Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* perl.c |
2 | * | |
3 | * Copyright (c) 1987-1994 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 | ||
24 | 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)); | |
48 | static void open_script _((char *, bool, SV *)); | |
49 | static void validate_suid _((char *)); | |
79072805 | 50 | |
93a17b20 | 51 | PerlInterpreter * |
79072805 LW |
52 | perl_alloc() |
53 | { | |
93a17b20 | 54 | PerlInterpreter *sv_interp; |
79072805 | 55 | |
8990e307 | 56 | curinterp = 0; |
93a17b20 | 57 | New(53, sv_interp, 1, PerlInterpreter); |
79072805 LW |
58 | return sv_interp; |
59 | } | |
60 | ||
61 | void | |
62 | perl_construct( sv_interp ) | |
93a17b20 | 63 | register PerlInterpreter *sv_interp; |
79072805 LW |
64 | { |
65 | if (!(curinterp = sv_interp)) | |
66 | return; | |
67 | ||
8990e307 | 68 | #ifdef MULTIPLICITY |
93a17b20 | 69 | Zero(sv_interp, 1, PerlInterpreter); |
8990e307 | 70 | #endif |
79072805 LW |
71 | |
72 | /* Init the real globals? */ | |
73 | if (!linestr) { | |
74 | linestr = NEWSV(65,80); | |
ed6116ce | 75 | sv_upgrade(linestr,SVt_PVIV); |
79072805 LW |
76 | |
77 | SvREADONLY_on(&sv_undef); | |
78 | ||
79 | sv_setpv(&sv_no,No); | |
463ee0b2 | 80 | SvNV(&sv_no); |
79072805 LW |
81 | SvREADONLY_on(&sv_no); |
82 | ||
83 | sv_setpv(&sv_yes,Yes); | |
463ee0b2 | 84 | SvNV(&sv_yes); |
79072805 LW |
85 | SvREADONLY_on(&sv_yes); |
86 | ||
87 | #ifdef MSDOS | |
88 | /* | |
89 | * There is no way we can refer to them from Perl so close them to save | |
90 | * space. The other alternative would be to provide STDAUX and STDPRN | |
91 | * filehandles. | |
92 | */ | |
93 | (void)fclose(stdaux); | |
94 | (void)fclose(stdprn); | |
95 | #endif | |
96 | } | |
97 | ||
8990e307 | 98 | #ifdef MULTIPLICITY |
79072805 | 99 | chopset = " \n-"; |
463ee0b2 | 100 | copline = NOLINE; |
79072805 | 101 | curcop = &compiling; |
79072805 LW |
102 | dlmax = 128; |
103 | laststatval = -1; | |
104 | laststype = OP_STAT; | |
105 | maxscream = -1; | |
106 | maxsysfd = MAXSYSFD; | |
107 | nrs = "\n"; | |
108 | nrschar = '\n'; | |
109 | nrslen = 1; | |
110 | rs = "\n"; | |
111 | rschar = '\n'; | |
112 | rsfp = Nullfp; | |
113 | rslen = 1; | |
463ee0b2 | 114 | statname = Nullsv; |
79072805 | 115 | tmps_floor = -1; |
79072805 LW |
116 | #endif |
117 | ||
748a9306 | 118 | init_ids(); |
a0d0e21e | 119 | sprintf(patchlevel, "%5.3f", 5.0 + (PATCHLEVEL / 1000.0)); |
79072805 LW |
120 | |
121 | fdpid = newAV(); /* for remembering popen pids by fd */ | |
463ee0b2 | 122 | pidstatus = newHV();/* for remembering status of dead pids */ |
8990e307 LW |
123 | |
124 | init_stacks(); | |
125 | ENTER; | |
79072805 LW |
126 | } |
127 | ||
128 | void | |
748a9306 | 129 | perl_destruct(sv_interp) |
93a17b20 | 130 | register PerlInterpreter *sv_interp; |
79072805 | 131 | { |
748a9306 | 132 | int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
8990e307 | 133 | I32 last_sv_count; |
a0d0e21e | 134 | HV *hv; |
8990e307 | 135 | |
79072805 LW |
136 | if (!(curinterp = sv_interp)) |
137 | return; | |
748a9306 LW |
138 | |
139 | destruct_level = perl_destruct_level; | |
8990e307 | 140 | LEAVE; |
a0d0e21e LW |
141 | FREETMPS; |
142 | ||
143 | if (sv_objcount) { | |
144 | /* We must account for everything. First the syntax tree. */ | |
145 | if (main_root) { | |
146 | curpad = AvARRAY(comppad); | |
147 | op_free(main_root); | |
148 | main_root = 0; | |
149 | } | |
150 | } | |
151 | if (sv_objcount) { | |
152 | /* | |
153 | * Try to destruct global references. We do this first so that the | |
154 | * destructors and destructees still exist. Some sv's might remain. | |
155 | * Non-referenced objects are on their own. | |
156 | */ | |
157 | ||
158 | dirty = TRUE; | |
159 | sv_clean_objs(); | |
8990e307 LW |
160 | } |
161 | ||
a0d0e21e | 162 | if (destruct_level == 0){ |
8990e307 | 163 | |
a0d0e21e LW |
164 | DEBUG_P(debprofdump()); |
165 | ||
166 | /* The exit() function will do everything that needs doing. */ | |
167 | return; | |
168 | } | |
169 | ||
170 | /* Prepare to destruct main symbol table. */ | |
171 | hv = defstash; | |
85e6fe83 | 172 | defstash = 0; |
a0d0e21e LW |
173 | SvREFCNT_dec(hv); |
174 | ||
175 | FREETMPS; | |
176 | if (destruct_level >= 2) { | |
177 | if (scopestack_ix != 0) | |
178 | warn("Unbalanced scopes: %d more ENTERs than LEAVEs\n", scopestack_ix); | |
179 | if (savestack_ix != 0) | |
180 | warn("Unbalanced saves: %d more saves than restores\n", savestack_ix); | |
181 | if (tmps_floor != -1) | |
182 | warn("Unbalanced tmps: %d more allocs than frees\n", tmps_floor + 1); | |
183 | if (cxstack_ix != -1) | |
184 | warn("Unbalanced context: %d more PUSHes than POPs\n", cxstack_ix + 1); | |
185 | } | |
8990e307 LW |
186 | |
187 | /* Now absolutely destruct everything, somehow or other, loops or no. */ | |
8990e307 LW |
188 | last_sv_count = 0; |
189 | while (sv_count != 0 && sv_count != last_sv_count) { | |
190 | last_sv_count = sv_count; | |
191 | sv_clean_all(); | |
192 | } | |
193 | if (sv_count != 0) | |
194 | warn("Scalars leaked: %d\n", sv_count); | |
a0d0e21e LW |
195 | |
196 | DEBUG_P(debprofdump()); | |
79072805 LW |
197 | } |
198 | ||
199 | void | |
200 | perl_free(sv_interp) | |
93a17b20 | 201 | PerlInterpreter *sv_interp; |
79072805 LW |
202 | { |
203 | if (!(curinterp = sv_interp)) | |
204 | return; | |
205 | Safefree(sv_interp); | |
206 | } | |
ecfc5424 | 207 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) |
a0d0e21e LW |
208 | char *getenv _((char *)); /* Usually in <stdlib.h> */ |
209 | #endif | |
79072805 LW |
210 | |
211 | int | |
a0d0e21e | 212 | perl_parse(sv_interp, xsinit, argc, argv, env) |
93a17b20 | 213 | PerlInterpreter *sv_interp; |
a0d0e21e LW |
214 | void (*xsinit)_((void)); |
215 | int argc; | |
216 | char **argv; | |
79072805 | 217 | char **env; |
8d063cd8 | 218 | { |
79072805 | 219 | register SV *sv; |
8d063cd8 | 220 | register char *s; |
45d8adaa | 221 | char *scriptname; |
a0d0e21e | 222 | VOL bool dosearch = FALSE; |
13281fa4 | 223 | char *validarg = ""; |
748a9306 | 224 | AV* comppadlist; |
8d063cd8 | 225 | |
a687059c LW |
226 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
227 | #ifdef IAMSUID | |
228 | #undef IAMSUID | |
463ee0b2 | 229 | croak("suidperl is no longer needed since the kernel can now execute\n\ |
a687059c LW |
230 | setuid perl scripts securely.\n"); |
231 | #endif | |
232 | #endif | |
233 | ||
79072805 LW |
234 | if (!(curinterp = sv_interp)) |
235 | return 255; | |
236 | ||
ac58e20f LW |
237 | origargv = argv; |
238 | origargc = argc; | |
a0d0e21e | 239 | #ifndef VMS /* VMS doesn't have environ array */ |
fe14fcc3 | 240 | origenviron = environ; |
a0d0e21e LW |
241 | #endif |
242 | ||
243 | if (do_undump) { | |
244 | ||
245 | /* Come here if running an undumped a.out. */ | |
246 | ||
247 | origfilename = savepv(argv[0]); | |
248 | do_undump = FALSE; | |
249 | cxstack_ix = -1; /* start label stack again */ | |
748a9306 | 250 | init_ids(); |
a0d0e21e LW |
251 | init_postdump_symbols(argc,argv,env); |
252 | return 0; | |
253 | } | |
254 | ||
255 | if (main_root) | |
256 | op_free(main_root); | |
257 | main_root = 0; | |
79072805 LW |
258 | |
259 | switch (setjmp(top_env)) { | |
260 | case 1: | |
748a9306 | 261 | #ifdef VMS |
79072805 | 262 | statusvalue = 255; |
748a9306 LW |
263 | #else |
264 | statusvalue = 1; | |
265 | #endif | |
79072805 | 266 | case 2: |
8990e307 LW |
267 | curstash = defstash; |
268 | if (endav) | |
269 | calllist(endav); | |
79072805 LW |
270 | return(statusvalue); /* my_exit() was called */ |
271 | case 3: | |
272 | fprintf(stderr, "panic: top_env\n"); | |
8990e307 | 273 | return 1; |
79072805 LW |
274 | } |
275 | ||
79072805 LW |
276 | sv_setpvn(linestr,"",0); |
277 | sv = newSVpv("",0); /* first used for -I flags */ | |
8990e307 | 278 | SAVEFREESV(sv); |
79072805 | 279 | init_main_stash(); |
33b78306 | 280 | for (argc--,argv++; argc > 0; argc--,argv++) { |
8d063cd8 LW |
281 | if (argv[0][0] != '-' || !argv[0][1]) |
282 | break; | |
13281fa4 LW |
283 | #ifdef DOSUID |
284 | if (*validarg) | |
285 | validarg = " PHOOEY "; | |
286 | else | |
287 | validarg = argv[0]; | |
288 | #endif | |
289 | s = argv[0]+1; | |
8d063cd8 | 290 | reswitch: |
13281fa4 | 291 | switch (*s) { |
27e2fb84 | 292 | case '0': |
2304df62 | 293 | case 'F': |
378cc40b | 294 | case 'a': |
33b78306 | 295 | case 'c': |
a687059c | 296 | case 'd': |
8d063cd8 | 297 | case 'D': |
33b78306 | 298 | case 'i': |
fe14fcc3 | 299 | case 'l': |
33b78306 LW |
300 | case 'n': |
301 | case 'p': | |
79072805 | 302 | case 's': |
463ee0b2 | 303 | case 'T': |
33b78306 LW |
304 | case 'u': |
305 | case 'U': | |
306 | case 'v': | |
307 | case 'w': | |
308 | if (s = moreswitches(s)) | |
309 | goto reswitch; | |
8d063cd8 | 310 | break; |
33b78306 | 311 | |
8d063cd8 | 312 | case 'e': |
a687059c | 313 | if (euid != uid || egid != gid) |
463ee0b2 | 314 | croak("No -e allowed in setuid scripts"); |
8d063cd8 | 315 | if (!e_fp) { |
a0d0e21e | 316 | e_tmpname = savepv(TMPPATH); |
a687059c | 317 | (void)mktemp(e_tmpname); |
83025b21 | 318 | if (!*e_tmpname) |
463ee0b2 | 319 | croak("Can't mktemp()"); |
8d063cd8 | 320 | e_fp = fopen(e_tmpname,"w"); |
33b78306 | 321 | if (!e_fp) |
463ee0b2 | 322 | croak("Cannot open temporary file"); |
8d063cd8 | 323 | } |
33b78306 | 324 | if (argv[1]) { |
8d063cd8 | 325 | fputs(argv[1],e_fp); |
33b78306 LW |
326 | argc--,argv++; |
327 | } | |
a687059c | 328 | (void)putc('\n', e_fp); |
8d063cd8 LW |
329 | break; |
330 | case 'I': | |
463ee0b2 | 331 | taint_not("-I"); |
79072805 LW |
332 | sv_catpv(sv,"-"); |
333 | sv_catpv(sv,s); | |
334 | sv_catpv(sv," "); | |
a687059c | 335 | if (*++s) { |
a0d0e21e | 336 | av_push(GvAVn(incgv),newSVpv(s,0)); |
378cc40b | 337 | } |
33b78306 | 338 | else if (argv[1]) { |
a0d0e21e | 339 | av_push(GvAVn(incgv),newSVpv(argv[1],0)); |
79072805 | 340 | sv_catpv(sv,argv[1]); |
8d063cd8 | 341 | argc--,argv++; |
79072805 | 342 | sv_catpv(sv," "); |
8d063cd8 LW |
343 | } |
344 | break; | |
8d063cd8 | 345 | case 'P': |
463ee0b2 | 346 | taint_not("-P"); |
8d063cd8 | 347 | preprocess = TRUE; |
13281fa4 | 348 | s++; |
8d063cd8 | 349 | goto reswitch; |
378cc40b | 350 | case 'S': |
463ee0b2 | 351 | taint_not("-S"); |
378cc40b | 352 | dosearch = TRUE; |
13281fa4 | 353 | s++; |
378cc40b | 354 | goto reswitch; |
33b78306 LW |
355 | case 'x': |
356 | doextract = TRUE; | |
13281fa4 | 357 | s++; |
33b78306 | 358 | if (*s) |
a0d0e21e | 359 | cddir = savepv(s); |
33b78306 | 360 | break; |
8d063cd8 LW |
361 | case '-': |
362 | argc--,argv++; | |
363 | goto switch_end; | |
364 | case 0: | |
365 | break; | |
366 | default: | |
463ee0b2 | 367 | croak("Unrecognized switch: -%s",s); |
8d063cd8 LW |
368 | } |
369 | } | |
370 | switch_end: | |
45d8adaa | 371 | scriptname = argv[0]; |
8d063cd8 | 372 | if (e_fp) { |
83025b21 | 373 | if (fflush(e_fp) || ferror(e_fp) || fclose(e_fp)) |
2304df62 | 374 | croak("Can't write to temp file for -e: %s", Strerror(errno)); |
8d063cd8 | 375 | argc++,argv--; |
45d8adaa | 376 | scriptname = e_tmpname; |
8d063cd8 | 377 | } |
79072805 LW |
378 | else if (scriptname == Nullch) { |
379 | #ifdef MSDOS | |
380 | if ( isatty(fileno(stdin)) ) | |
381 | moreswitches("v"); | |
fe14fcc3 | 382 | #endif |
79072805 LW |
383 | scriptname = "-"; |
384 | } | |
fe14fcc3 | 385 | |
79072805 | 386 | init_perllib(); |
8d063cd8 | 387 | |
79072805 | 388 | open_script(scriptname,dosearch,sv); |
8d063cd8 | 389 | |
79072805 | 390 | validate_suid(validarg); |
378cc40b | 391 | |
79072805 LW |
392 | if (doextract) |
393 | find_beginning(); | |
394 | ||
748a9306 LW |
395 | compcv = (CV*)NEWSV(1104,0); |
396 | sv_upgrade((SV *)compcv, SVt_PVCV); | |
397 | ||
79072805 LW |
398 | pad = newAV(); |
399 | comppad = pad; | |
400 | av_push(comppad, Nullsv); | |
401 | curpad = AvARRAY(comppad); | |
93a17b20 | 402 | padname = newAV(); |
8990e307 LW |
403 | comppad_name = padname; |
404 | comppad_name_fill = 0; | |
405 | min_intro_pending = 0; | |
79072805 LW |
406 | padix = 0; |
407 | ||
748a9306 LW |
408 | comppadlist = newAV(); |
409 | AvREAL_off(comppadlist); | |
8e07c86e AD |
410 | av_store(comppadlist, 0, (SV*)comppad_name); |
411 | av_store(comppadlist, 1, (SV*)comppad); | |
748a9306 LW |
412 | CvPADLIST(compcv) = comppadlist; |
413 | ||
a0d0e21e LW |
414 | if (xsinit) |
415 | (*xsinit)(); /* in case linked C routines want magical variables */ | |
748a9306 LW |
416 | #ifdef VMS |
417 | init_os_extras(); | |
418 | #endif | |
93a17b20 | 419 | |
93a17b20 | 420 | init_predump_symbols(); |
8990e307 LW |
421 | if (!do_undump) |
422 | init_postdump_symbols(argc,argv,env); | |
93a17b20 | 423 | |
79072805 LW |
424 | init_lexer(); |
425 | ||
426 | /* now parse the script */ | |
427 | ||
428 | error_count = 0; | |
429 | if (yyparse() || error_count) { | |
430 | if (minus_c) | |
463ee0b2 | 431 | croak("%s had compilation errors.\n", origfilename); |
79072805 | 432 | else { |
463ee0b2 | 433 | croak("Execution of %s aborted due to compilation errors.\n", |
79072805 | 434 | origfilename); |
378cc40b | 435 | } |
79072805 LW |
436 | } |
437 | curcop->cop_line = 0; | |
438 | curstash = defstash; | |
439 | preprocess = FALSE; | |
440 | if (e_fp) { | |
441 | e_fp = Nullfp; | |
442 | (void)UNLINK(e_tmpname); | |
378cc40b | 443 | } |
a687059c | 444 | |
93a17b20 | 445 | /* now that script is parsed, we can modify record separator */ |
a687059c | 446 | |
93a17b20 LW |
447 | rs = nrs; |
448 | rslen = nrslen; | |
449 | rschar = nrschar; | |
450 | rspara = (nrslen == 2); | |
85e6fe83 | 451 | sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), rs, rslen); |
45d8adaa | 452 | |
79072805 LW |
453 | if (do_undump) |
454 | my_unexec(); | |
455 | ||
8990e307 LW |
456 | if (dowarn) |
457 | gv_check(defstash); | |
458 | ||
a0d0e21e LW |
459 | LEAVE; |
460 | FREETMPS; | |
461 | ENTER; | |
462 | restartop = 0; | |
79072805 LW |
463 | return 0; |
464 | } | |
465 | ||
466 | int | |
467 | perl_run(sv_interp) | |
93a17b20 | 468 | PerlInterpreter *sv_interp; |
79072805 LW |
469 | { |
470 | if (!(curinterp = sv_interp)) | |
471 | return 255; | |
472 | switch (setjmp(top_env)) { | |
473 | case 1: | |
474 | cxstack_ix = -1; /* start context stack again */ | |
475 | break; | |
476 | case 2: | |
477 | curstash = defstash; | |
93a17b20 LW |
478 | if (endav) |
479 | calllist(endav); | |
a0d0e21e | 480 | FREETMPS; |
93a17b20 | 481 | return(statusvalue); /* my_exit() was called */ |
79072805 LW |
482 | case 3: |
483 | if (!restartop) { | |
484 | fprintf(stderr, "panic: restartop\n"); | |
a0d0e21e | 485 | FREETMPS; |
8990e307 | 486 | return 1; |
83025b21 | 487 | } |
79072805 LW |
488 | if (stack != mainstack) { |
489 | dSP; | |
490 | SWITCHSTACK(stack, mainstack); | |
491 | } | |
492 | break; | |
8d063cd8 | 493 | } |
79072805 LW |
494 | |
495 | if (!restartop) { | |
496 | DEBUG_x(dump_all()); | |
497 | DEBUG(fprintf(stderr,"\nEXECUTING...\n\n")); | |
498 | ||
499 | if (minus_c) { | |
500 | fprintf(stderr,"%s syntax OK\n", origfilename); | |
501 | my_exit(0); | |
502 | } | |
a0d0e21e LW |
503 | if (perldb && DBsingle) |
504 | sv_setiv(DBsingle, 1); | |
45d8adaa | 505 | } |
79072805 LW |
506 | |
507 | /* do it */ | |
508 | ||
509 | if (restartop) { | |
510 | op = restartop; | |
511 | restartop = 0; | |
512 | run(); | |
513 | } | |
514 | else if (main_start) { | |
515 | op = main_start; | |
516 | run(); | |
517 | } | |
79072805 LW |
518 | |
519 | my_exit(0); | |
a0d0e21e | 520 | return 0; |
79072805 LW |
521 | } |
522 | ||
523 | void | |
524 | my_exit(status) | |
748a9306 | 525 | U32 status; |
79072805 | 526 | { |
a0d0e21e LW |
527 | register CONTEXT *cx; |
528 | I32 gimme; | |
529 | SV **newsp; | |
530 | ||
748a9306 | 531 | statusvalue = FIXSTATUS(status); |
a0d0e21e LW |
532 | if (cxstack_ix >= 0) { |
533 | if (cxstack_ix > 0) | |
534 | dounwind(0); | |
535 | POPBLOCK(cx,curpm); | |
536 | LEAVE; | |
537 | } | |
79072805 LW |
538 | longjmp(top_env, 2); |
539 | } | |
540 | ||
a0d0e21e LW |
541 | SV* |
542 | perl_get_sv(name, create) | |
543 | char* name; | |
544 | I32 create; | |
545 | { | |
546 | GV* gv = gv_fetchpv(name, create, SVt_PV); | |
547 | if (gv) | |
548 | return GvSV(gv); | |
549 | return Nullsv; | |
550 | } | |
551 | ||
552 | AV* | |
553 | perl_get_av(name, create) | |
554 | char* name; | |
555 | I32 create; | |
556 | { | |
557 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); | |
558 | if (create) | |
559 | return GvAVn(gv); | |
560 | if (gv) | |
561 | return GvAV(gv); | |
562 | return Nullav; | |
563 | } | |
564 | ||
565 | HV* | |
566 | perl_get_hv(name, create) | |
567 | char* name; | |
568 | I32 create; | |
569 | { | |
570 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); | |
571 | if (create) | |
572 | return GvHVn(gv); | |
573 | if (gv) | |
574 | return GvHV(gv); | |
575 | return Nullhv; | |
576 | } | |
577 | ||
578 | CV* | |
579 | perl_get_cv(name, create) | |
580 | char* name; | |
581 | I32 create; | |
582 | { | |
583 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); | |
584 | if (create && !GvCV(gv)) | |
585 | return newSUB(start_subparse(), | |
586 | newSVOP(OP_CONST, 0, newSVpv(name,0)), | |
587 | Nullop); | |
588 | if (gv) | |
589 | return GvCV(gv); | |
590 | return Nullcv; | |
591 | } | |
592 | ||
79072805 LW |
593 | /* Be sure to refetch the stack pointer after calling these routines. */ |
594 | ||
a0d0e21e LW |
595 | I32 |
596 | perl_call_argv(subname, flags, argv) | |
8990e307 | 597 | char *subname; |
a0d0e21e LW |
598 | I32 flags; /* See G_* flags in cop.h */ |
599 | register char **argv; /* null terminated arg list */ | |
8990e307 | 600 | { |
a0d0e21e | 601 | dSP; |
8990e307 | 602 | |
a0d0e21e LW |
603 | PUSHMARK(sp); |
604 | if (argv) { | |
8990e307 | 605 | while (*argv) { |
a0d0e21e | 606 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 LW |
607 | argv++; |
608 | } | |
a0d0e21e | 609 | PUTBACK; |
8990e307 | 610 | } |
a0d0e21e | 611 | return perl_call_pv(subname, flags); |
8990e307 LW |
612 | } |
613 | ||
a0d0e21e LW |
614 | I32 |
615 | perl_call_pv(subname, flags) | |
616 | char *subname; /* name of the subroutine */ | |
617 | I32 flags; /* See G_* flags in cop.h */ | |
618 | { | |
619 | return perl_call_sv((SV*)perl_get_cv(subname, TRUE), flags); | |
620 | } | |
621 | ||
622 | I32 | |
623 | perl_call_method(methname, flags) | |
624 | char *methname; /* name of the subroutine */ | |
625 | I32 flags; /* See G_* flags in cop.h */ | |
626 | { | |
627 | dSP; | |
628 | OP myop; | |
629 | if (!op) | |
630 | op = &myop; | |
631 | XPUSHs(sv_2mortal(newSVpv(methname,0))); | |
632 | PUTBACK; | |
633 | pp_method(); | |
634 | return perl_call_sv(*stack_sp--, flags); | |
635 | } | |
636 | ||
637 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
638 | I32 | |
639 | perl_call_sv(sv, flags) | |
640 | SV* sv; | |
641 | I32 flags; /* See G_* flags in cop.h */ | |
642 | { | |
643 | LOGOP myop; /* fake syntax tree node */ | |
644 | SV** sp = stack_sp; | |
645 | I32 oldmark = TOPMARK; | |
646 | I32 retval; | |
647 | jmp_buf oldtop; | |
648 | I32 oldscope; | |
649 | ||
650 | if (flags & G_DISCARD) { | |
651 | ENTER; | |
652 | SAVETMPS; | |
653 | } | |
654 | ||
655 | SAVESPTR(op); | |
656 | op = (OP*)&myop; | |
657 | Zero(op, 1, LOGOP); | |
658 | EXTEND(stack_sp, 1); | |
659 | *++stack_sp = sv; | |
660 | oldscope = scopestack_ix; | |
661 | ||
662 | if (!(flags & G_NOARGS)) | |
663 | myop.op_flags = OPf_STACKED; | |
664 | myop.op_next = Nullop; | |
665 | myop.op_flags |= OPf_KNOW; | |
666 | if (flags & G_ARRAY) | |
667 | myop.op_flags |= OPf_LIST; | |
668 | ||
669 | if (flags & G_EVAL) { | |
670 | Copy(top_env, oldtop, 1, jmp_buf); | |
671 | ||
672 | cLOGOP->op_other = op; | |
673 | markstack_ptr--; | |
674 | pp_entertry(); | |
675 | markstack_ptr++; | |
676 | ||
677 | restart: | |
678 | switch (setjmp(top_env)) { | |
679 | case 0: | |
680 | break; | |
681 | case 1: | |
748a9306 | 682 | #ifdef VMS |
a0d0e21e | 683 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 LW |
684 | #else |
685 | statusvalue = 1; | |
686 | #endif | |
a0d0e21e LW |
687 | /* FALL THROUGH */ |
688 | case 2: | |
689 | /* my_exit() was called */ | |
690 | curstash = defstash; | |
691 | FREETMPS; | |
692 | Copy(oldtop, top_env, 1, jmp_buf); | |
693 | if (statusvalue) | |
694 | croak("Callback called exit"); | |
695 | my_exit(statusvalue); | |
696 | /* NOTREACHED */ | |
697 | case 3: | |
698 | if (restartop) { | |
699 | op = restartop; | |
700 | restartop = 0; | |
701 | goto restart; | |
702 | } | |
703 | stack_sp = stack_base + oldmark; | |
704 | if (flags & G_ARRAY) | |
705 | retval = 0; | |
706 | else { | |
707 | retval = 1; | |
708 | *++stack_sp = &sv_undef; | |
709 | } | |
710 | goto cleanup; | |
711 | } | |
712 | } | |
713 | ||
714 | if (op == (OP*)&myop) | |
715 | op = pp_entersub(); | |
716 | if (op) | |
717 | run(); | |
718 | retval = stack_sp - (stack_base + oldmark); | |
719 | if (flags & G_EVAL) | |
720 | sv_setpv(GvSV(gv_fetchpv("@",TRUE, SVt_PV)),""); | |
721 | ||
722 | cleanup: | |
723 | if (flags & G_EVAL) { | |
724 | if (scopestack_ix > oldscope) { | |
a0a2876f LW |
725 | SV **newsp; |
726 | PMOP *newpm; | |
727 | I32 gimme; | |
728 | register CONTEXT *cx; | |
729 | I32 optype; | |
730 | ||
731 | POPBLOCK(cx,newpm); | |
732 | POPEVAL(cx); | |
733 | pop_return(); | |
734 | curpm = newpm; | |
735 | LEAVE; | |
a0d0e21e LW |
736 | } |
737 | Copy(oldtop, top_env, 1, jmp_buf); | |
738 | } | |
739 | if (flags & G_DISCARD) { | |
740 | stack_sp = stack_base + oldmark; | |
741 | retval = 0; | |
742 | FREETMPS; | |
743 | LEAVE; | |
744 | } | |
745 | return retval; | |
746 | } | |
747 | ||
748 | /* Older forms, here grandfathered. */ | |
749 | ||
750 | #ifdef DEPRECATED | |
751 | I32 | |
752 | perl_callargv(subname, spix, gimme, argv) | |
753 | char *subname; | |
754 | register I32 spix; /* current stack pointer index */ | |
755 | I32 gimme; /* See G_* flags in cop.h */ | |
756 | register char **argv; /* null terminated arg list, NULL for no arglist */ | |
757 | { | |
758 | stack_sp = stack_base + spix; | |
759 | return spix + perl_call_argv(subname, gimme, argv); | |
760 | } | |
761 | ||
762 | I32 | |
763 | perl_callpv(subname, spix, gimme, hasargs, numargs) | |
79072805 | 764 | char *subname; |
a0d0e21e LW |
765 | I32 spix; /* stack pointer index after args are pushed */ |
766 | I32 gimme; /* See G_* flags in cop.h */ | |
8990e307 LW |
767 | I32 hasargs; /* whether to create a @_ array for routine */ |
768 | I32 numargs; /* how many args are pushed on the stack */ | |
769 | { | |
a0d0e21e LW |
770 | stack_sp = stack_base + spix; |
771 | PUSHMARK(stack_sp - numargs); | |
772 | return spix - numargs + perl_call_sv((SV*)perl_get_cv(subname, TRUE), | |
773 | gimme, hasargs, numargs); | |
8990e307 LW |
774 | } |
775 | ||
a0d0e21e LW |
776 | I32 |
777 | perl_callsv(sv, spix, gimme, hasargs, numargs) | |
8990e307 | 778 | SV* sv; |
a0d0e21e LW |
779 | I32 spix; /* stack pointer index after args are pushed */ |
780 | I32 gimme; /* See G_* flags in cop.h */ | |
79072805 LW |
781 | I32 hasargs; /* whether to create a @_ array for routine */ |
782 | I32 numargs; /* how many args are pushed on the stack */ | |
783 | { | |
a0d0e21e LW |
784 | stack_sp = stack_base + spix; |
785 | PUSHMARK(stack_sp - numargs); | |
786 | return spix - numargs + perl_call_sv(sv, gimme, hasargs, numargs); | |
787 | } | |
788 | #endif | |
789 | ||
790 | /* Require a module. */ | |
791 | ||
792 | void | |
793 | perl_requirepv(pv) | |
794 | char* pv; | |
795 | { | |
796 | UNOP myop; /* fake syntax tree node */ | |
797 | SV* sv; | |
798 | dSP; | |
79072805 LW |
799 | |
800 | ENTER; | |
463ee0b2 | 801 | SAVETMPS; |
79072805 | 802 | SAVESPTR(op); |
a0d0e21e LW |
803 | sv = sv_newmortal(); |
804 | sv_setpv(sv, pv); | |
79072805 | 805 | op = (OP*)&myop; |
a0d0e21e LW |
806 | Zero(op, 1, UNOP); |
807 | XPUSHs(sv); | |
79072805 | 808 | |
a0d0e21e | 809 | myop.op_type = OP_REQUIRE; |
79072805 | 810 | myop.op_next = Nullop; |
a0d0e21e LW |
811 | myop.op_private = 1; |
812 | myop.op_flags = OPf_KNOW; | |
79072805 | 813 | |
a0d0e21e LW |
814 | PUTBACK; |
815 | if (op = pp_require()) | |
463ee0b2 | 816 | run(); |
a0d0e21e LW |
817 | stack_sp--; |
818 | FREETMPS; | |
79072805 | 819 | LEAVE; |
79072805 LW |
820 | } |
821 | ||
79072805 | 822 | void |
79072805 LW |
823 | magicname(sym,name,namlen) |
824 | char *sym; | |
825 | char *name; | |
826 | I32 namlen; | |
827 | { | |
828 | register GV *gv; | |
829 | ||
85e6fe83 | 830 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 LW |
831 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
832 | } | |
833 | ||
748a9306 LW |
834 | #if defined(DOSISH) |
835 | # define PERLLIB_SEP ';' | |
79072805 | 836 | #else |
232e078e AD |
837 | # if defined(VMS) |
838 | # define PERLLIB_SEP '|' | |
839 | # else | |
748a9306 | 840 | # define PERLLIB_SEP ':' |
232e078e | 841 | # endif |
79072805 LW |
842 | #endif |
843 | ||
844 | static void | |
845 | incpush(p) | |
846 | char *p; | |
847 | { | |
848 | char *s; | |
849 | ||
850 | if (!p) | |
851 | return; | |
852 | ||
853 | /* Break at all separators */ | |
854 | while (*p) { | |
855 | /* First, skip any consecutive separators */ | |
856 | while ( *p == PERLLIB_SEP ) { | |
857 | /* Uncomment the next line for PATH semantics */ | |
a0d0e21e | 858 | /* av_push(GvAVn(incgv), newSVpv(".", 1)); */ |
79072805 LW |
859 | p++; |
860 | } | |
93a17b20 | 861 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { |
a0d0e21e | 862 | av_push(GvAVn(incgv), newSVpv(p, (STRLEN)(s - p))); |
79072805 LW |
863 | p = s + 1; |
864 | } else { | |
a0d0e21e | 865 | av_push(GvAVn(incgv), newSVpv(p, 0)); |
79072805 LW |
866 | break; |
867 | } | |
868 | } | |
869 | } | |
870 | ||
871 | /* This routine handles any switches that can be given during run */ | |
872 | ||
873 | char * | |
874 | moreswitches(s) | |
875 | char *s; | |
876 | { | |
877 | I32 numlen; | |
878 | ||
879 | switch (*s) { | |
880 | case '0': | |
881 | nrschar = scan_oct(s, 4, &numlen); | |
a0d0e21e | 882 | nrs = savepvn("\n",1); |
79072805 LW |
883 | *nrs = nrschar; |
884 | if (nrschar > 0377) { | |
885 | nrslen = 0; | |
886 | nrs = ""; | |
887 | } | |
888 | else if (!nrschar && numlen >= 2) { | |
889 | nrslen = 2; | |
890 | nrs = "\n\n"; | |
891 | nrschar = '\n'; | |
892 | } | |
893 | return s + numlen; | |
2304df62 AD |
894 | case 'F': |
895 | minus_F = TRUE; | |
a0d0e21e | 896 | splitstr = savepv(s + 1); |
2304df62 AD |
897 | s += strlen(s); |
898 | return s; | |
79072805 LW |
899 | case 'a': |
900 | minus_a = TRUE; | |
901 | s++; | |
902 | return s; | |
903 | case 'c': | |
904 | minus_c = TRUE; | |
905 | s++; | |
906 | return s; | |
907 | case 'd': | |
463ee0b2 | 908 | taint_not("-d"); |
a0d0e21e LW |
909 | if (!perldb) { |
910 | perldb = TRUE; | |
911 | init_debugger(); | |
912 | } | |
79072805 LW |
913 | s++; |
914 | return s; | |
915 | case 'D': | |
916 | #ifdef DEBUGGING | |
463ee0b2 | 917 | taint_not("-D"); |
79072805 | 918 | if (isALPHA(s[1])) { |
8990e307 | 919 | static char debopts[] = "psltocPmfrxuLHXD"; |
79072805 LW |
920 | char *d; |
921 | ||
93a17b20 | 922 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
79072805 LW |
923 | debug |= 1 << (d - debopts); |
924 | } | |
925 | else { | |
926 | debug = atoi(s+1); | |
927 | for (s++; isDIGIT(*s); s++) ; | |
928 | } | |
8990e307 | 929 | debug |= 0x80000000; |
79072805 LW |
930 | #else |
931 | warn("Recompile perl with -DDEBUGGING to use -D switch\n"); | |
a0d0e21e | 932 | for (s++; isALNUM(*s); s++) ; |
79072805 LW |
933 | #endif |
934 | /*SUPPRESS 530*/ | |
935 | return s; | |
936 | case 'i': | |
937 | if (inplace) | |
938 | Safefree(inplace); | |
a0d0e21e | 939 | inplace = savepv(s+1); |
79072805 LW |
940 | /*SUPPRESS 530*/ |
941 | for (s = inplace; *s && !isSPACE(*s); s++) ; | |
942 | *s = '\0'; | |
943 | break; | |
944 | case 'I': | |
463ee0b2 | 945 | taint_not("-I"); |
79072805 | 946 | if (*++s) { |
748a9306 LW |
947 | char *e; |
948 | for (e = s; *e && !isSPACE(*e); e++) ; | |
949 | av_push(GvAVn(incgv),newSVpv(s,e-s)); | |
950 | if (*e) | |
951 | return e; | |
79072805 LW |
952 | } |
953 | else | |
463ee0b2 | 954 | croak("No space allowed after -I"); |
79072805 LW |
955 | break; |
956 | case 'l': | |
957 | minus_l = TRUE; | |
958 | s++; | |
a0d0e21e LW |
959 | if (ors) |
960 | Safefree(ors); | |
79072805 | 961 | if (isDIGIT(*s)) { |
a0d0e21e | 962 | ors = savepv("\n"); |
79072805 LW |
963 | orslen = 1; |
964 | *ors = scan_oct(s, 3 + (*s == '0'), &numlen); | |
965 | s += numlen; | |
966 | } | |
967 | else { | |
a0d0e21e | 968 | ors = savepvn(nrs,nrslen); |
79072805 LW |
969 | orslen = nrslen; |
970 | } | |
971 | return s; | |
972 | case 'n': | |
973 | minus_n = TRUE; | |
974 | s++; | |
975 | return s; | |
976 | case 'p': | |
977 | minus_p = TRUE; | |
978 | s++; | |
979 | return s; | |
980 | case 's': | |
463ee0b2 | 981 | taint_not("-s"); |
79072805 LW |
982 | doswitches = TRUE; |
983 | s++; | |
984 | return s; | |
463ee0b2 LW |
985 | case 'T': |
986 | tainting = TRUE; | |
987 | s++; | |
988 | return s; | |
79072805 LW |
989 | case 'u': |
990 | do_undump = TRUE; | |
991 | s++; | |
992 | return s; | |
993 | case 'U': | |
994 | unsafe = TRUE; | |
995 | s++; | |
996 | return s; | |
997 | case 'v': | |
a0d0e21e | 998 | printf("\nThis is perl, version %s\n\n",patchlevel); |
8e07c86e | 999 | fputs("\tUnofficial patchlevel 1n.\n",stdout); |
a0d0e21e | 1000 | fputs("\nCopyright 1987-1994, Larry Wall\n",stdout); |
79072805 LW |
1001 | #ifdef MSDOS |
1002 | fputs("MS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n", | |
1003 | stdout); | |
1004 | #ifdef OS2 | |
1005 | fputs("OS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n", | |
1006 | stdout); | |
1007 | #endif | |
1008 | #endif | |
1009 | #ifdef atarist | |
1010 | fputs("atariST series port, ++jrb bammi@cadence.com\n", stdout); | |
1011 | #endif | |
1012 | fputs("\n\ | |
1013 | Perl may be copied only under the terms of either the Artistic License or the\n\ | |
1014 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n",stdout); | |
1015 | #ifdef MSDOS | |
1016 | usage(origargv[0]); | |
1017 | #endif | |
1018 | exit(0); | |
1019 | case 'w': | |
1020 | dowarn = TRUE; | |
1021 | s++; | |
1022 | return s; | |
a0d0e21e | 1023 | case '*': |
79072805 LW |
1024 | case ' ': |
1025 | if (s[1] == '-') /* Additional switches on #! line. */ | |
1026 | return s+2; | |
1027 | break; | |
a0d0e21e | 1028 | case '-': |
79072805 LW |
1029 | case 0: |
1030 | case '\n': | |
1031 | case '\t': | |
1032 | break; | |
a0d0e21e LW |
1033 | case 'P': |
1034 | if (preprocess) | |
1035 | return s+1; | |
1036 | /* FALL THROUGH */ | |
79072805 | 1037 | default: |
a0d0e21e | 1038 | croak("Can't emulate -%.1s on #! line",s); |
79072805 LW |
1039 | } |
1040 | return Nullch; | |
1041 | } | |
1042 | ||
1043 | /* compliments of Tom Christiansen */ | |
1044 | ||
1045 | /* unexec() can be found in the Gnu emacs distribution */ | |
1046 | ||
1047 | void | |
1048 | my_unexec() | |
1049 | { | |
1050 | #ifdef UNEXEC | |
1051 | int status; | |
1052 | extern int etext; | |
1053 | ||
1054 | sprintf (buf, "%s.perldump", origfilename); | |
1055 | sprintf (tokenbuf, "%s/perl", BIN); | |
1056 | ||
1057 | status = unexec(buf, tokenbuf, &etext, sbrk(0), 0); | |
1058 | if (status) | |
1059 | fprintf(stderr, "unexec of %s into %s failed!\n", tokenbuf, buf); | |
a0d0e21e | 1060 | exit(status); |
79072805 LW |
1061 | #else |
1062 | ABORT(); /* for use with undump */ | |
1063 | #endif | |
1064 | } | |
1065 | ||
1066 | static void | |
1067 | init_main_stash() | |
1068 | { | |
463ee0b2 LW |
1069 | GV *gv; |
1070 | curstash = defstash = newHV(); | |
79072805 | 1071 | curstname = newSVpv("main",4); |
adbc6bb1 LW |
1072 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
1073 | SvREFCNT_dec(GvHV(gv)); | |
1074 | GvHV(gv) = (HV*)SvREFCNT_inc(defstash); | |
463ee0b2 | 1075 | SvREADONLY_on(gv); |
a0d0e21e | 1076 | HvNAME(defstash) = savepv("main"); |
85e6fe83 | 1077 | incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); |
79072805 | 1078 | SvMULTI_on(incgv); |
a0d0e21e | 1079 | defgv = gv_fetchpv("_",TRUE, SVt_PVAV); |
8990e307 LW |
1080 | curstash = defstash; |
1081 | compiling.cop_stash = defstash; | |
adbc6bb1 | 1082 | debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); |
79072805 LW |
1083 | } |
1084 | ||
a0d0e21e LW |
1085 | #ifdef CAN_PROTOTYPE |
1086 | static void | |
1087 | open_script(char *scriptname, bool dosearch, SV *sv) | |
1088 | #else | |
79072805 LW |
1089 | static void |
1090 | open_script(scriptname,dosearch,sv) | |
1091 | char *scriptname; | |
1092 | bool dosearch; | |
1093 | SV *sv; | |
a0d0e21e | 1094 | #endif |
79072805 LW |
1095 | { |
1096 | char *xfound = Nullch; | |
1097 | char *xfailed = Nullch; | |
1098 | register char *s; | |
1099 | I32 len; | |
1100 | ||
93a17b20 | 1101 | if (dosearch && !strchr(scriptname, '/') && (s = getenv("PATH"))) { |
79072805 LW |
1102 | |
1103 | bufend = s + strlen(s); | |
1104 | while (*s) { | |
1105 | #ifndef DOSISH | |
1106 | s = cpytill(tokenbuf,s,bufend,':',&len); | |
1107 | #else | |
1108 | #ifdef atarist | |
1109 | for (len = 0; *s && *s != ',' && *s != ';'; tokenbuf[len++] = *s++); | |
1110 | tokenbuf[len] = '\0'; | |
1111 | #else | |
1112 | for (len = 0; *s && *s != ';'; tokenbuf[len++] = *s++); | |
1113 | tokenbuf[len] = '\0'; | |
1114 | #endif | |
1115 | #endif | |
1116 | if (*s) | |
1117 | s++; | |
1118 | #ifndef DOSISH | |
1119 | if (len && tokenbuf[len-1] != '/') | |
1120 | #else | |
1121 | #ifdef atarist | |
1122 | if (len && ((tokenbuf[len-1] != '\\') && (tokenbuf[len-1] != '/'))) | |
1123 | #else | |
1124 | if (len && tokenbuf[len-1] != '\\') | |
1125 | #endif | |
1126 | #endif | |
1127 | (void)strcat(tokenbuf+len,"/"); | |
1128 | (void)strcat(tokenbuf+len,scriptname); | |
1129 | DEBUG_p(fprintf(stderr,"Looking for %s\n",tokenbuf)); | |
a0d0e21e | 1130 | if (Stat(tokenbuf,&statbuf) < 0) /* not there? */ |
79072805 LW |
1131 | continue; |
1132 | if (S_ISREG(statbuf.st_mode) | |
1133 | && cando(S_IRUSR,TRUE,&statbuf) && cando(S_IXUSR,TRUE,&statbuf)) { | |
1134 | xfound = tokenbuf; /* bingo! */ | |
1135 | break; | |
1136 | } | |
1137 | if (!xfailed) | |
a0d0e21e | 1138 | xfailed = savepv(tokenbuf); |
79072805 LW |
1139 | } |
1140 | if (!xfound) | |
463ee0b2 | 1141 | croak("Can't execute %s", xfailed ? xfailed : scriptname ); |
79072805 LW |
1142 | if (xfailed) |
1143 | Safefree(xfailed); | |
1144 | scriptname = xfound; | |
1145 | } | |
1146 | ||
a0d0e21e | 1147 | origfilename = savepv(e_fp ? "-e" : scriptname); |
79072805 LW |
1148 | curcop->cop_filegv = gv_fetchfile(origfilename); |
1149 | if (strEQ(origfilename,"-")) | |
1150 | scriptname = ""; | |
1151 | if (preprocess) { | |
1152 | char *cpp = CPPSTDIN; | |
1153 | ||
1154 | if (strEQ(cpp,"cppstdin")) | |
1155 | sprintf(tokenbuf, "%s/%s", SCRIPTDIR, cpp); | |
1156 | else | |
1157 | sprintf(tokenbuf, "%s", cpp); | |
1158 | sv_catpv(sv,"-I"); | |
fed7345c | 1159 | sv_catpv(sv,PRIVLIB_EXP); |
79072805 LW |
1160 | #ifdef MSDOS |
1161 | (void)sprintf(buf, "\ | |
1162 | sed %s -e \"/^[^#]/b\" \ | |
1163 | -e \"/^#[ ]*include[ ]/b\" \ | |
1164 | -e \"/^#[ ]*define[ ]/b\" \ | |
1165 | -e \"/^#[ ]*if[ ]/b\" \ | |
1166 | -e \"/^#[ ]*ifdef[ ]/b\" \ | |
1167 | -e \"/^#[ ]*ifndef[ ]/b\" \ | |
1168 | -e \"/^#[ ]*else/b\" \ | |
1169 | -e \"/^#[ ]*elif[ ]/b\" \ | |
1170 | -e \"/^#[ ]*undef[ ]/b\" \ | |
1171 | -e \"/^#[ ]*endif/b\" \ | |
1172 | -e \"s/^#.*//\" \ | |
1173 | %s | %s -C %s %s", | |
1174 | (doextract ? "-e \"1,/^#/d\n\"" : ""), | |
1175 | #else | |
1176 | (void)sprintf(buf, "\ | |
1177 | %s %s -e '/^[^#]/b' \ | |
1178 | -e '/^#[ ]*include[ ]/b' \ | |
1179 | -e '/^#[ ]*define[ ]/b' \ | |
1180 | -e '/^#[ ]*if[ ]/b' \ | |
1181 | -e '/^#[ ]*ifdef[ ]/b' \ | |
1182 | -e '/^#[ ]*ifndef[ ]/b' \ | |
1183 | -e '/^#[ ]*else/b' \ | |
1184 | -e '/^#[ ]*elif[ ]/b' \ | |
1185 | -e '/^#[ ]*undef[ ]/b' \ | |
1186 | -e '/^#[ ]*endif/b' \ | |
1187 | -e 's/^[ ]*#.*//' \ | |
1188 | %s | %s -C %s %s", | |
1189 | #ifdef LOC_SED | |
1190 | LOC_SED, | |
1191 | #else | |
1192 | "sed", | |
1193 | #endif | |
1194 | (doextract ? "-e '1,/^#/d\n'" : ""), | |
1195 | #endif | |
463ee0b2 | 1196 | scriptname, tokenbuf, SvPV(sv, na), CPPMINUS); |
79072805 LW |
1197 | doextract = FALSE; |
1198 | #ifdef IAMSUID /* actually, this is caught earlier */ | |
1199 | if (euid != uid && !euid) { /* if running suidperl */ | |
1200 | #ifdef HAS_SETEUID | |
1201 | (void)seteuid(uid); /* musn't stay setuid root */ | |
1202 | #else | |
1203 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1204 | (void)setreuid((Uid_t)-1, uid); |
1205 | #else | |
1206 | #ifdef HAS_SETRESUID | |
1207 | (void)setresuid((Uid_t)-1, uid, (Uid_t)-1); | |
79072805 LW |
1208 | #else |
1209 | setuid(uid); | |
1210 | #endif | |
1211 | #endif | |
85e6fe83 | 1212 | #endif |
79072805 | 1213 | if (geteuid() != uid) |
463ee0b2 | 1214 | croak("Can't do seteuid!\n"); |
79072805 LW |
1215 | } |
1216 | #endif /* IAMSUID */ | |
1217 | rsfp = my_popen(buf,"r"); | |
1218 | } | |
1219 | else if (!*scriptname) { | |
463ee0b2 | 1220 | taint_not("program input from stdin"); |
79072805 LW |
1221 | rsfp = stdin; |
1222 | } | |
1223 | else | |
1224 | rsfp = fopen(scriptname,"r"); | |
45d8adaa | 1225 | if ((FILE*)rsfp == Nullfp) { |
13281fa4 | 1226 | #ifdef DOSUID |
a687059c | 1227 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
a0d0e21e | 1228 | if (euid && Stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 && |
13281fa4 | 1229 | statbuf.st_mode & (S_ISUID|S_ISGID)) { |
27e2fb84 | 1230 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c | 1231 | execv(buf, origargv); /* try again */ |
463ee0b2 | 1232 | croak("Can't do setuid\n"); |
13281fa4 LW |
1233 | } |
1234 | #endif | |
1235 | #endif | |
463ee0b2 | 1236 | croak("Can't open perl script \"%s\": %s\n", |
2304df62 | 1237 | SvPVX(GvSV(curcop->cop_filegv)), Strerror(errno)); |
13281fa4 | 1238 | } |
79072805 | 1239 | } |
8d063cd8 | 1240 | |
79072805 LW |
1241 | static void |
1242 | validate_suid(validarg) | |
1243 | char *validarg; | |
1244 | { | |
13281fa4 LW |
1245 | /* do we need to emulate setuid on scripts? */ |
1246 | ||
1247 | /* This code is for those BSD systems that have setuid #! scripts disabled | |
1248 | * in the kernel because of a security problem. Merely defining DOSUID | |
1249 | * in perl will not fix that problem, but if you have disabled setuid | |
1250 | * scripts in the kernel, this will attempt to emulate setuid and setgid | |
1251 | * on scripts that have those now-otherwise-useless bits set. The setuid | |
27e2fb84 LW |
1252 | * root version must be called suidperl or sperlN.NNN. If regular perl |
1253 | * discovers that it has opened a setuid script, it calls suidperl with | |
1254 | * the same argv that it had. If suidperl finds that the script it has | |
1255 | * just opened is NOT setuid root, it sets the effective uid back to the | |
1256 | * uid. We don't just make perl setuid root because that loses the | |
1257 | * effective uid we had before invoking perl, if it was different from the | |
1258 | * uid. | |
13281fa4 LW |
1259 | * |
1260 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must | |
1261 | * be defined in suidperl only. suidperl must be setuid root. The | |
1262 | * Configure script will set this up for you if you want it. | |
1263 | */ | |
a687059c | 1264 | |
13281fa4 | 1265 | #ifdef DOSUID |
a0d0e21e LW |
1266 | char *s; |
1267 | ||
1268 | if (Fstat(fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */ | |
463ee0b2 | 1269 | croak("Can't stat script \"%s\"",origfilename); |
13281fa4 | 1270 | if (statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 | 1271 | I32 len; |
13281fa4 | 1272 | |
a687059c | 1273 | #ifdef IAMSUID |
fe14fcc3 | 1274 | #ifndef HAS_SETREUID |
a687059c LW |
1275 | /* On this access check to make sure the directories are readable, |
1276 | * there is actually a small window that the user could use to make | |
1277 | * filename point to an accessible directory. So there is a faint | |
1278 | * chance that someone could execute a setuid script down in a | |
1279 | * non-accessible directory. I don't know what to do about that. | |
1280 | * But I don't think it's too important. The manual lies when | |
1281 | * it says access() is useful in setuid programs. | |
1282 | */ | |
463ee0b2 LW |
1283 | if (access(SvPVX(GvSV(curcop->cop_filegv)),1)) /*double check*/ |
1284 | croak("Permission denied"); | |
a687059c LW |
1285 | #else |
1286 | /* If we can swap euid and uid, then we can determine access rights | |
1287 | * with a simple stat of the file, and then compare device and | |
1288 | * inode to make sure we did stat() on the same file we opened. | |
1289 | * Then we just have to make sure he or she can execute it. | |
1290 | */ | |
1291 | { | |
1292 | struct stat tmpstatbuf; | |
1293 | ||
85e6fe83 LW |
1294 | if ( |
1295 | #ifdef HAS_SETREUID | |
1296 | setreuid(euid,uid) < 0 | |
a0d0e21e LW |
1297 | #else |
1298 | # if HAS_SETRESUID | |
85e6fe83 | 1299 | setresuid(euid,uid,(Uid_t)-1) < 0 |
a0d0e21e | 1300 | # endif |
85e6fe83 LW |
1301 | #endif |
1302 | || getuid() != euid || geteuid() != uid) | |
463ee0b2 | 1303 | croak("Can't swap uid and euid"); /* really paranoid */ |
a0d0e21e | 1304 | if (Stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0) |
463ee0b2 | 1305 | croak("Permission denied"); /* testing full pathname here */ |
a687059c LW |
1306 | if (tmpstatbuf.st_dev != statbuf.st_dev || |
1307 | tmpstatbuf.st_ino != statbuf.st_ino) { | |
1308 | (void)fclose(rsfp); | |
79072805 | 1309 | if (rsfp = my_popen("/bin/mail root","w")) { /* heh, heh */ |
a687059c LW |
1310 | fprintf(rsfp, |
1311 | "User %d tried to run dev %d ino %d in place of dev %d ino %d!\n\ | |
1312 | (Filename of set-id script was %s, uid %d gid %d.)\n\nSincerely,\nperl\n", | |
1313 | uid,tmpstatbuf.st_dev, tmpstatbuf.st_ino, | |
1314 | statbuf.st_dev, statbuf.st_ino, | |
463ee0b2 | 1315 | SvPVX(GvSV(curcop->cop_filegv)), |
20188a90 | 1316 | statbuf.st_uid, statbuf.st_gid); |
79072805 | 1317 | (void)my_pclose(rsfp); |
a687059c | 1318 | } |
463ee0b2 | 1319 | croak("Permission denied\n"); |
a687059c | 1320 | } |
85e6fe83 LW |
1321 | if ( |
1322 | #ifdef HAS_SETREUID | |
1323 | setreuid(uid,euid) < 0 | |
a0d0e21e LW |
1324 | #else |
1325 | # if defined(HAS_SETRESUID) | |
85e6fe83 | 1326 | setresuid(uid,euid,(Uid_t)-1) < 0 |
a0d0e21e | 1327 | # endif |
85e6fe83 LW |
1328 | #endif |
1329 | || getuid() != uid || geteuid() != euid) | |
463ee0b2 | 1330 | croak("Can't reswap uid and euid"); |
27e2fb84 | 1331 | if (!cando(S_IXUSR,FALSE,&statbuf)) /* can real uid exec? */ |
463ee0b2 | 1332 | croak("Permission denied\n"); |
a687059c | 1333 | } |
fe14fcc3 | 1334 | #endif /* HAS_SETREUID */ |
a687059c LW |
1335 | #endif /* IAMSUID */ |
1336 | ||
27e2fb84 | 1337 | if (!S_ISREG(statbuf.st_mode)) |
463ee0b2 | 1338 | croak("Permission denied"); |
27e2fb84 | 1339 | if (statbuf.st_mode & S_IWOTH) |
463ee0b2 | 1340 | croak("Setuid/gid script is writable by world"); |
13281fa4 | 1341 | doswitches = FALSE; /* -s is insecure in suid */ |
79072805 | 1342 | curcop->cop_line++; |
13281fa4 LW |
1343 | if (fgets(tokenbuf,sizeof tokenbuf, rsfp) == Nullch || |
1344 | strnNE(tokenbuf,"#!",2) ) /* required even on Sys V */ | |
463ee0b2 | 1345 | croak("No #! line"); |
663a0e37 LW |
1346 | s = tokenbuf+2; |
1347 | if (*s == ' ') s++; | |
45d8adaa | 1348 | while (!isSPACE(*s)) s++; |
27e2fb84 | 1349 | if (strnNE(s-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ |
463ee0b2 | 1350 | croak("Not a perl script"); |
a687059c | 1351 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 LW |
1352 | /* |
1353 | * #! arg must be what we saw above. They can invoke it by | |
1354 | * mentioning suidperl explicitly, but they may not add any strange | |
1355 | * arguments beyond what #! says if they do invoke suidperl that way. | |
1356 | */ | |
1357 | len = strlen(validarg); | |
1358 | if (strEQ(validarg," PHOOEY ") || | |
45d8adaa | 1359 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
463ee0b2 | 1360 | croak("Args must match #! line"); |
a687059c LW |
1361 | |
1362 | #ifndef IAMSUID | |
1363 | if (euid != uid && (statbuf.st_mode & S_ISUID) && | |
1364 | euid == statbuf.st_uid) | |
1365 | if (!do_undump) | |
463ee0b2 | 1366 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
1367 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1368 | #endif /* IAMSUID */ | |
13281fa4 LW |
1369 | |
1370 | if (euid) { /* oops, we're not the setuid root perl */ | |
a687059c | 1371 | (void)fclose(rsfp); |
13281fa4 | 1372 | #ifndef IAMSUID |
27e2fb84 | 1373 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c | 1374 | execv(buf, origargv); /* try again */ |
13281fa4 | 1375 | #endif |
463ee0b2 | 1376 | croak("Can't do setuid\n"); |
13281fa4 LW |
1377 | } |
1378 | ||
83025b21 | 1379 | if (statbuf.st_mode & S_ISGID && statbuf.st_gid != egid) { |
fe14fcc3 | 1380 | #ifdef HAS_SETEGID |
a687059c LW |
1381 | (void)setegid(statbuf.st_gid); |
1382 | #else | |
fe14fcc3 | 1383 | #ifdef HAS_SETREGID |
85e6fe83 LW |
1384 | (void)setregid((Gid_t)-1,statbuf.st_gid); |
1385 | #else | |
1386 | #ifdef HAS_SETRESGID | |
1387 | (void)setresgid((Gid_t)-1,statbuf.st_gid,(Gid_t)-1); | |
a687059c LW |
1388 | #else |
1389 | setgid(statbuf.st_gid); | |
1390 | #endif | |
1391 | #endif | |
85e6fe83 | 1392 | #endif |
83025b21 | 1393 | if (getegid() != statbuf.st_gid) |
463ee0b2 | 1394 | croak("Can't do setegid!\n"); |
83025b21 | 1395 | } |
a687059c LW |
1396 | if (statbuf.st_mode & S_ISUID) { |
1397 | if (statbuf.st_uid != euid) | |
fe14fcc3 | 1398 | #ifdef HAS_SETEUID |
a687059c LW |
1399 | (void)seteuid(statbuf.st_uid); /* all that for this */ |
1400 | #else | |
fe14fcc3 | 1401 | #ifdef HAS_SETREUID |
85e6fe83 LW |
1402 | (void)setreuid((Uid_t)-1,statbuf.st_uid); |
1403 | #else | |
1404 | #ifdef HAS_SETRESUID | |
1405 | (void)setresuid((Uid_t)-1,statbuf.st_uid,(Uid_t)-1); | |
a687059c LW |
1406 | #else |
1407 | setuid(statbuf.st_uid); | |
1408 | #endif | |
1409 | #endif | |
85e6fe83 | 1410 | #endif |
83025b21 | 1411 | if (geteuid() != statbuf.st_uid) |
463ee0b2 | 1412 | croak("Can't do seteuid!\n"); |
a687059c | 1413 | } |
83025b21 | 1414 | else if (uid) { /* oops, mustn't run as root */ |
fe14fcc3 | 1415 | #ifdef HAS_SETEUID |
85e6fe83 | 1416 | (void)seteuid((Uid_t)uid); |
a687059c | 1417 | #else |
fe14fcc3 | 1418 | #ifdef HAS_SETREUID |
85e6fe83 | 1419 | (void)setreuid((Uid_t)-1,(Uid_t)uid); |
a687059c | 1420 | #else |
85e6fe83 LW |
1421 | #ifdef HAS_SETRESUID |
1422 | (void)setresuid((Uid_t)-1,(Uid_t)uid,(Uid_t)-1); | |
1423 | #else | |
1424 | setuid((Uid_t)uid); | |
1425 | #endif | |
a687059c LW |
1426 | #endif |
1427 | #endif | |
83025b21 | 1428 | if (geteuid() != uid) |
463ee0b2 | 1429 | croak("Can't do seteuid!\n"); |
83025b21 | 1430 | } |
748a9306 | 1431 | init_ids(); |
27e2fb84 | 1432 | if (!cando(S_IXUSR,TRUE,&statbuf)) |
463ee0b2 | 1433 | croak("Permission denied\n"); /* they can't do this */ |
13281fa4 LW |
1434 | } |
1435 | #ifdef IAMSUID | |
1436 | else if (preprocess) | |
463ee0b2 | 1437 | croak("-P not allowed for setuid/setgid script\n"); |
13281fa4 | 1438 | else |
463ee0b2 | 1439 | croak("Script is not setuid/setgid in suidperl\n"); |
13281fa4 | 1440 | #endif /* IAMSUID */ |
a687059c | 1441 | #else /* !DOSUID */ |
a687059c LW |
1442 | if (euid != uid || egid != gid) { /* (suidperl doesn't exist, in fact) */ |
1443 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW | |
a0d0e21e | 1444 | Fstat(fileno(rsfp),&statbuf); /* may be either wrapped or real suid */ |
a687059c LW |
1445 | if ((euid != uid && euid == statbuf.st_uid && statbuf.st_mode & S_ISUID) |
1446 | || | |
1447 | (egid != gid && egid == statbuf.st_gid && statbuf.st_mode & S_ISGID) | |
1448 | ) | |
1449 | if (!do_undump) | |
463ee0b2 | 1450 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
1451 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1452 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ | |
1453 | /* not set-id, must be wrapped */ | |
a687059c | 1454 | } |
13281fa4 | 1455 | #endif /* DOSUID */ |
79072805 | 1456 | } |
13281fa4 | 1457 | |
79072805 LW |
1458 | static void |
1459 | find_beginning() | |
1460 | { | |
79072805 | 1461 | register char *s; |
33b78306 LW |
1462 | |
1463 | /* skip forward in input to the real script? */ | |
1464 | ||
463ee0b2 | 1465 | taint_not("-x"); |
33b78306 | 1466 | while (doextract) { |
79072805 | 1467 | if ((s = sv_gets(linestr, rsfp, 0)) == Nullch) |
463ee0b2 | 1468 | croak("No Perl script found in input\n"); |
33b78306 LW |
1469 | if (*s == '#' && s[1] == '!' && instr(s,"perl")) { |
1470 | ungetc('\n',rsfp); /* to keep line count right */ | |
1471 | doextract = FALSE; | |
1472 | if (s = instr(s,"perl -")) { | |
1473 | s += 6; | |
45d8adaa | 1474 | /*SUPPRESS 530*/ |
33b78306 LW |
1475 | while (s = moreswitches(s)) ; |
1476 | } | |
79072805 | 1477 | if (cddir && chdir(cddir) < 0) |
463ee0b2 | 1478 | croak("Can't chdir to %s",cddir); |
83025b21 LW |
1479 | } |
1480 | } | |
1481 | } | |
1482 | ||
79072805 | 1483 | static void |
748a9306 | 1484 | init_ids() |
352d5a3a | 1485 | { |
748a9306 LW |
1486 | uid = (int)getuid(); |
1487 | euid = (int)geteuid(); | |
1488 | gid = (int)getgid(); | |
1489 | egid = (int)getegid(); | |
1490 | #ifdef VMS | |
1491 | uid |= gid << 16; | |
1492 | euid |= egid << 16; | |
1493 | #endif | |
1494 | tainting |= (euid != uid || egid != gid); | |
1495 | } | |
79072805 | 1496 | |
748a9306 LW |
1497 | static void |
1498 | init_debugger() | |
1499 | { | |
79072805 | 1500 | curstash = debstash; |
748a9306 | 1501 | dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); |
79072805 | 1502 | AvREAL_off(dbargs); |
a0d0e21e LW |
1503 | DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); |
1504 | DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); | |
748a9306 LW |
1505 | DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); |
1506 | DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); | |
1507 | DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); | |
1508 | DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); | |
79072805 | 1509 | curstash = defstash; |
352d5a3a LW |
1510 | } |
1511 | ||
79072805 | 1512 | static void |
8990e307 | 1513 | init_stacks() |
79072805 LW |
1514 | { |
1515 | stack = newAV(); | |
1516 | mainstack = stack; /* remember in case we switch stacks */ | |
1517 | AvREAL_off(stack); /* not a real array */ | |
a0d0e21e | 1518 | av_extend(stack,127); |
79072805 LW |
1519 | |
1520 | stack_base = AvARRAY(stack); | |
1521 | stack_sp = stack_base; | |
8990e307 | 1522 | stack_max = stack_base + 127; |
79072805 | 1523 | |
a0d0e21e | 1524 | New(54,markstack,64,I32); |
79072805 LW |
1525 | markstack_ptr = markstack; |
1526 | markstack_max = markstack + 64; | |
1527 | ||
a0d0e21e | 1528 | New(54,scopestack,32,I32); |
79072805 LW |
1529 | scopestack_ix = 0; |
1530 | scopestack_max = 32; | |
1531 | ||
1532 | New(54,savestack,128,ANY); | |
1533 | savestack_ix = 0; | |
1534 | savestack_max = 128; | |
1535 | ||
1536 | New(54,retstack,16,OP*); | |
1537 | retstack_ix = 0; | |
1538 | retstack_max = 16; | |
8d063cd8 | 1539 | |
79072805 | 1540 | New(50,cxstack,128,CONTEXT); |
8990e307 LW |
1541 | cxstack_ix = -1; |
1542 | cxstack_max = 128; | |
1543 | ||
1544 | New(50,tmps_stack,128,SV*); | |
1545 | tmps_ix = -1; | |
1546 | tmps_max = 128; | |
1547 | ||
79072805 LW |
1548 | DEBUG( { |
1549 | New(51,debname,128,char); | |
1550 | New(52,debdelim,128,char); | |
1551 | } ) | |
378cc40b | 1552 | } |
33b78306 | 1553 | |
a0d0e21e | 1554 | static FILE *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
79072805 | 1555 | static void |
8990e307 LW |
1556 | init_lexer() |
1557 | { | |
a0d0e21e | 1558 | tmpfp = rsfp; |
8990e307 LW |
1559 | |
1560 | lex_start(linestr); | |
1561 | rsfp = tmpfp; | |
1562 | subname = newSVpv("main",4); | |
1563 | } | |
1564 | ||
1565 | static void | |
79072805 | 1566 | init_predump_symbols() |
45d8adaa | 1567 | { |
93a17b20 | 1568 | GV *tmpgv; |
a0d0e21e | 1569 | GV *othergv; |
79072805 | 1570 | |
85e6fe83 | 1571 | sv_setpvn(GvSV(gv_fetchpv("\"", TRUE, SVt_PV)), " ", 1); |
79072805 | 1572 | |
85e6fe83 | 1573 | stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
79072805 | 1574 | SvMULTI_on(stdingv); |
a0d0e21e | 1575 | IoIFP(GvIOp(stdingv)) = stdin; |
adbc6bb1 | 1576 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a0d0e21e | 1577 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(stdingv)); |
79072805 LW |
1578 | SvMULTI_on(tmpgv); |
1579 | ||
85e6fe83 | 1580 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
79072805 | 1581 | SvMULTI_on(tmpgv); |
a0d0e21e | 1582 | IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = stdout; |
79072805 | 1583 | defoutgv = tmpgv; |
adbc6bb1 | 1584 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a0d0e21e | 1585 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(defoutgv)); |
79072805 LW |
1586 | SvMULTI_on(tmpgv); |
1587 | ||
a0d0e21e LW |
1588 | othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
1589 | SvMULTI_on(othergv); | |
1590 | IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = stderr; | |
adbc6bb1 | 1591 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a0d0e21e | 1592 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv)); |
79072805 | 1593 | SvMULTI_on(tmpgv); |
79072805 LW |
1594 | |
1595 | statname = NEWSV(66,0); /* last filename we did stat on */ | |
79072805 | 1596 | } |
33b78306 | 1597 | |
79072805 LW |
1598 | static void |
1599 | init_postdump_symbols(argc,argv,env) | |
1600 | register int argc; | |
1601 | register char **argv; | |
1602 | register char **env; | |
33b78306 | 1603 | { |
79072805 LW |
1604 | char *s; |
1605 | SV *sv; | |
1606 | GV* tmpgv; | |
fe14fcc3 | 1607 | |
79072805 LW |
1608 | argc--,argv++; /* skip name of script */ |
1609 | if (doswitches) { | |
1610 | for (; argc > 0 && **argv == '-'; argc--,argv++) { | |
1611 | if (!argv[0][1]) | |
1612 | break; | |
1613 | if (argv[0][1] == '-') { | |
1614 | argc--,argv++; | |
1615 | break; | |
1616 | } | |
93a17b20 | 1617 | if (s = strchr(argv[0], '=')) { |
79072805 | 1618 | *s++ = '\0'; |
85e6fe83 | 1619 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 LW |
1620 | } |
1621 | else | |
85e6fe83 | 1622 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 | 1623 | } |
79072805 LW |
1624 | } |
1625 | toptarget = NEWSV(0,0); | |
1626 | sv_upgrade(toptarget, SVt_PVFM); | |
1627 | sv_setpvn(toptarget, "", 0); | |
748a9306 | 1628 | bodytarget = NEWSV(0,0); |
79072805 LW |
1629 | sv_upgrade(bodytarget, SVt_PVFM); |
1630 | sv_setpvn(bodytarget, "", 0); | |
1631 | formtarget = bodytarget; | |
1632 | ||
79072805 | 1633 | tainted = 1; |
85e6fe83 | 1634 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
79072805 LW |
1635 | sv_setpv(GvSV(tmpgv),origfilename); |
1636 | magicname("0", "0", 1); | |
1637 | } | |
85e6fe83 | 1638 | if (tmpgv = gv_fetchpv("\024",TRUE, SVt_PV)) |
79072805 | 1639 | time(&basetime); |
85e6fe83 | 1640 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
79072805 | 1641 | sv_setpv(GvSV(tmpgv),origargv[0]); |
85e6fe83 | 1642 | if (argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { |
79072805 LW |
1643 | SvMULTI_on(argvgv); |
1644 | (void)gv_AVadd(argvgv); | |
1645 | av_clear(GvAVn(argvgv)); | |
1646 | for (; argc > 0; argc--,argv++) { | |
a0d0e21e | 1647 | av_push(GvAVn(argvgv),newSVpv(argv[0],0)); |
79072805 LW |
1648 | } |
1649 | } | |
85e6fe83 | 1650 | if (envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 LW |
1651 | HV *hv; |
1652 | SvMULTI_on(envgv); | |
1653 | hv = GvHVn(envgv); | |
463ee0b2 | 1654 | hv_clear(hv); |
a0d0e21e | 1655 | #ifndef VMS /* VMS doesn't have environ array */ |
8990e307 | 1656 | if (env != environ) { |
79072805 | 1657 | environ[0] = Nullch; |
8990e307 LW |
1658 | hv_magic(hv, envgv, 'E'); |
1659 | } | |
a0d0e21e LW |
1660 | #endif |
1661 | #ifdef DYNAMIC_ENV_FETCH | |
1662 | HvNAME(hv) = savepv(ENV_HV_NAME); | |
1663 | #endif | |
79072805 | 1664 | for (; *env; env++) { |
93a17b20 | 1665 | if (!(s = strchr(*env,'='))) |
79072805 LW |
1666 | continue; |
1667 | *s++ = '\0'; | |
1668 | sv = newSVpv(s--,0); | |
85e6fe83 | 1669 | sv_magic(sv, sv, 'e', *env, s - *env); |
79072805 LW |
1670 | (void)hv_store(hv, *env, s - *env, sv, 0); |
1671 | *s = '='; | |
fe14fcc3 | 1672 | } |
f511e57f | 1673 | hv_magic(hv, envgv, 'E'); |
79072805 | 1674 | } |
79072805 | 1675 | tainted = 0; |
85e6fe83 | 1676 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
79072805 LW |
1677 | sv_setiv(GvSV(tmpgv),(I32)getpid()); |
1678 | ||
33b78306 | 1679 | } |
34de22dd | 1680 | |
79072805 LW |
1681 | static void |
1682 | init_perllib() | |
34de22dd | 1683 | { |
85e6fe83 LW |
1684 | char *s; |
1685 | if (!tainting) { | |
1686 | s = getenv("PERL5LIB"); | |
1687 | if (s) | |
1688 | incpush(s); | |
1689 | else | |
1690 | incpush(getenv("PERLLIB")); | |
1691 | } | |
34de22dd | 1692 | |
16d20bd9 AD |
1693 | #ifdef SITELIB_EXP |
1694 | incpush(SITELIB_EXP); | |
1695 | #endif | |
fed7345c AD |
1696 | #ifdef ARCHLIB_EXP |
1697 | incpush(ARCHLIB_EXP); | |
a0d0e21e | 1698 | #endif |
fed7345c AD |
1699 | #ifndef PRIVLIB_EXP |
1700 | #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" | |
34de22dd | 1701 | #endif |
fed7345c | 1702 | incpush(PRIVLIB_EXP); |
a0d0e21e LW |
1703 | |
1704 | av_push(GvAVn(incgv),newSVpv(".",1)); | |
34de22dd | 1705 | } |
93a17b20 LW |
1706 | |
1707 | void | |
1708 | calllist(list) | |
1709 | AV* list; | |
1710 | { | |
93a17b20 | 1711 | jmp_buf oldtop; |
a0d0e21e LW |
1712 | STRLEN len; |
1713 | line_t oldline = curcop->cop_line; | |
93a17b20 | 1714 | |
93a17b20 LW |
1715 | Copy(top_env, oldtop, 1, jmp_buf); |
1716 | ||
8990e307 LW |
1717 | while (AvFILL(list) >= 0) { |
1718 | CV *cv = (CV*)av_shift(list); | |
93a17b20 | 1719 | |
8990e307 | 1720 | SAVEFREESV(cv); |
a0d0e21e | 1721 | |
85e6fe83 | 1722 | switch (setjmp(top_env)) { |
748a9306 LW |
1723 | case 0: { |
1724 | SV* atsv = GvSV(gv_fetchpv("@",TRUE, SVt_PV)); | |
1725 | PUSHMARK(stack_sp); | |
1726 | perl_call_sv((SV*)cv, G_EVAL|G_DISCARD); | |
1727 | (void)SvPV(atsv, len); | |
1728 | if (len) { | |
1729 | Copy(oldtop, top_env, 1, jmp_buf); | |
1730 | curcop = &compiling; | |
1731 | curcop->cop_line = oldline; | |
1732 | if (list == beginav) | |
1733 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); | |
1734 | else | |
1735 | sv_catpv(atsv, "END failed--cleanup aborted"); | |
1736 | croak("%s", SvPVX(atsv)); | |
1737 | } | |
a0d0e21e | 1738 | } |
85e6fe83 LW |
1739 | break; |
1740 | case 1: | |
748a9306 | 1741 | #ifdef VMS |
85e6fe83 | 1742 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 LW |
1743 | #else |
1744 | statusvalue = 1; | |
1745 | #endif | |
85e6fe83 LW |
1746 | /* FALL THROUGH */ |
1747 | case 2: | |
1748 | /* my_exit() was called */ | |
1749 | curstash = defstash; | |
1750 | if (endav) | |
1751 | calllist(endav); | |
a0d0e21e LW |
1752 | FREETMPS; |
1753 | Copy(oldtop, top_env, 1, jmp_buf); | |
1754 | curcop = &compiling; | |
1755 | curcop->cop_line = oldline; | |
85e6fe83 LW |
1756 | if (statusvalue) { |
1757 | if (list == beginav) | |
a0d0e21e | 1758 | croak("BEGIN failed--compilation aborted"); |
85e6fe83 | 1759 | else |
a0d0e21e | 1760 | croak("END failed--cleanup aborted"); |
85e6fe83 | 1761 | } |
85e6fe83 LW |
1762 | my_exit(statusvalue); |
1763 | /* NOTREACHED */ | |
1764 | return; | |
1765 | case 3: | |
1766 | if (!restartop) { | |
1767 | fprintf(stderr, "panic: restartop\n"); | |
a0d0e21e | 1768 | FREETMPS; |
85e6fe83 LW |
1769 | break; |
1770 | } | |
a0d0e21e LW |
1771 | Copy(oldtop, top_env, 1, jmp_buf); |
1772 | curcop = &compiling; | |
1773 | curcop->cop_line = oldline; | |
1774 | longjmp(top_env, 3); | |
8990e307 | 1775 | } |
93a17b20 LW |
1776 | } |
1777 | ||
1778 | Copy(oldtop, top_env, 1, jmp_buf); | |
1779 | } | |
1780 |