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 LW |
37 | static void find_beginning _((void)); |
38 | static void incpush _((char *)); | |
748a9306 | 39 | static void init_ids _((void)); |
a0d0e21e LW |
40 | static void init_debugger _((void)); |
41 | static void init_lexer _((void)); | |
42 | static void init_main_stash _((void)); | |
43 | static void init_perllib _((void)); | |
44 | static void init_postdump_symbols _((int, char **, char **)); | |
45 | static void init_predump_symbols _((void)); | |
46 | static void init_stacks _((void)); | |
6e72f9df | 47 | static void nuke_stacks _((void)); |
a0d0e21e | 48 | static void open_script _((char *, bool, SV *)); |
ab821d7f | 49 | static void usage _((char *)); |
96436eeb | 50 | static void validate_suid _((char *, char*)); |
51 | ||
52 | static int fdscript = -1; | |
79072805 | 53 | |
93a17b20 | 54 | PerlInterpreter * |
79072805 LW |
55 | perl_alloc() |
56 | { | |
93a17b20 | 57 | PerlInterpreter *sv_interp; |
79072805 | 58 | |
8990e307 | 59 | curinterp = 0; |
93a17b20 | 60 | New(53, sv_interp, 1, PerlInterpreter); |
79072805 LW |
61 | return sv_interp; |
62 | } | |
63 | ||
64 | void | |
65 | perl_construct( sv_interp ) | |
93a17b20 | 66 | register PerlInterpreter *sv_interp; |
79072805 LW |
67 | { |
68 | if (!(curinterp = sv_interp)) | |
69 | return; | |
70 | ||
8990e307 | 71 | #ifdef MULTIPLICITY |
93a17b20 | 72 | Zero(sv_interp, 1, PerlInterpreter); |
8990e307 | 73 | #endif |
79072805 LW |
74 | |
75 | /* Init the real globals? */ | |
76 | if (!linestr) { | |
77 | linestr = NEWSV(65,80); | |
ed6116ce | 78 | sv_upgrade(linestr,SVt_PVIV); |
79072805 | 79 | |
6e72f9df | 80 | if (!SvREADONLY(&sv_undef)) { |
81 | SvREADONLY_on(&sv_undef); | |
79072805 | 82 | |
6e72f9df | 83 | sv_setpv(&sv_no,No); |
84 | SvNV(&sv_no); | |
85 | SvREADONLY_on(&sv_no); | |
79072805 | 86 | |
6e72f9df | 87 | sv_setpv(&sv_yes,Yes); |
88 | SvNV(&sv_yes); | |
89 | SvREADONLY_on(&sv_yes); | |
90 | } | |
79072805 | 91 | |
c07a80fd | 92 | nrs = newSVpv("\n", 1); |
93 | rs = SvREFCNT_inc(nrs); | |
94 | ||
79072805 LW |
95 | #ifdef MSDOS |
96 | /* | |
97 | * There is no way we can refer to them from Perl so close them to save | |
98 | * space. The other alternative would be to provide STDAUX and STDPRN | |
99 | * filehandles. | |
100 | */ | |
101 | (void)fclose(stdaux); | |
102 | (void)fclose(stdprn); | |
103 | #endif | |
104 | } | |
105 | ||
8990e307 | 106 | #ifdef MULTIPLICITY |
79072805 | 107 | chopset = " \n-"; |
463ee0b2 | 108 | copline = NOLINE; |
79072805 | 109 | curcop = &compiling; |
1a30305b | 110 | dbargs = 0; |
79072805 LW |
111 | dlmax = 128; |
112 | laststatval = -1; | |
113 | laststype = OP_STAT; | |
114 | maxscream = -1; | |
115 | maxsysfd = MAXSYSFD; | |
79072805 | 116 | rsfp = Nullfp; |
463ee0b2 | 117 | statname = Nullsv; |
79072805 | 118 | tmps_floor = -1; |
79072805 LW |
119 | #endif |
120 | ||
748a9306 | 121 | init_ids(); |
a5f75d66 AD |
122 | |
123 | #if defined(SUBVERSION) && SUBVERSION > 0 | |
e2666263 | 124 | sprintf(patchlevel, "%7.5f", (double) 5 |
125 | + ((double) PATCHLEVEL / (double) 1000) | |
126 | + ((double) SUBVERSION / (double) 100000)); | |
a5f75d66 | 127 | #else |
e2666263 | 128 | sprintf(patchlevel, "%5.3f", (double) 5 + |
129 | ((double) PATCHLEVEL / (double) 1000)); | |
a5f75d66 | 130 | #endif |
79072805 | 131 | |
ab821d7f | 132 | #if defined(LOCAL_PATCH_COUNT) |
6e72f9df | 133 | localpatches = local_patches; /* For possible -v */ |
ab821d7f | 134 | #endif |
135 | ||
760ac839 LW |
136 | PerlIO_init(); /* Hook to IO system */ |
137 | ||
79072805 | 138 | fdpid = newAV(); /* for remembering popen pids by fd */ |
463ee0b2 | 139 | pidstatus = newHV();/* for remembering status of dead pids */ |
8990e307 LW |
140 | |
141 | init_stacks(); | |
142 | ENTER; | |
79072805 LW |
143 | } |
144 | ||
145 | void | |
748a9306 | 146 | perl_destruct(sv_interp) |
93a17b20 | 147 | register PerlInterpreter *sv_interp; |
79072805 | 148 | { |
748a9306 | 149 | int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
8990e307 | 150 | I32 last_sv_count; |
a0d0e21e | 151 | HV *hv; |
8990e307 | 152 | |
79072805 LW |
153 | if (!(curinterp = sv_interp)) |
154 | return; | |
748a9306 LW |
155 | |
156 | destruct_level = perl_destruct_level; | |
4633a7c4 LW |
157 | #ifdef DEBUGGING |
158 | { | |
159 | char *s; | |
160 | if (s = getenv("PERL_DESTRUCT_LEVEL")) | |
161 | destruct_level = atoi(s); | |
162 | } | |
163 | #endif | |
164 | ||
8990e307 | 165 | LEAVE; |
a0d0e21e LW |
166 | FREETMPS; |
167 | ||
6e72f9df | 168 | /* We must account for everything. First the syntax tree. */ |
169 | if (main_root) { | |
170 | curpad = AvARRAY(comppad); | |
171 | op_free(main_root); | |
172 | main_root = 0; | |
a0d0e21e LW |
173 | } |
174 | if (sv_objcount) { | |
175 | /* | |
176 | * Try to destruct global references. We do this first so that the | |
177 | * destructors and destructees still exist. Some sv's might remain. | |
178 | * Non-referenced objects are on their own. | |
179 | */ | |
180 | ||
181 | dirty = TRUE; | |
182 | sv_clean_objs(); | |
8990e307 LW |
183 | } |
184 | ||
a0d0e21e | 185 | if (destruct_level == 0){ |
8990e307 | 186 | |
a0d0e21e LW |
187 | DEBUG_P(debprofdump()); |
188 | ||
189 | /* The exit() function will do everything that needs doing. */ | |
190 | return; | |
191 | } | |
5dd60ef7 | 192 | |
193 | /* unhook hooks which may now point to, or use, broken code */ | |
194 | if (warnhook && SvREFCNT(warnhook)) | |
195 | SvREFCNT_dec(warnhook); | |
196 | if (diehook && SvREFCNT(diehook)) | |
197 | SvREFCNT_dec(diehook); | |
198 | if (parsehook && SvREFCNT(parsehook)) | |
199 | SvREFCNT_dec(parsehook); | |
a0d0e21e LW |
200 | |
201 | /* Prepare to destruct main symbol table. */ | |
202 | hv = defstash; | |
85e6fe83 | 203 | defstash = 0; |
a0d0e21e LW |
204 | SvREFCNT_dec(hv); |
205 | ||
206 | FREETMPS; | |
207 | if (destruct_level >= 2) { | |
208 | if (scopestack_ix != 0) | |
209 | warn("Unbalanced scopes: %d more ENTERs than LEAVEs\n", scopestack_ix); | |
210 | if (savestack_ix != 0) | |
211 | warn("Unbalanced saves: %d more saves than restores\n", savestack_ix); | |
212 | if (tmps_floor != -1) | |
213 | warn("Unbalanced tmps: %d more allocs than frees\n", tmps_floor + 1); | |
214 | if (cxstack_ix != -1) | |
215 | warn("Unbalanced context: %d more PUSHes than POPs\n", cxstack_ix + 1); | |
216 | } | |
8990e307 LW |
217 | |
218 | /* Now absolutely destruct everything, somehow or other, loops or no. */ | |
8990e307 | 219 | last_sv_count = 0; |
6e72f9df | 220 | SvFLAGS(strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
8990e307 LW |
221 | while (sv_count != 0 && sv_count != last_sv_count) { |
222 | last_sv_count = sv_count; | |
223 | sv_clean_all(); | |
224 | } | |
6e72f9df | 225 | SvFLAGS(strtab) &= ~SVTYPEMASK; |
226 | SvFLAGS(strtab) |= SVt_PVHV; | |
227 | ||
228 | /* Destruct the global string table. */ | |
229 | { | |
230 | /* Yell and reset the HeVAL() slots that are still holding refcounts, | |
231 | * so that sv_free() won't fail on them. | |
232 | */ | |
233 | I32 riter; | |
234 | I32 max; | |
235 | HE *hent; | |
236 | HE **array; | |
237 | ||
238 | riter = 0; | |
239 | max = HvMAX(strtab); | |
240 | array = HvARRAY(strtab); | |
241 | hent = array[0]; | |
242 | for (;;) { | |
243 | if (hent) { | |
244 | warn("Unbalanced string table refcount: (%d) for \"%s\"", | |
245 | HeVAL(hent) - Nullsv, HeKEY(hent)); | |
246 | HeVAL(hent) = Nullsv; | |
247 | hent = HeNEXT(hent); | |
248 | } | |
249 | if (!hent) { | |
250 | if (++riter > max) | |
251 | break; | |
252 | hent = array[riter]; | |
253 | } | |
254 | } | |
255 | } | |
256 | SvREFCNT_dec(strtab); | |
257 | ||
8990e307 LW |
258 | if (sv_count != 0) |
259 | warn("Scalars leaked: %d\n", sv_count); | |
6e72f9df | 260 | |
4633a7c4 | 261 | sv_free_arenas(); |
a0d0e21e | 262 | |
6e72f9df | 263 | linestr = NULL; /* No SVs have survived, need to clean out */ |
264 | if (origfilename) | |
265 | Safefree(origfilename); | |
266 | nuke_stacks(); | |
267 | hints = 0; /* Reset hints. Should hints be per-interpreter ? */ | |
268 | ||
a0d0e21e | 269 | DEBUG_P(debprofdump()); |
79072805 LW |
270 | } |
271 | ||
272 | void | |
273 | perl_free(sv_interp) | |
93a17b20 | 274 | PerlInterpreter *sv_interp; |
79072805 LW |
275 | { |
276 | if (!(curinterp = sv_interp)) | |
277 | return; | |
278 | Safefree(sv_interp); | |
279 | } | |
ecfc5424 | 280 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) |
a0d0e21e LW |
281 | char *getenv _((char *)); /* Usually in <stdlib.h> */ |
282 | #endif | |
79072805 LW |
283 | |
284 | int | |
a0d0e21e | 285 | perl_parse(sv_interp, xsinit, argc, argv, env) |
93a17b20 | 286 | PerlInterpreter *sv_interp; |
a0d0e21e LW |
287 | void (*xsinit)_((void)); |
288 | int argc; | |
289 | char **argv; | |
79072805 | 290 | char **env; |
8d063cd8 | 291 | { |
79072805 | 292 | register SV *sv; |
8d063cd8 | 293 | register char *s; |
1a30305b | 294 | char *scriptname = NULL; |
a0d0e21e | 295 | VOL bool dosearch = FALSE; |
13281fa4 | 296 | char *validarg = ""; |
748a9306 | 297 | AV* comppadlist; |
8d063cd8 | 298 | |
a687059c LW |
299 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
300 | #ifdef IAMSUID | |
301 | #undef IAMSUID | |
463ee0b2 | 302 | croak("suidperl is no longer needed since the kernel can now execute\n\ |
a687059c LW |
303 | setuid perl scripts securely.\n"); |
304 | #endif | |
305 | #endif | |
306 | ||
79072805 LW |
307 | if (!(curinterp = sv_interp)) |
308 | return 255; | |
309 | ||
6e72f9df | 310 | #if defined(NeXT) && defined(__DYNAMIC__) |
311 | _dyld_lookup_and_bind | |
312 | ("__environ", (unsigned long *) &environ_pointer, NULL); | |
313 | #endif /* environ */ | |
314 | ||
ac58e20f LW |
315 | origargv = argv; |
316 | origargc = argc; | |
a0d0e21e | 317 | #ifndef VMS /* VMS doesn't have environ array */ |
fe14fcc3 | 318 | origenviron = environ; |
a0d0e21e | 319 | #endif |
ab821d7f | 320 | e_tmpname = Nullch; |
a0d0e21e LW |
321 | |
322 | if (do_undump) { | |
323 | ||
324 | /* Come here if running an undumped a.out. */ | |
325 | ||
326 | origfilename = savepv(argv[0]); | |
327 | do_undump = FALSE; | |
328 | cxstack_ix = -1; /* start label stack again */ | |
748a9306 | 329 | init_ids(); |
a0d0e21e LW |
330 | init_postdump_symbols(argc,argv,env); |
331 | return 0; | |
332 | } | |
333 | ||
334 | if (main_root) | |
335 | op_free(main_root); | |
336 | main_root = 0; | |
79072805 | 337 | |
a5f75d66 | 338 | switch (Sigsetjmp(top_env,1)) { |
79072805 | 339 | case 1: |
748a9306 | 340 | #ifdef VMS |
79072805 | 341 | statusvalue = 255; |
748a9306 LW |
342 | #else |
343 | statusvalue = 1; | |
344 | #endif | |
79072805 | 345 | case 2: |
8990e307 LW |
346 | curstash = defstash; |
347 | if (endav) | |
348 | calllist(endav); | |
79072805 LW |
349 | return(statusvalue); /* my_exit() was called */ |
350 | case 3: | |
760ac839 | 351 | PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); |
8990e307 | 352 | return 1; |
79072805 LW |
353 | } |
354 | ||
79072805 LW |
355 | sv_setpvn(linestr,"",0); |
356 | sv = newSVpv("",0); /* first used for -I flags */ | |
8990e307 | 357 | SAVEFREESV(sv); |
79072805 | 358 | init_main_stash(); |
33b78306 | 359 | for (argc--,argv++; argc > 0; argc--,argv++) { |
8d063cd8 LW |
360 | if (argv[0][0] != '-' || !argv[0][1]) |
361 | break; | |
13281fa4 LW |
362 | #ifdef DOSUID |
363 | if (*validarg) | |
364 | validarg = " PHOOEY "; | |
365 | else | |
366 | validarg = argv[0]; | |
367 | #endif | |
368 | s = argv[0]+1; | |
8d063cd8 | 369 | reswitch: |
13281fa4 | 370 | switch (*s) { |
27e2fb84 | 371 | case '0': |
2304df62 | 372 | case 'F': |
378cc40b | 373 | case 'a': |
33b78306 | 374 | case 'c': |
a687059c | 375 | case 'd': |
8d063cd8 | 376 | case 'D': |
4633a7c4 | 377 | case 'h': |
33b78306 | 378 | case 'i': |
fe14fcc3 | 379 | case 'l': |
1a30305b | 380 | case 'M': |
381 | case 'm': | |
33b78306 LW |
382 | case 'n': |
383 | case 'p': | |
79072805 | 384 | case 's': |
463ee0b2 | 385 | case 'T': |
33b78306 LW |
386 | case 'u': |
387 | case 'U': | |
388 | case 'v': | |
389 | case 'w': | |
390 | if (s = moreswitches(s)) | |
391 | goto reswitch; | |
8d063cd8 | 392 | break; |
33b78306 | 393 | |
8d063cd8 | 394 | case 'e': |
a687059c | 395 | if (euid != uid || egid != gid) |
463ee0b2 | 396 | croak("No -e allowed in setuid scripts"); |
8d063cd8 | 397 | if (!e_fp) { |
a0d0e21e | 398 | e_tmpname = savepv(TMPPATH); |
a687059c | 399 | (void)mktemp(e_tmpname); |
83025b21 | 400 | if (!*e_tmpname) |
463ee0b2 | 401 | croak("Can't mktemp()"); |
760ac839 | 402 | e_fp = PerlIO_open(e_tmpname,"w"); |
33b78306 | 403 | if (!e_fp) |
463ee0b2 | 404 | croak("Cannot open temporary file"); |
8d063cd8 | 405 | } |
552a7a9b | 406 | if (*++s) |
407 | PerlIO_puts(e_fp,s); | |
408 | else if (argv[1]) { | |
760ac839 | 409 | PerlIO_puts(e_fp,argv[1]); |
33b78306 LW |
410 | argc--,argv++; |
411 | } | |
552a7a9b | 412 | else |
413 | croak("No code specified for -e"); | |
760ac839 | 414 | (void)PerlIO_putc(e_fp,'\n'); |
8d063cd8 LW |
415 | break; |
416 | case 'I': | |
463ee0b2 | 417 | taint_not("-I"); |
79072805 LW |
418 | sv_catpv(sv,"-"); |
419 | sv_catpv(sv,s); | |
420 | sv_catpv(sv," "); | |
a687059c | 421 | if (*++s) { |
a0d0e21e | 422 | av_push(GvAVn(incgv),newSVpv(s,0)); |
378cc40b | 423 | } |
33b78306 | 424 | else if (argv[1]) { |
a0d0e21e | 425 | av_push(GvAVn(incgv),newSVpv(argv[1],0)); |
79072805 | 426 | sv_catpv(sv,argv[1]); |
8d063cd8 | 427 | argc--,argv++; |
79072805 | 428 | sv_catpv(sv," "); |
8d063cd8 LW |
429 | } |
430 | break; | |
8d063cd8 | 431 | case 'P': |
463ee0b2 | 432 | taint_not("-P"); |
8d063cd8 | 433 | preprocess = TRUE; |
13281fa4 | 434 | s++; |
8d063cd8 | 435 | goto reswitch; |
378cc40b | 436 | case 'S': |
463ee0b2 | 437 | taint_not("-S"); |
378cc40b | 438 | dosearch = TRUE; |
13281fa4 | 439 | s++; |
378cc40b | 440 | goto reswitch; |
1a30305b | 441 | case 'V': |
442 | if (!preambleav) | |
443 | preambleav = newAV(); | |
444 | av_push(preambleav, newSVpv("use Config qw(myconfig config_vars)",0)); | |
445 | if (*++s != ':') { | |
6e72f9df | 446 | Sv = newSVpv("print myconfig();",0); |
447 | #ifdef VMS | |
448 | sv_catpv(Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\","); | |
449 | #else | |
450 | sv_catpv(Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\","); | |
451 | #endif | |
452 | #if defined(DEBUGGING) || defined(NOEMBED) || defined(MULTIPLICITY) | |
453 | strcpy(buf,"\" Compile-time options:"); | |
454 | # ifdef DEBUGGING | |
455 | strcat(buf," DEBUGGING"); | |
456 | # endif | |
457 | # ifdef NOEMBED | |
458 | strcat(buf," NOEMBED"); | |
459 | # endif | |
460 | # ifdef MULTIPLICITY | |
461 | strcat(buf," MULTIPLICITY"); | |
462 | # endif | |
463 | strcat(buf,"\\n\","); | |
464 | sv_catpv(Sv,buf); | |
465 | #endif | |
466 | #if defined(LOCAL_PATCH_COUNT) | |
467 | if (LOCAL_PATCH_COUNT > 0) | |
468 | { int i; | |
469 | sv_catpv(Sv,"print \" Locally applied patches:\\n\","); | |
470 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { | |
471 | if (localpatches[i]) { | |
472 | sprintf(buf,"\" \\t%s\\n\",",localpatches[i]); | |
473 | sv_catpv(Sv,buf); | |
474 | } | |
475 | } | |
476 | } | |
477 | #endif | |
478 | sprintf(buf,"\" Built under %s\\n\",",OSNAME); | |
479 | sv_catpv(Sv,buf); | |
480 | #ifdef __DATE__ | |
481 | # ifdef __TIME__ | |
482 | sprintf(buf,"\" Compiled at %s %s\\n\"",__DATE__,__TIME__); | |
483 | # else | |
484 | sprintf(buf,"\" Compiled on %s\\n\"",__DATE__); | |
485 | # endif | |
486 | sv_catpv(Sv,buf); | |
487 | #endif | |
488 | sv_catpv(Sv,"; $\"=\"\\n \"; print \" \\@INC:\\n @INC\\n\""); | |
1a30305b | 489 | } |
490 | else { | |
491 | Sv = newSVpv("config_vars(qw(",0); | |
492 | sv_catpv(Sv, ++s); | |
493 | sv_catpv(Sv, "))"); | |
494 | s += strlen(s); | |
495 | } | |
496 | av_push(preambleav, Sv); | |
c07a80fd | 497 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
1a30305b | 498 | goto reswitch; |
33b78306 LW |
499 | case 'x': |
500 | doextract = TRUE; | |
13281fa4 | 501 | s++; |
33b78306 | 502 | if (*s) |
a0d0e21e | 503 | cddir = savepv(s); |
33b78306 | 504 | break; |
8d063cd8 LW |
505 | case '-': |
506 | argc--,argv++; | |
507 | goto switch_end; | |
508 | case 0: | |
509 | break; | |
510 | default: | |
463ee0b2 | 511 | croak("Unrecognized switch: -%s",s); |
8d063cd8 LW |
512 | } |
513 | } | |
514 | switch_end: | |
1a30305b | 515 | if (!scriptname) |
516 | scriptname = argv[0]; | |
8d063cd8 | 517 | if (e_fp) { |
760ac839 | 518 | if (PerlIO_flush(e_fp) || PerlIO_error(e_fp) || PerlIO_close(e_fp)) |
2304df62 | 519 | croak("Can't write to temp file for -e: %s", Strerror(errno)); |
ab821d7f | 520 | e_fp = Nullfp; |
8d063cd8 | 521 | argc++,argv--; |
45d8adaa | 522 | scriptname = e_tmpname; |
8d063cd8 | 523 | } |
79072805 LW |
524 | else if (scriptname == Nullch) { |
525 | #ifdef MSDOS | |
760ac839 | 526 | if ( isatty(PerlIO_fileno(PerlIO_stdin())) ) |
79072805 | 527 | moreswitches("v"); |
fe14fcc3 | 528 | #endif |
79072805 LW |
529 | scriptname = "-"; |
530 | } | |
fe14fcc3 | 531 | |
79072805 | 532 | init_perllib(); |
8d063cd8 | 533 | |
79072805 | 534 | open_script(scriptname,dosearch,sv); |
8d063cd8 | 535 | |
96436eeb | 536 | validate_suid(validarg, scriptname); |
378cc40b | 537 | |
79072805 LW |
538 | if (doextract) |
539 | find_beginning(); | |
540 | ||
748a9306 LW |
541 | compcv = (CV*)NEWSV(1104,0); |
542 | sv_upgrade((SV *)compcv, SVt_PVCV); | |
543 | ||
6e72f9df | 544 | comppad = newAV(); |
79072805 LW |
545 | av_push(comppad, Nullsv); |
546 | curpad = AvARRAY(comppad); | |
6e72f9df | 547 | comppad_name = newAV(); |
8990e307 LW |
548 | comppad_name_fill = 0; |
549 | min_intro_pending = 0; | |
79072805 LW |
550 | padix = 0; |
551 | ||
748a9306 LW |
552 | comppadlist = newAV(); |
553 | AvREAL_off(comppadlist); | |
8e07c86e AD |
554 | av_store(comppadlist, 0, (SV*)comppad_name); |
555 | av_store(comppadlist, 1, (SV*)comppad); | |
748a9306 LW |
556 | CvPADLIST(compcv) = comppadlist; |
557 | ||
6e72f9df | 558 | boot_core_UNIVERSAL(); |
a0d0e21e LW |
559 | if (xsinit) |
560 | (*xsinit)(); /* in case linked C routines want magical variables */ | |
748a9306 LW |
561 | #ifdef VMS |
562 | init_os_extras(); | |
563 | #endif | |
93a17b20 | 564 | |
93a17b20 | 565 | init_predump_symbols(); |
8990e307 LW |
566 | if (!do_undump) |
567 | init_postdump_symbols(argc,argv,env); | |
93a17b20 | 568 | |
79072805 LW |
569 | init_lexer(); |
570 | ||
571 | /* now parse the script */ | |
572 | ||
573 | error_count = 0; | |
574 | if (yyparse() || error_count) { | |
575 | if (minus_c) | |
463ee0b2 | 576 | croak("%s had compilation errors.\n", origfilename); |
79072805 | 577 | else { |
463ee0b2 | 578 | croak("Execution of %s aborted due to compilation errors.\n", |
79072805 | 579 | origfilename); |
378cc40b | 580 | } |
79072805 LW |
581 | } |
582 | curcop->cop_line = 0; | |
583 | curstash = defstash; | |
584 | preprocess = FALSE; | |
ab821d7f | 585 | if (e_tmpname) { |
79072805 | 586 | (void)UNLINK(e_tmpname); |
ab821d7f | 587 | Safefree(e_tmpname); |
588 | e_tmpname = Nullch; | |
378cc40b | 589 | } |
a687059c | 590 | |
93a17b20 | 591 | /* now that script is parsed, we can modify record separator */ |
c07a80fd | 592 | SvREFCNT_dec(rs); |
593 | rs = SvREFCNT_inc(nrs); | |
594 | sv_setsv(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), rs); | |
45d8adaa | 595 | |
79072805 LW |
596 | if (do_undump) |
597 | my_unexec(); | |
598 | ||
8990e307 LW |
599 | if (dowarn) |
600 | gv_check(defstash); | |
601 | ||
a0d0e21e LW |
602 | LEAVE; |
603 | FREETMPS; | |
c07a80fd | 604 | |
605 | #ifdef DEBUGGING_MSTATS | |
606 | if ((s=getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) | |
607 | dump_mstats("after compilation:"); | |
608 | #endif | |
609 | ||
a0d0e21e LW |
610 | ENTER; |
611 | restartop = 0; | |
79072805 LW |
612 | return 0; |
613 | } | |
614 | ||
615 | int | |
616 | perl_run(sv_interp) | |
93a17b20 | 617 | PerlInterpreter *sv_interp; |
79072805 LW |
618 | { |
619 | if (!(curinterp = sv_interp)) | |
620 | return 255; | |
a5f75d66 | 621 | switch (Sigsetjmp(top_env,1)) { |
79072805 LW |
622 | case 1: |
623 | cxstack_ix = -1; /* start context stack again */ | |
624 | break; | |
625 | case 2: | |
626 | curstash = defstash; | |
93a17b20 LW |
627 | if (endav) |
628 | calllist(endav); | |
a0d0e21e | 629 | FREETMPS; |
c07a80fd | 630 | #ifdef DEBUGGING_MSTATS |
631 | if (getenv("PERL_DEBUG_MSTATS")) | |
632 | dump_mstats("after execution: "); | |
633 | #endif | |
93a17b20 | 634 | return(statusvalue); /* my_exit() was called */ |
79072805 LW |
635 | case 3: |
636 | if (!restartop) { | |
760ac839 | 637 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e | 638 | FREETMPS; |
8990e307 | 639 | return 1; |
83025b21 | 640 | } |
6e72f9df | 641 | if (curstack != mainstack) { |
79072805 | 642 | dSP; |
6e72f9df | 643 | SWITCHSTACK(curstack, mainstack); |
79072805 LW |
644 | } |
645 | break; | |
8d063cd8 | 646 | } |
79072805 | 647 | |
760ac839 | 648 | DEBUG_r(PerlIO_printf(PerlIO_stderr(), "%s $` $& $' support.\n", |
6e72f9df | 649 | sawampersand ? "Enabling" : "Omitting")); |
650 | ||
79072805 LW |
651 | if (!restartop) { |
652 | DEBUG_x(dump_all()); | |
760ac839 | 653 | DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); |
79072805 LW |
654 | |
655 | if (minus_c) { | |
760ac839 | 656 | PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", origfilename); |
79072805 LW |
657 | my_exit(0); |
658 | } | |
a0d0e21e LW |
659 | if (perldb && DBsingle) |
660 | sv_setiv(DBsingle, 1); | |
45d8adaa | 661 | } |
79072805 LW |
662 | |
663 | /* do it */ | |
664 | ||
665 | if (restartop) { | |
666 | op = restartop; | |
667 | restartop = 0; | |
ab821d7f | 668 | runops(); |
79072805 LW |
669 | } |
670 | else if (main_start) { | |
671 | op = main_start; | |
ab821d7f | 672 | runops(); |
79072805 | 673 | } |
79072805 LW |
674 | |
675 | my_exit(0); | |
a0d0e21e | 676 | return 0; |
79072805 LW |
677 | } |
678 | ||
679 | void | |
680 | my_exit(status) | |
748a9306 | 681 | U32 status; |
79072805 | 682 | { |
a0d0e21e LW |
683 | register CONTEXT *cx; |
684 | I32 gimme; | |
685 | SV **newsp; | |
686 | ||
748a9306 | 687 | statusvalue = FIXSTATUS(status); |
a0d0e21e LW |
688 | if (cxstack_ix >= 0) { |
689 | if (cxstack_ix > 0) | |
690 | dounwind(0); | |
691 | POPBLOCK(cx,curpm); | |
692 | LEAVE; | |
693 | } | |
a5f75d66 | 694 | Siglongjmp(top_env, 2); |
79072805 LW |
695 | } |
696 | ||
a0d0e21e LW |
697 | SV* |
698 | perl_get_sv(name, create) | |
699 | char* name; | |
700 | I32 create; | |
701 | { | |
702 | GV* gv = gv_fetchpv(name, create, SVt_PV); | |
703 | if (gv) | |
704 | return GvSV(gv); | |
705 | return Nullsv; | |
706 | } | |
707 | ||
708 | AV* | |
709 | perl_get_av(name, create) | |
710 | char* name; | |
711 | I32 create; | |
712 | { | |
713 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); | |
714 | if (create) | |
715 | return GvAVn(gv); | |
716 | if (gv) | |
717 | return GvAV(gv); | |
718 | return Nullav; | |
719 | } | |
720 | ||
721 | HV* | |
722 | perl_get_hv(name, create) | |
723 | char* name; | |
724 | I32 create; | |
725 | { | |
726 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); | |
727 | if (create) | |
728 | return GvHVn(gv); | |
729 | if (gv) | |
730 | return GvHV(gv); | |
731 | return Nullhv; | |
732 | } | |
733 | ||
734 | CV* | |
735 | perl_get_cv(name, create) | |
736 | char* name; | |
737 | I32 create; | |
738 | { | |
739 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); | |
740 | if (create && !GvCV(gv)) | |
741 | return newSUB(start_subparse(), | |
742 | newSVOP(OP_CONST, 0, newSVpv(name,0)), | |
4633a7c4 | 743 | Nullop, |
a0d0e21e LW |
744 | Nullop); |
745 | if (gv) | |
746 | return GvCV(gv); | |
747 | return Nullcv; | |
748 | } | |
749 | ||
79072805 LW |
750 | /* Be sure to refetch the stack pointer after calling these routines. */ |
751 | ||
a0d0e21e LW |
752 | I32 |
753 | perl_call_argv(subname, flags, argv) | |
8990e307 | 754 | char *subname; |
a0d0e21e LW |
755 | I32 flags; /* See G_* flags in cop.h */ |
756 | register char **argv; /* null terminated arg list */ | |
8990e307 | 757 | { |
a0d0e21e | 758 | dSP; |
8990e307 | 759 | |
a0d0e21e LW |
760 | PUSHMARK(sp); |
761 | if (argv) { | |
8990e307 | 762 | while (*argv) { |
a0d0e21e | 763 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 LW |
764 | argv++; |
765 | } | |
a0d0e21e | 766 | PUTBACK; |
8990e307 | 767 | } |
a0d0e21e | 768 | return perl_call_pv(subname, flags); |
8990e307 LW |
769 | } |
770 | ||
a0d0e21e LW |
771 | I32 |
772 | perl_call_pv(subname, flags) | |
773 | char *subname; /* name of the subroutine */ | |
774 | I32 flags; /* See G_* flags in cop.h */ | |
775 | { | |
776 | return perl_call_sv((SV*)perl_get_cv(subname, TRUE), flags); | |
777 | } | |
778 | ||
779 | I32 | |
780 | perl_call_method(methname, flags) | |
781 | char *methname; /* name of the subroutine */ | |
782 | I32 flags; /* See G_* flags in cop.h */ | |
783 | { | |
784 | dSP; | |
785 | OP myop; | |
786 | if (!op) | |
787 | op = &myop; | |
788 | XPUSHs(sv_2mortal(newSVpv(methname,0))); | |
789 | PUTBACK; | |
790 | pp_method(); | |
791 | return perl_call_sv(*stack_sp--, flags); | |
792 | } | |
793 | ||
794 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
795 | I32 | |
796 | perl_call_sv(sv, flags) | |
797 | SV* sv; | |
798 | I32 flags; /* See G_* flags in cop.h */ | |
799 | { | |
800 | LOGOP myop; /* fake syntax tree node */ | |
801 | SV** sp = stack_sp; | |
802 | I32 oldmark = TOPMARK; | |
803 | I32 retval; | |
a5f75d66 | 804 | Sigjmp_buf oldtop; |
a0d0e21e | 805 | I32 oldscope; |
6e72f9df | 806 | static CV *DBcv; |
a0d0e21e LW |
807 | |
808 | if (flags & G_DISCARD) { | |
809 | ENTER; | |
810 | SAVETMPS; | |
811 | } | |
812 | ||
813 | SAVESPTR(op); | |
814 | op = (OP*)&myop; | |
815 | Zero(op, 1, LOGOP); | |
816 | EXTEND(stack_sp, 1); | |
817 | *++stack_sp = sv; | |
818 | oldscope = scopestack_ix; | |
819 | ||
820 | if (!(flags & G_NOARGS)) | |
821 | myop.op_flags = OPf_STACKED; | |
822 | myop.op_next = Nullop; | |
823 | myop.op_flags |= OPf_KNOW; | |
824 | if (flags & G_ARRAY) | |
825 | myop.op_flags |= OPf_LIST; | |
826 | ||
6e72f9df | 827 | if (perldb && curstash != debstash |
828 | && (DBcv || (DBcv = GvCV(DBsub)))) /* to handle first BEGIN of -d */ | |
829 | op->op_private |= OPpENTERSUB_DB; | |
830 | ||
a0d0e21e | 831 | if (flags & G_EVAL) { |
a5f75d66 | 832 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
a0d0e21e LW |
833 | |
834 | cLOGOP->op_other = op; | |
835 | markstack_ptr--; | |
4633a7c4 LW |
836 | /* we're trying to emulate pp_entertry() here */ |
837 | { | |
838 | register CONTEXT *cx; | |
839 | I32 gimme = GIMME; | |
840 | ||
841 | ENTER; | |
842 | SAVETMPS; | |
843 | ||
844 | push_return(op->op_next); | |
845 | PUSHBLOCK(cx, CXt_EVAL, stack_sp); | |
846 | PUSHEVAL(cx, 0, 0); | |
847 | eval_root = op; /* Only needed so that goto works right. */ | |
848 | ||
849 | in_eval = 1; | |
850 | if (flags & G_KEEPERR) | |
851 | in_eval |= 4; | |
852 | else | |
853 | sv_setpv(GvSV(errgv),""); | |
854 | } | |
a0d0e21e LW |
855 | markstack_ptr++; |
856 | ||
857 | restart: | |
a5f75d66 | 858 | switch (Sigsetjmp(top_env,1)) { |
a0d0e21e LW |
859 | case 0: |
860 | break; | |
861 | case 1: | |
748a9306 | 862 | #ifdef VMS |
a0d0e21e | 863 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 LW |
864 | #else |
865 | statusvalue = 1; | |
866 | #endif | |
a0d0e21e LW |
867 | /* FALL THROUGH */ |
868 | case 2: | |
869 | /* my_exit() was called */ | |
870 | curstash = defstash; | |
871 | FREETMPS; | |
a5f75d66 | 872 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
873 | if (statusvalue) |
874 | croak("Callback called exit"); | |
875 | my_exit(statusvalue); | |
876 | /* NOTREACHED */ | |
877 | case 3: | |
878 | if (restartop) { | |
879 | op = restartop; | |
880 | restartop = 0; | |
881 | goto restart; | |
882 | } | |
883 | stack_sp = stack_base + oldmark; | |
884 | if (flags & G_ARRAY) | |
885 | retval = 0; | |
886 | else { | |
887 | retval = 1; | |
888 | *++stack_sp = &sv_undef; | |
889 | } | |
890 | goto cleanup; | |
891 | } | |
892 | } | |
893 | ||
894 | if (op == (OP*)&myop) | |
895 | op = pp_entersub(); | |
896 | if (op) | |
ab821d7f | 897 | runops(); |
a0d0e21e | 898 | retval = stack_sp - (stack_base + oldmark); |
4633a7c4 LW |
899 | if ((flags & G_EVAL) && !(flags & G_KEEPERR)) |
900 | sv_setpv(GvSV(errgv),""); | |
a0d0e21e LW |
901 | |
902 | cleanup: | |
903 | if (flags & G_EVAL) { | |
904 | if (scopestack_ix > oldscope) { | |
a0a2876f LW |
905 | SV **newsp; |
906 | PMOP *newpm; | |
907 | I32 gimme; | |
908 | register CONTEXT *cx; | |
909 | I32 optype; | |
910 | ||
911 | POPBLOCK(cx,newpm); | |
912 | POPEVAL(cx); | |
913 | pop_return(); | |
914 | curpm = newpm; | |
915 | LEAVE; | |
a0d0e21e | 916 | } |
a5f75d66 | 917 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
918 | } |
919 | if (flags & G_DISCARD) { | |
920 | stack_sp = stack_base + oldmark; | |
921 | retval = 0; | |
922 | FREETMPS; | |
923 | LEAVE; | |
924 | } | |
925 | return retval; | |
926 | } | |
927 | ||
6e72f9df | 928 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 | 929 | |
a0d0e21e | 930 | I32 |
4633a7c4 | 931 | perl_eval_sv(sv, flags) |
8990e307 | 932 | SV* sv; |
4633a7c4 | 933 | I32 flags; /* See G_* flags in cop.h */ |
a0d0e21e LW |
934 | { |
935 | UNOP myop; /* fake syntax tree node */ | |
4633a7c4 LW |
936 | SV** sp = stack_sp; |
937 | I32 oldmark = sp - stack_base; | |
938 | I32 retval; | |
a5f75d66 | 939 | Sigjmp_buf oldtop; |
4633a7c4 | 940 | I32 oldscope; |
79072805 | 941 | |
4633a7c4 LW |
942 | if (flags & G_DISCARD) { |
943 | ENTER; | |
944 | SAVETMPS; | |
945 | } | |
946 | ||
79072805 | 947 | SAVESPTR(op); |
79072805 | 948 | op = (OP*)&myop; |
a0d0e21e | 949 | Zero(op, 1, UNOP); |
4633a7c4 LW |
950 | EXTEND(stack_sp, 1); |
951 | *++stack_sp = sv; | |
952 | oldscope = scopestack_ix; | |
79072805 | 953 | |
4633a7c4 LW |
954 | if (!(flags & G_NOARGS)) |
955 | myop.op_flags = OPf_STACKED; | |
79072805 | 956 | myop.op_next = Nullop; |
6e72f9df | 957 | myop.op_type = OP_ENTEREVAL; |
4633a7c4 | 958 | myop.op_flags |= OPf_KNOW; |
6e72f9df | 959 | if (flags & G_KEEPERR) |
960 | myop.op_flags |= OPf_SPECIAL; | |
4633a7c4 | 961 | if (flags & G_ARRAY) |
6e72f9df | 962 | myop.op_flags |= OPf_LIST; |
79072805 | 963 | |
a5f75d66 | 964 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
4633a7c4 LW |
965 | |
966 | restart: | |
a5f75d66 | 967 | switch (Sigsetjmp(top_env,1)) { |
4633a7c4 LW |
968 | case 0: |
969 | break; | |
970 | case 1: | |
971 | #ifdef VMS | |
972 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ | |
973 | #else | |
974 | statusvalue = 1; | |
975 | #endif | |
976 | /* FALL THROUGH */ | |
977 | case 2: | |
978 | /* my_exit() was called */ | |
979 | curstash = defstash; | |
980 | FREETMPS; | |
a5f75d66 | 981 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
4633a7c4 LW |
982 | if (statusvalue) |
983 | croak("Callback called exit"); | |
984 | my_exit(statusvalue); | |
985 | /* NOTREACHED */ | |
986 | case 3: | |
987 | if (restartop) { | |
988 | op = restartop; | |
989 | restartop = 0; | |
990 | goto restart; | |
991 | } | |
992 | stack_sp = stack_base + oldmark; | |
993 | if (flags & G_ARRAY) | |
994 | retval = 0; | |
995 | else { | |
996 | retval = 1; | |
997 | *++stack_sp = &sv_undef; | |
998 | } | |
999 | goto cleanup; | |
1000 | } | |
1001 | ||
1002 | if (op == (OP*)&myop) | |
1003 | op = pp_entereval(); | |
1004 | if (op) | |
ab821d7f | 1005 | runops(); |
4633a7c4 | 1006 | retval = stack_sp - (stack_base + oldmark); |
6e72f9df | 1007 | if (!(flags & G_KEEPERR)) |
4633a7c4 LW |
1008 | sv_setpv(GvSV(errgv),""); |
1009 | ||
1010 | cleanup: | |
a5f75d66 | 1011 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
4633a7c4 LW |
1012 | if (flags & G_DISCARD) { |
1013 | stack_sp = stack_base + oldmark; | |
1014 | retval = 0; | |
1015 | FREETMPS; | |
1016 | LEAVE; | |
1017 | } | |
1018 | return retval; | |
1019 | } | |
1020 | ||
1021 | /* Require a module. */ | |
1022 | ||
1023 | void | |
1024 | perl_require_pv(pv) | |
1025 | char* pv; | |
1026 | { | |
1027 | SV* sv = sv_newmortal(); | |
1028 | sv_setpv(sv, "require '"); | |
1029 | sv_catpv(sv, pv); | |
1030 | sv_catpv(sv, "'"); | |
1031 | perl_eval_sv(sv, G_DISCARD); | |
79072805 LW |
1032 | } |
1033 | ||
79072805 | 1034 | void |
79072805 LW |
1035 | magicname(sym,name,namlen) |
1036 | char *sym; | |
1037 | char *name; | |
1038 | I32 namlen; | |
1039 | { | |
1040 | register GV *gv; | |
1041 | ||
85e6fe83 | 1042 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 LW |
1043 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
1044 | } | |
1045 | ||
748a9306 LW |
1046 | #if defined(DOSISH) |
1047 | # define PERLLIB_SEP ';' | |
79072805 | 1048 | #else |
232e078e AD |
1049 | # if defined(VMS) |
1050 | # define PERLLIB_SEP '|' | |
1051 | # else | |
748a9306 | 1052 | # define PERLLIB_SEP ':' |
232e078e | 1053 | # endif |
79072805 | 1054 | #endif |
760ac839 LW |
1055 | #ifndef PERLLIB_MANGLE |
1056 | # define PERLLIB_MANGLE(s,n) (s) | |
1057 | #endif | |
79072805 LW |
1058 | |
1059 | static void | |
1060 | incpush(p) | |
1061 | char *p; | |
1062 | { | |
1063 | char *s; | |
1064 | ||
1065 | if (!p) | |
1066 | return; | |
1067 | ||
1068 | /* Break at all separators */ | |
1069 | while (*p) { | |
1070 | /* First, skip any consecutive separators */ | |
1071 | while ( *p == PERLLIB_SEP ) { | |
1072 | /* Uncomment the next line for PATH semantics */ | |
a0d0e21e | 1073 | /* av_push(GvAVn(incgv), newSVpv(".", 1)); */ |
79072805 LW |
1074 | p++; |
1075 | } | |
93a17b20 | 1076 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { |
760ac839 LW |
1077 | av_push(GvAVn(incgv), newSVpv(PERLLIB_MANGLE(p, (STRLEN)(s - p)), |
1078 | (STRLEN)(s - p))); | |
79072805 LW |
1079 | p = s + 1; |
1080 | } else { | |
760ac839 | 1081 | av_push(GvAVn(incgv), newSVpv(PERLLIB_MANGLE(p, 0), 0)); |
79072805 LW |
1082 | break; |
1083 | } | |
1084 | } | |
1085 | } | |
1086 | ||
ab821d7f | 1087 | static void |
1a30305b | 1088 | usage(name) /* XXX move this out into a module ? */ |
4633a7c4 LW |
1089 | char *name; |
1090 | { | |
ab821d7f | 1091 | /* This message really ought to be max 23 lines. |
1092 | * Removed -h because the user already knows that opton. Others? */ | |
1093 | printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name); | |
4633a7c4 | 1094 | printf("\n -0[octal] specify record separator (\\0, if no argument)"); |
ab821d7f | 1095 | printf("\n -a autosplit mode with -n or -p (splits $_ into @F)"); |
4633a7c4 | 1096 | printf("\n -c check syntax only (runs BEGIN and END blocks)"); |
1a30305b | 1097 | printf("\n -d[:debugger] run scripts under debugger"); |
4633a7c4 | 1098 | printf("\n -D[number/list] set debugging flags (argument is a bit mask or flags)"); |
ab821d7f | 1099 | printf("\n -e 'command' one line of script. Several -e's allowed. Omit [programfile]."); |
1100 | printf("\n -F/pattern/ split() pattern for autosplit (-a). The //'s are optional."); | |
4633a7c4 | 1101 | printf("\n -i[extension] edit <> files in place (make backup if extension supplied)"); |
ab821d7f | 1102 | printf("\n -Idirectory specify @INC/#include directory (may be used more then once)"); |
4633a7c4 | 1103 | printf("\n -l[octal] enable line ending processing, specifies line teminator"); |
ab821d7f | 1104 | printf("\n -[mM][-]module.. executes `use/no module...' before executing your script."); |
4633a7c4 LW |
1105 | printf("\n -n assume 'while (<>) { ... }' loop arround your script"); |
1106 | printf("\n -p assume loop like -n but print line also like sed"); | |
1107 | printf("\n -P run script through C preprocessor before compilation"); | |
4633a7c4 LW |
1108 | printf("\n -s enable some switch parsing for switches after script name"); |
1109 | printf("\n -S look for the script using PATH environment variable"); | |
1110 | printf("\n -T turn on tainting checks"); | |
1111 | printf("\n -u dump core after parsing script"); | |
1112 | printf("\n -U allow unsafe operations"); | |
1113 | printf("\n -v print version number and patchlevel of perl"); | |
1a30305b | 1114 | printf("\n -V[:variable] print perl configuration information"); |
ab821d7f | 1115 | printf("\n -w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT."); |
4633a7c4 LW |
1116 | printf("\n -x[directory] strip off text before #!perl line and perhaps cd to directory\n"); |
1117 | } | |
1118 | ||
79072805 LW |
1119 | /* This routine handles any switches that can be given during run */ |
1120 | ||
1121 | char * | |
1122 | moreswitches(s) | |
1123 | char *s; | |
1124 | { | |
1125 | I32 numlen; | |
c07a80fd | 1126 | U32 rschar; |
79072805 LW |
1127 | |
1128 | switch (*s) { | |
1129 | case '0': | |
c07a80fd | 1130 | rschar = scan_oct(s, 4, &numlen); |
1131 | SvREFCNT_dec(nrs); | |
1132 | if (rschar & ~((U8)~0)) | |
1133 | nrs = &sv_undef; | |
1134 | else if (!rschar && numlen >= 2) | |
1135 | nrs = newSVpv("", 0); | |
1136 | else { | |
1137 | char ch = rschar; | |
1138 | nrs = newSVpv(&ch, 1); | |
79072805 LW |
1139 | } |
1140 | return s + numlen; | |
2304df62 AD |
1141 | case 'F': |
1142 | minus_F = TRUE; | |
a0d0e21e | 1143 | splitstr = savepv(s + 1); |
2304df62 AD |
1144 | s += strlen(s); |
1145 | return s; | |
79072805 LW |
1146 | case 'a': |
1147 | minus_a = TRUE; | |
1148 | s++; | |
1149 | return s; | |
1150 | case 'c': | |
1151 | minus_c = TRUE; | |
1152 | s++; | |
1153 | return s; | |
1154 | case 'd': | |
463ee0b2 | 1155 | taint_not("-d"); |
4633a7c4 | 1156 | s++; |
c07a80fd | 1157 | if (*s == ':' || *s == '=') { |
4633a7c4 LW |
1158 | sprintf(buf, "use Devel::%s;", ++s); |
1159 | s += strlen(s); | |
1160 | my_setenv("PERL5DB",buf); | |
1161 | } | |
a0d0e21e LW |
1162 | if (!perldb) { |
1163 | perldb = TRUE; | |
1164 | init_debugger(); | |
1165 | } | |
79072805 LW |
1166 | return s; |
1167 | case 'D': | |
1168 | #ifdef DEBUGGING | |
463ee0b2 | 1169 | taint_not("-D"); |
79072805 | 1170 | if (isALPHA(s[1])) { |
8990e307 | 1171 | static char debopts[] = "psltocPmfrxuLHXD"; |
79072805 LW |
1172 | char *d; |
1173 | ||
93a17b20 | 1174 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
79072805 LW |
1175 | debug |= 1 << (d - debopts); |
1176 | } | |
1177 | else { | |
1178 | debug = atoi(s+1); | |
1179 | for (s++; isDIGIT(*s); s++) ; | |
1180 | } | |
8990e307 | 1181 | debug |= 0x80000000; |
79072805 LW |
1182 | #else |
1183 | warn("Recompile perl with -DDEBUGGING to use -D switch\n"); | |
a0d0e21e | 1184 | for (s++; isALNUM(*s); s++) ; |
79072805 LW |
1185 | #endif |
1186 | /*SUPPRESS 530*/ | |
1187 | return s; | |
4633a7c4 LW |
1188 | case 'h': |
1189 | usage(origargv[0]); | |
1190 | exit(0); | |
79072805 LW |
1191 | case 'i': |
1192 | if (inplace) | |
1193 | Safefree(inplace); | |
a0d0e21e | 1194 | inplace = savepv(s+1); |
79072805 LW |
1195 | /*SUPPRESS 530*/ |
1196 | for (s = inplace; *s && !isSPACE(*s); s++) ; | |
1197 | *s = '\0'; | |
1198 | break; | |
1199 | case 'I': | |
463ee0b2 | 1200 | taint_not("-I"); |
79072805 | 1201 | if (*++s) { |
748a9306 LW |
1202 | char *e; |
1203 | for (e = s; *e && !isSPACE(*e); e++) ; | |
1204 | av_push(GvAVn(incgv),newSVpv(s,e-s)); | |
1205 | if (*e) | |
1206 | return e; | |
79072805 LW |
1207 | } |
1208 | else | |
463ee0b2 | 1209 | croak("No space allowed after -I"); |
79072805 LW |
1210 | break; |
1211 | case 'l': | |
1212 | minus_l = TRUE; | |
1213 | s++; | |
a0d0e21e LW |
1214 | if (ors) |
1215 | Safefree(ors); | |
79072805 | 1216 | if (isDIGIT(*s)) { |
a0d0e21e | 1217 | ors = savepv("\n"); |
79072805 LW |
1218 | orslen = 1; |
1219 | *ors = scan_oct(s, 3 + (*s == '0'), &numlen); | |
1220 | s += numlen; | |
1221 | } | |
1222 | else { | |
c07a80fd | 1223 | if (RsPARA(nrs)) { |
6e72f9df | 1224 | ors = "\n\n"; |
c07a80fd | 1225 | orslen = 2; |
1226 | } | |
1227 | else | |
1228 | ors = SvPV(nrs, orslen); | |
6e72f9df | 1229 | ors = savepvn(ors, orslen); |
79072805 LW |
1230 | } |
1231 | return s; | |
1a30305b | 1232 | case 'M': |
1233 | taint_not("-M"); /* XXX ? */ | |
1234 | /* FALL THROUGH */ | |
1235 | case 'm': | |
1236 | taint_not("-m"); /* XXX ? */ | |
1237 | if (*++s) { | |
a5f75d66 AD |
1238 | char *start; |
1239 | char *use = "use "; | |
1240 | /* -M-foo == 'no foo' */ | |
1241 | if (*s == '-') { use = "no "; ++s; } | |
1242 | Sv = newSVpv(use,0); | |
1243 | start = s; | |
1a30305b | 1244 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd | 1245 | while(isALNUM(*s) || *s==':') ++s; |
1246 | if (*s != '=') { | |
1247 | sv_catpv(Sv, start); | |
1248 | if (*(start-1) == 'm') { | |
1249 | if (*s != '\0') | |
1250 | croak("Can't use '%c' after -mname", *s); | |
1251 | sv_catpv( Sv, " ()"); | |
1252 | } | |
1253 | } else { | |
1254 | sv_catpvn(Sv, start, s-start); | |
a5f75d66 | 1255 | sv_catpv(Sv, " split(/,/,q{"); |
c07a80fd | 1256 | sv_catpv(Sv, ++s); |
a5f75d66 | 1257 | sv_catpv(Sv, "})"); |
c07a80fd | 1258 | } |
1a30305b | 1259 | s += strlen(s); |
c07a80fd | 1260 | if (preambleav == NULL) |
1261 | preambleav = newAV(); | |
1262 | av_push(preambleav, Sv); | |
1a30305b | 1263 | } |
1264 | else | |
1265 | croak("No space allowed after -%c", *(s-1)); | |
1266 | return s; | |
79072805 LW |
1267 | case 'n': |
1268 | minus_n = TRUE; | |
1269 | s++; | |
1270 | return s; | |
1271 | case 'p': | |
1272 | minus_p = TRUE; | |
1273 | s++; | |
1274 | return s; | |
1275 | case 's': | |
463ee0b2 | 1276 | taint_not("-s"); |
79072805 LW |
1277 | doswitches = TRUE; |
1278 | s++; | |
1279 | return s; | |
463ee0b2 LW |
1280 | case 'T': |
1281 | tainting = TRUE; | |
1282 | s++; | |
1283 | return s; | |
79072805 LW |
1284 | case 'u': |
1285 | do_undump = TRUE; | |
1286 | s++; | |
1287 | return s; | |
1288 | case 'U': | |
1289 | unsafe = TRUE; | |
1290 | s++; | |
1291 | return s; | |
1292 | case 'v': | |
a5f75d66 AD |
1293 | #if defined(SUBVERSION) && SUBVERSION > 0 |
1294 | printf("\nThis is perl, version 5.%03d_%02d", PATCHLEVEL, SUBVERSION); | |
1295 | #else | |
1296 | printf("\nThis is perl, version %s",patchlevel); | |
1297 | #endif | |
1a30305b | 1298 | |
760ac839 LW |
1299 | printf("\n\nCopyright 1987-1996, Larry Wall\n"); |
1300 | printf("\n\t+ suidperl security patch"); | |
79072805 | 1301 | #ifdef MSDOS |
760ac839 | 1302 | printf("MS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); |
4633a7c4 | 1303 | #endif |
79072805 | 1304 | #ifdef OS2 |
5dd60ef7 | 1305 | printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" |
760ac839 | 1306 | "Version 5 port Copyright (c) 1994-1996, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 | 1307 | #endif |
79072805 | 1308 | #ifdef atarist |
760ac839 | 1309 | printf("atariST series port, ++jrb bammi@cadence.com\n"); |
79072805 | 1310 | #endif |
760ac839 | 1311 | printf("\n\ |
79072805 | 1312 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
760ac839 | 1313 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n"); |
79072805 LW |
1314 | #ifdef MSDOS |
1315 | usage(origargv[0]); | |
1316 | #endif | |
1317 | exit(0); | |
1318 | case 'w': | |
1319 | dowarn = TRUE; | |
1320 | s++; | |
1321 | return s; | |
a0d0e21e | 1322 | case '*': |
79072805 LW |
1323 | case ' ': |
1324 | if (s[1] == '-') /* Additional switches on #! line. */ | |
1325 | return s+2; | |
1326 | break; | |
a0d0e21e | 1327 | case '-': |
79072805 LW |
1328 | case 0: |
1329 | case '\n': | |
1330 | case '\t': | |
1331 | break; | |
a0d0e21e LW |
1332 | case 'P': |
1333 | if (preprocess) | |
1334 | return s+1; | |
1335 | /* FALL THROUGH */ | |
79072805 | 1336 | default: |
a0d0e21e | 1337 | croak("Can't emulate -%.1s on #! line",s); |
79072805 LW |
1338 | } |
1339 | return Nullch; | |
1340 | } | |
1341 | ||
1342 | /* compliments of Tom Christiansen */ | |
1343 | ||
1344 | /* unexec() can be found in the Gnu emacs distribution */ | |
1345 | ||
1346 | void | |
1347 | my_unexec() | |
1348 | { | |
1349 | #ifdef UNEXEC | |
1350 | int status; | |
1351 | extern int etext; | |
1352 | ||
1353 | sprintf (buf, "%s.perldump", origfilename); | |
1354 | sprintf (tokenbuf, "%s/perl", BIN); | |
1355 | ||
1356 | status = unexec(buf, tokenbuf, &etext, sbrk(0), 0); | |
1357 | if (status) | |
760ac839 | 1358 | PerlIO_printf(PerlIO_stderr(), "unexec of %s into %s failed!\n", tokenbuf, buf); |
a0d0e21e | 1359 | exit(status); |
79072805 | 1360 | #else |
a5f75d66 AD |
1361 | # ifdef VMS |
1362 | # include <lib$routines.h> | |
1363 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ | |
1364 | #else | |
79072805 LW |
1365 | ABORT(); /* for use with undump */ |
1366 | #endif | |
a5f75d66 | 1367 | #endif |
79072805 LW |
1368 | } |
1369 | ||
1370 | static void | |
1371 | init_main_stash() | |
1372 | { | |
463ee0b2 | 1373 | GV *gv; |
6e72f9df | 1374 | |
1375 | /* Note that strtab is a rather special HV. Assumptions are made | |
1376 | about not iterating on it, and not adding tie magic to it. | |
1377 | It is properly deallocated in perl_destruct() */ | |
1378 | strtab = newHV(); | |
1379 | HvSHAREKEYS_off(strtab); /* mandatory */ | |
1380 | Newz(506,((XPVHV*)SvANY(strtab))->xhv_array, | |
1381 | sizeof(HE*) * (((XPVHV*)SvANY(strtab))->xhv_max + 1), char); | |
1382 | ||
463ee0b2 | 1383 | curstash = defstash = newHV(); |
79072805 | 1384 | curstname = newSVpv("main",4); |
adbc6bb1 LW |
1385 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
1386 | SvREFCNT_dec(GvHV(gv)); | |
1387 | GvHV(gv) = (HV*)SvREFCNT_inc(defstash); | |
463ee0b2 | 1388 | SvREADONLY_on(gv); |
a0d0e21e | 1389 | HvNAME(defstash) = savepv("main"); |
85e6fe83 | 1390 | incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); |
a5f75d66 | 1391 | GvMULTI_on(incgv); |
a0d0e21e | 1392 | defgv = gv_fetchpv("_",TRUE, SVt_PVAV); |
4633a7c4 | 1393 | errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); |
a5f75d66 | 1394 | GvMULTI_on(errgv); |
552a7a9b | 1395 | sv_setpvn(GvSV(errgv), "", 0); |
8990e307 LW |
1396 | curstash = defstash; |
1397 | compiling.cop_stash = defstash; | |
adbc6bb1 | 1398 | debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); |
4633a7c4 LW |
1399 | /* We must init $/ before switches are processed. */ |
1400 | sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1); | |
79072805 LW |
1401 | } |
1402 | ||
a0d0e21e LW |
1403 | #ifdef CAN_PROTOTYPE |
1404 | static void | |
1405 | open_script(char *scriptname, bool dosearch, SV *sv) | |
1406 | #else | |
79072805 LW |
1407 | static void |
1408 | open_script(scriptname,dosearch,sv) | |
1409 | char *scriptname; | |
1410 | bool dosearch; | |
1411 | SV *sv; | |
a0d0e21e | 1412 | #endif |
79072805 LW |
1413 | { |
1414 | char *xfound = Nullch; | |
1415 | char *xfailed = Nullch; | |
1416 | register char *s; | |
1417 | I32 len; | |
a38d6535 LW |
1418 | int retval; |
1419 | #if defined(DOSISH) && !defined(OS2) && !defined(atarist) | |
1420 | #define SEARCH_EXTS ".bat", ".cmd", NULL | |
1421 | #endif | |
ab821d7f | 1422 | #ifdef VMS |
1423 | # define SEARCH_EXTS ".pl", ".com", NULL | |
1424 | #endif | |
a38d6535 LW |
1425 | /* additional extensions to try in each dir if scriptname not found */ |
1426 | #ifdef SEARCH_EXTS | |
1427 | char *ext[] = { SEARCH_EXTS }; | |
1428 | int extidx = (strchr(scriptname,'.')) ? -1 : 0; /* has ext already */ | |
1429 | #endif | |
79072805 | 1430 | |
c07a80fd | 1431 | #ifdef VMS |
6e72f9df | 1432 | if (dosearch) { |
1433 | int hasdir, idx = 0, deftypes = 1; | |
1434 | ||
1435 | hasdir = (strpbrk(scriptname,":[</") != Nullch) ; | |
1436 | /* The first time through, just add SEARCH_EXTS to whatever we | |
1437 | * already have, so we can check for default file types. */ | |
1438 | while (deftypes || (!hasdir && my_trnlnm("DCL$PATH",tokenbuf,idx++)) ) { | |
1439 | if (deftypes) { deftypes = 0; *tokenbuf = '\0'; } | |
c07a80fd | 1440 | strcat(tokenbuf,scriptname); |
1441 | #else /* !VMS */ | |
93a17b20 | 1442 | if (dosearch && !strchr(scriptname, '/') && (s = getenv("PATH"))) { |
79072805 LW |
1443 | |
1444 | bufend = s + strlen(s); | |
1445 | while (*s) { | |
1446 | #ifndef DOSISH | |
1447 | s = cpytill(tokenbuf,s,bufend,':',&len); | |
1448 | #else | |
1449 | #ifdef atarist | |
1450 | for (len = 0; *s && *s != ',' && *s != ';'; tokenbuf[len++] = *s++); | |
1451 | tokenbuf[len] = '\0'; | |
1452 | #else | |
1453 | for (len = 0; *s && *s != ';'; tokenbuf[len++] = *s++); | |
1454 | tokenbuf[len] = '\0'; | |
1455 | #endif | |
1456 | #endif | |
1457 | if (*s) | |
1458 | s++; | |
1459 | #ifndef DOSISH | |
1460 | if (len && tokenbuf[len-1] != '/') | |
1461 | #else | |
1462 | #ifdef atarist | |
1463 | if (len && ((tokenbuf[len-1] != '\\') && (tokenbuf[len-1] != '/'))) | |
1464 | #else | |
1465 | if (len && tokenbuf[len-1] != '\\') | |
1466 | #endif | |
1467 | #endif | |
1468 | (void)strcat(tokenbuf+len,"/"); | |
1469 | (void)strcat(tokenbuf+len,scriptname); | |
c07a80fd | 1470 | #endif /* !VMS */ |
a38d6535 LW |
1471 | |
1472 | #ifdef SEARCH_EXTS | |
1473 | len = strlen(tokenbuf); | |
1474 | if (extidx > 0) /* reset after previous loop */ | |
1475 | extidx = 0; | |
1476 | do { | |
1477 | #endif | |
760ac839 | 1478 | DEBUG_p(PerlIO_printf(Perl_debug_log, "Looking for %s\n",tokenbuf)); |
a38d6535 LW |
1479 | retval = Stat(tokenbuf,&statbuf); |
1480 | #ifdef SEARCH_EXTS | |
1481 | } while ( retval < 0 /* not there */ | |
1482 | && extidx>=0 && ext[extidx] /* try an extension? */ | |
1483 | && strcpy(tokenbuf+len, ext[extidx++]) | |
1484 | ); | |
1485 | #endif | |
1486 | if (retval < 0) | |
79072805 LW |
1487 | continue; |
1488 | if (S_ISREG(statbuf.st_mode) | |
1489 | && cando(S_IRUSR,TRUE,&statbuf) && cando(S_IXUSR,TRUE,&statbuf)) { | |
1490 | xfound = tokenbuf; /* bingo! */ | |
1491 | break; | |
1492 | } | |
1493 | if (!xfailed) | |
a0d0e21e | 1494 | xfailed = savepv(tokenbuf); |
79072805 LW |
1495 | } |
1496 | if (!xfound) | |
463ee0b2 | 1497 | croak("Can't execute %s", xfailed ? xfailed : scriptname ); |
79072805 LW |
1498 | if (xfailed) |
1499 | Safefree(xfailed); | |
1500 | scriptname = xfound; | |
1501 | } | |
1502 | ||
96436eeb | 1503 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { |
1504 | char *s = scriptname + 8; | |
1505 | fdscript = atoi(s); | |
1506 | while (isDIGIT(*s)) | |
1507 | s++; | |
1508 | if (*s) | |
1509 | scriptname = s + 1; | |
1510 | } | |
1511 | else | |
1512 | fdscript = -1; | |
ab821d7f | 1513 | origfilename = savepv(e_tmpname ? "-e" : scriptname); |
79072805 LW |
1514 | curcop->cop_filegv = gv_fetchfile(origfilename); |
1515 | if (strEQ(origfilename,"-")) | |
1516 | scriptname = ""; | |
96436eeb | 1517 | if (fdscript >= 0) { |
760ac839 | 1518 | rsfp = PerlIO_fdopen(fdscript,"r"); |
96436eeb | 1519 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
760ac839 | 1520 | fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ |
96436eeb | 1521 | #endif |
1522 | } | |
1523 | else if (preprocess) { | |
79072805 LW |
1524 | char *cpp = CPPSTDIN; |
1525 | ||
1526 | if (strEQ(cpp,"cppstdin")) | |
1527 | sprintf(tokenbuf, "%s/%s", SCRIPTDIR, cpp); | |
1528 | else | |
1529 | sprintf(tokenbuf, "%s", cpp); | |
1530 | sv_catpv(sv,"-I"); | |
fed7345c | 1531 | sv_catpv(sv,PRIVLIB_EXP); |
79072805 LW |
1532 | #ifdef MSDOS |
1533 | (void)sprintf(buf, "\ | |
1534 | sed %s -e \"/^[^#]/b\" \ | |
1535 | -e \"/^#[ ]*include[ ]/b\" \ | |
1536 | -e \"/^#[ ]*define[ ]/b\" \ | |
1537 | -e \"/^#[ ]*if[ ]/b\" \ | |
1538 | -e \"/^#[ ]*ifdef[ ]/b\" \ | |
1539 | -e \"/^#[ ]*ifndef[ ]/b\" \ | |
1540 | -e \"/^#[ ]*else/b\" \ | |
1541 | -e \"/^#[ ]*elif[ ]/b\" \ | |
1542 | -e \"/^#[ ]*undef[ ]/b\" \ | |
1543 | -e \"/^#[ ]*endif/b\" \ | |
1544 | -e \"s/^#.*//\" \ | |
1545 | %s | %s -C %s %s", | |
1546 | (doextract ? "-e \"1,/^#/d\n\"" : ""), | |
1547 | #else | |
1548 | (void)sprintf(buf, "\ | |
1549 | %s %s -e '/^[^#]/b' \ | |
1550 | -e '/^#[ ]*include[ ]/b' \ | |
1551 | -e '/^#[ ]*define[ ]/b' \ | |
1552 | -e '/^#[ ]*if[ ]/b' \ | |
1553 | -e '/^#[ ]*ifdef[ ]/b' \ | |
1554 | -e '/^#[ ]*ifndef[ ]/b' \ | |
1555 | -e '/^#[ ]*else/b' \ | |
1556 | -e '/^#[ ]*elif[ ]/b' \ | |
1557 | -e '/^#[ ]*undef[ ]/b' \ | |
1558 | -e '/^#[ ]*endif/b' \ | |
1559 | -e 's/^[ ]*#.*//' \ | |
1560 | %s | %s -C %s %s", | |
1561 | #ifdef LOC_SED | |
1562 | LOC_SED, | |
1563 | #else | |
1564 | "sed", | |
1565 | #endif | |
1566 | (doextract ? "-e '1,/^#/d\n'" : ""), | |
1567 | #endif | |
463ee0b2 | 1568 | scriptname, tokenbuf, SvPV(sv, na), CPPMINUS); |
79072805 LW |
1569 | doextract = FALSE; |
1570 | #ifdef IAMSUID /* actually, this is caught earlier */ | |
1571 | if (euid != uid && !euid) { /* if running suidperl */ | |
1572 | #ifdef HAS_SETEUID | |
1573 | (void)seteuid(uid); /* musn't stay setuid root */ | |
1574 | #else | |
1575 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1576 | (void)setreuid((Uid_t)-1, uid); |
1577 | #else | |
1578 | #ifdef HAS_SETRESUID | |
1579 | (void)setresuid((Uid_t)-1, uid, (Uid_t)-1); | |
79072805 LW |
1580 | #else |
1581 | setuid(uid); | |
1582 | #endif | |
1583 | #endif | |
85e6fe83 | 1584 | #endif |
79072805 | 1585 | if (geteuid() != uid) |
463ee0b2 | 1586 | croak("Can't do seteuid!\n"); |
79072805 LW |
1587 | } |
1588 | #endif /* IAMSUID */ | |
1589 | rsfp = my_popen(buf,"r"); | |
1590 | } | |
1591 | else if (!*scriptname) { | |
463ee0b2 | 1592 | taint_not("program input from stdin"); |
760ac839 | 1593 | rsfp = PerlIO_stdin(); |
79072805 | 1594 | } |
96436eeb | 1595 | else { |
760ac839 | 1596 | rsfp = PerlIO_open(scriptname,"r"); |
96436eeb | 1597 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
760ac839 | 1598 | fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ |
96436eeb | 1599 | #endif |
1600 | } | |
5dd60ef7 | 1601 | if (e_tmpname) { |
1602 | e_fp = rsfp; | |
1603 | } | |
760ac839 | 1604 | if ((PerlIO*)rsfp == Nullfp) { |
13281fa4 | 1605 | #ifdef DOSUID |
a687059c | 1606 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
a0d0e21e | 1607 | if (euid && Stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 && |
13281fa4 | 1608 | statbuf.st_mode & (S_ISUID|S_ISGID)) { |
27e2fb84 | 1609 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c | 1610 | execv(buf, origargv); /* try again */ |
463ee0b2 | 1611 | croak("Can't do setuid\n"); |
13281fa4 LW |
1612 | } |
1613 | #endif | |
1614 | #endif | |
463ee0b2 | 1615 | croak("Can't open perl script \"%s\": %s\n", |
2304df62 | 1616 | SvPVX(GvSV(curcop->cop_filegv)), Strerror(errno)); |
13281fa4 | 1617 | } |
79072805 | 1618 | } |
8d063cd8 | 1619 | |
79072805 | 1620 | static void |
96436eeb | 1621 | validate_suid(validarg, scriptname) |
79072805 | 1622 | char *validarg; |
96436eeb | 1623 | char *scriptname; |
79072805 | 1624 | { |
96436eeb | 1625 | int which; |
1626 | ||
13281fa4 LW |
1627 | /* do we need to emulate setuid on scripts? */ |
1628 | ||
1629 | /* This code is for those BSD systems that have setuid #! scripts disabled | |
1630 | * in the kernel because of a security problem. Merely defining DOSUID | |
1631 | * in perl will not fix that problem, but if you have disabled setuid | |
1632 | * scripts in the kernel, this will attempt to emulate setuid and setgid | |
1633 | * on scripts that have those now-otherwise-useless bits set. The setuid | |
27e2fb84 LW |
1634 | * root version must be called suidperl or sperlN.NNN. If regular perl |
1635 | * discovers that it has opened a setuid script, it calls suidperl with | |
1636 | * the same argv that it had. If suidperl finds that the script it has | |
1637 | * just opened is NOT setuid root, it sets the effective uid back to the | |
1638 | * uid. We don't just make perl setuid root because that loses the | |
1639 | * effective uid we had before invoking perl, if it was different from the | |
1640 | * uid. | |
13281fa4 LW |
1641 | * |
1642 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must | |
1643 | * be defined in suidperl only. suidperl must be setuid root. The | |
1644 | * Configure script will set this up for you if you want it. | |
1645 | */ | |
a687059c | 1646 | |
13281fa4 | 1647 | #ifdef DOSUID |
6e72f9df | 1648 | char *s, *s2; |
a0d0e21e | 1649 | |
760ac839 | 1650 | if (Fstat(PerlIO_fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */ |
463ee0b2 | 1651 | croak("Can't stat script \"%s\"",origfilename); |
96436eeb | 1652 | if (fdscript < 0 && statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 | 1653 | I32 len; |
13281fa4 | 1654 | |
a687059c | 1655 | #ifdef IAMSUID |
fe14fcc3 | 1656 | #ifndef HAS_SETREUID |
a687059c LW |
1657 | /* On this access check to make sure the directories are readable, |
1658 | * there is actually a small window that the user could use to make | |
1659 | * filename point to an accessible directory. So there is a faint | |
1660 | * chance that someone could execute a setuid script down in a | |
1661 | * non-accessible directory. I don't know what to do about that. | |
1662 | * But I don't think it's too important. The manual lies when | |
1663 | * it says access() is useful in setuid programs. | |
1664 | */ | |
463ee0b2 LW |
1665 | if (access(SvPVX(GvSV(curcop->cop_filegv)),1)) /*double check*/ |
1666 | croak("Permission denied"); | |
a687059c LW |
1667 | #else |
1668 | /* If we can swap euid and uid, then we can determine access rights | |
1669 | * with a simple stat of the file, and then compare device and | |
1670 | * inode to make sure we did stat() on the same file we opened. | |
1671 | * Then we just have to make sure he or she can execute it. | |
1672 | */ | |
1673 | { | |
1674 | struct stat tmpstatbuf; | |
1675 | ||
85e6fe83 LW |
1676 | if ( |
1677 | #ifdef HAS_SETREUID | |
1678 | setreuid(euid,uid) < 0 | |
a0d0e21e LW |
1679 | #else |
1680 | # if HAS_SETRESUID | |
85e6fe83 | 1681 | setresuid(euid,uid,(Uid_t)-1) < 0 |
a0d0e21e | 1682 | # endif |
85e6fe83 LW |
1683 | #endif |
1684 | || getuid() != euid || geteuid() != uid) | |
463ee0b2 | 1685 | croak("Can't swap uid and euid"); /* really paranoid */ |
a0d0e21e | 1686 | if (Stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0) |
463ee0b2 | 1687 | croak("Permission denied"); /* testing full pathname here */ |
a687059c LW |
1688 | if (tmpstatbuf.st_dev != statbuf.st_dev || |
1689 | tmpstatbuf.st_ino != statbuf.st_ino) { | |
760ac839 | 1690 | (void)PerlIO_close(rsfp); |
79072805 | 1691 | if (rsfp = my_popen("/bin/mail root","w")) { /* heh, heh */ |
760ac839 | 1692 | PerlIO_printf(rsfp, |
a687059c LW |
1693 | "User %d tried to run dev %d ino %d in place of dev %d ino %d!\n\ |
1694 | (Filename of set-id script was %s, uid %d gid %d.)\n\nSincerely,\nperl\n", | |
1695 | uid,tmpstatbuf.st_dev, tmpstatbuf.st_ino, | |
1696 | statbuf.st_dev, statbuf.st_ino, | |
463ee0b2 | 1697 | SvPVX(GvSV(curcop->cop_filegv)), |
20188a90 | 1698 | statbuf.st_uid, statbuf.st_gid); |
79072805 | 1699 | (void)my_pclose(rsfp); |
a687059c | 1700 | } |
463ee0b2 | 1701 | croak("Permission denied\n"); |
a687059c | 1702 | } |
85e6fe83 LW |
1703 | if ( |
1704 | #ifdef HAS_SETREUID | |
1705 | setreuid(uid,euid) < 0 | |
a0d0e21e LW |
1706 | #else |
1707 | # if defined(HAS_SETRESUID) | |
85e6fe83 | 1708 | setresuid(uid,euid,(Uid_t)-1) < 0 |
a0d0e21e | 1709 | # endif |
85e6fe83 LW |
1710 | #endif |
1711 | || getuid() != uid || geteuid() != euid) | |
463ee0b2 | 1712 | croak("Can't reswap uid and euid"); |
27e2fb84 | 1713 | if (!cando(S_IXUSR,FALSE,&statbuf)) /* can real uid exec? */ |
463ee0b2 | 1714 | croak("Permission denied\n"); |
a687059c | 1715 | } |
fe14fcc3 | 1716 | #endif /* HAS_SETREUID */ |
a687059c LW |
1717 | #endif /* IAMSUID */ |
1718 | ||
27e2fb84 | 1719 | if (!S_ISREG(statbuf.st_mode)) |
463ee0b2 | 1720 | croak("Permission denied"); |
27e2fb84 | 1721 | if (statbuf.st_mode & S_IWOTH) |
463ee0b2 | 1722 | croak("Setuid/gid script is writable by world"); |
13281fa4 | 1723 | doswitches = FALSE; /* -s is insecure in suid */ |
79072805 | 1724 | curcop->cop_line++; |
760ac839 LW |
1725 | if (sv_gets(linestr, rsfp, 0) == Nullch || |
1726 | strnNE(SvPV(linestr,na),"#!",2) ) /* required even on Sys V */ | |
463ee0b2 | 1727 | croak("No #! line"); |
760ac839 | 1728 | s = SvPV(linestr,na)+2; |
663a0e37 | 1729 | if (*s == ' ') s++; |
45d8adaa | 1730 | while (!isSPACE(*s)) s++; |
760ac839 | 1731 | for (s2 = s; (s2 > SvPV(linestr,na)+2 && |
6e72f9df | 1732 | (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ; |
1733 | if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ | |
463ee0b2 | 1734 | croak("Not a perl script"); |
a687059c | 1735 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 LW |
1736 | /* |
1737 | * #! arg must be what we saw above. They can invoke it by | |
1738 | * mentioning suidperl explicitly, but they may not add any strange | |
1739 | * arguments beyond what #! says if they do invoke suidperl that way. | |
1740 | */ | |
1741 | len = strlen(validarg); | |
1742 | if (strEQ(validarg," PHOOEY ") || | |
45d8adaa | 1743 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
463ee0b2 | 1744 | croak("Args must match #! line"); |
a687059c LW |
1745 | |
1746 | #ifndef IAMSUID | |
1747 | if (euid != uid && (statbuf.st_mode & S_ISUID) && | |
1748 | euid == statbuf.st_uid) | |
1749 | if (!do_undump) | |
463ee0b2 | 1750 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
1751 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1752 | #endif /* IAMSUID */ | |
13281fa4 LW |
1753 | |
1754 | if (euid) { /* oops, we're not the setuid root perl */ | |
760ac839 | 1755 | (void)PerlIO_close(rsfp); |
13281fa4 | 1756 | #ifndef IAMSUID |
27e2fb84 | 1757 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c | 1758 | execv(buf, origargv); /* try again */ |
13281fa4 | 1759 | #endif |
463ee0b2 | 1760 | croak("Can't do setuid\n"); |
13281fa4 LW |
1761 | } |
1762 | ||
83025b21 | 1763 | if (statbuf.st_mode & S_ISGID && statbuf.st_gid != egid) { |
fe14fcc3 | 1764 | #ifdef HAS_SETEGID |
a687059c LW |
1765 | (void)setegid(statbuf.st_gid); |
1766 | #else | |
fe14fcc3 | 1767 | #ifdef HAS_SETREGID |
85e6fe83 LW |
1768 | (void)setregid((Gid_t)-1,statbuf.st_gid); |
1769 | #else | |
1770 | #ifdef HAS_SETRESGID | |
1771 | (void)setresgid((Gid_t)-1,statbuf.st_gid,(Gid_t)-1); | |
a687059c LW |
1772 | #else |
1773 | setgid(statbuf.st_gid); | |
1774 | #endif | |
1775 | #endif | |
85e6fe83 | 1776 | #endif |
83025b21 | 1777 | if (getegid() != statbuf.st_gid) |
463ee0b2 | 1778 | croak("Can't do setegid!\n"); |
83025b21 | 1779 | } |
a687059c LW |
1780 | if (statbuf.st_mode & S_ISUID) { |
1781 | if (statbuf.st_uid != euid) | |
fe14fcc3 | 1782 | #ifdef HAS_SETEUID |
a687059c LW |
1783 | (void)seteuid(statbuf.st_uid); /* all that for this */ |
1784 | #else | |
fe14fcc3 | 1785 | #ifdef HAS_SETREUID |
85e6fe83 LW |
1786 | (void)setreuid((Uid_t)-1,statbuf.st_uid); |
1787 | #else | |
1788 | #ifdef HAS_SETRESUID | |
1789 | (void)setresuid((Uid_t)-1,statbuf.st_uid,(Uid_t)-1); | |
a687059c LW |
1790 | #else |
1791 | setuid(statbuf.st_uid); | |
1792 | #endif | |
1793 | #endif | |
85e6fe83 | 1794 | #endif |
83025b21 | 1795 | if (geteuid() != statbuf.st_uid) |
463ee0b2 | 1796 | croak("Can't do seteuid!\n"); |
a687059c | 1797 | } |
83025b21 | 1798 | else if (uid) { /* oops, mustn't run as root */ |
fe14fcc3 | 1799 | #ifdef HAS_SETEUID |
85e6fe83 | 1800 | (void)seteuid((Uid_t)uid); |
a687059c | 1801 | #else |
fe14fcc3 | 1802 | #ifdef HAS_SETREUID |
85e6fe83 | 1803 | (void)setreuid((Uid_t)-1,(Uid_t)uid); |
a687059c | 1804 | #else |
85e6fe83 LW |
1805 | #ifdef HAS_SETRESUID |
1806 | (void)setresuid((Uid_t)-1,(Uid_t)uid,(Uid_t)-1); | |
1807 | #else | |
1808 | setuid((Uid_t)uid); | |
1809 | #endif | |
a687059c LW |
1810 | #endif |
1811 | #endif | |
83025b21 | 1812 | if (geteuid() != uid) |
463ee0b2 | 1813 | croak("Can't do seteuid!\n"); |
83025b21 | 1814 | } |
748a9306 | 1815 | init_ids(); |
27e2fb84 | 1816 | if (!cando(S_IXUSR,TRUE,&statbuf)) |
463ee0b2 | 1817 | croak("Permission denied\n"); /* they can't do this */ |
13281fa4 LW |
1818 | } |
1819 | #ifdef IAMSUID | |
1820 | else if (preprocess) | |
463ee0b2 | 1821 | croak("-P not allowed for setuid/setgid script\n"); |
96436eeb | 1822 | else if (fdscript >= 0) |
1823 | croak("fd script not allowed in suidperl\n"); | |
13281fa4 | 1824 | else |
463ee0b2 | 1825 | croak("Script is not setuid/setgid in suidperl\n"); |
96436eeb | 1826 | |
1827 | /* We absolutely must clear out any saved ids here, so we */ | |
1828 | /* exec the real perl, substituting fd script for scriptname. */ | |
1829 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ | |
760ac839 LW |
1830 | PerlIO_rewind(rsfp); |
1831 | lseek(PerlIO_fileno(rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
96436eeb | 1832 | for (which = 1; origargv[which] && origargv[which] != scriptname; which++) ; |
1833 | if (!origargv[which]) | |
1834 | croak("Permission denied"); | |
760ac839 | 1835 | (void)sprintf(buf, "/dev/fd/%d/%.127s", PerlIO_fileno(rsfp), origargv[which]); |
96436eeb | 1836 | origargv[which] = buf; |
1837 | ||
1838 | #if defined(HAS_FCNTL) && defined(F_SETFD) | |
760ac839 | 1839 | fcntl(PerlIO_fileno(rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb | 1840 | #endif |
1841 | ||
1842 | (void)sprintf(tokenbuf, "%s/perl%s", BIN, patchlevel); | |
1843 | execv(tokenbuf, origargv); /* try again */ | |
1844 | croak("Can't do setuid\n"); | |
13281fa4 | 1845 | #endif /* IAMSUID */ |
a687059c | 1846 | #else /* !DOSUID */ |
a687059c LW |
1847 | if (euid != uid || egid != gid) { /* (suidperl doesn't exist, in fact) */ |
1848 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW | |
760ac839 | 1849 | Fstat(PerlIO_fileno(rsfp),&statbuf); /* may be either wrapped or real suid */ |
a687059c LW |
1850 | if ((euid != uid && euid == statbuf.st_uid && statbuf.st_mode & S_ISUID) |
1851 | || | |
1852 | (egid != gid && egid == statbuf.st_gid && statbuf.st_mode & S_ISGID) | |
1853 | ) | |
1854 | if (!do_undump) | |
463ee0b2 | 1855 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
1856 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1857 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ | |
1858 | /* not set-id, must be wrapped */ | |
a687059c | 1859 | } |
13281fa4 | 1860 | #endif /* DOSUID */ |
79072805 | 1861 | } |
13281fa4 | 1862 | |
79072805 LW |
1863 | static void |
1864 | find_beginning() | |
1865 | { | |
6e72f9df | 1866 | register char *s, *s2; |
33b78306 LW |
1867 | |
1868 | /* skip forward in input to the real script? */ | |
1869 | ||
463ee0b2 | 1870 | taint_not("-x"); |
33b78306 | 1871 | while (doextract) { |
79072805 | 1872 | if ((s = sv_gets(linestr, rsfp, 0)) == Nullch) |
463ee0b2 | 1873 | croak("No Perl script found in input\n"); |
6e72f9df | 1874 | if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) { |
760ac839 | 1875 | PerlIO_ungetc(rsfp, '\n'); /* to keep line count right */ |
33b78306 | 1876 | doextract = FALSE; |
6e72f9df | 1877 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
1878 | s2 = s; | |
1879 | while (*s == ' ' || *s == '\t') s++; | |
1880 | if (*s++ == '-') { | |
1881 | while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--; | |
1882 | if (strnEQ(s2-4,"perl",4)) | |
1883 | /*SUPPRESS 530*/ | |
1884 | while (s = moreswitches(s)) ; | |
33b78306 | 1885 | } |
79072805 | 1886 | if (cddir && chdir(cddir) < 0) |
463ee0b2 | 1887 | croak("Can't chdir to %s",cddir); |
83025b21 LW |
1888 | } |
1889 | } | |
1890 | } | |
1891 | ||
79072805 | 1892 | static void |
748a9306 | 1893 | init_ids() |
352d5a3a | 1894 | { |
748a9306 LW |
1895 | uid = (int)getuid(); |
1896 | euid = (int)geteuid(); | |
1897 | gid = (int)getgid(); | |
1898 | egid = (int)getegid(); | |
1899 | #ifdef VMS | |
1900 | uid |= gid << 16; | |
1901 | euid |= egid << 16; | |
1902 | #endif | |
4633a7c4 | 1903 | tainting |= (uid && (euid != uid || egid != gid)); |
748a9306 | 1904 | } |
79072805 | 1905 | |
748a9306 LW |
1906 | static void |
1907 | init_debugger() | |
1908 | { | |
79072805 | 1909 | curstash = debstash; |
748a9306 | 1910 | dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); |
79072805 | 1911 | AvREAL_off(dbargs); |
a0d0e21e LW |
1912 | DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); |
1913 | DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); | |
748a9306 LW |
1914 | DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); |
1915 | DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); | |
c07a80fd | 1916 | sv_setiv(DBsingle, 0); |
748a9306 | 1917 | DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); |
c07a80fd | 1918 | sv_setiv(DBtrace, 0); |
748a9306 | 1919 | DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); |
c07a80fd | 1920 | sv_setiv(DBsignal, 0); |
79072805 | 1921 | curstash = defstash; |
352d5a3a LW |
1922 | } |
1923 | ||
79072805 | 1924 | static void |
8990e307 | 1925 | init_stacks() |
79072805 | 1926 | { |
6e72f9df | 1927 | curstack = newAV(); |
1928 | mainstack = curstack; /* remember in case we switch stacks */ | |
1929 | AvREAL_off(curstack); /* not a real array */ | |
1930 | av_extend(curstack,127); | |
79072805 | 1931 | |
6e72f9df | 1932 | stack_base = AvARRAY(curstack); |
79072805 | 1933 | stack_sp = stack_base; |
8990e307 | 1934 | stack_max = stack_base + 127; |
79072805 | 1935 | |
6e72f9df | 1936 | /* Shouldn't these stacks be per-interpreter? */ |
1937 | if (markstack) { | |
1938 | markstack_ptr = markstack; | |
1939 | } else { | |
1940 | New(54,markstack,64,I32); | |
1941 | markstack_ptr = markstack; | |
1942 | markstack_max = markstack + 64; | |
1943 | } | |
79072805 | 1944 | |
6e72f9df | 1945 | if (scopestack) { |
1946 | scopestack_ix = 0; | |
1947 | } else { | |
1948 | New(54,scopestack,32,I32); | |
1949 | scopestack_ix = 0; | |
1950 | scopestack_max = 32; | |
1951 | } | |
79072805 | 1952 | |
6e72f9df | 1953 | if (savestack) { |
1954 | savestack_ix = 0; | |
1955 | } else { | |
1956 | New(54,savestack,128,ANY); | |
1957 | savestack_ix = 0; | |
1958 | savestack_max = 128; | |
1959 | } | |
79072805 | 1960 | |
6e72f9df | 1961 | if (retstack) { |
1962 | retstack_ix = 0; | |
1963 | } else { | |
1964 | New(54,retstack,16,OP*); | |
1965 | retstack_ix = 0; | |
1966 | retstack_max = 16; | |
1967 | } | |
8d063cd8 | 1968 | |
a5f75d66 AD |
1969 | cxstack_max = 8192 / sizeof(CONTEXT) - 2; /* Use most of 8K. */ |
1970 | New(50,cxstack,cxstack_max + 1,CONTEXT); | |
8990e307 | 1971 | cxstack_ix = -1; |
8990e307 LW |
1972 | |
1973 | New(50,tmps_stack,128,SV*); | |
1974 | tmps_ix = -1; | |
1975 | tmps_max = 128; | |
1976 | ||
79072805 LW |
1977 | DEBUG( { |
1978 | New(51,debname,128,char); | |
1979 | New(52,debdelim,128,char); | |
1980 | } ) | |
378cc40b | 1981 | } |
33b78306 | 1982 | |
6e72f9df | 1983 | static void |
1984 | nuke_stacks() | |
1985 | { | |
1986 | Safefree(cxstack); | |
1987 | Safefree(tmps_stack); | |
1988 | } | |
1989 | ||
760ac839 | 1990 | static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
79072805 | 1991 | static void |
8990e307 LW |
1992 | init_lexer() |
1993 | { | |
a0d0e21e | 1994 | tmpfp = rsfp; |
8990e307 LW |
1995 | |
1996 | lex_start(linestr); | |
1997 | rsfp = tmpfp; | |
1998 | subname = newSVpv("main",4); | |
1999 | } | |
2000 | ||
2001 | static void | |
79072805 | 2002 | init_predump_symbols() |
45d8adaa | 2003 | { |
93a17b20 | 2004 | GV *tmpgv; |
a0d0e21e | 2005 | GV *othergv; |
79072805 | 2006 | |
85e6fe83 | 2007 | sv_setpvn(GvSV(gv_fetchpv("\"", TRUE, SVt_PV)), " ", 1); |
79072805 | 2008 | |
85e6fe83 | 2009 | stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
a5f75d66 | 2010 | GvMULTI_on(stdingv); |
760ac839 | 2011 | IoIFP(GvIOp(stdingv)) = PerlIO_stdin(); |
adbc6bb1 | 2012 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 | 2013 | GvMULTI_on(tmpgv); |
a0d0e21e | 2014 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(stdingv)); |
79072805 | 2015 | |
85e6fe83 | 2016 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 | 2017 | GvMULTI_on(tmpgv); |
760ac839 | 2018 | IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout(); |
4633a7c4 | 2019 | setdefout(tmpgv); |
adbc6bb1 | 2020 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 | 2021 | GvMULTI_on(tmpgv); |
a0d0e21e | 2022 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(defoutgv)); |
79072805 | 2023 | |
a0d0e21e | 2024 | othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
a5f75d66 | 2025 | GvMULTI_on(othergv); |
760ac839 | 2026 | IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr(); |
adbc6bb1 | 2027 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 | 2028 | GvMULTI_on(tmpgv); |
a0d0e21e | 2029 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv)); |
79072805 LW |
2030 | |
2031 | statname = NEWSV(66,0); /* last filename we did stat on */ | |
ab821d7f | 2032 | |
6e72f9df | 2033 | if (!osname) |
2034 | osname = savepv(OSNAME); | |
79072805 | 2035 | } |
33b78306 | 2036 | |
79072805 LW |
2037 | static void |
2038 | init_postdump_symbols(argc,argv,env) | |
2039 | register int argc; | |
2040 | register char **argv; | |
2041 | register char **env; | |
33b78306 | 2042 | { |
79072805 LW |
2043 | char *s; |
2044 | SV *sv; | |
2045 | GV* tmpgv; | |
fe14fcc3 | 2046 | |
79072805 LW |
2047 | argc--,argv++; /* skip name of script */ |
2048 | if (doswitches) { | |
2049 | for (; argc > 0 && **argv == '-'; argc--,argv++) { | |
2050 | if (!argv[0][1]) | |
2051 | break; | |
2052 | if (argv[0][1] == '-') { | |
2053 | argc--,argv++; | |
2054 | break; | |
2055 | } | |
93a17b20 | 2056 | if (s = strchr(argv[0], '=')) { |
79072805 | 2057 | *s++ = '\0'; |
85e6fe83 | 2058 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 LW |
2059 | } |
2060 | else | |
85e6fe83 | 2061 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 | 2062 | } |
79072805 LW |
2063 | } |
2064 | toptarget = NEWSV(0,0); | |
2065 | sv_upgrade(toptarget, SVt_PVFM); | |
2066 | sv_setpvn(toptarget, "", 0); | |
748a9306 | 2067 | bodytarget = NEWSV(0,0); |
79072805 LW |
2068 | sv_upgrade(bodytarget, SVt_PVFM); |
2069 | sv_setpvn(bodytarget, "", 0); | |
2070 | formtarget = bodytarget; | |
2071 | ||
79072805 | 2072 | tainted = 1; |
85e6fe83 | 2073 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
79072805 LW |
2074 | sv_setpv(GvSV(tmpgv),origfilename); |
2075 | magicname("0", "0", 1); | |
2076 | } | |
85e6fe83 | 2077 | if (tmpgv = gv_fetchpv("\024",TRUE, SVt_PV)) |
79072805 | 2078 | time(&basetime); |
85e6fe83 | 2079 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
79072805 | 2080 | sv_setpv(GvSV(tmpgv),origargv[0]); |
85e6fe83 | 2081 | if (argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { |
a5f75d66 | 2082 | GvMULTI_on(argvgv); |
79072805 LW |
2083 | (void)gv_AVadd(argvgv); |
2084 | av_clear(GvAVn(argvgv)); | |
2085 | for (; argc > 0; argc--,argv++) { | |
a0d0e21e | 2086 | av_push(GvAVn(argvgv),newSVpv(argv[0],0)); |
79072805 LW |
2087 | } |
2088 | } | |
85e6fe83 | 2089 | if (envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 | 2090 | HV *hv; |
a5f75d66 | 2091 | GvMULTI_on(envgv); |
79072805 | 2092 | hv = GvHVn(envgv); |
463ee0b2 | 2093 | hv_clear(hv); |
a0d0e21e | 2094 | #ifndef VMS /* VMS doesn't have environ array */ |
4633a7c4 LW |
2095 | /* Note that if the supplied env parameter is actually a copy |
2096 | of the global environ then it may now point to free'd memory | |
2097 | if the environment has been modified since. To avoid this | |
2098 | problem we treat env==NULL as meaning 'use the default' | |
2099 | */ | |
2100 | if (!env) | |
2101 | env = environ; | |
8990e307 | 2102 | if (env != environ) { |
79072805 | 2103 | environ[0] = Nullch; |
8990e307 LW |
2104 | hv_magic(hv, envgv, 'E'); |
2105 | } | |
79072805 | 2106 | for (; *env; env++) { |
93a17b20 | 2107 | if (!(s = strchr(*env,'='))) |
79072805 LW |
2108 | continue; |
2109 | *s++ = '\0'; | |
2110 | sv = newSVpv(s--,0); | |
85e6fe83 | 2111 | sv_magic(sv, sv, 'e', *env, s - *env); |
79072805 LW |
2112 | (void)hv_store(hv, *env, s - *env, sv, 0); |
2113 | *s = '='; | |
fe14fcc3 | 2114 | } |
4550b24a | 2115 | #endif |
2116 | #ifdef DYNAMIC_ENV_FETCH | |
2117 | HvNAME(hv) = savepv(ENV_HV_NAME); | |
2118 | #endif | |
f511e57f | 2119 | hv_magic(hv, envgv, 'E'); |
79072805 | 2120 | } |
79072805 | 2121 | tainted = 0; |
85e6fe83 | 2122 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
79072805 LW |
2123 | sv_setiv(GvSV(tmpgv),(I32)getpid()); |
2124 | ||
33b78306 | 2125 | } |
34de22dd | 2126 | |
79072805 LW |
2127 | static void |
2128 | init_perllib() | |
34de22dd | 2129 | { |
85e6fe83 LW |
2130 | char *s; |
2131 | if (!tainting) { | |
552a7a9b | 2132 | #ifndef VMS |
85e6fe83 LW |
2133 | s = getenv("PERL5LIB"); |
2134 | if (s) | |
2135 | incpush(s); | |
2136 | else | |
2137 | incpush(getenv("PERLLIB")); | |
552a7a9b | 2138 | #else /* VMS */ |
2139 | /* Treat PERL5?LIB as a possible search list logical name -- the | |
2140 | * "natural" VMS idiom for a Unix path string. We allow each | |
2141 | * element to be a set of |-separated directories for compatibility. | |
2142 | */ | |
2143 | char buf[256]; | |
2144 | int idx = 0; | |
2145 | if (my_trnlnm("PERL5LIB",buf,0)) | |
2146 | do { incpush(buf); } while (my_trnlnm("PERL5LIB",buf,++idx)); | |
2147 | else | |
2148 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf); | |
2149 | #endif /* VMS */ | |
85e6fe83 | 2150 | } |
34de22dd | 2151 | |
df5cef82 | 2152 | /* Use the ~-expanded versions of APPLIB (undocumented), |
2153 | ARCHLIB PRIVLIB SITEARCH SITELIB and OLDARCHLIB | |
2154 | */ | |
4633a7c4 LW |
2155 | #ifdef APPLLIB_EXP |
2156 | incpush(APPLLIB_EXP); | |
16d20bd9 | 2157 | #endif |
4633a7c4 | 2158 | |
fed7345c AD |
2159 | #ifdef ARCHLIB_EXP |
2160 | incpush(ARCHLIB_EXP); | |
a0d0e21e | 2161 | #endif |
fed7345c AD |
2162 | #ifndef PRIVLIB_EXP |
2163 | #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" | |
34de22dd | 2164 | #endif |
fed7345c | 2165 | incpush(PRIVLIB_EXP); |
4633a7c4 LW |
2166 | |
2167 | #ifdef SITEARCH_EXP | |
2168 | incpush(SITEARCH_EXP); | |
2169 | #endif | |
2170 | #ifdef SITELIB_EXP | |
2171 | incpush(SITELIB_EXP); | |
2172 | #endif | |
2173 | #ifdef OLDARCHLIB_EXP /* 5.00[01] compatibility */ | |
2174 | incpush(OLDARCHLIB_EXP); | |
2175 | #endif | |
a0d0e21e | 2176 | |
4633a7c4 LW |
2177 | if (!tainting) |
2178 | incpush("."); | |
34de22dd | 2179 | } |
93a17b20 LW |
2180 | |
2181 | void | |
2182 | calllist(list) | |
2183 | AV* list; | |
2184 | { | |
a5f75d66 | 2185 | Sigjmp_buf oldtop; |
a0d0e21e LW |
2186 | STRLEN len; |
2187 | line_t oldline = curcop->cop_line; | |
93a17b20 | 2188 | |
a5f75d66 | 2189 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
93a17b20 | 2190 | |
8990e307 LW |
2191 | while (AvFILL(list) >= 0) { |
2192 | CV *cv = (CV*)av_shift(list); | |
93a17b20 | 2193 | |
8990e307 | 2194 | SAVEFREESV(cv); |
a0d0e21e | 2195 | |
a5f75d66 | 2196 | switch (Sigsetjmp(top_env,1)) { |
748a9306 | 2197 | case 0: { |
4633a7c4 | 2198 | SV* atsv = GvSV(errgv); |
748a9306 LW |
2199 | PUSHMARK(stack_sp); |
2200 | perl_call_sv((SV*)cv, G_EVAL|G_DISCARD); | |
2201 | (void)SvPV(atsv, len); | |
2202 | if (len) { | |
a5f75d66 | 2203 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
748a9306 LW |
2204 | curcop = &compiling; |
2205 | curcop->cop_line = oldline; | |
2206 | if (list == beginav) | |
2207 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); | |
2208 | else | |
2209 | sv_catpv(atsv, "END failed--cleanup aborted"); | |
2210 | croak("%s", SvPVX(atsv)); | |
2211 | } | |
a0d0e21e | 2212 | } |
85e6fe83 LW |
2213 | break; |
2214 | case 1: | |
748a9306 | 2215 | #ifdef VMS |
85e6fe83 | 2216 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 LW |
2217 | #else |
2218 | statusvalue = 1; | |
2219 | #endif | |
85e6fe83 LW |
2220 | /* FALL THROUGH */ |
2221 | case 2: | |
2222 | /* my_exit() was called */ | |
2223 | curstash = defstash; | |
2224 | if (endav) | |
2225 | calllist(endav); | |
a0d0e21e | 2226 | FREETMPS; |
a5f75d66 | 2227 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
2228 | curcop = &compiling; |
2229 | curcop->cop_line = oldline; | |
85e6fe83 LW |
2230 | if (statusvalue) { |
2231 | if (list == beginav) | |
a0d0e21e | 2232 | croak("BEGIN failed--compilation aborted"); |
85e6fe83 | 2233 | else |
a0d0e21e | 2234 | croak("END failed--cleanup aborted"); |
85e6fe83 | 2235 | } |
85e6fe83 LW |
2236 | my_exit(statusvalue); |
2237 | /* NOTREACHED */ | |
2238 | return; | |
2239 | case 3: | |
2240 | if (!restartop) { | |
760ac839 | 2241 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e | 2242 | FREETMPS; |
85e6fe83 LW |
2243 | break; |
2244 | } | |
a5f75d66 | 2245 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
2246 | curcop = &compiling; |
2247 | curcop->cop_line = oldline; | |
a5f75d66 | 2248 | Siglongjmp(top_env, 3); |
8990e307 | 2249 | } |
93a17b20 LW |
2250 | } |
2251 | ||
a5f75d66 | 2252 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
93a17b20 LW |
2253 | } |
2254 |