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) |
48c036b1 GS |
481 | tainted = (was_tainted || RX_MATCH_TAINTED(rx) || |
482 | (curpm->op_pmflags & PMf_TAINTMEM)); | |
748a9306 LW |
483 | break; |
484 | } | |
79072805 | 485 | } |
79072805 | 486 | } |
748a9306 | 487 | sv_setsv(sv,&sv_undef); |
79072805 LW |
488 | break; |
489 | case '+': | |
d9f97599 GS |
490 | if (curpm && (rx = curpm->op_pmregexp)) { |
491 | paren = rx->lastparen; | |
a0d0e21e LW |
492 | if (paren) |
493 | goto getparen; | |
79072805 | 494 | } |
748a9306 | 495 | sv_setsv(sv,&sv_undef); |
79072805 LW |
496 | break; |
497 | case '`': | |
d9f97599 GS |
498 | if (curpm && (rx = curpm->op_pmregexp)) { |
499 | if ((s = rx->subbeg) && rx->startp[0]) { | |
500 | i = rx->startp[0] - s; | |
13f57bf8 | 501 | goto getrx; |
79072805 | 502 | } |
79072805 | 503 | } |
748a9306 | 504 | sv_setsv(sv,&sv_undef); |
79072805 LW |
505 | break; |
506 | case '\'': | |
d9f97599 GS |
507 | if (curpm && (rx = curpm->op_pmregexp)) { |
508 | if (rx->subend && (s = rx->endp[0])) { | |
509 | i = rx->subend - s; | |
13f57bf8 | 510 | goto getrx; |
79072805 | 511 | } |
79072805 | 512 | } |
748a9306 | 513 | sv_setsv(sv,&sv_undef); |
79072805 LW |
514 | break; |
515 | case '.': | |
516 | #ifndef lint | |
a0d0e21e | 517 | if (GvIO(last_in_gv)) { |
188ea221 | 518 | sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv))); |
79072805 LW |
519 | } |
520 | #endif | |
521 | break; | |
522 | case '?': | |
809a5acc MB |
523 | { |
524 | dTHR; | |
525 | sv_setiv(sv, (IV)STATUS_CURRENT); | |
ff0cee69 | 526 | #ifdef COMPLEX_STATUS |
809a5acc MB |
527 | LvTARGOFF(sv) = statusvalue; |
528 | LvTARGLEN(sv) = statusvalue_vms; | |
ff0cee69 | 529 | #endif |
809a5acc | 530 | } |
79072805 LW |
531 | break; |
532 | case '^': | |
a0d0e21e | 533 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 LW |
534 | if (s) |
535 | sv_setpv(sv,s); | |
536 | else { | |
537 | sv_setpv(sv,GvENAME(defoutgv)); | |
538 | sv_catpv(sv,"_TOP"); | |
539 | } | |
540 | break; | |
541 | case '~': | |
a0d0e21e | 542 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 LW |
543 | if (!s) |
544 | s = GvENAME(defoutgv); | |
545 | sv_setpv(sv,s); | |
546 | break; | |
547 | #ifndef lint | |
548 | case '=': | |
188ea221 | 549 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 LW |
550 | break; |
551 | case '-': | |
188ea221 | 552 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 LW |
553 | break; |
554 | case '%': | |
188ea221 | 555 | sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv))); |
79072805 LW |
556 | break; |
557 | #endif | |
558 | case ':': | |
559 | break; | |
560 | case '/': | |
561 | break; | |
562 | case '[': | |
0f15f207 | 563 | WITH_THR(sv_setiv(sv, (IV)curcop->cop_arybase)); |
79072805 LW |
564 | break; |
565 | case '|': | |
188ea221 | 566 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
567 | break; |
568 | case ',': | |
569 | sv_setpvn(sv,ofs,ofslen); | |
570 | break; | |
571 | case '\\': | |
572 | sv_setpvn(sv,ors,orslen); | |
573 | break; | |
574 | case '#': | |
575 | sv_setpv(sv,ofmt); | |
576 | break; | |
577 | case '!': | |
a5f75d66 | 578 | #ifdef VMS |
946ec16e | 579 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 580 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 581 | #else |
88e89b8a | 582 | { |
583 | int saveerrno = errno; | |
946ec16e | 584 | sv_setnv(sv, (double)errno); |
88e89b8a | 585 | #ifdef OS2 |
586 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
587 | else | |
a5f75d66 | 588 | #endif |
2304df62 | 589 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 590 | errno = saveerrno; |
591 | } | |
592 | #endif | |
946ec16e | 593 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
594 | break; |
595 | case '<': | |
188ea221 | 596 | sv_setiv(sv, (IV)uid); |
79072805 LW |
597 | break; |
598 | case '>': | |
188ea221 | 599 | sv_setiv(sv, (IV)euid); |
79072805 LW |
600 | break; |
601 | case '(': | |
188ea221 | 602 | sv_setiv(sv, (IV)gid); |
fc36a67e | 603 | sv_setpvf(sv, "%Vd", (IV)gid); |
79072805 LW |
604 | goto add_groups; |
605 | case ')': | |
188ea221 | 606 | sv_setiv(sv, (IV)egid); |
fc36a67e | 607 | sv_setpvf(sv, "%Vd", (IV)egid); |
79072805 | 608 | add_groups: |
79072805 | 609 | #ifdef HAS_GETGROUPS |
79072805 | 610 | { |
a0d0e21e | 611 | Groups_t gary[NGROUPS]; |
79072805 | 612 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 613 | while (--i >= 0) |
fc36a67e | 614 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 LW |
615 | } |
616 | #endif | |
29355cf7 | 617 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
618 | break; |
619 | case '*': | |
620 | break; | |
621 | case '0': | |
622 | break; | |
a863c7d1 MB |
623 | #ifdef USE_THREADS |
624 | case '@': | |
38a03e6e | 625 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
626 | break; |
627 | #endif /* USE_THREADS */ | |
79072805 | 628 | } |
a0d0e21e | 629 | return 0; |
79072805 LW |
630 | } |
631 | ||
632 | int | |
8ac85365 | 633 | magic_getuvar(SV *sv, MAGIC *mg) |
79072805 LW |
634 | { |
635 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
636 | ||
637 | if (uf && uf->uf_val) | |
638 | (*uf->uf_val)(uf->uf_index, sv); | |
639 | return 0; | |
640 | } | |
641 | ||
642 | int | |
8ac85365 | 643 | magic_setenv(SV *sv, MAGIC *mg) |
79072805 LW |
644 | { |
645 | register char *s; | |
88e89b8a | 646 | char *ptr; |
5aabfad6 | 647 | STRLEN len, klen; |
a0d0e21e | 648 | I32 i; |
1e422769 | 649 | |
a0d0e21e | 650 | s = SvPV(sv,len); |
5aabfad6 | 651 | ptr = MgPV(mg,klen); |
88e89b8a | 652 | my_setenv(ptr, s); |
1e422769 | 653 | |
a0d0e21e LW |
654 | #ifdef DYNAMIC_ENV_FETCH |
655 | /* We just undefd an environment var. Is a replacement */ | |
656 | /* waiting in the wings? */ | |
657 | if (!len) { | |
5aabfad6 | 658 | SV **valp; |
659 | if ((valp = hv_fetch(GvHVn(envgv), ptr, klen, FALSE))) | |
660 | s = SvPV(*valp, len); | |
a0d0e21e LW |
661 | } |
662 | #endif | |
1e422769 | 663 | |
39e571d4 | 664 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
665 | /* And you'll never guess what the dog had */ |
666 | /* in its mouth... */ | |
463ee0b2 | 667 | if (tainting) { |
1e422769 | 668 | MgTAINTEDDIR_off(mg); |
669 | #ifdef VMS | |
5aabfad6 | 670 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 671 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
672 | struct stat sbuf; | |
673 | int i = 0, j = 0; | |
674 | ||
675 | do { /* DCL$PATH may be a search list */ | |
676 | while (1) { /* as may dev portion of any element */ | |
677 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
678 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
679 | cando_by_name(S_IWUSR,0,elt) ) { | |
680 | MgTAINTEDDIR_on(mg); | |
681 | return 0; | |
682 | } | |
683 | } | |
684 | if ((cp = strchr(elt, ':')) != Nullch) | |
685 | *cp = '\0'; | |
686 | if (my_trnlnm(elt, eltbuf, j++)) | |
687 | elt = eltbuf; | |
688 | else | |
689 | break; | |
690 | } | |
691 | j = 0; | |
692 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
693 | } | |
694 | #endif /* VMS */ | |
5aabfad6 | 695 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 696 | char *strend = s + len; |
463ee0b2 LW |
697 | |
698 | while (s < strend) { | |
96827780 | 699 | char tmpbuf[256]; |
1e422769 | 700 | struct stat st; |
96827780 | 701 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 702 | s, strend, ':', &i); |
463ee0b2 | 703 | s++; |
96827780 MB |
704 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
705 | || *tmpbuf != '/' | |
c6ed36e1 | 706 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 707 | MgTAINTEDDIR_on(mg); |
1e422769 | 708 | return 0; |
709 | } | |
463ee0b2 | 710 | } |
79072805 LW |
711 | } |
712 | } | |
39e571d4 | 713 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 714 | |
79072805 LW |
715 | return 0; |
716 | } | |
717 | ||
718 | int | |
8ac85365 | 719 | magic_clearenv(SV *sv, MAGIC *mg) |
85e6fe83 | 720 | { |
5aabfad6 | 721 | my_setenv(MgPV(mg,na),Nullch); |
85e6fe83 LW |
722 | return 0; |
723 | } | |
724 | ||
88e89b8a | 725 | int |
8ac85365 | 726 | magic_set_all_env(SV *sv, MAGIC *mg) |
fb73857a | 727 | { |
728 | #if defined(VMS) | |
729 | die("Can't make list assignment to %%ENV on this system"); | |
730 | #else | |
d58bf5aa | 731 | dTHR; |
fb73857a | 732 | if (localizing) { |
733 | HE* entry; | |
734 | magic_clear_all_env(sv,mg); | |
735 | hv_iterinit((HV*)sv); | |
736 | while (entry = hv_iternext((HV*)sv)) { | |
737 | I32 keylen; | |
738 | my_setenv(hv_iterkey(entry, &keylen), | |
739 | SvPV(hv_iterval((HV*)sv, entry), na)); | |
740 | } | |
741 | } | |
742 | #endif | |
743 | return 0; | |
744 | } | |
745 | ||
746 | int | |
8ac85365 | 747 | magic_clear_all_env(SV *sv, MAGIC *mg) |
66b1d557 | 748 | { |
3e3baf6d TB |
749 | #if defined(VMS) |
750 | die("Can't make list assignment to %%ENV on this system"); | |
751 | #else | |
752 | #ifdef WIN32 | |
753 | char *envv = GetEnvironmentStrings(); | |
754 | char *cur = envv; | |
755 | STRLEN len; | |
756 | while (*cur) { | |
757 | char *end = strchr(cur,'='); | |
758 | if (end && end != cur) { | |
759 | *end = '\0'; | |
760 | my_setenv(cur,Nullch); | |
761 | *end = '='; | |
762 | cur += strlen(end+1)+1; | |
763 | } | |
764 | else if ((len = strlen(cur))) | |
765 | cur += len+1; | |
766 | } | |
767 | FreeEnvironmentStrings(envv); | |
66b1d557 HM |
768 | #else |
769 | I32 i; | |
770 | ||
771 | if (environ == origenviron) | |
772 | New(901, environ, 1, char*); | |
773 | else | |
774 | for (i = 0; environ[i]; i++) | |
775 | Safefree(environ[i]); | |
776 | environ[0] = Nullch; | |
777 | ||
66b1d557 | 778 | #endif |
3e3baf6d TB |
779 | #endif |
780 | return 0; | |
66b1d557 HM |
781 | } |
782 | ||
783 | int | |
8ac85365 | 784 | magic_getsig(SV *sv, MAGIC *mg) |
88e89b8a | 785 | { |
786 | I32 i; | |
787 | /* Are we fetching a signal entry? */ | |
5aabfad6 | 788 | i = whichsig(MgPV(mg,na)); |
88e89b8a | 789 | if (i) { |
790 | if(psig_ptr[i]) | |
791 | sv_setsv(sv,psig_ptr[i]); | |
792 | else { | |
ff68c719 | 793 | Sighandler_t sigstate = rsignal_state(i); |
794 | ||
88e89b8a | 795 | /* cache state so we don't fetch it again */ |
ff68c719 | 796 | if(sigstate == SIG_IGN) |
88e89b8a | 797 | sv_setpv(sv,"IGNORE"); |
798 | else | |
799 | sv_setsv(sv,&sv_undef); | |
800 | psig_ptr[i] = SvREFCNT_inc(sv); | |
801 | SvTEMP_off(sv); | |
802 | } | |
803 | } | |
804 | return 0; | |
805 | } | |
806 | int | |
8ac85365 | 807 | magic_clearsig(SV *sv, MAGIC *mg) |
88e89b8a | 808 | { |
809 | I32 i; | |
810 | /* Are we clearing a signal entry? */ | |
5aabfad6 | 811 | i = whichsig(MgPV(mg,na)); |
88e89b8a | 812 | if (i) { |
813 | if(psig_ptr[i]) { | |
814 | SvREFCNT_dec(psig_ptr[i]); | |
815 | psig_ptr[i]=0; | |
816 | } | |
817 | if(psig_name[i]) { | |
818 | SvREFCNT_dec(psig_name[i]); | |
819 | psig_name[i]=0; | |
820 | } | |
821 | } | |
822 | return 0; | |
823 | } | |
3d37d572 | 824 | |
85e6fe83 | 825 | int |
8ac85365 | 826 | magic_setsig(SV *sv, MAGIC *mg) |
79072805 | 827 | { |
11343788 | 828 | dTHR; |
79072805 LW |
829 | register char *s; |
830 | I32 i; | |
748a9306 | 831 | SV** svp; |
a0d0e21e | 832 | |
5aabfad6 | 833 | s = MgPV(mg,na); |
748a9306 LW |
834 | if (*s == '_') { |
835 | if (strEQ(s,"__DIE__")) | |
836 | svp = &diehook; | |
837 | else if (strEQ(s,"__WARN__")) | |
838 | svp = &warnhook; | |
839 | else if (strEQ(s,"__PARSE__")) | |
840 | svp = &parsehook; | |
841 | else | |
842 | croak("No such hook: %s", s); | |
843 | i = 0; | |
4633a7c4 LW |
844 | if (*svp) { |
845 | SvREFCNT_dec(*svp); | |
846 | *svp = 0; | |
847 | } | |
748a9306 LW |
848 | } |
849 | else { | |
850 | i = whichsig(s); /* ...no, a brick */ | |
851 | if (!i) { | |
852 | if (dowarn || strEQ(s,"ALARM")) | |
853 | warn("No such signal: SIG%s", s); | |
854 | return 0; | |
855 | } | |
ff0cee69 | 856 | SvREFCNT_dec(psig_name[i]); |
857 | SvREFCNT_dec(psig_ptr[i]); | |
88e89b8a | 858 | psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 859 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
ff0cee69 | 860 | psig_name[i] = newSVpv(s, strlen(s)); |
88e89b8a | 861 | SvREADONLY_on(psig_name[i]); |
748a9306 | 862 | } |
a0d0e21e | 863 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 864 | if (i) |
c23142e2 | 865 | (void)rsignal(i, sighandlerp); |
748a9306 LW |
866 | else |
867 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
868 | return 0; |
869 | } | |
870 | s = SvPV_force(sv,na); | |
748a9306 LW |
871 | if (strEQ(s,"IGNORE")) { |
872 | if (i) | |
ff68c719 | 873 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
874 | else |
875 | *svp = 0; | |
876 | } | |
877 | else if (strEQ(s,"DEFAULT") || !*s) { | |
878 | if (i) | |
ff68c719 | 879 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
880 | else |
881 | *svp = 0; | |
882 | } | |
79072805 | 883 | else { |
5aabfad6 | 884 | /* |
885 | * We should warn if HINT_STRICT_REFS, but without | |
886 | * access to a known hint bit in a known OP, we can't | |
887 | * tell whether HINT_STRICT_REFS is in force or not. | |
888 | */ | |
46fc3d4c | 889 | if (!strchr(s,':') && !strchr(s,'\'')) |
890 | sv_setpv(sv, form("main::%s", s)); | |
748a9306 | 891 | if (i) |
c23142e2 | 892 | (void)rsignal(i, sighandlerp); |
748a9306 LW |
893 | else |
894 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
895 | } |
896 | return 0; | |
897 | } | |
898 | ||
899 | int | |
8ac85365 | 900 | magic_setisa(SV *sv, MAGIC *mg) |
79072805 | 901 | { |
a0231f0e MB |
902 | HV *stash; |
903 | SV **svp; | |
904 | I32 fill; | |
905 | HV *basefields = Nullhv; | |
906 | GV **gvp; | |
907 | GV *gv; | |
908 | HE *he; | |
909 | static char *FIELDS = "FIELDS"; | |
910 | ||
463ee0b2 | 911 | sub_generation++; |
a0231f0e MB |
912 | |
913 | if (mg->mg_type == 'i') | |
914 | return 0; /* Ignore lower-case version of the magic */ | |
915 | ||
916 | stash = GvSTASH(mg->mg_obj); | |
917 | svp = AvARRAY((AV*)sv); | |
93965878 NIS |
918 | |
919 | /* NOTE: No support for tied ISA */ | |
920 | for (fill = AvFILLp((AV*)sv); fill >= 0; fill--, svp++) { | |
a0231f0e MB |
921 | HV *basestash = gv_stashsv(*svp, FALSE); |
922 | ||
923 | if (!basestash) { | |
924 | if (dowarn) | |
925 | warn("No such package \"%_\" in @ISA assignment", *svp); | |
926 | continue; | |
927 | } | |
928 | gvp = (GV**)hv_fetch(basestash, FIELDS, 6, FALSE); | |
929 | if (gvp && *gvp && GvHV(*gvp)) { | |
930 | if (basefields) | |
931 | croak("Can't multiply inherit %%FIELDS"); | |
932 | basefields = GvHV(*gvp); | |
933 | } | |
934 | } | |
935 | ||
936 | if (!basefields) | |
937 | return 0; | |
938 | ||
939 | gv = (GV*)*hv_fetch(stash, FIELDS, 6, TRUE); | |
940 | if (!isGV(gv)) | |
941 | gv_init(gv, stash, FIELDS, 6, TRUE); | |
942 | if (!GvHV(gv)) | |
943 | GvHV(gv) = newHV(); | |
944 | if (HvKEYS(GvHV(gv))) | |
945 | croak("Inherited %%FIELDS can't override existing %%FIELDS"); | |
946 | ||
947 | hv_iterinit(GvHV(gv)); | |
948 | while ((he = hv_iternext(basefields))) | |
949 | hv_store(GvHV(gv), HeKEY(he), HeKLEN(he), HeVAL(he), HeHASH(he)); | |
950 | ||
463ee0b2 LW |
951 | return 0; |
952 | } | |
953 | ||
a0d0e21e LW |
954 | #ifdef OVERLOAD |
955 | ||
463ee0b2 | 956 | int |
8ac85365 | 957 | magic_setamagic(SV *sv, MAGIC *mg) |
463ee0b2 | 958 | { |
a0d0e21e LW |
959 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
960 | amagic_generation++; | |
463ee0b2 | 961 | |
a0d0e21e LW |
962 | return 0; |
963 | } | |
964 | #endif /* OVERLOAD */ | |
463ee0b2 | 965 | |
946ec16e | 966 | int |
6ff81951 GS |
967 | magic_getnkeys(SV *sv, MAGIC *mg) |
968 | { | |
969 | HV *hv = (HV*)LvTARG(sv); | |
970 | HE *entry; | |
971 | I32 i = 0; | |
972 | ||
973 | if (hv) { | |
974 | (void) hv_iterinit(hv); | |
975 | if (!SvRMAGICAL(hv) || !mg_find((SV*)hv,'P')) | |
976 | i = HvKEYS(hv); | |
977 | else { | |
978 | /*SUPPRESS 560*/ | |
979 | while (entry = hv_iternext(hv)) { | |
980 | i++; | |
981 | } | |
982 | } | |
983 | } | |
984 | ||
985 | sv_setiv(sv, (IV)i); | |
986 | return 0; | |
987 | } | |
988 | ||
989 | int | |
8ac85365 | 990 | magic_setnkeys(SV *sv, MAGIC *mg) |
946ec16e | 991 | { |
992 | if (LvTARG(sv)) { | |
993 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 994 | } |
995 | return 0; | |
93965878 | 996 | } |
946ec16e | 997 | |
e336de0d | 998 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 999 | STATIC int |
93965878 | 1000 | magic_methcall(MAGIC *mg, char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1001 | { |
1002 | dSP; | |
463ee0b2 | 1003 | |
924508f0 GS |
1004 | PUSHMARK(SP); |
1005 | EXTEND(SP, n); | |
a0d0e21e | 1006 | PUSHs(mg->mg_obj); |
93965878 NIS |
1007 | if (n > 1) { |
1008 | if (mg->mg_ptr) { | |
565764a8 DL |
1009 | if (mg->mg_len >= 0) |
1010 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
1011 | else if (mg->mg_len == HEf_SVKEY) | |
93965878 NIS |
1012 | PUSHs((SV*)mg->mg_ptr); |
1013 | } | |
1014 | else if (mg->mg_type == 'p') { | |
565764a8 | 1015 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1016 | } |
1017 | } | |
1018 | if (n > 2) { | |
1019 | PUSHs(val); | |
88e89b8a | 1020 | } |
463ee0b2 LW |
1021 | PUTBACK; |
1022 | ||
93965878 | 1023 | return perl_call_method(meth, flags); |
946ec16e | 1024 | } |
1025 | ||
76e3520e | 1026 | STATIC int |
8ac85365 | 1027 | magic_methpack(SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
1028 | { |
1029 | dSP; | |
463ee0b2 | 1030 | |
a0d0e21e LW |
1031 | ENTER; |
1032 | SAVETMPS; | |
e336de0d | 1033 | PUSHSTACK(SI_MAGIC); |
463ee0b2 | 1034 | |
93965878 | 1035 | if (magic_methcall(mg, meth, G_SCALAR, 2, NULL)) { |
a0d0e21e | 1036 | sv_setsv(sv, *stack_sp--); |
93965878 | 1037 | } |
463ee0b2 | 1038 | |
e336de0d | 1039 | POPSTACK(); |
a0d0e21e LW |
1040 | FREETMPS; |
1041 | LEAVE; | |
1042 | return 0; | |
1043 | } | |
463ee0b2 | 1044 | |
a0d0e21e | 1045 | int |
8ac85365 | 1046 | magic_getpack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1047 | { |
1048 | magic_methpack(sv,mg,"FETCH"); | |
1049 | if (mg->mg_ptr) | |
1050 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
1051 | return 0; |
1052 | } | |
1053 | ||
1054 | int | |
8ac85365 | 1055 | magic_setpack(SV *sv, MAGIC *mg) |
e336de0d GS |
1056 | { |
1057 | dSP; | |
a60c0954 | 1058 | ENTER; |
e336de0d | 1059 | PUSHSTACK(SI_MAGIC); |
93965878 | 1060 | magic_methcall(mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
e336de0d | 1061 | POPSTACK(); |
a60c0954 | 1062 | LEAVE; |
463ee0b2 LW |
1063 | return 0; |
1064 | } | |
1065 | ||
1066 | int | |
8ac85365 | 1067 | magic_clearpack(SV *sv, MAGIC *mg) |
463ee0b2 | 1068 | { |
a0d0e21e LW |
1069 | return magic_methpack(sv,mg,"DELETE"); |
1070 | } | |
463ee0b2 | 1071 | |
93965878 NIS |
1072 | |
1073 | U32 | |
1074 | magic_sizepack(SV *sv, MAGIC *mg) | |
1075 | { | |
e336de0d | 1076 | dSP; |
93965878 NIS |
1077 | U32 retval = 0; |
1078 | ||
1079 | ENTER; | |
1080 | SAVETMPS; | |
e336de0d | 1081 | PUSHSTACK(SI_MAGIC); |
93965878 NIS |
1082 | if (magic_methcall(mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
1083 | sv = *stack_sp--; | |
a60c0954 | 1084 | retval = (U32) SvIV(sv)-1; |
93965878 | 1085 | } |
e336de0d | 1086 | POPSTACK(); |
93965878 NIS |
1087 | FREETMPS; |
1088 | LEAVE; | |
1089 | return retval; | |
1090 | } | |
1091 | ||
8ac85365 | 1092 | int magic_wipepack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1093 | { |
1094 | dSP; | |
463ee0b2 | 1095 | |
e336de0d GS |
1096 | ENTER; |
1097 | PUSHSTACK(SI_MAGIC); | |
924508f0 | 1098 | PUSHMARK(SP); |
a0d0e21e | 1099 | XPUSHs(mg->mg_obj); |
463ee0b2 | 1100 | PUTBACK; |
a0d0e21e | 1101 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
e336de0d | 1102 | POPSTACK(); |
a60c0954 | 1103 | LEAVE; |
463ee0b2 LW |
1104 | return 0; |
1105 | } | |
1106 | ||
1107 | int | |
8ac85365 | 1108 | magic_nextpack(SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1109 | { |
463ee0b2 | 1110 | dSP; |
a0d0e21e | 1111 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1112 | |
1113 | ENTER; | |
a0d0e21e | 1114 | SAVETMPS; |
e336de0d | 1115 | PUSHSTACK(SI_MAGIC); |
924508f0 GS |
1116 | PUSHMARK(SP); |
1117 | EXTEND(SP, 2); | |
a0d0e21e | 1118 | PUSHs(mg->mg_obj); |
463ee0b2 LW |
1119 | if (SvOK(key)) |
1120 | PUSHs(key); | |
1121 | PUTBACK; | |
1122 | ||
a0d0e21e LW |
1123 | if (perl_call_method(meth, G_SCALAR)) |
1124 | sv_setsv(key, *stack_sp--); | |
463ee0b2 | 1125 | |
e336de0d | 1126 | POPSTACK(); |
a0d0e21e LW |
1127 | FREETMPS; |
1128 | LEAVE; | |
79072805 LW |
1129 | return 0; |
1130 | } | |
1131 | ||
1132 | int | |
8ac85365 | 1133 | magic_existspack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1134 | { |
1135 | return magic_methpack(sv,mg,"EXISTS"); | |
1136 | } | |
1137 | ||
1138 | int | |
8ac85365 | 1139 | magic_setdbline(SV *sv, MAGIC *mg) |
79072805 | 1140 | { |
11343788 | 1141 | dTHR; |
79072805 LW |
1142 | OP *o; |
1143 | I32 i; | |
1144 | GV* gv; | |
1145 | SV** svp; | |
1146 | ||
1147 | gv = DBline; | |
1148 | i = SvTRUE(sv); | |
188ea221 | 1149 | svp = av_fetch(GvAV(gv), |
5aabfad6 | 1150 | atoi(MgPV(mg,na)), FALSE); |
8990e307 | 1151 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 1152 | o->op_private = i; |
79072805 LW |
1153 | else |
1154 | warn("Can't break at that line\n"); | |
1155 | return 0; | |
1156 | } | |
1157 | ||
1158 | int | |
8ac85365 | 1159 | magic_getarylen(SV *sv, MAGIC *mg) |
79072805 | 1160 | { |
0f15f207 | 1161 | dTHR; |
a0d0e21e | 1162 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 LW |
1163 | return 0; |
1164 | } | |
1165 | ||
1166 | int | |
8ac85365 | 1167 | magic_setarylen(SV *sv, MAGIC *mg) |
79072805 | 1168 | { |
0f15f207 | 1169 | dTHR; |
a0d0e21e LW |
1170 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
1171 | return 0; | |
1172 | } | |
1173 | ||
1174 | int | |
8ac85365 | 1175 | magic_getpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1176 | { |
1177 | SV* lsv = LvTARG(sv); | |
1178 | ||
1179 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1180 | mg = mg_find(lsv, 'g'); | |
565764a8 | 1181 | if (mg && mg->mg_len >= 0) { |
0f15f207 | 1182 | dTHR; |
565764a8 | 1183 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); |
a0d0e21e LW |
1184 | return 0; |
1185 | } | |
1186 | } | |
1187 | (void)SvOK_off(sv); | |
1188 | return 0; | |
1189 | } | |
1190 | ||
1191 | int | |
8ac85365 | 1192 | magic_setpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1193 | { |
1194 | SV* lsv = LvTARG(sv); | |
1195 | SSize_t pos; | |
1196 | STRLEN len; | |
1197 | ||
1198 | mg = 0; | |
1199 | ||
1200 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1201 | mg = mg_find(lsv, 'g'); | |
1202 | if (!mg) { | |
1203 | if (!SvOK(sv)) | |
1204 | return 0; | |
1205 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1206 | mg = mg_find(lsv, 'g'); | |
1207 | } | |
1208 | else if (!SvOK(sv)) { | |
565764a8 | 1209 | mg->mg_len = -1; |
a0d0e21e LW |
1210 | return 0; |
1211 | } | |
1212 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1213 | ||
0f15f207 | 1214 | WITH_THR(pos = SvIV(sv) - curcop->cop_arybase); |
a0d0e21e LW |
1215 | if (pos < 0) { |
1216 | pos += len; | |
1217 | if (pos < 0) | |
1218 | pos = 0; | |
1219 | } | |
1220 | else if (pos > len) | |
1221 | pos = len; | |
565764a8 | 1222 | mg->mg_len = pos; |
71be2cbc | 1223 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1224 | |
79072805 LW |
1225 | return 0; |
1226 | } | |
1227 | ||
1228 | int | |
8ac85365 | 1229 | magic_getglob(SV *sv, MAGIC *mg) |
79072805 | 1230 | { |
8646b087 | 1231 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1232 | SvFAKE_off(sv); | |
946ec16e | 1233 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1234 | SvFAKE_on(sv); |
1235 | } | |
1236 | else | |
946ec16e | 1237 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1238 | return 0; |
1239 | } | |
1240 | ||
1241 | int | |
8ac85365 | 1242 | magic_setglob(SV *sv, MAGIC *mg) |
79072805 LW |
1243 | { |
1244 | register char *s; | |
1245 | GV* gv; | |
1246 | ||
1247 | if (!SvOK(sv)) | |
1248 | return 0; | |
463ee0b2 | 1249 | s = SvPV(sv, na); |
79072805 LW |
1250 | if (*s == '*' && s[1]) |
1251 | s++; | |
85e6fe83 | 1252 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1253 | if (sv == (SV*)gv) |
1254 | return 0; | |
1255 | if (GvGP(sv)) | |
88e89b8a | 1256 | gp_free((GV*)sv); |
79072805 | 1257 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1258 | return 0; |
1259 | } | |
1260 | ||
1261 | int | |
6ff81951 GS |
1262 | magic_getsubstr(SV *sv, MAGIC *mg) |
1263 | { | |
1264 | STRLEN len; | |
1265 | SV *lsv = LvTARG(sv); | |
1266 | char *tmps = SvPV(lsv,len); | |
1267 | I32 offs = LvTARGOFF(sv); | |
1268 | I32 rem = LvTARGLEN(sv); | |
1269 | ||
1270 | if (offs > len) | |
1271 | offs = len; | |
1272 | if (rem + offs > len) | |
1273 | rem = len - offs; | |
1274 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
1275 | return 0; | |
1276 | } | |
1277 | ||
1278 | int | |
8ac85365 | 1279 | magic_setsubstr(SV *sv, MAGIC *mg) |
79072805 | 1280 | { |
8990e307 LW |
1281 | STRLEN len; |
1282 | char *tmps = SvPV(sv,len); | |
1283 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1284 | return 0; |
1285 | } | |
1286 | ||
1287 | int | |
8ac85365 | 1288 | magic_gettaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1289 | { |
a863c7d1 | 1290 | dTHR; |
565764a8 DL |
1291 | TAINT_IF((mg->mg_len & 1) || |
1292 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1293 | return 0; |
1294 | } | |
1295 | ||
1296 | int | |
8ac85365 | 1297 | magic_settaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1298 | { |
11343788 | 1299 | dTHR; |
748a9306 LW |
1300 | if (localizing) { |
1301 | if (localizing == 1) | |
565764a8 | 1302 | mg->mg_len <<= 1; |
748a9306 | 1303 | else |
565764a8 | 1304 | mg->mg_len >>= 1; |
a0d0e21e | 1305 | } |
748a9306 | 1306 | else if (tainted) |
565764a8 | 1307 | mg->mg_len |= 1; |
748a9306 | 1308 | else |
565764a8 | 1309 | mg->mg_len &= ~1; |
463ee0b2 LW |
1310 | return 0; |
1311 | } | |
1312 | ||
1313 | int | |
6ff81951 GS |
1314 | magic_getvec(SV *sv, MAGIC *mg) |
1315 | { | |
1316 | SV *lsv = LvTARG(sv); | |
1317 | unsigned char *s; | |
1318 | unsigned long retnum; | |
1319 | STRLEN lsvlen; | |
1320 | I32 len; | |
1321 | I32 offset; | |
1322 | I32 size; | |
1323 | ||
1324 | if (!lsv) { | |
1325 | SvOK_off(sv); | |
1326 | return 0; | |
1327 | } | |
1328 | s = (unsigned char *) SvPV(lsv, lsvlen); | |
1329 | offset = LvTARGOFF(sv); | |
1330 | size = LvTARGLEN(sv); | |
1331 | len = (offset + size + 7) / 8; | |
1332 | ||
1333 | /* Copied from pp_vec() */ | |
1334 | ||
1335 | if (len > lsvlen) { | |
1336 | if (size <= 8) | |
1337 | retnum = 0; | |
1338 | else { | |
1339 | offset >>= 3; | |
1340 | if (size == 16) { | |
1341 | if (offset >= lsvlen) | |
1342 | retnum = 0; | |
1343 | else | |
1344 | retnum = (unsigned long) s[offset] << 8; | |
1345 | } | |
1346 | else if (size == 32) { | |
1347 | if (offset >= lsvlen) | |
1348 | retnum = 0; | |
1349 | else if (offset + 1 >= lsvlen) | |
1350 | retnum = (unsigned long) s[offset] << 24; | |
1351 | else if (offset + 2 >= lsvlen) | |
1352 | retnum = ((unsigned long) s[offset] << 24) + | |
1353 | ((unsigned long) s[offset + 1] << 16); | |
1354 | else | |
1355 | retnum = ((unsigned long) s[offset] << 24) + | |
1356 | ((unsigned long) s[offset + 1] << 16) + | |
1357 | (s[offset + 2] << 8); | |
1358 | } | |
1359 | } | |
1360 | } | |
1361 | else if (size < 8) | |
1362 | retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1); | |
1363 | else { | |
1364 | offset >>= 3; | |
1365 | if (size == 8) | |
1366 | retnum = s[offset]; | |
1367 | else if (size == 16) | |
1368 | retnum = ((unsigned long) s[offset] << 8) + s[offset+1]; | |
1369 | else if (size == 32) | |
1370 | retnum = ((unsigned long) s[offset] << 24) + | |
1371 | ((unsigned long) s[offset + 1] << 16) + | |
1372 | (s[offset + 2] << 8) + s[offset+3]; | |
1373 | } | |
1374 | ||
1375 | sv_setuv(sv, (UV)retnum); | |
1376 | return 0; | |
1377 | } | |
1378 | ||
1379 | int | |
8ac85365 | 1380 | magic_setvec(SV *sv, MAGIC *mg) |
79072805 LW |
1381 | { |
1382 | do_vecset(sv); /* XXX slurp this routine */ | |
1383 | return 0; | |
1384 | } | |
1385 | ||
1386 | int | |
8ac85365 | 1387 | magic_getdefelem(SV *sv, MAGIC *mg) |
5f05dabc | 1388 | { |
71be2cbc | 1389 | SV *targ = Nullsv; |
5f05dabc | 1390 | if (LvTARGLEN(sv)) { |
68dc0745 | 1391 | if (mg->mg_obj) { |
1392 | HV* hv = (HV*)LvTARG(sv); | |
1393 | HE* he = hv_fetch_ent(hv, mg->mg_obj, FALSE, 0); | |
1394 | if (he) | |
1395 | targ = HeVAL(he); | |
1396 | } | |
1397 | else { | |
3c78fafa | 1398 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1399 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1400 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1401 | } | |
1402 | if (targ && targ != &sv_undef) { | |
e858de61 | 1403 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 | 1404 | /* somebody else defined it for us */ |
1405 | SvREFCNT_dec(LvTARG(sv)); | |
1406 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1407 | LvTARGLEN(sv) = 0; | |
1408 | SvREFCNT_dec(mg->mg_obj); | |
1409 | mg->mg_obj = Nullsv; | |
1410 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1411 | } | |
5f05dabc | 1412 | } |
71be2cbc | 1413 | else |
1414 | targ = LvTARG(sv); | |
1415 | sv_setsv(sv, targ ? targ : &sv_undef); | |
1416 | return 0; | |
1417 | } | |
1418 | ||
1419 | int | |
8ac85365 | 1420 | magic_setdefelem(SV *sv, MAGIC *mg) |
71be2cbc | 1421 | { |
1422 | if (LvTARGLEN(sv)) | |
68dc0745 | 1423 | vivify_defelem(sv); |
1424 | if (LvTARG(sv)) { | |
5f05dabc | 1425 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1426 | SvSETMAGIC(LvTARG(sv)); |
1427 | } | |
5f05dabc | 1428 | return 0; |
1429 | } | |
1430 | ||
1431 | int | |
8ac85365 | 1432 | magic_freedefelem(SV *sv, MAGIC *mg) |
5f05dabc | 1433 | { |
1434 | SvREFCNT_dec(LvTARG(sv)); | |
71be2cbc | 1435 | return 0; |
1436 | } | |
1437 | ||
1438 | void | |
8ac85365 | 1439 | vivify_defelem(SV *sv) |
71be2cbc | 1440 | { |
e858de61 | 1441 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
68dc0745 | 1442 | MAGIC* mg; |
1443 | SV* value; | |
71be2cbc | 1444 | |
68dc0745 | 1445 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1446 | return; |
68dc0745 | 1447 | if (mg->mg_obj) { |
1448 | HV* hv = (HV*)LvTARG(sv); | |
1449 | HE* he = hv_fetch_ent(hv, mg->mg_obj, TRUE, 0); | |
1450 | if (!he || (value = HeVAL(he)) == &sv_undef) | |
1451 | croak(no_helem, SvPV(mg->mg_obj, na)); | |
71be2cbc | 1452 | } |
68dc0745 | 1453 | else { |
1454 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1455 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1456 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1457 | else { | |
1458 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
1459 | if (!svp || (value = *svp) == &sv_undef) | |
1460 | croak(no_aelem, (I32)LvTARGOFF(sv)); | |
1461 | } | |
1462 | } | |
3e3baf6d | 1463 | (void)SvREFCNT_inc(value); |
68dc0745 | 1464 | SvREFCNT_dec(LvTARG(sv)); |
1465 | LvTARG(sv) = value; | |
71be2cbc | 1466 | LvTARGLEN(sv) = 0; |
68dc0745 | 1467 | SvREFCNT_dec(mg->mg_obj); |
1468 | mg->mg_obj = Nullsv; | |
1469 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1470 | } |
1471 | ||
1472 | int | |
8ac85365 | 1473 | magic_setmglob(SV *sv, MAGIC *mg) |
93a17b20 | 1474 | { |
565764a8 | 1475 | mg->mg_len = -1; |
c6496cc7 | 1476 | SvSCREAM_off(sv); |
93a17b20 LW |
1477 | return 0; |
1478 | } | |
1479 | ||
1480 | int | |
8ac85365 | 1481 | magic_setbm(SV *sv, MAGIC *mg) |
79072805 | 1482 | { |
463ee0b2 | 1483 | sv_unmagic(sv, 'B'); |
79072805 LW |
1484 | SvVALID_off(sv); |
1485 | return 0; | |
1486 | } | |
1487 | ||
1488 | int | |
8ac85365 | 1489 | magic_setfm(SV *sv, MAGIC *mg) |
55497cff | 1490 | { |
1491 | sv_unmagic(sv, 'f'); | |
1492 | SvCOMPILED_off(sv); | |
1493 | return 0; | |
1494 | } | |
1495 | ||
1496 | int | |
8ac85365 | 1497 | magic_setuvar(SV *sv, MAGIC *mg) |
79072805 LW |
1498 | { |
1499 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1500 | ||
1501 | if (uf && uf->uf_set) | |
1502 | (*uf->uf_set)(uf->uf_index, sv); | |
1503 | return 0; | |
1504 | } | |
1505 | ||
c277df42 IZ |
1506 | int |
1507 | magic_freeregexp(SV *sv, MAGIC *mg) | |
1508 | { | |
1509 | regexp *re = (regexp *)mg->mg_obj; | |
1510 | ReREFCNT_dec(re); | |
1511 | return 0; | |
1512 | } | |
1513 | ||
7a4c00b4 | 1514 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1515 | int |
8ac85365 | 1516 | magic_setcollxfrm(SV *sv, MAGIC *mg) |
bbce6d69 | 1517 | { |
1518 | /* | |
1519 | * René Descartes said "I think not." | |
1520 | * and vanished with a faint plop. | |
1521 | */ | |
7a4c00b4 | 1522 | if (mg->mg_ptr) { |
1523 | Safefree(mg->mg_ptr); | |
1524 | mg->mg_ptr = NULL; | |
565764a8 | 1525 | mg->mg_len = -1; |
7a4c00b4 | 1526 | } |
bbce6d69 | 1527 | return 0; |
1528 | } | |
7a4c00b4 | 1529 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1530 | |
1531 | int | |
8ac85365 | 1532 | magic_set(SV *sv, MAGIC *mg) |
79072805 | 1533 | { |
11343788 | 1534 | dTHR; |
79072805 LW |
1535 | register char *s; |
1536 | I32 i; | |
8990e307 | 1537 | STRLEN len; |
79072805 | 1538 | switch (*mg->mg_ptr) { |
748a9306 LW |
1539 | case '\001': /* ^A */ |
1540 | sv_setsv(bodytarget, sv); | |
1541 | break; | |
79072805 | 1542 | case '\004': /* ^D */ |
8990e307 | 1543 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1544 | DEBUG_x(dump_all()); |
1545 | break; | |
28f23441 | 1546 | case '\005': /* ^E */ |
1547 | #ifdef VMS | |
1548 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1549 | #else | |
22fae026 TM |
1550 | #ifdef WIN32 |
1551 | SetLastError( SvIV(sv) ); | |
1552 | #else | |
f86702cc | 1553 | /* will anyone ever use this? */ |
1554 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
28f23441 | 1555 | #endif |
22fae026 | 1556 | #endif |
28f23441 | 1557 | break; |
79072805 | 1558 | case '\006': /* ^F */ |
463ee0b2 | 1559 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1560 | break; |
a0d0e21e LW |
1561 | case '\010': /* ^H */ |
1562 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1563 | break; | |
79072805 LW |
1564 | case '\t': /* ^I */ |
1565 | if (inplace) | |
1566 | Safefree(inplace); | |
1567 | if (SvOK(sv)) | |
a0d0e21e | 1568 | inplace = savepv(SvPV(sv,na)); |
79072805 LW |
1569 | else |
1570 | inplace = Nullch; | |
1571 | break; | |
28f23441 | 1572 | case '\017': /* ^O */ |
1573 | if (osname) | |
1574 | Safefree(osname); | |
1575 | if (SvOK(sv)) | |
1576 | osname = savepv(SvPV(sv,na)); | |
1577 | else | |
1578 | osname = Nullch; | |
1579 | break; | |
79072805 | 1580 | case '\020': /* ^P */ |
84902520 | 1581 | perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1582 | break; |
1583 | case '\024': /* ^T */ | |
88e89b8a | 1584 | #ifdef BIG_TIME |
1585 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); | |
1586 | #else | |
85e6fe83 | 1587 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1588 | #endif |
79072805 LW |
1589 | break; |
1590 | case '\027': /* ^W */ | |
463ee0b2 | 1591 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1592 | break; |
1593 | case '.': | |
748a9306 LW |
1594 | if (localizing) { |
1595 | if (localizing == 1) | |
1596 | save_sptr((SV**)&last_in_gv); | |
1597 | } | |
88e89b8a | 1598 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e | 1599 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 LW |
1600 | break; |
1601 | case '^': | |
a0d0e21e LW |
1602 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1603 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1604 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1605 | break; |
1606 | case '~': | |
a0d0e21e LW |
1607 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1608 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1609 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1610 | break; |
1611 | case '=': | |
a0d0e21e | 1612 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1613 | break; |
1614 | case '-': | |
a0d0e21e LW |
1615 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1616 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) | |
1617 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; | |
79072805 LW |
1618 | break; |
1619 | case '%': | |
a0d0e21e | 1620 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1621 | break; |
1622 | case '|': | |
4b65379b CS |
1623 | { |
1624 | IO *io = GvIOp(defoutgv); | |
1625 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) | |
1626 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1627 | else { | |
1628 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1629 | PerlIO *ofp = IoOFP(io); | |
1630 | if (ofp) | |
1631 | (void)PerlIO_flush(ofp); | |
1632 | IoFLAGS(io) |= IOf_FLUSH; | |
1633 | } | |
1634 | } | |
79072805 LW |
1635 | } |
1636 | break; | |
1637 | case '*': | |
463ee0b2 | 1638 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1639 | multiline = (i != 0); |
1640 | break; | |
1641 | case '/': | |
c07a80fd | 1642 | SvREFCNT_dec(nrs); |
1643 | nrs = newSVsv(sv); | |
1644 | SvREFCNT_dec(rs); | |
1645 | rs = SvREFCNT_inc(nrs); | |
79072805 LW |
1646 | break; |
1647 | case '\\': | |
1648 | if (ors) | |
1649 | Safefree(ors); | |
e3c19b7b CS |
1650 | if (SvOK(sv) || SvGMAGICAL(sv)) |
1651 | ors = savepv(SvPV(sv,orslen)); | |
1652 | else { | |
1653 | ors = Nullch; | |
1654 | orslen = 0; | |
1655 | } | |
79072805 LW |
1656 | break; |
1657 | case ',': | |
1658 | if (ofs) | |
1659 | Safefree(ofs); | |
a0d0e21e | 1660 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 LW |
1661 | break; |
1662 | case '#': | |
1663 | if (ofmt) | |
1664 | Safefree(ofmt); | |
a0d0e21e | 1665 | ofmt = savepv(SvPV(sv,na)); |
79072805 LW |
1666 | break; |
1667 | case '[': | |
a0d0e21e | 1668 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1669 | break; |
1670 | case '?': | |
ff0cee69 | 1671 | #ifdef COMPLEX_STATUS |
1672 | if (localizing == 2) { | |
1673 | statusvalue = LvTARGOFF(sv); | |
1674 | statusvalue_vms = LvTARGLEN(sv); | |
1675 | } | |
1676 | else | |
1677 | #endif | |
1678 | #ifdef VMSISH_STATUS | |
1679 | if (VMSISH_STATUS) | |
1680 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1681 | else | |
1682 | #endif | |
1683 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1684 | break; |
1685 | case '!': | |
78987ded | 1686 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
f86702cc | 1687 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); |
79072805 LW |
1688 | break; |
1689 | case '<': | |
463ee0b2 | 1690 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1691 | if (delaymagic) { |
1692 | delaymagic |= DM_RUID; | |
1693 | break; /* don't do magic till later */ | |
1694 | } | |
1695 | #ifdef HAS_SETRUID | |
85e6fe83 | 1696 | (void)setruid((Uid_t)uid); |
79072805 LW |
1697 | #else |
1698 | #ifdef HAS_SETREUID | |
85e6fe83 | 1699 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 | 1700 | #else |
85e6fe83 LW |
1701 | #ifdef HAS_SETRESUID |
1702 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); | |
79072805 LW |
1703 | #else |
1704 | if (uid == euid) /* special case $< = $> */ | |
76e3520e | 1705 | (void)PerlProc_setuid(uid); |
a0d0e21e | 1706 | else { |
76e3520e | 1707 | uid = (I32)PerlProc_getuid(); |
463ee0b2 | 1708 | croak("setruid() not implemented"); |
a0d0e21e | 1709 | } |
79072805 LW |
1710 | #endif |
1711 | #endif | |
85e6fe83 | 1712 | #endif |
76e3520e | 1713 | uid = (I32)PerlProc_getuid(); |
4633a7c4 | 1714 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1715 | break; |
1716 | case '>': | |
463ee0b2 | 1717 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1718 | if (delaymagic) { |
1719 | delaymagic |= DM_EUID; | |
1720 | break; /* don't do magic till later */ | |
1721 | } | |
1722 | #ifdef HAS_SETEUID | |
85e6fe83 | 1723 | (void)seteuid((Uid_t)euid); |
79072805 LW |
1724 | #else |
1725 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1726 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1727 | #else | |
1728 | #ifdef HAS_SETRESUID | |
1729 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); | |
79072805 LW |
1730 | #else |
1731 | if (euid == uid) /* special case $> = $< */ | |
76e3520e | 1732 | PerlProc_setuid(euid); |
a0d0e21e | 1733 | else { |
76e3520e | 1734 | euid = (I32)PerlProc_geteuid(); |
463ee0b2 | 1735 | croak("seteuid() not implemented"); |
a0d0e21e | 1736 | } |
79072805 LW |
1737 | #endif |
1738 | #endif | |
85e6fe83 | 1739 | #endif |
76e3520e | 1740 | euid = (I32)PerlProc_geteuid(); |
4633a7c4 | 1741 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1742 | break; |
1743 | case '(': | |
463ee0b2 | 1744 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1745 | if (delaymagic) { |
1746 | delaymagic |= DM_RGID; | |
1747 | break; /* don't do magic till later */ | |
1748 | } | |
1749 | #ifdef HAS_SETRGID | |
85e6fe83 | 1750 | (void)setrgid((Gid_t)gid); |
79072805 LW |
1751 | #else |
1752 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1753 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1754 | #else | |
1755 | #ifdef HAS_SETRESGID | |
1756 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); | |
79072805 LW |
1757 | #else |
1758 | if (gid == egid) /* special case $( = $) */ | |
76e3520e | 1759 | (void)PerlProc_setgid(gid); |
748a9306 | 1760 | else { |
76e3520e | 1761 | gid = (I32)PerlProc_getgid(); |
463ee0b2 | 1762 | croak("setrgid() not implemented"); |
748a9306 | 1763 | } |
79072805 LW |
1764 | #endif |
1765 | #endif | |
85e6fe83 | 1766 | #endif |
76e3520e | 1767 | gid = (I32)PerlProc_getgid(); |
4633a7c4 | 1768 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1769 | break; |
1770 | case ')': | |
5cd24f17 | 1771 | #ifdef HAS_SETGROUPS |
1772 | { | |
1773 | char *p = SvPV(sv, na); | |
1774 | Groups_t gary[NGROUPS]; | |
1775 | ||
1776 | SET_NUMERIC_STANDARD(); | |
1777 | while (isSPACE(*p)) | |
1778 | ++p; | |
1779 | egid = I_V(atof(p)); | |
1780 | for (i = 0; i < NGROUPS; ++i) { | |
1781 | while (*p && !isSPACE(*p)) | |
1782 | ++p; | |
1783 | while (isSPACE(*p)) | |
1784 | ++p; | |
1785 | if (!*p) | |
1786 | break; | |
1787 | gary[i] = I_V(atof(p)); | |
1788 | } | |
8cc95fdb | 1789 | if (i) |
1790 | (void)setgroups(i, gary); | |
5cd24f17 | 1791 | } |
1792 | #else /* HAS_SETGROUPS */ | |
463ee0b2 | 1793 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1794 | #endif /* HAS_SETGROUPS */ |
79072805 LW |
1795 | if (delaymagic) { |
1796 | delaymagic |= DM_EGID; | |
1797 | break; /* don't do magic till later */ | |
1798 | } | |
1799 | #ifdef HAS_SETEGID | |
85e6fe83 | 1800 | (void)setegid((Gid_t)egid); |
79072805 LW |
1801 | #else |
1802 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1803 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1804 | #else | |
1805 | #ifdef HAS_SETRESGID | |
1806 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); | |
79072805 LW |
1807 | #else |
1808 | if (egid == gid) /* special case $) = $( */ | |
76e3520e | 1809 | (void)PerlProc_setgid(egid); |
748a9306 | 1810 | else { |
76e3520e | 1811 | egid = (I32)PerlProc_getegid(); |
463ee0b2 | 1812 | croak("setegid() not implemented"); |
748a9306 | 1813 | } |
79072805 LW |
1814 | #endif |
1815 | #endif | |
85e6fe83 | 1816 | #endif |
76e3520e | 1817 | egid = (I32)PerlProc_getegid(); |
4633a7c4 | 1818 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1819 | break; |
1820 | case ':': | |
a0d0e21e | 1821 | chopset = SvPV_force(sv,na); |
79072805 LW |
1822 | break; |
1823 | case '0': | |
1824 | if (!origalen) { | |
1825 | s = origargv[0]; | |
1826 | s += strlen(s); | |
1827 | /* See if all the arguments are contiguous in memory */ | |
1828 | for (i = 1; i < origargc; i++) { | |
fb73857a | 1829 | if (origargv[i] == s + 1 |
1830 | #ifdef OS2 | |
1831 | || origargv[i] == s + 2 | |
1832 | #endif | |
1833 | ) | |
79072805 | 1834 | s += strlen(++s); /* this one is ok too */ |
fb73857a | 1835 | else |
1836 | break; | |
79072805 | 1837 | } |
bbce6d69 | 1838 | /* can grab env area too? */ |
fb73857a | 1839 | if (origenviron && (origenviron[0] == s + 1 |
1840 | #ifdef OS2 | |
1841 | || (origenviron[0] == s + 9 && (s += 8)) | |
1842 | #endif | |
1843 | )) { | |
66b1d557 | 1844 | my_setenv("NoNe SuCh", Nullch); |
79072805 LW |
1845 | /* force copy of environment */ |
1846 | for (i = 0; origenviron[i]; i++) | |
1847 | if (origenviron[i] == s + 1) | |
1848 | s += strlen(++s); | |
fb73857a | 1849 | else |
1850 | break; | |
79072805 LW |
1851 | } |
1852 | origalen = s - origargv[0]; | |
1853 | } | |
a0d0e21e | 1854 | s = SvPV_force(sv,len); |
8990e307 | 1855 | i = len; |
79072805 LW |
1856 | if (i >= origalen) { |
1857 | i = origalen; | |
fb73857a | 1858 | /* don't allow system to limit $0 seen by script */ |
1859 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
79072805 | 1860 | Copy(s, origargv[0], i, char); |
fb73857a | 1861 | s = origargv[0]+i; |
1862 | *s = '\0'; | |
79072805 LW |
1863 | } |
1864 | else { | |
1865 | Copy(s, origargv[0], i, char); | |
1866 | s = origargv[0]+i; | |
1867 | *s++ = '\0'; | |
1868 | while (++i < origalen) | |
8990e307 LW |
1869 | *s++ = ' '; |
1870 | s = origargv[0]+i; | |
ed6116ce | 1871 | for (i = 1; i < origargc; i++) |
8990e307 | 1872 | origargv[i] = Nullch; |
79072805 LW |
1873 | } |
1874 | break; | |
a863c7d1 MB |
1875 | #ifdef USE_THREADS |
1876 | case '@': | |
38a03e6e | 1877 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
1878 | break; |
1879 | #endif /* USE_THREADS */ | |
79072805 LW |
1880 | } |
1881 | return 0; | |
1882 | } | |
1883 | ||
f93b4edd MB |
1884 | #ifdef USE_THREADS |
1885 | int | |
8ac85365 | 1886 | magic_mutexfree(SV *sv, MAGIC *mg) |
f93b4edd MB |
1887 | { |
1888 | dTHR; | |
bc1f4c86 MB |
1889 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
1890 | (unsigned long)thr, (unsigned long)sv);) | |
f93b4edd MB |
1891 | if (MgOWNER(mg)) |
1892 | croak("panic: magic_mutexfree"); | |
1893 | MUTEX_DESTROY(MgMUTEXP(mg)); | |
1894 | COND_DESTROY(MgCONDP(mg)); | |
e55aaa0e | 1895 | SvREFCNT_dec(sv); |
f93b4edd MB |
1896 | return 0; |
1897 | } | |
1898 | #endif /* USE_THREADS */ | |
1899 | ||
79072805 | 1900 | I32 |
8ac85365 | 1901 | whichsig(char *sig) |
79072805 LW |
1902 | { |
1903 | register char **sigv; | |
1904 | ||
1905 | for (sigv = sig_name+1; *sigv; sigv++) | |
1906 | if (strEQ(sig,*sigv)) | |
8e07c86e | 1907 | return sig_num[sigv - sig_name]; |
79072805 LW |
1908 | #ifdef SIGCLD |
1909 | if (strEQ(sig,"CHLD")) | |
1910 | return SIGCLD; | |
1911 | #endif | |
1912 | #ifdef SIGCHLD | |
1913 | if (strEQ(sig,"CLD")) | |
1914 | return SIGCHLD; | |
1915 | #endif | |
1916 | return 0; | |
1917 | } | |
1918 | ||
84902520 TB |
1919 | static SV* sig_sv; |
1920 | ||
76e3520e | 1921 | STATIC void |
8ac85365 | 1922 | unwind_handler_stack(void *p) |
84902520 | 1923 | { |
ff26ac79 | 1924 | dTHR; |
84902520 TB |
1925 | U32 flags = *(U32*)p; |
1926 | ||
1927 | if (flags & 1) | |
1928 | savestack_ix -= 5; /* Unprotect save in progress. */ | |
1929 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
1930 | if (flags & 64) | |
1931 | SvREFCNT_dec(sig_sv); | |
1932 | } | |
1933 | ||
ecfc5424 | 1934 | Signal_t |
8ac85365 | 1935 | sighandler(int sig) |
79072805 LW |
1936 | { |
1937 | dSP; | |
00d579c5 | 1938 | GV *gv = Nullgv; |
a0d0e21e | 1939 | HV *st; |
84902520 | 1940 | SV *sv, *tSv = Sv; |
00d579c5 | 1941 | CV *cv = Nullcv; |
84902520 TB |
1942 | OP *myop = op; |
1943 | U32 flags = 0; | |
1944 | I32 o_save_i = savestack_ix, type; | |
84902520 TB |
1945 | XPV *tXpv = Xpv; |
1946 | ||
1947 | if (savestack_ix + 15 <= savestack_max) | |
1948 | flags |= 1; | |
84902520 TB |
1949 | if (markstack_ptr < markstack_max - 2) |
1950 | flags |= 4; | |
1951 | if (retstack_ix < retstack_max - 2) | |
1952 | flags |= 8; | |
1953 | if (scopestack_ix < scopestack_max - 3) | |
1954 | flags |= 16; | |
1955 | ||
ff0cee69 | 1956 | if (!psig_ptr[sig]) |
1957 | die("Signal SIG%s received, but no signal handler set.\n", | |
1958 | sig_name[sig]); | |
1959 | ||
84902520 TB |
1960 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
1961 | infinity, so we fix 4 (in fact 5): */ | |
1962 | if (flags & 1) { | |
1963 | savestack_ix += 5; /* Protect save in progress. */ | |
1964 | o_save_i = savestack_ix; | |
565764a8 | 1965 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); |
84902520 TB |
1966 | } |
1967 | if (flags & 4) | |
1968 | markstack_ptr++; /* Protect mark. */ | |
1969 | if (flags & 8) { | |
1970 | retstack_ix++; | |
1971 | retstack[retstack_ix] = NULL; | |
1972 | } | |
1973 | if (flags & 16) | |
1974 | scopestack_ix += 1; | |
1975 | /* sv_2cv is too complicated, try a simpler variant first: */ | |
1976 | if (!SvROK(psig_ptr[sig]) || !(cv = (CV*)SvRV(psig_ptr[sig])) | |
1977 | || SvTYPE(cv) != SVt_PVCV) | |
1978 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); | |
1979 | ||
a0d0e21e | 1980 | if (!cv || !CvROOT(cv)) { |
79072805 LW |
1981 | if (dowarn) |
1982 | warn("SIG%s handler \"%s\" not defined.\n", | |
00d579c5 GS |
1983 | sig_name[sig], (gv ? GvENAME(gv) |
1984 | : ((cv && CvGV(cv)) | |
1985 | ? GvENAME(CvGV(cv)) | |
1986 | : "__ANON__"))); | |
1987 | goto cleanup; | |
79072805 LW |
1988 | } |
1989 | ||
84902520 | 1990 | if(psig_name[sig]) { |
88e89b8a | 1991 | sv = SvREFCNT_inc(psig_name[sig]); |
84902520 TB |
1992 | flags |= 64; |
1993 | sig_sv = sv; | |
1994 | } else { | |
ff0cee69 | 1995 | sv = sv_newmortal(); |
1996 | sv_setpv(sv,sig_name[sig]); | |
88e89b8a | 1997 | } |
e336de0d GS |
1998 | |
1999 | PUSHSTACK(SI_SIGNAL); | |
924508f0 | 2000 | PUSHMARK(SP); |
79072805 | 2001 | PUSHs(sv); |
79072805 | 2002 | PUTBACK; |
a0d0e21e LW |
2003 | |
2004 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 | 2005 | |
e336de0d | 2006 | POPSTACK(); |
00d579c5 | 2007 | cleanup: |
84902520 TB |
2008 | if (flags & 1) |
2009 | savestack_ix -= 8; /* Unprotect save in progress. */ | |
84902520 TB |
2010 | if (flags & 4) |
2011 | markstack_ptr--; | |
2012 | if (flags & 8) | |
2013 | retstack_ix--; | |
2014 | if (flags & 16) | |
2015 | scopestack_ix -= 1; | |
2016 | if (flags & 64) | |
2017 | SvREFCNT_dec(sv); | |
2018 | op = myop; /* Apparently not needed... */ | |
2019 | ||
2020 | Sv = tSv; /* Restore global temporaries. */ | |
2021 | Xpv = tXpv; | |
79072805 LW |
2022 | return; |
2023 | } | |
4e35701f NIS |
2024 | |
2025 |