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 | |
51fa4eea |
27 | #ifdef I_FCNTL |
28 | #include <fcntl.h> |
29 | #endif |
30 | #ifdef I_SYS_FILE |
31 | #include <sys/file.h> |
32 | #endif |
33 | |
a687059c |
34 | #ifdef IAMSUID |
35 | #ifndef DOSUID |
36 | #define DOSUID |
37 | #endif |
38 | #endif |
378cc40b |
39 | |
a687059c |
40 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
41 | #ifdef DOSUID |
42 | #undef DOSUID |
43 | #endif |
44 | #endif |
8d063cd8 |
45 | |
873ef191 |
46 | #ifdef PERL_OBJECT |
01f988be |
47 | CPerlObj* perl_alloc(IPerlMem* ipM, IPerlEnv* ipE, IPerlStdIO* ipStd, |
864dbfa3 |
48 | IPerlLIO* ipLIO, IPerlDir* ipD, IPerlSock* ipS, IPerlProc* ipP) |
01f988be |
49 | { |
50 | CPerlObj* pPerl = new(ipM) CPerlObj(ipM, ipE, ipStd, ipLIO, ipD, ipS, ipP); |
51 | if(pPerl != NULL) |
52 | pPerl->Init(); |
79072805 |
53 | |
01f988be |
54 | return pPerl; |
55 | } |
56 | #else |
93a17b20 |
57 | PerlInterpreter * |
cea2e8a9 |
58 | perl_alloc(void) |
79072805 |
59 | { |
cea2e8a9 |
60 | PerlInterpreter *my_perl; |
79072805 |
61 | |
cea2e8a9 |
62 | #if !defined(PERL_IMPLICIT_CONTEXT) |
3280af22 |
63 | PL_curinterp = 0; |
cea2e8a9 |
64 | #endif |
65 | New(53, my_perl, 1, PerlInterpreter); |
66 | return my_perl; |
79072805 |
67 | } |
01f988be |
68 | #endif /* PERL_OBJECT */ |
79072805 |
69 | |
70 | void |
cea2e8a9 |
71 | perl_construct(register PerlInterpreter *my_perl) |
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 | |
76e3520e |
80 | #ifndef PERL_OBJECT |
cea2e8a9 |
81 | if (!(PL_curinterp = my_perl)) |
79072805 |
82 | return; |
76e3520e |
83 | #endif |
79072805 |
84 | |
8990e307 |
85 | #ifdef MULTIPLICITY |
8f872242 |
86 | ++PL_ninterps; |
cea2e8a9 |
87 | Zero(my_perl, 1, PerlInterpreter); |
8990e307 |
88 | #endif |
79072805 |
89 | |
33f46ff6 |
90 | /* Init the real globals (and main thread)? */ |
3280af22 |
91 | if (!PL_linestr) { |
11343788 |
92 | #ifdef USE_THREADS |
8023c3ce |
93 | |
33f46ff6 |
94 | INIT_THREADS; |
d55594ae |
95 | #ifdef ALLOC_THREAD_KEY |
96 | ALLOC_THREAD_KEY; |
97 | #else |
533c011a |
98 | if (pthread_key_create(&PL_thr_key, 0)) |
cea2e8a9 |
99 | Perl_croak(aTHX_ "panic: pthread_key_create"); |
d55594ae |
100 | #endif |
533c011a |
101 | MUTEX_INIT(&PL_sv_mutex); |
a863c7d1 |
102 | /* |
103 | * Safe to use basic SV functions from now on (though |
104 | * not things like mortals or tainting yet). |
105 | */ |
533c011a |
106 | MUTEX_INIT(&PL_eval_mutex); |
107 | COND_INIT(&PL_eval_cond); |
108 | MUTEX_INIT(&PL_threads_mutex); |
109 | COND_INIT(&PL_nthreads_cond); |
dce16143 |
110 | #ifdef EMULATE_ATOMIC_REFCOUNTS |
533c011a |
111 | MUTEX_INIT(&PL_svref_mutex); |
dce16143 |
112 | #endif /* EMULATE_ATOMIC_REFCOUNTS */ |
a863c7d1 |
113 | |
5ff3f7a4 |
114 | MUTEX_INIT(&PL_cred_mutex); |
115 | |
199100c8 |
116 | thr = init_main_thread(); |
11343788 |
117 | #endif /* USE_THREADS */ |
118 | |
cea2e8a9 |
119 | PL_protect = FUNC_NAME_TO_PTR(Perl_default_protect); /* for exceptions */ |
312caa8e |
120 | |
2aea9f8a |
121 | PL_curcop = &PL_compiling; /* needed by ckWARN, right away */ |
122 | |
3280af22 |
123 | PL_linestr = NEWSV(65,79); |
124 | sv_upgrade(PL_linestr,SVt_PVIV); |
79072805 |
125 | |
3280af22 |
126 | if (!SvREADONLY(&PL_sv_undef)) { |
d689ffdd |
127 | /* set read-only and try to insure than we wont see REFCNT==0 |
128 | very often */ |
129 | |
3280af22 |
130 | SvREADONLY_on(&PL_sv_undef); |
131 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; |
79072805 |
132 | |
3280af22 |
133 | sv_setpv(&PL_sv_no,PL_No); |
134 | SvNV(&PL_sv_no); |
135 | SvREADONLY_on(&PL_sv_no); |
136 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; |
79072805 |
137 | |
3280af22 |
138 | sv_setpv(&PL_sv_yes,PL_Yes); |
139 | SvNV(&PL_sv_yes); |
140 | SvREADONLY_on(&PL_sv_yes); |
141 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; |
6e72f9df |
142 | } |
79072805 |
143 | |
76e3520e |
144 | #ifdef PERL_OBJECT |
145 | /* TODO: */ |
6b88bc9c |
146 | /* PL_sighandlerp = sighandler; */ |
76e3520e |
147 | #else |
cea2e8a9 |
148 | PL_sighandlerp = Perl_sighandler; |
76e3520e |
149 | #endif |
3280af22 |
150 | PL_pidstatus = newHV(); |
44a8e56a |
151 | |
79072805 |
152 | #ifdef MSDOS |
153 | /* |
154 | * There is no way we can refer to them from Perl so close them to save |
155 | * space. The other alternative would be to provide STDAUX and STDPRN |
156 | * filehandles. |
157 | */ |
158 | (void)fclose(stdaux); |
159 | (void)fclose(stdprn); |
160 | #endif |
161 | } |
162 | |
79cb57f6 |
163 | PL_nrs = newSVpvn("\n", 1); |
3280af22 |
164 | PL_rs = SvREFCNT_inc(PL_nrs); |
dc92893f |
165 | |
cea2e8a9 |
166 | init_stacks(); |
8990e307 |
167 | #ifdef MULTIPLICITY |
cb68f92d |
168 | init_interp(); |
8f872242 |
169 | PL_perl_destruct_level = 1; |
8ebc5c01 |
170 | #else |
3280af22 |
171 | if (PL_perl_destruct_level > 0) |
cb68f92d |
172 | init_interp(); |
79072805 |
173 | #endif |
174 | |
748a9306 |
175 | init_ids(); |
3280af22 |
176 | PL_lex_state = LEX_NOTPARSING; |
a5f75d66 |
177 | |
312caa8e |
178 | JMPENV_BOOTSTRAP; |
f86702cc |
179 | STATUS_ALL_SUCCESS; |
180 | |
36477c24 |
181 | SET_NUMERIC_STANDARD(); |
cceca5ed |
182 | #if defined(PERL_SUBVERSION) && PERL_SUBVERSION > 0 |
183 | sprintf(PL_patchlevel, "%7.5f", (double) PERL_REVISION |
184 | + ((double) PERL_VERSION / (double) 1000) |
185 | + ((double) PERL_SUBVERSION / (double) 100000)); |
a5f75d66 |
186 | #else |
cceca5ed |
187 | sprintf(PL_patchlevel, "%5.3f", (double) PERL_REVISION + |
188 | ((double) PERL_VERSION / (double) 1000)); |
a5f75d66 |
189 | #endif |
79072805 |
190 | |
ab821d7f |
191 | #if defined(LOCAL_PATCH_COUNT) |
3280af22 |
192 | PL_localpatches = local_patches; /* For possible -v */ |
ab821d7f |
193 | #endif |
194 | |
4b556e6c |
195 | PerlIO_init(); /* Hook to IO system */ |
760ac839 |
196 | |
3280af22 |
197 | PL_fdpid = newAV(); /* for remembering popen pids by fd */ |
198 | PL_modglobal = newHV(); /* pointers to per-interpreter module globals */ |
8990e307 |
199 | |
11343788 |
200 | DEBUG( { |
3280af22 |
201 | New(51,PL_debname,128,char); |
202 | New(52,PL_debdelim,128,char); |
11343788 |
203 | } ) |
204 | |
8990e307 |
205 | ENTER; |
79072805 |
206 | } |
207 | |
208 | void |
cea2e8a9 |
209 | perl_destruct(register PerlInterpreter *my_perl) |
79072805 |
210 | { |
11343788 |
211 | dTHR; |
748a9306 |
212 | int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
8990e307 |
213 | I32 last_sv_count; |
a0d0e21e |
214 | HV *hv; |
1f2bfc8a |
215 | #ifdef USE_THREADS |
33f46ff6 |
216 | Thread t; |
cea2e8a9 |
217 | dTHX; |
1f2bfc8a |
218 | #endif /* USE_THREADS */ |
8990e307 |
219 | |
cea2e8a9 |
220 | #if !defined(PERL_OBJECT) && !defined(PERL_IMPLICIT_CONTEXT) |
221 | if (!(PL_curinterp = my_perl)) |
79072805 |
222 | return; |
76e3520e |
223 | #endif |
748a9306 |
224 | |
11343788 |
225 | #ifdef USE_THREADS |
0f15f207 |
226 | #ifndef FAKE_THREADS |
8023c3ce |
227 | /* Pass 1 on any remaining threads: detach joinables, join zombies */ |
228 | retry_cleanup: |
533c011a |
229 | MUTEX_LOCK(&PL_threads_mutex); |
8b73bbec |
230 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 |
231 | "perl_destruct: waiting for %d threads...\n", |
533c011a |
232 | PL_nthreads - 1)); |
33f46ff6 |
233 | for (t = thr->next; t != thr; t = t->next) { |
605e5515 |
234 | MUTEX_LOCK(&t->mutex); |
235 | switch (ThrSTATE(t)) { |
236 | AV *av; |
c7848ba1 |
237 | case THRf_ZOMBIE: |
8b73bbec |
238 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 |
239 | "perl_destruct: joining zombie %p\n", t)); |
605e5515 |
240 | ThrSETSTATE(t, THRf_DEAD); |
241 | MUTEX_UNLOCK(&t->mutex); |
533c011a |
242 | PL_nthreads--; |
8023c3ce |
243 | /* |
244 | * The SvREFCNT_dec below may take a long time (e.g. av |
245 | * may contain an object scalar whose destructor gets |
246 | * called) so we have to unlock threads_mutex and start |
247 | * all over again. |
248 | */ |
533c011a |
249 | MUTEX_UNLOCK(&PL_threads_mutex); |
ea0efc06 |
250 | JOIN(t, &av); |
605e5515 |
251 | SvREFCNT_dec((SV*)av); |
8b73bbec |
252 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 |
253 | "perl_destruct: joined zombie %p OK\n", t)); |
8023c3ce |
254 | goto retry_cleanup; |
c7848ba1 |
255 | case THRf_R_JOINABLE: |
8b73bbec |
256 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 |
257 | "perl_destruct: detaching thread %p\n", t)); |
258 | ThrSETSTATE(t, THRf_R_DETACHED); |
259 | /* |
260 | * We unlock threads_mutex and t->mutex in the opposite order |
261 | * from which we locked them just so that DETACH won't |
262 | * deadlock if it panics. It's only a breach of good style |
263 | * not a bug since they are unlocks not locks. |
264 | */ |
533c011a |
265 | MUTEX_UNLOCK(&PL_threads_mutex); |
c7848ba1 |
266 | DETACH(t); |
267 | MUTEX_UNLOCK(&t->mutex); |
8023c3ce |
268 | goto retry_cleanup; |
c7848ba1 |
269 | default: |
8b73bbec |
270 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 |
271 | "perl_destruct: ignoring %p (state %u)\n", |
272 | t, ThrSTATE(t))); |
273 | MUTEX_UNLOCK(&t->mutex); |
c7848ba1 |
274 | /* fall through and out */ |
33f46ff6 |
275 | } |
276 | } |
8023c3ce |
277 | /* We leave the above "Pass 1" loop with threads_mutex still locked */ |
278 | |
279 | /* Pass 2 on remaining threads: wait for the thread count to drop to one */ |
533c011a |
280 | while (PL_nthreads > 1) |
11343788 |
281 | { |
8b73bbec |
282 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 |
283 | "perl_destruct: final wait for %d threads\n", |
533c011a |
284 | PL_nthreads - 1)); |
285 | COND_WAIT(&PL_nthreads_cond, &PL_threads_mutex); |
11343788 |
286 | } |
287 | /* At this point, we're the last thread */ |
533c011a |
288 | MUTEX_UNLOCK(&PL_threads_mutex); |
8b73bbec |
289 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "perl_destruct: armageddon has arrived\n")); |
533c011a |
290 | MUTEX_DESTROY(&PL_threads_mutex); |
291 | COND_DESTROY(&PL_nthreads_cond); |
0f15f207 |
292 | #endif /* !defined(FAKE_THREADS) */ |
11343788 |
293 | #endif /* USE_THREADS */ |
294 | |
3280af22 |
295 | destruct_level = PL_perl_destruct_level; |
4633a7c4 |
296 | #ifdef DEBUGGING |
297 | { |
298 | char *s; |
76e3520e |
299 | if (s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL")) { |
5f05dabc |
300 | int i = atoi(s); |
301 | if (destruct_level < i) |
302 | destruct_level = i; |
303 | } |
4633a7c4 |
304 | } |
305 | #endif |
306 | |
8990e307 |
307 | LEAVE; |
a0d0e21e |
308 | FREETMPS; |
309 | |
cb68f92d |
310 | #ifdef MULTIPLICITY |
8f872242 |
311 | --PL_ninterps; |
cb68f92d |
312 | #endif |
313 | |
ff0cee69 |
314 | /* We must account for everything. */ |
315 | |
316 | /* Destroy the main CV and syntax tree */ |
3280af22 |
317 | if (PL_main_root) { |
318 | PL_curpad = AvARRAY(PL_comppad); |
319 | op_free(PL_main_root); |
320 | PL_main_root = Nullop; |
a0d0e21e |
321 | } |
3280af22 |
322 | PL_curcop = &PL_compiling; |
323 | PL_main_start = Nullop; |
324 | SvREFCNT_dec(PL_main_cv); |
325 | PL_main_cv = Nullcv; |
24d3c518 |
326 | PL_dirty = TRUE; |
ff0cee69 |
327 | |
3280af22 |
328 | if (PL_sv_objcount) { |
a0d0e21e |
329 | /* |
330 | * Try to destruct global references. We do this first so that the |
331 | * destructors and destructees still exist. Some sv's might remain. |
332 | * Non-referenced objects are on their own. |
333 | */ |
a0d0e21e |
334 | sv_clean_objs(); |
8990e307 |
335 | } |
336 | |
5cd24f17 |
337 | /* unhook hooks which will soon be, or use, destroyed data */ |
3280af22 |
338 | SvREFCNT_dec(PL_warnhook); |
339 | PL_warnhook = Nullsv; |
340 | SvREFCNT_dec(PL_diehook); |
341 | PL_diehook = Nullsv; |
342 | SvREFCNT_dec(PL_parsehook); |
343 | PL_parsehook = Nullsv; |
5cd24f17 |
344 | |
4b556e6c |
345 | /* call exit list functions */ |
3280af22 |
346 | while (PL_exitlistlen-- > 0) |
cea2e8a9 |
347 | PL_exitlist[PL_exitlistlen].fn(aTHX_ PL_exitlist[PL_exitlistlen].ptr); |
4b556e6c |
348 | |
3280af22 |
349 | Safefree(PL_exitlist); |
4b556e6c |
350 | |
a0d0e21e |
351 | if (destruct_level == 0){ |
8990e307 |
352 | |
a0d0e21e |
353 | DEBUG_P(debprofdump()); |
354 | |
355 | /* The exit() function will do everything that needs doing. */ |
356 | return; |
357 | } |
5dd60ef7 |
358 | |
5f05dabc |
359 | /* loosen bonds of global variables */ |
360 | |
3280af22 |
361 | if(PL_rsfp) { |
362 | (void)PerlIO_close(PL_rsfp); |
363 | PL_rsfp = Nullfp; |
8ebc5c01 |
364 | } |
365 | |
366 | /* Filters for program text */ |
3280af22 |
367 | SvREFCNT_dec(PL_rsfp_filters); |
368 | PL_rsfp_filters = Nullav; |
8ebc5c01 |
369 | |
370 | /* switches */ |
3280af22 |
371 | PL_preprocess = FALSE; |
372 | PL_minus_n = FALSE; |
373 | PL_minus_p = FALSE; |
374 | PL_minus_l = FALSE; |
375 | PL_minus_a = FALSE; |
376 | PL_minus_F = FALSE; |
377 | PL_doswitches = FALSE; |
599cee73 |
378 | PL_dowarn = G_WARN_OFF; |
3280af22 |
379 | PL_doextract = FALSE; |
380 | PL_sawampersand = FALSE; /* must save all match strings */ |
381 | PL_sawstudy = FALSE; /* do fbm_instr on all strings */ |
382 | PL_sawvec = FALSE; |
383 | PL_unsafe = FALSE; |
384 | |
385 | Safefree(PL_inplace); |
386 | PL_inplace = Nullch; |
387 | |
388 | if (PL_e_script) { |
389 | SvREFCNT_dec(PL_e_script); |
390 | PL_e_script = Nullsv; |
8ebc5c01 |
391 | } |
392 | |
393 | /* magical thingies */ |
394 | |
3280af22 |
395 | Safefree(PL_ofs); /* $, */ |
396 | PL_ofs = Nullch; |
5f05dabc |
397 | |
3280af22 |
398 | Safefree(PL_ors); /* $\ */ |
399 | PL_ors = Nullch; |
8ebc5c01 |
400 | |
3280af22 |
401 | SvREFCNT_dec(PL_rs); /* $/ */ |
402 | PL_rs = Nullsv; |
dc92893f |
403 | |
3280af22 |
404 | SvREFCNT_dec(PL_nrs); /* $/ helper */ |
405 | PL_nrs = Nullsv; |
5f05dabc |
406 | |
3280af22 |
407 | PL_multiline = 0; /* $* */ |
5f05dabc |
408 | |
3280af22 |
409 | SvREFCNT_dec(PL_statname); |
410 | PL_statname = Nullsv; |
411 | PL_statgv = Nullgv; |
5f05dabc |
412 | |
8ebc5c01 |
413 | /* defgv, aka *_ should be taken care of elsewhere */ |
414 | |
8ebc5c01 |
415 | /* clean up after study() */ |
3280af22 |
416 | SvREFCNT_dec(PL_lastscream); |
417 | PL_lastscream = Nullsv; |
418 | Safefree(PL_screamfirst); |
419 | PL_screamfirst = 0; |
420 | Safefree(PL_screamnext); |
421 | PL_screamnext = 0; |
8ebc5c01 |
422 | |
423 | /* startup and shutdown function lists */ |
3280af22 |
424 | SvREFCNT_dec(PL_beginav); |
425 | SvREFCNT_dec(PL_endav); |
426 | SvREFCNT_dec(PL_initav); |
427 | PL_beginav = Nullav; |
428 | PL_endav = Nullav; |
429 | PL_initav = Nullav; |
5618dfe8 |
430 | |
8ebc5c01 |
431 | /* shortcuts just get cleared */ |
3280af22 |
432 | PL_envgv = Nullgv; |
433 | PL_siggv = Nullgv; |
434 | PL_incgv = Nullgv; |
435 | PL_hintgv = Nullgv; |
436 | PL_errgv = Nullgv; |
437 | PL_argvgv = Nullgv; |
438 | PL_argvoutgv = Nullgv; |
439 | PL_stdingv = Nullgv; |
440 | PL_last_in_gv = Nullgv; |
441 | PL_replgv = Nullgv; |
8ebc5c01 |
442 | |
443 | /* reset so print() ends up where we expect */ |
444 | setdefout(Nullgv); |
445 | |
a0d0e21e |
446 | /* Prepare to destruct main symbol table. */ |
5f05dabc |
447 | |
3280af22 |
448 | hv = PL_defstash; |
449 | PL_defstash = 0; |
a0d0e21e |
450 | SvREFCNT_dec(hv); |
451 | |
452 | FREETMPS; |
453 | if (destruct_level >= 2) { |
3280af22 |
454 | if (PL_scopestack_ix != 0) |
cea2e8a9 |
455 | Perl_warn(aTHX_ "Unbalanced scopes: %ld more ENTERs than LEAVEs\n", |
3280af22 |
456 | (long)PL_scopestack_ix); |
457 | if (PL_savestack_ix != 0) |
cea2e8a9 |
458 | Perl_warn(aTHX_ "Unbalanced saves: %ld more saves than restores\n", |
3280af22 |
459 | (long)PL_savestack_ix); |
460 | if (PL_tmps_floor != -1) |
cea2e8a9 |
461 | Perl_warn(aTHX_ "Unbalanced tmps: %ld more allocs than frees\n", |
3280af22 |
462 | (long)PL_tmps_floor + 1); |
a0d0e21e |
463 | if (cxstack_ix != -1) |
cea2e8a9 |
464 | Perl_warn(aTHX_ "Unbalanced context: %ld more PUSHes than POPs\n", |
ff0cee69 |
465 | (long)cxstack_ix + 1); |
a0d0e21e |
466 | } |
8990e307 |
467 | |
468 | /* Now absolutely destruct everything, somehow or other, loops or no. */ |
8990e307 |
469 | last_sv_count = 0; |
3280af22 |
470 | SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
471 | while (PL_sv_count != 0 && PL_sv_count != last_sv_count) { |
472 | last_sv_count = PL_sv_count; |
8990e307 |
473 | sv_clean_all(); |
474 | } |
3280af22 |
475 | SvFLAGS(PL_strtab) &= ~SVTYPEMASK; |
476 | SvFLAGS(PL_strtab) |= SVt_PVHV; |
6e72f9df |
477 | |
478 | /* Destruct the global string table. */ |
479 | { |
480 | /* Yell and reset the HeVAL() slots that are still holding refcounts, |
481 | * so that sv_free() won't fail on them. |
482 | */ |
483 | I32 riter; |
484 | I32 max; |
485 | HE *hent; |
486 | HE **array; |
487 | |
488 | riter = 0; |
3280af22 |
489 | max = HvMAX(PL_strtab); |
490 | array = HvARRAY(PL_strtab); |
6e72f9df |
491 | hent = array[0]; |
492 | for (;;) { |
493 | if (hent) { |
cea2e8a9 |
494 | Perl_warn(aTHX_ "Unbalanced string table refcount: (%d) for \"%s\"", |
6e72f9df |
495 | HeVAL(hent) - Nullsv, HeKEY(hent)); |
496 | HeVAL(hent) = Nullsv; |
497 | hent = HeNEXT(hent); |
498 | } |
499 | if (!hent) { |
500 | if (++riter > max) |
501 | break; |
502 | hent = array[riter]; |
503 | } |
504 | } |
505 | } |
3280af22 |
506 | SvREFCNT_dec(PL_strtab); |
6e72f9df |
507 | |
3280af22 |
508 | if (PL_sv_count != 0) |
cea2e8a9 |
509 | Perl_warn(aTHX_ "Scalars leaked: %ld\n", (long)PL_sv_count); |
6e72f9df |
510 | |
4633a7c4 |
511 | sv_free_arenas(); |
44a8e56a |
512 | |
513 | /* No SVs have survived, need to clean out */ |
3280af22 |
514 | PL_linestr = NULL; |
515 | PL_pidstatus = Nullhv; |
516 | Safefree(PL_origfilename); |
517 | Safefree(PL_archpat_auto); |
518 | Safefree(PL_reg_start_tmp); |
5c5e4c24 |
519 | if (PL_reg_curpm) |
520 | Safefree(PL_reg_curpm); |
3280af22 |
521 | Safefree(HeKEY_hek(&PL_hv_fetch_ent_mh)); |
522 | Safefree(PL_op_mask); |
6e72f9df |
523 | nuke_stacks(); |
3280af22 |
524 | PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */ |
a0d0e21e |
525 | |
526 | DEBUG_P(debprofdump()); |
11343788 |
527 | #ifdef USE_THREADS |
5f08fbcd |
528 | MUTEX_DESTROY(&PL_strtab_mutex); |
533c011a |
529 | MUTEX_DESTROY(&PL_sv_mutex); |
530 | MUTEX_DESTROY(&PL_eval_mutex); |
5ff3f7a4 |
531 | MUTEX_DESTROY(&PL_cred_mutex); |
533c011a |
532 | COND_DESTROY(&PL_eval_cond); |
11d617a5 |
533 | #ifdef EMULATE_ATOMIC_REFCOUNTS |
534 | MUTEX_DESTROY(&PL_svref_mutex); |
535 | #endif /* EMULATE_ATOMIC_REFCOUNTS */ |
fc36a67e |
536 | |
8023c3ce |
537 | /* As the penultimate thing, free the non-arena SV for thrsv */ |
533c011a |
538 | Safefree(SvPVX(PL_thrsv)); |
539 | Safefree(SvANY(PL_thrsv)); |
540 | Safefree(PL_thrsv); |
541 | PL_thrsv = Nullsv; |
8023c3ce |
542 | #endif /* USE_THREADS */ |
543 | |
fc36a67e |
544 | /* As the absolutely last thing, free the non-arena SV for mess() */ |
545 | |
3280af22 |
546 | if (PL_mess_sv) { |
9c63abab |
547 | /* it could have accumulated taint magic */ |
548 | if (SvTYPE(PL_mess_sv) >= SVt_PVMG) { |
549 | MAGIC* mg; |
550 | MAGIC* moremagic; |
551 | for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) { |
552 | moremagic = mg->mg_moremagic; |
553 | if (mg->mg_ptr && mg->mg_type != 'g' && mg->mg_len >= 0) |
554 | Safefree(mg->mg_ptr); |
555 | Safefree(mg); |
556 | } |
557 | } |
fc36a67e |
558 | /* we know that type >= SVt_PV */ |
3280af22 |
559 | SvOOK_off(PL_mess_sv); |
560 | Safefree(SvPVX(PL_mess_sv)); |
561 | Safefree(SvANY(PL_mess_sv)); |
562 | Safefree(PL_mess_sv); |
563 | PL_mess_sv = Nullsv; |
fc36a67e |
564 | } |
79072805 |
565 | } |
566 | |
567 | void |
cea2e8a9 |
568 | perl_free(PerlInterpreter *my_perl) |
79072805 |
569 | { |
76e3520e |
570 | #ifdef PERL_OBJECT |
565764a8 |
571 | Safefree(this); |
76e3520e |
572 | #else |
cea2e8a9 |
573 | # if !defined(PERL_IMPLICIT_CONTEXT) |
574 | if (!(PL_curinterp = my_perl)) |
79072805 |
575 | return; |
cea2e8a9 |
576 | # endif |
577 | Safefree(my_perl); |
76e3520e |
578 | #endif |
79072805 |
579 | } |
580 | |
4b556e6c |
581 | void |
864dbfa3 |
582 | Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr) |
4b556e6c |
583 | { |
3280af22 |
584 | Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry); |
585 | PL_exitlist[PL_exitlistlen].fn = fn; |
586 | PL_exitlist[PL_exitlistlen].ptr = ptr; |
587 | ++PL_exitlistlen; |
4b556e6c |
588 | } |
589 | |
79072805 |
590 | int |
cea2e8a9 |
591 | perl_parse(PerlInterpreter *my_perl, XSINIT_t xsinit, int argc, char **argv, char **env) |
8d063cd8 |
592 | { |
11343788 |
593 | dTHR; |
6224f72b |
594 | I32 oldscope; |
6224f72b |
595 | int ret; |
cea2e8a9 |
596 | #ifdef USE_THREADS |
597 | dTHX; |
598 | #endif |
8d063cd8 |
599 | |
a687059c |
600 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
601 | #ifdef IAMSUID |
602 | #undef IAMSUID |
cea2e8a9 |
603 | Perl_croak(aTHX_ "suidperl is no longer needed since the kernel can now execute\n\ |
a687059c |
604 | setuid perl scripts securely.\n"); |
605 | #endif |
606 | #endif |
607 | |
cea2e8a9 |
608 | #if !defined(PERL_OBJECT) && !defined(PERL_IMPLICIT_CONTEXT) |
609 | if (!(PL_curinterp = my_perl)) |
79072805 |
610 | return 255; |
76e3520e |
611 | #endif |
79072805 |
612 | |
8f1f23e8 |
613 | #if defined(__DYNAMIC__) && (defined(NeXT) || defined(__NeXT__)) |
6e72f9df |
614 | _dyld_lookup_and_bind |
615 | ("__environ", (unsigned long *) &environ_pointer, NULL); |
616 | #endif /* environ */ |
617 | |
3280af22 |
618 | PL_origargv = argv; |
619 | PL_origargc = argc; |
a0d0e21e |
620 | #ifndef VMS /* VMS doesn't have environ array */ |
3280af22 |
621 | PL_origenviron = environ; |
a0d0e21e |
622 | #endif |
623 | |
3280af22 |
624 | if (PL_do_undump) { |
a0d0e21e |
625 | |
626 | /* Come here if running an undumped a.out. */ |
627 | |
3280af22 |
628 | PL_origfilename = savepv(argv[0]); |
629 | PL_do_undump = FALSE; |
a0d0e21e |
630 | cxstack_ix = -1; /* start label stack again */ |
748a9306 |
631 | init_ids(); |
a0d0e21e |
632 | init_postdump_symbols(argc,argv,env); |
633 | return 0; |
634 | } |
635 | |
3280af22 |
636 | if (PL_main_root) { |
637 | PL_curpad = AvARRAY(PL_comppad); |
638 | op_free(PL_main_root); |
639 | PL_main_root = Nullop; |
ff0cee69 |
640 | } |
3280af22 |
641 | PL_main_start = Nullop; |
642 | SvREFCNT_dec(PL_main_cv); |
643 | PL_main_cv = Nullcv; |
79072805 |
644 | |
3280af22 |
645 | time(&PL_basetime); |
646 | oldscope = PL_scopestack_ix; |
599cee73 |
647 | PL_dowarn = G_WARN_OFF; |
f86702cc |
648 | |
cea2e8a9 |
649 | CALLPROTECT(aTHX_ &ret, FUNC_NAME_TO_PTR(S_parse_body), env, xsinit); |
6224f72b |
650 | switch (ret) { |
312caa8e |
651 | case 0: |
652 | return 0; |
6224f72b |
653 | case 1: |
654 | STATUS_ALL_FAILURE; |
655 | /* FALL THROUGH */ |
656 | case 2: |
657 | /* my_exit() was called */ |
3280af22 |
658 | while (PL_scopestack_ix > oldscope) |
6224f72b |
659 | LEAVE; |
660 | FREETMPS; |
3280af22 |
661 | PL_curstash = PL_defstash; |
662 | if (PL_endav) |
663 | call_list(oldscope, PL_endav); |
6224f72b |
664 | return STATUS_NATIVE_EXPORT; |
665 | case 3: |
6224f72b |
666 | PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); |
667 | return 1; |
668 | } |
a6c40364 |
669 | return 0; |
312caa8e |
670 | } |
671 | |
672 | STATIC void * |
cea2e8a9 |
673 | S_parse_body(pTHX_ va_list args) |
312caa8e |
674 | { |
675 | dTHR; |
676 | int argc = PL_origargc; |
677 | char **argv = PL_origargv; |
678 | char **env = va_arg(args, char**); |
679 | char *scriptname = NULL; |
680 | int fdscript = -1; |
681 | VOL bool dosearch = FALSE; |
682 | char *validarg = ""; |
683 | AV* comppadlist; |
684 | register SV *sv; |
685 | register char *s; |
686 | |
864dbfa3 |
687 | XSINIT_t xsinit = va_arg(args, XSINIT_t); |
79072805 |
688 | |
3280af22 |
689 | sv_setpvn(PL_linestr,"",0); |
79cb57f6 |
690 | sv = newSVpvn("",0); /* first used for -I flags */ |
6224f72b |
691 | SAVEFREESV(sv); |
692 | init_main_stash(); |
54310121 |
693 | |
6224f72b |
694 | for (argc--,argv++; argc > 0; argc--,argv++) { |
695 | if (argv[0][0] != '-' || !argv[0][1]) |
696 | break; |
697 | #ifdef DOSUID |
698 | if (*validarg) |
699 | validarg = " PHOOEY "; |
700 | else |
701 | validarg = argv[0]; |
13281fa4 |
702 | #endif |
6224f72b |
703 | s = argv[0]+1; |
704 | reswitch: |
705 | switch (*s) { |
1d5472a9 |
706 | #ifndef PERL_STRICT_CR |
707 | case '\r': |
708 | #endif |
6224f72b |
709 | case ' ': |
710 | case '0': |
711 | case 'F': |
712 | case 'a': |
713 | case 'c': |
714 | case 'd': |
715 | case 'D': |
716 | case 'h': |
717 | case 'i': |
718 | case 'l': |
719 | case 'M': |
720 | case 'm': |
721 | case 'n': |
722 | case 'p': |
723 | case 's': |
724 | case 'u': |
725 | case 'U': |
726 | case 'v': |
599cee73 |
727 | case 'W': |
728 | case 'X': |
6224f72b |
729 | case 'w': |
730 | if (s = moreswitches(s)) |
731 | goto reswitch; |
732 | break; |
33b78306 |
733 | |
6224f72b |
734 | case 'T': |
3280af22 |
735 | PL_tainting = TRUE; |
6224f72b |
736 | s++; |
737 | goto reswitch; |
f86702cc |
738 | |
6224f72b |
739 | case 'e': |
3280af22 |
740 | if (PL_euid != PL_uid || PL_egid != PL_gid) |
cea2e8a9 |
741 | Perl_croak(aTHX_ "No -e allowed in setuid scripts"); |
3280af22 |
742 | if (!PL_e_script) { |
79cb57f6 |
743 | PL_e_script = newSVpvn("",0); |
cea2e8a9 |
744 | filter_add(S_read_e_script, NULL); |
6224f72b |
745 | } |
746 | if (*++s) |
3280af22 |
747 | sv_catpv(PL_e_script, s); |
6224f72b |
748 | else if (argv[1]) { |
3280af22 |
749 | sv_catpv(PL_e_script, argv[1]); |
6224f72b |
750 | argc--,argv++; |
751 | } |
752 | else |
cea2e8a9 |
753 | Perl_croak(aTHX_ "No code specified for -e"); |
3280af22 |
754 | sv_catpv(PL_e_script, "\n"); |
6224f72b |
755 | break; |
afe37c7d |
756 | |
6224f72b |
757 | case 'I': /* -I handled both here and in moreswitches() */ |
758 | forbid_setid("-I"); |
759 | if (!*++s && (s=argv[1]) != Nullch) { |
760 | argc--,argv++; |
761 | } |
762 | while (s && isSPACE(*s)) |
763 | ++s; |
764 | if (s && *s) { |
765 | char *e, *p; |
766 | for (e = s; *e && !isSPACE(*e); e++) ; |
767 | p = savepvn(s, e-s); |
768 | incpush(p, TRUE); |
769 | sv_catpv(sv,"-I"); |
770 | sv_catpv(sv,p); |
771 | sv_catpv(sv," "); |
772 | Safefree(p); |
773 | } /* XXX else croak? */ |
774 | break; |
775 | case 'P': |
776 | forbid_setid("-P"); |
3280af22 |
777 | PL_preprocess = TRUE; |
6224f72b |
778 | s++; |
779 | goto reswitch; |
780 | case 'S': |
781 | forbid_setid("-S"); |
782 | dosearch = TRUE; |
783 | s++; |
784 | goto reswitch; |
785 | case 'V': |
3280af22 |
786 | if (!PL_preambleav) |
787 | PL_preambleav = newAV(); |
788 | av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0)); |
6224f72b |
789 | if (*++s != ':') { |
3280af22 |
790 | PL_Sv = newSVpv("print myconfig();",0); |
6224f72b |
791 | #ifdef VMS |
6b88bc9c |
792 | sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\","); |
6224f72b |
793 | #else |
3280af22 |
794 | sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\","); |
6224f72b |
795 | #endif |
22c35a8c |
796 | #if defined(DEBUGGING) || defined(MULTIPLICITY) |
3280af22 |
797 | sv_catpv(PL_Sv,"\" Compile-time options:"); |
6224f72b |
798 | # ifdef DEBUGGING |
3280af22 |
799 | sv_catpv(PL_Sv," DEBUGGING"); |
6224f72b |
800 | # endif |
6224f72b |
801 | # ifdef MULTIPLICITY |
8f872242 |
802 | sv_catpv(PL_Sv," MULTIPLICITY"); |
6224f72b |
803 | # endif |
3280af22 |
804 | sv_catpv(PL_Sv,"\\n\","); |
6224f72b |
805 | #endif |
806 | #if defined(LOCAL_PATCH_COUNT) |
807 | if (LOCAL_PATCH_COUNT > 0) { |
808 | int i; |
3280af22 |
809 | sv_catpv(PL_Sv,"\" Locally applied patches:\\n\","); |
6224f72b |
810 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { |
3280af22 |
811 | if (PL_localpatches[i]) |
cea2e8a9 |
812 | Perl_sv_catpvf(aTHX_ PL_Sv,"q\" \t%s\n\",",PL_localpatches[i]); |
6224f72b |
813 | } |
814 | } |
815 | #endif |
cea2e8a9 |
816 | Perl_sv_catpvf(aTHX_ PL_Sv,"\" Built under %s\\n\"",OSNAME); |
6224f72b |
817 | #ifdef __DATE__ |
818 | # ifdef __TIME__ |
cea2e8a9 |
819 | Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__); |
6224f72b |
820 | # else |
cea2e8a9 |
821 | Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled on %s\\n\"",__DATE__); |
6224f72b |
822 | # endif |
823 | #endif |
3280af22 |
824 | sv_catpv(PL_Sv, "; \ |
6224f72b |
825 | $\"=\"\\n \"; \ |
826 | @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; \ |
827 | print \" \\%ENV:\\n @env\\n\" if @env; \ |
828 | print \" \\@INC:\\n @INC\\n\";"); |
829 | } |
830 | else { |
3280af22 |
831 | PL_Sv = newSVpv("config_vars(qw(",0); |
832 | sv_catpv(PL_Sv, ++s); |
833 | sv_catpv(PL_Sv, "))"); |
6224f72b |
834 | s += strlen(s); |
835 | } |
3280af22 |
836 | av_push(PL_preambleav, PL_Sv); |
6224f72b |
837 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
838 | goto reswitch; |
839 | case 'x': |
3280af22 |
840 | PL_doextract = TRUE; |
6224f72b |
841 | s++; |
842 | if (*s) |
3280af22 |
843 | PL_cddir = savepv(s); |
6224f72b |
844 | break; |
845 | case 0: |
846 | break; |
847 | case '-': |
848 | if (!*++s || isSPACE(*s)) { |
849 | argc--,argv++; |
850 | goto switch_end; |
851 | } |
852 | /* catch use of gnu style long options */ |
853 | if (strEQ(s, "version")) { |
854 | s = "v"; |
855 | goto reswitch; |
856 | } |
857 | if (strEQ(s, "help")) { |
858 | s = "h"; |
859 | goto reswitch; |
860 | } |
861 | s--; |
862 | /* FALL THROUGH */ |
863 | default: |
cea2e8a9 |
864 | Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s); |
8d063cd8 |
865 | } |
866 | } |
6224f72b |
867 | switch_end: |
54310121 |
868 | |
f675dbe5 |
869 | if ( |
870 | #ifndef SECURE_INTERNAL_GETENV |
871 | !PL_tainting && |
872 | #endif |
873 | (s = PerlEnv_getenv("PERL5OPT"))) { |
74288ac8 |
874 | while (isSPACE(*s)) |
875 | s++; |
876 | if (*s == '-' && *(s+1) == 'T') |
877 | PL_tainting = TRUE; |
878 | else { |
879 | while (s && *s) { |
880 | while (isSPACE(*s)) |
881 | s++; |
882 | if (*s == '-') { |
883 | s++; |
884 | if (isSPACE(*s)) |
885 | continue; |
886 | } |
887 | if (!*s) |
888 | break; |
889 | if (!strchr("DIMUdmw", *s)) |
cea2e8a9 |
890 | Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s); |
74288ac8 |
891 | s = moreswitches(s); |
6224f72b |
892 | } |
6224f72b |
893 | } |
894 | } |
a0d0e21e |
895 | |
6224f72b |
896 | if (!scriptname) |
897 | scriptname = argv[0]; |
3280af22 |
898 | if (PL_e_script) { |
6224f72b |
899 | argc++,argv--; |
900 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
901 | } |
902 | else if (scriptname == Nullch) { |
903 | #ifdef MSDOS |
904 | if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) ) |
905 | moreswitches("h"); |
906 | #endif |
907 | scriptname = "-"; |
908 | } |
909 | |
910 | init_perllib(); |
911 | |
912 | open_script(scriptname,dosearch,sv,&fdscript); |
913 | |
914 | validate_suid(validarg, scriptname,fdscript); |
915 | |
3280af22 |
916 | if (PL_doextract) |
6224f72b |
917 | find_beginning(); |
918 | |
3280af22 |
919 | PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0); |
920 | sv_upgrade((SV *)PL_compcv, SVt_PVCV); |
921 | CvUNIQUE_on(PL_compcv); |
922 | |
923 | PL_comppad = newAV(); |
924 | av_push(PL_comppad, Nullsv); |
925 | PL_curpad = AvARRAY(PL_comppad); |
926 | PL_comppad_name = newAV(); |
927 | PL_comppad_name_fill = 0; |
928 | PL_min_intro_pending = 0; |
929 | PL_padix = 0; |
6224f72b |
930 | #ifdef USE_THREADS |
79cb57f6 |
931 | av_store(PL_comppad_name, 0, newSVpvn("@_", 2)); |
533c011a |
932 | PL_curpad[0] = (SV*)newAV(); |
933 | SvPADMY_on(PL_curpad[0]); /* XXX Needed? */ |
934 | CvOWNER(PL_compcv) = 0; |
935 | New(666, CvMUTEXP(PL_compcv), 1, perl_mutex); |
936 | MUTEX_INIT(CvMUTEXP(PL_compcv)); |
6224f72b |
937 | #endif /* USE_THREADS */ |
938 | |
939 | comppadlist = newAV(); |
940 | AvREAL_off(comppadlist); |
3280af22 |
941 | av_store(comppadlist, 0, (SV*)PL_comppad_name); |
942 | av_store(comppadlist, 1, (SV*)PL_comppad); |
943 | CvPADLIST(PL_compcv) = comppadlist; |
6224f72b |
944 | |
945 | boot_core_UNIVERSAL(); |
946 | |
947 | if (xsinit) |
cea2e8a9 |
948 | (*xsinit)(aTHX); /* in case linked C routines want magical variables */ |
6224f72b |
949 | #if defined(VMS) || defined(WIN32) || defined(DJGPP) |
4f63d024 |
950 | init_os_extras(aTHX); |
6224f72b |
951 | #endif |
952 | |
953 | init_predump_symbols(); |
954 | /* init_postdump_symbols not currently designed to be called */ |
955 | /* more than once (ENV isn't cleared first, for example) */ |
956 | /* But running with -u leaves %ENV & @ARGV undefined! XXX */ |
3280af22 |
957 | if (!PL_do_undump) |
6224f72b |
958 | init_postdump_symbols(argc,argv,env); |
959 | |
960 | init_lexer(); |
961 | |
962 | /* now parse the script */ |
963 | |
964 | SETERRNO(0,SS$_NORMAL); |
3280af22 |
965 | PL_error_count = 0; |
966 | if (yyparse() || PL_error_count) { |
967 | if (PL_minus_c) |
cea2e8a9 |
968 | Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename); |
6224f72b |
969 | else { |
cea2e8a9 |
970 | Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", |
3280af22 |
971 | PL_origfilename); |
6224f72b |
972 | } |
973 | } |
3280af22 |
974 | PL_curcop->cop_line = 0; |
975 | PL_curstash = PL_defstash; |
976 | PL_preprocess = FALSE; |
977 | if (PL_e_script) { |
978 | SvREFCNT_dec(PL_e_script); |
979 | PL_e_script = Nullsv; |
6224f72b |
980 | } |
981 | |
982 | /* now that script is parsed, we can modify record separator */ |
3280af22 |
983 | SvREFCNT_dec(PL_rs); |
984 | PL_rs = SvREFCNT_inc(PL_nrs); |
864dbfa3 |
985 | sv_setsv(get_sv("/", TRUE), PL_rs); |
3280af22 |
986 | if (PL_do_undump) |
6224f72b |
987 | my_unexec(); |
988 | |
599cee73 |
989 | if (ckWARN(WARN_ONCE)) |
3280af22 |
990 | gv_check(PL_defstash); |
6224f72b |
991 | |
992 | LEAVE; |
993 | FREETMPS; |
994 | |
995 | #ifdef MYMALLOC |
996 | if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) |
997 | dump_mstats("after compilation:"); |
998 | #endif |
999 | |
1000 | ENTER; |
3280af22 |
1001 | PL_restartop = 0; |
312caa8e |
1002 | return NULL; |
6224f72b |
1003 | } |
1004 | |
1005 | int |
cea2e8a9 |
1006 | perl_run(PerlInterpreter *my_perl) |
6224f72b |
1007 | { |
de616352 |
1008 | dTHR; |
6224f72b |
1009 | I32 oldscope; |
6224f72b |
1010 | int ret; |
cea2e8a9 |
1011 | #ifdef USE_THREADS |
1012 | dTHX; |
1013 | #endif |
6224f72b |
1014 | |
cea2e8a9 |
1015 | #if !defined(PERL_OBJECT) && !defined(PERL_IMPLICIT_CONTEXT) |
1016 | if (!(PL_curinterp = my_perl)) |
6224f72b |
1017 | return 255; |
1018 | #endif |
1019 | |
3280af22 |
1020 | oldscope = PL_scopestack_ix; |
6224f72b |
1021 | |
312caa8e |
1022 | redo_body: |
cea2e8a9 |
1023 | CALLPROTECT(aTHX_ &ret, FUNC_NAME_TO_PTR(S_run_body), oldscope); |
6224f72b |
1024 | switch (ret) { |
1025 | case 1: |
1026 | cxstack_ix = -1; /* start context stack again */ |
312caa8e |
1027 | goto redo_body; |
1028 | case 0: /* normal completion */ |
1029 | case 2: /* my_exit() */ |
3280af22 |
1030 | while (PL_scopestack_ix > oldscope) |
6224f72b |
1031 | LEAVE; |
1032 | FREETMPS; |
3280af22 |
1033 | PL_curstash = PL_defstash; |
1034 | if (PL_endav) |
1035 | call_list(oldscope, PL_endav); |
6224f72b |
1036 | #ifdef MYMALLOC |
1037 | if (PerlEnv_getenv("PERL_DEBUG_MSTATS")) |
1038 | dump_mstats("after execution: "); |
1039 | #endif |
6224f72b |
1040 | return STATUS_NATIVE_EXPORT; |
1041 | case 3: |
312caa8e |
1042 | if (PL_restartop) { |
1043 | POPSTACK_TO(PL_mainstack); |
1044 | goto redo_body; |
6224f72b |
1045 | } |
312caa8e |
1046 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
1047 | FREETMPS; |
1048 | return 1; |
6224f72b |
1049 | } |
1050 | |
312caa8e |
1051 | /* NOTREACHED */ |
1052 | return 0; |
1053 | } |
1054 | |
1055 | STATIC void * |
cea2e8a9 |
1056 | S_run_body(pTHX_ va_list args) |
312caa8e |
1057 | { |
1058 | dTHR; |
1059 | I32 oldscope = va_arg(args, I32); |
1060 | |
6224f72b |
1061 | DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n", |
3280af22 |
1062 | PL_sawampersand ? "Enabling" : "Omitting")); |
6224f72b |
1063 | |
3280af22 |
1064 | if (!PL_restartop) { |
6224f72b |
1065 | DEBUG_x(dump_all()); |
1066 | DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); |
8b73bbec |
1067 | DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%lx\n", |
6224f72b |
1068 | (unsigned long) thr)); |
6224f72b |
1069 | |
3280af22 |
1070 | if (PL_minus_c) { |
1071 | PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", PL_origfilename); |
6224f72b |
1072 | my_exit(0); |
1073 | } |
3280af22 |
1074 | if (PERLDB_SINGLE && PL_DBsingle) |
312caa8e |
1075 | sv_setiv(PL_DBsingle, 1); |
3280af22 |
1076 | if (PL_initav) |
1077 | call_list(oldscope, PL_initav); |
6224f72b |
1078 | } |
1079 | |
1080 | /* do it */ |
1081 | |
3280af22 |
1082 | if (PL_restartop) { |
533c011a |
1083 | PL_op = PL_restartop; |
3280af22 |
1084 | PL_restartop = 0; |
cea2e8a9 |
1085 | CALLRUNOPS(aTHX); |
6224f72b |
1086 | } |
3280af22 |
1087 | else if (PL_main_start) { |
1088 | CvDEPTH(PL_main_cv) = 1; |
533c011a |
1089 | PL_op = PL_main_start; |
cea2e8a9 |
1090 | CALLRUNOPS(aTHX); |
6224f72b |
1091 | } |
1092 | |
312caa8e |
1093 | return NULL; |
6224f72b |
1094 | } |
1095 | |
1096 | SV* |
864dbfa3 |
1097 | Perl_get_sv(pTHX_ const char *name, I32 create) |
6224f72b |
1098 | { |
1099 | GV *gv; |
1100 | #ifdef USE_THREADS |
1101 | if (name[1] == '\0' && !isALPHA(name[0])) { |
1102 | PADOFFSET tmp = find_threadsv(name); |
1103 | if (tmp != NOT_IN_PAD) { |
1104 | dTHR; |
1105 | return THREADSV(tmp); |
1106 | } |
1107 | } |
1108 | #endif /* USE_THREADS */ |
1109 | gv = gv_fetchpv(name, create, SVt_PV); |
1110 | if (gv) |
1111 | return GvSV(gv); |
1112 | return Nullsv; |
1113 | } |
1114 | |
1115 | AV* |
864dbfa3 |
1116 | Perl_get_av(pTHX_ const char *name, I32 create) |
6224f72b |
1117 | { |
1118 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); |
1119 | if (create) |
1120 | return GvAVn(gv); |
1121 | if (gv) |
1122 | return GvAV(gv); |
1123 | return Nullav; |
1124 | } |
1125 | |
1126 | HV* |
864dbfa3 |
1127 | Perl_get_hv(pTHX_ const char *name, I32 create) |
6224f72b |
1128 | { |
a0d0e21e |
1129 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); |
1130 | if (create) |
1131 | return GvHVn(gv); |
1132 | if (gv) |
1133 | return GvHV(gv); |
1134 | return Nullhv; |
1135 | } |
1136 | |
1137 | CV* |
864dbfa3 |
1138 | Perl_get_cv(pTHX_ const char *name, I32 create) |
a0d0e21e |
1139 | { |
1140 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); |
b099ddc0 |
1141 | /* XXX unsafe for threads if eval_owner isn't held */ |
f6ec51f7 |
1142 | /* XXX this is probably not what they think they're getting. |
1143 | * It has the same effect as "sub name;", i.e. just a forward |
1144 | * declaration! */ |
8ebc5c01 |
1145 | if (create && !GvCVu(gv)) |
774d564b |
1146 | return newSUB(start_subparse(FALSE, 0), |
a0d0e21e |
1147 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
4633a7c4 |
1148 | Nullop, |
a0d0e21e |
1149 | Nullop); |
1150 | if (gv) |
8ebc5c01 |
1151 | return GvCVu(gv); |
a0d0e21e |
1152 | return Nullcv; |
1153 | } |
1154 | |
79072805 |
1155 | /* Be sure to refetch the stack pointer after calling these routines. */ |
1156 | |
a0d0e21e |
1157 | I32 |
864dbfa3 |
1158 | Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv) |
8ac85365 |
1159 | |
1160 | /* See G_* flags in cop.h */ |
1161 | /* null terminated arg list */ |
8990e307 |
1162 | { |
a0d0e21e |
1163 | dSP; |
8990e307 |
1164 | |
924508f0 |
1165 | PUSHMARK(SP); |
a0d0e21e |
1166 | if (argv) { |
8990e307 |
1167 | while (*argv) { |
a0d0e21e |
1168 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 |
1169 | argv++; |
1170 | } |
a0d0e21e |
1171 | PUTBACK; |
8990e307 |
1172 | } |
864dbfa3 |
1173 | return call_pv(sub_name, flags); |
8990e307 |
1174 | } |
1175 | |
a0d0e21e |
1176 | I32 |
864dbfa3 |
1177 | Perl_call_pv(pTHX_ const char *sub_name, I32 flags) |
8ac85365 |
1178 | /* name of the subroutine */ |
1179 | /* See G_* flags in cop.h */ |
a0d0e21e |
1180 | { |
864dbfa3 |
1181 | return call_sv((SV*)get_cv(sub_name, TRUE), flags); |
a0d0e21e |
1182 | } |
1183 | |
1184 | I32 |
864dbfa3 |
1185 | Perl_call_method(pTHX_ const char *methname, I32 flags) |
8ac85365 |
1186 | /* name of the subroutine */ |
1187 | /* See G_* flags in cop.h */ |
a0d0e21e |
1188 | { |
1189 | dSP; |
1190 | OP myop; |
533c011a |
1191 | if (!PL_op) |
1192 | PL_op = &myop; |
a0d0e21e |
1193 | XPUSHs(sv_2mortal(newSVpv(methname,0))); |
1194 | PUTBACK; |
cea2e8a9 |
1195 | pp_method(); |
533c011a |
1196 | if(PL_op == &myop) |
1197 | PL_op = Nullop; |
864dbfa3 |
1198 | return call_sv(*PL_stack_sp--, flags); |
a0d0e21e |
1199 | } |
1200 | |
1201 | /* May be called with any of a CV, a GV, or an SV containing the name. */ |
1202 | I32 |
864dbfa3 |
1203 | Perl_call_sv(pTHX_ SV *sv, I32 flags) |
8ac85365 |
1204 | |
1205 | /* See G_* flags in cop.h */ |
a0d0e21e |
1206 | { |
924508f0 |
1207 | dSP; |
a0d0e21e |
1208 | LOGOP myop; /* fake syntax tree node */ |
aa689395 |
1209 | I32 oldmark; |
a0d0e21e |
1210 | I32 retval; |
a0d0e21e |
1211 | I32 oldscope; |
54310121 |
1212 | bool oldcatch = CATCH_GET; |
6224f72b |
1213 | int ret; |
533c011a |
1214 | OP* oldop = PL_op; |
1e422769 |
1215 | |
a0d0e21e |
1216 | if (flags & G_DISCARD) { |
1217 | ENTER; |
1218 | SAVETMPS; |
1219 | } |
1220 | |
aa689395 |
1221 | Zero(&myop, 1, LOGOP); |
54310121 |
1222 | myop.op_next = Nullop; |
f51d4af5 |
1223 | if (!(flags & G_NOARGS)) |
aa689395 |
1224 | myop.op_flags |= OPf_STACKED; |
54310121 |
1225 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
1226 | (flags & G_ARRAY) ? OPf_WANT_LIST : |
1227 | OPf_WANT_SCALAR); |
462e5cf6 |
1228 | SAVEOP(); |
533c011a |
1229 | PL_op = (OP*)&myop; |
aa689395 |
1230 | |
3280af22 |
1231 | EXTEND(PL_stack_sp, 1); |
1232 | *++PL_stack_sp = sv; |
aa689395 |
1233 | oldmark = TOPMARK; |
3280af22 |
1234 | oldscope = PL_scopestack_ix; |
a0d0e21e |
1235 | |
3280af22 |
1236 | if (PERLDB_SUB && PL_curstash != PL_debstash |
36477c24 |
1237 | /* Handle first BEGIN of -d. */ |
3280af22 |
1238 | && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub))) |
36477c24 |
1239 | /* Try harder, since this may have been a sighandler, thus |
1240 | * curstash may be meaningless. */ |
3280af22 |
1241 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash) |
491527d0 |
1242 | && !(flags & G_NODEBUG)) |
533c011a |
1243 | PL_op->op_private |= OPpENTERSUB_DB; |
a0d0e21e |
1244 | |
312caa8e |
1245 | if (!(flags & G_EVAL)) { |
1246 | CATCH_SET(TRUE); |
864dbfa3 |
1247 | call_xbody((OP*)&myop, FALSE); |
312caa8e |
1248 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
1249 | CATCH_SET(FALSE); |
1250 | } |
1251 | else { |
533c011a |
1252 | cLOGOP->op_other = PL_op; |
3280af22 |
1253 | PL_markstack_ptr--; |
4633a7c4 |
1254 | /* we're trying to emulate pp_entertry() here */ |
1255 | { |
c09156bb |
1256 | register PERL_CONTEXT *cx; |
54310121 |
1257 | I32 gimme = GIMME_V; |
4633a7c4 |
1258 | |
1259 | ENTER; |
1260 | SAVETMPS; |
1261 | |
533c011a |
1262 | push_return(PL_op->op_next); |
3280af22 |
1263 | PUSHBLOCK(cx, CXt_EVAL, PL_stack_sp); |
4633a7c4 |
1264 | PUSHEVAL(cx, 0, 0); |
533c011a |
1265 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ |
4633a7c4 |
1266 | |
faef0170 |
1267 | PL_in_eval = EVAL_INEVAL; |
4633a7c4 |
1268 | if (flags & G_KEEPERR) |
faef0170 |
1269 | PL_in_eval |= EVAL_KEEPERR; |
4633a7c4 |
1270 | else |
38a03e6e |
1271 | sv_setpv(ERRSV,""); |
4633a7c4 |
1272 | } |
3280af22 |
1273 | PL_markstack_ptr++; |
a0d0e21e |
1274 | |
312caa8e |
1275 | redo_body: |
cea2e8a9 |
1276 | CALLPROTECT(aTHX_ &ret, FUNC_NAME_TO_PTR(S_call_body), (OP*)&myop, FALSE); |
6224f72b |
1277 | switch (ret) { |
1278 | case 0: |
312caa8e |
1279 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
1280 | if (!(flags & G_KEEPERR)) |
1281 | sv_setpv(ERRSV,""); |
a0d0e21e |
1282 | break; |
6224f72b |
1283 | case 1: |
f86702cc |
1284 | STATUS_ALL_FAILURE; |
a0d0e21e |
1285 | /* FALL THROUGH */ |
6224f72b |
1286 | case 2: |
a0d0e21e |
1287 | /* my_exit() was called */ |
3280af22 |
1288 | PL_curstash = PL_defstash; |
a0d0e21e |
1289 | FREETMPS; |
3280af22 |
1290 | if (PL_statusvalue) |
cea2e8a9 |
1291 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc |
1292 | my_exit_jump(); |
a0d0e21e |
1293 | /* NOTREACHED */ |
6224f72b |
1294 | case 3: |
3280af22 |
1295 | if (PL_restartop) { |
533c011a |
1296 | PL_op = PL_restartop; |
3280af22 |
1297 | PL_restartop = 0; |
312caa8e |
1298 | goto redo_body; |
a0d0e21e |
1299 | } |
3280af22 |
1300 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e |
1301 | if (flags & G_ARRAY) |
1302 | retval = 0; |
1303 | else { |
1304 | retval = 1; |
3280af22 |
1305 | *++PL_stack_sp = &PL_sv_undef; |
a0d0e21e |
1306 | } |
312caa8e |
1307 | break; |
a0d0e21e |
1308 | } |
a0d0e21e |
1309 | |
3280af22 |
1310 | if (PL_scopestack_ix > oldscope) { |
a0a2876f |
1311 | SV **newsp; |
1312 | PMOP *newpm; |
1313 | I32 gimme; |
c09156bb |
1314 | register PERL_CONTEXT *cx; |
a0a2876f |
1315 | I32 optype; |
1316 | |
1317 | POPBLOCK(cx,newpm); |
1318 | POPEVAL(cx); |
1319 | pop_return(); |
3280af22 |
1320 | PL_curpm = newpm; |
a0a2876f |
1321 | LEAVE; |
a0d0e21e |
1322 | } |
a0d0e21e |
1323 | } |
1e422769 |
1324 | |
a0d0e21e |
1325 | if (flags & G_DISCARD) { |
3280af22 |
1326 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e |
1327 | retval = 0; |
1328 | FREETMPS; |
1329 | LEAVE; |
1330 | } |
533c011a |
1331 | PL_op = oldop; |
a0d0e21e |
1332 | return retval; |
1333 | } |
1334 | |
312caa8e |
1335 | STATIC void * |
cea2e8a9 |
1336 | S_call_body(pTHX_ va_list args) |
312caa8e |
1337 | { |
1338 | OP *myop = va_arg(args, OP*); |
1339 | int is_eval = va_arg(args, int); |
1340 | |
864dbfa3 |
1341 | call_xbody(myop, is_eval); |
312caa8e |
1342 | return NULL; |
1343 | } |
1344 | |
1345 | STATIC void |
cea2e8a9 |
1346 | S_call_xbody(pTHX_ OP *myop, int is_eval) |
312caa8e |
1347 | { |
1348 | dTHR; |
1349 | |
1350 | if (PL_op == myop) { |
1351 | if (is_eval) |
cea2e8a9 |
1352 | PL_op = Perl_pp_entereval(aTHX); |
312caa8e |
1353 | else |
cea2e8a9 |
1354 | PL_op = Perl_pp_entersub(aTHX); |
312caa8e |
1355 | } |
1356 | if (PL_op) |
cea2e8a9 |
1357 | CALLRUNOPS(aTHX); |
312caa8e |
1358 | } |
1359 | |
6e72f9df |
1360 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 |
1361 | |
a0d0e21e |
1362 | I32 |
864dbfa3 |
1363 | Perl_eval_sv(pTHX_ SV *sv, I32 flags) |
8ac85365 |
1364 | |
1365 | /* See G_* flags in cop.h */ |
a0d0e21e |
1366 | { |
924508f0 |
1367 | dSP; |
a0d0e21e |
1368 | UNOP myop; /* fake syntax tree node */ |
3280af22 |
1369 | I32 oldmark = SP - PL_stack_base; |
4633a7c4 |
1370 | I32 retval; |
4633a7c4 |
1371 | I32 oldscope; |
6224f72b |
1372 | int ret; |
533c011a |
1373 | OP* oldop = PL_op; |
84902520 |
1374 | |
4633a7c4 |
1375 | if (flags & G_DISCARD) { |
1376 | ENTER; |
1377 | SAVETMPS; |
1378 | } |
1379 | |
462e5cf6 |
1380 | SAVEOP(); |
533c011a |
1381 | PL_op = (OP*)&myop; |
1382 | Zero(PL_op, 1, UNOP); |
3280af22 |
1383 | EXTEND(PL_stack_sp, 1); |
1384 | *++PL_stack_sp = sv; |
1385 | oldscope = PL_scopestack_ix; |
79072805 |
1386 | |
4633a7c4 |
1387 | if (!(flags & G_NOARGS)) |
1388 | myop.op_flags = OPf_STACKED; |
79072805 |
1389 | myop.op_next = Nullop; |
6e72f9df |
1390 | myop.op_type = OP_ENTEREVAL; |
54310121 |
1391 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
1392 | (flags & G_ARRAY) ? OPf_WANT_LIST : |
1393 | OPf_WANT_SCALAR); |
6e72f9df |
1394 | if (flags & G_KEEPERR) |
1395 | myop.op_flags |= OPf_SPECIAL; |
4633a7c4 |
1396 | |
312caa8e |
1397 | redo_body: |
cea2e8a9 |
1398 | CALLPROTECT(aTHX_ &ret, FUNC_NAME_TO_PTR(S_call_body), (OP*)&myop, TRUE); |
6224f72b |
1399 | switch (ret) { |
1400 | case 0: |
312caa8e |
1401 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
1402 | if (!(flags & G_KEEPERR)) |
1403 | sv_setpv(ERRSV,""); |
4633a7c4 |
1404 | break; |
6224f72b |
1405 | case 1: |
f86702cc |
1406 | STATUS_ALL_FAILURE; |
4633a7c4 |
1407 | /* FALL THROUGH */ |
6224f72b |
1408 | case 2: |
4633a7c4 |
1409 | /* my_exit() was called */ |
3280af22 |
1410 | PL_curstash = PL_defstash; |
4633a7c4 |
1411 | FREETMPS; |
3280af22 |
1412 | if (PL_statusvalue) |
cea2e8a9 |
1413 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc |
1414 | my_exit_jump(); |
4633a7c4 |
1415 | /* NOTREACHED */ |
6224f72b |
1416 | case 3: |
3280af22 |
1417 | if (PL_restartop) { |
533c011a |
1418 | PL_op = PL_restartop; |
3280af22 |
1419 | PL_restartop = 0; |
312caa8e |
1420 | goto redo_body; |
4633a7c4 |
1421 | } |
3280af22 |
1422 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 |
1423 | if (flags & G_ARRAY) |
1424 | retval = 0; |
1425 | else { |
1426 | retval = 1; |
3280af22 |
1427 | *++PL_stack_sp = &PL_sv_undef; |
4633a7c4 |
1428 | } |
312caa8e |
1429 | break; |
4633a7c4 |
1430 | } |
1431 | |
4633a7c4 |
1432 | if (flags & G_DISCARD) { |
3280af22 |
1433 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 |
1434 | retval = 0; |
1435 | FREETMPS; |
1436 | LEAVE; |
1437 | } |
533c011a |
1438 | PL_op = oldop; |
4633a7c4 |
1439 | return retval; |
1440 | } |
1441 | |
137443ea |
1442 | SV* |
864dbfa3 |
1443 | Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error) |
137443ea |
1444 | { |
1445 | dSP; |
1446 | SV* sv = newSVpv(p, 0); |
1447 | |
924508f0 |
1448 | PUSHMARK(SP); |
864dbfa3 |
1449 | eval_sv(sv, G_SCALAR); |
137443ea |
1450 | SvREFCNT_dec(sv); |
1451 | |
1452 | SPAGAIN; |
1453 | sv = POPs; |
1454 | PUTBACK; |
1455 | |
2d8e6c8d |
1456 | if (croak_on_error && SvTRUE(ERRSV)) { |
1457 | STRLEN n_a; |
cea2e8a9 |
1458 | Perl_croak(aTHX_ SvPVx(ERRSV, n_a)); |
2d8e6c8d |
1459 | } |
137443ea |
1460 | |
1461 | return sv; |
1462 | } |
1463 | |
4633a7c4 |
1464 | /* Require a module. */ |
1465 | |
1466 | void |
864dbfa3 |
1467 | Perl_require_pv(pTHX_ const char *pv) |
4633a7c4 |
1468 | { |
d3acc0f7 |
1469 | SV* sv; |
1470 | dSP; |
e788e7d3 |
1471 | PUSHSTACKi(PERLSI_REQUIRE); |
d3acc0f7 |
1472 | PUTBACK; |
1473 | sv = sv_newmortal(); |
4633a7c4 |
1474 | sv_setpv(sv, "require '"); |
1475 | sv_catpv(sv, pv); |
1476 | sv_catpv(sv, "'"); |
864dbfa3 |
1477 | eval_sv(sv, G_DISCARD); |
d3acc0f7 |
1478 | SPAGAIN; |
1479 | POPSTACK; |
79072805 |
1480 | } |
1481 | |
79072805 |
1482 | void |
864dbfa3 |
1483 | Perl_magicname(pTHX_ char *sym, char *name, I32 namlen) |
79072805 |
1484 | { |
1485 | register GV *gv; |
1486 | |
85e6fe83 |
1487 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 |
1488 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
1489 | } |
1490 | |
76e3520e |
1491 | STATIC void |
cea2e8a9 |
1492 | S_usage(pTHX_ char *name) /* XXX move this out into a module ? */ |
4633a7c4 |
1493 | { |
ab821d7f |
1494 | /* This message really ought to be max 23 lines. |
1495 | * Removed -h because the user already knows that opton. Others? */ |
fb73857a |
1496 | |
76e3520e |
1497 | static char *usage_msg[] = { |
fb73857a |
1498 | "-0[octal] specify record separator (\\0, if no argument)", |
1499 | "-a autosplit mode with -n or -p (splits $_ into @F)", |
1500 | "-c check syntax only (runs BEGIN and END blocks)", |
aac3bd0d |
1501 | "-d[:debugger] run program under debugger", |
1502 | "-D[number/list] set debugging flags (argument is a bit mask or alphabets)", |
1503 | "-e 'command' one line of program (several -e's allowed, omit programfile)", |
1504 | "-F/pattern/ split() pattern for -a switch (//'s are optional)", |
1505 | "-i[extension] edit <> files in place (makes backup if extension supplied)", |
1506 | "-Idirectory specify @INC/#include directory (several -I's allowed)", |
fb73857a |
1507 | "-l[octal] enable line ending processing, specifies line terminator", |
aac3bd0d |
1508 | "-[mM][-]module execute `use/no module...' before executing program", |
1509 | "-n assume 'while (<>) { ... }' loop around program", |
1510 | "-p assume loop like -n but print line also, like sed", |
1511 | "-P run program through C preprocessor before compilation", |
1512 | "-s enable rudimentary parsing for switches after programfile", |
1513 | "-S look for programfile using PATH environment variable", |
1514 | "-T enable tainting checks", |
1515 | "-u dump core after parsing program", |
fb73857a |
1516 | "-U allow unsafe operations", |
aac3bd0d |
1517 | "-v print version, subversion (includes VERY IMPORTANT perl info)", |
1518 | "-V[:variable] print configuration summary (or a single Config.pm variable)", |
1519 | "-w enable many useful warnings (RECOMMENDED)", |
fb73857a |
1520 | "-x[directory] strip off text before #!perl line and perhaps cd to directory", |
1521 | "\n", |
1522 | NULL |
1523 | }; |
76e3520e |
1524 | char **p = usage_msg; |
fb73857a |
1525 | |
ab821d7f |
1526 | printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name); |
fb73857a |
1527 | while (*p) |
1528 | printf("\n %s", *p++); |
4633a7c4 |
1529 | } |
1530 | |
79072805 |
1531 | /* This routine handles any switches that can be given during run */ |
1532 | |
1533 | char * |
864dbfa3 |
1534 | Perl_moreswitches(pTHX_ char *s) |
79072805 |
1535 | { |
1536 | I32 numlen; |
c07a80fd |
1537 | U32 rschar; |
79072805 |
1538 | |
1539 | switch (*s) { |
1540 | case '0': |
a863c7d1 |
1541 | { |
1542 | dTHR; |
c07a80fd |
1543 | rschar = scan_oct(s, 4, &numlen); |
3280af22 |
1544 | SvREFCNT_dec(PL_nrs); |
c07a80fd |
1545 | if (rschar & ~((U8)~0)) |
3280af22 |
1546 | PL_nrs = &PL_sv_undef; |
c07a80fd |
1547 | else if (!rschar && numlen >= 2) |
79cb57f6 |
1548 | PL_nrs = newSVpvn("", 0); |
c07a80fd |
1549 | else { |
1550 | char ch = rschar; |
79cb57f6 |
1551 | PL_nrs = newSVpvn(&ch, 1); |
79072805 |
1552 | } |
1553 | return s + numlen; |
a863c7d1 |
1554 | } |
2304df62 |
1555 | case 'F': |
3280af22 |
1556 | PL_minus_F = TRUE; |
1557 | PL_splitstr = savepv(s + 1); |
2304df62 |
1558 | s += strlen(s); |
1559 | return s; |
79072805 |
1560 | case 'a': |
3280af22 |
1561 | PL_minus_a = TRUE; |
79072805 |
1562 | s++; |
1563 | return s; |
1564 | case 'c': |
3280af22 |
1565 | PL_minus_c = TRUE; |
79072805 |
1566 | s++; |
1567 | return s; |
1568 | case 'd': |
bbce6d69 |
1569 | forbid_setid("-d"); |
4633a7c4 |
1570 | s++; |
c07a80fd |
1571 | if (*s == ':' || *s == '=') { |
cea2e8a9 |
1572 | my_setenv("PERL5DB", Perl_form(aTHX_ "use Devel::%s;", ++s)); |
4633a7c4 |
1573 | s += strlen(s); |
4633a7c4 |
1574 | } |
3280af22 |
1575 | if (!PL_perldb) { |
1576 | PL_perldb = PERLDB_ALL; |
a0d0e21e |
1577 | init_debugger(); |
1578 | } |
79072805 |
1579 | return s; |
1580 | case 'D': |
1581 | #ifdef DEBUGGING |
bbce6d69 |
1582 | forbid_setid("-D"); |
79072805 |
1583 | if (isALPHA(s[1])) { |
8b73bbec |
1584 | static char debopts[] = "psltocPmfrxuLHXDS"; |
79072805 |
1585 | char *d; |
1586 | |
93a17b20 |
1587 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
3280af22 |
1588 | PL_debug |= 1 << (d - debopts); |
79072805 |
1589 | } |
1590 | else { |
3280af22 |
1591 | PL_debug = atoi(s+1); |
79072805 |
1592 | for (s++; isDIGIT(*s); s++) ; |
1593 | } |
3280af22 |
1594 | PL_debug |= 0x80000000; |
79072805 |
1595 | #else |
cea2e8a9 |
1596 | Perl_warn(aTHX_ "Recompile perl with -DDEBUGGING to use -D switch\n"); |
a0d0e21e |
1597 | for (s++; isALNUM(*s); s++) ; |
79072805 |
1598 | #endif |
1599 | /*SUPPRESS 530*/ |
1600 | return s; |
4633a7c4 |
1601 | case 'h': |
3280af22 |
1602 | usage(PL_origargv[0]); |
6ad3d225 |
1603 | PerlProc_exit(0); |
79072805 |
1604 | case 'i': |
3280af22 |
1605 | if (PL_inplace) |
1606 | Safefree(PL_inplace); |
1607 | PL_inplace = savepv(s+1); |
79072805 |
1608 | /*SUPPRESS 530*/ |
3280af22 |
1609 | for (s = PL_inplace; *s && !isSPACE(*s); s++) ; |
7b8d334a |
1610 | if (*s) { |
fb73857a |
1611 | *s++ = '\0'; |
7b8d334a |
1612 | if (*s == '-') /* Additional switches on #! line. */ |
1613 | s++; |
1614 | } |
fb73857a |
1615 | return s; |
1616 | case 'I': /* -I handled both here and in parse_perl() */ |
bbce6d69 |
1617 | forbid_setid("-I"); |
fb73857a |
1618 | ++s; |
1619 | while (*s && isSPACE(*s)) |
1620 | ++s; |
1621 | if (*s) { |
774d564b |
1622 | char *e, *p; |
748a9306 |
1623 | for (e = s; *e && !isSPACE(*e); e++) ; |
774d564b |
1624 | p = savepvn(s, e-s); |
1625 | incpush(p, TRUE); |
1626 | Safefree(p); |
fb73857a |
1627 | s = e; |
79072805 |
1628 | } |
1629 | else |
cea2e8a9 |
1630 | Perl_croak(aTHX_ "No space allowed after -I"); |
fb73857a |
1631 | return s; |
79072805 |
1632 | case 'l': |
3280af22 |
1633 | PL_minus_l = TRUE; |
79072805 |
1634 | s++; |
3280af22 |
1635 | if (PL_ors) |
1636 | Safefree(PL_ors); |
79072805 |
1637 | if (isDIGIT(*s)) { |
3280af22 |
1638 | PL_ors = savepv("\n"); |
1639 | PL_orslen = 1; |
1640 | *PL_ors = scan_oct(s, 3 + (*s == '0'), &numlen); |
79072805 |
1641 | s += numlen; |
1642 | } |
1643 | else { |
a863c7d1 |
1644 | dTHR; |
3280af22 |
1645 | if (RsPARA(PL_nrs)) { |
1646 | PL_ors = "\n\n"; |
1647 | PL_orslen = 2; |
c07a80fd |
1648 | } |
1649 | else |
3280af22 |
1650 | PL_ors = SvPV(PL_nrs, PL_orslen); |
1651 | PL_ors = savepvn(PL_ors, PL_orslen); |
79072805 |
1652 | } |
1653 | return s; |
1a30305b |
1654 | case 'M': |
bbce6d69 |
1655 | forbid_setid("-M"); /* XXX ? */ |
1a30305b |
1656 | /* FALL THROUGH */ |
1657 | case 'm': |
bbce6d69 |
1658 | forbid_setid("-m"); /* XXX ? */ |
1a30305b |
1659 | if (*++s) { |
a5f75d66 |
1660 | char *start; |
11343788 |
1661 | SV *sv; |
a5f75d66 |
1662 | char *use = "use "; |
1663 | /* -M-foo == 'no foo' */ |
1664 | if (*s == '-') { use = "no "; ++s; } |
11343788 |
1665 | sv = newSVpv(use,0); |
a5f75d66 |
1666 | start = s; |
1a30305b |
1667 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd |
1668 | while(isALNUM(*s) || *s==':') ++s; |
1669 | if (*s != '=') { |
11343788 |
1670 | sv_catpv(sv, start); |
c07a80fd |
1671 | if (*(start-1) == 'm') { |
1672 | if (*s != '\0') |
cea2e8a9 |
1673 | Perl_croak(aTHX_ "Can't use '%c' after -mname", *s); |
11343788 |
1674 | sv_catpv( sv, " ()"); |
c07a80fd |
1675 | } |
1676 | } else { |
11343788 |
1677 | sv_catpvn(sv, start, s-start); |
1678 | sv_catpv(sv, " split(/,/,q{"); |
1679 | sv_catpv(sv, ++s); |
1680 | sv_catpv(sv, "})"); |
c07a80fd |
1681 | } |
1a30305b |
1682 | s += strlen(s); |
3280af22 |
1683 | if (PL_preambleav == NULL) |
1684 | PL_preambleav = newAV(); |
1685 | av_push(PL_preambleav, sv); |
1a30305b |
1686 | } |
1687 | else |
cea2e8a9 |
1688 | Perl_croak(aTHX_ "No space allowed after -%c", *(s-1)); |
1a30305b |
1689 | return s; |
79072805 |
1690 | case 'n': |
3280af22 |
1691 | PL_minus_n = TRUE; |
79072805 |
1692 | s++; |
1693 | return s; |
1694 | case 'p': |
3280af22 |
1695 | PL_minus_p = TRUE; |
79072805 |
1696 | s++; |
1697 | return s; |
1698 | case 's': |
bbce6d69 |
1699 | forbid_setid("-s"); |
3280af22 |
1700 | PL_doswitches = TRUE; |
79072805 |
1701 | s++; |
1702 | return s; |
463ee0b2 |
1703 | case 'T': |
3280af22 |
1704 | if (!PL_tainting) |
cea2e8a9 |
1705 | Perl_croak(aTHX_ "Too late for \"-T\" option"); |
463ee0b2 |
1706 | s++; |
1707 | return s; |
79072805 |
1708 | case 'u': |
3280af22 |
1709 | PL_do_undump = TRUE; |
79072805 |
1710 | s++; |
1711 | return s; |
1712 | case 'U': |
3280af22 |
1713 | PL_unsafe = TRUE; |
79072805 |
1714 | s++; |
1715 | return s; |
1716 | case 'v': |
cceca5ed |
1717 | #if defined(PERL_SUBVERSION) && PERL_SUBVERSION > 0 |
1718 | printf("\nThis is perl, version %d.%03d_%02d built for %s", |
1719 | PERL_REVISION, PERL_VERSION, PERL_SUBVERSION, ARCHNAME); |
a5f75d66 |
1720 | #else |
fb73857a |
1721 | printf("\nThis is perl, version %s built for %s", |
6b88bc9c |
1722 | PL_patchlevel, ARCHNAME); |
fb73857a |
1723 | #endif |
1724 | #if defined(LOCAL_PATCH_COUNT) |
1725 | if (LOCAL_PATCH_COUNT > 0) |
1726 | printf("\n(with %d registered patch%s, see perl -V for more detail)", |
1727 | LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : ""); |
a5f75d66 |
1728 | #endif |
1a30305b |
1729 | |
4eb8286e |
1730 | printf("\n\nCopyright 1987-1999, Larry Wall\n"); |
79072805 |
1731 | #ifdef MSDOS |
fb73857a |
1732 | printf("\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); |
55497cff |
1733 | #endif |
1734 | #ifdef DJGPP |
1735 | printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n"); |
4eb8286e |
1736 | printf("djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n"); |
4633a7c4 |
1737 | #endif |
79072805 |
1738 | #ifdef OS2 |
5dd60ef7 |
1739 | printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" |
4eb8286e |
1740 | "Version 5 port Copyright (c) 1994-1999, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 |
1741 | #endif |
79072805 |
1742 | #ifdef atarist |
760ac839 |
1743 | printf("atariST series port, ++jrb bammi@cadence.com\n"); |
79072805 |
1744 | #endif |
a3f9223b |
1745 | #ifdef __BEOS__ |
4eb8286e |
1746 | printf("BeOS port Copyright Tom Spindler, 1997-1999\n"); |
a3f9223b |
1747 | #endif |
1d84e8df |
1748 | #ifdef MPE |
4eb8286e |
1749 | printf("MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-1999\n"); |
1d84e8df |
1750 | #endif |
9d116dd7 |
1751 | #ifdef OEMVS |
4eb8286e |
1752 | printf("MVS (OS390) port by Mortice Kern Systems, 1997-1999\n"); |
9d116dd7 |
1753 | #endif |
495c5fdc |
1754 | #ifdef __VOS__ |
4eb8286e |
1755 | printf("Stratus VOS port by Paul_Green@stratus.com, 1997-1999\n"); |
495c5fdc |
1756 | #endif |
092bebab |
1757 | #ifdef __OPEN_VM |
4eb8286e |
1758 | printf("VM/ESA port by Neale Ferguson, 1998-1999\n"); |
092bebab |
1759 | #endif |
a1a0e61e |
1760 | #ifdef POSIX_BC |
4eb8286e |
1761 | printf("BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n"); |
a1a0e61e |
1762 | #endif |
61ae2fbf |
1763 | #ifdef __MINT__ |
4eb8286e |
1764 | printf("MiNT port by Guido Flohr, 1997-1999\n"); |
61ae2fbf |
1765 | #endif |
baed7233 |
1766 | #ifdef BINARY_BUILD_NOTICE |
1767 | BINARY_BUILD_NOTICE; |
1768 | #endif |
760ac839 |
1769 | printf("\n\ |
79072805 |
1770 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
95103687 |
1771 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\ |
1772 | Complete documentation for Perl, including FAQ lists, should be found on\n\ |
1773 | this system using `man perl' or `perldoc perl'. If you have access to the\n\ |
1774 | Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n"); |
6ad3d225 |
1775 | PerlProc_exit(0); |
79072805 |
1776 | case 'w': |
599cee73 |
1777 | if (! (PL_dowarn & G_WARN_ALL_MASK)) |
1778 | PL_dowarn |= G_WARN_ON; |
1779 | s++; |
1780 | return s; |
1781 | case 'W': |
1782 | PL_dowarn = G_WARN_ALL_ON|G_WARN_ON; |
e24b16f9 |
1783 | PL_compiling.cop_warnings = WARN_ALL ; |
599cee73 |
1784 | s++; |
1785 | return s; |
1786 | case 'X': |
1787 | PL_dowarn = G_WARN_ALL_OFF; |
e24b16f9 |
1788 | PL_compiling.cop_warnings = WARN_NONE ; |
79072805 |
1789 | s++; |
1790 | return s; |
a0d0e21e |
1791 | case '*': |
79072805 |
1792 | case ' ': |
1793 | if (s[1] == '-') /* Additional switches on #! line. */ |
1794 | return s+2; |
1795 | break; |
a0d0e21e |
1796 | case '-': |
79072805 |
1797 | case 0: |
51882d45 |
1798 | #if defined(WIN32) || !defined(PERL_STRICT_CR) |
a868473f |
1799 | case '\r': |
1800 | #endif |
79072805 |
1801 | case '\n': |
1802 | case '\t': |
1803 | break; |
aa689395 |
1804 | #ifdef ALTERNATE_SHEBANG |
1805 | case 'S': /* OS/2 needs -S on "extproc" line. */ |
1806 | break; |
1807 | #endif |
a0d0e21e |
1808 | case 'P': |
3280af22 |
1809 | if (PL_preprocess) |
a0d0e21e |
1810 | return s+1; |
1811 | /* FALL THROUGH */ |
79072805 |
1812 | default: |
cea2e8a9 |
1813 | Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s); |
79072805 |
1814 | } |
1815 | return Nullch; |
1816 | } |
1817 | |
1818 | /* compliments of Tom Christiansen */ |
1819 | |
1820 | /* unexec() can be found in the Gnu emacs distribution */ |
ee580363 |
1821 | /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */ |
79072805 |
1822 | |
1823 | void |
864dbfa3 |
1824 | Perl_my_unexec(pTHX) |
79072805 |
1825 | { |
1826 | #ifdef UNEXEC |
46fc3d4c |
1827 | SV* prog; |
1828 | SV* file; |
ee580363 |
1829 | int status = 1; |
79072805 |
1830 | extern int etext; |
1831 | |
ee580363 |
1832 | prog = newSVpv(BIN_EXP, 0); |
46fc3d4c |
1833 | sv_catpv(prog, "/perl"); |
6b88bc9c |
1834 | file = newSVpv(PL_origfilename, 0); |
46fc3d4c |
1835 | sv_catpv(file, ".perldump"); |
79072805 |
1836 | |
ee580363 |
1837 | unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0); |
1838 | /* unexec prints msg to stderr in case of failure */ |
6ad3d225 |
1839 | PerlProc_exit(status); |
79072805 |
1840 | #else |
a5f75d66 |
1841 | # ifdef VMS |
1842 | # include <lib$routines.h> |
1843 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ |
aa689395 |
1844 | # else |
79072805 |
1845 | ABORT(); /* for use with undump */ |
aa689395 |
1846 | # endif |
a5f75d66 |
1847 | #endif |
79072805 |
1848 | } |
1849 | |
cb68f92d |
1850 | /* initialize curinterp */ |
1851 | STATIC void |
cea2e8a9 |
1852 | S_init_interp(pTHX) |
cb68f92d |
1853 | { |
1854 | |
066ef5b5 |
1855 | #ifdef PERL_OBJECT /* XXX kludge */ |
cb68f92d |
1856 | #define I_REINIT \ |
6b88bc9c |
1857 | STMT_START { \ |
1858 | PL_chopset = " \n-"; \ |
1859 | PL_copline = NOLINE; \ |
1860 | PL_curcop = &PL_compiling;\ |
1861 | PL_curcopdb = NULL; \ |
1862 | PL_dbargs = 0; \ |
1863 | PL_dlmax = 128; \ |
3967c732 |
1864 | PL_dumpindent = 4; \ |
6b88bc9c |
1865 | PL_laststatval = -1; \ |
1866 | PL_laststype = OP_STAT; \ |
1867 | PL_maxscream = -1; \ |
1868 | PL_maxsysfd = MAXSYSFD; \ |
1869 | PL_statname = Nullsv; \ |
1870 | PL_tmps_floor = -1; \ |
1871 | PL_tmps_ix = -1; \ |
1872 | PL_op_mask = NULL; \ |
1873 | PL_dlmax = 128; \ |
1874 | PL_laststatval = -1; \ |
1875 | PL_laststype = OP_STAT; \ |
1876 | PL_mess_sv = Nullsv; \ |
1877 | PL_splitstr = " "; \ |
1878 | PL_generation = 100; \ |
1879 | PL_exitlist = NULL; \ |
1880 | PL_exitlistlen = 0; \ |
1881 | PL_regindent = 0; \ |
1882 | PL_in_clean_objs = FALSE; \ |
1883 | PL_in_clean_all = FALSE; \ |
1884 | PL_profiledata = NULL; \ |
1885 | PL_rsfp = Nullfp; \ |
1886 | PL_rsfp_filters = Nullav; \ |
24d3c518 |
1887 | PL_dirty = FALSE; \ |
cb68f92d |
1888 | } STMT_END |
9666903d |
1889 | I_REINIT; |
066ef5b5 |
1890 | #else |
1891 | # ifdef MULTIPLICITY |
1892 | # define PERLVAR(var,type) |
cea2e8a9 |
1893 | # if defined(PERL_IMPLICIT_CONTEXT) |
1894 | # define PERLVARI(var,type,init) my_perl->var = init; |
1895 | # define PERLVARIC(var,type,init) my_perl->var = init; |
1896 | # else |
1897 | # define PERLVARI(var,type,init) PL_curinterp->var = init; |
1898 | # define PERLVARIC(var,type,init) PL_curinterp->var = init; |
1899 | # endif |
066ef5b5 |
1900 | # include "intrpvar.h" |
1901 | # ifndef USE_THREADS |
1902 | # include "thrdvar.h" |
1903 | # endif |
1904 | # undef PERLVAR |
1905 | # undef PERLVARI |
1906 | # undef PERLVARIC |
3967c732 |
1907 | # else |
066ef5b5 |
1908 | # define PERLVAR(var,type) |
533c011a |
1909 | # define PERLVARI(var,type,init) PL_##var = init; |
1910 | # define PERLVARIC(var,type,init) PL_##var = init; |
066ef5b5 |
1911 | # include "intrpvar.h" |
1912 | # ifndef USE_THREADS |
1913 | # include "thrdvar.h" |
1914 | # endif |
1915 | # undef PERLVAR |
1916 | # undef PERLVARI |
1917 | # undef PERLVARIC |
1918 | # endif |
cb68f92d |
1919 | #endif |
1920 | |
cb68f92d |
1921 | } |
1922 | |
76e3520e |
1923 | STATIC void |
cea2e8a9 |
1924 | S_init_main_stash(pTHX) |
79072805 |
1925 | { |
11343788 |
1926 | dTHR; |
463ee0b2 |
1927 | GV *gv; |
6e72f9df |
1928 | |
1929 | /* Note that strtab is a rather special HV. Assumptions are made |
1930 | about not iterating on it, and not adding tie magic to it. |
1931 | It is properly deallocated in perl_destruct() */ |
3280af22 |
1932 | PL_strtab = newHV(); |
5f08fbcd |
1933 | #ifdef USE_THREADS |
1934 | MUTEX_INIT(&PL_strtab_mutex); |
1935 | #endif |
3280af22 |
1936 | HvSHAREKEYS_off(PL_strtab); /* mandatory */ |
1937 | hv_ksplit(PL_strtab, 512); |
6e72f9df |
1938 | |
3280af22 |
1939 | PL_curstash = PL_defstash = newHV(); |
79cb57f6 |
1940 | PL_curstname = newSVpvn("main",4); |
adbc6bb1 |
1941 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
1942 | SvREFCNT_dec(GvHV(gv)); |
3280af22 |
1943 | GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash); |
463ee0b2 |
1944 | SvREADONLY_on(gv); |
3280af22 |
1945 | HvNAME(PL_defstash) = savepv("main"); |
1946 | PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); |
1947 | GvMULTI_on(PL_incgv); |
1948 | PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */ |
1949 | GvMULTI_on(PL_hintgv); |
1950 | PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV); |
1951 | PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); |
1952 | GvMULTI_on(PL_errgv); |
1953 | PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */ |
1954 | GvMULTI_on(PL_replgv); |
cea2e8a9 |
1955 | (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */ |
38a03e6e |
1956 | sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */ |
1957 | sv_setpvn(ERRSV, "", 0); |
3280af22 |
1958 | PL_curstash = PL_defstash; |
1959 | PL_compiling.cop_stash = PL_defstash; |
1960 | PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); |
1961 | PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV)); |
4633a7c4 |
1962 | /* We must init $/ before switches are processed. */ |
864dbfa3 |
1963 | sv_setpvn(get_sv("/", TRUE), "\n", 1); |
79072805 |
1964 | } |
1965 | |
76e3520e |
1966 | STATIC void |
cea2e8a9 |
1967 | S_open_script(pTHX_ char *scriptname, bool dosearch, SV *sv, int *fdscript) |
79072805 |
1968 | { |
0f15f207 |
1969 | dTHR; |
79072805 |
1970 | register char *s; |
2a92aaa0 |
1971 | |
6c4ab083 |
1972 | *fdscript = -1; |
79072805 |
1973 | |
3280af22 |
1974 | if (PL_e_script) { |
1975 | PL_origfilename = savepv("-e"); |
96436eeb |
1976 | } |
6c4ab083 |
1977 | else { |
1978 | /* if find_script() returns, it returns a malloc()-ed value */ |
3280af22 |
1979 | PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1); |
6c4ab083 |
1980 | |
1981 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { |
1982 | char *s = scriptname + 8; |
1983 | *fdscript = atoi(s); |
1984 | while (isDIGIT(*s)) |
1985 | s++; |
1986 | if (*s) { |
1987 | scriptname = savepv(s + 1); |
3280af22 |
1988 | Safefree(PL_origfilename); |
1989 | PL_origfilename = scriptname; |
6c4ab083 |
1990 | } |
1991 | } |
1992 | } |
1993 | |
3280af22 |
1994 | PL_curcop->cop_filegv = gv_fetchfile(PL_origfilename); |
1995 | if (strEQ(PL_origfilename,"-")) |
79072805 |
1996 | scriptname = ""; |
01f988be |
1997 | if (*fdscript >= 0) { |
3280af22 |
1998 | PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE); |
96436eeb |
1999 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
3280af22 |
2000 | if (PL_rsfp) |
2001 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */ |
96436eeb |
2002 | #endif |
2003 | } |
3280af22 |
2004 | else if (PL_preprocess) { |
46fc3d4c |
2005 | char *cpp_cfg = CPPSTDIN; |
79cb57f6 |
2006 | SV *cpp = newSVpvn("",0); |
46fc3d4c |
2007 | SV *cmd = NEWSV(0,0); |
2008 | |
2009 | if (strEQ(cpp_cfg, "cppstdin")) |
cea2e8a9 |
2010 | Perl_sv_catpvf(aTHX_ cpp, "%s/", BIN_EXP); |
46fc3d4c |
2011 | sv_catpv(cpp, cpp_cfg); |
79072805 |
2012 | |
79072805 |
2013 | sv_catpv(sv,"-I"); |
fed7345c |
2014 | sv_catpv(sv,PRIVLIB_EXP); |
46fc3d4c |
2015 | |
79072805 |
2016 | #ifdef MSDOS |
cea2e8a9 |
2017 | Perl_sv_setpvf(aTHX_ cmd, "\ |
79072805 |
2018 | sed %s -e \"/^[^#]/b\" \ |
2019 | -e \"/^#[ ]*include[ ]/b\" \ |
2020 | -e \"/^#[ ]*define[ ]/b\" \ |
2021 | -e \"/^#[ ]*if[ ]/b\" \ |
2022 | -e \"/^#[ ]*ifdef[ ]/b\" \ |
2023 | -e \"/^#[ ]*ifndef[ ]/b\" \ |
2024 | -e \"/^#[ ]*else/b\" \ |
2025 | -e \"/^#[ ]*elif[ ]/b\" \ |
2026 | -e \"/^#[ ]*undef[ ]/b\" \ |
2027 | -e \"/^#[ ]*endif/b\" \ |
2028 | -e \"s/^#.*//\" \ |
fc36a67e |
2029 | %s | %_ -C %_ %s", |
6b88bc9c |
2030 | (PL_doextract ? "-e \"1,/^#/d\n\"" : ""), |
79072805 |
2031 | #else |
092bebab |
2032 | # ifdef __OPEN_VM |
cea2e8a9 |
2033 | Perl_sv_setpvf(aTHX_ cmd, "\ |
092bebab |
2034 | %s %s -e '/^[^#]/b' \ |
2035 | -e '/^#[ ]*include[ ]/b' \ |
2036 | -e '/^#[ ]*define[ ]/b' \ |
2037 | -e '/^#[ ]*if[ ]/b' \ |
2038 | -e '/^#[ ]*ifdef[ ]/b' \ |
2039 | -e '/^#[ ]*ifndef[ ]/b' \ |
2040 | -e '/^#[ ]*else/b' \ |
2041 | -e '/^#[ ]*elif[ ]/b' \ |
2042 | -e '/^#[ ]*undef[ ]/b' \ |
2043 | -e '/^#[ ]*endif/b' \ |
2044 | -e 's/^[ ]*#.*//' \ |
2045 | %s | %_ %_ %s", |
2046 | # else |
cea2e8a9 |
2047 | Perl_sv_setpvf(aTHX_ cmd, "\ |
79072805 |
2048 | %s %s -e '/^[^#]/b' \ |
2049 | -e '/^#[ ]*include[ ]/b' \ |
2050 | -e '/^#[ ]*define[ ]/b' \ |
2051 | -e '/^#[ ]*if[ ]/b' \ |
2052 | -e '/^#[ ]*ifdef[ ]/b' \ |
2053 | -e '/^#[ ]*ifndef[ ]/b' \ |
2054 | -e '/^#[ ]*else/b' \ |
2055 | -e '/^#[ ]*elif[ ]/b' \ |
2056 | -e '/^#[ ]*undef[ ]/b' \ |
2057 | -e '/^#[ ]*endif/b' \ |
2058 | -e 's/^[ ]*#.*//' \ |
fc36a67e |
2059 | %s | %_ -C %_ %s", |
092bebab |
2060 | # endif |
79072805 |
2061 | #ifdef LOC_SED |
2062 | LOC_SED, |
2063 | #else |
2064 | "sed", |
2065 | #endif |
3280af22 |
2066 | (PL_doextract ? "-e '1,/^#/d\n'" : ""), |
79072805 |
2067 | #endif |
46fc3d4c |
2068 | scriptname, cpp, sv, CPPMINUS); |
3280af22 |
2069 | PL_doextract = FALSE; |
79072805 |
2070 | #ifdef IAMSUID /* actually, this is caught earlier */ |
b28d0864 |
2071 | if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */ |
79072805 |
2072 | #ifdef HAS_SETEUID |
b28d0864 |
2073 | (void)seteuid(PL_uid); /* musn't stay setuid root */ |
79072805 |
2074 | #else |
2075 | #ifdef HAS_SETREUID |
b28d0864 |
2076 | (void)setreuid((Uid_t)-1, PL_uid); |
85e6fe83 |
2077 | #else |
2078 | #ifdef HAS_SETRESUID |
b28d0864 |
2079 | (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1); |
79072805 |
2080 | #else |
b28d0864 |
2081 | PerlProc_setuid(PL_uid); |
79072805 |
2082 | #endif |
2083 | #endif |
85e6fe83 |
2084 | #endif |
b28d0864 |
2085 | if (PerlProc_geteuid() != PL_uid) |
cea2e8a9 |
2086 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
79072805 |
2087 | } |
2088 | #endif /* IAMSUID */ |
3280af22 |
2089 | PL_rsfp = PerlProc_popen(SvPVX(cmd), "r"); |
46fc3d4c |
2090 | SvREFCNT_dec(cmd); |
2091 | SvREFCNT_dec(cpp); |
79072805 |
2092 | } |
2093 | else if (!*scriptname) { |
bbce6d69 |
2094 | forbid_setid("program input from stdin"); |
3280af22 |
2095 | PL_rsfp = PerlIO_stdin(); |
79072805 |
2096 | } |
96436eeb |
2097 | else { |
3280af22 |
2098 | PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE); |
96436eeb |
2099 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
3280af22 |
2100 | if (PL_rsfp) |
2101 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */ |
96436eeb |
2102 | #endif |
2103 | } |
3280af22 |
2104 | if (!PL_rsfp) { |
13281fa4 |
2105 | #ifdef DOSUID |
a687059c |
2106 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
6b88bc9c |
2107 | if (PL_euid && |
2108 | PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&PL_statbuf) >= 0 && |
2109 | PL_statbuf.st_mode & (S_ISUID|S_ISGID)) |
2110 | { |
46fc3d4c |
2111 | /* try again */ |
cea2e8a9 |
2112 | PerlProc_execv(Perl_form(aTHX_ "%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv); |
2113 | Perl_croak(aTHX_ "Can't do setuid\n"); |
13281fa4 |
2114 | } |
2115 | #endif |
2116 | #endif |
cea2e8a9 |
2117 | Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n", |
3280af22 |
2118 | SvPVX(GvSV(PL_curcop->cop_filegv)), Strerror(errno)); |
13281fa4 |
2119 | } |
79072805 |
2120 | } |
8d063cd8 |
2121 | |
7b89560d |
2122 | /* Mention |
2123 | * I_SYSSTATVFS HAS_FSTATVFS |
2124 | * I_SYSMOUNT |
2125 | * I_STATFS HAS_FSTATFS |
2126 | * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT |
2127 | * here so that metaconfig picks them up. */ |
2128 | |
104d25b7 |
2129 | #ifdef IAMSUID |
864dbfa3 |
2130 | STATIC int |
cea2e8a9 |
2131 | S_fd_on_nosuid_fs(pTHX_ int fd) |
104d25b7 |
2132 | { |
2133 | int on_nosuid = 0; |
2134 | int check_okay = 0; |
2135 | /* |
2136 | * Preferred order: fstatvfs(), fstatfs(), getmntent(). |
2137 | * fstatvfs() is UNIX98. |
2138 | * fstatfs() is BSD. |
2139 | * getmntent() is O(number-of-mounted-filesystems) and can hang. |
2140 | */ |
2141 | |
2142 | # ifdef HAS_FSTATVFS |
2143 | struct statvfs stfs; |
2144 | check_okay = fstatvfs(fd, &stfs) == 0; |
2145 | on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID); |
2146 | # else |
2147 | # if defined(HAS_FSTATFS) && defined(HAS_STRUCT_STATFS_FLAGS) |
2148 | struct statfs stfs; |
2149 | check_okay = fstatfs(fd, &stfs) == 0; |
2150 | # undef PERL_MOUNT_NOSUID |
2151 | # if !defined(PERL_MOUNT_NOSUID) && defined(MNT_NOSUID) |
2152 | # define PERL_MOUNT_NOSUID MNT_NOSUID |
2153 | # endif |
2154 | # if !defined(PERL_MOUNT_NOSUID) && defined(MS_NOSUID) |
2155 | # define PERL_MOUNT_NOSUID MS_NOSUID |
2156 | # endif |
2157 | # if !defined(PERL_MOUNT_NOSUID) && defined(M_NOSUID) |
2158 | # define PERL_MOUNT_NOSUID M_NOSUID |
2159 | # endif |
2160 | # ifdef PERL_MOUNT_NOSUID |
2161 | on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID); |
2162 | # endif |
2163 | # else |
32b3cf08 |
2164 | # if defined(HAS_GETMNTENT) && defined(HAS_HASMNTOPT) && defined(MNTOPT_NOSUID) |
104d25b7 |
2165 | FILE *mtab = fopen("/etc/mtab", "r"); |
2166 | struct mntent *entry; |
2167 | struct stat stb, fsb; |
2168 | |
2169 | if (mtab && (fstat(fd, &stb) == 0)) { |
2170 | while (entry = getmntent(mtab)) { |
2171 | if (stat(entry->mnt_dir, &fsb) == 0 |
2172 | && fsb.st_dev == stb.st_dev) |
2173 | { |
2174 | /* found the filesystem */ |
2175 | check_okay = 1; |
2176 | if (hasmntopt(entry, MNTOPT_NOSUID)) |
2177 | on_nosuid = 1; |
2178 | break; |
2179 | } /* A single fs may well fail its stat(). */ |
2180 | } |
2181 | } |
2182 | if (mtab) |
2183 | fclose(mtab); |
2184 | # endif /* mntent */ |
2185 | # endif /* statfs */ |
2186 | # endif /* statvfs */ |
2187 | if (!check_okay) |
cea2e8a9 |
2188 | Perl_croak(aTHX_ "Can't check filesystem of script \"%s\"", PL_origfilename); |
104d25b7 |
2189 | return on_nosuid; |
2190 | } |
2191 | #endif /* IAMSUID */ |
2192 | |
76e3520e |
2193 | STATIC void |
cea2e8a9 |
2194 | S_validate_suid(pTHX_ char *validarg, char *scriptname, int fdscript) |
79072805 |
2195 | { |
96436eeb |
2196 | int which; |
2197 | |
13281fa4 |
2198 | /* do we need to emulate setuid on scripts? */ |
2199 | |
2200 | /* This code is for those BSD systems that have setuid #! scripts disabled |
2201 | * in the kernel because of a security problem. Merely defining DOSUID |
2202 | * in perl will not fix that problem, but if you have disabled setuid |
2203 | * scripts in the kernel, this will attempt to emulate setuid and setgid |
2204 | * on scripts that have those now-otherwise-useless bits set. The setuid |
27e2fb84 |
2205 | * root version must be called suidperl or sperlN.NNN. If regular perl |
2206 | * discovers that it has opened a setuid script, it calls suidperl with |
2207 | * the same argv that it had. If suidperl finds that the script it has |
2208 | * just opened is NOT setuid root, it sets the effective uid back to the |
2209 | * uid. We don't just make perl setuid root because that loses the |
2210 | * effective uid we had before invoking perl, if it was different from the |
2211 | * uid. |
13281fa4 |
2212 | * |
2213 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must |
2214 | * be defined in suidperl only. suidperl must be setuid root. The |
2215 | * Configure script will set this up for you if you want it. |
2216 | */ |
a687059c |
2217 | |
13281fa4 |
2218 | #ifdef DOSUID |
ea0efc06 |
2219 | dTHR; |
6e72f9df |
2220 | char *s, *s2; |
a0d0e21e |
2221 | |
b28d0864 |
2222 | if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */ |
cea2e8a9 |
2223 | Perl_croak(aTHX_ "Can't stat script \"%s\"",PL_origfilename); |
b28d0864 |
2224 | if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 |
2225 | I32 len; |
2d8e6c8d |
2226 | STRLEN n_a; |
13281fa4 |
2227 | |
a687059c |
2228 | #ifdef IAMSUID |
fe14fcc3 |
2229 | #ifndef HAS_SETREUID |
a687059c |
2230 | /* On this access check to make sure the directories are readable, |
2231 | * there is actually a small window that the user could use to make |
2232 | * filename point to an accessible directory. So there is a faint |
2233 | * chance that someone could execute a setuid script down in a |
2234 | * non-accessible directory. I don't know what to do about that. |
2235 | * But I don't think it's too important. The manual lies when |
2236 | * it says access() is useful in setuid programs. |
2237 | */ |
6b88bc9c |
2238 | if (PerlLIO_access(SvPVX(GvSV(PL_curcop->cop_filegv)),1)) /*double check*/ |
cea2e8a9 |
2239 | Perl_croak(aTHX_ "Permission denied"); |
a687059c |
2240 | #else |
2241 | /* If we can swap euid and uid, then we can determine access rights |
2242 | * with a simple stat of the file, and then compare device and |
2243 | * inode to make sure we did stat() on the same file we opened. |
2244 | * Then we just have to make sure he or she can execute it. |
2245 | */ |
2246 | { |
2247 | struct stat tmpstatbuf; |
2248 | |
85e6fe83 |
2249 | if ( |
2250 | #ifdef HAS_SETREUID |
b28d0864 |
2251 | setreuid(PL_euid,PL_uid) < 0 |
a0d0e21e |
2252 | #else |
2253 | # if HAS_SETRESUID |
b28d0864 |
2254 | setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0 |
a0d0e21e |
2255 | # endif |
85e6fe83 |
2256 | #endif |
b28d0864 |
2257 | || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid) |
cea2e8a9 |
2258 | Perl_croak(aTHX_ "Can't swap uid and euid"); /* really paranoid */ |
6b88bc9c |
2259 | if (PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&tmpstatbuf) < 0) |
cea2e8a9 |
2260 | Perl_croak(aTHX_ "Permission denied"); /* testing full pathname here */ |
2bb3463c |
2261 | #if defined(IAMSUID) && !defined(NO_NOSUID_CHECK) |
104d25b7 |
2262 | if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp))) |
cea2e8a9 |
2263 | Perl_croak(aTHX_ "Permission denied"); |
104d25b7 |
2264 | #endif |
b28d0864 |
2265 | if (tmpstatbuf.st_dev != PL_statbuf.st_dev || |
2266 | tmpstatbuf.st_ino != PL_statbuf.st_ino) { |
2267 | (void)PerlIO_close(PL_rsfp); |
2268 | if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */ |
2269 | PerlIO_printf(PL_rsfp, |
ff0cee69 |
2270 | "User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\ |
2271 | (Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n", |
b28d0864 |
2272 | (long)PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino, |
2273 | (long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino, |
6b88bc9c |
2274 | SvPVX(GvSV(PL_curcop->cop_filegv)), |
b28d0864 |
2275 | (long)PL_statbuf.st_uid, (long)PL_statbuf.st_gid); |
2276 | (void)PerlProc_pclose(PL_rsfp); |
a687059c |
2277 | } |
cea2e8a9 |
2278 | Perl_croak(aTHX_ "Permission denied\n"); |
a687059c |
2279 | } |
85e6fe83 |
2280 | if ( |
2281 | #ifdef HAS_SETREUID |
b28d0864 |
2282 | setreuid(PL_uid,PL_euid) < 0 |
a0d0e21e |
2283 | #else |
2284 | # if defined(HAS_SETRESUID) |
b28d0864 |
2285 | setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0 |
a0d0e21e |
2286 | # endif |
85e6fe83 |
2287 | #endif |
b28d0864 |
2288 | || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid) |
cea2e8a9 |
2289 | Perl_croak(aTHX_ "Can't reswap uid and euid"); |
b28d0864 |
2290 | if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */ |
cea2e8a9 |
2291 | Perl_croak(aTHX_ "Permission denied\n"); |
a687059c |
2292 | } |
fe14fcc3 |
2293 | #endif /* HAS_SETREUID */ |
a687059c |
2294 | #endif /* IAMSUID */ |
2295 | |
b28d0864 |
2296 | if (!S_ISREG(PL_statbuf.st_mode)) |
cea2e8a9 |
2297 | Perl_croak(aTHX_ "Permission denied"); |
b28d0864 |
2298 | if (PL_statbuf.st_mode & S_IWOTH) |
cea2e8a9 |
2299 | Perl_croak(aTHX_ "Setuid/gid script is writable by world"); |
6b88bc9c |
2300 | PL_doswitches = FALSE; /* -s is insecure in suid */ |
2301 | PL_curcop->cop_line++; |
2302 | if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch || |
2d8e6c8d |
2303 | strnNE(SvPV(PL_linestr,n_a),"#!",2) ) /* required even on Sys V */ |
cea2e8a9 |
2304 | Perl_croak(aTHX_ "No #! line"); |
2d8e6c8d |
2305 | s = SvPV(PL_linestr,n_a)+2; |
663a0e37 |
2306 | if (*s == ' ') s++; |
45d8adaa |
2307 | while (!isSPACE(*s)) s++; |
2d8e6c8d |
2308 | for (s2 = s; (s2 > SvPV(PL_linestr,n_a)+2 && |
6e72f9df |
2309 | (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ; |
2310 | if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ |
cea2e8a9 |
2311 | Perl_croak(aTHX_ "Not a perl script"); |
a687059c |
2312 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 |
2313 | /* |
2314 | * #! arg must be what we saw above. They can invoke it by |
2315 | * mentioning suidperl explicitly, but they may not add any strange |
2316 | * arguments beyond what #! says if they do invoke suidperl that way. |
2317 | */ |
2318 | len = strlen(validarg); |
2319 | if (strEQ(validarg," PHOOEY ") || |
45d8adaa |
2320 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
cea2e8a9 |
2321 | Perl_croak(aTHX_ "Args must match #! line"); |
a687059c |
2322 | |
2323 | #ifndef IAMSUID |
b28d0864 |
2324 | if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) && |
2325 | PL_euid == PL_statbuf.st_uid) |
2326 | if (!PL_do_undump) |
cea2e8a9 |
2327 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c |
2328 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
2329 | #endif /* IAMSUID */ |
13281fa4 |
2330 | |
b28d0864 |
2331 | if (PL_euid) { /* oops, we're not the setuid root perl */ |
2332 | (void)PerlIO_close(PL_rsfp); |
13281fa4 |
2333 | #ifndef IAMSUID |
46fc3d4c |
2334 | /* try again */ |
cea2e8a9 |
2335 | PerlProc_execv(Perl_form(aTHX_ "%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv); |
13281fa4 |
2336 | #endif |
cea2e8a9 |
2337 | Perl_croak(aTHX_ "Can't do setuid\n"); |
13281fa4 |
2338 | } |
2339 | |
b28d0864 |
2340 | if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) { |
fe14fcc3 |
2341 | #ifdef HAS_SETEGID |
b28d0864 |
2342 | (void)setegid(PL_statbuf.st_gid); |
a687059c |
2343 | #else |
fe14fcc3 |
2344 | #ifdef HAS_SETREGID |
b28d0864 |
2345 | (void)setregid((Gid_t)-1,PL_statbuf.st_gid); |
85e6fe83 |
2346 | #else |
2347 | #ifdef HAS_SETRESGID |
b28d0864 |
2348 | (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1); |
a687059c |
2349 | #else |
b28d0864 |
2350 | PerlProc_setgid(PL_statbuf.st_gid); |
a687059c |
2351 | #endif |
2352 | #endif |
85e6fe83 |
2353 | #endif |
b28d0864 |
2354 | if (PerlProc_getegid() != PL_statbuf.st_gid) |
cea2e8a9 |
2355 | Perl_croak(aTHX_ "Can't do setegid!\n"); |
83025b21 |
2356 | } |
b28d0864 |
2357 | if (PL_statbuf.st_mode & S_ISUID) { |
2358 | if (PL_statbuf.st_uid != PL_euid) |
fe14fcc3 |
2359 | #ifdef HAS_SETEUID |
b28d0864 |
2360 | (void)seteuid(PL_statbuf.st_uid); /* all that for this */ |
a687059c |
2361 | #else |
fe14fcc3 |
2362 | #ifdef HAS_SETREUID |
b28d0864 |
2363 | (void)setreuid((Uid_t)-1,PL_statbuf.st_uid); |
85e6fe83 |
2364 | #else |
2365 | #ifdef HAS_SETRESUID |
b28d0864 |
2366 | (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1); |
a687059c |
2367 | #else |
b28d0864 |
2368 | PerlProc_setuid(PL_statbuf.st_uid); |
a687059c |
2369 | #endif |
2370 | #endif |
85e6fe83 |
2371 | #endif |
b28d0864 |
2372 | if (PerlProc_geteuid() != PL_statbuf.st_uid) |
cea2e8a9 |
2373 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
a687059c |
2374 | } |
b28d0864 |
2375 | else if (PL_uid) { /* oops, mustn't run as root */ |
fe14fcc3 |
2376 | #ifdef HAS_SETEUID |
b28d0864 |
2377 | (void)seteuid((Uid_t)PL_uid); |
a687059c |
2378 | #else |
fe14fcc3 |
2379 | #ifdef HAS_SETREUID |
b28d0864 |
2380 | (void)setreuid((Uid_t)-1,(Uid_t)PL_uid); |
a687059c |
2381 | #else |
85e6fe83 |
2382 | #ifdef HAS_SETRESUID |
b28d0864 |
2383 | (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1); |
85e6fe83 |
2384 | #else |
b28d0864 |
2385 | PerlProc_setuid((Uid_t)PL_uid); |
85e6fe83 |
2386 | #endif |
a687059c |
2387 | #endif |
2388 | #endif |
b28d0864 |
2389 | if (PerlProc_geteuid() != PL_uid) |
cea2e8a9 |
2390 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
83025b21 |
2391 | } |
748a9306 |
2392 | init_ids(); |
b28d0864 |
2393 | if (!cando(S_IXUSR,TRUE,&PL_statbuf)) |
cea2e8a9 |
2394 | Perl_croak(aTHX_ "Permission denied\n"); /* they can't do this */ |
13281fa4 |
2395 | } |
2396 | #ifdef IAMSUID |
6b88bc9c |
2397 | else if (PL_preprocess) |
cea2e8a9 |
2398 | Perl_croak(aTHX_ "-P not allowed for setuid/setgid script\n"); |
96436eeb |
2399 | else if (fdscript >= 0) |
cea2e8a9 |
2400 | Perl_croak(aTHX_ "fd script not allowed in suidperl\n"); |
13281fa4 |
2401 | else |
cea2e8a9 |
2402 | Perl_croak(aTHX_ "Script is not setuid/setgid in suidperl\n"); |
96436eeb |
2403 | |
2404 | /* We absolutely must clear out any saved ids here, so we */ |
2405 | /* exec the real perl, substituting fd script for scriptname. */ |
2406 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ |
b28d0864 |
2407 | PerlIO_rewind(PL_rsfp); |
2408 | PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */ |
6b88bc9c |
2409 | for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; |
2410 | if (!PL_origargv[which]) |
cea2e8a9 |
2411 | Perl_croak(aTHX_ "Permission denied"); |
2412 | PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s", |
6b88bc9c |
2413 | PerlIO_fileno(PL_rsfp), PL_origargv[which])); |
96436eeb |
2414 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
b28d0864 |
2415 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb |
2416 | #endif |
cea2e8a9 |
2417 | PerlProc_execv(Perl_form(aTHX_ "%s/perl%s", BIN_EXP, PL_patchlevel), PL_origargv);/* try again */ |
2418 | Perl_croak(aTHX_ "Can't do setuid\n"); |
13281fa4 |
2419 | #endif /* IAMSUID */ |
a687059c |
2420 | #else /* !DOSUID */ |
3280af22 |
2421 | if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */ |
a687059c |
2422 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW |
96827780 |
2423 | dTHR; |
b28d0864 |
2424 | PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */ |
2425 | if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID) |
a687059c |
2426 | || |
b28d0864 |
2427 | (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID) |
a687059c |
2428 | ) |
b28d0864 |
2429 | if (!PL_do_undump) |
cea2e8a9 |
2430 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c |
2431 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
2432 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ |
2433 | /* not set-id, must be wrapped */ |
a687059c |
2434 | } |
13281fa4 |
2435 | #endif /* DOSUID */ |
79072805 |
2436 | } |
13281fa4 |
2437 | |
76e3520e |
2438 | STATIC void |
cea2e8a9 |
2439 | S_find_beginning(pTHX) |
79072805 |
2440 | { |
6e72f9df |
2441 | register char *s, *s2; |
33b78306 |
2442 | |
2443 | /* skip forward in input to the real script? */ |
2444 | |
bbce6d69 |
2445 | forbid_setid("-x"); |
3280af22 |
2446 | while (PL_doextract) { |
2447 | if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch) |
cea2e8a9 |
2448 | Perl_croak(aTHX_ "No Perl script found in input\n"); |
6e72f9df |
2449 | if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) { |
3280af22 |
2450 | PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */ |
2451 | PL_doextract = FALSE; |
6e72f9df |
2452 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
2453 | s2 = s; |
2454 | while (*s == ' ' || *s == '\t') s++; |
2455 | if (*s++ == '-') { |
2456 | while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--; |
2457 | if (strnEQ(s2-4,"perl",4)) |
2458 | /*SUPPRESS 530*/ |
2459 | while (s = moreswitches(s)) ; |
33b78306 |
2460 | } |
3280af22 |
2461 | if (PL_cddir && PerlDir_chdir(PL_cddir) < 0) |
cea2e8a9 |
2462 | Perl_croak(aTHX_ "Can't chdir to %s",PL_cddir); |
83025b21 |
2463 | } |
2464 | } |
2465 | } |
2466 | |
afe37c7d |
2467 | |
76e3520e |
2468 | STATIC void |
cea2e8a9 |
2469 | S_init_ids(pTHX) |
352d5a3a |
2470 | { |
3280af22 |
2471 | PL_uid = (int)PerlProc_getuid(); |
2472 | PL_euid = (int)PerlProc_geteuid(); |
2473 | PL_gid = (int)PerlProc_getgid(); |
2474 | PL_egid = (int)PerlProc_getegid(); |
748a9306 |
2475 | #ifdef VMS |
b28d0864 |
2476 | PL_uid |= PL_gid << 16; |
2477 | PL_euid |= PL_egid << 16; |
748a9306 |
2478 | #endif |
3280af22 |
2479 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
748a9306 |
2480 | } |
79072805 |
2481 | |
76e3520e |
2482 | STATIC void |
cea2e8a9 |
2483 | S_forbid_setid(pTHX_ char *s) |
bbce6d69 |
2484 | { |
3280af22 |
2485 | if (PL_euid != PL_uid) |
cea2e8a9 |
2486 | Perl_croak(aTHX_ "No %s allowed while running setuid", s); |
3280af22 |
2487 | if (PL_egid != PL_gid) |
cea2e8a9 |
2488 | Perl_croak(aTHX_ "No %s allowed while running setgid", s); |
bbce6d69 |
2489 | } |
2490 | |
76e3520e |
2491 | STATIC void |
cea2e8a9 |
2492 | S_init_debugger(pTHX) |
748a9306 |
2493 | { |
11343788 |
2494 | dTHR; |
3280af22 |
2495 | PL_curstash = PL_debstash; |
2496 | PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); |
2497 | AvREAL_off(PL_dbargs); |
2498 | PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); |
2499 | PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); |
2500 | PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); |
2501 | PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); |
2502 | sv_setiv(PL_DBsingle, 0); |
2503 | PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); |
2504 | sv_setiv(PL_DBtrace, 0); |
2505 | PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); |
2506 | sv_setiv(PL_DBsignal, 0); |
2507 | PL_curstash = PL_defstash; |
352d5a3a |
2508 | } |
2509 | |
2ce36478 |
2510 | #ifndef STRESS_REALLOC |
2511 | #define REASONABLE(size) (size) |
2512 | #else |
2513 | #define REASONABLE(size) (1) /* unreasonable */ |
2514 | #endif |
2515 | |
11343788 |
2516 | void |
cea2e8a9 |
2517 | Perl_init_stacks(pTHX) |
79072805 |
2518 | { |
e336de0d |
2519 | /* start with 128-item stack and 8K cxstack */ |
3280af22 |
2520 | PL_curstackinfo = new_stackinfo(REASONABLE(128), |
e336de0d |
2521 | REASONABLE(8192/sizeof(PERL_CONTEXT) - 1)); |
3280af22 |
2522 | PL_curstackinfo->si_type = PERLSI_MAIN; |
2523 | PL_curstack = PL_curstackinfo->si_stack; |
2524 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
79072805 |
2525 | |
3280af22 |
2526 | PL_stack_base = AvARRAY(PL_curstack); |
2527 | PL_stack_sp = PL_stack_base; |
2528 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
8990e307 |
2529 | |
3280af22 |
2530 | New(50,PL_tmps_stack,REASONABLE(128),SV*); |
2531 | PL_tmps_floor = -1; |
2532 | PL_tmps_ix = -1; |
2533 | PL_tmps_max = REASONABLE(128); |
8990e307 |
2534 | |
3280af22 |
2535 | New(54,PL_markstack,REASONABLE(32),I32); |
2536 | PL_markstack_ptr = PL_markstack; |
2537 | PL_markstack_max = PL_markstack + REASONABLE(32); |
79072805 |
2538 | |
e336de0d |
2539 | SET_MARKBASE; |
2540 | |
3280af22 |
2541 | New(54,PL_scopestack,REASONABLE(32),I32); |
2542 | PL_scopestack_ix = 0; |
2543 | PL_scopestack_max = REASONABLE(32); |
79072805 |
2544 | |
3280af22 |
2545 | New(54,PL_savestack,REASONABLE(128),ANY); |
2546 | PL_savestack_ix = 0; |
2547 | PL_savestack_max = REASONABLE(128); |
79072805 |
2548 | |
3280af22 |
2549 | New(54,PL_retstack,REASONABLE(16),OP*); |
2550 | PL_retstack_ix = 0; |
2551 | PL_retstack_max = REASONABLE(16); |
378cc40b |
2552 | } |
33b78306 |
2553 | |
2ce36478 |
2554 | #undef REASONABLE |
2555 | |
76e3520e |
2556 | STATIC void |
cea2e8a9 |
2557 | S_nuke_stacks(pTHX) |
6e72f9df |
2558 | { |
e858de61 |
2559 | dTHR; |
3280af22 |
2560 | while (PL_curstackinfo->si_next) |
2561 | PL_curstackinfo = PL_curstackinfo->si_next; |
2562 | while (PL_curstackinfo) { |
2563 | PERL_SI *p = PL_curstackinfo->si_prev; |
bac4b2ad |
2564 | /* curstackinfo->si_stack got nuked by sv_free_arenas() */ |
3280af22 |
2565 | Safefree(PL_curstackinfo->si_cxstack); |
2566 | Safefree(PL_curstackinfo); |
2567 | PL_curstackinfo = p; |
e336de0d |
2568 | } |
3280af22 |
2569 | Safefree(PL_tmps_stack); |
2570 | Safefree(PL_markstack); |
2571 | Safefree(PL_scopestack); |
2572 | Safefree(PL_savestack); |
2573 | Safefree(PL_retstack); |
5f05dabc |
2574 | DEBUG( { |
3280af22 |
2575 | Safefree(PL_debname); |
2576 | Safefree(PL_debdelim); |
5f05dabc |
2577 | } ) |
378cc40b |
2578 | } |
33b78306 |
2579 | |
76e3520e |
2580 | #ifndef PERL_OBJECT |
760ac839 |
2581 | static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
76e3520e |
2582 | #endif |
7aa04957 |
2583 | |
76e3520e |
2584 | STATIC void |
cea2e8a9 |
2585 | S_init_lexer(pTHX) |
8990e307 |
2586 | { |
76e3520e |
2587 | #ifdef PERL_OBJECT |
2588 | PerlIO *tmpfp; |
2589 | #endif |
3280af22 |
2590 | tmpfp = PL_rsfp; |
2591 | PL_rsfp = Nullfp; |
2592 | lex_start(PL_linestr); |
2593 | PL_rsfp = tmpfp; |
79cb57f6 |
2594 | PL_subname = newSVpvn("main",4); |
8990e307 |
2595 | } |
2596 | |
76e3520e |
2597 | STATIC void |
cea2e8a9 |
2598 | S_init_predump_symbols(pTHX) |
45d8adaa |
2599 | { |
11343788 |
2600 | dTHR; |
93a17b20 |
2601 | GV *tmpgv; |
a0d0e21e |
2602 | GV *othergv; |
79072805 |
2603 | |
864dbfa3 |
2604 | sv_setpvn(get_sv("\"", TRUE), " ", 1); |
3280af22 |
2605 | PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
2606 | GvMULTI_on(PL_stdingv); |
2607 | IoIFP(GvIOp(PL_stdingv)) = PerlIO_stdin(); |
adbc6bb1 |
2608 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 |
2609 | GvMULTI_on(tmpgv); |
3280af22 |
2610 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_stdingv)); |
79072805 |
2611 | |
85e6fe83 |
2612 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 |
2613 | GvMULTI_on(tmpgv); |
760ac839 |
2614 | IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout(); |
4633a7c4 |
2615 | setdefout(tmpgv); |
adbc6bb1 |
2616 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 |
2617 | GvMULTI_on(tmpgv); |
3280af22 |
2618 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_defoutgv)); |
79072805 |
2619 | |
a0d0e21e |
2620 | othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
a5f75d66 |
2621 | GvMULTI_on(othergv); |
760ac839 |
2622 | IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr(); |
adbc6bb1 |
2623 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 |
2624 | GvMULTI_on(tmpgv); |
a0d0e21e |
2625 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv)); |
79072805 |
2626 | |
3280af22 |
2627 | PL_statname = NEWSV(66,0); /* last filename we did stat on */ |
ab821d7f |
2628 | |
3280af22 |
2629 | if (!PL_osname) |
2630 | PL_osname = savepv(OSNAME); |
79072805 |
2631 | } |
33b78306 |
2632 | |
76e3520e |
2633 | STATIC void |
cea2e8a9 |
2634 | S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env) |
33b78306 |
2635 | { |
a863c7d1 |
2636 | dTHR; |
79072805 |
2637 | char *s; |
2638 | SV *sv; |
2639 | GV* tmpgv; |
fe14fcc3 |
2640 | |
79072805 |
2641 | argc--,argv++; /* skip name of script */ |
3280af22 |
2642 | if (PL_doswitches) { |
79072805 |
2643 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
2644 | if (!argv[0][1]) |
2645 | break; |
2646 | if (argv[0][1] == '-') { |
2647 | argc--,argv++; |
2648 | break; |
2649 | } |
93a17b20 |
2650 | if (s = strchr(argv[0], '=')) { |
79072805 |
2651 | *s++ = '\0'; |
85e6fe83 |
2652 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 |
2653 | } |
2654 | else |
85e6fe83 |
2655 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 |
2656 | } |
79072805 |
2657 | } |
3280af22 |
2658 | PL_toptarget = NEWSV(0,0); |
2659 | sv_upgrade(PL_toptarget, SVt_PVFM); |
2660 | sv_setpvn(PL_toptarget, "", 0); |
2661 | PL_bodytarget = NEWSV(0,0); |
2662 | sv_upgrade(PL_bodytarget, SVt_PVFM); |
2663 | sv_setpvn(PL_bodytarget, "", 0); |
2664 | PL_formtarget = PL_bodytarget; |
79072805 |
2665 | |
bbce6d69 |
2666 | TAINT; |
85e6fe83 |
2667 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
3280af22 |
2668 | sv_setpv(GvSV(tmpgv),PL_origfilename); |
79072805 |
2669 | magicname("0", "0", 1); |
2670 | } |
85e6fe83 |
2671 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
3280af22 |
2672 | sv_setpv(GvSV(tmpgv),PL_origargv[0]); |
2673 | if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { |
2674 | GvMULTI_on(PL_argvgv); |
2675 | (void)gv_AVadd(PL_argvgv); |
2676 | av_clear(GvAVn(PL_argvgv)); |
79072805 |
2677 | for (; argc > 0; argc--,argv++) { |
3280af22 |
2678 | av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0)); |
79072805 |
2679 | } |
2680 | } |
3280af22 |
2681 | if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 |
2682 | HV *hv; |
3280af22 |
2683 | GvMULTI_on(PL_envgv); |
2684 | hv = GvHVn(PL_envgv); |
2685 | hv_magic(hv, PL_envgv, 'E'); |
a0d0e21e |
2686 | #ifndef VMS /* VMS doesn't have environ array */ |
4633a7c4 |
2687 | /* Note that if the supplied env parameter is actually a copy |
2688 | of the global environ then it may now point to free'd memory |
2689 | if the environment has been modified since. To avoid this |
2690 | problem we treat env==NULL as meaning 'use the default' |
2691 | */ |
2692 | if (!env) |
2693 | env = environ; |
5aabfad6 |
2694 | if (env != environ) |
79072805 |
2695 | environ[0] = Nullch; |
2696 | for (; *env; env++) { |
93a17b20 |
2697 | if (!(s = strchr(*env,'='))) |
79072805 |
2698 | continue; |
2699 | *s++ = '\0'; |
60ce6247 |
2700 | #if defined(MSDOS) |
137443ea |
2701 | (void)strupr(*env); |
2702 | #endif |
79072805 |
2703 | sv = newSVpv(s--,0); |
2704 | (void)hv_store(hv, *env, s - *env, sv, 0); |
2705 | *s = '='; |
3e3baf6d |
2706 | #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV) |
2707 | /* Sins of the RTL. See note in my_setenv(). */ |
76e3520e |
2708 | (void)PerlEnv_putenv(savepv(*env)); |
3e3baf6d |
2709 | #endif |
fe14fcc3 |
2710 | } |
4550b24a |
2711 | #endif |
2712 | #ifdef DYNAMIC_ENV_FETCH |
2713 | HvNAME(hv) = savepv(ENV_HV_NAME); |
2714 | #endif |
79072805 |
2715 | } |
bbce6d69 |
2716 | TAINT_NOT; |
85e6fe83 |
2717 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
1e422769 |
2718 | sv_setiv(GvSV(tmpgv), (IV)getpid()); |
33b78306 |
2719 | } |
34de22dd |
2720 | |
76e3520e |
2721 | STATIC void |
cea2e8a9 |
2722 | S_init_perllib(pTHX) |
34de22dd |
2723 | { |
85e6fe83 |
2724 | char *s; |
3280af22 |
2725 | if (!PL_tainting) { |
552a7a9b |
2726 | #ifndef VMS |
76e3520e |
2727 | s = PerlEnv_getenv("PERL5LIB"); |
85e6fe83 |
2728 | if (s) |
774d564b |
2729 | incpush(s, TRUE); |
85e6fe83 |
2730 | else |
76e3520e |
2731 | incpush(PerlEnv_getenv("PERLLIB"), FALSE); |
552a7a9b |
2732 | #else /* VMS */ |
2733 | /* Treat PERL5?LIB as a possible search list logical name -- the |
2734 | * "natural" VMS idiom for a Unix path string. We allow each |
2735 | * element to be a set of |-separated directories for compatibility. |
2736 | */ |
2737 | char buf[256]; |
2738 | int idx = 0; |
2739 | if (my_trnlnm("PERL5LIB",buf,0)) |
774d564b |
2740 | do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx)); |
552a7a9b |
2741 | else |
774d564b |
2742 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE); |
552a7a9b |
2743 | #endif /* VMS */ |
85e6fe83 |
2744 | } |
34de22dd |
2745 | |
c90c0ff4 |
2746 | /* Use the ~-expanded versions of APPLLIB (undocumented), |
dfe9444c |
2747 | ARCHLIB PRIVLIB SITEARCH and SITELIB |
df5cef82 |
2748 | */ |
4633a7c4 |
2749 | #ifdef APPLLIB_EXP |
43051805 |
2750 | incpush(APPLLIB_EXP, TRUE); |
16d20bd9 |
2751 | #endif |
4633a7c4 |
2752 | |
fed7345c |
2753 | #ifdef ARCHLIB_EXP |
774d564b |
2754 | incpush(ARCHLIB_EXP, FALSE); |
a0d0e21e |
2755 | #endif |
fed7345c |
2756 | #ifndef PRIVLIB_EXP |
2757 | #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" |
34de22dd |
2758 | #endif |
00dc2f4f |
2759 | #if defined(WIN32) |
2760 | incpush(PRIVLIB_EXP, TRUE); |
2761 | #else |
774d564b |
2762 | incpush(PRIVLIB_EXP, FALSE); |
00dc2f4f |
2763 | #endif |
4633a7c4 |
2764 | |
2765 | #ifdef SITEARCH_EXP |
774d564b |
2766 | incpush(SITEARCH_EXP, FALSE); |
4633a7c4 |
2767 | #endif |
2768 | #ifdef SITELIB_EXP |
00dc2f4f |
2769 | #if defined(WIN32) |
2770 | incpush(SITELIB_EXP, TRUE); |
2771 | #else |
774d564b |
2772 | incpush(SITELIB_EXP, FALSE); |
4633a7c4 |
2773 | #endif |
00dc2f4f |
2774 | #endif |
3280af22 |
2775 | if (!PL_tainting) |
774d564b |
2776 | incpush(".", FALSE); |
2777 | } |
2778 | |
2779 | #if defined(DOSISH) |
2780 | # define PERLLIB_SEP ';' |
2781 | #else |
2782 | # if defined(VMS) |
2783 | # define PERLLIB_SEP '|' |
2784 | # else |
2785 | # define PERLLIB_SEP ':' |
2786 | # endif |
2787 | #endif |
2788 | #ifndef PERLLIB_MANGLE |
2789 | # define PERLLIB_MANGLE(s,n) (s) |
2790 | #endif |
2791 | |
76e3520e |
2792 | STATIC void |
cea2e8a9 |
2793 | S_incpush(pTHX_ char *p, int addsubdirs) |
774d564b |
2794 | { |
2795 | SV *subdir = Nullsv; |
774d564b |
2796 | |
2797 | if (!p) |
2798 | return; |
2799 | |
2800 | if (addsubdirs) { |
00db4c45 |
2801 | subdir = sv_newmortal(); |
3280af22 |
2802 | if (!PL_archpat_auto) { |
2803 | STRLEN len = (sizeof(ARCHNAME) + strlen(PL_patchlevel) |
774d564b |
2804 | + sizeof("//auto")); |
3280af22 |
2805 | New(55, PL_archpat_auto, len, char); |
2806 | sprintf(PL_archpat_auto, "/%s/%s/auto", ARCHNAME, PL_patchlevel); |
aa689395 |
2807 | #ifdef VMS |
2808 | for (len = sizeof(ARCHNAME) + 2; |
6b88bc9c |
2809 | PL_archpat_auto[len] != '\0' && PL_archpat_auto[len] != '/'; len++) |
2810 | if (PL_archpat_auto[len] == '.') PL_archpat_auto[len] = '_'; |
aa689395 |
2811 | #endif |
774d564b |
2812 | } |
2813 | } |
2814 | |
2815 | /* Break at all separators */ |
2816 | while (p && *p) { |
8c52afec |
2817 | SV *libdir = NEWSV(55,0); |
774d564b |
2818 | char *s; |
2819 | |
2820 | /* skip any consecutive separators */ |
2821 | while ( *p == PERLLIB_SEP ) { |
2822 | /* Uncomment the next line for PATH semantics */ |
79cb57f6 |
2823 | /* av_push(GvAVn(PL_incgv), newSVpvn(".", 1)); */ |
774d564b |
2824 | p++; |
2825 | } |
2826 | |
2827 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { |
2828 | sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)), |
2829 | (STRLEN)(s - p)); |
2830 | p = s + 1; |
2831 | } |
2832 | else { |
2833 | sv_setpv(libdir, PERLLIB_MANGLE(p, 0)); |
2834 | p = Nullch; /* break out */ |
2835 | } |
2836 | |
2837 | /* |
2838 | * BEFORE pushing libdir onto @INC we may first push version- and |
2839 | * archname-specific sub-directories. |
2840 | */ |
2841 | if (addsubdirs) { |
2842 | struct stat tmpstatbuf; |
aa689395 |
2843 | #ifdef VMS |
2844 | char *unix; |
2845 | STRLEN len; |
774d564b |
2846 | |
2d8e6c8d |
2847 | if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) { |
aa689395 |
2848 | len = strlen(unix); |
2849 | while (unix[len-1] == '/') len--; /* Cosmetic */ |
2850 | sv_usepvn(libdir,unix,len); |
2851 | } |
2852 | else |
2853 | PerlIO_printf(PerlIO_stderr(), |
2854 | "Failed to unixify @INC element \"%s\"\n", |
2d8e6c8d |
2855 | SvPV(libdir,len)); |
aa689395 |
2856 | #endif |
4fdae800 |
2857 | /* .../archname/version if -d .../archname/version/auto */ |
774d564b |
2858 | sv_setsv(subdir, libdir); |
3280af22 |
2859 | sv_catpv(subdir, PL_archpat_auto); |
76e3520e |
2860 | if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 && |
774d564b |
2861 | S_ISDIR(tmpstatbuf.st_mode)) |
3280af22 |
2862 | av_push(GvAVn(PL_incgv), |
79cb57f6 |
2863 | newSVpvn(SvPVX(subdir), SvCUR(subdir) - sizeof "auto")); |
774d564b |
2864 | |
4fdae800 |
2865 | /* .../archname if -d .../archname/auto */ |
774d564b |
2866 | sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME), |
3280af22 |
2867 | strlen(PL_patchlevel) + 1, "", 0); |
76e3520e |
2868 | if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 && |
774d564b |
2869 | S_ISDIR(tmpstatbuf.st_mode)) |
3280af22 |
2870 | av_push(GvAVn(PL_incgv), |
79cb57f6 |
2871 | newSVpvn(SvPVX(subdir), SvCUR(subdir) - sizeof "auto")); |
774d564b |
2872 | } |
2873 | |
2874 | /* finally push this lib directory on the end of @INC */ |
3280af22 |
2875 | av_push(GvAVn(PL_incgv), libdir); |
774d564b |
2876 | } |
34de22dd |
2877 | } |
93a17b20 |
2878 | |
199100c8 |
2879 | #ifdef USE_THREADS |
76e3520e |
2880 | STATIC struct perl_thread * |
cea2e8a9 |
2881 | S_init_main_thread(pTHX) |
199100c8 |
2882 | { |
cea2e8a9 |
2883 | #ifndef PERL_IMPLICIT_CONTEXT |
52e1cb5e |
2884 | struct perl_thread *thr; |
cea2e8a9 |
2885 | #endif |
199100c8 |
2886 | XPV *xpv; |
2887 | |
52e1cb5e |
2888 | Newz(53, thr, 1, struct perl_thread); |
533c011a |
2889 | PL_curcop = &PL_compiling; |
199100c8 |
2890 | thr->cvcache = newHV(); |
54b9620d |
2891 | thr->threadsv = newAV(); |
940cb80d |
2892 | /* thr->threadsvp is set when find_threadsv is called */ |
199100c8 |
2893 | thr->specific = newAV(); |
38a03e6e |
2894 | thr->errhv = newHV(); |
199100c8 |
2895 | thr->flags = THRf_R_JOINABLE; |
2896 | MUTEX_INIT(&thr->mutex); |
2897 | /* Handcraft thrsv similarly to mess_sv */ |
533c011a |
2898 | New(53, PL_thrsv, 1, SV); |
199100c8 |
2899 | Newz(53, xpv, 1, XPV); |
533c011a |
2900 | SvFLAGS(PL_thrsv) = SVt_PV; |
2901 | SvANY(PL_thrsv) = (void*)xpv; |
2902 | SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */ |
2903 | SvPVX(PL_thrsv) = (char*)thr; |
2904 | SvCUR_set(PL_thrsv, sizeof(thr)); |
2905 | SvLEN_set(PL_thrsv, sizeof(thr)); |
2906 | *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */ |
2907 | thr->oursv = PL_thrsv; |
2908 | PL_chopset = " \n-"; |
3967c732 |
2909 | PL_dumpindent = 4; |
533c011a |
2910 | |
2911 | MUTEX_LOCK(&PL_threads_mutex); |
2912 | PL_nthreads++; |
199100c8 |
2913 | thr->tid = 0; |
2914 | thr->next = thr; |
2915 | thr->prev = thr; |
533c011a |
2916 | MUTEX_UNLOCK(&PL_threads_mutex); |
199100c8 |
2917 | |
4b026b9e |
2918 | #ifdef HAVE_THREAD_INTERN |
4f63d024 |
2919 | Perl_init_thread_intern(thr); |
235db74f |
2920 | #endif |
2921 | |
2922 | #ifdef SET_THREAD_SELF |
2923 | SET_THREAD_SELF(thr); |
199100c8 |
2924 | #else |
2925 | thr->self = pthread_self(); |
235db74f |
2926 | #endif /* SET_THREAD_SELF */ |
199100c8 |
2927 | SET_THR(thr); |
2928 | |
2929 | /* |
2930 | * These must come after the SET_THR because sv_setpvn does |
2931 | * SvTAINT and the taint fields require dTHR. |
2932 | */ |
533c011a |
2933 | PL_toptarget = NEWSV(0,0); |
2934 | sv_upgrade(PL_toptarget, SVt_PVFM); |
2935 | sv_setpvn(PL_toptarget, "", 0); |
2936 | PL_bodytarget = NEWSV(0,0); |
2937 | sv_upgrade(PL_bodytarget, SVt_PVFM); |
2938 | sv_setpvn(PL_bodytarget, "", 0); |
2939 | PL_formtarget = PL_bodytarget; |
79cb57f6 |
2940 | thr->errsv = newSVpvn("", 0); |
78857c3c |
2941 | (void) find_threadsv("@"); /* Ensure $@ is initialised early */ |
5c0ca799 |
2942 | |
533c011a |
2943 | PL_maxscream = -1; |
cea2e8a9 |
2944 | PL_regcompp = FUNC_NAME_TO_PTR(Perl_pregcomp); |
2945 | PL_regexecp = FUNC_NAME_TO_PTR(Perl_regexec_flags); |
533c011a |
2946 | PL_regindent = 0; |
2947 | PL_reginterp_cnt = 0; |
5c0ca799 |
2948 | |
199100c8 |
2949 | return thr; |
2950 | } |
2951 | #endif /* USE_THREADS */ |
2952 | |
93a17b20 |
2953 | void |
864dbfa3 |
2954 | Perl_call_list(pTHX_ I32 oldscope, AV *paramList) |
93a17b20 |
2955 | { |
11343788 |
2956 | dTHR; |
312caa8e |
2957 | SV *atsv = ERRSV; |
3280af22 |
2958 | line_t oldline = PL_curcop->cop_line; |
312caa8e |
2959 | CV *cv; |
22921e25 |
2960 | STRLEN len; |
6224f72b |
2961 | int ret; |
93a17b20 |
2962 | |
76e3520e |
2963 | while (AvFILL(paramList) >= 0) { |
312caa8e |
2964 | cv = (CV*)av_shift(paramList); |
8990e307 |
2965 | SAVEFREESV(cv); |
cea2e8a9 |
2966 | CALLPROTECT(aTHX_ &ret, FUNC_NAME_TO_PTR(S_call_list_body), cv); |
6224f72b |
2967 | switch (ret) { |
312caa8e |
2968 | case 0: |
2969 | (void)SvPV(atsv, len); |
2970 | if (len) { |
2971 | PL_curcop = &PL_compiling; |
2972 | PL_curcop->cop_line = oldline; |
2973 | if (paramList == PL_beginav) |
2974 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); |
2975 | else |
2976 | sv_catpv(atsv, "END failed--cleanup aborted"); |
2977 | while (PL_scopestack_ix > oldscope) |
2978 | LEAVE; |
cea2e8a9 |
2979 | Perl_croak(aTHX_ "%s", SvPVX(atsv)); |
a0d0e21e |
2980 | } |
85e6fe83 |
2981 | break; |
6224f72b |
2982 | case 1: |
f86702cc |
2983 | STATUS_ALL_FAILURE; |
85e6fe83 |
2984 | /* FALL THROUGH */ |
6224f72b |
2985 | case 2: |
85e6fe83 |
2986 | /* my_exit() was called */ |
3280af22 |
2987 | while (PL_scopestack_ix > oldscope) |
2ae324a7 |
2988 | LEAVE; |
84902520 |
2989 | FREETMPS; |
3280af22 |
2990 | PL_curstash = PL_defstash; |
2991 | if (PL_endav) |
2992 | call_list(oldscope, PL_endav); |
3280af22 |
2993 | PL_curcop = &PL_compiling; |
2994 | PL_curcop->cop_line = oldline; |
2995 | if (PL_statusvalue) { |
2996 | if (paramList == PL_beginav) |
cea2e8a9 |
2997 | Perl_croak(aTHX_ "BEGIN failed--compilation aborted"); |
85e6fe83 |
2998 | else |
cea2e8a9 |
2999 | Perl_croak(aTHX_ "END failed--cleanup aborted"); |
85e6fe83 |
3000 | } |
f86702cc |
3001 | my_exit_jump(); |
85e6fe83 |
3002 | /* NOTREACHED */ |
6224f72b |
3003 | case 3: |
312caa8e |
3004 | if (PL_restartop) { |
3005 | PL_curcop = &PL_compiling; |
3006 | PL_curcop->cop_line = oldline; |
3007 | JMPENV_JUMP(3); |
85e6fe83 |
3008 | } |
312caa8e |
3009 | PerlIO_printf(PerlIO_stderr(), "panic: restartop\n"); |
3010 | FREETMPS; |
3011 | break; |
8990e307 |
3012 | } |
93a17b20 |
3013 | } |
93a17b20 |
3014 | } |
93a17b20 |
3015 | |
312caa8e |
3016 | STATIC void * |
cea2e8a9 |
3017 | S_call_list_body(pTHX_ va_list args) |
312caa8e |
3018 | { |
3019 | dTHR; |
3020 | CV *cv = va_arg(args, CV*); |
3021 | |
3022 | PUSHMARK(PL_stack_sp); |
864dbfa3 |
3023 | call_sv((SV*)cv, G_EVAL|G_DISCARD); |
312caa8e |
3024 | return NULL; |
3025 | } |
3026 | |
f86702cc |
3027 | void |
864dbfa3 |
3028 | Perl_my_exit(pTHX_ U32 status) |
f86702cc |
3029 | { |
5dc0d613 |
3030 | dTHR; |
3031 | |
8b73bbec |
3032 | DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n", |
a863c7d1 |
3033 | thr, (unsigned long) status)); |
f86702cc |
3034 | switch (status) { |
3035 | case 0: |
3036 | STATUS_ALL_SUCCESS; |
3037 | break; |
3038 | case 1: |
3039 | STATUS_ALL_FAILURE; |
3040 | break; |
3041 | default: |
3042 | STATUS_NATIVE_SET(status); |
3043 | break; |
3044 | } |
3045 | my_exit_jump(); |
3046 | } |
3047 | |
3048 | void |
864dbfa3 |
3049 | Perl_my_failure_exit(pTHX) |
f86702cc |
3050 | { |
3051 | #ifdef VMS |
3052 | if (vaxc$errno & 1) { |
4fdae800 |
3053 | if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */ |
3054 | STATUS_NATIVE_SET(44); |
f86702cc |
3055 | } |
3056 | else { |
ff0cee69 |
3057 | if (!vaxc$errno && errno) /* unlikely */ |
4fdae800 |
3058 | STATUS_NATIVE_SET(44); |
f86702cc |
3059 | else |
4fdae800 |
3060 | STATUS_NATIVE_SET(vaxc$errno); |
f86702cc |
3061 | } |
3062 | #else |
9b599b2a |
3063 | int exitstatus; |
f86702cc |
3064 | if (errno & 255) |
3065 | STATUS_POSIX_SET(errno); |
9b599b2a |
3066 | else { |
3067 | exitstatus = STATUS_POSIX >> 8; |
3068 | if (exitstatus & 255) |
3069 | STATUS_POSIX_SET(exitstatus); |
3070 | else |
3071 | STATUS_POSIX_SET(255); |
3072 | } |
f86702cc |
3073 | #endif |
3074 | my_exit_jump(); |
93a17b20 |
3075 | } |
3076 | |
76e3520e |
3077 | STATIC void |
cea2e8a9 |
3078 | S_my_exit_jump(pTHX) |
f86702cc |
3079 | { |
de616352 |
3080 | dTHR; |
c09156bb |
3081 | register PERL_CONTEXT *cx; |
f86702cc |
3082 | I32 gimme; |
3083 | SV **newsp; |
3084 | |
3280af22 |
3085 | if (PL_e_script) { |
3086 | SvREFCNT_dec(PL_e_script); |
3087 | PL_e_script = Nullsv; |
f86702cc |
3088 | } |
3089 | |
3280af22 |
3090 | POPSTACK_TO(PL_mainstack); |
f86702cc |
3091 | if (cxstack_ix >= 0) { |
3092 | if (cxstack_ix > 0) |
3093 | dounwind(0); |
3280af22 |
3094 | POPBLOCK(cx,PL_curpm); |
f86702cc |
3095 | LEAVE; |
3096 | } |
ff0cee69 |
3097 | |
6224f72b |
3098 | JMPENV_JUMP(2); |
f86702cc |
3099 | } |
873ef191 |
3100 | |
7a5f8e82 |
3101 | #ifdef PERL_OBJECT |
3102 | #define NO_XSLOCKS |
3103 | #endif /* PERL_OBJECT */ |
873ef191 |
3104 | |
3105 | #include "XSUB.h" |
3106 | |
864dbfa3 |
3107 | STATIC I32 |
cea2e8a9 |
3108 | S_read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen) |
873ef191 |
3109 | { |
3110 | char *p, *nl; |
3280af22 |
3111 | p = SvPVX(PL_e_script); |
873ef191 |
3112 | nl = strchr(p, '\n'); |
3280af22 |
3113 | nl = (nl) ? nl+1 : SvEND(PL_e_script); |
7dfe3f66 |
3114 | if (nl-p == 0) { |
cea2e8a9 |
3115 | filter_del(S_read_e_script); |
873ef191 |
3116 | return 0; |
7dfe3f66 |
3117 | } |
873ef191 |
3118 | sv_catpvn(buf_sv, p, nl-p); |
3280af22 |
3119 | sv_chop(PL_e_script, nl); |
873ef191 |
3120 | return 1; |
3121 | } |
3122 | |
1163b5c4 |
3123 | |