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; |
f86702cc |
389 | case '\023': /* ^S */ |
390 | if (STATUS_NATIVE == -1) |
391 | sv_setiv(sv, (IV)-1); |
392 | else |
393 | sv_setuv(sv, (UV)STATUS_NATIVE); |
394 | break; |
79072805 |
395 | case '\024': /* ^T */ |
88e89b8a |
396 | #ifdef BIG_TIME |
188ea221 |
397 | sv_setnv(sv, basetime); |
88e89b8a |
398 | #else |
188ea221 |
399 | sv_setiv(sv, (IV)basetime); |
88e89b8a |
400 | #endif |
79072805 |
401 | break; |
402 | case '\027': /* ^W */ |
188ea221 |
403 | sv_setiv(sv, (IV)dowarn); |
79072805 |
404 | break; |
405 | case '1': case '2': case '3': case '4': |
406 | case '5': case '6': case '7': case '8': case '9': case '&': |
bbce6d69 |
407 | if (curpm && (rx = curpm->op_pmregexp)) { |
88e89b8a |
408 | paren = atoi(GvENAME((GV*)mg->mg_obj)); |
79072805 |
409 | getparen: |
bbce6d69 |
410 | if (paren <= rx->nparens && |
411 | (s = rx->startp[paren]) && |
412 | (t = rx->endp[paren])) |
413 | { |
748a9306 |
414 | i = t - s; |
13f57bf8 |
415 | getrx: |
748a9306 |
416 | if (i >= 0) { |
13f57bf8 |
417 | bool was_tainted; |
418 | if (tainting) { |
419 | was_tainted = tainted; |
420 | tainted = FALSE; |
421 | } |
79072805 |
422 | sv_setpvn(sv,s,i); |
13f57bf8 |
423 | if (tainting) |
424 | tainted = was_tainted || rx->exec_tainted; |
748a9306 |
425 | break; |
426 | } |
79072805 |
427 | } |
79072805 |
428 | } |
748a9306 |
429 | sv_setsv(sv,&sv_undef); |
79072805 |
430 | break; |
431 | case '+': |
bbce6d69 |
432 | if (curpm && (rx = curpm->op_pmregexp)) { |
433 | paren = rx->lastparen; |
a0d0e21e |
434 | if (paren) |
435 | goto getparen; |
79072805 |
436 | } |
748a9306 |
437 | sv_setsv(sv,&sv_undef); |
79072805 |
438 | break; |
439 | case '`': |
bbce6d69 |
440 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
441 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 |
442 | i = rx->startp[0] - s; |
13f57bf8 |
443 | goto getrx; |
79072805 |
444 | } |
79072805 |
445 | } |
748a9306 |
446 | sv_setsv(sv,&sv_undef); |
79072805 |
447 | break; |
448 | case '\'': |
bbce6d69 |
449 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
450 | if (rx->subend && (s = rx->endp[0])) { |
451 | i = rx->subend - s; |
452 | goto getrx; |
79072805 |
453 | } |
79072805 |
454 | } |
748a9306 |
455 | sv_setsv(sv,&sv_undef); |
79072805 |
456 | break; |
457 | case '.': |
458 | #ifndef lint |
a0d0e21e |
459 | if (GvIO(last_in_gv)) { |
188ea221 |
460 | sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv))); |
79072805 |
461 | } |
462 | #endif |
463 | break; |
464 | case '?': |
f86702cc |
465 | if (STATUS_POSIX == -1) |
466 | sv_setiv(sv, (IV)-1); |
467 | else |
468 | sv_setuv(sv, (UV)STATUS_POSIX); |
79072805 |
469 | break; |
470 | case '^': |
a0d0e21e |
471 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 |
472 | if (s) |
473 | sv_setpv(sv,s); |
474 | else { |
475 | sv_setpv(sv,GvENAME(defoutgv)); |
476 | sv_catpv(sv,"_TOP"); |
477 | } |
478 | break; |
479 | case '~': |
a0d0e21e |
480 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 |
481 | if (!s) |
482 | s = GvENAME(defoutgv); |
483 | sv_setpv(sv,s); |
484 | break; |
485 | #ifndef lint |
486 | case '=': |
188ea221 |
487 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 |
488 | break; |
489 | case '-': |
188ea221 |
490 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 |
491 | break; |
492 | case '%': |
188ea221 |
493 | sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv))); |
79072805 |
494 | break; |
495 | #endif |
496 | case ':': |
497 | break; |
498 | case '/': |
499 | break; |
500 | case '[': |
188ea221 |
501 | sv_setiv(sv, (IV)curcop->cop_arybase); |
79072805 |
502 | break; |
503 | case '|': |
188ea221 |
504 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 |
505 | break; |
506 | case ',': |
507 | sv_setpvn(sv,ofs,ofslen); |
508 | break; |
509 | case '\\': |
510 | sv_setpvn(sv,ors,orslen); |
511 | break; |
512 | case '#': |
513 | sv_setpv(sv,ofmt); |
514 | break; |
515 | case '!': |
a5f75d66 |
516 | #ifdef VMS |
946ec16e |
517 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a |
518 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 |
519 | #else |
88e89b8a |
520 | { |
521 | int saveerrno = errno; |
946ec16e |
522 | sv_setnv(sv, (double)errno); |
88e89b8a |
523 | #ifdef OS2 |
524 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); |
525 | else |
a5f75d66 |
526 | #endif |
2304df62 |
527 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a |
528 | errno = saveerrno; |
529 | } |
530 | #endif |
946ec16e |
531 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 |
532 | break; |
533 | case '<': |
188ea221 |
534 | sv_setiv(sv, (IV)uid); |
79072805 |
535 | break; |
536 | case '>': |
188ea221 |
537 | sv_setiv(sv, (IV)euid); |
79072805 |
538 | break; |
539 | case '(': |
188ea221 |
540 | sv_setiv(sv, (IV)gid); |
79072805 |
541 | s = buf; |
542 | (void)sprintf(s,"%d",(int)gid); |
543 | goto add_groups; |
544 | case ')': |
188ea221 |
545 | sv_setiv(sv, (IV)egid); |
79072805 |
546 | s = buf; |
547 | (void)sprintf(s,"%d",(int)egid); |
548 | add_groups: |
549 | while (*s) s++; |
550 | #ifdef HAS_GETGROUPS |
79072805 |
551 | { |
a0d0e21e |
552 | Groups_t gary[NGROUPS]; |
79072805 |
553 | |
554 | i = getgroups(NGROUPS,gary); |
555 | while (--i >= 0) { |
188ea221 |
556 | (void)sprintf(s," %d", (int)gary[i]); |
79072805 |
557 | while (*s) s++; |
558 | } |
559 | } |
560 | #endif |
561 | sv_setpv(sv,buf); |
29355cf7 |
562 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 |
563 | break; |
564 | case '*': |
565 | break; |
566 | case '0': |
567 | break; |
568 | } |
a0d0e21e |
569 | return 0; |
79072805 |
570 | } |
571 | |
572 | int |
573 | magic_getuvar(sv, mg) |
574 | SV *sv; |
575 | MAGIC *mg; |
576 | { |
577 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
578 | |
579 | if (uf && uf->uf_val) |
580 | (*uf->uf_val)(uf->uf_index, sv); |
581 | return 0; |
582 | } |
583 | |
584 | int |
585 | magic_setenv(sv,mg) |
586 | SV* sv; |
587 | MAGIC* mg; |
588 | { |
589 | register char *s; |
88e89b8a |
590 | char *ptr; |
a0d0e21e |
591 | STRLEN len; |
592 | I32 i; |
593 | s = SvPV(sv,len); |
188ea221 |
594 | ptr = MgPV(mg); |
88e89b8a |
595 | my_setenv(ptr, s); |
a0d0e21e |
596 | #ifdef DYNAMIC_ENV_FETCH |
597 | /* We just undefd an environment var. Is a replacement */ |
598 | /* waiting in the wings? */ |
599 | if (!len) { |
88e89b8a |
600 | HE *envhe; |
188ea221 |
601 | SV *keysv; |
602 | if (mg->mg_len == HEf_SVKEY) keysv = (SV *)mg->mg_ptr; |
603 | else keysv = newSVpv(mg->mg_ptr,mg->mg_len); |
604 | if (envhe = hv_fetch_ent(GvHVn(envgv),keysv,FALSE,0)) |
88e89b8a |
605 | s = SvPV(HeVAL(envhe),len); |
188ea221 |
606 | if (mg->mg_len != HEf_SVKEY) SvREFCNT_dec(keysv); |
a0d0e21e |
607 | } |
608 | #endif |
79072805 |
609 | /* And you'll never guess what the dog had */ |
610 | /* in its mouth... */ |
463ee0b2 |
611 | if (tainting) { |
88e89b8a |
612 | if (s && strEQ(ptr,"PATH")) { |
a0d0e21e |
613 | char *strend = s + len; |
463ee0b2 |
614 | |
615 | while (s < strend) { |
616 | s = cpytill(tokenbuf,s,strend,':',&i); |
617 | s++; |
618 | if (*tokenbuf != '/' |
a0d0e21e |
619 | || (Stat(tokenbuf,&statbuf) && (statbuf.st_mode & 2)) ) |
8990e307 |
620 | MgTAINTEDDIR_on(mg); |
463ee0b2 |
621 | } |
79072805 |
622 | } |
623 | } |
79072805 |
624 | return 0; |
625 | } |
626 | |
627 | int |
85e6fe83 |
628 | magic_clearenv(sv,mg) |
629 | SV* sv; |
630 | MAGIC* mg; |
631 | { |
188ea221 |
632 | my_setenv(MgPV(mg),Nullch); |
85e6fe83 |
633 | return 0; |
634 | } |
635 | |
88e89b8a |
636 | int |
637 | magic_getsig(sv,mg) |
638 | SV* sv; |
639 | MAGIC* mg; |
640 | { |
641 | I32 i; |
642 | /* Are we fetching a signal entry? */ |
188ea221 |
643 | i = whichsig(MgPV(mg)); |
88e89b8a |
644 | if (i) { |
645 | if(psig_ptr[i]) |
646 | sv_setsv(sv,psig_ptr[i]); |
647 | else { |
ff68c719 |
648 | Sighandler_t sigstate = rsignal_state(i); |
649 | |
88e89b8a |
650 | /* cache state so we don't fetch it again */ |
ff68c719 |
651 | if(sigstate == SIG_IGN) |
88e89b8a |
652 | sv_setpv(sv,"IGNORE"); |
653 | else |
654 | sv_setsv(sv,&sv_undef); |
655 | psig_ptr[i] = SvREFCNT_inc(sv); |
656 | SvTEMP_off(sv); |
657 | } |
658 | } |
659 | return 0; |
660 | } |
661 | int |
662 | magic_clearsig(sv,mg) |
663 | SV* sv; |
664 | MAGIC* mg; |
665 | { |
666 | I32 i; |
667 | /* Are we clearing a signal entry? */ |
188ea221 |
668 | i = whichsig(MgPV(mg)); |
88e89b8a |
669 | if (i) { |
670 | if(psig_ptr[i]) { |
671 | SvREFCNT_dec(psig_ptr[i]); |
672 | psig_ptr[i]=0; |
673 | } |
674 | if(psig_name[i]) { |
675 | SvREFCNT_dec(psig_name[i]); |
676 | psig_name[i]=0; |
677 | } |
678 | } |
679 | return 0; |
680 | } |
3d37d572 |
681 | |
85e6fe83 |
682 | int |
79072805 |
683 | magic_setsig(sv,mg) |
684 | SV* sv; |
685 | MAGIC* mg; |
686 | { |
687 | register char *s; |
688 | I32 i; |
748a9306 |
689 | SV** svp; |
a0d0e21e |
690 | |
188ea221 |
691 | s = MgPV(mg); |
748a9306 |
692 | if (*s == '_') { |
693 | if (strEQ(s,"__DIE__")) |
694 | svp = &diehook; |
695 | else if (strEQ(s,"__WARN__")) |
696 | svp = &warnhook; |
697 | else if (strEQ(s,"__PARSE__")) |
698 | svp = &parsehook; |
699 | else |
700 | croak("No such hook: %s", s); |
701 | i = 0; |
4633a7c4 |
702 | if (*svp) { |
703 | SvREFCNT_dec(*svp); |
704 | *svp = 0; |
705 | } |
748a9306 |
706 | } |
707 | else { |
708 | i = whichsig(s); /* ...no, a brick */ |
709 | if (!i) { |
710 | if (dowarn || strEQ(s,"ALARM")) |
711 | warn("No such signal: SIG%s", s); |
712 | return 0; |
713 | } |
88e89b8a |
714 | if(psig_ptr[i]) |
715 | SvREFCNT_dec(psig_ptr[i]); |
716 | psig_ptr[i] = SvREFCNT_inc(sv); |
717 | if(psig_name[i]) |
718 | SvREFCNT_dec(psig_name[i]); |
8646b087 |
719 | psig_name[i] = newSVpv(s,strlen(s)); |
88e89b8a |
720 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
721 | SvREADONLY_on(psig_name[i]); |
748a9306 |
722 | } |
a0d0e21e |
723 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 |
724 | if (i) |
ff68c719 |
725 | (void)rsignal(i, sighandler); |
748a9306 |
726 | else |
727 | *svp = SvREFCNT_inc(sv); |
a0d0e21e |
728 | return 0; |
729 | } |
730 | s = SvPV_force(sv,na); |
748a9306 |
731 | if (strEQ(s,"IGNORE")) { |
732 | if (i) |
ff68c719 |
733 | (void)rsignal(i, SIG_IGN); |
748a9306 |
734 | else |
735 | *svp = 0; |
736 | } |
737 | else if (strEQ(s,"DEFAULT") || !*s) { |
738 | if (i) |
ff68c719 |
739 | (void)rsignal(i, SIG_DFL); |
748a9306 |
740 | else |
741 | *svp = 0; |
742 | } |
79072805 |
743 | else { |
760ac839 |
744 | if(hints & HINT_STRICT_REFS) |
745 | die(no_symref,s,"a subroutine"); |
2304df62 |
746 | if (!strchr(s,':') && !strchr(s,'\'')) { |
747 | sprintf(tokenbuf, "main::%s",s); |
79072805 |
748 | sv_setpv(sv,tokenbuf); |
749 | } |
748a9306 |
750 | if (i) |
ff68c719 |
751 | (void)rsignal(i, sighandler); |
748a9306 |
752 | else |
753 | *svp = SvREFCNT_inc(sv); |
79072805 |
754 | } |
755 | return 0; |
756 | } |
757 | |
758 | int |
463ee0b2 |
759 | magic_setisa(sv,mg) |
79072805 |
760 | SV* sv; |
761 | MAGIC* mg; |
762 | { |
463ee0b2 |
763 | sub_generation++; |
764 | return 0; |
765 | } |
766 | |
a0d0e21e |
767 | #ifdef OVERLOAD |
768 | |
463ee0b2 |
769 | int |
a0d0e21e |
770 | magic_setamagic(sv,mg) |
463ee0b2 |
771 | SV* sv; |
772 | MAGIC* mg; |
773 | { |
a0d0e21e |
774 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
775 | amagic_generation++; |
463ee0b2 |
776 | |
a0d0e21e |
777 | return 0; |
778 | } |
779 | #endif /* OVERLOAD */ |
463ee0b2 |
780 | |
946ec16e |
781 | int |
782 | magic_setnkeys(sv,mg) |
783 | SV* sv; |
784 | MAGIC* mg; |
785 | { |
786 | if (LvTARG(sv)) { |
787 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); |
788 | LvTARG(sv) = Nullsv; /* Don't allow a ref to reassign this. */ |
789 | } |
790 | return 0; |
791 | } |
792 | |
a0d0e21e |
793 | static int |
794 | magic_methpack(sv,mg,meth) |
795 | SV* sv; |
796 | MAGIC* mg; |
797 | char *meth; |
798 | { |
799 | dSP; |
463ee0b2 |
800 | |
a0d0e21e |
801 | ENTER; |
802 | SAVETMPS; |
803 | PUSHMARK(sp); |
804 | EXTEND(sp, 2); |
805 | PUSHs(mg->mg_obj); |
88e89b8a |
806 | if (mg->mg_ptr) { |
807 | if (mg->mg_len >= 0) |
808 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
809 | else if (mg->mg_len == HEf_SVKEY) |
810 | PUSHs((SV*)mg->mg_ptr); |
811 | } |
a0d0e21e |
812 | else if (mg->mg_type == 'p') |
813 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
463ee0b2 |
814 | PUTBACK; |
815 | |
a0d0e21e |
816 | if (perl_call_method(meth, G_SCALAR)) |
817 | sv_setsv(sv, *stack_sp--); |
463ee0b2 |
818 | |
a0d0e21e |
819 | FREETMPS; |
820 | LEAVE; |
821 | return 0; |
822 | } |
463ee0b2 |
823 | |
a0d0e21e |
824 | int |
825 | magic_getpack(sv,mg) |
826 | SV* sv; |
827 | MAGIC* mg; |
828 | { |
829 | magic_methpack(sv,mg,"FETCH"); |
830 | if (mg->mg_ptr) |
831 | mg->mg_flags |= MGf_GSKIP; |
463ee0b2 |
832 | return 0; |
833 | } |
834 | |
835 | int |
836 | magic_setpack(sv,mg) |
837 | SV* sv; |
838 | MAGIC* mg; |
839 | { |
463ee0b2 |
840 | dSP; |
463ee0b2 |
841 | |
a0d0e21e |
842 | PUSHMARK(sp); |
843 | EXTEND(sp, 3); |
844 | PUSHs(mg->mg_obj); |
88e89b8a |
845 | if (mg->mg_ptr) { |
846 | if (mg->mg_len >= 0) |
847 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
848 | else if (mg->mg_len == HEf_SVKEY) |
849 | PUSHs((SV*)mg->mg_ptr); |
850 | } |
a0d0e21e |
851 | else if (mg->mg_type == 'p') |
852 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
463ee0b2 |
853 | PUSHs(sv); |
854 | PUTBACK; |
855 | |
a0d0e21e |
856 | perl_call_method("STORE", G_SCALAR|G_DISCARD); |
463ee0b2 |
857 | |
858 | return 0; |
859 | } |
860 | |
861 | int |
862 | magic_clearpack(sv,mg) |
863 | SV* sv; |
864 | MAGIC* mg; |
865 | { |
a0d0e21e |
866 | return magic_methpack(sv,mg,"DELETE"); |
867 | } |
463ee0b2 |
868 | |
a0d0e21e |
869 | int magic_wipepack(sv,mg) |
870 | SV* sv; |
871 | MAGIC* mg; |
872 | { |
873 | dSP; |
463ee0b2 |
874 | |
a0d0e21e |
875 | PUSHMARK(sp); |
876 | XPUSHs(mg->mg_obj); |
463ee0b2 |
877 | PUTBACK; |
463ee0b2 |
878 | |
a0d0e21e |
879 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
463ee0b2 |
880 | |
881 | return 0; |
882 | } |
883 | |
884 | int |
885 | magic_nextpack(sv,mg,key) |
886 | SV* sv; |
887 | MAGIC* mg; |
888 | SV* key; |
889 | { |
463ee0b2 |
890 | dSP; |
a0d0e21e |
891 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 |
892 | |
893 | ENTER; |
a0d0e21e |
894 | SAVETMPS; |
895 | PUSHMARK(sp); |
896 | EXTEND(sp, 2); |
897 | PUSHs(mg->mg_obj); |
463ee0b2 |
898 | if (SvOK(key)) |
899 | PUSHs(key); |
900 | PUTBACK; |
901 | |
a0d0e21e |
902 | if (perl_call_method(meth, G_SCALAR)) |
903 | sv_setsv(key, *stack_sp--); |
463ee0b2 |
904 | |
a0d0e21e |
905 | FREETMPS; |
906 | LEAVE; |
79072805 |
907 | return 0; |
908 | } |
909 | |
910 | int |
a0d0e21e |
911 | magic_existspack(sv,mg) |
912 | SV* sv; |
913 | MAGIC* mg; |
914 | { |
915 | return magic_methpack(sv,mg,"EXISTS"); |
916 | } |
917 | |
918 | int |
79072805 |
919 | magic_setdbline(sv,mg) |
920 | SV* sv; |
921 | MAGIC* mg; |
922 | { |
923 | OP *o; |
924 | I32 i; |
925 | GV* gv; |
926 | SV** svp; |
927 | |
928 | gv = DBline; |
929 | i = SvTRUE(sv); |
188ea221 |
930 | svp = av_fetch(GvAV(gv), |
931 | atoi(MgPV(mg)), FALSE); |
8990e307 |
932 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 |
933 | o->op_private = i; |
79072805 |
934 | else |
935 | warn("Can't break at that line\n"); |
936 | return 0; |
937 | } |
938 | |
939 | int |
940 | magic_getarylen(sv,mg) |
941 | SV* sv; |
942 | MAGIC* mg; |
943 | { |
a0d0e21e |
944 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 |
945 | return 0; |
946 | } |
947 | |
948 | int |
949 | magic_setarylen(sv,mg) |
950 | SV* sv; |
951 | MAGIC* mg; |
952 | { |
a0d0e21e |
953 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
954 | return 0; |
955 | } |
956 | |
957 | int |
958 | magic_getpos(sv,mg) |
959 | SV* sv; |
960 | MAGIC* mg; |
961 | { |
962 | SV* lsv = LvTARG(sv); |
963 | |
964 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
965 | mg = mg_find(lsv, 'g'); |
966 | if (mg && mg->mg_len >= 0) { |
967 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); |
968 | return 0; |
969 | } |
970 | } |
971 | (void)SvOK_off(sv); |
972 | return 0; |
973 | } |
974 | |
975 | int |
976 | magic_setpos(sv,mg) |
977 | SV* sv; |
978 | MAGIC* mg; |
979 | { |
980 | SV* lsv = LvTARG(sv); |
981 | SSize_t pos; |
982 | STRLEN len; |
983 | |
984 | mg = 0; |
985 | |
986 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
987 | mg = mg_find(lsv, 'g'); |
988 | if (!mg) { |
989 | if (!SvOK(sv)) |
990 | return 0; |
991 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); |
992 | mg = mg_find(lsv, 'g'); |
993 | } |
994 | else if (!SvOK(sv)) { |
995 | mg->mg_len = -1; |
996 | return 0; |
997 | } |
998 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); |
999 | |
1000 | pos = SvIV(sv) - curcop->cop_arybase; |
1001 | if (pos < 0) { |
1002 | pos += len; |
1003 | if (pos < 0) |
1004 | pos = 0; |
1005 | } |
1006 | else if (pos > len) |
1007 | pos = len; |
1008 | mg->mg_len = pos; |
71be2cbc |
1009 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e |
1010 | |
79072805 |
1011 | return 0; |
1012 | } |
1013 | |
1014 | int |
1015 | magic_getglob(sv,mg) |
1016 | SV* sv; |
1017 | MAGIC* mg; |
1018 | { |
8646b087 |
1019 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1020 | SvFAKE_off(sv); |
946ec16e |
1021 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 |
1022 | SvFAKE_on(sv); |
1023 | } |
1024 | else |
946ec16e |
1025 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 |
1026 | return 0; |
1027 | } |
1028 | |
1029 | int |
1030 | magic_setglob(sv,mg) |
1031 | SV* sv; |
1032 | MAGIC* mg; |
1033 | { |
1034 | register char *s; |
1035 | GV* gv; |
1036 | |
1037 | if (!SvOK(sv)) |
1038 | return 0; |
463ee0b2 |
1039 | s = SvPV(sv, na); |
79072805 |
1040 | if (*s == '*' && s[1]) |
1041 | s++; |
85e6fe83 |
1042 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 |
1043 | if (sv == (SV*)gv) |
1044 | return 0; |
1045 | if (GvGP(sv)) |
88e89b8a |
1046 | gp_free((GV*)sv); |
79072805 |
1047 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 |
1048 | return 0; |
1049 | } |
1050 | |
1051 | int |
1052 | magic_setsubstr(sv,mg) |
1053 | SV* sv; |
1054 | MAGIC* mg; |
1055 | { |
8990e307 |
1056 | STRLEN len; |
1057 | char *tmps = SvPV(sv,len); |
1058 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); |
79072805 |
1059 | return 0; |
1060 | } |
1061 | |
1062 | int |
463ee0b2 |
1063 | magic_gettaint(sv,mg) |
1064 | SV* sv; |
1065 | MAGIC* mg; |
1066 | { |
bbce6d69 |
1067 | TAINT_IF((mg->mg_len & 1) || |
1068 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ |
463ee0b2 |
1069 | return 0; |
1070 | } |
1071 | |
1072 | int |
1073 | magic_settaint(sv,mg) |
1074 | SV* sv; |
1075 | MAGIC* mg; |
1076 | { |
748a9306 |
1077 | if (localizing) { |
1078 | if (localizing == 1) |
1079 | mg->mg_len <<= 1; |
1080 | else |
1081 | mg->mg_len >>= 1; |
a0d0e21e |
1082 | } |
748a9306 |
1083 | else if (tainted) |
1084 | mg->mg_len |= 1; |
1085 | else |
1086 | mg->mg_len &= ~1; |
463ee0b2 |
1087 | return 0; |
1088 | } |
1089 | |
1090 | int |
79072805 |
1091 | magic_setvec(sv,mg) |
1092 | SV* sv; |
1093 | MAGIC* mg; |
1094 | { |
1095 | do_vecset(sv); /* XXX slurp this routine */ |
1096 | return 0; |
1097 | } |
1098 | |
1099 | int |
71be2cbc |
1100 | magic_getitervar(sv,mg) |
5f05dabc |
1101 | SV* sv; |
1102 | MAGIC* mg; |
1103 | { |
71be2cbc |
1104 | SV *targ = Nullsv; |
5f05dabc |
1105 | if (LvTARGLEN(sv)) { |
1106 | AV* av = (AV*)LvTARG(sv); |
71be2cbc |
1107 | if (LvTARGOFF(sv) <= AvFILL(av)) |
1108 | targ = AvARRAY(av)[LvTARGOFF(sv)]; |
5f05dabc |
1109 | } |
71be2cbc |
1110 | else |
1111 | targ = LvTARG(sv); |
1112 | sv_setsv(sv, targ ? targ : &sv_undef); |
1113 | return 0; |
1114 | } |
1115 | |
1116 | int |
1117 | magic_setitervar(sv,mg) |
1118 | SV* sv; |
1119 | MAGIC* mg; |
1120 | { |
1121 | if (LvTARGLEN(sv)) |
1122 | vivify_itervar(sv); |
5f05dabc |
1123 | if (LvTARG(sv)) |
1124 | sv_setsv(LvTARG(sv), sv); |
1125 | return 0; |
1126 | } |
1127 | |
1128 | int |
71be2cbc |
1129 | magic_freeitervar(sv,mg) |
5f05dabc |
1130 | SV* sv; |
1131 | MAGIC* mg; |
1132 | { |
1133 | SvREFCNT_dec(LvTARG(sv)); |
71be2cbc |
1134 | return 0; |
1135 | } |
1136 | |
1137 | void |
1138 | vivify_itervar(sv) |
1139 | SV* sv; |
1140 | { |
1141 | AV* av; |
1142 | |
1143 | if (!LvTARGLEN(sv)) |
1144 | return; |
1145 | av = (AV*)LvTARG(sv); |
1146 | if (LvTARGOFF(sv) <= AvFILL(av)) { |
1147 | SV** svp = AvARRAY(av) + LvTARGOFF(sv); |
1148 | LvTARG(sv) = newSVsv(*svp); |
1149 | SvREFCNT_dec(*svp); |
1150 | *svp = SvREFCNT_inc(LvTARG(sv)); |
1151 | } |
1152 | else |
1153 | LvTARG(sv) = Nullsv; |
1154 | SvREFCNT_dec(av); |
1155 | LvTARGLEN(sv) = 0; |
5f05dabc |
1156 | } |
1157 | |
1158 | int |
93a17b20 |
1159 | magic_setmglob(sv,mg) |
1160 | SV* sv; |
1161 | MAGIC* mg; |
1162 | { |
a0d0e21e |
1163 | mg->mg_len = -1; |
c6496cc7 |
1164 | SvSCREAM_off(sv); |
93a17b20 |
1165 | return 0; |
1166 | } |
1167 | |
1168 | int |
79072805 |
1169 | magic_setbm(sv,mg) |
1170 | SV* sv; |
1171 | MAGIC* mg; |
1172 | { |
463ee0b2 |
1173 | sv_unmagic(sv, 'B'); |
79072805 |
1174 | SvVALID_off(sv); |
1175 | return 0; |
1176 | } |
1177 | |
1178 | int |
55497cff |
1179 | magic_setfm(sv,mg) |
1180 | SV* sv; |
1181 | MAGIC* mg; |
1182 | { |
1183 | sv_unmagic(sv, 'f'); |
1184 | SvCOMPILED_off(sv); |
1185 | return 0; |
1186 | } |
1187 | |
1188 | int |
79072805 |
1189 | magic_setuvar(sv,mg) |
1190 | SV* sv; |
1191 | MAGIC* mg; |
1192 | { |
1193 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
1194 | |
1195 | if (uf && uf->uf_set) |
1196 | (*uf->uf_set)(uf->uf_index, sv); |
1197 | return 0; |
1198 | } |
1199 | |
7a4c00b4 |
1200 | #ifdef USE_LOCALE_COLLATE |
79072805 |
1201 | int |
bbce6d69 |
1202 | magic_setcollxfrm(sv,mg) |
1203 | SV* sv; |
1204 | MAGIC* mg; |
1205 | { |
1206 | /* |
1207 | * René Descartes said "I think not." |
1208 | * and vanished with a faint plop. |
1209 | */ |
7a4c00b4 |
1210 | if (mg->mg_ptr) { |
1211 | Safefree(mg->mg_ptr); |
1212 | mg->mg_ptr = NULL; |
1213 | mg->mg_len = -1; |
1214 | } |
bbce6d69 |
1215 | return 0; |
1216 | } |
7a4c00b4 |
1217 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
1218 | |
1219 | int |
79072805 |
1220 | magic_set(sv,mg) |
1221 | SV* sv; |
1222 | MAGIC* mg; |
1223 | { |
1224 | register char *s; |
1225 | I32 i; |
8990e307 |
1226 | STRLEN len; |
79072805 |
1227 | switch (*mg->mg_ptr) { |
748a9306 |
1228 | case '\001': /* ^A */ |
1229 | sv_setsv(bodytarget, sv); |
1230 | break; |
79072805 |
1231 | case '\004': /* ^D */ |
8990e307 |
1232 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 |
1233 | DEBUG_x(dump_all()); |
1234 | break; |
28f23441 |
1235 | case '\005': /* ^E */ |
1236 | #ifdef VMS |
1237 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1238 | #else |
f86702cc |
1239 | /* will anyone ever use this? */ |
1240 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); |
28f23441 |
1241 | #endif |
1242 | break; |
79072805 |
1243 | case '\006': /* ^F */ |
463ee0b2 |
1244 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1245 | break; |
a0d0e21e |
1246 | case '\010': /* ^H */ |
1247 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1248 | break; |
79072805 |
1249 | case '\t': /* ^I */ |
1250 | if (inplace) |
1251 | Safefree(inplace); |
1252 | if (SvOK(sv)) |
a0d0e21e |
1253 | inplace = savepv(SvPV(sv,na)); |
79072805 |
1254 | else |
1255 | inplace = Nullch; |
1256 | break; |
28f23441 |
1257 | case '\017': /* ^O */ |
1258 | if (osname) |
1259 | Safefree(osname); |
1260 | if (SvOK(sv)) |
1261 | osname = savepv(SvPV(sv,na)); |
1262 | else |
1263 | osname = Nullch; |
1264 | break; |
79072805 |
1265 | case '\020': /* ^P */ |
463ee0b2 |
1266 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1267 | if (i != perldb) { |
1268 | if (perldb) |
1269 | oldlastpm = curpm; |
1270 | else |
1271 | curpm = oldlastpm; |
1272 | } |
1273 | perldb = i; |
1274 | break; |
f86702cc |
1275 | case '\023': /* ^S */ |
1276 | STATUS_NATIVE_SET(SvIOK(sv) ? SvUVX(sv) : sv_2uv(sv)); |
1277 | break; |
79072805 |
1278 | case '\024': /* ^T */ |
88e89b8a |
1279 | #ifdef BIG_TIME |
1280 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
1281 | #else |
85e6fe83 |
1282 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a |
1283 | #endif |
79072805 |
1284 | break; |
1285 | case '\027': /* ^W */ |
463ee0b2 |
1286 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1287 | break; |
1288 | case '.': |
748a9306 |
1289 | if (localizing) { |
1290 | if (localizing == 1) |
1291 | save_sptr((SV**)&last_in_gv); |
1292 | } |
88e89b8a |
1293 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e |
1294 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 |
1295 | break; |
1296 | case '^': |
a0d0e21e |
1297 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1298 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); |
1299 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1300 | break; |
1301 | case '~': |
a0d0e21e |
1302 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1303 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); |
1304 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1305 | break; |
1306 | case '=': |
a0d0e21e |
1307 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1308 | break; |
1309 | case '-': |
a0d0e21e |
1310 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1311 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) |
1312 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; |
79072805 |
1313 | break; |
1314 | case '%': |
a0d0e21e |
1315 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1316 | break; |
1317 | case '|': |
a0d0e21e |
1318 | IoFLAGS(GvIOp(defoutgv)) &= ~IOf_FLUSH; |
463ee0b2 |
1319 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) != 0) { |
a0d0e21e |
1320 | IoFLAGS(GvIOp(defoutgv)) |= IOf_FLUSH; |
79072805 |
1321 | } |
1322 | break; |
1323 | case '*': |
463ee0b2 |
1324 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1325 | multiline = (i != 0); |
1326 | break; |
1327 | case '/': |
c07a80fd |
1328 | SvREFCNT_dec(nrs); |
1329 | nrs = newSVsv(sv); |
1330 | SvREFCNT_dec(rs); |
1331 | rs = SvREFCNT_inc(nrs); |
79072805 |
1332 | break; |
1333 | case '\\': |
1334 | if (ors) |
1335 | Safefree(ors); |
e3c19b7b |
1336 | if (SvOK(sv) || SvGMAGICAL(sv)) |
1337 | ors = savepv(SvPV(sv,orslen)); |
1338 | else { |
1339 | ors = Nullch; |
1340 | orslen = 0; |
1341 | } |
79072805 |
1342 | break; |
1343 | case ',': |
1344 | if (ofs) |
1345 | Safefree(ofs); |
a0d0e21e |
1346 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 |
1347 | break; |
1348 | case '#': |
1349 | if (ofmt) |
1350 | Safefree(ofmt); |
a0d0e21e |
1351 | ofmt = savepv(SvPV(sv,na)); |
79072805 |
1352 | break; |
1353 | case '[': |
a0d0e21e |
1354 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1355 | break; |
1356 | case '?': |
f86702cc |
1357 | STATUS_POSIX_SET(SvIOK(sv) ? SvUVX(sv) : sv_2uv(sv)); |
79072805 |
1358 | break; |
1359 | case '!': |
f86702cc |
1360 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), |
1361 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 |
1362 | break; |
1363 | case '<': |
463ee0b2 |
1364 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1365 | if (delaymagic) { |
1366 | delaymagic |= DM_RUID; |
1367 | break; /* don't do magic till later */ |
1368 | } |
1369 | #ifdef HAS_SETRUID |
85e6fe83 |
1370 | (void)setruid((Uid_t)uid); |
79072805 |
1371 | #else |
1372 | #ifdef HAS_SETREUID |
85e6fe83 |
1373 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 |
1374 | #else |
85e6fe83 |
1375 | #ifdef HAS_SETRESUID |
1376 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); |
79072805 |
1377 | #else |
1378 | if (uid == euid) /* special case $< = $> */ |
1379 | (void)setuid(uid); |
a0d0e21e |
1380 | else { |
1381 | uid = (I32)getuid(); |
463ee0b2 |
1382 | croak("setruid() not implemented"); |
a0d0e21e |
1383 | } |
79072805 |
1384 | #endif |
1385 | #endif |
85e6fe83 |
1386 | #endif |
748a9306 |
1387 | uid = (I32)getuid(); |
4633a7c4 |
1388 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1389 | break; |
1390 | case '>': |
463ee0b2 |
1391 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1392 | if (delaymagic) { |
1393 | delaymagic |= DM_EUID; |
1394 | break; /* don't do magic till later */ |
1395 | } |
1396 | #ifdef HAS_SETEUID |
85e6fe83 |
1397 | (void)seteuid((Uid_t)euid); |
79072805 |
1398 | #else |
1399 | #ifdef HAS_SETREUID |
85e6fe83 |
1400 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1401 | #else |
1402 | #ifdef HAS_SETRESUID |
1403 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); |
79072805 |
1404 | #else |
1405 | if (euid == uid) /* special case $> = $< */ |
1406 | setuid(euid); |
a0d0e21e |
1407 | else { |
1408 | euid = (I32)geteuid(); |
463ee0b2 |
1409 | croak("seteuid() not implemented"); |
a0d0e21e |
1410 | } |
79072805 |
1411 | #endif |
1412 | #endif |
85e6fe83 |
1413 | #endif |
79072805 |
1414 | euid = (I32)geteuid(); |
4633a7c4 |
1415 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1416 | break; |
1417 | case '(': |
463ee0b2 |
1418 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1419 | if (delaymagic) { |
1420 | delaymagic |= DM_RGID; |
1421 | break; /* don't do magic till later */ |
1422 | } |
1423 | #ifdef HAS_SETRGID |
85e6fe83 |
1424 | (void)setrgid((Gid_t)gid); |
79072805 |
1425 | #else |
1426 | #ifdef HAS_SETREGID |
85e6fe83 |
1427 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1428 | #else |
1429 | #ifdef HAS_SETRESGID |
1430 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); |
79072805 |
1431 | #else |
1432 | if (gid == egid) /* special case $( = $) */ |
1433 | (void)setgid(gid); |
748a9306 |
1434 | else { |
1435 | gid = (I32)getgid(); |
463ee0b2 |
1436 | croak("setrgid() not implemented"); |
748a9306 |
1437 | } |
79072805 |
1438 | #endif |
1439 | #endif |
85e6fe83 |
1440 | #endif |
79072805 |
1441 | gid = (I32)getgid(); |
4633a7c4 |
1442 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1443 | break; |
1444 | case ')': |
463ee0b2 |
1445 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1446 | if (delaymagic) { |
1447 | delaymagic |= DM_EGID; |
1448 | break; /* don't do magic till later */ |
1449 | } |
1450 | #ifdef HAS_SETEGID |
85e6fe83 |
1451 | (void)setegid((Gid_t)egid); |
79072805 |
1452 | #else |
1453 | #ifdef HAS_SETREGID |
85e6fe83 |
1454 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1455 | #else |
1456 | #ifdef HAS_SETRESGID |
1457 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); |
79072805 |
1458 | #else |
1459 | if (egid == gid) /* special case $) = $( */ |
1460 | (void)setgid(egid); |
748a9306 |
1461 | else { |
1462 | egid = (I32)getegid(); |
463ee0b2 |
1463 | croak("setegid() not implemented"); |
748a9306 |
1464 | } |
79072805 |
1465 | #endif |
1466 | #endif |
85e6fe83 |
1467 | #endif |
79072805 |
1468 | egid = (I32)getegid(); |
4633a7c4 |
1469 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1470 | break; |
1471 | case ':': |
a0d0e21e |
1472 | chopset = SvPV_force(sv,na); |
79072805 |
1473 | break; |
1474 | case '0': |
1475 | if (!origalen) { |
1476 | s = origargv[0]; |
1477 | s += strlen(s); |
1478 | /* See if all the arguments are contiguous in memory */ |
1479 | for (i = 1; i < origargc; i++) { |
1480 | if (origargv[i] == s + 1) |
1481 | s += strlen(++s); /* this one is ok too */ |
1482 | } |
bbce6d69 |
1483 | /* can grab env area too? */ |
1484 | if (origenviron && origenviron[0] == s + 1) { |
79072805 |
1485 | my_setenv("NoNeSuCh", Nullch); |
1486 | /* force copy of environment */ |
1487 | for (i = 0; origenviron[i]; i++) |
1488 | if (origenviron[i] == s + 1) |
1489 | s += strlen(++s); |
1490 | } |
1491 | origalen = s - origargv[0]; |
1492 | } |
a0d0e21e |
1493 | s = SvPV_force(sv,len); |
8990e307 |
1494 | i = len; |
79072805 |
1495 | if (i >= origalen) { |
1496 | i = origalen; |
1497 | SvCUR_set(sv, i); |
1498 | *SvEND(sv) = '\0'; |
1499 | Copy(s, origargv[0], i, char); |
1500 | } |
1501 | else { |
1502 | Copy(s, origargv[0], i, char); |
1503 | s = origargv[0]+i; |
1504 | *s++ = '\0'; |
1505 | while (++i < origalen) |
8990e307 |
1506 | *s++ = ' '; |
1507 | s = origargv[0]+i; |
ed6116ce |
1508 | for (i = 1; i < origargc; i++) |
8990e307 |
1509 | origargv[i] = Nullch; |
79072805 |
1510 | } |
1511 | break; |
1512 | } |
1513 | return 0; |
1514 | } |
1515 | |
1516 | I32 |
1517 | whichsig(sig) |
1518 | char *sig; |
1519 | { |
1520 | register char **sigv; |
1521 | |
1522 | for (sigv = sig_name+1; *sigv; sigv++) |
1523 | if (strEQ(sig,*sigv)) |
8e07c86e |
1524 | return sig_num[sigv - sig_name]; |
79072805 |
1525 | #ifdef SIGCLD |
1526 | if (strEQ(sig,"CHLD")) |
1527 | return SIGCLD; |
1528 | #endif |
1529 | #ifdef SIGCHLD |
1530 | if (strEQ(sig,"CLD")) |
1531 | return SIGCHLD; |
1532 | #endif |
1533 | return 0; |
1534 | } |
1535 | |
ecfc5424 |
1536 | Signal_t |
79072805 |
1537 | sighandler(sig) |
a0d0e21e |
1538 | int sig; |
79072805 |
1539 | { |
1540 | dSP; |
1541 | GV *gv; |
a0d0e21e |
1542 | HV *st; |
79072805 |
1543 | SV *sv; |
1544 | CV *cv; |
79072805 |
1545 | AV *oldstack; |
760ac839 |
1546 | |
1547 | if(!psig_ptr[sig]) |
1548 | die("Signal SIG%s received, but no signal handler set.\n", |
1549 | sig_name[sig]); |
79072805 |
1550 | |
88e89b8a |
1551 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); |
a0d0e21e |
1552 | if (!cv || !CvROOT(cv)) { |
79072805 |
1553 | if (dowarn) |
1554 | warn("SIG%s handler \"%s\" not defined.\n", |
88e89b8a |
1555 | sig_name[sig], GvENAME(gv) ); |
79072805 |
1556 | return; |
1557 | } |
1558 | |
88e89b8a |
1559 | oldstack = curstack; |
1560 | if (curstack != signalstack) |
a0d0e21e |
1561 | AvFILL(signalstack) = 0; |
88e89b8a |
1562 | SWITCHSTACK(curstack, signalstack); |
79072805 |
1563 | |
88e89b8a |
1564 | if(psig_name[sig]) |
1565 | sv = SvREFCNT_inc(psig_name[sig]); |
1566 | else { |
1567 | sv = sv_newmortal(); |
1568 | sv_setpv(sv,sig_name[sig]); |
1569 | } |
a0d0e21e |
1570 | PUSHMARK(sp); |
79072805 |
1571 | PUSHs(sv); |
79072805 |
1572 | PUTBACK; |
a0d0e21e |
1573 | |
1574 | perl_call_sv((SV*)cv, G_DISCARD); |
79072805 |
1575 | |
1576 | SWITCHSTACK(signalstack, oldstack); |
79072805 |
1577 | |
1578 | return; |
1579 | } |