82 | 17 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e LW |
18 | #ifdef I_UNISTD |
19 | #include <unistd.h> | |
20 | #endif | |
a0d0e21e | 21 | |
54310121 | 22 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) |
23 | char *getenv _((char *)); /* Usually in <stdlib.h> */ | |
24 | #endif | |
25 | ||
51fa4eea JH |
26 | #ifdef I_FCNTL |
27 | #include <fcntl.h> | |
28 | #endif | |
29 | #ifdef I_SYS_FILE | |
30 | #include <sys/file.h> | |
31 | #endif | |
32 | ||
a687059c LW |
33 | #ifdef IAMSUID |
34 | #ifndef DOSUID | |
35 | #define DOSUID | |
36 | #endif | |
37 | #endif | |
378cc40b | 38 | |
a687059c LW |
39 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
40 | #ifdef DOSUID | |
41 | #undef DOSUID | |
42 | #endif | |
43 | #endif | |
8d063cd8 | 44 | |
873ef191 GS |
45 | #ifdef PERL_OBJECT |
46 | static I32 read_e_script _((CPerlObj* pPerl, int idx, SV *buf_sv, int maxlen)); | |
47 | #else | |
a0d0e21e | 48 | static void find_beginning _((void)); |
bbce6d69 | 49 | static void forbid_setid _((char *)); |
774d564b | 50 | static void incpush _((char *, int)); |
cb68f92d | 51 | static void init_interp _((void)); |
748a9306 | 52 | static void init_ids _((void)); |
a0d0e21e LW |
53 | static void init_debugger _((void)); |
54 | static void init_lexer _((void)); | |
55 | static void init_main_stash _((void)); | |
199100c8 | 56 | #ifdef USE_THREADS |
52e1cb5e | 57 | static struct perl_thread * init_main_thread _((void)); |
199100c8 | 58 | #endif /* USE_THREADS */ |
a0d0e21e LW |
59 | static void init_perllib _((void)); |
60 | static void init_postdump_symbols _((int, char **, char **)); | |
61 | static void init_predump_symbols _((void)); | |
f86702cc | 62 | static void my_exit_jump _((void)) __attribute__((noreturn)); |
6e72f9df | 63 | static void nuke_stacks _((void)); |
01f988be | 64 | static void open_script _((char *, bool, SV *, int *fd)); |
ab821d7f | 65 | static void usage _((char *)); |
104d25b7 JH |
66 | #ifdef IAMSUID |
67 | static int fd_on_nosuid_fs _((int)); | |
68 | #endif | |
01f988be | 69 | static void validate_suid _((char *, char*, int)); |
afe37c7d | 70 | static I32 read_e_script _((int idx, SV *buf_sv, int maxlen)); |
76e3520e | 71 | #endif |
96436eeb | 72 | |
01f988be GS |
73 | #ifdef PERL_OBJECT |
74 | CPerlObj* perl_alloc(IPerlMem* ipM, IPerlEnv* ipE, IPerlStdIO* ipStd, | |
75 | IPerlLIO* ipLIO, IPerlDir* ipD, IPerlSock* ipS, IPerlProc* ipP) | |
76 | { | |
77 | CPerlObj* pPerl = new(ipM) CPerlObj(ipM, ipE, ipStd, ipLIO, ipD, ipS, ipP); | |
78 | if(pPerl != NULL) | |
79 | pPerl->Init(); | |
79072805 | 80 | |
01f988be GS |
81 | return pPerl; |
82 | } | |
83 | #else | |
93a17b20 | 84 | PerlInterpreter * |
8ac85365 | 85 | perl_alloc(void) |
79072805 | 86 | { |
93a17b20 | 87 | PerlInterpreter *sv_interp; |
79072805 | 88 | |
3280af22 | 89 | PL_curinterp = 0; |
93a17b20 | 90 | New(53, sv_interp, 1, PerlInterpreter); |
79072805 LW |
91 | return sv_interp; |
92 | } | |
01f988be | 93 | #endif /* PERL_OBJECT */ |
79072805 LW |
94 | |
95 | void | |
76e3520e | 96 | #ifdef PERL_OBJECT |
22c35a8c | 97 | perl_construct(void) |
76e3520e | 98 | #else |
8ac85365 | 99 | perl_construct(register PerlInterpreter *sv_interp) |
76e3520e | 100 | #endif |
79072805 | 101 | { |
a863c7d1 MB |
102 | #ifdef USE_THREADS |
103 | int i; | |
104 | #ifndef FAKE_THREADS | |
52e1cb5e | 105 | struct perl_thread *thr; |
a863c7d1 MB |
106 | #endif /* FAKE_THREADS */ |
107 | #endif /* USE_THREADS */ | |
11343788 | 108 | |
76e3520e | 109 | #ifndef PERL_OBJECT |
3280af22 | 110 | if (!(PL_curinterp = sv_interp)) |
79072805 | 111 | return; |
76e3520e | 112 | #endif |
79072805 | 113 | |
8990e307 | 114 | #ifdef MULTIPLICITY |
8f872242 | 115 | ++PL_ninterps; |
93a17b20 | 116 | Zero(sv_interp, 1, PerlInterpreter); |
8990e307 | 117 | #endif |
79072805 | 118 | |
33f46ff6 | 119 | /* Init the real globals (and main thread)? */ |
3280af22 | 120 | if (!PL_linestr) { |
11343788 | 121 | #ifdef USE_THREADS |
8023c3ce | 122 | |
33f46ff6 | 123 | INIT_THREADS; |
d55594ae GS |
124 | #ifdef ALLOC_THREAD_KEY |
125 | ALLOC_THREAD_KEY; | |
126 | #else | |
533c011a | 127 | if (pthread_key_create(&PL_thr_key, 0)) |
a863c7d1 | 128 | croak("panic: pthread_key_create"); |
d55594ae | 129 | #endif |
533c011a | 130 | MUTEX_INIT(&PL_sv_mutex); |
a863c7d1 MB |
131 | /* |
132 | * Safe to use basic SV functions from now on (though | |
133 | * not things like mortals or tainting yet). | |
134 | */ | |
533c011a NIS |
135 | MUTEX_INIT(&PL_eval_mutex); |
136 | COND_INIT(&PL_eval_cond); | |
137 | MUTEX_INIT(&PL_threads_mutex); | |
138 | COND_INIT(&PL_nthreads_cond); | |
dce16143 | 139 | #ifdef EMULATE_ATOMIC_REFCOUNTS |
533c011a | 140 | MUTEX_INIT(&PL_svref_mutex); |
dce16143 | 141 | #endif /* EMULATE_ATOMIC_REFCOUNTS */ |
a863c7d1 | 142 | |
5ff3f7a4 GS |
143 | MUTEX_INIT(&PL_cred_mutex); |
144 | ||
199100c8 | 145 | thr = init_main_thread(); |
11343788 MB |
146 | #endif /* USE_THREADS */ |
147 | ||
2aea9f8a GS |
148 | PL_curcop = &PL_compiling; /* needed by ckWARN, right away */ |
149 | ||
3280af22 NIS |
150 | PL_linestr = NEWSV(65,79); |
151 | sv_upgrade(PL_linestr,SVt_PVIV); | |
79072805 | 152 | |
3280af22 | 153 | if (!SvREADONLY(&PL_sv_undef)) { |
d689ffdd JP |
154 | /* set read-only and try to insure than we wont see REFCNT==0 |
155 | very often */ | |
156 | ||
3280af22 NIS |
157 | SvREADONLY_on(&PL_sv_undef); |
158 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
79072805 | 159 | |
3280af22 NIS |
160 | sv_setpv(&PL_sv_no,PL_No); |
161 | SvNV(&PL_sv_no); | |
162 | SvREADONLY_on(&PL_sv_no); | |
163 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; | |
79072805 | 164 | |
3280af22 NIS |
165 | sv_setpv(&PL_sv_yes,PL_Yes); |
166 | SvNV(&PL_sv_yes); | |
167 | SvREADONLY_on(&PL_sv_yes); | |
168 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; | |
6e72f9df | 169 | } |
79072805 | 170 | |
76e3520e GS |
171 | #ifdef PERL_OBJECT |
172 | /* TODO: */ | |
6b88bc9c | 173 | /* PL_sighandlerp = sighandler; */ |
76e3520e | 174 | #else |
3280af22 | 175 | PL_sighandlerp = sighandler; |
76e3520e | 176 | #endif |
3280af22 | 177 | PL_pidstatus = newHV(); |
44a8e56a | 178 | |
79072805 LW |
179 | #ifdef MSDOS |
180 | /* | |
181 | * There is no way we can refer to them from Perl so close them to save | |
182 | * space. The other alternative would be to provide STDAUX and STDPRN | |
183 | * filehandles. | |
184 | */ | |
185 | (void)fclose(stdaux); | |
186 | (void)fclose(stdprn); | |
187 | #endif | |
188 | } | |
189 | ||
3280af22 NIS |
190 | PL_nrs = newSVpv("\n", 1); |
191 | PL_rs = SvREFCNT_inc(PL_nrs); | |
dc92893f | 192 | |
1a441de9 | 193 | init_stacks(ARGS); |
8990e307 | 194 | #ifdef MULTIPLICITY |
cb68f92d | 195 | init_interp(); |
8f872242 | 196 | PL_perl_destruct_level = 1; |
8ebc5c01 | 197 | #else |
3280af22 | 198 | if (PL_perl_destruct_level > 0) |
cb68f92d | 199 | init_interp(); |
79072805 LW |
200 | #endif |
201 | ||
748a9306 | 202 | init_ids(); |
3280af22 | 203 | PL_lex_state = LEX_NOTPARSING; |
a5f75d66 | 204 | |
3280af22 NIS |
205 | PL_start_env.je_prev = NULL; |
206 | PL_start_env.je_ret = -1; | |
207 | PL_start_env.je_mustcatch = TRUE; | |
208 | PL_top_env = &PL_start_env; | |
f86702cc | 209 | STATUS_ALL_SUCCESS; |
210 | ||
36477c24 | 211 | SET_NUMERIC_STANDARD(); |
cceca5ed GS |
212 | #if defined(PERL_SUBVERSION) && PERL_SUBVERSION > 0 |
213 | sprintf(PL_patchlevel, "%7.5f", (double) PERL_REVISION | |
214 | + ((double) PERL_VERSION / (double) 1000) | |
215 | + ((double) PERL_SUBVERSION / (double) 100000)); | |
a5f75d66 | 216 | #else |
cceca5ed GS |
217 | sprintf(PL_patchlevel, "%5.3f", (double) PERL_REVISION + |
218 | ((double) PERL_VERSION / (double) 1000)); | |
a5f75d66 | 219 | #endif |
79072805 | 220 | |
ab821d7f | 221 | #if defined(LOCAL_PATCH_COUNT) |
3280af22 | 222 | PL_localpatches = local_patches; /* For possible -v */ |
ab821d7f | 223 | #endif |
224 | ||
4b556e6c | 225 | PerlIO_init(); /* Hook to IO system */ |
760ac839 | 226 | |
3280af22 NIS |
227 | PL_fdpid = newAV(); /* for remembering popen pids by fd */ |
228 | PL_modglobal = newHV(); /* pointers to per-interpreter module globals */ | |
8990e307 | 229 | |
11343788 | 230 | DEBUG( { |
3280af22 NIS |
231 | New(51,PL_debname,128,char); |
232 | New(52,PL_debdelim,128,char); | |
11343788 MB |
233 | } ) |
234 | ||
8990e307 | 235 | ENTER; |
79072805 LW |
236 | } |
237 | ||
238 | void | |
76e3520e | 239 | #ifdef PERL_OBJECT |
22c35a8c | 240 | perl_destruct(void) |
76e3520e | 241 | #else |
8ac85365 | 242 | perl_destruct(register PerlInterpreter *sv_interp) |
76e3520e | 243 | #endif |
79072805 | 244 | { |
11343788 | 245 | dTHR; |
748a9306 | 246 | int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
8990e307 | 247 | I32 last_sv_count; |
a0d0e21e | 248 | HV *hv; |
1f2bfc8a | 249 | #ifdef USE_THREADS |
33f46ff6 | 250 | Thread t; |
1f2bfc8a | 251 | #endif /* USE_THREADS */ |
8990e307 | 252 | |
76e3520e | 253 | #ifndef PERL_OBJECT |
3280af22 | 254 | if (!(PL_curinterp = sv_interp)) |
79072805 | 255 | return; |
76e3520e | 256 | #endif |
748a9306 | 257 | |
11343788 | 258 | #ifdef USE_THREADS |
0f15f207 | 259 | #ifndef FAKE_THREADS |
8023c3ce MB |
260 | /* Pass 1 on any remaining threads: detach joinables, join zombies */ |
261 | retry_cleanup: | |
533c011a | 262 | MUTEX_LOCK(&PL_threads_mutex); |
8b73bbec | 263 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 | 264 | "perl_destruct: waiting for %d threads...\n", |
533c011a | 265 | PL_nthreads - 1)); |
33f46ff6 | 266 | for (t = thr->next; t != thr; t = t->next) { |
605e5515 MB |
267 | MUTEX_LOCK(&t->mutex); |
268 | switch (ThrSTATE(t)) { | |
269 | AV *av; | |
c7848ba1 | 270 | case THRf_ZOMBIE: |
8b73bbec | 271 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 | 272 | "perl_destruct: joining zombie %p\n", t)); |
605e5515 MB |
273 | ThrSETSTATE(t, THRf_DEAD); |
274 | MUTEX_UNLOCK(&t->mutex); | |
533c011a | 275 | PL_nthreads--; |
8023c3ce MB |
276 | /* |
277 | * The SvREFCNT_dec below may take a long time (e.g. av | |
278 | * may contain an object scalar whose destructor gets | |
279 | * called) so we have to unlock threads_mutex and start | |
280 | * all over again. | |
281 | */ | |
533c011a | 282 | MUTEX_UNLOCK(&PL_threads_mutex); |
ea0efc06 | 283 | JOIN(t, &av); |
605e5515 | 284 | SvREFCNT_dec((SV*)av); |
8b73bbec | 285 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 | 286 | "perl_destruct: joined zombie %p OK\n", t)); |
8023c3ce | 287 | goto retry_cleanup; |
c7848ba1 | 288 | case THRf_R_JOINABLE: |
8b73bbec | 289 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 MB |
290 | "perl_destruct: detaching thread %p\n", t)); |
291 | ThrSETSTATE(t, THRf_R_DETACHED); | |
292 | /* | |
293 | * We unlock threads_mutex and t->mutex in the opposite order | |
294 | * from which we locked them just so that DETACH won't | |
295 | * deadlock if it panics. It's only a breach of good style | |
296 | * not a bug since they are unlocks not locks. | |
297 | */ | |
533c011a | 298 | MUTEX_UNLOCK(&PL_threads_mutex); |
c7848ba1 MB |
299 | DETACH(t); |
300 | MUTEX_UNLOCK(&t->mutex); | |
8023c3ce | 301 | goto retry_cleanup; |
c7848ba1 | 302 | default: |
8b73bbec | 303 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 MB |
304 | "perl_destruct: ignoring %p (state %u)\n", |
305 | t, ThrSTATE(t))); | |
306 | MUTEX_UNLOCK(&t->mutex); | |
c7848ba1 | 307 | /* fall through and out */ |
33f46ff6 MB |
308 | } |
309 | } | |
8023c3ce MB |
310 | /* We leave the above "Pass 1" loop with threads_mutex still locked */ |
311 | ||
312 | /* Pass 2 on remaining threads: wait for the thread count to drop to one */ | |
533c011a | 313 | while (PL_nthreads > 1) |
11343788 | 314 | { |
8b73bbec | 315 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 | 316 | "perl_destruct: final wait for %d threads\n", |
533c011a NIS |
317 | PL_nthreads - 1)); |
318 | COND_WAIT(&PL_nthreads_cond, &PL_threads_mutex); | |
11343788 MB |
319 | } |
320 | /* At this point, we're the last thread */ | |
533c011a | 321 | MUTEX_UNLOCK(&PL_threads_mutex); |
8b73bbec | 322 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "perl_destruct: armageddon has arrived\n")); |
533c011a NIS |
323 | MUTEX_DESTROY(&PL_threads_mutex); |
324 | COND_DESTROY(&PL_nthreads_cond); | |
0f15f207 | 325 | #endif /* !defined(FAKE_THREADS) */ |
11343788 MB |
326 | #endif /* USE_THREADS */ |
327 | ||
3280af22 | 328 | destruct_level = PL_perl_destruct_level; |
4633a7c4 LW |
329 | #ifdef DEBUGGING |
330 | { | |
331 | char *s; | |
76e3520e | 332 | if (s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL")) { |
5f05dabc | 333 | int i = atoi(s); |
334 | if (destruct_level < i) | |
335 | destruct_level = i; | |
336 | } | |
4633a7c4 LW |
337 | } |
338 | #endif | |
339 | ||
8990e307 | 340 | LEAVE; |
a0d0e21e LW |
341 | FREETMPS; |
342 | ||
cb68f92d | 343 | #ifdef MULTIPLICITY |
8f872242 | 344 | --PL_ninterps; |
cb68f92d GS |
345 | #endif |
346 | ||
ff0cee69 | 347 | /* We must account for everything. */ |
348 | ||
349 | /* Destroy the main CV and syntax tree */ | |
3280af22 NIS |
350 | if (PL_main_root) { |
351 | PL_curpad = AvARRAY(PL_comppad); | |
352 | op_free(PL_main_root); | |
353 | PL_main_root = Nullop; | |
a0d0e21e | 354 | } |
3280af22 NIS |
355 | PL_curcop = &PL_compiling; |
356 | PL_main_start = Nullop; | |
357 | SvREFCNT_dec(PL_main_cv); | |
358 | PL_main_cv = Nullcv; | |
24d3c518 | 359 | PL_dirty = TRUE; |
ff0cee69 | 360 | |
3280af22 | 361 | if (PL_sv_objcount) { |
a0d0e21e LW |
362 | /* |
363 | * Try to destruct global references. We do this first so that the | |
364 | * destructors and destructees still exist. Some sv's might remain. | |
365 | * Non-referenced objects are on their own. | |
366 | */ | |
a0d0e21e | 367 | sv_clean_objs(); |
8990e307 LW |
368 | } |
369 | ||
5cd24f17 | 370 | /* unhook hooks which will soon be, or use, destroyed data */ |
3280af22 NIS |
371 | SvREFCNT_dec(PL_warnhook); |
372 | PL_warnhook = Nullsv; | |
373 | SvREFCNT_dec(PL_diehook); | |
374 | PL_diehook = Nullsv; | |
375 | SvREFCNT_dec(PL_parsehook); | |
376 | PL_parsehook = Nullsv; | |
5cd24f17 | 377 | |
4b556e6c | 378 | /* call exit list functions */ |
3280af22 NIS |
379 | while (PL_exitlistlen-- > 0) |
380 | PL_exitlist[PL_exitlistlen].fn(PERL_OBJECT_THIS_ PL_exitlist[PL_exitlistlen].ptr); | |
4b556e6c | 381 | |
3280af22 | 382 | Safefree(PL_exitlist); |
4b556e6c | 383 | |
a0d0e21e | 384 | if (destruct_level == 0){ |
8990e307 | 385 | |
a0d0e21e LW |
386 | DEBUG_P(debprofdump()); |
387 | ||
388 | /* The exit() function will do everything that needs doing. */ | |
389 | return; | |
390 | } | |
5dd60ef7 | 391 | |
5f05dabc | 392 | /* loosen bonds of global variables */ |
393 | ||
3280af22 NIS |
394 | if(PL_rsfp) { |
395 | (void)PerlIO_close(PL_rsfp); | |
396 | PL_rsfp = Nullfp; | |
8ebc5c01 | 397 | } |
398 | ||
399 | /* Filters for program text */ | |
3280af22 NIS |
400 | SvREFCNT_dec(PL_rsfp_filters); |
401 | PL_rsfp_filters = Nullav; | |
8ebc5c01 | 402 | |
403 | /* switches */ | |
3280af22 NIS |
404 | PL_preprocess = FALSE; |
405 | PL_minus_n = FALSE; | |
406 | PL_minus_p = FALSE; | |
407 | PL_minus_l = FALSE; | |
408 | PL_minus_a = FALSE; | |
409 | PL_minus_F = FALSE; | |
410 | PL_doswitches = FALSE; | |
599cee73 | 411 | PL_dowarn = G_WARN_OFF; |
3280af22 NIS |
412 | PL_doextract = FALSE; |
413 | PL_sawampersand = FALSE; /* must save all match strings */ | |
414 | PL_sawstudy = FALSE; /* do fbm_instr on all strings */ | |
415 | PL_sawvec = FALSE; | |
416 | PL_unsafe = FALSE; | |
417 | ||
418 | Safefree(PL_inplace); | |
419 | PL_inplace = Nullch; | |
420 | ||
421 | if (PL_e_script) { | |
422 | SvREFCNT_dec(PL_e_script); | |
423 | PL_e_script = Nullsv; | |
8ebc5c01 | 424 | } |
425 | ||
426 | /* magical thingies */ | |
427 | ||
3280af22 NIS |
428 | Safefree(PL_ofs); /* $, */ |
429 | PL_ofs = Nullch; | |
5f05dabc | 430 | |
3280af22 NIS |
431 | Safefree(PL_ors); /* $\ */ |
432 | PL_ors = Nullch; | |
8ebc5c01 | 433 | |
3280af22 NIS |
434 | SvREFCNT_dec(PL_rs); /* $/ */ |
435 | PL_rs = Nullsv; | |
dc92893f | 436 | |
3280af22 NIS |
437 | SvREFCNT_dec(PL_nrs); /* $/ helper */ |
438 | PL_nrs = Nullsv; | |
5f05dabc | 439 | |
3280af22 | 440 | PL_multiline = 0; /* $* */ |
5f05dabc | 441 | |
3280af22 NIS |
442 | SvREFCNT_dec(PL_statname); |
443 | PL_statname = Nullsv; | |
444 | PL_statgv = Nullgv; | |
5f05dabc | 445 | |
8ebc5c01 | 446 | /* defgv, aka *_ should be taken care of elsewhere */ |
447 | ||
8ebc5c01 | 448 | /* clean up after study() */ |
3280af22 NIS |
449 | SvREFCNT_dec(PL_lastscream); |
450 | PL_lastscream = Nullsv; | |
451 | Safefree(PL_screamfirst); | |
452 | PL_screamfirst = 0; | |
453 | Safefree(PL_screamnext); | |
454 | PL_screamnext = 0; | |
8ebc5c01 | 455 | |
456 | /* startup and shutdown function lists */ | |
3280af22 NIS |
457 | SvREFCNT_dec(PL_beginav); |
458 | SvREFCNT_dec(PL_endav); | |
459 | SvREFCNT_dec(PL_initav); | |
460 | PL_beginav = Nullav; | |
461 | PL_endav = Nullav; | |
462 | PL_initav = Nullav; | |
5618dfe8 | 463 | |
8ebc5c01 | 464 | /* shortcuts just get cleared */ |
3280af22 NIS |
465 | PL_envgv = Nullgv; |
466 | PL_siggv = Nullgv; | |
467 | PL_incgv = Nullgv; | |
468 | PL_hintgv = Nullgv; | |
469 | PL_errgv = Nullgv; | |
470 | PL_argvgv = Nullgv; | |
471 | PL_argvoutgv = Nullgv; | |
472 | PL_stdingv = Nullgv; | |
473 | PL_last_in_gv = Nullgv; | |
474 | PL_replgv = Nullgv; | |
8ebc5c01 | 475 | |
476 | /* reset so print() ends up where we expect */ | |
477 | setdefout(Nullgv); | |
478 | ||
a0d0e21e | 479 | /* Prepare to destruct main symbol table. */ |
5f05dabc | 480 | |
3280af22 NIS |
481 | hv = PL_defstash; |
482 | PL_defstash = 0; | |
a0d0e21e LW |
483 | SvREFCNT_dec(hv); |
484 | ||
485 | FREETMPS; | |
486 | if (destruct_level >= 2) { | |
3280af22 | 487 | if (PL_scopestack_ix != 0) |
ff0cee69 | 488 | warn("Unbalanced scopes: %ld more ENTERs than LEAVEs\n", |
3280af22 NIS |
489 | (long)PL_scopestack_ix); |
490 | if (PL_savestack_ix != 0) | |
ff0cee69 | 491 | warn("Unbalanced saves: %ld more saves than restores\n", |
3280af22 NIS |
492 | (long)PL_savestack_ix); |
493 | if (PL_tmps_floor != -1) | |
ff0cee69 | 494 | warn("Unbalanced tmps: %ld more allocs than frees\n", |
3280af22 | 495 | (long)PL_tmps_floor + 1); |
a0d0e21e | 496 | if (cxstack_ix != -1) |
ff0cee69 | 497 | warn("Unbalanced context: %ld more PUSHes than POPs\n", |
498 | (long)cxstack_ix + 1); | |
a0d0e21e | 499 | } |
8990e307 LW |
500 | |
501 | /* Now absolutely destruct everything, somehow or other, loops or no. */ | |
8990e307 | 502 | last_sv_count = 0; |
3280af22 NIS |
503 | SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
504 | while (PL_sv_count != 0 && PL_sv_count != last_sv_count) { | |
505 | last_sv_count = PL_sv_count; | |
8990e307 LW |
506 | sv_clean_all(); |
507 | } | |
3280af22 NIS |
508 | SvFLAGS(PL_strtab) &= ~SVTYPEMASK; |
509 | SvFLAGS(PL_strtab) |= SVt_PVHV; | |
6e72f9df | 510 | |
511 | /* Destruct the global string table. */ | |
512 | { | |
513 | /* Yell and reset the HeVAL() slots that are still holding refcounts, | |
514 | * so that sv_free() won't fail on them. | |
515 | */ | |
516 | I32 riter; | |
517 | I32 max; | |
518 | HE *hent; | |
519 | HE **array; | |
520 | ||
521 | riter = 0; | |
3280af22 NIS |
522 | max = HvMAX(PL_strtab); |
523 | array = HvARRAY(PL_strtab); | |
6e72f9df | 524 | hent = array[0]; |
525 | for (;;) { | |
526 | if (hent) { | |
527 | warn("Unbalanced string table refcount: (%d) for \"%s\"", | |
528 | HeVAL(hent) - Nullsv, HeKEY(hent)); | |
529 | HeVAL(hent) = Nullsv; | |
530 | hent = HeNEXT(hent); | |
531 | } | |
532 | if (!hent) { | |
533 | if (++riter > max) | |
534 | break; | |
535 | hent = array[riter]; | |
536 | } | |
537 | } | |
538 | } | |
3280af22 | 539 | SvREFCNT_dec(PL_strtab); |
6e72f9df | 540 | |
3280af22 NIS |
541 | if (PL_sv_count != 0) |
542 | warn("Scalars leaked: %ld\n", (long)PL_sv_count); | |
6e72f9df | 543 | |
4633a7c4 | 544 | sv_free_arenas(); |
44a8e56a | 545 | |
546 | /* No SVs have survived, need to clean out */ | |
3280af22 NIS |
547 | PL_linestr = NULL; |
548 | PL_pidstatus = Nullhv; | |
549 | Safefree(PL_origfilename); | |
550 | Safefree(PL_archpat_auto); | |
551 | Safefree(PL_reg_start_tmp); | |
5c5e4c24 IZ |
552 | if (PL_reg_curpm) |
553 | Safefree(PL_reg_curpm); | |
3280af22 NIS |
554 | Safefree(HeKEY_hek(&PL_hv_fetch_ent_mh)); |
555 | Safefree(PL_op_mask); | |
6e72f9df | 556 | nuke_stacks(); |
3280af22 | 557 | PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */ |
a0d0e21e LW |
558 | |
559 | DEBUG_P(debprofdump()); | |
11343788 | 560 | #ifdef USE_THREADS |
5f08fbcd | 561 | MUTEX_DESTROY(&PL_strtab_mutex); |
533c011a NIS |
562 | MUTEX_DESTROY(&PL_sv_mutex); |
563 | MUTEX_DESTROY(&PL_eval_mutex); | |
5ff3f7a4 | 564 | MUTEX_DESTROY(&PL_cred_mutex); |
533c011a | 565 | COND_DESTROY(&PL_eval_cond); |
fc36a67e | 566 | |
8023c3ce | 567 | /* As the penultimate thing, free the non-arena SV for thrsv */ |
533c011a NIS |
568 | Safefree(SvPVX(PL_thrsv)); |
569 | Safefree(SvANY(PL_thrsv)); | |
570 | Safefree(PL_thrsv); | |
571 | PL_thrsv = Nullsv; | |
8023c3ce MB |
572 | #endif /* USE_THREADS */ |
573 | ||
fc36a67e | 574 | /* As the absolutely last thing, free the non-arena SV for mess() */ |
575 | ||
3280af22 | 576 | if (PL_mess_sv) { |
9c63abab GS |
577 | /* it could have accumulated taint magic */ |
578 | if (SvTYPE(PL_mess_sv) >= SVt_PVMG) { | |
579 | MAGIC* mg; | |
580 | MAGIC* moremagic; | |
581 | for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) { | |
582 | moremagic = mg->mg_moremagic; | |
583 | if (mg->mg_ptr && mg->mg_type != 'g' && mg->mg_len >= 0) | |
584 | Safefree(mg->mg_ptr); | |
585 | Safefree(mg); | |
586 | } | |
587 | } | |
fc36a67e | 588 | /* we know that type >= SVt_PV */ |
3280af22 NIS |
589 | SvOOK_off(PL_mess_sv); |
590 | Safefree(SvPVX(PL_mess_sv)); | |
591 | Safefree(SvANY(PL_mess_sv)); | |
592 | Safefree(PL_mess_sv); | |
593 | PL_mess_sv = Nullsv; | |
fc36a67e | 594 | } |
79072805 LW |
595 | } |
596 | ||
597 | void | |
76e3520e | 598 | #ifdef PERL_OBJECT |
22c35a8c | 599 | perl_free(void) |
76e3520e | 600 | #else |
8ac85365 | 601 | perl_free(PerlInterpreter *sv_interp) |
76e3520e | 602 | #endif |
79072805 | 603 | { |
76e3520e | 604 | #ifdef PERL_OBJECT |
565764a8 | 605 | Safefree(this); |
76e3520e | 606 | #else |
3280af22 | 607 | if (!(PL_curinterp = sv_interp)) |
79072805 LW |
608 | return; |
609 | Safefree(sv_interp); | |
76e3520e | 610 | #endif |
79072805 LW |
611 | } |
612 | ||
4b556e6c | 613 | void |
873ef191 | 614 | #ifdef PERL_OBJECT |
22c35a8c | 615 | perl_atexit(void (*fn) (CPerlObj*,void *), void *ptr) |
873ef191 | 616 | #else |
4b556e6c | 617 | perl_atexit(void (*fn) (void *), void *ptr) |
873ef191 | 618 | #endif |
4b556e6c | 619 | { |
3280af22 NIS |
620 | Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry); |
621 | PL_exitlist[PL_exitlistlen].fn = fn; | |
622 | PL_exitlist[PL_exitlistlen].ptr = ptr; | |
623 | ++PL_exitlistlen; | |
4b556e6c JD |
624 | } |
625 | ||
79072805 | 626 | int |
76e3520e | 627 | #ifdef PERL_OBJECT |
22c35a8c | 628 | perl_parse(void (*xsinit) (CPerlObj*), int argc, char **argv, char **env) |
76e3520e | 629 | #else |
8ac85365 | 630 | perl_parse(PerlInterpreter *sv_interp, void (*xsinit) (void), int argc, char **argv, char **env) |
76e3520e | 631 | #endif |
8d063cd8 | 632 | { |
11343788 | 633 | dTHR; |
6224f72b GS |
634 | register SV *sv; |
635 | register char *s; | |
636 | char *scriptname = NULL; | |
637 | VOL bool dosearch = FALSE; | |
638 | char *validarg = ""; | |
639 | I32 oldscope; | |
640 | AV* comppadlist; | |
641 | dJMPENV; | |
642 | int ret; | |
643 | int fdscript = -1; | |
8d063cd8 | 644 | |
a687059c LW |
645 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
646 | #ifdef IAMSUID | |
647 | #undef IAMSUID | |
463ee0b2 | 648 | croak("suidperl is no longer needed since the kernel can now execute\n\ |
a687059c LW |
649 | setuid perl scripts securely.\n"); |
650 | #endif | |
651 | #endif | |
652 | ||
76e3520e | 653 | #ifndef PERL_OBJECT |
3280af22 | 654 | if (!(PL_curinterp = sv_interp)) |
79072805 | 655 | return 255; |
76e3520e | 656 | #endif |
79072805 | 657 | |
6e72f9df | 658 | #if defined(NeXT) && defined(__DYNAMIC__) |
659 | _dyld_lookup_and_bind | |
660 | ("__environ", (unsigned long *) &environ_pointer, NULL); | |
661 | #endif /* environ */ | |
662 | ||
3280af22 NIS |
663 | PL_origargv = argv; |
664 | PL_origargc = argc; | |
a0d0e21e | 665 | #ifndef VMS /* VMS doesn't have environ array */ |
3280af22 | 666 | PL_origenviron = environ; |
a0d0e21e LW |
667 | #endif |
668 | ||
3280af22 | 669 | if (PL_do_undump) { |
a0d0e21e LW |
670 | |
671 | /* Come here if running an undumped a.out. */ | |
672 | ||
3280af22 NIS |
673 | PL_origfilename = savepv(argv[0]); |
674 | PL_do_undump = FALSE; | |
a0d0e21e | 675 | cxstack_ix = -1; /* start label stack again */ |
748a9306 | 676 | init_ids(); |
a0d0e21e LW |
677 | init_postdump_symbols(argc,argv,env); |
678 | return 0; | |
679 | } | |
680 | ||
3280af22 NIS |
681 | if (PL_main_root) { |
682 | PL_curpad = AvARRAY(PL_comppad); | |
683 | op_free(PL_main_root); | |
684 | PL_main_root = Nullop; | |
ff0cee69 | 685 | } |
3280af22 NIS |
686 | PL_main_start = Nullop; |
687 | SvREFCNT_dec(PL_main_cv); | |
688 | PL_main_cv = Nullcv; | |
79072805 | 689 | |
3280af22 NIS |
690 | time(&PL_basetime); |
691 | oldscope = PL_scopestack_ix; | |
599cee73 | 692 | PL_dowarn = G_WARN_OFF; |
f86702cc | 693 | |
6224f72b GS |
694 | JMPENV_PUSH(ret); |
695 | switch (ret) { | |
696 | case 1: | |
697 | STATUS_ALL_FAILURE; | |
698 | /* FALL THROUGH */ | |
699 | case 2: | |
700 | /* my_exit() was called */ | |
3280af22 | 701 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
702 | LEAVE; |
703 | FREETMPS; | |
3280af22 NIS |
704 | PL_curstash = PL_defstash; |
705 | if (PL_endav) | |
706 | call_list(oldscope, PL_endav); | |
6224f72b GS |
707 | JMPENV_POP; |
708 | return STATUS_NATIVE_EXPORT; | |
709 | case 3: | |
710 | JMPENV_POP; | |
711 | PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); | |
712 | return 1; | |
713 | } | |
79072805 | 714 | |
3280af22 | 715 | sv_setpvn(PL_linestr,"",0); |
6224f72b GS |
716 | sv = newSVpv("",0); /* first used for -I flags */ |
717 | SAVEFREESV(sv); | |
718 | init_main_stash(); | |
54310121 | 719 | |
6224f72b GS |
720 | for (argc--,argv++; argc > 0; argc--,argv++) { |
721 | if (argv[0][0] != '-' || !argv[0][1]) | |
722 | break; | |
723 | #ifdef DOSUID | |
724 | if (*validarg) | |
725 | validarg = " PHOOEY "; | |
726 | else | |
727 | validarg = argv[0]; | |
13281fa4 | 728 | #endif |
6224f72b GS |
729 | s = argv[0]+1; |
730 | reswitch: | |
731 | switch (*s) { | |
732 | case ' ': | |
733 | case '0': | |
734 | case 'F': | |
735 | case 'a': | |
736 | case 'c': | |
737 | case 'd': | |
738 | case 'D': | |
739 | case 'h': | |
740 | case 'i': | |
741 | case 'l': | |
742 | case 'M': | |
743 | case 'm': | |
744 | case 'n': | |
745 | case 'p': | |
746 | case 's': | |
747 | case 'u': | |
748 | case 'U': | |
749 | case 'v': | |
599cee73 PM |
750 | case 'W': |
751 | case 'X': | |
6224f72b GS |
752 | case 'w': |
753 | if (s = moreswitches(s)) | |
754 | goto reswitch; | |
755 | break; | |
33b78306 | 756 | |
6224f72b | 757 | case 'T': |
3280af22 | 758 | PL_tainting = TRUE; |
6224f72b GS |
759 | s++; |
760 | goto reswitch; | |
f86702cc | 761 | |
6224f72b | 762 | case 'e': |
3280af22 | 763 | if (PL_euid != PL_uid || PL_egid != PL_gid) |
6224f72b | 764 | croak("No -e allowed in setuid scripts"); |
3280af22 NIS |
765 | if (!PL_e_script) { |
766 | PL_e_script = newSVpv("",0); | |
6224f72b GS |
767 | filter_add(read_e_script, NULL); |
768 | } | |
769 | if (*++s) | |
3280af22 | 770 | sv_catpv(PL_e_script, s); |
6224f72b | 771 | else if (argv[1]) { |
3280af22 | 772 | sv_catpv(PL_e_script, argv[1]); |
6224f72b GS |
773 | argc--,argv++; |
774 | } | |
775 | else | |
776 | croak("No code specified for -e"); | |
3280af22 | 777 | sv_catpv(PL_e_script, "\n"); |
6224f72b | 778 | break; |
afe37c7d | 779 | |
6224f72b GS |
780 | case 'I': /* -I handled both here and in moreswitches() */ |
781 | forbid_setid("-I"); | |
782 | if (!*++s && (s=argv[1]) != Nullch) { | |
783 | argc--,argv++; | |
784 | } | |
785 | while (s && isSPACE(*s)) | |
786 | ++s; | |
787 | if (s && *s) { | |
788 | char *e, *p; | |
789 | for (e = s; *e && !isSPACE(*e); e++) ; | |
790 | p = savepvn(s, e-s); | |
791 | incpush(p, TRUE); | |
792 | sv_catpv(sv,"-I"); | |
793 | sv_catpv(sv,p); | |
794 | sv_catpv(sv," "); | |
795 | Safefree(p); | |
796 | } /* XXX else croak? */ | |
797 | break; | |
798 | case 'P': | |
799 | forbid_setid("-P"); | |
3280af22 | 800 | PL_preprocess = TRUE; |
6224f72b GS |
801 | s++; |
802 | goto reswitch; | |
803 | case 'S': | |
804 | forbid_setid("-S"); | |
805 | dosearch = TRUE; | |
806 | s++; | |
807 | goto reswitch; | |
808 | case 'V': | |
3280af22 NIS |
809 | if (!PL_preambleav) |
810 | PL_preambleav = newAV(); | |
811 | av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0)); | |
6224f72b | 812 | if (*++s != ':') { |
3280af22 | 813 | PL_Sv = newSVpv("print myconfig();",0); |
6224f72b | 814 | #ifdef VMS |
6b88bc9c | 815 | sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\","); |
6224f72b | 816 | #else |
3280af22 | 817 | sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\","); |
6224f72b | 818 | #endif |
22c35a8c | 819 | #if defined(DEBUGGING) || defined(MULTIPLICITY) |
3280af22 | 820 | sv_catpv(PL_Sv,"\" Compile-time options:"); |
6224f72b | 821 | # ifdef DEBUGGING |
3280af22 | 822 | sv_catpv(PL_Sv," DEBUGGING"); |
6224f72b | 823 | # endif |
6224f72b | 824 | # ifdef MULTIPLICITY |
8f872242 | 825 | sv_catpv(PL_Sv," MULTIPLICITY"); |
6224f72b | 826 | # endif |
3280af22 | 827 | sv_catpv(PL_Sv,"\\n\","); |
6224f72b GS |
828 | #endif |
829 | #if defined(LOCAL_PATCH_COUNT) | |
830 | if (LOCAL_PATCH_COUNT > 0) { | |
831 | int i; | |
3280af22 | 832 | sv_catpv(PL_Sv,"\" Locally applied patches:\\n\","); |
6224f72b | 833 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { |
3280af22 | 834 | if (PL_localpatches[i]) |
642653c7 | 835 | sv_catpvf(PL_Sv,"q\" \t%s\n\",",PL_localpatches[i]); |
6224f72b GS |
836 | } |
837 | } | |
838 | #endif | |
3280af22 | 839 | sv_catpvf(PL_Sv,"\" Built under %s\\n\"",OSNAME); |
6224f72b GS |
840 | #ifdef __DATE__ |
841 | # ifdef __TIME__ | |
3280af22 | 842 | sv_catpvf(PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__); |
6224f72b | 843 | # else |
6b88bc9c | 844 | sv_catpvf(PL_Sv,",\" Compiled on %s\\n\"",__DATE__); |
6224f72b GS |
845 | # endif |
846 | #endif | |
3280af22 | 847 | sv_catpv(PL_Sv, "; \ |
6224f72b GS |
848 | $\"=\"\\n \"; \ |
849 | @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; \ | |
850 | print \" \\%ENV:\\n @env\\n\" if @env; \ | |
851 | print \" \\@INC:\\n @INC\\n\";"); | |
852 | } | |
853 | else { | |
3280af22 NIS |
854 | PL_Sv = newSVpv("config_vars(qw(",0); |
855 | sv_catpv(PL_Sv, ++s); | |
856 | sv_catpv(PL_Sv, "))"); | |
6224f72b GS |
857 | s += strlen(s); |
858 | } | |
3280af22 | 859 | av_push(PL_preambleav, PL_Sv); |
6224f72b GS |
860 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
861 | goto reswitch; | |
862 | case 'x': | |
3280af22 | 863 | PL_doextract = TRUE; |
6224f72b GS |
864 | s++; |
865 | if (*s) | |
3280af22 | 866 | PL_cddir = savepv(s); |
6224f72b GS |
867 | break; |
868 | case 0: | |
869 | break; | |
870 | case '-': | |
871 | if (!*++s || isSPACE(*s)) { | |
872 | argc--,argv++; | |
873 | goto switch_end; | |
874 | } | |
875 | /* catch use of gnu style long options */ | |
876 | if (strEQ(s, "version")) { | |
877 | s = "v"; | |
878 | goto reswitch; | |
879 | } | |
880 | if (strEQ(s, "help")) { | |
881 | s = "h"; | |
882 | goto reswitch; | |
883 | } | |
884 | s--; | |
885 | /* FALL THROUGH */ | |
886 | default: | |
887 | croak("Unrecognized switch: -%s (-h will show valid options)",s); | |
8d063cd8 LW |
888 | } |
889 | } | |
6224f72b | 890 | switch_end: |
54310121 | 891 | |
3280af22 | 892 | if (!PL_tainting && (s = PerlEnv_getenv("PERL5OPT"))) { |
74288ac8 GS |
893 | while (isSPACE(*s)) |
894 | s++; | |
895 | if (*s == '-' && *(s+1) == 'T') | |
896 | PL_tainting = TRUE; | |
897 | else { | |
898 | while (s && *s) { | |
899 | while (isSPACE(*s)) | |
900 | s++; | |
901 | if (*s == '-') { | |
902 | s++; | |
903 | if (isSPACE(*s)) | |
904 | continue; | |
905 | } | |
906 | if (!*s) | |
907 | break; | |
908 | if (!strchr("DIMUdmw", *s)) | |
909 | croak("Illegal switch in PERL5OPT: -%c", *s); | |
910 | s = moreswitches(s); | |
6224f72b | 911 | } |
6224f72b GS |
912 | } |
913 | } | |
a0d0e21e | 914 | |
6224f72b GS |
915 | if (!scriptname) |
916 | scriptname = argv[0]; | |
3280af22 | 917 | if (PL_e_script) { |
6224f72b GS |
918 | argc++,argv--; |
919 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ | |
920 | } | |
921 | else if (scriptname == Nullch) { | |
922 | #ifdef MSDOS | |
923 | if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) ) | |
924 | moreswitches("h"); | |
925 | #endif | |
926 | scriptname = "-"; | |
927 | } | |
928 | ||
929 | init_perllib(); | |
930 | ||
931 | open_script(scriptname,dosearch,sv,&fdscript); | |
932 | ||
933 | validate_suid(validarg, scriptname,fdscript); | |
934 | ||
3280af22 | 935 | if (PL_doextract) |
6224f72b GS |
936 | find_beginning(); |
937 | ||
3280af22 NIS |
938 | PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0); |
939 | sv_upgrade((SV *)PL_compcv, SVt_PVCV); | |
940 | CvUNIQUE_on(PL_compcv); | |
941 | ||
942 | PL_comppad = newAV(); | |
943 | av_push(PL_comppad, Nullsv); | |
944 | PL_curpad = AvARRAY(PL_comppad); | |
945 | PL_comppad_name = newAV(); | |
946 | PL_comppad_name_fill = 0; | |
947 | PL_min_intro_pending = 0; | |
948 | PL_padix = 0; | |
6224f72b | 949 | #ifdef USE_THREADS |
533c011a NIS |
950 | av_store(PL_comppad_name, 0, newSVpv("@_", 2)); |
951 | PL_curpad[0] = (SV*)newAV(); | |
952 | SvPADMY_on(PL_curpad[0]); /* XXX Needed? */ | |
953 | CvOWNER(PL_compcv) = 0; | |
954 | New(666, CvMUTEXP(PL_compcv), 1, perl_mutex); | |
955 | MUTEX_INIT(CvMUTEXP(PL_compcv)); | |
6224f72b GS |
956 | #endif /* USE_THREADS */ |
957 | ||
958 | comppadlist = newAV(); | |
959 | AvREAL_off(comppadlist); | |
3280af22 NIS |
960 | av_store(comppadlist, 0, (SV*)PL_comppad_name); |
961 | av_store(comppadlist, 1, (SV*)PL_comppad); | |
962 | CvPADLIST(PL_compcv) = comppadlist; | |
6224f72b GS |
963 | |
964 | boot_core_UNIVERSAL(); | |
965 | ||
966 | if (xsinit) | |
967 | (*xsinit)(PERL_OBJECT_THIS); /* in case linked C routines want magical variables */ | |
968 | #if defined(VMS) || defined(WIN32) || defined(DJGPP) | |
969 | init_os_extras(); | |
970 | #endif | |
971 | ||
972 | init_predump_symbols(); | |
973 | /* init_postdump_symbols not currently designed to be called */ | |
974 | /* more than once (ENV isn't cleared first, for example) */ | |
975 | /* But running with -u leaves %ENV & @ARGV undefined! XXX */ | |
3280af22 | 976 | if (!PL_do_undump) |
6224f72b GS |
977 | init_postdump_symbols(argc,argv,env); |
978 | ||
979 | init_lexer(); | |
980 | ||
981 | /* now parse the script */ | |
982 | ||
983 | SETERRNO(0,SS$_NORMAL); | |
3280af22 NIS |
984 | PL_error_count = 0; |
985 | if (yyparse() || PL_error_count) { | |
986 | if (PL_minus_c) | |
987 | croak("%s had compilation errors.\n", PL_origfilename); | |
6224f72b GS |
988 | else { |
989 | croak("Execution of %s aborted due to compilation errors.\n", | |
3280af22 | 990 | PL_origfilename); |
6224f72b GS |
991 | } |
992 | } | |
3280af22 NIS |
993 | PL_curcop->cop_line = 0; |
994 | PL_curstash = PL_defstash; | |
995 | PL_preprocess = FALSE; | |
996 | if (PL_e_script) { | |
997 | SvREFCNT_dec(PL_e_script); | |
998 | PL_e_script = Nullsv; | |
6224f72b GS |
999 | } |
1000 | ||
1001 | /* now that script is parsed, we can modify record separator */ | |
3280af22 NIS |
1002 | SvREFCNT_dec(PL_rs); |
1003 | PL_rs = SvREFCNT_inc(PL_nrs); | |
1004 | sv_setsv(perl_get_sv("/", TRUE), PL_rs); | |
1005 | if (PL_do_undump) | |
6224f72b GS |
1006 | my_unexec(); |
1007 | ||
599cee73 | 1008 | if (ckWARN(WARN_ONCE)) |
3280af22 | 1009 | gv_check(PL_defstash); |
6224f72b GS |
1010 | |
1011 | LEAVE; | |
1012 | FREETMPS; | |
1013 | ||
1014 | #ifdef MYMALLOC | |
1015 | if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) | |
1016 | dump_mstats("after compilation:"); | |
1017 | #endif | |
1018 | ||
1019 | ENTER; | |
3280af22 | 1020 | PL_restartop = 0; |
6224f72b GS |
1021 | JMPENV_POP; |
1022 | return 0; | |
1023 | } | |
1024 | ||
1025 | int | |
1026 | #ifdef PERL_OBJECT | |
22c35a8c | 1027 | perl_run(void) |
6224f72b GS |
1028 | #else |
1029 | perl_run(PerlInterpreter *sv_interp) | |
1030 | #endif | |
1031 | { | |
de616352 | 1032 | dTHR; |
6224f72b GS |
1033 | I32 oldscope; |
1034 | dJMPENV; | |
1035 | int ret; | |
1036 | ||
1037 | #ifndef PERL_OBJECT | |
3280af22 | 1038 | if (!(PL_curinterp = sv_interp)) |
6224f72b GS |
1039 | return 255; |
1040 | #endif | |
1041 | ||
3280af22 | 1042 | oldscope = PL_scopestack_ix; |
6224f72b GS |
1043 | |
1044 | JMPENV_PUSH(ret); | |
1045 | switch (ret) { | |
1046 | case 1: | |
1047 | cxstack_ix = -1; /* start context stack again */ | |
1048 | break; | |
1049 | case 2: | |
1050 | /* my_exit() was called */ | |
3280af22 | 1051 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
1052 | LEAVE; |
1053 | FREETMPS; | |
3280af22 NIS |
1054 | PL_curstash = PL_defstash; |
1055 | if (PL_endav) | |
1056 | call_list(oldscope, PL_endav); | |
6224f72b GS |
1057 | #ifdef MYMALLOC |
1058 | if (PerlEnv_getenv("PERL_DEBUG_MSTATS")) | |
1059 | dump_mstats("after execution: "); | |
1060 | #endif | |
1061 | JMPENV_POP; | |
1062 | return STATUS_NATIVE_EXPORT; | |
1063 | case 3: | |
3280af22 | 1064 | if (!PL_restartop) { |
6224f72b GS |
1065 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
1066 | FREETMPS; | |
1067 | JMPENV_POP; | |
1068 | return 1; | |
1069 | } | |
3280af22 | 1070 | POPSTACK_TO(PL_mainstack); |
6224f72b GS |
1071 | break; |
1072 | } | |
1073 | ||
1074 | DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n", | |
3280af22 | 1075 | PL_sawampersand ? "Enabling" : "Omitting")); |
6224f72b | 1076 | |
3280af22 | 1077 | if (!PL_restartop) { |
6224f72b GS |
1078 | DEBUG_x(dump_all()); |
1079 | DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); | |
8b73bbec | 1080 | DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%lx\n", |
6224f72b | 1081 | (unsigned long) thr)); |
6224f72b | 1082 | |
3280af22 NIS |
1083 | if (PL_minus_c) { |
1084 | PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", PL_origfilename); | |
6224f72b GS |
1085 | my_exit(0); |
1086 | } | |
3280af22 NIS |
1087 | if (PERLDB_SINGLE && PL_DBsingle) |
1088 | sv_setiv(PL_DBsingle, 1); | |
1089 | if (PL_initav) | |
1090 | call_list(oldscope, PL_initav); | |
6224f72b GS |
1091 | } |
1092 | ||
1093 | /* do it */ | |
1094 | ||
3280af22 | 1095 | if (PL_restartop) { |
533c011a | 1096 | PL_op = PL_restartop; |
3280af22 | 1097 | PL_restartop = 0; |
6224f72b GS |
1098 | CALLRUNOPS(); |
1099 | } | |
3280af22 NIS |
1100 | else if (PL_main_start) { |
1101 | CvDEPTH(PL_main_cv) = 1; | |
533c011a | 1102 | PL_op = PL_main_start; |
6224f72b GS |
1103 | CALLRUNOPS(); |
1104 | } | |
1105 | ||
1106 | my_exit(0); | |
1107 | /* NOTREACHED */ | |
1108 | return 0; | |
1109 | } | |
1110 | ||
1111 | SV* | |
08105a92 | 1112 | perl_get_sv(const char *name, I32 create) |
6224f72b GS |
1113 | { |
1114 | GV *gv; | |
1115 | #ifdef USE_THREADS | |
1116 | if (name[1] == '\0' && !isALPHA(name[0])) { | |
1117 | PADOFFSET tmp = find_threadsv(name); | |
1118 | if (tmp != NOT_IN_PAD) { | |
1119 | dTHR; | |
1120 | return THREADSV(tmp); | |
1121 | } | |
1122 | } | |
1123 | #endif /* USE_THREADS */ | |
1124 | gv = gv_fetchpv(name, create, SVt_PV); | |
1125 | if (gv) | |
1126 | return GvSV(gv); | |
1127 | return Nullsv; | |
1128 | } | |
1129 | ||
1130 | AV* | |
08105a92 | 1131 | perl_get_av(const char *name, I32 create) |
6224f72b GS |
1132 | { |
1133 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); | |
1134 | if (create) | |
1135 | return GvAVn(gv); | |
1136 | if (gv) | |
1137 | return GvAV(gv); | |
1138 | return Nullav; | |
1139 | } | |
1140 | ||
1141 | HV* | |
08105a92 | 1142 | perl_get_hv(const char *name, I32 create) |
6224f72b | 1143 | { |
a0d0e21e LW |
1144 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); |
1145 | if (create) | |
1146 | return GvHVn(gv); | |
1147 | if (gv) | |
1148 | return GvHV(gv); | |
1149 | return Nullhv; | |
1150 | } | |
1151 | ||
1152 | CV* | |
08105a92 | 1153 | perl_get_cv(const char *name, I32 create) |
a0d0e21e LW |
1154 | { |
1155 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); | |
b099ddc0 | 1156 | /* XXX unsafe for threads if eval_owner isn't held */ |
8ebc5c01 | 1157 | if (create && !GvCVu(gv)) |
774d564b | 1158 | return newSUB(start_subparse(FALSE, 0), |
a0d0e21e | 1159 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
4633a7c4 | 1160 | Nullop, |
a0d0e21e LW |
1161 | Nullop); |
1162 | if (gv) | |
8ebc5c01 | 1163 | return GvCVu(gv); |
a0d0e21e LW |
1164 | return Nullcv; |
1165 | } | |
1166 | ||
79072805 LW |
1167 | /* Be sure to refetch the stack pointer after calling these routines. */ |
1168 | ||
a0d0e21e | 1169 | I32 |
08105a92 | 1170 | perl_call_argv(const char *sub_name, I32 flags, register char **argv) |
8ac85365 NIS |
1171 | |
1172 | /* See G_* flags in cop.h */ | |
1173 | /* null terminated arg list */ | |
8990e307 | 1174 | { |
a0d0e21e | 1175 | dSP; |
8990e307 | 1176 | |
924508f0 | 1177 | PUSHMARK(SP); |
a0d0e21e | 1178 | if (argv) { |
8990e307 | 1179 | while (*argv) { |
a0d0e21e | 1180 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 LW |
1181 | argv++; |
1182 | } | |
a0d0e21e | 1183 | PUTBACK; |
8990e307 | 1184 | } |
22239a37 | 1185 | return perl_call_pv(sub_name, flags); |
8990e307 LW |
1186 | } |
1187 | ||
a0d0e21e | 1188 | I32 |
08105a92 | 1189 | perl_call_pv(const char *sub_name, I32 flags) |
8ac85365 NIS |
1190 | /* name of the subroutine */ |
1191 | /* See G_* flags in cop.h */ | |
a0d0e21e | 1192 | { |
22239a37 | 1193 | return perl_call_sv((SV*)perl_get_cv(sub_name, TRUE), flags); |
a0d0e21e LW |
1194 | } |
1195 | ||
1196 | I32 | |
08105a92 | 1197 | perl_call_method(const char *methname, I32 flags) |
8ac85365 NIS |
1198 | /* name of the subroutine */ |
1199 | /* See G_* flags in cop.h */ | |
a0d0e21e LW |
1200 | { |
1201 | dSP; | |
1202 | OP myop; | |
533c011a NIS |
1203 | if (!PL_op) |
1204 | PL_op = &myop; | |
a0d0e21e LW |
1205 | XPUSHs(sv_2mortal(newSVpv(methname,0))); |
1206 | PUTBACK; | |
11343788 | 1207 | pp_method(ARGS); |
533c011a NIS |
1208 | if(PL_op == &myop) |
1209 | PL_op = Nullop; | |
3280af22 | 1210 | return perl_call_sv(*PL_stack_sp--, flags); |
a0d0e21e LW |
1211 | } |
1212 | ||
1213 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
1214 | I32 | |
8ac85365 NIS |
1215 | perl_call_sv(SV *sv, I32 flags) |
1216 | ||
1217 | /* See G_* flags in cop.h */ | |
a0d0e21e | 1218 | { |
924508f0 | 1219 | dSP; |
a0d0e21e | 1220 | LOGOP myop; /* fake syntax tree node */ |
aa689395 | 1221 | I32 oldmark; |
a0d0e21e | 1222 | I32 retval; |
a0d0e21e | 1223 | I32 oldscope; |
54310121 | 1224 | bool oldcatch = CATCH_GET; |
1225 | dJMPENV; | |
6224f72b | 1226 | int ret; |
533c011a | 1227 | OP* oldop = PL_op; |
1e422769 | 1228 | |
a0d0e21e LW |
1229 | if (flags & G_DISCARD) { |
1230 | ENTER; | |
1231 | SAVETMPS; | |
1232 | } | |
1233 | ||
aa689395 | 1234 | Zero(&myop, 1, LOGOP); |
54310121 | 1235 | myop.op_next = Nullop; |
f51d4af5 | 1236 | if (!(flags & G_NOARGS)) |
aa689395 | 1237 | myop.op_flags |= OPf_STACKED; |
54310121 | 1238 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
1239 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
1240 | OPf_WANT_SCALAR); | |
462e5cf6 | 1241 | SAVEOP(); |
533c011a | 1242 | PL_op = (OP*)&myop; |
aa689395 | 1243 | |
3280af22 NIS |
1244 | EXTEND(PL_stack_sp, 1); |
1245 | *++PL_stack_sp = sv; | |
aa689395 | 1246 | oldmark = TOPMARK; |
3280af22 | 1247 | oldscope = PL_scopestack_ix; |
a0d0e21e | 1248 | |
3280af22 | 1249 | if (PERLDB_SUB && PL_curstash != PL_debstash |
36477c24 | 1250 | /* Handle first BEGIN of -d. */ |
3280af22 | 1251 | && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub))) |
36477c24 | 1252 | /* Try harder, since this may have been a sighandler, thus |
1253 | * curstash may be meaningless. */ | |
3280af22 | 1254 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash) |
491527d0 | 1255 | && !(flags & G_NODEBUG)) |
533c011a | 1256 | PL_op->op_private |= OPpENTERSUB_DB; |
a0d0e21e LW |
1257 | |
1258 | if (flags & G_EVAL) { | |
533c011a | 1259 | cLOGOP->op_other = PL_op; |
3280af22 | 1260 | PL_markstack_ptr--; |
4633a7c4 LW |
1261 | /* we're trying to emulate pp_entertry() here */ |
1262 | { | |
c09156bb | 1263 | register PERL_CONTEXT *cx; |
54310121 | 1264 | I32 gimme = GIMME_V; |
4633a7c4 LW |
1265 | |
1266 | ENTER; | |
1267 | SAVETMPS; | |
1268 | ||
533c011a | 1269 | push_return(PL_op->op_next); |
3280af22 | 1270 | PUSHBLOCK(cx, CXt_EVAL, PL_stack_sp); |
4633a7c4 | 1271 | PUSHEVAL(cx, 0, 0); |
533c011a | 1272 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ |
4633a7c4 | 1273 | |
3280af22 | 1274 | PL_in_eval = 1; |
4633a7c4 | 1275 | if (flags & G_KEEPERR) |
3280af22 | 1276 | PL_in_eval |= 4; |
4633a7c4 | 1277 | else |
38a03e6e | 1278 | sv_setpv(ERRSV,""); |
4633a7c4 | 1279 | } |
3280af22 | 1280 | PL_markstack_ptr++; |
a0d0e21e | 1281 | |
6224f72b GS |
1282 | JMPENV_PUSH(ret); |
1283 | switch (ret) { | |
1284 | case 0: | |
a0d0e21e | 1285 | break; |
6224f72b | 1286 | case 1: |
f86702cc | 1287 | STATUS_ALL_FAILURE; |
a0d0e21e | 1288 | /* FALL THROUGH */ |
6224f72b | 1289 | case 2: |
a0d0e21e | 1290 | /* my_exit() was called */ |
3280af22 | 1291 | PL_curstash = PL_defstash; |
a0d0e21e | 1292 | FREETMPS; |
54310121 | 1293 | JMPENV_POP; |
3280af22 | 1294 | if (PL_statusvalue) |
a0d0e21e | 1295 | croak("Callback called exit"); |
f86702cc | 1296 | my_exit_jump(); |
a0d0e21e | 1297 | /* NOTREACHED */ |
6224f72b | 1298 | case 3: |
3280af22 | 1299 | if (PL_restartop) { |
533c011a | 1300 | PL_op = PL_restartop; |
3280af22 | 1301 | PL_restartop = 0; |
54310121 | 1302 | break; |
a0d0e21e | 1303 | } |
3280af22 | 1304 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
1305 | if (flags & G_ARRAY) |
1306 | retval = 0; | |
1307 | else { | |
1308 | retval = 1; | |
3280af22 | 1309 | *++PL_stack_sp = &PL_sv_undef; |
a0d0e21e LW |
1310 | } |
1311 | goto cleanup; | |
1312 | } | |
1313 | } | |
1e422769 | 1314 | else |
54310121 | 1315 | CATCH_SET(TRUE); |
a0d0e21e | 1316 | |
533c011a NIS |
1317 | if (PL_op == (OP*)&myop) |
1318 | PL_op = pp_entersub(ARGS); | |
1319 | if (PL_op) | |
76e3520e | 1320 | CALLRUNOPS(); |
3280af22 | 1321 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
4633a7c4 | 1322 | if ((flags & G_EVAL) && !(flags & G_KEEPERR)) |
38a03e6e | 1323 | sv_setpv(ERRSV,""); |
a0d0e21e LW |
1324 | |
1325 | cleanup: | |
1326 | if (flags & G_EVAL) { | |
3280af22 | 1327 | if (PL_scopestack_ix > oldscope) { |
a0a2876f LW |
1328 | SV **newsp; |
1329 | PMOP *newpm; | |
1330 | I32 gimme; | |
c09156bb | 1331 | register PERL_CONTEXT *cx; |
a0a2876f LW |
1332 | I32 optype; |
1333 | ||
1334 | POPBLOCK(cx,newpm); | |
1335 | POPEVAL(cx); | |
1336 | pop_return(); | |
3280af22 | 1337 | PL_curpm = newpm; |
a0a2876f | 1338 | LEAVE; |
a0d0e21e | 1339 | } |
54310121 | 1340 | JMPENV_POP; |
a0d0e21e | 1341 | } |
1e422769 | 1342 | else |
54310121 | 1343 | CATCH_SET(oldcatch); |
1e422769 | 1344 | |
a0d0e21e | 1345 | if (flags & G_DISCARD) { |
3280af22 | 1346 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
1347 | retval = 0; |
1348 | FREETMPS; | |
1349 | LEAVE; | |
1350 | } | |
533c011a | 1351 | PL_op = oldop; |
a0d0e21e LW |
1352 | return retval; |
1353 | } | |
1354 | ||
6e72f9df | 1355 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 | 1356 | |
a0d0e21e | 1357 | I32 |
8ac85365 NIS |
1358 | perl_eval_sv(SV *sv, I32 flags) |
1359 | ||
1360 | /* See G_* flags in cop.h */ | |
a0d0e21e | 1361 | { |
924508f0 | 1362 | dSP; |
a0d0e21e | 1363 | UNOP myop; /* fake syntax tree node */ |
3280af22 | 1364 | I32 oldmark = SP - PL_stack_base; |
4633a7c4 | 1365 | I32 retval; |
4633a7c4 | 1366 | I32 oldscope; |
54310121 | 1367 | dJMPENV; |
6224f72b | 1368 | int ret; |
533c011a | 1369 | OP* oldop = PL_op; |
84902520 | 1370 | |
4633a7c4 LW |
1371 | if (flags & G_DISCARD) { |
1372 | ENTER; | |
1373 | SAVETMPS; | |
1374 | } | |
1375 | ||
462e5cf6 | 1376 | SAVEOP(); |
533c011a NIS |
1377 | PL_op = (OP*)&myop; |
1378 | Zero(PL_op, 1, UNOP); | |
3280af22 NIS |
1379 | EXTEND(PL_stack_sp, 1); |
1380 | *++PL_stack_sp = sv; | |
1381 | oldscope = PL_scopestack_ix; | |
79072805 | 1382 | |
4633a7c4 LW |
1383 | if (!(flags & G_NOARGS)) |
1384 | myop.op_flags = OPf_STACKED; | |
79072805 | 1385 | myop.op_next = Nullop; |
6e72f9df | 1386 | myop.op_type = OP_ENTEREVAL; |
54310121 | 1387 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
1388 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
1389 | OPf_WANT_SCALAR); | |
6e72f9df | 1390 | if (flags & G_KEEPERR) |
1391 | myop.op_flags |= OPf_SPECIAL; | |
4633a7c4 | 1392 | |
6224f72b GS |
1393 | JMPENV_PUSH(ret); |
1394 | switch (ret) { | |
1395 | case 0: | |
4633a7c4 | 1396 | break; |
6224f72b | 1397 | case 1: |
f86702cc | 1398 | STATUS_ALL_FAILURE; |
4633a7c4 | 1399 | /* FALL THROUGH */ |
6224f72b | 1400 | case 2: |
4633a7c4 | 1401 | /* my_exit() was called */ |
3280af22 | 1402 | PL_curstash = PL_defstash; |
4633a7c4 | 1403 | FREETMPS; |
54310121 | 1404 | JMPENV_POP; |
3280af22 | 1405 | if (PL_statusvalue) |
4633a7c4 | 1406 | croak("Callback called exit"); |
f86702cc | 1407 | my_exit_jump(); |
4633a7c4 | 1408 | /* NOTREACHED */ |
6224f72b | 1409 | case 3: |
3280af22 | 1410 | if (PL_restartop) { |
533c011a | 1411 | PL_op = PL_restartop; |
3280af22 | 1412 | PL_restartop = 0; |
54310121 | 1413 | break; |
4633a7c4 | 1414 | } |
3280af22 | 1415 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
1416 | if (flags & G_ARRAY) |
1417 | retval = 0; | |
1418 | else { | |
1419 | retval = 1; | |
3280af22 | 1420 | *++PL_stack_sp = &PL_sv_undef; |
4633a7c4 LW |
1421 | } |
1422 | goto cleanup; | |
1423 | } | |
1424 | ||
533c011a NIS |
1425 | if (PL_op == (OP*)&myop) |
1426 | PL_op = pp_entereval(ARGS); | |
1427 | if (PL_op) | |
76e3520e | 1428 | CALLRUNOPS(); |
3280af22 | 1429 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
6e72f9df | 1430 | if (!(flags & G_KEEPERR)) |
38a03e6e | 1431 | sv_setpv(ERRSV,""); |
4633a7c4 LW |
1432 | |
1433 | cleanup: | |
54310121 | 1434 | JMPENV_POP; |
4633a7c4 | 1435 | if (flags & G_DISCARD) { |
3280af22 | 1436 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
1437 | retval = 0; |
1438 | FREETMPS; | |
1439 | LEAVE; | |
1440 | } | |
533c011a | 1441 | PL_op = oldop; |
4633a7c4 LW |
1442 | return retval; |
1443 | } | |
1444 | ||
137443ea | 1445 | SV* |
08105a92 | 1446 | perl_eval_pv(const char *p, I32 croak_on_error) |
137443ea | 1447 | { |
1448 | dSP; | |
1449 | SV* sv = newSVpv(p, 0); | |
1450 | ||
924508f0 | 1451 | PUSHMARK(SP); |
137443ea | 1452 | perl_eval_sv(sv, G_SCALAR); |
1453 | SvREFCNT_dec(sv); | |
1454 | ||
1455 | SPAGAIN; | |
1456 | sv = POPs; | |
1457 | PUTBACK; | |
1458 | ||
2d8e6c8d GS |
1459 | if (croak_on_error && SvTRUE(ERRSV)) { |
1460 | STRLEN n_a; | |
1461 | croak(SvPVx(ERRSV, n_a)); | |
1462 | } | |
137443ea | 1463 | |
1464 | return sv; | |
1465 | } | |
1466 | ||
4633a7c4 LW |
1467 | /* Require a module. */ |
1468 | ||
1469 | void | |
08105a92 | 1470 | perl_require_pv(const char *pv) |
4633a7c4 | 1471 | { |
d3acc0f7 JP |
1472 | SV* sv; |
1473 | dSP; | |
e788e7d3 | 1474 | PUSHSTACKi(PERLSI_REQUIRE); |
d3acc0f7 JP |
1475 | PUTBACK; |
1476 | sv = sv_newmortal(); | |
4633a7c4 LW |
1477 | sv_setpv(sv, "require '"); |
1478 | sv_catpv(sv, pv); | |
1479 | sv_catpv(sv, "'"); | |
1480 | perl_eval_sv(sv, G_DISCARD); | |
d3acc0f7 JP |
1481 | SPAGAIN; |
1482 | POPSTACK; | |
79072805 LW |
1483 | } |
1484 | ||
79072805 | 1485 | void |
8ac85365 | 1486 | magicname(char *sym, char *name, I32 namlen) |
79072805 LW |
1487 | { |
1488 | register GV *gv; | |
1489 | ||
85e6fe83 | 1490 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 LW |
1491 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
1492 | } | |
1493 | ||
76e3520e | 1494 | STATIC void |
8ac85365 NIS |
1495 | usage(char *name) /* XXX move this out into a module ? */ |
1496 | ||
4633a7c4 | 1497 | { |
ab821d7f | 1498 | /* This message really ought to be max 23 lines. |
1499 | * Removed -h because the user already knows that opton. Others? */ | |
fb73857a | 1500 | |
76e3520e | 1501 | static char *usage_msg[] = { |
fb73857a | 1502 | "-0[octal] specify record separator (\\0, if no argument)", |
1503 | "-a autosplit mode with -n or -p (splits $_ into @F)", | |
1504 | "-c check syntax only (runs BEGIN and END blocks)", | |
1505 | "-d[:debugger] run scripts under debugger", | |
1506 | "-D[number/list] set debugging flags (argument is a bit mask or flags)", | |
1507 | "-e 'command' one line of script. Several -e's allowed. Omit [programfile].", | |
1508 | "-F/pattern/ split() pattern for autosplit (-a). The //'s are optional.", | |
1509 | "-i[extension] edit <> files in place (make backup if extension supplied)", | |
1510 | "-Idirectory specify @INC/#include directory (may be used more than once)", | |
1511 | "-l[octal] enable line ending processing, specifies line terminator", | |
1512 | "-[mM][-]module.. executes `use/no module...' before executing your script.", | |
1513 | "-n assume 'while (<>) { ... }' loop around your script", | |
1514 | "-p assume loop like -n but print line also like sed", | |
1515 | "-P run script through C preprocessor before compilation", | |
1516 | "-s enable some switch parsing for switches after script name", | |
1517 | "-S look for the script using PATH environment variable", | |
1518 | "-T turn on tainting checks", | |
1519 | "-u dump core after parsing script", | |
1520 | "-U allow unsafe operations", | |
95103687 | 1521 | "-v print version number, patchlevel plus VERY IMPORTANT perl info", |
fb73857a | 1522 | "-V[:variable] print perl configuration information", |
1523 | "-w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT. Recommended.", | |
1524 | "-x[directory] strip off text before #!perl line and perhaps cd to directory", | |
1525 | "\n", | |
1526 | NULL | |
1527 | }; | |
76e3520e | 1528 | char **p = usage_msg; |
fb73857a | 1529 | |
ab821d7f | 1530 | printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name); |
fb73857a | 1531 | while (*p) |
1532 | printf("\n %s", *p++); | |
4633a7c4 LW |
1533 | } |
1534 | ||
79072805 LW |
1535 | /* This routine handles any switches that can be given during run */ |
1536 | ||
1537 | char * | |
8ac85365 | 1538 | moreswitches(char *s) |
79072805 LW |
1539 | { |
1540 | I32 numlen; | |
c07a80fd | 1541 | U32 rschar; |
79072805 LW |
1542 | |
1543 | switch (*s) { | |
1544 | case '0': | |
a863c7d1 MB |
1545 | { |
1546 | dTHR; | |
c07a80fd | 1547 | rschar = scan_oct(s, 4, &numlen); |
3280af22 | 1548 | SvREFCNT_dec(PL_nrs); |
c07a80fd | 1549 | if (rschar & ~((U8)~0)) |
3280af22 | 1550 | PL_nrs = &PL_sv_undef; |
c07a80fd | 1551 | else if (!rschar && numlen >= 2) |
3280af22 | 1552 | PL_nrs = newSVpv("", 0); |
c07a80fd | 1553 | else { |
1554 | char ch = rschar; | |
3280af22 | 1555 | PL_nrs = newSVpv(&ch, 1); |
79072805 LW |
1556 | } |
1557 | return s + numlen; | |
a863c7d1 | 1558 | } |
2304df62 | 1559 | case 'F': |
3280af22 NIS |
1560 | PL_minus_F = TRUE; |
1561 | PL_splitstr = savepv(s + 1); | |
2304df62 AD |
1562 | s += strlen(s); |
1563 | return s; | |
79072805 | 1564 | case 'a': |
3280af22 | 1565 | PL_minus_a = TRUE; |
79072805 LW |
1566 | s++; |
1567 | return s; | |
1568 | case 'c': | |
3280af22 | 1569 | PL_minus_c = TRUE; |
79072805 LW |
1570 | s++; |
1571 | return s; | |
1572 | case 'd': | |
bbce6d69 | 1573 | forbid_setid("-d"); |
4633a7c4 | 1574 | s++; |
c07a80fd | 1575 | if (*s == ':' || *s == '=') { |
46fc3d4c | 1576 | my_setenv("PERL5DB", form("use Devel::%s;", ++s)); |
4633a7c4 | 1577 | s += strlen(s); |
4633a7c4 | 1578 | } |
3280af22 NIS |
1579 | if (!PL_perldb) { |
1580 | PL_perldb = PERLDB_ALL; | |
a0d0e21e LW |
1581 | init_debugger(); |
1582 | } | |
79072805 LW |
1583 | return s; |
1584 | case 'D': | |
1585 | #ifdef DEBUGGING | |
bbce6d69 | 1586 | forbid_setid("-D"); |
79072805 | 1587 | if (isALPHA(s[1])) { |
8b73bbec | 1588 | static char debopts[] = "psltocPmfrxuLHXDS"; |
79072805 LW |
1589 | char *d; |
1590 | ||
93a17b20 | 1591 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
3280af22 | 1592 | PL_debug |= 1 << (d - debopts); |
79072805 LW |
1593 | } |
1594 | else { | |
3280af22 | 1595 | PL_debug = atoi(s+1); |
79072805 LW |
1596 | for (s++; isDIGIT(*s); s++) ; |
1597 | } | |
3280af22 | 1598 | PL_debug |= 0x80000000; |
79072805 LW |
1599 | #else |
1600 | warn("Recompile perl with -DDEBUGGING to use -D switch\n"); | |
a0d0e21e | 1601 | for (s++; isALNUM(*s); s++) ; |
79072805 LW |
1602 | #endif |
1603 | /*SUPPRESS 530*/ | |
1604 | return s; | |
4633a7c4 | 1605 | case 'h': |
3280af22 | 1606 | usage(PL_origargv[0]); |
6ad3d225 | 1607 | PerlProc_exit(0); |
79072805 | 1608 | case 'i': |
3280af22 NIS |
1609 | if (PL_inplace) |
1610 | Safefree(PL_inplace); | |
1611 | PL_inplace = savepv(s+1); | |
79072805 | 1612 | /*SUPPRESS 530*/ |
3280af22 | 1613 | for (s = PL_inplace; *s && !isSPACE(*s); s++) ; |
7b8d334a | 1614 | if (*s) { |
fb73857a | 1615 | *s++ = '\0'; |
7b8d334a GS |
1616 | if (*s == '-') /* Additional switches on #! line. */ |
1617 | s++; | |
1618 | } | |
fb73857a | 1619 | return s; |
1620 | case 'I': /* -I handled both here and in parse_perl() */ | |
bbce6d69 | 1621 | forbid_setid("-I"); |
fb73857a | 1622 | ++s; |
1623 | while (*s && isSPACE(*s)) | |
1624 | ++s; | |
1625 | if (*s) { | |
774d564b | 1626 | char *e, *p; |
748a9306 | 1627 | for (e = s; *e && !isSPACE(*e); e++) ; |
774d564b | 1628 | p = savepvn(s, e-s); |
1629 | incpush(p, TRUE); | |
1630 | Safefree(p); | |
fb73857a | 1631 | s = e; |
79072805 LW |
1632 | } |
1633 | else | |
463ee0b2 | 1634 | croak("No space allowed after -I"); |
fb73857a | 1635 | return s; |
79072805 | 1636 | case 'l': |
3280af22 | 1637 | PL_minus_l = TRUE; |
79072805 | 1638 | s++; |
3280af22 NIS |
1639 | if (PL_ors) |
1640 | Safefree(PL_ors); | |
79072805 | 1641 | if (isDIGIT(*s)) { |
3280af22 NIS |
1642 | PL_ors = savepv("\n"); |
1643 | PL_orslen = 1; | |
1644 | *PL_ors = scan_oct(s, 3 + (*s == '0'), &numlen); | |
79072805 LW |
1645 | s += numlen; |
1646 | } | |
1647 | else { | |
a863c7d1 | 1648 | dTHR; |
3280af22 NIS |
1649 | if (RsPARA(PL_nrs)) { |
1650 | PL_ors = "\n\n"; | |
1651 | PL_orslen = 2; | |
c07a80fd | 1652 | } |
1653 | else | |
3280af22 NIS |
1654 | PL_ors = SvPV(PL_nrs, PL_orslen); |
1655 | PL_ors = savepvn(PL_ors, PL_orslen); | |
79072805 LW |
1656 | } |
1657 | return s; | |
1a30305b | 1658 | case 'M': |
bbce6d69 | 1659 | forbid_setid("-M"); /* XXX ? */ |
1a30305b | 1660 | /* FALL THROUGH */ |
1661 | case 'm': | |
bbce6d69 | 1662 | forbid_setid("-m"); /* XXX ? */ |
1a30305b | 1663 | if (*++s) { |
a5f75d66 | 1664 | char *start; |
11343788 | 1665 | SV *sv; |
a5f75d66 AD |
1666 | char *use = "use "; |
1667 | /* -M-foo == 'no foo' */ | |
1668 | if (*s == '-') { use = "no "; ++s; } | |
11343788 | 1669 | sv = newSVpv(use,0); |
a5f75d66 | 1670 | start = s; |
1a30305b | 1671 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd | 1672 | while(isALNUM(*s) || *s==':') ++s; |
1673 | if (*s != '=') { | |
11343788 | 1674 | sv_catpv(sv, start); |
c07a80fd | 1675 | if (*(start-1) == 'm') { |
1676 | if (*s != '\0') | |
1677 | croak("Can't use '%c' after -mname", *s); | |
11343788 | 1678 | sv_catpv( sv, " ()"); |
c07a80fd | 1679 | } |
1680 | } else { | |
11343788 MB |
1681 | sv_catpvn(sv, start, s-start); |
1682 | sv_catpv(sv, " split(/,/,q{"); | |
1683 | sv_catpv(sv, ++s); | |
1684 | sv_catpv(sv, "})"); | |
c07a80fd | 1685 | } |
1a30305b | 1686 | s += strlen(s); |
3280af22 NIS |
1687 | if (PL_preambleav == NULL) |
1688 | PL_preambleav = newAV(); | |
1689 | av_push(PL_preambleav, sv); | |
1a30305b | 1690 | } |
1691 | else | |
1692 | croak("No space allowed after -%c", *(s-1)); | |
1693 | return s; | |
79072805 | 1694 | case 'n': |
3280af22 | 1695 | PL_minus_n = TRUE; |
79072805 LW |
1696 | s++; |
1697 | return s; | |
1698 | case 'p': | |
3280af22 | 1699 | PL_minus_p = TRUE; |
79072805 LW |
1700 | s++; |
1701 | return s; | |
1702 | case 's': | |
bbce6d69 | 1703 | forbid_setid("-s"); |
3280af22 | 1704 | PL_doswitches = TRUE; |
79072805 LW |
1705 | s++; |
1706 | return s; | |
463ee0b2 | 1707 | case 'T': |
3280af22 | 1708 | if (!PL_tainting) |
9607fc9c | 1709 | croak("Too late for \"-T\" option"); |
463ee0b2 LW |
1710 | s++; |
1711 | return s; | |
79072805 | 1712 | case 'u': |
3280af22 | 1713 | PL_do_undump = TRUE; |
79072805 LW |
1714 | s++; |
1715 | return s; | |
1716 | case 'U': | |
3280af22 | 1717 | PL_unsafe = TRUE; |
79072805 LW |
1718 | s++; |
1719 | return s; | |
1720 | case 'v': | |
cceca5ed GS |
1721 | #if defined(PERL_SUBVERSION) && PERL_SUBVERSION > 0 |
1722 | printf("\nThis is perl, version %d.%03d_%02d built for %s", | |
1723 | PERL_REVISION, PERL_VERSION, PERL_SUBVERSION, ARCHNAME); | |
a5f75d66 | 1724 | #else |
fb73857a | 1725 | printf("\nThis is perl, version %s built for %s", |
6b88bc9c | 1726 | PL_patchlevel, ARCHNAME); |
fb73857a | 1727 | #endif |
1728 | #if defined(LOCAL_PATCH_COUNT) | |
1729 | if (LOCAL_PATCH_COUNT > 0) | |
1730 | printf("\n(with %d registered patch%s, see perl -V for more detail)", | |
1731 | LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : ""); | |
a5f75d66 | 1732 | #endif |
1a30305b | 1733 | |
a411490c | 1734 | printf("\n\nCopyright 1987-1998, Larry Wall\n"); |
79072805 | 1735 | #ifdef MSDOS |
fb73857a | 1736 | printf("\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); |
55497cff | 1737 | #endif |
1738 | #ifdef DJGPP | |
1739 | printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n"); | |
9731c6ca | 1740 | printf("djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1998\n"); |
4633a7c4 | 1741 | #endif |
79072805 | 1742 | #ifdef OS2 |
5dd60ef7 | 1743 | printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" |
a411490c | 1744 | "Version 5 port Copyright (c) 1994-1998, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 | 1745 | #endif |
79072805 | 1746 | #ifdef atarist |
760ac839 | 1747 | printf("atariST series port, ++jrb bammi@cadence.com\n"); |
79072805 | 1748 | #endif |
a3f9223b GS |
1749 | #ifdef __BEOS__ |
1750 | printf("BeOS port Copyright Tom Spindler, 1997-1998\n"); | |
1751 | #endif | |
1d84e8df JH |
1752 | #ifdef MPE |
1753 | printf("MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-1998\n"); | |
1754 | #endif | |
9d116dd7 JH |
1755 | #ifdef OEMVS |
1756 | printf("MVS (OS390) port by Mortice Kern Systems, 1997-1998\n"); | |
1757 | #endif | |
495c5fdc PG |
1758 | #ifdef __VOS__ |
1759 | printf("Stratus VOS port by Paul_Green@stratus.com, 1997-1998\n"); | |
1760 | #endif | |
092bebab JH |
1761 | #ifdef __OPEN_VM |
1762 | printf("VM/ESA port by Neale Ferguson, 1998\n"); | |
1763 | #endif | |
a1a0e61e TD |
1764 | #ifdef POSIX_BC |
1765 | printf("BS2000 (POSIX) port by Start Amadeus GmbH, 1998\n"); | |
1766 | #endif | |
61ae2fbf JH |
1767 | #ifdef __MINT__ |
1768 | printf("MiNT port by Guido Flohr, 1997\n"); | |
1769 | #endif | |
baed7233 DL |
1770 | #ifdef BINARY_BUILD_NOTICE |
1771 | BINARY_BUILD_NOTICE; | |
1772 | #endif | |
760ac839 | 1773 | printf("\n\ |
79072805 | 1774 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
95103687 GS |
1775 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\ |
1776 | Complete documentation for Perl, including FAQ lists, should be found on\n\ | |
1777 | this system using `man perl' or `perldoc perl'. If you have access to the\n\ | |
1778 | Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n"); | |
6ad3d225 | 1779 | PerlProc_exit(0); |
79072805 | 1780 | case 'w': |
599cee73 PM |
1781 | if (! (PL_dowarn & G_WARN_ALL_MASK)) |
1782 | PL_dowarn |= G_WARN_ON; | |
1783 | s++; | |
1784 | return s; | |
1785 | case 'W': | |
1786 | PL_dowarn = G_WARN_ALL_ON|G_WARN_ON; | |
e24b16f9 | 1787 | PL_compiling.cop_warnings = WARN_ALL ; |
599cee73 PM |
1788 | s++; |
1789 | return s; | |
1790 | case 'X': | |
1791 | PL_dowarn = G_WARN_ALL_OFF; | |
e24b16f9 | 1792 | PL_compiling.cop_warnings = WARN_NONE ; |
79072805 LW |
1793 | s++; |
1794 | return s; | |
a0d0e21e | 1795 | case '*': |
79072805 LW |
1796 | case ' ': |
1797 | if (s[1] == '-') /* Additional switches on #! line. */ | |
1798 | return s+2; | |
1799 | break; | |
a0d0e21e | 1800 | case '-': |
79072805 | 1801 | case 0: |
51882d45 | 1802 | #if defined(WIN32) || !defined(PERL_STRICT_CR) |
a868473f NIS |
1803 | case '\r': |
1804 | #endif | |
79072805 LW |
1805 | case '\n': |
1806 | case '\t': | |
1807 | break; | |
aa689395 | 1808 | #ifdef ALTERNATE_SHEBANG |
1809 | case 'S': /* OS/2 needs -S on "extproc" line. */ | |
1810 | break; | |
1811 | #endif | |
a0d0e21e | 1812 | case 'P': |
3280af22 | 1813 | if (PL_preprocess) |
a0d0e21e LW |
1814 | return s+1; |
1815 | /* FALL THROUGH */ | |
79072805 | 1816 | default: |
a0d0e21e | 1817 | croak("Can't emulate -%.1s on #! line",s); |
79072805 LW |
1818 | } |
1819 | return Nullch; | |
1820 | } | |
1821 | ||
1822 | /* compliments of Tom Christiansen */ | |
1823 | ||
1824 | /* unexec() can be found in the Gnu emacs distribution */ | |
ee580363 | 1825 | /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */ |
79072805 LW |
1826 | |
1827 | void | |
8ac85365 | 1828 | my_unexec(void) |
79072805 LW |
1829 | { |
1830 | #ifdef UNEXEC | |
46fc3d4c | 1831 | SV* prog; |
1832 | SV* file; | |
ee580363 | 1833 | int status = 1; |
79072805 LW |
1834 | extern int etext; |
1835 | ||
ee580363 | 1836 | prog = newSVpv(BIN_EXP, 0); |
46fc3d4c | 1837 | sv_catpv(prog, "/perl"); |
6b88bc9c | 1838 | file = newSVpv(PL_origfilename, 0); |
46fc3d4c | 1839 | sv_catpv(file, ".perldump"); |
79072805 | 1840 | |
ee580363 GS |
1841 | unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0); |
1842 | /* unexec prints msg to stderr in case of failure */ | |
6ad3d225 | 1843 | PerlProc_exit(status); |
79072805 | 1844 | #else |
a5f75d66 AD |
1845 | # ifdef VMS |
1846 | # include <lib$routines.h> | |
1847 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ | |
aa689395 | 1848 | # else |
79072805 | 1849 | ABORT(); /* for use with undump */ |
aa689395 | 1850 | # endif |
a5f75d66 | 1851 | #endif |
79072805 LW |
1852 | } |
1853 | ||
cb68f92d GS |
1854 | /* initialize curinterp */ |
1855 | STATIC void | |
1856 | init_interp(void) | |
1857 | { | |
1858 | ||
066ef5b5 | 1859 | #ifdef PERL_OBJECT /* XXX kludge */ |
cb68f92d | 1860 | #define I_REINIT \ |
6b88bc9c GS |
1861 | STMT_START { \ |
1862 | PL_chopset = " \n-"; \ | |
1863 | PL_copline = NOLINE; \ | |
1864 | PL_curcop = &PL_compiling;\ | |
1865 | PL_curcopdb = NULL; \ | |
1866 | PL_dbargs = 0; \ | |
1867 | PL_dlmax = 128; \ | |
3967c732 | 1868 | PL_dumpindent = 4; \ |
6b88bc9c GS |
1869 | PL_laststatval = -1; \ |
1870 | PL_laststype = OP_STAT; \ | |
1871 | PL_maxscream = -1; \ | |
1872 | PL_maxsysfd = MAXSYSFD; \ | |
1873 | PL_statname = Nullsv; \ | |
1874 | PL_tmps_floor = -1; \ | |
1875 | PL_tmps_ix = -1; \ | |
1876 | PL_op_mask = NULL; \ | |
1877 | PL_dlmax = 128; \ | |
1878 | PL_laststatval = -1; \ | |
1879 | PL_laststype = OP_STAT; \ | |
1880 | PL_mess_sv = Nullsv; \ | |
1881 | PL_splitstr = " "; \ | |
1882 | PL_generation = 100; \ | |
1883 | PL_exitlist = NULL; \ | |
1884 | PL_exitlistlen = 0; \ | |
1885 | PL_regindent = 0; \ | |
1886 | PL_in_clean_objs = FALSE; \ | |
1887 | PL_in_clean_all = FALSE; \ | |
1888 | PL_profiledata = NULL; \ | |
1889 | PL_rsfp = Nullfp; \ | |
1890 | PL_rsfp_filters = Nullav; \ | |
24d3c518 | 1891 | PL_dirty = FALSE; \ |
cb68f92d | 1892 | } STMT_END |
9666903d | 1893 | I_REINIT; |
066ef5b5 GS |
1894 | #else |
1895 | # ifdef MULTIPLICITY | |
1896 | # define PERLVAR(var,type) | |
8f872242 NIS |
1897 | # define PERLVARI(var,type,init) PL_curinterp->var = init; |
1898 | # define PERLVARIC(var,type,init) PL_curinterp->var = init; | |
066ef5b5 GS |
1899 | # include "intrpvar.h" |
1900 | # ifndef USE_THREADS | |
1901 | # include "thrdvar.h" | |
1902 | # endif | |
1903 | # undef PERLVAR | |
1904 | # undef PERLVARI | |
1905 | # undef PERLVARIC | |
3967c732 | 1906 | # else |
066ef5b5 | 1907 | # define PERLVAR(var,type) |
533c011a NIS |
1908 | # define PERLVARI(var,type,init) PL_##var = init; |
1909 | # define PERLVARIC(var,type,init) PL_##var = init; | |
066ef5b5 GS |
1910 | # include "intrpvar.h" |
1911 | # ifndef USE_THREADS | |
1912 | # include "thrdvar.h" | |
1913 | # endif | |
1914 | # undef PERLVAR | |
1915 | # undef PERLVARI | |
1916 | # undef PERLVARIC | |
1917 | # endif | |
cb68f92d GS |
1918 | #endif |
1919 | ||
cb68f92d GS |
1920 | } |
1921 | ||
76e3520e | 1922 | STATIC void |
8ac85365 | 1923 | init_main_stash(void) |
79072805 | 1924 | { |
11343788 | 1925 | dTHR; |
463ee0b2 | 1926 | GV *gv; |
6e72f9df | 1927 | |
1928 | /* Note that strtab is a rather special HV. Assumptions are made | |
1929 | about not iterating on it, and not adding tie magic to it. | |
1930 | It is properly deallocated in perl_destruct() */ | |
3280af22 | 1931 | PL_strtab = newHV(); |
5f08fbcd GS |
1932 | #ifdef USE_THREADS |
1933 | MUTEX_INIT(&PL_strtab_mutex); | |
1934 | #endif | |
3280af22 NIS |
1935 | HvSHAREKEYS_off(PL_strtab); /* mandatory */ |
1936 | hv_ksplit(PL_strtab, 512); | |
6e72f9df | 1937 | |
3280af22 NIS |
1938 | PL_curstash = PL_defstash = newHV(); |
1939 | PL_curstname = newSVpv("main",4); | |
adbc6bb1 LW |
1940 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
1941 | SvREFCNT_dec(GvHV(gv)); | |
3280af22 | 1942 | GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash); |
463ee0b2 | 1943 | SvREADONLY_on(gv); |
3280af22 NIS |
1944 | HvNAME(PL_defstash) = savepv("main"); |
1945 | PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); | |
1946 | GvMULTI_on(PL_incgv); | |
1947 | PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */ | |
1948 | GvMULTI_on(PL_hintgv); | |
1949 | PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV); | |
1950 | PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); | |
1951 | GvMULTI_on(PL_errgv); | |
1952 | PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */ | |
1953 | GvMULTI_on(PL_replgv); | |
84902520 | 1954 | (void)form("%240s",""); /* Preallocate temp - for immediate signals. */ |
38a03e6e MB |
1955 | sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */ |
1956 | sv_setpvn(ERRSV, "", 0); | |
3280af22 NIS |
1957 | PL_curstash = PL_defstash; |
1958 | PL_compiling.cop_stash = PL_defstash; | |
1959 | PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); | |
1960 | PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV)); | |
4633a7c4 | 1961 | /* We must init $/ before switches are processed. */ |
9d14cc18 | 1962 | sv_setpvn(perl_get_sv("/", TRUE), "\n", 1); |
79072805 LW |
1963 | } |
1964 | ||
76e3520e | 1965 | STATIC void |
01f988be | 1966 | open_script(char *scriptname, bool dosearch, SV *sv, int *fdscript) |
79072805 | 1967 | { |
0f15f207 | 1968 | dTHR; |
79072805 | 1969 | register char *s; |
2a92aaa0 | 1970 | |
6c4ab083 | 1971 | *fdscript = -1; |
79072805 | 1972 | |
3280af22 NIS |
1973 | if (PL_e_script) { |
1974 | PL_origfilename = savepv("-e"); | |
96436eeb | 1975 | } |
6c4ab083 GS |
1976 | else { |
1977 | /* if find_script() returns, it returns a malloc()-ed value */ | |
3280af22 | 1978 | PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1); |
6c4ab083 GS |
1979 | |
1980 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { | |
1981 | char *s = scriptname + 8; | |
1982 | *fdscript = atoi(s); | |
1983 | while (isDIGIT(*s)) | |
1984 | s++; | |
1985 | if (*s) { | |
1986 | scriptname = savepv(s + 1); | |
3280af22 NIS |
1987 | Safefree(PL_origfilename); |
1988 | PL_origfilename = scriptname; | |
6c4ab083 GS |
1989 | } |
1990 | } | |
1991 | } | |
1992 | ||
3280af22 NIS |
1993 | PL_curcop->cop_filegv = gv_fetchfile(PL_origfilename); |
1994 | if (strEQ(PL_origfilename,"-")) | |
79072805 | 1995 | scriptname = ""; |
01f988be | 1996 | if (*fdscript >= 0) { |
3280af22 | 1997 | PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE); |
96436eeb | 1998 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
3280af22 NIS |
1999 | if (PL_rsfp) |
2000 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */ | |
96436eeb | 2001 | #endif |
2002 | } | |
3280af22 | 2003 | else if (PL_preprocess) { |
46fc3d4c | 2004 | char *cpp_cfg = CPPSTDIN; |
63bfd3db | 2005 | SV *cpp = newSVpv("",0); |
46fc3d4c | 2006 | SV *cmd = NEWSV(0,0); |
2007 | ||
2008 | if (strEQ(cpp_cfg, "cppstdin")) | |
2009 | sv_catpvf(cpp, "%s/", BIN_EXP); | |
2010 | sv_catpv(cpp, cpp_cfg); | |
79072805 | 2011 | |
79072805 | 2012 | sv_catpv(sv,"-I"); |
fed7345c | 2013 | sv_catpv(sv,PRIVLIB_EXP); |
46fc3d4c | 2014 | |
79072805 | 2015 | #ifdef MSDOS |
46fc3d4c | 2016 | sv_setpvf(cmd, "\ |
79072805 LW |
2017 | sed %s -e \"/^[^#]/b\" \ |
2018 | -e \"/^#[ ]*include[ ]/b\" \ | |
2019 | -e \"/^#[ ]*define[ ]/b\" \ | |
2020 | -e \"/^#[ ]*if[ ]/b\" \ | |
2021 | -e \"/^#[ ]*ifdef[ ]/b\" \ | |
2022 | -e \"/^#[ ]*ifndef[ ]/b\" \ | |
2023 | -e \"/^#[ ]*else/b\" \ | |
2024 | -e \"/^#[ ]*elif[ ]/b\" \ | |
2025 | -e \"/^#[ ]*undef[ ]/b\" \ | |
2026 | -e \"/^#[ ]*endif/b\" \ | |
2027 | -e \"s/^#.*//\" \ | |
fc36a67e | 2028 | %s | %_ -C %_ %s", |
6b88bc9c | 2029 | (PL_doextract ? "-e \"1,/^#/d\n\"" : ""), |
79072805 | 2030 | #else |
092bebab JH |
2031 | # ifdef __OPEN_VM |
2032 | sv_setpvf(cmd, "\ | |
2033 | %s %s -e '/^[^#]/b' \ | |
2034 | -e '/^#[ ]*include[ ]/b' \ | |
2035 | -e '/^#[ ]*define[ ]/b' \ | |
2036 | -e '/^#[ ]*if[ ]/b' \ | |
2037 | -e '/^#[ ]*ifdef[ ]/b' \ | |
2038 | -e '/^#[ ]*ifndef[ ]/b' \ | |
2039 | -e '/^#[ ]*else/b' \ | |
2040 | -e '/^#[ ]*elif[ ]/b' \ | |
2041 | -e '/^#[ ]*undef[ ]/b' \ | |
2042 | -e '/^#[ ]*endif/b' \ | |
2043 | -e 's/^[ ]*#.*//' \ | |
2044 | %s | %_ %_ %s", | |
2045 | # else | |
46fc3d4c | 2046 | sv_setpvf(cmd, "\ |
79072805 LW |
2047 | %s %s -e '/^[^#]/b' \ |
2048 | -e '/^#[ ]*include[ ]/b' \ | |
2049 | -e '/^#[ ]*define[ ]/b' \ | |
2050 | -e '/^#[ ]*if[ ]/b' \ | |
2051 | -e '/^#[ ]*ifdef[ ]/b' \ | |
2052 | -e '/^#[ ]*ifndef[ ]/b' \ | |
2053 | -e '/^#[ ]*else/b' \ | |
2054 | -e '/^#[ ]*elif[ ]/b' \ | |
2055 | -e '/^#[ ]*undef[ ]/b' \ | |
2056 | -e '/^#[ ]*endif/b' \ | |
2057 | -e 's/^[ ]*#.*//' \ | |
fc36a67e | 2058 | %s | %_ -C %_ %s", |
092bebab | 2059 | # endif |
79072805 LW |
2060 | #ifdef LOC_SED |
2061 | LOC_SED, | |
2062 | #else | |
2063 | "sed", | |
2064 | #endif | |
3280af22 | 2065 | (PL_doextract ? "-e '1,/^#/d\n'" : ""), |
79072805 | 2066 | #endif |
46fc3d4c | 2067 | scriptname, cpp, sv, CPPMINUS); |
3280af22 | 2068 | PL_doextract = FALSE; |
79072805 | 2069 | #ifdef IAMSUID /* actually, this is caught earlier */ |
b28d0864 | 2070 | if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */ |
79072805 | 2071 | #ifdef HAS_SETEUID |
b28d0864 | 2072 | (void)seteuid(PL_uid); /* musn't stay setuid root */ |
79072805 LW |
2073 | #else |
2074 | #ifdef HAS_SETREUID | |
b28d0864 | 2075 | (void)setreuid((Uid_t)-1, PL_uid); |
85e6fe83 LW |
2076 | #else |
2077 | #ifdef HAS_SETRESUID | |
b28d0864 | 2078 | (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1); |
79072805 | 2079 | #else |
b28d0864 | 2080 | PerlProc_setuid(PL_uid); |
79072805 LW |
2081 | #endif |
2082 | #endif | |
85e6fe83 | 2083 | #endif |
b28d0864 | 2084 | if (PerlProc_geteuid() != PL_uid) |
463ee0b2 | 2085 | croak("Can't do seteuid!\n"); |
79072805 LW |
2086 | } |
2087 | #endif /* IAMSUID */ | |
3280af22 | 2088 | PL_rsfp = PerlProc_popen(SvPVX(cmd), "r"); |
46fc3d4c | 2089 | SvREFCNT_dec(cmd); |
2090 | SvREFCNT_dec(cpp); | |
79072805 LW |
2091 | } |
2092 | else if (!*scriptname) { | |
bbce6d69 | 2093 | forbid_setid("program input from stdin"); |
3280af22 | 2094 | PL_rsfp = PerlIO_stdin(); |
79072805 | 2095 | } |
96436eeb | 2096 | else { |
3280af22 | 2097 | PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE); |
96436eeb | 2098 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
3280af22 NIS |
2099 | if (PL_rsfp) |
2100 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */ | |
96436eeb | 2101 | #endif |
2102 | } | |
3280af22 | 2103 | if (!PL_rsfp) { |
13281fa4 | 2104 | #ifdef DOSUID |
a687059c | 2105 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
6b88bc9c GS |
2106 | if (PL_euid && |
2107 | PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&PL_statbuf) >= 0 && | |
2108 | PL_statbuf.st_mode & (S_ISUID|S_ISGID)) | |
2109 | { | |
46fc3d4c | 2110 | /* try again */ |
6b88bc9c | 2111 | PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv); |
463ee0b2 | 2112 | croak("Can't do setuid\n"); |
13281fa4 LW |
2113 | } |
2114 | #endif | |
2115 | #endif | |
463ee0b2 | 2116 | croak("Can't open perl script \"%s\": %s\n", |
3280af22 | 2117 | SvPVX(GvSV(PL_curcop->cop_filegv)), Strerror(errno)); |
13281fa4 | 2118 | } |
79072805 | 2119 | } |
8d063cd8 | 2120 | |
7b89560d JH |
2121 | /* Mention |
2122 | * I_SYSSTATVFS HAS_FSTATVFS | |
2123 | * I_SYSMOUNT | |
2124 | * I_STATFS HAS_FSTATFS | |
2125 | * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT | |
2126 | * here so that metaconfig picks them up. */ | |
2127 | ||
104d25b7 JH |
2128 | #ifdef IAMSUID |
2129 | static int | |
2130 | fd_on_nosuid_fs(int fd) | |
2131 | { | |
2132 | int on_nosuid = 0; | |
2133 | int check_okay = 0; | |
2134 | /* | |
2135 | * Preferred order: fstatvfs(), fstatfs(), getmntent(). | |
2136 | * fstatvfs() is UNIX98. | |
2137 | * fstatfs() is BSD. | |
2138 | * getmntent() is O(number-of-mounted-filesystems) and can hang. | |
2139 | */ | |
2140 | ||
2141 | # ifdef HAS_FSTATVFS | |
2142 | struct statvfs stfs; | |
2143 | check_okay = fstatvfs(fd, &stfs) == 0; | |
2144 | on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID); | |
2145 | # else | |
2146 | # if defined(HAS_FSTATFS) && defined(HAS_STRUCT_STATFS_FLAGS) | |
2147 | struct statfs stfs; | |
2148 | check_okay = fstatfs(fd, &stfs) == 0; | |
2149 | # undef PERL_MOUNT_NOSUID | |
2150 | # if !defined(PERL_MOUNT_NOSUID) && defined(MNT_NOSUID) | |
2151 | # define PERL_MOUNT_NOSUID MNT_NOSUID | |
2152 | # endif | |
2153 | # if !defined(PERL_MOUNT_NOSUID) && defined(MS_NOSUID) | |
2154 | # define PERL_MOUNT_NOSUID MS_NOSUID | |
2155 | # endif | |
2156 | # if !defined(PERL_MOUNT_NOSUID) && defined(M_NOSUID) | |
2157 | # define PERL_MOUNT_NOSUID M_NOSUID | |
2158 | # endif | |
2159 | # ifdef PERL_MOUNT_NOSUID | |
2160 | on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID); | |
2161 | # endif | |
2162 | # else | |
32b3cf08 | 2163 | # if defined(HAS_GETMNTENT) && defined(HAS_HASMNTOPT) && defined(MNTOPT_NOSUID) |
104d25b7 JH |
2164 | FILE *mtab = fopen("/etc/mtab", "r"); |
2165 | struct mntent *entry; | |
2166 | struct stat stb, fsb; | |
2167 | ||
2168 | if (mtab && (fstat(fd, &stb) == 0)) { | |
2169 | while (entry = getmntent(mtab)) { | |
2170 | if (stat(entry->mnt_dir, &fsb) == 0 | |
2171 | && fsb.st_dev == stb.st_dev) | |
2172 | { | |
2173 | /* found the filesystem */ | |
2174 | check_okay = 1; | |
2175 | if (hasmntopt(entry, MNTOPT_NOSUID)) | |
2176 | on_nosuid = 1; | |
2177 | break; | |
2178 | } /* A single fs may well fail its stat(). */ | |
2179 | } | |
2180 | } | |
2181 | if (mtab) | |
2182 | fclose(mtab); | |
2183 | # endif /* mntent */ | |
2184 | # endif /* statfs */ | |
2185 | # endif /* statvfs */ | |
2186 | if (!check_okay) | |
2187 | croak("Can't check filesystem of script \"%s\"", PL_origfilename); | |
2188 | return on_nosuid; | |
2189 | } | |
2190 | #endif /* IAMSUID */ | |
2191 | ||
76e3520e | 2192 | STATIC void |
01f988be | 2193 | validate_suid(char *validarg, char *scriptname, int fdscript) |
79072805 | 2194 | { |
96436eeb | 2195 | int which; |
2196 | ||
13281fa4 LW |
2197 | /* do we need to emulate setuid on scripts? */ |
2198 | ||
2199 | /* This code is for those BSD systems that have setuid #! scripts disabled | |
2200 | * in the kernel because of a security problem. Merely defining DOSUID | |
2201 | * in perl will not fix that problem, but if you have disabled setuid | |
2202 | * scripts in the kernel, this will attempt to emulate setuid and setgid | |
2203 | * on scripts that have those now-otherwise-useless bits set. The setuid | |
27e2fb84 LW |
2204 | * root version must be called suidperl or sperlN.NNN. If regular perl |
2205 | * discovers that it has opened a setuid script, it calls suidperl with | |
2206 | * the same argv that it had. If suidperl finds that the script it has | |
2207 | * just opened is NOT setuid root, it sets the effective uid back to the | |
2208 | * uid. We don't just make perl setuid root because that loses the | |
2209 | * effective uid we had before invoking perl, if it was different from the | |
2210 | * uid. | |
13281fa4 LW |
2211 | * |
2212 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must | |
2213 | * be defined in suidperl only. suidperl must be setuid root. The | |
2214 | * Configure script will set this up for you if you want it. | |
2215 | */ | |
a687059c | 2216 | |
13281fa4 | 2217 | #ifdef DOSUID |
ea0efc06 | 2218 | dTHR; |
6e72f9df | 2219 | char *s, *s2; |
a0d0e21e | 2220 | |
b28d0864 | 2221 | if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */ |
6b88bc9c | 2222 | croak("Can't stat script \"%s\"",PL_origfilename); |
b28d0864 | 2223 | if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 | 2224 | I32 len; |
2d8e6c8d | 2225 | STRLEN n_a; |
13281fa4 | 2226 | |
a687059c | 2227 | #ifdef IAMSUID |
fe14fcc3 | 2228 | #ifndef HAS_SETREUID |
a687059c LW |
2229 | /* On this access check to make sure the directories are readable, |
2230 | * there is actually a small window that the user could use to make | |
2231 | * filename point to an accessible directory. So there is a faint | |
2232 | * chance that someone could execute a setuid script down in a | |
2233 | * non-accessible directory. I don't know what to do about that. | |
2234 | * But I don't think it's too important. The manual lies when | |
2235 | * it says access() is useful in setuid programs. | |
2236 | */ | |
6b88bc9c | 2237 | if (PerlLIO_access(SvPVX(GvSV(PL_curcop->cop_filegv)),1)) /*double check*/ |
463ee0b2 | 2238 | croak("Permission denied"); |
a687059c LW |
2239 | #else |
2240 | /* If we can swap euid and uid, then we can determine access rights | |
2241 | * with a simple stat of the file, and then compare device and | |
2242 | * inode to make sure we did stat() on the same file we opened. | |
2243 | * Then we just have to make sure he or she can execute it. | |
2244 | */ | |
2245 | { | |
2246 | struct stat tmpstatbuf; | |
2247 | ||
85e6fe83 LW |
2248 | if ( |
2249 | #ifdef HAS_SETREUID | |
b28d0864 | 2250 | setreuid(PL_euid,PL_uid) < 0 |
a0d0e21e LW |
2251 | #else |
2252 | # if HAS_SETRESUID | |
b28d0864 | 2253 | setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0 |
a0d0e21e | 2254 | # endif |
85e6fe83 | 2255 | #endif |
b28d0864 | 2256 | || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid) |
463ee0b2 | 2257 | croak("Can't swap uid and euid"); /* really paranoid */ |
6b88bc9c | 2258 | if (PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&tmpstatbuf) < 0) |
463ee0b2 | 2259 | croak("Permission denied"); /* testing full pathname here */ |
2bb3463c | 2260 | #if defined(IAMSUID) && !defined(NO_NOSUID_CHECK) |
104d25b7 JH |
2261 | if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp))) |
2262 | croak("Permission denied"); | |
2263 | #endif | |
b28d0864 NIS |
2264 | if (tmpstatbuf.st_dev != PL_statbuf.st_dev || |
2265 | tmpstatbuf.st_ino != PL_statbuf.st_ino) { | |
2266 | (void)PerlIO_close(PL_rsfp); | |
2267 | if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */ | |
2268 | PerlIO_printf(PL_rsfp, | |
ff0cee69 | 2269 | "User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\ |
2270 | (Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n", | |
b28d0864 NIS |
2271 | (long)PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino, |
2272 | (long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino, | |
6b88bc9c | 2273 | SvPVX(GvSV(PL_curcop->cop_filegv)), |
b28d0864 NIS |
2274 | (long)PL_statbuf.st_uid, (long)PL_statbuf.st_gid); |
2275 | (void)PerlProc_pclose(PL_rsfp); | |
a687059c | 2276 | } |
463ee0b2 | 2277 | croak("Permission denied\n"); |
a687059c | 2278 | } |
85e6fe83 LW |
2279 | if ( |
2280 | #ifdef HAS_SETREUID | |
b28d0864 | 2281 | setreuid(PL_uid,PL_euid) < 0 |
a0d0e21e LW |
2282 | #else |
2283 | # if defined(HAS_SETRESUID) | |
b28d0864 | 2284 | setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0 |
a0d0e21e | 2285 | # endif |
85e6fe83 | 2286 | #endif |
b28d0864 | 2287 | || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid) |
463ee0b2 | 2288 | croak("Can't reswap uid and euid"); |
b28d0864 | 2289 | if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */ |
463ee0b2 | 2290 | croak("Permission denied\n"); |
a687059c | 2291 | } |
fe14fcc3 | 2292 | #endif /* HAS_SETREUID */ |
a687059c LW |
2293 | #endif /* IAMSUID */ |
2294 | ||
b28d0864 | 2295 | if (!S_ISREG(PL_statbuf.st_mode)) |
463ee0b2 | 2296 | croak("Permission denied"); |
b28d0864 | 2297 | if (PL_statbuf.st_mode & S_IWOTH) |
463ee0b2 | 2298 | croak("Setuid/gid script is writable by world"); |
6b88bc9c GS |
2299 | PL_doswitches = FALSE; /* -s is insecure in suid */ |
2300 | PL_curcop->cop_line++; | |
2301 | if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch || | |
2d8e6c8d | 2302 | strnNE(SvPV(PL_linestr,n_a),"#!",2) ) /* required even on Sys V */ |
463ee0b2 | 2303 | croak("No #! line"); |
2d8e6c8d | 2304 | s = SvPV(PL_linestr,n_a)+2; |
663a0e37 | 2305 | if (*s == ' ') s++; |
45d8adaa | 2306 | while (!isSPACE(*s)) s++; |
2d8e6c8d | 2307 | for (s2 = s; (s2 > SvPV(PL_linestr,n_a)+2 && |
6e72f9df | 2308 | (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ; |
2309 | if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ | |
463ee0b2 | 2310 | croak("Not a perl script"); |
a687059c | 2311 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 LW |
2312 | /* |
2313 | * #! arg must be what we saw above. They can invoke it by | |
2314 | * mentioning suidperl explicitly, but they may not add any strange | |
2315 | * arguments beyond what #! says if they do invoke suidperl that way. | |
2316 | */ | |
2317 | len = strlen(validarg); | |
2318 | if (strEQ(validarg," PHOOEY ") || | |
45d8adaa | 2319 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
463ee0b2 | 2320 | croak("Args must match #! line"); |
a687059c LW |
2321 | |
2322 | #ifndef IAMSUID | |
b28d0864 NIS |
2323 | if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) && |
2324 | PL_euid == PL_statbuf.st_uid) | |
2325 | if (!PL_do_undump) | |
463ee0b2 | 2326 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
2327 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
2328 | #endif /* IAMSUID */ | |
13281fa4 | 2329 | |
b28d0864 NIS |
2330 | if (PL_euid) { /* oops, we're not the setuid root perl */ |
2331 | (void)PerlIO_close(PL_rsfp); | |
13281fa4 | 2332 | #ifndef IAMSUID |
46fc3d4c | 2333 | /* try again */ |
6b88bc9c | 2334 | PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv); |
13281fa4 | 2335 | #endif |
463ee0b2 | 2336 | croak("Can't do setuid\n"); |
13281fa4 LW |
2337 | } |
2338 | ||
b28d0864 | 2339 | if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) { |
fe14fcc3 | 2340 | #ifdef HAS_SETEGID |
b28d0864 | 2341 | (void)setegid(PL_statbuf.st_gid); |
a687059c | 2342 | #else |
fe14fcc3 | 2343 | #ifdef HAS_SETREGID |
b28d0864 | 2344 | (void)setregid((Gid_t)-1,PL_statbuf.st_gid); |
85e6fe83 LW |
2345 | #else |
2346 | #ifdef HAS_SETRESGID | |
b28d0864 | 2347 | (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1); |
a687059c | 2348 | #else |
b28d0864 | 2349 | PerlProc_setgid(PL_statbuf.st_gid); |
a687059c LW |
2350 | #endif |
2351 | #endif | |
85e6fe83 | 2352 | #endif |
b28d0864 | 2353 | if (PerlProc_getegid() != PL_statbuf.st_gid) |
463ee0b2 | 2354 | croak("Can't do setegid!\n"); |
83025b21 | 2355 | } |
b28d0864 NIS |
2356 | if (PL_statbuf.st_mode & S_ISUID) { |
2357 | if (PL_statbuf.st_uid != PL_euid) | |
fe14fcc3 | 2358 | #ifdef HAS_SETEUID |
b28d0864 | 2359 | (void)seteuid(PL_statbuf.st_uid); /* all that for this */ |
a687059c | 2360 | #else |
fe14fcc3 | 2361 | #ifdef HAS_SETREUID |
b28d0864 | 2362 | (void)setreuid((Uid_t)-1,PL_statbuf.st_uid); |
85e6fe83 LW |
2363 | #else |
2364 | #ifdef HAS_SETRESUID | |
b28d0864 | 2365 | (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1); |
a687059c | 2366 | #else |
b28d0864 | 2367 | PerlProc_setuid(PL_statbuf.st_uid); |
a687059c LW |
2368 | #endif |
2369 | #endif | |
85e6fe83 | 2370 | #endif |
b28d0864 | 2371 | if (PerlProc_geteuid() != PL_statbuf.st_uid) |
463ee0b2 | 2372 | croak("Can't do seteuid!\n"); |
a687059c | 2373 | } |
b28d0864 | 2374 | else if (PL_uid) { /* oops, mustn't run as root */ |
fe14fcc3 | 2375 | #ifdef HAS_SETEUID |
b28d0864 | 2376 | (void)seteuid((Uid_t)PL_uid); |
a687059c | 2377 | #else |
fe14fcc3 | 2378 | #ifdef HAS_SETREUID |
b28d0864 | 2379 | (void)setreuid((Uid_t)-1,(Uid_t)PL_uid); |
a687059c | 2380 | #else |
85e6fe83 | 2381 | #ifdef HAS_SETRESUID |
b28d0864 | 2382 | (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1); |
85e6fe83 | 2383 | #else |
b28d0864 | 2384 | PerlProc_setuid((Uid_t)PL_uid); |
85e6fe83 | 2385 | #endif |
a687059c LW |
2386 | #endif |
2387 | #endif | |
b28d0864 | 2388 | if (PerlProc_geteuid() != PL_uid) |
463ee0b2 | 2389 | croak("Can't do seteuid!\n"); |
83025b21 | 2390 | } |
748a9306 | 2391 | init_ids(); |
b28d0864 | 2392 | if (!cando(S_IXUSR,TRUE,&PL_statbuf)) |
463ee0b2 | 2393 | croak("Permission denied\n"); /* they can't do this */ |
13281fa4 LW |
2394 | } |
2395 | #ifdef IAMSUID | |
6b88bc9c | 2396 | else if (PL_preprocess) |
463ee0b2 | 2397 | croak("-P not allowed for setuid/setgid script\n"); |
96436eeb | 2398 | else if (fdscript >= 0) |
2399 | croak("fd script not allowed in suidperl\n"); | |
13281fa4 | 2400 | else |
463ee0b2 | 2401 | croak("Script is not setuid/setgid in suidperl\n"); |
96436eeb | 2402 | |
2403 | /* We absolutely must clear out any saved ids here, so we */ | |
2404 | /* exec the real perl, substituting fd script for scriptname. */ | |
2405 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ | |
b28d0864 NIS |
2406 | PerlIO_rewind(PL_rsfp); |
2407 | PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
6b88bc9c GS |
2408 | for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; |
2409 | if (!PL_origargv[which]) | |
96436eeb | 2410 | croak("Permission denied"); |
6b88bc9c GS |
2411 | PL_origargv[which] = savepv(form("/dev/fd/%d/%s", |
2412 | PerlIO_fileno(PL_rsfp), PL_origargv[which])); | |
96436eeb | 2413 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
b28d0864 | 2414 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb | 2415 | #endif |
6b88bc9c | 2416 | PerlProc_execv(form("%s/perl%s", BIN_EXP, PL_patchlevel), PL_origargv);/* try again */ |
96436eeb | 2417 | croak("Can't do setuid\n"); |
13281fa4 | 2418 | #endif /* IAMSUID */ |
a687059c | 2419 | #else /* !DOSUID */ |
3280af22 | 2420 | if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */ |
a687059c | 2421 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW |
96827780 | 2422 | dTHR; |
b28d0864 NIS |
2423 | PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */ |
2424 | if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID) | |
a687059c | 2425 | || |
b28d0864 | 2426 | (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID) |
a687059c | 2427 | ) |
b28d0864 | 2428 | if (!PL_do_undump) |
463ee0b2 | 2429 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
2430 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
2431 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ | |
2432 | /* not set-id, must be wrapped */ | |
a687059c | 2433 | } |
13281fa4 | 2434 | #endif /* DOSUID */ |
79072805 | 2435 | } |
13281fa4 | 2436 | |
76e3520e | 2437 | STATIC void |
8ac85365 | 2438 | find_beginning(void) |
79072805 | 2439 | { |
6e72f9df | 2440 | register char *s, *s2; |
33b78306 LW |
2441 | |
2442 | /* skip forward in input to the real script? */ | |
2443 | ||
bbce6d69 | 2444 | forbid_setid("-x"); |
3280af22 NIS |
2445 | while (PL_doextract) { |
2446 | if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch) | |
463ee0b2 | 2447 | croak("No Perl script found in input\n"); |
6e72f9df | 2448 | if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) { |
3280af22 NIS |
2449 | PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */ |
2450 | PL_doextract = FALSE; | |
6e72f9df | 2451 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
2452 | s2 = s; | |
2453 | while (*s == ' ' || *s == '\t') s++; | |
2454 | if (*s++ == '-') { | |
2455 | while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--; | |
2456 | if (strnEQ(s2-4,"perl",4)) | |
2457 | /*SUPPRESS 530*/ | |
2458 | while (s = moreswitches(s)) ; | |
33b78306 | 2459 | } |
3280af22 NIS |
2460 | if (PL_cddir && PerlDir_chdir(PL_cddir) < 0) |
2461 | croak("Can't chdir to %s",PL_cddir); | |
83025b21 LW |
2462 | } |
2463 | } | |
2464 | } | |
2465 | ||
afe37c7d | 2466 | |
76e3520e | 2467 | STATIC void |
8ac85365 | 2468 | init_ids(void) |
352d5a3a | 2469 | { |
3280af22 NIS |
2470 | PL_uid = (int)PerlProc_getuid(); |
2471 | PL_euid = (int)PerlProc_geteuid(); | |
2472 | PL_gid = (int)PerlProc_getgid(); | |
2473 | PL_egid = (int)PerlProc_getegid(); | |
748a9306 | 2474 | #ifdef VMS |
b28d0864 NIS |
2475 | PL_uid |= PL_gid << 16; |
2476 | PL_euid |= PL_egid << 16; | |
748a9306 | 2477 | #endif |
3280af22 | 2478 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
748a9306 | 2479 | } |
79072805 | 2480 | |
76e3520e | 2481 | STATIC void |
8ac85365 | 2482 | forbid_setid(char *s) |
bbce6d69 | 2483 | { |
3280af22 | 2484 | if (PL_euid != PL_uid) |
bbce6d69 | 2485 | croak("No %s allowed while running setuid", s); |
3280af22 | 2486 | if (PL_egid != PL_gid) |
bbce6d69 | 2487 | croak("No %s allowed while running setgid", s); |
2488 | } | |
2489 | ||
76e3520e | 2490 | STATIC void |
8ac85365 | 2491 | init_debugger(void) |
748a9306 | 2492 | { |
11343788 | 2493 | dTHR; |
3280af22 NIS |
2494 | PL_curstash = PL_debstash; |
2495 | PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); | |
2496 | AvREAL_off(PL_dbargs); | |
2497 | PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); | |
2498 | PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); | |
2499 | PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); | |
2500 | PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); | |
2501 | sv_setiv(PL_DBsingle, 0); | |
2502 | PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); | |
2503 | sv_setiv(PL_DBtrace, 0); | |
2504 | PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); | |
2505 | sv_setiv(PL_DBsignal, 0); | |
2506 | PL_curstash = PL_defstash; | |
352d5a3a LW |
2507 | } |
2508 | ||
2ce36478 SM |
2509 | #ifndef STRESS_REALLOC |
2510 | #define REASONABLE(size) (size) | |
2511 | #else | |
2512 | #define REASONABLE(size) (1) /* unreasonable */ | |
2513 | #endif | |
2514 | ||
11343788 | 2515 | void |
8ac85365 | 2516 | init_stacks(ARGSproto) |
79072805 | 2517 | { |
e336de0d | 2518 | /* start with 128-item stack and 8K cxstack */ |
3280af22 | 2519 | PL_curstackinfo = new_stackinfo(REASONABLE(128), |
e336de0d | 2520 | REASONABLE(8192/sizeof(PERL_CONTEXT) - 1)); |
3280af22 NIS |
2521 | PL_curstackinfo->si_type = PERLSI_MAIN; |
2522 | PL_curstack = PL_curstackinfo->si_stack; | |
2523 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ | |
79072805 | 2524 | |
3280af22 NIS |
2525 | PL_stack_base = AvARRAY(PL_curstack); |
2526 | PL_stack_sp = PL_stack_base; | |
2527 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
8990e307 | 2528 | |
3280af22 NIS |
2529 | New(50,PL_tmps_stack,REASONABLE(128),SV*); |
2530 | PL_tmps_floor = -1; | |
2531 | PL_tmps_ix = -1; | |
2532 | PL_tmps_max = REASONABLE(128); | |
8990e307 | 2533 | |
3280af22 NIS |
2534 | New(54,PL_markstack,REASONABLE(32),I32); |
2535 | PL_markstack_ptr = PL_markstack; | |
2536 | PL_markstack_max = PL_markstack + REASONABLE(32); | |
79072805 | 2537 | |
e336de0d GS |
2538 | SET_MARKBASE; |
2539 | ||
3280af22 NIS |
2540 | New(54,PL_scopestack,REASONABLE(32),I32); |
2541 | PL_scopestack_ix = 0; | |
2542 | PL_scopestack_max = REASONABLE(32); | |
79072805 | 2543 | |
3280af22 NIS |
2544 | New(54,PL_savestack,REASONABLE(128),ANY); |
2545 | PL_savestack_ix = 0; | |
2546 | PL_savestack_max = REASONABLE(128); | |
79072805 | 2547 | |
3280af22 NIS |
2548 | New(54,PL_retstack,REASONABLE(16),OP*); |
2549 | PL_retstack_ix = 0; | |
2550 | PL_retstack_max = REASONABLE(16); | |
378cc40b | 2551 | } |
33b78306 | 2552 | |
2ce36478 SM |
2553 | #undef REASONABLE |
2554 | ||
76e3520e | 2555 | STATIC void |
8ac85365 | 2556 | nuke_stacks(void) |
6e72f9df | 2557 | { |
e858de61 | 2558 | dTHR; |
3280af22 NIS |
2559 | while (PL_curstackinfo->si_next) |
2560 | PL_curstackinfo = PL_curstackinfo->si_next; | |
2561 | while (PL_curstackinfo) { | |
2562 | PERL_SI *p = PL_curstackinfo->si_prev; | |
bac4b2ad | 2563 | /* curstackinfo->si_stack got nuked by sv_free_arenas() */ |
3280af22 NIS |
2564 | Safefree(PL_curstackinfo->si_cxstack); |
2565 | Safefree(PL_curstackinfo); | |
2566 | PL_curstackinfo = p; | |
e336de0d | 2567 | } |
3280af22 NIS |
2568 | Safefree(PL_tmps_stack); |
2569 | Safefree(PL_markstack); | |
2570 | Safefree(PL_scopestack); | |
2571 | Safefree(PL_savestack); | |
2572 | Safefree(PL_retstack); | |
5f05dabc | 2573 | DEBUG( { |
3280af22 NIS |
2574 | Safefree(PL_debname); |
2575 | Safefree(PL_debdelim); | |
5f05dabc | 2576 | } ) |
378cc40b | 2577 | } |
33b78306 | 2578 | |
76e3520e | 2579 | #ifndef PERL_OBJECT |
760ac839 | 2580 | static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
76e3520e | 2581 | #endif |
7aa04957 | 2582 | |
76e3520e | 2583 | STATIC void |
8ac85365 | 2584 | init_lexer(void) |
8990e307 | 2585 | { |
76e3520e GS |
2586 | #ifdef PERL_OBJECT |
2587 | PerlIO *tmpfp; | |
2588 | #endif | |
3280af22 NIS |
2589 | tmpfp = PL_rsfp; |
2590 | PL_rsfp = Nullfp; | |
2591 | lex_start(PL_linestr); | |
2592 | PL_rsfp = tmpfp; | |
2593 | PL_subname = newSVpv("main",4); | |
8990e307 LW |
2594 | } |
2595 | ||
76e3520e | 2596 | STATIC void |
8ac85365 | 2597 | init_predump_symbols(void) |
45d8adaa | 2598 | { |
11343788 | 2599 | dTHR; |
93a17b20 | 2600 | GV *tmpgv; |
a0d0e21e | 2601 | GV *othergv; |
79072805 | 2602 | |
e1c148c2 | 2603 | sv_setpvn(perl_get_sv("\"", TRUE), " ", 1); |
3280af22 NIS |
2604 | PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
2605 | GvMULTI_on(PL_stdingv); | |
2606 | IoIFP(GvIOp(PL_stdingv)) = PerlIO_stdin(); | |
adbc6bb1 | 2607 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 | 2608 | GvMULTI_on(tmpgv); |
3280af22 | 2609 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_stdingv)); |
79072805 | 2610 | |
85e6fe83 | 2611 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 | 2612 | GvMULTI_on(tmpgv); |
760ac839 | 2613 | IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout(); |
4633a7c4 | 2614 | setdefout(tmpgv); |
adbc6bb1 | 2615 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 | 2616 | GvMULTI_on(tmpgv); |
3280af22 | 2617 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_defoutgv)); |
79072805 | 2618 | |
a0d0e21e | 2619 | othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
a5f75d66 | 2620 | GvMULTI_on(othergv); |
760ac839 | 2621 | IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr(); |
adbc6bb1 | 2622 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 | 2623 | GvMULTI_on(tmpgv); |
a0d0e21e | 2624 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv)); |
79072805 | 2625 | |
3280af22 | 2626 | PL_statname = NEWSV(66,0); /* last filename we did stat on */ |
ab821d7f | 2627 | |
3280af22 NIS |
2628 | if (!PL_osname) |
2629 | PL_osname = savepv(OSNAME); | |
79072805 | 2630 | } |
33b78306 | 2631 | |
76e3520e | 2632 | STATIC void |
8ac85365 | 2633 | init_postdump_symbols(register int argc, register char **argv, register char **env) |
33b78306 | 2634 | { |
a863c7d1 | 2635 | dTHR; |
79072805 LW |
2636 | char *s; |
2637 | SV *sv; | |
2638 | GV* tmpgv; | |
fe14fcc3 | 2639 | |
79072805 | 2640 | argc--,argv++; /* skip name of script */ |
3280af22 | 2641 | if (PL_doswitches) { |
79072805 LW |
2642 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
2643 | if (!argv[0][1]) | |
2644 | break; | |
2645 | if (argv[0][1] == '-') { | |
2646 | argc--,argv++; | |
2647 | break; | |
2648 | } | |
93a17b20 | 2649 | if (s = strchr(argv[0], '=')) { |
79072805 | 2650 | *s++ = '\0'; |
85e6fe83 | 2651 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 LW |
2652 | } |
2653 | else | |
85e6fe83 | 2654 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 | 2655 | } |
79072805 | 2656 | } |
3280af22 NIS |
2657 | PL_toptarget = NEWSV(0,0); |
2658 | sv_upgrade(PL_toptarget, SVt_PVFM); | |
2659 | sv_setpvn(PL_toptarget, "", 0); | |
2660 | PL_bodytarget = NEWSV(0,0); | |
2661 | sv_upgrade(PL_bodytarget, SVt_PVFM); | |
2662 | sv_setpvn(PL_bodytarget, "", 0); | |
2663 | PL_formtarget = PL_bodytarget; | |
79072805 | 2664 | |
bbce6d69 | 2665 | TAINT; |
85e6fe83 | 2666 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
3280af22 | 2667 | sv_setpv(GvSV(tmpgv),PL_origfilename); |
79072805 LW |
2668 | magicname("0", "0", 1); |
2669 | } | |
85e6fe83 | 2670 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
3280af22 NIS |
2671 | sv_setpv(GvSV(tmpgv),PL_origargv[0]); |
2672 | if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { | |
2673 | GvMULTI_on(PL_argvgv); | |
2674 | (void)gv_AVadd(PL_argvgv); | |
2675 | av_clear(GvAVn(PL_argvgv)); | |
79072805 | 2676 | for (; argc > 0; argc--,argv++) { |
3280af22 | 2677 | av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0)); |
79072805 LW |
2678 | } |
2679 | } | |
3280af22 | 2680 | if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 | 2681 | HV *hv; |
3280af22 NIS |
2682 | GvMULTI_on(PL_envgv); |
2683 | hv = GvHVn(PL_envgv); | |
2684 | hv_magic(hv, PL_envgv, 'E'); | |
a0d0e21e | 2685 | #ifndef VMS /* VMS doesn't have environ array */ |
4633a7c4 LW |
2686 | /* Note that if the supplied env parameter is actually a copy |
2687 | of the global environ then it may now point to free'd memory | |
2688 | if the environment has been modified since. To avoid this | |
2689 | problem we treat env==NULL as meaning 'use the default' | |
2690 | */ | |
2691 | if (!env) | |
2692 | env = environ; | |
5aabfad6 | 2693 | if (env != environ) |
79072805 LW |
2694 | environ[0] = Nullch; |
2695 | for (; *env; env++) { | |
93a17b20 | 2696 | if (!(s = strchr(*env,'='))) |
79072805 LW |
2697 | continue; |
2698 | *s++ = '\0'; | |
60ce6247 | 2699 | #if defined(MSDOS) |
137443ea | 2700 | (void)strupr(*env); |
2701 | #endif | |
79072805 LW |
2702 | sv = newSVpv(s--,0); |
2703 | (void)hv_store(hv, *env, s - *env, sv, 0); | |
2704 | *s = '='; | |
3e3baf6d TB |
2705 | #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV) |
2706 | /* Sins of the RTL. See note in my_setenv(). */ | |
76e3520e | 2707 | (void)PerlEnv_putenv(savepv(*env)); |
3e3baf6d | 2708 | #endif |
fe14fcc3 | 2709 | } |
4550b24a | 2710 | #endif |
2711 | #ifdef DYNAMIC_ENV_FETCH | |
2712 | HvNAME(hv) = savepv(ENV_HV_NAME); | |
2713 | #endif | |
79072805 | 2714 | } |
bbce6d69 | 2715 | TAINT_NOT; |
85e6fe83 | 2716 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
1e422769 | 2717 | sv_setiv(GvSV(tmpgv), (IV)getpid()); |
33b78306 | 2718 | } |
34de22dd | 2719 | |
76e3520e | 2720 | STATIC void |
8ac85365 | 2721 | init_perllib(void) |
34de22dd | 2722 | { |
85e6fe83 | 2723 | char *s; |
3280af22 | 2724 | if (!PL_tainting) { |
552a7a9b | 2725 | #ifndef VMS |
76e3520e | 2726 | s = PerlEnv_getenv("PERL5LIB"); |
85e6fe83 | 2727 | if (s) |
774d564b | 2728 | incpush(s, TRUE); |
85e6fe83 | 2729 | else |
76e3520e | 2730 | incpush(PerlEnv_getenv("PERLLIB"), FALSE); |
552a7a9b | 2731 | #else /* VMS */ |
2732 | /* Treat PERL5?LIB as a possible search list logical name -- the | |
2733 | * "natural" VMS idiom for a Unix path string. We allow each | |
2734 | * element to be a set of |-separated directories for compatibility. | |
2735 | */ | |
2736 | char buf[256]; | |
2737 | int idx = 0; | |
2738 | if (my_trnlnm("PERL5LIB",buf,0)) | |
774d564b | 2739 | do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx)); |
552a7a9b | 2740 | else |
774d564b | 2741 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE); |
552a7a9b | 2742 | #endif /* VMS */ |
85e6fe83 | 2743 | } |
34de22dd | 2744 | |
c90c0ff4 | 2745 | /* Use the ~-expanded versions of APPLLIB (undocumented), |
dfe9444c | 2746 | ARCHLIB PRIVLIB SITEARCH and SITELIB |
df5cef82 | 2747 | */ |
4633a7c4 | 2748 | #ifdef APPLLIB_EXP |
43051805 | 2749 | incpush(APPLLIB_EXP, TRUE); |
16d20bd9 | 2750 | #endif |
4633a7c4 | 2751 | |
fed7345c | 2752 | #ifdef ARCHLIB_EXP |
774d564b | 2753 | incpush(ARCHLIB_EXP, FALSE); |
a0d0e21e | 2754 | #endif |
fed7345c AD |
2755 | #ifndef PRIVLIB_EXP |
2756 | #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" | |
34de22dd | 2757 | #endif |
00dc2f4f GS |
2758 | #if defined(WIN32) |
2759 | incpush(PRIVLIB_EXP, TRUE); | |
2760 | #else | |
774d564b | 2761 | incpush(PRIVLIB_EXP, FALSE); |
00dc2f4f | 2762 | #endif |
4633a7c4 LW |
2763 | |
2764 | #ifdef SITEARCH_EXP | |
774d564b | 2765 | incpush(SITEARCH_EXP, FALSE); |
4633a7c4 LW |
2766 | #endif |
2767 | #ifdef SITELIB_EXP | |
00dc2f4f GS |
2768 | #if defined(WIN32) |
2769 | incpush(SITELIB_EXP, TRUE); | |
2770 | #else | |
774d564b | 2771 | incpush(SITELIB_EXP, FALSE); |
4633a7c4 | 2772 | #endif |
00dc2f4f | 2773 | #endif |
3280af22 | 2774 | if (!PL_tainting) |
774d564b | 2775 | incpush(".", FALSE); |
2776 | } | |
2777 | ||
2778 | #if defined(DOSISH) | |
2779 | # define PERLLIB_SEP ';' | |
2780 | #else | |
2781 | # if defined(VMS) | |
2782 | # define PERLLIB_SEP '|' | |
2783 | # else | |
2784 | # define PERLLIB_SEP ':' | |
2785 | # endif | |
2786 | #endif | |
2787 | #ifndef PERLLIB_MANGLE | |
2788 | # define PERLLIB_MANGLE(s,n) (s) | |
2789 | #endif | |
2790 | ||
76e3520e | 2791 | STATIC void |
8ac85365 | 2792 | incpush(char *p, int addsubdirs) |
774d564b | 2793 | { |
2794 | SV *subdir = Nullsv; | |
774d564b | 2795 | |
2796 | if (!p) | |
2797 | return; | |
2798 | ||
2799 | if (addsubdirs) { | |
00db4c45 | 2800 | subdir = sv_newmortal(); |
3280af22 NIS |
2801 | if (!PL_archpat_auto) { |
2802 | STRLEN len = (sizeof(ARCHNAME) + strlen(PL_patchlevel) | |
774d564b | 2803 | + sizeof("//auto")); |
3280af22 NIS |
2804 | New(55, PL_archpat_auto, len, char); |
2805 | sprintf(PL_archpat_auto, "/%s/%s/auto", ARCHNAME, PL_patchlevel); | |
aa689395 | 2806 | #ifdef VMS |
2807 | for (len = sizeof(ARCHNAME) + 2; | |
6b88bc9c GS |
2808 | PL_archpat_auto[len] != '\0' && PL_archpat_auto[len] != '/'; len++) |
2809 | if (PL_archpat_auto[len] == '.') PL_archpat_auto[len] = '_'; | |
aa689395 | 2810 | #endif |
774d564b | 2811 | } |
2812 | } | |
2813 | ||
2814 | /* Break at all separators */ | |
2815 | while (p && *p) { | |
8c52afec | 2816 | SV *libdir = NEWSV(55,0); |
774d564b | 2817 | char *s; |
2818 | ||
2819 | /* skip any consecutive separators */ | |
2820 | while ( *p == PERLLIB_SEP ) { | |
2821 | /* Uncomment the next line for PATH semantics */ | |
6b88bc9c | 2822 | /* av_push(GvAVn(PL_incgv), newSVpv(".", 1)); */ |
774d564b | 2823 | p++; |
2824 | } | |
2825 | ||
2826 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { | |
2827 | sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)), | |
2828 | (STRLEN)(s - p)); | |
2829 | p = s + 1; | |
2830 | } | |
2831 | else { | |
2832 | sv_setpv(libdir, PERLLIB_MANGLE(p, 0)); | |
2833 | p = Nullch; /* break out */ | |
2834 | } | |
2835 | ||
2836 | /* | |
2837 | * BEFORE pushing libdir onto @INC we may first push version- and | |
2838 | * archname-specific sub-directories. | |
2839 | */ | |
2840 | if (addsubdirs) { | |
2841 | struct stat tmpstatbuf; | |
aa689395 | 2842 | #ifdef VMS |
2843 | char *unix; | |
2844 | STRLEN len; | |
774d564b | 2845 | |
2d8e6c8d | 2846 | if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) { |
aa689395 | 2847 | len = strlen(unix); |
2848 | while (unix[len-1] == '/') len--; /* Cosmetic */ | |
2849 | sv_usepvn(libdir,unix,len); | |
2850 | } | |
2851 | else | |
2852 | PerlIO_printf(PerlIO_stderr(), | |
2853 | "Failed to unixify @INC element \"%s\"\n", | |
2d8e6c8d | 2854 | SvPV(libdir,len)); |
aa689395 | 2855 | #endif |
4fdae800 | 2856 | /* .../archname/version if -d .../archname/version/auto */ |
774d564b | 2857 | sv_setsv(subdir, libdir); |
3280af22 | 2858 | sv_catpv(subdir, PL_archpat_auto); |
76e3520e | 2859 | if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 && |
774d564b | 2860 | S_ISDIR(tmpstatbuf.st_mode)) |
3280af22 | 2861 | av_push(GvAVn(PL_incgv), |
774d564b | 2862 | newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto")); |
2863 | ||
4fdae800 | 2864 | /* .../archname if -d .../archname/auto */ |
774d564b | 2865 | sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME), |
3280af22 | 2866 | strlen(PL_patchlevel) + 1, "", 0); |
76e3520e | 2867 | if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 && |
774d564b | 2868 | S_ISDIR(tmpstatbuf.st_mode)) |
3280af22 | 2869 | av_push(GvAVn(PL_incgv), |
774d564b | 2870 | newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto")); |
2871 | } | |
2872 | ||
2873 | /* finally push this lib directory on the end of @INC */ | |
3280af22 | 2874 | av_push(GvAVn(PL_incgv), libdir); |
774d564b | 2875 | } |
34de22dd | 2876 | } |
93a17b20 | 2877 | |
199100c8 | 2878 | #ifdef USE_THREADS |
76e3520e | 2879 | STATIC struct perl_thread * |
199100c8 MB |
2880 | init_main_thread() |
2881 | { | |
52e1cb5e | 2882 | struct perl_thread *thr; |
199100c8 MB |
2883 | XPV *xpv; |
2884 | ||
52e1cb5e | 2885 | Newz(53, thr, 1, struct perl_thread); |
533c011a | 2886 | PL_curcop = &PL_compiling; |
199100c8 | 2887 | thr->cvcache = newHV(); |
54b9620d | 2888 | thr->threadsv = newAV(); |
940cb80d | 2889 | /* thr->threadsvp is set when find_threadsv is called */ |
199100c8 | 2890 | thr->specific = newAV(); |
38a03e6e | 2891 | thr->errhv = newHV(); |
199100c8 MB |
2892 | thr->flags = THRf_R_JOINABLE; |
2893 | MUTEX_INIT(&thr->mutex); | |
2894 | /* Handcraft thrsv similarly to mess_sv */ | |
533c011a | 2895 | New(53, PL_thrsv, 1, SV); |
199100c8 | 2896 | Newz(53, xpv, 1, XPV); |
533c011a NIS |
2897 | SvFLAGS(PL_thrsv) = SVt_PV; |
2898 | SvANY(PL_thrsv) = (void*)xpv; | |
2899 | SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */ | |
2900 | SvPVX(PL_thrsv) = (char*)thr; | |
2901 | SvCUR_set(PL_thrsv, sizeof(thr)); | |
2902 | SvLEN_set(PL_thrsv, sizeof(thr)); | |
2903 | *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */ | |
2904 | thr->oursv = PL_thrsv; | |
2905 | PL_chopset = " \n-"; | |
3967c732 | 2906 | PL_dumpindent = 4; |
533c011a NIS |
2907 | |
2908 | MUTEX_LOCK(&PL_threads_mutex); | |
2909 | PL_nthreads++; | |
199100c8 MB |
2910 | thr->tid = 0; |
2911 | thr->next = thr; | |
2912 | thr->prev = thr; | |
533c011a | 2913 | MUTEX_UNLOCK(&PL_threads_mutex); |
199100c8 | 2914 | |
4b026b9e GS |
2915 | #ifdef HAVE_THREAD_INTERN |
2916 | init_thread_intern(thr); | |
235db74f GS |
2917 | #endif |
2918 | ||
2919 | #ifdef SET_THREAD_SELF | |
2920 | SET_THREAD_SELF(thr); | |
199100c8 MB |
2921 | #else |
2922 | thr->self = pthread_self(); | |
235db74f | 2923 | #endif /* SET_THREAD_SELF */ |
199100c8 MB |
2924 | SET_THR(thr); |
2925 | ||
2926 | /* | |
2927 | * These must come after the SET_THR because sv_setpvn does | |
2928 | * SvTAINT and the taint fields require dTHR. | |
2929 | */ | |
533c011a NIS |
2930 | PL_toptarget = NEWSV(0,0); |
2931 | sv_upgrade(PL_toptarget, SVt_PVFM); | |
2932 | sv_setpvn(PL_toptarget, "", 0); | |
2933 | PL_bodytarget = NEWSV(0,0); | |
2934 | sv_upgrade(PL_bodytarget, SVt_PVFM); | |
2935 | sv_setpvn(PL_bodytarget, "", 0); | |
2936 | PL_formtarget = PL_bodytarget; | |
2faa37cc | 2937 | thr->errsv = newSVpv("", 0); |
78857c3c | 2938 | (void) find_threadsv("@"); /* Ensure $@ is initialised early */ |
5c0ca799 | 2939 | |
533c011a NIS |
2940 | PL_maxscream = -1; |
2941 | PL_regcompp = FUNC_NAME_TO_PTR(pregcomp); | |
2942 | PL_regexecp = FUNC_NAME_TO_PTR(regexec_flags); | |
2943 | PL_regindent = 0; | |
2944 | PL_reginterp_cnt = 0; | |
5c0ca799 | 2945 | |
199100c8 MB |
2946 | return thr; |
2947 | } | |
2948 | #endif /* USE_THREADS */ | |
2949 | ||
93a17b20 | 2950 | void |
76e3520e | 2951 | call_list(I32 oldscope, AV *paramList) |
93a17b20 | 2952 | { |
11343788 | 2953 | dTHR; |
3280af22 | 2954 | line_t oldline = PL_curcop->cop_line; |
22921e25 CS |
2955 | STRLEN len; |
2956 | dJMPENV; | |
6224f72b | 2957 | int ret; |
93a17b20 | 2958 | |
76e3520e GS |
2959 | while (AvFILL(paramList) >= 0) { |
2960 | CV *cv = (CV*)av_shift(paramList); | |
93a17b20 | 2961 | |
8990e307 | 2962 | SAVEFREESV(cv); |
a0d0e21e | 2963 | |
6224f72b GS |
2964 | JMPENV_PUSH(ret); |
2965 | switch (ret) { | |
2966 | case 0: { | |
38a03e6e | 2967 | SV* atsv = ERRSV; |
3280af22 | 2968 | PUSHMARK(PL_stack_sp); |
748a9306 | 2969 | perl_call_sv((SV*)cv, G_EVAL|G_DISCARD); |
12f917ad | 2970 | (void)SvPV(atsv, len); |
748a9306 | 2971 | if (len) { |
54310121 | 2972 | JMPENV_POP; |
3280af22 NIS |
2973 | PL_curcop = &PL_compiling; |
2974 | PL_curcop->cop_line = oldline; | |
2975 | if (paramList == PL_beginav) | |
12f917ad | 2976 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); |
748a9306 | 2977 | else |
12f917ad | 2978 | sv_catpv(atsv, "END failed--cleanup aborted"); |
3280af22 | 2979 | while (PL_scopestack_ix > oldscope) |
2ae324a7 | 2980 | LEAVE; |
12f917ad | 2981 | croak("%s", SvPVX(atsv)); |
748a9306 | 2982 | } |
a0d0e21e | 2983 | } |
85e6fe83 | 2984 | break; |
6224f72b | 2985 | case 1: |
f86702cc | 2986 | STATUS_ALL_FAILURE; |
85e6fe83 | 2987 | /* FALL THROUGH */ |
6224f72b | 2988 | case 2: |
85e6fe83 | 2989 | /* my_exit() was called */ |
3280af22 | 2990 | while (PL_scopestack_ix > oldscope) |
2ae324a7 | 2991 | LEAVE; |
84902520 | 2992 | FREETMPS; |
3280af22 NIS |
2993 | PL_curstash = PL_defstash; |
2994 | if (PL_endav) | |
2995 | call_list(oldscope, PL_endav); | |
54310121 | 2996 | JMPENV_POP; |
3280af22 NIS |
2997 | PL_curcop = &PL_compiling; |
2998 | PL_curcop->cop_line = oldline; | |
2999 | if (PL_statusvalue) { | |
3000 | if (paramList == PL_beginav) | |
a0d0e21e | 3001 | croak("BEGIN failed--compilation aborted"); |
85e6fe83 | 3002 | else |
a0d0e21e | 3003 | croak("END failed--cleanup aborted"); |
85e6fe83 | 3004 | } |
f86702cc | 3005 | my_exit_jump(); |
85e6fe83 | 3006 | /* NOTREACHED */ |
6224f72b | 3007 | case 3: |
3280af22 | 3008 | if (!PL_restartop) { |
760ac839 | 3009 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e | 3010 | FREETMPS; |
85e6fe83 LW |
3011 | break; |
3012 | } | |
54310121 | 3013 | JMPENV_POP; |
3280af22 NIS |
3014 | PL_curcop = &PL_compiling; |
3015 | PL_curcop->cop_line = oldline; | |
6224f72b | 3016 | JMPENV_JUMP(3); |
8990e307 | 3017 | } |
54310121 | 3018 | JMPENV_POP; |
93a17b20 | 3019 | } |
93a17b20 | 3020 | } |
93a17b20 | 3021 | |
f86702cc | 3022 | void |
8ac85365 | 3023 | my_exit(U32 status) |
f86702cc | 3024 | { |
5dc0d613 MB |
3025 | dTHR; |
3026 | ||
8b73bbec | 3027 | DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n", |
a863c7d1 | 3028 | thr, (unsigned long) status)); |
f86702cc | 3029 | switch (status) { |
3030 | case 0: | |
3031 | STATUS_ALL_SUCCESS; | |
3032 | break; | |
3033 | case 1: | |
3034 | STATUS_ALL_FAILURE; | |
3035 | break; | |
3036 | default: | |
3037 | STATUS_NATIVE_SET(status); | |
3038 | break; | |
3039 | } | |
3040 | my_exit_jump(); | |
3041 | } | |
3042 | ||
3043 | void | |
8ac85365 | 3044 | my_failure_exit(void) |
f86702cc | 3045 | { |
3046 | #ifdef VMS | |
3047 | if (vaxc$errno & 1) { | |
4fdae800 | 3048 | if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */ |
3049 | STATUS_NATIVE_SET(44); | |
f86702cc | 3050 | } |
3051 | else { | |
ff0cee69 | 3052 | if (!vaxc$errno && errno) /* unlikely */ |
4fdae800 | 3053 | STATUS_NATIVE_SET(44); |
f86702cc | 3054 | else |
4fdae800 | 3055 | STATUS_NATIVE_SET(vaxc$errno); |
f86702cc | 3056 | } |
3057 | #else | |
9b599b2a | 3058 | int exitstatus; |
f86702cc | 3059 | if (errno & 255) |
3060 | STATUS_POSIX_SET(errno); | |
9b599b2a GS |
3061 | else { |
3062 | exitstatus = STATUS_POSIX >> 8; | |
3063 | if (exitstatus & 255) | |
3064 | STATUS_POSIX_SET(exitstatus); | |
3065 | else | |
3066 | STATUS_POSIX_SET(255); | |
3067 | } | |
f86702cc | 3068 | #endif |
3069 | my_exit_jump(); | |
93a17b20 LW |
3070 | } |
3071 | ||
76e3520e | 3072 | STATIC void |
8ac85365 | 3073 | my_exit_jump(void) |
f86702cc | 3074 | { |
de616352 | 3075 | dTHR; |
c09156bb | 3076 | register PERL_CONTEXT *cx; |
f86702cc | 3077 | I32 gimme; |
3078 | SV **newsp; | |
3079 | ||
3280af22 NIS |
3080 | if (PL_e_script) { |
3081 | SvREFCNT_dec(PL_e_script); | |
3082 | PL_e_script = Nullsv; | |
f86702cc | 3083 | } |
3084 | ||
3280af22 | 3085 | POPSTACK_TO(PL_mainstack); |
f86702cc | 3086 | if (cxstack_ix >= 0) { |
3087 | if (cxstack_ix > 0) | |
3088 | dounwind(0); | |
3280af22 | 3089 | POPBLOCK(cx,PL_curpm); |
f86702cc | 3090 | LEAVE; |
3091 | } | |
ff0cee69 | 3092 | |
6224f72b | 3093 | JMPENV_JUMP(2); |
f86702cc | 3094 | } |
873ef191 | 3095 | |
7a5f8e82 DL |
3096 | #ifdef PERL_OBJECT |
3097 | #define NO_XSLOCKS | |
3098 | #endif /* PERL_OBJECT */ | |
873ef191 GS |
3099 | |
3100 | #include "XSUB.h" | |
3101 | ||
3102 | static I32 | |
6224f72b GS |
3103 | #ifdef PERL_OBJECT |
3104 | read_e_script(CPerlObj *pPerl, int idx, SV *buf_sv, int maxlen) | |
3105 | #else | |
3106 | read_e_script(int idx, SV *buf_sv, int maxlen) | |
3107 | #endif | |
873ef191 GS |
3108 | { |
3109 | char *p, *nl; | |
3280af22 | 3110 | p = SvPVX(PL_e_script); |
873ef191 | 3111 | nl = strchr(p, '\n'); |
3280af22 | 3112 | nl = (nl) ? nl+1 : SvEND(PL_e_script); |
7dfe3f66 PM |
3113 | if (nl-p == 0) { |
3114 | filter_del(read_e_script); | |
873ef191 | 3115 | return 0; |
7dfe3f66 | 3116 | } |
873ef191 | 3117 | sv_catpvn(buf_sv, p, nl-p); |
3280af22 | 3118 | sv_chop(PL_e_script, nl); |
873ef191 GS |
3119 | return 1; |
3120 | } | |
3121 | ||
1163b5c4 | 3122 |