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 | |
a0d0e21e LW |
18 | /* Omit -- it causes too much grief on mixed systems. |
19 | #ifdef I_UNISTD | |
20 | #include <unistd.h> | |
21 | #endif | |
22 | */ | |
23 | ||
4633a7c4 | 24 | dEXT char rcsid[] = "perl.c\nPatch level: ###\n"; |
463ee0b2 | 25 | |
a687059c LW |
26 | #ifdef IAMSUID |
27 | #ifndef DOSUID | |
28 | #define DOSUID | |
29 | #endif | |
30 | #endif | |
378cc40b | 31 | |
a687059c LW |
32 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
33 | #ifdef DOSUID | |
34 | #undef DOSUID | |
35 | #endif | |
36 | #endif | |
8d063cd8 | 37 | |
a0d0e21e LW |
38 | static void find_beginning _((void)); |
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 AD |
123 | |
124 | #if defined(SUBVERSION) && SUBVERSION > 0 | |
125 | sprintf(patchlevel, "%7.5f", 5.0 + (PATCHLEVEL / 1000.0) | |
126 | + (SUBVERSION / 100000.0)); | |
127 | #else | |
a0d0e21e | 128 | sprintf(patchlevel, "%5.3f", 5.0 + (PATCHLEVEL / 1000.0)); |
a5f75d66 | 129 | #endif |
79072805 | 130 | |
ab821d7f | 131 | #if defined(LOCAL_PATCH_COUNT) |
6e72f9df | 132 | localpatches = local_patches; /* For possible -v */ |
ab821d7f | 133 | #endif |
134 | ||
79072805 | 135 | fdpid = newAV(); /* for remembering popen pids by fd */ |
463ee0b2 | 136 | pidstatus = newHV();/* for remembering status of dead pids */ |
8990e307 LW |
137 | |
138 | init_stacks(); | |
139 | ENTER; | |
79072805 LW |
140 | } |
141 | ||
142 | void | |
748a9306 | 143 | perl_destruct(sv_interp) |
93a17b20 | 144 | register PerlInterpreter *sv_interp; |
79072805 | 145 | { |
748a9306 | 146 | int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
8990e307 | 147 | I32 last_sv_count; |
a0d0e21e | 148 | HV *hv; |
8990e307 | 149 | |
79072805 LW |
150 | if (!(curinterp = sv_interp)) |
151 | return; | |
748a9306 LW |
152 | |
153 | destruct_level = perl_destruct_level; | |
4633a7c4 LW |
154 | #ifdef DEBUGGING |
155 | { | |
156 | char *s; | |
157 | if (s = getenv("PERL_DESTRUCT_LEVEL")) | |
158 | destruct_level = atoi(s); | |
159 | } | |
160 | #endif | |
161 | ||
8990e307 | 162 | LEAVE; |
a0d0e21e LW |
163 | FREETMPS; |
164 | ||
6e72f9df | 165 | /* We must account for everything. First the syntax tree. */ |
166 | if (main_root) { | |
167 | curpad = AvARRAY(comppad); | |
168 | op_free(main_root); | |
169 | main_root = 0; | |
a0d0e21e LW |
170 | } |
171 | if (sv_objcount) { | |
172 | /* | |
173 | * Try to destruct global references. We do this first so that the | |
174 | * destructors and destructees still exist. Some sv's might remain. | |
175 | * Non-referenced objects are on their own. | |
176 | */ | |
177 | ||
178 | dirty = TRUE; | |
179 | sv_clean_objs(); | |
8990e307 LW |
180 | } |
181 | ||
a0d0e21e | 182 | if (destruct_level == 0){ |
8990e307 | 183 | |
a0d0e21e LW |
184 | DEBUG_P(debprofdump()); |
185 | ||
186 | /* The exit() function will do everything that needs doing. */ | |
187 | return; | |
188 | } | |
189 | ||
190 | /* Prepare to destruct main symbol table. */ | |
191 | hv = defstash; | |
85e6fe83 | 192 | defstash = 0; |
a0d0e21e LW |
193 | SvREFCNT_dec(hv); |
194 | ||
195 | FREETMPS; | |
196 | if (destruct_level >= 2) { | |
197 | if (scopestack_ix != 0) | |
198 | warn("Unbalanced scopes: %d more ENTERs than LEAVEs\n", scopestack_ix); | |
199 | if (savestack_ix != 0) | |
200 | warn("Unbalanced saves: %d more saves than restores\n", savestack_ix); | |
201 | if (tmps_floor != -1) | |
202 | warn("Unbalanced tmps: %d more allocs than frees\n", tmps_floor + 1); | |
203 | if (cxstack_ix != -1) | |
204 | warn("Unbalanced context: %d more PUSHes than POPs\n", cxstack_ix + 1); | |
205 | } | |
8990e307 LW |
206 | |
207 | /* Now absolutely destruct everything, somehow or other, loops or no. */ | |
8990e307 | 208 | last_sv_count = 0; |
6e72f9df | 209 | SvFLAGS(strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
8990e307 LW |
210 | while (sv_count != 0 && sv_count != last_sv_count) { |
211 | last_sv_count = sv_count; | |
212 | sv_clean_all(); | |
213 | } | |
6e72f9df | 214 | SvFLAGS(strtab) &= ~SVTYPEMASK; |
215 | SvFLAGS(strtab) |= SVt_PVHV; | |
216 | ||
217 | /* Destruct the global string table. */ | |
218 | { | |
219 | /* Yell and reset the HeVAL() slots that are still holding refcounts, | |
220 | * so that sv_free() won't fail on them. | |
221 | */ | |
222 | I32 riter; | |
223 | I32 max; | |
224 | HE *hent; | |
225 | HE **array; | |
226 | ||
227 | riter = 0; | |
228 | max = HvMAX(strtab); | |
229 | array = HvARRAY(strtab); | |
230 | hent = array[0]; | |
231 | for (;;) { | |
232 | if (hent) { | |
233 | warn("Unbalanced string table refcount: (%d) for \"%s\"", | |
234 | HeVAL(hent) - Nullsv, HeKEY(hent)); | |
235 | HeVAL(hent) = Nullsv; | |
236 | hent = HeNEXT(hent); | |
237 | } | |
238 | if (!hent) { | |
239 | if (++riter > max) | |
240 | break; | |
241 | hent = array[riter]; | |
242 | } | |
243 | } | |
244 | } | |
245 | SvREFCNT_dec(strtab); | |
246 | ||
8990e307 LW |
247 | if (sv_count != 0) |
248 | warn("Scalars leaked: %d\n", sv_count); | |
6e72f9df | 249 | |
4633a7c4 | 250 | sv_free_arenas(); |
a0d0e21e | 251 | |
6e72f9df | 252 | linestr = NULL; /* No SVs have survived, need to clean out */ |
253 | if (origfilename) | |
254 | Safefree(origfilename); | |
255 | nuke_stacks(); | |
256 | hints = 0; /* Reset hints. Should hints be per-interpreter ? */ | |
257 | ||
a0d0e21e | 258 | DEBUG_P(debprofdump()); |
79072805 LW |
259 | } |
260 | ||
261 | void | |
262 | perl_free(sv_interp) | |
93a17b20 | 263 | PerlInterpreter *sv_interp; |
79072805 LW |
264 | { |
265 | if (!(curinterp = sv_interp)) | |
266 | return; | |
267 | Safefree(sv_interp); | |
268 | } | |
ecfc5424 | 269 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) |
a0d0e21e LW |
270 | char *getenv _((char *)); /* Usually in <stdlib.h> */ |
271 | #endif | |
79072805 LW |
272 | |
273 | int | |
a0d0e21e | 274 | perl_parse(sv_interp, xsinit, argc, argv, env) |
93a17b20 | 275 | PerlInterpreter *sv_interp; |
a0d0e21e LW |
276 | void (*xsinit)_((void)); |
277 | int argc; | |
278 | char **argv; | |
79072805 | 279 | char **env; |
8d063cd8 | 280 | { |
79072805 | 281 | register SV *sv; |
8d063cd8 | 282 | register char *s; |
1a30305b | 283 | char *scriptname = NULL; |
a0d0e21e | 284 | VOL bool dosearch = FALSE; |
13281fa4 | 285 | char *validarg = ""; |
748a9306 | 286 | AV* comppadlist; |
8d063cd8 | 287 | |
a687059c LW |
288 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
289 | #ifdef IAMSUID | |
290 | #undef IAMSUID | |
463ee0b2 | 291 | croak("suidperl is no longer needed since the kernel can now execute\n\ |
a687059c LW |
292 | setuid perl scripts securely.\n"); |
293 | #endif | |
294 | #endif | |
295 | ||
79072805 LW |
296 | if (!(curinterp = sv_interp)) |
297 | return 255; | |
298 | ||
6e72f9df | 299 | #if defined(NeXT) && defined(__DYNAMIC__) |
300 | _dyld_lookup_and_bind | |
301 | ("__environ", (unsigned long *) &environ_pointer, NULL); | |
302 | #endif /* environ */ | |
303 | ||
ac58e20f LW |
304 | origargv = argv; |
305 | origargc = argc; | |
a0d0e21e | 306 | #ifndef VMS /* VMS doesn't have environ array */ |
fe14fcc3 | 307 | origenviron = environ; |
a0d0e21e | 308 | #endif |
ab821d7f | 309 | e_tmpname = Nullch; |
a0d0e21e LW |
310 | |
311 | if (do_undump) { | |
312 | ||
313 | /* Come here if running an undumped a.out. */ | |
314 | ||
315 | origfilename = savepv(argv[0]); | |
316 | do_undump = FALSE; | |
317 | cxstack_ix = -1; /* start label stack again */ | |
748a9306 | 318 | init_ids(); |
a0d0e21e LW |
319 | init_postdump_symbols(argc,argv,env); |
320 | return 0; | |
321 | } | |
322 | ||
323 | if (main_root) | |
324 | op_free(main_root); | |
325 | main_root = 0; | |
79072805 | 326 | |
a5f75d66 | 327 | switch (Sigsetjmp(top_env,1)) { |
79072805 | 328 | case 1: |
748a9306 | 329 | #ifdef VMS |
79072805 | 330 | statusvalue = 255; |
748a9306 LW |
331 | #else |
332 | statusvalue = 1; | |
333 | #endif | |
79072805 | 334 | case 2: |
8990e307 LW |
335 | curstash = defstash; |
336 | if (endav) | |
337 | calllist(endav); | |
79072805 LW |
338 | return(statusvalue); /* my_exit() was called */ |
339 | case 3: | |
340 | fprintf(stderr, "panic: top_env\n"); | |
8990e307 | 341 | return 1; |
79072805 LW |
342 | } |
343 | ||
79072805 LW |
344 | sv_setpvn(linestr,"",0); |
345 | sv = newSVpv("",0); /* first used for -I flags */ | |
8990e307 | 346 | SAVEFREESV(sv); |
79072805 | 347 | init_main_stash(); |
33b78306 | 348 | for (argc--,argv++; argc > 0; argc--,argv++) { |
8d063cd8 LW |
349 | if (argv[0][0] != '-' || !argv[0][1]) |
350 | break; | |
13281fa4 LW |
351 | #ifdef DOSUID |
352 | if (*validarg) | |
353 | validarg = " PHOOEY "; | |
354 | else | |
355 | validarg = argv[0]; | |
356 | #endif | |
357 | s = argv[0]+1; | |
8d063cd8 | 358 | reswitch: |
13281fa4 | 359 | switch (*s) { |
27e2fb84 | 360 | case '0': |
2304df62 | 361 | case 'F': |
378cc40b | 362 | case 'a': |
33b78306 | 363 | case 'c': |
a687059c | 364 | case 'd': |
8d063cd8 | 365 | case 'D': |
4633a7c4 | 366 | case 'h': |
33b78306 | 367 | case 'i': |
fe14fcc3 | 368 | case 'l': |
1a30305b | 369 | case 'M': |
370 | case 'm': | |
33b78306 LW |
371 | case 'n': |
372 | case 'p': | |
79072805 | 373 | case 's': |
463ee0b2 | 374 | case 'T': |
33b78306 LW |
375 | case 'u': |
376 | case 'U': | |
377 | case 'v': | |
378 | case 'w': | |
379 | if (s = moreswitches(s)) | |
380 | goto reswitch; | |
8d063cd8 | 381 | break; |
33b78306 | 382 | |
8d063cd8 | 383 | case 'e': |
a687059c | 384 | if (euid != uid || egid != gid) |
463ee0b2 | 385 | croak("No -e allowed in setuid scripts"); |
8d063cd8 | 386 | if (!e_fp) { |
a0d0e21e | 387 | e_tmpname = savepv(TMPPATH); |
a687059c | 388 | (void)mktemp(e_tmpname); |
83025b21 | 389 | if (!*e_tmpname) |
463ee0b2 | 390 | croak("Can't mktemp()"); |
8d063cd8 | 391 | e_fp = fopen(e_tmpname,"w"); |
33b78306 | 392 | if (!e_fp) |
463ee0b2 | 393 | croak("Cannot open temporary file"); |
8d063cd8 | 394 | } |
33b78306 | 395 | if (argv[1]) { |
8d063cd8 | 396 | fputs(argv[1],e_fp); |
33b78306 LW |
397 | argc--,argv++; |
398 | } | |
a687059c | 399 | (void)putc('\n', e_fp); |
8d063cd8 LW |
400 | break; |
401 | case 'I': | |
463ee0b2 | 402 | taint_not("-I"); |
79072805 LW |
403 | sv_catpv(sv,"-"); |
404 | sv_catpv(sv,s); | |
405 | sv_catpv(sv," "); | |
a687059c | 406 | if (*++s) { |
a0d0e21e | 407 | av_push(GvAVn(incgv),newSVpv(s,0)); |
378cc40b | 408 | } |
33b78306 | 409 | else if (argv[1]) { |
a0d0e21e | 410 | av_push(GvAVn(incgv),newSVpv(argv[1],0)); |
79072805 | 411 | sv_catpv(sv,argv[1]); |
8d063cd8 | 412 | argc--,argv++; |
79072805 | 413 | sv_catpv(sv," "); |
8d063cd8 LW |
414 | } |
415 | break; | |
8d063cd8 | 416 | case 'P': |
463ee0b2 | 417 | taint_not("-P"); |
8d063cd8 | 418 | preprocess = TRUE; |
13281fa4 | 419 | s++; |
8d063cd8 | 420 | goto reswitch; |
378cc40b | 421 | case 'S': |
463ee0b2 | 422 | taint_not("-S"); |
378cc40b | 423 | dosearch = TRUE; |
13281fa4 | 424 | s++; |
378cc40b | 425 | goto reswitch; |
1a30305b | 426 | case 'V': |
427 | if (!preambleav) | |
428 | preambleav = newAV(); | |
429 | av_push(preambleav, newSVpv("use Config qw(myconfig config_vars)",0)); | |
430 | if (*++s != ':') { | |
6e72f9df | 431 | Sv = newSVpv("print myconfig();",0); |
432 | #ifdef VMS | |
433 | sv_catpv(Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\","); | |
434 | #else | |
435 | sv_catpv(Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\","); | |
436 | #endif | |
437 | #if defined(DEBUGGING) || defined(NOEMBED) || defined(MULTIPLICITY) | |
438 | strcpy(buf,"\" Compile-time options:"); | |
439 | # ifdef DEBUGGING | |
440 | strcat(buf," DEBUGGING"); | |
441 | # endif | |
442 | # ifdef NOEMBED | |
443 | strcat(buf," NOEMBED"); | |
444 | # endif | |
445 | # ifdef MULTIPLICITY | |
446 | strcat(buf," MULTIPLICITY"); | |
447 | # endif | |
448 | strcat(buf,"\\n\","); | |
449 | sv_catpv(Sv,buf); | |
450 | #endif | |
451 | #if defined(LOCAL_PATCH_COUNT) | |
452 | if (LOCAL_PATCH_COUNT > 0) | |
453 | { int i; | |
454 | sv_catpv(Sv,"print \" Locally applied patches:\\n\","); | |
455 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { | |
456 | if (localpatches[i]) { | |
457 | sprintf(buf,"\" \\t%s\\n\",",localpatches[i]); | |
458 | sv_catpv(Sv,buf); | |
459 | } | |
460 | } | |
461 | } | |
462 | #endif | |
463 | sprintf(buf,"\" Built under %s\\n\",",OSNAME); | |
464 | sv_catpv(Sv,buf); | |
465 | #ifdef __DATE__ | |
466 | # ifdef __TIME__ | |
467 | sprintf(buf,"\" Compiled at %s %s\\n\"",__DATE__,__TIME__); | |
468 | # else | |
469 | sprintf(buf,"\" Compiled on %s\\n\"",__DATE__); | |
470 | # endif | |
471 | sv_catpv(Sv,buf); | |
472 | #endif | |
473 | sv_catpv(Sv,"; $\"=\"\\n \"; print \" \\@INC:\\n @INC\\n\""); | |
1a30305b | 474 | } |
475 | else { | |
476 | Sv = newSVpv("config_vars(qw(",0); | |
477 | sv_catpv(Sv, ++s); | |
478 | sv_catpv(Sv, "))"); | |
479 | s += strlen(s); | |
480 | } | |
481 | av_push(preambleav, Sv); | |
c07a80fd | 482 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
1a30305b | 483 | goto reswitch; |
33b78306 LW |
484 | case 'x': |
485 | doextract = TRUE; | |
13281fa4 | 486 | s++; |
33b78306 | 487 | if (*s) |
a0d0e21e | 488 | cddir = savepv(s); |
33b78306 | 489 | break; |
8d063cd8 LW |
490 | case '-': |
491 | argc--,argv++; | |
492 | goto switch_end; | |
493 | case 0: | |
494 | break; | |
495 | default: | |
463ee0b2 | 496 | croak("Unrecognized switch: -%s",s); |
8d063cd8 LW |
497 | } |
498 | } | |
499 | switch_end: | |
1a30305b | 500 | if (!scriptname) |
501 | scriptname = argv[0]; | |
8d063cd8 | 502 | if (e_fp) { |
a5f75d66 | 503 | if (Fflush(e_fp) || ferror(e_fp) || fclose(e_fp)) |
2304df62 | 504 | croak("Can't write to temp file for -e: %s", Strerror(errno)); |
ab821d7f | 505 | e_fp = Nullfp; |
8d063cd8 | 506 | argc++,argv--; |
45d8adaa | 507 | scriptname = e_tmpname; |
8d063cd8 | 508 | } |
79072805 LW |
509 | else if (scriptname == Nullch) { |
510 | #ifdef MSDOS | |
511 | if ( isatty(fileno(stdin)) ) | |
512 | moreswitches("v"); | |
fe14fcc3 | 513 | #endif |
79072805 LW |
514 | scriptname = "-"; |
515 | } | |
fe14fcc3 | 516 | |
79072805 | 517 | init_perllib(); |
8d063cd8 | 518 | |
79072805 | 519 | open_script(scriptname,dosearch,sv); |
8d063cd8 | 520 | |
96436eeb | 521 | validate_suid(validarg, scriptname); |
378cc40b | 522 | |
79072805 LW |
523 | if (doextract) |
524 | find_beginning(); | |
525 | ||
748a9306 LW |
526 | compcv = (CV*)NEWSV(1104,0); |
527 | sv_upgrade((SV *)compcv, SVt_PVCV); | |
528 | ||
6e72f9df | 529 | comppad = newAV(); |
79072805 LW |
530 | av_push(comppad, Nullsv); |
531 | curpad = AvARRAY(comppad); | |
6e72f9df | 532 | comppad_name = newAV(); |
8990e307 LW |
533 | comppad_name_fill = 0; |
534 | min_intro_pending = 0; | |
79072805 LW |
535 | padix = 0; |
536 | ||
748a9306 LW |
537 | comppadlist = newAV(); |
538 | AvREAL_off(comppadlist); | |
8e07c86e AD |
539 | av_store(comppadlist, 0, (SV*)comppad_name); |
540 | av_store(comppadlist, 1, (SV*)comppad); | |
748a9306 LW |
541 | CvPADLIST(compcv) = comppadlist; |
542 | ||
6e72f9df | 543 | boot_core_UNIVERSAL(); |
a0d0e21e LW |
544 | if (xsinit) |
545 | (*xsinit)(); /* in case linked C routines want magical variables */ | |
748a9306 LW |
546 | #ifdef VMS |
547 | init_os_extras(); | |
548 | #endif | |
93a17b20 | 549 | |
93a17b20 | 550 | init_predump_symbols(); |
8990e307 LW |
551 | if (!do_undump) |
552 | init_postdump_symbols(argc,argv,env); | |
93a17b20 | 553 | |
79072805 LW |
554 | init_lexer(); |
555 | ||
556 | /* now parse the script */ | |
557 | ||
558 | error_count = 0; | |
559 | if (yyparse() || error_count) { | |
560 | if (minus_c) | |
463ee0b2 | 561 | croak("%s had compilation errors.\n", origfilename); |
79072805 | 562 | else { |
463ee0b2 | 563 | croak("Execution of %s aborted due to compilation errors.\n", |
79072805 | 564 | origfilename); |
378cc40b | 565 | } |
79072805 LW |
566 | } |
567 | curcop->cop_line = 0; | |
568 | curstash = defstash; | |
569 | preprocess = FALSE; | |
ab821d7f | 570 | if (e_tmpname) { |
79072805 | 571 | (void)UNLINK(e_tmpname); |
ab821d7f | 572 | Safefree(e_tmpname); |
573 | e_tmpname = Nullch; | |
378cc40b | 574 | } |
a687059c | 575 | |
93a17b20 | 576 | /* now that script is parsed, we can modify record separator */ |
c07a80fd | 577 | SvREFCNT_dec(rs); |
578 | rs = SvREFCNT_inc(nrs); | |
579 | sv_setsv(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), rs); | |
45d8adaa | 580 | |
79072805 LW |
581 | if (do_undump) |
582 | my_unexec(); | |
583 | ||
8990e307 LW |
584 | if (dowarn) |
585 | gv_check(defstash); | |
586 | ||
a0d0e21e LW |
587 | LEAVE; |
588 | FREETMPS; | |
c07a80fd | 589 | |
590 | #ifdef DEBUGGING_MSTATS | |
591 | if ((s=getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) | |
592 | dump_mstats("after compilation:"); | |
593 | #endif | |
594 | ||
a0d0e21e LW |
595 | ENTER; |
596 | restartop = 0; | |
79072805 LW |
597 | return 0; |
598 | } | |
599 | ||
600 | int | |
601 | perl_run(sv_interp) | |
93a17b20 | 602 | PerlInterpreter *sv_interp; |
79072805 LW |
603 | { |
604 | if (!(curinterp = sv_interp)) | |
605 | return 255; | |
a5f75d66 | 606 | switch (Sigsetjmp(top_env,1)) { |
79072805 LW |
607 | case 1: |
608 | cxstack_ix = -1; /* start context stack again */ | |
609 | break; | |
610 | case 2: | |
611 | curstash = defstash; | |
93a17b20 LW |
612 | if (endav) |
613 | calllist(endav); | |
a0d0e21e | 614 | FREETMPS; |
c07a80fd | 615 | #ifdef DEBUGGING_MSTATS |
616 | if (getenv("PERL_DEBUG_MSTATS")) | |
617 | dump_mstats("after execution: "); | |
618 | #endif | |
93a17b20 | 619 | return(statusvalue); /* my_exit() was called */ |
79072805 LW |
620 | case 3: |
621 | if (!restartop) { | |
622 | fprintf(stderr, "panic: restartop\n"); | |
a0d0e21e | 623 | FREETMPS; |
8990e307 | 624 | return 1; |
83025b21 | 625 | } |
6e72f9df | 626 | if (curstack != mainstack) { |
79072805 | 627 | dSP; |
6e72f9df | 628 | SWITCHSTACK(curstack, mainstack); |
79072805 LW |
629 | } |
630 | break; | |
8d063cd8 | 631 | } |
79072805 | 632 | |
6e72f9df | 633 | DEBUG_r(fprintf(stderr, "%s $` $& $' support.\n", |
634 | sawampersand ? "Enabling" : "Omitting")); | |
635 | ||
79072805 LW |
636 | if (!restartop) { |
637 | DEBUG_x(dump_all()); | |
6e72f9df | 638 | DEBUG(fprintf(Perl_debug_log,"\nEXECUTING...\n\n")); |
79072805 LW |
639 | |
640 | if (minus_c) { | |
641 | fprintf(stderr,"%s syntax OK\n", origfilename); | |
642 | my_exit(0); | |
643 | } | |
a0d0e21e LW |
644 | if (perldb && DBsingle) |
645 | sv_setiv(DBsingle, 1); | |
45d8adaa | 646 | } |
79072805 LW |
647 | |
648 | /* do it */ | |
649 | ||
650 | if (restartop) { | |
651 | op = restartop; | |
652 | restartop = 0; | |
ab821d7f | 653 | runops(); |
79072805 LW |
654 | } |
655 | else if (main_start) { | |
656 | op = main_start; | |
ab821d7f | 657 | runops(); |
79072805 | 658 | } |
79072805 LW |
659 | |
660 | my_exit(0); | |
a0d0e21e | 661 | return 0; |
79072805 LW |
662 | } |
663 | ||
664 | void | |
665 | my_exit(status) | |
748a9306 | 666 | U32 status; |
79072805 | 667 | { |
a0d0e21e LW |
668 | register CONTEXT *cx; |
669 | I32 gimme; | |
670 | SV **newsp; | |
671 | ||
748a9306 | 672 | statusvalue = FIXSTATUS(status); |
a0d0e21e LW |
673 | if (cxstack_ix >= 0) { |
674 | if (cxstack_ix > 0) | |
675 | dounwind(0); | |
676 | POPBLOCK(cx,curpm); | |
677 | LEAVE; | |
678 | } | |
a5f75d66 | 679 | Siglongjmp(top_env, 2); |
79072805 LW |
680 | } |
681 | ||
a0d0e21e LW |
682 | SV* |
683 | perl_get_sv(name, create) | |
684 | char* name; | |
685 | I32 create; | |
686 | { | |
687 | GV* gv = gv_fetchpv(name, create, SVt_PV); | |
688 | if (gv) | |
689 | return GvSV(gv); | |
690 | return Nullsv; | |
691 | } | |
692 | ||
693 | AV* | |
694 | perl_get_av(name, create) | |
695 | char* name; | |
696 | I32 create; | |
697 | { | |
698 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); | |
699 | if (create) | |
700 | return GvAVn(gv); | |
701 | if (gv) | |
702 | return GvAV(gv); | |
703 | return Nullav; | |
704 | } | |
705 | ||
706 | HV* | |
707 | perl_get_hv(name, create) | |
708 | char* name; | |
709 | I32 create; | |
710 | { | |
711 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); | |
712 | if (create) | |
713 | return GvHVn(gv); | |
714 | if (gv) | |
715 | return GvHV(gv); | |
716 | return Nullhv; | |
717 | } | |
718 | ||
719 | CV* | |
720 | perl_get_cv(name, create) | |
721 | char* name; | |
722 | I32 create; | |
723 | { | |
724 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); | |
725 | if (create && !GvCV(gv)) | |
726 | return newSUB(start_subparse(), | |
727 | newSVOP(OP_CONST, 0, newSVpv(name,0)), | |
4633a7c4 | 728 | Nullop, |
a0d0e21e LW |
729 | Nullop); |
730 | if (gv) | |
731 | return GvCV(gv); | |
732 | return Nullcv; | |
733 | } | |
734 | ||
79072805 LW |
735 | /* Be sure to refetch the stack pointer after calling these routines. */ |
736 | ||
a0d0e21e LW |
737 | I32 |
738 | perl_call_argv(subname, flags, argv) | |
8990e307 | 739 | char *subname; |
a0d0e21e LW |
740 | I32 flags; /* See G_* flags in cop.h */ |
741 | register char **argv; /* null terminated arg list */ | |
8990e307 | 742 | { |
a0d0e21e | 743 | dSP; |
8990e307 | 744 | |
a0d0e21e LW |
745 | PUSHMARK(sp); |
746 | if (argv) { | |
8990e307 | 747 | while (*argv) { |
a0d0e21e | 748 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 LW |
749 | argv++; |
750 | } | |
a0d0e21e | 751 | PUTBACK; |
8990e307 | 752 | } |
a0d0e21e | 753 | return perl_call_pv(subname, flags); |
8990e307 LW |
754 | } |
755 | ||
a0d0e21e LW |
756 | I32 |
757 | perl_call_pv(subname, flags) | |
758 | char *subname; /* name of the subroutine */ | |
759 | I32 flags; /* See G_* flags in cop.h */ | |
760 | { | |
761 | return perl_call_sv((SV*)perl_get_cv(subname, TRUE), flags); | |
762 | } | |
763 | ||
764 | I32 | |
765 | perl_call_method(methname, flags) | |
766 | char *methname; /* name of the subroutine */ | |
767 | I32 flags; /* See G_* flags in cop.h */ | |
768 | { | |
769 | dSP; | |
770 | OP myop; | |
771 | if (!op) | |
772 | op = &myop; | |
773 | XPUSHs(sv_2mortal(newSVpv(methname,0))); | |
774 | PUTBACK; | |
775 | pp_method(); | |
776 | return perl_call_sv(*stack_sp--, flags); | |
777 | } | |
778 | ||
779 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
780 | I32 | |
781 | perl_call_sv(sv, flags) | |
782 | SV* sv; | |
783 | I32 flags; /* See G_* flags in cop.h */ | |
784 | { | |
785 | LOGOP myop; /* fake syntax tree node */ | |
786 | SV** sp = stack_sp; | |
787 | I32 oldmark = TOPMARK; | |
788 | I32 retval; | |
a5f75d66 | 789 | Sigjmp_buf oldtop; |
a0d0e21e | 790 | I32 oldscope; |
6e72f9df | 791 | static CV *DBcv; |
a0d0e21e LW |
792 | |
793 | if (flags & G_DISCARD) { | |
794 | ENTER; | |
795 | SAVETMPS; | |
796 | } | |
797 | ||
798 | SAVESPTR(op); | |
799 | op = (OP*)&myop; | |
800 | Zero(op, 1, LOGOP); | |
801 | EXTEND(stack_sp, 1); | |
802 | *++stack_sp = sv; | |
803 | oldscope = scopestack_ix; | |
804 | ||
805 | if (!(flags & G_NOARGS)) | |
806 | myop.op_flags = OPf_STACKED; | |
807 | myop.op_next = Nullop; | |
808 | myop.op_flags |= OPf_KNOW; | |
809 | if (flags & G_ARRAY) | |
810 | myop.op_flags |= OPf_LIST; | |
811 | ||
6e72f9df | 812 | if (perldb && curstash != debstash |
813 | && (DBcv || (DBcv = GvCV(DBsub)))) /* to handle first BEGIN of -d */ | |
814 | op->op_private |= OPpENTERSUB_DB; | |
815 | ||
a0d0e21e | 816 | if (flags & G_EVAL) { |
a5f75d66 | 817 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
a0d0e21e LW |
818 | |
819 | cLOGOP->op_other = op; | |
820 | markstack_ptr--; | |
4633a7c4 LW |
821 | /* we're trying to emulate pp_entertry() here */ |
822 | { | |
823 | register CONTEXT *cx; | |
824 | I32 gimme = GIMME; | |
825 | ||
826 | ENTER; | |
827 | SAVETMPS; | |
828 | ||
829 | push_return(op->op_next); | |
830 | PUSHBLOCK(cx, CXt_EVAL, stack_sp); | |
831 | PUSHEVAL(cx, 0, 0); | |
832 | eval_root = op; /* Only needed so that goto works right. */ | |
833 | ||
834 | in_eval = 1; | |
835 | if (flags & G_KEEPERR) | |
836 | in_eval |= 4; | |
837 | else | |
838 | sv_setpv(GvSV(errgv),""); | |
839 | } | |
a0d0e21e LW |
840 | markstack_ptr++; |
841 | ||
842 | restart: | |
a5f75d66 | 843 | switch (Sigsetjmp(top_env,1)) { |
a0d0e21e LW |
844 | case 0: |
845 | break; | |
846 | case 1: | |
748a9306 | 847 | #ifdef VMS |
a0d0e21e | 848 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 LW |
849 | #else |
850 | statusvalue = 1; | |
851 | #endif | |
a0d0e21e LW |
852 | /* FALL THROUGH */ |
853 | case 2: | |
854 | /* my_exit() was called */ | |
855 | curstash = defstash; | |
856 | FREETMPS; | |
a5f75d66 | 857 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
858 | if (statusvalue) |
859 | croak("Callback called exit"); | |
860 | my_exit(statusvalue); | |
861 | /* NOTREACHED */ | |
862 | case 3: | |
863 | if (restartop) { | |
864 | op = restartop; | |
865 | restartop = 0; | |
866 | goto restart; | |
867 | } | |
868 | stack_sp = stack_base + oldmark; | |
869 | if (flags & G_ARRAY) | |
870 | retval = 0; | |
871 | else { | |
872 | retval = 1; | |
873 | *++stack_sp = &sv_undef; | |
874 | } | |
875 | goto cleanup; | |
876 | } | |
877 | } | |
878 | ||
879 | if (op == (OP*)&myop) | |
880 | op = pp_entersub(); | |
881 | if (op) | |
ab821d7f | 882 | runops(); |
a0d0e21e | 883 | retval = stack_sp - (stack_base + oldmark); |
4633a7c4 LW |
884 | if ((flags & G_EVAL) && !(flags & G_KEEPERR)) |
885 | sv_setpv(GvSV(errgv),""); | |
a0d0e21e LW |
886 | |
887 | cleanup: | |
888 | if (flags & G_EVAL) { | |
889 | if (scopestack_ix > oldscope) { | |
a0a2876f LW |
890 | SV **newsp; |
891 | PMOP *newpm; | |
892 | I32 gimme; | |
893 | register CONTEXT *cx; | |
894 | I32 optype; | |
895 | ||
896 | POPBLOCK(cx,newpm); | |
897 | POPEVAL(cx); | |
898 | pop_return(); | |
899 | curpm = newpm; | |
900 | LEAVE; | |
a0d0e21e | 901 | } |
a5f75d66 | 902 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
903 | } |
904 | if (flags & G_DISCARD) { | |
905 | stack_sp = stack_base + oldmark; | |
906 | retval = 0; | |
907 | FREETMPS; | |
908 | LEAVE; | |
909 | } | |
910 | return retval; | |
911 | } | |
912 | ||
6e72f9df | 913 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 | 914 | |
a0d0e21e | 915 | I32 |
4633a7c4 | 916 | perl_eval_sv(sv, flags) |
8990e307 | 917 | SV* sv; |
4633a7c4 | 918 | I32 flags; /* See G_* flags in cop.h */ |
a0d0e21e LW |
919 | { |
920 | UNOP myop; /* fake syntax tree node */ | |
4633a7c4 LW |
921 | SV** sp = stack_sp; |
922 | I32 oldmark = sp - stack_base; | |
923 | I32 retval; | |
a5f75d66 | 924 | Sigjmp_buf oldtop; |
4633a7c4 | 925 | I32 oldscope; |
79072805 | 926 | |
4633a7c4 LW |
927 | if (flags & G_DISCARD) { |
928 | ENTER; | |
929 | SAVETMPS; | |
930 | } | |
931 | ||
79072805 | 932 | SAVESPTR(op); |
79072805 | 933 | op = (OP*)&myop; |
a0d0e21e | 934 | Zero(op, 1, UNOP); |
4633a7c4 LW |
935 | EXTEND(stack_sp, 1); |
936 | *++stack_sp = sv; | |
937 | oldscope = scopestack_ix; | |
79072805 | 938 | |
4633a7c4 LW |
939 | if (!(flags & G_NOARGS)) |
940 | myop.op_flags = OPf_STACKED; | |
79072805 | 941 | myop.op_next = Nullop; |
6e72f9df | 942 | myop.op_type = OP_ENTEREVAL; |
4633a7c4 | 943 | myop.op_flags |= OPf_KNOW; |
6e72f9df | 944 | if (flags & G_KEEPERR) |
945 | myop.op_flags |= OPf_SPECIAL; | |
4633a7c4 | 946 | if (flags & G_ARRAY) |
6e72f9df | 947 | myop.op_flags |= OPf_LIST; |
79072805 | 948 | |
a5f75d66 | 949 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
4633a7c4 LW |
950 | |
951 | restart: | |
a5f75d66 | 952 | switch (Sigsetjmp(top_env,1)) { |
4633a7c4 LW |
953 | case 0: |
954 | break; | |
955 | case 1: | |
956 | #ifdef VMS | |
957 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ | |
958 | #else | |
959 | statusvalue = 1; | |
960 | #endif | |
961 | /* FALL THROUGH */ | |
962 | case 2: | |
963 | /* my_exit() was called */ | |
964 | curstash = defstash; | |
965 | FREETMPS; | |
a5f75d66 | 966 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
4633a7c4 LW |
967 | if (statusvalue) |
968 | croak("Callback called exit"); | |
969 | my_exit(statusvalue); | |
970 | /* NOTREACHED */ | |
971 | case 3: | |
972 | if (restartop) { | |
973 | op = restartop; | |
974 | restartop = 0; | |
975 | goto restart; | |
976 | } | |
977 | stack_sp = stack_base + oldmark; | |
978 | if (flags & G_ARRAY) | |
979 | retval = 0; | |
980 | else { | |
981 | retval = 1; | |
982 | *++stack_sp = &sv_undef; | |
983 | } | |
984 | goto cleanup; | |
985 | } | |
986 | ||
987 | if (op == (OP*)&myop) | |
988 | op = pp_entereval(); | |
989 | if (op) | |
ab821d7f | 990 | runops(); |
4633a7c4 | 991 | retval = stack_sp - (stack_base + oldmark); |
6e72f9df | 992 | if (!(flags & G_KEEPERR)) |
4633a7c4 LW |
993 | sv_setpv(GvSV(errgv),""); |
994 | ||
995 | cleanup: | |
a5f75d66 | 996 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
4633a7c4 LW |
997 | if (flags & G_DISCARD) { |
998 | stack_sp = stack_base + oldmark; | |
999 | retval = 0; | |
1000 | FREETMPS; | |
1001 | LEAVE; | |
1002 | } | |
1003 | return retval; | |
1004 | } | |
1005 | ||
1006 | /* Require a module. */ | |
1007 | ||
1008 | void | |
1009 | perl_require_pv(pv) | |
1010 | char* pv; | |
1011 | { | |
1012 | SV* sv = sv_newmortal(); | |
1013 | sv_setpv(sv, "require '"); | |
1014 | sv_catpv(sv, pv); | |
1015 | sv_catpv(sv, "'"); | |
1016 | perl_eval_sv(sv, G_DISCARD); | |
79072805 LW |
1017 | } |
1018 | ||
79072805 | 1019 | void |
79072805 LW |
1020 | magicname(sym,name,namlen) |
1021 | char *sym; | |
1022 | char *name; | |
1023 | I32 namlen; | |
1024 | { | |
1025 | register GV *gv; | |
1026 | ||
85e6fe83 | 1027 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 LW |
1028 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
1029 | } | |
1030 | ||
748a9306 LW |
1031 | #if defined(DOSISH) |
1032 | # define PERLLIB_SEP ';' | |
79072805 | 1033 | #else |
232e078e AD |
1034 | # if defined(VMS) |
1035 | # define PERLLIB_SEP '|' | |
1036 | # else | |
748a9306 | 1037 | # define PERLLIB_SEP ':' |
232e078e | 1038 | # endif |
79072805 LW |
1039 | #endif |
1040 | ||
1041 | static void | |
1042 | incpush(p) | |
1043 | char *p; | |
1044 | { | |
1045 | char *s; | |
1046 | ||
1047 | if (!p) | |
1048 | return; | |
1049 | ||
1050 | /* Break at all separators */ | |
1051 | while (*p) { | |
1052 | /* First, skip any consecutive separators */ | |
1053 | while ( *p == PERLLIB_SEP ) { | |
1054 | /* Uncomment the next line for PATH semantics */ | |
a0d0e21e | 1055 | /* av_push(GvAVn(incgv), newSVpv(".", 1)); */ |
79072805 LW |
1056 | p++; |
1057 | } | |
93a17b20 | 1058 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { |
a0d0e21e | 1059 | av_push(GvAVn(incgv), newSVpv(p, (STRLEN)(s - p))); |
79072805 LW |
1060 | p = s + 1; |
1061 | } else { | |
a0d0e21e | 1062 | av_push(GvAVn(incgv), newSVpv(p, 0)); |
79072805 LW |
1063 | break; |
1064 | } | |
1065 | } | |
1066 | } | |
1067 | ||
ab821d7f | 1068 | static void |
1a30305b | 1069 | usage(name) /* XXX move this out into a module ? */ |
4633a7c4 LW |
1070 | char *name; |
1071 | { | |
ab821d7f | 1072 | /* This message really ought to be max 23 lines. |
1073 | * Removed -h because the user already knows that opton. Others? */ | |
1074 | printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name); | |
4633a7c4 | 1075 | printf("\n -0[octal] specify record separator (\\0, if no argument)"); |
ab821d7f | 1076 | printf("\n -a autosplit mode with -n or -p (splits $_ into @F)"); |
4633a7c4 | 1077 | printf("\n -c check syntax only (runs BEGIN and END blocks)"); |
1a30305b | 1078 | printf("\n -d[:debugger] run scripts under debugger"); |
4633a7c4 | 1079 | printf("\n -D[number/list] set debugging flags (argument is a bit mask or flags)"); |
ab821d7f | 1080 | printf("\n -e 'command' one line of script. Several -e's allowed. Omit [programfile]."); |
1081 | printf("\n -F/pattern/ split() pattern for autosplit (-a). The //'s are optional."); | |
4633a7c4 | 1082 | printf("\n -i[extension] edit <> files in place (make backup if extension supplied)"); |
ab821d7f | 1083 | printf("\n -Idirectory specify @INC/#include directory (may be used more then once)"); |
4633a7c4 | 1084 | printf("\n -l[octal] enable line ending processing, specifies line teminator"); |
ab821d7f | 1085 | printf("\n -[mM][-]module.. executes `use/no module...' before executing your script."); |
4633a7c4 LW |
1086 | printf("\n -n assume 'while (<>) { ... }' loop arround your script"); |
1087 | printf("\n -p assume loop like -n but print line also like sed"); | |
1088 | printf("\n -P run script through C preprocessor before compilation"); | |
4633a7c4 LW |
1089 | printf("\n -s enable some switch parsing for switches after script name"); |
1090 | printf("\n -S look for the script using PATH environment variable"); | |
1091 | printf("\n -T turn on tainting checks"); | |
1092 | printf("\n -u dump core after parsing script"); | |
1093 | printf("\n -U allow unsafe operations"); | |
1094 | printf("\n -v print version number and patchlevel of perl"); | |
1a30305b | 1095 | printf("\n -V[:variable] print perl configuration information"); |
ab821d7f | 1096 | printf("\n -w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT."); |
4633a7c4 LW |
1097 | printf("\n -x[directory] strip off text before #!perl line and perhaps cd to directory\n"); |
1098 | } | |
1099 | ||
79072805 LW |
1100 | /* This routine handles any switches that can be given during run */ |
1101 | ||
1102 | char * | |
1103 | moreswitches(s) | |
1104 | char *s; | |
1105 | { | |
1106 | I32 numlen; | |
c07a80fd | 1107 | U32 rschar; |
79072805 LW |
1108 | |
1109 | switch (*s) { | |
1110 | case '0': | |
c07a80fd | 1111 | rschar = scan_oct(s, 4, &numlen); |
1112 | SvREFCNT_dec(nrs); | |
1113 | if (rschar & ~((U8)~0)) | |
1114 | nrs = &sv_undef; | |
1115 | else if (!rschar && numlen >= 2) | |
1116 | nrs = newSVpv("", 0); | |
1117 | else { | |
1118 | char ch = rschar; | |
1119 | nrs = newSVpv(&ch, 1); | |
79072805 LW |
1120 | } |
1121 | return s + numlen; | |
2304df62 AD |
1122 | case 'F': |
1123 | minus_F = TRUE; | |
a0d0e21e | 1124 | splitstr = savepv(s + 1); |
2304df62 AD |
1125 | s += strlen(s); |
1126 | return s; | |
79072805 LW |
1127 | case 'a': |
1128 | minus_a = TRUE; | |
1129 | s++; | |
1130 | return s; | |
1131 | case 'c': | |
1132 | minus_c = TRUE; | |
1133 | s++; | |
1134 | return s; | |
1135 | case 'd': | |
463ee0b2 | 1136 | taint_not("-d"); |
4633a7c4 | 1137 | s++; |
c07a80fd | 1138 | if (*s == ':' || *s == '=') { |
4633a7c4 LW |
1139 | sprintf(buf, "use Devel::%s;", ++s); |
1140 | s += strlen(s); | |
1141 | my_setenv("PERL5DB",buf); | |
1142 | } | |
a0d0e21e LW |
1143 | if (!perldb) { |
1144 | perldb = TRUE; | |
1145 | init_debugger(); | |
1146 | } | |
79072805 LW |
1147 | return s; |
1148 | case 'D': | |
1149 | #ifdef DEBUGGING | |
463ee0b2 | 1150 | taint_not("-D"); |
79072805 | 1151 | if (isALPHA(s[1])) { |
8990e307 | 1152 | static char debopts[] = "psltocPmfrxuLHXD"; |
79072805 LW |
1153 | char *d; |
1154 | ||
93a17b20 | 1155 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
79072805 LW |
1156 | debug |= 1 << (d - debopts); |
1157 | } | |
1158 | else { | |
1159 | debug = atoi(s+1); | |
1160 | for (s++; isDIGIT(*s); s++) ; | |
1161 | } | |
8990e307 | 1162 | debug |= 0x80000000; |
79072805 LW |
1163 | #else |
1164 | warn("Recompile perl with -DDEBUGGING to use -D switch\n"); | |
a0d0e21e | 1165 | for (s++; isALNUM(*s); s++) ; |
79072805 LW |
1166 | #endif |
1167 | /*SUPPRESS 530*/ | |
1168 | return s; | |
4633a7c4 LW |
1169 | case 'h': |
1170 | usage(origargv[0]); | |
1171 | exit(0); | |
79072805 LW |
1172 | case 'i': |
1173 | if (inplace) | |
1174 | Safefree(inplace); | |
a0d0e21e | 1175 | inplace = savepv(s+1); |
79072805 LW |
1176 | /*SUPPRESS 530*/ |
1177 | for (s = inplace; *s && !isSPACE(*s); s++) ; | |
1178 | *s = '\0'; | |
1179 | break; | |
1180 | case 'I': | |
463ee0b2 | 1181 | taint_not("-I"); |
79072805 | 1182 | if (*++s) { |
748a9306 LW |
1183 | char *e; |
1184 | for (e = s; *e && !isSPACE(*e); e++) ; | |
1185 | av_push(GvAVn(incgv),newSVpv(s,e-s)); | |
1186 | if (*e) | |
1187 | return e; | |
79072805 LW |
1188 | } |
1189 | else | |
463ee0b2 | 1190 | croak("No space allowed after -I"); |
79072805 LW |
1191 | break; |
1192 | case 'l': | |
1193 | minus_l = TRUE; | |
1194 | s++; | |
a0d0e21e LW |
1195 | if (ors) |
1196 | Safefree(ors); | |
79072805 | 1197 | if (isDIGIT(*s)) { |
a0d0e21e | 1198 | ors = savepv("\n"); |
79072805 LW |
1199 | orslen = 1; |
1200 | *ors = scan_oct(s, 3 + (*s == '0'), &numlen); | |
1201 | s += numlen; | |
1202 | } | |
1203 | else { | |
c07a80fd | 1204 | if (RsPARA(nrs)) { |
6e72f9df | 1205 | ors = "\n\n"; |
c07a80fd | 1206 | orslen = 2; |
1207 | } | |
1208 | else | |
1209 | ors = SvPV(nrs, orslen); | |
6e72f9df | 1210 | ors = savepvn(ors, orslen); |
79072805 LW |
1211 | } |
1212 | return s; | |
1a30305b | 1213 | case 'M': |
1214 | taint_not("-M"); /* XXX ? */ | |
1215 | /* FALL THROUGH */ | |
1216 | case 'm': | |
1217 | taint_not("-m"); /* XXX ? */ | |
1218 | if (*++s) { | |
a5f75d66 AD |
1219 | char *start; |
1220 | char *use = "use "; | |
1221 | /* -M-foo == 'no foo' */ | |
1222 | if (*s == '-') { use = "no "; ++s; } | |
1223 | Sv = newSVpv(use,0); | |
1224 | start = s; | |
1a30305b | 1225 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd | 1226 | while(isALNUM(*s) || *s==':') ++s; |
1227 | if (*s != '=') { | |
1228 | sv_catpv(Sv, start); | |
1229 | if (*(start-1) == 'm') { | |
1230 | if (*s != '\0') | |
1231 | croak("Can't use '%c' after -mname", *s); | |
1232 | sv_catpv( Sv, " ()"); | |
1233 | } | |
1234 | } else { | |
1235 | sv_catpvn(Sv, start, s-start); | |
a5f75d66 | 1236 | sv_catpv(Sv, " split(/,/,q{"); |
c07a80fd | 1237 | sv_catpv(Sv, ++s); |
a5f75d66 | 1238 | sv_catpv(Sv, "})"); |
c07a80fd | 1239 | } |
1a30305b | 1240 | s += strlen(s); |
c07a80fd | 1241 | if (preambleav == NULL) |
1242 | preambleav = newAV(); | |
1243 | av_push(preambleav, Sv); | |
1a30305b | 1244 | } |
1245 | else | |
1246 | croak("No space allowed after -%c", *(s-1)); | |
1247 | return s; | |
79072805 LW |
1248 | case 'n': |
1249 | minus_n = TRUE; | |
1250 | s++; | |
1251 | return s; | |
1252 | case 'p': | |
1253 | minus_p = TRUE; | |
1254 | s++; | |
1255 | return s; | |
1256 | case 's': | |
463ee0b2 | 1257 | taint_not("-s"); |
79072805 LW |
1258 | doswitches = TRUE; |
1259 | s++; | |
1260 | return s; | |
463ee0b2 LW |
1261 | case 'T': |
1262 | tainting = TRUE; | |
1263 | s++; | |
1264 | return s; | |
79072805 LW |
1265 | case 'u': |
1266 | do_undump = TRUE; | |
1267 | s++; | |
1268 | return s; | |
1269 | case 'U': | |
1270 | unsafe = TRUE; | |
1271 | s++; | |
1272 | return s; | |
1273 | case 'v': | |
a5f75d66 AD |
1274 | #if defined(SUBVERSION) && SUBVERSION > 0 |
1275 | printf("\nThis is perl, version 5.%03d_%02d", PATCHLEVEL, SUBVERSION); | |
1276 | #else | |
1277 | printf("\nThis is perl, version %s",patchlevel); | |
1278 | #endif | |
1a30305b | 1279 | |
1a30305b | 1280 | fputs("\n\nCopyright 1987-1996, Larry Wall\n",stdout); |
6e72f9df | 1281 | fputs("\n\t+ suidperl security patch", stdout); |
79072805 LW |
1282 | #ifdef MSDOS |
1283 | fputs("MS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n", | |
1284 | stdout); | |
4633a7c4 | 1285 | #endif |
79072805 | 1286 | #ifdef OS2 |
1a30305b | 1287 | fputs("OS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" |
6e72f9df | 1288 | "Version 5 port Copyright (c) 1994-1996, Andreas Kaiser, Ilya Zakharevich\n", stdout); |
79072805 | 1289 | #endif |
79072805 | 1290 | #ifdef atarist |
1a30305b | 1291 | fputs("atariST series port, ++jrb bammi@cadence.com\n", stdout); |
79072805 LW |
1292 | #endif |
1293 | fputs("\n\ | |
1294 | Perl may be copied only under the terms of either the Artistic License or the\n\ | |
1a30305b | 1295 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n",stdout); |
79072805 LW |
1296 | #ifdef MSDOS |
1297 | usage(origargv[0]); | |
1298 | #endif | |
1299 | exit(0); | |
1300 | case 'w': | |
1301 | dowarn = TRUE; | |
1302 | s++; | |
1303 | return s; | |
a0d0e21e | 1304 | case '*': |
79072805 LW |
1305 | case ' ': |
1306 | if (s[1] == '-') /* Additional switches on #! line. */ | |
1307 | return s+2; | |
1308 | break; | |
a0d0e21e | 1309 | case '-': |
79072805 LW |
1310 | case 0: |
1311 | case '\n': | |
1312 | case '\t': | |
1313 | break; | |
a0d0e21e LW |
1314 | case 'P': |
1315 | if (preprocess) | |
1316 | return s+1; | |
1317 | /* FALL THROUGH */ | |
79072805 | 1318 | default: |
a0d0e21e | 1319 | croak("Can't emulate -%.1s on #! line",s); |
79072805 LW |
1320 | } |
1321 | return Nullch; | |
1322 | } | |
1323 | ||
1324 | /* compliments of Tom Christiansen */ | |
1325 | ||
1326 | /* unexec() can be found in the Gnu emacs distribution */ | |
1327 | ||
1328 | void | |
1329 | my_unexec() | |
1330 | { | |
1331 | #ifdef UNEXEC | |
1332 | int status; | |
1333 | extern int etext; | |
1334 | ||
1335 | sprintf (buf, "%s.perldump", origfilename); | |
1336 | sprintf (tokenbuf, "%s/perl", BIN); | |
1337 | ||
1338 | status = unexec(buf, tokenbuf, &etext, sbrk(0), 0); | |
1339 | if (status) | |
1340 | fprintf(stderr, "unexec of %s into %s failed!\n", tokenbuf, buf); | |
a0d0e21e | 1341 | exit(status); |
79072805 | 1342 | #else |
a5f75d66 AD |
1343 | # ifdef VMS |
1344 | # include <lib$routines.h> | |
1345 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ | |
1346 | #else | |
79072805 LW |
1347 | ABORT(); /* for use with undump */ |
1348 | #endif | |
a5f75d66 | 1349 | #endif |
79072805 LW |
1350 | } |
1351 | ||
1352 | static void | |
1353 | init_main_stash() | |
1354 | { | |
463ee0b2 | 1355 | GV *gv; |
6e72f9df | 1356 | |
1357 | /* Note that strtab is a rather special HV. Assumptions are made | |
1358 | about not iterating on it, and not adding tie magic to it. | |
1359 | It is properly deallocated in perl_destruct() */ | |
1360 | strtab = newHV(); | |
1361 | HvSHAREKEYS_off(strtab); /* mandatory */ | |
1362 | Newz(506,((XPVHV*)SvANY(strtab))->xhv_array, | |
1363 | sizeof(HE*) * (((XPVHV*)SvANY(strtab))->xhv_max + 1), char); | |
1364 | ||
463ee0b2 | 1365 | curstash = defstash = newHV(); |
79072805 | 1366 | curstname = newSVpv("main",4); |
adbc6bb1 LW |
1367 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
1368 | SvREFCNT_dec(GvHV(gv)); | |
1369 | GvHV(gv) = (HV*)SvREFCNT_inc(defstash); | |
463ee0b2 | 1370 | SvREADONLY_on(gv); |
a0d0e21e | 1371 | HvNAME(defstash) = savepv("main"); |
85e6fe83 | 1372 | incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); |
a5f75d66 | 1373 | GvMULTI_on(incgv); |
a0d0e21e | 1374 | defgv = gv_fetchpv("_",TRUE, SVt_PVAV); |
4633a7c4 | 1375 | errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); |
a5f75d66 | 1376 | GvMULTI_on(errgv); |
8990e307 LW |
1377 | curstash = defstash; |
1378 | compiling.cop_stash = defstash; | |
adbc6bb1 | 1379 | debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); |
4633a7c4 LW |
1380 | /* We must init $/ before switches are processed. */ |
1381 | sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1); | |
79072805 LW |
1382 | } |
1383 | ||
a0d0e21e LW |
1384 | #ifdef CAN_PROTOTYPE |
1385 | static void | |
1386 | open_script(char *scriptname, bool dosearch, SV *sv) | |
1387 | #else | |
79072805 LW |
1388 | static void |
1389 | open_script(scriptname,dosearch,sv) | |
1390 | char *scriptname; | |
1391 | bool dosearch; | |
1392 | SV *sv; | |
a0d0e21e | 1393 | #endif |
79072805 LW |
1394 | { |
1395 | char *xfound = Nullch; | |
1396 | char *xfailed = Nullch; | |
1397 | register char *s; | |
1398 | I32 len; | |
a38d6535 LW |
1399 | int retval; |
1400 | #if defined(DOSISH) && !defined(OS2) && !defined(atarist) | |
1401 | #define SEARCH_EXTS ".bat", ".cmd", NULL | |
1402 | #endif | |
ab821d7f | 1403 | #ifdef VMS |
1404 | # define SEARCH_EXTS ".pl", ".com", NULL | |
1405 | #endif | |
a38d6535 LW |
1406 | /* additional extensions to try in each dir if scriptname not found */ |
1407 | #ifdef SEARCH_EXTS | |
1408 | char *ext[] = { SEARCH_EXTS }; | |
1409 | int extidx = (strchr(scriptname,'.')) ? -1 : 0; /* has ext already */ | |
1410 | #endif | |
79072805 | 1411 | |
c07a80fd | 1412 | #ifdef VMS |
6e72f9df | 1413 | if (dosearch) { |
1414 | int hasdir, idx = 0, deftypes = 1; | |
1415 | ||
1416 | hasdir = (strpbrk(scriptname,":[</") != Nullch) ; | |
1417 | /* The first time through, just add SEARCH_EXTS to whatever we | |
1418 | * already have, so we can check for default file types. */ | |
1419 | while (deftypes || (!hasdir && my_trnlnm("DCL$PATH",tokenbuf,idx++)) ) { | |
1420 | if (deftypes) { deftypes = 0; *tokenbuf = '\0'; } | |
c07a80fd | 1421 | strcat(tokenbuf,scriptname); |
1422 | #else /* !VMS */ | |
93a17b20 | 1423 | if (dosearch && !strchr(scriptname, '/') && (s = getenv("PATH"))) { |
79072805 LW |
1424 | |
1425 | bufend = s + strlen(s); | |
1426 | while (*s) { | |
1427 | #ifndef DOSISH | |
1428 | s = cpytill(tokenbuf,s,bufend,':',&len); | |
1429 | #else | |
1430 | #ifdef atarist | |
1431 | for (len = 0; *s && *s != ',' && *s != ';'; tokenbuf[len++] = *s++); | |
1432 | tokenbuf[len] = '\0'; | |
1433 | #else | |
1434 | for (len = 0; *s && *s != ';'; tokenbuf[len++] = *s++); | |
1435 | tokenbuf[len] = '\0'; | |
1436 | #endif | |
1437 | #endif | |
1438 | if (*s) | |
1439 | s++; | |
1440 | #ifndef DOSISH | |
1441 | if (len && tokenbuf[len-1] != '/') | |
1442 | #else | |
1443 | #ifdef atarist | |
1444 | if (len && ((tokenbuf[len-1] != '\\') && (tokenbuf[len-1] != '/'))) | |
1445 | #else | |
1446 | if (len && tokenbuf[len-1] != '\\') | |
1447 | #endif | |
1448 | #endif | |
1449 | (void)strcat(tokenbuf+len,"/"); | |
1450 | (void)strcat(tokenbuf+len,scriptname); | |
c07a80fd | 1451 | #endif /* !VMS */ |
a38d6535 LW |
1452 | |
1453 | #ifdef SEARCH_EXTS | |
1454 | len = strlen(tokenbuf); | |
1455 | if (extidx > 0) /* reset after previous loop */ | |
1456 | extidx = 0; | |
1457 | do { | |
1458 | #endif | |
6e72f9df | 1459 | DEBUG_p(fprintf(Perl_debug_log,"Looking for %s\n",tokenbuf)); |
a38d6535 LW |
1460 | retval = Stat(tokenbuf,&statbuf); |
1461 | #ifdef SEARCH_EXTS | |
1462 | } while ( retval < 0 /* not there */ | |
1463 | && extidx>=0 && ext[extidx] /* try an extension? */ | |
1464 | && strcpy(tokenbuf+len, ext[extidx++]) | |
1465 | ); | |
1466 | #endif | |
1467 | if (retval < 0) | |
79072805 LW |
1468 | continue; |
1469 | if (S_ISREG(statbuf.st_mode) | |
1470 | && cando(S_IRUSR,TRUE,&statbuf) && cando(S_IXUSR,TRUE,&statbuf)) { | |
1471 | xfound = tokenbuf; /* bingo! */ | |
1472 | break; | |
1473 | } | |
1474 | if (!xfailed) | |
a0d0e21e | 1475 | xfailed = savepv(tokenbuf); |
79072805 LW |
1476 | } |
1477 | if (!xfound) | |
463ee0b2 | 1478 | croak("Can't execute %s", xfailed ? xfailed : scriptname ); |
79072805 LW |
1479 | if (xfailed) |
1480 | Safefree(xfailed); | |
1481 | scriptname = xfound; | |
1482 | } | |
1483 | ||
96436eeb | 1484 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { |
1485 | char *s = scriptname + 8; | |
1486 | fdscript = atoi(s); | |
1487 | while (isDIGIT(*s)) | |
1488 | s++; | |
1489 | if (*s) | |
1490 | scriptname = s + 1; | |
1491 | } | |
1492 | else | |
1493 | fdscript = -1; | |
ab821d7f | 1494 | origfilename = savepv(e_tmpname ? "-e" : scriptname); |
79072805 LW |
1495 | curcop->cop_filegv = gv_fetchfile(origfilename); |
1496 | if (strEQ(origfilename,"-")) | |
1497 | scriptname = ""; | |
96436eeb | 1498 | if (fdscript >= 0) { |
1499 | rsfp = fdopen(fdscript,"r"); | |
1500 | #if defined(HAS_FCNTL) && defined(F_SETFD) | |
1501 | fcntl(fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ | |
1502 | #endif | |
1503 | } | |
1504 | else if (preprocess) { | |
79072805 LW |
1505 | char *cpp = CPPSTDIN; |
1506 | ||
1507 | if (strEQ(cpp,"cppstdin")) | |
1508 | sprintf(tokenbuf, "%s/%s", SCRIPTDIR, cpp); | |
1509 | else | |
1510 | sprintf(tokenbuf, "%s", cpp); | |
1511 | sv_catpv(sv,"-I"); | |
fed7345c | 1512 | sv_catpv(sv,PRIVLIB_EXP); |
79072805 LW |
1513 | #ifdef MSDOS |
1514 | (void)sprintf(buf, "\ | |
1515 | sed %s -e \"/^[^#]/b\" \ | |
1516 | -e \"/^#[ ]*include[ ]/b\" \ | |
1517 | -e \"/^#[ ]*define[ ]/b\" \ | |
1518 | -e \"/^#[ ]*if[ ]/b\" \ | |
1519 | -e \"/^#[ ]*ifdef[ ]/b\" \ | |
1520 | -e \"/^#[ ]*ifndef[ ]/b\" \ | |
1521 | -e \"/^#[ ]*else/b\" \ | |
1522 | -e \"/^#[ ]*elif[ ]/b\" \ | |
1523 | -e \"/^#[ ]*undef[ ]/b\" \ | |
1524 | -e \"/^#[ ]*endif/b\" \ | |
1525 | -e \"s/^#.*//\" \ | |
1526 | %s | %s -C %s %s", | |
1527 | (doextract ? "-e \"1,/^#/d\n\"" : ""), | |
1528 | #else | |
1529 | (void)sprintf(buf, "\ | |
1530 | %s %s -e '/^[^#]/b' \ | |
1531 | -e '/^#[ ]*include[ ]/b' \ | |
1532 | -e '/^#[ ]*define[ ]/b' \ | |
1533 | -e '/^#[ ]*if[ ]/b' \ | |
1534 | -e '/^#[ ]*ifdef[ ]/b' \ | |
1535 | -e '/^#[ ]*ifndef[ ]/b' \ | |
1536 | -e '/^#[ ]*else/b' \ | |
1537 | -e '/^#[ ]*elif[ ]/b' \ | |
1538 | -e '/^#[ ]*undef[ ]/b' \ | |
1539 | -e '/^#[ ]*endif/b' \ | |
1540 | -e 's/^[ ]*#.*//' \ | |
1541 | %s | %s -C %s %s", | |
1542 | #ifdef LOC_SED | |
1543 | LOC_SED, | |
1544 | #else | |
1545 | "sed", | |
1546 | #endif | |
1547 | (doextract ? "-e '1,/^#/d\n'" : ""), | |
1548 | #endif | |
463ee0b2 | 1549 | scriptname, tokenbuf, SvPV(sv, na), CPPMINUS); |
79072805 LW |
1550 | doextract = FALSE; |
1551 | #ifdef IAMSUID /* actually, this is caught earlier */ | |
1552 | if (euid != uid && !euid) { /* if running suidperl */ | |
1553 | #ifdef HAS_SETEUID | |
1554 | (void)seteuid(uid); /* musn't stay setuid root */ | |
1555 | #else | |
1556 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1557 | (void)setreuid((Uid_t)-1, uid); |
1558 | #else | |
1559 | #ifdef HAS_SETRESUID | |
1560 | (void)setresuid((Uid_t)-1, uid, (Uid_t)-1); | |
79072805 LW |
1561 | #else |
1562 | setuid(uid); | |
1563 | #endif | |
1564 | #endif | |
85e6fe83 | 1565 | #endif |
79072805 | 1566 | if (geteuid() != uid) |
463ee0b2 | 1567 | croak("Can't do seteuid!\n"); |
79072805 LW |
1568 | } |
1569 | #endif /* IAMSUID */ | |
1570 | rsfp = my_popen(buf,"r"); | |
1571 | } | |
1572 | else if (!*scriptname) { | |
463ee0b2 | 1573 | taint_not("program input from stdin"); |
79072805 LW |
1574 | rsfp = stdin; |
1575 | } | |
96436eeb | 1576 | else { |
79072805 | 1577 | rsfp = fopen(scriptname,"r"); |
96436eeb | 1578 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
1579 | fcntl(fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ | |
1580 | #endif | |
1581 | } | |
45d8adaa | 1582 | if ((FILE*)rsfp == Nullfp) { |
13281fa4 | 1583 | #ifdef DOSUID |
a687059c | 1584 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
a0d0e21e | 1585 | if (euid && Stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 && |
13281fa4 | 1586 | statbuf.st_mode & (S_ISUID|S_ISGID)) { |
27e2fb84 | 1587 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c | 1588 | execv(buf, origargv); /* try again */ |
463ee0b2 | 1589 | croak("Can't do setuid\n"); |
13281fa4 LW |
1590 | } |
1591 | #endif | |
1592 | #endif | |
463ee0b2 | 1593 | croak("Can't open perl script \"%s\": %s\n", |
2304df62 | 1594 | SvPVX(GvSV(curcop->cop_filegv)), Strerror(errno)); |
13281fa4 | 1595 | } |
79072805 | 1596 | } |
8d063cd8 | 1597 | |
79072805 | 1598 | static void |
96436eeb | 1599 | validate_suid(validarg, scriptname) |
79072805 | 1600 | char *validarg; |
96436eeb | 1601 | char *scriptname; |
79072805 | 1602 | { |
96436eeb | 1603 | int which; |
1604 | ||
13281fa4 LW |
1605 | /* do we need to emulate setuid on scripts? */ |
1606 | ||
1607 | /* This code is for those BSD systems that have setuid #! scripts disabled | |
1608 | * in the kernel because of a security problem. Merely defining DOSUID | |
1609 | * in perl will not fix that problem, but if you have disabled setuid | |
1610 | * scripts in the kernel, this will attempt to emulate setuid and setgid | |
1611 | * on scripts that have those now-otherwise-useless bits set. The setuid | |
27e2fb84 LW |
1612 | * root version must be called suidperl or sperlN.NNN. If regular perl |
1613 | * discovers that it has opened a setuid script, it calls suidperl with | |
1614 | * the same argv that it had. If suidperl finds that the script it has | |
1615 | * just opened is NOT setuid root, it sets the effective uid back to the | |
1616 | * uid. We don't just make perl setuid root because that loses the | |
1617 | * effective uid we had before invoking perl, if it was different from the | |
1618 | * uid. | |
13281fa4 LW |
1619 | * |
1620 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must | |
1621 | * be defined in suidperl only. suidperl must be setuid root. The | |
1622 | * Configure script will set this up for you if you want it. | |
1623 | */ | |
a687059c | 1624 | |
13281fa4 | 1625 | #ifdef DOSUID |
6e72f9df | 1626 | char *s, *s2; |
a0d0e21e LW |
1627 | |
1628 | if (Fstat(fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */ | |
463ee0b2 | 1629 | croak("Can't stat script \"%s\"",origfilename); |
96436eeb | 1630 | if (fdscript < 0 && statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 | 1631 | I32 len; |
13281fa4 | 1632 | |
a687059c | 1633 | #ifdef IAMSUID |
fe14fcc3 | 1634 | #ifndef HAS_SETREUID |
a687059c LW |
1635 | /* On this access check to make sure the directories are readable, |
1636 | * there is actually a small window that the user could use to make | |
1637 | * filename point to an accessible directory. So there is a faint | |
1638 | * chance that someone could execute a setuid script down in a | |
1639 | * non-accessible directory. I don't know what to do about that. | |
1640 | * But I don't think it's too important. The manual lies when | |
1641 | * it says access() is useful in setuid programs. | |
1642 | */ | |
463ee0b2 LW |
1643 | if (access(SvPVX(GvSV(curcop->cop_filegv)),1)) /*double check*/ |
1644 | croak("Permission denied"); | |
a687059c LW |
1645 | #else |
1646 | /* If we can swap euid and uid, then we can determine access rights | |
1647 | * with a simple stat of the file, and then compare device and | |
1648 | * inode to make sure we did stat() on the same file we opened. | |
1649 | * Then we just have to make sure he or she can execute it. | |
1650 | */ | |
1651 | { | |
1652 | struct stat tmpstatbuf; | |
1653 | ||
85e6fe83 LW |
1654 | if ( |
1655 | #ifdef HAS_SETREUID | |
1656 | setreuid(euid,uid) < 0 | |
a0d0e21e LW |
1657 | #else |
1658 | # if HAS_SETRESUID | |
85e6fe83 | 1659 | setresuid(euid,uid,(Uid_t)-1) < 0 |
a0d0e21e | 1660 | # endif |
85e6fe83 LW |
1661 | #endif |
1662 | || getuid() != euid || geteuid() != uid) | |
463ee0b2 | 1663 | croak("Can't swap uid and euid"); /* really paranoid */ |
a0d0e21e | 1664 | if (Stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0) |
463ee0b2 | 1665 | croak("Permission denied"); /* testing full pathname here */ |
a687059c LW |
1666 | if (tmpstatbuf.st_dev != statbuf.st_dev || |
1667 | tmpstatbuf.st_ino != statbuf.st_ino) { | |
1668 | (void)fclose(rsfp); | |
79072805 | 1669 | if (rsfp = my_popen("/bin/mail root","w")) { /* heh, heh */ |
a687059c LW |
1670 | fprintf(rsfp, |
1671 | "User %d tried to run dev %d ino %d in place of dev %d ino %d!\n\ | |
1672 | (Filename of set-id script was %s, uid %d gid %d.)\n\nSincerely,\nperl\n", | |
1673 | uid,tmpstatbuf.st_dev, tmpstatbuf.st_ino, | |
1674 | statbuf.st_dev, statbuf.st_ino, | |
463ee0b2 | 1675 | SvPVX(GvSV(curcop->cop_filegv)), |
20188a90 | 1676 | statbuf.st_uid, statbuf.st_gid); |
79072805 | 1677 | (void)my_pclose(rsfp); |
a687059c | 1678 | } |
463ee0b2 | 1679 | croak("Permission denied\n"); |
a687059c | 1680 | } |
85e6fe83 LW |
1681 | if ( |
1682 | #ifdef HAS_SETREUID | |
1683 | setreuid(uid,euid) < 0 | |
a0d0e21e LW |
1684 | #else |
1685 | # if defined(HAS_SETRESUID) | |
85e6fe83 | 1686 | setresuid(uid,euid,(Uid_t)-1) < 0 |
a0d0e21e | 1687 | # endif |
85e6fe83 LW |
1688 | #endif |
1689 | || getuid() != uid || geteuid() != euid) | |
463ee0b2 | 1690 | croak("Can't reswap uid and euid"); |
27e2fb84 | 1691 | if (!cando(S_IXUSR,FALSE,&statbuf)) /* can real uid exec? */ |
463ee0b2 | 1692 | croak("Permission denied\n"); |
a687059c | 1693 | } |
fe14fcc3 | 1694 | #endif /* HAS_SETREUID */ |
a687059c LW |
1695 | #endif /* IAMSUID */ |
1696 | ||
27e2fb84 | 1697 | if (!S_ISREG(statbuf.st_mode)) |
463ee0b2 | 1698 | croak("Permission denied"); |
27e2fb84 | 1699 | if (statbuf.st_mode & S_IWOTH) |
463ee0b2 | 1700 | croak("Setuid/gid script is writable by world"); |
13281fa4 | 1701 | doswitches = FALSE; /* -s is insecure in suid */ |
79072805 | 1702 | curcop->cop_line++; |
13281fa4 LW |
1703 | if (fgets(tokenbuf,sizeof tokenbuf, rsfp) == Nullch || |
1704 | strnNE(tokenbuf,"#!",2) ) /* required even on Sys V */ | |
463ee0b2 | 1705 | croak("No #! line"); |
663a0e37 LW |
1706 | s = tokenbuf+2; |
1707 | if (*s == ' ') s++; | |
45d8adaa | 1708 | while (!isSPACE(*s)) s++; |
6e72f9df | 1709 | for (s2 = s; (s2 > tokenbuf+2 && |
1710 | (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ; | |
1711 | if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ | |
463ee0b2 | 1712 | croak("Not a perl script"); |
a687059c | 1713 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 LW |
1714 | /* |
1715 | * #! arg must be what we saw above. They can invoke it by | |
1716 | * mentioning suidperl explicitly, but they may not add any strange | |
1717 | * arguments beyond what #! says if they do invoke suidperl that way. | |
1718 | */ | |
1719 | len = strlen(validarg); | |
1720 | if (strEQ(validarg," PHOOEY ") || | |
45d8adaa | 1721 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
463ee0b2 | 1722 | croak("Args must match #! line"); |
a687059c LW |
1723 | |
1724 | #ifndef IAMSUID | |
1725 | if (euid != uid && (statbuf.st_mode & S_ISUID) && | |
1726 | euid == statbuf.st_uid) | |
1727 | if (!do_undump) | |
463ee0b2 | 1728 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
1729 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1730 | #endif /* IAMSUID */ | |
13281fa4 LW |
1731 | |
1732 | if (euid) { /* oops, we're not the setuid root perl */ | |
a687059c | 1733 | (void)fclose(rsfp); |
13281fa4 | 1734 | #ifndef IAMSUID |
27e2fb84 | 1735 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c | 1736 | execv(buf, origargv); /* try again */ |
13281fa4 | 1737 | #endif |
463ee0b2 | 1738 | croak("Can't do setuid\n"); |
13281fa4 LW |
1739 | } |
1740 | ||
83025b21 | 1741 | if (statbuf.st_mode & S_ISGID && statbuf.st_gid != egid) { |
fe14fcc3 | 1742 | #ifdef HAS_SETEGID |
a687059c LW |
1743 | (void)setegid(statbuf.st_gid); |
1744 | #else | |
fe14fcc3 | 1745 | #ifdef HAS_SETREGID |
85e6fe83 LW |
1746 | (void)setregid((Gid_t)-1,statbuf.st_gid); |
1747 | #else | |
1748 | #ifdef HAS_SETRESGID | |
1749 | (void)setresgid((Gid_t)-1,statbuf.st_gid,(Gid_t)-1); | |
a687059c LW |
1750 | #else |
1751 | setgid(statbuf.st_gid); | |
1752 | #endif | |
1753 | #endif | |
85e6fe83 | 1754 | #endif |
83025b21 | 1755 | if (getegid() != statbuf.st_gid) |
463ee0b2 | 1756 | croak("Can't do setegid!\n"); |
83025b21 | 1757 | } |
a687059c LW |
1758 | if (statbuf.st_mode & S_ISUID) { |
1759 | if (statbuf.st_uid != euid) | |
fe14fcc3 | 1760 | #ifdef HAS_SETEUID |
a687059c LW |
1761 | (void)seteuid(statbuf.st_uid); /* all that for this */ |
1762 | #else | |
fe14fcc3 | 1763 | #ifdef HAS_SETREUID |
85e6fe83 LW |
1764 | (void)setreuid((Uid_t)-1,statbuf.st_uid); |
1765 | #else | |
1766 | #ifdef HAS_SETRESUID | |
1767 | (void)setresuid((Uid_t)-1,statbuf.st_uid,(Uid_t)-1); | |
a687059c LW |
1768 | #else |
1769 | setuid(statbuf.st_uid); | |
1770 | #endif | |
1771 | #endif | |
85e6fe83 | 1772 | #endif |
83025b21 | 1773 | if (geteuid() != statbuf.st_uid) |
463ee0b2 | 1774 | croak("Can't do seteuid!\n"); |
a687059c | 1775 | } |
83025b21 | 1776 | else if (uid) { /* oops, mustn't run as root */ |
fe14fcc3 | 1777 | #ifdef HAS_SETEUID |
85e6fe83 | 1778 | (void)seteuid((Uid_t)uid); |
a687059c | 1779 | #else |
fe14fcc3 | 1780 | #ifdef HAS_SETREUID |
85e6fe83 | 1781 | (void)setreuid((Uid_t)-1,(Uid_t)uid); |
a687059c | 1782 | #else |
85e6fe83 LW |
1783 | #ifdef HAS_SETRESUID |
1784 | (void)setresuid((Uid_t)-1,(Uid_t)uid,(Uid_t)-1); | |
1785 | #else | |
1786 | setuid((Uid_t)uid); | |
1787 | #endif | |
a687059c LW |
1788 | #endif |
1789 | #endif | |
83025b21 | 1790 | if (geteuid() != uid) |
463ee0b2 | 1791 | croak("Can't do seteuid!\n"); |
83025b21 | 1792 | } |
748a9306 | 1793 | init_ids(); |
27e2fb84 | 1794 | if (!cando(S_IXUSR,TRUE,&statbuf)) |
463ee0b2 | 1795 | croak("Permission denied\n"); /* they can't do this */ |
13281fa4 LW |
1796 | } |
1797 | #ifdef IAMSUID | |
1798 | else if (preprocess) | |
463ee0b2 | 1799 | croak("-P not allowed for setuid/setgid script\n"); |
96436eeb | 1800 | else if (fdscript >= 0) |
1801 | croak("fd script not allowed in suidperl\n"); | |
13281fa4 | 1802 | else |
463ee0b2 | 1803 | croak("Script is not setuid/setgid in suidperl\n"); |
96436eeb | 1804 | |
1805 | /* We absolutely must clear out any saved ids here, so we */ | |
1806 | /* exec the real perl, substituting fd script for scriptname. */ | |
1807 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ | |
1808 | rewind(rsfp); | |
6e72f9df | 1809 | lseek(fileno(rsfp),(Off_t)0,0); /* just in case rewind didn't */ |
96436eeb | 1810 | for (which = 1; origargv[which] && origargv[which] != scriptname; which++) ; |
1811 | if (!origargv[which]) | |
1812 | croak("Permission denied"); | |
1813 | (void)sprintf(buf, "/dev/fd/%d/%.127s", fileno(rsfp), origargv[which]); | |
1814 | origargv[which] = buf; | |
1815 | ||
1816 | #if defined(HAS_FCNTL) && defined(F_SETFD) | |
1817 | fcntl(fileno(rsfp),F_SETFD,0); /* ensure no close-on-exec */ | |
1818 | #endif | |
1819 | ||
1820 | (void)sprintf(tokenbuf, "%s/perl%s", BIN, patchlevel); | |
1821 | execv(tokenbuf, origargv); /* try again */ | |
1822 | croak("Can't do setuid\n"); | |
13281fa4 | 1823 | #endif /* IAMSUID */ |
a687059c | 1824 | #else /* !DOSUID */ |
a687059c LW |
1825 | if (euid != uid || egid != gid) { /* (suidperl doesn't exist, in fact) */ |
1826 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW | |
a0d0e21e | 1827 | Fstat(fileno(rsfp),&statbuf); /* may be either wrapped or real suid */ |
a687059c LW |
1828 | if ((euid != uid && euid == statbuf.st_uid && statbuf.st_mode & S_ISUID) |
1829 | || | |
1830 | (egid != gid && egid == statbuf.st_gid && statbuf.st_mode & S_ISGID) | |
1831 | ) | |
1832 | if (!do_undump) | |
463ee0b2 | 1833 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
1834 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1835 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ | |
1836 | /* not set-id, must be wrapped */ | |
a687059c | 1837 | } |
13281fa4 | 1838 | #endif /* DOSUID */ |
79072805 | 1839 | } |
13281fa4 | 1840 | |
79072805 LW |
1841 | static void |
1842 | find_beginning() | |
1843 | { | |
6e72f9df | 1844 | register char *s, *s2; |
33b78306 LW |
1845 | |
1846 | /* skip forward in input to the real script? */ | |
1847 | ||
463ee0b2 | 1848 | taint_not("-x"); |
33b78306 | 1849 | while (doextract) { |
79072805 | 1850 | if ((s = sv_gets(linestr, rsfp, 0)) == Nullch) |
463ee0b2 | 1851 | croak("No Perl script found in input\n"); |
6e72f9df | 1852 | if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) { |
33b78306 LW |
1853 | ungetc('\n',rsfp); /* to keep line count right */ |
1854 | doextract = FALSE; | |
6e72f9df | 1855 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
1856 | s2 = s; | |
1857 | while (*s == ' ' || *s == '\t') s++; | |
1858 | if (*s++ == '-') { | |
1859 | while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--; | |
1860 | if (strnEQ(s2-4,"perl",4)) | |
1861 | /*SUPPRESS 530*/ | |
1862 | while (s = moreswitches(s)) ; | |
33b78306 | 1863 | } |
79072805 | 1864 | if (cddir && chdir(cddir) < 0) |
463ee0b2 | 1865 | croak("Can't chdir to %s",cddir); |
83025b21 LW |
1866 | } |
1867 | } | |
1868 | } | |
1869 | ||
79072805 | 1870 | static void |
748a9306 | 1871 | init_ids() |
352d5a3a | 1872 | { |
748a9306 LW |
1873 | uid = (int)getuid(); |
1874 | euid = (int)geteuid(); | |
1875 | gid = (int)getgid(); | |
1876 | egid = (int)getegid(); | |
1877 | #ifdef VMS | |
1878 | uid |= gid << 16; | |
1879 | euid |= egid << 16; | |
1880 | #endif | |
4633a7c4 | 1881 | tainting |= (uid && (euid != uid || egid != gid)); |
748a9306 | 1882 | } |
79072805 | 1883 | |
748a9306 LW |
1884 | static void |
1885 | init_debugger() | |
1886 | { | |
79072805 | 1887 | curstash = debstash; |
748a9306 | 1888 | dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); |
79072805 | 1889 | AvREAL_off(dbargs); |
a0d0e21e LW |
1890 | DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); |
1891 | DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); | |
748a9306 LW |
1892 | DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); |
1893 | DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); | |
c07a80fd | 1894 | sv_setiv(DBsingle, 0); |
748a9306 | 1895 | DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); |
c07a80fd | 1896 | sv_setiv(DBtrace, 0); |
748a9306 | 1897 | DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); |
c07a80fd | 1898 | sv_setiv(DBsignal, 0); |
79072805 | 1899 | curstash = defstash; |
352d5a3a LW |
1900 | } |
1901 | ||
79072805 | 1902 | static void |
8990e307 | 1903 | init_stacks() |
79072805 | 1904 | { |
6e72f9df | 1905 | curstack = newAV(); |
1906 | mainstack = curstack; /* remember in case we switch stacks */ | |
1907 | AvREAL_off(curstack); /* not a real array */ | |
1908 | av_extend(curstack,127); | |
79072805 | 1909 | |
6e72f9df | 1910 | stack_base = AvARRAY(curstack); |
79072805 | 1911 | stack_sp = stack_base; |
8990e307 | 1912 | stack_max = stack_base + 127; |
79072805 | 1913 | |
6e72f9df | 1914 | /* Shouldn't these stacks be per-interpreter? */ |
1915 | if (markstack) { | |
1916 | markstack_ptr = markstack; | |
1917 | } else { | |
1918 | New(54,markstack,64,I32); | |
1919 | markstack_ptr = markstack; | |
1920 | markstack_max = markstack + 64; | |
1921 | } | |
79072805 | 1922 | |
6e72f9df | 1923 | if (scopestack) { |
1924 | scopestack_ix = 0; | |
1925 | } else { | |
1926 | New(54,scopestack,32,I32); | |
1927 | scopestack_ix = 0; | |
1928 | scopestack_max = 32; | |
1929 | } | |
79072805 | 1930 | |
6e72f9df | 1931 | if (savestack) { |
1932 | savestack_ix = 0; | |
1933 | } else { | |
1934 | New(54,savestack,128,ANY); | |
1935 | savestack_ix = 0; | |
1936 | savestack_max = 128; | |
1937 | } | |
79072805 | 1938 | |
6e72f9df | 1939 | if (retstack) { |
1940 | retstack_ix = 0; | |
1941 | } else { | |
1942 | New(54,retstack,16,OP*); | |
1943 | retstack_ix = 0; | |
1944 | retstack_max = 16; | |
1945 | } | |
8d063cd8 | 1946 | |
a5f75d66 AD |
1947 | cxstack_max = 8192 / sizeof(CONTEXT) - 2; /* Use most of 8K. */ |
1948 | New(50,cxstack,cxstack_max + 1,CONTEXT); | |
8990e307 | 1949 | cxstack_ix = -1; |
8990e307 LW |
1950 | |
1951 | New(50,tmps_stack,128,SV*); | |
1952 | tmps_ix = -1; | |
1953 | tmps_max = 128; | |
1954 | ||
79072805 LW |
1955 | DEBUG( { |
1956 | New(51,debname,128,char); | |
1957 | New(52,debdelim,128,char); | |
1958 | } ) | |
378cc40b | 1959 | } |
33b78306 | 1960 | |
6e72f9df | 1961 | static void |
1962 | nuke_stacks() | |
1963 | { | |
1964 | Safefree(cxstack); | |
1965 | Safefree(tmps_stack); | |
1966 | } | |
1967 | ||
a0d0e21e | 1968 | static FILE *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
79072805 | 1969 | static void |
8990e307 LW |
1970 | init_lexer() |
1971 | { | |
a0d0e21e | 1972 | tmpfp = rsfp; |
8990e307 LW |
1973 | |
1974 | lex_start(linestr); | |
1975 | rsfp = tmpfp; | |
1976 | subname = newSVpv("main",4); | |
1977 | } | |
1978 | ||
1979 | static void | |
79072805 | 1980 | init_predump_symbols() |
45d8adaa | 1981 | { |
93a17b20 | 1982 | GV *tmpgv; |
a0d0e21e | 1983 | GV *othergv; |
79072805 | 1984 | |
85e6fe83 | 1985 | sv_setpvn(GvSV(gv_fetchpv("\"", TRUE, SVt_PV)), " ", 1); |
79072805 | 1986 | |
85e6fe83 | 1987 | stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
a5f75d66 | 1988 | GvMULTI_on(stdingv); |
a0d0e21e | 1989 | IoIFP(GvIOp(stdingv)) = stdin; |
adbc6bb1 | 1990 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 | 1991 | GvMULTI_on(tmpgv); |
a0d0e21e | 1992 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(stdingv)); |
79072805 | 1993 | |
85e6fe83 | 1994 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 | 1995 | GvMULTI_on(tmpgv); |
a0d0e21e | 1996 | IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = stdout; |
4633a7c4 | 1997 | setdefout(tmpgv); |
adbc6bb1 | 1998 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 | 1999 | GvMULTI_on(tmpgv); |
a0d0e21e | 2000 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(defoutgv)); |
79072805 | 2001 | |
a0d0e21e | 2002 | othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
a5f75d66 | 2003 | GvMULTI_on(othergv); |
a0d0e21e | 2004 | IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = stderr; |
adbc6bb1 | 2005 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 | 2006 | GvMULTI_on(tmpgv); |
a0d0e21e | 2007 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv)); |
79072805 LW |
2008 | |
2009 | statname = NEWSV(66,0); /* last filename we did stat on */ | |
ab821d7f | 2010 | |
6e72f9df | 2011 | if (!osname) |
2012 | osname = savepv(OSNAME); | |
79072805 | 2013 | } |
33b78306 | 2014 | |
79072805 LW |
2015 | static void |
2016 | init_postdump_symbols(argc,argv,env) | |
2017 | register int argc; | |
2018 | register char **argv; | |
2019 | register char **env; | |
33b78306 | 2020 | { |
79072805 LW |
2021 | char *s; |
2022 | SV *sv; | |
2023 | GV* tmpgv; | |
fe14fcc3 | 2024 | |
79072805 LW |
2025 | argc--,argv++; /* skip name of script */ |
2026 | if (doswitches) { | |
2027 | for (; argc > 0 && **argv == '-'; argc--,argv++) { | |
2028 | if (!argv[0][1]) | |
2029 | break; | |
2030 | if (argv[0][1] == '-') { | |
2031 | argc--,argv++; | |
2032 | break; | |
2033 | } | |
93a17b20 | 2034 | if (s = strchr(argv[0], '=')) { |
79072805 | 2035 | *s++ = '\0'; |
85e6fe83 | 2036 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 LW |
2037 | } |
2038 | else | |
85e6fe83 | 2039 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 | 2040 | } |
79072805 LW |
2041 | } |
2042 | toptarget = NEWSV(0,0); | |
2043 | sv_upgrade(toptarget, SVt_PVFM); | |
2044 | sv_setpvn(toptarget, "", 0); | |
748a9306 | 2045 | bodytarget = NEWSV(0,0); |
79072805 LW |
2046 | sv_upgrade(bodytarget, SVt_PVFM); |
2047 | sv_setpvn(bodytarget, "", 0); | |
2048 | formtarget = bodytarget; | |
2049 | ||
79072805 | 2050 | tainted = 1; |
85e6fe83 | 2051 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
79072805 LW |
2052 | sv_setpv(GvSV(tmpgv),origfilename); |
2053 | magicname("0", "0", 1); | |
2054 | } | |
85e6fe83 | 2055 | if (tmpgv = gv_fetchpv("\024",TRUE, SVt_PV)) |
79072805 | 2056 | time(&basetime); |
85e6fe83 | 2057 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
79072805 | 2058 | sv_setpv(GvSV(tmpgv),origargv[0]); |
85e6fe83 | 2059 | if (argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { |
a5f75d66 | 2060 | GvMULTI_on(argvgv); |
79072805 LW |
2061 | (void)gv_AVadd(argvgv); |
2062 | av_clear(GvAVn(argvgv)); | |
2063 | for (; argc > 0; argc--,argv++) { | |
a0d0e21e | 2064 | av_push(GvAVn(argvgv),newSVpv(argv[0],0)); |
79072805 LW |
2065 | } |
2066 | } | |
85e6fe83 | 2067 | if (envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 | 2068 | HV *hv; |
a5f75d66 | 2069 | GvMULTI_on(envgv); |
79072805 | 2070 | hv = GvHVn(envgv); |
463ee0b2 | 2071 | hv_clear(hv); |
a0d0e21e | 2072 | #ifndef VMS /* VMS doesn't have environ array */ |
4633a7c4 LW |
2073 | /* Note that if the supplied env parameter is actually a copy |
2074 | of the global environ then it may now point to free'd memory | |
2075 | if the environment has been modified since. To avoid this | |
2076 | problem we treat env==NULL as meaning 'use the default' | |
2077 | */ | |
2078 | if (!env) | |
2079 | env = environ; | |
8990e307 | 2080 | if (env != environ) { |
79072805 | 2081 | environ[0] = Nullch; |
8990e307 LW |
2082 | hv_magic(hv, envgv, 'E'); |
2083 | } | |
79072805 | 2084 | for (; *env; env++) { |
93a17b20 | 2085 | if (!(s = strchr(*env,'='))) |
79072805 LW |
2086 | continue; |
2087 | *s++ = '\0'; | |
2088 | sv = newSVpv(s--,0); | |
85e6fe83 | 2089 | sv_magic(sv, sv, 'e', *env, s - *env); |
79072805 LW |
2090 | (void)hv_store(hv, *env, s - *env, sv, 0); |
2091 | *s = '='; | |
fe14fcc3 | 2092 | } |
4550b24a | 2093 | #endif |
2094 | #ifdef DYNAMIC_ENV_FETCH | |
2095 | HvNAME(hv) = savepv(ENV_HV_NAME); | |
2096 | #endif | |
f511e57f | 2097 | hv_magic(hv, envgv, 'E'); |
79072805 | 2098 | } |
79072805 | 2099 | tainted = 0; |
85e6fe83 | 2100 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
79072805 LW |
2101 | sv_setiv(GvSV(tmpgv),(I32)getpid()); |
2102 | ||
33b78306 | 2103 | } |
34de22dd | 2104 | |
79072805 LW |
2105 | static void |
2106 | init_perllib() | |
34de22dd | 2107 | { |
85e6fe83 LW |
2108 | char *s; |
2109 | if (!tainting) { | |
2110 | s = getenv("PERL5LIB"); | |
2111 | if (s) | |
2112 | incpush(s); | |
2113 | else | |
2114 | incpush(getenv("PERLLIB")); | |
2115 | } | |
34de22dd | 2116 | |
4633a7c4 LW |
2117 | #ifdef APPLLIB_EXP |
2118 | incpush(APPLLIB_EXP); | |
16d20bd9 | 2119 | #endif |
4633a7c4 | 2120 | |
fed7345c AD |
2121 | #ifdef ARCHLIB_EXP |
2122 | incpush(ARCHLIB_EXP); | |
a0d0e21e | 2123 | #endif |
fed7345c AD |
2124 | #ifndef PRIVLIB_EXP |
2125 | #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" | |
34de22dd | 2126 | #endif |
fed7345c | 2127 | incpush(PRIVLIB_EXP); |
4633a7c4 LW |
2128 | |
2129 | #ifdef SITEARCH_EXP | |
2130 | incpush(SITEARCH_EXP); | |
2131 | #endif | |
2132 | #ifdef SITELIB_EXP | |
2133 | incpush(SITELIB_EXP); | |
2134 | #endif | |
2135 | #ifdef OLDARCHLIB_EXP /* 5.00[01] compatibility */ | |
2136 | incpush(OLDARCHLIB_EXP); | |
2137 | #endif | |
a0d0e21e | 2138 | |
4633a7c4 LW |
2139 | if (!tainting) |
2140 | incpush("."); | |
34de22dd | 2141 | } |
93a17b20 LW |
2142 | |
2143 | void | |
2144 | calllist(list) | |
2145 | AV* list; | |
2146 | { | |
a5f75d66 | 2147 | Sigjmp_buf oldtop; |
a0d0e21e LW |
2148 | STRLEN len; |
2149 | line_t oldline = curcop->cop_line; | |
93a17b20 | 2150 | |
a5f75d66 | 2151 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
93a17b20 | 2152 | |
8990e307 LW |
2153 | while (AvFILL(list) >= 0) { |
2154 | CV *cv = (CV*)av_shift(list); | |
93a17b20 | 2155 | |
8990e307 | 2156 | SAVEFREESV(cv); |
a0d0e21e | 2157 | |
a5f75d66 | 2158 | switch (Sigsetjmp(top_env,1)) { |
748a9306 | 2159 | case 0: { |
4633a7c4 | 2160 | SV* atsv = GvSV(errgv); |
748a9306 LW |
2161 | PUSHMARK(stack_sp); |
2162 | perl_call_sv((SV*)cv, G_EVAL|G_DISCARD); | |
2163 | (void)SvPV(atsv, len); | |
2164 | if (len) { | |
a5f75d66 | 2165 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
748a9306 LW |
2166 | curcop = &compiling; |
2167 | curcop->cop_line = oldline; | |
2168 | if (list == beginav) | |
2169 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); | |
2170 | else | |
2171 | sv_catpv(atsv, "END failed--cleanup aborted"); | |
2172 | croak("%s", SvPVX(atsv)); | |
2173 | } | |
a0d0e21e | 2174 | } |
85e6fe83 LW |
2175 | break; |
2176 | case 1: | |
748a9306 | 2177 | #ifdef VMS |
85e6fe83 | 2178 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 LW |
2179 | #else |
2180 | statusvalue = 1; | |
2181 | #endif | |
85e6fe83 LW |
2182 | /* FALL THROUGH */ |
2183 | case 2: | |
2184 | /* my_exit() was called */ | |
2185 | curstash = defstash; | |
2186 | if (endav) | |
2187 | calllist(endav); | |
a0d0e21e | 2188 | FREETMPS; |
a5f75d66 | 2189 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
2190 | curcop = &compiling; |
2191 | curcop->cop_line = oldline; | |
85e6fe83 LW |
2192 | if (statusvalue) { |
2193 | if (list == beginav) | |
a0d0e21e | 2194 | croak("BEGIN failed--compilation aborted"); |
85e6fe83 | 2195 | else |
a0d0e21e | 2196 | croak("END failed--cleanup aborted"); |
85e6fe83 | 2197 | } |
85e6fe83 LW |
2198 | my_exit(statusvalue); |
2199 | /* NOTREACHED */ | |
2200 | return; | |
2201 | case 3: | |
2202 | if (!restartop) { | |
2203 | fprintf(stderr, "panic: restartop\n"); | |
a0d0e21e | 2204 | FREETMPS; |
85e6fe83 LW |
2205 | break; |
2206 | } | |
a5f75d66 | 2207 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
2208 | curcop = &compiling; |
2209 | curcop->cop_line = oldline; | |
a5f75d66 | 2210 | Siglongjmp(top_env, 3); |
8990e307 | 2211 | } |
93a17b20 LW |
2212 | } |
2213 | ||
a5f75d66 | 2214 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
93a17b20 LW |
2215 | } |
2216 |