Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* perl.c |
2 | * | |
9607fc9c | 3 | * Copyright (c) 1987-1997 Larry Wall |
a687059c | 4 | * |
352d5a3a LW |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. | |
a687059c | 7 | * |
8d063cd8 LW |
8 | */ |
9 | ||
a0d0e21e LW |
10 | /* |
11 | * "A ship then new they built for him/of mithril and of elven glass" --Bilbo | |
12 | */ | |
45d8adaa | 13 | |
378cc40b LW |
14 | #include "EXTERN.h" |
15 | #include "perl.h" | |
a687059c | 16 | #include "patchlevel.h" |
378cc40b | 17 | |
df5cef82 | 18 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e LW |
19 | #ifdef I_UNISTD |
20 | #include <unistd.h> | |
21 | #endif | |
a0d0e21e | 22 | |
54310121 | 23 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) |
24 | char *getenv _((char *)); /* Usually in <stdlib.h> */ | |
25 | #endif | |
26 | ||
71be2cbc | 27 | dEXTCONST char rcsid[] = "perl.c\nPatch level: ###\n"; |
463ee0b2 | 28 | |
a687059c LW |
29 | #ifdef IAMSUID |
30 | #ifndef DOSUID | |
31 | #define DOSUID | |
32 | #endif | |
33 | #endif | |
378cc40b | 34 | |
a687059c LW |
35 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
36 | #ifdef DOSUID | |
37 | #undef DOSUID | |
38 | #endif | |
39 | #endif | |
8d063cd8 | 40 | |
8ebc5c01 | 41 | #define I_REINIT \ |
42 | STMT_START { \ | |
43 | chopset = " \n-"; \ | |
44 | copline = NOLINE; \ | |
45 | curcop = &compiling; \ | |
46 | curcopdb = NULL; \ | |
47 | cxstack_ix = -1; \ | |
48 | cxstack_max = 128; \ | |
49 | dbargs = 0; \ | |
50 | dlmax = 128; \ | |
51 | laststatval = -1; \ | |
52 | laststype = OP_STAT; \ | |
53 | maxscream = -1; \ | |
54 | maxsysfd = MAXSYSFD; \ | |
55 | statname = Nullsv; \ | |
56 | tmps_floor = -1; \ | |
57 | tmps_ix = -1; \ | |
58 | op_mask = NULL; \ | |
59 | dlmax = 128; \ | |
60 | laststatval = -1; \ | |
61 | laststype = OP_STAT; \ | |
46fc3d4c | 62 | mess_sv = Nullsv; \ |
8ebc5c01 | 63 | } STMT_END |
64 | ||
a0d0e21e | 65 | static void find_beginning _((void)); |
bbce6d69 | 66 | static void forbid_setid _((char *)); |
774d564b | 67 | static void incpush _((char *, int)); |
748a9306 | 68 | static void init_ids _((void)); |
a0d0e21e LW |
69 | static void init_debugger _((void)); |
70 | static void init_lexer _((void)); | |
71 | static void init_main_stash _((void)); | |
72 | static void init_perllib _((void)); | |
73 | static void init_postdump_symbols _((int, char **, char **)); | |
74 | static void init_predump_symbols _((void)); | |
f86702cc | 75 | static void my_exit_jump _((void)) __attribute__((noreturn)); |
6e72f9df | 76 | static void nuke_stacks _((void)); |
a0d0e21e | 77 | static void open_script _((char *, bool, SV *)); |
11343788 MB |
78 | #ifdef USE_THREADS |
79 | static void thread_destruct _((void *)); | |
80 | #endif /* USE_THREADS */ | |
ab821d7f | 81 | static void usage _((char *)); |
96436eeb | 82 | static void validate_suid _((char *, char*)); |
83 | ||
84 | static int fdscript = -1; | |
79072805 | 85 | |
93a17b20 | 86 | PerlInterpreter * |
79072805 LW |
87 | perl_alloc() |
88 | { | |
93a17b20 | 89 | PerlInterpreter *sv_interp; |
79072805 | 90 | |
8990e307 | 91 | curinterp = 0; |
93a17b20 | 92 | New(53, sv_interp, 1, PerlInterpreter); |
79072805 LW |
93 | return sv_interp; |
94 | } | |
95 | ||
96 | void | |
97 | perl_construct( sv_interp ) | |
93a17b20 | 98 | register PerlInterpreter *sv_interp; |
79072805 | 99 | { |
11343788 MB |
100 | #ifdef USE_THREADS |
101 | struct thread *thr; | |
102 | #endif /* USE_THREADS */ | |
103 | ||
79072805 LW |
104 | if (!(curinterp = sv_interp)) |
105 | return; | |
106 | ||
8990e307 | 107 | #ifdef MULTIPLICITY |
93a17b20 | 108 | Zero(sv_interp, 1, PerlInterpreter); |
8990e307 | 109 | #endif |
79072805 | 110 | |
11343788 MB |
111 | #ifdef USE_THREADS |
112 | #ifdef NEED_PTHREAD_INIT | |
113 | pthread_init(); | |
114 | #endif /* NEED_PTHREAD_INIT */ | |
115 | New(53, thr, 1, struct thread); | |
116 | self = pthread_self(); | |
117 | if (pthread_key_create(&thr_key, thread_destruct)) | |
118 | croak("panic: pthread_key_create"); | |
119 | if (pthread_setspecific(thr_key, (void *) thr)) | |
120 | croak("panic: pthread_setspecific"); | |
121 | nthreads = 1; | |
122 | cvcache = newHV(); | |
f93b4edd | 123 | thrflags = 0; |
11343788 MB |
124 | #endif /* USE_THREADS */ |
125 | ||
79072805 LW |
126 | /* Init the real globals? */ |
127 | if (!linestr) { | |
128 | linestr = NEWSV(65,80); | |
ed6116ce | 129 | sv_upgrade(linestr,SVt_PVIV); |
79072805 | 130 | |
6e72f9df | 131 | if (!SvREADONLY(&sv_undef)) { |
132 | SvREADONLY_on(&sv_undef); | |
79072805 | 133 | |
6e72f9df | 134 | sv_setpv(&sv_no,No); |
135 | SvNV(&sv_no); | |
136 | SvREADONLY_on(&sv_no); | |
79072805 | 137 | |
6e72f9df | 138 | sv_setpv(&sv_yes,Yes); |
139 | SvNV(&sv_yes); | |
140 | SvREADONLY_on(&sv_yes); | |
141 | } | |
79072805 | 142 | |
c07a80fd | 143 | nrs = newSVpv("\n", 1); |
144 | rs = SvREFCNT_inc(nrs); | |
145 | ||
11343788 MB |
146 | MUTEX_INIT(&malloc_mutex); |
147 | MUTEX_INIT(&sv_mutex); | |
148 | MUTEX_INIT(&eval_mutex); | |
149 | MUTEX_INIT(&nthreads_mutex); | |
150 | COND_INIT(&nthreads_cond); | |
151 | ||
44a8e56a | 152 | pidstatus = newHV(); |
153 | ||
79072805 LW |
154 | #ifdef MSDOS |
155 | /* | |
156 | * There is no way we can refer to them from Perl so close them to save | |
157 | * space. The other alternative would be to provide STDAUX and STDPRN | |
158 | * filehandles. | |
159 | */ | |
160 | (void)fclose(stdaux); | |
161 | (void)fclose(stdprn); | |
162 | #endif | |
163 | } | |
164 | ||
8990e307 | 165 | #ifdef MULTIPLICITY |
8ebc5c01 | 166 | I_REINIT; |
167 | perl_destruct_level = 1; | |
168 | #else | |
169 | if(perl_destruct_level > 0) | |
170 | I_REINIT; | |
79072805 LW |
171 | #endif |
172 | ||
748a9306 | 173 | init_ids(); |
a5f75d66 | 174 | |
54310121 | 175 | start_env.je_prev = NULL; |
176 | start_env.je_ret = -1; | |
177 | start_env.je_mustcatch = TRUE; | |
178 | top_env = &start_env; | |
f86702cc | 179 | STATUS_ALL_SUCCESS; |
180 | ||
36477c24 | 181 | SET_NUMERIC_STANDARD(); |
a5f75d66 | 182 | #if defined(SUBVERSION) && SUBVERSION > 0 |
e2666263 | 183 | sprintf(patchlevel, "%7.5f", (double) 5 |
184 | + ((double) PATCHLEVEL / (double) 1000) | |
185 | + ((double) SUBVERSION / (double) 100000)); | |
a5f75d66 | 186 | #else |
e2666263 | 187 | sprintf(patchlevel, "%5.3f", (double) 5 + |
188 | ((double) PATCHLEVEL / (double) 1000)); | |
a5f75d66 | 189 | #endif |
79072805 | 190 | |
ab821d7f | 191 | #if defined(LOCAL_PATCH_COUNT) |
6e72f9df | 192 | localpatches = local_patches; /* For possible -v */ |
ab821d7f | 193 | #endif |
194 | ||
760ac839 LW |
195 | PerlIO_init(); /* Hook to IO system */ |
196 | ||
79072805 | 197 | fdpid = newAV(); /* for remembering popen pids by fd */ |
8990e307 | 198 | |
11343788 MB |
199 | init_stacks(ARGS); |
200 | DEBUG( { | |
201 | New(51,debname,128,char); | |
202 | New(52,debdelim,128,char); | |
203 | } ) | |
204 | ||
8990e307 | 205 | ENTER; |
79072805 LW |
206 | } |
207 | ||
11343788 MB |
208 | #ifdef USE_THREADS |
209 | void | |
210 | thread_destruct(arg) | |
211 | void *arg; | |
212 | { | |
213 | struct thread *thr = (struct thread *) arg; | |
214 | /* | |
215 | * Decrement the global thread count and signal anyone listening. | |
216 | * The only official thread listening is the original thread while | |
217 | * in perl_destruct. It waits until it's the only thread and then | |
218 | * performs END blocks and other process clean-ups. | |
219 | */ | |
220 | DEBUG_L(fprintf(stderr, "thread_destruct: 0x%lx\n", (unsigned long) thr)); | |
221 | ||
222 | Safefree(thr); | |
223 | MUTEX_LOCK(&nthreads_mutex); | |
224 | nthreads--; | |
225 | COND_BROADCAST(&nthreads_cond); | |
226 | MUTEX_UNLOCK(&nthreads_mutex); | |
227 | } | |
228 | #endif /* USE_THREADS */ | |
229 | ||
79072805 | 230 | void |
748a9306 | 231 | perl_destruct(sv_interp) |
93a17b20 | 232 | register PerlInterpreter *sv_interp; |
79072805 | 233 | { |
11343788 | 234 | dTHR; |
748a9306 | 235 | int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
8990e307 | 236 | I32 last_sv_count; |
a0d0e21e | 237 | HV *hv; |
8990e307 | 238 | |
79072805 LW |
239 | if (!(curinterp = sv_interp)) |
240 | return; | |
748a9306 | 241 | |
11343788 MB |
242 | #ifdef USE_THREADS |
243 | /* Wait until all user-created threads go away */ | |
244 | MUTEX_LOCK(&nthreads_mutex); | |
245 | while (nthreads > 1) | |
246 | { | |
247 | DEBUG_L(fprintf(stderr, "perl_destruct: waiting for %d threads\n", | |
248 | nthreads - 1)); | |
249 | COND_WAIT(&nthreads_cond, &nthreads_mutex); | |
250 | } | |
251 | /* At this point, we're the last thread */ | |
252 | MUTEX_UNLOCK(&nthreads_mutex); | |
253 | DEBUG_L(fprintf(stderr, "perl_destruct: armageddon has arrived\n")); | |
254 | MUTEX_DESTROY(&nthreads_mutex); | |
255 | COND_DESTROY(&nthreads_cond); | |
256 | #endif /* USE_THREADS */ | |
257 | ||
748a9306 | 258 | destruct_level = perl_destruct_level; |
4633a7c4 LW |
259 | #ifdef DEBUGGING |
260 | { | |
261 | char *s; | |
5f05dabc | 262 | if (s = getenv("PERL_DESTRUCT_LEVEL")) { |
263 | int i = atoi(s); | |
264 | if (destruct_level < i) | |
265 | destruct_level = i; | |
266 | } | |
4633a7c4 LW |
267 | } |
268 | #endif | |
269 | ||
8990e307 | 270 | LEAVE; |
a0d0e21e LW |
271 | FREETMPS; |
272 | ||
ff0cee69 | 273 | /* We must account for everything. */ |
274 | ||
275 | /* Destroy the main CV and syntax tree */ | |
6e72f9df | 276 | if (main_root) { |
277 | curpad = AvARRAY(comppad); | |
278 | op_free(main_root); | |
ff0cee69 | 279 | main_root = Nullop; |
a0d0e21e | 280 | } |
ff0cee69 | 281 | main_start = Nullop; |
282 | SvREFCNT_dec(main_cv); | |
283 | main_cv = Nullcv; | |
284 | ||
a0d0e21e LW |
285 | if (sv_objcount) { |
286 | /* | |
287 | * Try to destruct global references. We do this first so that the | |
288 | * destructors and destructees still exist. Some sv's might remain. | |
289 | * Non-referenced objects are on their own. | |
290 | */ | |
291 | ||
292 | dirty = TRUE; | |
293 | sv_clean_objs(); | |
8990e307 LW |
294 | } |
295 | ||
5cd24f17 | 296 | /* unhook hooks which will soon be, or use, destroyed data */ |
297 | SvREFCNT_dec(warnhook); | |
298 | warnhook = Nullsv; | |
299 | SvREFCNT_dec(diehook); | |
300 | diehook = Nullsv; | |
301 | SvREFCNT_dec(parsehook); | |
302 | parsehook = Nullsv; | |
303 | ||
a0d0e21e | 304 | if (destruct_level == 0){ |
8990e307 | 305 | |
a0d0e21e LW |
306 | DEBUG_P(debprofdump()); |
307 | ||
308 | /* The exit() function will do everything that needs doing. */ | |
309 | return; | |
310 | } | |
5dd60ef7 | 311 | |
5f05dabc | 312 | /* loosen bonds of global variables */ |
313 | ||
8ebc5c01 | 314 | if(rsfp) { |
315 | (void)PerlIO_close(rsfp); | |
316 | rsfp = Nullfp; | |
317 | } | |
318 | ||
319 | /* Filters for program text */ | |
320 | SvREFCNT_dec(rsfp_filters); | |
321 | rsfp_filters = Nullav; | |
322 | ||
323 | /* switches */ | |
324 | preprocess = FALSE; | |
325 | minus_n = FALSE; | |
326 | minus_p = FALSE; | |
327 | minus_l = FALSE; | |
328 | minus_a = FALSE; | |
329 | minus_F = FALSE; | |
330 | doswitches = FALSE; | |
331 | dowarn = FALSE; | |
332 | doextract = FALSE; | |
333 | sawampersand = FALSE; /* must save all match strings */ | |
334 | sawstudy = FALSE; /* do fbm_instr on all strings */ | |
335 | sawvec = FALSE; | |
336 | unsafe = FALSE; | |
337 | ||
338 | Safefree(inplace); | |
339 | inplace = Nullch; | |
340 | ||
341 | Safefree(e_tmpname); | |
342 | e_tmpname = Nullch; | |
343 | ||
344 | if (e_fp) { | |
345 | PerlIO_close(e_fp); | |
346 | e_fp = Nullfp; | |
347 | } | |
348 | ||
349 | /* magical thingies */ | |
350 | ||
351 | Safefree(ofs); /* $, */ | |
352 | ofs = Nullch; | |
5f05dabc | 353 | |
8ebc5c01 | 354 | Safefree(ors); /* $\ */ |
355 | ors = Nullch; | |
356 | ||
357 | SvREFCNT_dec(nrs); /* $\ helper */ | |
5f05dabc | 358 | nrs = Nullsv; |
359 | ||
8ebc5c01 | 360 | multiline = 0; /* $* */ |
5f05dabc | 361 | |
8ebc5c01 | 362 | SvREFCNT_dec(statname); |
5f05dabc | 363 | statname = Nullsv; |
364 | statgv = Nullgv; | |
5f05dabc | 365 | |
8ebc5c01 | 366 | /* defgv, aka *_ should be taken care of elsewhere */ |
367 | ||
368 | #if 0 /* just about all regexp stuff, seems to be ok */ | |
369 | ||
370 | /* shortcuts to regexp stuff */ | |
371 | leftgv = Nullgv; | |
372 | ampergv = Nullgv; | |
373 | ||
374 | SAVEFREEOP(curpm); | |
375 | SAVEFREEOP(oldlastpm); /* for saving regexp context during debugger */ | |
376 | ||
377 | regprecomp = NULL; /* uncompiled string. */ | |
378 | regparse = NULL; /* Input-scan pointer. */ | |
379 | regxend = NULL; /* End of input for compile */ | |
380 | regnpar = 0; /* () count. */ | |
381 | regcode = NULL; /* Code-emit pointer; ®dummy = don't. */ | |
382 | regsize = 0; /* Code size. */ | |
383 | regnaughty = 0; /* How bad is this pattern? */ | |
384 | regsawback = 0; /* Did we see \1, ...? */ | |
385 | ||
386 | reginput = NULL; /* String-input pointer. */ | |
387 | regbol = NULL; /* Beginning of input, for ^ check. */ | |
388 | regeol = NULL; /* End of input, for $ check. */ | |
389 | regstartp = (char **)NULL; /* Pointer to startp array. */ | |
390 | regendp = (char **)NULL; /* Ditto for endp. */ | |
391 | reglastparen = 0; /* Similarly for lastparen. */ | |
392 | regtill = NULL; /* How far we are required to go. */ | |
393 | regflags = 0; /* are we folding, multilining? */ | |
394 | regprev = (char)NULL; /* char before regbol, \n if none */ | |
395 | ||
396 | #endif /* if 0 */ | |
397 | ||
398 | /* clean up after study() */ | |
399 | SvREFCNT_dec(lastscream); | |
400 | lastscream = Nullsv; | |
401 | Safefree(screamfirst); | |
402 | screamfirst = 0; | |
403 | Safefree(screamnext); | |
404 | screamnext = 0; | |
405 | ||
406 | /* startup and shutdown function lists */ | |
407 | SvREFCNT_dec(beginav); | |
408 | SvREFCNT_dec(endav); | |
5618dfe8 | 409 | beginav = Nullav; |
5618dfe8 CS |
410 | endav = Nullav; |
411 | ||
8ebc5c01 | 412 | /* temp stack during pp_sort() */ |
413 | SvREFCNT_dec(sortstack); | |
414 | sortstack = Nullav; | |
415 | ||
416 | /* shortcuts just get cleared */ | |
417 | envgv = Nullgv; | |
418 | siggv = Nullgv; | |
419 | incgv = Nullgv; | |
420 | errgv = Nullgv; | |
421 | argvgv = Nullgv; | |
422 | argvoutgv = Nullgv; | |
423 | stdingv = Nullgv; | |
424 | last_in_gv = Nullgv; | |
425 | ||
426 | /* reset so print() ends up where we expect */ | |
427 | setdefout(Nullgv); | |
428 | ||
a0d0e21e | 429 | /* Prepare to destruct main symbol table. */ |
5f05dabc | 430 | |
a0d0e21e | 431 | hv = defstash; |
85e6fe83 | 432 | defstash = 0; |
a0d0e21e LW |
433 | SvREFCNT_dec(hv); |
434 | ||
435 | FREETMPS; | |
436 | if (destruct_level >= 2) { | |
437 | if (scopestack_ix != 0) | |
ff0cee69 | 438 | warn("Unbalanced scopes: %ld more ENTERs than LEAVEs\n", |
439 | (long)scopestack_ix); | |
a0d0e21e | 440 | if (savestack_ix != 0) |
ff0cee69 | 441 | warn("Unbalanced saves: %ld more saves than restores\n", |
442 | (long)savestack_ix); | |
a0d0e21e | 443 | if (tmps_floor != -1) |
ff0cee69 | 444 | warn("Unbalanced tmps: %ld more allocs than frees\n", |
445 | (long)tmps_floor + 1); | |
a0d0e21e | 446 | if (cxstack_ix != -1) |
ff0cee69 | 447 | warn("Unbalanced context: %ld more PUSHes than POPs\n", |
448 | (long)cxstack_ix + 1); | |
a0d0e21e | 449 | } |
8990e307 LW |
450 | |
451 | /* Now absolutely destruct everything, somehow or other, loops or no. */ | |
8990e307 | 452 | last_sv_count = 0; |
6e72f9df | 453 | SvFLAGS(strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
8990e307 LW |
454 | while (sv_count != 0 && sv_count != last_sv_count) { |
455 | last_sv_count = sv_count; | |
456 | sv_clean_all(); | |
457 | } | |
6e72f9df | 458 | SvFLAGS(strtab) &= ~SVTYPEMASK; |
459 | SvFLAGS(strtab) |= SVt_PVHV; | |
460 | ||
461 | /* Destruct the global string table. */ | |
462 | { | |
463 | /* Yell and reset the HeVAL() slots that are still holding refcounts, | |
464 | * so that sv_free() won't fail on them. | |
465 | */ | |
466 | I32 riter; | |
467 | I32 max; | |
468 | HE *hent; | |
469 | HE **array; | |
470 | ||
471 | riter = 0; | |
472 | max = HvMAX(strtab); | |
473 | array = HvARRAY(strtab); | |
474 | hent = array[0]; | |
475 | for (;;) { | |
476 | if (hent) { | |
477 | warn("Unbalanced string table refcount: (%d) for \"%s\"", | |
478 | HeVAL(hent) - Nullsv, HeKEY(hent)); | |
479 | HeVAL(hent) = Nullsv; | |
480 | hent = HeNEXT(hent); | |
481 | } | |
482 | if (!hent) { | |
483 | if (++riter > max) | |
484 | break; | |
485 | hent = array[riter]; | |
486 | } | |
487 | } | |
488 | } | |
489 | SvREFCNT_dec(strtab); | |
490 | ||
8990e307 | 491 | if (sv_count != 0) |
ff0cee69 | 492 | warn("Scalars leaked: %ld\n", (long)sv_count); |
6e72f9df | 493 | |
4633a7c4 | 494 | sv_free_arenas(); |
44a8e56a | 495 | |
496 | /* No SVs have survived, need to clean out */ | |
497 | linestr = NULL; | |
498 | pidstatus = Nullhv; | |
6e72f9df | 499 | if (origfilename) |
500 | Safefree(origfilename); | |
501 | nuke_stacks(); | |
fc36a67e | 502 | hints = 0; /* Reset hints. Should hints be per-interpreter ? */ |
a0d0e21e LW |
503 | |
504 | DEBUG_P(debprofdump()); | |
11343788 MB |
505 | #ifdef USE_THREADS |
506 | MUTEX_DESTROY(&sv_mutex); | |
507 | MUTEX_DESTROY(&malloc_mutex); | |
508 | MUTEX_DESTROY(&eval_mutex); | |
509 | #endif /* USE_THREADS */ | |
fc36a67e | 510 | |
511 | /* As the absolutely last thing, free the non-arena SV for mess() */ | |
512 | ||
513 | if (mess_sv) { | |
514 | /* we know that type >= SVt_PV */ | |
515 | SvOOK_off(mess_sv); | |
516 | Safefree(SvPVX(mess_sv)); | |
517 | Safefree(SvANY(mess_sv)); | |
518 | Safefree(mess_sv); | |
519 | mess_sv = Nullsv; | |
520 | } | |
79072805 LW |
521 | } |
522 | ||
523 | void | |
524 | perl_free(sv_interp) | |
93a17b20 | 525 | PerlInterpreter *sv_interp; |
79072805 LW |
526 | { |
527 | if (!(curinterp = sv_interp)) | |
528 | return; | |
529 | Safefree(sv_interp); | |
530 | } | |
531 | ||
532 | int | |
a0d0e21e | 533 | perl_parse(sv_interp, xsinit, argc, argv, env) |
93a17b20 | 534 | PerlInterpreter *sv_interp; |
a0d0e21e LW |
535 | void (*xsinit)_((void)); |
536 | int argc; | |
537 | char **argv; | |
79072805 | 538 | char **env; |
8d063cd8 | 539 | { |
11343788 | 540 | dTHR; |
79072805 | 541 | register SV *sv; |
8d063cd8 | 542 | register char *s; |
1a30305b | 543 | char *scriptname = NULL; |
a0d0e21e | 544 | VOL bool dosearch = FALSE; |
13281fa4 | 545 | char *validarg = ""; |
2ae324a7 | 546 | I32 oldscope; |
748a9306 | 547 | AV* comppadlist; |
54310121 | 548 | dJMPENV; |
22921e25 | 549 | int ret; |
8d063cd8 | 550 | |
a687059c LW |
551 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
552 | #ifdef IAMSUID | |
553 | #undef IAMSUID | |
463ee0b2 | 554 | croak("suidperl is no longer needed since the kernel can now execute\n\ |
a687059c LW |
555 | setuid perl scripts securely.\n"); |
556 | #endif | |
557 | #endif | |
558 | ||
79072805 LW |
559 | if (!(curinterp = sv_interp)) |
560 | return 255; | |
561 | ||
6e72f9df | 562 | #if defined(NeXT) && defined(__DYNAMIC__) |
563 | _dyld_lookup_and_bind | |
564 | ("__environ", (unsigned long *) &environ_pointer, NULL); | |
565 | #endif /* environ */ | |
566 | ||
ac58e20f LW |
567 | origargv = argv; |
568 | origargc = argc; | |
a0d0e21e | 569 | #ifndef VMS /* VMS doesn't have environ array */ |
fe14fcc3 | 570 | origenviron = environ; |
a0d0e21e | 571 | #endif |
ab821d7f | 572 | e_tmpname = Nullch; |
a0d0e21e LW |
573 | |
574 | if (do_undump) { | |
575 | ||
576 | /* Come here if running an undumped a.out. */ | |
577 | ||
578 | origfilename = savepv(argv[0]); | |
579 | do_undump = FALSE; | |
580 | cxstack_ix = -1; /* start label stack again */ | |
748a9306 | 581 | init_ids(); |
a0d0e21e LW |
582 | init_postdump_symbols(argc,argv,env); |
583 | return 0; | |
584 | } | |
585 | ||
ff0cee69 | 586 | if (main_root) { |
587 | curpad = AvARRAY(comppad); | |
a0d0e21e | 588 | op_free(main_root); |
ff0cee69 | 589 | main_root = Nullop; |
590 | } | |
591 | main_start = Nullop; | |
592 | SvREFCNT_dec(main_cv); | |
593 | main_cv = Nullcv; | |
79072805 | 594 | |
f86702cc | 595 | time(&basetime); |
2ae324a7 | 596 | oldscope = scopestack_ix; |
f86702cc | 597 | |
22921e25 CS |
598 | JMPENV_PUSH(ret); |
599 | switch (ret) { | |
79072805 | 600 | case 1: |
f86702cc | 601 | STATUS_ALL_FAILURE; |
602 | /* FALL THROUGH */ | |
79072805 | 603 | case 2: |
f86702cc | 604 | /* my_exit() was called */ |
2ae324a7 | 605 | while (scopestack_ix > oldscope) |
606 | LEAVE; | |
8990e307 LW |
607 | curstash = defstash; |
608 | if (endav) | |
68dc0745 | 609 | call_list(oldscope, endav); |
54310121 | 610 | JMPENV_POP; |
f86702cc | 611 | return STATUS_NATIVE_EXPORT; |
79072805 | 612 | case 3: |
54310121 | 613 | JMPENV_POP; |
760ac839 | 614 | PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); |
8990e307 | 615 | return 1; |
79072805 LW |
616 | } |
617 | ||
79072805 LW |
618 | sv_setpvn(linestr,"",0); |
619 | sv = newSVpv("",0); /* first used for -I flags */ | |
8990e307 | 620 | SAVEFREESV(sv); |
79072805 | 621 | init_main_stash(); |
54310121 | 622 | |
33b78306 | 623 | for (argc--,argv++; argc > 0; argc--,argv++) { |
8d063cd8 LW |
624 | if (argv[0][0] != '-' || !argv[0][1]) |
625 | break; | |
13281fa4 LW |
626 | #ifdef DOSUID |
627 | if (*validarg) | |
628 | validarg = " PHOOEY "; | |
629 | else | |
630 | validarg = argv[0]; | |
631 | #endif | |
632 | s = argv[0]+1; | |
8d063cd8 | 633 | reswitch: |
13281fa4 | 634 | switch (*s) { |
27e2fb84 | 635 | case '0': |
2304df62 | 636 | case 'F': |
378cc40b | 637 | case 'a': |
33b78306 | 638 | case 'c': |
a687059c | 639 | case 'd': |
8d063cd8 | 640 | case 'D': |
4633a7c4 | 641 | case 'h': |
33b78306 | 642 | case 'i': |
fe14fcc3 | 643 | case 'l': |
1a30305b | 644 | case 'M': |
645 | case 'm': | |
33b78306 LW |
646 | case 'n': |
647 | case 'p': | |
79072805 | 648 | case 's': |
33b78306 LW |
649 | case 'u': |
650 | case 'U': | |
651 | case 'v': | |
652 | case 'w': | |
653 | if (s = moreswitches(s)) | |
654 | goto reswitch; | |
8d063cd8 | 655 | break; |
33b78306 | 656 | |
f86702cc | 657 | case 'T': |
658 | tainting = TRUE; | |
659 | s++; | |
660 | goto reswitch; | |
661 | ||
8d063cd8 | 662 | case 'e': |
a687059c | 663 | if (euid != uid || egid != gid) |
463ee0b2 | 664 | croak("No -e allowed in setuid scripts"); |
8d063cd8 | 665 | if (!e_fp) { |
a0d0e21e | 666 | e_tmpname = savepv(TMPPATH); |
a687059c | 667 | (void)mktemp(e_tmpname); |
83025b21 | 668 | if (!*e_tmpname) |
463ee0b2 | 669 | croak("Can't mktemp()"); |
760ac839 | 670 | e_fp = PerlIO_open(e_tmpname,"w"); |
33b78306 | 671 | if (!e_fp) |
463ee0b2 | 672 | croak("Cannot open temporary file"); |
8d063cd8 | 673 | } |
552a7a9b | 674 | if (*++s) |
675 | PerlIO_puts(e_fp,s); | |
676 | else if (argv[1]) { | |
760ac839 | 677 | PerlIO_puts(e_fp,argv[1]); |
33b78306 LW |
678 | argc--,argv++; |
679 | } | |
552a7a9b | 680 | else |
681 | croak("No code specified for -e"); | |
760ac839 | 682 | (void)PerlIO_putc(e_fp,'\n'); |
8d063cd8 LW |
683 | break; |
684 | case 'I': | |
bbce6d69 | 685 | forbid_setid("-I"); |
79072805 LW |
686 | sv_catpv(sv,"-"); |
687 | sv_catpv(sv,s); | |
688 | sv_catpv(sv," "); | |
a687059c | 689 | if (*++s) { |
774d564b | 690 | incpush(s, TRUE); |
378cc40b | 691 | } |
33b78306 | 692 | else if (argv[1]) { |
774d564b | 693 | incpush(argv[1], TRUE); |
79072805 | 694 | sv_catpv(sv,argv[1]); |
8d063cd8 | 695 | argc--,argv++; |
79072805 | 696 | sv_catpv(sv," "); |
8d063cd8 LW |
697 | } |
698 | break; | |
8d063cd8 | 699 | case 'P': |
bbce6d69 | 700 | forbid_setid("-P"); |
8d063cd8 | 701 | preprocess = TRUE; |
13281fa4 | 702 | s++; |
8d063cd8 | 703 | goto reswitch; |
378cc40b | 704 | case 'S': |
bbce6d69 | 705 | forbid_setid("-S"); |
378cc40b | 706 | dosearch = TRUE; |
13281fa4 | 707 | s++; |
378cc40b | 708 | goto reswitch; |
1a30305b | 709 | case 'V': |
710 | if (!preambleav) | |
711 | preambleav = newAV(); | |
712 | av_push(preambleav, newSVpv("use Config qw(myconfig config_vars)",0)); | |
713 | if (*++s != ':') { | |
6e72f9df | 714 | Sv = newSVpv("print myconfig();",0); |
715 | #ifdef VMS | |
716 | sv_catpv(Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\","); | |
717 | #else | |
718 | sv_catpv(Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\","); | |
719 | #endif | |
54310121 | 720 | #if defined(DEBUGGING) || defined(NO_EMBED) || defined(MULTIPLICITY) |
46fc3d4c | 721 | sv_catpv(Sv,"\" Compile-time options:"); |
6e72f9df | 722 | # ifdef DEBUGGING |
46fc3d4c | 723 | sv_catpv(Sv," DEBUGGING"); |
6e72f9df | 724 | # endif |
54310121 | 725 | # ifdef NO_EMBED |
46fc3d4c | 726 | sv_catpv(Sv," NO_EMBED"); |
6e72f9df | 727 | # endif |
728 | # ifdef MULTIPLICITY | |
46fc3d4c | 729 | sv_catpv(Sv," MULTIPLICITY"); |
6e72f9df | 730 | # endif |
46fc3d4c | 731 | sv_catpv(Sv,"\\n\","); |
6e72f9df | 732 | #endif |
733 | #if defined(LOCAL_PATCH_COUNT) | |
54310121 | 734 | if (LOCAL_PATCH_COUNT > 0) { |
735 | int i; | |
5cd24f17 | 736 | sv_catpv(Sv,"\" Locally applied patches:\\n\","); |
6e72f9df | 737 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { |
46fc3d4c | 738 | if (localpatches[i]) |
739 | sv_catpvf(Sv,"\" \\t%s\\n\",",localpatches[i]); | |
6e72f9df | 740 | } |
741 | } | |
742 | #endif | |
46fc3d4c | 743 | sv_catpvf(Sv,"\" Built under %s\\n\"",OSNAME); |
6e72f9df | 744 | #ifdef __DATE__ |
745 | # ifdef __TIME__ | |
46fc3d4c | 746 | sv_catpvf(Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__); |
6e72f9df | 747 | # else |
46fc3d4c | 748 | sv_catpvf(Sv,",\" Compiled on %s\\n\"",__DATE__); |
6e72f9df | 749 | # endif |
6e72f9df | 750 | #endif |
54310121 | 751 | sv_catpv(Sv, "; \ |
752 | $\"=\"\\n \"; \ | |
753 | @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; \ | |
754 | print \" \\%ENV:\\n @env\\n\" if @env; \ | |
755 | print \" \\@INC:\\n @INC\\n\";"); | |
1a30305b | 756 | } |
757 | else { | |
758 | Sv = newSVpv("config_vars(qw(",0); | |
759 | sv_catpv(Sv, ++s); | |
760 | sv_catpv(Sv, "))"); | |
761 | s += strlen(s); | |
762 | } | |
763 | av_push(preambleav, Sv); | |
c07a80fd | 764 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
1a30305b | 765 | goto reswitch; |
33b78306 LW |
766 | case 'x': |
767 | doextract = TRUE; | |
13281fa4 | 768 | s++; |
33b78306 | 769 | if (*s) |
a0d0e21e | 770 | cddir = savepv(s); |
33b78306 | 771 | break; |
8d063cd8 LW |
772 | case '-': |
773 | argc--,argv++; | |
774 | goto switch_end; | |
775 | case 0: | |
776 | break; | |
777 | default: | |
463ee0b2 | 778 | croak("Unrecognized switch: -%s",s); |
8d063cd8 LW |
779 | } |
780 | } | |
781 | switch_end: | |
54310121 | 782 | |
783 | if (!tainting && (s = getenv("PERL5OPT"))) { | |
784 | for (;;) { | |
785 | while (isSPACE(*s)) | |
786 | s++; | |
787 | if (*s == '-') { | |
788 | s++; | |
789 | if (isSPACE(*s)) | |
790 | continue; | |
791 | } | |
792 | if (!*s) | |
793 | break; | |
794 | if (!strchr("DIMUdmw", *s)) | |
795 | croak("Illegal switch in PERL5OPT: -%c", *s); | |
796 | s = moreswitches(s); | |
797 | } | |
798 | } | |
799 | ||
1a30305b | 800 | if (!scriptname) |
801 | scriptname = argv[0]; | |
8d063cd8 | 802 | if (e_fp) { |
68dc0745 | 803 | if (PerlIO_flush(e_fp) || PerlIO_error(e_fp) || PerlIO_close(e_fp)) { |
804 | #ifndef MULTIPLICITY | |
805 | warn("Did you forget to compile with -DMULTIPLICITY?"); | |
806 | #endif | |
2304df62 | 807 | croak("Can't write to temp file for -e: %s", Strerror(errno)); |
68dc0745 | 808 | } |
ab821d7f | 809 | e_fp = Nullfp; |
8d063cd8 | 810 | argc++,argv--; |
45d8adaa | 811 | scriptname = e_tmpname; |
8d063cd8 | 812 | } |
79072805 LW |
813 | else if (scriptname == Nullch) { |
814 | #ifdef MSDOS | |
760ac839 | 815 | if ( isatty(PerlIO_fileno(PerlIO_stdin())) ) |
55497cff | 816 | moreswitches("h"); |
fe14fcc3 | 817 | #endif |
79072805 LW |
818 | scriptname = "-"; |
819 | } | |
fe14fcc3 | 820 | |
79072805 | 821 | init_perllib(); |
8d063cd8 | 822 | |
79072805 | 823 | open_script(scriptname,dosearch,sv); |
8d063cd8 | 824 | |
96436eeb | 825 | validate_suid(validarg, scriptname); |
378cc40b | 826 | |
79072805 LW |
827 | if (doextract) |
828 | find_beginning(); | |
829 | ||
4fdae800 | 830 | main_cv = compcv = (CV*)NEWSV(1104,0); |
748a9306 | 831 | sv_upgrade((SV *)compcv, SVt_PVCV); |
07055b4c | 832 | CvUNIQUE_on(compcv); |
748a9306 | 833 | |
6e72f9df | 834 | comppad = newAV(); |
79072805 LW |
835 | av_push(comppad, Nullsv); |
836 | curpad = AvARRAY(comppad); | |
6e72f9df | 837 | comppad_name = newAV(); |
8990e307 | 838 | comppad_name_fill = 0; |
e858de61 MB |
839 | min_intro_pending = 0; |
840 | padix = 0; | |
11343788 MB |
841 | #ifdef USE_THREADS |
842 | av_store(comppad_name, 0, newSVpv("@_", 2)); | |
e858de61 | 843 | curpad[0] = (SV*)newAV(); |
6d4ff0d2 | 844 | SvPADMY_on(curpad[0]); /* XXX Needed? */ |
e858de61 MB |
845 | CvOWNER(compcv) = 0; |
846 | New(666, CvMUTEXP(compcv), 1, pthread_mutex_t); | |
847 | MUTEX_INIT(CvMUTEXP(compcv)); | |
848 | New(666, CvCONDP(compcv), 1, pthread_cond_t); | |
849 | COND_INIT(CvCONDP(compcv)); | |
11343788 | 850 | #endif /* USE_THREADS */ |
79072805 | 851 | |
748a9306 LW |
852 | comppadlist = newAV(); |
853 | AvREAL_off(comppadlist); | |
8e07c86e AD |
854 | av_store(comppadlist, 0, (SV*)comppad_name); |
855 | av_store(comppadlist, 1, (SV*)comppad); | |
748a9306 LW |
856 | CvPADLIST(compcv) = comppadlist; |
857 | ||
6e72f9df | 858 | boot_core_UNIVERSAL(); |
a0d0e21e LW |
859 | if (xsinit) |
860 | (*xsinit)(); /* in case linked C routines want magical variables */ | |
748a9306 LW |
861 | #ifdef VMS |
862 | init_os_extras(); | |
863 | #endif | |
93a17b20 | 864 | |
93a17b20 | 865 | init_predump_symbols(); |
8990e307 LW |
866 | if (!do_undump) |
867 | init_postdump_symbols(argc,argv,env); | |
93a17b20 | 868 | |
79072805 LW |
869 | init_lexer(); |
870 | ||
871 | /* now parse the script */ | |
872 | ||
873 | error_count = 0; | |
874 | if (yyparse() || error_count) { | |
875 | if (minus_c) | |
463ee0b2 | 876 | croak("%s had compilation errors.\n", origfilename); |
79072805 | 877 | else { |
463ee0b2 | 878 | croak("Execution of %s aborted due to compilation errors.\n", |
79072805 | 879 | origfilename); |
378cc40b | 880 | } |
79072805 LW |
881 | } |
882 | curcop->cop_line = 0; | |
883 | curstash = defstash; | |
884 | preprocess = FALSE; | |
ab821d7f | 885 | if (e_tmpname) { |
79072805 | 886 | (void)UNLINK(e_tmpname); |
ab821d7f | 887 | Safefree(e_tmpname); |
888 | e_tmpname = Nullch; | |
378cc40b | 889 | } |
a687059c | 890 | |
93a17b20 | 891 | /* now that script is parsed, we can modify record separator */ |
c07a80fd | 892 | SvREFCNT_dec(rs); |
893 | rs = SvREFCNT_inc(nrs); | |
894 | sv_setsv(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), rs); | |
45d8adaa | 895 | |
79072805 LW |
896 | if (do_undump) |
897 | my_unexec(); | |
898 | ||
8990e307 LW |
899 | if (dowarn) |
900 | gv_check(defstash); | |
901 | ||
a0d0e21e LW |
902 | LEAVE; |
903 | FREETMPS; | |
c07a80fd | 904 | |
905 | #ifdef DEBUGGING_MSTATS | |
906 | if ((s=getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) | |
907 | dump_mstats("after compilation:"); | |
908 | #endif | |
909 | ||
a0d0e21e LW |
910 | ENTER; |
911 | restartop = 0; | |
54310121 | 912 | JMPENV_POP; |
79072805 LW |
913 | return 0; |
914 | } | |
915 | ||
916 | int | |
917 | perl_run(sv_interp) | |
93a17b20 | 918 | PerlInterpreter *sv_interp; |
79072805 | 919 | { |
11343788 | 920 | dTHR; |
2ae324a7 | 921 | I32 oldscope; |
22921e25 CS |
922 | dJMPENV; |
923 | int ret; | |
2ae324a7 | 924 | |
79072805 LW |
925 | if (!(curinterp = sv_interp)) |
926 | return 255; | |
2ae324a7 | 927 | |
928 | oldscope = scopestack_ix; | |
929 | ||
22921e25 CS |
930 | JMPENV_PUSH(ret); |
931 | switch (ret) { | |
79072805 LW |
932 | case 1: |
933 | cxstack_ix = -1; /* start context stack again */ | |
934 | break; | |
935 | case 2: | |
f86702cc | 936 | /* my_exit() was called */ |
2ae324a7 | 937 | while (scopestack_ix > oldscope) |
938 | LEAVE; | |
79072805 | 939 | curstash = defstash; |
93a17b20 | 940 | if (endav) |
68dc0745 | 941 | call_list(oldscope, endav); |
a0d0e21e | 942 | FREETMPS; |
c07a80fd | 943 | #ifdef DEBUGGING_MSTATS |
944 | if (getenv("PERL_DEBUG_MSTATS")) | |
945 | dump_mstats("after execution: "); | |
946 | #endif | |
54310121 | 947 | JMPENV_POP; |
f86702cc | 948 | return STATUS_NATIVE_EXPORT; |
79072805 LW |
949 | case 3: |
950 | if (!restartop) { | |
760ac839 | 951 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e | 952 | FREETMPS; |
54310121 | 953 | JMPENV_POP; |
8990e307 | 954 | return 1; |
83025b21 | 955 | } |
6e72f9df | 956 | if (curstack != mainstack) { |
79072805 | 957 | dSP; |
6e72f9df | 958 | SWITCHSTACK(curstack, mainstack); |
79072805 LW |
959 | } |
960 | break; | |
8d063cd8 | 961 | } |
79072805 | 962 | |
760ac839 | 963 | DEBUG_r(PerlIO_printf(PerlIO_stderr(), "%s $` $& $' support.\n", |
6e72f9df | 964 | sawampersand ? "Enabling" : "Omitting")); |
965 | ||
79072805 LW |
966 | if (!restartop) { |
967 | DEBUG_x(dump_all()); | |
760ac839 | 968 | DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); |
11343788 | 969 | #ifdef USE_THREADS |
5dc0d613 MB |
970 | DEBUG_L(PerlIO_printf(Perl_debug_log, "main thread is 0x%lx\n", |
971 | (unsigned long) thr)); | |
11343788 | 972 | #endif /* USE_THREADS */ |
79072805 LW |
973 | |
974 | if (minus_c) { | |
760ac839 | 975 | PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", origfilename); |
79072805 LW |
976 | my_exit(0); |
977 | } | |
a0d0e21e | 978 | if (perldb && DBsingle) |
c750a3ec MB |
979 | sv_setiv(DBsingle, 1); |
980 | if (restartav) | |
97fcbf96 | 981 | call_list(oldscope, restartav); |
45d8adaa | 982 | } |
79072805 LW |
983 | |
984 | /* do it */ | |
985 | ||
986 | if (restartop) { | |
987 | op = restartop; | |
988 | restartop = 0; | |
ab821d7f | 989 | runops(); |
79072805 LW |
990 | } |
991 | else if (main_start) { | |
4fdae800 | 992 | CvDEPTH(main_cv) = 1; |
79072805 | 993 | op = main_start; |
ab821d7f | 994 | runops(); |
79072805 | 995 | } |
79072805 LW |
996 | |
997 | my_exit(0); | |
54310121 | 998 | /* NOTREACHED */ |
a0d0e21e | 999 | return 0; |
79072805 LW |
1000 | } |
1001 | ||
a0d0e21e LW |
1002 | SV* |
1003 | perl_get_sv(name, create) | |
1004 | char* name; | |
1005 | I32 create; | |
1006 | { | |
1007 | GV* gv = gv_fetchpv(name, create, SVt_PV); | |
1008 | if (gv) | |
1009 | return GvSV(gv); | |
1010 | return Nullsv; | |
1011 | } | |
1012 | ||
1013 | AV* | |
1014 | perl_get_av(name, create) | |
1015 | char* name; | |
1016 | I32 create; | |
1017 | { | |
1018 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); | |
1019 | if (create) | |
1020 | return GvAVn(gv); | |
1021 | if (gv) | |
1022 | return GvAV(gv); | |
1023 | return Nullav; | |
1024 | } | |
1025 | ||
1026 | HV* | |
1027 | perl_get_hv(name, create) | |
1028 | char* name; | |
1029 | I32 create; | |
1030 | { | |
1031 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); | |
1032 | if (create) | |
1033 | return GvHVn(gv); | |
1034 | if (gv) | |
1035 | return GvHV(gv); | |
1036 | return Nullhv; | |
1037 | } | |
1038 | ||
1039 | CV* | |
1040 | perl_get_cv(name, create) | |
1041 | char* name; | |
1042 | I32 create; | |
1043 | { | |
1044 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); | |
8ebc5c01 | 1045 | if (create && !GvCVu(gv)) |
774d564b | 1046 | return newSUB(start_subparse(FALSE, 0), |
a0d0e21e | 1047 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
4633a7c4 | 1048 | Nullop, |
a0d0e21e LW |
1049 | Nullop); |
1050 | if (gv) | |
8ebc5c01 | 1051 | return GvCVu(gv); |
a0d0e21e LW |
1052 | return Nullcv; |
1053 | } | |
1054 | ||
79072805 LW |
1055 | /* Be sure to refetch the stack pointer after calling these routines. */ |
1056 | ||
a0d0e21e LW |
1057 | I32 |
1058 | perl_call_argv(subname, flags, argv) | |
8990e307 | 1059 | char *subname; |
a0d0e21e LW |
1060 | I32 flags; /* See G_* flags in cop.h */ |
1061 | register char **argv; /* null terminated arg list */ | |
8990e307 | 1062 | { |
11343788 | 1063 | dTHR; |
a0d0e21e | 1064 | dSP; |
8990e307 | 1065 | |
a0d0e21e LW |
1066 | PUSHMARK(sp); |
1067 | if (argv) { | |
8990e307 | 1068 | while (*argv) { |
a0d0e21e | 1069 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 LW |
1070 | argv++; |
1071 | } | |
a0d0e21e | 1072 | PUTBACK; |
8990e307 | 1073 | } |
a0d0e21e | 1074 | return perl_call_pv(subname, flags); |
8990e307 LW |
1075 | } |
1076 | ||
a0d0e21e LW |
1077 | I32 |
1078 | perl_call_pv(subname, flags) | |
1079 | char *subname; /* name of the subroutine */ | |
1080 | I32 flags; /* See G_* flags in cop.h */ | |
1081 | { | |
1082 | return perl_call_sv((SV*)perl_get_cv(subname, TRUE), flags); | |
1083 | } | |
1084 | ||
1085 | I32 | |
1086 | perl_call_method(methname, flags) | |
1087 | char *methname; /* name of the subroutine */ | |
1088 | I32 flags; /* See G_* flags in cop.h */ | |
1089 | { | |
11343788 | 1090 | dTHR; |
a0d0e21e LW |
1091 | dSP; |
1092 | OP myop; | |
1093 | if (!op) | |
1094 | op = &myop; | |
1095 | XPUSHs(sv_2mortal(newSVpv(methname,0))); | |
1096 | PUTBACK; | |
11343788 | 1097 | pp_method(ARGS); |
a0d0e21e LW |
1098 | return perl_call_sv(*stack_sp--, flags); |
1099 | } | |
1100 | ||
1101 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
1102 | I32 | |
1103 | perl_call_sv(sv, flags) | |
1104 | SV* sv; | |
1105 | I32 flags; /* See G_* flags in cop.h */ | |
1106 | { | |
11343788 | 1107 | dTHR; |
a0d0e21e LW |
1108 | LOGOP myop; /* fake syntax tree node */ |
1109 | SV** sp = stack_sp; | |
aa689395 | 1110 | I32 oldmark; |
a0d0e21e | 1111 | I32 retval; |
a0d0e21e | 1112 | I32 oldscope; |
6e72f9df | 1113 | static CV *DBcv; |
54310121 | 1114 | bool oldcatch = CATCH_GET; |
1115 | dJMPENV; | |
22921e25 | 1116 | int ret; |
1e422769 | 1117 | |
a0d0e21e LW |
1118 | if (flags & G_DISCARD) { |
1119 | ENTER; | |
1120 | SAVETMPS; | |
1121 | } | |
1122 | ||
aa689395 | 1123 | Zero(&myop, 1, LOGOP); |
54310121 | 1124 | myop.op_next = Nullop; |
f51d4af5 | 1125 | if (!(flags & G_NOARGS)) |
aa689395 | 1126 | myop.op_flags |= OPf_STACKED; |
54310121 | 1127 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
1128 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
1129 | OPf_WANT_SCALAR); | |
462e5cf6 | 1130 | SAVEOP(); |
a0d0e21e | 1131 | op = (OP*)&myop; |
aa689395 | 1132 | |
a0d0e21e LW |
1133 | EXTEND(stack_sp, 1); |
1134 | *++stack_sp = sv; | |
aa689395 | 1135 | oldmark = TOPMARK; |
a0d0e21e LW |
1136 | oldscope = scopestack_ix; |
1137 | ||
36477c24 | 1138 | if (perldb && curstash != debstash |
1139 | /* Handle first BEGIN of -d. */ | |
1140 | && (DBcv || (DBcv = GvCV(DBsub))) | |
1141 | /* Try harder, since this may have been a sighandler, thus | |
1142 | * curstash may be meaningless. */ | |
1143 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != debstash)) | |
6e72f9df | 1144 | op->op_private |= OPpENTERSUB_DB; |
a0d0e21e LW |
1145 | |
1146 | if (flags & G_EVAL) { | |
a0d0e21e LW |
1147 | cLOGOP->op_other = op; |
1148 | markstack_ptr--; | |
4633a7c4 LW |
1149 | /* we're trying to emulate pp_entertry() here */ |
1150 | { | |
1151 | register CONTEXT *cx; | |
54310121 | 1152 | I32 gimme = GIMME_V; |
4633a7c4 LW |
1153 | |
1154 | ENTER; | |
1155 | SAVETMPS; | |
1156 | ||
1157 | push_return(op->op_next); | |
1158 | PUSHBLOCK(cx, CXt_EVAL, stack_sp); | |
1159 | PUSHEVAL(cx, 0, 0); | |
1160 | eval_root = op; /* Only needed so that goto works right. */ | |
1161 | ||
1162 | in_eval = 1; | |
1163 | if (flags & G_KEEPERR) | |
1164 | in_eval |= 4; | |
1165 | else | |
1166 | sv_setpv(GvSV(errgv),""); | |
1167 | } | |
a0d0e21e LW |
1168 | markstack_ptr++; |
1169 | ||
22921e25 CS |
1170 | JMPENV_PUSH(ret); |
1171 | switch (ret) { | |
a0d0e21e LW |
1172 | case 0: |
1173 | break; | |
1174 | case 1: | |
f86702cc | 1175 | STATUS_ALL_FAILURE; |
a0d0e21e LW |
1176 | /* FALL THROUGH */ |
1177 | case 2: | |
1178 | /* my_exit() was called */ | |
1179 | curstash = defstash; | |
1180 | FREETMPS; | |
54310121 | 1181 | JMPENV_POP; |
a0d0e21e LW |
1182 | if (statusvalue) |
1183 | croak("Callback called exit"); | |
f86702cc | 1184 | my_exit_jump(); |
a0d0e21e LW |
1185 | /* NOTREACHED */ |
1186 | case 3: | |
1187 | if (restartop) { | |
1188 | op = restartop; | |
1189 | restartop = 0; | |
54310121 | 1190 | break; |
a0d0e21e LW |
1191 | } |
1192 | stack_sp = stack_base + oldmark; | |
1193 | if (flags & G_ARRAY) | |
1194 | retval = 0; | |
1195 | else { | |
1196 | retval = 1; | |
1197 | *++stack_sp = &sv_undef; | |
1198 | } | |
1199 | goto cleanup; | |
1200 | } | |
1201 | } | |
1e422769 | 1202 | else |
54310121 | 1203 | CATCH_SET(TRUE); |
a0d0e21e LW |
1204 | |
1205 | if (op == (OP*)&myop) | |
11343788 | 1206 | op = pp_entersub(ARGS); |
a0d0e21e | 1207 | if (op) |
ab821d7f | 1208 | runops(); |
a0d0e21e | 1209 | retval = stack_sp - (stack_base + oldmark); |
4633a7c4 LW |
1210 | if ((flags & G_EVAL) && !(flags & G_KEEPERR)) |
1211 | sv_setpv(GvSV(errgv),""); | |
a0d0e21e LW |
1212 | |
1213 | cleanup: | |
1214 | if (flags & G_EVAL) { | |
1215 | if (scopestack_ix > oldscope) { | |
a0a2876f LW |
1216 | SV **newsp; |
1217 | PMOP *newpm; | |
1218 | I32 gimme; | |
1219 | register CONTEXT *cx; | |
1220 | I32 optype; | |
1221 | ||
1222 | POPBLOCK(cx,newpm); | |
1223 | POPEVAL(cx); | |
1224 | pop_return(); | |
1225 | curpm = newpm; | |
1226 | LEAVE; | |
a0d0e21e | 1227 | } |
54310121 | 1228 | JMPENV_POP; |
a0d0e21e | 1229 | } |
1e422769 | 1230 | else |
54310121 | 1231 | CATCH_SET(oldcatch); |
1e422769 | 1232 | |
a0d0e21e LW |
1233 | if (flags & G_DISCARD) { |
1234 | stack_sp = stack_base + oldmark; | |
1235 | retval = 0; | |
1236 | FREETMPS; | |
1237 | LEAVE; | |
1238 | } | |
1239 | return retval; | |
1240 | } | |
1241 | ||
6e72f9df | 1242 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 | 1243 | |
a0d0e21e | 1244 | I32 |
4633a7c4 | 1245 | perl_eval_sv(sv, flags) |
8990e307 | 1246 | SV* sv; |
4633a7c4 | 1247 | I32 flags; /* See G_* flags in cop.h */ |
a0d0e21e | 1248 | { |
11343788 | 1249 | dTHR; |
a0d0e21e | 1250 | UNOP myop; /* fake syntax tree node */ |
4633a7c4 LW |
1251 | SV** sp = stack_sp; |
1252 | I32 oldmark = sp - stack_base; | |
1253 | I32 retval; | |
4633a7c4 | 1254 | I32 oldscope; |
54310121 | 1255 | dJMPENV; |
22921e25 | 1256 | int ret; |
79072805 | 1257 | |
4633a7c4 LW |
1258 | if (flags & G_DISCARD) { |
1259 | ENTER; | |
1260 | SAVETMPS; | |
1261 | } | |
1262 | ||
462e5cf6 | 1263 | SAVEOP(); |
79072805 | 1264 | op = (OP*)&myop; |
a0d0e21e | 1265 | Zero(op, 1, UNOP); |
4633a7c4 LW |
1266 | EXTEND(stack_sp, 1); |
1267 | *++stack_sp = sv; | |
1268 | oldscope = scopestack_ix; | |
79072805 | 1269 | |
4633a7c4 LW |
1270 | if (!(flags & G_NOARGS)) |
1271 | myop.op_flags = OPf_STACKED; | |
79072805 | 1272 | myop.op_next = Nullop; |
6e72f9df | 1273 | myop.op_type = OP_ENTEREVAL; |
54310121 | 1274 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
1275 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
1276 | OPf_WANT_SCALAR); | |
6e72f9df | 1277 | if (flags & G_KEEPERR) |
1278 | myop.op_flags |= OPf_SPECIAL; | |
4633a7c4 | 1279 | |
22921e25 CS |
1280 | JMPENV_PUSH(ret); |
1281 | switch (ret) { | |
4633a7c4 LW |
1282 | case 0: |
1283 | break; | |
1284 | case 1: | |
f86702cc | 1285 | STATUS_ALL_FAILURE; |
4633a7c4 LW |
1286 | /* FALL THROUGH */ |
1287 | case 2: | |
1288 | /* my_exit() was called */ | |
1289 | curstash = defstash; | |
1290 | FREETMPS; | |
54310121 | 1291 | JMPENV_POP; |
4633a7c4 LW |
1292 | if (statusvalue) |
1293 | croak("Callback called exit"); | |
f86702cc | 1294 | my_exit_jump(); |
4633a7c4 LW |
1295 | /* NOTREACHED */ |
1296 | case 3: | |
1297 | if (restartop) { | |
1298 | op = restartop; | |
1299 | restartop = 0; | |
54310121 | 1300 | break; |
4633a7c4 LW |
1301 | } |
1302 | stack_sp = stack_base + oldmark; | |
1303 | if (flags & G_ARRAY) | |
1304 | retval = 0; | |
1305 | else { | |
1306 | retval = 1; | |
1307 | *++stack_sp = &sv_undef; | |
1308 | } | |
1309 | goto cleanup; | |
1310 | } | |
1311 | ||
1312 | if (op == (OP*)&myop) | |
11343788 | 1313 | op = pp_entereval(ARGS); |
4633a7c4 | 1314 | if (op) |
ab821d7f | 1315 | runops(); |
4633a7c4 | 1316 | retval = stack_sp - (stack_base + oldmark); |
6e72f9df | 1317 | if (!(flags & G_KEEPERR)) |
4633a7c4 LW |
1318 | sv_setpv(GvSV(errgv),""); |
1319 | ||
1320 | cleanup: | |
54310121 | 1321 | JMPENV_POP; |
4633a7c4 LW |
1322 | if (flags & G_DISCARD) { |
1323 | stack_sp = stack_base + oldmark; | |
1324 | retval = 0; | |
1325 | FREETMPS; | |
1326 | LEAVE; | |
1327 | } | |
1328 | return retval; | |
1329 | } | |
1330 | ||
137443ea | 1331 | SV* |
1332 | perl_eval_pv(p, croak_on_error) | |
1333 | char* p; | |
1334 | I32 croak_on_error; | |
1335 | { | |
e858de61 | 1336 | dTHR; |
137443ea | 1337 | dSP; |
1338 | SV* sv = newSVpv(p, 0); | |
1339 | ||
1340 | PUSHMARK(sp); | |
1341 | perl_eval_sv(sv, G_SCALAR); | |
1342 | SvREFCNT_dec(sv); | |
1343 | ||
1344 | SPAGAIN; | |
1345 | sv = POPs; | |
1346 | PUTBACK; | |
1347 | ||
1348 | if (croak_on_error && SvTRUE(GvSV(errgv))) | |
1349 | croak(SvPVx(GvSV(errgv), na)); | |
1350 | ||
1351 | return sv; | |
1352 | } | |
1353 | ||
4633a7c4 LW |
1354 | /* Require a module. */ |
1355 | ||
1356 | void | |
1357 | perl_require_pv(pv) | |
1358 | char* pv; | |
1359 | { | |
1360 | SV* sv = sv_newmortal(); | |
1361 | sv_setpv(sv, "require '"); | |
1362 | sv_catpv(sv, pv); | |
1363 | sv_catpv(sv, "'"); | |
1364 | perl_eval_sv(sv, G_DISCARD); | |
79072805 LW |
1365 | } |
1366 | ||
79072805 | 1367 | void |
79072805 LW |
1368 | magicname(sym,name,namlen) |
1369 | char *sym; | |
1370 | char *name; | |
1371 | I32 namlen; | |
1372 | { | |
1373 | register GV *gv; | |
1374 | ||
85e6fe83 | 1375 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 LW |
1376 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
1377 | } | |
1378 | ||
ab821d7f | 1379 | static void |
1a30305b | 1380 | usage(name) /* XXX move this out into a module ? */ |
4633a7c4 LW |
1381 | char *name; |
1382 | { | |
ab821d7f | 1383 | /* This message really ought to be max 23 lines. |
1384 | * Removed -h because the user already knows that opton. Others? */ | |
1385 | printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name); | |
4633a7c4 | 1386 | printf("\n -0[octal] specify record separator (\\0, if no argument)"); |
ab821d7f | 1387 | printf("\n -a autosplit mode with -n or -p (splits $_ into @F)"); |
4633a7c4 | 1388 | printf("\n -c check syntax only (runs BEGIN and END blocks)"); |
1a30305b | 1389 | printf("\n -d[:debugger] run scripts under debugger"); |
4633a7c4 | 1390 | printf("\n -D[number/list] set debugging flags (argument is a bit mask or flags)"); |
ab821d7f | 1391 | printf("\n -e 'command' one line of script. Several -e's allowed. Omit [programfile]."); |
1392 | printf("\n -F/pattern/ split() pattern for autosplit (-a). The //'s are optional."); | |
4633a7c4 | 1393 | printf("\n -i[extension] edit <> files in place (make backup if extension supplied)"); |
ab821d7f | 1394 | printf("\n -Idirectory specify @INC/#include directory (may be used more then once)"); |
4633a7c4 | 1395 | printf("\n -l[octal] enable line ending processing, specifies line teminator"); |
ab821d7f | 1396 | printf("\n -[mM][-]module.. executes `use/no module...' before executing your script."); |
4633a7c4 LW |
1397 | printf("\n -n assume 'while (<>) { ... }' loop arround your script"); |
1398 | printf("\n -p assume loop like -n but print line also like sed"); | |
1399 | printf("\n -P run script through C preprocessor before compilation"); | |
4633a7c4 LW |
1400 | printf("\n -s enable some switch parsing for switches after script name"); |
1401 | printf("\n -S look for the script using PATH environment variable"); | |
1402 | printf("\n -T turn on tainting checks"); | |
1403 | printf("\n -u dump core after parsing script"); | |
1404 | printf("\n -U allow unsafe operations"); | |
1405 | printf("\n -v print version number and patchlevel of perl"); | |
1a30305b | 1406 | printf("\n -V[:variable] print perl configuration information"); |
ab821d7f | 1407 | printf("\n -w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT."); |
4633a7c4 LW |
1408 | printf("\n -x[directory] strip off text before #!perl line and perhaps cd to directory\n"); |
1409 | } | |
1410 | ||
79072805 LW |
1411 | /* This routine handles any switches that can be given during run */ |
1412 | ||
1413 | char * | |
1414 | moreswitches(s) | |
1415 | char *s; | |
1416 | { | |
1417 | I32 numlen; | |
c07a80fd | 1418 | U32 rschar; |
79072805 LW |
1419 | |
1420 | switch (*s) { | |
1421 | case '0': | |
c07a80fd | 1422 | rschar = scan_oct(s, 4, &numlen); |
1423 | SvREFCNT_dec(nrs); | |
1424 | if (rschar & ~((U8)~0)) | |
1425 | nrs = &sv_undef; | |
1426 | else if (!rschar && numlen >= 2) | |
1427 | nrs = newSVpv("", 0); | |
1428 | else { | |
1429 | char ch = rschar; | |
1430 | nrs = newSVpv(&ch, 1); | |
79072805 LW |
1431 | } |
1432 | return s + numlen; | |
2304df62 AD |
1433 | case 'F': |
1434 | minus_F = TRUE; | |
a0d0e21e | 1435 | splitstr = savepv(s + 1); |
2304df62 AD |
1436 | s += strlen(s); |
1437 | return s; | |
79072805 LW |
1438 | case 'a': |
1439 | minus_a = TRUE; | |
1440 | s++; | |
1441 | return s; | |
1442 | case 'c': | |
1443 | minus_c = TRUE; | |
1444 | s++; | |
1445 | return s; | |
1446 | case 'd': | |
bbce6d69 | 1447 | forbid_setid("-d"); |
4633a7c4 | 1448 | s++; |
c07a80fd | 1449 | if (*s == ':' || *s == '=') { |
46fc3d4c | 1450 | my_setenv("PERL5DB", form("use Devel::%s;", ++s)); |
4633a7c4 | 1451 | s += strlen(s); |
4633a7c4 | 1452 | } |
a0d0e21e LW |
1453 | if (!perldb) { |
1454 | perldb = TRUE; | |
1455 | init_debugger(); | |
1456 | } | |
79072805 LW |
1457 | return s; |
1458 | case 'D': | |
1459 | #ifdef DEBUGGING | |
bbce6d69 | 1460 | forbid_setid("-D"); |
79072805 | 1461 | if (isALPHA(s[1])) { |
8990e307 | 1462 | static char debopts[] = "psltocPmfrxuLHXD"; |
79072805 LW |
1463 | char *d; |
1464 | ||
93a17b20 | 1465 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
79072805 LW |
1466 | debug |= 1 << (d - debopts); |
1467 | } | |
1468 | else { | |
1469 | debug = atoi(s+1); | |
1470 | for (s++; isDIGIT(*s); s++) ; | |
1471 | } | |
8990e307 | 1472 | debug |= 0x80000000; |
79072805 LW |
1473 | #else |
1474 | warn("Recompile perl with -DDEBUGGING to use -D switch\n"); | |
a0d0e21e | 1475 | for (s++; isALNUM(*s); s++) ; |
79072805 LW |
1476 | #endif |
1477 | /*SUPPRESS 530*/ | |
1478 | return s; | |
4633a7c4 LW |
1479 | case 'h': |
1480 | usage(origargv[0]); | |
1481 | exit(0); | |
79072805 LW |
1482 | case 'i': |
1483 | if (inplace) | |
1484 | Safefree(inplace); | |
a0d0e21e | 1485 | inplace = savepv(s+1); |
79072805 LW |
1486 | /*SUPPRESS 530*/ |
1487 | for (s = inplace; *s && !isSPACE(*s); s++) ; | |
1488 | *s = '\0'; | |
1489 | break; | |
1490 | case 'I': | |
bbce6d69 | 1491 | forbid_setid("-I"); |
79072805 | 1492 | if (*++s) { |
774d564b | 1493 | char *e, *p; |
748a9306 | 1494 | for (e = s; *e && !isSPACE(*e); e++) ; |
774d564b | 1495 | p = savepvn(s, e-s); |
1496 | incpush(p, TRUE); | |
1497 | Safefree(p); | |
748a9306 LW |
1498 | if (*e) |
1499 | return e; | |
79072805 LW |
1500 | } |
1501 | else | |
463ee0b2 | 1502 | croak("No space allowed after -I"); |
79072805 LW |
1503 | break; |
1504 | case 'l': | |
1505 | minus_l = TRUE; | |
1506 | s++; | |
a0d0e21e LW |
1507 | if (ors) |
1508 | Safefree(ors); | |
79072805 | 1509 | if (isDIGIT(*s)) { |
a0d0e21e | 1510 | ors = savepv("\n"); |
79072805 LW |
1511 | orslen = 1; |
1512 | *ors = scan_oct(s, 3 + (*s == '0'), &numlen); | |
1513 | s += numlen; | |
1514 | } | |
1515 | else { | |
c07a80fd | 1516 | if (RsPARA(nrs)) { |
6e72f9df | 1517 | ors = "\n\n"; |
c07a80fd | 1518 | orslen = 2; |
1519 | } | |
1520 | else | |
1521 | ors = SvPV(nrs, orslen); | |
6e72f9df | 1522 | ors = savepvn(ors, orslen); |
79072805 LW |
1523 | } |
1524 | return s; | |
1a30305b | 1525 | case 'M': |
bbce6d69 | 1526 | forbid_setid("-M"); /* XXX ? */ |
1a30305b | 1527 | /* FALL THROUGH */ |
1528 | case 'm': | |
bbce6d69 | 1529 | forbid_setid("-m"); /* XXX ? */ |
1a30305b | 1530 | if (*++s) { |
a5f75d66 | 1531 | char *start; |
11343788 | 1532 | SV *sv; |
a5f75d66 AD |
1533 | char *use = "use "; |
1534 | /* -M-foo == 'no foo' */ | |
1535 | if (*s == '-') { use = "no "; ++s; } | |
11343788 | 1536 | sv = newSVpv(use,0); |
a5f75d66 | 1537 | start = s; |
1a30305b | 1538 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd | 1539 | while(isALNUM(*s) || *s==':') ++s; |
1540 | if (*s != '=') { | |
11343788 | 1541 | sv_catpv(sv, start); |
c07a80fd | 1542 | if (*(start-1) == 'm') { |
1543 | if (*s != '\0') | |
1544 | croak("Can't use '%c' after -mname", *s); | |
11343788 | 1545 | sv_catpv( sv, " ()"); |
c07a80fd | 1546 | } |
1547 | } else { | |
11343788 MB |
1548 | sv_catpvn(sv, start, s-start); |
1549 | sv_catpv(sv, " split(/,/,q{"); | |
1550 | sv_catpv(sv, ++s); | |
1551 | sv_catpv(sv, "})"); | |
c07a80fd | 1552 | } |
1a30305b | 1553 | s += strlen(s); |
c07a80fd | 1554 | if (preambleav == NULL) |
1555 | preambleav = newAV(); | |
11343788 | 1556 | av_push(preambleav, sv); |
1a30305b | 1557 | } |
1558 | else | |
1559 | croak("No space allowed after -%c", *(s-1)); | |
1560 | return s; | |
79072805 LW |
1561 | case 'n': |
1562 | minus_n = TRUE; | |
1563 | s++; | |
1564 | return s; | |
1565 | case 'p': | |
1566 | minus_p = TRUE; | |
1567 | s++; | |
1568 | return s; | |
1569 | case 's': | |
bbce6d69 | 1570 | forbid_setid("-s"); |
79072805 LW |
1571 | doswitches = TRUE; |
1572 | s++; | |
1573 | return s; | |
463ee0b2 | 1574 | case 'T': |
f86702cc | 1575 | if (!tainting) |
9607fc9c | 1576 | croak("Too late for \"-T\" option"); |
463ee0b2 LW |
1577 | s++; |
1578 | return s; | |
79072805 LW |
1579 | case 'u': |
1580 | do_undump = TRUE; | |
1581 | s++; | |
1582 | return s; | |
1583 | case 'U': | |
1584 | unsafe = TRUE; | |
1585 | s++; | |
1586 | return s; | |
1587 | case 'v': | |
a5f75d66 AD |
1588 | #if defined(SUBVERSION) && SUBVERSION > 0 |
1589 | printf("\nThis is perl, version 5.%03d_%02d", PATCHLEVEL, SUBVERSION); | |
1590 | #else | |
1591 | printf("\nThis is perl, version %s",patchlevel); | |
1592 | #endif | |
1a30305b | 1593 | |
44a8e56a | 1594 | printf("\n\nCopyright 1987-1997, Larry Wall\n"); |
79072805 | 1595 | #ifdef MSDOS |
55497cff | 1596 | printf("\n\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); |
1597 | #endif | |
1598 | #ifdef DJGPP | |
1599 | printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n"); | |
4633a7c4 | 1600 | #endif |
79072805 | 1601 | #ifdef OS2 |
5dd60ef7 | 1602 | printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" |
9607fc9c | 1603 | "Version 5 port Copyright (c) 1994-1997, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 | 1604 | #endif |
79072805 | 1605 | #ifdef atarist |
760ac839 | 1606 | printf("atariST series port, ++jrb bammi@cadence.com\n"); |
79072805 | 1607 | #endif |
760ac839 | 1608 | printf("\n\ |
79072805 | 1609 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
760ac839 | 1610 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n"); |
79072805 LW |
1611 | exit(0); |
1612 | case 'w': | |
1613 | dowarn = TRUE; | |
1614 | s++; | |
1615 | return s; | |
a0d0e21e | 1616 | case '*': |
79072805 LW |
1617 | case ' ': |
1618 | if (s[1] == '-') /* Additional switches on #! line. */ | |
1619 | return s+2; | |
1620 | break; | |
a0d0e21e | 1621 | case '-': |
79072805 LW |
1622 | case 0: |
1623 | case '\n': | |
1624 | case '\t': | |
1625 | break; | |
aa689395 | 1626 | #ifdef ALTERNATE_SHEBANG |
1627 | case 'S': /* OS/2 needs -S on "extproc" line. */ | |
1628 | break; | |
1629 | #endif | |
a0d0e21e LW |
1630 | case 'P': |
1631 | if (preprocess) | |
1632 | return s+1; | |
1633 | /* FALL THROUGH */ | |
79072805 | 1634 | default: |
a0d0e21e | 1635 | croak("Can't emulate -%.1s on #! line",s); |
79072805 LW |
1636 | } |
1637 | return Nullch; | |
1638 | } | |
1639 | ||
1640 | /* compliments of Tom Christiansen */ | |
1641 | ||
1642 | /* unexec() can be found in the Gnu emacs distribution */ | |
1643 | ||
1644 | void | |
1645 | my_unexec() | |
1646 | { | |
1647 | #ifdef UNEXEC | |
46fc3d4c | 1648 | SV* prog; |
1649 | SV* file; | |
79072805 LW |
1650 | int status; |
1651 | extern int etext; | |
1652 | ||
46fc3d4c | 1653 | prog = newSVpv(BIN_EXP); |
1654 | sv_catpv(prog, "/perl"); | |
1655 | file = newSVpv(origfilename); | |
1656 | sv_catpv(file, ".perldump"); | |
79072805 | 1657 | |
46fc3d4c | 1658 | status = unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0); |
79072805 | 1659 | if (status) |
46fc3d4c | 1660 | PerlIO_printf(PerlIO_stderr(), "unexec of %s into %s failed!\n", |
1661 | SvPVX(prog), SvPVX(file)); | |
a0d0e21e | 1662 | exit(status); |
79072805 | 1663 | #else |
a5f75d66 AD |
1664 | # ifdef VMS |
1665 | # include <lib$routines.h> | |
1666 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ | |
aa689395 | 1667 | # else |
79072805 | 1668 | ABORT(); /* for use with undump */ |
aa689395 | 1669 | # endif |
a5f75d66 | 1670 | #endif |
79072805 LW |
1671 | } |
1672 | ||
1673 | static void | |
1674 | init_main_stash() | |
1675 | { | |
11343788 | 1676 | dTHR; |
463ee0b2 | 1677 | GV *gv; |
6e72f9df | 1678 | |
1679 | /* Note that strtab is a rather special HV. Assumptions are made | |
1680 | about not iterating on it, and not adding tie magic to it. | |
1681 | It is properly deallocated in perl_destruct() */ | |
1682 | strtab = newHV(); | |
1683 | HvSHAREKEYS_off(strtab); /* mandatory */ | |
1684 | Newz(506,((XPVHV*)SvANY(strtab))->xhv_array, | |
1685 | sizeof(HE*) * (((XPVHV*)SvANY(strtab))->xhv_max + 1), char); | |
1686 | ||
463ee0b2 | 1687 | curstash = defstash = newHV(); |
79072805 | 1688 | curstname = newSVpv("main",4); |
adbc6bb1 LW |
1689 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
1690 | SvREFCNT_dec(GvHV(gv)); | |
1691 | GvHV(gv) = (HV*)SvREFCNT_inc(defstash); | |
463ee0b2 | 1692 | SvREADONLY_on(gv); |
a0d0e21e | 1693 | HvNAME(defstash) = savepv("main"); |
85e6fe83 | 1694 | incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); |
a5f75d66 | 1695 | GvMULTI_on(incgv); |
a0d0e21e | 1696 | defgv = gv_fetchpv("_",TRUE, SVt_PVAV); |
4633a7c4 | 1697 | errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); |
a5f75d66 | 1698 | GvMULTI_on(errgv); |
552a7a9b | 1699 | sv_setpvn(GvSV(errgv), "", 0); |
8990e307 LW |
1700 | curstash = defstash; |
1701 | compiling.cop_stash = defstash; | |
adbc6bb1 | 1702 | debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); |
4633a7c4 LW |
1703 | /* We must init $/ before switches are processed. */ |
1704 | sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1); | |
79072805 LW |
1705 | } |
1706 | ||
a0d0e21e LW |
1707 | #ifdef CAN_PROTOTYPE |
1708 | static void | |
1709 | open_script(char *scriptname, bool dosearch, SV *sv) | |
1710 | #else | |
79072805 LW |
1711 | static void |
1712 | open_script(scriptname,dosearch,sv) | |
1713 | char *scriptname; | |
1714 | bool dosearch; | |
1715 | SV *sv; | |
a0d0e21e | 1716 | #endif |
79072805 LW |
1717 | { |
1718 | char *xfound = Nullch; | |
1719 | char *xfailed = Nullch; | |
1720 | register char *s; | |
1721 | I32 len; | |
a38d6535 LW |
1722 | int retval; |
1723 | #if defined(DOSISH) && !defined(OS2) && !defined(atarist) | |
fc36a67e | 1724 | # define SEARCH_EXTS ".bat", ".cmd", NULL |
1725 | # define MAX_EXT_LEN 4 | |
a38d6535 | 1726 | #endif |
ab821d7f | 1727 | #ifdef VMS |
1728 | # define SEARCH_EXTS ".pl", ".com", NULL | |
fc36a67e | 1729 | # define MAX_EXT_LEN 4 |
ab821d7f | 1730 | #endif |
a38d6535 LW |
1731 | /* additional extensions to try in each dir if scriptname not found */ |
1732 | #ifdef SEARCH_EXTS | |
1733 | char *ext[] = { SEARCH_EXTS }; | |
1734 | int extidx = (strchr(scriptname,'.')) ? -1 : 0; /* has ext already */ | |
fc36a67e | 1735 | #else |
1736 | # define MAX_EXT_LEN 0 | |
a38d6535 | 1737 | #endif |
79072805 | 1738 | |
c07a80fd | 1739 | #ifdef VMS |
6e72f9df | 1740 | if (dosearch) { |
1741 | int hasdir, idx = 0, deftypes = 1; | |
1742 | ||
1743 | hasdir = (strpbrk(scriptname,":[</") != Nullch) ; | |
1744 | /* The first time through, just add SEARCH_EXTS to whatever we | |
1745 | * already have, so we can check for default file types. */ | |
fc36a67e | 1746 | while (deftypes || |
1747 | (!hasdir && my_trnlnm("DCL$PATH",tokenbuf,idx++)) ) | |
1748 | { | |
1749 | if (deftypes) { | |
1750 | deftypes = 0; | |
1751 | *tokenbuf = '\0'; | |
1752 | } | |
1753 | if ((strlen(tokenbuf) + strlen(scriptname) | |
1754 | + MAX_EXT_LEN) >= sizeof tokenbuf) | |
1755 | continue; /* don't search dir with too-long name */ | |
1756 | strcat(tokenbuf, scriptname); | |
c07a80fd | 1757 | #else /* !VMS */ |
93a17b20 | 1758 | if (dosearch && !strchr(scriptname, '/') && (s = getenv("PATH"))) { |
79072805 | 1759 | bufend = s + strlen(s); |
fc36a67e | 1760 | while (s < bufend) { |
1761 | #ifndef atarist | |
1762 | s = delimcpy(tokenbuf, tokenbuf + sizeof tokenbuf, s, bufend, | |
1763 | #ifdef DOSISH | |
1764 | ';', | |
79072805 | 1765 | #else |
fc36a67e | 1766 | ':', |
79072805 | 1767 | #endif |
fc36a67e | 1768 | &len); |
1769 | #else /* atarist */ | |
1770 | for (len = 0; *s && *s != ',' && *s != ';'; len++, s++) { | |
1771 | if (len < sizeof tokenbuf) | |
1772 | tokenbuf[len] = *s; | |
1773 | } | |
1774 | if (len < sizeof tokenbuf) | |
1775 | tokenbuf[len] = '\0'; | |
1776 | #endif /* atarist */ | |
1777 | if (s < bufend) | |
79072805 | 1778 | s++; |
fc36a67e | 1779 | if (len + 1 + strlen(scriptname) + MAX_EXT_LEN >= sizeof tokenbuf) |
1780 | continue; /* don't search dir with too-long name */ | |
1781 | if (len | |
1782 | #if defined(atarist) && !defined(DOSISH) | |
1783 | && tokenbuf[len - 1] != '/' | |
79072805 | 1784 | #endif |
fc36a67e | 1785 | #if defined(atarist) || defined(DOSISH) |
1786 | && tokenbuf[len - 1] != '\\' | |
79072805 | 1787 | #endif |
fc36a67e | 1788 | ) |
1789 | tokenbuf[len++] = '/'; | |
1790 | (void)strcpy(tokenbuf + len, scriptname); | |
c07a80fd | 1791 | #endif /* !VMS */ |
a38d6535 LW |
1792 | |
1793 | #ifdef SEARCH_EXTS | |
1794 | len = strlen(tokenbuf); | |
1795 | if (extidx > 0) /* reset after previous loop */ | |
1796 | extidx = 0; | |
1797 | do { | |
1798 | #endif | |
760ac839 | 1799 | DEBUG_p(PerlIO_printf(Perl_debug_log, "Looking for %s\n",tokenbuf)); |
a38d6535 LW |
1800 | retval = Stat(tokenbuf,&statbuf); |
1801 | #ifdef SEARCH_EXTS | |
1802 | } while ( retval < 0 /* not there */ | |
1803 | && extidx>=0 && ext[extidx] /* try an extension? */ | |
1804 | && strcpy(tokenbuf+len, ext[extidx++]) | |
1805 | ); | |
1806 | #endif | |
1807 | if (retval < 0) | |
79072805 LW |
1808 | continue; |
1809 | if (S_ISREG(statbuf.st_mode) | |
c90c0ff4 | 1810 | && cando(S_IRUSR,TRUE,&statbuf) |
1811 | #ifndef DOSISH | |
1812 | && cando(S_IXUSR,TRUE,&statbuf) | |
1813 | #endif | |
1814 | ) | |
1815 | { | |
79072805 LW |
1816 | xfound = tokenbuf; /* bingo! */ |
1817 | break; | |
1818 | } | |
1819 | if (!xfailed) | |
a0d0e21e | 1820 | xfailed = savepv(tokenbuf); |
79072805 LW |
1821 | } |
1822 | if (!xfound) | |
463ee0b2 | 1823 | croak("Can't execute %s", xfailed ? xfailed : scriptname ); |
79072805 LW |
1824 | if (xfailed) |
1825 | Safefree(xfailed); | |
1826 | scriptname = xfound; | |
1827 | } | |
1828 | ||
96436eeb | 1829 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { |
1830 | char *s = scriptname + 8; | |
1831 | fdscript = atoi(s); | |
1832 | while (isDIGIT(*s)) | |
1833 | s++; | |
1834 | if (*s) | |
1835 | scriptname = s + 1; | |
1836 | } | |
1837 | else | |
1838 | fdscript = -1; | |
ab821d7f | 1839 | origfilename = savepv(e_tmpname ? "-e" : scriptname); |
79072805 LW |
1840 | curcop->cop_filegv = gv_fetchfile(origfilename); |
1841 | if (strEQ(origfilename,"-")) | |
1842 | scriptname = ""; | |
96436eeb | 1843 | if (fdscript >= 0) { |
760ac839 | 1844 | rsfp = PerlIO_fdopen(fdscript,"r"); |
96436eeb | 1845 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
7aa04957 CS |
1846 | if (rsfp) |
1847 | fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ | |
96436eeb | 1848 | #endif |
1849 | } | |
1850 | else if (preprocess) { | |
46fc3d4c | 1851 | char *cpp_cfg = CPPSTDIN; |
1852 | SV *cpp = NEWSV(0,0); | |
1853 | SV *cmd = NEWSV(0,0); | |
1854 | ||
1855 | if (strEQ(cpp_cfg, "cppstdin")) | |
1856 | sv_catpvf(cpp, "%s/", BIN_EXP); | |
1857 | sv_catpv(cpp, cpp_cfg); | |
79072805 | 1858 | |
79072805 | 1859 | sv_catpv(sv,"-I"); |
fed7345c | 1860 | sv_catpv(sv,PRIVLIB_EXP); |
46fc3d4c | 1861 | |
79072805 | 1862 | #ifdef MSDOS |
46fc3d4c | 1863 | sv_setpvf(cmd, "\ |
79072805 LW |
1864 | sed %s -e \"/^[^#]/b\" \ |
1865 | -e \"/^#[ ]*include[ ]/b\" \ | |
1866 | -e \"/^#[ ]*define[ ]/b\" \ | |
1867 | -e \"/^#[ ]*if[ ]/b\" \ | |
1868 | -e \"/^#[ ]*ifdef[ ]/b\" \ | |
1869 | -e \"/^#[ ]*ifndef[ ]/b\" \ | |
1870 | -e \"/^#[ ]*else/b\" \ | |
1871 | -e \"/^#[ ]*elif[ ]/b\" \ | |
1872 | -e \"/^#[ ]*undef[ ]/b\" \ | |
1873 | -e \"/^#[ ]*endif/b\" \ | |
1874 | -e \"s/^#.*//\" \ | |
fc36a67e | 1875 | %s | %_ -C %_ %s", |
79072805 LW |
1876 | (doextract ? "-e \"1,/^#/d\n\"" : ""), |
1877 | #else | |
46fc3d4c | 1878 | sv_setpvf(cmd, "\ |
79072805 LW |
1879 | %s %s -e '/^[^#]/b' \ |
1880 | -e '/^#[ ]*include[ ]/b' \ | |
1881 | -e '/^#[ ]*define[ ]/b' \ | |
1882 | -e '/^#[ ]*if[ ]/b' \ | |
1883 | -e '/^#[ ]*ifdef[ ]/b' \ | |
1884 | -e '/^#[ ]*ifndef[ ]/b' \ | |
1885 | -e '/^#[ ]*else/b' \ | |
1886 | -e '/^#[ ]*elif[ ]/b' \ | |
1887 | -e '/^#[ ]*undef[ ]/b' \ | |
1888 | -e '/^#[ ]*endif/b' \ | |
1889 | -e 's/^[ ]*#.*//' \ | |
fc36a67e | 1890 | %s | %_ -C %_ %s", |
79072805 LW |
1891 | #ifdef LOC_SED |
1892 | LOC_SED, | |
1893 | #else | |
1894 | "sed", | |
1895 | #endif | |
1896 | (doextract ? "-e '1,/^#/d\n'" : ""), | |
1897 | #endif | |
46fc3d4c | 1898 | scriptname, cpp, sv, CPPMINUS); |
79072805 LW |
1899 | doextract = FALSE; |
1900 | #ifdef IAMSUID /* actually, this is caught earlier */ | |
1901 | if (euid != uid && !euid) { /* if running suidperl */ | |
1902 | #ifdef HAS_SETEUID | |
1903 | (void)seteuid(uid); /* musn't stay setuid root */ | |
1904 | #else | |
1905 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1906 | (void)setreuid((Uid_t)-1, uid); |
1907 | #else | |
1908 | #ifdef HAS_SETRESUID | |
1909 | (void)setresuid((Uid_t)-1, uid, (Uid_t)-1); | |
79072805 LW |
1910 | #else |
1911 | setuid(uid); | |
1912 | #endif | |
1913 | #endif | |
85e6fe83 | 1914 | #endif |
79072805 | 1915 | if (geteuid() != uid) |
463ee0b2 | 1916 | croak("Can't do seteuid!\n"); |
79072805 LW |
1917 | } |
1918 | #endif /* IAMSUID */ | |
46fc3d4c | 1919 | rsfp = my_popen(SvPVX(cmd), "r"); |
1920 | SvREFCNT_dec(cmd); | |
1921 | SvREFCNT_dec(cpp); | |
79072805 LW |
1922 | } |
1923 | else if (!*scriptname) { | |
bbce6d69 | 1924 | forbid_setid("program input from stdin"); |
760ac839 | 1925 | rsfp = PerlIO_stdin(); |
79072805 | 1926 | } |
96436eeb | 1927 | else { |
760ac839 | 1928 | rsfp = PerlIO_open(scriptname,"r"); |
96436eeb | 1929 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
7aa04957 CS |
1930 | if (rsfp) |
1931 | fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ | |
96436eeb | 1932 | #endif |
1933 | } | |
5dd60ef7 | 1934 | if (e_tmpname) { |
1935 | e_fp = rsfp; | |
1936 | } | |
7aa04957 | 1937 | if (!rsfp) { |
13281fa4 | 1938 | #ifdef DOSUID |
a687059c | 1939 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
a0d0e21e | 1940 | if (euid && Stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 && |
13281fa4 | 1941 | statbuf.st_mode & (S_ISUID|S_ISGID)) { |
46fc3d4c | 1942 | /* try again */ |
1943 | execv(form("%s/sperl%s", BIN_EXP, patchlevel), origargv); | |
463ee0b2 | 1944 | croak("Can't do setuid\n"); |
13281fa4 LW |
1945 | } |
1946 | #endif | |
1947 | #endif | |
463ee0b2 | 1948 | croak("Can't open perl script \"%s\": %s\n", |
2304df62 | 1949 | SvPVX(GvSV(curcop->cop_filegv)), Strerror(errno)); |
13281fa4 | 1950 | } |
79072805 | 1951 | } |
8d063cd8 | 1952 | |
79072805 | 1953 | static void |
96436eeb | 1954 | validate_suid(validarg, scriptname) |
79072805 | 1955 | char *validarg; |
96436eeb | 1956 | char *scriptname; |
79072805 | 1957 | { |
96436eeb | 1958 | int which; |
1959 | ||
13281fa4 LW |
1960 | /* do we need to emulate setuid on scripts? */ |
1961 | ||
1962 | /* This code is for those BSD systems that have setuid #! scripts disabled | |
1963 | * in the kernel because of a security problem. Merely defining DOSUID | |
1964 | * in perl will not fix that problem, but if you have disabled setuid | |
1965 | * scripts in the kernel, this will attempt to emulate setuid and setgid | |
1966 | * on scripts that have those now-otherwise-useless bits set. The setuid | |
27e2fb84 LW |
1967 | * root version must be called suidperl or sperlN.NNN. If regular perl |
1968 | * discovers that it has opened a setuid script, it calls suidperl with | |
1969 | * the same argv that it had. If suidperl finds that the script it has | |
1970 | * just opened is NOT setuid root, it sets the effective uid back to the | |
1971 | * uid. We don't just make perl setuid root because that loses the | |
1972 | * effective uid we had before invoking perl, if it was different from the | |
1973 | * uid. | |
13281fa4 LW |
1974 | * |
1975 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must | |
1976 | * be defined in suidperl only. suidperl must be setuid root. The | |
1977 | * Configure script will set this up for you if you want it. | |
1978 | */ | |
a687059c | 1979 | |
13281fa4 | 1980 | #ifdef DOSUID |
6e72f9df | 1981 | char *s, *s2; |
a0d0e21e | 1982 | |
760ac839 | 1983 | if (Fstat(PerlIO_fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */ |
463ee0b2 | 1984 | croak("Can't stat script \"%s\"",origfilename); |
96436eeb | 1985 | if (fdscript < 0 && statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 | 1986 | I32 len; |
13281fa4 | 1987 | |
a687059c | 1988 | #ifdef IAMSUID |
fe14fcc3 | 1989 | #ifndef HAS_SETREUID |
a687059c LW |
1990 | /* On this access check to make sure the directories are readable, |
1991 | * there is actually a small window that the user could use to make | |
1992 | * filename point to an accessible directory. So there is a faint | |
1993 | * chance that someone could execute a setuid script down in a | |
1994 | * non-accessible directory. I don't know what to do about that. | |
1995 | * But I don't think it's too important. The manual lies when | |
1996 | * it says access() is useful in setuid programs. | |
1997 | */ | |
463ee0b2 LW |
1998 | if (access(SvPVX(GvSV(curcop->cop_filegv)),1)) /*double check*/ |
1999 | croak("Permission denied"); | |
a687059c LW |
2000 | #else |
2001 | /* If we can swap euid and uid, then we can determine access rights | |
2002 | * with a simple stat of the file, and then compare device and | |
2003 | * inode to make sure we did stat() on the same file we opened. | |
2004 | * Then we just have to make sure he or she can execute it. | |
2005 | */ | |
2006 | { | |
2007 | struct stat tmpstatbuf; | |
2008 | ||
85e6fe83 LW |
2009 | if ( |
2010 | #ifdef HAS_SETREUID | |
2011 | setreuid(euid,uid) < 0 | |
a0d0e21e LW |
2012 | #else |
2013 | # if HAS_SETRESUID | |
85e6fe83 | 2014 | setresuid(euid,uid,(Uid_t)-1) < 0 |
a0d0e21e | 2015 | # endif |
85e6fe83 LW |
2016 | #endif |
2017 | || getuid() != euid || geteuid() != uid) | |
463ee0b2 | 2018 | croak("Can't swap uid and euid"); /* really paranoid */ |
a0d0e21e | 2019 | if (Stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0) |
463ee0b2 | 2020 | croak("Permission denied"); /* testing full pathname here */ |
a687059c LW |
2021 | if (tmpstatbuf.st_dev != statbuf.st_dev || |
2022 | tmpstatbuf.st_ino != statbuf.st_ino) { | |
760ac839 | 2023 | (void)PerlIO_close(rsfp); |
79072805 | 2024 | if (rsfp = my_popen("/bin/mail root","w")) { /* heh, heh */ |
760ac839 | 2025 | PerlIO_printf(rsfp, |
ff0cee69 | 2026 | "User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\ |
2027 | (Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n", | |
2028 | (long)uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino, | |
2029 | (long)statbuf.st_dev, (long)statbuf.st_ino, | |
463ee0b2 | 2030 | SvPVX(GvSV(curcop->cop_filegv)), |
ff0cee69 | 2031 | (long)statbuf.st_uid, (long)statbuf.st_gid); |
79072805 | 2032 | (void)my_pclose(rsfp); |
a687059c | 2033 | } |
463ee0b2 | 2034 | croak("Permission denied\n"); |
a687059c | 2035 | } |
85e6fe83 LW |
2036 | if ( |
2037 | #ifdef HAS_SETREUID | |
2038 | setreuid(uid,euid) < 0 | |
a0d0e21e LW |
2039 | #else |
2040 | # if defined(HAS_SETRESUID) | |
85e6fe83 | 2041 | setresuid(uid,euid,(Uid_t)-1) < 0 |
a0d0e21e | 2042 | # endif |
85e6fe83 LW |
2043 | #endif |
2044 | || getuid() != uid || geteuid() != euid) | |
463ee0b2 | 2045 | croak("Can't reswap uid and euid"); |
27e2fb84 | 2046 | if (!cando(S_IXUSR,FALSE,&statbuf)) /* can real uid exec? */ |
463ee0b2 | 2047 | croak("Permission denied\n"); |
a687059c | 2048 | } |
fe14fcc3 | 2049 | #endif /* HAS_SETREUID */ |
a687059c LW |
2050 | #endif /* IAMSUID */ |
2051 | ||
27e2fb84 | 2052 | if (!S_ISREG(statbuf.st_mode)) |
463ee0b2 | 2053 | croak("Permission denied"); |
27e2fb84 | 2054 | if (statbuf.st_mode & S_IWOTH) |
463ee0b2 | 2055 | croak("Setuid/gid script is writable by world"); |
13281fa4 | 2056 | doswitches = FALSE; /* -s is insecure in suid */ |
79072805 | 2057 | curcop->cop_line++; |
760ac839 LW |
2058 | if (sv_gets(linestr, rsfp, 0) == Nullch || |
2059 | strnNE(SvPV(linestr,na),"#!",2) ) /* required even on Sys V */ | |
463ee0b2 | 2060 | croak("No #! line"); |
760ac839 | 2061 | s = SvPV(linestr,na)+2; |
663a0e37 | 2062 | if (*s == ' ') s++; |
45d8adaa | 2063 | while (!isSPACE(*s)) s++; |
760ac839 | 2064 | for (s2 = s; (s2 > SvPV(linestr,na)+2 && |
6e72f9df | 2065 | (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ; |
2066 | if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ | |
463ee0b2 | 2067 | croak("Not a perl script"); |
a687059c | 2068 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 LW |
2069 | /* |
2070 | * #! arg must be what we saw above. They can invoke it by | |
2071 | * mentioning suidperl explicitly, but they may not add any strange | |
2072 | * arguments beyond what #! says if they do invoke suidperl that way. | |
2073 | */ | |
2074 | len = strlen(validarg); | |
2075 | if (strEQ(validarg," PHOOEY ") || | |
45d8adaa | 2076 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
463ee0b2 | 2077 | croak("Args must match #! line"); |
a687059c LW |
2078 | |
2079 | #ifndef IAMSUID | |
2080 | if (euid != uid && (statbuf.st_mode & S_ISUID) && | |
2081 | euid == statbuf.st_uid) | |
2082 | if (!do_undump) | |
463ee0b2 | 2083 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
2084 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
2085 | #endif /* IAMSUID */ | |
13281fa4 LW |
2086 | |
2087 | if (euid) { /* oops, we're not the setuid root perl */ | |
760ac839 | 2088 | (void)PerlIO_close(rsfp); |
13281fa4 | 2089 | #ifndef IAMSUID |
46fc3d4c | 2090 | /* try again */ |
2091 | execv(form("%s/sperl%s", BIN_EXP, patchlevel), origargv); | |
13281fa4 | 2092 | #endif |
463ee0b2 | 2093 | croak("Can't do setuid\n"); |
13281fa4 LW |
2094 | } |
2095 | ||
83025b21 | 2096 | if (statbuf.st_mode & S_ISGID && statbuf.st_gid != egid) { |
fe14fcc3 | 2097 | #ifdef HAS_SETEGID |
a687059c LW |
2098 | (void)setegid(statbuf.st_gid); |
2099 | #else | |
fe14fcc3 | 2100 | #ifdef HAS_SETREGID |
85e6fe83 LW |
2101 | (void)setregid((Gid_t)-1,statbuf.st_gid); |
2102 | #else | |
2103 | #ifdef HAS_SETRESGID | |
2104 | (void)setresgid((Gid_t)-1,statbuf.st_gid,(Gid_t)-1); | |
a687059c LW |
2105 | #else |
2106 | setgid(statbuf.st_gid); | |
2107 | #endif | |
2108 | #endif | |
85e6fe83 | 2109 | #endif |
83025b21 | 2110 | if (getegid() != statbuf.st_gid) |
463ee0b2 | 2111 | croak("Can't do setegid!\n"); |
83025b21 | 2112 | } |
a687059c LW |
2113 | if (statbuf.st_mode & S_ISUID) { |
2114 | if (statbuf.st_uid != euid) | |
fe14fcc3 | 2115 | #ifdef HAS_SETEUID |
a687059c LW |
2116 | (void)seteuid(statbuf.st_uid); /* all that for this */ |
2117 | #else | |
fe14fcc3 | 2118 | #ifdef HAS_SETREUID |
85e6fe83 LW |
2119 | (void)setreuid((Uid_t)-1,statbuf.st_uid); |
2120 | #else | |
2121 | #ifdef HAS_SETRESUID | |
2122 | (void)setresuid((Uid_t)-1,statbuf.st_uid,(Uid_t)-1); | |
a687059c LW |
2123 | #else |
2124 | setuid(statbuf.st_uid); | |
2125 | #endif | |
2126 | #endif | |
85e6fe83 | 2127 | #endif |
83025b21 | 2128 | if (geteuid() != statbuf.st_uid) |
463ee0b2 | 2129 | croak("Can't do seteuid!\n"); |
a687059c | 2130 | } |
83025b21 | 2131 | else if (uid) { /* oops, mustn't run as root */ |
fe14fcc3 | 2132 | #ifdef HAS_SETEUID |
85e6fe83 | 2133 | (void)seteuid((Uid_t)uid); |
a687059c | 2134 | #else |
fe14fcc3 | 2135 | #ifdef HAS_SETREUID |
85e6fe83 | 2136 | (void)setreuid((Uid_t)-1,(Uid_t)uid); |
a687059c | 2137 | #else |
85e6fe83 LW |
2138 | #ifdef HAS_SETRESUID |
2139 | (void)setresuid((Uid_t)-1,(Uid_t)uid,(Uid_t)-1); | |
2140 | #else | |
2141 | setuid((Uid_t)uid); | |
2142 | #endif | |
a687059c LW |
2143 | #endif |
2144 | #endif | |
83025b21 | 2145 | if (geteuid() != uid) |
463ee0b2 | 2146 | croak("Can't do seteuid!\n"); |
83025b21 | 2147 | } |
748a9306 | 2148 | init_ids(); |
27e2fb84 | 2149 | if (!cando(S_IXUSR,TRUE,&statbuf)) |
463ee0b2 | 2150 | croak("Permission denied\n"); /* they can't do this */ |
13281fa4 LW |
2151 | } |
2152 | #ifdef IAMSUID | |
2153 | else if (preprocess) | |
463ee0b2 | 2154 | croak("-P not allowed for setuid/setgid script\n"); |
96436eeb | 2155 | else if (fdscript >= 0) |
2156 | croak("fd script not allowed in suidperl\n"); | |
13281fa4 | 2157 | else |
463ee0b2 | 2158 | croak("Script is not setuid/setgid in suidperl\n"); |
96436eeb | 2159 | |
2160 | /* We absolutely must clear out any saved ids here, so we */ | |
2161 | /* exec the real perl, substituting fd script for scriptname. */ | |
2162 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ | |
760ac839 LW |
2163 | PerlIO_rewind(rsfp); |
2164 | lseek(PerlIO_fileno(rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
96436eeb | 2165 | for (which = 1; origargv[which] && origargv[which] != scriptname; which++) ; |
2166 | if (!origargv[which]) | |
2167 | croak("Permission denied"); | |
46fc3d4c | 2168 | origargv[which] = savepv(form("/dev/fd/%d/%s", |
2169 | PerlIO_fileno(rsfp), origargv[which])); | |
96436eeb | 2170 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
760ac839 | 2171 | fcntl(PerlIO_fileno(rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb | 2172 | #endif |
46fc3d4c | 2173 | execv(form("%s/perl%s", BIN_EXP, patchlevel), origargv); /* try again */ |
96436eeb | 2174 | croak("Can't do setuid\n"); |
13281fa4 | 2175 | #endif /* IAMSUID */ |
a687059c | 2176 | #else /* !DOSUID */ |
a687059c LW |
2177 | if (euid != uid || egid != gid) { /* (suidperl doesn't exist, in fact) */ |
2178 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW | |
760ac839 | 2179 | Fstat(PerlIO_fileno(rsfp),&statbuf); /* may be either wrapped or real suid */ |
a687059c LW |
2180 | if ((euid != uid && euid == statbuf.st_uid && statbuf.st_mode & S_ISUID) |
2181 | || | |
2182 | (egid != gid && egid == statbuf.st_gid && statbuf.st_mode & S_ISGID) | |
2183 | ) | |
2184 | if (!do_undump) | |
463ee0b2 | 2185 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
2186 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
2187 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ | |
2188 | /* not set-id, must be wrapped */ | |
a687059c | 2189 | } |
13281fa4 | 2190 | #endif /* DOSUID */ |
79072805 | 2191 | } |
13281fa4 | 2192 | |
79072805 LW |
2193 | static void |
2194 | find_beginning() | |
2195 | { | |
6e72f9df | 2196 | register char *s, *s2; |
33b78306 LW |
2197 | |
2198 | /* skip forward in input to the real script? */ | |
2199 | ||
bbce6d69 | 2200 | forbid_setid("-x"); |
33b78306 | 2201 | while (doextract) { |
79072805 | 2202 | if ((s = sv_gets(linestr, rsfp, 0)) == Nullch) |
463ee0b2 | 2203 | croak("No Perl script found in input\n"); |
6e72f9df | 2204 | if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) { |
760ac839 | 2205 | PerlIO_ungetc(rsfp, '\n'); /* to keep line count right */ |
33b78306 | 2206 | doextract = FALSE; |
6e72f9df | 2207 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
2208 | s2 = s; | |
2209 | while (*s == ' ' || *s == '\t') s++; | |
2210 | if (*s++ == '-') { | |
2211 | while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--; | |
2212 | if (strnEQ(s2-4,"perl",4)) | |
2213 | /*SUPPRESS 530*/ | |
2214 | while (s = moreswitches(s)) ; | |
33b78306 | 2215 | } |
79072805 | 2216 | if (cddir && chdir(cddir) < 0) |
463ee0b2 | 2217 | croak("Can't chdir to %s",cddir); |
83025b21 LW |
2218 | } |
2219 | } | |
2220 | } | |
2221 | ||
79072805 | 2222 | static void |
748a9306 | 2223 | init_ids() |
352d5a3a | 2224 | { |
748a9306 LW |
2225 | uid = (int)getuid(); |
2226 | euid = (int)geteuid(); | |
2227 | gid = (int)getgid(); | |
2228 | egid = (int)getegid(); | |
2229 | #ifdef VMS | |
2230 | uid |= gid << 16; | |
2231 | euid |= egid << 16; | |
2232 | #endif | |
4633a7c4 | 2233 | tainting |= (uid && (euid != uid || egid != gid)); |
748a9306 | 2234 | } |
79072805 | 2235 | |
748a9306 | 2236 | static void |
bbce6d69 | 2237 | forbid_setid(s) |
2238 | char *s; | |
2239 | { | |
2240 | if (euid != uid) | |
2241 | croak("No %s allowed while running setuid", s); | |
2242 | if (egid != gid) | |
2243 | croak("No %s allowed while running setgid", s); | |
2244 | } | |
2245 | ||
2246 | static void | |
748a9306 LW |
2247 | init_debugger() |
2248 | { | |
11343788 | 2249 | dTHR; |
79072805 | 2250 | curstash = debstash; |
748a9306 | 2251 | dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); |
79072805 | 2252 | AvREAL_off(dbargs); |
a0d0e21e LW |
2253 | DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); |
2254 | DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); | |
748a9306 LW |
2255 | DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); |
2256 | DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); | |
c07a80fd | 2257 | sv_setiv(DBsingle, 0); |
748a9306 | 2258 | DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); |
c07a80fd | 2259 | sv_setiv(DBtrace, 0); |
748a9306 | 2260 | DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); |
c07a80fd | 2261 | sv_setiv(DBsignal, 0); |
79072805 | 2262 | curstash = defstash; |
352d5a3a LW |
2263 | } |
2264 | ||
11343788 MB |
2265 | void |
2266 | init_stacks(ARGS) | |
2267 | dARGS | |
79072805 | 2268 | { |
6e72f9df | 2269 | curstack = newAV(); |
5f05dabc | 2270 | mainstack = curstack; /* remember in case we switch stacks */ |
2271 | AvREAL_off(curstack); /* not a real array */ | |
6e72f9df | 2272 | av_extend(curstack,127); |
79072805 | 2273 | |
6e72f9df | 2274 | stack_base = AvARRAY(curstack); |
79072805 | 2275 | stack_sp = stack_base; |
8990e307 | 2276 | stack_max = stack_base + 127; |
79072805 | 2277 | |
a5f75d66 AD |
2278 | cxstack_max = 8192 / sizeof(CONTEXT) - 2; /* Use most of 8K. */ |
2279 | New(50,cxstack,cxstack_max + 1,CONTEXT); | |
8990e307 | 2280 | cxstack_ix = -1; |
8990e307 LW |
2281 | |
2282 | New(50,tmps_stack,128,SV*); | |
6d4ff0d2 | 2283 | tmps_floor = -1; |
8990e307 LW |
2284 | tmps_ix = -1; |
2285 | tmps_max = 128; | |
2286 | ||
5f05dabc | 2287 | /* |
2288 | * The following stacks almost certainly should be per-interpreter, | |
2289 | * but for now they're not. XXX | |
2290 | */ | |
2291 | ||
6e72f9df | 2292 | if (markstack) { |
2293 | markstack_ptr = markstack; | |
2294 | } else { | |
2295 | New(54,markstack,64,I32); | |
2296 | markstack_ptr = markstack; | |
2297 | markstack_max = markstack + 64; | |
2298 | } | |
79072805 | 2299 | |
6e72f9df | 2300 | if (scopestack) { |
2301 | scopestack_ix = 0; | |
2302 | } else { | |
2303 | New(54,scopestack,32,I32); | |
2304 | scopestack_ix = 0; | |
2305 | scopestack_max = 32; | |
2306 | } | |
79072805 | 2307 | |
6e72f9df | 2308 | if (savestack) { |
2309 | savestack_ix = 0; | |
2310 | } else { | |
2311 | New(54,savestack,128,ANY); | |
2312 | savestack_ix = 0; | |
2313 | savestack_max = 128; | |
2314 | } | |
79072805 | 2315 | |
6e72f9df | 2316 | if (retstack) { |
2317 | retstack_ix = 0; | |
2318 | } else { | |
2319 | New(54,retstack,16,OP*); | |
2320 | retstack_ix = 0; | |
2321 | retstack_max = 16; | |
5f05dabc | 2322 | } |
378cc40b | 2323 | } |
33b78306 | 2324 | |
6e72f9df | 2325 | static void |
2326 | nuke_stacks() | |
2327 | { | |
e858de61 | 2328 | dTHR; |
6e72f9df | 2329 | Safefree(cxstack); |
2330 | Safefree(tmps_stack); | |
5f05dabc | 2331 | DEBUG( { |
2332 | Safefree(debname); | |
2333 | Safefree(debdelim); | |
2334 | } ) | |
378cc40b | 2335 | } |
33b78306 | 2336 | |
760ac839 | 2337 | static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
7aa04957 | 2338 | |
79072805 | 2339 | static void |
8990e307 LW |
2340 | init_lexer() |
2341 | { | |
a0d0e21e | 2342 | tmpfp = rsfp; |
8990e307 LW |
2343 | lex_start(linestr); |
2344 | rsfp = tmpfp; | |
2345 | subname = newSVpv("main",4); | |
2346 | } | |
2347 | ||
2348 | static void | |
79072805 | 2349 | init_predump_symbols() |
45d8adaa | 2350 | { |
11343788 | 2351 | dTHR; |
93a17b20 | 2352 | GV *tmpgv; |
a0d0e21e | 2353 | GV *othergv; |
79072805 | 2354 | |
85e6fe83 | 2355 | sv_setpvn(GvSV(gv_fetchpv("\"", TRUE, SVt_PV)), " ", 1); |
79072805 | 2356 | |
85e6fe83 | 2357 | stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
a5f75d66 | 2358 | GvMULTI_on(stdingv); |
760ac839 | 2359 | IoIFP(GvIOp(stdingv)) = PerlIO_stdin(); |
adbc6bb1 | 2360 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 | 2361 | GvMULTI_on(tmpgv); |
a0d0e21e | 2362 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(stdingv)); |
79072805 | 2363 | |
85e6fe83 | 2364 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 | 2365 | GvMULTI_on(tmpgv); |
760ac839 | 2366 | IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout(); |
4633a7c4 | 2367 | setdefout(tmpgv); |
adbc6bb1 | 2368 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 | 2369 | GvMULTI_on(tmpgv); |
a0d0e21e | 2370 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(defoutgv)); |
79072805 | 2371 | |
a0d0e21e | 2372 | othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
a5f75d66 | 2373 | GvMULTI_on(othergv); |
760ac839 | 2374 | IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr(); |
adbc6bb1 | 2375 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 | 2376 | GvMULTI_on(tmpgv); |
a0d0e21e | 2377 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv)); |
79072805 LW |
2378 | |
2379 | statname = NEWSV(66,0); /* last filename we did stat on */ | |
ab821d7f | 2380 | |
6e72f9df | 2381 | if (!osname) |
2382 | osname = savepv(OSNAME); | |
79072805 | 2383 | } |
33b78306 | 2384 | |
79072805 LW |
2385 | static void |
2386 | init_postdump_symbols(argc,argv,env) | |
2387 | register int argc; | |
2388 | register char **argv; | |
2389 | register char **env; | |
33b78306 | 2390 | { |
79072805 LW |
2391 | char *s; |
2392 | SV *sv; | |
2393 | GV* tmpgv; | |
fe14fcc3 | 2394 | |
79072805 LW |
2395 | argc--,argv++; /* skip name of script */ |
2396 | if (doswitches) { | |
2397 | for (; argc > 0 && **argv == '-'; argc--,argv++) { | |
2398 | if (!argv[0][1]) | |
2399 | break; | |
2400 | if (argv[0][1] == '-') { | |
2401 | argc--,argv++; | |
2402 | break; | |
2403 | } | |
93a17b20 | 2404 | if (s = strchr(argv[0], '=')) { |
79072805 | 2405 | *s++ = '\0'; |
85e6fe83 | 2406 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 LW |
2407 | } |
2408 | else | |
85e6fe83 | 2409 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 | 2410 | } |
79072805 LW |
2411 | } |
2412 | toptarget = NEWSV(0,0); | |
2413 | sv_upgrade(toptarget, SVt_PVFM); | |
2414 | sv_setpvn(toptarget, "", 0); | |
748a9306 | 2415 | bodytarget = NEWSV(0,0); |
79072805 LW |
2416 | sv_upgrade(bodytarget, SVt_PVFM); |
2417 | sv_setpvn(bodytarget, "", 0); | |
2418 | formtarget = bodytarget; | |
2419 | ||
bbce6d69 | 2420 | TAINT; |
85e6fe83 | 2421 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
79072805 LW |
2422 | sv_setpv(GvSV(tmpgv),origfilename); |
2423 | magicname("0", "0", 1); | |
2424 | } | |
85e6fe83 | 2425 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
79072805 | 2426 | sv_setpv(GvSV(tmpgv),origargv[0]); |
85e6fe83 | 2427 | if (argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { |
a5f75d66 | 2428 | GvMULTI_on(argvgv); |
79072805 LW |
2429 | (void)gv_AVadd(argvgv); |
2430 | av_clear(GvAVn(argvgv)); | |
2431 | for (; argc > 0; argc--,argv++) { | |
a0d0e21e | 2432 | av_push(GvAVn(argvgv),newSVpv(argv[0],0)); |
79072805 LW |
2433 | } |
2434 | } | |
85e6fe83 | 2435 | if (envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 | 2436 | HV *hv; |
a5f75d66 | 2437 | GvMULTI_on(envgv); |
79072805 | 2438 | hv = GvHVn(envgv); |
5aabfad6 | 2439 | hv_magic(hv, envgv, 'E'); |
a0d0e21e | 2440 | #ifndef VMS /* VMS doesn't have environ array */ |
4633a7c4 LW |
2441 | /* Note that if the supplied env parameter is actually a copy |
2442 | of the global environ then it may now point to free'd memory | |
2443 | if the environment has been modified since. To avoid this | |
2444 | problem we treat env==NULL as meaning 'use the default' | |
2445 | */ | |
2446 | if (!env) | |
2447 | env = environ; | |
5aabfad6 | 2448 | if (env != environ) |
79072805 LW |
2449 | environ[0] = Nullch; |
2450 | for (; *env; env++) { | |
93a17b20 | 2451 | if (!(s = strchr(*env,'='))) |
79072805 LW |
2452 | continue; |
2453 | *s++ = '\0'; | |
137443ea | 2454 | #ifdef WIN32 |
2455 | (void)strupr(*env); | |
2456 | #endif | |
79072805 LW |
2457 | sv = newSVpv(s--,0); |
2458 | (void)hv_store(hv, *env, s - *env, sv, 0); | |
2459 | *s = '='; | |
fe14fcc3 | 2460 | } |
4550b24a | 2461 | #endif |
2462 | #ifdef DYNAMIC_ENV_FETCH | |
2463 | HvNAME(hv) = savepv(ENV_HV_NAME); | |
2464 | #endif | |
79072805 | 2465 | } |
bbce6d69 | 2466 | TAINT_NOT; |
85e6fe83 | 2467 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
1e422769 | 2468 | sv_setiv(GvSV(tmpgv), (IV)getpid()); |
33b78306 | 2469 | } |
34de22dd | 2470 | |
79072805 LW |
2471 | static void |
2472 | init_perllib() | |
34de22dd | 2473 | { |
85e6fe83 LW |
2474 | char *s; |
2475 | if (!tainting) { | |
552a7a9b | 2476 | #ifndef VMS |
85e6fe83 LW |
2477 | s = getenv("PERL5LIB"); |
2478 | if (s) | |
774d564b | 2479 | incpush(s, TRUE); |
85e6fe83 | 2480 | else |
774d564b | 2481 | incpush(getenv("PERLLIB"), FALSE); |
552a7a9b | 2482 | #else /* VMS */ |
2483 | /* Treat PERL5?LIB as a possible search list logical name -- the | |
2484 | * "natural" VMS idiom for a Unix path string. We allow each | |
2485 | * element to be a set of |-separated directories for compatibility. | |
2486 | */ | |
2487 | char buf[256]; | |
2488 | int idx = 0; | |
2489 | if (my_trnlnm("PERL5LIB",buf,0)) | |
774d564b | 2490 | do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx)); |
552a7a9b | 2491 | else |
774d564b | 2492 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE); |
552a7a9b | 2493 | #endif /* VMS */ |
85e6fe83 | 2494 | } |
34de22dd | 2495 | |
c90c0ff4 | 2496 | /* Use the ~-expanded versions of APPLLIB (undocumented), |
df5cef82 | 2497 | ARCHLIB PRIVLIB SITEARCH SITELIB and OLDARCHLIB |
2498 | */ | |
4633a7c4 | 2499 | #ifdef APPLLIB_EXP |
774d564b | 2500 | incpush(APPLLIB_EXP, FALSE); |
16d20bd9 | 2501 | #endif |
4633a7c4 | 2502 | |
fed7345c | 2503 | #ifdef ARCHLIB_EXP |
774d564b | 2504 | incpush(ARCHLIB_EXP, FALSE); |
a0d0e21e | 2505 | #endif |
fed7345c AD |
2506 | #ifndef PRIVLIB_EXP |
2507 | #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" | |
34de22dd | 2508 | #endif |
774d564b | 2509 | incpush(PRIVLIB_EXP, FALSE); |
4633a7c4 LW |
2510 | |
2511 | #ifdef SITEARCH_EXP | |
774d564b | 2512 | incpush(SITEARCH_EXP, FALSE); |
4633a7c4 LW |
2513 | #endif |
2514 | #ifdef SITELIB_EXP | |
774d564b | 2515 | incpush(SITELIB_EXP, FALSE); |
4633a7c4 LW |
2516 | #endif |
2517 | #ifdef OLDARCHLIB_EXP /* 5.00[01] compatibility */ | |
774d564b | 2518 | incpush(OLDARCHLIB_EXP, FALSE); |
4633a7c4 | 2519 | #endif |
a0d0e21e | 2520 | |
4633a7c4 | 2521 | if (!tainting) |
774d564b | 2522 | incpush(".", FALSE); |
2523 | } | |
2524 | ||
2525 | #if defined(DOSISH) | |
2526 | # define PERLLIB_SEP ';' | |
2527 | #else | |
2528 | # if defined(VMS) | |
2529 | # define PERLLIB_SEP '|' | |
2530 | # else | |
2531 | # define PERLLIB_SEP ':' | |
2532 | # endif | |
2533 | #endif | |
2534 | #ifndef PERLLIB_MANGLE | |
2535 | # define PERLLIB_MANGLE(s,n) (s) | |
2536 | #endif | |
2537 | ||
2538 | static void | |
2539 | incpush(p, addsubdirs) | |
2540 | char *p; | |
2541 | int addsubdirs; | |
2542 | { | |
2543 | SV *subdir = Nullsv; | |
2544 | static char *archpat_auto; | |
2545 | ||
2546 | if (!p) | |
2547 | return; | |
2548 | ||
2549 | if (addsubdirs) { | |
2550 | subdir = newSV(0); | |
2551 | if (!archpat_auto) { | |
2552 | STRLEN len = (sizeof(ARCHNAME) + strlen(patchlevel) | |
2553 | + sizeof("//auto")); | |
2554 | New(55, archpat_auto, len, char); | |
2555 | sprintf(archpat_auto, "/%s/%s/auto", ARCHNAME, patchlevel); | |
aa689395 | 2556 | #ifdef VMS |
2557 | for (len = sizeof(ARCHNAME) + 2; | |
2558 | archpat_auto[len] != '\0' && archpat_auto[len] != '/'; len++) | |
2559 | if (archpat_auto[len] == '.') archpat_auto[len] = '_'; | |
2560 | #endif | |
774d564b | 2561 | } |
2562 | } | |
2563 | ||
2564 | /* Break at all separators */ | |
2565 | while (p && *p) { | |
2566 | SV *libdir = newSV(0); | |
2567 | char *s; | |
2568 | ||
2569 | /* skip any consecutive separators */ | |
2570 | while ( *p == PERLLIB_SEP ) { | |
2571 | /* Uncomment the next line for PATH semantics */ | |
2572 | /* av_push(GvAVn(incgv), newSVpv(".", 1)); */ | |
2573 | p++; | |
2574 | } | |
2575 | ||
2576 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { | |
2577 | sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)), | |
2578 | (STRLEN)(s - p)); | |
2579 | p = s + 1; | |
2580 | } | |
2581 | else { | |
2582 | sv_setpv(libdir, PERLLIB_MANGLE(p, 0)); | |
2583 | p = Nullch; /* break out */ | |
2584 | } | |
2585 | ||
2586 | /* | |
2587 | * BEFORE pushing libdir onto @INC we may first push version- and | |
2588 | * archname-specific sub-directories. | |
2589 | */ | |
2590 | if (addsubdirs) { | |
2591 | struct stat tmpstatbuf; | |
aa689395 | 2592 | #ifdef VMS |
2593 | char *unix; | |
2594 | STRLEN len; | |
774d564b | 2595 | |
aa689395 | 2596 | if ((unix = tounixspec_ts(SvPV(libdir,na),Nullch)) != Nullch) { |
2597 | len = strlen(unix); | |
2598 | while (unix[len-1] == '/') len--; /* Cosmetic */ | |
2599 | sv_usepvn(libdir,unix,len); | |
2600 | } | |
2601 | else | |
2602 | PerlIO_printf(PerlIO_stderr(), | |
2603 | "Failed to unixify @INC element \"%s\"\n", | |
2604 | SvPV(libdir,na)); | |
2605 | #endif | |
4fdae800 | 2606 | /* .../archname/version if -d .../archname/version/auto */ |
774d564b | 2607 | sv_setsv(subdir, libdir); |
2608 | sv_catpv(subdir, archpat_auto); | |
2609 | if (Stat(SvPVX(subdir), &tmpstatbuf) >= 0 && | |
2610 | S_ISDIR(tmpstatbuf.st_mode)) | |
2611 | av_push(GvAVn(incgv), | |
2612 | newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto")); | |
2613 | ||
4fdae800 | 2614 | /* .../archname if -d .../archname/auto */ |
774d564b | 2615 | sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME), |
2616 | strlen(patchlevel) + 1, "", 0); | |
2617 | if (Stat(SvPVX(subdir), &tmpstatbuf) >= 0 && | |
2618 | S_ISDIR(tmpstatbuf.st_mode)) | |
2619 | av_push(GvAVn(incgv), | |
2620 | newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto")); | |
2621 | } | |
2622 | ||
2623 | /* finally push this lib directory on the end of @INC */ | |
2624 | av_push(GvAVn(incgv), libdir); | |
2625 | } | |
2626 | ||
2627 | SvREFCNT_dec(subdir); | |
34de22dd | 2628 | } |
93a17b20 LW |
2629 | |
2630 | void | |
68dc0745 | 2631 | call_list(oldscope, list) |
2ae324a7 | 2632 | I32 oldscope; |
93a17b20 LW |
2633 | AV* list; |
2634 | { | |
11343788 | 2635 | dTHR; |
a0d0e21e | 2636 | line_t oldline = curcop->cop_line; |
22921e25 CS |
2637 | STRLEN len; |
2638 | dJMPENV; | |
2639 | int ret; | |
93a17b20 | 2640 | |
8990e307 LW |
2641 | while (AvFILL(list) >= 0) { |
2642 | CV *cv = (CV*)av_shift(list); | |
93a17b20 | 2643 | |
8990e307 | 2644 | SAVEFREESV(cv); |
a0d0e21e | 2645 | |
22921e25 CS |
2646 | JMPENV_PUSH(ret); |
2647 | switch (ret) { | |
748a9306 | 2648 | case 0: { |
4633a7c4 | 2649 | SV* atsv = GvSV(errgv); |
748a9306 LW |
2650 | PUSHMARK(stack_sp); |
2651 | perl_call_sv((SV*)cv, G_EVAL|G_DISCARD); | |
2652 | (void)SvPV(atsv, len); | |
2653 | if (len) { | |
54310121 | 2654 | JMPENV_POP; |
748a9306 LW |
2655 | curcop = &compiling; |
2656 | curcop->cop_line = oldline; | |
2657 | if (list == beginav) | |
2658 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); | |
2659 | else | |
2660 | sv_catpv(atsv, "END failed--cleanup aborted"); | |
2ae324a7 | 2661 | while (scopestack_ix > oldscope) |
2662 | LEAVE; | |
748a9306 LW |
2663 | croak("%s", SvPVX(atsv)); |
2664 | } | |
a0d0e21e | 2665 | } |
85e6fe83 LW |
2666 | break; |
2667 | case 1: | |
f86702cc | 2668 | STATUS_ALL_FAILURE; |
85e6fe83 LW |
2669 | /* FALL THROUGH */ |
2670 | case 2: | |
2671 | /* my_exit() was called */ | |
2ae324a7 | 2672 | while (scopestack_ix > oldscope) |
2673 | LEAVE; | |
85e6fe83 LW |
2674 | curstash = defstash; |
2675 | if (endav) | |
68dc0745 | 2676 | call_list(oldscope, endav); |
a0d0e21e | 2677 | FREETMPS; |
54310121 | 2678 | JMPENV_POP; |
a0d0e21e LW |
2679 | curcop = &compiling; |
2680 | curcop->cop_line = oldline; | |
85e6fe83 LW |
2681 | if (statusvalue) { |
2682 | if (list == beginav) | |
a0d0e21e | 2683 | croak("BEGIN failed--compilation aborted"); |
85e6fe83 | 2684 | else |
a0d0e21e | 2685 | croak("END failed--cleanup aborted"); |
85e6fe83 | 2686 | } |
f86702cc | 2687 | my_exit_jump(); |
85e6fe83 | 2688 | /* NOTREACHED */ |
85e6fe83 LW |
2689 | case 3: |
2690 | if (!restartop) { | |
760ac839 | 2691 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e | 2692 | FREETMPS; |
85e6fe83 LW |
2693 | break; |
2694 | } | |
54310121 | 2695 | JMPENV_POP; |
a0d0e21e LW |
2696 | curcop = &compiling; |
2697 | curcop->cop_line = oldline; | |
54310121 | 2698 | JMPENV_JUMP(3); |
8990e307 | 2699 | } |
54310121 | 2700 | JMPENV_POP; |
93a17b20 | 2701 | } |
93a17b20 | 2702 | } |
93a17b20 | 2703 | |
f86702cc | 2704 | void |
2705 | my_exit(status) | |
2706 | U32 status; | |
2707 | { | |
5dc0d613 MB |
2708 | dTHR; |
2709 | ||
2710 | #ifdef USE_THREADS | |
2711 | DEBUG_L(PerlIO_printf(Perl_debug_log, "my_exit: thread 0x%lx, status %lu\n", | |
2712 | (unsigned long) thr, (unsigned long) status)); | |
2713 | #endif /* USE_THREADS */ | |
f86702cc | 2714 | switch (status) { |
2715 | case 0: | |
2716 | STATUS_ALL_SUCCESS; | |
2717 | break; | |
2718 | case 1: | |
2719 | STATUS_ALL_FAILURE; | |
2720 | break; | |
2721 | default: | |
2722 | STATUS_NATIVE_SET(status); | |
2723 | break; | |
2724 | } | |
2725 | my_exit_jump(); | |
2726 | } | |
2727 | ||
2728 | void | |
2729 | my_failure_exit() | |
2730 | { | |
2731 | #ifdef VMS | |
2732 | if (vaxc$errno & 1) { | |
4fdae800 | 2733 | if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */ |
2734 | STATUS_NATIVE_SET(44); | |
f86702cc | 2735 | } |
2736 | else { | |
ff0cee69 | 2737 | if (!vaxc$errno && errno) /* unlikely */ |
4fdae800 | 2738 | STATUS_NATIVE_SET(44); |
f86702cc | 2739 | else |
4fdae800 | 2740 | STATUS_NATIVE_SET(vaxc$errno); |
f86702cc | 2741 | } |
2742 | #else | |
2743 | if (errno & 255) | |
2744 | STATUS_POSIX_SET(errno); | |
2745 | else if (STATUS_POSIX == 0) | |
2746 | STATUS_POSIX_SET(255); | |
2747 | #endif | |
2748 | my_exit_jump(); | |
93a17b20 LW |
2749 | } |
2750 | ||
f86702cc | 2751 | static void |
2752 | my_exit_jump() | |
2753 | { | |
e858de61 | 2754 | dTHR; |
f86702cc | 2755 | register CONTEXT *cx; |
2756 | I32 gimme; | |
2757 | SV **newsp; | |
2758 | ||
2759 | if (e_tmpname) { | |
2760 | if (e_fp) { | |
2761 | PerlIO_close(e_fp); | |
2762 | e_fp = Nullfp; | |
2763 | } | |
2764 | (void)UNLINK(e_tmpname); | |
2765 | Safefree(e_tmpname); | |
2766 | e_tmpname = Nullch; | |
2767 | } | |
2768 | ||
2769 | if (cxstack_ix >= 0) { | |
2770 | if (cxstack_ix > 0) | |
2771 | dounwind(0); | |
2772 | POPBLOCK(cx,curpm); | |
2773 | LEAVE; | |
2774 | } | |
ff0cee69 | 2775 | |
54310121 | 2776 | JMPENV_JUMP(2); |
f86702cc | 2777 | } |