Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
9607fc9c | 3 | * Copyright (c) 1991-1997, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "Sam sat on the ground and put his head in his hands. 'I wish I had never | |
12 | * come here, and I don't want to see no more magic,' he said, and fell silent." | |
79072805 LW |
13 | */ |
14 | ||
15 | #include "EXTERN.h" | |
16 | #include "perl.h" | |
17 | ||
e6d9441c | 18 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e LW |
19 | #ifdef I_UNISTD |
20 | # include <unistd.h> | |
21 | #endif | |
a0d0e21e | 22 | |
5cd24f17 | 23 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
24 | # ifndef NGROUPS |
25 | # define NGROUPS 32 | |
26 | # endif | |
27 | #endif | |
28 | ||
c07a80fd | 29 | /* |
30 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
31 | */ | |
32 | ||
76e3520e | 33 | #ifdef PERL_OBJECT |
76e3520e | 34 | |
76e3520e GS |
35 | #define VTBL this->*vtbl |
36 | ||
37 | #else | |
c07a80fd | 38 | struct magic_state { |
39 | SV* mgs_sv; | |
40 | U32 mgs_flags; | |
41 | }; | |
42 | typedef struct magic_state MGS; | |
43 | ||
44 | static void restore_magic _((void *p)); | |
76e3520e | 45 | #define VTBL *vtbl |
c07a80fd | 46 | |
76e3520e GS |
47 | #endif |
48 | ||
49 | STATIC void | |
8ac85365 | 50 | save_magic(MGS *mgs, SV *sv) |
c07a80fd | 51 | { |
c07a80fd | 52 | assert(SvMAGICAL(sv)); |
53 | ||
c07a80fd | 54 | mgs->mgs_sv = sv; |
55 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
565764a8 | 56 | SAVEDESTRUCTOR(restore_magic, mgs); |
c07a80fd | 57 | |
58 | SvMAGICAL_off(sv); | |
59 | SvREADONLY_off(sv); | |
60 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
c07a80fd | 61 | } |
62 | ||
76e3520e | 63 | STATIC void |
8ac85365 | 64 | restore_magic(void *p) |
c07a80fd | 65 | { |
48e43a1c | 66 | MGS* mgs = (MGS*)p; |
c07a80fd | 67 | SV* sv = mgs->mgs_sv; |
68 | ||
69 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
70 | { | |
71 | if (mgs->mgs_flags) | |
72 | SvFLAGS(sv) |= mgs->mgs_flags; | |
73 | else | |
74 | mg_magical(sv); | |
75 | if (SvGMAGICAL(sv)) | |
76 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
77 | } | |
c07a80fd | 78 | } |
79 | ||
8990e307 | 80 | void |
8ac85365 | 81 | mg_magical(SV *sv) |
8990e307 LW |
82 | { |
83 | MAGIC* mg; | |
84 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
85 | MGVTBL* vtbl = mg->mg_virtual; | |
86 | if (vtbl) { | |
76e3520e | 87 | if ((vtbl->svt_get != NULL) && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
88 | SvGMAGICAL_on(sv); |
89 | if (vtbl->svt_set) | |
90 | SvSMAGICAL_on(sv); | |
76e3520e | 91 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || (vtbl->svt_clear != NULL)) |
8990e307 LW |
92 | SvRMAGICAL_on(sv); |
93 | } | |
94 | } | |
95 | } | |
96 | ||
79072805 | 97 | int |
8ac85365 | 98 | mg_get(SV *sv) |
79072805 | 99 | { |
48e43a1c | 100 | MGS mgs; |
79072805 | 101 | MAGIC* mg; |
c6496cc7 | 102 | MAGIC** mgp; |
760ac839 | 103 | int mgp_valid = 0; |
463ee0b2 | 104 | |
c07a80fd | 105 | ENTER; |
48e43a1c | 106 | save_magic(&mgs, sv); |
463ee0b2 | 107 | |
c6496cc7 | 108 | mgp = &SvMAGIC(sv); |
109 | while ((mg = *mgp) != 0) { | |
79072805 | 110 | MGVTBL* vtbl = mg->mg_virtual; |
76e3520e GS |
111 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && (vtbl->svt_get != NULL)) { |
112 | (VTBL->svt_get)(sv, mg); | |
c6496cc7 | 113 | /* Ignore this magic if it's been deleted */ |
48e43a1c CS |
114 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
115 | (mg->mg_flags & MGf_GSKIP)) | |
116 | mgs.mgs_flags = 0; | |
a0d0e21e | 117 | } |
c6496cc7 | 118 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 119 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 120 | mgp = &mg->mg_moremagic; |
760ac839 LW |
121 | mgp_valid = 1; |
122 | } | |
123 | else | |
124 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 125 | } |
463ee0b2 | 126 | |
c07a80fd | 127 | LEAVE; |
79072805 LW |
128 | return 0; |
129 | } | |
130 | ||
131 | int | |
8ac85365 | 132 | mg_set(SV *sv) |
79072805 | 133 | { |
48e43a1c | 134 | MGS mgs; |
79072805 | 135 | MAGIC* mg; |
463ee0b2 LW |
136 | MAGIC* nextmg; |
137 | ||
c07a80fd | 138 | ENTER; |
48e43a1c | 139 | save_magic(&mgs, sv); |
463ee0b2 LW |
140 | |
141 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 142 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 143 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
144 | if (mg->mg_flags & MGf_GSKIP) { |
145 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
48e43a1c | 146 | mgs.mgs_flags = 0; |
a0d0e21e | 147 | } |
76e3520e GS |
148 | if (vtbl && (vtbl->svt_set != NULL)) |
149 | (VTBL->svt_set)(sv, mg); | |
79072805 | 150 | } |
463ee0b2 | 151 | |
c07a80fd | 152 | LEAVE; |
79072805 LW |
153 | return 0; |
154 | } | |
155 | ||
156 | U32 | |
565764a8 | 157 | mg_length(SV *sv) |
79072805 LW |
158 | { |
159 | MAGIC* mg; | |
748a9306 | 160 | char *junk; |
463ee0b2 | 161 | STRLEN len; |
463ee0b2 | 162 | |
79072805 LW |
163 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
164 | MGVTBL* vtbl = mg->mg_virtual; | |
76e3520e | 165 | if (vtbl && (vtbl->svt_len != NULL)) { |
48e43a1c CS |
166 | MGS mgs; |
167 | ||
c07a80fd | 168 | ENTER; |
48e43a1c | 169 | save_magic(&mgs, sv); |
a0d0e21e | 170 | /* omit MGf_GSKIP -- not changed here */ |
76e3520e | 171 | len = (VTBL->svt_len)(sv, mg); |
c07a80fd | 172 | LEAVE; |
85e6fe83 LW |
173 | return len; |
174 | } | |
175 | } | |
176 | ||
748a9306 | 177 | junk = SvPV(sv, len); |
463ee0b2 | 178 | return len; |
79072805 LW |
179 | } |
180 | ||
93965878 NIS |
181 | I32 |
182 | mg_size(SV *sv) | |
183 | { | |
184 | MAGIC* mg; | |
185 | I32 len; | |
186 | ||
187 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
188 | MGVTBL* vtbl = mg->mg_virtual; | |
565764a8 | 189 | if (vtbl && (vtbl->svt_len != NULL)) { |
93965878 NIS |
190 | MGS mgs; |
191 | ENTER; | |
192 | /* omit MGf_GSKIP -- not changed here */ | |
565764a8 | 193 | len = (VTBL->svt_len)(sv, mg); |
93965878 NIS |
194 | LEAVE; |
195 | return len; | |
196 | } | |
197 | } | |
198 | ||
199 | switch(SvTYPE(sv)) { | |
200 | case SVt_PVAV: | |
201 | len = AvFILLp((AV *) sv); /* Fallback to non-tied array */ | |
202 | return len; | |
203 | case SVt_PVHV: | |
204 | /* FIXME */ | |
205 | default: | |
206 | croak("Size magic not implemented"); | |
207 | break; | |
208 | } | |
209 | return 0; | |
210 | } | |
211 | ||
79072805 | 212 | int |
8ac85365 | 213 | mg_clear(SV *sv) |
79072805 | 214 | { |
48e43a1c | 215 | MGS mgs; |
79072805 | 216 | MAGIC* mg; |
463ee0b2 | 217 | |
c07a80fd | 218 | ENTER; |
48e43a1c | 219 | save_magic(&mgs, sv); |
463ee0b2 | 220 | |
79072805 LW |
221 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
222 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
223 | /* omit GSKIP -- never set here */ |
224 | ||
76e3520e GS |
225 | if (vtbl && (vtbl->svt_clear != NULL)) |
226 | (VTBL->svt_clear)(sv, mg); | |
79072805 | 227 | } |
463ee0b2 | 228 | |
c07a80fd | 229 | LEAVE; |
79072805 LW |
230 | return 0; |
231 | } | |
232 | ||
93a17b20 | 233 | MAGIC* |
8ac85365 | 234 | mg_find(SV *sv, int type) |
93a17b20 LW |
235 | { |
236 | MAGIC* mg; | |
93a17b20 LW |
237 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
238 | if (mg->mg_type == type) | |
239 | return mg; | |
240 | } | |
241 | return 0; | |
242 | } | |
243 | ||
79072805 | 244 | int |
8ac85365 | 245 | mg_copy(SV *sv, SV *nsv, char *key, I32 klen) |
79072805 | 246 | { |
463ee0b2 | 247 | int count = 0; |
79072805 | 248 | MAGIC* mg; |
463ee0b2 LW |
249 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
250 | if (isUPPER(mg->mg_type)) { | |
a0d0e21e | 251 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 252 | count++; |
79072805 | 253 | } |
79072805 | 254 | } |
463ee0b2 | 255 | return count; |
79072805 LW |
256 | } |
257 | ||
258 | int | |
8ac85365 | 259 | mg_free(SV *sv) |
79072805 LW |
260 | { |
261 | MAGIC* mg; | |
262 | MAGIC* moremagic; | |
263 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
264 | MGVTBL* vtbl = mg->mg_virtual; | |
265 | moremagic = mg->mg_moremagic; | |
76e3520e GS |
266 | if (vtbl && (vtbl->svt_free != NULL)) |
267 | (VTBL->svt_free)(sv, mg); | |
93a17b20 | 268 | if (mg->mg_ptr && mg->mg_type != 'g') |
565764a8 | 269 | if (mg->mg_len >= 0) |
88e89b8a | 270 | Safefree(mg->mg_ptr); |
565764a8 | 271 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 272 | SvREFCNT_dec((SV*)mg->mg_ptr); |
85e6fe83 | 273 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 274 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
275 | Safefree(mg); |
276 | } | |
277 | SvMAGIC(sv) = 0; | |
278 | return 0; | |
279 | } | |
280 | ||
281 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
282 | #include <signal.h> | |
283 | #endif | |
284 | ||
93a17b20 | 285 | U32 |
8ac85365 | 286 | magic_len(SV *sv, MAGIC *mg) |
93a17b20 | 287 | { |
a863c7d1 | 288 | dTHR; |
93a17b20 LW |
289 | register I32 paren; |
290 | register char *s; | |
291 | register I32 i; | |
d9f97599 | 292 | register REGEXP *rx; |
748a9306 | 293 | char *t; |
93a17b20 LW |
294 | |
295 | switch (*mg->mg_ptr) { | |
296 | case '1': case '2': case '3': case '4': | |
297 | case '5': case '6': case '7': case '8': case '9': case '&': | |
d9f97599 | 298 | if (curpm && (rx = curpm->op_pmregexp)) { |
93a17b20 LW |
299 | paren = atoi(mg->mg_ptr); |
300 | getparen: | |
d9f97599 GS |
301 | if (paren <= rx->nparens && |
302 | (s = rx->startp[paren]) && | |
303 | (t = rx->endp[paren])) | |
bbce6d69 | 304 | { |
748a9306 | 305 | i = t - s; |
71be2cbc | 306 | if (i >= 0) |
93a17b20 | 307 | return i; |
93a17b20 | 308 | } |
93a17b20 | 309 | } |
748a9306 | 310 | return 0; |
93a17b20 | 311 | case '+': |
d9f97599 GS |
312 | if (curpm && (rx = curpm->op_pmregexp)) { |
313 | paren = rx->lastparen; | |
13f57bf8 CS |
314 | if (paren) |
315 | goto getparen; | |
93a17b20 | 316 | } |
748a9306 | 317 | return 0; |
93a17b20 | 318 | case '`': |
d9f97599 GS |
319 | if (curpm && (rx = curpm->op_pmregexp)) { |
320 | if ((s = rx->subbeg) && rx->startp[0]) { | |
321 | i = rx->startp[0] - s; | |
71be2cbc | 322 | if (i >= 0) |
93a17b20 | 323 | return i; |
93a17b20 | 324 | } |
93a17b20 | 325 | } |
748a9306 | 326 | return 0; |
93a17b20 | 327 | case '\'': |
d9f97599 GS |
328 | if (curpm && (rx = curpm->op_pmregexp)) { |
329 | if (rx->subend && (s = rx->endp[0])) { | |
330 | i = rx->subend - s; | |
13f57bf8 | 331 | if (i >= 0) |
5cd24f17 | 332 | return i; |
93a17b20 | 333 | } |
93a17b20 | 334 | } |
748a9306 | 335 | return 0; |
93a17b20 LW |
336 | case ',': |
337 | return (STRLEN)ofslen; | |
338 | case '\\': | |
339 | return (STRLEN)orslen; | |
340 | } | |
341 | magic_get(sv,mg); | |
342 | if (!SvPOK(sv) && SvNIOK(sv)) | |
463ee0b2 | 343 | sv_2pv(sv, &na); |
93a17b20 LW |
344 | if (SvPOK(sv)) |
345 | return SvCUR(sv); | |
346 | return 0; | |
347 | } | |
348 | ||
79072805 | 349 | int |
8ac85365 | 350 | magic_get(SV *sv, MAGIC *mg) |
79072805 | 351 | { |
a863c7d1 | 352 | dTHR; |
79072805 LW |
353 | register I32 paren; |
354 | register char *s; | |
355 | register I32 i; | |
d9f97599 | 356 | register REGEXP *rx; |
748a9306 | 357 | char *t; |
79072805 LW |
358 | |
359 | switch (*mg->mg_ptr) { | |
748a9306 LW |
360 | case '\001': /* ^A */ |
361 | sv_setsv(sv, bodytarget); | |
362 | break; | |
79072805 | 363 | case '\004': /* ^D */ |
188ea221 | 364 | sv_setiv(sv, (IV)(debug & 32767)); |
79072805 | 365 | break; |
28f23441 | 366 | case '\005': /* ^E */ |
367 | #ifdef VMS | |
368 | { | |
369 | # include <descrip.h> | |
370 | # include <starlet.h> | |
371 | char msg[255]; | |
372 | $DESCRIPTOR(msgdsc,msg); | |
946ec16e | 373 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 | 374 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
375 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
376 | else | |
377 | sv_setpv(sv,""); | |
378 | } | |
379 | #else | |
88e89b8a | 380 | #ifdef OS2 |
fb73857a | 381 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
382 | sv_setnv(sv, (double)errno); | |
383 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
384 | } else { | |
385 | if (errno != errno_isOS2) | |
386 | Perl_rc = _syserrno(); | |
387 | sv_setnv(sv, (double)Perl_rc); | |
388 | sv_setpv(sv, os2error(Perl_rc)); | |
389 | } | |
88e89b8a | 390 | #else |
22fae026 TM |
391 | #ifdef WIN32 |
392 | { | |
393 | DWORD dwErr = GetLastError(); | |
394 | sv_setnv(sv, (double)dwErr); | |
395 | if (dwErr) | |
76e3520e GS |
396 | { |
397 | #ifdef PERL_OBJECT | |
398 | char *sMsg; | |
399 | DWORD dwLen; | |
400 | PerlProc_GetSysMsg(sMsg, dwLen, dwErr); | |
401 | sv_setpvn(sv, sMsg, dwLen); | |
402 | PerlProc_FreeBuf(sMsg); | |
403 | #else | |
22fae026 | 404 | win32_str_os_error(sv, dwErr); |
76e3520e GS |
405 | #endif |
406 | } | |
22fae026 TM |
407 | else |
408 | sv_setpv(sv, ""); | |
409 | SetLastError(dwErr); | |
410 | } | |
411 | #else | |
946ec16e | 412 | sv_setnv(sv, (double)errno); |
28f23441 | 413 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
414 | #endif | |
88e89b8a | 415 | #endif |
22fae026 | 416 | #endif |
946ec16e | 417 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 418 | break; |
79072805 | 419 | case '\006': /* ^F */ |
188ea221 | 420 | sv_setiv(sv, (IV)maxsysfd); |
79072805 | 421 | break; |
a0d0e21e | 422 | case '\010': /* ^H */ |
188ea221 | 423 | sv_setiv(sv, (IV)hints); |
a0d0e21e | 424 | break; |
79072805 LW |
425 | case '\t': /* ^I */ |
426 | if (inplace) | |
427 | sv_setpv(sv, inplace); | |
428 | else | |
188ea221 | 429 | sv_setsv(sv, &sv_undef); |
79072805 | 430 | break; |
28f23441 | 431 | case '\017': /* ^O */ |
188ea221 | 432 | sv_setpv(sv, osname); |
28f23441 | 433 | break; |
79072805 | 434 | case '\020': /* ^P */ |
188ea221 | 435 | sv_setiv(sv, (IV)perldb); |
79072805 | 436 | break; |
fb73857a | 437 | case '\023': /* ^S */ |
d58bf5aa MB |
438 | { |
439 | dTHR; | |
440 | if (lex_state != LEX_NOTPARSING) | |
441 | SvOK_off(sv); | |
442 | else if (in_eval) | |
443 | sv_setiv(sv, 1); | |
444 | else | |
445 | sv_setiv(sv, 0); | |
446 | } | |
fb73857a | 447 | break; |
79072805 | 448 | case '\024': /* ^T */ |
88e89b8a | 449 | #ifdef BIG_TIME |
188ea221 | 450 | sv_setnv(sv, basetime); |
88e89b8a | 451 | #else |
188ea221 | 452 | sv_setiv(sv, (IV)basetime); |
88e89b8a | 453 | #endif |
79072805 LW |
454 | break; |
455 | case '\027': /* ^W */ | |
188ea221 | 456 | sv_setiv(sv, (IV)dowarn); |
79072805 LW |
457 | break; |
458 | case '1': case '2': case '3': case '4': | |
459 | case '5': case '6': case '7': case '8': case '9': case '&': | |
d9f97599 | 460 | if (curpm && (rx = curpm->op_pmregexp)) { |
a863c7d1 MB |
461 | /* |
462 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
463 | * XXX Does the new way break anything? | |
464 | */ | |
465 | paren = atoi(mg->mg_ptr); | |
79072805 | 466 | getparen: |
d9f97599 GS |
467 | if (paren <= rx->nparens && |
468 | (s = rx->startp[paren]) && | |
469 | (t = rx->endp[paren])) | |
bbce6d69 | 470 | { |
748a9306 | 471 | i = t - s; |
13f57bf8 | 472 | getrx: |
748a9306 | 473 | if (i >= 0) { |
13f57bf8 CS |
474 | bool was_tainted; |
475 | if (tainting) { | |
476 | was_tainted = tainted; | |
477 | tainted = FALSE; | |
478 | } | |
79072805 | 479 | sv_setpvn(sv,s,i); |
13f57bf8 | 480 | if (tainting) |
b3eb6a9b | 481 | tainted = (was_tainted || RX_MATCH_TAINTED(rx)); |
748a9306 LW |
482 | break; |
483 | } | |
79072805 | 484 | } |
79072805 | 485 | } |
748a9306 | 486 | sv_setsv(sv,&sv_undef); |
79072805 LW |
487 | break; |
488 | case '+': | |
d9f97599 GS |
489 | if (curpm && (rx = curpm->op_pmregexp)) { |
490 | paren = rx->lastparen; | |
a0d0e21e LW |
491 | if (paren) |
492 | goto getparen; | |
79072805 | 493 | } |
748a9306 | 494 | sv_setsv(sv,&sv_undef); |
79072805 LW |
495 | break; |
496 | case '`': | |
d9f97599 GS |
497 | if (curpm && (rx = curpm->op_pmregexp)) { |
498 | if ((s = rx->subbeg) && rx->startp[0]) { | |
499 | i = rx->startp[0] - s; | |
13f57bf8 | 500 | goto getrx; |
79072805 | 501 | } |
79072805 | 502 | } |
748a9306 | 503 | sv_setsv(sv,&sv_undef); |
79072805 LW |
504 | break; |
505 | case '\'': | |
d9f97599 GS |
506 | if (curpm && (rx = curpm->op_pmregexp)) { |
507 | if (rx->subend && (s = rx->endp[0])) { | |
508 | i = rx->subend - s; | |
13f57bf8 | 509 | goto getrx; |
79072805 | 510 | } |
79072805 | 511 | } |
748a9306 | 512 | sv_setsv(sv,&sv_undef); |
79072805 LW |
513 | break; |
514 | case '.': | |
515 | #ifndef lint | |
a0d0e21e | 516 | if (GvIO(last_in_gv)) { |
188ea221 | 517 | sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv))); |
79072805 LW |
518 | } |
519 | #endif | |
520 | break; | |
521 | case '?': | |
809a5acc MB |
522 | { |
523 | dTHR; | |
524 | sv_setiv(sv, (IV)STATUS_CURRENT); | |
ff0cee69 | 525 | #ifdef COMPLEX_STATUS |
809a5acc MB |
526 | LvTARGOFF(sv) = statusvalue; |
527 | LvTARGLEN(sv) = statusvalue_vms; | |
ff0cee69 | 528 | #endif |
809a5acc | 529 | } |
79072805 LW |
530 | break; |
531 | case '^': | |
a0d0e21e | 532 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 LW |
533 | if (s) |
534 | sv_setpv(sv,s); | |
535 | else { | |
536 | sv_setpv(sv,GvENAME(defoutgv)); | |
537 | sv_catpv(sv,"_TOP"); | |
538 | } | |
539 | break; | |
540 | case '~': | |
a0d0e21e | 541 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 LW |
542 | if (!s) |
543 | s = GvENAME(defoutgv); | |
544 | sv_setpv(sv,s); | |
545 | break; | |
546 | #ifndef lint | |
547 | case '=': | |
188ea221 | 548 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 LW |
549 | break; |
550 | case '-': | |
188ea221 | 551 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 LW |
552 | break; |
553 | case '%': | |
188ea221 | 554 | sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv))); |
79072805 LW |
555 | break; |
556 | #endif | |
557 | case ':': | |
558 | break; | |
559 | case '/': | |
560 | break; | |
561 | case '[': | |
0f15f207 | 562 | WITH_THR(sv_setiv(sv, (IV)curcop->cop_arybase)); |
79072805 LW |
563 | break; |
564 | case '|': | |
188ea221 | 565 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
566 | break; |
567 | case ',': | |
568 | sv_setpvn(sv,ofs,ofslen); | |
569 | break; | |
570 | case '\\': | |
571 | sv_setpvn(sv,ors,orslen); | |
572 | break; | |
573 | case '#': | |
574 | sv_setpv(sv,ofmt); | |
575 | break; | |
576 | case '!': | |
a5f75d66 | 577 | #ifdef VMS |
946ec16e | 578 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 579 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 580 | #else |
88e89b8a | 581 | { |
582 | int saveerrno = errno; | |
946ec16e | 583 | sv_setnv(sv, (double)errno); |
88e89b8a | 584 | #ifdef OS2 |
585 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
586 | else | |
a5f75d66 | 587 | #endif |
2304df62 | 588 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 589 | errno = saveerrno; |
590 | } | |
591 | #endif | |
946ec16e | 592 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
593 | break; |
594 | case '<': | |
188ea221 | 595 | sv_setiv(sv, (IV)uid); |
79072805 LW |
596 | break; |
597 | case '>': | |
188ea221 | 598 | sv_setiv(sv, (IV)euid); |
79072805 LW |
599 | break; |
600 | case '(': | |
188ea221 | 601 | sv_setiv(sv, (IV)gid); |
fc36a67e | 602 | sv_setpvf(sv, "%Vd", (IV)gid); |
79072805 LW |
603 | goto add_groups; |
604 | case ')': | |
188ea221 | 605 | sv_setiv(sv, (IV)egid); |
fc36a67e | 606 | sv_setpvf(sv, "%Vd", (IV)egid); |
79072805 | 607 | add_groups: |
79072805 | 608 | #ifdef HAS_GETGROUPS |
79072805 | 609 | { |
a0d0e21e | 610 | Groups_t gary[NGROUPS]; |
79072805 | 611 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 612 | while (--i >= 0) |
fc36a67e | 613 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 LW |
614 | } |
615 | #endif | |
29355cf7 | 616 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
617 | break; |
618 | case '*': | |
619 | break; | |
620 | case '0': | |
621 | break; | |
a863c7d1 MB |
622 | #ifdef USE_THREADS |
623 | case '@': | |
38a03e6e | 624 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
625 | break; |
626 | #endif /* USE_THREADS */ | |
79072805 | 627 | } |
a0d0e21e | 628 | return 0; |
79072805 LW |
629 | } |
630 | ||
631 | int | |
8ac85365 | 632 | magic_getuvar(SV *sv, MAGIC *mg) |
79072805 LW |
633 | { |
634 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
635 | ||
636 | if (uf && uf->uf_val) | |
637 | (*uf->uf_val)(uf->uf_index, sv); | |
638 | return 0; | |
639 | } | |
640 | ||
641 | int | |
8ac85365 | 642 | magic_setenv(SV *sv, MAGIC *mg) |
79072805 LW |
643 | { |
644 | register char *s; | |
88e89b8a | 645 | char *ptr; |
5aabfad6 | 646 | STRLEN len, klen; |
a0d0e21e | 647 | I32 i; |
1e422769 | 648 | |
a0d0e21e | 649 | s = SvPV(sv,len); |
5aabfad6 | 650 | ptr = MgPV(mg,klen); |
88e89b8a | 651 | my_setenv(ptr, s); |
1e422769 | 652 | |
a0d0e21e LW |
653 | #ifdef DYNAMIC_ENV_FETCH |
654 | /* We just undefd an environment var. Is a replacement */ | |
655 | /* waiting in the wings? */ | |
656 | if (!len) { | |
5aabfad6 | 657 | SV **valp; |
658 | if ((valp = hv_fetch(GvHVn(envgv), ptr, klen, FALSE))) | |
659 | s = SvPV(*valp, len); | |
a0d0e21e LW |
660 | } |
661 | #endif | |
1e422769 | 662 | |
39e571d4 | 663 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
664 | /* And you'll never guess what the dog had */ |
665 | /* in its mouth... */ | |
463ee0b2 | 666 | if (tainting) { |
1e422769 | 667 | MgTAINTEDDIR_off(mg); |
668 | #ifdef VMS | |
5aabfad6 | 669 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 670 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
671 | struct stat sbuf; | |
672 | int i = 0, j = 0; | |
673 | ||
674 | do { /* DCL$PATH may be a search list */ | |
675 | while (1) { /* as may dev portion of any element */ | |
676 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
677 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
678 | cando_by_name(S_IWUSR,0,elt) ) { | |
679 | MgTAINTEDDIR_on(mg); | |
680 | return 0; | |
681 | } | |
682 | } | |
683 | if ((cp = strchr(elt, ':')) != Nullch) | |
684 | *cp = '\0'; | |
685 | if (my_trnlnm(elt, eltbuf, j++)) | |
686 | elt = eltbuf; | |
687 | else | |
688 | break; | |
689 | } | |
690 | j = 0; | |
691 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
692 | } | |
693 | #endif /* VMS */ | |
5aabfad6 | 694 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 695 | char *strend = s + len; |
463ee0b2 LW |
696 | |
697 | while (s < strend) { | |
96827780 | 698 | char tmpbuf[256]; |
1e422769 | 699 | struct stat st; |
96827780 | 700 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 701 | s, strend, ':', &i); |
463ee0b2 | 702 | s++; |
96827780 MB |
703 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
704 | || *tmpbuf != '/' | |
c6ed36e1 | 705 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 706 | MgTAINTEDDIR_on(mg); |
1e422769 | 707 | return 0; |
708 | } | |
463ee0b2 | 709 | } |
79072805 LW |
710 | } |
711 | } | |
39e571d4 | 712 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 713 | |
79072805 LW |
714 | return 0; |
715 | } | |
716 | ||
717 | int | |
8ac85365 | 718 | magic_clearenv(SV *sv, MAGIC *mg) |
85e6fe83 | 719 | { |
5aabfad6 | 720 | my_setenv(MgPV(mg,na),Nullch); |
85e6fe83 LW |
721 | return 0; |
722 | } | |
723 | ||
88e89b8a | 724 | int |
8ac85365 | 725 | magic_set_all_env(SV *sv, MAGIC *mg) |
fb73857a | 726 | { |
727 | #if defined(VMS) | |
728 | die("Can't make list assignment to %%ENV on this system"); | |
729 | #else | |
d58bf5aa | 730 | dTHR; |
fb73857a | 731 | if (localizing) { |
732 | HE* entry; | |
733 | magic_clear_all_env(sv,mg); | |
734 | hv_iterinit((HV*)sv); | |
735 | while (entry = hv_iternext((HV*)sv)) { | |
736 | I32 keylen; | |
737 | my_setenv(hv_iterkey(entry, &keylen), | |
738 | SvPV(hv_iterval((HV*)sv, entry), na)); | |
739 | } | |
740 | } | |
741 | #endif | |
742 | return 0; | |
743 | } | |
744 | ||
745 | int | |
8ac85365 | 746 | magic_clear_all_env(SV *sv, MAGIC *mg) |
66b1d557 | 747 | { |
3e3baf6d TB |
748 | #if defined(VMS) |
749 | die("Can't make list assignment to %%ENV on this system"); | |
750 | #else | |
751 | #ifdef WIN32 | |
752 | char *envv = GetEnvironmentStrings(); | |
753 | char *cur = envv; | |
754 | STRLEN len; | |
755 | while (*cur) { | |
756 | char *end = strchr(cur,'='); | |
757 | if (end && end != cur) { | |
758 | *end = '\0'; | |
759 | my_setenv(cur,Nullch); | |
760 | *end = '='; | |
761 | cur += strlen(end+1)+1; | |
762 | } | |
763 | else if ((len = strlen(cur))) | |
764 | cur += len+1; | |
765 | } | |
766 | FreeEnvironmentStrings(envv); | |
66b1d557 HM |
767 | #else |
768 | I32 i; | |
769 | ||
770 | if (environ == origenviron) | |
771 | New(901, environ, 1, char*); | |
772 | else | |
773 | for (i = 0; environ[i]; i++) | |
774 | Safefree(environ[i]); | |
775 | environ[0] = Nullch; | |
776 | ||
66b1d557 | 777 | #endif |
3e3baf6d TB |
778 | #endif |
779 | return 0; | |
66b1d557 HM |
780 | } |
781 | ||
782 | int | |
8ac85365 | 783 | magic_getsig(SV *sv, MAGIC *mg) |
88e89b8a | 784 | { |
785 | I32 i; | |
786 | /* Are we fetching a signal entry? */ | |
5aabfad6 | 787 | i = whichsig(MgPV(mg,na)); |
88e89b8a | 788 | if (i) { |
789 | if(psig_ptr[i]) | |
790 | sv_setsv(sv,psig_ptr[i]); | |
791 | else { | |
ff68c719 | 792 | Sighandler_t sigstate = rsignal_state(i); |
793 | ||
88e89b8a | 794 | /* cache state so we don't fetch it again */ |
ff68c719 | 795 | if(sigstate == SIG_IGN) |
88e89b8a | 796 | sv_setpv(sv,"IGNORE"); |
797 | else | |
798 | sv_setsv(sv,&sv_undef); | |
799 | psig_ptr[i] = SvREFCNT_inc(sv); | |
800 | SvTEMP_off(sv); | |
801 | } | |
802 | } | |
803 | return 0; | |
804 | } | |
805 | int | |
8ac85365 | 806 | magic_clearsig(SV *sv, MAGIC *mg) |
88e89b8a | 807 | { |
808 | I32 i; | |
809 | /* Are we clearing a signal entry? */ | |
5aabfad6 | 810 | i = whichsig(MgPV(mg,na)); |
88e89b8a | 811 | if (i) { |
812 | if(psig_ptr[i]) { | |
813 | SvREFCNT_dec(psig_ptr[i]); | |
814 | psig_ptr[i]=0; | |
815 | } | |
816 | if(psig_name[i]) { | |
817 | SvREFCNT_dec(psig_name[i]); | |
818 | psig_name[i]=0; | |
819 | } | |
820 | } | |
821 | return 0; | |
822 | } | |
3d37d572 | 823 | |
85e6fe83 | 824 | int |
8ac85365 | 825 | magic_setsig(SV *sv, MAGIC *mg) |
79072805 | 826 | { |
11343788 | 827 | dTHR; |
79072805 LW |
828 | register char *s; |
829 | I32 i; | |
748a9306 | 830 | SV** svp; |
a0d0e21e | 831 | |
5aabfad6 | 832 | s = MgPV(mg,na); |
748a9306 LW |
833 | if (*s == '_') { |
834 | if (strEQ(s,"__DIE__")) | |
835 | svp = &diehook; | |
836 | else if (strEQ(s,"__WARN__")) | |
837 | svp = &warnhook; | |
838 | else if (strEQ(s,"__PARSE__")) | |
839 | svp = &parsehook; | |
840 | else | |
841 | croak("No such hook: %s", s); | |
842 | i = 0; | |
4633a7c4 LW |
843 | if (*svp) { |
844 | SvREFCNT_dec(*svp); | |
845 | *svp = 0; | |
846 | } | |
748a9306 LW |
847 | } |
848 | else { | |
849 | i = whichsig(s); /* ...no, a brick */ | |
850 | if (!i) { | |
851 | if (dowarn || strEQ(s,"ALARM")) | |
852 | warn("No such signal: SIG%s", s); | |
853 | return 0; | |
854 | } | |
ff0cee69 | 855 | SvREFCNT_dec(psig_name[i]); |
856 | SvREFCNT_dec(psig_ptr[i]); | |
88e89b8a | 857 | psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 858 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
ff0cee69 | 859 | psig_name[i] = newSVpv(s, strlen(s)); |
88e89b8a | 860 | SvREADONLY_on(psig_name[i]); |
748a9306 | 861 | } |
a0d0e21e | 862 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 863 | if (i) |
c23142e2 | 864 | (void)rsignal(i, sighandlerp); |
748a9306 LW |
865 | else |
866 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
867 | return 0; |
868 | } | |
869 | s = SvPV_force(sv,na); | |
748a9306 LW |
870 | if (strEQ(s,"IGNORE")) { |
871 | if (i) | |
ff68c719 | 872 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
873 | else |
874 | *svp = 0; | |
875 | } | |
876 | else if (strEQ(s,"DEFAULT") || !*s) { | |
877 | if (i) | |
ff68c719 | 878 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
879 | else |
880 | *svp = 0; | |
881 | } | |
79072805 | 882 | else { |
5aabfad6 | 883 | /* |
884 | * We should warn if HINT_STRICT_REFS, but without | |
885 | * access to a known hint bit in a known OP, we can't | |
886 | * tell whether HINT_STRICT_REFS is in force or not. | |
887 | */ | |
46fc3d4c | 888 | if (!strchr(s,':') && !strchr(s,'\'')) |
889 | sv_setpv(sv, form("main::%s", s)); | |
748a9306 | 890 | if (i) |
c23142e2 | 891 | (void)rsignal(i, sighandlerp); |
748a9306 LW |
892 | else |
893 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
894 | } |
895 | return 0; | |
896 | } | |
897 | ||
898 | int | |
8ac85365 | 899 | magic_setisa(SV *sv, MAGIC *mg) |
79072805 | 900 | { |
463ee0b2 LW |
901 | sub_generation++; |
902 | return 0; | |
903 | } | |
904 | ||
a0d0e21e LW |
905 | #ifdef OVERLOAD |
906 | ||
463ee0b2 | 907 | int |
8ac85365 | 908 | magic_setamagic(SV *sv, MAGIC *mg) |
463ee0b2 | 909 | { |
a0d0e21e LW |
910 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
911 | amagic_generation++; | |
463ee0b2 | 912 | |
a0d0e21e LW |
913 | return 0; |
914 | } | |
915 | #endif /* OVERLOAD */ | |
463ee0b2 | 916 | |
946ec16e | 917 | int |
6ff81951 GS |
918 | magic_getnkeys(SV *sv, MAGIC *mg) |
919 | { | |
920 | HV *hv = (HV*)LvTARG(sv); | |
921 | HE *entry; | |
922 | I32 i = 0; | |
923 | ||
924 | if (hv) { | |
925 | (void) hv_iterinit(hv); | |
926 | if (!SvRMAGICAL(hv) || !mg_find((SV*)hv,'P')) | |
927 | i = HvKEYS(hv); | |
928 | else { | |
929 | /*SUPPRESS 560*/ | |
930 | while (entry = hv_iternext(hv)) { | |
931 | i++; | |
932 | } | |
933 | } | |
934 | } | |
935 | ||
936 | sv_setiv(sv, (IV)i); | |
937 | return 0; | |
938 | } | |
939 | ||
940 | int | |
8ac85365 | 941 | magic_setnkeys(SV *sv, MAGIC *mg) |
946ec16e | 942 | { |
943 | if (LvTARG(sv)) { | |
944 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 945 | } |
946 | return 0; | |
93965878 | 947 | } |
946ec16e | 948 | |
e336de0d | 949 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 950 | STATIC int |
93965878 | 951 | magic_methcall(MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
952 | { |
953 | dSP; | |
463ee0b2 | 954 | |
924508f0 GS |
955 | PUSHMARK(SP); |
956 | EXTEND(SP, n); | |
a0d0e21e | 957 | PUSHs(mg->mg_obj); |
93965878 NIS |
958 | if (n > 1) { |
959 | if (mg->mg_ptr) { | |
565764a8 DL |
960 | if (mg->mg_len >= 0) |
961 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
962 | else if (mg->mg_len == HEf_SVKEY) | |
93965878 NIS |
963 | PUSHs((SV*)mg->mg_ptr); |
964 | } | |
965 | else if (mg->mg_type == 'p') { | |
565764a8 | 966 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
967 | } |
968 | } | |
969 | if (n > 2) { | |
970 | PUSHs(val); | |
88e89b8a | 971 | } |
463ee0b2 LW |
972 | PUTBACK; |
973 | ||
93965878 | 974 | return perl_call_method(meth, flags); |
946ec16e | 975 | } |
976 | ||
76e3520e | 977 | STATIC int |
8ac85365 | 978 | magic_methpack(SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
979 | { |
980 | dSP; | |
463ee0b2 | 981 | |
a0d0e21e LW |
982 | ENTER; |
983 | SAVETMPS; | |
e788e7d3 | 984 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 985 | |
93965878 | 986 | if (magic_methcall(mg, meth, G_SCALAR, 2, NULL)) { |
a0d0e21e | 987 | sv_setsv(sv, *stack_sp--); |
93965878 | 988 | } |
463ee0b2 | 989 | |
d3acc0f7 | 990 | POPSTACK; |
a0d0e21e LW |
991 | FREETMPS; |
992 | LEAVE; | |
993 | return 0; | |
994 | } | |
463ee0b2 | 995 | |
a0d0e21e | 996 | int |
8ac85365 | 997 | magic_getpack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
998 | { |
999 | magic_methpack(sv,mg,"FETCH"); | |
1000 | if (mg->mg_ptr) | |
1001 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1002 | return 0; |
1003 | } | |
1004 | ||
1005 | int | |
8ac85365 | 1006 | magic_setpack(SV *sv, MAGIC *mg) |
e336de0d GS |
1007 | { |
1008 | dSP; | |
a60c0954 | 1009 | ENTER; |
e788e7d3 | 1010 | PUSHSTACKi(PERLSI_MAGIC); |
93965878 | 1011 | magic_methcall(mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1012 | POPSTACK; |
a60c0954 | 1013 | LEAVE; |
463ee0b2 LW |
1014 | return 0; |
1015 | } | |
1016 | ||
1017 | int | |
8ac85365 | 1018 | magic_clearpack(SV *sv, MAGIC *mg) |
463ee0b2 | 1019 | { |
a0d0e21e LW |
1020 | return magic_methpack(sv,mg,"DELETE"); |
1021 | } | |
463ee0b2 | 1022 | |
93965878 NIS |
1023 | |
1024 | U32 | |
1025 | magic_sizepack(SV *sv, MAGIC *mg) | |
1026 | { | |
e336de0d | 1027 | dSP; |
93965878 NIS |
1028 | U32 retval = 0; |
1029 | ||
1030 | ENTER; | |
1031 | SAVETMPS; | |
e788e7d3 | 1032 | PUSHSTACKi(PERLSI_MAGIC); |
93965878 NIS |
1033 | if (magic_methcall(mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
1034 | sv = *stack_sp--; | |
a60c0954 | 1035 | retval = (U32) SvIV(sv)-1; |
93965878 | 1036 | } |
d3acc0f7 | 1037 | POPSTACK; |
93965878 NIS |
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 | |
e336de0d | 1047 | ENTER; |
e788e7d3 | 1048 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1049 | PUSHMARK(SP); |
a0d0e21e | 1050 | XPUSHs(mg->mg_obj); |
463ee0b2 | 1051 | PUTBACK; |
a0d0e21e | 1052 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1053 | POPSTACK; |
a60c0954 | 1054 | LEAVE; |
463ee0b2 LW |
1055 | return 0; |
1056 | } | |
1057 | ||
1058 | int | |
8ac85365 | 1059 | magic_nextpack(SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1060 | { |
463ee0b2 | 1061 | dSP; |
a0d0e21e | 1062 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1063 | |
1064 | ENTER; | |
a0d0e21e | 1065 | SAVETMPS; |
e788e7d3 | 1066 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1067 | PUSHMARK(SP); |
1068 | EXTEND(SP, 2); | |
a0d0e21e | 1069 | PUSHs(mg->mg_obj); |
463ee0b2 LW |
1070 | if (SvOK(key)) |
1071 | PUSHs(key); | |
1072 | PUTBACK; | |
1073 | ||
a0d0e21e LW |
1074 | if (perl_call_method(meth, G_SCALAR)) |
1075 | sv_setsv(key, *stack_sp--); | |
463ee0b2 | 1076 | |
d3acc0f7 | 1077 | POPSTACK; |
a0d0e21e LW |
1078 | FREETMPS; |
1079 | LEAVE; | |
79072805 LW |
1080 | return 0; |
1081 | } | |
1082 | ||
1083 | int | |
8ac85365 | 1084 | magic_existspack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1085 | { |
1086 | return magic_methpack(sv,mg,"EXISTS"); | |
1087 | } | |
1088 | ||
1089 | int | |
8ac85365 | 1090 | magic_setdbline(SV *sv, MAGIC *mg) |
79072805 | 1091 | { |
11343788 | 1092 | dTHR; |
79072805 LW |
1093 | OP *o; |
1094 | I32 i; | |
1095 | GV* gv; | |
1096 | SV** svp; | |
1097 | ||
1098 | gv = DBline; | |
1099 | i = SvTRUE(sv); | |
188ea221 | 1100 | svp = av_fetch(GvAV(gv), |
5aabfad6 | 1101 | atoi(MgPV(mg,na)), FALSE); |
8990e307 | 1102 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 1103 | o->op_private = i; |
79072805 LW |
1104 | else |
1105 | warn("Can't break at that line\n"); | |
1106 | return 0; | |
1107 | } | |
1108 | ||
1109 | int | |
8ac85365 | 1110 | magic_getarylen(SV *sv, MAGIC *mg) |
79072805 | 1111 | { |
0f15f207 | 1112 | dTHR; |
a0d0e21e | 1113 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 LW |
1114 | return 0; |
1115 | } | |
1116 | ||
1117 | int | |
8ac85365 | 1118 | magic_setarylen(SV *sv, MAGIC *mg) |
79072805 | 1119 | { |
0f15f207 | 1120 | dTHR; |
a0d0e21e LW |
1121 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
1122 | return 0; | |
1123 | } | |
1124 | ||
1125 | int | |
8ac85365 | 1126 | magic_getpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1127 | { |
1128 | SV* lsv = LvTARG(sv); | |
1129 | ||
1130 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1131 | mg = mg_find(lsv, 'g'); | |
565764a8 | 1132 | if (mg && mg->mg_len >= 0) { |
0f15f207 | 1133 | dTHR; |
565764a8 | 1134 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); |
a0d0e21e LW |
1135 | return 0; |
1136 | } | |
1137 | } | |
1138 | (void)SvOK_off(sv); | |
1139 | return 0; | |
1140 | } | |
1141 | ||
1142 | int | |
8ac85365 | 1143 | magic_setpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1144 | { |
1145 | SV* lsv = LvTARG(sv); | |
1146 | SSize_t pos; | |
1147 | STRLEN len; | |
1148 | ||
1149 | mg = 0; | |
1150 | ||
1151 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1152 | mg = mg_find(lsv, 'g'); | |
1153 | if (!mg) { | |
1154 | if (!SvOK(sv)) | |
1155 | return 0; | |
1156 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1157 | mg = mg_find(lsv, 'g'); | |
1158 | } | |
1159 | else if (!SvOK(sv)) { | |
565764a8 | 1160 | mg->mg_len = -1; |
a0d0e21e LW |
1161 | return 0; |
1162 | } | |
1163 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1164 | ||
0f15f207 | 1165 | WITH_THR(pos = SvIV(sv) - curcop->cop_arybase); |
a0d0e21e LW |
1166 | if (pos < 0) { |
1167 | pos += len; | |
1168 | if (pos < 0) | |
1169 | pos = 0; | |
1170 | } | |
1171 | else if (pos > len) | |
1172 | pos = len; | |
565764a8 | 1173 | mg->mg_len = pos; |
71be2cbc | 1174 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1175 | |
79072805 LW |
1176 | return 0; |
1177 | } | |
1178 | ||
1179 | int | |
8ac85365 | 1180 | magic_getglob(SV *sv, MAGIC *mg) |
79072805 | 1181 | { |
8646b087 | 1182 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1183 | SvFAKE_off(sv); | |
946ec16e | 1184 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1185 | SvFAKE_on(sv); |
1186 | } | |
1187 | else | |
946ec16e | 1188 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1189 | return 0; |
1190 | } | |
1191 | ||
1192 | int | |
8ac85365 | 1193 | magic_setglob(SV *sv, MAGIC *mg) |
79072805 LW |
1194 | { |
1195 | register char *s; | |
1196 | GV* gv; | |
1197 | ||
1198 | if (!SvOK(sv)) | |
1199 | return 0; | |
463ee0b2 | 1200 | s = SvPV(sv, na); |
79072805 LW |
1201 | if (*s == '*' && s[1]) |
1202 | s++; | |
85e6fe83 | 1203 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1204 | if (sv == (SV*)gv) |
1205 | return 0; | |
1206 | if (GvGP(sv)) | |
88e89b8a | 1207 | gp_free((GV*)sv); |
79072805 | 1208 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1209 | return 0; |
1210 | } | |
1211 | ||
1212 | int | |
6ff81951 GS |
1213 | magic_getsubstr(SV *sv, MAGIC *mg) |
1214 | { | |
1215 | STRLEN len; | |
1216 | SV *lsv = LvTARG(sv); | |
1217 | char *tmps = SvPV(lsv,len); | |
1218 | I32 offs = LvTARGOFF(sv); | |
1219 | I32 rem = LvTARGLEN(sv); | |
1220 | ||
1221 | if (offs > len) | |
1222 | offs = len; | |
1223 | if (rem + offs > len) | |
1224 | rem = len - offs; | |
1225 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
1226 | return 0; | |
1227 | } | |
1228 | ||
1229 | int | |
8ac85365 | 1230 | magic_setsubstr(SV *sv, MAGIC *mg) |
79072805 | 1231 | { |
8990e307 LW |
1232 | STRLEN len; |
1233 | char *tmps = SvPV(sv,len); | |
1234 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1235 | return 0; |
1236 | } | |
1237 | ||
1238 | int | |
8ac85365 | 1239 | magic_gettaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1240 | { |
a863c7d1 | 1241 | dTHR; |
565764a8 DL |
1242 | TAINT_IF((mg->mg_len & 1) || |
1243 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1244 | return 0; |
1245 | } | |
1246 | ||
1247 | int | |
8ac85365 | 1248 | magic_settaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1249 | { |
11343788 | 1250 | dTHR; |
748a9306 LW |
1251 | if (localizing) { |
1252 | if (localizing == 1) | |
565764a8 | 1253 | mg->mg_len <<= 1; |
748a9306 | 1254 | else |
565764a8 | 1255 | mg->mg_len >>= 1; |
a0d0e21e | 1256 | } |
748a9306 | 1257 | else if (tainted) |
565764a8 | 1258 | mg->mg_len |= 1; |
748a9306 | 1259 | else |
565764a8 | 1260 | mg->mg_len &= ~1; |
463ee0b2 LW |
1261 | return 0; |
1262 | } | |
1263 | ||
1264 | int | |
6ff81951 GS |
1265 | magic_getvec(SV *sv, MAGIC *mg) |
1266 | { | |
1267 | SV *lsv = LvTARG(sv); | |
1268 | unsigned char *s; | |
1269 | unsigned long retnum; | |
1270 | STRLEN lsvlen; | |
1271 | I32 len; | |
1272 | I32 offset; | |
1273 | I32 size; | |
1274 | ||
1275 | if (!lsv) { | |
1276 | SvOK_off(sv); | |
1277 | return 0; | |
1278 | } | |
1279 | s = (unsigned char *) SvPV(lsv, lsvlen); | |
1280 | offset = LvTARGOFF(sv); | |
1281 | size = LvTARGLEN(sv); | |
1282 | len = (offset + size + 7) / 8; | |
1283 | ||
1284 | /* Copied from pp_vec() */ | |
1285 | ||
1286 | if (len > lsvlen) { | |
1287 | if (size <= 8) | |
1288 | retnum = 0; | |
1289 | else { | |
1290 | offset >>= 3; | |
1291 | if (size == 16) { | |
1292 | if (offset >= lsvlen) | |
1293 | retnum = 0; | |
1294 | else | |
1295 | retnum = (unsigned long) s[offset] << 8; | |
1296 | } | |
1297 | else if (size == 32) { | |
1298 | if (offset >= lsvlen) | |
1299 | retnum = 0; | |
1300 | else if (offset + 1 >= lsvlen) | |
1301 | retnum = (unsigned long) s[offset] << 24; | |
1302 | else if (offset + 2 >= lsvlen) | |
1303 | retnum = ((unsigned long) s[offset] << 24) + | |
1304 | ((unsigned long) s[offset + 1] << 16); | |
1305 | else | |
1306 | retnum = ((unsigned long) s[offset] << 24) + | |
1307 | ((unsigned long) s[offset + 1] << 16) + | |
1308 | (s[offset + 2] << 8); | |
1309 | } | |
1310 | } | |
1311 | } | |
1312 | else if (size < 8) | |
1313 | retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1); | |
1314 | else { | |
1315 | offset >>= 3; | |
1316 | if (size == 8) | |
1317 | retnum = s[offset]; | |
1318 | else if (size == 16) | |
1319 | retnum = ((unsigned long) s[offset] << 8) + s[offset+1]; | |
1320 | else if (size == 32) | |
1321 | retnum = ((unsigned long) s[offset] << 24) + | |
1322 | ((unsigned long) s[offset + 1] << 16) + | |
1323 | (s[offset + 2] << 8) + s[offset+3]; | |
1324 | } | |
1325 | ||
1326 | sv_setuv(sv, (UV)retnum); | |
1327 | return 0; | |
1328 | } | |
1329 | ||
1330 | int | |
8ac85365 | 1331 | magic_setvec(SV *sv, MAGIC *mg) |
79072805 LW |
1332 | { |
1333 | do_vecset(sv); /* XXX slurp this routine */ | |
1334 | return 0; | |
1335 | } | |
1336 | ||
1337 | int | |
8ac85365 | 1338 | magic_getdefelem(SV *sv, MAGIC *mg) |
5f05dabc | 1339 | { |
71be2cbc | 1340 | SV *targ = Nullsv; |
5f05dabc | 1341 | if (LvTARGLEN(sv)) { |
68dc0745 | 1342 | if (mg->mg_obj) { |
74e13ce4 GS |
1343 | SV *ahv = LvTARG(sv); |
1344 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1345 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1346 | if (he) | |
1347 | targ = HeVAL(he); | |
1348 | } | |
1349 | else { | |
1350 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1351 | if (svp) | |
1352 | targ = *svp; | |
1353 | } | |
68dc0745 | 1354 | } |
1355 | else { | |
3c78fafa | 1356 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1357 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1358 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1359 | } | |
1360 | if (targ && targ != &sv_undef) { | |
e858de61 | 1361 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 | 1362 | /* somebody else defined it for us */ |
1363 | SvREFCNT_dec(LvTARG(sv)); | |
1364 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1365 | LvTARGLEN(sv) = 0; | |
1366 | SvREFCNT_dec(mg->mg_obj); | |
1367 | mg->mg_obj = Nullsv; | |
1368 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1369 | } | |
5f05dabc | 1370 | } |
71be2cbc | 1371 | else |
1372 | targ = LvTARG(sv); | |
1373 | sv_setsv(sv, targ ? targ : &sv_undef); | |
1374 | return 0; | |
1375 | } | |
1376 | ||
1377 | int | |
8ac85365 | 1378 | magic_setdefelem(SV *sv, MAGIC *mg) |
71be2cbc | 1379 | { |
1380 | if (LvTARGLEN(sv)) | |
68dc0745 | 1381 | vivify_defelem(sv); |
1382 | if (LvTARG(sv)) { | |
5f05dabc | 1383 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1384 | SvSETMAGIC(LvTARG(sv)); |
1385 | } | |
5f05dabc | 1386 | return 0; |
1387 | } | |
1388 | ||
1389 | int | |
8ac85365 | 1390 | magic_freedefelem(SV *sv, MAGIC *mg) |
5f05dabc | 1391 | { |
1392 | SvREFCNT_dec(LvTARG(sv)); | |
71be2cbc | 1393 | return 0; |
1394 | } | |
1395 | ||
1396 | void | |
8ac85365 | 1397 | vivify_defelem(SV *sv) |
71be2cbc | 1398 | { |
e858de61 | 1399 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
74e13ce4 GS |
1400 | MAGIC *mg; |
1401 | SV *value = Nullsv; | |
71be2cbc | 1402 | |
68dc0745 | 1403 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1404 | return; |
68dc0745 | 1405 | if (mg->mg_obj) { |
74e13ce4 GS |
1406 | SV *ahv = LvTARG(sv); |
1407 | if (SvTYPE(ahv) == SVt_PVHV) { | |
1408 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); | |
1409 | if (he) | |
1410 | value = HeVAL(he); | |
1411 | } | |
1412 | else { | |
1413 | SV **svp = avhv_fetch_ent((AV*)ahv, mg->mg_obj, FALSE, 0); | |
1414 | if (svp) | |
1415 | value = *svp; | |
1416 | } | |
1417 | if (!value || value == &sv_undef) | |
68dc0745 | 1418 | croak(no_helem, SvPV(mg->mg_obj, na)); |
71be2cbc | 1419 | } |
68dc0745 | 1420 | else { |
1421 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1422 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1423 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1424 | else { | |
1425 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
1426 | if (!svp || (value = *svp) == &sv_undef) | |
1427 | croak(no_aelem, (I32)LvTARGOFF(sv)); | |
1428 | } | |
1429 | } | |
3e3baf6d | 1430 | (void)SvREFCNT_inc(value); |
68dc0745 | 1431 | SvREFCNT_dec(LvTARG(sv)); |
1432 | LvTARG(sv) = value; | |
71be2cbc | 1433 | LvTARGLEN(sv) = 0; |
68dc0745 | 1434 | SvREFCNT_dec(mg->mg_obj); |
1435 | mg->mg_obj = Nullsv; | |
1436 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1437 | } |
1438 | ||
1439 | int | |
8ac85365 | 1440 | magic_setmglob(SV *sv, MAGIC *mg) |
93a17b20 | 1441 | { |
565764a8 | 1442 | mg->mg_len = -1; |
c6496cc7 | 1443 | SvSCREAM_off(sv); |
93a17b20 LW |
1444 | return 0; |
1445 | } | |
1446 | ||
1447 | int | |
8ac85365 | 1448 | magic_setbm(SV *sv, MAGIC *mg) |
79072805 | 1449 | { |
463ee0b2 | 1450 | sv_unmagic(sv, 'B'); |
79072805 LW |
1451 | SvVALID_off(sv); |
1452 | return 0; | |
1453 | } | |
1454 | ||
1455 | int | |
8ac85365 | 1456 | magic_setfm(SV *sv, MAGIC *mg) |
55497cff | 1457 | { |
1458 | sv_unmagic(sv, 'f'); | |
1459 | SvCOMPILED_off(sv); | |
1460 | return 0; | |
1461 | } | |
1462 | ||
1463 | int | |
8ac85365 | 1464 | magic_setuvar(SV *sv, MAGIC *mg) |
79072805 LW |
1465 | { |
1466 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1467 | ||
1468 | if (uf && uf->uf_set) | |
1469 | (*uf->uf_set)(uf->uf_index, sv); | |
1470 | return 0; | |
1471 | } | |
1472 | ||
c277df42 IZ |
1473 | int |
1474 | magic_freeregexp(SV *sv, MAGIC *mg) | |
1475 | { | |
1476 | regexp *re = (regexp *)mg->mg_obj; | |
1477 | ReREFCNT_dec(re); | |
1478 | return 0; | |
1479 | } | |
1480 | ||
7a4c00b4 | 1481 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1482 | int |
8ac85365 | 1483 | magic_setcollxfrm(SV *sv, MAGIC *mg) |
bbce6d69 | 1484 | { |
1485 | /* | |
1486 | * René Descartes said "I think not." | |
1487 | * and vanished with a faint plop. | |
1488 | */ | |
7a4c00b4 | 1489 | if (mg->mg_ptr) { |
1490 | Safefree(mg->mg_ptr); | |
1491 | mg->mg_ptr = NULL; | |
565764a8 | 1492 | mg->mg_len = -1; |
7a4c00b4 | 1493 | } |
bbce6d69 | 1494 | return 0; |
1495 | } | |
7a4c00b4 | 1496 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1497 | |
1498 | int | |
8ac85365 | 1499 | magic_set(SV *sv, MAGIC *mg) |
79072805 | 1500 | { |
11343788 | 1501 | dTHR; |
79072805 LW |
1502 | register char *s; |
1503 | I32 i; | |
8990e307 | 1504 | STRLEN len; |
79072805 | 1505 | switch (*mg->mg_ptr) { |
748a9306 LW |
1506 | case '\001': /* ^A */ |
1507 | sv_setsv(bodytarget, sv); | |
1508 | break; | |
79072805 | 1509 | case '\004': /* ^D */ |
8990e307 | 1510 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1511 | DEBUG_x(dump_all()); |
1512 | break; | |
28f23441 | 1513 | case '\005': /* ^E */ |
1514 | #ifdef VMS | |
1515 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1516 | #else | |
22fae026 TM |
1517 | #ifdef WIN32 |
1518 | SetLastError( SvIV(sv) ); | |
1519 | #else | |
f86702cc | 1520 | /* will anyone ever use this? */ |
1521 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
28f23441 | 1522 | #endif |
22fae026 | 1523 | #endif |
28f23441 | 1524 | break; |
79072805 | 1525 | case '\006': /* ^F */ |
463ee0b2 | 1526 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1527 | break; |
a0d0e21e LW |
1528 | case '\010': /* ^H */ |
1529 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1530 | break; | |
79072805 LW |
1531 | case '\t': /* ^I */ |
1532 | if (inplace) | |
1533 | Safefree(inplace); | |
1534 | if (SvOK(sv)) | |
a0d0e21e | 1535 | inplace = savepv(SvPV(sv,na)); |
79072805 LW |
1536 | else |
1537 | inplace = Nullch; | |
1538 | break; | |
28f23441 | 1539 | case '\017': /* ^O */ |
1540 | if (osname) | |
1541 | Safefree(osname); | |
1542 | if (SvOK(sv)) | |
1543 | osname = savepv(SvPV(sv,na)); | |
1544 | else | |
1545 | osname = Nullch; | |
1546 | break; | |
79072805 | 1547 | case '\020': /* ^P */ |
84902520 | 1548 | perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1549 | break; |
1550 | case '\024': /* ^T */ | |
88e89b8a | 1551 | #ifdef BIG_TIME |
1552 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); | |
1553 | #else | |
85e6fe83 | 1554 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1555 | #endif |
79072805 LW |
1556 | break; |
1557 | case '\027': /* ^W */ | |
463ee0b2 | 1558 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1559 | break; |
1560 | case '.': | |
748a9306 LW |
1561 | if (localizing) { |
1562 | if (localizing == 1) | |
1563 | save_sptr((SV**)&last_in_gv); | |
1564 | } | |
88e89b8a | 1565 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e | 1566 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 LW |
1567 | break; |
1568 | case '^': | |
a0d0e21e LW |
1569 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1570 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1571 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1572 | break; |
1573 | case '~': | |
a0d0e21e LW |
1574 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1575 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1576 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1577 | break; |
1578 | case '=': | |
a0d0e21e | 1579 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1580 | break; |
1581 | case '-': | |
a0d0e21e LW |
1582 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1583 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) | |
1584 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; | |
79072805 LW |
1585 | break; |
1586 | case '%': | |
a0d0e21e | 1587 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1588 | break; |
1589 | case '|': | |
4b65379b CS |
1590 | { |
1591 | IO *io = GvIOp(defoutgv); | |
1592 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) | |
1593 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1594 | else { | |
1595 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1596 | PerlIO *ofp = IoOFP(io); | |
1597 | if (ofp) | |
1598 | (void)PerlIO_flush(ofp); | |
1599 | IoFLAGS(io) |= IOf_FLUSH; | |
1600 | } | |
1601 | } | |
79072805 LW |
1602 | } |
1603 | break; | |
1604 | case '*': | |
463ee0b2 | 1605 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1606 | multiline = (i != 0); |
1607 | break; | |
1608 | case '/': | |
c07a80fd | 1609 | SvREFCNT_dec(nrs); |
1610 | nrs = newSVsv(sv); | |
1611 | SvREFCNT_dec(rs); | |
1612 | rs = SvREFCNT_inc(nrs); | |
79072805 LW |
1613 | break; |
1614 | case '\\': | |
1615 | if (ors) | |
1616 | Safefree(ors); | |
e3c19b7b CS |
1617 | if (SvOK(sv) || SvGMAGICAL(sv)) |
1618 | ors = savepv(SvPV(sv,orslen)); | |
1619 | else { | |
1620 | ors = Nullch; | |
1621 | orslen = 0; | |
1622 | } | |
79072805 LW |
1623 | break; |
1624 | case ',': | |
1625 | if (ofs) | |
1626 | Safefree(ofs); | |
a0d0e21e | 1627 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 LW |
1628 | break; |
1629 | case '#': | |
1630 | if (ofmt) | |
1631 | Safefree(ofmt); | |
a0d0e21e | 1632 | ofmt = savepv(SvPV(sv,na)); |
79072805 LW |
1633 | break; |
1634 | case '[': | |
a0d0e21e | 1635 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1636 | break; |
1637 | case '?': | |
ff0cee69 | 1638 | #ifdef COMPLEX_STATUS |
1639 | if (localizing == 2) { | |
1640 | statusvalue = LvTARGOFF(sv); | |
1641 | statusvalue_vms = LvTARGLEN(sv); | |
1642 | } | |
1643 | else | |
1644 | #endif | |
1645 | #ifdef VMSISH_STATUS | |
1646 | if (VMSISH_STATUS) | |
1647 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1648 | else | |
1649 | #endif | |
1650 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1651 | break; |
1652 | case '!': | |
78987ded | 1653 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1654 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1655 | break; |
1656 | case '<': | |
463ee0b2 | 1657 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1658 | if (delaymagic) { |
1659 | delaymagic |= DM_RUID; | |
1660 | break; /* don't do magic till later */ | |
1661 | } | |
1662 | #ifdef HAS_SETRUID | |
85e6fe83 | 1663 | (void)setruid((Uid_t)uid); |
79072805 LW |
1664 | #else |
1665 | #ifdef HAS_SETREUID | |
85e6fe83 | 1666 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 | 1667 | #else |
85e6fe83 LW |
1668 | #ifdef HAS_SETRESUID |
1669 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); | |
79072805 LW |
1670 | #else |
1671 | if (uid == euid) /* special case $< = $> */ | |
76e3520e | 1672 | (void)PerlProc_setuid(uid); |
a0d0e21e | 1673 | else { |
76e3520e | 1674 | uid = (I32)PerlProc_getuid(); |
463ee0b2 | 1675 | croak("setruid() not implemented"); |
a0d0e21e | 1676 | } |
79072805 LW |
1677 | #endif |
1678 | #endif | |
85e6fe83 | 1679 | #endif |
76e3520e | 1680 | uid = (I32)PerlProc_getuid(); |
4633a7c4 | 1681 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1682 | break; |
1683 | case '>': | |
463ee0b2 | 1684 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1685 | if (delaymagic) { |
1686 | delaymagic |= DM_EUID; | |
1687 | break; /* don't do magic till later */ | |
1688 | } | |
1689 | #ifdef HAS_SETEUID | |
85e6fe83 | 1690 | (void)seteuid((Uid_t)euid); |
79072805 LW |
1691 | #else |
1692 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1693 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1694 | #else | |
1695 | #ifdef HAS_SETRESUID | |
1696 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); | |
79072805 LW |
1697 | #else |
1698 | if (euid == uid) /* special case $> = $< */ | |
76e3520e | 1699 | PerlProc_setuid(euid); |
a0d0e21e | 1700 | else { |
76e3520e | 1701 | euid = (I32)PerlProc_geteuid(); |
463ee0b2 | 1702 | croak("seteuid() not implemented"); |
a0d0e21e | 1703 | } |
79072805 LW |
1704 | #endif |
1705 | #endif | |
85e6fe83 | 1706 | #endif |
76e3520e | 1707 | euid = (I32)PerlProc_geteuid(); |
4633a7c4 | 1708 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1709 | break; |
1710 | case '(': | |
463ee0b2 | 1711 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1712 | if (delaymagic) { |
1713 | delaymagic |= DM_RGID; | |
1714 | break; /* don't do magic till later */ | |
1715 | } | |
1716 | #ifdef HAS_SETRGID | |
85e6fe83 | 1717 | (void)setrgid((Gid_t)gid); |
79072805 LW |
1718 | #else |
1719 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1720 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1721 | #else | |
1722 | #ifdef HAS_SETRESGID | |
1723 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); | |
79072805 LW |
1724 | #else |
1725 | if (gid == egid) /* special case $( = $) */ | |
76e3520e | 1726 | (void)PerlProc_setgid(gid); |
748a9306 | 1727 | else { |
76e3520e | 1728 | gid = (I32)PerlProc_getgid(); |
463ee0b2 | 1729 | croak("setrgid() not implemented"); |
748a9306 | 1730 | } |
79072805 LW |
1731 | #endif |
1732 | #endif | |
85e6fe83 | 1733 | #endif |
76e3520e | 1734 | gid = (I32)PerlProc_getgid(); |
4633a7c4 | 1735 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1736 | break; |
1737 | case ')': | |
5cd24f17 | 1738 | #ifdef HAS_SETGROUPS |
1739 | { | |
1740 | char *p = SvPV(sv, na); | |
1741 | Groups_t gary[NGROUPS]; | |
1742 | ||
1743 | SET_NUMERIC_STANDARD(); | |
1744 | while (isSPACE(*p)) | |
1745 | ++p; | |
1746 | egid = I_V(atof(p)); | |
1747 | for (i = 0; i < NGROUPS; ++i) { | |
1748 | while (*p && !isSPACE(*p)) | |
1749 | ++p; | |
1750 | while (isSPACE(*p)) | |
1751 | ++p; | |
1752 | if (!*p) | |
1753 | break; | |
1754 | gary[i] = I_V(atof(p)); | |
1755 | } | |
8cc95fdb | 1756 | if (i) |
1757 | (void)setgroups(i, gary); | |
5cd24f17 | 1758 | } |
1759 | #else /* HAS_SETGROUPS */ | |
463ee0b2 | 1760 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1761 | #endif /* HAS_SETGROUPS */ |
79072805 LW |
1762 | if (delaymagic) { |
1763 | delaymagic |= DM_EGID; | |
1764 | break; /* don't do magic till later */ | |
1765 | } | |
1766 | #ifdef HAS_SETEGID | |
85e6fe83 | 1767 | (void)setegid((Gid_t)egid); |
79072805 LW |
1768 | #else |
1769 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1770 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1771 | #else | |
1772 | #ifdef HAS_SETRESGID | |
1773 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); | |
79072805 LW |
1774 | #else |
1775 | if (egid == gid) /* special case $) = $( */ | |
76e3520e | 1776 | (void)PerlProc_setgid(egid); |
748a9306 | 1777 | else { |
76e3520e | 1778 | egid = (I32)PerlProc_getegid(); |
463ee0b2 | 1779 | croak("setegid() not implemented"); |
748a9306 | 1780 | } |
79072805 LW |
1781 | #endif |
1782 | #endif | |
85e6fe83 | 1783 | #endif |
76e3520e | 1784 | egid = (I32)PerlProc_getegid(); |
4633a7c4 | 1785 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1786 | break; |
1787 | case ':': | |
a0d0e21e | 1788 | chopset = SvPV_force(sv,na); |
79072805 LW |
1789 | break; |
1790 | case '0': | |
1791 | if (!origalen) { | |
1792 | s = origargv[0]; | |
1793 | s += strlen(s); | |
1794 | /* See if all the arguments are contiguous in memory */ | |
1795 | for (i = 1; i < origargc; i++) { | |
fb73857a | 1796 | if (origargv[i] == s + 1 |
1797 | #ifdef OS2 | |
1798 | || origargv[i] == s + 2 | |
1799 | #endif | |
1800 | ) | |
79072805 | 1801 | s += strlen(++s); /* this one is ok too */ |
fb73857a | 1802 | else |
1803 | break; | |
79072805 | 1804 | } |
bbce6d69 | 1805 | /* can grab env area too? */ |
fb73857a | 1806 | if (origenviron && (origenviron[0] == s + 1 |
1807 | #ifdef OS2 | |
1808 | || (origenviron[0] == s + 9 && (s += 8)) | |
1809 | #endif | |
1810 | )) { | |
66b1d557 | 1811 | my_setenv("NoNe SuCh", Nullch); |
79072805 LW |
1812 | /* force copy of environment */ |
1813 | for (i = 0; origenviron[i]; i++) | |
1814 | if (origenviron[i] == s + 1) | |
1815 | s += strlen(++s); | |
fb73857a | 1816 | else |
1817 | break; | |
79072805 LW |
1818 | } |
1819 | origalen = s - origargv[0]; | |
1820 | } | |
a0d0e21e | 1821 | s = SvPV_force(sv,len); |
8990e307 | 1822 | i = len; |
79072805 LW |
1823 | if (i >= origalen) { |
1824 | i = origalen; | |
fb73857a | 1825 | /* don't allow system to limit $0 seen by script */ |
1826 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
79072805 | 1827 | Copy(s, origargv[0], i, char); |
fb73857a | 1828 | s = origargv[0]+i; |
1829 | *s = '\0'; | |
79072805 LW |
1830 | } |
1831 | else { | |
1832 | Copy(s, origargv[0], i, char); | |
1833 | s = origargv[0]+i; | |
1834 | *s++ = '\0'; | |
1835 | while (++i < origalen) | |
8990e307 LW |
1836 | *s++ = ' '; |
1837 | s = origargv[0]+i; | |
ed6116ce | 1838 | for (i = 1; i < origargc; i++) |
8990e307 | 1839 | origargv[i] = Nullch; |
79072805 LW |
1840 | } |
1841 | break; | |
a863c7d1 MB |
1842 | #ifdef USE_THREADS |
1843 | case '@': | |
38a03e6e | 1844 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
1845 | break; |
1846 | #endif /* USE_THREADS */ | |
79072805 LW |
1847 | } |
1848 | return 0; | |
1849 | } | |
1850 | ||
f93b4edd MB |
1851 | #ifdef USE_THREADS |
1852 | int | |
8ac85365 | 1853 | magic_mutexfree(SV *sv, MAGIC *mg) |
f93b4edd MB |
1854 | { |
1855 | dTHR; | |
bc1f4c86 MB |
1856 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
1857 | (unsigned long)thr, (unsigned long)sv);) | |
f93b4edd MB |
1858 | if (MgOWNER(mg)) |
1859 | croak("panic: magic_mutexfree"); | |
1860 | MUTEX_DESTROY(MgMUTEXP(mg)); | |
1861 | COND_DESTROY(MgCONDP(mg)); | |
e55aaa0e | 1862 | SvREFCNT_dec(sv); |
f93b4edd MB |
1863 | return 0; |
1864 | } | |
1865 | #endif /* USE_THREADS */ | |
1866 | ||
79072805 | 1867 | I32 |
8ac85365 | 1868 | whichsig(char *sig) |
79072805 LW |
1869 | { |
1870 | register char **sigv; | |
1871 | ||
1872 | for (sigv = sig_name+1; *sigv; sigv++) | |
1873 | if (strEQ(sig,*sigv)) | |
8e07c86e | 1874 | return sig_num[sigv - sig_name]; |
79072805 LW |
1875 | #ifdef SIGCLD |
1876 | if (strEQ(sig,"CHLD")) | |
1877 | return SIGCLD; | |
1878 | #endif | |
1879 | #ifdef SIGCHLD | |
1880 | if (strEQ(sig,"CLD")) | |
1881 | return SIGCHLD; | |
1882 | #endif | |
1883 | return 0; | |
1884 | } | |
1885 | ||
84902520 TB |
1886 | static SV* sig_sv; |
1887 | ||
76e3520e | 1888 | STATIC void |
8ac85365 | 1889 | unwind_handler_stack(void *p) |
84902520 | 1890 | { |
ff26ac79 | 1891 | dTHR; |
84902520 TB |
1892 | U32 flags = *(U32*)p; |
1893 | ||
1894 | if (flags & 1) | |
1895 | savestack_ix -= 5; /* Unprotect save in progress. */ | |
1896 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
1897 | if (flags & 64) | |
1898 | SvREFCNT_dec(sig_sv); | |
1899 | } | |
1900 | ||
ecfc5424 | 1901 | Signal_t |
8ac85365 | 1902 | sighandler(int sig) |
79072805 LW |
1903 | { |
1904 | dSP; | |
00d579c5 | 1905 | GV *gv = Nullgv; |
a0d0e21e | 1906 | HV *st; |
84902520 | 1907 | SV *sv, *tSv = Sv; |
00d579c5 | 1908 | CV *cv = Nullcv; |
84902520 TB |
1909 | OP *myop = op; |
1910 | U32 flags = 0; | |
1911 | I32 o_save_i = savestack_ix, type; | |
84902520 TB |
1912 | XPV *tXpv = Xpv; |
1913 | ||
1914 | if (savestack_ix + 15 <= savestack_max) | |
1915 | flags |= 1; | |
84902520 TB |
1916 | if (markstack_ptr < markstack_max - 2) |
1917 | flags |= 4; | |
1918 | if (retstack_ix < retstack_max - 2) | |
1919 | flags |= 8; | |
1920 | if (scopestack_ix < scopestack_max - 3) | |
1921 | flags |= 16; | |
1922 | ||
ff0cee69 | 1923 | if (!psig_ptr[sig]) |
1924 | die("Signal SIG%s received, but no signal handler set.\n", | |
1925 | sig_name[sig]); | |
1926 | ||
84902520 TB |
1927 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
1928 | infinity, so we fix 4 (in fact 5): */ | |
1929 | if (flags & 1) { | |
1930 | savestack_ix += 5; /* Protect save in progress. */ | |
1931 | o_save_i = savestack_ix; | |
565764a8 | 1932 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); |
84902520 TB |
1933 | } |
1934 | if (flags & 4) | |
1935 | markstack_ptr++; /* Protect mark. */ | |
1936 | if (flags & 8) { | |
1937 | retstack_ix++; | |
1938 | retstack[retstack_ix] = NULL; | |
1939 | } | |
1940 | if (flags & 16) | |
1941 | scopestack_ix += 1; | |
1942 | /* sv_2cv is too complicated, try a simpler variant first: */ | |
1943 | if (!SvROK(psig_ptr[sig]) || !(cv = (CV*)SvRV(psig_ptr[sig])) | |
1944 | || SvTYPE(cv) != SVt_PVCV) | |
1945 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); | |
1946 | ||
a0d0e21e | 1947 | if (!cv || !CvROOT(cv)) { |
79072805 LW |
1948 | if (dowarn) |
1949 | warn("SIG%s handler \"%s\" not defined.\n", | |
00d579c5 GS |
1950 | sig_name[sig], (gv ? GvENAME(gv) |
1951 | : ((cv && CvGV(cv)) | |
1952 | ? GvENAME(CvGV(cv)) | |
1953 | : "__ANON__"))); | |
1954 | goto cleanup; | |
79072805 LW |
1955 | } |
1956 | ||
84902520 | 1957 | if(psig_name[sig]) { |
88e89b8a | 1958 | sv = SvREFCNT_inc(psig_name[sig]); |
84902520 TB |
1959 | flags |= 64; |
1960 | sig_sv = sv; | |
1961 | } else { | |
ff0cee69 | 1962 | sv = sv_newmortal(); |
1963 | sv_setpv(sv,sig_name[sig]); | |
88e89b8a | 1964 | } |
e336de0d | 1965 | |
e788e7d3 | 1966 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 1967 | PUSHMARK(SP); |
79072805 | 1968 | PUSHs(sv); |
79072805 | 1969 | PUTBACK; |
a0d0e21e LW |
1970 | |
1971 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 | 1972 | |
d3acc0f7 | 1973 | POPSTACK; |
00d579c5 | 1974 | cleanup: |
84902520 TB |
1975 | if (flags & 1) |
1976 | savestack_ix -= 8; /* Unprotect save in progress. */ | |
84902520 TB |
1977 | if (flags & 4) |
1978 | markstack_ptr--; | |
1979 | if (flags & 8) | |
1980 | retstack_ix--; | |
1981 | if (flags & 16) | |
1982 | scopestack_ix -= 1; | |
1983 | if (flags & 64) | |
1984 | SvREFCNT_dec(sv); | |
1985 | op = myop; /* Apparently not needed... */ | |
1986 | ||
1987 | Sv = tSv; /* Restore global temporaries. */ | |
1988 | Xpv = tXpv; | |
79072805 LW |
1989 | return; |
1990 | } | |
4e35701f NIS |
1991 | |
1992 |