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 | ||
33 | struct magic_state { | |
34 | SV* mgs_sv; | |
35 | U32 mgs_flags; | |
36 | }; | |
37 | typedef struct magic_state MGS; | |
38 | ||
39 | static void restore_magic _((void *p)); | |
40 | ||
48e43a1c | 41 | static void |
8ac85365 | 42 | save_magic(MGS *mgs, SV *sv) |
c07a80fd | 43 | { |
c07a80fd | 44 | assert(SvMAGICAL(sv)); |
45 | ||
c07a80fd | 46 | mgs->mgs_sv = sv; |
47 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
48 | SAVEDESTRUCTOR(restore_magic, mgs); | |
49 | ||
50 | SvMAGICAL_off(sv); | |
51 | SvREADONLY_off(sv); | |
52 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
c07a80fd | 53 | } |
54 | ||
55 | static void | |
8ac85365 | 56 | restore_magic(void *p) |
c07a80fd | 57 | { |
48e43a1c | 58 | MGS* mgs = (MGS*)p; |
c07a80fd | 59 | SV* sv = mgs->mgs_sv; |
60 | ||
61 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
62 | { | |
63 | if (mgs->mgs_flags) | |
64 | SvFLAGS(sv) |= mgs->mgs_flags; | |
65 | else | |
66 | mg_magical(sv); | |
67 | if (SvGMAGICAL(sv)) | |
68 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
69 | } | |
c07a80fd | 70 | } |
71 | ||
8990e307 | 72 | void |
8ac85365 | 73 | mg_magical(SV *sv) |
8990e307 LW |
74 | { |
75 | MAGIC* mg; | |
76 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
77 | MGVTBL* vtbl = mg->mg_virtual; | |
78 | if (vtbl) { | |
a0d0e21e | 79 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
80 | SvGMAGICAL_on(sv); |
81 | if (vtbl->svt_set) | |
82 | SvSMAGICAL_on(sv); | |
83 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) | |
84 | SvRMAGICAL_on(sv); | |
85 | } | |
86 | } | |
87 | } | |
88 | ||
79072805 | 89 | int |
8ac85365 | 90 | mg_get(SV *sv) |
79072805 | 91 | { |
48e43a1c | 92 | MGS mgs; |
79072805 | 93 | MAGIC* mg; |
c6496cc7 | 94 | MAGIC** mgp; |
760ac839 | 95 | int mgp_valid = 0; |
463ee0b2 | 96 | |
c07a80fd | 97 | ENTER; |
48e43a1c | 98 | save_magic(&mgs, sv); |
463ee0b2 | 99 | |
c6496cc7 | 100 | mgp = &SvMAGIC(sv); |
101 | while ((mg = *mgp) != 0) { | |
79072805 | 102 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e | 103 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
79072805 | 104 | (*vtbl->svt_get)(sv, mg); |
c6496cc7 | 105 | /* Ignore this magic if it's been deleted */ |
48e43a1c CS |
106 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
107 | (mg->mg_flags & MGf_GSKIP)) | |
108 | mgs.mgs_flags = 0; | |
a0d0e21e | 109 | } |
c6496cc7 | 110 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 111 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 112 | mgp = &mg->mg_moremagic; |
760ac839 LW |
113 | mgp_valid = 1; |
114 | } | |
115 | else | |
116 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 117 | } |
463ee0b2 | 118 | |
c07a80fd | 119 | LEAVE; |
79072805 LW |
120 | return 0; |
121 | } | |
122 | ||
123 | int | |
8ac85365 | 124 | mg_set(SV *sv) |
79072805 | 125 | { |
48e43a1c | 126 | MGS mgs; |
79072805 | 127 | MAGIC* mg; |
463ee0b2 LW |
128 | MAGIC* nextmg; |
129 | ||
c07a80fd | 130 | ENTER; |
48e43a1c | 131 | save_magic(&mgs, sv); |
463ee0b2 LW |
132 | |
133 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 134 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 135 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
136 | if (mg->mg_flags & MGf_GSKIP) { |
137 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
48e43a1c | 138 | mgs.mgs_flags = 0; |
a0d0e21e | 139 | } |
79072805 LW |
140 | if (vtbl && vtbl->svt_set) |
141 | (*vtbl->svt_set)(sv, mg); | |
142 | } | |
463ee0b2 | 143 | |
c07a80fd | 144 | LEAVE; |
79072805 LW |
145 | return 0; |
146 | } | |
147 | ||
148 | U32 | |
8ac85365 | 149 | mg_len(SV *sv) |
79072805 LW |
150 | { |
151 | MAGIC* mg; | |
748a9306 | 152 | char *junk; |
463ee0b2 | 153 | STRLEN len; |
463ee0b2 | 154 | |
79072805 LW |
155 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
156 | MGVTBL* vtbl = mg->mg_virtual; | |
85e6fe83 | 157 | if (vtbl && vtbl->svt_len) { |
48e43a1c CS |
158 | MGS mgs; |
159 | ||
c07a80fd | 160 | ENTER; |
48e43a1c | 161 | save_magic(&mgs, sv); |
a0d0e21e | 162 | /* omit MGf_GSKIP -- not changed here */ |
85e6fe83 | 163 | len = (*vtbl->svt_len)(sv, mg); |
c07a80fd | 164 | LEAVE; |
85e6fe83 LW |
165 | return len; |
166 | } | |
167 | } | |
168 | ||
748a9306 | 169 | junk = SvPV(sv, len); |
463ee0b2 | 170 | return len; |
79072805 LW |
171 | } |
172 | ||
93965878 NIS |
173 | I32 |
174 | mg_size(SV *sv) | |
175 | { | |
176 | MAGIC* mg; | |
177 | I32 len; | |
178 | ||
179 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
180 | MGVTBL* vtbl = mg->mg_virtual; | |
181 | if (vtbl && vtbl->svt_len) { | |
182 | MGS mgs; | |
183 | ENTER; | |
184 | /* omit MGf_GSKIP -- not changed here */ | |
185 | len = (*vtbl->svt_len)(sv, mg); | |
186 | LEAVE; | |
187 | return len; | |
188 | } | |
189 | } | |
190 | ||
191 | switch(SvTYPE(sv)) { | |
192 | case SVt_PVAV: | |
193 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
194 | return len; | |
195 | case SVt_PVHV: | |
196 | /* FIXME */ | |
197 | default: | |
198 | croak("Size magic not implemented"); | |
199 | break; | |
200 | } | |
201 | return 0; | |
202 | } | |
203 | ||
79072805 | 204 | int |
8ac85365 | 205 | mg_clear(SV *sv) |
79072805 | 206 | { |
48e43a1c | 207 | MGS mgs; |
79072805 | 208 | MAGIC* mg; |
463ee0b2 | 209 | |
c07a80fd | 210 | ENTER; |
48e43a1c | 211 | save_magic(&mgs, sv); |
463ee0b2 | 212 | |
79072805 LW |
213 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
214 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
215 | /* omit GSKIP -- never set here */ |
216 | ||
79072805 LW |
217 | if (vtbl && vtbl->svt_clear) |
218 | (*vtbl->svt_clear)(sv, mg); | |
219 | } | |
463ee0b2 | 220 | |
c07a80fd | 221 | LEAVE; |
79072805 LW |
222 | return 0; |
223 | } | |
224 | ||
93a17b20 | 225 | MAGIC* |
8ac85365 | 226 | mg_find(SV *sv, int type) |
93a17b20 LW |
227 | { |
228 | MAGIC* mg; | |
93a17b20 LW |
229 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
230 | if (mg->mg_type == type) | |
231 | return mg; | |
232 | } | |
233 | return 0; | |
234 | } | |
235 | ||
79072805 | 236 | int |
8ac85365 | 237 | mg_copy(SV *sv, SV *nsv, char *key, I32 klen) |
79072805 | 238 | { |
463ee0b2 | 239 | int count = 0; |
79072805 | 240 | MAGIC* mg; |
463ee0b2 LW |
241 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
242 | if (isUPPER(mg->mg_type)) { | |
a0d0e21e | 243 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 244 | count++; |
79072805 | 245 | } |
79072805 | 246 | } |
463ee0b2 | 247 | return count; |
79072805 LW |
248 | } |
249 | ||
250 | int | |
8ac85365 | 251 | mg_free(SV *sv) |
79072805 LW |
252 | { |
253 | MAGIC* mg; | |
254 | MAGIC* moremagic; | |
255 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
256 | MGVTBL* vtbl = mg->mg_virtual; | |
257 | moremagic = mg->mg_moremagic; | |
258 | if (vtbl && vtbl->svt_free) | |
259 | (*vtbl->svt_free)(sv, mg); | |
93a17b20 | 260 | if (mg->mg_ptr && mg->mg_type != 'g') |
88e89b8a | 261 | if (mg->mg_len >= 0) |
262 | Safefree(mg->mg_ptr); | |
263 | else if (mg->mg_len == HEf_SVKEY) | |
264 | SvREFCNT_dec((SV*)mg->mg_ptr); | |
85e6fe83 | 265 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 266 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
267 | Safefree(mg); |
268 | } | |
269 | SvMAGIC(sv) = 0; | |
270 | return 0; | |
271 | } | |
272 | ||
273 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
274 | #include <signal.h> | |
275 | #endif | |
276 | ||
93a17b20 | 277 | U32 |
8ac85365 | 278 | magic_len(SV *sv, MAGIC *mg) |
93a17b20 | 279 | { |
a863c7d1 | 280 | dTHR; |
93a17b20 LW |
281 | register I32 paren; |
282 | register char *s; | |
283 | register I32 i; | |
bbce6d69 | 284 | register REGEXP *rx; |
748a9306 | 285 | char *t; |
93a17b20 LW |
286 | |
287 | switch (*mg->mg_ptr) { | |
288 | case '1': case '2': case '3': case '4': | |
289 | case '5': case '6': case '7': case '8': case '9': case '&': | |
bbce6d69 | 290 | if (curpm && (rx = curpm->op_pmregexp)) { |
93a17b20 LW |
291 | paren = atoi(mg->mg_ptr); |
292 | getparen: | |
bbce6d69 | 293 | if (paren <= rx->nparens && |
294 | (s = rx->startp[paren]) && | |
295 | (t = rx->endp[paren])) | |
296 | { | |
748a9306 | 297 | i = t - s; |
71be2cbc | 298 | if (i >= 0) |
93a17b20 | 299 | return i; |
93a17b20 | 300 | } |
93a17b20 | 301 | } |
748a9306 | 302 | return 0; |
93a17b20 | 303 | case '+': |
bbce6d69 | 304 | if (curpm && (rx = curpm->op_pmregexp)) { |
305 | paren = rx->lastparen; | |
13f57bf8 CS |
306 | if (paren) |
307 | goto getparen; | |
93a17b20 | 308 | } |
748a9306 | 309 | return 0; |
93a17b20 | 310 | case '`': |
bbce6d69 | 311 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 | 312 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 | 313 | i = rx->startp[0] - s; |
71be2cbc | 314 | if (i >= 0) |
93a17b20 | 315 | return i; |
93a17b20 | 316 | } |
93a17b20 | 317 | } |
748a9306 | 318 | return 0; |
93a17b20 | 319 | case '\'': |
bbce6d69 | 320 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 CS |
321 | if (rx->subend && (s = rx->endp[0])) { |
322 | i = rx->subend - s; | |
323 | if (i >= 0) | |
5cd24f17 | 324 | return i; |
93a17b20 | 325 | } |
93a17b20 | 326 | } |
748a9306 | 327 | return 0; |
93a17b20 LW |
328 | case ',': |
329 | return (STRLEN)ofslen; | |
330 | case '\\': | |
331 | return (STRLEN)orslen; | |
332 | } | |
333 | magic_get(sv,mg); | |
334 | if (!SvPOK(sv) && SvNIOK(sv)) | |
463ee0b2 | 335 | sv_2pv(sv, &na); |
93a17b20 LW |
336 | if (SvPOK(sv)) |
337 | return SvCUR(sv); | |
338 | return 0; | |
339 | } | |
340 | ||
79072805 | 341 | int |
8ac85365 | 342 | magic_get(SV *sv, MAGIC *mg) |
79072805 | 343 | { |
a863c7d1 | 344 | dTHR; |
79072805 LW |
345 | register I32 paren; |
346 | register char *s; | |
347 | register I32 i; | |
bbce6d69 | 348 | register REGEXP *rx; |
748a9306 | 349 | char *t; |
79072805 LW |
350 | |
351 | switch (*mg->mg_ptr) { | |
748a9306 LW |
352 | case '\001': /* ^A */ |
353 | sv_setsv(sv, bodytarget); | |
354 | break; | |
79072805 | 355 | case '\004': /* ^D */ |
188ea221 | 356 | sv_setiv(sv, (IV)(debug & 32767)); |
79072805 | 357 | break; |
28f23441 | 358 | case '\005': /* ^E */ |
359 | #ifdef VMS | |
360 | { | |
361 | # include <descrip.h> | |
362 | # include <starlet.h> | |
363 | char msg[255]; | |
364 | $DESCRIPTOR(msgdsc,msg); | |
946ec16e | 365 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 | 366 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
367 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
368 | else | |
369 | sv_setpv(sv,""); | |
370 | } | |
371 | #else | |
88e89b8a | 372 | #ifdef OS2 |
fb73857a | 373 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
374 | sv_setnv(sv, (double)errno); | |
375 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
376 | } else { | |
377 | if (errno != errno_isOS2) | |
378 | Perl_rc = _syserrno(); | |
379 | sv_setnv(sv, (double)Perl_rc); | |
380 | sv_setpv(sv, os2error(Perl_rc)); | |
381 | } | |
88e89b8a | 382 | #else |
22fae026 TM |
383 | #ifdef WIN32 |
384 | { | |
385 | DWORD dwErr = GetLastError(); | |
386 | sv_setnv(sv, (double)dwErr); | |
387 | if (dwErr) | |
388 | win32_str_os_error(sv, dwErr); | |
389 | else | |
390 | sv_setpv(sv, ""); | |
391 | SetLastError(dwErr); | |
392 | } | |
393 | #else | |
946ec16e | 394 | sv_setnv(sv, (double)errno); |
28f23441 | 395 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
396 | #endif | |
88e89b8a | 397 | #endif |
22fae026 | 398 | #endif |
946ec16e | 399 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 400 | break; |
79072805 | 401 | case '\006': /* ^F */ |
188ea221 | 402 | sv_setiv(sv, (IV)maxsysfd); |
79072805 | 403 | break; |
a0d0e21e | 404 | case '\010': /* ^H */ |
188ea221 | 405 | sv_setiv(sv, (IV)hints); |
a0d0e21e | 406 | break; |
79072805 LW |
407 | case '\t': /* ^I */ |
408 | if (inplace) | |
409 | sv_setpv(sv, inplace); | |
410 | else | |
188ea221 | 411 | sv_setsv(sv, &sv_undef); |
79072805 | 412 | break; |
28f23441 | 413 | case '\017': /* ^O */ |
188ea221 | 414 | sv_setpv(sv, osname); |
28f23441 | 415 | break; |
79072805 | 416 | case '\020': /* ^P */ |
188ea221 | 417 | sv_setiv(sv, (IV)perldb); |
79072805 | 418 | break; |
fb73857a | 419 | case '\023': /* ^S */ |
d58bf5aa MB |
420 | { |
421 | dTHR; | |
422 | if (lex_state != LEX_NOTPARSING) | |
423 | SvOK_off(sv); | |
424 | else if (in_eval) | |
425 | sv_setiv(sv, 1); | |
426 | else | |
427 | sv_setiv(sv, 0); | |
428 | } | |
fb73857a | 429 | break; |
79072805 | 430 | case '\024': /* ^T */ |
88e89b8a | 431 | #ifdef BIG_TIME |
188ea221 | 432 | sv_setnv(sv, basetime); |
88e89b8a | 433 | #else |
188ea221 | 434 | sv_setiv(sv, (IV)basetime); |
88e89b8a | 435 | #endif |
79072805 LW |
436 | break; |
437 | case '\027': /* ^W */ | |
188ea221 | 438 | sv_setiv(sv, (IV)dowarn); |
79072805 LW |
439 | break; |
440 | case '1': case '2': case '3': case '4': | |
441 | case '5': case '6': case '7': case '8': case '9': case '&': | |
bbce6d69 | 442 | if (curpm && (rx = curpm->op_pmregexp)) { |
a863c7d1 MB |
443 | /* |
444 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
445 | * XXX Does the new way break anything? | |
446 | */ | |
447 | paren = atoi(mg->mg_ptr); | |
79072805 | 448 | getparen: |
bbce6d69 | 449 | if (paren <= rx->nparens && |
450 | (s = rx->startp[paren]) && | |
451 | (t = rx->endp[paren])) | |
452 | { | |
748a9306 | 453 | i = t - s; |
13f57bf8 | 454 | getrx: |
748a9306 | 455 | if (i >= 0) { |
13f57bf8 CS |
456 | bool was_tainted; |
457 | if (tainting) { | |
458 | was_tainted = tainted; | |
459 | tainted = FALSE; | |
460 | } | |
79072805 | 461 | sv_setpvn(sv,s,i); |
13f57bf8 | 462 | if (tainting) |
48c036b1 GS |
463 | tainted = (was_tainted || RX_MATCH_TAINTED(rx) || |
464 | (curpm->op_pmflags & PMf_TAINTMEM)); | |
748a9306 LW |
465 | break; |
466 | } | |
79072805 | 467 | } |
79072805 | 468 | } |
748a9306 | 469 | sv_setsv(sv,&sv_undef); |
79072805 LW |
470 | break; |
471 | case '+': | |
bbce6d69 | 472 | if (curpm && (rx = curpm->op_pmregexp)) { |
473 | paren = rx->lastparen; | |
a0d0e21e LW |
474 | if (paren) |
475 | goto getparen; | |
79072805 | 476 | } |
748a9306 | 477 | sv_setsv(sv,&sv_undef); |
79072805 LW |
478 | break; |
479 | case '`': | |
bbce6d69 | 480 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 | 481 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 | 482 | i = rx->startp[0] - s; |
13f57bf8 | 483 | goto getrx; |
79072805 | 484 | } |
79072805 | 485 | } |
748a9306 | 486 | sv_setsv(sv,&sv_undef); |
79072805 LW |
487 | break; |
488 | case '\'': | |
bbce6d69 | 489 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 CS |
490 | if (rx->subend && (s = rx->endp[0])) { |
491 | i = rx->subend - s; | |
492 | goto getrx; | |
79072805 | 493 | } |
79072805 | 494 | } |
748a9306 | 495 | sv_setsv(sv,&sv_undef); |
79072805 LW |
496 | break; |
497 | case '.': | |
498 | #ifndef lint | |
a0d0e21e | 499 | if (GvIO(last_in_gv)) { |
188ea221 | 500 | sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv))); |
79072805 LW |
501 | } |
502 | #endif | |
503 | break; | |
504 | case '?': | |
809a5acc MB |
505 | { |
506 | dTHR; | |
507 | sv_setiv(sv, (IV)STATUS_CURRENT); | |
ff0cee69 | 508 | #ifdef COMPLEX_STATUS |
809a5acc MB |
509 | LvTARGOFF(sv) = statusvalue; |
510 | LvTARGLEN(sv) = statusvalue_vms; | |
ff0cee69 | 511 | #endif |
809a5acc | 512 | } |
79072805 LW |
513 | break; |
514 | case '^': | |
a0d0e21e | 515 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 LW |
516 | if (s) |
517 | sv_setpv(sv,s); | |
518 | else { | |
519 | sv_setpv(sv,GvENAME(defoutgv)); | |
520 | sv_catpv(sv,"_TOP"); | |
521 | } | |
522 | break; | |
523 | case '~': | |
a0d0e21e | 524 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 LW |
525 | if (!s) |
526 | s = GvENAME(defoutgv); | |
527 | sv_setpv(sv,s); | |
528 | break; | |
529 | #ifndef lint | |
530 | case '=': | |
188ea221 | 531 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 LW |
532 | break; |
533 | case '-': | |
188ea221 | 534 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 LW |
535 | break; |
536 | case '%': | |
188ea221 | 537 | sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv))); |
79072805 LW |
538 | break; |
539 | #endif | |
540 | case ':': | |
541 | break; | |
542 | case '/': | |
543 | break; | |
544 | case '[': | |
0f15f207 | 545 | WITH_THR(sv_setiv(sv, (IV)curcop->cop_arybase)); |
79072805 LW |
546 | break; |
547 | case '|': | |
188ea221 | 548 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
549 | break; |
550 | case ',': | |
551 | sv_setpvn(sv,ofs,ofslen); | |
552 | break; | |
553 | case '\\': | |
554 | sv_setpvn(sv,ors,orslen); | |
555 | break; | |
556 | case '#': | |
557 | sv_setpv(sv,ofmt); | |
558 | break; | |
559 | case '!': | |
a5f75d66 | 560 | #ifdef VMS |
946ec16e | 561 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 562 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 563 | #else |
88e89b8a | 564 | { |
565 | int saveerrno = errno; | |
946ec16e | 566 | sv_setnv(sv, (double)errno); |
88e89b8a | 567 | #ifdef OS2 |
568 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
569 | else | |
a5f75d66 | 570 | #endif |
2304df62 | 571 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 572 | errno = saveerrno; |
573 | } | |
574 | #endif | |
946ec16e | 575 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
576 | break; |
577 | case '<': | |
188ea221 | 578 | sv_setiv(sv, (IV)uid); |
79072805 LW |
579 | break; |
580 | case '>': | |
188ea221 | 581 | sv_setiv(sv, (IV)euid); |
79072805 LW |
582 | break; |
583 | case '(': | |
188ea221 | 584 | sv_setiv(sv, (IV)gid); |
fc36a67e | 585 | sv_setpvf(sv, "%Vd", (IV)gid); |
79072805 LW |
586 | goto add_groups; |
587 | case ')': | |
188ea221 | 588 | sv_setiv(sv, (IV)egid); |
fc36a67e | 589 | sv_setpvf(sv, "%Vd", (IV)egid); |
79072805 | 590 | add_groups: |
79072805 | 591 | #ifdef HAS_GETGROUPS |
79072805 | 592 | { |
a0d0e21e | 593 | Groups_t gary[NGROUPS]; |
79072805 | 594 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 595 | while (--i >= 0) |
fc36a67e | 596 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 LW |
597 | } |
598 | #endif | |
29355cf7 | 599 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
600 | break; |
601 | case '*': | |
602 | break; | |
603 | case '0': | |
604 | break; | |
a863c7d1 MB |
605 | #ifdef USE_THREADS |
606 | case '@': | |
38a03e6e | 607 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
608 | break; |
609 | #endif /* USE_THREADS */ | |
79072805 | 610 | } |
a0d0e21e | 611 | return 0; |
79072805 LW |
612 | } |
613 | ||
614 | int | |
8ac85365 | 615 | magic_getuvar(SV *sv, MAGIC *mg) |
79072805 LW |
616 | { |
617 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
618 | ||
619 | if (uf && uf->uf_val) | |
620 | (*uf->uf_val)(uf->uf_index, sv); | |
621 | return 0; | |
622 | } | |
623 | ||
624 | int | |
8ac85365 | 625 | magic_setenv(SV *sv, MAGIC *mg) |
79072805 LW |
626 | { |
627 | register char *s; | |
88e89b8a | 628 | char *ptr; |
5aabfad6 | 629 | STRLEN len, klen; |
a0d0e21e | 630 | I32 i; |
1e422769 | 631 | |
a0d0e21e | 632 | s = SvPV(sv,len); |
5aabfad6 | 633 | ptr = MgPV(mg,klen); |
88e89b8a | 634 | my_setenv(ptr, s); |
1e422769 | 635 | |
a0d0e21e LW |
636 | #ifdef DYNAMIC_ENV_FETCH |
637 | /* We just undefd an environment var. Is a replacement */ | |
638 | /* waiting in the wings? */ | |
639 | if (!len) { | |
5aabfad6 | 640 | SV **valp; |
641 | if ((valp = hv_fetch(GvHVn(envgv), ptr, klen, FALSE))) | |
642 | s = SvPV(*valp, len); | |
a0d0e21e LW |
643 | } |
644 | #endif | |
1e422769 | 645 | |
39e571d4 | 646 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
647 | /* And you'll never guess what the dog had */ |
648 | /* in its mouth... */ | |
463ee0b2 | 649 | if (tainting) { |
1e422769 | 650 | MgTAINTEDDIR_off(mg); |
651 | #ifdef VMS | |
5aabfad6 | 652 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 653 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
654 | struct stat sbuf; | |
655 | int i = 0, j = 0; | |
656 | ||
657 | do { /* DCL$PATH may be a search list */ | |
658 | while (1) { /* as may dev portion of any element */ | |
659 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
660 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
661 | cando_by_name(S_IWUSR,0,elt) ) { | |
662 | MgTAINTEDDIR_on(mg); | |
663 | return 0; | |
664 | } | |
665 | } | |
666 | if ((cp = strchr(elt, ':')) != Nullch) | |
667 | *cp = '\0'; | |
668 | if (my_trnlnm(elt, eltbuf, j++)) | |
669 | elt = eltbuf; | |
670 | else | |
671 | break; | |
672 | } | |
673 | j = 0; | |
674 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
675 | } | |
676 | #endif /* VMS */ | |
5aabfad6 | 677 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 678 | char *strend = s + len; |
463ee0b2 LW |
679 | |
680 | while (s < strend) { | |
96827780 | 681 | char tmpbuf[256]; |
1e422769 | 682 | struct stat st; |
96827780 | 683 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 684 | s, strend, ':', &i); |
463ee0b2 | 685 | s++; |
96827780 MB |
686 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
687 | || *tmpbuf != '/' | |
c6ed36e1 | 688 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 689 | MgTAINTEDDIR_on(mg); |
1e422769 | 690 | return 0; |
691 | } | |
463ee0b2 | 692 | } |
79072805 LW |
693 | } |
694 | } | |
39e571d4 | 695 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 696 | |
79072805 LW |
697 | return 0; |
698 | } | |
699 | ||
700 | int | |
8ac85365 | 701 | magic_clearenv(SV *sv, MAGIC *mg) |
85e6fe83 | 702 | { |
5aabfad6 | 703 | my_setenv(MgPV(mg,na),Nullch); |
85e6fe83 LW |
704 | return 0; |
705 | } | |
706 | ||
88e89b8a | 707 | int |
8ac85365 | 708 | magic_set_all_env(SV *sv, MAGIC *mg) |
fb73857a | 709 | { |
710 | #if defined(VMS) | |
711 | die("Can't make list assignment to %%ENV on this system"); | |
712 | #else | |
d58bf5aa | 713 | dTHR; |
fb73857a | 714 | if (localizing) { |
715 | HE* entry; | |
716 | magic_clear_all_env(sv,mg); | |
717 | hv_iterinit((HV*)sv); | |
718 | while (entry = hv_iternext((HV*)sv)) { | |
719 | I32 keylen; | |
720 | my_setenv(hv_iterkey(entry, &keylen), | |
721 | SvPV(hv_iterval((HV*)sv, entry), na)); | |
722 | } | |
723 | } | |
724 | #endif | |
725 | return 0; | |
726 | } | |
727 | ||
728 | int | |
8ac85365 | 729 | magic_clear_all_env(SV *sv, MAGIC *mg) |
66b1d557 | 730 | { |
3e3baf6d TB |
731 | #if defined(VMS) |
732 | die("Can't make list assignment to %%ENV on this system"); | |
733 | #else | |
734 | #ifdef WIN32 | |
735 | char *envv = GetEnvironmentStrings(); | |
736 | char *cur = envv; | |
737 | STRLEN len; | |
738 | while (*cur) { | |
739 | char *end = strchr(cur,'='); | |
740 | if (end && end != cur) { | |
741 | *end = '\0'; | |
742 | my_setenv(cur,Nullch); | |
743 | *end = '='; | |
744 | cur += strlen(end+1)+1; | |
745 | } | |
746 | else if ((len = strlen(cur))) | |
747 | cur += len+1; | |
748 | } | |
749 | FreeEnvironmentStrings(envv); | |
66b1d557 HM |
750 | #else |
751 | I32 i; | |
752 | ||
753 | if (environ == origenviron) | |
754 | New(901, environ, 1, char*); | |
755 | else | |
756 | for (i = 0; environ[i]; i++) | |
757 | Safefree(environ[i]); | |
758 | environ[0] = Nullch; | |
759 | ||
66b1d557 | 760 | #endif |
3e3baf6d TB |
761 | #endif |
762 | return 0; | |
66b1d557 HM |
763 | } |
764 | ||
765 | int | |
8ac85365 | 766 | magic_getsig(SV *sv, MAGIC *mg) |
88e89b8a | 767 | { |
768 | I32 i; | |
769 | /* Are we fetching a signal entry? */ | |
5aabfad6 | 770 | i = whichsig(MgPV(mg,na)); |
88e89b8a | 771 | if (i) { |
772 | if(psig_ptr[i]) | |
773 | sv_setsv(sv,psig_ptr[i]); | |
774 | else { | |
ff68c719 | 775 | Sighandler_t sigstate = rsignal_state(i); |
776 | ||
88e89b8a | 777 | /* cache state so we don't fetch it again */ |
ff68c719 | 778 | if(sigstate == SIG_IGN) |
88e89b8a | 779 | sv_setpv(sv,"IGNORE"); |
780 | else | |
781 | sv_setsv(sv,&sv_undef); | |
782 | psig_ptr[i] = SvREFCNT_inc(sv); | |
783 | SvTEMP_off(sv); | |
784 | } | |
785 | } | |
786 | return 0; | |
787 | } | |
788 | int | |
8ac85365 | 789 | magic_clearsig(SV *sv, MAGIC *mg) |
88e89b8a | 790 | { |
791 | I32 i; | |
792 | /* Are we clearing a signal entry? */ | |
5aabfad6 | 793 | i = whichsig(MgPV(mg,na)); |
88e89b8a | 794 | if (i) { |
795 | if(psig_ptr[i]) { | |
796 | SvREFCNT_dec(psig_ptr[i]); | |
797 | psig_ptr[i]=0; | |
798 | } | |
799 | if(psig_name[i]) { | |
800 | SvREFCNT_dec(psig_name[i]); | |
801 | psig_name[i]=0; | |
802 | } | |
803 | } | |
804 | return 0; | |
805 | } | |
3d37d572 | 806 | |
85e6fe83 | 807 | int |
8ac85365 | 808 | magic_setsig(SV *sv, MAGIC *mg) |
79072805 | 809 | { |
11343788 | 810 | dTHR; |
79072805 LW |
811 | register char *s; |
812 | I32 i; | |
748a9306 | 813 | SV** svp; |
a0d0e21e | 814 | |
5aabfad6 | 815 | s = MgPV(mg,na); |
748a9306 LW |
816 | if (*s == '_') { |
817 | if (strEQ(s,"__DIE__")) | |
818 | svp = &diehook; | |
819 | else if (strEQ(s,"__WARN__")) | |
820 | svp = &warnhook; | |
821 | else if (strEQ(s,"__PARSE__")) | |
822 | svp = &parsehook; | |
823 | else | |
824 | croak("No such hook: %s", s); | |
825 | i = 0; | |
4633a7c4 LW |
826 | if (*svp) { |
827 | SvREFCNT_dec(*svp); | |
828 | *svp = 0; | |
829 | } | |
748a9306 LW |
830 | } |
831 | else { | |
832 | i = whichsig(s); /* ...no, a brick */ | |
833 | if (!i) { | |
834 | if (dowarn || strEQ(s,"ALARM")) | |
835 | warn("No such signal: SIG%s", s); | |
836 | return 0; | |
837 | } | |
ff0cee69 | 838 | SvREFCNT_dec(psig_name[i]); |
839 | SvREFCNT_dec(psig_ptr[i]); | |
88e89b8a | 840 | psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 841 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
ff0cee69 | 842 | psig_name[i] = newSVpv(s, strlen(s)); |
88e89b8a | 843 | SvREADONLY_on(psig_name[i]); |
748a9306 | 844 | } |
a0d0e21e | 845 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 846 | if (i) |
c23142e2 | 847 | (void)rsignal(i, sighandlerp); |
748a9306 LW |
848 | else |
849 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
850 | return 0; |
851 | } | |
852 | s = SvPV_force(sv,na); | |
748a9306 LW |
853 | if (strEQ(s,"IGNORE")) { |
854 | if (i) | |
ff68c719 | 855 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
856 | else |
857 | *svp = 0; | |
858 | } | |
859 | else if (strEQ(s,"DEFAULT") || !*s) { | |
860 | if (i) | |
ff68c719 | 861 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
862 | else |
863 | *svp = 0; | |
864 | } | |
79072805 | 865 | else { |
5aabfad6 | 866 | /* |
867 | * We should warn if HINT_STRICT_REFS, but without | |
868 | * access to a known hint bit in a known OP, we can't | |
869 | * tell whether HINT_STRICT_REFS is in force or not. | |
870 | */ | |
46fc3d4c | 871 | if (!strchr(s,':') && !strchr(s,'\'')) |
872 | sv_setpv(sv, form("main::%s", s)); | |
748a9306 | 873 | if (i) |
c23142e2 | 874 | (void)rsignal(i, sighandlerp); |
748a9306 LW |
875 | else |
876 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
877 | } |
878 | return 0; | |
879 | } | |
880 | ||
881 | int | |
8ac85365 | 882 | magic_setisa(SV *sv, MAGIC *mg) |
79072805 | 883 | { |
a0231f0e MB |
884 | HV *stash; |
885 | SV **svp; | |
886 | I32 fill; | |
887 | HV *basefields = Nullhv; | |
888 | GV **gvp; | |
889 | GV *gv; | |
890 | HE *he; | |
891 | static char *FIELDS = "FIELDS"; | |
892 | ||
463ee0b2 | 893 | sub_generation++; |
a0231f0e MB |
894 | |
895 | if (mg->mg_type == 'i') | |
896 | return 0; /* Ignore lower-case version of the magic */ | |
897 | ||
898 | stash = GvSTASH(mg->mg_obj); | |
899 | svp = AvARRAY((AV*)sv); | |
93965878 NIS |
900 | |
901 | /* NOTE: No support for tied ISA */ | |
902 | for (fill = AvFILLp((AV*)sv); fill >= 0; fill--, svp++) { | |
a0231f0e MB |
903 | HV *basestash = gv_stashsv(*svp, FALSE); |
904 | ||
905 | if (!basestash) { | |
906 | if (dowarn) | |
907 | warn("No such package \"%_\" in @ISA assignment", *svp); | |
908 | continue; | |
909 | } | |
910 | gvp = (GV**)hv_fetch(basestash, FIELDS, 6, FALSE); | |
911 | if (gvp && *gvp && GvHV(*gvp)) { | |
912 | if (basefields) | |
913 | croak("Can't multiply inherit %%FIELDS"); | |
914 | basefields = GvHV(*gvp); | |
915 | } | |
916 | } | |
917 | ||
918 | if (!basefields) | |
919 | return 0; | |
920 | ||
921 | gv = (GV*)*hv_fetch(stash, FIELDS, 6, TRUE); | |
922 | if (!isGV(gv)) | |
923 | gv_init(gv, stash, FIELDS, 6, TRUE); | |
924 | if (!GvHV(gv)) | |
925 | GvHV(gv) = newHV(); | |
926 | if (HvKEYS(GvHV(gv))) | |
927 | croak("Inherited %%FIELDS can't override existing %%FIELDS"); | |
928 | ||
929 | hv_iterinit(GvHV(gv)); | |
930 | while ((he = hv_iternext(basefields))) | |
931 | hv_store(GvHV(gv), HeKEY(he), HeKLEN(he), HeVAL(he), HeHASH(he)); | |
932 | ||
463ee0b2 LW |
933 | return 0; |
934 | } | |
935 | ||
a0d0e21e LW |
936 | #ifdef OVERLOAD |
937 | ||
463ee0b2 | 938 | int |
8ac85365 | 939 | magic_setamagic(SV *sv, MAGIC *mg) |
463ee0b2 | 940 | { |
a0d0e21e LW |
941 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
942 | amagic_generation++; | |
463ee0b2 | 943 | |
a0d0e21e LW |
944 | return 0; |
945 | } | |
946 | #endif /* OVERLOAD */ | |
463ee0b2 | 947 | |
946ec16e | 948 | int |
8ac85365 | 949 | magic_setnkeys(SV *sv, MAGIC *mg) |
946ec16e | 950 | { |
951 | if (LvTARG(sv)) { | |
952 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
953 | LvTARG(sv) = Nullsv; /* Don't allow a ref to reassign this. */ | |
954 | } | |
955 | return 0; | |
93965878 | 956 | } |
946ec16e | 957 | |
e336de0d | 958 | /* caller is responsible for stack switching/cleanup */ |
a0d0e21e | 959 | static int |
93965878 | 960 | magic_methcall(MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
961 | { |
962 | dSP; | |
463ee0b2 | 963 | |
924508f0 GS |
964 | PUSHMARK(SP); |
965 | EXTEND(SP, n); | |
a0d0e21e | 966 | PUSHs(mg->mg_obj); |
93965878 NIS |
967 | if (n > 1) { |
968 | if (mg->mg_ptr) { | |
969 | if (mg->mg_len >= 0) | |
970 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
971 | else if (mg->mg_len == HEf_SVKEY) | |
972 | PUSHs((SV*)mg->mg_ptr); | |
973 | } | |
974 | else if (mg->mg_type == 'p') { | |
975 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
976 | } | |
977 | } | |
978 | if (n > 2) { | |
979 | PUSHs(val); | |
88e89b8a | 980 | } |
463ee0b2 LW |
981 | PUTBACK; |
982 | ||
93965878 NIS |
983 | return perl_call_method(meth, flags); |
984 | } | |
985 | ||
986 | static int | |
987 | magic_methpack(SV *sv, MAGIC *mg, char *meth) | |
988 | { | |
989 | dSP; | |
990 | ||
991 | ENTER; | |
992 | SAVETMPS; | |
e336de0d | 993 | PUSHSTACK(SI_MAGIC); |
93965878 NIS |
994 | |
995 | if (magic_methcall(mg, meth, G_SCALAR, 2, NULL)) { | |
a0d0e21e | 996 | sv_setsv(sv, *stack_sp--); |
93965878 | 997 | } |
463ee0b2 | 998 | |
e336de0d | 999 | POPSTACK(); |
a0d0e21e LW |
1000 | FREETMPS; |
1001 | LEAVE; | |
1002 | return 0; | |
1003 | } | |
463ee0b2 | 1004 | |
a0d0e21e | 1005 | int |
8ac85365 | 1006 | magic_getpack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1007 | { |
1008 | magic_methpack(sv,mg,"FETCH"); | |
1009 | if (mg->mg_ptr) | |
1010 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1011 | return 0; |
1012 | } | |
1013 | ||
1014 | int | |
8ac85365 | 1015 | magic_setpack(SV *sv, MAGIC *mg) |
e336de0d GS |
1016 | { |
1017 | dSP; | |
a60c0954 | 1018 | ENTER; |
e336de0d | 1019 | PUSHSTACK(SI_MAGIC); |
93965878 | 1020 | magic_methcall(mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
e336de0d | 1021 | POPSTACK(); |
a60c0954 | 1022 | LEAVE; |
463ee0b2 LW |
1023 | return 0; |
1024 | } | |
1025 | ||
1026 | int | |
8ac85365 | 1027 | magic_clearpack(SV *sv, MAGIC *mg) |
463ee0b2 | 1028 | { |
a0d0e21e LW |
1029 | return magic_methpack(sv,mg,"DELETE"); |
1030 | } | |
463ee0b2 | 1031 | |
93965878 NIS |
1032 | |
1033 | U32 | |
1034 | magic_sizepack(SV *sv, MAGIC *mg) | |
1035 | { | |
e336de0d | 1036 | dSP; |
93965878 NIS |
1037 | U32 retval = 0; |
1038 | ||
1039 | ENTER; | |
1040 | SAVETMPS; | |
e336de0d | 1041 | PUSHSTACK(SI_MAGIC); |
93965878 NIS |
1042 | if (magic_methcall(mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
1043 | sv = *stack_sp--; | |
a60c0954 | 1044 | retval = (U32) SvIV(sv)-1; |
93965878 | 1045 | } |
e336de0d | 1046 | POPSTACK(); |
93965878 NIS |
1047 | FREETMPS; |
1048 | LEAVE; | |
1049 | return retval; | |
1050 | } | |
1051 | ||
8ac85365 | 1052 | int magic_wipepack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1053 | { |
1054 | dSP; | |
463ee0b2 | 1055 | |
e336de0d GS |
1056 | ENTER; |
1057 | PUSHSTACK(SI_MAGIC); | |
924508f0 | 1058 | PUSHMARK(SP); |
a0d0e21e | 1059 | XPUSHs(mg->mg_obj); |
463ee0b2 | 1060 | PUTBACK; |
a0d0e21e | 1061 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
e336de0d | 1062 | POPSTACK(); |
a60c0954 | 1063 | LEAVE; |
463ee0b2 LW |
1064 | return 0; |
1065 | } | |
1066 | ||
1067 | int | |
8ac85365 | 1068 | magic_nextpack(SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1069 | { |
463ee0b2 | 1070 | dSP; |
a0d0e21e | 1071 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1072 | |
1073 | ENTER; | |
a0d0e21e | 1074 | SAVETMPS; |
e336de0d | 1075 | PUSHSTACK(SI_MAGIC); |
924508f0 GS |
1076 | PUSHMARK(SP); |
1077 | EXTEND(SP, 2); | |
a0d0e21e | 1078 | PUSHs(mg->mg_obj); |
463ee0b2 LW |
1079 | if (SvOK(key)) |
1080 | PUSHs(key); | |
1081 | PUTBACK; | |
1082 | ||
a0d0e21e LW |
1083 | if (perl_call_method(meth, G_SCALAR)) |
1084 | sv_setsv(key, *stack_sp--); | |
463ee0b2 | 1085 | |
e336de0d | 1086 | POPSTACK(); |
a0d0e21e LW |
1087 | FREETMPS; |
1088 | LEAVE; | |
79072805 LW |
1089 | return 0; |
1090 | } | |
1091 | ||
1092 | int | |
8ac85365 | 1093 | magic_existspack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1094 | { |
1095 | return magic_methpack(sv,mg,"EXISTS"); | |
1096 | } | |
1097 | ||
1098 | int | |
8ac85365 | 1099 | magic_setdbline(SV *sv, MAGIC *mg) |
79072805 | 1100 | { |
11343788 | 1101 | dTHR; |
79072805 LW |
1102 | OP *o; |
1103 | I32 i; | |
1104 | GV* gv; | |
1105 | SV** svp; | |
1106 | ||
1107 | gv = DBline; | |
1108 | i = SvTRUE(sv); | |
188ea221 | 1109 | svp = av_fetch(GvAV(gv), |
5aabfad6 | 1110 | atoi(MgPV(mg,na)), FALSE); |
8990e307 | 1111 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 1112 | o->op_private = i; |
79072805 LW |
1113 | else |
1114 | warn("Can't break at that line\n"); | |
1115 | return 0; | |
1116 | } | |
1117 | ||
1118 | int | |
8ac85365 | 1119 | magic_getarylen(SV *sv, MAGIC *mg) |
79072805 | 1120 | { |
0f15f207 | 1121 | dTHR; |
a0d0e21e | 1122 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 LW |
1123 | return 0; |
1124 | } | |
1125 | ||
1126 | int | |
8ac85365 | 1127 | magic_setarylen(SV *sv, MAGIC *mg) |
79072805 | 1128 | { |
0f15f207 | 1129 | dTHR; |
a0d0e21e LW |
1130 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
1131 | return 0; | |
1132 | } | |
1133 | ||
1134 | int | |
8ac85365 | 1135 | magic_getpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1136 | { |
1137 | SV* lsv = LvTARG(sv); | |
1138 | ||
1139 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1140 | mg = mg_find(lsv, 'g'); | |
1141 | if (mg && mg->mg_len >= 0) { | |
0f15f207 | 1142 | dTHR; |
a0d0e21e LW |
1143 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); |
1144 | return 0; | |
1145 | } | |
1146 | } | |
1147 | (void)SvOK_off(sv); | |
1148 | return 0; | |
1149 | } | |
1150 | ||
1151 | int | |
8ac85365 | 1152 | magic_setpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1153 | { |
1154 | SV* lsv = LvTARG(sv); | |
1155 | SSize_t pos; | |
1156 | STRLEN len; | |
1157 | ||
1158 | mg = 0; | |
1159 | ||
1160 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1161 | mg = mg_find(lsv, 'g'); | |
1162 | if (!mg) { | |
1163 | if (!SvOK(sv)) | |
1164 | return 0; | |
1165 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1166 | mg = mg_find(lsv, 'g'); | |
1167 | } | |
1168 | else if (!SvOK(sv)) { | |
1169 | mg->mg_len = -1; | |
1170 | return 0; | |
1171 | } | |
1172 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1173 | ||
0f15f207 | 1174 | WITH_THR(pos = SvIV(sv) - curcop->cop_arybase); |
a0d0e21e LW |
1175 | if (pos < 0) { |
1176 | pos += len; | |
1177 | if (pos < 0) | |
1178 | pos = 0; | |
1179 | } | |
1180 | else if (pos > len) | |
1181 | pos = len; | |
1182 | mg->mg_len = pos; | |
71be2cbc | 1183 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1184 | |
79072805 LW |
1185 | return 0; |
1186 | } | |
1187 | ||
1188 | int | |
8ac85365 | 1189 | magic_getglob(SV *sv, MAGIC *mg) |
79072805 | 1190 | { |
8646b087 | 1191 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1192 | SvFAKE_off(sv); | |
946ec16e | 1193 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1194 | SvFAKE_on(sv); |
1195 | } | |
1196 | else | |
946ec16e | 1197 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1198 | return 0; |
1199 | } | |
1200 | ||
1201 | int | |
8ac85365 | 1202 | magic_setglob(SV *sv, MAGIC *mg) |
79072805 LW |
1203 | { |
1204 | register char *s; | |
1205 | GV* gv; | |
1206 | ||
1207 | if (!SvOK(sv)) | |
1208 | return 0; | |
463ee0b2 | 1209 | s = SvPV(sv, na); |
79072805 LW |
1210 | if (*s == '*' && s[1]) |
1211 | s++; | |
85e6fe83 | 1212 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1213 | if (sv == (SV*)gv) |
1214 | return 0; | |
1215 | if (GvGP(sv)) | |
88e89b8a | 1216 | gp_free((GV*)sv); |
79072805 | 1217 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1218 | return 0; |
1219 | } | |
1220 | ||
1221 | int | |
8ac85365 | 1222 | magic_setsubstr(SV *sv, MAGIC *mg) |
79072805 | 1223 | { |
8990e307 LW |
1224 | STRLEN len; |
1225 | char *tmps = SvPV(sv,len); | |
1226 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1227 | return 0; |
1228 | } | |
1229 | ||
1230 | int | |
8ac85365 | 1231 | magic_gettaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1232 | { |
a863c7d1 | 1233 | dTHR; |
bbce6d69 | 1234 | TAINT_IF((mg->mg_len & 1) || |
1235 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1236 | return 0; |
1237 | } | |
1238 | ||
1239 | int | |
8ac85365 | 1240 | magic_settaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1241 | { |
11343788 | 1242 | dTHR; |
748a9306 LW |
1243 | if (localizing) { |
1244 | if (localizing == 1) | |
1245 | mg->mg_len <<= 1; | |
1246 | else | |
1247 | mg->mg_len >>= 1; | |
a0d0e21e | 1248 | } |
748a9306 LW |
1249 | else if (tainted) |
1250 | mg->mg_len |= 1; | |
1251 | else | |
1252 | mg->mg_len &= ~1; | |
463ee0b2 LW |
1253 | return 0; |
1254 | } | |
1255 | ||
1256 | int | |
8ac85365 | 1257 | magic_setvec(SV *sv, MAGIC *mg) |
79072805 LW |
1258 | { |
1259 | do_vecset(sv); /* XXX slurp this routine */ | |
1260 | return 0; | |
1261 | } | |
1262 | ||
1263 | int | |
8ac85365 | 1264 | magic_getdefelem(SV *sv, MAGIC *mg) |
5f05dabc | 1265 | { |
71be2cbc | 1266 | SV *targ = Nullsv; |
5f05dabc | 1267 | if (LvTARGLEN(sv)) { |
68dc0745 | 1268 | if (mg->mg_obj) { |
1269 | HV* hv = (HV*)LvTARG(sv); | |
1270 | HE* he = hv_fetch_ent(hv, mg->mg_obj, FALSE, 0); | |
1271 | if (he) | |
1272 | targ = HeVAL(he); | |
1273 | } | |
1274 | else { | |
93965878 | 1275 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1276 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1277 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1278 | } | |
1279 | if (targ && targ != &sv_undef) { | |
e858de61 | 1280 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 | 1281 | /* somebody else defined it for us */ |
1282 | SvREFCNT_dec(LvTARG(sv)); | |
1283 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1284 | LvTARGLEN(sv) = 0; | |
1285 | SvREFCNT_dec(mg->mg_obj); | |
1286 | mg->mg_obj = Nullsv; | |
1287 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1288 | } | |
5f05dabc | 1289 | } |
71be2cbc | 1290 | else |
1291 | targ = LvTARG(sv); | |
1292 | sv_setsv(sv, targ ? targ : &sv_undef); | |
1293 | return 0; | |
1294 | } | |
1295 | ||
1296 | int | |
8ac85365 | 1297 | magic_setdefelem(SV *sv, MAGIC *mg) |
71be2cbc | 1298 | { |
1299 | if (LvTARGLEN(sv)) | |
68dc0745 | 1300 | vivify_defelem(sv); |
1301 | if (LvTARG(sv)) { | |
5f05dabc | 1302 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1303 | SvSETMAGIC(LvTARG(sv)); |
1304 | } | |
5f05dabc | 1305 | return 0; |
1306 | } | |
1307 | ||
1308 | int | |
8ac85365 | 1309 | magic_freedefelem(SV *sv, MAGIC *mg) |
5f05dabc | 1310 | { |
1311 | SvREFCNT_dec(LvTARG(sv)); | |
71be2cbc | 1312 | return 0; |
1313 | } | |
1314 | ||
1315 | void | |
8ac85365 | 1316 | vivify_defelem(SV *sv) |
71be2cbc | 1317 | { |
e858de61 | 1318 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
68dc0745 | 1319 | MAGIC* mg; |
1320 | SV* value; | |
71be2cbc | 1321 | |
68dc0745 | 1322 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1323 | return; |
68dc0745 | 1324 | if (mg->mg_obj) { |
1325 | HV* hv = (HV*)LvTARG(sv); | |
1326 | HE* he = hv_fetch_ent(hv, mg->mg_obj, TRUE, 0); | |
1327 | if (!he || (value = HeVAL(he)) == &sv_undef) | |
1328 | croak(no_helem, SvPV(mg->mg_obj, na)); | |
71be2cbc | 1329 | } |
68dc0745 | 1330 | else { |
1331 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1332 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1333 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1334 | else { | |
1335 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
1336 | if (!svp || (value = *svp) == &sv_undef) | |
1337 | croak(no_aelem, (I32)LvTARGOFF(sv)); | |
1338 | } | |
1339 | } | |
3e3baf6d | 1340 | (void)SvREFCNT_inc(value); |
68dc0745 | 1341 | SvREFCNT_dec(LvTARG(sv)); |
1342 | LvTARG(sv) = value; | |
71be2cbc | 1343 | LvTARGLEN(sv) = 0; |
68dc0745 | 1344 | SvREFCNT_dec(mg->mg_obj); |
1345 | mg->mg_obj = Nullsv; | |
1346 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1347 | } |
1348 | ||
1349 | int | |
8ac85365 | 1350 | magic_setmglob(SV *sv, MAGIC *mg) |
93a17b20 | 1351 | { |
a0d0e21e | 1352 | mg->mg_len = -1; |
c6496cc7 | 1353 | SvSCREAM_off(sv); |
93a17b20 LW |
1354 | return 0; |
1355 | } | |
1356 | ||
1357 | int | |
8ac85365 | 1358 | magic_setbm(SV *sv, MAGIC *mg) |
79072805 | 1359 | { |
463ee0b2 | 1360 | sv_unmagic(sv, 'B'); |
79072805 LW |
1361 | SvVALID_off(sv); |
1362 | return 0; | |
1363 | } | |
1364 | ||
1365 | int | |
8ac85365 | 1366 | magic_setfm(SV *sv, MAGIC *mg) |
55497cff | 1367 | { |
1368 | sv_unmagic(sv, 'f'); | |
1369 | SvCOMPILED_off(sv); | |
1370 | return 0; | |
1371 | } | |
1372 | ||
1373 | int | |
8ac85365 | 1374 | magic_setuvar(SV *sv, MAGIC *mg) |
79072805 LW |
1375 | { |
1376 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1377 | ||
1378 | if (uf && uf->uf_set) | |
1379 | (*uf->uf_set)(uf->uf_index, sv); | |
1380 | return 0; | |
1381 | } | |
1382 | ||
c277df42 IZ |
1383 | int |
1384 | magic_freeregexp(SV *sv, MAGIC *mg) | |
1385 | { | |
1386 | regexp *re = (regexp *)mg->mg_obj; | |
1387 | ReREFCNT_dec(re); | |
1388 | return 0; | |
1389 | } | |
1390 | ||
7a4c00b4 | 1391 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1392 | int |
8ac85365 | 1393 | magic_setcollxfrm(SV *sv, MAGIC *mg) |
bbce6d69 | 1394 | { |
1395 | /* | |
1396 | * René Descartes said "I think not." | |
1397 | * and vanished with a faint plop. | |
1398 | */ | |
7a4c00b4 | 1399 | if (mg->mg_ptr) { |
1400 | Safefree(mg->mg_ptr); | |
1401 | mg->mg_ptr = NULL; | |
1402 | mg->mg_len = -1; | |
1403 | } | |
bbce6d69 | 1404 | return 0; |
1405 | } | |
7a4c00b4 | 1406 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1407 | |
1408 | int | |
8ac85365 | 1409 | magic_set(SV *sv, MAGIC *mg) |
79072805 | 1410 | { |
11343788 | 1411 | dTHR; |
79072805 LW |
1412 | register char *s; |
1413 | I32 i; | |
8990e307 | 1414 | STRLEN len; |
79072805 | 1415 | switch (*mg->mg_ptr) { |
748a9306 LW |
1416 | case '\001': /* ^A */ |
1417 | sv_setsv(bodytarget, sv); | |
1418 | break; | |
79072805 | 1419 | case '\004': /* ^D */ |
8990e307 | 1420 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1421 | DEBUG_x(dump_all()); |
1422 | break; | |
28f23441 | 1423 | case '\005': /* ^E */ |
1424 | #ifdef VMS | |
1425 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1426 | #else | |
22fae026 TM |
1427 | #ifdef WIN32 |
1428 | SetLastError( SvIV(sv) ); | |
1429 | #else | |
f86702cc | 1430 | /* will anyone ever use this? */ |
1431 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
28f23441 | 1432 | #endif |
22fae026 | 1433 | #endif |
28f23441 | 1434 | break; |
79072805 | 1435 | case '\006': /* ^F */ |
463ee0b2 | 1436 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1437 | break; |
a0d0e21e LW |
1438 | case '\010': /* ^H */ |
1439 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1440 | break; | |
79072805 LW |
1441 | case '\t': /* ^I */ |
1442 | if (inplace) | |
1443 | Safefree(inplace); | |
1444 | if (SvOK(sv)) | |
a0d0e21e | 1445 | inplace = savepv(SvPV(sv,na)); |
79072805 LW |
1446 | else |
1447 | inplace = Nullch; | |
1448 | break; | |
28f23441 | 1449 | case '\017': /* ^O */ |
1450 | if (osname) | |
1451 | Safefree(osname); | |
1452 | if (SvOK(sv)) | |
1453 | osname = savepv(SvPV(sv,na)); | |
1454 | else | |
1455 | osname = Nullch; | |
1456 | break; | |
79072805 | 1457 | case '\020': /* ^P */ |
84902520 | 1458 | perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1459 | break; |
1460 | case '\024': /* ^T */ | |
88e89b8a | 1461 | #ifdef BIG_TIME |
1462 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); | |
1463 | #else | |
85e6fe83 | 1464 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1465 | #endif |
79072805 LW |
1466 | break; |
1467 | case '\027': /* ^W */ | |
463ee0b2 | 1468 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1469 | break; |
1470 | case '.': | |
748a9306 LW |
1471 | if (localizing) { |
1472 | if (localizing == 1) | |
1473 | save_sptr((SV**)&last_in_gv); | |
1474 | } | |
88e89b8a | 1475 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e | 1476 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 LW |
1477 | break; |
1478 | case '^': | |
a0d0e21e LW |
1479 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1480 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1481 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1482 | break; |
1483 | case '~': | |
a0d0e21e LW |
1484 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1485 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1486 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1487 | break; |
1488 | case '=': | |
a0d0e21e | 1489 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1490 | break; |
1491 | case '-': | |
a0d0e21e LW |
1492 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1493 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) | |
1494 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; | |
79072805 LW |
1495 | break; |
1496 | case '%': | |
a0d0e21e | 1497 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1498 | break; |
1499 | case '|': | |
4b65379b CS |
1500 | { |
1501 | IO *io = GvIOp(defoutgv); | |
1502 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) | |
1503 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1504 | else { | |
1505 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1506 | PerlIO *ofp = IoOFP(io); | |
1507 | if (ofp) | |
1508 | (void)PerlIO_flush(ofp); | |
1509 | IoFLAGS(io) |= IOf_FLUSH; | |
1510 | } | |
1511 | } | |
79072805 LW |
1512 | } |
1513 | break; | |
1514 | case '*': | |
463ee0b2 | 1515 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1516 | multiline = (i != 0); |
1517 | break; | |
1518 | case '/': | |
c07a80fd | 1519 | SvREFCNT_dec(nrs); |
1520 | nrs = newSVsv(sv); | |
1521 | SvREFCNT_dec(rs); | |
1522 | rs = SvREFCNT_inc(nrs); | |
79072805 LW |
1523 | break; |
1524 | case '\\': | |
1525 | if (ors) | |
1526 | Safefree(ors); | |
e3c19b7b CS |
1527 | if (SvOK(sv) || SvGMAGICAL(sv)) |
1528 | ors = savepv(SvPV(sv,orslen)); | |
1529 | else { | |
1530 | ors = Nullch; | |
1531 | orslen = 0; | |
1532 | } | |
79072805 LW |
1533 | break; |
1534 | case ',': | |
1535 | if (ofs) | |
1536 | Safefree(ofs); | |
a0d0e21e | 1537 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 LW |
1538 | break; |
1539 | case '#': | |
1540 | if (ofmt) | |
1541 | Safefree(ofmt); | |
a0d0e21e | 1542 | ofmt = savepv(SvPV(sv,na)); |
79072805 LW |
1543 | break; |
1544 | case '[': | |
a0d0e21e | 1545 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1546 | break; |
1547 | case '?': | |
ff0cee69 | 1548 | #ifdef COMPLEX_STATUS |
1549 | if (localizing == 2) { | |
1550 | statusvalue = LvTARGOFF(sv); | |
1551 | statusvalue_vms = LvTARGLEN(sv); | |
1552 | } | |
1553 | else | |
1554 | #endif | |
1555 | #ifdef VMSISH_STATUS | |
1556 | if (VMSISH_STATUS) | |
1557 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1558 | else | |
1559 | #endif | |
1560 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1561 | break; |
1562 | case '!': | |
78987ded | 1563 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1564 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1565 | break; |
1566 | case '<': | |
463ee0b2 | 1567 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1568 | if (delaymagic) { |
1569 | delaymagic |= DM_RUID; | |
1570 | break; /* don't do magic till later */ | |
1571 | } | |
1572 | #ifdef HAS_SETRUID | |
85e6fe83 | 1573 | (void)setruid((Uid_t)uid); |
79072805 LW |
1574 | #else |
1575 | #ifdef HAS_SETREUID | |
85e6fe83 | 1576 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 | 1577 | #else |
85e6fe83 LW |
1578 | #ifdef HAS_SETRESUID |
1579 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); | |
79072805 LW |
1580 | #else |
1581 | if (uid == euid) /* special case $< = $> */ | |
1582 | (void)setuid(uid); | |
a0d0e21e LW |
1583 | else { |
1584 | uid = (I32)getuid(); | |
463ee0b2 | 1585 | croak("setruid() not implemented"); |
a0d0e21e | 1586 | } |
79072805 LW |
1587 | #endif |
1588 | #endif | |
85e6fe83 | 1589 | #endif |
748a9306 | 1590 | uid = (I32)getuid(); |
4633a7c4 | 1591 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1592 | break; |
1593 | case '>': | |
463ee0b2 | 1594 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1595 | if (delaymagic) { |
1596 | delaymagic |= DM_EUID; | |
1597 | break; /* don't do magic till later */ | |
1598 | } | |
1599 | #ifdef HAS_SETEUID | |
85e6fe83 | 1600 | (void)seteuid((Uid_t)euid); |
79072805 LW |
1601 | #else |
1602 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1603 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1604 | #else | |
1605 | #ifdef HAS_SETRESUID | |
1606 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); | |
79072805 LW |
1607 | #else |
1608 | if (euid == uid) /* special case $> = $< */ | |
1609 | setuid(euid); | |
a0d0e21e LW |
1610 | else { |
1611 | euid = (I32)geteuid(); | |
463ee0b2 | 1612 | croak("seteuid() not implemented"); |
a0d0e21e | 1613 | } |
79072805 LW |
1614 | #endif |
1615 | #endif | |
85e6fe83 | 1616 | #endif |
79072805 | 1617 | euid = (I32)geteuid(); |
4633a7c4 | 1618 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1619 | break; |
1620 | case '(': | |
463ee0b2 | 1621 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1622 | if (delaymagic) { |
1623 | delaymagic |= DM_RGID; | |
1624 | break; /* don't do magic till later */ | |
1625 | } | |
1626 | #ifdef HAS_SETRGID | |
85e6fe83 | 1627 | (void)setrgid((Gid_t)gid); |
79072805 LW |
1628 | #else |
1629 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1630 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1631 | #else | |
1632 | #ifdef HAS_SETRESGID | |
1633 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); | |
79072805 LW |
1634 | #else |
1635 | if (gid == egid) /* special case $( = $) */ | |
1636 | (void)setgid(gid); | |
748a9306 LW |
1637 | else { |
1638 | gid = (I32)getgid(); | |
463ee0b2 | 1639 | croak("setrgid() not implemented"); |
748a9306 | 1640 | } |
79072805 LW |
1641 | #endif |
1642 | #endif | |
85e6fe83 | 1643 | #endif |
79072805 | 1644 | gid = (I32)getgid(); |
4633a7c4 | 1645 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1646 | break; |
1647 | case ')': | |
5cd24f17 | 1648 | #ifdef HAS_SETGROUPS |
1649 | { | |
1650 | char *p = SvPV(sv, na); | |
1651 | Groups_t gary[NGROUPS]; | |
1652 | ||
1653 | SET_NUMERIC_STANDARD(); | |
1654 | while (isSPACE(*p)) | |
1655 | ++p; | |
1656 | egid = I_V(atof(p)); | |
1657 | for (i = 0; i < NGROUPS; ++i) { | |
1658 | while (*p && !isSPACE(*p)) | |
1659 | ++p; | |
1660 | while (isSPACE(*p)) | |
1661 | ++p; | |
1662 | if (!*p) | |
1663 | break; | |
1664 | gary[i] = I_V(atof(p)); | |
1665 | } | |
8cc95fdb | 1666 | if (i) |
1667 | (void)setgroups(i, gary); | |
5cd24f17 | 1668 | } |
1669 | #else /* HAS_SETGROUPS */ | |
463ee0b2 | 1670 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1671 | #endif /* HAS_SETGROUPS */ |
79072805 LW |
1672 | if (delaymagic) { |
1673 | delaymagic |= DM_EGID; | |
1674 | break; /* don't do magic till later */ | |
1675 | } | |
1676 | #ifdef HAS_SETEGID | |
85e6fe83 | 1677 | (void)setegid((Gid_t)egid); |
79072805 LW |
1678 | #else |
1679 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1680 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1681 | #else | |
1682 | #ifdef HAS_SETRESGID | |
1683 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); | |
79072805 LW |
1684 | #else |
1685 | if (egid == gid) /* special case $) = $( */ | |
1686 | (void)setgid(egid); | |
748a9306 LW |
1687 | else { |
1688 | egid = (I32)getegid(); | |
463ee0b2 | 1689 | croak("setegid() not implemented"); |
748a9306 | 1690 | } |
79072805 LW |
1691 | #endif |
1692 | #endif | |
85e6fe83 | 1693 | #endif |
79072805 | 1694 | egid = (I32)getegid(); |
4633a7c4 | 1695 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1696 | break; |
1697 | case ':': | |
a0d0e21e | 1698 | chopset = SvPV_force(sv,na); |
79072805 LW |
1699 | break; |
1700 | case '0': | |
1701 | if (!origalen) { | |
1702 | s = origargv[0]; | |
1703 | s += strlen(s); | |
1704 | /* See if all the arguments are contiguous in memory */ | |
1705 | for (i = 1; i < origargc; i++) { | |
fb73857a | 1706 | if (origargv[i] == s + 1 |
1707 | #ifdef OS2 | |
1708 | || origargv[i] == s + 2 | |
1709 | #endif | |
1710 | ) | |
79072805 | 1711 | s += strlen(++s); /* this one is ok too */ |
fb73857a | 1712 | else |
1713 | break; | |
79072805 | 1714 | } |
bbce6d69 | 1715 | /* can grab env area too? */ |
fb73857a | 1716 | if (origenviron && (origenviron[0] == s + 1 |
1717 | #ifdef OS2 | |
1718 | || (origenviron[0] == s + 9 && (s += 8)) | |
1719 | #endif | |
1720 | )) { | |
66b1d557 | 1721 | my_setenv("NoNe SuCh", Nullch); |
79072805 LW |
1722 | /* force copy of environment */ |
1723 | for (i = 0; origenviron[i]; i++) | |
1724 | if (origenviron[i] == s + 1) | |
1725 | s += strlen(++s); | |
fb73857a | 1726 | else |
1727 | break; | |
79072805 LW |
1728 | } |
1729 | origalen = s - origargv[0]; | |
1730 | } | |
a0d0e21e | 1731 | s = SvPV_force(sv,len); |
8990e307 | 1732 | i = len; |
79072805 LW |
1733 | if (i >= origalen) { |
1734 | i = origalen; | |
fb73857a | 1735 | /* don't allow system to limit $0 seen by script */ |
1736 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
79072805 | 1737 | Copy(s, origargv[0], i, char); |
fb73857a | 1738 | s = origargv[0]+i; |
1739 | *s = '\0'; | |
79072805 LW |
1740 | } |
1741 | else { | |
1742 | Copy(s, origargv[0], i, char); | |
1743 | s = origargv[0]+i; | |
1744 | *s++ = '\0'; | |
1745 | while (++i < origalen) | |
8990e307 LW |
1746 | *s++ = ' '; |
1747 | s = origargv[0]+i; | |
ed6116ce | 1748 | for (i = 1; i < origargc; i++) |
8990e307 | 1749 | origargv[i] = Nullch; |
79072805 LW |
1750 | } |
1751 | break; | |
a863c7d1 MB |
1752 | #ifdef USE_THREADS |
1753 | case '@': | |
38a03e6e | 1754 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
1755 | break; |
1756 | #endif /* USE_THREADS */ | |
79072805 LW |
1757 | } |
1758 | return 0; | |
1759 | } | |
1760 | ||
f93b4edd MB |
1761 | #ifdef USE_THREADS |
1762 | int | |
8ac85365 | 1763 | magic_mutexfree(SV *sv, MAGIC *mg) |
f93b4edd MB |
1764 | { |
1765 | dTHR; | |
bc1f4c86 MB |
1766 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
1767 | (unsigned long)thr, (unsigned long)sv);) | |
f93b4edd MB |
1768 | if (MgOWNER(mg)) |
1769 | croak("panic: magic_mutexfree"); | |
1770 | MUTEX_DESTROY(MgMUTEXP(mg)); | |
1771 | COND_DESTROY(MgCONDP(mg)); | |
e55aaa0e | 1772 | SvREFCNT_dec(sv); |
f93b4edd MB |
1773 | return 0; |
1774 | } | |
1775 | #endif /* USE_THREADS */ | |
1776 | ||
79072805 | 1777 | I32 |
8ac85365 | 1778 | whichsig(char *sig) |
79072805 LW |
1779 | { |
1780 | register char **sigv; | |
1781 | ||
1782 | for (sigv = sig_name+1; *sigv; sigv++) | |
1783 | if (strEQ(sig,*sigv)) | |
8e07c86e | 1784 | return sig_num[sigv - sig_name]; |
79072805 LW |
1785 | #ifdef SIGCLD |
1786 | if (strEQ(sig,"CHLD")) | |
1787 | return SIGCLD; | |
1788 | #endif | |
1789 | #ifdef SIGCHLD | |
1790 | if (strEQ(sig,"CLD")) | |
1791 | return SIGCHLD; | |
1792 | #endif | |
1793 | return 0; | |
1794 | } | |
1795 | ||
84902520 TB |
1796 | static SV* sig_sv; |
1797 | ||
1798 | static void | |
8ac85365 | 1799 | unwind_handler_stack(void *p) |
84902520 | 1800 | { |
ff26ac79 | 1801 | dTHR; |
84902520 TB |
1802 | U32 flags = *(U32*)p; |
1803 | ||
1804 | if (flags & 1) | |
1805 | savestack_ix -= 5; /* Unprotect save in progress. */ | |
1806 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
1807 | if (flags & 64) | |
1808 | SvREFCNT_dec(sig_sv); | |
1809 | } | |
1810 | ||
ecfc5424 | 1811 | Signal_t |
8ac85365 | 1812 | sighandler(int sig) |
79072805 LW |
1813 | { |
1814 | dSP; | |
00d579c5 | 1815 | GV *gv = Nullgv; |
a0d0e21e | 1816 | HV *st; |
84902520 | 1817 | SV *sv, *tSv = Sv; |
00d579c5 | 1818 | CV *cv = Nullcv; |
84902520 TB |
1819 | OP *myop = op; |
1820 | U32 flags = 0; | |
1821 | I32 o_save_i = savestack_ix, type; | |
84902520 TB |
1822 | XPV *tXpv = Xpv; |
1823 | ||
1824 | if (savestack_ix + 15 <= savestack_max) | |
1825 | flags |= 1; | |
84902520 TB |
1826 | if (markstack_ptr < markstack_max - 2) |
1827 | flags |= 4; | |
1828 | if (retstack_ix < retstack_max - 2) | |
1829 | flags |= 8; | |
1830 | if (scopestack_ix < scopestack_max - 3) | |
1831 | flags |= 16; | |
1832 | ||
ff0cee69 | 1833 | if (!psig_ptr[sig]) |
1834 | die("Signal SIG%s received, but no signal handler set.\n", | |
1835 | sig_name[sig]); | |
1836 | ||
84902520 TB |
1837 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
1838 | infinity, so we fix 4 (in fact 5): */ | |
1839 | if (flags & 1) { | |
1840 | savestack_ix += 5; /* Protect save in progress. */ | |
1841 | o_save_i = savestack_ix; | |
1842 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); | |
1843 | } | |
1844 | if (flags & 4) | |
1845 | markstack_ptr++; /* Protect mark. */ | |
1846 | if (flags & 8) { | |
1847 | retstack_ix++; | |
1848 | retstack[retstack_ix] = NULL; | |
1849 | } | |
1850 | if (flags & 16) | |
1851 | scopestack_ix += 1; | |
1852 | /* sv_2cv is too complicated, try a simpler variant first: */ | |
1853 | if (!SvROK(psig_ptr[sig]) || !(cv = (CV*)SvRV(psig_ptr[sig])) | |
1854 | || SvTYPE(cv) != SVt_PVCV) | |
1855 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); | |
1856 | ||
a0d0e21e | 1857 | if (!cv || !CvROOT(cv)) { |
79072805 LW |
1858 | if (dowarn) |
1859 | warn("SIG%s handler \"%s\" not defined.\n", | |
00d579c5 GS |
1860 | sig_name[sig], (gv ? GvENAME(gv) |
1861 | : ((cv && CvGV(cv)) | |
1862 | ? GvENAME(CvGV(cv)) | |
1863 | : "__ANON__"))); | |
1864 | goto cleanup; | |
79072805 LW |
1865 | } |
1866 | ||
84902520 | 1867 | if(psig_name[sig]) { |
88e89b8a | 1868 | sv = SvREFCNT_inc(psig_name[sig]); |
84902520 TB |
1869 | flags |= 64; |
1870 | sig_sv = sv; | |
1871 | } else { | |
ff0cee69 | 1872 | sv = sv_newmortal(); |
1873 | sv_setpv(sv,sig_name[sig]); | |
88e89b8a | 1874 | } |
e336de0d GS |
1875 | |
1876 | PUSHSTACK(SI_SIGNAL); | |
924508f0 | 1877 | PUSHMARK(SP); |
79072805 | 1878 | PUSHs(sv); |
79072805 | 1879 | PUTBACK; |
a0d0e21e LW |
1880 | |
1881 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 | 1882 | |
e336de0d | 1883 | POPSTACK(); |
00d579c5 | 1884 | cleanup: |
84902520 TB |
1885 | if (flags & 1) |
1886 | savestack_ix -= 8; /* Unprotect save in progress. */ | |
84902520 TB |
1887 | if (flags & 4) |
1888 | markstack_ptr--; | |
1889 | if (flags & 8) | |
1890 | retstack_ix--; | |
1891 | if (flags & 16) | |
1892 | scopestack_ix -= 1; | |
1893 | if (flags & 64) | |
1894 | SvREFCNT_dec(sv); | |
1895 | op = myop; /* Apparently not needed... */ | |
1896 | ||
1897 | Sv = tSv; /* Restore global temporaries. */ | |
1898 | Xpv = tXpv; | |
79072805 LW |
1899 | return; |
1900 | } | |
4e35701f NIS |
1901 | |
1902 |