Commit | Line | Data |
a0d0e21e |
1 | /* mg.c |
79072805 |
2 | * |
9607fc9c |
3 | * Copyright (c) 1991-1997, Larry Wall |
79072805 |
4 | * |
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. |
7 | * |
a0d0e21e |
8 | */ |
9 | |
10 | /* |
11 | * "Sam sat on the ground and put his head in his hands. 'I wish I had never |
12 | * come here, and I don't want to see no more magic,' he said, and fell silent." |
79072805 |
13 | */ |
14 | |
15 | #include "EXTERN.h" |
16 | #include "perl.h" |
17 | |
e6d9441c |
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 | |
5cd24f17 |
23 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 |
24 | # ifndef NGROUPS |
25 | # define NGROUPS 32 |
26 | # endif |
27 | #endif |
28 | |
c07a80fd |
29 | /* |
30 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. |
31 | */ |
32 | |
33 | struct magic_state { |
34 | SV* mgs_sv; |
35 | U32 mgs_flags; |
36 | }; |
37 | typedef struct magic_state MGS; |
38 | |
39 | static void restore_magic _((void *p)); |
40 | |
48e43a1c |
41 | static void |
8ac85365 |
42 | save_magic(MGS *mgs, SV *sv) |
c07a80fd |
43 | { |
c07a80fd |
44 | assert(SvMAGICAL(sv)); |
45 | |
c07a80fd |
46 | mgs->mgs_sv = sv; |
47 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); |
48 | SAVEDESTRUCTOR(restore_magic, mgs); |
49 | |
50 | SvMAGICAL_off(sv); |
51 | SvREADONLY_off(sv); |
52 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd |
53 | } |
54 | |
55 | static void |
8ac85365 |
56 | restore_magic(void *p) |
c07a80fd |
57 | { |
48e43a1c |
58 | MGS* mgs = (MGS*)p; |
c07a80fd |
59 | SV* sv = mgs->mgs_sv; |
60 | |
61 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
62 | { |
63 | if (mgs->mgs_flags) |
64 | SvFLAGS(sv) |= mgs->mgs_flags; |
65 | else |
66 | mg_magical(sv); |
67 | if (SvGMAGICAL(sv)) |
68 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
69 | } |
c07a80fd |
70 | } |
71 | |
8e07c86e |
72 | |
8990e307 |
73 | void |
8ac85365 |
74 | mg_magical(SV *sv) |
8990e307 |
75 | { |
76 | MAGIC* mg; |
77 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
78 | MGVTBL* vtbl = mg->mg_virtual; |
79 | if (vtbl) { |
a0d0e21e |
80 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 |
81 | SvGMAGICAL_on(sv); |
82 | if (vtbl->svt_set) |
83 | SvSMAGICAL_on(sv); |
84 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
85 | SvRMAGICAL_on(sv); |
86 | } |
87 | } |
88 | } |
89 | |
79072805 |
90 | int |
8ac85365 |
91 | mg_get(SV *sv) |
79072805 |
92 | { |
48e43a1c |
93 | MGS mgs; |
79072805 |
94 | MAGIC* mg; |
c6496cc7 |
95 | MAGIC** mgp; |
760ac839 |
96 | int mgp_valid = 0; |
463ee0b2 |
97 | |
c07a80fd |
98 | ENTER; |
48e43a1c |
99 | save_magic(&mgs, sv); |
463ee0b2 |
100 | |
c6496cc7 |
101 | mgp = &SvMAGIC(sv); |
102 | while ((mg = *mgp) != 0) { |
79072805 |
103 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
104 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
79072805 |
105 | (*vtbl->svt_get)(sv, mg); |
c6496cc7 |
106 | /* Ignore this magic if it's been deleted */ |
48e43a1c |
107 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
108 | (mg->mg_flags & MGf_GSKIP)) |
109 | mgs.mgs_flags = 0; |
a0d0e21e |
110 | } |
c6496cc7 |
111 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 |
112 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 |
113 | mgp = &mg->mg_moremagic; |
760ac839 |
114 | mgp_valid = 1; |
115 | } |
116 | else |
117 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ |
79072805 |
118 | } |
463ee0b2 |
119 | |
c07a80fd |
120 | LEAVE; |
79072805 |
121 | return 0; |
122 | } |
123 | |
124 | int |
8ac85365 |
125 | mg_set(SV *sv) |
79072805 |
126 | { |
48e43a1c |
127 | MGS mgs; |
79072805 |
128 | MAGIC* mg; |
463ee0b2 |
129 | MAGIC* nextmg; |
130 | |
c07a80fd |
131 | ENTER; |
48e43a1c |
132 | save_magic(&mgs, sv); |
463ee0b2 |
133 | |
134 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { |
79072805 |
135 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 |
136 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e |
137 | if (mg->mg_flags & MGf_GSKIP) { |
138 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ |
48e43a1c |
139 | mgs.mgs_flags = 0; |
a0d0e21e |
140 | } |
79072805 |
141 | if (vtbl && vtbl->svt_set) |
142 | (*vtbl->svt_set)(sv, mg); |
143 | } |
463ee0b2 |
144 | |
c07a80fd |
145 | LEAVE; |
79072805 |
146 | return 0; |
147 | } |
148 | |
149 | U32 |
8ac85365 |
150 | mg_len(SV *sv) |
79072805 |
151 | { |
152 | MAGIC* mg; |
748a9306 |
153 | char *junk; |
463ee0b2 |
154 | STRLEN len; |
463ee0b2 |
155 | |
79072805 |
156 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
157 | MGVTBL* vtbl = mg->mg_virtual; |
85e6fe83 |
158 | if (vtbl && vtbl->svt_len) { |
48e43a1c |
159 | MGS mgs; |
160 | |
c07a80fd |
161 | ENTER; |
48e43a1c |
162 | save_magic(&mgs, sv); |
a0d0e21e |
163 | /* omit MGf_GSKIP -- not changed here */ |
85e6fe83 |
164 | len = (*vtbl->svt_len)(sv, mg); |
c07a80fd |
165 | LEAVE; |
85e6fe83 |
166 | return len; |
167 | } |
168 | } |
169 | |
748a9306 |
170 | junk = SvPV(sv, len); |
463ee0b2 |
171 | return len; |
79072805 |
172 | } |
173 | |
174 | int |
8ac85365 |
175 | mg_clear(SV *sv) |
79072805 |
176 | { |
48e43a1c |
177 | MGS mgs; |
79072805 |
178 | MAGIC* mg; |
463ee0b2 |
179 | |
c07a80fd |
180 | ENTER; |
48e43a1c |
181 | save_magic(&mgs, sv); |
463ee0b2 |
182 | |
79072805 |
183 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
184 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
185 | /* omit GSKIP -- never set here */ |
186 | |
79072805 |
187 | if (vtbl && vtbl->svt_clear) |
188 | (*vtbl->svt_clear)(sv, mg); |
189 | } |
463ee0b2 |
190 | |
c07a80fd |
191 | LEAVE; |
79072805 |
192 | return 0; |
193 | } |
194 | |
93a17b20 |
195 | MAGIC* |
8ac85365 |
196 | mg_find(SV *sv, int type) |
93a17b20 |
197 | { |
198 | MAGIC* mg; |
93a17b20 |
199 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
200 | if (mg->mg_type == type) |
201 | return mg; |
202 | } |
203 | return 0; |
204 | } |
205 | |
79072805 |
206 | int |
8ac85365 |
207 | mg_copy(SV *sv, SV *nsv, char *key, I32 klen) |
79072805 |
208 | { |
463ee0b2 |
209 | int count = 0; |
79072805 |
210 | MAGIC* mg; |
463ee0b2 |
211 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
212 | if (isUPPER(mg->mg_type)) { |
a0d0e21e |
213 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 |
214 | count++; |
79072805 |
215 | } |
79072805 |
216 | } |
463ee0b2 |
217 | return count; |
79072805 |
218 | } |
219 | |
220 | int |
8ac85365 |
221 | mg_free(SV *sv) |
79072805 |
222 | { |
223 | MAGIC* mg; |
224 | MAGIC* moremagic; |
225 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { |
226 | MGVTBL* vtbl = mg->mg_virtual; |
227 | moremagic = mg->mg_moremagic; |
228 | if (vtbl && vtbl->svt_free) |
229 | (*vtbl->svt_free)(sv, mg); |
93a17b20 |
230 | if (mg->mg_ptr && mg->mg_type != 'g') |
88e89b8a |
231 | if (mg->mg_len >= 0) |
232 | Safefree(mg->mg_ptr); |
233 | else if (mg->mg_len == HEf_SVKEY) |
234 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 |
235 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 |
236 | SvREFCNT_dec(mg->mg_obj); |
79072805 |
237 | Safefree(mg); |
238 | } |
239 | SvMAGIC(sv) = 0; |
240 | return 0; |
241 | } |
242 | |
243 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
244 | #include <signal.h> |
245 | #endif |
246 | |
93a17b20 |
247 | U32 |
8ac85365 |
248 | magic_len(SV *sv, MAGIC *mg) |
93a17b20 |
249 | { |
a863c7d1 |
250 | dTHR; |
93a17b20 |
251 | register I32 paren; |
252 | register char *s; |
253 | register I32 i; |
bbce6d69 |
254 | register REGEXP *rx; |
748a9306 |
255 | char *t; |
93a17b20 |
256 | |
257 | switch (*mg->mg_ptr) { |
258 | case '1': case '2': case '3': case '4': |
259 | case '5': case '6': case '7': case '8': case '9': case '&': |
bbce6d69 |
260 | if (curpm && (rx = curpm->op_pmregexp)) { |
93a17b20 |
261 | paren = atoi(mg->mg_ptr); |
262 | getparen: |
bbce6d69 |
263 | if (paren <= rx->nparens && |
264 | (s = rx->startp[paren]) && |
265 | (t = rx->endp[paren])) |
266 | { |
748a9306 |
267 | i = t - s; |
71be2cbc |
268 | if (i >= 0) |
93a17b20 |
269 | return i; |
93a17b20 |
270 | } |
93a17b20 |
271 | } |
748a9306 |
272 | return 0; |
93a17b20 |
273 | case '+': |
bbce6d69 |
274 | if (curpm && (rx = curpm->op_pmregexp)) { |
275 | paren = rx->lastparen; |
13f57bf8 |
276 | if (paren) |
277 | goto getparen; |
93a17b20 |
278 | } |
748a9306 |
279 | return 0; |
93a17b20 |
280 | case '`': |
bbce6d69 |
281 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
282 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 |
283 | i = rx->startp[0] - s; |
71be2cbc |
284 | if (i >= 0) |
93a17b20 |
285 | return i; |
93a17b20 |
286 | } |
93a17b20 |
287 | } |
748a9306 |
288 | return 0; |
93a17b20 |
289 | case '\'': |
bbce6d69 |
290 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
291 | if (rx->subend && (s = rx->endp[0])) { |
292 | i = rx->subend - s; |
293 | if (i >= 0) |
5cd24f17 |
294 | return i; |
93a17b20 |
295 | } |
93a17b20 |
296 | } |
748a9306 |
297 | return 0; |
93a17b20 |
298 | case ',': |
299 | return (STRLEN)ofslen; |
300 | case '\\': |
301 | return (STRLEN)orslen; |
302 | } |
303 | magic_get(sv,mg); |
304 | if (!SvPOK(sv) && SvNIOK(sv)) |
463ee0b2 |
305 | sv_2pv(sv, &na); |
93a17b20 |
306 | if (SvPOK(sv)) |
307 | return SvCUR(sv); |
308 | return 0; |
309 | } |
310 | |
79072805 |
311 | int |
8ac85365 |
312 | magic_get(SV *sv, MAGIC *mg) |
79072805 |
313 | { |
a863c7d1 |
314 | dTHR; |
79072805 |
315 | register I32 paren; |
316 | register char *s; |
317 | register I32 i; |
bbce6d69 |
318 | register REGEXP *rx; |
748a9306 |
319 | char *t; |
79072805 |
320 | |
321 | switch (*mg->mg_ptr) { |
748a9306 |
322 | case '\001': /* ^A */ |
323 | sv_setsv(sv, bodytarget); |
324 | break; |
79072805 |
325 | case '\004': /* ^D */ |
188ea221 |
326 | sv_setiv(sv, (IV)(debug & 32767)); |
79072805 |
327 | break; |
28f23441 |
328 | case '\005': /* ^E */ |
329 | #ifdef VMS |
330 | { |
331 | # include <descrip.h> |
332 | # include <starlet.h> |
333 | char msg[255]; |
334 | $DESCRIPTOR(msgdsc,msg); |
946ec16e |
335 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 |
336 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
337 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); |
338 | else |
339 | sv_setpv(sv,""); |
340 | } |
341 | #else |
88e89b8a |
342 | #ifdef OS2 |
fb73857a |
343 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
344 | sv_setnv(sv, (double)errno); |
345 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
346 | } else { |
347 | if (errno != errno_isOS2) |
348 | Perl_rc = _syserrno(); |
349 | sv_setnv(sv, (double)Perl_rc); |
350 | sv_setpv(sv, os2error(Perl_rc)); |
351 | } |
88e89b8a |
352 | #else |
946ec16e |
353 | sv_setnv(sv, (double)errno); |
28f23441 |
354 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
355 | #endif |
88e89b8a |
356 | #endif |
946ec16e |
357 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 |
358 | break; |
79072805 |
359 | case '\006': /* ^F */ |
188ea221 |
360 | sv_setiv(sv, (IV)maxsysfd); |
79072805 |
361 | break; |
a0d0e21e |
362 | case '\010': /* ^H */ |
188ea221 |
363 | sv_setiv(sv, (IV)hints); |
a0d0e21e |
364 | break; |
79072805 |
365 | case '\t': /* ^I */ |
366 | if (inplace) |
367 | sv_setpv(sv, inplace); |
368 | else |
188ea221 |
369 | sv_setsv(sv, &sv_undef); |
79072805 |
370 | break; |
28f23441 |
371 | case '\017': /* ^O */ |
188ea221 |
372 | sv_setpv(sv, osname); |
28f23441 |
373 | break; |
79072805 |
374 | case '\020': /* ^P */ |
188ea221 |
375 | sv_setiv(sv, (IV)perldb); |
79072805 |
376 | break; |
fb73857a |
377 | case '\023': /* ^S */ |
d58bf5aa |
378 | { |
379 | dTHR; |
380 | if (lex_state != LEX_NOTPARSING) |
381 | SvOK_off(sv); |
382 | else if (in_eval) |
383 | sv_setiv(sv, 1); |
384 | else |
385 | sv_setiv(sv, 0); |
386 | } |
fb73857a |
387 | break; |
79072805 |
388 | case '\024': /* ^T */ |
88e89b8a |
389 | #ifdef BIG_TIME |
188ea221 |
390 | sv_setnv(sv, basetime); |
88e89b8a |
391 | #else |
188ea221 |
392 | sv_setiv(sv, (IV)basetime); |
88e89b8a |
393 | #endif |
79072805 |
394 | break; |
395 | case '\027': /* ^W */ |
188ea221 |
396 | sv_setiv(sv, (IV)dowarn); |
79072805 |
397 | break; |
398 | case '1': case '2': case '3': case '4': |
399 | case '5': case '6': case '7': case '8': case '9': case '&': |
bbce6d69 |
400 | if (curpm && (rx = curpm->op_pmregexp)) { |
a863c7d1 |
401 | /* |
402 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); |
403 | * XXX Does the new way break anything? |
404 | */ |
405 | paren = atoi(mg->mg_ptr); |
79072805 |
406 | getparen: |
bbce6d69 |
407 | if (paren <= rx->nparens && |
408 | (s = rx->startp[paren]) && |
409 | (t = rx->endp[paren])) |
410 | { |
748a9306 |
411 | i = t - s; |
13f57bf8 |
412 | getrx: |
748a9306 |
413 | if (i >= 0) { |
13f57bf8 |
414 | bool was_tainted; |
415 | if (tainting) { |
416 | was_tainted = tainted; |
417 | tainted = FALSE; |
418 | } |
79072805 |
419 | sv_setpvn(sv,s,i); |
13f57bf8 |
420 | if (tainting) |
421 | tainted = was_tainted || rx->exec_tainted; |
748a9306 |
422 | break; |
423 | } |
79072805 |
424 | } |
79072805 |
425 | } |
748a9306 |
426 | sv_setsv(sv,&sv_undef); |
79072805 |
427 | break; |
428 | case '+': |
bbce6d69 |
429 | if (curpm && (rx = curpm->op_pmregexp)) { |
430 | paren = rx->lastparen; |
a0d0e21e |
431 | if (paren) |
432 | goto getparen; |
79072805 |
433 | } |
748a9306 |
434 | sv_setsv(sv,&sv_undef); |
79072805 |
435 | break; |
436 | case '`': |
bbce6d69 |
437 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
438 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 |
439 | i = rx->startp[0] - s; |
13f57bf8 |
440 | goto getrx; |
79072805 |
441 | } |
79072805 |
442 | } |
748a9306 |
443 | sv_setsv(sv,&sv_undef); |
79072805 |
444 | break; |
445 | case '\'': |
bbce6d69 |
446 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
447 | if (rx->subend && (s = rx->endp[0])) { |
448 | i = rx->subend - s; |
449 | goto getrx; |
79072805 |
450 | } |
79072805 |
451 | } |
748a9306 |
452 | sv_setsv(sv,&sv_undef); |
79072805 |
453 | break; |
454 | case '.': |
455 | #ifndef lint |
a0d0e21e |
456 | if (GvIO(last_in_gv)) { |
188ea221 |
457 | sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv))); |
79072805 |
458 | } |
459 | #endif |
460 | break; |
461 | case '?': |
809a5acc |
462 | { |
463 | dTHR; |
464 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 |
465 | #ifdef COMPLEX_STATUS |
809a5acc |
466 | LvTARGOFF(sv) = statusvalue; |
467 | LvTARGLEN(sv) = statusvalue_vms; |
ff0cee69 |
468 | #endif |
809a5acc |
469 | } |
79072805 |
470 | break; |
471 | case '^': |
a0d0e21e |
472 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 |
473 | if (s) |
474 | sv_setpv(sv,s); |
475 | else { |
476 | sv_setpv(sv,GvENAME(defoutgv)); |
477 | sv_catpv(sv,"_TOP"); |
478 | } |
479 | break; |
480 | case '~': |
a0d0e21e |
481 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 |
482 | if (!s) |
483 | s = GvENAME(defoutgv); |
484 | sv_setpv(sv,s); |
485 | break; |
486 | #ifndef lint |
487 | case '=': |
188ea221 |
488 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 |
489 | break; |
490 | case '-': |
188ea221 |
491 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 |
492 | break; |
493 | case '%': |
188ea221 |
494 | sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv))); |
79072805 |
495 | break; |
496 | #endif |
497 | case ':': |
498 | break; |
499 | case '/': |
500 | break; |
501 | case '[': |
0f15f207 |
502 | WITH_THR(sv_setiv(sv, (IV)curcop->cop_arybase)); |
79072805 |
503 | break; |
504 | case '|': |
188ea221 |
505 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 |
506 | break; |
507 | case ',': |
508 | sv_setpvn(sv,ofs,ofslen); |
509 | break; |
510 | case '\\': |
511 | sv_setpvn(sv,ors,orslen); |
512 | break; |
513 | case '#': |
514 | sv_setpv(sv,ofmt); |
515 | break; |
516 | case '!': |
a5f75d66 |
517 | #ifdef VMS |
946ec16e |
518 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a |
519 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 |
520 | #else |
88e89b8a |
521 | { |
522 | int saveerrno = errno; |
946ec16e |
523 | sv_setnv(sv, (double)errno); |
88e89b8a |
524 | #ifdef OS2 |
525 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); |
526 | else |
a5f75d66 |
527 | #endif |
2304df62 |
528 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a |
529 | errno = saveerrno; |
530 | } |
531 | #endif |
946ec16e |
532 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 |
533 | break; |
534 | case '<': |
188ea221 |
535 | sv_setiv(sv, (IV)uid); |
79072805 |
536 | break; |
537 | case '>': |
188ea221 |
538 | sv_setiv(sv, (IV)euid); |
79072805 |
539 | break; |
540 | case '(': |
188ea221 |
541 | sv_setiv(sv, (IV)gid); |
fc36a67e |
542 | sv_setpvf(sv, "%Vd", (IV)gid); |
79072805 |
543 | goto add_groups; |
544 | case ')': |
188ea221 |
545 | sv_setiv(sv, (IV)egid); |
fc36a67e |
546 | sv_setpvf(sv, "%Vd", (IV)egid); |
79072805 |
547 | add_groups: |
79072805 |
548 | #ifdef HAS_GETGROUPS |
79072805 |
549 | { |
a0d0e21e |
550 | Groups_t gary[NGROUPS]; |
79072805 |
551 | i = getgroups(NGROUPS,gary); |
46fc3d4c |
552 | while (--i >= 0) |
fc36a67e |
553 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 |
554 | } |
555 | #endif |
29355cf7 |
556 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 |
557 | break; |
558 | case '*': |
559 | break; |
560 | case '0': |
561 | break; |
a863c7d1 |
562 | #ifdef USE_THREADS |
563 | case '@': |
38a03e6e |
564 | sv_setsv(sv, thr->errsv); |
a863c7d1 |
565 | break; |
566 | #endif /* USE_THREADS */ |
79072805 |
567 | } |
a0d0e21e |
568 | return 0; |
79072805 |
569 | } |
570 | |
571 | int |
8ac85365 |
572 | magic_getuvar(SV *sv, MAGIC *mg) |
79072805 |
573 | { |
574 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
575 | |
576 | if (uf && uf->uf_val) |
577 | (*uf->uf_val)(uf->uf_index, sv); |
578 | return 0; |
579 | } |
580 | |
581 | int |
8ac85365 |
582 | magic_setenv(SV *sv, MAGIC *mg) |
79072805 |
583 | { |
584 | register char *s; |
88e89b8a |
585 | char *ptr; |
5aabfad6 |
586 | STRLEN len, klen; |
a0d0e21e |
587 | I32 i; |
1e422769 |
588 | |
a0d0e21e |
589 | s = SvPV(sv,len); |
5aabfad6 |
590 | ptr = MgPV(mg,klen); |
88e89b8a |
591 | my_setenv(ptr, s); |
1e422769 |
592 | |
a0d0e21e |
593 | #ifdef DYNAMIC_ENV_FETCH |
594 | /* We just undefd an environment var. Is a replacement */ |
595 | /* waiting in the wings? */ |
596 | if (!len) { |
5aabfad6 |
597 | SV **valp; |
598 | if ((valp = hv_fetch(GvHVn(envgv), ptr, klen, FALSE))) |
599 | s = SvPV(*valp, len); |
a0d0e21e |
600 | } |
601 | #endif |
1e422769 |
602 | |
3e3baf6d |
603 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) |
79072805 |
604 | /* And you'll never guess what the dog had */ |
605 | /* in its mouth... */ |
463ee0b2 |
606 | if (tainting) { |
1e422769 |
607 | MgTAINTEDDIR_off(mg); |
608 | #ifdef VMS |
5aabfad6 |
609 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 |
610 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
611 | struct stat sbuf; |
612 | int i = 0, j = 0; |
613 | |
614 | do { /* DCL$PATH may be a search list */ |
615 | while (1) { /* as may dev portion of any element */ |
616 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { |
617 | if ( *(cp+1) == '.' || *(cp+1) == '-' || |
618 | cando_by_name(S_IWUSR,0,elt) ) { |
619 | MgTAINTEDDIR_on(mg); |
620 | return 0; |
621 | } |
622 | } |
623 | if ((cp = strchr(elt, ':')) != Nullch) |
624 | *cp = '\0'; |
625 | if (my_trnlnm(elt, eltbuf, j++)) |
626 | elt = eltbuf; |
627 | else |
628 | break; |
629 | } |
630 | j = 0; |
631 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); |
632 | } |
633 | #endif /* VMS */ |
5aabfad6 |
634 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e |
635 | char *strend = s + len; |
463ee0b2 |
636 | |
637 | while (s < strend) { |
96827780 |
638 | char tmpbuf[256]; |
1e422769 |
639 | struct stat st; |
96827780 |
640 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e |
641 | s, strend, ':', &i); |
463ee0b2 |
642 | s++; |
96827780 |
643 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
644 | || *tmpbuf != '/' |
645 | || (Stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 |
646 | MgTAINTEDDIR_on(mg); |
1e422769 |
647 | return 0; |
648 | } |
463ee0b2 |
649 | } |
79072805 |
650 | } |
651 | } |
3e3baf6d |
652 | #endif /* neither OS2 nor AMIGAOS nor WIN32 */ |
1e422769 |
653 | |
79072805 |
654 | return 0; |
655 | } |
656 | |
657 | int |
8ac85365 |
658 | magic_clearenv(SV *sv, MAGIC *mg) |
85e6fe83 |
659 | { |
5aabfad6 |
660 | my_setenv(MgPV(mg,na),Nullch); |
85e6fe83 |
661 | return 0; |
662 | } |
663 | |
88e89b8a |
664 | int |
8ac85365 |
665 | magic_set_all_env(SV *sv, MAGIC *mg) |
fb73857a |
666 | { |
667 | #if defined(VMS) |
668 | die("Can't make list assignment to %%ENV on this system"); |
669 | #else |
d58bf5aa |
670 | dTHR; |
fb73857a |
671 | if (localizing) { |
672 | HE* entry; |
673 | magic_clear_all_env(sv,mg); |
674 | hv_iterinit((HV*)sv); |
675 | while (entry = hv_iternext((HV*)sv)) { |
676 | I32 keylen; |
677 | my_setenv(hv_iterkey(entry, &keylen), |
678 | SvPV(hv_iterval((HV*)sv, entry), na)); |
679 | } |
680 | } |
681 | #endif |
682 | return 0; |
683 | } |
684 | |
685 | int |
8ac85365 |
686 | magic_clear_all_env(SV *sv, MAGIC *mg) |
66b1d557 |
687 | { |
3e3baf6d |
688 | #if defined(VMS) |
689 | die("Can't make list assignment to %%ENV on this system"); |
690 | #else |
691 | #ifdef WIN32 |
692 | char *envv = GetEnvironmentStrings(); |
693 | char *cur = envv; |
694 | STRLEN len; |
695 | while (*cur) { |
696 | char *end = strchr(cur,'='); |
697 | if (end && end != cur) { |
698 | *end = '\0'; |
699 | my_setenv(cur,Nullch); |
700 | *end = '='; |
701 | cur += strlen(end+1)+1; |
702 | } |
703 | else if ((len = strlen(cur))) |
704 | cur += len+1; |
705 | } |
706 | FreeEnvironmentStrings(envv); |
66b1d557 |
707 | #else |
708 | I32 i; |
709 | |
710 | if (environ == origenviron) |
711 | New(901, environ, 1, char*); |
712 | else |
713 | for (i = 0; environ[i]; i++) |
714 | Safefree(environ[i]); |
715 | environ[0] = Nullch; |
716 | |
66b1d557 |
717 | #endif |
3e3baf6d |
718 | #endif |
719 | return 0; |
66b1d557 |
720 | } |
721 | |
722 | int |
8ac85365 |
723 | magic_getsig(SV *sv, MAGIC *mg) |
88e89b8a |
724 | { |
725 | I32 i; |
726 | /* Are we fetching a signal entry? */ |
5aabfad6 |
727 | i = whichsig(MgPV(mg,na)); |
88e89b8a |
728 | if (i) { |
729 | if(psig_ptr[i]) |
730 | sv_setsv(sv,psig_ptr[i]); |
731 | else { |
ff68c719 |
732 | Sighandler_t sigstate = rsignal_state(i); |
733 | |
88e89b8a |
734 | /* cache state so we don't fetch it again */ |
ff68c719 |
735 | if(sigstate == SIG_IGN) |
88e89b8a |
736 | sv_setpv(sv,"IGNORE"); |
737 | else |
738 | sv_setsv(sv,&sv_undef); |
739 | psig_ptr[i] = SvREFCNT_inc(sv); |
740 | SvTEMP_off(sv); |
741 | } |
742 | } |
743 | return 0; |
744 | } |
745 | int |
8ac85365 |
746 | magic_clearsig(SV *sv, MAGIC *mg) |
88e89b8a |
747 | { |
748 | I32 i; |
749 | /* Are we clearing a signal entry? */ |
5aabfad6 |
750 | i = whichsig(MgPV(mg,na)); |
88e89b8a |
751 | if (i) { |
752 | if(psig_ptr[i]) { |
753 | SvREFCNT_dec(psig_ptr[i]); |
754 | psig_ptr[i]=0; |
755 | } |
756 | if(psig_name[i]) { |
757 | SvREFCNT_dec(psig_name[i]); |
758 | psig_name[i]=0; |
759 | } |
760 | } |
761 | return 0; |
762 | } |
3d37d572 |
763 | |
85e6fe83 |
764 | int |
8ac85365 |
765 | magic_setsig(SV *sv, MAGIC *mg) |
79072805 |
766 | { |
11343788 |
767 | dTHR; |
79072805 |
768 | register char *s; |
769 | I32 i; |
748a9306 |
770 | SV** svp; |
a0d0e21e |
771 | |
5aabfad6 |
772 | s = MgPV(mg,na); |
748a9306 |
773 | if (*s == '_') { |
774 | if (strEQ(s,"__DIE__")) |
775 | svp = &diehook; |
776 | else if (strEQ(s,"__WARN__")) |
777 | svp = &warnhook; |
778 | else if (strEQ(s,"__PARSE__")) |
779 | svp = &parsehook; |
780 | else |
781 | croak("No such hook: %s", s); |
782 | i = 0; |
4633a7c4 |
783 | if (*svp) { |
784 | SvREFCNT_dec(*svp); |
785 | *svp = 0; |
786 | } |
748a9306 |
787 | } |
788 | else { |
789 | i = whichsig(s); /* ...no, a brick */ |
790 | if (!i) { |
791 | if (dowarn || strEQ(s,"ALARM")) |
792 | warn("No such signal: SIG%s", s); |
793 | return 0; |
794 | } |
ff0cee69 |
795 | SvREFCNT_dec(psig_name[i]); |
796 | SvREFCNT_dec(psig_ptr[i]); |
88e89b8a |
797 | psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
798 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
ff0cee69 |
799 | psig_name[i] = newSVpv(s, strlen(s)); |
88e89b8a |
800 | SvREADONLY_on(psig_name[i]); |
748a9306 |
801 | } |
a0d0e21e |
802 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 |
803 | if (i) |
c23142e2 |
804 | (void)rsignal(i, sighandlerp); |
748a9306 |
805 | else |
806 | *svp = SvREFCNT_inc(sv); |
a0d0e21e |
807 | return 0; |
808 | } |
809 | s = SvPV_force(sv,na); |
748a9306 |
810 | if (strEQ(s,"IGNORE")) { |
811 | if (i) |
ff68c719 |
812 | (void)rsignal(i, SIG_IGN); |
748a9306 |
813 | else |
814 | *svp = 0; |
815 | } |
816 | else if (strEQ(s,"DEFAULT") || !*s) { |
817 | if (i) |
ff68c719 |
818 | (void)rsignal(i, SIG_DFL); |
748a9306 |
819 | else |
820 | *svp = 0; |
821 | } |
79072805 |
822 | else { |
5aabfad6 |
823 | /* |
824 | * We should warn if HINT_STRICT_REFS, but without |
825 | * access to a known hint bit in a known OP, we can't |
826 | * tell whether HINT_STRICT_REFS is in force or not. |
827 | */ |
46fc3d4c |
828 | if (!strchr(s,':') && !strchr(s,'\'')) |
829 | sv_setpv(sv, form("main::%s", s)); |
748a9306 |
830 | if (i) |
c23142e2 |
831 | (void)rsignal(i, sighandlerp); |
748a9306 |
832 | else |
833 | *svp = SvREFCNT_inc(sv); |
79072805 |
834 | } |
835 | return 0; |
836 | } |
837 | |
838 | int |
8ac85365 |
839 | magic_setisa(SV *sv, MAGIC *mg) |
79072805 |
840 | { |
463ee0b2 |
841 | sub_generation++; |
842 | return 0; |
843 | } |
844 | |
a0d0e21e |
845 | #ifdef OVERLOAD |
846 | |
463ee0b2 |
847 | int |
8ac85365 |
848 | magic_setamagic(SV *sv, MAGIC *mg) |
463ee0b2 |
849 | { |
a0d0e21e |
850 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
851 | amagic_generation++; |
463ee0b2 |
852 | |
a0d0e21e |
853 | return 0; |
854 | } |
855 | #endif /* OVERLOAD */ |
463ee0b2 |
856 | |
946ec16e |
857 | int |
8ac85365 |
858 | magic_setnkeys(SV *sv, MAGIC *mg) |
946ec16e |
859 | { |
860 | if (LvTARG(sv)) { |
861 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); |
862 | LvTARG(sv) = Nullsv; /* Don't allow a ref to reassign this. */ |
863 | } |
864 | return 0; |
865 | } |
866 | |
a0d0e21e |
867 | static int |
8ac85365 |
868 | magic_methpack(SV *sv, MAGIC *mg, char *meth) |
a0d0e21e |
869 | { |
870 | dSP; |
463ee0b2 |
871 | |
a0d0e21e |
872 | ENTER; |
873 | SAVETMPS; |
874 | PUSHMARK(sp); |
875 | EXTEND(sp, 2); |
876 | PUSHs(mg->mg_obj); |
88e89b8a |
877 | if (mg->mg_ptr) { |
878 | if (mg->mg_len >= 0) |
879 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
880 | else if (mg->mg_len == HEf_SVKEY) |
881 | PUSHs((SV*)mg->mg_ptr); |
882 | } |
a0d0e21e |
883 | else if (mg->mg_type == 'p') |
884 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
463ee0b2 |
885 | PUTBACK; |
886 | |
a0d0e21e |
887 | if (perl_call_method(meth, G_SCALAR)) |
888 | sv_setsv(sv, *stack_sp--); |
463ee0b2 |
889 | |
a0d0e21e |
890 | FREETMPS; |
891 | LEAVE; |
892 | return 0; |
893 | } |
463ee0b2 |
894 | |
a0d0e21e |
895 | int |
8ac85365 |
896 | magic_getpack(SV *sv, MAGIC *mg) |
a0d0e21e |
897 | { |
898 | magic_methpack(sv,mg,"FETCH"); |
899 | if (mg->mg_ptr) |
900 | mg->mg_flags |= MGf_GSKIP; |
463ee0b2 |
901 | return 0; |
902 | } |
903 | |
904 | int |
8ac85365 |
905 | magic_setpack(SV *sv, MAGIC *mg) |
463ee0b2 |
906 | { |
463ee0b2 |
907 | dSP; |
463ee0b2 |
908 | |
a0d0e21e |
909 | PUSHMARK(sp); |
910 | EXTEND(sp, 3); |
911 | PUSHs(mg->mg_obj); |
88e89b8a |
912 | if (mg->mg_ptr) { |
913 | if (mg->mg_len >= 0) |
914 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
915 | else if (mg->mg_len == HEf_SVKEY) |
916 | PUSHs((SV*)mg->mg_ptr); |
917 | } |
a0d0e21e |
918 | else if (mg->mg_type == 'p') |
919 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
463ee0b2 |
920 | PUSHs(sv); |
921 | PUTBACK; |
922 | |
a0d0e21e |
923 | perl_call_method("STORE", G_SCALAR|G_DISCARD); |
463ee0b2 |
924 | |
925 | return 0; |
926 | } |
927 | |
928 | int |
8ac85365 |
929 | magic_clearpack(SV *sv, MAGIC *mg) |
463ee0b2 |
930 | { |
a0d0e21e |
931 | return magic_methpack(sv,mg,"DELETE"); |
932 | } |
463ee0b2 |
933 | |
8ac85365 |
934 | int magic_wipepack(SV *sv, MAGIC *mg) |
a0d0e21e |
935 | { |
936 | dSP; |
463ee0b2 |
937 | |
a0d0e21e |
938 | PUSHMARK(sp); |
939 | XPUSHs(mg->mg_obj); |
463ee0b2 |
940 | PUTBACK; |
463ee0b2 |
941 | |
a0d0e21e |
942 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
463ee0b2 |
943 | |
944 | return 0; |
945 | } |
946 | |
947 | int |
8ac85365 |
948 | magic_nextpack(SV *sv, MAGIC *mg, SV *key) |
463ee0b2 |
949 | { |
463ee0b2 |
950 | dSP; |
a0d0e21e |
951 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 |
952 | |
953 | ENTER; |
a0d0e21e |
954 | SAVETMPS; |
955 | PUSHMARK(sp); |
956 | EXTEND(sp, 2); |
957 | PUSHs(mg->mg_obj); |
463ee0b2 |
958 | if (SvOK(key)) |
959 | PUSHs(key); |
960 | PUTBACK; |
961 | |
a0d0e21e |
962 | if (perl_call_method(meth, G_SCALAR)) |
963 | sv_setsv(key, *stack_sp--); |
463ee0b2 |
964 | |
a0d0e21e |
965 | FREETMPS; |
966 | LEAVE; |
79072805 |
967 | return 0; |
968 | } |
969 | |
970 | int |
8ac85365 |
971 | magic_existspack(SV *sv, MAGIC *mg) |
a0d0e21e |
972 | { |
973 | return magic_methpack(sv,mg,"EXISTS"); |
974 | } |
975 | |
976 | int |
8ac85365 |
977 | magic_setdbline(SV *sv, MAGIC *mg) |
79072805 |
978 | { |
11343788 |
979 | dTHR; |
79072805 |
980 | OP *o; |
981 | I32 i; |
982 | GV* gv; |
983 | SV** svp; |
984 | |
985 | gv = DBline; |
986 | i = SvTRUE(sv); |
188ea221 |
987 | svp = av_fetch(GvAV(gv), |
5aabfad6 |
988 | atoi(MgPV(mg,na)), FALSE); |
8990e307 |
989 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 |
990 | o->op_private = i; |
79072805 |
991 | else |
992 | warn("Can't break at that line\n"); |
993 | return 0; |
994 | } |
995 | |
996 | int |
8ac85365 |
997 | magic_getarylen(SV *sv, MAGIC *mg) |
79072805 |
998 | { |
0f15f207 |
999 | dTHR; |
a0d0e21e |
1000 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 |
1001 | return 0; |
1002 | } |
1003 | |
1004 | int |
8ac85365 |
1005 | magic_setarylen(SV *sv, MAGIC *mg) |
79072805 |
1006 | { |
0f15f207 |
1007 | dTHR; |
a0d0e21e |
1008 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
1009 | return 0; |
1010 | } |
1011 | |
1012 | int |
8ac85365 |
1013 | magic_getpos(SV *sv, MAGIC *mg) |
a0d0e21e |
1014 | { |
1015 | SV* lsv = LvTARG(sv); |
1016 | |
1017 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
1018 | mg = mg_find(lsv, 'g'); |
1019 | if (mg && mg->mg_len >= 0) { |
0f15f207 |
1020 | dTHR; |
a0d0e21e |
1021 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); |
1022 | return 0; |
1023 | } |
1024 | } |
1025 | (void)SvOK_off(sv); |
1026 | return 0; |
1027 | } |
1028 | |
1029 | int |
8ac85365 |
1030 | magic_setpos(SV *sv, MAGIC *mg) |
a0d0e21e |
1031 | { |
1032 | SV* lsv = LvTARG(sv); |
1033 | SSize_t pos; |
1034 | STRLEN len; |
1035 | |
1036 | mg = 0; |
1037 | |
1038 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
1039 | mg = mg_find(lsv, 'g'); |
1040 | if (!mg) { |
1041 | if (!SvOK(sv)) |
1042 | return 0; |
1043 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); |
1044 | mg = mg_find(lsv, 'g'); |
1045 | } |
1046 | else if (!SvOK(sv)) { |
1047 | mg->mg_len = -1; |
1048 | return 0; |
1049 | } |
1050 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); |
1051 | |
0f15f207 |
1052 | WITH_THR(pos = SvIV(sv) - curcop->cop_arybase); |
a0d0e21e |
1053 | if (pos < 0) { |
1054 | pos += len; |
1055 | if (pos < 0) |
1056 | pos = 0; |
1057 | } |
1058 | else if (pos > len) |
1059 | pos = len; |
1060 | mg->mg_len = pos; |
71be2cbc |
1061 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e |
1062 | |
79072805 |
1063 | return 0; |
1064 | } |
1065 | |
1066 | int |
8ac85365 |
1067 | magic_getglob(SV *sv, MAGIC *mg) |
79072805 |
1068 | { |
8646b087 |
1069 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1070 | SvFAKE_off(sv); |
946ec16e |
1071 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 |
1072 | SvFAKE_on(sv); |
1073 | } |
1074 | else |
946ec16e |
1075 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 |
1076 | return 0; |
1077 | } |
1078 | |
1079 | int |
8ac85365 |
1080 | magic_setglob(SV *sv, MAGIC *mg) |
79072805 |
1081 | { |
1082 | register char *s; |
1083 | GV* gv; |
1084 | |
1085 | if (!SvOK(sv)) |
1086 | return 0; |
463ee0b2 |
1087 | s = SvPV(sv, na); |
79072805 |
1088 | if (*s == '*' && s[1]) |
1089 | s++; |
85e6fe83 |
1090 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 |
1091 | if (sv == (SV*)gv) |
1092 | return 0; |
1093 | if (GvGP(sv)) |
88e89b8a |
1094 | gp_free((GV*)sv); |
79072805 |
1095 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 |
1096 | return 0; |
1097 | } |
1098 | |
1099 | int |
8ac85365 |
1100 | magic_setsubstr(SV *sv, MAGIC *mg) |
79072805 |
1101 | { |
8990e307 |
1102 | STRLEN len; |
1103 | char *tmps = SvPV(sv,len); |
1104 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); |
79072805 |
1105 | return 0; |
1106 | } |
1107 | |
1108 | int |
8ac85365 |
1109 | magic_gettaint(SV *sv, MAGIC *mg) |
463ee0b2 |
1110 | { |
a863c7d1 |
1111 | dTHR; |
bbce6d69 |
1112 | TAINT_IF((mg->mg_len & 1) || |
1113 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ |
463ee0b2 |
1114 | return 0; |
1115 | } |
1116 | |
1117 | int |
8ac85365 |
1118 | magic_settaint(SV *sv, MAGIC *mg) |
463ee0b2 |
1119 | { |
11343788 |
1120 | dTHR; |
748a9306 |
1121 | if (localizing) { |
1122 | if (localizing == 1) |
1123 | mg->mg_len <<= 1; |
1124 | else |
1125 | mg->mg_len >>= 1; |
a0d0e21e |
1126 | } |
748a9306 |
1127 | else if (tainted) |
1128 | mg->mg_len |= 1; |
1129 | else |
1130 | mg->mg_len &= ~1; |
463ee0b2 |
1131 | return 0; |
1132 | } |
1133 | |
1134 | int |
8ac85365 |
1135 | magic_setvec(SV *sv, MAGIC *mg) |
79072805 |
1136 | { |
1137 | do_vecset(sv); /* XXX slurp this routine */ |
1138 | return 0; |
1139 | } |
1140 | |
1141 | int |
8ac85365 |
1142 | magic_getdefelem(SV *sv, MAGIC *mg) |
5f05dabc |
1143 | { |
71be2cbc |
1144 | SV *targ = Nullsv; |
5f05dabc |
1145 | if (LvTARGLEN(sv)) { |
68dc0745 |
1146 | if (mg->mg_obj) { |
1147 | HV* hv = (HV*)LvTARG(sv); |
1148 | HE* he = hv_fetch_ent(hv, mg->mg_obj, FALSE, 0); |
1149 | if (he) |
1150 | targ = HeVAL(he); |
1151 | } |
1152 | else { |
1153 | AV* av = (AV*)LvTARG(sv); |
1154 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1155 | targ = AvARRAY(av)[LvTARGOFF(sv)]; |
1156 | } |
1157 | if (targ && targ != &sv_undef) { |
e858de61 |
1158 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 |
1159 | /* somebody else defined it for us */ |
1160 | SvREFCNT_dec(LvTARG(sv)); |
1161 | LvTARG(sv) = SvREFCNT_inc(targ); |
1162 | LvTARGLEN(sv) = 0; |
1163 | SvREFCNT_dec(mg->mg_obj); |
1164 | mg->mg_obj = Nullsv; |
1165 | mg->mg_flags &= ~MGf_REFCOUNTED; |
1166 | } |
5f05dabc |
1167 | } |
71be2cbc |
1168 | else |
1169 | targ = LvTARG(sv); |
1170 | sv_setsv(sv, targ ? targ : &sv_undef); |
1171 | return 0; |
1172 | } |
1173 | |
1174 | int |
8ac85365 |
1175 | magic_setdefelem(SV *sv, MAGIC *mg) |
71be2cbc |
1176 | { |
1177 | if (LvTARGLEN(sv)) |
68dc0745 |
1178 | vivify_defelem(sv); |
1179 | if (LvTARG(sv)) { |
5f05dabc |
1180 | sv_setsv(LvTARG(sv), sv); |
68dc0745 |
1181 | SvSETMAGIC(LvTARG(sv)); |
1182 | } |
5f05dabc |
1183 | return 0; |
1184 | } |
1185 | |
1186 | int |
8ac85365 |
1187 | magic_freedefelem(SV *sv, MAGIC *mg) |
5f05dabc |
1188 | { |
1189 | SvREFCNT_dec(LvTARG(sv)); |
71be2cbc |
1190 | return 0; |
1191 | } |
1192 | |
1193 | void |
8ac85365 |
1194 | vivify_defelem(SV *sv) |
71be2cbc |
1195 | { |
e858de61 |
1196 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
68dc0745 |
1197 | MAGIC* mg; |
1198 | SV* value; |
71be2cbc |
1199 | |
68dc0745 |
1200 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc |
1201 | return; |
68dc0745 |
1202 | if (mg->mg_obj) { |
1203 | HV* hv = (HV*)LvTARG(sv); |
1204 | HE* he = hv_fetch_ent(hv, mg->mg_obj, TRUE, 0); |
1205 | if (!he || (value = HeVAL(he)) == &sv_undef) |
1206 | croak(no_helem, SvPV(mg->mg_obj, na)); |
71be2cbc |
1207 | } |
68dc0745 |
1208 | else { |
1209 | AV* av = (AV*)LvTARG(sv); |
5aabfad6 |
1210 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 |
1211 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1212 | else { |
1213 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); |
1214 | if (!svp || (value = *svp) == &sv_undef) |
1215 | croak(no_aelem, (I32)LvTARGOFF(sv)); |
1216 | } |
1217 | } |
3e3baf6d |
1218 | (void)SvREFCNT_inc(value); |
68dc0745 |
1219 | SvREFCNT_dec(LvTARG(sv)); |
1220 | LvTARG(sv) = value; |
71be2cbc |
1221 | LvTARGLEN(sv) = 0; |
68dc0745 |
1222 | SvREFCNT_dec(mg->mg_obj); |
1223 | mg->mg_obj = Nullsv; |
1224 | mg->mg_flags &= ~MGf_REFCOUNTED; |
5f05dabc |
1225 | } |
1226 | |
1227 | int |
8ac85365 |
1228 | magic_setmglob(SV *sv, MAGIC *mg) |
93a17b20 |
1229 | { |
a0d0e21e |
1230 | mg->mg_len = -1; |
c6496cc7 |
1231 | SvSCREAM_off(sv); |
93a17b20 |
1232 | return 0; |
1233 | } |
1234 | |
1235 | int |
8ac85365 |
1236 | magic_setbm(SV *sv, MAGIC *mg) |
79072805 |
1237 | { |
463ee0b2 |
1238 | sv_unmagic(sv, 'B'); |
79072805 |
1239 | SvVALID_off(sv); |
1240 | return 0; |
1241 | } |
1242 | |
1243 | int |
8ac85365 |
1244 | magic_setfm(SV *sv, MAGIC *mg) |
55497cff |
1245 | { |
1246 | sv_unmagic(sv, 'f'); |
1247 | SvCOMPILED_off(sv); |
1248 | return 0; |
1249 | } |
1250 | |
1251 | int |
8ac85365 |
1252 | magic_setuvar(SV *sv, MAGIC *mg) |
79072805 |
1253 | { |
1254 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
1255 | |
1256 | if (uf && uf->uf_set) |
1257 | (*uf->uf_set)(uf->uf_index, sv); |
1258 | return 0; |
1259 | } |
1260 | |
7a4c00b4 |
1261 | #ifdef USE_LOCALE_COLLATE |
79072805 |
1262 | int |
8ac85365 |
1263 | magic_setcollxfrm(SV *sv, MAGIC *mg) |
bbce6d69 |
1264 | { |
1265 | /* |
1266 | * René Descartes said "I think not." |
1267 | * and vanished with a faint plop. |
1268 | */ |
7a4c00b4 |
1269 | if (mg->mg_ptr) { |
1270 | Safefree(mg->mg_ptr); |
1271 | mg->mg_ptr = NULL; |
1272 | mg->mg_len = -1; |
1273 | } |
bbce6d69 |
1274 | return 0; |
1275 | } |
7a4c00b4 |
1276 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
1277 | |
1278 | int |
8ac85365 |
1279 | magic_set(SV *sv, MAGIC *mg) |
79072805 |
1280 | { |
11343788 |
1281 | dTHR; |
79072805 |
1282 | register char *s; |
1283 | I32 i; |
8990e307 |
1284 | STRLEN len; |
79072805 |
1285 | switch (*mg->mg_ptr) { |
748a9306 |
1286 | case '\001': /* ^A */ |
1287 | sv_setsv(bodytarget, sv); |
1288 | break; |
79072805 |
1289 | case '\004': /* ^D */ |
8990e307 |
1290 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 |
1291 | DEBUG_x(dump_all()); |
1292 | break; |
28f23441 |
1293 | case '\005': /* ^E */ |
1294 | #ifdef VMS |
1295 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1296 | #else |
f86702cc |
1297 | /* will anyone ever use this? */ |
1298 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); |
28f23441 |
1299 | #endif |
1300 | break; |
79072805 |
1301 | case '\006': /* ^F */ |
463ee0b2 |
1302 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1303 | break; |
a0d0e21e |
1304 | case '\010': /* ^H */ |
1305 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1306 | break; |
79072805 |
1307 | case '\t': /* ^I */ |
1308 | if (inplace) |
1309 | Safefree(inplace); |
1310 | if (SvOK(sv)) |
a0d0e21e |
1311 | inplace = savepv(SvPV(sv,na)); |
79072805 |
1312 | else |
1313 | inplace = Nullch; |
1314 | break; |
28f23441 |
1315 | case '\017': /* ^O */ |
1316 | if (osname) |
1317 | Safefree(osname); |
1318 | if (SvOK(sv)) |
1319 | osname = savepv(SvPV(sv,na)); |
1320 | else |
1321 | osname = Nullch; |
1322 | break; |
79072805 |
1323 | case '\020': /* ^P */ |
84902520 |
1324 | perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1325 | break; |
1326 | case '\024': /* ^T */ |
88e89b8a |
1327 | #ifdef BIG_TIME |
1328 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
1329 | #else |
85e6fe83 |
1330 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a |
1331 | #endif |
79072805 |
1332 | break; |
1333 | case '\027': /* ^W */ |
463ee0b2 |
1334 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1335 | break; |
1336 | case '.': |
748a9306 |
1337 | if (localizing) { |
1338 | if (localizing == 1) |
1339 | save_sptr((SV**)&last_in_gv); |
1340 | } |
88e89b8a |
1341 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e |
1342 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 |
1343 | break; |
1344 | case '^': |
a0d0e21e |
1345 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1346 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); |
1347 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1348 | break; |
1349 | case '~': |
a0d0e21e |
1350 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1351 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); |
1352 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1353 | break; |
1354 | case '=': |
a0d0e21e |
1355 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1356 | break; |
1357 | case '-': |
a0d0e21e |
1358 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1359 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) |
1360 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; |
79072805 |
1361 | break; |
1362 | case '%': |
a0d0e21e |
1363 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1364 | break; |
1365 | case '|': |
4b65379b |
1366 | { |
1367 | IO *io = GvIOp(defoutgv); |
1368 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1369 | IoFLAGS(io) &= ~IOf_FLUSH; |
1370 | else { |
1371 | if (!(IoFLAGS(io) & IOf_FLUSH)) { |
1372 | PerlIO *ofp = IoOFP(io); |
1373 | if (ofp) |
1374 | (void)PerlIO_flush(ofp); |
1375 | IoFLAGS(io) |= IOf_FLUSH; |
1376 | } |
1377 | } |
79072805 |
1378 | } |
1379 | break; |
1380 | case '*': |
463ee0b2 |
1381 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1382 | multiline = (i != 0); |
1383 | break; |
1384 | case '/': |
c07a80fd |
1385 | SvREFCNT_dec(nrs); |
1386 | nrs = newSVsv(sv); |
1387 | SvREFCNT_dec(rs); |
1388 | rs = SvREFCNT_inc(nrs); |
79072805 |
1389 | break; |
1390 | case '\\': |
1391 | if (ors) |
1392 | Safefree(ors); |
e3c19b7b |
1393 | if (SvOK(sv) || SvGMAGICAL(sv)) |
1394 | ors = savepv(SvPV(sv,orslen)); |
1395 | else { |
1396 | ors = Nullch; |
1397 | orslen = 0; |
1398 | } |
79072805 |
1399 | break; |
1400 | case ',': |
1401 | if (ofs) |
1402 | Safefree(ofs); |
a0d0e21e |
1403 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 |
1404 | break; |
1405 | case '#': |
1406 | if (ofmt) |
1407 | Safefree(ofmt); |
a0d0e21e |
1408 | ofmt = savepv(SvPV(sv,na)); |
79072805 |
1409 | break; |
1410 | case '[': |
a0d0e21e |
1411 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1412 | break; |
1413 | case '?': |
ff0cee69 |
1414 | #ifdef COMPLEX_STATUS |
1415 | if (localizing == 2) { |
1416 | statusvalue = LvTARGOFF(sv); |
1417 | statusvalue_vms = LvTARGLEN(sv); |
1418 | } |
1419 | else |
1420 | #endif |
1421 | #ifdef VMSISH_STATUS |
1422 | if (VMSISH_STATUS) |
1423 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); |
1424 | else |
1425 | #endif |
1426 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1427 | break; |
1428 | case '!': |
f86702cc |
1429 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), |
1430 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 |
1431 | break; |
1432 | case '<': |
463ee0b2 |
1433 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1434 | if (delaymagic) { |
1435 | delaymagic |= DM_RUID; |
1436 | break; /* don't do magic till later */ |
1437 | } |
1438 | #ifdef HAS_SETRUID |
85e6fe83 |
1439 | (void)setruid((Uid_t)uid); |
79072805 |
1440 | #else |
1441 | #ifdef HAS_SETREUID |
85e6fe83 |
1442 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 |
1443 | #else |
85e6fe83 |
1444 | #ifdef HAS_SETRESUID |
1445 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); |
79072805 |
1446 | #else |
1447 | if (uid == euid) /* special case $< = $> */ |
1448 | (void)setuid(uid); |
a0d0e21e |
1449 | else { |
1450 | uid = (I32)getuid(); |
463ee0b2 |
1451 | croak("setruid() not implemented"); |
a0d0e21e |
1452 | } |
79072805 |
1453 | #endif |
1454 | #endif |
85e6fe83 |
1455 | #endif |
748a9306 |
1456 | uid = (I32)getuid(); |
4633a7c4 |
1457 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1458 | break; |
1459 | case '>': |
463ee0b2 |
1460 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1461 | if (delaymagic) { |
1462 | delaymagic |= DM_EUID; |
1463 | break; /* don't do magic till later */ |
1464 | } |
1465 | #ifdef HAS_SETEUID |
85e6fe83 |
1466 | (void)seteuid((Uid_t)euid); |
79072805 |
1467 | #else |
1468 | #ifdef HAS_SETREUID |
85e6fe83 |
1469 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1470 | #else |
1471 | #ifdef HAS_SETRESUID |
1472 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); |
79072805 |
1473 | #else |
1474 | if (euid == uid) /* special case $> = $< */ |
1475 | setuid(euid); |
a0d0e21e |
1476 | else { |
1477 | euid = (I32)geteuid(); |
463ee0b2 |
1478 | croak("seteuid() not implemented"); |
a0d0e21e |
1479 | } |
79072805 |
1480 | #endif |
1481 | #endif |
85e6fe83 |
1482 | #endif |
79072805 |
1483 | euid = (I32)geteuid(); |
4633a7c4 |
1484 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1485 | break; |
1486 | case '(': |
463ee0b2 |
1487 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1488 | if (delaymagic) { |
1489 | delaymagic |= DM_RGID; |
1490 | break; /* don't do magic till later */ |
1491 | } |
1492 | #ifdef HAS_SETRGID |
85e6fe83 |
1493 | (void)setrgid((Gid_t)gid); |
79072805 |
1494 | #else |
1495 | #ifdef HAS_SETREGID |
85e6fe83 |
1496 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1497 | #else |
1498 | #ifdef HAS_SETRESGID |
1499 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); |
79072805 |
1500 | #else |
1501 | if (gid == egid) /* special case $( = $) */ |
1502 | (void)setgid(gid); |
748a9306 |
1503 | else { |
1504 | gid = (I32)getgid(); |
463ee0b2 |
1505 | croak("setrgid() not implemented"); |
748a9306 |
1506 | } |
79072805 |
1507 | #endif |
1508 | #endif |
85e6fe83 |
1509 | #endif |
79072805 |
1510 | gid = (I32)getgid(); |
4633a7c4 |
1511 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1512 | break; |
1513 | case ')': |
5cd24f17 |
1514 | #ifdef HAS_SETGROUPS |
1515 | { |
1516 | char *p = SvPV(sv, na); |
1517 | Groups_t gary[NGROUPS]; |
1518 | |
1519 | SET_NUMERIC_STANDARD(); |
1520 | while (isSPACE(*p)) |
1521 | ++p; |
1522 | egid = I_V(atof(p)); |
1523 | for (i = 0; i < NGROUPS; ++i) { |
1524 | while (*p && !isSPACE(*p)) |
1525 | ++p; |
1526 | while (isSPACE(*p)) |
1527 | ++p; |
1528 | if (!*p) |
1529 | break; |
1530 | gary[i] = I_V(atof(p)); |
1531 | } |
8cc95fdb |
1532 | if (i) |
1533 | (void)setgroups(i, gary); |
5cd24f17 |
1534 | } |
1535 | #else /* HAS_SETGROUPS */ |
463ee0b2 |
1536 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 |
1537 | #endif /* HAS_SETGROUPS */ |
79072805 |
1538 | if (delaymagic) { |
1539 | delaymagic |= DM_EGID; |
1540 | break; /* don't do magic till later */ |
1541 | } |
1542 | #ifdef HAS_SETEGID |
85e6fe83 |
1543 | (void)setegid((Gid_t)egid); |
79072805 |
1544 | #else |
1545 | #ifdef HAS_SETREGID |
85e6fe83 |
1546 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1547 | #else |
1548 | #ifdef HAS_SETRESGID |
1549 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); |
79072805 |
1550 | #else |
1551 | if (egid == gid) /* special case $) = $( */ |
1552 | (void)setgid(egid); |
748a9306 |
1553 | else { |
1554 | egid = (I32)getegid(); |
463ee0b2 |
1555 | croak("setegid() not implemented"); |
748a9306 |
1556 | } |
79072805 |
1557 | #endif |
1558 | #endif |
85e6fe83 |
1559 | #endif |
79072805 |
1560 | egid = (I32)getegid(); |
4633a7c4 |
1561 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1562 | break; |
1563 | case ':': |
a0d0e21e |
1564 | chopset = SvPV_force(sv,na); |
79072805 |
1565 | break; |
1566 | case '0': |
1567 | if (!origalen) { |
1568 | s = origargv[0]; |
1569 | s += strlen(s); |
1570 | /* See if all the arguments are contiguous in memory */ |
1571 | for (i = 1; i < origargc; i++) { |
fb73857a |
1572 | if (origargv[i] == s + 1 |
1573 | #ifdef OS2 |
1574 | || origargv[i] == s + 2 |
1575 | #endif |
1576 | ) |
79072805 |
1577 | s += strlen(++s); /* this one is ok too */ |
fb73857a |
1578 | else |
1579 | break; |
79072805 |
1580 | } |
bbce6d69 |
1581 | /* can grab env area too? */ |
fb73857a |
1582 | if (origenviron && (origenviron[0] == s + 1 |
1583 | #ifdef OS2 |
1584 | || (origenviron[0] == s + 9 && (s += 8)) |
1585 | #endif |
1586 | )) { |
66b1d557 |
1587 | my_setenv("NoNe SuCh", Nullch); |
79072805 |
1588 | /* force copy of environment */ |
1589 | for (i = 0; origenviron[i]; i++) |
1590 | if (origenviron[i] == s + 1) |
1591 | s += strlen(++s); |
fb73857a |
1592 | else |
1593 | break; |
79072805 |
1594 | } |
1595 | origalen = s - origargv[0]; |
1596 | } |
a0d0e21e |
1597 | s = SvPV_force(sv,len); |
8990e307 |
1598 | i = len; |
79072805 |
1599 | if (i >= origalen) { |
1600 | i = origalen; |
fb73857a |
1601 | /* don't allow system to limit $0 seen by script */ |
1602 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ |
79072805 |
1603 | Copy(s, origargv[0], i, char); |
fb73857a |
1604 | s = origargv[0]+i; |
1605 | *s = '\0'; |
79072805 |
1606 | } |
1607 | else { |
1608 | Copy(s, origargv[0], i, char); |
1609 | s = origargv[0]+i; |
1610 | *s++ = '\0'; |
1611 | while (++i < origalen) |
8990e307 |
1612 | *s++ = ' '; |
1613 | s = origargv[0]+i; |
ed6116ce |
1614 | for (i = 1; i < origargc; i++) |
8990e307 |
1615 | origargv[i] = Nullch; |
79072805 |
1616 | } |
1617 | break; |
a863c7d1 |
1618 | #ifdef USE_THREADS |
1619 | case '@': |
38a03e6e |
1620 | sv_setsv(thr->errsv, sv); |
a863c7d1 |
1621 | break; |
1622 | #endif /* USE_THREADS */ |
79072805 |
1623 | } |
1624 | return 0; |
1625 | } |
1626 | |
f93b4edd |
1627 | #ifdef USE_THREADS |
1628 | int |
8ac85365 |
1629 | magic_mutexfree(SV *sv, MAGIC *mg) |
f93b4edd |
1630 | { |
1631 | dTHR; |
bc1f4c86 |
1632 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
1633 | (unsigned long)thr, (unsigned long)sv);) |
f93b4edd |
1634 | if (MgOWNER(mg)) |
1635 | croak("panic: magic_mutexfree"); |
1636 | MUTEX_DESTROY(MgMUTEXP(mg)); |
1637 | COND_DESTROY(MgCONDP(mg)); |
e55aaa0e |
1638 | SvREFCNT_dec(sv); |
f93b4edd |
1639 | return 0; |
1640 | } |
1641 | #endif /* USE_THREADS */ |
1642 | |
79072805 |
1643 | I32 |
8ac85365 |
1644 | whichsig(char *sig) |
79072805 |
1645 | { |
1646 | register char **sigv; |
1647 | |
1648 | for (sigv = sig_name+1; *sigv; sigv++) |
1649 | if (strEQ(sig,*sigv)) |
8e07c86e |
1650 | return sig_num[sigv - sig_name]; |
79072805 |
1651 | #ifdef SIGCLD |
1652 | if (strEQ(sig,"CHLD")) |
1653 | return SIGCLD; |
1654 | #endif |
1655 | #ifdef SIGCHLD |
1656 | if (strEQ(sig,"CLD")) |
1657 | return SIGCHLD; |
1658 | #endif |
1659 | return 0; |
1660 | } |
1661 | |
84902520 |
1662 | static SV* sig_sv; |
1663 | |
1664 | static void |
8ac85365 |
1665 | unwind_handler_stack(void *p) |
84902520 |
1666 | { |
ff26ac79 |
1667 | dTHR; |
84902520 |
1668 | U32 flags = *(U32*)p; |
1669 | |
1670 | if (flags & 1) |
1671 | savestack_ix -= 5; /* Unprotect save in progress. */ |
1672 | /* cxstack_ix-- Not needed, die already unwound it. */ |
1673 | if (flags & 64) |
1674 | SvREFCNT_dec(sig_sv); |
1675 | } |
1676 | |
ecfc5424 |
1677 | Signal_t |
8ac85365 |
1678 | sighandler(int sig) |
79072805 |
1679 | { |
1680 | dSP; |
1681 | GV *gv; |
a0d0e21e |
1682 | HV *st; |
84902520 |
1683 | SV *sv, *tSv = Sv; |
79072805 |
1684 | CV *cv; |
79072805 |
1685 | AV *oldstack; |
84902520 |
1686 | OP *myop = op; |
1687 | U32 flags = 0; |
1688 | I32 o_save_i = savestack_ix, type; |
c09156bb |
1689 | PERL_CONTEXT *cx; |
84902520 |
1690 | XPV *tXpv = Xpv; |
1691 | |
1692 | if (savestack_ix + 15 <= savestack_max) |
1693 | flags |= 1; |
1694 | if (cxstack_ix < cxstack_max - 2) |
1695 | flags |= 2; |
1696 | if (markstack_ptr < markstack_max - 2) |
1697 | flags |= 4; |
1698 | if (retstack_ix < retstack_max - 2) |
1699 | flags |= 8; |
1700 | if (scopestack_ix < scopestack_max - 3) |
1701 | flags |= 16; |
1702 | |
1703 | if (flags & 2) { /* POPBLOCK may decrease cxstack too early. */ |
1704 | cxstack_ix++; /* Protect from overwrite. */ |
1705 | cx = &cxstack[cxstack_ix]; |
1706 | type = cx->cx_type; /* Can be during partial write. */ |
1707 | cx->cx_type = CXt_NULL; /* Make it safe for unwind. */ |
1708 | } |
ff0cee69 |
1709 | if (!psig_ptr[sig]) |
1710 | die("Signal SIG%s received, but no signal handler set.\n", |
1711 | sig_name[sig]); |
1712 | |
84902520 |
1713 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
1714 | infinity, so we fix 4 (in fact 5): */ |
1715 | if (flags & 1) { |
1716 | savestack_ix += 5; /* Protect save in progress. */ |
1717 | o_save_i = savestack_ix; |
1718 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); |
1719 | } |
1720 | if (flags & 4) |
1721 | markstack_ptr++; /* Protect mark. */ |
1722 | if (flags & 8) { |
1723 | retstack_ix++; |
1724 | retstack[retstack_ix] = NULL; |
1725 | } |
1726 | if (flags & 16) |
1727 | scopestack_ix += 1; |
1728 | /* sv_2cv is too complicated, try a simpler variant first: */ |
1729 | if (!SvROK(psig_ptr[sig]) || !(cv = (CV*)SvRV(psig_ptr[sig])) |
1730 | || SvTYPE(cv) != SVt_PVCV) |
1731 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); |
1732 | |
a0d0e21e |
1733 | if (!cv || !CvROOT(cv)) { |
79072805 |
1734 | if (dowarn) |
1735 | warn("SIG%s handler \"%s\" not defined.\n", |
88e89b8a |
1736 | sig_name[sig], GvENAME(gv) ); |
79072805 |
1737 | return; |
1738 | } |
1739 | |
88e89b8a |
1740 | oldstack = curstack; |
1741 | if (curstack != signalstack) |
a0d0e21e |
1742 | AvFILL(signalstack) = 0; |
88e89b8a |
1743 | SWITCHSTACK(curstack, signalstack); |
79072805 |
1744 | |
84902520 |
1745 | if(psig_name[sig]) { |
88e89b8a |
1746 | sv = SvREFCNT_inc(psig_name[sig]); |
84902520 |
1747 | flags |= 64; |
1748 | sig_sv = sv; |
1749 | } else { |
ff0cee69 |
1750 | sv = sv_newmortal(); |
1751 | sv_setpv(sv,sig_name[sig]); |
88e89b8a |
1752 | } |
a0d0e21e |
1753 | PUSHMARK(sp); |
79072805 |
1754 | PUSHs(sv); |
79072805 |
1755 | PUTBACK; |
a0d0e21e |
1756 | |
1757 | perl_call_sv((SV*)cv, G_DISCARD); |
79072805 |
1758 | |
1759 | SWITCHSTACK(signalstack, oldstack); |
84902520 |
1760 | if (flags & 1) |
1761 | savestack_ix -= 8; /* Unprotect save in progress. */ |
1762 | if (flags & 2) { |
1763 | cxstack[cxstack_ix].cx_type = type; |
1764 | cxstack_ix -= 1; |
1765 | } |
1766 | if (flags & 4) |
1767 | markstack_ptr--; |
1768 | if (flags & 8) |
1769 | retstack_ix--; |
1770 | if (flags & 16) |
1771 | scopestack_ix -= 1; |
1772 | if (flags & 64) |
1773 | SvREFCNT_dec(sv); |
1774 | op = myop; /* Apparently not needed... */ |
1775 | |
1776 | Sv = tSv; /* Restore global temporaries. */ |
1777 | Xpv = tXpv; |
79072805 |
1778 | return; |
1779 | } |
4e35701f |
1780 | |
1781 | |