Commit | Line | Data |
a0d0e21e |
1 | /* perl.c |
2 | * |
9607fc9c |
3 | * Copyright (c) 1987-1997 Larry Wall |
a687059c |
4 | * |
352d5a3a |
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 |
8 | */ |
9 | |
a0d0e21e |
10 | /* |
11 | * "A ship then new they built for him/of mithril and of elven glass" --Bilbo |
12 | */ |
45d8adaa |
13 | |
378cc40b |
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 |
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 |
29 | #ifdef IAMSUID |
30 | #ifndef DOSUID |
31 | #define DOSUID |
32 | #endif |
33 | #endif |
378cc40b |
34 | |
a687059c |
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 |
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 |
85 | perl_alloc() |
86 | { |
93a17b20 |
87 | PerlInterpreter *sv_interp; |
79072805 |
88 | |
8990e307 |
89 | curinterp = 0; |
93a17b20 |
90 | New(53, sv_interp, 1, PerlInterpreter); |
79072805 |
91 | return sv_interp; |
92 | } |
93 | |
94 | void |
95 | perl_construct( sv_interp ) |
93a17b20 |
96 | register PerlInterpreter *sv_interp; |
79072805 |
97 | { |
98 | if (!(curinterp = sv_interp)) |
99 | return; |
100 | |
8990e307 |
101 | #ifdef MULTIPLICITY |
93a17b20 |
102 | Zero(sv_interp, 1, PerlInterpreter); |
8990e307 |
103 | #endif |
79072805 |
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 |
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 |
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 |
168 | PerlIO_init(); /* Hook to IO system */ |
169 | |
79072805 |
170 | fdpid = newAV(); /* for remembering popen pids by fd */ |
8990e307 |
171 | |
172 | init_stacks(); |
173 | ENTER; |
79072805 |
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 |
184 | if (!(curinterp = sv_interp)) |
185 | return; |
748a9306 |
186 | |
187 | destruct_level = perl_destruct_level; |
4633a7c4 |
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 |
196 | } |
197 | #endif |
198 | |
8990e307 |
199 | LEAVE; |
a0d0e21e |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
445 | } |
446 | |
447 | void |
448 | perl_free(sv_interp) |
93a17b20 |
449 | PerlInterpreter *sv_interp; |
79072805 |
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 |
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 |
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 |
478 | setuid perl scripts securely.\n"); |
479 | #endif |
480 | #endif |
481 | |
79072805 |
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 |
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 |
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 |
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 |
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; |
84902520 |
530 | FREETMPS; |
8990e307 |
531 | curstash = defstash; |
532 | if (endav) |
68dc0745 |
533 | call_list(oldscope, endav); |
54310121 |
534 | JMPENV_POP; |
f86702cc |
535 | return STATUS_NATIVE_EXPORT; |
79072805 |
536 | case 3: |
54310121 |
537 | JMPENV_POP; |
760ac839 |
538 | PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); |
8990e307 |
539 | return 1; |
79072805 |
540 | } |
541 | |
79072805 |
542 | sv_setpvn(linestr,"",0); |
543 | sv = newSVpv("",0); /* first used for -I flags */ |
8990e307 |
544 | SAVEFREESV(sv); |
79072805 |
545 | init_main_stash(); |
54310121 |
546 | |
33b78306 |
547 | for (argc--,argv++; argc > 0; argc--,argv++) { |
8d063cd8 |
548 | if (argv[0][0] != '-' || !argv[0][1]) |
549 | break; |
13281fa4 |
550 | #ifdef DOSUID |
551 | if (*validarg) |
552 | validarg = " PHOOEY "; |
553 | else |
554 | validarg = argv[0]; |
555 | #endif |
556 | s = argv[0]+1; |
8d063cd8 |
557 | reswitch: |
13281fa4 |
558 | switch (*s) { |
27e2fb84 |
559 | case '0': |
2304df62 |
560 | case 'F': |
378cc40b |
561 | case 'a': |
33b78306 |
562 | case 'c': |
a687059c |
563 | case 'd': |
8d063cd8 |
564 | case 'D': |
4633a7c4 |
565 | case 'h': |
33b78306 |
566 | case 'i': |
fe14fcc3 |
567 | case 'l': |
1a30305b |
568 | case 'M': |
569 | case 'm': |
33b78306 |
570 | case 'n': |
571 | case 'p': |
79072805 |
572 | case 's': |
33b78306 |
573 | case 'u': |
574 | case 'U': |
575 | case 'v': |
576 | case 'w': |
577 | if (s = moreswitches(s)) |
578 | goto reswitch; |
8d063cd8 |
579 | break; |
33b78306 |
580 | |
f86702cc |
581 | case 'T': |
582 | tainting = TRUE; |
583 | s++; |
584 | goto reswitch; |
585 | |
8d063cd8 |
586 | case 'e': |
a687059c |
587 | if (euid != uid || egid != gid) |
463ee0b2 |
588 | croak("No -e allowed in setuid scripts"); |
8d063cd8 |
589 | if (!e_fp) { |
a0d0e21e |
590 | e_tmpname = savepv(TMPPATH); |
a687059c |
591 | (void)mktemp(e_tmpname); |
83025b21 |
592 | if (!*e_tmpname) |
463ee0b2 |
593 | croak("Can't mktemp()"); |
760ac839 |
594 | e_fp = PerlIO_open(e_tmpname,"w"); |
33b78306 |
595 | if (!e_fp) |
463ee0b2 |
596 | croak("Cannot open temporary file"); |
8d063cd8 |
597 | } |
552a7a9b |
598 | if (*++s) |
599 | PerlIO_puts(e_fp,s); |
600 | else if (argv[1]) { |
760ac839 |
601 | PerlIO_puts(e_fp,argv[1]); |
33b78306 |
602 | argc--,argv++; |
603 | } |
552a7a9b |
604 | else |
605 | croak("No code specified for -e"); |
760ac839 |
606 | (void)PerlIO_putc(e_fp,'\n'); |
8d063cd8 |
607 | break; |
608 | case 'I': |
bbce6d69 |
609 | forbid_setid("-I"); |
79072805 |
610 | sv_catpv(sv,"-"); |
611 | sv_catpv(sv,s); |
612 | sv_catpv(sv," "); |
a687059c |
613 | if (*++s) { |
774d564b |
614 | incpush(s, TRUE); |
378cc40b |
615 | } |
33b78306 |
616 | else if (argv[1]) { |
774d564b |
617 | incpush(argv[1], TRUE); |
79072805 |
618 | sv_catpv(sv,argv[1]); |
8d063cd8 |
619 | argc--,argv++; |
79072805 |
620 | sv_catpv(sv," "); |
8d063cd8 |
621 | } |
622 | break; |
8d063cd8 |
623 | case 'P': |
bbce6d69 |
624 | forbid_setid("-P"); |
8d063cd8 |
625 | preprocess = TRUE; |
13281fa4 |
626 | s++; |
8d063cd8 |
627 | goto reswitch; |
378cc40b |
628 | case 'S': |
bbce6d69 |
629 | forbid_setid("-S"); |
378cc40b |
630 | dosearch = TRUE; |
13281fa4 |
631 | s++; |
378cc40b |
632 | goto reswitch; |
1a30305b |
633 | case 'V': |
634 | if (!preambleav) |
635 | preambleav = newAV(); |
636 | av_push(preambleav, newSVpv("use Config qw(myconfig config_vars)",0)); |
637 | if (*++s != ':') { |
6e72f9df |
638 | Sv = newSVpv("print myconfig();",0); |
639 | #ifdef VMS |
640 | sv_catpv(Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\","); |
641 | #else |
642 | sv_catpv(Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\","); |
643 | #endif |
54310121 |
644 | #if defined(DEBUGGING) || defined(NO_EMBED) || defined(MULTIPLICITY) |
46fc3d4c |
645 | sv_catpv(Sv,"\" Compile-time options:"); |
6e72f9df |
646 | # ifdef DEBUGGING |
46fc3d4c |
647 | sv_catpv(Sv," DEBUGGING"); |
6e72f9df |
648 | # endif |
54310121 |
649 | # ifdef NO_EMBED |
46fc3d4c |
650 | sv_catpv(Sv," NO_EMBED"); |
6e72f9df |
651 | # endif |
652 | # ifdef MULTIPLICITY |
46fc3d4c |
653 | sv_catpv(Sv," MULTIPLICITY"); |
6e72f9df |
654 | # endif |
46fc3d4c |
655 | sv_catpv(Sv,"\\n\","); |
6e72f9df |
656 | #endif |
657 | #if defined(LOCAL_PATCH_COUNT) |
54310121 |
658 | if (LOCAL_PATCH_COUNT > 0) { |
659 | int i; |
5cd24f17 |
660 | sv_catpv(Sv,"\" Locally applied patches:\\n\","); |
6e72f9df |
661 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { |
46fc3d4c |
662 | if (localpatches[i]) |
663 | sv_catpvf(Sv,"\" \\t%s\\n\",",localpatches[i]); |
6e72f9df |
664 | } |
665 | } |
666 | #endif |
46fc3d4c |
667 | sv_catpvf(Sv,"\" Built under %s\\n\"",OSNAME); |
6e72f9df |
668 | #ifdef __DATE__ |
669 | # ifdef __TIME__ |
46fc3d4c |
670 | sv_catpvf(Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__); |
6e72f9df |
671 | # else |
46fc3d4c |
672 | sv_catpvf(Sv,",\" Compiled on %s\\n\"",__DATE__); |
6e72f9df |
673 | # endif |
6e72f9df |
674 | #endif |
54310121 |
675 | sv_catpv(Sv, "; \ |
676 | $\"=\"\\n \"; \ |
677 | @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; \ |
678 | print \" \\%ENV:\\n @env\\n\" if @env; \ |
679 | print \" \\@INC:\\n @INC\\n\";"); |
1a30305b |
680 | } |
681 | else { |
682 | Sv = newSVpv("config_vars(qw(",0); |
683 | sv_catpv(Sv, ++s); |
684 | sv_catpv(Sv, "))"); |
685 | s += strlen(s); |
686 | } |
687 | av_push(preambleav, Sv); |
c07a80fd |
688 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
1a30305b |
689 | goto reswitch; |
33b78306 |
690 | case 'x': |
691 | doextract = TRUE; |
13281fa4 |
692 | s++; |
33b78306 |
693 | if (*s) |
a0d0e21e |
694 | cddir = savepv(s); |
33b78306 |
695 | break; |
8d063cd8 |
696 | case '-': |
90248788 |
697 | if (*++s) { /* catch use of gnu style long options */ |
698 | if (strEQ(s, "version")) { |
699 | s = "v"; |
700 | goto reswitch; |
701 | } |
702 | if (strEQ(s, "help")) { |
703 | s = "h"; |
704 | goto reswitch; |
705 | } |
706 | croak("Unrecognized switch: --%s (-h will show valid options)",s); |
707 | } |
8d063cd8 |
708 | argc--,argv++; |
709 | goto switch_end; |
710 | case 0: |
711 | break; |
712 | default: |
90248788 |
713 | croak("Unrecognized switch: -%s (-h will show valid options)",s); |
8d063cd8 |
714 | } |
715 | } |
716 | switch_end: |
54310121 |
717 | |
718 | if (!tainting && (s = getenv("PERL5OPT"))) { |
719 | for (;;) { |
720 | while (isSPACE(*s)) |
721 | s++; |
722 | if (*s == '-') { |
723 | s++; |
724 | if (isSPACE(*s)) |
725 | continue; |
726 | } |
727 | if (!*s) |
728 | break; |
729 | if (!strchr("DIMUdmw", *s)) |
730 | croak("Illegal switch in PERL5OPT: -%c", *s); |
731 | s = moreswitches(s); |
732 | } |
733 | } |
734 | |
1a30305b |
735 | if (!scriptname) |
736 | scriptname = argv[0]; |
8d063cd8 |
737 | if (e_fp) { |
68dc0745 |
738 | if (PerlIO_flush(e_fp) || PerlIO_error(e_fp) || PerlIO_close(e_fp)) { |
739 | #ifndef MULTIPLICITY |
740 | warn("Did you forget to compile with -DMULTIPLICITY?"); |
741 | #endif |
2304df62 |
742 | croak("Can't write to temp file for -e: %s", Strerror(errno)); |
68dc0745 |
743 | } |
ab821d7f |
744 | e_fp = Nullfp; |
8d063cd8 |
745 | argc++,argv--; |
45d8adaa |
746 | scriptname = e_tmpname; |
8d063cd8 |
747 | } |
79072805 |
748 | else if (scriptname == Nullch) { |
749 | #ifdef MSDOS |
760ac839 |
750 | if ( isatty(PerlIO_fileno(PerlIO_stdin())) ) |
55497cff |
751 | moreswitches("h"); |
fe14fcc3 |
752 | #endif |
79072805 |
753 | scriptname = "-"; |
754 | } |
fe14fcc3 |
755 | |
79072805 |
756 | init_perllib(); |
8d063cd8 |
757 | |
79072805 |
758 | open_script(scriptname,dosearch,sv); |
8d063cd8 |
759 | |
96436eeb |
760 | validate_suid(validarg, scriptname); |
378cc40b |
761 | |
79072805 |
762 | if (doextract) |
763 | find_beginning(); |
764 | |
4fdae800 |
765 | main_cv = compcv = (CV*)NEWSV(1104,0); |
748a9306 |
766 | sv_upgrade((SV *)compcv, SVt_PVCV); |
07055b4c |
767 | CvUNIQUE_on(compcv); |
748a9306 |
768 | |
6e72f9df |
769 | comppad = newAV(); |
79072805 |
770 | av_push(comppad, Nullsv); |
771 | curpad = AvARRAY(comppad); |
6e72f9df |
772 | comppad_name = newAV(); |
8990e307 |
773 | comppad_name_fill = 0; |
774 | min_intro_pending = 0; |
79072805 |
775 | padix = 0; |
776 | |
748a9306 |
777 | comppadlist = newAV(); |
778 | AvREAL_off(comppadlist); |
8e07c86e |
779 | av_store(comppadlist, 0, (SV*)comppad_name); |
780 | av_store(comppadlist, 1, (SV*)comppad); |
748a9306 |
781 | CvPADLIST(compcv) = comppadlist; |
782 | |
6e72f9df |
783 | boot_core_UNIVERSAL(); |
a0d0e21e |
784 | if (xsinit) |
785 | (*xsinit)(); /* in case linked C routines want magical variables */ |
ad2e33dc |
786 | #if defined(VMS) || defined(WIN32) |
748a9306 |
787 | init_os_extras(); |
788 | #endif |
93a17b20 |
789 | |
93a17b20 |
790 | init_predump_symbols(); |
8990e307 |
791 | if (!do_undump) |
792 | init_postdump_symbols(argc,argv,env); |
93a17b20 |
793 | |
79072805 |
794 | init_lexer(); |
795 | |
796 | /* now parse the script */ |
797 | |
798 | error_count = 0; |
799 | if (yyparse() || error_count) { |
800 | if (minus_c) |
463ee0b2 |
801 | croak("%s had compilation errors.\n", origfilename); |
79072805 |
802 | else { |
463ee0b2 |
803 | croak("Execution of %s aborted due to compilation errors.\n", |
79072805 |
804 | origfilename); |
378cc40b |
805 | } |
79072805 |
806 | } |
807 | curcop->cop_line = 0; |
808 | curstash = defstash; |
809 | preprocess = FALSE; |
ab821d7f |
810 | if (e_tmpname) { |
79072805 |
811 | (void)UNLINK(e_tmpname); |
ab821d7f |
812 | Safefree(e_tmpname); |
813 | e_tmpname = Nullch; |
378cc40b |
814 | } |
a687059c |
815 | |
93a17b20 |
816 | /* now that script is parsed, we can modify record separator */ |
c07a80fd |
817 | SvREFCNT_dec(rs); |
818 | rs = SvREFCNT_inc(nrs); |
819 | sv_setsv(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), rs); |
45d8adaa |
820 | |
79072805 |
821 | if (do_undump) |
822 | my_unexec(); |
823 | |
8990e307 |
824 | if (dowarn) |
825 | gv_check(defstash); |
826 | |
a0d0e21e |
827 | LEAVE; |
828 | FREETMPS; |
c07a80fd |
829 | |
3562ef9b |
830 | #ifdef MYMALLOC |
c07a80fd |
831 | if ((s=getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) |
832 | dump_mstats("after compilation:"); |
833 | #endif |
834 | |
a0d0e21e |
835 | ENTER; |
836 | restartop = 0; |
54310121 |
837 | JMPENV_POP; |
79072805 |
838 | return 0; |
839 | } |
840 | |
841 | int |
842 | perl_run(sv_interp) |
93a17b20 |
843 | PerlInterpreter *sv_interp; |
79072805 |
844 | { |
2ae324a7 |
845 | I32 oldscope; |
22921e25 |
846 | dJMPENV; |
847 | int ret; |
2ae324a7 |
848 | |
79072805 |
849 | if (!(curinterp = sv_interp)) |
850 | return 255; |
2ae324a7 |
851 | |
852 | oldscope = scopestack_ix; |
853 | |
22921e25 |
854 | JMPENV_PUSH(ret); |
855 | switch (ret) { |
79072805 |
856 | case 1: |
857 | cxstack_ix = -1; /* start context stack again */ |
858 | break; |
859 | case 2: |
f86702cc |
860 | /* my_exit() was called */ |
2ae324a7 |
861 | while (scopestack_ix > oldscope) |
862 | LEAVE; |
84902520 |
863 | FREETMPS; |
79072805 |
864 | curstash = defstash; |
93a17b20 |
865 | if (endav) |
68dc0745 |
866 | call_list(oldscope, endav); |
3562ef9b |
867 | #ifdef MYMALLOC |
c07a80fd |
868 | if (getenv("PERL_DEBUG_MSTATS")) |
869 | dump_mstats("after execution: "); |
870 | #endif |
54310121 |
871 | JMPENV_POP; |
f86702cc |
872 | return STATUS_NATIVE_EXPORT; |
79072805 |
873 | case 3: |
874 | if (!restartop) { |
760ac839 |
875 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e |
876 | FREETMPS; |
54310121 |
877 | JMPENV_POP; |
8990e307 |
878 | return 1; |
83025b21 |
879 | } |
6e72f9df |
880 | if (curstack != mainstack) { |
79072805 |
881 | dSP; |
6e72f9df |
882 | SWITCHSTACK(curstack, mainstack); |
79072805 |
883 | } |
884 | break; |
8d063cd8 |
885 | } |
79072805 |
886 | |
760ac839 |
887 | DEBUG_r(PerlIO_printf(PerlIO_stderr(), "%s $` $& $' support.\n", |
6e72f9df |
888 | sawampersand ? "Enabling" : "Omitting")); |
889 | |
79072805 |
890 | if (!restartop) { |
891 | DEBUG_x(dump_all()); |
760ac839 |
892 | DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); |
79072805 |
893 | |
894 | if (minus_c) { |
760ac839 |
895 | PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", origfilename); |
79072805 |
896 | my_exit(0); |
897 | } |
84902520 |
898 | if (PERLDB_SINGLE && DBsingle) |
a0d0e21e |
899 | sv_setiv(DBsingle, 1); |
45d8adaa |
900 | } |
79072805 |
901 | |
902 | /* do it */ |
903 | |
904 | if (restartop) { |
905 | op = restartop; |
906 | restartop = 0; |
ab821d7f |
907 | runops(); |
79072805 |
908 | } |
909 | else if (main_start) { |
4fdae800 |
910 | CvDEPTH(main_cv) = 1; |
79072805 |
911 | op = main_start; |
ab821d7f |
912 | runops(); |
79072805 |
913 | } |
79072805 |
914 | |
915 | my_exit(0); |
54310121 |
916 | /* NOTREACHED */ |
a0d0e21e |
917 | return 0; |
79072805 |
918 | } |
919 | |
a0d0e21e |
920 | SV* |
921 | perl_get_sv(name, create) |
922 | char* name; |
923 | I32 create; |
924 | { |
925 | GV* gv = gv_fetchpv(name, create, SVt_PV); |
926 | if (gv) |
927 | return GvSV(gv); |
928 | return Nullsv; |
929 | } |
930 | |
931 | AV* |
932 | perl_get_av(name, create) |
933 | char* name; |
934 | I32 create; |
935 | { |
936 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); |
937 | if (create) |
938 | return GvAVn(gv); |
939 | if (gv) |
940 | return GvAV(gv); |
941 | return Nullav; |
942 | } |
943 | |
944 | HV* |
945 | perl_get_hv(name, create) |
946 | char* name; |
947 | I32 create; |
948 | { |
949 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); |
950 | if (create) |
951 | return GvHVn(gv); |
952 | if (gv) |
953 | return GvHV(gv); |
954 | return Nullhv; |
955 | } |
956 | |
957 | CV* |
958 | perl_get_cv(name, create) |
959 | char* name; |
960 | I32 create; |
961 | { |
962 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); |
8ebc5c01 |
963 | if (create && !GvCVu(gv)) |
774d564b |
964 | return newSUB(start_subparse(FALSE, 0), |
a0d0e21e |
965 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
4633a7c4 |
966 | Nullop, |
a0d0e21e |
967 | Nullop); |
968 | if (gv) |
8ebc5c01 |
969 | return GvCVu(gv); |
a0d0e21e |
970 | return Nullcv; |
971 | } |
972 | |
79072805 |
973 | /* Be sure to refetch the stack pointer after calling these routines. */ |
974 | |
a0d0e21e |
975 | I32 |
976 | perl_call_argv(subname, flags, argv) |
8990e307 |
977 | char *subname; |
a0d0e21e |
978 | I32 flags; /* See G_* flags in cop.h */ |
979 | register char **argv; /* null terminated arg list */ |
8990e307 |
980 | { |
a0d0e21e |
981 | dSP; |
8990e307 |
982 | |
a0d0e21e |
983 | PUSHMARK(sp); |
984 | if (argv) { |
8990e307 |
985 | while (*argv) { |
a0d0e21e |
986 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 |
987 | argv++; |
988 | } |
a0d0e21e |
989 | PUTBACK; |
8990e307 |
990 | } |
a0d0e21e |
991 | return perl_call_pv(subname, flags); |
8990e307 |
992 | } |
993 | |
a0d0e21e |
994 | I32 |
995 | perl_call_pv(subname, flags) |
996 | char *subname; /* name of the subroutine */ |
997 | I32 flags; /* See G_* flags in cop.h */ |
998 | { |
999 | return perl_call_sv((SV*)perl_get_cv(subname, TRUE), flags); |
1000 | } |
1001 | |
1002 | I32 |
1003 | perl_call_method(methname, flags) |
1004 | char *methname; /* name of the subroutine */ |
1005 | I32 flags; /* See G_* flags in cop.h */ |
1006 | { |
1007 | dSP; |
1008 | OP myop; |
1009 | if (!op) |
1010 | op = &myop; |
1011 | XPUSHs(sv_2mortal(newSVpv(methname,0))); |
1012 | PUTBACK; |
1013 | pp_method(); |
1014 | return perl_call_sv(*stack_sp--, flags); |
1015 | } |
1016 | |
1017 | /* May be called with any of a CV, a GV, or an SV containing the name. */ |
1018 | I32 |
1019 | perl_call_sv(sv, flags) |
1020 | SV* sv; |
1021 | I32 flags; /* See G_* flags in cop.h */ |
1022 | { |
1023 | LOGOP myop; /* fake syntax tree node */ |
1024 | SV** sp = stack_sp; |
aa689395 |
1025 | I32 oldmark; |
a0d0e21e |
1026 | I32 retval; |
a0d0e21e |
1027 | I32 oldscope; |
6e72f9df |
1028 | static CV *DBcv; |
54310121 |
1029 | bool oldcatch = CATCH_GET; |
1030 | dJMPENV; |
22921e25 |
1031 | int ret; |
d6602a8c |
1032 | OP* oldop = op; |
1e422769 |
1033 | |
a0d0e21e |
1034 | if (flags & G_DISCARD) { |
1035 | ENTER; |
1036 | SAVETMPS; |
1037 | } |
1038 | |
aa689395 |
1039 | Zero(&myop, 1, LOGOP); |
54310121 |
1040 | myop.op_next = Nullop; |
f51d4af5 |
1041 | if (!(flags & G_NOARGS)) |
aa689395 |
1042 | myop.op_flags |= OPf_STACKED; |
54310121 |
1043 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
1044 | (flags & G_ARRAY) ? OPf_WANT_LIST : |
1045 | OPf_WANT_SCALAR); |
a0d0e21e |
1046 | SAVESPTR(op); |
1047 | op = (OP*)&myop; |
aa689395 |
1048 | |
a0d0e21e |
1049 | EXTEND(stack_sp, 1); |
1050 | *++stack_sp = sv; |
aa689395 |
1051 | oldmark = TOPMARK; |
a0d0e21e |
1052 | oldscope = scopestack_ix; |
1053 | |
84902520 |
1054 | if (PERLDB_SUB && curstash != debstash |
36477c24 |
1055 | /* Handle first BEGIN of -d. */ |
1056 | && (DBcv || (DBcv = GvCV(DBsub))) |
1057 | /* Try harder, since this may have been a sighandler, thus |
1058 | * curstash may be meaningless. */ |
1059 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != debstash)) |
6e72f9df |
1060 | op->op_private |= OPpENTERSUB_DB; |
1061 | |
a0d0e21e |
1062 | if (flags & G_EVAL) { |
a0d0e21e |
1063 | cLOGOP->op_other = op; |
1064 | markstack_ptr--; |
4633a7c4 |
1065 | /* we're trying to emulate pp_entertry() here */ |
1066 | { |
1067 | register CONTEXT *cx; |
54310121 |
1068 | I32 gimme = GIMME_V; |
4633a7c4 |
1069 | |
1070 | ENTER; |
1071 | SAVETMPS; |
1072 | |
1073 | push_return(op->op_next); |
1074 | PUSHBLOCK(cx, CXt_EVAL, stack_sp); |
1075 | PUSHEVAL(cx, 0, 0); |
1076 | eval_root = op; /* Only needed so that goto works right. */ |
1077 | |
1078 | in_eval = 1; |
1079 | if (flags & G_KEEPERR) |
1080 | in_eval |= 4; |
1081 | else |
1082 | sv_setpv(GvSV(errgv),""); |
1083 | } |
a0d0e21e |
1084 | markstack_ptr++; |
1085 | |
22921e25 |
1086 | JMPENV_PUSH(ret); |
1087 | switch (ret) { |
a0d0e21e |
1088 | case 0: |
1089 | break; |
1090 | case 1: |
f86702cc |
1091 | STATUS_ALL_FAILURE; |
a0d0e21e |
1092 | /* FALL THROUGH */ |
1093 | case 2: |
1094 | /* my_exit() was called */ |
1095 | curstash = defstash; |
1096 | FREETMPS; |
54310121 |
1097 | JMPENV_POP; |
a0d0e21e |
1098 | if (statusvalue) |
1099 | croak("Callback called exit"); |
f86702cc |
1100 | my_exit_jump(); |
a0d0e21e |
1101 | /* NOTREACHED */ |
1102 | case 3: |
1103 | if (restartop) { |
1104 | op = restartop; |
1105 | restartop = 0; |
54310121 |
1106 | break; |
a0d0e21e |
1107 | } |
1108 | stack_sp = stack_base + oldmark; |
1109 | if (flags & G_ARRAY) |
1110 | retval = 0; |
1111 | else { |
1112 | retval = 1; |
1113 | *++stack_sp = &sv_undef; |
1114 | } |
1115 | goto cleanup; |
1116 | } |
1117 | } |
1e422769 |
1118 | else |
54310121 |
1119 | CATCH_SET(TRUE); |
a0d0e21e |
1120 | |
1121 | if (op == (OP*)&myop) |
1122 | op = pp_entersub(); |
1123 | if (op) |
ab821d7f |
1124 | runops(); |
a0d0e21e |
1125 | retval = stack_sp - (stack_base + oldmark); |
4633a7c4 |
1126 | if ((flags & G_EVAL) && !(flags & G_KEEPERR)) |
1127 | sv_setpv(GvSV(errgv),""); |
a0d0e21e |
1128 | |
1129 | cleanup: |
1130 | if (flags & G_EVAL) { |
1131 | if (scopestack_ix > oldscope) { |
a0a2876f |
1132 | SV **newsp; |
1133 | PMOP *newpm; |
1134 | I32 gimme; |
1135 | register CONTEXT *cx; |
1136 | I32 optype; |
1137 | |
1138 | POPBLOCK(cx,newpm); |
1139 | POPEVAL(cx); |
1140 | pop_return(); |
1141 | curpm = newpm; |
1142 | LEAVE; |
a0d0e21e |
1143 | } |
54310121 |
1144 | JMPENV_POP; |
a0d0e21e |
1145 | } |
1e422769 |
1146 | else |
54310121 |
1147 | CATCH_SET(oldcatch); |
1e422769 |
1148 | |
a0d0e21e |
1149 | if (flags & G_DISCARD) { |
1150 | stack_sp = stack_base + oldmark; |
1151 | retval = 0; |
1152 | FREETMPS; |
1153 | LEAVE; |
1154 | } |
d6602a8c |
1155 | op = oldop; |
a0d0e21e |
1156 | return retval; |
1157 | } |
1158 | |
6e72f9df |
1159 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 |
1160 | |
a0d0e21e |
1161 | I32 |
4633a7c4 |
1162 | perl_eval_sv(sv, flags) |
8990e307 |
1163 | SV* sv; |
4633a7c4 |
1164 | I32 flags; /* See G_* flags in cop.h */ |
a0d0e21e |
1165 | { |
1166 | UNOP myop; /* fake syntax tree node */ |
4633a7c4 |
1167 | SV** sp = stack_sp; |
1168 | I32 oldmark = sp - stack_base; |
1169 | I32 retval; |
4633a7c4 |
1170 | I32 oldscope; |
54310121 |
1171 | dJMPENV; |
22921e25 |
1172 | int ret; |
84902520 |
1173 | OP* oldop = op; |
1174 | |
4633a7c4 |
1175 | if (flags & G_DISCARD) { |
1176 | ENTER; |
1177 | SAVETMPS; |
1178 | } |
1179 | |
79072805 |
1180 | SAVESPTR(op); |
79072805 |
1181 | op = (OP*)&myop; |
a0d0e21e |
1182 | Zero(op, 1, UNOP); |
4633a7c4 |
1183 | EXTEND(stack_sp, 1); |
1184 | *++stack_sp = sv; |
1185 | oldscope = scopestack_ix; |
79072805 |
1186 | |
4633a7c4 |
1187 | if (!(flags & G_NOARGS)) |
1188 | myop.op_flags = OPf_STACKED; |
79072805 |
1189 | myop.op_next = Nullop; |
6e72f9df |
1190 | myop.op_type = OP_ENTEREVAL; |
54310121 |
1191 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
1192 | (flags & G_ARRAY) ? OPf_WANT_LIST : |
1193 | OPf_WANT_SCALAR); |
6e72f9df |
1194 | if (flags & G_KEEPERR) |
1195 | myop.op_flags |= OPf_SPECIAL; |
4633a7c4 |
1196 | |
22921e25 |
1197 | JMPENV_PUSH(ret); |
1198 | switch (ret) { |
4633a7c4 |
1199 | case 0: |
1200 | break; |
1201 | case 1: |
f86702cc |
1202 | STATUS_ALL_FAILURE; |
4633a7c4 |
1203 | /* FALL THROUGH */ |
1204 | case 2: |
1205 | /* my_exit() was called */ |
1206 | curstash = defstash; |
1207 | FREETMPS; |
54310121 |
1208 | JMPENV_POP; |
4633a7c4 |
1209 | if (statusvalue) |
1210 | croak("Callback called exit"); |
f86702cc |
1211 | my_exit_jump(); |
4633a7c4 |
1212 | /* NOTREACHED */ |
1213 | case 3: |
1214 | if (restartop) { |
1215 | op = restartop; |
1216 | restartop = 0; |
54310121 |
1217 | break; |
4633a7c4 |
1218 | } |
1219 | stack_sp = stack_base + oldmark; |
1220 | if (flags & G_ARRAY) |
1221 | retval = 0; |
1222 | else { |
1223 | retval = 1; |
1224 | *++stack_sp = &sv_undef; |
1225 | } |
1226 | goto cleanup; |
1227 | } |
1228 | |
1229 | if (op == (OP*)&myop) |
1230 | op = pp_entereval(); |
1231 | if (op) |
ab821d7f |
1232 | runops(); |
4633a7c4 |
1233 | retval = stack_sp - (stack_base + oldmark); |
6e72f9df |
1234 | if (!(flags & G_KEEPERR)) |
4633a7c4 |
1235 | sv_setpv(GvSV(errgv),""); |
1236 | |
1237 | cleanup: |
54310121 |
1238 | JMPENV_POP; |
4633a7c4 |
1239 | if (flags & G_DISCARD) { |
1240 | stack_sp = stack_base + oldmark; |
1241 | retval = 0; |
1242 | FREETMPS; |
1243 | LEAVE; |
1244 | } |
84902520 |
1245 | op = oldop; |
4633a7c4 |
1246 | return retval; |
1247 | } |
1248 | |
137443ea |
1249 | SV* |
1250 | perl_eval_pv(p, croak_on_error) |
1251 | char* p; |
1252 | I32 croak_on_error; |
1253 | { |
1254 | dSP; |
1255 | SV* sv = newSVpv(p, 0); |
1256 | |
1257 | PUSHMARK(sp); |
1258 | perl_eval_sv(sv, G_SCALAR); |
1259 | SvREFCNT_dec(sv); |
1260 | |
1261 | SPAGAIN; |
1262 | sv = POPs; |
1263 | PUTBACK; |
1264 | |
1265 | if (croak_on_error && SvTRUE(GvSV(errgv))) |
1266 | croak(SvPVx(GvSV(errgv), na)); |
1267 | |
1268 | return sv; |
1269 | } |
1270 | |
4633a7c4 |
1271 | /* Require a module. */ |
1272 | |
1273 | void |
1274 | perl_require_pv(pv) |
1275 | char* pv; |
1276 | { |
1277 | SV* sv = sv_newmortal(); |
1278 | sv_setpv(sv, "require '"); |
1279 | sv_catpv(sv, pv); |
1280 | sv_catpv(sv, "'"); |
1281 | perl_eval_sv(sv, G_DISCARD); |
79072805 |
1282 | } |
1283 | |
79072805 |
1284 | void |
79072805 |
1285 | magicname(sym,name,namlen) |
1286 | char *sym; |
1287 | char *name; |
1288 | I32 namlen; |
1289 | { |
1290 | register GV *gv; |
1291 | |
85e6fe83 |
1292 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 |
1293 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
1294 | } |
1295 | |
ab821d7f |
1296 | static void |
1a30305b |
1297 | usage(name) /* XXX move this out into a module ? */ |
4633a7c4 |
1298 | char *name; |
1299 | { |
ab821d7f |
1300 | /* This message really ought to be max 23 lines. |
1301 | * Removed -h because the user already knows that opton. Others? */ |
1302 | printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name); |
4633a7c4 |
1303 | printf("\n -0[octal] specify record separator (\\0, if no argument)"); |
ab821d7f |
1304 | printf("\n -a autosplit mode with -n or -p (splits $_ into @F)"); |
4633a7c4 |
1305 | printf("\n -c check syntax only (runs BEGIN and END blocks)"); |
1a30305b |
1306 | printf("\n -d[:debugger] run scripts under debugger"); |
4633a7c4 |
1307 | printf("\n -D[number/list] set debugging flags (argument is a bit mask or flags)"); |
ab821d7f |
1308 | printf("\n -e 'command' one line of script. Several -e's allowed. Omit [programfile]."); |
1309 | printf("\n -F/pattern/ split() pattern for autosplit (-a). The //'s are optional."); |
4633a7c4 |
1310 | printf("\n -i[extension] edit <> files in place (make backup if extension supplied)"); |
50492d44 |
1311 | printf("\n -Idirectory specify @INC/#include directory (may be used more than once)"); |
1312 | printf("\n -l[octal] enable line ending processing, specifies line terminator"); |
ab821d7f |
1313 | printf("\n -[mM][-]module.. executes `use/no module...' before executing your script."); |
50492d44 |
1314 | printf("\n -n assume 'while (<>) { ... }' loop around your script"); |
4633a7c4 |
1315 | printf("\n -p assume loop like -n but print line also like sed"); |
1316 | printf("\n -P run script through C preprocessor before compilation"); |
4633a7c4 |
1317 | printf("\n -s enable some switch parsing for switches after script name"); |
1318 | printf("\n -S look for the script using PATH environment variable"); |
1319 | printf("\n -T turn on tainting checks"); |
1320 | printf("\n -u dump core after parsing script"); |
1321 | printf("\n -U allow unsafe operations"); |
1322 | printf("\n -v print version number and patchlevel of perl"); |
1a30305b |
1323 | printf("\n -V[:variable] print perl configuration information"); |
90248788 |
1324 | printf("\n -w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT. Recommended."); |
4633a7c4 |
1325 | printf("\n -x[directory] strip off text before #!perl line and perhaps cd to directory\n"); |
1326 | } |
1327 | |
79072805 |
1328 | /* This routine handles any switches that can be given during run */ |
1329 | |
1330 | char * |
1331 | moreswitches(s) |
1332 | char *s; |
1333 | { |
1334 | I32 numlen; |
c07a80fd |
1335 | U32 rschar; |
79072805 |
1336 | |
1337 | switch (*s) { |
1338 | case '0': |
c07a80fd |
1339 | rschar = scan_oct(s, 4, &numlen); |
1340 | SvREFCNT_dec(nrs); |
1341 | if (rschar & ~((U8)~0)) |
1342 | nrs = &sv_undef; |
1343 | else if (!rschar && numlen >= 2) |
1344 | nrs = newSVpv("", 0); |
1345 | else { |
1346 | char ch = rschar; |
1347 | nrs = newSVpv(&ch, 1); |
79072805 |
1348 | } |
1349 | return s + numlen; |
2304df62 |
1350 | case 'F': |
1351 | minus_F = TRUE; |
a0d0e21e |
1352 | splitstr = savepv(s + 1); |
2304df62 |
1353 | s += strlen(s); |
1354 | return s; |
79072805 |
1355 | case 'a': |
1356 | minus_a = TRUE; |
1357 | s++; |
1358 | return s; |
1359 | case 'c': |
1360 | minus_c = TRUE; |
1361 | s++; |
1362 | return s; |
1363 | case 'd': |
bbce6d69 |
1364 | forbid_setid("-d"); |
4633a7c4 |
1365 | s++; |
c07a80fd |
1366 | if (*s == ':' || *s == '=') { |
46fc3d4c |
1367 | my_setenv("PERL5DB", form("use Devel::%s;", ++s)); |
4633a7c4 |
1368 | s += strlen(s); |
4633a7c4 |
1369 | } |
a0d0e21e |
1370 | if (!perldb) { |
84902520 |
1371 | perldb = PERLDB_ALL; |
a0d0e21e |
1372 | init_debugger(); |
1373 | } |
79072805 |
1374 | return s; |
1375 | case 'D': |
1376 | #ifdef DEBUGGING |
bbce6d69 |
1377 | forbid_setid("-D"); |
79072805 |
1378 | if (isALPHA(s[1])) { |
8990e307 |
1379 | static char debopts[] = "psltocPmfrxuLHXD"; |
79072805 |
1380 | char *d; |
1381 | |
93a17b20 |
1382 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
79072805 |
1383 | debug |= 1 << (d - debopts); |
1384 | } |
1385 | else { |
1386 | debug = atoi(s+1); |
1387 | for (s++; isDIGIT(*s); s++) ; |
1388 | } |
8990e307 |
1389 | debug |= 0x80000000; |
79072805 |
1390 | #else |
1391 | warn("Recompile perl with -DDEBUGGING to use -D switch\n"); |
a0d0e21e |
1392 | for (s++; isALNUM(*s); s++) ; |
79072805 |
1393 | #endif |
1394 | /*SUPPRESS 530*/ |
1395 | return s; |
4633a7c4 |
1396 | case 'h': |
1397 | usage(origargv[0]); |
1398 | exit(0); |
79072805 |
1399 | case 'i': |
1400 | if (inplace) |
1401 | Safefree(inplace); |
a0d0e21e |
1402 | inplace = savepv(s+1); |
79072805 |
1403 | /*SUPPRESS 530*/ |
1404 | for (s = inplace; *s && !isSPACE(*s); s++) ; |
1405 | *s = '\0'; |
1406 | break; |
1407 | case 'I': |
bbce6d69 |
1408 | forbid_setid("-I"); |
79072805 |
1409 | if (*++s) { |
774d564b |
1410 | char *e, *p; |
748a9306 |
1411 | for (e = s; *e && !isSPACE(*e); e++) ; |
774d564b |
1412 | p = savepvn(s, e-s); |
1413 | incpush(p, TRUE); |
1414 | Safefree(p); |
748a9306 |
1415 | if (*e) |
1416 | return e; |
79072805 |
1417 | } |
1418 | else |
463ee0b2 |
1419 | croak("No space allowed after -I"); |
79072805 |
1420 | break; |
1421 | case 'l': |
1422 | minus_l = TRUE; |
1423 | s++; |
a0d0e21e |
1424 | if (ors) |
1425 | Safefree(ors); |
79072805 |
1426 | if (isDIGIT(*s)) { |
a0d0e21e |
1427 | ors = savepv("\n"); |
79072805 |
1428 | orslen = 1; |
1429 | *ors = scan_oct(s, 3 + (*s == '0'), &numlen); |
1430 | s += numlen; |
1431 | } |
1432 | else { |
c07a80fd |
1433 | if (RsPARA(nrs)) { |
6e72f9df |
1434 | ors = "\n\n"; |
c07a80fd |
1435 | orslen = 2; |
1436 | } |
1437 | else |
1438 | ors = SvPV(nrs, orslen); |
6e72f9df |
1439 | ors = savepvn(ors, orslen); |
79072805 |
1440 | } |
1441 | return s; |
1a30305b |
1442 | case 'M': |
bbce6d69 |
1443 | forbid_setid("-M"); /* XXX ? */ |
1a30305b |
1444 | /* FALL THROUGH */ |
1445 | case 'm': |
bbce6d69 |
1446 | forbid_setid("-m"); /* XXX ? */ |
1a30305b |
1447 | if (*++s) { |
a5f75d66 |
1448 | char *start; |
1449 | char *use = "use "; |
1450 | /* -M-foo == 'no foo' */ |
1451 | if (*s == '-') { use = "no "; ++s; } |
1452 | Sv = newSVpv(use,0); |
1453 | start = s; |
1a30305b |
1454 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd |
1455 | while(isALNUM(*s) || *s==':') ++s; |
1456 | if (*s != '=') { |
1457 | sv_catpv(Sv, start); |
1458 | if (*(start-1) == 'm') { |
1459 | if (*s != '\0') |
1460 | croak("Can't use '%c' after -mname", *s); |
1461 | sv_catpv( Sv, " ()"); |
1462 | } |
1463 | } else { |
1464 | sv_catpvn(Sv, start, s-start); |
a5f75d66 |
1465 | sv_catpv(Sv, " split(/,/,q{"); |
c07a80fd |
1466 | sv_catpv(Sv, ++s); |
a5f75d66 |
1467 | sv_catpv(Sv, "})"); |
c07a80fd |
1468 | } |
1a30305b |
1469 | s += strlen(s); |
c07a80fd |
1470 | if (preambleav == NULL) |
1471 | preambleav = newAV(); |
1472 | av_push(preambleav, Sv); |
1a30305b |
1473 | } |
1474 | else |
1475 | croak("No space allowed after -%c", *(s-1)); |
1476 | return s; |
79072805 |
1477 | case 'n': |
1478 | minus_n = TRUE; |
1479 | s++; |
1480 | return s; |
1481 | case 'p': |
1482 | minus_p = TRUE; |
1483 | s++; |
1484 | return s; |
1485 | case 's': |
bbce6d69 |
1486 | forbid_setid("-s"); |
79072805 |
1487 | doswitches = TRUE; |
1488 | s++; |
1489 | return s; |
463ee0b2 |
1490 | case 'T': |
f86702cc |
1491 | if (!tainting) |
9607fc9c |
1492 | croak("Too late for \"-T\" option"); |
463ee0b2 |
1493 | s++; |
1494 | return s; |
79072805 |
1495 | case 'u': |
1496 | do_undump = TRUE; |
1497 | s++; |
1498 | return s; |
1499 | case 'U': |
1500 | unsafe = TRUE; |
1501 | s++; |
1502 | return s; |
1503 | case 'v': |
a5f75d66 |
1504 | #if defined(SUBVERSION) && SUBVERSION > 0 |
1505 | printf("\nThis is perl, version 5.%03d_%02d", PATCHLEVEL, SUBVERSION); |
1506 | #else |
1507 | printf("\nThis is perl, version %s",patchlevel); |
1508 | #endif |
1a30305b |
1509 | |
44a8e56a |
1510 | printf("\n\nCopyright 1987-1997, Larry Wall\n"); |
79072805 |
1511 | #ifdef MSDOS |
55497cff |
1512 | printf("\n\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); |
1513 | #endif |
1514 | #ifdef DJGPP |
1515 | printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n"); |
4633a7c4 |
1516 | #endif |
79072805 |
1517 | #ifdef OS2 |
5dd60ef7 |
1518 | printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" |
9607fc9c |
1519 | "Version 5 port Copyright (c) 1994-1997, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 |
1520 | #endif |
79072805 |
1521 | #ifdef atarist |
760ac839 |
1522 | printf("atariST series port, ++jrb bammi@cadence.com\n"); |
79072805 |
1523 | #endif |
760ac839 |
1524 | printf("\n\ |
79072805 |
1525 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
760ac839 |
1526 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n"); |
79072805 |
1527 | exit(0); |
1528 | case 'w': |
1529 | dowarn = TRUE; |
1530 | s++; |
1531 | return s; |
a0d0e21e |
1532 | case '*': |
79072805 |
1533 | case ' ': |
1534 | if (s[1] == '-') /* Additional switches on #! line. */ |
1535 | return s+2; |
1536 | break; |
a0d0e21e |
1537 | case '-': |
79072805 |
1538 | case 0: |
1539 | case '\n': |
1540 | case '\t': |
1541 | break; |
aa689395 |
1542 | #ifdef ALTERNATE_SHEBANG |
1543 | case 'S': /* OS/2 needs -S on "extproc" line. */ |
1544 | break; |
1545 | #endif |
a0d0e21e |
1546 | case 'P': |
1547 | if (preprocess) |
1548 | return s+1; |
1549 | /* FALL THROUGH */ |
79072805 |
1550 | default: |
a0d0e21e |
1551 | croak("Can't emulate -%.1s on #! line",s); |
79072805 |
1552 | } |
1553 | return Nullch; |
1554 | } |
1555 | |
1556 | /* compliments of Tom Christiansen */ |
1557 | |
1558 | /* unexec() can be found in the Gnu emacs distribution */ |
1559 | |
1560 | void |
1561 | my_unexec() |
1562 | { |
1563 | #ifdef UNEXEC |
46fc3d4c |
1564 | SV* prog; |
1565 | SV* file; |
79072805 |
1566 | int status; |
1567 | extern int etext; |
1568 | |
46fc3d4c |
1569 | prog = newSVpv(BIN_EXP); |
1570 | sv_catpv(prog, "/perl"); |
1571 | file = newSVpv(origfilename); |
1572 | sv_catpv(file, ".perldump"); |
79072805 |
1573 | |
46fc3d4c |
1574 | status = unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0); |
79072805 |
1575 | if (status) |
46fc3d4c |
1576 | PerlIO_printf(PerlIO_stderr(), "unexec of %s into %s failed!\n", |
1577 | SvPVX(prog), SvPVX(file)); |
a0d0e21e |
1578 | exit(status); |
79072805 |
1579 | #else |
a5f75d66 |
1580 | # ifdef VMS |
1581 | # include <lib$routines.h> |
1582 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ |
aa689395 |
1583 | # else |
79072805 |
1584 | ABORT(); /* for use with undump */ |
aa689395 |
1585 | # endif |
a5f75d66 |
1586 | #endif |
79072805 |
1587 | } |
1588 | |
1589 | static void |
1590 | init_main_stash() |
1591 | { |
463ee0b2 |
1592 | GV *gv; |
6e72f9df |
1593 | |
1594 | /* Note that strtab is a rather special HV. Assumptions are made |
1595 | about not iterating on it, and not adding tie magic to it. |
1596 | It is properly deallocated in perl_destruct() */ |
1597 | strtab = newHV(); |
1598 | HvSHAREKEYS_off(strtab); /* mandatory */ |
1599 | Newz(506,((XPVHV*)SvANY(strtab))->xhv_array, |
1600 | sizeof(HE*) * (((XPVHV*)SvANY(strtab))->xhv_max + 1), char); |
1601 | |
463ee0b2 |
1602 | curstash = defstash = newHV(); |
79072805 |
1603 | curstname = newSVpv("main",4); |
adbc6bb1 |
1604 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
1605 | SvREFCNT_dec(GvHV(gv)); |
1606 | GvHV(gv) = (HV*)SvREFCNT_inc(defstash); |
463ee0b2 |
1607 | SvREADONLY_on(gv); |
a0d0e21e |
1608 | HvNAME(defstash) = savepv("main"); |
85e6fe83 |
1609 | incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); |
a5f75d66 |
1610 | GvMULTI_on(incgv); |
a0d0e21e |
1611 | defgv = gv_fetchpv("_",TRUE, SVt_PVAV); |
4633a7c4 |
1612 | errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); |
a5f75d66 |
1613 | GvMULTI_on(errgv); |
84902520 |
1614 | (void)form("%240s",""); /* Preallocate temp - for immediate signals. */ |
1615 | sv_grow(GvSV(errgv), 240); /* Preallocate - for immediate signals. */ |
552a7a9b |
1616 | sv_setpvn(GvSV(errgv), "", 0); |
8990e307 |
1617 | curstash = defstash; |
1618 | compiling.cop_stash = defstash; |
adbc6bb1 |
1619 | debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); |
4633a7c4 |
1620 | /* We must init $/ before switches are processed. */ |
1621 | sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1); |
79072805 |
1622 | } |
1623 | |
a0d0e21e |
1624 | #ifdef CAN_PROTOTYPE |
1625 | static void |
1626 | open_script(char *scriptname, bool dosearch, SV *sv) |
1627 | #else |
79072805 |
1628 | static void |
1629 | open_script(scriptname,dosearch,sv) |
1630 | char *scriptname; |
1631 | bool dosearch; |
1632 | SV *sv; |
a0d0e21e |
1633 | #endif |
79072805 |
1634 | { |
1635 | char *xfound = Nullch; |
1636 | char *xfailed = Nullch; |
1637 | register char *s; |
1638 | I32 len; |
a38d6535 |
1639 | int retval; |
1640 | #if defined(DOSISH) && !defined(OS2) && !defined(atarist) |
fc36a67e |
1641 | # define SEARCH_EXTS ".bat", ".cmd", NULL |
1642 | # define MAX_EXT_LEN 4 |
a38d6535 |
1643 | #endif |
d8c2d278 |
1644 | #ifdef OS2 |
1645 | # define SEARCH_EXTS ".cmd", ".btm", ".bat", ".pl", NULL |
1646 | # define MAX_EXT_LEN 4 |
1647 | #endif |
ab821d7f |
1648 | #ifdef VMS |
1649 | # define SEARCH_EXTS ".pl", ".com", NULL |
fc36a67e |
1650 | # define MAX_EXT_LEN 4 |
ab821d7f |
1651 | #endif |
a38d6535 |
1652 | /* additional extensions to try in each dir if scriptname not found */ |
1653 | #ifdef SEARCH_EXTS |
1654 | char *ext[] = { SEARCH_EXTS }; |
2a92aaa0 |
1655 | int extidx = 0, i = 0; |
1656 | char *curext = Nullch; |
fc36a67e |
1657 | #else |
1658 | # define MAX_EXT_LEN 0 |
a38d6535 |
1659 | #endif |
79072805 |
1660 | |
2a92aaa0 |
1661 | /* |
1662 | * If dosearch is true and if scriptname does not contain path |
1663 | * delimiters, search the PATH for scriptname. |
1664 | * |
1665 | * If SEARCH_EXTS is also defined, will look for each |
1666 | * scriptname{SEARCH_EXTS} whenever scriptname is not found |
1667 | * while searching the PATH. |
1668 | * |
1669 | * Assuming SEARCH_EXTS is C<".foo",".bar",NULL>, PATH search |
1670 | * proceeds as follows: |
1671 | * If DOSISH: |
1672 | * + look for ./scriptname{,.foo,.bar} |
1673 | * + search the PATH for scriptname{,.foo,.bar} |
1674 | * |
1675 | * If !DOSISH: |
1676 | * + look *only* in the PATH for scriptname{,.foo,.bar} (note |
1677 | * this will not look in '.' if it's not in the PATH) |
1678 | */ |
1679 | |
c07a80fd |
1680 | #ifdef VMS |
6e72f9df |
1681 | if (dosearch) { |
1682 | int hasdir, idx = 0, deftypes = 1; |
1a2dec3c |
1683 | bool seen_dot = 1; |
6e72f9df |
1684 | |
1685 | hasdir = (strpbrk(scriptname,":[</") != Nullch) ; |
1686 | /* The first time through, just add SEARCH_EXTS to whatever we |
1687 | * already have, so we can check for default file types. */ |
fc36a67e |
1688 | while (deftypes || |
1689 | (!hasdir && my_trnlnm("DCL$PATH",tokenbuf,idx++)) ) |
1690 | { |
1691 | if (deftypes) { |
1692 | deftypes = 0; |
1693 | *tokenbuf = '\0'; |
1694 | } |
1695 | if ((strlen(tokenbuf) + strlen(scriptname) |
1696 | + MAX_EXT_LEN) >= sizeof tokenbuf) |
1697 | continue; /* don't search dir with too-long name */ |
1698 | strcat(tokenbuf, scriptname); |
c07a80fd |
1699 | #else /* !VMS */ |
2a92aaa0 |
1700 | |
1701 | #ifdef DOSISH |
1702 | if (strEQ(scriptname, "-")) |
84902520 |
1703 | dosearch = 0; |
2a92aaa0 |
1704 | if (dosearch) { /* Look in '.' first. */ |
1705 | char *cur = scriptname; |
1706 | #ifdef SEARCH_EXTS |
1707 | if ((curext = strrchr(scriptname,'.'))) /* possible current ext */ |
1708 | while (ext[i]) |
1709 | if (strEQ(ext[i++],curext)) { |
1710 | extidx = -1; /* already has an ext */ |
1711 | break; |
1712 | } |
1713 | do { |
1714 | #endif |
1715 | DEBUG_p(PerlIO_printf(Perl_debug_log, |
1716 | "Looking for %s\n",cur)); |
1717 | if (Stat(cur,&statbuf) >= 0) { |
1718 | dosearch = 0; |
1719 | scriptname = cur; |
84902520 |
1720 | #ifdef SEARCH_EXTS |
2a92aaa0 |
1721 | break; |
84902520 |
1722 | #endif |
2a92aaa0 |
1723 | } |
1724 | #ifdef SEARCH_EXTS |
1725 | if (cur == scriptname) { |
1726 | len = strlen(scriptname); |
1727 | if (len+MAX_EXT_LEN+1 >= sizeof(tokenbuf)) |
1728 | break; |
1729 | cur = strcpy(tokenbuf, scriptname); |
1730 | } |
1731 | } while (extidx >= 0 && ext[extidx] /* try an extension? */ |
1732 | && strcpy(tokenbuf+len, ext[extidx++])); |
1733 | #endif |
1734 | } |
1735 | #endif |
84902520 |
1736 | |
e92c4225 |
1737 | if (dosearch && !strchr(scriptname, '/') |
1738 | #ifdef DOSISH |
1739 | && !strchr(scriptname, '\\') |
1740 | #endif |
1741 | && (s = getenv("PATH"))) { |
2a92aaa0 |
1742 | bool seen_dot = 0; |
84902520 |
1743 | |
79072805 |
1744 | bufend = s + strlen(s); |
fc36a67e |
1745 | while (s < bufend) { |
2a92aaa0 |
1746 | #if defined(atarist) || defined(DOSISH) |
1747 | for (len = 0; *s |
1748 | # ifdef atarist |
1749 | && *s != ',' |
1750 | # endif |
1751 | && *s != ';'; len++, s++) { |
fc36a67e |
1752 | if (len < sizeof tokenbuf) |
1753 | tokenbuf[len] = *s; |
1754 | } |
1755 | if (len < sizeof tokenbuf) |
1756 | tokenbuf[len] = '\0'; |
84902520 |
1757 | #else /* ! (atarist || DOSISH) */ |
1758 | s = delimcpy(tokenbuf, tokenbuf + sizeof tokenbuf, s, bufend, |
1759 | ':', |
1760 | &len); |
1761 | #endif /* ! (atarist || DOSISH) */ |
fc36a67e |
1762 | if (s < bufend) |
79072805 |
1763 | s++; |
fc36a67e |
1764 | if (len + 1 + strlen(scriptname) + MAX_EXT_LEN >= sizeof tokenbuf) |
1765 | continue; /* don't search dir with too-long name */ |
1766 | if (len |
fc36a67e |
1767 | #if defined(atarist) || defined(DOSISH) |
2a92aaa0 |
1768 | && tokenbuf[len - 1] != '/' |
fc36a67e |
1769 | && tokenbuf[len - 1] != '\\' |
79072805 |
1770 | #endif |
fc36a67e |
1771 | ) |
1772 | tokenbuf[len++] = '/'; |
84902520 |
1773 | if (len == 2 && tokenbuf[0] == '.') |
2a92aaa0 |
1774 | seen_dot = 1; |
fc36a67e |
1775 | (void)strcpy(tokenbuf + len, scriptname); |
c07a80fd |
1776 | #endif /* !VMS */ |
a38d6535 |
1777 | |
1778 | #ifdef SEARCH_EXTS |
1779 | len = strlen(tokenbuf); |
1780 | if (extidx > 0) /* reset after previous loop */ |
1781 | extidx = 0; |
1782 | do { |
1783 | #endif |
760ac839 |
1784 | DEBUG_p(PerlIO_printf(Perl_debug_log, "Looking for %s\n",tokenbuf)); |
a38d6535 |
1785 | retval = Stat(tokenbuf,&statbuf); |
1786 | #ifdef SEARCH_EXTS |
1787 | } while ( retval < 0 /* not there */ |
1788 | && extidx>=0 && ext[extidx] /* try an extension? */ |
1789 | && strcpy(tokenbuf+len, ext[extidx++]) |
1790 | ); |
1791 | #endif |
1792 | if (retval < 0) |
79072805 |
1793 | continue; |
1794 | if (S_ISREG(statbuf.st_mode) |
c90c0ff4 |
1795 | && cando(S_IRUSR,TRUE,&statbuf) |
1796 | #ifndef DOSISH |
1797 | && cando(S_IXUSR,TRUE,&statbuf) |
1798 | #endif |
1799 | ) |
1800 | { |
79072805 |
1801 | xfound = tokenbuf; /* bingo! */ |
1802 | break; |
1803 | } |
1804 | if (!xfailed) |
a0d0e21e |
1805 | xfailed = savepv(tokenbuf); |
79072805 |
1806 | } |
2a92aaa0 |
1807 | #ifndef DOSISH |
1808 | if (!xfound && !seen_dot && !xfailed && (Stat(scriptname,&statbuf) < 0)) |
84902520 |
1809 | #endif |
1810 | seen_dot = 1; /* Disable message. */ |
79072805 |
1811 | if (!xfound) |
84902520 |
1812 | croak("Can't %s %s%s%s", |
2a92aaa0 |
1813 | (xfailed ? "execute" : "find"), |
1814 | (xfailed ? xfailed : scriptname), |
1815 | (xfailed ? "" : " on PATH"), |
1816 | (xfailed || seen_dot) ? "" : ", '.' not in PATH"); |
79072805 |
1817 | if (xfailed) |
1818 | Safefree(xfailed); |
1819 | scriptname = xfound; |
1820 | } |
1821 | |
96436eeb |
1822 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { |
1823 | char *s = scriptname + 8; |
1824 | fdscript = atoi(s); |
1825 | while (isDIGIT(*s)) |
1826 | s++; |
1827 | if (*s) |
1828 | scriptname = s + 1; |
1829 | } |
1830 | else |
1831 | fdscript = -1; |
ab821d7f |
1832 | origfilename = savepv(e_tmpname ? "-e" : scriptname); |
79072805 |
1833 | curcop->cop_filegv = gv_fetchfile(origfilename); |
1834 | if (strEQ(origfilename,"-")) |
1835 | scriptname = ""; |
96436eeb |
1836 | if (fdscript >= 0) { |
760ac839 |
1837 | rsfp = PerlIO_fdopen(fdscript,"r"); |
96436eeb |
1838 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
7aa04957 |
1839 | if (rsfp) |
1840 | fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ |
96436eeb |
1841 | #endif |
1842 | } |
1843 | else if (preprocess) { |
46fc3d4c |
1844 | char *cpp_cfg = CPPSTDIN; |
1845 | SV *cpp = NEWSV(0,0); |
1846 | SV *cmd = NEWSV(0,0); |
1847 | |
1848 | if (strEQ(cpp_cfg, "cppstdin")) |
1849 | sv_catpvf(cpp, "%s/", BIN_EXP); |
1850 | sv_catpv(cpp, cpp_cfg); |
79072805 |
1851 | |
79072805 |
1852 | sv_catpv(sv,"-I"); |
fed7345c |
1853 | sv_catpv(sv,PRIVLIB_EXP); |
46fc3d4c |
1854 | |
79072805 |
1855 | #ifdef MSDOS |
46fc3d4c |
1856 | sv_setpvf(cmd, "\ |
79072805 |
1857 | sed %s -e \"/^[^#]/b\" \ |
1858 | -e \"/^#[ ]*include[ ]/b\" \ |
1859 | -e \"/^#[ ]*define[ ]/b\" \ |
1860 | -e \"/^#[ ]*if[ ]/b\" \ |
1861 | -e \"/^#[ ]*ifdef[ ]/b\" \ |
1862 | -e \"/^#[ ]*ifndef[ ]/b\" \ |
1863 | -e \"/^#[ ]*else/b\" \ |
1864 | -e \"/^#[ ]*elif[ ]/b\" \ |
1865 | -e \"/^#[ ]*undef[ ]/b\" \ |
1866 | -e \"/^#[ ]*endif/b\" \ |
1867 | -e \"s/^#.*//\" \ |
fc36a67e |
1868 | %s | %_ -C %_ %s", |
79072805 |
1869 | (doextract ? "-e \"1,/^#/d\n\"" : ""), |
1870 | #else |
46fc3d4c |
1871 | sv_setpvf(cmd, "\ |
79072805 |
1872 | %s %s -e '/^[^#]/b' \ |
1873 | -e '/^#[ ]*include[ ]/b' \ |
1874 | -e '/^#[ ]*define[ ]/b' \ |
1875 | -e '/^#[ ]*if[ ]/b' \ |
1876 | -e '/^#[ ]*ifdef[ ]/b' \ |
1877 | -e '/^#[ ]*ifndef[ ]/b' \ |
1878 | -e '/^#[ ]*else/b' \ |
1879 | -e '/^#[ ]*elif[ ]/b' \ |
1880 | -e '/^#[ ]*undef[ ]/b' \ |
1881 | -e '/^#[ ]*endif/b' \ |
1882 | -e 's/^[ ]*#.*//' \ |
fc36a67e |
1883 | %s | %_ -C %_ %s", |
79072805 |
1884 | #ifdef LOC_SED |
1885 | LOC_SED, |
1886 | #else |
1887 | "sed", |
1888 | #endif |
1889 | (doextract ? "-e '1,/^#/d\n'" : ""), |
1890 | #endif |
46fc3d4c |
1891 | scriptname, cpp, sv, CPPMINUS); |
79072805 |
1892 | doextract = FALSE; |
1893 | #ifdef IAMSUID /* actually, this is caught earlier */ |
1894 | if (euid != uid && !euid) { /* if running suidperl */ |
1895 | #ifdef HAS_SETEUID |
1896 | (void)seteuid(uid); /* musn't stay setuid root */ |
1897 | #else |
1898 | #ifdef HAS_SETREUID |
85e6fe83 |
1899 | (void)setreuid((Uid_t)-1, uid); |
1900 | #else |
1901 | #ifdef HAS_SETRESUID |
1902 | (void)setresuid((Uid_t)-1, uid, (Uid_t)-1); |
79072805 |
1903 | #else |
1904 | setuid(uid); |
1905 | #endif |
1906 | #endif |
85e6fe83 |
1907 | #endif |
79072805 |
1908 | if (geteuid() != uid) |
463ee0b2 |
1909 | croak("Can't do seteuid!\n"); |
79072805 |
1910 | } |
1911 | #endif /* IAMSUID */ |
46fc3d4c |
1912 | rsfp = my_popen(SvPVX(cmd), "r"); |
1913 | SvREFCNT_dec(cmd); |
1914 | SvREFCNT_dec(cpp); |
79072805 |
1915 | } |
1916 | else if (!*scriptname) { |
bbce6d69 |
1917 | forbid_setid("program input from stdin"); |
760ac839 |
1918 | rsfp = PerlIO_stdin(); |
79072805 |
1919 | } |
96436eeb |
1920 | else { |
760ac839 |
1921 | rsfp = PerlIO_open(scriptname,"r"); |
96436eeb |
1922 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
7aa04957 |
1923 | if (rsfp) |
1924 | fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ |
96436eeb |
1925 | #endif |
1926 | } |
5dd60ef7 |
1927 | if (e_tmpname) { |
1928 | e_fp = rsfp; |
1929 | } |
7aa04957 |
1930 | if (!rsfp) { |
13281fa4 |
1931 | #ifdef DOSUID |
a687059c |
1932 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
a0d0e21e |
1933 | if (euid && Stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 && |
13281fa4 |
1934 | statbuf.st_mode & (S_ISUID|S_ISGID)) { |
46fc3d4c |
1935 | /* try again */ |
1936 | execv(form("%s/sperl%s", BIN_EXP, patchlevel), origargv); |
463ee0b2 |
1937 | croak("Can't do setuid\n"); |
13281fa4 |
1938 | } |
1939 | #endif |
1940 | #endif |
463ee0b2 |
1941 | croak("Can't open perl script \"%s\": %s\n", |
2304df62 |
1942 | SvPVX(GvSV(curcop->cop_filegv)), Strerror(errno)); |
13281fa4 |
1943 | } |
79072805 |
1944 | } |
8d063cd8 |
1945 | |
79072805 |
1946 | static void |
96436eeb |
1947 | validate_suid(validarg, scriptname) |
79072805 |
1948 | char *validarg; |
96436eeb |
1949 | char *scriptname; |
79072805 |
1950 | { |
96436eeb |
1951 | int which; |
1952 | |
13281fa4 |
1953 | /* do we need to emulate setuid on scripts? */ |
1954 | |
1955 | /* This code is for those BSD systems that have setuid #! scripts disabled |
1956 | * in the kernel because of a security problem. Merely defining DOSUID |
1957 | * in perl will not fix that problem, but if you have disabled setuid |
1958 | * scripts in the kernel, this will attempt to emulate setuid and setgid |
1959 | * on scripts that have those now-otherwise-useless bits set. The setuid |
27e2fb84 |
1960 | * root version must be called suidperl or sperlN.NNN. If regular perl |
1961 | * discovers that it has opened a setuid script, it calls suidperl with |
1962 | * the same argv that it had. If suidperl finds that the script it has |
1963 | * just opened is NOT setuid root, it sets the effective uid back to the |
1964 | * uid. We don't just make perl setuid root because that loses the |
1965 | * effective uid we had before invoking perl, if it was different from the |
1966 | * uid. |
13281fa4 |
1967 | * |
1968 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must |
1969 | * be defined in suidperl only. suidperl must be setuid root. The |
1970 | * Configure script will set this up for you if you want it. |
1971 | */ |
a687059c |
1972 | |
13281fa4 |
1973 | #ifdef DOSUID |
6e72f9df |
1974 | char *s, *s2; |
a0d0e21e |
1975 | |
760ac839 |
1976 | if (Fstat(PerlIO_fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */ |
463ee0b2 |
1977 | croak("Can't stat script \"%s\"",origfilename); |
96436eeb |
1978 | if (fdscript < 0 && statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 |
1979 | I32 len; |
13281fa4 |
1980 | |
a687059c |
1981 | #ifdef IAMSUID |
fe14fcc3 |
1982 | #ifndef HAS_SETREUID |
a687059c |
1983 | /* On this access check to make sure the directories are readable, |
1984 | * there is actually a small window that the user could use to make |
1985 | * filename point to an accessible directory. So there is a faint |
1986 | * chance that someone could execute a setuid script down in a |
1987 | * non-accessible directory. I don't know what to do about that. |
1988 | * But I don't think it's too important. The manual lies when |
1989 | * it says access() is useful in setuid programs. |
1990 | */ |
463ee0b2 |
1991 | if (access(SvPVX(GvSV(curcop->cop_filegv)),1)) /*double check*/ |
1992 | croak("Permission denied"); |
a687059c |
1993 | #else |
1994 | /* If we can swap euid and uid, then we can determine access rights |
1995 | * with a simple stat of the file, and then compare device and |
1996 | * inode to make sure we did stat() on the same file we opened. |
1997 | * Then we just have to make sure he or she can execute it. |
1998 | */ |
1999 | { |
2000 | struct stat tmpstatbuf; |
2001 | |
85e6fe83 |
2002 | if ( |
2003 | #ifdef HAS_SETREUID |
2004 | setreuid(euid,uid) < 0 |
a0d0e21e |
2005 | #else |
2006 | # if HAS_SETRESUID |
85e6fe83 |
2007 | setresuid(euid,uid,(Uid_t)-1) < 0 |
a0d0e21e |
2008 | # endif |
85e6fe83 |
2009 | #endif |
2010 | || getuid() != euid || geteuid() != uid) |
463ee0b2 |
2011 | croak("Can't swap uid and euid"); /* really paranoid */ |
a0d0e21e |
2012 | if (Stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0) |
463ee0b2 |
2013 | croak("Permission denied"); /* testing full pathname here */ |
a687059c |
2014 | if (tmpstatbuf.st_dev != statbuf.st_dev || |
2015 | tmpstatbuf.st_ino != statbuf.st_ino) { |
760ac839 |
2016 | (void)PerlIO_close(rsfp); |
79072805 |
2017 | if (rsfp = my_popen("/bin/mail root","w")) { /* heh, heh */ |
760ac839 |
2018 | PerlIO_printf(rsfp, |
ff0cee69 |
2019 | "User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\ |
2020 | (Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n", |
2021 | (long)uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino, |
2022 | (long)statbuf.st_dev, (long)statbuf.st_ino, |
463ee0b2 |
2023 | SvPVX(GvSV(curcop->cop_filegv)), |
ff0cee69 |
2024 | (long)statbuf.st_uid, (long)statbuf.st_gid); |
79072805 |
2025 | (void)my_pclose(rsfp); |
a687059c |
2026 | } |
463ee0b2 |
2027 | croak("Permission denied\n"); |
a687059c |
2028 | } |
85e6fe83 |
2029 | if ( |
2030 | #ifdef HAS_SETREUID |
2031 | setreuid(uid,euid) < 0 |
a0d0e21e |
2032 | #else |
2033 | # if defined(HAS_SETRESUID) |
85e6fe83 |
2034 | setresuid(uid,euid,(Uid_t)-1) < 0 |
a0d0e21e |
2035 | # endif |
85e6fe83 |
2036 | #endif |
2037 | || getuid() != uid || geteuid() != euid) |
463ee0b2 |
2038 | croak("Can't reswap uid and euid"); |
27e2fb84 |
2039 | if (!cando(S_IXUSR,FALSE,&statbuf)) /* can real uid exec? */ |
463ee0b2 |
2040 | croak("Permission denied\n"); |
a687059c |
2041 | } |
fe14fcc3 |
2042 | #endif /* HAS_SETREUID */ |
a687059c |
2043 | #endif /* IAMSUID */ |
2044 | |
27e2fb84 |
2045 | if (!S_ISREG(statbuf.st_mode)) |
463ee0b2 |
2046 | croak("Permission denied"); |
27e2fb84 |
2047 | if (statbuf.st_mode & S_IWOTH) |
463ee0b2 |
2048 | croak("Setuid/gid script is writable by world"); |
13281fa4 |
2049 | doswitches = FALSE; /* -s is insecure in suid */ |
79072805 |
2050 | curcop->cop_line++; |
760ac839 |
2051 | if (sv_gets(linestr, rsfp, 0) == Nullch || |
2052 | strnNE(SvPV(linestr,na),"#!",2) ) /* required even on Sys V */ |
463ee0b2 |
2053 | croak("No #! line"); |
760ac839 |
2054 | s = SvPV(linestr,na)+2; |
663a0e37 |
2055 | if (*s == ' ') s++; |
45d8adaa |
2056 | while (!isSPACE(*s)) s++; |
760ac839 |
2057 | for (s2 = s; (s2 > SvPV(linestr,na)+2 && |
6e72f9df |
2058 | (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ; |
2059 | if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ |
463ee0b2 |
2060 | croak("Not a perl script"); |
a687059c |
2061 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 |
2062 | /* |
2063 | * #! arg must be what we saw above. They can invoke it by |
2064 | * mentioning suidperl explicitly, but they may not add any strange |
2065 | * arguments beyond what #! says if they do invoke suidperl that way. |
2066 | */ |
2067 | len = strlen(validarg); |
2068 | if (strEQ(validarg," PHOOEY ") || |
45d8adaa |
2069 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
463ee0b2 |
2070 | croak("Args must match #! line"); |
a687059c |
2071 | |
2072 | #ifndef IAMSUID |
2073 | if (euid != uid && (statbuf.st_mode & S_ISUID) && |
2074 | euid == statbuf.st_uid) |
2075 | if (!do_undump) |
463ee0b2 |
2076 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c |
2077 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
2078 | #endif /* IAMSUID */ |
13281fa4 |
2079 | |
2080 | if (euid) { /* oops, we're not the setuid root perl */ |
760ac839 |
2081 | (void)PerlIO_close(rsfp); |
13281fa4 |
2082 | #ifndef IAMSUID |
46fc3d4c |
2083 | /* try again */ |
2084 | execv(form("%s/sperl%s", BIN_EXP, patchlevel), origargv); |
13281fa4 |
2085 | #endif |
463ee0b2 |
2086 | croak("Can't do setuid\n"); |
13281fa4 |
2087 | } |
2088 | |
83025b21 |
2089 | if (statbuf.st_mode & S_ISGID && statbuf.st_gid != egid) { |
fe14fcc3 |
2090 | #ifdef HAS_SETEGID |
a687059c |
2091 | (void)setegid(statbuf.st_gid); |
2092 | #else |
fe14fcc3 |
2093 | #ifdef HAS_SETREGID |
85e6fe83 |
2094 | (void)setregid((Gid_t)-1,statbuf.st_gid); |
2095 | #else |
2096 | #ifdef HAS_SETRESGID |
2097 | (void)setresgid((Gid_t)-1,statbuf.st_gid,(Gid_t)-1); |
a687059c |
2098 | #else |
2099 | setgid(statbuf.st_gid); |
2100 | #endif |
2101 | #endif |
85e6fe83 |
2102 | #endif |
83025b21 |
2103 | if (getegid() != statbuf.st_gid) |
463ee0b2 |
2104 | croak("Can't do setegid!\n"); |
83025b21 |
2105 | } |
a687059c |
2106 | if (statbuf.st_mode & S_ISUID) { |
2107 | if (statbuf.st_uid != euid) |
fe14fcc3 |
2108 | #ifdef HAS_SETEUID |
a687059c |
2109 | (void)seteuid(statbuf.st_uid); /* all that for this */ |
2110 | #else |
fe14fcc3 |
2111 | #ifdef HAS_SETREUID |
85e6fe83 |
2112 | (void)setreuid((Uid_t)-1,statbuf.st_uid); |
2113 | #else |
2114 | #ifdef HAS_SETRESUID |
2115 | (void)setresuid((Uid_t)-1,statbuf.st_uid,(Uid_t)-1); |
a687059c |
2116 | #else |
2117 | setuid(statbuf.st_uid); |
2118 | #endif |
2119 | #endif |
85e6fe83 |
2120 | #endif |
83025b21 |
2121 | if (geteuid() != statbuf.st_uid) |
463ee0b2 |
2122 | croak("Can't do seteuid!\n"); |
a687059c |
2123 | } |
83025b21 |
2124 | else if (uid) { /* oops, mustn't run as root */ |
fe14fcc3 |
2125 | #ifdef HAS_SETEUID |
85e6fe83 |
2126 | (void)seteuid((Uid_t)uid); |
a687059c |
2127 | #else |
fe14fcc3 |
2128 | #ifdef HAS_SETREUID |
85e6fe83 |
2129 | (void)setreuid((Uid_t)-1,(Uid_t)uid); |
a687059c |
2130 | #else |
85e6fe83 |
2131 | #ifdef HAS_SETRESUID |
2132 | (void)setresuid((Uid_t)-1,(Uid_t)uid,(Uid_t)-1); |
2133 | #else |
2134 | setuid((Uid_t)uid); |
2135 | #endif |
a687059c |
2136 | #endif |
2137 | #endif |
83025b21 |
2138 | if (geteuid() != uid) |
463ee0b2 |
2139 | croak("Can't do seteuid!\n"); |
83025b21 |
2140 | } |
748a9306 |
2141 | init_ids(); |
27e2fb84 |
2142 | if (!cando(S_IXUSR,TRUE,&statbuf)) |
463ee0b2 |
2143 | croak("Permission denied\n"); /* they can't do this */ |
13281fa4 |
2144 | } |
2145 | #ifdef IAMSUID |
2146 | else if (preprocess) |
463ee0b2 |
2147 | croak("-P not allowed for setuid/setgid script\n"); |
96436eeb |
2148 | else if (fdscript >= 0) |
2149 | croak("fd script not allowed in suidperl\n"); |
13281fa4 |
2150 | else |
463ee0b2 |
2151 | croak("Script is not setuid/setgid in suidperl\n"); |
96436eeb |
2152 | |
2153 | /* We absolutely must clear out any saved ids here, so we */ |
2154 | /* exec the real perl, substituting fd script for scriptname. */ |
2155 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ |
760ac839 |
2156 | PerlIO_rewind(rsfp); |
2157 | lseek(PerlIO_fileno(rsfp),(Off_t)0,0); /* just in case rewind didn't */ |
96436eeb |
2158 | for (which = 1; origargv[which] && origargv[which] != scriptname; which++) ; |
2159 | if (!origargv[which]) |
2160 | croak("Permission denied"); |
46fc3d4c |
2161 | origargv[which] = savepv(form("/dev/fd/%d/%s", |
2162 | PerlIO_fileno(rsfp), origargv[which])); |
96436eeb |
2163 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
760ac839 |
2164 | fcntl(PerlIO_fileno(rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb |
2165 | #endif |
46fc3d4c |
2166 | execv(form("%s/perl%s", BIN_EXP, patchlevel), origargv); /* try again */ |
96436eeb |
2167 | croak("Can't do setuid\n"); |
13281fa4 |
2168 | #endif /* IAMSUID */ |
a687059c |
2169 | #else /* !DOSUID */ |
a687059c |
2170 | if (euid != uid || egid != gid) { /* (suidperl doesn't exist, in fact) */ |
2171 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW |
760ac839 |
2172 | Fstat(PerlIO_fileno(rsfp),&statbuf); /* may be either wrapped or real suid */ |
a687059c |
2173 | if ((euid != uid && euid == statbuf.st_uid && statbuf.st_mode & S_ISUID) |
2174 | || |
2175 | (egid != gid && egid == statbuf.st_gid && statbuf.st_mode & S_ISGID) |
2176 | ) |
2177 | if (!do_undump) |
463ee0b2 |
2178 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c |
2179 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
2180 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ |
2181 | /* not set-id, must be wrapped */ |
a687059c |
2182 | } |
13281fa4 |
2183 | #endif /* DOSUID */ |
79072805 |
2184 | } |
13281fa4 |
2185 | |
79072805 |
2186 | static void |
2187 | find_beginning() |
2188 | { |
6e72f9df |
2189 | register char *s, *s2; |
33b78306 |
2190 | |
2191 | /* skip forward in input to the real script? */ |
2192 | |
bbce6d69 |
2193 | forbid_setid("-x"); |
33b78306 |
2194 | while (doextract) { |
79072805 |
2195 | if ((s = sv_gets(linestr, rsfp, 0)) == Nullch) |
463ee0b2 |
2196 | croak("No Perl script found in input\n"); |
6e72f9df |
2197 | if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) { |
760ac839 |
2198 | PerlIO_ungetc(rsfp, '\n'); /* to keep line count right */ |
33b78306 |
2199 | doextract = FALSE; |
6e72f9df |
2200 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
2201 | s2 = s; |
2202 | while (*s == ' ' || *s == '\t') s++; |
2203 | if (*s++ == '-') { |
2204 | while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--; |
2205 | if (strnEQ(s2-4,"perl",4)) |
2206 | /*SUPPRESS 530*/ |
2207 | while (s = moreswitches(s)) ; |
33b78306 |
2208 | } |
79072805 |
2209 | if (cddir && chdir(cddir) < 0) |
463ee0b2 |
2210 | croak("Can't chdir to %s",cddir); |
83025b21 |
2211 | } |
2212 | } |
2213 | } |
2214 | |
79072805 |
2215 | static void |
748a9306 |
2216 | init_ids() |
352d5a3a |
2217 | { |
748a9306 |
2218 | uid = (int)getuid(); |
2219 | euid = (int)geteuid(); |
2220 | gid = (int)getgid(); |
2221 | egid = (int)getegid(); |
2222 | #ifdef VMS |
2223 | uid |= gid << 16; |
2224 | euid |= egid << 16; |
2225 | #endif |
4633a7c4 |
2226 | tainting |= (uid && (euid != uid || egid != gid)); |
748a9306 |
2227 | } |
79072805 |
2228 | |
748a9306 |
2229 | static void |
bbce6d69 |
2230 | forbid_setid(s) |
2231 | char *s; |
2232 | { |
2233 | if (euid != uid) |
2234 | croak("No %s allowed while running setuid", s); |
2235 | if (egid != gid) |
2236 | croak("No %s allowed while running setgid", s); |
2237 | } |
2238 | |
2239 | static void |
748a9306 |
2240 | init_debugger() |
2241 | { |
79072805 |
2242 | curstash = debstash; |
748a9306 |
2243 | dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); |
79072805 |
2244 | AvREAL_off(dbargs); |
a0d0e21e |
2245 | DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); |
2246 | DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); |
748a9306 |
2247 | DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); |
2248 | DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); |
c07a80fd |
2249 | sv_setiv(DBsingle, 0); |
748a9306 |
2250 | DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); |
c07a80fd |
2251 | sv_setiv(DBtrace, 0); |
748a9306 |
2252 | DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); |
c07a80fd |
2253 | sv_setiv(DBsignal, 0); |
79072805 |
2254 | curstash = defstash; |
352d5a3a |
2255 | } |
2256 | |
79072805 |
2257 | static void |
8990e307 |
2258 | init_stacks() |
79072805 |
2259 | { |
6e72f9df |
2260 | curstack = newAV(); |
5f05dabc |
2261 | mainstack = curstack; /* remember in case we switch stacks */ |
2262 | AvREAL_off(curstack); /* not a real array */ |
6e72f9df |
2263 | av_extend(curstack,127); |
79072805 |
2264 | |
6e72f9df |
2265 | stack_base = AvARRAY(curstack); |
79072805 |
2266 | stack_sp = stack_base; |
8990e307 |
2267 | stack_max = stack_base + 127; |
79072805 |
2268 | |
5f05dabc |
2269 | cxstack_max = 8192 / sizeof(CONTEXT) - 2; /* Use most of 8K. */ |
2270 | New(50,cxstack,cxstack_max + 1,CONTEXT); |
2271 | cxstack_ix = -1; |
2272 | |
2273 | New(50,tmps_stack,128,SV*); |
2274 | tmps_ix = -1; |
2275 | tmps_max = 128; |
2276 | |
2277 | DEBUG( { |
2278 | New(51,debname,128,char); |
2279 | New(52,debdelim,128,char); |
2280 | } ) |
2281 | |
2282 | /* |
2283 | * The following stacks almost certainly should be per-interpreter, |
2284 | * but for now they're not. XXX |
2285 | */ |
2286 | |
6e72f9df |
2287 | if (markstack) { |
2288 | markstack_ptr = markstack; |
2289 | } else { |
2290 | New(54,markstack,64,I32); |
2291 | markstack_ptr = markstack; |
2292 | markstack_max = markstack + 64; |
2293 | } |
79072805 |
2294 | |
6e72f9df |
2295 | if (scopestack) { |
2296 | scopestack_ix = 0; |
2297 | } else { |
2298 | New(54,scopestack,32,I32); |
2299 | scopestack_ix = 0; |
2300 | scopestack_max = 32; |
2301 | } |
79072805 |
2302 | |
6e72f9df |
2303 | if (savestack) { |
2304 | savestack_ix = 0; |
2305 | } else { |
2306 | New(54,savestack,128,ANY); |
2307 | savestack_ix = 0; |
2308 | savestack_max = 128; |
2309 | } |
79072805 |
2310 | |
6e72f9df |
2311 | if (retstack) { |
2312 | retstack_ix = 0; |
2313 | } else { |
2314 | New(54,retstack,16,OP*); |
2315 | retstack_ix = 0; |
2316 | retstack_max = 16; |
5f05dabc |
2317 | } |
378cc40b |
2318 | } |
33b78306 |
2319 | |
6e72f9df |
2320 | static void |
2321 | nuke_stacks() |
2322 | { |
2323 | Safefree(cxstack); |
2324 | Safefree(tmps_stack); |
5f05dabc |
2325 | DEBUG( { |
2326 | Safefree(debname); |
2327 | Safefree(debdelim); |
2328 | } ) |
6e72f9df |
2329 | } |
2330 | |
760ac839 |
2331 | static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
7aa04957 |
2332 | |
79072805 |
2333 | static void |
8990e307 |
2334 | init_lexer() |
2335 | { |
a0d0e21e |
2336 | tmpfp = rsfp; |
90248788 |
2337 | rsfp = Nullfp; |
8990e307 |
2338 | lex_start(linestr); |
2339 | rsfp = tmpfp; |
2340 | subname = newSVpv("main",4); |
2341 | } |
2342 | |
2343 | static void |
79072805 |
2344 | init_predump_symbols() |
45d8adaa |
2345 | { |
93a17b20 |
2346 | GV *tmpgv; |
a0d0e21e |
2347 | GV *othergv; |
79072805 |
2348 | |
85e6fe83 |
2349 | sv_setpvn(GvSV(gv_fetchpv("\"", TRUE, SVt_PV)), " ", 1); |
79072805 |
2350 | |
85e6fe83 |
2351 | stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
a5f75d66 |
2352 | GvMULTI_on(stdingv); |
760ac839 |
2353 | IoIFP(GvIOp(stdingv)) = PerlIO_stdin(); |
adbc6bb1 |
2354 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 |
2355 | GvMULTI_on(tmpgv); |
a0d0e21e |
2356 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(stdingv)); |
79072805 |
2357 | |
85e6fe83 |
2358 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 |
2359 | GvMULTI_on(tmpgv); |
760ac839 |
2360 | IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout(); |
4633a7c4 |
2361 | setdefout(tmpgv); |
adbc6bb1 |
2362 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 |
2363 | GvMULTI_on(tmpgv); |
a0d0e21e |
2364 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(defoutgv)); |
79072805 |
2365 | |
a0d0e21e |
2366 | othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
a5f75d66 |
2367 | GvMULTI_on(othergv); |
760ac839 |
2368 | IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr(); |
adbc6bb1 |
2369 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 |
2370 | GvMULTI_on(tmpgv); |
a0d0e21e |
2371 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv)); |
79072805 |
2372 | |
2373 | statname = NEWSV(66,0); /* last filename we did stat on */ |
ab821d7f |
2374 | |
6e72f9df |
2375 | if (!osname) |
2376 | osname = savepv(OSNAME); |
79072805 |
2377 | } |
33b78306 |
2378 | |
79072805 |
2379 | static void |
2380 | init_postdump_symbols(argc,argv,env) |
2381 | register int argc; |
2382 | register char **argv; |
2383 | register char **env; |
33b78306 |
2384 | { |
79072805 |
2385 | char *s; |
2386 | SV *sv; |
2387 | GV* tmpgv; |
fe14fcc3 |
2388 | |
79072805 |
2389 | argc--,argv++; /* skip name of script */ |
2390 | if (doswitches) { |
2391 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
2392 | if (!argv[0][1]) |
2393 | break; |
2394 | if (argv[0][1] == '-') { |
2395 | argc--,argv++; |
2396 | break; |
2397 | } |
93a17b20 |
2398 | if (s = strchr(argv[0], '=')) { |
79072805 |
2399 | *s++ = '\0'; |
85e6fe83 |
2400 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 |
2401 | } |
2402 | else |
85e6fe83 |
2403 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 |
2404 | } |
79072805 |
2405 | } |
2406 | toptarget = NEWSV(0,0); |
2407 | sv_upgrade(toptarget, SVt_PVFM); |
2408 | sv_setpvn(toptarget, "", 0); |
748a9306 |
2409 | bodytarget = NEWSV(0,0); |
79072805 |
2410 | sv_upgrade(bodytarget, SVt_PVFM); |
2411 | sv_setpvn(bodytarget, "", 0); |
2412 | formtarget = bodytarget; |
2413 | |
bbce6d69 |
2414 | TAINT; |
85e6fe83 |
2415 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
79072805 |
2416 | sv_setpv(GvSV(tmpgv),origfilename); |
2417 | magicname("0", "0", 1); |
2418 | } |
85e6fe83 |
2419 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
79072805 |
2420 | sv_setpv(GvSV(tmpgv),origargv[0]); |
85e6fe83 |
2421 | if (argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { |
a5f75d66 |
2422 | GvMULTI_on(argvgv); |
79072805 |
2423 | (void)gv_AVadd(argvgv); |
2424 | av_clear(GvAVn(argvgv)); |
2425 | for (; argc > 0; argc--,argv++) { |
a0d0e21e |
2426 | av_push(GvAVn(argvgv),newSVpv(argv[0],0)); |
79072805 |
2427 | } |
2428 | } |
85e6fe83 |
2429 | if (envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 |
2430 | HV *hv; |
a5f75d66 |
2431 | GvMULTI_on(envgv); |
79072805 |
2432 | hv = GvHVn(envgv); |
5aabfad6 |
2433 | hv_magic(hv, envgv, 'E'); |
a0d0e21e |
2434 | #ifndef VMS /* VMS doesn't have environ array */ |
4633a7c4 |
2435 | /* Note that if the supplied env parameter is actually a copy |
2436 | of the global environ then it may now point to free'd memory |
2437 | if the environment has been modified since. To avoid this |
2438 | problem we treat env==NULL as meaning 'use the default' |
2439 | */ |
2440 | if (!env) |
2441 | env = environ; |
5aabfad6 |
2442 | if (env != environ) |
79072805 |
2443 | environ[0] = Nullch; |
2444 | for (; *env; env++) { |
93a17b20 |
2445 | if (!(s = strchr(*env,'='))) |
79072805 |
2446 | continue; |
2447 | *s++ = '\0'; |
137443ea |
2448 | #ifdef WIN32 |
2449 | (void)strupr(*env); |
2450 | #endif |
79072805 |
2451 | sv = newSVpv(s--,0); |
2452 | (void)hv_store(hv, *env, s - *env, sv, 0); |
2453 | *s = '='; |
3e3baf6d |
2454 | #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV) |
2455 | /* Sins of the RTL. See note in my_setenv(). */ |
2456 | (void)putenv(savepv(*env)); |
2457 | #endif |
fe14fcc3 |
2458 | } |
4550b24a |
2459 | #endif |
2460 | #ifdef DYNAMIC_ENV_FETCH |
2461 | HvNAME(hv) = savepv(ENV_HV_NAME); |
2462 | #endif |
79072805 |
2463 | } |
bbce6d69 |
2464 | TAINT_NOT; |
85e6fe83 |
2465 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
1e422769 |
2466 | sv_setiv(GvSV(tmpgv), (IV)getpid()); |
33b78306 |
2467 | } |
34de22dd |
2468 | |
79072805 |
2469 | static void |
2470 | init_perllib() |
34de22dd |
2471 | { |
85e6fe83 |
2472 | char *s; |
2473 | if (!tainting) { |
552a7a9b |
2474 | #ifndef VMS |
85e6fe83 |
2475 | s = getenv("PERL5LIB"); |
2476 | if (s) |
774d564b |
2477 | incpush(s, TRUE); |
85e6fe83 |
2478 | else |
774d564b |
2479 | incpush(getenv("PERLLIB"), FALSE); |
552a7a9b |
2480 | #else /* VMS */ |
2481 | /* Treat PERL5?LIB as a possible search list logical name -- the |
2482 | * "natural" VMS idiom for a Unix path string. We allow each |
2483 | * element to be a set of |-separated directories for compatibility. |
2484 | */ |
2485 | char buf[256]; |
2486 | int idx = 0; |
2487 | if (my_trnlnm("PERL5LIB",buf,0)) |
774d564b |
2488 | do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx)); |
552a7a9b |
2489 | else |
774d564b |
2490 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE); |
552a7a9b |
2491 | #endif /* VMS */ |
85e6fe83 |
2492 | } |
34de22dd |
2493 | |
c90c0ff4 |
2494 | /* Use the ~-expanded versions of APPLLIB (undocumented), |
df5cef82 |
2495 | ARCHLIB PRIVLIB SITEARCH SITELIB and OLDARCHLIB |
2496 | */ |
4633a7c4 |
2497 | #ifdef APPLLIB_EXP |
774d564b |
2498 | incpush(APPLLIB_EXP, FALSE); |
16d20bd9 |
2499 | #endif |
4633a7c4 |
2500 | |
fed7345c |
2501 | #ifdef ARCHLIB_EXP |
774d564b |
2502 | incpush(ARCHLIB_EXP, FALSE); |
a0d0e21e |
2503 | #endif |
fed7345c |
2504 | #ifndef PRIVLIB_EXP |
2505 | #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" |
34de22dd |
2506 | #endif |
774d564b |
2507 | incpush(PRIVLIB_EXP, FALSE); |
4633a7c4 |
2508 | |
2509 | #ifdef SITEARCH_EXP |
774d564b |
2510 | incpush(SITEARCH_EXP, FALSE); |
4633a7c4 |
2511 | #endif |
2512 | #ifdef SITELIB_EXP |
774d564b |
2513 | incpush(SITELIB_EXP, FALSE); |
4633a7c4 |
2514 | #endif |
2515 | #ifdef OLDARCHLIB_EXP /* 5.00[01] compatibility */ |
774d564b |
2516 | incpush(OLDARCHLIB_EXP, FALSE); |
4633a7c4 |
2517 | #endif |
a0d0e21e |
2518 | |
4633a7c4 |
2519 | if (!tainting) |
774d564b |
2520 | incpush(".", FALSE); |
2521 | } |
2522 | |
2523 | #if defined(DOSISH) |
2524 | # define PERLLIB_SEP ';' |
2525 | #else |
2526 | # if defined(VMS) |
2527 | # define PERLLIB_SEP '|' |
2528 | # else |
2529 | # define PERLLIB_SEP ':' |
2530 | # endif |
2531 | #endif |
2532 | #ifndef PERLLIB_MANGLE |
2533 | # define PERLLIB_MANGLE(s,n) (s) |
2534 | #endif |
2535 | |
2536 | static void |
2537 | incpush(p, addsubdirs) |
2538 | char *p; |
2539 | int addsubdirs; |
2540 | { |
2541 | SV *subdir = Nullsv; |
2542 | static char *archpat_auto; |
2543 | |
2544 | if (!p) |
2545 | return; |
2546 | |
2547 | if (addsubdirs) { |
2548 | subdir = newSV(0); |
2549 | if (!archpat_auto) { |
2550 | STRLEN len = (sizeof(ARCHNAME) + strlen(patchlevel) |
2551 | + sizeof("//auto")); |
2552 | New(55, archpat_auto, len, char); |
2553 | sprintf(archpat_auto, "/%s/%s/auto", ARCHNAME, patchlevel); |
aa689395 |
2554 | #ifdef VMS |
2555 | for (len = sizeof(ARCHNAME) + 2; |
2556 | archpat_auto[len] != '\0' && archpat_auto[len] != '/'; len++) |
2557 | if (archpat_auto[len] == '.') archpat_auto[len] = '_'; |
2558 | #endif |
774d564b |
2559 | } |
2560 | } |
2561 | |
2562 | /* Break at all separators */ |
2563 | while (p && *p) { |
2564 | SV *libdir = newSV(0); |
2565 | char *s; |
2566 | |
2567 | /* skip any consecutive separators */ |
2568 | while ( *p == PERLLIB_SEP ) { |
2569 | /* Uncomment the next line for PATH semantics */ |
2570 | /* av_push(GvAVn(incgv), newSVpv(".", 1)); */ |
2571 | p++; |
2572 | } |
2573 | |
2574 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { |
2575 | sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)), |
2576 | (STRLEN)(s - p)); |
2577 | p = s + 1; |
2578 | } |
2579 | else { |
2580 | sv_setpv(libdir, PERLLIB_MANGLE(p, 0)); |
2581 | p = Nullch; /* break out */ |
2582 | } |
2583 | |
2584 | /* |
2585 | * BEFORE pushing libdir onto @INC we may first push version- and |
2586 | * archname-specific sub-directories. |
2587 | */ |
2588 | if (addsubdirs) { |
2589 | struct stat tmpstatbuf; |
aa689395 |
2590 | #ifdef VMS |
2591 | char *unix; |
2592 | STRLEN len; |
774d564b |
2593 | |
aa689395 |
2594 | if ((unix = tounixspec_ts(SvPV(libdir,na),Nullch)) != Nullch) { |
2595 | len = strlen(unix); |
2596 | while (unix[len-1] == '/') len--; /* Cosmetic */ |
2597 | sv_usepvn(libdir,unix,len); |
2598 | } |
2599 | else |
2600 | PerlIO_printf(PerlIO_stderr(), |
2601 | "Failed to unixify @INC element \"%s\"\n", |
2602 | SvPV(libdir,na)); |
2603 | #endif |
4fdae800 |
2604 | /* .../archname/version if -d .../archname/version/auto */ |
774d564b |
2605 | sv_setsv(subdir, libdir); |
2606 | sv_catpv(subdir, archpat_auto); |
2607 | if (Stat(SvPVX(subdir), &tmpstatbuf) >= 0 && |
2608 | S_ISDIR(tmpstatbuf.st_mode)) |
2609 | av_push(GvAVn(incgv), |
2610 | newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto")); |
2611 | |
4fdae800 |
2612 | /* .../archname if -d .../archname/auto */ |
774d564b |
2613 | sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME), |
2614 | strlen(patchlevel) + 1, "", 0); |
2615 | if (Stat(SvPVX(subdir), &tmpstatbuf) >= 0 && |
2616 | S_ISDIR(tmpstatbuf.st_mode)) |
2617 | av_push(GvAVn(incgv), |
2618 | newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto")); |
2619 | } |
2620 | |
2621 | /* finally push this lib directory on the end of @INC */ |
2622 | av_push(GvAVn(incgv), libdir); |
2623 | } |
2624 | |
2625 | SvREFCNT_dec(subdir); |
34de22dd |
2626 | } |
93a17b20 |
2627 | |
2628 | void |
68dc0745 |
2629 | call_list(oldscope, list) |
2ae324a7 |
2630 | I32 oldscope; |
93a17b20 |
2631 | AV* list; |
2632 | { |
a0d0e21e |
2633 | line_t oldline = curcop->cop_line; |
22921e25 |
2634 | STRLEN len; |
2635 | dJMPENV; |
2636 | int ret; |
93a17b20 |
2637 | |
8990e307 |
2638 | while (AvFILL(list) >= 0) { |
2639 | CV *cv = (CV*)av_shift(list); |
93a17b20 |
2640 | |
8990e307 |
2641 | SAVEFREESV(cv); |
a0d0e21e |
2642 | |
22921e25 |
2643 | JMPENV_PUSH(ret); |
2644 | switch (ret) { |
748a9306 |
2645 | case 0: { |
4633a7c4 |
2646 | SV* atsv = GvSV(errgv); |
748a9306 |
2647 | PUSHMARK(stack_sp); |
2648 | perl_call_sv((SV*)cv, G_EVAL|G_DISCARD); |
2649 | (void)SvPV(atsv, len); |
2650 | if (len) { |
54310121 |
2651 | JMPENV_POP; |
748a9306 |
2652 | curcop = &compiling; |
2653 | curcop->cop_line = oldline; |
2654 | if (list == beginav) |
2655 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); |
2656 | else |
2657 | sv_catpv(atsv, "END failed--cleanup aborted"); |
2ae324a7 |
2658 | while (scopestack_ix > oldscope) |
2659 | LEAVE; |
748a9306 |
2660 | croak("%s", SvPVX(atsv)); |
2661 | } |
a0d0e21e |
2662 | } |
85e6fe83 |
2663 | break; |
2664 | case 1: |
f86702cc |
2665 | STATUS_ALL_FAILURE; |
85e6fe83 |
2666 | /* FALL THROUGH */ |
2667 | case 2: |
2668 | /* my_exit() was called */ |
2ae324a7 |
2669 | while (scopestack_ix > oldscope) |
2670 | LEAVE; |
84902520 |
2671 | FREETMPS; |
85e6fe83 |
2672 | curstash = defstash; |
2673 | if (endav) |
68dc0745 |
2674 | call_list(oldscope, endav); |
54310121 |
2675 | JMPENV_POP; |
a0d0e21e |
2676 | curcop = &compiling; |
2677 | curcop->cop_line = oldline; |
85e6fe83 |
2678 | if (statusvalue) { |
2679 | if (list == beginav) |
a0d0e21e |
2680 | croak("BEGIN failed--compilation aborted"); |
85e6fe83 |
2681 | else |
a0d0e21e |
2682 | croak("END failed--cleanup aborted"); |
85e6fe83 |
2683 | } |
f86702cc |
2684 | my_exit_jump(); |
85e6fe83 |
2685 | /* NOTREACHED */ |
85e6fe83 |
2686 | case 3: |
2687 | if (!restartop) { |
760ac839 |
2688 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e |
2689 | FREETMPS; |
85e6fe83 |
2690 | break; |
2691 | } |
54310121 |
2692 | JMPENV_POP; |
a0d0e21e |
2693 | curcop = &compiling; |
2694 | curcop->cop_line = oldline; |
54310121 |
2695 | JMPENV_JUMP(3); |
8990e307 |
2696 | } |
54310121 |
2697 | JMPENV_POP; |
93a17b20 |
2698 | } |
93a17b20 |
2699 | } |
2700 | |
f86702cc |
2701 | void |
2702 | my_exit(status) |
2703 | U32 status; |
2704 | { |
2705 | switch (status) { |
2706 | case 0: |
2707 | STATUS_ALL_SUCCESS; |
2708 | break; |
2709 | case 1: |
2710 | STATUS_ALL_FAILURE; |
2711 | break; |
2712 | default: |
2713 | STATUS_NATIVE_SET(status); |
2714 | break; |
2715 | } |
2716 | my_exit_jump(); |
2717 | } |
2718 | |
2719 | void |
2720 | my_failure_exit() |
2721 | { |
2722 | #ifdef VMS |
2723 | if (vaxc$errno & 1) { |
4fdae800 |
2724 | if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */ |
2725 | STATUS_NATIVE_SET(44); |
f86702cc |
2726 | } |
2727 | else { |
ff0cee69 |
2728 | if (!vaxc$errno && errno) /* unlikely */ |
4fdae800 |
2729 | STATUS_NATIVE_SET(44); |
f86702cc |
2730 | else |
4fdae800 |
2731 | STATUS_NATIVE_SET(vaxc$errno); |
f86702cc |
2732 | } |
2733 | #else |
2734 | if (errno & 255) |
2735 | STATUS_POSIX_SET(errno); |
2736 | else if (STATUS_POSIX == 0) |
2737 | STATUS_POSIX_SET(255); |
2738 | #endif |
2739 | my_exit_jump(); |
2740 | } |
2741 | |
2742 | static void |
2743 | my_exit_jump() |
2744 | { |
2745 | register CONTEXT *cx; |
2746 | I32 gimme; |
2747 | SV **newsp; |
2748 | |
2749 | if (e_tmpname) { |
2750 | if (e_fp) { |
2751 | PerlIO_close(e_fp); |
2752 | e_fp = Nullfp; |
2753 | } |
2754 | (void)UNLINK(e_tmpname); |
2755 | Safefree(e_tmpname); |
2756 | e_tmpname = Nullch; |
2757 | } |
2758 | |
2759 | if (cxstack_ix >= 0) { |
2760 | if (cxstack_ix > 0) |
2761 | dounwind(0); |
2762 | POPBLOCK(cx,curpm); |
2763 | LEAVE; |
2764 | } |
ff0cee69 |
2765 | |
54310121 |
2766 | JMPENV_JUMP(2); |
f86702cc |
2767 | } |