Commit | Line | Data |
a0d0e21e |
1 | /* perl.c |
2 | * |
1a30305b |
3 | * Copyright (c) 1987-1996 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 | |
71be2cbc |
23 | dEXTCONST char rcsid[] = "perl.c\nPatch level: ###\n"; |
463ee0b2 |
24 | |
a687059c |
25 | #ifdef IAMSUID |
26 | #ifndef DOSUID |
27 | #define DOSUID |
28 | #endif |
29 | #endif |
378cc40b |
30 | |
a687059c |
31 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
32 | #ifdef DOSUID |
33 | #undef DOSUID |
34 | #endif |
35 | #endif |
8d063cd8 |
36 | |
8ebc5c01 |
37 | #define I_REINIT \ |
38 | STMT_START { \ |
39 | chopset = " \n-"; \ |
40 | copline = NOLINE; \ |
41 | curcop = &compiling; \ |
42 | curcopdb = NULL; \ |
43 | cxstack_ix = -1; \ |
44 | cxstack_max = 128; \ |
45 | dbargs = 0; \ |
46 | dlmax = 128; \ |
47 | laststatval = -1; \ |
48 | laststype = OP_STAT; \ |
49 | maxscream = -1; \ |
50 | maxsysfd = MAXSYSFD; \ |
51 | statname = Nullsv; \ |
52 | tmps_floor = -1; \ |
53 | tmps_ix = -1; \ |
54 | op_mask = NULL; \ |
55 | dlmax = 128; \ |
56 | laststatval = -1; \ |
57 | laststype = OP_STAT; \ |
58 | } STMT_END |
59 | |
a0d0e21e |
60 | static void find_beginning _((void)); |
bbce6d69 |
61 | static void forbid_setid _((char *)); |
774d564b |
62 | static void incpush _((char *, int)); |
748a9306 |
63 | static void init_ids _((void)); |
a0d0e21e |
64 | static void init_debugger _((void)); |
65 | static void init_lexer _((void)); |
66 | static void init_main_stash _((void)); |
67 | static void init_perllib _((void)); |
68 | static void init_postdump_symbols _((int, char **, char **)); |
69 | static void init_predump_symbols _((void)); |
70 | static void init_stacks _((void)); |
6e72f9df |
71 | static void nuke_stacks _((void)); |
a0d0e21e |
72 | static void open_script _((char *, bool, SV *)); |
ab821d7f |
73 | static void usage _((char *)); |
96436eeb |
74 | static void validate_suid _((char *, char*)); |
75 | |
76 | static int fdscript = -1; |
79072805 |
77 | |
93a17b20 |
78 | PerlInterpreter * |
79072805 |
79 | perl_alloc() |
80 | { |
93a17b20 |
81 | PerlInterpreter *sv_interp; |
79072805 |
82 | |
8990e307 |
83 | curinterp = 0; |
93a17b20 |
84 | New(53, sv_interp, 1, PerlInterpreter); |
79072805 |
85 | return sv_interp; |
86 | } |
87 | |
88 | void |
89 | perl_construct( sv_interp ) |
93a17b20 |
90 | register PerlInterpreter *sv_interp; |
79072805 |
91 | { |
92 | if (!(curinterp = sv_interp)) |
93 | return; |
94 | |
8990e307 |
95 | #ifdef MULTIPLICITY |
93a17b20 |
96 | Zero(sv_interp, 1, PerlInterpreter); |
8990e307 |
97 | #endif |
79072805 |
98 | |
99 | /* Init the real globals? */ |
100 | if (!linestr) { |
101 | linestr = NEWSV(65,80); |
ed6116ce |
102 | sv_upgrade(linestr,SVt_PVIV); |
79072805 |
103 | |
6e72f9df |
104 | if (!SvREADONLY(&sv_undef)) { |
105 | SvREADONLY_on(&sv_undef); |
79072805 |
106 | |
6e72f9df |
107 | sv_setpv(&sv_no,No); |
108 | SvNV(&sv_no); |
109 | SvREADONLY_on(&sv_no); |
79072805 |
110 | |
6e72f9df |
111 | sv_setpv(&sv_yes,Yes); |
112 | SvNV(&sv_yes); |
113 | SvREADONLY_on(&sv_yes); |
114 | } |
79072805 |
115 | |
c07a80fd |
116 | nrs = newSVpv("\n", 1); |
117 | rs = SvREFCNT_inc(nrs); |
118 | |
44a8e56a |
119 | pidstatus = newHV(); |
120 | |
79072805 |
121 | #ifdef MSDOS |
122 | /* |
123 | * There is no way we can refer to them from Perl so close them to save |
124 | * space. The other alternative would be to provide STDAUX and STDPRN |
125 | * filehandles. |
126 | */ |
127 | (void)fclose(stdaux); |
128 | (void)fclose(stdprn); |
129 | #endif |
130 | } |
131 | |
8990e307 |
132 | #ifdef MULTIPLICITY |
8ebc5c01 |
133 | I_REINIT; |
134 | perl_destruct_level = 1; |
135 | #else |
136 | if(perl_destruct_level > 0) |
137 | I_REINIT; |
79072805 |
138 | #endif |
139 | |
748a9306 |
140 | init_ids(); |
a5f75d66 |
141 | |
36477c24 |
142 | SET_NUMERIC_STANDARD(); |
a5f75d66 |
143 | #if defined(SUBVERSION) && SUBVERSION > 0 |
e2666263 |
144 | sprintf(patchlevel, "%7.5f", (double) 5 |
145 | + ((double) PATCHLEVEL / (double) 1000) |
146 | + ((double) SUBVERSION / (double) 100000)); |
a5f75d66 |
147 | #else |
e2666263 |
148 | sprintf(patchlevel, "%5.3f", (double) 5 + |
149 | ((double) PATCHLEVEL / (double) 1000)); |
a5f75d66 |
150 | #endif |
79072805 |
151 | |
ab821d7f |
152 | #if defined(LOCAL_PATCH_COUNT) |
6e72f9df |
153 | localpatches = local_patches; /* For possible -v */ |
ab821d7f |
154 | #endif |
155 | |
760ac839 |
156 | PerlIO_init(); /* Hook to IO system */ |
157 | |
79072805 |
158 | fdpid = newAV(); /* for remembering popen pids by fd */ |
8990e307 |
159 | |
160 | init_stacks(); |
161 | ENTER; |
79072805 |
162 | } |
163 | |
164 | void |
748a9306 |
165 | perl_destruct(sv_interp) |
93a17b20 |
166 | register PerlInterpreter *sv_interp; |
79072805 |
167 | { |
748a9306 |
168 | int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
8990e307 |
169 | I32 last_sv_count; |
a0d0e21e |
170 | HV *hv; |
8990e307 |
171 | |
79072805 |
172 | if (!(curinterp = sv_interp)) |
173 | return; |
748a9306 |
174 | |
175 | destruct_level = perl_destruct_level; |
4633a7c4 |
176 | #ifdef DEBUGGING |
177 | { |
178 | char *s; |
5f05dabc |
179 | if (s = getenv("PERL_DESTRUCT_LEVEL")) { |
180 | int i = atoi(s); |
181 | if (destruct_level < i) |
182 | destruct_level = i; |
183 | } |
4633a7c4 |
184 | } |
185 | #endif |
186 | |
5f05dabc |
187 | /* unhook hooks which will soon be, or use, destroyed data */ |
188 | SvREFCNT_dec(warnhook); |
189 | warnhook = Nullsv; |
190 | SvREFCNT_dec(diehook); |
191 | diehook = Nullsv; |
192 | SvREFCNT_dec(parsehook); |
193 | parsehook = Nullsv; |
194 | |
8990e307 |
195 | LEAVE; |
a0d0e21e |
196 | FREETMPS; |
197 | |
6e72f9df |
198 | /* We must account for everything. First the syntax tree. */ |
199 | if (main_root) { |
200 | curpad = AvARRAY(comppad); |
201 | op_free(main_root); |
202 | main_root = 0; |
a0d0e21e |
203 | } |
204 | if (sv_objcount) { |
205 | /* |
206 | * Try to destruct global references. We do this first so that the |
207 | * destructors and destructees still exist. Some sv's might remain. |
208 | * Non-referenced objects are on their own. |
209 | */ |
210 | |
211 | dirty = TRUE; |
212 | sv_clean_objs(); |
8990e307 |
213 | } |
214 | |
a0d0e21e |
215 | if (destruct_level == 0){ |
8990e307 |
216 | |
a0d0e21e |
217 | DEBUG_P(debprofdump()); |
218 | |
219 | /* The exit() function will do everything that needs doing. */ |
220 | return; |
221 | } |
5dd60ef7 |
222 | |
5f05dabc |
223 | /* loosen bonds of global variables */ |
224 | |
8ebc5c01 |
225 | if(rsfp) { |
226 | (void)PerlIO_close(rsfp); |
227 | rsfp = Nullfp; |
228 | } |
229 | |
230 | /* Filters for program text */ |
231 | SvREFCNT_dec(rsfp_filters); |
232 | rsfp_filters = Nullav; |
233 | |
234 | /* switches */ |
235 | preprocess = FALSE; |
236 | minus_n = FALSE; |
237 | minus_p = FALSE; |
238 | minus_l = FALSE; |
239 | minus_a = FALSE; |
240 | minus_F = FALSE; |
241 | doswitches = FALSE; |
242 | dowarn = FALSE; |
243 | doextract = FALSE; |
244 | sawampersand = FALSE; /* must save all match strings */ |
245 | sawstudy = FALSE; /* do fbm_instr on all strings */ |
246 | sawvec = FALSE; |
247 | unsafe = FALSE; |
248 | |
249 | Safefree(inplace); |
250 | inplace = Nullch; |
251 | |
252 | Safefree(e_tmpname); |
253 | e_tmpname = Nullch; |
254 | |
255 | if (e_fp) { |
256 | PerlIO_close(e_fp); |
257 | e_fp = Nullfp; |
258 | } |
259 | |
260 | /* magical thingies */ |
261 | |
262 | Safefree(ofs); /* $, */ |
263 | ofs = Nullch; |
5f05dabc |
264 | |
8ebc5c01 |
265 | Safefree(ors); /* $\ */ |
266 | ors = Nullch; |
267 | |
268 | SvREFCNT_dec(nrs); /* $\ helper */ |
5f05dabc |
269 | nrs = Nullsv; |
270 | |
8ebc5c01 |
271 | multiline = 0; /* $* */ |
5f05dabc |
272 | |
8ebc5c01 |
273 | SvREFCNT_dec(statname); |
5f05dabc |
274 | statname = Nullsv; |
275 | statgv = Nullgv; |
5f05dabc |
276 | |
8ebc5c01 |
277 | /* defgv, aka *_ should be taken care of elsewhere */ |
278 | |
279 | #if 0 /* just about all regexp stuff, seems to be ok */ |
280 | |
281 | /* shortcuts to regexp stuff */ |
282 | leftgv = Nullgv; |
283 | ampergv = Nullgv; |
284 | |
285 | SAVEFREEOP(curpm); |
286 | SAVEFREEOP(oldlastpm); /* for saving regexp context during debugger */ |
287 | |
288 | regprecomp = NULL; /* uncompiled string. */ |
289 | regparse = NULL; /* Input-scan pointer. */ |
290 | regxend = NULL; /* End of input for compile */ |
291 | regnpar = 0; /* () count. */ |
292 | regcode = NULL; /* Code-emit pointer; ®dummy = don't. */ |
293 | regsize = 0; /* Code size. */ |
294 | regnaughty = 0; /* How bad is this pattern? */ |
295 | regsawback = 0; /* Did we see \1, ...? */ |
296 | |
297 | reginput = NULL; /* String-input pointer. */ |
298 | regbol = NULL; /* Beginning of input, for ^ check. */ |
299 | regeol = NULL; /* End of input, for $ check. */ |
300 | regstartp = (char **)NULL; /* Pointer to startp array. */ |
301 | regendp = (char **)NULL; /* Ditto for endp. */ |
302 | reglastparen = 0; /* Similarly for lastparen. */ |
303 | regtill = NULL; /* How far we are required to go. */ |
304 | regflags = 0; /* are we folding, multilining? */ |
305 | regprev = (char)NULL; /* char before regbol, \n if none */ |
306 | |
307 | #endif /* if 0 */ |
308 | |
309 | /* clean up after study() */ |
310 | SvREFCNT_dec(lastscream); |
311 | lastscream = Nullsv; |
312 | Safefree(screamfirst); |
313 | screamfirst = 0; |
314 | Safefree(screamnext); |
315 | screamnext = 0; |
316 | |
317 | /* startup and shutdown function lists */ |
318 | SvREFCNT_dec(beginav); |
319 | SvREFCNT_dec(endav); |
5618dfe8 |
320 | beginav = Nullav; |
5618dfe8 |
321 | endav = Nullav; |
322 | |
8ebc5c01 |
323 | /* temp stack during pp_sort() */ |
324 | SvREFCNT_dec(sortstack); |
325 | sortstack = Nullav; |
326 | |
327 | /* shortcuts just get cleared */ |
328 | envgv = Nullgv; |
329 | siggv = Nullgv; |
330 | incgv = Nullgv; |
331 | errgv = Nullgv; |
332 | argvgv = Nullgv; |
333 | argvoutgv = Nullgv; |
334 | stdingv = Nullgv; |
335 | last_in_gv = Nullgv; |
336 | |
337 | /* reset so print() ends up where we expect */ |
338 | setdefout(Nullgv); |
339 | |
a0d0e21e |
340 | /* Prepare to destruct main symbol table. */ |
5f05dabc |
341 | |
a0d0e21e |
342 | hv = defstash; |
85e6fe83 |
343 | defstash = 0; |
a0d0e21e |
344 | SvREFCNT_dec(hv); |
345 | |
346 | FREETMPS; |
347 | if (destruct_level >= 2) { |
348 | if (scopestack_ix != 0) |
349 | warn("Unbalanced scopes: %d more ENTERs than LEAVEs\n", scopestack_ix); |
350 | if (savestack_ix != 0) |
351 | warn("Unbalanced saves: %d more saves than restores\n", savestack_ix); |
352 | if (tmps_floor != -1) |
353 | warn("Unbalanced tmps: %d more allocs than frees\n", tmps_floor + 1); |
354 | if (cxstack_ix != -1) |
355 | warn("Unbalanced context: %d more PUSHes than POPs\n", cxstack_ix + 1); |
356 | } |
8990e307 |
357 | |
358 | /* Now absolutely destruct everything, somehow or other, loops or no. */ |
8990e307 |
359 | last_sv_count = 0; |
6e72f9df |
360 | SvFLAGS(strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
8990e307 |
361 | while (sv_count != 0 && sv_count != last_sv_count) { |
362 | last_sv_count = sv_count; |
363 | sv_clean_all(); |
364 | } |
6e72f9df |
365 | SvFLAGS(strtab) &= ~SVTYPEMASK; |
366 | SvFLAGS(strtab) |= SVt_PVHV; |
367 | |
368 | /* Destruct the global string table. */ |
369 | { |
370 | /* Yell and reset the HeVAL() slots that are still holding refcounts, |
371 | * so that sv_free() won't fail on them. |
372 | */ |
373 | I32 riter; |
374 | I32 max; |
375 | HE *hent; |
376 | HE **array; |
377 | |
378 | riter = 0; |
379 | max = HvMAX(strtab); |
380 | array = HvARRAY(strtab); |
381 | hent = array[0]; |
382 | for (;;) { |
383 | if (hent) { |
384 | warn("Unbalanced string table refcount: (%d) for \"%s\"", |
385 | HeVAL(hent) - Nullsv, HeKEY(hent)); |
386 | HeVAL(hent) = Nullsv; |
387 | hent = HeNEXT(hent); |
388 | } |
389 | if (!hent) { |
390 | if (++riter > max) |
391 | break; |
392 | hent = array[riter]; |
393 | } |
394 | } |
395 | } |
396 | SvREFCNT_dec(strtab); |
397 | |
8990e307 |
398 | if (sv_count != 0) |
399 | warn("Scalars leaked: %d\n", sv_count); |
6e72f9df |
400 | |
4633a7c4 |
401 | sv_free_arenas(); |
44a8e56a |
402 | |
403 | /* No SVs have survived, need to clean out */ |
404 | linestr = NULL; |
405 | pidstatus = Nullhv; |
6e72f9df |
406 | if (origfilename) |
407 | Safefree(origfilename); |
408 | nuke_stacks(); |
409 | hints = 0; /* Reset hints. Should hints be per-interpreter ? */ |
410 | |
a0d0e21e |
411 | DEBUG_P(debprofdump()); |
79072805 |
412 | } |
413 | |
414 | void |
415 | perl_free(sv_interp) |
93a17b20 |
416 | PerlInterpreter *sv_interp; |
79072805 |
417 | { |
418 | if (!(curinterp = sv_interp)) |
419 | return; |
420 | Safefree(sv_interp); |
421 | } |
ecfc5424 |
422 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) |
a0d0e21e |
423 | char *getenv _((char *)); /* Usually in <stdlib.h> */ |
424 | #endif |
79072805 |
425 | |
426 | int |
a0d0e21e |
427 | perl_parse(sv_interp, xsinit, argc, argv, env) |
93a17b20 |
428 | PerlInterpreter *sv_interp; |
a0d0e21e |
429 | void (*xsinit)_((void)); |
430 | int argc; |
431 | char **argv; |
79072805 |
432 | char **env; |
8d063cd8 |
433 | { |
79072805 |
434 | register SV *sv; |
8d063cd8 |
435 | register char *s; |
1a30305b |
436 | char *scriptname = NULL; |
a0d0e21e |
437 | VOL bool dosearch = FALSE; |
13281fa4 |
438 | char *validarg = ""; |
748a9306 |
439 | AV* comppadlist; |
8d063cd8 |
440 | |
a687059c |
441 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
442 | #ifdef IAMSUID |
443 | #undef IAMSUID |
463ee0b2 |
444 | croak("suidperl is no longer needed since the kernel can now execute\n\ |
a687059c |
445 | setuid perl scripts securely.\n"); |
446 | #endif |
447 | #endif |
448 | |
79072805 |
449 | if (!(curinterp = sv_interp)) |
450 | return 255; |
451 | |
6e72f9df |
452 | #if defined(NeXT) && defined(__DYNAMIC__) |
453 | _dyld_lookup_and_bind |
454 | ("__environ", (unsigned long *) &environ_pointer, NULL); |
455 | #endif /* environ */ |
456 | |
ac58e20f |
457 | origargv = argv; |
458 | origargc = argc; |
a0d0e21e |
459 | #ifndef VMS /* VMS doesn't have environ array */ |
fe14fcc3 |
460 | origenviron = environ; |
a0d0e21e |
461 | #endif |
ab821d7f |
462 | e_tmpname = Nullch; |
a0d0e21e |
463 | |
464 | if (do_undump) { |
465 | |
466 | /* Come here if running an undumped a.out. */ |
467 | |
468 | origfilename = savepv(argv[0]); |
469 | do_undump = FALSE; |
470 | cxstack_ix = -1; /* start label stack again */ |
748a9306 |
471 | init_ids(); |
a0d0e21e |
472 | init_postdump_symbols(argc,argv,env); |
473 | return 0; |
474 | } |
475 | |
476 | if (main_root) |
477 | op_free(main_root); |
478 | main_root = 0; |
79072805 |
479 | |
a5f75d66 |
480 | switch (Sigsetjmp(top_env,1)) { |
79072805 |
481 | case 1: |
748a9306 |
482 | #ifdef VMS |
79072805 |
483 | statusvalue = 255; |
748a9306 |
484 | #else |
485 | statusvalue = 1; |
486 | #endif |
79072805 |
487 | case 2: |
8990e307 |
488 | curstash = defstash; |
489 | if (endav) |
490 | calllist(endav); |
79072805 |
491 | return(statusvalue); /* my_exit() was called */ |
492 | case 3: |
760ac839 |
493 | PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); |
8990e307 |
494 | return 1; |
79072805 |
495 | } |
496 | |
79072805 |
497 | sv_setpvn(linestr,"",0); |
498 | sv = newSVpv("",0); /* first used for -I flags */ |
8990e307 |
499 | SAVEFREESV(sv); |
79072805 |
500 | init_main_stash(); |
33b78306 |
501 | for (argc--,argv++; argc > 0; argc--,argv++) { |
8d063cd8 |
502 | if (argv[0][0] != '-' || !argv[0][1]) |
503 | break; |
13281fa4 |
504 | #ifdef DOSUID |
505 | if (*validarg) |
506 | validarg = " PHOOEY "; |
507 | else |
508 | validarg = argv[0]; |
509 | #endif |
510 | s = argv[0]+1; |
8d063cd8 |
511 | reswitch: |
13281fa4 |
512 | switch (*s) { |
27e2fb84 |
513 | case '0': |
2304df62 |
514 | case 'F': |
378cc40b |
515 | case 'a': |
33b78306 |
516 | case 'c': |
a687059c |
517 | case 'd': |
8d063cd8 |
518 | case 'D': |
4633a7c4 |
519 | case 'h': |
33b78306 |
520 | case 'i': |
fe14fcc3 |
521 | case 'l': |
1a30305b |
522 | case 'M': |
523 | case 'm': |
33b78306 |
524 | case 'n': |
525 | case 'p': |
79072805 |
526 | case 's': |
463ee0b2 |
527 | case 'T': |
33b78306 |
528 | case 'u': |
529 | case 'U': |
530 | case 'v': |
531 | case 'w': |
532 | if (s = moreswitches(s)) |
533 | goto reswitch; |
8d063cd8 |
534 | break; |
33b78306 |
535 | |
8d063cd8 |
536 | case 'e': |
a687059c |
537 | if (euid != uid || egid != gid) |
463ee0b2 |
538 | croak("No -e allowed in setuid scripts"); |
8d063cd8 |
539 | if (!e_fp) { |
a0d0e21e |
540 | e_tmpname = savepv(TMPPATH); |
a687059c |
541 | (void)mktemp(e_tmpname); |
83025b21 |
542 | if (!*e_tmpname) |
463ee0b2 |
543 | croak("Can't mktemp()"); |
760ac839 |
544 | e_fp = PerlIO_open(e_tmpname,"w"); |
33b78306 |
545 | if (!e_fp) |
463ee0b2 |
546 | croak("Cannot open temporary file"); |
8d063cd8 |
547 | } |
552a7a9b |
548 | if (*++s) |
549 | PerlIO_puts(e_fp,s); |
550 | else if (argv[1]) { |
760ac839 |
551 | PerlIO_puts(e_fp,argv[1]); |
33b78306 |
552 | argc--,argv++; |
553 | } |
552a7a9b |
554 | else |
555 | croak("No code specified for -e"); |
760ac839 |
556 | (void)PerlIO_putc(e_fp,'\n'); |
8d063cd8 |
557 | break; |
558 | case 'I': |
bbce6d69 |
559 | forbid_setid("-I"); |
79072805 |
560 | sv_catpv(sv,"-"); |
561 | sv_catpv(sv,s); |
562 | sv_catpv(sv," "); |
a687059c |
563 | if (*++s) { |
774d564b |
564 | incpush(s, TRUE); |
378cc40b |
565 | } |
33b78306 |
566 | else if (argv[1]) { |
774d564b |
567 | incpush(argv[1], TRUE); |
79072805 |
568 | sv_catpv(sv,argv[1]); |
8d063cd8 |
569 | argc--,argv++; |
79072805 |
570 | sv_catpv(sv," "); |
8d063cd8 |
571 | } |
572 | break; |
8d063cd8 |
573 | case 'P': |
bbce6d69 |
574 | forbid_setid("-P"); |
8d063cd8 |
575 | preprocess = TRUE; |
13281fa4 |
576 | s++; |
8d063cd8 |
577 | goto reswitch; |
378cc40b |
578 | case 'S': |
bbce6d69 |
579 | forbid_setid("-S"); |
378cc40b |
580 | dosearch = TRUE; |
13281fa4 |
581 | s++; |
378cc40b |
582 | goto reswitch; |
1a30305b |
583 | case 'V': |
584 | if (!preambleav) |
585 | preambleav = newAV(); |
586 | av_push(preambleav, newSVpv("use Config qw(myconfig config_vars)",0)); |
587 | if (*++s != ':') { |
6e72f9df |
588 | Sv = newSVpv("print myconfig();",0); |
589 | #ifdef VMS |
590 | sv_catpv(Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\","); |
591 | #else |
592 | sv_catpv(Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\","); |
593 | #endif |
594 | #if defined(DEBUGGING) || defined(NOEMBED) || defined(MULTIPLICITY) |
595 | strcpy(buf,"\" Compile-time options:"); |
596 | # ifdef DEBUGGING |
597 | strcat(buf," DEBUGGING"); |
598 | # endif |
599 | # ifdef NOEMBED |
600 | strcat(buf," NOEMBED"); |
601 | # endif |
602 | # ifdef MULTIPLICITY |
603 | strcat(buf," MULTIPLICITY"); |
604 | # endif |
605 | strcat(buf,"\\n\","); |
606 | sv_catpv(Sv,buf); |
607 | #endif |
608 | #if defined(LOCAL_PATCH_COUNT) |
609 | if (LOCAL_PATCH_COUNT > 0) |
610 | { int i; |
611 | sv_catpv(Sv,"print \" Locally applied patches:\\n\","); |
612 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { |
613 | if (localpatches[i]) { |
614 | sprintf(buf,"\" \\t%s\\n\",",localpatches[i]); |
615 | sv_catpv(Sv,buf); |
616 | } |
617 | } |
618 | } |
619 | #endif |
620 | sprintf(buf,"\" Built under %s\\n\",",OSNAME); |
621 | sv_catpv(Sv,buf); |
622 | #ifdef __DATE__ |
623 | # ifdef __TIME__ |
624 | sprintf(buf,"\" Compiled at %s %s\\n\"",__DATE__,__TIME__); |
625 | # else |
626 | sprintf(buf,"\" Compiled on %s\\n\"",__DATE__); |
627 | # endif |
628 | sv_catpv(Sv,buf); |
629 | #endif |
630 | sv_catpv(Sv,"; $\"=\"\\n \"; print \" \\@INC:\\n @INC\\n\""); |
1a30305b |
631 | } |
632 | else { |
633 | Sv = newSVpv("config_vars(qw(",0); |
634 | sv_catpv(Sv, ++s); |
635 | sv_catpv(Sv, "))"); |
636 | s += strlen(s); |
637 | } |
638 | av_push(preambleav, Sv); |
c07a80fd |
639 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
1a30305b |
640 | goto reswitch; |
33b78306 |
641 | case 'x': |
642 | doextract = TRUE; |
13281fa4 |
643 | s++; |
33b78306 |
644 | if (*s) |
a0d0e21e |
645 | cddir = savepv(s); |
33b78306 |
646 | break; |
8d063cd8 |
647 | case '-': |
648 | argc--,argv++; |
649 | goto switch_end; |
650 | case 0: |
651 | break; |
652 | default: |
463ee0b2 |
653 | croak("Unrecognized switch: -%s",s); |
8d063cd8 |
654 | } |
655 | } |
656 | switch_end: |
1a30305b |
657 | if (!scriptname) |
658 | scriptname = argv[0]; |
8d063cd8 |
659 | if (e_fp) { |
760ac839 |
660 | if (PerlIO_flush(e_fp) || PerlIO_error(e_fp) || PerlIO_close(e_fp)) |
2304df62 |
661 | croak("Can't write to temp file for -e: %s", Strerror(errno)); |
ab821d7f |
662 | e_fp = Nullfp; |
8d063cd8 |
663 | argc++,argv--; |
45d8adaa |
664 | scriptname = e_tmpname; |
8d063cd8 |
665 | } |
79072805 |
666 | else if (scriptname == Nullch) { |
667 | #ifdef MSDOS |
760ac839 |
668 | if ( isatty(PerlIO_fileno(PerlIO_stdin())) ) |
55497cff |
669 | moreswitches("h"); |
fe14fcc3 |
670 | #endif |
79072805 |
671 | scriptname = "-"; |
672 | } |
fe14fcc3 |
673 | |
79072805 |
674 | init_perllib(); |
8d063cd8 |
675 | |
79072805 |
676 | open_script(scriptname,dosearch,sv); |
8d063cd8 |
677 | |
96436eeb |
678 | validate_suid(validarg, scriptname); |
378cc40b |
679 | |
79072805 |
680 | if (doextract) |
681 | find_beginning(); |
682 | |
748a9306 |
683 | compcv = (CV*)NEWSV(1104,0); |
684 | sv_upgrade((SV *)compcv, SVt_PVCV); |
07055b4c |
685 | CvUNIQUE_on(compcv); |
748a9306 |
686 | |
6e72f9df |
687 | comppad = newAV(); |
79072805 |
688 | av_push(comppad, Nullsv); |
689 | curpad = AvARRAY(comppad); |
6e72f9df |
690 | comppad_name = newAV(); |
8990e307 |
691 | comppad_name_fill = 0; |
692 | min_intro_pending = 0; |
79072805 |
693 | padix = 0; |
694 | |
748a9306 |
695 | comppadlist = newAV(); |
696 | AvREAL_off(comppadlist); |
8e07c86e |
697 | av_store(comppadlist, 0, (SV*)comppad_name); |
698 | av_store(comppadlist, 1, (SV*)comppad); |
748a9306 |
699 | CvPADLIST(compcv) = comppadlist; |
700 | |
6e72f9df |
701 | boot_core_UNIVERSAL(); |
a0d0e21e |
702 | if (xsinit) |
703 | (*xsinit)(); /* in case linked C routines want magical variables */ |
748a9306 |
704 | #ifdef VMS |
705 | init_os_extras(); |
706 | #endif |
93a17b20 |
707 | |
93a17b20 |
708 | init_predump_symbols(); |
8990e307 |
709 | if (!do_undump) |
710 | init_postdump_symbols(argc,argv,env); |
93a17b20 |
711 | |
79072805 |
712 | init_lexer(); |
713 | |
714 | /* now parse the script */ |
715 | |
716 | error_count = 0; |
717 | if (yyparse() || error_count) { |
718 | if (minus_c) |
463ee0b2 |
719 | croak("%s had compilation errors.\n", origfilename); |
79072805 |
720 | else { |
463ee0b2 |
721 | croak("Execution of %s aborted due to compilation errors.\n", |
79072805 |
722 | origfilename); |
378cc40b |
723 | } |
79072805 |
724 | } |
725 | curcop->cop_line = 0; |
726 | curstash = defstash; |
727 | preprocess = FALSE; |
ab821d7f |
728 | if (e_tmpname) { |
79072805 |
729 | (void)UNLINK(e_tmpname); |
ab821d7f |
730 | Safefree(e_tmpname); |
731 | e_tmpname = Nullch; |
378cc40b |
732 | } |
a687059c |
733 | |
93a17b20 |
734 | /* now that script is parsed, we can modify record separator */ |
c07a80fd |
735 | SvREFCNT_dec(rs); |
736 | rs = SvREFCNT_inc(nrs); |
737 | sv_setsv(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), rs); |
45d8adaa |
738 | |
79072805 |
739 | if (do_undump) |
740 | my_unexec(); |
741 | |
8990e307 |
742 | if (dowarn) |
743 | gv_check(defstash); |
744 | |
a0d0e21e |
745 | LEAVE; |
746 | FREETMPS; |
c07a80fd |
747 | |
748 | #ifdef DEBUGGING_MSTATS |
749 | if ((s=getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) |
750 | dump_mstats("after compilation:"); |
751 | #endif |
752 | |
a0d0e21e |
753 | ENTER; |
754 | restartop = 0; |
79072805 |
755 | return 0; |
756 | } |
757 | |
758 | int |
759 | perl_run(sv_interp) |
93a17b20 |
760 | PerlInterpreter *sv_interp; |
79072805 |
761 | { |
762 | if (!(curinterp = sv_interp)) |
763 | return 255; |
a5f75d66 |
764 | switch (Sigsetjmp(top_env,1)) { |
79072805 |
765 | case 1: |
766 | cxstack_ix = -1; /* start context stack again */ |
767 | break; |
768 | case 2: |
769 | curstash = defstash; |
93a17b20 |
770 | if (endav) |
771 | calllist(endav); |
a0d0e21e |
772 | FREETMPS; |
c07a80fd |
773 | #ifdef DEBUGGING_MSTATS |
774 | if (getenv("PERL_DEBUG_MSTATS")) |
775 | dump_mstats("after execution: "); |
776 | #endif |
93a17b20 |
777 | return(statusvalue); /* my_exit() was called */ |
79072805 |
778 | case 3: |
779 | if (!restartop) { |
760ac839 |
780 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e |
781 | FREETMPS; |
8990e307 |
782 | return 1; |
83025b21 |
783 | } |
6e72f9df |
784 | if (curstack != mainstack) { |
79072805 |
785 | dSP; |
6e72f9df |
786 | SWITCHSTACK(curstack, mainstack); |
79072805 |
787 | } |
788 | break; |
8d063cd8 |
789 | } |
79072805 |
790 | |
760ac839 |
791 | DEBUG_r(PerlIO_printf(PerlIO_stderr(), "%s $` $& $' support.\n", |
6e72f9df |
792 | sawampersand ? "Enabling" : "Omitting")); |
793 | |
79072805 |
794 | if (!restartop) { |
795 | DEBUG_x(dump_all()); |
760ac839 |
796 | DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); |
79072805 |
797 | |
798 | if (minus_c) { |
760ac839 |
799 | PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", origfilename); |
79072805 |
800 | my_exit(0); |
801 | } |
a0d0e21e |
802 | if (perldb && DBsingle) |
803 | sv_setiv(DBsingle, 1); |
45d8adaa |
804 | } |
79072805 |
805 | |
806 | /* do it */ |
807 | |
808 | if (restartop) { |
809 | op = restartop; |
810 | restartop = 0; |
ab821d7f |
811 | runops(); |
79072805 |
812 | } |
813 | else if (main_start) { |
814 | op = main_start; |
ab821d7f |
815 | runops(); |
79072805 |
816 | } |
79072805 |
817 | |
818 | my_exit(0); |
a0d0e21e |
819 | return 0; |
79072805 |
820 | } |
821 | |
822 | void |
823 | my_exit(status) |
748a9306 |
824 | U32 status; |
79072805 |
825 | { |
a0d0e21e |
826 | register CONTEXT *cx; |
827 | I32 gimme; |
828 | SV **newsp; |
829 | |
748a9306 |
830 | statusvalue = FIXSTATUS(status); |
a0d0e21e |
831 | if (cxstack_ix >= 0) { |
832 | if (cxstack_ix > 0) |
833 | dounwind(0); |
834 | POPBLOCK(cx,curpm); |
835 | LEAVE; |
836 | } |
a5f75d66 |
837 | Siglongjmp(top_env, 2); |
79072805 |
838 | } |
839 | |
a0d0e21e |
840 | SV* |
841 | perl_get_sv(name, create) |
842 | char* name; |
843 | I32 create; |
844 | { |
845 | GV* gv = gv_fetchpv(name, create, SVt_PV); |
846 | if (gv) |
847 | return GvSV(gv); |
848 | return Nullsv; |
849 | } |
850 | |
851 | AV* |
852 | perl_get_av(name, create) |
853 | char* name; |
854 | I32 create; |
855 | { |
856 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); |
857 | if (create) |
858 | return GvAVn(gv); |
859 | if (gv) |
860 | return GvAV(gv); |
861 | return Nullav; |
862 | } |
863 | |
864 | HV* |
865 | perl_get_hv(name, create) |
866 | char* name; |
867 | I32 create; |
868 | { |
869 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); |
870 | if (create) |
871 | return GvHVn(gv); |
872 | if (gv) |
873 | return GvHV(gv); |
874 | return Nullhv; |
875 | } |
876 | |
877 | CV* |
878 | perl_get_cv(name, create) |
879 | char* name; |
880 | I32 create; |
881 | { |
882 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); |
8ebc5c01 |
883 | if (create && !GvCVu(gv)) |
774d564b |
884 | return newSUB(start_subparse(FALSE, 0), |
a0d0e21e |
885 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
4633a7c4 |
886 | Nullop, |
a0d0e21e |
887 | Nullop); |
888 | if (gv) |
8ebc5c01 |
889 | return GvCVu(gv); |
a0d0e21e |
890 | return Nullcv; |
891 | } |
892 | |
79072805 |
893 | /* Be sure to refetch the stack pointer after calling these routines. */ |
894 | |
a0d0e21e |
895 | I32 |
896 | perl_call_argv(subname, flags, argv) |
8990e307 |
897 | char *subname; |
a0d0e21e |
898 | I32 flags; /* See G_* flags in cop.h */ |
899 | register char **argv; /* null terminated arg list */ |
8990e307 |
900 | { |
a0d0e21e |
901 | dSP; |
8990e307 |
902 | |
a0d0e21e |
903 | PUSHMARK(sp); |
904 | if (argv) { |
8990e307 |
905 | while (*argv) { |
a0d0e21e |
906 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 |
907 | argv++; |
908 | } |
a0d0e21e |
909 | PUTBACK; |
8990e307 |
910 | } |
a0d0e21e |
911 | return perl_call_pv(subname, flags); |
8990e307 |
912 | } |
913 | |
a0d0e21e |
914 | I32 |
915 | perl_call_pv(subname, flags) |
916 | char *subname; /* name of the subroutine */ |
917 | I32 flags; /* See G_* flags in cop.h */ |
918 | { |
919 | return perl_call_sv((SV*)perl_get_cv(subname, TRUE), flags); |
920 | } |
921 | |
922 | I32 |
923 | perl_call_method(methname, flags) |
924 | char *methname; /* name of the subroutine */ |
925 | I32 flags; /* See G_* flags in cop.h */ |
926 | { |
927 | dSP; |
928 | OP myop; |
929 | if (!op) |
930 | op = &myop; |
931 | XPUSHs(sv_2mortal(newSVpv(methname,0))); |
932 | PUTBACK; |
933 | pp_method(); |
934 | return perl_call_sv(*stack_sp--, flags); |
935 | } |
936 | |
937 | /* May be called with any of a CV, a GV, or an SV containing the name. */ |
938 | I32 |
939 | perl_call_sv(sv, flags) |
940 | SV* sv; |
941 | I32 flags; /* See G_* flags in cop.h */ |
942 | { |
943 | LOGOP myop; /* fake syntax tree node */ |
944 | SV** sp = stack_sp; |
945 | I32 oldmark = TOPMARK; |
946 | I32 retval; |
a5f75d66 |
947 | Sigjmp_buf oldtop; |
a0d0e21e |
948 | I32 oldscope; |
6e72f9df |
949 | static CV *DBcv; |
a0d0e21e |
950 | |
951 | if (flags & G_DISCARD) { |
952 | ENTER; |
953 | SAVETMPS; |
954 | } |
955 | |
956 | SAVESPTR(op); |
957 | op = (OP*)&myop; |
958 | Zero(op, 1, LOGOP); |
959 | EXTEND(stack_sp, 1); |
960 | *++stack_sp = sv; |
961 | oldscope = scopestack_ix; |
962 | |
963 | if (!(flags & G_NOARGS)) |
964 | myop.op_flags = OPf_STACKED; |
965 | myop.op_next = Nullop; |
966 | myop.op_flags |= OPf_KNOW; |
967 | if (flags & G_ARRAY) |
968 | myop.op_flags |= OPf_LIST; |
969 | |
36477c24 |
970 | if (perldb && curstash != debstash |
971 | /* Handle first BEGIN of -d. */ |
972 | && (DBcv || (DBcv = GvCV(DBsub))) |
973 | /* Try harder, since this may have been a sighandler, thus |
974 | * curstash may be meaningless. */ |
975 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != debstash)) |
6e72f9df |
976 | op->op_private |= OPpENTERSUB_DB; |
977 | |
a0d0e21e |
978 | if (flags & G_EVAL) { |
a5f75d66 |
979 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
a0d0e21e |
980 | |
981 | cLOGOP->op_other = op; |
982 | markstack_ptr--; |
4633a7c4 |
983 | /* we're trying to emulate pp_entertry() here */ |
984 | { |
985 | register CONTEXT *cx; |
986 | I32 gimme = GIMME; |
987 | |
988 | ENTER; |
989 | SAVETMPS; |
990 | |
991 | push_return(op->op_next); |
992 | PUSHBLOCK(cx, CXt_EVAL, stack_sp); |
993 | PUSHEVAL(cx, 0, 0); |
994 | eval_root = op; /* Only needed so that goto works right. */ |
995 | |
996 | in_eval = 1; |
997 | if (flags & G_KEEPERR) |
998 | in_eval |= 4; |
999 | else |
1000 | sv_setpv(GvSV(errgv),""); |
1001 | } |
a0d0e21e |
1002 | markstack_ptr++; |
1003 | |
1004 | restart: |
a5f75d66 |
1005 | switch (Sigsetjmp(top_env,1)) { |
a0d0e21e |
1006 | case 0: |
1007 | break; |
1008 | case 1: |
748a9306 |
1009 | #ifdef VMS |
a0d0e21e |
1010 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 |
1011 | #else |
1012 | statusvalue = 1; |
1013 | #endif |
a0d0e21e |
1014 | /* FALL THROUGH */ |
1015 | case 2: |
1016 | /* my_exit() was called */ |
1017 | curstash = defstash; |
1018 | FREETMPS; |
a5f75d66 |
1019 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e |
1020 | if (statusvalue) |
1021 | croak("Callback called exit"); |
1022 | my_exit(statusvalue); |
1023 | /* NOTREACHED */ |
1024 | case 3: |
1025 | if (restartop) { |
1026 | op = restartop; |
1027 | restartop = 0; |
1028 | goto restart; |
1029 | } |
1030 | stack_sp = stack_base + oldmark; |
1031 | if (flags & G_ARRAY) |
1032 | retval = 0; |
1033 | else { |
1034 | retval = 1; |
1035 | *++stack_sp = &sv_undef; |
1036 | } |
1037 | goto cleanup; |
1038 | } |
1039 | } |
1040 | |
1041 | if (op == (OP*)&myop) |
1042 | op = pp_entersub(); |
1043 | if (op) |
ab821d7f |
1044 | runops(); |
a0d0e21e |
1045 | retval = stack_sp - (stack_base + oldmark); |
4633a7c4 |
1046 | if ((flags & G_EVAL) && !(flags & G_KEEPERR)) |
1047 | sv_setpv(GvSV(errgv),""); |
a0d0e21e |
1048 | |
1049 | cleanup: |
1050 | if (flags & G_EVAL) { |
1051 | if (scopestack_ix > oldscope) { |
a0a2876f |
1052 | SV **newsp; |
1053 | PMOP *newpm; |
1054 | I32 gimme; |
1055 | register CONTEXT *cx; |
1056 | I32 optype; |
1057 | |
1058 | POPBLOCK(cx,newpm); |
1059 | POPEVAL(cx); |
1060 | pop_return(); |
1061 | curpm = newpm; |
1062 | LEAVE; |
a0d0e21e |
1063 | } |
a5f75d66 |
1064 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e |
1065 | } |
1066 | if (flags & G_DISCARD) { |
1067 | stack_sp = stack_base + oldmark; |
1068 | retval = 0; |
1069 | FREETMPS; |
1070 | LEAVE; |
1071 | } |
1072 | return retval; |
1073 | } |
1074 | |
6e72f9df |
1075 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 |
1076 | |
a0d0e21e |
1077 | I32 |
4633a7c4 |
1078 | perl_eval_sv(sv, flags) |
8990e307 |
1079 | SV* sv; |
4633a7c4 |
1080 | I32 flags; /* See G_* flags in cop.h */ |
a0d0e21e |
1081 | { |
1082 | UNOP myop; /* fake syntax tree node */ |
4633a7c4 |
1083 | SV** sp = stack_sp; |
1084 | I32 oldmark = sp - stack_base; |
1085 | I32 retval; |
a5f75d66 |
1086 | Sigjmp_buf oldtop; |
4633a7c4 |
1087 | I32 oldscope; |
79072805 |
1088 | |
4633a7c4 |
1089 | if (flags & G_DISCARD) { |
1090 | ENTER; |
1091 | SAVETMPS; |
1092 | } |
1093 | |
79072805 |
1094 | SAVESPTR(op); |
79072805 |
1095 | op = (OP*)&myop; |
a0d0e21e |
1096 | Zero(op, 1, UNOP); |
4633a7c4 |
1097 | EXTEND(stack_sp, 1); |
1098 | *++stack_sp = sv; |
1099 | oldscope = scopestack_ix; |
79072805 |
1100 | |
4633a7c4 |
1101 | if (!(flags & G_NOARGS)) |
1102 | myop.op_flags = OPf_STACKED; |
79072805 |
1103 | myop.op_next = Nullop; |
6e72f9df |
1104 | myop.op_type = OP_ENTEREVAL; |
4633a7c4 |
1105 | myop.op_flags |= OPf_KNOW; |
6e72f9df |
1106 | if (flags & G_KEEPERR) |
1107 | myop.op_flags |= OPf_SPECIAL; |
4633a7c4 |
1108 | if (flags & G_ARRAY) |
6e72f9df |
1109 | myop.op_flags |= OPf_LIST; |
79072805 |
1110 | |
a5f75d66 |
1111 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
4633a7c4 |
1112 | |
1113 | restart: |
a5f75d66 |
1114 | switch (Sigsetjmp(top_env,1)) { |
4633a7c4 |
1115 | case 0: |
1116 | break; |
1117 | case 1: |
1118 | #ifdef VMS |
1119 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
1120 | #else |
1121 | statusvalue = 1; |
1122 | #endif |
1123 | /* FALL THROUGH */ |
1124 | case 2: |
1125 | /* my_exit() was called */ |
1126 | curstash = defstash; |
1127 | FREETMPS; |
a5f75d66 |
1128 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
4633a7c4 |
1129 | if (statusvalue) |
1130 | croak("Callback called exit"); |
1131 | my_exit(statusvalue); |
1132 | /* NOTREACHED */ |
1133 | case 3: |
1134 | if (restartop) { |
1135 | op = restartop; |
1136 | restartop = 0; |
1137 | goto restart; |
1138 | } |
1139 | stack_sp = stack_base + oldmark; |
1140 | if (flags & G_ARRAY) |
1141 | retval = 0; |
1142 | else { |
1143 | retval = 1; |
1144 | *++stack_sp = &sv_undef; |
1145 | } |
1146 | goto cleanup; |
1147 | } |
1148 | |
1149 | if (op == (OP*)&myop) |
1150 | op = pp_entereval(); |
1151 | if (op) |
ab821d7f |
1152 | runops(); |
4633a7c4 |
1153 | retval = stack_sp - (stack_base + oldmark); |
6e72f9df |
1154 | if (!(flags & G_KEEPERR)) |
4633a7c4 |
1155 | sv_setpv(GvSV(errgv),""); |
1156 | |
1157 | cleanup: |
a5f75d66 |
1158 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
4633a7c4 |
1159 | if (flags & G_DISCARD) { |
1160 | stack_sp = stack_base + oldmark; |
1161 | retval = 0; |
1162 | FREETMPS; |
1163 | LEAVE; |
1164 | } |
1165 | return retval; |
1166 | } |
1167 | |
1168 | /* Require a module. */ |
1169 | |
1170 | void |
1171 | perl_require_pv(pv) |
1172 | char* pv; |
1173 | { |
1174 | SV* sv = sv_newmortal(); |
1175 | sv_setpv(sv, "require '"); |
1176 | sv_catpv(sv, pv); |
1177 | sv_catpv(sv, "'"); |
1178 | perl_eval_sv(sv, G_DISCARD); |
79072805 |
1179 | } |
1180 | |
79072805 |
1181 | void |
79072805 |
1182 | magicname(sym,name,namlen) |
1183 | char *sym; |
1184 | char *name; |
1185 | I32 namlen; |
1186 | { |
1187 | register GV *gv; |
1188 | |
85e6fe83 |
1189 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 |
1190 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
1191 | } |
1192 | |
ab821d7f |
1193 | static void |
1a30305b |
1194 | usage(name) /* XXX move this out into a module ? */ |
4633a7c4 |
1195 | char *name; |
1196 | { |
ab821d7f |
1197 | /* This message really ought to be max 23 lines. |
1198 | * Removed -h because the user already knows that opton. Others? */ |
1199 | printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name); |
4633a7c4 |
1200 | printf("\n -0[octal] specify record separator (\\0, if no argument)"); |
ab821d7f |
1201 | printf("\n -a autosplit mode with -n or -p (splits $_ into @F)"); |
4633a7c4 |
1202 | printf("\n -c check syntax only (runs BEGIN and END blocks)"); |
1a30305b |
1203 | printf("\n -d[:debugger] run scripts under debugger"); |
4633a7c4 |
1204 | printf("\n -D[number/list] set debugging flags (argument is a bit mask or flags)"); |
ab821d7f |
1205 | printf("\n -e 'command' one line of script. Several -e's allowed. Omit [programfile]."); |
1206 | printf("\n -F/pattern/ split() pattern for autosplit (-a). The //'s are optional."); |
4633a7c4 |
1207 | printf("\n -i[extension] edit <> files in place (make backup if extension supplied)"); |
ab821d7f |
1208 | printf("\n -Idirectory specify @INC/#include directory (may be used more then once)"); |
4633a7c4 |
1209 | printf("\n -l[octal] enable line ending processing, specifies line teminator"); |
ab821d7f |
1210 | printf("\n -[mM][-]module.. executes `use/no module...' before executing your script."); |
4633a7c4 |
1211 | printf("\n -n assume 'while (<>) { ... }' loop arround your script"); |
1212 | printf("\n -p assume loop like -n but print line also like sed"); |
1213 | printf("\n -P run script through C preprocessor before compilation"); |
4633a7c4 |
1214 | printf("\n -s enable some switch parsing for switches after script name"); |
1215 | printf("\n -S look for the script using PATH environment variable"); |
1216 | printf("\n -T turn on tainting checks"); |
1217 | printf("\n -u dump core after parsing script"); |
1218 | printf("\n -U allow unsafe operations"); |
1219 | printf("\n -v print version number and patchlevel of perl"); |
1a30305b |
1220 | printf("\n -V[:variable] print perl configuration information"); |
ab821d7f |
1221 | printf("\n -w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT."); |
4633a7c4 |
1222 | printf("\n -x[directory] strip off text before #!perl line and perhaps cd to directory\n"); |
1223 | } |
1224 | |
79072805 |
1225 | /* This routine handles any switches that can be given during run */ |
1226 | |
1227 | char * |
1228 | moreswitches(s) |
1229 | char *s; |
1230 | { |
1231 | I32 numlen; |
c07a80fd |
1232 | U32 rschar; |
79072805 |
1233 | |
1234 | switch (*s) { |
1235 | case '0': |
c07a80fd |
1236 | rschar = scan_oct(s, 4, &numlen); |
1237 | SvREFCNT_dec(nrs); |
1238 | if (rschar & ~((U8)~0)) |
1239 | nrs = &sv_undef; |
1240 | else if (!rschar && numlen >= 2) |
1241 | nrs = newSVpv("", 0); |
1242 | else { |
1243 | char ch = rschar; |
1244 | nrs = newSVpv(&ch, 1); |
79072805 |
1245 | } |
1246 | return s + numlen; |
2304df62 |
1247 | case 'F': |
1248 | minus_F = TRUE; |
a0d0e21e |
1249 | splitstr = savepv(s + 1); |
2304df62 |
1250 | s += strlen(s); |
1251 | return s; |
79072805 |
1252 | case 'a': |
1253 | minus_a = TRUE; |
1254 | s++; |
1255 | return s; |
1256 | case 'c': |
1257 | minus_c = TRUE; |
1258 | s++; |
1259 | return s; |
1260 | case 'd': |
bbce6d69 |
1261 | forbid_setid("-d"); |
4633a7c4 |
1262 | s++; |
c07a80fd |
1263 | if (*s == ':' || *s == '=') { |
4633a7c4 |
1264 | sprintf(buf, "use Devel::%s;", ++s); |
1265 | s += strlen(s); |
1266 | my_setenv("PERL5DB",buf); |
1267 | } |
a0d0e21e |
1268 | if (!perldb) { |
1269 | perldb = TRUE; |
1270 | init_debugger(); |
1271 | } |
79072805 |
1272 | return s; |
1273 | case 'D': |
1274 | #ifdef DEBUGGING |
bbce6d69 |
1275 | forbid_setid("-D"); |
79072805 |
1276 | if (isALPHA(s[1])) { |
8990e307 |
1277 | static char debopts[] = "psltocPmfrxuLHXD"; |
79072805 |
1278 | char *d; |
1279 | |
93a17b20 |
1280 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
79072805 |
1281 | debug |= 1 << (d - debopts); |
1282 | } |
1283 | else { |
1284 | debug = atoi(s+1); |
1285 | for (s++; isDIGIT(*s); s++) ; |
1286 | } |
8990e307 |
1287 | debug |= 0x80000000; |
79072805 |
1288 | #else |
1289 | warn("Recompile perl with -DDEBUGGING to use -D switch\n"); |
a0d0e21e |
1290 | for (s++; isALNUM(*s); s++) ; |
79072805 |
1291 | #endif |
1292 | /*SUPPRESS 530*/ |
1293 | return s; |
4633a7c4 |
1294 | case 'h': |
1295 | usage(origargv[0]); |
1296 | exit(0); |
79072805 |
1297 | case 'i': |
1298 | if (inplace) |
1299 | Safefree(inplace); |
a0d0e21e |
1300 | inplace = savepv(s+1); |
79072805 |
1301 | /*SUPPRESS 530*/ |
1302 | for (s = inplace; *s && !isSPACE(*s); s++) ; |
1303 | *s = '\0'; |
1304 | break; |
1305 | case 'I': |
bbce6d69 |
1306 | forbid_setid("-I"); |
79072805 |
1307 | if (*++s) { |
774d564b |
1308 | char *e, *p; |
748a9306 |
1309 | for (e = s; *e && !isSPACE(*e); e++) ; |
774d564b |
1310 | p = savepvn(s, e-s); |
1311 | incpush(p, TRUE); |
1312 | Safefree(p); |
748a9306 |
1313 | if (*e) |
1314 | return e; |
79072805 |
1315 | } |
1316 | else |
463ee0b2 |
1317 | croak("No space allowed after -I"); |
79072805 |
1318 | break; |
1319 | case 'l': |
1320 | minus_l = TRUE; |
1321 | s++; |
a0d0e21e |
1322 | if (ors) |
1323 | Safefree(ors); |
79072805 |
1324 | if (isDIGIT(*s)) { |
a0d0e21e |
1325 | ors = savepv("\n"); |
79072805 |
1326 | orslen = 1; |
1327 | *ors = scan_oct(s, 3 + (*s == '0'), &numlen); |
1328 | s += numlen; |
1329 | } |
1330 | else { |
c07a80fd |
1331 | if (RsPARA(nrs)) { |
6e72f9df |
1332 | ors = "\n\n"; |
c07a80fd |
1333 | orslen = 2; |
1334 | } |
1335 | else |
1336 | ors = SvPV(nrs, orslen); |
6e72f9df |
1337 | ors = savepvn(ors, orslen); |
79072805 |
1338 | } |
1339 | return s; |
1a30305b |
1340 | case 'M': |
bbce6d69 |
1341 | forbid_setid("-M"); /* XXX ? */ |
1a30305b |
1342 | /* FALL THROUGH */ |
1343 | case 'm': |
bbce6d69 |
1344 | forbid_setid("-m"); /* XXX ? */ |
1a30305b |
1345 | if (*++s) { |
a5f75d66 |
1346 | char *start; |
1347 | char *use = "use "; |
1348 | /* -M-foo == 'no foo' */ |
1349 | if (*s == '-') { use = "no "; ++s; } |
1350 | Sv = newSVpv(use,0); |
1351 | start = s; |
1a30305b |
1352 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd |
1353 | while(isALNUM(*s) || *s==':') ++s; |
1354 | if (*s != '=') { |
1355 | sv_catpv(Sv, start); |
1356 | if (*(start-1) == 'm') { |
1357 | if (*s != '\0') |
1358 | croak("Can't use '%c' after -mname", *s); |
1359 | sv_catpv( Sv, " ()"); |
1360 | } |
1361 | } else { |
1362 | sv_catpvn(Sv, start, s-start); |
a5f75d66 |
1363 | sv_catpv(Sv, " split(/,/,q{"); |
c07a80fd |
1364 | sv_catpv(Sv, ++s); |
a5f75d66 |
1365 | sv_catpv(Sv, "})"); |
c07a80fd |
1366 | } |
1a30305b |
1367 | s += strlen(s); |
c07a80fd |
1368 | if (preambleav == NULL) |
1369 | preambleav = newAV(); |
1370 | av_push(preambleav, Sv); |
1a30305b |
1371 | } |
1372 | else |
1373 | croak("No space allowed after -%c", *(s-1)); |
1374 | return s; |
79072805 |
1375 | case 'n': |
1376 | minus_n = TRUE; |
1377 | s++; |
1378 | return s; |
1379 | case 'p': |
1380 | minus_p = TRUE; |
1381 | s++; |
1382 | return s; |
1383 | case 's': |
bbce6d69 |
1384 | forbid_setid("-s"); |
79072805 |
1385 | doswitches = TRUE; |
1386 | s++; |
1387 | return s; |
463ee0b2 |
1388 | case 'T': |
1389 | tainting = TRUE; |
1390 | s++; |
1391 | return s; |
79072805 |
1392 | case 'u': |
1393 | do_undump = TRUE; |
1394 | s++; |
1395 | return s; |
1396 | case 'U': |
1397 | unsafe = TRUE; |
1398 | s++; |
1399 | return s; |
1400 | case 'v': |
a5f75d66 |
1401 | #if defined(SUBVERSION) && SUBVERSION > 0 |
1402 | printf("\nThis is perl, version 5.%03d_%02d", PATCHLEVEL, SUBVERSION); |
1403 | #else |
1404 | printf("\nThis is perl, version %s",patchlevel); |
1405 | #endif |
1a30305b |
1406 | |
44a8e56a |
1407 | printf("\n\nCopyright 1987-1997, Larry Wall\n"); |
79072805 |
1408 | #ifdef MSDOS |
55497cff |
1409 | printf("\n\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); |
1410 | #endif |
1411 | #ifdef DJGPP |
1412 | printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n"); |
4633a7c4 |
1413 | #endif |
79072805 |
1414 | #ifdef OS2 |
5dd60ef7 |
1415 | printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" |
760ac839 |
1416 | "Version 5 port Copyright (c) 1994-1996, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 |
1417 | #endif |
79072805 |
1418 | #ifdef atarist |
760ac839 |
1419 | printf("atariST series port, ++jrb bammi@cadence.com\n"); |
79072805 |
1420 | #endif |
760ac839 |
1421 | printf("\n\ |
79072805 |
1422 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
760ac839 |
1423 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n"); |
79072805 |
1424 | exit(0); |
1425 | case 'w': |
1426 | dowarn = TRUE; |
1427 | s++; |
1428 | return s; |
a0d0e21e |
1429 | case '*': |
79072805 |
1430 | case ' ': |
1431 | if (s[1] == '-') /* Additional switches on #! line. */ |
1432 | return s+2; |
1433 | break; |
a0d0e21e |
1434 | case '-': |
79072805 |
1435 | case 0: |
1436 | case '\n': |
1437 | case '\t': |
1438 | break; |
a0d0e21e |
1439 | case 'P': |
1440 | if (preprocess) |
1441 | return s+1; |
1442 | /* FALL THROUGH */ |
79072805 |
1443 | default: |
a0d0e21e |
1444 | croak("Can't emulate -%.1s on #! line",s); |
79072805 |
1445 | } |
1446 | return Nullch; |
1447 | } |
1448 | |
1449 | /* compliments of Tom Christiansen */ |
1450 | |
1451 | /* unexec() can be found in the Gnu emacs distribution */ |
1452 | |
1453 | void |
1454 | my_unexec() |
1455 | { |
1456 | #ifdef UNEXEC |
1457 | int status; |
1458 | extern int etext; |
1459 | |
1460 | sprintf (buf, "%s.perldump", origfilename); |
1461 | sprintf (tokenbuf, "%s/perl", BIN); |
1462 | |
1463 | status = unexec(buf, tokenbuf, &etext, sbrk(0), 0); |
1464 | if (status) |
760ac839 |
1465 | PerlIO_printf(PerlIO_stderr(), "unexec of %s into %s failed!\n", tokenbuf, buf); |
a0d0e21e |
1466 | exit(status); |
79072805 |
1467 | #else |
a5f75d66 |
1468 | # ifdef VMS |
1469 | # include <lib$routines.h> |
1470 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ |
1471 | #else |
79072805 |
1472 | ABORT(); /* for use with undump */ |
1473 | #endif |
a5f75d66 |
1474 | #endif |
79072805 |
1475 | } |
1476 | |
1477 | static void |
1478 | init_main_stash() |
1479 | { |
463ee0b2 |
1480 | GV *gv; |
6e72f9df |
1481 | |
1482 | /* Note that strtab is a rather special HV. Assumptions are made |
1483 | about not iterating on it, and not adding tie magic to it. |
1484 | It is properly deallocated in perl_destruct() */ |
1485 | strtab = newHV(); |
1486 | HvSHAREKEYS_off(strtab); /* mandatory */ |
1487 | Newz(506,((XPVHV*)SvANY(strtab))->xhv_array, |
1488 | sizeof(HE*) * (((XPVHV*)SvANY(strtab))->xhv_max + 1), char); |
1489 | |
463ee0b2 |
1490 | curstash = defstash = newHV(); |
79072805 |
1491 | curstname = newSVpv("main",4); |
adbc6bb1 |
1492 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
1493 | SvREFCNT_dec(GvHV(gv)); |
1494 | GvHV(gv) = (HV*)SvREFCNT_inc(defstash); |
463ee0b2 |
1495 | SvREADONLY_on(gv); |
a0d0e21e |
1496 | HvNAME(defstash) = savepv("main"); |
85e6fe83 |
1497 | incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); |
a5f75d66 |
1498 | GvMULTI_on(incgv); |
a0d0e21e |
1499 | defgv = gv_fetchpv("_",TRUE, SVt_PVAV); |
4633a7c4 |
1500 | errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); |
a5f75d66 |
1501 | GvMULTI_on(errgv); |
552a7a9b |
1502 | sv_setpvn(GvSV(errgv), "", 0); |
8990e307 |
1503 | curstash = defstash; |
1504 | compiling.cop_stash = defstash; |
adbc6bb1 |
1505 | debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); |
4633a7c4 |
1506 | /* We must init $/ before switches are processed. */ |
1507 | sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1); |
79072805 |
1508 | } |
1509 | |
a0d0e21e |
1510 | #ifdef CAN_PROTOTYPE |
1511 | static void |
1512 | open_script(char *scriptname, bool dosearch, SV *sv) |
1513 | #else |
79072805 |
1514 | static void |
1515 | open_script(scriptname,dosearch,sv) |
1516 | char *scriptname; |
1517 | bool dosearch; |
1518 | SV *sv; |
a0d0e21e |
1519 | #endif |
79072805 |
1520 | { |
1521 | char *xfound = Nullch; |
1522 | char *xfailed = Nullch; |
1523 | register char *s; |
1524 | I32 len; |
a38d6535 |
1525 | int retval; |
1526 | #if defined(DOSISH) && !defined(OS2) && !defined(atarist) |
1527 | #define SEARCH_EXTS ".bat", ".cmd", NULL |
1528 | #endif |
ab821d7f |
1529 | #ifdef VMS |
1530 | # define SEARCH_EXTS ".pl", ".com", NULL |
1531 | #endif |
a38d6535 |
1532 | /* additional extensions to try in each dir if scriptname not found */ |
1533 | #ifdef SEARCH_EXTS |
1534 | char *ext[] = { SEARCH_EXTS }; |
1535 | int extidx = (strchr(scriptname,'.')) ? -1 : 0; /* has ext already */ |
1536 | #endif |
79072805 |
1537 | |
c07a80fd |
1538 | #ifdef VMS |
6e72f9df |
1539 | if (dosearch) { |
1540 | int hasdir, idx = 0, deftypes = 1; |
1541 | |
1542 | hasdir = (strpbrk(scriptname,":[</") != Nullch) ; |
1543 | /* The first time through, just add SEARCH_EXTS to whatever we |
1544 | * already have, so we can check for default file types. */ |
1545 | while (deftypes || (!hasdir && my_trnlnm("DCL$PATH",tokenbuf,idx++)) ) { |
1546 | if (deftypes) { deftypes = 0; *tokenbuf = '\0'; } |
c07a80fd |
1547 | strcat(tokenbuf,scriptname); |
1548 | #else /* !VMS */ |
93a17b20 |
1549 | if (dosearch && !strchr(scriptname, '/') && (s = getenv("PATH"))) { |
79072805 |
1550 | |
1551 | bufend = s + strlen(s); |
1552 | while (*s) { |
1553 | #ifndef DOSISH |
1554 | s = cpytill(tokenbuf,s,bufend,':',&len); |
1555 | #else |
1556 | #ifdef atarist |
1557 | for (len = 0; *s && *s != ',' && *s != ';'; tokenbuf[len++] = *s++); |
1558 | tokenbuf[len] = '\0'; |
1559 | #else |
1560 | for (len = 0; *s && *s != ';'; tokenbuf[len++] = *s++); |
1561 | tokenbuf[len] = '\0'; |
1562 | #endif |
1563 | #endif |
1564 | if (*s) |
1565 | s++; |
1566 | #ifndef DOSISH |
1567 | if (len && tokenbuf[len-1] != '/') |
1568 | #else |
1569 | #ifdef atarist |
1570 | if (len && ((tokenbuf[len-1] != '\\') && (tokenbuf[len-1] != '/'))) |
1571 | #else |
1572 | if (len && tokenbuf[len-1] != '\\') |
1573 | #endif |
1574 | #endif |
1575 | (void)strcat(tokenbuf+len,"/"); |
1576 | (void)strcat(tokenbuf+len,scriptname); |
c07a80fd |
1577 | #endif /* !VMS */ |
a38d6535 |
1578 | |
1579 | #ifdef SEARCH_EXTS |
1580 | len = strlen(tokenbuf); |
1581 | if (extidx > 0) /* reset after previous loop */ |
1582 | extidx = 0; |
1583 | do { |
1584 | #endif |
760ac839 |
1585 | DEBUG_p(PerlIO_printf(Perl_debug_log, "Looking for %s\n",tokenbuf)); |
a38d6535 |
1586 | retval = Stat(tokenbuf,&statbuf); |
1587 | #ifdef SEARCH_EXTS |
1588 | } while ( retval < 0 /* not there */ |
1589 | && extidx>=0 && ext[extidx] /* try an extension? */ |
1590 | && strcpy(tokenbuf+len, ext[extidx++]) |
1591 | ); |
1592 | #endif |
1593 | if (retval < 0) |
79072805 |
1594 | continue; |
1595 | if (S_ISREG(statbuf.st_mode) |
1596 | && cando(S_IRUSR,TRUE,&statbuf) && cando(S_IXUSR,TRUE,&statbuf)) { |
1597 | xfound = tokenbuf; /* bingo! */ |
1598 | break; |
1599 | } |
1600 | if (!xfailed) |
a0d0e21e |
1601 | xfailed = savepv(tokenbuf); |
79072805 |
1602 | } |
1603 | if (!xfound) |
463ee0b2 |
1604 | croak("Can't execute %s", xfailed ? xfailed : scriptname ); |
79072805 |
1605 | if (xfailed) |
1606 | Safefree(xfailed); |
1607 | scriptname = xfound; |
1608 | } |
1609 | |
96436eeb |
1610 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { |
1611 | char *s = scriptname + 8; |
1612 | fdscript = atoi(s); |
1613 | while (isDIGIT(*s)) |
1614 | s++; |
1615 | if (*s) |
1616 | scriptname = s + 1; |
1617 | } |
1618 | else |
1619 | fdscript = -1; |
ab821d7f |
1620 | origfilename = savepv(e_tmpname ? "-e" : scriptname); |
79072805 |
1621 | curcop->cop_filegv = gv_fetchfile(origfilename); |
1622 | if (strEQ(origfilename,"-")) |
1623 | scriptname = ""; |
96436eeb |
1624 | if (fdscript >= 0) { |
760ac839 |
1625 | rsfp = PerlIO_fdopen(fdscript,"r"); |
96436eeb |
1626 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
7aa04957 |
1627 | if (rsfp) |
1628 | fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ |
96436eeb |
1629 | #endif |
1630 | } |
1631 | else if (preprocess) { |
79072805 |
1632 | char *cpp = CPPSTDIN; |
1633 | |
1634 | if (strEQ(cpp,"cppstdin")) |
1635 | sprintf(tokenbuf, "%s/%s", SCRIPTDIR, cpp); |
1636 | else |
1637 | sprintf(tokenbuf, "%s", cpp); |
1638 | sv_catpv(sv,"-I"); |
fed7345c |
1639 | sv_catpv(sv,PRIVLIB_EXP); |
79072805 |
1640 | #ifdef MSDOS |
1641 | (void)sprintf(buf, "\ |
1642 | sed %s -e \"/^[^#]/b\" \ |
1643 | -e \"/^#[ ]*include[ ]/b\" \ |
1644 | -e \"/^#[ ]*define[ ]/b\" \ |
1645 | -e \"/^#[ ]*if[ ]/b\" \ |
1646 | -e \"/^#[ ]*ifdef[ ]/b\" \ |
1647 | -e \"/^#[ ]*ifndef[ ]/b\" \ |
1648 | -e \"/^#[ ]*else/b\" \ |
1649 | -e \"/^#[ ]*elif[ ]/b\" \ |
1650 | -e \"/^#[ ]*undef[ ]/b\" \ |
1651 | -e \"/^#[ ]*endif/b\" \ |
1652 | -e \"s/^#.*//\" \ |
1653 | %s | %s -C %s %s", |
1654 | (doextract ? "-e \"1,/^#/d\n\"" : ""), |
1655 | #else |
1656 | (void)sprintf(buf, "\ |
1657 | %s %s -e '/^[^#]/b' \ |
1658 | -e '/^#[ ]*include[ ]/b' \ |
1659 | -e '/^#[ ]*define[ ]/b' \ |
1660 | -e '/^#[ ]*if[ ]/b' \ |
1661 | -e '/^#[ ]*ifdef[ ]/b' \ |
1662 | -e '/^#[ ]*ifndef[ ]/b' \ |
1663 | -e '/^#[ ]*else/b' \ |
1664 | -e '/^#[ ]*elif[ ]/b' \ |
1665 | -e '/^#[ ]*undef[ ]/b' \ |
1666 | -e '/^#[ ]*endif/b' \ |
1667 | -e 's/^[ ]*#.*//' \ |
1668 | %s | %s -C %s %s", |
1669 | #ifdef LOC_SED |
1670 | LOC_SED, |
1671 | #else |
1672 | "sed", |
1673 | #endif |
1674 | (doextract ? "-e '1,/^#/d\n'" : ""), |
1675 | #endif |
463ee0b2 |
1676 | scriptname, tokenbuf, SvPV(sv, na), CPPMINUS); |
79072805 |
1677 | doextract = FALSE; |
1678 | #ifdef IAMSUID /* actually, this is caught earlier */ |
1679 | if (euid != uid && !euid) { /* if running suidperl */ |
1680 | #ifdef HAS_SETEUID |
1681 | (void)seteuid(uid); /* musn't stay setuid root */ |
1682 | #else |
1683 | #ifdef HAS_SETREUID |
85e6fe83 |
1684 | (void)setreuid((Uid_t)-1, uid); |
1685 | #else |
1686 | #ifdef HAS_SETRESUID |
1687 | (void)setresuid((Uid_t)-1, uid, (Uid_t)-1); |
79072805 |
1688 | #else |
1689 | setuid(uid); |
1690 | #endif |
1691 | #endif |
85e6fe83 |
1692 | #endif |
79072805 |
1693 | if (geteuid() != uid) |
463ee0b2 |
1694 | croak("Can't do seteuid!\n"); |
79072805 |
1695 | } |
1696 | #endif /* IAMSUID */ |
1697 | rsfp = my_popen(buf,"r"); |
1698 | } |
1699 | else if (!*scriptname) { |
bbce6d69 |
1700 | forbid_setid("program input from stdin"); |
760ac839 |
1701 | rsfp = PerlIO_stdin(); |
79072805 |
1702 | } |
96436eeb |
1703 | else { |
760ac839 |
1704 | rsfp = PerlIO_open(scriptname,"r"); |
96436eeb |
1705 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
7aa04957 |
1706 | if (rsfp) |
1707 | fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ |
96436eeb |
1708 | #endif |
1709 | } |
5dd60ef7 |
1710 | if (e_tmpname) { |
1711 | e_fp = rsfp; |
1712 | } |
7aa04957 |
1713 | if (!rsfp) { |
13281fa4 |
1714 | #ifdef DOSUID |
a687059c |
1715 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
a0d0e21e |
1716 | if (euid && Stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 && |
13281fa4 |
1717 | statbuf.st_mode & (S_ISUID|S_ISGID)) { |
27e2fb84 |
1718 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c |
1719 | execv(buf, origargv); /* try again */ |
463ee0b2 |
1720 | croak("Can't do setuid\n"); |
13281fa4 |
1721 | } |
1722 | #endif |
1723 | #endif |
463ee0b2 |
1724 | croak("Can't open perl script \"%s\": %s\n", |
2304df62 |
1725 | SvPVX(GvSV(curcop->cop_filegv)), Strerror(errno)); |
13281fa4 |
1726 | } |
79072805 |
1727 | } |
8d063cd8 |
1728 | |
79072805 |
1729 | static void |
96436eeb |
1730 | validate_suid(validarg, scriptname) |
79072805 |
1731 | char *validarg; |
96436eeb |
1732 | char *scriptname; |
79072805 |
1733 | { |
96436eeb |
1734 | int which; |
1735 | |
13281fa4 |
1736 | /* do we need to emulate setuid on scripts? */ |
1737 | |
1738 | /* This code is for those BSD systems that have setuid #! scripts disabled |
1739 | * in the kernel because of a security problem. Merely defining DOSUID |
1740 | * in perl will not fix that problem, but if you have disabled setuid |
1741 | * scripts in the kernel, this will attempt to emulate setuid and setgid |
1742 | * on scripts that have those now-otherwise-useless bits set. The setuid |
27e2fb84 |
1743 | * root version must be called suidperl or sperlN.NNN. If regular perl |
1744 | * discovers that it has opened a setuid script, it calls suidperl with |
1745 | * the same argv that it had. If suidperl finds that the script it has |
1746 | * just opened is NOT setuid root, it sets the effective uid back to the |
1747 | * uid. We don't just make perl setuid root because that loses the |
1748 | * effective uid we had before invoking perl, if it was different from the |
1749 | * uid. |
13281fa4 |
1750 | * |
1751 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must |
1752 | * be defined in suidperl only. suidperl must be setuid root. The |
1753 | * Configure script will set this up for you if you want it. |
1754 | */ |
a687059c |
1755 | |
13281fa4 |
1756 | #ifdef DOSUID |
6e72f9df |
1757 | char *s, *s2; |
a0d0e21e |
1758 | |
760ac839 |
1759 | if (Fstat(PerlIO_fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */ |
463ee0b2 |
1760 | croak("Can't stat script \"%s\"",origfilename); |
96436eeb |
1761 | if (fdscript < 0 && statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 |
1762 | I32 len; |
13281fa4 |
1763 | |
a687059c |
1764 | #ifdef IAMSUID |
fe14fcc3 |
1765 | #ifndef HAS_SETREUID |
a687059c |
1766 | /* On this access check to make sure the directories are readable, |
1767 | * there is actually a small window that the user could use to make |
1768 | * filename point to an accessible directory. So there is a faint |
1769 | * chance that someone could execute a setuid script down in a |
1770 | * non-accessible directory. I don't know what to do about that. |
1771 | * But I don't think it's too important. The manual lies when |
1772 | * it says access() is useful in setuid programs. |
1773 | */ |
463ee0b2 |
1774 | if (access(SvPVX(GvSV(curcop->cop_filegv)),1)) /*double check*/ |
1775 | croak("Permission denied"); |
a687059c |
1776 | #else |
1777 | /* If we can swap euid and uid, then we can determine access rights |
1778 | * with a simple stat of the file, and then compare device and |
1779 | * inode to make sure we did stat() on the same file we opened. |
1780 | * Then we just have to make sure he or she can execute it. |
1781 | */ |
1782 | { |
1783 | struct stat tmpstatbuf; |
1784 | |
85e6fe83 |
1785 | if ( |
1786 | #ifdef HAS_SETREUID |
1787 | setreuid(euid,uid) < 0 |
a0d0e21e |
1788 | #else |
1789 | # if HAS_SETRESUID |
85e6fe83 |
1790 | setresuid(euid,uid,(Uid_t)-1) < 0 |
a0d0e21e |
1791 | # endif |
85e6fe83 |
1792 | #endif |
1793 | || getuid() != euid || geteuid() != uid) |
463ee0b2 |
1794 | croak("Can't swap uid and euid"); /* really paranoid */ |
a0d0e21e |
1795 | if (Stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0) |
463ee0b2 |
1796 | croak("Permission denied"); /* testing full pathname here */ |
a687059c |
1797 | if (tmpstatbuf.st_dev != statbuf.st_dev || |
1798 | tmpstatbuf.st_ino != statbuf.st_ino) { |
760ac839 |
1799 | (void)PerlIO_close(rsfp); |
79072805 |
1800 | if (rsfp = my_popen("/bin/mail root","w")) { /* heh, heh */ |
760ac839 |
1801 | PerlIO_printf(rsfp, |
a687059c |
1802 | "User %d tried to run dev %d ino %d in place of dev %d ino %d!\n\ |
1803 | (Filename of set-id script was %s, uid %d gid %d.)\n\nSincerely,\nperl\n", |
1804 | uid,tmpstatbuf.st_dev, tmpstatbuf.st_ino, |
1805 | statbuf.st_dev, statbuf.st_ino, |
463ee0b2 |
1806 | SvPVX(GvSV(curcop->cop_filegv)), |
20188a90 |
1807 | statbuf.st_uid, statbuf.st_gid); |
79072805 |
1808 | (void)my_pclose(rsfp); |
a687059c |
1809 | } |
463ee0b2 |
1810 | croak("Permission denied\n"); |
a687059c |
1811 | } |
85e6fe83 |
1812 | if ( |
1813 | #ifdef HAS_SETREUID |
1814 | setreuid(uid,euid) < 0 |
a0d0e21e |
1815 | #else |
1816 | # if defined(HAS_SETRESUID) |
85e6fe83 |
1817 | setresuid(uid,euid,(Uid_t)-1) < 0 |
a0d0e21e |
1818 | # endif |
85e6fe83 |
1819 | #endif |
1820 | || getuid() != uid || geteuid() != euid) |
463ee0b2 |
1821 | croak("Can't reswap uid and euid"); |
27e2fb84 |
1822 | if (!cando(S_IXUSR,FALSE,&statbuf)) /* can real uid exec? */ |
463ee0b2 |
1823 | croak("Permission denied\n"); |
a687059c |
1824 | } |
fe14fcc3 |
1825 | #endif /* HAS_SETREUID */ |
a687059c |
1826 | #endif /* IAMSUID */ |
1827 | |
27e2fb84 |
1828 | if (!S_ISREG(statbuf.st_mode)) |
463ee0b2 |
1829 | croak("Permission denied"); |
27e2fb84 |
1830 | if (statbuf.st_mode & S_IWOTH) |
463ee0b2 |
1831 | croak("Setuid/gid script is writable by world"); |
13281fa4 |
1832 | doswitches = FALSE; /* -s is insecure in suid */ |
79072805 |
1833 | curcop->cop_line++; |
760ac839 |
1834 | if (sv_gets(linestr, rsfp, 0) == Nullch || |
1835 | strnNE(SvPV(linestr,na),"#!",2) ) /* required even on Sys V */ |
463ee0b2 |
1836 | croak("No #! line"); |
760ac839 |
1837 | s = SvPV(linestr,na)+2; |
663a0e37 |
1838 | if (*s == ' ') s++; |
45d8adaa |
1839 | while (!isSPACE(*s)) s++; |
760ac839 |
1840 | for (s2 = s; (s2 > SvPV(linestr,na)+2 && |
6e72f9df |
1841 | (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ; |
1842 | if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ |
463ee0b2 |
1843 | croak("Not a perl script"); |
a687059c |
1844 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 |
1845 | /* |
1846 | * #! arg must be what we saw above. They can invoke it by |
1847 | * mentioning suidperl explicitly, but they may not add any strange |
1848 | * arguments beyond what #! says if they do invoke suidperl that way. |
1849 | */ |
1850 | len = strlen(validarg); |
1851 | if (strEQ(validarg," PHOOEY ") || |
45d8adaa |
1852 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
463ee0b2 |
1853 | croak("Args must match #! line"); |
a687059c |
1854 | |
1855 | #ifndef IAMSUID |
1856 | if (euid != uid && (statbuf.st_mode & S_ISUID) && |
1857 | euid == statbuf.st_uid) |
1858 | if (!do_undump) |
463ee0b2 |
1859 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c |
1860 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1861 | #endif /* IAMSUID */ |
13281fa4 |
1862 | |
1863 | if (euid) { /* oops, we're not the setuid root perl */ |
760ac839 |
1864 | (void)PerlIO_close(rsfp); |
13281fa4 |
1865 | #ifndef IAMSUID |
27e2fb84 |
1866 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c |
1867 | execv(buf, origargv); /* try again */ |
13281fa4 |
1868 | #endif |
463ee0b2 |
1869 | croak("Can't do setuid\n"); |
13281fa4 |
1870 | } |
1871 | |
83025b21 |
1872 | if (statbuf.st_mode & S_ISGID && statbuf.st_gid != egid) { |
fe14fcc3 |
1873 | #ifdef HAS_SETEGID |
a687059c |
1874 | (void)setegid(statbuf.st_gid); |
1875 | #else |
fe14fcc3 |
1876 | #ifdef HAS_SETREGID |
85e6fe83 |
1877 | (void)setregid((Gid_t)-1,statbuf.st_gid); |
1878 | #else |
1879 | #ifdef HAS_SETRESGID |
1880 | (void)setresgid((Gid_t)-1,statbuf.st_gid,(Gid_t)-1); |
a687059c |
1881 | #else |
1882 | setgid(statbuf.st_gid); |
1883 | #endif |
1884 | #endif |
85e6fe83 |
1885 | #endif |
83025b21 |
1886 | if (getegid() != statbuf.st_gid) |
463ee0b2 |
1887 | croak("Can't do setegid!\n"); |
83025b21 |
1888 | } |
a687059c |
1889 | if (statbuf.st_mode & S_ISUID) { |
1890 | if (statbuf.st_uid != euid) |
fe14fcc3 |
1891 | #ifdef HAS_SETEUID |
a687059c |
1892 | (void)seteuid(statbuf.st_uid); /* all that for this */ |
1893 | #else |
fe14fcc3 |
1894 | #ifdef HAS_SETREUID |
85e6fe83 |
1895 | (void)setreuid((Uid_t)-1,statbuf.st_uid); |
1896 | #else |
1897 | #ifdef HAS_SETRESUID |
1898 | (void)setresuid((Uid_t)-1,statbuf.st_uid,(Uid_t)-1); |
a687059c |
1899 | #else |
1900 | setuid(statbuf.st_uid); |
1901 | #endif |
1902 | #endif |
85e6fe83 |
1903 | #endif |
83025b21 |
1904 | if (geteuid() != statbuf.st_uid) |
463ee0b2 |
1905 | croak("Can't do seteuid!\n"); |
a687059c |
1906 | } |
83025b21 |
1907 | else if (uid) { /* oops, mustn't run as root */ |
fe14fcc3 |
1908 | #ifdef HAS_SETEUID |
85e6fe83 |
1909 | (void)seteuid((Uid_t)uid); |
a687059c |
1910 | #else |
fe14fcc3 |
1911 | #ifdef HAS_SETREUID |
85e6fe83 |
1912 | (void)setreuid((Uid_t)-1,(Uid_t)uid); |
a687059c |
1913 | #else |
85e6fe83 |
1914 | #ifdef HAS_SETRESUID |
1915 | (void)setresuid((Uid_t)-1,(Uid_t)uid,(Uid_t)-1); |
1916 | #else |
1917 | setuid((Uid_t)uid); |
1918 | #endif |
a687059c |
1919 | #endif |
1920 | #endif |
83025b21 |
1921 | if (geteuid() != uid) |
463ee0b2 |
1922 | croak("Can't do seteuid!\n"); |
83025b21 |
1923 | } |
748a9306 |
1924 | init_ids(); |
27e2fb84 |
1925 | if (!cando(S_IXUSR,TRUE,&statbuf)) |
463ee0b2 |
1926 | croak("Permission denied\n"); /* they can't do this */ |
13281fa4 |
1927 | } |
1928 | #ifdef IAMSUID |
1929 | else if (preprocess) |
463ee0b2 |
1930 | croak("-P not allowed for setuid/setgid script\n"); |
96436eeb |
1931 | else if (fdscript >= 0) |
1932 | croak("fd script not allowed in suidperl\n"); |
13281fa4 |
1933 | else |
463ee0b2 |
1934 | croak("Script is not setuid/setgid in suidperl\n"); |
96436eeb |
1935 | |
1936 | /* We absolutely must clear out any saved ids here, so we */ |
1937 | /* exec the real perl, substituting fd script for scriptname. */ |
1938 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ |
760ac839 |
1939 | PerlIO_rewind(rsfp); |
1940 | lseek(PerlIO_fileno(rsfp),(Off_t)0,0); /* just in case rewind didn't */ |
96436eeb |
1941 | for (which = 1; origargv[which] && origargv[which] != scriptname; which++) ; |
1942 | if (!origargv[which]) |
1943 | croak("Permission denied"); |
760ac839 |
1944 | (void)sprintf(buf, "/dev/fd/%d/%.127s", PerlIO_fileno(rsfp), origargv[which]); |
96436eeb |
1945 | origargv[which] = buf; |
1946 | |
1947 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
760ac839 |
1948 | fcntl(PerlIO_fileno(rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb |
1949 | #endif |
1950 | |
1951 | (void)sprintf(tokenbuf, "%s/perl%s", BIN, patchlevel); |
1952 | execv(tokenbuf, origargv); /* try again */ |
1953 | croak("Can't do setuid\n"); |
13281fa4 |
1954 | #endif /* IAMSUID */ |
a687059c |
1955 | #else /* !DOSUID */ |
a687059c |
1956 | if (euid != uid || egid != gid) { /* (suidperl doesn't exist, in fact) */ |
1957 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW |
760ac839 |
1958 | Fstat(PerlIO_fileno(rsfp),&statbuf); /* may be either wrapped or real suid */ |
a687059c |
1959 | if ((euid != uid && euid == statbuf.st_uid && statbuf.st_mode & S_ISUID) |
1960 | || |
1961 | (egid != gid && egid == statbuf.st_gid && statbuf.st_mode & S_ISGID) |
1962 | ) |
1963 | if (!do_undump) |
463ee0b2 |
1964 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c |
1965 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1966 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ |
1967 | /* not set-id, must be wrapped */ |
a687059c |
1968 | } |
13281fa4 |
1969 | #endif /* DOSUID */ |
79072805 |
1970 | } |
13281fa4 |
1971 | |
79072805 |
1972 | static void |
1973 | find_beginning() |
1974 | { |
6e72f9df |
1975 | register char *s, *s2; |
33b78306 |
1976 | |
1977 | /* skip forward in input to the real script? */ |
1978 | |
bbce6d69 |
1979 | forbid_setid("-x"); |
33b78306 |
1980 | while (doextract) { |
79072805 |
1981 | if ((s = sv_gets(linestr, rsfp, 0)) == Nullch) |
463ee0b2 |
1982 | croak("No Perl script found in input\n"); |
6e72f9df |
1983 | if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) { |
760ac839 |
1984 | PerlIO_ungetc(rsfp, '\n'); /* to keep line count right */ |
33b78306 |
1985 | doextract = FALSE; |
6e72f9df |
1986 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
1987 | s2 = s; |
1988 | while (*s == ' ' || *s == '\t') s++; |
1989 | if (*s++ == '-') { |
1990 | while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--; |
1991 | if (strnEQ(s2-4,"perl",4)) |
1992 | /*SUPPRESS 530*/ |
1993 | while (s = moreswitches(s)) ; |
33b78306 |
1994 | } |
79072805 |
1995 | if (cddir && chdir(cddir) < 0) |
463ee0b2 |
1996 | croak("Can't chdir to %s",cddir); |
83025b21 |
1997 | } |
1998 | } |
1999 | } |
2000 | |
79072805 |
2001 | static void |
748a9306 |
2002 | init_ids() |
352d5a3a |
2003 | { |
748a9306 |
2004 | uid = (int)getuid(); |
2005 | euid = (int)geteuid(); |
2006 | gid = (int)getgid(); |
2007 | egid = (int)getegid(); |
2008 | #ifdef VMS |
2009 | uid |= gid << 16; |
2010 | euid |= egid << 16; |
2011 | #endif |
4633a7c4 |
2012 | tainting |= (uid && (euid != uid || egid != gid)); |
748a9306 |
2013 | } |
79072805 |
2014 | |
748a9306 |
2015 | static void |
bbce6d69 |
2016 | forbid_setid(s) |
2017 | char *s; |
2018 | { |
2019 | if (euid != uid) |
2020 | croak("No %s allowed while running setuid", s); |
2021 | if (egid != gid) |
2022 | croak("No %s allowed while running setgid", s); |
2023 | } |
2024 | |
2025 | static void |
748a9306 |
2026 | init_debugger() |
2027 | { |
79072805 |
2028 | curstash = debstash; |
748a9306 |
2029 | dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); |
79072805 |
2030 | AvREAL_off(dbargs); |
a0d0e21e |
2031 | DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); |
2032 | DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); |
748a9306 |
2033 | DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); |
2034 | DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); |
c07a80fd |
2035 | sv_setiv(DBsingle, 0); |
748a9306 |
2036 | DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); |
c07a80fd |
2037 | sv_setiv(DBtrace, 0); |
748a9306 |
2038 | DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); |
c07a80fd |
2039 | sv_setiv(DBsignal, 0); |
79072805 |
2040 | curstash = defstash; |
352d5a3a |
2041 | } |
2042 | |
79072805 |
2043 | static void |
8990e307 |
2044 | init_stacks() |
79072805 |
2045 | { |
6e72f9df |
2046 | curstack = newAV(); |
5f05dabc |
2047 | mainstack = curstack; /* remember in case we switch stacks */ |
2048 | AvREAL_off(curstack); /* not a real array */ |
6e72f9df |
2049 | av_extend(curstack,127); |
79072805 |
2050 | |
6e72f9df |
2051 | stack_base = AvARRAY(curstack); |
79072805 |
2052 | stack_sp = stack_base; |
8990e307 |
2053 | stack_max = stack_base + 127; |
79072805 |
2054 | |
5f05dabc |
2055 | cxstack_max = 8192 / sizeof(CONTEXT) - 2; /* Use most of 8K. */ |
2056 | New(50,cxstack,cxstack_max + 1,CONTEXT); |
2057 | cxstack_ix = -1; |
2058 | |
2059 | New(50,tmps_stack,128,SV*); |
2060 | tmps_ix = -1; |
2061 | tmps_max = 128; |
2062 | |
2063 | DEBUG( { |
2064 | New(51,debname,128,char); |
2065 | New(52,debdelim,128,char); |
2066 | } ) |
2067 | |
2068 | /* |
2069 | * The following stacks almost certainly should be per-interpreter, |
2070 | * but for now they're not. XXX |
2071 | */ |
2072 | |
6e72f9df |
2073 | if (markstack) { |
2074 | markstack_ptr = markstack; |
2075 | } else { |
2076 | New(54,markstack,64,I32); |
2077 | markstack_ptr = markstack; |
2078 | markstack_max = markstack + 64; |
2079 | } |
79072805 |
2080 | |
6e72f9df |
2081 | if (scopestack) { |
2082 | scopestack_ix = 0; |
2083 | } else { |
2084 | New(54,scopestack,32,I32); |
2085 | scopestack_ix = 0; |
2086 | scopestack_max = 32; |
2087 | } |
79072805 |
2088 | |
6e72f9df |
2089 | if (savestack) { |
2090 | savestack_ix = 0; |
2091 | } else { |
2092 | New(54,savestack,128,ANY); |
2093 | savestack_ix = 0; |
2094 | savestack_max = 128; |
2095 | } |
79072805 |
2096 | |
6e72f9df |
2097 | if (retstack) { |
2098 | retstack_ix = 0; |
2099 | } else { |
2100 | New(54,retstack,16,OP*); |
2101 | retstack_ix = 0; |
2102 | retstack_max = 16; |
5f05dabc |
2103 | } |
378cc40b |
2104 | } |
33b78306 |
2105 | |
6e72f9df |
2106 | static void |
2107 | nuke_stacks() |
2108 | { |
2109 | Safefree(cxstack); |
2110 | Safefree(tmps_stack); |
5f05dabc |
2111 | DEBUG( { |
2112 | Safefree(debname); |
2113 | Safefree(debdelim); |
2114 | } ) |
6e72f9df |
2115 | } |
2116 | |
760ac839 |
2117 | static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
7aa04957 |
2118 | |
79072805 |
2119 | static void |
8990e307 |
2120 | init_lexer() |
2121 | { |
a0d0e21e |
2122 | tmpfp = rsfp; |
8990e307 |
2123 | lex_start(linestr); |
2124 | rsfp = tmpfp; |
2125 | subname = newSVpv("main",4); |
2126 | } |
2127 | |
2128 | static void |
79072805 |
2129 | init_predump_symbols() |
45d8adaa |
2130 | { |
93a17b20 |
2131 | GV *tmpgv; |
a0d0e21e |
2132 | GV *othergv; |
79072805 |
2133 | |
85e6fe83 |
2134 | sv_setpvn(GvSV(gv_fetchpv("\"", TRUE, SVt_PV)), " ", 1); |
79072805 |
2135 | |
85e6fe83 |
2136 | stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
a5f75d66 |
2137 | GvMULTI_on(stdingv); |
760ac839 |
2138 | IoIFP(GvIOp(stdingv)) = PerlIO_stdin(); |
adbc6bb1 |
2139 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 |
2140 | GvMULTI_on(tmpgv); |
a0d0e21e |
2141 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(stdingv)); |
79072805 |
2142 | |
85e6fe83 |
2143 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 |
2144 | GvMULTI_on(tmpgv); |
760ac839 |
2145 | IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout(); |
4633a7c4 |
2146 | setdefout(tmpgv); |
adbc6bb1 |
2147 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 |
2148 | GvMULTI_on(tmpgv); |
a0d0e21e |
2149 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(defoutgv)); |
79072805 |
2150 | |
a0d0e21e |
2151 | othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
a5f75d66 |
2152 | GvMULTI_on(othergv); |
760ac839 |
2153 | IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr(); |
adbc6bb1 |
2154 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 |
2155 | GvMULTI_on(tmpgv); |
a0d0e21e |
2156 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv)); |
79072805 |
2157 | |
2158 | statname = NEWSV(66,0); /* last filename we did stat on */ |
ab821d7f |
2159 | |
6e72f9df |
2160 | if (!osname) |
2161 | osname = savepv(OSNAME); |
79072805 |
2162 | } |
33b78306 |
2163 | |
79072805 |
2164 | static void |
2165 | init_postdump_symbols(argc,argv,env) |
2166 | register int argc; |
2167 | register char **argv; |
2168 | register char **env; |
33b78306 |
2169 | { |
79072805 |
2170 | char *s; |
2171 | SV *sv; |
2172 | GV* tmpgv; |
fe14fcc3 |
2173 | |
79072805 |
2174 | argc--,argv++; /* skip name of script */ |
2175 | if (doswitches) { |
2176 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
2177 | if (!argv[0][1]) |
2178 | break; |
2179 | if (argv[0][1] == '-') { |
2180 | argc--,argv++; |
2181 | break; |
2182 | } |
93a17b20 |
2183 | if (s = strchr(argv[0], '=')) { |
79072805 |
2184 | *s++ = '\0'; |
85e6fe83 |
2185 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 |
2186 | } |
2187 | else |
85e6fe83 |
2188 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 |
2189 | } |
79072805 |
2190 | } |
2191 | toptarget = NEWSV(0,0); |
2192 | sv_upgrade(toptarget, SVt_PVFM); |
2193 | sv_setpvn(toptarget, "", 0); |
748a9306 |
2194 | bodytarget = NEWSV(0,0); |
79072805 |
2195 | sv_upgrade(bodytarget, SVt_PVFM); |
2196 | sv_setpvn(bodytarget, "", 0); |
2197 | formtarget = bodytarget; |
2198 | |
bbce6d69 |
2199 | TAINT; |
85e6fe83 |
2200 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
79072805 |
2201 | sv_setpv(GvSV(tmpgv),origfilename); |
2202 | magicname("0", "0", 1); |
2203 | } |
85e6fe83 |
2204 | if (tmpgv = gv_fetchpv("\024",TRUE, SVt_PV)) |
79072805 |
2205 | time(&basetime); |
85e6fe83 |
2206 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
79072805 |
2207 | sv_setpv(GvSV(tmpgv),origargv[0]); |
85e6fe83 |
2208 | if (argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { |
a5f75d66 |
2209 | GvMULTI_on(argvgv); |
79072805 |
2210 | (void)gv_AVadd(argvgv); |
2211 | av_clear(GvAVn(argvgv)); |
2212 | for (; argc > 0; argc--,argv++) { |
a0d0e21e |
2213 | av_push(GvAVn(argvgv),newSVpv(argv[0],0)); |
79072805 |
2214 | } |
2215 | } |
85e6fe83 |
2216 | if (envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 |
2217 | HV *hv; |
a5f75d66 |
2218 | GvMULTI_on(envgv); |
79072805 |
2219 | hv = GvHVn(envgv); |
463ee0b2 |
2220 | hv_clear(hv); |
a0d0e21e |
2221 | #ifndef VMS /* VMS doesn't have environ array */ |
4633a7c4 |
2222 | /* Note that if the supplied env parameter is actually a copy |
2223 | of the global environ then it may now point to free'd memory |
2224 | if the environment has been modified since. To avoid this |
2225 | problem we treat env==NULL as meaning 'use the default' |
2226 | */ |
2227 | if (!env) |
2228 | env = environ; |
8990e307 |
2229 | if (env != environ) { |
79072805 |
2230 | environ[0] = Nullch; |
8990e307 |
2231 | hv_magic(hv, envgv, 'E'); |
2232 | } |
79072805 |
2233 | for (; *env; env++) { |
93a17b20 |
2234 | if (!(s = strchr(*env,'='))) |
79072805 |
2235 | continue; |
2236 | *s++ = '\0'; |
2237 | sv = newSVpv(s--,0); |
85e6fe83 |
2238 | sv_magic(sv, sv, 'e', *env, s - *env); |
79072805 |
2239 | (void)hv_store(hv, *env, s - *env, sv, 0); |
2240 | *s = '='; |
fe14fcc3 |
2241 | } |
4550b24a |
2242 | #endif |
2243 | #ifdef DYNAMIC_ENV_FETCH |
2244 | HvNAME(hv) = savepv(ENV_HV_NAME); |
2245 | #endif |
f511e57f |
2246 | hv_magic(hv, envgv, 'E'); |
79072805 |
2247 | } |
bbce6d69 |
2248 | TAINT_NOT; |
85e6fe83 |
2249 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
79072805 |
2250 | sv_setiv(GvSV(tmpgv),(I32)getpid()); |
33b78306 |
2251 | } |
34de22dd |
2252 | |
79072805 |
2253 | static void |
2254 | init_perllib() |
34de22dd |
2255 | { |
85e6fe83 |
2256 | char *s; |
2257 | if (!tainting) { |
552a7a9b |
2258 | #ifndef VMS |
85e6fe83 |
2259 | s = getenv("PERL5LIB"); |
2260 | if (s) |
774d564b |
2261 | incpush(s, TRUE); |
85e6fe83 |
2262 | else |
774d564b |
2263 | incpush(getenv("PERLLIB"), FALSE); |
552a7a9b |
2264 | #else /* VMS */ |
2265 | /* Treat PERL5?LIB as a possible search list logical name -- the |
2266 | * "natural" VMS idiom for a Unix path string. We allow each |
2267 | * element to be a set of |-separated directories for compatibility. |
2268 | */ |
2269 | char buf[256]; |
2270 | int idx = 0; |
2271 | if (my_trnlnm("PERL5LIB",buf,0)) |
774d564b |
2272 | do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx)); |
552a7a9b |
2273 | else |
774d564b |
2274 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE); |
552a7a9b |
2275 | #endif /* VMS */ |
85e6fe83 |
2276 | } |
34de22dd |
2277 | |
df5cef82 |
2278 | /* Use the ~-expanded versions of APPLIB (undocumented), |
2279 | ARCHLIB PRIVLIB SITEARCH SITELIB and OLDARCHLIB |
2280 | */ |
4633a7c4 |
2281 | #ifdef APPLLIB_EXP |
774d564b |
2282 | incpush(APPLLIB_EXP, FALSE); |
16d20bd9 |
2283 | #endif |
4633a7c4 |
2284 | |
fed7345c |
2285 | #ifdef ARCHLIB_EXP |
774d564b |
2286 | incpush(ARCHLIB_EXP, FALSE); |
a0d0e21e |
2287 | #endif |
fed7345c |
2288 | #ifndef PRIVLIB_EXP |
2289 | #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" |
34de22dd |
2290 | #endif |
774d564b |
2291 | incpush(PRIVLIB_EXP, FALSE); |
4633a7c4 |
2292 | |
2293 | #ifdef SITEARCH_EXP |
774d564b |
2294 | incpush(SITEARCH_EXP, FALSE); |
4633a7c4 |
2295 | #endif |
2296 | #ifdef SITELIB_EXP |
774d564b |
2297 | incpush(SITELIB_EXP, FALSE); |
4633a7c4 |
2298 | #endif |
2299 | #ifdef OLDARCHLIB_EXP /* 5.00[01] compatibility */ |
774d564b |
2300 | incpush(OLDARCHLIB_EXP, FALSE); |
4633a7c4 |
2301 | #endif |
a0d0e21e |
2302 | |
4633a7c4 |
2303 | if (!tainting) |
774d564b |
2304 | incpush(".", FALSE); |
2305 | } |
2306 | |
2307 | #if defined(DOSISH) |
2308 | # define PERLLIB_SEP ';' |
2309 | #else |
2310 | # if defined(VMS) |
2311 | # define PERLLIB_SEP '|' |
2312 | # else |
2313 | # define PERLLIB_SEP ':' |
2314 | # endif |
2315 | #endif |
2316 | #ifndef PERLLIB_MANGLE |
2317 | # define PERLLIB_MANGLE(s,n) (s) |
2318 | #endif |
2319 | |
2320 | static void |
2321 | incpush(p, addsubdirs) |
2322 | char *p; |
2323 | int addsubdirs; |
2324 | { |
2325 | SV *subdir = Nullsv; |
2326 | static char *archpat_auto; |
2327 | |
2328 | if (!p) |
2329 | return; |
2330 | |
2331 | if (addsubdirs) { |
2332 | subdir = newSV(0); |
2333 | if (!archpat_auto) { |
2334 | STRLEN len = (sizeof(ARCHNAME) + strlen(patchlevel) |
2335 | + sizeof("//auto")); |
2336 | New(55, archpat_auto, len, char); |
2337 | sprintf(archpat_auto, "/%s/%s/auto", ARCHNAME, patchlevel); |
2338 | } |
2339 | } |
2340 | |
2341 | /* Break at all separators */ |
2342 | while (p && *p) { |
2343 | SV *libdir = newSV(0); |
2344 | char *s; |
2345 | |
2346 | /* skip any consecutive separators */ |
2347 | while ( *p == PERLLIB_SEP ) { |
2348 | /* Uncomment the next line for PATH semantics */ |
2349 | /* av_push(GvAVn(incgv), newSVpv(".", 1)); */ |
2350 | p++; |
2351 | } |
2352 | |
2353 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { |
2354 | sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)), |
2355 | (STRLEN)(s - p)); |
2356 | p = s + 1; |
2357 | } |
2358 | else { |
2359 | sv_setpv(libdir, PERLLIB_MANGLE(p, 0)); |
2360 | p = Nullch; /* break out */ |
2361 | } |
2362 | |
2363 | /* |
2364 | * BEFORE pushing libdir onto @INC we may first push version- and |
2365 | * archname-specific sub-directories. |
2366 | */ |
2367 | if (addsubdirs) { |
2368 | struct stat tmpstatbuf; |
2369 | |
2370 | /* .../archname/version if -d .../archname/auto */ |
2371 | sv_setsv(subdir, libdir); |
2372 | sv_catpv(subdir, archpat_auto); |
2373 | if (Stat(SvPVX(subdir), &tmpstatbuf) >= 0 && |
2374 | S_ISDIR(tmpstatbuf.st_mode)) |
2375 | av_push(GvAVn(incgv), |
2376 | newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto")); |
2377 | |
2378 | /* .../archname/version if -d .../archname/version/auto */ |
2379 | sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME), |
2380 | strlen(patchlevel) + 1, "", 0); |
2381 | if (Stat(SvPVX(subdir), &tmpstatbuf) >= 0 && |
2382 | S_ISDIR(tmpstatbuf.st_mode)) |
2383 | av_push(GvAVn(incgv), |
2384 | newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto")); |
2385 | } |
2386 | |
2387 | /* finally push this lib directory on the end of @INC */ |
2388 | av_push(GvAVn(incgv), libdir); |
2389 | } |
2390 | |
2391 | SvREFCNT_dec(subdir); |
34de22dd |
2392 | } |
93a17b20 |
2393 | |
2394 | void |
2395 | calllist(list) |
2396 | AV* list; |
2397 | { |
a5f75d66 |
2398 | Sigjmp_buf oldtop; |
a0d0e21e |
2399 | STRLEN len; |
2400 | line_t oldline = curcop->cop_line; |
93a17b20 |
2401 | |
a5f75d66 |
2402 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
93a17b20 |
2403 | |
8990e307 |
2404 | while (AvFILL(list) >= 0) { |
2405 | CV *cv = (CV*)av_shift(list); |
93a17b20 |
2406 | |
8990e307 |
2407 | SAVEFREESV(cv); |
a0d0e21e |
2408 | |
a5f75d66 |
2409 | switch (Sigsetjmp(top_env,1)) { |
748a9306 |
2410 | case 0: { |
4633a7c4 |
2411 | SV* atsv = GvSV(errgv); |
748a9306 |
2412 | PUSHMARK(stack_sp); |
2413 | perl_call_sv((SV*)cv, G_EVAL|G_DISCARD); |
2414 | (void)SvPV(atsv, len); |
2415 | if (len) { |
a5f75d66 |
2416 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
748a9306 |
2417 | curcop = &compiling; |
2418 | curcop->cop_line = oldline; |
2419 | if (list == beginav) |
2420 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); |
2421 | else |
2422 | sv_catpv(atsv, "END failed--cleanup aborted"); |
2423 | croak("%s", SvPVX(atsv)); |
2424 | } |
a0d0e21e |
2425 | } |
85e6fe83 |
2426 | break; |
2427 | case 1: |
748a9306 |
2428 | #ifdef VMS |
85e6fe83 |
2429 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 |
2430 | #else |
2431 | statusvalue = 1; |
2432 | #endif |
85e6fe83 |
2433 | /* FALL THROUGH */ |
2434 | case 2: |
2435 | /* my_exit() was called */ |
2436 | curstash = defstash; |
2437 | if (endav) |
2438 | calllist(endav); |
a0d0e21e |
2439 | FREETMPS; |
a5f75d66 |
2440 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e |
2441 | curcop = &compiling; |
2442 | curcop->cop_line = oldline; |
85e6fe83 |
2443 | if (statusvalue) { |
2444 | if (list == beginav) |
a0d0e21e |
2445 | croak("BEGIN failed--compilation aborted"); |
85e6fe83 |
2446 | else |
a0d0e21e |
2447 | croak("END failed--cleanup aborted"); |
85e6fe83 |
2448 | } |
85e6fe83 |
2449 | my_exit(statusvalue); |
2450 | /* NOTREACHED */ |
2451 | return; |
2452 | case 3: |
2453 | if (!restartop) { |
760ac839 |
2454 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e |
2455 | FREETMPS; |
85e6fe83 |
2456 | break; |
2457 | } |
a5f75d66 |
2458 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e |
2459 | curcop = &compiling; |
2460 | curcop->cop_line = oldline; |
a5f75d66 |
2461 | Siglongjmp(top_env, 3); |
8990e307 |
2462 | } |
93a17b20 |
2463 | } |
2464 | |
a5f75d66 |
2465 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
93a17b20 |
2466 | } |
2467 | |