Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* perl.c |
2 | * | |
1a30305b | 3 | * Copyright (c) 1987-1996 Larry Wall |
a687059c | 4 | * |
352d5a3a LW |
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 LW |
8 | */ |
9 | ||
a0d0e21e LW |
10 | /* |
11 | * "A ship then new they built for him/of mithril and of elven glass" --Bilbo | |
12 | */ | |
45d8adaa | 13 | |
378cc40b LW |
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 LW |
19 | #ifdef I_UNISTD |
20 | #include <unistd.h> | |
21 | #endif | |
a0d0e21e | 22 | |
71be2cbc | 23 | dEXTCONST char rcsid[] = "perl.c\nPatch level: ###\n"; |
463ee0b2 | 24 | |
a687059c LW |
25 | #ifdef IAMSUID |
26 | #ifndef DOSUID | |
27 | #define DOSUID | |
28 | #endif | |
29 | #endif | |
378cc40b | 30 | |
a687059c LW |
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)); |
bbce6d69 | 38 | static void forbid_setid _((char *)); |
a0d0e21e | 39 | static void incpush _((char *)); |
748a9306 | 40 | static void init_ids _((void)); |
a0d0e21e LW |
41 | static void init_debugger _((void)); |
42 | static void init_lexer _((void)); | |
43 | static void init_main_stash _((void)); | |
44 | static void init_perllib _((void)); | |
45 | static void init_postdump_symbols _((int, char **, char **)); | |
46 | static void init_predump_symbols _((void)); | |
47 | static void init_stacks _((void)); | |
6e72f9df | 48 | static void nuke_stacks _((void)); |
a0d0e21e | 49 | static void open_script _((char *, bool, SV *)); |
ab821d7f | 50 | static void usage _((char *)); |
96436eeb | 51 | static void validate_suid _((char *, char*)); |
52 | ||
53 | static int fdscript = -1; | |
79072805 | 54 | |
93a17b20 | 55 | PerlInterpreter * |
79072805 LW |
56 | perl_alloc() |
57 | { | |
93a17b20 | 58 | PerlInterpreter *sv_interp; |
79072805 | 59 | |
8990e307 | 60 | curinterp = 0; |
93a17b20 | 61 | New(53, sv_interp, 1, PerlInterpreter); |
79072805 LW |
62 | return sv_interp; |
63 | } | |
64 | ||
65 | void | |
66 | perl_construct( sv_interp ) | |
93a17b20 | 67 | register PerlInterpreter *sv_interp; |
79072805 LW |
68 | { |
69 | if (!(curinterp = sv_interp)) | |
70 | return; | |
71 | ||
8990e307 | 72 | #ifdef MULTIPLICITY |
93a17b20 | 73 | Zero(sv_interp, 1, PerlInterpreter); |
8990e307 | 74 | #endif |
79072805 LW |
75 | |
76 | /* Init the real globals? */ | |
77 | if (!linestr) { | |
78 | linestr = NEWSV(65,80); | |
ed6116ce | 79 | sv_upgrade(linestr,SVt_PVIV); |
79072805 | 80 | |
6e72f9df | 81 | if (!SvREADONLY(&sv_undef)) { |
82 | SvREADONLY_on(&sv_undef); | |
79072805 | 83 | |
6e72f9df | 84 | sv_setpv(&sv_no,No); |
85 | SvNV(&sv_no); | |
86 | SvREADONLY_on(&sv_no); | |
79072805 | 87 | |
6e72f9df | 88 | sv_setpv(&sv_yes,Yes); |
89 | SvNV(&sv_yes); | |
90 | SvREADONLY_on(&sv_yes); | |
91 | } | |
79072805 | 92 | |
c07a80fd | 93 | nrs = newSVpv("\n", 1); |
94 | rs = SvREFCNT_inc(nrs); | |
95 | ||
79072805 LW |
96 | #ifdef MSDOS |
97 | /* | |
98 | * There is no way we can refer to them from Perl so close them to save | |
99 | * space. The other alternative would be to provide STDAUX and STDPRN | |
100 | * filehandles. | |
101 | */ | |
102 | (void)fclose(stdaux); | |
103 | (void)fclose(stdprn); | |
104 | #endif | |
105 | } | |
106 | ||
8990e307 | 107 | #ifdef MULTIPLICITY |
79072805 | 108 | chopset = " \n-"; |
463ee0b2 | 109 | copline = NOLINE; |
79072805 | 110 | curcop = &compiling; |
1a30305b | 111 | dbargs = 0; |
79072805 LW |
112 | dlmax = 128; |
113 | laststatval = -1; | |
114 | laststype = OP_STAT; | |
115 | maxscream = -1; | |
116 | maxsysfd = MAXSYSFD; | |
79072805 | 117 | rsfp = Nullfp; |
463ee0b2 | 118 | statname = Nullsv; |
79072805 | 119 | tmps_floor = -1; |
5f05dabc | 120 | perl_destruct_level = 1; |
79072805 LW |
121 | #endif |
122 | ||
748a9306 | 123 | init_ids(); |
a5f75d66 | 124 | |
36477c24 | 125 | SET_NUMERIC_STANDARD(); |
a5f75d66 | 126 | #if defined(SUBVERSION) && SUBVERSION > 0 |
e2666263 | 127 | sprintf(patchlevel, "%7.5f", (double) 5 |
128 | + ((double) PATCHLEVEL / (double) 1000) | |
129 | + ((double) SUBVERSION / (double) 100000)); | |
a5f75d66 | 130 | #else |
e2666263 | 131 | sprintf(patchlevel, "%5.3f", (double) 5 + |
132 | ((double) PATCHLEVEL / (double) 1000)); | |
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 LW |
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 LW |
143 | |
144 | init_stacks(); | |
145 | ENTER; | |
79072805 LW |
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 LW |
156 | if (!(curinterp = sv_interp)) |
157 | return; | |
748a9306 LW |
158 | |
159 | destruct_level = perl_destruct_level; | |
4633a7c4 LW |
160 | #ifdef DEBUGGING |
161 | { | |
162 | char *s; | |
5f05dabc | 163 | if (s = getenv("PERL_DESTRUCT_LEVEL")) { |
164 | int i = atoi(s); | |
165 | if (destruct_level < i) | |
166 | destruct_level = i; | |
167 | } | |
4633a7c4 LW |
168 | } |
169 | #endif | |
170 | ||
5f05dabc | 171 | /* unhook hooks which will soon be, or use, destroyed data */ |
172 | SvREFCNT_dec(warnhook); | |
173 | warnhook = Nullsv; | |
174 | SvREFCNT_dec(diehook); | |
175 | diehook = Nullsv; | |
176 | SvREFCNT_dec(parsehook); | |
177 | parsehook = Nullsv; | |
178 | ||
8990e307 | 179 | LEAVE; |
a0d0e21e LW |
180 | FREETMPS; |
181 | ||
6e72f9df | 182 | /* We must account for everything. First the syntax tree. */ |
183 | if (main_root) { | |
184 | curpad = AvARRAY(comppad); | |
185 | op_free(main_root); | |
186 | main_root = 0; | |
a0d0e21e LW |
187 | } |
188 | if (sv_objcount) { | |
189 | /* | |
190 | * Try to destruct global references. We do this first so that the | |
191 | * destructors and destructees still exist. Some sv's might remain. | |
192 | * Non-referenced objects are on their own. | |
193 | */ | |
194 | ||
195 | dirty = TRUE; | |
196 | sv_clean_objs(); | |
8990e307 LW |
197 | } |
198 | ||
a0d0e21e | 199 | if (destruct_level == 0){ |
8990e307 | 200 | |
a0d0e21e LW |
201 | DEBUG_P(debprofdump()); |
202 | ||
203 | /* The exit() function will do everything that needs doing. */ | |
204 | return; | |
205 | } | |
5dd60ef7 | 206 | |
5f05dabc | 207 | /* loosen bonds of global variables */ |
208 | ||
209 | setdefout(Nullgv); | |
210 | ||
211 | sv_free(nrs); | |
212 | nrs = Nullsv; | |
213 | ||
214 | sv_free(lastscream); | |
215 | lastscream = Nullsv; | |
216 | ||
217 | sv_free(statname); | |
218 | statname = Nullsv; | |
219 | statgv = Nullgv; | |
220 | laststatval = -1; | |
221 | ||
5618dfe8 CS |
222 | sv_free((SV*)beginav); |
223 | beginav = Nullav; | |
224 | sv_free((SV*)endav); | |
225 | endav = Nullav; | |
226 | ||
a0d0e21e | 227 | /* Prepare to destruct main symbol table. */ |
5f05dabc | 228 | |
a0d0e21e | 229 | hv = defstash; |
85e6fe83 | 230 | defstash = 0; |
a0d0e21e LW |
231 | SvREFCNT_dec(hv); |
232 | ||
233 | FREETMPS; | |
234 | if (destruct_level >= 2) { | |
235 | if (scopestack_ix != 0) | |
236 | warn("Unbalanced scopes: %d more ENTERs than LEAVEs\n", scopestack_ix); | |
237 | if (savestack_ix != 0) | |
238 | warn("Unbalanced saves: %d more saves than restores\n", savestack_ix); | |
239 | if (tmps_floor != -1) | |
240 | warn("Unbalanced tmps: %d more allocs than frees\n", tmps_floor + 1); | |
241 | if (cxstack_ix != -1) | |
242 | warn("Unbalanced context: %d more PUSHes than POPs\n", cxstack_ix + 1); | |
243 | } | |
8990e307 LW |
244 | |
245 | /* Now absolutely destruct everything, somehow or other, loops or no. */ | |
8990e307 | 246 | last_sv_count = 0; |
6e72f9df | 247 | SvFLAGS(strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
8990e307 LW |
248 | while (sv_count != 0 && sv_count != last_sv_count) { |
249 | last_sv_count = sv_count; | |
250 | sv_clean_all(); | |
251 | } | |
6e72f9df | 252 | SvFLAGS(strtab) &= ~SVTYPEMASK; |
253 | SvFLAGS(strtab) |= SVt_PVHV; | |
254 | ||
255 | /* Destruct the global string table. */ | |
256 | { | |
257 | /* Yell and reset the HeVAL() slots that are still holding refcounts, | |
258 | * so that sv_free() won't fail on them. | |
259 | */ | |
260 | I32 riter; | |
261 | I32 max; | |
262 | HE *hent; | |
263 | HE **array; | |
264 | ||
265 | riter = 0; | |
266 | max = HvMAX(strtab); | |
267 | array = HvARRAY(strtab); | |
268 | hent = array[0]; | |
269 | for (;;) { | |
270 | if (hent) { | |
271 | warn("Unbalanced string table refcount: (%d) for \"%s\"", | |
272 | HeVAL(hent) - Nullsv, HeKEY(hent)); | |
273 | HeVAL(hent) = Nullsv; | |
274 | hent = HeNEXT(hent); | |
275 | } | |
276 | if (!hent) { | |
277 | if (++riter > max) | |
278 | break; | |
279 | hent = array[riter]; | |
280 | } | |
281 | } | |
282 | } | |
283 | SvREFCNT_dec(strtab); | |
284 | ||
8990e307 LW |
285 | if (sv_count != 0) |
286 | warn("Scalars leaked: %d\n", sv_count); | |
6e72f9df | 287 | |
4633a7c4 | 288 | sv_free_arenas(); |
a0d0e21e | 289 | |
6e72f9df | 290 | linestr = NULL; /* No SVs have survived, need to clean out */ |
291 | if (origfilename) | |
292 | Safefree(origfilename); | |
293 | nuke_stacks(); | |
294 | hints = 0; /* Reset hints. Should hints be per-interpreter ? */ | |
295 | ||
a0d0e21e | 296 | DEBUG_P(debprofdump()); |
79072805 LW |
297 | } |
298 | ||
299 | void | |
300 | perl_free(sv_interp) | |
93a17b20 | 301 | PerlInterpreter *sv_interp; |
79072805 LW |
302 | { |
303 | if (!(curinterp = sv_interp)) | |
304 | return; | |
305 | Safefree(sv_interp); | |
306 | } | |
ecfc5424 | 307 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) |
a0d0e21e LW |
308 | char *getenv _((char *)); /* Usually in <stdlib.h> */ |
309 | #endif | |
79072805 LW |
310 | |
311 | int | |
a0d0e21e | 312 | perl_parse(sv_interp, xsinit, argc, argv, env) |
93a17b20 | 313 | PerlInterpreter *sv_interp; |
a0d0e21e LW |
314 | void (*xsinit)_((void)); |
315 | int argc; | |
316 | char **argv; | |
79072805 | 317 | char **env; |
8d063cd8 | 318 | { |
79072805 | 319 | register SV *sv; |
8d063cd8 | 320 | register char *s; |
1a30305b | 321 | char *scriptname = NULL; |
a0d0e21e | 322 | VOL bool dosearch = FALSE; |
13281fa4 | 323 | char *validarg = ""; |
748a9306 | 324 | AV* comppadlist; |
8d063cd8 | 325 | |
a687059c LW |
326 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
327 | #ifdef IAMSUID | |
328 | #undef IAMSUID | |
463ee0b2 | 329 | croak("suidperl is no longer needed since the kernel can now execute\n\ |
a687059c LW |
330 | setuid perl scripts securely.\n"); |
331 | #endif | |
332 | #endif | |
333 | ||
79072805 LW |
334 | if (!(curinterp = sv_interp)) |
335 | return 255; | |
336 | ||
6e72f9df | 337 | #if defined(NeXT) && defined(__DYNAMIC__) |
338 | _dyld_lookup_and_bind | |
339 | ("__environ", (unsigned long *) &environ_pointer, NULL); | |
340 | #endif /* environ */ | |
341 | ||
ac58e20f LW |
342 | origargv = argv; |
343 | origargc = argc; | |
a0d0e21e | 344 | #ifndef VMS /* VMS doesn't have environ array */ |
fe14fcc3 | 345 | origenviron = environ; |
a0d0e21e | 346 | #endif |
ab821d7f | 347 | e_tmpname = Nullch; |
a0d0e21e LW |
348 | |
349 | if (do_undump) { | |
350 | ||
351 | /* Come here if running an undumped a.out. */ | |
352 | ||
353 | origfilename = savepv(argv[0]); | |
354 | do_undump = FALSE; | |
355 | cxstack_ix = -1; /* start label stack again */ | |
748a9306 | 356 | init_ids(); |
a0d0e21e LW |
357 | init_postdump_symbols(argc,argv,env); |
358 | return 0; | |
359 | } | |
360 | ||
361 | if (main_root) | |
362 | op_free(main_root); | |
363 | main_root = 0; | |
79072805 | 364 | |
a5f75d66 | 365 | switch (Sigsetjmp(top_env,1)) { |
79072805 | 366 | case 1: |
748a9306 | 367 | #ifdef VMS |
79072805 | 368 | statusvalue = 255; |
748a9306 LW |
369 | #else |
370 | statusvalue = 1; | |
371 | #endif | |
79072805 | 372 | case 2: |
8990e307 LW |
373 | curstash = defstash; |
374 | if (endav) | |
375 | calllist(endav); | |
79072805 LW |
376 | return(statusvalue); /* my_exit() was called */ |
377 | case 3: | |
760ac839 | 378 | PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); |
8990e307 | 379 | return 1; |
79072805 LW |
380 | } |
381 | ||
79072805 LW |
382 | sv_setpvn(linestr,"",0); |
383 | sv = newSVpv("",0); /* first used for -I flags */ | |
8990e307 | 384 | SAVEFREESV(sv); |
79072805 | 385 | init_main_stash(); |
33b78306 | 386 | for (argc--,argv++; argc > 0; argc--,argv++) { |
8d063cd8 LW |
387 | if (argv[0][0] != '-' || !argv[0][1]) |
388 | break; | |
13281fa4 LW |
389 | #ifdef DOSUID |
390 | if (*validarg) | |
391 | validarg = " PHOOEY "; | |
392 | else | |
393 | validarg = argv[0]; | |
394 | #endif | |
395 | s = argv[0]+1; | |
8d063cd8 | 396 | reswitch: |
13281fa4 | 397 | switch (*s) { |
27e2fb84 | 398 | case '0': |
2304df62 | 399 | case 'F': |
378cc40b | 400 | case 'a': |
33b78306 | 401 | case 'c': |
a687059c | 402 | case 'd': |
8d063cd8 | 403 | case 'D': |
4633a7c4 | 404 | case 'h': |
33b78306 | 405 | case 'i': |
fe14fcc3 | 406 | case 'l': |
1a30305b | 407 | case 'M': |
408 | case 'm': | |
33b78306 LW |
409 | case 'n': |
410 | case 'p': | |
79072805 | 411 | case 's': |
463ee0b2 | 412 | case 'T': |
33b78306 LW |
413 | case 'u': |
414 | case 'U': | |
415 | case 'v': | |
416 | case 'w': | |
417 | if (s = moreswitches(s)) | |
418 | goto reswitch; | |
8d063cd8 | 419 | break; |
33b78306 | 420 | |
8d063cd8 | 421 | case 'e': |
a687059c | 422 | if (euid != uid || egid != gid) |
463ee0b2 | 423 | croak("No -e allowed in setuid scripts"); |
8d063cd8 | 424 | if (!e_fp) { |
a0d0e21e | 425 | e_tmpname = savepv(TMPPATH); |
a687059c | 426 | (void)mktemp(e_tmpname); |
83025b21 | 427 | if (!*e_tmpname) |
463ee0b2 | 428 | croak("Can't mktemp()"); |
760ac839 | 429 | e_fp = PerlIO_open(e_tmpname,"w"); |
33b78306 | 430 | if (!e_fp) |
463ee0b2 | 431 | croak("Cannot open temporary file"); |
8d063cd8 | 432 | } |
552a7a9b | 433 | if (*++s) |
434 | PerlIO_puts(e_fp,s); | |
435 | else if (argv[1]) { | |
760ac839 | 436 | PerlIO_puts(e_fp,argv[1]); |
33b78306 LW |
437 | argc--,argv++; |
438 | } | |
552a7a9b | 439 | else |
440 | croak("No code specified for -e"); | |
760ac839 | 441 | (void)PerlIO_putc(e_fp,'\n'); |
8d063cd8 LW |
442 | break; |
443 | case 'I': | |
bbce6d69 | 444 | forbid_setid("-I"); |
79072805 LW |
445 | sv_catpv(sv,"-"); |
446 | sv_catpv(sv,s); | |
447 | sv_catpv(sv," "); | |
a687059c | 448 | if (*++s) { |
a0d0e21e | 449 | av_push(GvAVn(incgv),newSVpv(s,0)); |
378cc40b | 450 | } |
33b78306 | 451 | else if (argv[1]) { |
a0d0e21e | 452 | av_push(GvAVn(incgv),newSVpv(argv[1],0)); |
79072805 | 453 | sv_catpv(sv,argv[1]); |
8d063cd8 | 454 | argc--,argv++; |
79072805 | 455 | sv_catpv(sv," "); |
8d063cd8 LW |
456 | } |
457 | break; | |
8d063cd8 | 458 | case 'P': |
bbce6d69 | 459 | forbid_setid("-P"); |
8d063cd8 | 460 | preprocess = TRUE; |
13281fa4 | 461 | s++; |
8d063cd8 | 462 | goto reswitch; |
378cc40b | 463 | case 'S': |
bbce6d69 | 464 | forbid_setid("-S"); |
378cc40b | 465 | dosearch = TRUE; |
13281fa4 | 466 | s++; |
378cc40b | 467 | goto reswitch; |
1a30305b | 468 | case 'V': |
469 | if (!preambleav) | |
470 | preambleav = newAV(); | |
471 | av_push(preambleav, newSVpv("use Config qw(myconfig config_vars)",0)); | |
472 | if (*++s != ':') { | |
6e72f9df | 473 | Sv = newSVpv("print myconfig();",0); |
474 | #ifdef VMS | |
475 | sv_catpv(Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\","); | |
476 | #else | |
477 | sv_catpv(Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\","); | |
478 | #endif | |
479 | #if defined(DEBUGGING) || defined(NOEMBED) || defined(MULTIPLICITY) | |
480 | strcpy(buf,"\" Compile-time options:"); | |
481 | # ifdef DEBUGGING | |
482 | strcat(buf," DEBUGGING"); | |
483 | # endif | |
484 | # ifdef NOEMBED | |
485 | strcat(buf," NOEMBED"); | |
486 | # endif | |
487 | # ifdef MULTIPLICITY | |
488 | strcat(buf," MULTIPLICITY"); | |
489 | # endif | |
490 | strcat(buf,"\\n\","); | |
491 | sv_catpv(Sv,buf); | |
492 | #endif | |
493 | #if defined(LOCAL_PATCH_COUNT) | |
494 | if (LOCAL_PATCH_COUNT > 0) | |
495 | { int i; | |
496 | sv_catpv(Sv,"print \" Locally applied patches:\\n\","); | |
497 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { | |
498 | if (localpatches[i]) { | |
499 | sprintf(buf,"\" \\t%s\\n\",",localpatches[i]); | |
500 | sv_catpv(Sv,buf); | |
501 | } | |
502 | } | |
503 | } | |
504 | #endif | |
505 | sprintf(buf,"\" Built under %s\\n\",",OSNAME); | |
506 | sv_catpv(Sv,buf); | |
507 | #ifdef __DATE__ | |
508 | # ifdef __TIME__ | |
509 | sprintf(buf,"\" Compiled at %s %s\\n\"",__DATE__,__TIME__); | |
510 | # else | |
511 | sprintf(buf,"\" Compiled on %s\\n\"",__DATE__); | |
512 | # endif | |
513 | sv_catpv(Sv,buf); | |
514 | #endif | |
515 | sv_catpv(Sv,"; $\"=\"\\n \"; print \" \\@INC:\\n @INC\\n\""); | |
1a30305b | 516 | } |
517 | else { | |
518 | Sv = newSVpv("config_vars(qw(",0); | |
519 | sv_catpv(Sv, ++s); | |
520 | sv_catpv(Sv, "))"); | |
521 | s += strlen(s); | |
522 | } | |
523 | av_push(preambleav, Sv); | |
c07a80fd | 524 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
1a30305b | 525 | goto reswitch; |
33b78306 LW |
526 | case 'x': |
527 | doextract = TRUE; | |
13281fa4 | 528 | s++; |
33b78306 | 529 | if (*s) |
a0d0e21e | 530 | cddir = savepv(s); |
33b78306 | 531 | break; |
8d063cd8 LW |
532 | case '-': |
533 | argc--,argv++; | |
534 | goto switch_end; | |
535 | case 0: | |
536 | break; | |
537 | default: | |
463ee0b2 | 538 | croak("Unrecognized switch: -%s",s); |
8d063cd8 LW |
539 | } |
540 | } | |
541 | switch_end: | |
1a30305b | 542 | if (!scriptname) |
543 | scriptname = argv[0]; | |
8d063cd8 | 544 | if (e_fp) { |
760ac839 | 545 | if (PerlIO_flush(e_fp) || PerlIO_error(e_fp) || PerlIO_close(e_fp)) |
2304df62 | 546 | croak("Can't write to temp file for -e: %s", Strerror(errno)); |
ab821d7f | 547 | e_fp = Nullfp; |
8d063cd8 | 548 | argc++,argv--; |
45d8adaa | 549 | scriptname = e_tmpname; |
8d063cd8 | 550 | } |
79072805 LW |
551 | else if (scriptname == Nullch) { |
552 | #ifdef MSDOS | |
760ac839 | 553 | if ( isatty(PerlIO_fileno(PerlIO_stdin())) ) |
55497cff | 554 | moreswitches("h"); |
fe14fcc3 | 555 | #endif |
79072805 LW |
556 | scriptname = "-"; |
557 | } | |
fe14fcc3 | 558 | |
79072805 | 559 | init_perllib(); |
8d063cd8 | 560 | |
79072805 | 561 | open_script(scriptname,dosearch,sv); |
8d063cd8 | 562 | |
96436eeb | 563 | validate_suid(validarg, scriptname); |
378cc40b | 564 | |
79072805 LW |
565 | if (doextract) |
566 | find_beginning(); | |
567 | ||
748a9306 LW |
568 | compcv = (CV*)NEWSV(1104,0); |
569 | sv_upgrade((SV *)compcv, SVt_PVCV); | |
07055b4c | 570 | CvUNIQUE_on(compcv); |
748a9306 | 571 | |
6e72f9df | 572 | comppad = newAV(); |
79072805 LW |
573 | av_push(comppad, Nullsv); |
574 | curpad = AvARRAY(comppad); | |
6e72f9df | 575 | comppad_name = newAV(); |
8990e307 LW |
576 | comppad_name_fill = 0; |
577 | min_intro_pending = 0; | |
79072805 LW |
578 | padix = 0; |
579 | ||
748a9306 LW |
580 | comppadlist = newAV(); |
581 | AvREAL_off(comppadlist); | |
8e07c86e AD |
582 | av_store(comppadlist, 0, (SV*)comppad_name); |
583 | av_store(comppadlist, 1, (SV*)comppad); | |
748a9306 LW |
584 | CvPADLIST(compcv) = comppadlist; |
585 | ||
6e72f9df | 586 | boot_core_UNIVERSAL(); |
a0d0e21e LW |
587 | if (xsinit) |
588 | (*xsinit)(); /* in case linked C routines want magical variables */ | |
748a9306 LW |
589 | #ifdef VMS |
590 | init_os_extras(); | |
591 | #endif | |
93a17b20 | 592 | |
93a17b20 | 593 | init_predump_symbols(); |
8990e307 LW |
594 | if (!do_undump) |
595 | init_postdump_symbols(argc,argv,env); | |
93a17b20 | 596 | |
79072805 LW |
597 | init_lexer(); |
598 | ||
599 | /* now parse the script */ | |
600 | ||
601 | error_count = 0; | |
602 | if (yyparse() || error_count) { | |
603 | if (minus_c) | |
463ee0b2 | 604 | croak("%s had compilation errors.\n", origfilename); |
79072805 | 605 | else { |
463ee0b2 | 606 | croak("Execution of %s aborted due to compilation errors.\n", |
79072805 | 607 | origfilename); |
378cc40b | 608 | } |
79072805 LW |
609 | } |
610 | curcop->cop_line = 0; | |
611 | curstash = defstash; | |
612 | preprocess = FALSE; | |
ab821d7f | 613 | if (e_tmpname) { |
79072805 | 614 | (void)UNLINK(e_tmpname); |
ab821d7f | 615 | Safefree(e_tmpname); |
616 | e_tmpname = Nullch; | |
378cc40b | 617 | } |
a687059c | 618 | |
93a17b20 | 619 | /* now that script is parsed, we can modify record separator */ |
c07a80fd | 620 | SvREFCNT_dec(rs); |
621 | rs = SvREFCNT_inc(nrs); | |
622 | sv_setsv(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), rs); | |
45d8adaa | 623 | |
79072805 LW |
624 | if (do_undump) |
625 | my_unexec(); | |
626 | ||
8990e307 LW |
627 | if (dowarn) |
628 | gv_check(defstash); | |
629 | ||
a0d0e21e LW |
630 | LEAVE; |
631 | FREETMPS; | |
c07a80fd | 632 | |
633 | #ifdef DEBUGGING_MSTATS | |
634 | if ((s=getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) | |
635 | dump_mstats("after compilation:"); | |
636 | #endif | |
637 | ||
a0d0e21e LW |
638 | ENTER; |
639 | restartop = 0; | |
79072805 LW |
640 | return 0; |
641 | } | |
642 | ||
643 | int | |
644 | perl_run(sv_interp) | |
93a17b20 | 645 | PerlInterpreter *sv_interp; |
79072805 LW |
646 | { |
647 | if (!(curinterp = sv_interp)) | |
648 | return 255; | |
a5f75d66 | 649 | switch (Sigsetjmp(top_env,1)) { |
79072805 LW |
650 | case 1: |
651 | cxstack_ix = -1; /* start context stack again */ | |
652 | break; | |
653 | case 2: | |
654 | curstash = defstash; | |
93a17b20 LW |
655 | if (endav) |
656 | calllist(endav); | |
a0d0e21e | 657 | FREETMPS; |
c07a80fd | 658 | #ifdef DEBUGGING_MSTATS |
659 | if (getenv("PERL_DEBUG_MSTATS")) | |
660 | dump_mstats("after execution: "); | |
661 | #endif | |
93a17b20 | 662 | return(statusvalue); /* my_exit() was called */ |
79072805 LW |
663 | case 3: |
664 | if (!restartop) { | |
760ac839 | 665 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e | 666 | FREETMPS; |
8990e307 | 667 | return 1; |
83025b21 | 668 | } |
6e72f9df | 669 | if (curstack != mainstack) { |
79072805 | 670 | dSP; |
6e72f9df | 671 | SWITCHSTACK(curstack, mainstack); |
79072805 LW |
672 | } |
673 | break; | |
8d063cd8 | 674 | } |
79072805 | 675 | |
760ac839 | 676 | DEBUG_r(PerlIO_printf(PerlIO_stderr(), "%s $` $& $' support.\n", |
6e72f9df | 677 | sawampersand ? "Enabling" : "Omitting")); |
678 | ||
79072805 LW |
679 | if (!restartop) { |
680 | DEBUG_x(dump_all()); | |
760ac839 | 681 | DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); |
79072805 LW |
682 | |
683 | if (minus_c) { | |
760ac839 | 684 | PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", origfilename); |
79072805 LW |
685 | my_exit(0); |
686 | } | |
a0d0e21e LW |
687 | if (perldb && DBsingle) |
688 | sv_setiv(DBsingle, 1); | |
45d8adaa | 689 | } |
79072805 LW |
690 | |
691 | /* do it */ | |
692 | ||
693 | if (restartop) { | |
694 | op = restartop; | |
695 | restartop = 0; | |
ab821d7f | 696 | runops(); |
79072805 LW |
697 | } |
698 | else if (main_start) { | |
699 | op = main_start; | |
ab821d7f | 700 | runops(); |
79072805 | 701 | } |
79072805 LW |
702 | |
703 | my_exit(0); | |
a0d0e21e | 704 | return 0; |
79072805 LW |
705 | } |
706 | ||
707 | void | |
708 | my_exit(status) | |
748a9306 | 709 | U32 status; |
79072805 | 710 | { |
a0d0e21e LW |
711 | register CONTEXT *cx; |
712 | I32 gimme; | |
713 | SV **newsp; | |
714 | ||
748a9306 | 715 | statusvalue = FIXSTATUS(status); |
a0d0e21e LW |
716 | if (cxstack_ix >= 0) { |
717 | if (cxstack_ix > 0) | |
718 | dounwind(0); | |
719 | POPBLOCK(cx,curpm); | |
720 | LEAVE; | |
721 | } | |
a5f75d66 | 722 | Siglongjmp(top_env, 2); |
79072805 LW |
723 | } |
724 | ||
a0d0e21e LW |
725 | SV* |
726 | perl_get_sv(name, create) | |
727 | char* name; | |
728 | I32 create; | |
729 | { | |
730 | GV* gv = gv_fetchpv(name, create, SVt_PV); | |
731 | if (gv) | |
732 | return GvSV(gv); | |
733 | return Nullsv; | |
734 | } | |
735 | ||
736 | AV* | |
737 | perl_get_av(name, create) | |
738 | char* name; | |
739 | I32 create; | |
740 | { | |
741 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); | |
742 | if (create) | |
743 | return GvAVn(gv); | |
744 | if (gv) | |
745 | return GvAV(gv); | |
746 | return Nullav; | |
747 | } | |
748 | ||
749 | HV* | |
750 | perl_get_hv(name, create) | |
751 | char* name; | |
752 | I32 create; | |
753 | { | |
754 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); | |
755 | if (create) | |
756 | return GvHVn(gv); | |
757 | if (gv) | |
758 | return GvHV(gv); | |
759 | return Nullhv; | |
760 | } | |
761 | ||
762 | CV* | |
763 | perl_get_cv(name, create) | |
764 | char* name; | |
765 | I32 create; | |
766 | { | |
767 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); | |
768 | if (create && !GvCV(gv)) | |
769 | return newSUB(start_subparse(), | |
770 | newSVOP(OP_CONST, 0, newSVpv(name,0)), | |
4633a7c4 | 771 | Nullop, |
a0d0e21e LW |
772 | Nullop); |
773 | if (gv) | |
774 | return GvCV(gv); | |
775 | return Nullcv; | |
776 | } | |
777 | ||
79072805 LW |
778 | /* Be sure to refetch the stack pointer after calling these routines. */ |
779 | ||
a0d0e21e LW |
780 | I32 |
781 | perl_call_argv(subname, flags, argv) | |
8990e307 | 782 | char *subname; |
a0d0e21e LW |
783 | I32 flags; /* See G_* flags in cop.h */ |
784 | register char **argv; /* null terminated arg list */ | |
8990e307 | 785 | { |
a0d0e21e | 786 | dSP; |
8990e307 | 787 | |
a0d0e21e LW |
788 | PUSHMARK(sp); |
789 | if (argv) { | |
8990e307 | 790 | while (*argv) { |
a0d0e21e | 791 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 LW |
792 | argv++; |
793 | } | |
a0d0e21e | 794 | PUTBACK; |
8990e307 | 795 | } |
a0d0e21e | 796 | return perl_call_pv(subname, flags); |
8990e307 LW |
797 | } |
798 | ||
a0d0e21e LW |
799 | I32 |
800 | perl_call_pv(subname, flags) | |
801 | char *subname; /* name of the subroutine */ | |
802 | I32 flags; /* See G_* flags in cop.h */ | |
803 | { | |
804 | return perl_call_sv((SV*)perl_get_cv(subname, TRUE), flags); | |
805 | } | |
806 | ||
807 | I32 | |
808 | perl_call_method(methname, flags) | |
809 | char *methname; /* name of the subroutine */ | |
810 | I32 flags; /* See G_* flags in cop.h */ | |
811 | { | |
812 | dSP; | |
813 | OP myop; | |
814 | if (!op) | |
815 | op = &myop; | |
816 | XPUSHs(sv_2mortal(newSVpv(methname,0))); | |
817 | PUTBACK; | |
818 | pp_method(); | |
819 | return perl_call_sv(*stack_sp--, flags); | |
820 | } | |
821 | ||
822 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
823 | I32 | |
824 | perl_call_sv(sv, flags) | |
825 | SV* sv; | |
826 | I32 flags; /* See G_* flags in cop.h */ | |
827 | { | |
828 | LOGOP myop; /* fake syntax tree node */ | |
829 | SV** sp = stack_sp; | |
830 | I32 oldmark = TOPMARK; | |
831 | I32 retval; | |
a5f75d66 | 832 | Sigjmp_buf oldtop; |
a0d0e21e | 833 | I32 oldscope; |
6e72f9df | 834 | static CV *DBcv; |
a0d0e21e LW |
835 | |
836 | if (flags & G_DISCARD) { | |
837 | ENTER; | |
838 | SAVETMPS; | |
839 | } | |
840 | ||
841 | SAVESPTR(op); | |
842 | op = (OP*)&myop; | |
843 | Zero(op, 1, LOGOP); | |
844 | EXTEND(stack_sp, 1); | |
845 | *++stack_sp = sv; | |
846 | oldscope = scopestack_ix; | |
847 | ||
848 | if (!(flags & G_NOARGS)) | |
849 | myop.op_flags = OPf_STACKED; | |
850 | myop.op_next = Nullop; | |
851 | myop.op_flags |= OPf_KNOW; | |
852 | if (flags & G_ARRAY) | |
853 | myop.op_flags |= OPf_LIST; | |
854 | ||
36477c24 | 855 | if (perldb && curstash != debstash |
856 | /* Handle first BEGIN of -d. */ | |
857 | && (DBcv || (DBcv = GvCV(DBsub))) | |
858 | /* Try harder, since this may have been a sighandler, thus | |
859 | * curstash may be meaningless. */ | |
860 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != debstash)) | |
6e72f9df | 861 | op->op_private |= OPpENTERSUB_DB; |
862 | ||
a0d0e21e | 863 | if (flags & G_EVAL) { |
a5f75d66 | 864 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
a0d0e21e LW |
865 | |
866 | cLOGOP->op_other = op; | |
867 | markstack_ptr--; | |
4633a7c4 LW |
868 | /* we're trying to emulate pp_entertry() here */ |
869 | { | |
870 | register CONTEXT *cx; | |
871 | I32 gimme = GIMME; | |
872 | ||
873 | ENTER; | |
874 | SAVETMPS; | |
875 | ||
876 | push_return(op->op_next); | |
877 | PUSHBLOCK(cx, CXt_EVAL, stack_sp); | |
878 | PUSHEVAL(cx, 0, 0); | |
879 | eval_root = op; /* Only needed so that goto works right. */ | |
880 | ||
881 | in_eval = 1; | |
882 | if (flags & G_KEEPERR) | |
883 | in_eval |= 4; | |
884 | else | |
885 | sv_setpv(GvSV(errgv),""); | |
886 | } | |
a0d0e21e LW |
887 | markstack_ptr++; |
888 | ||
889 | restart: | |
a5f75d66 | 890 | switch (Sigsetjmp(top_env,1)) { |
a0d0e21e LW |
891 | case 0: |
892 | break; | |
893 | case 1: | |
748a9306 | 894 | #ifdef VMS |
a0d0e21e | 895 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 LW |
896 | #else |
897 | statusvalue = 1; | |
898 | #endif | |
a0d0e21e LW |
899 | /* FALL THROUGH */ |
900 | case 2: | |
901 | /* my_exit() was called */ | |
902 | curstash = defstash; | |
903 | FREETMPS; | |
a5f75d66 | 904 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
905 | if (statusvalue) |
906 | croak("Callback called exit"); | |
907 | my_exit(statusvalue); | |
908 | /* NOTREACHED */ | |
909 | case 3: | |
910 | if (restartop) { | |
911 | op = restartop; | |
912 | restartop = 0; | |
913 | goto restart; | |
914 | } | |
915 | stack_sp = stack_base + oldmark; | |
916 | if (flags & G_ARRAY) | |
917 | retval = 0; | |
918 | else { | |
919 | retval = 1; | |
920 | *++stack_sp = &sv_undef; | |
921 | } | |
922 | goto cleanup; | |
923 | } | |
924 | } | |
925 | ||
926 | if (op == (OP*)&myop) | |
927 | op = pp_entersub(); | |
928 | if (op) | |
ab821d7f | 929 | runops(); |
a0d0e21e | 930 | retval = stack_sp - (stack_base + oldmark); |
4633a7c4 LW |
931 | if ((flags & G_EVAL) && !(flags & G_KEEPERR)) |
932 | sv_setpv(GvSV(errgv),""); | |
a0d0e21e LW |
933 | |
934 | cleanup: | |
935 | if (flags & G_EVAL) { | |
936 | if (scopestack_ix > oldscope) { | |
a0a2876f LW |
937 | SV **newsp; |
938 | PMOP *newpm; | |
939 | I32 gimme; | |
940 | register CONTEXT *cx; | |
941 | I32 optype; | |
942 | ||
943 | POPBLOCK(cx,newpm); | |
944 | POPEVAL(cx); | |
945 | pop_return(); | |
946 | curpm = newpm; | |
947 | LEAVE; | |
a0d0e21e | 948 | } |
a5f75d66 | 949 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
950 | } |
951 | if (flags & G_DISCARD) { | |
952 | stack_sp = stack_base + oldmark; | |
953 | retval = 0; | |
954 | FREETMPS; | |
955 | LEAVE; | |
956 | } | |
957 | return retval; | |
958 | } | |
959 | ||
6e72f9df | 960 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 | 961 | |
a0d0e21e | 962 | I32 |
4633a7c4 | 963 | perl_eval_sv(sv, flags) |
8990e307 | 964 | SV* sv; |
4633a7c4 | 965 | I32 flags; /* See G_* flags in cop.h */ |
a0d0e21e LW |
966 | { |
967 | UNOP myop; /* fake syntax tree node */ | |
4633a7c4 LW |
968 | SV** sp = stack_sp; |
969 | I32 oldmark = sp - stack_base; | |
970 | I32 retval; | |
a5f75d66 | 971 | Sigjmp_buf oldtop; |
4633a7c4 | 972 | I32 oldscope; |
79072805 | 973 | |
4633a7c4 LW |
974 | if (flags & G_DISCARD) { |
975 | ENTER; | |
976 | SAVETMPS; | |
977 | } | |
978 | ||
79072805 | 979 | SAVESPTR(op); |
79072805 | 980 | op = (OP*)&myop; |
a0d0e21e | 981 | Zero(op, 1, UNOP); |
4633a7c4 LW |
982 | EXTEND(stack_sp, 1); |
983 | *++stack_sp = sv; | |
984 | oldscope = scopestack_ix; | |
79072805 | 985 | |
4633a7c4 LW |
986 | if (!(flags & G_NOARGS)) |
987 | myop.op_flags = OPf_STACKED; | |
79072805 | 988 | myop.op_next = Nullop; |
6e72f9df | 989 | myop.op_type = OP_ENTEREVAL; |
4633a7c4 | 990 | myop.op_flags |= OPf_KNOW; |
6e72f9df | 991 | if (flags & G_KEEPERR) |
992 | myop.op_flags |= OPf_SPECIAL; | |
4633a7c4 | 993 | if (flags & G_ARRAY) |
6e72f9df | 994 | myop.op_flags |= OPf_LIST; |
79072805 | 995 | |
a5f75d66 | 996 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
4633a7c4 LW |
997 | |
998 | restart: | |
a5f75d66 | 999 | switch (Sigsetjmp(top_env,1)) { |
4633a7c4 LW |
1000 | case 0: |
1001 | break; | |
1002 | case 1: | |
1003 | #ifdef VMS | |
1004 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ | |
1005 | #else | |
1006 | statusvalue = 1; | |
1007 | #endif | |
1008 | /* FALL THROUGH */ | |
1009 | case 2: | |
1010 | /* my_exit() was called */ | |
1011 | curstash = defstash; | |
1012 | FREETMPS; | |
a5f75d66 | 1013 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
4633a7c4 LW |
1014 | if (statusvalue) |
1015 | croak("Callback called exit"); | |
1016 | my_exit(statusvalue); | |
1017 | /* NOTREACHED */ | |
1018 | case 3: | |
1019 | if (restartop) { | |
1020 | op = restartop; | |
1021 | restartop = 0; | |
1022 | goto restart; | |
1023 | } | |
1024 | stack_sp = stack_base + oldmark; | |
1025 | if (flags & G_ARRAY) | |
1026 | retval = 0; | |
1027 | else { | |
1028 | retval = 1; | |
1029 | *++stack_sp = &sv_undef; | |
1030 | } | |
1031 | goto cleanup; | |
1032 | } | |
1033 | ||
1034 | if (op == (OP*)&myop) | |
1035 | op = pp_entereval(); | |
1036 | if (op) | |
ab821d7f | 1037 | runops(); |
4633a7c4 | 1038 | retval = stack_sp - (stack_base + oldmark); |
6e72f9df | 1039 | if (!(flags & G_KEEPERR)) |
4633a7c4 LW |
1040 | sv_setpv(GvSV(errgv),""); |
1041 | ||
1042 | cleanup: | |
a5f75d66 | 1043 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
4633a7c4 LW |
1044 | if (flags & G_DISCARD) { |
1045 | stack_sp = stack_base + oldmark; | |
1046 | retval = 0; | |
1047 | FREETMPS; | |
1048 | LEAVE; | |
1049 | } | |
1050 | return retval; | |
1051 | } | |
1052 | ||
1053 | /* Require a module. */ | |
1054 | ||
1055 | void | |
1056 | perl_require_pv(pv) | |
1057 | char* pv; | |
1058 | { | |
1059 | SV* sv = sv_newmortal(); | |
1060 | sv_setpv(sv, "require '"); | |
1061 | sv_catpv(sv, pv); | |
1062 | sv_catpv(sv, "'"); | |
1063 | perl_eval_sv(sv, G_DISCARD); | |
79072805 LW |
1064 | } |
1065 | ||
79072805 | 1066 | void |
79072805 LW |
1067 | magicname(sym,name,namlen) |
1068 | char *sym; | |
1069 | char *name; | |
1070 | I32 namlen; | |
1071 | { | |
1072 | register GV *gv; | |
1073 | ||
85e6fe83 | 1074 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 LW |
1075 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
1076 | } | |
1077 | ||
748a9306 LW |
1078 | #if defined(DOSISH) |
1079 | # define PERLLIB_SEP ';' | |
79072805 | 1080 | #else |
232e078e AD |
1081 | # if defined(VMS) |
1082 | # define PERLLIB_SEP '|' | |
1083 | # else | |
748a9306 | 1084 | # define PERLLIB_SEP ':' |
232e078e | 1085 | # endif |
79072805 | 1086 | #endif |
760ac839 LW |
1087 | #ifndef PERLLIB_MANGLE |
1088 | # define PERLLIB_MANGLE(s,n) (s) | |
1089 | #endif | |
79072805 LW |
1090 | |
1091 | static void | |
1092 | incpush(p) | |
1093 | char *p; | |
1094 | { | |
1095 | char *s; | |
1096 | ||
1097 | if (!p) | |
1098 | return; | |
1099 | ||
1100 | /* Break at all separators */ | |
1101 | while (*p) { | |
1102 | /* First, skip any consecutive separators */ | |
1103 | while ( *p == PERLLIB_SEP ) { | |
1104 | /* Uncomment the next line for PATH semantics */ | |
a0d0e21e | 1105 | /* av_push(GvAVn(incgv), newSVpv(".", 1)); */ |
79072805 LW |
1106 | p++; |
1107 | } | |
93a17b20 | 1108 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { |
760ac839 LW |
1109 | av_push(GvAVn(incgv), newSVpv(PERLLIB_MANGLE(p, (STRLEN)(s - p)), |
1110 | (STRLEN)(s - p))); | |
79072805 LW |
1111 | p = s + 1; |
1112 | } else { | |
760ac839 | 1113 | av_push(GvAVn(incgv), newSVpv(PERLLIB_MANGLE(p, 0), 0)); |
79072805 LW |
1114 | break; |
1115 | } | |
1116 | } | |
1117 | } | |
1118 | ||
ab821d7f | 1119 | static void |
1a30305b | 1120 | usage(name) /* XXX move this out into a module ? */ |
4633a7c4 LW |
1121 | char *name; |
1122 | { | |
ab821d7f | 1123 | /* This message really ought to be max 23 lines. |
1124 | * Removed -h because the user already knows that opton. Others? */ | |
1125 | printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name); | |
4633a7c4 | 1126 | printf("\n -0[octal] specify record separator (\\0, if no argument)"); |
ab821d7f | 1127 | printf("\n -a autosplit mode with -n or -p (splits $_ into @F)"); |
4633a7c4 | 1128 | printf("\n -c check syntax only (runs BEGIN and END blocks)"); |
1a30305b | 1129 | printf("\n -d[:debugger] run scripts under debugger"); |
4633a7c4 | 1130 | printf("\n -D[number/list] set debugging flags (argument is a bit mask or flags)"); |
ab821d7f | 1131 | printf("\n -e 'command' one line of script. Several -e's allowed. Omit [programfile]."); |
1132 | printf("\n -F/pattern/ split() pattern for autosplit (-a). The //'s are optional."); | |
4633a7c4 | 1133 | printf("\n -i[extension] edit <> files in place (make backup if extension supplied)"); |
ab821d7f | 1134 | printf("\n -Idirectory specify @INC/#include directory (may be used more then once)"); |
4633a7c4 | 1135 | printf("\n -l[octal] enable line ending processing, specifies line teminator"); |
ab821d7f | 1136 | printf("\n -[mM][-]module.. executes `use/no module...' before executing your script."); |
4633a7c4 LW |
1137 | printf("\n -n assume 'while (<>) { ... }' loop arround your script"); |
1138 | printf("\n -p assume loop like -n but print line also like sed"); | |
1139 | printf("\n -P run script through C preprocessor before compilation"); | |
4633a7c4 LW |
1140 | printf("\n -s enable some switch parsing for switches after script name"); |
1141 | printf("\n -S look for the script using PATH environment variable"); | |
1142 | printf("\n -T turn on tainting checks"); | |
1143 | printf("\n -u dump core after parsing script"); | |
1144 | printf("\n -U allow unsafe operations"); | |
1145 | printf("\n -v print version number and patchlevel of perl"); | |
1a30305b | 1146 | printf("\n -V[:variable] print perl configuration information"); |
ab821d7f | 1147 | printf("\n -w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT."); |
4633a7c4 LW |
1148 | printf("\n -x[directory] strip off text before #!perl line and perhaps cd to directory\n"); |
1149 | } | |
1150 | ||
79072805 LW |
1151 | /* This routine handles any switches that can be given during run */ |
1152 | ||
1153 | char * | |
1154 | moreswitches(s) | |
1155 | char *s; | |
1156 | { | |
1157 | I32 numlen; | |
c07a80fd | 1158 | U32 rschar; |
79072805 LW |
1159 | |
1160 | switch (*s) { | |
1161 | case '0': | |
c07a80fd | 1162 | rschar = scan_oct(s, 4, &numlen); |
1163 | SvREFCNT_dec(nrs); | |
1164 | if (rschar & ~((U8)~0)) | |
1165 | nrs = &sv_undef; | |
1166 | else if (!rschar && numlen >= 2) | |
1167 | nrs = newSVpv("", 0); | |
1168 | else { | |
1169 | char ch = rschar; | |
1170 | nrs = newSVpv(&ch, 1); | |
79072805 LW |
1171 | } |
1172 | return s + numlen; | |
2304df62 AD |
1173 | case 'F': |
1174 | minus_F = TRUE; | |
a0d0e21e | 1175 | splitstr = savepv(s + 1); |
2304df62 AD |
1176 | s += strlen(s); |
1177 | return s; | |
79072805 LW |
1178 | case 'a': |
1179 | minus_a = TRUE; | |
1180 | s++; | |
1181 | return s; | |
1182 | case 'c': | |
1183 | minus_c = TRUE; | |
1184 | s++; | |
1185 | return s; | |
1186 | case 'd': | |
bbce6d69 | 1187 | forbid_setid("-d"); |
4633a7c4 | 1188 | s++; |
c07a80fd | 1189 | if (*s == ':' || *s == '=') { |
4633a7c4 LW |
1190 | sprintf(buf, "use Devel::%s;", ++s); |
1191 | s += strlen(s); | |
1192 | my_setenv("PERL5DB",buf); | |
1193 | } | |
a0d0e21e LW |
1194 | if (!perldb) { |
1195 | perldb = TRUE; | |
1196 | init_debugger(); | |
1197 | } | |
79072805 LW |
1198 | return s; |
1199 | case 'D': | |
1200 | #ifdef DEBUGGING | |
bbce6d69 | 1201 | forbid_setid("-D"); |
79072805 | 1202 | if (isALPHA(s[1])) { |
8990e307 | 1203 | static char debopts[] = "psltocPmfrxuLHXD"; |
79072805 LW |
1204 | char *d; |
1205 | ||
93a17b20 | 1206 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
79072805 LW |
1207 | debug |= 1 << (d - debopts); |
1208 | } | |
1209 | else { | |
1210 | debug = atoi(s+1); | |
1211 | for (s++; isDIGIT(*s); s++) ; | |
1212 | } | |
8990e307 | 1213 | debug |= 0x80000000; |
79072805 LW |
1214 | #else |
1215 | warn("Recompile perl with -DDEBUGGING to use -D switch\n"); | |
a0d0e21e | 1216 | for (s++; isALNUM(*s); s++) ; |
79072805 LW |
1217 | #endif |
1218 | /*SUPPRESS 530*/ | |
1219 | return s; | |
4633a7c4 LW |
1220 | case 'h': |
1221 | usage(origargv[0]); | |
1222 | exit(0); | |
79072805 LW |
1223 | case 'i': |
1224 | if (inplace) | |
1225 | Safefree(inplace); | |
a0d0e21e | 1226 | inplace = savepv(s+1); |
79072805 LW |
1227 | /*SUPPRESS 530*/ |
1228 | for (s = inplace; *s && !isSPACE(*s); s++) ; | |
1229 | *s = '\0'; | |
1230 | break; | |
1231 | case 'I': | |
bbce6d69 | 1232 | forbid_setid("-I"); |
79072805 | 1233 | if (*++s) { |
748a9306 LW |
1234 | char *e; |
1235 | for (e = s; *e && !isSPACE(*e); e++) ; | |
1236 | av_push(GvAVn(incgv),newSVpv(s,e-s)); | |
1237 | if (*e) | |
1238 | return e; | |
79072805 LW |
1239 | } |
1240 | else | |
463ee0b2 | 1241 | croak("No space allowed after -I"); |
79072805 LW |
1242 | break; |
1243 | case 'l': | |
1244 | minus_l = TRUE; | |
1245 | s++; | |
a0d0e21e LW |
1246 | if (ors) |
1247 | Safefree(ors); | |
79072805 | 1248 | if (isDIGIT(*s)) { |
a0d0e21e | 1249 | ors = savepv("\n"); |
79072805 LW |
1250 | orslen = 1; |
1251 | *ors = scan_oct(s, 3 + (*s == '0'), &numlen); | |
1252 | s += numlen; | |
1253 | } | |
1254 | else { | |
c07a80fd | 1255 | if (RsPARA(nrs)) { |
6e72f9df | 1256 | ors = "\n\n"; |
c07a80fd | 1257 | orslen = 2; |
1258 | } | |
1259 | else | |
1260 | ors = SvPV(nrs, orslen); | |
6e72f9df | 1261 | ors = savepvn(ors, orslen); |
79072805 LW |
1262 | } |
1263 | return s; | |
1a30305b | 1264 | case 'M': |
bbce6d69 | 1265 | forbid_setid("-M"); /* XXX ? */ |
1a30305b | 1266 | /* FALL THROUGH */ |
1267 | case 'm': | |
bbce6d69 | 1268 | forbid_setid("-m"); /* XXX ? */ |
1a30305b | 1269 | if (*++s) { |
a5f75d66 AD |
1270 | char *start; |
1271 | char *use = "use "; | |
1272 | /* -M-foo == 'no foo' */ | |
1273 | if (*s == '-') { use = "no "; ++s; } | |
1274 | Sv = newSVpv(use,0); | |
1275 | start = s; | |
1a30305b | 1276 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd | 1277 | while(isALNUM(*s) || *s==':') ++s; |
1278 | if (*s != '=') { | |
1279 | sv_catpv(Sv, start); | |
1280 | if (*(start-1) == 'm') { | |
1281 | if (*s != '\0') | |
1282 | croak("Can't use '%c' after -mname", *s); | |
1283 | sv_catpv( Sv, " ()"); | |
1284 | } | |
1285 | } else { | |
1286 | sv_catpvn(Sv, start, s-start); | |
a5f75d66 | 1287 | sv_catpv(Sv, " split(/,/,q{"); |
c07a80fd | 1288 | sv_catpv(Sv, ++s); |
a5f75d66 | 1289 | sv_catpv(Sv, "})"); |
c07a80fd | 1290 | } |
1a30305b | 1291 | s += strlen(s); |
c07a80fd | 1292 | if (preambleav == NULL) |
1293 | preambleav = newAV(); | |
1294 | av_push(preambleav, Sv); | |
1a30305b | 1295 | } |
1296 | else | |
1297 | croak("No space allowed after -%c", *(s-1)); | |
1298 | return s; | |
79072805 LW |
1299 | case 'n': |
1300 | minus_n = TRUE; | |
1301 | s++; | |
1302 | return s; | |
1303 | case 'p': | |
1304 | minus_p = TRUE; | |
1305 | s++; | |
1306 | return s; | |
1307 | case 's': | |
bbce6d69 | 1308 | forbid_setid("-s"); |
79072805 LW |
1309 | doswitches = TRUE; |
1310 | s++; | |
1311 | return s; | |
463ee0b2 LW |
1312 | case 'T': |
1313 | tainting = TRUE; | |
1314 | s++; | |
1315 | return s; | |
79072805 LW |
1316 | case 'u': |
1317 | do_undump = TRUE; | |
1318 | s++; | |
1319 | return s; | |
1320 | case 'U': | |
1321 | unsafe = TRUE; | |
1322 | s++; | |
1323 | return s; | |
1324 | case 'v': | |
a5f75d66 AD |
1325 | #if defined(SUBVERSION) && SUBVERSION > 0 |
1326 | printf("\nThis is perl, version 5.%03d_%02d", PATCHLEVEL, SUBVERSION); | |
1327 | #else | |
1328 | printf("\nThis is perl, version %s",patchlevel); | |
1329 | #endif | |
1a30305b | 1330 | |
760ac839 LW |
1331 | printf("\n\nCopyright 1987-1996, Larry Wall\n"); |
1332 | printf("\n\t+ suidperl security patch"); | |
79072805 | 1333 | #ifdef MSDOS |
55497cff | 1334 | printf("\n\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); |
1335 | #endif | |
1336 | #ifdef DJGPP | |
1337 | printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n"); | |
4633a7c4 | 1338 | #endif |
79072805 | 1339 | #ifdef OS2 |
5dd60ef7 | 1340 | printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" |
760ac839 | 1341 | "Version 5 port Copyright (c) 1994-1996, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 | 1342 | #endif |
79072805 | 1343 | #ifdef atarist |
760ac839 | 1344 | printf("atariST series port, ++jrb bammi@cadence.com\n"); |
79072805 | 1345 | #endif |
760ac839 | 1346 | printf("\n\ |
79072805 | 1347 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
760ac839 | 1348 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n"); |
79072805 LW |
1349 | exit(0); |
1350 | case 'w': | |
1351 | dowarn = TRUE; | |
1352 | s++; | |
1353 | return s; | |
a0d0e21e | 1354 | case '*': |
79072805 LW |
1355 | case ' ': |
1356 | if (s[1] == '-') /* Additional switches on #! line. */ | |
1357 | return s+2; | |
1358 | break; | |
a0d0e21e | 1359 | case '-': |
79072805 LW |
1360 | case 0: |
1361 | case '\n': | |
1362 | case '\t': | |
1363 | break; | |
a0d0e21e LW |
1364 | case 'P': |
1365 | if (preprocess) | |
1366 | return s+1; | |
1367 | /* FALL THROUGH */ | |
79072805 | 1368 | default: |
a0d0e21e | 1369 | croak("Can't emulate -%.1s on #! line",s); |
79072805 LW |
1370 | } |
1371 | return Nullch; | |
1372 | } | |
1373 | ||
1374 | /* compliments of Tom Christiansen */ | |
1375 | ||
1376 | /* unexec() can be found in the Gnu emacs distribution */ | |
1377 | ||
1378 | void | |
1379 | my_unexec() | |
1380 | { | |
1381 | #ifdef UNEXEC | |
1382 | int status; | |
1383 | extern int etext; | |
1384 | ||
1385 | sprintf (buf, "%s.perldump", origfilename); | |
1386 | sprintf (tokenbuf, "%s/perl", BIN); | |
1387 | ||
1388 | status = unexec(buf, tokenbuf, &etext, sbrk(0), 0); | |
1389 | if (status) | |
760ac839 | 1390 | PerlIO_printf(PerlIO_stderr(), "unexec of %s into %s failed!\n", tokenbuf, buf); |
a0d0e21e | 1391 | exit(status); |
79072805 | 1392 | #else |
a5f75d66 AD |
1393 | # ifdef VMS |
1394 | # include <lib$routines.h> | |
1395 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ | |
1396 | #else | |
79072805 LW |
1397 | ABORT(); /* for use with undump */ |
1398 | #endif | |
a5f75d66 | 1399 | #endif |
79072805 LW |
1400 | } |
1401 | ||
1402 | static void | |
1403 | init_main_stash() | |
1404 | { | |
463ee0b2 | 1405 | GV *gv; |
6e72f9df | 1406 | |
1407 | /* Note that strtab is a rather special HV. Assumptions are made | |
1408 | about not iterating on it, and not adding tie magic to it. | |
1409 | It is properly deallocated in perl_destruct() */ | |
1410 | strtab = newHV(); | |
1411 | HvSHAREKEYS_off(strtab); /* mandatory */ | |
1412 | Newz(506,((XPVHV*)SvANY(strtab))->xhv_array, | |
1413 | sizeof(HE*) * (((XPVHV*)SvANY(strtab))->xhv_max + 1), char); | |
1414 | ||
463ee0b2 | 1415 | curstash = defstash = newHV(); |
79072805 | 1416 | curstname = newSVpv("main",4); |
adbc6bb1 LW |
1417 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
1418 | SvREFCNT_dec(GvHV(gv)); | |
1419 | GvHV(gv) = (HV*)SvREFCNT_inc(defstash); | |
463ee0b2 | 1420 | SvREADONLY_on(gv); |
a0d0e21e | 1421 | HvNAME(defstash) = savepv("main"); |
85e6fe83 | 1422 | incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); |
a5f75d66 | 1423 | GvMULTI_on(incgv); |
a0d0e21e | 1424 | defgv = gv_fetchpv("_",TRUE, SVt_PVAV); |
4633a7c4 | 1425 | errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); |
a5f75d66 | 1426 | GvMULTI_on(errgv); |
552a7a9b | 1427 | sv_setpvn(GvSV(errgv), "", 0); |
8990e307 LW |
1428 | curstash = defstash; |
1429 | compiling.cop_stash = defstash; | |
adbc6bb1 | 1430 | debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); |
4633a7c4 LW |
1431 | /* We must init $/ before switches are processed. */ |
1432 | sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1); | |
79072805 LW |
1433 | } |
1434 | ||
a0d0e21e LW |
1435 | #ifdef CAN_PROTOTYPE |
1436 | static void | |
1437 | open_script(char *scriptname, bool dosearch, SV *sv) | |
1438 | #else | |
79072805 LW |
1439 | static void |
1440 | open_script(scriptname,dosearch,sv) | |
1441 | char *scriptname; | |
1442 | bool dosearch; | |
1443 | SV *sv; | |
a0d0e21e | 1444 | #endif |
79072805 LW |
1445 | { |
1446 | char *xfound = Nullch; | |
1447 | char *xfailed = Nullch; | |
1448 | register char *s; | |
1449 | I32 len; | |
a38d6535 LW |
1450 | int retval; |
1451 | #if defined(DOSISH) && !defined(OS2) && !defined(atarist) | |
1452 | #define SEARCH_EXTS ".bat", ".cmd", NULL | |
1453 | #endif | |
ab821d7f | 1454 | #ifdef VMS |
1455 | # define SEARCH_EXTS ".pl", ".com", NULL | |
1456 | #endif | |
a38d6535 LW |
1457 | /* additional extensions to try in each dir if scriptname not found */ |
1458 | #ifdef SEARCH_EXTS | |
1459 | char *ext[] = { SEARCH_EXTS }; | |
1460 | int extidx = (strchr(scriptname,'.')) ? -1 : 0; /* has ext already */ | |
1461 | #endif | |
79072805 | 1462 | |
c07a80fd | 1463 | #ifdef VMS |
6e72f9df | 1464 | if (dosearch) { |
1465 | int hasdir, idx = 0, deftypes = 1; | |
1466 | ||
1467 | hasdir = (strpbrk(scriptname,":[</") != Nullch) ; | |
1468 | /* The first time through, just add SEARCH_EXTS to whatever we | |
1469 | * already have, so we can check for default file types. */ | |
1470 | while (deftypes || (!hasdir && my_trnlnm("DCL$PATH",tokenbuf,idx++)) ) { | |
1471 | if (deftypes) { deftypes = 0; *tokenbuf = '\0'; } | |
c07a80fd | 1472 | strcat(tokenbuf,scriptname); |
1473 | #else /* !VMS */ | |
93a17b20 | 1474 | if (dosearch && !strchr(scriptname, '/') && (s = getenv("PATH"))) { |
79072805 LW |
1475 | |
1476 | bufend = s + strlen(s); | |
1477 | while (*s) { | |
1478 | #ifndef DOSISH | |
1479 | s = cpytill(tokenbuf,s,bufend,':',&len); | |
1480 | #else | |
1481 | #ifdef atarist | |
1482 | for (len = 0; *s && *s != ',' && *s != ';'; tokenbuf[len++] = *s++); | |
1483 | tokenbuf[len] = '\0'; | |
1484 | #else | |
1485 | for (len = 0; *s && *s != ';'; tokenbuf[len++] = *s++); | |
1486 | tokenbuf[len] = '\0'; | |
1487 | #endif | |
1488 | #endif | |
1489 | if (*s) | |
1490 | s++; | |
1491 | #ifndef DOSISH | |
1492 | if (len && tokenbuf[len-1] != '/') | |
1493 | #else | |
1494 | #ifdef atarist | |
1495 | if (len && ((tokenbuf[len-1] != '\\') && (tokenbuf[len-1] != '/'))) | |
1496 | #else | |
1497 | if (len && tokenbuf[len-1] != '\\') | |
1498 | #endif | |
1499 | #endif | |
1500 | (void)strcat(tokenbuf+len,"/"); | |
1501 | (void)strcat(tokenbuf+len,scriptname); | |
c07a80fd | 1502 | #endif /* !VMS */ |
a38d6535 LW |
1503 | |
1504 | #ifdef SEARCH_EXTS | |
1505 | len = strlen(tokenbuf); | |
1506 | if (extidx > 0) /* reset after previous loop */ | |
1507 | extidx = 0; | |
1508 | do { | |
1509 | #endif | |
760ac839 | 1510 | DEBUG_p(PerlIO_printf(Perl_debug_log, "Looking for %s\n",tokenbuf)); |
a38d6535 LW |
1511 | retval = Stat(tokenbuf,&statbuf); |
1512 | #ifdef SEARCH_EXTS | |
1513 | } while ( retval < 0 /* not there */ | |
1514 | && extidx>=0 && ext[extidx] /* try an extension? */ | |
1515 | && strcpy(tokenbuf+len, ext[extidx++]) | |
1516 | ); | |
1517 | #endif | |
1518 | if (retval < 0) | |
79072805 LW |
1519 | continue; |
1520 | if (S_ISREG(statbuf.st_mode) | |
1521 | && cando(S_IRUSR,TRUE,&statbuf) && cando(S_IXUSR,TRUE,&statbuf)) { | |
1522 | xfound = tokenbuf; /* bingo! */ | |
1523 | break; | |
1524 | } | |
1525 | if (!xfailed) | |
a0d0e21e | 1526 | xfailed = savepv(tokenbuf); |
79072805 LW |
1527 | } |
1528 | if (!xfound) | |
463ee0b2 | 1529 | croak("Can't execute %s", xfailed ? xfailed : scriptname ); |
79072805 LW |
1530 | if (xfailed) |
1531 | Safefree(xfailed); | |
1532 | scriptname = xfound; | |
1533 | } | |
1534 | ||
96436eeb | 1535 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { |
1536 | char *s = scriptname + 8; | |
1537 | fdscript = atoi(s); | |
1538 | while (isDIGIT(*s)) | |
1539 | s++; | |
1540 | if (*s) | |
1541 | scriptname = s + 1; | |
1542 | } | |
1543 | else | |
1544 | fdscript = -1; | |
ab821d7f | 1545 | origfilename = savepv(e_tmpname ? "-e" : scriptname); |
79072805 LW |
1546 | curcop->cop_filegv = gv_fetchfile(origfilename); |
1547 | if (strEQ(origfilename,"-")) | |
1548 | scriptname = ""; | |
96436eeb | 1549 | if (fdscript >= 0) { |
760ac839 | 1550 | rsfp = PerlIO_fdopen(fdscript,"r"); |
96436eeb | 1551 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
7aa04957 CS |
1552 | if (rsfp) |
1553 | fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ | |
96436eeb | 1554 | #endif |
1555 | } | |
1556 | else if (preprocess) { | |
79072805 LW |
1557 | char *cpp = CPPSTDIN; |
1558 | ||
1559 | if (strEQ(cpp,"cppstdin")) | |
1560 | sprintf(tokenbuf, "%s/%s", SCRIPTDIR, cpp); | |
1561 | else | |
1562 | sprintf(tokenbuf, "%s", cpp); | |
1563 | sv_catpv(sv,"-I"); | |
fed7345c | 1564 | sv_catpv(sv,PRIVLIB_EXP); |
79072805 LW |
1565 | #ifdef MSDOS |
1566 | (void)sprintf(buf, "\ | |
1567 | sed %s -e \"/^[^#]/b\" \ | |
1568 | -e \"/^#[ ]*include[ ]/b\" \ | |
1569 | -e \"/^#[ ]*define[ ]/b\" \ | |
1570 | -e \"/^#[ ]*if[ ]/b\" \ | |
1571 | -e \"/^#[ ]*ifdef[ ]/b\" \ | |
1572 | -e \"/^#[ ]*ifndef[ ]/b\" \ | |
1573 | -e \"/^#[ ]*else/b\" \ | |
1574 | -e \"/^#[ ]*elif[ ]/b\" \ | |
1575 | -e \"/^#[ ]*undef[ ]/b\" \ | |
1576 | -e \"/^#[ ]*endif/b\" \ | |
1577 | -e \"s/^#.*//\" \ | |
1578 | %s | %s -C %s %s", | |
1579 | (doextract ? "-e \"1,/^#/d\n\"" : ""), | |
1580 | #else | |
1581 | (void)sprintf(buf, "\ | |
1582 | %s %s -e '/^[^#]/b' \ | |
1583 | -e '/^#[ ]*include[ ]/b' \ | |
1584 | -e '/^#[ ]*define[ ]/b' \ | |
1585 | -e '/^#[ ]*if[ ]/b' \ | |
1586 | -e '/^#[ ]*ifdef[ ]/b' \ | |
1587 | -e '/^#[ ]*ifndef[ ]/b' \ | |
1588 | -e '/^#[ ]*else/b' \ | |
1589 | -e '/^#[ ]*elif[ ]/b' \ | |
1590 | -e '/^#[ ]*undef[ ]/b' \ | |
1591 | -e '/^#[ ]*endif/b' \ | |
1592 | -e 's/^[ ]*#.*//' \ | |
1593 | %s | %s -C %s %s", | |
1594 | #ifdef LOC_SED | |
1595 | LOC_SED, | |
1596 | #else | |
1597 | "sed", | |
1598 | #endif | |
1599 | (doextract ? "-e '1,/^#/d\n'" : ""), | |
1600 | #endif | |
463ee0b2 | 1601 | scriptname, tokenbuf, SvPV(sv, na), CPPMINUS); |
79072805 LW |
1602 | doextract = FALSE; |
1603 | #ifdef IAMSUID /* actually, this is caught earlier */ | |
1604 | if (euid != uid && !euid) { /* if running suidperl */ | |
1605 | #ifdef HAS_SETEUID | |
1606 | (void)seteuid(uid); /* musn't stay setuid root */ | |
1607 | #else | |
1608 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1609 | (void)setreuid((Uid_t)-1, uid); |
1610 | #else | |
1611 | #ifdef HAS_SETRESUID | |
1612 | (void)setresuid((Uid_t)-1, uid, (Uid_t)-1); | |
79072805 LW |
1613 | #else |
1614 | setuid(uid); | |
1615 | #endif | |
1616 | #endif | |
85e6fe83 | 1617 | #endif |
79072805 | 1618 | if (geteuid() != uid) |
463ee0b2 | 1619 | croak("Can't do seteuid!\n"); |
79072805 LW |
1620 | } |
1621 | #endif /* IAMSUID */ | |
1622 | rsfp = my_popen(buf,"r"); | |
1623 | } | |
1624 | else if (!*scriptname) { | |
bbce6d69 | 1625 | forbid_setid("program input from stdin"); |
760ac839 | 1626 | rsfp = PerlIO_stdin(); |
79072805 | 1627 | } |
96436eeb | 1628 | else { |
760ac839 | 1629 | rsfp = PerlIO_open(scriptname,"r"); |
96436eeb | 1630 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
7aa04957 CS |
1631 | if (rsfp) |
1632 | fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ | |
96436eeb | 1633 | #endif |
1634 | } | |
5dd60ef7 | 1635 | if (e_tmpname) { |
1636 | e_fp = rsfp; | |
1637 | } | |
7aa04957 | 1638 | if (!rsfp) { |
13281fa4 | 1639 | #ifdef DOSUID |
a687059c | 1640 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
a0d0e21e | 1641 | if (euid && Stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 && |
13281fa4 | 1642 | statbuf.st_mode & (S_ISUID|S_ISGID)) { |
27e2fb84 | 1643 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c | 1644 | execv(buf, origargv); /* try again */ |
463ee0b2 | 1645 | croak("Can't do setuid\n"); |
13281fa4 LW |
1646 | } |
1647 | #endif | |
1648 | #endif | |
463ee0b2 | 1649 | croak("Can't open perl script \"%s\": %s\n", |
2304df62 | 1650 | SvPVX(GvSV(curcop->cop_filegv)), Strerror(errno)); |
13281fa4 | 1651 | } |
79072805 | 1652 | } |
8d063cd8 | 1653 | |
79072805 | 1654 | static void |
96436eeb | 1655 | validate_suid(validarg, scriptname) |
79072805 | 1656 | char *validarg; |
96436eeb | 1657 | char *scriptname; |
79072805 | 1658 | { |
96436eeb | 1659 | int which; |
1660 | ||
13281fa4 LW |
1661 | /* do we need to emulate setuid on scripts? */ |
1662 | ||
1663 | /* This code is for those BSD systems that have setuid #! scripts disabled | |
1664 | * in the kernel because of a security problem. Merely defining DOSUID | |
1665 | * in perl will not fix that problem, but if you have disabled setuid | |
1666 | * scripts in the kernel, this will attempt to emulate setuid and setgid | |
1667 | * on scripts that have those now-otherwise-useless bits set. The setuid | |
27e2fb84 LW |
1668 | * root version must be called suidperl or sperlN.NNN. If regular perl |
1669 | * discovers that it has opened a setuid script, it calls suidperl with | |
1670 | * the same argv that it had. If suidperl finds that the script it has | |
1671 | * just opened is NOT setuid root, it sets the effective uid back to the | |
1672 | * uid. We don't just make perl setuid root because that loses the | |
1673 | * effective uid we had before invoking perl, if it was different from the | |
1674 | * uid. | |
13281fa4 LW |
1675 | * |
1676 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must | |
1677 | * be defined in suidperl only. suidperl must be setuid root. The | |
1678 | * Configure script will set this up for you if you want it. | |
1679 | */ | |
a687059c | 1680 | |
13281fa4 | 1681 | #ifdef DOSUID |
6e72f9df | 1682 | char *s, *s2; |
a0d0e21e | 1683 | |
760ac839 | 1684 | if (Fstat(PerlIO_fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */ |
463ee0b2 | 1685 | croak("Can't stat script \"%s\"",origfilename); |
96436eeb | 1686 | if (fdscript < 0 && statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 | 1687 | I32 len; |
13281fa4 | 1688 | |
a687059c | 1689 | #ifdef IAMSUID |
fe14fcc3 | 1690 | #ifndef HAS_SETREUID |
a687059c LW |
1691 | /* On this access check to make sure the directories are readable, |
1692 | * there is actually a small window that the user could use to make | |
1693 | * filename point to an accessible directory. So there is a faint | |
1694 | * chance that someone could execute a setuid script down in a | |
1695 | * non-accessible directory. I don't know what to do about that. | |
1696 | * But I don't think it's too important. The manual lies when | |
1697 | * it says access() is useful in setuid programs. | |
1698 | */ | |
463ee0b2 LW |
1699 | if (access(SvPVX(GvSV(curcop->cop_filegv)),1)) /*double check*/ |
1700 | croak("Permission denied"); | |
a687059c LW |
1701 | #else |
1702 | /* If we can swap euid and uid, then we can determine access rights | |
1703 | * with a simple stat of the file, and then compare device and | |
1704 | * inode to make sure we did stat() on the same file we opened. | |
1705 | * Then we just have to make sure he or she can execute it. | |
1706 | */ | |
1707 | { | |
1708 | struct stat tmpstatbuf; | |
1709 | ||
85e6fe83 LW |
1710 | if ( |
1711 | #ifdef HAS_SETREUID | |
1712 | setreuid(euid,uid) < 0 | |
a0d0e21e LW |
1713 | #else |
1714 | # if HAS_SETRESUID | |
85e6fe83 | 1715 | setresuid(euid,uid,(Uid_t)-1) < 0 |
a0d0e21e | 1716 | # endif |
85e6fe83 LW |
1717 | #endif |
1718 | || getuid() != euid || geteuid() != uid) | |
463ee0b2 | 1719 | croak("Can't swap uid and euid"); /* really paranoid */ |
a0d0e21e | 1720 | if (Stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0) |
463ee0b2 | 1721 | croak("Permission denied"); /* testing full pathname here */ |
a687059c LW |
1722 | if (tmpstatbuf.st_dev != statbuf.st_dev || |
1723 | tmpstatbuf.st_ino != statbuf.st_ino) { | |
760ac839 | 1724 | (void)PerlIO_close(rsfp); |
79072805 | 1725 | if (rsfp = my_popen("/bin/mail root","w")) { /* heh, heh */ |
760ac839 | 1726 | PerlIO_printf(rsfp, |
a687059c LW |
1727 | "User %d tried to run dev %d ino %d in place of dev %d ino %d!\n\ |
1728 | (Filename of set-id script was %s, uid %d gid %d.)\n\nSincerely,\nperl\n", | |
1729 | uid,tmpstatbuf.st_dev, tmpstatbuf.st_ino, | |
1730 | statbuf.st_dev, statbuf.st_ino, | |
463ee0b2 | 1731 | SvPVX(GvSV(curcop->cop_filegv)), |
20188a90 | 1732 | statbuf.st_uid, statbuf.st_gid); |
79072805 | 1733 | (void)my_pclose(rsfp); |
a687059c | 1734 | } |
463ee0b2 | 1735 | croak("Permission denied\n"); |
a687059c | 1736 | } |
85e6fe83 LW |
1737 | if ( |
1738 | #ifdef HAS_SETREUID | |
1739 | setreuid(uid,euid) < 0 | |
a0d0e21e LW |
1740 | #else |
1741 | # if defined(HAS_SETRESUID) | |
85e6fe83 | 1742 | setresuid(uid,euid,(Uid_t)-1) < 0 |
a0d0e21e | 1743 | # endif |
85e6fe83 LW |
1744 | #endif |
1745 | || getuid() != uid || geteuid() != euid) | |
463ee0b2 | 1746 | croak("Can't reswap uid and euid"); |
27e2fb84 | 1747 | if (!cando(S_IXUSR,FALSE,&statbuf)) /* can real uid exec? */ |
463ee0b2 | 1748 | croak("Permission denied\n"); |
a687059c | 1749 | } |
fe14fcc3 | 1750 | #endif /* HAS_SETREUID */ |
a687059c LW |
1751 | #endif /* IAMSUID */ |
1752 | ||
27e2fb84 | 1753 | if (!S_ISREG(statbuf.st_mode)) |
463ee0b2 | 1754 | croak("Permission denied"); |
27e2fb84 | 1755 | if (statbuf.st_mode & S_IWOTH) |
463ee0b2 | 1756 | croak("Setuid/gid script is writable by world"); |
13281fa4 | 1757 | doswitches = FALSE; /* -s is insecure in suid */ |
79072805 | 1758 | curcop->cop_line++; |
760ac839 LW |
1759 | if (sv_gets(linestr, rsfp, 0) == Nullch || |
1760 | strnNE(SvPV(linestr,na),"#!",2) ) /* required even on Sys V */ | |
463ee0b2 | 1761 | croak("No #! line"); |
760ac839 | 1762 | s = SvPV(linestr,na)+2; |
663a0e37 | 1763 | if (*s == ' ') s++; |
45d8adaa | 1764 | while (!isSPACE(*s)) s++; |
760ac839 | 1765 | for (s2 = s; (s2 > SvPV(linestr,na)+2 && |
6e72f9df | 1766 | (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ; |
1767 | if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ | |
463ee0b2 | 1768 | croak("Not a perl script"); |
a687059c | 1769 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 LW |
1770 | /* |
1771 | * #! arg must be what we saw above. They can invoke it by | |
1772 | * mentioning suidperl explicitly, but they may not add any strange | |
1773 | * arguments beyond what #! says if they do invoke suidperl that way. | |
1774 | */ | |
1775 | len = strlen(validarg); | |
1776 | if (strEQ(validarg," PHOOEY ") || | |
45d8adaa | 1777 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
463ee0b2 | 1778 | croak("Args must match #! line"); |
a687059c LW |
1779 | |
1780 | #ifndef IAMSUID | |
1781 | if (euid != uid && (statbuf.st_mode & S_ISUID) && | |
1782 | euid == statbuf.st_uid) | |
1783 | if (!do_undump) | |
463ee0b2 | 1784 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
1785 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1786 | #endif /* IAMSUID */ | |
13281fa4 LW |
1787 | |
1788 | if (euid) { /* oops, we're not the setuid root perl */ | |
760ac839 | 1789 | (void)PerlIO_close(rsfp); |
13281fa4 | 1790 | #ifndef IAMSUID |
27e2fb84 | 1791 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c | 1792 | execv(buf, origargv); /* try again */ |
13281fa4 | 1793 | #endif |
463ee0b2 | 1794 | croak("Can't do setuid\n"); |
13281fa4 LW |
1795 | } |
1796 | ||
83025b21 | 1797 | if (statbuf.st_mode & S_ISGID && statbuf.st_gid != egid) { |
fe14fcc3 | 1798 | #ifdef HAS_SETEGID |
a687059c LW |
1799 | (void)setegid(statbuf.st_gid); |
1800 | #else | |
fe14fcc3 | 1801 | #ifdef HAS_SETREGID |
85e6fe83 LW |
1802 | (void)setregid((Gid_t)-1,statbuf.st_gid); |
1803 | #else | |
1804 | #ifdef HAS_SETRESGID | |
1805 | (void)setresgid((Gid_t)-1,statbuf.st_gid,(Gid_t)-1); | |
a687059c LW |
1806 | #else |
1807 | setgid(statbuf.st_gid); | |
1808 | #endif | |
1809 | #endif | |
85e6fe83 | 1810 | #endif |
83025b21 | 1811 | if (getegid() != statbuf.st_gid) |
463ee0b2 | 1812 | croak("Can't do setegid!\n"); |
83025b21 | 1813 | } |
a687059c LW |
1814 | if (statbuf.st_mode & S_ISUID) { |
1815 | if (statbuf.st_uid != euid) | |
fe14fcc3 | 1816 | #ifdef HAS_SETEUID |
a687059c LW |
1817 | (void)seteuid(statbuf.st_uid); /* all that for this */ |
1818 | #else | |
fe14fcc3 | 1819 | #ifdef HAS_SETREUID |
85e6fe83 LW |
1820 | (void)setreuid((Uid_t)-1,statbuf.st_uid); |
1821 | #else | |
1822 | #ifdef HAS_SETRESUID | |
1823 | (void)setresuid((Uid_t)-1,statbuf.st_uid,(Uid_t)-1); | |
a687059c LW |
1824 | #else |
1825 | setuid(statbuf.st_uid); | |
1826 | #endif | |
1827 | #endif | |
85e6fe83 | 1828 | #endif |
83025b21 | 1829 | if (geteuid() != statbuf.st_uid) |
463ee0b2 | 1830 | croak("Can't do seteuid!\n"); |
a687059c | 1831 | } |
83025b21 | 1832 | else if (uid) { /* oops, mustn't run as root */ |
fe14fcc3 | 1833 | #ifdef HAS_SETEUID |
85e6fe83 | 1834 | (void)seteuid((Uid_t)uid); |
a687059c | 1835 | #else |
fe14fcc3 | 1836 | #ifdef HAS_SETREUID |
85e6fe83 | 1837 | (void)setreuid((Uid_t)-1,(Uid_t)uid); |
a687059c | 1838 | #else |
85e6fe83 LW |
1839 | #ifdef HAS_SETRESUID |
1840 | (void)setresuid((Uid_t)-1,(Uid_t)uid,(Uid_t)-1); | |
1841 | #else | |
1842 | setuid((Uid_t)uid); | |
1843 | #endif | |
a687059c LW |
1844 | #endif |
1845 | #endif | |
83025b21 | 1846 | if (geteuid() != uid) |
463ee0b2 | 1847 | croak("Can't do seteuid!\n"); |
83025b21 | 1848 | } |
748a9306 | 1849 | init_ids(); |
27e2fb84 | 1850 | if (!cando(S_IXUSR,TRUE,&statbuf)) |
463ee0b2 | 1851 | croak("Permission denied\n"); /* they can't do this */ |
13281fa4 LW |
1852 | } |
1853 | #ifdef IAMSUID | |
1854 | else if (preprocess) | |
463ee0b2 | 1855 | croak("-P not allowed for setuid/setgid script\n"); |
96436eeb | 1856 | else if (fdscript >= 0) |
1857 | croak("fd script not allowed in suidperl\n"); | |
13281fa4 | 1858 | else |
463ee0b2 | 1859 | croak("Script is not setuid/setgid in suidperl\n"); |
96436eeb | 1860 | |
1861 | /* We absolutely must clear out any saved ids here, so we */ | |
1862 | /* exec the real perl, substituting fd script for scriptname. */ | |
1863 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ | |
760ac839 LW |
1864 | PerlIO_rewind(rsfp); |
1865 | lseek(PerlIO_fileno(rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
96436eeb | 1866 | for (which = 1; origargv[which] && origargv[which] != scriptname; which++) ; |
1867 | if (!origargv[which]) | |
1868 | croak("Permission denied"); | |
760ac839 | 1869 | (void)sprintf(buf, "/dev/fd/%d/%.127s", PerlIO_fileno(rsfp), origargv[which]); |
96436eeb | 1870 | origargv[which] = buf; |
1871 | ||
1872 | #if defined(HAS_FCNTL) && defined(F_SETFD) | |
760ac839 | 1873 | fcntl(PerlIO_fileno(rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb | 1874 | #endif |
1875 | ||
1876 | (void)sprintf(tokenbuf, "%s/perl%s", BIN, patchlevel); | |
1877 | execv(tokenbuf, origargv); /* try again */ | |
1878 | croak("Can't do setuid\n"); | |
13281fa4 | 1879 | #endif /* IAMSUID */ |
a687059c | 1880 | #else /* !DOSUID */ |
a687059c LW |
1881 | if (euid != uid || egid != gid) { /* (suidperl doesn't exist, in fact) */ |
1882 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW | |
760ac839 | 1883 | Fstat(PerlIO_fileno(rsfp),&statbuf); /* may be either wrapped or real suid */ |
a687059c LW |
1884 | if ((euid != uid && euid == statbuf.st_uid && statbuf.st_mode & S_ISUID) |
1885 | || | |
1886 | (egid != gid && egid == statbuf.st_gid && statbuf.st_mode & S_ISGID) | |
1887 | ) | |
1888 | if (!do_undump) | |
463ee0b2 | 1889 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
1890 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1891 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ | |
1892 | /* not set-id, must be wrapped */ | |
a687059c | 1893 | } |
13281fa4 | 1894 | #endif /* DOSUID */ |
79072805 | 1895 | } |
13281fa4 | 1896 | |
79072805 LW |
1897 | static void |
1898 | find_beginning() | |
1899 | { | |
6e72f9df | 1900 | register char *s, *s2; |
33b78306 LW |
1901 | |
1902 | /* skip forward in input to the real script? */ | |
1903 | ||
bbce6d69 | 1904 | forbid_setid("-x"); |
33b78306 | 1905 | while (doextract) { |
79072805 | 1906 | if ((s = sv_gets(linestr, rsfp, 0)) == Nullch) |
463ee0b2 | 1907 | croak("No Perl script found in input\n"); |
6e72f9df | 1908 | if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) { |
760ac839 | 1909 | PerlIO_ungetc(rsfp, '\n'); /* to keep line count right */ |
33b78306 | 1910 | doextract = FALSE; |
6e72f9df | 1911 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
1912 | s2 = s; | |
1913 | while (*s == ' ' || *s == '\t') s++; | |
1914 | if (*s++ == '-') { | |
1915 | while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--; | |
1916 | if (strnEQ(s2-4,"perl",4)) | |
1917 | /*SUPPRESS 530*/ | |
1918 | while (s = moreswitches(s)) ; | |
33b78306 | 1919 | } |
79072805 | 1920 | if (cddir && chdir(cddir) < 0) |
463ee0b2 | 1921 | croak("Can't chdir to %s",cddir); |
83025b21 LW |
1922 | } |
1923 | } | |
1924 | } | |
1925 | ||
79072805 | 1926 | static void |
748a9306 | 1927 | init_ids() |
352d5a3a | 1928 | { |
748a9306 LW |
1929 | uid = (int)getuid(); |
1930 | euid = (int)geteuid(); | |
1931 | gid = (int)getgid(); | |
1932 | egid = (int)getegid(); | |
1933 | #ifdef VMS | |
1934 | uid |= gid << 16; | |
1935 | euid |= egid << 16; | |
1936 | #endif | |
4633a7c4 | 1937 | tainting |= (uid && (euid != uid || egid != gid)); |
748a9306 | 1938 | } |
79072805 | 1939 | |
748a9306 | 1940 | static void |
bbce6d69 | 1941 | forbid_setid(s) |
1942 | char *s; | |
1943 | { | |
1944 | if (euid != uid) | |
1945 | croak("No %s allowed while running setuid", s); | |
1946 | if (egid != gid) | |
1947 | croak("No %s allowed while running setgid", s); | |
1948 | } | |
1949 | ||
1950 | static void | |
748a9306 LW |
1951 | init_debugger() |
1952 | { | |
79072805 | 1953 | curstash = debstash; |
748a9306 | 1954 | dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); |
79072805 | 1955 | AvREAL_off(dbargs); |
a0d0e21e LW |
1956 | DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); |
1957 | DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); | |
748a9306 LW |
1958 | DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); |
1959 | DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); | |
c07a80fd | 1960 | sv_setiv(DBsingle, 0); |
748a9306 | 1961 | DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); |
c07a80fd | 1962 | sv_setiv(DBtrace, 0); |
748a9306 | 1963 | DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); |
c07a80fd | 1964 | sv_setiv(DBsignal, 0); |
79072805 | 1965 | curstash = defstash; |
352d5a3a LW |
1966 | } |
1967 | ||
79072805 | 1968 | static void |
8990e307 | 1969 | init_stacks() |
79072805 | 1970 | { |
6e72f9df | 1971 | curstack = newAV(); |
5f05dabc | 1972 | mainstack = curstack; /* remember in case we switch stacks */ |
1973 | AvREAL_off(curstack); /* not a real array */ | |
6e72f9df | 1974 | av_extend(curstack,127); |
79072805 | 1975 | |
6e72f9df | 1976 | stack_base = AvARRAY(curstack); |
79072805 | 1977 | stack_sp = stack_base; |
8990e307 | 1978 | stack_max = stack_base + 127; |
79072805 | 1979 | |
5f05dabc | 1980 | cxstack_max = 8192 / sizeof(CONTEXT) - 2; /* Use most of 8K. */ |
1981 | New(50,cxstack,cxstack_max + 1,CONTEXT); | |
1982 | cxstack_ix = -1; | |
1983 | ||
1984 | New(50,tmps_stack,128,SV*); | |
1985 | tmps_ix = -1; | |
1986 | tmps_max = 128; | |
1987 | ||
1988 | DEBUG( { | |
1989 | New(51,debname,128,char); | |
1990 | New(52,debdelim,128,char); | |
1991 | } ) | |
1992 | ||
1993 | /* | |
1994 | * The following stacks almost certainly should be per-interpreter, | |
1995 | * but for now they're not. XXX | |
1996 | */ | |
1997 | ||
6e72f9df | 1998 | if (markstack) { |
1999 | markstack_ptr = markstack; | |
2000 | } else { | |
2001 | New(54,markstack,64,I32); | |
2002 | markstack_ptr = markstack; | |
2003 | markstack_max = markstack + 64; | |
2004 | } | |
79072805 | 2005 | |
6e72f9df | 2006 | if (scopestack) { |
2007 | scopestack_ix = 0; | |
2008 | } else { | |
2009 | New(54,scopestack,32,I32); | |
2010 | scopestack_ix = 0; | |
2011 | scopestack_max = 32; | |
2012 | } | |
79072805 | 2013 | |
6e72f9df | 2014 | if (savestack) { |
2015 | savestack_ix = 0; | |
2016 | } else { | |
2017 | New(54,savestack,128,ANY); | |
2018 | savestack_ix = 0; | |
2019 | savestack_max = 128; | |
2020 | } | |
79072805 | 2021 | |
6e72f9df | 2022 | if (retstack) { |
2023 | retstack_ix = 0; | |
2024 | } else { | |
2025 | New(54,retstack,16,OP*); | |
2026 | retstack_ix = 0; | |
2027 | retstack_max = 16; | |
5f05dabc | 2028 | } |
378cc40b | 2029 | } |
33b78306 | 2030 | |
6e72f9df | 2031 | static void |
2032 | nuke_stacks() | |
2033 | { | |
2034 | Safefree(cxstack); | |
2035 | Safefree(tmps_stack); | |
5f05dabc | 2036 | DEBUG( { |
2037 | Safefree(debname); | |
2038 | Safefree(debdelim); | |
2039 | } ) | |
6e72f9df | 2040 | } |
2041 | ||
760ac839 | 2042 | static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
7aa04957 | 2043 | |
79072805 | 2044 | static void |
8990e307 LW |
2045 | init_lexer() |
2046 | { | |
a0d0e21e | 2047 | tmpfp = rsfp; |
8990e307 LW |
2048 | lex_start(linestr); |
2049 | rsfp = tmpfp; | |
2050 | subname = newSVpv("main",4); | |
2051 | } | |
2052 | ||
2053 | static void | |
79072805 | 2054 | init_predump_symbols() |
45d8adaa | 2055 | { |
93a17b20 | 2056 | GV *tmpgv; |
a0d0e21e | 2057 | GV *othergv; |
79072805 | 2058 | |
85e6fe83 | 2059 | sv_setpvn(GvSV(gv_fetchpv("\"", TRUE, SVt_PV)), " ", 1); |
79072805 | 2060 | |
85e6fe83 | 2061 | stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
a5f75d66 | 2062 | GvMULTI_on(stdingv); |
760ac839 | 2063 | IoIFP(GvIOp(stdingv)) = PerlIO_stdin(); |
adbc6bb1 | 2064 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 | 2065 | GvMULTI_on(tmpgv); |
a0d0e21e | 2066 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(stdingv)); |
79072805 | 2067 | |
85e6fe83 | 2068 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 | 2069 | GvMULTI_on(tmpgv); |
760ac839 | 2070 | IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout(); |
4633a7c4 | 2071 | setdefout(tmpgv); |
adbc6bb1 | 2072 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 | 2073 | GvMULTI_on(tmpgv); |
a0d0e21e | 2074 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(defoutgv)); |
79072805 | 2075 | |
a0d0e21e | 2076 | othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
a5f75d66 | 2077 | GvMULTI_on(othergv); |
760ac839 | 2078 | IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr(); |
adbc6bb1 | 2079 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 | 2080 | GvMULTI_on(tmpgv); |
a0d0e21e | 2081 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv)); |
79072805 LW |
2082 | |
2083 | statname = NEWSV(66,0); /* last filename we did stat on */ | |
ab821d7f | 2084 | |
6e72f9df | 2085 | if (!osname) |
2086 | osname = savepv(OSNAME); | |
79072805 | 2087 | } |
33b78306 | 2088 | |
79072805 LW |
2089 | static void |
2090 | init_postdump_symbols(argc,argv,env) | |
2091 | register int argc; | |
2092 | register char **argv; | |
2093 | register char **env; | |
33b78306 | 2094 | { |
79072805 LW |
2095 | char *s; |
2096 | SV *sv; | |
2097 | GV* tmpgv; | |
fe14fcc3 | 2098 | |
79072805 LW |
2099 | argc--,argv++; /* skip name of script */ |
2100 | if (doswitches) { | |
2101 | for (; argc > 0 && **argv == '-'; argc--,argv++) { | |
2102 | if (!argv[0][1]) | |
2103 | break; | |
2104 | if (argv[0][1] == '-') { | |
2105 | argc--,argv++; | |
2106 | break; | |
2107 | } | |
93a17b20 | 2108 | if (s = strchr(argv[0], '=')) { |
79072805 | 2109 | *s++ = '\0'; |
85e6fe83 | 2110 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 LW |
2111 | } |
2112 | else | |
85e6fe83 | 2113 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 | 2114 | } |
79072805 LW |
2115 | } |
2116 | toptarget = NEWSV(0,0); | |
2117 | sv_upgrade(toptarget, SVt_PVFM); | |
2118 | sv_setpvn(toptarget, "", 0); | |
748a9306 | 2119 | bodytarget = NEWSV(0,0); |
79072805 LW |
2120 | sv_upgrade(bodytarget, SVt_PVFM); |
2121 | sv_setpvn(bodytarget, "", 0); | |
2122 | formtarget = bodytarget; | |
2123 | ||
bbce6d69 | 2124 | TAINT; |
85e6fe83 | 2125 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
79072805 LW |
2126 | sv_setpv(GvSV(tmpgv),origfilename); |
2127 | magicname("0", "0", 1); | |
2128 | } | |
85e6fe83 | 2129 | if (tmpgv = gv_fetchpv("\024",TRUE, SVt_PV)) |
79072805 | 2130 | time(&basetime); |
85e6fe83 | 2131 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
79072805 | 2132 | sv_setpv(GvSV(tmpgv),origargv[0]); |
85e6fe83 | 2133 | if (argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { |
a5f75d66 | 2134 | GvMULTI_on(argvgv); |
79072805 LW |
2135 | (void)gv_AVadd(argvgv); |
2136 | av_clear(GvAVn(argvgv)); | |
2137 | for (; argc > 0; argc--,argv++) { | |
a0d0e21e | 2138 | av_push(GvAVn(argvgv),newSVpv(argv[0],0)); |
79072805 LW |
2139 | } |
2140 | } | |
85e6fe83 | 2141 | if (envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 | 2142 | HV *hv; |
a5f75d66 | 2143 | GvMULTI_on(envgv); |
79072805 | 2144 | hv = GvHVn(envgv); |
463ee0b2 | 2145 | hv_clear(hv); |
a0d0e21e | 2146 | #ifndef VMS /* VMS doesn't have environ array */ |
4633a7c4 LW |
2147 | /* Note that if the supplied env parameter is actually a copy |
2148 | of the global environ then it may now point to free'd memory | |
2149 | if the environment has been modified since. To avoid this | |
2150 | problem we treat env==NULL as meaning 'use the default' | |
2151 | */ | |
2152 | if (!env) | |
2153 | env = environ; | |
8990e307 | 2154 | if (env != environ) { |
79072805 | 2155 | environ[0] = Nullch; |
8990e307 LW |
2156 | hv_magic(hv, envgv, 'E'); |
2157 | } | |
79072805 | 2158 | for (; *env; env++) { |
93a17b20 | 2159 | if (!(s = strchr(*env,'='))) |
79072805 LW |
2160 | continue; |
2161 | *s++ = '\0'; | |
2162 | sv = newSVpv(s--,0); | |
85e6fe83 | 2163 | sv_magic(sv, sv, 'e', *env, s - *env); |
79072805 LW |
2164 | (void)hv_store(hv, *env, s - *env, sv, 0); |
2165 | *s = '='; | |
fe14fcc3 | 2166 | } |
4550b24a | 2167 | #endif |
2168 | #ifdef DYNAMIC_ENV_FETCH | |
2169 | HvNAME(hv) = savepv(ENV_HV_NAME); | |
2170 | #endif | |
f511e57f | 2171 | hv_magic(hv, envgv, 'E'); |
79072805 | 2172 | } |
bbce6d69 | 2173 | TAINT_NOT; |
85e6fe83 | 2174 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
79072805 | 2175 | sv_setiv(GvSV(tmpgv),(I32)getpid()); |
33b78306 | 2176 | } |
34de22dd | 2177 | |
79072805 LW |
2178 | static void |
2179 | init_perllib() | |
34de22dd | 2180 | { |
85e6fe83 LW |
2181 | char *s; |
2182 | if (!tainting) { | |
552a7a9b | 2183 | #ifndef VMS |
85e6fe83 LW |
2184 | s = getenv("PERL5LIB"); |
2185 | if (s) | |
2186 | incpush(s); | |
2187 | else | |
2188 | incpush(getenv("PERLLIB")); | |
552a7a9b | 2189 | #else /* VMS */ |
2190 | /* Treat PERL5?LIB as a possible search list logical name -- the | |
2191 | * "natural" VMS idiom for a Unix path string. We allow each | |
2192 | * element to be a set of |-separated directories for compatibility. | |
2193 | */ | |
2194 | char buf[256]; | |
2195 | int idx = 0; | |
2196 | if (my_trnlnm("PERL5LIB",buf,0)) | |
2197 | do { incpush(buf); } while (my_trnlnm("PERL5LIB",buf,++idx)); | |
2198 | else | |
2199 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf); | |
2200 | #endif /* VMS */ | |
85e6fe83 | 2201 | } |
34de22dd | 2202 | |
df5cef82 | 2203 | /* Use the ~-expanded versions of APPLIB (undocumented), |
2204 | ARCHLIB PRIVLIB SITEARCH SITELIB and OLDARCHLIB | |
2205 | */ | |
4633a7c4 LW |
2206 | #ifdef APPLLIB_EXP |
2207 | incpush(APPLLIB_EXP); | |
16d20bd9 | 2208 | #endif |
4633a7c4 | 2209 | |
fed7345c AD |
2210 | #ifdef ARCHLIB_EXP |
2211 | incpush(ARCHLIB_EXP); | |
a0d0e21e | 2212 | #endif |
fed7345c AD |
2213 | #ifndef PRIVLIB_EXP |
2214 | #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" | |
34de22dd | 2215 | #endif |
fed7345c | 2216 | incpush(PRIVLIB_EXP); |
4633a7c4 LW |
2217 | |
2218 | #ifdef SITEARCH_EXP | |
2219 | incpush(SITEARCH_EXP); | |
2220 | #endif | |
2221 | #ifdef SITELIB_EXP | |
2222 | incpush(SITELIB_EXP); | |
2223 | #endif | |
2224 | #ifdef OLDARCHLIB_EXP /* 5.00[01] compatibility */ | |
2225 | incpush(OLDARCHLIB_EXP); | |
2226 | #endif | |
a0d0e21e | 2227 | |
4633a7c4 LW |
2228 | if (!tainting) |
2229 | incpush("."); | |
34de22dd | 2230 | } |
93a17b20 LW |
2231 | |
2232 | void | |
2233 | calllist(list) | |
2234 | AV* list; | |
2235 | { | |
a5f75d66 | 2236 | Sigjmp_buf oldtop; |
a0d0e21e LW |
2237 | STRLEN len; |
2238 | line_t oldline = curcop->cop_line; | |
93a17b20 | 2239 | |
a5f75d66 | 2240 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
93a17b20 | 2241 | |
8990e307 LW |
2242 | while (AvFILL(list) >= 0) { |
2243 | CV *cv = (CV*)av_shift(list); | |
93a17b20 | 2244 | |
8990e307 | 2245 | SAVEFREESV(cv); |
a0d0e21e | 2246 | |
a5f75d66 | 2247 | switch (Sigsetjmp(top_env,1)) { |
748a9306 | 2248 | case 0: { |
4633a7c4 | 2249 | SV* atsv = GvSV(errgv); |
748a9306 LW |
2250 | PUSHMARK(stack_sp); |
2251 | perl_call_sv((SV*)cv, G_EVAL|G_DISCARD); | |
2252 | (void)SvPV(atsv, len); | |
2253 | if (len) { | |
a5f75d66 | 2254 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
748a9306 LW |
2255 | curcop = &compiling; |
2256 | curcop->cop_line = oldline; | |
2257 | if (list == beginav) | |
2258 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); | |
2259 | else | |
2260 | sv_catpv(atsv, "END failed--cleanup aborted"); | |
2261 | croak("%s", SvPVX(atsv)); | |
2262 | } | |
a0d0e21e | 2263 | } |
85e6fe83 LW |
2264 | break; |
2265 | case 1: | |
748a9306 | 2266 | #ifdef VMS |
85e6fe83 | 2267 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 LW |
2268 | #else |
2269 | statusvalue = 1; | |
2270 | #endif | |
85e6fe83 LW |
2271 | /* FALL THROUGH */ |
2272 | case 2: | |
2273 | /* my_exit() was called */ | |
2274 | curstash = defstash; | |
2275 | if (endav) | |
2276 | calllist(endav); | |
a0d0e21e | 2277 | FREETMPS; |
a5f75d66 | 2278 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
2279 | curcop = &compiling; |
2280 | curcop->cop_line = oldline; | |
85e6fe83 LW |
2281 | if (statusvalue) { |
2282 | if (list == beginav) | |
a0d0e21e | 2283 | croak("BEGIN failed--compilation aborted"); |
85e6fe83 | 2284 | else |
a0d0e21e | 2285 | croak("END failed--cleanup aborted"); |
85e6fe83 | 2286 | } |
85e6fe83 LW |
2287 | my_exit(statusvalue); |
2288 | /* NOTREACHED */ | |
2289 | return; | |
2290 | case 3: | |
2291 | if (!restartop) { | |
760ac839 | 2292 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e | 2293 | FREETMPS; |
85e6fe83 LW |
2294 | break; |
2295 | } | |
a5f75d66 | 2296 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
2297 | curcop = &compiling; |
2298 | curcop->cop_line = oldline; | |
a5f75d66 | 2299 | Siglongjmp(top_env, 3); |
8990e307 | 2300 | } |
93a17b20 LW |
2301 | } |
2302 | ||
a5f75d66 | 2303 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
93a17b20 LW |
2304 | } |
2305 |