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 | |
71be2cbc | 23 | dEXTCONST char rcsid[] = "perl.c\nPatch level: ###\n"; |
463ee0b2 | 24 | |
a687059c LW |
25 | #ifdef IAMSUID |
26 | #ifndef DOSUID | |
27 | #define DOSUID | |
28 | #endif | |
29 | #endif | |
378cc40b | 30 | |
a687059c LW |
31 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
32 | #ifdef DOSUID | |
33 | #undef DOSUID | |
34 | #endif | |
35 | #endif | |
8d063cd8 | 36 | |
8ebc5c01 | 37 | #define I_REINIT \ |
38 | STMT_START { \ | |
39 | chopset = " \n-"; \ | |
40 | copline = NOLINE; \ | |
41 | curcop = &compiling; \ | |
42 | curcopdb = NULL; \ | |
43 | cxstack_ix = -1; \ | |
44 | cxstack_max = 128; \ | |
45 | dbargs = 0; \ | |
46 | dlmax = 128; \ | |
47 | laststatval = -1; \ | |
48 | laststype = OP_STAT; \ | |
49 | maxscream = -1; \ | |
50 | maxsysfd = MAXSYSFD; \ | |
51 | statname = Nullsv; \ | |
52 | tmps_floor = -1; \ | |
53 | tmps_ix = -1; \ | |
54 | op_mask = NULL; \ | |
55 | dlmax = 128; \ | |
56 | laststatval = -1; \ | |
57 | laststype = OP_STAT; \ | |
58 | } STMT_END | |
59 | ||
a0d0e21e | 60 | static void find_beginning _((void)); |
bbce6d69 | 61 | static void forbid_setid _((char *)); |
774d564b | 62 | static void incpush _((char *, int)); |
748a9306 | 63 | static void init_ids _((void)); |
a0d0e21e LW |
64 | static void init_debugger _((void)); |
65 | static void init_lexer _((void)); | |
66 | static void init_main_stash _((void)); | |
67 | static void init_perllib _((void)); | |
68 | static void init_postdump_symbols _((int, char **, char **)); | |
69 | static void init_predump_symbols _((void)); | |
70 | static void init_stacks _((void)); | |
f86702cc | 71 | static void my_exit_jump _((void)) __attribute__((noreturn)); |
6e72f9df | 72 | static void nuke_stacks _((void)); |
a0d0e21e | 73 | static void open_script _((char *, bool, SV *)); |
ab821d7f | 74 | static void usage _((char *)); |
96436eeb | 75 | static void validate_suid _((char *, char*)); |
76 | ||
77 | static int fdscript = -1; | |
79072805 | 78 | |
93a17b20 | 79 | PerlInterpreter * |
79072805 LW |
80 | perl_alloc() |
81 | { | |
93a17b20 | 82 | PerlInterpreter *sv_interp; |
79072805 | 83 | |
8990e307 | 84 | curinterp = 0; |
93a17b20 | 85 | New(53, sv_interp, 1, PerlInterpreter); |
79072805 LW |
86 | return sv_interp; |
87 | } | |
88 | ||
89 | void | |
90 | perl_construct( sv_interp ) | |
93a17b20 | 91 | register PerlInterpreter *sv_interp; |
79072805 LW |
92 | { |
93 | if (!(curinterp = sv_interp)) | |
94 | return; | |
95 | ||
8990e307 | 96 | #ifdef MULTIPLICITY |
93a17b20 | 97 | Zero(sv_interp, 1, PerlInterpreter); |
8990e307 | 98 | #endif |
79072805 LW |
99 | |
100 | /* Init the real globals? */ | |
101 | if (!linestr) { | |
102 | linestr = NEWSV(65,80); | |
ed6116ce | 103 | sv_upgrade(linestr,SVt_PVIV); |
79072805 | 104 | |
6e72f9df | 105 | if (!SvREADONLY(&sv_undef)) { |
106 | SvREADONLY_on(&sv_undef); | |
79072805 | 107 | |
6e72f9df | 108 | sv_setpv(&sv_no,No); |
109 | SvNV(&sv_no); | |
110 | SvREADONLY_on(&sv_no); | |
79072805 | 111 | |
6e72f9df | 112 | sv_setpv(&sv_yes,Yes); |
113 | SvNV(&sv_yes); | |
114 | SvREADONLY_on(&sv_yes); | |
115 | } | |
79072805 | 116 | |
c07a80fd | 117 | nrs = newSVpv("\n", 1); |
118 | rs = SvREFCNT_inc(nrs); | |
119 | ||
44a8e56a | 120 | pidstatus = newHV(); |
121 | ||
79072805 LW |
122 | #ifdef MSDOS |
123 | /* | |
124 | * There is no way we can refer to them from Perl so close them to save | |
125 | * space. The other alternative would be to provide STDAUX and STDPRN | |
126 | * filehandles. | |
127 | */ | |
128 | (void)fclose(stdaux); | |
129 | (void)fclose(stdprn); | |
130 | #endif | |
131 | } | |
132 | ||
8990e307 | 133 | #ifdef MULTIPLICITY |
8ebc5c01 | 134 | I_REINIT; |
135 | perl_destruct_level = 1; | |
136 | #else | |
137 | if(perl_destruct_level > 0) | |
138 | I_REINIT; | |
79072805 LW |
139 | #endif |
140 | ||
748a9306 | 141 | init_ids(); |
a5f75d66 | 142 | |
f86702cc | 143 | STATUS_ALL_SUCCESS; |
144 | ||
36477c24 | 145 | SET_NUMERIC_STANDARD(); |
a5f75d66 | 146 | #if defined(SUBVERSION) && SUBVERSION > 0 |
e2666263 | 147 | sprintf(patchlevel, "%7.5f", (double) 5 |
148 | + ((double) PATCHLEVEL / (double) 1000) | |
149 | + ((double) SUBVERSION / (double) 100000)); | |
a5f75d66 | 150 | #else |
e2666263 | 151 | sprintf(patchlevel, "%5.3f", (double) 5 + |
152 | ((double) PATCHLEVEL / (double) 1000)); | |
a5f75d66 | 153 | #endif |
79072805 | 154 | |
ab821d7f | 155 | #if defined(LOCAL_PATCH_COUNT) |
6e72f9df | 156 | localpatches = local_patches; /* For possible -v */ |
ab821d7f | 157 | #endif |
158 | ||
760ac839 LW |
159 | PerlIO_init(); /* Hook to IO system */ |
160 | ||
79072805 | 161 | fdpid = newAV(); /* for remembering popen pids by fd */ |
8990e307 LW |
162 | |
163 | init_stacks(); | |
164 | ENTER; | |
79072805 LW |
165 | } |
166 | ||
167 | void | |
748a9306 | 168 | perl_destruct(sv_interp) |
93a17b20 | 169 | register PerlInterpreter *sv_interp; |
79072805 | 170 | { |
748a9306 | 171 | int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
8990e307 | 172 | I32 last_sv_count; |
a0d0e21e | 173 | HV *hv; |
8990e307 | 174 | |
79072805 LW |
175 | if (!(curinterp = sv_interp)) |
176 | return; | |
748a9306 LW |
177 | |
178 | destruct_level = perl_destruct_level; | |
4633a7c4 LW |
179 | #ifdef DEBUGGING |
180 | { | |
181 | char *s; | |
5f05dabc | 182 | if (s = getenv("PERL_DESTRUCT_LEVEL")) { |
183 | int i = atoi(s); | |
184 | if (destruct_level < i) | |
185 | destruct_level = i; | |
186 | } | |
4633a7c4 LW |
187 | } |
188 | #endif | |
189 | ||
5f05dabc | 190 | /* unhook hooks which will soon be, or use, destroyed data */ |
191 | SvREFCNT_dec(warnhook); | |
192 | warnhook = Nullsv; | |
193 | SvREFCNT_dec(diehook); | |
194 | diehook = Nullsv; | |
195 | SvREFCNT_dec(parsehook); | |
196 | parsehook = Nullsv; | |
197 | ||
8990e307 | 198 | LEAVE; |
a0d0e21e LW |
199 | FREETMPS; |
200 | ||
ff0cee69 | 201 | /* We must account for everything. */ |
202 | ||
203 | /* Destroy the main CV and syntax tree */ | |
6e72f9df | 204 | if (main_root) { |
205 | curpad = AvARRAY(comppad); | |
206 | op_free(main_root); | |
ff0cee69 | 207 | main_root = Nullop; |
a0d0e21e | 208 | } |
ff0cee69 | 209 | main_start = Nullop; |
210 | SvREFCNT_dec(main_cv); | |
211 | main_cv = Nullcv; | |
212 | ||
a0d0e21e LW |
213 | if (sv_objcount) { |
214 | /* | |
215 | * Try to destruct global references. We do this first so that the | |
216 | * destructors and destructees still exist. Some sv's might remain. | |
217 | * Non-referenced objects are on their own. | |
218 | */ | |
219 | ||
220 | dirty = TRUE; | |
221 | sv_clean_objs(); | |
8990e307 LW |
222 | } |
223 | ||
a0d0e21e | 224 | if (destruct_level == 0){ |
8990e307 | 225 | |
a0d0e21e LW |
226 | DEBUG_P(debprofdump()); |
227 | ||
228 | /* The exit() function will do everything that needs doing. */ | |
229 | return; | |
230 | } | |
5dd60ef7 | 231 | |
5f05dabc | 232 | /* loosen bonds of global variables */ |
233 | ||
8ebc5c01 | 234 | if(rsfp) { |
235 | (void)PerlIO_close(rsfp); | |
236 | rsfp = Nullfp; | |
237 | } | |
238 | ||
239 | /* Filters for program text */ | |
240 | SvREFCNT_dec(rsfp_filters); | |
241 | rsfp_filters = Nullav; | |
242 | ||
243 | /* switches */ | |
244 | preprocess = FALSE; | |
245 | minus_n = FALSE; | |
246 | minus_p = FALSE; | |
247 | minus_l = FALSE; | |
248 | minus_a = FALSE; | |
249 | minus_F = FALSE; | |
250 | doswitches = FALSE; | |
251 | dowarn = FALSE; | |
252 | doextract = FALSE; | |
253 | sawampersand = FALSE; /* must save all match strings */ | |
254 | sawstudy = FALSE; /* do fbm_instr on all strings */ | |
255 | sawvec = FALSE; | |
256 | unsafe = FALSE; | |
257 | ||
258 | Safefree(inplace); | |
259 | inplace = Nullch; | |
260 | ||
261 | Safefree(e_tmpname); | |
262 | e_tmpname = Nullch; | |
263 | ||
264 | if (e_fp) { | |
265 | PerlIO_close(e_fp); | |
266 | e_fp = Nullfp; | |
267 | } | |
268 | ||
269 | /* magical thingies */ | |
270 | ||
271 | Safefree(ofs); /* $, */ | |
272 | ofs = Nullch; | |
5f05dabc | 273 | |
8ebc5c01 | 274 | Safefree(ors); /* $\ */ |
275 | ors = Nullch; | |
276 | ||
277 | SvREFCNT_dec(nrs); /* $\ helper */ | |
5f05dabc | 278 | nrs = Nullsv; |
279 | ||
8ebc5c01 | 280 | multiline = 0; /* $* */ |
5f05dabc | 281 | |
8ebc5c01 | 282 | SvREFCNT_dec(statname); |
5f05dabc | 283 | statname = Nullsv; |
284 | statgv = Nullgv; | |
5f05dabc | 285 | |
8ebc5c01 | 286 | /* defgv, aka *_ should be taken care of elsewhere */ |
287 | ||
288 | #if 0 /* just about all regexp stuff, seems to be ok */ | |
289 | ||
290 | /* shortcuts to regexp stuff */ | |
291 | leftgv = Nullgv; | |
292 | ampergv = Nullgv; | |
293 | ||
294 | SAVEFREEOP(curpm); | |
295 | SAVEFREEOP(oldlastpm); /* for saving regexp context during debugger */ | |
296 | ||
297 | regprecomp = NULL; /* uncompiled string. */ | |
298 | regparse = NULL; /* Input-scan pointer. */ | |
299 | regxend = NULL; /* End of input for compile */ | |
300 | regnpar = 0; /* () count. */ | |
301 | regcode = NULL; /* Code-emit pointer; ®dummy = don't. */ | |
302 | regsize = 0; /* Code size. */ | |
303 | regnaughty = 0; /* How bad is this pattern? */ | |
304 | regsawback = 0; /* Did we see \1, ...? */ | |
305 | ||
306 | reginput = NULL; /* String-input pointer. */ | |
307 | regbol = NULL; /* Beginning of input, for ^ check. */ | |
308 | regeol = NULL; /* End of input, for $ check. */ | |
309 | regstartp = (char **)NULL; /* Pointer to startp array. */ | |
310 | regendp = (char **)NULL; /* Ditto for endp. */ | |
311 | reglastparen = 0; /* Similarly for lastparen. */ | |
312 | regtill = NULL; /* How far we are required to go. */ | |
313 | regflags = 0; /* are we folding, multilining? */ | |
314 | regprev = (char)NULL; /* char before regbol, \n if none */ | |
315 | ||
316 | #endif /* if 0 */ | |
317 | ||
318 | /* clean up after study() */ | |
319 | SvREFCNT_dec(lastscream); | |
320 | lastscream = Nullsv; | |
321 | Safefree(screamfirst); | |
322 | screamfirst = 0; | |
323 | Safefree(screamnext); | |
324 | screamnext = 0; | |
325 | ||
326 | /* startup and shutdown function lists */ | |
327 | SvREFCNT_dec(beginav); | |
328 | SvREFCNT_dec(endav); | |
5618dfe8 | 329 | beginav = Nullav; |
5618dfe8 CS |
330 | endav = Nullav; |
331 | ||
8ebc5c01 | 332 | /* temp stack during pp_sort() */ |
333 | SvREFCNT_dec(sortstack); | |
334 | sortstack = Nullav; | |
335 | ||
336 | /* shortcuts just get cleared */ | |
337 | envgv = Nullgv; | |
338 | siggv = Nullgv; | |
339 | incgv = Nullgv; | |
340 | errgv = Nullgv; | |
341 | argvgv = Nullgv; | |
342 | argvoutgv = Nullgv; | |
343 | stdingv = Nullgv; | |
344 | last_in_gv = Nullgv; | |
345 | ||
346 | /* reset so print() ends up where we expect */ | |
347 | setdefout(Nullgv); | |
348 | ||
a0d0e21e | 349 | /* Prepare to destruct main symbol table. */ |
5f05dabc | 350 | |
a0d0e21e | 351 | hv = defstash; |
85e6fe83 | 352 | defstash = 0; |
a0d0e21e LW |
353 | SvREFCNT_dec(hv); |
354 | ||
355 | FREETMPS; | |
356 | if (destruct_level >= 2) { | |
357 | if (scopestack_ix != 0) | |
ff0cee69 | 358 | warn("Unbalanced scopes: %ld more ENTERs than LEAVEs\n", |
359 | (long)scopestack_ix); | |
a0d0e21e | 360 | if (savestack_ix != 0) |
ff0cee69 | 361 | warn("Unbalanced saves: %ld more saves than restores\n", |
362 | (long)savestack_ix); | |
a0d0e21e | 363 | if (tmps_floor != -1) |
ff0cee69 | 364 | warn("Unbalanced tmps: %ld more allocs than frees\n", |
365 | (long)tmps_floor + 1); | |
a0d0e21e | 366 | if (cxstack_ix != -1) |
ff0cee69 | 367 | warn("Unbalanced context: %ld more PUSHes than POPs\n", |
368 | (long)cxstack_ix + 1); | |
a0d0e21e | 369 | } |
8990e307 LW |
370 | |
371 | /* Now absolutely destruct everything, somehow or other, loops or no. */ | |
8990e307 | 372 | last_sv_count = 0; |
6e72f9df | 373 | SvFLAGS(strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
8990e307 LW |
374 | while (sv_count != 0 && sv_count != last_sv_count) { |
375 | last_sv_count = sv_count; | |
376 | sv_clean_all(); | |
377 | } | |
6e72f9df | 378 | SvFLAGS(strtab) &= ~SVTYPEMASK; |
379 | SvFLAGS(strtab) |= SVt_PVHV; | |
380 | ||
381 | /* Destruct the global string table. */ | |
382 | { | |
383 | /* Yell and reset the HeVAL() slots that are still holding refcounts, | |
384 | * so that sv_free() won't fail on them. | |
385 | */ | |
386 | I32 riter; | |
387 | I32 max; | |
388 | HE *hent; | |
389 | HE **array; | |
390 | ||
391 | riter = 0; | |
392 | max = HvMAX(strtab); | |
393 | array = HvARRAY(strtab); | |
394 | hent = array[0]; | |
395 | for (;;) { | |
396 | if (hent) { | |
397 | warn("Unbalanced string table refcount: (%d) for \"%s\"", | |
398 | HeVAL(hent) - Nullsv, HeKEY(hent)); | |
399 | HeVAL(hent) = Nullsv; | |
400 | hent = HeNEXT(hent); | |
401 | } | |
402 | if (!hent) { | |
403 | if (++riter > max) | |
404 | break; | |
405 | hent = array[riter]; | |
406 | } | |
407 | } | |
408 | } | |
409 | SvREFCNT_dec(strtab); | |
410 | ||
8990e307 | 411 | if (sv_count != 0) |
ff0cee69 | 412 | warn("Scalars leaked: %ld\n", (long)sv_count); |
6e72f9df | 413 | |
4633a7c4 | 414 | sv_free_arenas(); |
44a8e56a | 415 | |
416 | /* No SVs have survived, need to clean out */ | |
417 | linestr = NULL; | |
418 | pidstatus = Nullhv; | |
6e72f9df | 419 | if (origfilename) |
420 | Safefree(origfilename); | |
421 | nuke_stacks(); | |
422 | hints = 0; /* Reset hints. Should hints be per-interpreter ? */ | |
423 | ||
a0d0e21e | 424 | DEBUG_P(debprofdump()); |
79072805 LW |
425 | } |
426 | ||
427 | void | |
428 | perl_free(sv_interp) | |
93a17b20 | 429 | PerlInterpreter *sv_interp; |
79072805 LW |
430 | { |
431 | if (!(curinterp = sv_interp)) | |
432 | return; | |
433 | Safefree(sv_interp); | |
434 | } | |
ecfc5424 | 435 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) |
a0d0e21e LW |
436 | char *getenv _((char *)); /* Usually in <stdlib.h> */ |
437 | #endif | |
79072805 LW |
438 | |
439 | int | |
a0d0e21e | 440 | perl_parse(sv_interp, xsinit, argc, argv, env) |
93a17b20 | 441 | PerlInterpreter *sv_interp; |
a0d0e21e LW |
442 | void (*xsinit)_((void)); |
443 | int argc; | |
444 | char **argv; | |
79072805 | 445 | char **env; |
8d063cd8 | 446 | { |
79072805 | 447 | register SV *sv; |
8d063cd8 | 448 | register char *s; |
1a30305b | 449 | char *scriptname = NULL; |
a0d0e21e | 450 | VOL bool dosearch = FALSE; |
13281fa4 | 451 | char *validarg = ""; |
2ae324a7 | 452 | I32 oldscope; |
748a9306 | 453 | AV* comppadlist; |
8d063cd8 | 454 | |
a687059c LW |
455 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
456 | #ifdef IAMSUID | |
457 | #undef IAMSUID | |
463ee0b2 | 458 | croak("suidperl is no longer needed since the kernel can now execute\n\ |
a687059c LW |
459 | setuid perl scripts securely.\n"); |
460 | #endif | |
461 | #endif | |
462 | ||
79072805 LW |
463 | if (!(curinterp = sv_interp)) |
464 | return 255; | |
465 | ||
6e72f9df | 466 | #if defined(NeXT) && defined(__DYNAMIC__) |
467 | _dyld_lookup_and_bind | |
468 | ("__environ", (unsigned long *) &environ_pointer, NULL); | |
469 | #endif /* environ */ | |
470 | ||
ac58e20f LW |
471 | origargv = argv; |
472 | origargc = argc; | |
a0d0e21e | 473 | #ifndef VMS /* VMS doesn't have environ array */ |
fe14fcc3 | 474 | origenviron = environ; |
a0d0e21e | 475 | #endif |
ab821d7f | 476 | e_tmpname = Nullch; |
a0d0e21e LW |
477 | |
478 | if (do_undump) { | |
479 | ||
480 | /* Come here if running an undumped a.out. */ | |
481 | ||
482 | origfilename = savepv(argv[0]); | |
483 | do_undump = FALSE; | |
484 | cxstack_ix = -1; /* start label stack again */ | |
748a9306 | 485 | init_ids(); |
a0d0e21e LW |
486 | init_postdump_symbols(argc,argv,env); |
487 | return 0; | |
488 | } | |
489 | ||
ff0cee69 | 490 | if (main_root) { |
491 | curpad = AvARRAY(comppad); | |
a0d0e21e | 492 | op_free(main_root); |
ff0cee69 | 493 | main_root = Nullop; |
494 | } | |
495 | main_start = Nullop; | |
496 | SvREFCNT_dec(main_cv); | |
497 | main_cv = Nullcv; | |
79072805 | 498 | |
f86702cc | 499 | time(&basetime); |
2ae324a7 | 500 | oldscope = scopestack_ix; |
1e422769 | 501 | mustcatch = FALSE; |
f86702cc | 502 | |
a5f75d66 | 503 | switch (Sigsetjmp(top_env,1)) { |
79072805 | 504 | case 1: |
f86702cc | 505 | STATUS_ALL_FAILURE; |
506 | /* FALL THROUGH */ | |
79072805 | 507 | case 2: |
f86702cc | 508 | /* my_exit() was called */ |
2ae324a7 | 509 | while (scopestack_ix > oldscope) |
510 | LEAVE; | |
8990e307 LW |
511 | curstash = defstash; |
512 | if (endav) | |
68dc0745 | 513 | call_list(oldscope, endav); |
f86702cc | 514 | return STATUS_NATIVE_EXPORT; |
79072805 | 515 | case 3: |
1e422769 | 516 | mustcatch = FALSE; |
760ac839 | 517 | PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); |
8990e307 | 518 | return 1; |
79072805 LW |
519 | } |
520 | ||
79072805 LW |
521 | sv_setpvn(linestr,"",0); |
522 | sv = newSVpv("",0); /* first used for -I flags */ | |
8990e307 | 523 | SAVEFREESV(sv); |
79072805 | 524 | init_main_stash(); |
33b78306 | 525 | for (argc--,argv++; argc > 0; argc--,argv++) { |
8d063cd8 LW |
526 | if (argv[0][0] != '-' || !argv[0][1]) |
527 | break; | |
13281fa4 LW |
528 | #ifdef DOSUID |
529 | if (*validarg) | |
530 | validarg = " PHOOEY "; | |
531 | else | |
532 | validarg = argv[0]; | |
533 | #endif | |
534 | s = argv[0]+1; | |
8d063cd8 | 535 | reswitch: |
13281fa4 | 536 | switch (*s) { |
27e2fb84 | 537 | case '0': |
2304df62 | 538 | case 'F': |
378cc40b | 539 | case 'a': |
33b78306 | 540 | case 'c': |
a687059c | 541 | case 'd': |
8d063cd8 | 542 | case 'D': |
4633a7c4 | 543 | case 'h': |
33b78306 | 544 | case 'i': |
fe14fcc3 | 545 | case 'l': |
1a30305b | 546 | case 'M': |
547 | case 'm': | |
33b78306 LW |
548 | case 'n': |
549 | case 'p': | |
79072805 | 550 | case 's': |
33b78306 LW |
551 | case 'u': |
552 | case 'U': | |
553 | case 'v': | |
554 | case 'w': | |
555 | if (s = moreswitches(s)) | |
556 | goto reswitch; | |
8d063cd8 | 557 | break; |
33b78306 | 558 | |
f86702cc | 559 | case 'T': |
560 | tainting = TRUE; | |
561 | s++; | |
562 | goto reswitch; | |
563 | ||
8d063cd8 | 564 | case 'e': |
a687059c | 565 | if (euid != uid || egid != gid) |
463ee0b2 | 566 | croak("No -e allowed in setuid scripts"); |
8d063cd8 | 567 | if (!e_fp) { |
a0d0e21e | 568 | e_tmpname = savepv(TMPPATH); |
a687059c | 569 | (void)mktemp(e_tmpname); |
83025b21 | 570 | if (!*e_tmpname) |
463ee0b2 | 571 | croak("Can't mktemp()"); |
760ac839 | 572 | e_fp = PerlIO_open(e_tmpname,"w"); |
33b78306 | 573 | if (!e_fp) |
463ee0b2 | 574 | croak("Cannot open temporary file"); |
8d063cd8 | 575 | } |
552a7a9b | 576 | if (*++s) |
577 | PerlIO_puts(e_fp,s); | |
578 | else if (argv[1]) { | |
760ac839 | 579 | PerlIO_puts(e_fp,argv[1]); |
33b78306 LW |
580 | argc--,argv++; |
581 | } | |
552a7a9b | 582 | else |
583 | croak("No code specified for -e"); | |
760ac839 | 584 | (void)PerlIO_putc(e_fp,'\n'); |
8d063cd8 LW |
585 | break; |
586 | case 'I': | |
bbce6d69 | 587 | forbid_setid("-I"); |
79072805 LW |
588 | sv_catpv(sv,"-"); |
589 | sv_catpv(sv,s); | |
590 | sv_catpv(sv," "); | |
a687059c | 591 | if (*++s) { |
774d564b | 592 | incpush(s, TRUE); |
378cc40b | 593 | } |
33b78306 | 594 | else if (argv[1]) { |
774d564b | 595 | incpush(argv[1], TRUE); |
79072805 | 596 | sv_catpv(sv,argv[1]); |
8d063cd8 | 597 | argc--,argv++; |
79072805 | 598 | sv_catpv(sv," "); |
8d063cd8 LW |
599 | } |
600 | break; | |
8d063cd8 | 601 | case 'P': |
bbce6d69 | 602 | forbid_setid("-P"); |
8d063cd8 | 603 | preprocess = TRUE; |
13281fa4 | 604 | s++; |
8d063cd8 | 605 | goto reswitch; |
378cc40b | 606 | case 'S': |
bbce6d69 | 607 | forbid_setid("-S"); |
378cc40b | 608 | dosearch = TRUE; |
13281fa4 | 609 | s++; |
378cc40b | 610 | goto reswitch; |
1a30305b | 611 | case 'V': |
612 | if (!preambleav) | |
613 | preambleav = newAV(); | |
614 | av_push(preambleav, newSVpv("use Config qw(myconfig config_vars)",0)); | |
615 | if (*++s != ':') { | |
6e72f9df | 616 | Sv = newSVpv("print myconfig();",0); |
617 | #ifdef VMS | |
618 | sv_catpv(Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\","); | |
619 | #else | |
620 | sv_catpv(Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\","); | |
621 | #endif | |
622 | #if defined(DEBUGGING) || defined(NOEMBED) || defined(MULTIPLICITY) | |
623 | strcpy(buf,"\" Compile-time options:"); | |
624 | # ifdef DEBUGGING | |
625 | strcat(buf," DEBUGGING"); | |
626 | # endif | |
627 | # ifdef NOEMBED | |
628 | strcat(buf," NOEMBED"); | |
629 | # endif | |
630 | # ifdef MULTIPLICITY | |
631 | strcat(buf," MULTIPLICITY"); | |
632 | # endif | |
633 | strcat(buf,"\\n\","); | |
634 | sv_catpv(Sv,buf); | |
635 | #endif | |
636 | #if defined(LOCAL_PATCH_COUNT) | |
637 | if (LOCAL_PATCH_COUNT > 0) | |
638 | { int i; | |
639 | sv_catpv(Sv,"print \" Locally applied patches:\\n\","); | |
640 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { | |
641 | if (localpatches[i]) { | |
642 | sprintf(buf,"\" \\t%s\\n\",",localpatches[i]); | |
643 | sv_catpv(Sv,buf); | |
644 | } | |
645 | } | |
646 | } | |
647 | #endif | |
648 | sprintf(buf,"\" Built under %s\\n\",",OSNAME); | |
649 | sv_catpv(Sv,buf); | |
650 | #ifdef __DATE__ | |
651 | # ifdef __TIME__ | |
652 | sprintf(buf,"\" Compiled at %s %s\\n\"",__DATE__,__TIME__); | |
653 | # else | |
654 | sprintf(buf,"\" Compiled on %s\\n\"",__DATE__); | |
655 | # endif | |
656 | sv_catpv(Sv,buf); | |
657 | #endif | |
658 | sv_catpv(Sv,"; $\"=\"\\n \"; print \" \\@INC:\\n @INC\\n\""); | |
1a30305b | 659 | } |
660 | else { | |
661 | Sv = newSVpv("config_vars(qw(",0); | |
662 | sv_catpv(Sv, ++s); | |
663 | sv_catpv(Sv, "))"); | |
664 | s += strlen(s); | |
665 | } | |
666 | av_push(preambleav, Sv); | |
c07a80fd | 667 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
1a30305b | 668 | goto reswitch; |
33b78306 LW |
669 | case 'x': |
670 | doextract = TRUE; | |
13281fa4 | 671 | s++; |
33b78306 | 672 | if (*s) |
a0d0e21e | 673 | cddir = savepv(s); |
33b78306 | 674 | break; |
8d063cd8 LW |
675 | case '-': |
676 | argc--,argv++; | |
677 | goto switch_end; | |
678 | case 0: | |
679 | break; | |
680 | default: | |
463ee0b2 | 681 | croak("Unrecognized switch: -%s",s); |
8d063cd8 LW |
682 | } |
683 | } | |
684 | switch_end: | |
1a30305b | 685 | if (!scriptname) |
686 | scriptname = argv[0]; | |
8d063cd8 | 687 | if (e_fp) { |
68dc0745 | 688 | if (PerlIO_flush(e_fp) || PerlIO_error(e_fp) || PerlIO_close(e_fp)) { |
689 | #ifndef MULTIPLICITY | |
690 | warn("Did you forget to compile with -DMULTIPLICITY?"); | |
691 | #endif | |
2304df62 | 692 | croak("Can't write to temp file for -e: %s", Strerror(errno)); |
68dc0745 | 693 | } |
ab821d7f | 694 | e_fp = Nullfp; |
8d063cd8 | 695 | argc++,argv--; |
45d8adaa | 696 | scriptname = e_tmpname; |
8d063cd8 | 697 | } |
79072805 LW |
698 | else if (scriptname == Nullch) { |
699 | #ifdef MSDOS | |
760ac839 | 700 | if ( isatty(PerlIO_fileno(PerlIO_stdin())) ) |
55497cff | 701 | moreswitches("h"); |
fe14fcc3 | 702 | #endif |
79072805 LW |
703 | scriptname = "-"; |
704 | } | |
fe14fcc3 | 705 | |
79072805 | 706 | init_perllib(); |
8d063cd8 | 707 | |
79072805 | 708 | open_script(scriptname,dosearch,sv); |
8d063cd8 | 709 | |
96436eeb | 710 | validate_suid(validarg, scriptname); |
378cc40b | 711 | |
79072805 LW |
712 | if (doextract) |
713 | find_beginning(); | |
714 | ||
4fdae800 | 715 | main_cv = compcv = (CV*)NEWSV(1104,0); |
748a9306 | 716 | sv_upgrade((SV *)compcv, SVt_PVCV); |
07055b4c | 717 | CvUNIQUE_on(compcv); |
748a9306 | 718 | |
6e72f9df | 719 | comppad = newAV(); |
79072805 LW |
720 | av_push(comppad, Nullsv); |
721 | curpad = AvARRAY(comppad); | |
6e72f9df | 722 | comppad_name = newAV(); |
8990e307 LW |
723 | comppad_name_fill = 0; |
724 | min_intro_pending = 0; | |
79072805 LW |
725 | padix = 0; |
726 | ||
748a9306 LW |
727 | comppadlist = newAV(); |
728 | AvREAL_off(comppadlist); | |
8e07c86e AD |
729 | av_store(comppadlist, 0, (SV*)comppad_name); |
730 | av_store(comppadlist, 1, (SV*)comppad); | |
748a9306 LW |
731 | CvPADLIST(compcv) = comppadlist; |
732 | ||
6e72f9df | 733 | boot_core_UNIVERSAL(); |
a0d0e21e LW |
734 | if (xsinit) |
735 | (*xsinit)(); /* in case linked C routines want magical variables */ | |
748a9306 LW |
736 | #ifdef VMS |
737 | init_os_extras(); | |
738 | #endif | |
93a17b20 | 739 | |
93a17b20 | 740 | init_predump_symbols(); |
8990e307 LW |
741 | if (!do_undump) |
742 | init_postdump_symbols(argc,argv,env); | |
93a17b20 | 743 | |
79072805 LW |
744 | init_lexer(); |
745 | ||
746 | /* now parse the script */ | |
747 | ||
748 | error_count = 0; | |
749 | if (yyparse() || error_count) { | |
750 | if (minus_c) | |
463ee0b2 | 751 | croak("%s had compilation errors.\n", origfilename); |
79072805 | 752 | else { |
463ee0b2 | 753 | croak("Execution of %s aborted due to compilation errors.\n", |
79072805 | 754 | origfilename); |
378cc40b | 755 | } |
79072805 LW |
756 | } |
757 | curcop->cop_line = 0; | |
758 | curstash = defstash; | |
759 | preprocess = FALSE; | |
ab821d7f | 760 | if (e_tmpname) { |
79072805 | 761 | (void)UNLINK(e_tmpname); |
ab821d7f | 762 | Safefree(e_tmpname); |
763 | e_tmpname = Nullch; | |
378cc40b | 764 | } |
a687059c | 765 | |
93a17b20 | 766 | /* now that script is parsed, we can modify record separator */ |
c07a80fd | 767 | SvREFCNT_dec(rs); |
768 | rs = SvREFCNT_inc(nrs); | |
769 | sv_setsv(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), rs); | |
45d8adaa | 770 | |
79072805 LW |
771 | if (do_undump) |
772 | my_unexec(); | |
773 | ||
8990e307 LW |
774 | if (dowarn) |
775 | gv_check(defstash); | |
776 | ||
a0d0e21e LW |
777 | LEAVE; |
778 | FREETMPS; | |
c07a80fd | 779 | |
780 | #ifdef DEBUGGING_MSTATS | |
781 | if ((s=getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) | |
782 | dump_mstats("after compilation:"); | |
783 | #endif | |
784 | ||
a0d0e21e LW |
785 | ENTER; |
786 | restartop = 0; | |
79072805 LW |
787 | return 0; |
788 | } | |
789 | ||
790 | int | |
791 | perl_run(sv_interp) | |
93a17b20 | 792 | PerlInterpreter *sv_interp; |
79072805 | 793 | { |
2ae324a7 | 794 | I32 oldscope; |
795 | ||
79072805 LW |
796 | if (!(curinterp = sv_interp)) |
797 | return 255; | |
2ae324a7 | 798 | |
799 | oldscope = scopestack_ix; | |
800 | ||
a5f75d66 | 801 | switch (Sigsetjmp(top_env,1)) { |
79072805 LW |
802 | case 1: |
803 | cxstack_ix = -1; /* start context stack again */ | |
804 | break; | |
805 | case 2: | |
f86702cc | 806 | /* my_exit() was called */ |
2ae324a7 | 807 | while (scopestack_ix > oldscope) |
808 | LEAVE; | |
79072805 | 809 | curstash = defstash; |
93a17b20 | 810 | if (endav) |
68dc0745 | 811 | call_list(oldscope, endav); |
a0d0e21e | 812 | FREETMPS; |
c07a80fd | 813 | #ifdef DEBUGGING_MSTATS |
814 | if (getenv("PERL_DEBUG_MSTATS")) | |
815 | dump_mstats("after execution: "); | |
816 | #endif | |
f86702cc | 817 | return STATUS_NATIVE_EXPORT; |
79072805 | 818 | case 3: |
1e422769 | 819 | mustcatch = FALSE; |
79072805 | 820 | if (!restartop) { |
760ac839 | 821 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e | 822 | FREETMPS; |
8990e307 | 823 | return 1; |
83025b21 | 824 | } |
6e72f9df | 825 | if (curstack != mainstack) { |
79072805 | 826 | dSP; |
6e72f9df | 827 | SWITCHSTACK(curstack, mainstack); |
79072805 LW |
828 | } |
829 | break; | |
8d063cd8 | 830 | } |
79072805 | 831 | |
760ac839 | 832 | DEBUG_r(PerlIO_printf(PerlIO_stderr(), "%s $` $& $' support.\n", |
6e72f9df | 833 | sawampersand ? "Enabling" : "Omitting")); |
834 | ||
79072805 LW |
835 | if (!restartop) { |
836 | DEBUG_x(dump_all()); | |
760ac839 | 837 | DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); |
79072805 LW |
838 | |
839 | if (minus_c) { | |
760ac839 | 840 | PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", origfilename); |
79072805 LW |
841 | my_exit(0); |
842 | } | |
a0d0e21e LW |
843 | if (perldb && DBsingle) |
844 | sv_setiv(DBsingle, 1); | |
45d8adaa | 845 | } |
79072805 LW |
846 | |
847 | /* do it */ | |
848 | ||
849 | if (restartop) { | |
850 | op = restartop; | |
851 | restartop = 0; | |
ab821d7f | 852 | runops(); |
79072805 LW |
853 | } |
854 | else if (main_start) { | |
4fdae800 | 855 | CvDEPTH(main_cv) = 1; |
79072805 | 856 | op = main_start; |
ab821d7f | 857 | runops(); |
79072805 | 858 | } |
79072805 LW |
859 | |
860 | my_exit(0); | |
a0d0e21e | 861 | return 0; |
79072805 LW |
862 | } |
863 | ||
a0d0e21e LW |
864 | SV* |
865 | perl_get_sv(name, create) | |
866 | char* name; | |
867 | I32 create; | |
868 | { | |
869 | GV* gv = gv_fetchpv(name, create, SVt_PV); | |
870 | if (gv) | |
871 | return GvSV(gv); | |
872 | return Nullsv; | |
873 | } | |
874 | ||
875 | AV* | |
876 | perl_get_av(name, create) | |
877 | char* name; | |
878 | I32 create; | |
879 | { | |
880 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); | |
881 | if (create) | |
882 | return GvAVn(gv); | |
883 | if (gv) | |
884 | return GvAV(gv); | |
885 | return Nullav; | |
886 | } | |
887 | ||
888 | HV* | |
889 | perl_get_hv(name, create) | |
890 | char* name; | |
891 | I32 create; | |
892 | { | |
893 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); | |
894 | if (create) | |
895 | return GvHVn(gv); | |
896 | if (gv) | |
897 | return GvHV(gv); | |
898 | return Nullhv; | |
899 | } | |
900 | ||
901 | CV* | |
902 | perl_get_cv(name, create) | |
903 | char* name; | |
904 | I32 create; | |
905 | { | |
906 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); | |
8ebc5c01 | 907 | if (create && !GvCVu(gv)) |
774d564b | 908 | return newSUB(start_subparse(FALSE, 0), |
a0d0e21e | 909 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
4633a7c4 | 910 | Nullop, |
a0d0e21e LW |
911 | Nullop); |
912 | if (gv) | |
8ebc5c01 | 913 | return GvCVu(gv); |
a0d0e21e LW |
914 | return Nullcv; |
915 | } | |
916 | ||
79072805 LW |
917 | /* Be sure to refetch the stack pointer after calling these routines. */ |
918 | ||
a0d0e21e LW |
919 | I32 |
920 | perl_call_argv(subname, flags, argv) | |
8990e307 | 921 | char *subname; |
a0d0e21e LW |
922 | I32 flags; /* See G_* flags in cop.h */ |
923 | register char **argv; /* null terminated arg list */ | |
8990e307 | 924 | { |
a0d0e21e | 925 | dSP; |
8990e307 | 926 | |
a0d0e21e LW |
927 | PUSHMARK(sp); |
928 | if (argv) { | |
8990e307 | 929 | while (*argv) { |
a0d0e21e | 930 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 LW |
931 | argv++; |
932 | } | |
a0d0e21e | 933 | PUTBACK; |
8990e307 | 934 | } |
a0d0e21e | 935 | return perl_call_pv(subname, flags); |
8990e307 LW |
936 | } |
937 | ||
a0d0e21e LW |
938 | I32 |
939 | perl_call_pv(subname, flags) | |
940 | char *subname; /* name of the subroutine */ | |
941 | I32 flags; /* See G_* flags in cop.h */ | |
942 | { | |
943 | return perl_call_sv((SV*)perl_get_cv(subname, TRUE), flags); | |
944 | } | |
945 | ||
946 | I32 | |
947 | perl_call_method(methname, flags) | |
948 | char *methname; /* name of the subroutine */ | |
949 | I32 flags; /* See G_* flags in cop.h */ | |
950 | { | |
951 | dSP; | |
952 | OP myop; | |
953 | if (!op) | |
954 | op = &myop; | |
955 | XPUSHs(sv_2mortal(newSVpv(methname,0))); | |
956 | PUTBACK; | |
957 | pp_method(); | |
958 | return perl_call_sv(*stack_sp--, flags); | |
959 | } | |
960 | ||
961 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
962 | I32 | |
963 | perl_call_sv(sv, flags) | |
964 | SV* sv; | |
965 | I32 flags; /* See G_* flags in cop.h */ | |
966 | { | |
967 | LOGOP myop; /* fake syntax tree node */ | |
968 | SV** sp = stack_sp; | |
aa689395 | 969 | I32 oldmark; |
a0d0e21e | 970 | I32 retval; |
a5f75d66 | 971 | Sigjmp_buf oldtop; |
a0d0e21e | 972 | I32 oldscope; |
6e72f9df | 973 | static CV *DBcv; |
1e422769 | 974 | bool oldmustcatch = mustcatch; |
975 | ||
a0d0e21e LW |
976 | if (flags & G_DISCARD) { |
977 | ENTER; | |
978 | SAVETMPS; | |
979 | } | |
980 | ||
aa689395 | 981 | Zero(&myop, 1, LOGOP); |
f51d4af5 | 982 | if (!(flags & G_NOARGS)) |
aa689395 | 983 | myop.op_flags |= OPf_STACKED; |
984 | myop.op_next = Nullop; | |
985 | myop.op_flags |= OPf_KNOW; | |
986 | if (flags & G_ARRAY) | |
987 | myop.op_flags |= OPf_LIST; | |
a0d0e21e LW |
988 | SAVESPTR(op); |
989 | op = (OP*)&myop; | |
aa689395 | 990 | |
a0d0e21e LW |
991 | EXTEND(stack_sp, 1); |
992 | *++stack_sp = sv; | |
aa689395 | 993 | oldmark = TOPMARK; |
a0d0e21e LW |
994 | oldscope = scopestack_ix; |
995 | ||
36477c24 | 996 | if (perldb && curstash != debstash |
997 | /* Handle first BEGIN of -d. */ | |
998 | && (DBcv || (DBcv = GvCV(DBsub))) | |
999 | /* Try harder, since this may have been a sighandler, thus | |
1000 | * curstash may be meaningless. */ | |
1001 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != debstash)) | |
6e72f9df | 1002 | op->op_private |= OPpENTERSUB_DB; |
1003 | ||
a0d0e21e | 1004 | if (flags & G_EVAL) { |
a5f75d66 | 1005 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
a0d0e21e LW |
1006 | |
1007 | cLOGOP->op_other = op; | |
1008 | markstack_ptr--; | |
4633a7c4 LW |
1009 | /* we're trying to emulate pp_entertry() here */ |
1010 | { | |
1011 | register CONTEXT *cx; | |
1012 | I32 gimme = GIMME; | |
1013 | ||
1014 | ENTER; | |
1015 | SAVETMPS; | |
1016 | ||
1017 | push_return(op->op_next); | |
1018 | PUSHBLOCK(cx, CXt_EVAL, stack_sp); | |
1019 | PUSHEVAL(cx, 0, 0); | |
1020 | eval_root = op; /* Only needed so that goto works right. */ | |
1021 | ||
1022 | in_eval = 1; | |
1023 | if (flags & G_KEEPERR) | |
1024 | in_eval |= 4; | |
1025 | else | |
1026 | sv_setpv(GvSV(errgv),""); | |
1027 | } | |
a0d0e21e LW |
1028 | markstack_ptr++; |
1029 | ||
1030 | restart: | |
a5f75d66 | 1031 | switch (Sigsetjmp(top_env,1)) { |
a0d0e21e LW |
1032 | case 0: |
1033 | break; | |
1034 | case 1: | |
f86702cc | 1035 | STATUS_ALL_FAILURE; |
a0d0e21e LW |
1036 | /* FALL THROUGH */ |
1037 | case 2: | |
1038 | /* my_exit() was called */ | |
1039 | curstash = defstash; | |
1040 | FREETMPS; | |
a5f75d66 | 1041 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
1042 | if (statusvalue) |
1043 | croak("Callback called exit"); | |
f86702cc | 1044 | my_exit_jump(); |
a0d0e21e LW |
1045 | /* NOTREACHED */ |
1046 | case 3: | |
1e422769 | 1047 | mustcatch = FALSE; |
a0d0e21e LW |
1048 | if (restartop) { |
1049 | op = restartop; | |
1050 | restartop = 0; | |
1051 | goto restart; | |
1052 | } | |
1053 | stack_sp = stack_base + oldmark; | |
1054 | if (flags & G_ARRAY) | |
1055 | retval = 0; | |
1056 | else { | |
1057 | retval = 1; | |
1058 | *++stack_sp = &sv_undef; | |
1059 | } | |
1060 | goto cleanup; | |
1061 | } | |
1062 | } | |
1e422769 | 1063 | else |
1064 | mustcatch = TRUE; | |
a0d0e21e LW |
1065 | |
1066 | if (op == (OP*)&myop) | |
1067 | op = pp_entersub(); | |
1068 | if (op) | |
ab821d7f | 1069 | runops(); |
a0d0e21e | 1070 | retval = stack_sp - (stack_base + oldmark); |
4633a7c4 LW |
1071 | if ((flags & G_EVAL) && !(flags & G_KEEPERR)) |
1072 | sv_setpv(GvSV(errgv),""); | |
a0d0e21e LW |
1073 | |
1074 | cleanup: | |
1075 | if (flags & G_EVAL) { | |
1076 | if (scopestack_ix > oldscope) { | |
a0a2876f LW |
1077 | SV **newsp; |
1078 | PMOP *newpm; | |
1079 | I32 gimme; | |
1080 | register CONTEXT *cx; | |
1081 | I32 optype; | |
1082 | ||
1083 | POPBLOCK(cx,newpm); | |
1084 | POPEVAL(cx); | |
1085 | pop_return(); | |
1086 | curpm = newpm; | |
1087 | LEAVE; | |
a0d0e21e | 1088 | } |
a5f75d66 | 1089 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e | 1090 | } |
1e422769 | 1091 | else |
1092 | mustcatch = oldmustcatch; | |
1093 | ||
a0d0e21e LW |
1094 | if (flags & G_DISCARD) { |
1095 | stack_sp = stack_base + oldmark; | |
1096 | retval = 0; | |
1097 | FREETMPS; | |
1098 | LEAVE; | |
1099 | } | |
1100 | return retval; | |
1101 | } | |
1102 | ||
6e72f9df | 1103 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 | 1104 | |
a0d0e21e | 1105 | I32 |
4633a7c4 | 1106 | perl_eval_sv(sv, flags) |
8990e307 | 1107 | SV* sv; |
4633a7c4 | 1108 | I32 flags; /* See G_* flags in cop.h */ |
a0d0e21e LW |
1109 | { |
1110 | UNOP myop; /* fake syntax tree node */ | |
4633a7c4 LW |
1111 | SV** sp = stack_sp; |
1112 | I32 oldmark = sp - stack_base; | |
1113 | I32 retval; | |
a5f75d66 | 1114 | Sigjmp_buf oldtop; |
4633a7c4 | 1115 | I32 oldscope; |
79072805 | 1116 | |
4633a7c4 LW |
1117 | if (flags & G_DISCARD) { |
1118 | ENTER; | |
1119 | SAVETMPS; | |
1120 | } | |
1121 | ||
79072805 | 1122 | SAVESPTR(op); |
79072805 | 1123 | op = (OP*)&myop; |
a0d0e21e | 1124 | Zero(op, 1, UNOP); |
4633a7c4 LW |
1125 | EXTEND(stack_sp, 1); |
1126 | *++stack_sp = sv; | |
1127 | oldscope = scopestack_ix; | |
79072805 | 1128 | |
4633a7c4 LW |
1129 | if (!(flags & G_NOARGS)) |
1130 | myop.op_flags = OPf_STACKED; | |
79072805 | 1131 | myop.op_next = Nullop; |
6e72f9df | 1132 | myop.op_type = OP_ENTEREVAL; |
4633a7c4 | 1133 | myop.op_flags |= OPf_KNOW; |
6e72f9df | 1134 | if (flags & G_KEEPERR) |
1135 | myop.op_flags |= OPf_SPECIAL; | |
4633a7c4 | 1136 | if (flags & G_ARRAY) |
6e72f9df | 1137 | myop.op_flags |= OPf_LIST; |
79072805 | 1138 | |
a5f75d66 | 1139 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
4633a7c4 LW |
1140 | |
1141 | restart: | |
a5f75d66 | 1142 | switch (Sigsetjmp(top_env,1)) { |
4633a7c4 LW |
1143 | case 0: |
1144 | break; | |
1145 | case 1: | |
f86702cc | 1146 | STATUS_ALL_FAILURE; |
4633a7c4 LW |
1147 | /* FALL THROUGH */ |
1148 | case 2: | |
1149 | /* my_exit() was called */ | |
1150 | curstash = defstash; | |
1151 | FREETMPS; | |
a5f75d66 | 1152 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
4633a7c4 LW |
1153 | if (statusvalue) |
1154 | croak("Callback called exit"); | |
f86702cc | 1155 | my_exit_jump(); |
4633a7c4 LW |
1156 | /* NOTREACHED */ |
1157 | case 3: | |
1e422769 | 1158 | mustcatch = FALSE; |
4633a7c4 LW |
1159 | if (restartop) { |
1160 | op = restartop; | |
1161 | restartop = 0; | |
1162 | goto restart; | |
1163 | } | |
1164 | stack_sp = stack_base + oldmark; | |
1165 | if (flags & G_ARRAY) | |
1166 | retval = 0; | |
1167 | else { | |
1168 | retval = 1; | |
1169 | *++stack_sp = &sv_undef; | |
1170 | } | |
1171 | goto cleanup; | |
1172 | } | |
1173 | ||
1174 | if (op == (OP*)&myop) | |
1175 | op = pp_entereval(); | |
1176 | if (op) | |
ab821d7f | 1177 | runops(); |
4633a7c4 | 1178 | retval = stack_sp - (stack_base + oldmark); |
6e72f9df | 1179 | if (!(flags & G_KEEPERR)) |
4633a7c4 LW |
1180 | sv_setpv(GvSV(errgv),""); |
1181 | ||
1182 | cleanup: | |
a5f75d66 | 1183 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
4633a7c4 LW |
1184 | if (flags & G_DISCARD) { |
1185 | stack_sp = stack_base + oldmark; | |
1186 | retval = 0; | |
1187 | FREETMPS; | |
1188 | LEAVE; | |
1189 | } | |
1190 | return retval; | |
1191 | } | |
1192 | ||
1193 | /* Require a module. */ | |
1194 | ||
1195 | void | |
1196 | perl_require_pv(pv) | |
1197 | char* pv; | |
1198 | { | |
1199 | SV* sv = sv_newmortal(); | |
1200 | sv_setpv(sv, "require '"); | |
1201 | sv_catpv(sv, pv); | |
1202 | sv_catpv(sv, "'"); | |
1203 | perl_eval_sv(sv, G_DISCARD); | |
79072805 LW |
1204 | } |
1205 | ||
79072805 | 1206 | void |
79072805 LW |
1207 | magicname(sym,name,namlen) |
1208 | char *sym; | |
1209 | char *name; | |
1210 | I32 namlen; | |
1211 | { | |
1212 | register GV *gv; | |
1213 | ||
85e6fe83 | 1214 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 LW |
1215 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
1216 | } | |
1217 | ||
ab821d7f | 1218 | static void |
1a30305b | 1219 | usage(name) /* XXX move this out into a module ? */ |
4633a7c4 LW |
1220 | char *name; |
1221 | { | |
ab821d7f | 1222 | /* This message really ought to be max 23 lines. |
1223 | * Removed -h because the user already knows that opton. Others? */ | |
1224 | printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name); | |
4633a7c4 | 1225 | printf("\n -0[octal] specify record separator (\\0, if no argument)"); |
ab821d7f | 1226 | printf("\n -a autosplit mode with -n or -p (splits $_ into @F)"); |
4633a7c4 | 1227 | printf("\n -c check syntax only (runs BEGIN and END blocks)"); |
1a30305b | 1228 | printf("\n -d[:debugger] run scripts under debugger"); |
4633a7c4 | 1229 | printf("\n -D[number/list] set debugging flags (argument is a bit mask or flags)"); |
ab821d7f | 1230 | printf("\n -e 'command' one line of script. Several -e's allowed. Omit [programfile]."); |
1231 | printf("\n -F/pattern/ split() pattern for autosplit (-a). The //'s are optional."); | |
4633a7c4 | 1232 | printf("\n -i[extension] edit <> files in place (make backup if extension supplied)"); |
ab821d7f | 1233 | printf("\n -Idirectory specify @INC/#include directory (may be used more then once)"); |
4633a7c4 | 1234 | printf("\n -l[octal] enable line ending processing, specifies line teminator"); |
ab821d7f | 1235 | printf("\n -[mM][-]module.. executes `use/no module...' before executing your script."); |
4633a7c4 LW |
1236 | printf("\n -n assume 'while (<>) { ... }' loop arround your script"); |
1237 | printf("\n -p assume loop like -n but print line also like sed"); | |
1238 | printf("\n -P run script through C preprocessor before compilation"); | |
4633a7c4 LW |
1239 | printf("\n -s enable some switch parsing for switches after script name"); |
1240 | printf("\n -S look for the script using PATH environment variable"); | |
1241 | printf("\n -T turn on tainting checks"); | |
1242 | printf("\n -u dump core after parsing script"); | |
1243 | printf("\n -U allow unsafe operations"); | |
1244 | printf("\n -v print version number and patchlevel of perl"); | |
1a30305b | 1245 | printf("\n -V[:variable] print perl configuration information"); |
ab821d7f | 1246 | printf("\n -w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT."); |
4633a7c4 LW |
1247 | printf("\n -x[directory] strip off text before #!perl line and perhaps cd to directory\n"); |
1248 | } | |
1249 | ||
79072805 LW |
1250 | /* This routine handles any switches that can be given during run */ |
1251 | ||
1252 | char * | |
1253 | moreswitches(s) | |
1254 | char *s; | |
1255 | { | |
1256 | I32 numlen; | |
c07a80fd | 1257 | U32 rschar; |
79072805 LW |
1258 | |
1259 | switch (*s) { | |
1260 | case '0': | |
c07a80fd | 1261 | rschar = scan_oct(s, 4, &numlen); |
1262 | SvREFCNT_dec(nrs); | |
1263 | if (rschar & ~((U8)~0)) | |
1264 | nrs = &sv_undef; | |
1265 | else if (!rschar && numlen >= 2) | |
1266 | nrs = newSVpv("", 0); | |
1267 | else { | |
1268 | char ch = rschar; | |
1269 | nrs = newSVpv(&ch, 1); | |
79072805 LW |
1270 | } |
1271 | return s + numlen; | |
2304df62 AD |
1272 | case 'F': |
1273 | minus_F = TRUE; | |
a0d0e21e | 1274 | splitstr = savepv(s + 1); |
2304df62 AD |
1275 | s += strlen(s); |
1276 | return s; | |
79072805 LW |
1277 | case 'a': |
1278 | minus_a = TRUE; | |
1279 | s++; | |
1280 | return s; | |
1281 | case 'c': | |
1282 | minus_c = TRUE; | |
1283 | s++; | |
1284 | return s; | |
1285 | case 'd': | |
bbce6d69 | 1286 | forbid_setid("-d"); |
4633a7c4 | 1287 | s++; |
c07a80fd | 1288 | if (*s == ':' || *s == '=') { |
4633a7c4 LW |
1289 | sprintf(buf, "use Devel::%s;", ++s); |
1290 | s += strlen(s); | |
1291 | my_setenv("PERL5DB",buf); | |
1292 | } | |
a0d0e21e LW |
1293 | if (!perldb) { |
1294 | perldb = TRUE; | |
1295 | init_debugger(); | |
1296 | } | |
79072805 LW |
1297 | return s; |
1298 | case 'D': | |
1299 | #ifdef DEBUGGING | |
bbce6d69 | 1300 | forbid_setid("-D"); |
79072805 | 1301 | if (isALPHA(s[1])) { |
8990e307 | 1302 | static char debopts[] = "psltocPmfrxuLHXD"; |
79072805 LW |
1303 | char *d; |
1304 | ||
93a17b20 | 1305 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
79072805 LW |
1306 | debug |= 1 << (d - debopts); |
1307 | } | |
1308 | else { | |
1309 | debug = atoi(s+1); | |
1310 | for (s++; isDIGIT(*s); s++) ; | |
1311 | } | |
8990e307 | 1312 | debug |= 0x80000000; |
79072805 LW |
1313 | #else |
1314 | warn("Recompile perl with -DDEBUGGING to use -D switch\n"); | |
a0d0e21e | 1315 | for (s++; isALNUM(*s); s++) ; |
79072805 LW |
1316 | #endif |
1317 | /*SUPPRESS 530*/ | |
1318 | return s; | |
4633a7c4 LW |
1319 | case 'h': |
1320 | usage(origargv[0]); | |
1321 | exit(0); | |
79072805 LW |
1322 | case 'i': |
1323 | if (inplace) | |
1324 | Safefree(inplace); | |
a0d0e21e | 1325 | inplace = savepv(s+1); |
79072805 LW |
1326 | /*SUPPRESS 530*/ |
1327 | for (s = inplace; *s && !isSPACE(*s); s++) ; | |
1328 | *s = '\0'; | |
1329 | break; | |
1330 | case 'I': | |
bbce6d69 | 1331 | forbid_setid("-I"); |
79072805 | 1332 | if (*++s) { |
774d564b | 1333 | char *e, *p; |
748a9306 | 1334 | for (e = s; *e && !isSPACE(*e); e++) ; |
774d564b | 1335 | p = savepvn(s, e-s); |
1336 | incpush(p, TRUE); | |
1337 | Safefree(p); | |
748a9306 LW |
1338 | if (*e) |
1339 | return e; | |
79072805 LW |
1340 | } |
1341 | else | |
463ee0b2 | 1342 | croak("No space allowed after -I"); |
79072805 LW |
1343 | break; |
1344 | case 'l': | |
1345 | minus_l = TRUE; | |
1346 | s++; | |
a0d0e21e LW |
1347 | if (ors) |
1348 | Safefree(ors); | |
79072805 | 1349 | if (isDIGIT(*s)) { |
a0d0e21e | 1350 | ors = savepv("\n"); |
79072805 LW |
1351 | orslen = 1; |
1352 | *ors = scan_oct(s, 3 + (*s == '0'), &numlen); | |
1353 | s += numlen; | |
1354 | } | |
1355 | else { | |
c07a80fd | 1356 | if (RsPARA(nrs)) { |
6e72f9df | 1357 | ors = "\n\n"; |
c07a80fd | 1358 | orslen = 2; |
1359 | } | |
1360 | else | |
1361 | ors = SvPV(nrs, orslen); | |
6e72f9df | 1362 | ors = savepvn(ors, orslen); |
79072805 LW |
1363 | } |
1364 | return s; | |
1a30305b | 1365 | case 'M': |
bbce6d69 | 1366 | forbid_setid("-M"); /* XXX ? */ |
1a30305b | 1367 | /* FALL THROUGH */ |
1368 | case 'm': | |
bbce6d69 | 1369 | forbid_setid("-m"); /* XXX ? */ |
1a30305b | 1370 | if (*++s) { |
a5f75d66 AD |
1371 | char *start; |
1372 | char *use = "use "; | |
1373 | /* -M-foo == 'no foo' */ | |
1374 | if (*s == '-') { use = "no "; ++s; } | |
1375 | Sv = newSVpv(use,0); | |
1376 | start = s; | |
1a30305b | 1377 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd | 1378 | while(isALNUM(*s) || *s==':') ++s; |
1379 | if (*s != '=') { | |
1380 | sv_catpv(Sv, start); | |
1381 | if (*(start-1) == 'm') { | |
1382 | if (*s != '\0') | |
1383 | croak("Can't use '%c' after -mname", *s); | |
1384 | sv_catpv( Sv, " ()"); | |
1385 | } | |
1386 | } else { | |
1387 | sv_catpvn(Sv, start, s-start); | |
a5f75d66 | 1388 | sv_catpv(Sv, " split(/,/,q{"); |
c07a80fd | 1389 | sv_catpv(Sv, ++s); |
a5f75d66 | 1390 | sv_catpv(Sv, "})"); |
c07a80fd | 1391 | } |
1a30305b | 1392 | s += strlen(s); |
c07a80fd | 1393 | if (preambleav == NULL) |
1394 | preambleav = newAV(); | |
1395 | av_push(preambleav, Sv); | |
1a30305b | 1396 | } |
1397 | else | |
1398 | croak("No space allowed after -%c", *(s-1)); | |
1399 | return s; | |
79072805 LW |
1400 | case 'n': |
1401 | minus_n = TRUE; | |
1402 | s++; | |
1403 | return s; | |
1404 | case 'p': | |
1405 | minus_p = TRUE; | |
1406 | s++; | |
1407 | return s; | |
1408 | case 's': | |
bbce6d69 | 1409 | forbid_setid("-s"); |
79072805 LW |
1410 | doswitches = TRUE; |
1411 | s++; | |
1412 | return s; | |
463ee0b2 | 1413 | case 'T': |
f86702cc | 1414 | if (!tainting) |
9607fc9c | 1415 | croak("Too late for \"-T\" option"); |
463ee0b2 LW |
1416 | s++; |
1417 | return s; | |
79072805 LW |
1418 | case 'u': |
1419 | do_undump = TRUE; | |
1420 | s++; | |
1421 | return s; | |
1422 | case 'U': | |
1423 | unsafe = TRUE; | |
1424 | s++; | |
1425 | return s; | |
1426 | case 'v': | |
a5f75d66 AD |
1427 | #if defined(SUBVERSION) && SUBVERSION > 0 |
1428 | printf("\nThis is perl, version 5.%03d_%02d", PATCHLEVEL, SUBVERSION); | |
1429 | #else | |
1430 | printf("\nThis is perl, version %s",patchlevel); | |
1431 | #endif | |
1a30305b | 1432 | |
44a8e56a | 1433 | printf("\n\nCopyright 1987-1997, Larry Wall\n"); |
79072805 | 1434 | #ifdef MSDOS |
55497cff | 1435 | printf("\n\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); |
1436 | #endif | |
1437 | #ifdef DJGPP | |
1438 | printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n"); | |
4633a7c4 | 1439 | #endif |
79072805 | 1440 | #ifdef OS2 |
5dd60ef7 | 1441 | printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" |
9607fc9c | 1442 | "Version 5 port Copyright (c) 1994-1997, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 | 1443 | #endif |
79072805 | 1444 | #ifdef atarist |
760ac839 | 1445 | printf("atariST series port, ++jrb bammi@cadence.com\n"); |
79072805 | 1446 | #endif |
760ac839 | 1447 | printf("\n\ |
79072805 | 1448 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
760ac839 | 1449 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n"); |
79072805 LW |
1450 | exit(0); |
1451 | case 'w': | |
1452 | dowarn = TRUE; | |
1453 | s++; | |
1454 | return s; | |
a0d0e21e | 1455 | case '*': |
79072805 LW |
1456 | case ' ': |
1457 | if (s[1] == '-') /* Additional switches on #! line. */ | |
1458 | return s+2; | |
1459 | break; | |
a0d0e21e | 1460 | case '-': |
79072805 LW |
1461 | case 0: |
1462 | case '\n': | |
1463 | case '\t': | |
1464 | break; | |
aa689395 | 1465 | #ifdef ALTERNATE_SHEBANG |
1466 | case 'S': /* OS/2 needs -S on "extproc" line. */ | |
1467 | break; | |
1468 | #endif | |
a0d0e21e LW |
1469 | case 'P': |
1470 | if (preprocess) | |
1471 | return s+1; | |
1472 | /* FALL THROUGH */ | |
79072805 | 1473 | default: |
a0d0e21e | 1474 | croak("Can't emulate -%.1s on #! line",s); |
79072805 LW |
1475 | } |
1476 | return Nullch; | |
1477 | } | |
1478 | ||
1479 | /* compliments of Tom Christiansen */ | |
1480 | ||
1481 | /* unexec() can be found in the Gnu emacs distribution */ | |
1482 | ||
1483 | void | |
1484 | my_unexec() | |
1485 | { | |
1486 | #ifdef UNEXEC | |
1487 | int status; | |
1488 | extern int etext; | |
1489 | ||
1490 | sprintf (buf, "%s.perldump", origfilename); | |
2ae324a7 | 1491 | sprintf (tokenbuf, "%s/perl", BIN_EXP); |
79072805 LW |
1492 | |
1493 | status = unexec(buf, tokenbuf, &etext, sbrk(0), 0); | |
1494 | if (status) | |
760ac839 | 1495 | PerlIO_printf(PerlIO_stderr(), "unexec of %s into %s failed!\n", tokenbuf, buf); |
a0d0e21e | 1496 | exit(status); |
79072805 | 1497 | #else |
a5f75d66 AD |
1498 | # ifdef VMS |
1499 | # include <lib$routines.h> | |
1500 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ | |
aa689395 | 1501 | # else |
79072805 | 1502 | ABORT(); /* for use with undump */ |
aa689395 | 1503 | # endif |
a5f75d66 | 1504 | #endif |
79072805 LW |
1505 | } |
1506 | ||
1507 | static void | |
1508 | init_main_stash() | |
1509 | { | |
463ee0b2 | 1510 | GV *gv; |
6e72f9df | 1511 | |
1512 | /* Note that strtab is a rather special HV. Assumptions are made | |
1513 | about not iterating on it, and not adding tie magic to it. | |
1514 | It is properly deallocated in perl_destruct() */ | |
1515 | strtab = newHV(); | |
1516 | HvSHAREKEYS_off(strtab); /* mandatory */ | |
1517 | Newz(506,((XPVHV*)SvANY(strtab))->xhv_array, | |
1518 | sizeof(HE*) * (((XPVHV*)SvANY(strtab))->xhv_max + 1), char); | |
1519 | ||
463ee0b2 | 1520 | curstash = defstash = newHV(); |
79072805 | 1521 | curstname = newSVpv("main",4); |
adbc6bb1 LW |
1522 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
1523 | SvREFCNT_dec(GvHV(gv)); | |
1524 | GvHV(gv) = (HV*)SvREFCNT_inc(defstash); | |
463ee0b2 | 1525 | SvREADONLY_on(gv); |
a0d0e21e | 1526 | HvNAME(defstash) = savepv("main"); |
85e6fe83 | 1527 | incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); |
a5f75d66 | 1528 | GvMULTI_on(incgv); |
a0d0e21e | 1529 | defgv = gv_fetchpv("_",TRUE, SVt_PVAV); |
4633a7c4 | 1530 | errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); |
a5f75d66 | 1531 | GvMULTI_on(errgv); |
552a7a9b | 1532 | sv_setpvn(GvSV(errgv), "", 0); |
8990e307 LW |
1533 | curstash = defstash; |
1534 | compiling.cop_stash = defstash; | |
adbc6bb1 | 1535 | debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); |
4633a7c4 LW |
1536 | /* We must init $/ before switches are processed. */ |
1537 | sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1); | |
79072805 LW |
1538 | } |
1539 | ||
a0d0e21e LW |
1540 | #ifdef CAN_PROTOTYPE |
1541 | static void | |
1542 | open_script(char *scriptname, bool dosearch, SV *sv) | |
1543 | #else | |
79072805 LW |
1544 | static void |
1545 | open_script(scriptname,dosearch,sv) | |
1546 | char *scriptname; | |
1547 | bool dosearch; | |
1548 | SV *sv; | |
a0d0e21e | 1549 | #endif |
79072805 LW |
1550 | { |
1551 | char *xfound = Nullch; | |
1552 | char *xfailed = Nullch; | |
1553 | register char *s; | |
1554 | I32 len; | |
a38d6535 LW |
1555 | int retval; |
1556 | #if defined(DOSISH) && !defined(OS2) && !defined(atarist) | |
1557 | #define SEARCH_EXTS ".bat", ".cmd", NULL | |
1558 | #endif | |
ab821d7f | 1559 | #ifdef VMS |
1560 | # define SEARCH_EXTS ".pl", ".com", NULL | |
1561 | #endif | |
a38d6535 LW |
1562 | /* additional extensions to try in each dir if scriptname not found */ |
1563 | #ifdef SEARCH_EXTS | |
1564 | char *ext[] = { SEARCH_EXTS }; | |
1565 | int extidx = (strchr(scriptname,'.')) ? -1 : 0; /* has ext already */ | |
1566 | #endif | |
79072805 | 1567 | |
c07a80fd | 1568 | #ifdef VMS |
6e72f9df | 1569 | if (dosearch) { |
1570 | int hasdir, idx = 0, deftypes = 1; | |
1571 | ||
1572 | hasdir = (strpbrk(scriptname,":[</") != Nullch) ; | |
1573 | /* The first time through, just add SEARCH_EXTS to whatever we | |
1574 | * already have, so we can check for default file types. */ | |
1575 | while (deftypes || (!hasdir && my_trnlnm("DCL$PATH",tokenbuf,idx++)) ) { | |
1576 | if (deftypes) { deftypes = 0; *tokenbuf = '\0'; } | |
c07a80fd | 1577 | strcat(tokenbuf,scriptname); |
1578 | #else /* !VMS */ | |
93a17b20 | 1579 | if (dosearch && !strchr(scriptname, '/') && (s = getenv("PATH"))) { |
79072805 LW |
1580 | |
1581 | bufend = s + strlen(s); | |
1582 | while (*s) { | |
1583 | #ifndef DOSISH | |
1584 | s = cpytill(tokenbuf,s,bufend,':',&len); | |
1585 | #else | |
1586 | #ifdef atarist | |
1587 | for (len = 0; *s && *s != ',' && *s != ';'; tokenbuf[len++] = *s++); | |
1588 | tokenbuf[len] = '\0'; | |
1589 | #else | |
1590 | for (len = 0; *s && *s != ';'; tokenbuf[len++] = *s++); | |
1591 | tokenbuf[len] = '\0'; | |
1592 | #endif | |
1593 | #endif | |
1594 | if (*s) | |
1595 | s++; | |
1596 | #ifndef DOSISH | |
1597 | if (len && tokenbuf[len-1] != '/') | |
1598 | #else | |
1599 | #ifdef atarist | |
1600 | if (len && ((tokenbuf[len-1] != '\\') && (tokenbuf[len-1] != '/'))) | |
1601 | #else | |
1602 | if (len && tokenbuf[len-1] != '\\') | |
1603 | #endif | |
1604 | #endif | |
1605 | (void)strcat(tokenbuf+len,"/"); | |
1606 | (void)strcat(tokenbuf+len,scriptname); | |
c07a80fd | 1607 | #endif /* !VMS */ |
a38d6535 LW |
1608 | |
1609 | #ifdef SEARCH_EXTS | |
1610 | len = strlen(tokenbuf); | |
1611 | if (extidx > 0) /* reset after previous loop */ | |
1612 | extidx = 0; | |
1613 | do { | |
1614 | #endif | |
760ac839 | 1615 | DEBUG_p(PerlIO_printf(Perl_debug_log, "Looking for %s\n",tokenbuf)); |
a38d6535 LW |
1616 | retval = Stat(tokenbuf,&statbuf); |
1617 | #ifdef SEARCH_EXTS | |
1618 | } while ( retval < 0 /* not there */ | |
1619 | && extidx>=0 && ext[extidx] /* try an extension? */ | |
1620 | && strcpy(tokenbuf+len, ext[extidx++]) | |
1621 | ); | |
1622 | #endif | |
1623 | if (retval < 0) | |
79072805 LW |
1624 | continue; |
1625 | if (S_ISREG(statbuf.st_mode) | |
1626 | && cando(S_IRUSR,TRUE,&statbuf) && cando(S_IXUSR,TRUE,&statbuf)) { | |
1627 | xfound = tokenbuf; /* bingo! */ | |
1628 | break; | |
1629 | } | |
1630 | if (!xfailed) | |
a0d0e21e | 1631 | xfailed = savepv(tokenbuf); |
79072805 LW |
1632 | } |
1633 | if (!xfound) | |
463ee0b2 | 1634 | croak("Can't execute %s", xfailed ? xfailed : scriptname ); |
79072805 LW |
1635 | if (xfailed) |
1636 | Safefree(xfailed); | |
1637 | scriptname = xfound; | |
1638 | } | |
1639 | ||
96436eeb | 1640 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { |
1641 | char *s = scriptname + 8; | |
1642 | fdscript = atoi(s); | |
1643 | while (isDIGIT(*s)) | |
1644 | s++; | |
1645 | if (*s) | |
1646 | scriptname = s + 1; | |
1647 | } | |
1648 | else | |
1649 | fdscript = -1; | |
ab821d7f | 1650 | origfilename = savepv(e_tmpname ? "-e" : scriptname); |
79072805 LW |
1651 | curcop->cop_filegv = gv_fetchfile(origfilename); |
1652 | if (strEQ(origfilename,"-")) | |
1653 | scriptname = ""; | |
96436eeb | 1654 | if (fdscript >= 0) { |
760ac839 | 1655 | rsfp = PerlIO_fdopen(fdscript,"r"); |
96436eeb | 1656 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
7aa04957 CS |
1657 | if (rsfp) |
1658 | fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ | |
96436eeb | 1659 | #endif |
1660 | } | |
1661 | else if (preprocess) { | |
79072805 LW |
1662 | char *cpp = CPPSTDIN; |
1663 | ||
1664 | if (strEQ(cpp,"cppstdin")) | |
2ae324a7 | 1665 | sprintf(tokenbuf, "%s/%s", BIN_EXP, cpp); |
79072805 LW |
1666 | else |
1667 | sprintf(tokenbuf, "%s", cpp); | |
1668 | sv_catpv(sv,"-I"); | |
fed7345c | 1669 | sv_catpv(sv,PRIVLIB_EXP); |
79072805 LW |
1670 | #ifdef MSDOS |
1671 | (void)sprintf(buf, "\ | |
1672 | sed %s -e \"/^[^#]/b\" \ | |
1673 | -e \"/^#[ ]*include[ ]/b\" \ | |
1674 | -e \"/^#[ ]*define[ ]/b\" \ | |
1675 | -e \"/^#[ ]*if[ ]/b\" \ | |
1676 | -e \"/^#[ ]*ifdef[ ]/b\" \ | |
1677 | -e \"/^#[ ]*ifndef[ ]/b\" \ | |
1678 | -e \"/^#[ ]*else/b\" \ | |
1679 | -e \"/^#[ ]*elif[ ]/b\" \ | |
1680 | -e \"/^#[ ]*undef[ ]/b\" \ | |
1681 | -e \"/^#[ ]*endif/b\" \ | |
1682 | -e \"s/^#.*//\" \ | |
1683 | %s | %s -C %s %s", | |
1684 | (doextract ? "-e \"1,/^#/d\n\"" : ""), | |
1685 | #else | |
1686 | (void)sprintf(buf, "\ | |
1687 | %s %s -e '/^[^#]/b' \ | |
1688 | -e '/^#[ ]*include[ ]/b' \ | |
1689 | -e '/^#[ ]*define[ ]/b' \ | |
1690 | -e '/^#[ ]*if[ ]/b' \ | |
1691 | -e '/^#[ ]*ifdef[ ]/b' \ | |
1692 | -e '/^#[ ]*ifndef[ ]/b' \ | |
1693 | -e '/^#[ ]*else/b' \ | |
1694 | -e '/^#[ ]*elif[ ]/b' \ | |
1695 | -e '/^#[ ]*undef[ ]/b' \ | |
1696 | -e '/^#[ ]*endif/b' \ | |
1697 | -e 's/^[ ]*#.*//' \ | |
1698 | %s | %s -C %s %s", | |
1699 | #ifdef LOC_SED | |
1700 | LOC_SED, | |
1701 | #else | |
1702 | "sed", | |
1703 | #endif | |
1704 | (doextract ? "-e '1,/^#/d\n'" : ""), | |
1705 | #endif | |
463ee0b2 | 1706 | scriptname, tokenbuf, SvPV(sv, na), CPPMINUS); |
79072805 LW |
1707 | doextract = FALSE; |
1708 | #ifdef IAMSUID /* actually, this is caught earlier */ | |
1709 | if (euid != uid && !euid) { /* if running suidperl */ | |
1710 | #ifdef HAS_SETEUID | |
1711 | (void)seteuid(uid); /* musn't stay setuid root */ | |
1712 | #else | |
1713 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1714 | (void)setreuid((Uid_t)-1, uid); |
1715 | #else | |
1716 | #ifdef HAS_SETRESUID | |
1717 | (void)setresuid((Uid_t)-1, uid, (Uid_t)-1); | |
79072805 LW |
1718 | #else |
1719 | setuid(uid); | |
1720 | #endif | |
1721 | #endif | |
85e6fe83 | 1722 | #endif |
79072805 | 1723 | if (geteuid() != uid) |
463ee0b2 | 1724 | croak("Can't do seteuid!\n"); |
79072805 LW |
1725 | } |
1726 | #endif /* IAMSUID */ | |
1727 | rsfp = my_popen(buf,"r"); | |
1728 | } | |
1729 | else if (!*scriptname) { | |
bbce6d69 | 1730 | forbid_setid("program input from stdin"); |
760ac839 | 1731 | rsfp = PerlIO_stdin(); |
79072805 | 1732 | } |
96436eeb | 1733 | else { |
760ac839 | 1734 | rsfp = PerlIO_open(scriptname,"r"); |
96436eeb | 1735 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
7aa04957 CS |
1736 | if (rsfp) |
1737 | fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ | |
96436eeb | 1738 | #endif |
1739 | } | |
5dd60ef7 | 1740 | if (e_tmpname) { |
1741 | e_fp = rsfp; | |
1742 | } | |
7aa04957 | 1743 | if (!rsfp) { |
13281fa4 | 1744 | #ifdef DOSUID |
a687059c | 1745 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
a0d0e21e | 1746 | if (euid && Stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 && |
13281fa4 | 1747 | statbuf.st_mode & (S_ISUID|S_ISGID)) { |
2ae324a7 | 1748 | (void)sprintf(buf, "%s/sperl%s", BIN_EXP, patchlevel); |
a687059c | 1749 | execv(buf, origargv); /* try again */ |
463ee0b2 | 1750 | croak("Can't do setuid\n"); |
13281fa4 LW |
1751 | } |
1752 | #endif | |
1753 | #endif | |
463ee0b2 | 1754 | croak("Can't open perl script \"%s\": %s\n", |
2304df62 | 1755 | SvPVX(GvSV(curcop->cop_filegv)), Strerror(errno)); |
13281fa4 | 1756 | } |
79072805 | 1757 | } |
8d063cd8 | 1758 | |
79072805 | 1759 | static void |
96436eeb | 1760 | validate_suid(validarg, scriptname) |
79072805 | 1761 | char *validarg; |
96436eeb | 1762 | char *scriptname; |
79072805 | 1763 | { |
96436eeb | 1764 | int which; |
1765 | ||
13281fa4 LW |
1766 | /* do we need to emulate setuid on scripts? */ |
1767 | ||
1768 | /* This code is for those BSD systems that have setuid #! scripts disabled | |
1769 | * in the kernel because of a security problem. Merely defining DOSUID | |
1770 | * in perl will not fix that problem, but if you have disabled setuid | |
1771 | * scripts in the kernel, this will attempt to emulate setuid and setgid | |
1772 | * on scripts that have those now-otherwise-useless bits set. The setuid | |
27e2fb84 LW |
1773 | * root version must be called suidperl or sperlN.NNN. If regular perl |
1774 | * discovers that it has opened a setuid script, it calls suidperl with | |
1775 | * the same argv that it had. If suidperl finds that the script it has | |
1776 | * just opened is NOT setuid root, it sets the effective uid back to the | |
1777 | * uid. We don't just make perl setuid root because that loses the | |
1778 | * effective uid we had before invoking perl, if it was different from the | |
1779 | * uid. | |
13281fa4 LW |
1780 | * |
1781 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must | |
1782 | * be defined in suidperl only. suidperl must be setuid root. The | |
1783 | * Configure script will set this up for you if you want it. | |
1784 | */ | |
a687059c | 1785 | |
13281fa4 | 1786 | #ifdef DOSUID |
6e72f9df | 1787 | char *s, *s2; |
a0d0e21e | 1788 | |
760ac839 | 1789 | if (Fstat(PerlIO_fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */ |
463ee0b2 | 1790 | croak("Can't stat script \"%s\"",origfilename); |
96436eeb | 1791 | if (fdscript < 0 && statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 | 1792 | I32 len; |
13281fa4 | 1793 | |
a687059c | 1794 | #ifdef IAMSUID |
fe14fcc3 | 1795 | #ifndef HAS_SETREUID |
a687059c LW |
1796 | /* On this access check to make sure the directories are readable, |
1797 | * there is actually a small window that the user could use to make | |
1798 | * filename point to an accessible directory. So there is a faint | |
1799 | * chance that someone could execute a setuid script down in a | |
1800 | * non-accessible directory. I don't know what to do about that. | |
1801 | * But I don't think it's too important. The manual lies when | |
1802 | * it says access() is useful in setuid programs. | |
1803 | */ | |
463ee0b2 LW |
1804 | if (access(SvPVX(GvSV(curcop->cop_filegv)),1)) /*double check*/ |
1805 | croak("Permission denied"); | |
a687059c LW |
1806 | #else |
1807 | /* If we can swap euid and uid, then we can determine access rights | |
1808 | * with a simple stat of the file, and then compare device and | |
1809 | * inode to make sure we did stat() on the same file we opened. | |
1810 | * Then we just have to make sure he or she can execute it. | |
1811 | */ | |
1812 | { | |
1813 | struct stat tmpstatbuf; | |
1814 | ||
85e6fe83 LW |
1815 | if ( |
1816 | #ifdef HAS_SETREUID | |
1817 | setreuid(euid,uid) < 0 | |
a0d0e21e LW |
1818 | #else |
1819 | # if HAS_SETRESUID | |
85e6fe83 | 1820 | setresuid(euid,uid,(Uid_t)-1) < 0 |
a0d0e21e | 1821 | # endif |
85e6fe83 LW |
1822 | #endif |
1823 | || getuid() != euid || geteuid() != uid) | |
463ee0b2 | 1824 | croak("Can't swap uid and euid"); /* really paranoid */ |
a0d0e21e | 1825 | if (Stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0) |
463ee0b2 | 1826 | croak("Permission denied"); /* testing full pathname here */ |
a687059c LW |
1827 | if (tmpstatbuf.st_dev != statbuf.st_dev || |
1828 | tmpstatbuf.st_ino != statbuf.st_ino) { | |
760ac839 | 1829 | (void)PerlIO_close(rsfp); |
79072805 | 1830 | if (rsfp = my_popen("/bin/mail root","w")) { /* heh, heh */ |
760ac839 | 1831 | PerlIO_printf(rsfp, |
ff0cee69 | 1832 | "User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\ |
1833 | (Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n", | |
1834 | (long)uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino, | |
1835 | (long)statbuf.st_dev, (long)statbuf.st_ino, | |
463ee0b2 | 1836 | SvPVX(GvSV(curcop->cop_filegv)), |
ff0cee69 | 1837 | (long)statbuf.st_uid, (long)statbuf.st_gid); |
79072805 | 1838 | (void)my_pclose(rsfp); |
a687059c | 1839 | } |
463ee0b2 | 1840 | croak("Permission denied\n"); |
a687059c | 1841 | } |
85e6fe83 LW |
1842 | if ( |
1843 | #ifdef HAS_SETREUID | |
1844 | setreuid(uid,euid) < 0 | |
a0d0e21e LW |
1845 | #else |
1846 | # if defined(HAS_SETRESUID) | |
85e6fe83 | 1847 | setresuid(uid,euid,(Uid_t)-1) < 0 |
a0d0e21e | 1848 | # endif |
85e6fe83 LW |
1849 | #endif |
1850 | || getuid() != uid || geteuid() != euid) | |
463ee0b2 | 1851 | croak("Can't reswap uid and euid"); |
27e2fb84 | 1852 | if (!cando(S_IXUSR,FALSE,&statbuf)) /* can real uid exec? */ |
463ee0b2 | 1853 | croak("Permission denied\n"); |
a687059c | 1854 | } |
fe14fcc3 | 1855 | #endif /* HAS_SETREUID */ |
a687059c LW |
1856 | #endif /* IAMSUID */ |
1857 | ||
27e2fb84 | 1858 | if (!S_ISREG(statbuf.st_mode)) |
463ee0b2 | 1859 | croak("Permission denied"); |
27e2fb84 | 1860 | if (statbuf.st_mode & S_IWOTH) |
463ee0b2 | 1861 | croak("Setuid/gid script is writable by world"); |
13281fa4 | 1862 | doswitches = FALSE; /* -s is insecure in suid */ |
79072805 | 1863 | curcop->cop_line++; |
760ac839 LW |
1864 | if (sv_gets(linestr, rsfp, 0) == Nullch || |
1865 | strnNE(SvPV(linestr,na),"#!",2) ) /* required even on Sys V */ | |
463ee0b2 | 1866 | croak("No #! line"); |
760ac839 | 1867 | s = SvPV(linestr,na)+2; |
663a0e37 | 1868 | if (*s == ' ') s++; |
45d8adaa | 1869 | while (!isSPACE(*s)) s++; |
760ac839 | 1870 | for (s2 = s; (s2 > SvPV(linestr,na)+2 && |
6e72f9df | 1871 | (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ; |
1872 | if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ | |
463ee0b2 | 1873 | croak("Not a perl script"); |
a687059c | 1874 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 LW |
1875 | /* |
1876 | * #! arg must be what we saw above. They can invoke it by | |
1877 | * mentioning suidperl explicitly, but they may not add any strange | |
1878 | * arguments beyond what #! says if they do invoke suidperl that way. | |
1879 | */ | |
1880 | len = strlen(validarg); | |
1881 | if (strEQ(validarg," PHOOEY ") || | |
45d8adaa | 1882 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
463ee0b2 | 1883 | croak("Args must match #! line"); |
a687059c LW |
1884 | |
1885 | #ifndef IAMSUID | |
1886 | if (euid != uid && (statbuf.st_mode & S_ISUID) && | |
1887 | euid == statbuf.st_uid) | |
1888 | if (!do_undump) | |
463ee0b2 | 1889 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
1890 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1891 | #endif /* IAMSUID */ | |
13281fa4 LW |
1892 | |
1893 | if (euid) { /* oops, we're not the setuid root perl */ | |
760ac839 | 1894 | (void)PerlIO_close(rsfp); |
13281fa4 | 1895 | #ifndef IAMSUID |
2ae324a7 | 1896 | (void)sprintf(buf, "%s/sperl%s", BIN_EXP, patchlevel); |
a687059c | 1897 | execv(buf, origargv); /* try again */ |
13281fa4 | 1898 | #endif |
463ee0b2 | 1899 | croak("Can't do setuid\n"); |
13281fa4 LW |
1900 | } |
1901 | ||
83025b21 | 1902 | if (statbuf.st_mode & S_ISGID && statbuf.st_gid != egid) { |
fe14fcc3 | 1903 | #ifdef HAS_SETEGID |
a687059c LW |
1904 | (void)setegid(statbuf.st_gid); |
1905 | #else | |
fe14fcc3 | 1906 | #ifdef HAS_SETREGID |
85e6fe83 LW |
1907 | (void)setregid((Gid_t)-1,statbuf.st_gid); |
1908 | #else | |
1909 | #ifdef HAS_SETRESGID | |
1910 | (void)setresgid((Gid_t)-1,statbuf.st_gid,(Gid_t)-1); | |
a687059c LW |
1911 | #else |
1912 | setgid(statbuf.st_gid); | |
1913 | #endif | |
1914 | #endif | |
85e6fe83 | 1915 | #endif |
83025b21 | 1916 | if (getegid() != statbuf.st_gid) |
463ee0b2 | 1917 | croak("Can't do setegid!\n"); |
83025b21 | 1918 | } |
a687059c LW |
1919 | if (statbuf.st_mode & S_ISUID) { |
1920 | if (statbuf.st_uid != euid) | |
fe14fcc3 | 1921 | #ifdef HAS_SETEUID |
a687059c LW |
1922 | (void)seteuid(statbuf.st_uid); /* all that for this */ |
1923 | #else | |
fe14fcc3 | 1924 | #ifdef HAS_SETREUID |
85e6fe83 LW |
1925 | (void)setreuid((Uid_t)-1,statbuf.st_uid); |
1926 | #else | |
1927 | #ifdef HAS_SETRESUID | |
1928 | (void)setresuid((Uid_t)-1,statbuf.st_uid,(Uid_t)-1); | |
a687059c LW |
1929 | #else |
1930 | setuid(statbuf.st_uid); | |
1931 | #endif | |
1932 | #endif | |
85e6fe83 | 1933 | #endif |
83025b21 | 1934 | if (geteuid() != statbuf.st_uid) |
463ee0b2 | 1935 | croak("Can't do seteuid!\n"); |
a687059c | 1936 | } |
83025b21 | 1937 | else if (uid) { /* oops, mustn't run as root */ |
fe14fcc3 | 1938 | #ifdef HAS_SETEUID |
85e6fe83 | 1939 | (void)seteuid((Uid_t)uid); |
a687059c | 1940 | #else |
fe14fcc3 | 1941 | #ifdef HAS_SETREUID |
85e6fe83 | 1942 | (void)setreuid((Uid_t)-1,(Uid_t)uid); |
a687059c | 1943 | #else |
85e6fe83 LW |
1944 | #ifdef HAS_SETRESUID |
1945 | (void)setresuid((Uid_t)-1,(Uid_t)uid,(Uid_t)-1); | |
1946 | #else | |
1947 | setuid((Uid_t)uid); | |
1948 | #endif | |
a687059c LW |
1949 | #endif |
1950 | #endif | |
83025b21 | 1951 | if (geteuid() != uid) |
463ee0b2 | 1952 | croak("Can't do seteuid!\n"); |
83025b21 | 1953 | } |
748a9306 | 1954 | init_ids(); |
27e2fb84 | 1955 | if (!cando(S_IXUSR,TRUE,&statbuf)) |
463ee0b2 | 1956 | croak("Permission denied\n"); /* they can't do this */ |
13281fa4 LW |
1957 | } |
1958 | #ifdef IAMSUID | |
1959 | else if (preprocess) | |
463ee0b2 | 1960 | croak("-P not allowed for setuid/setgid script\n"); |
96436eeb | 1961 | else if (fdscript >= 0) |
1962 | croak("fd script not allowed in suidperl\n"); | |
13281fa4 | 1963 | else |
463ee0b2 | 1964 | croak("Script is not setuid/setgid in suidperl\n"); |
96436eeb | 1965 | |
1966 | /* We absolutely must clear out any saved ids here, so we */ | |
1967 | /* exec the real perl, substituting fd script for scriptname. */ | |
1968 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ | |
760ac839 LW |
1969 | PerlIO_rewind(rsfp); |
1970 | lseek(PerlIO_fileno(rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
96436eeb | 1971 | for (which = 1; origargv[which] && origargv[which] != scriptname; which++) ; |
1972 | if (!origargv[which]) | |
1973 | croak("Permission denied"); | |
760ac839 | 1974 | (void)sprintf(buf, "/dev/fd/%d/%.127s", PerlIO_fileno(rsfp), origargv[which]); |
96436eeb | 1975 | origargv[which] = buf; |
1976 | ||
1977 | #if defined(HAS_FCNTL) && defined(F_SETFD) | |
760ac839 | 1978 | fcntl(PerlIO_fileno(rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb | 1979 | #endif |
1980 | ||
2ae324a7 | 1981 | (void)sprintf(tokenbuf, "%s/perl%s", BIN_EXP, patchlevel); |
96436eeb | 1982 | execv(tokenbuf, origargv); /* try again */ |
1983 | croak("Can't do setuid\n"); | |
13281fa4 | 1984 | #endif /* IAMSUID */ |
a687059c | 1985 | #else /* !DOSUID */ |
a687059c LW |
1986 | if (euid != uid || egid != gid) { /* (suidperl doesn't exist, in fact) */ |
1987 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW | |
760ac839 | 1988 | Fstat(PerlIO_fileno(rsfp),&statbuf); /* may be either wrapped or real suid */ |
a687059c LW |
1989 | if ((euid != uid && euid == statbuf.st_uid && statbuf.st_mode & S_ISUID) |
1990 | || | |
1991 | (egid != gid && egid == statbuf.st_gid && statbuf.st_mode & S_ISGID) | |
1992 | ) | |
1993 | if (!do_undump) | |
463ee0b2 | 1994 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
1995 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1996 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ | |
1997 | /* not set-id, must be wrapped */ | |
a687059c | 1998 | } |
13281fa4 | 1999 | #endif /* DOSUID */ |
79072805 | 2000 | } |
13281fa4 | 2001 | |
79072805 LW |
2002 | static void |
2003 | find_beginning() | |
2004 | { | |
6e72f9df | 2005 | register char *s, *s2; |
33b78306 LW |
2006 | |
2007 | /* skip forward in input to the real script? */ | |
2008 | ||
bbce6d69 | 2009 | forbid_setid("-x"); |
33b78306 | 2010 | while (doextract) { |
79072805 | 2011 | if ((s = sv_gets(linestr, rsfp, 0)) == Nullch) |
463ee0b2 | 2012 | croak("No Perl script found in input\n"); |
6e72f9df | 2013 | if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) { |
760ac839 | 2014 | PerlIO_ungetc(rsfp, '\n'); /* to keep line count right */ |
33b78306 | 2015 | doextract = FALSE; |
6e72f9df | 2016 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
2017 | s2 = s; | |
2018 | while (*s == ' ' || *s == '\t') s++; | |
2019 | if (*s++ == '-') { | |
2020 | while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--; | |
2021 | if (strnEQ(s2-4,"perl",4)) | |
2022 | /*SUPPRESS 530*/ | |
2023 | while (s = moreswitches(s)) ; | |
33b78306 | 2024 | } |
79072805 | 2025 | if (cddir && chdir(cddir) < 0) |
463ee0b2 | 2026 | croak("Can't chdir to %s",cddir); |
83025b21 LW |
2027 | } |
2028 | } | |
2029 | } | |
2030 | ||
79072805 | 2031 | static void |
748a9306 | 2032 | init_ids() |
352d5a3a | 2033 | { |
748a9306 LW |
2034 | uid = (int)getuid(); |
2035 | euid = (int)geteuid(); | |
2036 | gid = (int)getgid(); | |
2037 | egid = (int)getegid(); | |
2038 | #ifdef VMS | |
2039 | uid |= gid << 16; | |
2040 | euid |= egid << 16; | |
2041 | #endif | |
4633a7c4 | 2042 | tainting |= (uid && (euid != uid || egid != gid)); |
748a9306 | 2043 | } |
79072805 | 2044 | |
748a9306 | 2045 | static void |
bbce6d69 | 2046 | forbid_setid(s) |
2047 | char *s; | |
2048 | { | |
2049 | if (euid != uid) | |
2050 | croak("No %s allowed while running setuid", s); | |
2051 | if (egid != gid) | |
2052 | croak("No %s allowed while running setgid", s); | |
2053 | } | |
2054 | ||
2055 | static void | |
748a9306 LW |
2056 | init_debugger() |
2057 | { | |
79072805 | 2058 | curstash = debstash; |
748a9306 | 2059 | dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); |
79072805 | 2060 | AvREAL_off(dbargs); |
a0d0e21e LW |
2061 | DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); |
2062 | DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); | |
748a9306 LW |
2063 | DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); |
2064 | DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); | |
c07a80fd | 2065 | sv_setiv(DBsingle, 0); |
748a9306 | 2066 | DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); |
c07a80fd | 2067 | sv_setiv(DBtrace, 0); |
748a9306 | 2068 | DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); |
c07a80fd | 2069 | sv_setiv(DBsignal, 0); |
79072805 | 2070 | curstash = defstash; |
352d5a3a LW |
2071 | } |
2072 | ||
79072805 | 2073 | static void |
8990e307 | 2074 | init_stacks() |
79072805 | 2075 | { |
6e72f9df | 2076 | curstack = newAV(); |
5f05dabc | 2077 | mainstack = curstack; /* remember in case we switch stacks */ |
2078 | AvREAL_off(curstack); /* not a real array */ | |
6e72f9df | 2079 | av_extend(curstack,127); |
79072805 | 2080 | |
6e72f9df | 2081 | stack_base = AvARRAY(curstack); |
79072805 | 2082 | stack_sp = stack_base; |
8990e307 | 2083 | stack_max = stack_base + 127; |
79072805 | 2084 | |
5f05dabc | 2085 | cxstack_max = 8192 / sizeof(CONTEXT) - 2; /* Use most of 8K. */ |
2086 | New(50,cxstack,cxstack_max + 1,CONTEXT); | |
2087 | cxstack_ix = -1; | |
2088 | ||
2089 | New(50,tmps_stack,128,SV*); | |
2090 | tmps_ix = -1; | |
2091 | tmps_max = 128; | |
2092 | ||
2093 | DEBUG( { | |
2094 | New(51,debname,128,char); | |
2095 | New(52,debdelim,128,char); | |
2096 | } ) | |
2097 | ||
2098 | /* | |
2099 | * The following stacks almost certainly should be per-interpreter, | |
2100 | * but for now they're not. XXX | |
2101 | */ | |
2102 | ||
6e72f9df | 2103 | if (markstack) { |
2104 | markstack_ptr = markstack; | |
2105 | } else { | |
2106 | New(54,markstack,64,I32); | |
2107 | markstack_ptr = markstack; | |
2108 | markstack_max = markstack + 64; | |
2109 | } | |
79072805 | 2110 | |
6e72f9df | 2111 | if (scopestack) { |
2112 | scopestack_ix = 0; | |
2113 | } else { | |
2114 | New(54,scopestack,32,I32); | |
2115 | scopestack_ix = 0; | |
2116 | scopestack_max = 32; | |
2117 | } | |
79072805 | 2118 | |
6e72f9df | 2119 | if (savestack) { |
2120 | savestack_ix = 0; | |
2121 | } else { | |
2122 | New(54,savestack,128,ANY); | |
2123 | savestack_ix = 0; | |
2124 | savestack_max = 128; | |
2125 | } | |
79072805 | 2126 | |
6e72f9df | 2127 | if (retstack) { |
2128 | retstack_ix = 0; | |
2129 | } else { | |
2130 | New(54,retstack,16,OP*); | |
2131 | retstack_ix = 0; | |
2132 | retstack_max = 16; | |
5f05dabc | 2133 | } |
378cc40b | 2134 | } |
33b78306 | 2135 | |
6e72f9df | 2136 | static void |
2137 | nuke_stacks() | |
2138 | { | |
2139 | Safefree(cxstack); | |
2140 | Safefree(tmps_stack); | |
5f05dabc | 2141 | DEBUG( { |
2142 | Safefree(debname); | |
2143 | Safefree(debdelim); | |
2144 | } ) | |
6e72f9df | 2145 | } |
2146 | ||
760ac839 | 2147 | static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
7aa04957 | 2148 | |
79072805 | 2149 | static void |
8990e307 LW |
2150 | init_lexer() |
2151 | { | |
a0d0e21e | 2152 | tmpfp = rsfp; |
8990e307 LW |
2153 | lex_start(linestr); |
2154 | rsfp = tmpfp; | |
2155 | subname = newSVpv("main",4); | |
2156 | } | |
2157 | ||
2158 | static void | |
79072805 | 2159 | init_predump_symbols() |
45d8adaa | 2160 | { |
93a17b20 | 2161 | GV *tmpgv; |
a0d0e21e | 2162 | GV *othergv; |
79072805 | 2163 | |
85e6fe83 | 2164 | sv_setpvn(GvSV(gv_fetchpv("\"", TRUE, SVt_PV)), " ", 1); |
79072805 | 2165 | |
85e6fe83 | 2166 | stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
a5f75d66 | 2167 | GvMULTI_on(stdingv); |
760ac839 | 2168 | IoIFP(GvIOp(stdingv)) = PerlIO_stdin(); |
adbc6bb1 | 2169 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 | 2170 | GvMULTI_on(tmpgv); |
a0d0e21e | 2171 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(stdingv)); |
79072805 | 2172 | |
85e6fe83 | 2173 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 | 2174 | GvMULTI_on(tmpgv); |
760ac839 | 2175 | IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout(); |
4633a7c4 | 2176 | setdefout(tmpgv); |
adbc6bb1 | 2177 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 | 2178 | GvMULTI_on(tmpgv); |
a0d0e21e | 2179 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(defoutgv)); |
79072805 | 2180 | |
a0d0e21e | 2181 | othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
a5f75d66 | 2182 | GvMULTI_on(othergv); |
760ac839 | 2183 | IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr(); |
adbc6bb1 | 2184 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 | 2185 | GvMULTI_on(tmpgv); |
a0d0e21e | 2186 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv)); |
79072805 LW |
2187 | |
2188 | statname = NEWSV(66,0); /* last filename we did stat on */ | |
ab821d7f | 2189 | |
6e72f9df | 2190 | if (!osname) |
2191 | osname = savepv(OSNAME); | |
79072805 | 2192 | } |
33b78306 | 2193 | |
79072805 LW |
2194 | static void |
2195 | init_postdump_symbols(argc,argv,env) | |
2196 | register int argc; | |
2197 | register char **argv; | |
2198 | register char **env; | |
33b78306 | 2199 | { |
79072805 LW |
2200 | char *s; |
2201 | SV *sv; | |
2202 | GV* tmpgv; | |
fe14fcc3 | 2203 | |
79072805 LW |
2204 | argc--,argv++; /* skip name of script */ |
2205 | if (doswitches) { | |
2206 | for (; argc > 0 && **argv == '-'; argc--,argv++) { | |
2207 | if (!argv[0][1]) | |
2208 | break; | |
2209 | if (argv[0][1] == '-') { | |
2210 | argc--,argv++; | |
2211 | break; | |
2212 | } | |
93a17b20 | 2213 | if (s = strchr(argv[0], '=')) { |
79072805 | 2214 | *s++ = '\0'; |
85e6fe83 | 2215 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 LW |
2216 | } |
2217 | else | |
85e6fe83 | 2218 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 | 2219 | } |
79072805 LW |
2220 | } |
2221 | toptarget = NEWSV(0,0); | |
2222 | sv_upgrade(toptarget, SVt_PVFM); | |
2223 | sv_setpvn(toptarget, "", 0); | |
748a9306 | 2224 | bodytarget = NEWSV(0,0); |
79072805 LW |
2225 | sv_upgrade(bodytarget, SVt_PVFM); |
2226 | sv_setpvn(bodytarget, "", 0); | |
2227 | formtarget = bodytarget; | |
2228 | ||
bbce6d69 | 2229 | TAINT; |
85e6fe83 | 2230 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
79072805 LW |
2231 | sv_setpv(GvSV(tmpgv),origfilename); |
2232 | magicname("0", "0", 1); | |
2233 | } | |
85e6fe83 | 2234 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
79072805 | 2235 | sv_setpv(GvSV(tmpgv),origargv[0]); |
85e6fe83 | 2236 | if (argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { |
a5f75d66 | 2237 | GvMULTI_on(argvgv); |
79072805 LW |
2238 | (void)gv_AVadd(argvgv); |
2239 | av_clear(GvAVn(argvgv)); | |
2240 | for (; argc > 0; argc--,argv++) { | |
a0d0e21e | 2241 | av_push(GvAVn(argvgv),newSVpv(argv[0],0)); |
79072805 LW |
2242 | } |
2243 | } | |
85e6fe83 | 2244 | if (envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 | 2245 | HV *hv; |
a5f75d66 | 2246 | GvMULTI_on(envgv); |
79072805 | 2247 | hv = GvHVn(envgv); |
463ee0b2 | 2248 | hv_clear(hv); |
a0d0e21e | 2249 | #ifndef VMS /* VMS doesn't have environ array */ |
4633a7c4 LW |
2250 | /* Note that if the supplied env parameter is actually a copy |
2251 | of the global environ then it may now point to free'd memory | |
2252 | if the environment has been modified since. To avoid this | |
2253 | problem we treat env==NULL as meaning 'use the default' | |
2254 | */ | |
2255 | if (!env) | |
2256 | env = environ; | |
8990e307 | 2257 | if (env != environ) { |
79072805 | 2258 | environ[0] = Nullch; |
8990e307 LW |
2259 | hv_magic(hv, envgv, 'E'); |
2260 | } | |
79072805 | 2261 | for (; *env; env++) { |
93a17b20 | 2262 | if (!(s = strchr(*env,'='))) |
79072805 LW |
2263 | continue; |
2264 | *s++ = '\0'; | |
2265 | sv = newSVpv(s--,0); | |
85e6fe83 | 2266 | sv_magic(sv, sv, 'e', *env, s - *env); |
79072805 LW |
2267 | (void)hv_store(hv, *env, s - *env, sv, 0); |
2268 | *s = '='; | |
fe14fcc3 | 2269 | } |
4550b24a | 2270 | #endif |
2271 | #ifdef DYNAMIC_ENV_FETCH | |
2272 | HvNAME(hv) = savepv(ENV_HV_NAME); | |
2273 | #endif | |
f511e57f | 2274 | hv_magic(hv, envgv, 'E'); |
79072805 | 2275 | } |
bbce6d69 | 2276 | TAINT_NOT; |
85e6fe83 | 2277 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
1e422769 | 2278 | sv_setiv(GvSV(tmpgv), (IV)getpid()); |
33b78306 | 2279 | } |
34de22dd | 2280 | |
79072805 LW |
2281 | static void |
2282 | init_perllib() | |
34de22dd | 2283 | { |
85e6fe83 LW |
2284 | char *s; |
2285 | if (!tainting) { | |
552a7a9b | 2286 | #ifndef VMS |
85e6fe83 LW |
2287 | s = getenv("PERL5LIB"); |
2288 | if (s) | |
774d564b | 2289 | incpush(s, TRUE); |
85e6fe83 | 2290 | else |
774d564b | 2291 | incpush(getenv("PERLLIB"), FALSE); |
552a7a9b | 2292 | #else /* VMS */ |
2293 | /* Treat PERL5?LIB as a possible search list logical name -- the | |
2294 | * "natural" VMS idiom for a Unix path string. We allow each | |
2295 | * element to be a set of |-separated directories for compatibility. | |
2296 | */ | |
2297 | char buf[256]; | |
2298 | int idx = 0; | |
2299 | if (my_trnlnm("PERL5LIB",buf,0)) | |
774d564b | 2300 | do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx)); |
552a7a9b | 2301 | else |
774d564b | 2302 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE); |
552a7a9b | 2303 | #endif /* VMS */ |
85e6fe83 | 2304 | } |
34de22dd | 2305 | |
df5cef82 | 2306 | /* Use the ~-expanded versions of APPLIB (undocumented), |
2307 | ARCHLIB PRIVLIB SITEARCH SITELIB and OLDARCHLIB | |
2308 | */ | |
4633a7c4 | 2309 | #ifdef APPLLIB_EXP |
774d564b | 2310 | incpush(APPLLIB_EXP, FALSE); |
16d20bd9 | 2311 | #endif |
4633a7c4 | 2312 | |
fed7345c | 2313 | #ifdef ARCHLIB_EXP |
774d564b | 2314 | incpush(ARCHLIB_EXP, FALSE); |
a0d0e21e | 2315 | #endif |
fed7345c AD |
2316 | #ifndef PRIVLIB_EXP |
2317 | #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" | |
34de22dd | 2318 | #endif |
774d564b | 2319 | incpush(PRIVLIB_EXP, FALSE); |
4633a7c4 LW |
2320 | |
2321 | #ifdef SITEARCH_EXP | |
774d564b | 2322 | incpush(SITEARCH_EXP, FALSE); |
4633a7c4 LW |
2323 | #endif |
2324 | #ifdef SITELIB_EXP | |
774d564b | 2325 | incpush(SITELIB_EXP, FALSE); |
4633a7c4 LW |
2326 | #endif |
2327 | #ifdef OLDARCHLIB_EXP /* 5.00[01] compatibility */ | |
774d564b | 2328 | incpush(OLDARCHLIB_EXP, FALSE); |
4633a7c4 | 2329 | #endif |
a0d0e21e | 2330 | |
4633a7c4 | 2331 | if (!tainting) |
774d564b | 2332 | incpush(".", FALSE); |
2333 | } | |
2334 | ||
2335 | #if defined(DOSISH) | |
2336 | # define PERLLIB_SEP ';' | |
2337 | #else | |
2338 | # if defined(VMS) | |
2339 | # define PERLLIB_SEP '|' | |
2340 | # else | |
2341 | # define PERLLIB_SEP ':' | |
2342 | # endif | |
2343 | #endif | |
2344 | #ifndef PERLLIB_MANGLE | |
2345 | # define PERLLIB_MANGLE(s,n) (s) | |
2346 | #endif | |
2347 | ||
2348 | static void | |
2349 | incpush(p, addsubdirs) | |
2350 | char *p; | |
2351 | int addsubdirs; | |
2352 | { | |
2353 | SV *subdir = Nullsv; | |
2354 | static char *archpat_auto; | |
2355 | ||
2356 | if (!p) | |
2357 | return; | |
2358 | ||
2359 | if (addsubdirs) { | |
2360 | subdir = newSV(0); | |
2361 | if (!archpat_auto) { | |
2362 | STRLEN len = (sizeof(ARCHNAME) + strlen(patchlevel) | |
2363 | + sizeof("//auto")); | |
2364 | New(55, archpat_auto, len, char); | |
2365 | sprintf(archpat_auto, "/%s/%s/auto", ARCHNAME, patchlevel); | |
aa689395 | 2366 | #ifdef VMS |
2367 | for (len = sizeof(ARCHNAME) + 2; | |
2368 | archpat_auto[len] != '\0' && archpat_auto[len] != '/'; len++) | |
2369 | if (archpat_auto[len] == '.') archpat_auto[len] = '_'; | |
2370 | #endif | |
774d564b | 2371 | } |
2372 | } | |
2373 | ||
2374 | /* Break at all separators */ | |
2375 | while (p && *p) { | |
2376 | SV *libdir = newSV(0); | |
2377 | char *s; | |
2378 | ||
2379 | /* skip any consecutive separators */ | |
2380 | while ( *p == PERLLIB_SEP ) { | |
2381 | /* Uncomment the next line for PATH semantics */ | |
2382 | /* av_push(GvAVn(incgv), newSVpv(".", 1)); */ | |
2383 | p++; | |
2384 | } | |
2385 | ||
2386 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { | |
2387 | sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)), | |
2388 | (STRLEN)(s - p)); | |
2389 | p = s + 1; | |
2390 | } | |
2391 | else { | |
2392 | sv_setpv(libdir, PERLLIB_MANGLE(p, 0)); | |
2393 | p = Nullch; /* break out */ | |
2394 | } | |
2395 | ||
2396 | /* | |
2397 | * BEFORE pushing libdir onto @INC we may first push version- and | |
2398 | * archname-specific sub-directories. | |
2399 | */ | |
2400 | if (addsubdirs) { | |
2401 | struct stat tmpstatbuf; | |
aa689395 | 2402 | #ifdef VMS |
2403 | char *unix; | |
2404 | STRLEN len; | |
774d564b | 2405 | |
aa689395 | 2406 | if ((unix = tounixspec_ts(SvPV(libdir,na),Nullch)) != Nullch) { |
2407 | len = strlen(unix); | |
2408 | while (unix[len-1] == '/') len--; /* Cosmetic */ | |
2409 | sv_usepvn(libdir,unix,len); | |
2410 | } | |
2411 | else | |
2412 | PerlIO_printf(PerlIO_stderr(), | |
2413 | "Failed to unixify @INC element \"%s\"\n", | |
2414 | SvPV(libdir,na)); | |
2415 | #endif | |
4fdae800 | 2416 | /* .../archname/version if -d .../archname/version/auto */ |
774d564b | 2417 | sv_setsv(subdir, libdir); |
2418 | sv_catpv(subdir, archpat_auto); | |
2419 | if (Stat(SvPVX(subdir), &tmpstatbuf) >= 0 && | |
2420 | S_ISDIR(tmpstatbuf.st_mode)) | |
2421 | av_push(GvAVn(incgv), | |
2422 | newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto")); | |
2423 | ||
4fdae800 | 2424 | /* .../archname if -d .../archname/auto */ |
774d564b | 2425 | sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME), |
2426 | strlen(patchlevel) + 1, "", 0); | |
2427 | if (Stat(SvPVX(subdir), &tmpstatbuf) >= 0 && | |
2428 | S_ISDIR(tmpstatbuf.st_mode)) | |
2429 | av_push(GvAVn(incgv), | |
2430 | newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto")); | |
2431 | } | |
2432 | ||
2433 | /* finally push this lib directory on the end of @INC */ | |
2434 | av_push(GvAVn(incgv), libdir); | |
2435 | } | |
2436 | ||
2437 | SvREFCNT_dec(subdir); | |
34de22dd | 2438 | } |
93a17b20 LW |
2439 | |
2440 | void | |
68dc0745 | 2441 | call_list(oldscope, list) |
2ae324a7 | 2442 | I32 oldscope; |
93a17b20 LW |
2443 | AV* list; |
2444 | { | |
a5f75d66 | 2445 | Sigjmp_buf oldtop; |
a0d0e21e LW |
2446 | STRLEN len; |
2447 | line_t oldline = curcop->cop_line; | |
93a17b20 | 2448 | |
a5f75d66 | 2449 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
93a17b20 | 2450 | |
8990e307 LW |
2451 | while (AvFILL(list) >= 0) { |
2452 | CV *cv = (CV*)av_shift(list); | |
93a17b20 | 2453 | |
8990e307 | 2454 | SAVEFREESV(cv); |
a0d0e21e | 2455 | |
a5f75d66 | 2456 | switch (Sigsetjmp(top_env,1)) { |
748a9306 | 2457 | case 0: { |
4633a7c4 | 2458 | SV* atsv = GvSV(errgv); |
748a9306 LW |
2459 | PUSHMARK(stack_sp); |
2460 | perl_call_sv((SV*)cv, G_EVAL|G_DISCARD); | |
2461 | (void)SvPV(atsv, len); | |
2462 | if (len) { | |
a5f75d66 | 2463 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
748a9306 LW |
2464 | curcop = &compiling; |
2465 | curcop->cop_line = oldline; | |
2466 | if (list == beginav) | |
2467 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); | |
2468 | else | |
2469 | sv_catpv(atsv, "END failed--cleanup aborted"); | |
2ae324a7 | 2470 | while (scopestack_ix > oldscope) |
2471 | LEAVE; | |
748a9306 LW |
2472 | croak("%s", SvPVX(atsv)); |
2473 | } | |
a0d0e21e | 2474 | } |
85e6fe83 LW |
2475 | break; |
2476 | case 1: | |
f86702cc | 2477 | STATUS_ALL_FAILURE; |
85e6fe83 LW |
2478 | /* FALL THROUGH */ |
2479 | case 2: | |
2480 | /* my_exit() was called */ | |
2ae324a7 | 2481 | while (scopestack_ix > oldscope) |
2482 | LEAVE; | |
85e6fe83 LW |
2483 | curstash = defstash; |
2484 | if (endav) | |
68dc0745 | 2485 | call_list(oldscope, endav); |
a0d0e21e | 2486 | FREETMPS; |
a5f75d66 | 2487 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
2488 | curcop = &compiling; |
2489 | curcop->cop_line = oldline; | |
85e6fe83 LW |
2490 | if (statusvalue) { |
2491 | if (list == beginav) | |
a0d0e21e | 2492 | croak("BEGIN failed--compilation aborted"); |
85e6fe83 | 2493 | else |
a0d0e21e | 2494 | croak("END failed--cleanup aborted"); |
85e6fe83 | 2495 | } |
f86702cc | 2496 | my_exit_jump(); |
85e6fe83 | 2497 | /* NOTREACHED */ |
85e6fe83 LW |
2498 | case 3: |
2499 | if (!restartop) { | |
760ac839 | 2500 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e | 2501 | FREETMPS; |
85e6fe83 LW |
2502 | break; |
2503 | } | |
a5f75d66 | 2504 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
2505 | curcop = &compiling; |
2506 | curcop->cop_line = oldline; | |
a5f75d66 | 2507 | Siglongjmp(top_env, 3); |
8990e307 | 2508 | } |
93a17b20 LW |
2509 | } |
2510 | ||
a5f75d66 | 2511 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
93a17b20 LW |
2512 | } |
2513 | ||
f86702cc | 2514 | void |
2515 | my_exit(status) | |
2516 | U32 status; | |
2517 | { | |
2518 | switch (status) { | |
2519 | case 0: | |
2520 | STATUS_ALL_SUCCESS; | |
2521 | break; | |
2522 | case 1: | |
2523 | STATUS_ALL_FAILURE; | |
2524 | break; | |
2525 | default: | |
2526 | STATUS_NATIVE_SET(status); | |
2527 | break; | |
2528 | } | |
2529 | my_exit_jump(); | |
2530 | } | |
2531 | ||
2532 | void | |
2533 | my_failure_exit() | |
2534 | { | |
2535 | #ifdef VMS | |
2536 | if (vaxc$errno & 1) { | |
4fdae800 | 2537 | if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */ |
2538 | STATUS_NATIVE_SET(44); | |
f86702cc | 2539 | } |
2540 | else { | |
ff0cee69 | 2541 | if (!vaxc$errno && errno) /* unlikely */ |
4fdae800 | 2542 | STATUS_NATIVE_SET(44); |
f86702cc | 2543 | else |
4fdae800 | 2544 | STATUS_NATIVE_SET(vaxc$errno); |
f86702cc | 2545 | } |
2546 | #else | |
2547 | if (errno & 255) | |
2548 | STATUS_POSIX_SET(errno); | |
2549 | else if (STATUS_POSIX == 0) | |
2550 | STATUS_POSIX_SET(255); | |
2551 | #endif | |
2552 | my_exit_jump(); | |
2553 | } | |
2554 | ||
2555 | static void | |
2556 | my_exit_jump() | |
2557 | { | |
2558 | register CONTEXT *cx; | |
2559 | I32 gimme; | |
2560 | SV **newsp; | |
2561 | ||
2562 | if (e_tmpname) { | |
2563 | if (e_fp) { | |
2564 | PerlIO_close(e_fp); | |
2565 | e_fp = Nullfp; | |
2566 | } | |
2567 | (void)UNLINK(e_tmpname); | |
2568 | Safefree(e_tmpname); | |
2569 | e_tmpname = Nullch; | |
2570 | } | |
2571 | ||
2572 | if (cxstack_ix >= 0) { | |
2573 | if (cxstack_ix > 0) | |
2574 | dounwind(0); | |
2575 | POPBLOCK(cx,curpm); | |
2576 | LEAVE; | |
2577 | } | |
ff0cee69 | 2578 | |
f86702cc | 2579 | Siglongjmp(top_env, 2); |
2580 | } |