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) \ |
30 | if ((rx)->exec_tainted) { \ | |
31 | SvTAINTED_on(sv); \ | |
32 | } else \ | |
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 | ||
47 | static MGS * | |
48 | save_magic(sv) | |
49 | SV* sv; | |
50 | { | |
51 | MGS* mgs; | |
52 | ||
53 | assert(SvMAGICAL(sv)); | |
54 | ||
55 | mgs = (MGS*)safemalloc(sizeof(MGS)); | |
56 | mgs->mgs_sv = sv; | |
57 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
58 | SAVEDESTRUCTOR(restore_magic, mgs); | |
59 | ||
60 | SvMAGICAL_off(sv); | |
61 | SvREADONLY_off(sv); | |
62 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
63 | ||
64 | return mgs; | |
65 | } | |
66 | ||
67 | static void | |
68 | restore_magic(p) | |
69 | void* p; | |
70 | { | |
71 | MGS *mgs = (MGS*)p; | |
72 | SV* sv = mgs->mgs_sv; | |
73 | ||
74 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
75 | { | |
76 | if (mgs->mgs_flags) | |
77 | SvFLAGS(sv) |= mgs->mgs_flags; | |
78 | else | |
79 | mg_magical(sv); | |
80 | if (SvGMAGICAL(sv)) | |
81 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
82 | } | |
83 | ||
e6d9441c | 84 | Safefree(mgs); |
c07a80fd | 85 | } |
86 | ||
8e07c86e | 87 | |
8990e307 LW |
88 | void |
89 | mg_magical(sv) | |
90 | SV* sv; | |
91 | { | |
92 | MAGIC* mg; | |
93 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
94 | MGVTBL* vtbl = mg->mg_virtual; | |
95 | if (vtbl) { | |
a0d0e21e | 96 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
97 | SvGMAGICAL_on(sv); |
98 | if (vtbl->svt_set) | |
99 | SvSMAGICAL_on(sv); | |
100 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) | |
101 | SvRMAGICAL_on(sv); | |
102 | } | |
103 | } | |
104 | } | |
105 | ||
79072805 LW |
106 | int |
107 | mg_get(sv) | |
108 | SV* sv; | |
109 | { | |
c07a80fd | 110 | MGS* mgs; |
79072805 | 111 | MAGIC* mg; |
c6496cc7 | 112 | MAGIC** mgp; |
760ac839 | 113 | int mgp_valid = 0; |
463ee0b2 | 114 | |
c07a80fd | 115 | ENTER; |
116 | mgs = save_magic(sv); | |
463ee0b2 | 117 | |
c6496cc7 | 118 | mgp = &SvMAGIC(sv); |
119 | while ((mg = *mgp) != 0) { | |
79072805 | 120 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e | 121 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
79072805 | 122 | (*vtbl->svt_get)(sv, mg); |
c6496cc7 | 123 | /* Ignore this magic if it's been deleted */ |
760ac839 | 124 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && (mg->mg_flags & MGf_GSKIP)) |
c07a80fd | 125 | mgs->mgs_flags = 0; |
a0d0e21e | 126 | } |
c6496cc7 | 127 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 128 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 129 | mgp = &mg->mg_moremagic; |
760ac839 LW |
130 | mgp_valid = 1; |
131 | } | |
132 | else | |
133 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 134 | } |
463ee0b2 | 135 | |
c07a80fd | 136 | LEAVE; |
79072805 LW |
137 | return 0; |
138 | } | |
139 | ||
140 | int | |
141 | mg_set(sv) | |
142 | SV* sv; | |
143 | { | |
c07a80fd | 144 | MGS* mgs; |
79072805 | 145 | MAGIC* mg; |
463ee0b2 LW |
146 | MAGIC* nextmg; |
147 | ||
c07a80fd | 148 | ENTER; |
149 | mgs = save_magic(sv); | |
463ee0b2 LW |
150 | |
151 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 152 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 153 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
154 | if (mg->mg_flags & MGf_GSKIP) { |
155 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
c07a80fd | 156 | mgs->mgs_flags = 0; |
a0d0e21e | 157 | } |
79072805 LW |
158 | if (vtbl && vtbl->svt_set) |
159 | (*vtbl->svt_set)(sv, mg); | |
160 | } | |
463ee0b2 | 161 | |
c07a80fd | 162 | LEAVE; |
79072805 LW |
163 | return 0; |
164 | } | |
165 | ||
166 | U32 | |
167 | mg_len(sv) | |
168 | SV* sv; | |
169 | { | |
170 | MAGIC* mg; | |
748a9306 | 171 | char *junk; |
463ee0b2 | 172 | STRLEN len; |
463ee0b2 | 173 | |
79072805 LW |
174 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
175 | MGVTBL* vtbl = mg->mg_virtual; | |
85e6fe83 | 176 | if (vtbl && vtbl->svt_len) { |
c07a80fd | 177 | ENTER; |
178 | save_magic(sv); | |
a0d0e21e | 179 | /* omit MGf_GSKIP -- not changed here */ |
85e6fe83 | 180 | len = (*vtbl->svt_len)(sv, mg); |
c07a80fd | 181 | LEAVE; |
85e6fe83 LW |
182 | return len; |
183 | } | |
184 | } | |
185 | ||
748a9306 | 186 | junk = SvPV(sv, len); |
463ee0b2 | 187 | return len; |
79072805 LW |
188 | } |
189 | ||
190 | int | |
191 | mg_clear(sv) | |
192 | SV* sv; | |
193 | { | |
194 | MAGIC* mg; | |
463ee0b2 | 195 | |
c07a80fd | 196 | ENTER; |
197 | save_magic(sv); | |
463ee0b2 | 198 | |
79072805 LW |
199 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
200 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
201 | /* omit GSKIP -- never set here */ |
202 | ||
79072805 LW |
203 | if (vtbl && vtbl->svt_clear) |
204 | (*vtbl->svt_clear)(sv, mg); | |
205 | } | |
463ee0b2 | 206 | |
c07a80fd | 207 | LEAVE; |
79072805 LW |
208 | return 0; |
209 | } | |
210 | ||
93a17b20 LW |
211 | MAGIC* |
212 | mg_find(sv, type) | |
213 | SV* sv; | |
a0d0e21e | 214 | int type; |
93a17b20 LW |
215 | { |
216 | MAGIC* mg; | |
93a17b20 LW |
217 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
218 | if (mg->mg_type == type) | |
219 | return mg; | |
220 | } | |
221 | return 0; | |
222 | } | |
223 | ||
79072805 | 224 | int |
463ee0b2 | 225 | mg_copy(sv, nsv, key, klen) |
79072805 | 226 | SV* sv; |
463ee0b2 LW |
227 | SV* nsv; |
228 | char *key; | |
88e89b8a | 229 | I32 klen; |
79072805 | 230 | { |
463ee0b2 | 231 | int count = 0; |
79072805 | 232 | MAGIC* mg; |
463ee0b2 LW |
233 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
234 | if (isUPPER(mg->mg_type)) { | |
a0d0e21e | 235 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 236 | count++; |
79072805 | 237 | } |
79072805 | 238 | } |
463ee0b2 | 239 | return count; |
79072805 LW |
240 | } |
241 | ||
242 | int | |
463ee0b2 | 243 | mg_free(sv) |
79072805 LW |
244 | SV* sv; |
245 | { | |
246 | MAGIC* mg; | |
247 | MAGIC* moremagic; | |
248 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
249 | MGVTBL* vtbl = mg->mg_virtual; | |
250 | moremagic = mg->mg_moremagic; | |
251 | if (vtbl && vtbl->svt_free) | |
252 | (*vtbl->svt_free)(sv, mg); | |
93a17b20 | 253 | if (mg->mg_ptr && mg->mg_type != 'g') |
88e89b8a | 254 | if (mg->mg_len >= 0) |
255 | Safefree(mg->mg_ptr); | |
256 | else if (mg->mg_len == HEf_SVKEY) | |
257 | SvREFCNT_dec((SV*)mg->mg_ptr); | |
85e6fe83 | 258 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 259 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
260 | Safefree(mg); |
261 | } | |
262 | SvMAGIC(sv) = 0; | |
263 | return 0; | |
264 | } | |
265 | ||
266 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
267 | #include <signal.h> | |
268 | #endif | |
269 | ||
93a17b20 LW |
270 | U32 |
271 | magic_len(sv, mg) | |
272 | SV *sv; | |
273 | MAGIC *mg; | |
274 | { | |
275 | register I32 paren; | |
276 | register char *s; | |
277 | register I32 i; | |
bbce6d69 | 278 | register REGEXP *rx; |
748a9306 | 279 | char *t; |
93a17b20 LW |
280 | |
281 | switch (*mg->mg_ptr) { | |
282 | case '1': case '2': case '3': case '4': | |
283 | case '5': case '6': case '7': case '8': case '9': case '&': | |
bbce6d69 | 284 | if (curpm && (rx = curpm->op_pmregexp)) { |
93a17b20 LW |
285 | paren = atoi(mg->mg_ptr); |
286 | getparen: | |
bbce6d69 | 287 | if (paren <= rx->nparens && |
288 | (s = rx->startp[paren]) && | |
289 | (t = rx->endp[paren])) | |
290 | { | |
748a9306 | 291 | i = t - s; |
bbce6d69 | 292 | if (i >= 0) { |
293 | TAINT_IF(rx->exec_tainted); | |
93a17b20 | 294 | return i; |
bbce6d69 | 295 | } |
93a17b20 | 296 | } |
93a17b20 | 297 | } |
748a9306 | 298 | return 0; |
93a17b20 LW |
299 | break; |
300 | case '+': | |
bbce6d69 | 301 | if (curpm && (rx = curpm->op_pmregexp)) { |
302 | paren = rx->lastparen; | |
a0d0e21e LW |
303 | if (!paren) |
304 | return 0; | |
93a17b20 LW |
305 | goto getparen; |
306 | } | |
748a9306 | 307 | return 0; |
93a17b20 LW |
308 | break; |
309 | case '`': | |
bbce6d69 | 310 | if (curpm && (rx = curpm->op_pmregexp)) { |
311 | if ((s = rx->subbeg)) { | |
312 | i = rx->startp[0] - s; | |
313 | if (i >= 0) { | |
314 | TAINT_IF(rx->exec_tainted); | |
93a17b20 | 315 | return i; |
bbce6d69 | 316 | } |
93a17b20 | 317 | } |
93a17b20 | 318 | } |
748a9306 | 319 | return 0; |
93a17b20 | 320 | case '\'': |
bbce6d69 | 321 | if (curpm && (rx = curpm->op_pmregexp)) { |
322 | if ((s = rx->endp[0])) { | |
323 | TAINT_IF(rx->exec_tainted); | |
324 | return (STRLEN) (rx->subend - s); | |
93a17b20 | 325 | } |
93a17b20 | 326 | } |
748a9306 | 327 | return 0; |
93a17b20 LW |
328 | case ',': |
329 | return (STRLEN)ofslen; | |
330 | case '\\': | |
331 | return (STRLEN)orslen; | |
332 | } | |
333 | magic_get(sv,mg); | |
334 | if (!SvPOK(sv) && SvNIOK(sv)) | |
463ee0b2 | 335 | sv_2pv(sv, &na); |
93a17b20 LW |
336 | if (SvPOK(sv)) |
337 | return SvCUR(sv); | |
338 | return 0; | |
339 | } | |
340 | ||
79072805 LW |
341 | int |
342 | magic_get(sv, mg) | |
343 | SV *sv; | |
344 | MAGIC *mg; | |
345 | { | |
346 | register I32 paren; | |
347 | register char *s; | |
348 | register I32 i; | |
bbce6d69 | 349 | register REGEXP *rx; |
748a9306 | 350 | char *t; |
79072805 LW |
351 | |
352 | switch (*mg->mg_ptr) { | |
748a9306 LW |
353 | case '\001': /* ^A */ |
354 | sv_setsv(sv, bodytarget); | |
355 | break; | |
79072805 | 356 | case '\004': /* ^D */ |
188ea221 | 357 | sv_setiv(sv, (IV)(debug & 32767)); |
79072805 | 358 | break; |
28f23441 | 359 | case '\005': /* ^E */ |
360 | #ifdef VMS | |
361 | { | |
362 | # include <descrip.h> | |
363 | # include <starlet.h> | |
364 | char msg[255]; | |
365 | $DESCRIPTOR(msgdsc,msg); | |
946ec16e | 366 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 | 367 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
368 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
369 | else | |
370 | sv_setpv(sv,""); | |
371 | } | |
372 | #else | |
88e89b8a | 373 | #ifdef OS2 |
946ec16e | 374 | sv_setnv(sv, (double)Perl_rc); |
88e89b8a | 375 | sv_setpv(sv, os2error(Perl_rc)); |
376 | #else | |
946ec16e | 377 | sv_setnv(sv, (double)errno); |
28f23441 | 378 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
379 | #endif | |
88e89b8a | 380 | #endif |
946ec16e | 381 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 382 | break; |
79072805 | 383 | case '\006': /* ^F */ |
188ea221 | 384 | sv_setiv(sv, (IV)maxsysfd); |
79072805 | 385 | break; |
a0d0e21e | 386 | case '\010': /* ^H */ |
188ea221 | 387 | sv_setiv(sv, (IV)hints); |
a0d0e21e | 388 | break; |
79072805 LW |
389 | case '\t': /* ^I */ |
390 | if (inplace) | |
391 | sv_setpv(sv, inplace); | |
392 | else | |
188ea221 | 393 | sv_setsv(sv, &sv_undef); |
79072805 | 394 | break; |
28f23441 | 395 | case '\017': /* ^O */ |
188ea221 | 396 | sv_setpv(sv, osname); |
28f23441 | 397 | break; |
79072805 | 398 | case '\020': /* ^P */ |
188ea221 | 399 | sv_setiv(sv, (IV)perldb); |
79072805 LW |
400 | break; |
401 | case '\024': /* ^T */ | |
88e89b8a | 402 | #ifdef BIG_TIME |
188ea221 | 403 | sv_setnv(sv, basetime); |
88e89b8a | 404 | #else |
188ea221 | 405 | sv_setiv(sv, (IV)basetime); |
88e89b8a | 406 | #endif |
79072805 LW |
407 | break; |
408 | case '\027': /* ^W */ | |
188ea221 | 409 | sv_setiv(sv, (IV)dowarn); |
79072805 LW |
410 | break; |
411 | case '1': case '2': case '3': case '4': | |
412 | case '5': case '6': case '7': case '8': case '9': case '&': | |
bbce6d69 | 413 | if (curpm && (rx = curpm->op_pmregexp)) { |
88e89b8a | 414 | paren = atoi(GvENAME((GV*)mg->mg_obj)); |
79072805 | 415 | getparen: |
bbce6d69 | 416 | if (paren <= rx->nparens && |
417 | (s = rx->startp[paren]) && | |
418 | (t = rx->endp[paren])) | |
419 | { | |
748a9306 LW |
420 | i = t - s; |
421 | if (i >= 0) { | |
79072805 | 422 | sv_setpvn(sv,s,i); |
bbce6d69 | 423 | TAINT_FROM_REGEX(sv,rx); |
748a9306 LW |
424 | break; |
425 | } | |
79072805 | 426 | } |
79072805 | 427 | } |
748a9306 | 428 | sv_setsv(sv,&sv_undef); |
79072805 LW |
429 | break; |
430 | case '+': | |
bbce6d69 | 431 | if (curpm && (rx = curpm->op_pmregexp)) { |
432 | paren = rx->lastparen; | |
a0d0e21e LW |
433 | if (paren) |
434 | goto getparen; | |
79072805 | 435 | } |
748a9306 | 436 | sv_setsv(sv,&sv_undef); |
79072805 LW |
437 | break; |
438 | case '`': | |
bbce6d69 | 439 | if (curpm && (rx = curpm->op_pmregexp)) { |
440 | if ((s = rx->subbeg)) { | |
441 | i = rx->startp[0] - s; | |
748a9306 | 442 | if (i >= 0) { |
79072805 | 443 | sv_setpvn(sv,s,i); |
bbce6d69 | 444 | TAINT_FROM_REGEX(sv,rx); |
748a9306 LW |
445 | break; |
446 | } | |
79072805 | 447 | } |
79072805 | 448 | } |
748a9306 | 449 | sv_setsv(sv,&sv_undef); |
79072805 LW |
450 | break; |
451 | case '\'': | |
bbce6d69 | 452 | if (curpm && (rx = curpm->op_pmregexp)) { |
453 | if ((s = rx->endp[0])) { | |
454 | sv_setpvn(sv,s, rx->subend - s); | |
455 | TAINT_FROM_REGEX(sv,rx); | |
748a9306 | 456 | break; |
79072805 | 457 | } |
79072805 | 458 | } |
748a9306 | 459 | sv_setsv(sv,&sv_undef); |
79072805 LW |
460 | break; |
461 | case '.': | |
462 | #ifndef lint | |
a0d0e21e | 463 | if (GvIO(last_in_gv)) { |
188ea221 | 464 | sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv))); |
79072805 LW |
465 | } |
466 | #endif | |
467 | break; | |
468 | case '?': | |
188ea221 | 469 | sv_setiv(sv, (IV)statusvalue); |
79072805 LW |
470 | break; |
471 | case '^': | |
a0d0e21e | 472 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 LW |
473 | if (s) |
474 | sv_setpv(sv,s); | |
475 | else { | |
476 | sv_setpv(sv,GvENAME(defoutgv)); | |
477 | sv_catpv(sv,"_TOP"); | |
478 | } | |
479 | break; | |
480 | case '~': | |
a0d0e21e | 481 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 LW |
482 | if (!s) |
483 | s = GvENAME(defoutgv); | |
484 | sv_setpv(sv,s); | |
485 | break; | |
486 | #ifndef lint | |
487 | case '=': | |
188ea221 | 488 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 LW |
489 | break; |
490 | case '-': | |
188ea221 | 491 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 LW |
492 | break; |
493 | case '%': | |
188ea221 | 494 | sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv))); |
79072805 LW |
495 | break; |
496 | #endif | |
497 | case ':': | |
498 | break; | |
499 | case '/': | |
500 | break; | |
501 | case '[': | |
188ea221 | 502 | sv_setiv(sv, (IV)curcop->cop_arybase); |
79072805 LW |
503 | break; |
504 | case '|': | |
188ea221 | 505 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
506 | break; |
507 | case ',': | |
508 | sv_setpvn(sv,ofs,ofslen); | |
509 | break; | |
510 | case '\\': | |
511 | sv_setpvn(sv,ors,orslen); | |
512 | break; | |
513 | case '#': | |
514 | sv_setpv(sv,ofmt); | |
515 | break; | |
516 | case '!': | |
a5f75d66 | 517 | #ifdef VMS |
946ec16e | 518 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 519 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 520 | #else |
88e89b8a | 521 | { |
522 | int saveerrno = errno; | |
946ec16e | 523 | sv_setnv(sv, (double)errno); |
88e89b8a | 524 | #ifdef OS2 |
525 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
526 | else | |
a5f75d66 | 527 | #endif |
2304df62 | 528 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 529 | errno = saveerrno; |
530 | } | |
531 | #endif | |
946ec16e | 532 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
533 | break; |
534 | case '<': | |
188ea221 | 535 | sv_setiv(sv, (IV)uid); |
79072805 LW |
536 | break; |
537 | case '>': | |
188ea221 | 538 | sv_setiv(sv, (IV)euid); |
79072805 LW |
539 | break; |
540 | case '(': | |
188ea221 | 541 | sv_setiv(sv, (IV)gid); |
79072805 LW |
542 | s = buf; |
543 | (void)sprintf(s,"%d",(int)gid); | |
544 | goto add_groups; | |
545 | case ')': | |
188ea221 | 546 | sv_setiv(sv, (IV)egid); |
79072805 LW |
547 | s = buf; |
548 | (void)sprintf(s,"%d",(int)egid); | |
549 | add_groups: | |
550 | while (*s) s++; | |
551 | #ifdef HAS_GETGROUPS | |
79072805 | 552 | { |
a0d0e21e | 553 | Groups_t gary[NGROUPS]; |
79072805 LW |
554 | |
555 | i = getgroups(NGROUPS,gary); | |
556 | while (--i >= 0) { | |
188ea221 | 557 | (void)sprintf(s," %d", (int)gary[i]); |
79072805 LW |
558 | while (*s) s++; |
559 | } | |
560 | } | |
561 | #endif | |
562 | sv_setpv(sv,buf); | |
29355cf7 | 563 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
564 | break; |
565 | case '*': | |
566 | break; | |
567 | case '0': | |
568 | break; | |
569 | } | |
a0d0e21e | 570 | return 0; |
79072805 LW |
571 | } |
572 | ||
573 | int | |
574 | magic_getuvar(sv, mg) | |
575 | SV *sv; | |
576 | MAGIC *mg; | |
577 | { | |
578 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
579 | ||
580 | if (uf && uf->uf_val) | |
581 | (*uf->uf_val)(uf->uf_index, sv); | |
582 | return 0; | |
583 | } | |
584 | ||
585 | int | |
586 | magic_setenv(sv,mg) | |
587 | SV* sv; | |
588 | MAGIC* mg; | |
589 | { | |
590 | register char *s; | |
88e89b8a | 591 | char *ptr; |
a0d0e21e LW |
592 | STRLEN len; |
593 | I32 i; | |
594 | s = SvPV(sv,len); | |
188ea221 | 595 | ptr = MgPV(mg); |
88e89b8a | 596 | my_setenv(ptr, s); |
a0d0e21e LW |
597 | #ifdef DYNAMIC_ENV_FETCH |
598 | /* We just undefd an environment var. Is a replacement */ | |
599 | /* waiting in the wings? */ | |
600 | if (!len) { | |
88e89b8a | 601 | HE *envhe; |
188ea221 CS |
602 | SV *keysv; |
603 | if (mg->mg_len == HEf_SVKEY) keysv = (SV *)mg->mg_ptr; | |
604 | else keysv = newSVpv(mg->mg_ptr,mg->mg_len); | |
605 | if (envhe = hv_fetch_ent(GvHVn(envgv),keysv,FALSE,0)) | |
88e89b8a | 606 | s = SvPV(HeVAL(envhe),len); |
188ea221 | 607 | if (mg->mg_len != HEf_SVKEY) SvREFCNT_dec(keysv); |
a0d0e21e LW |
608 | } |
609 | #endif | |
79072805 LW |
610 | /* And you'll never guess what the dog had */ |
611 | /* in its mouth... */ | |
463ee0b2 | 612 | if (tainting) { |
88e89b8a | 613 | if (s && strEQ(ptr,"PATH")) { |
a0d0e21e | 614 | char *strend = s + len; |
463ee0b2 LW |
615 | |
616 | while (s < strend) { | |
617 | s = cpytill(tokenbuf,s,strend,':',&i); | |
618 | s++; | |
619 | if (*tokenbuf != '/' | |
a0d0e21e | 620 | || (Stat(tokenbuf,&statbuf) && (statbuf.st_mode & 2)) ) |
8990e307 | 621 | MgTAINTEDDIR_on(mg); |
463ee0b2 | 622 | } |
79072805 LW |
623 | } |
624 | } | |
79072805 LW |
625 | return 0; |
626 | } | |
627 | ||
628 | int | |
85e6fe83 LW |
629 | magic_clearenv(sv,mg) |
630 | SV* sv; | |
631 | MAGIC* mg; | |
632 | { | |
188ea221 | 633 | my_setenv(MgPV(mg),Nullch); |
85e6fe83 LW |
634 | return 0; |
635 | } | |
636 | ||
3d37d572 | 637 | #ifdef HAS_SIGACTION |
638 | /* set up reliable signal() clone */ | |
639 | ||
640 | typedef void (*Sigfunc) _((int)); | |
641 | ||
642 | static | |
643 | Sigfunc rsignal(signo,handler) | |
644 | int signo; | |
645 | Sigfunc handler; | |
646 | { | |
647 | struct sigaction act,oact; | |
648 | ||
649 | act.sa_handler = handler; | |
650 | sigemptyset(&act.sa_mask); | |
651 | act.sa_flags = 0; | |
3d37d572 | 652 | #ifdef SA_RESTART |
88e89b8a | 653 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ |
3d37d572 | 654 | #endif |
3d37d572 | 655 | if (sigaction(signo, &act, &oact) < 0) |
656 | return(SIG_ERR); | |
657 | else | |
658 | return(oact.sa_handler); | |
659 | } | |
660 | ||
661 | #else | |
662 | ||
663 | /* ah well, so much for reliability */ | |
664 | ||
665 | #define rsignal(x,y) signal(x,y) | |
666 | ||
667 | #endif | |
668 | ||
88e89b8a | 669 | static sig_trapped; |
670 | static | |
671 | Signal_t | |
672 | sig_trap(signo) | |
673 | int signo; | |
674 | { | |
675 | sig_trapped++; | |
676 | } | |
677 | int | |
678 | magic_getsig(sv,mg) | |
679 | SV* sv; | |
680 | MAGIC* mg; | |
681 | { | |
682 | I32 i; | |
683 | /* Are we fetching a signal entry? */ | |
188ea221 | 684 | i = whichsig(MgPV(mg)); |
88e89b8a | 685 | if (i) { |
686 | if(psig_ptr[i]) | |
687 | sv_setsv(sv,psig_ptr[i]); | |
688 | else { | |
760ac839 | 689 | void (*origsig) _((int)); |
88e89b8a | 690 | /* get signal state without losing signals */ |
691 | sig_trapped=0; | |
692 | origsig = rsignal(i,sig_trap); | |
693 | rsignal(i,origsig); | |
694 | if(sig_trapped) | |
695 | kill(getpid(),i); | |
696 | /* cache state so we don't fetch it again */ | |
697 | if(origsig == SIG_IGN) | |
698 | sv_setpv(sv,"IGNORE"); | |
699 | else | |
700 | sv_setsv(sv,&sv_undef); | |
701 | psig_ptr[i] = SvREFCNT_inc(sv); | |
702 | SvTEMP_off(sv); | |
703 | } | |
704 | } | |
705 | return 0; | |
706 | } | |
707 | int | |
708 | magic_clearsig(sv,mg) | |
709 | SV* sv; | |
710 | MAGIC* mg; | |
711 | { | |
712 | I32 i; | |
713 | /* Are we clearing a signal entry? */ | |
188ea221 | 714 | i = whichsig(MgPV(mg)); |
88e89b8a | 715 | if (i) { |
716 | if(psig_ptr[i]) { | |
717 | SvREFCNT_dec(psig_ptr[i]); | |
718 | psig_ptr[i]=0; | |
719 | } | |
720 | if(psig_name[i]) { | |
721 | SvREFCNT_dec(psig_name[i]); | |
722 | psig_name[i]=0; | |
723 | } | |
724 | } | |
725 | return 0; | |
726 | } | |
3d37d572 | 727 | |
85e6fe83 | 728 | int |
79072805 LW |
729 | magic_setsig(sv,mg) |
730 | SV* sv; | |
731 | MAGIC* mg; | |
732 | { | |
733 | register char *s; | |
734 | I32 i; | |
748a9306 | 735 | SV** svp; |
a0d0e21e | 736 | |
188ea221 | 737 | s = MgPV(mg); |
748a9306 LW |
738 | if (*s == '_') { |
739 | if (strEQ(s,"__DIE__")) | |
740 | svp = &diehook; | |
741 | else if (strEQ(s,"__WARN__")) | |
742 | svp = &warnhook; | |
743 | else if (strEQ(s,"__PARSE__")) | |
744 | svp = &parsehook; | |
745 | else | |
746 | croak("No such hook: %s", s); | |
747 | i = 0; | |
4633a7c4 LW |
748 | if (*svp) { |
749 | SvREFCNT_dec(*svp); | |
750 | *svp = 0; | |
751 | } | |
748a9306 LW |
752 | } |
753 | else { | |
754 | i = whichsig(s); /* ...no, a brick */ | |
755 | if (!i) { | |
756 | if (dowarn || strEQ(s,"ALARM")) | |
757 | warn("No such signal: SIG%s", s); | |
758 | return 0; | |
759 | } | |
88e89b8a | 760 | if(psig_ptr[i]) |
761 | SvREFCNT_dec(psig_ptr[i]); | |
762 | psig_ptr[i] = SvREFCNT_inc(sv); | |
763 | if(psig_name[i]) | |
764 | SvREFCNT_dec(psig_name[i]); | |
8646b087 | 765 | psig_name[i] = newSVpv(s,strlen(s)); |
88e89b8a | 766 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
767 | SvREADONLY_on(psig_name[i]); | |
748a9306 | 768 | } |
a0d0e21e | 769 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 770 | if (i) |
3d37d572 | 771 | (void)rsignal(i,sighandler); |
748a9306 LW |
772 | else |
773 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
774 | return 0; |
775 | } | |
776 | s = SvPV_force(sv,na); | |
748a9306 LW |
777 | if (strEQ(s,"IGNORE")) { |
778 | if (i) | |
3d37d572 | 779 | (void)rsignal(i,SIG_IGN); |
748a9306 LW |
780 | else |
781 | *svp = 0; | |
782 | } | |
783 | else if (strEQ(s,"DEFAULT") || !*s) { | |
784 | if (i) | |
3d37d572 | 785 | (void)rsignal(i,SIG_DFL); |
748a9306 LW |
786 | else |
787 | *svp = 0; | |
788 | } | |
79072805 | 789 | else { |
760ac839 LW |
790 | if(hints & HINT_STRICT_REFS) |
791 | die(no_symref,s,"a subroutine"); | |
2304df62 AD |
792 | if (!strchr(s,':') && !strchr(s,'\'')) { |
793 | sprintf(tokenbuf, "main::%s",s); | |
79072805 LW |
794 | sv_setpv(sv,tokenbuf); |
795 | } | |
748a9306 | 796 | if (i) |
3d37d572 | 797 | (void)rsignal(i,sighandler); |
748a9306 LW |
798 | else |
799 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
800 | } |
801 | return 0; | |
802 | } | |
803 | ||
804 | int | |
463ee0b2 | 805 | magic_setisa(sv,mg) |
79072805 LW |
806 | SV* sv; |
807 | MAGIC* mg; | |
808 | { | |
463ee0b2 LW |
809 | sub_generation++; |
810 | return 0; | |
811 | } | |
812 | ||
a0d0e21e LW |
813 | #ifdef OVERLOAD |
814 | ||
463ee0b2 | 815 | int |
a0d0e21e | 816 | magic_setamagic(sv,mg) |
463ee0b2 LW |
817 | SV* sv; |
818 | MAGIC* mg; | |
819 | { | |
a0d0e21e LW |
820 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
821 | amagic_generation++; | |
463ee0b2 | 822 | |
a0d0e21e LW |
823 | return 0; |
824 | } | |
825 | #endif /* OVERLOAD */ | |
463ee0b2 | 826 | |
946ec16e | 827 | int |
828 | magic_setnkeys(sv,mg) | |
829 | SV* sv; | |
830 | MAGIC* mg; | |
831 | { | |
832 | if (LvTARG(sv)) { | |
833 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
834 | LvTARG(sv) = Nullsv; /* Don't allow a ref to reassign this. */ | |
835 | } | |
836 | return 0; | |
837 | } | |
838 | ||
a0d0e21e LW |
839 | static int |
840 | magic_methpack(sv,mg,meth) | |
841 | SV* sv; | |
842 | MAGIC* mg; | |
843 | char *meth; | |
844 | { | |
845 | dSP; | |
463ee0b2 | 846 | |
a0d0e21e LW |
847 | ENTER; |
848 | SAVETMPS; | |
849 | PUSHMARK(sp); | |
850 | EXTEND(sp, 2); | |
851 | PUSHs(mg->mg_obj); | |
88e89b8a | 852 | if (mg->mg_ptr) { |
853 | if (mg->mg_len >= 0) | |
854 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
855 | else if (mg->mg_len == HEf_SVKEY) | |
856 | PUSHs((SV*)mg->mg_ptr); | |
857 | } | |
a0d0e21e LW |
858 | else if (mg->mg_type == 'p') |
859 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
860 | PUTBACK; |
861 | ||
a0d0e21e LW |
862 | if (perl_call_method(meth, G_SCALAR)) |
863 | sv_setsv(sv, *stack_sp--); | |
463ee0b2 | 864 | |
a0d0e21e LW |
865 | FREETMPS; |
866 | LEAVE; | |
867 | return 0; | |
868 | } | |
463ee0b2 | 869 | |
a0d0e21e LW |
870 | int |
871 | magic_getpack(sv,mg) | |
872 | SV* sv; | |
873 | MAGIC* mg; | |
874 | { | |
875 | magic_methpack(sv,mg,"FETCH"); | |
876 | if (mg->mg_ptr) | |
877 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
878 | return 0; |
879 | } | |
880 | ||
881 | int | |
882 | magic_setpack(sv,mg) | |
883 | SV* sv; | |
884 | MAGIC* mg; | |
885 | { | |
463ee0b2 | 886 | dSP; |
463ee0b2 | 887 | |
a0d0e21e LW |
888 | PUSHMARK(sp); |
889 | EXTEND(sp, 3); | |
890 | PUSHs(mg->mg_obj); | |
88e89b8a | 891 | if (mg->mg_ptr) { |
892 | if (mg->mg_len >= 0) | |
893 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
894 | else if (mg->mg_len == HEf_SVKEY) | |
895 | PUSHs((SV*)mg->mg_ptr); | |
896 | } | |
a0d0e21e LW |
897 | else if (mg->mg_type == 'p') |
898 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
899 | PUSHs(sv); |
900 | PUTBACK; | |
901 | ||
a0d0e21e | 902 | perl_call_method("STORE", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
903 | |
904 | return 0; | |
905 | } | |
906 | ||
907 | int | |
908 | magic_clearpack(sv,mg) | |
909 | SV* sv; | |
910 | MAGIC* mg; | |
911 | { | |
a0d0e21e LW |
912 | return magic_methpack(sv,mg,"DELETE"); |
913 | } | |
463ee0b2 | 914 | |
a0d0e21e LW |
915 | int magic_wipepack(sv,mg) |
916 | SV* sv; | |
917 | MAGIC* mg; | |
918 | { | |
919 | dSP; | |
463ee0b2 | 920 | |
a0d0e21e LW |
921 | PUSHMARK(sp); |
922 | XPUSHs(mg->mg_obj); | |
463ee0b2 | 923 | PUTBACK; |
463ee0b2 | 924 | |
a0d0e21e | 925 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
926 | |
927 | return 0; | |
928 | } | |
929 | ||
930 | int | |
931 | magic_nextpack(sv,mg,key) | |
932 | SV* sv; | |
933 | MAGIC* mg; | |
934 | SV* key; | |
935 | { | |
463ee0b2 | 936 | dSP; |
a0d0e21e | 937 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
938 | |
939 | ENTER; | |
a0d0e21e LW |
940 | SAVETMPS; |
941 | PUSHMARK(sp); | |
942 | EXTEND(sp, 2); | |
943 | PUSHs(mg->mg_obj); | |
463ee0b2 LW |
944 | if (SvOK(key)) |
945 | PUSHs(key); | |
946 | PUTBACK; | |
947 | ||
a0d0e21e LW |
948 | if (perl_call_method(meth, G_SCALAR)) |
949 | sv_setsv(key, *stack_sp--); | |
463ee0b2 | 950 | |
a0d0e21e LW |
951 | FREETMPS; |
952 | LEAVE; | |
79072805 LW |
953 | return 0; |
954 | } | |
955 | ||
956 | int | |
a0d0e21e LW |
957 | magic_existspack(sv,mg) |
958 | SV* sv; | |
959 | MAGIC* mg; | |
960 | { | |
961 | return magic_methpack(sv,mg,"EXISTS"); | |
962 | } | |
963 | ||
964 | int | |
79072805 LW |
965 | magic_setdbline(sv,mg) |
966 | SV* sv; | |
967 | MAGIC* mg; | |
968 | { | |
969 | OP *o; | |
970 | I32 i; | |
971 | GV* gv; | |
972 | SV** svp; | |
973 | ||
974 | gv = DBline; | |
975 | i = SvTRUE(sv); | |
188ea221 CS |
976 | svp = av_fetch(GvAV(gv), |
977 | atoi(MgPV(mg)), FALSE); | |
8990e307 | 978 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 979 | o->op_private = i; |
79072805 LW |
980 | else |
981 | warn("Can't break at that line\n"); | |
982 | return 0; | |
983 | } | |
984 | ||
985 | int | |
986 | magic_getarylen(sv,mg) | |
987 | SV* sv; | |
988 | MAGIC* mg; | |
989 | { | |
a0d0e21e | 990 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 LW |
991 | return 0; |
992 | } | |
993 | ||
994 | int | |
995 | magic_setarylen(sv,mg) | |
996 | SV* sv; | |
997 | MAGIC* mg; | |
998 | { | |
a0d0e21e LW |
999 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
1000 | return 0; | |
1001 | } | |
1002 | ||
1003 | int | |
1004 | magic_getpos(sv,mg) | |
1005 | SV* sv; | |
1006 | MAGIC* mg; | |
1007 | { | |
1008 | SV* lsv = LvTARG(sv); | |
1009 | ||
1010 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
1011 | mg = mg_find(lsv, 'g'); | |
1012 | if (mg && mg->mg_len >= 0) { | |
1013 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); | |
1014 | return 0; | |
1015 | } | |
1016 | } | |
1017 | (void)SvOK_off(sv); | |
1018 | return 0; | |
1019 | } | |
1020 | ||
1021 | int | |
1022 | magic_setpos(sv,mg) | |
1023 | SV* sv; | |
1024 | MAGIC* mg; | |
1025 | { | |
1026 | SV* lsv = LvTARG(sv); | |
1027 | SSize_t pos; | |
1028 | STRLEN len; | |
1029 | ||
1030 | mg = 0; | |
1031 | ||
1032 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1033 | mg = mg_find(lsv, 'g'); | |
1034 | if (!mg) { | |
1035 | if (!SvOK(sv)) | |
1036 | return 0; | |
1037 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1038 | mg = mg_find(lsv, 'g'); | |
1039 | } | |
1040 | else if (!SvOK(sv)) { | |
1041 | mg->mg_len = -1; | |
1042 | return 0; | |
1043 | } | |
1044 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1045 | ||
1046 | pos = SvIV(sv) - curcop->cop_arybase; | |
1047 | if (pos < 0) { | |
1048 | pos += len; | |
1049 | if (pos < 0) | |
1050 | pos = 0; | |
1051 | } | |
1052 | else if (pos > len) | |
1053 | pos = len; | |
1054 | mg->mg_len = pos; | |
1055 | ||
79072805 LW |
1056 | return 0; |
1057 | } | |
1058 | ||
1059 | int | |
1060 | magic_getglob(sv,mg) | |
1061 | SV* sv; | |
1062 | MAGIC* mg; | |
1063 | { | |
8646b087 | 1064 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1065 | SvFAKE_off(sv); | |
946ec16e | 1066 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1067 | SvFAKE_on(sv); |
1068 | } | |
1069 | else | |
946ec16e | 1070 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1071 | return 0; |
1072 | } | |
1073 | ||
1074 | int | |
1075 | magic_setglob(sv,mg) | |
1076 | SV* sv; | |
1077 | MAGIC* mg; | |
1078 | { | |
1079 | register char *s; | |
1080 | GV* gv; | |
1081 | ||
1082 | if (!SvOK(sv)) | |
1083 | return 0; | |
463ee0b2 | 1084 | s = SvPV(sv, na); |
79072805 LW |
1085 | if (*s == '*' && s[1]) |
1086 | s++; | |
85e6fe83 | 1087 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1088 | if (sv == (SV*)gv) |
1089 | return 0; | |
1090 | if (GvGP(sv)) | |
88e89b8a | 1091 | gp_free((GV*)sv); |
79072805 LW |
1092 | GvGP(sv) = gp_ref(GvGP(gv)); |
1093 | if (!GvAV(gv)) | |
1094 | gv_AVadd(gv); | |
1095 | if (!GvHV(gv)) | |
1096 | gv_HVadd(gv); | |
a0d0e21e LW |
1097 | if (!GvIOp(gv)) |
1098 | GvIOp(gv) = newIO(); | |
79072805 LW |
1099 | return 0; |
1100 | } | |
1101 | ||
1102 | int | |
1103 | magic_setsubstr(sv,mg) | |
1104 | SV* sv; | |
1105 | MAGIC* mg; | |
1106 | { | |
8990e307 LW |
1107 | STRLEN len; |
1108 | char *tmps = SvPV(sv,len); | |
1109 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1110 | return 0; |
1111 | } | |
1112 | ||
1113 | int | |
463ee0b2 LW |
1114 | magic_gettaint(sv,mg) |
1115 | SV* sv; | |
1116 | MAGIC* mg; | |
1117 | { | |
bbce6d69 | 1118 | TAINT_IF((mg->mg_len & 1) || |
1119 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1120 | return 0; |
1121 | } | |
1122 | ||
1123 | int | |
1124 | magic_settaint(sv,mg) | |
1125 | SV* sv; | |
1126 | MAGIC* mg; | |
1127 | { | |
748a9306 LW |
1128 | if (localizing) { |
1129 | if (localizing == 1) | |
1130 | mg->mg_len <<= 1; | |
1131 | else | |
1132 | mg->mg_len >>= 1; | |
a0d0e21e | 1133 | } |
748a9306 LW |
1134 | else if (tainted) |
1135 | mg->mg_len |= 1; | |
1136 | else | |
1137 | mg->mg_len &= ~1; | |
463ee0b2 LW |
1138 | return 0; |
1139 | } | |
1140 | ||
1141 | int | |
79072805 LW |
1142 | magic_setvec(sv,mg) |
1143 | SV* sv; | |
1144 | MAGIC* mg; | |
1145 | { | |
1146 | do_vecset(sv); /* XXX slurp this routine */ | |
1147 | return 0; | |
1148 | } | |
1149 | ||
1150 | int | |
93a17b20 LW |
1151 | magic_setmglob(sv,mg) |
1152 | SV* sv; | |
1153 | MAGIC* mg; | |
1154 | { | |
a0d0e21e | 1155 | mg->mg_len = -1; |
c6496cc7 | 1156 | SvSCREAM_off(sv); |
93a17b20 LW |
1157 | return 0; |
1158 | } | |
1159 | ||
1160 | int | |
79072805 LW |
1161 | magic_setbm(sv,mg) |
1162 | SV* sv; | |
1163 | MAGIC* mg; | |
1164 | { | |
463ee0b2 | 1165 | sv_unmagic(sv, 'B'); |
79072805 LW |
1166 | SvVALID_off(sv); |
1167 | return 0; | |
1168 | } | |
1169 | ||
1170 | int | |
55497cff | 1171 | magic_setfm(sv,mg) |
1172 | SV* sv; | |
1173 | MAGIC* mg; | |
1174 | { | |
1175 | sv_unmagic(sv, 'f'); | |
1176 | SvCOMPILED_off(sv); | |
1177 | return 0; | |
1178 | } | |
1179 | ||
1180 | int | |
79072805 LW |
1181 | magic_setuvar(sv,mg) |
1182 | SV* sv; | |
1183 | MAGIC* mg; | |
1184 | { | |
1185 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1186 | ||
1187 | if (uf && uf->uf_set) | |
1188 | (*uf->uf_set)(uf->uf_index, sv); | |
1189 | return 0; | |
1190 | } | |
1191 | ||
1192 | int | |
bbce6d69 | 1193 | magic_setcollxfrm(sv,mg) |
1194 | SV* sv; | |
1195 | MAGIC* mg; | |
1196 | { | |
1197 | /* | |
1198 | * René Descartes said "I think not." | |
1199 | * and vanished with a faint plop. | |
1200 | */ | |
1201 | sv_unmagic(sv, 'o'); | |
1202 | return 0; | |
1203 | } | |
1204 | ||
1205 | int | |
79072805 LW |
1206 | magic_set(sv,mg) |
1207 | SV* sv; | |
1208 | MAGIC* mg; | |
1209 | { | |
1210 | register char *s; | |
1211 | I32 i; | |
8990e307 | 1212 | STRLEN len; |
79072805 | 1213 | switch (*mg->mg_ptr) { |
748a9306 LW |
1214 | case '\001': /* ^A */ |
1215 | sv_setsv(bodytarget, sv); | |
1216 | break; | |
79072805 | 1217 | case '\004': /* ^D */ |
8990e307 | 1218 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1219 | DEBUG_x(dump_all()); |
1220 | break; | |
28f23441 | 1221 | case '\005': /* ^E */ |
1222 | #ifdef VMS | |
1223 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1224 | #else | |
1225 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv),4); /* will anyone ever use this? */ | |
1226 | #endif | |
1227 | break; | |
79072805 | 1228 | case '\006': /* ^F */ |
463ee0b2 | 1229 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1230 | break; |
a0d0e21e LW |
1231 | case '\010': /* ^H */ |
1232 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1233 | break; | |
79072805 LW |
1234 | case '\t': /* ^I */ |
1235 | if (inplace) | |
1236 | Safefree(inplace); | |
1237 | if (SvOK(sv)) | |
a0d0e21e | 1238 | inplace = savepv(SvPV(sv,na)); |
79072805 LW |
1239 | else |
1240 | inplace = Nullch; | |
1241 | break; | |
28f23441 | 1242 | case '\017': /* ^O */ |
1243 | if (osname) | |
1244 | Safefree(osname); | |
1245 | if (SvOK(sv)) | |
1246 | osname = savepv(SvPV(sv,na)); | |
1247 | else | |
1248 | osname = Nullch; | |
1249 | break; | |
79072805 | 1250 | case '\020': /* ^P */ |
463ee0b2 | 1251 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1252 | if (i != perldb) { |
1253 | if (perldb) | |
1254 | oldlastpm = curpm; | |
1255 | else | |
1256 | curpm = oldlastpm; | |
1257 | } | |
1258 | perldb = i; | |
1259 | break; | |
1260 | case '\024': /* ^T */ | |
88e89b8a | 1261 | #ifdef BIG_TIME |
1262 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); | |
1263 | #else | |
85e6fe83 | 1264 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1265 | #endif |
79072805 LW |
1266 | break; |
1267 | case '\027': /* ^W */ | |
463ee0b2 | 1268 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1269 | break; |
1270 | case '.': | |
748a9306 LW |
1271 | if (localizing) { |
1272 | if (localizing == 1) | |
1273 | save_sptr((SV**)&last_in_gv); | |
1274 | } | |
88e89b8a | 1275 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e | 1276 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 LW |
1277 | break; |
1278 | case '^': | |
a0d0e21e LW |
1279 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1280 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1281 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1282 | break; |
1283 | case '~': | |
a0d0e21e LW |
1284 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1285 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1286 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1287 | break; |
1288 | case '=': | |
a0d0e21e | 1289 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1290 | break; |
1291 | case '-': | |
a0d0e21e LW |
1292 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1293 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) | |
1294 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; | |
79072805 LW |
1295 | break; |
1296 | case '%': | |
a0d0e21e | 1297 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1298 | break; |
1299 | case '|': | |
a0d0e21e | 1300 | IoFLAGS(GvIOp(defoutgv)) &= ~IOf_FLUSH; |
463ee0b2 | 1301 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) != 0) { |
a0d0e21e | 1302 | IoFLAGS(GvIOp(defoutgv)) |= IOf_FLUSH; |
79072805 LW |
1303 | } |
1304 | break; | |
1305 | case '*': | |
463ee0b2 | 1306 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1307 | multiline = (i != 0); |
1308 | break; | |
1309 | case '/': | |
c07a80fd | 1310 | SvREFCNT_dec(nrs); |
1311 | nrs = newSVsv(sv); | |
1312 | SvREFCNT_dec(rs); | |
1313 | rs = SvREFCNT_inc(nrs); | |
79072805 LW |
1314 | break; |
1315 | case '\\': | |
1316 | if (ors) | |
1317 | Safefree(ors); | |
a0d0e21e | 1318 | ors = savepv(SvPV(sv,orslen)); |
79072805 LW |
1319 | break; |
1320 | case ',': | |
1321 | if (ofs) | |
1322 | Safefree(ofs); | |
a0d0e21e | 1323 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 LW |
1324 | break; |
1325 | case '#': | |
1326 | if (ofmt) | |
1327 | Safefree(ofmt); | |
a0d0e21e | 1328 | ofmt = savepv(SvPV(sv,na)); |
79072805 LW |
1329 | break; |
1330 | case '[': | |
a0d0e21e | 1331 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1332 | break; |
1333 | case '?': | |
748a9306 | 1334 | statusvalue = FIXSTATUS(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1335 | break; |
1336 | case '!': | |
28f23441 | 1337 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv),SvIV(sv) == EVMSERR ? 4 : vaxc$errno); /* will anyone ever use this? */ |
79072805 LW |
1338 | break; |
1339 | case '<': | |
463ee0b2 | 1340 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1341 | if (delaymagic) { |
1342 | delaymagic |= DM_RUID; | |
1343 | break; /* don't do magic till later */ | |
1344 | } | |
1345 | #ifdef HAS_SETRUID | |
85e6fe83 | 1346 | (void)setruid((Uid_t)uid); |
79072805 LW |
1347 | #else |
1348 | #ifdef HAS_SETREUID | |
85e6fe83 | 1349 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 | 1350 | #else |
85e6fe83 LW |
1351 | #ifdef HAS_SETRESUID |
1352 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); | |
79072805 LW |
1353 | #else |
1354 | if (uid == euid) /* special case $< = $> */ | |
1355 | (void)setuid(uid); | |
a0d0e21e LW |
1356 | else { |
1357 | uid = (I32)getuid(); | |
463ee0b2 | 1358 | croak("setruid() not implemented"); |
a0d0e21e | 1359 | } |
79072805 LW |
1360 | #endif |
1361 | #endif | |
85e6fe83 | 1362 | #endif |
748a9306 | 1363 | uid = (I32)getuid(); |
4633a7c4 | 1364 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1365 | break; |
1366 | case '>': | |
463ee0b2 | 1367 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1368 | if (delaymagic) { |
1369 | delaymagic |= DM_EUID; | |
1370 | break; /* don't do magic till later */ | |
1371 | } | |
1372 | #ifdef HAS_SETEUID | |
85e6fe83 | 1373 | (void)seteuid((Uid_t)euid); |
79072805 LW |
1374 | #else |
1375 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1376 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1377 | #else | |
1378 | #ifdef HAS_SETRESUID | |
1379 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); | |
79072805 LW |
1380 | #else |
1381 | if (euid == uid) /* special case $> = $< */ | |
1382 | setuid(euid); | |
a0d0e21e LW |
1383 | else { |
1384 | euid = (I32)geteuid(); | |
463ee0b2 | 1385 | croak("seteuid() not implemented"); |
a0d0e21e | 1386 | } |
79072805 LW |
1387 | #endif |
1388 | #endif | |
85e6fe83 | 1389 | #endif |
79072805 | 1390 | euid = (I32)geteuid(); |
4633a7c4 | 1391 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1392 | break; |
1393 | case '(': | |
463ee0b2 | 1394 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1395 | if (delaymagic) { |
1396 | delaymagic |= DM_RGID; | |
1397 | break; /* don't do magic till later */ | |
1398 | } | |
1399 | #ifdef HAS_SETRGID | |
85e6fe83 | 1400 | (void)setrgid((Gid_t)gid); |
79072805 LW |
1401 | #else |
1402 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1403 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1404 | #else | |
1405 | #ifdef HAS_SETRESGID | |
1406 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); | |
79072805 LW |
1407 | #else |
1408 | if (gid == egid) /* special case $( = $) */ | |
1409 | (void)setgid(gid); | |
748a9306 LW |
1410 | else { |
1411 | gid = (I32)getgid(); | |
463ee0b2 | 1412 | croak("setrgid() not implemented"); |
748a9306 | 1413 | } |
79072805 LW |
1414 | #endif |
1415 | #endif | |
85e6fe83 | 1416 | #endif |
79072805 | 1417 | gid = (I32)getgid(); |
4633a7c4 | 1418 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1419 | break; |
1420 | case ')': | |
463ee0b2 | 1421 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1422 | if (delaymagic) { |
1423 | delaymagic |= DM_EGID; | |
1424 | break; /* don't do magic till later */ | |
1425 | } | |
1426 | #ifdef HAS_SETEGID | |
85e6fe83 | 1427 | (void)setegid((Gid_t)egid); |
79072805 LW |
1428 | #else |
1429 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1430 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1431 | #else | |
1432 | #ifdef HAS_SETRESGID | |
1433 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); | |
79072805 LW |
1434 | #else |
1435 | if (egid == gid) /* special case $) = $( */ | |
1436 | (void)setgid(egid); | |
748a9306 LW |
1437 | else { |
1438 | egid = (I32)getegid(); | |
463ee0b2 | 1439 | croak("setegid() not implemented"); |
748a9306 | 1440 | } |
79072805 LW |
1441 | #endif |
1442 | #endif | |
85e6fe83 | 1443 | #endif |
79072805 | 1444 | egid = (I32)getegid(); |
4633a7c4 | 1445 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1446 | break; |
1447 | case ':': | |
a0d0e21e | 1448 | chopset = SvPV_force(sv,na); |
79072805 LW |
1449 | break; |
1450 | case '0': | |
1451 | if (!origalen) { | |
1452 | s = origargv[0]; | |
1453 | s += strlen(s); | |
1454 | /* See if all the arguments are contiguous in memory */ | |
1455 | for (i = 1; i < origargc; i++) { | |
1456 | if (origargv[i] == s + 1) | |
1457 | s += strlen(++s); /* this one is ok too */ | |
1458 | } | |
bbce6d69 | 1459 | /* can grab env area too? */ |
1460 | if (origenviron && origenviron[0] == s + 1) { | |
79072805 LW |
1461 | my_setenv("NoNeSuCh", Nullch); |
1462 | /* force copy of environment */ | |
1463 | for (i = 0; origenviron[i]; i++) | |
1464 | if (origenviron[i] == s + 1) | |
1465 | s += strlen(++s); | |
1466 | } | |
1467 | origalen = s - origargv[0]; | |
1468 | } | |
a0d0e21e | 1469 | s = SvPV_force(sv,len); |
8990e307 | 1470 | i = len; |
79072805 LW |
1471 | if (i >= origalen) { |
1472 | i = origalen; | |
1473 | SvCUR_set(sv, i); | |
1474 | *SvEND(sv) = '\0'; | |
1475 | Copy(s, origargv[0], i, char); | |
1476 | } | |
1477 | else { | |
1478 | Copy(s, origargv[0], i, char); | |
1479 | s = origargv[0]+i; | |
1480 | *s++ = '\0'; | |
1481 | while (++i < origalen) | |
8990e307 LW |
1482 | *s++ = ' '; |
1483 | s = origargv[0]+i; | |
ed6116ce | 1484 | for (i = 1; i < origargc; i++) |
8990e307 | 1485 | origargv[i] = Nullch; |
79072805 LW |
1486 | } |
1487 | break; | |
1488 | } | |
1489 | return 0; | |
1490 | } | |
1491 | ||
1492 | I32 | |
1493 | whichsig(sig) | |
1494 | char *sig; | |
1495 | { | |
1496 | register char **sigv; | |
1497 | ||
1498 | for (sigv = sig_name+1; *sigv; sigv++) | |
1499 | if (strEQ(sig,*sigv)) | |
8e07c86e | 1500 | return sig_num[sigv - sig_name]; |
79072805 LW |
1501 | #ifdef SIGCLD |
1502 | if (strEQ(sig,"CHLD")) | |
1503 | return SIGCLD; | |
1504 | #endif | |
1505 | #ifdef SIGCHLD | |
1506 | if (strEQ(sig,"CLD")) | |
1507 | return SIGCHLD; | |
1508 | #endif | |
1509 | return 0; | |
1510 | } | |
1511 | ||
ecfc5424 | 1512 | Signal_t |
79072805 | 1513 | sighandler(sig) |
a0d0e21e | 1514 | int sig; |
79072805 LW |
1515 | { |
1516 | dSP; | |
1517 | GV *gv; | |
a0d0e21e | 1518 | HV *st; |
79072805 LW |
1519 | SV *sv; |
1520 | CV *cv; | |
79072805 | 1521 | AV *oldstack; |
760ac839 LW |
1522 | |
1523 | if(!psig_ptr[sig]) | |
1524 | die("Signal SIG%s received, but no signal handler set.\n", | |
1525 | sig_name[sig]); | |
79072805 | 1526 | |
88e89b8a | 1527 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); |
a0d0e21e | 1528 | if (!cv || !CvROOT(cv)) { |
79072805 LW |
1529 | if (dowarn) |
1530 | warn("SIG%s handler \"%s\" not defined.\n", | |
88e89b8a | 1531 | sig_name[sig], GvENAME(gv) ); |
79072805 LW |
1532 | return; |
1533 | } | |
1534 | ||
88e89b8a | 1535 | oldstack = curstack; |
1536 | if (curstack != signalstack) | |
a0d0e21e | 1537 | AvFILL(signalstack) = 0; |
88e89b8a | 1538 | SWITCHSTACK(curstack, signalstack); |
79072805 | 1539 | |
88e89b8a | 1540 | if(psig_name[sig]) |
1541 | sv = SvREFCNT_inc(psig_name[sig]); | |
1542 | else { | |
1543 | sv = sv_newmortal(); | |
1544 | sv_setpv(sv,sig_name[sig]); | |
1545 | } | |
a0d0e21e | 1546 | PUSHMARK(sp); |
79072805 | 1547 | PUSHs(sv); |
79072805 | 1548 | PUTBACK; |
a0d0e21e LW |
1549 | |
1550 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 LW |
1551 | |
1552 | SWITCHSTACK(signalstack, oldstack); | |
79072805 LW |
1553 | |
1554 | return; | |
1555 | } |