Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
a0d0e21e | 3 | * Copyright (c) 1991-1994, 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 | |
188ea221 CS |
23 | #ifdef HAS_GETGROUPS |
24 | # ifndef NGROUPS | |
25 | # define NGROUPS 32 | |
26 | # endif | |
27 | #endif | |
28 | ||
bbce6d69 | 29 | #define TAINT_FROM_REGEX(sv,rx) \ |
48e43a1c CS |
30 | if ((rx)->exec_tainted) \ |
31 | SvTAINTED_on(sv); \ | |
32 | else \ | |
bbce6d69 | 33 | SvTAINTED_off(sv); |
34 | ||
c07a80fd | 35 | /* |
36 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
37 | */ | |
38 | ||
39 | struct magic_state { | |
40 | SV* mgs_sv; | |
41 | U32 mgs_flags; | |
42 | }; | |
43 | typedef struct magic_state MGS; | |
44 | ||
45 | static void restore_magic _((void *p)); | |
46 | ||
48e43a1c CS |
47 | static void |
48 | save_magic(mgs, sv) | |
49 | MGS* mgs; | |
c07a80fd | 50 | SV* sv; |
51 | { | |
c07a80fd | 52 | assert(SvMAGICAL(sv)); |
53 | ||
c07a80fd | 54 | mgs->mgs_sv = sv; |
55 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
56 | SAVEDESTRUCTOR(restore_magic, mgs); | |
57 | ||
58 | SvMAGICAL_off(sv); | |
59 | SvREADONLY_off(sv); | |
60 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
c07a80fd | 61 | } |
62 | ||
63 | static void | |
64 | restore_magic(p) | |
65 | void* p; | |
66 | { | |
48e43a1c | 67 | MGS* mgs = (MGS*)p; |
c07a80fd | 68 | SV* sv = mgs->mgs_sv; |
69 | ||
70 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
71 | { | |
72 | if (mgs->mgs_flags) | |
73 | SvFLAGS(sv) |= mgs->mgs_flags; | |
74 | else | |
75 | mg_magical(sv); | |
76 | if (SvGMAGICAL(sv)) | |
77 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
78 | } | |
c07a80fd | 79 | } |
80 | ||
8e07c86e | 81 | |
8990e307 LW |
82 | void |
83 | mg_magical(sv) | |
84 | SV* sv; | |
85 | { | |
86 | MAGIC* mg; | |
87 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
88 | MGVTBL* vtbl = mg->mg_virtual; | |
89 | if (vtbl) { | |
a0d0e21e | 90 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
91 | SvGMAGICAL_on(sv); |
92 | if (vtbl->svt_set) | |
93 | SvSMAGICAL_on(sv); | |
94 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) | |
95 | SvRMAGICAL_on(sv); | |
96 | } | |
97 | } | |
98 | } | |
99 | ||
79072805 LW |
100 | int |
101 | mg_get(sv) | |
102 | SV* sv; | |
103 | { | |
48e43a1c | 104 | MGS mgs; |
79072805 | 105 | MAGIC* mg; |
c6496cc7 | 106 | MAGIC** mgp; |
760ac839 | 107 | int mgp_valid = 0; |
463ee0b2 | 108 | |
c07a80fd | 109 | ENTER; |
48e43a1c | 110 | save_magic(&mgs, sv); |
463ee0b2 | 111 | |
c6496cc7 | 112 | mgp = &SvMAGIC(sv); |
113 | while ((mg = *mgp) != 0) { | |
79072805 | 114 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e | 115 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
79072805 | 116 | (*vtbl->svt_get)(sv, mg); |
c6496cc7 | 117 | /* Ignore this magic if it's been deleted */ |
48e43a1c CS |
118 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
119 | (mg->mg_flags & MGf_GSKIP)) | |
120 | mgs.mgs_flags = 0; | |
a0d0e21e | 121 | } |
c6496cc7 | 122 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 123 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 124 | mgp = &mg->mg_moremagic; |
760ac839 LW |
125 | mgp_valid = 1; |
126 | } | |
127 | else | |
128 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 129 | } |
463ee0b2 | 130 | |
c07a80fd | 131 | LEAVE; |
79072805 LW |
132 | return 0; |
133 | } | |
134 | ||
135 | int | |
136 | mg_set(sv) | |
137 | SV* sv; | |
138 | { | |
48e43a1c | 139 | MGS mgs; |
79072805 | 140 | MAGIC* mg; |
463ee0b2 LW |
141 | MAGIC* nextmg; |
142 | ||
c07a80fd | 143 | ENTER; |
48e43a1c | 144 | save_magic(&mgs, sv); |
463ee0b2 LW |
145 | |
146 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 147 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 148 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
149 | if (mg->mg_flags & MGf_GSKIP) { |
150 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
48e43a1c | 151 | mgs.mgs_flags = 0; |
a0d0e21e | 152 | } |
79072805 LW |
153 | if (vtbl && vtbl->svt_set) |
154 | (*vtbl->svt_set)(sv, mg); | |
155 | } | |
463ee0b2 | 156 | |
c07a80fd | 157 | LEAVE; |
79072805 LW |
158 | return 0; |
159 | } | |
160 | ||
161 | U32 | |
162 | mg_len(sv) | |
163 | SV* sv; | |
164 | { | |
165 | MAGIC* mg; | |
748a9306 | 166 | char *junk; |
463ee0b2 | 167 | STRLEN len; |
463ee0b2 | 168 | |
79072805 LW |
169 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
170 | MGVTBL* vtbl = mg->mg_virtual; | |
85e6fe83 | 171 | if (vtbl && vtbl->svt_len) { |
48e43a1c CS |
172 | MGS mgs; |
173 | ||
c07a80fd | 174 | ENTER; |
48e43a1c | 175 | save_magic(&mgs, sv); |
a0d0e21e | 176 | /* omit MGf_GSKIP -- not changed here */ |
85e6fe83 | 177 | len = (*vtbl->svt_len)(sv, mg); |
c07a80fd | 178 | LEAVE; |
85e6fe83 LW |
179 | return len; |
180 | } | |
181 | } | |
182 | ||
748a9306 | 183 | junk = SvPV(sv, len); |
463ee0b2 | 184 | return len; |
79072805 LW |
185 | } |
186 | ||
187 | int | |
188 | mg_clear(sv) | |
189 | SV* sv; | |
190 | { | |
48e43a1c | 191 | MGS mgs; |
79072805 | 192 | MAGIC* mg; |
463ee0b2 | 193 | |
c07a80fd | 194 | ENTER; |
48e43a1c | 195 | save_magic(&mgs, sv); |
463ee0b2 | 196 | |
79072805 LW |
197 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
198 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
199 | /* omit GSKIP -- never set here */ |
200 | ||
79072805 LW |
201 | if (vtbl && vtbl->svt_clear) |
202 | (*vtbl->svt_clear)(sv, mg); | |
203 | } | |
463ee0b2 | 204 | |
c07a80fd | 205 | LEAVE; |
79072805 LW |
206 | return 0; |
207 | } | |
208 | ||
93a17b20 LW |
209 | MAGIC* |
210 | mg_find(sv, type) | |
211 | SV* sv; | |
a0d0e21e | 212 | int type; |
93a17b20 LW |
213 | { |
214 | MAGIC* mg; | |
93a17b20 LW |
215 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
216 | if (mg->mg_type == type) | |
217 | return mg; | |
218 | } | |
219 | return 0; | |
220 | } | |
221 | ||
79072805 | 222 | int |
463ee0b2 | 223 | mg_copy(sv, nsv, key, klen) |
79072805 | 224 | SV* sv; |
463ee0b2 LW |
225 | SV* nsv; |
226 | char *key; | |
88e89b8a | 227 | I32 klen; |
79072805 | 228 | { |
463ee0b2 | 229 | int count = 0; |
79072805 | 230 | MAGIC* mg; |
463ee0b2 LW |
231 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
232 | if (isUPPER(mg->mg_type)) { | |
a0d0e21e | 233 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 234 | count++; |
79072805 | 235 | } |
79072805 | 236 | } |
463ee0b2 | 237 | return count; |
79072805 LW |
238 | } |
239 | ||
240 | int | |
463ee0b2 | 241 | mg_free(sv) |
79072805 LW |
242 | SV* sv; |
243 | { | |
244 | MAGIC* mg; | |
245 | MAGIC* moremagic; | |
246 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
247 | MGVTBL* vtbl = mg->mg_virtual; | |
248 | moremagic = mg->mg_moremagic; | |
249 | if (vtbl && vtbl->svt_free) | |
250 | (*vtbl->svt_free)(sv, mg); | |
93a17b20 | 251 | if (mg->mg_ptr && mg->mg_type != 'g') |
88e89b8a | 252 | if (mg->mg_len >= 0) |
253 | Safefree(mg->mg_ptr); | |
254 | else if (mg->mg_len == HEf_SVKEY) | |
255 | SvREFCNT_dec((SV*)mg->mg_ptr); | |
85e6fe83 | 256 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 257 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
258 | Safefree(mg); |
259 | } | |
260 | SvMAGIC(sv) = 0; | |
261 | return 0; | |
262 | } | |
263 | ||
264 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
265 | #include <signal.h> | |
266 | #endif | |
267 | ||
93a17b20 LW |
268 | U32 |
269 | magic_len(sv, mg) | |
270 | SV *sv; | |
271 | MAGIC *mg; | |
272 | { | |
273 | register I32 paren; | |
274 | register char *s; | |
275 | register I32 i; | |
bbce6d69 | 276 | register REGEXP *rx; |
748a9306 | 277 | char *t; |
93a17b20 LW |
278 | |
279 | switch (*mg->mg_ptr) { | |
280 | case '1': case '2': case '3': case '4': | |
281 | case '5': case '6': case '7': case '8': case '9': case '&': | |
bbce6d69 | 282 | if (curpm && (rx = curpm->op_pmregexp)) { |
93a17b20 LW |
283 | paren = atoi(mg->mg_ptr); |
284 | getparen: | |
bbce6d69 | 285 | if (paren <= rx->nparens && |
286 | (s = rx->startp[paren]) && | |
287 | (t = rx->endp[paren])) | |
288 | { | |
748a9306 | 289 | i = t - s; |
bbce6d69 | 290 | if (i >= 0) { |
291 | TAINT_IF(rx->exec_tainted); | |
93a17b20 | 292 | return i; |
bbce6d69 | 293 | } |
93a17b20 | 294 | } |
93a17b20 | 295 | } |
748a9306 | 296 | return 0; |
93a17b20 LW |
297 | break; |
298 | case '+': | |
bbce6d69 | 299 | if (curpm && (rx = curpm->op_pmregexp)) { |
300 | paren = rx->lastparen; | |
a0d0e21e LW |
301 | if (!paren) |
302 | return 0; | |
93a17b20 LW |
303 | goto getparen; |
304 | } | |
748a9306 | 305 | return 0; |
93a17b20 LW |
306 | break; |
307 | case '`': | |
bbce6d69 | 308 | if (curpm && (rx = curpm->op_pmregexp)) { |
309 | if ((s = rx->subbeg)) { | |
310 | i = rx->startp[0] - s; | |
311 | if (i >= 0) { | |
312 | TAINT_IF(rx->exec_tainted); | |
93a17b20 | 313 | return i; |
bbce6d69 | 314 | } |
93a17b20 | 315 | } |
93a17b20 | 316 | } |
748a9306 | 317 | return 0; |
93a17b20 | 318 | case '\'': |
bbce6d69 | 319 | if (curpm && (rx = curpm->op_pmregexp)) { |
320 | if ((s = rx->endp[0])) { | |
321 | TAINT_IF(rx->exec_tainted); | |
322 | return (STRLEN) (rx->subend - s); | |
93a17b20 | 323 | } |
93a17b20 | 324 | } |
748a9306 | 325 | return 0; |
93a17b20 LW |
326 | case ',': |
327 | return (STRLEN)ofslen; | |
328 | case '\\': | |
329 | return (STRLEN)orslen; | |
330 | } | |
331 | magic_get(sv,mg); | |
332 | if (!SvPOK(sv) && SvNIOK(sv)) | |
463ee0b2 | 333 | sv_2pv(sv, &na); |
93a17b20 LW |
334 | if (SvPOK(sv)) |
335 | return SvCUR(sv); | |
336 | return 0; | |
337 | } | |
338 | ||
79072805 LW |
339 | int |
340 | magic_get(sv, mg) | |
341 | SV *sv; | |
342 | MAGIC *mg; | |
343 | { | |
344 | register I32 paren; | |
345 | register char *s; | |
346 | register I32 i; | |
bbce6d69 | 347 | register REGEXP *rx; |
748a9306 | 348 | char *t; |
79072805 LW |
349 | |
350 | switch (*mg->mg_ptr) { | |
748a9306 LW |
351 | case '\001': /* ^A */ |
352 | sv_setsv(sv, bodytarget); | |
353 | break; | |
79072805 | 354 | case '\004': /* ^D */ |
188ea221 | 355 | sv_setiv(sv, (IV)(debug & 32767)); |
79072805 | 356 | break; |
28f23441 | 357 | case '\005': /* ^E */ |
358 | #ifdef VMS | |
359 | { | |
360 | # include <descrip.h> | |
361 | # include <starlet.h> | |
362 | char msg[255]; | |
363 | $DESCRIPTOR(msgdsc,msg); | |
946ec16e | 364 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 | 365 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
366 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
367 | else | |
368 | sv_setpv(sv,""); | |
369 | } | |
370 | #else | |
88e89b8a | 371 | #ifdef OS2 |
946ec16e | 372 | sv_setnv(sv, (double)Perl_rc); |
88e89b8a | 373 | sv_setpv(sv, os2error(Perl_rc)); |
374 | #else | |
946ec16e | 375 | sv_setnv(sv, (double)errno); |
28f23441 | 376 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
377 | #endif | |
88e89b8a | 378 | #endif |
946ec16e | 379 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 380 | break; |
79072805 | 381 | case '\006': /* ^F */ |
188ea221 | 382 | sv_setiv(sv, (IV)maxsysfd); |
79072805 | 383 | break; |
a0d0e21e | 384 | case '\010': /* ^H */ |
188ea221 | 385 | sv_setiv(sv, (IV)hints); |
a0d0e21e | 386 | break; |
79072805 LW |
387 | case '\t': /* ^I */ |
388 | if (inplace) | |
389 | sv_setpv(sv, inplace); | |
390 | else | |
188ea221 | 391 | sv_setsv(sv, &sv_undef); |
79072805 | 392 | break; |
28f23441 | 393 | case '\017': /* ^O */ |
188ea221 | 394 | sv_setpv(sv, osname); |
28f23441 | 395 | break; |
79072805 | 396 | case '\020': /* ^P */ |
188ea221 | 397 | sv_setiv(sv, (IV)perldb); |
79072805 LW |
398 | break; |
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)) { |
88e89b8a | 412 | paren = atoi(GvENAME((GV*)mg->mg_obj)); |
79072805 | 413 | getparen: |
bbce6d69 | 414 | if (paren <= rx->nparens && |
415 | (s = rx->startp[paren]) && | |
416 | (t = rx->endp[paren])) | |
417 | { | |
748a9306 LW |
418 | i = t - s; |
419 | if (i >= 0) { | |
79072805 | 420 | sv_setpvn(sv,s,i); |
bbce6d69 | 421 | TAINT_FROM_REGEX(sv,rx); |
748a9306 LW |
422 | break; |
423 | } | |
79072805 | 424 | } |
79072805 | 425 | } |
748a9306 | 426 | sv_setsv(sv,&sv_undef); |
79072805 LW |
427 | break; |
428 | case '+': | |
bbce6d69 | 429 | if (curpm && (rx = curpm->op_pmregexp)) { |
430 | paren = rx->lastparen; | |
a0d0e21e LW |
431 | if (paren) |
432 | goto getparen; | |
79072805 | 433 | } |
748a9306 | 434 | sv_setsv(sv,&sv_undef); |
79072805 LW |
435 | break; |
436 | case '`': | |
bbce6d69 | 437 | if (curpm && (rx = curpm->op_pmregexp)) { |
438 | if ((s = rx->subbeg)) { | |
439 | i = rx->startp[0] - s; | |
748a9306 | 440 | if (i >= 0) { |
79072805 | 441 | sv_setpvn(sv,s,i); |
bbce6d69 | 442 | TAINT_FROM_REGEX(sv,rx); |
748a9306 LW |
443 | break; |
444 | } | |
79072805 | 445 | } |
79072805 | 446 | } |
748a9306 | 447 | sv_setsv(sv,&sv_undef); |
79072805 LW |
448 | break; |
449 | case '\'': | |
bbce6d69 | 450 | if (curpm && (rx = curpm->op_pmregexp)) { |
451 | if ((s = rx->endp[0])) { | |
452 | sv_setpvn(sv,s, rx->subend - s); | |
453 | TAINT_FROM_REGEX(sv,rx); | |
748a9306 | 454 | break; |
79072805 | 455 | } |
79072805 | 456 | } |
748a9306 | 457 | sv_setsv(sv,&sv_undef); |
79072805 LW |
458 | break; |
459 | case '.': | |
460 | #ifndef lint | |
a0d0e21e | 461 | if (GvIO(last_in_gv)) { |
188ea221 | 462 | sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv))); |
79072805 LW |
463 | } |
464 | #endif | |
465 | break; | |
466 | case '?': | |
188ea221 | 467 | sv_setiv(sv, (IV)statusvalue); |
79072805 LW |
468 | break; |
469 | case '^': | |
a0d0e21e | 470 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 LW |
471 | if (s) |
472 | sv_setpv(sv,s); | |
473 | else { | |
474 | sv_setpv(sv,GvENAME(defoutgv)); | |
475 | sv_catpv(sv,"_TOP"); | |
476 | } | |
477 | break; | |
478 | case '~': | |
a0d0e21e | 479 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 LW |
480 | if (!s) |
481 | s = GvENAME(defoutgv); | |
482 | sv_setpv(sv,s); | |
483 | break; | |
484 | #ifndef lint | |
485 | case '=': | |
188ea221 | 486 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 LW |
487 | break; |
488 | case '-': | |
188ea221 | 489 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 LW |
490 | break; |
491 | case '%': | |
188ea221 | 492 | sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv))); |
79072805 LW |
493 | break; |
494 | #endif | |
495 | case ':': | |
496 | break; | |
497 | case '/': | |
498 | break; | |
499 | case '[': | |
188ea221 | 500 | sv_setiv(sv, (IV)curcop->cop_arybase); |
79072805 LW |
501 | break; |
502 | case '|': | |
188ea221 | 503 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
504 | break; |
505 | case ',': | |
506 | sv_setpvn(sv,ofs,ofslen); | |
507 | break; | |
508 | case '\\': | |
509 | sv_setpvn(sv,ors,orslen); | |
510 | break; | |
511 | case '#': | |
512 | sv_setpv(sv,ofmt); | |
513 | break; | |
514 | case '!': | |
a5f75d66 | 515 | #ifdef VMS |
946ec16e | 516 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 517 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 518 | #else |
88e89b8a | 519 | { |
520 | int saveerrno = errno; | |
946ec16e | 521 | sv_setnv(sv, (double)errno); |
88e89b8a | 522 | #ifdef OS2 |
523 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
524 | else | |
a5f75d66 | 525 | #endif |
2304df62 | 526 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 527 | errno = saveerrno; |
528 | } | |
529 | #endif | |
946ec16e | 530 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
531 | break; |
532 | case '<': | |
188ea221 | 533 | sv_setiv(sv, (IV)uid); |
79072805 LW |
534 | break; |
535 | case '>': | |
188ea221 | 536 | sv_setiv(sv, (IV)euid); |
79072805 LW |
537 | break; |
538 | case '(': | |
188ea221 | 539 | sv_setiv(sv, (IV)gid); |
79072805 LW |
540 | s = buf; |
541 | (void)sprintf(s,"%d",(int)gid); | |
542 | goto add_groups; | |
543 | case ')': | |
188ea221 | 544 | sv_setiv(sv, (IV)egid); |
79072805 LW |
545 | s = buf; |
546 | (void)sprintf(s,"%d",(int)egid); | |
547 | add_groups: | |
548 | while (*s) s++; | |
549 | #ifdef HAS_GETGROUPS | |
79072805 | 550 | { |
a0d0e21e | 551 | Groups_t gary[NGROUPS]; |
79072805 LW |
552 | |
553 | i = getgroups(NGROUPS,gary); | |
554 | while (--i >= 0) { | |
188ea221 | 555 | (void)sprintf(s," %d", (int)gary[i]); |
79072805 LW |
556 | while (*s) s++; |
557 | } | |
558 | } | |
559 | #endif | |
560 | sv_setpv(sv,buf); | |
29355cf7 | 561 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
562 | break; |
563 | case '*': | |
564 | break; | |
565 | case '0': | |
566 | break; | |
567 | } | |
a0d0e21e | 568 | return 0; |
79072805 LW |
569 | } |
570 | ||
571 | int | |
572 | magic_getuvar(sv, mg) | |
573 | SV *sv; | |
574 | MAGIC *mg; | |
575 | { | |
576 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
577 | ||
578 | if (uf && uf->uf_val) | |
579 | (*uf->uf_val)(uf->uf_index, sv); | |
580 | return 0; | |
581 | } | |
582 | ||
583 | int | |
584 | magic_setenv(sv,mg) | |
585 | SV* sv; | |
586 | MAGIC* mg; | |
587 | { | |
588 | register char *s; | |
88e89b8a | 589 | char *ptr; |
a0d0e21e LW |
590 | STRLEN len; |
591 | I32 i; | |
592 | s = SvPV(sv,len); | |
188ea221 | 593 | ptr = MgPV(mg); |
88e89b8a | 594 | my_setenv(ptr, s); |
a0d0e21e LW |
595 | #ifdef DYNAMIC_ENV_FETCH |
596 | /* We just undefd an environment var. Is a replacement */ | |
597 | /* waiting in the wings? */ | |
598 | if (!len) { | |
88e89b8a | 599 | HE *envhe; |
188ea221 CS |
600 | SV *keysv; |
601 | if (mg->mg_len == HEf_SVKEY) keysv = (SV *)mg->mg_ptr; | |
602 | else keysv = newSVpv(mg->mg_ptr,mg->mg_len); | |
603 | if (envhe = hv_fetch_ent(GvHVn(envgv),keysv,FALSE,0)) | |
88e89b8a | 604 | s = SvPV(HeVAL(envhe),len); |
188ea221 | 605 | if (mg->mg_len != HEf_SVKEY) SvREFCNT_dec(keysv); |
a0d0e21e LW |
606 | } |
607 | #endif | |
79072805 LW |
608 | /* And you'll never guess what the dog had */ |
609 | /* in its mouth... */ | |
463ee0b2 | 610 | if (tainting) { |
88e89b8a | 611 | if (s && strEQ(ptr,"PATH")) { |
a0d0e21e | 612 | char *strend = s + len; |
463ee0b2 LW |
613 | |
614 | while (s < strend) { | |
615 | s = cpytill(tokenbuf,s,strend,':',&i); | |
616 | s++; | |
617 | if (*tokenbuf != '/' | |
a0d0e21e | 618 | || (Stat(tokenbuf,&statbuf) && (statbuf.st_mode & 2)) ) |
8990e307 | 619 | MgTAINTEDDIR_on(mg); |
463ee0b2 | 620 | } |
79072805 LW |
621 | } |
622 | } | |
79072805 LW |
623 | return 0; |
624 | } | |
625 | ||
626 | int | |
85e6fe83 LW |
627 | magic_clearenv(sv,mg) |
628 | SV* sv; | |
629 | MAGIC* mg; | |
630 | { | |
188ea221 | 631 | my_setenv(MgPV(mg),Nullch); |
85e6fe83 LW |
632 | return 0; |
633 | } | |
634 | ||
88e89b8a | 635 | int |
636 | magic_getsig(sv,mg) | |
637 | SV* sv; | |
638 | MAGIC* mg; | |
639 | { | |
640 | I32 i; | |
641 | /* Are we fetching a signal entry? */ | |
188ea221 | 642 | i = whichsig(MgPV(mg)); |
88e89b8a | 643 | if (i) { |
644 | if(psig_ptr[i]) | |
645 | sv_setsv(sv,psig_ptr[i]); | |
646 | else { | |
ff68c719 | 647 | Sighandler_t sigstate = rsignal_state(i); |
648 | ||
88e89b8a | 649 | /* cache state so we don't fetch it again */ |
ff68c719 | 650 | if(sigstate == SIG_IGN) |
88e89b8a | 651 | sv_setpv(sv,"IGNORE"); |
652 | else | |
653 | sv_setsv(sv,&sv_undef); | |
654 | psig_ptr[i] = SvREFCNT_inc(sv); | |
655 | SvTEMP_off(sv); | |
656 | } | |
657 | } | |
658 | return 0; | |
659 | } | |
660 | int | |
661 | magic_clearsig(sv,mg) | |
662 | SV* sv; | |
663 | MAGIC* mg; | |
664 | { | |
665 | I32 i; | |
666 | /* Are we clearing a signal entry? */ | |
188ea221 | 667 | i = whichsig(MgPV(mg)); |
88e89b8a | 668 | if (i) { |
669 | if(psig_ptr[i]) { | |
670 | SvREFCNT_dec(psig_ptr[i]); | |
671 | psig_ptr[i]=0; | |
672 | } | |
673 | if(psig_name[i]) { | |
674 | SvREFCNT_dec(psig_name[i]); | |
675 | psig_name[i]=0; | |
676 | } | |
677 | } | |
678 | return 0; | |
679 | } | |
3d37d572 | 680 | |
85e6fe83 | 681 | int |
79072805 LW |
682 | magic_setsig(sv,mg) |
683 | SV* sv; | |
684 | MAGIC* mg; | |
685 | { | |
686 | register char *s; | |
687 | I32 i; | |
748a9306 | 688 | SV** svp; |
a0d0e21e | 689 | |
188ea221 | 690 | s = MgPV(mg); |
748a9306 LW |
691 | if (*s == '_') { |
692 | if (strEQ(s,"__DIE__")) | |
693 | svp = &diehook; | |
694 | else if (strEQ(s,"__WARN__")) | |
695 | svp = &warnhook; | |
696 | else if (strEQ(s,"__PARSE__")) | |
697 | svp = &parsehook; | |
698 | else | |
699 | croak("No such hook: %s", s); | |
700 | i = 0; | |
4633a7c4 LW |
701 | if (*svp) { |
702 | SvREFCNT_dec(*svp); | |
703 | *svp = 0; | |
704 | } | |
748a9306 LW |
705 | } |
706 | else { | |
707 | i = whichsig(s); /* ...no, a brick */ | |
708 | if (!i) { | |
709 | if (dowarn || strEQ(s,"ALARM")) | |
710 | warn("No such signal: SIG%s", s); | |
711 | return 0; | |
712 | } | |
88e89b8a | 713 | if(psig_ptr[i]) |
714 | SvREFCNT_dec(psig_ptr[i]); | |
715 | psig_ptr[i] = SvREFCNT_inc(sv); | |
716 | if(psig_name[i]) | |
717 | SvREFCNT_dec(psig_name[i]); | |
8646b087 | 718 | psig_name[i] = newSVpv(s,strlen(s)); |
88e89b8a | 719 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
720 | SvREADONLY_on(psig_name[i]); | |
748a9306 | 721 | } |
a0d0e21e | 722 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 723 | if (i) |
ff68c719 | 724 | (void)rsignal(i, sighandler); |
748a9306 LW |
725 | else |
726 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
727 | return 0; |
728 | } | |
729 | s = SvPV_force(sv,na); | |
748a9306 LW |
730 | if (strEQ(s,"IGNORE")) { |
731 | if (i) | |
ff68c719 | 732 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
733 | else |
734 | *svp = 0; | |
735 | } | |
736 | else if (strEQ(s,"DEFAULT") || !*s) { | |
737 | if (i) | |
ff68c719 | 738 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
739 | else |
740 | *svp = 0; | |
741 | } | |
79072805 | 742 | else { |
760ac839 LW |
743 | if(hints & HINT_STRICT_REFS) |
744 | die(no_symref,s,"a subroutine"); | |
2304df62 AD |
745 | if (!strchr(s,':') && !strchr(s,'\'')) { |
746 | sprintf(tokenbuf, "main::%s",s); | |
79072805 LW |
747 | sv_setpv(sv,tokenbuf); |
748 | } | |
748a9306 | 749 | if (i) |
ff68c719 | 750 | (void)rsignal(i, sighandler); |
748a9306 LW |
751 | else |
752 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
753 | } |
754 | return 0; | |
755 | } | |
756 | ||
757 | int | |
463ee0b2 | 758 | magic_setisa(sv,mg) |
79072805 LW |
759 | SV* sv; |
760 | MAGIC* mg; | |
761 | { | |
463ee0b2 LW |
762 | sub_generation++; |
763 | return 0; | |
764 | } | |
765 | ||
a0d0e21e LW |
766 | #ifdef OVERLOAD |
767 | ||
463ee0b2 | 768 | int |
a0d0e21e | 769 | magic_setamagic(sv,mg) |
463ee0b2 LW |
770 | SV* sv; |
771 | MAGIC* mg; | |
772 | { | |
a0d0e21e LW |
773 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
774 | amagic_generation++; | |
463ee0b2 | 775 | |
a0d0e21e LW |
776 | return 0; |
777 | } | |
778 | #endif /* OVERLOAD */ | |
463ee0b2 | 779 | |
946ec16e | 780 | int |
781 | magic_setnkeys(sv,mg) | |
782 | SV* sv; | |
783 | MAGIC* mg; | |
784 | { | |
785 | if (LvTARG(sv)) { | |
786 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
787 | LvTARG(sv) = Nullsv; /* Don't allow a ref to reassign this. */ | |
788 | } | |
789 | return 0; | |
790 | } | |
791 | ||
a0d0e21e LW |
792 | static int |
793 | magic_methpack(sv,mg,meth) | |
794 | SV* sv; | |
795 | MAGIC* mg; | |
796 | char *meth; | |
797 | { | |
798 | dSP; | |
463ee0b2 | 799 | |
a0d0e21e LW |
800 | ENTER; |
801 | SAVETMPS; | |
802 | PUSHMARK(sp); | |
803 | EXTEND(sp, 2); | |
804 | PUSHs(mg->mg_obj); | |
88e89b8a | 805 | if (mg->mg_ptr) { |
806 | if (mg->mg_len >= 0) | |
807 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
808 | else if (mg->mg_len == HEf_SVKEY) | |
809 | PUSHs((SV*)mg->mg_ptr); | |
810 | } | |
a0d0e21e LW |
811 | else if (mg->mg_type == 'p') |
812 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
813 | PUTBACK; |
814 | ||
a0d0e21e LW |
815 | if (perl_call_method(meth, G_SCALAR)) |
816 | sv_setsv(sv, *stack_sp--); | |
463ee0b2 | 817 | |
a0d0e21e LW |
818 | FREETMPS; |
819 | LEAVE; | |
820 | return 0; | |
821 | } | |
463ee0b2 | 822 | |
a0d0e21e LW |
823 | int |
824 | magic_getpack(sv,mg) | |
825 | SV* sv; | |
826 | MAGIC* mg; | |
827 | { | |
828 | magic_methpack(sv,mg,"FETCH"); | |
829 | if (mg->mg_ptr) | |
830 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
831 | return 0; |
832 | } | |
833 | ||
834 | int | |
835 | magic_setpack(sv,mg) | |
836 | SV* sv; | |
837 | MAGIC* mg; | |
838 | { | |
463ee0b2 | 839 | dSP; |
463ee0b2 | 840 | |
a0d0e21e LW |
841 | PUSHMARK(sp); |
842 | EXTEND(sp, 3); | |
843 | PUSHs(mg->mg_obj); | |
88e89b8a | 844 | if (mg->mg_ptr) { |
845 | if (mg->mg_len >= 0) | |
846 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
847 | else if (mg->mg_len == HEf_SVKEY) | |
848 | PUSHs((SV*)mg->mg_ptr); | |
849 | } | |
a0d0e21e LW |
850 | else if (mg->mg_type == 'p') |
851 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
852 | PUSHs(sv); |
853 | PUTBACK; | |
854 | ||
a0d0e21e | 855 | perl_call_method("STORE", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
856 | |
857 | return 0; | |
858 | } | |
859 | ||
860 | int | |
861 | magic_clearpack(sv,mg) | |
862 | SV* sv; | |
863 | MAGIC* mg; | |
864 | { | |
a0d0e21e LW |
865 | return magic_methpack(sv,mg,"DELETE"); |
866 | } | |
463ee0b2 | 867 | |
a0d0e21e LW |
868 | int magic_wipepack(sv,mg) |
869 | SV* sv; | |
870 | MAGIC* mg; | |
871 | { | |
872 | dSP; | |
463ee0b2 | 873 | |
a0d0e21e LW |
874 | PUSHMARK(sp); |
875 | XPUSHs(mg->mg_obj); | |
463ee0b2 | 876 | PUTBACK; |
463ee0b2 | 877 | |
a0d0e21e | 878 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
879 | |
880 | return 0; | |
881 | } | |
882 | ||
883 | int | |
884 | magic_nextpack(sv,mg,key) | |
885 | SV* sv; | |
886 | MAGIC* mg; | |
887 | SV* key; | |
888 | { | |
463ee0b2 | 889 | dSP; |
a0d0e21e | 890 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
891 | |
892 | ENTER; | |
a0d0e21e LW |
893 | SAVETMPS; |
894 | PUSHMARK(sp); | |
895 | EXTEND(sp, 2); | |
896 | PUSHs(mg->mg_obj); | |
463ee0b2 LW |
897 | if (SvOK(key)) |
898 | PUSHs(key); | |
899 | PUTBACK; | |
900 | ||
a0d0e21e LW |
901 | if (perl_call_method(meth, G_SCALAR)) |
902 | sv_setsv(key, *stack_sp--); | |
463ee0b2 | 903 | |
a0d0e21e LW |
904 | FREETMPS; |
905 | LEAVE; | |
79072805 LW |
906 | return 0; |
907 | } | |
908 | ||
909 | int | |
a0d0e21e LW |
910 | magic_existspack(sv,mg) |
911 | SV* sv; | |
912 | MAGIC* mg; | |
913 | { | |
914 | return magic_methpack(sv,mg,"EXISTS"); | |
915 | } | |
916 | ||
917 | int | |
79072805 LW |
918 | magic_setdbline(sv,mg) |
919 | SV* sv; | |
920 | MAGIC* mg; | |
921 | { | |
922 | OP *o; | |
923 | I32 i; | |
924 | GV* gv; | |
925 | SV** svp; | |
926 | ||
927 | gv = DBline; | |
928 | i = SvTRUE(sv); | |
188ea221 CS |
929 | svp = av_fetch(GvAV(gv), |
930 | atoi(MgPV(mg)), FALSE); | |
8990e307 | 931 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 932 | o->op_private = i; |
79072805 LW |
933 | else |
934 | warn("Can't break at that line\n"); | |
935 | return 0; | |
936 | } | |
937 | ||
938 | int | |
939 | magic_getarylen(sv,mg) | |
940 | SV* sv; | |
941 | MAGIC* mg; | |
942 | { | |
a0d0e21e | 943 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 LW |
944 | return 0; |
945 | } | |
946 | ||
947 | int | |
948 | magic_setarylen(sv,mg) | |
949 | SV* sv; | |
950 | MAGIC* mg; | |
951 | { | |
a0d0e21e LW |
952 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
953 | return 0; | |
954 | } | |
955 | ||
956 | int | |
957 | magic_getpos(sv,mg) | |
958 | SV* sv; | |
959 | MAGIC* mg; | |
960 | { | |
961 | SV* lsv = LvTARG(sv); | |
962 | ||
963 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
964 | mg = mg_find(lsv, 'g'); | |
965 | if (mg && mg->mg_len >= 0) { | |
966 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); | |
967 | return 0; | |
968 | } | |
969 | } | |
970 | (void)SvOK_off(sv); | |
971 | return 0; | |
972 | } | |
973 | ||
974 | int | |
975 | magic_setpos(sv,mg) | |
976 | SV* sv; | |
977 | MAGIC* mg; | |
978 | { | |
979 | SV* lsv = LvTARG(sv); | |
980 | SSize_t pos; | |
981 | STRLEN len; | |
982 | ||
983 | mg = 0; | |
984 | ||
985 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
986 | mg = mg_find(lsv, 'g'); | |
987 | if (!mg) { | |
988 | if (!SvOK(sv)) | |
989 | return 0; | |
990 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
991 | mg = mg_find(lsv, 'g'); | |
992 | } | |
993 | else if (!SvOK(sv)) { | |
994 | mg->mg_len = -1; | |
995 | return 0; | |
996 | } | |
997 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
998 | ||
999 | pos = SvIV(sv) - curcop->cop_arybase; | |
1000 | if (pos < 0) { | |
1001 | pos += len; | |
1002 | if (pos < 0) | |
1003 | pos = 0; | |
1004 | } | |
1005 | else if (pos > len) | |
1006 | pos = len; | |
1007 | mg->mg_len = pos; | |
1008 | ||
79072805 LW |
1009 | return 0; |
1010 | } | |
1011 | ||
1012 | int | |
1013 | magic_getglob(sv,mg) | |
1014 | SV* sv; | |
1015 | MAGIC* mg; | |
1016 | { | |
8646b087 | 1017 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1018 | SvFAKE_off(sv); | |
946ec16e | 1019 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1020 | SvFAKE_on(sv); |
1021 | } | |
1022 | else | |
946ec16e | 1023 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1024 | return 0; |
1025 | } | |
1026 | ||
1027 | int | |
1028 | magic_setglob(sv,mg) | |
1029 | SV* sv; | |
1030 | MAGIC* mg; | |
1031 | { | |
1032 | register char *s; | |
1033 | GV* gv; | |
1034 | ||
1035 | if (!SvOK(sv)) | |
1036 | return 0; | |
463ee0b2 | 1037 | s = SvPV(sv, na); |
79072805 LW |
1038 | if (*s == '*' && s[1]) |
1039 | s++; | |
85e6fe83 | 1040 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1041 | if (sv == (SV*)gv) |
1042 | return 0; | |
1043 | if (GvGP(sv)) | |
88e89b8a | 1044 | gp_free((GV*)sv); |
79072805 LW |
1045 | GvGP(sv) = gp_ref(GvGP(gv)); |
1046 | if (!GvAV(gv)) | |
1047 | gv_AVadd(gv); | |
1048 | if (!GvHV(gv)) | |
1049 | gv_HVadd(gv); | |
a0d0e21e LW |
1050 | if (!GvIOp(gv)) |
1051 | GvIOp(gv) = newIO(); | |
79072805 LW |
1052 | return 0; |
1053 | } | |
1054 | ||
1055 | int | |
1056 | magic_setsubstr(sv,mg) | |
1057 | SV* sv; | |
1058 | MAGIC* mg; | |
1059 | { | |
8990e307 LW |
1060 | STRLEN len; |
1061 | char *tmps = SvPV(sv,len); | |
1062 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1063 | return 0; |
1064 | } | |
1065 | ||
1066 | int | |
463ee0b2 LW |
1067 | magic_gettaint(sv,mg) |
1068 | SV* sv; | |
1069 | MAGIC* mg; | |
1070 | { | |
bbce6d69 | 1071 | TAINT_IF((mg->mg_len & 1) || |
1072 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1073 | return 0; |
1074 | } | |
1075 | ||
1076 | int | |
1077 | magic_settaint(sv,mg) | |
1078 | SV* sv; | |
1079 | MAGIC* mg; | |
1080 | { | |
748a9306 LW |
1081 | if (localizing) { |
1082 | if (localizing == 1) | |
1083 | mg->mg_len <<= 1; | |
1084 | else | |
1085 | mg->mg_len >>= 1; | |
a0d0e21e | 1086 | } |
748a9306 LW |
1087 | else if (tainted) |
1088 | mg->mg_len |= 1; | |
1089 | else | |
1090 | mg->mg_len &= ~1; | |
463ee0b2 LW |
1091 | return 0; |
1092 | } | |
1093 | ||
1094 | int | |
79072805 LW |
1095 | magic_setvec(sv,mg) |
1096 | SV* sv; | |
1097 | MAGIC* mg; | |
1098 | { | |
1099 | do_vecset(sv); /* XXX slurp this routine */ | |
1100 | return 0; | |
1101 | } | |
1102 | ||
1103 | int | |
93a17b20 LW |
1104 | magic_setmglob(sv,mg) |
1105 | SV* sv; | |
1106 | MAGIC* mg; | |
1107 | { | |
a0d0e21e | 1108 | mg->mg_len = -1; |
c6496cc7 | 1109 | SvSCREAM_off(sv); |
93a17b20 LW |
1110 | return 0; |
1111 | } | |
1112 | ||
1113 | int | |
79072805 LW |
1114 | magic_setbm(sv,mg) |
1115 | SV* sv; | |
1116 | MAGIC* mg; | |
1117 | { | |
463ee0b2 | 1118 | sv_unmagic(sv, 'B'); |
79072805 LW |
1119 | SvVALID_off(sv); |
1120 | return 0; | |
1121 | } | |
1122 | ||
1123 | int | |
55497cff | 1124 | magic_setfm(sv,mg) |
1125 | SV* sv; | |
1126 | MAGIC* mg; | |
1127 | { | |
1128 | sv_unmagic(sv, 'f'); | |
1129 | SvCOMPILED_off(sv); | |
1130 | return 0; | |
1131 | } | |
1132 | ||
1133 | int | |
79072805 LW |
1134 | magic_setuvar(sv,mg) |
1135 | SV* sv; | |
1136 | MAGIC* mg; | |
1137 | { | |
1138 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1139 | ||
1140 | if (uf && uf->uf_set) | |
1141 | (*uf->uf_set)(uf->uf_index, sv); | |
1142 | return 0; | |
1143 | } | |
1144 | ||
1145 | int | |
bbce6d69 | 1146 | magic_setcollxfrm(sv,mg) |
1147 | SV* sv; | |
1148 | MAGIC* mg; | |
1149 | { | |
1150 | /* | |
1151 | * René Descartes said "I think not." | |
1152 | * and vanished with a faint plop. | |
1153 | */ | |
1154 | sv_unmagic(sv, 'o'); | |
1155 | return 0; | |
1156 | } | |
1157 | ||
1158 | int | |
79072805 LW |
1159 | magic_set(sv,mg) |
1160 | SV* sv; | |
1161 | MAGIC* mg; | |
1162 | { | |
1163 | register char *s; | |
1164 | I32 i; | |
8990e307 | 1165 | STRLEN len; |
79072805 | 1166 | switch (*mg->mg_ptr) { |
748a9306 LW |
1167 | case '\001': /* ^A */ |
1168 | sv_setsv(bodytarget, sv); | |
1169 | break; | |
79072805 | 1170 | case '\004': /* ^D */ |
8990e307 | 1171 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1172 | DEBUG_x(dump_all()); |
1173 | break; | |
28f23441 | 1174 | case '\005': /* ^E */ |
1175 | #ifdef VMS | |
1176 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1177 | #else | |
1178 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv),4); /* will anyone ever use this? */ | |
1179 | #endif | |
1180 | break; | |
79072805 | 1181 | case '\006': /* ^F */ |
463ee0b2 | 1182 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1183 | break; |
a0d0e21e LW |
1184 | case '\010': /* ^H */ |
1185 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1186 | break; | |
79072805 LW |
1187 | case '\t': /* ^I */ |
1188 | if (inplace) | |
1189 | Safefree(inplace); | |
1190 | if (SvOK(sv)) | |
a0d0e21e | 1191 | inplace = savepv(SvPV(sv,na)); |
79072805 LW |
1192 | else |
1193 | inplace = Nullch; | |
1194 | break; | |
28f23441 | 1195 | case '\017': /* ^O */ |
1196 | if (osname) | |
1197 | Safefree(osname); | |
1198 | if (SvOK(sv)) | |
1199 | osname = savepv(SvPV(sv,na)); | |
1200 | else | |
1201 | osname = Nullch; | |
1202 | break; | |
79072805 | 1203 | case '\020': /* ^P */ |
463ee0b2 | 1204 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1205 | if (i != perldb) { |
1206 | if (perldb) | |
1207 | oldlastpm = curpm; | |
1208 | else | |
1209 | curpm = oldlastpm; | |
1210 | } | |
1211 | perldb = i; | |
1212 | break; | |
1213 | case '\024': /* ^T */ | |
88e89b8a | 1214 | #ifdef BIG_TIME |
1215 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); | |
1216 | #else | |
85e6fe83 | 1217 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1218 | #endif |
79072805 LW |
1219 | break; |
1220 | case '\027': /* ^W */ | |
463ee0b2 | 1221 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1222 | break; |
1223 | case '.': | |
748a9306 LW |
1224 | if (localizing) { |
1225 | if (localizing == 1) | |
1226 | save_sptr((SV**)&last_in_gv); | |
1227 | } | |
88e89b8a | 1228 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e | 1229 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 LW |
1230 | break; |
1231 | case '^': | |
a0d0e21e LW |
1232 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1233 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1234 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1235 | break; |
1236 | case '~': | |
a0d0e21e LW |
1237 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1238 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1239 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1240 | break; |
1241 | case '=': | |
a0d0e21e | 1242 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1243 | break; |
1244 | case '-': | |
a0d0e21e LW |
1245 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1246 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) | |
1247 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; | |
79072805 LW |
1248 | break; |
1249 | case '%': | |
a0d0e21e | 1250 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1251 | break; |
1252 | case '|': | |
a0d0e21e | 1253 | IoFLAGS(GvIOp(defoutgv)) &= ~IOf_FLUSH; |
463ee0b2 | 1254 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) != 0) { |
a0d0e21e | 1255 | IoFLAGS(GvIOp(defoutgv)) |= IOf_FLUSH; |
79072805 LW |
1256 | } |
1257 | break; | |
1258 | case '*': | |
463ee0b2 | 1259 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1260 | multiline = (i != 0); |
1261 | break; | |
1262 | case '/': | |
c07a80fd | 1263 | SvREFCNT_dec(nrs); |
1264 | nrs = newSVsv(sv); | |
1265 | SvREFCNT_dec(rs); | |
1266 | rs = SvREFCNT_inc(nrs); | |
79072805 LW |
1267 | break; |
1268 | case '\\': | |
1269 | if (ors) | |
1270 | Safefree(ors); | |
a0d0e21e | 1271 | ors = savepv(SvPV(sv,orslen)); |
79072805 LW |
1272 | break; |
1273 | case ',': | |
1274 | if (ofs) | |
1275 | Safefree(ofs); | |
a0d0e21e | 1276 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 LW |
1277 | break; |
1278 | case '#': | |
1279 | if (ofmt) | |
1280 | Safefree(ofmt); | |
a0d0e21e | 1281 | ofmt = savepv(SvPV(sv,na)); |
79072805 LW |
1282 | break; |
1283 | case '[': | |
a0d0e21e | 1284 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1285 | break; |
1286 | case '?': | |
748a9306 | 1287 | statusvalue = FIXSTATUS(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1288 | break; |
1289 | case '!': | |
28f23441 | 1290 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv),SvIV(sv) == EVMSERR ? 4 : vaxc$errno); /* will anyone ever use this? */ |
79072805 LW |
1291 | break; |
1292 | case '<': | |
463ee0b2 | 1293 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1294 | if (delaymagic) { |
1295 | delaymagic |= DM_RUID; | |
1296 | break; /* don't do magic till later */ | |
1297 | } | |
1298 | #ifdef HAS_SETRUID | |
85e6fe83 | 1299 | (void)setruid((Uid_t)uid); |
79072805 LW |
1300 | #else |
1301 | #ifdef HAS_SETREUID | |
85e6fe83 | 1302 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 | 1303 | #else |
85e6fe83 LW |
1304 | #ifdef HAS_SETRESUID |
1305 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); | |
79072805 LW |
1306 | #else |
1307 | if (uid == euid) /* special case $< = $> */ | |
1308 | (void)setuid(uid); | |
a0d0e21e LW |
1309 | else { |
1310 | uid = (I32)getuid(); | |
463ee0b2 | 1311 | croak("setruid() not implemented"); |
a0d0e21e | 1312 | } |
79072805 LW |
1313 | #endif |
1314 | #endif | |
85e6fe83 | 1315 | #endif |
748a9306 | 1316 | uid = (I32)getuid(); |
4633a7c4 | 1317 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1318 | break; |
1319 | case '>': | |
463ee0b2 | 1320 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1321 | if (delaymagic) { |
1322 | delaymagic |= DM_EUID; | |
1323 | break; /* don't do magic till later */ | |
1324 | } | |
1325 | #ifdef HAS_SETEUID | |
85e6fe83 | 1326 | (void)seteuid((Uid_t)euid); |
79072805 LW |
1327 | #else |
1328 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1329 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1330 | #else | |
1331 | #ifdef HAS_SETRESUID | |
1332 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); | |
79072805 LW |
1333 | #else |
1334 | if (euid == uid) /* special case $> = $< */ | |
1335 | setuid(euid); | |
a0d0e21e LW |
1336 | else { |
1337 | euid = (I32)geteuid(); | |
463ee0b2 | 1338 | croak("seteuid() not implemented"); |
a0d0e21e | 1339 | } |
79072805 LW |
1340 | #endif |
1341 | #endif | |
85e6fe83 | 1342 | #endif |
79072805 | 1343 | euid = (I32)geteuid(); |
4633a7c4 | 1344 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1345 | break; |
1346 | case '(': | |
463ee0b2 | 1347 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1348 | if (delaymagic) { |
1349 | delaymagic |= DM_RGID; | |
1350 | break; /* don't do magic till later */ | |
1351 | } | |
1352 | #ifdef HAS_SETRGID | |
85e6fe83 | 1353 | (void)setrgid((Gid_t)gid); |
79072805 LW |
1354 | #else |
1355 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1356 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1357 | #else | |
1358 | #ifdef HAS_SETRESGID | |
1359 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); | |
79072805 LW |
1360 | #else |
1361 | if (gid == egid) /* special case $( = $) */ | |
1362 | (void)setgid(gid); | |
748a9306 LW |
1363 | else { |
1364 | gid = (I32)getgid(); | |
463ee0b2 | 1365 | croak("setrgid() not implemented"); |
748a9306 | 1366 | } |
79072805 LW |
1367 | #endif |
1368 | #endif | |
85e6fe83 | 1369 | #endif |
79072805 | 1370 | gid = (I32)getgid(); |
4633a7c4 | 1371 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1372 | break; |
1373 | case ')': | |
463ee0b2 | 1374 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1375 | if (delaymagic) { |
1376 | delaymagic |= DM_EGID; | |
1377 | break; /* don't do magic till later */ | |
1378 | } | |
1379 | #ifdef HAS_SETEGID | |
85e6fe83 | 1380 | (void)setegid((Gid_t)egid); |
79072805 LW |
1381 | #else |
1382 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1383 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1384 | #else | |
1385 | #ifdef HAS_SETRESGID | |
1386 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); | |
79072805 LW |
1387 | #else |
1388 | if (egid == gid) /* special case $) = $( */ | |
1389 | (void)setgid(egid); | |
748a9306 LW |
1390 | else { |
1391 | egid = (I32)getegid(); | |
463ee0b2 | 1392 | croak("setegid() not implemented"); |
748a9306 | 1393 | } |
79072805 LW |
1394 | #endif |
1395 | #endif | |
85e6fe83 | 1396 | #endif |
79072805 | 1397 | egid = (I32)getegid(); |
4633a7c4 | 1398 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1399 | break; |
1400 | case ':': | |
a0d0e21e | 1401 | chopset = SvPV_force(sv,na); |
79072805 LW |
1402 | break; |
1403 | case '0': | |
1404 | if (!origalen) { | |
1405 | s = origargv[0]; | |
1406 | s += strlen(s); | |
1407 | /* See if all the arguments are contiguous in memory */ | |
1408 | for (i = 1; i < origargc; i++) { | |
1409 | if (origargv[i] == s + 1) | |
1410 | s += strlen(++s); /* this one is ok too */ | |
1411 | } | |
bbce6d69 | 1412 | /* can grab env area too? */ |
1413 | if (origenviron && origenviron[0] == s + 1) { | |
79072805 LW |
1414 | my_setenv("NoNeSuCh", Nullch); |
1415 | /* force copy of environment */ | |
1416 | for (i = 0; origenviron[i]; i++) | |
1417 | if (origenviron[i] == s + 1) | |
1418 | s += strlen(++s); | |
1419 | } | |
1420 | origalen = s - origargv[0]; | |
1421 | } | |
a0d0e21e | 1422 | s = SvPV_force(sv,len); |
8990e307 | 1423 | i = len; |
79072805 LW |
1424 | if (i >= origalen) { |
1425 | i = origalen; | |
1426 | SvCUR_set(sv, i); | |
1427 | *SvEND(sv) = '\0'; | |
1428 | Copy(s, origargv[0], i, char); | |
1429 | } | |
1430 | else { | |
1431 | Copy(s, origargv[0], i, char); | |
1432 | s = origargv[0]+i; | |
1433 | *s++ = '\0'; | |
1434 | while (++i < origalen) | |
8990e307 LW |
1435 | *s++ = ' '; |
1436 | s = origargv[0]+i; | |
ed6116ce | 1437 | for (i = 1; i < origargc; i++) |
8990e307 | 1438 | origargv[i] = Nullch; |
79072805 LW |
1439 | } |
1440 | break; | |
1441 | } | |
1442 | return 0; | |
1443 | } | |
1444 | ||
1445 | I32 | |
1446 | whichsig(sig) | |
1447 | char *sig; | |
1448 | { | |
1449 | register char **sigv; | |
1450 | ||
1451 | for (sigv = sig_name+1; *sigv; sigv++) | |
1452 | if (strEQ(sig,*sigv)) | |
8e07c86e | 1453 | return sig_num[sigv - sig_name]; |
79072805 LW |
1454 | #ifdef SIGCLD |
1455 | if (strEQ(sig,"CHLD")) | |
1456 | return SIGCLD; | |
1457 | #endif | |
1458 | #ifdef SIGCHLD | |
1459 | if (strEQ(sig,"CLD")) | |
1460 | return SIGCHLD; | |
1461 | #endif | |
1462 | return 0; | |
1463 | } | |
1464 | ||
ecfc5424 | 1465 | Signal_t |
79072805 | 1466 | sighandler(sig) |
a0d0e21e | 1467 | int sig; |
79072805 LW |
1468 | { |
1469 | dSP; | |
1470 | GV *gv; | |
a0d0e21e | 1471 | HV *st; |
79072805 LW |
1472 | SV *sv; |
1473 | CV *cv; | |
79072805 | 1474 | AV *oldstack; |
760ac839 LW |
1475 | |
1476 | if(!psig_ptr[sig]) | |
1477 | die("Signal SIG%s received, but no signal handler set.\n", | |
1478 | sig_name[sig]); | |
79072805 | 1479 | |
88e89b8a | 1480 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); |
a0d0e21e | 1481 | if (!cv || !CvROOT(cv)) { |
79072805 LW |
1482 | if (dowarn) |
1483 | warn("SIG%s handler \"%s\" not defined.\n", | |
88e89b8a | 1484 | sig_name[sig], GvENAME(gv) ); |
79072805 LW |
1485 | return; |
1486 | } | |
1487 | ||
88e89b8a | 1488 | oldstack = curstack; |
1489 | if (curstack != signalstack) | |
a0d0e21e | 1490 | AvFILL(signalstack) = 0; |
88e89b8a | 1491 | SWITCHSTACK(curstack, signalstack); |
79072805 | 1492 | |
88e89b8a | 1493 | if(psig_name[sig]) |
1494 | sv = SvREFCNT_inc(psig_name[sig]); | |
1495 | else { | |
1496 | sv = sv_newmortal(); | |
1497 | sv_setpv(sv,sig_name[sig]); | |
1498 | } | |
a0d0e21e | 1499 | PUSHMARK(sp); |
79072805 | 1500 | PUSHs(sv); |
79072805 | 1501 | PUTBACK; |
a0d0e21e LW |
1502 | |
1503 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 LW |
1504 | |
1505 | SWITCHSTACK(signalstack, oldstack); | |
79072805 LW |
1506 | |
1507 | return; | |
1508 | } |