Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* perl.c |
2 | * | |
1a30305b | 3 | * Copyright (c) 1987-1996 Larry Wall |
a687059c | 4 | * |
352d5a3a LW |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. | |
a687059c | 7 | * |
8d063cd8 LW |
8 | */ |
9 | ||
a0d0e21e LW |
10 | /* |
11 | * "A ship then new they built for him/of mithril and of elven glass" --Bilbo | |
12 | */ | |
45d8adaa | 13 | |
378cc40b LW |
14 | #include "EXTERN.h" |
15 | #include "perl.h" | |
a687059c | 16 | #include "patchlevel.h" |
378cc40b | 17 | |
a0d0e21e LW |
18 | /* Omit -- it causes too much grief on mixed systems. |
19 | #ifdef I_UNISTD | |
20 | #include <unistd.h> | |
21 | #endif | |
22 | */ | |
23 | ||
4633a7c4 | 24 | dEXT char rcsid[] = "perl.c\nPatch level: ###\n"; |
463ee0b2 | 25 | |
a687059c LW |
26 | #ifdef IAMSUID |
27 | #ifndef DOSUID | |
28 | #define DOSUID | |
29 | #endif | |
30 | #endif | |
378cc40b | 31 | |
a687059c LW |
32 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
33 | #ifdef DOSUID | |
34 | #undef DOSUID | |
35 | #endif | |
36 | #endif | |
8d063cd8 | 37 | |
a0d0e21e LW |
38 | static void find_beginning _((void)); |
39 | static void incpush _((char *)); | |
748a9306 | 40 | static void init_ids _((void)); |
a0d0e21e LW |
41 | static void init_debugger _((void)); |
42 | static void init_lexer _((void)); | |
43 | static void init_main_stash _((void)); | |
44 | static void init_perllib _((void)); | |
45 | static void init_postdump_symbols _((int, char **, char **)); | |
46 | static void init_predump_symbols _((void)); | |
47 | static void init_stacks _((void)); | |
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 LW |
79 | |
80 | SvREADONLY_on(&sv_undef); | |
81 | ||
82 | sv_setpv(&sv_no,No); | |
463ee0b2 | 83 | SvNV(&sv_no); |
79072805 LW |
84 | SvREADONLY_on(&sv_no); |
85 | ||
86 | sv_setpv(&sv_yes,Yes); | |
463ee0b2 | 87 | SvNV(&sv_yes); |
79072805 LW |
88 | SvREADONLY_on(&sv_yes); |
89 | ||
c07a80fd | 90 | nrs = newSVpv("\n", 1); |
91 | rs = SvREFCNT_inc(nrs); | |
92 | ||
79072805 LW |
93 | #ifdef MSDOS |
94 | /* | |
95 | * There is no way we can refer to them from Perl so close them to save | |
96 | * space. The other alternative would be to provide STDAUX and STDPRN | |
97 | * filehandles. | |
98 | */ | |
99 | (void)fclose(stdaux); | |
100 | (void)fclose(stdprn); | |
101 | #endif | |
102 | } | |
103 | ||
8990e307 | 104 | #ifdef MULTIPLICITY |
79072805 | 105 | chopset = " \n-"; |
463ee0b2 | 106 | copline = NOLINE; |
79072805 | 107 | curcop = &compiling; |
1a30305b | 108 | dbargs = 0; |
79072805 LW |
109 | dlmax = 128; |
110 | laststatval = -1; | |
111 | laststype = OP_STAT; | |
112 | maxscream = -1; | |
113 | maxsysfd = MAXSYSFD; | |
79072805 | 114 | rsfp = Nullfp; |
463ee0b2 | 115 | statname = Nullsv; |
79072805 | 116 | tmps_floor = -1; |
79072805 LW |
117 | #endif |
118 | ||
748a9306 | 119 | init_ids(); |
a5f75d66 AD |
120 | |
121 | #if defined(SUBVERSION) && SUBVERSION > 0 | |
122 | sprintf(patchlevel, "%7.5f", 5.0 + (PATCHLEVEL / 1000.0) | |
123 | + (SUBVERSION / 100000.0)); | |
124 | #else | |
a0d0e21e | 125 | sprintf(patchlevel, "%5.3f", 5.0 + (PATCHLEVEL / 1000.0)); |
a5f75d66 | 126 | #endif |
79072805 | 127 | |
ab821d7f | 128 | #if defined(LOCAL_PATCH_COUNT) |
129 | Ilocalpatches = local_patches; /* For possible -v */ | |
130 | #endif | |
131 | ||
79072805 | 132 | fdpid = newAV(); /* for remembering popen pids by fd */ |
463ee0b2 | 133 | pidstatus = newHV();/* for remembering status of dead pids */ |
8990e307 LW |
134 | |
135 | init_stacks(); | |
136 | ENTER; | |
79072805 LW |
137 | } |
138 | ||
139 | void | |
748a9306 | 140 | perl_destruct(sv_interp) |
93a17b20 | 141 | register PerlInterpreter *sv_interp; |
79072805 | 142 | { |
748a9306 | 143 | int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
8990e307 | 144 | I32 last_sv_count; |
a0d0e21e | 145 | HV *hv; |
8990e307 | 146 | |
79072805 LW |
147 | if (!(curinterp = sv_interp)) |
148 | return; | |
748a9306 LW |
149 | |
150 | destruct_level = perl_destruct_level; | |
4633a7c4 LW |
151 | #ifdef DEBUGGING |
152 | { | |
153 | char *s; | |
154 | if (s = getenv("PERL_DESTRUCT_LEVEL")) | |
155 | destruct_level = atoi(s); | |
156 | } | |
157 | #endif | |
158 | ||
8990e307 | 159 | LEAVE; |
a0d0e21e LW |
160 | FREETMPS; |
161 | ||
162 | if (sv_objcount) { | |
163 | /* We must account for everything. First the syntax tree. */ | |
164 | if (main_root) { | |
165 | curpad = AvARRAY(comppad); | |
166 | op_free(main_root); | |
167 | main_root = 0; | |
168 | } | |
169 | } | |
170 | if (sv_objcount) { | |
171 | /* | |
172 | * Try to destruct global references. We do this first so that the | |
173 | * destructors and destructees still exist. Some sv's might remain. | |
174 | * Non-referenced objects are on their own. | |
175 | */ | |
176 | ||
177 | dirty = TRUE; | |
178 | sv_clean_objs(); | |
8990e307 LW |
179 | } |
180 | ||
a0d0e21e | 181 | if (destruct_level == 0){ |
8990e307 | 182 | |
a0d0e21e LW |
183 | DEBUG_P(debprofdump()); |
184 | ||
185 | /* The exit() function will do everything that needs doing. */ | |
186 | return; | |
187 | } | |
188 | ||
189 | /* Prepare to destruct main symbol table. */ | |
190 | hv = defstash; | |
85e6fe83 | 191 | defstash = 0; |
a0d0e21e LW |
192 | SvREFCNT_dec(hv); |
193 | ||
194 | FREETMPS; | |
195 | if (destruct_level >= 2) { | |
196 | if (scopestack_ix != 0) | |
197 | warn("Unbalanced scopes: %d more ENTERs than LEAVEs\n", scopestack_ix); | |
198 | if (savestack_ix != 0) | |
199 | warn("Unbalanced saves: %d more saves than restores\n", savestack_ix); | |
200 | if (tmps_floor != -1) | |
201 | warn("Unbalanced tmps: %d more allocs than frees\n", tmps_floor + 1); | |
202 | if (cxstack_ix != -1) | |
203 | warn("Unbalanced context: %d more PUSHes than POPs\n", cxstack_ix + 1); | |
204 | } | |
8990e307 LW |
205 | |
206 | /* Now absolutely destruct everything, somehow or other, loops or no. */ | |
8990e307 LW |
207 | last_sv_count = 0; |
208 | while (sv_count != 0 && sv_count != last_sv_count) { | |
209 | last_sv_count = sv_count; | |
210 | sv_clean_all(); | |
211 | } | |
212 | if (sv_count != 0) | |
213 | warn("Scalars leaked: %d\n", sv_count); | |
4633a7c4 | 214 | sv_free_arenas(); |
a0d0e21e LW |
215 | |
216 | DEBUG_P(debprofdump()); | |
79072805 LW |
217 | } |
218 | ||
219 | void | |
220 | perl_free(sv_interp) | |
93a17b20 | 221 | PerlInterpreter *sv_interp; |
79072805 LW |
222 | { |
223 | if (!(curinterp = sv_interp)) | |
224 | return; | |
225 | Safefree(sv_interp); | |
226 | } | |
ecfc5424 | 227 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) |
a0d0e21e LW |
228 | char *getenv _((char *)); /* Usually in <stdlib.h> */ |
229 | #endif | |
79072805 LW |
230 | |
231 | int | |
a0d0e21e | 232 | perl_parse(sv_interp, xsinit, argc, argv, env) |
93a17b20 | 233 | PerlInterpreter *sv_interp; |
a0d0e21e LW |
234 | void (*xsinit)_((void)); |
235 | int argc; | |
236 | char **argv; | |
79072805 | 237 | char **env; |
8d063cd8 | 238 | { |
79072805 | 239 | register SV *sv; |
8d063cd8 | 240 | register char *s; |
1a30305b | 241 | char *scriptname = NULL; |
a0d0e21e | 242 | VOL bool dosearch = FALSE; |
13281fa4 | 243 | char *validarg = ""; |
748a9306 | 244 | AV* comppadlist; |
8d063cd8 | 245 | |
a687059c LW |
246 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
247 | #ifdef IAMSUID | |
248 | #undef IAMSUID | |
463ee0b2 | 249 | croak("suidperl is no longer needed since the kernel can now execute\n\ |
a687059c LW |
250 | setuid perl scripts securely.\n"); |
251 | #endif | |
252 | #endif | |
253 | ||
79072805 LW |
254 | if (!(curinterp = sv_interp)) |
255 | return 255; | |
256 | ||
ac58e20f LW |
257 | origargv = argv; |
258 | origargc = argc; | |
a0d0e21e | 259 | #ifndef VMS /* VMS doesn't have environ array */ |
fe14fcc3 | 260 | origenviron = environ; |
a0d0e21e | 261 | #endif |
ab821d7f | 262 | e_tmpname = Nullch; |
a0d0e21e LW |
263 | |
264 | if (do_undump) { | |
265 | ||
266 | /* Come here if running an undumped a.out. */ | |
267 | ||
268 | origfilename = savepv(argv[0]); | |
269 | do_undump = FALSE; | |
270 | cxstack_ix = -1; /* start label stack again */ | |
748a9306 | 271 | init_ids(); |
a0d0e21e LW |
272 | init_postdump_symbols(argc,argv,env); |
273 | return 0; | |
274 | } | |
275 | ||
276 | if (main_root) | |
277 | op_free(main_root); | |
278 | main_root = 0; | |
79072805 | 279 | |
a5f75d66 | 280 | switch (Sigsetjmp(top_env,1)) { |
79072805 | 281 | case 1: |
748a9306 | 282 | #ifdef VMS |
79072805 | 283 | statusvalue = 255; |
748a9306 LW |
284 | #else |
285 | statusvalue = 1; | |
286 | #endif | |
79072805 | 287 | case 2: |
8990e307 LW |
288 | curstash = defstash; |
289 | if (endav) | |
290 | calllist(endav); | |
79072805 LW |
291 | return(statusvalue); /* my_exit() was called */ |
292 | case 3: | |
293 | fprintf(stderr, "panic: top_env\n"); | |
8990e307 | 294 | return 1; |
79072805 LW |
295 | } |
296 | ||
79072805 LW |
297 | sv_setpvn(linestr,"",0); |
298 | sv = newSVpv("",0); /* first used for -I flags */ | |
8990e307 | 299 | SAVEFREESV(sv); |
79072805 | 300 | init_main_stash(); |
33b78306 | 301 | for (argc--,argv++; argc > 0; argc--,argv++) { |
8d063cd8 LW |
302 | if (argv[0][0] != '-' || !argv[0][1]) |
303 | break; | |
13281fa4 LW |
304 | #ifdef DOSUID |
305 | if (*validarg) | |
306 | validarg = " PHOOEY "; | |
307 | else | |
308 | validarg = argv[0]; | |
309 | #endif | |
310 | s = argv[0]+1; | |
8d063cd8 | 311 | reswitch: |
13281fa4 | 312 | switch (*s) { |
27e2fb84 | 313 | case '0': |
2304df62 | 314 | case 'F': |
378cc40b | 315 | case 'a': |
33b78306 | 316 | case 'c': |
a687059c | 317 | case 'd': |
8d063cd8 | 318 | case 'D': |
4633a7c4 | 319 | case 'h': |
33b78306 | 320 | case 'i': |
fe14fcc3 | 321 | case 'l': |
1a30305b | 322 | case 'M': |
323 | case 'm': | |
33b78306 LW |
324 | case 'n': |
325 | case 'p': | |
79072805 | 326 | case 's': |
463ee0b2 | 327 | case 'T': |
33b78306 LW |
328 | case 'u': |
329 | case 'U': | |
330 | case 'v': | |
331 | case 'w': | |
332 | if (s = moreswitches(s)) | |
333 | goto reswitch; | |
8d063cd8 | 334 | break; |
33b78306 | 335 | |
8d063cd8 | 336 | case 'e': |
a687059c | 337 | if (euid != uid || egid != gid) |
463ee0b2 | 338 | croak("No -e allowed in setuid scripts"); |
8d063cd8 | 339 | if (!e_fp) { |
a0d0e21e | 340 | e_tmpname = savepv(TMPPATH); |
a687059c | 341 | (void)mktemp(e_tmpname); |
83025b21 | 342 | if (!*e_tmpname) |
463ee0b2 | 343 | croak("Can't mktemp()"); |
8d063cd8 | 344 | e_fp = fopen(e_tmpname,"w"); |
33b78306 | 345 | if (!e_fp) |
463ee0b2 | 346 | croak("Cannot open temporary file"); |
8d063cd8 | 347 | } |
33b78306 | 348 | if (argv[1]) { |
8d063cd8 | 349 | fputs(argv[1],e_fp); |
33b78306 LW |
350 | argc--,argv++; |
351 | } | |
a687059c | 352 | (void)putc('\n', e_fp); |
8d063cd8 LW |
353 | break; |
354 | case 'I': | |
463ee0b2 | 355 | taint_not("-I"); |
79072805 LW |
356 | sv_catpv(sv,"-"); |
357 | sv_catpv(sv,s); | |
358 | sv_catpv(sv," "); | |
a687059c | 359 | if (*++s) { |
a0d0e21e | 360 | av_push(GvAVn(incgv),newSVpv(s,0)); |
378cc40b | 361 | } |
33b78306 | 362 | else if (argv[1]) { |
a0d0e21e | 363 | av_push(GvAVn(incgv),newSVpv(argv[1],0)); |
79072805 | 364 | sv_catpv(sv,argv[1]); |
8d063cd8 | 365 | argc--,argv++; |
79072805 | 366 | sv_catpv(sv," "); |
8d063cd8 LW |
367 | } |
368 | break; | |
8d063cd8 | 369 | case 'P': |
463ee0b2 | 370 | taint_not("-P"); |
8d063cd8 | 371 | preprocess = TRUE; |
13281fa4 | 372 | s++; |
8d063cd8 | 373 | goto reswitch; |
378cc40b | 374 | case 'S': |
463ee0b2 | 375 | taint_not("-S"); |
378cc40b | 376 | dosearch = TRUE; |
13281fa4 | 377 | s++; |
378cc40b | 378 | goto reswitch; |
1a30305b | 379 | case 'V': |
380 | if (!preambleav) | |
381 | preambleav = newAV(); | |
382 | av_push(preambleav, newSVpv("use Config qw(myconfig config_vars)",0)); | |
383 | if (*++s != ':') { | |
384 | Sv = newSVpv("print myconfig(),'@INC: '.\"@INC\\n\"",0); | |
385 | } | |
386 | else { | |
387 | Sv = newSVpv("config_vars(qw(",0); | |
388 | sv_catpv(Sv, ++s); | |
389 | sv_catpv(Sv, "))"); | |
390 | s += strlen(s); | |
391 | } | |
392 | av_push(preambleav, Sv); | |
c07a80fd | 393 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
1a30305b | 394 | goto reswitch; |
33b78306 LW |
395 | case 'x': |
396 | doextract = TRUE; | |
13281fa4 | 397 | s++; |
33b78306 | 398 | if (*s) |
a0d0e21e | 399 | cddir = savepv(s); |
33b78306 | 400 | break; |
8d063cd8 LW |
401 | case '-': |
402 | argc--,argv++; | |
403 | goto switch_end; | |
404 | case 0: | |
405 | break; | |
406 | default: | |
463ee0b2 | 407 | croak("Unrecognized switch: -%s",s); |
8d063cd8 LW |
408 | } |
409 | } | |
410 | switch_end: | |
1a30305b | 411 | if (!scriptname) |
412 | scriptname = argv[0]; | |
8d063cd8 | 413 | if (e_fp) { |
a5f75d66 | 414 | if (Fflush(e_fp) || ferror(e_fp) || fclose(e_fp)) |
2304df62 | 415 | croak("Can't write to temp file for -e: %s", Strerror(errno)); |
ab821d7f | 416 | e_fp = Nullfp; |
8d063cd8 | 417 | argc++,argv--; |
45d8adaa | 418 | scriptname = e_tmpname; |
8d063cd8 | 419 | } |
79072805 LW |
420 | else if (scriptname == Nullch) { |
421 | #ifdef MSDOS | |
422 | if ( isatty(fileno(stdin)) ) | |
423 | moreswitches("v"); | |
fe14fcc3 | 424 | #endif |
79072805 LW |
425 | scriptname = "-"; |
426 | } | |
fe14fcc3 | 427 | |
79072805 | 428 | init_perllib(); |
8d063cd8 | 429 | |
79072805 | 430 | open_script(scriptname,dosearch,sv); |
8d063cd8 | 431 | |
96436eeb | 432 | validate_suid(validarg, scriptname); |
378cc40b | 433 | |
79072805 LW |
434 | if (doextract) |
435 | find_beginning(); | |
436 | ||
748a9306 LW |
437 | compcv = (CV*)NEWSV(1104,0); |
438 | sv_upgrade((SV *)compcv, SVt_PVCV); | |
439 | ||
79072805 LW |
440 | pad = newAV(); |
441 | comppad = pad; | |
442 | av_push(comppad, Nullsv); | |
443 | curpad = AvARRAY(comppad); | |
93a17b20 | 444 | padname = newAV(); |
8990e307 LW |
445 | comppad_name = padname; |
446 | comppad_name_fill = 0; | |
447 | min_intro_pending = 0; | |
79072805 LW |
448 | padix = 0; |
449 | ||
748a9306 LW |
450 | comppadlist = newAV(); |
451 | AvREAL_off(comppadlist); | |
8e07c86e AD |
452 | av_store(comppadlist, 0, (SV*)comppad_name); |
453 | av_store(comppadlist, 1, (SV*)comppad); | |
748a9306 LW |
454 | CvPADLIST(compcv) = comppadlist; |
455 | ||
a0d0e21e LW |
456 | if (xsinit) |
457 | (*xsinit)(); /* in case linked C routines want magical variables */ | |
748a9306 LW |
458 | #ifdef VMS |
459 | init_os_extras(); | |
460 | #endif | |
93a17b20 | 461 | |
93a17b20 | 462 | init_predump_symbols(); |
8990e307 LW |
463 | if (!do_undump) |
464 | init_postdump_symbols(argc,argv,env); | |
93a17b20 | 465 | |
79072805 LW |
466 | init_lexer(); |
467 | ||
468 | /* now parse the script */ | |
469 | ||
470 | error_count = 0; | |
471 | if (yyparse() || error_count) { | |
472 | if (minus_c) | |
463ee0b2 | 473 | croak("%s had compilation errors.\n", origfilename); |
79072805 | 474 | else { |
463ee0b2 | 475 | croak("Execution of %s aborted due to compilation errors.\n", |
79072805 | 476 | origfilename); |
378cc40b | 477 | } |
79072805 LW |
478 | } |
479 | curcop->cop_line = 0; | |
480 | curstash = defstash; | |
481 | preprocess = FALSE; | |
ab821d7f | 482 | if (e_tmpname) { |
79072805 | 483 | (void)UNLINK(e_tmpname); |
ab821d7f | 484 | Safefree(e_tmpname); |
485 | e_tmpname = Nullch; | |
378cc40b | 486 | } |
a687059c | 487 | |
93a17b20 | 488 | /* now that script is parsed, we can modify record separator */ |
c07a80fd | 489 | SvREFCNT_dec(rs); |
490 | rs = SvREFCNT_inc(nrs); | |
491 | sv_setsv(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), rs); | |
45d8adaa | 492 | |
79072805 LW |
493 | if (do_undump) |
494 | my_unexec(); | |
495 | ||
8990e307 LW |
496 | if (dowarn) |
497 | gv_check(defstash); | |
498 | ||
a0d0e21e LW |
499 | LEAVE; |
500 | FREETMPS; | |
c07a80fd | 501 | |
502 | #ifdef DEBUGGING_MSTATS | |
503 | if ((s=getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) | |
504 | dump_mstats("after compilation:"); | |
505 | #endif | |
506 | ||
a0d0e21e LW |
507 | ENTER; |
508 | restartop = 0; | |
79072805 LW |
509 | return 0; |
510 | } | |
511 | ||
512 | int | |
513 | perl_run(sv_interp) | |
93a17b20 | 514 | PerlInterpreter *sv_interp; |
79072805 LW |
515 | { |
516 | if (!(curinterp = sv_interp)) | |
517 | return 255; | |
a5f75d66 | 518 | switch (Sigsetjmp(top_env,1)) { |
79072805 LW |
519 | case 1: |
520 | cxstack_ix = -1; /* start context stack again */ | |
521 | break; | |
522 | case 2: | |
523 | curstash = defstash; | |
93a17b20 LW |
524 | if (endav) |
525 | calllist(endav); | |
a0d0e21e | 526 | FREETMPS; |
c07a80fd | 527 | #ifdef DEBUGGING_MSTATS |
528 | if (getenv("PERL_DEBUG_MSTATS")) | |
529 | dump_mstats("after execution: "); | |
530 | #endif | |
93a17b20 | 531 | return(statusvalue); /* my_exit() was called */ |
79072805 LW |
532 | case 3: |
533 | if (!restartop) { | |
534 | fprintf(stderr, "panic: restartop\n"); | |
a0d0e21e | 535 | FREETMPS; |
8990e307 | 536 | return 1; |
83025b21 | 537 | } |
79072805 LW |
538 | if (stack != mainstack) { |
539 | dSP; | |
540 | SWITCHSTACK(stack, mainstack); | |
541 | } | |
542 | break; | |
8d063cd8 | 543 | } |
79072805 LW |
544 | |
545 | if (!restartop) { | |
546 | DEBUG_x(dump_all()); | |
547 | DEBUG(fprintf(stderr,"\nEXECUTING...\n\n")); | |
548 | ||
549 | if (minus_c) { | |
550 | fprintf(stderr,"%s syntax OK\n", origfilename); | |
551 | my_exit(0); | |
552 | } | |
a0d0e21e LW |
553 | if (perldb && DBsingle) |
554 | sv_setiv(DBsingle, 1); | |
45d8adaa | 555 | } |
79072805 LW |
556 | |
557 | /* do it */ | |
558 | ||
559 | if (restartop) { | |
560 | op = restartop; | |
561 | restartop = 0; | |
ab821d7f | 562 | runops(); |
79072805 LW |
563 | } |
564 | else if (main_start) { | |
565 | op = main_start; | |
ab821d7f | 566 | runops(); |
79072805 | 567 | } |
79072805 LW |
568 | |
569 | my_exit(0); | |
a0d0e21e | 570 | return 0; |
79072805 LW |
571 | } |
572 | ||
573 | void | |
574 | my_exit(status) | |
748a9306 | 575 | U32 status; |
79072805 | 576 | { |
a0d0e21e LW |
577 | register CONTEXT *cx; |
578 | I32 gimme; | |
579 | SV **newsp; | |
580 | ||
748a9306 | 581 | statusvalue = FIXSTATUS(status); |
a0d0e21e LW |
582 | if (cxstack_ix >= 0) { |
583 | if (cxstack_ix > 0) | |
584 | dounwind(0); | |
585 | POPBLOCK(cx,curpm); | |
586 | LEAVE; | |
587 | } | |
a5f75d66 | 588 | Siglongjmp(top_env, 2); |
79072805 LW |
589 | } |
590 | ||
a0d0e21e LW |
591 | SV* |
592 | perl_get_sv(name, create) | |
593 | char* name; | |
594 | I32 create; | |
595 | { | |
596 | GV* gv = gv_fetchpv(name, create, SVt_PV); | |
597 | if (gv) | |
598 | return GvSV(gv); | |
599 | return Nullsv; | |
600 | } | |
601 | ||
602 | AV* | |
603 | perl_get_av(name, create) | |
604 | char* name; | |
605 | I32 create; | |
606 | { | |
607 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); | |
608 | if (create) | |
609 | return GvAVn(gv); | |
610 | if (gv) | |
611 | return GvAV(gv); | |
612 | return Nullav; | |
613 | } | |
614 | ||
615 | HV* | |
616 | perl_get_hv(name, create) | |
617 | char* name; | |
618 | I32 create; | |
619 | { | |
620 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); | |
621 | if (create) | |
622 | return GvHVn(gv); | |
623 | if (gv) | |
624 | return GvHV(gv); | |
625 | return Nullhv; | |
626 | } | |
627 | ||
628 | CV* | |
629 | perl_get_cv(name, create) | |
630 | char* name; | |
631 | I32 create; | |
632 | { | |
633 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); | |
634 | if (create && !GvCV(gv)) | |
635 | return newSUB(start_subparse(), | |
636 | newSVOP(OP_CONST, 0, newSVpv(name,0)), | |
4633a7c4 | 637 | Nullop, |
a0d0e21e LW |
638 | Nullop); |
639 | if (gv) | |
640 | return GvCV(gv); | |
641 | return Nullcv; | |
642 | } | |
643 | ||
79072805 LW |
644 | /* Be sure to refetch the stack pointer after calling these routines. */ |
645 | ||
a0d0e21e LW |
646 | I32 |
647 | perl_call_argv(subname, flags, argv) | |
8990e307 | 648 | char *subname; |
a0d0e21e LW |
649 | I32 flags; /* See G_* flags in cop.h */ |
650 | register char **argv; /* null terminated arg list */ | |
8990e307 | 651 | { |
a0d0e21e | 652 | dSP; |
8990e307 | 653 | |
a0d0e21e LW |
654 | PUSHMARK(sp); |
655 | if (argv) { | |
8990e307 | 656 | while (*argv) { |
a0d0e21e | 657 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 LW |
658 | argv++; |
659 | } | |
a0d0e21e | 660 | PUTBACK; |
8990e307 | 661 | } |
a0d0e21e | 662 | return perl_call_pv(subname, flags); |
8990e307 LW |
663 | } |
664 | ||
a0d0e21e LW |
665 | I32 |
666 | perl_call_pv(subname, flags) | |
667 | char *subname; /* name of the subroutine */ | |
668 | I32 flags; /* See G_* flags in cop.h */ | |
669 | { | |
670 | return perl_call_sv((SV*)perl_get_cv(subname, TRUE), flags); | |
671 | } | |
672 | ||
673 | I32 | |
674 | perl_call_method(methname, flags) | |
675 | char *methname; /* name of the subroutine */ | |
676 | I32 flags; /* See G_* flags in cop.h */ | |
677 | { | |
678 | dSP; | |
679 | OP myop; | |
680 | if (!op) | |
681 | op = &myop; | |
682 | XPUSHs(sv_2mortal(newSVpv(methname,0))); | |
683 | PUTBACK; | |
684 | pp_method(); | |
685 | return perl_call_sv(*stack_sp--, flags); | |
686 | } | |
687 | ||
688 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
689 | I32 | |
690 | perl_call_sv(sv, flags) | |
691 | SV* sv; | |
692 | I32 flags; /* See G_* flags in cop.h */ | |
693 | { | |
694 | LOGOP myop; /* fake syntax tree node */ | |
695 | SV** sp = stack_sp; | |
696 | I32 oldmark = TOPMARK; | |
697 | I32 retval; | |
a5f75d66 | 698 | Sigjmp_buf oldtop; |
a0d0e21e LW |
699 | I32 oldscope; |
700 | ||
701 | if (flags & G_DISCARD) { | |
702 | ENTER; | |
703 | SAVETMPS; | |
704 | } | |
705 | ||
706 | SAVESPTR(op); | |
707 | op = (OP*)&myop; | |
708 | Zero(op, 1, LOGOP); | |
709 | EXTEND(stack_sp, 1); | |
710 | *++stack_sp = sv; | |
711 | oldscope = scopestack_ix; | |
712 | ||
713 | if (!(flags & G_NOARGS)) | |
714 | myop.op_flags = OPf_STACKED; | |
715 | myop.op_next = Nullop; | |
716 | myop.op_flags |= OPf_KNOW; | |
717 | if (flags & G_ARRAY) | |
718 | myop.op_flags |= OPf_LIST; | |
719 | ||
720 | if (flags & G_EVAL) { | |
a5f75d66 | 721 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
a0d0e21e LW |
722 | |
723 | cLOGOP->op_other = op; | |
724 | markstack_ptr--; | |
4633a7c4 LW |
725 | /* we're trying to emulate pp_entertry() here */ |
726 | { | |
727 | register CONTEXT *cx; | |
728 | I32 gimme = GIMME; | |
729 | ||
730 | ENTER; | |
731 | SAVETMPS; | |
732 | ||
733 | push_return(op->op_next); | |
734 | PUSHBLOCK(cx, CXt_EVAL, stack_sp); | |
735 | PUSHEVAL(cx, 0, 0); | |
736 | eval_root = op; /* Only needed so that goto works right. */ | |
737 | ||
738 | in_eval = 1; | |
739 | if (flags & G_KEEPERR) | |
740 | in_eval |= 4; | |
741 | else | |
742 | sv_setpv(GvSV(errgv),""); | |
743 | } | |
a0d0e21e LW |
744 | markstack_ptr++; |
745 | ||
746 | restart: | |
a5f75d66 | 747 | switch (Sigsetjmp(top_env,1)) { |
a0d0e21e LW |
748 | case 0: |
749 | break; | |
750 | case 1: | |
748a9306 | 751 | #ifdef VMS |
a0d0e21e | 752 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 LW |
753 | #else |
754 | statusvalue = 1; | |
755 | #endif | |
a0d0e21e LW |
756 | /* FALL THROUGH */ |
757 | case 2: | |
758 | /* my_exit() was called */ | |
759 | curstash = defstash; | |
760 | FREETMPS; | |
a5f75d66 | 761 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
762 | if (statusvalue) |
763 | croak("Callback called exit"); | |
764 | my_exit(statusvalue); | |
765 | /* NOTREACHED */ | |
766 | case 3: | |
767 | if (restartop) { | |
768 | op = restartop; | |
769 | restartop = 0; | |
770 | goto restart; | |
771 | } | |
772 | stack_sp = stack_base + oldmark; | |
773 | if (flags & G_ARRAY) | |
774 | retval = 0; | |
775 | else { | |
776 | retval = 1; | |
777 | *++stack_sp = &sv_undef; | |
778 | } | |
779 | goto cleanup; | |
780 | } | |
781 | } | |
782 | ||
783 | if (op == (OP*)&myop) | |
784 | op = pp_entersub(); | |
785 | if (op) | |
ab821d7f | 786 | runops(); |
a0d0e21e | 787 | retval = stack_sp - (stack_base + oldmark); |
4633a7c4 LW |
788 | if ((flags & G_EVAL) && !(flags & G_KEEPERR)) |
789 | sv_setpv(GvSV(errgv),""); | |
a0d0e21e LW |
790 | |
791 | cleanup: | |
792 | if (flags & G_EVAL) { | |
793 | if (scopestack_ix > oldscope) { | |
a0a2876f LW |
794 | SV **newsp; |
795 | PMOP *newpm; | |
796 | I32 gimme; | |
797 | register CONTEXT *cx; | |
798 | I32 optype; | |
799 | ||
800 | POPBLOCK(cx,newpm); | |
801 | POPEVAL(cx); | |
802 | pop_return(); | |
803 | curpm = newpm; | |
804 | LEAVE; | |
a0d0e21e | 805 | } |
a5f75d66 | 806 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
807 | } |
808 | if (flags & G_DISCARD) { | |
809 | stack_sp = stack_base + oldmark; | |
810 | retval = 0; | |
811 | FREETMPS; | |
812 | LEAVE; | |
813 | } | |
814 | return retval; | |
815 | } | |
816 | ||
4633a7c4 | 817 | /* Eval a string. */ |
8990e307 | 818 | |
a0d0e21e | 819 | I32 |
4633a7c4 | 820 | perl_eval_sv(sv, flags) |
8990e307 | 821 | SV* sv; |
4633a7c4 | 822 | I32 flags; /* See G_* flags in cop.h */ |
a0d0e21e LW |
823 | { |
824 | UNOP myop; /* fake syntax tree node */ | |
4633a7c4 LW |
825 | SV** sp = stack_sp; |
826 | I32 oldmark = sp - stack_base; | |
827 | I32 retval; | |
a5f75d66 | 828 | Sigjmp_buf oldtop; |
4633a7c4 | 829 | I32 oldscope; |
79072805 | 830 | |
4633a7c4 LW |
831 | if (flags & G_DISCARD) { |
832 | ENTER; | |
833 | SAVETMPS; | |
834 | } | |
835 | ||
79072805 | 836 | SAVESPTR(op); |
79072805 | 837 | op = (OP*)&myop; |
a0d0e21e | 838 | Zero(op, 1, UNOP); |
4633a7c4 LW |
839 | EXTEND(stack_sp, 1); |
840 | *++stack_sp = sv; | |
841 | oldscope = scopestack_ix; | |
79072805 | 842 | |
4633a7c4 LW |
843 | if (!(flags & G_NOARGS)) |
844 | myop.op_flags = OPf_STACKED; | |
79072805 | 845 | myop.op_next = Nullop; |
4633a7c4 LW |
846 | myop.op_flags |= OPf_KNOW; |
847 | if (flags & G_ARRAY) | |
848 | myop.op_flags |= OPf_LIST; | |
79072805 | 849 | |
a5f75d66 | 850 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
4633a7c4 LW |
851 | |
852 | restart: | |
a5f75d66 | 853 | switch (Sigsetjmp(top_env,1)) { |
4633a7c4 LW |
854 | case 0: |
855 | break; | |
856 | case 1: | |
857 | #ifdef VMS | |
858 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ | |
859 | #else | |
860 | statusvalue = 1; | |
861 | #endif | |
862 | /* FALL THROUGH */ | |
863 | case 2: | |
864 | /* my_exit() was called */ | |
865 | curstash = defstash; | |
866 | FREETMPS; | |
a5f75d66 | 867 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
4633a7c4 LW |
868 | if (statusvalue) |
869 | croak("Callback called exit"); | |
870 | my_exit(statusvalue); | |
871 | /* NOTREACHED */ | |
872 | case 3: | |
873 | if (restartop) { | |
874 | op = restartop; | |
875 | restartop = 0; | |
876 | goto restart; | |
877 | } | |
878 | stack_sp = stack_base + oldmark; | |
879 | if (flags & G_ARRAY) | |
880 | retval = 0; | |
881 | else { | |
882 | retval = 1; | |
883 | *++stack_sp = &sv_undef; | |
884 | } | |
885 | goto cleanup; | |
886 | } | |
887 | ||
888 | if (op == (OP*)&myop) | |
889 | op = pp_entereval(); | |
890 | if (op) | |
ab821d7f | 891 | runops(); |
4633a7c4 LW |
892 | retval = stack_sp - (stack_base + oldmark); |
893 | if ((flags & G_EVAL) && !(flags & G_KEEPERR)) | |
894 | sv_setpv(GvSV(errgv),""); | |
895 | ||
896 | cleanup: | |
a5f75d66 | 897 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
4633a7c4 LW |
898 | if (flags & G_DISCARD) { |
899 | stack_sp = stack_base + oldmark; | |
900 | retval = 0; | |
901 | FREETMPS; | |
902 | LEAVE; | |
903 | } | |
904 | return retval; | |
905 | } | |
906 | ||
907 | /* Require a module. */ | |
908 | ||
909 | void | |
910 | perl_require_pv(pv) | |
911 | char* pv; | |
912 | { | |
913 | SV* sv = sv_newmortal(); | |
914 | sv_setpv(sv, "require '"); | |
915 | sv_catpv(sv, pv); | |
916 | sv_catpv(sv, "'"); | |
917 | perl_eval_sv(sv, G_DISCARD); | |
79072805 LW |
918 | } |
919 | ||
79072805 | 920 | void |
79072805 LW |
921 | magicname(sym,name,namlen) |
922 | char *sym; | |
923 | char *name; | |
924 | I32 namlen; | |
925 | { | |
926 | register GV *gv; | |
927 | ||
85e6fe83 | 928 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 LW |
929 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
930 | } | |
931 | ||
748a9306 LW |
932 | #if defined(DOSISH) |
933 | # define PERLLIB_SEP ';' | |
79072805 | 934 | #else |
232e078e AD |
935 | # if defined(VMS) |
936 | # define PERLLIB_SEP '|' | |
937 | # else | |
748a9306 | 938 | # define PERLLIB_SEP ':' |
232e078e | 939 | # endif |
79072805 LW |
940 | #endif |
941 | ||
942 | static void | |
943 | incpush(p) | |
944 | char *p; | |
945 | { | |
946 | char *s; | |
947 | ||
948 | if (!p) | |
949 | return; | |
950 | ||
951 | /* Break at all separators */ | |
952 | while (*p) { | |
953 | /* First, skip any consecutive separators */ | |
954 | while ( *p == PERLLIB_SEP ) { | |
955 | /* Uncomment the next line for PATH semantics */ | |
a0d0e21e | 956 | /* av_push(GvAVn(incgv), newSVpv(".", 1)); */ |
79072805 LW |
957 | p++; |
958 | } | |
93a17b20 | 959 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { |
a0d0e21e | 960 | av_push(GvAVn(incgv), newSVpv(p, (STRLEN)(s - p))); |
79072805 LW |
961 | p = s + 1; |
962 | } else { | |
a0d0e21e | 963 | av_push(GvAVn(incgv), newSVpv(p, 0)); |
79072805 LW |
964 | break; |
965 | } | |
966 | } | |
967 | } | |
968 | ||
ab821d7f | 969 | static void |
1a30305b | 970 | usage(name) /* XXX move this out into a module ? */ |
4633a7c4 LW |
971 | char *name; |
972 | { | |
ab821d7f | 973 | /* This message really ought to be max 23 lines. |
974 | * Removed -h because the user already knows that opton. Others? */ | |
975 | printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name); | |
4633a7c4 | 976 | printf("\n -0[octal] specify record separator (\\0, if no argument)"); |
ab821d7f | 977 | printf("\n -a autosplit mode with -n or -p (splits $_ into @F)"); |
4633a7c4 | 978 | printf("\n -c check syntax only (runs BEGIN and END blocks)"); |
1a30305b | 979 | printf("\n -d[:debugger] run scripts under debugger"); |
4633a7c4 | 980 | printf("\n -D[number/list] set debugging flags (argument is a bit mask or flags)"); |
ab821d7f | 981 | printf("\n -e 'command' one line of script. Several -e's allowed. Omit [programfile]."); |
982 | printf("\n -F/pattern/ split() pattern for autosplit (-a). The //'s are optional."); | |
4633a7c4 | 983 | printf("\n -i[extension] edit <> files in place (make backup if extension supplied)"); |
ab821d7f | 984 | printf("\n -Idirectory specify @INC/#include directory (may be used more then once)"); |
4633a7c4 | 985 | printf("\n -l[octal] enable line ending processing, specifies line teminator"); |
ab821d7f | 986 | printf("\n -[mM][-]module.. executes `use/no module...' before executing your script."); |
4633a7c4 LW |
987 | printf("\n -n assume 'while (<>) { ... }' loop arround your script"); |
988 | printf("\n -p assume loop like -n but print line also like sed"); | |
989 | printf("\n -P run script through C preprocessor before compilation"); | |
990 | #ifdef OS2 | |
991 | printf("\n -R enable REXX variable pool"); | |
992 | #endif | |
993 | printf("\n -s enable some switch parsing for switches after script name"); | |
994 | printf("\n -S look for the script using PATH environment variable"); | |
995 | printf("\n -T turn on tainting checks"); | |
996 | printf("\n -u dump core after parsing script"); | |
997 | printf("\n -U allow unsafe operations"); | |
998 | printf("\n -v print version number and patchlevel of perl"); | |
1a30305b | 999 | printf("\n -V[:variable] print perl configuration information"); |
ab821d7f | 1000 | printf("\n -w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT."); |
4633a7c4 LW |
1001 | printf("\n -x[directory] strip off text before #!perl line and perhaps cd to directory\n"); |
1002 | } | |
1003 | ||
79072805 LW |
1004 | /* This routine handles any switches that can be given during run */ |
1005 | ||
1006 | char * | |
1007 | moreswitches(s) | |
1008 | char *s; | |
1009 | { | |
1010 | I32 numlen; | |
c07a80fd | 1011 | U32 rschar; |
79072805 LW |
1012 | |
1013 | switch (*s) { | |
1014 | case '0': | |
c07a80fd | 1015 | rschar = scan_oct(s, 4, &numlen); |
1016 | SvREFCNT_dec(nrs); | |
1017 | if (rschar & ~((U8)~0)) | |
1018 | nrs = &sv_undef; | |
1019 | else if (!rschar && numlen >= 2) | |
1020 | nrs = newSVpv("", 0); | |
1021 | else { | |
1022 | char ch = rschar; | |
1023 | nrs = newSVpv(&ch, 1); | |
79072805 LW |
1024 | } |
1025 | return s + numlen; | |
2304df62 AD |
1026 | case 'F': |
1027 | minus_F = TRUE; | |
a0d0e21e | 1028 | splitstr = savepv(s + 1); |
2304df62 AD |
1029 | s += strlen(s); |
1030 | return s; | |
79072805 LW |
1031 | case 'a': |
1032 | minus_a = TRUE; | |
1033 | s++; | |
1034 | return s; | |
1035 | case 'c': | |
1036 | minus_c = TRUE; | |
1037 | s++; | |
1038 | return s; | |
1039 | case 'd': | |
463ee0b2 | 1040 | taint_not("-d"); |
4633a7c4 | 1041 | s++; |
c07a80fd | 1042 | if (*s == ':' || *s == '=') { |
4633a7c4 LW |
1043 | sprintf(buf, "use Devel::%s;", ++s); |
1044 | s += strlen(s); | |
1045 | my_setenv("PERL5DB",buf); | |
1046 | } | |
a0d0e21e LW |
1047 | if (!perldb) { |
1048 | perldb = TRUE; | |
1049 | init_debugger(); | |
1050 | } | |
79072805 LW |
1051 | return s; |
1052 | case 'D': | |
1053 | #ifdef DEBUGGING | |
463ee0b2 | 1054 | taint_not("-D"); |
79072805 | 1055 | if (isALPHA(s[1])) { |
8990e307 | 1056 | static char debopts[] = "psltocPmfrxuLHXD"; |
79072805 LW |
1057 | char *d; |
1058 | ||
93a17b20 | 1059 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
79072805 LW |
1060 | debug |= 1 << (d - debopts); |
1061 | } | |
1062 | else { | |
1063 | debug = atoi(s+1); | |
1064 | for (s++; isDIGIT(*s); s++) ; | |
1065 | } | |
8990e307 | 1066 | debug |= 0x80000000; |
79072805 LW |
1067 | #else |
1068 | warn("Recompile perl with -DDEBUGGING to use -D switch\n"); | |
a0d0e21e | 1069 | for (s++; isALNUM(*s); s++) ; |
79072805 LW |
1070 | #endif |
1071 | /*SUPPRESS 530*/ | |
1072 | return s; | |
4633a7c4 LW |
1073 | case 'h': |
1074 | usage(origargv[0]); | |
1075 | exit(0); | |
79072805 LW |
1076 | case 'i': |
1077 | if (inplace) | |
1078 | Safefree(inplace); | |
a0d0e21e | 1079 | inplace = savepv(s+1); |
79072805 LW |
1080 | /*SUPPRESS 530*/ |
1081 | for (s = inplace; *s && !isSPACE(*s); s++) ; | |
1082 | *s = '\0'; | |
1083 | break; | |
1084 | case 'I': | |
463ee0b2 | 1085 | taint_not("-I"); |
79072805 | 1086 | if (*++s) { |
748a9306 LW |
1087 | char *e; |
1088 | for (e = s; *e && !isSPACE(*e); e++) ; | |
1089 | av_push(GvAVn(incgv),newSVpv(s,e-s)); | |
1090 | if (*e) | |
1091 | return e; | |
79072805 LW |
1092 | } |
1093 | else | |
463ee0b2 | 1094 | croak("No space allowed after -I"); |
79072805 LW |
1095 | break; |
1096 | case 'l': | |
1097 | minus_l = TRUE; | |
1098 | s++; | |
a0d0e21e LW |
1099 | if (ors) |
1100 | Safefree(ors); | |
79072805 | 1101 | if (isDIGIT(*s)) { |
a0d0e21e | 1102 | ors = savepv("\n"); |
79072805 LW |
1103 | orslen = 1; |
1104 | *ors = scan_oct(s, 3 + (*s == '0'), &numlen); | |
1105 | s += numlen; | |
1106 | } | |
1107 | else { | |
c07a80fd | 1108 | if (RsPARA(nrs)) { |
1109 | ors = savepvn("\n\n", 2); | |
1110 | orslen = 2; | |
1111 | } | |
1112 | else | |
1113 | ors = SvPV(nrs, orslen); | |
79072805 LW |
1114 | } |
1115 | return s; | |
1a30305b | 1116 | case 'M': |
1117 | taint_not("-M"); /* XXX ? */ | |
1118 | /* FALL THROUGH */ | |
1119 | case 'm': | |
1120 | taint_not("-m"); /* XXX ? */ | |
1121 | if (*++s) { | |
a5f75d66 AD |
1122 | char *start; |
1123 | char *use = "use "; | |
1124 | /* -M-foo == 'no foo' */ | |
1125 | if (*s == '-') { use = "no "; ++s; } | |
1126 | Sv = newSVpv(use,0); | |
1127 | start = s; | |
1a30305b | 1128 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd | 1129 | while(isALNUM(*s) || *s==':') ++s; |
1130 | if (*s != '=') { | |
1131 | sv_catpv(Sv, start); | |
1132 | if (*(start-1) == 'm') { | |
1133 | if (*s != '\0') | |
1134 | croak("Can't use '%c' after -mname", *s); | |
1135 | sv_catpv( Sv, " ()"); | |
1136 | } | |
1137 | } else { | |
1138 | sv_catpvn(Sv, start, s-start); | |
a5f75d66 | 1139 | sv_catpv(Sv, " split(/,/,q{"); |
c07a80fd | 1140 | sv_catpv(Sv, ++s); |
a5f75d66 | 1141 | sv_catpv(Sv, "})"); |
c07a80fd | 1142 | } |
1a30305b | 1143 | s += strlen(s); |
c07a80fd | 1144 | if (preambleav == NULL) |
1145 | preambleav = newAV(); | |
1146 | av_push(preambleav, Sv); | |
1a30305b | 1147 | } |
1148 | else | |
1149 | croak("No space allowed after -%c", *(s-1)); | |
1150 | return s; | |
79072805 LW |
1151 | case 'n': |
1152 | minus_n = TRUE; | |
1153 | s++; | |
1154 | return s; | |
1155 | case 'p': | |
1156 | minus_p = TRUE; | |
1157 | s++; | |
1158 | return s; | |
1159 | case 's': | |
463ee0b2 | 1160 | taint_not("-s"); |
79072805 LW |
1161 | doswitches = TRUE; |
1162 | s++; | |
1163 | return s; | |
463ee0b2 LW |
1164 | case 'T': |
1165 | tainting = TRUE; | |
1166 | s++; | |
1167 | return s; | |
79072805 LW |
1168 | case 'u': |
1169 | do_undump = TRUE; | |
1170 | s++; | |
1171 | return s; | |
1172 | case 'U': | |
1173 | unsafe = TRUE; | |
1174 | s++; | |
1175 | return s; | |
1176 | case 'v': | |
a5f75d66 AD |
1177 | #if defined(SUBVERSION) && SUBVERSION > 0 |
1178 | printf("\nThis is perl, version 5.%03d_%02d", PATCHLEVEL, SUBVERSION); | |
1179 | #else | |
1180 | printf("\nThis is perl, version %s",patchlevel); | |
1181 | #endif | |
1a30305b | 1182 | |
1183 | #if defined(DEBUGGING) || defined(EMBED) || defined(MULTIPLICITY) | |
1184 | fputs(" with", stdout); | |
1185 | #ifdef DEBUGGING | |
1186 | fputs(" DEBUGGING", stdout); | |
1187 | #endif | |
1188 | #ifdef EMBED | |
1189 | fputs(" EMBED", stdout); | |
1190 | #endif | |
1191 | #ifdef MULTIPLICITY | |
1192 | fputs(" MULTIPLICITY", stdout); | |
1193 | #endif | |
1194 | #endif | |
1195 | ||
ab821d7f | 1196 | #if defined(LOCAL_PATCH_COUNT) |
1197 | if (LOCAL_PATCH_COUNT > 0) | |
1198 | { int i; | |
1199 | fputs("\n\tLocally applied patches:\n", stdout); | |
1200 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { | |
1201 | if (Ilocalpatches[i]) | |
1202 | fprintf(stdout, "\t %s\n", Ilocalpatches[i]); | |
1203 | } | |
1204 | } | |
1205 | #endif | |
1206 | printf("\n\tbuilt under %s",OSNAME); | |
1207 | #ifdef __DATE__ | |
1208 | # ifdef __TIME__ | |
1209 | printf(" at %s %s",__DATE__,__TIME__); | |
1210 | # else | |
1211 | printf(" on %s",__DATE__); | |
1212 | # endif | |
1213 | #endif | |
96436eeb | 1214 | fputs("\n\t+ suidperl security patch", stdout); |
1a30305b | 1215 | fputs("\n\nCopyright 1987-1996, Larry Wall\n",stdout); |
79072805 LW |
1216 | #ifdef MSDOS |
1217 | fputs("MS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n", | |
1218 | stdout); | |
4633a7c4 | 1219 | #endif |
79072805 | 1220 | #ifdef OS2 |
1a30305b | 1221 | fputs("OS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" |
1222 | "Version 5 port Copyright (c) 1994-1995, Andreas Kaiser\n", stdout); | |
79072805 | 1223 | #endif |
79072805 | 1224 | #ifdef atarist |
1a30305b | 1225 | fputs("atariST series port, ++jrb bammi@cadence.com\n", stdout); |
79072805 LW |
1226 | #endif |
1227 | fputs("\n\ | |
1228 | Perl may be copied only under the terms of either the Artistic License or the\n\ | |
1a30305b | 1229 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n",stdout); |
79072805 LW |
1230 | #ifdef MSDOS |
1231 | usage(origargv[0]); | |
1232 | #endif | |
1233 | exit(0); | |
1234 | case 'w': | |
1235 | dowarn = TRUE; | |
1236 | s++; | |
1237 | return s; | |
a0d0e21e | 1238 | case '*': |
79072805 LW |
1239 | case ' ': |
1240 | if (s[1] == '-') /* Additional switches on #! line. */ | |
1241 | return s+2; | |
1242 | break; | |
a0d0e21e | 1243 | case '-': |
79072805 LW |
1244 | case 0: |
1245 | case '\n': | |
1246 | case '\t': | |
1247 | break; | |
a0d0e21e LW |
1248 | case 'P': |
1249 | if (preprocess) | |
1250 | return s+1; | |
1251 | /* FALL THROUGH */ | |
79072805 | 1252 | default: |
a0d0e21e | 1253 | croak("Can't emulate -%.1s on #! line",s); |
79072805 LW |
1254 | } |
1255 | return Nullch; | |
1256 | } | |
1257 | ||
1258 | /* compliments of Tom Christiansen */ | |
1259 | ||
1260 | /* unexec() can be found in the Gnu emacs distribution */ | |
1261 | ||
1262 | void | |
1263 | my_unexec() | |
1264 | { | |
1265 | #ifdef UNEXEC | |
1266 | int status; | |
1267 | extern int etext; | |
1268 | ||
1269 | sprintf (buf, "%s.perldump", origfilename); | |
1270 | sprintf (tokenbuf, "%s/perl", BIN); | |
1271 | ||
1272 | status = unexec(buf, tokenbuf, &etext, sbrk(0), 0); | |
1273 | if (status) | |
1274 | fprintf(stderr, "unexec of %s into %s failed!\n", tokenbuf, buf); | |
a0d0e21e | 1275 | exit(status); |
79072805 | 1276 | #else |
a5f75d66 AD |
1277 | # ifdef VMS |
1278 | # include <lib$routines.h> | |
1279 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ | |
1280 | #else | |
79072805 LW |
1281 | ABORT(); /* for use with undump */ |
1282 | #endif | |
a5f75d66 | 1283 | #endif |
79072805 LW |
1284 | } |
1285 | ||
1286 | static void | |
1287 | init_main_stash() | |
1288 | { | |
463ee0b2 LW |
1289 | GV *gv; |
1290 | curstash = defstash = newHV(); | |
79072805 | 1291 | curstname = newSVpv("main",4); |
adbc6bb1 LW |
1292 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
1293 | SvREFCNT_dec(GvHV(gv)); | |
1294 | GvHV(gv) = (HV*)SvREFCNT_inc(defstash); | |
463ee0b2 | 1295 | SvREADONLY_on(gv); |
a0d0e21e | 1296 | HvNAME(defstash) = savepv("main"); |
85e6fe83 | 1297 | incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); |
a5f75d66 | 1298 | GvMULTI_on(incgv); |
a0d0e21e | 1299 | defgv = gv_fetchpv("_",TRUE, SVt_PVAV); |
4633a7c4 | 1300 | errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); |
a5f75d66 | 1301 | GvMULTI_on(errgv); |
8990e307 LW |
1302 | curstash = defstash; |
1303 | compiling.cop_stash = defstash; | |
adbc6bb1 | 1304 | debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); |
4633a7c4 LW |
1305 | /* We must init $/ before switches are processed. */ |
1306 | sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1); | |
79072805 LW |
1307 | } |
1308 | ||
a0d0e21e LW |
1309 | #ifdef CAN_PROTOTYPE |
1310 | static void | |
1311 | open_script(char *scriptname, bool dosearch, SV *sv) | |
1312 | #else | |
79072805 LW |
1313 | static void |
1314 | open_script(scriptname,dosearch,sv) | |
1315 | char *scriptname; | |
1316 | bool dosearch; | |
1317 | SV *sv; | |
a0d0e21e | 1318 | #endif |
79072805 LW |
1319 | { |
1320 | char *xfound = Nullch; | |
1321 | char *xfailed = Nullch; | |
1322 | register char *s; | |
1323 | I32 len; | |
a38d6535 LW |
1324 | int retval; |
1325 | #if defined(DOSISH) && !defined(OS2) && !defined(atarist) | |
1326 | #define SEARCH_EXTS ".bat", ".cmd", NULL | |
1327 | #endif | |
ab821d7f | 1328 | #ifdef VMS |
1329 | # define SEARCH_EXTS ".pl", ".com", NULL | |
1330 | #endif | |
a38d6535 LW |
1331 | /* additional extensions to try in each dir if scriptname not found */ |
1332 | #ifdef SEARCH_EXTS | |
1333 | char *ext[] = { SEARCH_EXTS }; | |
1334 | int extidx = (strchr(scriptname,'.')) ? -1 : 0; /* has ext already */ | |
1335 | #endif | |
79072805 | 1336 | |
c07a80fd | 1337 | #ifdef VMS |
1338 | if (dosearch && !strpbrk(scriptname,":[</") && (my_getenv("DCL$PATH"))) { | |
1339 | int idx = 0; | |
1340 | ||
1341 | while (my_trnlnm("DCL$PATH",tokenbuf,idx++)) { | |
1342 | strcat(tokenbuf,scriptname); | |
1343 | #else /* !VMS */ | |
93a17b20 | 1344 | if (dosearch && !strchr(scriptname, '/') && (s = getenv("PATH"))) { |
79072805 LW |
1345 | |
1346 | bufend = s + strlen(s); | |
1347 | while (*s) { | |
1348 | #ifndef DOSISH | |
1349 | s = cpytill(tokenbuf,s,bufend,':',&len); | |
1350 | #else | |
1351 | #ifdef atarist | |
1352 | for (len = 0; *s && *s != ',' && *s != ';'; tokenbuf[len++] = *s++); | |
1353 | tokenbuf[len] = '\0'; | |
1354 | #else | |
1355 | for (len = 0; *s && *s != ';'; tokenbuf[len++] = *s++); | |
1356 | tokenbuf[len] = '\0'; | |
1357 | #endif | |
1358 | #endif | |
1359 | if (*s) | |
1360 | s++; | |
1361 | #ifndef DOSISH | |
1362 | if (len && tokenbuf[len-1] != '/') | |
1363 | #else | |
1364 | #ifdef atarist | |
1365 | if (len && ((tokenbuf[len-1] != '\\') && (tokenbuf[len-1] != '/'))) | |
1366 | #else | |
1367 | if (len && tokenbuf[len-1] != '\\') | |
1368 | #endif | |
1369 | #endif | |
1370 | (void)strcat(tokenbuf+len,"/"); | |
1371 | (void)strcat(tokenbuf+len,scriptname); | |
c07a80fd | 1372 | #endif /* !VMS */ |
a38d6535 LW |
1373 | |
1374 | #ifdef SEARCH_EXTS | |
1375 | len = strlen(tokenbuf); | |
1376 | if (extidx > 0) /* reset after previous loop */ | |
1377 | extidx = 0; | |
1378 | do { | |
1379 | #endif | |
1380 | DEBUG_p(fprintf(stderr,"Looking for %s\n",tokenbuf)); | |
1381 | retval = Stat(tokenbuf,&statbuf); | |
1382 | #ifdef SEARCH_EXTS | |
1383 | } while ( retval < 0 /* not there */ | |
1384 | && extidx>=0 && ext[extidx] /* try an extension? */ | |
1385 | && strcpy(tokenbuf+len, ext[extidx++]) | |
1386 | ); | |
1387 | #endif | |
1388 | if (retval < 0) | |
79072805 LW |
1389 | continue; |
1390 | if (S_ISREG(statbuf.st_mode) | |
1391 | && cando(S_IRUSR,TRUE,&statbuf) && cando(S_IXUSR,TRUE,&statbuf)) { | |
1392 | xfound = tokenbuf; /* bingo! */ | |
1393 | break; | |
1394 | } | |
1395 | if (!xfailed) | |
a0d0e21e | 1396 | xfailed = savepv(tokenbuf); |
79072805 LW |
1397 | } |
1398 | if (!xfound) | |
463ee0b2 | 1399 | croak("Can't execute %s", xfailed ? xfailed : scriptname ); |
79072805 LW |
1400 | if (xfailed) |
1401 | Safefree(xfailed); | |
1402 | scriptname = xfound; | |
1403 | } | |
1404 | ||
96436eeb | 1405 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { |
1406 | char *s = scriptname + 8; | |
1407 | fdscript = atoi(s); | |
1408 | while (isDIGIT(*s)) | |
1409 | s++; | |
1410 | if (*s) | |
1411 | scriptname = s + 1; | |
1412 | } | |
1413 | else | |
1414 | fdscript = -1; | |
ab821d7f | 1415 | origfilename = savepv(e_tmpname ? "-e" : scriptname); |
79072805 LW |
1416 | curcop->cop_filegv = gv_fetchfile(origfilename); |
1417 | if (strEQ(origfilename,"-")) | |
1418 | scriptname = ""; | |
96436eeb | 1419 | if (fdscript >= 0) { |
1420 | rsfp = fdopen(fdscript,"r"); | |
1421 | #if defined(HAS_FCNTL) && defined(F_SETFD) | |
1422 | fcntl(fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ | |
1423 | #endif | |
1424 | } | |
1425 | else if (preprocess) { | |
79072805 LW |
1426 | char *cpp = CPPSTDIN; |
1427 | ||
1428 | if (strEQ(cpp,"cppstdin")) | |
1429 | sprintf(tokenbuf, "%s/%s", SCRIPTDIR, cpp); | |
1430 | else | |
1431 | sprintf(tokenbuf, "%s", cpp); | |
1432 | sv_catpv(sv,"-I"); | |
fed7345c | 1433 | sv_catpv(sv,PRIVLIB_EXP); |
79072805 LW |
1434 | #ifdef MSDOS |
1435 | (void)sprintf(buf, "\ | |
1436 | sed %s -e \"/^[^#]/b\" \ | |
1437 | -e \"/^#[ ]*include[ ]/b\" \ | |
1438 | -e \"/^#[ ]*define[ ]/b\" \ | |
1439 | -e \"/^#[ ]*if[ ]/b\" \ | |
1440 | -e \"/^#[ ]*ifdef[ ]/b\" \ | |
1441 | -e \"/^#[ ]*ifndef[ ]/b\" \ | |
1442 | -e \"/^#[ ]*else/b\" \ | |
1443 | -e \"/^#[ ]*elif[ ]/b\" \ | |
1444 | -e \"/^#[ ]*undef[ ]/b\" \ | |
1445 | -e \"/^#[ ]*endif/b\" \ | |
1446 | -e \"s/^#.*//\" \ | |
1447 | %s | %s -C %s %s", | |
1448 | (doextract ? "-e \"1,/^#/d\n\"" : ""), | |
1449 | #else | |
1450 | (void)sprintf(buf, "\ | |
1451 | %s %s -e '/^[^#]/b' \ | |
1452 | -e '/^#[ ]*include[ ]/b' \ | |
1453 | -e '/^#[ ]*define[ ]/b' \ | |
1454 | -e '/^#[ ]*if[ ]/b' \ | |
1455 | -e '/^#[ ]*ifdef[ ]/b' \ | |
1456 | -e '/^#[ ]*ifndef[ ]/b' \ | |
1457 | -e '/^#[ ]*else/b' \ | |
1458 | -e '/^#[ ]*elif[ ]/b' \ | |
1459 | -e '/^#[ ]*undef[ ]/b' \ | |
1460 | -e '/^#[ ]*endif/b' \ | |
1461 | -e 's/^[ ]*#.*//' \ | |
1462 | %s | %s -C %s %s", | |
1463 | #ifdef LOC_SED | |
1464 | LOC_SED, | |
1465 | #else | |
1466 | "sed", | |
1467 | #endif | |
1468 | (doextract ? "-e '1,/^#/d\n'" : ""), | |
1469 | #endif | |
463ee0b2 | 1470 | scriptname, tokenbuf, SvPV(sv, na), CPPMINUS); |
79072805 LW |
1471 | doextract = FALSE; |
1472 | #ifdef IAMSUID /* actually, this is caught earlier */ | |
1473 | if (euid != uid && !euid) { /* if running suidperl */ | |
1474 | #ifdef HAS_SETEUID | |
1475 | (void)seteuid(uid); /* musn't stay setuid root */ | |
1476 | #else | |
1477 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1478 | (void)setreuid((Uid_t)-1, uid); |
1479 | #else | |
1480 | #ifdef HAS_SETRESUID | |
1481 | (void)setresuid((Uid_t)-1, uid, (Uid_t)-1); | |
79072805 LW |
1482 | #else |
1483 | setuid(uid); | |
1484 | #endif | |
1485 | #endif | |
85e6fe83 | 1486 | #endif |
79072805 | 1487 | if (geteuid() != uid) |
463ee0b2 | 1488 | croak("Can't do seteuid!\n"); |
79072805 LW |
1489 | } |
1490 | #endif /* IAMSUID */ | |
1491 | rsfp = my_popen(buf,"r"); | |
1492 | } | |
1493 | else if (!*scriptname) { | |
463ee0b2 | 1494 | taint_not("program input from stdin"); |
79072805 LW |
1495 | rsfp = stdin; |
1496 | } | |
96436eeb | 1497 | else { |
79072805 | 1498 | rsfp = fopen(scriptname,"r"); |
96436eeb | 1499 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
1500 | fcntl(fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ | |
1501 | #endif | |
1502 | } | |
45d8adaa | 1503 | if ((FILE*)rsfp == Nullfp) { |
13281fa4 | 1504 | #ifdef DOSUID |
a687059c | 1505 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
a0d0e21e | 1506 | if (euid && Stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 && |
13281fa4 | 1507 | statbuf.st_mode & (S_ISUID|S_ISGID)) { |
27e2fb84 | 1508 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c | 1509 | execv(buf, origargv); /* try again */ |
463ee0b2 | 1510 | croak("Can't do setuid\n"); |
13281fa4 LW |
1511 | } |
1512 | #endif | |
1513 | #endif | |
463ee0b2 | 1514 | croak("Can't open perl script \"%s\": %s\n", |
2304df62 | 1515 | SvPVX(GvSV(curcop->cop_filegv)), Strerror(errno)); |
13281fa4 | 1516 | } |
79072805 | 1517 | } |
8d063cd8 | 1518 | |
79072805 | 1519 | static void |
96436eeb | 1520 | validate_suid(validarg, scriptname) |
79072805 | 1521 | char *validarg; |
96436eeb | 1522 | char *scriptname; |
79072805 | 1523 | { |
96436eeb | 1524 | int which; |
1525 | ||
13281fa4 LW |
1526 | /* do we need to emulate setuid on scripts? */ |
1527 | ||
1528 | /* This code is for those BSD systems that have setuid #! scripts disabled | |
1529 | * in the kernel because of a security problem. Merely defining DOSUID | |
1530 | * in perl will not fix that problem, but if you have disabled setuid | |
1531 | * scripts in the kernel, this will attempt to emulate setuid and setgid | |
1532 | * on scripts that have those now-otherwise-useless bits set. The setuid | |
27e2fb84 LW |
1533 | * root version must be called suidperl or sperlN.NNN. If regular perl |
1534 | * discovers that it has opened a setuid script, it calls suidperl with | |
1535 | * the same argv that it had. If suidperl finds that the script it has | |
1536 | * just opened is NOT setuid root, it sets the effective uid back to the | |
1537 | * uid. We don't just make perl setuid root because that loses the | |
1538 | * effective uid we had before invoking perl, if it was different from the | |
1539 | * uid. | |
13281fa4 LW |
1540 | * |
1541 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must | |
1542 | * be defined in suidperl only. suidperl must be setuid root. The | |
1543 | * Configure script will set this up for you if you want it. | |
1544 | */ | |
a687059c | 1545 | |
13281fa4 | 1546 | #ifdef DOSUID |
a0d0e21e LW |
1547 | char *s; |
1548 | ||
1549 | if (Fstat(fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */ | |
463ee0b2 | 1550 | croak("Can't stat script \"%s\"",origfilename); |
96436eeb | 1551 | if (fdscript < 0 && statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 | 1552 | I32 len; |
13281fa4 | 1553 | |
a687059c | 1554 | #ifdef IAMSUID |
fe14fcc3 | 1555 | #ifndef HAS_SETREUID |
a687059c LW |
1556 | /* On this access check to make sure the directories are readable, |
1557 | * there is actually a small window that the user could use to make | |
1558 | * filename point to an accessible directory. So there is a faint | |
1559 | * chance that someone could execute a setuid script down in a | |
1560 | * non-accessible directory. I don't know what to do about that. | |
1561 | * But I don't think it's too important. The manual lies when | |
1562 | * it says access() is useful in setuid programs. | |
1563 | */ | |
463ee0b2 LW |
1564 | if (access(SvPVX(GvSV(curcop->cop_filegv)),1)) /*double check*/ |
1565 | croak("Permission denied"); | |
a687059c LW |
1566 | #else |
1567 | /* If we can swap euid and uid, then we can determine access rights | |
1568 | * with a simple stat of the file, and then compare device and | |
1569 | * inode to make sure we did stat() on the same file we opened. | |
1570 | * Then we just have to make sure he or she can execute it. | |
1571 | */ | |
1572 | { | |
1573 | struct stat tmpstatbuf; | |
1574 | ||
85e6fe83 LW |
1575 | if ( |
1576 | #ifdef HAS_SETREUID | |
1577 | setreuid(euid,uid) < 0 | |
a0d0e21e LW |
1578 | #else |
1579 | # if HAS_SETRESUID | |
85e6fe83 | 1580 | setresuid(euid,uid,(Uid_t)-1) < 0 |
a0d0e21e | 1581 | # endif |
85e6fe83 LW |
1582 | #endif |
1583 | || getuid() != euid || geteuid() != uid) | |
463ee0b2 | 1584 | croak("Can't swap uid and euid"); /* really paranoid */ |
a0d0e21e | 1585 | if (Stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0) |
463ee0b2 | 1586 | croak("Permission denied"); /* testing full pathname here */ |
a687059c LW |
1587 | if (tmpstatbuf.st_dev != statbuf.st_dev || |
1588 | tmpstatbuf.st_ino != statbuf.st_ino) { | |
1589 | (void)fclose(rsfp); | |
79072805 | 1590 | if (rsfp = my_popen("/bin/mail root","w")) { /* heh, heh */ |
a687059c LW |
1591 | fprintf(rsfp, |
1592 | "User %d tried to run dev %d ino %d in place of dev %d ino %d!\n\ | |
1593 | (Filename of set-id script was %s, uid %d gid %d.)\n\nSincerely,\nperl\n", | |
1594 | uid,tmpstatbuf.st_dev, tmpstatbuf.st_ino, | |
1595 | statbuf.st_dev, statbuf.st_ino, | |
463ee0b2 | 1596 | SvPVX(GvSV(curcop->cop_filegv)), |
20188a90 | 1597 | statbuf.st_uid, statbuf.st_gid); |
79072805 | 1598 | (void)my_pclose(rsfp); |
a687059c | 1599 | } |
463ee0b2 | 1600 | croak("Permission denied\n"); |
a687059c | 1601 | } |
85e6fe83 LW |
1602 | if ( |
1603 | #ifdef HAS_SETREUID | |
1604 | setreuid(uid,euid) < 0 | |
a0d0e21e LW |
1605 | #else |
1606 | # if defined(HAS_SETRESUID) | |
85e6fe83 | 1607 | setresuid(uid,euid,(Uid_t)-1) < 0 |
a0d0e21e | 1608 | # endif |
85e6fe83 LW |
1609 | #endif |
1610 | || getuid() != uid || geteuid() != euid) | |
463ee0b2 | 1611 | croak("Can't reswap uid and euid"); |
27e2fb84 | 1612 | if (!cando(S_IXUSR,FALSE,&statbuf)) /* can real uid exec? */ |
463ee0b2 | 1613 | croak("Permission denied\n"); |
a687059c | 1614 | } |
fe14fcc3 | 1615 | #endif /* HAS_SETREUID */ |
a687059c LW |
1616 | #endif /* IAMSUID */ |
1617 | ||
27e2fb84 | 1618 | if (!S_ISREG(statbuf.st_mode)) |
463ee0b2 | 1619 | croak("Permission denied"); |
27e2fb84 | 1620 | if (statbuf.st_mode & S_IWOTH) |
463ee0b2 | 1621 | croak("Setuid/gid script is writable by world"); |
13281fa4 | 1622 | doswitches = FALSE; /* -s is insecure in suid */ |
79072805 | 1623 | curcop->cop_line++; |
13281fa4 LW |
1624 | if (fgets(tokenbuf,sizeof tokenbuf, rsfp) == Nullch || |
1625 | strnNE(tokenbuf,"#!",2) ) /* required even on Sys V */ | |
463ee0b2 | 1626 | croak("No #! line"); |
663a0e37 LW |
1627 | s = tokenbuf+2; |
1628 | if (*s == ' ') s++; | |
45d8adaa | 1629 | while (!isSPACE(*s)) s++; |
27e2fb84 | 1630 | if (strnNE(s-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ |
463ee0b2 | 1631 | croak("Not a perl script"); |
a687059c | 1632 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 LW |
1633 | /* |
1634 | * #! arg must be what we saw above. They can invoke it by | |
1635 | * mentioning suidperl explicitly, but they may not add any strange | |
1636 | * arguments beyond what #! says if they do invoke suidperl that way. | |
1637 | */ | |
1638 | len = strlen(validarg); | |
1639 | if (strEQ(validarg," PHOOEY ") || | |
45d8adaa | 1640 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
463ee0b2 | 1641 | croak("Args must match #! line"); |
a687059c LW |
1642 | |
1643 | #ifndef IAMSUID | |
1644 | if (euid != uid && (statbuf.st_mode & S_ISUID) && | |
1645 | euid == statbuf.st_uid) | |
1646 | if (!do_undump) | |
463ee0b2 | 1647 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
1648 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1649 | #endif /* IAMSUID */ | |
13281fa4 LW |
1650 | |
1651 | if (euid) { /* oops, we're not the setuid root perl */ | |
a687059c | 1652 | (void)fclose(rsfp); |
13281fa4 | 1653 | #ifndef IAMSUID |
27e2fb84 | 1654 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c | 1655 | execv(buf, origargv); /* try again */ |
13281fa4 | 1656 | #endif |
463ee0b2 | 1657 | croak("Can't do setuid\n"); |
13281fa4 LW |
1658 | } |
1659 | ||
83025b21 | 1660 | if (statbuf.st_mode & S_ISGID && statbuf.st_gid != egid) { |
fe14fcc3 | 1661 | #ifdef HAS_SETEGID |
a687059c LW |
1662 | (void)setegid(statbuf.st_gid); |
1663 | #else | |
fe14fcc3 | 1664 | #ifdef HAS_SETREGID |
85e6fe83 LW |
1665 | (void)setregid((Gid_t)-1,statbuf.st_gid); |
1666 | #else | |
1667 | #ifdef HAS_SETRESGID | |
1668 | (void)setresgid((Gid_t)-1,statbuf.st_gid,(Gid_t)-1); | |
a687059c LW |
1669 | #else |
1670 | setgid(statbuf.st_gid); | |
1671 | #endif | |
1672 | #endif | |
85e6fe83 | 1673 | #endif |
83025b21 | 1674 | if (getegid() != statbuf.st_gid) |
463ee0b2 | 1675 | croak("Can't do setegid!\n"); |
83025b21 | 1676 | } |
a687059c LW |
1677 | if (statbuf.st_mode & S_ISUID) { |
1678 | if (statbuf.st_uid != euid) | |
fe14fcc3 | 1679 | #ifdef HAS_SETEUID |
a687059c LW |
1680 | (void)seteuid(statbuf.st_uid); /* all that for this */ |
1681 | #else | |
fe14fcc3 | 1682 | #ifdef HAS_SETREUID |
85e6fe83 LW |
1683 | (void)setreuid((Uid_t)-1,statbuf.st_uid); |
1684 | #else | |
1685 | #ifdef HAS_SETRESUID | |
1686 | (void)setresuid((Uid_t)-1,statbuf.st_uid,(Uid_t)-1); | |
a687059c LW |
1687 | #else |
1688 | setuid(statbuf.st_uid); | |
1689 | #endif | |
1690 | #endif | |
85e6fe83 | 1691 | #endif |
83025b21 | 1692 | if (geteuid() != statbuf.st_uid) |
463ee0b2 | 1693 | croak("Can't do seteuid!\n"); |
a687059c | 1694 | } |
83025b21 | 1695 | else if (uid) { /* oops, mustn't run as root */ |
fe14fcc3 | 1696 | #ifdef HAS_SETEUID |
85e6fe83 | 1697 | (void)seteuid((Uid_t)uid); |
a687059c | 1698 | #else |
fe14fcc3 | 1699 | #ifdef HAS_SETREUID |
85e6fe83 | 1700 | (void)setreuid((Uid_t)-1,(Uid_t)uid); |
a687059c | 1701 | #else |
85e6fe83 LW |
1702 | #ifdef HAS_SETRESUID |
1703 | (void)setresuid((Uid_t)-1,(Uid_t)uid,(Uid_t)-1); | |
1704 | #else | |
1705 | setuid((Uid_t)uid); | |
1706 | #endif | |
a687059c LW |
1707 | #endif |
1708 | #endif | |
83025b21 | 1709 | if (geteuid() != uid) |
463ee0b2 | 1710 | croak("Can't do seteuid!\n"); |
83025b21 | 1711 | } |
748a9306 | 1712 | init_ids(); |
27e2fb84 | 1713 | if (!cando(S_IXUSR,TRUE,&statbuf)) |
463ee0b2 | 1714 | croak("Permission denied\n"); /* they can't do this */ |
13281fa4 LW |
1715 | } |
1716 | #ifdef IAMSUID | |
1717 | else if (preprocess) | |
463ee0b2 | 1718 | croak("-P not allowed for setuid/setgid script\n"); |
96436eeb | 1719 | else if (fdscript >= 0) |
1720 | croak("fd script not allowed in suidperl\n"); | |
13281fa4 | 1721 | else |
463ee0b2 | 1722 | croak("Script is not setuid/setgid in suidperl\n"); |
96436eeb | 1723 | |
1724 | /* We absolutely must clear out any saved ids here, so we */ | |
1725 | /* exec the real perl, substituting fd script for scriptname. */ | |
1726 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ | |
1727 | rewind(rsfp); | |
1728 | for (which = 1; origargv[which] && origargv[which] != scriptname; which++) ; | |
1729 | if (!origargv[which]) | |
1730 | croak("Permission denied"); | |
1731 | (void)sprintf(buf, "/dev/fd/%d/%.127s", fileno(rsfp), origargv[which]); | |
1732 | origargv[which] = buf; | |
1733 | ||
1734 | #if defined(HAS_FCNTL) && defined(F_SETFD) | |
1735 | fcntl(fileno(rsfp),F_SETFD,0); /* ensure no close-on-exec */ | |
1736 | #endif | |
1737 | ||
1738 | (void)sprintf(tokenbuf, "%s/perl%s", BIN, patchlevel); | |
1739 | execv(tokenbuf, origargv); /* try again */ | |
1740 | croak("Can't do setuid\n"); | |
13281fa4 | 1741 | #endif /* IAMSUID */ |
a687059c | 1742 | #else /* !DOSUID */ |
a687059c LW |
1743 | if (euid != uid || egid != gid) { /* (suidperl doesn't exist, in fact) */ |
1744 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW | |
a0d0e21e | 1745 | Fstat(fileno(rsfp),&statbuf); /* may be either wrapped or real suid */ |
a687059c LW |
1746 | if ((euid != uid && euid == statbuf.st_uid && statbuf.st_mode & S_ISUID) |
1747 | || | |
1748 | (egid != gid && egid == statbuf.st_gid && statbuf.st_mode & S_ISGID) | |
1749 | ) | |
1750 | if (!do_undump) | |
463ee0b2 | 1751 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
1752 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1753 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ | |
1754 | /* not set-id, must be wrapped */ | |
a687059c | 1755 | } |
13281fa4 | 1756 | #endif /* DOSUID */ |
79072805 | 1757 | } |
13281fa4 | 1758 | |
79072805 LW |
1759 | static void |
1760 | find_beginning() | |
1761 | { | |
79072805 | 1762 | register char *s; |
33b78306 LW |
1763 | |
1764 | /* skip forward in input to the real script? */ | |
1765 | ||
463ee0b2 | 1766 | taint_not("-x"); |
33b78306 | 1767 | while (doextract) { |
79072805 | 1768 | if ((s = sv_gets(linestr, rsfp, 0)) == Nullch) |
463ee0b2 | 1769 | croak("No Perl script found in input\n"); |
33b78306 LW |
1770 | if (*s == '#' && s[1] == '!' && instr(s,"perl")) { |
1771 | ungetc('\n',rsfp); /* to keep line count right */ | |
1772 | doextract = FALSE; | |
1773 | if (s = instr(s,"perl -")) { | |
1774 | s += 6; | |
45d8adaa | 1775 | /*SUPPRESS 530*/ |
33b78306 LW |
1776 | while (s = moreswitches(s)) ; |
1777 | } | |
79072805 | 1778 | if (cddir && chdir(cddir) < 0) |
463ee0b2 | 1779 | croak("Can't chdir to %s",cddir); |
83025b21 LW |
1780 | } |
1781 | } | |
1782 | } | |
1783 | ||
79072805 | 1784 | static void |
748a9306 | 1785 | init_ids() |
352d5a3a | 1786 | { |
748a9306 LW |
1787 | uid = (int)getuid(); |
1788 | euid = (int)geteuid(); | |
1789 | gid = (int)getgid(); | |
1790 | egid = (int)getegid(); | |
1791 | #ifdef VMS | |
1792 | uid |= gid << 16; | |
1793 | euid |= egid << 16; | |
1794 | #endif | |
4633a7c4 | 1795 | tainting |= (uid && (euid != uid || egid != gid)); |
748a9306 | 1796 | } |
79072805 | 1797 | |
748a9306 LW |
1798 | static void |
1799 | init_debugger() | |
1800 | { | |
79072805 | 1801 | curstash = debstash; |
748a9306 | 1802 | dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); |
79072805 | 1803 | AvREAL_off(dbargs); |
a0d0e21e LW |
1804 | DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); |
1805 | DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); | |
748a9306 LW |
1806 | DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); |
1807 | DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); | |
c07a80fd | 1808 | sv_setiv(DBsingle, 0); |
748a9306 | 1809 | DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); |
c07a80fd | 1810 | sv_setiv(DBtrace, 0); |
748a9306 | 1811 | DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); |
c07a80fd | 1812 | sv_setiv(DBsignal, 0); |
79072805 | 1813 | curstash = defstash; |
352d5a3a LW |
1814 | } |
1815 | ||
79072805 | 1816 | static void |
8990e307 | 1817 | init_stacks() |
79072805 LW |
1818 | { |
1819 | stack = newAV(); | |
1820 | mainstack = stack; /* remember in case we switch stacks */ | |
1821 | AvREAL_off(stack); /* not a real array */ | |
a0d0e21e | 1822 | av_extend(stack,127); |
79072805 LW |
1823 | |
1824 | stack_base = AvARRAY(stack); | |
1825 | stack_sp = stack_base; | |
8990e307 | 1826 | stack_max = stack_base + 127; |
79072805 | 1827 | |
a0d0e21e | 1828 | New(54,markstack,64,I32); |
79072805 LW |
1829 | markstack_ptr = markstack; |
1830 | markstack_max = markstack + 64; | |
1831 | ||
a0d0e21e | 1832 | New(54,scopestack,32,I32); |
79072805 LW |
1833 | scopestack_ix = 0; |
1834 | scopestack_max = 32; | |
1835 | ||
1836 | New(54,savestack,128,ANY); | |
1837 | savestack_ix = 0; | |
1838 | savestack_max = 128; | |
1839 | ||
1840 | New(54,retstack,16,OP*); | |
1841 | retstack_ix = 0; | |
1842 | retstack_max = 16; | |
8d063cd8 | 1843 | |
a5f75d66 AD |
1844 | cxstack_max = 8192 / sizeof(CONTEXT) - 2; /* Use most of 8K. */ |
1845 | New(50,cxstack,cxstack_max + 1,CONTEXT); | |
8990e307 | 1846 | cxstack_ix = -1; |
8990e307 LW |
1847 | |
1848 | New(50,tmps_stack,128,SV*); | |
1849 | tmps_ix = -1; | |
1850 | tmps_max = 128; | |
1851 | ||
79072805 LW |
1852 | DEBUG( { |
1853 | New(51,debname,128,char); | |
1854 | New(52,debdelim,128,char); | |
1855 | } ) | |
378cc40b | 1856 | } |
33b78306 | 1857 | |
a0d0e21e | 1858 | static FILE *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
79072805 | 1859 | static void |
8990e307 LW |
1860 | init_lexer() |
1861 | { | |
a0d0e21e | 1862 | tmpfp = rsfp; |
8990e307 LW |
1863 | |
1864 | lex_start(linestr); | |
1865 | rsfp = tmpfp; | |
1866 | subname = newSVpv("main",4); | |
1867 | } | |
1868 | ||
1869 | static void | |
79072805 | 1870 | init_predump_symbols() |
45d8adaa | 1871 | { |
93a17b20 | 1872 | GV *tmpgv; |
a0d0e21e | 1873 | GV *othergv; |
79072805 | 1874 | |
85e6fe83 | 1875 | sv_setpvn(GvSV(gv_fetchpv("\"", TRUE, SVt_PV)), " ", 1); |
79072805 | 1876 | |
85e6fe83 | 1877 | stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
a5f75d66 | 1878 | GvMULTI_on(stdingv); |
a0d0e21e | 1879 | IoIFP(GvIOp(stdingv)) = stdin; |
adbc6bb1 | 1880 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 | 1881 | GvMULTI_on(tmpgv); |
a0d0e21e | 1882 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(stdingv)); |
79072805 | 1883 | |
85e6fe83 | 1884 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 | 1885 | GvMULTI_on(tmpgv); |
a0d0e21e | 1886 | IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = stdout; |
4633a7c4 | 1887 | setdefout(tmpgv); |
adbc6bb1 | 1888 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 | 1889 | GvMULTI_on(tmpgv); |
a0d0e21e | 1890 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(defoutgv)); |
79072805 | 1891 | |
a0d0e21e | 1892 | othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
a5f75d66 | 1893 | GvMULTI_on(othergv); |
a0d0e21e | 1894 | IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = stderr; |
adbc6bb1 | 1895 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 | 1896 | GvMULTI_on(tmpgv); |
a0d0e21e | 1897 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv)); |
79072805 LW |
1898 | |
1899 | statname = NEWSV(66,0); /* last filename we did stat on */ | |
ab821d7f | 1900 | |
1901 | osname = savepv(OSNAME); | |
79072805 | 1902 | } |
33b78306 | 1903 | |
79072805 LW |
1904 | static void |
1905 | init_postdump_symbols(argc,argv,env) | |
1906 | register int argc; | |
1907 | register char **argv; | |
1908 | register char **env; | |
33b78306 | 1909 | { |
79072805 LW |
1910 | char *s; |
1911 | SV *sv; | |
1912 | GV* tmpgv; | |
fe14fcc3 | 1913 | |
79072805 LW |
1914 | argc--,argv++; /* skip name of script */ |
1915 | if (doswitches) { | |
1916 | for (; argc > 0 && **argv == '-'; argc--,argv++) { | |
1917 | if (!argv[0][1]) | |
1918 | break; | |
1919 | if (argv[0][1] == '-') { | |
1920 | argc--,argv++; | |
1921 | break; | |
1922 | } | |
93a17b20 | 1923 | if (s = strchr(argv[0], '=')) { |
79072805 | 1924 | *s++ = '\0'; |
85e6fe83 | 1925 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 LW |
1926 | } |
1927 | else | |
85e6fe83 | 1928 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 | 1929 | } |
79072805 LW |
1930 | } |
1931 | toptarget = NEWSV(0,0); | |
1932 | sv_upgrade(toptarget, SVt_PVFM); | |
1933 | sv_setpvn(toptarget, "", 0); | |
748a9306 | 1934 | bodytarget = NEWSV(0,0); |
79072805 LW |
1935 | sv_upgrade(bodytarget, SVt_PVFM); |
1936 | sv_setpvn(bodytarget, "", 0); | |
1937 | formtarget = bodytarget; | |
1938 | ||
79072805 | 1939 | tainted = 1; |
85e6fe83 | 1940 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
79072805 LW |
1941 | sv_setpv(GvSV(tmpgv),origfilename); |
1942 | magicname("0", "0", 1); | |
1943 | } | |
85e6fe83 | 1944 | if (tmpgv = gv_fetchpv("\024",TRUE, SVt_PV)) |
79072805 | 1945 | time(&basetime); |
85e6fe83 | 1946 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
79072805 | 1947 | sv_setpv(GvSV(tmpgv),origargv[0]); |
85e6fe83 | 1948 | if (argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { |
a5f75d66 | 1949 | GvMULTI_on(argvgv); |
79072805 LW |
1950 | (void)gv_AVadd(argvgv); |
1951 | av_clear(GvAVn(argvgv)); | |
1952 | for (; argc > 0; argc--,argv++) { | |
a0d0e21e | 1953 | av_push(GvAVn(argvgv),newSVpv(argv[0],0)); |
79072805 LW |
1954 | } |
1955 | } | |
85e6fe83 | 1956 | if (envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 | 1957 | HV *hv; |
a5f75d66 | 1958 | GvMULTI_on(envgv); |
79072805 | 1959 | hv = GvHVn(envgv); |
463ee0b2 | 1960 | hv_clear(hv); |
a0d0e21e | 1961 | #ifndef VMS /* VMS doesn't have environ array */ |
4633a7c4 LW |
1962 | /* Note that if the supplied env parameter is actually a copy |
1963 | of the global environ then it may now point to free'd memory | |
1964 | if the environment has been modified since. To avoid this | |
1965 | problem we treat env==NULL as meaning 'use the default' | |
1966 | */ | |
1967 | if (!env) | |
1968 | env = environ; | |
8990e307 | 1969 | if (env != environ) { |
79072805 | 1970 | environ[0] = Nullch; |
8990e307 LW |
1971 | hv_magic(hv, envgv, 'E'); |
1972 | } | |
79072805 | 1973 | for (; *env; env++) { |
93a17b20 | 1974 | if (!(s = strchr(*env,'='))) |
79072805 LW |
1975 | continue; |
1976 | *s++ = '\0'; | |
1977 | sv = newSVpv(s--,0); | |
85e6fe83 | 1978 | sv_magic(sv, sv, 'e', *env, s - *env); |
79072805 LW |
1979 | (void)hv_store(hv, *env, s - *env, sv, 0); |
1980 | *s = '='; | |
fe14fcc3 | 1981 | } |
4550b24a | 1982 | #endif |
1983 | #ifdef DYNAMIC_ENV_FETCH | |
1984 | HvNAME(hv) = savepv(ENV_HV_NAME); | |
1985 | #endif | |
f511e57f | 1986 | hv_magic(hv, envgv, 'E'); |
79072805 | 1987 | } |
79072805 | 1988 | tainted = 0; |
85e6fe83 | 1989 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
79072805 LW |
1990 | sv_setiv(GvSV(tmpgv),(I32)getpid()); |
1991 | ||
33b78306 | 1992 | } |
34de22dd | 1993 | |
79072805 LW |
1994 | static void |
1995 | init_perllib() | |
34de22dd | 1996 | { |
85e6fe83 LW |
1997 | char *s; |
1998 | if (!tainting) { | |
1999 | s = getenv("PERL5LIB"); | |
2000 | if (s) | |
2001 | incpush(s); | |
2002 | else | |
2003 | incpush(getenv("PERLLIB")); | |
2004 | } | |
34de22dd | 2005 | |
4633a7c4 LW |
2006 | #ifdef APPLLIB_EXP |
2007 | incpush(APPLLIB_EXP); | |
16d20bd9 | 2008 | #endif |
4633a7c4 | 2009 | |
fed7345c AD |
2010 | #ifdef ARCHLIB_EXP |
2011 | incpush(ARCHLIB_EXP); | |
a0d0e21e | 2012 | #endif |
fed7345c AD |
2013 | #ifndef PRIVLIB_EXP |
2014 | #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" | |
34de22dd | 2015 | #endif |
fed7345c | 2016 | incpush(PRIVLIB_EXP); |
4633a7c4 LW |
2017 | |
2018 | #ifdef SITEARCH_EXP | |
2019 | incpush(SITEARCH_EXP); | |
2020 | #endif | |
2021 | #ifdef SITELIB_EXP | |
2022 | incpush(SITELIB_EXP); | |
2023 | #endif | |
2024 | #ifdef OLDARCHLIB_EXP /* 5.00[01] compatibility */ | |
2025 | incpush(OLDARCHLIB_EXP); | |
2026 | #endif | |
a0d0e21e | 2027 | |
4633a7c4 LW |
2028 | if (!tainting) |
2029 | incpush("."); | |
34de22dd | 2030 | } |
93a17b20 LW |
2031 | |
2032 | void | |
2033 | calllist(list) | |
2034 | AV* list; | |
2035 | { | |
a5f75d66 | 2036 | Sigjmp_buf oldtop; |
a0d0e21e LW |
2037 | STRLEN len; |
2038 | line_t oldline = curcop->cop_line; | |
93a17b20 | 2039 | |
a5f75d66 | 2040 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
93a17b20 | 2041 | |
8990e307 LW |
2042 | while (AvFILL(list) >= 0) { |
2043 | CV *cv = (CV*)av_shift(list); | |
93a17b20 | 2044 | |
8990e307 | 2045 | SAVEFREESV(cv); |
a0d0e21e | 2046 | |
a5f75d66 | 2047 | switch (Sigsetjmp(top_env,1)) { |
748a9306 | 2048 | case 0: { |
4633a7c4 | 2049 | SV* atsv = GvSV(errgv); |
748a9306 LW |
2050 | PUSHMARK(stack_sp); |
2051 | perl_call_sv((SV*)cv, G_EVAL|G_DISCARD); | |
2052 | (void)SvPV(atsv, len); | |
2053 | if (len) { | |
a5f75d66 | 2054 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
748a9306 LW |
2055 | curcop = &compiling; |
2056 | curcop->cop_line = oldline; | |
2057 | if (list == beginav) | |
2058 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); | |
2059 | else | |
2060 | sv_catpv(atsv, "END failed--cleanup aborted"); | |
2061 | croak("%s", SvPVX(atsv)); | |
2062 | } | |
a0d0e21e | 2063 | } |
85e6fe83 LW |
2064 | break; |
2065 | case 1: | |
748a9306 | 2066 | #ifdef VMS |
85e6fe83 | 2067 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 LW |
2068 | #else |
2069 | statusvalue = 1; | |
2070 | #endif | |
85e6fe83 LW |
2071 | /* FALL THROUGH */ |
2072 | case 2: | |
2073 | /* my_exit() was called */ | |
2074 | curstash = defstash; | |
2075 | if (endav) | |
2076 | calllist(endav); | |
a0d0e21e | 2077 | FREETMPS; |
a5f75d66 | 2078 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
2079 | curcop = &compiling; |
2080 | curcop->cop_line = oldline; | |
85e6fe83 LW |
2081 | if (statusvalue) { |
2082 | if (list == beginav) | |
a0d0e21e | 2083 | croak("BEGIN failed--compilation aborted"); |
85e6fe83 | 2084 | else |
a0d0e21e | 2085 | croak("END failed--cleanup aborted"); |
85e6fe83 | 2086 | } |
85e6fe83 LW |
2087 | my_exit(statusvalue); |
2088 | /* NOTREACHED */ | |
2089 | return; | |
2090 | case 3: | |
2091 | if (!restartop) { | |
2092 | fprintf(stderr, "panic: restartop\n"); | |
a0d0e21e | 2093 | FREETMPS; |
85e6fe83 LW |
2094 | break; |
2095 | } | |
a5f75d66 | 2096 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
2097 | curcop = &compiling; |
2098 | curcop->cop_line = oldline; | |
a5f75d66 | 2099 | Siglongjmp(top_env, 3); |
8990e307 | 2100 | } |
93a17b20 LW |
2101 | } |
2102 | ||
a5f75d66 | 2103 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
93a17b20 LW |
2104 | } |
2105 |