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 | ||
a0d0e21e LW |
18 | /* Omit -- it causes too much grief on mixed systems. |
19 | #ifdef I_UNISTD | |
20 | # include <unistd.h> | |
21 | #endif | |
22 | */ | |
23 | ||
8990e307 LW |
24 | void |
25 | mg_magical(sv) | |
26 | SV* sv; | |
27 | { | |
28 | MAGIC* mg; | |
29 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
30 | MGVTBL* vtbl = mg->mg_virtual; | |
31 | if (vtbl) { | |
a0d0e21e | 32 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
33 | SvGMAGICAL_on(sv); |
34 | if (vtbl->svt_set) | |
35 | SvSMAGICAL_on(sv); | |
36 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) | |
37 | SvRMAGICAL_on(sv); | |
38 | } | |
39 | } | |
40 | } | |
41 | ||
79072805 LW |
42 | int |
43 | mg_get(sv) | |
44 | SV* sv; | |
45 | { | |
46 | MAGIC* mg; | |
a0d0e21e | 47 | U32 savemagic = SvMAGICAL(sv) | SvREADONLY(sv); |
463ee0b2 | 48 | |
a0d0e21e | 49 | assert(SvGMAGICAL(sv)); |
463ee0b2 | 50 | SvMAGICAL_off(sv); |
a0d0e21e | 51 | SvREADONLY_off(sv); |
8990e307 | 52 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 | 53 | |
79072805 LW |
54 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
55 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e | 56 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
79072805 | 57 | (*vtbl->svt_get)(sv, mg); |
a0d0e21e LW |
58 | if (mg->mg_flags & MGf_GSKIP) |
59 | savemagic = 0; | |
60 | } | |
79072805 | 61 | } |
463ee0b2 | 62 | |
a0d0e21e LW |
63 | if (savemagic) |
64 | SvFLAGS(sv) |= savemagic; | |
65 | else | |
66 | mg_magical(sv); | |
67 | if (SvGMAGICAL(sv)) | |
68 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
463ee0b2 | 69 | |
79072805 LW |
70 | return 0; |
71 | } | |
72 | ||
73 | int | |
74 | mg_set(sv) | |
75 | SV* sv; | |
76 | { | |
77 | MAGIC* mg; | |
463ee0b2 | 78 | MAGIC* nextmg; |
8990e307 | 79 | U32 savemagic = SvMAGICAL(sv); |
463ee0b2 LW |
80 | |
81 | SvMAGICAL_off(sv); | |
82 | ||
83 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 84 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 85 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
86 | if (mg->mg_flags & MGf_GSKIP) { |
87 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
88 | savemagic = 0; | |
89 | } | |
79072805 LW |
90 | if (vtbl && vtbl->svt_set) |
91 | (*vtbl->svt_set)(sv, mg); | |
92 | } | |
463ee0b2 LW |
93 | |
94 | if (SvMAGIC(sv)) { | |
a0d0e21e LW |
95 | if (savemagic) |
96 | SvFLAGS(sv) |= savemagic; | |
97 | else | |
98 | mg_magical(sv); | |
8990e307 LW |
99 | if (SvGMAGICAL(sv)) |
100 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
463ee0b2 LW |
101 | } |
102 | ||
79072805 LW |
103 | return 0; |
104 | } | |
105 | ||
106 | U32 | |
107 | mg_len(sv) | |
108 | SV* sv; | |
109 | { | |
110 | MAGIC* mg; | |
463ee0b2 LW |
111 | char *s; |
112 | STRLEN len; | |
463ee0b2 | 113 | |
79072805 LW |
114 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
115 | MGVTBL* vtbl = mg->mg_virtual; | |
85e6fe83 LW |
116 | if (vtbl && vtbl->svt_len) { |
117 | U32 savemagic = SvMAGICAL(sv); | |
463ee0b2 | 118 | |
85e6fe83 LW |
119 | SvMAGICAL_off(sv); |
120 | SvFLAGS(sv) |= (SvFLAGS(sv)&(SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
121 | ||
a0d0e21e | 122 | /* omit MGf_GSKIP -- not changed here */ |
85e6fe83 | 123 | len = (*vtbl->svt_len)(sv, mg); |
463ee0b2 | 124 | |
85e6fe83 LW |
125 | SvFLAGS(sv) |= savemagic; |
126 | if (SvGMAGICAL(sv)) | |
127 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
128 | ||
129 | return len; | |
130 | } | |
131 | } | |
132 | ||
133 | s = SvPV(sv, len); | |
463ee0b2 | 134 | return len; |
79072805 LW |
135 | } |
136 | ||
137 | int | |
138 | mg_clear(sv) | |
139 | SV* sv; | |
140 | { | |
141 | MAGIC* mg; | |
8990e307 | 142 | U32 savemagic = SvMAGICAL(sv); |
463ee0b2 LW |
143 | |
144 | SvMAGICAL_off(sv); | |
8990e307 | 145 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 | 146 | |
79072805 LW |
147 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
148 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
149 | /* omit GSKIP -- never set here */ |
150 | ||
79072805 LW |
151 | if (vtbl && vtbl->svt_clear) |
152 | (*vtbl->svt_clear)(sv, mg); | |
153 | } | |
463ee0b2 | 154 | |
8990e307 LW |
155 | SvFLAGS(sv) |= savemagic; |
156 | if (SvGMAGICAL(sv)) | |
157 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
463ee0b2 | 158 | |
79072805 LW |
159 | return 0; |
160 | } | |
161 | ||
93a17b20 LW |
162 | MAGIC* |
163 | mg_find(sv, type) | |
164 | SV* sv; | |
a0d0e21e | 165 | int type; |
93a17b20 LW |
166 | { |
167 | MAGIC* mg; | |
93a17b20 LW |
168 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
169 | if (mg->mg_type == type) | |
170 | return mg; | |
171 | } | |
172 | return 0; | |
173 | } | |
174 | ||
79072805 | 175 | int |
463ee0b2 | 176 | mg_copy(sv, nsv, key, klen) |
79072805 | 177 | SV* sv; |
463ee0b2 LW |
178 | SV* nsv; |
179 | char *key; | |
180 | STRLEN klen; | |
79072805 | 181 | { |
463ee0b2 | 182 | int count = 0; |
79072805 | 183 | MAGIC* mg; |
463ee0b2 LW |
184 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
185 | if (isUPPER(mg->mg_type)) { | |
a0d0e21e | 186 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 187 | count++; |
79072805 | 188 | } |
79072805 | 189 | } |
463ee0b2 | 190 | return count; |
79072805 LW |
191 | } |
192 | ||
193 | int | |
463ee0b2 | 194 | mg_free(sv) |
79072805 LW |
195 | SV* sv; |
196 | { | |
197 | MAGIC* mg; | |
198 | MAGIC* moremagic; | |
199 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
200 | MGVTBL* vtbl = mg->mg_virtual; | |
201 | moremagic = mg->mg_moremagic; | |
202 | if (vtbl && vtbl->svt_free) | |
203 | (*vtbl->svt_free)(sv, mg); | |
93a17b20 | 204 | if (mg->mg_ptr && mg->mg_type != 'g') |
79072805 | 205 | Safefree(mg->mg_ptr); |
85e6fe83 | 206 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 207 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
208 | Safefree(mg); |
209 | } | |
210 | SvMAGIC(sv) = 0; | |
211 | return 0; | |
212 | } | |
213 | ||
214 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
215 | #include <signal.h> | |
216 | #endif | |
217 | ||
93a17b20 LW |
218 | U32 |
219 | magic_len(sv, mg) | |
220 | SV *sv; | |
221 | MAGIC *mg; | |
222 | { | |
223 | register I32 paren; | |
224 | register char *s; | |
225 | register I32 i; | |
226 | ||
227 | switch (*mg->mg_ptr) { | |
228 | case '1': case '2': case '3': case '4': | |
229 | case '5': case '6': case '7': case '8': case '9': case '&': | |
230 | if (curpm) { | |
231 | paren = atoi(mg->mg_ptr); | |
232 | getparen: | |
233 | if (curpm->op_pmregexp && | |
234 | paren <= curpm->op_pmregexp->nparens && | |
235 | (s = curpm->op_pmregexp->startp[paren]) ) { | |
236 | i = curpm->op_pmregexp->endp[paren] - s; | |
237 | if (i >= 0) | |
238 | return i; | |
239 | else | |
240 | return 0; | |
241 | } | |
242 | else | |
243 | return 0; | |
244 | } | |
245 | break; | |
246 | case '+': | |
247 | if (curpm) { | |
248 | paren = curpm->op_pmregexp->lastparen; | |
a0d0e21e LW |
249 | if (!paren) |
250 | return 0; | |
93a17b20 LW |
251 | goto getparen; |
252 | } | |
253 | break; | |
254 | case '`': | |
255 | if (curpm) { | |
256 | if (curpm->op_pmregexp && | |
257 | (s = curpm->op_pmregexp->subbeg) ) { | |
258 | i = curpm->op_pmregexp->startp[0] - s; | |
259 | if (i >= 0) | |
260 | return i; | |
261 | else | |
262 | return 0; | |
263 | } | |
264 | else | |
265 | return 0; | |
266 | } | |
267 | break; | |
268 | case '\'': | |
269 | if (curpm) { | |
270 | if (curpm->op_pmregexp && | |
271 | (s = curpm->op_pmregexp->endp[0]) ) { | |
272 | return (STRLEN) (curpm->op_pmregexp->subend - s); | |
273 | } | |
274 | else | |
275 | return 0; | |
276 | } | |
277 | break; | |
278 | case ',': | |
279 | return (STRLEN)ofslen; | |
280 | case '\\': | |
281 | return (STRLEN)orslen; | |
282 | } | |
283 | magic_get(sv,mg); | |
284 | if (!SvPOK(sv) && SvNIOK(sv)) | |
463ee0b2 | 285 | sv_2pv(sv, &na); |
93a17b20 LW |
286 | if (SvPOK(sv)) |
287 | return SvCUR(sv); | |
288 | return 0; | |
289 | } | |
290 | ||
79072805 LW |
291 | int |
292 | magic_get(sv, mg) | |
293 | SV *sv; | |
294 | MAGIC *mg; | |
295 | { | |
296 | register I32 paren; | |
297 | register char *s; | |
298 | register I32 i; | |
299 | ||
300 | switch (*mg->mg_ptr) { | |
301 | case '\004': /* ^D */ | |
302 | sv_setiv(sv,(I32)(debug & 32767)); | |
303 | break; | |
304 | case '\006': /* ^F */ | |
305 | sv_setiv(sv,(I32)maxsysfd); | |
306 | break; | |
a0d0e21e LW |
307 | case '\010': /* ^H */ |
308 | sv_setiv(sv,(I32)hints); | |
309 | break; | |
79072805 LW |
310 | case '\t': /* ^I */ |
311 | if (inplace) | |
312 | sv_setpv(sv, inplace); | |
313 | else | |
314 | sv_setsv(sv,&sv_undef); | |
315 | break; | |
316 | case '\020': /* ^P */ | |
317 | sv_setiv(sv,(I32)perldb); | |
318 | break; | |
319 | case '\024': /* ^T */ | |
320 | sv_setiv(sv,(I32)basetime); | |
321 | break; | |
322 | case '\027': /* ^W */ | |
323 | sv_setiv(sv,(I32)dowarn); | |
324 | break; | |
325 | case '1': case '2': case '3': case '4': | |
326 | case '5': case '6': case '7': case '8': case '9': case '&': | |
327 | if (curpm) { | |
328 | paren = atoi(GvENAME(mg->mg_obj)); | |
329 | getparen: | |
330 | if (curpm->op_pmregexp && | |
331 | paren <= curpm->op_pmregexp->nparens && | |
a0d0e21e LW |
332 | (s = curpm->op_pmregexp->startp[paren]) && |
333 | curpm->op_pmregexp->endp[paren] ) { | |
79072805 LW |
334 | i = curpm->op_pmregexp->endp[paren] - s; |
335 | if (i >= 0) | |
336 | sv_setpvn(sv,s,i); | |
337 | else | |
338 | sv_setsv(sv,&sv_undef); | |
339 | } | |
340 | else | |
341 | sv_setsv(sv,&sv_undef); | |
342 | } | |
343 | break; | |
344 | case '+': | |
345 | if (curpm) { | |
346 | paren = curpm->op_pmregexp->lastparen; | |
a0d0e21e LW |
347 | if (paren) |
348 | goto getparen; | |
349 | else | |
350 | sv_setsv(sv,&sv_undef); | |
79072805 LW |
351 | } |
352 | break; | |
353 | case '`': | |
354 | if (curpm) { | |
355 | if (curpm->op_pmregexp && | |
356 | (s = curpm->op_pmregexp->subbeg) ) { | |
357 | i = curpm->op_pmregexp->startp[0] - s; | |
358 | if (i >= 0) | |
359 | sv_setpvn(sv,s,i); | |
360 | else | |
361 | sv_setpvn(sv,"",0); | |
362 | } | |
363 | else | |
364 | sv_setpvn(sv,"",0); | |
365 | } | |
366 | break; | |
367 | case '\'': | |
368 | if (curpm) { | |
369 | if (curpm->op_pmregexp && | |
370 | (s = curpm->op_pmregexp->endp[0]) ) { | |
371 | sv_setpvn(sv,s, curpm->op_pmregexp->subend - s); | |
372 | } | |
373 | else | |
374 | sv_setpvn(sv,"",0); | |
375 | } | |
376 | break; | |
377 | case '.': | |
378 | #ifndef lint | |
a0d0e21e | 379 | if (GvIO(last_in_gv)) { |
8990e307 | 380 | sv_setiv(sv,(I32)IoLINES(GvIO(last_in_gv))); |
79072805 LW |
381 | } |
382 | #endif | |
383 | break; | |
384 | case '?': | |
385 | sv_setiv(sv,(I32)statusvalue); | |
386 | break; | |
387 | case '^': | |
a0d0e21e | 388 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 LW |
389 | if (s) |
390 | sv_setpv(sv,s); | |
391 | else { | |
392 | sv_setpv(sv,GvENAME(defoutgv)); | |
393 | sv_catpv(sv,"_TOP"); | |
394 | } | |
395 | break; | |
396 | case '~': | |
a0d0e21e | 397 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 LW |
398 | if (!s) |
399 | s = GvENAME(defoutgv); | |
400 | sv_setpv(sv,s); | |
401 | break; | |
402 | #ifndef lint | |
403 | case '=': | |
a0d0e21e | 404 | sv_setiv(sv,(I32)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 LW |
405 | break; |
406 | case '-': | |
a0d0e21e | 407 | sv_setiv(sv,(I32)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 LW |
408 | break; |
409 | case '%': | |
a0d0e21e | 410 | sv_setiv(sv,(I32)IoPAGE(GvIOp(defoutgv))); |
79072805 LW |
411 | break; |
412 | #endif | |
413 | case ':': | |
414 | break; | |
415 | case '/': | |
416 | break; | |
417 | case '[': | |
a0d0e21e | 418 | sv_setiv(sv,(I32)curcop->cop_arybase); |
79072805 LW |
419 | break; |
420 | case '|': | |
a0d0e21e | 421 | sv_setiv(sv, (IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
422 | break; |
423 | case ',': | |
424 | sv_setpvn(sv,ofs,ofslen); | |
425 | break; | |
426 | case '\\': | |
427 | sv_setpvn(sv,ors,orslen); | |
428 | break; | |
429 | case '#': | |
430 | sv_setpv(sv,ofmt); | |
431 | break; | |
432 | case '!': | |
433 | sv_setnv(sv,(double)errno); | |
2304df62 | 434 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
79072805 LW |
435 | SvNOK_on(sv); /* what a wonderful hack! */ |
436 | break; | |
437 | case '<': | |
438 | sv_setiv(sv,(I32)uid); | |
439 | break; | |
440 | case '>': | |
441 | sv_setiv(sv,(I32)euid); | |
442 | break; | |
443 | case '(': | |
444 | s = buf; | |
445 | (void)sprintf(s,"%d",(int)gid); | |
446 | goto add_groups; | |
447 | case ')': | |
448 | s = buf; | |
449 | (void)sprintf(s,"%d",(int)egid); | |
450 | add_groups: | |
451 | while (*s) s++; | |
452 | #ifdef HAS_GETGROUPS | |
453 | #ifndef NGROUPS | |
454 | #define NGROUPS 32 | |
455 | #endif | |
456 | { | |
a0d0e21e | 457 | Groups_t gary[NGROUPS]; |
79072805 LW |
458 | |
459 | i = getgroups(NGROUPS,gary); | |
460 | while (--i >= 0) { | |
461 | (void)sprintf(s," %ld", (long)gary[i]); | |
462 | while (*s) s++; | |
463 | } | |
464 | } | |
465 | #endif | |
466 | sv_setpv(sv,buf); | |
467 | break; | |
468 | case '*': | |
469 | break; | |
470 | case '0': | |
471 | break; | |
472 | } | |
a0d0e21e | 473 | return 0; |
79072805 LW |
474 | } |
475 | ||
476 | int | |
477 | magic_getuvar(sv, mg) | |
478 | SV *sv; | |
479 | MAGIC *mg; | |
480 | { | |
481 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
482 | ||
483 | if (uf && uf->uf_val) | |
484 | (*uf->uf_val)(uf->uf_index, sv); | |
485 | return 0; | |
486 | } | |
487 | ||
488 | int | |
489 | magic_setenv(sv,mg) | |
490 | SV* sv; | |
491 | MAGIC* mg; | |
492 | { | |
493 | register char *s; | |
a0d0e21e LW |
494 | STRLEN len; |
495 | I32 i; | |
496 | s = SvPV(sv,len); | |
79072805 | 497 | my_setenv(mg->mg_ptr,s); |
a0d0e21e LW |
498 | #ifdef DYNAMIC_ENV_FETCH |
499 | /* We just undefd an environment var. Is a replacement */ | |
500 | /* waiting in the wings? */ | |
501 | if (!len) { | |
502 | SV **envsvp; | |
503 | if (envsvp = hv_fetch(GvHVn(envgv),mg->mg_ptr,mg->mg_len,FALSE)) | |
504 | s = SvPV(*envsvp,len); | |
505 | } | |
506 | #endif | |
79072805 LW |
507 | /* And you'll never guess what the dog had */ |
508 | /* in its mouth... */ | |
463ee0b2 LW |
509 | if (tainting) { |
510 | if (s && strEQ(mg->mg_ptr,"PATH")) { | |
a0d0e21e | 511 | char *strend = s + len; |
463ee0b2 LW |
512 | |
513 | while (s < strend) { | |
514 | s = cpytill(tokenbuf,s,strend,':',&i); | |
515 | s++; | |
516 | if (*tokenbuf != '/' | |
a0d0e21e | 517 | || (Stat(tokenbuf,&statbuf) && (statbuf.st_mode & 2)) ) |
8990e307 | 518 | MgTAINTEDDIR_on(mg); |
463ee0b2 | 519 | } |
79072805 LW |
520 | } |
521 | } | |
79072805 LW |
522 | return 0; |
523 | } | |
524 | ||
525 | int | |
85e6fe83 LW |
526 | magic_clearenv(sv,mg) |
527 | SV* sv; | |
528 | MAGIC* mg; | |
529 | { | |
530 | my_setenv(mg->mg_ptr,Nullch); | |
531 | return 0; | |
532 | } | |
533 | ||
534 | int | |
79072805 LW |
535 | magic_setsig(sv,mg) |
536 | SV* sv; | |
537 | MAGIC* mg; | |
538 | { | |
539 | register char *s; | |
540 | I32 i; | |
a0d0e21e | 541 | |
79072805 LW |
542 | i = whichsig(mg->mg_ptr); /* ...no, a brick */ |
543 | if (!i && (dowarn || strEQ(mg->mg_ptr,"ALARM"))) | |
544 | warn("No such signal: SIG%s", mg->mg_ptr); | |
a0d0e21e LW |
545 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
546 | (void)signal(i,sighandler); | |
547 | return 0; | |
548 | } | |
549 | s = SvPV_force(sv,na); | |
79072805 LW |
550 | if (strEQ(s,"IGNORE")) |
551 | #ifndef lint | |
552 | (void)signal(i,SIG_IGN); | |
553 | #else | |
554 | ; | |
555 | #endif | |
556 | else if (strEQ(s,"DEFAULT") || !*s) | |
557 | (void)signal(i,SIG_DFL); | |
558 | else { | |
559 | (void)signal(i,sighandler); | |
2304df62 AD |
560 | if (!strchr(s,':') && !strchr(s,'\'')) { |
561 | sprintf(tokenbuf, "main::%s",s); | |
79072805 LW |
562 | sv_setpv(sv,tokenbuf); |
563 | } | |
564 | } | |
565 | return 0; | |
566 | } | |
567 | ||
568 | int | |
463ee0b2 | 569 | magic_setisa(sv,mg) |
79072805 LW |
570 | SV* sv; |
571 | MAGIC* mg; | |
572 | { | |
463ee0b2 LW |
573 | sub_generation++; |
574 | return 0; | |
575 | } | |
576 | ||
a0d0e21e LW |
577 | #ifdef OVERLOAD |
578 | ||
463ee0b2 | 579 | int |
a0d0e21e | 580 | magic_setamagic(sv,mg) |
463ee0b2 LW |
581 | SV* sv; |
582 | MAGIC* mg; | |
583 | { | |
a0d0e21e LW |
584 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
585 | amagic_generation++; | |
463ee0b2 | 586 | |
a0d0e21e LW |
587 | return 0; |
588 | } | |
589 | #endif /* OVERLOAD */ | |
463ee0b2 | 590 | |
a0d0e21e LW |
591 | static int |
592 | magic_methpack(sv,mg,meth) | |
593 | SV* sv; | |
594 | MAGIC* mg; | |
595 | char *meth; | |
596 | { | |
597 | dSP; | |
463ee0b2 | 598 | |
a0d0e21e LW |
599 | ENTER; |
600 | SAVETMPS; | |
601 | PUSHMARK(sp); | |
602 | EXTEND(sp, 2); | |
603 | PUSHs(mg->mg_obj); | |
463ee0b2 | 604 | if (mg->mg_ptr) |
a0d0e21e LW |
605 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
606 | else if (mg->mg_type == 'p') | |
607 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
608 | PUTBACK; |
609 | ||
a0d0e21e LW |
610 | if (perl_call_method(meth, G_SCALAR)) |
611 | sv_setsv(sv, *stack_sp--); | |
463ee0b2 | 612 | |
a0d0e21e LW |
613 | FREETMPS; |
614 | LEAVE; | |
615 | return 0; | |
616 | } | |
463ee0b2 | 617 | |
a0d0e21e LW |
618 | int |
619 | magic_getpack(sv,mg) | |
620 | SV* sv; | |
621 | MAGIC* mg; | |
622 | { | |
623 | magic_methpack(sv,mg,"FETCH"); | |
624 | if (mg->mg_ptr) | |
625 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
626 | return 0; |
627 | } | |
628 | ||
629 | int | |
630 | magic_setpack(sv,mg) | |
631 | SV* sv; | |
632 | MAGIC* mg; | |
633 | { | |
463ee0b2 | 634 | dSP; |
463ee0b2 | 635 | |
a0d0e21e LW |
636 | PUSHMARK(sp); |
637 | EXTEND(sp, 3); | |
638 | PUSHs(mg->mg_obj); | |
463ee0b2 | 639 | if (mg->mg_ptr) |
a0d0e21e LW |
640 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
641 | else if (mg->mg_type == 'p') | |
642 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
643 | PUSHs(sv); |
644 | PUTBACK; | |
645 | ||
a0d0e21e | 646 | perl_call_method("STORE", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
647 | |
648 | return 0; | |
649 | } | |
650 | ||
651 | int | |
652 | magic_clearpack(sv,mg) | |
653 | SV* sv; | |
654 | MAGIC* mg; | |
655 | { | |
a0d0e21e LW |
656 | return magic_methpack(sv,mg,"DELETE"); |
657 | } | |
463ee0b2 | 658 | |
a0d0e21e LW |
659 | int magic_wipepack(sv,mg) |
660 | SV* sv; | |
661 | MAGIC* mg; | |
662 | { | |
663 | dSP; | |
463ee0b2 | 664 | |
a0d0e21e LW |
665 | PUSHMARK(sp); |
666 | XPUSHs(mg->mg_obj); | |
463ee0b2 | 667 | PUTBACK; |
463ee0b2 | 668 | |
a0d0e21e | 669 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
670 | |
671 | return 0; | |
672 | } | |
673 | ||
674 | int | |
675 | magic_nextpack(sv,mg,key) | |
676 | SV* sv; | |
677 | MAGIC* mg; | |
678 | SV* key; | |
679 | { | |
463ee0b2 | 680 | dSP; |
a0d0e21e | 681 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
682 | |
683 | ENTER; | |
a0d0e21e LW |
684 | SAVETMPS; |
685 | PUSHMARK(sp); | |
686 | EXTEND(sp, 2); | |
687 | PUSHs(mg->mg_obj); | |
463ee0b2 LW |
688 | if (SvOK(key)) |
689 | PUSHs(key); | |
690 | PUTBACK; | |
691 | ||
a0d0e21e LW |
692 | if (perl_call_method(meth, G_SCALAR)) |
693 | sv_setsv(key, *stack_sp--); | |
463ee0b2 | 694 | |
a0d0e21e LW |
695 | FREETMPS; |
696 | LEAVE; | |
79072805 LW |
697 | return 0; |
698 | } | |
699 | ||
700 | int | |
a0d0e21e LW |
701 | magic_existspack(sv,mg) |
702 | SV* sv; | |
703 | MAGIC* mg; | |
704 | { | |
705 | return magic_methpack(sv,mg,"EXISTS"); | |
706 | } | |
707 | ||
708 | int | |
79072805 LW |
709 | magic_setdbline(sv,mg) |
710 | SV* sv; | |
711 | MAGIC* mg; | |
712 | { | |
713 | OP *o; | |
714 | I32 i; | |
715 | GV* gv; | |
716 | SV** svp; | |
717 | ||
718 | gv = DBline; | |
719 | i = SvTRUE(sv); | |
720 | svp = av_fetch(GvAV(gv),atoi(mg->mg_ptr), FALSE); | |
8990e307 | 721 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 722 | o->op_private = i; |
79072805 LW |
723 | else |
724 | warn("Can't break at that line\n"); | |
725 | return 0; | |
726 | } | |
727 | ||
728 | int | |
729 | magic_getarylen(sv,mg) | |
730 | SV* sv; | |
731 | MAGIC* mg; | |
732 | { | |
a0d0e21e | 733 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 LW |
734 | return 0; |
735 | } | |
736 | ||
737 | int | |
738 | magic_setarylen(sv,mg) | |
739 | SV* sv; | |
740 | MAGIC* mg; | |
741 | { | |
a0d0e21e LW |
742 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
743 | return 0; | |
744 | } | |
745 | ||
746 | int | |
747 | magic_getpos(sv,mg) | |
748 | SV* sv; | |
749 | MAGIC* mg; | |
750 | { | |
751 | SV* lsv = LvTARG(sv); | |
752 | ||
753 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
754 | mg = mg_find(lsv, 'g'); | |
755 | if (mg && mg->mg_len >= 0) { | |
756 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); | |
757 | return 0; | |
758 | } | |
759 | } | |
760 | (void)SvOK_off(sv); | |
761 | return 0; | |
762 | } | |
763 | ||
764 | int | |
765 | magic_setpos(sv,mg) | |
766 | SV* sv; | |
767 | MAGIC* mg; | |
768 | { | |
769 | SV* lsv = LvTARG(sv); | |
770 | SSize_t pos; | |
771 | STRLEN len; | |
772 | ||
773 | mg = 0; | |
774 | ||
775 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
776 | mg = mg_find(lsv, 'g'); | |
777 | if (!mg) { | |
778 | if (!SvOK(sv)) | |
779 | return 0; | |
780 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
781 | mg = mg_find(lsv, 'g'); | |
782 | } | |
783 | else if (!SvOK(sv)) { | |
784 | mg->mg_len = -1; | |
785 | return 0; | |
786 | } | |
787 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
788 | ||
789 | pos = SvIV(sv) - curcop->cop_arybase; | |
790 | if (pos < 0) { | |
791 | pos += len; | |
792 | if (pos < 0) | |
793 | pos = 0; | |
794 | } | |
795 | else if (pos > len) | |
796 | pos = len; | |
797 | mg->mg_len = pos; | |
798 | ||
79072805 LW |
799 | return 0; |
800 | } | |
801 | ||
802 | int | |
803 | magic_getglob(sv,mg) | |
804 | SV* sv; | |
805 | MAGIC* mg; | |
806 | { | |
807 | gv_efullname(sv,((GV*)sv));/* a gv value, be nice */ | |
808 | return 0; | |
809 | } | |
810 | ||
811 | int | |
812 | magic_setglob(sv,mg) | |
813 | SV* sv; | |
814 | MAGIC* mg; | |
815 | { | |
816 | register char *s; | |
817 | GV* gv; | |
818 | ||
819 | if (!SvOK(sv)) | |
820 | return 0; | |
463ee0b2 | 821 | s = SvPV(sv, na); |
79072805 LW |
822 | if (*s == '*' && s[1]) |
823 | s++; | |
85e6fe83 | 824 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
825 | if (sv == (SV*)gv) |
826 | return 0; | |
827 | if (GvGP(sv)) | |
828 | gp_free(sv); | |
829 | GvGP(sv) = gp_ref(GvGP(gv)); | |
830 | if (!GvAV(gv)) | |
831 | gv_AVadd(gv); | |
832 | if (!GvHV(gv)) | |
833 | gv_HVadd(gv); | |
a0d0e21e LW |
834 | if (!GvIOp(gv)) |
835 | GvIOp(gv) = newIO(); | |
79072805 LW |
836 | return 0; |
837 | } | |
838 | ||
839 | int | |
840 | magic_setsubstr(sv,mg) | |
841 | SV* sv; | |
842 | MAGIC* mg; | |
843 | { | |
8990e307 LW |
844 | STRLEN len; |
845 | char *tmps = SvPV(sv,len); | |
846 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
847 | return 0; |
848 | } | |
849 | ||
850 | int | |
463ee0b2 LW |
851 | magic_gettaint(sv,mg) |
852 | SV* sv; | |
853 | MAGIC* mg; | |
854 | { | |
855 | tainted = TRUE; | |
856 | return 0; | |
857 | } | |
858 | ||
859 | int | |
860 | magic_settaint(sv,mg) | |
861 | SV* sv; | |
862 | MAGIC* mg; | |
863 | { | |
a0d0e21e LW |
864 | if (!tainted) { |
865 | if (!SvMAGICAL(sv)) | |
866 | SvMAGICAL_on(sv); | |
463ee0b2 | 867 | sv_unmagic(sv, 't'); |
a0d0e21e | 868 | } |
463ee0b2 LW |
869 | return 0; |
870 | } | |
871 | ||
872 | int | |
79072805 LW |
873 | magic_setvec(sv,mg) |
874 | SV* sv; | |
875 | MAGIC* mg; | |
876 | { | |
877 | do_vecset(sv); /* XXX slurp this routine */ | |
878 | return 0; | |
879 | } | |
880 | ||
881 | int | |
93a17b20 LW |
882 | magic_setmglob(sv,mg) |
883 | SV* sv; | |
884 | MAGIC* mg; | |
885 | { | |
a0d0e21e | 886 | mg->mg_len = -1; |
93a17b20 LW |
887 | return 0; |
888 | } | |
889 | ||
890 | int | |
79072805 LW |
891 | magic_setbm(sv,mg) |
892 | SV* sv; | |
893 | MAGIC* mg; | |
894 | { | |
463ee0b2 | 895 | sv_unmagic(sv, 'B'); |
79072805 LW |
896 | SvVALID_off(sv); |
897 | return 0; | |
898 | } | |
899 | ||
900 | int | |
901 | magic_setuvar(sv,mg) | |
902 | SV* sv; | |
903 | MAGIC* mg; | |
904 | { | |
905 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
906 | ||
907 | if (uf && uf->uf_set) | |
908 | (*uf->uf_set)(uf->uf_index, sv); | |
909 | return 0; | |
910 | } | |
911 | ||
912 | int | |
913 | magic_set(sv,mg) | |
914 | SV* sv; | |
915 | MAGIC* mg; | |
916 | { | |
917 | register char *s; | |
918 | I32 i; | |
8990e307 | 919 | STRLEN len; |
79072805 LW |
920 | switch (*mg->mg_ptr) { |
921 | case '\004': /* ^D */ | |
8990e307 | 922 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
923 | DEBUG_x(dump_all()); |
924 | break; | |
925 | case '\006': /* ^F */ | |
463ee0b2 | 926 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 927 | break; |
a0d0e21e LW |
928 | case '\010': /* ^H */ |
929 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
930 | break; | |
79072805 LW |
931 | case '\t': /* ^I */ |
932 | if (inplace) | |
933 | Safefree(inplace); | |
934 | if (SvOK(sv)) | |
a0d0e21e | 935 | inplace = savepv(SvPV(sv,na)); |
79072805 LW |
936 | else |
937 | inplace = Nullch; | |
938 | break; | |
939 | case '\020': /* ^P */ | |
463ee0b2 | 940 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
941 | if (i != perldb) { |
942 | if (perldb) | |
943 | oldlastpm = curpm; | |
944 | else | |
945 | curpm = oldlastpm; | |
946 | } | |
947 | perldb = i; | |
948 | break; | |
949 | case '\024': /* ^T */ | |
85e6fe83 | 950 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
951 | break; |
952 | case '\027': /* ^W */ | |
463ee0b2 | 953 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
954 | break; |
955 | case '.': | |
956 | if (localizing) | |
957 | save_sptr((SV**)&last_in_gv); | |
2304df62 | 958 | else if (SvOK(sv)) |
a0d0e21e | 959 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 LW |
960 | break; |
961 | case '^': | |
a0d0e21e LW |
962 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
963 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
964 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
965 | break; |
966 | case '~': | |
a0d0e21e LW |
967 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
968 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
969 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
970 | break; |
971 | case '=': | |
a0d0e21e | 972 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
973 | break; |
974 | case '-': | |
a0d0e21e LW |
975 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
976 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) | |
977 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; | |
79072805 LW |
978 | break; |
979 | case '%': | |
a0d0e21e | 980 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
981 | break; |
982 | case '|': | |
a0d0e21e | 983 | IoFLAGS(GvIOp(defoutgv)) &= ~IOf_FLUSH; |
463ee0b2 | 984 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) != 0) { |
a0d0e21e | 985 | IoFLAGS(GvIOp(defoutgv)) |= IOf_FLUSH; |
79072805 LW |
986 | } |
987 | break; | |
988 | case '*': | |
463ee0b2 | 989 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
990 | multiline = (i != 0); |
991 | break; | |
992 | case '/': | |
a0d0e21e LW |
993 | if (SvOK(sv)) { |
994 | nrs = rs = SvPV_force(sv,rslen); | |
8990e307 | 995 | nrslen = rslen; |
79072805 | 996 | if (rspara = !rslen) { |
93a17b20 LW |
997 | nrs = rs = "\n\n"; |
998 | nrslen = rslen = 2; | |
79072805 | 999 | } |
93a17b20 | 1000 | nrschar = rschar = rs[rslen - 1]; |
79072805 LW |
1001 | } |
1002 | else { | |
93a17b20 LW |
1003 | nrschar = rschar = 0777; /* fake a non-existent char */ |
1004 | nrslen = rslen = 1; | |
79072805 LW |
1005 | } |
1006 | break; | |
1007 | case '\\': | |
1008 | if (ors) | |
1009 | Safefree(ors); | |
a0d0e21e | 1010 | ors = savepv(SvPV(sv,orslen)); |
79072805 LW |
1011 | break; |
1012 | case ',': | |
1013 | if (ofs) | |
1014 | Safefree(ofs); | |
a0d0e21e | 1015 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 LW |
1016 | break; |
1017 | case '#': | |
1018 | if (ofmt) | |
1019 | Safefree(ofmt); | |
a0d0e21e | 1020 | ofmt = savepv(SvPV(sv,na)); |
79072805 LW |
1021 | break; |
1022 | case '[': | |
a0d0e21e | 1023 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1024 | break; |
1025 | case '?': | |
463ee0b2 | 1026 | statusvalue = U_S(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1027 | break; |
1028 | case '!': | |
463ee0b2 | 1029 | errno = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); /* will anyone ever use this? */ |
79072805 LW |
1030 | break; |
1031 | case '<': | |
463ee0b2 | 1032 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1033 | if (delaymagic) { |
1034 | delaymagic |= DM_RUID; | |
1035 | break; /* don't do magic till later */ | |
1036 | } | |
1037 | #ifdef HAS_SETRUID | |
85e6fe83 | 1038 | (void)setruid((Uid_t)uid); |
79072805 LW |
1039 | #else |
1040 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1041 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
1042 | #ifdef HAS_SETRESUID | |
1043 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); | |
79072805 LW |
1044 | #else |
1045 | if (uid == euid) /* special case $< = $> */ | |
1046 | (void)setuid(uid); | |
a0d0e21e LW |
1047 | else { |
1048 | uid = (I32)getuid(); | |
463ee0b2 | 1049 | croak("setruid() not implemented"); |
a0d0e21e | 1050 | } |
79072805 LW |
1051 | #endif |
1052 | #endif | |
85e6fe83 | 1053 | #endif |
463ee0b2 LW |
1054 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
1055 | tainting |= (euid != uid || egid != gid); | |
79072805 LW |
1056 | break; |
1057 | case '>': | |
463ee0b2 | 1058 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1059 | if (delaymagic) { |
1060 | delaymagic |= DM_EUID; | |
1061 | break; /* don't do magic till later */ | |
1062 | } | |
1063 | #ifdef HAS_SETEUID | |
85e6fe83 | 1064 | (void)seteuid((Uid_t)euid); |
79072805 LW |
1065 | #else |
1066 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1067 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1068 | #else | |
1069 | #ifdef HAS_SETRESUID | |
1070 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); | |
79072805 LW |
1071 | #else |
1072 | if (euid == uid) /* special case $> = $< */ | |
1073 | setuid(euid); | |
a0d0e21e LW |
1074 | else { |
1075 | euid = (I32)geteuid(); | |
463ee0b2 | 1076 | croak("seteuid() not implemented"); |
a0d0e21e | 1077 | } |
79072805 LW |
1078 | #endif |
1079 | #endif | |
85e6fe83 | 1080 | #endif |
79072805 | 1081 | euid = (I32)geteuid(); |
463ee0b2 | 1082 | tainting |= (euid != uid || egid != gid); |
79072805 LW |
1083 | break; |
1084 | case '(': | |
463ee0b2 | 1085 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1086 | if (delaymagic) { |
1087 | delaymagic |= DM_RGID; | |
1088 | break; /* don't do magic till later */ | |
1089 | } | |
1090 | #ifdef HAS_SETRGID | |
85e6fe83 | 1091 | (void)setrgid((Gid_t)gid); |
79072805 LW |
1092 | #else |
1093 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1094 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1095 | #else | |
1096 | #ifdef HAS_SETRESGID | |
1097 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); | |
79072805 LW |
1098 | #else |
1099 | if (gid == egid) /* special case $( = $) */ | |
1100 | (void)setgid(gid); | |
1101 | else | |
463ee0b2 | 1102 | croak("setrgid() not implemented"); |
79072805 LW |
1103 | #endif |
1104 | #endif | |
85e6fe83 | 1105 | #endif |
79072805 | 1106 | gid = (I32)getgid(); |
463ee0b2 | 1107 | tainting |= (euid != uid || egid != gid); |
79072805 LW |
1108 | break; |
1109 | case ')': | |
463ee0b2 | 1110 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1111 | if (delaymagic) { |
1112 | delaymagic |= DM_EGID; | |
1113 | break; /* don't do magic till later */ | |
1114 | } | |
1115 | #ifdef HAS_SETEGID | |
85e6fe83 | 1116 | (void)setegid((Gid_t)egid); |
79072805 LW |
1117 | #else |
1118 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1119 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1120 | #else | |
1121 | #ifdef HAS_SETRESGID | |
1122 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); | |
79072805 LW |
1123 | #else |
1124 | if (egid == gid) /* special case $) = $( */ | |
1125 | (void)setgid(egid); | |
1126 | else | |
463ee0b2 | 1127 | croak("setegid() not implemented"); |
79072805 LW |
1128 | #endif |
1129 | #endif | |
85e6fe83 | 1130 | #endif |
79072805 | 1131 | egid = (I32)getegid(); |
463ee0b2 | 1132 | tainting |= (euid != uid || egid != gid); |
79072805 LW |
1133 | break; |
1134 | case ':': | |
a0d0e21e | 1135 | chopset = SvPV_force(sv,na); |
79072805 LW |
1136 | break; |
1137 | case '0': | |
1138 | if (!origalen) { | |
1139 | s = origargv[0]; | |
1140 | s += strlen(s); | |
1141 | /* See if all the arguments are contiguous in memory */ | |
1142 | for (i = 1; i < origargc; i++) { | |
1143 | if (origargv[i] == s + 1) | |
1144 | s += strlen(++s); /* this one is ok too */ | |
1145 | } | |
1146 | if (origenviron[0] == s + 1) { /* can grab env area too? */ | |
1147 | my_setenv("NoNeSuCh", Nullch); | |
1148 | /* force copy of environment */ | |
1149 | for (i = 0; origenviron[i]; i++) | |
1150 | if (origenviron[i] == s + 1) | |
1151 | s += strlen(++s); | |
1152 | } | |
1153 | origalen = s - origargv[0]; | |
1154 | } | |
a0d0e21e | 1155 | s = SvPV_force(sv,len); |
8990e307 | 1156 | i = len; |
79072805 LW |
1157 | if (i >= origalen) { |
1158 | i = origalen; | |
1159 | SvCUR_set(sv, i); | |
1160 | *SvEND(sv) = '\0'; | |
1161 | Copy(s, origargv[0], i, char); | |
1162 | } | |
1163 | else { | |
1164 | Copy(s, origargv[0], i, char); | |
1165 | s = origargv[0]+i; | |
1166 | *s++ = '\0'; | |
1167 | while (++i < origalen) | |
8990e307 LW |
1168 | *s++ = ' '; |
1169 | s = origargv[0]+i; | |
ed6116ce | 1170 | for (i = 1; i < origargc; i++) |
8990e307 | 1171 | origargv[i] = Nullch; |
79072805 LW |
1172 | } |
1173 | break; | |
1174 | } | |
1175 | return 0; | |
1176 | } | |
1177 | ||
1178 | I32 | |
1179 | whichsig(sig) | |
1180 | char *sig; | |
1181 | { | |
1182 | register char **sigv; | |
1183 | ||
1184 | for (sigv = sig_name+1; *sigv; sigv++) | |
1185 | if (strEQ(sig,*sigv)) | |
1186 | return sigv - sig_name; | |
1187 | #ifdef SIGCLD | |
1188 | if (strEQ(sig,"CHLD")) | |
1189 | return SIGCLD; | |
1190 | #endif | |
1191 | #ifdef SIGCHLD | |
1192 | if (strEQ(sig,"CLD")) | |
1193 | return SIGCHLD; | |
1194 | #endif | |
1195 | return 0; | |
1196 | } | |
1197 | ||
ecfc5424 | 1198 | Signal_t |
79072805 | 1199 | sighandler(sig) |
a0d0e21e | 1200 | int sig; |
79072805 LW |
1201 | { |
1202 | dSP; | |
1203 | GV *gv; | |
a0d0e21e | 1204 | HV *st; |
79072805 LW |
1205 | SV *sv; |
1206 | CV *cv; | |
79072805 | 1207 | AV *oldstack; |
79072805 LW |
1208 | |
1209 | #ifdef OS2 /* or anybody else who requires SIG_ACK */ | |
1210 | signal(sig, SIG_ACK); | |
1211 | #endif | |
1212 | ||
a0d0e21e LW |
1213 | cv = sv_2cv(*hv_fetch(GvHVn(siggv),sig_name[sig],strlen(sig_name[sig]), |
1214 | TRUE), | |
1215 | &st, &gv, TRUE); | |
1216 | if (!cv || !CvROOT(cv) && | |
1217 | *sig_name[sig] == 'C' && instr(sig_name[sig],"LD")) { | |
1218 | ||
79072805 | 1219 | if (sig_name[sig][1] == 'H') |
a0d0e21e LW |
1220 | cv = sv_2cv(*hv_fetch(GvHVn(siggv),"CLD",3,TRUE), |
1221 | &st, &gv, TRUE); | |
79072805 | 1222 | else |
a0d0e21e LW |
1223 | cv = sv_2cv(*hv_fetch(GvHVn(siggv),"CHLD",4,TRUE), |
1224 | &st, &gv, TRUE); | |
1225 | /* gag */ | |
79072805 | 1226 | } |
a0d0e21e | 1227 | if (!cv || !CvROOT(cv)) { |
79072805 LW |
1228 | if (dowarn) |
1229 | warn("SIG%s handler \"%s\" not defined.\n", | |
1230 | sig_name[sig], GvENAME(gv) ); | |
1231 | return; | |
1232 | } | |
1233 | ||
1234 | oldstack = stack; | |
a0d0e21e LW |
1235 | if (stack != signalstack) |
1236 | AvFILL(signalstack) = 0; | |
79072805 LW |
1237 | SWITCHSTACK(stack, signalstack); |
1238 | ||
8990e307 | 1239 | sv = sv_newmortal(); |
79072805 | 1240 | sv_setpv(sv,sig_name[sig]); |
a0d0e21e | 1241 | PUSHMARK(sp); |
79072805 | 1242 | PUSHs(sv); |
79072805 | 1243 | PUTBACK; |
a0d0e21e LW |
1244 | |
1245 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 LW |
1246 | |
1247 | SWITCHSTACK(signalstack, oldstack); | |
79072805 LW |
1248 | |
1249 | return; | |
1250 | } |