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 *)); |
40 | static void init_debugger _((void)); |
41 | static void init_lexer _((void)); |
42 | static void init_main_stash _((void)); |
43 | static void init_perllib _((void)); |
44 | static void init_postdump_symbols _((int, char **, char **)); |
45 | static void init_predump_symbols _((void)); |
46 | static void init_stacks _((void)); |
47 | static void open_script _((char *, bool, SV *)); |
48 | static void validate_suid _((char *)); |
79072805 |
49 | |
93a17b20 |
50 | PerlInterpreter * |
79072805 |
51 | perl_alloc() |
52 | { |
93a17b20 |
53 | PerlInterpreter *sv_interp; |
79072805 |
54 | |
8990e307 |
55 | curinterp = 0; |
93a17b20 |
56 | New(53, sv_interp, 1, PerlInterpreter); |
79072805 |
57 | return sv_interp; |
58 | } |
59 | |
60 | void |
61 | perl_construct( sv_interp ) |
93a17b20 |
62 | register PerlInterpreter *sv_interp; |
79072805 |
63 | { |
2304df62 |
64 | char* s; |
65 | |
79072805 |
66 | if (!(curinterp = sv_interp)) |
67 | return; |
68 | |
8990e307 |
69 | #ifdef MULTIPLICITY |
93a17b20 |
70 | Zero(sv_interp, 1, PerlInterpreter); |
8990e307 |
71 | #endif |
79072805 |
72 | |
73 | /* Init the real globals? */ |
74 | if (!linestr) { |
75 | linestr = NEWSV(65,80); |
ed6116ce |
76 | sv_upgrade(linestr,SVt_PVIV); |
79072805 |
77 | |
78 | SvREADONLY_on(&sv_undef); |
79 | |
80 | sv_setpv(&sv_no,No); |
463ee0b2 |
81 | SvNV(&sv_no); |
79072805 |
82 | SvREADONLY_on(&sv_no); |
83 | |
84 | sv_setpv(&sv_yes,Yes); |
463ee0b2 |
85 | SvNV(&sv_yes); |
79072805 |
86 | SvREADONLY_on(&sv_yes); |
87 | |
88 | #ifdef MSDOS |
89 | /* |
90 | * There is no way we can refer to them from Perl so close them to save |
91 | * space. The other alternative would be to provide STDAUX and STDPRN |
92 | * filehandles. |
93 | */ |
94 | (void)fclose(stdaux); |
95 | (void)fclose(stdprn); |
96 | #endif |
97 | } |
98 | |
8990e307 |
99 | #ifdef MULTIPLICITY |
79072805 |
100 | chopset = " \n-"; |
463ee0b2 |
101 | copline = NOLINE; |
79072805 |
102 | curcop = &compiling; |
79072805 |
103 | dlmax = 128; |
104 | laststatval = -1; |
105 | laststype = OP_STAT; |
106 | maxscream = -1; |
107 | maxsysfd = MAXSYSFD; |
108 | nrs = "\n"; |
109 | nrschar = '\n'; |
110 | nrslen = 1; |
111 | rs = "\n"; |
112 | rschar = '\n'; |
113 | rsfp = Nullfp; |
114 | rslen = 1; |
463ee0b2 |
115 | statname = Nullsv; |
79072805 |
116 | tmps_floor = -1; |
79072805 |
117 | #endif |
118 | |
119 | uid = (int)getuid(); |
120 | euid = (int)geteuid(); |
121 | gid = (int)getgid(); |
122 | egid = (int)getegid(); |
a0d0e21e |
123 | #ifdef VMS |
124 | uid |= gid << 16; |
125 | euid |= egid << 16; |
126 | #endif |
463ee0b2 |
127 | tainting = (euid != uid || egid != gid); |
a0d0e21e |
128 | sprintf(patchlevel, "%5.3f", 5.0 + (PATCHLEVEL / 1000.0)); |
79072805 |
129 | |
130 | fdpid = newAV(); /* for remembering popen pids by fd */ |
463ee0b2 |
131 | pidstatus = newHV();/* for remembering status of dead pids */ |
8990e307 |
132 | |
133 | init_stacks(); |
134 | ENTER; |
79072805 |
135 | } |
136 | |
137 | void |
a0d0e21e |
138 | perl_destruct(sv_interp, destruct_level) |
93a17b20 |
139 | register PerlInterpreter *sv_interp; |
a0d0e21e |
140 | int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
79072805 |
141 | { |
8990e307 |
142 | I32 last_sv_count; |
a0d0e21e |
143 | HV *hv; |
8990e307 |
144 | |
79072805 |
145 | if (!(curinterp = sv_interp)) |
146 | return; |
8990e307 |
147 | LEAVE; |
a0d0e21e |
148 | FREETMPS; |
149 | |
150 | if (sv_objcount) { |
151 | /* We must account for everything. First the syntax tree. */ |
152 | if (main_root) { |
153 | curpad = AvARRAY(comppad); |
154 | op_free(main_root); |
155 | main_root = 0; |
156 | } |
157 | } |
158 | if (sv_objcount) { |
159 | /* |
160 | * Try to destruct global references. We do this first so that the |
161 | * destructors and destructees still exist. Some sv's might remain. |
162 | * Non-referenced objects are on their own. |
163 | */ |
164 | |
165 | dirty = TRUE; |
166 | sv_clean_objs(); |
8990e307 |
167 | } |
168 | |
a0d0e21e |
169 | if (destruct_level == 0){ |
8990e307 |
170 | |
a0d0e21e |
171 | DEBUG_P(debprofdump()); |
172 | |
173 | /* The exit() function will do everything that needs doing. */ |
174 | return; |
175 | } |
176 | |
177 | /* Prepare to destruct main symbol table. */ |
178 | hv = defstash; |
85e6fe83 |
179 | defstash = 0; |
a0d0e21e |
180 | SvREFCNT_dec(hv); |
181 | |
182 | FREETMPS; |
183 | if (destruct_level >= 2) { |
184 | if (scopestack_ix != 0) |
185 | warn("Unbalanced scopes: %d more ENTERs than LEAVEs\n", scopestack_ix); |
186 | if (savestack_ix != 0) |
187 | warn("Unbalanced saves: %d more saves than restores\n", savestack_ix); |
188 | if (tmps_floor != -1) |
189 | warn("Unbalanced tmps: %d more allocs than frees\n", tmps_floor + 1); |
190 | if (cxstack_ix != -1) |
191 | warn("Unbalanced context: %d more PUSHes than POPs\n", cxstack_ix + 1); |
192 | } |
8990e307 |
193 | |
194 | /* Now absolutely destruct everything, somehow or other, loops or no. */ |
8990e307 |
195 | last_sv_count = 0; |
196 | while (sv_count != 0 && sv_count != last_sv_count) { |
197 | last_sv_count = sv_count; |
198 | sv_clean_all(); |
199 | } |
200 | if (sv_count != 0) |
201 | warn("Scalars leaked: %d\n", sv_count); |
a0d0e21e |
202 | |
203 | DEBUG_P(debprofdump()); |
79072805 |
204 | } |
205 | |
206 | void |
207 | perl_free(sv_interp) |
93a17b20 |
208 | PerlInterpreter *sv_interp; |
79072805 |
209 | { |
210 | if (!(curinterp = sv_interp)) |
211 | return; |
212 | Safefree(sv_interp); |
213 | } |
a0d0e21e |
214 | #ifndef STANDARD_C |
215 | char *getenv _((char *)); /* Usually in <stdlib.h> */ |
216 | #endif |
79072805 |
217 | |
218 | int |
a0d0e21e |
219 | perl_parse(sv_interp, xsinit, argc, argv, env) |
93a17b20 |
220 | PerlInterpreter *sv_interp; |
a0d0e21e |
221 | void (*xsinit)_((void)); |
222 | int argc; |
223 | char **argv; |
79072805 |
224 | char **env; |
8d063cd8 |
225 | { |
79072805 |
226 | register SV *sv; |
8d063cd8 |
227 | register char *s; |
45d8adaa |
228 | char *scriptname; |
a0d0e21e |
229 | VOL bool dosearch = FALSE; |
13281fa4 |
230 | char *validarg = ""; |
8d063cd8 |
231 | |
a687059c |
232 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
233 | #ifdef IAMSUID |
234 | #undef IAMSUID |
463ee0b2 |
235 | croak("suidperl is no longer needed since the kernel can now execute\n\ |
a687059c |
236 | setuid perl scripts securely.\n"); |
237 | #endif |
238 | #endif |
239 | |
79072805 |
240 | if (!(curinterp = sv_interp)) |
241 | return 255; |
242 | |
ac58e20f |
243 | origargv = argv; |
244 | origargc = argc; |
a0d0e21e |
245 | #ifndef VMS /* VMS doesn't have environ array */ |
fe14fcc3 |
246 | origenviron = environ; |
a0d0e21e |
247 | #endif |
248 | |
249 | if (do_undump) { |
250 | |
251 | /* Come here if running an undumped a.out. */ |
252 | |
253 | origfilename = savepv(argv[0]); |
254 | do_undump = FALSE; |
255 | cxstack_ix = -1; /* start label stack again */ |
256 | init_postdump_symbols(argc,argv,env); |
257 | return 0; |
258 | } |
259 | |
260 | if (main_root) |
261 | op_free(main_root); |
262 | main_root = 0; |
79072805 |
263 | |
264 | switch (setjmp(top_env)) { |
265 | case 1: |
266 | statusvalue = 255; |
267 | case 2: |
8990e307 |
268 | curstash = defstash; |
269 | if (endav) |
270 | calllist(endav); |
79072805 |
271 | return(statusvalue); /* my_exit() was called */ |
272 | case 3: |
273 | fprintf(stderr, "panic: top_env\n"); |
8990e307 |
274 | return 1; |
79072805 |
275 | } |
276 | |
79072805 |
277 | sv_setpvn(linestr,"",0); |
278 | sv = newSVpv("",0); /* first used for -I flags */ |
8990e307 |
279 | SAVEFREESV(sv); |
79072805 |
280 | init_main_stash(); |
33b78306 |
281 | for (argc--,argv++; argc > 0; argc--,argv++) { |
8d063cd8 |
282 | if (argv[0][0] != '-' || !argv[0][1]) |
283 | break; |
13281fa4 |
284 | #ifdef DOSUID |
285 | if (*validarg) |
286 | validarg = " PHOOEY "; |
287 | else |
288 | validarg = argv[0]; |
289 | #endif |
290 | s = argv[0]+1; |
8d063cd8 |
291 | reswitch: |
13281fa4 |
292 | switch (*s) { |
27e2fb84 |
293 | case '0': |
2304df62 |
294 | case 'F': |
378cc40b |
295 | case 'a': |
33b78306 |
296 | case 'c': |
a687059c |
297 | case 'd': |
8d063cd8 |
298 | case 'D': |
33b78306 |
299 | case 'i': |
fe14fcc3 |
300 | case 'l': |
33b78306 |
301 | case 'n': |
302 | case 'p': |
79072805 |
303 | case 's': |
463ee0b2 |
304 | case 'T': |
33b78306 |
305 | case 'u': |
306 | case 'U': |
307 | case 'v': |
308 | case 'w': |
309 | if (s = moreswitches(s)) |
310 | goto reswitch; |
8d063cd8 |
311 | break; |
33b78306 |
312 | |
8d063cd8 |
313 | case 'e': |
a687059c |
314 | if (euid != uid || egid != gid) |
463ee0b2 |
315 | croak("No -e allowed in setuid scripts"); |
8d063cd8 |
316 | if (!e_fp) { |
a0d0e21e |
317 | e_tmpname = savepv(TMPPATH); |
a687059c |
318 | (void)mktemp(e_tmpname); |
83025b21 |
319 | if (!*e_tmpname) |
463ee0b2 |
320 | croak("Can't mktemp()"); |
8d063cd8 |
321 | e_fp = fopen(e_tmpname,"w"); |
33b78306 |
322 | if (!e_fp) |
463ee0b2 |
323 | croak("Cannot open temporary file"); |
8d063cd8 |
324 | } |
33b78306 |
325 | if (argv[1]) { |
8d063cd8 |
326 | fputs(argv[1],e_fp); |
33b78306 |
327 | argc--,argv++; |
328 | } |
a687059c |
329 | (void)putc('\n', e_fp); |
8d063cd8 |
330 | break; |
331 | case 'I': |
463ee0b2 |
332 | taint_not("-I"); |
79072805 |
333 | sv_catpv(sv,"-"); |
334 | sv_catpv(sv,s); |
335 | sv_catpv(sv," "); |
a687059c |
336 | if (*++s) { |
a0d0e21e |
337 | av_push(GvAVn(incgv),newSVpv(s,0)); |
378cc40b |
338 | } |
33b78306 |
339 | else if (argv[1]) { |
a0d0e21e |
340 | av_push(GvAVn(incgv),newSVpv(argv[1],0)); |
79072805 |
341 | sv_catpv(sv,argv[1]); |
8d063cd8 |
342 | argc--,argv++; |
79072805 |
343 | sv_catpv(sv," "); |
8d063cd8 |
344 | } |
345 | break; |
8d063cd8 |
346 | case 'P': |
463ee0b2 |
347 | taint_not("-P"); |
8d063cd8 |
348 | preprocess = TRUE; |
13281fa4 |
349 | s++; |
8d063cd8 |
350 | goto reswitch; |
378cc40b |
351 | case 'S': |
463ee0b2 |
352 | taint_not("-S"); |
378cc40b |
353 | dosearch = TRUE; |
13281fa4 |
354 | s++; |
378cc40b |
355 | goto reswitch; |
33b78306 |
356 | case 'x': |
357 | doextract = TRUE; |
13281fa4 |
358 | s++; |
33b78306 |
359 | if (*s) |
a0d0e21e |
360 | cddir = savepv(s); |
33b78306 |
361 | break; |
8d063cd8 |
362 | case '-': |
363 | argc--,argv++; |
364 | goto switch_end; |
365 | case 0: |
366 | break; |
367 | default: |
463ee0b2 |
368 | croak("Unrecognized switch: -%s",s); |
8d063cd8 |
369 | } |
370 | } |
371 | switch_end: |
45d8adaa |
372 | scriptname = argv[0]; |
8d063cd8 |
373 | if (e_fp) { |
83025b21 |
374 | if (fflush(e_fp) || ferror(e_fp) || fclose(e_fp)) |
2304df62 |
375 | croak("Can't write to temp file for -e: %s", Strerror(errno)); |
8d063cd8 |
376 | argc++,argv--; |
45d8adaa |
377 | scriptname = e_tmpname; |
8d063cd8 |
378 | } |
79072805 |
379 | else if (scriptname == Nullch) { |
380 | #ifdef MSDOS |
381 | if ( isatty(fileno(stdin)) ) |
382 | moreswitches("v"); |
fe14fcc3 |
383 | #endif |
79072805 |
384 | scriptname = "-"; |
385 | } |
fe14fcc3 |
386 | |
79072805 |
387 | init_perllib(); |
8d063cd8 |
388 | |
79072805 |
389 | open_script(scriptname,dosearch,sv); |
8d063cd8 |
390 | |
79072805 |
391 | validate_suid(validarg); |
378cc40b |
392 | |
79072805 |
393 | if (doextract) |
394 | find_beginning(); |
395 | |
79072805 |
396 | pad = newAV(); |
397 | comppad = pad; |
398 | av_push(comppad, Nullsv); |
399 | curpad = AvARRAY(comppad); |
93a17b20 |
400 | padname = newAV(); |
8990e307 |
401 | comppad_name = padname; |
402 | comppad_name_fill = 0; |
403 | min_intro_pending = 0; |
79072805 |
404 | padix = 0; |
405 | |
a0d0e21e |
406 | if (xsinit) |
407 | (*xsinit)(); /* in case linked C routines want magical variables */ |
93a17b20 |
408 | |
93a17b20 |
409 | init_predump_symbols(); |
8990e307 |
410 | if (!do_undump) |
411 | init_postdump_symbols(argc,argv,env); |
93a17b20 |
412 | |
79072805 |
413 | init_lexer(); |
414 | |
415 | /* now parse the script */ |
416 | |
417 | error_count = 0; |
418 | if (yyparse() || error_count) { |
419 | if (minus_c) |
463ee0b2 |
420 | croak("%s had compilation errors.\n", origfilename); |
79072805 |
421 | else { |
463ee0b2 |
422 | croak("Execution of %s aborted due to compilation errors.\n", |
79072805 |
423 | origfilename); |
378cc40b |
424 | } |
79072805 |
425 | } |
426 | curcop->cop_line = 0; |
427 | curstash = defstash; |
428 | preprocess = FALSE; |
429 | if (e_fp) { |
430 | e_fp = Nullfp; |
431 | (void)UNLINK(e_tmpname); |
378cc40b |
432 | } |
a687059c |
433 | |
93a17b20 |
434 | /* now that script is parsed, we can modify record separator */ |
a687059c |
435 | |
93a17b20 |
436 | rs = nrs; |
437 | rslen = nrslen; |
438 | rschar = nrschar; |
439 | rspara = (nrslen == 2); |
85e6fe83 |
440 | sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), rs, rslen); |
45d8adaa |
441 | |
79072805 |
442 | if (do_undump) |
443 | my_unexec(); |
444 | |
8990e307 |
445 | if (dowarn) |
446 | gv_check(defstash); |
447 | |
a0d0e21e |
448 | LEAVE; |
449 | FREETMPS; |
450 | ENTER; |
451 | restartop = 0; |
79072805 |
452 | return 0; |
453 | } |
454 | |
455 | int |
456 | perl_run(sv_interp) |
93a17b20 |
457 | PerlInterpreter *sv_interp; |
79072805 |
458 | { |
459 | if (!(curinterp = sv_interp)) |
460 | return 255; |
461 | switch (setjmp(top_env)) { |
462 | case 1: |
463 | cxstack_ix = -1; /* start context stack again */ |
464 | break; |
465 | case 2: |
466 | curstash = defstash; |
93a17b20 |
467 | if (endav) |
468 | calllist(endav); |
a0d0e21e |
469 | FREETMPS; |
93a17b20 |
470 | return(statusvalue); /* my_exit() was called */ |
79072805 |
471 | case 3: |
472 | if (!restartop) { |
473 | fprintf(stderr, "panic: restartop\n"); |
a0d0e21e |
474 | FREETMPS; |
8990e307 |
475 | return 1; |
83025b21 |
476 | } |
79072805 |
477 | if (stack != mainstack) { |
478 | dSP; |
479 | SWITCHSTACK(stack, mainstack); |
480 | } |
481 | break; |
8d063cd8 |
482 | } |
79072805 |
483 | |
484 | if (!restartop) { |
485 | DEBUG_x(dump_all()); |
486 | DEBUG(fprintf(stderr,"\nEXECUTING...\n\n")); |
487 | |
488 | if (minus_c) { |
489 | fprintf(stderr,"%s syntax OK\n", origfilename); |
490 | my_exit(0); |
491 | } |
a0d0e21e |
492 | if (perldb && DBsingle) |
493 | sv_setiv(DBsingle, 1); |
45d8adaa |
494 | } |
79072805 |
495 | |
496 | /* do it */ |
497 | |
498 | if (restartop) { |
499 | op = restartop; |
500 | restartop = 0; |
501 | run(); |
502 | } |
503 | else if (main_start) { |
504 | op = main_start; |
505 | run(); |
506 | } |
79072805 |
507 | |
508 | my_exit(0); |
a0d0e21e |
509 | return 0; |
79072805 |
510 | } |
511 | |
512 | void |
513 | my_exit(status) |
a0d0e21e |
514 | I32 status; |
79072805 |
515 | { |
a0d0e21e |
516 | register CONTEXT *cx; |
517 | I32 gimme; |
518 | SV **newsp; |
519 | |
79072805 |
520 | statusvalue = (unsigned short)(status & 0xffff); |
a0d0e21e |
521 | if (cxstack_ix >= 0) { |
522 | if (cxstack_ix > 0) |
523 | dounwind(0); |
524 | POPBLOCK(cx,curpm); |
525 | LEAVE; |
526 | } |
79072805 |
527 | longjmp(top_env, 2); |
528 | } |
529 | |
a0d0e21e |
530 | SV* |
531 | perl_get_sv(name, create) |
532 | char* name; |
533 | I32 create; |
534 | { |
535 | GV* gv = gv_fetchpv(name, create, SVt_PV); |
536 | if (gv) |
537 | return GvSV(gv); |
538 | return Nullsv; |
539 | } |
540 | |
541 | AV* |
542 | perl_get_av(name, create) |
543 | char* name; |
544 | I32 create; |
545 | { |
546 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); |
547 | if (create) |
548 | return GvAVn(gv); |
549 | if (gv) |
550 | return GvAV(gv); |
551 | return Nullav; |
552 | } |
553 | |
554 | HV* |
555 | perl_get_hv(name, create) |
556 | char* name; |
557 | I32 create; |
558 | { |
559 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); |
560 | if (create) |
561 | return GvHVn(gv); |
562 | if (gv) |
563 | return GvHV(gv); |
564 | return Nullhv; |
565 | } |
566 | |
567 | CV* |
568 | perl_get_cv(name, create) |
569 | char* name; |
570 | I32 create; |
571 | { |
572 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); |
573 | if (create && !GvCV(gv)) |
574 | return newSUB(start_subparse(), |
575 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
576 | Nullop); |
577 | if (gv) |
578 | return GvCV(gv); |
579 | return Nullcv; |
580 | } |
581 | |
79072805 |
582 | /* Be sure to refetch the stack pointer after calling these routines. */ |
583 | |
a0d0e21e |
584 | I32 |
585 | perl_call_argv(subname, flags, argv) |
8990e307 |
586 | char *subname; |
a0d0e21e |
587 | I32 flags; /* See G_* flags in cop.h */ |
588 | register char **argv; /* null terminated arg list */ |
8990e307 |
589 | { |
a0d0e21e |
590 | dSP; |
8990e307 |
591 | |
a0d0e21e |
592 | PUSHMARK(sp); |
593 | if (argv) { |
8990e307 |
594 | while (*argv) { |
a0d0e21e |
595 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 |
596 | argv++; |
597 | } |
a0d0e21e |
598 | PUTBACK; |
8990e307 |
599 | } |
a0d0e21e |
600 | return perl_call_pv(subname, flags); |
8990e307 |
601 | } |
602 | |
a0d0e21e |
603 | I32 |
604 | perl_call_pv(subname, flags) |
605 | char *subname; /* name of the subroutine */ |
606 | I32 flags; /* See G_* flags in cop.h */ |
607 | { |
608 | return perl_call_sv((SV*)perl_get_cv(subname, TRUE), flags); |
609 | } |
610 | |
611 | I32 |
612 | perl_call_method(methname, flags) |
613 | char *methname; /* name of the subroutine */ |
614 | I32 flags; /* See G_* flags in cop.h */ |
615 | { |
616 | dSP; |
617 | OP myop; |
618 | if (!op) |
619 | op = &myop; |
620 | XPUSHs(sv_2mortal(newSVpv(methname,0))); |
621 | PUTBACK; |
622 | pp_method(); |
623 | return perl_call_sv(*stack_sp--, flags); |
624 | } |
625 | |
626 | /* May be called with any of a CV, a GV, or an SV containing the name. */ |
627 | I32 |
628 | perl_call_sv(sv, flags) |
629 | SV* sv; |
630 | I32 flags; /* See G_* flags in cop.h */ |
631 | { |
632 | LOGOP myop; /* fake syntax tree node */ |
633 | SV** sp = stack_sp; |
634 | I32 oldmark = TOPMARK; |
635 | I32 retval; |
636 | jmp_buf oldtop; |
637 | I32 oldscope; |
638 | |
639 | if (flags & G_DISCARD) { |
640 | ENTER; |
641 | SAVETMPS; |
642 | } |
643 | |
644 | SAVESPTR(op); |
645 | op = (OP*)&myop; |
646 | Zero(op, 1, LOGOP); |
647 | EXTEND(stack_sp, 1); |
648 | *++stack_sp = sv; |
649 | oldscope = scopestack_ix; |
650 | |
651 | if (!(flags & G_NOARGS)) |
652 | myop.op_flags = OPf_STACKED; |
653 | myop.op_next = Nullop; |
654 | myop.op_flags |= OPf_KNOW; |
655 | if (flags & G_ARRAY) |
656 | myop.op_flags |= OPf_LIST; |
657 | |
658 | if (flags & G_EVAL) { |
659 | Copy(top_env, oldtop, 1, jmp_buf); |
660 | |
661 | cLOGOP->op_other = op; |
662 | markstack_ptr--; |
663 | pp_entertry(); |
664 | markstack_ptr++; |
665 | |
666 | restart: |
667 | switch (setjmp(top_env)) { |
668 | case 0: |
669 | break; |
670 | case 1: |
671 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
672 | /* FALL THROUGH */ |
673 | case 2: |
674 | /* my_exit() was called */ |
675 | curstash = defstash; |
676 | FREETMPS; |
677 | Copy(oldtop, top_env, 1, jmp_buf); |
678 | if (statusvalue) |
679 | croak("Callback called exit"); |
680 | my_exit(statusvalue); |
681 | /* NOTREACHED */ |
682 | case 3: |
683 | if (restartop) { |
684 | op = restartop; |
685 | restartop = 0; |
686 | goto restart; |
687 | } |
688 | stack_sp = stack_base + oldmark; |
689 | if (flags & G_ARRAY) |
690 | retval = 0; |
691 | else { |
692 | retval = 1; |
693 | *++stack_sp = &sv_undef; |
694 | } |
695 | goto cleanup; |
696 | } |
697 | } |
698 | |
699 | if (op == (OP*)&myop) |
700 | op = pp_entersub(); |
701 | if (op) |
702 | run(); |
703 | retval = stack_sp - (stack_base + oldmark); |
704 | if (flags & G_EVAL) |
705 | sv_setpv(GvSV(gv_fetchpv("@",TRUE, SVt_PV)),""); |
706 | |
707 | cleanup: |
708 | if (flags & G_EVAL) { |
709 | if (scopestack_ix > oldscope) { |
710 | op = (OP*)&myop; |
711 | pp_leavetry(); |
712 | } |
713 | Copy(oldtop, top_env, 1, jmp_buf); |
714 | } |
715 | if (flags & G_DISCARD) { |
716 | stack_sp = stack_base + oldmark; |
717 | retval = 0; |
718 | FREETMPS; |
719 | LEAVE; |
720 | } |
721 | return retval; |
722 | } |
723 | |
724 | /* Older forms, here grandfathered. */ |
725 | |
726 | #ifdef DEPRECATED |
727 | I32 |
728 | perl_callargv(subname, spix, gimme, argv) |
729 | char *subname; |
730 | register I32 spix; /* current stack pointer index */ |
731 | I32 gimme; /* See G_* flags in cop.h */ |
732 | register char **argv; /* null terminated arg list, NULL for no arglist */ |
733 | { |
734 | stack_sp = stack_base + spix; |
735 | return spix + perl_call_argv(subname, gimme, argv); |
736 | } |
737 | |
738 | I32 |
739 | perl_callpv(subname, spix, gimme, hasargs, numargs) |
79072805 |
740 | char *subname; |
a0d0e21e |
741 | I32 spix; /* stack pointer index after args are pushed */ |
742 | I32 gimme; /* See G_* flags in cop.h */ |
8990e307 |
743 | I32 hasargs; /* whether to create a @_ array for routine */ |
744 | I32 numargs; /* how many args are pushed on the stack */ |
745 | { |
a0d0e21e |
746 | stack_sp = stack_base + spix; |
747 | PUSHMARK(stack_sp - numargs); |
748 | return spix - numargs + perl_call_sv((SV*)perl_get_cv(subname, TRUE), |
749 | gimme, hasargs, numargs); |
8990e307 |
750 | } |
751 | |
a0d0e21e |
752 | I32 |
753 | perl_callsv(sv, spix, gimme, hasargs, numargs) |
8990e307 |
754 | SV* sv; |
a0d0e21e |
755 | I32 spix; /* stack pointer index after args are pushed */ |
756 | I32 gimme; /* See G_* flags in cop.h */ |
79072805 |
757 | I32 hasargs; /* whether to create a @_ array for routine */ |
758 | I32 numargs; /* how many args are pushed on the stack */ |
759 | { |
a0d0e21e |
760 | stack_sp = stack_base + spix; |
761 | PUSHMARK(stack_sp - numargs); |
762 | return spix - numargs + perl_call_sv(sv, gimme, hasargs, numargs); |
763 | } |
764 | #endif |
765 | |
766 | /* Require a module. */ |
767 | |
768 | void |
769 | perl_requirepv(pv) |
770 | char* pv; |
771 | { |
772 | UNOP myop; /* fake syntax tree node */ |
773 | SV* sv; |
774 | dSP; |
79072805 |
775 | |
776 | ENTER; |
463ee0b2 |
777 | SAVETMPS; |
79072805 |
778 | SAVESPTR(op); |
a0d0e21e |
779 | sv = sv_newmortal(); |
780 | sv_setpv(sv, pv); |
79072805 |
781 | op = (OP*)&myop; |
a0d0e21e |
782 | Zero(op, 1, UNOP); |
783 | XPUSHs(sv); |
79072805 |
784 | |
a0d0e21e |
785 | myop.op_type = OP_REQUIRE; |
79072805 |
786 | myop.op_next = Nullop; |
a0d0e21e |
787 | myop.op_private = 1; |
788 | myop.op_flags = OPf_KNOW; |
79072805 |
789 | |
a0d0e21e |
790 | PUTBACK; |
791 | if (op = pp_require()) |
463ee0b2 |
792 | run(); |
a0d0e21e |
793 | stack_sp--; |
794 | FREETMPS; |
79072805 |
795 | LEAVE; |
79072805 |
796 | } |
797 | |
79072805 |
798 | void |
79072805 |
799 | magicname(sym,name,namlen) |
800 | char *sym; |
801 | char *name; |
802 | I32 namlen; |
803 | { |
804 | register GV *gv; |
805 | |
85e6fe83 |
806 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 |
807 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
808 | } |
809 | |
810 | #ifdef DOSISH |
811 | #define PERLLIB_SEP ';' |
812 | #else |
813 | #define PERLLIB_SEP ':' |
814 | #endif |
815 | |
816 | static void |
817 | incpush(p) |
818 | char *p; |
819 | { |
820 | char *s; |
821 | |
822 | if (!p) |
823 | return; |
824 | |
825 | /* Break at all separators */ |
826 | while (*p) { |
827 | /* First, skip any consecutive separators */ |
828 | while ( *p == PERLLIB_SEP ) { |
829 | /* Uncomment the next line for PATH semantics */ |
a0d0e21e |
830 | /* av_push(GvAVn(incgv), newSVpv(".", 1)); */ |
79072805 |
831 | p++; |
832 | } |
93a17b20 |
833 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { |
a0d0e21e |
834 | av_push(GvAVn(incgv), newSVpv(p, (STRLEN)(s - p))); |
79072805 |
835 | p = s + 1; |
836 | } else { |
a0d0e21e |
837 | av_push(GvAVn(incgv), newSVpv(p, 0)); |
79072805 |
838 | break; |
839 | } |
840 | } |
841 | } |
842 | |
843 | /* This routine handles any switches that can be given during run */ |
844 | |
845 | char * |
846 | moreswitches(s) |
847 | char *s; |
848 | { |
849 | I32 numlen; |
850 | |
851 | switch (*s) { |
852 | case '0': |
853 | nrschar = scan_oct(s, 4, &numlen); |
a0d0e21e |
854 | nrs = savepvn("\n",1); |
79072805 |
855 | *nrs = nrschar; |
856 | if (nrschar > 0377) { |
857 | nrslen = 0; |
858 | nrs = ""; |
859 | } |
860 | else if (!nrschar && numlen >= 2) { |
861 | nrslen = 2; |
862 | nrs = "\n\n"; |
863 | nrschar = '\n'; |
864 | } |
865 | return s + numlen; |
2304df62 |
866 | case 'F': |
867 | minus_F = TRUE; |
a0d0e21e |
868 | splitstr = savepv(s + 1); |
2304df62 |
869 | s += strlen(s); |
870 | return s; |
79072805 |
871 | case 'a': |
872 | minus_a = TRUE; |
873 | s++; |
874 | return s; |
875 | case 'c': |
876 | minus_c = TRUE; |
877 | s++; |
878 | return s; |
879 | case 'd': |
463ee0b2 |
880 | taint_not("-d"); |
a0d0e21e |
881 | if (!perldb) { |
882 | perldb = TRUE; |
883 | init_debugger(); |
884 | } |
79072805 |
885 | s++; |
886 | return s; |
887 | case 'D': |
888 | #ifdef DEBUGGING |
463ee0b2 |
889 | taint_not("-D"); |
79072805 |
890 | if (isALPHA(s[1])) { |
8990e307 |
891 | static char debopts[] = "psltocPmfrxuLHXD"; |
79072805 |
892 | char *d; |
893 | |
93a17b20 |
894 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
79072805 |
895 | debug |= 1 << (d - debopts); |
896 | } |
897 | else { |
898 | debug = atoi(s+1); |
899 | for (s++; isDIGIT(*s); s++) ; |
900 | } |
8990e307 |
901 | debug |= 0x80000000; |
79072805 |
902 | #else |
903 | warn("Recompile perl with -DDEBUGGING to use -D switch\n"); |
a0d0e21e |
904 | for (s++; isALNUM(*s); s++) ; |
79072805 |
905 | #endif |
906 | /*SUPPRESS 530*/ |
907 | return s; |
908 | case 'i': |
909 | if (inplace) |
910 | Safefree(inplace); |
a0d0e21e |
911 | inplace = savepv(s+1); |
79072805 |
912 | /*SUPPRESS 530*/ |
913 | for (s = inplace; *s && !isSPACE(*s); s++) ; |
914 | *s = '\0'; |
915 | break; |
916 | case 'I': |
463ee0b2 |
917 | taint_not("-I"); |
79072805 |
918 | if (*++s) { |
a0d0e21e |
919 | av_push(GvAVn(incgv),newSVpv(s,0)); |
79072805 |
920 | } |
921 | else |
463ee0b2 |
922 | croak("No space allowed after -I"); |
79072805 |
923 | break; |
924 | case 'l': |
925 | minus_l = TRUE; |
926 | s++; |
a0d0e21e |
927 | if (ors) |
928 | Safefree(ors); |
79072805 |
929 | if (isDIGIT(*s)) { |
a0d0e21e |
930 | ors = savepv("\n"); |
79072805 |
931 | orslen = 1; |
932 | *ors = scan_oct(s, 3 + (*s == '0'), &numlen); |
933 | s += numlen; |
934 | } |
935 | else { |
a0d0e21e |
936 | ors = savepvn(nrs,nrslen); |
79072805 |
937 | orslen = nrslen; |
938 | } |
939 | return s; |
940 | case 'n': |
941 | minus_n = TRUE; |
942 | s++; |
943 | return s; |
944 | case 'p': |
945 | minus_p = TRUE; |
946 | s++; |
947 | return s; |
948 | case 's': |
463ee0b2 |
949 | taint_not("-s"); |
79072805 |
950 | doswitches = TRUE; |
951 | s++; |
952 | return s; |
463ee0b2 |
953 | case 'T': |
954 | tainting = TRUE; |
955 | s++; |
956 | return s; |
79072805 |
957 | case 'u': |
958 | do_undump = TRUE; |
959 | s++; |
960 | return s; |
961 | case 'U': |
962 | unsafe = TRUE; |
963 | s++; |
964 | return s; |
965 | case 'v': |
a0d0e21e |
966 | printf("\nThis is perl, version %s\n\n",patchlevel); |
967 | fputs("\nCopyright 1987-1994, Larry Wall\n",stdout); |
79072805 |
968 | #ifdef MSDOS |
969 | fputs("MS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n", |
970 | stdout); |
971 | #ifdef OS2 |
972 | fputs("OS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n", |
973 | stdout); |
974 | #endif |
975 | #endif |
976 | #ifdef atarist |
977 | fputs("atariST series port, ++jrb bammi@cadence.com\n", stdout); |
978 | #endif |
979 | fputs("\n\ |
980 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
981 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n",stdout); |
982 | #ifdef MSDOS |
983 | usage(origargv[0]); |
984 | #endif |
985 | exit(0); |
986 | case 'w': |
987 | dowarn = TRUE; |
988 | s++; |
989 | return s; |
a0d0e21e |
990 | case '*': |
79072805 |
991 | case ' ': |
992 | if (s[1] == '-') /* Additional switches on #! line. */ |
993 | return s+2; |
994 | break; |
a0d0e21e |
995 | case '-': |
79072805 |
996 | case 0: |
997 | case '\n': |
998 | case '\t': |
999 | break; |
a0d0e21e |
1000 | case 'P': |
1001 | if (preprocess) |
1002 | return s+1; |
1003 | /* FALL THROUGH */ |
79072805 |
1004 | default: |
a0d0e21e |
1005 | croak("Can't emulate -%.1s on #! line",s); |
79072805 |
1006 | } |
1007 | return Nullch; |
1008 | } |
1009 | |
1010 | /* compliments of Tom Christiansen */ |
1011 | |
1012 | /* unexec() can be found in the Gnu emacs distribution */ |
1013 | |
1014 | void |
1015 | my_unexec() |
1016 | { |
1017 | #ifdef UNEXEC |
1018 | int status; |
1019 | extern int etext; |
1020 | |
1021 | sprintf (buf, "%s.perldump", origfilename); |
1022 | sprintf (tokenbuf, "%s/perl", BIN); |
1023 | |
1024 | status = unexec(buf, tokenbuf, &etext, sbrk(0), 0); |
1025 | if (status) |
1026 | fprintf(stderr, "unexec of %s into %s failed!\n", tokenbuf, buf); |
a0d0e21e |
1027 | exit(status); |
79072805 |
1028 | #else |
1029 | ABORT(); /* for use with undump */ |
1030 | #endif |
1031 | } |
1032 | |
1033 | static void |
1034 | init_main_stash() |
1035 | { |
463ee0b2 |
1036 | GV *gv; |
1037 | curstash = defstash = newHV(); |
79072805 |
1038 | curstname = newSVpv("main",4); |
a0d0e21e |
1039 | GvHV(gv = gv_fetchpv("main::",TRUE, SVt_PVHV)) = |
1040 | (HV*)SvREFCNT_inc(defstash); |
463ee0b2 |
1041 | SvREADONLY_on(gv); |
a0d0e21e |
1042 | HvNAME(defstash) = savepv("main"); |
85e6fe83 |
1043 | incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); |
79072805 |
1044 | SvMULTI_on(incgv); |
a0d0e21e |
1045 | defgv = gv_fetchpv("_",TRUE, SVt_PVAV); |
8990e307 |
1046 | curstash = defstash; |
1047 | compiling.cop_stash = defstash; |
a0d0e21e |
1048 | debstash = newHV(); |
1049 | GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)) = debstash; |
79072805 |
1050 | } |
1051 | |
a0d0e21e |
1052 | #ifdef CAN_PROTOTYPE |
1053 | static void |
1054 | open_script(char *scriptname, bool dosearch, SV *sv) |
1055 | #else |
79072805 |
1056 | static void |
1057 | open_script(scriptname,dosearch,sv) |
1058 | char *scriptname; |
1059 | bool dosearch; |
1060 | SV *sv; |
a0d0e21e |
1061 | #endif |
79072805 |
1062 | { |
1063 | char *xfound = Nullch; |
1064 | char *xfailed = Nullch; |
1065 | register char *s; |
1066 | I32 len; |
1067 | |
93a17b20 |
1068 | if (dosearch && !strchr(scriptname, '/') && (s = getenv("PATH"))) { |
79072805 |
1069 | |
1070 | bufend = s + strlen(s); |
1071 | while (*s) { |
1072 | #ifndef DOSISH |
1073 | s = cpytill(tokenbuf,s,bufend,':',&len); |
1074 | #else |
1075 | #ifdef atarist |
1076 | for (len = 0; *s && *s != ',' && *s != ';'; tokenbuf[len++] = *s++); |
1077 | tokenbuf[len] = '\0'; |
1078 | #else |
1079 | for (len = 0; *s && *s != ';'; tokenbuf[len++] = *s++); |
1080 | tokenbuf[len] = '\0'; |
1081 | #endif |
1082 | #endif |
1083 | if (*s) |
1084 | s++; |
1085 | #ifndef DOSISH |
1086 | if (len && tokenbuf[len-1] != '/') |
1087 | #else |
1088 | #ifdef atarist |
1089 | if (len && ((tokenbuf[len-1] != '\\') && (tokenbuf[len-1] != '/'))) |
1090 | #else |
1091 | if (len && tokenbuf[len-1] != '\\') |
1092 | #endif |
1093 | #endif |
1094 | (void)strcat(tokenbuf+len,"/"); |
1095 | (void)strcat(tokenbuf+len,scriptname); |
1096 | DEBUG_p(fprintf(stderr,"Looking for %s\n",tokenbuf)); |
a0d0e21e |
1097 | if (Stat(tokenbuf,&statbuf) < 0) /* not there? */ |
79072805 |
1098 | continue; |
1099 | if (S_ISREG(statbuf.st_mode) |
1100 | && cando(S_IRUSR,TRUE,&statbuf) && cando(S_IXUSR,TRUE,&statbuf)) { |
1101 | xfound = tokenbuf; /* bingo! */ |
1102 | break; |
1103 | } |
1104 | if (!xfailed) |
a0d0e21e |
1105 | xfailed = savepv(tokenbuf); |
79072805 |
1106 | } |
1107 | if (!xfound) |
463ee0b2 |
1108 | croak("Can't execute %s", xfailed ? xfailed : scriptname ); |
79072805 |
1109 | if (xfailed) |
1110 | Safefree(xfailed); |
1111 | scriptname = xfound; |
1112 | } |
1113 | |
a0d0e21e |
1114 | origfilename = savepv(e_fp ? "-e" : scriptname); |
79072805 |
1115 | curcop->cop_filegv = gv_fetchfile(origfilename); |
1116 | if (strEQ(origfilename,"-")) |
1117 | scriptname = ""; |
1118 | if (preprocess) { |
1119 | char *cpp = CPPSTDIN; |
1120 | |
1121 | if (strEQ(cpp,"cppstdin")) |
1122 | sprintf(tokenbuf, "%s/%s", SCRIPTDIR, cpp); |
1123 | else |
1124 | sprintf(tokenbuf, "%s", cpp); |
1125 | sv_catpv(sv,"-I"); |
1126 | sv_catpv(sv,PRIVLIB); |
1127 | #ifdef MSDOS |
1128 | (void)sprintf(buf, "\ |
1129 | sed %s -e \"/^[^#]/b\" \ |
1130 | -e \"/^#[ ]*include[ ]/b\" \ |
1131 | -e \"/^#[ ]*define[ ]/b\" \ |
1132 | -e \"/^#[ ]*if[ ]/b\" \ |
1133 | -e \"/^#[ ]*ifdef[ ]/b\" \ |
1134 | -e \"/^#[ ]*ifndef[ ]/b\" \ |
1135 | -e \"/^#[ ]*else/b\" \ |
1136 | -e \"/^#[ ]*elif[ ]/b\" \ |
1137 | -e \"/^#[ ]*undef[ ]/b\" \ |
1138 | -e \"/^#[ ]*endif/b\" \ |
1139 | -e \"s/^#.*//\" \ |
1140 | %s | %s -C %s %s", |
1141 | (doextract ? "-e \"1,/^#/d\n\"" : ""), |
1142 | #else |
1143 | (void)sprintf(buf, "\ |
1144 | %s %s -e '/^[^#]/b' \ |
1145 | -e '/^#[ ]*include[ ]/b' \ |
1146 | -e '/^#[ ]*define[ ]/b' \ |
1147 | -e '/^#[ ]*if[ ]/b' \ |
1148 | -e '/^#[ ]*ifdef[ ]/b' \ |
1149 | -e '/^#[ ]*ifndef[ ]/b' \ |
1150 | -e '/^#[ ]*else/b' \ |
1151 | -e '/^#[ ]*elif[ ]/b' \ |
1152 | -e '/^#[ ]*undef[ ]/b' \ |
1153 | -e '/^#[ ]*endif/b' \ |
1154 | -e 's/^[ ]*#.*//' \ |
1155 | %s | %s -C %s %s", |
1156 | #ifdef LOC_SED |
1157 | LOC_SED, |
1158 | #else |
1159 | "sed", |
1160 | #endif |
1161 | (doextract ? "-e '1,/^#/d\n'" : ""), |
1162 | #endif |
463ee0b2 |
1163 | scriptname, tokenbuf, SvPV(sv, na), CPPMINUS); |
79072805 |
1164 | doextract = FALSE; |
1165 | #ifdef IAMSUID /* actually, this is caught earlier */ |
1166 | if (euid != uid && !euid) { /* if running suidperl */ |
1167 | #ifdef HAS_SETEUID |
1168 | (void)seteuid(uid); /* musn't stay setuid root */ |
1169 | #else |
1170 | #ifdef HAS_SETREUID |
85e6fe83 |
1171 | (void)setreuid((Uid_t)-1, uid); |
1172 | #else |
1173 | #ifdef HAS_SETRESUID |
1174 | (void)setresuid((Uid_t)-1, uid, (Uid_t)-1); |
79072805 |
1175 | #else |
1176 | setuid(uid); |
1177 | #endif |
1178 | #endif |
85e6fe83 |
1179 | #endif |
79072805 |
1180 | if (geteuid() != uid) |
463ee0b2 |
1181 | croak("Can't do seteuid!\n"); |
79072805 |
1182 | } |
1183 | #endif /* IAMSUID */ |
1184 | rsfp = my_popen(buf,"r"); |
1185 | } |
1186 | else if (!*scriptname) { |
463ee0b2 |
1187 | taint_not("program input from stdin"); |
79072805 |
1188 | rsfp = stdin; |
1189 | } |
1190 | else |
1191 | rsfp = fopen(scriptname,"r"); |
45d8adaa |
1192 | if ((FILE*)rsfp == Nullfp) { |
13281fa4 |
1193 | #ifdef DOSUID |
a687059c |
1194 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
a0d0e21e |
1195 | if (euid && Stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 && |
13281fa4 |
1196 | statbuf.st_mode & (S_ISUID|S_ISGID)) { |
27e2fb84 |
1197 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c |
1198 | execv(buf, origargv); /* try again */ |
463ee0b2 |
1199 | croak("Can't do setuid\n"); |
13281fa4 |
1200 | } |
1201 | #endif |
1202 | #endif |
463ee0b2 |
1203 | croak("Can't open perl script \"%s\": %s\n", |
2304df62 |
1204 | SvPVX(GvSV(curcop->cop_filegv)), Strerror(errno)); |
13281fa4 |
1205 | } |
79072805 |
1206 | } |
8d063cd8 |
1207 | |
79072805 |
1208 | static void |
1209 | validate_suid(validarg) |
1210 | char *validarg; |
1211 | { |
13281fa4 |
1212 | /* do we need to emulate setuid on scripts? */ |
1213 | |
1214 | /* This code is for those BSD systems that have setuid #! scripts disabled |
1215 | * in the kernel because of a security problem. Merely defining DOSUID |
1216 | * in perl will not fix that problem, but if you have disabled setuid |
1217 | * scripts in the kernel, this will attempt to emulate setuid and setgid |
1218 | * on scripts that have those now-otherwise-useless bits set. The setuid |
27e2fb84 |
1219 | * root version must be called suidperl or sperlN.NNN. If regular perl |
1220 | * discovers that it has opened a setuid script, it calls suidperl with |
1221 | * the same argv that it had. If suidperl finds that the script it has |
1222 | * just opened is NOT setuid root, it sets the effective uid back to the |
1223 | * uid. We don't just make perl setuid root because that loses the |
1224 | * effective uid we had before invoking perl, if it was different from the |
1225 | * uid. |
13281fa4 |
1226 | * |
1227 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must |
1228 | * be defined in suidperl only. suidperl must be setuid root. The |
1229 | * Configure script will set this up for you if you want it. |
1230 | */ |
a687059c |
1231 | |
13281fa4 |
1232 | #ifdef DOSUID |
a0d0e21e |
1233 | char *s; |
1234 | |
1235 | if (Fstat(fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */ |
463ee0b2 |
1236 | croak("Can't stat script \"%s\"",origfilename); |
13281fa4 |
1237 | if (statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 |
1238 | I32 len; |
13281fa4 |
1239 | |
a687059c |
1240 | #ifdef IAMSUID |
fe14fcc3 |
1241 | #ifndef HAS_SETREUID |
a687059c |
1242 | /* On this access check to make sure the directories are readable, |
1243 | * there is actually a small window that the user could use to make |
1244 | * filename point to an accessible directory. So there is a faint |
1245 | * chance that someone could execute a setuid script down in a |
1246 | * non-accessible directory. I don't know what to do about that. |
1247 | * But I don't think it's too important. The manual lies when |
1248 | * it says access() is useful in setuid programs. |
1249 | */ |
463ee0b2 |
1250 | if (access(SvPVX(GvSV(curcop->cop_filegv)),1)) /*double check*/ |
1251 | croak("Permission denied"); |
a687059c |
1252 | #else |
1253 | /* If we can swap euid and uid, then we can determine access rights |
1254 | * with a simple stat of the file, and then compare device and |
1255 | * inode to make sure we did stat() on the same file we opened. |
1256 | * Then we just have to make sure he or she can execute it. |
1257 | */ |
1258 | { |
1259 | struct stat tmpstatbuf; |
1260 | |
85e6fe83 |
1261 | if ( |
1262 | #ifdef HAS_SETREUID |
1263 | setreuid(euid,uid) < 0 |
a0d0e21e |
1264 | #else |
1265 | # if HAS_SETRESUID |
85e6fe83 |
1266 | setresuid(euid,uid,(Uid_t)-1) < 0 |
a0d0e21e |
1267 | # endif |
85e6fe83 |
1268 | #endif |
1269 | || getuid() != euid || geteuid() != uid) |
463ee0b2 |
1270 | croak("Can't swap uid and euid"); /* really paranoid */ |
a0d0e21e |
1271 | if (Stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0) |
463ee0b2 |
1272 | croak("Permission denied"); /* testing full pathname here */ |
a687059c |
1273 | if (tmpstatbuf.st_dev != statbuf.st_dev || |
1274 | tmpstatbuf.st_ino != statbuf.st_ino) { |
1275 | (void)fclose(rsfp); |
79072805 |
1276 | if (rsfp = my_popen("/bin/mail root","w")) { /* heh, heh */ |
a687059c |
1277 | fprintf(rsfp, |
1278 | "User %d tried to run dev %d ino %d in place of dev %d ino %d!\n\ |
1279 | (Filename of set-id script was %s, uid %d gid %d.)\n\nSincerely,\nperl\n", |
1280 | uid,tmpstatbuf.st_dev, tmpstatbuf.st_ino, |
1281 | statbuf.st_dev, statbuf.st_ino, |
463ee0b2 |
1282 | SvPVX(GvSV(curcop->cop_filegv)), |
20188a90 |
1283 | statbuf.st_uid, statbuf.st_gid); |
79072805 |
1284 | (void)my_pclose(rsfp); |
a687059c |
1285 | } |
463ee0b2 |
1286 | croak("Permission denied\n"); |
a687059c |
1287 | } |
85e6fe83 |
1288 | if ( |
1289 | #ifdef HAS_SETREUID |
1290 | setreuid(uid,euid) < 0 |
a0d0e21e |
1291 | #else |
1292 | # if defined(HAS_SETRESUID) |
85e6fe83 |
1293 | setresuid(uid,euid,(Uid_t)-1) < 0 |
a0d0e21e |
1294 | # endif |
85e6fe83 |
1295 | #endif |
1296 | || getuid() != uid || geteuid() != euid) |
463ee0b2 |
1297 | croak("Can't reswap uid and euid"); |
27e2fb84 |
1298 | if (!cando(S_IXUSR,FALSE,&statbuf)) /* can real uid exec? */ |
463ee0b2 |
1299 | croak("Permission denied\n"); |
a687059c |
1300 | } |
fe14fcc3 |
1301 | #endif /* HAS_SETREUID */ |
a687059c |
1302 | #endif /* IAMSUID */ |
1303 | |
27e2fb84 |
1304 | if (!S_ISREG(statbuf.st_mode)) |
463ee0b2 |
1305 | croak("Permission denied"); |
27e2fb84 |
1306 | if (statbuf.st_mode & S_IWOTH) |
463ee0b2 |
1307 | croak("Setuid/gid script is writable by world"); |
13281fa4 |
1308 | doswitches = FALSE; /* -s is insecure in suid */ |
79072805 |
1309 | curcop->cop_line++; |
13281fa4 |
1310 | if (fgets(tokenbuf,sizeof tokenbuf, rsfp) == Nullch || |
1311 | strnNE(tokenbuf,"#!",2) ) /* required even on Sys V */ |
463ee0b2 |
1312 | croak("No #! line"); |
663a0e37 |
1313 | s = tokenbuf+2; |
1314 | if (*s == ' ') s++; |
45d8adaa |
1315 | while (!isSPACE(*s)) s++; |
27e2fb84 |
1316 | if (strnNE(s-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ |
463ee0b2 |
1317 | croak("Not a perl script"); |
a687059c |
1318 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 |
1319 | /* |
1320 | * #! arg must be what we saw above. They can invoke it by |
1321 | * mentioning suidperl explicitly, but they may not add any strange |
1322 | * arguments beyond what #! says if they do invoke suidperl that way. |
1323 | */ |
1324 | len = strlen(validarg); |
1325 | if (strEQ(validarg," PHOOEY ") || |
45d8adaa |
1326 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
463ee0b2 |
1327 | croak("Args must match #! line"); |
a687059c |
1328 | |
1329 | #ifndef IAMSUID |
1330 | if (euid != uid && (statbuf.st_mode & S_ISUID) && |
1331 | euid == statbuf.st_uid) |
1332 | if (!do_undump) |
463ee0b2 |
1333 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c |
1334 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1335 | #endif /* IAMSUID */ |
13281fa4 |
1336 | |
1337 | if (euid) { /* oops, we're not the setuid root perl */ |
a687059c |
1338 | (void)fclose(rsfp); |
13281fa4 |
1339 | #ifndef IAMSUID |
27e2fb84 |
1340 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c |
1341 | execv(buf, origargv); /* try again */ |
13281fa4 |
1342 | #endif |
463ee0b2 |
1343 | croak("Can't do setuid\n"); |
13281fa4 |
1344 | } |
1345 | |
83025b21 |
1346 | if (statbuf.st_mode & S_ISGID && statbuf.st_gid != egid) { |
fe14fcc3 |
1347 | #ifdef HAS_SETEGID |
a687059c |
1348 | (void)setegid(statbuf.st_gid); |
1349 | #else |
fe14fcc3 |
1350 | #ifdef HAS_SETREGID |
85e6fe83 |
1351 | (void)setregid((Gid_t)-1,statbuf.st_gid); |
1352 | #else |
1353 | #ifdef HAS_SETRESGID |
1354 | (void)setresgid((Gid_t)-1,statbuf.st_gid,(Gid_t)-1); |
a687059c |
1355 | #else |
1356 | setgid(statbuf.st_gid); |
1357 | #endif |
1358 | #endif |
85e6fe83 |
1359 | #endif |
83025b21 |
1360 | if (getegid() != statbuf.st_gid) |
463ee0b2 |
1361 | croak("Can't do setegid!\n"); |
83025b21 |
1362 | } |
a687059c |
1363 | if (statbuf.st_mode & S_ISUID) { |
1364 | if (statbuf.st_uid != euid) |
fe14fcc3 |
1365 | #ifdef HAS_SETEUID |
a687059c |
1366 | (void)seteuid(statbuf.st_uid); /* all that for this */ |
1367 | #else |
fe14fcc3 |
1368 | #ifdef HAS_SETREUID |
85e6fe83 |
1369 | (void)setreuid((Uid_t)-1,statbuf.st_uid); |
1370 | #else |
1371 | #ifdef HAS_SETRESUID |
1372 | (void)setresuid((Uid_t)-1,statbuf.st_uid,(Uid_t)-1); |
a687059c |
1373 | #else |
1374 | setuid(statbuf.st_uid); |
1375 | #endif |
1376 | #endif |
85e6fe83 |
1377 | #endif |
83025b21 |
1378 | if (geteuid() != statbuf.st_uid) |
463ee0b2 |
1379 | croak("Can't do seteuid!\n"); |
a687059c |
1380 | } |
83025b21 |
1381 | else if (uid) { /* oops, mustn't run as root */ |
fe14fcc3 |
1382 | #ifdef HAS_SETEUID |
85e6fe83 |
1383 | (void)seteuid((Uid_t)uid); |
a687059c |
1384 | #else |
fe14fcc3 |
1385 | #ifdef HAS_SETREUID |
85e6fe83 |
1386 | (void)setreuid((Uid_t)-1,(Uid_t)uid); |
a687059c |
1387 | #else |
85e6fe83 |
1388 | #ifdef HAS_SETRESUID |
1389 | (void)setresuid((Uid_t)-1,(Uid_t)uid,(Uid_t)-1); |
1390 | #else |
1391 | setuid((Uid_t)uid); |
1392 | #endif |
a687059c |
1393 | #endif |
1394 | #endif |
83025b21 |
1395 | if (geteuid() != uid) |
463ee0b2 |
1396 | croak("Can't do seteuid!\n"); |
83025b21 |
1397 | } |
ffed7fef |
1398 | uid = (int)getuid(); |
13281fa4 |
1399 | euid = (int)geteuid(); |
ffed7fef |
1400 | gid = (int)getgid(); |
1401 | egid = (int)getegid(); |
463ee0b2 |
1402 | tainting |= (euid != uid || egid != gid); |
27e2fb84 |
1403 | if (!cando(S_IXUSR,TRUE,&statbuf)) |
463ee0b2 |
1404 | croak("Permission denied\n"); /* they can't do this */ |
13281fa4 |
1405 | } |
1406 | #ifdef IAMSUID |
1407 | else if (preprocess) |
463ee0b2 |
1408 | croak("-P not allowed for setuid/setgid script\n"); |
13281fa4 |
1409 | else |
463ee0b2 |
1410 | croak("Script is not setuid/setgid in suidperl\n"); |
13281fa4 |
1411 | #endif /* IAMSUID */ |
a687059c |
1412 | #else /* !DOSUID */ |
a687059c |
1413 | if (euid != uid || egid != gid) { /* (suidperl doesn't exist, in fact) */ |
1414 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW |
a0d0e21e |
1415 | Fstat(fileno(rsfp),&statbuf); /* may be either wrapped or real suid */ |
a687059c |
1416 | if ((euid != uid && euid == statbuf.st_uid && statbuf.st_mode & S_ISUID) |
1417 | || |
1418 | (egid != gid && egid == statbuf.st_gid && statbuf.st_mode & S_ISGID) |
1419 | ) |
1420 | if (!do_undump) |
463ee0b2 |
1421 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c |
1422 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1423 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ |
1424 | /* not set-id, must be wrapped */ |
a687059c |
1425 | } |
13281fa4 |
1426 | #endif /* DOSUID */ |
79072805 |
1427 | } |
13281fa4 |
1428 | |
79072805 |
1429 | static void |
1430 | find_beginning() |
1431 | { |
79072805 |
1432 | register char *s; |
33b78306 |
1433 | |
1434 | /* skip forward in input to the real script? */ |
1435 | |
463ee0b2 |
1436 | taint_not("-x"); |
33b78306 |
1437 | while (doextract) { |
79072805 |
1438 | if ((s = sv_gets(linestr, rsfp, 0)) == Nullch) |
463ee0b2 |
1439 | croak("No Perl script found in input\n"); |
33b78306 |
1440 | if (*s == '#' && s[1] == '!' && instr(s,"perl")) { |
1441 | ungetc('\n',rsfp); /* to keep line count right */ |
1442 | doextract = FALSE; |
1443 | if (s = instr(s,"perl -")) { |
1444 | s += 6; |
45d8adaa |
1445 | /*SUPPRESS 530*/ |
33b78306 |
1446 | while (s = moreswitches(s)) ; |
1447 | } |
79072805 |
1448 | if (cddir && chdir(cddir) < 0) |
463ee0b2 |
1449 | croak("Can't chdir to %s",cddir); |
83025b21 |
1450 | } |
1451 | } |
1452 | } |
1453 | |
79072805 |
1454 | static void |
1455 | init_debugger() |
352d5a3a |
1456 | { |
79072805 |
1457 | GV* tmpgv; |
1458 | |
79072805 |
1459 | curstash = debstash; |
a0d0e21e |
1460 | dbargs = GvAV(gv_AVadd((tmpgv = gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); |
79072805 |
1461 | AvREAL_off(dbargs); |
a0d0e21e |
1462 | DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); |
1463 | DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); |
1464 | DBsub = gv_HVadd(tmpgv = gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); |
1465 | DBsingle = GvSV((tmpgv = gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); |
1466 | DBtrace = GvSV((tmpgv = gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); |
1467 | DBsignal = GvSV((tmpgv = gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); |
79072805 |
1468 | curstash = defstash; |
352d5a3a |
1469 | } |
1470 | |
79072805 |
1471 | static void |
8990e307 |
1472 | init_stacks() |
79072805 |
1473 | { |
1474 | stack = newAV(); |
1475 | mainstack = stack; /* remember in case we switch stacks */ |
1476 | AvREAL_off(stack); /* not a real array */ |
a0d0e21e |
1477 | av_extend(stack,127); |
79072805 |
1478 | |
1479 | stack_base = AvARRAY(stack); |
1480 | stack_sp = stack_base; |
8990e307 |
1481 | stack_max = stack_base + 127; |
79072805 |
1482 | |
a0d0e21e |
1483 | New(54,markstack,64,I32); |
79072805 |
1484 | markstack_ptr = markstack; |
1485 | markstack_max = markstack + 64; |
1486 | |
a0d0e21e |
1487 | New(54,scopestack,32,I32); |
79072805 |
1488 | scopestack_ix = 0; |
1489 | scopestack_max = 32; |
1490 | |
1491 | New(54,savestack,128,ANY); |
1492 | savestack_ix = 0; |
1493 | savestack_max = 128; |
1494 | |
1495 | New(54,retstack,16,OP*); |
1496 | retstack_ix = 0; |
1497 | retstack_max = 16; |
8d063cd8 |
1498 | |
79072805 |
1499 | New(50,cxstack,128,CONTEXT); |
8990e307 |
1500 | cxstack_ix = -1; |
1501 | cxstack_max = 128; |
1502 | |
1503 | New(50,tmps_stack,128,SV*); |
1504 | tmps_ix = -1; |
1505 | tmps_max = 128; |
1506 | |
79072805 |
1507 | DEBUG( { |
1508 | New(51,debname,128,char); |
1509 | New(52,debdelim,128,char); |
1510 | } ) |
378cc40b |
1511 | } |
33b78306 |
1512 | |
a0d0e21e |
1513 | static FILE *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
79072805 |
1514 | static void |
8990e307 |
1515 | init_lexer() |
1516 | { |
a0d0e21e |
1517 | tmpfp = rsfp; |
8990e307 |
1518 | |
1519 | lex_start(linestr); |
1520 | rsfp = tmpfp; |
1521 | subname = newSVpv("main",4); |
1522 | } |
1523 | |
1524 | static void |
79072805 |
1525 | init_predump_symbols() |
45d8adaa |
1526 | { |
93a17b20 |
1527 | GV *tmpgv; |
a0d0e21e |
1528 | GV *othergv; |
79072805 |
1529 | |
85e6fe83 |
1530 | sv_setpvn(GvSV(gv_fetchpv("\"", TRUE, SVt_PV)), " ", 1); |
79072805 |
1531 | |
85e6fe83 |
1532 | stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
79072805 |
1533 | SvMULTI_on(stdingv); |
a0d0e21e |
1534 | IoIFP(GvIOp(stdingv)) = stdin; |
85e6fe83 |
1535 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PVIO); |
a0d0e21e |
1536 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(stdingv)); |
79072805 |
1537 | SvMULTI_on(tmpgv); |
1538 | |
85e6fe83 |
1539 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
79072805 |
1540 | SvMULTI_on(tmpgv); |
a0d0e21e |
1541 | IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = stdout; |
79072805 |
1542 | defoutgv = tmpgv; |
85e6fe83 |
1543 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PVIO); |
a0d0e21e |
1544 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(defoutgv)); |
79072805 |
1545 | SvMULTI_on(tmpgv); |
1546 | |
a0d0e21e |
1547 | othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
1548 | SvMULTI_on(othergv); |
1549 | IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = stderr; |
85e6fe83 |
1550 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PVIO); |
a0d0e21e |
1551 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv)); |
79072805 |
1552 | SvMULTI_on(tmpgv); |
79072805 |
1553 | |
1554 | statname = NEWSV(66,0); /* last filename we did stat on */ |
79072805 |
1555 | } |
33b78306 |
1556 | |
79072805 |
1557 | static void |
1558 | init_postdump_symbols(argc,argv,env) |
1559 | register int argc; |
1560 | register char **argv; |
1561 | register char **env; |
33b78306 |
1562 | { |
79072805 |
1563 | char *s; |
1564 | SV *sv; |
1565 | GV* tmpgv; |
fe14fcc3 |
1566 | |
79072805 |
1567 | argc--,argv++; /* skip name of script */ |
1568 | if (doswitches) { |
1569 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
1570 | if (!argv[0][1]) |
1571 | break; |
1572 | if (argv[0][1] == '-') { |
1573 | argc--,argv++; |
1574 | break; |
1575 | } |
93a17b20 |
1576 | if (s = strchr(argv[0], '=')) { |
79072805 |
1577 | *s++ = '\0'; |
85e6fe83 |
1578 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 |
1579 | } |
1580 | else |
85e6fe83 |
1581 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 |
1582 | } |
79072805 |
1583 | } |
1584 | toptarget = NEWSV(0,0); |
1585 | sv_upgrade(toptarget, SVt_PVFM); |
1586 | sv_setpvn(toptarget, "", 0); |
85e6fe83 |
1587 | tmpgv = gv_fetchpv("\001",TRUE, SVt_PV); |
1588 | bodytarget = GvSV(tmpgv); |
79072805 |
1589 | sv_upgrade(bodytarget, SVt_PVFM); |
1590 | sv_setpvn(bodytarget, "", 0); |
1591 | formtarget = bodytarget; |
1592 | |
79072805 |
1593 | tainted = 1; |
85e6fe83 |
1594 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
79072805 |
1595 | sv_setpv(GvSV(tmpgv),origfilename); |
1596 | magicname("0", "0", 1); |
1597 | } |
85e6fe83 |
1598 | if (tmpgv = gv_fetchpv("\024",TRUE, SVt_PV)) |
79072805 |
1599 | time(&basetime); |
85e6fe83 |
1600 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
79072805 |
1601 | sv_setpv(GvSV(tmpgv),origargv[0]); |
85e6fe83 |
1602 | if (argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { |
79072805 |
1603 | SvMULTI_on(argvgv); |
1604 | (void)gv_AVadd(argvgv); |
1605 | av_clear(GvAVn(argvgv)); |
1606 | for (; argc > 0; argc--,argv++) { |
a0d0e21e |
1607 | av_push(GvAVn(argvgv),newSVpv(argv[0],0)); |
79072805 |
1608 | } |
1609 | } |
85e6fe83 |
1610 | if (envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 |
1611 | HV *hv; |
1612 | SvMULTI_on(envgv); |
1613 | hv = GvHVn(envgv); |
463ee0b2 |
1614 | hv_clear(hv); |
a0d0e21e |
1615 | #ifndef VMS /* VMS doesn't have environ array */ |
8990e307 |
1616 | if (env != environ) { |
79072805 |
1617 | environ[0] = Nullch; |
8990e307 |
1618 | hv_magic(hv, envgv, 'E'); |
1619 | } |
a0d0e21e |
1620 | #endif |
1621 | #ifdef DYNAMIC_ENV_FETCH |
1622 | HvNAME(hv) = savepv(ENV_HV_NAME); |
1623 | #endif |
79072805 |
1624 | for (; *env; env++) { |
93a17b20 |
1625 | if (!(s = strchr(*env,'='))) |
79072805 |
1626 | continue; |
1627 | *s++ = '\0'; |
1628 | sv = newSVpv(s--,0); |
85e6fe83 |
1629 | sv_magic(sv, sv, 'e', *env, s - *env); |
79072805 |
1630 | (void)hv_store(hv, *env, s - *env, sv, 0); |
1631 | *s = '='; |
fe14fcc3 |
1632 | } |
f511e57f |
1633 | hv_magic(hv, envgv, 'E'); |
79072805 |
1634 | } |
79072805 |
1635 | tainted = 0; |
85e6fe83 |
1636 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
79072805 |
1637 | sv_setiv(GvSV(tmpgv),(I32)getpid()); |
1638 | |
33b78306 |
1639 | } |
34de22dd |
1640 | |
79072805 |
1641 | static void |
1642 | init_perllib() |
34de22dd |
1643 | { |
85e6fe83 |
1644 | char *s; |
1645 | if (!tainting) { |
1646 | s = getenv("PERL5LIB"); |
1647 | if (s) |
1648 | incpush(s); |
1649 | else |
1650 | incpush(getenv("PERLLIB")); |
1651 | } |
34de22dd |
1652 | |
a0d0e21e |
1653 | #ifdef ARCHLIB |
1654 | incpush(ARCHLIB); |
1655 | #endif |
79072805 |
1656 | #ifndef PRIVLIB |
85e6fe83 |
1657 | #define PRIVLIB "/usr/local/lib/perl5:/usr/local/lib/perl" |
34de22dd |
1658 | #endif |
79072805 |
1659 | incpush(PRIVLIB); |
a0d0e21e |
1660 | |
1661 | av_push(GvAVn(incgv),newSVpv(".",1)); |
34de22dd |
1662 | } |
93a17b20 |
1663 | |
1664 | void |
1665 | calllist(list) |
1666 | AV* list; |
1667 | { |
93a17b20 |
1668 | jmp_buf oldtop; |
a0d0e21e |
1669 | char *mess; |
1670 | STRLEN len; |
1671 | line_t oldline = curcop->cop_line; |
93a17b20 |
1672 | |
93a17b20 |
1673 | Copy(top_env, oldtop, 1, jmp_buf); |
1674 | |
8990e307 |
1675 | while (AvFILL(list) >= 0) { |
1676 | CV *cv = (CV*)av_shift(list); |
93a17b20 |
1677 | |
8990e307 |
1678 | SAVEFREESV(cv); |
a0d0e21e |
1679 | |
85e6fe83 |
1680 | switch (setjmp(top_env)) { |
1681 | case 0: |
a0d0e21e |
1682 | PUSHMARK(stack_sp); |
1683 | perl_call_sv((SV*)cv, G_EVAL|G_DISCARD); |
1684 | mess = SvPVx(GvSV(gv_fetchpv("@",TRUE, SVt_PV)), len); |
1685 | if (len) { |
1686 | Copy(oldtop, top_env, 1, jmp_buf); |
1687 | curcop = &compiling; |
1688 | curcop->cop_line = oldline; |
1689 | if (list == beginav) |
1690 | croak("%sBEGIN failed--compilation aborted", mess); |
1691 | else |
1692 | croak("%sEND failed--cleanup aborted", mess); |
1693 | } |
85e6fe83 |
1694 | break; |
1695 | case 1: |
1696 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
1697 | /* FALL THROUGH */ |
1698 | case 2: |
1699 | /* my_exit() was called */ |
1700 | curstash = defstash; |
1701 | if (endav) |
1702 | calllist(endav); |
a0d0e21e |
1703 | FREETMPS; |
1704 | Copy(oldtop, top_env, 1, jmp_buf); |
1705 | curcop = &compiling; |
1706 | curcop->cop_line = oldline; |
85e6fe83 |
1707 | if (statusvalue) { |
1708 | if (list == beginav) |
a0d0e21e |
1709 | croak("BEGIN failed--compilation aborted"); |
85e6fe83 |
1710 | else |
a0d0e21e |
1711 | croak("END failed--cleanup aborted"); |
85e6fe83 |
1712 | } |
85e6fe83 |
1713 | my_exit(statusvalue); |
1714 | /* NOTREACHED */ |
1715 | return; |
1716 | case 3: |
1717 | if (!restartop) { |
1718 | fprintf(stderr, "panic: restartop\n"); |
a0d0e21e |
1719 | FREETMPS; |
85e6fe83 |
1720 | break; |
1721 | } |
a0d0e21e |
1722 | Copy(oldtop, top_env, 1, jmp_buf); |
1723 | curcop = &compiling; |
1724 | curcop->cop_line = oldline; |
1725 | longjmp(top_env, 3); |
8990e307 |
1726 | } |
93a17b20 |
1727 | } |
1728 | |
1729 | Copy(oldtop, top_env, 1, jmp_buf); |
1730 | } |
1731 | |