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 GS |
33 | #ifdef PERL_OBJECT |
34 | static void UnwindHandler(void *pPerl, void *ptr) | |
35 | { | |
36 | ((CPerlObj*)pPerl)->unwind_handler_stack(ptr); | |
37 | } | |
38 | ||
39 | static void RestoreMagic(void *pPerl, void *ptr) | |
40 | { | |
41 | ((CPerlObj*)pPerl)->restore_magic(ptr); | |
42 | } | |
43 | #define UNWINDHANDLER UnwindHandler | |
44 | #define RESTOREMAGIC RestoreMagic | |
45 | #define VTBL this->*vtbl | |
46 | ||
47 | #else | |
c07a80fd | 48 | struct magic_state { |
49 | SV* mgs_sv; | |
50 | U32 mgs_flags; | |
51 | }; | |
52 | typedef struct magic_state MGS; | |
53 | ||
54 | static void restore_magic _((void *p)); | |
76e3520e GS |
55 | #define UNWINDHANDLER unwind_handler_stack |
56 | #define RESTOREMAGIC restore_magic | |
57 | #define VTBL *vtbl | |
c07a80fd | 58 | |
76e3520e GS |
59 | #endif |
60 | ||
61 | STATIC void | |
8ac85365 | 62 | save_magic(MGS *mgs, SV *sv) |
c07a80fd | 63 | { |
c07a80fd | 64 | assert(SvMAGICAL(sv)); |
65 | ||
c07a80fd | 66 | mgs->mgs_sv = sv; |
67 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
76e3520e | 68 | SAVEDESTRUCTOR(RESTOREMAGIC, mgs); |
c07a80fd | 69 | |
70 | SvMAGICAL_off(sv); | |
71 | SvREADONLY_off(sv); | |
72 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
c07a80fd | 73 | } |
74 | ||
76e3520e | 75 | STATIC void |
8ac85365 | 76 | restore_magic(void *p) |
c07a80fd | 77 | { |
48e43a1c | 78 | MGS* mgs = (MGS*)p; |
c07a80fd | 79 | SV* sv = mgs->mgs_sv; |
80 | ||
81 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
82 | { | |
83 | if (mgs->mgs_flags) | |
84 | SvFLAGS(sv) |= mgs->mgs_flags; | |
85 | else | |
86 | mg_magical(sv); | |
87 | if (SvGMAGICAL(sv)) | |
88 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
89 | } | |
c07a80fd | 90 | } |
91 | ||
8990e307 | 92 | void |
8ac85365 | 93 | mg_magical(SV *sv) |
8990e307 LW |
94 | { |
95 | MAGIC* mg; | |
96 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
97 | MGVTBL* vtbl = mg->mg_virtual; | |
98 | if (vtbl) { | |
76e3520e | 99 | if ((vtbl->svt_get != NULL) && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
100 | SvGMAGICAL_on(sv); |
101 | if (vtbl->svt_set) | |
102 | SvSMAGICAL_on(sv); | |
76e3520e | 103 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || (vtbl->svt_clear != NULL)) |
8990e307 LW |
104 | SvRMAGICAL_on(sv); |
105 | } | |
106 | } | |
107 | } | |
108 | ||
79072805 | 109 | int |
8ac85365 | 110 | mg_get(SV *sv) |
79072805 | 111 | { |
48e43a1c | 112 | MGS mgs; |
79072805 | 113 | MAGIC* mg; |
c6496cc7 | 114 | MAGIC** mgp; |
760ac839 | 115 | int mgp_valid = 0; |
463ee0b2 | 116 | |
c07a80fd | 117 | ENTER; |
48e43a1c | 118 | save_magic(&mgs, sv); |
463ee0b2 | 119 | |
c6496cc7 | 120 | mgp = &SvMAGIC(sv); |
121 | while ((mg = *mgp) != 0) { | |
79072805 | 122 | MGVTBL* vtbl = mg->mg_virtual; |
76e3520e GS |
123 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && (vtbl->svt_get != NULL)) { |
124 | (VTBL->svt_get)(sv, mg); | |
c6496cc7 | 125 | /* Ignore this magic if it's been deleted */ |
48e43a1c CS |
126 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
127 | (mg->mg_flags & MGf_GSKIP)) | |
128 | mgs.mgs_flags = 0; | |
a0d0e21e | 129 | } |
c6496cc7 | 130 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 131 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 132 | mgp = &mg->mg_moremagic; |
760ac839 LW |
133 | mgp_valid = 1; |
134 | } | |
135 | else | |
136 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 137 | } |
463ee0b2 | 138 | |
c07a80fd | 139 | LEAVE; |
79072805 LW |
140 | return 0; |
141 | } | |
142 | ||
143 | int | |
8ac85365 | 144 | mg_set(SV *sv) |
79072805 | 145 | { |
48e43a1c | 146 | MGS mgs; |
79072805 | 147 | MAGIC* mg; |
463ee0b2 LW |
148 | MAGIC* nextmg; |
149 | ||
c07a80fd | 150 | ENTER; |
48e43a1c | 151 | save_magic(&mgs, sv); |
463ee0b2 LW |
152 | |
153 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 154 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 155 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
156 | if (mg->mg_flags & MGf_GSKIP) { |
157 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
48e43a1c | 158 | mgs.mgs_flags = 0; |
a0d0e21e | 159 | } |
76e3520e GS |
160 | if (vtbl && (vtbl->svt_set != NULL)) |
161 | (VTBL->svt_set)(sv, mg); | |
79072805 | 162 | } |
463ee0b2 | 163 | |
c07a80fd | 164 | LEAVE; |
79072805 LW |
165 | return 0; |
166 | } | |
167 | ||
168 | U32 | |
8ac85365 | 169 | mg_len(SV *sv) |
79072805 LW |
170 | { |
171 | MAGIC* mg; | |
748a9306 | 172 | char *junk; |
463ee0b2 | 173 | STRLEN len; |
463ee0b2 | 174 | |
79072805 LW |
175 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
176 | MGVTBL* vtbl = mg->mg_virtual; | |
76e3520e | 177 | if (vtbl && (vtbl->svt_len != NULL)) { |
48e43a1c CS |
178 | MGS mgs; |
179 | ||
c07a80fd | 180 | ENTER; |
48e43a1c | 181 | save_magic(&mgs, sv); |
a0d0e21e | 182 | /* omit MGf_GSKIP -- not changed here */ |
76e3520e | 183 | len = (VTBL->svt_len)(sv, mg); |
c07a80fd | 184 | LEAVE; |
85e6fe83 LW |
185 | return len; |
186 | } | |
187 | } | |
188 | ||
748a9306 | 189 | junk = SvPV(sv, len); |
463ee0b2 | 190 | return len; |
79072805 LW |
191 | } |
192 | ||
93965878 NIS |
193 | I32 |
194 | mg_size(SV *sv) | |
195 | { | |
196 | MAGIC* mg; | |
197 | I32 len; | |
198 | ||
199 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
200 | MGVTBL* vtbl = mg->mg_virtual; | |
201 | if (vtbl && vtbl->svt_len) { | |
202 | MGS mgs; | |
203 | ENTER; | |
204 | /* omit MGf_GSKIP -- not changed here */ | |
205 | len = (*vtbl->svt_len)(sv, mg); | |
206 | LEAVE; | |
207 | return len; | |
208 | } | |
209 | } | |
210 | ||
211 | switch(SvTYPE(sv)) { | |
212 | case SVt_PVAV: | |
213 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
214 | return len; | |
215 | case SVt_PVHV: | |
216 | /* FIXME */ | |
217 | default: | |
218 | croak("Size magic not implemented"); | |
219 | break; | |
220 | } | |
221 | return 0; | |
222 | } | |
223 | ||
79072805 | 224 | int |
8ac85365 | 225 | mg_clear(SV *sv) |
79072805 | 226 | { |
48e43a1c | 227 | MGS mgs; |
79072805 | 228 | MAGIC* mg; |
463ee0b2 | 229 | |
c07a80fd | 230 | ENTER; |
48e43a1c | 231 | save_magic(&mgs, sv); |
463ee0b2 | 232 | |
79072805 LW |
233 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
234 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
235 | /* omit GSKIP -- never set here */ |
236 | ||
76e3520e GS |
237 | if (vtbl && (vtbl->svt_clear != NULL)) |
238 | (VTBL->svt_clear)(sv, mg); | |
79072805 | 239 | } |
463ee0b2 | 240 | |
c07a80fd | 241 | LEAVE; |
79072805 LW |
242 | return 0; |
243 | } | |
244 | ||
93a17b20 | 245 | MAGIC* |
8ac85365 | 246 | mg_find(SV *sv, int type) |
93a17b20 LW |
247 | { |
248 | MAGIC* mg; | |
93a17b20 LW |
249 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
250 | if (mg->mg_type == type) | |
251 | return mg; | |
252 | } | |
253 | return 0; | |
254 | } | |
255 | ||
79072805 | 256 | int |
8ac85365 | 257 | mg_copy(SV *sv, SV *nsv, char *key, I32 klen) |
79072805 | 258 | { |
463ee0b2 | 259 | int count = 0; |
79072805 | 260 | MAGIC* mg; |
463ee0b2 LW |
261 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
262 | if (isUPPER(mg->mg_type)) { | |
a0d0e21e | 263 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 264 | count++; |
79072805 | 265 | } |
79072805 | 266 | } |
463ee0b2 | 267 | return count; |
79072805 LW |
268 | } |
269 | ||
270 | int | |
8ac85365 | 271 | mg_free(SV *sv) |
79072805 LW |
272 | { |
273 | MAGIC* mg; | |
274 | MAGIC* moremagic; | |
275 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
276 | MGVTBL* vtbl = mg->mg_virtual; | |
277 | moremagic = mg->mg_moremagic; | |
76e3520e GS |
278 | if (vtbl && (vtbl->svt_free != NULL)) |
279 | (VTBL->svt_free)(sv, mg); | |
93a17b20 | 280 | if (mg->mg_ptr && mg->mg_type != 'g') |
76e3520e | 281 | if (mg->mg_length >= 0) |
88e89b8a | 282 | Safefree(mg->mg_ptr); |
76e3520e | 283 | else if (mg->mg_length == HEf_SVKEY) |
88e89b8a | 284 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 | 285 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 286 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
287 | Safefree(mg); |
288 | } | |
289 | SvMAGIC(sv) = 0; | |
290 | return 0; | |
291 | } | |
292 | ||
293 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
294 | #include <signal.h> | |
295 | #endif | |
296 | ||
93a17b20 | 297 | U32 |
8ac85365 | 298 | magic_len(SV *sv, MAGIC *mg) |
93a17b20 | 299 | { |
a863c7d1 | 300 | dTHR; |
93a17b20 LW |
301 | register I32 paren; |
302 | register char *s; | |
303 | register I32 i; | |
bbce6d69 | 304 | register REGEXP *rx; |
748a9306 | 305 | char *t; |
93a17b20 LW |
306 | |
307 | switch (*mg->mg_ptr) { | |
308 | case '1': case '2': case '3': case '4': | |
309 | case '5': case '6': case '7': case '8': case '9': case '&': | |
bbce6d69 | 310 | if (curpm && (rx = curpm->op_pmregexp)) { |
93a17b20 LW |
311 | paren = atoi(mg->mg_ptr); |
312 | getparen: | |
bbce6d69 | 313 | if (paren <= rx->nparens && |
314 | (s = rx->startp[paren]) && | |
315 | (t = rx->endp[paren])) | |
316 | { | |
748a9306 | 317 | i = t - s; |
71be2cbc | 318 | if (i >= 0) |
93a17b20 | 319 | return i; |
93a17b20 | 320 | } |
93a17b20 | 321 | } |
748a9306 | 322 | return 0; |
93a17b20 | 323 | case '+': |
bbce6d69 | 324 | if (curpm && (rx = curpm->op_pmregexp)) { |
325 | paren = rx->lastparen; | |
13f57bf8 CS |
326 | if (paren) |
327 | goto getparen; | |
93a17b20 | 328 | } |
748a9306 | 329 | return 0; |
93a17b20 | 330 | case '`': |
bbce6d69 | 331 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 | 332 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 | 333 | i = rx->startp[0] - s; |
71be2cbc | 334 | if (i >= 0) |
93a17b20 | 335 | return i; |
93a17b20 | 336 | } |
93a17b20 | 337 | } |
748a9306 | 338 | return 0; |
93a17b20 | 339 | case '\'': |
bbce6d69 | 340 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 CS |
341 | if (rx->subend && (s = rx->endp[0])) { |
342 | i = rx->subend - s; | |
343 | if (i >= 0) | |
5cd24f17 | 344 | return i; |
93a17b20 | 345 | } |
93a17b20 | 346 | } |
748a9306 | 347 | return 0; |
93a17b20 LW |
348 | case ',': |
349 | return (STRLEN)ofslen; | |
350 | case '\\': | |
351 | return (STRLEN)orslen; | |
352 | } | |
353 | magic_get(sv,mg); | |
354 | if (!SvPOK(sv) && SvNIOK(sv)) | |
463ee0b2 | 355 | sv_2pv(sv, &na); |
93a17b20 LW |
356 | if (SvPOK(sv)) |
357 | return SvCUR(sv); | |
358 | return 0; | |
359 | } | |
360 | ||
79072805 | 361 | int |
8ac85365 | 362 | magic_get(SV *sv, MAGIC *mg) |
79072805 | 363 | { |
a863c7d1 | 364 | dTHR; |
79072805 LW |
365 | register I32 paren; |
366 | register char *s; | |
367 | register I32 i; | |
bbce6d69 | 368 | register REGEXP *rx; |
748a9306 | 369 | char *t; |
79072805 LW |
370 | |
371 | switch (*mg->mg_ptr) { | |
748a9306 LW |
372 | case '\001': /* ^A */ |
373 | sv_setsv(sv, bodytarget); | |
374 | break; | |
79072805 | 375 | case '\004': /* ^D */ |
188ea221 | 376 | sv_setiv(sv, (IV)(debug & 32767)); |
79072805 | 377 | break; |
28f23441 | 378 | case '\005': /* ^E */ |
379 | #ifdef VMS | |
380 | { | |
381 | # include <descrip.h> | |
382 | # include <starlet.h> | |
383 | char msg[255]; | |
384 | $DESCRIPTOR(msgdsc,msg); | |
946ec16e | 385 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 | 386 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
387 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
388 | else | |
389 | sv_setpv(sv,""); | |
390 | } | |
391 | #else | |
88e89b8a | 392 | #ifdef OS2 |
fb73857a | 393 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
394 | sv_setnv(sv, (double)errno); | |
395 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
396 | } else { | |
397 | if (errno != errno_isOS2) | |
398 | Perl_rc = _syserrno(); | |
399 | sv_setnv(sv, (double)Perl_rc); | |
400 | sv_setpv(sv, os2error(Perl_rc)); | |
401 | } | |
88e89b8a | 402 | #else |
22fae026 TM |
403 | #ifdef WIN32 |
404 | { | |
405 | DWORD dwErr = GetLastError(); | |
406 | sv_setnv(sv, (double)dwErr); | |
407 | if (dwErr) | |
76e3520e GS |
408 | { |
409 | #ifdef PERL_OBJECT | |
410 | char *sMsg; | |
411 | DWORD dwLen; | |
412 | PerlProc_GetSysMsg(sMsg, dwLen, dwErr); | |
413 | sv_setpvn(sv, sMsg, dwLen); | |
414 | PerlProc_FreeBuf(sMsg); | |
415 | #else | |
22fae026 | 416 | win32_str_os_error(sv, dwErr); |
76e3520e GS |
417 | #endif |
418 | } | |
22fae026 TM |
419 | else |
420 | sv_setpv(sv, ""); | |
421 | SetLastError(dwErr); | |
422 | } | |
423 | #else | |
946ec16e | 424 | sv_setnv(sv, (double)errno); |
28f23441 | 425 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
426 | #endif | |
88e89b8a | 427 | #endif |
22fae026 | 428 | #endif |
946ec16e | 429 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 430 | break; |
79072805 | 431 | case '\006': /* ^F */ |
188ea221 | 432 | sv_setiv(sv, (IV)maxsysfd); |
79072805 | 433 | break; |
a0d0e21e | 434 | case '\010': /* ^H */ |
188ea221 | 435 | sv_setiv(sv, (IV)hints); |
a0d0e21e | 436 | break; |
79072805 LW |
437 | case '\t': /* ^I */ |
438 | if (inplace) | |
439 | sv_setpv(sv, inplace); | |
440 | else | |
188ea221 | 441 | sv_setsv(sv, &sv_undef); |
79072805 | 442 | break; |
28f23441 | 443 | case '\017': /* ^O */ |
188ea221 | 444 | sv_setpv(sv, osname); |
28f23441 | 445 | break; |
79072805 | 446 | case '\020': /* ^P */ |
188ea221 | 447 | sv_setiv(sv, (IV)perldb); |
79072805 | 448 | break; |
fb73857a | 449 | case '\023': /* ^S */ |
d58bf5aa MB |
450 | { |
451 | dTHR; | |
452 | if (lex_state != LEX_NOTPARSING) | |
453 | SvOK_off(sv); | |
454 | else if (in_eval) | |
455 | sv_setiv(sv, 1); | |
456 | else | |
457 | sv_setiv(sv, 0); | |
458 | } | |
fb73857a | 459 | break; |
79072805 | 460 | case '\024': /* ^T */ |
88e89b8a | 461 | #ifdef BIG_TIME |
188ea221 | 462 | sv_setnv(sv, basetime); |
88e89b8a | 463 | #else |
188ea221 | 464 | sv_setiv(sv, (IV)basetime); |
88e89b8a | 465 | #endif |
79072805 LW |
466 | break; |
467 | case '\027': /* ^W */ | |
188ea221 | 468 | sv_setiv(sv, (IV)dowarn); |
79072805 LW |
469 | break; |
470 | case '1': case '2': case '3': case '4': | |
471 | case '5': case '6': case '7': case '8': case '9': case '&': | |
bbce6d69 | 472 | if (curpm && (rx = curpm->op_pmregexp)) { |
a863c7d1 MB |
473 | /* |
474 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
475 | * XXX Does the new way break anything? | |
476 | */ | |
477 | paren = atoi(mg->mg_ptr); | |
79072805 | 478 | getparen: |
bbce6d69 | 479 | if (paren <= rx->nparens && |
480 | (s = rx->startp[paren]) && | |
481 | (t = rx->endp[paren])) | |
482 | { | |
748a9306 | 483 | i = t - s; |
13f57bf8 | 484 | getrx: |
748a9306 | 485 | if (i >= 0) { |
13f57bf8 CS |
486 | bool was_tainted; |
487 | if (tainting) { | |
488 | was_tainted = tainted; | |
489 | tainted = FALSE; | |
490 | } | |
79072805 | 491 | sv_setpvn(sv,s,i); |
13f57bf8 | 492 | if (tainting) |
c277df42 | 493 | tainted = was_tainted || RX_MATCH_TAINTED(rx); |
748a9306 LW |
494 | break; |
495 | } | |
79072805 | 496 | } |
79072805 | 497 | } |
748a9306 | 498 | sv_setsv(sv,&sv_undef); |
79072805 LW |
499 | break; |
500 | case '+': | |
bbce6d69 | 501 | if (curpm && (rx = curpm->op_pmregexp)) { |
502 | paren = rx->lastparen; | |
a0d0e21e LW |
503 | if (paren) |
504 | goto getparen; | |
79072805 | 505 | } |
748a9306 | 506 | sv_setsv(sv,&sv_undef); |
79072805 LW |
507 | break; |
508 | case '`': | |
bbce6d69 | 509 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 | 510 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 | 511 | i = rx->startp[0] - s; |
13f57bf8 | 512 | goto getrx; |
79072805 | 513 | } |
79072805 | 514 | } |
748a9306 | 515 | sv_setsv(sv,&sv_undef); |
79072805 LW |
516 | break; |
517 | case '\'': | |
bbce6d69 | 518 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 CS |
519 | if (rx->subend && (s = rx->endp[0])) { |
520 | i = rx->subend - s; | |
521 | goto getrx; | |
79072805 | 522 | } |
79072805 | 523 | } |
748a9306 | 524 | sv_setsv(sv,&sv_undef); |
79072805 LW |
525 | break; |
526 | case '.': | |
527 | #ifndef lint | |
a0d0e21e | 528 | if (GvIO(last_in_gv)) { |
188ea221 | 529 | sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv))); |
79072805 LW |
530 | } |
531 | #endif | |
532 | break; | |
533 | case '?': | |
809a5acc MB |
534 | { |
535 | dTHR; | |
536 | sv_setiv(sv, (IV)STATUS_CURRENT); | |
ff0cee69 | 537 | #ifdef COMPLEX_STATUS |
809a5acc MB |
538 | LvTARGOFF(sv) = statusvalue; |
539 | LvTARGLEN(sv) = statusvalue_vms; | |
ff0cee69 | 540 | #endif |
809a5acc | 541 | } |
79072805 LW |
542 | break; |
543 | case '^': | |
a0d0e21e | 544 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 LW |
545 | if (s) |
546 | sv_setpv(sv,s); | |
547 | else { | |
548 | sv_setpv(sv,GvENAME(defoutgv)); | |
549 | sv_catpv(sv,"_TOP"); | |
550 | } | |
551 | break; | |
552 | case '~': | |
a0d0e21e | 553 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 LW |
554 | if (!s) |
555 | s = GvENAME(defoutgv); | |
556 | sv_setpv(sv,s); | |
557 | break; | |
558 | #ifndef lint | |
559 | case '=': | |
188ea221 | 560 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 LW |
561 | break; |
562 | case '-': | |
188ea221 | 563 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 LW |
564 | break; |
565 | case '%': | |
188ea221 | 566 | sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv))); |
79072805 LW |
567 | break; |
568 | #endif | |
569 | case ':': | |
570 | break; | |
571 | case '/': | |
572 | break; | |
573 | case '[': | |
0f15f207 | 574 | WITH_THR(sv_setiv(sv, (IV)curcop->cop_arybase)); |
79072805 LW |
575 | break; |
576 | case '|': | |
188ea221 | 577 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
578 | break; |
579 | case ',': | |
580 | sv_setpvn(sv,ofs,ofslen); | |
581 | break; | |
582 | case '\\': | |
583 | sv_setpvn(sv,ors,orslen); | |
584 | break; | |
585 | case '#': | |
586 | sv_setpv(sv,ofmt); | |
587 | break; | |
588 | case '!': | |
a5f75d66 | 589 | #ifdef VMS |
946ec16e | 590 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 591 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 592 | #else |
88e89b8a | 593 | { |
594 | int saveerrno = errno; | |
946ec16e | 595 | sv_setnv(sv, (double)errno); |
88e89b8a | 596 | #ifdef OS2 |
597 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
598 | else | |
a5f75d66 | 599 | #endif |
2304df62 | 600 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 601 | errno = saveerrno; |
602 | } | |
603 | #endif | |
946ec16e | 604 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
605 | break; |
606 | case '<': | |
188ea221 | 607 | sv_setiv(sv, (IV)uid); |
79072805 LW |
608 | break; |
609 | case '>': | |
188ea221 | 610 | sv_setiv(sv, (IV)euid); |
79072805 LW |
611 | break; |
612 | case '(': | |
188ea221 | 613 | sv_setiv(sv, (IV)gid); |
fc36a67e | 614 | sv_setpvf(sv, "%Vd", (IV)gid); |
79072805 LW |
615 | goto add_groups; |
616 | case ')': | |
188ea221 | 617 | sv_setiv(sv, (IV)egid); |
fc36a67e | 618 | sv_setpvf(sv, "%Vd", (IV)egid); |
79072805 | 619 | add_groups: |
79072805 | 620 | #ifdef HAS_GETGROUPS |
79072805 | 621 | { |
a0d0e21e | 622 | Groups_t gary[NGROUPS]; |
79072805 | 623 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 624 | while (--i >= 0) |
fc36a67e | 625 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 LW |
626 | } |
627 | #endif | |
29355cf7 | 628 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
629 | break; |
630 | case '*': | |
631 | break; | |
632 | case '0': | |
633 | break; | |
a863c7d1 MB |
634 | #ifdef USE_THREADS |
635 | case '@': | |
38a03e6e | 636 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
637 | break; |
638 | #endif /* USE_THREADS */ | |
79072805 | 639 | } |
a0d0e21e | 640 | return 0; |
79072805 LW |
641 | } |
642 | ||
643 | int | |
8ac85365 | 644 | magic_getuvar(SV *sv, MAGIC *mg) |
79072805 LW |
645 | { |
646 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
647 | ||
648 | if (uf && uf->uf_val) | |
649 | (*uf->uf_val)(uf->uf_index, sv); | |
650 | return 0; | |
651 | } | |
652 | ||
653 | int | |
8ac85365 | 654 | magic_setenv(SV *sv, MAGIC *mg) |
79072805 LW |
655 | { |
656 | register char *s; | |
88e89b8a | 657 | char *ptr; |
5aabfad6 | 658 | STRLEN len, klen; |
a0d0e21e | 659 | I32 i; |
1e422769 | 660 | |
a0d0e21e | 661 | s = SvPV(sv,len); |
5aabfad6 | 662 | ptr = MgPV(mg,klen); |
88e89b8a | 663 | my_setenv(ptr, s); |
1e422769 | 664 | |
a0d0e21e LW |
665 | #ifdef DYNAMIC_ENV_FETCH |
666 | /* We just undefd an environment var. Is a replacement */ | |
667 | /* waiting in the wings? */ | |
668 | if (!len) { | |
5aabfad6 | 669 | SV **valp; |
670 | if ((valp = hv_fetch(GvHVn(envgv), ptr, klen, FALSE))) | |
671 | s = SvPV(*valp, len); | |
a0d0e21e LW |
672 | } |
673 | #endif | |
1e422769 | 674 | |
39e571d4 | 675 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
676 | /* And you'll never guess what the dog had */ |
677 | /* in its mouth... */ | |
463ee0b2 | 678 | if (tainting) { |
1e422769 | 679 | MgTAINTEDDIR_off(mg); |
680 | #ifdef VMS | |
5aabfad6 | 681 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 682 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
683 | struct stat sbuf; | |
684 | int i = 0, j = 0; | |
685 | ||
686 | do { /* DCL$PATH may be a search list */ | |
687 | while (1) { /* as may dev portion of any element */ | |
688 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
689 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
690 | cando_by_name(S_IWUSR,0,elt) ) { | |
691 | MgTAINTEDDIR_on(mg); | |
692 | return 0; | |
693 | } | |
694 | } | |
695 | if ((cp = strchr(elt, ':')) != Nullch) | |
696 | *cp = '\0'; | |
697 | if (my_trnlnm(elt, eltbuf, j++)) | |
698 | elt = eltbuf; | |
699 | else | |
700 | break; | |
701 | } | |
702 | j = 0; | |
703 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
704 | } | |
705 | #endif /* VMS */ | |
5aabfad6 | 706 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 707 | char *strend = s + len; |
463ee0b2 LW |
708 | |
709 | while (s < strend) { | |
96827780 | 710 | char tmpbuf[256]; |
1e422769 | 711 | struct stat st; |
96827780 | 712 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 713 | s, strend, ':', &i); |
463ee0b2 | 714 | s++; |
96827780 MB |
715 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
716 | || *tmpbuf != '/' | |
717 | || (Stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { | |
8990e307 | 718 | MgTAINTEDDIR_on(mg); |
1e422769 | 719 | return 0; |
720 | } | |
463ee0b2 | 721 | } |
79072805 LW |
722 | } |
723 | } | |
39e571d4 | 724 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 725 | |
79072805 LW |
726 | return 0; |
727 | } | |
728 | ||
729 | int | |
8ac85365 | 730 | magic_clearenv(SV *sv, MAGIC *mg) |
85e6fe83 | 731 | { |
5aabfad6 | 732 | my_setenv(MgPV(mg,na),Nullch); |
85e6fe83 LW |
733 | return 0; |
734 | } | |
735 | ||
88e89b8a | 736 | int |
8ac85365 | 737 | magic_set_all_env(SV *sv, MAGIC *mg) |
fb73857a | 738 | { |
739 | #if defined(VMS) | |
740 | die("Can't make list assignment to %%ENV on this system"); | |
741 | #else | |
d58bf5aa | 742 | dTHR; |
fb73857a | 743 | if (localizing) { |
744 | HE* entry; | |
745 | magic_clear_all_env(sv,mg); | |
746 | hv_iterinit((HV*)sv); | |
747 | while (entry = hv_iternext((HV*)sv)) { | |
748 | I32 keylen; | |
749 | my_setenv(hv_iterkey(entry, &keylen), | |
750 | SvPV(hv_iterval((HV*)sv, entry), na)); | |
751 | } | |
752 | } | |
753 | #endif | |
754 | return 0; | |
755 | } | |
756 | ||
757 | int | |
8ac85365 | 758 | magic_clear_all_env(SV *sv, MAGIC *mg) |
66b1d557 | 759 | { |
3e3baf6d TB |
760 | #if defined(VMS) |
761 | die("Can't make list assignment to %%ENV on this system"); | |
762 | #else | |
763 | #ifdef WIN32 | |
764 | char *envv = GetEnvironmentStrings(); | |
765 | char *cur = envv; | |
766 | STRLEN len; | |
767 | while (*cur) { | |
768 | char *end = strchr(cur,'='); | |
769 | if (end && end != cur) { | |
770 | *end = '\0'; | |
771 | my_setenv(cur,Nullch); | |
772 | *end = '='; | |
773 | cur += strlen(end+1)+1; | |
774 | } | |
775 | else if ((len = strlen(cur))) | |
776 | cur += len+1; | |
777 | } | |
778 | FreeEnvironmentStrings(envv); | |
66b1d557 HM |
779 | #else |
780 | I32 i; | |
781 | ||
782 | if (environ == origenviron) | |
783 | New(901, environ, 1, char*); | |
784 | else | |
785 | for (i = 0; environ[i]; i++) | |
786 | Safefree(environ[i]); | |
787 | environ[0] = Nullch; | |
788 | ||
66b1d557 | 789 | #endif |
3e3baf6d TB |
790 | #endif |
791 | return 0; | |
66b1d557 HM |
792 | } |
793 | ||
794 | int | |
8ac85365 | 795 | magic_getsig(SV *sv, MAGIC *mg) |
88e89b8a | 796 | { |
797 | I32 i; | |
798 | /* Are we fetching a signal entry? */ | |
5aabfad6 | 799 | i = whichsig(MgPV(mg,na)); |
88e89b8a | 800 | if (i) { |
801 | if(psig_ptr[i]) | |
802 | sv_setsv(sv,psig_ptr[i]); | |
803 | else { | |
ff68c719 | 804 | Sighandler_t sigstate = rsignal_state(i); |
805 | ||
88e89b8a | 806 | /* cache state so we don't fetch it again */ |
ff68c719 | 807 | if(sigstate == SIG_IGN) |
88e89b8a | 808 | sv_setpv(sv,"IGNORE"); |
809 | else | |
810 | sv_setsv(sv,&sv_undef); | |
811 | psig_ptr[i] = SvREFCNT_inc(sv); | |
812 | SvTEMP_off(sv); | |
813 | } | |
814 | } | |
815 | return 0; | |
816 | } | |
817 | int | |
8ac85365 | 818 | magic_clearsig(SV *sv, MAGIC *mg) |
88e89b8a | 819 | { |
820 | I32 i; | |
821 | /* Are we clearing a signal entry? */ | |
5aabfad6 | 822 | i = whichsig(MgPV(mg,na)); |
88e89b8a | 823 | if (i) { |
824 | if(psig_ptr[i]) { | |
825 | SvREFCNT_dec(psig_ptr[i]); | |
826 | psig_ptr[i]=0; | |
827 | } | |
828 | if(psig_name[i]) { | |
829 | SvREFCNT_dec(psig_name[i]); | |
830 | psig_name[i]=0; | |
831 | } | |
832 | } | |
833 | return 0; | |
834 | } | |
3d37d572 | 835 | |
85e6fe83 | 836 | int |
8ac85365 | 837 | magic_setsig(SV *sv, MAGIC *mg) |
79072805 | 838 | { |
11343788 | 839 | dTHR; |
79072805 LW |
840 | register char *s; |
841 | I32 i; | |
748a9306 | 842 | SV** svp; |
a0d0e21e | 843 | |
5aabfad6 | 844 | s = MgPV(mg,na); |
748a9306 LW |
845 | if (*s == '_') { |
846 | if (strEQ(s,"__DIE__")) | |
847 | svp = &diehook; | |
848 | else if (strEQ(s,"__WARN__")) | |
849 | svp = &warnhook; | |
850 | else if (strEQ(s,"__PARSE__")) | |
851 | svp = &parsehook; | |
852 | else | |
853 | croak("No such hook: %s", s); | |
854 | i = 0; | |
4633a7c4 LW |
855 | if (*svp) { |
856 | SvREFCNT_dec(*svp); | |
857 | *svp = 0; | |
858 | } | |
748a9306 LW |
859 | } |
860 | else { | |
861 | i = whichsig(s); /* ...no, a brick */ | |
862 | if (!i) { | |
863 | if (dowarn || strEQ(s,"ALARM")) | |
864 | warn("No such signal: SIG%s", s); | |
865 | return 0; | |
866 | } | |
ff0cee69 | 867 | SvREFCNT_dec(psig_name[i]); |
868 | SvREFCNT_dec(psig_ptr[i]); | |
88e89b8a | 869 | psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 870 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
ff0cee69 | 871 | psig_name[i] = newSVpv(s, strlen(s)); |
88e89b8a | 872 | SvREADONLY_on(psig_name[i]); |
748a9306 | 873 | } |
a0d0e21e | 874 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 875 | if (i) |
c23142e2 | 876 | (void)rsignal(i, sighandlerp); |
748a9306 LW |
877 | else |
878 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
879 | return 0; |
880 | } | |
881 | s = SvPV_force(sv,na); | |
748a9306 LW |
882 | if (strEQ(s,"IGNORE")) { |
883 | if (i) | |
ff68c719 | 884 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
885 | else |
886 | *svp = 0; | |
887 | } | |
888 | else if (strEQ(s,"DEFAULT") || !*s) { | |
889 | if (i) | |
ff68c719 | 890 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
891 | else |
892 | *svp = 0; | |
893 | } | |
79072805 | 894 | else { |
5aabfad6 | 895 | /* |
896 | * We should warn if HINT_STRICT_REFS, but without | |
897 | * access to a known hint bit in a known OP, we can't | |
898 | * tell whether HINT_STRICT_REFS is in force or not. | |
899 | */ | |
46fc3d4c | 900 | if (!strchr(s,':') && !strchr(s,'\'')) |
901 | sv_setpv(sv, form("main::%s", s)); | |
748a9306 | 902 | if (i) |
c23142e2 | 903 | (void)rsignal(i, sighandlerp); |
748a9306 LW |
904 | else |
905 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
906 | } |
907 | return 0; | |
908 | } | |
909 | ||
910 | int | |
8ac85365 | 911 | magic_setisa(SV *sv, MAGIC *mg) |
79072805 | 912 | { |
a0231f0e MB |
913 | HV *stash; |
914 | SV **svp; | |
915 | I32 fill; | |
916 | HV *basefields = Nullhv; | |
917 | GV **gvp; | |
918 | GV *gv; | |
919 | HE *he; | |
920 | static char *FIELDS = "FIELDS"; | |
921 | ||
463ee0b2 | 922 | sub_generation++; |
a0231f0e MB |
923 | |
924 | if (mg->mg_type == 'i') | |
925 | return 0; /* Ignore lower-case version of the magic */ | |
926 | ||
927 | stash = GvSTASH(mg->mg_obj); | |
928 | svp = AvARRAY((AV*)sv); | |
93965878 NIS |
929 | |
930 | /* NOTE: No support for tied ISA */ | |
931 | for (fill = AvFILLp((AV*)sv); fill >= 0; fill--, svp++) { | |
a0231f0e MB |
932 | HV *basestash = gv_stashsv(*svp, FALSE); |
933 | ||
934 | if (!basestash) { | |
935 | if (dowarn) | |
936 | warn("No such package \"%_\" in @ISA assignment", *svp); | |
937 | continue; | |
938 | } | |
939 | gvp = (GV**)hv_fetch(basestash, FIELDS, 6, FALSE); | |
940 | if (gvp && *gvp && GvHV(*gvp)) { | |
941 | if (basefields) | |
942 | croak("Can't multiply inherit %%FIELDS"); | |
943 | basefields = GvHV(*gvp); | |
944 | } | |
945 | } | |
946 | ||
947 | if (!basefields) | |
948 | return 0; | |
949 | ||
950 | gv = (GV*)*hv_fetch(stash, FIELDS, 6, TRUE); | |
951 | if (!isGV(gv)) | |
952 | gv_init(gv, stash, FIELDS, 6, TRUE); | |
953 | if (!GvHV(gv)) | |
954 | GvHV(gv) = newHV(); | |
955 | if (HvKEYS(GvHV(gv))) | |
956 | croak("Inherited %%FIELDS can't override existing %%FIELDS"); | |
957 | ||
958 | hv_iterinit(GvHV(gv)); | |
959 | while ((he = hv_iternext(basefields))) | |
960 | hv_store(GvHV(gv), HeKEY(he), HeKLEN(he), HeVAL(he), HeHASH(he)); | |
961 | ||
463ee0b2 LW |
962 | return 0; |
963 | } | |
964 | ||
a0d0e21e LW |
965 | #ifdef OVERLOAD |
966 | ||
463ee0b2 | 967 | int |
8ac85365 | 968 | magic_setamagic(SV *sv, MAGIC *mg) |
463ee0b2 | 969 | { |
a0d0e21e LW |
970 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
971 | amagic_generation++; | |
463ee0b2 | 972 | |
a0d0e21e LW |
973 | return 0; |
974 | } | |
975 | #endif /* OVERLOAD */ | |
463ee0b2 | 976 | |
946ec16e | 977 | int |
8ac85365 | 978 | magic_setnkeys(SV *sv, MAGIC *mg) |
946ec16e | 979 | { |
980 | if (LvTARG(sv)) { | |
981 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
982 | LvTARG(sv) = Nullsv; /* Don't allow a ref to reassign this. */ | |
983 | } | |
984 | return 0; | |
93965878 | 985 | } |
946ec16e | 986 | |
a0d0e21e | 987 | static int |
93965878 | 988 | magic_methcall(MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
989 | { |
990 | dSP; | |
463ee0b2 | 991 | |
a0d0e21e | 992 | PUSHMARK(sp); |
93965878 | 993 | EXTEND(sp, n); |
a0d0e21e | 994 | PUSHs(mg->mg_obj); |
93965878 NIS |
995 | if (n > 1) { |
996 | if (mg->mg_ptr) { | |
6b6eec5b GS |
997 | if (mg->mg_length >= 0) |
998 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_length))); | |
999 | else if (mg->mg_length == HEf_SVKEY) | |
93965878 NIS |
1000 | PUSHs((SV*)mg->mg_ptr); |
1001 | } | |
1002 | else if (mg->mg_type == 'p') { | |
6b6eec5b | 1003 | PUSHs(sv_2mortal(newSViv(mg->mg_length))); |
93965878 NIS |
1004 | } |
1005 | } | |
1006 | if (n > 2) { | |
1007 | PUSHs(val); | |
88e89b8a | 1008 | } |
463ee0b2 LW |
1009 | PUTBACK; |
1010 | ||
93965878 | 1011 | return perl_call_method(meth, flags); |
946ec16e | 1012 | } |
1013 | ||
76e3520e | 1014 | STATIC int |
8ac85365 | 1015 | magic_methpack(SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1016 | { |
1017 | dSP; | |
463ee0b2 | 1018 | |
a0d0e21e LW |
1019 | ENTER; |
1020 | SAVETMPS; | |
463ee0b2 | 1021 | |
93965878 | 1022 | if (magic_methcall(mg, meth, G_SCALAR, 2, NULL)) { |
a0d0e21e | 1023 | sv_setsv(sv, *stack_sp--); |
93965878 | 1024 | } |
463ee0b2 | 1025 | |
a0d0e21e LW |
1026 | FREETMPS; |
1027 | LEAVE; | |
1028 | return 0; | |
1029 | } | |
463ee0b2 | 1030 | |
a0d0e21e | 1031 | int |
8ac85365 | 1032 | magic_getpack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1033 | { |
1034 | magic_methpack(sv,mg,"FETCH"); | |
1035 | if (mg->mg_ptr) | |
1036 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1037 | return 0; |
1038 | } | |
1039 | ||
1040 | int | |
8ac85365 | 1041 | magic_setpack(SV *sv, MAGIC *mg) |
a60c0954 NIS |
1042 | { |
1043 | ENTER; | |
93965878 | 1044 | magic_methcall(mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
a60c0954 | 1045 | LEAVE; |
463ee0b2 LW |
1046 | return 0; |
1047 | } | |
1048 | ||
1049 | int | |
8ac85365 | 1050 | magic_clearpack(SV *sv, MAGIC *mg) |
463ee0b2 | 1051 | { |
a0d0e21e LW |
1052 | return magic_methpack(sv,mg,"DELETE"); |
1053 | } | |
463ee0b2 | 1054 | |
93965878 NIS |
1055 | |
1056 | U32 | |
1057 | magic_sizepack(SV *sv, MAGIC *mg) | |
1058 | { | |
1059 | dTHR; | |
1060 | U32 retval = 0; | |
1061 | ||
1062 | ENTER; | |
1063 | SAVETMPS; | |
1064 | if (magic_methcall(mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { | |
1065 | sv = *stack_sp--; | |
a60c0954 | 1066 | retval = (U32) SvIV(sv)-1; |
93965878 NIS |
1067 | } |
1068 | FREETMPS; | |
1069 | LEAVE; | |
1070 | return retval; | |
1071 | } | |
1072 | ||
8ac85365 | 1073 | int magic_wipepack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1074 | { |
1075 | dSP; | |
463ee0b2 | 1076 | |
a0d0e21e LW |
1077 | PUSHMARK(sp); |
1078 | XPUSHs(mg->mg_obj); | |
463ee0b2 | 1079 | PUTBACK; |
a60c0954 | 1080 | ENTER; |
a0d0e21e | 1081 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
a60c0954 | 1082 | LEAVE; |
463ee0b2 LW |
1083 | return 0; |
1084 | } | |
1085 | ||
1086 | int | |
8ac85365 | 1087 | magic_nextpack(SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1088 | { |
463ee0b2 | 1089 | dSP; |
a0d0e21e | 1090 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1091 | |
1092 | ENTER; | |
a0d0e21e LW |
1093 | SAVETMPS; |
1094 | PUSHMARK(sp); | |
1095 | EXTEND(sp, 2); | |
1096 | PUSHs(mg->mg_obj); | |
463ee0b2 LW |
1097 | if (SvOK(key)) |
1098 | PUSHs(key); | |
1099 | PUTBACK; | |
1100 | ||
a0d0e21e LW |
1101 | if (perl_call_method(meth, G_SCALAR)) |
1102 | sv_setsv(key, *stack_sp--); | |
463ee0b2 | 1103 | |
a0d0e21e LW |
1104 | FREETMPS; |
1105 | LEAVE; | |
79072805 LW |
1106 | return 0; |
1107 | } | |
1108 | ||
1109 | int | |
8ac85365 | 1110 | magic_existspack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1111 | { |
1112 | return magic_methpack(sv,mg,"EXISTS"); | |
1113 | } | |
1114 | ||
1115 | int | |
8ac85365 | 1116 | magic_setdbline(SV *sv, MAGIC *mg) |
79072805 | 1117 | { |
11343788 | 1118 | dTHR; |
79072805 LW |
1119 | OP *o; |
1120 | I32 i; | |
1121 | GV* gv; | |
1122 | SV** svp; | |
1123 | ||
1124 | gv = DBline; | |
1125 | i = SvTRUE(sv); | |
188ea221 | 1126 | svp = av_fetch(GvAV(gv), |
5aabfad6 | 1127 | atoi(MgPV(mg,na)), FALSE); |
8990e307 | 1128 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 1129 | o->op_private = i; |
79072805 LW |
1130 | else |
1131 | warn("Can't break at that line\n"); | |
1132 | return 0; | |
1133 | } | |
1134 | ||
1135 | int | |
8ac85365 | 1136 | magic_getarylen(SV *sv, MAGIC *mg) |
79072805 | 1137 | { |
0f15f207 | 1138 | dTHR; |
a0d0e21e | 1139 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 LW |
1140 | return 0; |
1141 | } | |
1142 | ||
1143 | int | |
8ac85365 | 1144 | magic_setarylen(SV *sv, MAGIC *mg) |
79072805 | 1145 | { |
0f15f207 | 1146 | dTHR; |
a0d0e21e LW |
1147 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
1148 | return 0; | |
1149 | } | |
1150 | ||
1151 | int | |
8ac85365 | 1152 | magic_getpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1153 | { |
1154 | SV* lsv = LvTARG(sv); | |
1155 | ||
1156 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1157 | mg = mg_find(lsv, 'g'); | |
76e3520e | 1158 | if (mg && mg->mg_length >= 0) { |
0f15f207 | 1159 | dTHR; |
76e3520e | 1160 | sv_setiv(sv, mg->mg_length + curcop->cop_arybase); |
a0d0e21e LW |
1161 | return 0; |
1162 | } | |
1163 | } | |
1164 | (void)SvOK_off(sv); | |
1165 | return 0; | |
1166 | } | |
1167 | ||
1168 | int | |
8ac85365 | 1169 | magic_setpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1170 | { |
1171 | SV* lsv = LvTARG(sv); | |
1172 | SSize_t pos; | |
1173 | STRLEN len; | |
1174 | ||
1175 | mg = 0; | |
1176 | ||
1177 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1178 | mg = mg_find(lsv, 'g'); | |
1179 | if (!mg) { | |
1180 | if (!SvOK(sv)) | |
1181 | return 0; | |
1182 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1183 | mg = mg_find(lsv, 'g'); | |
1184 | } | |
1185 | else if (!SvOK(sv)) { | |
76e3520e | 1186 | mg->mg_length = -1; |
a0d0e21e LW |
1187 | return 0; |
1188 | } | |
1189 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1190 | ||
0f15f207 | 1191 | WITH_THR(pos = SvIV(sv) - curcop->cop_arybase); |
a0d0e21e LW |
1192 | if (pos < 0) { |
1193 | pos += len; | |
1194 | if (pos < 0) | |
1195 | pos = 0; | |
1196 | } | |
1197 | else if (pos > len) | |
1198 | pos = len; | |
76e3520e | 1199 | mg->mg_length = pos; |
71be2cbc | 1200 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1201 | |
79072805 LW |
1202 | return 0; |
1203 | } | |
1204 | ||
1205 | int | |
8ac85365 | 1206 | magic_getglob(SV *sv, MAGIC *mg) |
79072805 | 1207 | { |
8646b087 | 1208 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1209 | SvFAKE_off(sv); | |
946ec16e | 1210 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1211 | SvFAKE_on(sv); |
1212 | } | |
1213 | else | |
946ec16e | 1214 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1215 | return 0; |
1216 | } | |
1217 | ||
1218 | int | |
8ac85365 | 1219 | magic_setglob(SV *sv, MAGIC *mg) |
79072805 LW |
1220 | { |
1221 | register char *s; | |
1222 | GV* gv; | |
1223 | ||
1224 | if (!SvOK(sv)) | |
1225 | return 0; | |
463ee0b2 | 1226 | s = SvPV(sv, na); |
79072805 LW |
1227 | if (*s == '*' && s[1]) |
1228 | s++; | |
85e6fe83 | 1229 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1230 | if (sv == (SV*)gv) |
1231 | return 0; | |
1232 | if (GvGP(sv)) | |
88e89b8a | 1233 | gp_free((GV*)sv); |
79072805 | 1234 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1235 | return 0; |
1236 | } | |
1237 | ||
1238 | int | |
8ac85365 | 1239 | magic_setsubstr(SV *sv, MAGIC *mg) |
79072805 | 1240 | { |
8990e307 LW |
1241 | STRLEN len; |
1242 | char *tmps = SvPV(sv,len); | |
1243 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1244 | return 0; |
1245 | } | |
1246 | ||
1247 | int | |
8ac85365 | 1248 | magic_gettaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1249 | { |
a863c7d1 | 1250 | dTHR; |
76e3520e GS |
1251 | TAINT_IF((mg->mg_length & 1) || |
1252 | (mg->mg_length & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1253 | return 0; |
1254 | } | |
1255 | ||
1256 | int | |
8ac85365 | 1257 | magic_settaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1258 | { |
11343788 | 1259 | dTHR; |
748a9306 LW |
1260 | if (localizing) { |
1261 | if (localizing == 1) | |
76e3520e | 1262 | mg->mg_length <<= 1; |
748a9306 | 1263 | else |
76e3520e | 1264 | mg->mg_length >>= 1; |
a0d0e21e | 1265 | } |
748a9306 | 1266 | else if (tainted) |
76e3520e | 1267 | mg->mg_length |= 1; |
748a9306 | 1268 | else |
76e3520e | 1269 | mg->mg_length &= ~1; |
463ee0b2 LW |
1270 | return 0; |
1271 | } | |
1272 | ||
1273 | int | |
8ac85365 | 1274 | magic_setvec(SV *sv, MAGIC *mg) |
79072805 LW |
1275 | { |
1276 | do_vecset(sv); /* XXX slurp this routine */ | |
1277 | return 0; | |
1278 | } | |
1279 | ||
1280 | int | |
8ac85365 | 1281 | magic_getdefelem(SV *sv, MAGIC *mg) |
5f05dabc | 1282 | { |
71be2cbc | 1283 | SV *targ = Nullsv; |
5f05dabc | 1284 | if (LvTARGLEN(sv)) { |
68dc0745 | 1285 | if (mg->mg_obj) { |
1286 | HV* hv = (HV*)LvTARG(sv); | |
1287 | HE* he = hv_fetch_ent(hv, mg->mg_obj, FALSE, 0); | |
1288 | if (he) | |
1289 | targ = HeVAL(he); | |
1290 | } | |
1291 | else { | |
93965878 | 1292 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1293 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1294 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1295 | } | |
1296 | if (targ && targ != &sv_undef) { | |
e858de61 | 1297 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 | 1298 | /* somebody else defined it for us */ |
1299 | SvREFCNT_dec(LvTARG(sv)); | |
1300 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1301 | LvTARGLEN(sv) = 0; | |
1302 | SvREFCNT_dec(mg->mg_obj); | |
1303 | mg->mg_obj = Nullsv; | |
1304 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1305 | } | |
5f05dabc | 1306 | } |
71be2cbc | 1307 | else |
1308 | targ = LvTARG(sv); | |
1309 | sv_setsv(sv, targ ? targ : &sv_undef); | |
1310 | return 0; | |
1311 | } | |
1312 | ||
1313 | int | |
8ac85365 | 1314 | magic_setdefelem(SV *sv, MAGIC *mg) |
71be2cbc | 1315 | { |
1316 | if (LvTARGLEN(sv)) | |
68dc0745 | 1317 | vivify_defelem(sv); |
1318 | if (LvTARG(sv)) { | |
5f05dabc | 1319 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1320 | SvSETMAGIC(LvTARG(sv)); |
1321 | } | |
5f05dabc | 1322 | return 0; |
1323 | } | |
1324 | ||
1325 | int | |
8ac85365 | 1326 | magic_freedefelem(SV *sv, MAGIC *mg) |
5f05dabc | 1327 | { |
1328 | SvREFCNT_dec(LvTARG(sv)); | |
71be2cbc | 1329 | return 0; |
1330 | } | |
1331 | ||
1332 | void | |
8ac85365 | 1333 | vivify_defelem(SV *sv) |
71be2cbc | 1334 | { |
e858de61 | 1335 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
68dc0745 | 1336 | MAGIC* mg; |
1337 | SV* value; | |
71be2cbc | 1338 | |
68dc0745 | 1339 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1340 | return; |
68dc0745 | 1341 | if (mg->mg_obj) { |
1342 | HV* hv = (HV*)LvTARG(sv); | |
1343 | HE* he = hv_fetch_ent(hv, mg->mg_obj, TRUE, 0); | |
1344 | if (!he || (value = HeVAL(he)) == &sv_undef) | |
1345 | croak(no_helem, SvPV(mg->mg_obj, na)); | |
71be2cbc | 1346 | } |
68dc0745 | 1347 | else { |
1348 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1349 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1350 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1351 | else { | |
1352 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
1353 | if (!svp || (value = *svp) == &sv_undef) | |
1354 | croak(no_aelem, (I32)LvTARGOFF(sv)); | |
1355 | } | |
1356 | } | |
3e3baf6d | 1357 | (void)SvREFCNT_inc(value); |
68dc0745 | 1358 | SvREFCNT_dec(LvTARG(sv)); |
1359 | LvTARG(sv) = value; | |
71be2cbc | 1360 | LvTARGLEN(sv) = 0; |
68dc0745 | 1361 | SvREFCNT_dec(mg->mg_obj); |
1362 | mg->mg_obj = Nullsv; | |
1363 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1364 | } |
1365 | ||
1366 | int | |
8ac85365 | 1367 | magic_setmglob(SV *sv, MAGIC *mg) |
93a17b20 | 1368 | { |
76e3520e | 1369 | mg->mg_length = -1; |
c6496cc7 | 1370 | SvSCREAM_off(sv); |
93a17b20 LW |
1371 | return 0; |
1372 | } | |
1373 | ||
1374 | int | |
8ac85365 | 1375 | magic_setbm(SV *sv, MAGIC *mg) |
79072805 | 1376 | { |
463ee0b2 | 1377 | sv_unmagic(sv, 'B'); |
79072805 LW |
1378 | SvVALID_off(sv); |
1379 | return 0; | |
1380 | } | |
1381 | ||
1382 | int | |
8ac85365 | 1383 | magic_setfm(SV *sv, MAGIC *mg) |
55497cff | 1384 | { |
1385 | sv_unmagic(sv, 'f'); | |
1386 | SvCOMPILED_off(sv); | |
1387 | return 0; | |
1388 | } | |
1389 | ||
1390 | int | |
8ac85365 | 1391 | magic_setuvar(SV *sv, MAGIC *mg) |
79072805 LW |
1392 | { |
1393 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1394 | ||
1395 | if (uf && uf->uf_set) | |
1396 | (*uf->uf_set)(uf->uf_index, sv); | |
1397 | return 0; | |
1398 | } | |
1399 | ||
c277df42 IZ |
1400 | int |
1401 | magic_freeregexp(SV *sv, MAGIC *mg) | |
1402 | { | |
1403 | regexp *re = (regexp *)mg->mg_obj; | |
1404 | ReREFCNT_dec(re); | |
1405 | return 0; | |
1406 | } | |
1407 | ||
7a4c00b4 | 1408 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1409 | int |
8ac85365 | 1410 | magic_setcollxfrm(SV *sv, MAGIC *mg) |
bbce6d69 | 1411 | { |
1412 | /* | |
1413 | * René Descartes said "I think not." | |
1414 | * and vanished with a faint plop. | |
1415 | */ | |
7a4c00b4 | 1416 | if (mg->mg_ptr) { |
1417 | Safefree(mg->mg_ptr); | |
1418 | mg->mg_ptr = NULL; | |
76e3520e | 1419 | mg->mg_length = -1; |
7a4c00b4 | 1420 | } |
bbce6d69 | 1421 | return 0; |
1422 | } | |
7a4c00b4 | 1423 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1424 | |
1425 | int | |
8ac85365 | 1426 | magic_set(SV *sv, MAGIC *mg) |
79072805 | 1427 | { |
11343788 | 1428 | dTHR; |
79072805 LW |
1429 | register char *s; |
1430 | I32 i; | |
8990e307 | 1431 | STRLEN len; |
79072805 | 1432 | switch (*mg->mg_ptr) { |
748a9306 LW |
1433 | case '\001': /* ^A */ |
1434 | sv_setsv(bodytarget, sv); | |
1435 | break; | |
79072805 | 1436 | case '\004': /* ^D */ |
8990e307 | 1437 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1438 | DEBUG_x(dump_all()); |
1439 | break; | |
28f23441 | 1440 | case '\005': /* ^E */ |
1441 | #ifdef VMS | |
1442 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1443 | #else | |
22fae026 TM |
1444 | #ifdef WIN32 |
1445 | SetLastError( SvIV(sv) ); | |
1446 | #else | |
f86702cc | 1447 | /* will anyone ever use this? */ |
1448 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
28f23441 | 1449 | #endif |
22fae026 | 1450 | #endif |
28f23441 | 1451 | break; |
79072805 | 1452 | case '\006': /* ^F */ |
463ee0b2 | 1453 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1454 | break; |
a0d0e21e LW |
1455 | case '\010': /* ^H */ |
1456 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1457 | break; | |
79072805 LW |
1458 | case '\t': /* ^I */ |
1459 | if (inplace) | |
1460 | Safefree(inplace); | |
1461 | if (SvOK(sv)) | |
a0d0e21e | 1462 | inplace = savepv(SvPV(sv,na)); |
79072805 LW |
1463 | else |
1464 | inplace = Nullch; | |
1465 | break; | |
28f23441 | 1466 | case '\017': /* ^O */ |
1467 | if (osname) | |
1468 | Safefree(osname); | |
1469 | if (SvOK(sv)) | |
1470 | osname = savepv(SvPV(sv,na)); | |
1471 | else | |
1472 | osname = Nullch; | |
1473 | break; | |
79072805 | 1474 | case '\020': /* ^P */ |
84902520 | 1475 | perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1476 | break; |
1477 | case '\024': /* ^T */ | |
88e89b8a | 1478 | #ifdef BIG_TIME |
1479 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); | |
1480 | #else | |
85e6fe83 | 1481 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1482 | #endif |
79072805 LW |
1483 | break; |
1484 | case '\027': /* ^W */ | |
463ee0b2 | 1485 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1486 | break; |
1487 | case '.': | |
748a9306 LW |
1488 | if (localizing) { |
1489 | if (localizing == 1) | |
1490 | save_sptr((SV**)&last_in_gv); | |
1491 | } | |
88e89b8a | 1492 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e | 1493 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 LW |
1494 | break; |
1495 | case '^': | |
a0d0e21e LW |
1496 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1497 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1498 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1499 | break; |
1500 | case '~': | |
a0d0e21e LW |
1501 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1502 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1503 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1504 | break; |
1505 | case '=': | |
a0d0e21e | 1506 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1507 | break; |
1508 | case '-': | |
a0d0e21e LW |
1509 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1510 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) | |
1511 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; | |
79072805 LW |
1512 | break; |
1513 | case '%': | |
a0d0e21e | 1514 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1515 | break; |
1516 | case '|': | |
4b65379b CS |
1517 | { |
1518 | IO *io = GvIOp(defoutgv); | |
1519 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) | |
1520 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1521 | else { | |
1522 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1523 | PerlIO *ofp = IoOFP(io); | |
1524 | if (ofp) | |
1525 | (void)PerlIO_flush(ofp); | |
1526 | IoFLAGS(io) |= IOf_FLUSH; | |
1527 | } | |
1528 | } | |
79072805 LW |
1529 | } |
1530 | break; | |
1531 | case '*': | |
463ee0b2 | 1532 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1533 | multiline = (i != 0); |
1534 | break; | |
1535 | case '/': | |
c07a80fd | 1536 | SvREFCNT_dec(nrs); |
1537 | nrs = newSVsv(sv); | |
1538 | SvREFCNT_dec(rs); | |
1539 | rs = SvREFCNT_inc(nrs); | |
79072805 LW |
1540 | break; |
1541 | case '\\': | |
1542 | if (ors) | |
1543 | Safefree(ors); | |
e3c19b7b CS |
1544 | if (SvOK(sv) || SvGMAGICAL(sv)) |
1545 | ors = savepv(SvPV(sv,orslen)); | |
1546 | else { | |
1547 | ors = Nullch; | |
1548 | orslen = 0; | |
1549 | } | |
79072805 LW |
1550 | break; |
1551 | case ',': | |
1552 | if (ofs) | |
1553 | Safefree(ofs); | |
a0d0e21e | 1554 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 LW |
1555 | break; |
1556 | case '#': | |
1557 | if (ofmt) | |
1558 | Safefree(ofmt); | |
a0d0e21e | 1559 | ofmt = savepv(SvPV(sv,na)); |
79072805 LW |
1560 | break; |
1561 | case '[': | |
a0d0e21e | 1562 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1563 | break; |
1564 | case '?': | |
ff0cee69 | 1565 | #ifdef COMPLEX_STATUS |
1566 | if (localizing == 2) { | |
1567 | statusvalue = LvTARGOFF(sv); | |
1568 | statusvalue_vms = LvTARGLEN(sv); | |
1569 | } | |
1570 | else | |
1571 | #endif | |
1572 | #ifdef VMSISH_STATUS | |
1573 | if (VMSISH_STATUS) | |
1574 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1575 | else | |
1576 | #endif | |
1577 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1578 | break; |
1579 | case '!': | |
f86702cc | 1580 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), |
1581 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); | |
79072805 LW |
1582 | break; |
1583 | case '<': | |
463ee0b2 | 1584 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1585 | if (delaymagic) { |
1586 | delaymagic |= DM_RUID; | |
1587 | break; /* don't do magic till later */ | |
1588 | } | |
1589 | #ifdef HAS_SETRUID | |
85e6fe83 | 1590 | (void)setruid((Uid_t)uid); |
79072805 LW |
1591 | #else |
1592 | #ifdef HAS_SETREUID | |
85e6fe83 | 1593 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 | 1594 | #else |
85e6fe83 LW |
1595 | #ifdef HAS_SETRESUID |
1596 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); | |
79072805 LW |
1597 | #else |
1598 | if (uid == euid) /* special case $< = $> */ | |
76e3520e | 1599 | (void)PerlProc_setuid(uid); |
a0d0e21e | 1600 | else { |
76e3520e | 1601 | uid = (I32)PerlProc_getuid(); |
463ee0b2 | 1602 | croak("setruid() not implemented"); |
a0d0e21e | 1603 | } |
79072805 LW |
1604 | #endif |
1605 | #endif | |
85e6fe83 | 1606 | #endif |
76e3520e | 1607 | uid = (I32)PerlProc_getuid(); |
4633a7c4 | 1608 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1609 | break; |
1610 | case '>': | |
463ee0b2 | 1611 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1612 | if (delaymagic) { |
1613 | delaymagic |= DM_EUID; | |
1614 | break; /* don't do magic till later */ | |
1615 | } | |
1616 | #ifdef HAS_SETEUID | |
85e6fe83 | 1617 | (void)seteuid((Uid_t)euid); |
79072805 LW |
1618 | #else |
1619 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1620 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1621 | #else | |
1622 | #ifdef HAS_SETRESUID | |
1623 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); | |
79072805 LW |
1624 | #else |
1625 | if (euid == uid) /* special case $> = $< */ | |
76e3520e | 1626 | PerlProc_setuid(euid); |
a0d0e21e | 1627 | else { |
76e3520e | 1628 | euid = (I32)PerlProc_geteuid(); |
463ee0b2 | 1629 | croak("seteuid() not implemented"); |
a0d0e21e | 1630 | } |
79072805 LW |
1631 | #endif |
1632 | #endif | |
85e6fe83 | 1633 | #endif |
76e3520e | 1634 | euid = (I32)PerlProc_geteuid(); |
4633a7c4 | 1635 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1636 | break; |
1637 | case '(': | |
463ee0b2 | 1638 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1639 | if (delaymagic) { |
1640 | delaymagic |= DM_RGID; | |
1641 | break; /* don't do magic till later */ | |
1642 | } | |
1643 | #ifdef HAS_SETRGID | |
85e6fe83 | 1644 | (void)setrgid((Gid_t)gid); |
79072805 LW |
1645 | #else |
1646 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1647 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1648 | #else | |
1649 | #ifdef HAS_SETRESGID | |
1650 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); | |
79072805 LW |
1651 | #else |
1652 | if (gid == egid) /* special case $( = $) */ | |
76e3520e | 1653 | (void)PerlProc_setgid(gid); |
748a9306 | 1654 | else { |
76e3520e | 1655 | gid = (I32)PerlProc_getgid(); |
463ee0b2 | 1656 | croak("setrgid() not implemented"); |
748a9306 | 1657 | } |
79072805 LW |
1658 | #endif |
1659 | #endif | |
85e6fe83 | 1660 | #endif |
76e3520e | 1661 | gid = (I32)PerlProc_getgid(); |
4633a7c4 | 1662 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1663 | break; |
1664 | case ')': | |
5cd24f17 | 1665 | #ifdef HAS_SETGROUPS |
1666 | { | |
1667 | char *p = SvPV(sv, na); | |
1668 | Groups_t gary[NGROUPS]; | |
1669 | ||
1670 | SET_NUMERIC_STANDARD(); | |
1671 | while (isSPACE(*p)) | |
1672 | ++p; | |
1673 | egid = I_V(atof(p)); | |
1674 | for (i = 0; i < NGROUPS; ++i) { | |
1675 | while (*p && !isSPACE(*p)) | |
1676 | ++p; | |
1677 | while (isSPACE(*p)) | |
1678 | ++p; | |
1679 | if (!*p) | |
1680 | break; | |
1681 | gary[i] = I_V(atof(p)); | |
1682 | } | |
8cc95fdb | 1683 | if (i) |
1684 | (void)setgroups(i, gary); | |
5cd24f17 | 1685 | } |
1686 | #else /* HAS_SETGROUPS */ | |
463ee0b2 | 1687 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1688 | #endif /* HAS_SETGROUPS */ |
79072805 LW |
1689 | if (delaymagic) { |
1690 | delaymagic |= DM_EGID; | |
1691 | break; /* don't do magic till later */ | |
1692 | } | |
1693 | #ifdef HAS_SETEGID | |
85e6fe83 | 1694 | (void)setegid((Gid_t)egid); |
79072805 LW |
1695 | #else |
1696 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1697 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1698 | #else | |
1699 | #ifdef HAS_SETRESGID | |
1700 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); | |
79072805 LW |
1701 | #else |
1702 | if (egid == gid) /* special case $) = $( */ | |
76e3520e | 1703 | (void)PerlProc_setgid(egid); |
748a9306 | 1704 | else { |
76e3520e | 1705 | egid = (I32)PerlProc_getegid(); |
463ee0b2 | 1706 | croak("setegid() not implemented"); |
748a9306 | 1707 | } |
79072805 LW |
1708 | #endif |
1709 | #endif | |
85e6fe83 | 1710 | #endif |
76e3520e | 1711 | egid = (I32)PerlProc_getegid(); |
4633a7c4 | 1712 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1713 | break; |
1714 | case ':': | |
a0d0e21e | 1715 | chopset = SvPV_force(sv,na); |
79072805 LW |
1716 | break; |
1717 | case '0': | |
1718 | if (!origalen) { | |
1719 | s = origargv[0]; | |
1720 | s += strlen(s); | |
1721 | /* See if all the arguments are contiguous in memory */ | |
1722 | for (i = 1; i < origargc; i++) { | |
fb73857a | 1723 | if (origargv[i] == s + 1 |
1724 | #ifdef OS2 | |
1725 | || origargv[i] == s + 2 | |
1726 | #endif | |
1727 | ) | |
79072805 | 1728 | s += strlen(++s); /* this one is ok too */ |
fb73857a | 1729 | else |
1730 | break; | |
79072805 | 1731 | } |
bbce6d69 | 1732 | /* can grab env area too? */ |
fb73857a | 1733 | if (origenviron && (origenviron[0] == s + 1 |
1734 | #ifdef OS2 | |
1735 | || (origenviron[0] == s + 9 && (s += 8)) | |
1736 | #endif | |
1737 | )) { | |
66b1d557 | 1738 | my_setenv("NoNe SuCh", Nullch); |
79072805 LW |
1739 | /* force copy of environment */ |
1740 | for (i = 0; origenviron[i]; i++) | |
1741 | if (origenviron[i] == s + 1) | |
1742 | s += strlen(++s); | |
fb73857a | 1743 | else |
1744 | break; | |
79072805 LW |
1745 | } |
1746 | origalen = s - origargv[0]; | |
1747 | } | |
a0d0e21e | 1748 | s = SvPV_force(sv,len); |
8990e307 | 1749 | i = len; |
79072805 LW |
1750 | if (i >= origalen) { |
1751 | i = origalen; | |
fb73857a | 1752 | /* don't allow system to limit $0 seen by script */ |
1753 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
79072805 | 1754 | Copy(s, origargv[0], i, char); |
fb73857a | 1755 | s = origargv[0]+i; |
1756 | *s = '\0'; | |
79072805 LW |
1757 | } |
1758 | else { | |
1759 | Copy(s, origargv[0], i, char); | |
1760 | s = origargv[0]+i; | |
1761 | *s++ = '\0'; | |
1762 | while (++i < origalen) | |
8990e307 LW |
1763 | *s++ = ' '; |
1764 | s = origargv[0]+i; | |
ed6116ce | 1765 | for (i = 1; i < origargc; i++) |
8990e307 | 1766 | origargv[i] = Nullch; |
79072805 LW |
1767 | } |
1768 | break; | |
a863c7d1 MB |
1769 | #ifdef USE_THREADS |
1770 | case '@': | |
38a03e6e | 1771 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
1772 | break; |
1773 | #endif /* USE_THREADS */ | |
79072805 LW |
1774 | } |
1775 | return 0; | |
1776 | } | |
1777 | ||
f93b4edd MB |
1778 | #ifdef USE_THREADS |
1779 | int | |
8ac85365 | 1780 | magic_mutexfree(SV *sv, MAGIC *mg) |
f93b4edd MB |
1781 | { |
1782 | dTHR; | |
bc1f4c86 MB |
1783 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
1784 | (unsigned long)thr, (unsigned long)sv);) | |
f93b4edd MB |
1785 | if (MgOWNER(mg)) |
1786 | croak("panic: magic_mutexfree"); | |
1787 | MUTEX_DESTROY(MgMUTEXP(mg)); | |
1788 | COND_DESTROY(MgCONDP(mg)); | |
e55aaa0e | 1789 | SvREFCNT_dec(sv); |
f93b4edd MB |
1790 | return 0; |
1791 | } | |
1792 | #endif /* USE_THREADS */ | |
1793 | ||
79072805 | 1794 | I32 |
8ac85365 | 1795 | whichsig(char *sig) |
79072805 LW |
1796 | { |
1797 | register char **sigv; | |
1798 | ||
1799 | for (sigv = sig_name+1; *sigv; sigv++) | |
1800 | if (strEQ(sig,*sigv)) | |
8e07c86e | 1801 | return sig_num[sigv - sig_name]; |
79072805 LW |
1802 | #ifdef SIGCLD |
1803 | if (strEQ(sig,"CHLD")) | |
1804 | return SIGCLD; | |
1805 | #endif | |
1806 | #ifdef SIGCHLD | |
1807 | if (strEQ(sig,"CLD")) | |
1808 | return SIGCHLD; | |
1809 | #endif | |
1810 | return 0; | |
1811 | } | |
1812 | ||
84902520 TB |
1813 | static SV* sig_sv; |
1814 | ||
76e3520e | 1815 | STATIC void |
8ac85365 | 1816 | unwind_handler_stack(void *p) |
84902520 | 1817 | { |
ff26ac79 | 1818 | dTHR; |
84902520 TB |
1819 | U32 flags = *(U32*)p; |
1820 | ||
1821 | if (flags & 1) | |
1822 | savestack_ix -= 5; /* Unprotect save in progress. */ | |
1823 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
1824 | if (flags & 64) | |
1825 | SvREFCNT_dec(sig_sv); | |
1826 | } | |
1827 | ||
ecfc5424 | 1828 | Signal_t |
8ac85365 | 1829 | sighandler(int sig) |
79072805 LW |
1830 | { |
1831 | dSP; | |
00d579c5 | 1832 | GV *gv = Nullgv; |
a0d0e21e | 1833 | HV *st; |
84902520 | 1834 | SV *sv, *tSv = Sv; |
00d579c5 | 1835 | CV *cv = Nullcv; |
79072805 | 1836 | AV *oldstack; |
84902520 TB |
1837 | OP *myop = op; |
1838 | U32 flags = 0; | |
1839 | I32 o_save_i = savestack_ix, type; | |
c09156bb | 1840 | PERL_CONTEXT *cx; |
84902520 TB |
1841 | XPV *tXpv = Xpv; |
1842 | ||
1843 | if (savestack_ix + 15 <= savestack_max) | |
1844 | flags |= 1; | |
1845 | if (cxstack_ix < cxstack_max - 2) | |
1846 | flags |= 2; | |
1847 | if (markstack_ptr < markstack_max - 2) | |
1848 | flags |= 4; | |
1849 | if (retstack_ix < retstack_max - 2) | |
1850 | flags |= 8; | |
1851 | if (scopestack_ix < scopestack_max - 3) | |
1852 | flags |= 16; | |
1853 | ||
1854 | if (flags & 2) { /* POPBLOCK may decrease cxstack too early. */ | |
1855 | cxstack_ix++; /* Protect from overwrite. */ | |
1856 | cx = &cxstack[cxstack_ix]; | |
1857 | type = cx->cx_type; /* Can be during partial write. */ | |
1858 | cx->cx_type = CXt_NULL; /* Make it safe for unwind. */ | |
1859 | } | |
ff0cee69 | 1860 | if (!psig_ptr[sig]) |
1861 | die("Signal SIG%s received, but no signal handler set.\n", | |
1862 | sig_name[sig]); | |
1863 | ||
84902520 TB |
1864 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
1865 | infinity, so we fix 4 (in fact 5): */ | |
1866 | if (flags & 1) { | |
1867 | savestack_ix += 5; /* Protect save in progress. */ | |
1868 | o_save_i = savestack_ix; | |
76e3520e | 1869 | SAVEDESTRUCTOR(UNWINDHANDLER, (void*)&flags); |
84902520 TB |
1870 | } |
1871 | if (flags & 4) | |
1872 | markstack_ptr++; /* Protect mark. */ | |
1873 | if (flags & 8) { | |
1874 | retstack_ix++; | |
1875 | retstack[retstack_ix] = NULL; | |
1876 | } | |
1877 | if (flags & 16) | |
1878 | scopestack_ix += 1; | |
1879 | /* sv_2cv is too complicated, try a simpler variant first: */ | |
1880 | if (!SvROK(psig_ptr[sig]) || !(cv = (CV*)SvRV(psig_ptr[sig])) | |
1881 | || SvTYPE(cv) != SVt_PVCV) | |
1882 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); | |
1883 | ||
a0d0e21e | 1884 | if (!cv || !CvROOT(cv)) { |
79072805 LW |
1885 | if (dowarn) |
1886 | warn("SIG%s handler \"%s\" not defined.\n", | |
00d579c5 GS |
1887 | sig_name[sig], (gv ? GvENAME(gv) |
1888 | : ((cv && CvGV(cv)) | |
1889 | ? GvENAME(CvGV(cv)) | |
1890 | : "__ANON__"))); | |
1891 | goto cleanup; | |
79072805 LW |
1892 | } |
1893 | ||
88e89b8a | 1894 | oldstack = curstack; |
1895 | if (curstack != signalstack) | |
93965878 | 1896 | AvFILLp(signalstack) = 0; |
88e89b8a | 1897 | SWITCHSTACK(curstack, signalstack); |
79072805 | 1898 | |
84902520 | 1899 | if(psig_name[sig]) { |
88e89b8a | 1900 | sv = SvREFCNT_inc(psig_name[sig]); |
84902520 TB |
1901 | flags |= 64; |
1902 | sig_sv = sv; | |
1903 | } else { | |
ff0cee69 | 1904 | sv = sv_newmortal(); |
1905 | sv_setpv(sv,sig_name[sig]); | |
88e89b8a | 1906 | } |
a0d0e21e | 1907 | PUSHMARK(sp); |
79072805 | 1908 | PUSHs(sv); |
79072805 | 1909 | PUTBACK; |
a0d0e21e LW |
1910 | |
1911 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 LW |
1912 | |
1913 | SWITCHSTACK(signalstack, oldstack); | |
00d579c5 | 1914 | cleanup: |
84902520 TB |
1915 | if (flags & 1) |
1916 | savestack_ix -= 8; /* Unprotect save in progress. */ | |
1917 | if (flags & 2) { | |
1918 | cxstack[cxstack_ix].cx_type = type; | |
1919 | cxstack_ix -= 1; | |
1920 | } | |
1921 | if (flags & 4) | |
1922 | markstack_ptr--; | |
1923 | if (flags & 8) | |
1924 | retstack_ix--; | |
1925 | if (flags & 16) | |
1926 | scopestack_ix -= 1; | |
1927 | if (flags & 64) | |
1928 | SvREFCNT_dec(sv); | |
1929 | op = myop; /* Apparently not needed... */ | |
1930 | ||
1931 | Sv = tSv; /* Restore global temporaries. */ | |
1932 | Xpv = tXpv; | |
79072805 LW |
1933 | return; |
1934 | } | |
4e35701f NIS |
1935 | |
1936 |