Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
9607fc9c | 3 | * Copyright (c) 1991-1997, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "Sam sat on the ground and put his head in his hands. 'I wish I had never | |
12 | * come here, and I don't want to see no more magic,' he said, and fell silent." | |
79072805 LW |
13 | */ |
14 | ||
15 | #include "EXTERN.h" | |
16 | #include "perl.h" | |
17 | ||
e6d9441c | 18 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e LW |
19 | #ifdef I_UNISTD |
20 | # include <unistd.h> | |
21 | #endif | |
a0d0e21e | 22 | |
188ea221 CS |
23 | #ifdef HAS_GETGROUPS |
24 | # ifndef NGROUPS | |
25 | # define NGROUPS 32 | |
26 | # endif | |
27 | #endif | |
28 | ||
c07a80fd | 29 | /* |
30 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
31 | */ | |
32 | ||
33 | struct magic_state { | |
34 | SV* mgs_sv; | |
35 | U32 mgs_flags; | |
36 | }; | |
37 | typedef struct magic_state MGS; | |
38 | ||
39 | static void restore_magic _((void *p)); | |
40 | ||
48e43a1c CS |
41 | static void |
42 | save_magic(mgs, sv) | |
43 | MGS* mgs; | |
c07a80fd | 44 | SV* sv; |
45 | { | |
c07a80fd | 46 | assert(SvMAGICAL(sv)); |
47 | ||
c07a80fd | 48 | mgs->mgs_sv = sv; |
49 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
50 | SAVEDESTRUCTOR(restore_magic, mgs); | |
51 | ||
52 | SvMAGICAL_off(sv); | |
53 | SvREADONLY_off(sv); | |
54 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
c07a80fd | 55 | } |
56 | ||
57 | static void | |
58 | restore_magic(p) | |
59 | void* p; | |
60 | { | |
48e43a1c | 61 | MGS* mgs = (MGS*)p; |
c07a80fd | 62 | SV* sv = mgs->mgs_sv; |
63 | ||
64 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
65 | { | |
66 | if (mgs->mgs_flags) | |
67 | SvFLAGS(sv) |= mgs->mgs_flags; | |
68 | else | |
69 | mg_magical(sv); | |
70 | if (SvGMAGICAL(sv)) | |
71 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
72 | } | |
c07a80fd | 73 | } |
74 | ||
8e07c86e | 75 | |
8990e307 LW |
76 | void |
77 | mg_magical(sv) | |
78 | SV* sv; | |
79 | { | |
80 | MAGIC* mg; | |
81 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
82 | MGVTBL* vtbl = mg->mg_virtual; | |
83 | if (vtbl) { | |
a0d0e21e | 84 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
85 | SvGMAGICAL_on(sv); |
86 | if (vtbl->svt_set) | |
87 | SvSMAGICAL_on(sv); | |
88 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) | |
89 | SvRMAGICAL_on(sv); | |
90 | } | |
91 | } | |
92 | } | |
93 | ||
79072805 LW |
94 | int |
95 | mg_get(sv) | |
96 | SV* sv; | |
97 | { | |
48e43a1c | 98 | MGS mgs; |
79072805 | 99 | MAGIC* mg; |
c6496cc7 | 100 | MAGIC** mgp; |
760ac839 | 101 | int mgp_valid = 0; |
463ee0b2 | 102 | |
c07a80fd | 103 | ENTER; |
48e43a1c | 104 | save_magic(&mgs, sv); |
463ee0b2 | 105 | |
c6496cc7 | 106 | mgp = &SvMAGIC(sv); |
107 | while ((mg = *mgp) != 0) { | |
79072805 | 108 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e | 109 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
79072805 | 110 | (*vtbl->svt_get)(sv, mg); |
c6496cc7 | 111 | /* Ignore this magic if it's been deleted */ |
48e43a1c CS |
112 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
113 | (mg->mg_flags & MGf_GSKIP)) | |
114 | mgs.mgs_flags = 0; | |
a0d0e21e | 115 | } |
c6496cc7 | 116 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 117 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 118 | mgp = &mg->mg_moremagic; |
760ac839 LW |
119 | mgp_valid = 1; |
120 | } | |
121 | else | |
122 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 123 | } |
463ee0b2 | 124 | |
c07a80fd | 125 | LEAVE; |
79072805 LW |
126 | return 0; |
127 | } | |
128 | ||
129 | int | |
130 | mg_set(sv) | |
131 | SV* sv; | |
132 | { | |
48e43a1c | 133 | MGS mgs; |
79072805 | 134 | MAGIC* mg; |
463ee0b2 LW |
135 | MAGIC* nextmg; |
136 | ||
c07a80fd | 137 | ENTER; |
48e43a1c | 138 | save_magic(&mgs, sv); |
463ee0b2 LW |
139 | |
140 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 141 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 142 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
143 | if (mg->mg_flags & MGf_GSKIP) { |
144 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
48e43a1c | 145 | mgs.mgs_flags = 0; |
a0d0e21e | 146 | } |
79072805 LW |
147 | if (vtbl && vtbl->svt_set) |
148 | (*vtbl->svt_set)(sv, mg); | |
149 | } | |
463ee0b2 | 150 | |
c07a80fd | 151 | LEAVE; |
79072805 LW |
152 | return 0; |
153 | } | |
154 | ||
155 | U32 | |
156 | mg_len(sv) | |
157 | SV* sv; | |
158 | { | |
159 | MAGIC* mg; | |
748a9306 | 160 | char *junk; |
463ee0b2 | 161 | STRLEN len; |
463ee0b2 | 162 | |
79072805 LW |
163 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
164 | MGVTBL* vtbl = mg->mg_virtual; | |
85e6fe83 | 165 | if (vtbl && vtbl->svt_len) { |
48e43a1c CS |
166 | MGS mgs; |
167 | ||
c07a80fd | 168 | ENTER; |
48e43a1c | 169 | save_magic(&mgs, sv); |
a0d0e21e | 170 | /* omit MGf_GSKIP -- not changed here */ |
85e6fe83 | 171 | len = (*vtbl->svt_len)(sv, mg); |
c07a80fd | 172 | LEAVE; |
85e6fe83 LW |
173 | return len; |
174 | } | |
175 | } | |
176 | ||
748a9306 | 177 | junk = SvPV(sv, len); |
463ee0b2 | 178 | return len; |
79072805 LW |
179 | } |
180 | ||
181 | int | |
182 | mg_clear(sv) | |
183 | SV* sv; | |
184 | { | |
48e43a1c | 185 | MGS mgs; |
79072805 | 186 | MAGIC* mg; |
463ee0b2 | 187 | |
c07a80fd | 188 | ENTER; |
48e43a1c | 189 | save_magic(&mgs, sv); |
463ee0b2 | 190 | |
79072805 LW |
191 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
192 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
193 | /* omit GSKIP -- never set here */ |
194 | ||
79072805 LW |
195 | if (vtbl && vtbl->svt_clear) |
196 | (*vtbl->svt_clear)(sv, mg); | |
197 | } | |
463ee0b2 | 198 | |
c07a80fd | 199 | LEAVE; |
79072805 LW |
200 | return 0; |
201 | } | |
202 | ||
93a17b20 LW |
203 | MAGIC* |
204 | mg_find(sv, type) | |
205 | SV* sv; | |
a0d0e21e | 206 | int type; |
93a17b20 LW |
207 | { |
208 | MAGIC* mg; | |
93a17b20 LW |
209 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
210 | if (mg->mg_type == type) | |
211 | return mg; | |
212 | } | |
213 | return 0; | |
214 | } | |
215 | ||
79072805 | 216 | int |
463ee0b2 | 217 | mg_copy(sv, nsv, key, klen) |
79072805 | 218 | SV* sv; |
463ee0b2 LW |
219 | SV* nsv; |
220 | char *key; | |
88e89b8a | 221 | I32 klen; |
79072805 | 222 | { |
463ee0b2 | 223 | int count = 0; |
79072805 | 224 | MAGIC* mg; |
463ee0b2 LW |
225 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
226 | if (isUPPER(mg->mg_type)) { | |
a0d0e21e | 227 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 228 | count++; |
79072805 | 229 | } |
79072805 | 230 | } |
463ee0b2 | 231 | return count; |
79072805 LW |
232 | } |
233 | ||
234 | int | |
463ee0b2 | 235 | mg_free(sv) |
79072805 LW |
236 | SV* sv; |
237 | { | |
238 | MAGIC* mg; | |
239 | MAGIC* moremagic; | |
240 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
241 | MGVTBL* vtbl = mg->mg_virtual; | |
242 | moremagic = mg->mg_moremagic; | |
243 | if (vtbl && vtbl->svt_free) | |
244 | (*vtbl->svt_free)(sv, mg); | |
93a17b20 | 245 | if (mg->mg_ptr && mg->mg_type != 'g') |
88e89b8a | 246 | if (mg->mg_len >= 0) |
247 | Safefree(mg->mg_ptr); | |
248 | else if (mg->mg_len == HEf_SVKEY) | |
249 | SvREFCNT_dec((SV*)mg->mg_ptr); | |
85e6fe83 | 250 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 251 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
252 | Safefree(mg); |
253 | } | |
254 | SvMAGIC(sv) = 0; | |
255 | return 0; | |
256 | } | |
257 | ||
258 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
259 | #include <signal.h> | |
260 | #endif | |
261 | ||
93a17b20 LW |
262 | U32 |
263 | magic_len(sv, mg) | |
264 | SV *sv; | |
265 | MAGIC *mg; | |
266 | { | |
267 | register I32 paren; | |
268 | register char *s; | |
269 | register I32 i; | |
bbce6d69 | 270 | register REGEXP *rx; |
748a9306 | 271 | char *t; |
93a17b20 LW |
272 | |
273 | switch (*mg->mg_ptr) { | |
274 | case '1': case '2': case '3': case '4': | |
275 | case '5': case '6': case '7': case '8': case '9': case '&': | |
bbce6d69 | 276 | if (curpm && (rx = curpm->op_pmregexp)) { |
93a17b20 LW |
277 | paren = atoi(mg->mg_ptr); |
278 | getparen: | |
bbce6d69 | 279 | if (paren <= rx->nparens && |
280 | (s = rx->startp[paren]) && | |
281 | (t = rx->endp[paren])) | |
282 | { | |
748a9306 | 283 | i = t - s; |
71be2cbc | 284 | if (i >= 0) |
93a17b20 | 285 | return i; |
93a17b20 | 286 | } |
93a17b20 | 287 | } |
748a9306 | 288 | return 0; |
93a17b20 | 289 | case '+': |
bbce6d69 | 290 | if (curpm && (rx = curpm->op_pmregexp)) { |
291 | paren = rx->lastparen; | |
13f57bf8 CS |
292 | if (paren) |
293 | goto getparen; | |
93a17b20 | 294 | } |
748a9306 | 295 | return 0; |
93a17b20 | 296 | case '`': |
bbce6d69 | 297 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 | 298 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 | 299 | i = rx->startp[0] - s; |
71be2cbc | 300 | if (i >= 0) |
93a17b20 | 301 | return i; |
93a17b20 | 302 | } |
93a17b20 | 303 | } |
748a9306 | 304 | return 0; |
93a17b20 | 305 | case '\'': |
bbce6d69 | 306 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 CS |
307 | if (rx->subend && (s = rx->endp[0])) { |
308 | i = rx->subend - s; | |
309 | if (i >= 0) | |
310 | return 0; | |
93a17b20 | 311 | } |
93a17b20 | 312 | } |
748a9306 | 313 | return 0; |
93a17b20 LW |
314 | case ',': |
315 | return (STRLEN)ofslen; | |
316 | case '\\': | |
317 | return (STRLEN)orslen; | |
318 | } | |
319 | magic_get(sv,mg); | |
320 | if (!SvPOK(sv) && SvNIOK(sv)) | |
463ee0b2 | 321 | sv_2pv(sv, &na); |
93a17b20 LW |
322 | if (SvPOK(sv)) |
323 | return SvCUR(sv); | |
324 | return 0; | |
325 | } | |
326 | ||
79072805 LW |
327 | int |
328 | magic_get(sv, mg) | |
329 | SV *sv; | |
330 | MAGIC *mg; | |
331 | { | |
332 | register I32 paren; | |
333 | register char *s; | |
334 | register I32 i; | |
bbce6d69 | 335 | register REGEXP *rx; |
748a9306 | 336 | char *t; |
79072805 LW |
337 | |
338 | switch (*mg->mg_ptr) { | |
748a9306 LW |
339 | case '\001': /* ^A */ |
340 | sv_setsv(sv, bodytarget); | |
341 | break; | |
79072805 | 342 | case '\004': /* ^D */ |
188ea221 | 343 | sv_setiv(sv, (IV)(debug & 32767)); |
79072805 | 344 | break; |
28f23441 | 345 | case '\005': /* ^E */ |
346 | #ifdef VMS | |
347 | { | |
348 | # include <descrip.h> | |
349 | # include <starlet.h> | |
350 | char msg[255]; | |
351 | $DESCRIPTOR(msgdsc,msg); | |
946ec16e | 352 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 | 353 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
354 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
355 | else | |
356 | sv_setpv(sv,""); | |
357 | } | |
358 | #else | |
88e89b8a | 359 | #ifdef OS2 |
946ec16e | 360 | sv_setnv(sv, (double)Perl_rc); |
88e89b8a | 361 | sv_setpv(sv, os2error(Perl_rc)); |
362 | #else | |
946ec16e | 363 | sv_setnv(sv, (double)errno); |
28f23441 | 364 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
365 | #endif | |
88e89b8a | 366 | #endif |
946ec16e | 367 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 368 | break; |
79072805 | 369 | case '\006': /* ^F */ |
188ea221 | 370 | sv_setiv(sv, (IV)maxsysfd); |
79072805 | 371 | break; |
a0d0e21e | 372 | case '\010': /* ^H */ |
188ea221 | 373 | sv_setiv(sv, (IV)hints); |
a0d0e21e | 374 | break; |
79072805 LW |
375 | case '\t': /* ^I */ |
376 | if (inplace) | |
377 | sv_setpv(sv, inplace); | |
378 | else | |
188ea221 | 379 | sv_setsv(sv, &sv_undef); |
79072805 | 380 | break; |
28f23441 | 381 | case '\017': /* ^O */ |
188ea221 | 382 | sv_setpv(sv, osname); |
28f23441 | 383 | break; |
79072805 | 384 | case '\020': /* ^P */ |
188ea221 | 385 | sv_setiv(sv, (IV)perldb); |
79072805 LW |
386 | break; |
387 | case '\024': /* ^T */ | |
88e89b8a | 388 | #ifdef BIG_TIME |
188ea221 | 389 | sv_setnv(sv, basetime); |
88e89b8a | 390 | #else |
188ea221 | 391 | sv_setiv(sv, (IV)basetime); |
88e89b8a | 392 | #endif |
79072805 LW |
393 | break; |
394 | case '\027': /* ^W */ | |
188ea221 | 395 | sv_setiv(sv, (IV)dowarn); |
79072805 LW |
396 | break; |
397 | case '1': case '2': case '3': case '4': | |
398 | case '5': case '6': case '7': case '8': case '9': case '&': | |
bbce6d69 | 399 | if (curpm && (rx = curpm->op_pmregexp)) { |
88e89b8a | 400 | paren = atoi(GvENAME((GV*)mg->mg_obj)); |
79072805 | 401 | getparen: |
bbce6d69 | 402 | if (paren <= rx->nparens && |
403 | (s = rx->startp[paren]) && | |
404 | (t = rx->endp[paren])) | |
405 | { | |
748a9306 | 406 | i = t - s; |
13f57bf8 | 407 | getrx: |
748a9306 | 408 | if (i >= 0) { |
13f57bf8 CS |
409 | bool was_tainted; |
410 | if (tainting) { | |
411 | was_tainted = tainted; | |
412 | tainted = FALSE; | |
413 | } | |
79072805 | 414 | sv_setpvn(sv,s,i); |
13f57bf8 CS |
415 | if (tainting) |
416 | tainted = was_tainted || rx->exec_tainted; | |
748a9306 LW |
417 | break; |
418 | } | |
79072805 | 419 | } |
79072805 | 420 | } |
748a9306 | 421 | sv_setsv(sv,&sv_undef); |
79072805 LW |
422 | break; |
423 | case '+': | |
bbce6d69 | 424 | if (curpm && (rx = curpm->op_pmregexp)) { |
425 | paren = rx->lastparen; | |
a0d0e21e LW |
426 | if (paren) |
427 | goto getparen; | |
79072805 | 428 | } |
748a9306 | 429 | sv_setsv(sv,&sv_undef); |
79072805 LW |
430 | break; |
431 | case '`': | |
bbce6d69 | 432 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 | 433 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 | 434 | i = rx->startp[0] - s; |
13f57bf8 | 435 | goto getrx; |
79072805 | 436 | } |
79072805 | 437 | } |
748a9306 | 438 | sv_setsv(sv,&sv_undef); |
79072805 LW |
439 | break; |
440 | case '\'': | |
bbce6d69 | 441 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 CS |
442 | if (rx->subend && (s = rx->endp[0])) { |
443 | i = rx->subend - s; | |
444 | goto getrx; | |
79072805 | 445 | } |
79072805 | 446 | } |
748a9306 | 447 | sv_setsv(sv,&sv_undef); |
79072805 LW |
448 | break; |
449 | case '.': | |
450 | #ifndef lint | |
a0d0e21e | 451 | if (GvIO(last_in_gv)) { |
188ea221 | 452 | sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv))); |
79072805 LW |
453 | } |
454 | #endif | |
455 | break; | |
456 | case '?': | |
ff0cee69 | 457 | sv_setiv(sv, (IV)STATUS_CURRENT); |
458 | #ifdef COMPLEX_STATUS | |
459 | LvTARGOFF(sv) = statusvalue; | |
460 | LvTARGLEN(sv) = statusvalue_vms; | |
461 | #endif | |
79072805 LW |
462 | break; |
463 | case '^': | |
a0d0e21e | 464 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 LW |
465 | if (s) |
466 | sv_setpv(sv,s); | |
467 | else { | |
468 | sv_setpv(sv,GvENAME(defoutgv)); | |
469 | sv_catpv(sv,"_TOP"); | |
470 | } | |
471 | break; | |
472 | case '~': | |
a0d0e21e | 473 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 LW |
474 | if (!s) |
475 | s = GvENAME(defoutgv); | |
476 | sv_setpv(sv,s); | |
477 | break; | |
478 | #ifndef lint | |
479 | case '=': | |
188ea221 | 480 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 LW |
481 | break; |
482 | case '-': | |
188ea221 | 483 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 LW |
484 | break; |
485 | case '%': | |
188ea221 | 486 | sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv))); |
79072805 LW |
487 | break; |
488 | #endif | |
489 | case ':': | |
490 | break; | |
491 | case '/': | |
492 | break; | |
493 | case '[': | |
188ea221 | 494 | sv_setiv(sv, (IV)curcop->cop_arybase); |
79072805 LW |
495 | break; |
496 | case '|': | |
188ea221 | 497 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
498 | break; |
499 | case ',': | |
500 | sv_setpvn(sv,ofs,ofslen); | |
501 | break; | |
502 | case '\\': | |
503 | sv_setpvn(sv,ors,orslen); | |
504 | break; | |
505 | case '#': | |
506 | sv_setpv(sv,ofmt); | |
507 | break; | |
508 | case '!': | |
a5f75d66 | 509 | #ifdef VMS |
946ec16e | 510 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 511 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 512 | #else |
88e89b8a | 513 | { |
514 | int saveerrno = errno; | |
946ec16e | 515 | sv_setnv(sv, (double)errno); |
88e89b8a | 516 | #ifdef OS2 |
517 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
518 | else | |
a5f75d66 | 519 | #endif |
2304df62 | 520 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 521 | errno = saveerrno; |
522 | } | |
523 | #endif | |
946ec16e | 524 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
525 | break; |
526 | case '<': | |
188ea221 | 527 | sv_setiv(sv, (IV)uid); |
79072805 LW |
528 | break; |
529 | case '>': | |
188ea221 | 530 | sv_setiv(sv, (IV)euid); |
79072805 LW |
531 | break; |
532 | case '(': | |
188ea221 | 533 | sv_setiv(sv, (IV)gid); |
79072805 LW |
534 | s = buf; |
535 | (void)sprintf(s,"%d",(int)gid); | |
536 | goto add_groups; | |
537 | case ')': | |
188ea221 | 538 | sv_setiv(sv, (IV)egid); |
79072805 LW |
539 | s = buf; |
540 | (void)sprintf(s,"%d",(int)egid); | |
541 | add_groups: | |
542 | while (*s) s++; | |
543 | #ifdef HAS_GETGROUPS | |
79072805 | 544 | { |
a0d0e21e | 545 | Groups_t gary[NGROUPS]; |
79072805 LW |
546 | |
547 | i = getgroups(NGROUPS,gary); | |
548 | while (--i >= 0) { | |
188ea221 | 549 | (void)sprintf(s," %d", (int)gary[i]); |
79072805 LW |
550 | while (*s) s++; |
551 | } | |
552 | } | |
553 | #endif | |
554 | sv_setpv(sv,buf); | |
29355cf7 | 555 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
556 | break; |
557 | case '*': | |
558 | break; | |
559 | case '0': | |
560 | break; | |
561 | } | |
a0d0e21e | 562 | return 0; |
79072805 LW |
563 | } |
564 | ||
565 | int | |
566 | magic_getuvar(sv, mg) | |
567 | SV *sv; | |
568 | MAGIC *mg; | |
569 | { | |
570 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
571 | ||
572 | if (uf && uf->uf_val) | |
573 | (*uf->uf_val)(uf->uf_index, sv); | |
574 | return 0; | |
575 | } | |
576 | ||
577 | int | |
578 | magic_setenv(sv,mg) | |
579 | SV* sv; | |
580 | MAGIC* mg; | |
581 | { | |
582 | register char *s; | |
88e89b8a | 583 | char *ptr; |
a0d0e21e LW |
584 | STRLEN len; |
585 | I32 i; | |
1e422769 | 586 | |
a0d0e21e | 587 | s = SvPV(sv,len); |
188ea221 | 588 | ptr = MgPV(mg); |
88e89b8a | 589 | my_setenv(ptr, s); |
1e422769 | 590 | |
a0d0e21e LW |
591 | #ifdef DYNAMIC_ENV_FETCH |
592 | /* We just undefd an environment var. Is a replacement */ | |
593 | /* waiting in the wings? */ | |
594 | if (!len) { | |
88e89b8a | 595 | HE *envhe; |
188ea221 | 596 | SV *keysv; |
1e422769 | 597 | if (mg->mg_len == HEf_SVKEY) |
598 | keysv = (SV *)mg->mg_ptr; | |
599 | else | |
600 | keysv = newSVpv(mg->mg_ptr, mg->mg_len); | |
601 | if ((envhe = hv_fetch_ent(GvHVn(envgv), keysv, FALSE, 0))) | |
602 | s = SvPV(HeVAL(envhe), len); | |
603 | if (mg->mg_len != HEf_SVKEY) | |
604 | SvREFCNT_dec(keysv); | |
a0d0e21e LW |
605 | } |
606 | #endif | |
1e422769 | 607 | |
68dc0745 | 608 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(_WIN32) |
79072805 LW |
609 | /* And you'll never guess what the dog had */ |
610 | /* in its mouth... */ | |
463ee0b2 | 611 | if (tainting) { |
1e422769 | 612 | MgTAINTEDDIR_off(mg); |
613 | #ifdef VMS | |
614 | if (s && strnEQ(ptr, "DCL$PATH", 8)) { | |
615 | char pathbuf[256], eltbuf[256], *cp, *elt = s; | |
616 | struct stat sbuf; | |
617 | int i = 0, j = 0; | |
618 | ||
619 | do { /* DCL$PATH may be a search list */ | |
620 | while (1) { /* as may dev portion of any element */ | |
621 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
622 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
623 | cando_by_name(S_IWUSR,0,elt) ) { | |
624 | MgTAINTEDDIR_on(mg); | |
625 | return 0; | |
626 | } | |
627 | } | |
628 | if ((cp = strchr(elt, ':')) != Nullch) | |
629 | *cp = '\0'; | |
630 | if (my_trnlnm(elt, eltbuf, j++)) | |
631 | elt = eltbuf; | |
632 | else | |
633 | break; | |
634 | } | |
635 | j = 0; | |
636 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
637 | } | |
638 | #endif /* VMS */ | |
88e89b8a | 639 | if (s && strEQ(ptr,"PATH")) { |
a0d0e21e | 640 | char *strend = s + len; |
463ee0b2 LW |
641 | |
642 | while (s < strend) { | |
1e422769 | 643 | struct stat st; |
644 | s = cpytill(tokenbuf, s, strend, ':', &i); | |
463ee0b2 LW |
645 | s++; |
646 | if (*tokenbuf != '/' | |
1e422769 | 647 | || (Stat(tokenbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 648 | MgTAINTEDDIR_on(mg); |
1e422769 | 649 | return 0; |
650 | } | |
463ee0b2 | 651 | } |
79072805 LW |
652 | } |
653 | } | |
68dc0745 | 654 | #endif /* neither OS2 nor AMIGAOS nor _WIN32 */ |
1e422769 | 655 | |
79072805 LW |
656 | return 0; |
657 | } | |
658 | ||
659 | int | |
85e6fe83 LW |
660 | magic_clearenv(sv,mg) |
661 | SV* sv; | |
662 | MAGIC* mg; | |
663 | { | |
188ea221 | 664 | my_setenv(MgPV(mg),Nullch); |
85e6fe83 LW |
665 | return 0; |
666 | } | |
667 | ||
88e89b8a | 668 | int |
669 | magic_getsig(sv,mg) | |
670 | SV* sv; | |
671 | MAGIC* mg; | |
672 | { | |
673 | I32 i; | |
674 | /* Are we fetching a signal entry? */ | |
188ea221 | 675 | i = whichsig(MgPV(mg)); |
88e89b8a | 676 | if (i) { |
677 | if(psig_ptr[i]) | |
678 | sv_setsv(sv,psig_ptr[i]); | |
679 | else { | |
ff68c719 | 680 | Sighandler_t sigstate = rsignal_state(i); |
681 | ||
88e89b8a | 682 | /* cache state so we don't fetch it again */ |
ff68c719 | 683 | if(sigstate == SIG_IGN) |
88e89b8a | 684 | sv_setpv(sv,"IGNORE"); |
685 | else | |
686 | sv_setsv(sv,&sv_undef); | |
687 | psig_ptr[i] = SvREFCNT_inc(sv); | |
688 | SvTEMP_off(sv); | |
689 | } | |
690 | } | |
691 | return 0; | |
692 | } | |
693 | int | |
694 | magic_clearsig(sv,mg) | |
695 | SV* sv; | |
696 | MAGIC* mg; | |
697 | { | |
698 | I32 i; | |
699 | /* Are we clearing a signal entry? */ | |
188ea221 | 700 | i = whichsig(MgPV(mg)); |
88e89b8a | 701 | if (i) { |
702 | if(psig_ptr[i]) { | |
703 | SvREFCNT_dec(psig_ptr[i]); | |
704 | psig_ptr[i]=0; | |
705 | } | |
706 | if(psig_name[i]) { | |
707 | SvREFCNT_dec(psig_name[i]); | |
708 | psig_name[i]=0; | |
709 | } | |
710 | } | |
711 | return 0; | |
712 | } | |
3d37d572 | 713 | |
85e6fe83 | 714 | int |
79072805 LW |
715 | magic_setsig(sv,mg) |
716 | SV* sv; | |
717 | MAGIC* mg; | |
718 | { | |
719 | register char *s; | |
720 | I32 i; | |
748a9306 | 721 | SV** svp; |
a0d0e21e | 722 | |
188ea221 | 723 | s = MgPV(mg); |
748a9306 LW |
724 | if (*s == '_') { |
725 | if (strEQ(s,"__DIE__")) | |
726 | svp = &diehook; | |
727 | else if (strEQ(s,"__WARN__")) | |
728 | svp = &warnhook; | |
729 | else if (strEQ(s,"__PARSE__")) | |
730 | svp = &parsehook; | |
731 | else | |
732 | croak("No such hook: %s", s); | |
733 | i = 0; | |
4633a7c4 LW |
734 | if (*svp) { |
735 | SvREFCNT_dec(*svp); | |
736 | *svp = 0; | |
737 | } | |
748a9306 LW |
738 | } |
739 | else { | |
740 | i = whichsig(s); /* ...no, a brick */ | |
741 | if (!i) { | |
742 | if (dowarn || strEQ(s,"ALARM")) | |
743 | warn("No such signal: SIG%s", s); | |
744 | return 0; | |
745 | } | |
ff0cee69 | 746 | SvREFCNT_dec(psig_name[i]); |
747 | SvREFCNT_dec(psig_ptr[i]); | |
88e89b8a | 748 | psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 749 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
ff0cee69 | 750 | psig_name[i] = newSVpv(s, strlen(s)); |
88e89b8a | 751 | SvREADONLY_on(psig_name[i]); |
748a9306 | 752 | } |
a0d0e21e | 753 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 754 | if (i) |
ff68c719 | 755 | (void)rsignal(i, sighandler); |
748a9306 LW |
756 | else |
757 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
758 | return 0; |
759 | } | |
760 | s = SvPV_force(sv,na); | |
748a9306 LW |
761 | if (strEQ(s,"IGNORE")) { |
762 | if (i) | |
ff68c719 | 763 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
764 | else |
765 | *svp = 0; | |
766 | } | |
767 | else if (strEQ(s,"DEFAULT") || !*s) { | |
768 | if (i) | |
ff68c719 | 769 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
770 | else |
771 | *svp = 0; | |
772 | } | |
79072805 | 773 | else { |
760ac839 LW |
774 | if(hints & HINT_STRICT_REFS) |
775 | die(no_symref,s,"a subroutine"); | |
2304df62 AD |
776 | if (!strchr(s,':') && !strchr(s,'\'')) { |
777 | sprintf(tokenbuf, "main::%s",s); | |
79072805 LW |
778 | sv_setpv(sv,tokenbuf); |
779 | } | |
748a9306 | 780 | if (i) |
ff68c719 | 781 | (void)rsignal(i, sighandler); |
748a9306 LW |
782 | else |
783 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
784 | } |
785 | return 0; | |
786 | } | |
787 | ||
788 | int | |
463ee0b2 | 789 | magic_setisa(sv,mg) |
79072805 LW |
790 | SV* sv; |
791 | MAGIC* mg; | |
792 | { | |
463ee0b2 LW |
793 | sub_generation++; |
794 | return 0; | |
795 | } | |
796 | ||
a0d0e21e LW |
797 | #ifdef OVERLOAD |
798 | ||
463ee0b2 | 799 | int |
a0d0e21e | 800 | magic_setamagic(sv,mg) |
463ee0b2 LW |
801 | SV* sv; |
802 | MAGIC* mg; | |
803 | { | |
a0d0e21e LW |
804 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
805 | amagic_generation++; | |
463ee0b2 | 806 | |
a0d0e21e LW |
807 | return 0; |
808 | } | |
809 | #endif /* OVERLOAD */ | |
463ee0b2 | 810 | |
946ec16e | 811 | int |
812 | magic_setnkeys(sv,mg) | |
813 | SV* sv; | |
814 | MAGIC* mg; | |
815 | { | |
816 | if (LvTARG(sv)) { | |
817 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
818 | LvTARG(sv) = Nullsv; /* Don't allow a ref to reassign this. */ | |
819 | } | |
820 | return 0; | |
821 | } | |
822 | ||
a0d0e21e LW |
823 | static int |
824 | magic_methpack(sv,mg,meth) | |
825 | SV* sv; | |
826 | MAGIC* mg; | |
827 | char *meth; | |
828 | { | |
829 | dSP; | |
463ee0b2 | 830 | |
a0d0e21e LW |
831 | ENTER; |
832 | SAVETMPS; | |
833 | PUSHMARK(sp); | |
834 | EXTEND(sp, 2); | |
835 | PUSHs(mg->mg_obj); | |
88e89b8a | 836 | if (mg->mg_ptr) { |
837 | if (mg->mg_len >= 0) | |
838 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
839 | else if (mg->mg_len == HEf_SVKEY) | |
840 | PUSHs((SV*)mg->mg_ptr); | |
841 | } | |
a0d0e21e LW |
842 | else if (mg->mg_type == 'p') |
843 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
844 | PUTBACK; |
845 | ||
a0d0e21e LW |
846 | if (perl_call_method(meth, G_SCALAR)) |
847 | sv_setsv(sv, *stack_sp--); | |
463ee0b2 | 848 | |
a0d0e21e LW |
849 | FREETMPS; |
850 | LEAVE; | |
851 | return 0; | |
852 | } | |
463ee0b2 | 853 | |
a0d0e21e LW |
854 | int |
855 | magic_getpack(sv,mg) | |
856 | SV* sv; | |
857 | MAGIC* mg; | |
858 | { | |
859 | magic_methpack(sv,mg,"FETCH"); | |
860 | if (mg->mg_ptr) | |
861 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
862 | return 0; |
863 | } | |
864 | ||
865 | int | |
866 | magic_setpack(sv,mg) | |
867 | SV* sv; | |
868 | MAGIC* mg; | |
869 | { | |
463ee0b2 | 870 | dSP; |
463ee0b2 | 871 | |
a0d0e21e LW |
872 | PUSHMARK(sp); |
873 | EXTEND(sp, 3); | |
874 | PUSHs(mg->mg_obj); | |
88e89b8a | 875 | if (mg->mg_ptr) { |
876 | if (mg->mg_len >= 0) | |
877 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
878 | else if (mg->mg_len == HEf_SVKEY) | |
879 | PUSHs((SV*)mg->mg_ptr); | |
880 | } | |
a0d0e21e LW |
881 | else if (mg->mg_type == 'p') |
882 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
883 | PUSHs(sv); |
884 | PUTBACK; | |
885 | ||
a0d0e21e | 886 | perl_call_method("STORE", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
887 | |
888 | return 0; | |
889 | } | |
890 | ||
891 | int | |
892 | magic_clearpack(sv,mg) | |
893 | SV* sv; | |
894 | MAGIC* mg; | |
895 | { | |
a0d0e21e LW |
896 | return magic_methpack(sv,mg,"DELETE"); |
897 | } | |
463ee0b2 | 898 | |
a0d0e21e LW |
899 | int magic_wipepack(sv,mg) |
900 | SV* sv; | |
901 | MAGIC* mg; | |
902 | { | |
903 | dSP; | |
463ee0b2 | 904 | |
a0d0e21e LW |
905 | PUSHMARK(sp); |
906 | XPUSHs(mg->mg_obj); | |
463ee0b2 | 907 | PUTBACK; |
463ee0b2 | 908 | |
a0d0e21e | 909 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
910 | |
911 | return 0; | |
912 | } | |
913 | ||
914 | int | |
915 | magic_nextpack(sv,mg,key) | |
916 | SV* sv; | |
917 | MAGIC* mg; | |
918 | SV* key; | |
919 | { | |
463ee0b2 | 920 | dSP; |
a0d0e21e | 921 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
922 | |
923 | ENTER; | |
a0d0e21e LW |
924 | SAVETMPS; |
925 | PUSHMARK(sp); | |
926 | EXTEND(sp, 2); | |
927 | PUSHs(mg->mg_obj); | |
463ee0b2 LW |
928 | if (SvOK(key)) |
929 | PUSHs(key); | |
930 | PUTBACK; | |
931 | ||
a0d0e21e LW |
932 | if (perl_call_method(meth, G_SCALAR)) |
933 | sv_setsv(key, *stack_sp--); | |
463ee0b2 | 934 | |
a0d0e21e LW |
935 | FREETMPS; |
936 | LEAVE; | |
79072805 LW |
937 | return 0; |
938 | } | |
939 | ||
940 | int | |
a0d0e21e LW |
941 | magic_existspack(sv,mg) |
942 | SV* sv; | |
943 | MAGIC* mg; | |
944 | { | |
945 | return magic_methpack(sv,mg,"EXISTS"); | |
946 | } | |
947 | ||
948 | int | |
79072805 LW |
949 | magic_setdbline(sv,mg) |
950 | SV* sv; | |
951 | MAGIC* mg; | |
952 | { | |
953 | OP *o; | |
954 | I32 i; | |
955 | GV* gv; | |
956 | SV** svp; | |
957 | ||
958 | gv = DBline; | |
959 | i = SvTRUE(sv); | |
188ea221 CS |
960 | svp = av_fetch(GvAV(gv), |
961 | atoi(MgPV(mg)), FALSE); | |
8990e307 | 962 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 963 | o->op_private = i; |
79072805 LW |
964 | else |
965 | warn("Can't break at that line\n"); | |
966 | return 0; | |
967 | } | |
968 | ||
969 | int | |
970 | magic_getarylen(sv,mg) | |
971 | SV* sv; | |
972 | MAGIC* mg; | |
973 | { | |
a0d0e21e | 974 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 LW |
975 | return 0; |
976 | } | |
977 | ||
978 | int | |
979 | magic_setarylen(sv,mg) | |
980 | SV* sv; | |
981 | MAGIC* mg; | |
982 | { | |
a0d0e21e LW |
983 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
984 | return 0; | |
985 | } | |
986 | ||
987 | int | |
988 | magic_getpos(sv,mg) | |
989 | SV* sv; | |
990 | MAGIC* mg; | |
991 | { | |
992 | SV* lsv = LvTARG(sv); | |
993 | ||
994 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
995 | mg = mg_find(lsv, 'g'); | |
996 | if (mg && mg->mg_len >= 0) { | |
997 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); | |
998 | return 0; | |
999 | } | |
1000 | } | |
1001 | (void)SvOK_off(sv); | |
1002 | return 0; | |
1003 | } | |
1004 | ||
1005 | int | |
1006 | magic_setpos(sv,mg) | |
1007 | SV* sv; | |
1008 | MAGIC* mg; | |
1009 | { | |
1010 | SV* lsv = LvTARG(sv); | |
1011 | SSize_t pos; | |
1012 | STRLEN len; | |
1013 | ||
1014 | mg = 0; | |
1015 | ||
1016 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
1017 | mg = mg_find(lsv, 'g'); | |
1018 | if (!mg) { | |
1019 | if (!SvOK(sv)) | |
1020 | return 0; | |
1021 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1022 | mg = mg_find(lsv, 'g'); | |
1023 | } | |
1024 | else if (!SvOK(sv)) { | |
1025 | mg->mg_len = -1; | |
1026 | return 0; | |
1027 | } | |
1028 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1029 | ||
1030 | pos = SvIV(sv) - curcop->cop_arybase; | |
1031 | if (pos < 0) { | |
1032 | pos += len; | |
1033 | if (pos < 0) | |
1034 | pos = 0; | |
1035 | } | |
1036 | else if (pos > len) | |
1037 | pos = len; | |
1038 | mg->mg_len = pos; | |
71be2cbc | 1039 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1040 | |
79072805 LW |
1041 | return 0; |
1042 | } | |
1043 | ||
1044 | int | |
1045 | magic_getglob(sv,mg) | |
1046 | SV* sv; | |
1047 | MAGIC* mg; | |
1048 | { | |
8646b087 | 1049 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1050 | SvFAKE_off(sv); | |
946ec16e | 1051 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1052 | SvFAKE_on(sv); |
1053 | } | |
1054 | else | |
946ec16e | 1055 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1056 | return 0; |
1057 | } | |
1058 | ||
1059 | int | |
1060 | magic_setglob(sv,mg) | |
1061 | SV* sv; | |
1062 | MAGIC* mg; | |
1063 | { | |
1064 | register char *s; | |
1065 | GV* gv; | |
1066 | ||
1067 | if (!SvOK(sv)) | |
1068 | return 0; | |
463ee0b2 | 1069 | s = SvPV(sv, na); |
79072805 LW |
1070 | if (*s == '*' && s[1]) |
1071 | s++; | |
85e6fe83 | 1072 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1073 | if (sv == (SV*)gv) |
1074 | return 0; | |
1075 | if (GvGP(sv)) | |
88e89b8a | 1076 | gp_free((GV*)sv); |
79072805 | 1077 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1078 | return 0; |
1079 | } | |
1080 | ||
1081 | int | |
1082 | magic_setsubstr(sv,mg) | |
1083 | SV* sv; | |
1084 | MAGIC* mg; | |
1085 | { | |
8990e307 LW |
1086 | STRLEN len; |
1087 | char *tmps = SvPV(sv,len); | |
1088 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1089 | return 0; |
1090 | } | |
1091 | ||
1092 | int | |
463ee0b2 LW |
1093 | magic_gettaint(sv,mg) |
1094 | SV* sv; | |
1095 | MAGIC* mg; | |
1096 | { | |
bbce6d69 | 1097 | TAINT_IF((mg->mg_len & 1) || |
1098 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1099 | return 0; |
1100 | } | |
1101 | ||
1102 | int | |
1103 | magic_settaint(sv,mg) | |
1104 | SV* sv; | |
1105 | MAGIC* mg; | |
1106 | { | |
748a9306 LW |
1107 | if (localizing) { |
1108 | if (localizing == 1) | |
1109 | mg->mg_len <<= 1; | |
1110 | else | |
1111 | mg->mg_len >>= 1; | |
a0d0e21e | 1112 | } |
748a9306 LW |
1113 | else if (tainted) |
1114 | mg->mg_len |= 1; | |
1115 | else | |
1116 | mg->mg_len &= ~1; | |
463ee0b2 LW |
1117 | return 0; |
1118 | } | |
1119 | ||
1120 | int | |
79072805 LW |
1121 | magic_setvec(sv,mg) |
1122 | SV* sv; | |
1123 | MAGIC* mg; | |
1124 | { | |
1125 | do_vecset(sv); /* XXX slurp this routine */ | |
1126 | return 0; | |
1127 | } | |
1128 | ||
1129 | int | |
68dc0745 | 1130 | magic_getdefelem(sv,mg) |
5f05dabc | 1131 | SV* sv; |
1132 | MAGIC* mg; | |
1133 | { | |
71be2cbc | 1134 | SV *targ = Nullsv; |
5f05dabc | 1135 | if (LvTARGLEN(sv)) { |
68dc0745 | 1136 | if (mg->mg_obj) { |
1137 | HV* hv = (HV*)LvTARG(sv); | |
1138 | HE* he = hv_fetch_ent(hv, mg->mg_obj, FALSE, 0); | |
1139 | if (he) | |
1140 | targ = HeVAL(he); | |
1141 | } | |
1142 | else { | |
1143 | AV* av = (AV*)LvTARG(sv); | |
1144 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) | |
1145 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1146 | } | |
1147 | if (targ && targ != &sv_undef) { | |
1148 | /* somebody else defined it for us */ | |
1149 | SvREFCNT_dec(LvTARG(sv)); | |
1150 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1151 | LvTARGLEN(sv) = 0; | |
1152 | SvREFCNT_dec(mg->mg_obj); | |
1153 | mg->mg_obj = Nullsv; | |
1154 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1155 | } | |
5f05dabc | 1156 | } |
71be2cbc | 1157 | else |
1158 | targ = LvTARG(sv); | |
1159 | sv_setsv(sv, targ ? targ : &sv_undef); | |
1160 | return 0; | |
1161 | } | |
1162 | ||
1163 | int | |
68dc0745 | 1164 | magic_setdefelem(sv,mg) |
71be2cbc | 1165 | SV* sv; |
1166 | MAGIC* mg; | |
1167 | { | |
1168 | if (LvTARGLEN(sv)) | |
68dc0745 | 1169 | vivify_defelem(sv); |
1170 | if (LvTARG(sv)) { | |
5f05dabc | 1171 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1172 | SvSETMAGIC(LvTARG(sv)); |
1173 | } | |
5f05dabc | 1174 | return 0; |
1175 | } | |
1176 | ||
1177 | int | |
68dc0745 | 1178 | magic_freedefelem(sv,mg) |
5f05dabc | 1179 | SV* sv; |
1180 | MAGIC* mg; | |
1181 | { | |
1182 | SvREFCNT_dec(LvTARG(sv)); | |
71be2cbc | 1183 | return 0; |
1184 | } | |
1185 | ||
1186 | void | |
68dc0745 | 1187 | vivify_defelem(sv) |
71be2cbc | 1188 | SV* sv; |
1189 | { | |
68dc0745 | 1190 | MAGIC* mg; |
1191 | SV* value; | |
71be2cbc | 1192 | |
68dc0745 | 1193 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y'))) |
71be2cbc | 1194 | return; |
68dc0745 | 1195 | if (mg->mg_obj) { |
1196 | HV* hv = (HV*)LvTARG(sv); | |
1197 | HE* he = hv_fetch_ent(hv, mg->mg_obj, TRUE, 0); | |
1198 | if (!he || (value = HeVAL(he)) == &sv_undef) | |
1199 | croak(no_helem, SvPV(mg->mg_obj, na)); | |
71be2cbc | 1200 | } |
68dc0745 | 1201 | else { |
1202 | AV* av = (AV*)LvTARG(sv); | |
1203 | if (LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) | |
1204 | LvTARG(sv) = Nullsv; /* array can't be extended */ | |
1205 | else { | |
1206 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
1207 | if (!svp || (value = *svp) == &sv_undef) | |
1208 | croak(no_aelem, (I32)LvTARGOFF(sv)); | |
1209 | } | |
1210 | } | |
1211 | SvREFCNT_inc(value); | |
1212 | SvREFCNT_dec(LvTARG(sv)); | |
1213 | LvTARG(sv) = value; | |
71be2cbc | 1214 | LvTARGLEN(sv) = 0; |
68dc0745 | 1215 | SvREFCNT_dec(mg->mg_obj); |
1216 | mg->mg_obj = Nullsv; | |
1217 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1218 | } |
1219 | ||
1220 | int | |
93a17b20 LW |
1221 | magic_setmglob(sv,mg) |
1222 | SV* sv; | |
1223 | MAGIC* mg; | |
1224 | { | |
a0d0e21e | 1225 | mg->mg_len = -1; |
c6496cc7 | 1226 | SvSCREAM_off(sv); |
93a17b20 LW |
1227 | return 0; |
1228 | } | |
1229 | ||
1230 | int | |
79072805 LW |
1231 | magic_setbm(sv,mg) |
1232 | SV* sv; | |
1233 | MAGIC* mg; | |
1234 | { | |
463ee0b2 | 1235 | sv_unmagic(sv, 'B'); |
79072805 LW |
1236 | SvVALID_off(sv); |
1237 | return 0; | |
1238 | } | |
1239 | ||
1240 | int | |
55497cff | 1241 | magic_setfm(sv,mg) |
1242 | SV* sv; | |
1243 | MAGIC* mg; | |
1244 | { | |
1245 | sv_unmagic(sv, 'f'); | |
1246 | SvCOMPILED_off(sv); | |
1247 | return 0; | |
1248 | } | |
1249 | ||
1250 | int | |
79072805 LW |
1251 | magic_setuvar(sv,mg) |
1252 | SV* sv; | |
1253 | MAGIC* mg; | |
1254 | { | |
1255 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1256 | ||
1257 | if (uf && uf->uf_set) | |
1258 | (*uf->uf_set)(uf->uf_index, sv); | |
1259 | return 0; | |
1260 | } | |
1261 | ||
7a4c00b4 | 1262 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1263 | int |
bbce6d69 | 1264 | magic_setcollxfrm(sv,mg) |
1265 | SV* sv; | |
1266 | MAGIC* mg; | |
1267 | { | |
1268 | /* | |
1269 | * René Descartes said "I think not." | |
1270 | * and vanished with a faint plop. | |
1271 | */ | |
7a4c00b4 | 1272 | if (mg->mg_ptr) { |
1273 | Safefree(mg->mg_ptr); | |
1274 | mg->mg_ptr = NULL; | |
1275 | mg->mg_len = -1; | |
1276 | } | |
bbce6d69 | 1277 | return 0; |
1278 | } | |
7a4c00b4 | 1279 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1280 | |
1281 | int | |
79072805 LW |
1282 | magic_set(sv,mg) |
1283 | SV* sv; | |
1284 | MAGIC* mg; | |
1285 | { | |
1286 | register char *s; | |
1287 | I32 i; | |
8990e307 | 1288 | STRLEN len; |
79072805 | 1289 | switch (*mg->mg_ptr) { |
748a9306 LW |
1290 | case '\001': /* ^A */ |
1291 | sv_setsv(bodytarget, sv); | |
1292 | break; | |
79072805 | 1293 | case '\004': /* ^D */ |
8990e307 | 1294 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1295 | DEBUG_x(dump_all()); |
1296 | break; | |
28f23441 | 1297 | case '\005': /* ^E */ |
1298 | #ifdef VMS | |
1299 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1300 | #else | |
f86702cc | 1301 | /* will anyone ever use this? */ |
1302 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
28f23441 | 1303 | #endif |
1304 | break; | |
79072805 | 1305 | case '\006': /* ^F */ |
463ee0b2 | 1306 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1307 | break; |
a0d0e21e LW |
1308 | case '\010': /* ^H */ |
1309 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1310 | break; | |
79072805 LW |
1311 | case '\t': /* ^I */ |
1312 | if (inplace) | |
1313 | Safefree(inplace); | |
1314 | if (SvOK(sv)) | |
a0d0e21e | 1315 | inplace = savepv(SvPV(sv,na)); |
79072805 LW |
1316 | else |
1317 | inplace = Nullch; | |
1318 | break; | |
28f23441 | 1319 | case '\017': /* ^O */ |
1320 | if (osname) | |
1321 | Safefree(osname); | |
1322 | if (SvOK(sv)) | |
1323 | osname = savepv(SvPV(sv,na)); | |
1324 | else | |
1325 | osname = Nullch; | |
1326 | break; | |
79072805 | 1327 | case '\020': /* ^P */ |
463ee0b2 | 1328 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1329 | if (i != perldb) { |
1330 | if (perldb) | |
1331 | oldlastpm = curpm; | |
1332 | else | |
1333 | curpm = oldlastpm; | |
1334 | } | |
1335 | perldb = i; | |
1336 | break; | |
1337 | case '\024': /* ^T */ | |
88e89b8a | 1338 | #ifdef BIG_TIME |
1339 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); | |
1340 | #else | |
85e6fe83 | 1341 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1342 | #endif |
79072805 LW |
1343 | break; |
1344 | case '\027': /* ^W */ | |
463ee0b2 | 1345 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1346 | break; |
1347 | case '.': | |
748a9306 LW |
1348 | if (localizing) { |
1349 | if (localizing == 1) | |
1350 | save_sptr((SV**)&last_in_gv); | |
1351 | } | |
88e89b8a | 1352 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e | 1353 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 LW |
1354 | break; |
1355 | case '^': | |
a0d0e21e LW |
1356 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1357 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1358 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1359 | break; |
1360 | case '~': | |
a0d0e21e LW |
1361 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1362 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1363 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1364 | break; |
1365 | case '=': | |
a0d0e21e | 1366 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1367 | break; |
1368 | case '-': | |
a0d0e21e LW |
1369 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1370 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) | |
1371 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; | |
79072805 LW |
1372 | break; |
1373 | case '%': | |
a0d0e21e | 1374 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1375 | break; |
1376 | case '|': | |
a0d0e21e | 1377 | IoFLAGS(GvIOp(defoutgv)) &= ~IOf_FLUSH; |
463ee0b2 | 1378 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) != 0) { |
a0d0e21e | 1379 | IoFLAGS(GvIOp(defoutgv)) |= IOf_FLUSH; |
79072805 LW |
1380 | } |
1381 | break; | |
1382 | case '*': | |
463ee0b2 | 1383 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1384 | multiline = (i != 0); |
1385 | break; | |
1386 | case '/': | |
c07a80fd | 1387 | SvREFCNT_dec(nrs); |
1388 | nrs = newSVsv(sv); | |
1389 | SvREFCNT_dec(rs); | |
1390 | rs = SvREFCNT_inc(nrs); | |
79072805 LW |
1391 | break; |
1392 | case '\\': | |
1393 | if (ors) | |
1394 | Safefree(ors); | |
e3c19b7b CS |
1395 | if (SvOK(sv) || SvGMAGICAL(sv)) |
1396 | ors = savepv(SvPV(sv,orslen)); | |
1397 | else { | |
1398 | ors = Nullch; | |
1399 | orslen = 0; | |
1400 | } | |
79072805 LW |
1401 | break; |
1402 | case ',': | |
1403 | if (ofs) | |
1404 | Safefree(ofs); | |
a0d0e21e | 1405 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 LW |
1406 | break; |
1407 | case '#': | |
1408 | if (ofmt) | |
1409 | Safefree(ofmt); | |
a0d0e21e | 1410 | ofmt = savepv(SvPV(sv,na)); |
79072805 LW |
1411 | break; |
1412 | case '[': | |
a0d0e21e | 1413 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1414 | break; |
1415 | case '?': | |
ff0cee69 | 1416 | #ifdef COMPLEX_STATUS |
1417 | if (localizing == 2) { | |
1418 | statusvalue = LvTARGOFF(sv); | |
1419 | statusvalue_vms = LvTARGLEN(sv); | |
1420 | } | |
1421 | else | |
1422 | #endif | |
1423 | #ifdef VMSISH_STATUS | |
1424 | if (VMSISH_STATUS) | |
1425 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1426 | else | |
1427 | #endif | |
1428 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1429 | break; |
1430 | case '!': | |
f86702cc | 1431 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), |
1432 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); | |
79072805 LW |
1433 | break; |
1434 | case '<': | |
463ee0b2 | 1435 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1436 | if (delaymagic) { |
1437 | delaymagic |= DM_RUID; | |
1438 | break; /* don't do magic till later */ | |
1439 | } | |
1440 | #ifdef HAS_SETRUID | |
85e6fe83 | 1441 | (void)setruid((Uid_t)uid); |
79072805 LW |
1442 | #else |
1443 | #ifdef HAS_SETREUID | |
85e6fe83 | 1444 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 | 1445 | #else |
85e6fe83 LW |
1446 | #ifdef HAS_SETRESUID |
1447 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); | |
79072805 LW |
1448 | #else |
1449 | if (uid == euid) /* special case $< = $> */ | |
1450 | (void)setuid(uid); | |
a0d0e21e LW |
1451 | else { |
1452 | uid = (I32)getuid(); | |
463ee0b2 | 1453 | croak("setruid() not implemented"); |
a0d0e21e | 1454 | } |
79072805 LW |
1455 | #endif |
1456 | #endif | |
85e6fe83 | 1457 | #endif |
748a9306 | 1458 | uid = (I32)getuid(); |
4633a7c4 | 1459 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1460 | break; |
1461 | case '>': | |
463ee0b2 | 1462 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1463 | if (delaymagic) { |
1464 | delaymagic |= DM_EUID; | |
1465 | break; /* don't do magic till later */ | |
1466 | } | |
1467 | #ifdef HAS_SETEUID | |
85e6fe83 | 1468 | (void)seteuid((Uid_t)euid); |
79072805 LW |
1469 | #else |
1470 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1471 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1472 | #else | |
1473 | #ifdef HAS_SETRESUID | |
1474 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); | |
79072805 LW |
1475 | #else |
1476 | if (euid == uid) /* special case $> = $< */ | |
1477 | setuid(euid); | |
a0d0e21e LW |
1478 | else { |
1479 | euid = (I32)geteuid(); | |
463ee0b2 | 1480 | croak("seteuid() not implemented"); |
a0d0e21e | 1481 | } |
79072805 LW |
1482 | #endif |
1483 | #endif | |
85e6fe83 | 1484 | #endif |
79072805 | 1485 | euid = (I32)geteuid(); |
4633a7c4 | 1486 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1487 | break; |
1488 | case '(': | |
463ee0b2 | 1489 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1490 | if (delaymagic) { |
1491 | delaymagic |= DM_RGID; | |
1492 | break; /* don't do magic till later */ | |
1493 | } | |
1494 | #ifdef HAS_SETRGID | |
85e6fe83 | 1495 | (void)setrgid((Gid_t)gid); |
79072805 LW |
1496 | #else |
1497 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1498 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1499 | #else | |
1500 | #ifdef HAS_SETRESGID | |
1501 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); | |
79072805 LW |
1502 | #else |
1503 | if (gid == egid) /* special case $( = $) */ | |
1504 | (void)setgid(gid); | |
748a9306 LW |
1505 | else { |
1506 | gid = (I32)getgid(); | |
463ee0b2 | 1507 | croak("setrgid() not implemented"); |
748a9306 | 1508 | } |
79072805 LW |
1509 | #endif |
1510 | #endif | |
85e6fe83 | 1511 | #endif |
79072805 | 1512 | gid = (I32)getgid(); |
4633a7c4 | 1513 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1514 | break; |
1515 | case ')': | |
463ee0b2 | 1516 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1517 | if (delaymagic) { |
1518 | delaymagic |= DM_EGID; | |
1519 | break; /* don't do magic till later */ | |
1520 | } | |
1521 | #ifdef HAS_SETEGID | |
85e6fe83 | 1522 | (void)setegid((Gid_t)egid); |
79072805 LW |
1523 | #else |
1524 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1525 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1526 | #else | |
1527 | #ifdef HAS_SETRESGID | |
1528 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); | |
79072805 LW |
1529 | #else |
1530 | if (egid == gid) /* special case $) = $( */ | |
1531 | (void)setgid(egid); | |
748a9306 LW |
1532 | else { |
1533 | egid = (I32)getegid(); | |
463ee0b2 | 1534 | croak("setegid() not implemented"); |
748a9306 | 1535 | } |
79072805 LW |
1536 | #endif |
1537 | #endif | |
85e6fe83 | 1538 | #endif |
79072805 | 1539 | egid = (I32)getegid(); |
4633a7c4 | 1540 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1541 | break; |
1542 | case ':': | |
a0d0e21e | 1543 | chopset = SvPV_force(sv,na); |
79072805 LW |
1544 | break; |
1545 | case '0': | |
1546 | if (!origalen) { | |
1547 | s = origargv[0]; | |
1548 | s += strlen(s); | |
1549 | /* See if all the arguments are contiguous in memory */ | |
1550 | for (i = 1; i < origargc; i++) { | |
1551 | if (origargv[i] == s + 1) | |
1552 | s += strlen(++s); /* this one is ok too */ | |
1553 | } | |
bbce6d69 | 1554 | /* can grab env area too? */ |
1555 | if (origenviron && origenviron[0] == s + 1) { | |
79072805 LW |
1556 | my_setenv("NoNeSuCh", Nullch); |
1557 | /* force copy of environment */ | |
1558 | for (i = 0; origenviron[i]; i++) | |
1559 | if (origenviron[i] == s + 1) | |
1560 | s += strlen(++s); | |
1561 | } | |
1562 | origalen = s - origargv[0]; | |
1563 | } | |
a0d0e21e | 1564 | s = SvPV_force(sv,len); |
8990e307 | 1565 | i = len; |
79072805 LW |
1566 | if (i >= origalen) { |
1567 | i = origalen; | |
1568 | SvCUR_set(sv, i); | |
1569 | *SvEND(sv) = '\0'; | |
1570 | Copy(s, origargv[0], i, char); | |
1571 | } | |
1572 | else { | |
1573 | Copy(s, origargv[0], i, char); | |
1574 | s = origargv[0]+i; | |
1575 | *s++ = '\0'; | |
1576 | while (++i < origalen) | |
8990e307 LW |
1577 | *s++ = ' '; |
1578 | s = origargv[0]+i; | |
ed6116ce | 1579 | for (i = 1; i < origargc; i++) |
8990e307 | 1580 | origargv[i] = Nullch; |
79072805 LW |
1581 | } |
1582 | break; | |
1583 | } | |
1584 | return 0; | |
1585 | } | |
1586 | ||
1587 | I32 | |
1588 | whichsig(sig) | |
1589 | char *sig; | |
1590 | { | |
1591 | register char **sigv; | |
1592 | ||
1593 | for (sigv = sig_name+1; *sigv; sigv++) | |
1594 | if (strEQ(sig,*sigv)) | |
8e07c86e | 1595 | return sig_num[sigv - sig_name]; |
79072805 LW |
1596 | #ifdef SIGCLD |
1597 | if (strEQ(sig,"CHLD")) | |
1598 | return SIGCLD; | |
1599 | #endif | |
1600 | #ifdef SIGCHLD | |
1601 | if (strEQ(sig,"CLD")) | |
1602 | return SIGCHLD; | |
1603 | #endif | |
1604 | return 0; | |
1605 | } | |
1606 | ||
ecfc5424 | 1607 | Signal_t |
79072805 | 1608 | sighandler(sig) |
a0d0e21e | 1609 | int sig; |
79072805 LW |
1610 | { |
1611 | dSP; | |
1612 | GV *gv; | |
a0d0e21e | 1613 | HV *st; |
79072805 LW |
1614 | SV *sv; |
1615 | CV *cv; | |
79072805 | 1616 | AV *oldstack; |
ff0cee69 | 1617 | |
1618 | if (!psig_ptr[sig]) | |
1619 | die("Signal SIG%s received, but no signal handler set.\n", | |
1620 | sig_name[sig]); | |
1621 | ||
88e89b8a | 1622 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); |
a0d0e21e | 1623 | if (!cv || !CvROOT(cv)) { |
79072805 LW |
1624 | if (dowarn) |
1625 | warn("SIG%s handler \"%s\" not defined.\n", | |
88e89b8a | 1626 | sig_name[sig], GvENAME(gv) ); |
79072805 LW |
1627 | return; |
1628 | } | |
1629 | ||
88e89b8a | 1630 | oldstack = curstack; |
1631 | if (curstack != signalstack) | |
a0d0e21e | 1632 | AvFILL(signalstack) = 0; |
88e89b8a | 1633 | SWITCHSTACK(curstack, signalstack); |
79072805 | 1634 | |
88e89b8a | 1635 | if(psig_name[sig]) |
1636 | sv = SvREFCNT_inc(psig_name[sig]); | |
1637 | else { | |
ff0cee69 | 1638 | sv = sv_newmortal(); |
1639 | sv_setpv(sv,sig_name[sig]); | |
88e89b8a | 1640 | } |
a0d0e21e | 1641 | PUSHMARK(sp); |
79072805 | 1642 | PUSHs(sv); |
79072805 | 1643 | PUTBACK; |
a0d0e21e LW |
1644 | |
1645 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 LW |
1646 | |
1647 | SWITCHSTACK(signalstack, oldstack); | |
4bf61a0f | 1648 | |
79072805 LW |
1649 | return; |
1650 | } |