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