Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
9607fc9c | 3 | * Copyright (c) 1991-1997, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "Sam sat on the ground and put his head in his hands. 'I wish I had never | |
12 | * come here, and I don't want to see no more magic,' he said, and fell silent." | |
79072805 LW |
13 | */ |
14 | ||
15 | #include "EXTERN.h" | |
16 | #include "perl.h" | |
17 | ||
e6d9441c | 18 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e LW |
19 | #ifdef I_UNISTD |
20 | # include <unistd.h> | |
21 | #endif | |
a0d0e21e | 22 | |
5cd24f17 | 23 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
24 | # ifndef NGROUPS |
25 | # define NGROUPS 32 | |
26 | # endif | |
27 | #endif | |
28 | ||
c07a80fd | 29 | /* |
30 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
31 | */ | |
32 | ||
33 | struct magic_state { | |
34 | SV* mgs_sv; | |
35 | U32 mgs_flags; | |
36 | }; | |
37 | typedef struct magic_state MGS; | |
38 | ||
39 | static void restore_magic _((void *p)); | |
40 | ||
48e43a1c | 41 | static void |
8ac85365 | 42 | save_magic(MGS *mgs, SV *sv) |
c07a80fd | 43 | { |
c07a80fd | 44 | assert(SvMAGICAL(sv)); |
45 | ||
c07a80fd | 46 | mgs->mgs_sv = sv; |
47 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
48 | SAVEDESTRUCTOR(restore_magic, mgs); | |
49 | ||
50 | SvMAGICAL_off(sv); | |
51 | SvREADONLY_off(sv); | |
52 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
c07a80fd | 53 | } |
54 | ||
55 | static void | |
8ac85365 | 56 | restore_magic(void *p) |
c07a80fd | 57 | { |
48e43a1c | 58 | MGS* mgs = (MGS*)p; |
c07a80fd | 59 | SV* sv = mgs->mgs_sv; |
60 | ||
61 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
62 | { | |
63 | if (mgs->mgs_flags) | |
64 | SvFLAGS(sv) |= mgs->mgs_flags; | |
65 | else | |
66 | mg_magical(sv); | |
67 | if (SvGMAGICAL(sv)) | |
68 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
69 | } | |
c07a80fd | 70 | } |
71 | ||
8990e307 | 72 | void |
8ac85365 | 73 | mg_magical(SV *sv) |
8990e307 LW |
74 | { |
75 | MAGIC* mg; | |
76 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
77 | MGVTBL* vtbl = mg->mg_virtual; | |
78 | if (vtbl) { | |
a0d0e21e | 79 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
80 | SvGMAGICAL_on(sv); |
81 | if (vtbl->svt_set) | |
82 | SvSMAGICAL_on(sv); | |
83 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) | |
84 | SvRMAGICAL_on(sv); | |
85 | } | |
86 | } | |
87 | } | |
88 | ||
79072805 | 89 | int |
8ac85365 | 90 | mg_get(SV *sv) |
79072805 | 91 | { |
48e43a1c | 92 | MGS mgs; |
79072805 | 93 | MAGIC* mg; |
c6496cc7 | 94 | MAGIC** mgp; |
760ac839 | 95 | int mgp_valid = 0; |
463ee0b2 | 96 | |
c07a80fd | 97 | ENTER; |
48e43a1c | 98 | save_magic(&mgs, sv); |
463ee0b2 | 99 | |
c6496cc7 | 100 | mgp = &SvMAGIC(sv); |
101 | while ((mg = *mgp) != 0) { | |
79072805 | 102 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e | 103 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
79072805 | 104 | (*vtbl->svt_get)(sv, mg); |
c6496cc7 | 105 | /* Ignore this magic if it's been deleted */ |
48e43a1c CS |
106 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
107 | (mg->mg_flags & MGf_GSKIP)) | |
108 | mgs.mgs_flags = 0; | |
a0d0e21e | 109 | } |
c6496cc7 | 110 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 111 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 112 | mgp = &mg->mg_moremagic; |
760ac839 LW |
113 | mgp_valid = 1; |
114 | } | |
115 | else | |
116 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 117 | } |
463ee0b2 | 118 | |
c07a80fd | 119 | LEAVE; |
79072805 LW |
120 | return 0; |
121 | } | |
122 | ||
123 | int | |
8ac85365 | 124 | mg_set(SV *sv) |
79072805 | 125 | { |
48e43a1c | 126 | MGS mgs; |
79072805 | 127 | MAGIC* mg; |
463ee0b2 LW |
128 | MAGIC* nextmg; |
129 | ||
c07a80fd | 130 | ENTER; |
48e43a1c | 131 | save_magic(&mgs, sv); |
463ee0b2 LW |
132 | |
133 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 134 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 135 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
136 | if (mg->mg_flags & MGf_GSKIP) { |
137 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
48e43a1c | 138 | mgs.mgs_flags = 0; |
a0d0e21e | 139 | } |
79072805 LW |
140 | if (vtbl && vtbl->svt_set) |
141 | (*vtbl->svt_set)(sv, mg); | |
142 | } | |
463ee0b2 | 143 | |
c07a80fd | 144 | LEAVE; |
79072805 LW |
145 | return 0; |
146 | } | |
147 | ||
148 | U32 | |
8ac85365 | 149 | mg_len(SV *sv) |
79072805 LW |
150 | { |
151 | MAGIC* mg; | |
748a9306 | 152 | char *junk; |
463ee0b2 | 153 | STRLEN len; |
463ee0b2 | 154 | |
79072805 LW |
155 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
156 | MGVTBL* vtbl = mg->mg_virtual; | |
85e6fe83 | 157 | if (vtbl && vtbl->svt_len) { |
48e43a1c CS |
158 | MGS mgs; |
159 | ||
c07a80fd | 160 | ENTER; |
48e43a1c | 161 | save_magic(&mgs, sv); |
a0d0e21e | 162 | /* omit MGf_GSKIP -- not changed here */ |
85e6fe83 | 163 | len = (*vtbl->svt_len)(sv, mg); |
c07a80fd | 164 | LEAVE; |
85e6fe83 LW |
165 | return len; |
166 | } | |
167 | } | |
168 | ||
748a9306 | 169 | junk = SvPV(sv, len); |
463ee0b2 | 170 | return len; |
79072805 LW |
171 | } |
172 | ||
173 | int | |
8ac85365 | 174 | mg_clear(SV *sv) |
79072805 | 175 | { |
48e43a1c | 176 | MGS mgs; |
79072805 | 177 | MAGIC* mg; |
463ee0b2 | 178 | |
c07a80fd | 179 | ENTER; |
48e43a1c | 180 | save_magic(&mgs, sv); |
463ee0b2 | 181 | |
79072805 LW |
182 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
183 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
184 | /* omit GSKIP -- never set here */ |
185 | ||
79072805 LW |
186 | if (vtbl && vtbl->svt_clear) |
187 | (*vtbl->svt_clear)(sv, mg); | |
188 | } | |
463ee0b2 | 189 | |
c07a80fd | 190 | LEAVE; |
79072805 LW |
191 | return 0; |
192 | } | |
193 | ||
93a17b20 | 194 | MAGIC* |
8ac85365 | 195 | mg_find(SV *sv, int type) |
93a17b20 LW |
196 | { |
197 | MAGIC* mg; | |
93a17b20 LW |
198 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
199 | if (mg->mg_type == type) | |
200 | return mg; | |
201 | } | |
202 | return 0; | |
203 | } | |
204 | ||
79072805 | 205 | int |
8ac85365 | 206 | mg_copy(SV *sv, SV *nsv, char *key, I32 klen) |
79072805 | 207 | { |
463ee0b2 | 208 | int count = 0; |
79072805 | 209 | MAGIC* mg; |
463ee0b2 LW |
210 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
211 | if (isUPPER(mg->mg_type)) { | |
a0d0e21e | 212 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 213 | count++; |
79072805 | 214 | } |
79072805 | 215 | } |
463ee0b2 | 216 | return count; |
79072805 LW |
217 | } |
218 | ||
219 | int | |
8ac85365 | 220 | mg_free(SV *sv) |
79072805 LW |
221 | { |
222 | MAGIC* mg; | |
223 | MAGIC* moremagic; | |
224 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
225 | MGVTBL* vtbl = mg->mg_virtual; | |
226 | moremagic = mg->mg_moremagic; | |
227 | if (vtbl && vtbl->svt_free) | |
228 | (*vtbl->svt_free)(sv, mg); | |
93a17b20 | 229 | if (mg->mg_ptr && mg->mg_type != 'g') |
88e89b8a | 230 | if (mg->mg_len >= 0) |
231 | Safefree(mg->mg_ptr); | |
232 | else if (mg->mg_len == HEf_SVKEY) | |
233 | SvREFCNT_dec((SV*)mg->mg_ptr); | |
85e6fe83 | 234 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 235 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
236 | Safefree(mg); |
237 | } | |
238 | SvMAGIC(sv) = 0; | |
239 | return 0; | |
240 | } | |
241 | ||
242 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
243 | #include <signal.h> | |
244 | #endif | |
245 | ||
93a17b20 | 246 | U32 |
8ac85365 | 247 | magic_len(SV *sv, MAGIC *mg) |
93a17b20 | 248 | { |
a863c7d1 | 249 | dTHR; |
93a17b20 LW |
250 | register I32 paren; |
251 | register char *s; | |
252 | register I32 i; | |
bbce6d69 | 253 | register REGEXP *rx; |
748a9306 | 254 | char *t; |
93a17b20 LW |
255 | |
256 | switch (*mg->mg_ptr) { | |
257 | case '1': case '2': case '3': case '4': | |
258 | case '5': case '6': case '7': case '8': case '9': case '&': | |
bbce6d69 | 259 | if (curpm && (rx = curpm->op_pmregexp)) { |
93a17b20 LW |
260 | paren = atoi(mg->mg_ptr); |
261 | getparen: | |
bbce6d69 | 262 | if (paren <= rx->nparens && |
263 | (s = rx->startp[paren]) && | |
264 | (t = rx->endp[paren])) | |
265 | { | |
748a9306 | 266 | i = t - s; |
71be2cbc | 267 | if (i >= 0) |
93a17b20 | 268 | return i; |
93a17b20 | 269 | } |
93a17b20 | 270 | } |
748a9306 | 271 | return 0; |
93a17b20 | 272 | case '+': |
bbce6d69 | 273 | if (curpm && (rx = curpm->op_pmregexp)) { |
274 | paren = rx->lastparen; | |
13f57bf8 CS |
275 | if (paren) |
276 | goto getparen; | |
93a17b20 | 277 | } |
748a9306 | 278 | return 0; |
93a17b20 | 279 | case '`': |
bbce6d69 | 280 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 | 281 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 | 282 | i = rx->startp[0] - s; |
71be2cbc | 283 | if (i >= 0) |
93a17b20 | 284 | return i; |
93a17b20 | 285 | } |
93a17b20 | 286 | } |
748a9306 | 287 | return 0; |
93a17b20 | 288 | case '\'': |
bbce6d69 | 289 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 CS |
290 | if (rx->subend && (s = rx->endp[0])) { |
291 | i = rx->subend - s; | |
292 | if (i >= 0) | |
5cd24f17 | 293 | return i; |
93a17b20 | 294 | } |
93a17b20 | 295 | } |
748a9306 | 296 | return 0; |
93a17b20 LW |
297 | case ',': |
298 | return (STRLEN)ofslen; | |
299 | case '\\': | |
300 | return (STRLEN)orslen; | |
301 | } | |
302 | magic_get(sv,mg); | |
303 | if (!SvPOK(sv) && SvNIOK(sv)) | |
463ee0b2 | 304 | sv_2pv(sv, &na); |
93a17b20 LW |
305 | if (SvPOK(sv)) |
306 | return SvCUR(sv); | |
307 | return 0; | |
308 | } | |
309 | ||
79072805 | 310 | int |
8ac85365 | 311 | magic_get(SV *sv, MAGIC *mg) |
79072805 | 312 | { |
a863c7d1 | 313 | dTHR; |
79072805 LW |
314 | register I32 paren; |
315 | register char *s; | |
316 | register I32 i; | |
bbce6d69 | 317 | register REGEXP *rx; |
748a9306 | 318 | char *t; |
79072805 LW |
319 | |
320 | switch (*mg->mg_ptr) { | |
748a9306 LW |
321 | case '\001': /* ^A */ |
322 | sv_setsv(sv, bodytarget); | |
323 | break; | |
79072805 | 324 | case '\004': /* ^D */ |
188ea221 | 325 | sv_setiv(sv, (IV)(debug & 32767)); |
79072805 | 326 | break; |
28f23441 | 327 | case '\005': /* ^E */ |
328 | #ifdef VMS | |
329 | { | |
330 | # include <descrip.h> | |
331 | # include <starlet.h> | |
332 | char msg[255]; | |
333 | $DESCRIPTOR(msgdsc,msg); | |
946ec16e | 334 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 | 335 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
336 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
337 | else | |
338 | sv_setpv(sv,""); | |
339 | } | |
340 | #else | |
88e89b8a | 341 | #ifdef OS2 |
fb73857a | 342 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
343 | sv_setnv(sv, (double)errno); | |
344 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
345 | } else { | |
346 | if (errno != errno_isOS2) | |
347 | Perl_rc = _syserrno(); | |
348 | sv_setnv(sv, (double)Perl_rc); | |
349 | sv_setpv(sv, os2error(Perl_rc)); | |
350 | } | |
88e89b8a | 351 | #else |
22fae026 TM |
352 | #ifdef WIN32 |
353 | { | |
354 | DWORD dwErr = GetLastError(); | |
355 | sv_setnv(sv, (double)dwErr); | |
356 | if (dwErr) | |
357 | win32_str_os_error(sv, dwErr); | |
358 | else | |
359 | sv_setpv(sv, ""); | |
360 | SetLastError(dwErr); | |
361 | } | |
362 | #else | |
946ec16e | 363 | sv_setnv(sv, (double)errno); |
28f23441 | 364 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
365 | #endif | |
88e89b8a | 366 | #endif |
22fae026 | 367 | #endif |
946ec16e | 368 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 369 | break; |
79072805 | 370 | case '\006': /* ^F */ |
188ea221 | 371 | sv_setiv(sv, (IV)maxsysfd); |
79072805 | 372 | break; |
a0d0e21e | 373 | case '\010': /* ^H */ |
188ea221 | 374 | sv_setiv(sv, (IV)hints); |
a0d0e21e | 375 | break; |
79072805 LW |
376 | case '\t': /* ^I */ |
377 | if (inplace) | |
378 | sv_setpv(sv, inplace); | |
379 | else | |
188ea221 | 380 | sv_setsv(sv, &sv_undef); |
79072805 | 381 | break; |
28f23441 | 382 | case '\017': /* ^O */ |
188ea221 | 383 | sv_setpv(sv, osname); |
28f23441 | 384 | break; |
79072805 | 385 | case '\020': /* ^P */ |
188ea221 | 386 | sv_setiv(sv, (IV)perldb); |
79072805 | 387 | break; |
fb73857a | 388 | case '\023': /* ^S */ |
d58bf5aa MB |
389 | { |
390 | dTHR; | |
391 | if (lex_state != LEX_NOTPARSING) | |
392 | SvOK_off(sv); | |
393 | else if (in_eval) | |
394 | sv_setiv(sv, 1); | |
395 | else | |
396 | sv_setiv(sv, 0); | |
397 | } | |
fb73857a | 398 | break; |
79072805 | 399 | case '\024': /* ^T */ |
88e89b8a | 400 | #ifdef BIG_TIME |
188ea221 | 401 | sv_setnv(sv, basetime); |
88e89b8a | 402 | #else |
188ea221 | 403 | sv_setiv(sv, (IV)basetime); |
88e89b8a | 404 | #endif |
79072805 LW |
405 | break; |
406 | case '\027': /* ^W */ | |
188ea221 | 407 | sv_setiv(sv, (IV)dowarn); |
79072805 LW |
408 | break; |
409 | case '1': case '2': case '3': case '4': | |
410 | case '5': case '6': case '7': case '8': case '9': case '&': | |
bbce6d69 | 411 | if (curpm && (rx = curpm->op_pmregexp)) { |
a863c7d1 MB |
412 | /* |
413 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
414 | * XXX Does the new way break anything? | |
415 | */ | |
416 | paren = atoi(mg->mg_ptr); | |
79072805 | 417 | getparen: |
bbce6d69 | 418 | if (paren <= rx->nparens && |
419 | (s = rx->startp[paren]) && | |
420 | (t = rx->endp[paren])) | |
421 | { | |
748a9306 | 422 | i = t - s; |
13f57bf8 | 423 | getrx: |
748a9306 | 424 | if (i >= 0) { |
13f57bf8 CS |
425 | bool was_tainted; |
426 | if (tainting) { | |
427 | was_tainted = tainted; | |
428 | tainted = FALSE; | |
429 | } | |
79072805 | 430 | sv_setpvn(sv,s,i); |
13f57bf8 | 431 | if (tainting) |
c277df42 | 432 | tainted = was_tainted || RX_MATCH_TAINTED(rx); |
748a9306 LW |
433 | break; |
434 | } | |
79072805 | 435 | } |
79072805 | 436 | } |
748a9306 | 437 | sv_setsv(sv,&sv_undef); |
79072805 LW |
438 | break; |
439 | case '+': | |
bbce6d69 | 440 | if (curpm && (rx = curpm->op_pmregexp)) { |
441 | paren = rx->lastparen; | |
a0d0e21e LW |
442 | if (paren) |
443 | goto getparen; | |
79072805 | 444 | } |
748a9306 | 445 | sv_setsv(sv,&sv_undef); |
79072805 LW |
446 | break; |
447 | case '`': | |
bbce6d69 | 448 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 | 449 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 | 450 | i = rx->startp[0] - s; |
13f57bf8 | 451 | goto getrx; |
79072805 | 452 | } |
79072805 | 453 | } |
748a9306 | 454 | sv_setsv(sv,&sv_undef); |
79072805 LW |
455 | break; |
456 | case '\'': | |
bbce6d69 | 457 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 CS |
458 | if (rx->subend && (s = rx->endp[0])) { |
459 | i = rx->subend - s; | |
460 | goto getrx; | |
79072805 | 461 | } |
79072805 | 462 | } |
748a9306 | 463 | sv_setsv(sv,&sv_undef); |
79072805 LW |
464 | break; |
465 | case '.': | |
466 | #ifndef lint | |
a0d0e21e | 467 | if (GvIO(last_in_gv)) { |
188ea221 | 468 | sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv))); |
79072805 LW |
469 | } |
470 | #endif | |
471 | break; | |
472 | case '?': | |
809a5acc MB |
473 | { |
474 | dTHR; | |
475 | sv_setiv(sv, (IV)STATUS_CURRENT); | |
ff0cee69 | 476 | #ifdef COMPLEX_STATUS |
809a5acc MB |
477 | LvTARGOFF(sv) = statusvalue; |
478 | LvTARGLEN(sv) = statusvalue_vms; | |
ff0cee69 | 479 | #endif |
809a5acc | 480 | } |
79072805 LW |
481 | break; |
482 | case '^': | |
a0d0e21e | 483 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 LW |
484 | if (s) |
485 | sv_setpv(sv,s); | |
486 | else { | |
487 | sv_setpv(sv,GvENAME(defoutgv)); | |
488 | sv_catpv(sv,"_TOP"); | |
489 | } | |
490 | break; | |
491 | case '~': | |
a0d0e21e | 492 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 LW |
493 | if (!s) |
494 | s = GvENAME(defoutgv); | |
495 | sv_setpv(sv,s); | |
496 | break; | |
497 | #ifndef lint | |
498 | case '=': | |
188ea221 | 499 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 LW |
500 | break; |
501 | case '-': | |
188ea221 | 502 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 LW |
503 | break; |
504 | case '%': | |
188ea221 | 505 | sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv))); |
79072805 LW |
506 | break; |
507 | #endif | |
508 | case ':': | |
509 | break; | |
510 | case '/': | |
511 | break; | |
512 | case '[': | |
0f15f207 | 513 | WITH_THR(sv_setiv(sv, (IV)curcop->cop_arybase)); |
79072805 LW |
514 | break; |
515 | case '|': | |
188ea221 | 516 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
517 | break; |
518 | case ',': | |
519 | sv_setpvn(sv,ofs,ofslen); | |
520 | break; | |
521 | case '\\': | |
522 | sv_setpvn(sv,ors,orslen); | |
523 | break; | |
524 | case '#': | |
525 | sv_setpv(sv,ofmt); | |
526 | break; | |
527 | case '!': | |
a5f75d66 | 528 | #ifdef VMS |
946ec16e | 529 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 530 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 531 | #else |
88e89b8a | 532 | { |
533 | int saveerrno = errno; | |
946ec16e | 534 | sv_setnv(sv, (double)errno); |
88e89b8a | 535 | #ifdef OS2 |
536 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
537 | else | |
a5f75d66 | 538 | #endif |
2304df62 | 539 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 540 | errno = saveerrno; |
541 | } | |
542 | #endif | |
946ec16e | 543 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
544 | break; |
545 | case '<': | |
188ea221 | 546 | sv_setiv(sv, (IV)uid); |
79072805 LW |
547 | break; |
548 | case '>': | |
188ea221 | 549 | sv_setiv(sv, (IV)euid); |
79072805 LW |
550 | break; |
551 | case '(': | |
188ea221 | 552 | sv_setiv(sv, (IV)gid); |
fc36a67e | 553 | sv_setpvf(sv, "%Vd", (IV)gid); |
79072805 LW |
554 | goto add_groups; |
555 | case ')': | |
188ea221 | 556 | sv_setiv(sv, (IV)egid); |
fc36a67e | 557 | sv_setpvf(sv, "%Vd", (IV)egid); |
79072805 | 558 | add_groups: |
79072805 | 559 | #ifdef HAS_GETGROUPS |
79072805 | 560 | { |
a0d0e21e | 561 | Groups_t gary[NGROUPS]; |
79072805 | 562 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 563 | while (--i >= 0) |
fc36a67e | 564 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 LW |
565 | } |
566 | #endif | |
29355cf7 | 567 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
568 | break; |
569 | case '*': | |
570 | break; | |
571 | case '0': | |
572 | break; | |
a863c7d1 MB |
573 | #ifdef USE_THREADS |
574 | case '@': | |
38a03e6e | 575 | sv_setsv(sv, thr->errsv); |
a863c7d1 MB |
576 | break; |
577 | #endif /* USE_THREADS */ | |
79072805 | 578 | } |
a0d0e21e | 579 | return 0; |
79072805 LW |
580 | } |
581 | ||
582 | int | |
8ac85365 | 583 | magic_getuvar(SV *sv, MAGIC *mg) |
79072805 LW |
584 | { |
585 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
586 | ||
587 | if (uf && uf->uf_val) | |
588 | (*uf->uf_val)(uf->uf_index, sv); | |
589 | return 0; | |
590 | } | |
591 | ||
592 | int | |
8ac85365 | 593 | magic_setenv(SV *sv, MAGIC *mg) |
79072805 LW |
594 | { |
595 | register char *s; | |
88e89b8a | 596 | char *ptr; |
5aabfad6 | 597 | STRLEN len, klen; |
a0d0e21e | 598 | I32 i; |
1e422769 | 599 | |
a0d0e21e | 600 | s = SvPV(sv,len); |
5aabfad6 | 601 | ptr = MgPV(mg,klen); |
88e89b8a | 602 | my_setenv(ptr, s); |
1e422769 | 603 | |
a0d0e21e LW |
604 | #ifdef DYNAMIC_ENV_FETCH |
605 | /* We just undefd an environment var. Is a replacement */ | |
606 | /* waiting in the wings? */ | |
607 | if (!len) { | |
5aabfad6 | 608 | SV **valp; |
609 | if ((valp = hv_fetch(GvHVn(envgv), ptr, klen, FALSE))) | |
610 | s = SvPV(*valp, len); | |
a0d0e21e LW |
611 | } |
612 | #endif | |
1e422769 | 613 | |
39e571d4 | 614 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
615 | /* And you'll never guess what the dog had */ |
616 | /* in its mouth... */ | |
463ee0b2 | 617 | if (tainting) { |
1e422769 | 618 | MgTAINTEDDIR_off(mg); |
619 | #ifdef VMS | |
5aabfad6 | 620 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 621 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
622 | struct stat sbuf; | |
623 | int i = 0, j = 0; | |
624 | ||
625 | do { /* DCL$PATH may be a search list */ | |
626 | while (1) { /* as may dev portion of any element */ | |
627 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
628 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
629 | cando_by_name(S_IWUSR,0,elt) ) { | |
630 | MgTAINTEDDIR_on(mg); | |
631 | return 0; | |
632 | } | |
633 | } | |
634 | if ((cp = strchr(elt, ':')) != Nullch) | |
635 | *cp = '\0'; | |
636 | if (my_trnlnm(elt, eltbuf, j++)) | |
637 | elt = eltbuf; | |
638 | else | |
639 | break; | |
640 | } | |
641 | j = 0; | |
642 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
643 | } | |
644 | #endif /* VMS */ | |
5aabfad6 | 645 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 646 | char *strend = s + len; |
463ee0b2 LW |
647 | |
648 | while (s < strend) { | |
96827780 | 649 | char tmpbuf[256]; |
1e422769 | 650 | struct stat st; |
96827780 | 651 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 652 | s, strend, ':', &i); |
463ee0b2 | 653 | s++; |
96827780 MB |
654 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
655 | || *tmpbuf != '/' | |
656 | || (Stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { | |
8990e307 | 657 | MgTAINTEDDIR_on(mg); |
1e422769 | 658 | return 0; |
659 | } | |
463ee0b2 | 660 | } |
79072805 LW |
661 | } |
662 | } | |
39e571d4 | 663 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 664 | |
79072805 LW |
665 | return 0; |
666 | } | |
667 | ||
668 | int | |
8ac85365 | 669 | magic_clearenv(SV *sv, MAGIC *mg) |
85e6fe83 | 670 | { |
5aabfad6 | 671 | my_setenv(MgPV(mg,na),Nullch); |
85e6fe83 LW |
672 | return 0; |
673 | } | |
674 | ||
88e89b8a | 675 | int |
8ac85365 | 676 | magic_set_all_env(SV *sv, MAGIC *mg) |
fb73857a | 677 | { |
678 | #if defined(VMS) | |
679 | die("Can't make list assignment to %%ENV on this system"); | |
680 | #else | |
d58bf5aa | 681 | dTHR; |
fb73857a | 682 | if (localizing) { |
683 | HE* entry; | |
684 | magic_clear_all_env(sv,mg); | |
685 | hv_iterinit((HV*)sv); | |
686 | while (entry = hv_iternext((HV*)sv)) { | |
687 | I32 keylen; | |
688 | my_setenv(hv_iterkey(entry, &keylen), | |
689 | SvPV(hv_iterval((HV*)sv, entry), na)); | |
690 | } | |
691 | } | |
692 | #endif | |
693 | return 0; | |
694 | } | |
695 | ||
696 | int | |
8ac85365 | 697 | magic_clear_all_env(SV *sv, MAGIC *mg) |
66b1d557 | 698 | { |
3e3baf6d TB |
699 | #if defined(VMS) |
700 | die("Can't make list assignment to %%ENV on this system"); | |
701 | #else | |
702 | #ifdef WIN32 | |
703 | char *envv = GetEnvironmentStrings(); | |
704 | char *cur = envv; | |
705 | STRLEN len; | |
706 | while (*cur) { | |
707 | char *end = strchr(cur,'='); | |
708 | if (end && end != cur) { | |
709 | *end = '\0'; | |
710 | my_setenv(cur,Nullch); | |
711 | *end = '='; | |
712 | cur += strlen(end+1)+1; | |
713 | } | |
714 | else if ((len = strlen(cur))) | |
715 | cur += len+1; | |
716 | } | |
717 | FreeEnvironmentStrings(envv); | |
66b1d557 HM |
718 | #else |
719 | I32 i; | |
720 | ||
721 | if (environ == origenviron) | |
722 | New(901, environ, 1, char*); | |
723 | else | |
724 | for (i = 0; environ[i]; i++) | |
725 | Safefree(environ[i]); | |
726 | environ[0] = Nullch; | |
727 | ||
66b1d557 | 728 | #endif |
3e3baf6d TB |
729 | #endif |
730 | return 0; | |
66b1d557 HM |
731 | } |
732 | ||
733 | int | |
8ac85365 | 734 | magic_getsig(SV *sv, MAGIC *mg) |
88e89b8a | 735 | { |
736 | I32 i; | |
737 | /* Are we fetching a signal entry? */ | |
5aabfad6 | 738 | i = whichsig(MgPV(mg,na)); |
88e89b8a | 739 | if (i) { |
740 | if(psig_ptr[i]) | |
741 | sv_setsv(sv,psig_ptr[i]); | |
742 | else { | |
ff68c719 | 743 | Sighandler_t sigstate = rsignal_state(i); |
744 | ||
88e89b8a | 745 | /* cache state so we don't fetch it again */ |
ff68c719 | 746 | if(sigstate == SIG_IGN) |
88e89b8a | 747 | sv_setpv(sv,"IGNORE"); |
748 | else | |
749 | sv_setsv(sv,&sv_undef); | |
750 | psig_ptr[i] = SvREFCNT_inc(sv); | |
751 | SvTEMP_off(sv); | |
752 | } | |
753 | } | |
754 | return 0; | |
755 | } | |
756 | int | |
8ac85365 | 757 | magic_clearsig(SV *sv, MAGIC *mg) |
88e89b8a | 758 | { |
759 | I32 i; | |
760 | /* Are we clearing a signal entry? */ | |
5aabfad6 | 761 | i = whichsig(MgPV(mg,na)); |
88e89b8a | 762 | if (i) { |
763 | if(psig_ptr[i]) { | |
764 | SvREFCNT_dec(psig_ptr[i]); | |
765 | psig_ptr[i]=0; | |
766 | } | |
767 | if(psig_name[i]) { | |
768 | SvREFCNT_dec(psig_name[i]); | |
769 | psig_name[i]=0; | |
770 | } | |
771 | } | |
772 | return 0; | |
773 | } | |
3d37d572 | 774 | |
85e6fe83 | 775 | int |
8ac85365 | 776 | magic_setsig(SV *sv, MAGIC *mg) |
79072805 | 777 | { |
11343788 | 778 | dTHR; |
79072805 LW |
779 | register char *s; |
780 | I32 i; | |
748a9306 | 781 | SV** svp; |
a0d0e21e | 782 | |
5aabfad6 | 783 | s = MgPV(mg,na); |
748a9306 LW |
784 | if (*s == '_') { |
785 | if (strEQ(s,"__DIE__")) | |
786 | svp = &diehook; | |
787 | else if (strEQ(s,"__WARN__")) | |
788 | svp = &warnhook; | |
789 | else if (strEQ(s,"__PARSE__")) | |
790 | svp = &parsehook; | |
791 | else | |
792 | croak("No such hook: %s", s); | |
793 | i = 0; | |
4633a7c4 LW |
794 | if (*svp) { |
795 | SvREFCNT_dec(*svp); | |
796 | *svp = 0; | |
797 | } | |
748a9306 LW |
798 | } |
799 | else { | |
800 | i = whichsig(s); /* ...no, a brick */ | |
801 | if (!i) { | |
802 | if (dowarn || strEQ(s,"ALARM")) | |
803 | warn("No such signal: SIG%s", s); | |
804 | return 0; | |
805 | } | |
ff0cee69 | 806 | SvREFCNT_dec(psig_name[i]); |
807 | SvREFCNT_dec(psig_ptr[i]); | |
88e89b8a | 808 | psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 809 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
ff0cee69 | 810 | psig_name[i] = newSVpv(s, strlen(s)); |
88e89b8a | 811 | SvREADONLY_on(psig_name[i]); |
748a9306 | 812 | } |
a0d0e21e | 813 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 814 | if (i) |
c23142e2 | 815 | (void)rsignal(i, sighandlerp); |
748a9306 LW |
816 | else |
817 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
818 | return 0; |
819 | } | |
820 | s = SvPV_force(sv,na); | |
748a9306 LW |
821 | if (strEQ(s,"IGNORE")) { |
822 | if (i) | |
ff68c719 | 823 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
824 | else |
825 | *svp = 0; | |
826 | } | |
827 | else if (strEQ(s,"DEFAULT") || !*s) { | |
828 | if (i) | |
ff68c719 | 829 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
830 | else |
831 | *svp = 0; | |
832 | } | |
79072805 | 833 | else { |
5aabfad6 | 834 | /* |
835 | * We should warn if HINT_STRICT_REFS, but without | |
836 | * access to a known hint bit in a known OP, we can't | |
837 | * tell whether HINT_STRICT_REFS is in force or not. | |
838 | */ | |
46fc3d4c | 839 | if (!strchr(s,':') && !strchr(s,'\'')) |
840 | sv_setpv(sv, form("main::%s", s)); | |
748a9306 | 841 | if (i) |
c23142e2 | 842 | (void)rsignal(i, sighandlerp); |
748a9306 LW |
843 | else |
844 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
845 | } |
846 | return 0; | |
847 | } | |
848 | ||
849 | int | |
8ac85365 | 850 | magic_setisa(SV *sv, MAGIC *mg) |
79072805 | 851 | { |
a0231f0e MB |
852 | HV *stash; |
853 | SV **svp; | |
854 | I32 fill; | |
855 | HV *basefields = Nullhv; | |
856 | GV **gvp; | |
857 | GV *gv; | |
858 | HE *he; | |
859 | static char *FIELDS = "FIELDS"; | |
860 | ||
463ee0b2 | 861 | sub_generation++; |
a0231f0e MB |
862 | |
863 | if (mg->mg_type == 'i') | |
864 | return 0; /* Ignore lower-case version of the magic */ | |
865 | ||
866 | stash = GvSTASH(mg->mg_obj); | |
867 | svp = AvARRAY((AV*)sv); | |
868 | ||
869 | for (fill = AvFILL((AV*)sv); fill >= 0; fill--, svp++) { | |
870 | HV *basestash = gv_stashsv(*svp, FALSE); | |
871 | ||
872 | if (!basestash) { | |
873 | if (dowarn) | |
874 | warn("No such package \"%_\" in @ISA assignment", *svp); | |
875 | continue; | |
876 | } | |
877 | gvp = (GV**)hv_fetch(basestash, FIELDS, 6, FALSE); | |
878 | if (gvp && *gvp && GvHV(*gvp)) { | |
879 | if (basefields) | |
880 | croak("Can't multiply inherit %%FIELDS"); | |
881 | basefields = GvHV(*gvp); | |
882 | } | |
883 | } | |
884 | ||
885 | if (!basefields) | |
886 | return 0; | |
887 | ||
888 | gv = (GV*)*hv_fetch(stash, FIELDS, 6, TRUE); | |
889 | if (!isGV(gv)) | |
890 | gv_init(gv, stash, FIELDS, 6, TRUE); | |
891 | if (!GvHV(gv)) | |
892 | GvHV(gv) = newHV(); | |
893 | if (HvKEYS(GvHV(gv))) | |
894 | croak("Inherited %%FIELDS can't override existing %%FIELDS"); | |
895 | ||
896 | hv_iterinit(GvHV(gv)); | |
897 | while ((he = hv_iternext(basefields))) | |
898 | hv_store(GvHV(gv), HeKEY(he), HeKLEN(he), HeVAL(he), HeHASH(he)); | |
899 | ||
463ee0b2 LW |
900 | return 0; |
901 | } | |
902 | ||
a0d0e21e LW |
903 | #ifdef OVERLOAD |
904 | ||
463ee0b2 | 905 | int |
8ac85365 | 906 | magic_setamagic(SV *sv, MAGIC *mg) |
463ee0b2 | 907 | { |
a0d0e21e LW |
908 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
909 | amagic_generation++; | |
463ee0b2 | 910 | |
a0d0e21e LW |
911 | return 0; |
912 | } | |
913 | #endif /* OVERLOAD */ | |
463ee0b2 | 914 | |
946ec16e | 915 | int |
8ac85365 | 916 | magic_setnkeys(SV *sv, MAGIC *mg) |
946ec16e | 917 | { |
918 | if (LvTARG(sv)) { | |
919 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
920 | LvTARG(sv) = Nullsv; /* Don't allow a ref to reassign this. */ | |
921 | } | |
922 | return 0; | |
923 | } | |
924 | ||
a0d0e21e | 925 | static int |
8ac85365 | 926 | magic_methpack(SV *sv, MAGIC *mg, char *meth) |
a0d0e21e LW |
927 | { |
928 | dSP; | |
463ee0b2 | 929 | |
a0d0e21e LW |
930 | ENTER; |
931 | SAVETMPS; | |
932 | PUSHMARK(sp); | |
933 | EXTEND(sp, 2); | |
934 | PUSHs(mg->mg_obj); | |
88e89b8a | 935 | if (mg->mg_ptr) { |
936 | if (mg->mg_len >= 0) | |
937 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
938 | else if (mg->mg_len == HEf_SVKEY) | |
939 | PUSHs((SV*)mg->mg_ptr); | |
940 | } | |
a0d0e21e LW |
941 | else if (mg->mg_type == 'p') |
942 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
943 | PUTBACK; |
944 | ||
a0d0e21e LW |
945 | if (perl_call_method(meth, G_SCALAR)) |
946 | sv_setsv(sv, *stack_sp--); | |
463ee0b2 | 947 | |
a0d0e21e LW |
948 | FREETMPS; |
949 | LEAVE; | |
950 | return 0; | |
951 | } | |
463ee0b2 | 952 | |
a0d0e21e | 953 | int |
8ac85365 | 954 | magic_getpack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
955 | { |
956 | magic_methpack(sv,mg,"FETCH"); | |
957 | if (mg->mg_ptr) | |
958 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
959 | return 0; |
960 | } | |
961 | ||
962 | int | |
8ac85365 | 963 | magic_setpack(SV *sv, MAGIC *mg) |
463ee0b2 | 964 | { |
463ee0b2 | 965 | dSP; |
463ee0b2 | 966 | |
a0d0e21e LW |
967 | PUSHMARK(sp); |
968 | EXTEND(sp, 3); | |
969 | PUSHs(mg->mg_obj); | |
88e89b8a | 970 | if (mg->mg_ptr) { |
971 | if (mg->mg_len >= 0) | |
972 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
973 | else if (mg->mg_len == HEf_SVKEY) | |
974 | PUSHs((SV*)mg->mg_ptr); | |
975 | } | |
a0d0e21e LW |
976 | else if (mg->mg_type == 'p') |
977 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
978 | PUSHs(sv); |
979 | PUTBACK; | |
980 | ||
a0d0e21e | 981 | perl_call_method("STORE", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
982 | |
983 | return 0; | |
984 | } | |
985 | ||
986 | int | |
8ac85365 | 987 | magic_clearpack(SV *sv, MAGIC *mg) |
463ee0b2 | 988 | { |
a0d0e21e LW |
989 | return magic_methpack(sv,mg,"DELETE"); |
990 | } | |
463ee0b2 | 991 | |
8ac85365 | 992 | int magic_wipepack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
993 | { |
994 | dSP; | |
463ee0b2 | 995 | |
a0d0e21e LW |
996 | PUSHMARK(sp); |
997 | XPUSHs(mg->mg_obj); | |
463ee0b2 | 998 | PUTBACK; |
463ee0b2 | 999 | |
a0d0e21e | 1000 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
1001 | |
1002 | return 0; | |
1003 | } | |
1004 | ||
1005 | int | |
8ac85365 | 1006 | magic_nextpack(SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1007 | { |
463ee0b2 | 1008 | dSP; |
a0d0e21e | 1009 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1010 | |
1011 | ENTER; | |
a0d0e21e LW |
1012 | SAVETMPS; |
1013 | PUSHMARK(sp); | |
1014 | EXTEND(sp, 2); | |
1015 | PUSHs(mg->mg_obj); | |
463ee0b2 LW |
1016 | if (SvOK(key)) |
1017 | PUSHs(key); | |
1018 | PUTBACK; | |
1019 | ||
a0d0e21e LW |
1020 | if (perl_call_method(meth, G_SCALAR)) |
1021 | sv_setsv(key, *stack_sp--); | |
463ee0b2 | 1022 | |
a0d0e21e LW |
1023 | FREETMPS; |
1024 | LEAVE; | |
79072805 LW |
1025 | return 0; |
1026 | } | |
1027 | ||
1028 | int | |
8ac85365 | 1029 | magic_existspack(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1030 | { |
1031 | return magic_methpack(sv,mg,"EXISTS"); | |
1032 | } | |
1033 | ||
1034 | int | |
8ac85365 | 1035 | magic_setdbline(SV *sv, MAGIC *mg) |
79072805 | 1036 | { |
11343788 | 1037 | dTHR; |
79072805 LW |
1038 | OP *o; |
1039 | I32 i; | |
1040 | GV* gv; | |
1041 | SV** svp; | |
1042 | ||
1043 | gv = DBline; | |
1044 | i = SvTRUE(sv); | |
188ea221 | 1045 | svp = av_fetch(GvAV(gv), |
5aabfad6 | 1046 | atoi(MgPV(mg,na)), FALSE); |
8990e307 | 1047 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 1048 | o->op_private = i; |
79072805 LW |
1049 | else |
1050 | warn("Can't break at that line\n"); | |
1051 | return 0; | |
1052 | } | |
1053 | ||
1054 | int | |
8ac85365 | 1055 | magic_getarylen(SV *sv, MAGIC *mg) |
79072805 | 1056 | { |
0f15f207 | 1057 | dTHR; |
a0d0e21e | 1058 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 LW |
1059 | return 0; |
1060 | } | |
1061 | ||
1062 | int | |
8ac85365 | 1063 | magic_setarylen(SV *sv, MAGIC *mg) |
79072805 | 1064 | { |
0f15f207 | 1065 | dTHR; |
a0d0e21e LW |
1066 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
1067 | return 0; | |
1068 | } | |
1069 | ||
1070 | int | |
8ac85365 | 1071 | magic_getpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1072 | { |
1073 | SV* lsv = LvTARG(sv); | |
1074 | ||
1075 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1076 | mg = mg_find(lsv, 'g'); | |
1077 | if (mg && mg->mg_len >= 0) { | |
0f15f207 | 1078 | dTHR; |
a0d0e21e LW |
1079 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); |
1080 | return 0; | |
1081 | } | |
1082 | } | |
1083 | (void)SvOK_off(sv); | |
1084 | return 0; | |
1085 | } | |
1086 | ||
1087 | int | |
8ac85365 | 1088 | magic_setpos(SV *sv, MAGIC *mg) |
a0d0e21e LW |
1089 | { |
1090 | SV* lsv = LvTARG(sv); | |
1091 | SSize_t pos; | |
1092 | STRLEN len; | |
1093 | ||
1094 | mg = 0; | |
1095 | ||
1096 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1097 | mg = mg_find(lsv, 'g'); | |
1098 | if (!mg) { | |
1099 | if (!SvOK(sv)) | |
1100 | return 0; | |
1101 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1102 | mg = mg_find(lsv, 'g'); | |
1103 | } | |
1104 | else if (!SvOK(sv)) { | |
1105 | mg->mg_len = -1; | |
1106 | return 0; | |
1107 | } | |
1108 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1109 | ||
0f15f207 | 1110 | WITH_THR(pos = SvIV(sv) - curcop->cop_arybase); |
a0d0e21e LW |
1111 | if (pos < 0) { |
1112 | pos += len; | |
1113 | if (pos < 0) | |
1114 | pos = 0; | |
1115 | } | |
1116 | else if (pos > len) | |
1117 | pos = len; | |
1118 | mg->mg_len = pos; | |
71be2cbc | 1119 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1120 | |
79072805 LW |
1121 | return 0; |
1122 | } | |
1123 | ||
1124 | int | |
8ac85365 | 1125 | magic_getglob(SV *sv, MAGIC *mg) |
79072805 | 1126 | { |
8646b087 | 1127 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1128 | SvFAKE_off(sv); | |
946ec16e | 1129 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1130 | SvFAKE_on(sv); |
1131 | } | |
1132 | else | |
946ec16e | 1133 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1134 | return 0; |
1135 | } | |
1136 | ||
1137 | int | |
8ac85365 | 1138 | magic_setglob(SV *sv, MAGIC *mg) |
79072805 LW |
1139 | { |
1140 | register char *s; | |
1141 | GV* gv; | |
1142 | ||
1143 | if (!SvOK(sv)) | |
1144 | return 0; | |
463ee0b2 | 1145 | s = SvPV(sv, na); |
79072805 LW |
1146 | if (*s == '*' && s[1]) |
1147 | s++; | |
85e6fe83 | 1148 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1149 | if (sv == (SV*)gv) |
1150 | return 0; | |
1151 | if (GvGP(sv)) | |
88e89b8a | 1152 | gp_free((GV*)sv); |
79072805 | 1153 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1154 | return 0; |
1155 | } | |
1156 | ||
1157 | int | |
8ac85365 | 1158 | magic_setsubstr(SV *sv, MAGIC *mg) |
79072805 | 1159 | { |
8990e307 LW |
1160 | STRLEN len; |
1161 | char *tmps = SvPV(sv,len); | |
1162 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1163 | return 0; |
1164 | } | |
1165 | ||
1166 | int | |
8ac85365 | 1167 | magic_gettaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1168 | { |
a863c7d1 | 1169 | dTHR; |
bbce6d69 | 1170 | TAINT_IF((mg->mg_len & 1) || |
1171 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1172 | return 0; |
1173 | } | |
1174 | ||
1175 | int | |
8ac85365 | 1176 | magic_settaint(SV *sv, MAGIC *mg) |
463ee0b2 | 1177 | { |
11343788 | 1178 | dTHR; |
748a9306 LW |
1179 | if (localizing) { |
1180 | if (localizing == 1) | |
1181 | mg->mg_len <<= 1; | |
1182 | else | |
1183 | mg->mg_len >>= 1; | |
a0d0e21e | 1184 | } |
748a9306 LW |
1185 | else if (tainted) |
1186 | mg->mg_len |= 1; | |
1187 | else | |
1188 | mg->mg_len &= ~1; | |
463ee0b2 LW |
1189 | return 0; |
1190 | } | |
1191 | ||
1192 | int | |
8ac85365 | 1193 | magic_setvec(SV *sv, MAGIC *mg) |
79072805 LW |
1194 | { |
1195 | do_vecset(sv); /* XXX slurp this routine */ | |
1196 | return 0; | |
1197 | } | |
1198 | ||
1199 | int | |
8ac85365 | 1200 | magic_getdefelem(SV *sv, MAGIC *mg) |
5f05dabc | 1201 | { |
71be2cbc | 1202 | SV *targ = Nullsv; |
5f05dabc | 1203 | if (LvTARGLEN(sv)) { |
68dc0745 | 1204 | if (mg->mg_obj) { |
1205 | HV* hv = (HV*)LvTARG(sv); | |
1206 | HE* he = hv_fetch_ent(hv, mg->mg_obj, FALSE, 0); | |
1207 | if (he) | |
1208 | targ = HeVAL(he); | |
1209 | } | |
1210 | else { | |
1211 | AV* av = (AV*)LvTARG(sv); | |
1212 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) | |
1213 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1214 | } | |
1215 | if (targ && targ != &sv_undef) { | |
e858de61 | 1216 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 | 1217 | /* somebody else defined it for us */ |
1218 | SvREFCNT_dec(LvTARG(sv)); | |
1219 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1220 | LvTARGLEN(sv) = 0; | |
1221 | SvREFCNT_dec(mg->mg_obj); | |
1222 | mg->mg_obj = Nullsv; | |
1223 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1224 | } | |
5f05dabc | 1225 | } |
71be2cbc | 1226 | else |
1227 | targ = LvTARG(sv); | |
1228 | sv_setsv(sv, targ ? targ : &sv_undef); | |
1229 | return 0; | |
1230 | } | |
1231 | ||
1232 | int | |
8ac85365 | 1233 | magic_setdefelem(SV *sv, MAGIC *mg) |
71be2cbc | 1234 | { |
1235 | if (LvTARGLEN(sv)) | |
68dc0745 | 1236 | vivify_defelem(sv); |
1237 | if (LvTARG(sv)) { | |
5f05dabc | 1238 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1239 | SvSETMAGIC(LvTARG(sv)); |
1240 | } | |
5f05dabc | 1241 | return 0; |
1242 | } | |
1243 | ||
1244 | int | |
8ac85365 | 1245 | magic_freedefelem(SV *sv, MAGIC *mg) |
5f05dabc | 1246 | { |
1247 | SvREFCNT_dec(LvTARG(sv)); | |
71be2cbc | 1248 | return 0; |
1249 | } | |
1250 | ||
1251 | void | |
8ac85365 | 1252 | vivify_defelem(SV *sv) |
71be2cbc | 1253 | { |
e858de61 | 1254 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
68dc0745 | 1255 | MAGIC* mg; |
1256 | SV* value; | |
71be2cbc | 1257 | |
68dc0745 | 1258 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1259 | return; |
68dc0745 | 1260 | if (mg->mg_obj) { |
1261 | HV* hv = (HV*)LvTARG(sv); | |
1262 | HE* he = hv_fetch_ent(hv, mg->mg_obj, TRUE, 0); | |
1263 | if (!he || (value = HeVAL(he)) == &sv_undef) | |
1264 | croak(no_helem, SvPV(mg->mg_obj, na)); | |
71be2cbc | 1265 | } |
68dc0745 | 1266 | else { |
1267 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1268 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1269 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1270 | else { | |
1271 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
1272 | if (!svp || (value = *svp) == &sv_undef) | |
1273 | croak(no_aelem, (I32)LvTARGOFF(sv)); | |
1274 | } | |
1275 | } | |
3e3baf6d | 1276 | (void)SvREFCNT_inc(value); |
68dc0745 | 1277 | SvREFCNT_dec(LvTARG(sv)); |
1278 | LvTARG(sv) = value; | |
71be2cbc | 1279 | LvTARGLEN(sv) = 0; |
68dc0745 | 1280 | SvREFCNT_dec(mg->mg_obj); |
1281 | mg->mg_obj = Nullsv; | |
1282 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1283 | } |
1284 | ||
1285 | int | |
8ac85365 | 1286 | magic_setmglob(SV *sv, MAGIC *mg) |
93a17b20 | 1287 | { |
a0d0e21e | 1288 | mg->mg_len = -1; |
c6496cc7 | 1289 | SvSCREAM_off(sv); |
93a17b20 LW |
1290 | return 0; |
1291 | } | |
1292 | ||
1293 | int | |
8ac85365 | 1294 | magic_setbm(SV *sv, MAGIC *mg) |
79072805 | 1295 | { |
463ee0b2 | 1296 | sv_unmagic(sv, 'B'); |
79072805 LW |
1297 | SvVALID_off(sv); |
1298 | return 0; | |
1299 | } | |
1300 | ||
1301 | int | |
8ac85365 | 1302 | magic_setfm(SV *sv, MAGIC *mg) |
55497cff | 1303 | { |
1304 | sv_unmagic(sv, 'f'); | |
1305 | SvCOMPILED_off(sv); | |
1306 | return 0; | |
1307 | } | |
1308 | ||
1309 | int | |
8ac85365 | 1310 | magic_setuvar(SV *sv, MAGIC *mg) |
79072805 LW |
1311 | { |
1312 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1313 | ||
1314 | if (uf && uf->uf_set) | |
1315 | (*uf->uf_set)(uf->uf_index, sv); | |
1316 | return 0; | |
1317 | } | |
1318 | ||
c277df42 IZ |
1319 | int |
1320 | magic_freeregexp(SV *sv, MAGIC *mg) | |
1321 | { | |
1322 | regexp *re = (regexp *)mg->mg_obj; | |
1323 | ReREFCNT_dec(re); | |
1324 | return 0; | |
1325 | } | |
1326 | ||
7a4c00b4 | 1327 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1328 | int |
8ac85365 | 1329 | magic_setcollxfrm(SV *sv, MAGIC *mg) |
bbce6d69 | 1330 | { |
1331 | /* | |
1332 | * René Descartes said "I think not." | |
1333 | * and vanished with a faint plop. | |
1334 | */ | |
7a4c00b4 | 1335 | if (mg->mg_ptr) { |
1336 | Safefree(mg->mg_ptr); | |
1337 | mg->mg_ptr = NULL; | |
1338 | mg->mg_len = -1; | |
1339 | } | |
bbce6d69 | 1340 | return 0; |
1341 | } | |
7a4c00b4 | 1342 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1343 | |
1344 | int | |
8ac85365 | 1345 | magic_set(SV *sv, MAGIC *mg) |
79072805 | 1346 | { |
11343788 | 1347 | dTHR; |
79072805 LW |
1348 | register char *s; |
1349 | I32 i; | |
8990e307 | 1350 | STRLEN len; |
79072805 | 1351 | switch (*mg->mg_ptr) { |
748a9306 LW |
1352 | case '\001': /* ^A */ |
1353 | sv_setsv(bodytarget, sv); | |
1354 | break; | |
79072805 | 1355 | case '\004': /* ^D */ |
8990e307 | 1356 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1357 | DEBUG_x(dump_all()); |
1358 | break; | |
28f23441 | 1359 | case '\005': /* ^E */ |
1360 | #ifdef VMS | |
1361 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1362 | #else | |
22fae026 TM |
1363 | #ifdef WIN32 |
1364 | SetLastError( SvIV(sv) ); | |
1365 | #else | |
f86702cc | 1366 | /* will anyone ever use this? */ |
1367 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
28f23441 | 1368 | #endif |
22fae026 | 1369 | #endif |
28f23441 | 1370 | break; |
79072805 | 1371 | case '\006': /* ^F */ |
463ee0b2 | 1372 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1373 | break; |
a0d0e21e LW |
1374 | case '\010': /* ^H */ |
1375 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1376 | break; | |
79072805 LW |
1377 | case '\t': /* ^I */ |
1378 | if (inplace) | |
1379 | Safefree(inplace); | |
1380 | if (SvOK(sv)) | |
a0d0e21e | 1381 | inplace = savepv(SvPV(sv,na)); |
79072805 LW |
1382 | else |
1383 | inplace = Nullch; | |
1384 | break; | |
28f23441 | 1385 | case '\017': /* ^O */ |
1386 | if (osname) | |
1387 | Safefree(osname); | |
1388 | if (SvOK(sv)) | |
1389 | osname = savepv(SvPV(sv,na)); | |
1390 | else | |
1391 | osname = Nullch; | |
1392 | break; | |
79072805 | 1393 | case '\020': /* ^P */ |
84902520 | 1394 | perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1395 | break; |
1396 | case '\024': /* ^T */ | |
88e89b8a | 1397 | #ifdef BIG_TIME |
1398 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); | |
1399 | #else | |
85e6fe83 | 1400 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1401 | #endif |
79072805 LW |
1402 | break; |
1403 | case '\027': /* ^W */ | |
463ee0b2 | 1404 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1405 | break; |
1406 | case '.': | |
748a9306 LW |
1407 | if (localizing) { |
1408 | if (localizing == 1) | |
1409 | save_sptr((SV**)&last_in_gv); | |
1410 | } | |
88e89b8a | 1411 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e | 1412 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 LW |
1413 | break; |
1414 | case '^': | |
a0d0e21e LW |
1415 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1416 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1417 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1418 | break; |
1419 | case '~': | |
a0d0e21e LW |
1420 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1421 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1422 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1423 | break; |
1424 | case '=': | |
a0d0e21e | 1425 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1426 | break; |
1427 | case '-': | |
a0d0e21e LW |
1428 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1429 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) | |
1430 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; | |
79072805 LW |
1431 | break; |
1432 | case '%': | |
a0d0e21e | 1433 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1434 | break; |
1435 | case '|': | |
4b65379b CS |
1436 | { |
1437 | IO *io = GvIOp(defoutgv); | |
1438 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) | |
1439 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1440 | else { | |
1441 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1442 | PerlIO *ofp = IoOFP(io); | |
1443 | if (ofp) | |
1444 | (void)PerlIO_flush(ofp); | |
1445 | IoFLAGS(io) |= IOf_FLUSH; | |
1446 | } | |
1447 | } | |
79072805 LW |
1448 | } |
1449 | break; | |
1450 | case '*': | |
463ee0b2 | 1451 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1452 | multiline = (i != 0); |
1453 | break; | |
1454 | case '/': | |
c07a80fd | 1455 | SvREFCNT_dec(nrs); |
1456 | nrs = newSVsv(sv); | |
1457 | SvREFCNT_dec(rs); | |
1458 | rs = SvREFCNT_inc(nrs); | |
79072805 LW |
1459 | break; |
1460 | case '\\': | |
1461 | if (ors) | |
1462 | Safefree(ors); | |
e3c19b7b CS |
1463 | if (SvOK(sv) || SvGMAGICAL(sv)) |
1464 | ors = savepv(SvPV(sv,orslen)); | |
1465 | else { | |
1466 | ors = Nullch; | |
1467 | orslen = 0; | |
1468 | } | |
79072805 LW |
1469 | break; |
1470 | case ',': | |
1471 | if (ofs) | |
1472 | Safefree(ofs); | |
a0d0e21e | 1473 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 LW |
1474 | break; |
1475 | case '#': | |
1476 | if (ofmt) | |
1477 | Safefree(ofmt); | |
a0d0e21e | 1478 | ofmt = savepv(SvPV(sv,na)); |
79072805 LW |
1479 | break; |
1480 | case '[': | |
a0d0e21e | 1481 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1482 | break; |
1483 | case '?': | |
ff0cee69 | 1484 | #ifdef COMPLEX_STATUS |
1485 | if (localizing == 2) { | |
1486 | statusvalue = LvTARGOFF(sv); | |
1487 | statusvalue_vms = LvTARGLEN(sv); | |
1488 | } | |
1489 | else | |
1490 | #endif | |
1491 | #ifdef VMSISH_STATUS | |
1492 | if (VMSISH_STATUS) | |
1493 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1494 | else | |
1495 | #endif | |
1496 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1497 | break; |
1498 | case '!': | |
f86702cc | 1499 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), |
1500 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); | |
79072805 LW |
1501 | break; |
1502 | case '<': | |
463ee0b2 | 1503 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1504 | if (delaymagic) { |
1505 | delaymagic |= DM_RUID; | |
1506 | break; /* don't do magic till later */ | |
1507 | } | |
1508 | #ifdef HAS_SETRUID | |
85e6fe83 | 1509 | (void)setruid((Uid_t)uid); |
79072805 LW |
1510 | #else |
1511 | #ifdef HAS_SETREUID | |
85e6fe83 | 1512 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 | 1513 | #else |
85e6fe83 LW |
1514 | #ifdef HAS_SETRESUID |
1515 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); | |
79072805 LW |
1516 | #else |
1517 | if (uid == euid) /* special case $< = $> */ | |
1518 | (void)setuid(uid); | |
a0d0e21e LW |
1519 | else { |
1520 | uid = (I32)getuid(); | |
463ee0b2 | 1521 | croak("setruid() not implemented"); |
a0d0e21e | 1522 | } |
79072805 LW |
1523 | #endif |
1524 | #endif | |
85e6fe83 | 1525 | #endif |
748a9306 | 1526 | uid = (I32)getuid(); |
4633a7c4 | 1527 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1528 | break; |
1529 | case '>': | |
463ee0b2 | 1530 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1531 | if (delaymagic) { |
1532 | delaymagic |= DM_EUID; | |
1533 | break; /* don't do magic till later */ | |
1534 | } | |
1535 | #ifdef HAS_SETEUID | |
85e6fe83 | 1536 | (void)seteuid((Uid_t)euid); |
79072805 LW |
1537 | #else |
1538 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1539 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1540 | #else | |
1541 | #ifdef HAS_SETRESUID | |
1542 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); | |
79072805 LW |
1543 | #else |
1544 | if (euid == uid) /* special case $> = $< */ | |
1545 | setuid(euid); | |
a0d0e21e LW |
1546 | else { |
1547 | euid = (I32)geteuid(); | |
463ee0b2 | 1548 | croak("seteuid() not implemented"); |
a0d0e21e | 1549 | } |
79072805 LW |
1550 | #endif |
1551 | #endif | |
85e6fe83 | 1552 | #endif |
79072805 | 1553 | euid = (I32)geteuid(); |
4633a7c4 | 1554 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1555 | break; |
1556 | case '(': | |
463ee0b2 | 1557 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1558 | if (delaymagic) { |
1559 | delaymagic |= DM_RGID; | |
1560 | break; /* don't do magic till later */ | |
1561 | } | |
1562 | #ifdef HAS_SETRGID | |
85e6fe83 | 1563 | (void)setrgid((Gid_t)gid); |
79072805 LW |
1564 | #else |
1565 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1566 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1567 | #else | |
1568 | #ifdef HAS_SETRESGID | |
1569 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); | |
79072805 LW |
1570 | #else |
1571 | if (gid == egid) /* special case $( = $) */ | |
1572 | (void)setgid(gid); | |
748a9306 LW |
1573 | else { |
1574 | gid = (I32)getgid(); | |
463ee0b2 | 1575 | croak("setrgid() not implemented"); |
748a9306 | 1576 | } |
79072805 LW |
1577 | #endif |
1578 | #endif | |
85e6fe83 | 1579 | #endif |
79072805 | 1580 | gid = (I32)getgid(); |
4633a7c4 | 1581 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1582 | break; |
1583 | case ')': | |
5cd24f17 | 1584 | #ifdef HAS_SETGROUPS |
1585 | { | |
1586 | char *p = SvPV(sv, na); | |
1587 | Groups_t gary[NGROUPS]; | |
1588 | ||
1589 | SET_NUMERIC_STANDARD(); | |
1590 | while (isSPACE(*p)) | |
1591 | ++p; | |
1592 | egid = I_V(atof(p)); | |
1593 | for (i = 0; i < NGROUPS; ++i) { | |
1594 | while (*p && !isSPACE(*p)) | |
1595 | ++p; | |
1596 | while (isSPACE(*p)) | |
1597 | ++p; | |
1598 | if (!*p) | |
1599 | break; | |
1600 | gary[i] = I_V(atof(p)); | |
1601 | } | |
8cc95fdb | 1602 | if (i) |
1603 | (void)setgroups(i, gary); | |
5cd24f17 | 1604 | } |
1605 | #else /* HAS_SETGROUPS */ | |
463ee0b2 | 1606 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1607 | #endif /* HAS_SETGROUPS */ |
79072805 LW |
1608 | if (delaymagic) { |
1609 | delaymagic |= DM_EGID; | |
1610 | break; /* don't do magic till later */ | |
1611 | } | |
1612 | #ifdef HAS_SETEGID | |
85e6fe83 | 1613 | (void)setegid((Gid_t)egid); |
79072805 LW |
1614 | #else |
1615 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1616 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1617 | #else | |
1618 | #ifdef HAS_SETRESGID | |
1619 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); | |
79072805 LW |
1620 | #else |
1621 | if (egid == gid) /* special case $) = $( */ | |
1622 | (void)setgid(egid); | |
748a9306 LW |
1623 | else { |
1624 | egid = (I32)getegid(); | |
463ee0b2 | 1625 | croak("setegid() not implemented"); |
748a9306 | 1626 | } |
79072805 LW |
1627 | #endif |
1628 | #endif | |
85e6fe83 | 1629 | #endif |
79072805 | 1630 | egid = (I32)getegid(); |
4633a7c4 | 1631 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1632 | break; |
1633 | case ':': | |
a0d0e21e | 1634 | chopset = SvPV_force(sv,na); |
79072805 LW |
1635 | break; |
1636 | case '0': | |
1637 | if (!origalen) { | |
1638 | s = origargv[0]; | |
1639 | s += strlen(s); | |
1640 | /* See if all the arguments are contiguous in memory */ | |
1641 | for (i = 1; i < origargc; i++) { | |
fb73857a | 1642 | if (origargv[i] == s + 1 |
1643 | #ifdef OS2 | |
1644 | || origargv[i] == s + 2 | |
1645 | #endif | |
1646 | ) | |
79072805 | 1647 | s += strlen(++s); /* this one is ok too */ |
fb73857a | 1648 | else |
1649 | break; | |
79072805 | 1650 | } |
bbce6d69 | 1651 | /* can grab env area too? */ |
fb73857a | 1652 | if (origenviron && (origenviron[0] == s + 1 |
1653 | #ifdef OS2 | |
1654 | || (origenviron[0] == s + 9 && (s += 8)) | |
1655 | #endif | |
1656 | )) { | |
66b1d557 | 1657 | my_setenv("NoNe SuCh", Nullch); |
79072805 LW |
1658 | /* force copy of environment */ |
1659 | for (i = 0; origenviron[i]; i++) | |
1660 | if (origenviron[i] == s + 1) | |
1661 | s += strlen(++s); | |
fb73857a | 1662 | else |
1663 | break; | |
79072805 LW |
1664 | } |
1665 | origalen = s - origargv[0]; | |
1666 | } | |
a0d0e21e | 1667 | s = SvPV_force(sv,len); |
8990e307 | 1668 | i = len; |
79072805 LW |
1669 | if (i >= origalen) { |
1670 | i = origalen; | |
fb73857a | 1671 | /* don't allow system to limit $0 seen by script */ |
1672 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
79072805 | 1673 | Copy(s, origargv[0], i, char); |
fb73857a | 1674 | s = origargv[0]+i; |
1675 | *s = '\0'; | |
79072805 LW |
1676 | } |
1677 | else { | |
1678 | Copy(s, origargv[0], i, char); | |
1679 | s = origargv[0]+i; | |
1680 | *s++ = '\0'; | |
1681 | while (++i < origalen) | |
8990e307 LW |
1682 | *s++ = ' '; |
1683 | s = origargv[0]+i; | |
ed6116ce | 1684 | for (i = 1; i < origargc; i++) |
8990e307 | 1685 | origargv[i] = Nullch; |
79072805 LW |
1686 | } |
1687 | break; | |
a863c7d1 MB |
1688 | #ifdef USE_THREADS |
1689 | case '@': | |
38a03e6e | 1690 | sv_setsv(thr->errsv, sv); |
a863c7d1 MB |
1691 | break; |
1692 | #endif /* USE_THREADS */ | |
79072805 LW |
1693 | } |
1694 | return 0; | |
1695 | } | |
1696 | ||
f93b4edd MB |
1697 | #ifdef USE_THREADS |
1698 | int | |
8ac85365 | 1699 | magic_mutexfree(SV *sv, MAGIC *mg) |
f93b4edd MB |
1700 | { |
1701 | dTHR; | |
bc1f4c86 MB |
1702 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
1703 | (unsigned long)thr, (unsigned long)sv);) | |
f93b4edd MB |
1704 | if (MgOWNER(mg)) |
1705 | croak("panic: magic_mutexfree"); | |
1706 | MUTEX_DESTROY(MgMUTEXP(mg)); | |
1707 | COND_DESTROY(MgCONDP(mg)); | |
e55aaa0e | 1708 | SvREFCNT_dec(sv); |
f93b4edd MB |
1709 | return 0; |
1710 | } | |
1711 | #endif /* USE_THREADS */ | |
1712 | ||
79072805 | 1713 | I32 |
8ac85365 | 1714 | whichsig(char *sig) |
79072805 LW |
1715 | { |
1716 | register char **sigv; | |
1717 | ||
1718 | for (sigv = sig_name+1; *sigv; sigv++) | |
1719 | if (strEQ(sig,*sigv)) | |
8e07c86e | 1720 | return sig_num[sigv - sig_name]; |
79072805 LW |
1721 | #ifdef SIGCLD |
1722 | if (strEQ(sig,"CHLD")) | |
1723 | return SIGCLD; | |
1724 | #endif | |
1725 | #ifdef SIGCHLD | |
1726 | if (strEQ(sig,"CLD")) | |
1727 | return SIGCHLD; | |
1728 | #endif | |
1729 | return 0; | |
1730 | } | |
1731 | ||
84902520 TB |
1732 | static SV* sig_sv; |
1733 | ||
1734 | static void | |
8ac85365 | 1735 | unwind_handler_stack(void *p) |
84902520 | 1736 | { |
ff26ac79 | 1737 | dTHR; |
84902520 TB |
1738 | U32 flags = *(U32*)p; |
1739 | ||
1740 | if (flags & 1) | |
1741 | savestack_ix -= 5; /* Unprotect save in progress. */ | |
1742 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
1743 | if (flags & 64) | |
1744 | SvREFCNT_dec(sig_sv); | |
1745 | } | |
1746 | ||
ecfc5424 | 1747 | Signal_t |
8ac85365 | 1748 | sighandler(int sig) |
79072805 LW |
1749 | { |
1750 | dSP; | |
00d579c5 | 1751 | GV *gv = Nullgv; |
a0d0e21e | 1752 | HV *st; |
84902520 | 1753 | SV *sv, *tSv = Sv; |
00d579c5 | 1754 | CV *cv = Nullcv; |
79072805 | 1755 | AV *oldstack; |
84902520 TB |
1756 | OP *myop = op; |
1757 | U32 flags = 0; | |
1758 | I32 o_save_i = savestack_ix, type; | |
c09156bb | 1759 | PERL_CONTEXT *cx; |
84902520 TB |
1760 | XPV *tXpv = Xpv; |
1761 | ||
1762 | if (savestack_ix + 15 <= savestack_max) | |
1763 | flags |= 1; | |
1764 | if (cxstack_ix < cxstack_max - 2) | |
1765 | flags |= 2; | |
1766 | if (markstack_ptr < markstack_max - 2) | |
1767 | flags |= 4; | |
1768 | if (retstack_ix < retstack_max - 2) | |
1769 | flags |= 8; | |
1770 | if (scopestack_ix < scopestack_max - 3) | |
1771 | flags |= 16; | |
1772 | ||
1773 | if (flags & 2) { /* POPBLOCK may decrease cxstack too early. */ | |
1774 | cxstack_ix++; /* Protect from overwrite. */ | |
1775 | cx = &cxstack[cxstack_ix]; | |
1776 | type = cx->cx_type; /* Can be during partial write. */ | |
1777 | cx->cx_type = CXt_NULL; /* Make it safe for unwind. */ | |
1778 | } | |
ff0cee69 | 1779 | if (!psig_ptr[sig]) |
1780 | die("Signal SIG%s received, but no signal handler set.\n", | |
1781 | sig_name[sig]); | |
1782 | ||
84902520 TB |
1783 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
1784 | infinity, so we fix 4 (in fact 5): */ | |
1785 | if (flags & 1) { | |
1786 | savestack_ix += 5; /* Protect save in progress. */ | |
1787 | o_save_i = savestack_ix; | |
1788 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); | |
1789 | } | |
1790 | if (flags & 4) | |
1791 | markstack_ptr++; /* Protect mark. */ | |
1792 | if (flags & 8) { | |
1793 | retstack_ix++; | |
1794 | retstack[retstack_ix] = NULL; | |
1795 | } | |
1796 | if (flags & 16) | |
1797 | scopestack_ix += 1; | |
1798 | /* sv_2cv is too complicated, try a simpler variant first: */ | |
1799 | if (!SvROK(psig_ptr[sig]) || !(cv = (CV*)SvRV(psig_ptr[sig])) | |
1800 | || SvTYPE(cv) != SVt_PVCV) | |
1801 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); | |
1802 | ||
a0d0e21e | 1803 | if (!cv || !CvROOT(cv)) { |
79072805 LW |
1804 | if (dowarn) |
1805 | warn("SIG%s handler \"%s\" not defined.\n", | |
00d579c5 GS |
1806 | sig_name[sig], (gv ? GvENAME(gv) |
1807 | : ((cv && CvGV(cv)) | |
1808 | ? GvENAME(CvGV(cv)) | |
1809 | : "__ANON__"))); | |
1810 | goto cleanup; | |
79072805 LW |
1811 | } |
1812 | ||
88e89b8a | 1813 | oldstack = curstack; |
1814 | if (curstack != signalstack) | |
a0d0e21e | 1815 | AvFILL(signalstack) = 0; |
88e89b8a | 1816 | SWITCHSTACK(curstack, signalstack); |
79072805 | 1817 | |
84902520 | 1818 | if(psig_name[sig]) { |
88e89b8a | 1819 | sv = SvREFCNT_inc(psig_name[sig]); |
84902520 TB |
1820 | flags |= 64; |
1821 | sig_sv = sv; | |
1822 | } else { | |
ff0cee69 | 1823 | sv = sv_newmortal(); |
1824 | sv_setpv(sv,sig_name[sig]); | |
88e89b8a | 1825 | } |
a0d0e21e | 1826 | PUSHMARK(sp); |
79072805 | 1827 | PUSHs(sv); |
79072805 | 1828 | PUTBACK; |
a0d0e21e LW |
1829 | |
1830 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 LW |
1831 | |
1832 | SWITCHSTACK(signalstack, oldstack); | |
00d579c5 | 1833 | cleanup: |
84902520 TB |
1834 | if (flags & 1) |
1835 | savestack_ix -= 8; /* Unprotect save in progress. */ | |
1836 | if (flags & 2) { | |
1837 | cxstack[cxstack_ix].cx_type = type; | |
1838 | cxstack_ix -= 1; | |
1839 | } | |
1840 | if (flags & 4) | |
1841 | markstack_ptr--; | |
1842 | if (flags & 8) | |
1843 | retstack_ix--; | |
1844 | if (flags & 16) | |
1845 | scopestack_ix -= 1; | |
1846 | if (flags & 64) | |
1847 | SvREFCNT_dec(sv); | |
1848 | op = myop; /* Apparently not needed... */ | |
1849 | ||
1850 | Sv = tSv; /* Restore global temporaries. */ | |
1851 | Xpv = tXpv; | |
79072805 LW |
1852 | return; |
1853 | } | |
4e35701f NIS |
1854 | |
1855 |