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 | |
a0d0e21e |
18 | /* Omit -- it causes too much grief on mixed systems. |
19 | #ifdef I_UNISTD |
20 | #include <unistd.h> |
21 | #endif |
22 | */ |
23 | |
4633a7c4 |
24 | dEXT 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 | |
760ac839 |
38 | #ifndef OSNAME |
39 | #define OSNAME "unknown" |
40 | #endif |
41 | |
a0d0e21e |
42 | static void find_beginning _((void)); |
43 | static void incpush _((char *)); |
748a9306 |
44 | static void init_ids _((void)); |
a0d0e21e |
45 | static void init_debugger _((void)); |
46 | static void init_lexer _((void)); |
47 | static void init_main_stash _((void)); |
48 | static void init_perllib _((void)); |
49 | static void init_postdump_symbols _((int, char **, char **)); |
50 | static void init_predump_symbols _((void)); |
51 | static void init_stacks _((void)); |
6e72f9df |
52 | static void nuke_stacks _((void)); |
a0d0e21e |
53 | static void open_script _((char *, bool, SV *)); |
ab821d7f |
54 | static void usage _((char *)); |
96436eeb |
55 | static void validate_suid _((char *, char*)); |
56 | |
57 | static int fdscript = -1; |
79072805 |
58 | |
93a17b20 |
59 | PerlInterpreter * |
79072805 |
60 | perl_alloc() |
61 | { |
93a17b20 |
62 | PerlInterpreter *sv_interp; |
79072805 |
63 | |
8990e307 |
64 | curinterp = 0; |
93a17b20 |
65 | New(53, sv_interp, 1, PerlInterpreter); |
79072805 |
66 | return sv_interp; |
67 | } |
68 | |
69 | void |
70 | perl_construct( sv_interp ) |
93a17b20 |
71 | register PerlInterpreter *sv_interp; |
79072805 |
72 | { |
73 | if (!(curinterp = sv_interp)) |
74 | return; |
75 | |
8990e307 |
76 | #ifdef MULTIPLICITY |
93a17b20 |
77 | Zero(sv_interp, 1, PerlInterpreter); |
8990e307 |
78 | #endif |
79072805 |
79 | |
80 | /* Init the real globals? */ |
81 | if (!linestr) { |
82 | linestr = NEWSV(65,80); |
ed6116ce |
83 | sv_upgrade(linestr,SVt_PVIV); |
79072805 |
84 | |
6e72f9df |
85 | if (!SvREADONLY(&sv_undef)) { |
86 | SvREADONLY_on(&sv_undef); |
79072805 |
87 | |
6e72f9df |
88 | sv_setpv(&sv_no,No); |
89 | SvNV(&sv_no); |
90 | SvREADONLY_on(&sv_no); |
79072805 |
91 | |
6e72f9df |
92 | sv_setpv(&sv_yes,Yes); |
93 | SvNV(&sv_yes); |
94 | SvREADONLY_on(&sv_yes); |
95 | } |
79072805 |
96 | |
c07a80fd |
97 | nrs = newSVpv("\n", 1); |
98 | rs = SvREFCNT_inc(nrs); |
99 | |
79072805 |
100 | #ifdef MSDOS |
101 | /* |
102 | * There is no way we can refer to them from Perl so close them to save |
103 | * space. The other alternative would be to provide STDAUX and STDPRN |
104 | * filehandles. |
105 | */ |
106 | (void)fclose(stdaux); |
107 | (void)fclose(stdprn); |
108 | #endif |
109 | } |
110 | |
8990e307 |
111 | #ifdef MULTIPLICITY |
79072805 |
112 | chopset = " \n-"; |
463ee0b2 |
113 | copline = NOLINE; |
79072805 |
114 | curcop = &compiling; |
1a30305b |
115 | dbargs = 0; |
79072805 |
116 | dlmax = 128; |
117 | laststatval = -1; |
118 | laststype = OP_STAT; |
119 | maxscream = -1; |
120 | maxsysfd = MAXSYSFD; |
79072805 |
121 | rsfp = Nullfp; |
463ee0b2 |
122 | statname = Nullsv; |
79072805 |
123 | tmps_floor = -1; |
79072805 |
124 | #endif |
125 | |
748a9306 |
126 | init_ids(); |
a5f75d66 |
127 | |
128 | #if defined(SUBVERSION) && SUBVERSION > 0 |
129 | sprintf(patchlevel, "%7.5f", 5.0 + (PATCHLEVEL / 1000.0) |
130 | + (SUBVERSION / 100000.0)); |
131 | #else |
a0d0e21e |
132 | sprintf(patchlevel, "%5.3f", 5.0 + (PATCHLEVEL / 1000.0)); |
a5f75d66 |
133 | #endif |
79072805 |
134 | |
ab821d7f |
135 | #if defined(LOCAL_PATCH_COUNT) |
6e72f9df |
136 | localpatches = local_patches; /* For possible -v */ |
ab821d7f |
137 | #endif |
138 | |
760ac839 |
139 | PerlIO_init(); /* Hook to IO system */ |
140 | |
79072805 |
141 | fdpid = newAV(); /* for remembering popen pids by fd */ |
463ee0b2 |
142 | pidstatus = newHV();/* for remembering status of dead pids */ |
8990e307 |
143 | |
144 | init_stacks(); |
145 | ENTER; |
79072805 |
146 | } |
147 | |
148 | void |
748a9306 |
149 | perl_destruct(sv_interp) |
93a17b20 |
150 | register PerlInterpreter *sv_interp; |
79072805 |
151 | { |
748a9306 |
152 | int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
8990e307 |
153 | I32 last_sv_count; |
a0d0e21e |
154 | HV *hv; |
8990e307 |
155 | |
79072805 |
156 | if (!(curinterp = sv_interp)) |
157 | return; |
748a9306 |
158 | |
159 | destruct_level = perl_destruct_level; |
4633a7c4 |
160 | #ifdef DEBUGGING |
161 | { |
162 | char *s; |
163 | if (s = getenv("PERL_DESTRUCT_LEVEL")) |
164 | destruct_level = atoi(s); |
165 | } |
166 | #endif |
167 | |
8990e307 |
168 | LEAVE; |
a0d0e21e |
169 | FREETMPS; |
170 | |
6e72f9df |
171 | /* We must account for everything. First the syntax tree. */ |
172 | if (main_root) { |
173 | curpad = AvARRAY(comppad); |
174 | op_free(main_root); |
175 | main_root = 0; |
a0d0e21e |
176 | } |
177 | if (sv_objcount) { |
178 | /* |
179 | * Try to destruct global references. We do this first so that the |
180 | * destructors and destructees still exist. Some sv's might remain. |
181 | * Non-referenced objects are on their own. |
182 | */ |
183 | |
184 | dirty = TRUE; |
185 | sv_clean_objs(); |
8990e307 |
186 | } |
187 | |
a0d0e21e |
188 | if (destruct_level == 0){ |
8990e307 |
189 | |
a0d0e21e |
190 | DEBUG_P(debprofdump()); |
191 | |
192 | /* The exit() function will do everything that needs doing. */ |
193 | return; |
194 | } |
195 | |
196 | /* Prepare to destruct main symbol table. */ |
197 | hv = defstash; |
85e6fe83 |
198 | defstash = 0; |
a0d0e21e |
199 | SvREFCNT_dec(hv); |
200 | |
201 | FREETMPS; |
202 | if (destruct_level >= 2) { |
203 | if (scopestack_ix != 0) |
204 | warn("Unbalanced scopes: %d more ENTERs than LEAVEs\n", scopestack_ix); |
205 | if (savestack_ix != 0) |
206 | warn("Unbalanced saves: %d more saves than restores\n", savestack_ix); |
207 | if (tmps_floor != -1) |
208 | warn("Unbalanced tmps: %d more allocs than frees\n", tmps_floor + 1); |
209 | if (cxstack_ix != -1) |
210 | warn("Unbalanced context: %d more PUSHes than POPs\n", cxstack_ix + 1); |
211 | } |
8990e307 |
212 | |
213 | /* Now absolutely destruct everything, somehow or other, loops or no. */ |
8990e307 |
214 | last_sv_count = 0; |
6e72f9df |
215 | SvFLAGS(strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
8990e307 |
216 | while (sv_count != 0 && sv_count != last_sv_count) { |
217 | last_sv_count = sv_count; |
218 | sv_clean_all(); |
219 | } |
6e72f9df |
220 | SvFLAGS(strtab) &= ~SVTYPEMASK; |
221 | SvFLAGS(strtab) |= SVt_PVHV; |
222 | |
223 | /* Destruct the global string table. */ |
224 | { |
225 | /* Yell and reset the HeVAL() slots that are still holding refcounts, |
226 | * so that sv_free() won't fail on them. |
227 | */ |
228 | I32 riter; |
229 | I32 max; |
230 | HE *hent; |
231 | HE **array; |
232 | |
233 | riter = 0; |
234 | max = HvMAX(strtab); |
235 | array = HvARRAY(strtab); |
236 | hent = array[0]; |
237 | for (;;) { |
238 | if (hent) { |
239 | warn("Unbalanced string table refcount: (%d) for \"%s\"", |
240 | HeVAL(hent) - Nullsv, HeKEY(hent)); |
241 | HeVAL(hent) = Nullsv; |
242 | hent = HeNEXT(hent); |
243 | } |
244 | if (!hent) { |
245 | if (++riter > max) |
246 | break; |
247 | hent = array[riter]; |
248 | } |
249 | } |
250 | } |
251 | SvREFCNT_dec(strtab); |
252 | |
8990e307 |
253 | if (sv_count != 0) |
254 | warn("Scalars leaked: %d\n", sv_count); |
6e72f9df |
255 | |
4633a7c4 |
256 | sv_free_arenas(); |
a0d0e21e |
257 | |
6e72f9df |
258 | linestr = NULL; /* No SVs have survived, need to clean out */ |
259 | if (origfilename) |
260 | Safefree(origfilename); |
261 | nuke_stacks(); |
262 | hints = 0; /* Reset hints. Should hints be per-interpreter ? */ |
263 | |
a0d0e21e |
264 | DEBUG_P(debprofdump()); |
79072805 |
265 | } |
266 | |
267 | void |
268 | perl_free(sv_interp) |
93a17b20 |
269 | PerlInterpreter *sv_interp; |
79072805 |
270 | { |
271 | if (!(curinterp = sv_interp)) |
272 | return; |
273 | Safefree(sv_interp); |
274 | } |
ecfc5424 |
275 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) |
a0d0e21e |
276 | char *getenv _((char *)); /* Usually in <stdlib.h> */ |
277 | #endif |
79072805 |
278 | |
279 | int |
a0d0e21e |
280 | perl_parse(sv_interp, xsinit, argc, argv, env) |
93a17b20 |
281 | PerlInterpreter *sv_interp; |
a0d0e21e |
282 | void (*xsinit)_((void)); |
283 | int argc; |
284 | char **argv; |
79072805 |
285 | char **env; |
8d063cd8 |
286 | { |
79072805 |
287 | register SV *sv; |
8d063cd8 |
288 | register char *s; |
1a30305b |
289 | char *scriptname = NULL; |
a0d0e21e |
290 | VOL bool dosearch = FALSE; |
13281fa4 |
291 | char *validarg = ""; |
748a9306 |
292 | AV* comppadlist; |
8d063cd8 |
293 | |
a687059c |
294 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
295 | #ifdef IAMSUID |
296 | #undef IAMSUID |
463ee0b2 |
297 | croak("suidperl is no longer needed since the kernel can now execute\n\ |
a687059c |
298 | setuid perl scripts securely.\n"); |
299 | #endif |
300 | #endif |
301 | |
79072805 |
302 | if (!(curinterp = sv_interp)) |
303 | return 255; |
304 | |
6e72f9df |
305 | #if defined(NeXT) && defined(__DYNAMIC__) |
306 | _dyld_lookup_and_bind |
307 | ("__environ", (unsigned long *) &environ_pointer, NULL); |
308 | #endif /* environ */ |
309 | |
ac58e20f |
310 | origargv = argv; |
311 | origargc = argc; |
a0d0e21e |
312 | #ifndef VMS /* VMS doesn't have environ array */ |
fe14fcc3 |
313 | origenviron = environ; |
a0d0e21e |
314 | #endif |
ab821d7f |
315 | e_tmpname = Nullch; |
a0d0e21e |
316 | |
317 | if (do_undump) { |
318 | |
319 | /* Come here if running an undumped a.out. */ |
320 | |
321 | origfilename = savepv(argv[0]); |
322 | do_undump = FALSE; |
323 | cxstack_ix = -1; /* start label stack again */ |
748a9306 |
324 | init_ids(); |
a0d0e21e |
325 | init_postdump_symbols(argc,argv,env); |
326 | return 0; |
327 | } |
328 | |
329 | if (main_root) |
330 | op_free(main_root); |
331 | main_root = 0; |
79072805 |
332 | |
a5f75d66 |
333 | switch (Sigsetjmp(top_env,1)) { |
79072805 |
334 | case 1: |
748a9306 |
335 | #ifdef VMS |
79072805 |
336 | statusvalue = 255; |
748a9306 |
337 | #else |
338 | statusvalue = 1; |
339 | #endif |
79072805 |
340 | case 2: |
8990e307 |
341 | curstash = defstash; |
342 | if (endav) |
343 | calllist(endav); |
79072805 |
344 | return(statusvalue); /* my_exit() was called */ |
345 | case 3: |
760ac839 |
346 | PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); |
8990e307 |
347 | return 1; |
79072805 |
348 | } |
349 | |
79072805 |
350 | sv_setpvn(linestr,"",0); |
351 | sv = newSVpv("",0); /* first used for -I flags */ |
8990e307 |
352 | SAVEFREESV(sv); |
79072805 |
353 | init_main_stash(); |
33b78306 |
354 | for (argc--,argv++; argc > 0; argc--,argv++) { |
8d063cd8 |
355 | if (argv[0][0] != '-' || !argv[0][1]) |
356 | break; |
13281fa4 |
357 | #ifdef DOSUID |
358 | if (*validarg) |
359 | validarg = " PHOOEY "; |
360 | else |
361 | validarg = argv[0]; |
362 | #endif |
363 | s = argv[0]+1; |
8d063cd8 |
364 | reswitch: |
13281fa4 |
365 | switch (*s) { |
27e2fb84 |
366 | case '0': |
2304df62 |
367 | case 'F': |
378cc40b |
368 | case 'a': |
33b78306 |
369 | case 'c': |
a687059c |
370 | case 'd': |
8d063cd8 |
371 | case 'D': |
4633a7c4 |
372 | case 'h': |
33b78306 |
373 | case 'i': |
fe14fcc3 |
374 | case 'l': |
1a30305b |
375 | case 'M': |
376 | case 'm': |
33b78306 |
377 | case 'n': |
378 | case 'p': |
79072805 |
379 | case 's': |
463ee0b2 |
380 | case 'T': |
33b78306 |
381 | case 'u': |
382 | case 'U': |
383 | case 'v': |
384 | case 'w': |
385 | if (s = moreswitches(s)) |
386 | goto reswitch; |
8d063cd8 |
387 | break; |
33b78306 |
388 | |
8d063cd8 |
389 | case 'e': |
a687059c |
390 | if (euid != uid || egid != gid) |
463ee0b2 |
391 | croak("No -e allowed in setuid scripts"); |
8d063cd8 |
392 | if (!e_fp) { |
a0d0e21e |
393 | e_tmpname = savepv(TMPPATH); |
a687059c |
394 | (void)mktemp(e_tmpname); |
83025b21 |
395 | if (!*e_tmpname) |
463ee0b2 |
396 | croak("Can't mktemp()"); |
760ac839 |
397 | e_fp = PerlIO_open(e_tmpname,"w"); |
33b78306 |
398 | if (!e_fp) |
463ee0b2 |
399 | croak("Cannot open temporary file"); |
8d063cd8 |
400 | } |
33b78306 |
401 | if (argv[1]) { |
760ac839 |
402 | PerlIO_puts(e_fp,argv[1]); |
33b78306 |
403 | argc--,argv++; |
404 | } |
760ac839 |
405 | (void)PerlIO_putc(e_fp,'\n'); |
8d063cd8 |
406 | break; |
407 | case 'I': |
463ee0b2 |
408 | taint_not("-I"); |
79072805 |
409 | sv_catpv(sv,"-"); |
410 | sv_catpv(sv,s); |
411 | sv_catpv(sv," "); |
a687059c |
412 | if (*++s) { |
a0d0e21e |
413 | av_push(GvAVn(incgv),newSVpv(s,0)); |
378cc40b |
414 | } |
33b78306 |
415 | else if (argv[1]) { |
a0d0e21e |
416 | av_push(GvAVn(incgv),newSVpv(argv[1],0)); |
79072805 |
417 | sv_catpv(sv,argv[1]); |
8d063cd8 |
418 | argc--,argv++; |
79072805 |
419 | sv_catpv(sv," "); |
8d063cd8 |
420 | } |
421 | break; |
8d063cd8 |
422 | case 'P': |
463ee0b2 |
423 | taint_not("-P"); |
8d063cd8 |
424 | preprocess = TRUE; |
13281fa4 |
425 | s++; |
8d063cd8 |
426 | goto reswitch; |
378cc40b |
427 | case 'S': |
463ee0b2 |
428 | taint_not("-S"); |
378cc40b |
429 | dosearch = TRUE; |
13281fa4 |
430 | s++; |
378cc40b |
431 | goto reswitch; |
1a30305b |
432 | case 'V': |
433 | if (!preambleav) |
434 | preambleav = newAV(); |
435 | av_push(preambleav, newSVpv("use Config qw(myconfig config_vars)",0)); |
436 | if (*++s != ':') { |
6e72f9df |
437 | Sv = newSVpv("print myconfig();",0); |
438 | #ifdef VMS |
439 | sv_catpv(Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\","); |
440 | #else |
441 | sv_catpv(Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\","); |
442 | #endif |
443 | #if defined(DEBUGGING) || defined(NOEMBED) || defined(MULTIPLICITY) |
444 | strcpy(buf,"\" Compile-time options:"); |
445 | # ifdef DEBUGGING |
446 | strcat(buf," DEBUGGING"); |
447 | # endif |
448 | # ifdef NOEMBED |
449 | strcat(buf," NOEMBED"); |
450 | # endif |
451 | # ifdef MULTIPLICITY |
452 | strcat(buf," MULTIPLICITY"); |
453 | # endif |
454 | strcat(buf,"\\n\","); |
455 | sv_catpv(Sv,buf); |
456 | #endif |
457 | #if defined(LOCAL_PATCH_COUNT) |
458 | if (LOCAL_PATCH_COUNT > 0) |
459 | { int i; |
460 | sv_catpv(Sv,"print \" Locally applied patches:\\n\","); |
461 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { |
462 | if (localpatches[i]) { |
463 | sprintf(buf,"\" \\t%s\\n\",",localpatches[i]); |
464 | sv_catpv(Sv,buf); |
465 | } |
466 | } |
467 | } |
468 | #endif |
469 | sprintf(buf,"\" Built under %s\\n\",",OSNAME); |
470 | sv_catpv(Sv,buf); |
471 | #ifdef __DATE__ |
472 | # ifdef __TIME__ |
473 | sprintf(buf,"\" Compiled at %s %s\\n\"",__DATE__,__TIME__); |
474 | # else |
475 | sprintf(buf,"\" Compiled on %s\\n\"",__DATE__); |
476 | # endif |
477 | sv_catpv(Sv,buf); |
478 | #endif |
479 | sv_catpv(Sv,"; $\"=\"\\n \"; print \" \\@INC:\\n @INC\\n\""); |
1a30305b |
480 | } |
481 | else { |
482 | Sv = newSVpv("config_vars(qw(",0); |
483 | sv_catpv(Sv, ++s); |
484 | sv_catpv(Sv, "))"); |
485 | s += strlen(s); |
486 | } |
487 | av_push(preambleav, Sv); |
c07a80fd |
488 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
1a30305b |
489 | goto reswitch; |
33b78306 |
490 | case 'x': |
491 | doextract = TRUE; |
13281fa4 |
492 | s++; |
33b78306 |
493 | if (*s) |
a0d0e21e |
494 | cddir = savepv(s); |
33b78306 |
495 | break; |
8d063cd8 |
496 | case '-': |
497 | argc--,argv++; |
498 | goto switch_end; |
499 | case 0: |
500 | break; |
501 | default: |
463ee0b2 |
502 | croak("Unrecognized switch: -%s",s); |
8d063cd8 |
503 | } |
504 | } |
505 | switch_end: |
1a30305b |
506 | if (!scriptname) |
507 | scriptname = argv[0]; |
8d063cd8 |
508 | if (e_fp) { |
760ac839 |
509 | if (PerlIO_flush(e_fp) || PerlIO_error(e_fp) || PerlIO_close(e_fp)) |
2304df62 |
510 | croak("Can't write to temp file for -e: %s", Strerror(errno)); |
ab821d7f |
511 | e_fp = Nullfp; |
8d063cd8 |
512 | argc++,argv--; |
45d8adaa |
513 | scriptname = e_tmpname; |
8d063cd8 |
514 | } |
79072805 |
515 | else if (scriptname == Nullch) { |
516 | #ifdef MSDOS |
760ac839 |
517 | if ( isatty(PerlIO_fileno(PerlIO_stdin())) ) |
79072805 |
518 | moreswitches("v"); |
fe14fcc3 |
519 | #endif |
79072805 |
520 | scriptname = "-"; |
521 | } |
fe14fcc3 |
522 | |
79072805 |
523 | init_perllib(); |
8d063cd8 |
524 | |
79072805 |
525 | open_script(scriptname,dosearch,sv); |
8d063cd8 |
526 | |
96436eeb |
527 | validate_suid(validarg, scriptname); |
378cc40b |
528 | |
79072805 |
529 | if (doextract) |
530 | find_beginning(); |
531 | |
748a9306 |
532 | compcv = (CV*)NEWSV(1104,0); |
533 | sv_upgrade((SV *)compcv, SVt_PVCV); |
534 | |
6e72f9df |
535 | comppad = newAV(); |
79072805 |
536 | av_push(comppad, Nullsv); |
537 | curpad = AvARRAY(comppad); |
6e72f9df |
538 | comppad_name = newAV(); |
8990e307 |
539 | comppad_name_fill = 0; |
540 | min_intro_pending = 0; |
79072805 |
541 | padix = 0; |
542 | |
748a9306 |
543 | comppadlist = newAV(); |
544 | AvREAL_off(comppadlist); |
8e07c86e |
545 | av_store(comppadlist, 0, (SV*)comppad_name); |
546 | av_store(comppadlist, 1, (SV*)comppad); |
748a9306 |
547 | CvPADLIST(compcv) = comppadlist; |
548 | |
6e72f9df |
549 | boot_core_UNIVERSAL(); |
a0d0e21e |
550 | if (xsinit) |
551 | (*xsinit)(); /* in case linked C routines want magical variables */ |
748a9306 |
552 | #ifdef VMS |
553 | init_os_extras(); |
554 | #endif |
93a17b20 |
555 | |
93a17b20 |
556 | init_predump_symbols(); |
8990e307 |
557 | if (!do_undump) |
558 | init_postdump_symbols(argc,argv,env); |
93a17b20 |
559 | |
79072805 |
560 | init_lexer(); |
561 | |
562 | /* now parse the script */ |
563 | |
564 | error_count = 0; |
565 | if (yyparse() || error_count) { |
566 | if (minus_c) |
463ee0b2 |
567 | croak("%s had compilation errors.\n", origfilename); |
79072805 |
568 | else { |
463ee0b2 |
569 | croak("Execution of %s aborted due to compilation errors.\n", |
79072805 |
570 | origfilename); |
378cc40b |
571 | } |
79072805 |
572 | } |
573 | curcop->cop_line = 0; |
574 | curstash = defstash; |
575 | preprocess = FALSE; |
ab821d7f |
576 | if (e_tmpname) { |
79072805 |
577 | (void)UNLINK(e_tmpname); |
ab821d7f |
578 | Safefree(e_tmpname); |
579 | e_tmpname = Nullch; |
378cc40b |
580 | } |
a687059c |
581 | |
93a17b20 |
582 | /* now that script is parsed, we can modify record separator */ |
c07a80fd |
583 | SvREFCNT_dec(rs); |
584 | rs = SvREFCNT_inc(nrs); |
585 | sv_setsv(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), rs); |
45d8adaa |
586 | |
79072805 |
587 | if (do_undump) |
588 | my_unexec(); |
589 | |
8990e307 |
590 | if (dowarn) |
591 | gv_check(defstash); |
592 | |
a0d0e21e |
593 | LEAVE; |
594 | FREETMPS; |
c07a80fd |
595 | |
596 | #ifdef DEBUGGING_MSTATS |
597 | if ((s=getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) |
598 | dump_mstats("after compilation:"); |
599 | #endif |
600 | |
a0d0e21e |
601 | ENTER; |
602 | restartop = 0; |
79072805 |
603 | return 0; |
604 | } |
605 | |
606 | int |
607 | perl_run(sv_interp) |
93a17b20 |
608 | PerlInterpreter *sv_interp; |
79072805 |
609 | { |
610 | if (!(curinterp = sv_interp)) |
611 | return 255; |
a5f75d66 |
612 | switch (Sigsetjmp(top_env,1)) { |
79072805 |
613 | case 1: |
614 | cxstack_ix = -1; /* start context stack again */ |
615 | break; |
616 | case 2: |
617 | curstash = defstash; |
93a17b20 |
618 | if (endav) |
619 | calllist(endav); |
a0d0e21e |
620 | FREETMPS; |
c07a80fd |
621 | #ifdef DEBUGGING_MSTATS |
622 | if (getenv("PERL_DEBUG_MSTATS")) |
623 | dump_mstats("after execution: "); |
624 | #endif |
93a17b20 |
625 | return(statusvalue); /* my_exit() was called */ |
79072805 |
626 | case 3: |
627 | if (!restartop) { |
760ac839 |
628 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e |
629 | FREETMPS; |
8990e307 |
630 | return 1; |
83025b21 |
631 | } |
6e72f9df |
632 | if (curstack != mainstack) { |
79072805 |
633 | dSP; |
6e72f9df |
634 | SWITCHSTACK(curstack, mainstack); |
79072805 |
635 | } |
636 | break; |
8d063cd8 |
637 | } |
79072805 |
638 | |
760ac839 |
639 | DEBUG_r(PerlIO_printf(PerlIO_stderr(), "%s $` $& $' support.\n", |
6e72f9df |
640 | sawampersand ? "Enabling" : "Omitting")); |
641 | |
79072805 |
642 | if (!restartop) { |
643 | DEBUG_x(dump_all()); |
760ac839 |
644 | DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); |
79072805 |
645 | |
646 | if (minus_c) { |
760ac839 |
647 | PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", origfilename); |
79072805 |
648 | my_exit(0); |
649 | } |
a0d0e21e |
650 | if (perldb && DBsingle) |
651 | sv_setiv(DBsingle, 1); |
45d8adaa |
652 | } |
79072805 |
653 | |
654 | /* do it */ |
655 | |
656 | if (restartop) { |
657 | op = restartop; |
658 | restartop = 0; |
ab821d7f |
659 | runops(); |
79072805 |
660 | } |
661 | else if (main_start) { |
662 | op = main_start; |
ab821d7f |
663 | runops(); |
79072805 |
664 | } |
79072805 |
665 | |
666 | my_exit(0); |
a0d0e21e |
667 | return 0; |
79072805 |
668 | } |
669 | |
670 | void |
671 | my_exit(status) |
748a9306 |
672 | U32 status; |
79072805 |
673 | { |
a0d0e21e |
674 | register CONTEXT *cx; |
675 | I32 gimme; |
676 | SV **newsp; |
677 | |
748a9306 |
678 | statusvalue = FIXSTATUS(status); |
a0d0e21e |
679 | if (cxstack_ix >= 0) { |
680 | if (cxstack_ix > 0) |
681 | dounwind(0); |
682 | POPBLOCK(cx,curpm); |
683 | LEAVE; |
684 | } |
a5f75d66 |
685 | Siglongjmp(top_env, 2); |
79072805 |
686 | } |
687 | |
a0d0e21e |
688 | SV* |
689 | perl_get_sv(name, create) |
690 | char* name; |
691 | I32 create; |
692 | { |
693 | GV* gv = gv_fetchpv(name, create, SVt_PV); |
694 | if (gv) |
695 | return GvSV(gv); |
696 | return Nullsv; |
697 | } |
698 | |
699 | AV* |
700 | perl_get_av(name, create) |
701 | char* name; |
702 | I32 create; |
703 | { |
704 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); |
705 | if (create) |
706 | return GvAVn(gv); |
707 | if (gv) |
708 | return GvAV(gv); |
709 | return Nullav; |
710 | } |
711 | |
712 | HV* |
713 | perl_get_hv(name, create) |
714 | char* name; |
715 | I32 create; |
716 | { |
717 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); |
718 | if (create) |
719 | return GvHVn(gv); |
720 | if (gv) |
721 | return GvHV(gv); |
722 | return Nullhv; |
723 | } |
724 | |
725 | CV* |
726 | perl_get_cv(name, create) |
727 | char* name; |
728 | I32 create; |
729 | { |
730 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); |
731 | if (create && !GvCV(gv)) |
732 | return newSUB(start_subparse(), |
733 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
4633a7c4 |
734 | Nullop, |
a0d0e21e |
735 | Nullop); |
736 | if (gv) |
737 | return GvCV(gv); |
738 | return Nullcv; |
739 | } |
740 | |
79072805 |
741 | /* Be sure to refetch the stack pointer after calling these routines. */ |
742 | |
a0d0e21e |
743 | I32 |
744 | perl_call_argv(subname, flags, argv) |
8990e307 |
745 | char *subname; |
a0d0e21e |
746 | I32 flags; /* See G_* flags in cop.h */ |
747 | register char **argv; /* null terminated arg list */ |
8990e307 |
748 | { |
a0d0e21e |
749 | dSP; |
8990e307 |
750 | |
a0d0e21e |
751 | PUSHMARK(sp); |
752 | if (argv) { |
8990e307 |
753 | while (*argv) { |
a0d0e21e |
754 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 |
755 | argv++; |
756 | } |
a0d0e21e |
757 | PUTBACK; |
8990e307 |
758 | } |
a0d0e21e |
759 | return perl_call_pv(subname, flags); |
8990e307 |
760 | } |
761 | |
a0d0e21e |
762 | I32 |
763 | perl_call_pv(subname, flags) |
764 | char *subname; /* name of the subroutine */ |
765 | I32 flags; /* See G_* flags in cop.h */ |
766 | { |
767 | return perl_call_sv((SV*)perl_get_cv(subname, TRUE), flags); |
768 | } |
769 | |
770 | I32 |
771 | perl_call_method(methname, flags) |
772 | char *methname; /* name of the subroutine */ |
773 | I32 flags; /* See G_* flags in cop.h */ |
774 | { |
775 | dSP; |
776 | OP myop; |
777 | if (!op) |
778 | op = &myop; |
779 | XPUSHs(sv_2mortal(newSVpv(methname,0))); |
780 | PUTBACK; |
781 | pp_method(); |
782 | return perl_call_sv(*stack_sp--, flags); |
783 | } |
784 | |
785 | /* May be called with any of a CV, a GV, or an SV containing the name. */ |
786 | I32 |
787 | perl_call_sv(sv, flags) |
788 | SV* sv; |
789 | I32 flags; /* See G_* flags in cop.h */ |
790 | { |
791 | LOGOP myop; /* fake syntax tree node */ |
792 | SV** sp = stack_sp; |
793 | I32 oldmark = TOPMARK; |
794 | I32 retval; |
a5f75d66 |
795 | Sigjmp_buf oldtop; |
a0d0e21e |
796 | I32 oldscope; |
6e72f9df |
797 | static CV *DBcv; |
a0d0e21e |
798 | |
799 | if (flags & G_DISCARD) { |
800 | ENTER; |
801 | SAVETMPS; |
802 | } |
803 | |
804 | SAVESPTR(op); |
805 | op = (OP*)&myop; |
806 | Zero(op, 1, LOGOP); |
807 | EXTEND(stack_sp, 1); |
808 | *++stack_sp = sv; |
809 | oldscope = scopestack_ix; |
810 | |
811 | if (!(flags & G_NOARGS)) |
812 | myop.op_flags = OPf_STACKED; |
813 | myop.op_next = Nullop; |
814 | myop.op_flags |= OPf_KNOW; |
815 | if (flags & G_ARRAY) |
816 | myop.op_flags |= OPf_LIST; |
817 | |
6e72f9df |
818 | if (perldb && curstash != debstash |
819 | && (DBcv || (DBcv = GvCV(DBsub)))) /* to handle first BEGIN of -d */ |
820 | op->op_private |= OPpENTERSUB_DB; |
821 | |
a0d0e21e |
822 | if (flags & G_EVAL) { |
a5f75d66 |
823 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
a0d0e21e |
824 | |
825 | cLOGOP->op_other = op; |
826 | markstack_ptr--; |
4633a7c4 |
827 | /* we're trying to emulate pp_entertry() here */ |
828 | { |
829 | register CONTEXT *cx; |
830 | I32 gimme = GIMME; |
831 | |
832 | ENTER; |
833 | SAVETMPS; |
834 | |
835 | push_return(op->op_next); |
836 | PUSHBLOCK(cx, CXt_EVAL, stack_sp); |
837 | PUSHEVAL(cx, 0, 0); |
838 | eval_root = op; /* Only needed so that goto works right. */ |
839 | |
840 | in_eval = 1; |
841 | if (flags & G_KEEPERR) |
842 | in_eval |= 4; |
843 | else |
844 | sv_setpv(GvSV(errgv),""); |
845 | } |
a0d0e21e |
846 | markstack_ptr++; |
847 | |
848 | restart: |
a5f75d66 |
849 | switch (Sigsetjmp(top_env,1)) { |
a0d0e21e |
850 | case 0: |
851 | break; |
852 | case 1: |
748a9306 |
853 | #ifdef VMS |
a0d0e21e |
854 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 |
855 | #else |
856 | statusvalue = 1; |
857 | #endif |
a0d0e21e |
858 | /* FALL THROUGH */ |
859 | case 2: |
860 | /* my_exit() was called */ |
861 | curstash = defstash; |
862 | FREETMPS; |
a5f75d66 |
863 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e |
864 | if (statusvalue) |
865 | croak("Callback called exit"); |
866 | my_exit(statusvalue); |
867 | /* NOTREACHED */ |
868 | case 3: |
869 | if (restartop) { |
870 | op = restartop; |
871 | restartop = 0; |
872 | goto restart; |
873 | } |
874 | stack_sp = stack_base + oldmark; |
875 | if (flags & G_ARRAY) |
876 | retval = 0; |
877 | else { |
878 | retval = 1; |
879 | *++stack_sp = &sv_undef; |
880 | } |
881 | goto cleanup; |
882 | } |
883 | } |
884 | |
885 | if (op == (OP*)&myop) |
886 | op = pp_entersub(); |
887 | if (op) |
ab821d7f |
888 | runops(); |
a0d0e21e |
889 | retval = stack_sp - (stack_base + oldmark); |
4633a7c4 |
890 | if ((flags & G_EVAL) && !(flags & G_KEEPERR)) |
891 | sv_setpv(GvSV(errgv),""); |
a0d0e21e |
892 | |
893 | cleanup: |
894 | if (flags & G_EVAL) { |
895 | if (scopestack_ix > oldscope) { |
a0a2876f |
896 | SV **newsp; |
897 | PMOP *newpm; |
898 | I32 gimme; |
899 | register CONTEXT *cx; |
900 | I32 optype; |
901 | |
902 | POPBLOCK(cx,newpm); |
903 | POPEVAL(cx); |
904 | pop_return(); |
905 | curpm = newpm; |
906 | LEAVE; |
a0d0e21e |
907 | } |
a5f75d66 |
908 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e |
909 | } |
910 | if (flags & G_DISCARD) { |
911 | stack_sp = stack_base + oldmark; |
912 | retval = 0; |
913 | FREETMPS; |
914 | LEAVE; |
915 | } |
916 | return retval; |
917 | } |
918 | |
6e72f9df |
919 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 |
920 | |
a0d0e21e |
921 | I32 |
4633a7c4 |
922 | perl_eval_sv(sv, flags) |
8990e307 |
923 | SV* sv; |
4633a7c4 |
924 | I32 flags; /* See G_* flags in cop.h */ |
a0d0e21e |
925 | { |
926 | UNOP myop; /* fake syntax tree node */ |
4633a7c4 |
927 | SV** sp = stack_sp; |
928 | I32 oldmark = sp - stack_base; |
929 | I32 retval; |
a5f75d66 |
930 | Sigjmp_buf oldtop; |
4633a7c4 |
931 | I32 oldscope; |
79072805 |
932 | |
4633a7c4 |
933 | if (flags & G_DISCARD) { |
934 | ENTER; |
935 | SAVETMPS; |
936 | } |
937 | |
79072805 |
938 | SAVESPTR(op); |
79072805 |
939 | op = (OP*)&myop; |
a0d0e21e |
940 | Zero(op, 1, UNOP); |
4633a7c4 |
941 | EXTEND(stack_sp, 1); |
942 | *++stack_sp = sv; |
943 | oldscope = scopestack_ix; |
79072805 |
944 | |
4633a7c4 |
945 | if (!(flags & G_NOARGS)) |
946 | myop.op_flags = OPf_STACKED; |
79072805 |
947 | myop.op_next = Nullop; |
6e72f9df |
948 | myop.op_type = OP_ENTEREVAL; |
4633a7c4 |
949 | myop.op_flags |= OPf_KNOW; |
6e72f9df |
950 | if (flags & G_KEEPERR) |
951 | myop.op_flags |= OPf_SPECIAL; |
4633a7c4 |
952 | if (flags & G_ARRAY) |
6e72f9df |
953 | myop.op_flags |= OPf_LIST; |
79072805 |
954 | |
a5f75d66 |
955 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
4633a7c4 |
956 | |
957 | restart: |
a5f75d66 |
958 | switch (Sigsetjmp(top_env,1)) { |
4633a7c4 |
959 | case 0: |
960 | break; |
961 | case 1: |
962 | #ifdef VMS |
963 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
964 | #else |
965 | statusvalue = 1; |
966 | #endif |
967 | /* FALL THROUGH */ |
968 | case 2: |
969 | /* my_exit() was called */ |
970 | curstash = defstash; |
971 | FREETMPS; |
a5f75d66 |
972 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
4633a7c4 |
973 | if (statusvalue) |
974 | croak("Callback called exit"); |
975 | my_exit(statusvalue); |
976 | /* NOTREACHED */ |
977 | case 3: |
978 | if (restartop) { |
979 | op = restartop; |
980 | restartop = 0; |
981 | goto restart; |
982 | } |
983 | stack_sp = stack_base + oldmark; |
984 | if (flags & G_ARRAY) |
985 | retval = 0; |
986 | else { |
987 | retval = 1; |
988 | *++stack_sp = &sv_undef; |
989 | } |
990 | goto cleanup; |
991 | } |
992 | |
993 | if (op == (OP*)&myop) |
994 | op = pp_entereval(); |
995 | if (op) |
ab821d7f |
996 | runops(); |
4633a7c4 |
997 | retval = stack_sp - (stack_base + oldmark); |
6e72f9df |
998 | if (!(flags & G_KEEPERR)) |
4633a7c4 |
999 | sv_setpv(GvSV(errgv),""); |
1000 | |
1001 | cleanup: |
a5f75d66 |
1002 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
4633a7c4 |
1003 | if (flags & G_DISCARD) { |
1004 | stack_sp = stack_base + oldmark; |
1005 | retval = 0; |
1006 | FREETMPS; |
1007 | LEAVE; |
1008 | } |
1009 | return retval; |
1010 | } |
1011 | |
1012 | /* Require a module. */ |
1013 | |
1014 | void |
1015 | perl_require_pv(pv) |
1016 | char* pv; |
1017 | { |
1018 | SV* sv = sv_newmortal(); |
1019 | sv_setpv(sv, "require '"); |
1020 | sv_catpv(sv, pv); |
1021 | sv_catpv(sv, "'"); |
1022 | perl_eval_sv(sv, G_DISCARD); |
79072805 |
1023 | } |
1024 | |
79072805 |
1025 | void |
79072805 |
1026 | magicname(sym,name,namlen) |
1027 | char *sym; |
1028 | char *name; |
1029 | I32 namlen; |
1030 | { |
1031 | register GV *gv; |
1032 | |
85e6fe83 |
1033 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 |
1034 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
1035 | } |
1036 | |
748a9306 |
1037 | #if defined(DOSISH) |
1038 | # define PERLLIB_SEP ';' |
79072805 |
1039 | #else |
232e078e |
1040 | # if defined(VMS) |
1041 | # define PERLLIB_SEP '|' |
1042 | # else |
748a9306 |
1043 | # define PERLLIB_SEP ':' |
232e078e |
1044 | # endif |
79072805 |
1045 | #endif |
760ac839 |
1046 | #ifndef PERLLIB_MANGLE |
1047 | # define PERLLIB_MANGLE(s,n) (s) |
1048 | #endif |
79072805 |
1049 | |
1050 | static void |
1051 | incpush(p) |
1052 | char *p; |
1053 | { |
1054 | char *s; |
1055 | |
1056 | if (!p) |
1057 | return; |
1058 | |
1059 | /* Break at all separators */ |
1060 | while (*p) { |
1061 | /* First, skip any consecutive separators */ |
1062 | while ( *p == PERLLIB_SEP ) { |
1063 | /* Uncomment the next line for PATH semantics */ |
a0d0e21e |
1064 | /* av_push(GvAVn(incgv), newSVpv(".", 1)); */ |
79072805 |
1065 | p++; |
1066 | } |
93a17b20 |
1067 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { |
760ac839 |
1068 | av_push(GvAVn(incgv), newSVpv(PERLLIB_MANGLE(p, (STRLEN)(s - p)), |
1069 | (STRLEN)(s - p))); |
79072805 |
1070 | p = s + 1; |
1071 | } else { |
760ac839 |
1072 | av_push(GvAVn(incgv), newSVpv(PERLLIB_MANGLE(p, 0), 0)); |
79072805 |
1073 | break; |
1074 | } |
1075 | } |
1076 | } |
1077 | |
ab821d7f |
1078 | static void |
1a30305b |
1079 | usage(name) /* XXX move this out into a module ? */ |
4633a7c4 |
1080 | char *name; |
1081 | { |
ab821d7f |
1082 | /* This message really ought to be max 23 lines. |
1083 | * Removed -h because the user already knows that opton. Others? */ |
1084 | printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name); |
4633a7c4 |
1085 | printf("\n -0[octal] specify record separator (\\0, if no argument)"); |
ab821d7f |
1086 | printf("\n -a autosplit mode with -n or -p (splits $_ into @F)"); |
4633a7c4 |
1087 | printf("\n -c check syntax only (runs BEGIN and END blocks)"); |
1a30305b |
1088 | printf("\n -d[:debugger] run scripts under debugger"); |
4633a7c4 |
1089 | printf("\n -D[number/list] set debugging flags (argument is a bit mask or flags)"); |
ab821d7f |
1090 | printf("\n -e 'command' one line of script. Several -e's allowed. Omit [programfile]."); |
1091 | printf("\n -F/pattern/ split() pattern for autosplit (-a). The //'s are optional."); |
4633a7c4 |
1092 | printf("\n -i[extension] edit <> files in place (make backup if extension supplied)"); |
ab821d7f |
1093 | printf("\n -Idirectory specify @INC/#include directory (may be used more then once)"); |
4633a7c4 |
1094 | printf("\n -l[octal] enable line ending processing, specifies line teminator"); |
ab821d7f |
1095 | printf("\n -[mM][-]module.. executes `use/no module...' before executing your script."); |
4633a7c4 |
1096 | printf("\n -n assume 'while (<>) { ... }' loop arround your script"); |
1097 | printf("\n -p assume loop like -n but print line also like sed"); |
1098 | printf("\n -P run script through C preprocessor before compilation"); |
4633a7c4 |
1099 | printf("\n -s enable some switch parsing for switches after script name"); |
1100 | printf("\n -S look for the script using PATH environment variable"); |
1101 | printf("\n -T turn on tainting checks"); |
1102 | printf("\n -u dump core after parsing script"); |
1103 | printf("\n -U allow unsafe operations"); |
1104 | printf("\n -v print version number and patchlevel of perl"); |
1a30305b |
1105 | printf("\n -V[:variable] print perl configuration information"); |
ab821d7f |
1106 | printf("\n -w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT."); |
4633a7c4 |
1107 | printf("\n -x[directory] strip off text before #!perl line and perhaps cd to directory\n"); |
1108 | } |
1109 | |
79072805 |
1110 | /* This routine handles any switches that can be given during run */ |
1111 | |
1112 | char * |
1113 | moreswitches(s) |
1114 | char *s; |
1115 | { |
1116 | I32 numlen; |
c07a80fd |
1117 | U32 rschar; |
79072805 |
1118 | |
1119 | switch (*s) { |
1120 | case '0': |
c07a80fd |
1121 | rschar = scan_oct(s, 4, &numlen); |
1122 | SvREFCNT_dec(nrs); |
1123 | if (rschar & ~((U8)~0)) |
1124 | nrs = &sv_undef; |
1125 | else if (!rschar && numlen >= 2) |
1126 | nrs = newSVpv("", 0); |
1127 | else { |
1128 | char ch = rschar; |
1129 | nrs = newSVpv(&ch, 1); |
79072805 |
1130 | } |
1131 | return s + numlen; |
2304df62 |
1132 | case 'F': |
1133 | minus_F = TRUE; |
a0d0e21e |
1134 | splitstr = savepv(s + 1); |
2304df62 |
1135 | s += strlen(s); |
1136 | return s; |
79072805 |
1137 | case 'a': |
1138 | minus_a = TRUE; |
1139 | s++; |
1140 | return s; |
1141 | case 'c': |
1142 | minus_c = TRUE; |
1143 | s++; |
1144 | return s; |
1145 | case 'd': |
463ee0b2 |
1146 | taint_not("-d"); |
4633a7c4 |
1147 | s++; |
c07a80fd |
1148 | if (*s == ':' || *s == '=') { |
4633a7c4 |
1149 | sprintf(buf, "use Devel::%s;", ++s); |
1150 | s += strlen(s); |
1151 | my_setenv("PERL5DB",buf); |
1152 | } |
a0d0e21e |
1153 | if (!perldb) { |
1154 | perldb = TRUE; |
1155 | init_debugger(); |
1156 | } |
79072805 |
1157 | return s; |
1158 | case 'D': |
1159 | #ifdef DEBUGGING |
463ee0b2 |
1160 | taint_not("-D"); |
79072805 |
1161 | if (isALPHA(s[1])) { |
8990e307 |
1162 | static char debopts[] = "psltocPmfrxuLHXD"; |
79072805 |
1163 | char *d; |
1164 | |
93a17b20 |
1165 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
79072805 |
1166 | debug |= 1 << (d - debopts); |
1167 | } |
1168 | else { |
1169 | debug = atoi(s+1); |
1170 | for (s++; isDIGIT(*s); s++) ; |
1171 | } |
8990e307 |
1172 | debug |= 0x80000000; |
79072805 |
1173 | #else |
1174 | warn("Recompile perl with -DDEBUGGING to use -D switch\n"); |
a0d0e21e |
1175 | for (s++; isALNUM(*s); s++) ; |
79072805 |
1176 | #endif |
1177 | /*SUPPRESS 530*/ |
1178 | return s; |
4633a7c4 |
1179 | case 'h': |
1180 | usage(origargv[0]); |
1181 | exit(0); |
79072805 |
1182 | case 'i': |
1183 | if (inplace) |
1184 | Safefree(inplace); |
a0d0e21e |
1185 | inplace = savepv(s+1); |
79072805 |
1186 | /*SUPPRESS 530*/ |
1187 | for (s = inplace; *s && !isSPACE(*s); s++) ; |
1188 | *s = '\0'; |
1189 | break; |
1190 | case 'I': |
463ee0b2 |
1191 | taint_not("-I"); |
79072805 |
1192 | if (*++s) { |
748a9306 |
1193 | char *e; |
1194 | for (e = s; *e && !isSPACE(*e); e++) ; |
1195 | av_push(GvAVn(incgv),newSVpv(s,e-s)); |
1196 | if (*e) |
1197 | return e; |
79072805 |
1198 | } |
1199 | else |
463ee0b2 |
1200 | croak("No space allowed after -I"); |
79072805 |
1201 | break; |
1202 | case 'l': |
1203 | minus_l = TRUE; |
1204 | s++; |
a0d0e21e |
1205 | if (ors) |
1206 | Safefree(ors); |
79072805 |
1207 | if (isDIGIT(*s)) { |
a0d0e21e |
1208 | ors = savepv("\n"); |
79072805 |
1209 | orslen = 1; |
1210 | *ors = scan_oct(s, 3 + (*s == '0'), &numlen); |
1211 | s += numlen; |
1212 | } |
1213 | else { |
c07a80fd |
1214 | if (RsPARA(nrs)) { |
6e72f9df |
1215 | ors = "\n\n"; |
c07a80fd |
1216 | orslen = 2; |
1217 | } |
1218 | else |
1219 | ors = SvPV(nrs, orslen); |
6e72f9df |
1220 | ors = savepvn(ors, orslen); |
79072805 |
1221 | } |
1222 | return s; |
1a30305b |
1223 | case 'M': |
1224 | taint_not("-M"); /* XXX ? */ |
1225 | /* FALL THROUGH */ |
1226 | case 'm': |
1227 | taint_not("-m"); /* XXX ? */ |
1228 | if (*++s) { |
a5f75d66 |
1229 | char *start; |
1230 | char *use = "use "; |
1231 | /* -M-foo == 'no foo' */ |
1232 | if (*s == '-') { use = "no "; ++s; } |
1233 | Sv = newSVpv(use,0); |
1234 | start = s; |
1a30305b |
1235 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd |
1236 | while(isALNUM(*s) || *s==':') ++s; |
1237 | if (*s != '=') { |
1238 | sv_catpv(Sv, start); |
1239 | if (*(start-1) == 'm') { |
1240 | if (*s != '\0') |
1241 | croak("Can't use '%c' after -mname", *s); |
1242 | sv_catpv( Sv, " ()"); |
1243 | } |
1244 | } else { |
1245 | sv_catpvn(Sv, start, s-start); |
a5f75d66 |
1246 | sv_catpv(Sv, " split(/,/,q{"); |
c07a80fd |
1247 | sv_catpv(Sv, ++s); |
a5f75d66 |
1248 | sv_catpv(Sv, "})"); |
c07a80fd |
1249 | } |
1a30305b |
1250 | s += strlen(s); |
c07a80fd |
1251 | if (preambleav == NULL) |
1252 | preambleav = newAV(); |
1253 | av_push(preambleav, Sv); |
1a30305b |
1254 | } |
1255 | else |
1256 | croak("No space allowed after -%c", *(s-1)); |
1257 | return s; |
79072805 |
1258 | case 'n': |
1259 | minus_n = TRUE; |
1260 | s++; |
1261 | return s; |
1262 | case 'p': |
1263 | minus_p = TRUE; |
1264 | s++; |
1265 | return s; |
1266 | case 's': |
463ee0b2 |
1267 | taint_not("-s"); |
79072805 |
1268 | doswitches = TRUE; |
1269 | s++; |
1270 | return s; |
463ee0b2 |
1271 | case 'T': |
1272 | tainting = TRUE; |
1273 | s++; |
1274 | return s; |
79072805 |
1275 | case 'u': |
1276 | do_undump = TRUE; |
1277 | s++; |
1278 | return s; |
1279 | case 'U': |
1280 | unsafe = TRUE; |
1281 | s++; |
1282 | return s; |
1283 | case 'v': |
a5f75d66 |
1284 | #if defined(SUBVERSION) && SUBVERSION > 0 |
1285 | printf("\nThis is perl, version 5.%03d_%02d", PATCHLEVEL, SUBVERSION); |
1286 | #else |
1287 | printf("\nThis is perl, version %s",patchlevel); |
1288 | #endif |
1a30305b |
1289 | |
760ac839 |
1290 | printf("\n\nCopyright 1987-1996, Larry Wall\n"); |
1291 | printf("\n\t+ suidperl security patch"); |
79072805 |
1292 | #ifdef MSDOS |
760ac839 |
1293 | printf("MS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); |
4633a7c4 |
1294 | #endif |
79072805 |
1295 | #ifdef OS2 |
760ac839 |
1296 | printf("OS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" |
1297 | "Version 5 port Copyright (c) 1994-1996, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 |
1298 | #endif |
79072805 |
1299 | #ifdef atarist |
760ac839 |
1300 | printf("atariST series port, ++jrb bammi@cadence.com\n"); |
79072805 |
1301 | #endif |
760ac839 |
1302 | printf("\n\ |
79072805 |
1303 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
760ac839 |
1304 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n"); |
79072805 |
1305 | #ifdef MSDOS |
1306 | usage(origargv[0]); |
1307 | #endif |
1308 | exit(0); |
1309 | case 'w': |
1310 | dowarn = TRUE; |
1311 | s++; |
1312 | return s; |
a0d0e21e |
1313 | case '*': |
79072805 |
1314 | case ' ': |
1315 | if (s[1] == '-') /* Additional switches on #! line. */ |
1316 | return s+2; |
1317 | break; |
a0d0e21e |
1318 | case '-': |
79072805 |
1319 | case 0: |
1320 | case '\n': |
1321 | case '\t': |
1322 | break; |
a0d0e21e |
1323 | case 'P': |
1324 | if (preprocess) |
1325 | return s+1; |
1326 | /* FALL THROUGH */ |
79072805 |
1327 | default: |
a0d0e21e |
1328 | croak("Can't emulate -%.1s on #! line",s); |
79072805 |
1329 | } |
1330 | return Nullch; |
1331 | } |
1332 | |
1333 | /* compliments of Tom Christiansen */ |
1334 | |
1335 | /* unexec() can be found in the Gnu emacs distribution */ |
1336 | |
1337 | void |
1338 | my_unexec() |
1339 | { |
1340 | #ifdef UNEXEC |
1341 | int status; |
1342 | extern int etext; |
1343 | |
1344 | sprintf (buf, "%s.perldump", origfilename); |
1345 | sprintf (tokenbuf, "%s/perl", BIN); |
1346 | |
1347 | status = unexec(buf, tokenbuf, &etext, sbrk(0), 0); |
1348 | if (status) |
760ac839 |
1349 | PerlIO_printf(PerlIO_stderr(), "unexec of %s into %s failed!\n", tokenbuf, buf); |
a0d0e21e |
1350 | exit(status); |
79072805 |
1351 | #else |
a5f75d66 |
1352 | # ifdef VMS |
1353 | # include <lib$routines.h> |
1354 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ |
1355 | #else |
79072805 |
1356 | ABORT(); /* for use with undump */ |
1357 | #endif |
a5f75d66 |
1358 | #endif |
79072805 |
1359 | } |
1360 | |
1361 | static void |
1362 | init_main_stash() |
1363 | { |
463ee0b2 |
1364 | GV *gv; |
6e72f9df |
1365 | |
1366 | /* Note that strtab is a rather special HV. Assumptions are made |
1367 | about not iterating on it, and not adding tie magic to it. |
1368 | It is properly deallocated in perl_destruct() */ |
1369 | strtab = newHV(); |
1370 | HvSHAREKEYS_off(strtab); /* mandatory */ |
1371 | Newz(506,((XPVHV*)SvANY(strtab))->xhv_array, |
1372 | sizeof(HE*) * (((XPVHV*)SvANY(strtab))->xhv_max + 1), char); |
1373 | |
463ee0b2 |
1374 | curstash = defstash = newHV(); |
79072805 |
1375 | curstname = newSVpv("main",4); |
adbc6bb1 |
1376 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
1377 | SvREFCNT_dec(GvHV(gv)); |
1378 | GvHV(gv) = (HV*)SvREFCNT_inc(defstash); |
463ee0b2 |
1379 | SvREADONLY_on(gv); |
a0d0e21e |
1380 | HvNAME(defstash) = savepv("main"); |
85e6fe83 |
1381 | incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); |
a5f75d66 |
1382 | GvMULTI_on(incgv); |
a0d0e21e |
1383 | defgv = gv_fetchpv("_",TRUE, SVt_PVAV); |
4633a7c4 |
1384 | errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); |
a5f75d66 |
1385 | GvMULTI_on(errgv); |
8990e307 |
1386 | curstash = defstash; |
1387 | compiling.cop_stash = defstash; |
adbc6bb1 |
1388 | debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); |
4633a7c4 |
1389 | /* We must init $/ before switches are processed. */ |
1390 | sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1); |
79072805 |
1391 | } |
1392 | |
a0d0e21e |
1393 | #ifdef CAN_PROTOTYPE |
1394 | static void |
1395 | open_script(char *scriptname, bool dosearch, SV *sv) |
1396 | #else |
79072805 |
1397 | static void |
1398 | open_script(scriptname,dosearch,sv) |
1399 | char *scriptname; |
1400 | bool dosearch; |
1401 | SV *sv; |
a0d0e21e |
1402 | #endif |
79072805 |
1403 | { |
1404 | char *xfound = Nullch; |
1405 | char *xfailed = Nullch; |
1406 | register char *s; |
1407 | I32 len; |
a38d6535 |
1408 | int retval; |
1409 | #if defined(DOSISH) && !defined(OS2) && !defined(atarist) |
1410 | #define SEARCH_EXTS ".bat", ".cmd", NULL |
1411 | #endif |
ab821d7f |
1412 | #ifdef VMS |
1413 | # define SEARCH_EXTS ".pl", ".com", NULL |
1414 | #endif |
a38d6535 |
1415 | /* additional extensions to try in each dir if scriptname not found */ |
1416 | #ifdef SEARCH_EXTS |
1417 | char *ext[] = { SEARCH_EXTS }; |
1418 | int extidx = (strchr(scriptname,'.')) ? -1 : 0; /* has ext already */ |
1419 | #endif |
79072805 |
1420 | |
c07a80fd |
1421 | #ifdef VMS |
6e72f9df |
1422 | if (dosearch) { |
1423 | int hasdir, idx = 0, deftypes = 1; |
1424 | |
1425 | hasdir = (strpbrk(scriptname,":[</") != Nullch) ; |
1426 | /* The first time through, just add SEARCH_EXTS to whatever we |
1427 | * already have, so we can check for default file types. */ |
1428 | while (deftypes || (!hasdir && my_trnlnm("DCL$PATH",tokenbuf,idx++)) ) { |
1429 | if (deftypes) { deftypes = 0; *tokenbuf = '\0'; } |
c07a80fd |
1430 | strcat(tokenbuf,scriptname); |
1431 | #else /* !VMS */ |
93a17b20 |
1432 | if (dosearch && !strchr(scriptname, '/') && (s = getenv("PATH"))) { |
79072805 |
1433 | |
1434 | bufend = s + strlen(s); |
1435 | while (*s) { |
1436 | #ifndef DOSISH |
1437 | s = cpytill(tokenbuf,s,bufend,':',&len); |
1438 | #else |
1439 | #ifdef atarist |
1440 | for (len = 0; *s && *s != ',' && *s != ';'; tokenbuf[len++] = *s++); |
1441 | tokenbuf[len] = '\0'; |
1442 | #else |
1443 | for (len = 0; *s && *s != ';'; tokenbuf[len++] = *s++); |
1444 | tokenbuf[len] = '\0'; |
1445 | #endif |
1446 | #endif |
1447 | if (*s) |
1448 | s++; |
1449 | #ifndef DOSISH |
1450 | if (len && tokenbuf[len-1] != '/') |
1451 | #else |
1452 | #ifdef atarist |
1453 | if (len && ((tokenbuf[len-1] != '\\') && (tokenbuf[len-1] != '/'))) |
1454 | #else |
1455 | if (len && tokenbuf[len-1] != '\\') |
1456 | #endif |
1457 | #endif |
1458 | (void)strcat(tokenbuf+len,"/"); |
1459 | (void)strcat(tokenbuf+len,scriptname); |
c07a80fd |
1460 | #endif /* !VMS */ |
a38d6535 |
1461 | |
1462 | #ifdef SEARCH_EXTS |
1463 | len = strlen(tokenbuf); |
1464 | if (extidx > 0) /* reset after previous loop */ |
1465 | extidx = 0; |
1466 | do { |
1467 | #endif |
760ac839 |
1468 | DEBUG_p(PerlIO_printf(Perl_debug_log, "Looking for %s\n",tokenbuf)); |
a38d6535 |
1469 | retval = Stat(tokenbuf,&statbuf); |
1470 | #ifdef SEARCH_EXTS |
1471 | } while ( retval < 0 /* not there */ |
1472 | && extidx>=0 && ext[extidx] /* try an extension? */ |
1473 | && strcpy(tokenbuf+len, ext[extidx++]) |
1474 | ); |
1475 | #endif |
1476 | if (retval < 0) |
79072805 |
1477 | continue; |
1478 | if (S_ISREG(statbuf.st_mode) |
1479 | && cando(S_IRUSR,TRUE,&statbuf) && cando(S_IXUSR,TRUE,&statbuf)) { |
1480 | xfound = tokenbuf; /* bingo! */ |
1481 | break; |
1482 | } |
1483 | if (!xfailed) |
a0d0e21e |
1484 | xfailed = savepv(tokenbuf); |
79072805 |
1485 | } |
1486 | if (!xfound) |
463ee0b2 |
1487 | croak("Can't execute %s", xfailed ? xfailed : scriptname ); |
79072805 |
1488 | if (xfailed) |
1489 | Safefree(xfailed); |
1490 | scriptname = xfound; |
1491 | } |
1492 | |
96436eeb |
1493 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { |
1494 | char *s = scriptname + 8; |
1495 | fdscript = atoi(s); |
1496 | while (isDIGIT(*s)) |
1497 | s++; |
1498 | if (*s) |
1499 | scriptname = s + 1; |
1500 | } |
1501 | else |
1502 | fdscript = -1; |
ab821d7f |
1503 | origfilename = savepv(e_tmpname ? "-e" : scriptname); |
79072805 |
1504 | curcop->cop_filegv = gv_fetchfile(origfilename); |
1505 | if (strEQ(origfilename,"-")) |
1506 | scriptname = ""; |
96436eeb |
1507 | if (fdscript >= 0) { |
760ac839 |
1508 | rsfp = PerlIO_fdopen(fdscript,"r"); |
96436eeb |
1509 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
760ac839 |
1510 | fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ |
96436eeb |
1511 | #endif |
1512 | } |
1513 | else if (preprocess) { |
79072805 |
1514 | char *cpp = CPPSTDIN; |
1515 | |
1516 | if (strEQ(cpp,"cppstdin")) |
1517 | sprintf(tokenbuf, "%s/%s", SCRIPTDIR, cpp); |
1518 | else |
1519 | sprintf(tokenbuf, "%s", cpp); |
1520 | sv_catpv(sv,"-I"); |
fed7345c |
1521 | sv_catpv(sv,PRIVLIB_EXP); |
79072805 |
1522 | #ifdef MSDOS |
1523 | (void)sprintf(buf, "\ |
1524 | sed %s -e \"/^[^#]/b\" \ |
1525 | -e \"/^#[ ]*include[ ]/b\" \ |
1526 | -e \"/^#[ ]*define[ ]/b\" \ |
1527 | -e \"/^#[ ]*if[ ]/b\" \ |
1528 | -e \"/^#[ ]*ifdef[ ]/b\" \ |
1529 | -e \"/^#[ ]*ifndef[ ]/b\" \ |
1530 | -e \"/^#[ ]*else/b\" \ |
1531 | -e \"/^#[ ]*elif[ ]/b\" \ |
1532 | -e \"/^#[ ]*undef[ ]/b\" \ |
1533 | -e \"/^#[ ]*endif/b\" \ |
1534 | -e \"s/^#.*//\" \ |
1535 | %s | %s -C %s %s", |
1536 | (doextract ? "-e \"1,/^#/d\n\"" : ""), |
1537 | #else |
1538 | (void)sprintf(buf, "\ |
1539 | %s %s -e '/^[^#]/b' \ |
1540 | -e '/^#[ ]*include[ ]/b' \ |
1541 | -e '/^#[ ]*define[ ]/b' \ |
1542 | -e '/^#[ ]*if[ ]/b' \ |
1543 | -e '/^#[ ]*ifdef[ ]/b' \ |
1544 | -e '/^#[ ]*ifndef[ ]/b' \ |
1545 | -e '/^#[ ]*else/b' \ |
1546 | -e '/^#[ ]*elif[ ]/b' \ |
1547 | -e '/^#[ ]*undef[ ]/b' \ |
1548 | -e '/^#[ ]*endif/b' \ |
1549 | -e 's/^[ ]*#.*//' \ |
1550 | %s | %s -C %s %s", |
1551 | #ifdef LOC_SED |
1552 | LOC_SED, |
1553 | #else |
1554 | "sed", |
1555 | #endif |
1556 | (doextract ? "-e '1,/^#/d\n'" : ""), |
1557 | #endif |
463ee0b2 |
1558 | scriptname, tokenbuf, SvPV(sv, na), CPPMINUS); |
79072805 |
1559 | doextract = FALSE; |
1560 | #ifdef IAMSUID /* actually, this is caught earlier */ |
1561 | if (euid != uid && !euid) { /* if running suidperl */ |
1562 | #ifdef HAS_SETEUID |
1563 | (void)seteuid(uid); /* musn't stay setuid root */ |
1564 | #else |
1565 | #ifdef HAS_SETREUID |
85e6fe83 |
1566 | (void)setreuid((Uid_t)-1, uid); |
1567 | #else |
1568 | #ifdef HAS_SETRESUID |
1569 | (void)setresuid((Uid_t)-1, uid, (Uid_t)-1); |
79072805 |
1570 | #else |
1571 | setuid(uid); |
1572 | #endif |
1573 | #endif |
85e6fe83 |
1574 | #endif |
79072805 |
1575 | if (geteuid() != uid) |
463ee0b2 |
1576 | croak("Can't do seteuid!\n"); |
79072805 |
1577 | } |
1578 | #endif /* IAMSUID */ |
1579 | rsfp = my_popen(buf,"r"); |
1580 | } |
1581 | else if (!*scriptname) { |
463ee0b2 |
1582 | taint_not("program input from stdin"); |
760ac839 |
1583 | rsfp = PerlIO_stdin(); |
79072805 |
1584 | } |
96436eeb |
1585 | else { |
760ac839 |
1586 | rsfp = PerlIO_open(scriptname,"r"); |
96436eeb |
1587 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
760ac839 |
1588 | fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ |
96436eeb |
1589 | #endif |
1590 | } |
760ac839 |
1591 | if ((PerlIO*)rsfp == Nullfp) { |
13281fa4 |
1592 | #ifdef DOSUID |
a687059c |
1593 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
a0d0e21e |
1594 | if (euid && Stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 && |
13281fa4 |
1595 | statbuf.st_mode & (S_ISUID|S_ISGID)) { |
27e2fb84 |
1596 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c |
1597 | execv(buf, origargv); /* try again */ |
463ee0b2 |
1598 | croak("Can't do setuid\n"); |
13281fa4 |
1599 | } |
1600 | #endif |
1601 | #endif |
463ee0b2 |
1602 | croak("Can't open perl script \"%s\": %s\n", |
2304df62 |
1603 | SvPVX(GvSV(curcop->cop_filegv)), Strerror(errno)); |
13281fa4 |
1604 | } |
79072805 |
1605 | } |
8d063cd8 |
1606 | |
79072805 |
1607 | static void |
96436eeb |
1608 | validate_suid(validarg, scriptname) |
79072805 |
1609 | char *validarg; |
96436eeb |
1610 | char *scriptname; |
79072805 |
1611 | { |
96436eeb |
1612 | int which; |
1613 | |
13281fa4 |
1614 | /* do we need to emulate setuid on scripts? */ |
1615 | |
1616 | /* This code is for those BSD systems that have setuid #! scripts disabled |
1617 | * in the kernel because of a security problem. Merely defining DOSUID |
1618 | * in perl will not fix that problem, but if you have disabled setuid |
1619 | * scripts in the kernel, this will attempt to emulate setuid and setgid |
1620 | * on scripts that have those now-otherwise-useless bits set. The setuid |
27e2fb84 |
1621 | * root version must be called suidperl or sperlN.NNN. If regular perl |
1622 | * discovers that it has opened a setuid script, it calls suidperl with |
1623 | * the same argv that it had. If suidperl finds that the script it has |
1624 | * just opened is NOT setuid root, it sets the effective uid back to the |
1625 | * uid. We don't just make perl setuid root because that loses the |
1626 | * effective uid we had before invoking perl, if it was different from the |
1627 | * uid. |
13281fa4 |
1628 | * |
1629 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must |
1630 | * be defined in suidperl only. suidperl must be setuid root. The |
1631 | * Configure script will set this up for you if you want it. |
1632 | */ |
a687059c |
1633 | |
13281fa4 |
1634 | #ifdef DOSUID |
6e72f9df |
1635 | char *s, *s2; |
a0d0e21e |
1636 | |
760ac839 |
1637 | if (Fstat(PerlIO_fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */ |
463ee0b2 |
1638 | croak("Can't stat script \"%s\"",origfilename); |
96436eeb |
1639 | if (fdscript < 0 && statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 |
1640 | I32 len; |
13281fa4 |
1641 | |
a687059c |
1642 | #ifdef IAMSUID |
fe14fcc3 |
1643 | #ifndef HAS_SETREUID |
a687059c |
1644 | /* On this access check to make sure the directories are readable, |
1645 | * there is actually a small window that the user could use to make |
1646 | * filename point to an accessible directory. So there is a faint |
1647 | * chance that someone could execute a setuid script down in a |
1648 | * non-accessible directory. I don't know what to do about that. |
1649 | * But I don't think it's too important. The manual lies when |
1650 | * it says access() is useful in setuid programs. |
1651 | */ |
463ee0b2 |
1652 | if (access(SvPVX(GvSV(curcop->cop_filegv)),1)) /*double check*/ |
1653 | croak("Permission denied"); |
a687059c |
1654 | #else |
1655 | /* If we can swap euid and uid, then we can determine access rights |
1656 | * with a simple stat of the file, and then compare device and |
1657 | * inode to make sure we did stat() on the same file we opened. |
1658 | * Then we just have to make sure he or she can execute it. |
1659 | */ |
1660 | { |
1661 | struct stat tmpstatbuf; |
1662 | |
85e6fe83 |
1663 | if ( |
1664 | #ifdef HAS_SETREUID |
1665 | setreuid(euid,uid) < 0 |
a0d0e21e |
1666 | #else |
1667 | # if HAS_SETRESUID |
85e6fe83 |
1668 | setresuid(euid,uid,(Uid_t)-1) < 0 |
a0d0e21e |
1669 | # endif |
85e6fe83 |
1670 | #endif |
1671 | || getuid() != euid || geteuid() != uid) |
463ee0b2 |
1672 | croak("Can't swap uid and euid"); /* really paranoid */ |
a0d0e21e |
1673 | if (Stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0) |
463ee0b2 |
1674 | croak("Permission denied"); /* testing full pathname here */ |
a687059c |
1675 | if (tmpstatbuf.st_dev != statbuf.st_dev || |
1676 | tmpstatbuf.st_ino != statbuf.st_ino) { |
760ac839 |
1677 | (void)PerlIO_close(rsfp); |
79072805 |
1678 | if (rsfp = my_popen("/bin/mail root","w")) { /* heh, heh */ |
760ac839 |
1679 | PerlIO_printf(rsfp, |
a687059c |
1680 | "User %d tried to run dev %d ino %d in place of dev %d ino %d!\n\ |
1681 | (Filename of set-id script was %s, uid %d gid %d.)\n\nSincerely,\nperl\n", |
1682 | uid,tmpstatbuf.st_dev, tmpstatbuf.st_ino, |
1683 | statbuf.st_dev, statbuf.st_ino, |
463ee0b2 |
1684 | SvPVX(GvSV(curcop->cop_filegv)), |
20188a90 |
1685 | statbuf.st_uid, statbuf.st_gid); |
79072805 |
1686 | (void)my_pclose(rsfp); |
a687059c |
1687 | } |
463ee0b2 |
1688 | croak("Permission denied\n"); |
a687059c |
1689 | } |
85e6fe83 |
1690 | if ( |
1691 | #ifdef HAS_SETREUID |
1692 | setreuid(uid,euid) < 0 |
a0d0e21e |
1693 | #else |
1694 | # if defined(HAS_SETRESUID) |
85e6fe83 |
1695 | setresuid(uid,euid,(Uid_t)-1) < 0 |
a0d0e21e |
1696 | # endif |
85e6fe83 |
1697 | #endif |
1698 | || getuid() != uid || geteuid() != euid) |
463ee0b2 |
1699 | croak("Can't reswap uid and euid"); |
27e2fb84 |
1700 | if (!cando(S_IXUSR,FALSE,&statbuf)) /* can real uid exec? */ |
463ee0b2 |
1701 | croak("Permission denied\n"); |
a687059c |
1702 | } |
fe14fcc3 |
1703 | #endif /* HAS_SETREUID */ |
a687059c |
1704 | #endif /* IAMSUID */ |
1705 | |
27e2fb84 |
1706 | if (!S_ISREG(statbuf.st_mode)) |
463ee0b2 |
1707 | croak("Permission denied"); |
27e2fb84 |
1708 | if (statbuf.st_mode & S_IWOTH) |
463ee0b2 |
1709 | croak("Setuid/gid script is writable by world"); |
13281fa4 |
1710 | doswitches = FALSE; /* -s is insecure in suid */ |
79072805 |
1711 | curcop->cop_line++; |
760ac839 |
1712 | if (sv_gets(linestr, rsfp, 0) == Nullch || |
1713 | strnNE(SvPV(linestr,na),"#!",2) ) /* required even on Sys V */ |
463ee0b2 |
1714 | croak("No #! line"); |
760ac839 |
1715 | s = SvPV(linestr,na)+2; |
663a0e37 |
1716 | if (*s == ' ') s++; |
45d8adaa |
1717 | while (!isSPACE(*s)) s++; |
760ac839 |
1718 | for (s2 = s; (s2 > SvPV(linestr,na)+2 && |
6e72f9df |
1719 | (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ; |
1720 | if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ |
463ee0b2 |
1721 | croak("Not a perl script"); |
a687059c |
1722 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 |
1723 | /* |
1724 | * #! arg must be what we saw above. They can invoke it by |
1725 | * mentioning suidperl explicitly, but they may not add any strange |
1726 | * arguments beyond what #! says if they do invoke suidperl that way. |
1727 | */ |
1728 | len = strlen(validarg); |
1729 | if (strEQ(validarg," PHOOEY ") || |
45d8adaa |
1730 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
463ee0b2 |
1731 | croak("Args must match #! line"); |
a687059c |
1732 | |
1733 | #ifndef IAMSUID |
1734 | if (euid != uid && (statbuf.st_mode & S_ISUID) && |
1735 | euid == statbuf.st_uid) |
1736 | if (!do_undump) |
463ee0b2 |
1737 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c |
1738 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1739 | #endif /* IAMSUID */ |
13281fa4 |
1740 | |
1741 | if (euid) { /* oops, we're not the setuid root perl */ |
760ac839 |
1742 | (void)PerlIO_close(rsfp); |
13281fa4 |
1743 | #ifndef IAMSUID |
27e2fb84 |
1744 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c |
1745 | execv(buf, origargv); /* try again */ |
13281fa4 |
1746 | #endif |
463ee0b2 |
1747 | croak("Can't do setuid\n"); |
13281fa4 |
1748 | } |
1749 | |
83025b21 |
1750 | if (statbuf.st_mode & S_ISGID && statbuf.st_gid != egid) { |
fe14fcc3 |
1751 | #ifdef HAS_SETEGID |
a687059c |
1752 | (void)setegid(statbuf.st_gid); |
1753 | #else |
fe14fcc3 |
1754 | #ifdef HAS_SETREGID |
85e6fe83 |
1755 | (void)setregid((Gid_t)-1,statbuf.st_gid); |
1756 | #else |
1757 | #ifdef HAS_SETRESGID |
1758 | (void)setresgid((Gid_t)-1,statbuf.st_gid,(Gid_t)-1); |
a687059c |
1759 | #else |
1760 | setgid(statbuf.st_gid); |
1761 | #endif |
1762 | #endif |
85e6fe83 |
1763 | #endif |
83025b21 |
1764 | if (getegid() != statbuf.st_gid) |
463ee0b2 |
1765 | croak("Can't do setegid!\n"); |
83025b21 |
1766 | } |
a687059c |
1767 | if (statbuf.st_mode & S_ISUID) { |
1768 | if (statbuf.st_uid != euid) |
fe14fcc3 |
1769 | #ifdef HAS_SETEUID |
a687059c |
1770 | (void)seteuid(statbuf.st_uid); /* all that for this */ |
1771 | #else |
fe14fcc3 |
1772 | #ifdef HAS_SETREUID |
85e6fe83 |
1773 | (void)setreuid((Uid_t)-1,statbuf.st_uid); |
1774 | #else |
1775 | #ifdef HAS_SETRESUID |
1776 | (void)setresuid((Uid_t)-1,statbuf.st_uid,(Uid_t)-1); |
a687059c |
1777 | #else |
1778 | setuid(statbuf.st_uid); |
1779 | #endif |
1780 | #endif |
85e6fe83 |
1781 | #endif |
83025b21 |
1782 | if (geteuid() != statbuf.st_uid) |
463ee0b2 |
1783 | croak("Can't do seteuid!\n"); |
a687059c |
1784 | } |
83025b21 |
1785 | else if (uid) { /* oops, mustn't run as root */ |
fe14fcc3 |
1786 | #ifdef HAS_SETEUID |
85e6fe83 |
1787 | (void)seteuid((Uid_t)uid); |
a687059c |
1788 | #else |
fe14fcc3 |
1789 | #ifdef HAS_SETREUID |
85e6fe83 |
1790 | (void)setreuid((Uid_t)-1,(Uid_t)uid); |
a687059c |
1791 | #else |
85e6fe83 |
1792 | #ifdef HAS_SETRESUID |
1793 | (void)setresuid((Uid_t)-1,(Uid_t)uid,(Uid_t)-1); |
1794 | #else |
1795 | setuid((Uid_t)uid); |
1796 | #endif |
a687059c |
1797 | #endif |
1798 | #endif |
83025b21 |
1799 | if (geteuid() != uid) |
463ee0b2 |
1800 | croak("Can't do seteuid!\n"); |
83025b21 |
1801 | } |
748a9306 |
1802 | init_ids(); |
27e2fb84 |
1803 | if (!cando(S_IXUSR,TRUE,&statbuf)) |
463ee0b2 |
1804 | croak("Permission denied\n"); /* they can't do this */ |
13281fa4 |
1805 | } |
1806 | #ifdef IAMSUID |
1807 | else if (preprocess) |
463ee0b2 |
1808 | croak("-P not allowed for setuid/setgid script\n"); |
96436eeb |
1809 | else if (fdscript >= 0) |
1810 | croak("fd script not allowed in suidperl\n"); |
13281fa4 |
1811 | else |
463ee0b2 |
1812 | croak("Script is not setuid/setgid in suidperl\n"); |
96436eeb |
1813 | |
1814 | /* We absolutely must clear out any saved ids here, so we */ |
1815 | /* exec the real perl, substituting fd script for scriptname. */ |
1816 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ |
760ac839 |
1817 | PerlIO_rewind(rsfp); |
1818 | lseek(PerlIO_fileno(rsfp),(Off_t)0,0); /* just in case rewind didn't */ |
96436eeb |
1819 | for (which = 1; origargv[which] && origargv[which] != scriptname; which++) ; |
1820 | if (!origargv[which]) |
1821 | croak("Permission denied"); |
760ac839 |
1822 | (void)sprintf(buf, "/dev/fd/%d/%.127s", PerlIO_fileno(rsfp), origargv[which]); |
96436eeb |
1823 | origargv[which] = buf; |
1824 | |
1825 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
760ac839 |
1826 | fcntl(PerlIO_fileno(rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb |
1827 | #endif |
1828 | |
1829 | (void)sprintf(tokenbuf, "%s/perl%s", BIN, patchlevel); |
1830 | execv(tokenbuf, origargv); /* try again */ |
1831 | croak("Can't do setuid\n"); |
13281fa4 |
1832 | #endif /* IAMSUID */ |
a687059c |
1833 | #else /* !DOSUID */ |
a687059c |
1834 | if (euid != uid || egid != gid) { /* (suidperl doesn't exist, in fact) */ |
1835 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW |
760ac839 |
1836 | Fstat(PerlIO_fileno(rsfp),&statbuf); /* may be either wrapped or real suid */ |
a687059c |
1837 | if ((euid != uid && euid == statbuf.st_uid && statbuf.st_mode & S_ISUID) |
1838 | || |
1839 | (egid != gid && egid == statbuf.st_gid && statbuf.st_mode & S_ISGID) |
1840 | ) |
1841 | if (!do_undump) |
463ee0b2 |
1842 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c |
1843 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1844 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ |
1845 | /* not set-id, must be wrapped */ |
a687059c |
1846 | } |
13281fa4 |
1847 | #endif /* DOSUID */ |
79072805 |
1848 | } |
13281fa4 |
1849 | |
79072805 |
1850 | static void |
1851 | find_beginning() |
1852 | { |
6e72f9df |
1853 | register char *s, *s2; |
33b78306 |
1854 | |
1855 | /* skip forward in input to the real script? */ |
1856 | |
463ee0b2 |
1857 | taint_not("-x"); |
33b78306 |
1858 | while (doextract) { |
79072805 |
1859 | if ((s = sv_gets(linestr, rsfp, 0)) == Nullch) |
463ee0b2 |
1860 | croak("No Perl script found in input\n"); |
6e72f9df |
1861 | if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) { |
760ac839 |
1862 | PerlIO_ungetc(rsfp, '\n'); /* to keep line count right */ |
33b78306 |
1863 | doextract = FALSE; |
6e72f9df |
1864 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
1865 | s2 = s; |
1866 | while (*s == ' ' || *s == '\t') s++; |
1867 | if (*s++ == '-') { |
1868 | while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--; |
1869 | if (strnEQ(s2-4,"perl",4)) |
1870 | /*SUPPRESS 530*/ |
1871 | while (s = moreswitches(s)) ; |
33b78306 |
1872 | } |
79072805 |
1873 | if (cddir && chdir(cddir) < 0) |
463ee0b2 |
1874 | croak("Can't chdir to %s",cddir); |
83025b21 |
1875 | } |
1876 | } |
1877 | } |
1878 | |
79072805 |
1879 | static void |
748a9306 |
1880 | init_ids() |
352d5a3a |
1881 | { |
748a9306 |
1882 | uid = (int)getuid(); |
1883 | euid = (int)geteuid(); |
1884 | gid = (int)getgid(); |
1885 | egid = (int)getegid(); |
1886 | #ifdef VMS |
1887 | uid |= gid << 16; |
1888 | euid |= egid << 16; |
1889 | #endif |
4633a7c4 |
1890 | tainting |= (uid && (euid != uid || egid != gid)); |
748a9306 |
1891 | } |
79072805 |
1892 | |
748a9306 |
1893 | static void |
1894 | init_debugger() |
1895 | { |
79072805 |
1896 | curstash = debstash; |
748a9306 |
1897 | dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); |
79072805 |
1898 | AvREAL_off(dbargs); |
a0d0e21e |
1899 | DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); |
1900 | DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); |
748a9306 |
1901 | DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); |
1902 | DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); |
c07a80fd |
1903 | sv_setiv(DBsingle, 0); |
748a9306 |
1904 | DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); |
c07a80fd |
1905 | sv_setiv(DBtrace, 0); |
748a9306 |
1906 | DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); |
c07a80fd |
1907 | sv_setiv(DBsignal, 0); |
79072805 |
1908 | curstash = defstash; |
352d5a3a |
1909 | } |
1910 | |
79072805 |
1911 | static void |
8990e307 |
1912 | init_stacks() |
79072805 |
1913 | { |
6e72f9df |
1914 | curstack = newAV(); |
1915 | mainstack = curstack; /* remember in case we switch stacks */ |
1916 | AvREAL_off(curstack); /* not a real array */ |
1917 | av_extend(curstack,127); |
79072805 |
1918 | |
6e72f9df |
1919 | stack_base = AvARRAY(curstack); |
79072805 |
1920 | stack_sp = stack_base; |
8990e307 |
1921 | stack_max = stack_base + 127; |
79072805 |
1922 | |
6e72f9df |
1923 | /* Shouldn't these stacks be per-interpreter? */ |
1924 | if (markstack) { |
1925 | markstack_ptr = markstack; |
1926 | } else { |
1927 | New(54,markstack,64,I32); |
1928 | markstack_ptr = markstack; |
1929 | markstack_max = markstack + 64; |
1930 | } |
79072805 |
1931 | |
6e72f9df |
1932 | if (scopestack) { |
1933 | scopestack_ix = 0; |
1934 | } else { |
1935 | New(54,scopestack,32,I32); |
1936 | scopestack_ix = 0; |
1937 | scopestack_max = 32; |
1938 | } |
79072805 |
1939 | |
6e72f9df |
1940 | if (savestack) { |
1941 | savestack_ix = 0; |
1942 | } else { |
1943 | New(54,savestack,128,ANY); |
1944 | savestack_ix = 0; |
1945 | savestack_max = 128; |
1946 | } |
79072805 |
1947 | |
6e72f9df |
1948 | if (retstack) { |
1949 | retstack_ix = 0; |
1950 | } else { |
1951 | New(54,retstack,16,OP*); |
1952 | retstack_ix = 0; |
1953 | retstack_max = 16; |
1954 | } |
8d063cd8 |
1955 | |
a5f75d66 |
1956 | cxstack_max = 8192 / sizeof(CONTEXT) - 2; /* Use most of 8K. */ |
1957 | New(50,cxstack,cxstack_max + 1,CONTEXT); |
8990e307 |
1958 | cxstack_ix = -1; |
8990e307 |
1959 | |
1960 | New(50,tmps_stack,128,SV*); |
1961 | tmps_ix = -1; |
1962 | tmps_max = 128; |
1963 | |
79072805 |
1964 | DEBUG( { |
1965 | New(51,debname,128,char); |
1966 | New(52,debdelim,128,char); |
1967 | } ) |
378cc40b |
1968 | } |
33b78306 |
1969 | |
6e72f9df |
1970 | static void |
1971 | nuke_stacks() |
1972 | { |
1973 | Safefree(cxstack); |
1974 | Safefree(tmps_stack); |
1975 | } |
1976 | |
760ac839 |
1977 | static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
79072805 |
1978 | static void |
8990e307 |
1979 | init_lexer() |
1980 | { |
a0d0e21e |
1981 | tmpfp = rsfp; |
8990e307 |
1982 | |
1983 | lex_start(linestr); |
1984 | rsfp = tmpfp; |
1985 | subname = newSVpv("main",4); |
1986 | } |
1987 | |
1988 | static void |
79072805 |
1989 | init_predump_symbols() |
45d8adaa |
1990 | { |
93a17b20 |
1991 | GV *tmpgv; |
a0d0e21e |
1992 | GV *othergv; |
79072805 |
1993 | |
85e6fe83 |
1994 | sv_setpvn(GvSV(gv_fetchpv("\"", TRUE, SVt_PV)), " ", 1); |
79072805 |
1995 | |
85e6fe83 |
1996 | stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
a5f75d66 |
1997 | GvMULTI_on(stdingv); |
760ac839 |
1998 | IoIFP(GvIOp(stdingv)) = PerlIO_stdin(); |
adbc6bb1 |
1999 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 |
2000 | GvMULTI_on(tmpgv); |
a0d0e21e |
2001 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(stdingv)); |
79072805 |
2002 | |
85e6fe83 |
2003 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 |
2004 | GvMULTI_on(tmpgv); |
760ac839 |
2005 | IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout(); |
4633a7c4 |
2006 | setdefout(tmpgv); |
adbc6bb1 |
2007 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 |
2008 | GvMULTI_on(tmpgv); |
a0d0e21e |
2009 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(defoutgv)); |
79072805 |
2010 | |
a0d0e21e |
2011 | othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
a5f75d66 |
2012 | GvMULTI_on(othergv); |
760ac839 |
2013 | IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr(); |
adbc6bb1 |
2014 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 |
2015 | GvMULTI_on(tmpgv); |
a0d0e21e |
2016 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv)); |
79072805 |
2017 | |
2018 | statname = NEWSV(66,0); /* last filename we did stat on */ |
ab821d7f |
2019 | |
6e72f9df |
2020 | if (!osname) |
2021 | osname = savepv(OSNAME); |
79072805 |
2022 | } |
33b78306 |
2023 | |
79072805 |
2024 | static void |
2025 | init_postdump_symbols(argc,argv,env) |
2026 | register int argc; |
2027 | register char **argv; |
2028 | register char **env; |
33b78306 |
2029 | { |
79072805 |
2030 | char *s; |
2031 | SV *sv; |
2032 | GV* tmpgv; |
fe14fcc3 |
2033 | |
79072805 |
2034 | argc--,argv++; /* skip name of script */ |
2035 | if (doswitches) { |
2036 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
2037 | if (!argv[0][1]) |
2038 | break; |
2039 | if (argv[0][1] == '-') { |
2040 | argc--,argv++; |
2041 | break; |
2042 | } |
93a17b20 |
2043 | if (s = strchr(argv[0], '=')) { |
79072805 |
2044 | *s++ = '\0'; |
85e6fe83 |
2045 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 |
2046 | } |
2047 | else |
85e6fe83 |
2048 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 |
2049 | } |
79072805 |
2050 | } |
2051 | toptarget = NEWSV(0,0); |
2052 | sv_upgrade(toptarget, SVt_PVFM); |
2053 | sv_setpvn(toptarget, "", 0); |
748a9306 |
2054 | bodytarget = NEWSV(0,0); |
79072805 |
2055 | sv_upgrade(bodytarget, SVt_PVFM); |
2056 | sv_setpvn(bodytarget, "", 0); |
2057 | formtarget = bodytarget; |
2058 | |
79072805 |
2059 | tainted = 1; |
85e6fe83 |
2060 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
79072805 |
2061 | sv_setpv(GvSV(tmpgv),origfilename); |
2062 | magicname("0", "0", 1); |
2063 | } |
85e6fe83 |
2064 | if (tmpgv = gv_fetchpv("\024",TRUE, SVt_PV)) |
79072805 |
2065 | time(&basetime); |
85e6fe83 |
2066 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
79072805 |
2067 | sv_setpv(GvSV(tmpgv),origargv[0]); |
85e6fe83 |
2068 | if (argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { |
a5f75d66 |
2069 | GvMULTI_on(argvgv); |
79072805 |
2070 | (void)gv_AVadd(argvgv); |
2071 | av_clear(GvAVn(argvgv)); |
2072 | for (; argc > 0; argc--,argv++) { |
a0d0e21e |
2073 | av_push(GvAVn(argvgv),newSVpv(argv[0],0)); |
79072805 |
2074 | } |
2075 | } |
85e6fe83 |
2076 | if (envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 |
2077 | HV *hv; |
a5f75d66 |
2078 | GvMULTI_on(envgv); |
79072805 |
2079 | hv = GvHVn(envgv); |
463ee0b2 |
2080 | hv_clear(hv); |
a0d0e21e |
2081 | #ifndef VMS /* VMS doesn't have environ array */ |
4633a7c4 |
2082 | /* Note that if the supplied env parameter is actually a copy |
2083 | of the global environ then it may now point to free'd memory |
2084 | if the environment has been modified since. To avoid this |
2085 | problem we treat env==NULL as meaning 'use the default' |
2086 | */ |
2087 | if (!env) |
2088 | env = environ; |
8990e307 |
2089 | if (env != environ) { |
79072805 |
2090 | environ[0] = Nullch; |
8990e307 |
2091 | hv_magic(hv, envgv, 'E'); |
2092 | } |
79072805 |
2093 | for (; *env; env++) { |
93a17b20 |
2094 | if (!(s = strchr(*env,'='))) |
79072805 |
2095 | continue; |
2096 | *s++ = '\0'; |
2097 | sv = newSVpv(s--,0); |
85e6fe83 |
2098 | sv_magic(sv, sv, 'e', *env, s - *env); |
79072805 |
2099 | (void)hv_store(hv, *env, s - *env, sv, 0); |
2100 | *s = '='; |
fe14fcc3 |
2101 | } |
4550b24a |
2102 | #endif |
2103 | #ifdef DYNAMIC_ENV_FETCH |
2104 | HvNAME(hv) = savepv(ENV_HV_NAME); |
2105 | #endif |
f511e57f |
2106 | hv_magic(hv, envgv, 'E'); |
79072805 |
2107 | } |
79072805 |
2108 | tainted = 0; |
85e6fe83 |
2109 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
79072805 |
2110 | sv_setiv(GvSV(tmpgv),(I32)getpid()); |
2111 | |
33b78306 |
2112 | } |
34de22dd |
2113 | |
79072805 |
2114 | static void |
2115 | init_perllib() |
34de22dd |
2116 | { |
85e6fe83 |
2117 | char *s; |
2118 | if (!tainting) { |
2119 | s = getenv("PERL5LIB"); |
2120 | if (s) |
2121 | incpush(s); |
2122 | else |
2123 | incpush(getenv("PERLLIB")); |
2124 | } |
34de22dd |
2125 | |
4633a7c4 |
2126 | #ifdef APPLLIB_EXP |
2127 | incpush(APPLLIB_EXP); |
16d20bd9 |
2128 | #endif |
4633a7c4 |
2129 | |
fed7345c |
2130 | #ifdef ARCHLIB_EXP |
2131 | incpush(ARCHLIB_EXP); |
a0d0e21e |
2132 | #endif |
fed7345c |
2133 | #ifndef PRIVLIB_EXP |
2134 | #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" |
34de22dd |
2135 | #endif |
fed7345c |
2136 | incpush(PRIVLIB_EXP); |
4633a7c4 |
2137 | |
2138 | #ifdef SITEARCH_EXP |
2139 | incpush(SITEARCH_EXP); |
2140 | #endif |
2141 | #ifdef SITELIB_EXP |
2142 | incpush(SITELIB_EXP); |
2143 | #endif |
2144 | #ifdef OLDARCHLIB_EXP /* 5.00[01] compatibility */ |
2145 | incpush(OLDARCHLIB_EXP); |
2146 | #endif |
a0d0e21e |
2147 | |
4633a7c4 |
2148 | if (!tainting) |
2149 | incpush("."); |
34de22dd |
2150 | } |
93a17b20 |
2151 | |
2152 | void |
2153 | calllist(list) |
2154 | AV* list; |
2155 | { |
a5f75d66 |
2156 | Sigjmp_buf oldtop; |
a0d0e21e |
2157 | STRLEN len; |
2158 | line_t oldline = curcop->cop_line; |
93a17b20 |
2159 | |
a5f75d66 |
2160 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
93a17b20 |
2161 | |
8990e307 |
2162 | while (AvFILL(list) >= 0) { |
2163 | CV *cv = (CV*)av_shift(list); |
93a17b20 |
2164 | |
8990e307 |
2165 | SAVEFREESV(cv); |
a0d0e21e |
2166 | |
a5f75d66 |
2167 | switch (Sigsetjmp(top_env,1)) { |
748a9306 |
2168 | case 0: { |
4633a7c4 |
2169 | SV* atsv = GvSV(errgv); |
748a9306 |
2170 | PUSHMARK(stack_sp); |
2171 | perl_call_sv((SV*)cv, G_EVAL|G_DISCARD); |
2172 | (void)SvPV(atsv, len); |
2173 | if (len) { |
a5f75d66 |
2174 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
748a9306 |
2175 | curcop = &compiling; |
2176 | curcop->cop_line = oldline; |
2177 | if (list == beginav) |
2178 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); |
2179 | else |
2180 | sv_catpv(atsv, "END failed--cleanup aborted"); |
2181 | croak("%s", SvPVX(atsv)); |
2182 | } |
a0d0e21e |
2183 | } |
85e6fe83 |
2184 | break; |
2185 | case 1: |
748a9306 |
2186 | #ifdef VMS |
85e6fe83 |
2187 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 |
2188 | #else |
2189 | statusvalue = 1; |
2190 | #endif |
85e6fe83 |
2191 | /* FALL THROUGH */ |
2192 | case 2: |
2193 | /* my_exit() was called */ |
2194 | curstash = defstash; |
2195 | if (endav) |
2196 | calllist(endav); |
a0d0e21e |
2197 | FREETMPS; |
a5f75d66 |
2198 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e |
2199 | curcop = &compiling; |
2200 | curcop->cop_line = oldline; |
85e6fe83 |
2201 | if (statusvalue) { |
2202 | if (list == beginav) |
a0d0e21e |
2203 | croak("BEGIN failed--compilation aborted"); |
85e6fe83 |
2204 | else |
a0d0e21e |
2205 | croak("END failed--cleanup aborted"); |
85e6fe83 |
2206 | } |
85e6fe83 |
2207 | my_exit(statusvalue); |
2208 | /* NOTREACHED */ |
2209 | return; |
2210 | case 3: |
2211 | if (!restartop) { |
760ac839 |
2212 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e |
2213 | FREETMPS; |
85e6fe83 |
2214 | break; |
2215 | } |
a5f75d66 |
2216 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e |
2217 | curcop = &compiling; |
2218 | curcop->cop_line = oldline; |
a5f75d66 |
2219 | Siglongjmp(top_env, 3); |
8990e307 |
2220 | } |
93a17b20 |
2221 | } |
2222 | |
a5f75d66 |
2223 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
93a17b20 |
2224 | } |
2225 | |