Commit | Line | Data |
a0d0e21e |
1 | /* perl.c |
2 | * |
3 | * Copyright (c) 1987-1994 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 | |
a0d0e21e |
18 | /* Omit -- it causes too much grief on mixed systems. |
19 | #ifdef I_UNISTD |
20 | #include <unistd.h> |
21 | #endif |
22 | */ |
23 | |
24 | char rcsid[] = "perl.c\nPatch level: ###\n"; |
463ee0b2 |
25 | |
a687059c |
26 | #ifdef IAMSUID |
27 | #ifndef DOSUID |
28 | #define DOSUID |
29 | #endif |
30 | #endif |
378cc40b |
31 | |
a687059c |
32 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
33 | #ifdef DOSUID |
34 | #undef DOSUID |
35 | #endif |
36 | #endif |
8d063cd8 |
37 | |
a0d0e21e |
38 | static void find_beginning _((void)); |
39 | static void incpush _((char *)); |
748a9306 |
40 | static void init_ids _((void)); |
a0d0e21e |
41 | static void init_debugger _((void)); |
42 | static void init_lexer _((void)); |
43 | static void init_main_stash _((void)); |
44 | static void init_perllib _((void)); |
45 | static void init_postdump_symbols _((int, char **, char **)); |
46 | static void init_predump_symbols _((void)); |
47 | static void init_stacks _((void)); |
48 | static void open_script _((char *, bool, SV *)); |
49 | static void validate_suid _((char *)); |
79072805 |
50 | |
93a17b20 |
51 | PerlInterpreter * |
79072805 |
52 | perl_alloc() |
53 | { |
93a17b20 |
54 | PerlInterpreter *sv_interp; |
79072805 |
55 | |
8990e307 |
56 | curinterp = 0; |
93a17b20 |
57 | New(53, sv_interp, 1, PerlInterpreter); |
79072805 |
58 | return sv_interp; |
59 | } |
60 | |
61 | void |
62 | perl_construct( sv_interp ) |
93a17b20 |
63 | register PerlInterpreter *sv_interp; |
79072805 |
64 | { |
65 | if (!(curinterp = sv_interp)) |
66 | return; |
67 | |
8990e307 |
68 | #ifdef MULTIPLICITY |
93a17b20 |
69 | Zero(sv_interp, 1, PerlInterpreter); |
8990e307 |
70 | #endif |
79072805 |
71 | |
72 | /* Init the real globals? */ |
73 | if (!linestr) { |
74 | linestr = NEWSV(65,80); |
ed6116ce |
75 | sv_upgrade(linestr,SVt_PVIV); |
79072805 |
76 | |
77 | SvREADONLY_on(&sv_undef); |
78 | |
79 | sv_setpv(&sv_no,No); |
463ee0b2 |
80 | SvNV(&sv_no); |
79072805 |
81 | SvREADONLY_on(&sv_no); |
82 | |
83 | sv_setpv(&sv_yes,Yes); |
463ee0b2 |
84 | SvNV(&sv_yes); |
79072805 |
85 | SvREADONLY_on(&sv_yes); |
86 | |
87 | #ifdef MSDOS |
88 | /* |
89 | * There is no way we can refer to them from Perl so close them to save |
90 | * space. The other alternative would be to provide STDAUX and STDPRN |
91 | * filehandles. |
92 | */ |
93 | (void)fclose(stdaux); |
94 | (void)fclose(stdprn); |
95 | #endif |
96 | } |
97 | |
8990e307 |
98 | #ifdef MULTIPLICITY |
79072805 |
99 | chopset = " \n-"; |
463ee0b2 |
100 | copline = NOLINE; |
79072805 |
101 | curcop = &compiling; |
79072805 |
102 | dlmax = 128; |
103 | laststatval = -1; |
104 | laststype = OP_STAT; |
105 | maxscream = -1; |
106 | maxsysfd = MAXSYSFD; |
107 | nrs = "\n"; |
108 | nrschar = '\n'; |
109 | nrslen = 1; |
110 | rs = "\n"; |
111 | rschar = '\n'; |
112 | rsfp = Nullfp; |
113 | rslen = 1; |
463ee0b2 |
114 | statname = Nullsv; |
79072805 |
115 | tmps_floor = -1; |
79072805 |
116 | #endif |
117 | |
748a9306 |
118 | init_ids(); |
a0d0e21e |
119 | sprintf(patchlevel, "%5.3f", 5.0 + (PATCHLEVEL / 1000.0)); |
79072805 |
120 | |
121 | fdpid = newAV(); /* for remembering popen pids by fd */ |
463ee0b2 |
122 | pidstatus = newHV();/* for remembering status of dead pids */ |
8990e307 |
123 | |
124 | init_stacks(); |
125 | ENTER; |
79072805 |
126 | } |
127 | |
128 | void |
748a9306 |
129 | perl_destruct(sv_interp) |
93a17b20 |
130 | register PerlInterpreter *sv_interp; |
79072805 |
131 | { |
748a9306 |
132 | int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
8990e307 |
133 | I32 last_sv_count; |
a0d0e21e |
134 | HV *hv; |
8990e307 |
135 | |
79072805 |
136 | if (!(curinterp = sv_interp)) |
137 | return; |
748a9306 |
138 | |
139 | destruct_level = perl_destruct_level; |
8990e307 |
140 | LEAVE; |
a0d0e21e |
141 | FREETMPS; |
142 | |
143 | if (sv_objcount) { |
144 | /* We must account for everything. First the syntax tree. */ |
145 | if (main_root) { |
146 | curpad = AvARRAY(comppad); |
147 | op_free(main_root); |
148 | main_root = 0; |
149 | } |
150 | } |
151 | if (sv_objcount) { |
152 | /* |
153 | * Try to destruct global references. We do this first so that the |
154 | * destructors and destructees still exist. Some sv's might remain. |
155 | * Non-referenced objects are on their own. |
156 | */ |
157 | |
158 | dirty = TRUE; |
159 | sv_clean_objs(); |
8990e307 |
160 | } |
161 | |
a0d0e21e |
162 | if (destruct_level == 0){ |
8990e307 |
163 | |
a0d0e21e |
164 | DEBUG_P(debprofdump()); |
165 | |
166 | /* The exit() function will do everything that needs doing. */ |
167 | return; |
168 | } |
169 | |
170 | /* Prepare to destruct main symbol table. */ |
171 | hv = defstash; |
85e6fe83 |
172 | defstash = 0; |
a0d0e21e |
173 | SvREFCNT_dec(hv); |
174 | |
175 | FREETMPS; |
176 | if (destruct_level >= 2) { |
177 | if (scopestack_ix != 0) |
178 | warn("Unbalanced scopes: %d more ENTERs than LEAVEs\n", scopestack_ix); |
179 | if (savestack_ix != 0) |
180 | warn("Unbalanced saves: %d more saves than restores\n", savestack_ix); |
181 | if (tmps_floor != -1) |
182 | warn("Unbalanced tmps: %d more allocs than frees\n", tmps_floor + 1); |
183 | if (cxstack_ix != -1) |
184 | warn("Unbalanced context: %d more PUSHes than POPs\n", cxstack_ix + 1); |
185 | } |
8990e307 |
186 | |
187 | /* Now absolutely destruct everything, somehow or other, loops or no. */ |
8990e307 |
188 | last_sv_count = 0; |
189 | while (sv_count != 0 && sv_count != last_sv_count) { |
190 | last_sv_count = sv_count; |
191 | sv_clean_all(); |
192 | } |
193 | if (sv_count != 0) |
194 | warn("Scalars leaked: %d\n", sv_count); |
a0d0e21e |
195 | |
196 | DEBUG_P(debprofdump()); |
79072805 |
197 | } |
198 | |
199 | void |
200 | perl_free(sv_interp) |
93a17b20 |
201 | PerlInterpreter *sv_interp; |
79072805 |
202 | { |
203 | if (!(curinterp = sv_interp)) |
204 | return; |
205 | Safefree(sv_interp); |
206 | } |
ecfc5424 |
207 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) |
a0d0e21e |
208 | char *getenv _((char *)); /* Usually in <stdlib.h> */ |
209 | #endif |
79072805 |
210 | |
211 | int |
a0d0e21e |
212 | perl_parse(sv_interp, xsinit, argc, argv, env) |
93a17b20 |
213 | PerlInterpreter *sv_interp; |
a0d0e21e |
214 | void (*xsinit)_((void)); |
215 | int argc; |
216 | char **argv; |
79072805 |
217 | char **env; |
8d063cd8 |
218 | { |
79072805 |
219 | register SV *sv; |
8d063cd8 |
220 | register char *s; |
45d8adaa |
221 | char *scriptname; |
a0d0e21e |
222 | VOL bool dosearch = FALSE; |
13281fa4 |
223 | char *validarg = ""; |
748a9306 |
224 | AV* comppadlist; |
8d063cd8 |
225 | |
a687059c |
226 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
227 | #ifdef IAMSUID |
228 | #undef IAMSUID |
463ee0b2 |
229 | croak("suidperl is no longer needed since the kernel can now execute\n\ |
a687059c |
230 | setuid perl scripts securely.\n"); |
231 | #endif |
232 | #endif |
233 | |
79072805 |
234 | if (!(curinterp = sv_interp)) |
235 | return 255; |
236 | |
ac58e20f |
237 | origargv = argv; |
238 | origargc = argc; |
a0d0e21e |
239 | #ifndef VMS /* VMS doesn't have environ array */ |
fe14fcc3 |
240 | origenviron = environ; |
a0d0e21e |
241 | #endif |
242 | |
243 | if (do_undump) { |
244 | |
245 | /* Come here if running an undumped a.out. */ |
246 | |
247 | origfilename = savepv(argv[0]); |
248 | do_undump = FALSE; |
249 | cxstack_ix = -1; /* start label stack again */ |
748a9306 |
250 | init_ids(); |
a0d0e21e |
251 | init_postdump_symbols(argc,argv,env); |
252 | return 0; |
253 | } |
254 | |
255 | if (main_root) |
256 | op_free(main_root); |
257 | main_root = 0; |
79072805 |
258 | |
259 | switch (setjmp(top_env)) { |
260 | case 1: |
748a9306 |
261 | #ifdef VMS |
79072805 |
262 | statusvalue = 255; |
748a9306 |
263 | #else |
264 | statusvalue = 1; |
265 | #endif |
79072805 |
266 | case 2: |
8990e307 |
267 | curstash = defstash; |
268 | if (endav) |
269 | calllist(endav); |
79072805 |
270 | return(statusvalue); /* my_exit() was called */ |
271 | case 3: |
272 | fprintf(stderr, "panic: top_env\n"); |
8990e307 |
273 | return 1; |
79072805 |
274 | } |
275 | |
79072805 |
276 | sv_setpvn(linestr,"",0); |
277 | sv = newSVpv("",0); /* first used for -I flags */ |
8990e307 |
278 | SAVEFREESV(sv); |
79072805 |
279 | init_main_stash(); |
33b78306 |
280 | for (argc--,argv++; argc > 0; argc--,argv++) { |
8d063cd8 |
281 | if (argv[0][0] != '-' || !argv[0][1]) |
282 | break; |
13281fa4 |
283 | #ifdef DOSUID |
284 | if (*validarg) |
285 | validarg = " PHOOEY "; |
286 | else |
287 | validarg = argv[0]; |
288 | #endif |
289 | s = argv[0]+1; |
8d063cd8 |
290 | reswitch: |
13281fa4 |
291 | switch (*s) { |
27e2fb84 |
292 | case '0': |
2304df62 |
293 | case 'F': |
378cc40b |
294 | case 'a': |
33b78306 |
295 | case 'c': |
a687059c |
296 | case 'd': |
8d063cd8 |
297 | case 'D': |
33b78306 |
298 | case 'i': |
fe14fcc3 |
299 | case 'l': |
33b78306 |
300 | case 'n': |
301 | case 'p': |
79072805 |
302 | case 's': |
463ee0b2 |
303 | case 'T': |
33b78306 |
304 | case 'u': |
305 | case 'U': |
306 | case 'v': |
307 | case 'w': |
308 | if (s = moreswitches(s)) |
309 | goto reswitch; |
8d063cd8 |
310 | break; |
33b78306 |
311 | |
8d063cd8 |
312 | case 'e': |
a687059c |
313 | if (euid != uid || egid != gid) |
463ee0b2 |
314 | croak("No -e allowed in setuid scripts"); |
8d063cd8 |
315 | if (!e_fp) { |
a0d0e21e |
316 | e_tmpname = savepv(TMPPATH); |
a687059c |
317 | (void)mktemp(e_tmpname); |
83025b21 |
318 | if (!*e_tmpname) |
463ee0b2 |
319 | croak("Can't mktemp()"); |
8d063cd8 |
320 | e_fp = fopen(e_tmpname,"w"); |
33b78306 |
321 | if (!e_fp) |
463ee0b2 |
322 | croak("Cannot open temporary file"); |
8d063cd8 |
323 | } |
33b78306 |
324 | if (argv[1]) { |
8d063cd8 |
325 | fputs(argv[1],e_fp); |
33b78306 |
326 | argc--,argv++; |
327 | } |
a687059c |
328 | (void)putc('\n', e_fp); |
8d063cd8 |
329 | break; |
330 | case 'I': |
463ee0b2 |
331 | taint_not("-I"); |
79072805 |
332 | sv_catpv(sv,"-"); |
333 | sv_catpv(sv,s); |
334 | sv_catpv(sv," "); |
a687059c |
335 | if (*++s) { |
a0d0e21e |
336 | av_push(GvAVn(incgv),newSVpv(s,0)); |
378cc40b |
337 | } |
33b78306 |
338 | else if (argv[1]) { |
a0d0e21e |
339 | av_push(GvAVn(incgv),newSVpv(argv[1],0)); |
79072805 |
340 | sv_catpv(sv,argv[1]); |
8d063cd8 |
341 | argc--,argv++; |
79072805 |
342 | sv_catpv(sv," "); |
8d063cd8 |
343 | } |
344 | break; |
8d063cd8 |
345 | case 'P': |
463ee0b2 |
346 | taint_not("-P"); |
8d063cd8 |
347 | preprocess = TRUE; |
13281fa4 |
348 | s++; |
8d063cd8 |
349 | goto reswitch; |
378cc40b |
350 | case 'S': |
463ee0b2 |
351 | taint_not("-S"); |
378cc40b |
352 | dosearch = TRUE; |
13281fa4 |
353 | s++; |
378cc40b |
354 | goto reswitch; |
33b78306 |
355 | case 'x': |
356 | doextract = TRUE; |
13281fa4 |
357 | s++; |
33b78306 |
358 | if (*s) |
a0d0e21e |
359 | cddir = savepv(s); |
33b78306 |
360 | break; |
8d063cd8 |
361 | case '-': |
362 | argc--,argv++; |
363 | goto switch_end; |
364 | case 0: |
365 | break; |
366 | default: |
463ee0b2 |
367 | croak("Unrecognized switch: -%s",s); |
8d063cd8 |
368 | } |
369 | } |
370 | switch_end: |
45d8adaa |
371 | scriptname = argv[0]; |
8d063cd8 |
372 | if (e_fp) { |
83025b21 |
373 | if (fflush(e_fp) || ferror(e_fp) || fclose(e_fp)) |
2304df62 |
374 | croak("Can't write to temp file for -e: %s", Strerror(errno)); |
8d063cd8 |
375 | argc++,argv--; |
45d8adaa |
376 | scriptname = e_tmpname; |
8d063cd8 |
377 | } |
79072805 |
378 | else if (scriptname == Nullch) { |
379 | #ifdef MSDOS |
380 | if ( isatty(fileno(stdin)) ) |
381 | moreswitches("v"); |
fe14fcc3 |
382 | #endif |
79072805 |
383 | scriptname = "-"; |
384 | } |
fe14fcc3 |
385 | |
79072805 |
386 | init_perllib(); |
8d063cd8 |
387 | |
79072805 |
388 | open_script(scriptname,dosearch,sv); |
8d063cd8 |
389 | |
79072805 |
390 | validate_suid(validarg); |
378cc40b |
391 | |
79072805 |
392 | if (doextract) |
393 | find_beginning(); |
394 | |
748a9306 |
395 | compcv = (CV*)NEWSV(1104,0); |
396 | sv_upgrade((SV *)compcv, SVt_PVCV); |
397 | |
79072805 |
398 | pad = newAV(); |
399 | comppad = pad; |
400 | av_push(comppad, Nullsv); |
401 | curpad = AvARRAY(comppad); |
93a17b20 |
402 | padname = newAV(); |
8990e307 |
403 | comppad_name = padname; |
404 | comppad_name_fill = 0; |
405 | min_intro_pending = 0; |
79072805 |
406 | padix = 0; |
407 | |
748a9306 |
408 | comppadlist = newAV(); |
409 | AvREAL_off(comppadlist); |
410 | av_store(comppadlist, 0, SvREFCNT_inc((SV*)comppad_name)); |
411 | av_store(comppadlist, 1, SvREFCNT_inc((SV*)comppad)); |
412 | CvPADLIST(compcv) = comppadlist; |
413 | |
a0d0e21e |
414 | if (xsinit) |
415 | (*xsinit)(); /* in case linked C routines want magical variables */ |
748a9306 |
416 | #ifdef VMS |
417 | init_os_extras(); |
418 | #endif |
93a17b20 |
419 | |
93a17b20 |
420 | init_predump_symbols(); |
8990e307 |
421 | if (!do_undump) |
422 | init_postdump_symbols(argc,argv,env); |
93a17b20 |
423 | |
79072805 |
424 | init_lexer(); |
425 | |
426 | /* now parse the script */ |
427 | |
428 | error_count = 0; |
429 | if (yyparse() || error_count) { |
430 | if (minus_c) |
463ee0b2 |
431 | croak("%s had compilation errors.\n", origfilename); |
79072805 |
432 | else { |
463ee0b2 |
433 | croak("Execution of %s aborted due to compilation errors.\n", |
79072805 |
434 | origfilename); |
378cc40b |
435 | } |
79072805 |
436 | } |
437 | curcop->cop_line = 0; |
438 | curstash = defstash; |
439 | preprocess = FALSE; |
440 | if (e_fp) { |
441 | e_fp = Nullfp; |
442 | (void)UNLINK(e_tmpname); |
378cc40b |
443 | } |
a687059c |
444 | |
93a17b20 |
445 | /* now that script is parsed, we can modify record separator */ |
a687059c |
446 | |
93a17b20 |
447 | rs = nrs; |
448 | rslen = nrslen; |
449 | rschar = nrschar; |
450 | rspara = (nrslen == 2); |
85e6fe83 |
451 | sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), rs, rslen); |
45d8adaa |
452 | |
79072805 |
453 | if (do_undump) |
454 | my_unexec(); |
455 | |
8990e307 |
456 | if (dowarn) |
457 | gv_check(defstash); |
458 | |
a0d0e21e |
459 | LEAVE; |
460 | FREETMPS; |
461 | ENTER; |
462 | restartop = 0; |
79072805 |
463 | return 0; |
464 | } |
465 | |
466 | int |
467 | perl_run(sv_interp) |
93a17b20 |
468 | PerlInterpreter *sv_interp; |
79072805 |
469 | { |
470 | if (!(curinterp = sv_interp)) |
471 | return 255; |
472 | switch (setjmp(top_env)) { |
473 | case 1: |
474 | cxstack_ix = -1; /* start context stack again */ |
475 | break; |
476 | case 2: |
477 | curstash = defstash; |
93a17b20 |
478 | if (endav) |
479 | calllist(endav); |
a0d0e21e |
480 | FREETMPS; |
93a17b20 |
481 | return(statusvalue); /* my_exit() was called */ |
79072805 |
482 | case 3: |
483 | if (!restartop) { |
484 | fprintf(stderr, "panic: restartop\n"); |
a0d0e21e |
485 | FREETMPS; |
8990e307 |
486 | return 1; |
83025b21 |
487 | } |
79072805 |
488 | if (stack != mainstack) { |
489 | dSP; |
490 | SWITCHSTACK(stack, mainstack); |
491 | } |
492 | break; |
8d063cd8 |
493 | } |
79072805 |
494 | |
495 | if (!restartop) { |
496 | DEBUG_x(dump_all()); |
497 | DEBUG(fprintf(stderr,"\nEXECUTING...\n\n")); |
498 | |
499 | if (minus_c) { |
500 | fprintf(stderr,"%s syntax OK\n", origfilename); |
501 | my_exit(0); |
502 | } |
a0d0e21e |
503 | if (perldb && DBsingle) |
504 | sv_setiv(DBsingle, 1); |
45d8adaa |
505 | } |
79072805 |
506 | |
507 | /* do it */ |
508 | |
509 | if (restartop) { |
510 | op = restartop; |
511 | restartop = 0; |
512 | run(); |
513 | } |
514 | else if (main_start) { |
515 | op = main_start; |
516 | run(); |
517 | } |
79072805 |
518 | |
519 | my_exit(0); |
a0d0e21e |
520 | return 0; |
79072805 |
521 | } |
522 | |
523 | void |
524 | my_exit(status) |
748a9306 |
525 | U32 status; |
79072805 |
526 | { |
a0d0e21e |
527 | register CONTEXT *cx; |
528 | I32 gimme; |
529 | SV **newsp; |
530 | |
748a9306 |
531 | statusvalue = FIXSTATUS(status); |
a0d0e21e |
532 | if (cxstack_ix >= 0) { |
533 | if (cxstack_ix > 0) |
534 | dounwind(0); |
535 | POPBLOCK(cx,curpm); |
536 | LEAVE; |
537 | } |
79072805 |
538 | longjmp(top_env, 2); |
539 | } |
540 | |
a0d0e21e |
541 | SV* |
542 | perl_get_sv(name, create) |
543 | char* name; |
544 | I32 create; |
545 | { |
546 | GV* gv = gv_fetchpv(name, create, SVt_PV); |
547 | if (gv) |
548 | return GvSV(gv); |
549 | return Nullsv; |
550 | } |
551 | |
552 | AV* |
553 | perl_get_av(name, create) |
554 | char* name; |
555 | I32 create; |
556 | { |
557 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); |
558 | if (create) |
559 | return GvAVn(gv); |
560 | if (gv) |
561 | return GvAV(gv); |
562 | return Nullav; |
563 | } |
564 | |
565 | HV* |
566 | perl_get_hv(name, create) |
567 | char* name; |
568 | I32 create; |
569 | { |
570 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); |
571 | if (create) |
572 | return GvHVn(gv); |
573 | if (gv) |
574 | return GvHV(gv); |
575 | return Nullhv; |
576 | } |
577 | |
578 | CV* |
579 | perl_get_cv(name, create) |
580 | char* name; |
581 | I32 create; |
582 | { |
583 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); |
584 | if (create && !GvCV(gv)) |
585 | return newSUB(start_subparse(), |
586 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
587 | Nullop); |
588 | if (gv) |
589 | return GvCV(gv); |
590 | return Nullcv; |
591 | } |
592 | |
79072805 |
593 | /* Be sure to refetch the stack pointer after calling these routines. */ |
594 | |
a0d0e21e |
595 | I32 |
596 | perl_call_argv(subname, flags, argv) |
8990e307 |
597 | char *subname; |
a0d0e21e |
598 | I32 flags; /* See G_* flags in cop.h */ |
599 | register char **argv; /* null terminated arg list */ |
8990e307 |
600 | { |
a0d0e21e |
601 | dSP; |
8990e307 |
602 | |
a0d0e21e |
603 | PUSHMARK(sp); |
604 | if (argv) { |
8990e307 |
605 | while (*argv) { |
a0d0e21e |
606 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 |
607 | argv++; |
608 | } |
a0d0e21e |
609 | PUTBACK; |
8990e307 |
610 | } |
a0d0e21e |
611 | return perl_call_pv(subname, flags); |
8990e307 |
612 | } |
613 | |
a0d0e21e |
614 | I32 |
615 | perl_call_pv(subname, flags) |
616 | char *subname; /* name of the subroutine */ |
617 | I32 flags; /* See G_* flags in cop.h */ |
618 | { |
619 | return perl_call_sv((SV*)perl_get_cv(subname, TRUE), flags); |
620 | } |
621 | |
622 | I32 |
623 | perl_call_method(methname, flags) |
624 | char *methname; /* name of the subroutine */ |
625 | I32 flags; /* See G_* flags in cop.h */ |
626 | { |
627 | dSP; |
628 | OP myop; |
629 | if (!op) |
630 | op = &myop; |
631 | XPUSHs(sv_2mortal(newSVpv(methname,0))); |
632 | PUTBACK; |
633 | pp_method(); |
634 | return perl_call_sv(*stack_sp--, flags); |
635 | } |
636 | |
637 | /* May be called with any of a CV, a GV, or an SV containing the name. */ |
638 | I32 |
639 | perl_call_sv(sv, flags) |
640 | SV* sv; |
641 | I32 flags; /* See G_* flags in cop.h */ |
642 | { |
643 | LOGOP myop; /* fake syntax tree node */ |
644 | SV** sp = stack_sp; |
645 | I32 oldmark = TOPMARK; |
646 | I32 retval; |
647 | jmp_buf oldtop; |
648 | I32 oldscope; |
649 | |
650 | if (flags & G_DISCARD) { |
651 | ENTER; |
652 | SAVETMPS; |
653 | } |
654 | |
655 | SAVESPTR(op); |
656 | op = (OP*)&myop; |
657 | Zero(op, 1, LOGOP); |
658 | EXTEND(stack_sp, 1); |
659 | *++stack_sp = sv; |
660 | oldscope = scopestack_ix; |
661 | |
662 | if (!(flags & G_NOARGS)) |
663 | myop.op_flags = OPf_STACKED; |
664 | myop.op_next = Nullop; |
665 | myop.op_flags |= OPf_KNOW; |
666 | if (flags & G_ARRAY) |
667 | myop.op_flags |= OPf_LIST; |
668 | |
669 | if (flags & G_EVAL) { |
670 | Copy(top_env, oldtop, 1, jmp_buf); |
671 | |
672 | cLOGOP->op_other = op; |
673 | markstack_ptr--; |
674 | pp_entertry(); |
675 | markstack_ptr++; |
676 | |
677 | restart: |
678 | switch (setjmp(top_env)) { |
679 | case 0: |
680 | break; |
681 | case 1: |
748a9306 |
682 | #ifdef VMS |
a0d0e21e |
683 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 |
684 | #else |
685 | statusvalue = 1; |
686 | #endif |
a0d0e21e |
687 | /* FALL THROUGH */ |
688 | case 2: |
689 | /* my_exit() was called */ |
690 | curstash = defstash; |
691 | FREETMPS; |
692 | Copy(oldtop, top_env, 1, jmp_buf); |
693 | if (statusvalue) |
694 | croak("Callback called exit"); |
695 | my_exit(statusvalue); |
696 | /* NOTREACHED */ |
697 | case 3: |
698 | if (restartop) { |
699 | op = restartop; |
700 | restartop = 0; |
701 | goto restart; |
702 | } |
703 | stack_sp = stack_base + oldmark; |
704 | if (flags & G_ARRAY) |
705 | retval = 0; |
706 | else { |
707 | retval = 1; |
708 | *++stack_sp = &sv_undef; |
709 | } |
710 | goto cleanup; |
711 | } |
712 | } |
713 | |
714 | if (op == (OP*)&myop) |
715 | op = pp_entersub(); |
716 | if (op) |
717 | run(); |
718 | retval = stack_sp - (stack_base + oldmark); |
719 | if (flags & G_EVAL) |
720 | sv_setpv(GvSV(gv_fetchpv("@",TRUE, SVt_PV)),""); |
721 | |
722 | cleanup: |
723 | if (flags & G_EVAL) { |
724 | if (scopestack_ix > oldscope) { |
a0a2876f |
725 | SV **newsp; |
726 | PMOP *newpm; |
727 | I32 gimme; |
728 | register CONTEXT *cx; |
729 | I32 optype; |
730 | |
731 | POPBLOCK(cx,newpm); |
732 | POPEVAL(cx); |
733 | pop_return(); |
734 | curpm = newpm; |
735 | LEAVE; |
a0d0e21e |
736 | } |
737 | Copy(oldtop, top_env, 1, jmp_buf); |
738 | } |
739 | if (flags & G_DISCARD) { |
740 | stack_sp = stack_base + oldmark; |
741 | retval = 0; |
742 | FREETMPS; |
743 | LEAVE; |
744 | } |
745 | return retval; |
746 | } |
747 | |
748 | /* Older forms, here grandfathered. */ |
749 | |
750 | #ifdef DEPRECATED |
751 | I32 |
752 | perl_callargv(subname, spix, gimme, argv) |
753 | char *subname; |
754 | register I32 spix; /* current stack pointer index */ |
755 | I32 gimme; /* See G_* flags in cop.h */ |
756 | register char **argv; /* null terminated arg list, NULL for no arglist */ |
757 | { |
758 | stack_sp = stack_base + spix; |
759 | return spix + perl_call_argv(subname, gimme, argv); |
760 | } |
761 | |
762 | I32 |
763 | perl_callpv(subname, spix, gimme, hasargs, numargs) |
79072805 |
764 | char *subname; |
a0d0e21e |
765 | I32 spix; /* stack pointer index after args are pushed */ |
766 | I32 gimme; /* See G_* flags in cop.h */ |
8990e307 |
767 | I32 hasargs; /* whether to create a @_ array for routine */ |
768 | I32 numargs; /* how many args are pushed on the stack */ |
769 | { |
a0d0e21e |
770 | stack_sp = stack_base + spix; |
771 | PUSHMARK(stack_sp - numargs); |
772 | return spix - numargs + perl_call_sv((SV*)perl_get_cv(subname, TRUE), |
773 | gimme, hasargs, numargs); |
8990e307 |
774 | } |
775 | |
a0d0e21e |
776 | I32 |
777 | perl_callsv(sv, spix, gimme, hasargs, numargs) |
8990e307 |
778 | SV* sv; |
a0d0e21e |
779 | I32 spix; /* stack pointer index after args are pushed */ |
780 | I32 gimme; /* See G_* flags in cop.h */ |
79072805 |
781 | I32 hasargs; /* whether to create a @_ array for routine */ |
782 | I32 numargs; /* how many args are pushed on the stack */ |
783 | { |
a0d0e21e |
784 | stack_sp = stack_base + spix; |
785 | PUSHMARK(stack_sp - numargs); |
786 | return spix - numargs + perl_call_sv(sv, gimme, hasargs, numargs); |
787 | } |
788 | #endif |
789 | |
790 | /* Require a module. */ |
791 | |
792 | void |
793 | perl_requirepv(pv) |
794 | char* pv; |
795 | { |
796 | UNOP myop; /* fake syntax tree node */ |
797 | SV* sv; |
798 | dSP; |
79072805 |
799 | |
800 | ENTER; |
463ee0b2 |
801 | SAVETMPS; |
79072805 |
802 | SAVESPTR(op); |
a0d0e21e |
803 | sv = sv_newmortal(); |
804 | sv_setpv(sv, pv); |
79072805 |
805 | op = (OP*)&myop; |
a0d0e21e |
806 | Zero(op, 1, UNOP); |
807 | XPUSHs(sv); |
79072805 |
808 | |
a0d0e21e |
809 | myop.op_type = OP_REQUIRE; |
79072805 |
810 | myop.op_next = Nullop; |
a0d0e21e |
811 | myop.op_private = 1; |
812 | myop.op_flags = OPf_KNOW; |
79072805 |
813 | |
a0d0e21e |
814 | PUTBACK; |
815 | if (op = pp_require()) |
463ee0b2 |
816 | run(); |
a0d0e21e |
817 | stack_sp--; |
818 | FREETMPS; |
79072805 |
819 | LEAVE; |
79072805 |
820 | } |
821 | |
79072805 |
822 | void |
79072805 |
823 | magicname(sym,name,namlen) |
824 | char *sym; |
825 | char *name; |
826 | I32 namlen; |
827 | { |
828 | register GV *gv; |
829 | |
85e6fe83 |
830 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 |
831 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
832 | } |
833 | |
748a9306 |
834 | #if defined(DOSISH) |
835 | # define PERLLIB_SEP ';' |
836 | #elif defined(VMS) |
837 | # define PERLLIB_SEP '|' |
79072805 |
838 | #else |
748a9306 |
839 | # define PERLLIB_SEP ':' |
79072805 |
840 | #endif |
841 | |
842 | static void |
843 | incpush(p) |
844 | char *p; |
845 | { |
846 | char *s; |
847 | |
848 | if (!p) |
849 | return; |
850 | |
851 | /* Break at all separators */ |
852 | while (*p) { |
853 | /* First, skip any consecutive separators */ |
854 | while ( *p == PERLLIB_SEP ) { |
855 | /* Uncomment the next line for PATH semantics */ |
a0d0e21e |
856 | /* av_push(GvAVn(incgv), newSVpv(".", 1)); */ |
79072805 |
857 | p++; |
858 | } |
93a17b20 |
859 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { |
a0d0e21e |
860 | av_push(GvAVn(incgv), newSVpv(p, (STRLEN)(s - p))); |
79072805 |
861 | p = s + 1; |
862 | } else { |
a0d0e21e |
863 | av_push(GvAVn(incgv), newSVpv(p, 0)); |
79072805 |
864 | break; |
865 | } |
866 | } |
867 | } |
868 | |
869 | /* This routine handles any switches that can be given during run */ |
870 | |
871 | char * |
872 | moreswitches(s) |
873 | char *s; |
874 | { |
875 | I32 numlen; |
876 | |
877 | switch (*s) { |
878 | case '0': |
879 | nrschar = scan_oct(s, 4, &numlen); |
a0d0e21e |
880 | nrs = savepvn("\n",1); |
79072805 |
881 | *nrs = nrschar; |
882 | if (nrschar > 0377) { |
883 | nrslen = 0; |
884 | nrs = ""; |
885 | } |
886 | else if (!nrschar && numlen >= 2) { |
887 | nrslen = 2; |
888 | nrs = "\n\n"; |
889 | nrschar = '\n'; |
890 | } |
891 | return s + numlen; |
2304df62 |
892 | case 'F': |
893 | minus_F = TRUE; |
a0d0e21e |
894 | splitstr = savepv(s + 1); |
2304df62 |
895 | s += strlen(s); |
896 | return s; |
79072805 |
897 | case 'a': |
898 | minus_a = TRUE; |
899 | s++; |
900 | return s; |
901 | case 'c': |
902 | minus_c = TRUE; |
903 | s++; |
904 | return s; |
905 | case 'd': |
463ee0b2 |
906 | taint_not("-d"); |
a0d0e21e |
907 | if (!perldb) { |
908 | perldb = TRUE; |
909 | init_debugger(); |
910 | } |
79072805 |
911 | s++; |
912 | return s; |
913 | case 'D': |
914 | #ifdef DEBUGGING |
463ee0b2 |
915 | taint_not("-D"); |
79072805 |
916 | if (isALPHA(s[1])) { |
8990e307 |
917 | static char debopts[] = "psltocPmfrxuLHXD"; |
79072805 |
918 | char *d; |
919 | |
93a17b20 |
920 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
79072805 |
921 | debug |= 1 << (d - debopts); |
922 | } |
923 | else { |
924 | debug = atoi(s+1); |
925 | for (s++; isDIGIT(*s); s++) ; |
926 | } |
8990e307 |
927 | debug |= 0x80000000; |
79072805 |
928 | #else |
929 | warn("Recompile perl with -DDEBUGGING to use -D switch\n"); |
a0d0e21e |
930 | for (s++; isALNUM(*s); s++) ; |
79072805 |
931 | #endif |
932 | /*SUPPRESS 530*/ |
933 | return s; |
934 | case 'i': |
935 | if (inplace) |
936 | Safefree(inplace); |
a0d0e21e |
937 | inplace = savepv(s+1); |
79072805 |
938 | /*SUPPRESS 530*/ |
939 | for (s = inplace; *s && !isSPACE(*s); s++) ; |
940 | *s = '\0'; |
941 | break; |
942 | case 'I': |
463ee0b2 |
943 | taint_not("-I"); |
79072805 |
944 | if (*++s) { |
748a9306 |
945 | char *e; |
946 | for (e = s; *e && !isSPACE(*e); e++) ; |
947 | av_push(GvAVn(incgv),newSVpv(s,e-s)); |
948 | if (*e) |
949 | return e; |
79072805 |
950 | } |
951 | else |
463ee0b2 |
952 | croak("No space allowed after -I"); |
79072805 |
953 | break; |
954 | case 'l': |
955 | minus_l = TRUE; |
956 | s++; |
a0d0e21e |
957 | if (ors) |
958 | Safefree(ors); |
79072805 |
959 | if (isDIGIT(*s)) { |
a0d0e21e |
960 | ors = savepv("\n"); |
79072805 |
961 | orslen = 1; |
962 | *ors = scan_oct(s, 3 + (*s == '0'), &numlen); |
963 | s += numlen; |
964 | } |
965 | else { |
a0d0e21e |
966 | ors = savepvn(nrs,nrslen); |
79072805 |
967 | orslen = nrslen; |
968 | } |
969 | return s; |
970 | case 'n': |
971 | minus_n = TRUE; |
972 | s++; |
973 | return s; |
974 | case 'p': |
975 | minus_p = TRUE; |
976 | s++; |
977 | return s; |
978 | case 's': |
463ee0b2 |
979 | taint_not("-s"); |
79072805 |
980 | doswitches = TRUE; |
981 | s++; |
982 | return s; |
463ee0b2 |
983 | case 'T': |
984 | tainting = TRUE; |
985 | s++; |
986 | return s; |
79072805 |
987 | case 'u': |
988 | do_undump = TRUE; |
989 | s++; |
990 | return s; |
991 | case 'U': |
992 | unsafe = TRUE; |
993 | s++; |
994 | return s; |
995 | case 'v': |
a0d0e21e |
996 | printf("\nThis is perl, version %s\n\n",patchlevel); |
997 | fputs("\nCopyright 1987-1994, Larry Wall\n",stdout); |
79072805 |
998 | #ifdef MSDOS |
999 | fputs("MS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n", |
1000 | stdout); |
1001 | #ifdef OS2 |
1002 | fputs("OS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n", |
1003 | stdout); |
1004 | #endif |
1005 | #endif |
1006 | #ifdef atarist |
1007 | fputs("atariST series port, ++jrb bammi@cadence.com\n", stdout); |
1008 | #endif |
1009 | fputs("\n\ |
1010 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
1011 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n",stdout); |
1012 | #ifdef MSDOS |
1013 | usage(origargv[0]); |
1014 | #endif |
1015 | exit(0); |
1016 | case 'w': |
1017 | dowarn = TRUE; |
1018 | s++; |
1019 | return s; |
a0d0e21e |
1020 | case '*': |
79072805 |
1021 | case ' ': |
1022 | if (s[1] == '-') /* Additional switches on #! line. */ |
1023 | return s+2; |
1024 | break; |
a0d0e21e |
1025 | case '-': |
79072805 |
1026 | case 0: |
1027 | case '\n': |
1028 | case '\t': |
1029 | break; |
a0d0e21e |
1030 | case 'P': |
1031 | if (preprocess) |
1032 | return s+1; |
1033 | /* FALL THROUGH */ |
79072805 |
1034 | default: |
a0d0e21e |
1035 | croak("Can't emulate -%.1s on #! line",s); |
79072805 |
1036 | } |
1037 | return Nullch; |
1038 | } |
1039 | |
1040 | /* compliments of Tom Christiansen */ |
1041 | |
1042 | /* unexec() can be found in the Gnu emacs distribution */ |
1043 | |
1044 | void |
1045 | my_unexec() |
1046 | { |
1047 | #ifdef UNEXEC |
1048 | int status; |
1049 | extern int etext; |
1050 | |
1051 | sprintf (buf, "%s.perldump", origfilename); |
1052 | sprintf (tokenbuf, "%s/perl", BIN); |
1053 | |
1054 | status = unexec(buf, tokenbuf, &etext, sbrk(0), 0); |
1055 | if (status) |
1056 | fprintf(stderr, "unexec of %s into %s failed!\n", tokenbuf, buf); |
a0d0e21e |
1057 | exit(status); |
79072805 |
1058 | #else |
1059 | ABORT(); /* for use with undump */ |
1060 | #endif |
1061 | } |
1062 | |
1063 | static void |
1064 | init_main_stash() |
1065 | { |
463ee0b2 |
1066 | GV *gv; |
1067 | curstash = defstash = newHV(); |
79072805 |
1068 | curstname = newSVpv("main",4); |
adbc6bb1 |
1069 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
1070 | SvREFCNT_dec(GvHV(gv)); |
1071 | GvHV(gv) = (HV*)SvREFCNT_inc(defstash); |
463ee0b2 |
1072 | SvREADONLY_on(gv); |
a0d0e21e |
1073 | HvNAME(defstash) = savepv("main"); |
85e6fe83 |
1074 | incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); |
79072805 |
1075 | SvMULTI_on(incgv); |
a0d0e21e |
1076 | defgv = gv_fetchpv("_",TRUE, SVt_PVAV); |
8990e307 |
1077 | curstash = defstash; |
1078 | compiling.cop_stash = defstash; |
adbc6bb1 |
1079 | debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); |
79072805 |
1080 | } |
1081 | |
a0d0e21e |
1082 | #ifdef CAN_PROTOTYPE |
1083 | static void |
1084 | open_script(char *scriptname, bool dosearch, SV *sv) |
1085 | #else |
79072805 |
1086 | static void |
1087 | open_script(scriptname,dosearch,sv) |
1088 | char *scriptname; |
1089 | bool dosearch; |
1090 | SV *sv; |
a0d0e21e |
1091 | #endif |
79072805 |
1092 | { |
1093 | char *xfound = Nullch; |
1094 | char *xfailed = Nullch; |
1095 | register char *s; |
1096 | I32 len; |
1097 | |
93a17b20 |
1098 | if (dosearch && !strchr(scriptname, '/') && (s = getenv("PATH"))) { |
79072805 |
1099 | |
1100 | bufend = s + strlen(s); |
1101 | while (*s) { |
1102 | #ifndef DOSISH |
1103 | s = cpytill(tokenbuf,s,bufend,':',&len); |
1104 | #else |
1105 | #ifdef atarist |
1106 | for (len = 0; *s && *s != ',' && *s != ';'; tokenbuf[len++] = *s++); |
1107 | tokenbuf[len] = '\0'; |
1108 | #else |
1109 | for (len = 0; *s && *s != ';'; tokenbuf[len++] = *s++); |
1110 | tokenbuf[len] = '\0'; |
1111 | #endif |
1112 | #endif |
1113 | if (*s) |
1114 | s++; |
1115 | #ifndef DOSISH |
1116 | if (len && tokenbuf[len-1] != '/') |
1117 | #else |
1118 | #ifdef atarist |
1119 | if (len && ((tokenbuf[len-1] != '\\') && (tokenbuf[len-1] != '/'))) |
1120 | #else |
1121 | if (len && tokenbuf[len-1] != '\\') |
1122 | #endif |
1123 | #endif |
1124 | (void)strcat(tokenbuf+len,"/"); |
1125 | (void)strcat(tokenbuf+len,scriptname); |
1126 | DEBUG_p(fprintf(stderr,"Looking for %s\n",tokenbuf)); |
a0d0e21e |
1127 | if (Stat(tokenbuf,&statbuf) < 0) /* not there? */ |
79072805 |
1128 | continue; |
1129 | if (S_ISREG(statbuf.st_mode) |
1130 | && cando(S_IRUSR,TRUE,&statbuf) && cando(S_IXUSR,TRUE,&statbuf)) { |
1131 | xfound = tokenbuf; /* bingo! */ |
1132 | break; |
1133 | } |
1134 | if (!xfailed) |
a0d0e21e |
1135 | xfailed = savepv(tokenbuf); |
79072805 |
1136 | } |
1137 | if (!xfound) |
463ee0b2 |
1138 | croak("Can't execute %s", xfailed ? xfailed : scriptname ); |
79072805 |
1139 | if (xfailed) |
1140 | Safefree(xfailed); |
1141 | scriptname = xfound; |
1142 | } |
1143 | |
a0d0e21e |
1144 | origfilename = savepv(e_fp ? "-e" : scriptname); |
79072805 |
1145 | curcop->cop_filegv = gv_fetchfile(origfilename); |
1146 | if (strEQ(origfilename,"-")) |
1147 | scriptname = ""; |
1148 | if (preprocess) { |
1149 | char *cpp = CPPSTDIN; |
1150 | |
1151 | if (strEQ(cpp,"cppstdin")) |
1152 | sprintf(tokenbuf, "%s/%s", SCRIPTDIR, cpp); |
1153 | else |
1154 | sprintf(tokenbuf, "%s", cpp); |
1155 | sv_catpv(sv,"-I"); |
fed7345c |
1156 | sv_catpv(sv,PRIVLIB_EXP); |
79072805 |
1157 | #ifdef MSDOS |
1158 | (void)sprintf(buf, "\ |
1159 | sed %s -e \"/^[^#]/b\" \ |
1160 | -e \"/^#[ ]*include[ ]/b\" \ |
1161 | -e \"/^#[ ]*define[ ]/b\" \ |
1162 | -e \"/^#[ ]*if[ ]/b\" \ |
1163 | -e \"/^#[ ]*ifdef[ ]/b\" \ |
1164 | -e \"/^#[ ]*ifndef[ ]/b\" \ |
1165 | -e \"/^#[ ]*else/b\" \ |
1166 | -e \"/^#[ ]*elif[ ]/b\" \ |
1167 | -e \"/^#[ ]*undef[ ]/b\" \ |
1168 | -e \"/^#[ ]*endif/b\" \ |
1169 | -e \"s/^#.*//\" \ |
1170 | %s | %s -C %s %s", |
1171 | (doextract ? "-e \"1,/^#/d\n\"" : ""), |
1172 | #else |
1173 | (void)sprintf(buf, "\ |
1174 | %s %s -e '/^[^#]/b' \ |
1175 | -e '/^#[ ]*include[ ]/b' \ |
1176 | -e '/^#[ ]*define[ ]/b' \ |
1177 | -e '/^#[ ]*if[ ]/b' \ |
1178 | -e '/^#[ ]*ifdef[ ]/b' \ |
1179 | -e '/^#[ ]*ifndef[ ]/b' \ |
1180 | -e '/^#[ ]*else/b' \ |
1181 | -e '/^#[ ]*elif[ ]/b' \ |
1182 | -e '/^#[ ]*undef[ ]/b' \ |
1183 | -e '/^#[ ]*endif/b' \ |
1184 | -e 's/^[ ]*#.*//' \ |
1185 | %s | %s -C %s %s", |
1186 | #ifdef LOC_SED |
1187 | LOC_SED, |
1188 | #else |
1189 | "sed", |
1190 | #endif |
1191 | (doextract ? "-e '1,/^#/d\n'" : ""), |
1192 | #endif |
463ee0b2 |
1193 | scriptname, tokenbuf, SvPV(sv, na), CPPMINUS); |
79072805 |
1194 | doextract = FALSE; |
1195 | #ifdef IAMSUID /* actually, this is caught earlier */ |
1196 | if (euid != uid && !euid) { /* if running suidperl */ |
1197 | #ifdef HAS_SETEUID |
1198 | (void)seteuid(uid); /* musn't stay setuid root */ |
1199 | #else |
1200 | #ifdef HAS_SETREUID |
85e6fe83 |
1201 | (void)setreuid((Uid_t)-1, uid); |
1202 | #else |
1203 | #ifdef HAS_SETRESUID |
1204 | (void)setresuid((Uid_t)-1, uid, (Uid_t)-1); |
79072805 |
1205 | #else |
1206 | setuid(uid); |
1207 | #endif |
1208 | #endif |
85e6fe83 |
1209 | #endif |
79072805 |
1210 | if (geteuid() != uid) |
463ee0b2 |
1211 | croak("Can't do seteuid!\n"); |
79072805 |
1212 | } |
1213 | #endif /* IAMSUID */ |
1214 | rsfp = my_popen(buf,"r"); |
1215 | } |
1216 | else if (!*scriptname) { |
463ee0b2 |
1217 | taint_not("program input from stdin"); |
79072805 |
1218 | rsfp = stdin; |
1219 | } |
1220 | else |
1221 | rsfp = fopen(scriptname,"r"); |
45d8adaa |
1222 | if ((FILE*)rsfp == Nullfp) { |
13281fa4 |
1223 | #ifdef DOSUID |
a687059c |
1224 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
a0d0e21e |
1225 | if (euid && Stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 && |
13281fa4 |
1226 | statbuf.st_mode & (S_ISUID|S_ISGID)) { |
27e2fb84 |
1227 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c |
1228 | execv(buf, origargv); /* try again */ |
463ee0b2 |
1229 | croak("Can't do setuid\n"); |
13281fa4 |
1230 | } |
1231 | #endif |
1232 | #endif |
463ee0b2 |
1233 | croak("Can't open perl script \"%s\": %s\n", |
2304df62 |
1234 | SvPVX(GvSV(curcop->cop_filegv)), Strerror(errno)); |
13281fa4 |
1235 | } |
79072805 |
1236 | } |
8d063cd8 |
1237 | |
79072805 |
1238 | static void |
1239 | validate_suid(validarg) |
1240 | char *validarg; |
1241 | { |
13281fa4 |
1242 | /* do we need to emulate setuid on scripts? */ |
1243 | |
1244 | /* This code is for those BSD systems that have setuid #! scripts disabled |
1245 | * in the kernel because of a security problem. Merely defining DOSUID |
1246 | * in perl will not fix that problem, but if you have disabled setuid |
1247 | * scripts in the kernel, this will attempt to emulate setuid and setgid |
1248 | * on scripts that have those now-otherwise-useless bits set. The setuid |
27e2fb84 |
1249 | * root version must be called suidperl or sperlN.NNN. If regular perl |
1250 | * discovers that it has opened a setuid script, it calls suidperl with |
1251 | * the same argv that it had. If suidperl finds that the script it has |
1252 | * just opened is NOT setuid root, it sets the effective uid back to the |
1253 | * uid. We don't just make perl setuid root because that loses the |
1254 | * effective uid we had before invoking perl, if it was different from the |
1255 | * uid. |
13281fa4 |
1256 | * |
1257 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must |
1258 | * be defined in suidperl only. suidperl must be setuid root. The |
1259 | * Configure script will set this up for you if you want it. |
1260 | */ |
a687059c |
1261 | |
13281fa4 |
1262 | #ifdef DOSUID |
a0d0e21e |
1263 | char *s; |
1264 | |
1265 | if (Fstat(fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */ |
463ee0b2 |
1266 | croak("Can't stat script \"%s\"",origfilename); |
13281fa4 |
1267 | if (statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 |
1268 | I32 len; |
13281fa4 |
1269 | |
a687059c |
1270 | #ifdef IAMSUID |
fe14fcc3 |
1271 | #ifndef HAS_SETREUID |
a687059c |
1272 | /* On this access check to make sure the directories are readable, |
1273 | * there is actually a small window that the user could use to make |
1274 | * filename point to an accessible directory. So there is a faint |
1275 | * chance that someone could execute a setuid script down in a |
1276 | * non-accessible directory. I don't know what to do about that. |
1277 | * But I don't think it's too important. The manual lies when |
1278 | * it says access() is useful in setuid programs. |
1279 | */ |
463ee0b2 |
1280 | if (access(SvPVX(GvSV(curcop->cop_filegv)),1)) /*double check*/ |
1281 | croak("Permission denied"); |
a687059c |
1282 | #else |
1283 | /* If we can swap euid and uid, then we can determine access rights |
1284 | * with a simple stat of the file, and then compare device and |
1285 | * inode to make sure we did stat() on the same file we opened. |
1286 | * Then we just have to make sure he or she can execute it. |
1287 | */ |
1288 | { |
1289 | struct stat tmpstatbuf; |
1290 | |
85e6fe83 |
1291 | if ( |
1292 | #ifdef HAS_SETREUID |
1293 | setreuid(euid,uid) < 0 |
a0d0e21e |
1294 | #else |
1295 | # if HAS_SETRESUID |
85e6fe83 |
1296 | setresuid(euid,uid,(Uid_t)-1) < 0 |
a0d0e21e |
1297 | # endif |
85e6fe83 |
1298 | #endif |
1299 | || getuid() != euid || geteuid() != uid) |
463ee0b2 |
1300 | croak("Can't swap uid and euid"); /* really paranoid */ |
a0d0e21e |
1301 | if (Stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0) |
463ee0b2 |
1302 | croak("Permission denied"); /* testing full pathname here */ |
a687059c |
1303 | if (tmpstatbuf.st_dev != statbuf.st_dev || |
1304 | tmpstatbuf.st_ino != statbuf.st_ino) { |
1305 | (void)fclose(rsfp); |
79072805 |
1306 | if (rsfp = my_popen("/bin/mail root","w")) { /* heh, heh */ |
a687059c |
1307 | fprintf(rsfp, |
1308 | "User %d tried to run dev %d ino %d in place of dev %d ino %d!\n\ |
1309 | (Filename of set-id script was %s, uid %d gid %d.)\n\nSincerely,\nperl\n", |
1310 | uid,tmpstatbuf.st_dev, tmpstatbuf.st_ino, |
1311 | statbuf.st_dev, statbuf.st_ino, |
463ee0b2 |
1312 | SvPVX(GvSV(curcop->cop_filegv)), |
20188a90 |
1313 | statbuf.st_uid, statbuf.st_gid); |
79072805 |
1314 | (void)my_pclose(rsfp); |
a687059c |
1315 | } |
463ee0b2 |
1316 | croak("Permission denied\n"); |
a687059c |
1317 | } |
85e6fe83 |
1318 | if ( |
1319 | #ifdef HAS_SETREUID |
1320 | setreuid(uid,euid) < 0 |
a0d0e21e |
1321 | #else |
1322 | # if defined(HAS_SETRESUID) |
85e6fe83 |
1323 | setresuid(uid,euid,(Uid_t)-1) < 0 |
a0d0e21e |
1324 | # endif |
85e6fe83 |
1325 | #endif |
1326 | || getuid() != uid || geteuid() != euid) |
463ee0b2 |
1327 | croak("Can't reswap uid and euid"); |
27e2fb84 |
1328 | if (!cando(S_IXUSR,FALSE,&statbuf)) /* can real uid exec? */ |
463ee0b2 |
1329 | croak("Permission denied\n"); |
a687059c |
1330 | } |
fe14fcc3 |
1331 | #endif /* HAS_SETREUID */ |
a687059c |
1332 | #endif /* IAMSUID */ |
1333 | |
27e2fb84 |
1334 | if (!S_ISREG(statbuf.st_mode)) |
463ee0b2 |
1335 | croak("Permission denied"); |
27e2fb84 |
1336 | if (statbuf.st_mode & S_IWOTH) |
463ee0b2 |
1337 | croak("Setuid/gid script is writable by world"); |
13281fa4 |
1338 | doswitches = FALSE; /* -s is insecure in suid */ |
79072805 |
1339 | curcop->cop_line++; |
13281fa4 |
1340 | if (fgets(tokenbuf,sizeof tokenbuf, rsfp) == Nullch || |
1341 | strnNE(tokenbuf,"#!",2) ) /* required even on Sys V */ |
463ee0b2 |
1342 | croak("No #! line"); |
663a0e37 |
1343 | s = tokenbuf+2; |
1344 | if (*s == ' ') s++; |
45d8adaa |
1345 | while (!isSPACE(*s)) s++; |
27e2fb84 |
1346 | if (strnNE(s-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ |
463ee0b2 |
1347 | croak("Not a perl script"); |
a687059c |
1348 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 |
1349 | /* |
1350 | * #! arg must be what we saw above. They can invoke it by |
1351 | * mentioning suidperl explicitly, but they may not add any strange |
1352 | * arguments beyond what #! says if they do invoke suidperl that way. |
1353 | */ |
1354 | len = strlen(validarg); |
1355 | if (strEQ(validarg," PHOOEY ") || |
45d8adaa |
1356 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
463ee0b2 |
1357 | croak("Args must match #! line"); |
a687059c |
1358 | |
1359 | #ifndef IAMSUID |
1360 | if (euid != uid && (statbuf.st_mode & S_ISUID) && |
1361 | euid == statbuf.st_uid) |
1362 | if (!do_undump) |
463ee0b2 |
1363 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c |
1364 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1365 | #endif /* IAMSUID */ |
13281fa4 |
1366 | |
1367 | if (euid) { /* oops, we're not the setuid root perl */ |
a687059c |
1368 | (void)fclose(rsfp); |
13281fa4 |
1369 | #ifndef IAMSUID |
27e2fb84 |
1370 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c |
1371 | execv(buf, origargv); /* try again */ |
13281fa4 |
1372 | #endif |
463ee0b2 |
1373 | croak("Can't do setuid\n"); |
13281fa4 |
1374 | } |
1375 | |
83025b21 |
1376 | if (statbuf.st_mode & S_ISGID && statbuf.st_gid != egid) { |
fe14fcc3 |
1377 | #ifdef HAS_SETEGID |
a687059c |
1378 | (void)setegid(statbuf.st_gid); |
1379 | #else |
fe14fcc3 |
1380 | #ifdef HAS_SETREGID |
85e6fe83 |
1381 | (void)setregid((Gid_t)-1,statbuf.st_gid); |
1382 | #else |
1383 | #ifdef HAS_SETRESGID |
1384 | (void)setresgid((Gid_t)-1,statbuf.st_gid,(Gid_t)-1); |
a687059c |
1385 | #else |
1386 | setgid(statbuf.st_gid); |
1387 | #endif |
1388 | #endif |
85e6fe83 |
1389 | #endif |
83025b21 |
1390 | if (getegid() != statbuf.st_gid) |
463ee0b2 |
1391 | croak("Can't do setegid!\n"); |
83025b21 |
1392 | } |
a687059c |
1393 | if (statbuf.st_mode & S_ISUID) { |
1394 | if (statbuf.st_uid != euid) |
fe14fcc3 |
1395 | #ifdef HAS_SETEUID |
a687059c |
1396 | (void)seteuid(statbuf.st_uid); /* all that for this */ |
1397 | #else |
fe14fcc3 |
1398 | #ifdef HAS_SETREUID |
85e6fe83 |
1399 | (void)setreuid((Uid_t)-1,statbuf.st_uid); |
1400 | #else |
1401 | #ifdef HAS_SETRESUID |
1402 | (void)setresuid((Uid_t)-1,statbuf.st_uid,(Uid_t)-1); |
a687059c |
1403 | #else |
1404 | setuid(statbuf.st_uid); |
1405 | #endif |
1406 | #endif |
85e6fe83 |
1407 | #endif |
83025b21 |
1408 | if (geteuid() != statbuf.st_uid) |
463ee0b2 |
1409 | croak("Can't do seteuid!\n"); |
a687059c |
1410 | } |
83025b21 |
1411 | else if (uid) { /* oops, mustn't run as root */ |
fe14fcc3 |
1412 | #ifdef HAS_SETEUID |
85e6fe83 |
1413 | (void)seteuid((Uid_t)uid); |
a687059c |
1414 | #else |
fe14fcc3 |
1415 | #ifdef HAS_SETREUID |
85e6fe83 |
1416 | (void)setreuid((Uid_t)-1,(Uid_t)uid); |
a687059c |
1417 | #else |
85e6fe83 |
1418 | #ifdef HAS_SETRESUID |
1419 | (void)setresuid((Uid_t)-1,(Uid_t)uid,(Uid_t)-1); |
1420 | #else |
1421 | setuid((Uid_t)uid); |
1422 | #endif |
a687059c |
1423 | #endif |
1424 | #endif |
83025b21 |
1425 | if (geteuid() != uid) |
463ee0b2 |
1426 | croak("Can't do seteuid!\n"); |
83025b21 |
1427 | } |
748a9306 |
1428 | init_ids(); |
27e2fb84 |
1429 | if (!cando(S_IXUSR,TRUE,&statbuf)) |
463ee0b2 |
1430 | croak("Permission denied\n"); /* they can't do this */ |
13281fa4 |
1431 | } |
1432 | #ifdef IAMSUID |
1433 | else if (preprocess) |
463ee0b2 |
1434 | croak("-P not allowed for setuid/setgid script\n"); |
13281fa4 |
1435 | else |
463ee0b2 |
1436 | croak("Script is not setuid/setgid in suidperl\n"); |
13281fa4 |
1437 | #endif /* IAMSUID */ |
a687059c |
1438 | #else /* !DOSUID */ |
a687059c |
1439 | if (euid != uid || egid != gid) { /* (suidperl doesn't exist, in fact) */ |
1440 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW |
a0d0e21e |
1441 | Fstat(fileno(rsfp),&statbuf); /* may be either wrapped or real suid */ |
a687059c |
1442 | if ((euid != uid && euid == statbuf.st_uid && statbuf.st_mode & S_ISUID) |
1443 | || |
1444 | (egid != gid && egid == statbuf.st_gid && statbuf.st_mode & S_ISGID) |
1445 | ) |
1446 | if (!do_undump) |
463ee0b2 |
1447 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c |
1448 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1449 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ |
1450 | /* not set-id, must be wrapped */ |
a687059c |
1451 | } |
13281fa4 |
1452 | #endif /* DOSUID */ |
79072805 |
1453 | } |
13281fa4 |
1454 | |
79072805 |
1455 | static void |
1456 | find_beginning() |
1457 | { |
79072805 |
1458 | register char *s; |
33b78306 |
1459 | |
1460 | /* skip forward in input to the real script? */ |
1461 | |
463ee0b2 |
1462 | taint_not("-x"); |
33b78306 |
1463 | while (doextract) { |
79072805 |
1464 | if ((s = sv_gets(linestr, rsfp, 0)) == Nullch) |
463ee0b2 |
1465 | croak("No Perl script found in input\n"); |
33b78306 |
1466 | if (*s == '#' && s[1] == '!' && instr(s,"perl")) { |
1467 | ungetc('\n',rsfp); /* to keep line count right */ |
1468 | doextract = FALSE; |
1469 | if (s = instr(s,"perl -")) { |
1470 | s += 6; |
45d8adaa |
1471 | /*SUPPRESS 530*/ |
33b78306 |
1472 | while (s = moreswitches(s)) ; |
1473 | } |
79072805 |
1474 | if (cddir && chdir(cddir) < 0) |
463ee0b2 |
1475 | croak("Can't chdir to %s",cddir); |
83025b21 |
1476 | } |
1477 | } |
1478 | } |
1479 | |
79072805 |
1480 | static void |
748a9306 |
1481 | init_ids() |
352d5a3a |
1482 | { |
748a9306 |
1483 | uid = (int)getuid(); |
1484 | euid = (int)geteuid(); |
1485 | gid = (int)getgid(); |
1486 | egid = (int)getegid(); |
1487 | #ifdef VMS |
1488 | uid |= gid << 16; |
1489 | euid |= egid << 16; |
1490 | #endif |
1491 | tainting |= (euid != uid || egid != gid); |
1492 | } |
79072805 |
1493 | |
748a9306 |
1494 | static void |
1495 | init_debugger() |
1496 | { |
79072805 |
1497 | curstash = debstash; |
748a9306 |
1498 | dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); |
79072805 |
1499 | AvREAL_off(dbargs); |
a0d0e21e |
1500 | DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); |
1501 | DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); |
748a9306 |
1502 | DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); |
1503 | DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); |
1504 | DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); |
1505 | DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); |
79072805 |
1506 | curstash = defstash; |
352d5a3a |
1507 | } |
1508 | |
79072805 |
1509 | static void |
8990e307 |
1510 | init_stacks() |
79072805 |
1511 | { |
1512 | stack = newAV(); |
1513 | mainstack = stack; /* remember in case we switch stacks */ |
1514 | AvREAL_off(stack); /* not a real array */ |
a0d0e21e |
1515 | av_extend(stack,127); |
79072805 |
1516 | |
1517 | stack_base = AvARRAY(stack); |
1518 | stack_sp = stack_base; |
8990e307 |
1519 | stack_max = stack_base + 127; |
79072805 |
1520 | |
a0d0e21e |
1521 | New(54,markstack,64,I32); |
79072805 |
1522 | markstack_ptr = markstack; |
1523 | markstack_max = markstack + 64; |
1524 | |
a0d0e21e |
1525 | New(54,scopestack,32,I32); |
79072805 |
1526 | scopestack_ix = 0; |
1527 | scopestack_max = 32; |
1528 | |
1529 | New(54,savestack,128,ANY); |
1530 | savestack_ix = 0; |
1531 | savestack_max = 128; |
1532 | |
1533 | New(54,retstack,16,OP*); |
1534 | retstack_ix = 0; |
1535 | retstack_max = 16; |
8d063cd8 |
1536 | |
79072805 |
1537 | New(50,cxstack,128,CONTEXT); |
8990e307 |
1538 | cxstack_ix = -1; |
1539 | cxstack_max = 128; |
1540 | |
1541 | New(50,tmps_stack,128,SV*); |
1542 | tmps_ix = -1; |
1543 | tmps_max = 128; |
1544 | |
79072805 |
1545 | DEBUG( { |
1546 | New(51,debname,128,char); |
1547 | New(52,debdelim,128,char); |
1548 | } ) |
378cc40b |
1549 | } |
33b78306 |
1550 | |
a0d0e21e |
1551 | static FILE *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
79072805 |
1552 | static void |
8990e307 |
1553 | init_lexer() |
1554 | { |
a0d0e21e |
1555 | tmpfp = rsfp; |
8990e307 |
1556 | |
1557 | lex_start(linestr); |
1558 | rsfp = tmpfp; |
1559 | subname = newSVpv("main",4); |
1560 | } |
1561 | |
1562 | static void |
79072805 |
1563 | init_predump_symbols() |
45d8adaa |
1564 | { |
93a17b20 |
1565 | GV *tmpgv; |
a0d0e21e |
1566 | GV *othergv; |
79072805 |
1567 | |
85e6fe83 |
1568 | sv_setpvn(GvSV(gv_fetchpv("\"", TRUE, SVt_PV)), " ", 1); |
79072805 |
1569 | |
85e6fe83 |
1570 | stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
79072805 |
1571 | SvMULTI_on(stdingv); |
a0d0e21e |
1572 | IoIFP(GvIOp(stdingv)) = stdin; |
adbc6bb1 |
1573 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a0d0e21e |
1574 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(stdingv)); |
79072805 |
1575 | SvMULTI_on(tmpgv); |
1576 | |
85e6fe83 |
1577 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
79072805 |
1578 | SvMULTI_on(tmpgv); |
a0d0e21e |
1579 | IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = stdout; |
79072805 |
1580 | defoutgv = tmpgv; |
adbc6bb1 |
1581 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a0d0e21e |
1582 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(defoutgv)); |
79072805 |
1583 | SvMULTI_on(tmpgv); |
1584 | |
a0d0e21e |
1585 | othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
1586 | SvMULTI_on(othergv); |
1587 | IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = stderr; |
adbc6bb1 |
1588 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a0d0e21e |
1589 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv)); |
79072805 |
1590 | SvMULTI_on(tmpgv); |
79072805 |
1591 | |
1592 | statname = NEWSV(66,0); /* last filename we did stat on */ |
79072805 |
1593 | } |
33b78306 |
1594 | |
79072805 |
1595 | static void |
1596 | init_postdump_symbols(argc,argv,env) |
1597 | register int argc; |
1598 | register char **argv; |
1599 | register char **env; |
33b78306 |
1600 | { |
79072805 |
1601 | char *s; |
1602 | SV *sv; |
1603 | GV* tmpgv; |
fe14fcc3 |
1604 | |
79072805 |
1605 | argc--,argv++; /* skip name of script */ |
1606 | if (doswitches) { |
1607 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
1608 | if (!argv[0][1]) |
1609 | break; |
1610 | if (argv[0][1] == '-') { |
1611 | argc--,argv++; |
1612 | break; |
1613 | } |
93a17b20 |
1614 | if (s = strchr(argv[0], '=')) { |
79072805 |
1615 | *s++ = '\0'; |
85e6fe83 |
1616 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 |
1617 | } |
1618 | else |
85e6fe83 |
1619 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 |
1620 | } |
79072805 |
1621 | } |
1622 | toptarget = NEWSV(0,0); |
1623 | sv_upgrade(toptarget, SVt_PVFM); |
1624 | sv_setpvn(toptarget, "", 0); |
748a9306 |
1625 | bodytarget = NEWSV(0,0); |
79072805 |
1626 | sv_upgrade(bodytarget, SVt_PVFM); |
1627 | sv_setpvn(bodytarget, "", 0); |
1628 | formtarget = bodytarget; |
1629 | |
79072805 |
1630 | tainted = 1; |
85e6fe83 |
1631 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
79072805 |
1632 | sv_setpv(GvSV(tmpgv),origfilename); |
1633 | magicname("0", "0", 1); |
1634 | } |
85e6fe83 |
1635 | if (tmpgv = gv_fetchpv("\024",TRUE, SVt_PV)) |
79072805 |
1636 | time(&basetime); |
85e6fe83 |
1637 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
79072805 |
1638 | sv_setpv(GvSV(tmpgv),origargv[0]); |
85e6fe83 |
1639 | if (argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { |
79072805 |
1640 | SvMULTI_on(argvgv); |
1641 | (void)gv_AVadd(argvgv); |
1642 | av_clear(GvAVn(argvgv)); |
1643 | for (; argc > 0; argc--,argv++) { |
a0d0e21e |
1644 | av_push(GvAVn(argvgv),newSVpv(argv[0],0)); |
79072805 |
1645 | } |
1646 | } |
85e6fe83 |
1647 | if (envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 |
1648 | HV *hv; |
1649 | SvMULTI_on(envgv); |
1650 | hv = GvHVn(envgv); |
463ee0b2 |
1651 | hv_clear(hv); |
a0d0e21e |
1652 | #ifndef VMS /* VMS doesn't have environ array */ |
8990e307 |
1653 | if (env != environ) { |
79072805 |
1654 | environ[0] = Nullch; |
8990e307 |
1655 | hv_magic(hv, envgv, 'E'); |
1656 | } |
a0d0e21e |
1657 | #endif |
1658 | #ifdef DYNAMIC_ENV_FETCH |
1659 | HvNAME(hv) = savepv(ENV_HV_NAME); |
1660 | #endif |
79072805 |
1661 | for (; *env; env++) { |
93a17b20 |
1662 | if (!(s = strchr(*env,'='))) |
79072805 |
1663 | continue; |
1664 | *s++ = '\0'; |
1665 | sv = newSVpv(s--,0); |
85e6fe83 |
1666 | sv_magic(sv, sv, 'e', *env, s - *env); |
79072805 |
1667 | (void)hv_store(hv, *env, s - *env, sv, 0); |
1668 | *s = '='; |
fe14fcc3 |
1669 | } |
f511e57f |
1670 | hv_magic(hv, envgv, 'E'); |
79072805 |
1671 | } |
79072805 |
1672 | tainted = 0; |
85e6fe83 |
1673 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
79072805 |
1674 | sv_setiv(GvSV(tmpgv),(I32)getpid()); |
1675 | |
33b78306 |
1676 | } |
34de22dd |
1677 | |
79072805 |
1678 | static void |
1679 | init_perllib() |
34de22dd |
1680 | { |
85e6fe83 |
1681 | char *s; |
1682 | if (!tainting) { |
1683 | s = getenv("PERL5LIB"); |
1684 | if (s) |
1685 | incpush(s); |
1686 | else |
1687 | incpush(getenv("PERLLIB")); |
1688 | } |
34de22dd |
1689 | |
fed7345c |
1690 | #ifdef ARCHLIB_EXP |
1691 | incpush(ARCHLIB_EXP); |
a0d0e21e |
1692 | #endif |
fed7345c |
1693 | #ifndef PRIVLIB_EXP |
1694 | #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" |
34de22dd |
1695 | #endif |
fed7345c |
1696 | incpush(PRIVLIB_EXP); |
a0d0e21e |
1697 | |
1698 | av_push(GvAVn(incgv),newSVpv(".",1)); |
34de22dd |
1699 | } |
93a17b20 |
1700 | |
1701 | void |
1702 | calllist(list) |
1703 | AV* list; |
1704 | { |
93a17b20 |
1705 | jmp_buf oldtop; |
a0d0e21e |
1706 | STRLEN len; |
1707 | line_t oldline = curcop->cop_line; |
93a17b20 |
1708 | |
93a17b20 |
1709 | Copy(top_env, oldtop, 1, jmp_buf); |
1710 | |
8990e307 |
1711 | while (AvFILL(list) >= 0) { |
1712 | CV *cv = (CV*)av_shift(list); |
93a17b20 |
1713 | |
8990e307 |
1714 | SAVEFREESV(cv); |
a0d0e21e |
1715 | |
85e6fe83 |
1716 | switch (setjmp(top_env)) { |
748a9306 |
1717 | case 0: { |
1718 | SV* atsv = GvSV(gv_fetchpv("@",TRUE, SVt_PV)); |
1719 | PUSHMARK(stack_sp); |
1720 | perl_call_sv((SV*)cv, G_EVAL|G_DISCARD); |
1721 | (void)SvPV(atsv, len); |
1722 | if (len) { |
1723 | Copy(oldtop, top_env, 1, jmp_buf); |
1724 | curcop = &compiling; |
1725 | curcop->cop_line = oldline; |
1726 | if (list == beginav) |
1727 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); |
1728 | else |
1729 | sv_catpv(atsv, "END failed--cleanup aborted"); |
1730 | croak("%s", SvPVX(atsv)); |
1731 | } |
a0d0e21e |
1732 | } |
85e6fe83 |
1733 | break; |
1734 | case 1: |
748a9306 |
1735 | #ifdef VMS |
85e6fe83 |
1736 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 |
1737 | #else |
1738 | statusvalue = 1; |
1739 | #endif |
85e6fe83 |
1740 | /* FALL THROUGH */ |
1741 | case 2: |
1742 | /* my_exit() was called */ |
1743 | curstash = defstash; |
1744 | if (endav) |
1745 | calllist(endav); |
a0d0e21e |
1746 | FREETMPS; |
1747 | Copy(oldtop, top_env, 1, jmp_buf); |
1748 | curcop = &compiling; |
1749 | curcop->cop_line = oldline; |
85e6fe83 |
1750 | if (statusvalue) { |
1751 | if (list == beginav) |
a0d0e21e |
1752 | croak("BEGIN failed--compilation aborted"); |
85e6fe83 |
1753 | else |
a0d0e21e |
1754 | croak("END failed--cleanup aborted"); |
85e6fe83 |
1755 | } |
85e6fe83 |
1756 | my_exit(statusvalue); |
1757 | /* NOTREACHED */ |
1758 | return; |
1759 | case 3: |
1760 | if (!restartop) { |
1761 | fprintf(stderr, "panic: restartop\n"); |
a0d0e21e |
1762 | FREETMPS; |
85e6fe83 |
1763 | break; |
1764 | } |
a0d0e21e |
1765 | Copy(oldtop, top_env, 1, jmp_buf); |
1766 | curcop = &compiling; |
1767 | curcop->cop_line = oldline; |
1768 | longjmp(top_env, 3); |
8990e307 |
1769 | } |
93a17b20 |
1770 | } |
1771 | |
1772 | Copy(oldtop, top_env, 1, jmp_buf); |
1773 | } |
1774 | |