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