Commit | Line | Data |
a0d0e21e |
1 | /* mg.c |
79072805 |
2 | * |
9607fc9c |
3 | * Copyright (c) 1991-1997, Larry Wall |
79072805 |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
7 | * |
a0d0e21e |
8 | */ |
9 | |
10 | /* |
11 | * "Sam sat on the ground and put his head in his hands. 'I wish I had never |
12 | * come here, and I don't want to see no more magic,' he said, and fell silent." |
79072805 |
13 | */ |
14 | |
15 | #include "EXTERN.h" |
16 | #include "perl.h" |
17 | |
e6d9441c |
18 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e |
19 | #ifdef I_UNISTD |
20 | # include <unistd.h> |
21 | #endif |
a0d0e21e |
22 | |
5cd24f17 |
23 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 |
24 | # ifndef NGROUPS |
25 | # define NGROUPS 32 |
26 | # endif |
27 | #endif |
28 | |
c07a80fd |
29 | /* |
30 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. |
31 | */ |
32 | |
33 | struct magic_state { |
34 | SV* mgs_sv; |
35 | U32 mgs_flags; |
36 | }; |
37 | typedef struct magic_state MGS; |
38 | |
39 | static void restore_magic _((void *p)); |
40 | |
48e43a1c |
41 | static void |
8ac85365 |
42 | save_magic(MGS *mgs, SV *sv) |
c07a80fd |
43 | { |
c07a80fd |
44 | assert(SvMAGICAL(sv)); |
45 | |
c07a80fd |
46 | mgs->mgs_sv = sv; |
47 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); |
48 | SAVEDESTRUCTOR(restore_magic, mgs); |
49 | |
50 | SvMAGICAL_off(sv); |
51 | SvREADONLY_off(sv); |
52 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd |
53 | } |
54 | |
55 | static void |
8ac85365 |
56 | restore_magic(void *p) |
c07a80fd |
57 | { |
48e43a1c |
58 | MGS* mgs = (MGS*)p; |
c07a80fd |
59 | SV* sv = mgs->mgs_sv; |
60 | |
61 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
62 | { |
63 | if (mgs->mgs_flags) |
64 | SvFLAGS(sv) |= mgs->mgs_flags; |
65 | else |
66 | mg_magical(sv); |
67 | if (SvGMAGICAL(sv)) |
68 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
69 | } |
c07a80fd |
70 | } |
71 | |
8e07c86e |
72 | |
8990e307 |
73 | void |
8ac85365 |
74 | mg_magical(SV *sv) |
8990e307 |
75 | { |
76 | MAGIC* mg; |
77 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
78 | MGVTBL* vtbl = mg->mg_virtual; |
79 | if (vtbl) { |
a0d0e21e |
80 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 |
81 | SvGMAGICAL_on(sv); |
82 | if (vtbl->svt_set) |
83 | SvSMAGICAL_on(sv); |
84 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
85 | SvRMAGICAL_on(sv); |
86 | } |
87 | } |
88 | } |
89 | |
79072805 |
90 | int |
8ac85365 |
91 | mg_get(SV *sv) |
79072805 |
92 | { |
48e43a1c |
93 | MGS mgs; |
79072805 |
94 | MAGIC* mg; |
c6496cc7 |
95 | MAGIC** mgp; |
760ac839 |
96 | int mgp_valid = 0; |
463ee0b2 |
97 | |
c07a80fd |
98 | ENTER; |
48e43a1c |
99 | save_magic(&mgs, sv); |
463ee0b2 |
100 | |
c6496cc7 |
101 | mgp = &SvMAGIC(sv); |
102 | while ((mg = *mgp) != 0) { |
79072805 |
103 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
104 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
79072805 |
105 | (*vtbl->svt_get)(sv, mg); |
c6496cc7 |
106 | /* Ignore this magic if it's been deleted */ |
48e43a1c |
107 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
108 | (mg->mg_flags & MGf_GSKIP)) |
109 | mgs.mgs_flags = 0; |
a0d0e21e |
110 | } |
c6496cc7 |
111 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 |
112 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 |
113 | mgp = &mg->mg_moremagic; |
760ac839 |
114 | mgp_valid = 1; |
115 | } |
116 | else |
117 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ |
79072805 |
118 | } |
463ee0b2 |
119 | |
c07a80fd |
120 | LEAVE; |
79072805 |
121 | return 0; |
122 | } |
123 | |
124 | int |
8ac85365 |
125 | mg_set(SV *sv) |
79072805 |
126 | { |
48e43a1c |
127 | MGS mgs; |
79072805 |
128 | MAGIC* mg; |
463ee0b2 |
129 | MAGIC* nextmg; |
130 | |
c07a80fd |
131 | ENTER; |
48e43a1c |
132 | save_magic(&mgs, sv); |
463ee0b2 |
133 | |
134 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { |
79072805 |
135 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 |
136 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e |
137 | if (mg->mg_flags & MGf_GSKIP) { |
138 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ |
48e43a1c |
139 | mgs.mgs_flags = 0; |
a0d0e21e |
140 | } |
79072805 |
141 | if (vtbl && vtbl->svt_set) |
142 | (*vtbl->svt_set)(sv, mg); |
143 | } |
463ee0b2 |
144 | |
c07a80fd |
145 | LEAVE; |
79072805 |
146 | return 0; |
147 | } |
148 | |
149 | U32 |
8ac85365 |
150 | mg_len(SV *sv) |
79072805 |
151 | { |
152 | MAGIC* mg; |
748a9306 |
153 | char *junk; |
463ee0b2 |
154 | STRLEN len; |
463ee0b2 |
155 | |
79072805 |
156 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
157 | MGVTBL* vtbl = mg->mg_virtual; |
85e6fe83 |
158 | if (vtbl && vtbl->svt_len) { |
48e43a1c |
159 | MGS mgs; |
160 | |
c07a80fd |
161 | ENTER; |
48e43a1c |
162 | save_magic(&mgs, sv); |
a0d0e21e |
163 | /* omit MGf_GSKIP -- not changed here */ |
85e6fe83 |
164 | len = (*vtbl->svt_len)(sv, mg); |
c07a80fd |
165 | LEAVE; |
85e6fe83 |
166 | return len; |
167 | } |
168 | } |
169 | |
748a9306 |
170 | junk = SvPV(sv, len); |
463ee0b2 |
171 | return len; |
79072805 |
172 | } |
173 | |
174 | int |
8ac85365 |
175 | mg_clear(SV *sv) |
79072805 |
176 | { |
48e43a1c |
177 | MGS mgs; |
79072805 |
178 | MAGIC* mg; |
463ee0b2 |
179 | |
c07a80fd |
180 | ENTER; |
48e43a1c |
181 | save_magic(&mgs, sv); |
463ee0b2 |
182 | |
79072805 |
183 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
184 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
185 | /* omit GSKIP -- never set here */ |
186 | |
79072805 |
187 | if (vtbl && vtbl->svt_clear) |
188 | (*vtbl->svt_clear)(sv, mg); |
189 | } |
463ee0b2 |
190 | |
c07a80fd |
191 | LEAVE; |
79072805 |
192 | return 0; |
193 | } |
194 | |
93a17b20 |
195 | MAGIC* |
8ac85365 |
196 | mg_find(SV *sv, int type) |
93a17b20 |
197 | { |
198 | MAGIC* mg; |
93a17b20 |
199 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
200 | if (mg->mg_type == type) |
201 | return mg; |
202 | } |
203 | return 0; |
204 | } |
205 | |
79072805 |
206 | int |
8ac85365 |
207 | mg_copy(SV *sv, SV *nsv, char *key, I32 klen) |
79072805 |
208 | { |
463ee0b2 |
209 | int count = 0; |
79072805 |
210 | MAGIC* mg; |
463ee0b2 |
211 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
212 | if (isUPPER(mg->mg_type)) { |
a0d0e21e |
213 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 |
214 | count++; |
79072805 |
215 | } |
79072805 |
216 | } |
463ee0b2 |
217 | return count; |
79072805 |
218 | } |
219 | |
220 | int |
8ac85365 |
221 | mg_free(SV *sv) |
79072805 |
222 | { |
223 | MAGIC* mg; |
224 | MAGIC* moremagic; |
225 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { |
226 | MGVTBL* vtbl = mg->mg_virtual; |
227 | moremagic = mg->mg_moremagic; |
228 | if (vtbl && vtbl->svt_free) |
229 | (*vtbl->svt_free)(sv, mg); |
93a17b20 |
230 | if (mg->mg_ptr && mg->mg_type != 'g') |
88e89b8a |
231 | if (mg->mg_len >= 0) |
232 | Safefree(mg->mg_ptr); |
233 | else if (mg->mg_len == HEf_SVKEY) |
234 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 |
235 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 |
236 | SvREFCNT_dec(mg->mg_obj); |
79072805 |
237 | Safefree(mg); |
238 | } |
239 | SvMAGIC(sv) = 0; |
240 | return 0; |
241 | } |
242 | |
243 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
244 | #include <signal.h> |
245 | #endif |
246 | |
93a17b20 |
247 | U32 |
8ac85365 |
248 | magic_len(SV *sv, MAGIC *mg) |
93a17b20 |
249 | { |
250 | register I32 paren; |
251 | register char *s; |
252 | register I32 i; |
bbce6d69 |
253 | register REGEXP *rx; |
748a9306 |
254 | char *t; |
93a17b20 |
255 | |
256 | switch (*mg->mg_ptr) { |
257 | case '1': case '2': case '3': case '4': |
258 | case '5': case '6': case '7': case '8': case '9': case '&': |
bbce6d69 |
259 | if (curpm && (rx = curpm->op_pmregexp)) { |
93a17b20 |
260 | paren = atoi(mg->mg_ptr); |
261 | getparen: |
bbce6d69 |
262 | if (paren <= rx->nparens && |
263 | (s = rx->startp[paren]) && |
264 | (t = rx->endp[paren])) |
265 | { |
748a9306 |
266 | i = t - s; |
71be2cbc |
267 | if (i >= 0) |
93a17b20 |
268 | return i; |
93a17b20 |
269 | } |
93a17b20 |
270 | } |
748a9306 |
271 | return 0; |
93a17b20 |
272 | case '+': |
bbce6d69 |
273 | if (curpm && (rx = curpm->op_pmregexp)) { |
274 | paren = rx->lastparen; |
13f57bf8 |
275 | if (paren) |
276 | goto getparen; |
93a17b20 |
277 | } |
748a9306 |
278 | return 0; |
93a17b20 |
279 | case '`': |
bbce6d69 |
280 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
281 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 |
282 | i = rx->startp[0] - s; |
71be2cbc |
283 | if (i >= 0) |
93a17b20 |
284 | return i; |
93a17b20 |
285 | } |
93a17b20 |
286 | } |
748a9306 |
287 | return 0; |
93a17b20 |
288 | case '\'': |
bbce6d69 |
289 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
290 | if (rx->subend && (s = rx->endp[0])) { |
291 | i = rx->subend - s; |
292 | if (i >= 0) |
5cd24f17 |
293 | return i; |
93a17b20 |
294 | } |
93a17b20 |
295 | } |
748a9306 |
296 | return 0; |
93a17b20 |
297 | case ',': |
298 | return (STRLEN)ofslen; |
299 | case '\\': |
300 | return (STRLEN)orslen; |
301 | } |
302 | magic_get(sv,mg); |
303 | if (!SvPOK(sv) && SvNIOK(sv)) |
463ee0b2 |
304 | sv_2pv(sv, &na); |
93a17b20 |
305 | if (SvPOK(sv)) |
306 | return SvCUR(sv); |
307 | return 0; |
308 | } |
309 | |
79072805 |
310 | int |
8ac85365 |
311 | magic_get(SV *sv, MAGIC *mg) |
79072805 |
312 | { |
313 | register I32 paren; |
314 | register char *s; |
315 | register I32 i; |
bbce6d69 |
316 | register REGEXP *rx; |
748a9306 |
317 | char *t; |
79072805 |
318 | |
319 | switch (*mg->mg_ptr) { |
748a9306 |
320 | case '\001': /* ^A */ |
321 | sv_setsv(sv, bodytarget); |
322 | break; |
79072805 |
323 | case '\004': /* ^D */ |
188ea221 |
324 | sv_setiv(sv, (IV)(debug & 32767)); |
79072805 |
325 | break; |
28f23441 |
326 | case '\005': /* ^E */ |
327 | #ifdef VMS |
328 | { |
329 | # include <descrip.h> |
330 | # include <starlet.h> |
331 | char msg[255]; |
332 | $DESCRIPTOR(msgdsc,msg); |
946ec16e |
333 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 |
334 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
335 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); |
336 | else |
337 | sv_setpv(sv,""); |
338 | } |
339 | #else |
88e89b8a |
340 | #ifdef OS2 |
fb73857a |
341 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
342 | sv_setnv(sv, (double)errno); |
343 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
344 | } else { |
345 | if (errno != errno_isOS2) |
346 | Perl_rc = _syserrno(); |
347 | sv_setnv(sv, (double)Perl_rc); |
348 | sv_setpv(sv, os2error(Perl_rc)); |
349 | } |
88e89b8a |
350 | #else |
946ec16e |
351 | sv_setnv(sv, (double)errno); |
28f23441 |
352 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
353 | #endif |
88e89b8a |
354 | #endif |
946ec16e |
355 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 |
356 | break; |
79072805 |
357 | case '\006': /* ^F */ |
188ea221 |
358 | sv_setiv(sv, (IV)maxsysfd); |
79072805 |
359 | break; |
a0d0e21e |
360 | case '\010': /* ^H */ |
188ea221 |
361 | sv_setiv(sv, (IV)hints); |
a0d0e21e |
362 | break; |
79072805 |
363 | case '\t': /* ^I */ |
364 | if (inplace) |
365 | sv_setpv(sv, inplace); |
366 | else |
188ea221 |
367 | sv_setsv(sv, &sv_undef); |
79072805 |
368 | break; |
28f23441 |
369 | case '\017': /* ^O */ |
188ea221 |
370 | sv_setpv(sv, osname); |
28f23441 |
371 | break; |
79072805 |
372 | case '\020': /* ^P */ |
188ea221 |
373 | sv_setiv(sv, (IV)perldb); |
79072805 |
374 | break; |
fb73857a |
375 | case '\023': /* ^S */ |
d58bf5aa |
376 | { |
377 | dTHR; |
378 | if (lex_state != LEX_NOTPARSING) |
379 | SvOK_off(sv); |
380 | else if (in_eval) |
381 | sv_setiv(sv, 1); |
382 | else |
383 | sv_setiv(sv, 0); |
384 | } |
fb73857a |
385 | break; |
79072805 |
386 | case '\024': /* ^T */ |
88e89b8a |
387 | #ifdef BIG_TIME |
188ea221 |
388 | sv_setnv(sv, basetime); |
88e89b8a |
389 | #else |
188ea221 |
390 | sv_setiv(sv, (IV)basetime); |
88e89b8a |
391 | #endif |
79072805 |
392 | break; |
393 | case '\027': /* ^W */ |
188ea221 |
394 | sv_setiv(sv, (IV)dowarn); |
79072805 |
395 | break; |
396 | case '1': case '2': case '3': case '4': |
397 | case '5': case '6': case '7': case '8': case '9': case '&': |
bbce6d69 |
398 | if (curpm && (rx = curpm->op_pmregexp)) { |
88e89b8a |
399 | paren = atoi(GvENAME((GV*)mg->mg_obj)); |
79072805 |
400 | getparen: |
bbce6d69 |
401 | if (paren <= rx->nparens && |
402 | (s = rx->startp[paren]) && |
403 | (t = rx->endp[paren])) |
404 | { |
748a9306 |
405 | i = t - s; |
13f57bf8 |
406 | getrx: |
748a9306 |
407 | if (i >= 0) { |
13f57bf8 |
408 | bool was_tainted; |
409 | if (tainting) { |
410 | was_tainted = tainted; |
411 | tainted = FALSE; |
412 | } |
79072805 |
413 | sv_setpvn(sv,s,i); |
13f57bf8 |
414 | if (tainting) |
415 | tainted = was_tainted || rx->exec_tainted; |
748a9306 |
416 | break; |
417 | } |
79072805 |
418 | } |
79072805 |
419 | } |
748a9306 |
420 | sv_setsv(sv,&sv_undef); |
79072805 |
421 | break; |
422 | case '+': |
bbce6d69 |
423 | if (curpm && (rx = curpm->op_pmregexp)) { |
424 | paren = rx->lastparen; |
a0d0e21e |
425 | if (paren) |
426 | goto getparen; |
79072805 |
427 | } |
748a9306 |
428 | sv_setsv(sv,&sv_undef); |
79072805 |
429 | break; |
430 | case '`': |
bbce6d69 |
431 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 |
432 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 |
433 | i = rx->startp[0] - s; |
13f57bf8 |
434 | goto getrx; |
79072805 |
435 | } |
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 (rx->subend && (s = rx->endp[0])) { |
442 | i = rx->subend - s; |
443 | goto getrx; |
79072805 |
444 | } |
79072805 |
445 | } |
748a9306 |
446 | sv_setsv(sv,&sv_undef); |
79072805 |
447 | break; |
448 | case '.': |
449 | #ifndef lint |
a0d0e21e |
450 | if (GvIO(last_in_gv)) { |
188ea221 |
451 | sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv))); |
79072805 |
452 | } |
453 | #endif |
454 | break; |
455 | case '?': |
809a5acc |
456 | { |
457 | dTHR; |
458 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 |
459 | #ifdef COMPLEX_STATUS |
809a5acc |
460 | LvTARGOFF(sv) = statusvalue; |
461 | LvTARGLEN(sv) = statusvalue_vms; |
ff0cee69 |
462 | #endif |
809a5acc |
463 | } |
79072805 |
464 | break; |
465 | case '^': |
a0d0e21e |
466 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 |
467 | if (s) |
468 | sv_setpv(sv,s); |
469 | else { |
470 | sv_setpv(sv,GvENAME(defoutgv)); |
471 | sv_catpv(sv,"_TOP"); |
472 | } |
473 | break; |
474 | case '~': |
a0d0e21e |
475 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 |
476 | if (!s) |
477 | s = GvENAME(defoutgv); |
478 | sv_setpv(sv,s); |
479 | break; |
480 | #ifndef lint |
481 | case '=': |
188ea221 |
482 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 |
483 | break; |
484 | case '-': |
188ea221 |
485 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 |
486 | break; |
487 | case '%': |
188ea221 |
488 | sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv))); |
79072805 |
489 | break; |
490 | #endif |
491 | case ':': |
492 | break; |
493 | case '/': |
494 | break; |
495 | case '[': |
0f15f207 |
496 | WITH_THR(sv_setiv(sv, (IV)curcop->cop_arybase)); |
79072805 |
497 | break; |
498 | case '|': |
188ea221 |
499 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 |
500 | break; |
501 | case ',': |
502 | sv_setpvn(sv,ofs,ofslen); |
503 | break; |
504 | case '\\': |
505 | sv_setpvn(sv,ors,orslen); |
506 | break; |
507 | case '#': |
508 | sv_setpv(sv,ofmt); |
509 | break; |
510 | case '!': |
a5f75d66 |
511 | #ifdef VMS |
946ec16e |
512 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a |
513 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 |
514 | #else |
88e89b8a |
515 | { |
516 | int saveerrno = errno; |
946ec16e |
517 | sv_setnv(sv, (double)errno); |
88e89b8a |
518 | #ifdef OS2 |
519 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); |
520 | else |
a5f75d66 |
521 | #endif |
2304df62 |
522 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a |
523 | errno = saveerrno; |
524 | } |
525 | #endif |
946ec16e |
526 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 |
527 | break; |
528 | case '<': |
188ea221 |
529 | sv_setiv(sv, (IV)uid); |
79072805 |
530 | break; |
531 | case '>': |
188ea221 |
532 | sv_setiv(sv, (IV)euid); |
79072805 |
533 | break; |
534 | case '(': |
188ea221 |
535 | sv_setiv(sv, (IV)gid); |
fc36a67e |
536 | sv_setpvf(sv, "%Vd", (IV)gid); |
79072805 |
537 | goto add_groups; |
538 | case ')': |
188ea221 |
539 | sv_setiv(sv, (IV)egid); |
fc36a67e |
540 | sv_setpvf(sv, "%Vd", (IV)egid); |
79072805 |
541 | add_groups: |
79072805 |
542 | #ifdef HAS_GETGROUPS |
79072805 |
543 | { |
a0d0e21e |
544 | Groups_t gary[NGROUPS]; |
79072805 |
545 | i = getgroups(NGROUPS,gary); |
46fc3d4c |
546 | while (--i >= 0) |
fc36a67e |
547 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 |
548 | } |
549 | #endif |
29355cf7 |
550 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 |
551 | break; |
552 | case '*': |
553 | break; |
554 | case '0': |
555 | break; |
556 | } |
a0d0e21e |
557 | return 0; |
79072805 |
558 | } |
559 | |
560 | int |
8ac85365 |
561 | magic_getuvar(SV *sv, MAGIC *mg) |
79072805 |
562 | { |
563 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
564 | |
565 | if (uf && uf->uf_val) |
566 | (*uf->uf_val)(uf->uf_index, sv); |
567 | return 0; |
568 | } |
569 | |
570 | int |
8ac85365 |
571 | magic_setenv(SV *sv, MAGIC *mg) |
79072805 |
572 | { |
573 | register char *s; |
88e89b8a |
574 | char *ptr; |
5aabfad6 |
575 | STRLEN len, klen; |
a0d0e21e |
576 | I32 i; |
1e422769 |
577 | |
a0d0e21e |
578 | s = SvPV(sv,len); |
5aabfad6 |
579 | ptr = MgPV(mg,klen); |
88e89b8a |
580 | my_setenv(ptr, s); |
1e422769 |
581 | |
a0d0e21e |
582 | #ifdef DYNAMIC_ENV_FETCH |
583 | /* We just undefd an environment var. Is a replacement */ |
584 | /* waiting in the wings? */ |
585 | if (!len) { |
5aabfad6 |
586 | SV **valp; |
587 | if ((valp = hv_fetch(GvHVn(envgv), ptr, klen, FALSE))) |
588 | s = SvPV(*valp, len); |
a0d0e21e |
589 | } |
590 | #endif |
1e422769 |
591 | |
3e3baf6d |
592 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) |
79072805 |
593 | /* And you'll never guess what the dog had */ |
594 | /* in its mouth... */ |
463ee0b2 |
595 | if (tainting) { |
1e422769 |
596 | MgTAINTEDDIR_off(mg); |
597 | #ifdef VMS |
5aabfad6 |
598 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 |
599 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
600 | struct stat sbuf; |
601 | int i = 0, j = 0; |
602 | |
603 | do { /* DCL$PATH may be a search list */ |
604 | while (1) { /* as may dev portion of any element */ |
605 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { |
606 | if ( *(cp+1) == '.' || *(cp+1) == '-' || |
607 | cando_by_name(S_IWUSR,0,elt) ) { |
608 | MgTAINTEDDIR_on(mg); |
609 | return 0; |
610 | } |
611 | } |
612 | if ((cp = strchr(elt, ':')) != Nullch) |
613 | *cp = '\0'; |
614 | if (my_trnlnm(elt, eltbuf, j++)) |
615 | elt = eltbuf; |
616 | else |
617 | break; |
618 | } |
619 | j = 0; |
620 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); |
621 | } |
622 | #endif /* VMS */ |
5aabfad6 |
623 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e |
624 | char *strend = s + len; |
463ee0b2 |
625 | |
626 | while (s < strend) { |
96827780 |
627 | char tmpbuf[256]; |
1e422769 |
628 | struct stat st; |
96827780 |
629 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e |
630 | s, strend, ':', &i); |
463ee0b2 |
631 | s++; |
96827780 |
632 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
633 | || *tmpbuf != '/' |
634 | || (Stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 |
635 | MgTAINTEDDIR_on(mg); |
1e422769 |
636 | return 0; |
637 | } |
463ee0b2 |
638 | } |
79072805 |
639 | } |
640 | } |
3e3baf6d |
641 | #endif /* neither OS2 nor AMIGAOS nor WIN32 */ |
1e422769 |
642 | |
79072805 |
643 | return 0; |
644 | } |
645 | |
646 | int |
8ac85365 |
647 | magic_clearenv(SV *sv, MAGIC *mg) |
85e6fe83 |
648 | { |
5aabfad6 |
649 | my_setenv(MgPV(mg,na),Nullch); |
85e6fe83 |
650 | return 0; |
651 | } |
652 | |
88e89b8a |
653 | int |
8ac85365 |
654 | magic_set_all_env(SV *sv, MAGIC *mg) |
fb73857a |
655 | { |
656 | #if defined(VMS) |
657 | die("Can't make list assignment to %%ENV on this system"); |
658 | #else |
d58bf5aa |
659 | dTHR; |
fb73857a |
660 | if (localizing) { |
661 | HE* entry; |
662 | magic_clear_all_env(sv,mg); |
663 | hv_iterinit((HV*)sv); |
664 | while (entry = hv_iternext((HV*)sv)) { |
665 | I32 keylen; |
666 | my_setenv(hv_iterkey(entry, &keylen), |
667 | SvPV(hv_iterval((HV*)sv, entry), na)); |
668 | } |
669 | } |
670 | #endif |
671 | return 0; |
672 | } |
673 | |
674 | int |
8ac85365 |
675 | magic_clear_all_env(SV *sv, MAGIC *mg) |
66b1d557 |
676 | { |
3e3baf6d |
677 | #if defined(VMS) |
678 | die("Can't make list assignment to %%ENV on this system"); |
679 | #else |
680 | #ifdef WIN32 |
681 | char *envv = GetEnvironmentStrings(); |
682 | char *cur = envv; |
683 | STRLEN len; |
684 | while (*cur) { |
685 | char *end = strchr(cur,'='); |
686 | if (end && end != cur) { |
687 | *end = '\0'; |
688 | my_setenv(cur,Nullch); |
689 | *end = '='; |
690 | cur += strlen(end+1)+1; |
691 | } |
692 | else if ((len = strlen(cur))) |
693 | cur += len+1; |
694 | } |
695 | FreeEnvironmentStrings(envv); |
66b1d557 |
696 | #else |
697 | I32 i; |
698 | |
699 | if (environ == origenviron) |
700 | New(901, environ, 1, char*); |
701 | else |
702 | for (i = 0; environ[i]; i++) |
703 | Safefree(environ[i]); |
704 | environ[0] = Nullch; |
705 | |
66b1d557 |
706 | #endif |
3e3baf6d |
707 | #endif |
708 | return 0; |
66b1d557 |
709 | } |
710 | |
711 | int |
8ac85365 |
712 | magic_getsig(SV *sv, MAGIC *mg) |
88e89b8a |
713 | { |
714 | I32 i; |
715 | /* Are we fetching a signal entry? */ |
5aabfad6 |
716 | i = whichsig(MgPV(mg,na)); |
88e89b8a |
717 | if (i) { |
718 | if(psig_ptr[i]) |
719 | sv_setsv(sv,psig_ptr[i]); |
720 | else { |
e858de61 |
721 | dTHR; /* just for SvREFCNT_inc */ |
ff68c719 |
722 | Sighandler_t sigstate = rsignal_state(i); |
723 | |
88e89b8a |
724 | /* cache state so we don't fetch it again */ |
ff68c719 |
725 | if(sigstate == SIG_IGN) |
88e89b8a |
726 | sv_setpv(sv,"IGNORE"); |
727 | else |
728 | sv_setsv(sv,&sv_undef); |
729 | psig_ptr[i] = SvREFCNT_inc(sv); |
730 | SvTEMP_off(sv); |
731 | } |
732 | } |
733 | return 0; |
734 | } |
735 | int |
8ac85365 |
736 | magic_clearsig(SV *sv, MAGIC *mg) |
88e89b8a |
737 | { |
738 | I32 i; |
739 | /* Are we clearing a signal entry? */ |
5aabfad6 |
740 | i = whichsig(MgPV(mg,na)); |
88e89b8a |
741 | if (i) { |
742 | if(psig_ptr[i]) { |
743 | SvREFCNT_dec(psig_ptr[i]); |
744 | psig_ptr[i]=0; |
745 | } |
746 | if(psig_name[i]) { |
747 | SvREFCNT_dec(psig_name[i]); |
748 | psig_name[i]=0; |
749 | } |
750 | } |
751 | return 0; |
752 | } |
3d37d572 |
753 | |
85e6fe83 |
754 | int |
8ac85365 |
755 | magic_setsig(SV *sv, MAGIC *mg) |
79072805 |
756 | { |
11343788 |
757 | dTHR; |
79072805 |
758 | register char *s; |
759 | I32 i; |
748a9306 |
760 | SV** svp; |
a0d0e21e |
761 | |
5aabfad6 |
762 | s = MgPV(mg,na); |
748a9306 |
763 | if (*s == '_') { |
764 | if (strEQ(s,"__DIE__")) |
765 | svp = &diehook; |
766 | else if (strEQ(s,"__WARN__")) |
767 | svp = &warnhook; |
768 | else if (strEQ(s,"__PARSE__")) |
769 | svp = &parsehook; |
770 | else |
771 | croak("No such hook: %s", s); |
772 | i = 0; |
4633a7c4 |
773 | if (*svp) { |
774 | SvREFCNT_dec(*svp); |
775 | *svp = 0; |
776 | } |
748a9306 |
777 | } |
778 | else { |
779 | i = whichsig(s); /* ...no, a brick */ |
780 | if (!i) { |
781 | if (dowarn || strEQ(s,"ALARM")) |
782 | warn("No such signal: SIG%s", s); |
783 | return 0; |
784 | } |
ff0cee69 |
785 | SvREFCNT_dec(psig_name[i]); |
786 | SvREFCNT_dec(psig_ptr[i]); |
88e89b8a |
787 | psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a |
788 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
ff0cee69 |
789 | psig_name[i] = newSVpv(s, strlen(s)); |
88e89b8a |
790 | SvREADONLY_on(psig_name[i]); |
748a9306 |
791 | } |
a0d0e21e |
792 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 |
793 | if (i) |
c23142e2 |
794 | (void)rsignal(i, sighandlerp); |
748a9306 |
795 | else |
796 | *svp = SvREFCNT_inc(sv); |
a0d0e21e |
797 | return 0; |
798 | } |
799 | s = SvPV_force(sv,na); |
748a9306 |
800 | if (strEQ(s,"IGNORE")) { |
801 | if (i) |
ff68c719 |
802 | (void)rsignal(i, SIG_IGN); |
748a9306 |
803 | else |
804 | *svp = 0; |
805 | } |
806 | else if (strEQ(s,"DEFAULT") || !*s) { |
807 | if (i) |
ff68c719 |
808 | (void)rsignal(i, SIG_DFL); |
748a9306 |
809 | else |
810 | *svp = 0; |
811 | } |
79072805 |
812 | else { |
5aabfad6 |
813 | /* |
814 | * We should warn if HINT_STRICT_REFS, but without |
815 | * access to a known hint bit in a known OP, we can't |
816 | * tell whether HINT_STRICT_REFS is in force or not. |
817 | */ |
46fc3d4c |
818 | if (!strchr(s,':') && !strchr(s,'\'')) |
819 | sv_setpv(sv, form("main::%s", s)); |
748a9306 |
820 | if (i) |
c23142e2 |
821 | (void)rsignal(i, sighandlerp); |
748a9306 |
822 | else |
823 | *svp = SvREFCNT_inc(sv); |
79072805 |
824 | } |
825 | return 0; |
826 | } |
827 | |
828 | int |
8ac85365 |
829 | magic_setisa(SV *sv, MAGIC *mg) |
79072805 |
830 | { |
463ee0b2 |
831 | sub_generation++; |
832 | return 0; |
833 | } |
834 | |
a0d0e21e |
835 | #ifdef OVERLOAD |
836 | |
463ee0b2 |
837 | int |
8ac85365 |
838 | magic_setamagic(SV *sv, MAGIC *mg) |
463ee0b2 |
839 | { |
a0d0e21e |
840 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
841 | amagic_generation++; |
463ee0b2 |
842 | |
a0d0e21e |
843 | return 0; |
844 | } |
845 | #endif /* OVERLOAD */ |
463ee0b2 |
846 | |
946ec16e |
847 | int |
8ac85365 |
848 | magic_setnkeys(SV *sv, MAGIC *mg) |
946ec16e |
849 | { |
850 | if (LvTARG(sv)) { |
851 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); |
852 | LvTARG(sv) = Nullsv; /* Don't allow a ref to reassign this. */ |
853 | } |
854 | return 0; |
855 | } |
856 | |
a0d0e21e |
857 | static int |
8ac85365 |
858 | magic_methpack(SV *sv, MAGIC *mg, char *meth) |
a0d0e21e |
859 | { |
11343788 |
860 | dTHR; |
a0d0e21e |
861 | dSP; |
463ee0b2 |
862 | |
a0d0e21e |
863 | ENTER; |
864 | SAVETMPS; |
865 | PUSHMARK(sp); |
866 | EXTEND(sp, 2); |
867 | PUSHs(mg->mg_obj); |
88e89b8a |
868 | if (mg->mg_ptr) { |
869 | if (mg->mg_len >= 0) |
870 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
871 | else if (mg->mg_len == HEf_SVKEY) |
872 | PUSHs((SV*)mg->mg_ptr); |
873 | } |
a0d0e21e |
874 | else if (mg->mg_type == 'p') |
875 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
463ee0b2 |
876 | PUTBACK; |
877 | |
a0d0e21e |
878 | if (perl_call_method(meth, G_SCALAR)) |
879 | sv_setsv(sv, *stack_sp--); |
463ee0b2 |
880 | |
a0d0e21e |
881 | FREETMPS; |
882 | LEAVE; |
883 | return 0; |
884 | } |
463ee0b2 |
885 | |
a0d0e21e |
886 | int |
8ac85365 |
887 | magic_getpack(SV *sv, MAGIC *mg) |
a0d0e21e |
888 | { |
889 | magic_methpack(sv,mg,"FETCH"); |
890 | if (mg->mg_ptr) |
891 | mg->mg_flags |= MGf_GSKIP; |
463ee0b2 |
892 | return 0; |
893 | } |
894 | |
895 | int |
8ac85365 |
896 | magic_setpack(SV *sv, MAGIC *mg) |
463ee0b2 |
897 | { |
11343788 |
898 | dTHR; |
463ee0b2 |
899 | dSP; |
463ee0b2 |
900 | |
a0d0e21e |
901 | PUSHMARK(sp); |
902 | EXTEND(sp, 3); |
903 | PUSHs(mg->mg_obj); |
88e89b8a |
904 | if (mg->mg_ptr) { |
905 | if (mg->mg_len >= 0) |
906 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
907 | else if (mg->mg_len == HEf_SVKEY) |
908 | PUSHs((SV*)mg->mg_ptr); |
909 | } |
a0d0e21e |
910 | else if (mg->mg_type == 'p') |
911 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
463ee0b2 |
912 | PUSHs(sv); |
913 | PUTBACK; |
914 | |
a0d0e21e |
915 | perl_call_method("STORE", G_SCALAR|G_DISCARD); |
463ee0b2 |
916 | |
917 | return 0; |
918 | } |
919 | |
920 | int |
8ac85365 |
921 | magic_clearpack(SV *sv, MAGIC *mg) |
463ee0b2 |
922 | { |
a0d0e21e |
923 | return magic_methpack(sv,mg,"DELETE"); |
924 | } |
463ee0b2 |
925 | |
8ac85365 |
926 | int magic_wipepack(SV *sv, MAGIC *mg) |
a0d0e21e |
927 | { |
11343788 |
928 | dTHR; |
a0d0e21e |
929 | dSP; |
463ee0b2 |
930 | |
a0d0e21e |
931 | PUSHMARK(sp); |
932 | XPUSHs(mg->mg_obj); |
463ee0b2 |
933 | PUTBACK; |
463ee0b2 |
934 | |
a0d0e21e |
935 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
463ee0b2 |
936 | |
937 | return 0; |
938 | } |
939 | |
940 | int |
8ac85365 |
941 | magic_nextpack(SV *sv, MAGIC *mg, SV *key) |
463ee0b2 |
942 | { |
11343788 |
943 | dTHR; |
463ee0b2 |
944 | dSP; |
a0d0e21e |
945 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 |
946 | |
947 | ENTER; |
a0d0e21e |
948 | SAVETMPS; |
949 | PUSHMARK(sp); |
950 | EXTEND(sp, 2); |
951 | PUSHs(mg->mg_obj); |
463ee0b2 |
952 | if (SvOK(key)) |
953 | PUSHs(key); |
954 | PUTBACK; |
955 | |
a0d0e21e |
956 | if (perl_call_method(meth, G_SCALAR)) |
957 | sv_setsv(key, *stack_sp--); |
463ee0b2 |
958 | |
a0d0e21e |
959 | FREETMPS; |
960 | LEAVE; |
79072805 |
961 | return 0; |
962 | } |
963 | |
964 | int |
8ac85365 |
965 | magic_existspack(SV *sv, MAGIC *mg) |
a0d0e21e |
966 | { |
967 | return magic_methpack(sv,mg,"EXISTS"); |
968 | } |
969 | |
970 | int |
8ac85365 |
971 | magic_setdbline(SV *sv, MAGIC *mg) |
79072805 |
972 | { |
11343788 |
973 | dTHR; |
79072805 |
974 | OP *o; |
975 | I32 i; |
976 | GV* gv; |
977 | SV** svp; |
978 | |
979 | gv = DBline; |
980 | i = SvTRUE(sv); |
188ea221 |
981 | svp = av_fetch(GvAV(gv), |
5aabfad6 |
982 | atoi(MgPV(mg,na)), FALSE); |
8990e307 |
983 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 |
984 | o->op_private = i; |
79072805 |
985 | else |
986 | warn("Can't break at that line\n"); |
987 | return 0; |
988 | } |
989 | |
990 | int |
8ac85365 |
991 | magic_getarylen(SV *sv, MAGIC *mg) |
79072805 |
992 | { |
0f15f207 |
993 | dTHR; |
a0d0e21e |
994 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 |
995 | return 0; |
996 | } |
997 | |
998 | int |
8ac85365 |
999 | magic_setarylen(SV *sv, MAGIC *mg) |
79072805 |
1000 | { |
0f15f207 |
1001 | dTHR; |
a0d0e21e |
1002 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
1003 | return 0; |
1004 | } |
1005 | |
1006 | int |
8ac85365 |
1007 | magic_getpos(SV *sv, MAGIC *mg) |
a0d0e21e |
1008 | { |
1009 | SV* lsv = LvTARG(sv); |
1010 | |
1011 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
1012 | mg = mg_find(lsv, 'g'); |
1013 | if (mg && mg->mg_len >= 0) { |
0f15f207 |
1014 | dTHR; |
a0d0e21e |
1015 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); |
1016 | return 0; |
1017 | } |
1018 | } |
1019 | (void)SvOK_off(sv); |
1020 | return 0; |
1021 | } |
1022 | |
1023 | int |
8ac85365 |
1024 | magic_setpos(SV *sv, MAGIC *mg) |
a0d0e21e |
1025 | { |
1026 | SV* lsv = LvTARG(sv); |
1027 | SSize_t pos; |
1028 | STRLEN len; |
1029 | |
1030 | mg = 0; |
1031 | |
1032 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
1033 | mg = mg_find(lsv, 'g'); |
1034 | if (!mg) { |
1035 | if (!SvOK(sv)) |
1036 | return 0; |
1037 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); |
1038 | mg = mg_find(lsv, 'g'); |
1039 | } |
1040 | else if (!SvOK(sv)) { |
1041 | mg->mg_len = -1; |
1042 | return 0; |
1043 | } |
1044 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); |
1045 | |
0f15f207 |
1046 | WITH_THR(pos = SvIV(sv) - curcop->cop_arybase); |
a0d0e21e |
1047 | if (pos < 0) { |
1048 | pos += len; |
1049 | if (pos < 0) |
1050 | pos = 0; |
1051 | } |
1052 | else if (pos > len) |
1053 | pos = len; |
1054 | mg->mg_len = pos; |
71be2cbc |
1055 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e |
1056 | |
79072805 |
1057 | return 0; |
1058 | } |
1059 | |
1060 | int |
8ac85365 |
1061 | magic_getglob(SV *sv, MAGIC *mg) |
79072805 |
1062 | { |
8646b087 |
1063 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1064 | SvFAKE_off(sv); |
946ec16e |
1065 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 |
1066 | SvFAKE_on(sv); |
1067 | } |
1068 | else |
946ec16e |
1069 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 |
1070 | return 0; |
1071 | } |
1072 | |
1073 | int |
8ac85365 |
1074 | magic_setglob(SV *sv, MAGIC *mg) |
79072805 |
1075 | { |
1076 | register char *s; |
1077 | GV* gv; |
1078 | |
1079 | if (!SvOK(sv)) |
1080 | return 0; |
463ee0b2 |
1081 | s = SvPV(sv, na); |
79072805 |
1082 | if (*s == '*' && s[1]) |
1083 | s++; |
85e6fe83 |
1084 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 |
1085 | if (sv == (SV*)gv) |
1086 | return 0; |
1087 | if (GvGP(sv)) |
88e89b8a |
1088 | gp_free((GV*)sv); |
79072805 |
1089 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 |
1090 | return 0; |
1091 | } |
1092 | |
1093 | int |
8ac85365 |
1094 | magic_setsubstr(SV *sv, MAGIC *mg) |
79072805 |
1095 | { |
8990e307 |
1096 | STRLEN len; |
1097 | char *tmps = SvPV(sv,len); |
1098 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); |
79072805 |
1099 | return 0; |
1100 | } |
1101 | |
1102 | int |
8ac85365 |
1103 | magic_gettaint(SV *sv, MAGIC *mg) |
463ee0b2 |
1104 | { |
bbce6d69 |
1105 | TAINT_IF((mg->mg_len & 1) || |
1106 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ |
463ee0b2 |
1107 | return 0; |
1108 | } |
1109 | |
1110 | int |
8ac85365 |
1111 | magic_settaint(SV *sv, MAGIC *mg) |
463ee0b2 |
1112 | { |
11343788 |
1113 | dTHR; |
748a9306 |
1114 | if (localizing) { |
1115 | if (localizing == 1) |
1116 | mg->mg_len <<= 1; |
1117 | else |
1118 | mg->mg_len >>= 1; |
a0d0e21e |
1119 | } |
748a9306 |
1120 | else if (tainted) |
1121 | mg->mg_len |= 1; |
1122 | else |
1123 | mg->mg_len &= ~1; |
463ee0b2 |
1124 | return 0; |
1125 | } |
1126 | |
1127 | int |
8ac85365 |
1128 | magic_setvec(SV *sv, MAGIC *mg) |
79072805 |
1129 | { |
1130 | do_vecset(sv); /* XXX slurp this routine */ |
1131 | return 0; |
1132 | } |
1133 | |
1134 | int |
8ac85365 |
1135 | magic_getdefelem(SV *sv, MAGIC *mg) |
5f05dabc |
1136 | { |
71be2cbc |
1137 | SV *targ = Nullsv; |
5f05dabc |
1138 | if (LvTARGLEN(sv)) { |
68dc0745 |
1139 | if (mg->mg_obj) { |
1140 | HV* hv = (HV*)LvTARG(sv); |
1141 | HE* he = hv_fetch_ent(hv, mg->mg_obj, FALSE, 0); |
1142 | if (he) |
1143 | targ = HeVAL(he); |
1144 | } |
1145 | else { |
1146 | AV* av = (AV*)LvTARG(sv); |
1147 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1148 | targ = AvARRAY(av)[LvTARGOFF(sv)]; |
1149 | } |
1150 | if (targ && targ != &sv_undef) { |
e858de61 |
1151 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 |
1152 | /* somebody else defined it for us */ |
1153 | SvREFCNT_dec(LvTARG(sv)); |
1154 | LvTARG(sv) = SvREFCNT_inc(targ); |
1155 | LvTARGLEN(sv) = 0; |
1156 | SvREFCNT_dec(mg->mg_obj); |
1157 | mg->mg_obj = Nullsv; |
1158 | mg->mg_flags &= ~MGf_REFCOUNTED; |
1159 | } |
5f05dabc |
1160 | } |
71be2cbc |
1161 | else |
1162 | targ = LvTARG(sv); |
1163 | sv_setsv(sv, targ ? targ : &sv_undef); |
1164 | return 0; |
1165 | } |
1166 | |
1167 | int |
8ac85365 |
1168 | magic_setdefelem(SV *sv, MAGIC *mg) |
71be2cbc |
1169 | { |
1170 | if (LvTARGLEN(sv)) |
68dc0745 |
1171 | vivify_defelem(sv); |
1172 | if (LvTARG(sv)) { |
5f05dabc |
1173 | sv_setsv(LvTARG(sv), sv); |
68dc0745 |
1174 | SvSETMAGIC(LvTARG(sv)); |
1175 | } |
5f05dabc |
1176 | return 0; |
1177 | } |
1178 | |
1179 | int |
8ac85365 |
1180 | magic_freedefelem(SV *sv, MAGIC *mg) |
5f05dabc |
1181 | { |
1182 | SvREFCNT_dec(LvTARG(sv)); |
71be2cbc |
1183 | return 0; |
1184 | } |
1185 | |
1186 | void |
8ac85365 |
1187 | vivify_defelem(SV *sv) |
71be2cbc |
1188 | { |
e858de61 |
1189 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
68dc0745 |
1190 | MAGIC* mg; |
1191 | SV* value; |
71be2cbc |
1192 | |
68dc0745 |
1193 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc |
1194 | return; |
68dc0745 |
1195 | if (mg->mg_obj) { |
1196 | HV* hv = (HV*)LvTARG(sv); |
1197 | HE* he = hv_fetch_ent(hv, mg->mg_obj, TRUE, 0); |
1198 | if (!he || (value = HeVAL(he)) == &sv_undef) |
1199 | croak(no_helem, SvPV(mg->mg_obj, na)); |
71be2cbc |
1200 | } |
68dc0745 |
1201 | else { |
1202 | AV* av = (AV*)LvTARG(sv); |
5aabfad6 |
1203 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 |
1204 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1205 | else { |
1206 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); |
1207 | if (!svp || (value = *svp) == &sv_undef) |
1208 | croak(no_aelem, (I32)LvTARGOFF(sv)); |
1209 | } |
1210 | } |
3e3baf6d |
1211 | (void)SvREFCNT_inc(value); |
68dc0745 |
1212 | SvREFCNT_dec(LvTARG(sv)); |
1213 | LvTARG(sv) = value; |
71be2cbc |
1214 | LvTARGLEN(sv) = 0; |
68dc0745 |
1215 | SvREFCNT_dec(mg->mg_obj); |
1216 | mg->mg_obj = Nullsv; |
1217 | mg->mg_flags &= ~MGf_REFCOUNTED; |
5f05dabc |
1218 | } |
1219 | |
1220 | int |
8ac85365 |
1221 | magic_setmglob(SV *sv, MAGIC *mg) |
93a17b20 |
1222 | { |
a0d0e21e |
1223 | mg->mg_len = -1; |
c6496cc7 |
1224 | SvSCREAM_off(sv); |
93a17b20 |
1225 | return 0; |
1226 | } |
1227 | |
1228 | int |
8ac85365 |
1229 | magic_setbm(SV *sv, MAGIC *mg) |
79072805 |
1230 | { |
463ee0b2 |
1231 | sv_unmagic(sv, 'B'); |
79072805 |
1232 | SvVALID_off(sv); |
1233 | return 0; |
1234 | } |
1235 | |
1236 | int |
8ac85365 |
1237 | magic_setfm(SV *sv, MAGIC *mg) |
55497cff |
1238 | { |
1239 | sv_unmagic(sv, 'f'); |
1240 | SvCOMPILED_off(sv); |
1241 | return 0; |
1242 | } |
1243 | |
1244 | int |
8ac85365 |
1245 | magic_setuvar(SV *sv, MAGIC *mg) |
79072805 |
1246 | { |
1247 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
1248 | |
1249 | if (uf && uf->uf_set) |
1250 | (*uf->uf_set)(uf->uf_index, sv); |
1251 | return 0; |
1252 | } |
1253 | |
7a4c00b4 |
1254 | #ifdef USE_LOCALE_COLLATE |
79072805 |
1255 | int |
8ac85365 |
1256 | magic_setcollxfrm(SV *sv, MAGIC *mg) |
bbce6d69 |
1257 | { |
1258 | /* |
1259 | * René Descartes said "I think not." |
1260 | * and vanished with a faint plop. |
1261 | */ |
7a4c00b4 |
1262 | if (mg->mg_ptr) { |
1263 | Safefree(mg->mg_ptr); |
1264 | mg->mg_ptr = NULL; |
1265 | mg->mg_len = -1; |
1266 | } |
bbce6d69 |
1267 | return 0; |
1268 | } |
7a4c00b4 |
1269 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
1270 | |
1271 | int |
8ac85365 |
1272 | magic_set(SV *sv, MAGIC *mg) |
79072805 |
1273 | { |
11343788 |
1274 | dTHR; |
79072805 |
1275 | register char *s; |
1276 | I32 i; |
8990e307 |
1277 | STRLEN len; |
79072805 |
1278 | switch (*mg->mg_ptr) { |
748a9306 |
1279 | case '\001': /* ^A */ |
1280 | sv_setsv(bodytarget, sv); |
1281 | break; |
79072805 |
1282 | case '\004': /* ^D */ |
8990e307 |
1283 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 |
1284 | DEBUG_x(dump_all()); |
1285 | break; |
28f23441 |
1286 | case '\005': /* ^E */ |
1287 | #ifdef VMS |
1288 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1289 | #else |
f86702cc |
1290 | /* will anyone ever use this? */ |
1291 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); |
28f23441 |
1292 | #endif |
1293 | break; |
79072805 |
1294 | case '\006': /* ^F */ |
463ee0b2 |
1295 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1296 | break; |
a0d0e21e |
1297 | case '\010': /* ^H */ |
1298 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1299 | break; |
79072805 |
1300 | case '\t': /* ^I */ |
1301 | if (inplace) |
1302 | Safefree(inplace); |
1303 | if (SvOK(sv)) |
a0d0e21e |
1304 | inplace = savepv(SvPV(sv,na)); |
79072805 |
1305 | else |
1306 | inplace = Nullch; |
1307 | break; |
28f23441 |
1308 | case '\017': /* ^O */ |
1309 | if (osname) |
1310 | Safefree(osname); |
1311 | if (SvOK(sv)) |
1312 | osname = savepv(SvPV(sv,na)); |
1313 | else |
1314 | osname = Nullch; |
1315 | break; |
79072805 |
1316 | case '\020': /* ^P */ |
84902520 |
1317 | perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1318 | break; |
1319 | case '\024': /* ^T */ |
88e89b8a |
1320 | #ifdef BIG_TIME |
1321 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
1322 | #else |
85e6fe83 |
1323 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a |
1324 | #endif |
79072805 |
1325 | break; |
1326 | case '\027': /* ^W */ |
463ee0b2 |
1327 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1328 | break; |
1329 | case '.': |
748a9306 |
1330 | if (localizing) { |
1331 | if (localizing == 1) |
1332 | save_sptr((SV**)&last_in_gv); |
1333 | } |
88e89b8a |
1334 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e |
1335 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 |
1336 | break; |
1337 | case '^': |
a0d0e21e |
1338 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1339 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); |
1340 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1341 | break; |
1342 | case '~': |
a0d0e21e |
1343 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1344 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); |
1345 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1346 | break; |
1347 | case '=': |
a0d0e21e |
1348 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1349 | break; |
1350 | case '-': |
a0d0e21e |
1351 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1352 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) |
1353 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; |
79072805 |
1354 | break; |
1355 | case '%': |
a0d0e21e |
1356 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1357 | break; |
1358 | case '|': |
4b65379b |
1359 | { |
1360 | IO *io = GvIOp(defoutgv); |
1361 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1362 | IoFLAGS(io) &= ~IOf_FLUSH; |
1363 | else { |
1364 | if (!(IoFLAGS(io) & IOf_FLUSH)) { |
1365 | PerlIO *ofp = IoOFP(io); |
1366 | if (ofp) |
1367 | (void)PerlIO_flush(ofp); |
1368 | IoFLAGS(io) |= IOf_FLUSH; |
1369 | } |
1370 | } |
79072805 |
1371 | } |
1372 | break; |
1373 | case '*': |
463ee0b2 |
1374 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1375 | multiline = (i != 0); |
1376 | break; |
1377 | case '/': |
c07a80fd |
1378 | SvREFCNT_dec(nrs); |
1379 | nrs = newSVsv(sv); |
1380 | SvREFCNT_dec(rs); |
1381 | rs = SvREFCNT_inc(nrs); |
79072805 |
1382 | break; |
1383 | case '\\': |
1384 | if (ors) |
1385 | Safefree(ors); |
e3c19b7b |
1386 | if (SvOK(sv) || SvGMAGICAL(sv)) |
1387 | ors = savepv(SvPV(sv,orslen)); |
1388 | else { |
1389 | ors = Nullch; |
1390 | orslen = 0; |
1391 | } |
79072805 |
1392 | break; |
1393 | case ',': |
1394 | if (ofs) |
1395 | Safefree(ofs); |
a0d0e21e |
1396 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 |
1397 | break; |
1398 | case '#': |
1399 | if (ofmt) |
1400 | Safefree(ofmt); |
a0d0e21e |
1401 | ofmt = savepv(SvPV(sv,na)); |
79072805 |
1402 | break; |
1403 | case '[': |
a0d0e21e |
1404 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1405 | break; |
1406 | case '?': |
ff0cee69 |
1407 | #ifdef COMPLEX_STATUS |
1408 | if (localizing == 2) { |
1409 | statusvalue = LvTARGOFF(sv); |
1410 | statusvalue_vms = LvTARGLEN(sv); |
1411 | } |
1412 | else |
1413 | #endif |
1414 | #ifdef VMSISH_STATUS |
1415 | if (VMSISH_STATUS) |
1416 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); |
1417 | else |
1418 | #endif |
1419 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1420 | break; |
1421 | case '!': |
f86702cc |
1422 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), |
1423 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 |
1424 | break; |
1425 | case '<': |
463ee0b2 |
1426 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1427 | if (delaymagic) { |
1428 | delaymagic |= DM_RUID; |
1429 | break; /* don't do magic till later */ |
1430 | } |
1431 | #ifdef HAS_SETRUID |
85e6fe83 |
1432 | (void)setruid((Uid_t)uid); |
79072805 |
1433 | #else |
1434 | #ifdef HAS_SETREUID |
85e6fe83 |
1435 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 |
1436 | #else |
85e6fe83 |
1437 | #ifdef HAS_SETRESUID |
1438 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); |
79072805 |
1439 | #else |
1440 | if (uid == euid) /* special case $< = $> */ |
1441 | (void)setuid(uid); |
a0d0e21e |
1442 | else { |
1443 | uid = (I32)getuid(); |
463ee0b2 |
1444 | croak("setruid() not implemented"); |
a0d0e21e |
1445 | } |
79072805 |
1446 | #endif |
1447 | #endif |
85e6fe83 |
1448 | #endif |
748a9306 |
1449 | uid = (I32)getuid(); |
4633a7c4 |
1450 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1451 | break; |
1452 | case '>': |
463ee0b2 |
1453 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1454 | if (delaymagic) { |
1455 | delaymagic |= DM_EUID; |
1456 | break; /* don't do magic till later */ |
1457 | } |
1458 | #ifdef HAS_SETEUID |
85e6fe83 |
1459 | (void)seteuid((Uid_t)euid); |
79072805 |
1460 | #else |
1461 | #ifdef HAS_SETREUID |
85e6fe83 |
1462 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1463 | #else |
1464 | #ifdef HAS_SETRESUID |
1465 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); |
79072805 |
1466 | #else |
1467 | if (euid == uid) /* special case $> = $< */ |
1468 | setuid(euid); |
a0d0e21e |
1469 | else { |
1470 | euid = (I32)geteuid(); |
463ee0b2 |
1471 | croak("seteuid() not implemented"); |
a0d0e21e |
1472 | } |
79072805 |
1473 | #endif |
1474 | #endif |
85e6fe83 |
1475 | #endif |
79072805 |
1476 | euid = (I32)geteuid(); |
4633a7c4 |
1477 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1478 | break; |
1479 | case '(': |
463ee0b2 |
1480 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1481 | if (delaymagic) { |
1482 | delaymagic |= DM_RGID; |
1483 | break; /* don't do magic till later */ |
1484 | } |
1485 | #ifdef HAS_SETRGID |
85e6fe83 |
1486 | (void)setrgid((Gid_t)gid); |
79072805 |
1487 | #else |
1488 | #ifdef HAS_SETREGID |
85e6fe83 |
1489 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1490 | #else |
1491 | #ifdef HAS_SETRESGID |
1492 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); |
79072805 |
1493 | #else |
1494 | if (gid == egid) /* special case $( = $) */ |
1495 | (void)setgid(gid); |
748a9306 |
1496 | else { |
1497 | gid = (I32)getgid(); |
463ee0b2 |
1498 | croak("setrgid() not implemented"); |
748a9306 |
1499 | } |
79072805 |
1500 | #endif |
1501 | #endif |
85e6fe83 |
1502 | #endif |
79072805 |
1503 | gid = (I32)getgid(); |
4633a7c4 |
1504 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1505 | break; |
1506 | case ')': |
5cd24f17 |
1507 | #ifdef HAS_SETGROUPS |
1508 | { |
1509 | char *p = SvPV(sv, na); |
1510 | Groups_t gary[NGROUPS]; |
1511 | |
1512 | SET_NUMERIC_STANDARD(); |
1513 | while (isSPACE(*p)) |
1514 | ++p; |
1515 | egid = I_V(atof(p)); |
1516 | for (i = 0; i < NGROUPS; ++i) { |
1517 | while (*p && !isSPACE(*p)) |
1518 | ++p; |
1519 | while (isSPACE(*p)) |
1520 | ++p; |
1521 | if (!*p) |
1522 | break; |
1523 | gary[i] = I_V(atof(p)); |
1524 | } |
8cc95fdb |
1525 | if (i) |
1526 | (void)setgroups(i, gary); |
5cd24f17 |
1527 | } |
1528 | #else /* HAS_SETGROUPS */ |
463ee0b2 |
1529 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 |
1530 | #endif /* HAS_SETGROUPS */ |
79072805 |
1531 | if (delaymagic) { |
1532 | delaymagic |= DM_EGID; |
1533 | break; /* don't do magic till later */ |
1534 | } |
1535 | #ifdef HAS_SETEGID |
85e6fe83 |
1536 | (void)setegid((Gid_t)egid); |
79072805 |
1537 | #else |
1538 | #ifdef HAS_SETREGID |
85e6fe83 |
1539 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1540 | #else |
1541 | #ifdef HAS_SETRESGID |
1542 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); |
79072805 |
1543 | #else |
1544 | if (egid == gid) /* special case $) = $( */ |
1545 | (void)setgid(egid); |
748a9306 |
1546 | else { |
1547 | egid = (I32)getegid(); |
463ee0b2 |
1548 | croak("setegid() not implemented"); |
748a9306 |
1549 | } |
79072805 |
1550 | #endif |
1551 | #endif |
85e6fe83 |
1552 | #endif |
79072805 |
1553 | egid = (I32)getegid(); |
4633a7c4 |
1554 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1555 | break; |
1556 | case ':': |
a0d0e21e |
1557 | chopset = SvPV_force(sv,na); |
79072805 |
1558 | break; |
1559 | case '0': |
1560 | if (!origalen) { |
1561 | s = origargv[0]; |
1562 | s += strlen(s); |
1563 | /* See if all the arguments are contiguous in memory */ |
1564 | for (i = 1; i < origargc; i++) { |
fb73857a |
1565 | if (origargv[i] == s + 1 |
1566 | #ifdef OS2 |
1567 | || origargv[i] == s + 2 |
1568 | #endif |
1569 | ) |
79072805 |
1570 | s += strlen(++s); /* this one is ok too */ |
fb73857a |
1571 | else |
1572 | break; |
79072805 |
1573 | } |
bbce6d69 |
1574 | /* can grab env area too? */ |
fb73857a |
1575 | if (origenviron && (origenviron[0] == s + 1 |
1576 | #ifdef OS2 |
1577 | || (origenviron[0] == s + 9 && (s += 8)) |
1578 | #endif |
1579 | )) { |
66b1d557 |
1580 | my_setenv("NoNe SuCh", Nullch); |
79072805 |
1581 | /* force copy of environment */ |
1582 | for (i = 0; origenviron[i]; i++) |
1583 | if (origenviron[i] == s + 1) |
1584 | s += strlen(++s); |
fb73857a |
1585 | else |
1586 | break; |
79072805 |
1587 | } |
1588 | origalen = s - origargv[0]; |
1589 | } |
a0d0e21e |
1590 | s = SvPV_force(sv,len); |
8990e307 |
1591 | i = len; |
79072805 |
1592 | if (i >= origalen) { |
1593 | i = origalen; |
fb73857a |
1594 | /* don't allow system to limit $0 seen by script */ |
1595 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ |
79072805 |
1596 | Copy(s, origargv[0], i, char); |
fb73857a |
1597 | s = origargv[0]+i; |
1598 | *s = '\0'; |
79072805 |
1599 | } |
1600 | else { |
1601 | Copy(s, origargv[0], i, char); |
1602 | s = origargv[0]+i; |
1603 | *s++ = '\0'; |
1604 | while (++i < origalen) |
8990e307 |
1605 | *s++ = ' '; |
1606 | s = origargv[0]+i; |
ed6116ce |
1607 | for (i = 1; i < origargc; i++) |
8990e307 |
1608 | origargv[i] = Nullch; |
79072805 |
1609 | } |
1610 | break; |
1611 | } |
1612 | return 0; |
1613 | } |
1614 | |
f93b4edd |
1615 | #ifdef USE_THREADS |
1616 | int |
8ac85365 |
1617 | magic_mutexfree(SV *sv, MAGIC *mg) |
f93b4edd |
1618 | { |
1619 | dTHR; |
bc1f4c86 |
1620 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
1621 | (unsigned long)thr, (unsigned long)sv);) |
f93b4edd |
1622 | if (MgOWNER(mg)) |
1623 | croak("panic: magic_mutexfree"); |
1624 | MUTEX_DESTROY(MgMUTEXP(mg)); |
1625 | COND_DESTROY(MgCONDP(mg)); |
e55aaa0e |
1626 | SvREFCNT_dec(sv); |
f93b4edd |
1627 | return 0; |
1628 | } |
1629 | #endif /* USE_THREADS */ |
1630 | |
79072805 |
1631 | I32 |
8ac85365 |
1632 | whichsig(char *sig) |
79072805 |
1633 | { |
1634 | register char **sigv; |
1635 | |
1636 | for (sigv = sig_name+1; *sigv; sigv++) |
1637 | if (strEQ(sig,*sigv)) |
8e07c86e |
1638 | return sig_num[sigv - sig_name]; |
79072805 |
1639 | #ifdef SIGCLD |
1640 | if (strEQ(sig,"CHLD")) |
1641 | return SIGCLD; |
1642 | #endif |
1643 | #ifdef SIGCHLD |
1644 | if (strEQ(sig,"CLD")) |
1645 | return SIGCHLD; |
1646 | #endif |
1647 | return 0; |
1648 | } |
1649 | |
84902520 |
1650 | static SV* sig_sv; |
1651 | |
1652 | static void |
8ac85365 |
1653 | unwind_handler_stack(void *p) |
84902520 |
1654 | { |
ff26ac79 |
1655 | dTHR; |
84902520 |
1656 | U32 flags = *(U32*)p; |
1657 | |
1658 | if (flags & 1) |
1659 | savestack_ix -= 5; /* Unprotect save in progress. */ |
1660 | /* cxstack_ix-- Not needed, die already unwound it. */ |
1661 | if (flags & 64) |
1662 | SvREFCNT_dec(sig_sv); |
1663 | } |
1664 | |
ecfc5424 |
1665 | Signal_t |
8ac85365 |
1666 | sighandler(int sig) |
79072805 |
1667 | { |
11343788 |
1668 | dTHR; |
79072805 |
1669 | dSP; |
1670 | GV *gv; |
a0d0e21e |
1671 | HV *st; |
84902520 |
1672 | SV *sv, *tSv = Sv; |
79072805 |
1673 | CV *cv; |
79072805 |
1674 | AV *oldstack; |
84902520 |
1675 | OP *myop = op; |
1676 | U32 flags = 0; |
1677 | I32 o_save_i = savestack_ix, type; |
1678 | CONTEXT *cx; |
1679 | XPV *tXpv = Xpv; |
1680 | |
1681 | if (savestack_ix + 15 <= savestack_max) |
1682 | flags |= 1; |
1683 | if (cxstack_ix < cxstack_max - 2) |
1684 | flags |= 2; |
1685 | if (markstack_ptr < markstack_max - 2) |
1686 | flags |= 4; |
1687 | if (retstack_ix < retstack_max - 2) |
1688 | flags |= 8; |
1689 | if (scopestack_ix < scopestack_max - 3) |
1690 | flags |= 16; |
1691 | |
1692 | if (flags & 2) { /* POPBLOCK may decrease cxstack too early. */ |
1693 | cxstack_ix++; /* Protect from overwrite. */ |
1694 | cx = &cxstack[cxstack_ix]; |
1695 | type = cx->cx_type; /* Can be during partial write. */ |
1696 | cx->cx_type = CXt_NULL; /* Make it safe for unwind. */ |
1697 | } |
ff0cee69 |
1698 | if (!psig_ptr[sig]) |
1699 | die("Signal SIG%s received, but no signal handler set.\n", |
1700 | sig_name[sig]); |
1701 | |
84902520 |
1702 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
1703 | infinity, so we fix 4 (in fact 5): */ |
1704 | if (flags & 1) { |
1705 | savestack_ix += 5; /* Protect save in progress. */ |
1706 | o_save_i = savestack_ix; |
1707 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); |
1708 | } |
1709 | if (flags & 4) |
1710 | markstack_ptr++; /* Protect mark. */ |
1711 | if (flags & 8) { |
1712 | retstack_ix++; |
1713 | retstack[retstack_ix] = NULL; |
1714 | } |
1715 | if (flags & 16) |
1716 | scopestack_ix += 1; |
1717 | /* sv_2cv is too complicated, try a simpler variant first: */ |
1718 | if (!SvROK(psig_ptr[sig]) || !(cv = (CV*)SvRV(psig_ptr[sig])) |
1719 | || SvTYPE(cv) != SVt_PVCV) |
1720 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); |
1721 | |
a0d0e21e |
1722 | if (!cv || !CvROOT(cv)) { |
79072805 |
1723 | if (dowarn) |
1724 | warn("SIG%s handler \"%s\" not defined.\n", |
88e89b8a |
1725 | sig_name[sig], GvENAME(gv) ); |
79072805 |
1726 | return; |
1727 | } |
1728 | |
88e89b8a |
1729 | oldstack = curstack; |
1730 | if (curstack != signalstack) |
a0d0e21e |
1731 | AvFILL(signalstack) = 0; |
88e89b8a |
1732 | SWITCHSTACK(curstack, signalstack); |
79072805 |
1733 | |
84902520 |
1734 | if(psig_name[sig]) { |
88e89b8a |
1735 | sv = SvREFCNT_inc(psig_name[sig]); |
84902520 |
1736 | flags |= 64; |
1737 | sig_sv = sv; |
1738 | } else { |
ff0cee69 |
1739 | sv = sv_newmortal(); |
1740 | sv_setpv(sv,sig_name[sig]); |
88e89b8a |
1741 | } |
a0d0e21e |
1742 | PUSHMARK(sp); |
79072805 |
1743 | PUSHs(sv); |
79072805 |
1744 | PUTBACK; |
a0d0e21e |
1745 | |
1746 | perl_call_sv((SV*)cv, G_DISCARD); |
79072805 |
1747 | |
1748 | SWITCHSTACK(signalstack, oldstack); |
84902520 |
1749 | if (flags & 1) |
1750 | savestack_ix -= 8; /* Unprotect save in progress. */ |
1751 | if (flags & 2) { |
1752 | cxstack[cxstack_ix].cx_type = type; |
1753 | cxstack_ix -= 1; |
1754 | } |
1755 | if (flags & 4) |
1756 | markstack_ptr--; |
1757 | if (flags & 8) |
1758 | retstack_ix--; |
1759 | if (flags & 16) |
1760 | scopestack_ix -= 1; |
1761 | if (flags & 64) |
1762 | SvREFCNT_dec(sv); |
1763 | op = myop; /* Apparently not needed... */ |
1764 | |
1765 | Sv = tSv; /* Restore global temporaries. */ |
1766 | Xpv = tXpv; |
79072805 |
1767 | return; |
1768 | } |