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