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