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 |
42 | save_magic(mgs, sv) |
43 | MGS* mgs; |
c07a80fd |
44 | SV* sv; |
45 | { |
c07a80fd |
46 | assert(SvMAGICAL(sv)); |
47 | |
c07a80fd |
48 | mgs->mgs_sv = sv; |
49 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); |
50 | SAVEDESTRUCTOR(restore_magic, mgs); |
51 | |
52 | SvMAGICAL_off(sv); |
53 | SvREADONLY_off(sv); |
54 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd |
55 | } |
56 | |
57 | static void |
58 | restore_magic(p) |
59 | void* p; |
60 | { |
48e43a1c |
61 | MGS* mgs = (MGS*)p; |
c07a80fd |
62 | SV* sv = mgs->mgs_sv; |
63 | |
64 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
65 | { |
66 | if (mgs->mgs_flags) |
67 | SvFLAGS(sv) |= mgs->mgs_flags; |
68 | else |
69 | mg_magical(sv); |
70 | if (SvGMAGICAL(sv)) |
71 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
72 | } |
c07a80fd |
73 | } |
74 | |
8e07c86e |
75 | |
8990e307 |
76 | void |
77 | mg_magical(sv) |
78 | SV* sv; |
79 | { |
80 | MAGIC* mg; |
81 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
82 | MGVTBL* vtbl = mg->mg_virtual; |
83 | if (vtbl) { |
a0d0e21e |
84 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 |
85 | SvGMAGICAL_on(sv); |
86 | if (vtbl->svt_set) |
87 | SvSMAGICAL_on(sv); |
88 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
89 | SvRMAGICAL_on(sv); |
90 | } |
91 | } |
92 | } |
93 | |
79072805 |
94 | int |
95 | mg_get(sv) |
96 | SV* sv; |
97 | { |
48e43a1c |
98 | MGS mgs; |
79072805 |
99 | MAGIC* mg; |
c6496cc7 |
100 | MAGIC** mgp; |
760ac839 |
101 | int mgp_valid = 0; |
463ee0b2 |
102 | |
c07a80fd |
103 | ENTER; |
48e43a1c |
104 | save_magic(&mgs, sv); |
463ee0b2 |
105 | |
c6496cc7 |
106 | mgp = &SvMAGIC(sv); |
107 | while ((mg = *mgp) != 0) { |
79072805 |
108 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
109 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
79072805 |
110 | (*vtbl->svt_get)(sv, mg); |
c6496cc7 |
111 | /* Ignore this magic if it's been deleted */ |
48e43a1c |
112 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
113 | (mg->mg_flags & MGf_GSKIP)) |
114 | mgs.mgs_flags = 0; |
a0d0e21e |
115 | } |
c6496cc7 |
116 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 |
117 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 |
118 | mgp = &mg->mg_moremagic; |
760ac839 |
119 | mgp_valid = 1; |
120 | } |
121 | else |
122 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ |
79072805 |
123 | } |
463ee0b2 |
124 | |
c07a80fd |
125 | LEAVE; |
79072805 |
126 | return 0; |
127 | } |
128 | |
129 | int |
130 | mg_set(sv) |
131 | SV* sv; |
132 | { |
48e43a1c |
133 | MGS mgs; |
79072805 |
134 | MAGIC* mg; |
463ee0b2 |
135 | MAGIC* nextmg; |
136 | |
c07a80fd |
137 | ENTER; |
48e43a1c |
138 | save_magic(&mgs, sv); |
463ee0b2 |
139 | |
140 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { |
79072805 |
141 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 |
142 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e |
143 | if (mg->mg_flags & MGf_GSKIP) { |
144 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ |
48e43a1c |
145 | mgs.mgs_flags = 0; |
a0d0e21e |
146 | } |
79072805 |
147 | if (vtbl && vtbl->svt_set) |
148 | (*vtbl->svt_set)(sv, mg); |
149 | } |
463ee0b2 |
150 | |
c07a80fd |
151 | LEAVE; |
79072805 |
152 | return 0; |
153 | } |
154 | |
155 | U32 |
156 | mg_len(sv) |
157 | SV* sv; |
158 | { |
159 | MAGIC* mg; |
748a9306 |
160 | char *junk; |
463ee0b2 |
161 | STRLEN len; |
463ee0b2 |
162 | |
79072805 |
163 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
164 | MGVTBL* vtbl = mg->mg_virtual; |
85e6fe83 |
165 | if (vtbl && vtbl->svt_len) { |
48e43a1c |
166 | MGS mgs; |
167 | |
c07a80fd |
168 | ENTER; |
48e43a1c |
169 | save_magic(&mgs, sv); |
a0d0e21e |
170 | /* omit MGf_GSKIP -- not changed here */ |
85e6fe83 |
171 | len = (*vtbl->svt_len)(sv, mg); |
c07a80fd |
172 | LEAVE; |
85e6fe83 |
173 | return len; |
174 | } |
175 | } |
176 | |
748a9306 |
177 | junk = SvPV(sv, len); |
463ee0b2 |
178 | return len; |
79072805 |
179 | } |
180 | |
181 | int |
182 | mg_clear(sv) |
183 | SV* sv; |
184 | { |
48e43a1c |
185 | MGS mgs; |
79072805 |
186 | MAGIC* mg; |
463ee0b2 |
187 | |
c07a80fd |
188 | ENTER; |
48e43a1c |
189 | save_magic(&mgs, sv); |
463ee0b2 |
190 | |
79072805 |
191 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
192 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
193 | /* omit GSKIP -- never set here */ |
194 | |
79072805 |
195 | if (vtbl && vtbl->svt_clear) |
196 | (*vtbl->svt_clear)(sv, mg); |
197 | } |
463ee0b2 |
198 | |
c07a80fd |
199 | LEAVE; |
79072805 |
200 | return 0; |
201 | } |
202 | |
93a17b20 |
203 | MAGIC* |
204 | mg_find(sv, type) |
205 | SV* sv; |
a0d0e21e |
206 | int type; |
93a17b20 |
207 | { |
208 | MAGIC* mg; |
93a17b20 |
209 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
210 | if (mg->mg_type == type) |
211 | return mg; |
212 | } |
213 | return 0; |
214 | } |
215 | |
79072805 |
216 | int |
463ee0b2 |
217 | mg_copy(sv, nsv, key, klen) |
79072805 |
218 | SV* sv; |
463ee0b2 |
219 | SV* nsv; |
220 | char *key; |
88e89b8a |
221 | I32 klen; |
79072805 |
222 | { |
463ee0b2 |
223 | int count = 0; |
79072805 |
224 | MAGIC* mg; |
463ee0b2 |
225 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
226 | if (isUPPER(mg->mg_type)) { |
a0d0e21e |
227 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 |
228 | count++; |
79072805 |
229 | } |
79072805 |
230 | } |
463ee0b2 |
231 | return count; |
79072805 |
232 | } |
233 | |
234 | int |
463ee0b2 |
235 | mg_free(sv) |
79072805 |
236 | SV* sv; |
237 | { |
238 | MAGIC* mg; |
239 | MAGIC* moremagic; |
240 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { |
241 | MGVTBL* vtbl = mg->mg_virtual; |
242 | moremagic = mg->mg_moremagic; |
243 | if (vtbl && vtbl->svt_free) |
244 | (*vtbl->svt_free)(sv, mg); |
93a17b20 |
245 | if (mg->mg_ptr && mg->mg_type != 'g') |
88e89b8a |
246 | if (mg->mg_len >= 0) |
247 | Safefree(mg->mg_ptr); |
248 | else if (mg->mg_len == HEf_SVKEY) |
249 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 |
250 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 |
251 | SvREFCNT_dec(mg->mg_obj); |
79072805 |
252 | Safefree(mg); |
253 | } |
254 | SvMAGIC(sv) = 0; |
255 | return 0; |
256 | } |
257 | |
258 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
259 | #include <signal.h> |
260 | #endif |
261 | |
93a17b20 |
262 | U32 |
263 | magic_len(sv, mg) |
264 | SV *sv; |
265 | MAGIC *mg; |
266 | { |
267 | register I32 paren; |
268 | register char *s; |
269 | register I32 i; |
bbce6d69 |
270 | register REGEXP *rx; |
748a9306 |
271 | char *t; |
93a17b20 |
272 | |
273 | switch (*mg->mg_ptr) { |
274 | case '1': case '2': case '3': case '4': |
275 | case '5': case '6': case '7': case '8': case '9': case '&': |
bbce6d69 |
276 | if (curpm && (rx = curpm->op_pmregexp)) { |
93a17b20 |
277 | paren = atoi(mg->mg_ptr); |
278 | getparen: |
bbce6d69 |
279 | if (paren <= rx->nparens && |
280 | (s = rx->startp[paren]) && |
281 | (t = rx->endp[paren])) |
282 | { |
748a9306 |
283 | i = t - 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)) { |
291 | paren = rx->lastparen; |
13f57bf8 |
292 | if (paren) |
293 | goto getparen; |
93a17b20 |
294 | } |
748a9306 |
295 | return 0; |
93a17b20 |
296 | case '`': |
bbce6d69 |
297 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
298 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 |
299 | i = rx->startp[0] - s; |
71be2cbc |
300 | if (i >= 0) |
93a17b20 |
301 | return i; |
93a17b20 |
302 | } |
93a17b20 |
303 | } |
748a9306 |
304 | return 0; |
93a17b20 |
305 | case '\'': |
bbce6d69 |
306 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
307 | if (rx->subend && (s = rx->endp[0])) { |
308 | i = rx->subend - s; |
309 | if (i >= 0) |
5cd24f17 |
310 | return i; |
93a17b20 |
311 | } |
93a17b20 |
312 | } |
748a9306 |
313 | return 0; |
93a17b20 |
314 | case ',': |
315 | return (STRLEN)ofslen; |
316 | case '\\': |
317 | return (STRLEN)orslen; |
318 | } |
319 | magic_get(sv,mg); |
320 | if (!SvPOK(sv) && SvNIOK(sv)) |
463ee0b2 |
321 | sv_2pv(sv, &na); |
93a17b20 |
322 | if (SvPOK(sv)) |
323 | return SvCUR(sv); |
324 | return 0; |
325 | } |
326 | |
79072805 |
327 | int |
328 | magic_get(sv, mg) |
329 | SV *sv; |
330 | MAGIC *mg; |
331 | { |
332 | register I32 paren; |
333 | register char *s; |
334 | register I32 i; |
bbce6d69 |
335 | register REGEXP *rx; |
748a9306 |
336 | char *t; |
79072805 |
337 | |
338 | switch (*mg->mg_ptr) { |
748a9306 |
339 | case '\001': /* ^A */ |
340 | sv_setsv(sv, bodytarget); |
341 | break; |
79072805 |
342 | case '\004': /* ^D */ |
188ea221 |
343 | sv_setiv(sv, (IV)(debug & 32767)); |
79072805 |
344 | break; |
28f23441 |
345 | case '\005': /* ^E */ |
346 | #ifdef VMS |
347 | { |
348 | # include <descrip.h> |
349 | # include <starlet.h> |
350 | char msg[255]; |
351 | $DESCRIPTOR(msgdsc,msg); |
946ec16e |
352 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 |
353 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
354 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); |
355 | else |
356 | sv_setpv(sv,""); |
357 | } |
358 | #else |
88e89b8a |
359 | #ifdef OS2 |
fb73857a |
360 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
361 | sv_setnv(sv, (double)errno); |
362 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
363 | } else { |
364 | if (errno != errno_isOS2) |
365 | Perl_rc = _syserrno(); |
366 | sv_setnv(sv, (double)Perl_rc); |
367 | sv_setpv(sv, os2error(Perl_rc)); |
368 | } |
88e89b8a |
369 | #else |
946ec16e |
370 | sv_setnv(sv, (double)errno); |
28f23441 |
371 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
372 | #endif |
88e89b8a |
373 | #endif |
946ec16e |
374 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 |
375 | break; |
79072805 |
376 | case '\006': /* ^F */ |
188ea221 |
377 | sv_setiv(sv, (IV)maxsysfd); |
79072805 |
378 | break; |
a0d0e21e |
379 | case '\010': /* ^H */ |
188ea221 |
380 | sv_setiv(sv, (IV)hints); |
a0d0e21e |
381 | break; |
79072805 |
382 | case '\t': /* ^I */ |
383 | if (inplace) |
384 | sv_setpv(sv, inplace); |
385 | else |
188ea221 |
386 | sv_setsv(sv, &sv_undef); |
79072805 |
387 | break; |
28f23441 |
388 | case '\017': /* ^O */ |
188ea221 |
389 | sv_setpv(sv, osname); |
28f23441 |
390 | break; |
79072805 |
391 | case '\020': /* ^P */ |
188ea221 |
392 | sv_setiv(sv, (IV)perldb); |
79072805 |
393 | break; |
fb73857a |
394 | case '\023': /* ^S */ |
d58bf5aa |
395 | { |
396 | dTHR; |
397 | if (lex_state != LEX_NOTPARSING) |
398 | SvOK_off(sv); |
399 | else if (in_eval) |
400 | sv_setiv(sv, 1); |
401 | else |
402 | sv_setiv(sv, 0); |
403 | } |
fb73857a |
404 | break; |
79072805 |
405 | case '\024': /* ^T */ |
88e89b8a |
406 | #ifdef BIG_TIME |
188ea221 |
407 | sv_setnv(sv, basetime); |
88e89b8a |
408 | #else |
188ea221 |
409 | sv_setiv(sv, (IV)basetime); |
88e89b8a |
410 | #endif |
79072805 |
411 | break; |
412 | case '\027': /* ^W */ |
188ea221 |
413 | sv_setiv(sv, (IV)dowarn); |
79072805 |
414 | break; |
415 | case '1': case '2': case '3': case '4': |
416 | case '5': case '6': case '7': case '8': case '9': case '&': |
bbce6d69 |
417 | if (curpm && (rx = curpm->op_pmregexp)) { |
88e89b8a |
418 | paren = atoi(GvENAME((GV*)mg->mg_obj)); |
79072805 |
419 | getparen: |
bbce6d69 |
420 | if (paren <= rx->nparens && |
421 | (s = rx->startp[paren]) && |
422 | (t = rx->endp[paren])) |
423 | { |
748a9306 |
424 | i = t - s; |
13f57bf8 |
425 | getrx: |
748a9306 |
426 | if (i >= 0) { |
13f57bf8 |
427 | bool was_tainted; |
428 | if (tainting) { |
429 | was_tainted = tainted; |
430 | tainted = FALSE; |
431 | } |
79072805 |
432 | sv_setpvn(sv,s,i); |
13f57bf8 |
433 | if (tainting) |
434 | tainted = was_tainted || rx->exec_tainted; |
748a9306 |
435 | break; |
436 | } |
79072805 |
437 | } |
79072805 |
438 | } |
748a9306 |
439 | sv_setsv(sv,&sv_undef); |
79072805 |
440 | break; |
441 | case '+': |
bbce6d69 |
442 | if (curpm && (rx = curpm->op_pmregexp)) { |
443 | paren = rx->lastparen; |
a0d0e21e |
444 | if (paren) |
445 | goto getparen; |
79072805 |
446 | } |
748a9306 |
447 | sv_setsv(sv,&sv_undef); |
79072805 |
448 | break; |
449 | case '`': |
bbce6d69 |
450 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
451 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 |
452 | i = rx->startp[0] - s; |
13f57bf8 |
453 | goto getrx; |
79072805 |
454 | } |
79072805 |
455 | } |
748a9306 |
456 | sv_setsv(sv,&sv_undef); |
79072805 |
457 | break; |
458 | case '\'': |
bbce6d69 |
459 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
460 | if (rx->subend && (s = rx->endp[0])) { |
461 | i = rx->subend - s; |
462 | goto getrx; |
79072805 |
463 | } |
79072805 |
464 | } |
748a9306 |
465 | sv_setsv(sv,&sv_undef); |
79072805 |
466 | break; |
467 | case '.': |
468 | #ifndef lint |
a0d0e21e |
469 | if (GvIO(last_in_gv)) { |
188ea221 |
470 | sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv))); |
79072805 |
471 | } |
472 | #endif |
473 | break; |
474 | case '?': |
809a5acc |
475 | { |
476 | dTHR; |
477 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 |
478 | #ifdef COMPLEX_STATUS |
809a5acc |
479 | LvTARGOFF(sv) = statusvalue; |
480 | LvTARGLEN(sv) = statusvalue_vms; |
ff0cee69 |
481 | #endif |
809a5acc |
482 | } |
79072805 |
483 | break; |
484 | case '^': |
a0d0e21e |
485 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 |
486 | if (s) |
487 | sv_setpv(sv,s); |
488 | else { |
489 | sv_setpv(sv,GvENAME(defoutgv)); |
490 | sv_catpv(sv,"_TOP"); |
491 | } |
492 | break; |
493 | case '~': |
a0d0e21e |
494 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 |
495 | if (!s) |
496 | s = GvENAME(defoutgv); |
497 | sv_setpv(sv,s); |
498 | break; |
499 | #ifndef lint |
500 | case '=': |
188ea221 |
501 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 |
502 | break; |
503 | case '-': |
188ea221 |
504 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 |
505 | break; |
506 | case '%': |
188ea221 |
507 | sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv))); |
79072805 |
508 | break; |
509 | #endif |
510 | case ':': |
511 | break; |
512 | case '/': |
513 | break; |
514 | case '[': |
0f15f207 |
515 | WITH_THR(sv_setiv(sv, (IV)curcop->cop_arybase)); |
79072805 |
516 | break; |
517 | case '|': |
188ea221 |
518 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 |
519 | break; |
520 | case ',': |
521 | sv_setpvn(sv,ofs,ofslen); |
522 | break; |
523 | case '\\': |
524 | sv_setpvn(sv,ors,orslen); |
525 | break; |
526 | case '#': |
527 | sv_setpv(sv,ofmt); |
528 | break; |
529 | case '!': |
a5f75d66 |
530 | #ifdef VMS |
946ec16e |
531 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a |
532 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 |
533 | #else |
88e89b8a |
534 | { |
535 | int saveerrno = errno; |
946ec16e |
536 | sv_setnv(sv, (double)errno); |
88e89b8a |
537 | #ifdef OS2 |
538 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); |
539 | else |
a5f75d66 |
540 | #endif |
2304df62 |
541 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a |
542 | errno = saveerrno; |
543 | } |
544 | #endif |
946ec16e |
545 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 |
546 | break; |
547 | case '<': |
188ea221 |
548 | sv_setiv(sv, (IV)uid); |
79072805 |
549 | break; |
550 | case '>': |
188ea221 |
551 | sv_setiv(sv, (IV)euid); |
79072805 |
552 | break; |
553 | case '(': |
188ea221 |
554 | sv_setiv(sv, (IV)gid); |
fc36a67e |
555 | sv_setpvf(sv, "%Vd", (IV)gid); |
79072805 |
556 | goto add_groups; |
557 | case ')': |
188ea221 |
558 | sv_setiv(sv, (IV)egid); |
fc36a67e |
559 | sv_setpvf(sv, "%Vd", (IV)egid); |
79072805 |
560 | add_groups: |
79072805 |
561 | #ifdef HAS_GETGROUPS |
79072805 |
562 | { |
a0d0e21e |
563 | Groups_t gary[NGROUPS]; |
79072805 |
564 | i = getgroups(NGROUPS,gary); |
46fc3d4c |
565 | while (--i >= 0) |
fc36a67e |
566 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 |
567 | } |
568 | #endif |
29355cf7 |
569 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 |
570 | break; |
571 | case '*': |
572 | break; |
573 | case '0': |
574 | break; |
575 | } |
a0d0e21e |
576 | return 0; |
79072805 |
577 | } |
578 | |
579 | int |
580 | magic_getuvar(sv, mg) |
581 | SV *sv; |
582 | MAGIC *mg; |
583 | { |
584 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
585 | |
586 | if (uf && uf->uf_val) |
587 | (*uf->uf_val)(uf->uf_index, sv); |
588 | return 0; |
589 | } |
590 | |
591 | int |
592 | magic_setenv(sv,mg) |
593 | SV* sv; |
594 | MAGIC* mg; |
595 | { |
596 | register char *s; |
88e89b8a |
597 | char *ptr; |
5aabfad6 |
598 | STRLEN len, klen; |
a0d0e21e |
599 | I32 i; |
1e422769 |
600 | |
a0d0e21e |
601 | s = SvPV(sv,len); |
5aabfad6 |
602 | ptr = MgPV(mg,klen); |
88e89b8a |
603 | my_setenv(ptr, s); |
1e422769 |
604 | |
a0d0e21e |
605 | #ifdef DYNAMIC_ENV_FETCH |
606 | /* We just undefd an environment var. Is a replacement */ |
607 | /* waiting in the wings? */ |
608 | if (!len) { |
5aabfad6 |
609 | SV **valp; |
610 | if ((valp = hv_fetch(GvHVn(envgv), ptr, klen, FALSE))) |
611 | s = SvPV(*valp, len); |
a0d0e21e |
612 | } |
613 | #endif |
1e422769 |
614 | |
3e3baf6d |
615 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) |
79072805 |
616 | /* And you'll never guess what the dog had */ |
617 | /* in its mouth... */ |
463ee0b2 |
618 | if (tainting) { |
1e422769 |
619 | MgTAINTEDDIR_off(mg); |
620 | #ifdef VMS |
5aabfad6 |
621 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 |
622 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
623 | struct stat sbuf; |
624 | int i = 0, j = 0; |
625 | |
626 | do { /* DCL$PATH may be a search list */ |
627 | while (1) { /* as may dev portion of any element */ |
628 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { |
629 | if ( *(cp+1) == '.' || *(cp+1) == '-' || |
630 | cando_by_name(S_IWUSR,0,elt) ) { |
631 | MgTAINTEDDIR_on(mg); |
632 | return 0; |
633 | } |
634 | } |
635 | if ((cp = strchr(elt, ':')) != Nullch) |
636 | *cp = '\0'; |
637 | if (my_trnlnm(elt, eltbuf, j++)) |
638 | elt = eltbuf; |
639 | else |
640 | break; |
641 | } |
642 | j = 0; |
643 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); |
644 | } |
645 | #endif /* VMS */ |
5aabfad6 |
646 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e |
647 | char *strend = s + len; |
463ee0b2 |
648 | |
649 | while (s < strend) { |
96827780 |
650 | char tmpbuf[256]; |
1e422769 |
651 | struct stat st; |
96827780 |
652 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e |
653 | s, strend, ':', &i); |
463ee0b2 |
654 | s++; |
96827780 |
655 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
656 | || *tmpbuf != '/' |
657 | || (Stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 |
658 | MgTAINTEDDIR_on(mg); |
1e422769 |
659 | return 0; |
660 | } |
463ee0b2 |
661 | } |
79072805 |
662 | } |
663 | } |
3e3baf6d |
664 | #endif /* neither OS2 nor AMIGAOS nor WIN32 */ |
1e422769 |
665 | |
79072805 |
666 | return 0; |
667 | } |
668 | |
669 | int |
85e6fe83 |
670 | magic_clearenv(sv,mg) |
671 | SV* sv; |
672 | MAGIC* mg; |
673 | { |
5aabfad6 |
674 | my_setenv(MgPV(mg,na),Nullch); |
85e6fe83 |
675 | return 0; |
676 | } |
677 | |
88e89b8a |
678 | int |
fb73857a |
679 | magic_set_all_env(sv,mg) |
680 | SV* sv; |
681 | MAGIC* mg; |
682 | { |
683 | #if defined(VMS) |
684 | die("Can't make list assignment to %%ENV on this system"); |
685 | #else |
d58bf5aa |
686 | dTHR; |
fb73857a |
687 | if (localizing) { |
688 | HE* entry; |
689 | magic_clear_all_env(sv,mg); |
690 | hv_iterinit((HV*)sv); |
691 | while (entry = hv_iternext((HV*)sv)) { |
692 | I32 keylen; |
693 | my_setenv(hv_iterkey(entry, &keylen), |
694 | SvPV(hv_iterval((HV*)sv, entry), na)); |
695 | } |
696 | } |
697 | #endif |
698 | return 0; |
699 | } |
700 | |
701 | int |
3e3baf6d |
702 | magic_clear_all_env(sv,mg) |
703 | SV* sv; |
704 | MAGIC* mg; |
66b1d557 |
705 | { |
3e3baf6d |
706 | #if defined(VMS) |
707 | die("Can't make list assignment to %%ENV on this system"); |
708 | #else |
709 | #ifdef WIN32 |
710 | char *envv = GetEnvironmentStrings(); |
711 | char *cur = envv; |
712 | STRLEN len; |
713 | while (*cur) { |
714 | char *end = strchr(cur,'='); |
715 | if (end && end != cur) { |
716 | *end = '\0'; |
717 | my_setenv(cur,Nullch); |
718 | *end = '='; |
719 | cur += strlen(end+1)+1; |
720 | } |
721 | else if ((len = strlen(cur))) |
722 | cur += len+1; |
723 | } |
724 | FreeEnvironmentStrings(envv); |
66b1d557 |
725 | #else |
726 | I32 i; |
727 | |
728 | if (environ == origenviron) |
729 | New(901, environ, 1, char*); |
730 | else |
731 | for (i = 0; environ[i]; i++) |
732 | Safefree(environ[i]); |
733 | environ[0] = Nullch; |
734 | |
66b1d557 |
735 | #endif |
3e3baf6d |
736 | #endif |
737 | return 0; |
66b1d557 |
738 | } |
739 | |
740 | int |
88e89b8a |
741 | magic_getsig(sv,mg) |
742 | SV* sv; |
743 | MAGIC* mg; |
744 | { |
745 | I32 i; |
746 | /* Are we fetching a signal entry? */ |
5aabfad6 |
747 | i = whichsig(MgPV(mg,na)); |
88e89b8a |
748 | if (i) { |
749 | if(psig_ptr[i]) |
750 | sv_setsv(sv,psig_ptr[i]); |
751 | else { |
e858de61 |
752 | dTHR; /* just for SvREFCNT_inc */ |
ff68c719 |
753 | Sighandler_t sigstate = rsignal_state(i); |
754 | |
88e89b8a |
755 | /* cache state so we don't fetch it again */ |
ff68c719 |
756 | if(sigstate == SIG_IGN) |
88e89b8a |
757 | sv_setpv(sv,"IGNORE"); |
758 | else |
759 | sv_setsv(sv,&sv_undef); |
760 | psig_ptr[i] = SvREFCNT_inc(sv); |
761 | SvTEMP_off(sv); |
762 | } |
763 | } |
764 | return 0; |
765 | } |
766 | int |
767 | magic_clearsig(sv,mg) |
768 | SV* sv; |
769 | MAGIC* mg; |
770 | { |
771 | I32 i; |
772 | /* Are we clearing a signal entry? */ |
5aabfad6 |
773 | i = whichsig(MgPV(mg,na)); |
88e89b8a |
774 | if (i) { |
775 | if(psig_ptr[i]) { |
776 | SvREFCNT_dec(psig_ptr[i]); |
777 | psig_ptr[i]=0; |
778 | } |
779 | if(psig_name[i]) { |
780 | SvREFCNT_dec(psig_name[i]); |
781 | psig_name[i]=0; |
782 | } |
783 | } |
784 | return 0; |
785 | } |
3d37d572 |
786 | |
85e6fe83 |
787 | int |
79072805 |
788 | magic_setsig(sv,mg) |
789 | SV* sv; |
790 | MAGIC* mg; |
791 | { |
11343788 |
792 | dTHR; |
79072805 |
793 | register char *s; |
794 | I32 i; |
748a9306 |
795 | SV** svp; |
a0d0e21e |
796 | |
5aabfad6 |
797 | s = MgPV(mg,na); |
748a9306 |
798 | if (*s == '_') { |
799 | if (strEQ(s,"__DIE__")) |
800 | svp = &diehook; |
801 | else if (strEQ(s,"__WARN__")) |
802 | svp = &warnhook; |
803 | else if (strEQ(s,"__PARSE__")) |
804 | svp = &parsehook; |
805 | else |
806 | croak("No such hook: %s", s); |
807 | i = 0; |
4633a7c4 |
808 | if (*svp) { |
809 | SvREFCNT_dec(*svp); |
810 | *svp = 0; |
811 | } |
748a9306 |
812 | } |
813 | else { |
814 | i = whichsig(s); /* ...no, a brick */ |
815 | if (!i) { |
816 | if (dowarn || strEQ(s,"ALARM")) |
817 | warn("No such signal: SIG%s", s); |
818 | return 0; |
819 | } |
ff0cee69 |
820 | SvREFCNT_dec(psig_name[i]); |
821 | SvREFCNT_dec(psig_ptr[i]); |
88e89b8a |
822 | psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
823 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
ff0cee69 |
824 | psig_name[i] = newSVpv(s, strlen(s)); |
88e89b8a |
825 | SvREADONLY_on(psig_name[i]); |
748a9306 |
826 | } |
a0d0e21e |
827 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 |
828 | if (i) |
c23142e2 |
829 | (void)rsignal(i, sighandlerp); |
748a9306 |
830 | else |
831 | *svp = SvREFCNT_inc(sv); |
a0d0e21e |
832 | return 0; |
833 | } |
834 | s = SvPV_force(sv,na); |
748a9306 |
835 | if (strEQ(s,"IGNORE")) { |
836 | if (i) |
ff68c719 |
837 | (void)rsignal(i, SIG_IGN); |
748a9306 |
838 | else |
839 | *svp = 0; |
840 | } |
841 | else if (strEQ(s,"DEFAULT") || !*s) { |
842 | if (i) |
ff68c719 |
843 | (void)rsignal(i, SIG_DFL); |
748a9306 |
844 | else |
845 | *svp = 0; |
846 | } |
79072805 |
847 | else { |
5aabfad6 |
848 | /* |
849 | * We should warn if HINT_STRICT_REFS, but without |
850 | * access to a known hint bit in a known OP, we can't |
851 | * tell whether HINT_STRICT_REFS is in force or not. |
852 | */ |
46fc3d4c |
853 | if (!strchr(s,':') && !strchr(s,'\'')) |
854 | sv_setpv(sv, form("main::%s", s)); |
748a9306 |
855 | if (i) |
c23142e2 |
856 | (void)rsignal(i, sighandlerp); |
748a9306 |
857 | else |
858 | *svp = SvREFCNT_inc(sv); |
79072805 |
859 | } |
860 | return 0; |
861 | } |
862 | |
863 | int |
463ee0b2 |
864 | magic_setisa(sv,mg) |
79072805 |
865 | SV* sv; |
866 | MAGIC* mg; |
867 | { |
463ee0b2 |
868 | sub_generation++; |
869 | return 0; |
870 | } |
871 | |
a0d0e21e |
872 | #ifdef OVERLOAD |
873 | |
463ee0b2 |
874 | int |
a0d0e21e |
875 | magic_setamagic(sv,mg) |
463ee0b2 |
876 | SV* sv; |
877 | MAGIC* mg; |
878 | { |
a0d0e21e |
879 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
880 | amagic_generation++; |
463ee0b2 |
881 | |
a0d0e21e |
882 | return 0; |
883 | } |
884 | #endif /* OVERLOAD */ |
463ee0b2 |
885 | |
946ec16e |
886 | int |
887 | magic_setnkeys(sv,mg) |
888 | SV* sv; |
889 | MAGIC* mg; |
890 | { |
891 | if (LvTARG(sv)) { |
892 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); |
893 | LvTARG(sv) = Nullsv; /* Don't allow a ref to reassign this. */ |
894 | } |
895 | return 0; |
896 | } |
897 | |
a0d0e21e |
898 | static int |
899 | magic_methpack(sv,mg,meth) |
900 | SV* sv; |
901 | MAGIC* mg; |
902 | char *meth; |
903 | { |
11343788 |
904 | dTHR; |
a0d0e21e |
905 | dSP; |
463ee0b2 |
906 | |
a0d0e21e |
907 | ENTER; |
908 | SAVETMPS; |
909 | PUSHMARK(sp); |
910 | EXTEND(sp, 2); |
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 | PUTBACK; |
921 | |
a0d0e21e |
922 | if (perl_call_method(meth, G_SCALAR)) |
923 | sv_setsv(sv, *stack_sp--); |
463ee0b2 |
924 | |
a0d0e21e |
925 | FREETMPS; |
926 | LEAVE; |
927 | return 0; |
928 | } |
463ee0b2 |
929 | |
a0d0e21e |
930 | int |
931 | magic_getpack(sv,mg) |
932 | SV* sv; |
933 | MAGIC* mg; |
934 | { |
935 | magic_methpack(sv,mg,"FETCH"); |
936 | if (mg->mg_ptr) |
937 | mg->mg_flags |= MGf_GSKIP; |
463ee0b2 |
938 | return 0; |
939 | } |
940 | |
941 | int |
942 | magic_setpack(sv,mg) |
943 | SV* sv; |
944 | MAGIC* mg; |
945 | { |
11343788 |
946 | dTHR; |
463ee0b2 |
947 | dSP; |
463ee0b2 |
948 | |
a0d0e21e |
949 | PUSHMARK(sp); |
950 | EXTEND(sp, 3); |
951 | PUSHs(mg->mg_obj); |
88e89b8a |
952 | if (mg->mg_ptr) { |
953 | if (mg->mg_len >= 0) |
954 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
955 | else if (mg->mg_len == HEf_SVKEY) |
956 | PUSHs((SV*)mg->mg_ptr); |
957 | } |
a0d0e21e |
958 | else if (mg->mg_type == 'p') |
959 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
463ee0b2 |
960 | PUSHs(sv); |
961 | PUTBACK; |
962 | |
a0d0e21e |
963 | perl_call_method("STORE", G_SCALAR|G_DISCARD); |
463ee0b2 |
964 | |
965 | return 0; |
966 | } |
967 | |
968 | int |
969 | magic_clearpack(sv,mg) |
970 | SV* sv; |
971 | MAGIC* mg; |
972 | { |
a0d0e21e |
973 | return magic_methpack(sv,mg,"DELETE"); |
974 | } |
463ee0b2 |
975 | |
a0d0e21e |
976 | int magic_wipepack(sv,mg) |
977 | SV* sv; |
978 | MAGIC* mg; |
979 | { |
11343788 |
980 | dTHR; |
a0d0e21e |
981 | dSP; |
463ee0b2 |
982 | |
a0d0e21e |
983 | PUSHMARK(sp); |
984 | XPUSHs(mg->mg_obj); |
463ee0b2 |
985 | PUTBACK; |
463ee0b2 |
986 | |
a0d0e21e |
987 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
463ee0b2 |
988 | |
989 | return 0; |
990 | } |
991 | |
992 | int |
993 | magic_nextpack(sv,mg,key) |
994 | SV* sv; |
995 | MAGIC* mg; |
996 | SV* key; |
997 | { |
11343788 |
998 | dTHR; |
463ee0b2 |
999 | dSP; |
a0d0e21e |
1000 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 |
1001 | |
1002 | ENTER; |
a0d0e21e |
1003 | SAVETMPS; |
1004 | PUSHMARK(sp); |
1005 | EXTEND(sp, 2); |
1006 | PUSHs(mg->mg_obj); |
463ee0b2 |
1007 | if (SvOK(key)) |
1008 | PUSHs(key); |
1009 | PUTBACK; |
1010 | |
a0d0e21e |
1011 | if (perl_call_method(meth, G_SCALAR)) |
1012 | sv_setsv(key, *stack_sp--); |
463ee0b2 |
1013 | |
a0d0e21e |
1014 | FREETMPS; |
1015 | LEAVE; |
79072805 |
1016 | return 0; |
1017 | } |
1018 | |
1019 | int |
a0d0e21e |
1020 | magic_existspack(sv,mg) |
1021 | SV* sv; |
1022 | MAGIC* mg; |
1023 | { |
1024 | return magic_methpack(sv,mg,"EXISTS"); |
1025 | } |
1026 | |
1027 | int |
79072805 |
1028 | magic_setdbline(sv,mg) |
1029 | SV* sv; |
1030 | MAGIC* mg; |
1031 | { |
11343788 |
1032 | dTHR; |
79072805 |
1033 | OP *o; |
1034 | I32 i; |
1035 | GV* gv; |
1036 | SV** svp; |
1037 | |
1038 | gv = DBline; |
1039 | i = SvTRUE(sv); |
188ea221 |
1040 | svp = av_fetch(GvAV(gv), |
5aabfad6 |
1041 | atoi(MgPV(mg,na)), FALSE); |
8990e307 |
1042 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 |
1043 | o->op_private = i; |
79072805 |
1044 | else |
1045 | warn("Can't break at that line\n"); |
1046 | return 0; |
1047 | } |
1048 | |
1049 | int |
1050 | magic_getarylen(sv,mg) |
1051 | SV* sv; |
1052 | MAGIC* mg; |
1053 | { |
0f15f207 |
1054 | dTHR; |
a0d0e21e |
1055 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 |
1056 | return 0; |
1057 | } |
1058 | |
1059 | int |
1060 | magic_setarylen(sv,mg) |
1061 | SV* sv; |
1062 | MAGIC* mg; |
1063 | { |
0f15f207 |
1064 | dTHR; |
a0d0e21e |
1065 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
1066 | return 0; |
1067 | } |
1068 | |
1069 | int |
1070 | magic_getpos(sv,mg) |
1071 | SV* sv; |
1072 | MAGIC* mg; |
1073 | { |
1074 | SV* lsv = LvTARG(sv); |
1075 | |
1076 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
1077 | mg = mg_find(lsv, 'g'); |
1078 | if (mg && mg->mg_len >= 0) { |
0f15f207 |
1079 | dTHR; |
a0d0e21e |
1080 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); |
1081 | return 0; |
1082 | } |
1083 | } |
1084 | (void)SvOK_off(sv); |
1085 | return 0; |
1086 | } |
1087 | |
1088 | int |
1089 | magic_setpos(sv,mg) |
1090 | SV* sv; |
1091 | MAGIC* mg; |
1092 | { |
1093 | SV* lsv = LvTARG(sv); |
1094 | SSize_t pos; |
1095 | STRLEN len; |
1096 | |
1097 | mg = 0; |
1098 | |
1099 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
1100 | mg = mg_find(lsv, 'g'); |
1101 | if (!mg) { |
1102 | if (!SvOK(sv)) |
1103 | return 0; |
1104 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); |
1105 | mg = mg_find(lsv, 'g'); |
1106 | } |
1107 | else if (!SvOK(sv)) { |
1108 | mg->mg_len = -1; |
1109 | return 0; |
1110 | } |
1111 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); |
1112 | |
0f15f207 |
1113 | WITH_THR(pos = SvIV(sv) - curcop->cop_arybase); |
a0d0e21e |
1114 | if (pos < 0) { |
1115 | pos += len; |
1116 | if (pos < 0) |
1117 | pos = 0; |
1118 | } |
1119 | else if (pos > len) |
1120 | pos = len; |
1121 | mg->mg_len = pos; |
71be2cbc |
1122 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e |
1123 | |
79072805 |
1124 | return 0; |
1125 | } |
1126 | |
1127 | int |
1128 | magic_getglob(sv,mg) |
1129 | SV* sv; |
1130 | MAGIC* mg; |
1131 | { |
8646b087 |
1132 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1133 | SvFAKE_off(sv); |
946ec16e |
1134 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 |
1135 | SvFAKE_on(sv); |
1136 | } |
1137 | else |
946ec16e |
1138 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 |
1139 | return 0; |
1140 | } |
1141 | |
1142 | int |
1143 | magic_setglob(sv,mg) |
1144 | SV* sv; |
1145 | MAGIC* mg; |
1146 | { |
1147 | register char *s; |
1148 | GV* gv; |
1149 | |
1150 | if (!SvOK(sv)) |
1151 | return 0; |
463ee0b2 |
1152 | s = SvPV(sv, na); |
79072805 |
1153 | if (*s == '*' && s[1]) |
1154 | s++; |
85e6fe83 |
1155 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 |
1156 | if (sv == (SV*)gv) |
1157 | return 0; |
1158 | if (GvGP(sv)) |
88e89b8a |
1159 | gp_free((GV*)sv); |
79072805 |
1160 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 |
1161 | return 0; |
1162 | } |
1163 | |
1164 | int |
1165 | magic_setsubstr(sv,mg) |
1166 | SV* sv; |
1167 | MAGIC* mg; |
1168 | { |
8990e307 |
1169 | STRLEN len; |
1170 | char *tmps = SvPV(sv,len); |
1171 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); |
79072805 |
1172 | return 0; |
1173 | } |
1174 | |
1175 | int |
463ee0b2 |
1176 | magic_gettaint(sv,mg) |
1177 | SV* sv; |
1178 | MAGIC* mg; |
1179 | { |
bbce6d69 |
1180 | TAINT_IF((mg->mg_len & 1) || |
1181 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ |
463ee0b2 |
1182 | return 0; |
1183 | } |
1184 | |
1185 | int |
1186 | magic_settaint(sv,mg) |
1187 | SV* sv; |
1188 | MAGIC* mg; |
1189 | { |
11343788 |
1190 | dTHR; |
748a9306 |
1191 | if (localizing) { |
1192 | if (localizing == 1) |
1193 | mg->mg_len <<= 1; |
1194 | else |
1195 | mg->mg_len >>= 1; |
a0d0e21e |
1196 | } |
748a9306 |
1197 | else if (tainted) |
1198 | mg->mg_len |= 1; |
1199 | else |
1200 | mg->mg_len &= ~1; |
463ee0b2 |
1201 | return 0; |
1202 | } |
1203 | |
1204 | int |
79072805 |
1205 | magic_setvec(sv,mg) |
1206 | SV* sv; |
1207 | MAGIC* mg; |
1208 | { |
1209 | do_vecset(sv); /* XXX slurp this routine */ |
1210 | return 0; |
1211 | } |
1212 | |
1213 | int |
68dc0745 |
1214 | magic_getdefelem(sv,mg) |
5f05dabc |
1215 | SV* sv; |
1216 | MAGIC* mg; |
1217 | { |
71be2cbc |
1218 | SV *targ = Nullsv; |
5f05dabc |
1219 | if (LvTARGLEN(sv)) { |
68dc0745 |
1220 | if (mg->mg_obj) { |
1221 | HV* hv = (HV*)LvTARG(sv); |
1222 | HE* he = hv_fetch_ent(hv, mg->mg_obj, FALSE, 0); |
1223 | if (he) |
1224 | targ = HeVAL(he); |
1225 | } |
1226 | else { |
1227 | AV* av = (AV*)LvTARG(sv); |
1228 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1229 | targ = AvARRAY(av)[LvTARGOFF(sv)]; |
1230 | } |
1231 | if (targ && targ != &sv_undef) { |
e858de61 |
1232 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 |
1233 | /* somebody else defined it for us */ |
1234 | SvREFCNT_dec(LvTARG(sv)); |
1235 | LvTARG(sv) = SvREFCNT_inc(targ); |
1236 | LvTARGLEN(sv) = 0; |
1237 | SvREFCNT_dec(mg->mg_obj); |
1238 | mg->mg_obj = Nullsv; |
1239 | mg->mg_flags &= ~MGf_REFCOUNTED; |
1240 | } |
5f05dabc |
1241 | } |
71be2cbc |
1242 | else |
1243 | targ = LvTARG(sv); |
1244 | sv_setsv(sv, targ ? targ : &sv_undef); |
1245 | return 0; |
1246 | } |
1247 | |
1248 | int |
68dc0745 |
1249 | magic_setdefelem(sv,mg) |
71be2cbc |
1250 | SV* sv; |
1251 | MAGIC* mg; |
1252 | { |
1253 | if (LvTARGLEN(sv)) |
68dc0745 |
1254 | vivify_defelem(sv); |
1255 | if (LvTARG(sv)) { |
5f05dabc |
1256 | sv_setsv(LvTARG(sv), sv); |
68dc0745 |
1257 | SvSETMAGIC(LvTARG(sv)); |
1258 | } |
5f05dabc |
1259 | return 0; |
1260 | } |
1261 | |
1262 | int |
68dc0745 |
1263 | magic_freedefelem(sv,mg) |
5f05dabc |
1264 | SV* sv; |
1265 | MAGIC* mg; |
1266 | { |
1267 | SvREFCNT_dec(LvTARG(sv)); |
71be2cbc |
1268 | return 0; |
1269 | } |
1270 | |
1271 | void |
68dc0745 |
1272 | vivify_defelem(sv) |
71be2cbc |
1273 | SV* sv; |
1274 | { |
e858de61 |
1275 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
68dc0745 |
1276 | MAGIC* mg; |
1277 | SV* value; |
71be2cbc |
1278 | |
68dc0745 |
1279 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc |
1280 | return; |
68dc0745 |
1281 | if (mg->mg_obj) { |
1282 | HV* hv = (HV*)LvTARG(sv); |
1283 | HE* he = hv_fetch_ent(hv, mg->mg_obj, TRUE, 0); |
1284 | if (!he || (value = HeVAL(he)) == &sv_undef) |
1285 | croak(no_helem, SvPV(mg->mg_obj, na)); |
71be2cbc |
1286 | } |
68dc0745 |
1287 | else { |
1288 | AV* av = (AV*)LvTARG(sv); |
5aabfad6 |
1289 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 |
1290 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1291 | else { |
1292 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); |
1293 | if (!svp || (value = *svp) == &sv_undef) |
1294 | croak(no_aelem, (I32)LvTARGOFF(sv)); |
1295 | } |
1296 | } |
3e3baf6d |
1297 | (void)SvREFCNT_inc(value); |
68dc0745 |
1298 | SvREFCNT_dec(LvTARG(sv)); |
1299 | LvTARG(sv) = value; |
71be2cbc |
1300 | LvTARGLEN(sv) = 0; |
68dc0745 |
1301 | SvREFCNT_dec(mg->mg_obj); |
1302 | mg->mg_obj = Nullsv; |
1303 | mg->mg_flags &= ~MGf_REFCOUNTED; |
5f05dabc |
1304 | } |
1305 | |
1306 | int |
93a17b20 |
1307 | magic_setmglob(sv,mg) |
1308 | SV* sv; |
1309 | MAGIC* mg; |
1310 | { |
a0d0e21e |
1311 | mg->mg_len = -1; |
c6496cc7 |
1312 | SvSCREAM_off(sv); |
93a17b20 |
1313 | return 0; |
1314 | } |
1315 | |
1316 | int |
79072805 |
1317 | magic_setbm(sv,mg) |
1318 | SV* sv; |
1319 | MAGIC* mg; |
1320 | { |
463ee0b2 |
1321 | sv_unmagic(sv, 'B'); |
79072805 |
1322 | SvVALID_off(sv); |
1323 | return 0; |
1324 | } |
1325 | |
1326 | int |
55497cff |
1327 | magic_setfm(sv,mg) |
1328 | SV* sv; |
1329 | MAGIC* mg; |
1330 | { |
1331 | sv_unmagic(sv, 'f'); |
1332 | SvCOMPILED_off(sv); |
1333 | return 0; |
1334 | } |
1335 | |
1336 | int |
79072805 |
1337 | magic_setuvar(sv,mg) |
1338 | SV* sv; |
1339 | MAGIC* mg; |
1340 | { |
1341 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
1342 | |
1343 | if (uf && uf->uf_set) |
1344 | (*uf->uf_set)(uf->uf_index, sv); |
1345 | return 0; |
1346 | } |
1347 | |
7a4c00b4 |
1348 | #ifdef USE_LOCALE_COLLATE |
79072805 |
1349 | int |
bbce6d69 |
1350 | magic_setcollxfrm(sv,mg) |
1351 | SV* sv; |
1352 | MAGIC* mg; |
1353 | { |
1354 | /* |
1355 | * René Descartes said "I think not." |
1356 | * and vanished with a faint plop. |
1357 | */ |
7a4c00b4 |
1358 | if (mg->mg_ptr) { |
1359 | Safefree(mg->mg_ptr); |
1360 | mg->mg_ptr = NULL; |
1361 | mg->mg_len = -1; |
1362 | } |
bbce6d69 |
1363 | return 0; |
1364 | } |
7a4c00b4 |
1365 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
1366 | |
1367 | int |
79072805 |
1368 | magic_set(sv,mg) |
1369 | SV* sv; |
1370 | MAGIC* mg; |
1371 | { |
11343788 |
1372 | dTHR; |
79072805 |
1373 | register char *s; |
1374 | I32 i; |
8990e307 |
1375 | STRLEN len; |
79072805 |
1376 | switch (*mg->mg_ptr) { |
748a9306 |
1377 | case '\001': /* ^A */ |
1378 | sv_setsv(bodytarget, sv); |
1379 | break; |
79072805 |
1380 | case '\004': /* ^D */ |
8990e307 |
1381 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 |
1382 | DEBUG_x(dump_all()); |
1383 | break; |
28f23441 |
1384 | case '\005': /* ^E */ |
1385 | #ifdef VMS |
1386 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1387 | #else |
f86702cc |
1388 | /* will anyone ever use this? */ |
1389 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); |
28f23441 |
1390 | #endif |
1391 | break; |
79072805 |
1392 | case '\006': /* ^F */ |
463ee0b2 |
1393 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1394 | break; |
a0d0e21e |
1395 | case '\010': /* ^H */ |
1396 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1397 | break; |
79072805 |
1398 | case '\t': /* ^I */ |
1399 | if (inplace) |
1400 | Safefree(inplace); |
1401 | if (SvOK(sv)) |
a0d0e21e |
1402 | inplace = savepv(SvPV(sv,na)); |
79072805 |
1403 | else |
1404 | inplace = Nullch; |
1405 | break; |
28f23441 |
1406 | case '\017': /* ^O */ |
1407 | if (osname) |
1408 | Safefree(osname); |
1409 | if (SvOK(sv)) |
1410 | osname = savepv(SvPV(sv,na)); |
1411 | else |
1412 | osname = Nullch; |
1413 | break; |
79072805 |
1414 | case '\020': /* ^P */ |
84902520 |
1415 | perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1416 | break; |
1417 | case '\024': /* ^T */ |
88e89b8a |
1418 | #ifdef BIG_TIME |
1419 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
1420 | #else |
85e6fe83 |
1421 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a |
1422 | #endif |
79072805 |
1423 | break; |
1424 | case '\027': /* ^W */ |
463ee0b2 |
1425 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1426 | break; |
1427 | case '.': |
748a9306 |
1428 | if (localizing) { |
1429 | if (localizing == 1) |
1430 | save_sptr((SV**)&last_in_gv); |
1431 | } |
88e89b8a |
1432 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e |
1433 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 |
1434 | break; |
1435 | case '^': |
a0d0e21e |
1436 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1437 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); |
1438 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1439 | break; |
1440 | case '~': |
a0d0e21e |
1441 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1442 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); |
1443 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1444 | break; |
1445 | case '=': |
a0d0e21e |
1446 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1447 | break; |
1448 | case '-': |
a0d0e21e |
1449 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1450 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) |
1451 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; |
79072805 |
1452 | break; |
1453 | case '%': |
a0d0e21e |
1454 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1455 | break; |
1456 | case '|': |
4b65379b |
1457 | { |
1458 | IO *io = GvIOp(defoutgv); |
1459 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1460 | IoFLAGS(io) &= ~IOf_FLUSH; |
1461 | else { |
1462 | if (!(IoFLAGS(io) & IOf_FLUSH)) { |
1463 | PerlIO *ofp = IoOFP(io); |
1464 | if (ofp) |
1465 | (void)PerlIO_flush(ofp); |
1466 | IoFLAGS(io) |= IOf_FLUSH; |
1467 | } |
1468 | } |
79072805 |
1469 | } |
1470 | break; |
1471 | case '*': |
463ee0b2 |
1472 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1473 | multiline = (i != 0); |
1474 | break; |
1475 | case '/': |
c07a80fd |
1476 | SvREFCNT_dec(nrs); |
1477 | nrs = newSVsv(sv); |
1478 | SvREFCNT_dec(rs); |
1479 | rs = SvREFCNT_inc(nrs); |
79072805 |
1480 | break; |
1481 | case '\\': |
1482 | if (ors) |
1483 | Safefree(ors); |
e3c19b7b |
1484 | if (SvOK(sv) || SvGMAGICAL(sv)) |
1485 | ors = savepv(SvPV(sv,orslen)); |
1486 | else { |
1487 | ors = Nullch; |
1488 | orslen = 0; |
1489 | } |
79072805 |
1490 | break; |
1491 | case ',': |
1492 | if (ofs) |
1493 | Safefree(ofs); |
a0d0e21e |
1494 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 |
1495 | break; |
1496 | case '#': |
1497 | if (ofmt) |
1498 | Safefree(ofmt); |
a0d0e21e |
1499 | ofmt = savepv(SvPV(sv,na)); |
79072805 |
1500 | break; |
1501 | case '[': |
a0d0e21e |
1502 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1503 | break; |
1504 | case '?': |
ff0cee69 |
1505 | #ifdef COMPLEX_STATUS |
1506 | if (localizing == 2) { |
1507 | statusvalue = LvTARGOFF(sv); |
1508 | statusvalue_vms = LvTARGLEN(sv); |
1509 | } |
1510 | else |
1511 | #endif |
1512 | #ifdef VMSISH_STATUS |
1513 | if (VMSISH_STATUS) |
1514 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); |
1515 | else |
1516 | #endif |
1517 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1518 | break; |
1519 | case '!': |
f86702cc |
1520 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), |
1521 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 |
1522 | break; |
1523 | case '<': |
463ee0b2 |
1524 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1525 | if (delaymagic) { |
1526 | delaymagic |= DM_RUID; |
1527 | break; /* don't do magic till later */ |
1528 | } |
1529 | #ifdef HAS_SETRUID |
85e6fe83 |
1530 | (void)setruid((Uid_t)uid); |
79072805 |
1531 | #else |
1532 | #ifdef HAS_SETREUID |
85e6fe83 |
1533 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 |
1534 | #else |
85e6fe83 |
1535 | #ifdef HAS_SETRESUID |
1536 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); |
79072805 |
1537 | #else |
1538 | if (uid == euid) /* special case $< = $> */ |
1539 | (void)setuid(uid); |
a0d0e21e |
1540 | else { |
1541 | uid = (I32)getuid(); |
463ee0b2 |
1542 | croak("setruid() not implemented"); |
a0d0e21e |
1543 | } |
79072805 |
1544 | #endif |
1545 | #endif |
85e6fe83 |
1546 | #endif |
748a9306 |
1547 | uid = (I32)getuid(); |
4633a7c4 |
1548 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1549 | break; |
1550 | case '>': |
463ee0b2 |
1551 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1552 | if (delaymagic) { |
1553 | delaymagic |= DM_EUID; |
1554 | break; /* don't do magic till later */ |
1555 | } |
1556 | #ifdef HAS_SETEUID |
85e6fe83 |
1557 | (void)seteuid((Uid_t)euid); |
79072805 |
1558 | #else |
1559 | #ifdef HAS_SETREUID |
85e6fe83 |
1560 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1561 | #else |
1562 | #ifdef HAS_SETRESUID |
1563 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); |
79072805 |
1564 | #else |
1565 | if (euid == uid) /* special case $> = $< */ |
1566 | setuid(euid); |
a0d0e21e |
1567 | else { |
1568 | euid = (I32)geteuid(); |
463ee0b2 |
1569 | croak("seteuid() not implemented"); |
a0d0e21e |
1570 | } |
79072805 |
1571 | #endif |
1572 | #endif |
85e6fe83 |
1573 | #endif |
79072805 |
1574 | euid = (I32)geteuid(); |
4633a7c4 |
1575 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1576 | break; |
1577 | case '(': |
463ee0b2 |
1578 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1579 | if (delaymagic) { |
1580 | delaymagic |= DM_RGID; |
1581 | break; /* don't do magic till later */ |
1582 | } |
1583 | #ifdef HAS_SETRGID |
85e6fe83 |
1584 | (void)setrgid((Gid_t)gid); |
79072805 |
1585 | #else |
1586 | #ifdef HAS_SETREGID |
85e6fe83 |
1587 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1588 | #else |
1589 | #ifdef HAS_SETRESGID |
1590 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); |
79072805 |
1591 | #else |
1592 | if (gid == egid) /* special case $( = $) */ |
1593 | (void)setgid(gid); |
748a9306 |
1594 | else { |
1595 | gid = (I32)getgid(); |
463ee0b2 |
1596 | croak("setrgid() not implemented"); |
748a9306 |
1597 | } |
79072805 |
1598 | #endif |
1599 | #endif |
85e6fe83 |
1600 | #endif |
79072805 |
1601 | gid = (I32)getgid(); |
4633a7c4 |
1602 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1603 | break; |
1604 | case ')': |
5cd24f17 |
1605 | #ifdef HAS_SETGROUPS |
1606 | { |
1607 | char *p = SvPV(sv, na); |
1608 | Groups_t gary[NGROUPS]; |
1609 | |
1610 | SET_NUMERIC_STANDARD(); |
1611 | while (isSPACE(*p)) |
1612 | ++p; |
1613 | egid = I_V(atof(p)); |
1614 | for (i = 0; i < NGROUPS; ++i) { |
1615 | while (*p && !isSPACE(*p)) |
1616 | ++p; |
1617 | while (isSPACE(*p)) |
1618 | ++p; |
1619 | if (!*p) |
1620 | break; |
1621 | gary[i] = I_V(atof(p)); |
1622 | } |
8cc95fdb |
1623 | if (i) |
1624 | (void)setgroups(i, gary); |
5cd24f17 |
1625 | } |
1626 | #else /* HAS_SETGROUPS */ |
463ee0b2 |
1627 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 |
1628 | #endif /* HAS_SETGROUPS */ |
79072805 |
1629 | if (delaymagic) { |
1630 | delaymagic |= DM_EGID; |
1631 | break; /* don't do magic till later */ |
1632 | } |
1633 | #ifdef HAS_SETEGID |
85e6fe83 |
1634 | (void)setegid((Gid_t)egid); |
79072805 |
1635 | #else |
1636 | #ifdef HAS_SETREGID |
85e6fe83 |
1637 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1638 | #else |
1639 | #ifdef HAS_SETRESGID |
1640 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); |
79072805 |
1641 | #else |
1642 | if (egid == gid) /* special case $) = $( */ |
1643 | (void)setgid(egid); |
748a9306 |
1644 | else { |
1645 | egid = (I32)getegid(); |
463ee0b2 |
1646 | croak("setegid() not implemented"); |
748a9306 |
1647 | } |
79072805 |
1648 | #endif |
1649 | #endif |
85e6fe83 |
1650 | #endif |
79072805 |
1651 | egid = (I32)getegid(); |
4633a7c4 |
1652 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1653 | break; |
1654 | case ':': |
a0d0e21e |
1655 | chopset = SvPV_force(sv,na); |
79072805 |
1656 | break; |
1657 | case '0': |
1658 | if (!origalen) { |
1659 | s = origargv[0]; |
1660 | s += strlen(s); |
1661 | /* See if all the arguments are contiguous in memory */ |
1662 | for (i = 1; i < origargc; i++) { |
fb73857a |
1663 | if (origargv[i] == s + 1 |
1664 | #ifdef OS2 |
1665 | || origargv[i] == s + 2 |
1666 | #endif |
1667 | ) |
79072805 |
1668 | s += strlen(++s); /* this one is ok too */ |
fb73857a |
1669 | else |
1670 | break; |
79072805 |
1671 | } |
bbce6d69 |
1672 | /* can grab env area too? */ |
fb73857a |
1673 | if (origenviron && (origenviron[0] == s + 1 |
1674 | #ifdef OS2 |
1675 | || (origenviron[0] == s + 9 && (s += 8)) |
1676 | #endif |
1677 | )) { |
66b1d557 |
1678 | my_setenv("NoNe SuCh", Nullch); |
79072805 |
1679 | /* force copy of environment */ |
1680 | for (i = 0; origenviron[i]; i++) |
1681 | if (origenviron[i] == s + 1) |
1682 | s += strlen(++s); |
fb73857a |
1683 | else |
1684 | break; |
79072805 |
1685 | } |
1686 | origalen = s - origargv[0]; |
1687 | } |
a0d0e21e |
1688 | s = SvPV_force(sv,len); |
8990e307 |
1689 | i = len; |
79072805 |
1690 | if (i >= origalen) { |
1691 | i = origalen; |
fb73857a |
1692 | /* don't allow system to limit $0 seen by script */ |
1693 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ |
79072805 |
1694 | Copy(s, origargv[0], i, char); |
fb73857a |
1695 | s = origargv[0]+i; |
1696 | *s = '\0'; |
79072805 |
1697 | } |
1698 | else { |
1699 | Copy(s, origargv[0], i, char); |
1700 | s = origargv[0]+i; |
1701 | *s++ = '\0'; |
1702 | while (++i < origalen) |
8990e307 |
1703 | *s++ = ' '; |
1704 | s = origargv[0]+i; |
ed6116ce |
1705 | for (i = 1; i < origargc; i++) |
8990e307 |
1706 | origargv[i] = Nullch; |
79072805 |
1707 | } |
1708 | break; |
1709 | } |
1710 | return 0; |
1711 | } |
1712 | |
f93b4edd |
1713 | #ifdef USE_THREADS |
1714 | int |
1715 | magic_mutexfree(sv, mg) |
1716 | SV *sv; |
1717 | MAGIC *mg; |
1718 | { |
1719 | dTHR; |
bc1f4c86 |
1720 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
1721 | (unsigned long)thr, (unsigned long)sv);) |
f93b4edd |
1722 | if (MgOWNER(mg)) |
1723 | croak("panic: magic_mutexfree"); |
1724 | MUTEX_DESTROY(MgMUTEXP(mg)); |
1725 | COND_DESTROY(MgCONDP(mg)); |
e55aaa0e |
1726 | SvREFCNT_dec(sv); |
f93b4edd |
1727 | return 0; |
1728 | } |
1729 | #endif /* USE_THREADS */ |
1730 | |
79072805 |
1731 | I32 |
1732 | whichsig(sig) |
1733 | char *sig; |
1734 | { |
1735 | register char **sigv; |
1736 | |
1737 | for (sigv = sig_name+1; *sigv; sigv++) |
1738 | if (strEQ(sig,*sigv)) |
8e07c86e |
1739 | return sig_num[sigv - sig_name]; |
79072805 |
1740 | #ifdef SIGCLD |
1741 | if (strEQ(sig,"CHLD")) |
1742 | return SIGCLD; |
1743 | #endif |
1744 | #ifdef SIGCHLD |
1745 | if (strEQ(sig,"CLD")) |
1746 | return SIGCHLD; |
1747 | #endif |
1748 | return 0; |
1749 | } |
1750 | |
84902520 |
1751 | static SV* sig_sv; |
1752 | |
1753 | static void |
1754 | unwind_handler_stack(p) |
1755 | void *p; |
1756 | { |
ff26ac79 |
1757 | dTHR; |
84902520 |
1758 | U32 flags = *(U32*)p; |
1759 | |
1760 | if (flags & 1) |
1761 | savestack_ix -= 5; /* Unprotect save in progress. */ |
1762 | /* cxstack_ix-- Not needed, die already unwound it. */ |
1763 | if (flags & 64) |
1764 | SvREFCNT_dec(sig_sv); |
1765 | } |
1766 | |
ecfc5424 |
1767 | Signal_t |
79072805 |
1768 | sighandler(sig) |
a0d0e21e |
1769 | int sig; |
79072805 |
1770 | { |
11343788 |
1771 | dTHR; |
79072805 |
1772 | dSP; |
1773 | GV *gv; |
a0d0e21e |
1774 | HV *st; |
84902520 |
1775 | SV *sv, *tSv = Sv; |
79072805 |
1776 | CV *cv; |
79072805 |
1777 | AV *oldstack; |
84902520 |
1778 | OP *myop = op; |
1779 | U32 flags = 0; |
1780 | I32 o_save_i = savestack_ix, type; |
1781 | CONTEXT *cx; |
1782 | XPV *tXpv = Xpv; |
1783 | |
1784 | if (savestack_ix + 15 <= savestack_max) |
1785 | flags |= 1; |
1786 | if (cxstack_ix < cxstack_max - 2) |
1787 | flags |= 2; |
1788 | if (markstack_ptr < markstack_max - 2) |
1789 | flags |= 4; |
1790 | if (retstack_ix < retstack_max - 2) |
1791 | flags |= 8; |
1792 | if (scopestack_ix < scopestack_max - 3) |
1793 | flags |= 16; |
1794 | |
1795 | if (flags & 2) { /* POPBLOCK may decrease cxstack too early. */ |
1796 | cxstack_ix++; /* Protect from overwrite. */ |
1797 | cx = &cxstack[cxstack_ix]; |
1798 | type = cx->cx_type; /* Can be during partial write. */ |
1799 | cx->cx_type = CXt_NULL; /* Make it safe for unwind. */ |
1800 | } |
ff0cee69 |
1801 | if (!psig_ptr[sig]) |
1802 | die("Signal SIG%s received, but no signal handler set.\n", |
1803 | sig_name[sig]); |
1804 | |
84902520 |
1805 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
1806 | infinity, so we fix 4 (in fact 5): */ |
1807 | if (flags & 1) { |
1808 | savestack_ix += 5; /* Protect save in progress. */ |
1809 | o_save_i = savestack_ix; |
1810 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); |
1811 | } |
1812 | if (flags & 4) |
1813 | markstack_ptr++; /* Protect mark. */ |
1814 | if (flags & 8) { |
1815 | retstack_ix++; |
1816 | retstack[retstack_ix] = NULL; |
1817 | } |
1818 | if (flags & 16) |
1819 | scopestack_ix += 1; |
1820 | /* sv_2cv is too complicated, try a simpler variant first: */ |
1821 | if (!SvROK(psig_ptr[sig]) || !(cv = (CV*)SvRV(psig_ptr[sig])) |
1822 | || SvTYPE(cv) != SVt_PVCV) |
1823 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); |
1824 | |
a0d0e21e |
1825 | if (!cv || !CvROOT(cv)) { |
79072805 |
1826 | if (dowarn) |
1827 | warn("SIG%s handler \"%s\" not defined.\n", |
88e89b8a |
1828 | sig_name[sig], GvENAME(gv) ); |
79072805 |
1829 | return; |
1830 | } |
1831 | |
88e89b8a |
1832 | oldstack = curstack; |
1833 | if (curstack != signalstack) |
a0d0e21e |
1834 | AvFILL(signalstack) = 0; |
88e89b8a |
1835 | SWITCHSTACK(curstack, signalstack); |
79072805 |
1836 | |
84902520 |
1837 | if(psig_name[sig]) { |
88e89b8a |
1838 | sv = SvREFCNT_inc(psig_name[sig]); |
84902520 |
1839 | flags |= 64; |
1840 | sig_sv = sv; |
1841 | } else { |
ff0cee69 |
1842 | sv = sv_newmortal(); |
1843 | sv_setpv(sv,sig_name[sig]); |
88e89b8a |
1844 | } |
a0d0e21e |
1845 | PUSHMARK(sp); |
79072805 |
1846 | PUSHs(sv); |
79072805 |
1847 | PUTBACK; |
a0d0e21e |
1848 | |
1849 | perl_call_sv((SV*)cv, G_DISCARD); |
79072805 |
1850 | |
1851 | SWITCHSTACK(signalstack, oldstack); |
84902520 |
1852 | if (flags & 1) |
1853 | savestack_ix -= 8; /* Unprotect save in progress. */ |
1854 | if (flags & 2) { |
1855 | cxstack[cxstack_ix].cx_type = type; |
1856 | cxstack_ix -= 1; |
1857 | } |
1858 | if (flags & 4) |
1859 | markstack_ptr--; |
1860 | if (flags & 8) |
1861 | retstack_ix--; |
1862 | if (flags & 16) |
1863 | scopestack_ix -= 1; |
1864 | if (flags & 64) |
1865 | SvREFCNT_dec(sv); |
1866 | op = myop; /* Apparently not needed... */ |
1867 | |
1868 | Sv = tSv; /* Restore global temporaries. */ |
1869 | Xpv = tXpv; |
79072805 |
1870 | return; |
1871 | } |