Commit | Line | Data |
a0d0e21e |
1 | /* perl.c |
2 | * |
a411490c |
3 | * Copyright (c) 1987-1998 Larry Wall |
a687059c |
4 | * |
352d5a3a |
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 |
8 | */ |
9 | |
a0d0e21e |
10 | /* |
11 | * "A ship then new they built for him/of mithril and of elven glass" --Bilbo |
12 | */ |
45d8adaa |
13 | |
378cc40b |
14 | #include "EXTERN.h" |
15 | #include "perl.h" |
a687059c |
16 | #include "patchlevel.h" |
378cc40b |
17 | |
df5cef82 |
18 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e |
19 | #ifdef I_UNISTD |
20 | #include <unistd.h> |
21 | #endif |
a0d0e21e |
22 | |
54310121 |
23 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) |
24 | char *getenv _((char *)); /* Usually in <stdlib.h> */ |
25 | #endif |
26 | |
51fa4eea |
27 | #ifdef I_FCNTL |
28 | #include <fcntl.h> |
29 | #endif |
30 | #ifdef I_SYS_FILE |
31 | #include <sys/file.h> |
32 | #endif |
33 | |
71be2cbc |
34 | dEXTCONST char rcsid[] = "perl.c\nPatch level: ###\n"; |
463ee0b2 |
35 | |
a687059c |
36 | #ifdef IAMSUID |
37 | #ifndef DOSUID |
38 | #define DOSUID |
39 | #endif |
40 | #endif |
378cc40b |
41 | |
a687059c |
42 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
43 | #ifdef DOSUID |
44 | #undef DOSUID |
45 | #endif |
46 | #endif |
8d063cd8 |
47 | |
8ebc5c01 |
48 | #define I_REINIT \ |
49 | STMT_START { \ |
50 | chopset = " \n-"; \ |
51 | copline = NOLINE; \ |
52 | curcop = &compiling; \ |
53 | curcopdb = NULL; \ |
54 | cxstack_ix = -1; \ |
55 | cxstack_max = 128; \ |
56 | dbargs = 0; \ |
57 | dlmax = 128; \ |
58 | laststatval = -1; \ |
59 | laststype = OP_STAT; \ |
60 | maxscream = -1; \ |
61 | maxsysfd = MAXSYSFD; \ |
62 | statname = Nullsv; \ |
63 | tmps_floor = -1; \ |
64 | tmps_ix = -1; \ |
65 | op_mask = NULL; \ |
66 | dlmax = 128; \ |
67 | laststatval = -1; \ |
68 | laststype = OP_STAT; \ |
46fc3d4c |
69 | mess_sv = Nullsv; \ |
8ebc5c01 |
70 | } STMT_END |
71 | |
873ef191 |
72 | #ifdef PERL_OBJECT |
73 | static I32 read_e_script _((CPerlObj* pPerl, int idx, SV *buf_sv, int maxlen)); |
74 | #else |
a0d0e21e |
75 | static void find_beginning _((void)); |
bbce6d69 |
76 | static void forbid_setid _((char *)); |
774d564b |
77 | static void incpush _((char *, int)); |
748a9306 |
78 | static void init_ids _((void)); |
a0d0e21e |
79 | static void init_debugger _((void)); |
80 | static void init_lexer _((void)); |
81 | static void init_main_stash _((void)); |
199100c8 |
82 | #ifdef USE_THREADS |
52e1cb5e |
83 | static struct perl_thread * init_main_thread _((void)); |
199100c8 |
84 | #endif /* USE_THREADS */ |
a0d0e21e |
85 | static void init_perllib _((void)); |
86 | static void init_postdump_symbols _((int, char **, char **)); |
87 | static void init_predump_symbols _((void)); |
f86702cc |
88 | static void my_exit_jump _((void)) __attribute__((noreturn)); |
6e72f9df |
89 | static void nuke_stacks _((void)); |
01f988be |
90 | static void open_script _((char *, bool, SV *, int *fd)); |
ab821d7f |
91 | static void usage _((char *)); |
01f988be |
92 | static void validate_suid _((char *, char*, int)); |
afe37c7d |
93 | static I32 read_e_script _((int idx, SV *buf_sv, int maxlen)); |
76e3520e |
94 | #endif |
96436eeb |
95 | |
01f988be |
96 | #ifdef PERL_OBJECT |
97 | CPerlObj* perl_alloc(IPerlMem* ipM, IPerlEnv* ipE, IPerlStdIO* ipStd, |
98 | IPerlLIO* ipLIO, IPerlDir* ipD, IPerlSock* ipS, IPerlProc* ipP) |
99 | { |
100 | CPerlObj* pPerl = new(ipM) CPerlObj(ipM, ipE, ipStd, ipLIO, ipD, ipS, ipP); |
101 | if(pPerl != NULL) |
102 | pPerl->Init(); |
79072805 |
103 | |
01f988be |
104 | return pPerl; |
105 | } |
106 | #else |
93a17b20 |
107 | PerlInterpreter * |
8ac85365 |
108 | perl_alloc(void) |
79072805 |
109 | { |
93a17b20 |
110 | PerlInterpreter *sv_interp; |
79072805 |
111 | |
8990e307 |
112 | curinterp = 0; |
93a17b20 |
113 | New(53, sv_interp, 1, PerlInterpreter); |
79072805 |
114 | return sv_interp; |
115 | } |
01f988be |
116 | #endif /* PERL_OBJECT */ |
79072805 |
117 | |
118 | void |
76e3520e |
119 | #ifdef PERL_OBJECT |
120 | CPerlObj::perl_construct(void) |
121 | #else |
8ac85365 |
122 | perl_construct(register PerlInterpreter *sv_interp) |
76e3520e |
123 | #endif |
79072805 |
124 | { |
a863c7d1 |
125 | #ifdef USE_THREADS |
126 | int i; |
127 | #ifndef FAKE_THREADS |
52e1cb5e |
128 | struct perl_thread *thr; |
a863c7d1 |
129 | #endif /* FAKE_THREADS */ |
130 | #endif /* USE_THREADS */ |
11343788 |
131 | |
76e3520e |
132 | #ifndef PERL_OBJECT |
79072805 |
133 | if (!(curinterp = sv_interp)) |
134 | return; |
76e3520e |
135 | #endif |
79072805 |
136 | |
8990e307 |
137 | #ifdef MULTIPLICITY |
93a17b20 |
138 | Zero(sv_interp, 1, PerlInterpreter); |
8990e307 |
139 | #endif |
79072805 |
140 | |
33f46ff6 |
141 | /* Init the real globals (and main thread)? */ |
c116a00c |
142 | if (!linestr) { |
11343788 |
143 | #ifdef USE_THREADS |
8023c3ce |
144 | |
33f46ff6 |
145 | INIT_THREADS; |
d55594ae |
146 | #ifdef ALLOC_THREAD_KEY |
147 | ALLOC_THREAD_KEY; |
148 | #else |
a863c7d1 |
149 | if (pthread_key_create(&thr_key, 0)) |
150 | croak("panic: pthread_key_create"); |
d55594ae |
151 | #endif |
c116a00c |
152 | MUTEX_INIT(&sv_mutex); |
a863c7d1 |
153 | /* |
154 | * Safe to use basic SV functions from now on (though |
155 | * not things like mortals or tainting yet). |
156 | */ |
c116a00c |
157 | MUTEX_INIT(&eval_mutex); |
158 | COND_INIT(&eval_cond); |
33f46ff6 |
159 | MUTEX_INIT(&threads_mutex); |
c116a00c |
160 | COND_INIT(&nthreads_cond); |
dce16143 |
161 | #ifdef EMULATE_ATOMIC_REFCOUNTS |
162 | MUTEX_INIT(&svref_mutex); |
163 | #endif /* EMULATE_ATOMIC_REFCOUNTS */ |
a863c7d1 |
164 | |
199100c8 |
165 | thr = init_main_thread(); |
11343788 |
166 | #endif /* USE_THREADS */ |
167 | |
79072805 |
168 | linestr = NEWSV(65,80); |
ed6116ce |
169 | sv_upgrade(linestr,SVt_PVIV); |
79072805 |
170 | |
6e72f9df |
171 | if (!SvREADONLY(&sv_undef)) { |
172 | SvREADONLY_on(&sv_undef); |
79072805 |
173 | |
6e72f9df |
174 | sv_setpv(&sv_no,No); |
175 | SvNV(&sv_no); |
176 | SvREADONLY_on(&sv_no); |
79072805 |
177 | |
6e72f9df |
178 | sv_setpv(&sv_yes,Yes); |
179 | SvNV(&sv_yes); |
180 | SvREADONLY_on(&sv_yes); |
181 | } |
79072805 |
182 | |
c07a80fd |
183 | nrs = newSVpv("\n", 1); |
184 | rs = SvREFCNT_inc(nrs); |
185 | |
76e3520e |
186 | #ifdef PERL_OBJECT |
187 | /* TODO: */ |
188 | /* sighandlerp = sighandler; */ |
189 | #else |
c23142e2 |
190 | sighandlerp = sighandler; |
76e3520e |
191 | #endif |
44a8e56a |
192 | pidstatus = newHV(); |
193 | |
79072805 |
194 | #ifdef MSDOS |
195 | /* |
196 | * There is no way we can refer to them from Perl so close them to save |
197 | * space. The other alternative would be to provide STDAUX and STDPRN |
198 | * filehandles. |
199 | */ |
200 | (void)fclose(stdaux); |
201 | (void)fclose(stdprn); |
202 | #endif |
203 | } |
204 | |
1a441de9 |
205 | init_stacks(ARGS); |
8990e307 |
206 | #ifdef MULTIPLICITY |
8ebc5c01 |
207 | I_REINIT; |
208 | perl_destruct_level = 1; |
209 | #else |
210 | if(perl_destruct_level > 0) |
211 | I_REINIT; |
79072805 |
212 | #endif |
213 | |
748a9306 |
214 | init_ids(); |
fb73857a |
215 | lex_state = LEX_NOTPARSING; |
a5f75d66 |
216 | |
54310121 |
217 | start_env.je_prev = NULL; |
218 | start_env.je_ret = -1; |
219 | start_env.je_mustcatch = TRUE; |
220 | top_env = &start_env; |
f86702cc |
221 | STATUS_ALL_SUCCESS; |
222 | |
36477c24 |
223 | SET_NUMERIC_STANDARD(); |
a5f75d66 |
224 | #if defined(SUBVERSION) && SUBVERSION > 0 |
e2666263 |
225 | sprintf(patchlevel, "%7.5f", (double) 5 |
226 | + ((double) PATCHLEVEL / (double) 1000) |
227 | + ((double) SUBVERSION / (double) 100000)); |
a5f75d66 |
228 | #else |
e2666263 |
229 | sprintf(patchlevel, "%5.3f", (double) 5 + |
230 | ((double) PATCHLEVEL / (double) 1000)); |
a5f75d66 |
231 | #endif |
79072805 |
232 | |
ab821d7f |
233 | #if defined(LOCAL_PATCH_COUNT) |
6e72f9df |
234 | localpatches = local_patches; /* For possible -v */ |
ab821d7f |
235 | #endif |
236 | |
4b556e6c |
237 | PerlIO_init(); /* Hook to IO system */ |
760ac839 |
238 | |
4b556e6c |
239 | fdpid = newAV(); /* for remembering popen pids by fd */ |
240 | modglobal = newHV(); /* pointers to per-interpreter module globals */ |
8990e307 |
241 | |
11343788 |
242 | DEBUG( { |
243 | New(51,debname,128,char); |
244 | New(52,debdelim,128,char); |
245 | } ) |
246 | |
8990e307 |
247 | ENTER; |
79072805 |
248 | } |
249 | |
250 | void |
76e3520e |
251 | #ifdef PERL_OBJECT |
252 | CPerlObj::perl_destruct(void) |
253 | #else |
8ac85365 |
254 | perl_destruct(register PerlInterpreter *sv_interp) |
76e3520e |
255 | #endif |
79072805 |
256 | { |
11343788 |
257 | dTHR; |
748a9306 |
258 | int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
8990e307 |
259 | I32 last_sv_count; |
a0d0e21e |
260 | HV *hv; |
1f2bfc8a |
261 | #ifdef USE_THREADS |
33f46ff6 |
262 | Thread t; |
1f2bfc8a |
263 | #endif /* USE_THREADS */ |
8990e307 |
264 | |
76e3520e |
265 | #ifndef PERL_OBJECT |
79072805 |
266 | if (!(curinterp = sv_interp)) |
267 | return; |
76e3520e |
268 | #endif |
748a9306 |
269 | |
11343788 |
270 | #ifdef USE_THREADS |
0f15f207 |
271 | #ifndef FAKE_THREADS |
8023c3ce |
272 | /* Pass 1 on any remaining threads: detach joinables, join zombies */ |
273 | retry_cleanup: |
33f46ff6 |
274 | MUTEX_LOCK(&threads_mutex); |
275 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 |
276 | "perl_destruct: waiting for %d threads...\n", |
33f46ff6 |
277 | nthreads - 1)); |
278 | for (t = thr->next; t != thr; t = t->next) { |
605e5515 |
279 | MUTEX_LOCK(&t->mutex); |
280 | switch (ThrSTATE(t)) { |
281 | AV *av; |
c7848ba1 |
282 | case THRf_ZOMBIE: |
283 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
284 | "perl_destruct: joining zombie %p\n", t)); |
605e5515 |
285 | ThrSETSTATE(t, THRf_DEAD); |
286 | MUTEX_UNLOCK(&t->mutex); |
287 | nthreads--; |
8023c3ce |
288 | /* |
289 | * The SvREFCNT_dec below may take a long time (e.g. av |
290 | * may contain an object scalar whose destructor gets |
291 | * called) so we have to unlock threads_mutex and start |
292 | * all over again. |
293 | */ |
605e5515 |
294 | MUTEX_UNLOCK(&threads_mutex); |
ea0efc06 |
295 | JOIN(t, &av); |
605e5515 |
296 | SvREFCNT_dec((SV*)av); |
c7848ba1 |
297 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
298 | "perl_destruct: joined zombie %p OK\n", t)); |
8023c3ce |
299 | goto retry_cleanup; |
c7848ba1 |
300 | case THRf_R_JOINABLE: |
301 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
302 | "perl_destruct: detaching thread %p\n", t)); |
303 | ThrSETSTATE(t, THRf_R_DETACHED); |
304 | /* |
305 | * We unlock threads_mutex and t->mutex in the opposite order |
306 | * from which we locked them just so that DETACH won't |
307 | * deadlock if it panics. It's only a breach of good style |
308 | * not a bug since they are unlocks not locks. |
309 | */ |
310 | MUTEX_UNLOCK(&threads_mutex); |
311 | DETACH(t); |
312 | MUTEX_UNLOCK(&t->mutex); |
8023c3ce |
313 | goto retry_cleanup; |
c7848ba1 |
314 | default: |
315 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
316 | "perl_destruct: ignoring %p (state %u)\n", |
317 | t, ThrSTATE(t))); |
318 | MUTEX_UNLOCK(&t->mutex); |
c7848ba1 |
319 | /* fall through and out */ |
33f46ff6 |
320 | } |
321 | } |
8023c3ce |
322 | /* We leave the above "Pass 1" loop with threads_mutex still locked */ |
323 | |
324 | /* Pass 2 on remaining threads: wait for the thread count to drop to one */ |
11343788 |
325 | while (nthreads > 1) |
326 | { |
33f46ff6 |
327 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 |
328 | "perl_destruct: final wait for %d threads\n", |
33f46ff6 |
329 | nthreads - 1)); |
330 | COND_WAIT(&nthreads_cond, &threads_mutex); |
11343788 |
331 | } |
332 | /* At this point, we're the last thread */ |
33f46ff6 |
333 | MUTEX_UNLOCK(&threads_mutex); |
d9f997d7 |
334 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "perl_destruct: armageddon has arrived\n")); |
33f46ff6 |
335 | MUTEX_DESTROY(&threads_mutex); |
11343788 |
336 | COND_DESTROY(&nthreads_cond); |
0f15f207 |
337 | #endif /* !defined(FAKE_THREADS) */ |
11343788 |
338 | #endif /* USE_THREADS */ |
339 | |
748a9306 |
340 | destruct_level = perl_destruct_level; |
4633a7c4 |
341 | #ifdef DEBUGGING |
342 | { |
343 | char *s; |
76e3520e |
344 | if (s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL")) { |
5f05dabc |
345 | int i = atoi(s); |
346 | if (destruct_level < i) |
347 | destruct_level = i; |
348 | } |
4633a7c4 |
349 | } |
350 | #endif |
351 | |
8990e307 |
352 | LEAVE; |
a0d0e21e |
353 | FREETMPS; |
354 | |
ff0cee69 |
355 | /* We must account for everything. */ |
356 | |
357 | /* Destroy the main CV and syntax tree */ |
6e72f9df |
358 | if (main_root) { |
359 | curpad = AvARRAY(comppad); |
360 | op_free(main_root); |
ff0cee69 |
361 | main_root = Nullop; |
a0d0e21e |
362 | } |
bac4b2ad |
363 | curcop = &compiling; |
ff0cee69 |
364 | main_start = Nullop; |
365 | SvREFCNT_dec(main_cv); |
366 | main_cv = Nullcv; |
367 | |
a0d0e21e |
368 | if (sv_objcount) { |
369 | /* |
370 | * Try to destruct global references. We do this first so that the |
371 | * destructors and destructees still exist. Some sv's might remain. |
372 | * Non-referenced objects are on their own. |
373 | */ |
374 | |
375 | dirty = TRUE; |
376 | sv_clean_objs(); |
8990e307 |
377 | } |
378 | |
5cd24f17 |
379 | /* unhook hooks which will soon be, or use, destroyed data */ |
380 | SvREFCNT_dec(warnhook); |
381 | warnhook = Nullsv; |
382 | SvREFCNT_dec(diehook); |
383 | diehook = Nullsv; |
384 | SvREFCNT_dec(parsehook); |
385 | parsehook = Nullsv; |
386 | |
4b556e6c |
387 | /* call exit list functions */ |
388 | while (exitlistlen-- > 0) |
873ef191 |
389 | exitlist[exitlistlen].fn(THIS_ exitlist[exitlistlen].ptr); |
4b556e6c |
390 | |
391 | Safefree(exitlist); |
392 | |
a0d0e21e |
393 | if (destruct_level == 0){ |
8990e307 |
394 | |
a0d0e21e |
395 | DEBUG_P(debprofdump()); |
396 | |
397 | /* The exit() function will do everything that needs doing. */ |
398 | return; |
399 | } |
5dd60ef7 |
400 | |
5f05dabc |
401 | /* loosen bonds of global variables */ |
402 | |
8ebc5c01 |
403 | if(rsfp) { |
404 | (void)PerlIO_close(rsfp); |
405 | rsfp = Nullfp; |
406 | } |
407 | |
408 | /* Filters for program text */ |
409 | SvREFCNT_dec(rsfp_filters); |
410 | rsfp_filters = Nullav; |
411 | |
412 | /* switches */ |
413 | preprocess = FALSE; |
414 | minus_n = FALSE; |
415 | minus_p = FALSE; |
416 | minus_l = FALSE; |
417 | minus_a = FALSE; |
418 | minus_F = FALSE; |
419 | doswitches = FALSE; |
420 | dowarn = FALSE; |
421 | doextract = FALSE; |
422 | sawampersand = FALSE; /* must save all match strings */ |
423 | sawstudy = FALSE; /* do fbm_instr on all strings */ |
424 | sawvec = FALSE; |
425 | unsafe = FALSE; |
426 | |
427 | Safefree(inplace); |
428 | inplace = Nullch; |
429 | |
afe37c7d |
430 | if (e_script) { |
431 | SvREFCNT_dec(e_script); |
432 | e_script = Nullsv; |
8ebc5c01 |
433 | } |
434 | |
435 | /* magical thingies */ |
436 | |
437 | Safefree(ofs); /* $, */ |
438 | ofs = Nullch; |
5f05dabc |
439 | |
8ebc5c01 |
440 | Safefree(ors); /* $\ */ |
441 | ors = Nullch; |
442 | |
443 | SvREFCNT_dec(nrs); /* $\ helper */ |
5f05dabc |
444 | nrs = Nullsv; |
445 | |
8ebc5c01 |
446 | multiline = 0; /* $* */ |
5f05dabc |
447 | |
8ebc5c01 |
448 | SvREFCNT_dec(statname); |
5f05dabc |
449 | statname = Nullsv; |
450 | statgv = Nullgv; |
5f05dabc |
451 | |
8ebc5c01 |
452 | /* defgv, aka *_ should be taken care of elsewhere */ |
453 | |
8ebc5c01 |
454 | /* clean up after study() */ |
455 | SvREFCNT_dec(lastscream); |
456 | lastscream = Nullsv; |
457 | Safefree(screamfirst); |
458 | screamfirst = 0; |
459 | Safefree(screamnext); |
460 | screamnext = 0; |
461 | |
462 | /* startup and shutdown function lists */ |
463 | SvREFCNT_dec(beginav); |
464 | SvREFCNT_dec(endav); |
77a005ab |
465 | SvREFCNT_dec(initav); |
5618dfe8 |
466 | beginav = Nullav; |
5618dfe8 |
467 | endav = Nullav; |
77a005ab |
468 | initav = Nullav; |
5618dfe8 |
469 | |
8ebc5c01 |
470 | /* shortcuts just get cleared */ |
471 | envgv = Nullgv; |
472 | siggv = Nullgv; |
473 | incgv = Nullgv; |
12f917ad |
474 | errgv = Nullgv; |
8ebc5c01 |
475 | argvgv = Nullgv; |
476 | argvoutgv = Nullgv; |
477 | stdingv = Nullgv; |
478 | last_in_gv = Nullgv; |
479 | |
480 | /* reset so print() ends up where we expect */ |
481 | setdefout(Nullgv); |
482 | |
a0d0e21e |
483 | /* Prepare to destruct main symbol table. */ |
5f05dabc |
484 | |
a0d0e21e |
485 | hv = defstash; |
85e6fe83 |
486 | defstash = 0; |
a0d0e21e |
487 | SvREFCNT_dec(hv); |
488 | |
489 | FREETMPS; |
490 | if (destruct_level >= 2) { |
491 | if (scopestack_ix != 0) |
ff0cee69 |
492 | warn("Unbalanced scopes: %ld more ENTERs than LEAVEs\n", |
493 | (long)scopestack_ix); |
a0d0e21e |
494 | if (savestack_ix != 0) |
ff0cee69 |
495 | warn("Unbalanced saves: %ld more saves than restores\n", |
496 | (long)savestack_ix); |
a0d0e21e |
497 | if (tmps_floor != -1) |
ff0cee69 |
498 | warn("Unbalanced tmps: %ld more allocs than frees\n", |
499 | (long)tmps_floor + 1); |
a0d0e21e |
500 | if (cxstack_ix != -1) |
ff0cee69 |
501 | warn("Unbalanced context: %ld more PUSHes than POPs\n", |
502 | (long)cxstack_ix + 1); |
a0d0e21e |
503 | } |
8990e307 |
504 | |
505 | /* Now absolutely destruct everything, somehow or other, loops or no. */ |
8990e307 |
506 | last_sv_count = 0; |
6e72f9df |
507 | SvFLAGS(strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
8990e307 |
508 | while (sv_count != 0 && sv_count != last_sv_count) { |
509 | last_sv_count = sv_count; |
510 | sv_clean_all(); |
511 | } |
6e72f9df |
512 | SvFLAGS(strtab) &= ~SVTYPEMASK; |
513 | SvFLAGS(strtab) |= SVt_PVHV; |
514 | |
515 | /* Destruct the global string table. */ |
516 | { |
517 | /* Yell and reset the HeVAL() slots that are still holding refcounts, |
518 | * so that sv_free() won't fail on them. |
519 | */ |
520 | I32 riter; |
521 | I32 max; |
522 | HE *hent; |
523 | HE **array; |
524 | |
525 | riter = 0; |
526 | max = HvMAX(strtab); |
527 | array = HvARRAY(strtab); |
528 | hent = array[0]; |
529 | for (;;) { |
530 | if (hent) { |
531 | warn("Unbalanced string table refcount: (%d) for \"%s\"", |
532 | HeVAL(hent) - Nullsv, HeKEY(hent)); |
533 | HeVAL(hent) = Nullsv; |
534 | hent = HeNEXT(hent); |
535 | } |
536 | if (!hent) { |
537 | if (++riter > max) |
538 | break; |
539 | hent = array[riter]; |
540 | } |
541 | } |
542 | } |
543 | SvREFCNT_dec(strtab); |
544 | |
8990e307 |
545 | if (sv_count != 0) |
ff0cee69 |
546 | warn("Scalars leaked: %ld\n", (long)sv_count); |
6e72f9df |
547 | |
4633a7c4 |
548 | sv_free_arenas(); |
44a8e56a |
549 | |
550 | /* No SVs have survived, need to clean out */ |
551 | linestr = NULL; |
552 | pidstatus = Nullhv; |
6e72f9df |
553 | if (origfilename) |
554 | Safefree(origfilename); |
555 | nuke_stacks(); |
fc36a67e |
556 | hints = 0; /* Reset hints. Should hints be per-interpreter ? */ |
a0d0e21e |
557 | |
558 | DEBUG_P(debprofdump()); |
11343788 |
559 | #ifdef USE_THREADS |
560 | MUTEX_DESTROY(&sv_mutex); |
11343788 |
561 | MUTEX_DESTROY(&eval_mutex); |
c116a00c |
562 | COND_DESTROY(&eval_cond); |
fc36a67e |
563 | |
8023c3ce |
564 | /* As the penultimate thing, free the non-arena SV for thrsv */ |
565 | Safefree(SvPVX(thrsv)); |
566 | Safefree(SvANY(thrsv)); |
567 | Safefree(thrsv); |
568 | thrsv = Nullsv; |
569 | #endif /* USE_THREADS */ |
570 | |
fc36a67e |
571 | /* As the absolutely last thing, free the non-arena SV for mess() */ |
572 | |
573 | if (mess_sv) { |
574 | /* we know that type >= SVt_PV */ |
575 | SvOOK_off(mess_sv); |
576 | Safefree(SvPVX(mess_sv)); |
577 | Safefree(SvANY(mess_sv)); |
578 | Safefree(mess_sv); |
579 | mess_sv = Nullsv; |
580 | } |
79072805 |
581 | } |
582 | |
583 | void |
76e3520e |
584 | #ifdef PERL_OBJECT |
585 | CPerlObj::perl_free(void) |
586 | #else |
8ac85365 |
587 | perl_free(PerlInterpreter *sv_interp) |
76e3520e |
588 | #endif |
79072805 |
589 | { |
76e3520e |
590 | #ifdef PERL_OBJECT |
565764a8 |
591 | Safefree(this); |
76e3520e |
592 | #else |
79072805 |
593 | if (!(curinterp = sv_interp)) |
594 | return; |
595 | Safefree(sv_interp); |
76e3520e |
596 | #endif |
79072805 |
597 | } |
598 | |
4b556e6c |
599 | void |
873ef191 |
600 | #ifdef PERL_OBJECT |
601 | CPerlObj::perl_atexit(void (*fn) (CPerlObj*,void *), void *ptr) |
602 | #else |
4b556e6c |
603 | perl_atexit(void (*fn) (void *), void *ptr) |
873ef191 |
604 | #endif |
4b556e6c |
605 | { |
606 | Renew(exitlist, exitlistlen+1, PerlExitListEntry); |
607 | exitlist[exitlistlen].fn = fn; |
608 | exitlist[exitlistlen].ptr = ptr; |
609 | ++exitlistlen; |
610 | } |
611 | |
79072805 |
612 | int |
76e3520e |
613 | #ifdef PERL_OBJECT |
614 | CPerlObj::perl_parse(void (*xsinit) (CPerlObj*), int argc, char **argv, char **env) |
615 | #else |
8ac85365 |
616 | perl_parse(PerlInterpreter *sv_interp, void (*xsinit) (void), int argc, char **argv, char **env) |
76e3520e |
617 | #endif |
8d063cd8 |
618 | { |
11343788 |
619 | dTHR; |
79072805 |
620 | register SV *sv; |
8d063cd8 |
621 | register char *s; |
1a30305b |
622 | char *scriptname = NULL; |
a0d0e21e |
623 | VOL bool dosearch = FALSE; |
13281fa4 |
624 | char *validarg = ""; |
2ae324a7 |
625 | I32 oldscope; |
748a9306 |
626 | AV* comppadlist; |
54310121 |
627 | dJMPENV; |
22921e25 |
628 | int ret; |
01f988be |
629 | int fdscript = -1; |
8d063cd8 |
630 | |
a687059c |
631 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
632 | #ifdef IAMSUID |
633 | #undef IAMSUID |
463ee0b2 |
634 | croak("suidperl is no longer needed since the kernel can now execute\n\ |
a687059c |
635 | setuid perl scripts securely.\n"); |
636 | #endif |
637 | #endif |
638 | |
76e3520e |
639 | #ifndef PERL_OBJECT |
79072805 |
640 | if (!(curinterp = sv_interp)) |
641 | return 255; |
76e3520e |
642 | #endif |
79072805 |
643 | |
6e72f9df |
644 | #if defined(NeXT) && defined(__DYNAMIC__) |
645 | _dyld_lookup_and_bind |
646 | ("__environ", (unsigned long *) &environ_pointer, NULL); |
647 | #endif /* environ */ |
648 | |
ac58e20f |
649 | origargv = argv; |
650 | origargc = argc; |
a0d0e21e |
651 | #ifndef VMS /* VMS doesn't have environ array */ |
fe14fcc3 |
652 | origenviron = environ; |
a0d0e21e |
653 | #endif |
654 | |
655 | if (do_undump) { |
656 | |
657 | /* Come here if running an undumped a.out. */ |
658 | |
659 | origfilename = savepv(argv[0]); |
660 | do_undump = FALSE; |
661 | cxstack_ix = -1; /* start label stack again */ |
748a9306 |
662 | init_ids(); |
a0d0e21e |
663 | init_postdump_symbols(argc,argv,env); |
664 | return 0; |
665 | } |
666 | |
ff0cee69 |
667 | if (main_root) { |
668 | curpad = AvARRAY(comppad); |
a0d0e21e |
669 | op_free(main_root); |
ff0cee69 |
670 | main_root = Nullop; |
671 | } |
672 | main_start = Nullop; |
673 | SvREFCNT_dec(main_cv); |
674 | main_cv = Nullcv; |
79072805 |
675 | |
f86702cc |
676 | time(&basetime); |
2ae324a7 |
677 | oldscope = scopestack_ix; |
f86702cc |
678 | |
22921e25 |
679 | JMPENV_PUSH(ret); |
680 | switch (ret) { |
79072805 |
681 | case 1: |
f86702cc |
682 | STATUS_ALL_FAILURE; |
683 | /* FALL THROUGH */ |
79072805 |
684 | case 2: |
f86702cc |
685 | /* my_exit() was called */ |
2ae324a7 |
686 | while (scopestack_ix > oldscope) |
687 | LEAVE; |
84902520 |
688 | FREETMPS; |
8990e307 |
689 | curstash = defstash; |
690 | if (endav) |
68dc0745 |
691 | call_list(oldscope, endav); |
54310121 |
692 | JMPENV_POP; |
f86702cc |
693 | return STATUS_NATIVE_EXPORT; |
79072805 |
694 | case 3: |
54310121 |
695 | JMPENV_POP; |
760ac839 |
696 | PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); |
8990e307 |
697 | return 1; |
79072805 |
698 | } |
699 | |
79072805 |
700 | sv_setpvn(linestr,"",0); |
701 | sv = newSVpv("",0); /* first used for -I flags */ |
8990e307 |
702 | SAVEFREESV(sv); |
79072805 |
703 | init_main_stash(); |
54310121 |
704 | |
33b78306 |
705 | for (argc--,argv++; argc > 0; argc--,argv++) { |
8d063cd8 |
706 | if (argv[0][0] != '-' || !argv[0][1]) |
707 | break; |
13281fa4 |
708 | #ifdef DOSUID |
709 | if (*validarg) |
710 | validarg = " PHOOEY "; |
711 | else |
712 | validarg = argv[0]; |
713 | #endif |
714 | s = argv[0]+1; |
8d063cd8 |
715 | reswitch: |
13281fa4 |
716 | switch (*s) { |
7b8d334a |
717 | case ' ': |
27e2fb84 |
718 | case '0': |
2304df62 |
719 | case 'F': |
378cc40b |
720 | case 'a': |
33b78306 |
721 | case 'c': |
a687059c |
722 | case 'd': |
8d063cd8 |
723 | case 'D': |
4633a7c4 |
724 | case 'h': |
33b78306 |
725 | case 'i': |
fe14fcc3 |
726 | case 'l': |
1a30305b |
727 | case 'M': |
728 | case 'm': |
33b78306 |
729 | case 'n': |
730 | case 'p': |
79072805 |
731 | case 's': |
33b78306 |
732 | case 'u': |
733 | case 'U': |
734 | case 'v': |
735 | case 'w': |
736 | if (s = moreswitches(s)) |
737 | goto reswitch; |
8d063cd8 |
738 | break; |
33b78306 |
739 | |
f86702cc |
740 | case 'T': |
741 | tainting = TRUE; |
742 | s++; |
743 | goto reswitch; |
744 | |
8d063cd8 |
745 | case 'e': |
a687059c |
746 | if (euid != uid || egid != gid) |
463ee0b2 |
747 | croak("No -e allowed in setuid scripts"); |
afe37c7d |
748 | if (!e_script) { |
3c78fafa |
749 | e_script = newSVpv("",0); |
afe37c7d |
750 | filter_add(read_e_script, NULL); |
8d063cd8 |
751 | } |
552a7a9b |
752 | if (*++s) |
afe37c7d |
753 | sv_catpv(e_script, s); |
552a7a9b |
754 | else if (argv[1]) { |
afe37c7d |
755 | sv_catpv(e_script, argv[1]); |
33b78306 |
756 | argc--,argv++; |
757 | } |
552a7a9b |
758 | else |
759 | croak("No code specified for -e"); |
afe37c7d |
760 | sv_catpv(e_script, "\n"); |
8d063cd8 |
761 | break; |
afe37c7d |
762 | |
fb73857a |
763 | case 'I': /* -I handled both here and in moreswitches() */ |
bbce6d69 |
764 | forbid_setid("-I"); |
fb73857a |
765 | if (!*++s && (s=argv[1]) != Nullch) { |
8d063cd8 |
766 | argc--,argv++; |
8d063cd8 |
767 | } |
fb73857a |
768 | while (s && isSPACE(*s)) |
769 | ++s; |
770 | if (s && *s) { |
771 | char *e, *p; |
772 | for (e = s; *e && !isSPACE(*e); e++) ; |
773 | p = savepvn(s, e-s); |
774 | incpush(p, TRUE); |
775 | sv_catpv(sv,"-I"); |
776 | sv_catpv(sv,p); |
777 | sv_catpv(sv," "); |
778 | Safefree(p); |
779 | } /* XXX else croak? */ |
8d063cd8 |
780 | break; |
8d063cd8 |
781 | case 'P': |
bbce6d69 |
782 | forbid_setid("-P"); |
8d063cd8 |
783 | preprocess = TRUE; |
13281fa4 |
784 | s++; |
8d063cd8 |
785 | goto reswitch; |
378cc40b |
786 | case 'S': |
bbce6d69 |
787 | forbid_setid("-S"); |
378cc40b |
788 | dosearch = TRUE; |
13281fa4 |
789 | s++; |
378cc40b |
790 | goto reswitch; |
1a30305b |
791 | case 'V': |
792 | if (!preambleav) |
793 | preambleav = newAV(); |
794 | av_push(preambleav, newSVpv("use Config qw(myconfig config_vars)",0)); |
795 | if (*++s != ':') { |
6e72f9df |
796 | Sv = newSVpv("print myconfig();",0); |
797 | #ifdef VMS |
798 | sv_catpv(Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\","); |
799 | #else |
800 | sv_catpv(Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\","); |
801 | #endif |
54310121 |
802 | #if defined(DEBUGGING) || defined(NO_EMBED) || defined(MULTIPLICITY) |
46fc3d4c |
803 | sv_catpv(Sv,"\" Compile-time options:"); |
6e72f9df |
804 | # ifdef DEBUGGING |
46fc3d4c |
805 | sv_catpv(Sv," DEBUGGING"); |
6e72f9df |
806 | # endif |
54310121 |
807 | # ifdef NO_EMBED |
46fc3d4c |
808 | sv_catpv(Sv," NO_EMBED"); |
6e72f9df |
809 | # endif |
810 | # ifdef MULTIPLICITY |
46fc3d4c |
811 | sv_catpv(Sv," MULTIPLICITY"); |
6e72f9df |
812 | # endif |
46fc3d4c |
813 | sv_catpv(Sv,"\\n\","); |
6e72f9df |
814 | #endif |
815 | #if defined(LOCAL_PATCH_COUNT) |
54310121 |
816 | if (LOCAL_PATCH_COUNT > 0) { |
817 | int i; |
5cd24f17 |
818 | sv_catpv(Sv,"\" Locally applied patches:\\n\","); |
6e72f9df |
819 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { |
46fc3d4c |
820 | if (localpatches[i]) |
821 | sv_catpvf(Sv,"\" \\t%s\\n\",",localpatches[i]); |
6e72f9df |
822 | } |
823 | } |
824 | #endif |
46fc3d4c |
825 | sv_catpvf(Sv,"\" Built under %s\\n\"",OSNAME); |
6e72f9df |
826 | #ifdef __DATE__ |
827 | # ifdef __TIME__ |
46fc3d4c |
828 | sv_catpvf(Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__); |
6e72f9df |
829 | # else |
46fc3d4c |
830 | sv_catpvf(Sv,",\" Compiled on %s\\n\"",__DATE__); |
6e72f9df |
831 | # endif |
6e72f9df |
832 | #endif |
54310121 |
833 | sv_catpv(Sv, "; \ |
834 | $\"=\"\\n \"; \ |
835 | @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; \ |
836 | print \" \\%ENV:\\n @env\\n\" if @env; \ |
837 | print \" \\@INC:\\n @INC\\n\";"); |
1a30305b |
838 | } |
839 | else { |
840 | Sv = newSVpv("config_vars(qw(",0); |
841 | sv_catpv(Sv, ++s); |
842 | sv_catpv(Sv, "))"); |
843 | s += strlen(s); |
844 | } |
845 | av_push(preambleav, Sv); |
c07a80fd |
846 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
1a30305b |
847 | goto reswitch; |
33b78306 |
848 | case 'x': |
849 | doextract = TRUE; |
13281fa4 |
850 | s++; |
33b78306 |
851 | if (*s) |
a0d0e21e |
852 | cddir = savepv(s); |
33b78306 |
853 | break; |
8d063cd8 |
854 | case 0: |
855 | break; |
fb73857a |
856 | case '-': |
857 | if (!*++s || isSPACE(*s)) { |
858 | argc--,argv++; |
859 | goto switch_end; |
860 | } |
861 | /* catch use of gnu style long options */ |
862 | if (strEQ(s, "version")) { |
863 | s = "v"; |
864 | goto reswitch; |
865 | } |
866 | if (strEQ(s, "help")) { |
867 | s = "h"; |
868 | goto reswitch; |
869 | } |
870 | s--; |
871 | /* FALL THROUGH */ |
8d063cd8 |
872 | default: |
90248788 |
873 | croak("Unrecognized switch: -%s (-h will show valid options)",s); |
8d063cd8 |
874 | } |
875 | } |
876 | switch_end: |
54310121 |
877 | |
76e3520e |
878 | if (!tainting && (s = PerlEnv_getenv("PERL5OPT"))) { |
fb73857a |
879 | while (s && *s) { |
54310121 |
880 | while (isSPACE(*s)) |
881 | s++; |
882 | if (*s == '-') { |
883 | s++; |
884 | if (isSPACE(*s)) |
885 | continue; |
886 | } |
887 | if (!*s) |
888 | break; |
889 | if (!strchr("DIMUdmw", *s)) |
890 | croak("Illegal switch in PERL5OPT: -%c", *s); |
891 | s = moreswitches(s); |
892 | } |
893 | } |
894 | |
1a30305b |
895 | if (!scriptname) |
896 | scriptname = argv[0]; |
afe37c7d |
897 | if (e_script) { |
8d063cd8 |
898 | argc++,argv--; |
afe37c7d |
899 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
8d063cd8 |
900 | } |
79072805 |
901 | else if (scriptname == Nullch) { |
902 | #ifdef MSDOS |
6ad3d225 |
903 | if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) ) |
55497cff |
904 | moreswitches("h"); |
fe14fcc3 |
905 | #endif |
79072805 |
906 | scriptname = "-"; |
907 | } |
fe14fcc3 |
908 | |
79072805 |
909 | init_perllib(); |
8d063cd8 |
910 | |
01f988be |
911 | open_script(scriptname,dosearch,sv,&fdscript); |
8d063cd8 |
912 | |
01f988be |
913 | validate_suid(validarg, scriptname,fdscript); |
378cc40b |
914 | |
79072805 |
915 | if (doextract) |
916 | find_beginning(); |
917 | |
4fdae800 |
918 | main_cv = compcv = (CV*)NEWSV(1104,0); |
748a9306 |
919 | sv_upgrade((SV *)compcv, SVt_PVCV); |
07055b4c |
920 | CvUNIQUE_on(compcv); |
748a9306 |
921 | |
6e72f9df |
922 | comppad = newAV(); |
79072805 |
923 | av_push(comppad, Nullsv); |
924 | curpad = AvARRAY(comppad); |
6e72f9df |
925 | comppad_name = newAV(); |
8990e307 |
926 | comppad_name_fill = 0; |
e858de61 |
927 | min_intro_pending = 0; |
928 | padix = 0; |
11343788 |
929 | #ifdef USE_THREADS |
930 | av_store(comppad_name, 0, newSVpv("@_", 2)); |
e858de61 |
931 | curpad[0] = (SV*)newAV(); |
6d4ff0d2 |
932 | SvPADMY_on(curpad[0]); /* XXX Needed? */ |
e858de61 |
933 | CvOWNER(compcv) = 0; |
12ca11f6 |
934 | New(666, CvMUTEXP(compcv), 1, perl_mutex); |
e858de61 |
935 | MUTEX_INIT(CvMUTEXP(compcv)); |
11343788 |
936 | #endif /* USE_THREADS */ |
79072805 |
937 | |
748a9306 |
938 | comppadlist = newAV(); |
939 | AvREAL_off(comppadlist); |
8e07c86e |
940 | av_store(comppadlist, 0, (SV*)comppad_name); |
941 | av_store(comppadlist, 1, (SV*)comppad); |
748a9306 |
942 | CvPADLIST(compcv) = comppadlist; |
943 | |
6e72f9df |
944 | boot_core_UNIVERSAL(); |
c69f6586 |
945 | |
a0d0e21e |
946 | if (xsinit) |
76e3520e |
947 | (*xsinit)(THIS); /* in case linked C routines want magical variables */ |
39e571d4 |
948 | #if defined(VMS) || defined(WIN32) || defined(DJGPP) |
748a9306 |
949 | init_os_extras(); |
950 | #endif |
93a17b20 |
951 | |
93a17b20 |
952 | init_predump_symbols(); |
1d3434b8 |
953 | /* init_postdump_symbols not currently designed to be called */ |
954 | /* more than once (ENV isn't cleared first, for example) */ |
955 | /* But running with -u leaves %ENV & @ARGV undefined! XXX */ |
8990e307 |
956 | if (!do_undump) |
957 | init_postdump_symbols(argc,argv,env); |
93a17b20 |
958 | |
79072805 |
959 | init_lexer(); |
960 | |
961 | /* now parse the script */ |
962 | |
61bb5906 |
963 | SETERRNO(0,SS$_NORMAL); |
79072805 |
964 | error_count = 0; |
965 | if (yyparse() || error_count) { |
966 | if (minus_c) |
463ee0b2 |
967 | croak("%s had compilation errors.\n", origfilename); |
79072805 |
968 | else { |
463ee0b2 |
969 | croak("Execution of %s aborted due to compilation errors.\n", |
79072805 |
970 | origfilename); |
378cc40b |
971 | } |
79072805 |
972 | } |
973 | curcop->cop_line = 0; |
974 | curstash = defstash; |
975 | preprocess = FALSE; |
afe37c7d |
976 | if (e_script) { |
977 | SvREFCNT_dec(e_script); |
978 | e_script = Nullsv; |
378cc40b |
979 | } |
a687059c |
980 | |
93a17b20 |
981 | /* now that script is parsed, we can modify record separator */ |
c07a80fd |
982 | SvREFCNT_dec(rs); |
983 | rs = SvREFCNT_inc(nrs); |
e1c148c2 |
984 | sv_setsv(perl_get_sv("/", TRUE), rs); |
79072805 |
985 | if (do_undump) |
986 | my_unexec(); |
987 | |
8990e307 |
988 | if (dowarn) |
989 | gv_check(defstash); |
990 | |
a0d0e21e |
991 | LEAVE; |
992 | FREETMPS; |
c07a80fd |
993 | |
3562ef9b |
994 | #ifdef MYMALLOC |
76e3520e |
995 | if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) |
c07a80fd |
996 | dump_mstats("after compilation:"); |
997 | #endif |
998 | |
a0d0e21e |
999 | ENTER; |
1000 | restartop = 0; |
54310121 |
1001 | JMPENV_POP; |
79072805 |
1002 | return 0; |
1003 | } |
1004 | |
1005 | int |
76e3520e |
1006 | #ifdef PERL_OBJECT |
1007 | CPerlObj::perl_run(void) |
1008 | #else |
8ac85365 |
1009 | perl_run(PerlInterpreter *sv_interp) |
76e3520e |
1010 | #endif |
79072805 |
1011 | { |
e336de0d |
1012 | dSP; |
2ae324a7 |
1013 | I32 oldscope; |
22921e25 |
1014 | dJMPENV; |
1015 | int ret; |
2ae324a7 |
1016 | |
76e3520e |
1017 | #ifndef PERL_OBJECT |
79072805 |
1018 | if (!(curinterp = sv_interp)) |
1019 | return 255; |
76e3520e |
1020 | #endif |
2ae324a7 |
1021 | |
1022 | oldscope = scopestack_ix; |
1023 | |
22921e25 |
1024 | JMPENV_PUSH(ret); |
1025 | switch (ret) { |
79072805 |
1026 | case 1: |
1027 | cxstack_ix = -1; /* start context stack again */ |
1028 | break; |
1029 | case 2: |
f86702cc |
1030 | /* my_exit() was called */ |
2ae324a7 |
1031 | while (scopestack_ix > oldscope) |
1032 | LEAVE; |
84902520 |
1033 | FREETMPS; |
79072805 |
1034 | curstash = defstash; |
93a17b20 |
1035 | if (endav) |
68dc0745 |
1036 | call_list(oldscope, endav); |
3562ef9b |
1037 | #ifdef MYMALLOC |
76e3520e |
1038 | if (PerlEnv_getenv("PERL_DEBUG_MSTATS")) |
c07a80fd |
1039 | dump_mstats("after execution: "); |
1040 | #endif |
54310121 |
1041 | JMPENV_POP; |
f86702cc |
1042 | return STATUS_NATIVE_EXPORT; |
79072805 |
1043 | case 3: |
1044 | if (!restartop) { |
760ac839 |
1045 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e |
1046 | FREETMPS; |
54310121 |
1047 | JMPENV_POP; |
8990e307 |
1048 | return 1; |
83025b21 |
1049 | } |
e336de0d |
1050 | POPSTACK_TO(mainstack); |
79072805 |
1051 | break; |
8d063cd8 |
1052 | } |
79072805 |
1053 | |
fb73857a |
1054 | DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n", |
6e72f9df |
1055 | sawampersand ? "Enabling" : "Omitting")); |
1056 | |
79072805 |
1057 | if (!restartop) { |
1058 | DEBUG_x(dump_all()); |
760ac839 |
1059 | DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); |
11343788 |
1060 | #ifdef USE_THREADS |
5dc0d613 |
1061 | DEBUG_L(PerlIO_printf(Perl_debug_log, "main thread is 0x%lx\n", |
1062 | (unsigned long) thr)); |
11343788 |
1063 | #endif /* USE_THREADS */ |
79072805 |
1064 | |
1065 | if (minus_c) { |
760ac839 |
1066 | PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", origfilename); |
79072805 |
1067 | my_exit(0); |
1068 | } |
84902520 |
1069 | if (PERLDB_SINGLE && DBsingle) |
a0d0e21e |
1070 | sv_setiv(DBsingle, 1); |
7d07dbc2 |
1071 | if (initav) |
1072 | call_list(oldscope, initav); |
45d8adaa |
1073 | } |
79072805 |
1074 | |
1075 | /* do it */ |
1076 | |
1077 | if (restartop) { |
1078 | op = restartop; |
1079 | restartop = 0; |
76e3520e |
1080 | CALLRUNOPS(); |
79072805 |
1081 | } |
1082 | else if (main_start) { |
4fdae800 |
1083 | CvDEPTH(main_cv) = 1; |
79072805 |
1084 | op = main_start; |
76e3520e |
1085 | CALLRUNOPS(); |
79072805 |
1086 | } |
79072805 |
1087 | |
1088 | my_exit(0); |
54310121 |
1089 | /* NOTREACHED */ |
a0d0e21e |
1090 | return 0; |
79072805 |
1091 | } |
1092 | |
a0d0e21e |
1093 | SV* |
8ac85365 |
1094 | perl_get_sv(char *name, I32 create) |
a0d0e21e |
1095 | { |
2faa37cc |
1096 | GV *gv; |
38a03e6e |
1097 | #ifdef USE_THREADS |
2faa37cc |
1098 | if (name[1] == '\0' && !isALPHA(name[0])) { |
54b9620d |
1099 | PADOFFSET tmp = find_threadsv(name); |
2faa37cc |
1100 | if (tmp != NOT_IN_PAD) { |
1101 | dTHR; |
940cb80d |
1102 | return THREADSV(tmp); |
2faa37cc |
1103 | } |
38a03e6e |
1104 | } |
1105 | #endif /* USE_THREADS */ |
2faa37cc |
1106 | gv = gv_fetchpv(name, create, SVt_PV); |
a0d0e21e |
1107 | if (gv) |
1108 | return GvSV(gv); |
1109 | return Nullsv; |
1110 | } |
1111 | |
1112 | AV* |
8ac85365 |
1113 | perl_get_av(char *name, I32 create) |
a0d0e21e |
1114 | { |
1115 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); |
1116 | if (create) |
1117 | return GvAVn(gv); |
1118 | if (gv) |
1119 | return GvAV(gv); |
1120 | return Nullav; |
1121 | } |
1122 | |
1123 | HV* |
8ac85365 |
1124 | perl_get_hv(char *name, I32 create) |
a0d0e21e |
1125 | { |
1126 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); |
1127 | if (create) |
1128 | return GvHVn(gv); |
1129 | if (gv) |
1130 | return GvHV(gv); |
1131 | return Nullhv; |
1132 | } |
1133 | |
1134 | CV* |
8ac85365 |
1135 | perl_get_cv(char *name, I32 create) |
a0d0e21e |
1136 | { |
1137 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); |
8ebc5c01 |
1138 | if (create && !GvCVu(gv)) |
774d564b |
1139 | return newSUB(start_subparse(FALSE, 0), |
a0d0e21e |
1140 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
4633a7c4 |
1141 | Nullop, |
a0d0e21e |
1142 | Nullop); |
1143 | if (gv) |
8ebc5c01 |
1144 | return GvCVu(gv); |
a0d0e21e |
1145 | return Nullcv; |
1146 | } |
1147 | |
79072805 |
1148 | /* Be sure to refetch the stack pointer after calling these routines. */ |
1149 | |
a0d0e21e |
1150 | I32 |
22239a37 |
1151 | perl_call_argv(char *sub_name, I32 flags, register char **argv) |
8ac85365 |
1152 | |
1153 | /* See G_* flags in cop.h */ |
1154 | /* null terminated arg list */ |
8990e307 |
1155 | { |
a0d0e21e |
1156 | dSP; |
8990e307 |
1157 | |
924508f0 |
1158 | PUSHMARK(SP); |
a0d0e21e |
1159 | if (argv) { |
8990e307 |
1160 | while (*argv) { |
a0d0e21e |
1161 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 |
1162 | argv++; |
1163 | } |
a0d0e21e |
1164 | PUTBACK; |
8990e307 |
1165 | } |
22239a37 |
1166 | return perl_call_pv(sub_name, flags); |
8990e307 |
1167 | } |
1168 | |
a0d0e21e |
1169 | I32 |
22239a37 |
1170 | perl_call_pv(char *sub_name, I32 flags) |
8ac85365 |
1171 | /* name of the subroutine */ |
1172 | /* See G_* flags in cop.h */ |
a0d0e21e |
1173 | { |
22239a37 |
1174 | return perl_call_sv((SV*)perl_get_cv(sub_name, TRUE), flags); |
a0d0e21e |
1175 | } |
1176 | |
1177 | I32 |
8ac85365 |
1178 | perl_call_method(char *methname, I32 flags) |
1179 | /* name of the subroutine */ |
1180 | /* See G_* flags in cop.h */ |
a0d0e21e |
1181 | { |
1182 | dSP; |
1183 | OP myop; |
1184 | if (!op) |
1185 | op = &myop; |
1186 | XPUSHs(sv_2mortal(newSVpv(methname,0))); |
1187 | PUTBACK; |
11343788 |
1188 | pp_method(ARGS); |
6ff81951 |
1189 | if(op == &myop) |
1190 | op = Nullop; |
a0d0e21e |
1191 | return perl_call_sv(*stack_sp--, flags); |
1192 | } |
1193 | |
1194 | /* May be called with any of a CV, a GV, or an SV containing the name. */ |
1195 | I32 |
8ac85365 |
1196 | perl_call_sv(SV *sv, I32 flags) |
1197 | |
1198 | /* See G_* flags in cop.h */ |
a0d0e21e |
1199 | { |
924508f0 |
1200 | dSP; |
a0d0e21e |
1201 | LOGOP myop; /* fake syntax tree node */ |
aa689395 |
1202 | I32 oldmark; |
a0d0e21e |
1203 | I32 retval; |
a0d0e21e |
1204 | I32 oldscope; |
54310121 |
1205 | bool oldcatch = CATCH_GET; |
1206 | dJMPENV; |
22921e25 |
1207 | int ret; |
d6602a8c |
1208 | OP* oldop = op; |
1e422769 |
1209 | |
a0d0e21e |
1210 | if (flags & G_DISCARD) { |
1211 | ENTER; |
1212 | SAVETMPS; |
1213 | } |
1214 | |
aa689395 |
1215 | Zero(&myop, 1, LOGOP); |
54310121 |
1216 | myop.op_next = Nullop; |
f51d4af5 |
1217 | if (!(flags & G_NOARGS)) |
aa689395 |
1218 | myop.op_flags |= OPf_STACKED; |
54310121 |
1219 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
1220 | (flags & G_ARRAY) ? OPf_WANT_LIST : |
1221 | OPf_WANT_SCALAR); |
462e5cf6 |
1222 | SAVEOP(); |
a0d0e21e |
1223 | op = (OP*)&myop; |
aa689395 |
1224 | |
a0d0e21e |
1225 | EXTEND(stack_sp, 1); |
1226 | *++stack_sp = sv; |
aa689395 |
1227 | oldmark = TOPMARK; |
a0d0e21e |
1228 | oldscope = scopestack_ix; |
1229 | |
84902520 |
1230 | if (PERLDB_SUB && curstash != debstash |
36477c24 |
1231 | /* Handle first BEGIN of -d. */ |
1232 | && (DBcv || (DBcv = GvCV(DBsub))) |
1233 | /* Try harder, since this may have been a sighandler, thus |
1234 | * curstash may be meaningless. */ |
491527d0 |
1235 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != debstash) |
1236 | && !(flags & G_NODEBUG)) |
6e72f9df |
1237 | op->op_private |= OPpENTERSUB_DB; |
a0d0e21e |
1238 | |
1239 | if (flags & G_EVAL) { |
a0d0e21e |
1240 | cLOGOP->op_other = op; |
1241 | markstack_ptr--; |
4633a7c4 |
1242 | /* we're trying to emulate pp_entertry() here */ |
1243 | { |
c09156bb |
1244 | register PERL_CONTEXT *cx; |
54310121 |
1245 | I32 gimme = GIMME_V; |
4633a7c4 |
1246 | |
1247 | ENTER; |
1248 | SAVETMPS; |
1249 | |
1250 | push_return(op->op_next); |
1251 | PUSHBLOCK(cx, CXt_EVAL, stack_sp); |
1252 | PUSHEVAL(cx, 0, 0); |
1253 | eval_root = op; /* Only needed so that goto works right. */ |
1254 | |
1255 | in_eval = 1; |
1256 | if (flags & G_KEEPERR) |
1257 | in_eval |= 4; |
1258 | else |
38a03e6e |
1259 | sv_setpv(ERRSV,""); |
4633a7c4 |
1260 | } |
a0d0e21e |
1261 | markstack_ptr++; |
1262 | |
22921e25 |
1263 | JMPENV_PUSH(ret); |
1264 | switch (ret) { |
a0d0e21e |
1265 | case 0: |
1266 | break; |
1267 | case 1: |
f86702cc |
1268 | STATUS_ALL_FAILURE; |
a0d0e21e |
1269 | /* FALL THROUGH */ |
1270 | case 2: |
1271 | /* my_exit() was called */ |
1272 | curstash = defstash; |
1273 | FREETMPS; |
54310121 |
1274 | JMPENV_POP; |
a0d0e21e |
1275 | if (statusvalue) |
1276 | croak("Callback called exit"); |
f86702cc |
1277 | my_exit_jump(); |
a0d0e21e |
1278 | /* NOTREACHED */ |
1279 | case 3: |
1280 | if (restartop) { |
1281 | op = restartop; |
1282 | restartop = 0; |
54310121 |
1283 | break; |
a0d0e21e |
1284 | } |
1285 | stack_sp = stack_base + oldmark; |
1286 | if (flags & G_ARRAY) |
1287 | retval = 0; |
1288 | else { |
1289 | retval = 1; |
1290 | *++stack_sp = &sv_undef; |
1291 | } |
1292 | goto cleanup; |
1293 | } |
1294 | } |
1e422769 |
1295 | else |
54310121 |
1296 | CATCH_SET(TRUE); |
a0d0e21e |
1297 | |
1298 | if (op == (OP*)&myop) |
11343788 |
1299 | op = pp_entersub(ARGS); |
a0d0e21e |
1300 | if (op) |
76e3520e |
1301 | CALLRUNOPS(); |
a0d0e21e |
1302 | retval = stack_sp - (stack_base + oldmark); |
4633a7c4 |
1303 | if ((flags & G_EVAL) && !(flags & G_KEEPERR)) |
38a03e6e |
1304 | sv_setpv(ERRSV,""); |
a0d0e21e |
1305 | |
1306 | cleanup: |
1307 | if (flags & G_EVAL) { |
1308 | if (scopestack_ix > oldscope) { |
a0a2876f |
1309 | SV **newsp; |
1310 | PMOP *newpm; |
1311 | I32 gimme; |
c09156bb |
1312 | register PERL_CONTEXT *cx; |
a0a2876f |
1313 | I32 optype; |
1314 | |
1315 | POPBLOCK(cx,newpm); |
1316 | POPEVAL(cx); |
1317 | pop_return(); |
1318 | curpm = newpm; |
1319 | LEAVE; |
a0d0e21e |
1320 | } |
54310121 |
1321 | JMPENV_POP; |
a0d0e21e |
1322 | } |
1e422769 |
1323 | else |
54310121 |
1324 | CATCH_SET(oldcatch); |
1e422769 |
1325 | |
a0d0e21e |
1326 | if (flags & G_DISCARD) { |
1327 | stack_sp = stack_base + oldmark; |
1328 | retval = 0; |
1329 | FREETMPS; |
1330 | LEAVE; |
1331 | } |
d6602a8c |
1332 | op = oldop; |
a0d0e21e |
1333 | return retval; |
1334 | } |
1335 | |
6e72f9df |
1336 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 |
1337 | |
a0d0e21e |
1338 | I32 |
8ac85365 |
1339 | perl_eval_sv(SV *sv, I32 flags) |
1340 | |
1341 | /* See G_* flags in cop.h */ |
a0d0e21e |
1342 | { |
924508f0 |
1343 | dSP; |
a0d0e21e |
1344 | UNOP myop; /* fake syntax tree node */ |
924508f0 |
1345 | I32 oldmark = SP - stack_base; |
4633a7c4 |
1346 | I32 retval; |
4633a7c4 |
1347 | I32 oldscope; |
54310121 |
1348 | dJMPENV; |
22921e25 |
1349 | int ret; |
84902520 |
1350 | OP* oldop = op; |
1351 | |
4633a7c4 |
1352 | if (flags & G_DISCARD) { |
1353 | ENTER; |
1354 | SAVETMPS; |
1355 | } |
1356 | |
462e5cf6 |
1357 | SAVEOP(); |
79072805 |
1358 | op = (OP*)&myop; |
a0d0e21e |
1359 | Zero(op, 1, UNOP); |
4633a7c4 |
1360 | EXTEND(stack_sp, 1); |
1361 | *++stack_sp = sv; |
1362 | oldscope = scopestack_ix; |
79072805 |
1363 | |
4633a7c4 |
1364 | if (!(flags & G_NOARGS)) |
1365 | myop.op_flags = OPf_STACKED; |
79072805 |
1366 | myop.op_next = Nullop; |
6e72f9df |
1367 | myop.op_type = OP_ENTEREVAL; |
54310121 |
1368 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
1369 | (flags & G_ARRAY) ? OPf_WANT_LIST : |
1370 | OPf_WANT_SCALAR); |
6e72f9df |
1371 | if (flags & G_KEEPERR) |
1372 | myop.op_flags |= OPf_SPECIAL; |
4633a7c4 |
1373 | |
22921e25 |
1374 | JMPENV_PUSH(ret); |
1375 | switch (ret) { |
4633a7c4 |
1376 | case 0: |
1377 | break; |
1378 | case 1: |
f86702cc |
1379 | STATUS_ALL_FAILURE; |
4633a7c4 |
1380 | /* FALL THROUGH */ |
1381 | case 2: |
1382 | /* my_exit() was called */ |
1383 | curstash = defstash; |
1384 | FREETMPS; |
54310121 |
1385 | JMPENV_POP; |
4633a7c4 |
1386 | if (statusvalue) |
1387 | croak("Callback called exit"); |
f86702cc |
1388 | my_exit_jump(); |
4633a7c4 |
1389 | /* NOTREACHED */ |
1390 | case 3: |
1391 | if (restartop) { |
1392 | op = restartop; |
1393 | restartop = 0; |
54310121 |
1394 | break; |
4633a7c4 |
1395 | } |
1396 | stack_sp = stack_base + oldmark; |
1397 | if (flags & G_ARRAY) |
1398 | retval = 0; |
1399 | else { |
1400 | retval = 1; |
1401 | *++stack_sp = &sv_undef; |
1402 | } |
1403 | goto cleanup; |
1404 | } |
1405 | |
1406 | if (op == (OP*)&myop) |
11343788 |
1407 | op = pp_entereval(ARGS); |
4633a7c4 |
1408 | if (op) |
76e3520e |
1409 | CALLRUNOPS(); |
4633a7c4 |
1410 | retval = stack_sp - (stack_base + oldmark); |
6e72f9df |
1411 | if (!(flags & G_KEEPERR)) |
38a03e6e |
1412 | sv_setpv(ERRSV,""); |
4633a7c4 |
1413 | |
1414 | cleanup: |
54310121 |
1415 | JMPENV_POP; |
4633a7c4 |
1416 | if (flags & G_DISCARD) { |
1417 | stack_sp = stack_base + oldmark; |
1418 | retval = 0; |
1419 | FREETMPS; |
1420 | LEAVE; |
1421 | } |
84902520 |
1422 | op = oldop; |
4633a7c4 |
1423 | return retval; |
1424 | } |
1425 | |
137443ea |
1426 | SV* |
8ac85365 |
1427 | perl_eval_pv(char *p, I32 croak_on_error) |
137443ea |
1428 | { |
1429 | dSP; |
1430 | SV* sv = newSVpv(p, 0); |
1431 | |
924508f0 |
1432 | PUSHMARK(SP); |
137443ea |
1433 | perl_eval_sv(sv, G_SCALAR); |
1434 | SvREFCNT_dec(sv); |
1435 | |
1436 | SPAGAIN; |
1437 | sv = POPs; |
1438 | PUTBACK; |
1439 | |
38a03e6e |
1440 | if (croak_on_error && SvTRUE(ERRSV)) |
1441 | croak(SvPVx(ERRSV, na)); |
137443ea |
1442 | |
1443 | return sv; |
1444 | } |
1445 | |
4633a7c4 |
1446 | /* Require a module. */ |
1447 | |
1448 | void |
8ac85365 |
1449 | perl_require_pv(char *pv) |
4633a7c4 |
1450 | { |
1451 | SV* sv = sv_newmortal(); |
1452 | sv_setpv(sv, "require '"); |
1453 | sv_catpv(sv, pv); |
1454 | sv_catpv(sv, "'"); |
1455 | perl_eval_sv(sv, G_DISCARD); |
79072805 |
1456 | } |
1457 | |
79072805 |
1458 | void |
8ac85365 |
1459 | magicname(char *sym, char *name, I32 namlen) |
79072805 |
1460 | { |
1461 | register GV *gv; |
1462 | |
85e6fe83 |
1463 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 |
1464 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
1465 | } |
1466 | |
76e3520e |
1467 | STATIC void |
8ac85365 |
1468 | usage(char *name) /* XXX move this out into a module ? */ |
1469 | |
4633a7c4 |
1470 | { |
ab821d7f |
1471 | /* This message really ought to be max 23 lines. |
1472 | * Removed -h because the user already knows that opton. Others? */ |
fb73857a |
1473 | |
76e3520e |
1474 | static char *usage_msg[] = { |
fb73857a |
1475 | "-0[octal] specify record separator (\\0, if no argument)", |
1476 | "-a autosplit mode with -n or -p (splits $_ into @F)", |
1477 | "-c check syntax only (runs BEGIN and END blocks)", |
1478 | "-d[:debugger] run scripts under debugger", |
1479 | "-D[number/list] set debugging flags (argument is a bit mask or flags)", |
1480 | "-e 'command' one line of script. Several -e's allowed. Omit [programfile].", |
1481 | "-F/pattern/ split() pattern for autosplit (-a). The //'s are optional.", |
1482 | "-i[extension] edit <> files in place (make backup if extension supplied)", |
1483 | "-Idirectory specify @INC/#include directory (may be used more than once)", |
1484 | "-l[octal] enable line ending processing, specifies line terminator", |
1485 | "-[mM][-]module.. executes `use/no module...' before executing your script.", |
1486 | "-n assume 'while (<>) { ... }' loop around your script", |
1487 | "-p assume loop like -n but print line also like sed", |
1488 | "-P run script through C preprocessor before compilation", |
1489 | "-s enable some switch parsing for switches after script name", |
1490 | "-S look for the script using PATH environment variable", |
1491 | "-T turn on tainting checks", |
1492 | "-u dump core after parsing script", |
1493 | "-U allow unsafe operations", |
95103687 |
1494 | "-v print version number, patchlevel plus VERY IMPORTANT perl info", |
fb73857a |
1495 | "-V[:variable] print perl configuration information", |
1496 | "-w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT. Recommended.", |
1497 | "-x[directory] strip off text before #!perl line and perhaps cd to directory", |
1498 | "\n", |
1499 | NULL |
1500 | }; |
76e3520e |
1501 | char **p = usage_msg; |
fb73857a |
1502 | |
ab821d7f |
1503 | printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name); |
fb73857a |
1504 | while (*p) |
1505 | printf("\n %s", *p++); |
4633a7c4 |
1506 | } |
1507 | |
79072805 |
1508 | /* This routine handles any switches that can be given during run */ |
1509 | |
1510 | char * |
8ac85365 |
1511 | moreswitches(char *s) |
79072805 |
1512 | { |
1513 | I32 numlen; |
c07a80fd |
1514 | U32 rschar; |
79072805 |
1515 | |
1516 | switch (*s) { |
1517 | case '0': |
a863c7d1 |
1518 | { |
1519 | dTHR; |
c07a80fd |
1520 | rschar = scan_oct(s, 4, &numlen); |
1521 | SvREFCNT_dec(nrs); |
1522 | if (rschar & ~((U8)~0)) |
1523 | nrs = &sv_undef; |
1524 | else if (!rschar && numlen >= 2) |
1525 | nrs = newSVpv("", 0); |
1526 | else { |
1527 | char ch = rschar; |
1528 | nrs = newSVpv(&ch, 1); |
79072805 |
1529 | } |
1530 | return s + numlen; |
a863c7d1 |
1531 | } |
2304df62 |
1532 | case 'F': |
1533 | minus_F = TRUE; |
a0d0e21e |
1534 | splitstr = savepv(s + 1); |
2304df62 |
1535 | s += strlen(s); |
1536 | return s; |
79072805 |
1537 | case 'a': |
1538 | minus_a = TRUE; |
1539 | s++; |
1540 | return s; |
1541 | case 'c': |
1542 | minus_c = TRUE; |
1543 | s++; |
1544 | return s; |
1545 | case 'd': |
bbce6d69 |
1546 | forbid_setid("-d"); |
4633a7c4 |
1547 | s++; |
c07a80fd |
1548 | if (*s == ':' || *s == '=') { |
46fc3d4c |
1549 | my_setenv("PERL5DB", form("use Devel::%s;", ++s)); |
4633a7c4 |
1550 | s += strlen(s); |
4633a7c4 |
1551 | } |
a0d0e21e |
1552 | if (!perldb) { |
84902520 |
1553 | perldb = PERLDB_ALL; |
a0d0e21e |
1554 | init_debugger(); |
1555 | } |
79072805 |
1556 | return s; |
1557 | case 'D': |
1558 | #ifdef DEBUGGING |
bbce6d69 |
1559 | forbid_setid("-D"); |
79072805 |
1560 | if (isALPHA(s[1])) { |
8990e307 |
1561 | static char debopts[] = "psltocPmfrxuLHXD"; |
79072805 |
1562 | char *d; |
1563 | |
93a17b20 |
1564 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
79072805 |
1565 | debug |= 1 << (d - debopts); |
1566 | } |
1567 | else { |
1568 | debug = atoi(s+1); |
1569 | for (s++; isDIGIT(*s); s++) ; |
1570 | } |
8990e307 |
1571 | debug |= 0x80000000; |
79072805 |
1572 | #else |
1573 | warn("Recompile perl with -DDEBUGGING to use -D switch\n"); |
a0d0e21e |
1574 | for (s++; isALNUM(*s); s++) ; |
79072805 |
1575 | #endif |
1576 | /*SUPPRESS 530*/ |
1577 | return s; |
4633a7c4 |
1578 | case 'h': |
1579 | usage(origargv[0]); |
6ad3d225 |
1580 | PerlProc_exit(0); |
79072805 |
1581 | case 'i': |
1582 | if (inplace) |
1583 | Safefree(inplace); |
a0d0e21e |
1584 | inplace = savepv(s+1); |
79072805 |
1585 | /*SUPPRESS 530*/ |
1586 | for (s = inplace; *s && !isSPACE(*s); s++) ; |
7b8d334a |
1587 | if (*s) { |
fb73857a |
1588 | *s++ = '\0'; |
7b8d334a |
1589 | if (*s == '-') /* Additional switches on #! line. */ |
1590 | s++; |
1591 | } |
fb73857a |
1592 | return s; |
1593 | case 'I': /* -I handled both here and in parse_perl() */ |
bbce6d69 |
1594 | forbid_setid("-I"); |
fb73857a |
1595 | ++s; |
1596 | while (*s && isSPACE(*s)) |
1597 | ++s; |
1598 | if (*s) { |
774d564b |
1599 | char *e, *p; |
748a9306 |
1600 | for (e = s; *e && !isSPACE(*e); e++) ; |
774d564b |
1601 | p = savepvn(s, e-s); |
1602 | incpush(p, TRUE); |
1603 | Safefree(p); |
fb73857a |
1604 | s = e; |
79072805 |
1605 | } |
1606 | else |
463ee0b2 |
1607 | croak("No space allowed after -I"); |
fb73857a |
1608 | return s; |
79072805 |
1609 | case 'l': |
1610 | minus_l = TRUE; |
1611 | s++; |
a0d0e21e |
1612 | if (ors) |
1613 | Safefree(ors); |
79072805 |
1614 | if (isDIGIT(*s)) { |
a0d0e21e |
1615 | ors = savepv("\n"); |
79072805 |
1616 | orslen = 1; |
1617 | *ors = scan_oct(s, 3 + (*s == '0'), &numlen); |
1618 | s += numlen; |
1619 | } |
1620 | else { |
a863c7d1 |
1621 | dTHR; |
c07a80fd |
1622 | if (RsPARA(nrs)) { |
6e72f9df |
1623 | ors = "\n\n"; |
c07a80fd |
1624 | orslen = 2; |
1625 | } |
1626 | else |
1627 | ors = SvPV(nrs, orslen); |
6e72f9df |
1628 | ors = savepvn(ors, orslen); |
79072805 |
1629 | } |
1630 | return s; |
1a30305b |
1631 | case 'M': |
bbce6d69 |
1632 | forbid_setid("-M"); /* XXX ? */ |
1a30305b |
1633 | /* FALL THROUGH */ |
1634 | case 'm': |
bbce6d69 |
1635 | forbid_setid("-m"); /* XXX ? */ |
1a30305b |
1636 | if (*++s) { |
a5f75d66 |
1637 | char *start; |
11343788 |
1638 | SV *sv; |
a5f75d66 |
1639 | char *use = "use "; |
1640 | /* -M-foo == 'no foo' */ |
1641 | if (*s == '-') { use = "no "; ++s; } |
11343788 |
1642 | sv = newSVpv(use,0); |
a5f75d66 |
1643 | start = s; |
1a30305b |
1644 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd |
1645 | while(isALNUM(*s) || *s==':') ++s; |
1646 | if (*s != '=') { |
11343788 |
1647 | sv_catpv(sv, start); |
c07a80fd |
1648 | if (*(start-1) == 'm') { |
1649 | if (*s != '\0') |
1650 | croak("Can't use '%c' after -mname", *s); |
11343788 |
1651 | sv_catpv( sv, " ()"); |
c07a80fd |
1652 | } |
1653 | } else { |
11343788 |
1654 | sv_catpvn(sv, start, s-start); |
1655 | sv_catpv(sv, " split(/,/,q{"); |
1656 | sv_catpv(sv, ++s); |
1657 | sv_catpv(sv, "})"); |
c07a80fd |
1658 | } |
1a30305b |
1659 | s += strlen(s); |
c07a80fd |
1660 | if (preambleav == NULL) |
1661 | preambleav = newAV(); |
11343788 |
1662 | av_push(preambleav, sv); |
1a30305b |
1663 | } |
1664 | else |
1665 | croak("No space allowed after -%c", *(s-1)); |
1666 | return s; |
79072805 |
1667 | case 'n': |
1668 | minus_n = TRUE; |
1669 | s++; |
1670 | return s; |
1671 | case 'p': |
1672 | minus_p = TRUE; |
1673 | s++; |
1674 | return s; |
1675 | case 's': |
bbce6d69 |
1676 | forbid_setid("-s"); |
79072805 |
1677 | doswitches = TRUE; |
1678 | s++; |
1679 | return s; |
463ee0b2 |
1680 | case 'T': |
f86702cc |
1681 | if (!tainting) |
9607fc9c |
1682 | croak("Too late for \"-T\" option"); |
463ee0b2 |
1683 | s++; |
1684 | return s; |
79072805 |
1685 | case 'u': |
1686 | do_undump = TRUE; |
1687 | s++; |
1688 | return s; |
1689 | case 'U': |
1690 | unsafe = TRUE; |
1691 | s++; |
1692 | return s; |
1693 | case 'v': |
a5f75d66 |
1694 | #if defined(SUBVERSION) && SUBVERSION > 0 |
fb73857a |
1695 | printf("\nThis is perl, version 5.%03d_%02d built for %s", |
1696 | PATCHLEVEL, SUBVERSION, ARCHNAME); |
a5f75d66 |
1697 | #else |
fb73857a |
1698 | printf("\nThis is perl, version %s built for %s", |
1699 | patchlevel, ARCHNAME); |
1700 | #endif |
1701 | #if defined(LOCAL_PATCH_COUNT) |
1702 | if (LOCAL_PATCH_COUNT > 0) |
1703 | printf("\n(with %d registered patch%s, see perl -V for more detail)", |
1704 | LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : ""); |
a5f75d66 |
1705 | #endif |
1a30305b |
1706 | |
a411490c |
1707 | printf("\n\nCopyright 1987-1998, Larry Wall\n"); |
79072805 |
1708 | #ifdef MSDOS |
fb73857a |
1709 | printf("\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); |
55497cff |
1710 | #endif |
1711 | #ifdef DJGPP |
1712 | printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n"); |
9731c6ca |
1713 | printf("djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1998\n"); |
4633a7c4 |
1714 | #endif |
79072805 |
1715 | #ifdef OS2 |
5dd60ef7 |
1716 | printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" |
a411490c |
1717 | "Version 5 port Copyright (c) 1994-1998, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 |
1718 | #endif |
79072805 |
1719 | #ifdef atarist |
760ac839 |
1720 | printf("atariST series port, ++jrb bammi@cadence.com\n"); |
79072805 |
1721 | #endif |
760ac839 |
1722 | printf("\n\ |
79072805 |
1723 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
95103687 |
1724 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\ |
1725 | Complete documentation for Perl, including FAQ lists, should be found on\n\ |
1726 | this system using `man perl' or `perldoc perl'. If you have access to the\n\ |
1727 | Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n"); |
6ad3d225 |
1728 | PerlProc_exit(0); |
79072805 |
1729 | case 'w': |
1730 | dowarn = TRUE; |
1731 | s++; |
1732 | return s; |
a0d0e21e |
1733 | case '*': |
79072805 |
1734 | case ' ': |
1735 | if (s[1] == '-') /* Additional switches on #! line. */ |
1736 | return s+2; |
1737 | break; |
a0d0e21e |
1738 | case '-': |
79072805 |
1739 | case 0: |
a868473f |
1740 | #ifdef WIN32 |
1741 | case '\r': |
1742 | #endif |
79072805 |
1743 | case '\n': |
1744 | case '\t': |
1745 | break; |
aa689395 |
1746 | #ifdef ALTERNATE_SHEBANG |
1747 | case 'S': /* OS/2 needs -S on "extproc" line. */ |
1748 | break; |
1749 | #endif |
a0d0e21e |
1750 | case 'P': |
1751 | if (preprocess) |
1752 | return s+1; |
1753 | /* FALL THROUGH */ |
79072805 |
1754 | default: |
a0d0e21e |
1755 | croak("Can't emulate -%.1s on #! line",s); |
79072805 |
1756 | } |
1757 | return Nullch; |
1758 | } |
1759 | |
1760 | /* compliments of Tom Christiansen */ |
1761 | |
1762 | /* unexec() can be found in the Gnu emacs distribution */ |
ee580363 |
1763 | /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */ |
79072805 |
1764 | |
1765 | void |
8ac85365 |
1766 | my_unexec(void) |
79072805 |
1767 | { |
1768 | #ifdef UNEXEC |
46fc3d4c |
1769 | SV* prog; |
1770 | SV* file; |
ee580363 |
1771 | int status = 1; |
79072805 |
1772 | extern int etext; |
1773 | |
ee580363 |
1774 | prog = newSVpv(BIN_EXP, 0); |
46fc3d4c |
1775 | sv_catpv(prog, "/perl"); |
ee580363 |
1776 | file = newSVpv(origfilename, 0); |
46fc3d4c |
1777 | sv_catpv(file, ".perldump"); |
79072805 |
1778 | |
ee580363 |
1779 | unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0); |
1780 | /* unexec prints msg to stderr in case of failure */ |
6ad3d225 |
1781 | PerlProc_exit(status); |
79072805 |
1782 | #else |
a5f75d66 |
1783 | # ifdef VMS |
1784 | # include <lib$routines.h> |
1785 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ |
aa689395 |
1786 | # else |
79072805 |
1787 | ABORT(); /* for use with undump */ |
aa689395 |
1788 | # endif |
a5f75d66 |
1789 | #endif |
79072805 |
1790 | } |
1791 | |
76e3520e |
1792 | STATIC void |
8ac85365 |
1793 | init_main_stash(void) |
79072805 |
1794 | { |
11343788 |
1795 | dTHR; |
463ee0b2 |
1796 | GV *gv; |
6e72f9df |
1797 | |
1798 | /* Note that strtab is a rather special HV. Assumptions are made |
1799 | about not iterating on it, and not adding tie magic to it. |
1800 | It is properly deallocated in perl_destruct() */ |
1801 | strtab = newHV(); |
1802 | HvSHAREKEYS_off(strtab); /* mandatory */ |
1803 | Newz(506,((XPVHV*)SvANY(strtab))->xhv_array, |
1804 | sizeof(HE*) * (((XPVHV*)SvANY(strtab))->xhv_max + 1), char); |
1805 | |
463ee0b2 |
1806 | curstash = defstash = newHV(); |
79072805 |
1807 | curstname = newSVpv("main",4); |
adbc6bb1 |
1808 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
1809 | SvREFCNT_dec(GvHV(gv)); |
1810 | GvHV(gv) = (HV*)SvREFCNT_inc(defstash); |
463ee0b2 |
1811 | SvREADONLY_on(gv); |
a0d0e21e |
1812 | HvNAME(defstash) = savepv("main"); |
85e6fe83 |
1813 | incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); |
a5f75d66 |
1814 | GvMULTI_on(incgv); |
a0d0e21e |
1815 | defgv = gv_fetchpv("_",TRUE, SVt_PVAV); |
12f917ad |
1816 | errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); |
1817 | GvMULTI_on(errgv); |
84902520 |
1818 | (void)form("%240s",""); /* Preallocate temp - for immediate signals. */ |
38a03e6e |
1819 | sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */ |
1820 | sv_setpvn(ERRSV, "", 0); |
8990e307 |
1821 | curstash = defstash; |
1822 | compiling.cop_stash = defstash; |
adbc6bb1 |
1823 | debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); |
49dc05e3 |
1824 | globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV)); |
4633a7c4 |
1825 | /* We must init $/ before switches are processed. */ |
1826 | sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1); |
79072805 |
1827 | } |
1828 | |
76e3520e |
1829 | STATIC void |
01f988be |
1830 | open_script(char *scriptname, bool dosearch, SV *sv, int *fdscript) |
79072805 |
1831 | { |
0f15f207 |
1832 | dTHR; |
79072805 |
1833 | register char *s; |
2a92aaa0 |
1834 | |
491527d0 |
1835 | scriptname = find_script(scriptname, dosearch, NULL, 0); |
79072805 |
1836 | |
96436eeb |
1837 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { |
1838 | char *s = scriptname + 8; |
01f988be |
1839 | *fdscript = atoi(s); |
96436eeb |
1840 | while (isDIGIT(*s)) |
1841 | s++; |
1842 | if (*s) |
1843 | scriptname = s + 1; |
1844 | } |
1845 | else |
01f988be |
1846 | *fdscript = -1; |
afe37c7d |
1847 | origfilename = savepv(e_script ? "-e" : scriptname); |
79072805 |
1848 | curcop->cop_filegv = gv_fetchfile(origfilename); |
1849 | if (strEQ(origfilename,"-")) |
1850 | scriptname = ""; |
01f988be |
1851 | if (*fdscript >= 0) { |
1852 | rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE); |
96436eeb |
1853 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
7aa04957 |
1854 | if (rsfp) |
1855 | fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ |
96436eeb |
1856 | #endif |
1857 | } |
1858 | else if (preprocess) { |
46fc3d4c |
1859 | char *cpp_cfg = CPPSTDIN; |
1860 | SV *cpp = NEWSV(0,0); |
1861 | SV *cmd = NEWSV(0,0); |
1862 | |
1863 | if (strEQ(cpp_cfg, "cppstdin")) |
1864 | sv_catpvf(cpp, "%s/", BIN_EXP); |
1865 | sv_catpv(cpp, cpp_cfg); |
79072805 |
1866 | |
79072805 |
1867 | sv_catpv(sv,"-I"); |
fed7345c |
1868 | sv_catpv(sv,PRIVLIB_EXP); |
46fc3d4c |
1869 | |
79072805 |
1870 | #ifdef MSDOS |
46fc3d4c |
1871 | sv_setpvf(cmd, "\ |
79072805 |
1872 | sed %s -e \"/^[^#]/b\" \ |
1873 | -e \"/^#[ ]*include[ ]/b\" \ |
1874 | -e \"/^#[ ]*define[ ]/b\" \ |
1875 | -e \"/^#[ ]*if[ ]/b\" \ |
1876 | -e \"/^#[ ]*ifdef[ ]/b\" \ |
1877 | -e \"/^#[ ]*ifndef[ ]/b\" \ |
1878 | -e \"/^#[ ]*else/b\" \ |
1879 | -e \"/^#[ ]*elif[ ]/b\" \ |
1880 | -e \"/^#[ ]*undef[ ]/b\" \ |
1881 | -e \"/^#[ ]*endif/b\" \ |
1882 | -e \"s/^#.*//\" \ |
fc36a67e |
1883 | %s | %_ -C %_ %s", |
79072805 |
1884 | (doextract ? "-e \"1,/^#/d\n\"" : ""), |
1885 | #else |
46fc3d4c |
1886 | sv_setpvf(cmd, "\ |
79072805 |
1887 | %s %s -e '/^[^#]/b' \ |
1888 | -e '/^#[ ]*include[ ]/b' \ |
1889 | -e '/^#[ ]*define[ ]/b' \ |
1890 | -e '/^#[ ]*if[ ]/b' \ |
1891 | -e '/^#[ ]*ifdef[ ]/b' \ |
1892 | -e '/^#[ ]*ifndef[ ]/b' \ |
1893 | -e '/^#[ ]*else/b' \ |
1894 | -e '/^#[ ]*elif[ ]/b' \ |
1895 | -e '/^#[ ]*undef[ ]/b' \ |
1896 | -e '/^#[ ]*endif/b' \ |
1897 | -e 's/^[ ]*#.*//' \ |
fc36a67e |
1898 | %s | %_ -C %_ %s", |
79072805 |
1899 | #ifdef LOC_SED |
1900 | LOC_SED, |
1901 | #else |
1902 | "sed", |
1903 | #endif |
1904 | (doextract ? "-e '1,/^#/d\n'" : ""), |
1905 | #endif |
46fc3d4c |
1906 | scriptname, cpp, sv, CPPMINUS); |
79072805 |
1907 | doextract = FALSE; |
1908 | #ifdef IAMSUID /* actually, this is caught earlier */ |
1909 | if (euid != uid && !euid) { /* if running suidperl */ |
1910 | #ifdef HAS_SETEUID |
1911 | (void)seteuid(uid); /* musn't stay setuid root */ |
1912 | #else |
1913 | #ifdef HAS_SETREUID |
85e6fe83 |
1914 | (void)setreuid((Uid_t)-1, uid); |
1915 | #else |
1916 | #ifdef HAS_SETRESUID |
1917 | (void)setresuid((Uid_t)-1, uid, (Uid_t)-1); |
79072805 |
1918 | #else |
76e3520e |
1919 | PerlProc_setuid(uid); |
79072805 |
1920 | #endif |
1921 | #endif |
85e6fe83 |
1922 | #endif |
76e3520e |
1923 | if (PerlProc_geteuid() != uid) |
463ee0b2 |
1924 | croak("Can't do seteuid!\n"); |
79072805 |
1925 | } |
1926 | #endif /* IAMSUID */ |
6ad3d225 |
1927 | rsfp = PerlProc_popen(SvPVX(cmd), "r"); |
46fc3d4c |
1928 | SvREFCNT_dec(cmd); |
1929 | SvREFCNT_dec(cpp); |
79072805 |
1930 | } |
1931 | else if (!*scriptname) { |
bbce6d69 |
1932 | forbid_setid("program input from stdin"); |
760ac839 |
1933 | rsfp = PerlIO_stdin(); |
79072805 |
1934 | } |
96436eeb |
1935 | else { |
a868473f |
1936 | rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE); |
96436eeb |
1937 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
7aa04957 |
1938 | if (rsfp) |
1939 | fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */ |
96436eeb |
1940 | #endif |
1941 | } |
7aa04957 |
1942 | if (!rsfp) { |
13281fa4 |
1943 | #ifdef DOSUID |
a687059c |
1944 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
76e3520e |
1945 | if (euid && PerlLIO_stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 && |
13281fa4 |
1946 | statbuf.st_mode & (S_ISUID|S_ISGID)) { |
46fc3d4c |
1947 | /* try again */ |
6ad3d225 |
1948 | PerlProc_execv(form("%s/sperl%s", BIN_EXP, patchlevel), origargv); |
463ee0b2 |
1949 | croak("Can't do setuid\n"); |
13281fa4 |
1950 | } |
1951 | #endif |
1952 | #endif |
463ee0b2 |
1953 | croak("Can't open perl script \"%s\": %s\n", |
2304df62 |
1954 | SvPVX(GvSV(curcop->cop_filegv)), Strerror(errno)); |
13281fa4 |
1955 | } |
79072805 |
1956 | } |
8d063cd8 |
1957 | |
76e3520e |
1958 | STATIC void |
01f988be |
1959 | validate_suid(char *validarg, char *scriptname, int fdscript) |
79072805 |
1960 | { |
96436eeb |
1961 | int which; |
1962 | |
13281fa4 |
1963 | /* do we need to emulate setuid on scripts? */ |
1964 | |
1965 | /* This code is for those BSD systems that have setuid #! scripts disabled |
1966 | * in the kernel because of a security problem. Merely defining DOSUID |
1967 | * in perl will not fix that problem, but if you have disabled setuid |
1968 | * scripts in the kernel, this will attempt to emulate setuid and setgid |
1969 | * on scripts that have those now-otherwise-useless bits set. The setuid |
27e2fb84 |
1970 | * root version must be called suidperl or sperlN.NNN. If regular perl |
1971 | * discovers that it has opened a setuid script, it calls suidperl with |
1972 | * the same argv that it had. If suidperl finds that the script it has |
1973 | * just opened is NOT setuid root, it sets the effective uid back to the |
1974 | * uid. We don't just make perl setuid root because that loses the |
1975 | * effective uid we had before invoking perl, if it was different from the |
1976 | * uid. |
13281fa4 |
1977 | * |
1978 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must |
1979 | * be defined in suidperl only. suidperl must be setuid root. The |
1980 | * Configure script will set this up for you if you want it. |
1981 | */ |
a687059c |
1982 | |
13281fa4 |
1983 | #ifdef DOSUID |
ea0efc06 |
1984 | dTHR; |
6e72f9df |
1985 | char *s, *s2; |
a0d0e21e |
1986 | |
6ad3d225 |
1987 | if (PerlLIO_fstat(PerlIO_fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */ |
463ee0b2 |
1988 | croak("Can't stat script \"%s\"",origfilename); |
96436eeb |
1989 | if (fdscript < 0 && statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 |
1990 | I32 len; |
13281fa4 |
1991 | |
a687059c |
1992 | #ifdef IAMSUID |
fe14fcc3 |
1993 | #ifndef HAS_SETREUID |
a687059c |
1994 | /* On this access check to make sure the directories are readable, |
1995 | * there is actually a small window that the user could use to make |
1996 | * filename point to an accessible directory. So there is a faint |
1997 | * chance that someone could execute a setuid script down in a |
1998 | * non-accessible directory. I don't know what to do about that. |
1999 | * But I don't think it's too important. The manual lies when |
2000 | * it says access() is useful in setuid programs. |
2001 | */ |
6ad3d225 |
2002 | if (PerlLIO_access(SvPVX(GvSV(curcop->cop_filegv)),1)) /*double check*/ |
463ee0b2 |
2003 | croak("Permission denied"); |
a687059c |
2004 | #else |
2005 | /* If we can swap euid and uid, then we can determine access rights |
2006 | * with a simple stat of the file, and then compare device and |
2007 | * inode to make sure we did stat() on the same file we opened. |
2008 | * Then we just have to make sure he or she can execute it. |
2009 | */ |
2010 | { |
2011 | struct stat tmpstatbuf; |
2012 | |
85e6fe83 |
2013 | if ( |
2014 | #ifdef HAS_SETREUID |
2015 | setreuid(euid,uid) < 0 |
a0d0e21e |
2016 | #else |
2017 | # if HAS_SETRESUID |
85e6fe83 |
2018 | setresuid(euid,uid,(Uid_t)-1) < 0 |
a0d0e21e |
2019 | # endif |
85e6fe83 |
2020 | #endif |
76e3520e |
2021 | || PerlProc_getuid() != euid || PerlProc_geteuid() != uid) |
463ee0b2 |
2022 | croak("Can't swap uid and euid"); /* really paranoid */ |
76e3520e |
2023 | if (PerlLIO_stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0) |
463ee0b2 |
2024 | croak("Permission denied"); /* testing full pathname here */ |
a687059c |
2025 | if (tmpstatbuf.st_dev != statbuf.st_dev || |
2026 | tmpstatbuf.st_ino != statbuf.st_ino) { |
760ac839 |
2027 | (void)PerlIO_close(rsfp); |
6ad3d225 |
2028 | if (rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */ |
760ac839 |
2029 | PerlIO_printf(rsfp, |
ff0cee69 |
2030 | "User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\ |
2031 | (Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n", |
2032 | (long)uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino, |
2033 | (long)statbuf.st_dev, (long)statbuf.st_ino, |
463ee0b2 |
2034 | SvPVX(GvSV(curcop->cop_filegv)), |
ff0cee69 |
2035 | (long)statbuf.st_uid, (long)statbuf.st_gid); |
6ad3d225 |
2036 | (void)PerlProc_pclose(rsfp); |
a687059c |
2037 | } |
463ee0b2 |
2038 | croak("Permission denied\n"); |
a687059c |
2039 | } |
85e6fe83 |
2040 | if ( |
2041 | #ifdef HAS_SETREUID |
2042 | setreuid(uid,euid) < 0 |
a0d0e21e |
2043 | #else |
2044 | # if defined(HAS_SETRESUID) |
85e6fe83 |
2045 | setresuid(uid,euid,(Uid_t)-1) < 0 |
a0d0e21e |
2046 | # endif |
85e6fe83 |
2047 | #endif |
76e3520e |
2048 | || PerlProc_getuid() != uid || PerlProc_geteuid() != euid) |
463ee0b2 |
2049 | croak("Can't reswap uid and euid"); |
27e2fb84 |
2050 | if (!cando(S_IXUSR,FALSE,&statbuf)) /* can real uid exec? */ |
463ee0b2 |
2051 | croak("Permission denied\n"); |
a687059c |
2052 | } |
fe14fcc3 |
2053 | #endif /* HAS_SETREUID */ |
a687059c |
2054 | #endif /* IAMSUID */ |
2055 | |
27e2fb84 |
2056 | if (!S_ISREG(statbuf.st_mode)) |
463ee0b2 |
2057 | croak("Permission denied"); |
27e2fb84 |
2058 | if (statbuf.st_mode & S_IWOTH) |
463ee0b2 |
2059 | croak("Setuid/gid script is writable by world"); |
13281fa4 |
2060 | doswitches = FALSE; /* -s is insecure in suid */ |
79072805 |
2061 | curcop->cop_line++; |
760ac839 |
2062 | if (sv_gets(linestr, rsfp, 0) == Nullch || |
2063 | strnNE(SvPV(linestr,na),"#!",2) ) /* required even on Sys V */ |
463ee0b2 |
2064 | croak("No #! line"); |
760ac839 |
2065 | s = SvPV(linestr,na)+2; |
663a0e37 |
2066 | if (*s == ' ') s++; |
45d8adaa |
2067 | while (!isSPACE(*s)) s++; |
760ac839 |
2068 | for (s2 = s; (s2 > SvPV(linestr,na)+2 && |
6e72f9df |
2069 | (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ; |
2070 | if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ |
463ee0b2 |
2071 | croak("Not a perl script"); |
a687059c |
2072 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 |
2073 | /* |
2074 | * #! arg must be what we saw above. They can invoke it by |
2075 | * mentioning suidperl explicitly, but they may not add any strange |
2076 | * arguments beyond what #! says if they do invoke suidperl that way. |
2077 | */ |
2078 | len = strlen(validarg); |
2079 | if (strEQ(validarg," PHOOEY ") || |
45d8adaa |
2080 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
463ee0b2 |
2081 | croak("Args must match #! line"); |
a687059c |
2082 | |
2083 | #ifndef IAMSUID |
2084 | if (euid != uid && (statbuf.st_mode & S_ISUID) && |
2085 | euid == statbuf.st_uid) |
2086 | if (!do_undump) |
463ee0b2 |
2087 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c |
2088 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
2089 | #endif /* IAMSUID */ |
13281fa4 |
2090 | |
2091 | if (euid) { /* oops, we're not the setuid root perl */ |
760ac839 |
2092 | (void)PerlIO_close(rsfp); |
13281fa4 |
2093 | #ifndef IAMSUID |
46fc3d4c |
2094 | /* try again */ |
6ad3d225 |
2095 | PerlProc_execv(form("%s/sperl%s", BIN_EXP, patchlevel), origargv); |
13281fa4 |
2096 | #endif |
463ee0b2 |
2097 | croak("Can't do setuid\n"); |
13281fa4 |
2098 | } |
2099 | |
83025b21 |
2100 | if (statbuf.st_mode & S_ISGID && statbuf.st_gid != egid) { |
fe14fcc3 |
2101 | #ifdef HAS_SETEGID |
a687059c |
2102 | (void)setegid(statbuf.st_gid); |
2103 | #else |
fe14fcc3 |
2104 | #ifdef HAS_SETREGID |
85e6fe83 |
2105 | (void)setregid((Gid_t)-1,statbuf.st_gid); |
2106 | #else |
2107 | #ifdef HAS_SETRESGID |
2108 | (void)setresgid((Gid_t)-1,statbuf.st_gid,(Gid_t)-1); |
a687059c |
2109 | #else |
76e3520e |
2110 | PerlProc_setgid(statbuf.st_gid); |
a687059c |
2111 | #endif |
2112 | #endif |
85e6fe83 |
2113 | #endif |
76e3520e |
2114 | if (PerlProc_getegid() != statbuf.st_gid) |
463ee0b2 |
2115 | croak("Can't do setegid!\n"); |
83025b21 |
2116 | } |
a687059c |
2117 | if (statbuf.st_mode & S_ISUID) { |
2118 | if (statbuf.st_uid != euid) |
fe14fcc3 |
2119 | #ifdef HAS_SETEUID |
a687059c |
2120 | (void)seteuid(statbuf.st_uid); /* all that for this */ |
2121 | #else |
fe14fcc3 |
2122 | #ifdef HAS_SETREUID |
85e6fe83 |
2123 | (void)setreuid((Uid_t)-1,statbuf.st_uid); |
2124 | #else |
2125 | #ifdef HAS_SETRESUID |
2126 | (void)setresuid((Uid_t)-1,statbuf.st_uid,(Uid_t)-1); |
a687059c |
2127 | #else |
76e3520e |
2128 | PerlProc_setuid(statbuf.st_uid); |
a687059c |
2129 | #endif |
2130 | #endif |
85e6fe83 |
2131 | #endif |
76e3520e |
2132 | if (PerlProc_geteuid() != statbuf.st_uid) |
463ee0b2 |
2133 | croak("Can't do seteuid!\n"); |
a687059c |
2134 | } |
83025b21 |
2135 | else if (uid) { /* oops, mustn't run as root */ |
fe14fcc3 |
2136 | #ifdef HAS_SETEUID |
85e6fe83 |
2137 | (void)seteuid((Uid_t)uid); |
a687059c |
2138 | #else |
fe14fcc3 |
2139 | #ifdef HAS_SETREUID |
85e6fe83 |
2140 | (void)setreuid((Uid_t)-1,(Uid_t)uid); |
a687059c |
2141 | #else |
85e6fe83 |
2142 | #ifdef HAS_SETRESUID |
2143 | (void)setresuid((Uid_t)-1,(Uid_t)uid,(Uid_t)-1); |
2144 | #else |
76e3520e |
2145 | PerlProc_setuid((Uid_t)uid); |
85e6fe83 |
2146 | #endif |
a687059c |
2147 | #endif |
2148 | #endif |
76e3520e |
2149 | if (PerlProc_geteuid() != uid) |
463ee0b2 |
2150 | croak("Can't do seteuid!\n"); |
83025b21 |
2151 | } |
748a9306 |
2152 | init_ids(); |
27e2fb84 |
2153 | if (!cando(S_IXUSR,TRUE,&statbuf)) |
463ee0b2 |
2154 | croak("Permission denied\n"); /* they can't do this */ |
13281fa4 |
2155 | } |
2156 | #ifdef IAMSUID |
2157 | else if (preprocess) |
463ee0b2 |
2158 | croak("-P not allowed for setuid/setgid script\n"); |
96436eeb |
2159 | else if (fdscript >= 0) |
2160 | croak("fd script not allowed in suidperl\n"); |
13281fa4 |
2161 | else |
463ee0b2 |
2162 | croak("Script is not setuid/setgid in suidperl\n"); |
96436eeb |
2163 | |
2164 | /* We absolutely must clear out any saved ids here, so we */ |
2165 | /* exec the real perl, substituting fd script for scriptname. */ |
2166 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ |
760ac839 |
2167 | PerlIO_rewind(rsfp); |
6ad3d225 |
2168 | PerlLIO_lseek(PerlIO_fileno(rsfp),(Off_t)0,0); /* just in case rewind didn't */ |
96436eeb |
2169 | for (which = 1; origargv[which] && origargv[which] != scriptname; which++) ; |
2170 | if (!origargv[which]) |
2171 | croak("Permission denied"); |
46fc3d4c |
2172 | origargv[which] = savepv(form("/dev/fd/%d/%s", |
2173 | PerlIO_fileno(rsfp), origargv[which])); |
96436eeb |
2174 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
760ac839 |
2175 | fcntl(PerlIO_fileno(rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb |
2176 | #endif |
6ad3d225 |
2177 | PerlProc_execv(form("%s/perl%s", BIN_EXP, patchlevel), origargv); /* try again */ |
96436eeb |
2178 | croak("Can't do setuid\n"); |
13281fa4 |
2179 | #endif /* IAMSUID */ |
a687059c |
2180 | #else /* !DOSUID */ |
a687059c |
2181 | if (euid != uid || egid != gid) { /* (suidperl doesn't exist, in fact) */ |
2182 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW |
96827780 |
2183 | dTHR; |
6ad3d225 |
2184 | PerlLIO_fstat(PerlIO_fileno(rsfp),&statbuf); /* may be either wrapped or real suid */ |
a687059c |
2185 | if ((euid != uid && euid == statbuf.st_uid && statbuf.st_mode & S_ISUID) |
2186 | || |
2187 | (egid != gid && egid == statbuf.st_gid && statbuf.st_mode & S_ISGID) |
2188 | ) |
2189 | if (!do_undump) |
463ee0b2 |
2190 | croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c |
2191 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
2192 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ |
2193 | /* not set-id, must be wrapped */ |
a687059c |
2194 | } |
13281fa4 |
2195 | #endif /* DOSUID */ |
79072805 |
2196 | } |
13281fa4 |
2197 | |
76e3520e |
2198 | STATIC void |
8ac85365 |
2199 | find_beginning(void) |
79072805 |
2200 | { |
6e72f9df |
2201 | register char *s, *s2; |
33b78306 |
2202 | |
2203 | /* skip forward in input to the real script? */ |
2204 | |
bbce6d69 |
2205 | forbid_setid("-x"); |
33b78306 |
2206 | while (doextract) { |
79072805 |
2207 | if ((s = sv_gets(linestr, rsfp, 0)) == Nullch) |
463ee0b2 |
2208 | croak("No Perl script found in input\n"); |
6e72f9df |
2209 | if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) { |
760ac839 |
2210 | PerlIO_ungetc(rsfp, '\n'); /* to keep line count right */ |
33b78306 |
2211 | doextract = FALSE; |
6e72f9df |
2212 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
2213 | s2 = s; |
2214 | while (*s == ' ' || *s == '\t') s++; |
2215 | if (*s++ == '-') { |
2216 | while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--; |
2217 | if (strnEQ(s2-4,"perl",4)) |
2218 | /*SUPPRESS 530*/ |
2219 | while (s = moreswitches(s)) ; |
33b78306 |
2220 | } |
6ad3d225 |
2221 | if (cddir && PerlDir_chdir(cddir) < 0) |
463ee0b2 |
2222 | croak("Can't chdir to %s",cddir); |
83025b21 |
2223 | } |
2224 | } |
2225 | } |
2226 | |
afe37c7d |
2227 | |
76e3520e |
2228 | STATIC void |
8ac85365 |
2229 | init_ids(void) |
352d5a3a |
2230 | { |
76e3520e |
2231 | uid = (int)PerlProc_getuid(); |
2232 | euid = (int)PerlProc_geteuid(); |
2233 | gid = (int)PerlProc_getgid(); |
2234 | egid = (int)PerlProc_getegid(); |
748a9306 |
2235 | #ifdef VMS |
2236 | uid |= gid << 16; |
2237 | euid |= egid << 16; |
2238 | #endif |
4633a7c4 |
2239 | tainting |= (uid && (euid != uid || egid != gid)); |
748a9306 |
2240 | } |
79072805 |
2241 | |
76e3520e |
2242 | STATIC void |
8ac85365 |
2243 | forbid_setid(char *s) |
bbce6d69 |
2244 | { |
2245 | if (euid != uid) |
2246 | croak("No %s allowed while running setuid", s); |
2247 | if (egid != gid) |
2248 | croak("No %s allowed while running setgid", s); |
2249 | } |
2250 | |
76e3520e |
2251 | STATIC void |
8ac85365 |
2252 | init_debugger(void) |
748a9306 |
2253 | { |
11343788 |
2254 | dTHR; |
79072805 |
2255 | curstash = debstash; |
748a9306 |
2256 | dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); |
79072805 |
2257 | AvREAL_off(dbargs); |
a0d0e21e |
2258 | DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); |
2259 | DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); |
748a9306 |
2260 | DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); |
2261 | DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); |
c07a80fd |
2262 | sv_setiv(DBsingle, 0); |
748a9306 |
2263 | DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); |
c07a80fd |
2264 | sv_setiv(DBtrace, 0); |
748a9306 |
2265 | DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); |
c07a80fd |
2266 | sv_setiv(DBsignal, 0); |
79072805 |
2267 | curstash = defstash; |
352d5a3a |
2268 | } |
2269 | |
2ce36478 |
2270 | #ifndef STRESS_REALLOC |
2271 | #define REASONABLE(size) (size) |
2272 | #else |
2273 | #define REASONABLE(size) (1) /* unreasonable */ |
2274 | #endif |
2275 | |
11343788 |
2276 | void |
8ac85365 |
2277 | init_stacks(ARGSproto) |
79072805 |
2278 | { |
e336de0d |
2279 | /* start with 128-item stack and 8K cxstack */ |
2280 | curstackinfo = new_stackinfo(REASONABLE(128), |
2281 | REASONABLE(8192/sizeof(PERL_CONTEXT) - 1)); |
2282 | curstackinfo->si_type = SI_MAIN; |
2283 | curstack = curstackinfo->si_stack; |
5f05dabc |
2284 | mainstack = curstack; /* remember in case we switch stacks */ |
79072805 |
2285 | |
6e72f9df |
2286 | stack_base = AvARRAY(curstack); |
79072805 |
2287 | stack_sp = stack_base; |
e336de0d |
2288 | stack_max = stack_base + AvMAX(curstack); |
8990e307 |
2289 | |
2ce36478 |
2290 | New(50,tmps_stack,REASONABLE(128),SV*); |
6d4ff0d2 |
2291 | tmps_floor = -1; |
8990e307 |
2292 | tmps_ix = -1; |
2ce36478 |
2293 | tmps_max = REASONABLE(128); |
8990e307 |
2294 | |
5f05dabc |
2295 | /* |
2296 | * The following stacks almost certainly should be per-interpreter, |
2297 | * but for now they're not. XXX |
2298 | */ |
2299 | |
6e72f9df |
2300 | if (markstack) { |
2301 | markstack_ptr = markstack; |
2302 | } else { |
2ce36478 |
2303 | New(54,markstack,REASONABLE(32),I32); |
6e72f9df |
2304 | markstack_ptr = markstack; |
2ce36478 |
2305 | markstack_max = markstack + REASONABLE(32); |
6e72f9df |
2306 | } |
79072805 |
2307 | |
e336de0d |
2308 | SET_MARKBASE; |
2309 | |
6e72f9df |
2310 | if (scopestack) { |
2311 | scopestack_ix = 0; |
2312 | } else { |
2ce36478 |
2313 | New(54,scopestack,REASONABLE(32),I32); |
6e72f9df |
2314 | scopestack_ix = 0; |
2ce36478 |
2315 | scopestack_max = REASONABLE(32); |
6e72f9df |
2316 | } |
79072805 |
2317 | |
6e72f9df |
2318 | if (savestack) { |
2319 | savestack_ix = 0; |
2320 | } else { |
2ce36478 |
2321 | New(54,savestack,REASONABLE(128),ANY); |
6e72f9df |
2322 | savestack_ix = 0; |
2ce36478 |
2323 | savestack_max = REASONABLE(128); |
6e72f9df |
2324 | } |
79072805 |
2325 | |
6e72f9df |
2326 | if (retstack) { |
2327 | retstack_ix = 0; |
2328 | } else { |
2ce36478 |
2329 | New(54,retstack,REASONABLE(16),OP*); |
6e72f9df |
2330 | retstack_ix = 0; |
2ce36478 |
2331 | retstack_max = REASONABLE(16); |
5f05dabc |
2332 | } |
378cc40b |
2333 | } |
33b78306 |
2334 | |
2ce36478 |
2335 | #undef REASONABLE |
2336 | |
76e3520e |
2337 | STATIC void |
8ac85365 |
2338 | nuke_stacks(void) |
6e72f9df |
2339 | { |
e858de61 |
2340 | dTHR; |
e336de0d |
2341 | while (curstackinfo->si_next) |
2342 | curstackinfo = curstackinfo->si_next; |
2343 | while (curstackinfo) { |
2344 | PERL_SI *p = curstackinfo->si_prev; |
bac4b2ad |
2345 | /* curstackinfo->si_stack got nuked by sv_free_arenas() */ |
e336de0d |
2346 | Safefree(curstackinfo->si_cxstack); |
2347 | Safefree(curstackinfo); |
2348 | curstackinfo = p; |
2349 | } |
6e72f9df |
2350 | Safefree(tmps_stack); |
5f05dabc |
2351 | DEBUG( { |
2352 | Safefree(debname); |
2353 | Safefree(debdelim); |
2354 | } ) |
378cc40b |
2355 | } |
33b78306 |
2356 | |
76e3520e |
2357 | #ifndef PERL_OBJECT |
760ac839 |
2358 | static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
76e3520e |
2359 | #endif |
7aa04957 |
2360 | |
76e3520e |
2361 | STATIC void |
8ac85365 |
2362 | init_lexer(void) |
8990e307 |
2363 | { |
76e3520e |
2364 | #ifdef PERL_OBJECT |
2365 | PerlIO *tmpfp; |
2366 | #endif |
a0d0e21e |
2367 | tmpfp = rsfp; |
90248788 |
2368 | rsfp = Nullfp; |
8990e307 |
2369 | lex_start(linestr); |
2370 | rsfp = tmpfp; |
2371 | subname = newSVpv("main",4); |
2372 | } |
2373 | |
76e3520e |
2374 | STATIC void |
8ac85365 |
2375 | init_predump_symbols(void) |
45d8adaa |
2376 | { |
11343788 |
2377 | dTHR; |
93a17b20 |
2378 | GV *tmpgv; |
a0d0e21e |
2379 | GV *othergv; |
79072805 |
2380 | |
e1c148c2 |
2381 | sv_setpvn(perl_get_sv("\"", TRUE), " ", 1); |
85e6fe83 |
2382 | stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
a5f75d66 |
2383 | GvMULTI_on(stdingv); |
760ac839 |
2384 | IoIFP(GvIOp(stdingv)) = PerlIO_stdin(); |
adbc6bb1 |
2385 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 |
2386 | GvMULTI_on(tmpgv); |
a0d0e21e |
2387 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(stdingv)); |
79072805 |
2388 | |
85e6fe83 |
2389 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 |
2390 | GvMULTI_on(tmpgv); |
760ac839 |
2391 | IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout(); |
4633a7c4 |
2392 | setdefout(tmpgv); |
adbc6bb1 |
2393 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 |
2394 | GvMULTI_on(tmpgv); |
a0d0e21e |
2395 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(defoutgv)); |
79072805 |
2396 | |
a0d0e21e |
2397 | othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
a5f75d66 |
2398 | GvMULTI_on(othergv); |
760ac839 |
2399 | IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr(); |
adbc6bb1 |
2400 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 |
2401 | GvMULTI_on(tmpgv); |
a0d0e21e |
2402 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv)); |
79072805 |
2403 | |
2404 | statname = NEWSV(66,0); /* last filename we did stat on */ |
ab821d7f |
2405 | |
6e72f9df |
2406 | if (!osname) |
2407 | osname = savepv(OSNAME); |
79072805 |
2408 | } |
33b78306 |
2409 | |
76e3520e |
2410 | STATIC void |
8ac85365 |
2411 | init_postdump_symbols(register int argc, register char **argv, register char **env) |
33b78306 |
2412 | { |
a863c7d1 |
2413 | dTHR; |
79072805 |
2414 | char *s; |
2415 | SV *sv; |
2416 | GV* tmpgv; |
fe14fcc3 |
2417 | |
79072805 |
2418 | argc--,argv++; /* skip name of script */ |
2419 | if (doswitches) { |
2420 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
2421 | if (!argv[0][1]) |
2422 | break; |
2423 | if (argv[0][1] == '-') { |
2424 | argc--,argv++; |
2425 | break; |
2426 | } |
93a17b20 |
2427 | if (s = strchr(argv[0], '=')) { |
79072805 |
2428 | *s++ = '\0'; |
85e6fe83 |
2429 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 |
2430 | } |
2431 | else |
85e6fe83 |
2432 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 |
2433 | } |
79072805 |
2434 | } |
2435 | toptarget = NEWSV(0,0); |
2436 | sv_upgrade(toptarget, SVt_PVFM); |
2437 | sv_setpvn(toptarget, "", 0); |
748a9306 |
2438 | bodytarget = NEWSV(0,0); |
79072805 |
2439 | sv_upgrade(bodytarget, SVt_PVFM); |
2440 | sv_setpvn(bodytarget, "", 0); |
2441 | formtarget = bodytarget; |
2442 | |
bbce6d69 |
2443 | TAINT; |
85e6fe83 |
2444 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
79072805 |
2445 | sv_setpv(GvSV(tmpgv),origfilename); |
2446 | magicname("0", "0", 1); |
2447 | } |
85e6fe83 |
2448 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
79072805 |
2449 | sv_setpv(GvSV(tmpgv),origargv[0]); |
85e6fe83 |
2450 | if (argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { |
a5f75d66 |
2451 | GvMULTI_on(argvgv); |
79072805 |
2452 | (void)gv_AVadd(argvgv); |
2453 | av_clear(GvAVn(argvgv)); |
2454 | for (; argc > 0; argc--,argv++) { |
a0d0e21e |
2455 | av_push(GvAVn(argvgv),newSVpv(argv[0],0)); |
79072805 |
2456 | } |
2457 | } |
85e6fe83 |
2458 | if (envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 |
2459 | HV *hv; |
a5f75d66 |
2460 | GvMULTI_on(envgv); |
79072805 |
2461 | hv = GvHVn(envgv); |
5aabfad6 |
2462 | hv_magic(hv, envgv, 'E'); |
a0d0e21e |
2463 | #ifndef VMS /* VMS doesn't have environ array */ |
4633a7c4 |
2464 | /* Note that if the supplied env parameter is actually a copy |
2465 | of the global environ then it may now point to free'd memory |
2466 | if the environment has been modified since. To avoid this |
2467 | problem we treat env==NULL as meaning 'use the default' |
2468 | */ |
2469 | if (!env) |
2470 | env = environ; |
5aabfad6 |
2471 | if (env != environ) |
79072805 |
2472 | environ[0] = Nullch; |
2473 | for (; *env; env++) { |
93a17b20 |
2474 | if (!(s = strchr(*env,'='))) |
79072805 |
2475 | continue; |
2476 | *s++ = '\0'; |
39e571d4 |
2477 | #if defined(WIN32) || defined(MSDOS) |
137443ea |
2478 | (void)strupr(*env); |
2479 | #endif |
79072805 |
2480 | sv = newSVpv(s--,0); |
2481 | (void)hv_store(hv, *env, s - *env, sv, 0); |
2482 | *s = '='; |
3e3baf6d |
2483 | #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV) |
2484 | /* Sins of the RTL. See note in my_setenv(). */ |
76e3520e |
2485 | (void)PerlEnv_putenv(savepv(*env)); |
3e3baf6d |
2486 | #endif |
fe14fcc3 |
2487 | } |
4550b24a |
2488 | #endif |
2489 | #ifdef DYNAMIC_ENV_FETCH |
2490 | HvNAME(hv) = savepv(ENV_HV_NAME); |
2491 | #endif |
79072805 |
2492 | } |
bbce6d69 |
2493 | TAINT_NOT; |
85e6fe83 |
2494 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
1e422769 |
2495 | sv_setiv(GvSV(tmpgv), (IV)getpid()); |
33b78306 |
2496 | } |
34de22dd |
2497 | |
76e3520e |
2498 | STATIC void |
8ac85365 |
2499 | init_perllib(void) |
34de22dd |
2500 | { |
85e6fe83 |
2501 | char *s; |
2502 | if (!tainting) { |
552a7a9b |
2503 | #ifndef VMS |
76e3520e |
2504 | s = PerlEnv_getenv("PERL5LIB"); |
85e6fe83 |
2505 | if (s) |
774d564b |
2506 | incpush(s, TRUE); |
85e6fe83 |
2507 | else |
76e3520e |
2508 | incpush(PerlEnv_getenv("PERLLIB"), FALSE); |
552a7a9b |
2509 | #else /* VMS */ |
2510 | /* Treat PERL5?LIB as a possible search list logical name -- the |
2511 | * "natural" VMS idiom for a Unix path string. We allow each |
2512 | * element to be a set of |-separated directories for compatibility. |
2513 | */ |
2514 | char buf[256]; |
2515 | int idx = 0; |
2516 | if (my_trnlnm("PERL5LIB",buf,0)) |
774d564b |
2517 | do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx)); |
552a7a9b |
2518 | else |
774d564b |
2519 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE); |
552a7a9b |
2520 | #endif /* VMS */ |
85e6fe83 |
2521 | } |
34de22dd |
2522 | |
c90c0ff4 |
2523 | /* Use the ~-expanded versions of APPLLIB (undocumented), |
dfe9444c |
2524 | ARCHLIB PRIVLIB SITEARCH and SITELIB |
df5cef82 |
2525 | */ |
4633a7c4 |
2526 | #ifdef APPLLIB_EXP |
43051805 |
2527 | incpush(APPLLIB_EXP, TRUE); |
16d20bd9 |
2528 | #endif |
4633a7c4 |
2529 | |
fed7345c |
2530 | #ifdef ARCHLIB_EXP |
774d564b |
2531 | incpush(ARCHLIB_EXP, FALSE); |
a0d0e21e |
2532 | #endif |
fed7345c |
2533 | #ifndef PRIVLIB_EXP |
2534 | #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" |
34de22dd |
2535 | #endif |
00dc2f4f |
2536 | #if defined(WIN32) |
2537 | incpush(PRIVLIB_EXP, TRUE); |
2538 | #else |
774d564b |
2539 | incpush(PRIVLIB_EXP, FALSE); |
00dc2f4f |
2540 | #endif |
4633a7c4 |
2541 | |
2542 | #ifdef SITEARCH_EXP |
774d564b |
2543 | incpush(SITEARCH_EXP, FALSE); |
4633a7c4 |
2544 | #endif |
2545 | #ifdef SITELIB_EXP |
00dc2f4f |
2546 | #if defined(WIN32) |
2547 | incpush(SITELIB_EXP, TRUE); |
2548 | #else |
774d564b |
2549 | incpush(SITELIB_EXP, FALSE); |
4633a7c4 |
2550 | #endif |
00dc2f4f |
2551 | #endif |
4633a7c4 |
2552 | if (!tainting) |
774d564b |
2553 | incpush(".", FALSE); |
2554 | } |
2555 | |
2556 | #if defined(DOSISH) |
2557 | # define PERLLIB_SEP ';' |
2558 | #else |
2559 | # if defined(VMS) |
2560 | # define PERLLIB_SEP '|' |
2561 | # else |
2562 | # define PERLLIB_SEP ':' |
2563 | # endif |
2564 | #endif |
2565 | #ifndef PERLLIB_MANGLE |
2566 | # define PERLLIB_MANGLE(s,n) (s) |
2567 | #endif |
2568 | |
76e3520e |
2569 | STATIC void |
8ac85365 |
2570 | incpush(char *p, int addsubdirs) |
774d564b |
2571 | { |
2572 | SV *subdir = Nullsv; |
774d564b |
2573 | |
2574 | if (!p) |
2575 | return; |
2576 | |
2577 | if (addsubdirs) { |
8c52afec |
2578 | subdir = NEWSV(55,0); |
774d564b |
2579 | if (!archpat_auto) { |
2580 | STRLEN len = (sizeof(ARCHNAME) + strlen(patchlevel) |
2581 | + sizeof("//auto")); |
2582 | New(55, archpat_auto, len, char); |
2583 | sprintf(archpat_auto, "/%s/%s/auto", ARCHNAME, patchlevel); |
aa689395 |
2584 | #ifdef VMS |
2585 | for (len = sizeof(ARCHNAME) + 2; |
2586 | archpat_auto[len] != '\0' && archpat_auto[len] != '/'; len++) |
2587 | if (archpat_auto[len] == '.') archpat_auto[len] = '_'; |
2588 | #endif |
774d564b |
2589 | } |
2590 | } |
2591 | |
2592 | /* Break at all separators */ |
2593 | while (p && *p) { |
8c52afec |
2594 | SV *libdir = NEWSV(55,0); |
774d564b |
2595 | char *s; |
2596 | |
2597 | /* skip any consecutive separators */ |
2598 | while ( *p == PERLLIB_SEP ) { |
2599 | /* Uncomment the next line for PATH semantics */ |
2600 | /* av_push(GvAVn(incgv), newSVpv(".", 1)); */ |
2601 | p++; |
2602 | } |
2603 | |
2604 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { |
2605 | sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)), |
2606 | (STRLEN)(s - p)); |
2607 | p = s + 1; |
2608 | } |
2609 | else { |
2610 | sv_setpv(libdir, PERLLIB_MANGLE(p, 0)); |
2611 | p = Nullch; /* break out */ |
2612 | } |
2613 | |
2614 | /* |
2615 | * BEFORE pushing libdir onto @INC we may first push version- and |
2616 | * archname-specific sub-directories. |
2617 | */ |
2618 | if (addsubdirs) { |
2619 | struct stat tmpstatbuf; |
aa689395 |
2620 | #ifdef VMS |
2621 | char *unix; |
2622 | STRLEN len; |
774d564b |
2623 | |
aa689395 |
2624 | if ((unix = tounixspec_ts(SvPV(libdir,na),Nullch)) != Nullch) { |
2625 | len = strlen(unix); |
2626 | while (unix[len-1] == '/') len--; /* Cosmetic */ |
2627 | sv_usepvn(libdir,unix,len); |
2628 | } |
2629 | else |
2630 | PerlIO_printf(PerlIO_stderr(), |
2631 | "Failed to unixify @INC element \"%s\"\n", |
2632 | SvPV(libdir,na)); |
2633 | #endif |
4fdae800 |
2634 | /* .../archname/version if -d .../archname/version/auto */ |
774d564b |
2635 | sv_setsv(subdir, libdir); |
2636 | sv_catpv(subdir, archpat_auto); |
76e3520e |
2637 | if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 && |
774d564b |
2638 | S_ISDIR(tmpstatbuf.st_mode)) |
2639 | av_push(GvAVn(incgv), |
2640 | newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto")); |
2641 | |
4fdae800 |
2642 | /* .../archname if -d .../archname/auto */ |
774d564b |
2643 | sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME), |
2644 | strlen(patchlevel) + 1, "", 0); |
76e3520e |
2645 | if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 && |
774d564b |
2646 | S_ISDIR(tmpstatbuf.st_mode)) |
2647 | av_push(GvAVn(incgv), |
2648 | newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto")); |
2649 | } |
2650 | |
2651 | /* finally push this lib directory on the end of @INC */ |
2652 | av_push(GvAVn(incgv), libdir); |
2653 | } |
2654 | |
2655 | SvREFCNT_dec(subdir); |
34de22dd |
2656 | } |
93a17b20 |
2657 | |
199100c8 |
2658 | #ifdef USE_THREADS |
76e3520e |
2659 | STATIC struct perl_thread * |
199100c8 |
2660 | init_main_thread() |
2661 | { |
52e1cb5e |
2662 | struct perl_thread *thr; |
199100c8 |
2663 | XPV *xpv; |
2664 | |
52e1cb5e |
2665 | Newz(53, thr, 1, struct perl_thread); |
199100c8 |
2666 | curcop = &compiling; |
2667 | thr->cvcache = newHV(); |
54b9620d |
2668 | thr->threadsv = newAV(); |
940cb80d |
2669 | /* thr->threadsvp is set when find_threadsv is called */ |
199100c8 |
2670 | thr->specific = newAV(); |
38a03e6e |
2671 | thr->errhv = newHV(); |
199100c8 |
2672 | thr->flags = THRf_R_JOINABLE; |
2673 | MUTEX_INIT(&thr->mutex); |
2674 | /* Handcraft thrsv similarly to mess_sv */ |
2675 | New(53, thrsv, 1, SV); |
2676 | Newz(53, xpv, 1, XPV); |
2677 | SvFLAGS(thrsv) = SVt_PV; |
2678 | SvANY(thrsv) = (void*)xpv; |
2679 | SvREFCNT(thrsv) = 1 << 30; /* practically infinite */ |
2680 | SvPVX(thrsv) = (char*)thr; |
2681 | SvCUR_set(thrsv, sizeof(thr)); |
2682 | SvLEN_set(thrsv, sizeof(thr)); |
2683 | *SvEND(thrsv) = '\0'; /* in the trailing_nul field */ |
2684 | thr->oursv = thrsv; |
199100c8 |
2685 | chopset = " \n-"; |
2686 | |
2687 | MUTEX_LOCK(&threads_mutex); |
2688 | nthreads++; |
2689 | thr->tid = 0; |
2690 | thr->next = thr; |
2691 | thr->prev = thr; |
2692 | MUTEX_UNLOCK(&threads_mutex); |
2693 | |
4b026b9e |
2694 | #ifdef HAVE_THREAD_INTERN |
2695 | init_thread_intern(thr); |
235db74f |
2696 | #endif |
2697 | |
2698 | #ifdef SET_THREAD_SELF |
2699 | SET_THREAD_SELF(thr); |
199100c8 |
2700 | #else |
2701 | thr->self = pthread_self(); |
235db74f |
2702 | #endif /* SET_THREAD_SELF */ |
199100c8 |
2703 | SET_THR(thr); |
2704 | |
2705 | /* |
2706 | * These must come after the SET_THR because sv_setpvn does |
2707 | * SvTAINT and the taint fields require dTHR. |
2708 | */ |
2709 | toptarget = NEWSV(0,0); |
2710 | sv_upgrade(toptarget, SVt_PVFM); |
2711 | sv_setpvn(toptarget, "", 0); |
2712 | bodytarget = NEWSV(0,0); |
2713 | sv_upgrade(bodytarget, SVt_PVFM); |
2714 | sv_setpvn(bodytarget, "", 0); |
2715 | formtarget = bodytarget; |
2faa37cc |
2716 | thr->errsv = newSVpv("", 0); |
78857c3c |
2717 | (void) find_threadsv("@"); /* Ensure $@ is initialised early */ |
199100c8 |
2718 | return thr; |
2719 | } |
2720 | #endif /* USE_THREADS */ |
2721 | |
93a17b20 |
2722 | void |
76e3520e |
2723 | call_list(I32 oldscope, AV *paramList) |
93a17b20 |
2724 | { |
11343788 |
2725 | dTHR; |
a0d0e21e |
2726 | line_t oldline = curcop->cop_line; |
22921e25 |
2727 | STRLEN len; |
2728 | dJMPENV; |
2729 | int ret; |
93a17b20 |
2730 | |
76e3520e |
2731 | while (AvFILL(paramList) >= 0) { |
2732 | CV *cv = (CV*)av_shift(paramList); |
93a17b20 |
2733 | |
8990e307 |
2734 | SAVEFREESV(cv); |
a0d0e21e |
2735 | |
22921e25 |
2736 | JMPENV_PUSH(ret); |
2737 | switch (ret) { |
748a9306 |
2738 | case 0: { |
38a03e6e |
2739 | SV* atsv = ERRSV; |
748a9306 |
2740 | PUSHMARK(stack_sp); |
2741 | perl_call_sv((SV*)cv, G_EVAL|G_DISCARD); |
12f917ad |
2742 | (void)SvPV(atsv, len); |
748a9306 |
2743 | if (len) { |
54310121 |
2744 | JMPENV_POP; |
748a9306 |
2745 | curcop = &compiling; |
2746 | curcop->cop_line = oldline; |
76e3520e |
2747 | if (paramList == beginav) |
12f917ad |
2748 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); |
748a9306 |
2749 | else |
12f917ad |
2750 | sv_catpv(atsv, "END failed--cleanup aborted"); |
2ae324a7 |
2751 | while (scopestack_ix > oldscope) |
2752 | LEAVE; |
12f917ad |
2753 | croak("%s", SvPVX(atsv)); |
748a9306 |
2754 | } |
a0d0e21e |
2755 | } |
85e6fe83 |
2756 | break; |
2757 | case 1: |
f86702cc |
2758 | STATUS_ALL_FAILURE; |
85e6fe83 |
2759 | /* FALL THROUGH */ |
2760 | case 2: |
2761 | /* my_exit() was called */ |
2ae324a7 |
2762 | while (scopestack_ix > oldscope) |
2763 | LEAVE; |
84902520 |
2764 | FREETMPS; |
85e6fe83 |
2765 | curstash = defstash; |
2766 | if (endav) |
68dc0745 |
2767 | call_list(oldscope, endav); |
54310121 |
2768 | JMPENV_POP; |
a0d0e21e |
2769 | curcop = &compiling; |
2770 | curcop->cop_line = oldline; |
85e6fe83 |
2771 | if (statusvalue) { |
76e3520e |
2772 | if (paramList == beginav) |
a0d0e21e |
2773 | croak("BEGIN failed--compilation aborted"); |
85e6fe83 |
2774 | else |
a0d0e21e |
2775 | croak("END failed--cleanup aborted"); |
85e6fe83 |
2776 | } |
f86702cc |
2777 | my_exit_jump(); |
85e6fe83 |
2778 | /* NOTREACHED */ |
85e6fe83 |
2779 | case 3: |
2780 | if (!restartop) { |
760ac839 |
2781 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
a0d0e21e |
2782 | FREETMPS; |
85e6fe83 |
2783 | break; |
2784 | } |
54310121 |
2785 | JMPENV_POP; |
a0d0e21e |
2786 | curcop = &compiling; |
2787 | curcop->cop_line = oldline; |
54310121 |
2788 | JMPENV_JUMP(3); |
8990e307 |
2789 | } |
54310121 |
2790 | JMPENV_POP; |
93a17b20 |
2791 | } |
93a17b20 |
2792 | } |
93a17b20 |
2793 | |
f86702cc |
2794 | void |
8ac85365 |
2795 | my_exit(U32 status) |
f86702cc |
2796 | { |
5dc0d613 |
2797 | dTHR; |
2798 | |
2799 | #ifdef USE_THREADS |
a863c7d1 |
2800 | DEBUG_L(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n", |
2801 | thr, (unsigned long) status)); |
5dc0d613 |
2802 | #endif /* USE_THREADS */ |
f86702cc |
2803 | switch (status) { |
2804 | case 0: |
2805 | STATUS_ALL_SUCCESS; |
2806 | break; |
2807 | case 1: |
2808 | STATUS_ALL_FAILURE; |
2809 | break; |
2810 | default: |
2811 | STATUS_NATIVE_SET(status); |
2812 | break; |
2813 | } |
2814 | my_exit_jump(); |
2815 | } |
2816 | |
2817 | void |
8ac85365 |
2818 | my_failure_exit(void) |
f86702cc |
2819 | { |
2820 | #ifdef VMS |
2821 | if (vaxc$errno & 1) { |
4fdae800 |
2822 | if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */ |
2823 | STATUS_NATIVE_SET(44); |
f86702cc |
2824 | } |
2825 | else { |
ff0cee69 |
2826 | if (!vaxc$errno && errno) /* unlikely */ |
4fdae800 |
2827 | STATUS_NATIVE_SET(44); |
f86702cc |
2828 | else |
4fdae800 |
2829 | STATUS_NATIVE_SET(vaxc$errno); |
f86702cc |
2830 | } |
2831 | #else |
9b599b2a |
2832 | int exitstatus; |
f86702cc |
2833 | if (errno & 255) |
2834 | STATUS_POSIX_SET(errno); |
9b599b2a |
2835 | else { |
2836 | exitstatus = STATUS_POSIX >> 8; |
2837 | if (exitstatus & 255) |
2838 | STATUS_POSIX_SET(exitstatus); |
2839 | else |
2840 | STATUS_POSIX_SET(255); |
2841 | } |
f86702cc |
2842 | #endif |
2843 | my_exit_jump(); |
93a17b20 |
2844 | } |
2845 | |
76e3520e |
2846 | STATIC void |
8ac85365 |
2847 | my_exit_jump(void) |
f86702cc |
2848 | { |
bac4b2ad |
2849 | dSP; |
c09156bb |
2850 | register PERL_CONTEXT *cx; |
f86702cc |
2851 | I32 gimme; |
2852 | SV **newsp; |
2853 | |
afe37c7d |
2854 | if (e_script) { |
2855 | SvREFCNT_dec(e_script); |
2856 | e_script = Nullsv; |
f86702cc |
2857 | } |
2858 | |
bac4b2ad |
2859 | POPSTACK_TO(mainstack); |
f86702cc |
2860 | if (cxstack_ix >= 0) { |
2861 | if (cxstack_ix > 0) |
2862 | dounwind(0); |
2863 | POPBLOCK(cx,curpm); |
2864 | LEAVE; |
2865 | } |
ff0cee69 |
2866 | |
54310121 |
2867 | JMPENV_JUMP(2); |
f86702cc |
2868 | } |
873ef191 |
2869 | |
2870 | |
2871 | #include "XSUB.h" |
2872 | |
2873 | static I32 |
2874 | #ifdef PERL_OBJECT |
2875 | read_e_script(CPerlObj *pPerl, int idx, SV *buf_sv, int maxlen) |
2876 | #else |
2877 | read_e_script(int idx, SV *buf_sv, int maxlen) |
2878 | #endif |
2879 | { |
2880 | char *p, *nl; |
2881 | FILTER_READ(idx+1, buf_sv, maxlen); |
2882 | p = SvPVX(e_script); |
2883 | nl = strchr(p, '\n'); |
2884 | nl = (nl) ? nl+1 : SvEND(e_script); |
2885 | if (nl-p == 0) |
2886 | return 0; |
2887 | sv_catpvn(buf_sv, p, nl-p); |
2888 | sv_chop(e_script, nl); |
2889 | return 1; |
2890 | } |
2891 | |
2892 | |