Commit | Line | Data |
a0d0e21e |
1 | /* mg.c |
79072805 |
2 | * |
a0d0e21e |
3 | * Copyright (c) 1991-1994, 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 | |
188ea221 |
23 | #ifdef HAS_GETGROUPS |
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 | break; |
290 | case '+': |
bbce6d69 |
291 | if (curpm && (rx = curpm->op_pmregexp)) { |
292 | paren = rx->lastparen; |
13f57bf8 |
293 | if (paren) |
294 | goto getparen; |
93a17b20 |
295 | } |
748a9306 |
296 | return 0; |
93a17b20 |
297 | break; |
298 | case '`': |
bbce6d69 |
299 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
300 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 |
301 | i = rx->startp[0] - s; |
71be2cbc |
302 | if (i >= 0) |
93a17b20 |
303 | return i; |
93a17b20 |
304 | } |
93a17b20 |
305 | } |
748a9306 |
306 | return 0; |
93a17b20 |
307 | case '\'': |
bbce6d69 |
308 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
309 | if (rx->subend && (s = rx->endp[0])) { |
310 | i = rx->subend - s; |
311 | if (i >= 0) |
312 | return 0; |
93a17b20 |
313 | } |
93a17b20 |
314 | } |
748a9306 |
315 | return 0; |
93a17b20 |
316 | case ',': |
317 | return (STRLEN)ofslen; |
318 | case '\\': |
319 | return (STRLEN)orslen; |
320 | } |
321 | magic_get(sv,mg); |
322 | if (!SvPOK(sv) && SvNIOK(sv)) |
463ee0b2 |
323 | sv_2pv(sv, &na); |
93a17b20 |
324 | if (SvPOK(sv)) |
325 | return SvCUR(sv); |
326 | return 0; |
327 | } |
328 | |
79072805 |
329 | int |
330 | magic_get(sv, mg) |
331 | SV *sv; |
332 | MAGIC *mg; |
333 | { |
334 | register I32 paren; |
335 | register char *s; |
336 | register I32 i; |
bbce6d69 |
337 | register REGEXP *rx; |
748a9306 |
338 | char *t; |
79072805 |
339 | |
340 | switch (*mg->mg_ptr) { |
748a9306 |
341 | case '\001': /* ^A */ |
342 | sv_setsv(sv, bodytarget); |
343 | break; |
79072805 |
344 | case '\004': /* ^D */ |
188ea221 |
345 | sv_setiv(sv, (IV)(debug & 32767)); |
79072805 |
346 | break; |
28f23441 |
347 | case '\005': /* ^E */ |
348 | #ifdef VMS |
349 | { |
350 | # include <descrip.h> |
351 | # include <starlet.h> |
352 | char msg[255]; |
353 | $DESCRIPTOR(msgdsc,msg); |
946ec16e |
354 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 |
355 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
356 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); |
357 | else |
358 | sv_setpv(sv,""); |
359 | } |
360 | #else |
88e89b8a |
361 | #ifdef OS2 |
946ec16e |
362 | sv_setnv(sv, (double)Perl_rc); |
88e89b8a |
363 | sv_setpv(sv, os2error(Perl_rc)); |
364 | #else |
946ec16e |
365 | sv_setnv(sv, (double)errno); |
28f23441 |
366 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
367 | #endif |
88e89b8a |
368 | #endif |
946ec16e |
369 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 |
370 | break; |
79072805 |
371 | case '\006': /* ^F */ |
188ea221 |
372 | sv_setiv(sv, (IV)maxsysfd); |
79072805 |
373 | break; |
a0d0e21e |
374 | case '\010': /* ^H */ |
188ea221 |
375 | sv_setiv(sv, (IV)hints); |
a0d0e21e |
376 | break; |
79072805 |
377 | case '\t': /* ^I */ |
378 | if (inplace) |
379 | sv_setpv(sv, inplace); |
380 | else |
188ea221 |
381 | sv_setsv(sv, &sv_undef); |
79072805 |
382 | break; |
28f23441 |
383 | case '\017': /* ^O */ |
188ea221 |
384 | sv_setpv(sv, osname); |
28f23441 |
385 | break; |
79072805 |
386 | case '\020': /* ^P */ |
188ea221 |
387 | sv_setiv(sv, (IV)perldb); |
79072805 |
388 | break; |
389 | case '\024': /* ^T */ |
88e89b8a |
390 | #ifdef BIG_TIME |
188ea221 |
391 | sv_setnv(sv, basetime); |
88e89b8a |
392 | #else |
188ea221 |
393 | sv_setiv(sv, (IV)basetime); |
88e89b8a |
394 | #endif |
79072805 |
395 | break; |
396 | case '\027': /* ^W */ |
188ea221 |
397 | sv_setiv(sv, (IV)dowarn); |
79072805 |
398 | break; |
399 | case '1': case '2': case '3': case '4': |
400 | case '5': case '6': case '7': case '8': case '9': case '&': |
bbce6d69 |
401 | if (curpm && (rx = curpm->op_pmregexp)) { |
88e89b8a |
402 | paren = atoi(GvENAME((GV*)mg->mg_obj)); |
79072805 |
403 | getparen: |
bbce6d69 |
404 | if (paren <= rx->nparens && |
405 | (s = rx->startp[paren]) && |
406 | (t = rx->endp[paren])) |
407 | { |
748a9306 |
408 | i = t - s; |
13f57bf8 |
409 | getrx: |
748a9306 |
410 | if (i >= 0) { |
13f57bf8 |
411 | bool was_tainted; |
412 | if (tainting) { |
413 | was_tainted = tainted; |
414 | tainted = FALSE; |
415 | } |
79072805 |
416 | sv_setpvn(sv,s,i); |
13f57bf8 |
417 | if (tainting) |
418 | tainted = was_tainted || rx->exec_tainted; |
748a9306 |
419 | break; |
420 | } |
79072805 |
421 | } |
79072805 |
422 | } |
748a9306 |
423 | sv_setsv(sv,&sv_undef); |
79072805 |
424 | break; |
425 | case '+': |
bbce6d69 |
426 | if (curpm && (rx = curpm->op_pmregexp)) { |
427 | paren = rx->lastparen; |
a0d0e21e |
428 | if (paren) |
429 | goto getparen; |
79072805 |
430 | } |
748a9306 |
431 | sv_setsv(sv,&sv_undef); |
79072805 |
432 | break; |
433 | case '`': |
bbce6d69 |
434 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
435 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 |
436 | i = rx->startp[0] - s; |
13f57bf8 |
437 | goto getrx; |
79072805 |
438 | } |
79072805 |
439 | } |
748a9306 |
440 | sv_setsv(sv,&sv_undef); |
79072805 |
441 | break; |
442 | case '\'': |
bbce6d69 |
443 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
444 | if (rx->subend && (s = rx->endp[0])) { |
445 | i = rx->subend - s; |
446 | goto getrx; |
79072805 |
447 | } |
79072805 |
448 | } |
748a9306 |
449 | sv_setsv(sv,&sv_undef); |
79072805 |
450 | break; |
451 | case '.': |
452 | #ifndef lint |
a0d0e21e |
453 | if (GvIO(last_in_gv)) { |
188ea221 |
454 | sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv))); |
79072805 |
455 | } |
456 | #endif |
457 | break; |
458 | case '?': |
188ea221 |
459 | sv_setiv(sv, (IV)statusvalue); |
79072805 |
460 | break; |
461 | case '^': |
a0d0e21e |
462 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 |
463 | if (s) |
464 | sv_setpv(sv,s); |
465 | else { |
466 | sv_setpv(sv,GvENAME(defoutgv)); |
467 | sv_catpv(sv,"_TOP"); |
468 | } |
469 | break; |
470 | case '~': |
a0d0e21e |
471 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 |
472 | if (!s) |
473 | s = GvENAME(defoutgv); |
474 | sv_setpv(sv,s); |
475 | break; |
476 | #ifndef lint |
477 | case '=': |
188ea221 |
478 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 |
479 | break; |
480 | case '-': |
188ea221 |
481 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 |
482 | break; |
483 | case '%': |
188ea221 |
484 | sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv))); |
79072805 |
485 | break; |
486 | #endif |
487 | case ':': |
488 | break; |
489 | case '/': |
490 | break; |
491 | case '[': |
188ea221 |
492 | sv_setiv(sv, (IV)curcop->cop_arybase); |
79072805 |
493 | break; |
494 | case '|': |
188ea221 |
495 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 |
496 | break; |
497 | case ',': |
498 | sv_setpvn(sv,ofs,ofslen); |
499 | break; |
500 | case '\\': |
501 | sv_setpvn(sv,ors,orslen); |
502 | break; |
503 | case '#': |
504 | sv_setpv(sv,ofmt); |
505 | break; |
506 | case '!': |
a5f75d66 |
507 | #ifdef VMS |
946ec16e |
508 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a |
509 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 |
510 | #else |
88e89b8a |
511 | { |
512 | int saveerrno = errno; |
946ec16e |
513 | sv_setnv(sv, (double)errno); |
88e89b8a |
514 | #ifdef OS2 |
515 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); |
516 | else |
a5f75d66 |
517 | #endif |
2304df62 |
518 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a |
519 | errno = saveerrno; |
520 | } |
521 | #endif |
946ec16e |
522 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 |
523 | break; |
524 | case '<': |
188ea221 |
525 | sv_setiv(sv, (IV)uid); |
79072805 |
526 | break; |
527 | case '>': |
188ea221 |
528 | sv_setiv(sv, (IV)euid); |
79072805 |
529 | break; |
530 | case '(': |
188ea221 |
531 | sv_setiv(sv, (IV)gid); |
79072805 |
532 | s = buf; |
533 | (void)sprintf(s,"%d",(int)gid); |
534 | goto add_groups; |
535 | case ')': |
188ea221 |
536 | sv_setiv(sv, (IV)egid); |
79072805 |
537 | s = buf; |
538 | (void)sprintf(s,"%d",(int)egid); |
539 | add_groups: |
540 | while (*s) s++; |
541 | #ifdef HAS_GETGROUPS |
79072805 |
542 | { |
a0d0e21e |
543 | Groups_t gary[NGROUPS]; |
79072805 |
544 | |
545 | i = getgroups(NGROUPS,gary); |
546 | while (--i >= 0) { |
188ea221 |
547 | (void)sprintf(s," %d", (int)gary[i]); |
79072805 |
548 | while (*s) s++; |
549 | } |
550 | } |
551 | #endif |
552 | sv_setpv(sv,buf); |
29355cf7 |
553 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 |
554 | break; |
555 | case '*': |
556 | break; |
557 | case '0': |
558 | break; |
559 | } |
a0d0e21e |
560 | return 0; |
79072805 |
561 | } |
562 | |
563 | int |
564 | magic_getuvar(sv, mg) |
565 | SV *sv; |
566 | MAGIC *mg; |
567 | { |
568 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
569 | |
570 | if (uf && uf->uf_val) |
571 | (*uf->uf_val)(uf->uf_index, sv); |
572 | return 0; |
573 | } |
574 | |
575 | int |
576 | magic_setenv(sv,mg) |
577 | SV* sv; |
578 | MAGIC* mg; |
579 | { |
580 | register char *s; |
88e89b8a |
581 | char *ptr; |
a0d0e21e |
582 | STRLEN len; |
583 | I32 i; |
584 | s = SvPV(sv,len); |
188ea221 |
585 | ptr = MgPV(mg); |
88e89b8a |
586 | my_setenv(ptr, s); |
a0d0e21e |
587 | #ifdef DYNAMIC_ENV_FETCH |
588 | /* We just undefd an environment var. Is a replacement */ |
589 | /* waiting in the wings? */ |
590 | if (!len) { |
88e89b8a |
591 | HE *envhe; |
188ea221 |
592 | SV *keysv; |
593 | if (mg->mg_len == HEf_SVKEY) keysv = (SV *)mg->mg_ptr; |
594 | else keysv = newSVpv(mg->mg_ptr,mg->mg_len); |
595 | if (envhe = hv_fetch_ent(GvHVn(envgv),keysv,FALSE,0)) |
88e89b8a |
596 | s = SvPV(HeVAL(envhe),len); |
188ea221 |
597 | if (mg->mg_len != HEf_SVKEY) SvREFCNT_dec(keysv); |
a0d0e21e |
598 | } |
599 | #endif |
79072805 |
600 | /* And you'll never guess what the dog had */ |
601 | /* in its mouth... */ |
463ee0b2 |
602 | if (tainting) { |
88e89b8a |
603 | if (s && strEQ(ptr,"PATH")) { |
a0d0e21e |
604 | char *strend = s + len; |
463ee0b2 |
605 | |
606 | while (s < strend) { |
607 | s = cpytill(tokenbuf,s,strend,':',&i); |
608 | s++; |
609 | if (*tokenbuf != '/' |
a0d0e21e |
610 | || (Stat(tokenbuf,&statbuf) && (statbuf.st_mode & 2)) ) |
8990e307 |
611 | MgTAINTEDDIR_on(mg); |
463ee0b2 |
612 | } |
79072805 |
613 | } |
614 | } |
79072805 |
615 | return 0; |
616 | } |
617 | |
618 | int |
85e6fe83 |
619 | magic_clearenv(sv,mg) |
620 | SV* sv; |
621 | MAGIC* mg; |
622 | { |
188ea221 |
623 | my_setenv(MgPV(mg),Nullch); |
85e6fe83 |
624 | return 0; |
625 | } |
626 | |
88e89b8a |
627 | int |
628 | magic_getsig(sv,mg) |
629 | SV* sv; |
630 | MAGIC* mg; |
631 | { |
632 | I32 i; |
633 | /* Are we fetching a signal entry? */ |
188ea221 |
634 | i = whichsig(MgPV(mg)); |
88e89b8a |
635 | if (i) { |
636 | if(psig_ptr[i]) |
637 | sv_setsv(sv,psig_ptr[i]); |
638 | else { |
ff68c719 |
639 | Sighandler_t sigstate = rsignal_state(i); |
640 | |
88e89b8a |
641 | /* cache state so we don't fetch it again */ |
ff68c719 |
642 | if(sigstate == SIG_IGN) |
88e89b8a |
643 | sv_setpv(sv,"IGNORE"); |
644 | else |
645 | sv_setsv(sv,&sv_undef); |
646 | psig_ptr[i] = SvREFCNT_inc(sv); |
647 | SvTEMP_off(sv); |
648 | } |
649 | } |
650 | return 0; |
651 | } |
652 | int |
653 | magic_clearsig(sv,mg) |
654 | SV* sv; |
655 | MAGIC* mg; |
656 | { |
657 | I32 i; |
658 | /* Are we clearing a signal entry? */ |
188ea221 |
659 | i = whichsig(MgPV(mg)); |
88e89b8a |
660 | if (i) { |
661 | if(psig_ptr[i]) { |
662 | SvREFCNT_dec(psig_ptr[i]); |
663 | psig_ptr[i]=0; |
664 | } |
665 | if(psig_name[i]) { |
666 | SvREFCNT_dec(psig_name[i]); |
667 | psig_name[i]=0; |
668 | } |
669 | } |
670 | return 0; |
671 | } |
3d37d572 |
672 | |
85e6fe83 |
673 | int |
79072805 |
674 | magic_setsig(sv,mg) |
675 | SV* sv; |
676 | MAGIC* mg; |
677 | { |
678 | register char *s; |
679 | I32 i; |
748a9306 |
680 | SV** svp; |
a0d0e21e |
681 | |
188ea221 |
682 | s = MgPV(mg); |
748a9306 |
683 | if (*s == '_') { |
684 | if (strEQ(s,"__DIE__")) |
685 | svp = &diehook; |
686 | else if (strEQ(s,"__WARN__")) |
687 | svp = &warnhook; |
688 | else if (strEQ(s,"__PARSE__")) |
689 | svp = &parsehook; |
690 | else |
691 | croak("No such hook: %s", s); |
692 | i = 0; |
4633a7c4 |
693 | if (*svp) { |
694 | SvREFCNT_dec(*svp); |
695 | *svp = 0; |
696 | } |
748a9306 |
697 | } |
698 | else { |
699 | i = whichsig(s); /* ...no, a brick */ |
700 | if (!i) { |
701 | if (dowarn || strEQ(s,"ALARM")) |
702 | warn("No such signal: SIG%s", s); |
703 | return 0; |
704 | } |
88e89b8a |
705 | if(psig_ptr[i]) |
706 | SvREFCNT_dec(psig_ptr[i]); |
707 | psig_ptr[i] = SvREFCNT_inc(sv); |
708 | if(psig_name[i]) |
709 | SvREFCNT_dec(psig_name[i]); |
8646b087 |
710 | psig_name[i] = newSVpv(s,strlen(s)); |
88e89b8a |
711 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
712 | SvREADONLY_on(psig_name[i]); |
748a9306 |
713 | } |
a0d0e21e |
714 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 |
715 | if (i) |
ff68c719 |
716 | (void)rsignal(i, sighandler); |
748a9306 |
717 | else |
718 | *svp = SvREFCNT_inc(sv); |
a0d0e21e |
719 | return 0; |
720 | } |
721 | s = SvPV_force(sv,na); |
748a9306 |
722 | if (strEQ(s,"IGNORE")) { |
723 | if (i) |
ff68c719 |
724 | (void)rsignal(i, SIG_IGN); |
748a9306 |
725 | else |
726 | *svp = 0; |
727 | } |
728 | else if (strEQ(s,"DEFAULT") || !*s) { |
729 | if (i) |
ff68c719 |
730 | (void)rsignal(i, SIG_DFL); |
748a9306 |
731 | else |
732 | *svp = 0; |
733 | } |
79072805 |
734 | else { |
760ac839 |
735 | if(hints & HINT_STRICT_REFS) |
736 | die(no_symref,s,"a subroutine"); |
2304df62 |
737 | if (!strchr(s,':') && !strchr(s,'\'')) { |
738 | sprintf(tokenbuf, "main::%s",s); |
79072805 |
739 | sv_setpv(sv,tokenbuf); |
740 | } |
748a9306 |
741 | if (i) |
ff68c719 |
742 | (void)rsignal(i, sighandler); |
748a9306 |
743 | else |
744 | *svp = SvREFCNT_inc(sv); |
79072805 |
745 | } |
746 | return 0; |
747 | } |
748 | |
749 | int |
463ee0b2 |
750 | magic_setisa(sv,mg) |
79072805 |
751 | SV* sv; |
752 | MAGIC* mg; |
753 | { |
463ee0b2 |
754 | sub_generation++; |
755 | return 0; |
756 | } |
757 | |
a0d0e21e |
758 | #ifdef OVERLOAD |
759 | |
463ee0b2 |
760 | int |
a0d0e21e |
761 | magic_setamagic(sv,mg) |
463ee0b2 |
762 | SV* sv; |
763 | MAGIC* mg; |
764 | { |
a0d0e21e |
765 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
766 | amagic_generation++; |
463ee0b2 |
767 | |
a0d0e21e |
768 | return 0; |
769 | } |
770 | #endif /* OVERLOAD */ |
463ee0b2 |
771 | |
946ec16e |
772 | int |
773 | magic_setnkeys(sv,mg) |
774 | SV* sv; |
775 | MAGIC* mg; |
776 | { |
777 | if (LvTARG(sv)) { |
778 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); |
779 | LvTARG(sv) = Nullsv; /* Don't allow a ref to reassign this. */ |
780 | } |
781 | return 0; |
782 | } |
783 | |
a0d0e21e |
784 | static int |
785 | magic_methpack(sv,mg,meth) |
786 | SV* sv; |
787 | MAGIC* mg; |
788 | char *meth; |
789 | { |
790 | dSP; |
463ee0b2 |
791 | |
a0d0e21e |
792 | ENTER; |
793 | SAVETMPS; |
794 | PUSHMARK(sp); |
795 | EXTEND(sp, 2); |
796 | PUSHs(mg->mg_obj); |
88e89b8a |
797 | if (mg->mg_ptr) { |
798 | if (mg->mg_len >= 0) |
799 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
800 | else if (mg->mg_len == HEf_SVKEY) |
801 | PUSHs((SV*)mg->mg_ptr); |
802 | } |
a0d0e21e |
803 | else if (mg->mg_type == 'p') |
804 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
463ee0b2 |
805 | PUTBACK; |
806 | |
a0d0e21e |
807 | if (perl_call_method(meth, G_SCALAR)) |
808 | sv_setsv(sv, *stack_sp--); |
463ee0b2 |
809 | |
a0d0e21e |
810 | FREETMPS; |
811 | LEAVE; |
812 | return 0; |
813 | } |
463ee0b2 |
814 | |
a0d0e21e |
815 | int |
816 | magic_getpack(sv,mg) |
817 | SV* sv; |
818 | MAGIC* mg; |
819 | { |
820 | magic_methpack(sv,mg,"FETCH"); |
821 | if (mg->mg_ptr) |
822 | mg->mg_flags |= MGf_GSKIP; |
463ee0b2 |
823 | return 0; |
824 | } |
825 | |
826 | int |
827 | magic_setpack(sv,mg) |
828 | SV* sv; |
829 | MAGIC* mg; |
830 | { |
463ee0b2 |
831 | dSP; |
463ee0b2 |
832 | |
a0d0e21e |
833 | PUSHMARK(sp); |
834 | EXTEND(sp, 3); |
835 | PUSHs(mg->mg_obj); |
88e89b8a |
836 | if (mg->mg_ptr) { |
837 | if (mg->mg_len >= 0) |
838 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
839 | else if (mg->mg_len == HEf_SVKEY) |
840 | PUSHs((SV*)mg->mg_ptr); |
841 | } |
a0d0e21e |
842 | else if (mg->mg_type == 'p') |
843 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
463ee0b2 |
844 | PUSHs(sv); |
845 | PUTBACK; |
846 | |
a0d0e21e |
847 | perl_call_method("STORE", G_SCALAR|G_DISCARD); |
463ee0b2 |
848 | |
849 | return 0; |
850 | } |
851 | |
852 | int |
853 | magic_clearpack(sv,mg) |
854 | SV* sv; |
855 | MAGIC* mg; |
856 | { |
a0d0e21e |
857 | return magic_methpack(sv,mg,"DELETE"); |
858 | } |
463ee0b2 |
859 | |
a0d0e21e |
860 | int magic_wipepack(sv,mg) |
861 | SV* sv; |
862 | MAGIC* mg; |
863 | { |
864 | dSP; |
463ee0b2 |
865 | |
a0d0e21e |
866 | PUSHMARK(sp); |
867 | XPUSHs(mg->mg_obj); |
463ee0b2 |
868 | PUTBACK; |
463ee0b2 |
869 | |
a0d0e21e |
870 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
463ee0b2 |
871 | |
872 | return 0; |
873 | } |
874 | |
875 | int |
876 | magic_nextpack(sv,mg,key) |
877 | SV* sv; |
878 | MAGIC* mg; |
879 | SV* key; |
880 | { |
463ee0b2 |
881 | dSP; |
a0d0e21e |
882 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 |
883 | |
884 | ENTER; |
a0d0e21e |
885 | SAVETMPS; |
886 | PUSHMARK(sp); |
887 | EXTEND(sp, 2); |
888 | PUSHs(mg->mg_obj); |
463ee0b2 |
889 | if (SvOK(key)) |
890 | PUSHs(key); |
891 | PUTBACK; |
892 | |
a0d0e21e |
893 | if (perl_call_method(meth, G_SCALAR)) |
894 | sv_setsv(key, *stack_sp--); |
463ee0b2 |
895 | |
a0d0e21e |
896 | FREETMPS; |
897 | LEAVE; |
79072805 |
898 | return 0; |
899 | } |
900 | |
901 | int |
a0d0e21e |
902 | magic_existspack(sv,mg) |
903 | SV* sv; |
904 | MAGIC* mg; |
905 | { |
906 | return magic_methpack(sv,mg,"EXISTS"); |
907 | } |
908 | |
909 | int |
79072805 |
910 | magic_setdbline(sv,mg) |
911 | SV* sv; |
912 | MAGIC* mg; |
913 | { |
914 | OP *o; |
915 | I32 i; |
916 | GV* gv; |
917 | SV** svp; |
918 | |
919 | gv = DBline; |
920 | i = SvTRUE(sv); |
188ea221 |
921 | svp = av_fetch(GvAV(gv), |
922 | atoi(MgPV(mg)), FALSE); |
8990e307 |
923 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 |
924 | o->op_private = i; |
79072805 |
925 | else |
926 | warn("Can't break at that line\n"); |
927 | return 0; |
928 | } |
929 | |
930 | int |
931 | magic_getarylen(sv,mg) |
932 | SV* sv; |
933 | MAGIC* mg; |
934 | { |
a0d0e21e |
935 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 |
936 | return 0; |
937 | } |
938 | |
939 | int |
940 | magic_setarylen(sv,mg) |
941 | SV* sv; |
942 | MAGIC* mg; |
943 | { |
a0d0e21e |
944 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
945 | return 0; |
946 | } |
947 | |
948 | int |
949 | magic_getpos(sv,mg) |
950 | SV* sv; |
951 | MAGIC* mg; |
952 | { |
953 | SV* lsv = LvTARG(sv); |
954 | |
955 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
956 | mg = mg_find(lsv, 'g'); |
957 | if (mg && mg->mg_len >= 0) { |
958 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); |
959 | return 0; |
960 | } |
961 | } |
962 | (void)SvOK_off(sv); |
963 | return 0; |
964 | } |
965 | |
966 | int |
967 | magic_setpos(sv,mg) |
968 | SV* sv; |
969 | MAGIC* mg; |
970 | { |
971 | SV* lsv = LvTARG(sv); |
972 | SSize_t pos; |
973 | STRLEN len; |
974 | |
975 | mg = 0; |
976 | |
977 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
978 | mg = mg_find(lsv, 'g'); |
979 | if (!mg) { |
980 | if (!SvOK(sv)) |
981 | return 0; |
982 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); |
983 | mg = mg_find(lsv, 'g'); |
984 | } |
985 | else if (!SvOK(sv)) { |
986 | mg->mg_len = -1; |
987 | return 0; |
988 | } |
989 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); |
990 | |
991 | pos = SvIV(sv) - curcop->cop_arybase; |
992 | if (pos < 0) { |
993 | pos += len; |
994 | if (pos < 0) |
995 | pos = 0; |
996 | } |
997 | else if (pos > len) |
998 | pos = len; |
999 | mg->mg_len = pos; |
71be2cbc |
1000 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e |
1001 | |
79072805 |
1002 | return 0; |
1003 | } |
1004 | |
1005 | int |
1006 | magic_getglob(sv,mg) |
1007 | SV* sv; |
1008 | MAGIC* mg; |
1009 | { |
8646b087 |
1010 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1011 | SvFAKE_off(sv); |
946ec16e |
1012 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 |
1013 | SvFAKE_on(sv); |
1014 | } |
1015 | else |
946ec16e |
1016 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 |
1017 | return 0; |
1018 | } |
1019 | |
1020 | int |
1021 | magic_setglob(sv,mg) |
1022 | SV* sv; |
1023 | MAGIC* mg; |
1024 | { |
1025 | register char *s; |
1026 | GV* gv; |
1027 | |
1028 | if (!SvOK(sv)) |
1029 | return 0; |
463ee0b2 |
1030 | s = SvPV(sv, na); |
79072805 |
1031 | if (*s == '*' && s[1]) |
1032 | s++; |
85e6fe83 |
1033 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 |
1034 | if (sv == (SV*)gv) |
1035 | return 0; |
1036 | if (GvGP(sv)) |
88e89b8a |
1037 | gp_free((GV*)sv); |
79072805 |
1038 | GvGP(sv) = gp_ref(GvGP(gv)); |
1039 | if (!GvAV(gv)) |
1040 | gv_AVadd(gv); |
1041 | if (!GvHV(gv)) |
1042 | gv_HVadd(gv); |
a0d0e21e |
1043 | if (!GvIOp(gv)) |
1044 | GvIOp(gv) = newIO(); |
79072805 |
1045 | return 0; |
1046 | } |
1047 | |
1048 | int |
1049 | magic_setsubstr(sv,mg) |
1050 | SV* sv; |
1051 | MAGIC* mg; |
1052 | { |
8990e307 |
1053 | STRLEN len; |
1054 | char *tmps = SvPV(sv,len); |
1055 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); |
79072805 |
1056 | return 0; |
1057 | } |
1058 | |
1059 | int |
463ee0b2 |
1060 | magic_gettaint(sv,mg) |
1061 | SV* sv; |
1062 | MAGIC* mg; |
1063 | { |
bbce6d69 |
1064 | TAINT_IF((mg->mg_len & 1) || |
1065 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ |
463ee0b2 |
1066 | return 0; |
1067 | } |
1068 | |
1069 | int |
1070 | magic_settaint(sv,mg) |
1071 | SV* sv; |
1072 | MAGIC* mg; |
1073 | { |
748a9306 |
1074 | if (localizing) { |
1075 | if (localizing == 1) |
1076 | mg->mg_len <<= 1; |
1077 | else |
1078 | mg->mg_len >>= 1; |
a0d0e21e |
1079 | } |
748a9306 |
1080 | else if (tainted) |
1081 | mg->mg_len |= 1; |
1082 | else |
1083 | mg->mg_len &= ~1; |
463ee0b2 |
1084 | return 0; |
1085 | } |
1086 | |
1087 | int |
79072805 |
1088 | magic_setvec(sv,mg) |
1089 | SV* sv; |
1090 | MAGIC* mg; |
1091 | { |
1092 | do_vecset(sv); /* XXX slurp this routine */ |
1093 | return 0; |
1094 | } |
1095 | |
1096 | int |
71be2cbc |
1097 | magic_getitervar(sv,mg) |
5f05dabc |
1098 | SV* sv; |
1099 | MAGIC* mg; |
1100 | { |
71be2cbc |
1101 | SV *targ = Nullsv; |
5f05dabc |
1102 | if (LvTARGLEN(sv)) { |
1103 | AV* av = (AV*)LvTARG(sv); |
71be2cbc |
1104 | if (LvTARGOFF(sv) <= AvFILL(av)) |
1105 | targ = AvARRAY(av)[LvTARGOFF(sv)]; |
5f05dabc |
1106 | } |
71be2cbc |
1107 | else |
1108 | targ = LvTARG(sv); |
1109 | sv_setsv(sv, targ ? targ : &sv_undef); |
1110 | return 0; |
1111 | } |
1112 | |
1113 | int |
1114 | magic_setitervar(sv,mg) |
1115 | SV* sv; |
1116 | MAGIC* mg; |
1117 | { |
1118 | if (LvTARGLEN(sv)) |
1119 | vivify_itervar(sv); |
5f05dabc |
1120 | if (LvTARG(sv)) |
1121 | sv_setsv(LvTARG(sv), sv); |
1122 | return 0; |
1123 | } |
1124 | |
1125 | int |
71be2cbc |
1126 | magic_freeitervar(sv,mg) |
5f05dabc |
1127 | SV* sv; |
1128 | MAGIC* mg; |
1129 | { |
1130 | SvREFCNT_dec(LvTARG(sv)); |
71be2cbc |
1131 | return 0; |
1132 | } |
1133 | |
1134 | void |
1135 | vivify_itervar(sv) |
1136 | SV* sv; |
1137 | { |
1138 | AV* av; |
1139 | |
1140 | if (!LvTARGLEN(sv)) |
1141 | return; |
1142 | av = (AV*)LvTARG(sv); |
1143 | if (LvTARGOFF(sv) <= AvFILL(av)) { |
1144 | SV** svp = AvARRAY(av) + LvTARGOFF(sv); |
1145 | LvTARG(sv) = newSVsv(*svp); |
1146 | SvREFCNT_dec(*svp); |
1147 | *svp = SvREFCNT_inc(LvTARG(sv)); |
1148 | } |
1149 | else |
1150 | LvTARG(sv) = Nullsv; |
1151 | SvREFCNT_dec(av); |
1152 | LvTARGLEN(sv) = 0; |
5f05dabc |
1153 | } |
1154 | |
1155 | int |
93a17b20 |
1156 | magic_setmglob(sv,mg) |
1157 | SV* sv; |
1158 | MAGIC* mg; |
1159 | { |
a0d0e21e |
1160 | mg->mg_len = -1; |
c6496cc7 |
1161 | SvSCREAM_off(sv); |
93a17b20 |
1162 | return 0; |
1163 | } |
1164 | |
1165 | int |
79072805 |
1166 | magic_setbm(sv,mg) |
1167 | SV* sv; |
1168 | MAGIC* mg; |
1169 | { |
463ee0b2 |
1170 | sv_unmagic(sv, 'B'); |
79072805 |
1171 | SvVALID_off(sv); |
1172 | return 0; |
1173 | } |
1174 | |
1175 | int |
55497cff |
1176 | magic_setfm(sv,mg) |
1177 | SV* sv; |
1178 | MAGIC* mg; |
1179 | { |
1180 | sv_unmagic(sv, 'f'); |
1181 | SvCOMPILED_off(sv); |
1182 | return 0; |
1183 | } |
1184 | |
1185 | int |
79072805 |
1186 | magic_setuvar(sv,mg) |
1187 | SV* sv; |
1188 | MAGIC* mg; |
1189 | { |
1190 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
1191 | |
1192 | if (uf && uf->uf_set) |
1193 | (*uf->uf_set)(uf->uf_index, sv); |
1194 | return 0; |
1195 | } |
1196 | |
7a4c00b4 |
1197 | #ifdef USE_LOCALE_COLLATE |
79072805 |
1198 | int |
bbce6d69 |
1199 | magic_setcollxfrm(sv,mg) |
1200 | SV* sv; |
1201 | MAGIC* mg; |
1202 | { |
1203 | /* |
1204 | * René Descartes said "I think not." |
1205 | * and vanished with a faint plop. |
1206 | */ |
7a4c00b4 |
1207 | if (mg->mg_ptr) { |
1208 | Safefree(mg->mg_ptr); |
1209 | mg->mg_ptr = NULL; |
1210 | mg->mg_len = -1; |
1211 | } |
bbce6d69 |
1212 | return 0; |
1213 | } |
7a4c00b4 |
1214 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
1215 | |
1216 | int |
79072805 |
1217 | magic_set(sv,mg) |
1218 | SV* sv; |
1219 | MAGIC* mg; |
1220 | { |
1221 | register char *s; |
1222 | I32 i; |
8990e307 |
1223 | STRLEN len; |
79072805 |
1224 | switch (*mg->mg_ptr) { |
748a9306 |
1225 | case '\001': /* ^A */ |
1226 | sv_setsv(bodytarget, sv); |
1227 | break; |
79072805 |
1228 | case '\004': /* ^D */ |
8990e307 |
1229 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 |
1230 | DEBUG_x(dump_all()); |
1231 | break; |
28f23441 |
1232 | case '\005': /* ^E */ |
1233 | #ifdef VMS |
1234 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1235 | #else |
1236 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv),4); /* will anyone ever use this? */ |
1237 | #endif |
1238 | break; |
79072805 |
1239 | case '\006': /* ^F */ |
463ee0b2 |
1240 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1241 | break; |
a0d0e21e |
1242 | case '\010': /* ^H */ |
1243 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1244 | break; |
79072805 |
1245 | case '\t': /* ^I */ |
1246 | if (inplace) |
1247 | Safefree(inplace); |
1248 | if (SvOK(sv)) |
a0d0e21e |
1249 | inplace = savepv(SvPV(sv,na)); |
79072805 |
1250 | else |
1251 | inplace = Nullch; |
1252 | break; |
28f23441 |
1253 | case '\017': /* ^O */ |
1254 | if (osname) |
1255 | Safefree(osname); |
1256 | if (SvOK(sv)) |
1257 | osname = savepv(SvPV(sv,na)); |
1258 | else |
1259 | osname = Nullch; |
1260 | break; |
79072805 |
1261 | case '\020': /* ^P */ |
463ee0b2 |
1262 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1263 | if (i != perldb) { |
1264 | if (perldb) |
1265 | oldlastpm = curpm; |
1266 | else |
1267 | curpm = oldlastpm; |
1268 | } |
1269 | perldb = i; |
1270 | break; |
1271 | case '\024': /* ^T */ |
88e89b8a |
1272 | #ifdef BIG_TIME |
1273 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
1274 | #else |
85e6fe83 |
1275 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a |
1276 | #endif |
79072805 |
1277 | break; |
1278 | case '\027': /* ^W */ |
463ee0b2 |
1279 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1280 | break; |
1281 | case '.': |
748a9306 |
1282 | if (localizing) { |
1283 | if (localizing == 1) |
1284 | save_sptr((SV**)&last_in_gv); |
1285 | } |
88e89b8a |
1286 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e |
1287 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 |
1288 | break; |
1289 | case '^': |
a0d0e21e |
1290 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1291 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); |
1292 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1293 | break; |
1294 | case '~': |
a0d0e21e |
1295 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1296 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); |
1297 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1298 | break; |
1299 | case '=': |
a0d0e21e |
1300 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1301 | break; |
1302 | case '-': |
a0d0e21e |
1303 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1304 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) |
1305 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; |
79072805 |
1306 | break; |
1307 | case '%': |
a0d0e21e |
1308 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1309 | break; |
1310 | case '|': |
a0d0e21e |
1311 | IoFLAGS(GvIOp(defoutgv)) &= ~IOf_FLUSH; |
463ee0b2 |
1312 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) != 0) { |
a0d0e21e |
1313 | IoFLAGS(GvIOp(defoutgv)) |= IOf_FLUSH; |
79072805 |
1314 | } |
1315 | break; |
1316 | case '*': |
463ee0b2 |
1317 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1318 | multiline = (i != 0); |
1319 | break; |
1320 | case '/': |
c07a80fd |
1321 | SvREFCNT_dec(nrs); |
1322 | nrs = newSVsv(sv); |
1323 | SvREFCNT_dec(rs); |
1324 | rs = SvREFCNT_inc(nrs); |
79072805 |
1325 | break; |
1326 | case '\\': |
1327 | if (ors) |
1328 | Safefree(ors); |
a0d0e21e |
1329 | ors = savepv(SvPV(sv,orslen)); |
79072805 |
1330 | break; |
1331 | case ',': |
1332 | if (ofs) |
1333 | Safefree(ofs); |
a0d0e21e |
1334 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 |
1335 | break; |
1336 | case '#': |
1337 | if (ofmt) |
1338 | Safefree(ofmt); |
a0d0e21e |
1339 | ofmt = savepv(SvPV(sv,na)); |
79072805 |
1340 | break; |
1341 | case '[': |
a0d0e21e |
1342 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1343 | break; |
1344 | case '?': |
748a9306 |
1345 | statusvalue = FIXSTATUS(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1346 | break; |
1347 | case '!': |
28f23441 |
1348 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv),SvIV(sv) == EVMSERR ? 4 : vaxc$errno); /* will anyone ever use this? */ |
79072805 |
1349 | break; |
1350 | case '<': |
463ee0b2 |
1351 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1352 | if (delaymagic) { |
1353 | delaymagic |= DM_RUID; |
1354 | break; /* don't do magic till later */ |
1355 | } |
1356 | #ifdef HAS_SETRUID |
85e6fe83 |
1357 | (void)setruid((Uid_t)uid); |
79072805 |
1358 | #else |
1359 | #ifdef HAS_SETREUID |
85e6fe83 |
1360 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 |
1361 | #else |
85e6fe83 |
1362 | #ifdef HAS_SETRESUID |
1363 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); |
79072805 |
1364 | #else |
1365 | if (uid == euid) /* special case $< = $> */ |
1366 | (void)setuid(uid); |
a0d0e21e |
1367 | else { |
1368 | uid = (I32)getuid(); |
463ee0b2 |
1369 | croak("setruid() not implemented"); |
a0d0e21e |
1370 | } |
79072805 |
1371 | #endif |
1372 | #endif |
85e6fe83 |
1373 | #endif |
748a9306 |
1374 | uid = (I32)getuid(); |
4633a7c4 |
1375 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1376 | break; |
1377 | case '>': |
463ee0b2 |
1378 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1379 | if (delaymagic) { |
1380 | delaymagic |= DM_EUID; |
1381 | break; /* don't do magic till later */ |
1382 | } |
1383 | #ifdef HAS_SETEUID |
85e6fe83 |
1384 | (void)seteuid((Uid_t)euid); |
79072805 |
1385 | #else |
1386 | #ifdef HAS_SETREUID |
85e6fe83 |
1387 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1388 | #else |
1389 | #ifdef HAS_SETRESUID |
1390 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); |
79072805 |
1391 | #else |
1392 | if (euid == uid) /* special case $> = $< */ |
1393 | setuid(euid); |
a0d0e21e |
1394 | else { |
1395 | euid = (I32)geteuid(); |
463ee0b2 |
1396 | croak("seteuid() not implemented"); |
a0d0e21e |
1397 | } |
79072805 |
1398 | #endif |
1399 | #endif |
85e6fe83 |
1400 | #endif |
79072805 |
1401 | euid = (I32)geteuid(); |
4633a7c4 |
1402 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1403 | break; |
1404 | case '(': |
463ee0b2 |
1405 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1406 | if (delaymagic) { |
1407 | delaymagic |= DM_RGID; |
1408 | break; /* don't do magic till later */ |
1409 | } |
1410 | #ifdef HAS_SETRGID |
85e6fe83 |
1411 | (void)setrgid((Gid_t)gid); |
79072805 |
1412 | #else |
1413 | #ifdef HAS_SETREGID |
85e6fe83 |
1414 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1415 | #else |
1416 | #ifdef HAS_SETRESGID |
1417 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); |
79072805 |
1418 | #else |
1419 | if (gid == egid) /* special case $( = $) */ |
1420 | (void)setgid(gid); |
748a9306 |
1421 | else { |
1422 | gid = (I32)getgid(); |
463ee0b2 |
1423 | croak("setrgid() not implemented"); |
748a9306 |
1424 | } |
79072805 |
1425 | #endif |
1426 | #endif |
85e6fe83 |
1427 | #endif |
79072805 |
1428 | gid = (I32)getgid(); |
4633a7c4 |
1429 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1430 | break; |
1431 | case ')': |
463ee0b2 |
1432 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1433 | if (delaymagic) { |
1434 | delaymagic |= DM_EGID; |
1435 | break; /* don't do magic till later */ |
1436 | } |
1437 | #ifdef HAS_SETEGID |
85e6fe83 |
1438 | (void)setegid((Gid_t)egid); |
79072805 |
1439 | #else |
1440 | #ifdef HAS_SETREGID |
85e6fe83 |
1441 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1442 | #else |
1443 | #ifdef HAS_SETRESGID |
1444 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); |
79072805 |
1445 | #else |
1446 | if (egid == gid) /* special case $) = $( */ |
1447 | (void)setgid(egid); |
748a9306 |
1448 | else { |
1449 | egid = (I32)getegid(); |
463ee0b2 |
1450 | croak("setegid() not implemented"); |
748a9306 |
1451 | } |
79072805 |
1452 | #endif |
1453 | #endif |
85e6fe83 |
1454 | #endif |
79072805 |
1455 | egid = (I32)getegid(); |
4633a7c4 |
1456 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1457 | break; |
1458 | case ':': |
a0d0e21e |
1459 | chopset = SvPV_force(sv,na); |
79072805 |
1460 | break; |
1461 | case '0': |
1462 | if (!origalen) { |
1463 | s = origargv[0]; |
1464 | s += strlen(s); |
1465 | /* See if all the arguments are contiguous in memory */ |
1466 | for (i = 1; i < origargc; i++) { |
1467 | if (origargv[i] == s + 1) |
1468 | s += strlen(++s); /* this one is ok too */ |
1469 | } |
bbce6d69 |
1470 | /* can grab env area too? */ |
1471 | if (origenviron && origenviron[0] == s + 1) { |
79072805 |
1472 | my_setenv("NoNeSuCh", Nullch); |
1473 | /* force copy of environment */ |
1474 | for (i = 0; origenviron[i]; i++) |
1475 | if (origenviron[i] == s + 1) |
1476 | s += strlen(++s); |
1477 | } |
1478 | origalen = s - origargv[0]; |
1479 | } |
a0d0e21e |
1480 | s = SvPV_force(sv,len); |
8990e307 |
1481 | i = len; |
79072805 |
1482 | if (i >= origalen) { |
1483 | i = origalen; |
1484 | SvCUR_set(sv, i); |
1485 | *SvEND(sv) = '\0'; |
1486 | Copy(s, origargv[0], i, char); |
1487 | } |
1488 | else { |
1489 | Copy(s, origargv[0], i, char); |
1490 | s = origargv[0]+i; |
1491 | *s++ = '\0'; |
1492 | while (++i < origalen) |
8990e307 |
1493 | *s++ = ' '; |
1494 | s = origargv[0]+i; |
ed6116ce |
1495 | for (i = 1; i < origargc; i++) |
8990e307 |
1496 | origargv[i] = Nullch; |
79072805 |
1497 | } |
1498 | break; |
1499 | } |
1500 | return 0; |
1501 | } |
1502 | |
1503 | I32 |
1504 | whichsig(sig) |
1505 | char *sig; |
1506 | { |
1507 | register char **sigv; |
1508 | |
1509 | for (sigv = sig_name+1; *sigv; sigv++) |
1510 | if (strEQ(sig,*sigv)) |
8e07c86e |
1511 | return sig_num[sigv - sig_name]; |
79072805 |
1512 | #ifdef SIGCLD |
1513 | if (strEQ(sig,"CHLD")) |
1514 | return SIGCLD; |
1515 | #endif |
1516 | #ifdef SIGCHLD |
1517 | if (strEQ(sig,"CLD")) |
1518 | return SIGCHLD; |
1519 | #endif |
1520 | return 0; |
1521 | } |
1522 | |
ecfc5424 |
1523 | Signal_t |
79072805 |
1524 | sighandler(sig) |
a0d0e21e |
1525 | int sig; |
79072805 |
1526 | { |
1527 | dSP; |
1528 | GV *gv; |
a0d0e21e |
1529 | HV *st; |
79072805 |
1530 | SV *sv; |
1531 | CV *cv; |
79072805 |
1532 | AV *oldstack; |
760ac839 |
1533 | |
1534 | if(!psig_ptr[sig]) |
1535 | die("Signal SIG%s received, but no signal handler set.\n", |
1536 | sig_name[sig]); |
79072805 |
1537 | |
88e89b8a |
1538 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); |
a0d0e21e |
1539 | if (!cv || !CvROOT(cv)) { |
79072805 |
1540 | if (dowarn) |
1541 | warn("SIG%s handler \"%s\" not defined.\n", |
88e89b8a |
1542 | sig_name[sig], GvENAME(gv) ); |
79072805 |
1543 | return; |
1544 | } |
1545 | |
88e89b8a |
1546 | oldstack = curstack; |
1547 | if (curstack != signalstack) |
a0d0e21e |
1548 | AvFILL(signalstack) = 0; |
88e89b8a |
1549 | SWITCHSTACK(curstack, signalstack); |
79072805 |
1550 | |
88e89b8a |
1551 | if(psig_name[sig]) |
1552 | sv = SvREFCNT_inc(psig_name[sig]); |
1553 | else { |
1554 | sv = sv_newmortal(); |
1555 | sv_setpv(sv,sig_name[sig]); |
1556 | } |
a0d0e21e |
1557 | PUSHMARK(sp); |
79072805 |
1558 | PUSHs(sv); |
79072805 |
1559 | PUTBACK; |
a0d0e21e |
1560 | |
1561 | perl_call_sv((SV*)cv, G_DISCARD); |
79072805 |
1562 | |
1563 | SWITCHSTACK(signalstack, oldstack); |
79072805 |
1564 | |
1565 | return; |
1566 | } |