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 *)); |
a0d0e21e | 50 | static void validate_suid _((char *)); |
79072805 | 51 | |
93a17b20 | 52 | PerlInterpreter * |
79072805 LW |
53 | perl_alloc() |
54 | { | |
93a17b20 | 55 | PerlInterpreter *sv_interp; |
79072805 | 56 | |
8990e307 | 57 | curinterp = 0; |
93a17b20 | 58 | New(53, sv_interp, 1, PerlInterpreter); |
79072805 LW |
59 | return sv_interp; |
60 | } | |
61 | ||
62 | void | |
63 | perl_construct( sv_interp ) | |
93a17b20 | 64 | register PerlInterpreter *sv_interp; |
79072805 LW |
65 | { |
66 | if (!(curinterp = sv_interp)) | |
67 | return; | |
68 | ||
8990e307 | 69 | #ifdef MULTIPLICITY |
93a17b20 | 70 | Zero(sv_interp, 1, PerlInterpreter); |
8990e307 | 71 | #endif |
79072805 LW |
72 | |
73 | /* Init the real globals? */ | |
74 | if (!linestr) { | |
75 | linestr = NEWSV(65,80); | |
ed6116ce | 76 | sv_upgrade(linestr,SVt_PVIV); |
79072805 LW |
77 | |
78 | SvREADONLY_on(&sv_undef); | |
79 | ||
80 | sv_setpv(&sv_no,No); | |
463ee0b2 | 81 | SvNV(&sv_no); |
79072805 LW |
82 | SvREADONLY_on(&sv_no); |
83 | ||
84 | sv_setpv(&sv_yes,Yes); | |
463ee0b2 | 85 | SvNV(&sv_yes); |
79072805 LW |
86 | SvREADONLY_on(&sv_yes); |
87 | ||
c07a80fd | 88 | nrs = newSVpv("\n", 1); |
89 | rs = SvREFCNT_inc(nrs); | |
90 | ||
79072805 LW |
91 | #ifdef MSDOS |
92 | /* | |
93 | * There is no way we can refer to them from Perl so close them to save | |
94 | * space. The other alternative would be to provide STDAUX and STDPRN | |
95 | * filehandles. | |
96 | */ | |
97 | (void)fclose(stdaux); | |
98 | (void)fclose(stdprn); | |
99 | #endif | |
100 | } | |
101 | ||
8990e307 | 102 | #ifdef MULTIPLICITY |
79072805 | 103 | chopset = " \n-"; |
463ee0b2 | 104 | copline = NOLINE; |
79072805 | 105 | curcop = &compiling; |
1a30305b | 106 | dbargs = 0; |
79072805 LW |
107 | dlmax = 128; |
108 | laststatval = -1; | |
109 | laststype = OP_STAT; | |
110 | maxscream = -1; | |
111 | maxsysfd = MAXSYSFD; | |
79072805 | 112 | rsfp = Nullfp; |
463ee0b2 | 113 | statname = Nullsv; |
79072805 | 114 | tmps_floor = -1; |
79072805 LW |
115 | #endif |
116 | ||
748a9306 | 117 | init_ids(); |
a5f75d66 AD |
118 | |
119 | #if defined(SUBVERSION) && SUBVERSION > 0 | |
120 | sprintf(patchlevel, "%7.5f", 5.0 + (PATCHLEVEL / 1000.0) | |
121 | + (SUBVERSION / 100000.0)); | |
122 | #else | |
a0d0e21e | 123 | sprintf(patchlevel, "%5.3f", 5.0 + (PATCHLEVEL / 1000.0)); |
a5f75d66 | 124 | #endif |
79072805 | 125 | |
ab821d7f | 126 | #if defined(LOCAL_PATCH_COUNT) |
127 | Ilocalpatches = local_patches; /* For possible -v */ | |
128 | #endif | |
129 | ||
79072805 | 130 | fdpid = newAV(); /* for remembering popen pids by fd */ |
463ee0b2 | 131 | pidstatus = newHV();/* for remembering status of dead pids */ |
8990e307 LW |
132 | |
133 | init_stacks(); | |
134 | ENTER; | |
79072805 LW |
135 | } |
136 | ||
137 | void | |
748a9306 | 138 | perl_destruct(sv_interp) |
93a17b20 | 139 | register PerlInterpreter *sv_interp; |
79072805 | 140 | { |
748a9306 | 141 | int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
8990e307 | 142 | I32 last_sv_count; |
a0d0e21e | 143 | HV *hv; |
8990e307 | 144 | |
79072805 LW |
145 | if (!(curinterp = sv_interp)) |
146 | return; | |
748a9306 LW |
147 | |
148 | destruct_level = perl_destruct_level; | |
4633a7c4 LW |
149 | #ifdef DEBUGGING |
150 | { | |
151 | char *s; | |
152 | if (s = getenv("PERL_DESTRUCT_LEVEL")) | |
153 | destruct_level = atoi(s); | |
154 | } | |
155 | #endif | |
156 | ||
8990e307 | 157 | LEAVE; |
a0d0e21e LW |
158 | FREETMPS; |
159 | ||
160 | if (sv_objcount) { | |
161 | /* We must account for everything. First the syntax tree. */ | |
162 | if (main_root) { | |
163 | curpad = AvARRAY(comppad); | |
164 | op_free(main_root); | |
165 | main_root = 0; | |
166 | } | |
167 | } | |
168 | if (sv_objcount) { | |
169 | /* | |
170 | * Try to destruct global references. We do this first so that the | |
171 | * destructors and destructees still exist. Some sv's might remain. | |
172 | * Non-referenced objects are on their own. | |
173 | */ | |
174 | ||
175 | dirty = TRUE; | |
176 | sv_clean_objs(); | |
8990e307 LW |
177 | } |
178 | ||
a0d0e21e | 179 | if (destruct_level == 0){ |
8990e307 | 180 | |
a0d0e21e LW |
181 | DEBUG_P(debprofdump()); |
182 | ||
183 | /* The exit() function will do everything that needs doing. */ | |
184 | return; | |
185 | } | |
186 | ||
187 | /* Prepare to destruct main symbol table. */ | |
188 | hv = defstash; | |
85e6fe83 | 189 | defstash = 0; |
a0d0e21e LW |
190 | SvREFCNT_dec(hv); |
191 | ||
192 | FREETMPS; | |
193 | if (destruct_level >= 2) { | |
194 | if (scopestack_ix != 0) | |
195 | warn("Unbalanced scopes: %d more ENTERs than LEAVEs\n", scopestack_ix); | |
196 | if (savestack_ix != 0) | |
197 | warn("Unbalanced saves: %d more saves than restores\n", savestack_ix); | |
198 | if (tmps_floor != -1) | |
199 | warn("Unbalanced tmps: %d more allocs than frees\n", tmps_floor + 1); | |
200 | if (cxstack_ix != -1) | |
201 | warn("Unbalanced context: %d more PUSHes than POPs\n", cxstack_ix + 1); | |
202 | } | |
8990e307 LW |
203 | |
204 | /* Now absolutely destruct everything, somehow or other, loops or no. */ | |
8990e307 LW |
205 | last_sv_count = 0; |
206 | while (sv_count != 0 && sv_count != last_sv_count) { | |
207 | last_sv_count = sv_count; | |
208 | sv_clean_all(); | |
209 | } | |
210 | if (sv_count != 0) | |
211 | warn("Scalars leaked: %d\n", sv_count); | |
4633a7c4 | 212 | sv_free_arenas(); |
a0d0e21e LW |
213 | |
214 | DEBUG_P(debprofdump()); | |
79072805 LW |
215 | } |
216 | ||
217 | void | |
218 | perl_free(sv_interp) | |
93a17b20 | 219 | PerlInterpreter *sv_interp; |
79072805 LW |
220 | { |
221 | if (!(curinterp = sv_interp)) | |
222 | return; | |
223 | Safefree(sv_interp); | |
224 | } | |
ecfc5424 | 225 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) |
a0d0e21e LW |
226 | char *getenv _((char *)); /* Usually in <stdlib.h> */ |
227 | #endif | |
79072805 LW |
228 | |
229 | int | |
a0d0e21e | 230 | perl_parse(sv_interp, xsinit, argc, argv, env) |
93a17b20 | 231 | PerlInterpreter *sv_interp; |
a0d0e21e LW |
232 | void (*xsinit)_((void)); |
233 | int argc; | |
234 | char **argv; | |
79072805 | 235 | char **env; |
8d063cd8 | 236 | { |
79072805 | 237 | register SV *sv; |
8d063cd8 | 238 | register char *s; |
1a30305b | 239 | char *scriptname = NULL; |
a0d0e21e | 240 | VOL bool dosearch = FALSE; |
13281fa4 | 241 | char *validarg = ""; |
748a9306 | 242 | AV* comppadlist; |
8d063cd8 | 243 | |
a687059c LW |
244 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
245 | #ifdef IAMSUID | |
246 | #undef IAMSUID | |
463ee0b2 | 247 | croak("suidperl is no longer needed since the kernel can now execute\n\ |
a687059c LW |
248 | setuid perl scripts securely.\n"); |
249 | #endif | |
250 | #endif | |
251 | ||
79072805 LW |
252 | if (!(curinterp = sv_interp)) |
253 | return 255; | |
254 | ||
ac58e20f LW |
255 | origargv = argv; |
256 | origargc = argc; | |
a0d0e21e | 257 | #ifndef VMS /* VMS doesn't have environ array */ |
fe14fcc3 | 258 | origenviron = environ; |
a0d0e21e | 259 | #endif |
ab821d7f | 260 | e_tmpname = Nullch; |
a0d0e21e LW |
261 | |
262 | if (do_undump) { | |
263 | ||
264 | /* Come here if running an undumped a.out. */ | |
265 | ||
266 | origfilename = savepv(argv[0]); | |
267 | do_undump = FALSE; | |
268 | cxstack_ix = -1; /* start label stack again */ | |
748a9306 | 269 | init_ids(); |
a0d0e21e LW |
270 | init_postdump_symbols(argc,argv,env); |
271 | return 0; | |
272 | } | |
273 | ||
274 | if (main_root) | |
275 | op_free(main_root); | |
276 | main_root = 0; | |
79072805 | 277 | |
a5f75d66 | 278 | switch (Sigsetjmp(top_env,1)) { |
79072805 | 279 | case 1: |
748a9306 | 280 | #ifdef VMS |
79072805 | 281 | statusvalue = 255; |
748a9306 LW |
282 | #else |
283 | statusvalue = 1; | |
284 | #endif | |
79072805 | 285 | case 2: |
8990e307 LW |
286 | curstash = defstash; |
287 | if (endav) | |
288 | calllist(endav); | |
79072805 LW |
289 | return(statusvalue); /* my_exit() was called */ |
290 | case 3: | |
291 | fprintf(stderr, "panic: top_env\n"); | |
8990e307 | 292 | return 1; |
79072805 LW |
293 | } |
294 | ||
79072805 LW |
295 | sv_setpvn(linestr,"",0); |
296 | sv = newSVpv("",0); /* first used for -I flags */ | |
8990e307 | 297 | SAVEFREESV(sv); |
79072805 | 298 | init_main_stash(); |
33b78306 | 299 | for (argc--,argv++; argc > 0; argc--,argv++) { |
8d063cd8 LW |
300 | if (argv[0][0] != '-' || !argv[0][1]) |
301 | break; | |
13281fa4 LW |
302 | #ifdef DOSUID |
303 | if (*validarg) | |
304 | validarg = " PHOOEY "; | |
305 | else | |
306 | validarg = argv[0]; | |
307 | #endif | |
308 | s = argv[0]+1; | |
8d063cd8 | 309 | reswitch: |
13281fa4 | 310 | switch (*s) { |
27e2fb84 | 311 | case '0': |
2304df62 | 312 | case 'F': |
378cc40b | 313 | case 'a': |
33b78306 | 314 | case 'c': |
a687059c | 315 | case 'd': |
8d063cd8 | 316 | case 'D': |
4633a7c4 | 317 | case 'h': |
33b78306 | 318 | case 'i': |
fe14fcc3 | 319 | case 'l': |
1a30305b | 320 | case 'M': |
321 | case 'm': | |
33b78306 LW |
322 | case 'n': |
323 | case 'p': | |
79072805 | 324 | case 's': |
463ee0b2 | 325 | case 'T': |
33b78306 LW |
326 | case 'u': |
327 | case 'U': | |
328 | case 'v': | |
329 | case 'w': | |
330 | if (s = moreswitches(s)) | |
331 | goto reswitch; | |
8d063cd8 | 332 | break; |
33b78306 | 333 | |
8d063cd8 | 334 | case 'e': |
a687059c | 335 | if (euid != uid || egid != gid) |
463ee0b2 | 336 | croak("No -e allowed in setuid scripts"); |
8d063cd8 | 337 | if (!e_fp) { |
a0d0e21e | 338 | e_tmpname = savepv(TMPPATH); |
a687059c | 339 | (void)mktemp(e_tmpname); |
83025b21 | 340 | if (!*e_tmpname) |
463ee0b2 | 341 | croak("Can't mktemp()"); |
8d063cd8 | 342 | e_fp = fopen(e_tmpname,"w"); |
33b78306 | 343 | if (!e_fp) |
463ee0b2 | 344 | croak("Cannot open temporary file"); |
8d063cd8 | 345 | } |
33b78306 | 346 | if (argv[1]) { |
8d063cd8 | 347 | fputs(argv[1],e_fp); |
33b78306 LW |
348 | argc--,argv++; |
349 | } | |
a687059c | 350 | (void)putc('\n', e_fp); |
8d063cd8 LW |
351 | break; |
352 | case 'I': | |
463ee0b2 | 353 | taint_not("-I"); |
79072805 LW |
354 | sv_catpv(sv,"-"); |
355 | sv_catpv(sv,s); | |
356 | sv_catpv(sv," "); | |
a687059c | 357 | if (*++s) { |
a0d0e21e | 358 | av_push(GvAVn(incgv),newSVpv(s,0)); |
378cc40b | 359 | } |
33b78306 | 360 | else if (argv[1]) { |
a0d0e21e | 361 | av_push(GvAVn(incgv),newSVpv(argv[1],0)); |
79072805 | 362 | sv_catpv(sv,argv[1]); |
8d063cd8 | 363 | argc--,argv++; |
79072805 | 364 | sv_catpv(sv," "); |
8d063cd8 LW |
365 | } |
366 | break; | |
8d063cd8 | 367 | case 'P': |
463ee0b2 | 368 | taint_not("-P"); |
8d063cd8 | 369 | preprocess = TRUE; |
13281fa4 | 370 | s++; |
8d063cd8 | 371 | goto reswitch; |
378cc40b | 372 | case 'S': |
463ee0b2 | 373 | taint_not("-S"); |
378cc40b | 374 | dosearch = TRUE; |
13281fa4 | 375 | s++; |
378cc40b | 376 | goto reswitch; |
1a30305b | 377 | case 'V': |
378 | if (!preambleav) | |
379 | preambleav = newAV(); | |
380 | av_push(preambleav, newSVpv("use Config qw(myconfig config_vars)",0)); | |
381 | if (*++s != ':') { | |
382 | Sv = newSVpv("print myconfig(),'@INC: '.\"@INC\\n\"",0); | |
383 | } | |
384 | else { | |
385 | Sv = newSVpv("config_vars(qw(",0); | |
386 | sv_catpv(Sv, ++s); | |
387 | sv_catpv(Sv, "))"); | |
388 | s += strlen(s); | |
389 | } | |
390 | av_push(preambleav, Sv); | |
c07a80fd | 391 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
1a30305b | 392 | goto reswitch; |
33b78306 LW |
393 | case 'x': |
394 | doextract = TRUE; | |
13281fa4 | 395 | s++; |
33b78306 | 396 | if (*s) |
a0d0e21e | 397 | cddir = savepv(s); |
33b78306 | 398 | break; |
8d063cd8 LW |
399 | case '-': |
400 | argc--,argv++; | |
401 | goto switch_end; | |
402 | case 0: | |
403 | break; | |
404 | default: | |
463ee0b2 | 405 | croak("Unrecognized switch: -%s",s); |
8d063cd8 LW |
406 | } |
407 | } | |
408 | switch_end: | |
1a30305b | 409 | if (!scriptname) |
410 | scriptname = argv[0]; | |
8d063cd8 | 411 | if (e_fp) { |
a5f75d66 | 412 | if (Fflush(e_fp) || ferror(e_fp) || fclose(e_fp)) |
2304df62 | 413 | croak("Can't write to temp file for -e: %s", Strerror(errno)); |
ab821d7f | 414 | e_fp = Nullfp; |
8d063cd8 | 415 | argc++,argv--; |
45d8adaa | 416 | scriptname = e_tmpname; |
8d063cd8 | 417 | } |
79072805 LW |
418 | else if (scriptname == Nullch) { |
419 | #ifdef MSDOS | |
420 | if ( isatty(fileno(stdin)) ) | |
421 | moreswitches("v"); | |
fe14fcc3 | 422 | #endif |
79072805 LW |
423 | scriptname = "-"; |
424 | } | |
fe14fcc3 | 425 | |
79072805 | 426 | init_perllib(); |
8d063cd8 | 427 | |
79072805 | 428 | open_script(scriptname,dosearch,sv); |
8d063cd8 | 429 | |
79072805 | 430 | validate_suid(validarg); |
378cc40b | 431 | |
79072805 LW |
432 | if (doextract) |
433 | find_beginning(); | |
434 | ||
748a9306 LW |
435 | compcv = (CV*)NEWSV(1104,0); |
436 | sv_upgrade((SV *)compcv, SVt_PVCV); | |
437 | ||
79072805 LW |
438 | pad = newAV(); |
439 | comppad = pad; | |
440 | av_push(comppad, Nullsv); | |
441 | curpad = AvARRAY(comppad); | |
93a17b20 | 442 | padname = newAV(); |
8990e307 LW |
443 | comppad_name = padname; |
444 | comppad_name_fill = 0; | |
445 | min_intro_pending = 0; | |
79072805 LW |
446 | padix = 0; |
447 | ||
748a9306 LW |
448 | comppadlist = newAV(); |
449 | AvREAL_off(comppadlist); | |
8e07c86e AD |
450 | av_store(comppadlist, 0, (SV*)comppad_name); |
451 | av_store(comppadlist, 1, (SV*)comppad); | |
748a9306 LW |
452 | CvPADLIST(compcv) = comppadlist; |
453 | ||
a0d0e21e LW |
454 | if (xsinit) |
455 | (*xsinit)(); /* in case linked C routines want magical variables */ | |
748a9306 LW |
456 | #ifdef VMS |
457 | init_os_extras(); | |
458 | #endif | |
93a17b20 | 459 | |
93a17b20 | 460 | init_predump_symbols(); |
8990e307 LW |
461 | if (!do_undump) |
462 | init_postdump_symbols(argc,argv,env); | |
93a17b20 | 463 | |
79072805 LW |
464 | init_lexer(); |
465 | ||
466 | /* now parse the script */ | |
467 | ||
468 | error_count = 0; | |
469 | if (yyparse() || error_count) { | |
470 | if (minus_c) | |
463ee0b2 | 471 | croak("%s had compilation errors.\n", origfilename); |
79072805 | 472 | else { |
463ee0b2 | 473 | croak("Execution of %s aborted due to compilation errors.\n", |
79072805 | 474 | origfilename); |
378cc40b | 475 | } |
79072805 LW |
476 | } |
477 | curcop->cop_line = 0; | |
478 | curstash = defstash; | |
479 | preprocess = FALSE; | |
ab821d7f | 480 | if (e_tmpname) { |
79072805 | 481 | (void)UNLINK(e_tmpname); |
ab821d7f | 482 | Safefree(e_tmpname); |
483 | e_tmpname = Nullch; | |
378cc40b | 484 | } |
a687059c | 485 | |
93a17b20 | 486 | /* now that script is parsed, we can modify record separator */ |
c07a80fd | 487 | SvREFCNT_dec(rs); |
488 | rs = SvREFCNT_inc(nrs); | |
489 | sv_setsv(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), rs); | |
45d8adaa | 490 | |
79072805 LW |
491 | if (do_undump) |
492 | my_unexec(); | |
493 | ||
8990e307 LW |
494 | if (dowarn) |
495 | gv_check(defstash); | |
496 | ||
a0d0e21e LW |
497 | LEAVE; |
498 | FREETMPS; | |
c07a80fd | 499 | |
500 | #ifdef DEBUGGING_MSTATS | |
501 | if ((s=getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) | |
502 | dump_mstats("after compilation:"); | |
503 | #endif | |
504 | ||
a0d0e21e LW |
505 | ENTER; |
506 | restartop = 0; | |
79072805 LW |
507 | return 0; |
508 | } | |
509 | ||
510 | int | |
511 | perl_run(sv_interp) | |
93a17b20 | 512 | PerlInterpreter *sv_interp; |
79072805 LW |
513 | { |
514 | if (!(curinterp = sv_interp)) | |
515 | return 255; | |
a5f75d66 | 516 | switch (Sigsetjmp(top_env,1)) { |
79072805 LW |
517 | case 1: |
518 | cxstack_ix = -1; /* start context stack again */ | |
519 | break; | |
520 | case 2: | |
521 | curstash = defstash; | |
93a17b20 LW |
522 | if (endav) |
523 | calllist(endav); | |
a0d0e21e | 524 | FREETMPS; |
c07a80fd | 525 | #ifdef DEBUGGING_MSTATS |
526 | if (getenv("PERL_DEBUG_MSTATS")) | |
527 | dump_mstats("after execution: "); | |
528 | #endif | |
93a17b20 | 529 | return(statusvalue); /* my_exit() was called */ |
79072805 LW |
530 | case 3: |
531 | if (!restartop) { | |
532 | fprintf(stderr, "panic: restartop\n"); | |
a0d0e21e | 533 | FREETMPS; |
8990e307 | 534 | return 1; |
83025b21 | 535 | } |
79072805 LW |
536 | if (stack != mainstack) { |
537 | dSP; | |
538 | SWITCHSTACK(stack, mainstack); | |
539 | } | |
540 | break; | |
8d063cd8 | 541 | } |
79072805 LW |
542 | |
543 | if (!restartop) { | |
544 | DEBUG_x(dump_all()); | |
545 | DEBUG(fprintf(stderr,"\nEXECUTING...\n\n")); | |
546 | ||
547 | if (minus_c) { | |
548 | fprintf(stderr,"%s syntax OK\n", origfilename); | |
549 | my_exit(0); | |
550 | } | |
a0d0e21e LW |
551 | if (perldb && DBsingle) |
552 | sv_setiv(DBsingle, 1); | |
45d8adaa | 553 | } |
79072805 LW |
554 | |
555 | /* do it */ | |
556 | ||
557 | if (restartop) { | |
558 | op = restartop; | |
559 | restartop = 0; | |
ab821d7f | 560 | runops(); |
79072805 LW |
561 | } |
562 | else if (main_start) { | |
563 | op = main_start; | |
ab821d7f | 564 | runops(); |
79072805 | 565 | } |
79072805 LW |
566 | |
567 | my_exit(0); | |
a0d0e21e | 568 | return 0; |
79072805 LW |
569 | } |
570 | ||
571 | void | |
572 | my_exit(status) | |
748a9306 | 573 | U32 status; |
79072805 | 574 | { |
a0d0e21e LW |
575 | register CONTEXT *cx; |
576 | I32 gimme; | |
577 | SV **newsp; | |
578 | ||
748a9306 | 579 | statusvalue = FIXSTATUS(status); |
a0d0e21e LW |
580 | if (cxstack_ix >= 0) { |
581 | if (cxstack_ix > 0) | |
582 | dounwind(0); | |
583 | POPBLOCK(cx,curpm); | |
584 | LEAVE; | |
585 | } | |
a5f75d66 | 586 | Siglongjmp(top_env, 2); |
79072805 LW |
587 | } |
588 | ||
a0d0e21e LW |
589 | SV* |
590 | perl_get_sv(name, create) | |
591 | char* name; | |
592 | I32 create; | |
593 | { | |
594 | GV* gv = gv_fetchpv(name, create, SVt_PV); | |
595 | if (gv) | |
596 | return GvSV(gv); | |
597 | return Nullsv; | |
598 | } | |
599 | ||
600 | AV* | |
601 | perl_get_av(name, create) | |
602 | char* name; | |
603 | I32 create; | |
604 | { | |
605 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); | |
606 | if (create) | |
607 | return GvAVn(gv); | |
608 | if (gv) | |
609 | return GvAV(gv); | |
610 | return Nullav; | |
611 | } | |
612 | ||
613 | HV* | |
614 | perl_get_hv(name, create) | |
615 | char* name; | |
616 | I32 create; | |
617 | { | |
618 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); | |
619 | if (create) | |
620 | return GvHVn(gv); | |
621 | if (gv) | |
622 | return GvHV(gv); | |
623 | return Nullhv; | |
624 | } | |
625 | ||
626 | CV* | |
627 | perl_get_cv(name, create) | |
628 | char* name; | |
629 | I32 create; | |
630 | { | |
631 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); | |
632 | if (create && !GvCV(gv)) | |
633 | return newSUB(start_subparse(), | |
634 | newSVOP(OP_CONST, 0, newSVpv(name,0)), | |
4633a7c4 | 635 | Nullop, |
a0d0e21e LW |
636 | Nullop); |
637 | if (gv) | |
638 | return GvCV(gv); | |
639 | return Nullcv; | |
640 | } | |
641 | ||
79072805 LW |
642 | /* Be sure to refetch the stack pointer after calling these routines. */ |
643 | ||
a0d0e21e LW |
644 | I32 |
645 | perl_call_argv(subname, flags, argv) | |
8990e307 | 646 | char *subname; |
a0d0e21e LW |
647 | I32 flags; /* See G_* flags in cop.h */ |
648 | register char **argv; /* null terminated arg list */ | |
8990e307 | 649 | { |
a0d0e21e | 650 | dSP; |
8990e307 | 651 | |
a0d0e21e LW |
652 | PUSHMARK(sp); |
653 | if (argv) { | |
8990e307 | 654 | while (*argv) { |
a0d0e21e | 655 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 LW |
656 | argv++; |
657 | } | |
a0d0e21e | 658 | PUTBACK; |
8990e307 | 659 | } |
a0d0e21e | 660 | return perl_call_pv(subname, flags); |
8990e307 LW |
661 | } |
662 | ||
a0d0e21e LW |
663 | I32 |
664 | perl_call_pv(subname, flags) | |
665 | char *subname; /* name of the subroutine */ | |
666 | I32 flags; /* See G_* flags in cop.h */ | |
667 | { | |
668 | return perl_call_sv((SV*)perl_get_cv(subname, TRUE), flags); | |
669 | } | |
670 | ||
671 | I32 | |
672 | perl_call_method(methname, flags) | |
673 | char *methname; /* name of the subroutine */ | |
674 | I32 flags; /* See G_* flags in cop.h */ | |
675 | { | |
676 | dSP; | |
677 | OP myop; | |
678 | if (!op) | |
679 | op = &myop; | |
680 | XPUSHs(sv_2mortal(newSVpv(methname,0))); | |
681 | PUTBACK; | |
682 | pp_method(); | |
683 | return perl_call_sv(*stack_sp--, flags); | |
684 | } | |
685 | ||
686 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
687 | I32 | |
688 | perl_call_sv(sv, flags) | |
689 | SV* sv; | |
690 | I32 flags; /* See G_* flags in cop.h */ | |
691 | { | |
692 | LOGOP myop; /* fake syntax tree node */ | |
693 | SV** sp = stack_sp; | |
694 | I32 oldmark = TOPMARK; | |
695 | I32 retval; | |
a5f75d66 | 696 | Sigjmp_buf oldtop; |
a0d0e21e LW |
697 | I32 oldscope; |
698 | ||
699 | if (flags & G_DISCARD) { | |
700 | ENTER; | |
701 | SAVETMPS; | |
702 | } | |
703 | ||
704 | SAVESPTR(op); | |
705 | op = (OP*)&myop; | |
706 | Zero(op, 1, LOGOP); | |
707 | EXTEND(stack_sp, 1); | |
708 | *++stack_sp = sv; | |
709 | oldscope = scopestack_ix; | |
710 | ||
711 | if (!(flags & G_NOARGS)) | |
712 | myop.op_flags = OPf_STACKED; | |
713 | myop.op_next = Nullop; | |
714 | myop.op_flags |= OPf_KNOW; | |
715 | if (flags & G_ARRAY) | |
716 | myop.op_flags |= OPf_LIST; | |
717 | ||
718 | if (flags & G_EVAL) { | |
a5f75d66 | 719 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
a0d0e21e LW |
720 | |
721 | cLOGOP->op_other = op; | |
722 | markstack_ptr--; | |
4633a7c4 LW |
723 | /* we're trying to emulate pp_entertry() here */ |
724 | { | |
725 | register CONTEXT *cx; | |
726 | I32 gimme = GIMME; | |
727 | ||
728 | ENTER; | |
729 | SAVETMPS; | |
730 | ||
731 | push_return(op->op_next); | |
732 | PUSHBLOCK(cx, CXt_EVAL, stack_sp); | |
733 | PUSHEVAL(cx, 0, 0); | |
734 | eval_root = op; /* Only needed so that goto works right. */ | |
735 | ||
736 | in_eval = 1; | |
737 | if (flags & G_KEEPERR) | |
738 | in_eval |= 4; | |
739 | else | |
740 | sv_setpv(GvSV(errgv),""); | |
741 | } | |
a0d0e21e LW |
742 | markstack_ptr++; |
743 | ||
744 | restart: | |
a5f75d66 | 745 | switch (Sigsetjmp(top_env,1)) { |
a0d0e21e LW |
746 | case 0: |
747 | break; | |
748 | case 1: | |
748a9306 | 749 | #ifdef VMS |
a0d0e21e | 750 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 LW |
751 | #else |
752 | statusvalue = 1; | |
753 | #endif | |
a0d0e21e LW |
754 | /* FALL THROUGH */ |
755 | case 2: | |
756 | /* my_exit() was called */ | |
757 | curstash = defstash; | |
758 | FREETMPS; | |
a5f75d66 | 759 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
760 | if (statusvalue) |
761 | croak("Callback called exit"); | |
762 | my_exit(statusvalue); | |
763 | /* NOTREACHED */ | |
764 | case 3: | |
765 | if (restartop) { | |
766 | op = restartop; | |
767 | restartop = 0; | |
768 | goto restart; | |
769 | } | |
770 | stack_sp = stack_base + oldmark; | |
771 | if (flags & G_ARRAY) | |
772 | retval = 0; | |
773 | else { | |
774 | retval = 1; | |
775 | *++stack_sp = &sv_undef; | |
776 | } | |
777 | goto cleanup; | |
778 | } | |
779 | } | |
780 | ||
781 | if (op == (OP*)&myop) | |
782 | op = pp_entersub(); | |
783 | if (op) | |
ab821d7f | 784 | runops(); |
a0d0e21e | 785 | retval = stack_sp - (stack_base + oldmark); |
4633a7c4 LW |
786 | if ((flags & G_EVAL) && !(flags & G_KEEPERR)) |
787 | sv_setpv(GvSV(errgv),""); | |
a0d0e21e LW |
788 | |
789 | cleanup: | |
790 | if (flags & G_EVAL) { | |
791 | if (scopestack_ix > oldscope) { | |
a0a2876f LW |
792 | SV **newsp; |
793 | PMOP *newpm; | |
794 | I32 gimme; | |
795 | register CONTEXT *cx; | |
796 | I32 optype; | |
797 | ||
798 | POPBLOCK(cx,newpm); | |
799 | POPEVAL(cx); | |
800 | pop_return(); | |
801 | curpm = newpm; | |
802 | LEAVE; | |
a0d0e21e | 803 | } |
a5f75d66 | 804 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
805 | } |
806 | if (flags & G_DISCARD) { | |
807 | stack_sp = stack_base + oldmark; | |
808 | retval = 0; | |
809 | FREETMPS; | |
810 | LEAVE; | |
811 | } | |
812 | return retval; | |
813 | } | |
814 | ||
4633a7c4 | 815 | /* Eval a string. */ |
8990e307 | 816 | |
a0d0e21e | 817 | I32 |
4633a7c4 | 818 | perl_eval_sv(sv, flags) |
8990e307 | 819 | SV* sv; |
4633a7c4 | 820 | I32 flags; /* See G_* flags in cop.h */ |
a0d0e21e LW |
821 | { |
822 | UNOP myop; /* fake syntax tree node */ | |
4633a7c4 LW |
823 | SV** sp = stack_sp; |
824 | I32 oldmark = sp - stack_base; | |
825 | I32 retval; | |
a5f75d66 | 826 | Sigjmp_buf oldtop; |
4633a7c4 | 827 | I32 oldscope; |
79072805 | 828 | |
4633a7c4 LW |
829 | if (flags & G_DISCARD) { |
830 | ENTER; | |
831 | SAVETMPS; | |
832 | } | |
833 | ||
79072805 | 834 | SAVESPTR(op); |
79072805 | 835 | op = (OP*)&myop; |
a0d0e21e | 836 | Zero(op, 1, UNOP); |
4633a7c4 LW |
837 | EXTEND(stack_sp, 1); |
838 | *++stack_sp = sv; | |
839 | oldscope = scopestack_ix; | |
79072805 | 840 | |
4633a7c4 LW |
841 | if (!(flags & G_NOARGS)) |
842 | myop.op_flags = OPf_STACKED; | |
79072805 | 843 | myop.op_next = Nullop; |
4633a7c4 LW |
844 | myop.op_flags |= OPf_KNOW; |
845 | if (flags & G_ARRAY) | |
846 | myop.op_flags |= OPf_LIST; | |
79072805 | 847 | |
a5f75d66 | 848 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
4633a7c4 LW |
849 | |
850 | restart: | |
a5f75d66 | 851 | switch (Sigsetjmp(top_env,1)) { |
4633a7c4 LW |
852 | case 0: |
853 | break; | |
854 | case 1: | |
855 | #ifdef VMS | |
856 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ | |
857 | #else | |
858 | statusvalue = 1; | |
859 | #endif | |
860 | /* FALL THROUGH */ | |
861 | case 2: | |
862 | /* my_exit() was called */ | |
863 | curstash = defstash; | |
864 | FREETMPS; | |
a5f75d66 | 865 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
4633a7c4 LW |
866 | if (statusvalue) |
867 | croak("Callback called exit"); | |
868 | my_exit(statusvalue); | |
869 | /* NOTREACHED */ | |
870 | case 3: | |
871 | if (restartop) { | |
872 | op = restartop; | |
873 | restartop = 0; | |
874 | goto restart; | |
875 | } | |
876 | stack_sp = stack_base + oldmark; | |
877 | if (flags & G_ARRAY) | |
878 | retval = 0; | |
879 | else { | |
880 | retval = 1; | |
881 | *++stack_sp = &sv_undef; | |
882 | } | |
883 | goto cleanup; | |
884 | } | |
885 | ||
886 | if (op == (OP*)&myop) | |
887 | op = pp_entereval(); | |
888 | if (op) | |
ab821d7f | 889 | runops(); |
4633a7c4 LW |
890 | retval = stack_sp - (stack_base + oldmark); |
891 | if ((flags & G_EVAL) && !(flags & G_KEEPERR)) | |
892 | sv_setpv(GvSV(errgv),""); | |
893 | ||
894 | cleanup: | |
a5f75d66 | 895 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
4633a7c4 LW |
896 | if (flags & G_DISCARD) { |
897 | stack_sp = stack_base + oldmark; | |
898 | retval = 0; | |
899 | FREETMPS; | |
900 | LEAVE; | |
901 | } | |
902 | return retval; | |
903 | } | |
904 | ||
905 | /* Require a module. */ | |
906 | ||
907 | void | |
908 | perl_require_pv(pv) | |
909 | char* pv; | |
910 | { | |
911 | SV* sv = sv_newmortal(); | |
912 | sv_setpv(sv, "require '"); | |
913 | sv_catpv(sv, pv); | |
914 | sv_catpv(sv, "'"); | |
915 | perl_eval_sv(sv, G_DISCARD); | |
79072805 LW |
916 | } |
917 | ||
79072805 | 918 | void |
79072805 LW |
919 | magicname(sym,name,namlen) |
920 | char *sym; | |
921 | char *name; | |
922 | I32 namlen; | |
923 | { | |
924 | register GV *gv; | |
925 | ||
85e6fe83 | 926 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 LW |
927 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
928 | } | |
929 | ||
748a9306 LW |
930 | #if defined(DOSISH) |
931 | # define PERLLIB_SEP ';' | |
79072805 | 932 | #else |
232e078e AD |
933 | # if defined(VMS) |
934 | # define PERLLIB_SEP '|' | |
935 | # else | |
748a9306 | 936 | # define PERLLIB_SEP ':' |
232e078e | 937 | # endif |
79072805 LW |
938 | #endif |
939 | ||
940 | static void | |
941 | incpush(p) | |
942 | char *p; | |
943 | { | |
944 | char *s; | |
945 | ||
946 | if (!p) | |
947 | return; | |
948 | ||
949 | /* Break at all separators */ | |
950 | while (*p) { | |
951 | /* First, skip any consecutive separators */ | |
952 | while ( *p == PERLLIB_SEP ) { | |
953 | /* Uncomment the next line for PATH semantics */ | |
a0d0e21e | 954 | /* av_push(GvAVn(incgv), newSVpv(".", 1)); */ |
79072805 LW |
955 | p++; |
956 | } | |
93a17b20 | 957 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { |
a0d0e21e | 958 | av_push(GvAVn(incgv), newSVpv(p, (STRLEN)(s - p))); |
79072805 LW |
959 | p = s + 1; |
960 | } else { | |
a0d0e21e | 961 | av_push(GvAVn(incgv), newSVpv(p, 0)); |
79072805 LW |
962 | break; |
963 | } | |
964 | } | |
965 | } | |
966 | ||
ab821d7f | 967 | static void |
1a30305b | 968 | usage(name) /* XXX move this out into a module ? */ |
4633a7c4 LW |
969 | char *name; |
970 | { | |
ab821d7f | 971 | /* This message really ought to be max 23 lines. |
972 | * Removed -h because the user already knows that opton. Others? */ | |
973 | printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name); | |
4633a7c4 | 974 | printf("\n -0[octal] specify record separator (\\0, if no argument)"); |
ab821d7f | 975 | printf("\n -a autosplit mode with -n or -p (splits $_ into @F)"); |
4633a7c4 | 976 | printf("\n -c check syntax only (runs BEGIN and END blocks)"); |
1a30305b | 977 | printf("\n -d[:debugger] run scripts under debugger"); |
4633a7c4 | 978 | printf("\n -D[number/list] set debugging flags (argument is a bit mask or flags)"); |
ab821d7f | 979 | printf("\n -e 'command' one line of script. Several -e's allowed. Omit [programfile]."); |
980 | printf("\n -F/pattern/ split() pattern for autosplit (-a). The //'s are optional."); | |
4633a7c4 | 981 | printf("\n -i[extension] edit <> files in place (make backup if extension supplied)"); |
ab821d7f | 982 | printf("\n -Idirectory specify @INC/#include directory (may be used more then once)"); |
4633a7c4 | 983 | printf("\n -l[octal] enable line ending processing, specifies line teminator"); |
ab821d7f | 984 | printf("\n -[mM][-]module.. executes `use/no module...' before executing your script."); |
4633a7c4 LW |
985 | printf("\n -n assume 'while (<>) { ... }' loop arround your script"); |
986 | printf("\n -p assume loop like -n but print line also like sed"); | |
987 | printf("\n -P run script through C preprocessor before compilation"); | |
988 | #ifdef OS2 | |
989 | printf("\n -R enable REXX variable pool"); | |
990 | #endif | |
991 | printf("\n -s enable some switch parsing for switches after script name"); | |
992 | printf("\n -S look for the script using PATH environment variable"); | |
993 | printf("\n -T turn on tainting checks"); | |
994 | printf("\n -u dump core after parsing script"); | |
995 | printf("\n -U allow unsafe operations"); | |
996 | printf("\n -v print version number and patchlevel of perl"); | |
1a30305b | 997 | printf("\n -V[:variable] print perl configuration information"); |
ab821d7f | 998 | printf("\n -w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT."); |
4633a7c4 LW |
999 | printf("\n -x[directory] strip off text before #!perl line and perhaps cd to directory\n"); |
1000 | } | |
1001 | ||
79072805 LW |
1002 | /* This routine handles any switches that can be given during run */ |
1003 | ||
1004 | char * | |
1005 | moreswitches(s) | |
1006 | char *s; | |
1007 | { | |
1008 | I32 numlen; | |
c07a80fd | 1009 | U32 rschar; |
79072805 LW |
1010 | |
1011 | switch (*s) { | |
1012 | case '0': | |
c07a80fd | 1013 | rschar = scan_oct(s, 4, &numlen); |
1014 | SvREFCNT_dec(nrs); | |
1015 | if (rschar & ~((U8)~0)) | |
1016 | nrs = &sv_undef; | |
1017 | else if (!rschar && numlen >= 2) | |
1018 | nrs = newSVpv("", 0); | |
1019 | else { | |
1020 | char ch = rschar; | |
1021 | nrs = newSVpv(&ch, 1); | |
79072805 LW |
1022 | } |
1023 | return s + numlen; | |
2304df62 AD |
1024 | case 'F': |
1025 | minus_F = TRUE; | |
a0d0e21e | 1026 | splitstr = savepv(s + 1); |
2304df62 AD |
1027 | s += strlen(s); |
1028 | return s; | |
79072805 LW |
1029 | case 'a': |
1030 | minus_a = TRUE; | |
1031 | s++; | |
1032 | return s; | |
1033 | case 'c': | |
1034 | minus_c = TRUE; | |
1035 | s++; | |
1036 | return s; | |
1037 | case 'd': | |
463ee0b2 | 1038 | taint_not("-d"); |
4633a7c4 | 1039 | s++; |
c07a80fd | 1040 | if (*s == ':' || *s == '=') { |
4633a7c4 LW |
1041 | sprintf(buf, "use Devel::%s;", ++s); |
1042 | s += strlen(s); | |
1043 | my_setenv("PERL5DB",buf); | |
1044 | } | |
a0d0e21e LW |
1045 | if (!perldb) { |
1046 | perldb = TRUE; | |
1047 | init_debugger(); | |
1048 | } | |
79072805 LW |
1049 | return s; |
1050 | case 'D': | |
1051 | #ifdef DEBUGGING | |
463ee0b2 | 1052 | taint_not("-D"); |
79072805 | 1053 | if (isALPHA(s[1])) { |
8990e307 | 1054 | static char debopts[] = "psltocPmfrxuLHXD"; |
79072805 LW |
1055 | char *d; |
1056 | ||
93a17b20 | 1057 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
79072805 LW |
1058 | debug |= 1 << (d - debopts); |
1059 | } | |
1060 | else { | |
1061 | debug = atoi(s+1); | |
1062 | for (s++; isDIGIT(*s); s++) ; | |
1063 | } | |
8990e307 | 1064 | debug |= 0x80000000; |
79072805 LW |
1065 | #else |
1066 | warn("Recompile perl with -DDEBUGGING to use -D switch\n"); | |
a0d0e21e | 1067 | for (s++; isALNUM(*s); s++) ; |
79072805 LW |
1068 | #endif |
1069 | /*SUPPRESS 530*/ | |
1070 | return s; | |
4633a7c4 LW |
1071 | case 'h': |
1072 | usage(origargv[0]); | |
1073 | exit(0); | |
79072805 LW |
1074 | case 'i': |
1075 | if (inplace) | |
1076 | Safefree(inplace); | |
a0d0e21e | 1077 | inplace = savepv(s+1); |
79072805 LW |
1078 | /*SUPPRESS 530*/ |
1079 | for (s = inplace; *s && !isSPACE(*s); s++) ; | |
1080 | *s = '\0'; | |
1081 | break; | |
1082 | case 'I': | |
463ee0b2 | 1083 | taint_not("-I"); |
79072805 | 1084 | if (*++s) { |
748a9306 LW |
1085 | char *e; |
1086 | for (e = s; *e && !isSPACE(*e); e++) ; | |
1087 | av_push(GvAVn(incgv),newSVpv(s,e-s)); | |
1088 | if (*e) | |
1089 | return e; | |
79072805 LW |
1090 | } |
1091 | else | |
463ee0b2 | 1092 | croak("No space allowed after -I"); |
79072805 LW |
1093 | break; |
1094 | case 'l': | |
1095 | minus_l = TRUE; | |
1096 | s++; | |
a0d0e21e LW |
1097 | if (ors) |
1098 | Safefree(ors); | |
79072805 | 1099 | if (isDIGIT(*s)) { |
a0d0e21e | 1100 | ors = savepv("\n"); |
79072805 LW |
1101 | orslen = 1; |
1102 | *ors = scan_oct(s, 3 + (*s == '0'), &numlen); | |
1103 | s += numlen; | |
1104 | } | |
1105 | else { | |
c07a80fd | 1106 | if (RsPARA(nrs)) { |
1107 | ors = savepvn("\n\n", 2); | |
1108 | orslen = 2; | |
1109 | } | |
1110 | else | |
1111 | ors = SvPV(nrs, orslen); | |
79072805 LW |
1112 | } |
1113 | return s; | |
1a30305b | 1114 | case 'M': |
1115 | taint_not("-M"); /* XXX ? */ | |
1116 | /* FALL THROUGH */ | |
1117 | case 'm': | |
1118 | taint_not("-m"); /* XXX ? */ | |
1119 | if (*++s) { | |
a5f75d66 AD |
1120 | char *start; |
1121 | char *use = "use "; | |
1122 | /* -M-foo == 'no foo' */ | |
1123 | if (*s == '-') { use = "no "; ++s; } | |
1124 | Sv = newSVpv(use,0); | |
1125 | start = s; | |
1a30305b | 1126 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd | 1127 | while(isALNUM(*s) || *s==':') ++s; |
1128 | if (*s != '=') { | |
1129 | sv_catpv(Sv, start); | |
1130 | if (*(start-1) == 'm') { | |
1131 | if (*s != '\0') | |
1132 | croak("Can't use '%c' after -mname", *s); | |
1133 | sv_catpv( Sv, " ()"); | |
1134 | } | |
1135 | } else { | |
1136 | sv_catpvn(Sv, start, s-start); | |
a5f75d66 | 1137 | sv_catpv(Sv, " split(/,/,q{"); |
c07a80fd | 1138 | sv_catpv(Sv, ++s); |
a5f75d66 | 1139 | sv_catpv(Sv, "})"); |
c07a80fd | 1140 | } |
1a30305b | 1141 | s += strlen(s); |
c07a80fd | 1142 | if (preambleav == NULL) |
1143 | preambleav = newAV(); | |
1144 | av_push(preambleav, Sv); | |
1a30305b | 1145 | } |
1146 | else | |
1147 | croak("No space allowed after -%c", *(s-1)); | |
1148 | return s; | |
79072805 LW |
1149 | case 'n': |
1150 | minus_n = TRUE; | |
1151 | s++; | |
1152 | return s; | |
1153 | case 'p': | |
1154 | minus_p = TRUE; | |
1155 | s++; | |
1156 | return s; | |
1157 | case 's': | |
463ee0b2 | 1158 | taint_not("-s"); |
79072805 LW |
1159 | doswitches = TRUE; |
1160 | s++; | |
1161 | return s; | |
463ee0b2 LW |
1162 | case 'T': |
1163 | tainting = TRUE; | |
1164 | s++; | |
1165 | return s; | |
79072805 LW |
1166 | case 'u': |
1167 | do_undump = TRUE; | |
1168 | s++; | |
1169 | return s; | |
1170 | case 'U': | |
1171 | unsafe = TRUE; | |
1172 | s++; | |
1173 | return s; | |
1174 | case 'v': | |
a5f75d66 AD |
1175 | #if defined(SUBVERSION) && SUBVERSION > 0 |
1176 | printf("\nThis is perl, version 5.%03d_%02d", PATCHLEVEL, SUBVERSION); | |
1177 | #else | |
1178 | printf("\nThis is perl, version %s",patchlevel); | |
1179 | #endif | |
1a30305b | 1180 | |
1181 | #if defined(DEBUGGING) || defined(EMBED) || defined(MULTIPLICITY) | |
1182 | fputs(" with", stdout); | |
1183 | #ifdef DEBUGGING | |
1184 | fputs(" DEBUGGING", stdout); | |
1185 | #endif | |
1186 | #ifdef EMBED | |
1187 | fputs(" EMBED", stdout); | |
1188 | #endif | |
1189 | #ifdef MULTIPLICITY | |
1190 | fputs(" MULTIPLICITY", stdout); | |
1191 | #endif | |
1192 | #endif | |
1193 | ||
ab821d7f | 1194 | #if defined(LOCAL_PATCH_COUNT) |
1195 | if (LOCAL_PATCH_COUNT > 0) | |
1196 | { int i; | |
1197 | fputs("\n\tLocally applied patches:\n", stdout); | |
1198 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { | |
1199 | if (Ilocalpatches[i]) | |
1200 | fprintf(stdout, "\t %s\n", Ilocalpatches[i]); | |
1201 | } | |
1202 | } | |
1203 | #endif | |
1204 | printf("\n\tbuilt under %s",OSNAME); | |
1205 | #ifdef __DATE__ | |
1206 | # ifdef __TIME__ | |
1207 | printf(" at %s %s",__DATE__,__TIME__); | |
1208 | # else | |
1209 | printf(" on %s",__DATE__); | |
1210 | # endif | |
1211 | #endif | |
1a30305b | 1212 | fputs("\n\nCopyright 1987-1996, Larry Wall\n",stdout); |
79072805 LW |
1213 | #ifdef MSDOS |
1214 | fputs("MS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n", | |
1215 | stdout); | |
4633a7c4 | 1216 | #endif |
79072805 | 1217 | #ifdef OS2 |
1a30305b | 1218 | fputs("OS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" |
1219 | "Version 5 port Copyright (c) 1994-1995, Andreas Kaiser\n", stdout); | |
79072805 | 1220 | #endif |
79072805 | 1221 | #ifdef atarist |
1a30305b | 1222 | fputs("atariST series port, ++jrb bammi@cadence.com\n", stdout); |
79072805 LW |
1223 | #endif |
1224 | fputs("\n\ | |
1225 | Perl may be copied only under the terms of either the Artistic License or the\n\ | |
1a30305b | 1226 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n",stdout); |
79072805 LW |
1227 | #ifdef MSDOS |
1228 | usage(origargv[0]); | |
1229 | #endif | |
1230 | exit(0); | |
1231 | case 'w': | |
1232 | dowarn = TRUE; | |
1233 | s++; | |
1234 | return s; | |
a0d0e21e | 1235 | case '*': |
79072805 LW |
1236 | case ' ': |
1237 | if (s[1] == '-') /* Additional switches on #! line. */ | |
1238 | return s+2; | |
1239 | break; | |
a0d0e21e | 1240 | case '-': |
79072805 LW |
1241 | case 0: |
1242 | case '\n': | |
1243 | case '\t': | |
1244 | break; | |
a0d0e21e LW |
1245 | case 'P': |
1246 | if (preprocess) | |
1247 | return s+1; | |
1248 | /* FALL THROUGH */ | |
79072805 | 1249 | default: |
a0d0e21e | 1250 | croak("Can't emulate -%.1s on #! line",s); |
79072805 LW |
1251 | } |
1252 | return Nullch; | |
1253 | } | |
1254 | ||
1255 | /* compliments of Tom Christiansen */ | |
1256 | ||
1257 | /* unexec() can be found in the Gnu emacs distribution */ | |
1258 | ||
1259 | void | |
1260 | my_unexec() | |
1261 | { | |
1262 | #ifdef UNEXEC | |
1263 | int status; | |
1264 | extern int etext; | |
1265 | ||
1266 | sprintf (buf, "%s.perldump", origfilename); | |
1267 | sprintf (tokenbuf, "%s/perl", BIN); | |
1268 | ||
1269 | status = unexec(buf, tokenbuf, &etext, sbrk(0), 0); | |
1270 | if (status) | |
1271 | fprintf(stderr, "unexec of %s into %s failed!\n", tokenbuf, buf); | |
a0d0e21e | 1272 | exit(status); |
79072805 | 1273 | #else |
a5f75d66 AD |
1274 | # ifdef VMS |
1275 | # include <lib$routines.h> | |
1276 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ | |
1277 | #else | |
79072805 LW |
1278 | ABORT(); /* for use with undump */ |
1279 | #endif | |
a5f75d66 | 1280 | #endif |
79072805 LW |
1281 | } |
1282 | ||
1283 | static void | |
1284 | init_main_stash() | |
1285 | { | |
463ee0b2 LW |
1286 | GV *gv; |
1287 | curstash = defstash = newHV(); | |
79072805 | 1288 | curstname = newSVpv("main",4); |
adbc6bb1 LW |
1289 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
1290 | SvREFCNT_dec(GvHV(gv)); | |
1291 | GvHV(gv) = (HV*)SvREFCNT_inc(defstash); | |
463ee0b2 | 1292 | SvREADONLY_on(gv); |
a0d0e21e | 1293 | HvNAME(defstash) = savepv("main"); |
85e6fe83 | 1294 | incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); |
a5f75d66 | 1295 | GvMULTI_on(incgv); |
a0d0e21e | 1296 | defgv = gv_fetchpv("_",TRUE, SVt_PVAV); |
4633a7c4 | 1297 | errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); |
a5f75d66 | 1298 | GvMULTI_on(errgv); |
8990e307 LW |
1299 | curstash = defstash; |
1300 | compiling.cop_stash = defstash; | |
adbc6bb1 | 1301 | debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); |
4633a7c4 LW |
1302 | /* We must init $/ before switches are processed. */ |
1303 | sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1); | |
79072805 LW |
1304 | } |
1305 | ||
a0d0e21e LW |
1306 | #ifdef CAN_PROTOTYPE |
1307 | static void | |
1308 | open_script(char *scriptname, bool dosearch, SV *sv) | |
1309 | #else | |
79072805 LW |
1310 | static void |
1311 | open_script(scriptname,dosearch,sv) | |
1312 | char *scriptname; | |
1313 | bool dosearch; | |
1314 | SV *sv; | |
a0d0e21e | 1315 | #endif |
79072805 LW |
1316 | { |
1317 | char *xfound = Nullch; | |
1318 | char *xfailed = Nullch; | |
1319 | register char *s; | |
1320 | I32 len; | |
a38d6535 LW |
1321 | int retval; |
1322 | #if defined(DOSISH) && !defined(OS2) && !defined(atarist) | |
1323 | #define SEARCH_EXTS ".bat", ".cmd", NULL | |
1324 | #endif | |
ab821d7f | 1325 | #ifdef VMS |
1326 | # define SEARCH_EXTS ".pl", ".com", NULL | |
1327 | #endif | |
a38d6535 LW |
1328 | /* additional extensions to try in each dir if scriptname not found */ |
1329 | #ifdef SEARCH_EXTS | |
1330 | char *ext[] = { SEARCH_EXTS }; | |
1331 | int extidx = (strchr(scriptname,'.')) ? -1 : 0; /* has ext already */ | |
1332 | #endif | |
79072805 | 1333 | |
c07a80fd | 1334 | #ifdef VMS |
1335 | if (dosearch && !strpbrk(scriptname,":[</") && (my_getenv("DCL$PATH"))) { | |
1336 | int idx = 0; | |
1337 | ||
1338 | while (my_trnlnm("DCL$PATH",tokenbuf,idx++)) { | |
1339 | strcat(tokenbuf,scriptname); | |
1340 | #else /* !VMS */ | |
93a17b20 | 1341 | if (dosearch && !strchr(scriptname, '/') && (s = getenv("PATH"))) { |
79072805 LW |
1342 | |
1343 | bufend = s + strlen(s); | |
1344 | while (*s) { | |
1345 | #ifndef DOSISH | |
1346 | s = cpytill(tokenbuf,s,bufend,':',&len); | |
1347 | #else | |
1348 | #ifdef atarist | |
1349 | for (len = 0; *s && *s != ',' && *s != ';'; tokenbuf[len++] = *s++); | |
1350 | tokenbuf[len] = '\0'; | |
1351 | #else | |
1352 | for (len = 0; *s && *s != ';'; tokenbuf[len++] = *s++); | |
1353 | tokenbuf[len] = '\0'; | |
1354 | #endif | |
1355 | #endif | |
1356 | if (*s) | |
1357 | s++; | |
1358 | #ifndef DOSISH | |
1359 | if (len && tokenbuf[len-1] != '/') | |
1360 | #else | |
1361 | #ifdef atarist | |
1362 | if (len && ((tokenbuf[len-1] != '\\') && (tokenbuf[len-1] != '/'))) | |
1363 | #else | |
1364 | if (len && tokenbuf[len-1] != '\\') | |
1365 | #endif | |
1366 | #endif | |
1367 | (void)strcat(tokenbuf+len,"/"); | |
1368 | (void)strcat(tokenbuf+len,scriptname); | |
c07a80fd | 1369 | #endif /* !VMS */ |
a38d6535 LW |
1370 | |
1371 | #ifdef SEARCH_EXTS | |
1372 | len = strlen(tokenbuf); | |
1373 | if (extidx > 0) /* reset after previous loop */ | |
1374 | extidx = 0; | |
1375 | do { | |
1376 | #endif | |
1377 | DEBUG_p(fprintf(stderr,"Looking for %s\n",tokenbuf)); | |
1378 | retval = Stat(tokenbuf,&statbuf); | |
1379 | #ifdef SEARCH_EXTS | |
1380 | } while ( retval < 0 /* not there */ | |
1381 | && extidx>=0 && ext[extidx] /* try an extension? */ | |
1382 | && strcpy(tokenbuf+len, ext[extidx++]) | |
1383 | ); | |
1384 | #endif | |
1385 | if (retval < 0) | |
79072805 LW |
1386 | continue; |
1387 | if (S_ISREG(statbuf.st_mode) | |
1388 | && cando(S_IRUSR,TRUE,&statbuf) && cando(S_IXUSR,TRUE,&statbuf)) { | |
1389 | xfound = tokenbuf; /* bingo! */ | |
1390 | break; | |
1391 | } | |
1392 | if (!xfailed) | |
a0d0e21e | 1393 | xfailed = savepv(tokenbuf); |
79072805 LW |
1394 | } |
1395 | if (!xfound) | |
463ee0b2 | 1396 | croak("Can't execute %s", xfailed ? xfailed : scriptname ); |
79072805 LW |
1397 | if (xfailed) |
1398 | Safefree(xfailed); | |
1399 | scriptname = xfound; | |
1400 | } | |
1401 | ||
ab821d7f | 1402 | origfilename = savepv(e_tmpname ? "-e" : scriptname); |
79072805 LW |
1403 | curcop->cop_filegv = gv_fetchfile(origfilename); |
1404 | if (strEQ(origfilename,"-")) | |
1405 | scriptname = ""; | |
1406 | if (preprocess) { | |
1407 | char *cpp = CPPSTDIN; | |
1408 | ||
1409 | if (strEQ(cpp,"cppstdin")) | |
1410 | sprintf(tokenbuf, "%s/%s", SCRIPTDIR, cpp); | |
1411 | else | |
1412 | sprintf(tokenbuf, "%s", cpp); | |
1413 | sv_catpv(sv,"-I"); | |
fed7345c | 1414 | sv_catpv(sv,PRIVLIB_EXP); |
79072805 LW |
1415 | #ifdef MSDOS |
1416 | (void)sprintf(buf, "\ | |
1417 | sed %s -e \"/^[^#]/b\" \ | |
1418 | -e \"/^#[ ]*include[ ]/b\" \ | |
1419 | -e \"/^#[ ]*define[ ]/b\" \ | |
1420 | -e \"/^#[ ]*if[ ]/b\" \ | |
1421 | -e \"/^#[ ]*ifdef[ ]/b\" \ | |
1422 | -e \"/^#[ ]*ifndef[ ]/b\" \ | |
1423 | -e \"/^#[ ]*else/b\" \ | |
1424 | -e \"/^#[ ]*elif[ ]/b\" \ | |
1425 | -e \"/^#[ ]*undef[ ]/b\" \ | |
1426 | -e \"/^#[ ]*endif/b\" \ | |
1427 | -e \"s/^#.*//\" \ | |
1428 | %s | %s -C %s %s", | |
1429 | (doextract ? "-e \"1,/^#/d\n\"" : ""), | |
1430 | #else | |
1431 | (void)sprintf(buf, "\ | |
1432 | %s %s -e '/^[^#]/b' \ | |
1433 | -e '/^#[ ]*include[ ]/b' \ | |
1434 | -e '/^#[ ]*define[ ]/b' \ | |
1435 | -e '/^#[ ]*if[ ]/b' \ | |
1436 | -e '/^#[ ]*ifdef[ ]/b' \ | |
1437 | -e '/^#[ ]*ifndef[ ]/b' \ | |
1438 | -e '/^#[ ]*else/b' \ | |
1439 | -e '/^#[ ]*elif[ ]/b' \ | |
1440 | -e '/^#[ ]*undef[ ]/b' \ | |
1441 | -e '/^#[ ]*endif/b' \ | |
1442 | -e 's/^[ ]*#.*//' \ | |
1443 | %s | %s -C %s %s", | |
1444 | #ifdef LOC_SED | |
1445 | LOC_SED, | |
1446 | #else | |
1447 | "sed", | |
1448 | #endif | |
1449 | (doextract ? "-e '1,/^#/d\n'" : ""), | |
1450 | #endif | |
463ee0b2 | 1451 | scriptname, tokenbuf, SvPV(sv, na), CPPMINUS); |
79072805 LW |
1452 | doextract = FALSE; |
1453 | #ifdef IAMSUID /* actually, this is caught earlier */ | |
1454 | if (euid != uid && !euid) { /* if running suidperl */ | |
1455 | #ifdef HAS_SETEUID | |
1456 | (void)seteuid(uid); /* musn't stay setuid root */ | |
1457 | #else | |
1458 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1459 | (void)setreuid((Uid_t)-1, uid); |
1460 | #else | |
1461 | #ifdef HAS_SETRESUID | |
1462 | (void)setresuid((Uid_t)-1, uid, (Uid_t)-1); | |
79072805 LW |
1463 | #else |
1464 | setuid(uid); | |
1465 | #endif | |
1466 | #endif | |
85e6fe83 | 1467 | #endif |
79072805 | 1468 | if (geteuid() != uid) |
463ee0b2 | 1469 | croak("Can't do seteuid!\n"); |
79072805 LW |
1470 | } |
1471 | #endif /* IAMSUID */ | |
1472 | rsfp = my_popen(buf,"r"); | |
1473 | } | |
1474 | else if (!*scriptname) { | |
463ee0b2 | 1475 | taint_not("program input from stdin"); |
79072805 LW |
1476 | rsfp = stdin; |
1477 | } | |
1478 | else | |
1479 | rsfp = fopen(scriptname,"r"); | |
45d8adaa | 1480 | if ((FILE*)rsfp == Nullfp) { |
13281fa4 | 1481 | #ifdef DOSUID |
a687059c | 1482 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
a0d0e21e | 1483 | if (euid && Stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 && |
13281fa4 | 1484 | statbuf.st_mode & (S_ISUID|S_ISGID)) { |
27e2fb84 | 1485 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c | 1486 | execv(buf, origargv); /* try again */ |
463ee0b2 | 1487 | croak("Can't do setuid\n"); |
13281fa4 LW |
1488 | } |
1489 | #endif | |
1490 | #endif | |
463ee0b2 | 1491 | croak("Can't open perl script \"%s\": %s\n", |
2304df62 | 1492 | SvPVX(GvSV(curcop->cop_filegv)), Strerror(errno)); |
13281fa4 | 1493 | } |
79072805 | 1494 | } |
8d063cd8 | 1495 | |
79072805 LW |
1496 | static void |
1497 | validate_suid(validarg) | |
1498 | char *validarg; | |
1499 | { | |
13281fa4 LW |
1500 | /* do we need to emulate setuid on scripts? */ |
1501 | ||
1502 | /* This code is for those BSD systems that have setuid #! scripts disabled | |
1503 | * in the kernel because of a security problem. Merely defining DOSUID | |
1504 | * in perl will not fix that problem, but if you have disabled setuid | |
1505 | * scripts in the kernel, this will attempt to emulate setuid and setgid | |
1506 | * on scripts that have those now-otherwise-useless bits set. The setuid | |
27e2fb84 LW |
1507 | * root version must be called suidperl or sperlN.NNN. If regular perl |
1508 | * discovers that it has opened a setuid script, it calls suidperl with | |
1509 | * the same argv that it had. If suidperl finds that the script it has | |
1510 | * just opened is NOT setuid root, it sets the effective uid back to the | |
1511 | * uid. We don't just make perl setuid root because that loses the | |
1512 | * effective uid we had before invoking perl, if it was different from the | |
1513 | * uid. | |
13281fa4 LW |
1514 | * |
1515 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must | |
1516 | * be defined in suidperl only. suidperl must be setuid root. The | |
1517 | * Configure script will set this up for you if you want it. | |
1518 | */ | |
a687059c | 1519 | |
13281fa4 | 1520 | #ifdef DOSUID |
a0d0e21e LW |
1521 | char *s; |
1522 | ||
1523 | if (Fstat(fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */ | |
463ee0b2 | 1524 | croak("Can't stat script \"%s\"",origfilename); |
13281fa4 | 1525 | if (statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 | 1526 | I32 len; |
13281fa4 | 1527 | |
a687059c | 1528 | #ifdef IAMSUID |
fe14fcc3 | 1529 | #ifndef HAS_SETREUID |
a687059c LW |
1530 | /* On this access check to make sure the directories are readable, |
1531 | * there is actually a small window that the user could use to make | |
1532 | * filename point to an accessible directory. So there is a faint | |
1533 | * chance that someone could execute a setuid script down in a | |
1534 | * non-accessible directory. I don't know what to do about that. | |
1535 | * But I don't think it's too important. The manual lies when | |
1536 | * it says access() is useful in setuid programs. | |
1537 | */ | |
463ee0b2 LW |
1538 | if (access(SvPVX(GvSV(curcop->cop_filegv)),1)) /*double check*/ |
1539 | croak("Permission denied"); | |
a687059c LW |
1540 | #else |
1541 | /* If we can swap euid and uid, then we can determine access rights | |
1542 | * with a simple stat of the file, and then compare device and | |
1543 | * inode to make sure we did stat() on the same file we opened. | |
1544 | * Then we just have to make sure he or she can execute it. | |
1545 | */ | |
1546 | { | |
1547 | struct stat tmpstatbuf; | |
1548 | ||
85e6fe83 LW |
1549 | if ( |
1550 | #ifdef HAS_SETREUID | |
1551 | setreuid(euid,uid) < 0 | |
a0d0e21e LW |
1552 | #else |
1553 | # if HAS_SETRESUID | |
85e6fe83 | 1554 | setresuid(euid,uid,(Uid_t)-1) < 0 |
a0d0e21e | 1555 | # endif |
85e6fe83 LW |
1556 | #endif |
1557 | || getuid() != euid || geteuid() != uid) | |
463ee0b2 | 1558 | croak("Can't swap uid and euid"); /* really paranoid */ |
a0d0e21e | 1559 | if (Stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0) |
463ee0b2 | 1560 | croak("Permission denied"); /* testing full pathname here */ |
a687059c LW |
1561 | if (tmpstatbuf.st_dev != statbuf.st_dev || |
1562 | tmpstatbuf.st_ino != statbuf.st_ino) { | |
1563 | (void)fclose(rsfp); | |
79072805 | 1564 | if (rsfp = my_popen("/bin/mail root","w")) { /* heh, heh */ |
a687059c LW |
1565 | fprintf(rsfp, |
1566 | "User %d tried to run dev %d ino %d in place of dev %d ino %d!\n\ | |
1567 | (Filename of set-id script was %s, uid %d gid %d.)\n\nSincerely,\nperl\n", | |
1568 | uid,tmpstatbuf.st_dev, tmpstatbuf.st_ino, | |
1569 | statbuf.st_dev, statbuf.st_ino, | |
463ee0b2 | 1570 | SvPVX(GvSV(curcop->cop_filegv)), |
20188a90 | 1571 | statbuf.st_uid, statbuf.st_gid); |
79072805 | 1572 | (void)my_pclose(rsfp); |
a687059c | 1573 | } |
463ee0b2 | 1574 | croak("Permission denied\n"); |
a687059c | 1575 | } |
85e6fe83 LW |
1576 | if ( |
1577 | #ifdef HAS_SETREUID | |
1578 | setreuid(uid,euid) < 0 | |
a0d0e21e LW |
1579 | #else |
1580 | # if defined(HAS_SETRESUID) | |
85e6fe83 | 1581 | setresuid(uid,euid,(Uid_t)-1) < 0 |
a0d0e21e | 1582 | # endif |
85e6fe83 LW |
1583 | #endif |
1584 | || getuid() != uid || geteuid() != euid) | |
463ee0b2 | 1585 | croak("Can't reswap uid and euid"); |
27e2fb84 | 1586 | if (!cando(S_IXUSR,FALSE,&statbuf)) /* can real uid exec? */ |
463ee0b2 | 1587 | croak("Permission denied\n"); |
a687059c | 1588 | } |
fe14fcc3 | 1589 | #endif /* HAS_SETREUID */ |
a687059c LW |
1590 | #endif /* IAMSUID */ |
1591 | ||
27e2fb84 | 1592 | if (!S_ISREG(statbuf.st_mode)) |
463ee0b2 | 1593 | croak("Permission denied"); |
27e2fb84 | 1594 | if (statbuf.st_mode & S_IWOTH) |
463ee0b2 | 1595 | croak("Setuid/gid script is writable by world"); |
13281fa4 | 1596 | doswitches = FALSE; /* -s is insecure in suid */ |
79072805 | 1597 | curcop->cop_line++; |
13281fa4 LW |
1598 | if (fgets(tokenbuf,sizeof tokenbuf, rsfp) == Nullch || |
1599 | strnNE(tokenbuf,"#!",2) ) /* required even on Sys V */ | |
463ee0b2 | 1600 | croak("No #! line"); |
663a0e37 LW |
1601 | s = tokenbuf+2; |
1602 | if (*s == ' ') s++; | |
45d8adaa | 1603 | while (!isSPACE(*s)) s++; |
27e2fb84 | 1604 | if (strnNE(s-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ |
463ee0b2 | 1605 | croak("Not a perl script"); |
a687059c | 1606 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 LW |
1607 | /* |
1608 | * #! arg must be what we saw above. They can invoke it by | |
1609 | * mentioning suidperl explicitly, but they may not add any strange | |
1610 | * arguments beyond what #! says if they do invoke suidperl that way. | |
1611 | */ | |
1612 | len = strlen(validarg); | |
1613 | if (strEQ(validarg," PHOOEY ") || | |
45d8adaa | 1614 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
463ee0b2 | 1615 | croak("Args must match #! line"); |
a687059c LW |
1616 | |
1617 | #ifndef IAMSUID | |
1618 | if (euid != uid && (statbuf.st_mode & S_ISUID) && | |
1619 | euid == statbuf.st_uid) | |
1620 | if (!do_undump) | |
463ee0b2 | 1621 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
1622 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1623 | #endif /* IAMSUID */ | |
13281fa4 LW |
1624 | |
1625 | if (euid) { /* oops, we're not the setuid root perl */ | |
a687059c | 1626 | (void)fclose(rsfp); |
13281fa4 | 1627 | #ifndef IAMSUID |
27e2fb84 | 1628 | (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel); |
a687059c | 1629 | execv(buf, origargv); /* try again */ |
13281fa4 | 1630 | #endif |
463ee0b2 | 1631 | croak("Can't do setuid\n"); |
13281fa4 LW |
1632 | } |
1633 | ||
83025b21 | 1634 | if (statbuf.st_mode & S_ISGID && statbuf.st_gid != egid) { |
fe14fcc3 | 1635 | #ifdef HAS_SETEGID |
a687059c LW |
1636 | (void)setegid(statbuf.st_gid); |
1637 | #else | |
fe14fcc3 | 1638 | #ifdef HAS_SETREGID |
85e6fe83 LW |
1639 | (void)setregid((Gid_t)-1,statbuf.st_gid); |
1640 | #else | |
1641 | #ifdef HAS_SETRESGID | |
1642 | (void)setresgid((Gid_t)-1,statbuf.st_gid,(Gid_t)-1); | |
a687059c LW |
1643 | #else |
1644 | setgid(statbuf.st_gid); | |
1645 | #endif | |
1646 | #endif | |
85e6fe83 | 1647 | #endif |
83025b21 | 1648 | if (getegid() != statbuf.st_gid) |
463ee0b2 | 1649 | croak("Can't do setegid!\n"); |
83025b21 | 1650 | } |
a687059c LW |
1651 | if (statbuf.st_mode & S_ISUID) { |
1652 | if (statbuf.st_uid != euid) | |
fe14fcc3 | 1653 | #ifdef HAS_SETEUID |
a687059c LW |
1654 | (void)seteuid(statbuf.st_uid); /* all that for this */ |
1655 | #else | |
fe14fcc3 | 1656 | #ifdef HAS_SETREUID |
85e6fe83 LW |
1657 | (void)setreuid((Uid_t)-1,statbuf.st_uid); |
1658 | #else | |
1659 | #ifdef HAS_SETRESUID | |
1660 | (void)setresuid((Uid_t)-1,statbuf.st_uid,(Uid_t)-1); | |
a687059c LW |
1661 | #else |
1662 | setuid(statbuf.st_uid); | |
1663 | #endif | |
1664 | #endif | |
85e6fe83 | 1665 | #endif |
83025b21 | 1666 | if (geteuid() != statbuf.st_uid) |
463ee0b2 | 1667 | croak("Can't do seteuid!\n"); |
a687059c | 1668 | } |
83025b21 | 1669 | else if (uid) { /* oops, mustn't run as root */ |
fe14fcc3 | 1670 | #ifdef HAS_SETEUID |
85e6fe83 | 1671 | (void)seteuid((Uid_t)uid); |
a687059c | 1672 | #else |
fe14fcc3 | 1673 | #ifdef HAS_SETREUID |
85e6fe83 | 1674 | (void)setreuid((Uid_t)-1,(Uid_t)uid); |
a687059c | 1675 | #else |
85e6fe83 LW |
1676 | #ifdef HAS_SETRESUID |
1677 | (void)setresuid((Uid_t)-1,(Uid_t)uid,(Uid_t)-1); | |
1678 | #else | |
1679 | setuid((Uid_t)uid); | |
1680 | #endif | |
a687059c LW |
1681 | #endif |
1682 | #endif | |
83025b21 | 1683 | if (geteuid() != uid) |
463ee0b2 | 1684 | croak("Can't do seteuid!\n"); |
83025b21 | 1685 | } |
748a9306 | 1686 | init_ids(); |
27e2fb84 | 1687 | if (!cando(S_IXUSR,TRUE,&statbuf)) |
463ee0b2 | 1688 | croak("Permission denied\n"); /* they can't do this */ |
13281fa4 LW |
1689 | } |
1690 | #ifdef IAMSUID | |
1691 | else if (preprocess) | |
463ee0b2 | 1692 | croak("-P not allowed for setuid/setgid script\n"); |
13281fa4 | 1693 | else |
463ee0b2 | 1694 | croak("Script is not setuid/setgid in suidperl\n"); |
13281fa4 | 1695 | #endif /* IAMSUID */ |
a687059c | 1696 | #else /* !DOSUID */ |
a687059c LW |
1697 | if (euid != uid || egid != gid) { /* (suidperl doesn't exist, in fact) */ |
1698 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW | |
a0d0e21e | 1699 | Fstat(fileno(rsfp),&statbuf); /* may be either wrapped or real suid */ |
a687059c LW |
1700 | if ((euid != uid && euid == statbuf.st_uid && statbuf.st_mode & S_ISUID) |
1701 | || | |
1702 | (egid != gid && egid == statbuf.st_gid && statbuf.st_mode & S_ISGID) | |
1703 | ) | |
1704 | if (!do_undump) | |
463ee0b2 | 1705 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
1706 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
1707 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ | |
1708 | /* not set-id, must be wrapped */ | |
a687059c | 1709 | } |
13281fa4 | 1710 | #endif /* DOSUID */ |
79072805 | 1711 | } |
13281fa4 | 1712 | |
79072805 LW |
1713 | static void |
1714 | find_beginning() | |
1715 | { | |
79072805 | 1716 | register char *s; |
33b78306 LW |
1717 | |
1718 | /* skip forward in input to the real script? */ | |
1719 | ||
463ee0b2 | 1720 | taint_not("-x"); |
33b78306 | 1721 | while (doextract) { |
79072805 | 1722 | if ((s = sv_gets(linestr, rsfp, 0)) == Nullch) |
463ee0b2 | 1723 | croak("No Perl script found in input\n"); |
33b78306 LW |
1724 | if (*s == '#' && s[1] == '!' && instr(s,"perl")) { |
1725 | ungetc('\n',rsfp); /* to keep line count right */ | |
1726 | doextract = FALSE; | |
1727 | if (s = instr(s,"perl -")) { | |
1728 | s += 6; | |
45d8adaa | 1729 | /*SUPPRESS 530*/ |
33b78306 LW |
1730 | while (s = moreswitches(s)) ; |
1731 | } | |
79072805 | 1732 | if (cddir && chdir(cddir) < 0) |
463ee0b2 | 1733 | croak("Can't chdir to %s",cddir); |
83025b21 LW |
1734 | } |
1735 | } | |
1736 | } | |
1737 | ||
79072805 | 1738 | static void |
748a9306 | 1739 | init_ids() |
352d5a3a | 1740 | { |
748a9306 LW |
1741 | uid = (int)getuid(); |
1742 | euid = (int)geteuid(); | |
1743 | gid = (int)getgid(); | |
1744 | egid = (int)getegid(); | |
1745 | #ifdef VMS | |
1746 | uid |= gid << 16; | |
1747 | euid |= egid << 16; | |
1748 | #endif | |
4633a7c4 | 1749 | tainting |= (uid && (euid != uid || egid != gid)); |
748a9306 | 1750 | } |
79072805 | 1751 | |
748a9306 LW |
1752 | static void |
1753 | init_debugger() | |
1754 | { | |
79072805 | 1755 | curstash = debstash; |
748a9306 | 1756 | dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); |
79072805 | 1757 | AvREAL_off(dbargs); |
a0d0e21e LW |
1758 | DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); |
1759 | DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); | |
748a9306 LW |
1760 | DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); |
1761 | DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); | |
c07a80fd | 1762 | sv_setiv(DBsingle, 0); |
748a9306 | 1763 | DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); |
c07a80fd | 1764 | sv_setiv(DBtrace, 0); |
748a9306 | 1765 | DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); |
c07a80fd | 1766 | sv_setiv(DBsignal, 0); |
79072805 | 1767 | curstash = defstash; |
352d5a3a LW |
1768 | } |
1769 | ||
79072805 | 1770 | static void |
8990e307 | 1771 | init_stacks() |
79072805 LW |
1772 | { |
1773 | stack = newAV(); | |
1774 | mainstack = stack; /* remember in case we switch stacks */ | |
1775 | AvREAL_off(stack); /* not a real array */ | |
a0d0e21e | 1776 | av_extend(stack,127); |
79072805 LW |
1777 | |
1778 | stack_base = AvARRAY(stack); | |
1779 | stack_sp = stack_base; | |
8990e307 | 1780 | stack_max = stack_base + 127; |
79072805 | 1781 | |
a0d0e21e | 1782 | New(54,markstack,64,I32); |
79072805 LW |
1783 | markstack_ptr = markstack; |
1784 | markstack_max = markstack + 64; | |
1785 | ||
a0d0e21e | 1786 | New(54,scopestack,32,I32); |
79072805 LW |
1787 | scopestack_ix = 0; |
1788 | scopestack_max = 32; | |
1789 | ||
1790 | New(54,savestack,128,ANY); | |
1791 | savestack_ix = 0; | |
1792 | savestack_max = 128; | |
1793 | ||
1794 | New(54,retstack,16,OP*); | |
1795 | retstack_ix = 0; | |
1796 | retstack_max = 16; | |
8d063cd8 | 1797 | |
a5f75d66 AD |
1798 | cxstack_max = 8192 / sizeof(CONTEXT) - 2; /* Use most of 8K. */ |
1799 | New(50,cxstack,cxstack_max + 1,CONTEXT); | |
8990e307 | 1800 | cxstack_ix = -1; |
8990e307 LW |
1801 | |
1802 | New(50,tmps_stack,128,SV*); | |
1803 | tmps_ix = -1; | |
1804 | tmps_max = 128; | |
1805 | ||
79072805 LW |
1806 | DEBUG( { |
1807 | New(51,debname,128,char); | |
1808 | New(52,debdelim,128,char); | |
1809 | } ) | |
378cc40b | 1810 | } |
33b78306 | 1811 | |
a0d0e21e | 1812 | static FILE *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
79072805 | 1813 | static void |
8990e307 LW |
1814 | init_lexer() |
1815 | { | |
a0d0e21e | 1816 | tmpfp = rsfp; |
8990e307 LW |
1817 | |
1818 | lex_start(linestr); | |
1819 | rsfp = tmpfp; | |
1820 | subname = newSVpv("main",4); | |
1821 | } | |
1822 | ||
1823 | static void | |
79072805 | 1824 | init_predump_symbols() |
45d8adaa | 1825 | { |
93a17b20 | 1826 | GV *tmpgv; |
a0d0e21e | 1827 | GV *othergv; |
79072805 | 1828 | |
85e6fe83 | 1829 | sv_setpvn(GvSV(gv_fetchpv("\"", TRUE, SVt_PV)), " ", 1); |
79072805 | 1830 | |
85e6fe83 | 1831 | stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
a5f75d66 | 1832 | GvMULTI_on(stdingv); |
a0d0e21e | 1833 | IoIFP(GvIOp(stdingv)) = stdin; |
adbc6bb1 | 1834 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 | 1835 | GvMULTI_on(tmpgv); |
a0d0e21e | 1836 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(stdingv)); |
79072805 | 1837 | |
85e6fe83 | 1838 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 | 1839 | GvMULTI_on(tmpgv); |
a0d0e21e | 1840 | IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = stdout; |
4633a7c4 | 1841 | setdefout(tmpgv); |
adbc6bb1 | 1842 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 | 1843 | GvMULTI_on(tmpgv); |
a0d0e21e | 1844 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(defoutgv)); |
79072805 | 1845 | |
a0d0e21e | 1846 | othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
a5f75d66 | 1847 | GvMULTI_on(othergv); |
a0d0e21e | 1848 | IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = stderr; |
adbc6bb1 | 1849 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 | 1850 | GvMULTI_on(tmpgv); |
a0d0e21e | 1851 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv)); |
79072805 LW |
1852 | |
1853 | statname = NEWSV(66,0); /* last filename we did stat on */ | |
ab821d7f | 1854 | |
1855 | osname = savepv(OSNAME); | |
79072805 | 1856 | } |
33b78306 | 1857 | |
79072805 LW |
1858 | static void |
1859 | init_postdump_symbols(argc,argv,env) | |
1860 | register int argc; | |
1861 | register char **argv; | |
1862 | register char **env; | |
33b78306 | 1863 | { |
79072805 LW |
1864 | char *s; |
1865 | SV *sv; | |
1866 | GV* tmpgv; | |
fe14fcc3 | 1867 | |
79072805 LW |
1868 | argc--,argv++; /* skip name of script */ |
1869 | if (doswitches) { | |
1870 | for (; argc > 0 && **argv == '-'; argc--,argv++) { | |
1871 | if (!argv[0][1]) | |
1872 | break; | |
1873 | if (argv[0][1] == '-') { | |
1874 | argc--,argv++; | |
1875 | break; | |
1876 | } | |
93a17b20 | 1877 | if (s = strchr(argv[0], '=')) { |
79072805 | 1878 | *s++ = '\0'; |
85e6fe83 | 1879 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 LW |
1880 | } |
1881 | else | |
85e6fe83 | 1882 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 | 1883 | } |
79072805 LW |
1884 | } |
1885 | toptarget = NEWSV(0,0); | |
1886 | sv_upgrade(toptarget, SVt_PVFM); | |
1887 | sv_setpvn(toptarget, "", 0); | |
748a9306 | 1888 | bodytarget = NEWSV(0,0); |
79072805 LW |
1889 | sv_upgrade(bodytarget, SVt_PVFM); |
1890 | sv_setpvn(bodytarget, "", 0); | |
1891 | formtarget = bodytarget; | |
1892 | ||
79072805 | 1893 | tainted = 1; |
85e6fe83 | 1894 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
79072805 LW |
1895 | sv_setpv(GvSV(tmpgv),origfilename); |
1896 | magicname("0", "0", 1); | |
1897 | } | |
85e6fe83 | 1898 | if (tmpgv = gv_fetchpv("\024",TRUE, SVt_PV)) |
79072805 | 1899 | time(&basetime); |
85e6fe83 | 1900 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
79072805 | 1901 | sv_setpv(GvSV(tmpgv),origargv[0]); |
85e6fe83 | 1902 | if (argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { |
a5f75d66 | 1903 | GvMULTI_on(argvgv); |
79072805 LW |
1904 | (void)gv_AVadd(argvgv); |
1905 | av_clear(GvAVn(argvgv)); | |
1906 | for (; argc > 0; argc--,argv++) { | |
a0d0e21e | 1907 | av_push(GvAVn(argvgv),newSVpv(argv[0],0)); |
79072805 LW |
1908 | } |
1909 | } | |
85e6fe83 | 1910 | if (envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 | 1911 | HV *hv; |
a5f75d66 | 1912 | GvMULTI_on(envgv); |
79072805 | 1913 | hv = GvHVn(envgv); |
463ee0b2 | 1914 | hv_clear(hv); |
a0d0e21e | 1915 | #ifndef VMS /* VMS doesn't have environ array */ |
4633a7c4 LW |
1916 | /* Note that if the supplied env parameter is actually a copy |
1917 | of the global environ then it may now point to free'd memory | |
1918 | if the environment has been modified since. To avoid this | |
1919 | problem we treat env==NULL as meaning 'use the default' | |
1920 | */ | |
1921 | if (!env) | |
1922 | env = environ; | |
8990e307 | 1923 | if (env != environ) { |
79072805 | 1924 | environ[0] = Nullch; |
8990e307 LW |
1925 | hv_magic(hv, envgv, 'E'); |
1926 | } | |
79072805 | 1927 | for (; *env; env++) { |
93a17b20 | 1928 | if (!(s = strchr(*env,'='))) |
79072805 LW |
1929 | continue; |
1930 | *s++ = '\0'; | |
1931 | sv = newSVpv(s--,0); | |
85e6fe83 | 1932 | sv_magic(sv, sv, 'e', *env, s - *env); |
79072805 LW |
1933 | (void)hv_store(hv, *env, s - *env, sv, 0); |
1934 | *s = '='; | |
fe14fcc3 | 1935 | } |
4550b24a | 1936 | #endif |
1937 | #ifdef DYNAMIC_ENV_FETCH | |
1938 | HvNAME(hv) = savepv(ENV_HV_NAME); | |
1939 | #endif | |
f511e57f | 1940 | hv_magic(hv, envgv, 'E'); |
79072805 | 1941 | } |
79072805 | 1942 | tainted = 0; |
85e6fe83 | 1943 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
79072805 LW |
1944 | sv_setiv(GvSV(tmpgv),(I32)getpid()); |
1945 | ||
33b78306 | 1946 | } |
34de22dd | 1947 | |
79072805 LW |
1948 | static void |
1949 | init_perllib() | |
34de22dd | 1950 | { |
85e6fe83 LW |
1951 | char *s; |
1952 | if (!tainting) { | |
1953 | s = getenv("PERL5LIB"); | |
1954 | if (s) | |
1955 | incpush(s); | |
1956 | else | |
1957 | incpush(getenv("PERLLIB")); | |
1958 | } | |
34de22dd | 1959 | |
4633a7c4 LW |
1960 | #ifdef APPLLIB_EXP |
1961 | incpush(APPLLIB_EXP); | |
16d20bd9 | 1962 | #endif |
4633a7c4 | 1963 | |
fed7345c AD |
1964 | #ifdef ARCHLIB_EXP |
1965 | incpush(ARCHLIB_EXP); | |
a0d0e21e | 1966 | #endif |
fed7345c AD |
1967 | #ifndef PRIVLIB_EXP |
1968 | #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" | |
34de22dd | 1969 | #endif |
fed7345c | 1970 | incpush(PRIVLIB_EXP); |
4633a7c4 LW |
1971 | |
1972 | #ifdef SITEARCH_EXP | |
1973 | incpush(SITEARCH_EXP); | |
1974 | #endif | |
1975 | #ifdef SITELIB_EXP | |
1976 | incpush(SITELIB_EXP); | |
1977 | #endif | |
1978 | #ifdef OLDARCHLIB_EXP /* 5.00[01] compatibility */ | |
1979 | incpush(OLDARCHLIB_EXP); | |
1980 | #endif | |
a0d0e21e | 1981 | |
4633a7c4 LW |
1982 | if (!tainting) |
1983 | incpush("."); | |
34de22dd | 1984 | } |
93a17b20 LW |
1985 | |
1986 | void | |
1987 | calllist(list) | |
1988 | AV* list; | |
1989 | { | |
a5f75d66 | 1990 | Sigjmp_buf oldtop; |
a0d0e21e LW |
1991 | STRLEN len; |
1992 | line_t oldline = curcop->cop_line; | |
93a17b20 | 1993 | |
a5f75d66 | 1994 | Copy(top_env, oldtop, 1, Sigjmp_buf); |
93a17b20 | 1995 | |
8990e307 LW |
1996 | while (AvFILL(list) >= 0) { |
1997 | CV *cv = (CV*)av_shift(list); | |
93a17b20 | 1998 | |
8990e307 | 1999 | SAVEFREESV(cv); |
a0d0e21e | 2000 | |
a5f75d66 | 2001 | switch (Sigsetjmp(top_env,1)) { |
748a9306 | 2002 | case 0: { |
4633a7c4 | 2003 | SV* atsv = GvSV(errgv); |
748a9306 LW |
2004 | PUSHMARK(stack_sp); |
2005 | perl_call_sv((SV*)cv, G_EVAL|G_DISCARD); | |
2006 | (void)SvPV(atsv, len); | |
2007 | if (len) { | |
a5f75d66 | 2008 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
748a9306 LW |
2009 | curcop = &compiling; |
2010 | curcop->cop_line = oldline; | |
2011 | if (list == beginav) | |
2012 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); | |
2013 | else | |
2014 | sv_catpv(atsv, "END failed--cleanup aborted"); | |
2015 | croak("%s", SvPVX(atsv)); | |
2016 | } | |
a0d0e21e | 2017 | } |
85e6fe83 LW |
2018 | break; |
2019 | case 1: | |
748a9306 | 2020 | #ifdef VMS |
85e6fe83 | 2021 | statusvalue = 255; /* XXX I don't think we use 1 anymore. */ |
748a9306 LW |
2022 | #else |
2023 | statusvalue = 1; | |
2024 | #endif | |
85e6fe83 LW |
2025 | /* FALL THROUGH */ |
2026 | case 2: | |
2027 | /* my_exit() was called */ | |
2028 | curstash = defstash; | |
2029 | if (endav) | |
2030 | calllist(endav); | |
a0d0e21e | 2031 | FREETMPS; |
a5f75d66 | 2032 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
2033 | curcop = &compiling; |
2034 | curcop->cop_line = oldline; | |
85e6fe83 LW |
2035 | if (statusvalue) { |
2036 | if (list == beginav) | |
a0d0e21e | 2037 | croak("BEGIN failed--compilation aborted"); |
85e6fe83 | 2038 | else |
a0d0e21e | 2039 | croak("END failed--cleanup aborted"); |
85e6fe83 | 2040 | } |
85e6fe83 LW |
2041 | my_exit(statusvalue); |
2042 | /* NOTREACHED */ | |
2043 | return; | |
2044 | case 3: | |
2045 | if (!restartop) { | |
2046 | fprintf(stderr, "panic: restartop\n"); | |
a0d0e21e | 2047 | FREETMPS; |
85e6fe83 LW |
2048 | break; |
2049 | } | |
a5f75d66 | 2050 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
a0d0e21e LW |
2051 | curcop = &compiling; |
2052 | curcop->cop_line = oldline; | |
a5f75d66 | 2053 | Siglongjmp(top_env, 3); |
8990e307 | 2054 | } |
93a17b20 LW |
2055 | } |
2056 | ||
a5f75d66 | 2057 | Copy(oldtop, top_env, 1, Sigjmp_buf); |
93a17b20 LW |
2058 | } |
2059 |