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 | |
4633a7c4 | 23 | dEXT 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; |
79072805 LW |
120 | #endif |
121 | ||
748a9306 | 122 | init_ids(); |
a5f75d66 | 123 | |
36477c24 | 124 | SET_NUMERIC_STANDARD(); |
a5f75d66 | 125 | #if defined(SUBVERSION) && SUBVERSION > 0 |
e2666263 | 126 | sprintf(patchlevel, "%7.5f", (double) 5 |
127 | + ((double) PATCHLEVEL / (double) 1000) | |
128 | + ((double) SUBVERSION / (double) 100000)); | |
a5f75d66 | 129 | #else |
e2666263 | 130 | sprintf(patchlevel, "%5.3f", (double) 5 + |
131 | ((double) PATCHLEVEL / (double) 1000)); | |
a5f75d66 | 132 | #endif |
79072805 | 133 | |
ab821d7f | 134 | #if defined(LOCAL_PATCH_COUNT) |
6e72f9df | 135 | localpatches = local_patches; /* For possible -v */ |
ab821d7f | 136 | #endif |
137 | ||
760ac839 LW |
138 | PerlIO_init(); /* Hook to IO system */ |
139 | ||
79072805 | 140 | fdpid = newAV(); /* for remembering popen pids by fd */ |
463ee0b2 | 141 | pidstatus = newHV();/* for remembering status of dead pids */ |
8990e307 LW |
142 | |
143 | init_stacks(); | |
144 | ENTER; | |
79072805 LW |
145 | } |
146 | ||
147 | void | |
748a9306 | 148 | perl_destruct(sv_interp) |
93a17b20 | 149 | register PerlInterpreter *sv_interp; |
79072805 | 150 | { |
748a9306 | 151 | int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
8990e307 | 152 | I32 last_sv_count; |
a0d0e21e | 153 | HV *hv; |
8990e307 | 154 | |
79072805 LW |
155 | if (!(curinterp = sv_interp)) |
156 | return; | |
748a9306 LW |
157 | |
158 | destruct_level = perl_destruct_level; | |
4633a7c4 LW |
159 | #ifdef DEBUGGING |
160 | { | |
161 | char *s; | |
162 | if (s = getenv("PERL_DESTRUCT_LEVEL")) | |
163 | destruct_level = atoi(s); | |
164 | } | |
165 | #endif | |
166 | ||
8990e307 | 167 | LEAVE; |
a0d0e21e LW |
168 | FREETMPS; |
169 | ||
6e72f9df | 170 | /* We must account for everything. First the syntax tree. */ |
171 | if (main_root) { | |
172 | curpad = AvARRAY(comppad); | |
173 | op_free(main_root); | |
174 | main_root = 0; | |
a0d0e21e LW |
175 | } |
176 | if (sv_objcount) { | |
177 | /* | |
178 | * Try to destruct global references. We do this first so that the | |
179 | * destructors and destructees still exist. Some sv's might remain. | |
180 | * Non-referenced objects are on their own. | |
181 | */ | |
182 | ||
183 | dirty = TRUE; | |
184 | sv_clean_objs(); | |
8990e307 LW |
185 | } |
186 | ||
a0d0e21e | 187 | if (destruct_level == 0){ |
8990e307 | 188 | |
a0d0e21e LW |
189 | DEBUG_P(debprofdump()); |
190 | ||
191 | /* The exit() function will do everything that needs doing. */ | |
192 | return; | |
193 | } | |
5dd60ef7 | 194 | |
195 | /* unhook hooks which may now point to, or use, broken code */ | |
196 | if (warnhook && SvREFCNT(warnhook)) | |
197 | SvREFCNT_dec(warnhook); | |
198 | if (diehook && SvREFCNT(diehook)) | |
199 | SvREFCNT_dec(diehook); | |
200 | if (parsehook && SvREFCNT(parsehook)) | |
201 | SvREFCNT_dec(parsehook); | |
a0d0e21e LW |
202 | |
203 | /* Prepare to destruct main symbol table. */ | |
204 | hv = defstash; | |
85e6fe83 | 205 | defstash = 0; |
a0d0e21e LW |
206 | SvREFCNT_dec(hv); |
207 | ||
208 | FREETMPS; | |
209 | if (destruct_level >= 2) { | |
210 | if (scopestack_ix != 0) | |
211 | warn("Unbalanced scopes: %d more ENTERs than LEAVEs\n", scopestack_ix); | |
212 | if (savestack_ix != 0) | |
213 | warn("Unbalanced saves: %d more saves than restores\n", savestack_ix); | |
214 | if (tmps_floor != -1) | |
215 | warn("Unbalanced tmps: %d more allocs than frees\n", tmps_floor + 1); | |
216 | if (cxstack_ix != -1) | |
217 | warn("Unbalanced context: %d more PUSHes than POPs\n", cxstack_ix + 1); | |
218 | } | |
8990e307 LW |
219 | |
220 | /* Now absolutely destruct everything, somehow or other, loops or no. */ | |
8990e307 | 221 | last_sv_count = 0; |
6e72f9df | 222 | SvFLAGS(strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
8990e307 LW |
223 | while (sv_count != 0 && sv_count != last_sv_count) { |
224 | last_sv_count = sv_count; | |
225 | sv_clean_all(); | |
226 | } | |
6e72f9df | 227 | SvFLAGS(strtab) &= ~SVTYPEMASK; |
228 | SvFLAGS(strtab) |= SVt_PVHV; | |
229 | ||
230 | /* Destruct the global string table. */ | |
231 | { | |
232 | /* Yell and reset the HeVAL() slots that are still holding refcounts, | |
233 | * so that sv_free() won't fail on them. | |
234 | */ | |
235 | I32 riter; | |
236 | I32 max; | |
237 | HE *hent; | |
238 | HE **array; | |
239 | ||
240 | riter = 0; | |
241 | max = HvMAX(strtab); | |
242 | array = HvARRAY(strtab); | |
243 | hent = array[0]; | |
244 | for (;;) { | |
245 | if (hent) { | |
246 | warn("Unbalanced string table refcount: (%d) for \"%s\"", | |
247 | HeVAL(hent) - Nullsv, HeKEY(hent)); | |
248 | HeVAL(hent) = Nullsv; | |
249 | hent = HeNEXT(hent); | |
250 | } | |
251 | if (!hent) { | |
252 | if (++riter > max) | |
253 | break; | |
254 | hent = array[riter]; | |
255 | } | |
256 | } | |
257 | } | |
258 | SvREFCNT_dec(strtab); | |
259 | ||
8990e307 LW |
260 | if (sv_count != 0) |
261 | warn("Scalars leaked: %d\n", sv_count); | |
6e72f9df | 262 | |
4633a7c4 | 263 | sv_free_arenas(); |
a0d0e21e | 264 | |
6e72f9df | 265 | linestr = NULL; /* No SVs have survived, need to clean out */ |
266 | if (origfilename) | |
267 | Safefree(origfilename); | |
268 | nuke_stacks(); | |
269 | hints = 0; /* Reset hints. Should hints be per-interpreter ? */ | |
270 | ||
a0d0e21e | 271 | DEBUG_P(debprofdump()); |
79072805 LW |
272 | } |
273 | ||
274 | void | |
275 | perl_free(sv_interp) | |
93a17b20 | 276 | PerlInterpreter *sv_interp; |
79072805 LW |
277 | { |
278 | if (!(curinterp = sv_interp)) | |
279 | return; | |
280 | Safefree(sv_interp); | |
281 | } | |
ecfc5424 | 282 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) |
a0d0e21e LW |
283 | char *getenv _((char *)); /* Usually in <stdlib.h> */ |
284 | #endif | |
79072805 LW |
285 | |
286 | int | |
a0d0e21e | 287 | perl_parse(sv_interp, xsinit, argc, argv, env) |
93a17b20 | 288 | PerlInterpreter *sv_interp; |
a0d0e21e LW |
289 | void (*xsinit)_((void)); |
290 | int argc; | |
291 | char **argv; | |
79072805 | 292 | char **env; |
8d063cd8 | 293 | { |
79072805 | 294 | register SV *sv; |
8d063cd8 | 295 | register char *s; |
1a30305b | 296 | char *scriptname = NULL; |
a0d0e21e | 297 | VOL bool dosearch = FALSE; |
13281fa4 | 298 | char *validarg = ""; |
748a9306 | 299 | AV* comppadlist; |
8d063cd8 | 300 | |
a687059c LW |
301 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
302 | #ifdef IAMSUID | |
303 | #undef IAMSUID | |
463ee0b2 | 304 | croak("suidperl is no longer needed since the kernel can now execute\n\ |
a687059c LW |
305 | setuid perl scripts securely.\n"); |
306 | #endif | |
307 | #endif | |
308 | ||
79072805 LW |
309 | if (!(curinterp = sv_interp)) |
310 | return 255; | |
311 | ||
6e72f9df | 312 | #if defined(NeXT) && defined(__DYNAMIC__) |
313 | _dyld_lookup_and_bind | |
314 | ("__environ", (unsigned long *) &environ_pointer, NULL); | |
315 | #endif /* environ */ | |
316 | ||
ac58e20f LW |
317 | origargv = argv; |
318 | origargc = argc; | |
a0d0e21e | 319 | #ifndef VMS /* VMS doesn't have environ array */ |
fe14fcc3 | 320 | origenviron = environ; |
a0d0e21e | 321 | #endif |
ab821d7f | 322 | e_tmpname = Nullch; |
a0d0e21e LW |
323 | |
324 | if (do_undump) { | |
325 | ||
326 | /* Come here if running an undumped a.out. */ | |
327 | ||
328 | origfilename = savepv(argv[0]); | |
329 | do_undump = FALSE; | |
330 | cxstack_ix = -1; /* start label stack again */ | |
748a9306 | 331 | init_ids(); |
a0d0e21e LW |
332 | init_postdump_symbols(argc,argv,env); |
333 | return 0; | |
334 | } | |
335 | ||
336 | if (main_root) | |
337 | op_free(main_root); | |
338 | main_root = 0; | |
79072805 | 339 | |
a5f75d66 | 340 | switch (Sigsetjmp(top_env,1)) { |
79072805 | 341 | case 1: |
748a9306 | 342 | #ifdef VMS |
79072805 | 343 | statusvalue = 255; |
748a9306 LW |
344 | #else |
345 | statusvalue = 1; | |
346 | #endif | |
79072805 | 347 | case 2: |
8990e307 LW |
348 | curstash = defstash; |
349 | if (endav) | |
350 | calllist(endav); | |
79072805 LW |
351 | return(statusvalue); /* my_exit() was called */ |
352 | case 3: | |
760ac839 | 353 | PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); |
8990e307 | 354 | return 1; |
79072805 LW |
355 | } |
356 | ||
79072805 LW |
357 | sv_setpvn(linestr,"",0); |
358 | sv = newSVpv("",0); /* first used for -I flags */ | |
8990e307 | 359 | SAVEFREESV(sv); |
79072805 | 360 | init_main_stash(); |
33b78306 | 361 | for (argc--,argv++; argc > 0; argc--,argv++) { |
8d063cd8 LW |
362 | if (argv[0][0] != '-' || !argv[0][1]) |
363 | break; | |
13281fa4 LW |
364 | #ifdef DOSUID |
365 | if (*validarg) | |
366 | validarg = " PHOOEY "; | |
367 | else | |
368 | validarg = argv[0]; | |
369 | #endif | |
370 | s = argv[0]+1; | |
8d063cd8 | 371 | reswitch: |
13281fa4 | 372 | switch (*s) { |
27e2fb84 | 373 | case '0': |
2304df62 | 374 | case 'F': |
378cc40b | 375 | case 'a': |
33b78306 | 376 | case 'c': |
a687059c | 377 | case 'd': |
8d063cd8 | 378 | case 'D': |
4633a7c4 | 379 | case 'h': |
33b78306 | 380 | case 'i': |
fe14fcc3 | 381 | case 'l': |
1a30305b | 382 | case 'M': |
383 | case 'm': | |
33b78306 LW |
384 | case 'n': |
385 | case 'p': | |
79072805 | 386 | case 's': |
463ee0b2 | 387 | case 'T': |
33b78306 LW |
388 | case 'u': |
389 | case 'U': | |
390 | case 'v': | |
391 | case 'w': | |
392 | if (s = moreswitches(s)) | |
393 | goto reswitch; | |
8d063cd8 | 394 | break; |
33b78306 | 395 | |
8d063cd8 | 396 | case 'e': |
a687059c | 397 | if (euid != uid || egid != gid) |
463ee0b2 | 398 | croak("No -e allowed in setuid scripts"); |
8d063cd8 | 399 | if (!e_fp) { |
a0d0e21e | 400 | e_tmpname = savepv(TMPPATH); |
a687059c | 401 | (void)mktemp(e_tmpname); |
83025b21 | 402 | if (!*e_tmpname) |
463ee0b2 | 403 | croak("Can't mktemp()"); |
760ac839 | 404 | e_fp = PerlIO_open(e_tmpname,"w"); |
33b78306 | 405 | if (!e_fp) |
463ee0b2 | 406 | croak("Cannot open temporary file"); |
8d063cd8 | 407 | } |
552a7a9b | 408 | if (*++s) |
409 | PerlIO_puts(e_fp,s); | |
410 | else if (argv[1]) { | |
760ac839 | 411 | PerlIO_puts(e_fp,argv[1]); |
33b78306 LW |
412 | argc--,argv++; |
413 | } | |
552a7a9b | 414 | else |
415 | croak("No code specified for -e"); | |
760ac839 | 416 | (void)PerlIO_putc(e_fp,'\n'); |
8d063cd8 LW |
417 | break; |
418 | case 'I': | |
bbce6d69 | 419 | forbid_setid("-I"); |
79072805 LW |
420 | sv_catpv(sv,"-"); |
421 | sv_catpv(sv,s); | |
422 | sv_catpv(sv," "); | |
a687059c | 423 | if (*++s) { |
a0d0e21e | 424 | av_push(GvAVn(incgv),newSVpv(s,0)); |
378cc40b | 425 | } |
33b78306 | 426 | else if (argv[1]) { |
a0d0e21e | 427 | av_push(GvAVn(incgv),newSVpv(argv[1],0)); |
79072805 | 428 | sv_catpv(sv,argv[1]); |
8d063cd8 | 429 | argc--,argv++; |
79072805 | 430 | sv_catpv(sv," "); |
8d063cd8 LW |
431 | } |
432 | break; | |
8d063cd8 | 433 | case 'P': |
bbce6d69 | 434 | forbid_setid("-P"); |
8d063cd8 | 435 | preprocess = TRUE; |
13281fa4 | 436 | s++; |
8d063cd8 | 437 | goto reswitch; |
378cc40b | 438 | case 'S': |
bbce6d69 | 439 | forbid_setid("-S"); |
378cc40b | 440 | dosearch = TRUE; |
13281fa4 | 441 | s++; |
378cc40b | 442 | goto reswitch; |
1a30305b | 443 | case 'V': |
444 | if (!preambleav) | |
445 | preambleav = newAV(); | |
446 | av_push(preambleav, newSVpv("use Config qw(myconfig config_vars)",0)); | |
447 | if (*++s != ':') { | |
6e72f9df | 448 | Sv = newSVpv("print myconfig();",0); |
449 | #ifdef VMS | |
450 | sv_catpv(Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\","); | |
451 | #else | |
452 | sv_catpv(Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\","); | |
453 | #endif | |
454 | #if defined(DEBUGGING) || defined(NOEMBED) || defined(MULTIPLICITY) | |
455 | strcpy(buf,"\" Compile-time options:"); | |
456 | # ifdef DEBUGGING | |
457 | strcat(buf," DEBUGGING"); | |
458 | # endif | |
459 | # ifdef NOEMBED | |
460 | strcat(buf," NOEMBED"); | |
461 | # endif | |
462 | # ifdef MULTIPLICITY | |
463 | strcat(buf," MULTIPLICITY"); | |
464 | # endif | |
465 | strcat(buf,"\\n\","); | |
466 | sv_catpv(Sv,buf); | |
467 | #endif | |
468 | #if defined(LOCAL_PATCH_COUNT) | |
469 | if (LOCAL_PATCH_COUNT > 0) | |
470 | { int i; | |
471 | sv_catpv(Sv,"print \" Locally applied patches:\\n\","); | |
472 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { | |
473 | if (localpatches[i]) { | |
474 | sprintf(buf,"\" \\t%s\\n\",",localpatches[i]); | |
475 | sv_catpv(Sv,buf); | |
476 | } | |
477 | } | |
478 | } | |
479 | #endif | |
480 | sprintf(buf,"\" Built under %s\\n\",",OSNAME); | |
481 | sv_catpv(Sv,buf); | |
482 | #ifdef __DATE__ | |
483 | # ifdef __TIME__ | |
484 | sprintf(buf,"\" Compiled at %s %s\\n\"",__DATE__,__TIME__); | |
485 | # else | |
486 | sprintf(buf,"\" Compiled on %s\\n\"",__DATE__); | |
487 | # endif | |
488 | sv_catpv(Sv,buf); | |
489 | #endif | |
490 | sv_catpv(Sv,"; $\"=\"\\n \"; print \" \\@INC:\\n @INC\\n\""); | |
1a30305b | 491 | } |
492 | else { | |
493 | Sv = newSVpv("config_vars(qw(",0); | |
494 | sv_catpv(Sv, ++s); | |
495 | sv_catpv(Sv, "))"); | |
496 | s += strlen(s); | |
497 | } | |
498 | av_push(preambleav, Sv); | |
c07a80fd | 499 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
1a30305b | 500 | goto reswitch; |
33b78306 LW |
501 | case 'x': |
502 | doextract = TRUE; | |
13281fa4 | 503 | s++; |
33b78306 | 504 | if (*s) |
a0d0e21e | 505 | cddir = savepv(s); |
33b78306 | 506 | break; |
8d063cd8 LW |
507 | case '-': |
508 | argc--,argv++; | |
509 | goto switch_end; | |
510 | case 0: | |
511 | break; | |
512 | default: | |
463ee0b2 | 513 | croak("Unrecognized switch: -%s",s); |
8d063cd8 LW |
514 | } |
515 | } | |
516 | switch_end: | |
1a30305b | 517 | if (!scriptname) |
518 | scriptname = argv[0]; | |
8d063cd8 | 519 | if (e_fp) { |
760ac839 | 520 | if (PerlIO_flush(e_fp) || PerlIO_error(e_fp) || PerlIO_close(e_fp)) |
2304df62 | 521 | croak("Can't write to temp file for -e: %s", Strerror(errno)); |
ab821d7f | 522 | e_fp = Nullfp; |
8d063cd8 | 523 | argc++,argv--; |
45d8adaa | 524 | scriptname = e_tmpname; |
8d063cd8 | 525 | } |
79072805 LW |
526 | else if (scriptname == Nullch) { |
527 | #ifdef MSDOS | |
760ac839 | 528 | if ( isatty(PerlIO_fileno(PerlIO_stdin())) ) |
55497cff | 529 | moreswitches("h"); |
fe14fcc3 | 530 | #endif |
79072805 LW |
531 | scriptname = "-"; |
532 | } | |
fe14fcc3 | 533 | |
79072805 | 534 | init_perllib(); |
8d063cd8 | 535 | |
79072805 | 536 | open_script(scriptname,dosearch,sv); |
8d063cd8 | 537 | |
96436eeb | 538 | validate_suid(validarg, scriptname); |
378cc40b | 539 | |
79072805 LW |
540 | if (doextract) |
541 | find_beginning(); | |
542 | ||
748a9306 LW |
543 | compcv = (CV*)NEWSV(1104,0); |
544 | sv_upgrade((SV *)compcv, SVt_PVCV); | |
545 | ||
6e72f9df | 546 | comppad = newAV(); |
79072805 LW |
547 | av_push(comppad, Nullsv); |
548 | curpad = AvARRAY(comppad); | |
6e72f9df | 549 | comppad_name = newAV(); |
8990e307 LW |
550 | comppad_name_fill = 0; |
551 | min_intro_pending = 0; | |
79072805 LW |
552 | padix = 0; |
553 | ||
748a9306 LW |
554 | comppadlist = newAV(); |
555 | AvREAL_off(comppadlist); | |
8e07c86e AD |
556 | av_store(comppadlist, 0, (SV*)comppad_name); |
557 | av_store(comppadlist, 1, (SV*)comppad); | |
748a9306 LW |
558 | CvPADLIST(compcv) = comppadlist; |
559 | ||
6e72f9df | 560 | boot_core_UNIVERSAL(); |
a0d0e21e LW |
561 | if (xsinit) |
562 | (*xsinit)(); /* in case linked C routines want magical variables */ | |
748a9306 LW |
563 | #ifdef VMS |
564 | init_os_extras(); | |
565 | #endif | |
93a17b20 | 566 | |
93a17b20 | 567 | init_predump_symbols(); |
8990e307 LW |
568 | if (!do_undump) |
569 | init_postdump_symbols(argc,argv,env); | |
93a17b20 | 570 | |
79072805 LW |
571 | init_lexer(); |
572 | ||
573 | /* now parse the script */ | |
574 | ||
575 | error_count = 0; | |
576 | if (yyparse() || error_count) { | |
577 | if (minus_c) | |
463ee0b2 | 578 | croak("%s had compilation errors.\n", origfilename); |
79072805 | 579 | else { |
463ee0b2 | 580 | croak("Execution of %s aborted due to compilation errors.\n", |
79072805 | 581 | origfilename); |
378cc40b | 582 | } |
79072805 LW |
583 | } |
584 | curcop->cop_line = 0; | |
585 | curstash = defstash; | |
586 | preprocess = FALSE; | |
ab821d7f | 587 | if (e_tmpname) { |
79072805 | 588 | (void)UNLINK(e_tmpname); |
ab821d7f | 589 | Safefree(e_tmpname); |
590 | e_tmpname = Nullch; | |
378cc40b | 591 | } |
a687059c | 592 | |
93a17b20 | 593 | /* now that script is parsed, we can modify record separator */ |
c07a80fd | 594 | SvREFCNT_dec(rs); |
595 | rs = SvREFCNT_inc(nrs); | |
596 | sv_setsv(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), rs); | |
45d8adaa | 597 | |
79072805 LW |
598 | if (do_undump) |
599 | my_unexec(); | |
600 | ||
8990e307 LW |
601 | if (dowarn) |
602 | gv_check(defstash); | |
603 | ||
a0d0e21e LW |
604 | LEAVE; |
605 | FREETMPS; | |
c07a80fd | 606 | |
607 | #ifdef DEBUGGING_MSTATS | |
608 | if ((s=getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) | |
609 | dump_mstats("after compilation:"); | |
610 | #endif | |
611 | ||
a0d0e21e LW |
612 | ENTER; |
613 | restartop = 0; | |
79072805 LW |
614 | return 0; |
615 | } | |
616 | ||
617 | int | |
618 | perl_run(sv_interp) | |
93a17b20 | 619 | PerlInterpreter *sv_interp; |
79072805 LW |
620 | { |
621 | if (!(curinterp = sv_interp)) | |
622 | return 255; | |
a5f75d66 | 623 | switch (Sigsetjmp(top_env,1)) { |
79072805 LW |
624 | case 1: |
625 | cxstack_ix = -1; /* start context stack again */ | |
626 | break; | |
627 | case 2: | |
628 | curstash = defstash; | |
93a17b20 LW |
629 | if (endav) |
630 | calllist(endav); | |
a0d0e21e | 631 | FREETMPS; |
c07a80fd | 632 | #ifdef DEBUGGING_MSTATS |
633 | if (getenv("PERL_DEBUG_MSTATS")) | |
634 | dump_mstats("after execution: "); | |
635 | #endif | |
93a17b20 | 636 | return(statusvalue); /* my_exit() was called */ |
79072805 LW |
637 | case 3: |
638 | if (!restartop) { | |
760ac839 | 639 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e | 640 | FREETMPS; |
8990e307 | 641 | return 1; |
83025b21 | 642 | } |
6e72f9df | 643 | if (curstack != mainstack) { |
79072805 | 644 | dSP; |
6e72f9df | 645 | SWITCHSTACK(curstack, mainstack); |
79072805 LW |
646 | } |
647 | break; | |
8d063cd8 | 648 | } |
79072805 | 649 | |
760ac839 | 650 | DEBUG_r(PerlIO_printf(PerlIO_stderr(), "%s $` $& $' support.\n", |
6e72f9df | 651 | sawampersand ? "Enabling" : "Omitting")); |
652 | ||
79072805 LW |
653 | if (!restartop) { |
654 | DEBUG_x(dump_all()); | |
760ac839 | 655 | DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); |
79072805 LW |
656 | |
657 | if (minus_c) { | |
760ac839 | 658 | PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", origfilename); |
79072805 LW |
659 | my_exit(0); |
660 | } | |
a0d0e21e LW |
661 | if (perldb && DBsingle) |
662 | sv_setiv(DBsingle, 1); | |
45d8adaa | 663 | } |
79072805 LW |
664 | |
665 | /* do it */ | |
666 | ||
667 | if (restartop) { | |
668 | op = restartop; | |
669 | restartop = 0; | |
ab821d7f | 670 | runops(); |
79072805 LW |
671 | } |
672 | else if (main_start) { | |
673 | op = main_start; | |
ab821d7f | 674 | runops(); |
79072805 | 675 | } |
79072805 LW |
676 | |
677 | my_exit(0); | |
a0d0e21e | 678 | return 0; |
79072805 LW |
679 | } |
680 | ||
681 | void | |
682 | my_exit(status) | |
748a9306 | 683 | U32 status; |
79072805 | 684 | { |
a0d0e21e LW |
685 | register CONTEXT *cx; |
686 | I32 gimme; | |
687 | SV **newsp; | |
688 | ||
748a9306 | 689 | statusvalue = FIXSTATUS(status); |
a0d0e21e LW |
690 | if (cxstack_ix >= 0) { |
691 | if (cxstack_ix > 0) | |
692 | dounwind(0); | |
693 | POPBLOCK(cx,curpm); | |
694 | LEAVE; | |
695 | } | |
a5f75d66 | 696 | Siglongjmp(top_env, 2); |
79072805 LW |
697 | } |
698 | ||
a0d0e21e LW |
699 | SV* |
700 | perl_get_sv(name, create) | |
701 | char* name; | |
702 | I32 create; | |
703 | { | |
704 | GV* gv = gv_fetchpv(name, create, SVt_PV); | |
705 | if (gv) | |
706 | return GvSV(gv); | |
707 | return Nullsv; | |
708 | } | |
709 | ||
710 | AV* | |
711 | perl_get_av(name, create) | |
712 | char* name; | |
713 | I32 create; | |
714 | { | |
715 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); | |
716 | if (create) | |
717 | return GvAVn(gv); | |
718 | if (gv) | |
719 | return GvAV(gv); | |
720 | return Nullav; | |
721 | } | |
722 | ||
723 | HV* | |
724 | perl_get_hv(name, create) | |
725 | char* name; | |
726 | I32 create; | |
727 | { | |
728 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); | |
729 | if (create) | |
730 | return GvHVn(gv); | |
731 | if (gv) | |
732 | return GvHV(gv); | |
733 | return Nullhv; | |
734 | } | |
735 | ||
736 | CV* | |
737 | perl_get_cv(name, create) | |
738 | char* name; | |
739 | I32 create; | |
740 | { | |
741 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); | |
742 | if (create && !GvCV(gv)) | |
743 | return newSUB(start_subparse(), | |
744 | newSVOP(OP_CONST, 0, newSVpv(name,0)), | |
4633a7c4 | 745 | Nullop, |
a0d0e21e LW |
746 | Nullop); |
747 | if (gv) | |
748 | return GvCV(gv); | |
749 | return Nullcv; | |
750 | } | |
751 | ||
79072805 LW |
752 | /* Be sure to refetch the stack pointer after calling these routines. */ |
753 | ||
a0d0e21e LW |
754 | I32 |
755 | perl_call_argv(subname, flags, argv) | |
8990e307 | 756 | char *subname; |
a0d0e21e LW |
757 | I32 flags; /* See G_* flags in cop.h */ |
758 | register char **argv; /* null terminated arg list */ | |
8990e307 | 759 | { |
a0d0e21e | 760 | dSP; |
8990e307 | 761 | |
a0d0e21e LW |
762 | PUSHMARK(sp); |
763 | if (argv) { | |
8990e307 | 764 | while (*argv) { |
a0d0e21e | 765 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 LW |
766 | argv++; |
767 | } | |
a0d0e21e | 768 | PUTBACK; |
8990e307 | 769 | } |
a0d0e21e | 770 | return perl_call_pv(subname, flags); |
8990e307 LW |
771 | } |
772 | ||
a0d0e21e LW |
773 | I32 |
774 | perl_call_pv(subname, flags) | |
775 | char *subname; /* name of the subroutine */ | |
776 | I32 flags; /* See G_* flags in cop.h */ | |
777 | { | |
778 | return perl_call_sv((SV*)perl_get_cv(subname, TRUE), flags); | |
779 | } | |
780 | ||
781 | I32 | |
782 | perl_call_method(methname, flags) | |
783 | char *methname; /* name of the subroutine */ | |
784 | I32 flags; /* See G_* flags in cop.h */ | |
785 | { | |
786 | dSP; | |
787 | OP myop; | |
788 | if (!op) | |
789 | op = &myop; | |
790 | XPUSHs(sv_2mortal(newSVpv(methname,0))); | |
791 | PUTBACK; | |
792 | pp_method(); | |
793 | return perl_call_sv(*stack_sp--, flags); | |
794 | } | |
795 | ||
796 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
797 | I32 | |
798 | perl_call_sv(sv, flags) | |
799 | SV* sv; | |
800 | I32 flags; /* See G_* flags in cop.h */ | |
801 | { | |
802 | LOGOP myop; /* fake syntax tree node */ | |
803 | SV** sp = stack_sp; | |
804 | I32 oldmark = TOPMARK; | |
805 | I32 retval; | |
a5f75d66 | 806 | Sigjmp_buf oldtop; |
a0d0e21e | 807 | I32 oldscope; |
6e72f9df | 808 | static CV *DBcv; |
a0d0e21e LW |
809 | |
810 | if (flags & G_DISCARD) { | |
811 | ENTER; | |
812 | SAVETMPS; | |
813 | } | |
814 | ||
815 | SAVESPTR(op); | |
816 | op = (OP*)&myop; | |
817 | Zero(op, 1, LOGOP); | |
818 | EXTEND(stack_sp, 1); | |
819 | *++stack_sp = sv; | |
820 | oldscope = scopestack_ix; | |
821 | ||
822 | if (!(flags & G_NOARGS)) | |
823 | myop.op_flags = OPf_STACKED; | |
824 | myop.op_next = Nullop; | |
825 | myop.op_flags |= OPf_KNOW; | |
826 | if (flags & G_ARRAY) | |
827 | myop.op_flags |= OPf_LIST; | |
828 | ||
36477c24 | 829 | if (perldb && curstash != debstash |
830 | /* Handle first BEGIN of -d. */ | |
831 | && (DBcv || (DBcv = GvCV(DBsub))) | |
832 | /* Try harder, since this may have been a sighandler, thus | |
833 | * curstash may be meaningless. */ | |
834 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != debstash)) | |
6e72f9df | 835 | op->op_private |= OPpENTERSUB_DB; |
836 | ||
a0d0e21e | 837 | if (flags & G_EVAL) { |
a5f75d66 | 838 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
a0d0e21e LW |
839 | |
840 | cLOGOP->op_other = op; | |
841 | markstack_ptr--; | |
4633a7c4 LW |
842 | /* we're trying to emulate pp_entertry() here */ |
843 | { | |
844 | register CONTEXT *cx; | |
845 | I32 gimme = GIMME; | |
846 | ||
847 | ENTER; | |
848 | SAVETMPS; | |
849 | ||
850 | push_return(op->op_next); | |
851 | PUSHBLOCK(cx, CXt_EVAL, stack_sp); | |
852 | PUSHEVAL(cx, 0, 0); | |
853 | eval_root = op; /* Only needed so that goto works right. */ | |
854 | ||
855 | in_eval = 1; | |
856 | if (flags & G_KEEPERR) | |
857 | in_eval |= 4; | |
858 | else | |
859 | sv_setpv(GvSV(errgv),""); | |
860 | } | |
a0d0e21e LW |
861 | markstack_ptr++; |
862 | ||
863 | restart: | |
a5f75d66 | 864 | switch (Sigsetjmp(top_env,1)) { |
a0d0e21e LW |
865 | case 0: |
866 | break; | |
867 | case 1: | |
748a9306 | 868 | #ifdef VMS |
a0d0e21e | 869 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 LW |
870 | #else |
871 | statusvalue = 1; | |
872 | #endif | |
a0d0e21e LW |
873 | /* FALL THROUGH */ |
874 | case 2: | |
875 | /* my_exit() was called */ | |
876 | curstash = defstash; | |
877 | FREETMPS; | |
a5f75d66 | 878 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
879 | if (statusvalue) |
880 | croak("Callback called exit"); | |
881 | my_exit(statusvalue); | |
882 | /* NOTREACHED */ | |
883 | case 3: | |
884 | if (restartop) { | |
885 | op = restartop; | |
886 | restartop = 0; | |
887 | goto restart; | |
888 | } | |
889 | stack_sp = stack_base + oldmark; | |
890 | if (flags & G_ARRAY) | |
891 | retval = 0; | |
892 | else { | |
893 | retval = 1; | |
894 | *++stack_sp = &sv_undef; | |
895 | } | |
896 | goto cleanup; | |
897 | } | |
898 | } | |
899 | ||
900 | if (op == (OP*)&myop) | |
901 | op = pp_entersub(); | |
902 | if (op) | |
ab821d7f | 903 | runops(); |
a0d0e21e | 904 | retval = stack_sp - (stack_base + oldmark); |
4633a7c4 LW |
905 | if ((flags & G_EVAL) && !(flags & G_KEEPERR)) |
906 | sv_setpv(GvSV(errgv),""); | |
a0d0e21e LW |
907 | |
908 | cleanup: | |
909 | if (flags & G_EVAL) { | |
910 | if (scopestack_ix > oldscope) { | |
a0a2876f LW |
911 | SV **newsp; |
912 | PMOP *newpm; | |
913 | I32 gimme; | |
914 | register CONTEXT *cx; | |
915 | I32 optype; | |
916 | ||
917 | POPBLOCK(cx,newpm); | |
918 | POPEVAL(cx); | |
919 | pop_return(); | |
920 | curpm = newpm; | |
921 | LEAVE; | |
a0d0e21e | 922 | } |
a5f75d66 | 923 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
924 | } |
925 | if (flags & G_DISCARD) { | |
926 | stack_sp = stack_base + oldmark; | |
927 | retval = 0; | |
928 | FREETMPS; | |
929 | LEAVE; | |
930 | } | |
931 | return retval; | |
932 | } | |
933 | ||
6e72f9df | 934 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 | 935 | |
a0d0e21e | 936 | I32 |
4633a7c4 | 937 | perl_eval_sv(sv, flags) |
8990e307 | 938 | SV* sv; |
4633a7c4 | 939 | I32 flags; /* See G_* flags in cop.h */ |
a0d0e21e LW |
940 | { |
941 | UNOP myop; /* fake syntax tree node */ | |
4633a7c4 LW |
942 | SV** sp = stack_sp; |
943 | I32 oldmark = sp - stack_base; | |
944 | I32 retval; | |
a5f75d66 | 945 | Sigjmp_buf oldtop; |
4633a7c4 | 946 | I32 oldscope; |
79072805 | 947 | |
4633a7c4 LW |
948 | if (flags & G_DISCARD) { |
949 | ENTER; | |
950 | SAVETMPS; | |
951 | } | |
952 | ||
79072805 | 953 | SAVESPTR(op); |
79072805 | 954 | op = (OP*)&myop; |
a0d0e21e | 955 | Zero(op, 1, UNOP); |
4633a7c4 LW |
956 | EXTEND(stack_sp, 1); |
957 | *++stack_sp = sv; | |
958 | oldscope = scopestack_ix; | |
79072805 | 959 | |
4633a7c4 LW |
960 | if (!(flags & G_NOARGS)) |
961 | myop.op_flags = OPf_STACKED; | |
79072805 | 962 | myop.op_next = Nullop; |
6e72f9df | 963 | myop.op_type = OP_ENTEREVAL; |
4633a7c4 | 964 | myop.op_flags |= OPf_KNOW; |
6e72f9df | 965 | if (flags & G_KEEPERR) |
966 | myop.op_flags |= OPf_SPECIAL; | |
4633a7c4 | 967 | if (flags & G_ARRAY) |
6e72f9df | 968 | myop.op_flags |= OPf_LIST; |
79072805 | 969 | |
a5f75d66 | 970 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
4633a7c4 LW |
971 | |
972 | restart: | |
a5f75d66 | 973 | switch (Sigsetjmp(top_env,1)) { |
4633a7c4 LW |
974 | case 0: |
975 | break; | |
976 | case 1: | |
977 | #ifdef VMS | |
978 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ | |
979 | #else | |
980 | statusvalue = 1; | |
981 | #endif | |
982 | /* FALL THROUGH */ | |
983 | case 2: | |
984 | /* my_exit() was called */ | |
985 | curstash = defstash; | |
986 | FREETMPS; | |
a5f75d66 | 987 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
4633a7c4 LW |
988 | if (statusvalue) |
989 | croak("Callback called exit"); | |
990 | my_exit(statusvalue); | |
991 | /* NOTREACHED */ | |
992 | case 3: | |
993 | if (restartop) { | |
994 | op = restartop; | |
995 | restartop = 0; | |
996 | goto restart; | |
997 | } | |
998 | stack_sp = stack_base + oldmark; | |
999 | if (flags & G_ARRAY) | |
1000 | retval = 0; | |
1001 | else { | |
1002 | retval = 1; | |
1003 | *++stack_sp = &sv_undef; | |
1004 | } | |
1005 | goto cleanup; | |
1006 | } | |
1007 | ||
1008 | if (op == (OP*)&myop) | |
1009 | op = pp_entereval(); | |
1010 | if (op) | |
ab821d7f | 1011 | runops(); |
4633a7c4 | 1012 | retval = stack_sp - (stack_base + oldmark); |
6e72f9df | 1013 | if (!(flags & G_KEEPERR)) |
4633a7c4 LW |
1014 | sv_setpv(GvSV(errgv),""); |
1015 | ||
1016 | cleanup: | |
a5f75d66 | 1017 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
4633a7c4 LW |
1018 | if (flags & G_DISCARD) { |
1019 | stack_sp = stack_base + oldmark; | |
1020 | retval = 0; | |
1021 | FREETMPS; | |
1022 | LEAVE; | |
1023 | } | |
1024 | return retval; | |
1025 | } | |
1026 | ||
1027 | /* Require a module. */ | |
1028 | ||
1029 | void | |
1030 | perl_require_pv(pv) | |
1031 | char* pv; | |
1032 | { | |
1033 | SV* sv = sv_newmortal(); | |
1034 | sv_setpv(sv, "require '"); | |
1035 | sv_catpv(sv, pv); | |
1036 | sv_catpv(sv, "'"); | |
1037 | perl_eval_sv(sv, G_DISCARD); | |
79072805 LW |
1038 | } |
1039 | ||
79072805 | 1040 | void |
79072805 LW |
1041 | magicname(sym,name,namlen) |
1042 | char *sym; | |
1043 | char *name; | |
1044 | I32 namlen; | |
1045 | { | |
1046 | register GV *gv; | |
1047 | ||
85e6fe83 | 1048 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 LW |
1049 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
1050 | } | |
1051 | ||
748a9306 LW |
1052 | #if defined(DOSISH) |
1053 | # define PERLLIB_SEP ';' | |
79072805 | 1054 | #else |
232e078e AD |
1055 | # if defined(VMS) |
1056 | # define PERLLIB_SEP '|' | |
1057 | # else | |
748a9306 | 1058 | # define PERLLIB_SEP ':' |
232e078e | 1059 | # endif |
79072805 | 1060 | #endif |
760ac839 LW |
1061 | #ifndef PERLLIB_MANGLE |
1062 | # define PERLLIB_MANGLE(s,n) (s) | |
1063 | #endif | |
79072805 LW |
1064 | |
1065 | static void | |
1066 | incpush(p) | |
1067 | char *p; | |
1068 | { | |
1069 | char *s; | |
1070 | ||
1071 | if (!p) | |
1072 | return; | |
1073 | ||
1074 | /* Break at all separators */ | |
1075 | while (*p) { | |
1076 | /* First, skip any consecutive separators */ | |
1077 | while ( *p == PERLLIB_SEP ) { | |
1078 | /* Uncomment the next line for PATH semantics */ | |
a0d0e21e | 1079 | /* av_push(GvAVn(incgv), newSVpv(".", 1)); */ |
79072805 LW |
1080 | p++; |
1081 | } | |
93a17b20 | 1082 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { |
760ac839 LW |
1083 | av_push(GvAVn(incgv), newSVpv(PERLLIB_MANGLE(p, (STRLEN)(s - p)), |
1084 | (STRLEN)(s - p))); | |
79072805 LW |
1085 | p = s + 1; |
1086 | } else { | |
760ac839 | 1087 | av_push(GvAVn(incgv), newSVpv(PERLLIB_MANGLE(p, 0), 0)); |
79072805 LW |
1088 | break; |
1089 | } | |
1090 | } | |
1091 | } | |
1092 | ||
ab821d7f | 1093 | static void |
1a30305b | 1094 | usage(name) /* XXX move this out into a module ? */ |
4633a7c4 LW |
1095 | char *name; |
1096 | { | |
ab821d7f | 1097 | /* This message really ought to be max 23 lines. |
1098 | * Removed -h because the user already knows that opton. Others? */ | |
1099 | printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name); | |
4633a7c4 | 1100 | printf("\n -0[octal] specify record separator (\\0, if no argument)"); |
ab821d7f | 1101 | printf("\n -a autosplit mode with -n or -p (splits $_ into @F)"); |
4633a7c4 | 1102 | printf("\n -c check syntax only (runs BEGIN and END blocks)"); |
1a30305b | 1103 | printf("\n -d[:debugger] run scripts under debugger"); |
4633a7c4 | 1104 | printf("\n -D[number/list] set debugging flags (argument is a bit mask or flags)"); |
ab821d7f | 1105 | printf("\n -e 'command' one line of script. Several -e's allowed. Omit [programfile]."); |
1106 | printf("\n -F/pattern/ split() pattern for autosplit (-a). The //'s are optional."); | |
4633a7c4 | 1107 | printf("\n -i[extension] edit <> files in place (make backup if extension supplied)"); |
ab821d7f | 1108 | printf("\n -Idirectory specify @INC/#include directory (may be used more then once)"); |
4633a7c4 | 1109 | printf("\n -l[octal] enable line ending processing, specifies line teminator"); |
ab821d7f | 1110 | printf("\n -[mM][-]module.. executes `use/no module...' before executing your script."); |
4633a7c4 LW |
1111 | printf("\n -n assume 'while (<>) { ... }' loop arround your script"); |
1112 | printf("\n -p assume loop like -n but print line also like sed"); | |
1113 | printf("\n -P run script through C preprocessor before compilation"); | |
4633a7c4 LW |
1114 | printf("\n -s enable some switch parsing for switches after script name"); |
1115 | printf("\n -S look for the script using PATH environment variable"); | |
1116 | printf("\n -T turn on tainting checks"); | |
1117 | printf("\n -u dump core after parsing script"); | |
1118 | printf("\n -U allow unsafe operations"); | |
1119 | printf("\n -v print version number and patchlevel of perl"); | |
1a30305b | 1120 | printf("\n -V[:variable] print perl configuration information"); |
ab821d7f | 1121 | printf("\n -w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT."); |
4633a7c4 LW |
1122 | printf("\n -x[directory] strip off text before #!perl line and perhaps cd to directory\n"); |
1123 | } | |
1124 | ||
79072805 LW |
1125 | /* This routine handles any switches that can be given during run */ |
1126 | ||
1127 | char * | |
1128 | moreswitches(s) | |
1129 | char *s; | |
1130 | { | |
1131 | I32 numlen; | |
c07a80fd | 1132 | U32 rschar; |
79072805 LW |
1133 | |
1134 | switch (*s) { | |
1135 | case '0': | |
c07a80fd | 1136 | rschar = scan_oct(s, 4, &numlen); |
1137 | SvREFCNT_dec(nrs); | |
1138 | if (rschar & ~((U8)~0)) | |
1139 | nrs = &sv_undef; | |
1140 | else if (!rschar && numlen >= 2) | |
1141 | nrs = newSVpv("", 0); | |
1142 | else { | |
1143 | char ch = rschar; | |
1144 | nrs = newSVpv(&ch, 1); | |
79072805 LW |
1145 | } |
1146 | return s + numlen; | |
2304df62 AD |
1147 | case 'F': |
1148 | minus_F = TRUE; | |
a0d0e21e | 1149 | splitstr = savepv(s + 1); |
2304df62 AD |
1150 | s += strlen(s); |
1151 | return s; | |
79072805 LW |
1152 | case 'a': |
1153 | minus_a = TRUE; | |
1154 | s++; | |
1155 | return s; | |
1156 | case 'c': | |
1157 | minus_c = TRUE; | |
1158 | s++; | |
1159 | return s; | |
1160 | case 'd': | |
bbce6d69 | 1161 | forbid_setid("-d"); |
4633a7c4 | 1162 | s++; |
c07a80fd | 1163 | if (*s == ':' || *s == '=') { |
4633a7c4 LW |
1164 | sprintf(buf, "use Devel::%s;", ++s); |
1165 | s += strlen(s); | |
1166 | my_setenv("PERL5DB",buf); | |
1167 | } | |
a0d0e21e LW |
1168 | if (!perldb) { |
1169 | perldb = TRUE; | |
1170 | init_debugger(); | |
1171 | } | |
79072805 LW |
1172 | return s; |
1173 | case 'D': | |
1174 | #ifdef DEBUGGING | |
bbce6d69 | 1175 | forbid_setid("-D"); |
79072805 | 1176 | if (isALPHA(s[1])) { |
8990e307 | 1177 | static char debopts[] = "psltocPmfrxuLHXD"; |
79072805 LW |
1178 | char *d; |
1179 | ||
93a17b20 | 1180 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
79072805 LW |
1181 | debug |= 1 << (d - debopts); |
1182 | } | |
1183 | else { | |
1184 | debug = atoi(s+1); | |
1185 | for (s++; isDIGIT(*s); s++) ; | |
1186 | } | |
8990e307 | 1187 | debug |= 0x80000000; |
79072805 LW |
1188 | #else |
1189 | warn("Recompile perl with -DDEBUGGING to use -D switch\n"); | |
a0d0e21e | 1190 | for (s++; isALNUM(*s); s++) ; |
79072805 LW |
1191 | #endif |
1192 | /*SUPPRESS 530*/ | |
1193 | return s; | |
4633a7c4 LW |
1194 | case 'h': |
1195 | usage(origargv[0]); | |
1196 | exit(0); | |
79072805 LW |
1197 | case 'i': |
1198 | if (inplace) | |
1199 | Safefree(inplace); | |
a0d0e21e | 1200 | inplace = savepv(s+1); |
79072805 LW |
1201 | /*SUPPRESS 530*/ |
1202 | for (s = inplace; *s && !isSPACE(*s); s++) ; | |
1203 | *s = '\0'; | |
1204 | break; | |
1205 | case 'I': | |
bbce6d69 | 1206 | forbid_setid("-I"); |
79072805 | 1207 | if (*++s) { |
748a9306 LW |
1208 | char *e; |
1209 | for (e = s; *e && !isSPACE(*e); e++) ; | |
1210 | av_push(GvAVn(incgv),newSVpv(s,e-s)); | |
1211 | if (*e) | |
1212 | return e; | |
79072805 LW |
1213 | } |
1214 | else | |
463ee0b2 | 1215 | croak("No space allowed after -I"); |
79072805 LW |
1216 | break; |
1217 | case 'l': | |
1218 | minus_l = TRUE; | |
1219 | s++; | |
a0d0e21e LW |
1220 | if (ors) |
1221 | Safefree(ors); | |
79072805 | 1222 | if (isDIGIT(*s)) { |
a0d0e21e | 1223 | ors = savepv("\n"); |
79072805 LW |
1224 | orslen = 1; |
1225 | *ors = scan_oct(s, 3 + (*s == '0'), &numlen); | |
1226 | s += numlen; | |
1227 | } | |
1228 | else { | |
c07a80fd | 1229 | if (RsPARA(nrs)) { |
6e72f9df | 1230 | ors = "\n\n"; |
c07a80fd | 1231 | orslen = 2; |
1232 | } | |
1233 | else | |
1234 | ors = SvPV(nrs, orslen); | |
6e72f9df | 1235 | ors = savepvn(ors, orslen); |
79072805 LW |
1236 | } |
1237 | return s; | |
1a30305b | 1238 | case 'M': |
bbce6d69 | 1239 | forbid_setid("-M"); /* XXX ? */ |
1a30305b | 1240 | /* FALL THROUGH */ |
1241 | case 'm': | |
bbce6d69 | 1242 | forbid_setid("-m"); /* XXX ? */ |
1a30305b | 1243 | if (*++s) { |
a5f75d66 AD |
1244 | char *start; |
1245 | char *use = "use "; | |
1246 | /* -M-foo == 'no foo' */ | |
1247 | if (*s == '-') { use = "no "; ++s; } | |
1248 | Sv = newSVpv(use,0); | |
1249 | start = s; | |
1a30305b | 1250 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd | 1251 | while(isALNUM(*s) || *s==':') ++s; |
1252 | if (*s != '=') { | |
1253 | sv_catpv(Sv, start); | |
1254 | if (*(start-1) == 'm') { | |
1255 | if (*s != '\0') | |
1256 | croak("Can't use '%c' after -mname", *s); | |
1257 | sv_catpv( Sv, " ()"); | |
1258 | } | |
1259 | } else { | |
1260 | sv_catpvn(Sv, start, s-start); | |
a5f75d66 | 1261 | sv_catpv(Sv, " split(/,/,q{"); |
c07a80fd | 1262 | sv_catpv(Sv, ++s); |
a5f75d66 | 1263 | sv_catpv(Sv, "})"); |
c07a80fd | 1264 | } |
1a30305b | 1265 | s += strlen(s); |
c07a80fd | 1266 | if (preambleav == NULL) |
1267 | preambleav = newAV(); | |
1268 | av_push(preambleav, Sv); | |
1a30305b | 1269 | } |
1270 | else | |
1271 | croak("No space allowed after -%c", *(s-1)); | |
1272 | return s; | |
79072805 LW |
1273 | case 'n': |
1274 | minus_n = TRUE; | |
1275 | s++; | |
1276 | return s; | |
1277 | case 'p': | |
1278 | minus_p = TRUE; | |
1279 | s++; | |
1280 | return s; | |
1281 | case 's': | |
bbce6d69 | 1282 | forbid_setid("-s"); |
79072805 LW |
1283 | doswitches = TRUE; |
1284 | s++; | |
1285 | return s; | |
463ee0b2 LW |
1286 | case 'T': |
1287 | tainting = TRUE; | |
1288 | s++; | |
1289 | return s; | |
79072805 LW |
1290 | case 'u': |
1291 | do_undump = TRUE; | |
1292 | s++; | |
1293 | return s; | |
1294 | case 'U': | |
1295 | unsafe = TRUE; | |
1296 | s++; | |
1297 | return s; | |
1298 | case 'v': | |
a5f75d66 AD |
1299 | #if defined(SUBVERSION) && SUBVERSION > 0 |
1300 | printf("\nThis is perl, version 5.%03d_%02d", PATCHLEVEL, SUBVERSION); | |
1301 | #else | |
1302 | printf("\nThis is perl, version %s",patchlevel); | |
1303 | #endif | |
1a30305b | 1304 | |
760ac839 LW |
1305 | printf("\n\nCopyright 1987-1996, Larry Wall\n"); |
1306 | printf("\n\t+ suidperl security patch"); | |
79072805 | 1307 | #ifdef MSDOS |
55497cff | 1308 | printf("\n\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); |
1309 | #endif | |
1310 | #ifdef DJGPP | |
1311 | printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n"); | |
4633a7c4 | 1312 | #endif |
79072805 | 1313 | #ifdef OS2 |
5dd60ef7 | 1314 | printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" |
760ac839 | 1315 | "Version 5 port Copyright (c) 1994-1996, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 | 1316 | #endif |
79072805 | 1317 | #ifdef atarist |
760ac839 | 1318 | printf("atariST series port, ++jrb bammi@cadence.com\n"); |
79072805 | 1319 | #endif |
760ac839 | 1320 | printf("\n\ |
79072805 | 1321 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
760ac839 | 1322 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n"); |
79072805 LW |
1323 | exit(0); |
1324 | case 'w': | |
1325 | dowarn = TRUE; | |
1326 | s++; | |
1327 | return s; | |
a0d0e21e | 1328 | case '*': |
79072805 LW |
1329 | case ' ': |
1330 | if (s[1] == '-') /* Additional switches on #! line. */ | |
1331 | return s+2; | |
1332 | break; | |
a0d0e21e | 1333 | case '-': |
79072805 LW |
1334 | case 0: |
1335 | case '\n': | |
1336 | case '\t': | |
1337 | break; | |
a0d0e21e LW |
1338 | case 'P': |
1339 | if (preprocess) | |
1340 | return s+1; | |
1341 | /* FALL THROUGH */ | |
79072805 | 1342 | default: |
a0d0e21e | 1343 | croak("Can't emulate -%.1s on #! line",s); |
79072805 LW |
1344 | } |
1345 | return Nullch; | |
1346 | } | |
1347 | ||
1348 | /* compliments of Tom Christiansen */ | |
1349 | ||
1350 | /* unexec() can be found in the Gnu emacs distribution */ | |
1351 | ||
1352 | void | |
1353 | my_unexec() | |
1354 | { | |
1355 | #ifdef UNEXEC | |
1356 | int status; | |
1357 | extern int etext; | |
1358 | ||
1359 | sprintf (buf, "%s.perldump", origfilename); | |
1360 | sprintf (tokenbuf, "%s/perl", BIN); | |
1361 | ||
1362 | status = unexec(buf, tokenbuf, &etext, sbrk(0), 0); | |
1363 | if (status) | |
760ac839 | 1364 | PerlIO_printf(PerlIO_stderr(), "unexec of %s into %s failed!\n", tokenbuf, buf); |
a0d0e21e | 1365 | exit(status); |
79072805 | 1366 | #else |
a5f75d66 AD |
1367 | # ifdef VMS |
1368 | # include <lib$routines.h> | |
1369 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ | |
1370 | #else | |
79072805 LW |
1371 | ABORT(); /* for use with undump */ |
1372 | #endif | |
a5f75d66 | 1373 | #endif |
79072805 LW |
1374 | } |
1375 | ||
1376 | static void | |
1377 | init_main_stash() | |
1378 | { | |
463ee0b2 | 1379 | GV *gv; |
6e72f9df | 1380 | |
1381 | /* Note that strtab is a rather special HV. Assumptions are made | |
1382 | about not iterating on it, and not adding tie magic to it. | |
1383 | It is properly deallocated in perl_destruct() */ | |
1384 | strtab = newHV(); | |
1385 | HvSHAREKEYS_off(strtab); /* mandatory */ | |
1386 | Newz(506,((XPVHV*)SvANY(strtab))->xhv_array, | |
1387 | sizeof(HE*) * (((XPVHV*)SvANY(strtab))->xhv_max + 1), char); | |
1388 | ||
463ee0b2 | 1389 | curstash = defstash = newHV(); |
79072805 | 1390 | curstname = newSVpv("main",4); |
adbc6bb1 LW |
1391 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
1392 | SvREFCNT_dec(GvHV(gv)); | |
1393 | GvHV(gv) = (HV*)SvREFCNT_inc(defstash); | |
463ee0b2 | 1394 | SvREADONLY_on(gv); |
a0d0e21e | 1395 | HvNAME(defstash) = savepv("main"); |
85e6fe83 | 1396 | incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); |
a5f75d66 | 1397 | GvMULTI_on(incgv); |
a0d0e21e | 1398 | defgv = gv_fetchpv("_",TRUE, SVt_PVAV); |
4633a7c4 | 1399 | errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); |
a5f75d66 | 1400 | GvMULTI_on(errgv); |
552a7a9b | 1401 | sv_setpvn(GvSV(errgv), "", 0); |
8990e307 LW |
1402 | curstash = defstash; |
1403 | compiling.cop_stash = defstash; | |
adbc6bb1 | 1404 | debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); |
4633a7c4 LW |
1405 | /* We must init $/ before switches are processed. */ |
1406 | sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1); | |
79072805 LW |
1407 | } |
1408 | ||
a0d0e21e LW |
1409 | #ifdef CAN_PROTOTYPE |
1410 | static void | |
1411 | open_script(char *scriptname, bool dosearch, SV *sv) | |
1412 | #else | |
79072805 LW |
1413 | static void |
1414 | open_script(scriptname,dosearch,sv) | |
1415 | char *scriptname; | |
1416 | bool dosearch; | |
1417 | SV *sv; | |
a0d0e21e | 1418 | #endif |
79072805 LW |
1419 | { |
1420 | char *xfound = Nullch; | |
1421 | char *xfailed = Nullch; | |
1422 | register char *s; | |
1423 | I32 len; | |
a38d6535 LW |
1424 | int retval; |
1425 | #if defined(DOSISH) && !defined(OS2) && !defined(atarist) | |
1426 | #define SEARCH_EXTS ".bat", ".cmd", NULL | |
1427 | #endif | |
ab821d7f | 1428 | #ifdef VMS |
1429 | # define SEARCH_EXTS ".pl", ".com", NULL | |
1430 | #endif | |
a38d6535 LW |
1431 | /* additional extensions to try in each dir if scriptname not found */ |
1432 | #ifdef SEARCH_EXTS | |
1433 | char *ext[] = { SEARCH_EXTS }; | |
1434 | int extidx = (strchr(scriptname,'.')) ? -1 : 0; /* has ext already */ | |
1435 | #endif | |
79072805 | 1436 | |
c07a80fd | 1437 | #ifdef VMS |
6e72f9df | 1438 | if (dosearch) { |
1439 | int hasdir, idx = 0, deftypes = 1; | |
1440 | ||
1441 | hasdir = (strpbrk(scriptname,":[</") != Nullch) ; | |
1442 | /* The first time through, just add SEARCH_EXTS to whatever we | |
1443 | * already have, so we can check for default file types. */ | |
1444 | while (deftypes || (!hasdir && my_trnlnm("DCL$PATH",tokenbuf,idx++)) ) { | |
1445 | if (deftypes) { deftypes = 0; *tokenbuf = '\0'; } | |
c07a80fd | 1446 | strcat(tokenbuf,scriptname); |
1447 | #else /* !VMS */ | |
93a17b20 | 1448 | if (dosearch && !strchr(scriptname, '/') && (s = getenv("PATH"))) { |
79072805 LW |
1449 | |
1450 | bufend = s + strlen(s); | |
1451 | while (*s) { | |
1452 | #ifndef DOSISH | |
1453 | s = cpytill(tokenbuf,s,bufend,':',&len); | |
1454 | #else | |
1455 | #ifdef atarist | |
1456 | for (len = 0; *s && *s != ',' && *s != ';'; tokenbuf[len++] = *s++); | |
1457 | tokenbuf[len] = '\0'; | |
1458 | #else | |
1459 | for (len = 0; *s && *s != ';'; tokenbuf[len++] = *s++); | |
1460 | tokenbuf[len] = '\0'; | |
1461 | #endif | |
1462 | #endif | |
1463 | if (*s) | |
1464 | s++; | |
1465 | #ifndef DOSISH | |
1466 | if (len && tokenbuf[len-1] != '/') | |
1467 | #else | |
1468 | #ifdef atarist | |
1469 | if (len && ((tokenbuf[len-1] != '\\') && (tokenbuf[len-1] != '/'))) | |
1470 | #else | |
1471 | if (len && tokenbuf[len-1] != '\\') | |
1472 | #endif | |
1473 | #endif | |
1474 | (void)strcat(tokenbuf+len,"/"); | |
1475 | (void)strcat(tokenbuf+len,scriptname); | |
c07a80fd | 1476 | #endif /* !VMS */ |
a38d6535 LW |
1477 | |
1478 | #ifdef SEARCH_EXTS | |
1479 | len = strlen(tokenbuf); | |
1480 | if (extidx > 0) /* reset after previous loop */ | |
1481 | extidx = 0; | |
1482 | do { | |
1483 | #endif | |
760ac839 | 1484 | DEBUG_p(PerlIO_printf(Perl_debug_log, "Looking for %s\n",tokenbuf)); |
a38d6535 LW |
1485 | retval = Stat(tokenbuf,&statbuf); |
1486 | #ifdef SEARCH_EXTS | |
1487 | } while ( retval < 0 /* not there */ | |
1488 | && extidx>=0 && ext[extidx] /* try an extension? */ | |
1489 | && strcpy(tokenbuf+len, ext[extidx++]) | |
1490 | ); | |
1491 | #endif | |
1492 | if (retval < 0) | |
79072805 LW |
1493 | continue; |
1494 | if (S_ISREG(statbuf.st_mode) | |
1495 | && cando(S_IRUSR,TRUE,&statbuf) && cando(S_IXUSR,TRUE,&statbuf)) { | |
1496 | xfound = tokenbuf; /* bingo! */ | |
1497 | break; | |
1498 | } | |
1499 | if (!xfailed) | |
a0d0e21e | 1500 | xfailed = savepv(tokenbuf); |
79072805 LW |
1501 | } |
1502 | if (!xfound) | |
463ee0b2 | 1503 | croak("Can't execute %s", xfailed ? xfailed : scriptname ); |
79072805 LW |
1504 | if (xfailed) |
1505 | Safefree(xfailed); | |
1506 | scriptname = xfound; | |
1507 | } | |
1508 | ||
96436eeb | 1509 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { |
1510 | char *s = scriptname + 8; | |
1511 | fdscript = atoi(s); | |
1512 | while (isDIGIT(*s)) | |
1513 | s++; | |
1514 | if (*s) | |
1515 | scriptname = s + 1; | |
1516 | } | |
1517 | else | |
1518 | fdscript = -1; | |
ab821d7f | 1519 | origfilename = savepv(e_tmpname ? "-e" : scriptname); |
79072805 LW |
1520 | curcop->cop_filegv = gv_fetchfile(origfilename); |
1521 | if (strEQ(origfilename,"-")) | |
1522 | scriptname = ""; | |
96436eeb | 1523 | if (fdscript >= 0) { |
760ac839 | 1524 | rsfp = PerlIO_fdopen(fdscript,"r"); |
96436eeb | 1525 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
7aa04957 CS |
1526 | if (rsfp) |
1527 | fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ | |
96436eeb | 1528 | #endif |
1529 | } | |
1530 | else if (preprocess) { | |
79072805 LW |
1531 | char *cpp = CPPSTDIN; |
1532 | ||
1533 | if (strEQ(cpp,"cppstdin")) | |
1534 | sprintf(tokenbuf, "%s/%s", SCRIPTDIR, cpp); | |
1535 | else | |
1536 | sprintf(tokenbuf, "%s", cpp); | |
1537 | sv_catpv(sv,"-I"); | |
fed7345c | 1538 | sv_catpv(sv,PRIVLIB_EXP); |
79072805 LW |
1539 | #ifdef MSDOS |
1540 | (void)sprintf(buf, "\ | |
1541 | sed %s -e \"/^[^#]/b\" \ | |
1542 | -e \"/^#[ ]*include[ ]/b\" \ | |
1543 | -e \"/^#[ ]*define[ ]/b\" \ | |
1544 | -e \"/^#[ ]*if[ ]/b\" \ | |
1545 | -e \"/^#[ ]*ifdef[ ]/b\" \ | |
1546 | -e \"/^#[ ]*ifndef[ ]/b\" \ | |
1547 | -e \"/^#[ ]*else/b\" \ | |
1548 | -e \"/^#[ ]*elif[ ]/b\" \ | |
1549 | -e \"/^#[ ]*undef[ ]/b\" \ | |
1550 | -e \"/^#[ ]*endif/b\" \ | |
1551 | -e \"s/^#.*//\" \ | |
1552 | %s | %s -C %s %s", | |
1553 | (doextract ? "-e \"1,/^#/d\n\"" : ""), | |
1554 | #else | |
1555 | (void)sprintf(buf, "\ | |
1556 | %s %s -e '/^[^#]/b' \ | |
1557 | -e '/^#[ ]*include[ ]/b' \ | |
1558 | -e '/^#[ ]*define[ ]/b' \ | |
1559 | -e '/^#[ ]*if[ ]/b' \ | |
1560 | -e '/^#[ ]*ifdef[ ]/b' \ | |
1561 | -e '/^#[ ]*ifndef[ ]/b' \ | |
1562 | -e '/^#[ ]*else/b' \ | |
1563 | -e '/^#[ ]*elif[ ]/b' \ | |
1564 | -e '/^#[ ]*undef[ ]/b' \ | |
1565 | -e '/^#[ ]*endif/b' \ | |
1566 | -e 's/^[ ]*#.*//' \ | |
1567 | %s | %s -C %s %s", | |
1568 | #ifdef LOC_SED | |
1569 | LOC_SED, | |
1570 | #else | |
1571 | "sed", | |
1572 | #endif | |
1573 | (doextract ? "-e '1,/^#/d\n'" : ""), | |
1574 | #endif | |
463ee0b2 | 1575 | scriptname, tokenbuf, SvPV(sv, na), CPPMINUS); |
79072805 LW |
1576 | doextract = FALSE; |
1577 | #ifdef IAMSUID /* actually, this is caught earlier */ | |
1578 | if (euid != uid && !euid) { /* if running suidperl */ | |
1579 | #ifdef HAS_SETEUID | |
1580 | (void)seteuid(uid); /* musn't stay setuid root */ | |
1581 | #else | |
1582 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1583 | (void)setreuid((Uid_t)-1, uid); |
1584 | #else | |
1585 | #ifdef HAS_SETRESUID | |
1586 | (void)setresuid((Uid_t)-1, uid, (Uid_t)-1); | |
79072805 LW |
1587 | #else |
1588 | setuid(uid); | |
1589 | #endif | |
1590 | #endif | |
85e6fe83 | 1591 | #endif |
79072805 | 1592 | if (geteuid() != uid) |
463ee0b2 | 1593 | croak("Can't do seteuid!\n"); |
79072805 LW |
1594 | } |
1595 | #endif /* IAMSUID */ | |
1596 | rsfp = my_popen(buf,"r"); | |
1597 | } | |
1598 | else if (!*scriptname) { | |
bbce6d69 | 1599 | forbid_setid("program input from stdin"); |
760ac839 | 1600 | rsfp = PerlIO_stdin(); |
79072805 | 1601 | } |
96436eeb | 1602 | else { |
760ac839 | 1603 | rsfp = PerlIO_open(scriptname,"r"); |
96436eeb | 1604 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
7aa04957 CS |
1605 | if (rsfp) |
1606 | fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ | |
96436eeb | 1607 | #endif |
1608 | } | |
5dd60ef7 | 1609 | if (e_tmpname) { |
1610 | e_fp = rsfp; | |
1611 | } | |
7aa04957 | 1612 | if (!rsfp) { |
13281fa4 | 1613 | #ifdef DOSUID |
a687059c | 1614 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
a0d0e21e | 1615 | if (euid && Stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 && |
13281fa4 | 1616 | statbuf.st_mode & (S_ISUID|S_ISGID)) { |
27e2fb84 | 1617 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c | 1618 | execv(buf, origargv); /* try again */ |
463ee0b2 | 1619 | croak("Can't do setuid\n"); |
13281fa4 LW |
1620 | } |
1621 | #endif | |
1622 | #endif | |
463ee0b2 | 1623 | croak("Can't open perl script \"%s\": %s\n", |
2304df62 | 1624 | SvPVX(GvSV(curcop->cop_filegv)), Strerror(errno)); |
13281fa4 | 1625 | } |
79072805 | 1626 | } |
8d063cd8 | 1627 | |
79072805 | 1628 | static void |
96436eeb | 1629 | validate_suid(validarg, scriptname) |
79072805 | 1630 | char *validarg; |
96436eeb | 1631 | char *scriptname; |
79072805 | 1632 | { |
96436eeb | 1633 | int which; |
1634 | ||
13281fa4 LW |
1635 | /* do we need to emulate setuid on scripts? */ |
1636 | ||
1637 | /* This code is for those BSD systems that have setuid #! scripts disabled | |
1638 | * in the kernel because of a security problem. Merely defining DOSUID | |
1639 | * in perl will not fix that problem, but if you have disabled setuid | |
1640 | * scripts in the kernel, this will attempt to emulate setuid and setgid | |
1641 | * on scripts that have those now-otherwise-useless bits set. The setuid | |
27e2fb84 LW |
1642 | * root version must be called suidperl or sperlN.NNN. If regular perl |
1643 | * discovers that it has opened a setuid script, it calls suidperl with | |
1644 | * the same argv that it had. If suidperl finds that the script it has | |
1645 | * just opened is NOT setuid root, it sets the effective uid back to the | |
1646 | * uid. We don't just make perl setuid root because that loses the | |
1647 | * effective uid we had before invoking perl, if it was different from the | |
1648 | * uid. | |
13281fa4 LW |
1649 | * |
1650 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must | |
1651 | * be defined in suidperl only. suidperl must be setuid root. The | |
1652 | * Configure script will set this up for you if you want it. | |
1653 | */ | |
a687059c | 1654 | |
13281fa4 | 1655 | #ifdef DOSUID |
6e72f9df | 1656 | char *s, *s2; |
a0d0e21e | 1657 | |
760ac839 | 1658 | if (Fstat(PerlIO_fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */ |
463ee0b2 | 1659 | croak("Can't stat script \"%s\"",origfilename); |
96436eeb | 1660 | if (fdscript < 0 && statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 | 1661 | I32 len; |
13281fa4 | 1662 | |
a687059c | 1663 | #ifdef IAMSUID |
fe14fcc3 | 1664 | #ifndef HAS_SETREUID |
a687059c LW |
1665 | /* On this access check to make sure the directories are readable, |
1666 | * there is actually a small window that the user could use to make | |
1667 | * filename point to an accessible directory. So there is a faint | |
1668 | * chance that someone could execute a setuid script down in a | |
1669 | * non-accessible directory. I don't know what to do about that. | |
1670 | * But I don't think it's too important. The manual lies when | |
1671 | * it says access() is useful in setuid programs. | |
1672 | */ | |
463ee0b2 LW |
1673 | if (access(SvPVX(GvSV(curcop->cop_filegv)),1)) /*double check*/ |
1674 | croak("Permission denied"); | |
a687059c LW |
1675 | #else |
1676 | /* If we can swap euid and uid, then we can determine access rights | |
1677 | * with a simple stat of the file, and then compare device and | |
1678 | * inode to make sure we did stat() on the same file we opened. | |
1679 | * Then we just have to make sure he or she can execute it. | |
1680 | */ | |
1681 | { | |
1682 | struct stat tmpstatbuf; | |
1683 | ||
85e6fe83 LW |
1684 | if ( |
1685 | #ifdef HAS_SETREUID | |
1686 | setreuid(euid,uid) < 0 | |
a0d0e21e LW |
1687 | #else |
1688 | # if HAS_SETRESUID | |
85e6fe83 | 1689 | setresuid(euid,uid,(Uid_t)-1) < 0 |
a0d0e21e | 1690 | # endif |
85e6fe83 LW |
1691 | #endif |
1692 | || getuid() != euid || geteuid() != uid) | |
463ee0b2 | 1693 | croak("Can't swap uid and euid"); /* really paranoid */ |
a0d0e21e | 1694 | if (Stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0) |
463ee0b2 | 1695 | croak("Permission denied"); /* testing full pathname here */ |
a687059c LW |
1696 | if (tmpstatbuf.st_dev != statbuf.st_dev || |
1697 | tmpstatbuf.st_ino != statbuf.st_ino) { | |
760ac839 | 1698 | (void)PerlIO_close(rsfp); |
79072805 | 1699 | if (rsfp = my_popen("/bin/mail root","w")) { /* heh, heh */ |
760ac839 | 1700 | PerlIO_printf(rsfp, |
a687059c LW |
1701 | "User %d tried to run dev %d ino %d in place of dev %d ino %d!\n\ |
1702 | (Filename of set-id script was %s, uid %d gid %d.)\n\nSincerely,\nperl\n", | |
1703 | uid,tmpstatbuf.st_dev, tmpstatbuf.st_ino, | |
1704 | statbuf.st_dev, statbuf.st_ino, | |
463ee0b2 | 1705 | SvPVX(GvSV(curcop->cop_filegv)), |
20188a90 | 1706 | statbuf.st_uid, statbuf.st_gid); |
79072805 | 1707 | (void)my_pclose(rsfp); |
a687059c | 1708 | } |
463ee0b2 | 1709 | croak("Permission denied\n"); |
a687059c | 1710 | } |
85e6fe83 LW |
1711 | if ( |
1712 | #ifdef HAS_SETREUID | |
1713 | setreuid(uid,euid) < 0 | |
a0d0e21e LW |
1714 | #else |
1715 | # if defined(HAS_SETRESUID) | |
85e6fe83 | 1716 | setresuid(uid,euid,(Uid_t)-1) < 0 |
a0d0e21e | 1717 | # endif |
85e6fe83 LW |
1718 | #endif |
1719 | || getuid() != uid || geteuid() != euid) | |
463ee0b2 | 1720 | croak("Can't reswap uid and euid"); |
27e2fb84 | 1721 | if (!cando(S_IXUSR,FALSE,&statbuf)) /* can real uid exec? */ |
463ee0b2 | 1722 | croak("Permission denied\n"); |
a687059c | 1723 | } |
fe14fcc3 | 1724 | #endif /* HAS_SETREUID */ |
a687059c LW |
1725 | #endif /* IAMSUID */ |
1726 | ||
27e2fb84 | 1727 | if (!S_ISREG(statbuf.st_mode)) |
463ee0b2 | 1728 | croak("Permission denied"); |
27e2fb84 | 1729 | if (statbuf.st_mode & S_IWOTH) |
463ee0b2 | 1730 | croak("Setuid/gid script is writable by world"); |
13281fa4 | 1731 | doswitches = FALSE; /* -s is insecure in suid */ |
79072805 | 1732 | curcop->cop_line++; |
760ac839 LW |
1733 | if (sv_gets(linestr, rsfp, 0) == Nullch || |
1734 | strnNE(SvPV(linestr,na),"#!",2) ) /* required even on Sys V */ | |
463ee0b2 | 1735 | croak("No #! line"); |
760ac839 | 1736 | s = SvPV(linestr,na)+2; |
663a0e37 | 1737 | if (*s == ' ') s++; |
45d8adaa | 1738 | while (!isSPACE(*s)) s++; |
760ac839 | 1739 | for (s2 = s; (s2 > SvPV(linestr,na)+2 && |
6e72f9df | 1740 | (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ; |
1741 | if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ | |
463ee0b2 | 1742 | croak("Not a perl script"); |
a687059c | 1743 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 LW |
1744 | /* |
1745 | * #! arg must be what we saw above. They can invoke it by | |
1746 | * mentioning suidperl explicitly, but they may not add any strange | |
1747 | * arguments beyond what #! says if they do invoke suidperl that way. | |
1748 | */ | |
1749 | len = strlen(validarg); | |
1750 | if (strEQ(validarg," PHOOEY ") || | |
45d8adaa | 1751 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
463ee0b2 | 1752 | croak("Args must match #! line"); |
a687059c LW |
1753 | |
1754 | #ifndef IAMSUID | |
1755 | if (euid != uid && (statbuf.st_mode & S_ISUID) && | |
1756 | euid == statbuf.st_uid) | |
1757 | if (!do_undump) | |
463ee0b2 | 1758 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
1759 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1760 | #endif /* IAMSUID */ | |
13281fa4 LW |
1761 | |
1762 | if (euid) { /* oops, we're not the setuid root perl */ | |
760ac839 | 1763 | (void)PerlIO_close(rsfp); |
13281fa4 | 1764 | #ifndef IAMSUID |
27e2fb84 | 1765 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c | 1766 | execv(buf, origargv); /* try again */ |
13281fa4 | 1767 | #endif |
463ee0b2 | 1768 | croak("Can't do setuid\n"); |
13281fa4 LW |
1769 | } |
1770 | ||
83025b21 | 1771 | if (statbuf.st_mode & S_ISGID && statbuf.st_gid != egid) { |
fe14fcc3 | 1772 | #ifdef HAS_SETEGID |
a687059c LW |
1773 | (void)setegid(statbuf.st_gid); |
1774 | #else | |
fe14fcc3 | 1775 | #ifdef HAS_SETREGID |
85e6fe83 LW |
1776 | (void)setregid((Gid_t)-1,statbuf.st_gid); |
1777 | #else | |
1778 | #ifdef HAS_SETRESGID | |
1779 | (void)setresgid((Gid_t)-1,statbuf.st_gid,(Gid_t)-1); | |
a687059c LW |
1780 | #else |
1781 | setgid(statbuf.st_gid); | |
1782 | #endif | |
1783 | #endif | |
85e6fe83 | 1784 | #endif |
83025b21 | 1785 | if (getegid() != statbuf.st_gid) |
463ee0b2 | 1786 | croak("Can't do setegid!\n"); |
83025b21 | 1787 | } |
a687059c LW |
1788 | if (statbuf.st_mode & S_ISUID) { |
1789 | if (statbuf.st_uid != euid) | |
fe14fcc3 | 1790 | #ifdef HAS_SETEUID |
a687059c LW |
1791 | (void)seteuid(statbuf.st_uid); /* all that for this */ |
1792 | #else | |
fe14fcc3 | 1793 | #ifdef HAS_SETREUID |
85e6fe83 LW |
1794 | (void)setreuid((Uid_t)-1,statbuf.st_uid); |
1795 | #else | |
1796 | #ifdef HAS_SETRESUID | |
1797 | (void)setresuid((Uid_t)-1,statbuf.st_uid,(Uid_t)-1); | |
a687059c LW |
1798 | #else |
1799 | setuid(statbuf.st_uid); | |
1800 | #endif | |
1801 | #endif | |
85e6fe83 | 1802 | #endif |
83025b21 | 1803 | if (geteuid() != statbuf.st_uid) |
463ee0b2 | 1804 | croak("Can't do seteuid!\n"); |
a687059c | 1805 | } |
83025b21 | 1806 | else if (uid) { /* oops, mustn't run as root */ |
fe14fcc3 | 1807 | #ifdef HAS_SETEUID |
85e6fe83 | 1808 | (void)seteuid((Uid_t)uid); |
a687059c | 1809 | #else |
fe14fcc3 | 1810 | #ifdef HAS_SETREUID |
85e6fe83 | 1811 | (void)setreuid((Uid_t)-1,(Uid_t)uid); |
a687059c | 1812 | #else |
85e6fe83 LW |
1813 | #ifdef HAS_SETRESUID |
1814 | (void)setresuid((Uid_t)-1,(Uid_t)uid,(Uid_t)-1); | |
1815 | #else | |
1816 | setuid((Uid_t)uid); | |
1817 | #endif | |
a687059c LW |
1818 | #endif |
1819 | #endif | |
83025b21 | 1820 | if (geteuid() != uid) |
463ee0b2 | 1821 | croak("Can't do seteuid!\n"); |
83025b21 | 1822 | } |
748a9306 | 1823 | init_ids(); |
27e2fb84 | 1824 | if (!cando(S_IXUSR,TRUE,&statbuf)) |
463ee0b2 | 1825 | croak("Permission denied\n"); /* they can't do this */ |
13281fa4 LW |
1826 | } |
1827 | #ifdef IAMSUID | |
1828 | else if (preprocess) | |
463ee0b2 | 1829 | croak("-P not allowed for setuid/setgid script\n"); |
96436eeb | 1830 | else if (fdscript >= 0) |
1831 | croak("fd script not allowed in suidperl\n"); | |
13281fa4 | 1832 | else |
463ee0b2 | 1833 | croak("Script is not setuid/setgid in suidperl\n"); |
96436eeb | 1834 | |
1835 | /* We absolutely must clear out any saved ids here, so we */ | |
1836 | /* exec the real perl, substituting fd script for scriptname. */ | |
1837 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ | |
760ac839 LW |
1838 | PerlIO_rewind(rsfp); |
1839 | lseek(PerlIO_fileno(rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
96436eeb | 1840 | for (which = 1; origargv[which] && origargv[which] != scriptname; which++) ; |
1841 | if (!origargv[which]) | |
1842 | croak("Permission denied"); | |
760ac839 | 1843 | (void)sprintf(buf, "/dev/fd/%d/%.127s", PerlIO_fileno(rsfp), origargv[which]); |
96436eeb | 1844 | origargv[which] = buf; |
1845 | ||
1846 | #if defined(HAS_FCNTL) && defined(F_SETFD) | |
760ac839 | 1847 | fcntl(PerlIO_fileno(rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb | 1848 | #endif |
1849 | ||
1850 | (void)sprintf(tokenbuf, "%s/perl%s", BIN, patchlevel); | |
1851 | execv(tokenbuf, origargv); /* try again */ | |
1852 | croak("Can't do setuid\n"); | |
13281fa4 | 1853 | #endif /* IAMSUID */ |
a687059c | 1854 | #else /* !DOSUID */ |
a687059c LW |
1855 | if (euid != uid || egid != gid) { /* (suidperl doesn't exist, in fact) */ |
1856 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW | |
760ac839 | 1857 | Fstat(PerlIO_fileno(rsfp),&statbuf); /* may be either wrapped or real suid */ |
a687059c LW |
1858 | if ((euid != uid && euid == statbuf.st_uid && statbuf.st_mode & S_ISUID) |
1859 | || | |
1860 | (egid != gid && egid == statbuf.st_gid && statbuf.st_mode & S_ISGID) | |
1861 | ) | |
1862 | if (!do_undump) | |
463ee0b2 | 1863 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
1864 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1865 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ | |
1866 | /* not set-id, must be wrapped */ | |
a687059c | 1867 | } |
13281fa4 | 1868 | #endif /* DOSUID */ |
79072805 | 1869 | } |
13281fa4 | 1870 | |
79072805 LW |
1871 | static void |
1872 | find_beginning() | |
1873 | { | |
6e72f9df | 1874 | register char *s, *s2; |
33b78306 LW |
1875 | |
1876 | /* skip forward in input to the real script? */ | |
1877 | ||
bbce6d69 | 1878 | forbid_setid("-x"); |
33b78306 | 1879 | while (doextract) { |
79072805 | 1880 | if ((s = sv_gets(linestr, rsfp, 0)) == Nullch) |
463ee0b2 | 1881 | croak("No Perl script found in input\n"); |
6e72f9df | 1882 | if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) { |
760ac839 | 1883 | PerlIO_ungetc(rsfp, '\n'); /* to keep line count right */ |
33b78306 | 1884 | doextract = FALSE; |
6e72f9df | 1885 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
1886 | s2 = s; | |
1887 | while (*s == ' ' || *s == '\t') s++; | |
1888 | if (*s++ == '-') { | |
1889 | while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--; | |
1890 | if (strnEQ(s2-4,"perl",4)) | |
1891 | /*SUPPRESS 530*/ | |
1892 | while (s = moreswitches(s)) ; | |
33b78306 | 1893 | } |
79072805 | 1894 | if (cddir && chdir(cddir) < 0) |
463ee0b2 | 1895 | croak("Can't chdir to %s",cddir); |
83025b21 LW |
1896 | } |
1897 | } | |
1898 | } | |
1899 | ||
79072805 | 1900 | static void |
748a9306 | 1901 | init_ids() |
352d5a3a | 1902 | { |
748a9306 LW |
1903 | uid = (int)getuid(); |
1904 | euid = (int)geteuid(); | |
1905 | gid = (int)getgid(); | |
1906 | egid = (int)getegid(); | |
1907 | #ifdef VMS | |
1908 | uid |= gid << 16; | |
1909 | euid |= egid << 16; | |
1910 | #endif | |
4633a7c4 | 1911 | tainting |= (uid && (euid != uid || egid != gid)); |
748a9306 | 1912 | } |
79072805 | 1913 | |
748a9306 | 1914 | static void |
bbce6d69 | 1915 | forbid_setid(s) |
1916 | char *s; | |
1917 | { | |
1918 | if (euid != uid) | |
1919 | croak("No %s allowed while running setuid", s); | |
1920 | if (egid != gid) | |
1921 | croak("No %s allowed while running setgid", s); | |
1922 | } | |
1923 | ||
1924 | static void | |
748a9306 LW |
1925 | init_debugger() |
1926 | { | |
79072805 | 1927 | curstash = debstash; |
748a9306 | 1928 | dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); |
79072805 | 1929 | AvREAL_off(dbargs); |
a0d0e21e LW |
1930 | DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); |
1931 | DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); | |
748a9306 LW |
1932 | DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); |
1933 | DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); | |
c07a80fd | 1934 | sv_setiv(DBsingle, 0); |
748a9306 | 1935 | DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); |
c07a80fd | 1936 | sv_setiv(DBtrace, 0); |
748a9306 | 1937 | DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); |
c07a80fd | 1938 | sv_setiv(DBsignal, 0); |
79072805 | 1939 | curstash = defstash; |
352d5a3a LW |
1940 | } |
1941 | ||
79072805 | 1942 | static void |
8990e307 | 1943 | init_stacks() |
79072805 | 1944 | { |
6e72f9df | 1945 | curstack = newAV(); |
1946 | mainstack = curstack; /* remember in case we switch stacks */ | |
1947 | AvREAL_off(curstack); /* not a real array */ | |
1948 | av_extend(curstack,127); | |
79072805 | 1949 | |
6e72f9df | 1950 | stack_base = AvARRAY(curstack); |
79072805 | 1951 | stack_sp = stack_base; |
8990e307 | 1952 | stack_max = stack_base + 127; |
79072805 | 1953 | |
6e72f9df | 1954 | /* Shouldn't these stacks be per-interpreter? */ |
1955 | if (markstack) { | |
1956 | markstack_ptr = markstack; | |
1957 | } else { | |
1958 | New(54,markstack,64,I32); | |
1959 | markstack_ptr = markstack; | |
1960 | markstack_max = markstack + 64; | |
1961 | } | |
79072805 | 1962 | |
6e72f9df | 1963 | if (scopestack) { |
1964 | scopestack_ix = 0; | |
1965 | } else { | |
1966 | New(54,scopestack,32,I32); | |
1967 | scopestack_ix = 0; | |
1968 | scopestack_max = 32; | |
1969 | } | |
79072805 | 1970 | |
6e72f9df | 1971 | if (savestack) { |
1972 | savestack_ix = 0; | |
1973 | } else { | |
1974 | New(54,savestack,128,ANY); | |
1975 | savestack_ix = 0; | |
1976 | savestack_max = 128; | |
1977 | } | |
79072805 | 1978 | |
6e72f9df | 1979 | if (retstack) { |
1980 | retstack_ix = 0; | |
1981 | } else { | |
1982 | New(54,retstack,16,OP*); | |
1983 | retstack_ix = 0; | |
1984 | retstack_max = 16; | |
1985 | } | |
8d063cd8 | 1986 | |
a5f75d66 AD |
1987 | cxstack_max = 8192 / sizeof(CONTEXT) - 2; /* Use most of 8K. */ |
1988 | New(50,cxstack,cxstack_max + 1,CONTEXT); | |
8990e307 | 1989 | cxstack_ix = -1; |
8990e307 LW |
1990 | |
1991 | New(50,tmps_stack,128,SV*); | |
1992 | tmps_ix = -1; | |
1993 | tmps_max = 128; | |
1994 | ||
79072805 LW |
1995 | DEBUG( { |
1996 | New(51,debname,128,char); | |
1997 | New(52,debdelim,128,char); | |
1998 | } ) | |
378cc40b | 1999 | } |
33b78306 | 2000 | |
6e72f9df | 2001 | static void |
2002 | nuke_stacks() | |
2003 | { | |
2004 | Safefree(cxstack); | |
2005 | Safefree(tmps_stack); | |
2006 | } | |
2007 | ||
760ac839 | 2008 | static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
7aa04957 | 2009 | |
79072805 | 2010 | static void |
8990e307 LW |
2011 | init_lexer() |
2012 | { | |
a0d0e21e | 2013 | tmpfp = rsfp; |
8990e307 LW |
2014 | lex_start(linestr); |
2015 | rsfp = tmpfp; | |
2016 | subname = newSVpv("main",4); | |
2017 | } | |
2018 | ||
2019 | static void | |
79072805 | 2020 | init_predump_symbols() |
45d8adaa | 2021 | { |
93a17b20 | 2022 | GV *tmpgv; |
a0d0e21e | 2023 | GV *othergv; |
79072805 | 2024 | |
85e6fe83 | 2025 | sv_setpvn(GvSV(gv_fetchpv("\"", TRUE, SVt_PV)), " ", 1); |
79072805 | 2026 | |
85e6fe83 | 2027 | stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
a5f75d66 | 2028 | GvMULTI_on(stdingv); |
760ac839 | 2029 | IoIFP(GvIOp(stdingv)) = PerlIO_stdin(); |
adbc6bb1 | 2030 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 | 2031 | GvMULTI_on(tmpgv); |
a0d0e21e | 2032 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(stdingv)); |
79072805 | 2033 | |
85e6fe83 | 2034 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 | 2035 | GvMULTI_on(tmpgv); |
760ac839 | 2036 | IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout(); |
4633a7c4 | 2037 | setdefout(tmpgv); |
adbc6bb1 | 2038 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 | 2039 | GvMULTI_on(tmpgv); |
a0d0e21e | 2040 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(defoutgv)); |
79072805 | 2041 | |
a0d0e21e | 2042 | othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
a5f75d66 | 2043 | GvMULTI_on(othergv); |
760ac839 | 2044 | IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr(); |
adbc6bb1 | 2045 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 | 2046 | GvMULTI_on(tmpgv); |
a0d0e21e | 2047 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv)); |
79072805 LW |
2048 | |
2049 | statname = NEWSV(66,0); /* last filename we did stat on */ | |
ab821d7f | 2050 | |
6e72f9df | 2051 | if (!osname) |
2052 | osname = savepv(OSNAME); | |
79072805 | 2053 | } |
33b78306 | 2054 | |
79072805 LW |
2055 | static void |
2056 | init_postdump_symbols(argc,argv,env) | |
2057 | register int argc; | |
2058 | register char **argv; | |
2059 | register char **env; | |
33b78306 | 2060 | { |
79072805 LW |
2061 | char *s; |
2062 | SV *sv; | |
2063 | GV* tmpgv; | |
fe14fcc3 | 2064 | |
79072805 LW |
2065 | argc--,argv++; /* skip name of script */ |
2066 | if (doswitches) { | |
2067 | for (; argc > 0 && **argv == '-'; argc--,argv++) { | |
2068 | if (!argv[0][1]) | |
2069 | break; | |
2070 | if (argv[0][1] == '-') { | |
2071 | argc--,argv++; | |
2072 | break; | |
2073 | } | |
93a17b20 | 2074 | if (s = strchr(argv[0], '=')) { |
79072805 | 2075 | *s++ = '\0'; |
85e6fe83 | 2076 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 LW |
2077 | } |
2078 | else | |
85e6fe83 | 2079 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 | 2080 | } |
79072805 LW |
2081 | } |
2082 | toptarget = NEWSV(0,0); | |
2083 | sv_upgrade(toptarget, SVt_PVFM); | |
2084 | sv_setpvn(toptarget, "", 0); | |
748a9306 | 2085 | bodytarget = NEWSV(0,0); |
79072805 LW |
2086 | sv_upgrade(bodytarget, SVt_PVFM); |
2087 | sv_setpvn(bodytarget, "", 0); | |
2088 | formtarget = bodytarget; | |
2089 | ||
bbce6d69 | 2090 | TAINT; |
85e6fe83 | 2091 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
79072805 LW |
2092 | sv_setpv(GvSV(tmpgv),origfilename); |
2093 | magicname("0", "0", 1); | |
2094 | } | |
85e6fe83 | 2095 | if (tmpgv = gv_fetchpv("\024",TRUE, SVt_PV)) |
79072805 | 2096 | time(&basetime); |
85e6fe83 | 2097 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
79072805 | 2098 | sv_setpv(GvSV(tmpgv),origargv[0]); |
85e6fe83 | 2099 | if (argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { |
a5f75d66 | 2100 | GvMULTI_on(argvgv); |
79072805 LW |
2101 | (void)gv_AVadd(argvgv); |
2102 | av_clear(GvAVn(argvgv)); | |
2103 | for (; argc > 0; argc--,argv++) { | |
a0d0e21e | 2104 | av_push(GvAVn(argvgv),newSVpv(argv[0],0)); |
79072805 LW |
2105 | } |
2106 | } | |
85e6fe83 | 2107 | if (envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 | 2108 | HV *hv; |
a5f75d66 | 2109 | GvMULTI_on(envgv); |
79072805 | 2110 | hv = GvHVn(envgv); |
463ee0b2 | 2111 | hv_clear(hv); |
a0d0e21e | 2112 | #ifndef VMS /* VMS doesn't have environ array */ |
4633a7c4 LW |
2113 | /* Note that if the supplied env parameter is actually a copy |
2114 | of the global environ then it may now point to free'd memory | |
2115 | if the environment has been modified since. To avoid this | |
2116 | problem we treat env==NULL as meaning 'use the default' | |
2117 | */ | |
2118 | if (!env) | |
2119 | env = environ; | |
8990e307 | 2120 | if (env != environ) { |
79072805 | 2121 | environ[0] = Nullch; |
8990e307 LW |
2122 | hv_magic(hv, envgv, 'E'); |
2123 | } | |
79072805 | 2124 | for (; *env; env++) { |
93a17b20 | 2125 | if (!(s = strchr(*env,'='))) |
79072805 LW |
2126 | continue; |
2127 | *s++ = '\0'; | |
2128 | sv = newSVpv(s--,0); | |
85e6fe83 | 2129 | sv_magic(sv, sv, 'e', *env, s - *env); |
79072805 LW |
2130 | (void)hv_store(hv, *env, s - *env, sv, 0); |
2131 | *s = '='; | |
fe14fcc3 | 2132 | } |
4550b24a | 2133 | #endif |
2134 | #ifdef DYNAMIC_ENV_FETCH | |
2135 | HvNAME(hv) = savepv(ENV_HV_NAME); | |
2136 | #endif | |
f511e57f | 2137 | hv_magic(hv, envgv, 'E'); |
79072805 | 2138 | } |
bbce6d69 | 2139 | TAINT_NOT; |
85e6fe83 | 2140 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
79072805 | 2141 | sv_setiv(GvSV(tmpgv),(I32)getpid()); |
33b78306 | 2142 | } |
34de22dd | 2143 | |
79072805 LW |
2144 | static void |
2145 | init_perllib() | |
34de22dd | 2146 | { |
85e6fe83 LW |
2147 | char *s; |
2148 | if (!tainting) { | |
552a7a9b | 2149 | #ifndef VMS |
85e6fe83 LW |
2150 | s = getenv("PERL5LIB"); |
2151 | if (s) | |
2152 | incpush(s); | |
2153 | else | |
2154 | incpush(getenv("PERLLIB")); | |
552a7a9b | 2155 | #else /* VMS */ |
2156 | /* Treat PERL5?LIB as a possible search list logical name -- the | |
2157 | * "natural" VMS idiom for a Unix path string. We allow each | |
2158 | * element to be a set of |-separated directories for compatibility. | |
2159 | */ | |
2160 | char buf[256]; | |
2161 | int idx = 0; | |
2162 | if (my_trnlnm("PERL5LIB",buf,0)) | |
2163 | do { incpush(buf); } while (my_trnlnm("PERL5LIB",buf,++idx)); | |
2164 | else | |
2165 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf); | |
2166 | #endif /* VMS */ | |
85e6fe83 | 2167 | } |
34de22dd | 2168 | |
df5cef82 | 2169 | /* Use the ~-expanded versions of APPLIB (undocumented), |
2170 | ARCHLIB PRIVLIB SITEARCH SITELIB and OLDARCHLIB | |
2171 | */ | |
4633a7c4 LW |
2172 | #ifdef APPLLIB_EXP |
2173 | incpush(APPLLIB_EXP); | |
16d20bd9 | 2174 | #endif |
4633a7c4 | 2175 | |
fed7345c AD |
2176 | #ifdef ARCHLIB_EXP |
2177 | incpush(ARCHLIB_EXP); | |
a0d0e21e | 2178 | #endif |
fed7345c AD |
2179 | #ifndef PRIVLIB_EXP |
2180 | #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" | |
34de22dd | 2181 | #endif |
fed7345c | 2182 | incpush(PRIVLIB_EXP); |
4633a7c4 LW |
2183 | |
2184 | #ifdef SITEARCH_EXP | |
2185 | incpush(SITEARCH_EXP); | |
2186 | #endif | |
2187 | #ifdef SITELIB_EXP | |
2188 | incpush(SITELIB_EXP); | |
2189 | #endif | |
2190 | #ifdef OLDARCHLIB_EXP /* 5.00[01] compatibility */ | |
2191 | incpush(OLDARCHLIB_EXP); | |
2192 | #endif | |
a0d0e21e | 2193 | |
4633a7c4 LW |
2194 | if (!tainting) |
2195 | incpush("."); | |
34de22dd | 2196 | } |
93a17b20 LW |
2197 | |
2198 | void | |
2199 | calllist(list) | |
2200 | AV* list; | |
2201 | { | |
a5f75d66 | 2202 | Sigjmp_buf oldtop; |
a0d0e21e LW |
2203 | STRLEN len; |
2204 | line_t oldline = curcop->cop_line; | |
93a17b20 | 2205 | |
a5f75d66 | 2206 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
93a17b20 | 2207 | |
8990e307 LW |
2208 | while (AvFILL(list) >= 0) { |
2209 | CV *cv = (CV*)av_shift(list); | |
93a17b20 | 2210 | |
8990e307 | 2211 | SAVEFREESV(cv); |
a0d0e21e | 2212 | |
a5f75d66 | 2213 | switch (Sigsetjmp(top_env,1)) { |
748a9306 | 2214 | case 0: { |
4633a7c4 | 2215 | SV* atsv = GvSV(errgv); |
748a9306 LW |
2216 | PUSHMARK(stack_sp); |
2217 | perl_call_sv((SV*)cv, G_EVAL|G_DISCARD); | |
2218 | (void)SvPV(atsv, len); | |
2219 | if (len) { | |
a5f75d66 | 2220 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
748a9306 LW |
2221 | curcop = &compiling; |
2222 | curcop->cop_line = oldline; | |
2223 | if (list == beginav) | |
2224 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); | |
2225 | else | |
2226 | sv_catpv(atsv, "END failed--cleanup aborted"); | |
2227 | croak("%s", SvPVX(atsv)); | |
2228 | } | |
a0d0e21e | 2229 | } |
85e6fe83 LW |
2230 | break; |
2231 | case 1: | |
748a9306 | 2232 | #ifdef VMS |
85e6fe83 | 2233 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 LW |
2234 | #else |
2235 | statusvalue = 1; | |
2236 | #endif | |
85e6fe83 LW |
2237 | /* FALL THROUGH */ |
2238 | case 2: | |
2239 | /* my_exit() was called */ | |
2240 | curstash = defstash; | |
2241 | if (endav) | |
2242 | calllist(endav); | |
a0d0e21e | 2243 | FREETMPS; |
a5f75d66 | 2244 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
2245 | curcop = &compiling; |
2246 | curcop->cop_line = oldline; | |
85e6fe83 LW |
2247 | if (statusvalue) { |
2248 | if (list == beginav) | |
a0d0e21e | 2249 | croak("BEGIN failed--compilation aborted"); |
85e6fe83 | 2250 | else |
a0d0e21e | 2251 | croak("END failed--cleanup aborted"); |
85e6fe83 | 2252 | } |
85e6fe83 LW |
2253 | my_exit(statusvalue); |
2254 | /* NOTREACHED */ | |
2255 | return; | |
2256 | case 3: | |
2257 | if (!restartop) { | |
760ac839 | 2258 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e | 2259 | FREETMPS; |
85e6fe83 LW |
2260 | break; |
2261 | } | |
a5f75d66 | 2262 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
2263 | curcop = &compiling; |
2264 | curcop->cop_line = oldline; | |
a5f75d66 | 2265 | Siglongjmp(top_env, 3); |
8990e307 | 2266 | } |
93a17b20 LW |
2267 | } |
2268 | ||
a5f75d66 | 2269 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
93a17b20 LW |
2270 | } |
2271 |