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 CS |
41 | static void |
42 | save_magic(mgs, sv) | |
43 | MGS* mgs; | |
c07a80fd | 44 | SV* sv; |
45 | { | |
c07a80fd | 46 | assert(SvMAGICAL(sv)); |
47 | ||
c07a80fd | 48 | mgs->mgs_sv = sv; |
49 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
50 | SAVEDESTRUCTOR(restore_magic, mgs); | |
51 | ||
52 | SvMAGICAL_off(sv); | |
53 | SvREADONLY_off(sv); | |
54 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
c07a80fd | 55 | } |
56 | ||
57 | static void | |
58 | restore_magic(p) | |
59 | void* p; | |
60 | { | |
48e43a1c | 61 | MGS* mgs = (MGS*)p; |
c07a80fd | 62 | SV* sv = mgs->mgs_sv; |
63 | ||
64 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
65 | { | |
66 | if (mgs->mgs_flags) | |
67 | SvFLAGS(sv) |= mgs->mgs_flags; | |
68 | else | |
69 | mg_magical(sv); | |
70 | if (SvGMAGICAL(sv)) | |
71 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
72 | } | |
c07a80fd | 73 | } |
74 | ||
8e07c86e | 75 | |
8990e307 LW |
76 | void |
77 | mg_magical(sv) | |
78 | SV* sv; | |
79 | { | |
80 | MAGIC* mg; | |
81 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
82 | MGVTBL* vtbl = mg->mg_virtual; | |
83 | if (vtbl) { | |
a0d0e21e | 84 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
85 | SvGMAGICAL_on(sv); |
86 | if (vtbl->svt_set) | |
87 | SvSMAGICAL_on(sv); | |
88 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) | |
89 | SvRMAGICAL_on(sv); | |
90 | } | |
91 | } | |
92 | } | |
93 | ||
79072805 LW |
94 | int |
95 | mg_get(sv) | |
96 | SV* sv; | |
97 | { | |
48e43a1c | 98 | MGS mgs; |
79072805 | 99 | MAGIC* mg; |
c6496cc7 | 100 | MAGIC** mgp; |
760ac839 | 101 | int mgp_valid = 0; |
463ee0b2 | 102 | |
c07a80fd | 103 | ENTER; |
48e43a1c | 104 | save_magic(&mgs, sv); |
463ee0b2 | 105 | |
c6496cc7 | 106 | mgp = &SvMAGIC(sv); |
107 | while ((mg = *mgp) != 0) { | |
79072805 | 108 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e | 109 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
79072805 | 110 | (*vtbl->svt_get)(sv, mg); |
c6496cc7 | 111 | /* Ignore this magic if it's been deleted */ |
48e43a1c CS |
112 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
113 | (mg->mg_flags & MGf_GSKIP)) | |
114 | mgs.mgs_flags = 0; | |
a0d0e21e | 115 | } |
c6496cc7 | 116 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 117 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 118 | mgp = &mg->mg_moremagic; |
760ac839 LW |
119 | mgp_valid = 1; |
120 | } | |
121 | else | |
122 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 123 | } |
463ee0b2 | 124 | |
c07a80fd | 125 | LEAVE; |
79072805 LW |
126 | return 0; |
127 | } | |
128 | ||
129 | int | |
130 | mg_set(sv) | |
131 | SV* sv; | |
132 | { | |
48e43a1c | 133 | MGS mgs; |
79072805 | 134 | MAGIC* mg; |
463ee0b2 LW |
135 | MAGIC* nextmg; |
136 | ||
c07a80fd | 137 | ENTER; |
48e43a1c | 138 | save_magic(&mgs, sv); |
463ee0b2 LW |
139 | |
140 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 141 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 142 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
143 | if (mg->mg_flags & MGf_GSKIP) { |
144 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
48e43a1c | 145 | mgs.mgs_flags = 0; |
a0d0e21e | 146 | } |
79072805 LW |
147 | if (vtbl && vtbl->svt_set) |
148 | (*vtbl->svt_set)(sv, mg); | |
149 | } | |
463ee0b2 | 150 | |
c07a80fd | 151 | LEAVE; |
79072805 LW |
152 | return 0; |
153 | } | |
154 | ||
155 | U32 | |
156 | mg_len(sv) | |
157 | SV* sv; | |
158 | { | |
159 | MAGIC* mg; | |
748a9306 | 160 | char *junk; |
463ee0b2 | 161 | STRLEN len; |
463ee0b2 | 162 | |
79072805 LW |
163 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
164 | MGVTBL* vtbl = mg->mg_virtual; | |
85e6fe83 | 165 | if (vtbl && vtbl->svt_len) { |
48e43a1c CS |
166 | MGS mgs; |
167 | ||
c07a80fd | 168 | ENTER; |
48e43a1c | 169 | save_magic(&mgs, sv); |
a0d0e21e | 170 | /* omit MGf_GSKIP -- not changed here */ |
85e6fe83 | 171 | len = (*vtbl->svt_len)(sv, mg); |
c07a80fd | 172 | LEAVE; |
85e6fe83 LW |
173 | return len; |
174 | } | |
175 | } | |
176 | ||
748a9306 | 177 | junk = SvPV(sv, len); |
463ee0b2 | 178 | return len; |
79072805 LW |
179 | } |
180 | ||
181 | int | |
182 | mg_clear(sv) | |
183 | SV* sv; | |
184 | { | |
48e43a1c | 185 | MGS mgs; |
79072805 | 186 | MAGIC* mg; |
463ee0b2 | 187 | |
c07a80fd | 188 | ENTER; |
48e43a1c | 189 | save_magic(&mgs, sv); |
463ee0b2 | 190 | |
79072805 LW |
191 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
192 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
193 | /* omit GSKIP -- never set here */ |
194 | ||
79072805 LW |
195 | if (vtbl && vtbl->svt_clear) |
196 | (*vtbl->svt_clear)(sv, mg); | |
197 | } | |
463ee0b2 | 198 | |
c07a80fd | 199 | LEAVE; |
79072805 LW |
200 | return 0; |
201 | } | |
202 | ||
93a17b20 LW |
203 | MAGIC* |
204 | mg_find(sv, type) | |
205 | SV* sv; | |
a0d0e21e | 206 | int type; |
93a17b20 LW |
207 | { |
208 | MAGIC* mg; | |
93a17b20 LW |
209 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
210 | if (mg->mg_type == type) | |
211 | return mg; | |
212 | } | |
213 | return 0; | |
214 | } | |
215 | ||
79072805 | 216 | int |
463ee0b2 | 217 | mg_copy(sv, nsv, key, klen) |
79072805 | 218 | SV* sv; |
463ee0b2 LW |
219 | SV* nsv; |
220 | char *key; | |
88e89b8a | 221 | I32 klen; |
79072805 | 222 | { |
463ee0b2 | 223 | int count = 0; |
79072805 | 224 | MAGIC* mg; |
463ee0b2 LW |
225 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
226 | if (isUPPER(mg->mg_type)) { | |
a0d0e21e | 227 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 228 | count++; |
79072805 | 229 | } |
79072805 | 230 | } |
463ee0b2 | 231 | return count; |
79072805 LW |
232 | } |
233 | ||
234 | int | |
463ee0b2 | 235 | mg_free(sv) |
79072805 LW |
236 | SV* sv; |
237 | { | |
238 | MAGIC* mg; | |
239 | MAGIC* moremagic; | |
240 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
241 | MGVTBL* vtbl = mg->mg_virtual; | |
242 | moremagic = mg->mg_moremagic; | |
243 | if (vtbl && vtbl->svt_free) | |
244 | (*vtbl->svt_free)(sv, mg); | |
93a17b20 | 245 | if (mg->mg_ptr && mg->mg_type != 'g') |
88e89b8a | 246 | if (mg->mg_len >= 0) |
247 | Safefree(mg->mg_ptr); | |
248 | else if (mg->mg_len == HEf_SVKEY) | |
249 | SvREFCNT_dec((SV*)mg->mg_ptr); | |
85e6fe83 | 250 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 251 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
252 | Safefree(mg); |
253 | } | |
254 | SvMAGIC(sv) = 0; | |
255 | return 0; | |
256 | } | |
257 | ||
258 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
259 | #include <signal.h> | |
260 | #endif | |
261 | ||
93a17b20 LW |
262 | U32 |
263 | magic_len(sv, mg) | |
264 | SV *sv; | |
265 | MAGIC *mg; | |
266 | { | |
267 | register I32 paren; | |
268 | register char *s; | |
269 | register I32 i; | |
bbce6d69 | 270 | register REGEXP *rx; |
748a9306 | 271 | char *t; |
93a17b20 LW |
272 | |
273 | switch (*mg->mg_ptr) { | |
274 | case '1': case '2': case '3': case '4': | |
275 | case '5': case '6': case '7': case '8': case '9': case '&': | |
bbce6d69 | 276 | if (curpm && (rx = curpm->op_pmregexp)) { |
93a17b20 LW |
277 | paren = atoi(mg->mg_ptr); |
278 | getparen: | |
bbce6d69 | 279 | if (paren <= rx->nparens && |
280 | (s = rx->startp[paren]) && | |
281 | (t = rx->endp[paren])) | |
282 | { | |
748a9306 | 283 | i = t - 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)) { |
291 | paren = rx->lastparen; | |
13f57bf8 CS |
292 | if (paren) |
293 | goto getparen; | |
93a17b20 | 294 | } |
748a9306 | 295 | return 0; |
93a17b20 | 296 | case '`': |
bbce6d69 | 297 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 | 298 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 | 299 | i = rx->startp[0] - s; |
71be2cbc | 300 | if (i >= 0) |
93a17b20 | 301 | return i; |
93a17b20 | 302 | } |
93a17b20 | 303 | } |
748a9306 | 304 | return 0; |
93a17b20 | 305 | case '\'': |
bbce6d69 | 306 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 CS |
307 | if (rx->subend && (s = rx->endp[0])) { |
308 | i = rx->subend - s; | |
309 | if (i >= 0) | |
5cd24f17 | 310 | return i; |
93a17b20 | 311 | } |
93a17b20 | 312 | } |
748a9306 | 313 | return 0; |
93a17b20 LW |
314 | case ',': |
315 | return (STRLEN)ofslen; | |
316 | case '\\': | |
317 | return (STRLEN)orslen; | |
318 | } | |
319 | magic_get(sv,mg); | |
320 | if (!SvPOK(sv) && SvNIOK(sv)) | |
463ee0b2 | 321 | sv_2pv(sv, &na); |
93a17b20 LW |
322 | if (SvPOK(sv)) |
323 | return SvCUR(sv); | |
324 | return 0; | |
325 | } | |
326 | ||
79072805 LW |
327 | int |
328 | magic_get(sv, mg) | |
329 | SV *sv; | |
330 | MAGIC *mg; | |
331 | { | |
332 | register I32 paren; | |
333 | register char *s; | |
334 | register I32 i; | |
bbce6d69 | 335 | register REGEXP *rx; |
748a9306 | 336 | char *t; |
79072805 LW |
337 | |
338 | switch (*mg->mg_ptr) { | |
748a9306 LW |
339 | case '\001': /* ^A */ |
340 | sv_setsv(sv, bodytarget); | |
341 | break; | |
79072805 | 342 | case '\004': /* ^D */ |
188ea221 | 343 | sv_setiv(sv, (IV)(debug & 32767)); |
79072805 | 344 | break; |
28f23441 | 345 | case '\005': /* ^E */ |
346 | #ifdef VMS | |
347 | { | |
348 | # include <descrip.h> | |
349 | # include <starlet.h> | |
350 | char msg[255]; | |
351 | $DESCRIPTOR(msgdsc,msg); | |
946ec16e | 352 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 | 353 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
354 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
355 | else | |
356 | sv_setpv(sv,""); | |
357 | } | |
358 | #else | |
88e89b8a | 359 | #ifdef OS2 |
fb73857a | 360 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
361 | sv_setnv(sv, (double)errno); | |
362 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
363 | } else { | |
364 | if (errno != errno_isOS2) | |
365 | Perl_rc = _syserrno(); | |
366 | sv_setnv(sv, (double)Perl_rc); | |
367 | sv_setpv(sv, os2error(Perl_rc)); | |
368 | } | |
88e89b8a | 369 | #else |
946ec16e | 370 | sv_setnv(sv, (double)errno); |
28f23441 | 371 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
372 | #endif | |
88e89b8a | 373 | #endif |
946ec16e | 374 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 375 | break; |
79072805 | 376 | case '\006': /* ^F */ |
188ea221 | 377 | sv_setiv(sv, (IV)maxsysfd); |
79072805 | 378 | break; |
a0d0e21e | 379 | case '\010': /* ^H */ |
188ea221 | 380 | sv_setiv(sv, (IV)hints); |
a0d0e21e | 381 | break; |
79072805 LW |
382 | case '\t': /* ^I */ |
383 | if (inplace) | |
384 | sv_setpv(sv, inplace); | |
385 | else | |
188ea221 | 386 | sv_setsv(sv, &sv_undef); |
79072805 | 387 | break; |
28f23441 | 388 | case '\017': /* ^O */ |
188ea221 | 389 | sv_setpv(sv, osname); |
28f23441 | 390 | break; |
79072805 | 391 | case '\020': /* ^P */ |
188ea221 | 392 | sv_setiv(sv, (IV)perldb); |
79072805 | 393 | break; |
fb73857a | 394 | case '\023': /* ^S */ |
d58bf5aa MB |
395 | { |
396 | dTHR; | |
397 | if (lex_state != LEX_NOTPARSING) | |
398 | SvOK_off(sv); | |
399 | else if (in_eval) | |
400 | sv_setiv(sv, 1); | |
401 | else | |
402 | sv_setiv(sv, 0); | |
403 | } | |
fb73857a | 404 | break; |
79072805 | 405 | case '\024': /* ^T */ |
88e89b8a | 406 | #ifdef BIG_TIME |
188ea221 | 407 | sv_setnv(sv, basetime); |
88e89b8a | 408 | #else |
188ea221 | 409 | sv_setiv(sv, (IV)basetime); |
88e89b8a | 410 | #endif |
79072805 LW |
411 | break; |
412 | case '\027': /* ^W */ | |
188ea221 | 413 | sv_setiv(sv, (IV)dowarn); |
79072805 LW |
414 | break; |
415 | case '1': case '2': case '3': case '4': | |
416 | case '5': case '6': case '7': case '8': case '9': case '&': | |
bbce6d69 | 417 | if (curpm && (rx = curpm->op_pmregexp)) { |
88e89b8a | 418 | paren = atoi(GvENAME((GV*)mg->mg_obj)); |
79072805 | 419 | getparen: |
bbce6d69 | 420 | if (paren <= rx->nparens && |
421 | (s = rx->startp[paren]) && | |
422 | (t = rx->endp[paren])) | |
423 | { | |
748a9306 | 424 | i = t - s; |
13f57bf8 | 425 | getrx: |
748a9306 | 426 | if (i >= 0) { |
13f57bf8 CS |
427 | bool was_tainted; |
428 | if (tainting) { | |
429 | was_tainted = tainted; | |
430 | tainted = FALSE; | |
431 | } | |
79072805 | 432 | sv_setpvn(sv,s,i); |
13f57bf8 CS |
433 | if (tainting) |
434 | tainted = was_tainted || rx->exec_tainted; | |
748a9306 LW |
435 | break; |
436 | } | |
79072805 | 437 | } |
79072805 | 438 | } |
748a9306 | 439 | sv_setsv(sv,&sv_undef); |
79072805 LW |
440 | break; |
441 | case '+': | |
bbce6d69 | 442 | if (curpm && (rx = curpm->op_pmregexp)) { |
443 | paren = rx->lastparen; | |
a0d0e21e LW |
444 | if (paren) |
445 | goto getparen; | |
79072805 | 446 | } |
748a9306 | 447 | sv_setsv(sv,&sv_undef); |
79072805 LW |
448 | break; |
449 | case '`': | |
bbce6d69 | 450 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 | 451 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 | 452 | i = rx->startp[0] - s; |
13f57bf8 | 453 | goto getrx; |
79072805 | 454 | } |
79072805 | 455 | } |
748a9306 | 456 | sv_setsv(sv,&sv_undef); |
79072805 LW |
457 | break; |
458 | case '\'': | |
bbce6d69 | 459 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 CS |
460 | if (rx->subend && (s = rx->endp[0])) { |
461 | i = rx->subend - s; | |
462 | goto getrx; | |
79072805 | 463 | } |
79072805 | 464 | } |
748a9306 | 465 | sv_setsv(sv,&sv_undef); |
79072805 LW |
466 | break; |
467 | case '.': | |
468 | #ifndef lint | |
a0d0e21e | 469 | if (GvIO(last_in_gv)) { |
188ea221 | 470 | sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv))); |
79072805 LW |
471 | } |
472 | #endif | |
473 | break; | |
474 | case '?': | |
809a5acc MB |
475 | { |
476 | dTHR; | |
477 | sv_setiv(sv, (IV)STATUS_CURRENT); | |
ff0cee69 | 478 | #ifdef COMPLEX_STATUS |
809a5acc MB |
479 | LvTARGOFF(sv) = statusvalue; |
480 | LvTARGLEN(sv) = statusvalue_vms; | |
ff0cee69 | 481 | #endif |
809a5acc | 482 | } |
79072805 LW |
483 | break; |
484 | case '^': | |
a0d0e21e | 485 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 LW |
486 | if (s) |
487 | sv_setpv(sv,s); | |
488 | else { | |
489 | sv_setpv(sv,GvENAME(defoutgv)); | |
490 | sv_catpv(sv,"_TOP"); | |
491 | } | |
492 | break; | |
493 | case '~': | |
a0d0e21e | 494 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 LW |
495 | if (!s) |
496 | s = GvENAME(defoutgv); | |
497 | sv_setpv(sv,s); | |
498 | break; | |
499 | #ifndef lint | |
500 | case '=': | |
188ea221 | 501 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 LW |
502 | break; |
503 | case '-': | |
188ea221 | 504 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 LW |
505 | break; |
506 | case '%': | |
188ea221 | 507 | sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv))); |
79072805 LW |
508 | break; |
509 | #endif | |
510 | case ':': | |
511 | break; | |
512 | case '/': | |
513 | break; | |
514 | case '[': | |
0f15f207 | 515 | WITH_THR(sv_setiv(sv, (IV)curcop->cop_arybase)); |
79072805 LW |
516 | break; |
517 | case '|': | |
188ea221 | 518 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
519 | break; |
520 | case ',': | |
521 | sv_setpvn(sv,ofs,ofslen); | |
522 | break; | |
523 | case '\\': | |
524 | sv_setpvn(sv,ors,orslen); | |
525 | break; | |
526 | case '#': | |
527 | sv_setpv(sv,ofmt); | |
528 | break; | |
529 | case '!': | |
a5f75d66 | 530 | #ifdef VMS |
946ec16e | 531 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 532 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 533 | #else |
88e89b8a | 534 | { |
535 | int saveerrno = errno; | |
946ec16e | 536 | sv_setnv(sv, (double)errno); |
88e89b8a | 537 | #ifdef OS2 |
538 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
539 | else | |
a5f75d66 | 540 | #endif |
2304df62 | 541 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 542 | errno = saveerrno; |
543 | } | |
544 | #endif | |
946ec16e | 545 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
546 | break; |
547 | case '<': | |
188ea221 | 548 | sv_setiv(sv, (IV)uid); |
79072805 LW |
549 | break; |
550 | case '>': | |
188ea221 | 551 | sv_setiv(sv, (IV)euid); |
79072805 LW |
552 | break; |
553 | case '(': | |
188ea221 | 554 | sv_setiv(sv, (IV)gid); |
fc36a67e | 555 | sv_setpvf(sv, "%Vd", (IV)gid); |
79072805 LW |
556 | goto add_groups; |
557 | case ')': | |
188ea221 | 558 | sv_setiv(sv, (IV)egid); |
fc36a67e | 559 | sv_setpvf(sv, "%Vd", (IV)egid); |
79072805 | 560 | add_groups: |
79072805 | 561 | #ifdef HAS_GETGROUPS |
79072805 | 562 | { |
a0d0e21e | 563 | Groups_t gary[NGROUPS]; |
79072805 | 564 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 565 | while (--i >= 0) |
fc36a67e | 566 | sv_catpvf(sv, " %Vd", (IV)gary[i]); |
79072805 LW |
567 | } |
568 | #endif | |
29355cf7 | 569 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
570 | break; |
571 | case '*': | |
572 | break; | |
573 | case '0': | |
574 | break; | |
575 | } | |
a0d0e21e | 576 | return 0; |
79072805 LW |
577 | } |
578 | ||
579 | int | |
580 | magic_getuvar(sv, mg) | |
581 | SV *sv; | |
582 | MAGIC *mg; | |
583 | { | |
584 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
585 | ||
586 | if (uf && uf->uf_val) | |
587 | (*uf->uf_val)(uf->uf_index, sv); | |
588 | return 0; | |
589 | } | |
590 | ||
591 | int | |
592 | magic_setenv(sv,mg) | |
593 | SV* sv; | |
594 | MAGIC* mg; | |
595 | { | |
596 | register char *s; | |
88e89b8a | 597 | char *ptr; |
5aabfad6 | 598 | STRLEN len, klen; |
a0d0e21e | 599 | I32 i; |
1e422769 | 600 | |
a0d0e21e | 601 | s = SvPV(sv,len); |
5aabfad6 | 602 | ptr = MgPV(mg,klen); |
88e89b8a | 603 | my_setenv(ptr, s); |
1e422769 | 604 | |
a0d0e21e LW |
605 | #ifdef DYNAMIC_ENV_FETCH |
606 | /* We just undefd an environment var. Is a replacement */ | |
607 | /* waiting in the wings? */ | |
608 | if (!len) { | |
5aabfad6 | 609 | SV **valp; |
610 | if ((valp = hv_fetch(GvHVn(envgv), ptr, klen, FALSE))) | |
611 | s = SvPV(*valp, len); | |
a0d0e21e LW |
612 | } |
613 | #endif | |
1e422769 | 614 | |
3e3baf6d | 615 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) |
79072805 LW |
616 | /* And you'll never guess what the dog had */ |
617 | /* in its mouth... */ | |
463ee0b2 | 618 | if (tainting) { |
1e422769 | 619 | MgTAINTEDDIR_off(mg); |
620 | #ifdef VMS | |
5aabfad6 | 621 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 622 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
623 | struct stat sbuf; | |
624 | int i = 0, j = 0; | |
625 | ||
626 | do { /* DCL$PATH may be a search list */ | |
627 | while (1) { /* as may dev portion of any element */ | |
628 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
629 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
630 | cando_by_name(S_IWUSR,0,elt) ) { | |
631 | MgTAINTEDDIR_on(mg); | |
632 | return 0; | |
633 | } | |
634 | } | |
635 | if ((cp = strchr(elt, ':')) != Nullch) | |
636 | *cp = '\0'; | |
637 | if (my_trnlnm(elt, eltbuf, j++)) | |
638 | elt = eltbuf; | |
639 | else | |
640 | break; | |
641 | } | |
642 | j = 0; | |
643 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
644 | } | |
645 | #endif /* VMS */ | |
5aabfad6 | 646 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 647 | char *strend = s + len; |
463ee0b2 LW |
648 | |
649 | while (s < strend) { | |
96827780 | 650 | char tmpbuf[256]; |
1e422769 | 651 | struct stat st; |
96827780 | 652 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 653 | s, strend, ':', &i); |
463ee0b2 | 654 | s++; |
96827780 MB |
655 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
656 | || *tmpbuf != '/' | |
657 | || (Stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { | |
8990e307 | 658 | MgTAINTEDDIR_on(mg); |
1e422769 | 659 | return 0; |
660 | } | |
463ee0b2 | 661 | } |
79072805 LW |
662 | } |
663 | } | |
3e3baf6d | 664 | #endif /* neither OS2 nor AMIGAOS nor WIN32 */ |
1e422769 | 665 | |
79072805 LW |
666 | return 0; |
667 | } | |
668 | ||
669 | int | |
85e6fe83 LW |
670 | magic_clearenv(sv,mg) |
671 | SV* sv; | |
672 | MAGIC* mg; | |
673 | { | |
5aabfad6 | 674 | my_setenv(MgPV(mg,na),Nullch); |
85e6fe83 LW |
675 | return 0; |
676 | } | |
677 | ||
88e89b8a | 678 | int |
fb73857a | 679 | magic_set_all_env(sv,mg) |
680 | SV* sv; | |
681 | MAGIC* mg; | |
682 | { | |
683 | #if defined(VMS) | |
684 | die("Can't make list assignment to %%ENV on this system"); | |
685 | #else | |
d58bf5aa | 686 | dTHR; |
fb73857a | 687 | if (localizing) { |
688 | HE* entry; | |
689 | magic_clear_all_env(sv,mg); | |
690 | hv_iterinit((HV*)sv); | |
691 | while (entry = hv_iternext((HV*)sv)) { | |
692 | I32 keylen; | |
693 | my_setenv(hv_iterkey(entry, &keylen), | |
694 | SvPV(hv_iterval((HV*)sv, entry), na)); | |
695 | } | |
696 | } | |
697 | #endif | |
698 | return 0; | |
699 | } | |
700 | ||
701 | int | |
3e3baf6d TB |
702 | magic_clear_all_env(sv,mg) |
703 | SV* sv; | |
704 | MAGIC* mg; | |
66b1d557 | 705 | { |
3e3baf6d TB |
706 | #if defined(VMS) |
707 | die("Can't make list assignment to %%ENV on this system"); | |
708 | #else | |
709 | #ifdef WIN32 | |
710 | char *envv = GetEnvironmentStrings(); | |
711 | char *cur = envv; | |
712 | STRLEN len; | |
713 | while (*cur) { | |
714 | char *end = strchr(cur,'='); | |
715 | if (end && end != cur) { | |
716 | *end = '\0'; | |
717 | my_setenv(cur,Nullch); | |
718 | *end = '='; | |
719 | cur += strlen(end+1)+1; | |
720 | } | |
721 | else if ((len = strlen(cur))) | |
722 | cur += len+1; | |
723 | } | |
724 | FreeEnvironmentStrings(envv); | |
66b1d557 HM |
725 | #else |
726 | I32 i; | |
727 | ||
728 | if (environ == origenviron) | |
729 | New(901, environ, 1, char*); | |
730 | else | |
731 | for (i = 0; environ[i]; i++) | |
732 | Safefree(environ[i]); | |
733 | environ[0] = Nullch; | |
734 | ||
66b1d557 | 735 | #endif |
3e3baf6d TB |
736 | #endif |
737 | return 0; | |
66b1d557 HM |
738 | } |
739 | ||
740 | int | |
88e89b8a | 741 | magic_getsig(sv,mg) |
742 | SV* sv; | |
743 | MAGIC* mg; | |
744 | { | |
745 | I32 i; | |
746 | /* Are we fetching a signal entry? */ | |
5aabfad6 | 747 | i = whichsig(MgPV(mg,na)); |
88e89b8a | 748 | if (i) { |
749 | if(psig_ptr[i]) | |
750 | sv_setsv(sv,psig_ptr[i]); | |
751 | else { | |
e858de61 | 752 | dTHR; /* just for SvREFCNT_inc */ |
ff68c719 | 753 | Sighandler_t sigstate = rsignal_state(i); |
754 | ||
88e89b8a | 755 | /* cache state so we don't fetch it again */ |
ff68c719 | 756 | if(sigstate == SIG_IGN) |
88e89b8a | 757 | sv_setpv(sv,"IGNORE"); |
758 | else | |
759 | sv_setsv(sv,&sv_undef); | |
760 | psig_ptr[i] = SvREFCNT_inc(sv); | |
761 | SvTEMP_off(sv); | |
762 | } | |
763 | } | |
764 | return 0; | |
765 | } | |
766 | int | |
767 | magic_clearsig(sv,mg) | |
768 | SV* sv; | |
769 | MAGIC* mg; | |
770 | { | |
771 | I32 i; | |
772 | /* Are we clearing a signal entry? */ | |
5aabfad6 | 773 | i = whichsig(MgPV(mg,na)); |
88e89b8a | 774 | if (i) { |
775 | if(psig_ptr[i]) { | |
776 | SvREFCNT_dec(psig_ptr[i]); | |
777 | psig_ptr[i]=0; | |
778 | } | |
779 | if(psig_name[i]) { | |
780 | SvREFCNT_dec(psig_name[i]); | |
781 | psig_name[i]=0; | |
782 | } | |
783 | } | |
784 | return 0; | |
785 | } | |
3d37d572 | 786 | |
85e6fe83 | 787 | int |
79072805 LW |
788 | magic_setsig(sv,mg) |
789 | SV* sv; | |
790 | MAGIC* mg; | |
791 | { | |
11343788 | 792 | dTHR; |
79072805 LW |
793 | register char *s; |
794 | I32 i; | |
748a9306 | 795 | SV** svp; |
a0d0e21e | 796 | |
5aabfad6 | 797 | s = MgPV(mg,na); |
748a9306 LW |
798 | if (*s == '_') { |
799 | if (strEQ(s,"__DIE__")) | |
800 | svp = &diehook; | |
801 | else if (strEQ(s,"__WARN__")) | |
802 | svp = &warnhook; | |
803 | else if (strEQ(s,"__PARSE__")) | |
804 | svp = &parsehook; | |
805 | else | |
806 | croak("No such hook: %s", s); | |
807 | i = 0; | |
4633a7c4 LW |
808 | if (*svp) { |
809 | SvREFCNT_dec(*svp); | |
810 | *svp = 0; | |
811 | } | |
748a9306 LW |
812 | } |
813 | else { | |
814 | i = whichsig(s); /* ...no, a brick */ | |
815 | if (!i) { | |
816 | if (dowarn || strEQ(s,"ALARM")) | |
817 | warn("No such signal: SIG%s", s); | |
818 | return 0; | |
819 | } | |
ff0cee69 | 820 | SvREFCNT_dec(psig_name[i]); |
821 | SvREFCNT_dec(psig_ptr[i]); | |
88e89b8a | 822 | psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 823 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
ff0cee69 | 824 | psig_name[i] = newSVpv(s, strlen(s)); |
88e89b8a | 825 | SvREADONLY_on(psig_name[i]); |
748a9306 | 826 | } |
a0d0e21e | 827 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 828 | if (i) |
c23142e2 | 829 | (void)rsignal(i, sighandlerp); |
748a9306 LW |
830 | else |
831 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
832 | return 0; |
833 | } | |
834 | s = SvPV_force(sv,na); | |
748a9306 LW |
835 | if (strEQ(s,"IGNORE")) { |
836 | if (i) | |
ff68c719 | 837 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
838 | else |
839 | *svp = 0; | |
840 | } | |
841 | else if (strEQ(s,"DEFAULT") || !*s) { | |
842 | if (i) | |
ff68c719 | 843 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
844 | else |
845 | *svp = 0; | |
846 | } | |
79072805 | 847 | else { |
5aabfad6 | 848 | /* |
849 | * We should warn if HINT_STRICT_REFS, but without | |
850 | * access to a known hint bit in a known OP, we can't | |
851 | * tell whether HINT_STRICT_REFS is in force or not. | |
852 | */ | |
46fc3d4c | 853 | if (!strchr(s,':') && !strchr(s,'\'')) |
854 | sv_setpv(sv, form("main::%s", s)); | |
748a9306 | 855 | if (i) |
c23142e2 | 856 | (void)rsignal(i, sighandlerp); |
748a9306 LW |
857 | else |
858 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
859 | } |
860 | return 0; | |
861 | } | |
862 | ||
863 | int | |
463ee0b2 | 864 | magic_setisa(sv,mg) |
79072805 LW |
865 | SV* sv; |
866 | MAGIC* mg; | |
867 | { | |
463ee0b2 LW |
868 | sub_generation++; |
869 | return 0; | |
870 | } | |
871 | ||
a0d0e21e LW |
872 | #ifdef OVERLOAD |
873 | ||
463ee0b2 | 874 | int |
a0d0e21e | 875 | magic_setamagic(sv,mg) |
463ee0b2 LW |
876 | SV* sv; |
877 | MAGIC* mg; | |
878 | { | |
a0d0e21e LW |
879 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
880 | amagic_generation++; | |
463ee0b2 | 881 | |
a0d0e21e LW |
882 | return 0; |
883 | } | |
884 | #endif /* OVERLOAD */ | |
463ee0b2 | 885 | |
946ec16e | 886 | int |
887 | magic_setnkeys(sv,mg) | |
888 | SV* sv; | |
889 | MAGIC* mg; | |
890 | { | |
891 | if (LvTARG(sv)) { | |
892 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
893 | LvTARG(sv) = Nullsv; /* Don't allow a ref to reassign this. */ | |
894 | } | |
895 | return 0; | |
896 | } | |
897 | ||
a0d0e21e LW |
898 | static int |
899 | magic_methpack(sv,mg,meth) | |
900 | SV* sv; | |
901 | MAGIC* mg; | |
902 | char *meth; | |
903 | { | |
11343788 | 904 | dTHR; |
a0d0e21e | 905 | dSP; |
463ee0b2 | 906 | |
a0d0e21e LW |
907 | ENTER; |
908 | SAVETMPS; | |
909 | PUSHMARK(sp); | |
910 | EXTEND(sp, 2); | |
911 | PUSHs(mg->mg_obj); | |
88e89b8a | 912 | if (mg->mg_ptr) { |
913 | if (mg->mg_len >= 0) | |
914 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
915 | else if (mg->mg_len == HEf_SVKEY) | |
916 | PUSHs((SV*)mg->mg_ptr); | |
917 | } | |
a0d0e21e LW |
918 | else if (mg->mg_type == 'p') |
919 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
920 | PUTBACK; |
921 | ||
a0d0e21e LW |
922 | if (perl_call_method(meth, G_SCALAR)) |
923 | sv_setsv(sv, *stack_sp--); | |
463ee0b2 | 924 | |
a0d0e21e LW |
925 | FREETMPS; |
926 | LEAVE; | |
927 | return 0; | |
928 | } | |
463ee0b2 | 929 | |
a0d0e21e LW |
930 | int |
931 | magic_getpack(sv,mg) | |
932 | SV* sv; | |
933 | MAGIC* mg; | |
934 | { | |
935 | magic_methpack(sv,mg,"FETCH"); | |
936 | if (mg->mg_ptr) | |
937 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
938 | return 0; |
939 | } | |
940 | ||
941 | int | |
942 | magic_setpack(sv,mg) | |
943 | SV* sv; | |
944 | MAGIC* mg; | |
945 | { | |
11343788 | 946 | dTHR; |
463ee0b2 | 947 | dSP; |
463ee0b2 | 948 | |
a0d0e21e LW |
949 | PUSHMARK(sp); |
950 | EXTEND(sp, 3); | |
951 | PUSHs(mg->mg_obj); | |
88e89b8a | 952 | if (mg->mg_ptr) { |
953 | if (mg->mg_len >= 0) | |
954 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
955 | else if (mg->mg_len == HEf_SVKEY) | |
956 | PUSHs((SV*)mg->mg_ptr); | |
957 | } | |
a0d0e21e LW |
958 | else if (mg->mg_type == 'p') |
959 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
960 | PUSHs(sv); |
961 | PUTBACK; | |
962 | ||
a0d0e21e | 963 | perl_call_method("STORE", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
964 | |
965 | return 0; | |
966 | } | |
967 | ||
968 | int | |
969 | magic_clearpack(sv,mg) | |
970 | SV* sv; | |
971 | MAGIC* mg; | |
972 | { | |
a0d0e21e LW |
973 | return magic_methpack(sv,mg,"DELETE"); |
974 | } | |
463ee0b2 | 975 | |
a0d0e21e LW |
976 | int magic_wipepack(sv,mg) |
977 | SV* sv; | |
978 | MAGIC* mg; | |
979 | { | |
11343788 | 980 | dTHR; |
a0d0e21e | 981 | dSP; |
463ee0b2 | 982 | |
a0d0e21e LW |
983 | PUSHMARK(sp); |
984 | XPUSHs(mg->mg_obj); | |
463ee0b2 | 985 | PUTBACK; |
463ee0b2 | 986 | |
a0d0e21e | 987 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
988 | |
989 | return 0; | |
990 | } | |
991 | ||
992 | int | |
993 | magic_nextpack(sv,mg,key) | |
994 | SV* sv; | |
995 | MAGIC* mg; | |
996 | SV* key; | |
997 | { | |
11343788 | 998 | dTHR; |
463ee0b2 | 999 | dSP; |
a0d0e21e | 1000 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1001 | |
1002 | ENTER; | |
a0d0e21e LW |
1003 | SAVETMPS; |
1004 | PUSHMARK(sp); | |
1005 | EXTEND(sp, 2); | |
1006 | PUSHs(mg->mg_obj); | |
463ee0b2 LW |
1007 | if (SvOK(key)) |
1008 | PUSHs(key); | |
1009 | PUTBACK; | |
1010 | ||
a0d0e21e LW |
1011 | if (perl_call_method(meth, G_SCALAR)) |
1012 | sv_setsv(key, *stack_sp--); | |
463ee0b2 | 1013 | |
a0d0e21e LW |
1014 | FREETMPS; |
1015 | LEAVE; | |
79072805 LW |
1016 | return 0; |
1017 | } | |
1018 | ||
1019 | int | |
a0d0e21e LW |
1020 | magic_existspack(sv,mg) |
1021 | SV* sv; | |
1022 | MAGIC* mg; | |
1023 | { | |
1024 | return magic_methpack(sv,mg,"EXISTS"); | |
1025 | } | |
1026 | ||
1027 | int | |
79072805 LW |
1028 | magic_setdbline(sv,mg) |
1029 | SV* sv; | |
1030 | MAGIC* mg; | |
1031 | { | |
11343788 | 1032 | dTHR; |
79072805 LW |
1033 | OP *o; |
1034 | I32 i; | |
1035 | GV* gv; | |
1036 | SV** svp; | |
1037 | ||
1038 | gv = DBline; | |
1039 | i = SvTRUE(sv); | |
188ea221 | 1040 | svp = av_fetch(GvAV(gv), |
5aabfad6 | 1041 | atoi(MgPV(mg,na)), FALSE); |
8990e307 | 1042 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 1043 | o->op_private = i; |
79072805 LW |
1044 | else |
1045 | warn("Can't break at that line\n"); | |
1046 | return 0; | |
1047 | } | |
1048 | ||
1049 | int | |
1050 | magic_getarylen(sv,mg) | |
1051 | SV* sv; | |
1052 | MAGIC* mg; | |
1053 | { | |
0f15f207 | 1054 | dTHR; |
a0d0e21e | 1055 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 LW |
1056 | return 0; |
1057 | } | |
1058 | ||
1059 | int | |
1060 | magic_setarylen(sv,mg) | |
1061 | SV* sv; | |
1062 | MAGIC* mg; | |
1063 | { | |
0f15f207 | 1064 | dTHR; |
a0d0e21e LW |
1065 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
1066 | return 0; | |
1067 | } | |
1068 | ||
1069 | int | |
1070 | magic_getpos(sv,mg) | |
1071 | SV* sv; | |
1072 | MAGIC* mg; | |
1073 | { | |
1074 | SV* lsv = LvTARG(sv); | |
1075 | ||
1076 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1077 | mg = mg_find(lsv, 'g'); | |
1078 | if (mg && mg->mg_len >= 0) { | |
0f15f207 | 1079 | dTHR; |
a0d0e21e LW |
1080 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); |
1081 | return 0; | |
1082 | } | |
1083 | } | |
1084 | (void)SvOK_off(sv); | |
1085 | return 0; | |
1086 | } | |
1087 | ||
1088 | int | |
1089 | magic_setpos(sv,mg) | |
1090 | SV* sv; | |
1091 | MAGIC* mg; | |
1092 | { | |
1093 | SV* lsv = LvTARG(sv); | |
1094 | SSize_t pos; | |
1095 | STRLEN len; | |
1096 | ||
1097 | mg = 0; | |
1098 | ||
1099 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1100 | mg = mg_find(lsv, 'g'); | |
1101 | if (!mg) { | |
1102 | if (!SvOK(sv)) | |
1103 | return 0; | |
1104 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1105 | mg = mg_find(lsv, 'g'); | |
1106 | } | |
1107 | else if (!SvOK(sv)) { | |
1108 | mg->mg_len = -1; | |
1109 | return 0; | |
1110 | } | |
1111 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1112 | ||
0f15f207 | 1113 | WITH_THR(pos = SvIV(sv) - curcop->cop_arybase); |
a0d0e21e LW |
1114 | if (pos < 0) { |
1115 | pos += len; | |
1116 | if (pos < 0) | |
1117 | pos = 0; | |
1118 | } | |
1119 | else if (pos > len) | |
1120 | pos = len; | |
1121 | mg->mg_len = pos; | |
71be2cbc | 1122 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1123 | |
79072805 LW |
1124 | return 0; |
1125 | } | |
1126 | ||
1127 | int | |
1128 | magic_getglob(sv,mg) | |
1129 | SV* sv; | |
1130 | MAGIC* mg; | |
1131 | { | |
8646b087 | 1132 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1133 | SvFAKE_off(sv); | |
946ec16e | 1134 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1135 | SvFAKE_on(sv); |
1136 | } | |
1137 | else | |
946ec16e | 1138 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1139 | return 0; |
1140 | } | |
1141 | ||
1142 | int | |
1143 | magic_setglob(sv,mg) | |
1144 | SV* sv; | |
1145 | MAGIC* mg; | |
1146 | { | |
1147 | register char *s; | |
1148 | GV* gv; | |
1149 | ||
1150 | if (!SvOK(sv)) | |
1151 | return 0; | |
463ee0b2 | 1152 | s = SvPV(sv, na); |
79072805 LW |
1153 | if (*s == '*' && s[1]) |
1154 | s++; | |
85e6fe83 | 1155 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1156 | if (sv == (SV*)gv) |
1157 | return 0; | |
1158 | if (GvGP(sv)) | |
88e89b8a | 1159 | gp_free((GV*)sv); |
79072805 | 1160 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1161 | return 0; |
1162 | } | |
1163 | ||
1164 | int | |
1165 | magic_setsubstr(sv,mg) | |
1166 | SV* sv; | |
1167 | MAGIC* mg; | |
1168 | { | |
8990e307 LW |
1169 | STRLEN len; |
1170 | char *tmps = SvPV(sv,len); | |
1171 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1172 | return 0; |
1173 | } | |
1174 | ||
1175 | int | |
463ee0b2 LW |
1176 | magic_gettaint(sv,mg) |
1177 | SV* sv; | |
1178 | MAGIC* mg; | |
1179 | { | |
bbce6d69 | 1180 | TAINT_IF((mg->mg_len & 1) || |
1181 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1182 | return 0; |
1183 | } | |
1184 | ||
1185 | int | |
1186 | magic_settaint(sv,mg) | |
1187 | SV* sv; | |
1188 | MAGIC* mg; | |
1189 | { | |
11343788 | 1190 | dTHR; |
748a9306 LW |
1191 | if (localizing) { |
1192 | if (localizing == 1) | |
1193 | mg->mg_len <<= 1; | |
1194 | else | |
1195 | mg->mg_len >>= 1; | |
a0d0e21e | 1196 | } |
748a9306 LW |
1197 | else if (tainted) |
1198 | mg->mg_len |= 1; | |
1199 | else | |
1200 | mg->mg_len &= ~1; | |
463ee0b2 LW |
1201 | return 0; |
1202 | } | |
1203 | ||
1204 | int | |
79072805 LW |
1205 | magic_setvec(sv,mg) |
1206 | SV* sv; | |
1207 | MAGIC* mg; | |
1208 | { | |
1209 | do_vecset(sv); /* XXX slurp this routine */ | |
1210 | return 0; | |
1211 | } | |
1212 | ||
1213 | int | |
68dc0745 | 1214 | magic_getdefelem(sv,mg) |
5f05dabc | 1215 | SV* sv; |
1216 | MAGIC* mg; | |
1217 | { | |
71be2cbc | 1218 | SV *targ = Nullsv; |
5f05dabc | 1219 | if (LvTARGLEN(sv)) { |
68dc0745 | 1220 | if (mg->mg_obj) { |
1221 | HV* hv = (HV*)LvTARG(sv); | |
1222 | HE* he = hv_fetch_ent(hv, mg->mg_obj, FALSE, 0); | |
1223 | if (he) | |
1224 | targ = HeVAL(he); | |
1225 | } | |
1226 | else { | |
1227 | AV* av = (AV*)LvTARG(sv); | |
1228 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) | |
1229 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1230 | } | |
1231 | if (targ && targ != &sv_undef) { | |
e858de61 | 1232 | dTHR; /* just for SvREFCNT_dec */ |
68dc0745 | 1233 | /* somebody else defined it for us */ |
1234 | SvREFCNT_dec(LvTARG(sv)); | |
1235 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1236 | LvTARGLEN(sv) = 0; | |
1237 | SvREFCNT_dec(mg->mg_obj); | |
1238 | mg->mg_obj = Nullsv; | |
1239 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1240 | } | |
5f05dabc | 1241 | } |
71be2cbc | 1242 | else |
1243 | targ = LvTARG(sv); | |
1244 | sv_setsv(sv, targ ? targ : &sv_undef); | |
1245 | return 0; | |
1246 | } | |
1247 | ||
1248 | int | |
68dc0745 | 1249 | magic_setdefelem(sv,mg) |
71be2cbc | 1250 | SV* sv; |
1251 | MAGIC* mg; | |
1252 | { | |
1253 | if (LvTARGLEN(sv)) | |
68dc0745 | 1254 | vivify_defelem(sv); |
1255 | if (LvTARG(sv)) { | |
5f05dabc | 1256 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1257 | SvSETMAGIC(LvTARG(sv)); |
1258 | } | |
5f05dabc | 1259 | return 0; |
1260 | } | |
1261 | ||
1262 | int | |
68dc0745 | 1263 | magic_freedefelem(sv,mg) |
5f05dabc | 1264 | SV* sv; |
1265 | MAGIC* mg; | |
1266 | { | |
1267 | SvREFCNT_dec(LvTARG(sv)); | |
71be2cbc | 1268 | return 0; |
1269 | } | |
1270 | ||
1271 | void | |
68dc0745 | 1272 | vivify_defelem(sv) |
71be2cbc | 1273 | SV* sv; |
1274 | { | |
e858de61 | 1275 | dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/ |
68dc0745 | 1276 | MAGIC* mg; |
1277 | SV* value; | |
71be2cbc | 1278 | |
68dc0745 | 1279 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1280 | return; |
68dc0745 | 1281 | if (mg->mg_obj) { |
1282 | HV* hv = (HV*)LvTARG(sv); | |
1283 | HE* he = hv_fetch_ent(hv, mg->mg_obj, TRUE, 0); | |
1284 | if (!he || (value = HeVAL(he)) == &sv_undef) | |
1285 | croak(no_helem, SvPV(mg->mg_obj, na)); | |
71be2cbc | 1286 | } |
68dc0745 | 1287 | else { |
1288 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1289 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1290 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1291 | else { | |
1292 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
1293 | if (!svp || (value = *svp) == &sv_undef) | |
1294 | croak(no_aelem, (I32)LvTARGOFF(sv)); | |
1295 | } | |
1296 | } | |
3e3baf6d | 1297 | (void)SvREFCNT_inc(value); |
68dc0745 | 1298 | SvREFCNT_dec(LvTARG(sv)); |
1299 | LvTARG(sv) = value; | |
71be2cbc | 1300 | LvTARGLEN(sv) = 0; |
68dc0745 | 1301 | SvREFCNT_dec(mg->mg_obj); |
1302 | mg->mg_obj = Nullsv; | |
1303 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1304 | } |
1305 | ||
1306 | int | |
93a17b20 LW |
1307 | magic_setmglob(sv,mg) |
1308 | SV* sv; | |
1309 | MAGIC* mg; | |
1310 | { | |
a0d0e21e | 1311 | mg->mg_len = -1; |
c6496cc7 | 1312 | SvSCREAM_off(sv); |
93a17b20 LW |
1313 | return 0; |
1314 | } | |
1315 | ||
1316 | int | |
79072805 LW |
1317 | magic_setbm(sv,mg) |
1318 | SV* sv; | |
1319 | MAGIC* mg; | |
1320 | { | |
463ee0b2 | 1321 | sv_unmagic(sv, 'B'); |
79072805 LW |
1322 | SvVALID_off(sv); |
1323 | return 0; | |
1324 | } | |
1325 | ||
1326 | int | |
55497cff | 1327 | magic_setfm(sv,mg) |
1328 | SV* sv; | |
1329 | MAGIC* mg; | |
1330 | { | |
1331 | sv_unmagic(sv, 'f'); | |
1332 | SvCOMPILED_off(sv); | |
1333 | return 0; | |
1334 | } | |
1335 | ||
1336 | int | |
79072805 LW |
1337 | magic_setuvar(sv,mg) |
1338 | SV* sv; | |
1339 | MAGIC* mg; | |
1340 | { | |
1341 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1342 | ||
1343 | if (uf && uf->uf_set) | |
1344 | (*uf->uf_set)(uf->uf_index, sv); | |
1345 | return 0; | |
1346 | } | |
1347 | ||
7a4c00b4 | 1348 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1349 | int |
bbce6d69 | 1350 | magic_setcollxfrm(sv,mg) |
1351 | SV* sv; | |
1352 | MAGIC* mg; | |
1353 | { | |
1354 | /* | |
1355 | * René Descartes said "I think not." | |
1356 | * and vanished with a faint plop. | |
1357 | */ | |
7a4c00b4 | 1358 | if (mg->mg_ptr) { |
1359 | Safefree(mg->mg_ptr); | |
1360 | mg->mg_ptr = NULL; | |
1361 | mg->mg_len = -1; | |
1362 | } | |
bbce6d69 | 1363 | return 0; |
1364 | } | |
7a4c00b4 | 1365 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1366 | |
1367 | int | |
79072805 LW |
1368 | magic_set(sv,mg) |
1369 | SV* sv; | |
1370 | MAGIC* mg; | |
1371 | { | |
11343788 | 1372 | dTHR; |
79072805 LW |
1373 | register char *s; |
1374 | I32 i; | |
8990e307 | 1375 | STRLEN len; |
79072805 | 1376 | switch (*mg->mg_ptr) { |
748a9306 LW |
1377 | case '\001': /* ^A */ |
1378 | sv_setsv(bodytarget, sv); | |
1379 | break; | |
79072805 | 1380 | case '\004': /* ^D */ |
8990e307 | 1381 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1382 | DEBUG_x(dump_all()); |
1383 | break; | |
28f23441 | 1384 | case '\005': /* ^E */ |
1385 | #ifdef VMS | |
1386 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1387 | #else | |
f86702cc | 1388 | /* will anyone ever use this? */ |
1389 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
28f23441 | 1390 | #endif |
1391 | break; | |
79072805 | 1392 | case '\006': /* ^F */ |
463ee0b2 | 1393 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1394 | break; |
a0d0e21e LW |
1395 | case '\010': /* ^H */ |
1396 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1397 | break; | |
79072805 LW |
1398 | case '\t': /* ^I */ |
1399 | if (inplace) | |
1400 | Safefree(inplace); | |
1401 | if (SvOK(sv)) | |
a0d0e21e | 1402 | inplace = savepv(SvPV(sv,na)); |
79072805 LW |
1403 | else |
1404 | inplace = Nullch; | |
1405 | break; | |
28f23441 | 1406 | case '\017': /* ^O */ |
1407 | if (osname) | |
1408 | Safefree(osname); | |
1409 | if (SvOK(sv)) | |
1410 | osname = savepv(SvPV(sv,na)); | |
1411 | else | |
1412 | osname = Nullch; | |
1413 | break; | |
79072805 | 1414 | case '\020': /* ^P */ |
84902520 | 1415 | perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1416 | break; |
1417 | case '\024': /* ^T */ | |
88e89b8a | 1418 | #ifdef BIG_TIME |
1419 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); | |
1420 | #else | |
85e6fe83 | 1421 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1422 | #endif |
79072805 LW |
1423 | break; |
1424 | case '\027': /* ^W */ | |
463ee0b2 | 1425 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1426 | break; |
1427 | case '.': | |
748a9306 LW |
1428 | if (localizing) { |
1429 | if (localizing == 1) | |
1430 | save_sptr((SV**)&last_in_gv); | |
1431 | } | |
88e89b8a | 1432 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e | 1433 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 LW |
1434 | break; |
1435 | case '^': | |
a0d0e21e LW |
1436 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1437 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1438 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1439 | break; |
1440 | case '~': | |
a0d0e21e LW |
1441 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1442 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1443 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1444 | break; |
1445 | case '=': | |
a0d0e21e | 1446 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1447 | break; |
1448 | case '-': | |
a0d0e21e LW |
1449 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1450 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) | |
1451 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; | |
79072805 LW |
1452 | break; |
1453 | case '%': | |
a0d0e21e | 1454 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1455 | break; |
1456 | case '|': | |
4b65379b CS |
1457 | { |
1458 | IO *io = GvIOp(defoutgv); | |
1459 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) | |
1460 | IoFLAGS(io) &= ~IOf_FLUSH; | |
1461 | else { | |
1462 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
1463 | PerlIO *ofp = IoOFP(io); | |
1464 | if (ofp) | |
1465 | (void)PerlIO_flush(ofp); | |
1466 | IoFLAGS(io) |= IOf_FLUSH; | |
1467 | } | |
1468 | } | |
79072805 LW |
1469 | } |
1470 | break; | |
1471 | case '*': | |
463ee0b2 | 1472 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1473 | multiline = (i != 0); |
1474 | break; | |
1475 | case '/': | |
c07a80fd | 1476 | SvREFCNT_dec(nrs); |
1477 | nrs = newSVsv(sv); | |
1478 | SvREFCNT_dec(rs); | |
1479 | rs = SvREFCNT_inc(nrs); | |
79072805 LW |
1480 | break; |
1481 | case '\\': | |
1482 | if (ors) | |
1483 | Safefree(ors); | |
e3c19b7b CS |
1484 | if (SvOK(sv) || SvGMAGICAL(sv)) |
1485 | ors = savepv(SvPV(sv,orslen)); | |
1486 | else { | |
1487 | ors = Nullch; | |
1488 | orslen = 0; | |
1489 | } | |
79072805 LW |
1490 | break; |
1491 | case ',': | |
1492 | if (ofs) | |
1493 | Safefree(ofs); | |
a0d0e21e | 1494 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 LW |
1495 | break; |
1496 | case '#': | |
1497 | if (ofmt) | |
1498 | Safefree(ofmt); | |
a0d0e21e | 1499 | ofmt = savepv(SvPV(sv,na)); |
79072805 LW |
1500 | break; |
1501 | case '[': | |
a0d0e21e | 1502 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1503 | break; |
1504 | case '?': | |
ff0cee69 | 1505 | #ifdef COMPLEX_STATUS |
1506 | if (localizing == 2) { | |
1507 | statusvalue = LvTARGOFF(sv); | |
1508 | statusvalue_vms = LvTARGLEN(sv); | |
1509 | } | |
1510 | else | |
1511 | #endif | |
1512 | #ifdef VMSISH_STATUS | |
1513 | if (VMSISH_STATUS) | |
1514 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1515 | else | |
1516 | #endif | |
1517 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1518 | break; |
1519 | case '!': | |
f86702cc | 1520 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), |
1521 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); | |
79072805 LW |
1522 | break; |
1523 | case '<': | |
463ee0b2 | 1524 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1525 | if (delaymagic) { |
1526 | delaymagic |= DM_RUID; | |
1527 | break; /* don't do magic till later */ | |
1528 | } | |
1529 | #ifdef HAS_SETRUID | |
85e6fe83 | 1530 | (void)setruid((Uid_t)uid); |
79072805 LW |
1531 | #else |
1532 | #ifdef HAS_SETREUID | |
85e6fe83 | 1533 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 | 1534 | #else |
85e6fe83 LW |
1535 | #ifdef HAS_SETRESUID |
1536 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); | |
79072805 LW |
1537 | #else |
1538 | if (uid == euid) /* special case $< = $> */ | |
1539 | (void)setuid(uid); | |
a0d0e21e LW |
1540 | else { |
1541 | uid = (I32)getuid(); | |
463ee0b2 | 1542 | croak("setruid() not implemented"); |
a0d0e21e | 1543 | } |
79072805 LW |
1544 | #endif |
1545 | #endif | |
85e6fe83 | 1546 | #endif |
748a9306 | 1547 | uid = (I32)getuid(); |
4633a7c4 | 1548 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1549 | break; |
1550 | case '>': | |
463ee0b2 | 1551 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1552 | if (delaymagic) { |
1553 | delaymagic |= DM_EUID; | |
1554 | break; /* don't do magic till later */ | |
1555 | } | |
1556 | #ifdef HAS_SETEUID | |
85e6fe83 | 1557 | (void)seteuid((Uid_t)euid); |
79072805 LW |
1558 | #else |
1559 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1560 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1561 | #else | |
1562 | #ifdef HAS_SETRESUID | |
1563 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); | |
79072805 LW |
1564 | #else |
1565 | if (euid == uid) /* special case $> = $< */ | |
1566 | setuid(euid); | |
a0d0e21e LW |
1567 | else { |
1568 | euid = (I32)geteuid(); | |
463ee0b2 | 1569 | croak("seteuid() not implemented"); |
a0d0e21e | 1570 | } |
79072805 LW |
1571 | #endif |
1572 | #endif | |
85e6fe83 | 1573 | #endif |
79072805 | 1574 | euid = (I32)geteuid(); |
4633a7c4 | 1575 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1576 | break; |
1577 | case '(': | |
463ee0b2 | 1578 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1579 | if (delaymagic) { |
1580 | delaymagic |= DM_RGID; | |
1581 | break; /* don't do magic till later */ | |
1582 | } | |
1583 | #ifdef HAS_SETRGID | |
85e6fe83 | 1584 | (void)setrgid((Gid_t)gid); |
79072805 LW |
1585 | #else |
1586 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1587 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1588 | #else | |
1589 | #ifdef HAS_SETRESGID | |
1590 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); | |
79072805 LW |
1591 | #else |
1592 | if (gid == egid) /* special case $( = $) */ | |
1593 | (void)setgid(gid); | |
748a9306 LW |
1594 | else { |
1595 | gid = (I32)getgid(); | |
463ee0b2 | 1596 | croak("setrgid() not implemented"); |
748a9306 | 1597 | } |
79072805 LW |
1598 | #endif |
1599 | #endif | |
85e6fe83 | 1600 | #endif |
79072805 | 1601 | gid = (I32)getgid(); |
4633a7c4 | 1602 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1603 | break; |
1604 | case ')': | |
5cd24f17 | 1605 | #ifdef HAS_SETGROUPS |
1606 | { | |
1607 | char *p = SvPV(sv, na); | |
1608 | Groups_t gary[NGROUPS]; | |
1609 | ||
1610 | SET_NUMERIC_STANDARD(); | |
1611 | while (isSPACE(*p)) | |
1612 | ++p; | |
1613 | egid = I_V(atof(p)); | |
1614 | for (i = 0; i < NGROUPS; ++i) { | |
1615 | while (*p && !isSPACE(*p)) | |
1616 | ++p; | |
1617 | while (isSPACE(*p)) | |
1618 | ++p; | |
1619 | if (!*p) | |
1620 | break; | |
1621 | gary[i] = I_V(atof(p)); | |
1622 | } | |
8cc95fdb | 1623 | if (i) |
1624 | (void)setgroups(i, gary); | |
5cd24f17 | 1625 | } |
1626 | #else /* HAS_SETGROUPS */ | |
463ee0b2 | 1627 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 1628 | #endif /* HAS_SETGROUPS */ |
79072805 LW |
1629 | if (delaymagic) { |
1630 | delaymagic |= DM_EGID; | |
1631 | break; /* don't do magic till later */ | |
1632 | } | |
1633 | #ifdef HAS_SETEGID | |
85e6fe83 | 1634 | (void)setegid((Gid_t)egid); |
79072805 LW |
1635 | #else |
1636 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1637 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1638 | #else | |
1639 | #ifdef HAS_SETRESGID | |
1640 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); | |
79072805 LW |
1641 | #else |
1642 | if (egid == gid) /* special case $) = $( */ | |
1643 | (void)setgid(egid); | |
748a9306 LW |
1644 | else { |
1645 | egid = (I32)getegid(); | |
463ee0b2 | 1646 | croak("setegid() not implemented"); |
748a9306 | 1647 | } |
79072805 LW |
1648 | #endif |
1649 | #endif | |
85e6fe83 | 1650 | #endif |
79072805 | 1651 | egid = (I32)getegid(); |
4633a7c4 | 1652 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1653 | break; |
1654 | case ':': | |
a0d0e21e | 1655 | chopset = SvPV_force(sv,na); |
79072805 LW |
1656 | break; |
1657 | case '0': | |
1658 | if (!origalen) { | |
1659 | s = origargv[0]; | |
1660 | s += strlen(s); | |
1661 | /* See if all the arguments are contiguous in memory */ | |
1662 | for (i = 1; i < origargc; i++) { | |
fb73857a | 1663 | if (origargv[i] == s + 1 |
1664 | #ifdef OS2 | |
1665 | || origargv[i] == s + 2 | |
1666 | #endif | |
1667 | ) | |
79072805 | 1668 | s += strlen(++s); /* this one is ok too */ |
fb73857a | 1669 | else |
1670 | break; | |
79072805 | 1671 | } |
bbce6d69 | 1672 | /* can grab env area too? */ |
fb73857a | 1673 | if (origenviron && (origenviron[0] == s + 1 |
1674 | #ifdef OS2 | |
1675 | || (origenviron[0] == s + 9 && (s += 8)) | |
1676 | #endif | |
1677 | )) { | |
66b1d557 | 1678 | my_setenv("NoNe SuCh", Nullch); |
79072805 LW |
1679 | /* force copy of environment */ |
1680 | for (i = 0; origenviron[i]; i++) | |
1681 | if (origenviron[i] == s + 1) | |
1682 | s += strlen(++s); | |
fb73857a | 1683 | else |
1684 | break; | |
79072805 LW |
1685 | } |
1686 | origalen = s - origargv[0]; | |
1687 | } | |
a0d0e21e | 1688 | s = SvPV_force(sv,len); |
8990e307 | 1689 | i = len; |
79072805 LW |
1690 | if (i >= origalen) { |
1691 | i = origalen; | |
fb73857a | 1692 | /* don't allow system to limit $0 seen by script */ |
1693 | /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */ | |
79072805 | 1694 | Copy(s, origargv[0], i, char); |
fb73857a | 1695 | s = origargv[0]+i; |
1696 | *s = '\0'; | |
79072805 LW |
1697 | } |
1698 | else { | |
1699 | Copy(s, origargv[0], i, char); | |
1700 | s = origargv[0]+i; | |
1701 | *s++ = '\0'; | |
1702 | while (++i < origalen) | |
8990e307 LW |
1703 | *s++ = ' '; |
1704 | s = origargv[0]+i; | |
ed6116ce | 1705 | for (i = 1; i < origargc; i++) |
8990e307 | 1706 | origargv[i] = Nullch; |
79072805 LW |
1707 | } |
1708 | break; | |
1709 | } | |
1710 | return 0; | |
1711 | } | |
1712 | ||
f93b4edd MB |
1713 | #ifdef USE_THREADS |
1714 | int | |
1715 | magic_mutexfree(sv, mg) | |
1716 | SV *sv; | |
1717 | MAGIC *mg; | |
1718 | { | |
1719 | dTHR; | |
bc1f4c86 MB |
1720 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n", |
1721 | (unsigned long)thr, (unsigned long)sv);) | |
f93b4edd MB |
1722 | if (MgOWNER(mg)) |
1723 | croak("panic: magic_mutexfree"); | |
1724 | MUTEX_DESTROY(MgMUTEXP(mg)); | |
1725 | COND_DESTROY(MgCONDP(mg)); | |
e55aaa0e | 1726 | SvREFCNT_dec(sv); |
f93b4edd MB |
1727 | return 0; |
1728 | } | |
1729 | #endif /* USE_THREADS */ | |
1730 | ||
79072805 LW |
1731 | I32 |
1732 | whichsig(sig) | |
1733 | char *sig; | |
1734 | { | |
1735 | register char **sigv; | |
1736 | ||
1737 | for (sigv = sig_name+1; *sigv; sigv++) | |
1738 | if (strEQ(sig,*sigv)) | |
8e07c86e | 1739 | return sig_num[sigv - sig_name]; |
79072805 LW |
1740 | #ifdef SIGCLD |
1741 | if (strEQ(sig,"CHLD")) | |
1742 | return SIGCLD; | |
1743 | #endif | |
1744 | #ifdef SIGCHLD | |
1745 | if (strEQ(sig,"CLD")) | |
1746 | return SIGCHLD; | |
1747 | #endif | |
1748 | return 0; | |
1749 | } | |
1750 | ||
84902520 TB |
1751 | static SV* sig_sv; |
1752 | ||
1753 | static void | |
1754 | unwind_handler_stack(p) | |
1755 | void *p; | |
1756 | { | |
ff26ac79 | 1757 | dTHR; |
84902520 TB |
1758 | U32 flags = *(U32*)p; |
1759 | ||
1760 | if (flags & 1) | |
1761 | savestack_ix -= 5; /* Unprotect save in progress. */ | |
1762 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
1763 | if (flags & 64) | |
1764 | SvREFCNT_dec(sig_sv); | |
1765 | } | |
1766 | ||
ecfc5424 | 1767 | Signal_t |
79072805 | 1768 | sighandler(sig) |
a0d0e21e | 1769 | int sig; |
79072805 | 1770 | { |
11343788 | 1771 | dTHR; |
79072805 LW |
1772 | dSP; |
1773 | GV *gv; | |
a0d0e21e | 1774 | HV *st; |
84902520 | 1775 | SV *sv, *tSv = Sv; |
79072805 | 1776 | CV *cv; |
79072805 | 1777 | AV *oldstack; |
84902520 TB |
1778 | OP *myop = op; |
1779 | U32 flags = 0; | |
1780 | I32 o_save_i = savestack_ix, type; | |
1781 | CONTEXT *cx; | |
1782 | XPV *tXpv = Xpv; | |
1783 | ||
1784 | if (savestack_ix + 15 <= savestack_max) | |
1785 | flags |= 1; | |
1786 | if (cxstack_ix < cxstack_max - 2) | |
1787 | flags |= 2; | |
1788 | if (markstack_ptr < markstack_max - 2) | |
1789 | flags |= 4; | |
1790 | if (retstack_ix < retstack_max - 2) | |
1791 | flags |= 8; | |
1792 | if (scopestack_ix < scopestack_max - 3) | |
1793 | flags |= 16; | |
1794 | ||
1795 | if (flags & 2) { /* POPBLOCK may decrease cxstack too early. */ | |
1796 | cxstack_ix++; /* Protect from overwrite. */ | |
1797 | cx = &cxstack[cxstack_ix]; | |
1798 | type = cx->cx_type; /* Can be during partial write. */ | |
1799 | cx->cx_type = CXt_NULL; /* Make it safe for unwind. */ | |
1800 | } | |
ff0cee69 | 1801 | if (!psig_ptr[sig]) |
1802 | die("Signal SIG%s received, but no signal handler set.\n", | |
1803 | sig_name[sig]); | |
1804 | ||
84902520 TB |
1805 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
1806 | infinity, so we fix 4 (in fact 5): */ | |
1807 | if (flags & 1) { | |
1808 | savestack_ix += 5; /* Protect save in progress. */ | |
1809 | o_save_i = savestack_ix; | |
1810 | SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags); | |
1811 | } | |
1812 | if (flags & 4) | |
1813 | markstack_ptr++; /* Protect mark. */ | |
1814 | if (flags & 8) { | |
1815 | retstack_ix++; | |
1816 | retstack[retstack_ix] = NULL; | |
1817 | } | |
1818 | if (flags & 16) | |
1819 | scopestack_ix += 1; | |
1820 | /* sv_2cv is too complicated, try a simpler variant first: */ | |
1821 | if (!SvROK(psig_ptr[sig]) || !(cv = (CV*)SvRV(psig_ptr[sig])) | |
1822 | || SvTYPE(cv) != SVt_PVCV) | |
1823 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); | |
1824 | ||
a0d0e21e | 1825 | if (!cv || !CvROOT(cv)) { |
79072805 LW |
1826 | if (dowarn) |
1827 | warn("SIG%s handler \"%s\" not defined.\n", | |
88e89b8a | 1828 | sig_name[sig], GvENAME(gv) ); |
79072805 LW |
1829 | return; |
1830 | } | |
1831 | ||
88e89b8a | 1832 | oldstack = curstack; |
1833 | if (curstack != signalstack) | |
a0d0e21e | 1834 | AvFILL(signalstack) = 0; |
88e89b8a | 1835 | SWITCHSTACK(curstack, signalstack); |
79072805 | 1836 | |
84902520 | 1837 | if(psig_name[sig]) { |
88e89b8a | 1838 | sv = SvREFCNT_inc(psig_name[sig]); |
84902520 TB |
1839 | flags |= 64; |
1840 | sig_sv = sv; | |
1841 | } else { | |
ff0cee69 | 1842 | sv = sv_newmortal(); |
1843 | sv_setpv(sv,sig_name[sig]); | |
88e89b8a | 1844 | } |
a0d0e21e | 1845 | PUSHMARK(sp); |
79072805 | 1846 | PUSHs(sv); |
79072805 | 1847 | PUTBACK; |
a0d0e21e LW |
1848 | |
1849 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 LW |
1850 | |
1851 | SWITCHSTACK(signalstack, oldstack); | |
84902520 TB |
1852 | if (flags & 1) |
1853 | savestack_ix -= 8; /* Unprotect save in progress. */ | |
1854 | if (flags & 2) { | |
1855 | cxstack[cxstack_ix].cx_type = type; | |
1856 | cxstack_ix -= 1; | |
1857 | } | |
1858 | if (flags & 4) | |
1859 | markstack_ptr--; | |
1860 | if (flags & 8) | |
1861 | retstack_ix--; | |
1862 | if (flags & 16) | |
1863 | scopestack_ix -= 1; | |
1864 | if (flags & 64) | |
1865 | SvREFCNT_dec(sv); | |
1866 | op = myop; /* Apparently not needed... */ | |
1867 | ||
1868 | Sv = tSv; /* Restore global temporaries. */ | |
1869 | Xpv = tXpv; | |
79072805 LW |
1870 | return; |
1871 | } |