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) |
c277df42 | 463 | tainted = was_tainted || RX_MATCH_TAINTED(rx); |
748a9306 LW |
464 | break; |
465 | } | |
79072805 | 466 | } |
79072805 | 467 | } |
748a9306 | 468 | sv_setsv(sv,&sv_undef); |
79072805 LW |
469 | break; |
470 | case '+': | |
bbce6d69 | 471 | if (curpm && (rx = curpm->op_pmregexp)) { |
472 | paren = rx->lastparen; | |
a0d0e21e LW |
473 | if (paren) |
474 | goto getparen; | |
79072805 | 475 | } |
748a9306 | 476 | sv_setsv(sv,&sv_undef); |
79072805 LW |
477 | break; |
478 | case '`': | |
bbce6d69 | 479 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 | 480 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 | 481 | i = rx->startp[0] - s; |
13f57bf8 | 482 | goto getrx; |
79072805 | 483 | } |
79072805 | 484 | } |
748a9306 | 485 | sv_setsv(sv,&sv_undef); |
79072805 LW |
486 | break; |
487 | case '\'': | |
bbce6d69 | 488 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 CS |
489 | if (rx->subend && (s = rx->endp[0])) { |
490 | i = rx->subend - s; | |
491 | goto getrx; | |
79072805 | 492 | } |
79072805 | 493 | } |
748a9306 | 494 | sv_setsv(sv,&sv_undef); |
79072805 LW |
495 | break; |
496 | case '.': | |
497 | #ifndef lint | |
a0d0e21e | 498 | if (GvIO(last_in_gv)) { |
188ea221 | 499 | sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv))); |
79072805 LW |
500 | } |
501 | #endif | |
502 | break; | |
503 | case '?': | |
809a5acc MB |
504 | { |
505 | dTHR; | |
506 | sv_setiv(sv, (IV)STATUS_CURRENT); | |
ff0cee69 | 507 | #ifdef COMPLEX_STATUS |
809a5acc MB |
508 | LvTARGOFF(sv) = statusvalue; |
509 | LvTARGLEN(sv) = statusvalue_vms; | |
ff0cee69 | 510 | #endif |
809a5acc | 511 | } |
79072805 LW |
512 | break; |
513 | case '^': | |
a0d0e21e | 514 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 LW |
515 | if (s) |
516 | sv_setpv(sv,s); | |
517 | else { | |
518 | sv_setpv(sv,GvENAME(defoutgv)); | |
519 | sv_catpv(sv,"_TOP"); | |
520 | } | |
521 | break; | |
522 | case '~': | |
a0d0e21e | 523 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 LW |
524 | if (!s) |
525 | s = GvENAME(defoutgv); | |
526 | sv_setpv(sv,s); | |
527 | break; | |
528 | #ifndef lint | |
529 | case '=': | |
188ea221 | 530 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 LW |
531 | break; |
532 | case '-': | |
188ea221 | 533 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 LW |
534 | break; |
535 | case '%': | |
188ea221 | 536 | sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv))); |
79072805 LW |
537 | break; |
538 | #endif | |
539 | case ':': | |
540 | break; | |
541 | case '/': | |
542 | break; | |
543 | case '[': | |
0f15f207 | 544 | WITH_THR(sv_setiv(sv, (IV)curcop->cop_arybase)); |
79072805 LW |
545 | break; |
546 | case '|': | |
188ea221 | 547 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
548 | break; |
549 | case ',': | |
550 | sv_setpvn(sv,ofs,ofslen); | |
551 | break; | |
552 | case '\\': | |
553 | sv_setpvn(sv,ors,orslen); | |
554 | break; | |
555 | case '#': | |
556 | sv_setpv(sv,ofmt); | |
557 | break; | |
558 | case '!': | |
a5f75d66 | 559 | #ifdef VMS |
946ec16e | 560 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 561 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 562 | #else |
88e89b8a | 563 | { |
564 | int saveerrno = errno; | |
946ec16e | 565 | sv_setnv(sv, (double)errno); |
88e89b8a | 566 | #ifdef OS2 |
567 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
568 | else | |
a5f75d66 | 569 | #endif |
2304df62 | 570 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 571 | errno = saveerrno; |
572 | } | |
573 | #endif | |
946ec16e | 574 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
575 | break; |
576 | case '<': | |
188ea221 | 577 | sv_setiv(sv, (IV)uid); |
79072805 LW |
578 | break; |
579 | case '>': | |
188ea221 | 580 | sv_setiv(sv, (IV)euid); |
79072805 LW |
581 | break; |
582 | case '(': | |
188ea221 | 583 | sv_setiv(sv, (IV)gid); |
fc36a67e | 584 | sv_setpvf(sv, "%Vd", (IV)gid); |
79072805 LW |
585 | goto add_groups; |
586 | case ')': | |
188ea221 | 587 | sv_setiv(sv, (IV)egid); |
fc36a67e | 588 | sv_setpvf(sv, "%Vd", (IV)egid); |
79072805 | 589 | add_groups: |
79072805 | 590 | #ifdef HAS_GETGROUPS |
79072805 | 591 | { |
a0d0e21e | 592 | Groups_t gary[NGROUPS]; |
79072805 | 593 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 594 | while (--i >= 0) |
fc36a67e | 595 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 LW |
596 | } |
597 | #endif | |
29355cf7 | 598 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
599 | break; |
600 | case '*': | |
601 | break; | |
602 | case '0': | |
603 | break; | |
a863c7d1 MB |
604 | #ifdef USE_THREADS |
605 | case '@': | |
38a03e6e | 606 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
607 | break; |
608 | #endif /* USE_THREADS */ | |
79072805 | 609 | } |
a0d0e21e | 610 | return 0; |
79072805 LW |
611 | } |
612 | ||
613 | int | |
8ac85365 | 614 | magic_getuvar(SV *sv, MAGIC *mg) |
79072805 LW |
615 | { |
616 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
617 | ||
618 | if (uf && uf->uf_val) | |
619 | (*uf->uf_val)(uf->uf_index, sv); | |
620 | return 0; | |
621 | } | |
622 | ||
623 | int | |
8ac85365 | 624 | magic_setenv(SV *sv, MAGIC *mg) |
79072805 LW |
625 | { |
626 | register char *s; | |
88e89b8a | 627 | char *ptr; |
5aabfad6 | 628 | STRLEN len, klen; |
a0d0e21e | 629 | I32 i; |
1e422769 | 630 | |
a0d0e21e | 631 | s = SvPV(sv,len); |
5aabfad6 | 632 | ptr = MgPV(mg,klen); |
88e89b8a | 633 | my_setenv(ptr, s); |
1e422769 | 634 | |
a0d0e21e LW |
635 | #ifdef DYNAMIC_ENV_FETCH |
636 | /* We just undefd an environment var. Is a replacement */ | |
637 | /* waiting in the wings? */ | |
638 | if (!len) { | |
5aabfad6 | 639 | SV **valp; |
640 | if ((valp = hv_fetch(GvHVn(envgv), ptr, klen, FALSE))) | |
641 | s = SvPV(*valp, len); | |
a0d0e21e LW |
642 | } |
643 | #endif | |
1e422769 | 644 | |
39e571d4 | 645 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
646 | /* And you'll never guess what the dog had */ |
647 | /* in its mouth... */ | |
463ee0b2 | 648 | if (tainting) { |
1e422769 | 649 | MgTAINTEDDIR_off(mg); |
650 | #ifdef VMS | |
5aabfad6 | 651 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 652 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
653 | struct stat sbuf; | |
654 | int i = 0, j = 0; | |
655 | ||
656 | do { /* DCL$PATH may be a search list */ | |
657 | while (1) { /* as may dev portion of any element */ | |
658 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
659 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
660 | cando_by_name(S_IWUSR,0,elt) ) { | |
661 | MgTAINTEDDIR_on(mg); | |
662 | return 0; | |
663 | } | |
664 | } | |
665 | if ((cp = strchr(elt, ':')) != Nullch) | |
666 | *cp = '\0'; | |
667 | if (my_trnlnm(elt, eltbuf, j++)) | |
668 | elt = eltbuf; | |
669 | else | |
670 | break; | |
671 | } | |
672 | j = 0; | |
673 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
674 | } | |
675 | #endif /* VMS */ | |
5aabfad6 | 676 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 677 | char *strend = s + len; |
463ee0b2 LW |
678 | |
679 | while (s < strend) { | |
96827780 | 680 | char tmpbuf[256]; |
1e422769 | 681 | struct stat st; |
96827780 | 682 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 683 | s, strend, ':', &i); |
463ee0b2 | 684 | s++; |
96827780 MB |
685 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
686 | || *tmpbuf != '/' | |
687 | || (Stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { | |
8990e307 | 688 | MgTAINTEDDIR_on(mg); |
1e422769 | 689 | return 0; |
690 | } | |
463ee0b2 | 691 | } |
79072805 LW |
692 | } |
693 | } | |
39e571d4 | 694 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 695 | |
79072805 LW |
696 | return 0; |
697 | } | |
698 | ||
699 | int | |
8ac85365 | 700 | magic_clearenv(SV *sv, MAGIC *mg) |
85e6fe83 | 701 | { |
5aabfad6 | 702 | my_setenv(MgPV(mg,na),Nullch); |
85e6fe83 LW |
703 | return 0; |
704 | } | |
705 | ||
88e89b8a | 706 | int |
8ac85365 | 707 | magic_set_all_env(SV *sv, MAGIC *mg) |
fb73857a | 708 | { |
709 | #if defined(VMS) | |
710 | die("Can't make list assignment to %%ENV on this system"); | |
711 | #else | |
d58bf5aa | 712 | dTHR; |
fb73857a | 713 | if (localizing) { |
714 | HE* entry; | |
715 | magic_clear_all_env(sv,mg); | |
716 | hv_iterinit((HV*)sv); | |
717 | while (entry = hv_iternext((HV*)sv)) { | |
718 | I32 keylen; | |
719 | my_setenv(hv_iterkey(entry, &keylen), | |
720 | SvPV(hv_iterval((HV*)sv, entry), na)); | |
721 | } | |
722 | } | |
723 | #endif | |
724 | return 0; | |
725 | } | |
726 | ||
727 | int | |
8ac85365 | 728 | magic_clear_all_env(SV *sv, MAGIC *mg) |
66b1d557 | 729 | { |
3e3baf6d TB |
730 | #if defined(VMS) |
731 | die("Can't make list assignment to %%ENV on this system"); | |
732 | #else | |
733 | #ifdef WIN32 | |
734 | char *envv = GetEnvironmentStrings(); | |
735 | char *cur = envv; | |
736 | STRLEN len; | |
737 | while (*cur) { | |
738 | char *end = strchr(cur,'='); | |
739 | if (end && end != cur) { | |
740 | *end = '\0'; | |
741 | my_setenv(cur,Nullch); | |
742 | *end = '='; | |
743 | cur += strlen(end+1)+1; | |
744 | } | |
745 | else if ((len = strlen(cur))) | |
746 | cur += len+1; | |
747 | } | |
748 | FreeEnvironmentStrings(envv); | |
66b1d557 HM |
749 | #else |
750 | I32 i; | |
751 | ||
752 | if (environ == origenviron) | |
753 | New(901, environ, 1, char*); | |
754 | else | |
755 | for (i = 0; environ[i]; i++) | |
756 | Safefree(environ[i]); | |
757 | environ[0] = Nullch; | |
758 | ||
66b1d557 | 759 | #endif |
3e3baf6d TB |
760 | #endif |
761 | return 0; | |
66b1d557 HM |
762 | } |
763 | ||
764 | int | |
8ac85365 | 765 | magic_getsig(SV *sv, MAGIC *mg) |
88e89b8a | 766 | { |
767 | I32 i; | |
768 | /* Are we fetching a signal entry? */ | |
5aabfad6 | 769 | i = whichsig(MgPV(mg,na)); |
88e89b8a | 770 | if (i) { |
771 | if(psig_ptr[i]) | |
772 | sv_setsv(sv,psig_ptr[i]); | |
773 | else { | |
ff68c719 | 774 | Sighandler_t sigstate = rsignal_state(i); |
775 | ||
88e89b8a | 776 | /* cache state so we don't fetch it again */ |
ff68c719 | 777 | if(sigstate == SIG_IGN) |
88e89b8a | 778 | sv_setpv(sv,"IGNORE"); |
779 | else | |
780 | sv_setsv(sv,&sv_undef); | |
781 | psig_ptr[i] = SvREFCNT_inc(sv); | |
782 | SvTEMP_off(sv); | |
783 | } | |
784 | } | |
785 | return 0; | |
786 | } | |
787 | int | |
8ac85365 | 788 | magic_clearsig(SV *sv, MAGIC *mg) |
88e89b8a | 789 | { |
790 | I32 i; | |
791 | /* Are we clearing a signal entry? */ | |
5aabfad6 | 792 | i = whichsig(MgPV(mg,na)); |
88e89b8a | 793 | if (i) { |
794 | if(psig_ptr[i]) { | |
795 | SvREFCNT_dec(psig_ptr[i]); | |
796 | psig_ptr[i]=0; | |
797 | } | |
798 | if(psig_name[i]) { | |
799 | SvREFCNT_dec(psig_name[i]); | |
800 | psig_name[i]=0; | |
801 | } | |
802 | } | |
803 | return 0; | |
804 | } | |
3d37d572 | 805 | |
85e6fe83 | 806 | int |
8ac85365 | 807 | magic_setsig(SV *sv, MAGIC *mg) |
79072805 | 808 | { |
11343788 | 809 | dTHR; |
79072805 LW |
810 | register char *s; |
811 | I32 i; | |
748a9306 | 812 | SV** svp; |
a0d0e21e | 813 | |
5aabfad6 | 814 | s = MgPV(mg,na); |
748a9306 LW |
815 | if (*s == '_') { |
816 | if (strEQ(s,"__DIE__")) | |
817 | svp = &diehook; | |
818 | else if (strEQ(s,"__WARN__")) | |
819 | svp = &warnhook; | |
820 | else if (strEQ(s,"__PARSE__")) | |
821 | svp = &parsehook; | |
822 | else | |
823 | croak("No such hook: %s", s); | |
824 | i = 0; | |
4633a7c4 LW |
825 | if (*svp) { |
826 | SvREFCNT_dec(*svp); | |
827 | *svp = 0; | |
828 | } | |
748a9306 LW |
829 | } |
830 | else { | |
831 | i = whichsig(s); /* ...no, a brick */ | |
832 | if (!i) { | |
833 | if (dowarn || strEQ(s,"ALARM")) | |
834 | warn("No such signal: SIG%s", s); | |
835 | return 0; | |
836 | } | |
ff0cee69 | 837 | SvREFCNT_dec(psig_name[i]); |
838 | SvREFCNT_dec(psig_ptr[i]); | |
88e89b8a | 839 | psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 840 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
ff0cee69 | 841 | psig_name[i] = newSVpv(s, strlen(s)); |
88e89b8a | 842 | SvREADONLY_on(psig_name[i]); |
748a9306 | 843 | } |
a0d0e21e | 844 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 845 | if (i) |
c23142e2 | 846 | (void)rsignal(i, sighandlerp); |
748a9306 LW |
847 | else |
848 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
849 | return 0; |
850 | } | |
851 | s = SvPV_force(sv,na); | |
748a9306 LW |
852 | if (strEQ(s,"IGNORE")) { |
853 | if (i) | |
ff68c719 | 854 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
855 | else |
856 | *svp = 0; | |
857 | } | |
858 | else if (strEQ(s,"DEFAULT") || !*s) { | |
859 | if (i) | |
ff68c719 | 860 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
861 | else |
862 | *svp = 0; | |
863 | } | |
79072805 | 864 | else { |
5aabfad6 | 865 | /* |
866 | * We should warn if HINT_STRICT_REFS, but without | |
867 | * access to a known hint bit in a known OP, we can't | |
868 | * tell whether HINT_STRICT_REFS is in force or not. | |
869 | */ | |
46fc3d4c | 870 | if (!strchr(s,':') && !strchr(s,'\'')) |
871 | sv_setpv(sv, form("main::%s", s)); | |
748a9306 | 872 | if (i) |
c23142e2 | 873 | (void)rsignal(i, sighandlerp); |
748a9306 LW |
874 | else |
875 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
876 | } |
877 | return 0; | |
878 | } | |
879 | ||
880 | int | |
8ac85365 | 881 | magic_setisa(SV *sv, MAGIC *mg) |
79072805 | 882 | { |
a0231f0e MB |
883 | HV *stash; |
884 | SV **svp; | |
885 | I32 fill; | |
886 | HV *basefields = Nullhv; | |
887 | GV **gvp; | |
888 | GV *gv; | |
889 | HE *he; | |
890 | static char *FIELDS = "FIELDS"; | |
891 | ||
463ee0b2 | 892 | sub_generation++; |
a0231f0e MB |
893 | |
894 | if (mg->mg_type == 'i') | |
895 | return 0; /* Ignore lower-case version of the magic */ | |
896 | ||
897 | stash = GvSTASH(mg->mg_obj); | |
898 | svp = AvARRAY((AV*)sv); | |
93965878 NIS |
899 | |
900 | /* NOTE: No support for tied ISA */ | |
901 | for (fill = AvFILLp((AV*)sv); fill >= 0; fill--, svp++) { | |
a0231f0e MB |
902 | HV *basestash = gv_stashsv(*svp, FALSE); |
903 | ||
904 | if (!basestash) { | |
905 | if (dowarn) | |
906 | warn("No such package \"%_\" in @ISA assignment", *svp); | |
907 | continue; | |
908 | } | |
909 | gvp = (GV**)hv_fetch(basestash, FIELDS, 6, FALSE); | |
910 | if (gvp && *gvp && GvHV(*gvp)) { | |
911 | if (basefields) | |
912 | croak("Can't multiply inherit %%FIELDS"); | |
913 | basefields = GvHV(*gvp); | |
914 | } | |
915 | } | |
916 | ||
917 | if (!basefields) | |
918 | return 0; | |
919 | ||
920 | gv = (GV*)*hv_fetch(stash, FIELDS, 6, TRUE); | |
921 | if (!isGV(gv)) | |
922 | gv_init(gv, stash, FIELDS, 6, TRUE); | |
923 | if (!GvHV(gv)) | |
924 | GvHV(gv) = newHV(); | |
925 | if (HvKEYS(GvHV(gv))) | |
926 | croak("Inherited %%FIELDS can't override existing %%FIELDS"); | |
927 | ||
928 | hv_iterinit(GvHV(gv)); | |
929 | while ((he = hv_iternext(basefields))) | |
930 | hv_store(GvHV(gv), HeKEY(he), HeKLEN(he), HeVAL(he), HeHASH(he)); | |
931 | ||
463ee0b2 LW |
932 | return 0; |
933 | } | |
934 | ||
a0d0e21e LW |
935 | #ifdef OVERLOAD |
936 | ||
463ee0b2 | 937 | int |
8ac85365 | 938 | magic_setamagic(SV *sv, MAGIC *mg) |
463ee0b2 | 939 | { |
a0d0e21e LW |
940 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
941 | amagic_generation++; | |
463ee0b2 | 942 | |
a0d0e21e LW |
943 | return 0; |
944 | } | |
945 | #endif /* OVERLOAD */ | |
463ee0b2 | 946 | |
946ec16e | 947 | int |
8ac85365 | 948 | magic_setnkeys(SV *sv, MAGIC *mg) |
946ec16e | 949 | { |
950 | if (LvTARG(sv)) { | |
951 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
952 | LvTARG(sv) = Nullsv; /* Don't allow a ref to reassign this. */ | |
953 | } | |
954 | return 0; | |
93965878 | 955 | } |
946ec16e | 956 | |
a0d0e21e | 957 | static int |
93965878 | 958 | magic_methcall(MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
959 | { |
960 | dSP; | |
463ee0b2 | 961 | |
924508f0 GS |
962 | PUSHMARK(SP); |
963 | EXTEND(SP, n); | |
a0d0e21e | 964 | PUSHs(mg->mg_obj); |
93965878 NIS |
965 | if (n > 1) { |
966 | if (mg->mg_ptr) { | |
967 | if (mg->mg_len >= 0) | |
968 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
969 | else if (mg->mg_len == HEf_SVKEY) | |
970 | PUSHs((SV*)mg->mg_ptr); | |
971 | } | |
972 | else if (mg->mg_type == 'p') { | |
973 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
974 | } | |
975 | } | |
976 | if (n > 2) { | |
977 | PUSHs(val); | |
88e89b8a | 978 | } |
463ee0b2 LW |
979 | PUTBACK; |
980 | ||
93965878 NIS |
981 | return perl_call_method(meth, flags); |
982 | } | |
983 | ||
984 | static int | |
985 | magic_methpack(SV *sv, MAGIC *mg, char *meth) | |
986 | { | |
987 | dSP; | |
988 | ||
989 | ENTER; | |
990 | SAVETMPS; | |
991 | ||
992 | if (magic_methcall(mg, meth, G_SCALAR, 2, NULL)) { | |
a0d0e21e | 993 | sv_setsv(sv, *stack_sp--); |
93965878 | 994 | } |
463ee0b2 | 995 | |
a0d0e21e LW |
996 | FREETMPS; |
997 | LEAVE; | |
998 | return 0; | |
999 | } | |
463ee0b2 | 1000 | |
a0d0e21e | 1001 | int |
8ac85365 | 1002 | magic_getpack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1003 | { |
1004 | magic_methpack(sv,mg,"FETCH"); | |
1005 | if (mg->mg_ptr) | |
1006 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1007 | return 0; |
1008 | } | |
1009 | ||
1010 | int | |
8ac85365 | 1011 | magic_setpack(SV *sv, MAGIC *mg) |
a60c0954 NIS |
1012 | { |
1013 | ENTER; | |
93965878 | 1014 | magic_methcall(mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
a60c0954 | 1015 | LEAVE; |
463ee0b2 LW |
1016 | return 0; |
1017 | } | |
1018 | ||
1019 | int | |
8ac85365 | 1020 | magic_clearpack(SV *sv, MAGIC *mg) |
463ee0b2 | 1021 | { |
a0d0e21e LW |
1022 | return magic_methpack(sv,mg,"DELETE"); |
1023 | } | |
463ee0b2 | 1024 | |
93965878 NIS |
1025 | |
1026 | U32 | |
1027 | magic_sizepack(SV *sv, MAGIC *mg) | |
1028 | { | |
1029 | dTHR; | |
1030 | U32 retval = 0; | |
1031 | ||
1032 | ENTER; | |
1033 | SAVETMPS; | |
1034 | if (magic_methcall(mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { | |
1035 | sv = *stack_sp--; | |
a60c0954 | 1036 | retval = (U32) SvIV(sv)-1; |
93965878 NIS |
1037 | } |
1038 | FREETMPS; | |
1039 | LEAVE; | |
1040 | return retval; | |
1041 | } | |
1042 | ||
8ac85365 | 1043 | int magic_wipepack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1044 | { |
1045 | dSP; | |
463ee0b2 | 1046 | |
924508f0 | 1047 | PUSHMARK(SP); |
a0d0e21e | 1048 | XPUSHs(mg->mg_obj); |
463ee0b2 | 1049 | PUTBACK; |
a60c0954 | 1050 | ENTER; |
a0d0e21e | 1051 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
a60c0954 | 1052 | LEAVE; |
463ee0b2 LW |
1053 | return 0; |
1054 | } | |
1055 | ||
1056 | int | |
8ac85365 | 1057 | magic_nextpack(SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1058 | { |
463ee0b2 | 1059 | dSP; |
a0d0e21e | 1060 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1061 | |
1062 | ENTER; | |
a0d0e21e | 1063 | SAVETMPS; |
924508f0 GS |
1064 | PUSHMARK(SP); |
1065 | EXTEND(SP, 2); | |
a0d0e21e | 1066 | PUSHs(mg->mg_obj); |
463ee0b2 LW |
1067 | if (SvOK(key)) |
1068 | PUSHs(key); | |
1069 | PUTBACK; | |
1070 | ||
a0d0e21e LW |
1071 | if (perl_call_method(meth, G_SCALAR)) |
1072 | sv_setsv(key, *stack_sp--); | |
463ee0b2 | 1073 | |
a0d0e21e LW |
1074 | FREETMPS; |
1075 | LEAVE; | |
79072805 LW |
1076 | return 0; |
1077 | } | |
1078 | ||
1079 | int | |
8ac85365 | 1080 | magic_existspack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1081 | { |
1082 | return magic_methpack(sv,mg,"EXISTS"); | |
1083 | } | |
1084 | ||
1085 | int | |
8ac85365 | 1086 | magic_setdbline(SV *sv, MAGIC *mg) |
79072805 | 1087 | { |
11343788 | 1088 | dTHR; |
79072805 LW |
1089 | OP *o; |
1090 | I32 i; | |
1091 | GV* gv; | |
1092 | SV** svp; | |
1093 | ||
1094 | gv = DBline; | |
1095 | i = SvTRUE(sv); | |
188ea221 | 1096 | svp = av_fetch(GvAV(gv), |
5aabfad6 | 1097 | atoi(MgPV(mg,na)), FALSE); |
8990e307 | 1098 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 1099 | o->op_private = i; |
79072805 LW |
1100 | else |
1101 | warn("Can't break at that line\n"); | |
1102 | return 0; | |
1103 | } | |
1104 | ||
1105 | int | |
8ac85365 | 1106 | magic_getarylen(SV *sv, MAGIC *mg) |
79072805 | 1107 | { |
0f15f207 | 1108 | dTHR; |
a0d0e21e | 1109 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 LW |
1110 | return 0; |
1111 | } | |
1112 | ||
1113 | int | |
8ac85365 | 1114 | magic_setarylen(SV *sv, MAGIC *mg) |
79072805 | 1115 | { |
0f15f207 | 1116 | dTHR; |
a0d0e21e LW |
1117 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
1118 | return 0; | |
1119 | } | |
1120 | ||
1121 | int | |
8ac85365 | 1122 | magic_getpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1123 | { |
1124 | SV* lsv = LvTARG(sv); | |
1125 | ||
1126 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1127 | mg = mg_find(lsv, 'g'); | |
1128 | if (mg && mg->mg_len >= 0) { | |
0f15f207 | 1129 | dTHR; |
a0d0e21e LW |
1130 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); |
1131 | return 0; | |
1132 | } | |
1133 | } | |
1134 | (void)SvOK_off(sv); | |
1135 | return 0; | |
1136 | } | |
1137 | ||
1138 | int | |
8ac85365 | 1139 | magic_setpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1140 | { |
1141 | SV* lsv = LvTARG(sv); | |
1142 | SSize_t pos; | |
1143 | STRLEN len; | |
1144 | ||
1145 | mg = 0; | |
1146 | ||
1147 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1148 | mg = mg_find(lsv, 'g'); | |
1149 | if (!mg) { | |
1150 | if (!SvOK(sv)) | |
1151 | return 0; | |
1152 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1153 | mg = mg_find(lsv, 'g'); | |
1154 | } | |
1155 | else if (!SvOK(sv)) { | |
1156 | mg->mg_len = -1; | |
1157 | return 0; | |
1158 | } | |
1159 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1160 | ||
0f15f207 | 1161 | WITH_THR(pos = SvIV(sv) - curcop->cop_arybase); |
a0d0e21e LW |
1162 | if (pos < 0) { |
1163 | pos += len; | |
1164 | if (pos < 0) | |
1165 | pos = 0; | |
1166 | } | |
1167 | else if (pos > len) | |
1168 | pos = len; | |
1169 | mg->mg_len = pos; | |
71be2cbc | 1170 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1171 | |
79072805 LW |
1172 | return 0; |
1173 | } | |
1174 | ||
1175 | int | |
8ac85365 | 1176 | magic_getglob(SV *sv, MAGIC *mg) |
79072805 | 1177 | { |
8646b087 | 1178 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1179 | SvFAKE_off(sv); | |
946ec16e | 1180 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1181 | SvFAKE_on(sv); |
1182 | } | |
1183 | else | |
946ec16e | 1184 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1185 | return 0; |
1186 | } | |
1187 | ||
1188 | int | |
8ac85365 | 1189 | magic_setglob(SV *sv, MAGIC *mg) |
79072805 LW |
1190 | { |
1191 | register char *s; | |
1192 | GV* gv; | |
1193 | ||
1194 | if (!SvOK(sv)) | |
1195 | return 0; | |
463ee0b2 | 1196 | s = SvPV(sv, na); |
79072805 LW |
1197 | if (*s == '*' && s[1]) |
1198 | s++; | |
85e6fe83 | 1199 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1200 | if (sv == (SV*)gv) |
1201 | return 0; | |
1202 | if (GvGP(sv)) | |
88e89b8a | 1203 | gp_free((GV*)sv); |
79072805 | 1204 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1205 | return 0; |
1206 | } | |
1207 | ||
1208 | int | |
8ac85365 | 1209 | magic_setsubstr(SV *sv, MAGIC *mg) |
79072805 | 1210 | { |
8990e307 LW |
1211 | STRLEN len; |
1212 | char *tmps = SvPV(sv,len); | |
1213 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1214 | return 0; |
1215 | } | |
1216 | ||
1217 | int | |
8ac85365 | 1218 | magic_gettaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1219 | { |
a863c7d1 | 1220 | dTHR; |
bbce6d69 | 1221 | TAINT_IF((mg->mg_len & 1) || |
1222 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1223 | return 0; |
1224 | } | |
1225 | ||
1226 | int | |
8ac85365 | 1227 | magic_settaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1228 | { |
11343788 | 1229 | dTHR; |
748a9306 LW |
1230 | if (localizing) { |
1231 | if (localizing == 1) | |
1232 | mg->mg_len <<= 1; | |
1233 | else | |
1234 | mg->mg_len >>= 1; | |
a0d0e21e | 1235 | } |
748a9306 LW |
1236 | else if (tainted) |
1237 | mg->mg_len |= 1; | |
1238 | else | |
1239 | mg->mg_len &= ~1; | |
463ee0b2 LW |
1240 | return 0; |
1241 | } | |
1242 | ||
1243 | int | |
8ac85365 | 1244 | magic_setvec(SV *sv, MAGIC *mg) |
79072805 LW |
1245 | { |
1246 | do_vecset(sv); /* XXX slurp this routine */ | |
1247 | return 0; | |
1248 | } | |
1249 | ||
1250 | int | |
8ac85365 | 1251 | magic_getdefelem(SV *sv, MAGIC *mg) |
5f05dabc | 1252 | { |
71be2cbc | 1253 | SV *targ = Nullsv; |
5f05dabc | 1254 | if (LvTARGLEN(sv)) { |
68dc0745 | 1255 | if (mg->mg_obj) { |
1256 | HV* hv = (HV*)LvTARG(sv); | |
1257 | HE* he = hv_fetch_ent(hv, mg->mg_obj, FALSE, 0); | |
1258 | if (he) | |
1259 | targ = HeVAL(he); | |
1260 | } | |
1261 | else { | |
93965878 | 1262 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1263 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1264 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1265 | } | |
1266 | if (targ && targ != &sv_undef) { | |
e858de61 | 1267 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 | 1268 | /* somebody else defined it for us */ |
1269 | SvREFCNT_dec(LvTARG(sv)); | |
1270 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1271 | LvTARGLEN(sv) = 0; | |
1272 | SvREFCNT_dec(mg->mg_obj); | |
1273 | mg->mg_obj = Nullsv; | |
1274 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1275 | } | |
5f05dabc | 1276 | } |
71be2cbc | 1277 | else |
1278 | targ = LvTARG(sv); | |
1279 | sv_setsv(sv, targ ? targ : &sv_undef); | |
1280 | return 0; | |
1281 | } | |
1282 | ||
1283 | int | |
8ac85365 | 1284 | magic_setdefelem(SV *sv, MAGIC *mg) |
71be2cbc | 1285 | { |
1286 | if (LvTARGLEN(sv)) | |
68dc0745 | 1287 | vivify_defelem(sv); |
1288 | if (LvTARG(sv)) { | |
5f05dabc | 1289 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1290 | SvSETMAGIC(LvTARG(sv)); |
1291 | } | |
5f05dabc | 1292 | return 0; |
1293 | } | |
1294 | ||
1295 | int | |
8ac85365 | 1296 | magic_freedefelem(SV *sv, MAGIC *mg) |
5f05dabc | 1297 | { |
1298 | SvREFCNT_dec(LvTARG(sv)); | |
71be2cbc | 1299 | return 0; |
1300 | } | |
1301 | ||
1302 | void | |
8ac85365 | 1303 | vivify_defelem(SV *sv) |
71be2cbc | 1304 | { |
e858de61 | 1305 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
68dc0745 | 1306 | MAGIC* mg; |
1307 | SV* value; | |
71be2cbc | 1308 | |
68dc0745 | 1309 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1310 | return; |
68dc0745 | 1311 | if (mg->mg_obj) { |
1312 | HV* hv = (HV*)LvTARG(sv); | |
1313 | HE* he = hv_fetch_ent(hv, mg->mg_obj, TRUE, 0); | |
1314 | if (!he || (value = HeVAL(he)) == &sv_undef) | |
1315 | croak(no_helem, SvPV(mg->mg_obj, na)); | |
71be2cbc | 1316 | } |
68dc0745 | 1317 | else { |
1318 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1319 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1320 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1321 | else { | |
1322 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
1323 | if (!svp || (value = *svp) == &sv_undef) | |
1324 | croak(no_aelem, (I32)LvTARGOFF(sv)); | |
1325 | } | |
1326 | } | |
3e3baf6d | 1327 | (void)SvREFCNT_inc(value); |
68dc0745 | 1328 | SvREFCNT_dec(LvTARG(sv)); |
1329 | LvTARG(sv) = value; | |
71be2cbc | 1330 | LvTARGLEN(sv) = 0; |
68dc0745 | 1331 | SvREFCNT_dec(mg->mg_obj); |
1332 | mg->mg_obj = Nullsv; | |
1333 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1334 | } |
1335 | ||
1336 | int | |
8ac85365 | 1337 | magic_setmglob(SV *sv, MAGIC *mg) |
93a17b20 | 1338 | { |
a0d0e21e | 1339 | mg->mg_len = -1; |
c6496cc7 | 1340 | SvSCREAM_off(sv); |
93a17b20 LW |
1341 | return 0; |
1342 | } | |
1343 | ||
1344 | int | |
8ac85365 | 1345 | magic_setbm(SV *sv, MAGIC *mg) |
79072805 | 1346 | { |
463ee0b2 | 1347 | sv_unmagic(sv, 'B'); |
79072805 LW |
1348 | SvVALID_off(sv); |
1349 | return 0; | |
1350 | } | |
1351 | ||
1352 | int | |
8ac85365 | 1353 | magic_setfm(SV *sv, MAGIC *mg) |
55497cff | 1354 | { |
1355 | sv_unmagic(sv, 'f'); | |
1356 | SvCOMPILED_off(sv); | |
1357 | return 0; | |
1358 | } | |
1359 | ||
1360 | int | |
8ac85365 | 1361 | magic_setuvar(SV *sv, MAGIC *mg) |
79072805 LW |
1362 | { |
1363 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1364 | ||
1365 | if (uf && uf->uf_set) | |
1366 | (*uf->uf_set)(uf->uf_index, sv); | |
1367 | return 0; | |
1368 | } | |
1369 | ||
c277df42 IZ |
1370 | int |
1371 | magic_freeregexp(SV *sv, MAGIC *mg) | |
1372 | { | |
1373 | regexp *re = (regexp *)mg->mg_obj; | |
1374 | ReREFCNT_dec(re); | |
1375 | return 0; | |
1376 | } | |
1377 | ||
7a4c00b4 | 1378 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1379 | int |
8ac85365 | 1380 | magic_setcollxfrm(SV *sv, MAGIC *mg) |
bbce6d69 | 1381 | { |
1382 | /* | |
1383 | * René Descartes said "I think not." | |
1384 | * and vanished with a faint plop. | |
1385 | */ | |
7a4c00b4 | 1386 | if (mg->mg_ptr) { |
1387 | Safefree(mg->mg_ptr); | |
1388 | mg->mg_ptr = NULL; | |
1389 | mg->mg_len = -1; | |
1390 | } | |
bbce6d69 | 1391 | return 0; |
1392 | } | |
7a4c00b4 | 1393 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1394 | |
1395 | int | |
8ac85365 | 1396 | magic_set(SV *sv, MAGIC *mg) |
79072805 | 1397 | { |
11343788 | 1398 | dTHR; |
79072805 LW |
1399 | register char *s; |
1400 | I32 i; | |
8990e307 | 1401 | STRLEN len; |
79072805 | 1402 | switch (*mg->mg_ptr) { |
748a9306 LW |
1403 | case '\001': /* ^A */ |
1404 | sv_setsv(bodytarget, sv); | |
1405 | break; | |
79072805 | 1406 | case '\004': /* ^D */ |
8990e307 | 1407 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1408 | DEBUG_x(dump_all()); |
1409 | break; | |
28f23441 | 1410 | case '\005': /* ^E */ |
1411 | #ifdef VMS | |
1412 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1413 | #else | |
22fae026 TM |
1414 | #ifdef WIN32 |
1415 | SetLastError( SvIV(sv) ); | |
1416 | #else | |
f86702cc | 1417 | /* will anyone ever use this? */ |
1418 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
28f23441 | 1419 | #endif |
22fae026 | 1420 | #endif |
28f23441 | 1421 | break; |
79072805 | 1422 | case '\006': /* ^F */ |
463ee0b2 | 1423 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1424 | break; |
a0d0e21e LW |
1425 | case '\010': /* ^H */ |
1426 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1427 | break; | |
79072805 LW |
1428 | case '\t': /* ^I */ |
1429 | if (inplace) | |
1430 | Safefree(inplace); | |
1431 | if (SvOK(sv)) | |
a0d0e21e | 1432 | inplace = savepv(SvPV(sv,na)); |
79072805 LW |
1433 | else |
1434 | inplace = Nullch; | |
1435 | break; | |
28f23441 | 1436 | case '\017': /* ^O */ |
1437 | if (osname) | |
1438 | Safefree(osname); | |
1439 | if (SvOK(sv)) | |
1440 | osname = savepv(SvPV(sv,na)); | |
1441 | else | |
1442 | osname = Nullch; | |
1443 | break; | |
79072805 | 1444 | case '\020': /* ^P */ |
84902520 | 1445 | perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1446 | break; |
1447 | case '\024': /* ^T */ | |
88e89b8a | 1448 | #ifdef BIG_TIME |
1449 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); | |
1450 | #else | |
85e6fe83 | 1451 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1452 | #endif |
79072805 LW |
1453 | break; |
1454 | case '\027': /* ^W */ | |
463ee0b2 | 1455 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1456 | break; |
1457 | case '.': | |
748a9306 LW |
1458 | if (localizing) { |
1459 | if (localizing == 1) | |
1460 | save_sptr((SV**)&last_in_gv); | |
1461 | } | |
88e89b8a | 1462 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e | 1463 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 LW |
1464 | break; |
1465 | case '^': | |
a0d0e21e LW |
1466 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1467 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1468 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1469 | break; |
1470 | case '~': | |
a0d0e21e LW |
1471 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1472 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1473 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1474 | break; |
1475 | case '=': | |
a0d0e21e | 1476 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1477 | break; |
1478 | case '-': | |
a0d0e21e LW |
1479 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1480 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) | |
1481 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; | |
79072805 LW |
1482 | break; |
1483 | case '%': | |
a0d0e21e | 1484 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1485 | break; |
1486 | case '|': | |
4b65379b CS |
1487 | { |
1488 | IO *io = GvIOp(defoutgv); | |
1489 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) | |
1490 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1491 | else { | |
1492 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1493 | PerlIO *ofp = IoOFP(io); | |
1494 | if (ofp) | |
1495 | (void)PerlIO_flush(ofp); | |
1496 | IoFLAGS(io) |= IOf_FLUSH; | |
1497 | } | |
1498 | } | |
79072805 LW |
1499 | } |
1500 | break; | |
1501 | case '*': | |
463ee0b2 | 1502 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1503 | multiline = (i != 0); |
1504 | break; | |
1505 | case '/': | |
c07a80fd | 1506 | SvREFCNT_dec(nrs); |
1507 | nrs = newSVsv(sv); | |
1508 | SvREFCNT_dec(rs); | |
1509 | rs = SvREFCNT_inc(nrs); | |
79072805 LW |
1510 | break; |
1511 | case '\\': | |
1512 | if (ors) | |
1513 | Safefree(ors); | |
e3c19b7b CS |
1514 | if (SvOK(sv) || SvGMAGICAL(sv)) |
1515 | ors = savepv(SvPV(sv,orslen)); | |
1516 | else { | |
1517 | ors = Nullch; | |
1518 | orslen = 0; | |
1519 | } | |
79072805 LW |
1520 | break; |
1521 | case ',': | |
1522 | if (ofs) | |
1523 | Safefree(ofs); | |
a0d0e21e | 1524 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 LW |
1525 | break; |
1526 | case '#': | |
1527 | if (ofmt) | |
1528 | Safefree(ofmt); | |
a0d0e21e | 1529 | ofmt = savepv(SvPV(sv,na)); |
79072805 LW |
1530 | break; |
1531 | case '[': | |
a0d0e21e | 1532 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1533 | break; |
1534 | case '?': | |
ff0cee69 | 1535 | #ifdef COMPLEX_STATUS |
1536 | if (localizing == 2) { | |
1537 | statusvalue = LvTARGOFF(sv); | |
1538 | statusvalue_vms = LvTARGLEN(sv); | |
1539 | } | |
1540 | else | |
1541 | #endif | |
1542 | #ifdef VMSISH_STATUS | |
1543 | if (VMSISH_STATUS) | |
1544 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1545 | else | |
1546 | #endif | |
1547 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1548 | break; |
1549 | case '!': | |
78987ded | 1550 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1551 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1552 | break; |
1553 | case '<': | |
463ee0b2 | 1554 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1555 | if (delaymagic) { |
1556 | delaymagic |= DM_RUID; | |
1557 | break; /* don't do magic till later */ | |
1558 | } | |
1559 | #ifdef HAS_SETRUID | |
85e6fe83 | 1560 | (void)setruid((Uid_t)uid); |
79072805 LW |
1561 | #else |
1562 | #ifdef HAS_SETREUID | |
85e6fe83 | 1563 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 | 1564 | #else |
85e6fe83 LW |
1565 | #ifdef HAS_SETRESUID |
1566 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); | |
79072805 LW |
1567 | #else |
1568 | if (uid == euid) /* special case $< = $> */ | |
1569 | (void)setuid(uid); | |
a0d0e21e LW |
1570 | else { |
1571 | uid = (I32)getuid(); | |
463ee0b2 | 1572 | croak("setruid() not implemented"); |
a0d0e21e | 1573 | } |
79072805 LW |
1574 | #endif |
1575 | #endif | |
85e6fe83 | 1576 | #endif |
748a9306 | 1577 | uid = (I32)getuid(); |
4633a7c4 | 1578 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1579 | break; |
1580 | case '>': | |
463ee0b2 | 1581 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1582 | if (delaymagic) { |
1583 | delaymagic |= DM_EUID; | |
1584 | break; /* don't do magic till later */ | |
1585 | } | |
1586 | #ifdef HAS_SETEUID | |
85e6fe83 | 1587 | (void)seteuid((Uid_t)euid); |
79072805 LW |
1588 | #else |
1589 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1590 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1591 | #else | |
1592 | #ifdef HAS_SETRESUID | |
1593 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); | |
79072805 LW |
1594 | #else |
1595 | if (euid == uid) /* special case $> = $< */ | |
1596 | setuid(euid); | |
a0d0e21e LW |
1597 | else { |
1598 | euid = (I32)geteuid(); | |
463ee0b2 | 1599 | croak("seteuid() not implemented"); |
a0d0e21e | 1600 | } |
79072805 LW |
1601 | #endif |
1602 | #endif | |
85e6fe83 | 1603 | #endif |
79072805 | 1604 | euid = (I32)geteuid(); |
4633a7c4 | 1605 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1606 | break; |
1607 | case '(': | |
463ee0b2 | 1608 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1609 | if (delaymagic) { |
1610 | delaymagic |= DM_RGID; | |
1611 | break; /* don't do magic till later */ | |
1612 | } | |
1613 | #ifdef HAS_SETRGID | |
85e6fe83 | 1614 | (void)setrgid((Gid_t)gid); |
79072805 LW |
1615 | #else |
1616 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1617 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1618 | #else | |
1619 | #ifdef HAS_SETRESGID | |
1620 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); | |
79072805 LW |
1621 | #else |
1622 | if (gid == egid) /* special case $( = $) */ | |
1623 | (void)setgid(gid); | |
748a9306 LW |
1624 | else { |
1625 | gid = (I32)getgid(); | |
463ee0b2 | 1626 | croak("setrgid() not implemented"); |
748a9306 | 1627 | } |
79072805 LW |
1628 | #endif |
1629 | #endif | |
85e6fe83 | 1630 | #endif |
79072805 | 1631 | gid = (I32)getgid(); |
4633a7c4 | 1632 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1633 | break; |
1634 | case ')': | |
5cd24f17 | 1635 | #ifdef HAS_SETGROUPS |
1636 | { | |
1637 | char *p = SvPV(sv, na); | |
1638 | Groups_t gary[NGROUPS]; | |
1639 | ||
1640 | SET_NUMERIC_STANDARD(); | |
1641 | while (isSPACE(*p)) | |
1642 | ++p; | |
1643 | egid = I_V(atof(p)); | |
1644 | for (i = 0; i < NGROUPS; ++i) { | |
1645 | while (*p && !isSPACE(*p)) | |
1646 | ++p; | |
1647 | while (isSPACE(*p)) | |
1648 | ++p; | |
1649 | if (!*p) | |
1650 | break; | |
1651 | gary[i] = I_V(atof(p)); | |
1652 | } | |
8cc95fdb | 1653 | if (i) |
1654 | (void)setgroups(i, gary); | |
5cd24f17 | 1655 | } |
1656 | #else /* HAS_SETGROUPS */ | |
463ee0b2 | 1657 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1658 | #endif /* HAS_SETGROUPS */ |
79072805 LW |
1659 | if (delaymagic) { |
1660 | delaymagic |= DM_EGID; | |
1661 | break; /* don't do magic till later */ | |
1662 | } | |
1663 | #ifdef HAS_SETEGID | |
85e6fe83 | 1664 | (void)setegid((Gid_t)egid); |
79072805 LW |
1665 | #else |
1666 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1667 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1668 | #else | |
1669 | #ifdef HAS_SETRESGID | |
1670 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); | |
79072805 LW |
1671 | #else |
1672 | if (egid == gid) /* special case $) = $( */ | |
1673 | (void)setgid(egid); | |
748a9306 LW |
1674 | else { |
1675 | egid = (I32)getegid(); | |
463ee0b2 | 1676 | croak("setegid() not implemented"); |
748a9306 | 1677 | } |
79072805 LW |
1678 | #endif |
1679 | #endif | |
85e6fe83 | 1680 | #endif |
79072805 | 1681 | egid = (I32)getegid(); |
4633a7c4 | 1682 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1683 | break; |
1684 | case ':': | |
a0d0e21e | 1685 | chopset = SvPV_force(sv,na); |
79072805 LW |
1686 | break; |
1687 | case '0': | |
1688 | if (!origalen) { | |
1689 | s = origargv[0]; | |
1690 | s += strlen(s); | |
1691 | /* See if all the arguments are contiguous in memory */ | |
1692 | for (i = 1; i < origargc; i++) { | |
fb73857a | 1693 | if (origargv[i] == s + 1 |
1694 | #ifdef OS2 | |
1695 | || origargv[i] == s + 2 | |
1696 | #endif | |
1697 | ) | |
79072805 | 1698 | s += strlen(++s); /* this one is ok too */ |
fb73857a | 1699 | else |
1700 | break; | |
79072805 | 1701 | } |
bbce6d69 | 1702 | /* can grab env area too? */ |
fb73857a | 1703 | if (origenviron && (origenviron[0] == s + 1 |
1704 | #ifdef OS2 | |
1705 | || (origenviron[0] == s + 9 && (s += 8)) | |
1706 | #endif | |
1707 | )) { | |
66b1d557 | 1708 | my_setenv("NoNe SuCh", Nullch); |
79072805 LW |
1709 | /* force copy of environment */ |
1710 | for (i = 0; origenviron[i]; i++) | |
1711 | if (origenviron[i] == s + 1) | |
1712 | s += strlen(++s); | |
fb73857a | 1713 | else |
1714 | break; | |
79072805 LW |
1715 | } |
1716 | origalen = s - origargv[0]; | |
1717 | } | |
a0d0e21e | 1718 | s = SvPV_force(sv,len); |
8990e307 | 1719 | i = len; |
79072805 LW |
1720 | if (i >= origalen) { |
1721 | i = origalen; | |
fb73857a | 1722 | /* don't allow system to limit $0 seen by script */ |
1723 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
79072805 | 1724 | Copy(s, origargv[0], i, char); |
fb73857a | 1725 | s = origargv[0]+i; |
1726 | *s = '\0'; | |
79072805 LW |
1727 | } |
1728 | else { | |
1729 | Copy(s, origargv[0], i, char); | |
1730 | s = origargv[0]+i; | |
1731 | *s++ = '\0'; | |
1732 | while (++i < origalen) | |
8990e307 LW |
1733 | *s++ = ' '; |
1734 | s = origargv[0]+i; | |
ed6116ce | 1735 | for (i = 1; i < origargc; i++) |
8990e307 | 1736 | origargv[i] = Nullch; |
79072805 LW |
1737 | } |
1738 | break; | |
a863c7d1 MB |
1739 | #ifdef USE_THREADS |
1740 | case '@': | |
38a03e6e | 1741 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
1742 | break; |
1743 | #endif /* USE_THREADS */ | |
79072805 LW |
1744 | } |
1745 | return 0; | |
1746 | } | |
1747 | ||
f93b4edd MB |
1748 | #ifdef USE_THREADS |
1749 | int | |
8ac85365 | 1750 | magic_mutexfree(SV *sv, MAGIC *mg) |
f93b4edd MB |
1751 | { |
1752 | dTHR; | |
bc1f4c86 MB |
1753 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
1754 | (unsigned long)thr, (unsigned long)sv);) | |
f93b4edd MB |
1755 | if (MgOWNER(mg)) |
1756 | croak("panic: magic_mutexfree"); | |
1757 | MUTEX_DESTROY(MgMUTEXP(mg)); | |
1758 | COND_DESTROY(MgCONDP(mg)); | |
e55aaa0e | 1759 | SvREFCNT_dec(sv); |
f93b4edd MB |
1760 | return 0; |
1761 | } | |
1762 | #endif /* USE_THREADS */ | |
1763 | ||
79072805 | 1764 | I32 |
8ac85365 | 1765 | whichsig(char *sig) |
79072805 LW |
1766 | { |
1767 | register char **sigv; | |
1768 | ||
1769 | for (sigv = sig_name+1; *sigv; sigv++) | |
1770 | if (strEQ(sig,*sigv)) | |
8e07c86e | 1771 | return sig_num[sigv - sig_name]; |
79072805 LW |
1772 | #ifdef SIGCLD |
1773 | if (strEQ(sig,"CHLD")) | |
1774 | return SIGCLD; | |
1775 | #endif | |
1776 | #ifdef SIGCHLD | |
1777 | if (strEQ(sig,"CLD")) | |
1778 | return SIGCHLD; | |
1779 | #endif | |
1780 | return 0; | |
1781 | } | |
1782 | ||
84902520 TB |
1783 | static SV* sig_sv; |
1784 | ||
1785 | static void | |
8ac85365 | 1786 | unwind_handler_stack(void *p) |
84902520 | 1787 | { |
ff26ac79 | 1788 | dTHR; |
84902520 TB |
1789 | U32 flags = *(U32*)p; |
1790 | ||
1791 | if (flags & 1) | |
1792 | savestack_ix -= 5; /* Unprotect save in progress. */ | |
1793 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
1794 | if (flags & 64) | |
1795 | SvREFCNT_dec(sig_sv); | |
1796 | } | |
1797 | ||
ecfc5424 | 1798 | Signal_t |
8ac85365 | 1799 | sighandler(int sig) |
79072805 LW |
1800 | { |
1801 | dSP; | |
00d579c5 | 1802 | GV *gv = Nullgv; |
a0d0e21e | 1803 | HV *st; |
84902520 | 1804 | SV *sv, *tSv = Sv; |
00d579c5 | 1805 | CV *cv = Nullcv; |
79072805 | 1806 | AV *oldstack; |
84902520 TB |
1807 | OP *myop = op; |
1808 | U32 flags = 0; | |
1809 | I32 o_save_i = savestack_ix, type; | |
c09156bb | 1810 | PERL_CONTEXT *cx; |
84902520 TB |
1811 | XPV *tXpv = Xpv; |
1812 | ||
1813 | if (savestack_ix + 15 <= savestack_max) | |
1814 | flags |= 1; | |
1815 | if (cxstack_ix < cxstack_max - 2) | |
1816 | flags |= 2; | |
1817 | if (markstack_ptr < markstack_max - 2) | |
1818 | flags |= 4; | |
1819 | if (retstack_ix < retstack_max - 2) | |
1820 | flags |= 8; | |
1821 | if (scopestack_ix < scopestack_max - 3) | |
1822 | flags |= 16; | |
1823 | ||
1824 | if (flags & 2) { /* POPBLOCK may decrease cxstack too early. */ | |
1825 | cxstack_ix++; /* Protect from overwrite. */ | |
1826 | cx = &cxstack[cxstack_ix]; | |
1827 | type = cx->cx_type; /* Can be during partial write. */ | |
1828 | cx->cx_type = CXt_NULL; /* Make it safe for unwind. */ | |
1829 | } | |
ff0cee69 | 1830 | if (!psig_ptr[sig]) |
1831 | die("Signal SIG%s received, but no signal handler set.\n", | |
1832 | sig_name[sig]); | |
1833 | ||
84902520 TB |
1834 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
1835 | infinity, so we fix 4 (in fact 5): */ | |
1836 | if (flags & 1) { | |
1837 | savestack_ix += 5; /* Protect save in progress. */ | |
1838 | o_save_i = savestack_ix; | |
1839 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); | |
1840 | } | |
1841 | if (flags & 4) | |
1842 | markstack_ptr++; /* Protect mark. */ | |
1843 | if (flags & 8) { | |
1844 | retstack_ix++; | |
1845 | retstack[retstack_ix] = NULL; | |
1846 | } | |
1847 | if (flags & 16) | |
1848 | scopestack_ix += 1; | |
1849 | /* sv_2cv is too complicated, try a simpler variant first: */ | |
1850 | if (!SvROK(psig_ptr[sig]) || !(cv = (CV*)SvRV(psig_ptr[sig])) | |
1851 | || SvTYPE(cv) != SVt_PVCV) | |
1852 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); | |
1853 | ||
a0d0e21e | 1854 | if (!cv || !CvROOT(cv)) { |
79072805 LW |
1855 | if (dowarn) |
1856 | warn("SIG%s handler \"%s\" not defined.\n", | |
00d579c5 GS |
1857 | sig_name[sig], (gv ? GvENAME(gv) |
1858 | : ((cv && CvGV(cv)) | |
1859 | ? GvENAME(CvGV(cv)) | |
1860 | : "__ANON__"))); | |
1861 | goto cleanup; | |
79072805 LW |
1862 | } |
1863 | ||
88e89b8a | 1864 | oldstack = curstack; |
1865 | if (curstack != signalstack) | |
93965878 | 1866 | AvFILLp(signalstack) = 0; |
88e89b8a | 1867 | SWITCHSTACK(curstack, signalstack); |
79072805 | 1868 | |
84902520 | 1869 | if(psig_name[sig]) { |
88e89b8a | 1870 | sv = SvREFCNT_inc(psig_name[sig]); |
84902520 TB |
1871 | flags |= 64; |
1872 | sig_sv = sv; | |
1873 | } else { | |
ff0cee69 | 1874 | sv = sv_newmortal(); |
1875 | sv_setpv(sv,sig_name[sig]); | |
88e89b8a | 1876 | } |
924508f0 | 1877 | PUSHMARK(SP); |
79072805 | 1878 | PUSHs(sv); |
79072805 | 1879 | PUTBACK; |
a0d0e21e LW |
1880 | |
1881 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 LW |
1882 | |
1883 | SWITCHSTACK(signalstack, oldstack); | |
00d579c5 | 1884 | cleanup: |
84902520 TB |
1885 | if (flags & 1) |
1886 | savestack_ix -= 8; /* Unprotect save in progress. */ | |
1887 | if (flags & 2) { | |
1888 | cxstack[cxstack_ix].cx_type = type; | |
1889 | cxstack_ix -= 1; | |
1890 | } | |
1891 | if (flags & 4) | |
1892 | markstack_ptr--; | |
1893 | if (flags & 8) | |
1894 | retstack_ix--; | |
1895 | if (flags & 16) | |
1896 | scopestack_ix -= 1; | |
1897 | if (flags & 64) | |
1898 | SvREFCNT_dec(sv); | |
1899 | op = myop; /* Apparently not needed... */ | |
1900 | ||
1901 | Sv = tSv; /* Restore global temporaries. */ | |
1902 | Xpv = tXpv; | |
79072805 LW |
1903 | return; |
1904 | } | |
4e35701f NIS |
1905 | |
1906 |