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 |
124 | sprintf(patchlevel, "%7.5f", 5.0 + (PATCHLEVEL / 1000.0) |
125 | + (SUBVERSION / 100000.0)); |
126 | #else |
a0d0e21e |
127 | sprintf(patchlevel, "%5.3f", 5.0 + (PATCHLEVEL / 1000.0)); |
a5f75d66 |
128 | #endif |
79072805 |
129 | |
ab821d7f |
130 | #if defined(LOCAL_PATCH_COUNT) |
6e72f9df |
131 | localpatches = local_patches; /* For possible -v */ |
ab821d7f |
132 | #endif |
133 | |
760ac839 |
134 | PerlIO_init(); /* Hook to IO system */ |
135 | |
79072805 |
136 | fdpid = newAV(); /* for remembering popen pids by fd */ |
463ee0b2 |
137 | pidstatus = newHV();/* for remembering status of dead pids */ |
8990e307 |
138 | |
139 | init_stacks(); |
140 | ENTER; |
79072805 |
141 | } |
142 | |
143 | void |
748a9306 |
144 | perl_destruct(sv_interp) |
93a17b20 |
145 | register PerlInterpreter *sv_interp; |
79072805 |
146 | { |
748a9306 |
147 | int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
8990e307 |
148 | I32 last_sv_count; |
a0d0e21e |
149 | HV *hv; |
8990e307 |
150 | |
79072805 |
151 | if (!(curinterp = sv_interp)) |
152 | return; |
748a9306 |
153 | |
154 | destruct_level = perl_destruct_level; |
4633a7c4 |
155 | #ifdef DEBUGGING |
156 | { |
157 | char *s; |
158 | if (s = getenv("PERL_DESTRUCT_LEVEL")) |
159 | destruct_level = atoi(s); |
160 | } |
161 | #endif |
162 | |
8990e307 |
163 | LEAVE; |
a0d0e21e |
164 | FREETMPS; |
165 | |
6e72f9df |
166 | /* We must account for everything. First the syntax tree. */ |
167 | if (main_root) { |
168 | curpad = AvARRAY(comppad); |
169 | op_free(main_root); |
170 | main_root = 0; |
a0d0e21e |
171 | } |
172 | if (sv_objcount) { |
173 | /* |
174 | * Try to destruct global references. We do this first so that the |
175 | * destructors and destructees still exist. Some sv's might remain. |
176 | * Non-referenced objects are on their own. |
177 | */ |
178 | |
179 | dirty = TRUE; |
180 | sv_clean_objs(); |
8990e307 |
181 | } |
182 | |
a0d0e21e |
183 | if (destruct_level == 0){ |
8990e307 |
184 | |
a0d0e21e |
185 | DEBUG_P(debprofdump()); |
186 | |
187 | /* The exit() function will do everything that needs doing. */ |
188 | return; |
189 | } |
190 | |
191 | /* Prepare to destruct main symbol table. */ |
192 | hv = defstash; |
85e6fe83 |
193 | defstash = 0; |
a0d0e21e |
194 | SvREFCNT_dec(hv); |
195 | |
196 | FREETMPS; |
197 | if (destruct_level >= 2) { |
198 | if (scopestack_ix != 0) |
199 | warn("Unbalanced scopes: %d more ENTERs than LEAVEs\n", scopestack_ix); |
200 | if (savestack_ix != 0) |
201 | warn("Unbalanced saves: %d more saves than restores\n", savestack_ix); |
202 | if (tmps_floor != -1) |
203 | warn("Unbalanced tmps: %d more allocs than frees\n", tmps_floor + 1); |
204 | if (cxstack_ix != -1) |
205 | warn("Unbalanced context: %d more PUSHes than POPs\n", cxstack_ix + 1); |
206 | } |
8990e307 |
207 | |
208 | /* Now absolutely destruct everything, somehow or other, loops or no. */ |
8990e307 |
209 | last_sv_count = 0; |
6e72f9df |
210 | SvFLAGS(strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
8990e307 |
211 | while (sv_count != 0 && sv_count != last_sv_count) { |
212 | last_sv_count = sv_count; |
213 | sv_clean_all(); |
214 | } |
6e72f9df |
215 | SvFLAGS(strtab) &= ~SVTYPEMASK; |
216 | SvFLAGS(strtab) |= SVt_PVHV; |
217 | |
218 | /* Destruct the global string table. */ |
219 | { |
220 | /* Yell and reset the HeVAL() slots that are still holding refcounts, |
221 | * so that sv_free() won't fail on them. |
222 | */ |
223 | I32 riter; |
224 | I32 max; |
225 | HE *hent; |
226 | HE **array; |
227 | |
228 | riter = 0; |
229 | max = HvMAX(strtab); |
230 | array = HvARRAY(strtab); |
231 | hent = array[0]; |
232 | for (;;) { |
233 | if (hent) { |
234 | warn("Unbalanced string table refcount: (%d) for \"%s\"", |
235 | HeVAL(hent) - Nullsv, HeKEY(hent)); |
236 | HeVAL(hent) = Nullsv; |
237 | hent = HeNEXT(hent); |
238 | } |
239 | if (!hent) { |
240 | if (++riter > max) |
241 | break; |
242 | hent = array[riter]; |
243 | } |
244 | } |
245 | } |
246 | SvREFCNT_dec(strtab); |
247 | |
8990e307 |
248 | if (sv_count != 0) |
249 | warn("Scalars leaked: %d\n", sv_count); |
6e72f9df |
250 | |
4633a7c4 |
251 | sv_free_arenas(); |
a0d0e21e |
252 | |
6e72f9df |
253 | linestr = NULL; /* No SVs have survived, need to clean out */ |
254 | if (origfilename) |
255 | Safefree(origfilename); |
256 | nuke_stacks(); |
257 | hints = 0; /* Reset hints. Should hints be per-interpreter ? */ |
258 | |
a0d0e21e |
259 | DEBUG_P(debprofdump()); |
79072805 |
260 | } |
261 | |
262 | void |
263 | perl_free(sv_interp) |
93a17b20 |
264 | PerlInterpreter *sv_interp; |
79072805 |
265 | { |
266 | if (!(curinterp = sv_interp)) |
267 | return; |
268 | Safefree(sv_interp); |
269 | } |
ecfc5424 |
270 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) |
a0d0e21e |
271 | char *getenv _((char *)); /* Usually in <stdlib.h> */ |
272 | #endif |
79072805 |
273 | |
274 | int |
a0d0e21e |
275 | perl_parse(sv_interp, xsinit, argc, argv, env) |
93a17b20 |
276 | PerlInterpreter *sv_interp; |
a0d0e21e |
277 | void (*xsinit)_((void)); |
278 | int argc; |
279 | char **argv; |
79072805 |
280 | char **env; |
8d063cd8 |
281 | { |
79072805 |
282 | register SV *sv; |
8d063cd8 |
283 | register char *s; |
1a30305b |
284 | char *scriptname = NULL; |
a0d0e21e |
285 | VOL bool dosearch = FALSE; |
13281fa4 |
286 | char *validarg = ""; |
748a9306 |
287 | AV* comppadlist; |
8d063cd8 |
288 | |
a687059c |
289 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
290 | #ifdef IAMSUID |
291 | #undef IAMSUID |
463ee0b2 |
292 | croak("suidperl is no longer needed since the kernel can now execute\n\ |
a687059c |
293 | setuid perl scripts securely.\n"); |
294 | #endif |
295 | #endif |
296 | |
79072805 |
297 | if (!(curinterp = sv_interp)) |
298 | return 255; |
299 | |
6e72f9df |
300 | #if defined(NeXT) && defined(__DYNAMIC__) |
301 | _dyld_lookup_and_bind |
302 | ("__environ", (unsigned long *) &environ_pointer, NULL); |
303 | #endif /* environ */ |
304 | |
ac58e20f |
305 | origargv = argv; |
306 | origargc = argc; |
a0d0e21e |
307 | #ifndef VMS /* VMS doesn't have environ array */ |
fe14fcc3 |
308 | origenviron = environ; |
a0d0e21e |
309 | #endif |
ab821d7f |
310 | e_tmpname = Nullch; |
a0d0e21e |
311 | |
312 | if (do_undump) { |
313 | |
314 | /* Come here if running an undumped a.out. */ |
315 | |
316 | origfilename = savepv(argv[0]); |
317 | do_undump = FALSE; |
318 | cxstack_ix = -1; /* start label stack again */ |
748a9306 |
319 | init_ids(); |
a0d0e21e |
320 | init_postdump_symbols(argc,argv,env); |
321 | return 0; |
322 | } |
323 | |
324 | if (main_root) |
325 | op_free(main_root); |
326 | main_root = 0; |
79072805 |
327 | |
a5f75d66 |
328 | switch (Sigsetjmp(top_env,1)) { |
79072805 |
329 | case 1: |
748a9306 |
330 | #ifdef VMS |
79072805 |
331 | statusvalue = 255; |
748a9306 |
332 | #else |
333 | statusvalue = 1; |
334 | #endif |
79072805 |
335 | case 2: |
8990e307 |
336 | curstash = defstash; |
337 | if (endav) |
338 | calllist(endav); |
79072805 |
339 | return(statusvalue); /* my_exit() was called */ |
340 | case 3: |
760ac839 |
341 | PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); |
8990e307 |
342 | return 1; |
79072805 |
343 | } |
344 | |
79072805 |
345 | sv_setpvn(linestr,"",0); |
346 | sv = newSVpv("",0); /* first used for -I flags */ |
8990e307 |
347 | SAVEFREESV(sv); |
79072805 |
348 | init_main_stash(); |
33b78306 |
349 | for (argc--,argv++; argc > 0; argc--,argv++) { |
8d063cd8 |
350 | if (argv[0][0] != '-' || !argv[0][1]) |
351 | break; |
13281fa4 |
352 | #ifdef DOSUID |
353 | if (*validarg) |
354 | validarg = " PHOOEY "; |
355 | else |
356 | validarg = argv[0]; |
357 | #endif |
358 | s = argv[0]+1; |
8d063cd8 |
359 | reswitch: |
13281fa4 |
360 | switch (*s) { |
27e2fb84 |
361 | case '0': |
2304df62 |
362 | case 'F': |
378cc40b |
363 | case 'a': |
33b78306 |
364 | case 'c': |
a687059c |
365 | case 'd': |
8d063cd8 |
366 | case 'D': |
4633a7c4 |
367 | case 'h': |
33b78306 |
368 | case 'i': |
fe14fcc3 |
369 | case 'l': |
1a30305b |
370 | case 'M': |
371 | case 'm': |
33b78306 |
372 | case 'n': |
373 | case 'p': |
79072805 |
374 | case 's': |
463ee0b2 |
375 | case 'T': |
33b78306 |
376 | case 'u': |
377 | case 'U': |
378 | case 'v': |
379 | case 'w': |
380 | if (s = moreswitches(s)) |
381 | goto reswitch; |
8d063cd8 |
382 | break; |
33b78306 |
383 | |
8d063cd8 |
384 | case 'e': |
a687059c |
385 | if (euid != uid || egid != gid) |
463ee0b2 |
386 | croak("No -e allowed in setuid scripts"); |
8d063cd8 |
387 | if (!e_fp) { |
a0d0e21e |
388 | e_tmpname = savepv(TMPPATH); |
a687059c |
389 | (void)mktemp(e_tmpname); |
83025b21 |
390 | if (!*e_tmpname) |
463ee0b2 |
391 | croak("Can't mktemp()"); |
760ac839 |
392 | e_fp = PerlIO_open(e_tmpname,"w"); |
33b78306 |
393 | if (!e_fp) |
463ee0b2 |
394 | croak("Cannot open temporary file"); |
8d063cd8 |
395 | } |
33b78306 |
396 | if (argv[1]) { |
760ac839 |
397 | PerlIO_puts(e_fp,argv[1]); |
33b78306 |
398 | argc--,argv++; |
399 | } |
760ac839 |
400 | (void)PerlIO_putc(e_fp,'\n'); |
8d063cd8 |
401 | break; |
402 | case 'I': |
463ee0b2 |
403 | taint_not("-I"); |
79072805 |
404 | sv_catpv(sv,"-"); |
405 | sv_catpv(sv,s); |
406 | sv_catpv(sv," "); |
a687059c |
407 | if (*++s) { |
a0d0e21e |
408 | av_push(GvAVn(incgv),newSVpv(s,0)); |
378cc40b |
409 | } |
33b78306 |
410 | else if (argv[1]) { |
a0d0e21e |
411 | av_push(GvAVn(incgv),newSVpv(argv[1],0)); |
79072805 |
412 | sv_catpv(sv,argv[1]); |
8d063cd8 |
413 | argc--,argv++; |
79072805 |
414 | sv_catpv(sv," "); |
8d063cd8 |
415 | } |
416 | break; |
8d063cd8 |
417 | case 'P': |
463ee0b2 |
418 | taint_not("-P"); |
8d063cd8 |
419 | preprocess = TRUE; |
13281fa4 |
420 | s++; |
8d063cd8 |
421 | goto reswitch; |
378cc40b |
422 | case 'S': |
463ee0b2 |
423 | taint_not("-S"); |
378cc40b |
424 | dosearch = TRUE; |
13281fa4 |
425 | s++; |
378cc40b |
426 | goto reswitch; |
1a30305b |
427 | case 'V': |
428 | if (!preambleav) |
429 | preambleav = newAV(); |
430 | av_push(preambleav, newSVpv("use Config qw(myconfig config_vars)",0)); |
431 | if (*++s != ':') { |
6e72f9df |
432 | Sv = newSVpv("print myconfig();",0); |
433 | #ifdef VMS |
434 | sv_catpv(Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\","); |
435 | #else |
436 | sv_catpv(Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\","); |
437 | #endif |
438 | #if defined(DEBUGGING) || defined(NOEMBED) || defined(MULTIPLICITY) |
439 | strcpy(buf,"\" Compile-time options:"); |
440 | # ifdef DEBUGGING |
441 | strcat(buf," DEBUGGING"); |
442 | # endif |
443 | # ifdef NOEMBED |
444 | strcat(buf," NOEMBED"); |
445 | # endif |
446 | # ifdef MULTIPLICITY |
447 | strcat(buf," MULTIPLICITY"); |
448 | # endif |
449 | strcat(buf,"\\n\","); |
450 | sv_catpv(Sv,buf); |
451 | #endif |
452 | #if defined(LOCAL_PATCH_COUNT) |
453 | if (LOCAL_PATCH_COUNT > 0) |
454 | { int i; |
455 | sv_catpv(Sv,"print \" Locally applied patches:\\n\","); |
456 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { |
457 | if (localpatches[i]) { |
458 | sprintf(buf,"\" \\t%s\\n\",",localpatches[i]); |
459 | sv_catpv(Sv,buf); |
460 | } |
461 | } |
462 | } |
463 | #endif |
464 | sprintf(buf,"\" Built under %s\\n\",",OSNAME); |
465 | sv_catpv(Sv,buf); |
466 | #ifdef __DATE__ |
467 | # ifdef __TIME__ |
468 | sprintf(buf,"\" Compiled at %s %s\\n\"",__DATE__,__TIME__); |
469 | # else |
470 | sprintf(buf,"\" Compiled on %s\\n\"",__DATE__); |
471 | # endif |
472 | sv_catpv(Sv,buf); |
473 | #endif |
474 | sv_catpv(Sv,"; $\"=\"\\n \"; print \" \\@INC:\\n @INC\\n\""); |
1a30305b |
475 | } |
476 | else { |
477 | Sv = newSVpv("config_vars(qw(",0); |
478 | sv_catpv(Sv, ++s); |
479 | sv_catpv(Sv, "))"); |
480 | s += strlen(s); |
481 | } |
482 | av_push(preambleav, Sv); |
c07a80fd |
483 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
1a30305b |
484 | goto reswitch; |
33b78306 |
485 | case 'x': |
486 | doextract = TRUE; |
13281fa4 |
487 | s++; |
33b78306 |
488 | if (*s) |
a0d0e21e |
489 | cddir = savepv(s); |
33b78306 |
490 | break; |
8d063cd8 |
491 | case '-': |
492 | argc--,argv++; |
493 | goto switch_end; |
494 | case 0: |
495 | break; |
496 | default: |
463ee0b2 |
497 | croak("Unrecognized switch: -%s",s); |
8d063cd8 |
498 | } |
499 | } |
500 | switch_end: |
1a30305b |
501 | if (!scriptname) |
502 | scriptname = argv[0]; |
8d063cd8 |
503 | if (e_fp) { |
760ac839 |
504 | if (PerlIO_flush(e_fp) || PerlIO_error(e_fp) || PerlIO_close(e_fp)) |
2304df62 |
505 | croak("Can't write to temp file for -e: %s", Strerror(errno)); |
ab821d7f |
506 | e_fp = Nullfp; |
8d063cd8 |
507 | argc++,argv--; |
45d8adaa |
508 | scriptname = e_tmpname; |
8d063cd8 |
509 | } |
79072805 |
510 | else if (scriptname == Nullch) { |
511 | #ifdef MSDOS |
760ac839 |
512 | if ( isatty(PerlIO_fileno(PerlIO_stdin())) ) |
79072805 |
513 | moreswitches("v"); |
fe14fcc3 |
514 | #endif |
79072805 |
515 | scriptname = "-"; |
516 | } |
fe14fcc3 |
517 | |
79072805 |
518 | init_perllib(); |
8d063cd8 |
519 | |
79072805 |
520 | open_script(scriptname,dosearch,sv); |
8d063cd8 |
521 | |
96436eeb |
522 | validate_suid(validarg, scriptname); |
378cc40b |
523 | |
79072805 |
524 | if (doextract) |
525 | find_beginning(); |
526 | |
748a9306 |
527 | compcv = (CV*)NEWSV(1104,0); |
528 | sv_upgrade((SV *)compcv, SVt_PVCV); |
529 | |
6e72f9df |
530 | comppad = newAV(); |
79072805 |
531 | av_push(comppad, Nullsv); |
532 | curpad = AvARRAY(comppad); |
6e72f9df |
533 | comppad_name = newAV(); |
8990e307 |
534 | comppad_name_fill = 0; |
535 | min_intro_pending = 0; |
79072805 |
536 | padix = 0; |
537 | |
748a9306 |
538 | comppadlist = newAV(); |
539 | AvREAL_off(comppadlist); |
8e07c86e |
540 | av_store(comppadlist, 0, (SV*)comppad_name); |
541 | av_store(comppadlist, 1, (SV*)comppad); |
748a9306 |
542 | CvPADLIST(compcv) = comppadlist; |
543 | |
6e72f9df |
544 | boot_core_UNIVERSAL(); |
a0d0e21e |
545 | if (xsinit) |
546 | (*xsinit)(); /* in case linked C routines want magical variables */ |
748a9306 |
547 | #ifdef VMS |
548 | init_os_extras(); |
549 | #endif |
93a17b20 |
550 | |
93a17b20 |
551 | init_predump_symbols(); |
8990e307 |
552 | if (!do_undump) |
553 | init_postdump_symbols(argc,argv,env); |
93a17b20 |
554 | |
79072805 |
555 | init_lexer(); |
556 | |
557 | /* now parse the script */ |
558 | |
559 | error_count = 0; |
560 | if (yyparse() || error_count) { |
561 | if (minus_c) |
463ee0b2 |
562 | croak("%s had compilation errors.\n", origfilename); |
79072805 |
563 | else { |
463ee0b2 |
564 | croak("Execution of %s aborted due to compilation errors.\n", |
79072805 |
565 | origfilename); |
378cc40b |
566 | } |
79072805 |
567 | } |
568 | curcop->cop_line = 0; |
569 | curstash = defstash; |
570 | preprocess = FALSE; |
ab821d7f |
571 | if (e_tmpname) { |
79072805 |
572 | (void)UNLINK(e_tmpname); |
ab821d7f |
573 | Safefree(e_tmpname); |
574 | e_tmpname = Nullch; |
378cc40b |
575 | } |
a687059c |
576 | |
93a17b20 |
577 | /* now that script is parsed, we can modify record separator */ |
c07a80fd |
578 | SvREFCNT_dec(rs); |
579 | rs = SvREFCNT_inc(nrs); |
580 | sv_setsv(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), rs); |
45d8adaa |
581 | |
79072805 |
582 | if (do_undump) |
583 | my_unexec(); |
584 | |
8990e307 |
585 | if (dowarn) |
586 | gv_check(defstash); |
587 | |
a0d0e21e |
588 | LEAVE; |
589 | FREETMPS; |
c07a80fd |
590 | |
591 | #ifdef DEBUGGING_MSTATS |
592 | if ((s=getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) |
593 | dump_mstats("after compilation:"); |
594 | #endif |
595 | |
a0d0e21e |
596 | ENTER; |
597 | restartop = 0; |
79072805 |
598 | return 0; |
599 | } |
600 | |
601 | int |
602 | perl_run(sv_interp) |
93a17b20 |
603 | PerlInterpreter *sv_interp; |
79072805 |
604 | { |
605 | if (!(curinterp = sv_interp)) |
606 | return 255; |
a5f75d66 |
607 | switch (Sigsetjmp(top_env,1)) { |
79072805 |
608 | case 1: |
609 | cxstack_ix = -1; /* start context stack again */ |
610 | break; |
611 | case 2: |
612 | curstash = defstash; |
93a17b20 |
613 | if (endav) |
614 | calllist(endav); |
a0d0e21e |
615 | FREETMPS; |
c07a80fd |
616 | #ifdef DEBUGGING_MSTATS |
617 | if (getenv("PERL_DEBUG_MSTATS")) |
618 | dump_mstats("after execution: "); |
619 | #endif |
93a17b20 |
620 | return(statusvalue); /* my_exit() was called */ |
79072805 |
621 | case 3: |
622 | if (!restartop) { |
760ac839 |
623 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e |
624 | FREETMPS; |
8990e307 |
625 | return 1; |
83025b21 |
626 | } |
6e72f9df |
627 | if (curstack != mainstack) { |
79072805 |
628 | dSP; |
6e72f9df |
629 | SWITCHSTACK(curstack, mainstack); |
79072805 |
630 | } |
631 | break; |
8d063cd8 |
632 | } |
79072805 |
633 | |
760ac839 |
634 | DEBUG_r(PerlIO_printf(PerlIO_stderr(), "%s $` $& $' support.\n", |
6e72f9df |
635 | sawampersand ? "Enabling" : "Omitting")); |
636 | |
79072805 |
637 | if (!restartop) { |
638 | DEBUG_x(dump_all()); |
760ac839 |
639 | DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); |
79072805 |
640 | |
641 | if (minus_c) { |
760ac839 |
642 | PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", origfilename); |
79072805 |
643 | my_exit(0); |
644 | } |
a0d0e21e |
645 | if (perldb && DBsingle) |
646 | sv_setiv(DBsingle, 1); |
45d8adaa |
647 | } |
79072805 |
648 | |
649 | /* do it */ |
650 | |
651 | if (restartop) { |
652 | op = restartop; |
653 | restartop = 0; |
ab821d7f |
654 | runops(); |
79072805 |
655 | } |
656 | else if (main_start) { |
657 | op = main_start; |
ab821d7f |
658 | runops(); |
79072805 |
659 | } |
79072805 |
660 | |
661 | my_exit(0); |
a0d0e21e |
662 | return 0; |
79072805 |
663 | } |
664 | |
665 | void |
666 | my_exit(status) |
748a9306 |
667 | U32 status; |
79072805 |
668 | { |
a0d0e21e |
669 | register CONTEXT *cx; |
670 | I32 gimme; |
671 | SV **newsp; |
672 | |
748a9306 |
673 | statusvalue = FIXSTATUS(status); |
a0d0e21e |
674 | if (cxstack_ix >= 0) { |
675 | if (cxstack_ix > 0) |
676 | dounwind(0); |
677 | POPBLOCK(cx,curpm); |
678 | LEAVE; |
679 | } |
a5f75d66 |
680 | Siglongjmp(top_env, 2); |
79072805 |
681 | } |
682 | |
a0d0e21e |
683 | SV* |
684 | perl_get_sv(name, create) |
685 | char* name; |
686 | I32 create; |
687 | { |
688 | GV* gv = gv_fetchpv(name, create, SVt_PV); |
689 | if (gv) |
690 | return GvSV(gv); |
691 | return Nullsv; |
692 | } |
693 | |
694 | AV* |
695 | perl_get_av(name, create) |
696 | char* name; |
697 | I32 create; |
698 | { |
699 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); |
700 | if (create) |
701 | return GvAVn(gv); |
702 | if (gv) |
703 | return GvAV(gv); |
704 | return Nullav; |
705 | } |
706 | |
707 | HV* |
708 | perl_get_hv(name, create) |
709 | char* name; |
710 | I32 create; |
711 | { |
712 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); |
713 | if (create) |
714 | return GvHVn(gv); |
715 | if (gv) |
716 | return GvHV(gv); |
717 | return Nullhv; |
718 | } |
719 | |
720 | CV* |
721 | perl_get_cv(name, create) |
722 | char* name; |
723 | I32 create; |
724 | { |
725 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); |
726 | if (create && !GvCV(gv)) |
727 | return newSUB(start_subparse(), |
728 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
4633a7c4 |
729 | Nullop, |
a0d0e21e |
730 | Nullop); |
731 | if (gv) |
732 | return GvCV(gv); |
733 | return Nullcv; |
734 | } |
735 | |
79072805 |
736 | /* Be sure to refetch the stack pointer after calling these routines. */ |
737 | |
a0d0e21e |
738 | I32 |
739 | perl_call_argv(subname, flags, argv) |
8990e307 |
740 | char *subname; |
a0d0e21e |
741 | I32 flags; /* See G_* flags in cop.h */ |
742 | register char **argv; /* null terminated arg list */ |
8990e307 |
743 | { |
a0d0e21e |
744 | dSP; |
8990e307 |
745 | |
a0d0e21e |
746 | PUSHMARK(sp); |
747 | if (argv) { |
8990e307 |
748 | while (*argv) { |
a0d0e21e |
749 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 |
750 | argv++; |
751 | } |
a0d0e21e |
752 | PUTBACK; |
8990e307 |
753 | } |
a0d0e21e |
754 | return perl_call_pv(subname, flags); |
8990e307 |
755 | } |
756 | |
a0d0e21e |
757 | I32 |
758 | perl_call_pv(subname, flags) |
759 | char *subname; /* name of the subroutine */ |
760 | I32 flags; /* See G_* flags in cop.h */ |
761 | { |
762 | return perl_call_sv((SV*)perl_get_cv(subname, TRUE), flags); |
763 | } |
764 | |
765 | I32 |
766 | perl_call_method(methname, flags) |
767 | char *methname; /* name of the subroutine */ |
768 | I32 flags; /* See G_* flags in cop.h */ |
769 | { |
770 | dSP; |
771 | OP myop; |
772 | if (!op) |
773 | op = &myop; |
774 | XPUSHs(sv_2mortal(newSVpv(methname,0))); |
775 | PUTBACK; |
776 | pp_method(); |
777 | return perl_call_sv(*stack_sp--, flags); |
778 | } |
779 | |
780 | /* May be called with any of a CV, a GV, or an SV containing the name. */ |
781 | I32 |
782 | perl_call_sv(sv, flags) |
783 | SV* sv; |
784 | I32 flags; /* See G_* flags in cop.h */ |
785 | { |
786 | LOGOP myop; /* fake syntax tree node */ |
787 | SV** sp = stack_sp; |
788 | I32 oldmark = TOPMARK; |
789 | I32 retval; |
a5f75d66 |
790 | Sigjmp_buf oldtop; |
a0d0e21e |
791 | I32 oldscope; |
6e72f9df |
792 | static CV *DBcv; |
a0d0e21e |
793 | |
794 | if (flags & G_DISCARD) { |
795 | ENTER; |
796 | SAVETMPS; |
797 | } |
798 | |
799 | SAVESPTR(op); |
800 | op = (OP*)&myop; |
801 | Zero(op, 1, LOGOP); |
802 | EXTEND(stack_sp, 1); |
803 | *++stack_sp = sv; |
804 | oldscope = scopestack_ix; |
805 | |
806 | if (!(flags & G_NOARGS)) |
807 | myop.op_flags = OPf_STACKED; |
808 | myop.op_next = Nullop; |
809 | myop.op_flags |= OPf_KNOW; |
810 | if (flags & G_ARRAY) |
811 | myop.op_flags |= OPf_LIST; |
812 | |
6e72f9df |
813 | if (perldb && curstash != debstash |
814 | && (DBcv || (DBcv = GvCV(DBsub)))) /* to handle first BEGIN of -d */ |
815 | op->op_private |= OPpENTERSUB_DB; |
816 | |
a0d0e21e |
817 | if (flags & G_EVAL) { |
a5f75d66 |
818 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
a0d0e21e |
819 | |
820 | cLOGOP->op_other = op; |
821 | markstack_ptr--; |
4633a7c4 |
822 | /* we're trying to emulate pp_entertry() here */ |
823 | { |
824 | register CONTEXT *cx; |
825 | I32 gimme = GIMME; |
826 | |
827 | ENTER; |
828 | SAVETMPS; |
829 | |
830 | push_return(op->op_next); |
831 | PUSHBLOCK(cx, CXt_EVAL, stack_sp); |
832 | PUSHEVAL(cx, 0, 0); |
833 | eval_root = op; /* Only needed so that goto works right. */ |
834 | |
835 | in_eval = 1; |
836 | if (flags & G_KEEPERR) |
837 | in_eval |= 4; |
838 | else |
839 | sv_setpv(GvSV(errgv),""); |
840 | } |
a0d0e21e |
841 | markstack_ptr++; |
842 | |
843 | restart: |
a5f75d66 |
844 | switch (Sigsetjmp(top_env,1)) { |
a0d0e21e |
845 | case 0: |
846 | break; |
847 | case 1: |
748a9306 |
848 | #ifdef VMS |
a0d0e21e |
849 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 |
850 | #else |
851 | statusvalue = 1; |
852 | #endif |
a0d0e21e |
853 | /* FALL THROUGH */ |
854 | case 2: |
855 | /* my_exit() was called */ |
856 | curstash = defstash; |
857 | FREETMPS; |
a5f75d66 |
858 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e |
859 | if (statusvalue) |
860 | croak("Callback called exit"); |
861 | my_exit(statusvalue); |
862 | /* NOTREACHED */ |
863 | case 3: |
864 | if (restartop) { |
865 | op = restartop; |
866 | restartop = 0; |
867 | goto restart; |
868 | } |
869 | stack_sp = stack_base + oldmark; |
870 | if (flags & G_ARRAY) |
871 | retval = 0; |
872 | else { |
873 | retval = 1; |
874 | *++stack_sp = &sv_undef; |
875 | } |
876 | goto cleanup; |
877 | } |
878 | } |
879 | |
880 | if (op == (OP*)&myop) |
881 | op = pp_entersub(); |
882 | if (op) |
ab821d7f |
883 | runops(); |
a0d0e21e |
884 | retval = stack_sp - (stack_base + oldmark); |
4633a7c4 |
885 | if ((flags & G_EVAL) && !(flags & G_KEEPERR)) |
886 | sv_setpv(GvSV(errgv),""); |
a0d0e21e |
887 | |
888 | cleanup: |
889 | if (flags & G_EVAL) { |
890 | if (scopestack_ix > oldscope) { |
a0a2876f |
891 | SV **newsp; |
892 | PMOP *newpm; |
893 | I32 gimme; |
894 | register CONTEXT *cx; |
895 | I32 optype; |
896 | |
897 | POPBLOCK(cx,newpm); |
898 | POPEVAL(cx); |
899 | pop_return(); |
900 | curpm = newpm; |
901 | LEAVE; |
a0d0e21e |
902 | } |
a5f75d66 |
903 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e |
904 | } |
905 | if (flags & G_DISCARD) { |
906 | stack_sp = stack_base + oldmark; |
907 | retval = 0; |
908 | FREETMPS; |
909 | LEAVE; |
910 | } |
911 | return retval; |
912 | } |
913 | |
6e72f9df |
914 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 |
915 | |
a0d0e21e |
916 | I32 |
4633a7c4 |
917 | perl_eval_sv(sv, flags) |
8990e307 |
918 | SV* sv; |
4633a7c4 |
919 | I32 flags; /* See G_* flags in cop.h */ |
a0d0e21e |
920 | { |
921 | UNOP myop; /* fake syntax tree node */ |
4633a7c4 |
922 | SV** sp = stack_sp; |
923 | I32 oldmark = sp - stack_base; |
924 | I32 retval; |
a5f75d66 |
925 | Sigjmp_buf oldtop; |
4633a7c4 |
926 | I32 oldscope; |
79072805 |
927 | |
4633a7c4 |
928 | if (flags & G_DISCARD) { |
929 | ENTER; |
930 | SAVETMPS; |
931 | } |
932 | |
79072805 |
933 | SAVESPTR(op); |
79072805 |
934 | op = (OP*)&myop; |
a0d0e21e |
935 | Zero(op, 1, UNOP); |
4633a7c4 |
936 | EXTEND(stack_sp, 1); |
937 | *++stack_sp = sv; |
938 | oldscope = scopestack_ix; |
79072805 |
939 | |
4633a7c4 |
940 | if (!(flags & G_NOARGS)) |
941 | myop.op_flags = OPf_STACKED; |
79072805 |
942 | myop.op_next = Nullop; |
6e72f9df |
943 | myop.op_type = OP_ENTEREVAL; |
4633a7c4 |
944 | myop.op_flags |= OPf_KNOW; |
6e72f9df |
945 | if (flags & G_KEEPERR) |
946 | myop.op_flags |= OPf_SPECIAL; |
4633a7c4 |
947 | if (flags & G_ARRAY) |
6e72f9df |
948 | myop.op_flags |= OPf_LIST; |
79072805 |
949 | |
a5f75d66 |
950 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
4633a7c4 |
951 | |
952 | restart: |
a5f75d66 |
953 | switch (Sigsetjmp(top_env,1)) { |
4633a7c4 |
954 | case 0: |
955 | break; |
956 | case 1: |
957 | #ifdef VMS |
958 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
959 | #else |
960 | statusvalue = 1; |
961 | #endif |
962 | /* FALL THROUGH */ |
963 | case 2: |
964 | /* my_exit() was called */ |
965 | curstash = defstash; |
966 | FREETMPS; |
a5f75d66 |
967 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
4633a7c4 |
968 | if (statusvalue) |
969 | croak("Callback called exit"); |
970 | my_exit(statusvalue); |
971 | /* NOTREACHED */ |
972 | case 3: |
973 | if (restartop) { |
974 | op = restartop; |
975 | restartop = 0; |
976 | goto restart; |
977 | } |
978 | stack_sp = stack_base + oldmark; |
979 | if (flags & G_ARRAY) |
980 | retval = 0; |
981 | else { |
982 | retval = 1; |
983 | *++stack_sp = &sv_undef; |
984 | } |
985 | goto cleanup; |
986 | } |
987 | |
988 | if (op == (OP*)&myop) |
989 | op = pp_entereval(); |
990 | if (op) |
ab821d7f |
991 | runops(); |
4633a7c4 |
992 | retval = stack_sp - (stack_base + oldmark); |
6e72f9df |
993 | if (!(flags & G_KEEPERR)) |
4633a7c4 |
994 | sv_setpv(GvSV(errgv),""); |
995 | |
996 | cleanup: |
a5f75d66 |
997 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
4633a7c4 |
998 | if (flags & G_DISCARD) { |
999 | stack_sp = stack_base + oldmark; |
1000 | retval = 0; |
1001 | FREETMPS; |
1002 | LEAVE; |
1003 | } |
1004 | return retval; |
1005 | } |
1006 | |
1007 | /* Require a module. */ |
1008 | |
1009 | void |
1010 | perl_require_pv(pv) |
1011 | char* pv; |
1012 | { |
1013 | SV* sv = sv_newmortal(); |
1014 | sv_setpv(sv, "require '"); |
1015 | sv_catpv(sv, pv); |
1016 | sv_catpv(sv, "'"); |
1017 | perl_eval_sv(sv, G_DISCARD); |
79072805 |
1018 | } |
1019 | |
79072805 |
1020 | void |
79072805 |
1021 | magicname(sym,name,namlen) |
1022 | char *sym; |
1023 | char *name; |
1024 | I32 namlen; |
1025 | { |
1026 | register GV *gv; |
1027 | |
85e6fe83 |
1028 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 |
1029 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
1030 | } |
1031 | |
748a9306 |
1032 | #if defined(DOSISH) |
1033 | # define PERLLIB_SEP ';' |
79072805 |
1034 | #else |
232e078e |
1035 | # if defined(VMS) |
1036 | # define PERLLIB_SEP '|' |
1037 | # else |
748a9306 |
1038 | # define PERLLIB_SEP ':' |
232e078e |
1039 | # endif |
79072805 |
1040 | #endif |
760ac839 |
1041 | #ifndef PERLLIB_MANGLE |
1042 | # define PERLLIB_MANGLE(s,n) (s) |
1043 | #endif |
79072805 |
1044 | |
1045 | static void |
1046 | incpush(p) |
1047 | char *p; |
1048 | { |
1049 | char *s; |
1050 | |
1051 | if (!p) |
1052 | return; |
1053 | |
1054 | /* Break at all separators */ |
1055 | while (*p) { |
1056 | /* First, skip any consecutive separators */ |
1057 | while ( *p == PERLLIB_SEP ) { |
1058 | /* Uncomment the next line for PATH semantics */ |
a0d0e21e |
1059 | /* av_push(GvAVn(incgv), newSVpv(".", 1)); */ |
79072805 |
1060 | p++; |
1061 | } |
93a17b20 |
1062 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { |
760ac839 |
1063 | av_push(GvAVn(incgv), newSVpv(PERLLIB_MANGLE(p, (STRLEN)(s - p)), |
1064 | (STRLEN)(s - p))); |
79072805 |
1065 | p = s + 1; |
1066 | } else { |
760ac839 |
1067 | av_push(GvAVn(incgv), newSVpv(PERLLIB_MANGLE(p, 0), 0)); |
79072805 |
1068 | break; |
1069 | } |
1070 | } |
1071 | } |
1072 | |
ab821d7f |
1073 | static void |
1a30305b |
1074 | usage(name) /* XXX move this out into a module ? */ |
4633a7c4 |
1075 | char *name; |
1076 | { |
ab821d7f |
1077 | /* This message really ought to be max 23 lines. |
1078 | * Removed -h because the user already knows that opton. Others? */ |
1079 | printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name); |
4633a7c4 |
1080 | printf("\n -0[octal] specify record separator (\\0, if no argument)"); |
ab821d7f |
1081 | printf("\n -a autosplit mode with -n or -p (splits $_ into @F)"); |
4633a7c4 |
1082 | printf("\n -c check syntax only (runs BEGIN and END blocks)"); |
1a30305b |
1083 | printf("\n -d[:debugger] run scripts under debugger"); |
4633a7c4 |
1084 | printf("\n -D[number/list] set debugging flags (argument is a bit mask or flags)"); |
ab821d7f |
1085 | printf("\n -e 'command' one line of script. Several -e's allowed. Omit [programfile]."); |
1086 | printf("\n -F/pattern/ split() pattern for autosplit (-a). The //'s are optional."); |
4633a7c4 |
1087 | printf("\n -i[extension] edit <> files in place (make backup if extension supplied)"); |
ab821d7f |
1088 | printf("\n -Idirectory specify @INC/#include directory (may be used more then once)"); |
4633a7c4 |
1089 | printf("\n -l[octal] enable line ending processing, specifies line teminator"); |
ab821d7f |
1090 | printf("\n -[mM][-]module.. executes `use/no module...' before executing your script."); |
4633a7c4 |
1091 | printf("\n -n assume 'while (<>) { ... }' loop arround your script"); |
1092 | printf("\n -p assume loop like -n but print line also like sed"); |
1093 | printf("\n -P run script through C preprocessor before compilation"); |
4633a7c4 |
1094 | printf("\n -s enable some switch parsing for switches after script name"); |
1095 | printf("\n -S look for the script using PATH environment variable"); |
1096 | printf("\n -T turn on tainting checks"); |
1097 | printf("\n -u dump core after parsing script"); |
1098 | printf("\n -U allow unsafe operations"); |
1099 | printf("\n -v print version number and patchlevel of perl"); |
1a30305b |
1100 | printf("\n -V[:variable] print perl configuration information"); |
ab821d7f |
1101 | printf("\n -w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT."); |
4633a7c4 |
1102 | printf("\n -x[directory] strip off text before #!perl line and perhaps cd to directory\n"); |
1103 | } |
1104 | |
79072805 |
1105 | /* This routine handles any switches that can be given during run */ |
1106 | |
1107 | char * |
1108 | moreswitches(s) |
1109 | char *s; |
1110 | { |
1111 | I32 numlen; |
c07a80fd |
1112 | U32 rschar; |
79072805 |
1113 | |
1114 | switch (*s) { |
1115 | case '0': |
c07a80fd |
1116 | rschar = scan_oct(s, 4, &numlen); |
1117 | SvREFCNT_dec(nrs); |
1118 | if (rschar & ~((U8)~0)) |
1119 | nrs = &sv_undef; |
1120 | else if (!rschar && numlen >= 2) |
1121 | nrs = newSVpv("", 0); |
1122 | else { |
1123 | char ch = rschar; |
1124 | nrs = newSVpv(&ch, 1); |
79072805 |
1125 | } |
1126 | return s + numlen; |
2304df62 |
1127 | case 'F': |
1128 | minus_F = TRUE; |
a0d0e21e |
1129 | splitstr = savepv(s + 1); |
2304df62 |
1130 | s += strlen(s); |
1131 | return s; |
79072805 |
1132 | case 'a': |
1133 | minus_a = TRUE; |
1134 | s++; |
1135 | return s; |
1136 | case 'c': |
1137 | minus_c = TRUE; |
1138 | s++; |
1139 | return s; |
1140 | case 'd': |
463ee0b2 |
1141 | taint_not("-d"); |
4633a7c4 |
1142 | s++; |
c07a80fd |
1143 | if (*s == ':' || *s == '=') { |
4633a7c4 |
1144 | sprintf(buf, "use Devel::%s;", ++s); |
1145 | s += strlen(s); |
1146 | my_setenv("PERL5DB",buf); |
1147 | } |
a0d0e21e |
1148 | if (!perldb) { |
1149 | perldb = TRUE; |
1150 | init_debugger(); |
1151 | } |
79072805 |
1152 | return s; |
1153 | case 'D': |
1154 | #ifdef DEBUGGING |
463ee0b2 |
1155 | taint_not("-D"); |
79072805 |
1156 | if (isALPHA(s[1])) { |
8990e307 |
1157 | static char debopts[] = "psltocPmfrxuLHXD"; |
79072805 |
1158 | char *d; |
1159 | |
93a17b20 |
1160 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
79072805 |
1161 | debug |= 1 << (d - debopts); |
1162 | } |
1163 | else { |
1164 | debug = atoi(s+1); |
1165 | for (s++; isDIGIT(*s); s++) ; |
1166 | } |
8990e307 |
1167 | debug |= 0x80000000; |
79072805 |
1168 | #else |
1169 | warn("Recompile perl with -DDEBUGGING to use -D switch\n"); |
a0d0e21e |
1170 | for (s++; isALNUM(*s); s++) ; |
79072805 |
1171 | #endif |
1172 | /*SUPPRESS 530*/ |
1173 | return s; |
4633a7c4 |
1174 | case 'h': |
1175 | usage(origargv[0]); |
1176 | exit(0); |
79072805 |
1177 | case 'i': |
1178 | if (inplace) |
1179 | Safefree(inplace); |
a0d0e21e |
1180 | inplace = savepv(s+1); |
79072805 |
1181 | /*SUPPRESS 530*/ |
1182 | for (s = inplace; *s && !isSPACE(*s); s++) ; |
1183 | *s = '\0'; |
1184 | break; |
1185 | case 'I': |
463ee0b2 |
1186 | taint_not("-I"); |
79072805 |
1187 | if (*++s) { |
748a9306 |
1188 | char *e; |
1189 | for (e = s; *e && !isSPACE(*e); e++) ; |
1190 | av_push(GvAVn(incgv),newSVpv(s,e-s)); |
1191 | if (*e) |
1192 | return e; |
79072805 |
1193 | } |
1194 | else |
463ee0b2 |
1195 | croak("No space allowed after -I"); |
79072805 |
1196 | break; |
1197 | case 'l': |
1198 | minus_l = TRUE; |
1199 | s++; |
a0d0e21e |
1200 | if (ors) |
1201 | Safefree(ors); |
79072805 |
1202 | if (isDIGIT(*s)) { |
a0d0e21e |
1203 | ors = savepv("\n"); |
79072805 |
1204 | orslen = 1; |
1205 | *ors = scan_oct(s, 3 + (*s == '0'), &numlen); |
1206 | s += numlen; |
1207 | } |
1208 | else { |
c07a80fd |
1209 | if (RsPARA(nrs)) { |
6e72f9df |
1210 | ors = "\n\n"; |
c07a80fd |
1211 | orslen = 2; |
1212 | } |
1213 | else |
1214 | ors = SvPV(nrs, orslen); |
6e72f9df |
1215 | ors = savepvn(ors, orslen); |
79072805 |
1216 | } |
1217 | return s; |
1a30305b |
1218 | case 'M': |
1219 | taint_not("-M"); /* XXX ? */ |
1220 | /* FALL THROUGH */ |
1221 | case 'm': |
1222 | taint_not("-m"); /* XXX ? */ |
1223 | if (*++s) { |
a5f75d66 |
1224 | char *start; |
1225 | char *use = "use "; |
1226 | /* -M-foo == 'no foo' */ |
1227 | if (*s == '-') { use = "no "; ++s; } |
1228 | Sv = newSVpv(use,0); |
1229 | start = s; |
1a30305b |
1230 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd |
1231 | while(isALNUM(*s) || *s==':') ++s; |
1232 | if (*s != '=') { |
1233 | sv_catpv(Sv, start); |
1234 | if (*(start-1) == 'm') { |
1235 | if (*s != '\0') |
1236 | croak("Can't use '%c' after -mname", *s); |
1237 | sv_catpv( Sv, " ()"); |
1238 | } |
1239 | } else { |
1240 | sv_catpvn(Sv, start, s-start); |
a5f75d66 |
1241 | sv_catpv(Sv, " split(/,/,q{"); |
c07a80fd |
1242 | sv_catpv(Sv, ++s); |
a5f75d66 |
1243 | sv_catpv(Sv, "})"); |
c07a80fd |
1244 | } |
1a30305b |
1245 | s += strlen(s); |
c07a80fd |
1246 | if (preambleav == NULL) |
1247 | preambleav = newAV(); |
1248 | av_push(preambleav, Sv); |
1a30305b |
1249 | } |
1250 | else |
1251 | croak("No space allowed after -%c", *(s-1)); |
1252 | return s; |
79072805 |
1253 | case 'n': |
1254 | minus_n = TRUE; |
1255 | s++; |
1256 | return s; |
1257 | case 'p': |
1258 | minus_p = TRUE; |
1259 | s++; |
1260 | return s; |
1261 | case 's': |
463ee0b2 |
1262 | taint_not("-s"); |
79072805 |
1263 | doswitches = TRUE; |
1264 | s++; |
1265 | return s; |
463ee0b2 |
1266 | case 'T': |
1267 | tainting = TRUE; |
1268 | s++; |
1269 | return s; |
79072805 |
1270 | case 'u': |
1271 | do_undump = TRUE; |
1272 | s++; |
1273 | return s; |
1274 | case 'U': |
1275 | unsafe = TRUE; |
1276 | s++; |
1277 | return s; |
1278 | case 'v': |
a5f75d66 |
1279 | #if defined(SUBVERSION) && SUBVERSION > 0 |
1280 | printf("\nThis is perl, version 5.%03d_%02d", PATCHLEVEL, SUBVERSION); |
1281 | #else |
1282 | printf("\nThis is perl, version %s",patchlevel); |
1283 | #endif |
1a30305b |
1284 | |
760ac839 |
1285 | printf("\n\nCopyright 1987-1996, Larry Wall\n"); |
1286 | printf("\n\t+ suidperl security patch"); |
79072805 |
1287 | #ifdef MSDOS |
760ac839 |
1288 | printf("MS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); |
4633a7c4 |
1289 | #endif |
79072805 |
1290 | #ifdef OS2 |
760ac839 |
1291 | printf("OS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" |
1292 | "Version 5 port Copyright (c) 1994-1996, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 |
1293 | #endif |
79072805 |
1294 | #ifdef atarist |
760ac839 |
1295 | printf("atariST series port, ++jrb bammi@cadence.com\n"); |
79072805 |
1296 | #endif |
760ac839 |
1297 | printf("\n\ |
79072805 |
1298 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
760ac839 |
1299 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n"); |
79072805 |
1300 | #ifdef MSDOS |
1301 | usage(origargv[0]); |
1302 | #endif |
1303 | exit(0); |
1304 | case 'w': |
1305 | dowarn = TRUE; |
1306 | s++; |
1307 | return s; |
a0d0e21e |
1308 | case '*': |
79072805 |
1309 | case ' ': |
1310 | if (s[1] == '-') /* Additional switches on #! line. */ |
1311 | return s+2; |
1312 | break; |
a0d0e21e |
1313 | case '-': |
79072805 |
1314 | case 0: |
1315 | case '\n': |
1316 | case '\t': |
1317 | break; |
a0d0e21e |
1318 | case 'P': |
1319 | if (preprocess) |
1320 | return s+1; |
1321 | /* FALL THROUGH */ |
79072805 |
1322 | default: |
a0d0e21e |
1323 | croak("Can't emulate -%.1s on #! line",s); |
79072805 |
1324 | } |
1325 | return Nullch; |
1326 | } |
1327 | |
1328 | /* compliments of Tom Christiansen */ |
1329 | |
1330 | /* unexec() can be found in the Gnu emacs distribution */ |
1331 | |
1332 | void |
1333 | my_unexec() |
1334 | { |
1335 | #ifdef UNEXEC |
1336 | int status; |
1337 | extern int etext; |
1338 | |
1339 | sprintf (buf, "%s.perldump", origfilename); |
1340 | sprintf (tokenbuf, "%s/perl", BIN); |
1341 | |
1342 | status = unexec(buf, tokenbuf, &etext, sbrk(0), 0); |
1343 | if (status) |
760ac839 |
1344 | PerlIO_printf(PerlIO_stderr(), "unexec of %s into %s failed!\n", tokenbuf, buf); |
a0d0e21e |
1345 | exit(status); |
79072805 |
1346 | #else |
a5f75d66 |
1347 | # ifdef VMS |
1348 | # include <lib$routines.h> |
1349 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ |
1350 | #else |
79072805 |
1351 | ABORT(); /* for use with undump */ |
1352 | #endif |
a5f75d66 |
1353 | #endif |
79072805 |
1354 | } |
1355 | |
1356 | static void |
1357 | init_main_stash() |
1358 | { |
463ee0b2 |
1359 | GV *gv; |
6e72f9df |
1360 | |
1361 | /* Note that strtab is a rather special HV. Assumptions are made |
1362 | about not iterating on it, and not adding tie magic to it. |
1363 | It is properly deallocated in perl_destruct() */ |
1364 | strtab = newHV(); |
1365 | HvSHAREKEYS_off(strtab); /* mandatory */ |
1366 | Newz(506,((XPVHV*)SvANY(strtab))->xhv_array, |
1367 | sizeof(HE*) * (((XPVHV*)SvANY(strtab))->xhv_max + 1), char); |
1368 | |
463ee0b2 |
1369 | curstash = defstash = newHV(); |
79072805 |
1370 | curstname = newSVpv("main",4); |
adbc6bb1 |
1371 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
1372 | SvREFCNT_dec(GvHV(gv)); |
1373 | GvHV(gv) = (HV*)SvREFCNT_inc(defstash); |
463ee0b2 |
1374 | SvREADONLY_on(gv); |
a0d0e21e |
1375 | HvNAME(defstash) = savepv("main"); |
85e6fe83 |
1376 | incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); |
a5f75d66 |
1377 | GvMULTI_on(incgv); |
a0d0e21e |
1378 | defgv = gv_fetchpv("_",TRUE, SVt_PVAV); |
4633a7c4 |
1379 | errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); |
a5f75d66 |
1380 | GvMULTI_on(errgv); |
8990e307 |
1381 | curstash = defstash; |
1382 | compiling.cop_stash = defstash; |
adbc6bb1 |
1383 | debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); |
4633a7c4 |
1384 | /* We must init $/ before switches are processed. */ |
1385 | sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1); |
79072805 |
1386 | } |
1387 | |
a0d0e21e |
1388 | #ifdef CAN_PROTOTYPE |
1389 | static void |
1390 | open_script(char *scriptname, bool dosearch, SV *sv) |
1391 | #else |
79072805 |
1392 | static void |
1393 | open_script(scriptname,dosearch,sv) |
1394 | char *scriptname; |
1395 | bool dosearch; |
1396 | SV *sv; |
a0d0e21e |
1397 | #endif |
79072805 |
1398 | { |
1399 | char *xfound = Nullch; |
1400 | char *xfailed = Nullch; |
1401 | register char *s; |
1402 | I32 len; |
a38d6535 |
1403 | int retval; |
1404 | #if defined(DOSISH) && !defined(OS2) && !defined(atarist) |
1405 | #define SEARCH_EXTS ".bat", ".cmd", NULL |
1406 | #endif |
ab821d7f |
1407 | #ifdef VMS |
1408 | # define SEARCH_EXTS ".pl", ".com", NULL |
1409 | #endif |
a38d6535 |
1410 | /* additional extensions to try in each dir if scriptname not found */ |
1411 | #ifdef SEARCH_EXTS |
1412 | char *ext[] = { SEARCH_EXTS }; |
1413 | int extidx = (strchr(scriptname,'.')) ? -1 : 0; /* has ext already */ |
1414 | #endif |
79072805 |
1415 | |
c07a80fd |
1416 | #ifdef VMS |
6e72f9df |
1417 | if (dosearch) { |
1418 | int hasdir, idx = 0, deftypes = 1; |
1419 | |
1420 | hasdir = (strpbrk(scriptname,":[</") != Nullch) ; |
1421 | /* The first time through, just add SEARCH_EXTS to whatever we |
1422 | * already have, so we can check for default file types. */ |
1423 | while (deftypes || (!hasdir && my_trnlnm("DCL$PATH",tokenbuf,idx++)) ) { |
1424 | if (deftypes) { deftypes = 0; *tokenbuf = '\0'; } |
c07a80fd |
1425 | strcat(tokenbuf,scriptname); |
1426 | #else /* !VMS */ |
93a17b20 |
1427 | if (dosearch && !strchr(scriptname, '/') && (s = getenv("PATH"))) { |
79072805 |
1428 | |
1429 | bufend = s + strlen(s); |
1430 | while (*s) { |
1431 | #ifndef DOSISH |
1432 | s = cpytill(tokenbuf,s,bufend,':',&len); |
1433 | #else |
1434 | #ifdef atarist |
1435 | for (len = 0; *s && *s != ',' && *s != ';'; tokenbuf[len++] = *s++); |
1436 | tokenbuf[len] = '\0'; |
1437 | #else |
1438 | for (len = 0; *s && *s != ';'; tokenbuf[len++] = *s++); |
1439 | tokenbuf[len] = '\0'; |
1440 | #endif |
1441 | #endif |
1442 | if (*s) |
1443 | s++; |
1444 | #ifndef DOSISH |
1445 | if (len && tokenbuf[len-1] != '/') |
1446 | #else |
1447 | #ifdef atarist |
1448 | if (len && ((tokenbuf[len-1] != '\\') && (tokenbuf[len-1] != '/'))) |
1449 | #else |
1450 | if (len && tokenbuf[len-1] != '\\') |
1451 | #endif |
1452 | #endif |
1453 | (void)strcat(tokenbuf+len,"/"); |
1454 | (void)strcat(tokenbuf+len,scriptname); |
c07a80fd |
1455 | #endif /* !VMS */ |
a38d6535 |
1456 | |
1457 | #ifdef SEARCH_EXTS |
1458 | len = strlen(tokenbuf); |
1459 | if (extidx > 0) /* reset after previous loop */ |
1460 | extidx = 0; |
1461 | do { |
1462 | #endif |
760ac839 |
1463 | DEBUG_p(PerlIO_printf(Perl_debug_log, "Looking for %s\n",tokenbuf)); |
a38d6535 |
1464 | retval = Stat(tokenbuf,&statbuf); |
1465 | #ifdef SEARCH_EXTS |
1466 | } while ( retval < 0 /* not there */ |
1467 | && extidx>=0 && ext[extidx] /* try an extension? */ |
1468 | && strcpy(tokenbuf+len, ext[extidx++]) |
1469 | ); |
1470 | #endif |
1471 | if (retval < 0) |
79072805 |
1472 | continue; |
1473 | if (S_ISREG(statbuf.st_mode) |
1474 | && cando(S_IRUSR,TRUE,&statbuf) && cando(S_IXUSR,TRUE,&statbuf)) { |
1475 | xfound = tokenbuf; /* bingo! */ |
1476 | break; |
1477 | } |
1478 | if (!xfailed) |
a0d0e21e |
1479 | xfailed = savepv(tokenbuf); |
79072805 |
1480 | } |
1481 | if (!xfound) |
463ee0b2 |
1482 | croak("Can't execute %s", xfailed ? xfailed : scriptname ); |
79072805 |
1483 | if (xfailed) |
1484 | Safefree(xfailed); |
1485 | scriptname = xfound; |
1486 | } |
1487 | |
96436eeb |
1488 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { |
1489 | char *s = scriptname + 8; |
1490 | fdscript = atoi(s); |
1491 | while (isDIGIT(*s)) |
1492 | s++; |
1493 | if (*s) |
1494 | scriptname = s + 1; |
1495 | } |
1496 | else |
1497 | fdscript = -1; |
ab821d7f |
1498 | origfilename = savepv(e_tmpname ? "-e" : scriptname); |
79072805 |
1499 | curcop->cop_filegv = gv_fetchfile(origfilename); |
1500 | if (strEQ(origfilename,"-")) |
1501 | scriptname = ""; |
96436eeb |
1502 | if (fdscript >= 0) { |
760ac839 |
1503 | rsfp = PerlIO_fdopen(fdscript,"r"); |
96436eeb |
1504 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
760ac839 |
1505 | fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ |
96436eeb |
1506 | #endif |
1507 | } |
1508 | else if (preprocess) { |
79072805 |
1509 | char *cpp = CPPSTDIN; |
1510 | |
1511 | if (strEQ(cpp,"cppstdin")) |
1512 | sprintf(tokenbuf, "%s/%s", SCRIPTDIR, cpp); |
1513 | else |
1514 | sprintf(tokenbuf, "%s", cpp); |
1515 | sv_catpv(sv,"-I"); |
fed7345c |
1516 | sv_catpv(sv,PRIVLIB_EXP); |
79072805 |
1517 | #ifdef MSDOS |
1518 | (void)sprintf(buf, "\ |
1519 | sed %s -e \"/^[^#]/b\" \ |
1520 | -e \"/^#[ ]*include[ ]/b\" \ |
1521 | -e \"/^#[ ]*define[ ]/b\" \ |
1522 | -e \"/^#[ ]*if[ ]/b\" \ |
1523 | -e \"/^#[ ]*ifdef[ ]/b\" \ |
1524 | -e \"/^#[ ]*ifndef[ ]/b\" \ |
1525 | -e \"/^#[ ]*else/b\" \ |
1526 | -e \"/^#[ ]*elif[ ]/b\" \ |
1527 | -e \"/^#[ ]*undef[ ]/b\" \ |
1528 | -e \"/^#[ ]*endif/b\" \ |
1529 | -e \"s/^#.*//\" \ |
1530 | %s | %s -C %s %s", |
1531 | (doextract ? "-e \"1,/^#/d\n\"" : ""), |
1532 | #else |
1533 | (void)sprintf(buf, "\ |
1534 | %s %s -e '/^[^#]/b' \ |
1535 | -e '/^#[ ]*include[ ]/b' \ |
1536 | -e '/^#[ ]*define[ ]/b' \ |
1537 | -e '/^#[ ]*if[ ]/b' \ |
1538 | -e '/^#[ ]*ifdef[ ]/b' \ |
1539 | -e '/^#[ ]*ifndef[ ]/b' \ |
1540 | -e '/^#[ ]*else/b' \ |
1541 | -e '/^#[ ]*elif[ ]/b' \ |
1542 | -e '/^#[ ]*undef[ ]/b' \ |
1543 | -e '/^#[ ]*endif/b' \ |
1544 | -e 's/^[ ]*#.*//' \ |
1545 | %s | %s -C %s %s", |
1546 | #ifdef LOC_SED |
1547 | LOC_SED, |
1548 | #else |
1549 | "sed", |
1550 | #endif |
1551 | (doextract ? "-e '1,/^#/d\n'" : ""), |
1552 | #endif |
463ee0b2 |
1553 | scriptname, tokenbuf, SvPV(sv, na), CPPMINUS); |
79072805 |
1554 | doextract = FALSE; |
1555 | #ifdef IAMSUID /* actually, this is caught earlier */ |
1556 | if (euid != uid && !euid) { /* if running suidperl */ |
1557 | #ifdef HAS_SETEUID |
1558 | (void)seteuid(uid); /* musn't stay setuid root */ |
1559 | #else |
1560 | #ifdef HAS_SETREUID |
85e6fe83 |
1561 | (void)setreuid((Uid_t)-1, uid); |
1562 | #else |
1563 | #ifdef HAS_SETRESUID |
1564 | (void)setresuid((Uid_t)-1, uid, (Uid_t)-1); |
79072805 |
1565 | #else |
1566 | setuid(uid); |
1567 | #endif |
1568 | #endif |
85e6fe83 |
1569 | #endif |
79072805 |
1570 | if (geteuid() != uid) |
463ee0b2 |
1571 | croak("Can't do seteuid!\n"); |
79072805 |
1572 | } |
1573 | #endif /* IAMSUID */ |
1574 | rsfp = my_popen(buf,"r"); |
1575 | } |
1576 | else if (!*scriptname) { |
463ee0b2 |
1577 | taint_not("program input from stdin"); |
760ac839 |
1578 | rsfp = PerlIO_stdin(); |
79072805 |
1579 | } |
96436eeb |
1580 | else { |
760ac839 |
1581 | rsfp = PerlIO_open(scriptname,"r"); |
96436eeb |
1582 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
760ac839 |
1583 | fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ |
96436eeb |
1584 | #endif |
1585 | } |
760ac839 |
1586 | if ((PerlIO*)rsfp == Nullfp) { |
13281fa4 |
1587 | #ifdef DOSUID |
a687059c |
1588 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
a0d0e21e |
1589 | if (euid && Stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 && |
13281fa4 |
1590 | statbuf.st_mode & (S_ISUID|S_ISGID)) { |
27e2fb84 |
1591 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c |
1592 | execv(buf, origargv); /* try again */ |
463ee0b2 |
1593 | croak("Can't do setuid\n"); |
13281fa4 |
1594 | } |
1595 | #endif |
1596 | #endif |
463ee0b2 |
1597 | croak("Can't open perl script \"%s\": %s\n", |
2304df62 |
1598 | SvPVX(GvSV(curcop->cop_filegv)), Strerror(errno)); |
13281fa4 |
1599 | } |
79072805 |
1600 | } |
8d063cd8 |
1601 | |
79072805 |
1602 | static void |
96436eeb |
1603 | validate_suid(validarg, scriptname) |
79072805 |
1604 | char *validarg; |
96436eeb |
1605 | char *scriptname; |
79072805 |
1606 | { |
96436eeb |
1607 | int which; |
1608 | |
13281fa4 |
1609 | /* do we need to emulate setuid on scripts? */ |
1610 | |
1611 | /* This code is for those BSD systems that have setuid #! scripts disabled |
1612 | * in the kernel because of a security problem. Merely defining DOSUID |
1613 | * in perl will not fix that problem, but if you have disabled setuid |
1614 | * scripts in the kernel, this will attempt to emulate setuid and setgid |
1615 | * on scripts that have those now-otherwise-useless bits set. The setuid |
27e2fb84 |
1616 | * root version must be called suidperl or sperlN.NNN. If regular perl |
1617 | * discovers that it has opened a setuid script, it calls suidperl with |
1618 | * the same argv that it had. If suidperl finds that the script it has |
1619 | * just opened is NOT setuid root, it sets the effective uid back to the |
1620 | * uid. We don't just make perl setuid root because that loses the |
1621 | * effective uid we had before invoking perl, if it was different from the |
1622 | * uid. |
13281fa4 |
1623 | * |
1624 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must |
1625 | * be defined in suidperl only. suidperl must be setuid root. The |
1626 | * Configure script will set this up for you if you want it. |
1627 | */ |
a687059c |
1628 | |
13281fa4 |
1629 | #ifdef DOSUID |
6e72f9df |
1630 | char *s, *s2; |
a0d0e21e |
1631 | |
760ac839 |
1632 | if (Fstat(PerlIO_fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */ |
463ee0b2 |
1633 | croak("Can't stat script \"%s\"",origfilename); |
96436eeb |
1634 | if (fdscript < 0 && statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 |
1635 | I32 len; |
13281fa4 |
1636 | |
a687059c |
1637 | #ifdef IAMSUID |
fe14fcc3 |
1638 | #ifndef HAS_SETREUID |
a687059c |
1639 | /* On this access check to make sure the directories are readable, |
1640 | * there is actually a small window that the user could use to make |
1641 | * filename point to an accessible directory. So there is a faint |
1642 | * chance that someone could execute a setuid script down in a |
1643 | * non-accessible directory. I don't know what to do about that. |
1644 | * But I don't think it's too important. The manual lies when |
1645 | * it says access() is useful in setuid programs. |
1646 | */ |
463ee0b2 |
1647 | if (access(SvPVX(GvSV(curcop->cop_filegv)),1)) /*double check*/ |
1648 | croak("Permission denied"); |
a687059c |
1649 | #else |
1650 | /* If we can swap euid and uid, then we can determine access rights |
1651 | * with a simple stat of the file, and then compare device and |
1652 | * inode to make sure we did stat() on the same file we opened. |
1653 | * Then we just have to make sure he or she can execute it. |
1654 | */ |
1655 | { |
1656 | struct stat tmpstatbuf; |
1657 | |
85e6fe83 |
1658 | if ( |
1659 | #ifdef HAS_SETREUID |
1660 | setreuid(euid,uid) < 0 |
a0d0e21e |
1661 | #else |
1662 | # if HAS_SETRESUID |
85e6fe83 |
1663 | setresuid(euid,uid,(Uid_t)-1) < 0 |
a0d0e21e |
1664 | # endif |
85e6fe83 |
1665 | #endif |
1666 | || getuid() != euid || geteuid() != uid) |
463ee0b2 |
1667 | croak("Can't swap uid and euid"); /* really paranoid */ |
a0d0e21e |
1668 | if (Stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0) |
463ee0b2 |
1669 | croak("Permission denied"); /* testing full pathname here */ |
a687059c |
1670 | if (tmpstatbuf.st_dev != statbuf.st_dev || |
1671 | tmpstatbuf.st_ino != statbuf.st_ino) { |
760ac839 |
1672 | (void)PerlIO_close(rsfp); |
79072805 |
1673 | if (rsfp = my_popen("/bin/mail root","w")) { /* heh, heh */ |
760ac839 |
1674 | PerlIO_printf(rsfp, |
a687059c |
1675 | "User %d tried to run dev %d ino %d in place of dev %d ino %d!\n\ |
1676 | (Filename of set-id script was %s, uid %d gid %d.)\n\nSincerely,\nperl\n", |
1677 | uid,tmpstatbuf.st_dev, tmpstatbuf.st_ino, |
1678 | statbuf.st_dev, statbuf.st_ino, |
463ee0b2 |
1679 | SvPVX(GvSV(curcop->cop_filegv)), |
20188a90 |
1680 | statbuf.st_uid, statbuf.st_gid); |
79072805 |
1681 | (void)my_pclose(rsfp); |
a687059c |
1682 | } |
463ee0b2 |
1683 | croak("Permission denied\n"); |
a687059c |
1684 | } |
85e6fe83 |
1685 | if ( |
1686 | #ifdef HAS_SETREUID |
1687 | setreuid(uid,euid) < 0 |
a0d0e21e |
1688 | #else |
1689 | # if defined(HAS_SETRESUID) |
85e6fe83 |
1690 | setresuid(uid,euid,(Uid_t)-1) < 0 |
a0d0e21e |
1691 | # endif |
85e6fe83 |
1692 | #endif |
1693 | || getuid() != uid || geteuid() != euid) |
463ee0b2 |
1694 | croak("Can't reswap uid and euid"); |
27e2fb84 |
1695 | if (!cando(S_IXUSR,FALSE,&statbuf)) /* can real uid exec? */ |
463ee0b2 |
1696 | croak("Permission denied\n"); |
a687059c |
1697 | } |
fe14fcc3 |
1698 | #endif /* HAS_SETREUID */ |
a687059c |
1699 | #endif /* IAMSUID */ |
1700 | |
27e2fb84 |
1701 | if (!S_ISREG(statbuf.st_mode)) |
463ee0b2 |
1702 | croak("Permission denied"); |
27e2fb84 |
1703 | if (statbuf.st_mode & S_IWOTH) |
463ee0b2 |
1704 | croak("Setuid/gid script is writable by world"); |
13281fa4 |
1705 | doswitches = FALSE; /* -s is insecure in suid */ |
79072805 |
1706 | curcop->cop_line++; |
760ac839 |
1707 | if (sv_gets(linestr, rsfp, 0) == Nullch || |
1708 | strnNE(SvPV(linestr,na),"#!",2) ) /* required even on Sys V */ |
463ee0b2 |
1709 | croak("No #! line"); |
760ac839 |
1710 | s = SvPV(linestr,na)+2; |
663a0e37 |
1711 | if (*s == ' ') s++; |
45d8adaa |
1712 | while (!isSPACE(*s)) s++; |
760ac839 |
1713 | for (s2 = s; (s2 > SvPV(linestr,na)+2 && |
6e72f9df |
1714 | (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ; |
1715 | if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ |
463ee0b2 |
1716 | croak("Not a perl script"); |
a687059c |
1717 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 |
1718 | /* |
1719 | * #! arg must be what we saw above. They can invoke it by |
1720 | * mentioning suidperl explicitly, but they may not add any strange |
1721 | * arguments beyond what #! says if they do invoke suidperl that way. |
1722 | */ |
1723 | len = strlen(validarg); |
1724 | if (strEQ(validarg," PHOOEY ") || |
45d8adaa |
1725 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
463ee0b2 |
1726 | croak("Args must match #! line"); |
a687059c |
1727 | |
1728 | #ifndef IAMSUID |
1729 | if (euid != uid && (statbuf.st_mode & S_ISUID) && |
1730 | euid == statbuf.st_uid) |
1731 | if (!do_undump) |
463ee0b2 |
1732 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c |
1733 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1734 | #endif /* IAMSUID */ |
13281fa4 |
1735 | |
1736 | if (euid) { /* oops, we're not the setuid root perl */ |
760ac839 |
1737 | (void)PerlIO_close(rsfp); |
13281fa4 |
1738 | #ifndef IAMSUID |
27e2fb84 |
1739 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c |
1740 | execv(buf, origargv); /* try again */ |
13281fa4 |
1741 | #endif |
463ee0b2 |
1742 | croak("Can't do setuid\n"); |
13281fa4 |
1743 | } |
1744 | |
83025b21 |
1745 | if (statbuf.st_mode & S_ISGID && statbuf.st_gid != egid) { |
fe14fcc3 |
1746 | #ifdef HAS_SETEGID |
a687059c |
1747 | (void)setegid(statbuf.st_gid); |
1748 | #else |
fe14fcc3 |
1749 | #ifdef HAS_SETREGID |
85e6fe83 |
1750 | (void)setregid((Gid_t)-1,statbuf.st_gid); |
1751 | #else |
1752 | #ifdef HAS_SETRESGID |
1753 | (void)setresgid((Gid_t)-1,statbuf.st_gid,(Gid_t)-1); |
a687059c |
1754 | #else |
1755 | setgid(statbuf.st_gid); |
1756 | #endif |
1757 | #endif |
85e6fe83 |
1758 | #endif |
83025b21 |
1759 | if (getegid() != statbuf.st_gid) |
463ee0b2 |
1760 | croak("Can't do setegid!\n"); |
83025b21 |
1761 | } |
a687059c |
1762 | if (statbuf.st_mode & S_ISUID) { |
1763 | if (statbuf.st_uid != euid) |
fe14fcc3 |
1764 | #ifdef HAS_SETEUID |
a687059c |
1765 | (void)seteuid(statbuf.st_uid); /* all that for this */ |
1766 | #else |
fe14fcc3 |
1767 | #ifdef HAS_SETREUID |
85e6fe83 |
1768 | (void)setreuid((Uid_t)-1,statbuf.st_uid); |
1769 | #else |
1770 | #ifdef HAS_SETRESUID |
1771 | (void)setresuid((Uid_t)-1,statbuf.st_uid,(Uid_t)-1); |
a687059c |
1772 | #else |
1773 | setuid(statbuf.st_uid); |
1774 | #endif |
1775 | #endif |
85e6fe83 |
1776 | #endif |
83025b21 |
1777 | if (geteuid() != statbuf.st_uid) |
463ee0b2 |
1778 | croak("Can't do seteuid!\n"); |
a687059c |
1779 | } |
83025b21 |
1780 | else if (uid) { /* oops, mustn't run as root */ |
fe14fcc3 |
1781 | #ifdef HAS_SETEUID |
85e6fe83 |
1782 | (void)seteuid((Uid_t)uid); |
a687059c |
1783 | #else |
fe14fcc3 |
1784 | #ifdef HAS_SETREUID |
85e6fe83 |
1785 | (void)setreuid((Uid_t)-1,(Uid_t)uid); |
a687059c |
1786 | #else |
85e6fe83 |
1787 | #ifdef HAS_SETRESUID |
1788 | (void)setresuid((Uid_t)-1,(Uid_t)uid,(Uid_t)-1); |
1789 | #else |
1790 | setuid((Uid_t)uid); |
1791 | #endif |
a687059c |
1792 | #endif |
1793 | #endif |
83025b21 |
1794 | if (geteuid() != uid) |
463ee0b2 |
1795 | croak("Can't do seteuid!\n"); |
83025b21 |
1796 | } |
748a9306 |
1797 | init_ids(); |
27e2fb84 |
1798 | if (!cando(S_IXUSR,TRUE,&statbuf)) |
463ee0b2 |
1799 | croak("Permission denied\n"); /* they can't do this */ |
13281fa4 |
1800 | } |
1801 | #ifdef IAMSUID |
1802 | else if (preprocess) |
463ee0b2 |
1803 | croak("-P not allowed for setuid/setgid script\n"); |
96436eeb |
1804 | else if (fdscript >= 0) |
1805 | croak("fd script not allowed in suidperl\n"); |
13281fa4 |
1806 | else |
463ee0b2 |
1807 | croak("Script is not setuid/setgid in suidperl\n"); |
96436eeb |
1808 | |
1809 | /* We absolutely must clear out any saved ids here, so we */ |
1810 | /* exec the real perl, substituting fd script for scriptname. */ |
1811 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ |
760ac839 |
1812 | PerlIO_rewind(rsfp); |
1813 | lseek(PerlIO_fileno(rsfp),(Off_t)0,0); /* just in case rewind didn't */ |
96436eeb |
1814 | for (which = 1; origargv[which] && origargv[which] != scriptname; which++) ; |
1815 | if (!origargv[which]) |
1816 | croak("Permission denied"); |
760ac839 |
1817 | (void)sprintf(buf, "/dev/fd/%d/%.127s", PerlIO_fileno(rsfp), origargv[which]); |
96436eeb |
1818 | origargv[which] = buf; |
1819 | |
1820 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
760ac839 |
1821 | fcntl(PerlIO_fileno(rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb |
1822 | #endif |
1823 | |
1824 | (void)sprintf(tokenbuf, "%s/perl%s", BIN, patchlevel); |
1825 | execv(tokenbuf, origargv); /* try again */ |
1826 | croak("Can't do setuid\n"); |
13281fa4 |
1827 | #endif /* IAMSUID */ |
a687059c |
1828 | #else /* !DOSUID */ |
a687059c |
1829 | if (euid != uid || egid != gid) { /* (suidperl doesn't exist, in fact) */ |
1830 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW |
760ac839 |
1831 | Fstat(PerlIO_fileno(rsfp),&statbuf); /* may be either wrapped or real suid */ |
a687059c |
1832 | if ((euid != uid && euid == statbuf.st_uid && statbuf.st_mode & S_ISUID) |
1833 | || |
1834 | (egid != gid && egid == statbuf.st_gid && statbuf.st_mode & S_ISGID) |
1835 | ) |
1836 | if (!do_undump) |
463ee0b2 |
1837 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c |
1838 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1839 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ |
1840 | /* not set-id, must be wrapped */ |
a687059c |
1841 | } |
13281fa4 |
1842 | #endif /* DOSUID */ |
79072805 |
1843 | } |
13281fa4 |
1844 | |
79072805 |
1845 | static void |
1846 | find_beginning() |
1847 | { |
6e72f9df |
1848 | register char *s, *s2; |
33b78306 |
1849 | |
1850 | /* skip forward in input to the real script? */ |
1851 | |
463ee0b2 |
1852 | taint_not("-x"); |
33b78306 |
1853 | while (doextract) { |
79072805 |
1854 | if ((s = sv_gets(linestr, rsfp, 0)) == Nullch) |
463ee0b2 |
1855 | croak("No Perl script found in input\n"); |
6e72f9df |
1856 | if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) { |
760ac839 |
1857 | PerlIO_ungetc(rsfp, '\n'); /* to keep line count right */ |
33b78306 |
1858 | doextract = FALSE; |
6e72f9df |
1859 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
1860 | s2 = s; |
1861 | while (*s == ' ' || *s == '\t') s++; |
1862 | if (*s++ == '-') { |
1863 | while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--; |
1864 | if (strnEQ(s2-4,"perl",4)) |
1865 | /*SUPPRESS 530*/ |
1866 | while (s = moreswitches(s)) ; |
33b78306 |
1867 | } |
79072805 |
1868 | if (cddir && chdir(cddir) < 0) |
463ee0b2 |
1869 | croak("Can't chdir to %s",cddir); |
83025b21 |
1870 | } |
1871 | } |
1872 | } |
1873 | |
79072805 |
1874 | static void |
748a9306 |
1875 | init_ids() |
352d5a3a |
1876 | { |
748a9306 |
1877 | uid = (int)getuid(); |
1878 | euid = (int)geteuid(); |
1879 | gid = (int)getgid(); |
1880 | egid = (int)getegid(); |
1881 | #ifdef VMS |
1882 | uid |= gid << 16; |
1883 | euid |= egid << 16; |
1884 | #endif |
4633a7c4 |
1885 | tainting |= (uid && (euid != uid || egid != gid)); |
748a9306 |
1886 | } |
79072805 |
1887 | |
748a9306 |
1888 | static void |
1889 | init_debugger() |
1890 | { |
79072805 |
1891 | curstash = debstash; |
748a9306 |
1892 | dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); |
79072805 |
1893 | AvREAL_off(dbargs); |
a0d0e21e |
1894 | DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); |
1895 | DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); |
748a9306 |
1896 | DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); |
1897 | DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); |
c07a80fd |
1898 | sv_setiv(DBsingle, 0); |
748a9306 |
1899 | DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); |
c07a80fd |
1900 | sv_setiv(DBtrace, 0); |
748a9306 |
1901 | DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); |
c07a80fd |
1902 | sv_setiv(DBsignal, 0); |
79072805 |
1903 | curstash = defstash; |
352d5a3a |
1904 | } |
1905 | |
79072805 |
1906 | static void |
8990e307 |
1907 | init_stacks() |
79072805 |
1908 | { |
6e72f9df |
1909 | curstack = newAV(); |
1910 | mainstack = curstack; /* remember in case we switch stacks */ |
1911 | AvREAL_off(curstack); /* not a real array */ |
1912 | av_extend(curstack,127); |
79072805 |
1913 | |
6e72f9df |
1914 | stack_base = AvARRAY(curstack); |
79072805 |
1915 | stack_sp = stack_base; |
8990e307 |
1916 | stack_max = stack_base + 127; |
79072805 |
1917 | |
6e72f9df |
1918 | /* Shouldn't these stacks be per-interpreter? */ |
1919 | if (markstack) { |
1920 | markstack_ptr = markstack; |
1921 | } else { |
1922 | New(54,markstack,64,I32); |
1923 | markstack_ptr = markstack; |
1924 | markstack_max = markstack + 64; |
1925 | } |
79072805 |
1926 | |
6e72f9df |
1927 | if (scopestack) { |
1928 | scopestack_ix = 0; |
1929 | } else { |
1930 | New(54,scopestack,32,I32); |
1931 | scopestack_ix = 0; |
1932 | scopestack_max = 32; |
1933 | } |
79072805 |
1934 | |
6e72f9df |
1935 | if (savestack) { |
1936 | savestack_ix = 0; |
1937 | } else { |
1938 | New(54,savestack,128,ANY); |
1939 | savestack_ix = 0; |
1940 | savestack_max = 128; |
1941 | } |
79072805 |
1942 | |
6e72f9df |
1943 | if (retstack) { |
1944 | retstack_ix = 0; |
1945 | } else { |
1946 | New(54,retstack,16,OP*); |
1947 | retstack_ix = 0; |
1948 | retstack_max = 16; |
1949 | } |
8d063cd8 |
1950 | |
a5f75d66 |
1951 | cxstack_max = 8192 / sizeof(CONTEXT) - 2; /* Use most of 8K. */ |
1952 | New(50,cxstack,cxstack_max + 1,CONTEXT); |
8990e307 |
1953 | cxstack_ix = -1; |
8990e307 |
1954 | |
1955 | New(50,tmps_stack,128,SV*); |
1956 | tmps_ix = -1; |
1957 | tmps_max = 128; |
1958 | |
79072805 |
1959 | DEBUG( { |
1960 | New(51,debname,128,char); |
1961 | New(52,debdelim,128,char); |
1962 | } ) |
378cc40b |
1963 | } |
33b78306 |
1964 | |
6e72f9df |
1965 | static void |
1966 | nuke_stacks() |
1967 | { |
1968 | Safefree(cxstack); |
1969 | Safefree(tmps_stack); |
1970 | } |
1971 | |
760ac839 |
1972 | static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
79072805 |
1973 | static void |
8990e307 |
1974 | init_lexer() |
1975 | { |
a0d0e21e |
1976 | tmpfp = rsfp; |
8990e307 |
1977 | |
1978 | lex_start(linestr); |
1979 | rsfp = tmpfp; |
1980 | subname = newSVpv("main",4); |
1981 | } |
1982 | |
1983 | static void |
79072805 |
1984 | init_predump_symbols() |
45d8adaa |
1985 | { |
93a17b20 |
1986 | GV *tmpgv; |
a0d0e21e |
1987 | GV *othergv; |
79072805 |
1988 | |
85e6fe83 |
1989 | sv_setpvn(GvSV(gv_fetchpv("\"", TRUE, SVt_PV)), " ", 1); |
79072805 |
1990 | |
85e6fe83 |
1991 | stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
a5f75d66 |
1992 | GvMULTI_on(stdingv); |
760ac839 |
1993 | IoIFP(GvIOp(stdingv)) = PerlIO_stdin(); |
adbc6bb1 |
1994 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 |
1995 | GvMULTI_on(tmpgv); |
a0d0e21e |
1996 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(stdingv)); |
79072805 |
1997 | |
85e6fe83 |
1998 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 |
1999 | GvMULTI_on(tmpgv); |
760ac839 |
2000 | IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout(); |
4633a7c4 |
2001 | setdefout(tmpgv); |
adbc6bb1 |
2002 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 |
2003 | GvMULTI_on(tmpgv); |
a0d0e21e |
2004 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(defoutgv)); |
79072805 |
2005 | |
a0d0e21e |
2006 | othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
a5f75d66 |
2007 | GvMULTI_on(othergv); |
760ac839 |
2008 | IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr(); |
adbc6bb1 |
2009 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 |
2010 | GvMULTI_on(tmpgv); |
a0d0e21e |
2011 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv)); |
79072805 |
2012 | |
2013 | statname = NEWSV(66,0); /* last filename we did stat on */ |
ab821d7f |
2014 | |
6e72f9df |
2015 | if (!osname) |
2016 | osname = savepv(OSNAME); |
79072805 |
2017 | } |
33b78306 |
2018 | |
79072805 |
2019 | static void |
2020 | init_postdump_symbols(argc,argv,env) |
2021 | register int argc; |
2022 | register char **argv; |
2023 | register char **env; |
33b78306 |
2024 | { |
79072805 |
2025 | char *s; |
2026 | SV *sv; |
2027 | GV* tmpgv; |
fe14fcc3 |
2028 | |
79072805 |
2029 | argc--,argv++; /* skip name of script */ |
2030 | if (doswitches) { |
2031 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
2032 | if (!argv[0][1]) |
2033 | break; |
2034 | if (argv[0][1] == '-') { |
2035 | argc--,argv++; |
2036 | break; |
2037 | } |
93a17b20 |
2038 | if (s = strchr(argv[0], '=')) { |
79072805 |
2039 | *s++ = '\0'; |
85e6fe83 |
2040 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 |
2041 | } |
2042 | else |
85e6fe83 |
2043 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 |
2044 | } |
79072805 |
2045 | } |
2046 | toptarget = NEWSV(0,0); |
2047 | sv_upgrade(toptarget, SVt_PVFM); |
2048 | sv_setpvn(toptarget, "", 0); |
748a9306 |
2049 | bodytarget = NEWSV(0,0); |
79072805 |
2050 | sv_upgrade(bodytarget, SVt_PVFM); |
2051 | sv_setpvn(bodytarget, "", 0); |
2052 | formtarget = bodytarget; |
2053 | |
79072805 |
2054 | tainted = 1; |
85e6fe83 |
2055 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
79072805 |
2056 | sv_setpv(GvSV(tmpgv),origfilename); |
2057 | magicname("0", "0", 1); |
2058 | } |
85e6fe83 |
2059 | if (tmpgv = gv_fetchpv("\024",TRUE, SVt_PV)) |
79072805 |
2060 | time(&basetime); |
85e6fe83 |
2061 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
79072805 |
2062 | sv_setpv(GvSV(tmpgv),origargv[0]); |
85e6fe83 |
2063 | if (argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { |
a5f75d66 |
2064 | GvMULTI_on(argvgv); |
79072805 |
2065 | (void)gv_AVadd(argvgv); |
2066 | av_clear(GvAVn(argvgv)); |
2067 | for (; argc > 0; argc--,argv++) { |
a0d0e21e |
2068 | av_push(GvAVn(argvgv),newSVpv(argv[0],0)); |
79072805 |
2069 | } |
2070 | } |
85e6fe83 |
2071 | if (envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 |
2072 | HV *hv; |
a5f75d66 |
2073 | GvMULTI_on(envgv); |
79072805 |
2074 | hv = GvHVn(envgv); |
463ee0b2 |
2075 | hv_clear(hv); |
a0d0e21e |
2076 | #ifndef VMS /* VMS doesn't have environ array */ |
4633a7c4 |
2077 | /* Note that if the supplied env parameter is actually a copy |
2078 | of the global environ then it may now point to free'd memory |
2079 | if the environment has been modified since. To avoid this |
2080 | problem we treat env==NULL as meaning 'use the default' |
2081 | */ |
2082 | if (!env) |
2083 | env = environ; |
8990e307 |
2084 | if (env != environ) { |
79072805 |
2085 | environ[0] = Nullch; |
8990e307 |
2086 | hv_magic(hv, envgv, 'E'); |
2087 | } |
79072805 |
2088 | for (; *env; env++) { |
93a17b20 |
2089 | if (!(s = strchr(*env,'='))) |
79072805 |
2090 | continue; |
2091 | *s++ = '\0'; |
2092 | sv = newSVpv(s--,0); |
85e6fe83 |
2093 | sv_magic(sv, sv, 'e', *env, s - *env); |
79072805 |
2094 | (void)hv_store(hv, *env, s - *env, sv, 0); |
2095 | *s = '='; |
fe14fcc3 |
2096 | } |
4550b24a |
2097 | #endif |
2098 | #ifdef DYNAMIC_ENV_FETCH |
2099 | HvNAME(hv) = savepv(ENV_HV_NAME); |
2100 | #endif |
f511e57f |
2101 | hv_magic(hv, envgv, 'E'); |
79072805 |
2102 | } |
79072805 |
2103 | tainted = 0; |
85e6fe83 |
2104 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
79072805 |
2105 | sv_setiv(GvSV(tmpgv),(I32)getpid()); |
2106 | |
33b78306 |
2107 | } |
34de22dd |
2108 | |
79072805 |
2109 | static void |
2110 | init_perllib() |
34de22dd |
2111 | { |
85e6fe83 |
2112 | char *s; |
2113 | if (!tainting) { |
2114 | s = getenv("PERL5LIB"); |
2115 | if (s) |
2116 | incpush(s); |
2117 | else |
2118 | incpush(getenv("PERLLIB")); |
2119 | } |
34de22dd |
2120 | |
df5cef82 |
2121 | /* Use the ~-expanded versions of APPLIB (undocumented), |
2122 | ARCHLIB PRIVLIB SITEARCH SITELIB and OLDARCHLIB |
2123 | */ |
4633a7c4 |
2124 | #ifdef APPLLIB_EXP |
2125 | incpush(APPLLIB_EXP); |
16d20bd9 |
2126 | #endif |
4633a7c4 |
2127 | |
fed7345c |
2128 | #ifdef ARCHLIB_EXP |
2129 | incpush(ARCHLIB_EXP); |
a0d0e21e |
2130 | #endif |
fed7345c |
2131 | #ifndef PRIVLIB_EXP |
2132 | #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" |
34de22dd |
2133 | #endif |
fed7345c |
2134 | incpush(PRIVLIB_EXP); |
4633a7c4 |
2135 | |
2136 | #ifdef SITEARCH_EXP |
2137 | incpush(SITEARCH_EXP); |
2138 | #endif |
2139 | #ifdef SITELIB_EXP |
2140 | incpush(SITELIB_EXP); |
2141 | #endif |
2142 | #ifdef OLDARCHLIB_EXP /* 5.00[01] compatibility */ |
2143 | incpush(OLDARCHLIB_EXP); |
2144 | #endif |
a0d0e21e |
2145 | |
4633a7c4 |
2146 | if (!tainting) |
2147 | incpush("."); |
34de22dd |
2148 | } |
93a17b20 |
2149 | |
2150 | void |
2151 | calllist(list) |
2152 | AV* list; |
2153 | { |
a5f75d66 |
2154 | Sigjmp_buf oldtop; |
a0d0e21e |
2155 | STRLEN len; |
2156 | line_t oldline = curcop->cop_line; |
93a17b20 |
2157 | |
a5f75d66 |
2158 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
93a17b20 |
2159 | |
8990e307 |
2160 | while (AvFILL(list) >= 0) { |
2161 | CV *cv = (CV*)av_shift(list); |
93a17b20 |
2162 | |
8990e307 |
2163 | SAVEFREESV(cv); |
a0d0e21e |
2164 | |
a5f75d66 |
2165 | switch (Sigsetjmp(top_env,1)) { |
748a9306 |
2166 | case 0: { |
4633a7c4 |
2167 | SV* atsv = GvSV(errgv); |
748a9306 |
2168 | PUSHMARK(stack_sp); |
2169 | perl_call_sv((SV*)cv, G_EVAL|G_DISCARD); |
2170 | (void)SvPV(atsv, len); |
2171 | if (len) { |
a5f75d66 |
2172 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
748a9306 |
2173 | curcop = &compiling; |
2174 | curcop->cop_line = oldline; |
2175 | if (list == beginav) |
2176 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); |
2177 | else |
2178 | sv_catpv(atsv, "END failed--cleanup aborted"); |
2179 | croak("%s", SvPVX(atsv)); |
2180 | } |
a0d0e21e |
2181 | } |
85e6fe83 |
2182 | break; |
2183 | case 1: |
748a9306 |
2184 | #ifdef VMS |
85e6fe83 |
2185 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 |
2186 | #else |
2187 | statusvalue = 1; |
2188 | #endif |
85e6fe83 |
2189 | /* FALL THROUGH */ |
2190 | case 2: |
2191 | /* my_exit() was called */ |
2192 | curstash = defstash; |
2193 | if (endav) |
2194 | calllist(endav); |
a0d0e21e |
2195 | FREETMPS; |
a5f75d66 |
2196 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e |
2197 | curcop = &compiling; |
2198 | curcop->cop_line = oldline; |
85e6fe83 |
2199 | if (statusvalue) { |
2200 | if (list == beginav) |
a0d0e21e |
2201 | croak("BEGIN failed--compilation aborted"); |
85e6fe83 |
2202 | else |
a0d0e21e |
2203 | croak("END failed--cleanup aborted"); |
85e6fe83 |
2204 | } |
85e6fe83 |
2205 | my_exit(statusvalue); |
2206 | /* NOTREACHED */ |
2207 | return; |
2208 | case 3: |
2209 | if (!restartop) { |
760ac839 |
2210 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e |
2211 | FREETMPS; |
85e6fe83 |
2212 | break; |
2213 | } |
a5f75d66 |
2214 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e |
2215 | curcop = &compiling; |
2216 | curcop->cop_line = oldline; |
a5f75d66 |
2217 | Siglongjmp(top_env, 3); |
8990e307 |
2218 | } |
93a17b20 |
2219 | } |
2220 | |
a5f75d66 |
2221 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
93a17b20 |
2222 | } |
2223 | |