Commit | Line | Data |
a0d0e21e |
1 | /* perl.c |
2 | * |
4eb8286e |
3 | * Copyright (c) 1987-1999 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" |
864dbfa3 |
15 | #define PERL_IN_PERL_C |
378cc40b |
16 | #include "perl.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) |
20ce7b12 |
24 | char *getenv (char *); /* Usually in <stdlib.h> */ |
54310121 |
25 | #endif |
26 | |
0cb96387 |
27 | static I32 read_e_script(pTHXo_ int idx, SV *buf_sv, int maxlen); |
28 | |
51fa4eea |
29 | #ifdef I_FCNTL |
30 | #include <fcntl.h> |
31 | #endif |
32 | #ifdef I_SYS_FILE |
33 | #include <sys/file.h> |
34 | #endif |
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 | |
873ef191 |
48 | #ifdef PERL_OBJECT |
01f988be |
49 | CPerlObj* perl_alloc(IPerlMem* ipM, IPerlEnv* ipE, IPerlStdIO* ipStd, |
864dbfa3 |
50 | IPerlLIO* ipLIO, IPerlDir* ipD, IPerlSock* ipS, IPerlProc* ipP) |
01f988be |
51 | { |
52 | CPerlObj* pPerl = new(ipM) CPerlObj(ipM, ipE, ipStd, ipLIO, ipD, ipS, ipP); |
53 | if(pPerl != NULL) |
54 | pPerl->Init(); |
79072805 |
55 | |
01f988be |
56 | return pPerl; |
57 | } |
58 | #else |
93a17b20 |
59 | PerlInterpreter * |
cea2e8a9 |
60 | perl_alloc(void) |
79072805 |
61 | { |
cea2e8a9 |
62 | PerlInterpreter *my_perl; |
79072805 |
63 | |
cea2e8a9 |
64 | New(53, my_perl, 1, PerlInterpreter); |
c5be433b |
65 | PERL_SET_INTERP(my_perl); |
cea2e8a9 |
66 | return my_perl; |
79072805 |
67 | } |
01f988be |
68 | #endif /* PERL_OBJECT */ |
79072805 |
69 | |
70 | void |
0cb96387 |
71 | perl_construct(pTHXx) |
79072805 |
72 | { |
a863c7d1 |
73 | #ifdef USE_THREADS |
74 | int i; |
75 | #ifndef FAKE_THREADS |
52e1cb5e |
76 | struct perl_thread *thr; |
a863c7d1 |
77 | #endif /* FAKE_THREADS */ |
78 | #endif /* USE_THREADS */ |
11343788 |
79 | |
8990e307 |
80 | #ifdef MULTIPLICITY |
cea2e8a9 |
81 | Zero(my_perl, 1, PerlInterpreter); |
8990e307 |
82 | #endif |
79072805 |
83 | |
33f46ff6 |
84 | /* Init the real globals (and main thread)? */ |
3280af22 |
85 | if (!PL_linestr) { |
11343788 |
86 | #ifdef USE_THREADS |
8023c3ce |
87 | |
33f46ff6 |
88 | INIT_THREADS; |
d55594ae |
89 | #ifdef ALLOC_THREAD_KEY |
90 | ALLOC_THREAD_KEY; |
91 | #else |
533c011a |
92 | if (pthread_key_create(&PL_thr_key, 0)) |
cea2e8a9 |
93 | Perl_croak(aTHX_ "panic: pthread_key_create"); |
d55594ae |
94 | #endif |
533c011a |
95 | MUTEX_INIT(&PL_sv_mutex); |
a863c7d1 |
96 | /* |
97 | * Safe to use basic SV functions from now on (though |
98 | * not things like mortals or tainting yet). |
99 | */ |
533c011a |
100 | MUTEX_INIT(&PL_eval_mutex); |
101 | COND_INIT(&PL_eval_cond); |
102 | MUTEX_INIT(&PL_threads_mutex); |
103 | COND_INIT(&PL_nthreads_cond); |
dce16143 |
104 | #ifdef EMULATE_ATOMIC_REFCOUNTS |
533c011a |
105 | MUTEX_INIT(&PL_svref_mutex); |
dce16143 |
106 | #endif /* EMULATE_ATOMIC_REFCOUNTS */ |
a863c7d1 |
107 | |
5ff3f7a4 |
108 | MUTEX_INIT(&PL_cred_mutex); |
109 | |
199100c8 |
110 | thr = init_main_thread(); |
11343788 |
111 | #endif /* USE_THREADS */ |
112 | |
0b94c7bb |
113 | PL_protect = MEMBER_TO_FPTR(Perl_default_protect); /* for exceptions */ |
312caa8e |
114 | |
2aea9f8a |
115 | PL_curcop = &PL_compiling; /* needed by ckWARN, right away */ |
116 | |
3280af22 |
117 | PL_linestr = NEWSV(65,79); |
118 | sv_upgrade(PL_linestr,SVt_PVIV); |
79072805 |
119 | |
3280af22 |
120 | if (!SvREADONLY(&PL_sv_undef)) { |
d689ffdd |
121 | /* set read-only and try to insure than we wont see REFCNT==0 |
122 | very often */ |
123 | |
3280af22 |
124 | SvREADONLY_on(&PL_sv_undef); |
125 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; |
79072805 |
126 | |
3280af22 |
127 | sv_setpv(&PL_sv_no,PL_No); |
128 | SvNV(&PL_sv_no); |
129 | SvREADONLY_on(&PL_sv_no); |
130 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; |
79072805 |
131 | |
3280af22 |
132 | sv_setpv(&PL_sv_yes,PL_Yes); |
133 | SvNV(&PL_sv_yes); |
134 | SvREADONLY_on(&PL_sv_yes); |
135 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; |
6e72f9df |
136 | } |
79072805 |
137 | |
76e3520e |
138 | #ifdef PERL_OBJECT |
139 | /* TODO: */ |
6b88bc9c |
140 | /* PL_sighandlerp = sighandler; */ |
76e3520e |
141 | #else |
cea2e8a9 |
142 | PL_sighandlerp = Perl_sighandler; |
76e3520e |
143 | #endif |
3280af22 |
144 | PL_pidstatus = newHV(); |
44a8e56a |
145 | |
79072805 |
146 | #ifdef MSDOS |
147 | /* |
148 | * There is no way we can refer to them from Perl so close them to save |
149 | * space. The other alternative would be to provide STDAUX and STDPRN |
150 | * filehandles. |
151 | */ |
152 | (void)fclose(stdaux); |
153 | (void)fclose(stdprn); |
154 | #endif |
155 | } |
156 | |
79cb57f6 |
157 | PL_nrs = newSVpvn("\n", 1); |
3280af22 |
158 | PL_rs = SvREFCNT_inc(PL_nrs); |
dc92893f |
159 | |
cea2e8a9 |
160 | init_stacks(); |
8990e307 |
161 | #ifdef MULTIPLICITY |
cb68f92d |
162 | init_interp(); |
8f872242 |
163 | PL_perl_destruct_level = 1; |
8ebc5c01 |
164 | #else |
3280af22 |
165 | if (PL_perl_destruct_level > 0) |
cb68f92d |
166 | init_interp(); |
79072805 |
167 | #endif |
168 | |
748a9306 |
169 | init_ids(); |
3280af22 |
170 | PL_lex_state = LEX_NOTPARSING; |
a5f75d66 |
171 | |
312caa8e |
172 | JMPENV_BOOTSTRAP; |
f86702cc |
173 | STATUS_ALL_SUCCESS; |
174 | |
0672f40e |
175 | init_i18nl10n(1); |
36477c24 |
176 | SET_NUMERIC_STANDARD(); |
cceca5ed |
177 | #if defined(PERL_SUBVERSION) && PERL_SUBVERSION > 0 |
178 | sprintf(PL_patchlevel, "%7.5f", (double) PERL_REVISION |
179 | + ((double) PERL_VERSION / (double) 1000) |
180 | + ((double) PERL_SUBVERSION / (double) 100000)); |
a5f75d66 |
181 | #else |
cceca5ed |
182 | sprintf(PL_patchlevel, "%5.3f", (double) PERL_REVISION + |
183 | ((double) PERL_VERSION / (double) 1000)); |
a5f75d66 |
184 | #endif |
79072805 |
185 | |
ab821d7f |
186 | #if defined(LOCAL_PATCH_COUNT) |
3280af22 |
187 | PL_localpatches = local_patches; /* For possible -v */ |
ab821d7f |
188 | #endif |
189 | |
4b556e6c |
190 | PerlIO_init(); /* Hook to IO system */ |
760ac839 |
191 | |
3280af22 |
192 | PL_fdpid = newAV(); /* for remembering popen pids by fd */ |
193 | PL_modglobal = newHV(); /* pointers to per-interpreter module globals */ |
8990e307 |
194 | |
11343788 |
195 | DEBUG( { |
3280af22 |
196 | New(51,PL_debname,128,char); |
197 | New(52,PL_debdelim,128,char); |
11343788 |
198 | } ) |
199 | |
8990e307 |
200 | ENTER; |
79072805 |
201 | } |
202 | |
203 | void |
0cb96387 |
204 | perl_destruct(pTHXx) |
79072805 |
205 | { |
11343788 |
206 | dTHR; |
748a9306 |
207 | int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
8990e307 |
208 | I32 last_sv_count; |
a0d0e21e |
209 | HV *hv; |
1f2bfc8a |
210 | #ifdef USE_THREADS |
33f46ff6 |
211 | Thread t; |
cea2e8a9 |
212 | dTHX; |
1f2bfc8a |
213 | #endif /* USE_THREADS */ |
8990e307 |
214 | |
11343788 |
215 | #ifdef USE_THREADS |
0f15f207 |
216 | #ifndef FAKE_THREADS |
8023c3ce |
217 | /* Pass 1 on any remaining threads: detach joinables, join zombies */ |
218 | retry_cleanup: |
533c011a |
219 | MUTEX_LOCK(&PL_threads_mutex); |
8b73bbec |
220 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 |
221 | "perl_destruct: waiting for %d threads...\n", |
533c011a |
222 | PL_nthreads - 1)); |
33f46ff6 |
223 | for (t = thr->next; t != thr; t = t->next) { |
605e5515 |
224 | MUTEX_LOCK(&t->mutex); |
225 | switch (ThrSTATE(t)) { |
226 | AV *av; |
c7848ba1 |
227 | case THRf_ZOMBIE: |
8b73bbec |
228 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 |
229 | "perl_destruct: joining zombie %p\n", t)); |
605e5515 |
230 | ThrSETSTATE(t, THRf_DEAD); |
231 | MUTEX_UNLOCK(&t->mutex); |
533c011a |
232 | PL_nthreads--; |
8023c3ce |
233 | /* |
234 | * The SvREFCNT_dec below may take a long time (e.g. av |
235 | * may contain an object scalar whose destructor gets |
236 | * called) so we have to unlock threads_mutex and start |
237 | * all over again. |
238 | */ |
533c011a |
239 | MUTEX_UNLOCK(&PL_threads_mutex); |
ea0efc06 |
240 | JOIN(t, &av); |
605e5515 |
241 | SvREFCNT_dec((SV*)av); |
8b73bbec |
242 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 |
243 | "perl_destruct: joined zombie %p OK\n", t)); |
8023c3ce |
244 | goto retry_cleanup; |
c7848ba1 |
245 | case THRf_R_JOINABLE: |
8b73bbec |
246 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 |
247 | "perl_destruct: detaching thread %p\n", t)); |
248 | ThrSETSTATE(t, THRf_R_DETACHED); |
249 | /* |
250 | * We unlock threads_mutex and t->mutex in the opposite order |
251 | * from which we locked them just so that DETACH won't |
252 | * deadlock if it panics. It's only a breach of good style |
253 | * not a bug since they are unlocks not locks. |
254 | */ |
533c011a |
255 | MUTEX_UNLOCK(&PL_threads_mutex); |
c7848ba1 |
256 | DETACH(t); |
257 | MUTEX_UNLOCK(&t->mutex); |
8023c3ce |
258 | goto retry_cleanup; |
c7848ba1 |
259 | default: |
8b73bbec |
260 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 |
261 | "perl_destruct: ignoring %p (state %u)\n", |
262 | t, ThrSTATE(t))); |
263 | MUTEX_UNLOCK(&t->mutex); |
c7848ba1 |
264 | /* fall through and out */ |
33f46ff6 |
265 | } |
266 | } |
8023c3ce |
267 | /* We leave the above "Pass 1" loop with threads_mutex still locked */ |
268 | |
269 | /* Pass 2 on remaining threads: wait for the thread count to drop to one */ |
533c011a |
270 | while (PL_nthreads > 1) |
11343788 |
271 | { |
8b73bbec |
272 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 |
273 | "perl_destruct: final wait for %d threads\n", |
533c011a |
274 | PL_nthreads - 1)); |
275 | COND_WAIT(&PL_nthreads_cond, &PL_threads_mutex); |
11343788 |
276 | } |
277 | /* At this point, we're the last thread */ |
533c011a |
278 | MUTEX_UNLOCK(&PL_threads_mutex); |
8b73bbec |
279 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "perl_destruct: armageddon has arrived\n")); |
533c011a |
280 | MUTEX_DESTROY(&PL_threads_mutex); |
281 | COND_DESTROY(&PL_nthreads_cond); |
0f15f207 |
282 | #endif /* !defined(FAKE_THREADS) */ |
11343788 |
283 | #endif /* USE_THREADS */ |
284 | |
3280af22 |
285 | destruct_level = PL_perl_destruct_level; |
4633a7c4 |
286 | #ifdef DEBUGGING |
287 | { |
288 | char *s; |
76e3520e |
289 | if (s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL")) { |
5f05dabc |
290 | int i = atoi(s); |
291 | if (destruct_level < i) |
292 | destruct_level = i; |
293 | } |
4633a7c4 |
294 | } |
295 | #endif |
296 | |
8990e307 |
297 | LEAVE; |
a0d0e21e |
298 | FREETMPS; |
299 | |
ff0cee69 |
300 | /* We must account for everything. */ |
301 | |
302 | /* Destroy the main CV and syntax tree */ |
3280af22 |
303 | if (PL_main_root) { |
304 | PL_curpad = AvARRAY(PL_comppad); |
305 | op_free(PL_main_root); |
306 | PL_main_root = Nullop; |
a0d0e21e |
307 | } |
3280af22 |
308 | PL_curcop = &PL_compiling; |
309 | PL_main_start = Nullop; |
310 | SvREFCNT_dec(PL_main_cv); |
311 | PL_main_cv = Nullcv; |
24d3c518 |
312 | PL_dirty = TRUE; |
ff0cee69 |
313 | |
3280af22 |
314 | if (PL_sv_objcount) { |
a0d0e21e |
315 | /* |
316 | * Try to destruct global references. We do this first so that the |
317 | * destructors and destructees still exist. Some sv's might remain. |
318 | * Non-referenced objects are on their own. |
319 | */ |
a0d0e21e |
320 | sv_clean_objs(); |
8990e307 |
321 | } |
322 | |
5cd24f17 |
323 | /* unhook hooks which will soon be, or use, destroyed data */ |
3280af22 |
324 | SvREFCNT_dec(PL_warnhook); |
325 | PL_warnhook = Nullsv; |
326 | SvREFCNT_dec(PL_diehook); |
327 | PL_diehook = Nullsv; |
328 | SvREFCNT_dec(PL_parsehook); |
329 | PL_parsehook = Nullsv; |
5cd24f17 |
330 | |
4b556e6c |
331 | /* call exit list functions */ |
3280af22 |
332 | while (PL_exitlistlen-- > 0) |
0cb96387 |
333 | PL_exitlist[PL_exitlistlen].fn(aTHXo_ PL_exitlist[PL_exitlistlen].ptr); |
4b556e6c |
334 | |
3280af22 |
335 | Safefree(PL_exitlist); |
4b556e6c |
336 | |
a0d0e21e |
337 | if (destruct_level == 0){ |
8990e307 |
338 | |
a0d0e21e |
339 | DEBUG_P(debprofdump()); |
340 | |
341 | /* The exit() function will do everything that needs doing. */ |
342 | return; |
343 | } |
5dd60ef7 |
344 | |
5f05dabc |
345 | /* loosen bonds of global variables */ |
346 | |
3280af22 |
347 | if(PL_rsfp) { |
348 | (void)PerlIO_close(PL_rsfp); |
349 | PL_rsfp = Nullfp; |
8ebc5c01 |
350 | } |
351 | |
352 | /* Filters for program text */ |
3280af22 |
353 | SvREFCNT_dec(PL_rsfp_filters); |
354 | PL_rsfp_filters = Nullav; |
8ebc5c01 |
355 | |
356 | /* switches */ |
3280af22 |
357 | PL_preprocess = FALSE; |
358 | PL_minus_n = FALSE; |
359 | PL_minus_p = FALSE; |
360 | PL_minus_l = FALSE; |
361 | PL_minus_a = FALSE; |
362 | PL_minus_F = FALSE; |
363 | PL_doswitches = FALSE; |
599cee73 |
364 | PL_dowarn = G_WARN_OFF; |
3280af22 |
365 | PL_doextract = FALSE; |
366 | PL_sawampersand = FALSE; /* must save all match strings */ |
367 | PL_sawstudy = FALSE; /* do fbm_instr on all strings */ |
368 | PL_sawvec = FALSE; |
369 | PL_unsafe = FALSE; |
370 | |
371 | Safefree(PL_inplace); |
372 | PL_inplace = Nullch; |
373 | |
374 | if (PL_e_script) { |
375 | SvREFCNT_dec(PL_e_script); |
376 | PL_e_script = Nullsv; |
8ebc5c01 |
377 | } |
378 | |
379 | /* magical thingies */ |
380 | |
3280af22 |
381 | Safefree(PL_ofs); /* $, */ |
382 | PL_ofs = Nullch; |
5f05dabc |
383 | |
3280af22 |
384 | Safefree(PL_ors); /* $\ */ |
385 | PL_ors = Nullch; |
8ebc5c01 |
386 | |
3280af22 |
387 | SvREFCNT_dec(PL_rs); /* $/ */ |
388 | PL_rs = Nullsv; |
dc92893f |
389 | |
3280af22 |
390 | SvREFCNT_dec(PL_nrs); /* $/ helper */ |
391 | PL_nrs = Nullsv; |
5f05dabc |
392 | |
3280af22 |
393 | PL_multiline = 0; /* $* */ |
5f05dabc |
394 | |
3280af22 |
395 | SvREFCNT_dec(PL_statname); |
396 | PL_statname = Nullsv; |
397 | PL_statgv = Nullgv; |
5f05dabc |
398 | |
8ebc5c01 |
399 | /* defgv, aka *_ should be taken care of elsewhere */ |
400 | |
8ebc5c01 |
401 | /* clean up after study() */ |
3280af22 |
402 | SvREFCNT_dec(PL_lastscream); |
403 | PL_lastscream = Nullsv; |
404 | Safefree(PL_screamfirst); |
405 | PL_screamfirst = 0; |
406 | Safefree(PL_screamnext); |
407 | PL_screamnext = 0; |
8ebc5c01 |
408 | |
409 | /* startup and shutdown function lists */ |
3280af22 |
410 | SvREFCNT_dec(PL_beginav); |
411 | SvREFCNT_dec(PL_endav); |
412 | SvREFCNT_dec(PL_initav); |
413 | PL_beginav = Nullav; |
414 | PL_endav = Nullav; |
415 | PL_initav = Nullav; |
5618dfe8 |
416 | |
8ebc5c01 |
417 | /* shortcuts just get cleared */ |
3280af22 |
418 | PL_envgv = Nullgv; |
419 | PL_siggv = Nullgv; |
420 | PL_incgv = Nullgv; |
421 | PL_hintgv = Nullgv; |
422 | PL_errgv = Nullgv; |
423 | PL_argvgv = Nullgv; |
424 | PL_argvoutgv = Nullgv; |
425 | PL_stdingv = Nullgv; |
426 | PL_last_in_gv = Nullgv; |
427 | PL_replgv = Nullgv; |
8ebc5c01 |
428 | |
429 | /* reset so print() ends up where we expect */ |
430 | setdefout(Nullgv); |
431 | |
a0d0e21e |
432 | /* Prepare to destruct main symbol table. */ |
5f05dabc |
433 | |
3280af22 |
434 | hv = PL_defstash; |
435 | PL_defstash = 0; |
a0d0e21e |
436 | SvREFCNT_dec(hv); |
437 | |
438 | FREETMPS; |
0453d815 |
439 | if (destruct_level >= 2 && ckWARN_d(WARN_INTERNAL)) { |
3280af22 |
440 | if (PL_scopestack_ix != 0) |
0453d815 |
441 | Perl_warner(aTHX_ WARN_INTERNAL, |
442 | "Unbalanced scopes: %ld more ENTERs than LEAVEs\n", |
3280af22 |
443 | (long)PL_scopestack_ix); |
444 | if (PL_savestack_ix != 0) |
0453d815 |
445 | Perl_warner(aTHX_ WARN_INTERNAL, |
446 | "Unbalanced saves: %ld more saves than restores\n", |
3280af22 |
447 | (long)PL_savestack_ix); |
448 | if (PL_tmps_floor != -1) |
0453d815 |
449 | Perl_warner(aTHX_ WARN_INTERNAL,"Unbalanced tmps: %ld more allocs than frees\n", |
3280af22 |
450 | (long)PL_tmps_floor + 1); |
a0d0e21e |
451 | if (cxstack_ix != -1) |
0453d815 |
452 | Perl_warner(aTHX_ WARN_INTERNAL,"Unbalanced context: %ld more PUSHes than POPs\n", |
ff0cee69 |
453 | (long)cxstack_ix + 1); |
a0d0e21e |
454 | } |
8990e307 |
455 | |
456 | /* Now absolutely destruct everything, somehow or other, loops or no. */ |
8990e307 |
457 | last_sv_count = 0; |
3280af22 |
458 | SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
459 | while (PL_sv_count != 0 && PL_sv_count != last_sv_count) { |
460 | last_sv_count = PL_sv_count; |
8990e307 |
461 | sv_clean_all(); |
462 | } |
3280af22 |
463 | SvFLAGS(PL_strtab) &= ~SVTYPEMASK; |
464 | SvFLAGS(PL_strtab) |= SVt_PVHV; |
6e72f9df |
465 | |
466 | /* Destruct the global string table. */ |
467 | { |
468 | /* Yell and reset the HeVAL() slots that are still holding refcounts, |
469 | * so that sv_free() won't fail on them. |
470 | */ |
471 | I32 riter; |
472 | I32 max; |
473 | HE *hent; |
474 | HE **array; |
475 | |
476 | riter = 0; |
3280af22 |
477 | max = HvMAX(PL_strtab); |
478 | array = HvARRAY(PL_strtab); |
6e72f9df |
479 | hent = array[0]; |
480 | for (;;) { |
0453d815 |
481 | if (hent && ckWARN_d(WARN_INTERNAL)) { |
482 | Perl_warner(aTHX_ WARN_INTERNAL, |
483 | "Unbalanced string table refcount: (%d) for \"%s\"", |
6e72f9df |
484 | HeVAL(hent) - Nullsv, HeKEY(hent)); |
485 | HeVAL(hent) = Nullsv; |
486 | hent = HeNEXT(hent); |
487 | } |
488 | if (!hent) { |
489 | if (++riter > max) |
490 | break; |
491 | hent = array[riter]; |
492 | } |
493 | } |
494 | } |
3280af22 |
495 | SvREFCNT_dec(PL_strtab); |
6e72f9df |
496 | |
0453d815 |
497 | if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL)) |
498 | Perl_warner(aTHX_ WARN_INTERNAL,"Scalars leaked: %ld\n", (long)PL_sv_count); |
6e72f9df |
499 | |
4633a7c4 |
500 | sv_free_arenas(); |
44a8e56a |
501 | |
502 | /* No SVs have survived, need to clean out */ |
3280af22 |
503 | PL_linestr = NULL; |
504 | PL_pidstatus = Nullhv; |
505 | Safefree(PL_origfilename); |
506 | Safefree(PL_archpat_auto); |
507 | Safefree(PL_reg_start_tmp); |
5c5e4c24 |
508 | if (PL_reg_curpm) |
509 | Safefree(PL_reg_curpm); |
2c2d71f5 |
510 | Safefree(PL_reg_poscache); |
3280af22 |
511 | Safefree(HeKEY_hek(&PL_hv_fetch_ent_mh)); |
512 | Safefree(PL_op_mask); |
6e72f9df |
513 | nuke_stacks(); |
3280af22 |
514 | PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */ |
a0d0e21e |
515 | |
516 | DEBUG_P(debprofdump()); |
11343788 |
517 | #ifdef USE_THREADS |
5f08fbcd |
518 | MUTEX_DESTROY(&PL_strtab_mutex); |
533c011a |
519 | MUTEX_DESTROY(&PL_sv_mutex); |
520 | MUTEX_DESTROY(&PL_eval_mutex); |
5ff3f7a4 |
521 | MUTEX_DESTROY(&PL_cred_mutex); |
533c011a |
522 | COND_DESTROY(&PL_eval_cond); |
11d617a5 |
523 | #ifdef EMULATE_ATOMIC_REFCOUNTS |
524 | MUTEX_DESTROY(&PL_svref_mutex); |
525 | #endif /* EMULATE_ATOMIC_REFCOUNTS */ |
fc36a67e |
526 | |
8023c3ce |
527 | /* As the penultimate thing, free the non-arena SV for thrsv */ |
533c011a |
528 | Safefree(SvPVX(PL_thrsv)); |
529 | Safefree(SvANY(PL_thrsv)); |
530 | Safefree(PL_thrsv); |
531 | PL_thrsv = Nullsv; |
8023c3ce |
532 | #endif /* USE_THREADS */ |
533 | |
fc36a67e |
534 | /* As the absolutely last thing, free the non-arena SV for mess() */ |
535 | |
3280af22 |
536 | if (PL_mess_sv) { |
9c63abab |
537 | /* it could have accumulated taint magic */ |
538 | if (SvTYPE(PL_mess_sv) >= SVt_PVMG) { |
539 | MAGIC* mg; |
540 | MAGIC* moremagic; |
541 | for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) { |
542 | moremagic = mg->mg_moremagic; |
543 | if (mg->mg_ptr && mg->mg_type != 'g' && mg->mg_len >= 0) |
544 | Safefree(mg->mg_ptr); |
545 | Safefree(mg); |
546 | } |
547 | } |
fc36a67e |
548 | /* we know that type >= SVt_PV */ |
3280af22 |
549 | SvOOK_off(PL_mess_sv); |
550 | Safefree(SvPVX(PL_mess_sv)); |
551 | Safefree(SvANY(PL_mess_sv)); |
552 | Safefree(PL_mess_sv); |
553 | PL_mess_sv = Nullsv; |
fc36a67e |
554 | } |
79072805 |
555 | } |
556 | |
557 | void |
0cb96387 |
558 | perl_free(pTHXx) |
79072805 |
559 | { |
c5be433b |
560 | #if defined(PERL_OBJECT) |
561 | Safefree(this); |
76e3520e |
562 | #else |
c5be433b |
563 | Safefree(aTHXx); |
76e3520e |
564 | #endif |
79072805 |
565 | } |
566 | |
4b556e6c |
567 | void |
864dbfa3 |
568 | Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr) |
4b556e6c |
569 | { |
3280af22 |
570 | Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry); |
571 | PL_exitlist[PL_exitlistlen].fn = fn; |
572 | PL_exitlist[PL_exitlistlen].ptr = ptr; |
573 | ++PL_exitlistlen; |
4b556e6c |
574 | } |
575 | |
79072805 |
576 | int |
0cb96387 |
577 | perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env) |
8d063cd8 |
578 | { |
11343788 |
579 | dTHR; |
6224f72b |
580 | I32 oldscope; |
6224f72b |
581 | int ret; |
cea2e8a9 |
582 | #ifdef USE_THREADS |
583 | dTHX; |
584 | #endif |
8d063cd8 |
585 | |
a687059c |
586 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
587 | #ifdef IAMSUID |
588 | #undef IAMSUID |
cea2e8a9 |
589 | Perl_croak(aTHX_ "suidperl is no longer needed since the kernel can now execute\n\ |
a687059c |
590 | setuid perl scripts securely.\n"); |
591 | #endif |
592 | #endif |
593 | |
8f1f23e8 |
594 | #if defined(__DYNAMIC__) && (defined(NeXT) || defined(__NeXT__)) |
6e72f9df |
595 | _dyld_lookup_and_bind |
596 | ("__environ", (unsigned long *) &environ_pointer, NULL); |
597 | #endif /* environ */ |
598 | |
3280af22 |
599 | PL_origargv = argv; |
600 | PL_origargc = argc; |
a0d0e21e |
601 | #ifndef VMS /* VMS doesn't have environ array */ |
3280af22 |
602 | PL_origenviron = environ; |
a0d0e21e |
603 | #endif |
604 | |
3280af22 |
605 | if (PL_do_undump) { |
a0d0e21e |
606 | |
607 | /* Come here if running an undumped a.out. */ |
608 | |
3280af22 |
609 | PL_origfilename = savepv(argv[0]); |
610 | PL_do_undump = FALSE; |
a0d0e21e |
611 | cxstack_ix = -1; /* start label stack again */ |
748a9306 |
612 | init_ids(); |
a0d0e21e |
613 | init_postdump_symbols(argc,argv,env); |
614 | return 0; |
615 | } |
616 | |
3280af22 |
617 | if (PL_main_root) { |
618 | PL_curpad = AvARRAY(PL_comppad); |
619 | op_free(PL_main_root); |
620 | PL_main_root = Nullop; |
ff0cee69 |
621 | } |
3280af22 |
622 | PL_main_start = Nullop; |
623 | SvREFCNT_dec(PL_main_cv); |
624 | PL_main_cv = Nullcv; |
79072805 |
625 | |
3280af22 |
626 | time(&PL_basetime); |
627 | oldscope = PL_scopestack_ix; |
599cee73 |
628 | PL_dowarn = G_WARN_OFF; |
f86702cc |
629 | |
0b94c7bb |
630 | CALLPROTECT(aTHX_ &ret, MEMBER_TO_FPTR(S_parse_body), env, xsinit); |
6224f72b |
631 | switch (ret) { |
312caa8e |
632 | case 0: |
633 | return 0; |
6224f72b |
634 | case 1: |
635 | STATUS_ALL_FAILURE; |
636 | /* FALL THROUGH */ |
637 | case 2: |
638 | /* my_exit() was called */ |
3280af22 |
639 | while (PL_scopestack_ix > oldscope) |
6224f72b |
640 | LEAVE; |
641 | FREETMPS; |
3280af22 |
642 | PL_curstash = PL_defstash; |
643 | if (PL_endav) |
644 | call_list(oldscope, PL_endav); |
6224f72b |
645 | return STATUS_NATIVE_EXPORT; |
646 | case 3: |
6224f72b |
647 | PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); |
648 | return 1; |
649 | } |
a6c40364 |
650 | return 0; |
312caa8e |
651 | } |
652 | |
653 | STATIC void * |
cea2e8a9 |
654 | S_parse_body(pTHX_ va_list args) |
312caa8e |
655 | { |
656 | dTHR; |
657 | int argc = PL_origargc; |
658 | char **argv = PL_origargv; |
659 | char **env = va_arg(args, char**); |
660 | char *scriptname = NULL; |
661 | int fdscript = -1; |
662 | VOL bool dosearch = FALSE; |
663 | char *validarg = ""; |
664 | AV* comppadlist; |
665 | register SV *sv; |
666 | register char *s; |
667 | |
864dbfa3 |
668 | XSINIT_t xsinit = va_arg(args, XSINIT_t); |
79072805 |
669 | |
3280af22 |
670 | sv_setpvn(PL_linestr,"",0); |
79cb57f6 |
671 | sv = newSVpvn("",0); /* first used for -I flags */ |
6224f72b |
672 | SAVEFREESV(sv); |
673 | init_main_stash(); |
54310121 |
674 | |
6224f72b |
675 | for (argc--,argv++; argc > 0; argc--,argv++) { |
676 | if (argv[0][0] != '-' || !argv[0][1]) |
677 | break; |
678 | #ifdef DOSUID |
679 | if (*validarg) |
680 | validarg = " PHOOEY "; |
681 | else |
682 | validarg = argv[0]; |
13281fa4 |
683 | #endif |
6224f72b |
684 | s = argv[0]+1; |
685 | reswitch: |
686 | switch (*s) { |
1d5472a9 |
687 | #ifndef PERL_STRICT_CR |
688 | case '\r': |
689 | #endif |
6224f72b |
690 | case ' ': |
691 | case '0': |
692 | case 'F': |
693 | case 'a': |
694 | case 'c': |
695 | case 'd': |
696 | case 'D': |
697 | case 'h': |
698 | case 'i': |
699 | case 'l': |
700 | case 'M': |
701 | case 'm': |
702 | case 'n': |
703 | case 'p': |
704 | case 's': |
705 | case 'u': |
706 | case 'U': |
707 | case 'v': |
599cee73 |
708 | case 'W': |
709 | case 'X': |
6224f72b |
710 | case 'w': |
711 | if (s = moreswitches(s)) |
712 | goto reswitch; |
713 | break; |
33b78306 |
714 | |
6224f72b |
715 | case 'T': |
3280af22 |
716 | PL_tainting = TRUE; |
6224f72b |
717 | s++; |
718 | goto reswitch; |
f86702cc |
719 | |
6224f72b |
720 | case 'e': |
3280af22 |
721 | if (PL_euid != PL_uid || PL_egid != PL_gid) |
cea2e8a9 |
722 | Perl_croak(aTHX_ "No -e allowed in setuid scripts"); |
3280af22 |
723 | if (!PL_e_script) { |
79cb57f6 |
724 | PL_e_script = newSVpvn("",0); |
0cb96387 |
725 | filter_add(read_e_script, NULL); |
6224f72b |
726 | } |
727 | if (*++s) |
3280af22 |
728 | sv_catpv(PL_e_script, s); |
6224f72b |
729 | else if (argv[1]) { |
3280af22 |
730 | sv_catpv(PL_e_script, argv[1]); |
6224f72b |
731 | argc--,argv++; |
732 | } |
733 | else |
cea2e8a9 |
734 | Perl_croak(aTHX_ "No code specified for -e"); |
3280af22 |
735 | sv_catpv(PL_e_script, "\n"); |
6224f72b |
736 | break; |
afe37c7d |
737 | |
6224f72b |
738 | case 'I': /* -I handled both here and in moreswitches() */ |
739 | forbid_setid("-I"); |
740 | if (!*++s && (s=argv[1]) != Nullch) { |
741 | argc--,argv++; |
742 | } |
743 | while (s && isSPACE(*s)) |
744 | ++s; |
745 | if (s && *s) { |
746 | char *e, *p; |
747 | for (e = s; *e && !isSPACE(*e); e++) ; |
748 | p = savepvn(s, e-s); |
749 | incpush(p, TRUE); |
750 | sv_catpv(sv,"-I"); |
751 | sv_catpv(sv,p); |
752 | sv_catpv(sv," "); |
753 | Safefree(p); |
754 | } /* XXX else croak? */ |
755 | break; |
756 | case 'P': |
757 | forbid_setid("-P"); |
3280af22 |
758 | PL_preprocess = TRUE; |
6224f72b |
759 | s++; |
760 | goto reswitch; |
761 | case 'S': |
762 | forbid_setid("-S"); |
763 | dosearch = TRUE; |
764 | s++; |
765 | goto reswitch; |
766 | case 'V': |
3280af22 |
767 | if (!PL_preambleav) |
768 | PL_preambleav = newAV(); |
769 | av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0)); |
6224f72b |
770 | if (*++s != ':') { |
3280af22 |
771 | PL_Sv = newSVpv("print myconfig();",0); |
6224f72b |
772 | #ifdef VMS |
6b88bc9c |
773 | sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\","); |
6224f72b |
774 | #else |
3280af22 |
775 | sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\","); |
6224f72b |
776 | #endif |
22c35a8c |
777 | #if defined(DEBUGGING) || defined(MULTIPLICITY) |
3280af22 |
778 | sv_catpv(PL_Sv,"\" Compile-time options:"); |
6224f72b |
779 | # ifdef DEBUGGING |
3280af22 |
780 | sv_catpv(PL_Sv," DEBUGGING"); |
6224f72b |
781 | # endif |
6224f72b |
782 | # ifdef MULTIPLICITY |
8f872242 |
783 | sv_catpv(PL_Sv," MULTIPLICITY"); |
6224f72b |
784 | # endif |
3280af22 |
785 | sv_catpv(PL_Sv,"\\n\","); |
6224f72b |
786 | #endif |
787 | #if defined(LOCAL_PATCH_COUNT) |
788 | if (LOCAL_PATCH_COUNT > 0) { |
789 | int i; |
3280af22 |
790 | sv_catpv(PL_Sv,"\" Locally applied patches:\\n\","); |
6224f72b |
791 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { |
3280af22 |
792 | if (PL_localpatches[i]) |
cea2e8a9 |
793 | Perl_sv_catpvf(aTHX_ PL_Sv,"q\" \t%s\n\",",PL_localpatches[i]); |
6224f72b |
794 | } |
795 | } |
796 | #endif |
cea2e8a9 |
797 | Perl_sv_catpvf(aTHX_ PL_Sv,"\" Built under %s\\n\"",OSNAME); |
6224f72b |
798 | #ifdef __DATE__ |
799 | # ifdef __TIME__ |
cea2e8a9 |
800 | Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__); |
6224f72b |
801 | # else |
cea2e8a9 |
802 | Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled on %s\\n\"",__DATE__); |
6224f72b |
803 | # endif |
804 | #endif |
3280af22 |
805 | sv_catpv(PL_Sv, "; \ |
6224f72b |
806 | $\"=\"\\n \"; \ |
807 | @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; \ |
808 | print \" \\%ENV:\\n @env\\n\" if @env; \ |
809 | print \" \\@INC:\\n @INC\\n\";"); |
810 | } |
811 | else { |
3280af22 |
812 | PL_Sv = newSVpv("config_vars(qw(",0); |
813 | sv_catpv(PL_Sv, ++s); |
814 | sv_catpv(PL_Sv, "))"); |
6224f72b |
815 | s += strlen(s); |
816 | } |
3280af22 |
817 | av_push(PL_preambleav, PL_Sv); |
6224f72b |
818 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
819 | goto reswitch; |
820 | case 'x': |
3280af22 |
821 | PL_doextract = TRUE; |
6224f72b |
822 | s++; |
823 | if (*s) |
3280af22 |
824 | PL_cddir = savepv(s); |
6224f72b |
825 | break; |
826 | case 0: |
827 | break; |
828 | case '-': |
829 | if (!*++s || isSPACE(*s)) { |
830 | argc--,argv++; |
831 | goto switch_end; |
832 | } |
833 | /* catch use of gnu style long options */ |
834 | if (strEQ(s, "version")) { |
835 | s = "v"; |
836 | goto reswitch; |
837 | } |
838 | if (strEQ(s, "help")) { |
839 | s = "h"; |
840 | goto reswitch; |
841 | } |
842 | s--; |
843 | /* FALL THROUGH */ |
844 | default: |
cea2e8a9 |
845 | Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s); |
8d063cd8 |
846 | } |
847 | } |
6224f72b |
848 | switch_end: |
54310121 |
849 | |
f675dbe5 |
850 | if ( |
851 | #ifndef SECURE_INTERNAL_GETENV |
852 | !PL_tainting && |
853 | #endif |
854 | (s = PerlEnv_getenv("PERL5OPT"))) { |
74288ac8 |
855 | while (isSPACE(*s)) |
856 | s++; |
857 | if (*s == '-' && *(s+1) == 'T') |
858 | PL_tainting = TRUE; |
859 | else { |
860 | while (s && *s) { |
861 | while (isSPACE(*s)) |
862 | s++; |
863 | if (*s == '-') { |
864 | s++; |
865 | if (isSPACE(*s)) |
866 | continue; |
867 | } |
868 | if (!*s) |
869 | break; |
870 | if (!strchr("DIMUdmw", *s)) |
cea2e8a9 |
871 | Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s); |
74288ac8 |
872 | s = moreswitches(s); |
6224f72b |
873 | } |
6224f72b |
874 | } |
875 | } |
a0d0e21e |
876 | |
6224f72b |
877 | if (!scriptname) |
878 | scriptname = argv[0]; |
3280af22 |
879 | if (PL_e_script) { |
6224f72b |
880 | argc++,argv--; |
881 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
882 | } |
883 | else if (scriptname == Nullch) { |
884 | #ifdef MSDOS |
885 | if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) ) |
886 | moreswitches("h"); |
887 | #endif |
888 | scriptname = "-"; |
889 | } |
890 | |
891 | init_perllib(); |
892 | |
893 | open_script(scriptname,dosearch,sv,&fdscript); |
894 | |
895 | validate_suid(validarg, scriptname,fdscript); |
896 | |
3280af22 |
897 | if (PL_doextract) |
6224f72b |
898 | find_beginning(); |
899 | |
3280af22 |
900 | PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0); |
901 | sv_upgrade((SV *)PL_compcv, SVt_PVCV); |
902 | CvUNIQUE_on(PL_compcv); |
903 | |
904 | PL_comppad = newAV(); |
905 | av_push(PL_comppad, Nullsv); |
906 | PL_curpad = AvARRAY(PL_comppad); |
907 | PL_comppad_name = newAV(); |
908 | PL_comppad_name_fill = 0; |
909 | PL_min_intro_pending = 0; |
910 | PL_padix = 0; |
6224f72b |
911 | #ifdef USE_THREADS |
79cb57f6 |
912 | av_store(PL_comppad_name, 0, newSVpvn("@_", 2)); |
533c011a |
913 | PL_curpad[0] = (SV*)newAV(); |
914 | SvPADMY_on(PL_curpad[0]); /* XXX Needed? */ |
915 | CvOWNER(PL_compcv) = 0; |
916 | New(666, CvMUTEXP(PL_compcv), 1, perl_mutex); |
917 | MUTEX_INIT(CvMUTEXP(PL_compcv)); |
6224f72b |
918 | #endif /* USE_THREADS */ |
919 | |
920 | comppadlist = newAV(); |
921 | AvREAL_off(comppadlist); |
3280af22 |
922 | av_store(comppadlist, 0, (SV*)PL_comppad_name); |
923 | av_store(comppadlist, 1, (SV*)PL_comppad); |
924 | CvPADLIST(PL_compcv) = comppadlist; |
6224f72b |
925 | |
926 | boot_core_UNIVERSAL(); |
927 | |
928 | if (xsinit) |
0cb96387 |
929 | (*xsinit)(aTHXo); /* in case linked C routines want magical variables */ |
6224f72b |
930 | #if defined(VMS) || defined(WIN32) || defined(DJGPP) |
c5be433b |
931 | init_os_extras(); |
6224f72b |
932 | #endif |
933 | |
29209bc5 |
934 | #ifdef USE_SOCKS |
935 | SOCKSinit(argv[0]); |
936 | #endif |
937 | |
6224f72b |
938 | init_predump_symbols(); |
939 | /* init_postdump_symbols not currently designed to be called */ |
940 | /* more than once (ENV isn't cleared first, for example) */ |
941 | /* But running with -u leaves %ENV & @ARGV undefined! XXX */ |
3280af22 |
942 | if (!PL_do_undump) |
6224f72b |
943 | init_postdump_symbols(argc,argv,env); |
944 | |
945 | init_lexer(); |
946 | |
947 | /* now parse the script */ |
948 | |
949 | SETERRNO(0,SS$_NORMAL); |
3280af22 |
950 | PL_error_count = 0; |
951 | if (yyparse() || PL_error_count) { |
952 | if (PL_minus_c) |
cea2e8a9 |
953 | Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename); |
6224f72b |
954 | else { |
cea2e8a9 |
955 | Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", |
097ee67d |
956 | PL_origfilename); |
6224f72b |
957 | } |
958 | } |
3280af22 |
959 | PL_curcop->cop_line = 0; |
960 | PL_curstash = PL_defstash; |
961 | PL_preprocess = FALSE; |
962 | if (PL_e_script) { |
963 | SvREFCNT_dec(PL_e_script); |
964 | PL_e_script = Nullsv; |
6224f72b |
965 | } |
966 | |
967 | /* now that script is parsed, we can modify record separator */ |
3280af22 |
968 | SvREFCNT_dec(PL_rs); |
969 | PL_rs = SvREFCNT_inc(PL_nrs); |
864dbfa3 |
970 | sv_setsv(get_sv("/", TRUE), PL_rs); |
3280af22 |
971 | if (PL_do_undump) |
6224f72b |
972 | my_unexec(); |
973 | |
0453d815 |
974 | if (isWARN_ONCE) |
3280af22 |
975 | gv_check(PL_defstash); |
6224f72b |
976 | |
977 | LEAVE; |
978 | FREETMPS; |
979 | |
980 | #ifdef MYMALLOC |
981 | if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) |
982 | dump_mstats("after compilation:"); |
983 | #endif |
984 | |
985 | ENTER; |
3280af22 |
986 | PL_restartop = 0; |
312caa8e |
987 | return NULL; |
6224f72b |
988 | } |
989 | |
990 | int |
0cb96387 |
991 | perl_run(pTHXx) |
6224f72b |
992 | { |
de616352 |
993 | dTHR; |
6224f72b |
994 | I32 oldscope; |
6224f72b |
995 | int ret; |
cea2e8a9 |
996 | #ifdef USE_THREADS |
997 | dTHX; |
998 | #endif |
6224f72b |
999 | |
3280af22 |
1000 | oldscope = PL_scopestack_ix; |
6224f72b |
1001 | |
312caa8e |
1002 | redo_body: |
0b94c7bb |
1003 | CALLPROTECT(aTHX_ &ret, MEMBER_TO_FPTR(S_run_body), oldscope); |
6224f72b |
1004 | switch (ret) { |
1005 | case 1: |
1006 | cxstack_ix = -1; /* start context stack again */ |
312caa8e |
1007 | goto redo_body; |
1008 | case 0: /* normal completion */ |
1009 | case 2: /* my_exit() */ |
3280af22 |
1010 | while (PL_scopestack_ix > oldscope) |
6224f72b |
1011 | LEAVE; |
1012 | FREETMPS; |
3280af22 |
1013 | PL_curstash = PL_defstash; |
1014 | if (PL_endav) |
1015 | call_list(oldscope, PL_endav); |
6224f72b |
1016 | #ifdef MYMALLOC |
1017 | if (PerlEnv_getenv("PERL_DEBUG_MSTATS")) |
1018 | dump_mstats("after execution: "); |
1019 | #endif |
6224f72b |
1020 | return STATUS_NATIVE_EXPORT; |
1021 | case 3: |
312caa8e |
1022 | if (PL_restartop) { |
1023 | POPSTACK_TO(PL_mainstack); |
1024 | goto redo_body; |
6224f72b |
1025 | } |
312caa8e |
1026 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
1027 | FREETMPS; |
1028 | return 1; |
6224f72b |
1029 | } |
1030 | |
312caa8e |
1031 | /* NOTREACHED */ |
1032 | return 0; |
1033 | } |
1034 | |
1035 | STATIC void * |
cea2e8a9 |
1036 | S_run_body(pTHX_ va_list args) |
312caa8e |
1037 | { |
1038 | dTHR; |
1039 | I32 oldscope = va_arg(args, I32); |
1040 | |
6224f72b |
1041 | DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n", |
3280af22 |
1042 | PL_sawampersand ? "Enabling" : "Omitting")); |
6224f72b |
1043 | |
3280af22 |
1044 | if (!PL_restartop) { |
6224f72b |
1045 | DEBUG_x(dump_all()); |
1046 | DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); |
8b73bbec |
1047 | DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%lx\n", |
6224f72b |
1048 | (unsigned long) thr)); |
6224f72b |
1049 | |
3280af22 |
1050 | if (PL_minus_c) { |
1051 | PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", PL_origfilename); |
6224f72b |
1052 | my_exit(0); |
1053 | } |
3280af22 |
1054 | if (PERLDB_SINGLE && PL_DBsingle) |
312caa8e |
1055 | sv_setiv(PL_DBsingle, 1); |
3280af22 |
1056 | if (PL_initav) |
1057 | call_list(oldscope, PL_initav); |
6224f72b |
1058 | } |
1059 | |
1060 | /* do it */ |
1061 | |
3280af22 |
1062 | if (PL_restartop) { |
533c011a |
1063 | PL_op = PL_restartop; |
3280af22 |
1064 | PL_restartop = 0; |
cea2e8a9 |
1065 | CALLRUNOPS(aTHX); |
6224f72b |
1066 | } |
3280af22 |
1067 | else if (PL_main_start) { |
1068 | CvDEPTH(PL_main_cv) = 1; |
533c011a |
1069 | PL_op = PL_main_start; |
cea2e8a9 |
1070 | CALLRUNOPS(aTHX); |
6224f72b |
1071 | } |
1072 | |
f6b3007c |
1073 | my_exit(0); |
1074 | /* NOTREACHED */ |
312caa8e |
1075 | return NULL; |
6224f72b |
1076 | } |
1077 | |
1078 | SV* |
864dbfa3 |
1079 | Perl_get_sv(pTHX_ const char *name, I32 create) |
6224f72b |
1080 | { |
1081 | GV *gv; |
1082 | #ifdef USE_THREADS |
1083 | if (name[1] == '\0' && !isALPHA(name[0])) { |
1084 | PADOFFSET tmp = find_threadsv(name); |
1085 | if (tmp != NOT_IN_PAD) { |
1086 | dTHR; |
1087 | return THREADSV(tmp); |
1088 | } |
1089 | } |
1090 | #endif /* USE_THREADS */ |
1091 | gv = gv_fetchpv(name, create, SVt_PV); |
1092 | if (gv) |
1093 | return GvSV(gv); |
1094 | return Nullsv; |
1095 | } |
1096 | |
1097 | AV* |
864dbfa3 |
1098 | Perl_get_av(pTHX_ const char *name, I32 create) |
6224f72b |
1099 | { |
1100 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); |
1101 | if (create) |
1102 | return GvAVn(gv); |
1103 | if (gv) |
1104 | return GvAV(gv); |
1105 | return Nullav; |
1106 | } |
1107 | |
1108 | HV* |
864dbfa3 |
1109 | Perl_get_hv(pTHX_ const char *name, I32 create) |
6224f72b |
1110 | { |
a0d0e21e |
1111 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); |
1112 | if (create) |
1113 | return GvHVn(gv); |
1114 | if (gv) |
1115 | return GvHV(gv); |
1116 | return Nullhv; |
1117 | } |
1118 | |
1119 | CV* |
864dbfa3 |
1120 | Perl_get_cv(pTHX_ const char *name, I32 create) |
a0d0e21e |
1121 | { |
1122 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); |
b099ddc0 |
1123 | /* XXX unsafe for threads if eval_owner isn't held */ |
f6ec51f7 |
1124 | /* XXX this is probably not what they think they're getting. |
1125 | * It has the same effect as "sub name;", i.e. just a forward |
1126 | * declaration! */ |
8ebc5c01 |
1127 | if (create && !GvCVu(gv)) |
774d564b |
1128 | return newSUB(start_subparse(FALSE, 0), |
a0d0e21e |
1129 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
4633a7c4 |
1130 | Nullop, |
a0d0e21e |
1131 | Nullop); |
1132 | if (gv) |
8ebc5c01 |
1133 | return GvCVu(gv); |
a0d0e21e |
1134 | return Nullcv; |
1135 | } |
1136 | |
79072805 |
1137 | /* Be sure to refetch the stack pointer after calling these routines. */ |
1138 | |
a0d0e21e |
1139 | I32 |
864dbfa3 |
1140 | Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv) |
8ac85365 |
1141 | |
1142 | /* See G_* flags in cop.h */ |
1143 | /* null terminated arg list */ |
8990e307 |
1144 | { |
a0d0e21e |
1145 | dSP; |
8990e307 |
1146 | |
924508f0 |
1147 | PUSHMARK(SP); |
a0d0e21e |
1148 | if (argv) { |
8990e307 |
1149 | while (*argv) { |
a0d0e21e |
1150 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 |
1151 | argv++; |
1152 | } |
a0d0e21e |
1153 | PUTBACK; |
8990e307 |
1154 | } |
864dbfa3 |
1155 | return call_pv(sub_name, flags); |
8990e307 |
1156 | } |
1157 | |
a0d0e21e |
1158 | I32 |
864dbfa3 |
1159 | Perl_call_pv(pTHX_ const char *sub_name, I32 flags) |
8ac85365 |
1160 | /* name of the subroutine */ |
1161 | /* See G_* flags in cop.h */ |
a0d0e21e |
1162 | { |
864dbfa3 |
1163 | return call_sv((SV*)get_cv(sub_name, TRUE), flags); |
a0d0e21e |
1164 | } |
1165 | |
1166 | I32 |
864dbfa3 |
1167 | Perl_call_method(pTHX_ const char *methname, I32 flags) |
8ac85365 |
1168 | /* name of the subroutine */ |
1169 | /* See G_* flags in cop.h */ |
a0d0e21e |
1170 | { |
1171 | dSP; |
1172 | OP myop; |
533c011a |
1173 | if (!PL_op) |
1174 | PL_op = &myop; |
a0d0e21e |
1175 | XPUSHs(sv_2mortal(newSVpv(methname,0))); |
1176 | PUTBACK; |
cea2e8a9 |
1177 | pp_method(); |
533c011a |
1178 | if(PL_op == &myop) |
1179 | PL_op = Nullop; |
864dbfa3 |
1180 | return call_sv(*PL_stack_sp--, flags); |
a0d0e21e |
1181 | } |
1182 | |
1183 | /* May be called with any of a CV, a GV, or an SV containing the name. */ |
1184 | I32 |
864dbfa3 |
1185 | Perl_call_sv(pTHX_ SV *sv, I32 flags) |
8ac85365 |
1186 | |
1187 | /* See G_* flags in cop.h */ |
a0d0e21e |
1188 | { |
924508f0 |
1189 | dSP; |
a0d0e21e |
1190 | LOGOP myop; /* fake syntax tree node */ |
aa689395 |
1191 | I32 oldmark; |
a0d0e21e |
1192 | I32 retval; |
a0d0e21e |
1193 | I32 oldscope; |
54310121 |
1194 | bool oldcatch = CATCH_GET; |
6224f72b |
1195 | int ret; |
533c011a |
1196 | OP* oldop = PL_op; |
1e422769 |
1197 | |
a0d0e21e |
1198 | if (flags & G_DISCARD) { |
1199 | ENTER; |
1200 | SAVETMPS; |
1201 | } |
1202 | |
aa689395 |
1203 | Zero(&myop, 1, LOGOP); |
54310121 |
1204 | myop.op_next = Nullop; |
f51d4af5 |
1205 | if (!(flags & G_NOARGS)) |
aa689395 |
1206 | myop.op_flags |= OPf_STACKED; |
54310121 |
1207 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
1208 | (flags & G_ARRAY) ? OPf_WANT_LIST : |
1209 | OPf_WANT_SCALAR); |
462e5cf6 |
1210 | SAVEOP(); |
533c011a |
1211 | PL_op = (OP*)&myop; |
aa689395 |
1212 | |
3280af22 |
1213 | EXTEND(PL_stack_sp, 1); |
1214 | *++PL_stack_sp = sv; |
aa689395 |
1215 | oldmark = TOPMARK; |
3280af22 |
1216 | oldscope = PL_scopestack_ix; |
a0d0e21e |
1217 | |
3280af22 |
1218 | if (PERLDB_SUB && PL_curstash != PL_debstash |
36477c24 |
1219 | /* Handle first BEGIN of -d. */ |
3280af22 |
1220 | && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub))) |
36477c24 |
1221 | /* Try harder, since this may have been a sighandler, thus |
1222 | * curstash may be meaningless. */ |
3280af22 |
1223 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash) |
491527d0 |
1224 | && !(flags & G_NODEBUG)) |
533c011a |
1225 | PL_op->op_private |= OPpENTERSUB_DB; |
a0d0e21e |
1226 | |
312caa8e |
1227 | if (!(flags & G_EVAL)) { |
1228 | CATCH_SET(TRUE); |
864dbfa3 |
1229 | call_xbody((OP*)&myop, FALSE); |
312caa8e |
1230 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
1231 | CATCH_SET(FALSE); |
1232 | } |
1233 | else { |
533c011a |
1234 | cLOGOP->op_other = PL_op; |
3280af22 |
1235 | PL_markstack_ptr--; |
4633a7c4 |
1236 | /* we're trying to emulate pp_entertry() here */ |
1237 | { |
c09156bb |
1238 | register PERL_CONTEXT *cx; |
54310121 |
1239 | I32 gimme = GIMME_V; |
4633a7c4 |
1240 | |
1241 | ENTER; |
1242 | SAVETMPS; |
1243 | |
533c011a |
1244 | push_return(PL_op->op_next); |
3280af22 |
1245 | PUSHBLOCK(cx, CXt_EVAL, PL_stack_sp); |
4633a7c4 |
1246 | PUSHEVAL(cx, 0, 0); |
533c011a |
1247 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ |
4633a7c4 |
1248 | |
faef0170 |
1249 | PL_in_eval = EVAL_INEVAL; |
4633a7c4 |
1250 | if (flags & G_KEEPERR) |
faef0170 |
1251 | PL_in_eval |= EVAL_KEEPERR; |
4633a7c4 |
1252 | else |
38a03e6e |
1253 | sv_setpv(ERRSV,""); |
4633a7c4 |
1254 | } |
3280af22 |
1255 | PL_markstack_ptr++; |
a0d0e21e |
1256 | |
312caa8e |
1257 | redo_body: |
0b94c7bb |
1258 | CALLPROTECT(aTHX_ &ret, MEMBER_TO_FPTR(S_call_body), (OP*)&myop, FALSE); |
6224f72b |
1259 | switch (ret) { |
1260 | case 0: |
312caa8e |
1261 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
1262 | if (!(flags & G_KEEPERR)) |
1263 | sv_setpv(ERRSV,""); |
a0d0e21e |
1264 | break; |
6224f72b |
1265 | case 1: |
f86702cc |
1266 | STATUS_ALL_FAILURE; |
a0d0e21e |
1267 | /* FALL THROUGH */ |
6224f72b |
1268 | case 2: |
a0d0e21e |
1269 | /* my_exit() was called */ |
3280af22 |
1270 | PL_curstash = PL_defstash; |
a0d0e21e |
1271 | FREETMPS; |
3280af22 |
1272 | if (PL_statusvalue) |
cea2e8a9 |
1273 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc |
1274 | my_exit_jump(); |
a0d0e21e |
1275 | /* NOTREACHED */ |
6224f72b |
1276 | case 3: |
3280af22 |
1277 | if (PL_restartop) { |
533c011a |
1278 | PL_op = PL_restartop; |
3280af22 |
1279 | PL_restartop = 0; |
312caa8e |
1280 | goto redo_body; |
a0d0e21e |
1281 | } |
3280af22 |
1282 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e |
1283 | if (flags & G_ARRAY) |
1284 | retval = 0; |
1285 | else { |
1286 | retval = 1; |
3280af22 |
1287 | *++PL_stack_sp = &PL_sv_undef; |
a0d0e21e |
1288 | } |
312caa8e |
1289 | break; |
a0d0e21e |
1290 | } |
a0d0e21e |
1291 | |
3280af22 |
1292 | if (PL_scopestack_ix > oldscope) { |
a0a2876f |
1293 | SV **newsp; |
1294 | PMOP *newpm; |
1295 | I32 gimme; |
c09156bb |
1296 | register PERL_CONTEXT *cx; |
a0a2876f |
1297 | I32 optype; |
1298 | |
1299 | POPBLOCK(cx,newpm); |
1300 | POPEVAL(cx); |
1301 | pop_return(); |
3280af22 |
1302 | PL_curpm = newpm; |
a0a2876f |
1303 | LEAVE; |
a0d0e21e |
1304 | } |
a0d0e21e |
1305 | } |
1e422769 |
1306 | |
a0d0e21e |
1307 | if (flags & G_DISCARD) { |
3280af22 |
1308 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e |
1309 | retval = 0; |
1310 | FREETMPS; |
1311 | LEAVE; |
1312 | } |
533c011a |
1313 | PL_op = oldop; |
a0d0e21e |
1314 | return retval; |
1315 | } |
1316 | |
312caa8e |
1317 | STATIC void * |
cea2e8a9 |
1318 | S_call_body(pTHX_ va_list args) |
312caa8e |
1319 | { |
1320 | OP *myop = va_arg(args, OP*); |
1321 | int is_eval = va_arg(args, int); |
1322 | |
864dbfa3 |
1323 | call_xbody(myop, is_eval); |
312caa8e |
1324 | return NULL; |
1325 | } |
1326 | |
1327 | STATIC void |
cea2e8a9 |
1328 | S_call_xbody(pTHX_ OP *myop, int is_eval) |
312caa8e |
1329 | { |
1330 | dTHR; |
1331 | |
1332 | if (PL_op == myop) { |
1333 | if (is_eval) |
cea2e8a9 |
1334 | PL_op = Perl_pp_entereval(aTHX); |
312caa8e |
1335 | else |
cea2e8a9 |
1336 | PL_op = Perl_pp_entersub(aTHX); |
312caa8e |
1337 | } |
1338 | if (PL_op) |
cea2e8a9 |
1339 | CALLRUNOPS(aTHX); |
312caa8e |
1340 | } |
1341 | |
6e72f9df |
1342 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 |
1343 | |
a0d0e21e |
1344 | I32 |
864dbfa3 |
1345 | Perl_eval_sv(pTHX_ SV *sv, I32 flags) |
8ac85365 |
1346 | |
1347 | /* See G_* flags in cop.h */ |
a0d0e21e |
1348 | { |
924508f0 |
1349 | dSP; |
a0d0e21e |
1350 | UNOP myop; /* fake syntax tree node */ |
3280af22 |
1351 | I32 oldmark = SP - PL_stack_base; |
4633a7c4 |
1352 | I32 retval; |
4633a7c4 |
1353 | I32 oldscope; |
6224f72b |
1354 | int ret; |
533c011a |
1355 | OP* oldop = PL_op; |
84902520 |
1356 | |
4633a7c4 |
1357 | if (flags & G_DISCARD) { |
1358 | ENTER; |
1359 | SAVETMPS; |
1360 | } |
1361 | |
462e5cf6 |
1362 | SAVEOP(); |
533c011a |
1363 | PL_op = (OP*)&myop; |
1364 | Zero(PL_op, 1, UNOP); |
3280af22 |
1365 | EXTEND(PL_stack_sp, 1); |
1366 | *++PL_stack_sp = sv; |
1367 | oldscope = PL_scopestack_ix; |
79072805 |
1368 | |
4633a7c4 |
1369 | if (!(flags & G_NOARGS)) |
1370 | myop.op_flags = OPf_STACKED; |
79072805 |
1371 | myop.op_next = Nullop; |
6e72f9df |
1372 | myop.op_type = OP_ENTEREVAL; |
54310121 |
1373 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
1374 | (flags & G_ARRAY) ? OPf_WANT_LIST : |
1375 | OPf_WANT_SCALAR); |
6e72f9df |
1376 | if (flags & G_KEEPERR) |
1377 | myop.op_flags |= OPf_SPECIAL; |
4633a7c4 |
1378 | |
312caa8e |
1379 | redo_body: |
0b94c7bb |
1380 | CALLPROTECT(aTHX_ &ret, MEMBER_TO_FPTR(S_call_body), (OP*)&myop, TRUE); |
6224f72b |
1381 | switch (ret) { |
1382 | case 0: |
312caa8e |
1383 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
1384 | if (!(flags & G_KEEPERR)) |
1385 | sv_setpv(ERRSV,""); |
4633a7c4 |
1386 | break; |
6224f72b |
1387 | case 1: |
f86702cc |
1388 | STATUS_ALL_FAILURE; |
4633a7c4 |
1389 | /* FALL THROUGH */ |
6224f72b |
1390 | case 2: |
4633a7c4 |
1391 | /* my_exit() was called */ |
3280af22 |
1392 | PL_curstash = PL_defstash; |
4633a7c4 |
1393 | FREETMPS; |
3280af22 |
1394 | if (PL_statusvalue) |
cea2e8a9 |
1395 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc |
1396 | my_exit_jump(); |
4633a7c4 |
1397 | /* NOTREACHED */ |
6224f72b |
1398 | case 3: |
3280af22 |
1399 | if (PL_restartop) { |
533c011a |
1400 | PL_op = PL_restartop; |
3280af22 |
1401 | PL_restartop = 0; |
312caa8e |
1402 | goto redo_body; |
4633a7c4 |
1403 | } |
3280af22 |
1404 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 |
1405 | if (flags & G_ARRAY) |
1406 | retval = 0; |
1407 | else { |
1408 | retval = 1; |
3280af22 |
1409 | *++PL_stack_sp = &PL_sv_undef; |
4633a7c4 |
1410 | } |
312caa8e |
1411 | break; |
4633a7c4 |
1412 | } |
1413 | |
4633a7c4 |
1414 | if (flags & G_DISCARD) { |
3280af22 |
1415 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 |
1416 | retval = 0; |
1417 | FREETMPS; |
1418 | LEAVE; |
1419 | } |
533c011a |
1420 | PL_op = oldop; |
4633a7c4 |
1421 | return retval; |
1422 | } |
1423 | |
137443ea |
1424 | SV* |
864dbfa3 |
1425 | Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error) |
137443ea |
1426 | { |
1427 | dSP; |
1428 | SV* sv = newSVpv(p, 0); |
1429 | |
924508f0 |
1430 | PUSHMARK(SP); |
864dbfa3 |
1431 | eval_sv(sv, G_SCALAR); |
137443ea |
1432 | SvREFCNT_dec(sv); |
1433 | |
1434 | SPAGAIN; |
1435 | sv = POPs; |
1436 | PUTBACK; |
1437 | |
2d8e6c8d |
1438 | if (croak_on_error && SvTRUE(ERRSV)) { |
1439 | STRLEN n_a; |
cea2e8a9 |
1440 | Perl_croak(aTHX_ SvPVx(ERRSV, n_a)); |
2d8e6c8d |
1441 | } |
137443ea |
1442 | |
1443 | return sv; |
1444 | } |
1445 | |
4633a7c4 |
1446 | /* Require a module. */ |
1447 | |
1448 | void |
864dbfa3 |
1449 | Perl_require_pv(pTHX_ const char *pv) |
4633a7c4 |
1450 | { |
d3acc0f7 |
1451 | SV* sv; |
1452 | dSP; |
e788e7d3 |
1453 | PUSHSTACKi(PERLSI_REQUIRE); |
d3acc0f7 |
1454 | PUTBACK; |
1455 | sv = sv_newmortal(); |
4633a7c4 |
1456 | sv_setpv(sv, "require '"); |
1457 | sv_catpv(sv, pv); |
1458 | sv_catpv(sv, "'"); |
864dbfa3 |
1459 | eval_sv(sv, G_DISCARD); |
d3acc0f7 |
1460 | SPAGAIN; |
1461 | POPSTACK; |
79072805 |
1462 | } |
1463 | |
79072805 |
1464 | void |
864dbfa3 |
1465 | Perl_magicname(pTHX_ char *sym, char *name, I32 namlen) |
79072805 |
1466 | { |
1467 | register GV *gv; |
1468 | |
85e6fe83 |
1469 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 |
1470 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
1471 | } |
1472 | |
76e3520e |
1473 | STATIC void |
cea2e8a9 |
1474 | S_usage(pTHX_ char *name) /* XXX move this out into a module ? */ |
4633a7c4 |
1475 | { |
ab821d7f |
1476 | /* This message really ought to be max 23 lines. |
1477 | * Removed -h because the user already knows that opton. Others? */ |
fb73857a |
1478 | |
76e3520e |
1479 | static char *usage_msg[] = { |
fb73857a |
1480 | "-0[octal] specify record separator (\\0, if no argument)", |
1481 | "-a autosplit mode with -n or -p (splits $_ into @F)", |
1482 | "-c check syntax only (runs BEGIN and END blocks)", |
aac3bd0d |
1483 | "-d[:debugger] run program under debugger", |
1484 | "-D[number/list] set debugging flags (argument is a bit mask or alphabets)", |
1485 | "-e 'command' one line of program (several -e's allowed, omit programfile)", |
1486 | "-F/pattern/ split() pattern for -a switch (//'s are optional)", |
1487 | "-i[extension] edit <> files in place (makes backup if extension supplied)", |
1488 | "-Idirectory specify @INC/#include directory (several -I's allowed)", |
fb73857a |
1489 | "-l[octal] enable line ending processing, specifies line terminator", |
aac3bd0d |
1490 | "-[mM][-]module execute `use/no module...' before executing program", |
1491 | "-n assume 'while (<>) { ... }' loop around program", |
1492 | "-p assume loop like -n but print line also, like sed", |
1493 | "-P run program through C preprocessor before compilation", |
1494 | "-s enable rudimentary parsing for switches after programfile", |
1495 | "-S look for programfile using PATH environment variable", |
1496 | "-T enable tainting checks", |
1497 | "-u dump core after parsing program", |
fb73857a |
1498 | "-U allow unsafe operations", |
aac3bd0d |
1499 | "-v print version, subversion (includes VERY IMPORTANT perl info)", |
1500 | "-V[:variable] print configuration summary (or a single Config.pm variable)", |
1501 | "-w enable many useful warnings (RECOMMENDED)", |
fb73857a |
1502 | "-x[directory] strip off text before #!perl line and perhaps cd to directory", |
1503 | "\n", |
1504 | NULL |
1505 | }; |
76e3520e |
1506 | char **p = usage_msg; |
fb73857a |
1507 | |
ab821d7f |
1508 | printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name); |
fb73857a |
1509 | while (*p) |
1510 | printf("\n %s", *p++); |
4633a7c4 |
1511 | } |
1512 | |
79072805 |
1513 | /* This routine handles any switches that can be given during run */ |
1514 | |
1515 | char * |
864dbfa3 |
1516 | Perl_moreswitches(pTHX_ char *s) |
79072805 |
1517 | { |
1518 | I32 numlen; |
c07a80fd |
1519 | U32 rschar; |
79072805 |
1520 | |
1521 | switch (*s) { |
1522 | case '0': |
a863c7d1 |
1523 | { |
1524 | dTHR; |
c07a80fd |
1525 | rschar = scan_oct(s, 4, &numlen); |
3280af22 |
1526 | SvREFCNT_dec(PL_nrs); |
c07a80fd |
1527 | if (rschar & ~((U8)~0)) |
3280af22 |
1528 | PL_nrs = &PL_sv_undef; |
c07a80fd |
1529 | else if (!rschar && numlen >= 2) |
79cb57f6 |
1530 | PL_nrs = newSVpvn("", 0); |
c07a80fd |
1531 | else { |
1532 | char ch = rschar; |
79cb57f6 |
1533 | PL_nrs = newSVpvn(&ch, 1); |
79072805 |
1534 | } |
1535 | return s + numlen; |
a863c7d1 |
1536 | } |
2304df62 |
1537 | case 'F': |
3280af22 |
1538 | PL_minus_F = TRUE; |
1539 | PL_splitstr = savepv(s + 1); |
2304df62 |
1540 | s += strlen(s); |
1541 | return s; |
79072805 |
1542 | case 'a': |
3280af22 |
1543 | PL_minus_a = TRUE; |
79072805 |
1544 | s++; |
1545 | return s; |
1546 | case 'c': |
3280af22 |
1547 | PL_minus_c = TRUE; |
79072805 |
1548 | s++; |
1549 | return s; |
1550 | case 'd': |
bbce6d69 |
1551 | forbid_setid("-d"); |
4633a7c4 |
1552 | s++; |
c07a80fd |
1553 | if (*s == ':' || *s == '=') { |
cea2e8a9 |
1554 | my_setenv("PERL5DB", Perl_form(aTHX_ "use Devel::%s;", ++s)); |
4633a7c4 |
1555 | s += strlen(s); |
4633a7c4 |
1556 | } |
3280af22 |
1557 | if (!PL_perldb) { |
1558 | PL_perldb = PERLDB_ALL; |
a0d0e21e |
1559 | init_debugger(); |
1560 | } |
79072805 |
1561 | return s; |
1562 | case 'D': |
0453d815 |
1563 | { |
79072805 |
1564 | #ifdef DEBUGGING |
bbce6d69 |
1565 | forbid_setid("-D"); |
79072805 |
1566 | if (isALPHA(s[1])) { |
8b73bbec |
1567 | static char debopts[] = "psltocPmfrxuLHXDS"; |
79072805 |
1568 | char *d; |
1569 | |
93a17b20 |
1570 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
3280af22 |
1571 | PL_debug |= 1 << (d - debopts); |
79072805 |
1572 | } |
1573 | else { |
3280af22 |
1574 | PL_debug = atoi(s+1); |
79072805 |
1575 | for (s++; isDIGIT(*s); s++) ; |
1576 | } |
3280af22 |
1577 | PL_debug |= 0x80000000; |
79072805 |
1578 | #else |
0453d815 |
1579 | dTHR; |
1580 | if (ckWARN_d(WARN_DEBUGGING)) |
1581 | Perl_warner(aTHX_ WARN_DEBUGGING, |
1582 | "Recompile perl with -DDEBUGGING to use -D switch\n"); |
a0d0e21e |
1583 | for (s++; isALNUM(*s); s++) ; |
79072805 |
1584 | #endif |
1585 | /*SUPPRESS 530*/ |
1586 | return s; |
0453d815 |
1587 | } |
4633a7c4 |
1588 | case 'h': |
3280af22 |
1589 | usage(PL_origargv[0]); |
6ad3d225 |
1590 | PerlProc_exit(0); |
79072805 |
1591 | case 'i': |
3280af22 |
1592 | if (PL_inplace) |
1593 | Safefree(PL_inplace); |
1594 | PL_inplace = savepv(s+1); |
79072805 |
1595 | /*SUPPRESS 530*/ |
3280af22 |
1596 | for (s = PL_inplace; *s && !isSPACE(*s); s++) ; |
7b8d334a |
1597 | if (*s) { |
fb73857a |
1598 | *s++ = '\0'; |
7b8d334a |
1599 | if (*s == '-') /* Additional switches on #! line. */ |
1600 | s++; |
1601 | } |
fb73857a |
1602 | return s; |
1603 | case 'I': /* -I handled both here and in parse_perl() */ |
bbce6d69 |
1604 | forbid_setid("-I"); |
fb73857a |
1605 | ++s; |
1606 | while (*s && isSPACE(*s)) |
1607 | ++s; |
1608 | if (*s) { |
774d564b |
1609 | char *e, *p; |
748a9306 |
1610 | for (e = s; *e && !isSPACE(*e); e++) ; |
774d564b |
1611 | p = savepvn(s, e-s); |
1612 | incpush(p, TRUE); |
1613 | Safefree(p); |
fb73857a |
1614 | s = e; |
79072805 |
1615 | } |
1616 | else |
cea2e8a9 |
1617 | Perl_croak(aTHX_ "No space allowed after -I"); |
fb73857a |
1618 | return s; |
79072805 |
1619 | case 'l': |
3280af22 |
1620 | PL_minus_l = TRUE; |
79072805 |
1621 | s++; |
3280af22 |
1622 | if (PL_ors) |
1623 | Safefree(PL_ors); |
79072805 |
1624 | if (isDIGIT(*s)) { |
3280af22 |
1625 | PL_ors = savepv("\n"); |
1626 | PL_orslen = 1; |
1627 | *PL_ors = scan_oct(s, 3 + (*s == '0'), &numlen); |
79072805 |
1628 | s += numlen; |
1629 | } |
1630 | else { |
a863c7d1 |
1631 | dTHR; |
3280af22 |
1632 | if (RsPARA(PL_nrs)) { |
1633 | PL_ors = "\n\n"; |
1634 | PL_orslen = 2; |
c07a80fd |
1635 | } |
1636 | else |
3280af22 |
1637 | PL_ors = SvPV(PL_nrs, PL_orslen); |
1638 | PL_ors = savepvn(PL_ors, PL_orslen); |
79072805 |
1639 | } |
1640 | return s; |
1a30305b |
1641 | case 'M': |
bbce6d69 |
1642 | forbid_setid("-M"); /* XXX ? */ |
1a30305b |
1643 | /* FALL THROUGH */ |
1644 | case 'm': |
bbce6d69 |
1645 | forbid_setid("-m"); /* XXX ? */ |
1a30305b |
1646 | if (*++s) { |
a5f75d66 |
1647 | char *start; |
11343788 |
1648 | SV *sv; |
a5f75d66 |
1649 | char *use = "use "; |
1650 | /* -M-foo == 'no foo' */ |
1651 | if (*s == '-') { use = "no "; ++s; } |
11343788 |
1652 | sv = newSVpv(use,0); |
a5f75d66 |
1653 | start = s; |
1a30305b |
1654 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd |
1655 | while(isALNUM(*s) || *s==':') ++s; |
1656 | if (*s != '=') { |
11343788 |
1657 | sv_catpv(sv, start); |
c07a80fd |
1658 | if (*(start-1) == 'm') { |
1659 | if (*s != '\0') |
cea2e8a9 |
1660 | Perl_croak(aTHX_ "Can't use '%c' after -mname", *s); |
11343788 |
1661 | sv_catpv( sv, " ()"); |
c07a80fd |
1662 | } |
1663 | } else { |
11343788 |
1664 | sv_catpvn(sv, start, s-start); |
1665 | sv_catpv(sv, " split(/,/,q{"); |
1666 | sv_catpv(sv, ++s); |
1667 | sv_catpv(sv, "})"); |
c07a80fd |
1668 | } |
1a30305b |
1669 | s += strlen(s); |
3280af22 |
1670 | if (PL_preambleav == NULL) |
1671 | PL_preambleav = newAV(); |
1672 | av_push(PL_preambleav, sv); |
1a30305b |
1673 | } |
1674 | else |
cea2e8a9 |
1675 | Perl_croak(aTHX_ "No space allowed after -%c", *(s-1)); |
1a30305b |
1676 | return s; |
79072805 |
1677 | case 'n': |
3280af22 |
1678 | PL_minus_n = TRUE; |
79072805 |
1679 | s++; |
1680 | return s; |
1681 | case 'p': |
3280af22 |
1682 | PL_minus_p = TRUE; |
79072805 |
1683 | s++; |
1684 | return s; |
1685 | case 's': |
bbce6d69 |
1686 | forbid_setid("-s"); |
3280af22 |
1687 | PL_doswitches = TRUE; |
79072805 |
1688 | s++; |
1689 | return s; |
463ee0b2 |
1690 | case 'T': |
3280af22 |
1691 | if (!PL_tainting) |
cea2e8a9 |
1692 | Perl_croak(aTHX_ "Too late for \"-T\" option"); |
463ee0b2 |
1693 | s++; |
1694 | return s; |
79072805 |
1695 | case 'u': |
3280af22 |
1696 | PL_do_undump = TRUE; |
79072805 |
1697 | s++; |
1698 | return s; |
1699 | case 'U': |
3280af22 |
1700 | PL_unsafe = TRUE; |
79072805 |
1701 | s++; |
1702 | return s; |
1703 | case 'v': |
cceca5ed |
1704 | #if defined(PERL_SUBVERSION) && PERL_SUBVERSION > 0 |
1705 | printf("\nThis is perl, version %d.%03d_%02d built for %s", |
1706 | PERL_REVISION, PERL_VERSION, PERL_SUBVERSION, ARCHNAME); |
a5f75d66 |
1707 | #else |
fb73857a |
1708 | printf("\nThis is perl, version %s built for %s", |
6b88bc9c |
1709 | PL_patchlevel, ARCHNAME); |
fb73857a |
1710 | #endif |
1711 | #if defined(LOCAL_PATCH_COUNT) |
1712 | if (LOCAL_PATCH_COUNT > 0) |
1713 | printf("\n(with %d registered patch%s, see perl -V for more detail)", |
1714 | LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : ""); |
a5f75d66 |
1715 | #endif |
1a30305b |
1716 | |
4eb8286e |
1717 | printf("\n\nCopyright 1987-1999, Larry Wall\n"); |
79072805 |
1718 | #ifdef MSDOS |
fb73857a |
1719 | printf("\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); |
55497cff |
1720 | #endif |
1721 | #ifdef DJGPP |
1722 | printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n"); |
4eb8286e |
1723 | printf("djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n"); |
4633a7c4 |
1724 | #endif |
79072805 |
1725 | #ifdef OS2 |
5dd60ef7 |
1726 | printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" |
4eb8286e |
1727 | "Version 5 port Copyright (c) 1994-1999, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 |
1728 | #endif |
79072805 |
1729 | #ifdef atarist |
760ac839 |
1730 | printf("atariST series port, ++jrb bammi@cadence.com\n"); |
79072805 |
1731 | #endif |
a3f9223b |
1732 | #ifdef __BEOS__ |
4eb8286e |
1733 | printf("BeOS port Copyright Tom Spindler, 1997-1999\n"); |
a3f9223b |
1734 | #endif |
1d84e8df |
1735 | #ifdef MPE |
4eb8286e |
1736 | printf("MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-1999\n"); |
1d84e8df |
1737 | #endif |
9d116dd7 |
1738 | #ifdef OEMVS |
4eb8286e |
1739 | printf("MVS (OS390) port by Mortice Kern Systems, 1997-1999\n"); |
9d116dd7 |
1740 | #endif |
495c5fdc |
1741 | #ifdef __VOS__ |
4eb8286e |
1742 | printf("Stratus VOS port by Paul_Green@stratus.com, 1997-1999\n"); |
495c5fdc |
1743 | #endif |
092bebab |
1744 | #ifdef __OPEN_VM |
4eb8286e |
1745 | printf("VM/ESA port by Neale Ferguson, 1998-1999\n"); |
092bebab |
1746 | #endif |
a1a0e61e |
1747 | #ifdef POSIX_BC |
4eb8286e |
1748 | printf("BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n"); |
a1a0e61e |
1749 | #endif |
61ae2fbf |
1750 | #ifdef __MINT__ |
4eb8286e |
1751 | printf("MiNT port by Guido Flohr, 1997-1999\n"); |
61ae2fbf |
1752 | #endif |
baed7233 |
1753 | #ifdef BINARY_BUILD_NOTICE |
1754 | BINARY_BUILD_NOTICE; |
1755 | #endif |
760ac839 |
1756 | printf("\n\ |
79072805 |
1757 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
95103687 |
1758 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\ |
1759 | Complete documentation for Perl, including FAQ lists, should be found on\n\ |
1760 | this system using `man perl' or `perldoc perl'. If you have access to the\n\ |
1761 | Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n"); |
6ad3d225 |
1762 | PerlProc_exit(0); |
79072805 |
1763 | case 'w': |
599cee73 |
1764 | if (! (PL_dowarn & G_WARN_ALL_MASK)) |
1765 | PL_dowarn |= G_WARN_ON; |
1766 | s++; |
1767 | return s; |
1768 | case 'W': |
1769 | PL_dowarn = G_WARN_ALL_ON|G_WARN_ON; |
e24b16f9 |
1770 | PL_compiling.cop_warnings = WARN_ALL ; |
599cee73 |
1771 | s++; |
1772 | return s; |
1773 | case 'X': |
1774 | PL_dowarn = G_WARN_ALL_OFF; |
e24b16f9 |
1775 | PL_compiling.cop_warnings = WARN_NONE ; |
79072805 |
1776 | s++; |
1777 | return s; |
a0d0e21e |
1778 | case '*': |
79072805 |
1779 | case ' ': |
1780 | if (s[1] == '-') /* Additional switches on #! line. */ |
1781 | return s+2; |
1782 | break; |
a0d0e21e |
1783 | case '-': |
79072805 |
1784 | case 0: |
51882d45 |
1785 | #if defined(WIN32) || !defined(PERL_STRICT_CR) |
a868473f |
1786 | case '\r': |
1787 | #endif |
79072805 |
1788 | case '\n': |
1789 | case '\t': |
1790 | break; |
aa689395 |
1791 | #ifdef ALTERNATE_SHEBANG |
1792 | case 'S': /* OS/2 needs -S on "extproc" line. */ |
1793 | break; |
1794 | #endif |
a0d0e21e |
1795 | case 'P': |
3280af22 |
1796 | if (PL_preprocess) |
a0d0e21e |
1797 | return s+1; |
1798 | /* FALL THROUGH */ |
79072805 |
1799 | default: |
cea2e8a9 |
1800 | Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s); |
79072805 |
1801 | } |
1802 | return Nullch; |
1803 | } |
1804 | |
1805 | /* compliments of Tom Christiansen */ |
1806 | |
1807 | /* unexec() can be found in the Gnu emacs distribution */ |
ee580363 |
1808 | /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */ |
79072805 |
1809 | |
1810 | void |
864dbfa3 |
1811 | Perl_my_unexec(pTHX) |
79072805 |
1812 | { |
1813 | #ifdef UNEXEC |
46fc3d4c |
1814 | SV* prog; |
1815 | SV* file; |
ee580363 |
1816 | int status = 1; |
79072805 |
1817 | extern int etext; |
1818 | |
ee580363 |
1819 | prog = newSVpv(BIN_EXP, 0); |
46fc3d4c |
1820 | sv_catpv(prog, "/perl"); |
6b88bc9c |
1821 | file = newSVpv(PL_origfilename, 0); |
46fc3d4c |
1822 | sv_catpv(file, ".perldump"); |
79072805 |
1823 | |
ee580363 |
1824 | unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0); |
1825 | /* unexec prints msg to stderr in case of failure */ |
6ad3d225 |
1826 | PerlProc_exit(status); |
79072805 |
1827 | #else |
a5f75d66 |
1828 | # ifdef VMS |
1829 | # include <lib$routines.h> |
1830 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ |
aa689395 |
1831 | # else |
79072805 |
1832 | ABORT(); /* for use with undump */ |
aa689395 |
1833 | # endif |
a5f75d66 |
1834 | #endif |
79072805 |
1835 | } |
1836 | |
cb68f92d |
1837 | /* initialize curinterp */ |
1838 | STATIC void |
cea2e8a9 |
1839 | S_init_interp(pTHX) |
cb68f92d |
1840 | { |
1841 | |
066ef5b5 |
1842 | #ifdef PERL_OBJECT /* XXX kludge */ |
cb68f92d |
1843 | #define I_REINIT \ |
6b88bc9c |
1844 | STMT_START { \ |
1845 | PL_chopset = " \n-"; \ |
1846 | PL_copline = NOLINE; \ |
1847 | PL_curcop = &PL_compiling;\ |
1848 | PL_curcopdb = NULL; \ |
1849 | PL_dbargs = 0; \ |
1850 | PL_dlmax = 128; \ |
3967c732 |
1851 | PL_dumpindent = 4; \ |
6b88bc9c |
1852 | PL_laststatval = -1; \ |
1853 | PL_laststype = OP_STAT; \ |
1854 | PL_maxscream = -1; \ |
1855 | PL_maxsysfd = MAXSYSFD; \ |
1856 | PL_statname = Nullsv; \ |
1857 | PL_tmps_floor = -1; \ |
1858 | PL_tmps_ix = -1; \ |
1859 | PL_op_mask = NULL; \ |
1860 | PL_dlmax = 128; \ |
1861 | PL_laststatval = -1; \ |
1862 | PL_laststype = OP_STAT; \ |
1863 | PL_mess_sv = Nullsv; \ |
1864 | PL_splitstr = " "; \ |
1865 | PL_generation = 100; \ |
1866 | PL_exitlist = NULL; \ |
1867 | PL_exitlistlen = 0; \ |
1868 | PL_regindent = 0; \ |
1869 | PL_in_clean_objs = FALSE; \ |
1870 | PL_in_clean_all = FALSE; \ |
1871 | PL_profiledata = NULL; \ |
1872 | PL_rsfp = Nullfp; \ |
1873 | PL_rsfp_filters = Nullav; \ |
24d3c518 |
1874 | PL_dirty = FALSE; \ |
cb68f92d |
1875 | } STMT_END |
9666903d |
1876 | I_REINIT; |
066ef5b5 |
1877 | #else |
1878 | # ifdef MULTIPLICITY |
1879 | # define PERLVAR(var,type) |
51371543 |
1880 | # define PERLVARA(var,n,type) |
cea2e8a9 |
1881 | # if defined(PERL_IMPLICIT_CONTEXT) |
1882 | # define PERLVARI(var,type,init) my_perl->var = init; |
1883 | # define PERLVARIC(var,type,init) my_perl->var = init; |
1884 | # else |
c5be433b |
1885 | # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init; |
1886 | # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init; |
cea2e8a9 |
1887 | # endif |
066ef5b5 |
1888 | # include "intrpvar.h" |
1889 | # ifndef USE_THREADS |
1890 | # include "thrdvar.h" |
1891 | # endif |
1892 | # undef PERLVAR |
51371543 |
1893 | # undef PERLVARA |
066ef5b5 |
1894 | # undef PERLVARI |
1895 | # undef PERLVARIC |
3967c732 |
1896 | # else |
066ef5b5 |
1897 | # define PERLVAR(var,type) |
51371543 |
1898 | # define PERLVARA(var,n,type) |
533c011a |
1899 | # define PERLVARI(var,type,init) PL_##var = init; |
1900 | # define PERLVARIC(var,type,init) PL_##var = init; |
066ef5b5 |
1901 | # include "intrpvar.h" |
1902 | # ifndef USE_THREADS |
1903 | # include "thrdvar.h" |
1904 | # endif |
1905 | # undef PERLVAR |
51371543 |
1906 | # undef PERLVARA |
066ef5b5 |
1907 | # undef PERLVARI |
1908 | # undef PERLVARIC |
1909 | # endif |
cb68f92d |
1910 | #endif |
1911 | |
cb68f92d |
1912 | } |
1913 | |
76e3520e |
1914 | STATIC void |
cea2e8a9 |
1915 | S_init_main_stash(pTHX) |
79072805 |
1916 | { |
11343788 |
1917 | dTHR; |
463ee0b2 |
1918 | GV *gv; |
6e72f9df |
1919 | |
1920 | /* Note that strtab is a rather special HV. Assumptions are made |
1921 | about not iterating on it, and not adding tie magic to it. |
1922 | It is properly deallocated in perl_destruct() */ |
3280af22 |
1923 | PL_strtab = newHV(); |
5f08fbcd |
1924 | #ifdef USE_THREADS |
1925 | MUTEX_INIT(&PL_strtab_mutex); |
1926 | #endif |
3280af22 |
1927 | HvSHAREKEYS_off(PL_strtab); /* mandatory */ |
1928 | hv_ksplit(PL_strtab, 512); |
6e72f9df |
1929 | |
3280af22 |
1930 | PL_curstash = PL_defstash = newHV(); |
79cb57f6 |
1931 | PL_curstname = newSVpvn("main",4); |
adbc6bb1 |
1932 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
1933 | SvREFCNT_dec(GvHV(gv)); |
3280af22 |
1934 | GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash); |
463ee0b2 |
1935 | SvREADONLY_on(gv); |
3280af22 |
1936 | HvNAME(PL_defstash) = savepv("main"); |
1937 | PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); |
1938 | GvMULTI_on(PL_incgv); |
1939 | PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */ |
1940 | GvMULTI_on(PL_hintgv); |
1941 | PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV); |
1942 | PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); |
1943 | GvMULTI_on(PL_errgv); |
1944 | PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */ |
1945 | GvMULTI_on(PL_replgv); |
cea2e8a9 |
1946 | (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */ |
38a03e6e |
1947 | sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */ |
1948 | sv_setpvn(ERRSV, "", 0); |
3280af22 |
1949 | PL_curstash = PL_defstash; |
1950 | PL_compiling.cop_stash = PL_defstash; |
1951 | PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); |
1952 | PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV)); |
4633a7c4 |
1953 | /* We must init $/ before switches are processed. */ |
864dbfa3 |
1954 | sv_setpvn(get_sv("/", TRUE), "\n", 1); |
79072805 |
1955 | } |
1956 | |
76e3520e |
1957 | STATIC void |
cea2e8a9 |
1958 | S_open_script(pTHX_ char *scriptname, bool dosearch, SV *sv, int *fdscript) |
79072805 |
1959 | { |
0f15f207 |
1960 | dTHR; |
79072805 |
1961 | register char *s; |
2a92aaa0 |
1962 | |
6c4ab083 |
1963 | *fdscript = -1; |
79072805 |
1964 | |
3280af22 |
1965 | if (PL_e_script) { |
1966 | PL_origfilename = savepv("-e"); |
96436eeb |
1967 | } |
6c4ab083 |
1968 | else { |
1969 | /* if find_script() returns, it returns a malloc()-ed value */ |
3280af22 |
1970 | PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1); |
6c4ab083 |
1971 | |
1972 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { |
1973 | char *s = scriptname + 8; |
1974 | *fdscript = atoi(s); |
1975 | while (isDIGIT(*s)) |
1976 | s++; |
1977 | if (*s) { |
1978 | scriptname = savepv(s + 1); |
3280af22 |
1979 | Safefree(PL_origfilename); |
1980 | PL_origfilename = scriptname; |
6c4ab083 |
1981 | } |
1982 | } |
1983 | } |
1984 | |
3280af22 |
1985 | PL_curcop->cop_filegv = gv_fetchfile(PL_origfilename); |
1986 | if (strEQ(PL_origfilename,"-")) |
79072805 |
1987 | scriptname = ""; |
01f988be |
1988 | if (*fdscript >= 0) { |
3280af22 |
1989 | PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE); |
96436eeb |
1990 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
3280af22 |
1991 | if (PL_rsfp) |
1992 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */ |
96436eeb |
1993 | #endif |
1994 | } |
3280af22 |
1995 | else if (PL_preprocess) { |
46fc3d4c |
1996 | char *cpp_cfg = CPPSTDIN; |
79cb57f6 |
1997 | SV *cpp = newSVpvn("",0); |
46fc3d4c |
1998 | SV *cmd = NEWSV(0,0); |
1999 | |
2000 | if (strEQ(cpp_cfg, "cppstdin")) |
cea2e8a9 |
2001 | Perl_sv_catpvf(aTHX_ cpp, "%s/", BIN_EXP); |
46fc3d4c |
2002 | sv_catpv(cpp, cpp_cfg); |
79072805 |
2003 | |
79072805 |
2004 | sv_catpv(sv,"-I"); |
fed7345c |
2005 | sv_catpv(sv,PRIVLIB_EXP); |
46fc3d4c |
2006 | |
79072805 |
2007 | #ifdef MSDOS |
cea2e8a9 |
2008 | Perl_sv_setpvf(aTHX_ cmd, "\ |
79072805 |
2009 | sed %s -e \"/^[^#]/b\" \ |
2010 | -e \"/^#[ ]*include[ ]/b\" \ |
2011 | -e \"/^#[ ]*define[ ]/b\" \ |
2012 | -e \"/^#[ ]*if[ ]/b\" \ |
2013 | -e \"/^#[ ]*ifdef[ ]/b\" \ |
2014 | -e \"/^#[ ]*ifndef[ ]/b\" \ |
2015 | -e \"/^#[ ]*else/b\" \ |
2016 | -e \"/^#[ ]*elif[ ]/b\" \ |
2017 | -e \"/^#[ ]*undef[ ]/b\" \ |
2018 | -e \"/^#[ ]*endif/b\" \ |
2019 | -e \"s/^#.*//\" \ |
fc36a67e |
2020 | %s | %_ -C %_ %s", |
6b88bc9c |
2021 | (PL_doextract ? "-e \"1,/^#/d\n\"" : ""), |
79072805 |
2022 | #else |
092bebab |
2023 | # ifdef __OPEN_VM |
cea2e8a9 |
2024 | Perl_sv_setpvf(aTHX_ cmd, "\ |
092bebab |
2025 | %s %s -e '/^[^#]/b' \ |
2026 | -e '/^#[ ]*include[ ]/b' \ |
2027 | -e '/^#[ ]*define[ ]/b' \ |
2028 | -e '/^#[ ]*if[ ]/b' \ |
2029 | -e '/^#[ ]*ifdef[ ]/b' \ |
2030 | -e '/^#[ ]*ifndef[ ]/b' \ |
2031 | -e '/^#[ ]*else/b' \ |
2032 | -e '/^#[ ]*elif[ ]/b' \ |
2033 | -e '/^#[ ]*undef[ ]/b' \ |
2034 | -e '/^#[ ]*endif/b' \ |
2035 | -e 's/^[ ]*#.*//' \ |
2036 | %s | %_ %_ %s", |
2037 | # else |
cea2e8a9 |
2038 | Perl_sv_setpvf(aTHX_ cmd, "\ |
79072805 |
2039 | %s %s -e '/^[^#]/b' \ |
2040 | -e '/^#[ ]*include[ ]/b' \ |
2041 | -e '/^#[ ]*define[ ]/b' \ |
2042 | -e '/^#[ ]*if[ ]/b' \ |
2043 | -e '/^#[ ]*ifdef[ ]/b' \ |
2044 | -e '/^#[ ]*ifndef[ ]/b' \ |
2045 | -e '/^#[ ]*else/b' \ |
2046 | -e '/^#[ ]*elif[ ]/b' \ |
2047 | -e '/^#[ ]*undef[ ]/b' \ |
2048 | -e '/^#[ ]*endif/b' \ |
2049 | -e 's/^[ ]*#.*//' \ |
fc36a67e |
2050 | %s | %_ -C %_ %s", |
092bebab |
2051 | # endif |
79072805 |
2052 | #ifdef LOC_SED |
2053 | LOC_SED, |
2054 | #else |
2055 | "sed", |
2056 | #endif |
3280af22 |
2057 | (PL_doextract ? "-e '1,/^#/d\n'" : ""), |
79072805 |
2058 | #endif |
46fc3d4c |
2059 | scriptname, cpp, sv, CPPMINUS); |
3280af22 |
2060 | PL_doextract = FALSE; |
79072805 |
2061 | #ifdef IAMSUID /* actually, this is caught earlier */ |
b28d0864 |
2062 | if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */ |
79072805 |
2063 | #ifdef HAS_SETEUID |
b28d0864 |
2064 | (void)seteuid(PL_uid); /* musn't stay setuid root */ |
79072805 |
2065 | #else |
2066 | #ifdef HAS_SETREUID |
b28d0864 |
2067 | (void)setreuid((Uid_t)-1, PL_uid); |
85e6fe83 |
2068 | #else |
2069 | #ifdef HAS_SETRESUID |
b28d0864 |
2070 | (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1); |
79072805 |
2071 | #else |
b28d0864 |
2072 | PerlProc_setuid(PL_uid); |
79072805 |
2073 | #endif |
2074 | #endif |
85e6fe83 |
2075 | #endif |
b28d0864 |
2076 | if (PerlProc_geteuid() != PL_uid) |
cea2e8a9 |
2077 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
79072805 |
2078 | } |
2079 | #endif /* IAMSUID */ |
3280af22 |
2080 | PL_rsfp = PerlProc_popen(SvPVX(cmd), "r"); |
46fc3d4c |
2081 | SvREFCNT_dec(cmd); |
2082 | SvREFCNT_dec(cpp); |
79072805 |
2083 | } |
2084 | else if (!*scriptname) { |
bbce6d69 |
2085 | forbid_setid("program input from stdin"); |
3280af22 |
2086 | PL_rsfp = PerlIO_stdin(); |
79072805 |
2087 | } |
96436eeb |
2088 | else { |
3280af22 |
2089 | PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE); |
96436eeb |
2090 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
3280af22 |
2091 | if (PL_rsfp) |
2092 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */ |
96436eeb |
2093 | #endif |
2094 | } |
3280af22 |
2095 | if (!PL_rsfp) { |
13281fa4 |
2096 | #ifdef DOSUID |
a687059c |
2097 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
6b88bc9c |
2098 | if (PL_euid && |
2099 | PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&PL_statbuf) >= 0 && |
2100 | PL_statbuf.st_mode & (S_ISUID|S_ISGID)) |
2101 | { |
46fc3d4c |
2102 | /* try again */ |
cea2e8a9 |
2103 | PerlProc_execv(Perl_form(aTHX_ "%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv); |
2104 | Perl_croak(aTHX_ "Can't do setuid\n"); |
13281fa4 |
2105 | } |
2106 | #endif |
2107 | #endif |
cea2e8a9 |
2108 | Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n", |
3280af22 |
2109 | SvPVX(GvSV(PL_curcop->cop_filegv)), Strerror(errno)); |
13281fa4 |
2110 | } |
79072805 |
2111 | } |
8d063cd8 |
2112 | |
7b89560d |
2113 | /* Mention |
2114 | * I_SYSSTATVFS HAS_FSTATVFS |
2115 | * I_SYSMOUNT |
2116 | * I_STATFS HAS_FSTATFS |
2117 | * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT |
2118 | * here so that metaconfig picks them up. */ |
2119 | |
104d25b7 |
2120 | #ifdef IAMSUID |
864dbfa3 |
2121 | STATIC int |
cea2e8a9 |
2122 | S_fd_on_nosuid_fs(pTHX_ int fd) |
104d25b7 |
2123 | { |
2124 | int on_nosuid = 0; |
2125 | int check_okay = 0; |
2126 | /* |
2127 | * Preferred order: fstatvfs(), fstatfs(), getmntent(). |
2128 | * fstatvfs() is UNIX98. |
2129 | * fstatfs() is BSD. |
2130 | * getmntent() is O(number-of-mounted-filesystems) and can hang. |
2131 | */ |
2132 | |
2133 | # ifdef HAS_FSTATVFS |
2134 | struct statvfs stfs; |
2135 | check_okay = fstatvfs(fd, &stfs) == 0; |
2136 | on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID); |
2137 | # else |
2138 | # if defined(HAS_FSTATFS) && defined(HAS_STRUCT_STATFS_FLAGS) |
2139 | struct statfs stfs; |
2140 | check_okay = fstatfs(fd, &stfs) == 0; |
2141 | # undef PERL_MOUNT_NOSUID |
2142 | # if !defined(PERL_MOUNT_NOSUID) && defined(MNT_NOSUID) |
2143 | # define PERL_MOUNT_NOSUID MNT_NOSUID |
2144 | # endif |
2145 | # if !defined(PERL_MOUNT_NOSUID) && defined(MS_NOSUID) |
2146 | # define PERL_MOUNT_NOSUID MS_NOSUID |
2147 | # endif |
2148 | # if !defined(PERL_MOUNT_NOSUID) && defined(M_NOSUID) |
2149 | # define PERL_MOUNT_NOSUID M_NOSUID |
2150 | # endif |
2151 | # ifdef PERL_MOUNT_NOSUID |
2152 | on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID); |
2153 | # endif |
2154 | # else |
32b3cf08 |
2155 | # if defined(HAS_GETMNTENT) && defined(HAS_HASMNTOPT) && defined(MNTOPT_NOSUID) |
104d25b7 |
2156 | FILE *mtab = fopen("/etc/mtab", "r"); |
2157 | struct mntent *entry; |
2158 | struct stat stb, fsb; |
2159 | |
2160 | if (mtab && (fstat(fd, &stb) == 0)) { |
2161 | while (entry = getmntent(mtab)) { |
2162 | if (stat(entry->mnt_dir, &fsb) == 0 |
2163 | && fsb.st_dev == stb.st_dev) |
2164 | { |
2165 | /* found the filesystem */ |
2166 | check_okay = 1; |
2167 | if (hasmntopt(entry, MNTOPT_NOSUID)) |
2168 | on_nosuid = 1; |
2169 | break; |
2170 | } /* A single fs may well fail its stat(). */ |
2171 | } |
2172 | } |
2173 | if (mtab) |
2174 | fclose(mtab); |
2175 | # endif /* mntent */ |
2176 | # endif /* statfs */ |
2177 | # endif /* statvfs */ |
2178 | if (!check_okay) |
cea2e8a9 |
2179 | Perl_croak(aTHX_ "Can't check filesystem of script \"%s\"", PL_origfilename); |
104d25b7 |
2180 | return on_nosuid; |
2181 | } |
2182 | #endif /* IAMSUID */ |
2183 | |
76e3520e |
2184 | STATIC void |
cea2e8a9 |
2185 | S_validate_suid(pTHX_ char *validarg, char *scriptname, int fdscript) |
79072805 |
2186 | { |
96436eeb |
2187 | int which; |
2188 | |
13281fa4 |
2189 | /* do we need to emulate setuid on scripts? */ |
2190 | |
2191 | /* This code is for those BSD systems that have setuid #! scripts disabled |
2192 | * in the kernel because of a security problem. Merely defining DOSUID |
2193 | * in perl will not fix that problem, but if you have disabled setuid |
2194 | * scripts in the kernel, this will attempt to emulate setuid and setgid |
2195 | * on scripts that have those now-otherwise-useless bits set. The setuid |
27e2fb84 |
2196 | * root version must be called suidperl or sperlN.NNN. If regular perl |
2197 | * discovers that it has opened a setuid script, it calls suidperl with |
2198 | * the same argv that it had. If suidperl finds that the script it has |
2199 | * just opened is NOT setuid root, it sets the effective uid back to the |
2200 | * uid. We don't just make perl setuid root because that loses the |
2201 | * effective uid we had before invoking perl, if it was different from the |
2202 | * uid. |
13281fa4 |
2203 | * |
2204 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must |
2205 | * be defined in suidperl only. suidperl must be setuid root. The |
2206 | * Configure script will set this up for you if you want it. |
2207 | */ |
a687059c |
2208 | |
13281fa4 |
2209 | #ifdef DOSUID |
ea0efc06 |
2210 | dTHR; |
6e72f9df |
2211 | char *s, *s2; |
a0d0e21e |
2212 | |
b28d0864 |
2213 | if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */ |
cea2e8a9 |
2214 | Perl_croak(aTHX_ "Can't stat script \"%s\"",PL_origfilename); |
b28d0864 |
2215 | if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 |
2216 | I32 len; |
2d8e6c8d |
2217 | STRLEN n_a; |
13281fa4 |
2218 | |
a687059c |
2219 | #ifdef IAMSUID |
fe14fcc3 |
2220 | #ifndef HAS_SETREUID |
a687059c |
2221 | /* On this access check to make sure the directories are readable, |
2222 | * there is actually a small window that the user could use to make |
2223 | * filename point to an accessible directory. So there is a faint |
2224 | * chance that someone could execute a setuid script down in a |
2225 | * non-accessible directory. I don't know what to do about that. |
2226 | * But I don't think it's too important. The manual lies when |
2227 | * it says access() is useful in setuid programs. |
2228 | */ |
6b88bc9c |
2229 | if (PerlLIO_access(SvPVX(GvSV(PL_curcop->cop_filegv)),1)) /*double check*/ |
cea2e8a9 |
2230 | Perl_croak(aTHX_ "Permission denied"); |
a687059c |
2231 | #else |
2232 | /* If we can swap euid and uid, then we can determine access rights |
2233 | * with a simple stat of the file, and then compare device and |
2234 | * inode to make sure we did stat() on the same file we opened. |
2235 | * Then we just have to make sure he or she can execute it. |
2236 | */ |
2237 | { |
2238 | struct stat tmpstatbuf; |
2239 | |
85e6fe83 |
2240 | if ( |
2241 | #ifdef HAS_SETREUID |
b28d0864 |
2242 | setreuid(PL_euid,PL_uid) < 0 |
a0d0e21e |
2243 | #else |
2244 | # if HAS_SETRESUID |
b28d0864 |
2245 | setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0 |
a0d0e21e |
2246 | # endif |
85e6fe83 |
2247 | #endif |
b28d0864 |
2248 | || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid) |
cea2e8a9 |
2249 | Perl_croak(aTHX_ "Can't swap uid and euid"); /* really paranoid */ |
6b88bc9c |
2250 | if (PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&tmpstatbuf) < 0) |
cea2e8a9 |
2251 | Perl_croak(aTHX_ "Permission denied"); /* testing full pathname here */ |
2bb3463c |
2252 | #if defined(IAMSUID) && !defined(NO_NOSUID_CHECK) |
104d25b7 |
2253 | if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp))) |
cea2e8a9 |
2254 | Perl_croak(aTHX_ "Permission denied"); |
104d25b7 |
2255 | #endif |
b28d0864 |
2256 | if (tmpstatbuf.st_dev != PL_statbuf.st_dev || |
2257 | tmpstatbuf.st_ino != PL_statbuf.st_ino) { |
2258 | (void)PerlIO_close(PL_rsfp); |
2259 | if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */ |
2260 | PerlIO_printf(PL_rsfp, |
ff0cee69 |
2261 | "User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\ |
2262 | (Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n", |
b28d0864 |
2263 | (long)PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino, |
2264 | (long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino, |
6b88bc9c |
2265 | SvPVX(GvSV(PL_curcop->cop_filegv)), |
b28d0864 |
2266 | (long)PL_statbuf.st_uid, (long)PL_statbuf.st_gid); |
2267 | (void)PerlProc_pclose(PL_rsfp); |
a687059c |
2268 | } |
cea2e8a9 |
2269 | Perl_croak(aTHX_ "Permission denied\n"); |
a687059c |
2270 | } |
85e6fe83 |
2271 | if ( |
2272 | #ifdef HAS_SETREUID |
b28d0864 |
2273 | setreuid(PL_uid,PL_euid) < 0 |
a0d0e21e |
2274 | #else |
2275 | # if defined(HAS_SETRESUID) |
b28d0864 |
2276 | setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0 |
a0d0e21e |
2277 | # endif |
85e6fe83 |
2278 | #endif |
b28d0864 |
2279 | || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid) |
cea2e8a9 |
2280 | Perl_croak(aTHX_ "Can't reswap uid and euid"); |
b28d0864 |
2281 | if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */ |
cea2e8a9 |
2282 | Perl_croak(aTHX_ "Permission denied\n"); |
a687059c |
2283 | } |
fe14fcc3 |
2284 | #endif /* HAS_SETREUID */ |
a687059c |
2285 | #endif /* IAMSUID */ |
2286 | |
b28d0864 |
2287 | if (!S_ISREG(PL_statbuf.st_mode)) |
cea2e8a9 |
2288 | Perl_croak(aTHX_ "Permission denied"); |
b28d0864 |
2289 | if (PL_statbuf.st_mode & S_IWOTH) |
cea2e8a9 |
2290 | Perl_croak(aTHX_ "Setuid/gid script is writable by world"); |
6b88bc9c |
2291 | PL_doswitches = FALSE; /* -s is insecure in suid */ |
2292 | PL_curcop->cop_line++; |
2293 | if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch || |
2d8e6c8d |
2294 | strnNE(SvPV(PL_linestr,n_a),"#!",2) ) /* required even on Sys V */ |
cea2e8a9 |
2295 | Perl_croak(aTHX_ "No #! line"); |
2d8e6c8d |
2296 | s = SvPV(PL_linestr,n_a)+2; |
663a0e37 |
2297 | if (*s == ' ') s++; |
45d8adaa |
2298 | while (!isSPACE(*s)) s++; |
2d8e6c8d |
2299 | for (s2 = s; (s2 > SvPV(PL_linestr,n_a)+2 && |
6e72f9df |
2300 | (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ; |
2301 | if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ |
cea2e8a9 |
2302 | Perl_croak(aTHX_ "Not a perl script"); |
a687059c |
2303 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 |
2304 | /* |
2305 | * #! arg must be what we saw above. They can invoke it by |
2306 | * mentioning suidperl explicitly, but they may not add any strange |
2307 | * arguments beyond what #! says if they do invoke suidperl that way. |
2308 | */ |
2309 | len = strlen(validarg); |
2310 | if (strEQ(validarg," PHOOEY ") || |
45d8adaa |
2311 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
cea2e8a9 |
2312 | Perl_croak(aTHX_ "Args must match #! line"); |
a687059c |
2313 | |
2314 | #ifndef IAMSUID |
b28d0864 |
2315 | if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) && |
2316 | PL_euid == PL_statbuf.st_uid) |
2317 | if (!PL_do_undump) |
cea2e8a9 |
2318 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c |
2319 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
2320 | #endif /* IAMSUID */ |
13281fa4 |
2321 | |
b28d0864 |
2322 | if (PL_euid) { /* oops, we're not the setuid root perl */ |
2323 | (void)PerlIO_close(PL_rsfp); |
13281fa4 |
2324 | #ifndef IAMSUID |
46fc3d4c |
2325 | /* try again */ |
cea2e8a9 |
2326 | PerlProc_execv(Perl_form(aTHX_ "%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv); |
13281fa4 |
2327 | #endif |
cea2e8a9 |
2328 | Perl_croak(aTHX_ "Can't do setuid\n"); |
13281fa4 |
2329 | } |
2330 | |
b28d0864 |
2331 | if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) { |
fe14fcc3 |
2332 | #ifdef HAS_SETEGID |
b28d0864 |
2333 | (void)setegid(PL_statbuf.st_gid); |
a687059c |
2334 | #else |
fe14fcc3 |
2335 | #ifdef HAS_SETREGID |
b28d0864 |
2336 | (void)setregid((Gid_t)-1,PL_statbuf.st_gid); |
85e6fe83 |
2337 | #else |
2338 | #ifdef HAS_SETRESGID |
b28d0864 |
2339 | (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1); |
a687059c |
2340 | #else |
b28d0864 |
2341 | PerlProc_setgid(PL_statbuf.st_gid); |
a687059c |
2342 | #endif |
2343 | #endif |
85e6fe83 |
2344 | #endif |
b28d0864 |
2345 | if (PerlProc_getegid() != PL_statbuf.st_gid) |
cea2e8a9 |
2346 | Perl_croak(aTHX_ "Can't do setegid!\n"); |
83025b21 |
2347 | } |
b28d0864 |
2348 | if (PL_statbuf.st_mode & S_ISUID) { |
2349 | if (PL_statbuf.st_uid != PL_euid) |
fe14fcc3 |
2350 | #ifdef HAS_SETEUID |
b28d0864 |
2351 | (void)seteuid(PL_statbuf.st_uid); /* all that for this */ |
a687059c |
2352 | #else |
fe14fcc3 |
2353 | #ifdef HAS_SETREUID |
b28d0864 |
2354 | (void)setreuid((Uid_t)-1,PL_statbuf.st_uid); |
85e6fe83 |
2355 | #else |
2356 | #ifdef HAS_SETRESUID |
b28d0864 |
2357 | (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1); |
a687059c |
2358 | #else |
b28d0864 |
2359 | PerlProc_setuid(PL_statbuf.st_uid); |
a687059c |
2360 | #endif |
2361 | #endif |
85e6fe83 |
2362 | #endif |
b28d0864 |
2363 | if (PerlProc_geteuid() != PL_statbuf.st_uid) |
cea2e8a9 |
2364 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
a687059c |
2365 | } |
b28d0864 |
2366 | else if (PL_uid) { /* oops, mustn't run as root */ |
fe14fcc3 |
2367 | #ifdef HAS_SETEUID |
b28d0864 |
2368 | (void)seteuid((Uid_t)PL_uid); |
a687059c |
2369 | #else |
fe14fcc3 |
2370 | #ifdef HAS_SETREUID |
b28d0864 |
2371 | (void)setreuid((Uid_t)-1,(Uid_t)PL_uid); |
a687059c |
2372 | #else |
85e6fe83 |
2373 | #ifdef HAS_SETRESUID |
b28d0864 |
2374 | (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1); |
85e6fe83 |
2375 | #else |
b28d0864 |
2376 | PerlProc_setuid((Uid_t)PL_uid); |
85e6fe83 |
2377 | #endif |
a687059c |
2378 | #endif |
2379 | #endif |
b28d0864 |
2380 | if (PerlProc_geteuid() != PL_uid) |
cea2e8a9 |
2381 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
83025b21 |
2382 | } |
748a9306 |
2383 | init_ids(); |
b28d0864 |
2384 | if (!cando(S_IXUSR,TRUE,&PL_statbuf)) |
cea2e8a9 |
2385 | Perl_croak(aTHX_ "Permission denied\n"); /* they can't do this */ |
13281fa4 |
2386 | } |
2387 | #ifdef IAMSUID |
6b88bc9c |
2388 | else if (PL_preprocess) |
cea2e8a9 |
2389 | Perl_croak(aTHX_ "-P not allowed for setuid/setgid script\n"); |
96436eeb |
2390 | else if (fdscript >= 0) |
cea2e8a9 |
2391 | Perl_croak(aTHX_ "fd script not allowed in suidperl\n"); |
13281fa4 |
2392 | else |
cea2e8a9 |
2393 | Perl_croak(aTHX_ "Script is not setuid/setgid in suidperl\n"); |
96436eeb |
2394 | |
2395 | /* We absolutely must clear out any saved ids here, so we */ |
2396 | /* exec the real perl, substituting fd script for scriptname. */ |
2397 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ |
b28d0864 |
2398 | PerlIO_rewind(PL_rsfp); |
2399 | PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */ |
6b88bc9c |
2400 | for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; |
2401 | if (!PL_origargv[which]) |
cea2e8a9 |
2402 | Perl_croak(aTHX_ "Permission denied"); |
2403 | PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s", |
6b88bc9c |
2404 | PerlIO_fileno(PL_rsfp), PL_origargv[which])); |
96436eeb |
2405 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
b28d0864 |
2406 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb |
2407 | #endif |
cea2e8a9 |
2408 | PerlProc_execv(Perl_form(aTHX_ "%s/perl%s", BIN_EXP, PL_patchlevel), PL_origargv);/* try again */ |
2409 | Perl_croak(aTHX_ "Can't do setuid\n"); |
13281fa4 |
2410 | #endif /* IAMSUID */ |
a687059c |
2411 | #else /* !DOSUID */ |
3280af22 |
2412 | if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */ |
a687059c |
2413 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW |
96827780 |
2414 | dTHR; |
b28d0864 |
2415 | PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */ |
2416 | if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID) |
a687059c |
2417 | || |
b28d0864 |
2418 | (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID) |
a687059c |
2419 | ) |
b28d0864 |
2420 | if (!PL_do_undump) |
cea2e8a9 |
2421 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c |
2422 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
2423 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ |
2424 | /* not set-id, must be wrapped */ |
a687059c |
2425 | } |
13281fa4 |
2426 | #endif /* DOSUID */ |
79072805 |
2427 | } |
13281fa4 |
2428 | |
76e3520e |
2429 | STATIC void |
cea2e8a9 |
2430 | S_find_beginning(pTHX) |
79072805 |
2431 | { |
6e72f9df |
2432 | register char *s, *s2; |
33b78306 |
2433 | |
2434 | /* skip forward in input to the real script? */ |
2435 | |
bbce6d69 |
2436 | forbid_setid("-x"); |
3280af22 |
2437 | while (PL_doextract) { |
2438 | if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch) |
cea2e8a9 |
2439 | Perl_croak(aTHX_ "No Perl script found in input\n"); |
6e72f9df |
2440 | if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) { |
3280af22 |
2441 | PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */ |
2442 | PL_doextract = FALSE; |
6e72f9df |
2443 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
2444 | s2 = s; |
2445 | while (*s == ' ' || *s == '\t') s++; |
2446 | if (*s++ == '-') { |
2447 | while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--; |
2448 | if (strnEQ(s2-4,"perl",4)) |
2449 | /*SUPPRESS 530*/ |
2450 | while (s = moreswitches(s)) ; |
33b78306 |
2451 | } |
3280af22 |
2452 | if (PL_cddir && PerlDir_chdir(PL_cddir) < 0) |
cea2e8a9 |
2453 | Perl_croak(aTHX_ "Can't chdir to %s",PL_cddir); |
83025b21 |
2454 | } |
2455 | } |
2456 | } |
2457 | |
afe37c7d |
2458 | |
76e3520e |
2459 | STATIC void |
cea2e8a9 |
2460 | S_init_ids(pTHX) |
352d5a3a |
2461 | { |
3280af22 |
2462 | PL_uid = (int)PerlProc_getuid(); |
2463 | PL_euid = (int)PerlProc_geteuid(); |
2464 | PL_gid = (int)PerlProc_getgid(); |
2465 | PL_egid = (int)PerlProc_getegid(); |
748a9306 |
2466 | #ifdef VMS |
b28d0864 |
2467 | PL_uid |= PL_gid << 16; |
2468 | PL_euid |= PL_egid << 16; |
748a9306 |
2469 | #endif |
3280af22 |
2470 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
748a9306 |
2471 | } |
79072805 |
2472 | |
76e3520e |
2473 | STATIC void |
cea2e8a9 |
2474 | S_forbid_setid(pTHX_ char *s) |
bbce6d69 |
2475 | { |
3280af22 |
2476 | if (PL_euid != PL_uid) |
cea2e8a9 |
2477 | Perl_croak(aTHX_ "No %s allowed while running setuid", s); |
3280af22 |
2478 | if (PL_egid != PL_gid) |
cea2e8a9 |
2479 | Perl_croak(aTHX_ "No %s allowed while running setgid", s); |
bbce6d69 |
2480 | } |
2481 | |
1ee4443e |
2482 | void |
2483 | Perl_init_debugger(pTHX) |
748a9306 |
2484 | { |
11343788 |
2485 | dTHR; |
1ee4443e |
2486 | HV *ostash = PL_curstash; |
2487 | |
3280af22 |
2488 | PL_curstash = PL_debstash; |
2489 | PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); |
2490 | AvREAL_off(PL_dbargs); |
2491 | PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); |
2492 | PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); |
2493 | PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); |
1ee4443e |
2494 | sv_upgrade(GvSV(PL_DBsub), SVt_IV); /* IVX accessed if PERLDB_SUB_NN */ |
3280af22 |
2495 | PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); |
2496 | sv_setiv(PL_DBsingle, 0); |
2497 | PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); |
2498 | sv_setiv(PL_DBtrace, 0); |
2499 | PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); |
2500 | sv_setiv(PL_DBsignal, 0); |
1ee4443e |
2501 | PL_curstash = ostash; |
352d5a3a |
2502 | } |
2503 | |
2ce36478 |
2504 | #ifndef STRESS_REALLOC |
2505 | #define REASONABLE(size) (size) |
2506 | #else |
2507 | #define REASONABLE(size) (1) /* unreasonable */ |
2508 | #endif |
2509 | |
11343788 |
2510 | void |
cea2e8a9 |
2511 | Perl_init_stacks(pTHX) |
79072805 |
2512 | { |
e336de0d |
2513 | /* start with 128-item stack and 8K cxstack */ |
3280af22 |
2514 | PL_curstackinfo = new_stackinfo(REASONABLE(128), |
e336de0d |
2515 | REASONABLE(8192/sizeof(PERL_CONTEXT) - 1)); |
3280af22 |
2516 | PL_curstackinfo->si_type = PERLSI_MAIN; |
2517 | PL_curstack = PL_curstackinfo->si_stack; |
2518 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
79072805 |
2519 | |
3280af22 |
2520 | PL_stack_base = AvARRAY(PL_curstack); |
2521 | PL_stack_sp = PL_stack_base; |
2522 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
8990e307 |
2523 | |
3280af22 |
2524 | New(50,PL_tmps_stack,REASONABLE(128),SV*); |
2525 | PL_tmps_floor = -1; |
2526 | PL_tmps_ix = -1; |
2527 | PL_tmps_max = REASONABLE(128); |
8990e307 |
2528 | |
3280af22 |
2529 | New(54,PL_markstack,REASONABLE(32),I32); |
2530 | PL_markstack_ptr = PL_markstack; |
2531 | PL_markstack_max = PL_markstack + REASONABLE(32); |
79072805 |
2532 | |
e336de0d |
2533 | SET_MARKBASE; |
2534 | |
3280af22 |
2535 | New(54,PL_scopestack,REASONABLE(32),I32); |
2536 | PL_scopestack_ix = 0; |
2537 | PL_scopestack_max = REASONABLE(32); |
79072805 |
2538 | |
3280af22 |
2539 | New(54,PL_savestack,REASONABLE(128),ANY); |
2540 | PL_savestack_ix = 0; |
2541 | PL_savestack_max = REASONABLE(128); |
79072805 |
2542 | |
3280af22 |
2543 | New(54,PL_retstack,REASONABLE(16),OP*); |
2544 | PL_retstack_ix = 0; |
2545 | PL_retstack_max = REASONABLE(16); |
378cc40b |
2546 | } |
33b78306 |
2547 | |
2ce36478 |
2548 | #undef REASONABLE |
2549 | |
76e3520e |
2550 | STATIC void |
cea2e8a9 |
2551 | S_nuke_stacks(pTHX) |
6e72f9df |
2552 | { |
e858de61 |
2553 | dTHR; |
3280af22 |
2554 | while (PL_curstackinfo->si_next) |
2555 | PL_curstackinfo = PL_curstackinfo->si_next; |
2556 | while (PL_curstackinfo) { |
2557 | PERL_SI *p = PL_curstackinfo->si_prev; |
bac4b2ad |
2558 | /* curstackinfo->si_stack got nuked by sv_free_arenas() */ |
3280af22 |
2559 | Safefree(PL_curstackinfo->si_cxstack); |
2560 | Safefree(PL_curstackinfo); |
2561 | PL_curstackinfo = p; |
e336de0d |
2562 | } |
3280af22 |
2563 | Safefree(PL_tmps_stack); |
2564 | Safefree(PL_markstack); |
2565 | Safefree(PL_scopestack); |
2566 | Safefree(PL_savestack); |
2567 | Safefree(PL_retstack); |
5f05dabc |
2568 | DEBUG( { |
3280af22 |
2569 | Safefree(PL_debname); |
2570 | Safefree(PL_debdelim); |
5f05dabc |
2571 | } ) |
378cc40b |
2572 | } |
33b78306 |
2573 | |
76e3520e |
2574 | #ifndef PERL_OBJECT |
760ac839 |
2575 | static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
76e3520e |
2576 | #endif |
7aa04957 |
2577 | |
76e3520e |
2578 | STATIC void |
cea2e8a9 |
2579 | S_init_lexer(pTHX) |
8990e307 |
2580 | { |
76e3520e |
2581 | #ifdef PERL_OBJECT |
2582 | PerlIO *tmpfp; |
2583 | #endif |
3280af22 |
2584 | tmpfp = PL_rsfp; |
2585 | PL_rsfp = Nullfp; |
2586 | lex_start(PL_linestr); |
2587 | PL_rsfp = tmpfp; |
79cb57f6 |
2588 | PL_subname = newSVpvn("main",4); |
8990e307 |
2589 | } |
2590 | |
76e3520e |
2591 | STATIC void |
cea2e8a9 |
2592 | S_init_predump_symbols(pTHX) |
45d8adaa |
2593 | { |
11343788 |
2594 | dTHR; |
93a17b20 |
2595 | GV *tmpgv; |
a0d0e21e |
2596 | GV *othergv; |
af8c498a |
2597 | IO *io; |
79072805 |
2598 | |
864dbfa3 |
2599 | sv_setpvn(get_sv("\"", TRUE), " ", 1); |
3280af22 |
2600 | PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
2601 | GvMULTI_on(PL_stdingv); |
af8c498a |
2602 | io = GvIOp(PL_stdingv); |
2603 | IoIFP(io) = PerlIO_stdin(); |
adbc6bb1 |
2604 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 |
2605 | GvMULTI_on(tmpgv); |
af8c498a |
2606 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io); |
79072805 |
2607 | |
85e6fe83 |
2608 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 |
2609 | GvMULTI_on(tmpgv); |
af8c498a |
2610 | io = GvIOp(tmpgv); |
2611 | IoOFP(io) = IoIFP(io) = PerlIO_stdout(); |
4633a7c4 |
2612 | setdefout(tmpgv); |
adbc6bb1 |
2613 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 |
2614 | GvMULTI_on(tmpgv); |
af8c498a |
2615 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io); |
79072805 |
2616 | |
a0d0e21e |
2617 | othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
a5f75d66 |
2618 | GvMULTI_on(othergv); |
af8c498a |
2619 | io = GvIOp(othergv); |
2620 | IoOFP(io) = IoIFP(io) = PerlIO_stderr(); |
adbc6bb1 |
2621 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 |
2622 | GvMULTI_on(tmpgv); |
af8c498a |
2623 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io); |
79072805 |
2624 | |
3280af22 |
2625 | PL_statname = NEWSV(66,0); /* last filename we did stat on */ |
ab821d7f |
2626 | |
3280af22 |
2627 | if (!PL_osname) |
2628 | PL_osname = savepv(OSNAME); |
79072805 |
2629 | } |
33b78306 |
2630 | |
76e3520e |
2631 | STATIC void |
cea2e8a9 |
2632 | S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env) |
33b78306 |
2633 | { |
a863c7d1 |
2634 | dTHR; |
79072805 |
2635 | char *s; |
2636 | SV *sv; |
2637 | GV* tmpgv; |
fe14fcc3 |
2638 | |
79072805 |
2639 | argc--,argv++; /* skip name of script */ |
3280af22 |
2640 | if (PL_doswitches) { |
79072805 |
2641 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
2642 | if (!argv[0][1]) |
2643 | break; |
2644 | if (argv[0][1] == '-') { |
2645 | argc--,argv++; |
2646 | break; |
2647 | } |
93a17b20 |
2648 | if (s = strchr(argv[0], '=')) { |
79072805 |
2649 | *s++ = '\0'; |
85e6fe83 |
2650 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 |
2651 | } |
2652 | else |
85e6fe83 |
2653 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 |
2654 | } |
79072805 |
2655 | } |
3280af22 |
2656 | PL_toptarget = NEWSV(0,0); |
2657 | sv_upgrade(PL_toptarget, SVt_PVFM); |
2658 | sv_setpvn(PL_toptarget, "", 0); |
2659 | PL_bodytarget = NEWSV(0,0); |
2660 | sv_upgrade(PL_bodytarget, SVt_PVFM); |
2661 | sv_setpvn(PL_bodytarget, "", 0); |
2662 | PL_formtarget = PL_bodytarget; |
79072805 |
2663 | |
bbce6d69 |
2664 | TAINT; |
85e6fe83 |
2665 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
3280af22 |
2666 | sv_setpv(GvSV(tmpgv),PL_origfilename); |
79072805 |
2667 | magicname("0", "0", 1); |
2668 | } |
85e6fe83 |
2669 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
3280af22 |
2670 | sv_setpv(GvSV(tmpgv),PL_origargv[0]); |
2671 | if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { |
2672 | GvMULTI_on(PL_argvgv); |
2673 | (void)gv_AVadd(PL_argvgv); |
2674 | av_clear(GvAVn(PL_argvgv)); |
79072805 |
2675 | for (; argc > 0; argc--,argv++) { |
3280af22 |
2676 | av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0)); |
79072805 |
2677 | } |
2678 | } |
3280af22 |
2679 | if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 |
2680 | HV *hv; |
3280af22 |
2681 | GvMULTI_on(PL_envgv); |
2682 | hv = GvHVn(PL_envgv); |
2683 | hv_magic(hv, PL_envgv, 'E'); |
4d2c4e07 |
2684 | #if !defined( VMS) && !defined(EPOC) /* VMS doesn't have environ array */ |
4633a7c4 |
2685 | /* Note that if the supplied env parameter is actually a copy |
2686 | of the global environ then it may now point to free'd memory |
2687 | if the environment has been modified since. To avoid this |
2688 | problem we treat env==NULL as meaning 'use the default' |
2689 | */ |
2690 | if (!env) |
2691 | env = environ; |
5aabfad6 |
2692 | if (env != environ) |
79072805 |
2693 | environ[0] = Nullch; |
2694 | for (; *env; env++) { |
93a17b20 |
2695 | if (!(s = strchr(*env,'='))) |
79072805 |
2696 | continue; |
2697 | *s++ = '\0'; |
60ce6247 |
2698 | #if defined(MSDOS) |
137443ea |
2699 | (void)strupr(*env); |
2700 | #endif |
79072805 |
2701 | sv = newSVpv(s--,0); |
2702 | (void)hv_store(hv, *env, s - *env, sv, 0); |
2703 | *s = '='; |
3e3baf6d |
2704 | #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV) |
2705 | /* Sins of the RTL. See note in my_setenv(). */ |
76e3520e |
2706 | (void)PerlEnv_putenv(savepv(*env)); |
3e3baf6d |
2707 | #endif |
fe14fcc3 |
2708 | } |
4550b24a |
2709 | #endif |
2710 | #ifdef DYNAMIC_ENV_FETCH |
2711 | HvNAME(hv) = savepv(ENV_HV_NAME); |
2712 | #endif |
79072805 |
2713 | } |
bbce6d69 |
2714 | TAINT_NOT; |
85e6fe83 |
2715 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
1e422769 |
2716 | sv_setiv(GvSV(tmpgv), (IV)getpid()); |
33b78306 |
2717 | } |
34de22dd |
2718 | |
76e3520e |
2719 | STATIC void |
cea2e8a9 |
2720 | S_init_perllib(pTHX) |
34de22dd |
2721 | { |
85e6fe83 |
2722 | char *s; |
3280af22 |
2723 | if (!PL_tainting) { |
552a7a9b |
2724 | #ifndef VMS |
76e3520e |
2725 | s = PerlEnv_getenv("PERL5LIB"); |
85e6fe83 |
2726 | if (s) |
774d564b |
2727 | incpush(s, TRUE); |
85e6fe83 |
2728 | else |
76e3520e |
2729 | incpush(PerlEnv_getenv("PERLLIB"), FALSE); |
552a7a9b |
2730 | #else /* VMS */ |
2731 | /* Treat PERL5?LIB as a possible search list logical name -- the |
2732 | * "natural" VMS idiom for a Unix path string. We allow each |
2733 | * element to be a set of |-separated directories for compatibility. |
2734 | */ |
2735 | char buf[256]; |
2736 | int idx = 0; |
2737 | if (my_trnlnm("PERL5LIB",buf,0)) |
774d564b |
2738 | do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx)); |
552a7a9b |
2739 | else |
774d564b |
2740 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE); |
552a7a9b |
2741 | #endif /* VMS */ |
85e6fe83 |
2742 | } |
34de22dd |
2743 | |
c90c0ff4 |
2744 | /* Use the ~-expanded versions of APPLLIB (undocumented), |
dfe9444c |
2745 | ARCHLIB PRIVLIB SITEARCH and SITELIB |
df5cef82 |
2746 | */ |
4633a7c4 |
2747 | #ifdef APPLLIB_EXP |
43051805 |
2748 | incpush(APPLLIB_EXP, TRUE); |
16d20bd9 |
2749 | #endif |
4633a7c4 |
2750 | |
fed7345c |
2751 | #ifdef ARCHLIB_EXP |
774d564b |
2752 | incpush(ARCHLIB_EXP, FALSE); |
a0d0e21e |
2753 | #endif |
fed7345c |
2754 | #ifndef PRIVLIB_EXP |
2755 | #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" |
34de22dd |
2756 | #endif |
00dc2f4f |
2757 | #if defined(WIN32) |
2758 | incpush(PRIVLIB_EXP, TRUE); |
2759 | #else |
774d564b |
2760 | incpush(PRIVLIB_EXP, FALSE); |
00dc2f4f |
2761 | #endif |
4633a7c4 |
2762 | |
2763 | #ifdef SITEARCH_EXP |
774d564b |
2764 | incpush(SITEARCH_EXP, FALSE); |
4633a7c4 |
2765 | #endif |
2766 | #ifdef SITELIB_EXP |
00dc2f4f |
2767 | #if defined(WIN32) |
2768 | incpush(SITELIB_EXP, TRUE); |
2769 | #else |
774d564b |
2770 | incpush(SITELIB_EXP, FALSE); |
4633a7c4 |
2771 | #endif |
81c6dfba |
2772 | #endif |
a3635516 |
2773 | #if defined(PERL_VENDORLIB_EXP) |
2774 | #if defined(WIN32) |
265f5c4a |
2775 | incpush(PERL_VENDORLIB_EXP, TRUE); |
a3635516 |
2776 | #else |
2777 | incpush(PERL_VENDORLIB_EXP, FALSE); |
2778 | #endif |
00dc2f4f |
2779 | #endif |
3280af22 |
2780 | if (!PL_tainting) |
774d564b |
2781 | incpush(".", FALSE); |
2782 | } |
2783 | |
2784 | #if defined(DOSISH) |
2785 | # define PERLLIB_SEP ';' |
2786 | #else |
2787 | # if defined(VMS) |
2788 | # define PERLLIB_SEP '|' |
2789 | # else |
2790 | # define PERLLIB_SEP ':' |
2791 | # endif |
2792 | #endif |
2793 | #ifndef PERLLIB_MANGLE |
2794 | # define PERLLIB_MANGLE(s,n) (s) |
2795 | #endif |
2796 | |
76e3520e |
2797 | STATIC void |
cea2e8a9 |
2798 | S_incpush(pTHX_ char *p, int addsubdirs) |
774d564b |
2799 | { |
2800 | SV *subdir = Nullsv; |
774d564b |
2801 | |
2802 | if (!p) |
2803 | return; |
2804 | |
2805 | if (addsubdirs) { |
00db4c45 |
2806 | subdir = sv_newmortal(); |
3280af22 |
2807 | if (!PL_archpat_auto) { |
2808 | STRLEN len = (sizeof(ARCHNAME) + strlen(PL_patchlevel) |
774d564b |
2809 | + sizeof("//auto")); |
3280af22 |
2810 | New(55, PL_archpat_auto, len, char); |
2811 | sprintf(PL_archpat_auto, "/%s/%s/auto", ARCHNAME, PL_patchlevel); |
aa689395 |
2812 | #ifdef VMS |
2813 | for (len = sizeof(ARCHNAME) + 2; |
6b88bc9c |
2814 | PL_archpat_auto[len] != '\0' && PL_archpat_auto[len] != '/'; len++) |
2815 | if (PL_archpat_auto[len] == '.') PL_archpat_auto[len] = '_'; |
aa689395 |
2816 | #endif |
774d564b |
2817 | } |
2818 | } |
2819 | |
2820 | /* Break at all separators */ |
2821 | while (p && *p) { |
8c52afec |
2822 | SV *libdir = NEWSV(55,0); |
774d564b |
2823 | char *s; |
2824 | |
2825 | /* skip any consecutive separators */ |
2826 | while ( *p == PERLLIB_SEP ) { |
2827 | /* Uncomment the next line for PATH semantics */ |
79cb57f6 |
2828 | /* av_push(GvAVn(PL_incgv), newSVpvn(".", 1)); */ |
774d564b |
2829 | p++; |
2830 | } |
2831 | |
2832 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { |
2833 | sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)), |
2834 | (STRLEN)(s - p)); |
2835 | p = s + 1; |
2836 | } |
2837 | else { |
2838 | sv_setpv(libdir, PERLLIB_MANGLE(p, 0)); |
2839 | p = Nullch; /* break out */ |
2840 | } |
2841 | |
2842 | /* |
2843 | * BEFORE pushing libdir onto @INC we may first push version- and |
2844 | * archname-specific sub-directories. |
2845 | */ |
2846 | if (addsubdirs) { |
2847 | struct stat tmpstatbuf; |
aa689395 |
2848 | #ifdef VMS |
2849 | char *unix; |
2850 | STRLEN len; |
774d564b |
2851 | |
2d8e6c8d |
2852 | if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) { |
aa689395 |
2853 | len = strlen(unix); |
2854 | while (unix[len-1] == '/') len--; /* Cosmetic */ |
2855 | sv_usepvn(libdir,unix,len); |
2856 | } |
2857 | else |
2858 | PerlIO_printf(PerlIO_stderr(), |
2859 | "Failed to unixify @INC element \"%s\"\n", |
2d8e6c8d |
2860 | SvPV(libdir,len)); |
aa689395 |
2861 | #endif |
4fdae800 |
2862 | /* .../archname/version if -d .../archname/version/auto */ |
774d564b |
2863 | sv_setsv(subdir, libdir); |
3280af22 |
2864 | sv_catpv(subdir, PL_archpat_auto); |
76e3520e |
2865 | if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 && |
774d564b |
2866 | S_ISDIR(tmpstatbuf.st_mode)) |
3280af22 |
2867 | av_push(GvAVn(PL_incgv), |
79cb57f6 |
2868 | newSVpvn(SvPVX(subdir), SvCUR(subdir) - sizeof "auto")); |
774d564b |
2869 | |
4fdae800 |
2870 | /* .../archname if -d .../archname/auto */ |
774d564b |
2871 | sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME), |
3280af22 |
2872 | strlen(PL_patchlevel) + 1, "", 0); |
76e3520e |
2873 | if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 && |
774d564b |
2874 | S_ISDIR(tmpstatbuf.st_mode)) |
3280af22 |
2875 | av_push(GvAVn(PL_incgv), |
79cb57f6 |
2876 | newSVpvn(SvPVX(subdir), SvCUR(subdir) - sizeof "auto")); |
774d564b |
2877 | } |
2878 | |
2879 | /* finally push this lib directory on the end of @INC */ |
3280af22 |
2880 | av_push(GvAVn(PL_incgv), libdir); |
774d564b |
2881 | } |
34de22dd |
2882 | } |
93a17b20 |
2883 | |
199100c8 |
2884 | #ifdef USE_THREADS |
76e3520e |
2885 | STATIC struct perl_thread * |
cea2e8a9 |
2886 | S_init_main_thread(pTHX) |
199100c8 |
2887 | { |
c5be433b |
2888 | #if !defined(PERL_IMPLICIT_CONTEXT) |
52e1cb5e |
2889 | struct perl_thread *thr; |
cea2e8a9 |
2890 | #endif |
199100c8 |
2891 | XPV *xpv; |
2892 | |
52e1cb5e |
2893 | Newz(53, thr, 1, struct perl_thread); |
533c011a |
2894 | PL_curcop = &PL_compiling; |
c5be433b |
2895 | thr->interp = PERL_GET_INTERP; |
199100c8 |
2896 | thr->cvcache = newHV(); |
54b9620d |
2897 | thr->threadsv = newAV(); |
940cb80d |
2898 | /* thr->threadsvp is set when find_threadsv is called */ |
199100c8 |
2899 | thr->specific = newAV(); |
38a03e6e |
2900 | thr->errhv = newHV(); |
199100c8 |
2901 | thr->flags = THRf_R_JOINABLE; |
2902 | MUTEX_INIT(&thr->mutex); |
2903 | /* Handcraft thrsv similarly to mess_sv */ |
533c011a |
2904 | New(53, PL_thrsv, 1, SV); |
199100c8 |
2905 | Newz(53, xpv, 1, XPV); |
533c011a |
2906 | SvFLAGS(PL_thrsv) = SVt_PV; |
2907 | SvANY(PL_thrsv) = (void*)xpv; |
2908 | SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */ |
2909 | SvPVX(PL_thrsv) = (char*)thr; |
2910 | SvCUR_set(PL_thrsv, sizeof(thr)); |
2911 | SvLEN_set(PL_thrsv, sizeof(thr)); |
2912 | *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */ |
2913 | thr->oursv = PL_thrsv; |
2914 | PL_chopset = " \n-"; |
3967c732 |
2915 | PL_dumpindent = 4; |
533c011a |
2916 | |
2917 | MUTEX_LOCK(&PL_threads_mutex); |
2918 | PL_nthreads++; |
199100c8 |
2919 | thr->tid = 0; |
2920 | thr->next = thr; |
2921 | thr->prev = thr; |
533c011a |
2922 | MUTEX_UNLOCK(&PL_threads_mutex); |
199100c8 |
2923 | |
4b026b9e |
2924 | #ifdef HAVE_THREAD_INTERN |
4f63d024 |
2925 | Perl_init_thread_intern(thr); |
235db74f |
2926 | #endif |
2927 | |
2928 | #ifdef SET_THREAD_SELF |
2929 | SET_THREAD_SELF(thr); |
199100c8 |
2930 | #else |
2931 | thr->self = pthread_self(); |
235db74f |
2932 | #endif /* SET_THREAD_SELF */ |
199100c8 |
2933 | SET_THR(thr); |
2934 | |
2935 | /* |
2936 | * These must come after the SET_THR because sv_setpvn does |
2937 | * SvTAINT and the taint fields require dTHR. |
2938 | */ |
533c011a |
2939 | PL_toptarget = NEWSV(0,0); |
2940 | sv_upgrade(PL_toptarget, SVt_PVFM); |
2941 | sv_setpvn(PL_toptarget, "", 0); |
2942 | PL_bodytarget = NEWSV(0,0); |
2943 | sv_upgrade(PL_bodytarget, SVt_PVFM); |
2944 | sv_setpvn(PL_bodytarget, "", 0); |
2945 | PL_formtarget = PL_bodytarget; |
79cb57f6 |
2946 | thr->errsv = newSVpvn("", 0); |
78857c3c |
2947 | (void) find_threadsv("@"); /* Ensure $@ is initialised early */ |
5c0ca799 |
2948 | |
533c011a |
2949 | PL_maxscream = -1; |
0b94c7bb |
2950 | PL_regcompp = MEMBER_TO_FPTR(Perl_pregcomp); |
2951 | PL_regexecp = MEMBER_TO_FPTR(Perl_regexec_flags); |
2952 | PL_regint_start = MEMBER_TO_FPTR(Perl_re_intuit_start); |
2953 | PL_regint_string = MEMBER_TO_FPTR(Perl_re_intuit_string); |
2954 | PL_regfree = MEMBER_TO_FPTR(Perl_pregfree); |
533c011a |
2955 | PL_regindent = 0; |
2956 | PL_reginterp_cnt = 0; |
5c0ca799 |
2957 | |
199100c8 |
2958 | return thr; |
2959 | } |
2960 | #endif /* USE_THREADS */ |
2961 | |
93a17b20 |
2962 | void |
864dbfa3 |
2963 | Perl_call_list(pTHX_ I32 oldscope, AV *paramList) |
93a17b20 |
2964 | { |
11343788 |
2965 | dTHR; |
312caa8e |
2966 | SV *atsv = ERRSV; |
3280af22 |
2967 | line_t oldline = PL_curcop->cop_line; |
312caa8e |
2968 | CV *cv; |
22921e25 |
2969 | STRLEN len; |
6224f72b |
2970 | int ret; |
93a17b20 |
2971 | |
76e3520e |
2972 | while (AvFILL(paramList) >= 0) { |
312caa8e |
2973 | cv = (CV*)av_shift(paramList); |
8990e307 |
2974 | SAVEFREESV(cv); |
0b94c7bb |
2975 | CALLPROTECT(aTHX_ &ret, MEMBER_TO_FPTR(S_call_list_body), cv); |
6224f72b |
2976 | switch (ret) { |
312caa8e |
2977 | case 0: |
2978 | (void)SvPV(atsv, len); |
2979 | if (len) { |
2980 | PL_curcop = &PL_compiling; |
2981 | PL_curcop->cop_line = oldline; |
2982 | if (paramList == PL_beginav) |
2983 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); |
2984 | else |
2985 | sv_catpv(atsv, "END failed--cleanup aborted"); |
2986 | while (PL_scopestack_ix > oldscope) |
2987 | LEAVE; |
cea2e8a9 |
2988 | Perl_croak(aTHX_ "%s", SvPVX(atsv)); |
a0d0e21e |
2989 | } |
85e6fe83 |
2990 | break; |
6224f72b |
2991 | case 1: |
f86702cc |
2992 | STATUS_ALL_FAILURE; |
85e6fe83 |
2993 | /* FALL THROUGH */ |
6224f72b |
2994 | case 2: |
85e6fe83 |
2995 | /* my_exit() was called */ |
3280af22 |
2996 | while (PL_scopestack_ix > oldscope) |
2ae324a7 |
2997 | LEAVE; |
84902520 |
2998 | FREETMPS; |
3280af22 |
2999 | PL_curstash = PL_defstash; |
3000 | if (PL_endav) |
3001 | call_list(oldscope, PL_endav); |
3280af22 |
3002 | PL_curcop = &PL_compiling; |
3003 | PL_curcop->cop_line = oldline; |
3004 | if (PL_statusvalue) { |
3005 | if (paramList == PL_beginav) |
cea2e8a9 |
3006 | Perl_croak(aTHX_ "BEGIN failed--compilation aborted"); |
85e6fe83 |
3007 | else |
cea2e8a9 |
3008 | Perl_croak(aTHX_ "END failed--cleanup aborted"); |
85e6fe83 |
3009 | } |
f86702cc |
3010 | my_exit_jump(); |
85e6fe83 |
3011 | /* NOTREACHED */ |
6224f72b |
3012 | case 3: |
312caa8e |
3013 | if (PL_restartop) { |
3014 | PL_curcop = &PL_compiling; |
3015 | PL_curcop->cop_line = oldline; |
3016 | JMPENV_JUMP(3); |
85e6fe83 |
3017 | } |
312caa8e |
3018 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
3019 | FREETMPS; |
3020 | break; |
8990e307 |
3021 | } |
93a17b20 |
3022 | } |
93a17b20 |
3023 | } |
93a17b20 |
3024 | |
312caa8e |
3025 | STATIC void * |
cea2e8a9 |
3026 | S_call_list_body(pTHX_ va_list args) |
312caa8e |
3027 | { |
3028 | dTHR; |
3029 | CV *cv = va_arg(args, CV*); |
3030 | |
3031 | PUSHMARK(PL_stack_sp); |
864dbfa3 |
3032 | call_sv((SV*)cv, G_EVAL|G_DISCARD); |
312caa8e |
3033 | return NULL; |
3034 | } |
3035 | |
f86702cc |
3036 | void |
864dbfa3 |
3037 | Perl_my_exit(pTHX_ U32 status) |
f86702cc |
3038 | { |
5dc0d613 |
3039 | dTHR; |
3040 | |
8b73bbec |
3041 | DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n", |
a863c7d1 |
3042 | thr, (unsigned long) status)); |
f86702cc |
3043 | switch (status) { |
3044 | case 0: |
3045 | STATUS_ALL_SUCCESS; |
3046 | break; |
3047 | case 1: |
3048 | STATUS_ALL_FAILURE; |
3049 | break; |
3050 | default: |
3051 | STATUS_NATIVE_SET(status); |
3052 | break; |
3053 | } |
3054 | my_exit_jump(); |
3055 | } |
3056 | |
3057 | void |
864dbfa3 |
3058 | Perl_my_failure_exit(pTHX) |
f86702cc |
3059 | { |
3060 | #ifdef VMS |
3061 | if (vaxc$errno & 1) { |
4fdae800 |
3062 | if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */ |
3063 | STATUS_NATIVE_SET(44); |
f86702cc |
3064 | } |
3065 | else { |
ff0cee69 |
3066 | if (!vaxc$errno && errno) /* unlikely */ |
4fdae800 |
3067 | STATUS_NATIVE_SET(44); |
f86702cc |
3068 | else |
4fdae800 |
3069 | STATUS_NATIVE_SET(vaxc$errno); |
f86702cc |
3070 | } |
3071 | #else |
9b599b2a |
3072 | int exitstatus; |
f86702cc |
3073 | if (errno & 255) |
3074 | STATUS_POSIX_SET(errno); |
9b599b2a |
3075 | else { |
3076 | exitstatus = STATUS_POSIX >> 8; |
3077 | if (exitstatus & 255) |
3078 | STATUS_POSIX_SET(exitstatus); |
3079 | else |
3080 | STATUS_POSIX_SET(255); |
3081 | } |
f86702cc |
3082 | #endif |
3083 | my_exit_jump(); |
93a17b20 |
3084 | } |
3085 | |
76e3520e |
3086 | STATIC void |
cea2e8a9 |
3087 | S_my_exit_jump(pTHX) |
f86702cc |
3088 | { |
de616352 |
3089 | dTHR; |
c09156bb |
3090 | register PERL_CONTEXT *cx; |
f86702cc |
3091 | I32 gimme; |
3092 | SV **newsp; |
3093 | |
3280af22 |
3094 | if (PL_e_script) { |
3095 | SvREFCNT_dec(PL_e_script); |
3096 | PL_e_script = Nullsv; |
f86702cc |
3097 | } |
3098 | |
3280af22 |
3099 | POPSTACK_TO(PL_mainstack); |
f86702cc |
3100 | if (cxstack_ix >= 0) { |
3101 | if (cxstack_ix > 0) |
3102 | dounwind(0); |
3280af22 |
3103 | POPBLOCK(cx,PL_curpm); |
f86702cc |
3104 | LEAVE; |
3105 | } |
ff0cee69 |
3106 | |
6224f72b |
3107 | JMPENV_JUMP(2); |
f86702cc |
3108 | } |
873ef191 |
3109 | |
7a5f8e82 |
3110 | #ifdef PERL_OBJECT |
3111 | #define NO_XSLOCKS |
873ef191 |
3112 | #include "XSUB.h" |
51371543 |
3113 | #endif |
873ef191 |
3114 | |
0cb96387 |
3115 | static I32 |
3116 | read_e_script(pTHXo_ int idx, SV *buf_sv, int maxlen) |
873ef191 |
3117 | { |
3118 | char *p, *nl; |
3280af22 |
3119 | p = SvPVX(PL_e_script); |
873ef191 |
3120 | nl = strchr(p, '\n'); |
3280af22 |
3121 | nl = (nl) ? nl+1 : SvEND(PL_e_script); |
7dfe3f66 |
3122 | if (nl-p == 0) { |
0cb96387 |
3123 | filter_del(read_e_script); |
873ef191 |
3124 | return 0; |
7dfe3f66 |
3125 | } |
873ef191 |
3126 | sv_catpvn(buf_sv, p, nl-p); |
3280af22 |
3127 | sv_chop(PL_e_script, nl); |
873ef191 |
3128 | return 1; |
3129 | } |
3130 | |
1163b5c4 |
3131 | |