Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
9607fc9c | 3 | * Copyright (c) 1991-1997, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "Sam sat on the ground and put his head in his hands. 'I wish I had never | |
12 | * come here, and I don't want to see no more magic,' he said, and fell silent." | |
79072805 LW |
13 | */ |
14 | ||
15 | #include "EXTERN.h" | |
16 | #include "perl.h" | |
17 | ||
e6d9441c | 18 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e LW |
19 | #ifdef I_UNISTD |
20 | # include <unistd.h> | |
21 | #endif | |
a0d0e21e | 22 | |
5cd24f17 | 23 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
24 | # ifndef NGROUPS |
25 | # define NGROUPS 32 | |
26 | # endif | |
27 | #endif | |
28 | ||
c07a80fd | 29 | /* |
30 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
31 | */ | |
32 | ||
33 | struct magic_state { | |
34 | SV* mgs_sv; | |
35 | U32 mgs_flags; | |
36 | }; | |
37 | typedef struct magic_state MGS; | |
38 | ||
39 | static void restore_magic _((void *p)); | |
40 | ||
48e43a1c | 41 | static void |
8ac85365 | 42 | save_magic(MGS *mgs, SV *sv) |
c07a80fd | 43 | { |
c07a80fd | 44 | assert(SvMAGICAL(sv)); |
45 | ||
c07a80fd | 46 | mgs->mgs_sv = sv; |
47 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
48 | SAVEDESTRUCTOR(restore_magic, mgs); | |
49 | ||
50 | SvMAGICAL_off(sv); | |
51 | SvREADONLY_off(sv); | |
52 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
c07a80fd | 53 | } |
54 | ||
55 | static void | |
8ac85365 | 56 | restore_magic(void *p) |
c07a80fd | 57 | { |
48e43a1c | 58 | MGS* mgs = (MGS*)p; |
c07a80fd | 59 | SV* sv = mgs->mgs_sv; |
60 | ||
61 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
62 | { | |
63 | if (mgs->mgs_flags) | |
64 | SvFLAGS(sv) |= mgs->mgs_flags; | |
65 | else | |
66 | mg_magical(sv); | |
67 | if (SvGMAGICAL(sv)) | |
68 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
69 | } | |
c07a80fd | 70 | } |
71 | ||
8e07c86e | 72 | |
8990e307 | 73 | void |
8ac85365 | 74 | mg_magical(SV *sv) |
8990e307 LW |
75 | { |
76 | MAGIC* mg; | |
77 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
78 | MGVTBL* vtbl = mg->mg_virtual; | |
79 | if (vtbl) { | |
a0d0e21e | 80 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
81 | SvGMAGICAL_on(sv); |
82 | if (vtbl->svt_set) | |
83 | SvSMAGICAL_on(sv); | |
84 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) | |
85 | SvRMAGICAL_on(sv); | |
86 | } | |
87 | } | |
88 | } | |
89 | ||
79072805 | 90 | int |
8ac85365 | 91 | mg_get(SV *sv) |
79072805 | 92 | { |
48e43a1c | 93 | MGS mgs; |
79072805 | 94 | MAGIC* mg; |
c6496cc7 | 95 | MAGIC** mgp; |
760ac839 | 96 | int mgp_valid = 0; |
463ee0b2 | 97 | |
c07a80fd | 98 | ENTER; |
48e43a1c | 99 | save_magic(&mgs, sv); |
463ee0b2 | 100 | |
c6496cc7 | 101 | mgp = &SvMAGIC(sv); |
102 | while ((mg = *mgp) != 0) { | |
79072805 | 103 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e | 104 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
79072805 | 105 | (*vtbl->svt_get)(sv, mg); |
c6496cc7 | 106 | /* Ignore this magic if it's been deleted */ |
48e43a1c CS |
107 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
108 | (mg->mg_flags & MGf_GSKIP)) | |
109 | mgs.mgs_flags = 0; | |
a0d0e21e | 110 | } |
c6496cc7 | 111 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 112 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 113 | mgp = &mg->mg_moremagic; |
760ac839 LW |
114 | mgp_valid = 1; |
115 | } | |
116 | else | |
117 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 118 | } |
463ee0b2 | 119 | |
c07a80fd | 120 | LEAVE; |
79072805 LW |
121 | return 0; |
122 | } | |
123 | ||
124 | int | |
8ac85365 | 125 | mg_set(SV *sv) |
79072805 | 126 | { |
48e43a1c | 127 | MGS mgs; |
79072805 | 128 | MAGIC* mg; |
463ee0b2 LW |
129 | MAGIC* nextmg; |
130 | ||
c07a80fd | 131 | ENTER; |
48e43a1c | 132 | save_magic(&mgs, sv); |
463ee0b2 LW |
133 | |
134 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 135 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 136 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
137 | if (mg->mg_flags & MGf_GSKIP) { |
138 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
48e43a1c | 139 | mgs.mgs_flags = 0; |
a0d0e21e | 140 | } |
79072805 LW |
141 | if (vtbl && vtbl->svt_set) |
142 | (*vtbl->svt_set)(sv, mg); | |
143 | } | |
463ee0b2 | 144 | |
c07a80fd | 145 | LEAVE; |
79072805 LW |
146 | return 0; |
147 | } | |
148 | ||
149 | U32 | |
8ac85365 | 150 | mg_len(SV *sv) |
79072805 LW |
151 | { |
152 | MAGIC* mg; | |
748a9306 | 153 | char *junk; |
463ee0b2 | 154 | STRLEN len; |
463ee0b2 | 155 | |
79072805 LW |
156 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
157 | MGVTBL* vtbl = mg->mg_virtual; | |
85e6fe83 | 158 | if (vtbl && vtbl->svt_len) { |
48e43a1c CS |
159 | MGS mgs; |
160 | ||
c07a80fd | 161 | ENTER; |
48e43a1c | 162 | save_magic(&mgs, sv); |
a0d0e21e | 163 | /* omit MGf_GSKIP -- not changed here */ |
85e6fe83 | 164 | len = (*vtbl->svt_len)(sv, mg); |
c07a80fd | 165 | LEAVE; |
85e6fe83 LW |
166 | return len; |
167 | } | |
168 | } | |
169 | ||
748a9306 | 170 | junk = SvPV(sv, len); |
463ee0b2 | 171 | return len; |
79072805 LW |
172 | } |
173 | ||
174 | int | |
8ac85365 | 175 | mg_clear(SV *sv) |
79072805 | 176 | { |
48e43a1c | 177 | MGS mgs; |
79072805 | 178 | MAGIC* mg; |
463ee0b2 | 179 | |
c07a80fd | 180 | ENTER; |
48e43a1c | 181 | save_magic(&mgs, sv); |
463ee0b2 | 182 | |
79072805 LW |
183 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
184 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
185 | /* omit GSKIP -- never set here */ |
186 | ||
79072805 LW |
187 | if (vtbl && vtbl->svt_clear) |
188 | (*vtbl->svt_clear)(sv, mg); | |
189 | } | |
463ee0b2 | 190 | |
c07a80fd | 191 | LEAVE; |
79072805 LW |
192 | return 0; |
193 | } | |
194 | ||
93a17b20 | 195 | MAGIC* |
8ac85365 | 196 | mg_find(SV *sv, int type) |
93a17b20 LW |
197 | { |
198 | MAGIC* mg; | |
93a17b20 LW |
199 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
200 | if (mg->mg_type == type) | |
201 | return mg; | |
202 | } | |
203 | return 0; | |
204 | } | |
205 | ||
79072805 | 206 | int |
8ac85365 | 207 | mg_copy(SV *sv, SV *nsv, char *key, I32 klen) |
79072805 | 208 | { |
463ee0b2 | 209 | int count = 0; |
79072805 | 210 | MAGIC* mg; |
463ee0b2 LW |
211 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
212 | if (isUPPER(mg->mg_type)) { | |
a0d0e21e | 213 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 214 | count++; |
79072805 | 215 | } |
79072805 | 216 | } |
463ee0b2 | 217 | return count; |
79072805 LW |
218 | } |
219 | ||
220 | int | |
8ac85365 | 221 | mg_free(SV *sv) |
79072805 LW |
222 | { |
223 | MAGIC* mg; | |
224 | MAGIC* moremagic; | |
225 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
226 | MGVTBL* vtbl = mg->mg_virtual; | |
227 | moremagic = mg->mg_moremagic; | |
228 | if (vtbl && vtbl->svt_free) | |
229 | (*vtbl->svt_free)(sv, mg); | |
93a17b20 | 230 | if (mg->mg_ptr && mg->mg_type != 'g') |
88e89b8a | 231 | if (mg->mg_len >= 0) |
232 | Safefree(mg->mg_ptr); | |
233 | else if (mg->mg_len == HEf_SVKEY) | |
234 | SvREFCNT_dec((SV*)mg->mg_ptr); | |
85e6fe83 | 235 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 236 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
237 | Safefree(mg); |
238 | } | |
239 | SvMAGIC(sv) = 0; | |
240 | return 0; | |
241 | } | |
242 | ||
243 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
244 | #include <signal.h> | |
245 | #endif | |
246 | ||
93a17b20 | 247 | U32 |
8ac85365 | 248 | magic_len(SV *sv, MAGIC *mg) |
93a17b20 | 249 | { |
a863c7d1 | 250 | dTHR; |
93a17b20 LW |
251 | register I32 paren; |
252 | register char *s; | |
253 | register I32 i; | |
bbce6d69 | 254 | register REGEXP *rx; |
748a9306 | 255 | char *t; |
93a17b20 LW |
256 | |
257 | switch (*mg->mg_ptr) { | |
258 | case '1': case '2': case '3': case '4': | |
259 | case '5': case '6': case '7': case '8': case '9': case '&': | |
bbce6d69 | 260 | if (curpm && (rx = curpm->op_pmregexp)) { |
93a17b20 LW |
261 | paren = atoi(mg->mg_ptr); |
262 | getparen: | |
bbce6d69 | 263 | if (paren <= rx->nparens && |
264 | (s = rx->startp[paren]) && | |
265 | (t = rx->endp[paren])) | |
266 | { | |
748a9306 | 267 | i = t - s; |
71be2cbc | 268 | if (i >= 0) |
93a17b20 | 269 | return i; |
93a17b20 | 270 | } |
93a17b20 | 271 | } |
748a9306 | 272 | return 0; |
93a17b20 | 273 | case '+': |
bbce6d69 | 274 | if (curpm && (rx = curpm->op_pmregexp)) { |
275 | paren = rx->lastparen; | |
13f57bf8 CS |
276 | if (paren) |
277 | goto getparen; | |
93a17b20 | 278 | } |
748a9306 | 279 | return 0; |
93a17b20 | 280 | case '`': |
bbce6d69 | 281 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 | 282 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 | 283 | i = rx->startp[0] - s; |
71be2cbc | 284 | if (i >= 0) |
93a17b20 | 285 | return i; |
93a17b20 | 286 | } |
93a17b20 | 287 | } |
748a9306 | 288 | return 0; |
93a17b20 | 289 | case '\'': |
bbce6d69 | 290 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 CS |
291 | if (rx->subend && (s = rx->endp[0])) { |
292 | i = rx->subend - s; | |
293 | if (i >= 0) | |
5cd24f17 | 294 | return i; |
93a17b20 | 295 | } |
93a17b20 | 296 | } |
748a9306 | 297 | return 0; |
93a17b20 LW |
298 | case ',': |
299 | return (STRLEN)ofslen; | |
300 | case '\\': | |
301 | return (STRLEN)orslen; | |
302 | } | |
303 | magic_get(sv,mg); | |
304 | if (!SvPOK(sv) && SvNIOK(sv)) | |
463ee0b2 | 305 | sv_2pv(sv, &na); |
93a17b20 LW |
306 | if (SvPOK(sv)) |
307 | return SvCUR(sv); | |
308 | return 0; | |
309 | } | |
310 | ||
79072805 | 311 | int |
8ac85365 | 312 | magic_get(SV *sv, MAGIC *mg) |
79072805 | 313 | { |
a863c7d1 | 314 | dTHR; |
79072805 LW |
315 | register I32 paren; |
316 | register char *s; | |
317 | register I32 i; | |
bbce6d69 | 318 | register REGEXP *rx; |
748a9306 | 319 | char *t; |
79072805 LW |
320 | |
321 | switch (*mg->mg_ptr) { | |
748a9306 LW |
322 | case '\001': /* ^A */ |
323 | sv_setsv(sv, bodytarget); | |
324 | break; | |
79072805 | 325 | case '\004': /* ^D */ |
188ea221 | 326 | sv_setiv(sv, (IV)(debug & 32767)); |
79072805 | 327 | break; |
28f23441 | 328 | case '\005': /* ^E */ |
329 | #ifdef VMS | |
330 | { | |
331 | # include <descrip.h> | |
332 | # include <starlet.h> | |
333 | char msg[255]; | |
334 | $DESCRIPTOR(msgdsc,msg); | |
946ec16e | 335 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 | 336 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
337 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
338 | else | |
339 | sv_setpv(sv,""); | |
340 | } | |
341 | #else | |
88e89b8a | 342 | #ifdef OS2 |
fb73857a | 343 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
344 | sv_setnv(sv, (double)errno); | |
345 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
346 | } else { | |
347 | if (errno != errno_isOS2) | |
348 | Perl_rc = _syserrno(); | |
349 | sv_setnv(sv, (double)Perl_rc); | |
350 | sv_setpv(sv, os2error(Perl_rc)); | |
351 | } | |
88e89b8a | 352 | #else |
946ec16e | 353 | sv_setnv(sv, (double)errno); |
28f23441 | 354 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
355 | #endif | |
88e89b8a | 356 | #endif |
946ec16e | 357 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 358 | break; |
79072805 | 359 | case '\006': /* ^F */ |
188ea221 | 360 | sv_setiv(sv, (IV)maxsysfd); |
79072805 | 361 | break; |
a0d0e21e | 362 | case '\010': /* ^H */ |
188ea221 | 363 | sv_setiv(sv, (IV)hints); |
a0d0e21e | 364 | break; |
79072805 LW |
365 | case '\t': /* ^I */ |
366 | if (inplace) | |
367 | sv_setpv(sv, inplace); | |
368 | else | |
188ea221 | 369 | sv_setsv(sv, &sv_undef); |
79072805 | 370 | break; |
28f23441 | 371 | case '\017': /* ^O */ |
188ea221 | 372 | sv_setpv(sv, osname); |
28f23441 | 373 | break; |
79072805 | 374 | case '\020': /* ^P */ |
188ea221 | 375 | sv_setiv(sv, (IV)perldb); |
79072805 | 376 | break; |
fb73857a | 377 | case '\023': /* ^S */ |
d58bf5aa MB |
378 | { |
379 | dTHR; | |
380 | if (lex_state != LEX_NOTPARSING) | |
381 | SvOK_off(sv); | |
382 | else if (in_eval) | |
383 | sv_setiv(sv, 1); | |
384 | else | |
385 | sv_setiv(sv, 0); | |
386 | } | |
fb73857a | 387 | break; |
79072805 | 388 | case '\024': /* ^T */ |
88e89b8a | 389 | #ifdef BIG_TIME |
188ea221 | 390 | sv_setnv(sv, basetime); |
88e89b8a | 391 | #else |
188ea221 | 392 | sv_setiv(sv, (IV)basetime); |
88e89b8a | 393 | #endif |
79072805 LW |
394 | break; |
395 | case '\027': /* ^W */ | |
188ea221 | 396 | sv_setiv(sv, (IV)dowarn); |
79072805 LW |
397 | break; |
398 | case '1': case '2': case '3': case '4': | |
399 | case '5': case '6': case '7': case '8': case '9': case '&': | |
bbce6d69 | 400 | if (curpm && (rx = curpm->op_pmregexp)) { |
a863c7d1 MB |
401 | /* |
402 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
403 | * XXX Does the new way break anything? | |
404 | */ | |
405 | paren = atoi(mg->mg_ptr); | |
79072805 | 406 | getparen: |
bbce6d69 | 407 | if (paren <= rx->nparens && |
408 | (s = rx->startp[paren]) && | |
409 | (t = rx->endp[paren])) | |
410 | { | |
748a9306 | 411 | i = t - s; |
13f57bf8 | 412 | getrx: |
748a9306 | 413 | if (i >= 0) { |
13f57bf8 CS |
414 | bool was_tainted; |
415 | if (tainting) { | |
416 | was_tainted = tainted; | |
417 | tainted = FALSE; | |
418 | } | |
79072805 | 419 | sv_setpvn(sv,s,i); |
13f57bf8 | 420 | if (tainting) |
c277df42 | 421 | tainted = was_tainted || RX_MATCH_TAINTED(rx); |
748a9306 LW |
422 | break; |
423 | } | |
79072805 | 424 | } |
79072805 | 425 | } |
748a9306 | 426 | sv_setsv(sv,&sv_undef); |
79072805 LW |
427 | break; |
428 | case '+': | |
bbce6d69 | 429 | if (curpm && (rx = curpm->op_pmregexp)) { |
430 | paren = rx->lastparen; | |
a0d0e21e LW |
431 | if (paren) |
432 | goto getparen; | |
79072805 | 433 | } |
748a9306 | 434 | sv_setsv(sv,&sv_undef); |
79072805 LW |
435 | break; |
436 | case '`': | |
bbce6d69 | 437 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 | 438 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 | 439 | i = rx->startp[0] - s; |
13f57bf8 | 440 | goto getrx; |
79072805 | 441 | } |
79072805 | 442 | } |
748a9306 | 443 | sv_setsv(sv,&sv_undef); |
79072805 LW |
444 | break; |
445 | case '\'': | |
bbce6d69 | 446 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 CS |
447 | if (rx->subend && (s = rx->endp[0])) { |
448 | i = rx->subend - s; | |
449 | goto getrx; | |
79072805 | 450 | } |
79072805 | 451 | } |
748a9306 | 452 | sv_setsv(sv,&sv_undef); |
79072805 LW |
453 | break; |
454 | case '.': | |
455 | #ifndef lint | |
a0d0e21e | 456 | if (GvIO(last_in_gv)) { |
188ea221 | 457 | sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv))); |
79072805 LW |
458 | } |
459 | #endif | |
460 | break; | |
461 | case '?': | |
809a5acc MB |
462 | { |
463 | dTHR; | |
464 | sv_setiv(sv, (IV)STATUS_CURRENT); | |
ff0cee69 | 465 | #ifdef COMPLEX_STATUS |
809a5acc MB |
466 | LvTARGOFF(sv) = statusvalue; |
467 | LvTARGLEN(sv) = statusvalue_vms; | |
ff0cee69 | 468 | #endif |
809a5acc | 469 | } |
79072805 LW |
470 | break; |
471 | case '^': | |
a0d0e21e | 472 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 LW |
473 | if (s) |
474 | sv_setpv(sv,s); | |
475 | else { | |
476 | sv_setpv(sv,GvENAME(defoutgv)); | |
477 | sv_catpv(sv,"_TOP"); | |
478 | } | |
479 | break; | |
480 | case '~': | |
a0d0e21e | 481 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 LW |
482 | if (!s) |
483 | s = GvENAME(defoutgv); | |
484 | sv_setpv(sv,s); | |
485 | break; | |
486 | #ifndef lint | |
487 | case '=': | |
188ea221 | 488 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 LW |
489 | break; |
490 | case '-': | |
188ea221 | 491 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 LW |
492 | break; |
493 | case '%': | |
188ea221 | 494 | sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv))); |
79072805 LW |
495 | break; |
496 | #endif | |
497 | case ':': | |
498 | break; | |
499 | case '/': | |
500 | break; | |
501 | case '[': | |
0f15f207 | 502 | WITH_THR(sv_setiv(sv, (IV)curcop->cop_arybase)); |
79072805 LW |
503 | break; |
504 | case '|': | |
188ea221 | 505 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
506 | break; |
507 | case ',': | |
508 | sv_setpvn(sv,ofs,ofslen); | |
509 | break; | |
510 | case '\\': | |
511 | sv_setpvn(sv,ors,orslen); | |
512 | break; | |
513 | case '#': | |
514 | sv_setpv(sv,ofmt); | |
515 | break; | |
516 | case '!': | |
a5f75d66 | 517 | #ifdef VMS |
946ec16e | 518 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 519 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 520 | #else |
88e89b8a | 521 | { |
522 | int saveerrno = errno; | |
946ec16e | 523 | sv_setnv(sv, (double)errno); |
88e89b8a | 524 | #ifdef OS2 |
525 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
526 | else | |
a5f75d66 | 527 | #endif |
2304df62 | 528 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 529 | errno = saveerrno; |
530 | } | |
531 | #endif | |
946ec16e | 532 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
533 | break; |
534 | case '<': | |
188ea221 | 535 | sv_setiv(sv, (IV)uid); |
79072805 LW |
536 | break; |
537 | case '>': | |
188ea221 | 538 | sv_setiv(sv, (IV)euid); |
79072805 LW |
539 | break; |
540 | case '(': | |
188ea221 | 541 | sv_setiv(sv, (IV)gid); |
fc36a67e | 542 | sv_setpvf(sv, "%Vd", (IV)gid); |
79072805 LW |
543 | goto add_groups; |
544 | case ')': | |
188ea221 | 545 | sv_setiv(sv, (IV)egid); |
fc36a67e | 546 | sv_setpvf(sv, "%Vd", (IV)egid); |
79072805 | 547 | add_groups: |
79072805 | 548 | #ifdef HAS_GETGROUPS |
79072805 | 549 | { |
a0d0e21e | 550 | Groups_t gary[NGROUPS]; |
79072805 | 551 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 552 | while (--i >= 0) |
fc36a67e | 553 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 LW |
554 | } |
555 | #endif | |
29355cf7 | 556 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
557 | break; |
558 | case '*': | |
559 | break; | |
560 | case '0': | |
561 | break; | |
a863c7d1 MB |
562 | #ifdef USE_THREADS |
563 | case '@': | |
38a03e6e | 564 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
565 | break; |
566 | #endif /* USE_THREADS */ | |
79072805 | 567 | } |
a0d0e21e | 568 | return 0; |
79072805 LW |
569 | } |
570 | ||
571 | int | |
8ac85365 | 572 | magic_getuvar(SV *sv, MAGIC *mg) |
79072805 LW |
573 | { |
574 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
575 | ||
576 | if (uf && uf->uf_val) | |
577 | (*uf->uf_val)(uf->uf_index, sv); | |
578 | return 0; | |
579 | } | |
580 | ||
581 | int | |
8ac85365 | 582 | magic_setenv(SV *sv, MAGIC *mg) |
79072805 LW |
583 | { |
584 | register char *s; | |
88e89b8a | 585 | char *ptr; |
5aabfad6 | 586 | STRLEN len, klen; |
a0d0e21e | 587 | I32 i; |
1e422769 | 588 | |
a0d0e21e | 589 | s = SvPV(sv,len); |
5aabfad6 | 590 | ptr = MgPV(mg,klen); |
88e89b8a | 591 | my_setenv(ptr, s); |
1e422769 | 592 | |
a0d0e21e LW |
593 | #ifdef DYNAMIC_ENV_FETCH |
594 | /* We just undefd an environment var. Is a replacement */ | |
595 | /* waiting in the wings? */ | |
596 | if (!len) { | |
5aabfad6 | 597 | SV **valp; |
598 | if ((valp = hv_fetch(GvHVn(envgv), ptr, klen, FALSE))) | |
599 | s = SvPV(*valp, len); | |
a0d0e21e LW |
600 | } |
601 | #endif | |
1e422769 | 602 | |
39e571d4 | 603 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
604 | /* And you'll never guess what the dog had */ |
605 | /* in its mouth... */ | |
463ee0b2 | 606 | if (tainting) { |
1e422769 | 607 | MgTAINTEDDIR_off(mg); |
608 | #ifdef VMS | |
5aabfad6 | 609 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 610 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
611 | struct stat sbuf; | |
612 | int i = 0, j = 0; | |
613 | ||
614 | do { /* DCL$PATH may be a search list */ | |
615 | while (1) { /* as may dev portion of any element */ | |
616 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
617 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
618 | cando_by_name(S_IWUSR,0,elt) ) { | |
619 | MgTAINTEDDIR_on(mg); | |
620 | return 0; | |
621 | } | |
622 | } | |
623 | if ((cp = strchr(elt, ':')) != Nullch) | |
624 | *cp = '\0'; | |
625 | if (my_trnlnm(elt, eltbuf, j++)) | |
626 | elt = eltbuf; | |
627 | else | |
628 | break; | |
629 | } | |
630 | j = 0; | |
631 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
632 | } | |
633 | #endif /* VMS */ | |
5aabfad6 | 634 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 635 | char *strend = s + len; |
463ee0b2 LW |
636 | |
637 | while (s < strend) { | |
96827780 | 638 | char tmpbuf[256]; |
1e422769 | 639 | struct stat st; |
96827780 | 640 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 641 | s, strend, ':', &i); |
463ee0b2 | 642 | s++; |
96827780 MB |
643 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
644 | || *tmpbuf != '/' | |
645 | || (Stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { | |
8990e307 | 646 | MgTAINTEDDIR_on(mg); |
1e422769 | 647 | return 0; |
648 | } | |
463ee0b2 | 649 | } |
79072805 LW |
650 | } |
651 | } | |
39e571d4 | 652 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 653 | |
79072805 LW |
654 | return 0; |
655 | } | |
656 | ||
657 | int | |
8ac85365 | 658 | magic_clearenv(SV *sv, MAGIC *mg) |
85e6fe83 | 659 | { |
5aabfad6 | 660 | my_setenv(MgPV(mg,na),Nullch); |
85e6fe83 LW |
661 | return 0; |
662 | } | |
663 | ||
88e89b8a | 664 | int |
8ac85365 | 665 | magic_set_all_env(SV *sv, MAGIC *mg) |
fb73857a | 666 | { |
667 | #if defined(VMS) | |
668 | die("Can't make list assignment to %%ENV on this system"); | |
669 | #else | |
d58bf5aa | 670 | dTHR; |
fb73857a | 671 | if (localizing) { |
672 | HE* entry; | |
673 | magic_clear_all_env(sv,mg); | |
674 | hv_iterinit((HV*)sv); | |
675 | while (entry = hv_iternext((HV*)sv)) { | |
676 | I32 keylen; | |
677 | my_setenv(hv_iterkey(entry, &keylen), | |
678 | SvPV(hv_iterval((HV*)sv, entry), na)); | |
679 | } | |
680 | } | |
681 | #endif | |
682 | return 0; | |
683 | } | |
684 | ||
685 | int | |
8ac85365 | 686 | magic_clear_all_env(SV *sv, MAGIC *mg) |
66b1d557 | 687 | { |
3e3baf6d TB |
688 | #if defined(VMS) |
689 | die("Can't make list assignment to %%ENV on this system"); | |
690 | #else | |
691 | #ifdef WIN32 | |
692 | char *envv = GetEnvironmentStrings(); | |
693 | char *cur = envv; | |
694 | STRLEN len; | |
695 | while (*cur) { | |
696 | char *end = strchr(cur,'='); | |
697 | if (end && end != cur) { | |
698 | *end = '\0'; | |
699 | my_setenv(cur,Nullch); | |
700 | *end = '='; | |
701 | cur += strlen(end+1)+1; | |
702 | } | |
703 | else if ((len = strlen(cur))) | |
704 | cur += len+1; | |
705 | } | |
706 | FreeEnvironmentStrings(envv); | |
66b1d557 HM |
707 | #else |
708 | I32 i; | |
709 | ||
710 | if (environ == origenviron) | |
711 | New(901, environ, 1, char*); | |
712 | else | |
713 | for (i = 0; environ[i]; i++) | |
714 | Safefree(environ[i]); | |
715 | environ[0] = Nullch; | |
716 | ||
66b1d557 | 717 | #endif |
3e3baf6d TB |
718 | #endif |
719 | return 0; | |
66b1d557 HM |
720 | } |
721 | ||
722 | int | |
8ac85365 | 723 | magic_getsig(SV *sv, MAGIC *mg) |
88e89b8a | 724 | { |
725 | I32 i; | |
726 | /* Are we fetching a signal entry? */ | |
5aabfad6 | 727 | i = whichsig(MgPV(mg,na)); |
88e89b8a | 728 | if (i) { |
729 | if(psig_ptr[i]) | |
730 | sv_setsv(sv,psig_ptr[i]); | |
731 | else { | |
ff68c719 | 732 | Sighandler_t sigstate = rsignal_state(i); |
733 | ||
88e89b8a | 734 | /* cache state so we don't fetch it again */ |
ff68c719 | 735 | if(sigstate == SIG_IGN) |
88e89b8a | 736 | sv_setpv(sv,"IGNORE"); |
737 | else | |
738 | sv_setsv(sv,&sv_undef); | |
739 | psig_ptr[i] = SvREFCNT_inc(sv); | |
740 | SvTEMP_off(sv); | |
741 | } | |
742 | } | |
743 | return 0; | |
744 | } | |
745 | int | |
8ac85365 | 746 | magic_clearsig(SV *sv, MAGIC *mg) |
88e89b8a | 747 | { |
748 | I32 i; | |
749 | /* Are we clearing a signal entry? */ | |
5aabfad6 | 750 | i = whichsig(MgPV(mg,na)); |
88e89b8a | 751 | if (i) { |
752 | if(psig_ptr[i]) { | |
753 | SvREFCNT_dec(psig_ptr[i]); | |
754 | psig_ptr[i]=0; | |
755 | } | |
756 | if(psig_name[i]) { | |
757 | SvREFCNT_dec(psig_name[i]); | |
758 | psig_name[i]=0; | |
759 | } | |
760 | } | |
761 | return 0; | |
762 | } | |
3d37d572 | 763 | |
85e6fe83 | 764 | int |
8ac85365 | 765 | magic_setsig(SV *sv, MAGIC *mg) |
79072805 | 766 | { |
11343788 | 767 | dTHR; |
79072805 LW |
768 | register char *s; |
769 | I32 i; | |
748a9306 | 770 | SV** svp; |
a0d0e21e | 771 | |
5aabfad6 | 772 | s = MgPV(mg,na); |
748a9306 LW |
773 | if (*s == '_') { |
774 | if (strEQ(s,"__DIE__")) | |
775 | svp = &diehook; | |
776 | else if (strEQ(s,"__WARN__")) | |
777 | svp = &warnhook; | |
778 | else if (strEQ(s,"__PARSE__")) | |
779 | svp = &parsehook; | |
780 | else | |
781 | croak("No such hook: %s", s); | |
782 | i = 0; | |
4633a7c4 LW |
783 | if (*svp) { |
784 | SvREFCNT_dec(*svp); | |
785 | *svp = 0; | |
786 | } | |
748a9306 LW |
787 | } |
788 | else { | |
789 | i = whichsig(s); /* ...no, a brick */ | |
790 | if (!i) { | |
791 | if (dowarn || strEQ(s,"ALARM")) | |
792 | warn("No such signal: SIG%s", s); | |
793 | return 0; | |
794 | } | |
ff0cee69 | 795 | SvREFCNT_dec(psig_name[i]); |
796 | SvREFCNT_dec(psig_ptr[i]); | |
88e89b8a | 797 | psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 798 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
ff0cee69 | 799 | psig_name[i] = newSVpv(s, strlen(s)); |
88e89b8a | 800 | SvREADONLY_on(psig_name[i]); |
748a9306 | 801 | } |
a0d0e21e | 802 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 803 | if (i) |
c23142e2 | 804 | (void)rsignal(i, sighandlerp); |
748a9306 LW |
805 | else |
806 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
807 | return 0; |
808 | } | |
809 | s = SvPV_force(sv,na); | |
748a9306 LW |
810 | if (strEQ(s,"IGNORE")) { |
811 | if (i) | |
ff68c719 | 812 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
813 | else |
814 | *svp = 0; | |
815 | } | |
816 | else if (strEQ(s,"DEFAULT") || !*s) { | |
817 | if (i) | |
ff68c719 | 818 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
819 | else |
820 | *svp = 0; | |
821 | } | |
79072805 | 822 | else { |
5aabfad6 | 823 | /* |
824 | * We should warn if HINT_STRICT_REFS, but without | |
825 | * access to a known hint bit in a known OP, we can't | |
826 | * tell whether HINT_STRICT_REFS is in force or not. | |
827 | */ | |
46fc3d4c | 828 | if (!strchr(s,':') && !strchr(s,'\'')) |
829 | sv_setpv(sv, form("main::%s", s)); | |
748a9306 | 830 | if (i) |
c23142e2 | 831 | (void)rsignal(i, sighandlerp); |
748a9306 LW |
832 | else |
833 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
834 | } |
835 | return 0; | |
836 | } | |
837 | ||
838 | int | |
8ac85365 | 839 | magic_setisa(SV *sv, MAGIC *mg) |
79072805 | 840 | { |
a0231f0e MB |
841 | HV *stash; |
842 | SV **svp; | |
843 | I32 fill; | |
844 | HV *basefields = Nullhv; | |
845 | GV **gvp; | |
846 | GV *gv; | |
847 | HE *he; | |
848 | static char *FIELDS = "FIELDS"; | |
849 | ||
463ee0b2 | 850 | sub_generation++; |
a0231f0e MB |
851 | |
852 | if (mg->mg_type == 'i') | |
853 | return 0; /* Ignore lower-case version of the magic */ | |
854 | ||
855 | stash = GvSTASH(mg->mg_obj); | |
856 | svp = AvARRAY((AV*)sv); | |
857 | ||
858 | for (fill = AvFILL((AV*)sv); fill >= 0; fill--, svp++) { | |
859 | HV *basestash = gv_stashsv(*svp, FALSE); | |
860 | ||
861 | if (!basestash) { | |
862 | if (dowarn) | |
863 | warn("No such package \"%_\" in @ISA assignment", *svp); | |
864 | continue; | |
865 | } | |
866 | gvp = (GV**)hv_fetch(basestash, FIELDS, 6, FALSE); | |
867 | if (gvp && *gvp && GvHV(*gvp)) { | |
868 | if (basefields) | |
869 | croak("Can't multiply inherit %%FIELDS"); | |
870 | basefields = GvHV(*gvp); | |
871 | } | |
872 | } | |
873 | ||
874 | if (!basefields) | |
875 | return 0; | |
876 | ||
877 | gv = (GV*)*hv_fetch(stash, FIELDS, 6, TRUE); | |
878 | if (!isGV(gv)) | |
879 | gv_init(gv, stash, FIELDS, 6, TRUE); | |
880 | if (!GvHV(gv)) | |
881 | GvHV(gv) = newHV(); | |
882 | if (HvKEYS(GvHV(gv))) | |
883 | croak("Inherited %%FIELDS can't override existing %%FIELDS"); | |
884 | ||
885 | hv_iterinit(GvHV(gv)); | |
886 | while ((he = hv_iternext(basefields))) | |
887 | hv_store(GvHV(gv), HeKEY(he), HeKLEN(he), HeVAL(he), HeHASH(he)); | |
888 | ||
463ee0b2 LW |
889 | return 0; |
890 | } | |
891 | ||
a0d0e21e LW |
892 | #ifdef OVERLOAD |
893 | ||
463ee0b2 | 894 | int |
8ac85365 | 895 | magic_setamagic(SV *sv, MAGIC *mg) |
463ee0b2 | 896 | { |
a0d0e21e LW |
897 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
898 | amagic_generation++; | |
463ee0b2 | 899 | |
a0d0e21e LW |
900 | return 0; |
901 | } | |
902 | #endif /* OVERLOAD */ | |
463ee0b2 | 903 | |
946ec16e | 904 | int |
8ac85365 | 905 | magic_setnkeys(SV *sv, MAGIC *mg) |
946ec16e | 906 | { |
907 | if (LvTARG(sv)) { | |
908 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
909 | LvTARG(sv) = Nullsv; /* Don't allow a ref to reassign this. */ | |
910 | } | |
911 | return 0; | |
912 | } | |
913 | ||
a0d0e21e | 914 | static int |
8ac85365 | 915 | magic_methpack(SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
916 | { |
917 | dSP; | |
463ee0b2 | 918 | |
a0d0e21e LW |
919 | ENTER; |
920 | SAVETMPS; | |
921 | PUSHMARK(sp); | |
922 | EXTEND(sp, 2); | |
923 | PUSHs(mg->mg_obj); | |
88e89b8a | 924 | if (mg->mg_ptr) { |
925 | if (mg->mg_len >= 0) | |
926 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
927 | else if (mg->mg_len == HEf_SVKEY) | |
928 | PUSHs((SV*)mg->mg_ptr); | |
929 | } | |
a0d0e21e LW |
930 | else if (mg->mg_type == 'p') |
931 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
932 | PUTBACK; |
933 | ||
a0d0e21e LW |
934 | if (perl_call_method(meth, G_SCALAR)) |
935 | sv_setsv(sv, *stack_sp--); | |
463ee0b2 | 936 | |
a0d0e21e LW |
937 | FREETMPS; |
938 | LEAVE; | |
939 | return 0; | |
940 | } | |
463ee0b2 | 941 | |
a0d0e21e | 942 | int |
8ac85365 | 943 | magic_getpack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
944 | { |
945 | magic_methpack(sv,mg,"FETCH"); | |
946 | if (mg->mg_ptr) | |
947 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
948 | return 0; |
949 | } | |
950 | ||
951 | int | |
8ac85365 | 952 | magic_setpack(SV *sv, MAGIC *mg) |
463ee0b2 | 953 | { |
463ee0b2 | 954 | dSP; |
463ee0b2 | 955 | |
a0d0e21e LW |
956 | PUSHMARK(sp); |
957 | EXTEND(sp, 3); | |
958 | PUSHs(mg->mg_obj); | |
88e89b8a | 959 | if (mg->mg_ptr) { |
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) | |
963 | PUSHs((SV*)mg->mg_ptr); | |
964 | } | |
a0d0e21e LW |
965 | else if (mg->mg_type == 'p') |
966 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
967 | PUSHs(sv); |
968 | PUTBACK; | |
969 | ||
a0d0e21e | 970 | perl_call_method("STORE", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
971 | |
972 | return 0; | |
973 | } | |
974 | ||
975 | int | |
8ac85365 | 976 | magic_clearpack(SV *sv, MAGIC *mg) |
463ee0b2 | 977 | { |
a0d0e21e LW |
978 | return magic_methpack(sv,mg,"DELETE"); |
979 | } | |
463ee0b2 | 980 | |
8ac85365 | 981 | int magic_wipepack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
982 | { |
983 | dSP; | |
463ee0b2 | 984 | |
a0d0e21e LW |
985 | PUSHMARK(sp); |
986 | XPUSHs(mg->mg_obj); | |
463ee0b2 | 987 | PUTBACK; |
463ee0b2 | 988 | |
a0d0e21e | 989 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
990 | |
991 | return 0; | |
992 | } | |
993 | ||
994 | int | |
8ac85365 | 995 | magic_nextpack(SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 996 | { |
463ee0b2 | 997 | dSP; |
a0d0e21e | 998 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
999 | |
1000 | ENTER; | |
a0d0e21e LW |
1001 | SAVETMPS; |
1002 | PUSHMARK(sp); | |
1003 | EXTEND(sp, 2); | |
1004 | PUSHs(mg->mg_obj); | |
463ee0b2 LW |
1005 | if (SvOK(key)) |
1006 | PUSHs(key); | |
1007 | PUTBACK; | |
1008 | ||
a0d0e21e LW |
1009 | if (perl_call_method(meth, G_SCALAR)) |
1010 | sv_setsv(key, *stack_sp--); | |
463ee0b2 | 1011 | |
a0d0e21e LW |
1012 | FREETMPS; |
1013 | LEAVE; | |
79072805 LW |
1014 | return 0; |
1015 | } | |
1016 | ||
1017 | int | |
8ac85365 | 1018 | magic_existspack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1019 | { |
1020 | return magic_methpack(sv,mg,"EXISTS"); | |
1021 | } | |
1022 | ||
1023 | int | |
8ac85365 | 1024 | magic_setdbline(SV *sv, MAGIC *mg) |
79072805 | 1025 | { |
11343788 | 1026 | dTHR; |
79072805 LW |
1027 | OP *o; |
1028 | I32 i; | |
1029 | GV* gv; | |
1030 | SV** svp; | |
1031 | ||
1032 | gv = DBline; | |
1033 | i = SvTRUE(sv); | |
188ea221 | 1034 | svp = av_fetch(GvAV(gv), |
5aabfad6 | 1035 | atoi(MgPV(mg,na)), FALSE); |
8990e307 | 1036 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 1037 | o->op_private = i; |
79072805 LW |
1038 | else |
1039 | warn("Can't break at that line\n"); | |
1040 | return 0; | |
1041 | } | |
1042 | ||
1043 | int | |
8ac85365 | 1044 | magic_getarylen(SV *sv, MAGIC *mg) |
79072805 | 1045 | { |
0f15f207 | 1046 | dTHR; |
a0d0e21e | 1047 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 LW |
1048 | return 0; |
1049 | } | |
1050 | ||
1051 | int | |
8ac85365 | 1052 | magic_setarylen(SV *sv, MAGIC *mg) |
79072805 | 1053 | { |
0f15f207 | 1054 | dTHR; |
a0d0e21e LW |
1055 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
1056 | return 0; | |
1057 | } | |
1058 | ||
1059 | int | |
8ac85365 | 1060 | magic_getpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1061 | { |
1062 | SV* lsv = LvTARG(sv); | |
1063 | ||
1064 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1065 | mg = mg_find(lsv, 'g'); | |
1066 | if (mg && mg->mg_len >= 0) { | |
0f15f207 | 1067 | dTHR; |
a0d0e21e LW |
1068 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); |
1069 | return 0; | |
1070 | } | |
1071 | } | |
1072 | (void)SvOK_off(sv); | |
1073 | return 0; | |
1074 | } | |
1075 | ||
1076 | int | |
8ac85365 | 1077 | magic_setpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1078 | { |
1079 | SV* lsv = LvTARG(sv); | |
1080 | SSize_t pos; | |
1081 | STRLEN len; | |
1082 | ||
1083 | mg = 0; | |
1084 | ||
1085 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1086 | mg = mg_find(lsv, 'g'); | |
1087 | if (!mg) { | |
1088 | if (!SvOK(sv)) | |
1089 | return 0; | |
1090 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1091 | mg = mg_find(lsv, 'g'); | |
1092 | } | |
1093 | else if (!SvOK(sv)) { | |
1094 | mg->mg_len = -1; | |
1095 | return 0; | |
1096 | } | |
1097 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1098 | ||
0f15f207 | 1099 | WITH_THR(pos = SvIV(sv) - curcop->cop_arybase); |
a0d0e21e LW |
1100 | if (pos < 0) { |
1101 | pos += len; | |
1102 | if (pos < 0) | |
1103 | pos = 0; | |
1104 | } | |
1105 | else if (pos > len) | |
1106 | pos = len; | |
1107 | mg->mg_len = pos; | |
71be2cbc | 1108 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1109 | |
79072805 LW |
1110 | return 0; |
1111 | } | |
1112 | ||
1113 | int | |
8ac85365 | 1114 | magic_getglob(SV *sv, MAGIC *mg) |
79072805 | 1115 | { |
8646b087 | 1116 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1117 | SvFAKE_off(sv); | |
946ec16e | 1118 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1119 | SvFAKE_on(sv); |
1120 | } | |
1121 | else | |
946ec16e | 1122 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1123 | return 0; |
1124 | } | |
1125 | ||
1126 | int | |
8ac85365 | 1127 | magic_setglob(SV *sv, MAGIC *mg) |
79072805 LW |
1128 | { |
1129 | register char *s; | |
1130 | GV* gv; | |
1131 | ||
1132 | if (!SvOK(sv)) | |
1133 | return 0; | |
463ee0b2 | 1134 | s = SvPV(sv, na); |
79072805 LW |
1135 | if (*s == '*' && s[1]) |
1136 | s++; | |
85e6fe83 | 1137 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1138 | if (sv == (SV*)gv) |
1139 | return 0; | |
1140 | if (GvGP(sv)) | |
88e89b8a | 1141 | gp_free((GV*)sv); |
79072805 | 1142 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1143 | return 0; |
1144 | } | |
1145 | ||
1146 | int | |
8ac85365 | 1147 | magic_setsubstr(SV *sv, MAGIC *mg) |
79072805 | 1148 | { |
8990e307 LW |
1149 | STRLEN len; |
1150 | char *tmps = SvPV(sv,len); | |
1151 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1152 | return 0; |
1153 | } | |
1154 | ||
1155 | int | |
8ac85365 | 1156 | magic_gettaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1157 | { |
a863c7d1 | 1158 | dTHR; |
bbce6d69 | 1159 | TAINT_IF((mg->mg_len & 1) || |
1160 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1161 | return 0; |
1162 | } | |
1163 | ||
1164 | int | |
8ac85365 | 1165 | magic_settaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1166 | { |
11343788 | 1167 | dTHR; |
748a9306 LW |
1168 | if (localizing) { |
1169 | if (localizing == 1) | |
1170 | mg->mg_len <<= 1; | |
1171 | else | |
1172 | mg->mg_len >>= 1; | |
a0d0e21e | 1173 | } |
748a9306 LW |
1174 | else if (tainted) |
1175 | mg->mg_len |= 1; | |
1176 | else | |
1177 | mg->mg_len &= ~1; | |
463ee0b2 LW |
1178 | return 0; |
1179 | } | |
1180 | ||
1181 | int | |
8ac85365 | 1182 | magic_setvec(SV *sv, MAGIC *mg) |
79072805 LW |
1183 | { |
1184 | do_vecset(sv); /* XXX slurp this routine */ | |
1185 | return 0; | |
1186 | } | |
1187 | ||
1188 | int | |
8ac85365 | 1189 | magic_getdefelem(SV *sv, MAGIC *mg) |
5f05dabc | 1190 | { |
71be2cbc | 1191 | SV *targ = Nullsv; |
5f05dabc | 1192 | if (LvTARGLEN(sv)) { |
68dc0745 | 1193 | if (mg->mg_obj) { |
1194 | HV* hv = (HV*)LvTARG(sv); | |
1195 | HE* he = hv_fetch_ent(hv, mg->mg_obj, FALSE, 0); | |
1196 | if (he) | |
1197 | targ = HeVAL(he); | |
1198 | } | |
1199 | else { | |
1200 | AV* av = (AV*)LvTARG(sv); | |
1201 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) | |
1202 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1203 | } | |
1204 | if (targ && targ != &sv_undef) { | |
e858de61 | 1205 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 | 1206 | /* somebody else defined it for us */ |
1207 | SvREFCNT_dec(LvTARG(sv)); | |
1208 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1209 | LvTARGLEN(sv) = 0; | |
1210 | SvREFCNT_dec(mg->mg_obj); | |
1211 | mg->mg_obj = Nullsv; | |
1212 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1213 | } | |
5f05dabc | 1214 | } |
71be2cbc | 1215 | else |
1216 | targ = LvTARG(sv); | |
1217 | sv_setsv(sv, targ ? targ : &sv_undef); | |
1218 | return 0; | |
1219 | } | |
1220 | ||
1221 | int | |
8ac85365 | 1222 | magic_setdefelem(SV *sv, MAGIC *mg) |
71be2cbc | 1223 | { |
1224 | if (LvTARGLEN(sv)) | |
68dc0745 | 1225 | vivify_defelem(sv); |
1226 | if (LvTARG(sv)) { | |
5f05dabc | 1227 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1228 | SvSETMAGIC(LvTARG(sv)); |
1229 | } | |
5f05dabc | 1230 | return 0; |
1231 | } | |
1232 | ||
1233 | int | |
8ac85365 | 1234 | magic_freedefelem(SV *sv, MAGIC *mg) |
5f05dabc | 1235 | { |
1236 | SvREFCNT_dec(LvTARG(sv)); | |
71be2cbc | 1237 | return 0; |
1238 | } | |
1239 | ||
1240 | void | |
8ac85365 | 1241 | vivify_defelem(SV *sv) |
71be2cbc | 1242 | { |
e858de61 | 1243 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
68dc0745 | 1244 | MAGIC* mg; |
1245 | SV* value; | |
71be2cbc | 1246 | |
68dc0745 | 1247 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1248 | return; |
68dc0745 | 1249 | if (mg->mg_obj) { |
1250 | HV* hv = (HV*)LvTARG(sv); | |
1251 | HE* he = hv_fetch_ent(hv, mg->mg_obj, TRUE, 0); | |
1252 | if (!he || (value = HeVAL(he)) == &sv_undef) | |
1253 | croak(no_helem, SvPV(mg->mg_obj, na)); | |
71be2cbc | 1254 | } |
68dc0745 | 1255 | else { |
1256 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1257 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1258 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1259 | else { | |
1260 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
1261 | if (!svp || (value = *svp) == &sv_undef) | |
1262 | croak(no_aelem, (I32)LvTARGOFF(sv)); | |
1263 | } | |
1264 | } | |
3e3baf6d | 1265 | (void)SvREFCNT_inc(value); |
68dc0745 | 1266 | SvREFCNT_dec(LvTARG(sv)); |
1267 | LvTARG(sv) = value; | |
71be2cbc | 1268 | LvTARGLEN(sv) = 0; |
68dc0745 | 1269 | SvREFCNT_dec(mg->mg_obj); |
1270 | mg->mg_obj = Nullsv; | |
1271 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1272 | } |
1273 | ||
1274 | int | |
8ac85365 | 1275 | magic_setmglob(SV *sv, MAGIC *mg) |
93a17b20 | 1276 | { |
a0d0e21e | 1277 | mg->mg_len = -1; |
c6496cc7 | 1278 | SvSCREAM_off(sv); |
93a17b20 LW |
1279 | return 0; |
1280 | } | |
1281 | ||
1282 | int | |
8ac85365 | 1283 | magic_setbm(SV *sv, MAGIC *mg) |
79072805 | 1284 | { |
463ee0b2 | 1285 | sv_unmagic(sv, 'B'); |
79072805 LW |
1286 | SvVALID_off(sv); |
1287 | return 0; | |
1288 | } | |
1289 | ||
1290 | int | |
8ac85365 | 1291 | magic_setfm(SV *sv, MAGIC *mg) |
55497cff | 1292 | { |
1293 | sv_unmagic(sv, 'f'); | |
1294 | SvCOMPILED_off(sv); | |
1295 | return 0; | |
1296 | } | |
1297 | ||
1298 | int | |
8ac85365 | 1299 | magic_setuvar(SV *sv, MAGIC *mg) |
79072805 LW |
1300 | { |
1301 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1302 | ||
1303 | if (uf && uf->uf_set) | |
1304 | (*uf->uf_set)(uf->uf_index, sv); | |
1305 | return 0; | |
1306 | } | |
1307 | ||
c277df42 IZ |
1308 | int |
1309 | magic_freeregexp(SV *sv, MAGIC *mg) | |
1310 | { | |
1311 | regexp *re = (regexp *)mg->mg_obj; | |
1312 | ReREFCNT_dec(re); | |
1313 | return 0; | |
1314 | } | |
1315 | ||
7a4c00b4 | 1316 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1317 | int |
8ac85365 | 1318 | magic_setcollxfrm(SV *sv, MAGIC *mg) |
bbce6d69 | 1319 | { |
1320 | /* | |
1321 | * René Descartes said "I think not." | |
1322 | * and vanished with a faint plop. | |
1323 | */ | |
7a4c00b4 | 1324 | if (mg->mg_ptr) { |
1325 | Safefree(mg->mg_ptr); | |
1326 | mg->mg_ptr = NULL; | |
1327 | mg->mg_len = -1; | |
1328 | } | |
bbce6d69 | 1329 | return 0; |
1330 | } | |
7a4c00b4 | 1331 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1332 | |
1333 | int | |
8ac85365 | 1334 | magic_set(SV *sv, MAGIC *mg) |
79072805 | 1335 | { |
11343788 | 1336 | dTHR; |
79072805 LW |
1337 | register char *s; |
1338 | I32 i; | |
8990e307 | 1339 | STRLEN len; |
79072805 | 1340 | switch (*mg->mg_ptr) { |
748a9306 LW |
1341 | case '\001': /* ^A */ |
1342 | sv_setsv(bodytarget, sv); | |
1343 | break; | |
79072805 | 1344 | case '\004': /* ^D */ |
8990e307 | 1345 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1346 | DEBUG_x(dump_all()); |
1347 | break; | |
28f23441 | 1348 | case '\005': /* ^E */ |
1349 | #ifdef VMS | |
1350 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1351 | #else | |
f86702cc | 1352 | /* will anyone ever use this? */ |
1353 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
28f23441 | 1354 | #endif |
1355 | break; | |
79072805 | 1356 | case '\006': /* ^F */ |
463ee0b2 | 1357 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1358 | break; |
a0d0e21e LW |
1359 | case '\010': /* ^H */ |
1360 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1361 | break; | |
79072805 LW |
1362 | case '\t': /* ^I */ |
1363 | if (inplace) | |
1364 | Safefree(inplace); | |
1365 | if (SvOK(sv)) | |
a0d0e21e | 1366 | inplace = savepv(SvPV(sv,na)); |
79072805 LW |
1367 | else |
1368 | inplace = Nullch; | |
1369 | break; | |
28f23441 | 1370 | case '\017': /* ^O */ |
1371 | if (osname) | |
1372 | Safefree(osname); | |
1373 | if (SvOK(sv)) | |
1374 | osname = savepv(SvPV(sv,na)); | |
1375 | else | |
1376 | osname = Nullch; | |
1377 | break; | |
79072805 | 1378 | case '\020': /* ^P */ |
84902520 | 1379 | perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1380 | break; |
1381 | case '\024': /* ^T */ | |
88e89b8a | 1382 | #ifdef BIG_TIME |
1383 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); | |
1384 | #else | |
85e6fe83 | 1385 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1386 | #endif |
79072805 LW |
1387 | break; |
1388 | case '\027': /* ^W */ | |
463ee0b2 | 1389 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1390 | break; |
1391 | case '.': | |
748a9306 LW |
1392 | if (localizing) { |
1393 | if (localizing == 1) | |
1394 | save_sptr((SV**)&last_in_gv); | |
1395 | } | |
88e89b8a | 1396 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e | 1397 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 LW |
1398 | break; |
1399 | case '^': | |
a0d0e21e LW |
1400 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1401 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1402 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1403 | break; |
1404 | case '~': | |
a0d0e21e LW |
1405 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1406 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1407 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1408 | break; |
1409 | case '=': | |
a0d0e21e | 1410 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1411 | break; |
1412 | case '-': | |
a0d0e21e LW |
1413 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1414 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) | |
1415 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; | |
79072805 LW |
1416 | break; |
1417 | case '%': | |
a0d0e21e | 1418 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1419 | break; |
1420 | case '|': | |
4b65379b CS |
1421 | { |
1422 | IO *io = GvIOp(defoutgv); | |
1423 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) | |
1424 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1425 | else { | |
1426 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1427 | PerlIO *ofp = IoOFP(io); | |
1428 | if (ofp) | |
1429 | (void)PerlIO_flush(ofp); | |
1430 | IoFLAGS(io) |= IOf_FLUSH; | |
1431 | } | |
1432 | } | |
79072805 LW |
1433 | } |
1434 | break; | |
1435 | case '*': | |
463ee0b2 | 1436 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1437 | multiline = (i != 0); |
1438 | break; | |
1439 | case '/': | |
c07a80fd | 1440 | SvREFCNT_dec(nrs); |
1441 | nrs = newSVsv(sv); | |
1442 | SvREFCNT_dec(rs); | |
1443 | rs = SvREFCNT_inc(nrs); | |
79072805 LW |
1444 | break; |
1445 | case '\\': | |
1446 | if (ors) | |
1447 | Safefree(ors); | |
e3c19b7b CS |
1448 | if (SvOK(sv) || SvGMAGICAL(sv)) |
1449 | ors = savepv(SvPV(sv,orslen)); | |
1450 | else { | |
1451 | ors = Nullch; | |
1452 | orslen = 0; | |
1453 | } | |
79072805 LW |
1454 | break; |
1455 | case ',': | |
1456 | if (ofs) | |
1457 | Safefree(ofs); | |
a0d0e21e | 1458 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 LW |
1459 | break; |
1460 | case '#': | |
1461 | if (ofmt) | |
1462 | Safefree(ofmt); | |
a0d0e21e | 1463 | ofmt = savepv(SvPV(sv,na)); |
79072805 LW |
1464 | break; |
1465 | case '[': | |
a0d0e21e | 1466 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1467 | break; |
1468 | case '?': | |
ff0cee69 | 1469 | #ifdef COMPLEX_STATUS |
1470 | if (localizing == 2) { | |
1471 | statusvalue = LvTARGOFF(sv); | |
1472 | statusvalue_vms = LvTARGLEN(sv); | |
1473 | } | |
1474 | else | |
1475 | #endif | |
1476 | #ifdef VMSISH_STATUS | |
1477 | if (VMSISH_STATUS) | |
1478 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1479 | else | |
1480 | #endif | |
1481 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1482 | break; |
1483 | case '!': | |
f86702cc | 1484 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), |
1485 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); | |
79072805 LW |
1486 | break; |
1487 | case '<': | |
463ee0b2 | 1488 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1489 | if (delaymagic) { |
1490 | delaymagic |= DM_RUID; | |
1491 | break; /* don't do magic till later */ | |
1492 | } | |
1493 | #ifdef HAS_SETRUID | |
85e6fe83 | 1494 | (void)setruid((Uid_t)uid); |
79072805 LW |
1495 | #else |
1496 | #ifdef HAS_SETREUID | |
85e6fe83 | 1497 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 | 1498 | #else |
85e6fe83 LW |
1499 | #ifdef HAS_SETRESUID |
1500 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); | |
79072805 LW |
1501 | #else |
1502 | if (uid == euid) /* special case $< = $> */ | |
1503 | (void)setuid(uid); | |
a0d0e21e LW |
1504 | else { |
1505 | uid = (I32)getuid(); | |
463ee0b2 | 1506 | croak("setruid() not implemented"); |
a0d0e21e | 1507 | } |
79072805 LW |
1508 | #endif |
1509 | #endif | |
85e6fe83 | 1510 | #endif |
748a9306 | 1511 | uid = (I32)getuid(); |
4633a7c4 | 1512 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1513 | break; |
1514 | case '>': | |
463ee0b2 | 1515 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1516 | if (delaymagic) { |
1517 | delaymagic |= DM_EUID; | |
1518 | break; /* don't do magic till later */ | |
1519 | } | |
1520 | #ifdef HAS_SETEUID | |
85e6fe83 | 1521 | (void)seteuid((Uid_t)euid); |
79072805 LW |
1522 | #else |
1523 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1524 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1525 | #else | |
1526 | #ifdef HAS_SETRESUID | |
1527 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); | |
79072805 LW |
1528 | #else |
1529 | if (euid == uid) /* special case $> = $< */ | |
1530 | setuid(euid); | |
a0d0e21e LW |
1531 | else { |
1532 | euid = (I32)geteuid(); | |
463ee0b2 | 1533 | croak("seteuid() not implemented"); |
a0d0e21e | 1534 | } |
79072805 LW |
1535 | #endif |
1536 | #endif | |
85e6fe83 | 1537 | #endif |
79072805 | 1538 | euid = (I32)geteuid(); |
4633a7c4 | 1539 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1540 | break; |
1541 | case '(': | |
463ee0b2 | 1542 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1543 | if (delaymagic) { |
1544 | delaymagic |= DM_RGID; | |
1545 | break; /* don't do magic till later */ | |
1546 | } | |
1547 | #ifdef HAS_SETRGID | |
85e6fe83 | 1548 | (void)setrgid((Gid_t)gid); |
79072805 LW |
1549 | #else |
1550 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1551 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1552 | #else | |
1553 | #ifdef HAS_SETRESGID | |
1554 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); | |
79072805 LW |
1555 | #else |
1556 | if (gid == egid) /* special case $( = $) */ | |
1557 | (void)setgid(gid); | |
748a9306 LW |
1558 | else { |
1559 | gid = (I32)getgid(); | |
463ee0b2 | 1560 | croak("setrgid() not implemented"); |
748a9306 | 1561 | } |
79072805 LW |
1562 | #endif |
1563 | #endif | |
85e6fe83 | 1564 | #endif |
79072805 | 1565 | gid = (I32)getgid(); |
4633a7c4 | 1566 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1567 | break; |
1568 | case ')': | |
5cd24f17 | 1569 | #ifdef HAS_SETGROUPS |
1570 | { | |
1571 | char *p = SvPV(sv, na); | |
1572 | Groups_t gary[NGROUPS]; | |
1573 | ||
1574 | SET_NUMERIC_STANDARD(); | |
1575 | while (isSPACE(*p)) | |
1576 | ++p; | |
1577 | egid = I_V(atof(p)); | |
1578 | for (i = 0; i < NGROUPS; ++i) { | |
1579 | while (*p && !isSPACE(*p)) | |
1580 | ++p; | |
1581 | while (isSPACE(*p)) | |
1582 | ++p; | |
1583 | if (!*p) | |
1584 | break; | |
1585 | gary[i] = I_V(atof(p)); | |
1586 | } | |
8cc95fdb | 1587 | if (i) |
1588 | (void)setgroups(i, gary); | |
5cd24f17 | 1589 | } |
1590 | #else /* HAS_SETGROUPS */ | |
463ee0b2 | 1591 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1592 | #endif /* HAS_SETGROUPS */ |
79072805 LW |
1593 | if (delaymagic) { |
1594 | delaymagic |= DM_EGID; | |
1595 | break; /* don't do magic till later */ | |
1596 | } | |
1597 | #ifdef HAS_SETEGID | |
85e6fe83 | 1598 | (void)setegid((Gid_t)egid); |
79072805 LW |
1599 | #else |
1600 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1601 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1602 | #else | |
1603 | #ifdef HAS_SETRESGID | |
1604 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); | |
79072805 LW |
1605 | #else |
1606 | if (egid == gid) /* special case $) = $( */ | |
1607 | (void)setgid(egid); | |
748a9306 LW |
1608 | else { |
1609 | egid = (I32)getegid(); | |
463ee0b2 | 1610 | croak("setegid() not implemented"); |
748a9306 | 1611 | } |
79072805 LW |
1612 | #endif |
1613 | #endif | |
85e6fe83 | 1614 | #endif |
79072805 | 1615 | egid = (I32)getegid(); |
4633a7c4 | 1616 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1617 | break; |
1618 | case ':': | |
a0d0e21e | 1619 | chopset = SvPV_force(sv,na); |
79072805 LW |
1620 | break; |
1621 | case '0': | |
1622 | if (!origalen) { | |
1623 | s = origargv[0]; | |
1624 | s += strlen(s); | |
1625 | /* See if all the arguments are contiguous in memory */ | |
1626 | for (i = 1; i < origargc; i++) { | |
fb73857a | 1627 | if (origargv[i] == s + 1 |
1628 | #ifdef OS2 | |
1629 | || origargv[i] == s + 2 | |
1630 | #endif | |
1631 | ) | |
79072805 | 1632 | s += strlen(++s); /* this one is ok too */ |
fb73857a | 1633 | else |
1634 | break; | |
79072805 | 1635 | } |
bbce6d69 | 1636 | /* can grab env area too? */ |
fb73857a | 1637 | if (origenviron && (origenviron[0] == s + 1 |
1638 | #ifdef OS2 | |
1639 | || (origenviron[0] == s + 9 && (s += 8)) | |
1640 | #endif | |
1641 | )) { | |
66b1d557 | 1642 | my_setenv("NoNe SuCh", Nullch); |
79072805 LW |
1643 | /* force copy of environment */ |
1644 | for (i = 0; origenviron[i]; i++) | |
1645 | if (origenviron[i] == s + 1) | |
1646 | s += strlen(++s); | |
fb73857a | 1647 | else |
1648 | break; | |
79072805 LW |
1649 | } |
1650 | origalen = s - origargv[0]; | |
1651 | } | |
a0d0e21e | 1652 | s = SvPV_force(sv,len); |
8990e307 | 1653 | i = len; |
79072805 LW |
1654 | if (i >= origalen) { |
1655 | i = origalen; | |
fb73857a | 1656 | /* don't allow system to limit $0 seen by script */ |
1657 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
79072805 | 1658 | Copy(s, origargv[0], i, char); |
fb73857a | 1659 | s = origargv[0]+i; |
1660 | *s = '\0'; | |
79072805 LW |
1661 | } |
1662 | else { | |
1663 | Copy(s, origargv[0], i, char); | |
1664 | s = origargv[0]+i; | |
1665 | *s++ = '\0'; | |
1666 | while (++i < origalen) | |
8990e307 LW |
1667 | *s++ = ' '; |
1668 | s = origargv[0]+i; | |
ed6116ce | 1669 | for (i = 1; i < origargc; i++) |
8990e307 | 1670 | origargv[i] = Nullch; |
79072805 LW |
1671 | } |
1672 | break; | |
a863c7d1 MB |
1673 | #ifdef USE_THREADS |
1674 | case '@': | |
38a03e6e | 1675 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
1676 | break; |
1677 | #endif /* USE_THREADS */ | |
79072805 LW |
1678 | } |
1679 | return 0; | |
1680 | } | |
1681 | ||
f93b4edd MB |
1682 | #ifdef USE_THREADS |
1683 | int | |
8ac85365 | 1684 | magic_mutexfree(SV *sv, MAGIC *mg) |
f93b4edd MB |
1685 | { |
1686 | dTHR; | |
bc1f4c86 MB |
1687 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
1688 | (unsigned long)thr, (unsigned long)sv);) | |
f93b4edd MB |
1689 | if (MgOWNER(mg)) |
1690 | croak("panic: magic_mutexfree"); | |
1691 | MUTEX_DESTROY(MgMUTEXP(mg)); | |
1692 | COND_DESTROY(MgCONDP(mg)); | |
e55aaa0e | 1693 | SvREFCNT_dec(sv); |
f93b4edd MB |
1694 | return 0; |
1695 | } | |
1696 | #endif /* USE_THREADS */ | |
1697 | ||
79072805 | 1698 | I32 |
8ac85365 | 1699 | whichsig(char *sig) |
79072805 LW |
1700 | { |
1701 | register char **sigv; | |
1702 | ||
1703 | for (sigv = sig_name+1; *sigv; sigv++) | |
1704 | if (strEQ(sig,*sigv)) | |
8e07c86e | 1705 | return sig_num[sigv - sig_name]; |
79072805 LW |
1706 | #ifdef SIGCLD |
1707 | if (strEQ(sig,"CHLD")) | |
1708 | return SIGCLD; | |
1709 | #endif | |
1710 | #ifdef SIGCHLD | |
1711 | if (strEQ(sig,"CLD")) | |
1712 | return SIGCHLD; | |
1713 | #endif | |
1714 | return 0; | |
1715 | } | |
1716 | ||
84902520 TB |
1717 | static SV* sig_sv; |
1718 | ||
1719 | static void | |
8ac85365 | 1720 | unwind_handler_stack(void *p) |
84902520 | 1721 | { |
ff26ac79 | 1722 | dTHR; |
84902520 TB |
1723 | U32 flags = *(U32*)p; |
1724 | ||
1725 | if (flags & 1) | |
1726 | savestack_ix -= 5; /* Unprotect save in progress. */ | |
1727 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
1728 | if (flags & 64) | |
1729 | SvREFCNT_dec(sig_sv); | |
1730 | } | |
1731 | ||
ecfc5424 | 1732 | Signal_t |
8ac85365 | 1733 | sighandler(int sig) |
79072805 LW |
1734 | { |
1735 | dSP; | |
00d579c5 | 1736 | GV *gv = Nullgv; |
a0d0e21e | 1737 | HV *st; |
84902520 | 1738 | SV *sv, *tSv = Sv; |
00d579c5 | 1739 | CV *cv = Nullcv; |
79072805 | 1740 | AV *oldstack; |
84902520 TB |
1741 | OP *myop = op; |
1742 | U32 flags = 0; | |
1743 | I32 o_save_i = savestack_ix, type; | |
c09156bb | 1744 | PERL_CONTEXT *cx; |
84902520 TB |
1745 | XPV *tXpv = Xpv; |
1746 | ||
1747 | if (savestack_ix + 15 <= savestack_max) | |
1748 | flags |= 1; | |
1749 | if (cxstack_ix < cxstack_max - 2) | |
1750 | flags |= 2; | |
1751 | if (markstack_ptr < markstack_max - 2) | |
1752 | flags |= 4; | |
1753 | if (retstack_ix < retstack_max - 2) | |
1754 | flags |= 8; | |
1755 | if (scopestack_ix < scopestack_max - 3) | |
1756 | flags |= 16; | |
1757 | ||
1758 | if (flags & 2) { /* POPBLOCK may decrease cxstack too early. */ | |
1759 | cxstack_ix++; /* Protect from overwrite. */ | |
1760 | cx = &cxstack[cxstack_ix]; | |
1761 | type = cx->cx_type; /* Can be during partial write. */ | |
1762 | cx->cx_type = CXt_NULL; /* Make it safe for unwind. */ | |
1763 | } | |
ff0cee69 | 1764 | if (!psig_ptr[sig]) |
1765 | die("Signal SIG%s received, but no signal handler set.\n", | |
1766 | sig_name[sig]); | |
1767 | ||
84902520 TB |
1768 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
1769 | infinity, so we fix 4 (in fact 5): */ | |
1770 | if (flags & 1) { | |
1771 | savestack_ix += 5; /* Protect save in progress. */ | |
1772 | o_save_i = savestack_ix; | |
1773 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); | |
1774 | } | |
1775 | if (flags & 4) | |
1776 | markstack_ptr++; /* Protect mark. */ | |
1777 | if (flags & 8) { | |
1778 | retstack_ix++; | |
1779 | retstack[retstack_ix] = NULL; | |
1780 | } | |
1781 | if (flags & 16) | |
1782 | scopestack_ix += 1; | |
1783 | /* sv_2cv is too complicated, try a simpler variant first: */ | |
1784 | if (!SvROK(psig_ptr[sig]) || !(cv = (CV*)SvRV(psig_ptr[sig])) | |
1785 | || SvTYPE(cv) != SVt_PVCV) | |
1786 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); | |
1787 | ||
a0d0e21e | 1788 | if (!cv || !CvROOT(cv)) { |
79072805 LW |
1789 | if (dowarn) |
1790 | warn("SIG%s handler \"%s\" not defined.\n", | |
00d579c5 GS |
1791 | sig_name[sig], (gv ? GvENAME(gv) |
1792 | : ((cv && CvGV(cv)) | |
1793 | ? GvENAME(CvGV(cv)) | |
1794 | : "__ANON__"))); | |
1795 | goto cleanup; | |
79072805 LW |
1796 | } |
1797 | ||
88e89b8a | 1798 | oldstack = curstack; |
1799 | if (curstack != signalstack) | |
a0d0e21e | 1800 | AvFILL(signalstack) = 0; |
88e89b8a | 1801 | SWITCHSTACK(curstack, signalstack); |
79072805 | 1802 | |
84902520 | 1803 | if(psig_name[sig]) { |
88e89b8a | 1804 | sv = SvREFCNT_inc(psig_name[sig]); |
84902520 TB |
1805 | flags |= 64; |
1806 | sig_sv = sv; | |
1807 | } else { | |
ff0cee69 | 1808 | sv = sv_newmortal(); |
1809 | sv_setpv(sv,sig_name[sig]); | |
88e89b8a | 1810 | } |
a0d0e21e | 1811 | PUSHMARK(sp); |
79072805 | 1812 | PUSHs(sv); |
79072805 | 1813 | PUTBACK; |
a0d0e21e LW |
1814 | |
1815 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 LW |
1816 | |
1817 | SWITCHSTACK(signalstack, oldstack); | |
00d579c5 | 1818 | cleanup: |
84902520 TB |
1819 | if (flags & 1) |
1820 | savestack_ix -= 8; /* Unprotect save in progress. */ | |
1821 | if (flags & 2) { | |
1822 | cxstack[cxstack_ix].cx_type = type; | |
1823 | cxstack_ix -= 1; | |
1824 | } | |
1825 | if (flags & 4) | |
1826 | markstack_ptr--; | |
1827 | if (flags & 8) | |
1828 | retstack_ix--; | |
1829 | if (flags & 16) | |
1830 | scopestack_ix -= 1; | |
1831 | if (flags & 64) | |
1832 | SvREFCNT_dec(sv); | |
1833 | op = myop; /* Apparently not needed... */ | |
1834 | ||
1835 | Sv = tSv; /* Restore global temporaries. */ | |
1836 | Xpv = tXpv; | |
79072805 LW |
1837 | return; |
1838 | } | |
4e35701f NIS |
1839 | |
1840 |