Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
9607fc9c | 3 | * Copyright (c) 1991-1997, Larry Wall |
79072805 LW |
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 LW |
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 LW |
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 LW |
19 | #ifdef I_UNISTD |
20 | # include <unistd.h> | |
21 | #endif | |
a0d0e21e | 22 | |
5cd24f17 | 23 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
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 | ||
76e3520e | 33 | #ifdef PERL_OBJECT |
76e3520e | 34 | |
76e3520e GS |
35 | #define VTBL this->*vtbl |
36 | ||
37 | #else | |
c07a80fd | 38 | struct magic_state { |
39 | SV* mgs_sv; | |
40 | U32 mgs_flags; | |
41 | }; | |
42 | typedef struct magic_state MGS; | |
43 | ||
44 | static void restore_magic _((void *p)); | |
76e3520e | 45 | #define VTBL *vtbl |
c07a80fd | 46 | |
76e3520e GS |
47 | #endif |
48 | ||
49 | STATIC void | |
8ac85365 | 50 | save_magic(MGS *mgs, SV *sv) |
c07a80fd | 51 | { |
c07a80fd | 52 | assert(SvMAGICAL(sv)); |
53 | ||
c07a80fd | 54 | mgs->mgs_sv = sv; |
55 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
565764a8 | 56 | SAVEDESTRUCTOR(restore_magic, mgs); |
c07a80fd | 57 | |
58 | SvMAGICAL_off(sv); | |
59 | SvREADONLY_off(sv); | |
60 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
c07a80fd | 61 | } |
62 | ||
76e3520e | 63 | STATIC void |
8ac85365 | 64 | restore_magic(void *p) |
c07a80fd | 65 | { |
48e43a1c | 66 | MGS* mgs = (MGS*)p; |
c07a80fd | 67 | SV* sv = mgs->mgs_sv; |
68 | ||
69 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
70 | { | |
71 | if (mgs->mgs_flags) | |
72 | SvFLAGS(sv) |= mgs->mgs_flags; | |
73 | else | |
74 | mg_magical(sv); | |
75 | if (SvGMAGICAL(sv)) | |
76 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
77 | } | |
c07a80fd | 78 | } |
79 | ||
8990e307 | 80 | void |
8ac85365 | 81 | mg_magical(SV *sv) |
8990e307 LW |
82 | { |
83 | MAGIC* mg; | |
84 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
85 | MGVTBL* vtbl = mg->mg_virtual; | |
86 | if (vtbl) { | |
76e3520e | 87 | if ((vtbl->svt_get != NULL) && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
88 | SvGMAGICAL_on(sv); |
89 | if (vtbl->svt_set) | |
90 | SvSMAGICAL_on(sv); | |
76e3520e | 91 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || (vtbl->svt_clear != NULL)) |
8990e307 LW |
92 | SvRMAGICAL_on(sv); |
93 | } | |
94 | } | |
95 | } | |
96 | ||
79072805 | 97 | int |
8ac85365 | 98 | mg_get(SV *sv) |
79072805 | 99 | { |
48e43a1c | 100 | MGS mgs; |
79072805 | 101 | MAGIC* mg; |
c6496cc7 | 102 | MAGIC** mgp; |
760ac839 | 103 | int mgp_valid = 0; |
463ee0b2 | 104 | |
c07a80fd | 105 | ENTER; |
48e43a1c | 106 | save_magic(&mgs, sv); |
463ee0b2 | 107 | |
c6496cc7 | 108 | mgp = &SvMAGIC(sv); |
109 | while ((mg = *mgp) != 0) { | |
79072805 | 110 | MGVTBL* vtbl = mg->mg_virtual; |
76e3520e GS |
111 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && (vtbl->svt_get != NULL)) { |
112 | (VTBL->svt_get)(sv, mg); | |
c6496cc7 | 113 | /* Ignore this magic if it's been deleted */ |
48e43a1c CS |
114 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
115 | (mg->mg_flags & MGf_GSKIP)) | |
116 | mgs.mgs_flags = 0; | |
a0d0e21e | 117 | } |
c6496cc7 | 118 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 119 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 120 | mgp = &mg->mg_moremagic; |
760ac839 LW |
121 | mgp_valid = 1; |
122 | } | |
123 | else | |
124 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 125 | } |
463ee0b2 | 126 | |
c07a80fd | 127 | LEAVE; |
79072805 LW |
128 | return 0; |
129 | } | |
130 | ||
131 | int | |
8ac85365 | 132 | mg_set(SV *sv) |
79072805 | 133 | { |
48e43a1c | 134 | MGS mgs; |
79072805 | 135 | MAGIC* mg; |
463ee0b2 LW |
136 | MAGIC* nextmg; |
137 | ||
c07a80fd | 138 | ENTER; |
48e43a1c | 139 | save_magic(&mgs, sv); |
463ee0b2 LW |
140 | |
141 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 142 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 143 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
144 | if (mg->mg_flags & MGf_GSKIP) { |
145 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
48e43a1c | 146 | mgs.mgs_flags = 0; |
a0d0e21e | 147 | } |
76e3520e GS |
148 | if (vtbl && (vtbl->svt_set != NULL)) |
149 | (VTBL->svt_set)(sv, mg); | |
79072805 | 150 | } |
463ee0b2 | 151 | |
c07a80fd | 152 | LEAVE; |
79072805 LW |
153 | return 0; |
154 | } | |
155 | ||
156 | U32 | |
565764a8 | 157 | mg_length(SV *sv) |
79072805 LW |
158 | { |
159 | MAGIC* mg; | |
748a9306 | 160 | char *junk; |
463ee0b2 | 161 | STRLEN len; |
463ee0b2 | 162 | |
79072805 LW |
163 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
164 | MGVTBL* vtbl = mg->mg_virtual; | |
76e3520e | 165 | if (vtbl && (vtbl->svt_len != NULL)) { |
48e43a1c CS |
166 | MGS mgs; |
167 | ||
c07a80fd | 168 | ENTER; |
48e43a1c | 169 | save_magic(&mgs, sv); |
a0d0e21e | 170 | /* omit MGf_GSKIP -- not changed here */ |
76e3520e | 171 | len = (VTBL->svt_len)(sv, mg); |
c07a80fd | 172 | LEAVE; |
85e6fe83 LW |
173 | return len; |
174 | } | |
175 | } | |
176 | ||
748a9306 | 177 | junk = SvPV(sv, len); |
463ee0b2 | 178 | return len; |
79072805 LW |
179 | } |
180 | ||
93965878 NIS |
181 | I32 |
182 | mg_size(SV *sv) | |
183 | { | |
184 | MAGIC* mg; | |
185 | I32 len; | |
186 | ||
187 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
188 | MGVTBL* vtbl = mg->mg_virtual; | |
565764a8 | 189 | if (vtbl && (vtbl->svt_len != NULL)) { |
93965878 NIS |
190 | MGS mgs; |
191 | ENTER; | |
192 | /* omit MGf_GSKIP -- not changed here */ | |
565764a8 | 193 | len = (VTBL->svt_len)(sv, mg); |
93965878 NIS |
194 | LEAVE; |
195 | return len; | |
196 | } | |
197 | } | |
198 | ||
199 | switch(SvTYPE(sv)) { | |
200 | case SVt_PVAV: | |
201 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
202 | return len; | |
203 | case SVt_PVHV: | |
204 | /* FIXME */ | |
205 | default: | |
206 | croak("Size magic not implemented"); | |
207 | break; | |
208 | } | |
209 | return 0; | |
210 | } | |
211 | ||
79072805 | 212 | int |
8ac85365 | 213 | mg_clear(SV *sv) |
79072805 | 214 | { |
48e43a1c | 215 | MGS mgs; |
79072805 | 216 | MAGIC* mg; |
463ee0b2 | 217 | |
c07a80fd | 218 | ENTER; |
48e43a1c | 219 | save_magic(&mgs, sv); |
463ee0b2 | 220 | |
79072805 LW |
221 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
222 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
223 | /* omit GSKIP -- never set here */ |
224 | ||
76e3520e GS |
225 | if (vtbl && (vtbl->svt_clear != NULL)) |
226 | (VTBL->svt_clear)(sv, mg); | |
79072805 | 227 | } |
463ee0b2 | 228 | |
c07a80fd | 229 | LEAVE; |
79072805 LW |
230 | return 0; |
231 | } | |
232 | ||
93a17b20 | 233 | MAGIC* |
8ac85365 | 234 | mg_find(SV *sv, int type) |
93a17b20 LW |
235 | { |
236 | MAGIC* mg; | |
93a17b20 LW |
237 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
238 | if (mg->mg_type == type) | |
239 | return mg; | |
240 | } | |
241 | return 0; | |
242 | } | |
243 | ||
79072805 | 244 | int |
8ac85365 | 245 | mg_copy(SV *sv, SV *nsv, char *key, I32 klen) |
79072805 | 246 | { |
463ee0b2 | 247 | int count = 0; |
79072805 | 248 | MAGIC* mg; |
463ee0b2 LW |
249 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
250 | if (isUPPER(mg->mg_type)) { | |
a0d0e21e | 251 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 252 | count++; |
79072805 | 253 | } |
79072805 | 254 | } |
463ee0b2 | 255 | return count; |
79072805 LW |
256 | } |
257 | ||
258 | int | |
8ac85365 | 259 | mg_free(SV *sv) |
79072805 LW |
260 | { |
261 | MAGIC* mg; | |
262 | MAGIC* moremagic; | |
263 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
264 | MGVTBL* vtbl = mg->mg_virtual; | |
265 | moremagic = mg->mg_moremagic; | |
76e3520e GS |
266 | if (vtbl && (vtbl->svt_free != NULL)) |
267 | (VTBL->svt_free)(sv, mg); | |
93a17b20 | 268 | if (mg->mg_ptr && mg->mg_type != 'g') |
565764a8 | 269 | if (mg->mg_len >= 0) |
88e89b8a | 270 | Safefree(mg->mg_ptr); |
565764a8 | 271 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 272 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 | 273 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 274 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
275 | Safefree(mg); |
276 | } | |
277 | SvMAGIC(sv) = 0; | |
278 | return 0; | |
279 | } | |
280 | ||
281 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
282 | #include <signal.h> | |
283 | #endif | |
284 | ||
6cef1e77 IZ |
285 | int |
286 | magic_regdata_cnt(SV *sv, MAGIC *mg) | |
287 | { | |
288 | dTHR; | |
289 | register char *s; | |
290 | register I32 i; | |
291 | register REGEXP *rx; | |
292 | char *t; | |
293 | ||
294 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) | |
295 | return rx->lastparen; | |
296 | return -1; | |
297 | } | |
298 | ||
299 | int | |
300 | magic_regdatum_get(SV *sv, MAGIC *mg) | |
301 | { | |
302 | dTHR; | |
303 | register I32 paren; | |
304 | register char *s; | |
305 | register I32 i; | |
306 | register REGEXP *rx; | |
307 | char *t; | |
308 | ||
309 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { | |
310 | paren = mg->mg_len; | |
311 | if (paren < 0) | |
312 | return 0; | |
313 | if (paren <= rx->nparens && | |
314 | (s = rx->startp[paren]) && | |
315 | (t = rx->endp[paren])) | |
316 | { | |
317 | if (mg->mg_obj) /* @+ */ | |
318 | i = t - rx->subbase; | |
319 | else /* @- */ | |
320 | i = s - rx->subbase; | |
321 | sv_setiv(sv,i); | |
322 | } | |
323 | } | |
324 | return 0; | |
325 | } | |
326 | ||
93a17b20 | 327 | U32 |
8ac85365 | 328 | magic_len(SV *sv, MAGIC *mg) |
93a17b20 | 329 | { |
a863c7d1 | 330 | dTHR; |
93a17b20 LW |
331 | register I32 paren; |
332 | register char *s; | |
333 | register I32 i; | |
d9f97599 | 334 | register REGEXP *rx; |
748a9306 | 335 | char *t; |
93a17b20 LW |
336 | |
337 | switch (*mg->mg_ptr) { | |
338 | case '1': case '2': case '3': case '4': | |
339 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 340 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
93a17b20 LW |
341 | paren = atoi(mg->mg_ptr); |
342 | getparen: | |
d9f97599 GS |
343 | if (paren <= rx->nparens && |
344 | (s = rx->startp[paren]) && | |
345 | (t = rx->endp[paren])) | |
bbce6d69 | 346 | { |
748a9306 | 347 | i = t - s; |
71be2cbc | 348 | if (i >= 0) |
93a17b20 | 349 | return i; |
93a17b20 | 350 | } |
93a17b20 | 351 | } |
748a9306 | 352 | return 0; |
93a17b20 | 353 | case '+': |
3280af22 | 354 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 355 | paren = rx->lastparen; |
13f57bf8 CS |
356 | if (paren) |
357 | goto getparen; | |
93a17b20 | 358 | } |
748a9306 | 359 | return 0; |
93a17b20 | 360 | case '`': |
3280af22 | 361 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 GS |
362 | if ((s = rx->subbeg) && rx->startp[0]) { |
363 | i = rx->startp[0] - s; | |
71be2cbc | 364 | if (i >= 0) |
93a17b20 | 365 | return i; |
93a17b20 | 366 | } |
93a17b20 | 367 | } |
748a9306 | 368 | return 0; |
93a17b20 | 369 | case '\'': |
3280af22 | 370 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 GS |
371 | if (rx->subend && (s = rx->endp[0])) { |
372 | i = rx->subend - s; | |
13f57bf8 | 373 | if (i >= 0) |
5cd24f17 | 374 | return i; |
93a17b20 | 375 | } |
93a17b20 | 376 | } |
748a9306 | 377 | return 0; |
93a17b20 | 378 | case ',': |
3280af22 | 379 | return (STRLEN)PL_ofslen; |
93a17b20 | 380 | case '\\': |
3280af22 | 381 | return (STRLEN)PL_orslen; |
93a17b20 LW |
382 | } |
383 | magic_get(sv,mg); | |
384 | if (!SvPOK(sv) && SvNIOK(sv)) | |
3280af22 | 385 | sv_2pv(sv, &PL_na); |
93a17b20 LW |
386 | if (SvPOK(sv)) |
387 | return SvCUR(sv); | |
388 | return 0; | |
389 | } | |
390 | ||
599cee73 PM |
391 | #if 0 |
392 | static char * | |
393 | printW(sv) | |
394 | SV * sv ; | |
395 | { | |
396 | #if 1 | |
397 | return "" ; | |
398 | ||
399 | #else | |
400 | int i ; | |
401 | static char buffer[50] ; | |
402 | char buf1[20] ; | |
403 | char * p ; | |
404 | ||
405 | ||
406 | sprintf(buffer, "Buffer %d, Length = %d - ", sv, SvCUR(sv)) ; | |
407 | p = SvPVX(sv) ; | |
408 | for (i = 0; i < SvCUR(sv) ; ++ i) { | |
409 | sprintf (buf1, " %x [%x]", (p+i), *(p+i)) ; | |
410 | strcat(buffer, buf1) ; | |
411 | } | |
412 | ||
413 | return buffer ; | |
414 | ||
415 | #endif | |
416 | } | |
417 | #endif | |
418 | ||
79072805 | 419 | int |
8ac85365 | 420 | magic_get(SV *sv, MAGIC *mg) |
79072805 | 421 | { |
a863c7d1 | 422 | dTHR; |
79072805 LW |
423 | register I32 paren; |
424 | register char *s; | |
425 | register I32 i; | |
d9f97599 | 426 | register REGEXP *rx; |
748a9306 | 427 | char *t; |
79072805 LW |
428 | |
429 | switch (*mg->mg_ptr) { | |
748a9306 | 430 | case '\001': /* ^A */ |
3280af22 | 431 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 432 | break; |
599cee73 PM |
433 | case '\002': /* ^B */ |
434 | /* printf("magic_get $^B: ") ; */ | |
435 | if (curcop->cop_warnings == WARN_NONE) | |
436 | /* printf("WARN_NONE\n"), */ | |
437 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
438 | else if (curcop->cop_warnings == WARN_ALL) | |
439 | /* printf("WARN_ALL\n"), */ | |
440 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; | |
441 | else | |
442 | /* printf("some %s\n", printW(curcop->cop_warnings)), */ | |
443 | sv_setsv(sv, curcop->cop_warnings); | |
444 | break; | |
79072805 | 445 | case '\004': /* ^D */ |
3280af22 | 446 | sv_setiv(sv, (IV)(PL_debug & 32767)); |
79072805 | 447 | break; |
28f23441 | 448 | case '\005': /* ^E */ |
449 | #ifdef VMS | |
450 | { | |
451 | # include <descrip.h> | |
452 | # include <starlet.h> | |
453 | char msg[255]; | |
454 | $DESCRIPTOR(msgdsc,msg); | |
946ec16e | 455 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 | 456 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
457 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
458 | else | |
459 | sv_setpv(sv,""); | |
460 | } | |
461 | #else | |
88e89b8a | 462 | #ifdef OS2 |
fb73857a | 463 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
464 | sv_setnv(sv, (double)errno); | |
465 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
466 | } else { | |
467 | if (errno != errno_isOS2) | |
468 | Perl_rc = _syserrno(); | |
469 | sv_setnv(sv, (double)Perl_rc); | |
470 | sv_setpv(sv, os2error(Perl_rc)); | |
471 | } | |
88e89b8a | 472 | #else |
22fae026 TM |
473 | #ifdef WIN32 |
474 | { | |
475 | DWORD dwErr = GetLastError(); | |
476 | sv_setnv(sv, (double)dwErr); | |
477 | if (dwErr) | |
76e3520e GS |
478 | { |
479 | #ifdef PERL_OBJECT | |
480 | char *sMsg; | |
481 | DWORD dwLen; | |
482 | PerlProc_GetSysMsg(sMsg, dwLen, dwErr); | |
483 | sv_setpvn(sv, sMsg, dwLen); | |
484 | PerlProc_FreeBuf(sMsg); | |
485 | #else | |
22fae026 | 486 | win32_str_os_error(sv, dwErr); |
76e3520e GS |
487 | #endif |
488 | } | |
22fae026 TM |
489 | else |
490 | sv_setpv(sv, ""); | |
491 | SetLastError(dwErr); | |
492 | } | |
493 | #else | |
946ec16e | 494 | sv_setnv(sv, (double)errno); |
28f23441 | 495 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
496 | #endif | |
88e89b8a | 497 | #endif |
22fae026 | 498 | #endif |
946ec16e | 499 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 500 | break; |
79072805 | 501 | case '\006': /* ^F */ |
3280af22 | 502 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 503 | break; |
a0d0e21e | 504 | case '\010': /* ^H */ |
3280af22 | 505 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 506 | break; |
9d116dd7 | 507 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
508 | if (PL_inplace) |
509 | sv_setpv(sv, PL_inplace); | |
79072805 | 510 | else |
3280af22 | 511 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 512 | break; |
28f23441 | 513 | case '\017': /* ^O */ |
3280af22 | 514 | sv_setpv(sv, PL_osname); |
28f23441 | 515 | break; |
79072805 | 516 | case '\020': /* ^P */ |
3280af22 | 517 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 518 | break; |
fb73857a | 519 | case '\023': /* ^S */ |
d58bf5aa MB |
520 | { |
521 | dTHR; | |
3280af22 | 522 | if (PL_lex_state != LEX_NOTPARSING) |
d58bf5aa | 523 | SvOK_off(sv); |
3280af22 | 524 | else if (PL_in_eval) |
d58bf5aa MB |
525 | sv_setiv(sv, 1); |
526 | else | |
527 | sv_setiv(sv, 0); | |
528 | } | |
fb73857a | 529 | break; |
79072805 | 530 | case '\024': /* ^T */ |
88e89b8a | 531 | #ifdef BIG_TIME |
6b88bc9c | 532 | sv_setnv(sv, PL_basetime); |
88e89b8a | 533 | #else |
3280af22 | 534 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 535 | #endif |
79072805 LW |
536 | break; |
537 | case '\027': /* ^W */ | |
599cee73 | 538 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) == G_WARN_ON)); |
79072805 LW |
539 | break; |
540 | case '1': case '2': case '3': case '4': | |
541 | case '5': case '6': case '7': case '8': case '9': case '&': | |
3280af22 | 542 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
a863c7d1 MB |
543 | /* |
544 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
545 | * XXX Does the new way break anything? | |
546 | */ | |
547 | paren = atoi(mg->mg_ptr); | |
79072805 | 548 | getparen: |
d9f97599 GS |
549 | if (paren <= rx->nparens && |
550 | (s = rx->startp[paren]) && | |
551 | (t = rx->endp[paren])) | |
bbce6d69 | 552 | { |
748a9306 | 553 | i = t - s; |
13f57bf8 | 554 | getrx: |
748a9306 | 555 | if (i >= 0) { |
13f57bf8 | 556 | bool was_tainted; |
3280af22 NIS |
557 | if (PL_tainting) { |
558 | was_tainted = PL_tainted; | |
559 | PL_tainted = FALSE; | |
13f57bf8 | 560 | } |
79072805 | 561 | sv_setpvn(sv,s,i); |
3280af22 NIS |
562 | if (PL_tainting) |
563 | PL_tainted = (was_tainted || RX_MATCH_TAINTED(rx)); | |
748a9306 LW |
564 | break; |
565 | } | |
79072805 | 566 | } |
79072805 | 567 | } |
3280af22 | 568 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
569 | break; |
570 | case '+': | |
3280af22 | 571 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 | 572 | paren = rx->lastparen; |
a0d0e21e LW |
573 | if (paren) |
574 | goto getparen; | |
79072805 | 575 | } |
3280af22 | 576 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
577 | break; |
578 | case '`': | |
3280af22 | 579 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 GS |
580 | if ((s = rx->subbeg) && rx->startp[0]) { |
581 | i = rx->startp[0] - s; | |
13f57bf8 | 582 | goto getrx; |
79072805 | 583 | } |
79072805 | 584 | } |
3280af22 | 585 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
586 | break; |
587 | case '\'': | |
3280af22 | 588 | if (PL_curpm && (rx = PL_curpm->op_pmregexp)) { |
d9f97599 GS |
589 | if (rx->subend && (s = rx->endp[0])) { |
590 | i = rx->subend - s; | |
13f57bf8 | 591 | goto getrx; |
79072805 | 592 | } |
79072805 | 593 | } |
3280af22 | 594 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
595 | break; |
596 | case '.': | |
597 | #ifndef lint | |
3280af22 NIS |
598 | if (GvIO(PL_last_in_gv)) { |
599 | sv_setiv(sv, (IV)IoLINES(GvIO(PL_last_in_gv))); | |
79072805 LW |
600 | } |
601 | #endif | |
602 | break; | |
603 | case '?': | |
809a5acc | 604 | { |
809a5acc | 605 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 606 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
607 | LvTARGOFF(sv) = PL_statusvalue; |
608 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 609 | #endif |
809a5acc | 610 | } |
79072805 LW |
611 | break; |
612 | case '^': | |
3280af22 | 613 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); |
79072805 LW |
614 | if (s) |
615 | sv_setpv(sv,s); | |
616 | else { | |
3280af22 | 617 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
618 | sv_catpv(sv,"_TOP"); |
619 | } | |
620 | break; | |
621 | case '~': | |
3280af22 | 622 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); |
79072805 | 623 | if (!s) |
3280af22 | 624 | s = GvENAME(PL_defoutgv); |
79072805 LW |
625 | sv_setpv(sv,s); |
626 | break; | |
627 | #ifndef lint | |
628 | case '=': | |
3280af22 | 629 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); |
79072805 LW |
630 | break; |
631 | case '-': | |
3280af22 | 632 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); |
79072805 LW |
633 | break; |
634 | case '%': | |
3280af22 | 635 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); |
79072805 LW |
636 | break; |
637 | #endif | |
638 | case ':': | |
639 | break; | |
640 | case '/': | |
641 | break; | |
642 | case '[': | |
3280af22 | 643 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
644 | break; |
645 | case '|': | |
3280af22 | 646 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
647 | break; |
648 | case ',': | |
3280af22 | 649 | sv_setpvn(sv,PL_ofs,PL_ofslen); |
79072805 LW |
650 | break; |
651 | case '\\': | |
3280af22 | 652 | sv_setpvn(sv,PL_ors,PL_orslen); |
79072805 LW |
653 | break; |
654 | case '#': | |
3280af22 | 655 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
656 | break; |
657 | case '!': | |
a5f75d66 | 658 | #ifdef VMS |
946ec16e | 659 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 660 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 661 | #else |
88e89b8a | 662 | { |
663 | int saveerrno = errno; | |
946ec16e | 664 | sv_setnv(sv, (double)errno); |
88e89b8a | 665 | #ifdef OS2 |
666 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
667 | else | |
a5f75d66 | 668 | #endif |
2304df62 | 669 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 670 | errno = saveerrno; |
671 | } | |
672 | #endif | |
946ec16e | 673 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
674 | break; |
675 | case '<': | |
3280af22 | 676 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
677 | break; |
678 | case '>': | |
3280af22 | 679 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
680 | break; |
681 | case '(': | |
3280af22 NIS |
682 | sv_setiv(sv, (IV)PL_gid); |
683 | sv_setpvf(sv, "%Vd", (IV)PL_gid); | |
79072805 LW |
684 | goto add_groups; |
685 | case ')': | |
3280af22 NIS |
686 | sv_setiv(sv, (IV)PL_egid); |
687 | sv_setpvf(sv, "%Vd", (IV)PL_egid); | |
79072805 | 688 | add_groups: |
79072805 | 689 | #ifdef HAS_GETGROUPS |
79072805 | 690 | { |
a0d0e21e | 691 | Groups_t gary[NGROUPS]; |
79072805 | 692 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 693 | while (--i >= 0) |
fc36a67e | 694 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 LW |
695 | } |
696 | #endif | |
29355cf7 | 697 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
698 | break; |
699 | case '*': | |
700 | break; | |
701 | case '0': | |
702 | break; | |
a863c7d1 MB |
703 | #ifdef USE_THREADS |
704 | case '@': | |
38a03e6e | 705 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
706 | break; |
707 | #endif /* USE_THREADS */ | |
79072805 | 708 | } |
a0d0e21e | 709 | return 0; |
79072805 LW |
710 | } |
711 | ||
712 | int | |
8ac85365 | 713 | magic_getuvar(SV *sv, MAGIC *mg) |
79072805 LW |
714 | { |
715 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
716 | ||
717 | if (uf && uf->uf_val) | |
718 | (*uf->uf_val)(uf->uf_index, sv); | |
719 | return 0; | |
720 | } | |
721 | ||
722 | int | |
8ac85365 | 723 | magic_setenv(SV *sv, MAGIC *mg) |
79072805 LW |
724 | { |
725 | register char *s; | |
88e89b8a | 726 | char *ptr; |
5aabfad6 | 727 | STRLEN len, klen; |
a0d0e21e | 728 | I32 i; |
1e422769 | 729 | |
a0d0e21e | 730 | s = SvPV(sv,len); |
5aabfad6 | 731 | ptr = MgPV(mg,klen); |
88e89b8a | 732 | my_setenv(ptr, s); |
1e422769 | 733 | |
a0d0e21e LW |
734 | #ifdef DYNAMIC_ENV_FETCH |
735 | /* We just undefd an environment var. Is a replacement */ | |
736 | /* waiting in the wings? */ | |
737 | if (!len) { | |
5aabfad6 | 738 | SV **valp; |
6b88bc9c | 739 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 740 | s = SvPV(*valp, len); |
a0d0e21e LW |
741 | } |
742 | #endif | |
1e422769 | 743 | |
39e571d4 | 744 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
745 | /* And you'll never guess what the dog had */ |
746 | /* in its mouth... */ | |
3280af22 | 747 | if (PL_tainting) { |
1e422769 | 748 | MgTAINTEDDIR_off(mg); |
749 | #ifdef VMS | |
5aabfad6 | 750 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 751 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
752 | struct stat sbuf; | |
753 | int i = 0, j = 0; | |
754 | ||
755 | do { /* DCL$PATH may be a search list */ | |
756 | while (1) { /* as may dev portion of any element */ | |
757 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
758 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
759 | cando_by_name(S_IWUSR,0,elt) ) { | |
760 | MgTAINTEDDIR_on(mg); | |
761 | return 0; | |
762 | } | |
763 | } | |
764 | if ((cp = strchr(elt, ':')) != Nullch) | |
765 | *cp = '\0'; | |
766 | if (my_trnlnm(elt, eltbuf, j++)) | |
767 | elt = eltbuf; | |
768 | else | |
769 | break; | |
770 | } | |
771 | j = 0; | |
772 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
773 | } | |
774 | #endif /* VMS */ | |
5aabfad6 | 775 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 776 | char *strend = s + len; |
463ee0b2 LW |
777 | |
778 | while (s < strend) { | |
96827780 | 779 | char tmpbuf[256]; |
1e422769 | 780 | struct stat st; |
96827780 | 781 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 782 | s, strend, ':', &i); |
463ee0b2 | 783 | s++; |
96827780 MB |
784 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
785 | || *tmpbuf != '/' | |
c6ed36e1 | 786 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 787 | MgTAINTEDDIR_on(mg); |
1e422769 | 788 | return 0; |
789 | } | |
463ee0b2 | 790 | } |
79072805 LW |
791 | } |
792 | } | |
39e571d4 | 793 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 794 | |
79072805 LW |
795 | return 0; |
796 | } | |
797 | ||
798 | int | |
8ac85365 | 799 | magic_clearenv(SV *sv, MAGIC *mg) |
85e6fe83 | 800 | { |
3280af22 | 801 | my_setenv(MgPV(mg,PL_na),Nullch); |
85e6fe83 LW |
802 | return 0; |
803 | } | |
804 | ||
88e89b8a | 805 | int |
8ac85365 | 806 | magic_set_all_env(SV *sv, MAGIC *mg) |
fb73857a | 807 | { |
808 | #if defined(VMS) | |
809 | die("Can't make list assignment to %%ENV on this system"); | |
810 | #else | |
d58bf5aa | 811 | dTHR; |
3280af22 | 812 | if (PL_localizing) { |
fb73857a | 813 | HE* entry; |
814 | magic_clear_all_env(sv,mg); | |
815 | hv_iterinit((HV*)sv); | |
816 | while (entry = hv_iternext((HV*)sv)) { | |
817 | I32 keylen; | |
818 | my_setenv(hv_iterkey(entry, &keylen), | |
3280af22 | 819 | SvPV(hv_iterval((HV*)sv, entry), PL_na)); |
fb73857a | 820 | } |
821 | } | |
822 | #endif | |
823 | return 0; | |
824 | } | |
825 | ||
826 | int | |
8ac85365 | 827 | magic_clear_all_env(SV *sv, MAGIC *mg) |
66b1d557 | 828 | { |
3e3baf6d TB |
829 | #if defined(VMS) |
830 | die("Can't make list assignment to %%ENV on this system"); | |
831 | #else | |
832 | #ifdef WIN32 | |
833 | char *envv = GetEnvironmentStrings(); | |
834 | char *cur = envv; | |
835 | STRLEN len; | |
836 | while (*cur) { | |
837 | char *end = strchr(cur,'='); | |
838 | if (end && end != cur) { | |
839 | *end = '\0'; | |
840 | my_setenv(cur,Nullch); | |
841 | *end = '='; | |
842 | cur += strlen(end+1)+1; | |
843 | } | |
844 | else if ((len = strlen(cur))) | |
845 | cur += len+1; | |
846 | } | |
847 | FreeEnvironmentStrings(envv); | |
66b1d557 HM |
848 | #else |
849 | I32 i; | |
850 | ||
3280af22 | 851 | if (environ == PL_origenviron) |
66b1d557 HM |
852 | New(901, environ, 1, char*); |
853 | else | |
854 | for (i = 0; environ[i]; i++) | |
855 | Safefree(environ[i]); | |
856 | environ[0] = Nullch; | |
857 | ||
66b1d557 | 858 | #endif |
3e3baf6d TB |
859 | #endif |
860 | return 0; | |
66b1d557 HM |
861 | } |
862 | ||
863 | int | |
8ac85365 | 864 | magic_getsig(SV *sv, MAGIC *mg) |
88e89b8a | 865 | { |
866 | I32 i; | |
867 | /* Are we fetching a signal entry? */ | |
3280af22 | 868 | i = whichsig(MgPV(mg,PL_na)); |
88e89b8a | 869 | if (i) { |
870 | if(psig_ptr[i]) | |
871 | sv_setsv(sv,psig_ptr[i]); | |
872 | else { | |
ff68c719 | 873 | Sighandler_t sigstate = rsignal_state(i); |
874 | ||
88e89b8a | 875 | /* cache state so we don't fetch it again */ |
ff68c719 | 876 | if(sigstate == SIG_IGN) |
88e89b8a | 877 | sv_setpv(sv,"IGNORE"); |
878 | else | |
3280af22 | 879 | sv_setsv(sv,&PL_sv_undef); |
88e89b8a | 880 | psig_ptr[i] = SvREFCNT_inc(sv); |
881 | SvTEMP_off(sv); | |
882 | } | |
883 | } | |
884 | return 0; | |
885 | } | |
886 | int | |
8ac85365 | 887 | magic_clearsig(SV *sv, MAGIC *mg) |
88e89b8a | 888 | { |
889 | I32 i; | |
890 | /* Are we clearing a signal entry? */ | |
3280af22 | 891 | i = whichsig(MgPV(mg,PL_na)); |
88e89b8a | 892 | if (i) { |
893 | if(psig_ptr[i]) { | |
894 | SvREFCNT_dec(psig_ptr[i]); | |
895 | psig_ptr[i]=0; | |
896 | } | |
897 | if(psig_name[i]) { | |
898 | SvREFCNT_dec(psig_name[i]); | |
899 | psig_name[i]=0; | |
900 | } | |
901 | } | |
902 | return 0; | |
903 | } | |
3d37d572 | 904 | |
85e6fe83 | 905 | int |
8ac85365 | 906 | magic_setsig(SV *sv, MAGIC *mg) |
79072805 | 907 | { |
11343788 | 908 | dTHR; |
79072805 LW |
909 | register char *s; |
910 | I32 i; | |
748a9306 | 911 | SV** svp; |
a0d0e21e | 912 | |
3280af22 | 913 | s = MgPV(mg,PL_na); |
748a9306 LW |
914 | if (*s == '_') { |
915 | if (strEQ(s,"__DIE__")) | |
3280af22 | 916 | svp = &PL_diehook; |
748a9306 | 917 | else if (strEQ(s,"__WARN__")) |
3280af22 | 918 | svp = &PL_warnhook; |
748a9306 | 919 | else if (strEQ(s,"__PARSE__")) |
3280af22 | 920 | svp = &PL_parsehook; |
748a9306 LW |
921 | else |
922 | croak("No such hook: %s", s); | |
923 | i = 0; | |
4633a7c4 LW |
924 | if (*svp) { |
925 | SvREFCNT_dec(*svp); | |
926 | *svp = 0; | |
927 | } | |
748a9306 LW |
928 | } |
929 | else { | |
930 | i = whichsig(s); /* ...no, a brick */ | |
931 | if (!i) { | |
599cee73 PM |
932 | if (ckWARN(WARN_SIGNAL) || strEQ(s,"ALARM")) |
933 | warner(WARN_SIGNAL, "No such signal: SIG%s", s); | |
748a9306 LW |
934 | return 0; |
935 | } | |
ff0cee69 | 936 | SvREFCNT_dec(psig_name[i]); |
937 | SvREFCNT_dec(psig_ptr[i]); | |
88e89b8a | 938 | psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 939 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
ff0cee69 | 940 | psig_name[i] = newSVpv(s, strlen(s)); |
88e89b8a | 941 | SvREADONLY_on(psig_name[i]); |
748a9306 | 942 | } |
a0d0e21e | 943 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 944 | if (i) |
3280af22 | 945 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
946 | else |
947 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
948 | return 0; |
949 | } | |
3280af22 | 950 | s = SvPV_force(sv,PL_na); |
748a9306 LW |
951 | if (strEQ(s,"IGNORE")) { |
952 | if (i) | |
ff68c719 | 953 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
954 | else |
955 | *svp = 0; | |
956 | } | |
957 | else if (strEQ(s,"DEFAULT") || !*s) { | |
958 | if (i) | |
ff68c719 | 959 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
960 | else |
961 | *svp = 0; | |
962 | } | |
79072805 | 963 | else { |
5aabfad6 | 964 | /* |
965 | * We should warn if HINT_STRICT_REFS, but without | |
966 | * access to a known hint bit in a known OP, we can't | |
967 | * tell whether HINT_STRICT_REFS is in force or not. | |
968 | */ | |
46fc3d4c | 969 | if (!strchr(s,':') && !strchr(s,'\'')) |
970 | sv_setpv(sv, form("main::%s", s)); | |
748a9306 | 971 | if (i) |
3280af22 | 972 | (void)rsignal(i, PL_sighandlerp); |
748a9306 LW |
973 | else |
974 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
975 | } |
976 | return 0; | |
977 | } | |
978 | ||
979 | int | |
8ac85365 | 980 | magic_setisa(SV *sv, MAGIC *mg) |
79072805 | 981 | { |
3280af22 | 982 | PL_sub_generation++; |
463ee0b2 LW |
983 | return 0; |
984 | } | |
985 | ||
a0d0e21e LW |
986 | #ifdef OVERLOAD |
987 | ||
463ee0b2 | 988 | int |
8ac85365 | 989 | magic_setamagic(SV *sv, MAGIC *mg) |
463ee0b2 | 990 | { |
a0d0e21e | 991 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 992 | PL_amagic_generation++; |
463ee0b2 | 993 | |
a0d0e21e LW |
994 | return 0; |
995 | } | |
996 | #endif /* OVERLOAD */ | |
463ee0b2 | 997 | |
946ec16e | 998 | int |
6ff81951 GS |
999 | magic_getnkeys(SV *sv, MAGIC *mg) |
1000 | { | |
1001 | HV *hv = (HV*)LvTARG(sv); | |
1002 | HE *entry; | |
1003 | I32 i = 0; | |
1004 | ||
1005 | if (hv) { | |
1006 | (void) hv_iterinit(hv); | |
1007 | if (!SvRMAGICAL(hv) || !mg_find((SV*)hv,'P')) | |
1008 | i = HvKEYS(hv); | |
1009 | else { | |
1010 | /*SUPPRESS 560*/ | |
1011 | while (entry = hv_iternext(hv)) { | |
1012 | i++; | |
1013 | } | |
1014 | } | |
1015 | } | |
1016 | ||
1017 | sv_setiv(sv, (IV)i); | |
1018 | return 0; | |
1019 | } | |
1020 | ||
1021 | int | |
8ac85365 | 1022 | magic_setnkeys(SV *sv, MAGIC *mg) |
946ec16e | 1023 | { |
1024 | if (LvTARG(sv)) { | |
1025 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1026 | } |
1027 | return 0; | |
93965878 | 1028 | } |
946ec16e | 1029 | |
e336de0d | 1030 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1031 | STATIC int |
93965878 | 1032 | magic_methcall(MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1033 | { |
1034 | dSP; | |
463ee0b2 | 1035 | |
924508f0 GS |
1036 | PUSHMARK(SP); |
1037 | EXTEND(SP, n); | |
a0d0e21e | 1038 | PUSHs(mg->mg_obj); |
93965878 NIS |
1039 | if (n > 1) { |
1040 | if (mg->mg_ptr) { | |
565764a8 DL |
1041 | if (mg->mg_len >= 0) |
1042 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
1043 | else if (mg->mg_len == HEf_SVKEY) | |
93965878 NIS |
1044 | PUSHs((SV*)mg->mg_ptr); |
1045 | } | |
1046 | else if (mg->mg_type == 'p') { | |
565764a8 | 1047 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1048 | } |
1049 | } | |
1050 | if (n > 2) { | |
1051 | PUSHs(val); | |
88e89b8a | 1052 | } |
463ee0b2 LW |
1053 | PUTBACK; |
1054 | ||
93965878 | 1055 | return perl_call_method(meth, flags); |
946ec16e | 1056 | } |
1057 | ||
76e3520e | 1058 | STATIC int |
8ac85365 | 1059 | magic_methpack(SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1060 | { |
1061 | dSP; | |
463ee0b2 | 1062 | |
a0d0e21e LW |
1063 | ENTER; |
1064 | SAVETMPS; | |
e788e7d3 | 1065 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1066 | |
93965878 | 1067 | if (magic_methcall(mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1068 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1069 | } |
463ee0b2 | 1070 | |
d3acc0f7 | 1071 | POPSTACK; |
a0d0e21e LW |
1072 | FREETMPS; |
1073 | LEAVE; | |
1074 | return 0; | |
1075 | } | |
463ee0b2 | 1076 | |
a0d0e21e | 1077 | int |
8ac85365 | 1078 | magic_getpack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1079 | { |
1080 | magic_methpack(sv,mg,"FETCH"); | |
1081 | if (mg->mg_ptr) | |
1082 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1083 | return 0; |
1084 | } | |
1085 | ||
1086 | int | |
8ac85365 | 1087 | magic_setpack(SV *sv, MAGIC *mg) |
e336de0d GS |
1088 | { |
1089 | dSP; | |
a60c0954 | 1090 | ENTER; |
e788e7d3 | 1091 | PUSHSTACKi(PERLSI_MAGIC); |
93965878 | 1092 | magic_methcall(mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1093 | POPSTACK; |
a60c0954 | 1094 | LEAVE; |
463ee0b2 LW |
1095 | return 0; |
1096 | } | |
1097 | ||
1098 | int | |
8ac85365 | 1099 | magic_clearpack(SV *sv, MAGIC *mg) |
463ee0b2 | 1100 | { |
a0d0e21e LW |
1101 | return magic_methpack(sv,mg,"DELETE"); |
1102 | } | |
463ee0b2 | 1103 | |
93965878 NIS |
1104 | |
1105 | U32 | |
1106 | magic_sizepack(SV *sv, MAGIC *mg) | |
1107 | { | |
e336de0d | 1108 | dSP; |
93965878 NIS |
1109 | U32 retval = 0; |
1110 | ||
1111 | ENTER; | |
1112 | SAVETMPS; | |
e788e7d3 | 1113 | PUSHSTACKi(PERLSI_MAGIC); |
93965878 | 1114 | if (magic_methcall(mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1115 | sv = *PL_stack_sp--; |
a60c0954 | 1116 | retval = (U32) SvIV(sv)-1; |
93965878 | 1117 | } |
d3acc0f7 | 1118 | POPSTACK; |
93965878 NIS |
1119 | FREETMPS; |
1120 | LEAVE; | |
1121 | return retval; | |
1122 | } | |
1123 | ||
8ac85365 | 1124 | int magic_wipepack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1125 | { |
1126 | dSP; | |
463ee0b2 | 1127 | |
e336de0d | 1128 | ENTER; |
e788e7d3 | 1129 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1130 | PUSHMARK(SP); |
a0d0e21e | 1131 | XPUSHs(mg->mg_obj); |
463ee0b2 | 1132 | PUTBACK; |
a0d0e21e | 1133 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1134 | POPSTACK; |
a60c0954 | 1135 | LEAVE; |
463ee0b2 LW |
1136 | return 0; |
1137 | } | |
1138 | ||
1139 | int | |
8ac85365 | 1140 | magic_nextpack(SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1141 | { |
463ee0b2 | 1142 | dSP; |
a0d0e21e | 1143 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1144 | |
1145 | ENTER; | |
a0d0e21e | 1146 | SAVETMPS; |
e788e7d3 | 1147 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1148 | PUSHMARK(SP); |
1149 | EXTEND(SP, 2); | |
a0d0e21e | 1150 | PUSHs(mg->mg_obj); |
463ee0b2 LW |
1151 | if (SvOK(key)) |
1152 | PUSHs(key); | |
1153 | PUTBACK; | |
1154 | ||
a0d0e21e | 1155 | if (perl_call_method(meth, G_SCALAR)) |
3280af22 | 1156 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1157 | |
d3acc0f7 | 1158 | POPSTACK; |
a0d0e21e LW |
1159 | FREETMPS; |
1160 | LEAVE; | |
79072805 LW |
1161 | return 0; |
1162 | } | |
1163 | ||
1164 | int | |
8ac85365 | 1165 | magic_existspack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1166 | { |
1167 | return magic_methpack(sv,mg,"EXISTS"); | |
1168 | } | |
1169 | ||
1170 | int | |
8ac85365 | 1171 | magic_setdbline(SV *sv, MAGIC *mg) |
79072805 | 1172 | { |
11343788 | 1173 | dTHR; |
79072805 LW |
1174 | OP *o; |
1175 | I32 i; | |
1176 | GV* gv; | |
1177 | SV** svp; | |
1178 | ||
3280af22 | 1179 | gv = PL_DBline; |
79072805 | 1180 | i = SvTRUE(sv); |
188ea221 | 1181 | svp = av_fetch(GvAV(gv), |
3280af22 | 1182 | atoi(MgPV(mg,PL_na)), FALSE); |
8990e307 | 1183 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 1184 | o->op_private = i; |
79072805 LW |
1185 | else |
1186 | warn("Can't break at that line\n"); | |
1187 | return 0; | |
1188 | } | |
1189 | ||
1190 | int | |
8ac85365 | 1191 | magic_getarylen(SV *sv, MAGIC *mg) |
79072805 | 1192 | { |
0f15f207 | 1193 | dTHR; |
3280af22 | 1194 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1195 | return 0; |
1196 | } | |
1197 | ||
1198 | int | |
8ac85365 | 1199 | magic_setarylen(SV *sv, MAGIC *mg) |
79072805 | 1200 | { |
0f15f207 | 1201 | dTHR; |
3280af22 | 1202 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1203 | return 0; |
1204 | } | |
1205 | ||
1206 | int | |
8ac85365 | 1207 | magic_getpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1208 | { |
1209 | SV* lsv = LvTARG(sv); | |
1210 | ||
1211 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1212 | mg = mg_find(lsv, 'g'); | |
565764a8 | 1213 | if (mg && mg->mg_len >= 0) { |
0f15f207 | 1214 | dTHR; |
a0ed51b3 LW |
1215 | I32 i = mg->mg_len; |
1216 | if (IN_UTF8) | |
1217 | sv_pos_b2u(lsv, &i); | |
1218 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1219 | return 0; |
1220 | } | |
1221 | } | |
1222 | (void)SvOK_off(sv); | |
1223 | return 0; | |
1224 | } | |
1225 | ||
1226 | int | |
8ac85365 | 1227 | magic_setpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1228 | { |
1229 | SV* lsv = LvTARG(sv); | |
1230 | SSize_t pos; | |
1231 | STRLEN len; | |
a0ed51b3 | 1232 | STRLEN ulen; |
c485e607 | 1233 | dTHR; |
a0d0e21e LW |
1234 | |
1235 | mg = 0; | |
1236 | ||
1237 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1238 | mg = mg_find(lsv, 'g'); | |
1239 | if (!mg) { | |
1240 | if (!SvOK(sv)) | |
1241 | return 0; | |
1242 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1243 | mg = mg_find(lsv, 'g'); | |
1244 | } | |
1245 | else if (!SvOK(sv)) { | |
565764a8 | 1246 | mg->mg_len = -1; |
a0d0e21e LW |
1247 | return 0; |
1248 | } | |
1249 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1250 | ||
c485e607 | 1251 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 LW |
1252 | |
1253 | if (IN_UTF8) { | |
1254 | ulen = sv_len_utf8(lsv); | |
1255 | if (ulen) | |
1256 | len = ulen; | |
1257 | else | |
1258 | ulen = 0; | |
1259 | } | |
1260 | ||
a0d0e21e LW |
1261 | if (pos < 0) { |
1262 | pos += len; | |
1263 | if (pos < 0) | |
1264 | pos = 0; | |
1265 | } | |
1266 | else if (pos > len) | |
1267 | pos = len; | |
a0ed51b3 LW |
1268 | |
1269 | if (ulen) { | |
1270 | I32 p = pos; | |
1271 | sv_pos_u2b(lsv, &p, 0); | |
1272 | pos = p; | |
1273 | } | |
1274 | ||
565764a8 | 1275 | mg->mg_len = pos; |
71be2cbc | 1276 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1277 | |
79072805 LW |
1278 | return 0; |
1279 | } | |
1280 | ||
1281 | int | |
8ac85365 | 1282 | magic_getglob(SV *sv, MAGIC *mg) |
79072805 | 1283 | { |
8646b087 | 1284 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1285 | SvFAKE_off(sv); | |
946ec16e | 1286 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1287 | SvFAKE_on(sv); |
1288 | } | |
1289 | else | |
946ec16e | 1290 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1291 | return 0; |
1292 | } | |
1293 | ||
1294 | int | |
8ac85365 | 1295 | magic_setglob(SV *sv, MAGIC *mg) |
79072805 LW |
1296 | { |
1297 | register char *s; | |
1298 | GV* gv; | |
1299 | ||
1300 | if (!SvOK(sv)) | |
1301 | return 0; | |
3280af22 | 1302 | s = SvPV(sv, PL_na); |
79072805 LW |
1303 | if (*s == '*' && s[1]) |
1304 | s++; | |
85e6fe83 | 1305 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1306 | if (sv == (SV*)gv) |
1307 | return 0; | |
1308 | if (GvGP(sv)) | |
88e89b8a | 1309 | gp_free((GV*)sv); |
79072805 | 1310 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1311 | return 0; |
1312 | } | |
1313 | ||
1314 | int | |
6ff81951 GS |
1315 | magic_getsubstr(SV *sv, MAGIC *mg) |
1316 | { | |
1317 | STRLEN len; | |
1318 | SV *lsv = LvTARG(sv); | |
1319 | char *tmps = SvPV(lsv,len); | |
1320 | I32 offs = LvTARGOFF(sv); | |
1321 | I32 rem = LvTARGLEN(sv); | |
1322 | ||
1323 | if (offs > len) | |
1324 | offs = len; | |
1325 | if (rem + offs > len) | |
1326 | rem = len - offs; | |
1327 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
1328 | return 0; | |
1329 | } | |
1330 | ||
1331 | int | |
8ac85365 | 1332 | magic_setsubstr(SV *sv, MAGIC *mg) |
79072805 | 1333 | { |
8990e307 LW |
1334 | STRLEN len; |
1335 | char *tmps = SvPV(sv,len); | |
1336 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1337 | return 0; |
1338 | } | |
1339 | ||
1340 | int | |
8ac85365 | 1341 | magic_gettaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1342 | { |
a863c7d1 | 1343 | dTHR; |
565764a8 DL |
1344 | TAINT_IF((mg->mg_len & 1) || |
1345 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1346 | return 0; |
1347 | } | |
1348 | ||
1349 | int | |
8ac85365 | 1350 | magic_settaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1351 | { |
11343788 | 1352 | dTHR; |
3280af22 NIS |
1353 | if (PL_localizing) { |
1354 | if (PL_localizing == 1) | |
565764a8 | 1355 | mg->mg_len <<= 1; |
748a9306 | 1356 | else |
565764a8 | 1357 | mg->mg_len >>= 1; |
a0d0e21e | 1358 | } |
3280af22 | 1359 | else if (PL_tainted) |
565764a8 | 1360 | mg->mg_len |= 1; |
748a9306 | 1361 | else |
565764a8 | 1362 | mg->mg_len &= ~1; |
463ee0b2 LW |
1363 | return 0; |
1364 | } | |
1365 | ||
1366 | int | |
6ff81951 GS |
1367 | magic_getvec(SV *sv, MAGIC *mg) |
1368 | { | |
1369 | SV *lsv = LvTARG(sv); | |
1370 | unsigned char *s; | |
1371 | unsigned long retnum; | |
1372 | STRLEN lsvlen; | |
1373 | I32 len; | |
1374 | I32 offset; | |
1375 | I32 size; | |
1376 | ||
1377 | if (!lsv) { | |
1378 | SvOK_off(sv); | |
1379 | return 0; | |
1380 | } | |
1381 | s = (unsigned char *) SvPV(lsv, lsvlen); | |
1382 | offset = LvTARGOFF(sv); | |
1383 | size = LvTARGLEN(sv); | |
1384 | len = (offset + size + 7) / 8; | |
1385 | ||
1386 | /* Copied from pp_vec() */ | |
1387 | ||
1388 | if (len > lsvlen) { | |
1389 | if (size <= 8) | |
1390 | retnum = 0; | |
1391 | else { | |
1392 | offset >>= 3; | |
1393 | if (size == 16) { | |
1394 | if (offset >= lsvlen) | |
1395 | retnum = 0; | |
1396 | else | |
1397 | retnum = (unsigned long) s[offset] << 8; | |
1398 | } | |
1399 | else if (size == 32) { | |
1400 | if (offset >= lsvlen) | |
1401 | retnum = 0; | |
1402 | else if (offset + 1 >= lsvlen) | |
1403 | retnum = (unsigned long) s[offset] << 24; | |
1404 | else if (offset + 2 >= lsvlen) | |
1405 | retnum = ((unsigned long) s[offset] << 24) + | |
1406 | ((unsigned long) s[offset + 1] << 16); | |
1407 | else | |
1408 | retnum = ((unsigned long) s[offset] << 24) + | |
1409 | ((unsigned long) s[offset + 1] << 16) + | |
1410 | (s[offset + 2] << 8); | |
1411 | } | |
1412 | } | |
1413 | } | |
1414 | else if (size < 8) | |
1415 | retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1); | |
1416 | else { | |
1417 | offset >>= 3; | |
1418 | if (size == 8) | |
1419 | retnum = s[offset]; | |
1420 | else if (size == 16) | |
1421 | retnum = ((unsigned long) s[offset] << 8) + s[offset+1]; | |
1422 | else if (size == 32) | |
1423 | retnum = ((unsigned long) s[offset] << 24) + | |
1424 | ((unsigned long) s[offset + 1] << 16) + | |
1425 | (s[offset + 2] << 8) + s[offset+3]; | |
1426 | } | |
1427 | ||
1428 | sv_setuv(sv, (UV)retnum); | |
1429 | return 0; | |
1430 | } | |
1431 | ||
1432 | int | |
8ac85365 | 1433 | magic_setvec(SV *sv, MAGIC *mg) |
79072805 LW |
1434 | { |
1435 | do_vecset(sv); /* XXX slurp this routine */ | |
1436 | return 0; | |
1437 | } | |
1438 | ||
1439 | int | |
8ac85365 | 1440 | magic_getdefelem(SV *sv, MAGIC *mg) |
5f05dabc | 1441 | { |
71be2cbc | 1442 | SV *targ = Nullsv; |
5f05dabc | 1443 | if (LvTARGLEN(sv)) { |
68dc0745 | 1444 | if (mg->mg_obj) { |
74e13ce4 GS |
1445 | SV *ahv = LvTARG(sv); |
1446 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1447 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1448 | if (he) | |
1449 | targ = HeVAL(he); | |
1450 | } | |
1451 | else { | |
1452 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1453 | if (svp) | |
1454 | targ = *svp; | |
1455 | } | |
68dc0745 | 1456 | } |
1457 | else { | |
3c78fafa | 1458 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1459 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1460 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1461 | } | |
3280af22 | 1462 | if (targ && targ != &PL_sv_undef) { |
e858de61 | 1463 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 | 1464 | /* somebody else defined it for us */ |
1465 | SvREFCNT_dec(LvTARG(sv)); | |
1466 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1467 | LvTARGLEN(sv) = 0; | |
1468 | SvREFCNT_dec(mg->mg_obj); | |
1469 | mg->mg_obj = Nullsv; | |
1470 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1471 | } | |
5f05dabc | 1472 | } |
71be2cbc | 1473 | else |
1474 | targ = LvTARG(sv); | |
3280af22 | 1475 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1476 | return 0; |
1477 | } | |
1478 | ||
1479 | int | |
8ac85365 | 1480 | magic_setdefelem(SV *sv, MAGIC *mg) |
71be2cbc | 1481 | { |
1482 | if (LvTARGLEN(sv)) | |
68dc0745 | 1483 | vivify_defelem(sv); |
1484 | if (LvTARG(sv)) { | |
5f05dabc | 1485 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1486 | SvSETMAGIC(LvTARG(sv)); |
1487 | } | |
5f05dabc | 1488 | return 0; |
1489 | } | |
1490 | ||
71be2cbc | 1491 | void |
8ac85365 | 1492 | vivify_defelem(SV *sv) |
71be2cbc | 1493 | { |
e858de61 | 1494 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
74e13ce4 GS |
1495 | MAGIC *mg; |
1496 | SV *value = Nullsv; | |
71be2cbc | 1497 | |
68dc0745 | 1498 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1499 | return; |
68dc0745 | 1500 | if (mg->mg_obj) { |
74e13ce4 GS |
1501 | SV *ahv = LvTARG(sv); |
1502 | if (SvTYPE(ahv) == SVt_PVHV) { | |
af7f9c15 | 1503 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1504 | if (he) |
1505 | value = HeVAL(he); | |
1506 | } | |
1507 | else { | |
af7f9c15 | 1508 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, TRUE, 0); |
74e13ce4 GS |
1509 | if (svp) |
1510 | value = *svp; | |
1511 | } | |
3280af22 NIS |
1512 | if (!value || value == &PL_sv_undef) |
1513 | croak(no_helem, SvPV(mg->mg_obj, PL_na)); | |
71be2cbc | 1514 | } |
68dc0745 | 1515 | else { |
1516 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1517 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1518 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1519 | else { | |
1520 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1521 | if (!svp || (value = *svp) == &PL_sv_undef) |
68dc0745 | 1522 | croak(no_aelem, (I32)LvTARGOFF(sv)); |
1523 | } | |
1524 | } | |
3e3baf6d | 1525 | (void)SvREFCNT_inc(value); |
68dc0745 | 1526 | SvREFCNT_dec(LvTARG(sv)); |
1527 | LvTARG(sv) = value; | |
71be2cbc | 1528 | LvTARGLEN(sv) = 0; |
68dc0745 | 1529 | SvREFCNT_dec(mg->mg_obj); |
1530 | mg->mg_obj = Nullsv; | |
1531 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1532 | } |
1533 | ||
1534 | int | |
8ac85365 | 1535 | magic_setmglob(SV *sv, MAGIC *mg) |
93a17b20 | 1536 | { |
565764a8 | 1537 | mg->mg_len = -1; |
c6496cc7 | 1538 | SvSCREAM_off(sv); |
93a17b20 LW |
1539 | return 0; |
1540 | } | |
1541 | ||
1542 | int | |
8ac85365 | 1543 | magic_setbm(SV *sv, MAGIC *mg) |
79072805 | 1544 | { |
463ee0b2 | 1545 | sv_unmagic(sv, 'B'); |
79072805 LW |
1546 | SvVALID_off(sv); |
1547 | return 0; | |
1548 | } | |
1549 | ||
1550 | int | |
8ac85365 | 1551 | magic_setfm(SV *sv, MAGIC *mg) |
55497cff | 1552 | { |
1553 | sv_unmagic(sv, 'f'); | |
1554 | SvCOMPILED_off(sv); | |
1555 | return 0; | |
1556 | } | |
1557 | ||
1558 | int | |
8ac85365 | 1559 | magic_setuvar(SV *sv, MAGIC *mg) |
79072805 LW |
1560 | { |
1561 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1562 | ||
1563 | if (uf && uf->uf_set) | |
1564 | (*uf->uf_set)(uf->uf_index, sv); | |
1565 | return 0; | |
1566 | } | |
1567 | ||
c277df42 IZ |
1568 | int |
1569 | magic_freeregexp(SV *sv, MAGIC *mg) | |
1570 | { | |
1571 | regexp *re = (regexp *)mg->mg_obj; | |
1572 | ReREFCNT_dec(re); | |
1573 | return 0; | |
1574 | } | |
1575 | ||
7a4c00b4 | 1576 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1577 | int |
8ac85365 | 1578 | magic_setcollxfrm(SV *sv, MAGIC *mg) |
bbce6d69 | 1579 | { |
1580 | /* | |
1581 | * René Descartes said "I think not." | |
1582 | * and vanished with a faint plop. | |
1583 | */ | |
7a4c00b4 | 1584 | if (mg->mg_ptr) { |
1585 | Safefree(mg->mg_ptr); | |
1586 | mg->mg_ptr = NULL; | |
565764a8 | 1587 | mg->mg_len = -1; |
7a4c00b4 | 1588 | } |
bbce6d69 | 1589 | return 0; |
1590 | } | |
7a4c00b4 | 1591 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1592 | |
1593 | int | |
8ac85365 | 1594 | magic_set(SV *sv, MAGIC *mg) |
79072805 | 1595 | { |
11343788 | 1596 | dTHR; |
79072805 LW |
1597 | register char *s; |
1598 | I32 i; | |
8990e307 | 1599 | STRLEN len; |
79072805 | 1600 | switch (*mg->mg_ptr) { |
748a9306 | 1601 | case '\001': /* ^A */ |
3280af22 | 1602 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 1603 | break; |
599cee73 PM |
1604 | case '\002': /* ^B */ |
1605 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
1606 | if (memEQ(SvPVX(sv), WARN_ALLstring, WARNsize)) | |
1607 | compiling.cop_warnings = WARN_ALL; | |
1608 | else if (memEQ(SvPVX(sv), WARN_NONEstring, WARNsize)) | |
1609 | compiling.cop_warnings = WARN_NONE; | |
1610 | else { | |
1611 | if (compiling.cop_warnings != WARN_NONE && | |
1612 | compiling.cop_warnings != WARN_ALL) | |
1613 | sv_setsv(compiling.cop_warnings, sv); | |
1614 | else | |
1615 | compiling.cop_warnings = newSVsv(sv) ; | |
1616 | } | |
1617 | } | |
1618 | break; | |
79072805 | 1619 | case '\004': /* ^D */ |
3280af22 | 1620 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1621 | DEBUG_x(dump_all()); |
1622 | break; | |
28f23441 | 1623 | case '\005': /* ^E */ |
1624 | #ifdef VMS | |
1625 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1626 | #else | |
22fae026 TM |
1627 | #ifdef WIN32 |
1628 | SetLastError( SvIV(sv) ); | |
1629 | #else | |
f86702cc | 1630 | /* will anyone ever use this? */ |
1631 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
28f23441 | 1632 | #endif |
22fae026 | 1633 | #endif |
28f23441 | 1634 | break; |
79072805 | 1635 | case '\006': /* ^F */ |
3280af22 | 1636 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1637 | break; |
a0d0e21e | 1638 | case '\010': /* ^H */ |
3280af22 | 1639 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 1640 | break; |
9d116dd7 | 1641 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
1642 | if (PL_inplace) |
1643 | Safefree(PL_inplace); | |
79072805 | 1644 | if (SvOK(sv)) |
3280af22 | 1645 | PL_inplace = savepv(SvPV(sv,PL_na)); |
79072805 | 1646 | else |
3280af22 | 1647 | PL_inplace = Nullch; |
79072805 | 1648 | break; |
28f23441 | 1649 | case '\017': /* ^O */ |
3280af22 NIS |
1650 | if (PL_osname) |
1651 | Safefree(PL_osname); | |
28f23441 | 1652 | if (SvOK(sv)) |
3280af22 | 1653 | PL_osname = savepv(SvPV(sv,PL_na)); |
28f23441 | 1654 | else |
3280af22 | 1655 | PL_osname = Nullch; |
28f23441 | 1656 | break; |
79072805 | 1657 | case '\020': /* ^P */ |
3280af22 | 1658 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1659 | break; |
1660 | case '\024': /* ^T */ | |
88e89b8a | 1661 | #ifdef BIG_TIME |
6b88bc9c | 1662 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 1663 | #else |
3280af22 | 1664 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1665 | #endif |
79072805 LW |
1666 | break; |
1667 | case '\027': /* ^W */ | |
599cee73 PM |
1668 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
1669 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1670 | PL_dowarn = (i ? G_WARN_ON : G_WARN_OFF) ; | |
1671 | } | |
79072805 LW |
1672 | break; |
1673 | case '.': | |
3280af22 NIS |
1674 | if (PL_localizing) { |
1675 | if (PL_localizing == 1) | |
1676 | save_sptr((SV**)&PL_last_in_gv); | |
748a9306 | 1677 | } |
3280af22 NIS |
1678 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
1679 | IoLINES(GvIOp(PL_last_in_gv)) = (long)SvIV(sv); | |
79072805 LW |
1680 | break; |
1681 | case '^': | |
3280af22 NIS |
1682 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
1683 | IoTOP_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,PL_na)); | |
1684 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1685 | break; |
1686 | case '~': | |
3280af22 NIS |
1687 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
1688 | IoFMT_NAME(GvIOp(PL_defoutgv)) = s = savepv(SvPV(sv,PL_na)); | |
1689 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1690 | break; |
1691 | case '=': | |
3280af22 | 1692 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1693 | break; |
1694 | case '-': | |
3280af22 NIS |
1695 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1696 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) | |
1697 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
1698 | break; |
1699 | case '%': | |
3280af22 | 1700 | IoPAGE(GvIOp(PL_defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1701 | break; |
1702 | case '|': | |
4b65379b | 1703 | { |
3280af22 | 1704 | IO *io = GvIOp(PL_defoutgv); |
4b65379b CS |
1705 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
1706 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1707 | else { | |
1708 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1709 | PerlIO *ofp = IoOFP(io); | |
1710 | if (ofp) | |
1711 | (void)PerlIO_flush(ofp); | |
1712 | IoFLAGS(io) |= IOf_FLUSH; | |
1713 | } | |
1714 | } | |
79072805 LW |
1715 | } |
1716 | break; | |
1717 | case '*': | |
463ee0b2 | 1718 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
3280af22 | 1719 | PL_multiline = (i != 0); |
79072805 LW |
1720 | break; |
1721 | case '/': | |
3280af22 NIS |
1722 | SvREFCNT_dec(PL_nrs); |
1723 | PL_nrs = newSVsv(sv); | |
1724 | SvREFCNT_dec(PL_rs); | |
1725 | PL_rs = SvREFCNT_inc(PL_nrs); | |
79072805 LW |
1726 | break; |
1727 | case '\\': | |
3280af22 NIS |
1728 | if (PL_ors) |
1729 | Safefree(PL_ors); | |
e3c19b7b | 1730 | if (SvOK(sv) || SvGMAGICAL(sv)) |
3280af22 | 1731 | PL_ors = savepv(SvPV(sv,PL_orslen)); |
e3c19b7b | 1732 | else { |
3280af22 NIS |
1733 | PL_ors = Nullch; |
1734 | PL_orslen = 0; | |
e3c19b7b | 1735 | } |
79072805 LW |
1736 | break; |
1737 | case ',': | |
3280af22 NIS |
1738 | if (PL_ofs) |
1739 | Safefree(PL_ofs); | |
1740 | PL_ofs = savepv(SvPV(sv, PL_ofslen)); | |
79072805 LW |
1741 | break; |
1742 | case '#': | |
3280af22 NIS |
1743 | if (PL_ofmt) |
1744 | Safefree(PL_ofmt); | |
1745 | PL_ofmt = savepv(SvPV(sv,PL_na)); | |
79072805 LW |
1746 | break; |
1747 | case '[': | |
3280af22 | 1748 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1749 | break; |
1750 | case '?': | |
ff0cee69 | 1751 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
1752 | if (PL_localizing == 2) { |
1753 | PL_statusvalue = LvTARGOFF(sv); | |
1754 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 1755 | } |
1756 | else | |
1757 | #endif | |
1758 | #ifdef VMSISH_STATUS | |
1759 | if (VMSISH_STATUS) | |
1760 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1761 | else | |
1762 | #endif | |
1763 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1764 | break; |
1765 | case '!': | |
78987ded | 1766 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1767 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1768 | break; |
1769 | case '<': | |
3280af22 NIS |
1770 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1771 | if (PL_delaymagic) { | |
1772 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
1773 | break; /* don't do magic till later */ |
1774 | } | |
1775 | #ifdef HAS_SETRUID | |
b28d0864 | 1776 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
1777 | #else |
1778 | #ifdef HAS_SETREUID | |
3280af22 | 1779 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 1780 | #else |
85e6fe83 | 1781 | #ifdef HAS_SETRESUID |
b28d0864 | 1782 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 1783 | #else |
b28d0864 NIS |
1784 | if (PL_uid == PL_euid) /* special case $< = $> */ |
1785 | (void)PerlProc_setuid(PL_uid); | |
a0d0e21e | 1786 | else { |
b28d0864 | 1787 | PL_uid = (I32)PerlProc_getuid(); |
463ee0b2 | 1788 | croak("setruid() not implemented"); |
a0d0e21e | 1789 | } |
79072805 LW |
1790 | #endif |
1791 | #endif | |
85e6fe83 | 1792 | #endif |
3280af22 NIS |
1793 | PL_uid = (I32)PerlProc_getuid(); |
1794 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1795 | break; |
1796 | case '>': | |
3280af22 NIS |
1797 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1798 | if (PL_delaymagic) { | |
1799 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
1800 | break; /* don't do magic till later */ |
1801 | } | |
1802 | #ifdef HAS_SETEUID | |
3280af22 | 1803 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
1804 | #else |
1805 | #ifdef HAS_SETREUID | |
b28d0864 | 1806 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
1807 | #else |
1808 | #ifdef HAS_SETRESUID | |
6b88bc9c | 1809 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 1810 | #else |
b28d0864 NIS |
1811 | if (PL_euid == PL_uid) /* special case $> = $< */ |
1812 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 1813 | else { |
b28d0864 | 1814 | PL_euid = (I32)PerlProc_geteuid(); |
463ee0b2 | 1815 | croak("seteuid() not implemented"); |
a0d0e21e | 1816 | } |
79072805 LW |
1817 | #endif |
1818 | #endif | |
85e6fe83 | 1819 | #endif |
3280af22 NIS |
1820 | PL_euid = (I32)PerlProc_geteuid(); |
1821 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1822 | break; |
1823 | case '(': | |
3280af22 NIS |
1824 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1825 | if (PL_delaymagic) { | |
1826 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
1827 | break; /* don't do magic till later */ |
1828 | } | |
1829 | #ifdef HAS_SETRGID | |
b28d0864 | 1830 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
1831 | #else |
1832 | #ifdef HAS_SETREGID | |
3280af22 | 1833 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
1834 | #else |
1835 | #ifdef HAS_SETRESGID | |
b28d0864 | 1836 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 1837 | #else |
b28d0864 NIS |
1838 | if (PL_gid == PL_egid) /* special case $( = $) */ |
1839 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 1840 | else { |
b28d0864 | 1841 | PL_gid = (I32)PerlProc_getgid(); |
463ee0b2 | 1842 | croak("setrgid() not implemented"); |
748a9306 | 1843 | } |
79072805 LW |
1844 | #endif |
1845 | #endif | |
85e6fe83 | 1846 | #endif |
3280af22 NIS |
1847 | PL_gid = (I32)PerlProc_getgid(); |
1848 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1849 | break; |
1850 | case ')': | |
5cd24f17 | 1851 | #ifdef HAS_SETGROUPS |
1852 | { | |
3280af22 | 1853 | char *p = SvPV(sv, PL_na); |
5cd24f17 | 1854 | Groups_t gary[NGROUPS]; |
1855 | ||
1856 | SET_NUMERIC_STANDARD(); | |
1857 | while (isSPACE(*p)) | |
1858 | ++p; | |
3280af22 | 1859 | PL_egid = I_V(atof(p)); |
5cd24f17 | 1860 | for (i = 0; i < NGROUPS; ++i) { |
1861 | while (*p && !isSPACE(*p)) | |
1862 | ++p; | |
1863 | while (isSPACE(*p)) | |
1864 | ++p; | |
1865 | if (!*p) | |
1866 | break; | |
1867 | gary[i] = I_V(atof(p)); | |
1868 | } | |
8cc95fdb | 1869 | if (i) |
1870 | (void)setgroups(i, gary); | |
5cd24f17 | 1871 | } |
1872 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 1873 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1874 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
1875 | if (PL_delaymagic) { |
1876 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
1877 | break; /* don't do magic till later */ |
1878 | } | |
1879 | #ifdef HAS_SETEGID | |
3280af22 | 1880 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
1881 | #else |
1882 | #ifdef HAS_SETREGID | |
b28d0864 | 1883 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
1884 | #else |
1885 | #ifdef HAS_SETRESGID | |
b28d0864 | 1886 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 1887 | #else |
b28d0864 NIS |
1888 | if (PL_egid == PL_gid) /* special case $) = $( */ |
1889 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 1890 | else { |
b28d0864 | 1891 | PL_egid = (I32)PerlProc_getegid(); |
463ee0b2 | 1892 | croak("setegid() not implemented"); |
748a9306 | 1893 | } |
79072805 LW |
1894 | #endif |
1895 | #endif | |
85e6fe83 | 1896 | #endif |
3280af22 NIS |
1897 | PL_egid = (I32)PerlProc_getegid(); |
1898 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
79072805 LW |
1899 | break; |
1900 | case ':': | |
3280af22 | 1901 | PL_chopset = SvPV_force(sv,PL_na); |
79072805 LW |
1902 | break; |
1903 | case '0': | |
3280af22 NIS |
1904 | if (!PL_origalen) { |
1905 | s = PL_origargv[0]; | |
79072805 LW |
1906 | s += strlen(s); |
1907 | /* See if all the arguments are contiguous in memory */ | |
3280af22 NIS |
1908 | for (i = 1; i < PL_origargc; i++) { |
1909 | if (PL_origargv[i] == s + 1 | |
fb73857a | 1910 | #ifdef OS2 |
6b88bc9c | 1911 | || PL_origargv[i] == s + 2 |
fb73857a | 1912 | #endif |
1913 | ) | |
79072805 | 1914 | s += strlen(++s); /* this one is ok too */ |
fb73857a | 1915 | else |
1916 | break; | |
79072805 | 1917 | } |
bbce6d69 | 1918 | /* can grab env area too? */ |
3280af22 | 1919 | if (PL_origenviron && (PL_origenviron[0] == s + 1 |
fb73857a | 1920 | #ifdef OS2 |
6b88bc9c | 1921 | || (PL_origenviron[0] == s + 9 && (s += 8)) |
fb73857a | 1922 | #endif |
1923 | )) { | |
66b1d557 | 1924 | my_setenv("NoNe SuCh", Nullch); |
79072805 | 1925 | /* force copy of environment */ |
3280af22 NIS |
1926 | for (i = 0; PL_origenviron[i]; i++) |
1927 | if (PL_origenviron[i] == s + 1) | |
79072805 | 1928 | s += strlen(++s); |
fb73857a | 1929 | else |
1930 | break; | |
79072805 | 1931 | } |
3280af22 | 1932 | PL_origalen = s - PL_origargv[0]; |
79072805 | 1933 | } |
a0d0e21e | 1934 | s = SvPV_force(sv,len); |
8990e307 | 1935 | i = len; |
3280af22 NIS |
1936 | if (i >= PL_origalen) { |
1937 | i = PL_origalen; | |
fb73857a | 1938 | /* don't allow system to limit $0 seen by script */ |
1939 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
3280af22 NIS |
1940 | Copy(s, PL_origargv[0], i, char); |
1941 | s = PL_origargv[0]+i; | |
fb73857a | 1942 | *s = '\0'; |
79072805 LW |
1943 | } |
1944 | else { | |
3280af22 NIS |
1945 | Copy(s, PL_origargv[0], i, char); |
1946 | s = PL_origargv[0]+i; | |
79072805 | 1947 | *s++ = '\0'; |
3280af22 | 1948 | while (++i < PL_origalen) |
8990e307 | 1949 | *s++ = ' '; |
3280af22 NIS |
1950 | s = PL_origargv[0]+i; |
1951 | for (i = 1; i < PL_origargc; i++) | |
1952 | PL_origargv[i] = Nullch; | |
79072805 LW |
1953 | } |
1954 | break; | |
a863c7d1 MB |
1955 | #ifdef USE_THREADS |
1956 | case '@': | |
38a03e6e | 1957 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
1958 | break; |
1959 | #endif /* USE_THREADS */ | |
79072805 LW |
1960 | } |
1961 | return 0; | |
1962 | } | |
1963 | ||
f93b4edd MB |
1964 | #ifdef USE_THREADS |
1965 | int | |
8ac85365 | 1966 | magic_mutexfree(SV *sv, MAGIC *mg) |
f93b4edd MB |
1967 | { |
1968 | dTHR; | |
8b73bbec | 1969 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
bc1f4c86 | 1970 | (unsigned long)thr, (unsigned long)sv);) |
f93b4edd MB |
1971 | if (MgOWNER(mg)) |
1972 | croak("panic: magic_mutexfree"); | |
1973 | MUTEX_DESTROY(MgMUTEXP(mg)); | |
1974 | COND_DESTROY(MgCONDP(mg)); | |
e55aaa0e | 1975 | SvREFCNT_dec(sv); |
f93b4edd MB |
1976 | return 0; |
1977 | } | |
1978 | #endif /* USE_THREADS */ | |
1979 | ||
79072805 | 1980 | I32 |
8ac85365 | 1981 | whichsig(char *sig) |
79072805 LW |
1982 | { |
1983 | register char **sigv; | |
1984 | ||
1985 | for (sigv = sig_name+1; *sigv; sigv++) | |
1986 | if (strEQ(sig,*sigv)) | |
8e07c86e | 1987 | return sig_num[sigv - sig_name]; |
79072805 LW |
1988 | #ifdef SIGCLD |
1989 | if (strEQ(sig,"CHLD")) | |
1990 | return SIGCLD; | |
1991 | #endif | |
1992 | #ifdef SIGCHLD | |
1993 | if (strEQ(sig,"CLD")) | |
1994 | return SIGCHLD; | |
1995 | #endif | |
1996 | return 0; | |
1997 | } | |
1998 | ||
84902520 TB |
1999 | static SV* sig_sv; |
2000 | ||
76e3520e | 2001 | STATIC void |
8ac85365 | 2002 | unwind_handler_stack(void *p) |
84902520 | 2003 | { |
ff26ac79 | 2004 | dTHR; |
84902520 TB |
2005 | U32 flags = *(U32*)p; |
2006 | ||
2007 | if (flags & 1) | |
3280af22 | 2008 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ |
84902520 TB |
2009 | /* cxstack_ix-- Not needed, die already unwound it. */ |
2010 | if (flags & 64) | |
2011 | SvREFCNT_dec(sig_sv); | |
2012 | } | |
2013 | ||
ecfc5424 | 2014 | Signal_t |
8ac85365 | 2015 | sighandler(int sig) |
79072805 LW |
2016 | { |
2017 | dSP; | |
00d579c5 | 2018 | GV *gv = Nullgv; |
a0d0e21e | 2019 | HV *st; |
3280af22 | 2020 | SV *sv, *tSv = PL_Sv; |
00d579c5 | 2021 | CV *cv = Nullcv; |
533c011a | 2022 | OP *myop = PL_op; |
84902520 | 2023 | U32 flags = 0; |
3280af22 NIS |
2024 | I32 o_save_i = PL_savestack_ix, type; |
2025 | XPV *tXpv = PL_Xpv; | |
84902520 | 2026 | |
3280af22 | 2027 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2028 | flags |= 1; |
3280af22 | 2029 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2030 | flags |= 4; |
3280af22 | 2031 | if (PL_retstack_ix < PL_retstack_max - 2) |
84902520 | 2032 | flags |= 8; |
3280af22 | 2033 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2034 | flags |= 16; |
2035 | ||
ff0cee69 | 2036 | if (!psig_ptr[sig]) |
2037 | die("Signal SIG%s received, but no signal handler set.\n", | |
2038 | sig_name[sig]); | |
2039 | ||
84902520 TB |
2040 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2041 | infinity, so we fix 4 (in fact 5): */ | |
2042 | if (flags & 1) { | |
3280af22 NIS |
2043 | PL_savestack_ix += 5; /* Protect save in progress. */ |
2044 | o_save_i = PL_savestack_ix; | |
565764a8 | 2045 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); |
84902520 TB |
2046 | } |
2047 | if (flags & 4) | |
3280af22 | 2048 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2049 | if (flags & 8) { |
3280af22 NIS |
2050 | PL_retstack_ix++; |
2051 | PL_retstack[PL_retstack_ix] = NULL; | |
84902520 TB |
2052 | } |
2053 | if (flags & 16) | |
3280af22 | 2054 | PL_scopestack_ix += 1; |
84902520 TB |
2055 | /* sv_2cv is too complicated, try a simpler variant first: */ |
2056 | if (!SvROK(psig_ptr[sig]) || !(cv = (CV*)SvRV(psig_ptr[sig])) | |
2057 | || SvTYPE(cv) != SVt_PVCV) | |
2058 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); | |
2059 | ||
a0d0e21e | 2060 | if (!cv || !CvROOT(cv)) { |
599cee73 PM |
2061 | if (ckWARN(WARN_SIGNAL)) |
2062 | warner(WARN_SIGNAL, "SIG%s handler \"%s\" not defined.\n", | |
00d579c5 GS |
2063 | sig_name[sig], (gv ? GvENAME(gv) |
2064 | : ((cv && CvGV(cv)) | |
2065 | ? GvENAME(CvGV(cv)) | |
2066 | : "__ANON__"))); | |
2067 | goto cleanup; | |
79072805 LW |
2068 | } |
2069 | ||
84902520 | 2070 | if(psig_name[sig]) { |
88e89b8a | 2071 | sv = SvREFCNT_inc(psig_name[sig]); |
84902520 TB |
2072 | flags |= 64; |
2073 | sig_sv = sv; | |
2074 | } else { | |
ff0cee69 | 2075 | sv = sv_newmortal(); |
2076 | sv_setpv(sv,sig_name[sig]); | |
88e89b8a | 2077 | } |
e336de0d | 2078 | |
e788e7d3 | 2079 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2080 | PUSHMARK(SP); |
79072805 | 2081 | PUSHs(sv); |
79072805 | 2082 | PUTBACK; |
a0d0e21e LW |
2083 | |
2084 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 | 2085 | |
d3acc0f7 | 2086 | POPSTACK; |
00d579c5 | 2087 | cleanup: |
84902520 | 2088 | if (flags & 1) |
3280af22 | 2089 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
84902520 | 2090 | if (flags & 4) |
3280af22 | 2091 | PL_markstack_ptr--; |
84902520 | 2092 | if (flags & 8) |
3280af22 | 2093 | PL_retstack_ix--; |
84902520 | 2094 | if (flags & 16) |
3280af22 | 2095 | PL_scopestack_ix -= 1; |
84902520 TB |
2096 | if (flags & 64) |
2097 | SvREFCNT_dec(sv); | |
533c011a | 2098 | PL_op = myop; /* Apparently not needed... */ |
84902520 | 2099 | |
3280af22 NIS |
2100 | PL_Sv = tSv; /* Restore global temporaries. */ |
2101 | PL_Xpv = tXpv; | |
79072805 LW |
2102 | return; |
2103 | } | |
4e35701f NIS |
2104 | |
2105 |