Commit | Line | Data |
a0d0e21e |
1 | /* perl.c |
2 | * |
1a30305b |
3 | * Copyright (c) 1987-1996 Larry Wall |
a687059c |
4 | * |
352d5a3a |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
a687059c |
7 | * |
8d063cd8 |
8 | */ |
9 | |
a0d0e21e |
10 | /* |
11 | * "A ship then new they built for him/of mithril and of elven glass" --Bilbo |
12 | */ |
45d8adaa |
13 | |
378cc40b |
14 | #include "EXTERN.h" |
15 | #include "perl.h" |
a687059c |
16 | #include "patchlevel.h" |
378cc40b |
17 | |
df5cef82 |
18 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e |
19 | #ifdef I_UNISTD |
20 | #include <unistd.h> |
21 | #endif |
a0d0e21e |
22 | |
4633a7c4 |
23 | dEXT char rcsid[] = "perl.c\nPatch level: ###\n"; |
463ee0b2 |
24 | |
a687059c |
25 | #ifdef IAMSUID |
26 | #ifndef DOSUID |
27 | #define DOSUID |
28 | #endif |
29 | #endif |
378cc40b |
30 | |
a687059c |
31 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
32 | #ifdef DOSUID |
33 | #undef DOSUID |
34 | #endif |
35 | #endif |
8d063cd8 |
36 | |
a0d0e21e |
37 | static void find_beginning _((void)); |
38 | static void incpush _((char *)); |
748a9306 |
39 | static void init_ids _((void)); |
a0d0e21e |
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)); |
6e72f9df |
47 | static void nuke_stacks _((void)); |
a0d0e21e |
48 | static void open_script _((char *, bool, SV *)); |
ab821d7f |
49 | static void usage _((char *)); |
96436eeb |
50 | static void validate_suid _((char *, char*)); |
51 | |
52 | static int fdscript = -1; |
79072805 |
53 | |
93a17b20 |
54 | PerlInterpreter * |
79072805 |
55 | perl_alloc() |
56 | { |
93a17b20 |
57 | PerlInterpreter *sv_interp; |
79072805 |
58 | |
8990e307 |
59 | curinterp = 0; |
93a17b20 |
60 | New(53, sv_interp, 1, PerlInterpreter); |
79072805 |
61 | return sv_interp; |
62 | } |
63 | |
64 | void |
65 | perl_construct( sv_interp ) |
93a17b20 |
66 | register PerlInterpreter *sv_interp; |
79072805 |
67 | { |
68 | if (!(curinterp = sv_interp)) |
69 | return; |
70 | |
8990e307 |
71 | #ifdef MULTIPLICITY |
93a17b20 |
72 | Zero(sv_interp, 1, PerlInterpreter); |
8990e307 |
73 | #endif |
79072805 |
74 | |
75 | /* Init the real globals? */ |
76 | if (!linestr) { |
77 | linestr = NEWSV(65,80); |
ed6116ce |
78 | sv_upgrade(linestr,SVt_PVIV); |
79072805 |
79 | |
6e72f9df |
80 | if (!SvREADONLY(&sv_undef)) { |
81 | SvREADONLY_on(&sv_undef); |
79072805 |
82 | |
6e72f9df |
83 | sv_setpv(&sv_no,No); |
84 | SvNV(&sv_no); |
85 | SvREADONLY_on(&sv_no); |
79072805 |
86 | |
6e72f9df |
87 | sv_setpv(&sv_yes,Yes); |
88 | SvNV(&sv_yes); |
89 | SvREADONLY_on(&sv_yes); |
90 | } |
79072805 |
91 | |
c07a80fd |
92 | nrs = newSVpv("\n", 1); |
93 | rs = SvREFCNT_inc(nrs); |
94 | |
79072805 |
95 | #ifdef MSDOS |
96 | /* |
97 | * There is no way we can refer to them from Perl so close them to save |
98 | * space. The other alternative would be to provide STDAUX and STDPRN |
99 | * filehandles. |
100 | */ |
101 | (void)fclose(stdaux); |
102 | (void)fclose(stdprn); |
103 | #endif |
104 | } |
105 | |
8990e307 |
106 | #ifdef MULTIPLICITY |
79072805 |
107 | chopset = " \n-"; |
463ee0b2 |
108 | copline = NOLINE; |
79072805 |
109 | curcop = &compiling; |
1a30305b |
110 | dbargs = 0; |
79072805 |
111 | dlmax = 128; |
112 | laststatval = -1; |
113 | laststype = OP_STAT; |
114 | maxscream = -1; |
115 | maxsysfd = MAXSYSFD; |
79072805 |
116 | rsfp = Nullfp; |
463ee0b2 |
117 | statname = Nullsv; |
79072805 |
118 | tmps_floor = -1; |
79072805 |
119 | #endif |
120 | |
748a9306 |
121 | init_ids(); |
a5f75d66 |
122 | |
123 | #if defined(SUBVERSION) && SUBVERSION > 0 |
e2666263 |
124 | sprintf(patchlevel, "%7.5f", (double) 5 |
125 | + ((double) PATCHLEVEL / (double) 1000) |
126 | + ((double) SUBVERSION / (double) 100000)); |
a5f75d66 |
127 | #else |
e2666263 |
128 | sprintf(patchlevel, "%5.3f", (double) 5 + |
129 | ((double) PATCHLEVEL / (double) 1000)); |
a5f75d66 |
130 | #endif |
79072805 |
131 | |
ab821d7f |
132 | #if defined(LOCAL_PATCH_COUNT) |
6e72f9df |
133 | localpatches = local_patches; /* For possible -v */ |
ab821d7f |
134 | #endif |
135 | |
760ac839 |
136 | PerlIO_init(); /* Hook to IO system */ |
137 | |
79072805 |
138 | fdpid = newAV(); /* for remembering popen pids by fd */ |
463ee0b2 |
139 | pidstatus = newHV();/* for remembering status of dead pids */ |
8990e307 |
140 | |
141 | init_stacks(); |
142 | ENTER; |
79072805 |
143 | } |
144 | |
145 | void |
748a9306 |
146 | perl_destruct(sv_interp) |
93a17b20 |
147 | register PerlInterpreter *sv_interp; |
79072805 |
148 | { |
748a9306 |
149 | int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
8990e307 |
150 | I32 last_sv_count; |
a0d0e21e |
151 | HV *hv; |
8990e307 |
152 | |
79072805 |
153 | if (!(curinterp = sv_interp)) |
154 | return; |
748a9306 |
155 | |
156 | destruct_level = perl_destruct_level; |
4633a7c4 |
157 | #ifdef DEBUGGING |
158 | { |
159 | char *s; |
160 | if (s = getenv("PERL_DESTRUCT_LEVEL")) |
161 | destruct_level = atoi(s); |
162 | } |
163 | #endif |
164 | |
8990e307 |
165 | LEAVE; |
a0d0e21e |
166 | FREETMPS; |
167 | |
6e72f9df |
168 | /* We must account for everything. First the syntax tree. */ |
169 | if (main_root) { |
170 | curpad = AvARRAY(comppad); |
171 | op_free(main_root); |
172 | main_root = 0; |
a0d0e21e |
173 | } |
174 | if (sv_objcount) { |
175 | /* |
176 | * Try to destruct global references. We do this first so that the |
177 | * destructors and destructees still exist. Some sv's might remain. |
178 | * Non-referenced objects are on their own. |
179 | */ |
180 | |
181 | dirty = TRUE; |
182 | sv_clean_objs(); |
8990e307 |
183 | } |
184 | |
a0d0e21e |
185 | if (destruct_level == 0){ |
8990e307 |
186 | |
a0d0e21e |
187 | DEBUG_P(debprofdump()); |
188 | |
189 | /* The exit() function will do everything that needs doing. */ |
190 | return; |
191 | } |
192 | |
193 | /* Prepare to destruct main symbol table. */ |
194 | hv = defstash; |
85e6fe83 |
195 | defstash = 0; |
a0d0e21e |
196 | SvREFCNT_dec(hv); |
197 | |
198 | FREETMPS; |
199 | if (destruct_level >= 2) { |
200 | if (scopestack_ix != 0) |
201 | warn("Unbalanced scopes: %d more ENTERs than LEAVEs\n", scopestack_ix); |
202 | if (savestack_ix != 0) |
203 | warn("Unbalanced saves: %d more saves than restores\n", savestack_ix); |
204 | if (tmps_floor != -1) |
205 | warn("Unbalanced tmps: %d more allocs than frees\n", tmps_floor + 1); |
206 | if (cxstack_ix != -1) |
207 | warn("Unbalanced context: %d more PUSHes than POPs\n", cxstack_ix + 1); |
208 | } |
8990e307 |
209 | |
210 | /* Now absolutely destruct everything, somehow or other, loops or no. */ |
8990e307 |
211 | last_sv_count = 0; |
6e72f9df |
212 | SvFLAGS(strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
8990e307 |
213 | while (sv_count != 0 && sv_count != last_sv_count) { |
214 | last_sv_count = sv_count; |
215 | sv_clean_all(); |
216 | } |
6e72f9df |
217 | SvFLAGS(strtab) &= ~SVTYPEMASK; |
218 | SvFLAGS(strtab) |= SVt_PVHV; |
219 | |
220 | /* Destruct the global string table. */ |
221 | { |
222 | /* Yell and reset the HeVAL() slots that are still holding refcounts, |
223 | * so that sv_free() won't fail on them. |
224 | */ |
225 | I32 riter; |
226 | I32 max; |
227 | HE *hent; |
228 | HE **array; |
229 | |
230 | riter = 0; |
231 | max = HvMAX(strtab); |
232 | array = HvARRAY(strtab); |
233 | hent = array[0]; |
234 | for (;;) { |
235 | if (hent) { |
236 | warn("Unbalanced string table refcount: (%d) for \"%s\"", |
237 | HeVAL(hent) - Nullsv, HeKEY(hent)); |
238 | HeVAL(hent) = Nullsv; |
239 | hent = HeNEXT(hent); |
240 | } |
241 | if (!hent) { |
242 | if (++riter > max) |
243 | break; |
244 | hent = array[riter]; |
245 | } |
246 | } |
247 | } |
248 | SvREFCNT_dec(strtab); |
249 | |
8990e307 |
250 | if (sv_count != 0) |
251 | warn("Scalars leaked: %d\n", sv_count); |
6e72f9df |
252 | |
4633a7c4 |
253 | sv_free_arenas(); |
a0d0e21e |
254 | |
6e72f9df |
255 | linestr = NULL; /* No SVs have survived, need to clean out */ |
256 | if (origfilename) |
257 | Safefree(origfilename); |
258 | nuke_stacks(); |
259 | hints = 0; /* Reset hints. Should hints be per-interpreter ? */ |
260 | |
a0d0e21e |
261 | DEBUG_P(debprofdump()); |
79072805 |
262 | } |
263 | |
264 | void |
265 | perl_free(sv_interp) |
93a17b20 |
266 | PerlInterpreter *sv_interp; |
79072805 |
267 | { |
268 | if (!(curinterp = sv_interp)) |
269 | return; |
270 | Safefree(sv_interp); |
271 | } |
ecfc5424 |
272 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) |
a0d0e21e |
273 | char *getenv _((char *)); /* Usually in <stdlib.h> */ |
274 | #endif |
79072805 |
275 | |
276 | int |
a0d0e21e |
277 | perl_parse(sv_interp, xsinit, argc, argv, env) |
93a17b20 |
278 | PerlInterpreter *sv_interp; |
a0d0e21e |
279 | void (*xsinit)_((void)); |
280 | int argc; |
281 | char **argv; |
79072805 |
282 | char **env; |
8d063cd8 |
283 | { |
79072805 |
284 | register SV *sv; |
8d063cd8 |
285 | register char *s; |
1a30305b |
286 | char *scriptname = NULL; |
a0d0e21e |
287 | VOL bool dosearch = FALSE; |
13281fa4 |
288 | char *validarg = ""; |
748a9306 |
289 | AV* comppadlist; |
8d063cd8 |
290 | |
a687059c |
291 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
292 | #ifdef IAMSUID |
293 | #undef IAMSUID |
463ee0b2 |
294 | croak("suidperl is no longer needed since the kernel can now execute\n\ |
a687059c |
295 | setuid perl scripts securely.\n"); |
296 | #endif |
297 | #endif |
298 | |
79072805 |
299 | if (!(curinterp = sv_interp)) |
300 | return 255; |
301 | |
6e72f9df |
302 | #if defined(NeXT) && defined(__DYNAMIC__) |
303 | _dyld_lookup_and_bind |
304 | ("__environ", (unsigned long *) &environ_pointer, NULL); |
305 | #endif /* environ */ |
306 | |
ac58e20f |
307 | origargv = argv; |
308 | origargc = argc; |
a0d0e21e |
309 | #ifndef VMS /* VMS doesn't have environ array */ |
fe14fcc3 |
310 | origenviron = environ; |
a0d0e21e |
311 | #endif |
ab821d7f |
312 | e_tmpname = Nullch; |
a0d0e21e |
313 | |
314 | if (do_undump) { |
315 | |
316 | /* Come here if running an undumped a.out. */ |
317 | |
318 | origfilename = savepv(argv[0]); |
319 | do_undump = FALSE; |
320 | cxstack_ix = -1; /* start label stack again */ |
748a9306 |
321 | init_ids(); |
a0d0e21e |
322 | init_postdump_symbols(argc,argv,env); |
323 | return 0; |
324 | } |
325 | |
326 | if (main_root) |
327 | op_free(main_root); |
328 | main_root = 0; |
79072805 |
329 | |
a5f75d66 |
330 | switch (Sigsetjmp(top_env,1)) { |
79072805 |
331 | case 1: |
748a9306 |
332 | #ifdef VMS |
79072805 |
333 | statusvalue = 255; |
748a9306 |
334 | #else |
335 | statusvalue = 1; |
336 | #endif |
79072805 |
337 | case 2: |
8990e307 |
338 | curstash = defstash; |
339 | if (endav) |
340 | calllist(endav); |
79072805 |
341 | return(statusvalue); /* my_exit() was called */ |
342 | case 3: |
760ac839 |
343 | PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); |
8990e307 |
344 | return 1; |
79072805 |
345 | } |
346 | |
79072805 |
347 | sv_setpvn(linestr,"",0); |
348 | sv = newSVpv("",0); /* first used for -I flags */ |
8990e307 |
349 | SAVEFREESV(sv); |
79072805 |
350 | init_main_stash(); |
33b78306 |
351 | for (argc--,argv++; argc > 0; argc--,argv++) { |
8d063cd8 |
352 | if (argv[0][0] != '-' || !argv[0][1]) |
353 | break; |
13281fa4 |
354 | #ifdef DOSUID |
355 | if (*validarg) |
356 | validarg = " PHOOEY "; |
357 | else |
358 | validarg = argv[0]; |
359 | #endif |
360 | s = argv[0]+1; |
8d063cd8 |
361 | reswitch: |
13281fa4 |
362 | switch (*s) { |
27e2fb84 |
363 | case '0': |
2304df62 |
364 | case 'F': |
378cc40b |
365 | case 'a': |
33b78306 |
366 | case 'c': |
a687059c |
367 | case 'd': |
8d063cd8 |
368 | case 'D': |
4633a7c4 |
369 | case 'h': |
33b78306 |
370 | case 'i': |
fe14fcc3 |
371 | case 'l': |
1a30305b |
372 | case 'M': |
373 | case 'm': |
33b78306 |
374 | case 'n': |
375 | case 'p': |
79072805 |
376 | case 's': |
463ee0b2 |
377 | case 'T': |
33b78306 |
378 | case 'u': |
379 | case 'U': |
380 | case 'v': |
381 | case 'w': |
382 | if (s = moreswitches(s)) |
383 | goto reswitch; |
8d063cd8 |
384 | break; |
33b78306 |
385 | |
8d063cd8 |
386 | case 'e': |
a687059c |
387 | if (euid != uid || egid != gid) |
463ee0b2 |
388 | croak("No -e allowed in setuid scripts"); |
8d063cd8 |
389 | if (!e_fp) { |
a0d0e21e |
390 | e_tmpname = savepv(TMPPATH); |
a687059c |
391 | (void)mktemp(e_tmpname); |
83025b21 |
392 | if (!*e_tmpname) |
463ee0b2 |
393 | croak("Can't mktemp()"); |
760ac839 |
394 | e_fp = PerlIO_open(e_tmpname,"w"); |
33b78306 |
395 | if (!e_fp) |
463ee0b2 |
396 | croak("Cannot open temporary file"); |
8d063cd8 |
397 | } |
552a7a9b |
398 | if (*++s) |
399 | PerlIO_puts(e_fp,s); |
400 | else if (argv[1]) { |
760ac839 |
401 | PerlIO_puts(e_fp,argv[1]); |
33b78306 |
402 | argc--,argv++; |
403 | } |
552a7a9b |
404 | else |
405 | croak("No code specified for -e"); |
760ac839 |
406 | (void)PerlIO_putc(e_fp,'\n'); |
8d063cd8 |
407 | break; |
408 | case 'I': |
463ee0b2 |
409 | taint_not("-I"); |
79072805 |
410 | sv_catpv(sv,"-"); |
411 | sv_catpv(sv,s); |
412 | sv_catpv(sv," "); |
a687059c |
413 | if (*++s) { |
a0d0e21e |
414 | av_push(GvAVn(incgv),newSVpv(s,0)); |
378cc40b |
415 | } |
33b78306 |
416 | else if (argv[1]) { |
a0d0e21e |
417 | av_push(GvAVn(incgv),newSVpv(argv[1],0)); |
79072805 |
418 | sv_catpv(sv,argv[1]); |
8d063cd8 |
419 | argc--,argv++; |
79072805 |
420 | sv_catpv(sv," "); |
8d063cd8 |
421 | } |
422 | break; |
8d063cd8 |
423 | case 'P': |
463ee0b2 |
424 | taint_not("-P"); |
8d063cd8 |
425 | preprocess = TRUE; |
13281fa4 |
426 | s++; |
8d063cd8 |
427 | goto reswitch; |
378cc40b |
428 | case 'S': |
463ee0b2 |
429 | taint_not("-S"); |
378cc40b |
430 | dosearch = TRUE; |
13281fa4 |
431 | s++; |
378cc40b |
432 | goto reswitch; |
1a30305b |
433 | case 'V': |
434 | if (!preambleav) |
435 | preambleav = newAV(); |
436 | av_push(preambleav, newSVpv("use Config qw(myconfig config_vars)",0)); |
437 | if (*++s != ':') { |
6e72f9df |
438 | Sv = newSVpv("print myconfig();",0); |
439 | #ifdef VMS |
440 | sv_catpv(Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\","); |
441 | #else |
442 | sv_catpv(Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\","); |
443 | #endif |
444 | #if defined(DEBUGGING) || defined(NOEMBED) || defined(MULTIPLICITY) |
445 | strcpy(buf,"\" Compile-time options:"); |
446 | # ifdef DEBUGGING |
447 | strcat(buf," DEBUGGING"); |
448 | # endif |
449 | # ifdef NOEMBED |
450 | strcat(buf," NOEMBED"); |
451 | # endif |
452 | # ifdef MULTIPLICITY |
453 | strcat(buf," MULTIPLICITY"); |
454 | # endif |
455 | strcat(buf,"\\n\","); |
456 | sv_catpv(Sv,buf); |
457 | #endif |
458 | #if defined(LOCAL_PATCH_COUNT) |
459 | if (LOCAL_PATCH_COUNT > 0) |
460 | { int i; |
461 | sv_catpv(Sv,"print \" Locally applied patches:\\n\","); |
462 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { |
463 | if (localpatches[i]) { |
464 | sprintf(buf,"\" \\t%s\\n\",",localpatches[i]); |
465 | sv_catpv(Sv,buf); |
466 | } |
467 | } |
468 | } |
469 | #endif |
470 | sprintf(buf,"\" Built under %s\\n\",",OSNAME); |
471 | sv_catpv(Sv,buf); |
472 | #ifdef __DATE__ |
473 | # ifdef __TIME__ |
474 | sprintf(buf,"\" Compiled at %s %s\\n\"",__DATE__,__TIME__); |
475 | # else |
476 | sprintf(buf,"\" Compiled on %s\\n\"",__DATE__); |
477 | # endif |
478 | sv_catpv(Sv,buf); |
479 | #endif |
480 | sv_catpv(Sv,"; $\"=\"\\n \"; print \" \\@INC:\\n @INC\\n\""); |
1a30305b |
481 | } |
482 | else { |
483 | Sv = newSVpv("config_vars(qw(",0); |
484 | sv_catpv(Sv, ++s); |
485 | sv_catpv(Sv, "))"); |
486 | s += strlen(s); |
487 | } |
488 | av_push(preambleav, Sv); |
c07a80fd |
489 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
1a30305b |
490 | goto reswitch; |
33b78306 |
491 | case 'x': |
492 | doextract = TRUE; |
13281fa4 |
493 | s++; |
33b78306 |
494 | if (*s) |
a0d0e21e |
495 | cddir = savepv(s); |
33b78306 |
496 | break; |
8d063cd8 |
497 | case '-': |
498 | argc--,argv++; |
499 | goto switch_end; |
500 | case 0: |
501 | break; |
502 | default: |
463ee0b2 |
503 | croak("Unrecognized switch: -%s",s); |
8d063cd8 |
504 | } |
505 | } |
506 | switch_end: |
1a30305b |
507 | if (!scriptname) |
508 | scriptname = argv[0]; |
8d063cd8 |
509 | if (e_fp) { |
760ac839 |
510 | if (PerlIO_flush(e_fp) || PerlIO_error(e_fp) || PerlIO_close(e_fp)) |
2304df62 |
511 | croak("Can't write to temp file for -e: %s", Strerror(errno)); |
ab821d7f |
512 | e_fp = Nullfp; |
8d063cd8 |
513 | argc++,argv--; |
45d8adaa |
514 | scriptname = e_tmpname; |
8d063cd8 |
515 | } |
79072805 |
516 | else if (scriptname == Nullch) { |
517 | #ifdef MSDOS |
760ac839 |
518 | if ( isatty(PerlIO_fileno(PerlIO_stdin())) ) |
79072805 |
519 | moreswitches("v"); |
fe14fcc3 |
520 | #endif |
79072805 |
521 | scriptname = "-"; |
522 | } |
fe14fcc3 |
523 | |
79072805 |
524 | init_perllib(); |
8d063cd8 |
525 | |
79072805 |
526 | open_script(scriptname,dosearch,sv); |
8d063cd8 |
527 | |
96436eeb |
528 | validate_suid(validarg, scriptname); |
378cc40b |
529 | |
79072805 |
530 | if (doextract) |
531 | find_beginning(); |
532 | |
748a9306 |
533 | compcv = (CV*)NEWSV(1104,0); |
534 | sv_upgrade((SV *)compcv, SVt_PVCV); |
535 | |
6e72f9df |
536 | comppad = newAV(); |
79072805 |
537 | av_push(comppad, Nullsv); |
538 | curpad = AvARRAY(comppad); |
6e72f9df |
539 | comppad_name = newAV(); |
8990e307 |
540 | comppad_name_fill = 0; |
541 | min_intro_pending = 0; |
79072805 |
542 | padix = 0; |
543 | |
748a9306 |
544 | comppadlist = newAV(); |
545 | AvREAL_off(comppadlist); |
8e07c86e |
546 | av_store(comppadlist, 0, (SV*)comppad_name); |
547 | av_store(comppadlist, 1, (SV*)comppad); |
748a9306 |
548 | CvPADLIST(compcv) = comppadlist; |
549 | |
6e72f9df |
550 | boot_core_UNIVERSAL(); |
a0d0e21e |
551 | if (xsinit) |
552 | (*xsinit)(); /* in case linked C routines want magical variables */ |
748a9306 |
553 | #ifdef VMS |
554 | init_os_extras(); |
555 | #endif |
93a17b20 |
556 | |
93a17b20 |
557 | init_predump_symbols(); |
8990e307 |
558 | if (!do_undump) |
559 | init_postdump_symbols(argc,argv,env); |
93a17b20 |
560 | |
79072805 |
561 | init_lexer(); |
562 | |
563 | /* now parse the script */ |
564 | |
565 | error_count = 0; |
566 | if (yyparse() || error_count) { |
567 | if (minus_c) |
463ee0b2 |
568 | croak("%s had compilation errors.\n", origfilename); |
79072805 |
569 | else { |
463ee0b2 |
570 | croak("Execution of %s aborted due to compilation errors.\n", |
79072805 |
571 | origfilename); |
378cc40b |
572 | } |
79072805 |
573 | } |
574 | curcop->cop_line = 0; |
575 | curstash = defstash; |
576 | preprocess = FALSE; |
ab821d7f |
577 | if (e_tmpname) { |
79072805 |
578 | (void)UNLINK(e_tmpname); |
ab821d7f |
579 | Safefree(e_tmpname); |
580 | e_tmpname = Nullch; |
378cc40b |
581 | } |
a687059c |
582 | |
93a17b20 |
583 | /* now that script is parsed, we can modify record separator */ |
c07a80fd |
584 | SvREFCNT_dec(rs); |
585 | rs = SvREFCNT_inc(nrs); |
586 | sv_setsv(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), rs); |
45d8adaa |
587 | |
79072805 |
588 | if (do_undump) |
589 | my_unexec(); |
590 | |
8990e307 |
591 | if (dowarn) |
592 | gv_check(defstash); |
593 | |
a0d0e21e |
594 | LEAVE; |
595 | FREETMPS; |
c07a80fd |
596 | |
597 | #ifdef DEBUGGING_MSTATS |
598 | if ((s=getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) |
599 | dump_mstats("after compilation:"); |
600 | #endif |
601 | |
a0d0e21e |
602 | ENTER; |
603 | restartop = 0; |
79072805 |
604 | return 0; |
605 | } |
606 | |
607 | int |
608 | perl_run(sv_interp) |
93a17b20 |
609 | PerlInterpreter *sv_interp; |
79072805 |
610 | { |
611 | if (!(curinterp = sv_interp)) |
612 | return 255; |
a5f75d66 |
613 | switch (Sigsetjmp(top_env,1)) { |
79072805 |
614 | case 1: |
615 | cxstack_ix = -1; /* start context stack again */ |
616 | break; |
617 | case 2: |
618 | curstash = defstash; |
93a17b20 |
619 | if (endav) |
620 | calllist(endav); |
a0d0e21e |
621 | FREETMPS; |
c07a80fd |
622 | #ifdef DEBUGGING_MSTATS |
623 | if (getenv("PERL_DEBUG_MSTATS")) |
624 | dump_mstats("after execution: "); |
625 | #endif |
93a17b20 |
626 | return(statusvalue); /* my_exit() was called */ |
79072805 |
627 | case 3: |
628 | if (!restartop) { |
760ac839 |
629 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e |
630 | FREETMPS; |
8990e307 |
631 | return 1; |
83025b21 |
632 | } |
6e72f9df |
633 | if (curstack != mainstack) { |
79072805 |
634 | dSP; |
6e72f9df |
635 | SWITCHSTACK(curstack, mainstack); |
79072805 |
636 | } |
637 | break; |
8d063cd8 |
638 | } |
79072805 |
639 | |
760ac839 |
640 | DEBUG_r(PerlIO_printf(PerlIO_stderr(), "%s $` $& $' support.\n", |
6e72f9df |
641 | sawampersand ? "Enabling" : "Omitting")); |
642 | |
79072805 |
643 | if (!restartop) { |
644 | DEBUG_x(dump_all()); |
760ac839 |
645 | DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); |
79072805 |
646 | |
647 | if (minus_c) { |
760ac839 |
648 | PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", origfilename); |
79072805 |
649 | my_exit(0); |
650 | } |
a0d0e21e |
651 | if (perldb && DBsingle) |
652 | sv_setiv(DBsingle, 1); |
45d8adaa |
653 | } |
79072805 |
654 | |
655 | /* do it */ |
656 | |
657 | if (restartop) { |
658 | op = restartop; |
659 | restartop = 0; |
ab821d7f |
660 | runops(); |
79072805 |
661 | } |
662 | else if (main_start) { |
663 | op = main_start; |
ab821d7f |
664 | runops(); |
79072805 |
665 | } |
79072805 |
666 | |
667 | my_exit(0); |
a0d0e21e |
668 | return 0; |
79072805 |
669 | } |
670 | |
671 | void |
672 | my_exit(status) |
748a9306 |
673 | U32 status; |
79072805 |
674 | { |
a0d0e21e |
675 | register CONTEXT *cx; |
676 | I32 gimme; |
677 | SV **newsp; |
678 | |
748a9306 |
679 | statusvalue = FIXSTATUS(status); |
a0d0e21e |
680 | if (cxstack_ix >= 0) { |
681 | if (cxstack_ix > 0) |
682 | dounwind(0); |
683 | POPBLOCK(cx,curpm); |
684 | LEAVE; |
685 | } |
a5f75d66 |
686 | Siglongjmp(top_env, 2); |
79072805 |
687 | } |
688 | |
a0d0e21e |
689 | SV* |
690 | perl_get_sv(name, create) |
691 | char* name; |
692 | I32 create; |
693 | { |
694 | GV* gv = gv_fetchpv(name, create, SVt_PV); |
695 | if (gv) |
696 | return GvSV(gv); |
697 | return Nullsv; |
698 | } |
699 | |
700 | AV* |
701 | perl_get_av(name, create) |
702 | char* name; |
703 | I32 create; |
704 | { |
705 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); |
706 | if (create) |
707 | return GvAVn(gv); |
708 | if (gv) |
709 | return GvAV(gv); |
710 | return Nullav; |
711 | } |
712 | |
713 | HV* |
714 | perl_get_hv(name, create) |
715 | char* name; |
716 | I32 create; |
717 | { |
718 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); |
719 | if (create) |
720 | return GvHVn(gv); |
721 | if (gv) |
722 | return GvHV(gv); |
723 | return Nullhv; |
724 | } |
725 | |
726 | CV* |
727 | perl_get_cv(name, create) |
728 | char* name; |
729 | I32 create; |
730 | { |
731 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); |
732 | if (create && !GvCV(gv)) |
733 | return newSUB(start_subparse(), |
734 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
4633a7c4 |
735 | Nullop, |
a0d0e21e |
736 | Nullop); |
737 | if (gv) |
738 | return GvCV(gv); |
739 | return Nullcv; |
740 | } |
741 | |
79072805 |
742 | /* Be sure to refetch the stack pointer after calling these routines. */ |
743 | |
a0d0e21e |
744 | I32 |
745 | perl_call_argv(subname, flags, argv) |
8990e307 |
746 | char *subname; |
a0d0e21e |
747 | I32 flags; /* See G_* flags in cop.h */ |
748 | register char **argv; /* null terminated arg list */ |
8990e307 |
749 | { |
a0d0e21e |
750 | dSP; |
8990e307 |
751 | |
a0d0e21e |
752 | PUSHMARK(sp); |
753 | if (argv) { |
8990e307 |
754 | while (*argv) { |
a0d0e21e |
755 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 |
756 | argv++; |
757 | } |
a0d0e21e |
758 | PUTBACK; |
8990e307 |
759 | } |
a0d0e21e |
760 | return perl_call_pv(subname, flags); |
8990e307 |
761 | } |
762 | |
a0d0e21e |
763 | I32 |
764 | perl_call_pv(subname, flags) |
765 | char *subname; /* name of the subroutine */ |
766 | I32 flags; /* See G_* flags in cop.h */ |
767 | { |
768 | return perl_call_sv((SV*)perl_get_cv(subname, TRUE), flags); |
769 | } |
770 | |
771 | I32 |
772 | perl_call_method(methname, flags) |
773 | char *methname; /* name of the subroutine */ |
774 | I32 flags; /* See G_* flags in cop.h */ |
775 | { |
776 | dSP; |
777 | OP myop; |
778 | if (!op) |
779 | op = &myop; |
780 | XPUSHs(sv_2mortal(newSVpv(methname,0))); |
781 | PUTBACK; |
782 | pp_method(); |
783 | return perl_call_sv(*stack_sp--, flags); |
784 | } |
785 | |
786 | /* May be called with any of a CV, a GV, or an SV containing the name. */ |
787 | I32 |
788 | perl_call_sv(sv, flags) |
789 | SV* sv; |
790 | I32 flags; /* See G_* flags in cop.h */ |
791 | { |
792 | LOGOP myop; /* fake syntax tree node */ |
793 | SV** sp = stack_sp; |
794 | I32 oldmark = TOPMARK; |
795 | I32 retval; |
a5f75d66 |
796 | Sigjmp_buf oldtop; |
a0d0e21e |
797 | I32 oldscope; |
6e72f9df |
798 | static CV *DBcv; |
a0d0e21e |
799 | |
800 | if (flags & G_DISCARD) { |
801 | ENTER; |
802 | SAVETMPS; |
803 | } |
804 | |
805 | SAVESPTR(op); |
806 | op = (OP*)&myop; |
807 | Zero(op, 1, LOGOP); |
808 | EXTEND(stack_sp, 1); |
809 | *++stack_sp = sv; |
810 | oldscope = scopestack_ix; |
811 | |
812 | if (!(flags & G_NOARGS)) |
813 | myop.op_flags = OPf_STACKED; |
814 | myop.op_next = Nullop; |
815 | myop.op_flags |= OPf_KNOW; |
816 | if (flags & G_ARRAY) |
817 | myop.op_flags |= OPf_LIST; |
818 | |
6e72f9df |
819 | if (perldb && curstash != debstash |
820 | && (DBcv || (DBcv = GvCV(DBsub)))) /* to handle first BEGIN of -d */ |
821 | op->op_private |= OPpENTERSUB_DB; |
822 | |
a0d0e21e |
823 | if (flags & G_EVAL) { |
a5f75d66 |
824 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
a0d0e21e |
825 | |
826 | cLOGOP->op_other = op; |
827 | markstack_ptr--; |
4633a7c4 |
828 | /* we're trying to emulate pp_entertry() here */ |
829 | { |
830 | register CONTEXT *cx; |
831 | I32 gimme = GIMME; |
832 | |
833 | ENTER; |
834 | SAVETMPS; |
835 | |
836 | push_return(op->op_next); |
837 | PUSHBLOCK(cx, CXt_EVAL, stack_sp); |
838 | PUSHEVAL(cx, 0, 0); |
839 | eval_root = op; /* Only needed so that goto works right. */ |
840 | |
841 | in_eval = 1; |
842 | if (flags & G_KEEPERR) |
843 | in_eval |= 4; |
844 | else |
845 | sv_setpv(GvSV(errgv),""); |
846 | } |
a0d0e21e |
847 | markstack_ptr++; |
848 | |
849 | restart: |
a5f75d66 |
850 | switch (Sigsetjmp(top_env,1)) { |
a0d0e21e |
851 | case 0: |
852 | break; |
853 | case 1: |
748a9306 |
854 | #ifdef VMS |
a0d0e21e |
855 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 |
856 | #else |
857 | statusvalue = 1; |
858 | #endif |
a0d0e21e |
859 | /* FALL THROUGH */ |
860 | case 2: |
861 | /* my_exit() was called */ |
862 | curstash = defstash; |
863 | FREETMPS; |
a5f75d66 |
864 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e |
865 | if (statusvalue) |
866 | croak("Callback called exit"); |
867 | my_exit(statusvalue); |
868 | /* NOTREACHED */ |
869 | case 3: |
870 | if (restartop) { |
871 | op = restartop; |
872 | restartop = 0; |
873 | goto restart; |
874 | } |
875 | stack_sp = stack_base + oldmark; |
876 | if (flags & G_ARRAY) |
877 | retval = 0; |
878 | else { |
879 | retval = 1; |
880 | *++stack_sp = &sv_undef; |
881 | } |
882 | goto cleanup; |
883 | } |
884 | } |
885 | |
886 | if (op == (OP*)&myop) |
887 | op = pp_entersub(); |
888 | if (op) |
ab821d7f |
889 | runops(); |
a0d0e21e |
890 | retval = stack_sp - (stack_base + oldmark); |
4633a7c4 |
891 | if ((flags & G_EVAL) && !(flags & G_KEEPERR)) |
892 | sv_setpv(GvSV(errgv),""); |
a0d0e21e |
893 | |
894 | cleanup: |
895 | if (flags & G_EVAL) { |
896 | if (scopestack_ix > oldscope) { |
a0a2876f |
897 | SV **newsp; |
898 | PMOP *newpm; |
899 | I32 gimme; |
900 | register CONTEXT *cx; |
901 | I32 optype; |
902 | |
903 | POPBLOCK(cx,newpm); |
904 | POPEVAL(cx); |
905 | pop_return(); |
906 | curpm = newpm; |
907 | LEAVE; |
a0d0e21e |
908 | } |
a5f75d66 |
909 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e |
910 | } |
911 | if (flags & G_DISCARD) { |
912 | stack_sp = stack_base + oldmark; |
913 | retval = 0; |
914 | FREETMPS; |
915 | LEAVE; |
916 | } |
917 | return retval; |
918 | } |
919 | |
6e72f9df |
920 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 |
921 | |
a0d0e21e |
922 | I32 |
4633a7c4 |
923 | perl_eval_sv(sv, flags) |
8990e307 |
924 | SV* sv; |
4633a7c4 |
925 | I32 flags; /* See G_* flags in cop.h */ |
a0d0e21e |
926 | { |
927 | UNOP myop; /* fake syntax tree node */ |
4633a7c4 |
928 | SV** sp = stack_sp; |
929 | I32 oldmark = sp - stack_base; |
930 | I32 retval; |
a5f75d66 |
931 | Sigjmp_buf oldtop; |
4633a7c4 |
932 | I32 oldscope; |
79072805 |
933 | |
4633a7c4 |
934 | if (flags & G_DISCARD) { |
935 | ENTER; |
936 | SAVETMPS; |
937 | } |
938 | |
79072805 |
939 | SAVESPTR(op); |
79072805 |
940 | op = (OP*)&myop; |
a0d0e21e |
941 | Zero(op, 1, UNOP); |
4633a7c4 |
942 | EXTEND(stack_sp, 1); |
943 | *++stack_sp = sv; |
944 | oldscope = scopestack_ix; |
79072805 |
945 | |
4633a7c4 |
946 | if (!(flags & G_NOARGS)) |
947 | myop.op_flags = OPf_STACKED; |
79072805 |
948 | myop.op_next = Nullop; |
6e72f9df |
949 | myop.op_type = OP_ENTEREVAL; |
4633a7c4 |
950 | myop.op_flags |= OPf_KNOW; |
6e72f9df |
951 | if (flags & G_KEEPERR) |
952 | myop.op_flags |= OPf_SPECIAL; |
4633a7c4 |
953 | if (flags & G_ARRAY) |
6e72f9df |
954 | myop.op_flags |= OPf_LIST; |
79072805 |
955 | |
a5f75d66 |
956 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
4633a7c4 |
957 | |
958 | restart: |
a5f75d66 |
959 | switch (Sigsetjmp(top_env,1)) { |
4633a7c4 |
960 | case 0: |
961 | break; |
962 | case 1: |
963 | #ifdef VMS |
964 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
965 | #else |
966 | statusvalue = 1; |
967 | #endif |
968 | /* FALL THROUGH */ |
969 | case 2: |
970 | /* my_exit() was called */ |
971 | curstash = defstash; |
972 | FREETMPS; |
a5f75d66 |
973 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
4633a7c4 |
974 | if (statusvalue) |
975 | croak("Callback called exit"); |
976 | my_exit(statusvalue); |
977 | /* NOTREACHED */ |
978 | case 3: |
979 | if (restartop) { |
980 | op = restartop; |
981 | restartop = 0; |
982 | goto restart; |
983 | } |
984 | stack_sp = stack_base + oldmark; |
985 | if (flags & G_ARRAY) |
986 | retval = 0; |
987 | else { |
988 | retval = 1; |
989 | *++stack_sp = &sv_undef; |
990 | } |
991 | goto cleanup; |
992 | } |
993 | |
994 | if (op == (OP*)&myop) |
995 | op = pp_entereval(); |
996 | if (op) |
ab821d7f |
997 | runops(); |
4633a7c4 |
998 | retval = stack_sp - (stack_base + oldmark); |
6e72f9df |
999 | if (!(flags & G_KEEPERR)) |
4633a7c4 |
1000 | sv_setpv(GvSV(errgv),""); |
1001 | |
1002 | cleanup: |
a5f75d66 |
1003 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
4633a7c4 |
1004 | if (flags & G_DISCARD) { |
1005 | stack_sp = stack_base + oldmark; |
1006 | retval = 0; |
1007 | FREETMPS; |
1008 | LEAVE; |
1009 | } |
1010 | return retval; |
1011 | } |
1012 | |
1013 | /* Require a module. */ |
1014 | |
1015 | void |
1016 | perl_require_pv(pv) |
1017 | char* pv; |
1018 | { |
1019 | SV* sv = sv_newmortal(); |
1020 | sv_setpv(sv, "require '"); |
1021 | sv_catpv(sv, pv); |
1022 | sv_catpv(sv, "'"); |
1023 | perl_eval_sv(sv, G_DISCARD); |
79072805 |
1024 | } |
1025 | |
79072805 |
1026 | void |
79072805 |
1027 | magicname(sym,name,namlen) |
1028 | char *sym; |
1029 | char *name; |
1030 | I32 namlen; |
1031 | { |
1032 | register GV *gv; |
1033 | |
85e6fe83 |
1034 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 |
1035 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
1036 | } |
1037 | |
748a9306 |
1038 | #if defined(DOSISH) |
1039 | # define PERLLIB_SEP ';' |
79072805 |
1040 | #else |
232e078e |
1041 | # if defined(VMS) |
1042 | # define PERLLIB_SEP '|' |
1043 | # else |
748a9306 |
1044 | # define PERLLIB_SEP ':' |
232e078e |
1045 | # endif |
79072805 |
1046 | #endif |
760ac839 |
1047 | #ifndef PERLLIB_MANGLE |
1048 | # define PERLLIB_MANGLE(s,n) (s) |
1049 | #endif |
79072805 |
1050 | |
1051 | static void |
1052 | incpush(p) |
1053 | char *p; |
1054 | { |
1055 | char *s; |
1056 | |
1057 | if (!p) |
1058 | return; |
1059 | |
1060 | /* Break at all separators */ |
1061 | while (*p) { |
1062 | /* First, skip any consecutive separators */ |
1063 | while ( *p == PERLLIB_SEP ) { |
1064 | /* Uncomment the next line for PATH semantics */ |
a0d0e21e |
1065 | /* av_push(GvAVn(incgv), newSVpv(".", 1)); */ |
79072805 |
1066 | p++; |
1067 | } |
93a17b20 |
1068 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { |
760ac839 |
1069 | av_push(GvAVn(incgv), newSVpv(PERLLIB_MANGLE(p, (STRLEN)(s - p)), |
1070 | (STRLEN)(s - p))); |
79072805 |
1071 | p = s + 1; |
1072 | } else { |
760ac839 |
1073 | av_push(GvAVn(incgv), newSVpv(PERLLIB_MANGLE(p, 0), 0)); |
79072805 |
1074 | break; |
1075 | } |
1076 | } |
1077 | } |
1078 | |
ab821d7f |
1079 | static void |
1a30305b |
1080 | usage(name) /* XXX move this out into a module ? */ |
4633a7c4 |
1081 | char *name; |
1082 | { |
ab821d7f |
1083 | /* This message really ought to be max 23 lines. |
1084 | * Removed -h because the user already knows that opton. Others? */ |
1085 | printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name); |
4633a7c4 |
1086 | printf("\n -0[octal] specify record separator (\\0, if no argument)"); |
ab821d7f |
1087 | printf("\n -a autosplit mode with -n or -p (splits $_ into @F)"); |
4633a7c4 |
1088 | printf("\n -c check syntax only (runs BEGIN and END blocks)"); |
1a30305b |
1089 | printf("\n -d[:debugger] run scripts under debugger"); |
4633a7c4 |
1090 | printf("\n -D[number/list] set debugging flags (argument is a bit mask or flags)"); |
ab821d7f |
1091 | printf("\n -e 'command' one line of script. Several -e's allowed. Omit [programfile]."); |
1092 | printf("\n -F/pattern/ split() pattern for autosplit (-a). The //'s are optional."); |
4633a7c4 |
1093 | printf("\n -i[extension] edit <> files in place (make backup if extension supplied)"); |
ab821d7f |
1094 | printf("\n -Idirectory specify @INC/#include directory (may be used more then once)"); |
4633a7c4 |
1095 | printf("\n -l[octal] enable line ending processing, specifies line teminator"); |
ab821d7f |
1096 | printf("\n -[mM][-]module.. executes `use/no module...' before executing your script."); |
4633a7c4 |
1097 | printf("\n -n assume 'while (<>) { ... }' loop arround your script"); |
1098 | printf("\n -p assume loop like -n but print line also like sed"); |
1099 | printf("\n -P run script through C preprocessor before compilation"); |
4633a7c4 |
1100 | printf("\n -s enable some switch parsing for switches after script name"); |
1101 | printf("\n -S look for the script using PATH environment variable"); |
1102 | printf("\n -T turn on tainting checks"); |
1103 | printf("\n -u dump core after parsing script"); |
1104 | printf("\n -U allow unsafe operations"); |
1105 | printf("\n -v print version number and patchlevel of perl"); |
1a30305b |
1106 | printf("\n -V[:variable] print perl configuration information"); |
ab821d7f |
1107 | printf("\n -w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT."); |
4633a7c4 |
1108 | printf("\n -x[directory] strip off text before #!perl line and perhaps cd to directory\n"); |
1109 | } |
1110 | |
79072805 |
1111 | /* This routine handles any switches that can be given during run */ |
1112 | |
1113 | char * |
1114 | moreswitches(s) |
1115 | char *s; |
1116 | { |
1117 | I32 numlen; |
c07a80fd |
1118 | U32 rschar; |
79072805 |
1119 | |
1120 | switch (*s) { |
1121 | case '0': |
c07a80fd |
1122 | rschar = scan_oct(s, 4, &numlen); |
1123 | SvREFCNT_dec(nrs); |
1124 | if (rschar & ~((U8)~0)) |
1125 | nrs = &sv_undef; |
1126 | else if (!rschar && numlen >= 2) |
1127 | nrs = newSVpv("", 0); |
1128 | else { |
1129 | char ch = rschar; |
1130 | nrs = newSVpv(&ch, 1); |
79072805 |
1131 | } |
1132 | return s + numlen; |
2304df62 |
1133 | case 'F': |
1134 | minus_F = TRUE; |
a0d0e21e |
1135 | splitstr = savepv(s + 1); |
2304df62 |
1136 | s += strlen(s); |
1137 | return s; |
79072805 |
1138 | case 'a': |
1139 | minus_a = TRUE; |
1140 | s++; |
1141 | return s; |
1142 | case 'c': |
1143 | minus_c = TRUE; |
1144 | s++; |
1145 | return s; |
1146 | case 'd': |
463ee0b2 |
1147 | taint_not("-d"); |
4633a7c4 |
1148 | s++; |
c07a80fd |
1149 | if (*s == ':' || *s == '=') { |
4633a7c4 |
1150 | sprintf(buf, "use Devel::%s;", ++s); |
1151 | s += strlen(s); |
1152 | my_setenv("PERL5DB",buf); |
1153 | } |
a0d0e21e |
1154 | if (!perldb) { |
1155 | perldb = TRUE; |
1156 | init_debugger(); |
1157 | } |
79072805 |
1158 | return s; |
1159 | case 'D': |
1160 | #ifdef DEBUGGING |
463ee0b2 |
1161 | taint_not("-D"); |
79072805 |
1162 | if (isALPHA(s[1])) { |
8990e307 |
1163 | static char debopts[] = "psltocPmfrxuLHXD"; |
79072805 |
1164 | char *d; |
1165 | |
93a17b20 |
1166 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
79072805 |
1167 | debug |= 1 << (d - debopts); |
1168 | } |
1169 | else { |
1170 | debug = atoi(s+1); |
1171 | for (s++; isDIGIT(*s); s++) ; |
1172 | } |
8990e307 |
1173 | debug |= 0x80000000; |
79072805 |
1174 | #else |
1175 | warn("Recompile perl with -DDEBUGGING to use -D switch\n"); |
a0d0e21e |
1176 | for (s++; isALNUM(*s); s++) ; |
79072805 |
1177 | #endif |
1178 | /*SUPPRESS 530*/ |
1179 | return s; |
4633a7c4 |
1180 | case 'h': |
1181 | usage(origargv[0]); |
1182 | exit(0); |
79072805 |
1183 | case 'i': |
1184 | if (inplace) |
1185 | Safefree(inplace); |
a0d0e21e |
1186 | inplace = savepv(s+1); |
79072805 |
1187 | /*SUPPRESS 530*/ |
1188 | for (s = inplace; *s && !isSPACE(*s); s++) ; |
1189 | *s = '\0'; |
1190 | break; |
1191 | case 'I': |
463ee0b2 |
1192 | taint_not("-I"); |
79072805 |
1193 | if (*++s) { |
748a9306 |
1194 | char *e; |
1195 | for (e = s; *e && !isSPACE(*e); e++) ; |
1196 | av_push(GvAVn(incgv),newSVpv(s,e-s)); |
1197 | if (*e) |
1198 | return e; |
79072805 |
1199 | } |
1200 | else |
463ee0b2 |
1201 | croak("No space allowed after -I"); |
79072805 |
1202 | break; |
1203 | case 'l': |
1204 | minus_l = TRUE; |
1205 | s++; |
a0d0e21e |
1206 | if (ors) |
1207 | Safefree(ors); |
79072805 |
1208 | if (isDIGIT(*s)) { |
a0d0e21e |
1209 | ors = savepv("\n"); |
79072805 |
1210 | orslen = 1; |
1211 | *ors = scan_oct(s, 3 + (*s == '0'), &numlen); |
1212 | s += numlen; |
1213 | } |
1214 | else { |
c07a80fd |
1215 | if (RsPARA(nrs)) { |
6e72f9df |
1216 | ors = "\n\n"; |
c07a80fd |
1217 | orslen = 2; |
1218 | } |
1219 | else |
1220 | ors = SvPV(nrs, orslen); |
6e72f9df |
1221 | ors = savepvn(ors, orslen); |
79072805 |
1222 | } |
1223 | return s; |
1a30305b |
1224 | case 'M': |
1225 | taint_not("-M"); /* XXX ? */ |
1226 | /* FALL THROUGH */ |
1227 | case 'm': |
1228 | taint_not("-m"); /* XXX ? */ |
1229 | if (*++s) { |
a5f75d66 |
1230 | char *start; |
1231 | char *use = "use "; |
1232 | /* -M-foo == 'no foo' */ |
1233 | if (*s == '-') { use = "no "; ++s; } |
1234 | Sv = newSVpv(use,0); |
1235 | start = s; |
1a30305b |
1236 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd |
1237 | while(isALNUM(*s) || *s==':') ++s; |
1238 | if (*s != '=') { |
1239 | sv_catpv(Sv, start); |
1240 | if (*(start-1) == 'm') { |
1241 | if (*s != '\0') |
1242 | croak("Can't use '%c' after -mname", *s); |
1243 | sv_catpv( Sv, " ()"); |
1244 | } |
1245 | } else { |
1246 | sv_catpvn(Sv, start, s-start); |
a5f75d66 |
1247 | sv_catpv(Sv, " split(/,/,q{"); |
c07a80fd |
1248 | sv_catpv(Sv, ++s); |
a5f75d66 |
1249 | sv_catpv(Sv, "})"); |
c07a80fd |
1250 | } |
1a30305b |
1251 | s += strlen(s); |
c07a80fd |
1252 | if (preambleav == NULL) |
1253 | preambleav = newAV(); |
1254 | av_push(preambleav, Sv); |
1a30305b |
1255 | } |
1256 | else |
1257 | croak("No space allowed after -%c", *(s-1)); |
1258 | return s; |
79072805 |
1259 | case 'n': |
1260 | minus_n = TRUE; |
1261 | s++; |
1262 | return s; |
1263 | case 'p': |
1264 | minus_p = TRUE; |
1265 | s++; |
1266 | return s; |
1267 | case 's': |
463ee0b2 |
1268 | taint_not("-s"); |
79072805 |
1269 | doswitches = TRUE; |
1270 | s++; |
1271 | return s; |
463ee0b2 |
1272 | case 'T': |
1273 | tainting = TRUE; |
1274 | s++; |
1275 | return s; |
79072805 |
1276 | case 'u': |
1277 | do_undump = TRUE; |
1278 | s++; |
1279 | return s; |
1280 | case 'U': |
1281 | unsafe = TRUE; |
1282 | s++; |
1283 | return s; |
1284 | case 'v': |
a5f75d66 |
1285 | #if defined(SUBVERSION) && SUBVERSION > 0 |
1286 | printf("\nThis is perl, version 5.%03d_%02d", PATCHLEVEL, SUBVERSION); |
1287 | #else |
1288 | printf("\nThis is perl, version %s",patchlevel); |
1289 | #endif |
1a30305b |
1290 | |
760ac839 |
1291 | printf("\n\nCopyright 1987-1996, Larry Wall\n"); |
1292 | printf("\n\t+ suidperl security patch"); |
79072805 |
1293 | #ifdef MSDOS |
760ac839 |
1294 | printf("MS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); |
4633a7c4 |
1295 | #endif |
79072805 |
1296 | #ifdef OS2 |
760ac839 |
1297 | printf("OS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" |
1298 | "Version 5 port Copyright (c) 1994-1996, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 |
1299 | #endif |
79072805 |
1300 | #ifdef atarist |
760ac839 |
1301 | printf("atariST series port, ++jrb bammi@cadence.com\n"); |
79072805 |
1302 | #endif |
760ac839 |
1303 | printf("\n\ |
79072805 |
1304 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
760ac839 |
1305 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n"); |
79072805 |
1306 | #ifdef MSDOS |
1307 | usage(origargv[0]); |
1308 | #endif |
1309 | exit(0); |
1310 | case 'w': |
1311 | dowarn = TRUE; |
1312 | s++; |
1313 | return s; |
a0d0e21e |
1314 | case '*': |
79072805 |
1315 | case ' ': |
1316 | if (s[1] == '-') /* Additional switches on #! line. */ |
1317 | return s+2; |
1318 | break; |
a0d0e21e |
1319 | case '-': |
79072805 |
1320 | case 0: |
1321 | case '\n': |
1322 | case '\t': |
1323 | break; |
a0d0e21e |
1324 | case 'P': |
1325 | if (preprocess) |
1326 | return s+1; |
1327 | /* FALL THROUGH */ |
79072805 |
1328 | default: |
a0d0e21e |
1329 | croak("Can't emulate -%.1s on #! line",s); |
79072805 |
1330 | } |
1331 | return Nullch; |
1332 | } |
1333 | |
1334 | /* compliments of Tom Christiansen */ |
1335 | |
1336 | /* unexec() can be found in the Gnu emacs distribution */ |
1337 | |
1338 | void |
1339 | my_unexec() |
1340 | { |
1341 | #ifdef UNEXEC |
1342 | int status; |
1343 | extern int etext; |
1344 | |
1345 | sprintf (buf, "%s.perldump", origfilename); |
1346 | sprintf (tokenbuf, "%s/perl", BIN); |
1347 | |
1348 | status = unexec(buf, tokenbuf, &etext, sbrk(0), 0); |
1349 | if (status) |
760ac839 |
1350 | PerlIO_printf(PerlIO_stderr(), "unexec of %s into %s failed!\n", tokenbuf, buf); |
a0d0e21e |
1351 | exit(status); |
79072805 |
1352 | #else |
a5f75d66 |
1353 | # ifdef VMS |
1354 | # include <lib$routines.h> |
1355 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ |
1356 | #else |
79072805 |
1357 | ABORT(); /* for use with undump */ |
1358 | #endif |
a5f75d66 |
1359 | #endif |
79072805 |
1360 | } |
1361 | |
1362 | static void |
1363 | init_main_stash() |
1364 | { |
463ee0b2 |
1365 | GV *gv; |
6e72f9df |
1366 | |
1367 | /* Note that strtab is a rather special HV. Assumptions are made |
1368 | about not iterating on it, and not adding tie magic to it. |
1369 | It is properly deallocated in perl_destruct() */ |
1370 | strtab = newHV(); |
1371 | HvSHAREKEYS_off(strtab); /* mandatory */ |
1372 | Newz(506,((XPVHV*)SvANY(strtab))->xhv_array, |
1373 | sizeof(HE*) * (((XPVHV*)SvANY(strtab))->xhv_max + 1), char); |
1374 | |
463ee0b2 |
1375 | curstash = defstash = newHV(); |
79072805 |
1376 | curstname = newSVpv("main",4); |
adbc6bb1 |
1377 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
1378 | SvREFCNT_dec(GvHV(gv)); |
1379 | GvHV(gv) = (HV*)SvREFCNT_inc(defstash); |
463ee0b2 |
1380 | SvREADONLY_on(gv); |
a0d0e21e |
1381 | HvNAME(defstash) = savepv("main"); |
85e6fe83 |
1382 | incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); |
a5f75d66 |
1383 | GvMULTI_on(incgv); |
a0d0e21e |
1384 | defgv = gv_fetchpv("_",TRUE, SVt_PVAV); |
4633a7c4 |
1385 | errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); |
a5f75d66 |
1386 | GvMULTI_on(errgv); |
552a7a9b |
1387 | sv_setpvn(GvSV(errgv), "", 0); |
8990e307 |
1388 | curstash = defstash; |
1389 | compiling.cop_stash = defstash; |
adbc6bb1 |
1390 | debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); |
4633a7c4 |
1391 | /* We must init $/ before switches are processed. */ |
1392 | sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1); |
79072805 |
1393 | } |
1394 | |
a0d0e21e |
1395 | #ifdef CAN_PROTOTYPE |
1396 | static void |
1397 | open_script(char *scriptname, bool dosearch, SV *sv) |
1398 | #else |
79072805 |
1399 | static void |
1400 | open_script(scriptname,dosearch,sv) |
1401 | char *scriptname; |
1402 | bool dosearch; |
1403 | SV *sv; |
a0d0e21e |
1404 | #endif |
79072805 |
1405 | { |
1406 | char *xfound = Nullch; |
1407 | char *xfailed = Nullch; |
1408 | register char *s; |
1409 | I32 len; |
a38d6535 |
1410 | int retval; |
1411 | #if defined(DOSISH) && !defined(OS2) && !defined(atarist) |
1412 | #define SEARCH_EXTS ".bat", ".cmd", NULL |
1413 | #endif |
ab821d7f |
1414 | #ifdef VMS |
1415 | # define SEARCH_EXTS ".pl", ".com", NULL |
1416 | #endif |
a38d6535 |
1417 | /* additional extensions to try in each dir if scriptname not found */ |
1418 | #ifdef SEARCH_EXTS |
1419 | char *ext[] = { SEARCH_EXTS }; |
1420 | int extidx = (strchr(scriptname,'.')) ? -1 : 0; /* has ext already */ |
1421 | #endif |
79072805 |
1422 | |
c07a80fd |
1423 | #ifdef VMS |
6e72f9df |
1424 | if (dosearch) { |
1425 | int hasdir, idx = 0, deftypes = 1; |
1426 | |
1427 | hasdir = (strpbrk(scriptname,":[</") != Nullch) ; |
1428 | /* The first time through, just add SEARCH_EXTS to whatever we |
1429 | * already have, so we can check for default file types. */ |
1430 | while (deftypes || (!hasdir && my_trnlnm("DCL$PATH",tokenbuf,idx++)) ) { |
1431 | if (deftypes) { deftypes = 0; *tokenbuf = '\0'; } |
c07a80fd |
1432 | strcat(tokenbuf,scriptname); |
1433 | #else /* !VMS */ |
93a17b20 |
1434 | if (dosearch && !strchr(scriptname, '/') && (s = getenv("PATH"))) { |
79072805 |
1435 | |
1436 | bufend = s + strlen(s); |
1437 | while (*s) { |
1438 | #ifndef DOSISH |
1439 | s = cpytill(tokenbuf,s,bufend,':',&len); |
1440 | #else |
1441 | #ifdef atarist |
1442 | for (len = 0; *s && *s != ',' && *s != ';'; tokenbuf[len++] = *s++); |
1443 | tokenbuf[len] = '\0'; |
1444 | #else |
1445 | for (len = 0; *s && *s != ';'; tokenbuf[len++] = *s++); |
1446 | tokenbuf[len] = '\0'; |
1447 | #endif |
1448 | #endif |
1449 | if (*s) |
1450 | s++; |
1451 | #ifndef DOSISH |
1452 | if (len && tokenbuf[len-1] != '/') |
1453 | #else |
1454 | #ifdef atarist |
1455 | if (len && ((tokenbuf[len-1] != '\\') && (tokenbuf[len-1] != '/'))) |
1456 | #else |
1457 | if (len && tokenbuf[len-1] != '\\') |
1458 | #endif |
1459 | #endif |
1460 | (void)strcat(tokenbuf+len,"/"); |
1461 | (void)strcat(tokenbuf+len,scriptname); |
c07a80fd |
1462 | #endif /* !VMS */ |
a38d6535 |
1463 | |
1464 | #ifdef SEARCH_EXTS |
1465 | len = strlen(tokenbuf); |
1466 | if (extidx > 0) /* reset after previous loop */ |
1467 | extidx = 0; |
1468 | do { |
1469 | #endif |
760ac839 |
1470 | DEBUG_p(PerlIO_printf(Perl_debug_log, "Looking for %s\n",tokenbuf)); |
a38d6535 |
1471 | retval = Stat(tokenbuf,&statbuf); |
1472 | #ifdef SEARCH_EXTS |
1473 | } while ( retval < 0 /* not there */ |
1474 | && extidx>=0 && ext[extidx] /* try an extension? */ |
1475 | && strcpy(tokenbuf+len, ext[extidx++]) |
1476 | ); |
1477 | #endif |
1478 | if (retval < 0) |
79072805 |
1479 | continue; |
1480 | if (S_ISREG(statbuf.st_mode) |
1481 | && cando(S_IRUSR,TRUE,&statbuf) && cando(S_IXUSR,TRUE,&statbuf)) { |
1482 | xfound = tokenbuf; /* bingo! */ |
1483 | break; |
1484 | } |
1485 | if (!xfailed) |
a0d0e21e |
1486 | xfailed = savepv(tokenbuf); |
79072805 |
1487 | } |
1488 | if (!xfound) |
463ee0b2 |
1489 | croak("Can't execute %s", xfailed ? xfailed : scriptname ); |
79072805 |
1490 | if (xfailed) |
1491 | Safefree(xfailed); |
1492 | scriptname = xfound; |
1493 | } |
1494 | |
96436eeb |
1495 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { |
1496 | char *s = scriptname + 8; |
1497 | fdscript = atoi(s); |
1498 | while (isDIGIT(*s)) |
1499 | s++; |
1500 | if (*s) |
1501 | scriptname = s + 1; |
1502 | } |
1503 | else |
1504 | fdscript = -1; |
ab821d7f |
1505 | origfilename = savepv(e_tmpname ? "-e" : scriptname); |
79072805 |
1506 | curcop->cop_filegv = gv_fetchfile(origfilename); |
1507 | if (strEQ(origfilename,"-")) |
1508 | scriptname = ""; |
96436eeb |
1509 | if (fdscript >= 0) { |
760ac839 |
1510 | rsfp = PerlIO_fdopen(fdscript,"r"); |
96436eeb |
1511 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
760ac839 |
1512 | fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ |
96436eeb |
1513 | #endif |
1514 | } |
1515 | else if (preprocess) { |
79072805 |
1516 | char *cpp = CPPSTDIN; |
1517 | |
1518 | if (strEQ(cpp,"cppstdin")) |
1519 | sprintf(tokenbuf, "%s/%s", SCRIPTDIR, cpp); |
1520 | else |
1521 | sprintf(tokenbuf, "%s", cpp); |
1522 | sv_catpv(sv,"-I"); |
fed7345c |
1523 | sv_catpv(sv,PRIVLIB_EXP); |
79072805 |
1524 | #ifdef MSDOS |
1525 | (void)sprintf(buf, "\ |
1526 | sed %s -e \"/^[^#]/b\" \ |
1527 | -e \"/^#[ ]*include[ ]/b\" \ |
1528 | -e \"/^#[ ]*define[ ]/b\" \ |
1529 | -e \"/^#[ ]*if[ ]/b\" \ |
1530 | -e \"/^#[ ]*ifdef[ ]/b\" \ |
1531 | -e \"/^#[ ]*ifndef[ ]/b\" \ |
1532 | -e \"/^#[ ]*else/b\" \ |
1533 | -e \"/^#[ ]*elif[ ]/b\" \ |
1534 | -e \"/^#[ ]*undef[ ]/b\" \ |
1535 | -e \"/^#[ ]*endif/b\" \ |
1536 | -e \"s/^#.*//\" \ |
1537 | %s | %s -C %s %s", |
1538 | (doextract ? "-e \"1,/^#/d\n\"" : ""), |
1539 | #else |
1540 | (void)sprintf(buf, "\ |
1541 | %s %s -e '/^[^#]/b' \ |
1542 | -e '/^#[ ]*include[ ]/b' \ |
1543 | -e '/^#[ ]*define[ ]/b' \ |
1544 | -e '/^#[ ]*if[ ]/b' \ |
1545 | -e '/^#[ ]*ifdef[ ]/b' \ |
1546 | -e '/^#[ ]*ifndef[ ]/b' \ |
1547 | -e '/^#[ ]*else/b' \ |
1548 | -e '/^#[ ]*elif[ ]/b' \ |
1549 | -e '/^#[ ]*undef[ ]/b' \ |
1550 | -e '/^#[ ]*endif/b' \ |
1551 | -e 's/^[ ]*#.*//' \ |
1552 | %s | %s -C %s %s", |
1553 | #ifdef LOC_SED |
1554 | LOC_SED, |
1555 | #else |
1556 | "sed", |
1557 | #endif |
1558 | (doextract ? "-e '1,/^#/d\n'" : ""), |
1559 | #endif |
463ee0b2 |
1560 | scriptname, tokenbuf, SvPV(sv, na), CPPMINUS); |
79072805 |
1561 | doextract = FALSE; |
1562 | #ifdef IAMSUID /* actually, this is caught earlier */ |
1563 | if (euid != uid && !euid) { /* if running suidperl */ |
1564 | #ifdef HAS_SETEUID |
1565 | (void)seteuid(uid); /* musn't stay setuid root */ |
1566 | #else |
1567 | #ifdef HAS_SETREUID |
85e6fe83 |
1568 | (void)setreuid((Uid_t)-1, uid); |
1569 | #else |
1570 | #ifdef HAS_SETRESUID |
1571 | (void)setresuid((Uid_t)-1, uid, (Uid_t)-1); |
79072805 |
1572 | #else |
1573 | setuid(uid); |
1574 | #endif |
1575 | #endif |
85e6fe83 |
1576 | #endif |
79072805 |
1577 | if (geteuid() != uid) |
463ee0b2 |
1578 | croak("Can't do seteuid!\n"); |
79072805 |
1579 | } |
1580 | #endif /* IAMSUID */ |
1581 | rsfp = my_popen(buf,"r"); |
1582 | } |
1583 | else if (!*scriptname) { |
463ee0b2 |
1584 | taint_not("program input from stdin"); |
760ac839 |
1585 | rsfp = PerlIO_stdin(); |
79072805 |
1586 | } |
96436eeb |
1587 | else { |
760ac839 |
1588 | rsfp = PerlIO_open(scriptname,"r"); |
96436eeb |
1589 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
760ac839 |
1590 | fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ |
96436eeb |
1591 | #endif |
1592 | } |
760ac839 |
1593 | if ((PerlIO*)rsfp == Nullfp) { |
13281fa4 |
1594 | #ifdef DOSUID |
a687059c |
1595 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
a0d0e21e |
1596 | if (euid && Stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 && |
13281fa4 |
1597 | statbuf.st_mode & (S_ISUID|S_ISGID)) { |
27e2fb84 |
1598 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c |
1599 | execv(buf, origargv); /* try again */ |
463ee0b2 |
1600 | croak("Can't do setuid\n"); |
13281fa4 |
1601 | } |
1602 | #endif |
1603 | #endif |
463ee0b2 |
1604 | croak("Can't open perl script \"%s\": %s\n", |
2304df62 |
1605 | SvPVX(GvSV(curcop->cop_filegv)), Strerror(errno)); |
13281fa4 |
1606 | } |
79072805 |
1607 | } |
8d063cd8 |
1608 | |
79072805 |
1609 | static void |
96436eeb |
1610 | validate_suid(validarg, scriptname) |
79072805 |
1611 | char *validarg; |
96436eeb |
1612 | char *scriptname; |
79072805 |
1613 | { |
96436eeb |
1614 | int which; |
1615 | |
13281fa4 |
1616 | /* do we need to emulate setuid on scripts? */ |
1617 | |
1618 | /* This code is for those BSD systems that have setuid #! scripts disabled |
1619 | * in the kernel because of a security problem. Merely defining DOSUID |
1620 | * in perl will not fix that problem, but if you have disabled setuid |
1621 | * scripts in the kernel, this will attempt to emulate setuid and setgid |
1622 | * on scripts that have those now-otherwise-useless bits set. The setuid |
27e2fb84 |
1623 | * root version must be called suidperl or sperlN.NNN. If regular perl |
1624 | * discovers that it has opened a setuid script, it calls suidperl with |
1625 | * the same argv that it had. If suidperl finds that the script it has |
1626 | * just opened is NOT setuid root, it sets the effective uid back to the |
1627 | * uid. We don't just make perl setuid root because that loses the |
1628 | * effective uid we had before invoking perl, if it was different from the |
1629 | * uid. |
13281fa4 |
1630 | * |
1631 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must |
1632 | * be defined in suidperl only. suidperl must be setuid root. The |
1633 | * Configure script will set this up for you if you want it. |
1634 | */ |
a687059c |
1635 | |
13281fa4 |
1636 | #ifdef DOSUID |
6e72f9df |
1637 | char *s, *s2; |
a0d0e21e |
1638 | |
760ac839 |
1639 | if (Fstat(PerlIO_fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */ |
463ee0b2 |
1640 | croak("Can't stat script \"%s\"",origfilename); |
96436eeb |
1641 | if (fdscript < 0 && statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 |
1642 | I32 len; |
13281fa4 |
1643 | |
a687059c |
1644 | #ifdef IAMSUID |
fe14fcc3 |
1645 | #ifndef HAS_SETREUID |
a687059c |
1646 | /* On this access check to make sure the directories are readable, |
1647 | * there is actually a small window that the user could use to make |
1648 | * filename point to an accessible directory. So there is a faint |
1649 | * chance that someone could execute a setuid script down in a |
1650 | * non-accessible directory. I don't know what to do about that. |
1651 | * But I don't think it's too important. The manual lies when |
1652 | * it says access() is useful in setuid programs. |
1653 | */ |
463ee0b2 |
1654 | if (access(SvPVX(GvSV(curcop->cop_filegv)),1)) /*double check*/ |
1655 | croak("Permission denied"); |
a687059c |
1656 | #else |
1657 | /* If we can swap euid and uid, then we can determine access rights |
1658 | * with a simple stat of the file, and then compare device and |
1659 | * inode to make sure we did stat() on the same file we opened. |
1660 | * Then we just have to make sure he or she can execute it. |
1661 | */ |
1662 | { |
1663 | struct stat tmpstatbuf; |
1664 | |
85e6fe83 |
1665 | if ( |
1666 | #ifdef HAS_SETREUID |
1667 | setreuid(euid,uid) < 0 |
a0d0e21e |
1668 | #else |
1669 | # if HAS_SETRESUID |
85e6fe83 |
1670 | setresuid(euid,uid,(Uid_t)-1) < 0 |
a0d0e21e |
1671 | # endif |
85e6fe83 |
1672 | #endif |
1673 | || getuid() != euid || geteuid() != uid) |
463ee0b2 |
1674 | croak("Can't swap uid and euid"); /* really paranoid */ |
a0d0e21e |
1675 | if (Stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0) |
463ee0b2 |
1676 | croak("Permission denied"); /* testing full pathname here */ |
a687059c |
1677 | if (tmpstatbuf.st_dev != statbuf.st_dev || |
1678 | tmpstatbuf.st_ino != statbuf.st_ino) { |
760ac839 |
1679 | (void)PerlIO_close(rsfp); |
79072805 |
1680 | if (rsfp = my_popen("/bin/mail root","w")) { /* heh, heh */ |
760ac839 |
1681 | PerlIO_printf(rsfp, |
a687059c |
1682 | "User %d tried to run dev %d ino %d in place of dev %d ino %d!\n\ |
1683 | (Filename of set-id script was %s, uid %d gid %d.)\n\nSincerely,\nperl\n", |
1684 | uid,tmpstatbuf.st_dev, tmpstatbuf.st_ino, |
1685 | statbuf.st_dev, statbuf.st_ino, |
463ee0b2 |
1686 | SvPVX(GvSV(curcop->cop_filegv)), |
20188a90 |
1687 | statbuf.st_uid, statbuf.st_gid); |
79072805 |
1688 | (void)my_pclose(rsfp); |
a687059c |
1689 | } |
463ee0b2 |
1690 | croak("Permission denied\n"); |
a687059c |
1691 | } |
85e6fe83 |
1692 | if ( |
1693 | #ifdef HAS_SETREUID |
1694 | setreuid(uid,euid) < 0 |
a0d0e21e |
1695 | #else |
1696 | # if defined(HAS_SETRESUID) |
85e6fe83 |
1697 | setresuid(uid,euid,(Uid_t)-1) < 0 |
a0d0e21e |
1698 | # endif |
85e6fe83 |
1699 | #endif |
1700 | || getuid() != uid || geteuid() != euid) |
463ee0b2 |
1701 | croak("Can't reswap uid and euid"); |
27e2fb84 |
1702 | if (!cando(S_IXUSR,FALSE,&statbuf)) /* can real uid exec? */ |
463ee0b2 |
1703 | croak("Permission denied\n"); |
a687059c |
1704 | } |
fe14fcc3 |
1705 | #endif /* HAS_SETREUID */ |
a687059c |
1706 | #endif /* IAMSUID */ |
1707 | |
27e2fb84 |
1708 | if (!S_ISREG(statbuf.st_mode)) |
463ee0b2 |
1709 | croak("Permission denied"); |
27e2fb84 |
1710 | if (statbuf.st_mode & S_IWOTH) |
463ee0b2 |
1711 | croak("Setuid/gid script is writable by world"); |
13281fa4 |
1712 | doswitches = FALSE; /* -s is insecure in suid */ |
79072805 |
1713 | curcop->cop_line++; |
760ac839 |
1714 | if (sv_gets(linestr, rsfp, 0) == Nullch || |
1715 | strnNE(SvPV(linestr,na),"#!",2) ) /* required even on Sys V */ |
463ee0b2 |
1716 | croak("No #! line"); |
760ac839 |
1717 | s = SvPV(linestr,na)+2; |
663a0e37 |
1718 | if (*s == ' ') s++; |
45d8adaa |
1719 | while (!isSPACE(*s)) s++; |
760ac839 |
1720 | for (s2 = s; (s2 > SvPV(linestr,na)+2 && |
6e72f9df |
1721 | (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ; |
1722 | if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ |
463ee0b2 |
1723 | croak("Not a perl script"); |
a687059c |
1724 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 |
1725 | /* |
1726 | * #! arg must be what we saw above. They can invoke it by |
1727 | * mentioning suidperl explicitly, but they may not add any strange |
1728 | * arguments beyond what #! says if they do invoke suidperl that way. |
1729 | */ |
1730 | len = strlen(validarg); |
1731 | if (strEQ(validarg," PHOOEY ") || |
45d8adaa |
1732 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
463ee0b2 |
1733 | croak("Args must match #! line"); |
a687059c |
1734 | |
1735 | #ifndef IAMSUID |
1736 | if (euid != uid && (statbuf.st_mode & S_ISUID) && |
1737 | euid == statbuf.st_uid) |
1738 | if (!do_undump) |
463ee0b2 |
1739 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c |
1740 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1741 | #endif /* IAMSUID */ |
13281fa4 |
1742 | |
1743 | if (euid) { /* oops, we're not the setuid root perl */ |
760ac839 |
1744 | (void)PerlIO_close(rsfp); |
13281fa4 |
1745 | #ifndef IAMSUID |
27e2fb84 |
1746 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c |
1747 | execv(buf, origargv); /* try again */ |
13281fa4 |
1748 | #endif |
463ee0b2 |
1749 | croak("Can't do setuid\n"); |
13281fa4 |
1750 | } |
1751 | |
83025b21 |
1752 | if (statbuf.st_mode & S_ISGID && statbuf.st_gid != egid) { |
fe14fcc3 |
1753 | #ifdef HAS_SETEGID |
a687059c |
1754 | (void)setegid(statbuf.st_gid); |
1755 | #else |
fe14fcc3 |
1756 | #ifdef HAS_SETREGID |
85e6fe83 |
1757 | (void)setregid((Gid_t)-1,statbuf.st_gid); |
1758 | #else |
1759 | #ifdef HAS_SETRESGID |
1760 | (void)setresgid((Gid_t)-1,statbuf.st_gid,(Gid_t)-1); |
a687059c |
1761 | #else |
1762 | setgid(statbuf.st_gid); |
1763 | #endif |
1764 | #endif |
85e6fe83 |
1765 | #endif |
83025b21 |
1766 | if (getegid() != statbuf.st_gid) |
463ee0b2 |
1767 | croak("Can't do setegid!\n"); |
83025b21 |
1768 | } |
a687059c |
1769 | if (statbuf.st_mode & S_ISUID) { |
1770 | if (statbuf.st_uid != euid) |
fe14fcc3 |
1771 | #ifdef HAS_SETEUID |
a687059c |
1772 | (void)seteuid(statbuf.st_uid); /* all that for this */ |
1773 | #else |
fe14fcc3 |
1774 | #ifdef HAS_SETREUID |
85e6fe83 |
1775 | (void)setreuid((Uid_t)-1,statbuf.st_uid); |
1776 | #else |
1777 | #ifdef HAS_SETRESUID |
1778 | (void)setresuid((Uid_t)-1,statbuf.st_uid,(Uid_t)-1); |
a687059c |
1779 | #else |
1780 | setuid(statbuf.st_uid); |
1781 | #endif |
1782 | #endif |
85e6fe83 |
1783 | #endif |
83025b21 |
1784 | if (geteuid() != statbuf.st_uid) |
463ee0b2 |
1785 | croak("Can't do seteuid!\n"); |
a687059c |
1786 | } |
83025b21 |
1787 | else if (uid) { /* oops, mustn't run as root */ |
fe14fcc3 |
1788 | #ifdef HAS_SETEUID |
85e6fe83 |
1789 | (void)seteuid((Uid_t)uid); |
a687059c |
1790 | #else |
fe14fcc3 |
1791 | #ifdef HAS_SETREUID |
85e6fe83 |
1792 | (void)setreuid((Uid_t)-1,(Uid_t)uid); |
a687059c |
1793 | #else |
85e6fe83 |
1794 | #ifdef HAS_SETRESUID |
1795 | (void)setresuid((Uid_t)-1,(Uid_t)uid,(Uid_t)-1); |
1796 | #else |
1797 | setuid((Uid_t)uid); |
1798 | #endif |
a687059c |
1799 | #endif |
1800 | #endif |
83025b21 |
1801 | if (geteuid() != uid) |
463ee0b2 |
1802 | croak("Can't do seteuid!\n"); |
83025b21 |
1803 | } |
748a9306 |
1804 | init_ids(); |
27e2fb84 |
1805 | if (!cando(S_IXUSR,TRUE,&statbuf)) |
463ee0b2 |
1806 | croak("Permission denied\n"); /* they can't do this */ |
13281fa4 |
1807 | } |
1808 | #ifdef IAMSUID |
1809 | else if (preprocess) |
463ee0b2 |
1810 | croak("-P not allowed for setuid/setgid script\n"); |
96436eeb |
1811 | else if (fdscript >= 0) |
1812 | croak("fd script not allowed in suidperl\n"); |
13281fa4 |
1813 | else |
463ee0b2 |
1814 | croak("Script is not setuid/setgid in suidperl\n"); |
96436eeb |
1815 | |
1816 | /* We absolutely must clear out any saved ids here, so we */ |
1817 | /* exec the real perl, substituting fd script for scriptname. */ |
1818 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ |
760ac839 |
1819 | PerlIO_rewind(rsfp); |
1820 | lseek(PerlIO_fileno(rsfp),(Off_t)0,0); /* just in case rewind didn't */ |
96436eeb |
1821 | for (which = 1; origargv[which] && origargv[which] != scriptname; which++) ; |
1822 | if (!origargv[which]) |
1823 | croak("Permission denied"); |
760ac839 |
1824 | (void)sprintf(buf, "/dev/fd/%d/%.127s", PerlIO_fileno(rsfp), origargv[which]); |
96436eeb |
1825 | origargv[which] = buf; |
1826 | |
1827 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
760ac839 |
1828 | fcntl(PerlIO_fileno(rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb |
1829 | #endif |
1830 | |
1831 | (void)sprintf(tokenbuf, "%s/perl%s", BIN, patchlevel); |
1832 | execv(tokenbuf, origargv); /* try again */ |
1833 | croak("Can't do setuid\n"); |
13281fa4 |
1834 | #endif /* IAMSUID */ |
a687059c |
1835 | #else /* !DOSUID */ |
a687059c |
1836 | if (euid != uid || egid != gid) { /* (suidperl doesn't exist, in fact) */ |
1837 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW |
760ac839 |
1838 | Fstat(PerlIO_fileno(rsfp),&statbuf); /* may be either wrapped or real suid */ |
a687059c |
1839 | if ((euid != uid && euid == statbuf.st_uid && statbuf.st_mode & S_ISUID) |
1840 | || |
1841 | (egid != gid && egid == statbuf.st_gid && statbuf.st_mode & S_ISGID) |
1842 | ) |
1843 | if (!do_undump) |
463ee0b2 |
1844 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c |
1845 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1846 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ |
1847 | /* not set-id, must be wrapped */ |
a687059c |
1848 | } |
13281fa4 |
1849 | #endif /* DOSUID */ |
79072805 |
1850 | } |
13281fa4 |
1851 | |
79072805 |
1852 | static void |
1853 | find_beginning() |
1854 | { |
6e72f9df |
1855 | register char *s, *s2; |
33b78306 |
1856 | |
1857 | /* skip forward in input to the real script? */ |
1858 | |
463ee0b2 |
1859 | taint_not("-x"); |
33b78306 |
1860 | while (doextract) { |
79072805 |
1861 | if ((s = sv_gets(linestr, rsfp, 0)) == Nullch) |
463ee0b2 |
1862 | croak("No Perl script found in input\n"); |
6e72f9df |
1863 | if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) { |
760ac839 |
1864 | PerlIO_ungetc(rsfp, '\n'); /* to keep line count right */ |
33b78306 |
1865 | doextract = FALSE; |
6e72f9df |
1866 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
1867 | s2 = s; |
1868 | while (*s == ' ' || *s == '\t') s++; |
1869 | if (*s++ == '-') { |
1870 | while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--; |
1871 | if (strnEQ(s2-4,"perl",4)) |
1872 | /*SUPPRESS 530*/ |
1873 | while (s = moreswitches(s)) ; |
33b78306 |
1874 | } |
79072805 |
1875 | if (cddir && chdir(cddir) < 0) |
463ee0b2 |
1876 | croak("Can't chdir to %s",cddir); |
83025b21 |
1877 | } |
1878 | } |
1879 | } |
1880 | |
79072805 |
1881 | static void |
748a9306 |
1882 | init_ids() |
352d5a3a |
1883 | { |
748a9306 |
1884 | uid = (int)getuid(); |
1885 | euid = (int)geteuid(); |
1886 | gid = (int)getgid(); |
1887 | egid = (int)getegid(); |
1888 | #ifdef VMS |
1889 | uid |= gid << 16; |
1890 | euid |= egid << 16; |
1891 | #endif |
4633a7c4 |
1892 | tainting |= (uid && (euid != uid || egid != gid)); |
748a9306 |
1893 | } |
79072805 |
1894 | |
748a9306 |
1895 | static void |
1896 | init_debugger() |
1897 | { |
79072805 |
1898 | curstash = debstash; |
748a9306 |
1899 | dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); |
79072805 |
1900 | AvREAL_off(dbargs); |
a0d0e21e |
1901 | DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); |
1902 | DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); |
748a9306 |
1903 | DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); |
1904 | DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); |
c07a80fd |
1905 | sv_setiv(DBsingle, 0); |
748a9306 |
1906 | DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); |
c07a80fd |
1907 | sv_setiv(DBtrace, 0); |
748a9306 |
1908 | DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); |
c07a80fd |
1909 | sv_setiv(DBsignal, 0); |
79072805 |
1910 | curstash = defstash; |
352d5a3a |
1911 | } |
1912 | |
79072805 |
1913 | static void |
8990e307 |
1914 | init_stacks() |
79072805 |
1915 | { |
6e72f9df |
1916 | curstack = newAV(); |
1917 | mainstack = curstack; /* remember in case we switch stacks */ |
1918 | AvREAL_off(curstack); /* not a real array */ |
1919 | av_extend(curstack,127); |
79072805 |
1920 | |
6e72f9df |
1921 | stack_base = AvARRAY(curstack); |
79072805 |
1922 | stack_sp = stack_base; |
8990e307 |
1923 | stack_max = stack_base + 127; |
79072805 |
1924 | |
6e72f9df |
1925 | /* Shouldn't these stacks be per-interpreter? */ |
1926 | if (markstack) { |
1927 | markstack_ptr = markstack; |
1928 | } else { |
1929 | New(54,markstack,64,I32); |
1930 | markstack_ptr = markstack; |
1931 | markstack_max = markstack + 64; |
1932 | } |
79072805 |
1933 | |
6e72f9df |
1934 | if (scopestack) { |
1935 | scopestack_ix = 0; |
1936 | } else { |
1937 | New(54,scopestack,32,I32); |
1938 | scopestack_ix = 0; |
1939 | scopestack_max = 32; |
1940 | } |
79072805 |
1941 | |
6e72f9df |
1942 | if (savestack) { |
1943 | savestack_ix = 0; |
1944 | } else { |
1945 | New(54,savestack,128,ANY); |
1946 | savestack_ix = 0; |
1947 | savestack_max = 128; |
1948 | } |
79072805 |
1949 | |
6e72f9df |
1950 | if (retstack) { |
1951 | retstack_ix = 0; |
1952 | } else { |
1953 | New(54,retstack,16,OP*); |
1954 | retstack_ix = 0; |
1955 | retstack_max = 16; |
1956 | } |
8d063cd8 |
1957 | |
a5f75d66 |
1958 | cxstack_max = 8192 / sizeof(CONTEXT) - 2; /* Use most of 8K. */ |
1959 | New(50,cxstack,cxstack_max + 1,CONTEXT); |
8990e307 |
1960 | cxstack_ix = -1; |
8990e307 |
1961 | |
1962 | New(50,tmps_stack,128,SV*); |
1963 | tmps_ix = -1; |
1964 | tmps_max = 128; |
1965 | |
79072805 |
1966 | DEBUG( { |
1967 | New(51,debname,128,char); |
1968 | New(52,debdelim,128,char); |
1969 | } ) |
378cc40b |
1970 | } |
33b78306 |
1971 | |
6e72f9df |
1972 | static void |
1973 | nuke_stacks() |
1974 | { |
1975 | Safefree(cxstack); |
1976 | Safefree(tmps_stack); |
1977 | } |
1978 | |
760ac839 |
1979 | static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
79072805 |
1980 | static void |
8990e307 |
1981 | init_lexer() |
1982 | { |
a0d0e21e |
1983 | tmpfp = rsfp; |
8990e307 |
1984 | |
1985 | lex_start(linestr); |
1986 | rsfp = tmpfp; |
1987 | subname = newSVpv("main",4); |
1988 | } |
1989 | |
1990 | static void |
79072805 |
1991 | init_predump_symbols() |
45d8adaa |
1992 | { |
93a17b20 |
1993 | GV *tmpgv; |
a0d0e21e |
1994 | GV *othergv; |
79072805 |
1995 | |
85e6fe83 |
1996 | sv_setpvn(GvSV(gv_fetchpv("\"", TRUE, SVt_PV)), " ", 1); |
79072805 |
1997 | |
85e6fe83 |
1998 | stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
a5f75d66 |
1999 | GvMULTI_on(stdingv); |
760ac839 |
2000 | IoIFP(GvIOp(stdingv)) = PerlIO_stdin(); |
adbc6bb1 |
2001 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 |
2002 | GvMULTI_on(tmpgv); |
a0d0e21e |
2003 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(stdingv)); |
79072805 |
2004 | |
85e6fe83 |
2005 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 |
2006 | GvMULTI_on(tmpgv); |
760ac839 |
2007 | IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout(); |
4633a7c4 |
2008 | setdefout(tmpgv); |
adbc6bb1 |
2009 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 |
2010 | GvMULTI_on(tmpgv); |
a0d0e21e |
2011 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(defoutgv)); |
79072805 |
2012 | |
a0d0e21e |
2013 | othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
a5f75d66 |
2014 | GvMULTI_on(othergv); |
760ac839 |
2015 | IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr(); |
adbc6bb1 |
2016 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 |
2017 | GvMULTI_on(tmpgv); |
a0d0e21e |
2018 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv)); |
79072805 |
2019 | |
2020 | statname = NEWSV(66,0); /* last filename we did stat on */ |
ab821d7f |
2021 | |
6e72f9df |
2022 | if (!osname) |
2023 | osname = savepv(OSNAME); |
79072805 |
2024 | } |
33b78306 |
2025 | |
79072805 |
2026 | static void |
2027 | init_postdump_symbols(argc,argv,env) |
2028 | register int argc; |
2029 | register char **argv; |
2030 | register char **env; |
33b78306 |
2031 | { |
79072805 |
2032 | char *s; |
2033 | SV *sv; |
2034 | GV* tmpgv; |
fe14fcc3 |
2035 | |
79072805 |
2036 | argc--,argv++; /* skip name of script */ |
2037 | if (doswitches) { |
2038 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
2039 | if (!argv[0][1]) |
2040 | break; |
2041 | if (argv[0][1] == '-') { |
2042 | argc--,argv++; |
2043 | break; |
2044 | } |
93a17b20 |
2045 | if (s = strchr(argv[0], '=')) { |
79072805 |
2046 | *s++ = '\0'; |
85e6fe83 |
2047 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 |
2048 | } |
2049 | else |
85e6fe83 |
2050 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 |
2051 | } |
79072805 |
2052 | } |
2053 | toptarget = NEWSV(0,0); |
2054 | sv_upgrade(toptarget, SVt_PVFM); |
2055 | sv_setpvn(toptarget, "", 0); |
748a9306 |
2056 | bodytarget = NEWSV(0,0); |
79072805 |
2057 | sv_upgrade(bodytarget, SVt_PVFM); |
2058 | sv_setpvn(bodytarget, "", 0); |
2059 | formtarget = bodytarget; |
2060 | |
79072805 |
2061 | tainted = 1; |
85e6fe83 |
2062 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
79072805 |
2063 | sv_setpv(GvSV(tmpgv),origfilename); |
2064 | magicname("0", "0", 1); |
2065 | } |
85e6fe83 |
2066 | if (tmpgv = gv_fetchpv("\024",TRUE, SVt_PV)) |
79072805 |
2067 | time(&basetime); |
85e6fe83 |
2068 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
79072805 |
2069 | sv_setpv(GvSV(tmpgv),origargv[0]); |
85e6fe83 |
2070 | if (argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { |
a5f75d66 |
2071 | GvMULTI_on(argvgv); |
79072805 |
2072 | (void)gv_AVadd(argvgv); |
2073 | av_clear(GvAVn(argvgv)); |
2074 | for (; argc > 0; argc--,argv++) { |
a0d0e21e |
2075 | av_push(GvAVn(argvgv),newSVpv(argv[0],0)); |
79072805 |
2076 | } |
2077 | } |
85e6fe83 |
2078 | if (envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 |
2079 | HV *hv; |
a5f75d66 |
2080 | GvMULTI_on(envgv); |
79072805 |
2081 | hv = GvHVn(envgv); |
463ee0b2 |
2082 | hv_clear(hv); |
a0d0e21e |
2083 | #ifndef VMS /* VMS doesn't have environ array */ |
4633a7c4 |
2084 | /* Note that if the supplied env parameter is actually a copy |
2085 | of the global environ then it may now point to free'd memory |
2086 | if the environment has been modified since. To avoid this |
2087 | problem we treat env==NULL as meaning 'use the default' |
2088 | */ |
2089 | if (!env) |
2090 | env = environ; |
8990e307 |
2091 | if (env != environ) { |
79072805 |
2092 | environ[0] = Nullch; |
8990e307 |
2093 | hv_magic(hv, envgv, 'E'); |
2094 | } |
79072805 |
2095 | for (; *env; env++) { |
93a17b20 |
2096 | if (!(s = strchr(*env,'='))) |
79072805 |
2097 | continue; |
2098 | *s++ = '\0'; |
2099 | sv = newSVpv(s--,0); |
85e6fe83 |
2100 | sv_magic(sv, sv, 'e', *env, s - *env); |
79072805 |
2101 | (void)hv_store(hv, *env, s - *env, sv, 0); |
2102 | *s = '='; |
fe14fcc3 |
2103 | } |
4550b24a |
2104 | #endif |
2105 | #ifdef DYNAMIC_ENV_FETCH |
2106 | HvNAME(hv) = savepv(ENV_HV_NAME); |
2107 | #endif |
f511e57f |
2108 | hv_magic(hv, envgv, 'E'); |
79072805 |
2109 | } |
79072805 |
2110 | tainted = 0; |
85e6fe83 |
2111 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
79072805 |
2112 | sv_setiv(GvSV(tmpgv),(I32)getpid()); |
2113 | |
33b78306 |
2114 | } |
34de22dd |
2115 | |
79072805 |
2116 | static void |
2117 | init_perllib() |
34de22dd |
2118 | { |
85e6fe83 |
2119 | char *s; |
2120 | if (!tainting) { |
552a7a9b |
2121 | #ifndef VMS |
85e6fe83 |
2122 | s = getenv("PERL5LIB"); |
2123 | if (s) |
2124 | incpush(s); |
2125 | else |
2126 | incpush(getenv("PERLLIB")); |
552a7a9b |
2127 | #else /* VMS */ |
2128 | /* Treat PERL5?LIB as a possible search list logical name -- the |
2129 | * "natural" VMS idiom for a Unix path string. We allow each |
2130 | * element to be a set of |-separated directories for compatibility. |
2131 | */ |
2132 | char buf[256]; |
2133 | int idx = 0; |
2134 | if (my_trnlnm("PERL5LIB",buf,0)) |
2135 | do { incpush(buf); } while (my_trnlnm("PERL5LIB",buf,++idx)); |
2136 | else |
2137 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf); |
2138 | #endif /* VMS */ |
85e6fe83 |
2139 | } |
34de22dd |
2140 | |
df5cef82 |
2141 | /* Use the ~-expanded versions of APPLIB (undocumented), |
2142 | ARCHLIB PRIVLIB SITEARCH SITELIB and OLDARCHLIB |
2143 | */ |
4633a7c4 |
2144 | #ifdef APPLLIB_EXP |
2145 | incpush(APPLLIB_EXP); |
16d20bd9 |
2146 | #endif |
4633a7c4 |
2147 | |
fed7345c |
2148 | #ifdef ARCHLIB_EXP |
2149 | incpush(ARCHLIB_EXP); |
a0d0e21e |
2150 | #endif |
fed7345c |
2151 | #ifndef PRIVLIB_EXP |
2152 | #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" |
34de22dd |
2153 | #endif |
fed7345c |
2154 | incpush(PRIVLIB_EXP); |
4633a7c4 |
2155 | |
2156 | #ifdef SITEARCH_EXP |
2157 | incpush(SITEARCH_EXP); |
2158 | #endif |
2159 | #ifdef SITELIB_EXP |
2160 | incpush(SITELIB_EXP); |
2161 | #endif |
2162 | #ifdef OLDARCHLIB_EXP /* 5.00[01] compatibility */ |
2163 | incpush(OLDARCHLIB_EXP); |
2164 | #endif |
a0d0e21e |
2165 | |
4633a7c4 |
2166 | if (!tainting) |
2167 | incpush("."); |
34de22dd |
2168 | } |
93a17b20 |
2169 | |
2170 | void |
2171 | calllist(list) |
2172 | AV* list; |
2173 | { |
a5f75d66 |
2174 | Sigjmp_buf oldtop; |
a0d0e21e |
2175 | STRLEN len; |
2176 | line_t oldline = curcop->cop_line; |
93a17b20 |
2177 | |
a5f75d66 |
2178 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
93a17b20 |
2179 | |
8990e307 |
2180 | while (AvFILL(list) >= 0) { |
2181 | CV *cv = (CV*)av_shift(list); |
93a17b20 |
2182 | |
8990e307 |
2183 | SAVEFREESV(cv); |
a0d0e21e |
2184 | |
a5f75d66 |
2185 | switch (Sigsetjmp(top_env,1)) { |
748a9306 |
2186 | case 0: { |
4633a7c4 |
2187 | SV* atsv = GvSV(errgv); |
748a9306 |
2188 | PUSHMARK(stack_sp); |
2189 | perl_call_sv((SV*)cv, G_EVAL|G_DISCARD); |
2190 | (void)SvPV(atsv, len); |
2191 | if (len) { |
a5f75d66 |
2192 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
748a9306 |
2193 | curcop = &compiling; |
2194 | curcop->cop_line = oldline; |
2195 | if (list == beginav) |
2196 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); |
2197 | else |
2198 | sv_catpv(atsv, "END failed--cleanup aborted"); |
2199 | croak("%s", SvPVX(atsv)); |
2200 | } |
a0d0e21e |
2201 | } |
85e6fe83 |
2202 | break; |
2203 | case 1: |
748a9306 |
2204 | #ifdef VMS |
85e6fe83 |
2205 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 |
2206 | #else |
2207 | statusvalue = 1; |
2208 | #endif |
85e6fe83 |
2209 | /* FALL THROUGH */ |
2210 | case 2: |
2211 | /* my_exit() was called */ |
2212 | curstash = defstash; |
2213 | if (endav) |
2214 | calllist(endav); |
a0d0e21e |
2215 | FREETMPS; |
a5f75d66 |
2216 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e |
2217 | curcop = &compiling; |
2218 | curcop->cop_line = oldline; |
85e6fe83 |
2219 | if (statusvalue) { |
2220 | if (list == beginav) |
a0d0e21e |
2221 | croak("BEGIN failed--compilation aborted"); |
85e6fe83 |
2222 | else |
a0d0e21e |
2223 | croak("END failed--cleanup aborted"); |
85e6fe83 |
2224 | } |
85e6fe83 |
2225 | my_exit(statusvalue); |
2226 | /* NOTREACHED */ |
2227 | return; |
2228 | case 3: |
2229 | if (!restartop) { |
760ac839 |
2230 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e |
2231 | FREETMPS; |
85e6fe83 |
2232 | break; |
2233 | } |
a5f75d66 |
2234 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e |
2235 | curcop = &compiling; |
2236 | curcop->cop_line = oldline; |
a5f75d66 |
2237 | Siglongjmp(top_env, 3); |
8990e307 |
2238 | } |
93a17b20 |
2239 | } |
2240 | |
a5f75d66 |
2241 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
93a17b20 |
2242 | } |
2243 | |