Commit | Line | Data |
a0d0e21e |
1 | /* mg.c |
79072805 |
2 | * |
a0d0e21e |
3 | * Copyright (c) 1991-1994, Larry Wall |
79072805 |
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 |
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 |
13 | */ |
14 | |
15 | #include "EXTERN.h" |
16 | #include "perl.h" |
17 | |
a0d0e21e |
18 | /* Omit -- it causes too much grief on mixed systems. |
19 | #ifdef I_UNISTD |
20 | # include <unistd.h> |
21 | #endif |
22 | */ |
23 | |
8e07c86e |
24 | |
8990e307 |
25 | void |
26 | mg_magical(sv) |
27 | SV* sv; |
28 | { |
29 | MAGIC* mg; |
30 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
31 | MGVTBL* vtbl = mg->mg_virtual; |
32 | if (vtbl) { |
a0d0e21e |
33 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 |
34 | SvGMAGICAL_on(sv); |
35 | if (vtbl->svt_set) |
36 | SvSMAGICAL_on(sv); |
37 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
38 | SvRMAGICAL_on(sv); |
39 | } |
40 | } |
41 | } |
42 | |
79072805 |
43 | int |
44 | mg_get(sv) |
45 | SV* sv; |
46 | { |
47 | MAGIC* mg; |
a0d0e21e |
48 | U32 savemagic = SvMAGICAL(sv) | SvREADONLY(sv); |
463ee0b2 |
49 | |
a0d0e21e |
50 | assert(SvGMAGICAL(sv)); |
463ee0b2 |
51 | SvMAGICAL_off(sv); |
a0d0e21e |
52 | SvREADONLY_off(sv); |
8990e307 |
53 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 |
54 | |
79072805 |
55 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
56 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
57 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
79072805 |
58 | (*vtbl->svt_get)(sv, mg); |
a0d0e21e |
59 | if (mg->mg_flags & MGf_GSKIP) |
60 | savemagic = 0; |
61 | } |
79072805 |
62 | } |
463ee0b2 |
63 | |
a0d0e21e |
64 | if (savemagic) |
65 | SvFLAGS(sv) |= savemagic; |
66 | else |
67 | mg_magical(sv); |
68 | if (SvGMAGICAL(sv)) |
69 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
463ee0b2 |
70 | |
79072805 |
71 | return 0; |
72 | } |
73 | |
74 | int |
75 | mg_set(sv) |
76 | SV* sv; |
77 | { |
78 | MAGIC* mg; |
463ee0b2 |
79 | MAGIC* nextmg; |
8990e307 |
80 | U32 savemagic = SvMAGICAL(sv); |
463ee0b2 |
81 | |
82 | SvMAGICAL_off(sv); |
83 | |
84 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { |
79072805 |
85 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 |
86 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e |
87 | if (mg->mg_flags & MGf_GSKIP) { |
88 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ |
89 | savemagic = 0; |
90 | } |
79072805 |
91 | if (vtbl && vtbl->svt_set) |
92 | (*vtbl->svt_set)(sv, mg); |
93 | } |
463ee0b2 |
94 | |
95 | if (SvMAGIC(sv)) { |
a0d0e21e |
96 | if (savemagic) |
97 | SvFLAGS(sv) |= savemagic; |
98 | else |
99 | mg_magical(sv); |
8990e307 |
100 | if (SvGMAGICAL(sv)) |
101 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
463ee0b2 |
102 | } |
103 | |
79072805 |
104 | return 0; |
105 | } |
106 | |
107 | U32 |
108 | mg_len(sv) |
109 | SV* sv; |
110 | { |
111 | MAGIC* mg; |
748a9306 |
112 | char *junk; |
463ee0b2 |
113 | STRLEN len; |
463ee0b2 |
114 | |
79072805 |
115 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
116 | MGVTBL* vtbl = mg->mg_virtual; |
85e6fe83 |
117 | if (vtbl && vtbl->svt_len) { |
118 | U32 savemagic = SvMAGICAL(sv); |
463ee0b2 |
119 | |
85e6fe83 |
120 | SvMAGICAL_off(sv); |
121 | SvFLAGS(sv) |= (SvFLAGS(sv)&(SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
122 | |
a0d0e21e |
123 | /* omit MGf_GSKIP -- not changed here */ |
85e6fe83 |
124 | len = (*vtbl->svt_len)(sv, mg); |
463ee0b2 |
125 | |
85e6fe83 |
126 | SvFLAGS(sv) |= savemagic; |
127 | if (SvGMAGICAL(sv)) |
128 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
129 | |
130 | return len; |
131 | } |
132 | } |
133 | |
748a9306 |
134 | junk = SvPV(sv, len); |
463ee0b2 |
135 | return len; |
79072805 |
136 | } |
137 | |
138 | int |
139 | mg_clear(sv) |
140 | SV* sv; |
141 | { |
142 | MAGIC* mg; |
8990e307 |
143 | U32 savemagic = SvMAGICAL(sv); |
463ee0b2 |
144 | |
145 | SvMAGICAL_off(sv); |
8990e307 |
146 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 |
147 | |
79072805 |
148 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
149 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
150 | /* omit GSKIP -- never set here */ |
151 | |
79072805 |
152 | if (vtbl && vtbl->svt_clear) |
153 | (*vtbl->svt_clear)(sv, mg); |
154 | } |
463ee0b2 |
155 | |
8990e307 |
156 | SvFLAGS(sv) |= savemagic; |
157 | if (SvGMAGICAL(sv)) |
158 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
463ee0b2 |
159 | |
79072805 |
160 | return 0; |
161 | } |
162 | |
93a17b20 |
163 | MAGIC* |
164 | mg_find(sv, type) |
165 | SV* sv; |
a0d0e21e |
166 | int type; |
93a17b20 |
167 | { |
168 | MAGIC* mg; |
93a17b20 |
169 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
170 | if (mg->mg_type == type) |
171 | return mg; |
172 | } |
173 | return 0; |
174 | } |
175 | |
79072805 |
176 | int |
463ee0b2 |
177 | mg_copy(sv, nsv, key, klen) |
79072805 |
178 | SV* sv; |
463ee0b2 |
179 | SV* nsv; |
180 | char *key; |
181 | STRLEN klen; |
79072805 |
182 | { |
463ee0b2 |
183 | int count = 0; |
79072805 |
184 | MAGIC* mg; |
463ee0b2 |
185 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
186 | if (isUPPER(mg->mg_type)) { |
a0d0e21e |
187 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 |
188 | count++; |
79072805 |
189 | } |
79072805 |
190 | } |
463ee0b2 |
191 | return count; |
79072805 |
192 | } |
193 | |
194 | int |
463ee0b2 |
195 | mg_free(sv) |
79072805 |
196 | SV* sv; |
197 | { |
198 | MAGIC* mg; |
199 | MAGIC* moremagic; |
200 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { |
201 | MGVTBL* vtbl = mg->mg_virtual; |
202 | moremagic = mg->mg_moremagic; |
203 | if (vtbl && vtbl->svt_free) |
204 | (*vtbl->svt_free)(sv, mg); |
93a17b20 |
205 | if (mg->mg_ptr && mg->mg_type != 'g') |
79072805 |
206 | Safefree(mg->mg_ptr); |
85e6fe83 |
207 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 |
208 | SvREFCNT_dec(mg->mg_obj); |
79072805 |
209 | Safefree(mg); |
210 | } |
211 | SvMAGIC(sv) = 0; |
212 | return 0; |
213 | } |
214 | |
215 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
216 | #include <signal.h> |
217 | #endif |
218 | |
93a17b20 |
219 | U32 |
220 | magic_len(sv, mg) |
221 | SV *sv; |
222 | MAGIC *mg; |
223 | { |
224 | register I32 paren; |
225 | register char *s; |
226 | register I32 i; |
748a9306 |
227 | char *t; |
93a17b20 |
228 | |
229 | switch (*mg->mg_ptr) { |
230 | case '1': case '2': case '3': case '4': |
231 | case '5': case '6': case '7': case '8': case '9': case '&': |
232 | if (curpm) { |
233 | paren = atoi(mg->mg_ptr); |
234 | getparen: |
235 | if (curpm->op_pmregexp && |
236 | paren <= curpm->op_pmregexp->nparens && |
748a9306 |
237 | (s = curpm->op_pmregexp->startp[paren]) && |
238 | (t = curpm->op_pmregexp->endp[paren]) ) { |
239 | i = t - s; |
93a17b20 |
240 | if (i >= 0) |
241 | return i; |
93a17b20 |
242 | } |
93a17b20 |
243 | } |
748a9306 |
244 | return 0; |
93a17b20 |
245 | break; |
246 | case '+': |
247 | if (curpm) { |
248 | paren = curpm->op_pmregexp->lastparen; |
a0d0e21e |
249 | if (!paren) |
250 | return 0; |
93a17b20 |
251 | goto getparen; |
252 | } |
748a9306 |
253 | return 0; |
93a17b20 |
254 | break; |
255 | case '`': |
256 | if (curpm) { |
257 | if (curpm->op_pmregexp && |
258 | (s = curpm->op_pmregexp->subbeg) ) { |
259 | i = curpm->op_pmregexp->startp[0] - s; |
260 | if (i >= 0) |
261 | return i; |
93a17b20 |
262 | } |
93a17b20 |
263 | } |
748a9306 |
264 | return 0; |
93a17b20 |
265 | case '\'': |
266 | if (curpm) { |
267 | if (curpm->op_pmregexp && |
268 | (s = curpm->op_pmregexp->endp[0]) ) { |
269 | return (STRLEN) (curpm->op_pmregexp->subend - s); |
270 | } |
93a17b20 |
271 | } |
748a9306 |
272 | return 0; |
93a17b20 |
273 | case ',': |
274 | return (STRLEN)ofslen; |
275 | case '\\': |
276 | return (STRLEN)orslen; |
277 | } |
278 | magic_get(sv,mg); |
279 | if (!SvPOK(sv) && SvNIOK(sv)) |
463ee0b2 |
280 | sv_2pv(sv, &na); |
93a17b20 |
281 | if (SvPOK(sv)) |
282 | return SvCUR(sv); |
283 | return 0; |
284 | } |
285 | |
79072805 |
286 | int |
287 | magic_get(sv, mg) |
288 | SV *sv; |
289 | MAGIC *mg; |
290 | { |
291 | register I32 paren; |
292 | register char *s; |
293 | register I32 i; |
748a9306 |
294 | char *t; |
79072805 |
295 | |
296 | switch (*mg->mg_ptr) { |
748a9306 |
297 | case '\001': /* ^A */ |
298 | sv_setsv(sv, bodytarget); |
299 | break; |
79072805 |
300 | case '\004': /* ^D */ |
301 | sv_setiv(sv,(I32)(debug & 32767)); |
302 | break; |
303 | case '\006': /* ^F */ |
304 | sv_setiv(sv,(I32)maxsysfd); |
305 | break; |
a0d0e21e |
306 | case '\010': /* ^H */ |
307 | sv_setiv(sv,(I32)hints); |
308 | break; |
79072805 |
309 | case '\t': /* ^I */ |
310 | if (inplace) |
311 | sv_setpv(sv, inplace); |
312 | else |
313 | sv_setsv(sv,&sv_undef); |
314 | break; |
315 | case '\020': /* ^P */ |
316 | sv_setiv(sv,(I32)perldb); |
317 | break; |
318 | case '\024': /* ^T */ |
319 | sv_setiv(sv,(I32)basetime); |
320 | break; |
321 | case '\027': /* ^W */ |
322 | sv_setiv(sv,(I32)dowarn); |
323 | break; |
324 | case '1': case '2': case '3': case '4': |
325 | case '5': case '6': case '7': case '8': case '9': case '&': |
326 | if (curpm) { |
327 | paren = atoi(GvENAME(mg->mg_obj)); |
328 | getparen: |
329 | if (curpm->op_pmregexp && |
330 | paren <= curpm->op_pmregexp->nparens && |
a0d0e21e |
331 | (s = curpm->op_pmregexp->startp[paren]) && |
748a9306 |
332 | (t = curpm->op_pmregexp->endp[paren]) ) { |
333 | i = t - s; |
334 | if (i >= 0) { |
335 | MAGIC *tmg; |
79072805 |
336 | sv_setpvn(sv,s,i); |
748a9306 |
337 | if (tainting && (tmg = mg_find(sv,'t'))) |
338 | tmg->mg_len = 0; /* guarantee $1 untainted */ |
339 | break; |
340 | } |
79072805 |
341 | } |
79072805 |
342 | } |
748a9306 |
343 | sv_setsv(sv,&sv_undef); |
79072805 |
344 | break; |
345 | case '+': |
346 | if (curpm) { |
347 | paren = curpm->op_pmregexp->lastparen; |
a0d0e21e |
348 | if (paren) |
349 | goto getparen; |
79072805 |
350 | } |
748a9306 |
351 | sv_setsv(sv,&sv_undef); |
79072805 |
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; |
748a9306 |
358 | if (i >= 0) { |
79072805 |
359 | sv_setpvn(sv,s,i); |
748a9306 |
360 | break; |
361 | } |
79072805 |
362 | } |
79072805 |
363 | } |
748a9306 |
364 | sv_setsv(sv,&sv_undef); |
79072805 |
365 | break; |
366 | case '\'': |
367 | if (curpm) { |
368 | if (curpm->op_pmregexp && |
369 | (s = curpm->op_pmregexp->endp[0]) ) { |
370 | sv_setpvn(sv,s, curpm->op_pmregexp->subend - s); |
748a9306 |
371 | break; |
79072805 |
372 | } |
79072805 |
373 | } |
748a9306 |
374 | sv_setsv(sv,&sv_undef); |
79072805 |
375 | break; |
376 | case '.': |
377 | #ifndef lint |
a0d0e21e |
378 | if (GvIO(last_in_gv)) { |
8990e307 |
379 | sv_setiv(sv,(I32)IoLINES(GvIO(last_in_gv))); |
79072805 |
380 | } |
381 | #endif |
382 | break; |
383 | case '?': |
384 | sv_setiv(sv,(I32)statusvalue); |
385 | break; |
386 | case '^': |
a0d0e21e |
387 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 |
388 | if (s) |
389 | sv_setpv(sv,s); |
390 | else { |
391 | sv_setpv(sv,GvENAME(defoutgv)); |
392 | sv_catpv(sv,"_TOP"); |
393 | } |
394 | break; |
395 | case '~': |
a0d0e21e |
396 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 |
397 | if (!s) |
398 | s = GvENAME(defoutgv); |
399 | sv_setpv(sv,s); |
400 | break; |
401 | #ifndef lint |
402 | case '=': |
a0d0e21e |
403 | sv_setiv(sv,(I32)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 |
404 | break; |
405 | case '-': |
a0d0e21e |
406 | sv_setiv(sv,(I32)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 |
407 | break; |
408 | case '%': |
a0d0e21e |
409 | sv_setiv(sv,(I32)IoPAGE(GvIOp(defoutgv))); |
79072805 |
410 | break; |
411 | #endif |
412 | case ':': |
413 | break; |
414 | case '/': |
415 | break; |
416 | case '[': |
a0d0e21e |
417 | sv_setiv(sv,(I32)curcop->cop_arybase); |
79072805 |
418 | break; |
419 | case '|': |
a0d0e21e |
420 | sv_setiv(sv, (IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 |
421 | break; |
422 | case ',': |
423 | sv_setpvn(sv,ofs,ofslen); |
424 | break; |
425 | case '\\': |
426 | sv_setpvn(sv,ors,orslen); |
427 | break; |
428 | case '#': |
429 | sv_setpv(sv,ofmt); |
430 | break; |
431 | case '!': |
432 | sv_setnv(sv,(double)errno); |
2304df62 |
433 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
79072805 |
434 | SvNOK_on(sv); /* what a wonderful hack! */ |
435 | break; |
436 | case '<': |
437 | sv_setiv(sv,(I32)uid); |
438 | break; |
439 | case '>': |
440 | sv_setiv(sv,(I32)euid); |
441 | break; |
442 | case '(': |
443 | s = buf; |
444 | (void)sprintf(s,"%d",(int)gid); |
445 | goto add_groups; |
446 | case ')': |
447 | s = buf; |
448 | (void)sprintf(s,"%d",(int)egid); |
449 | add_groups: |
450 | while (*s) s++; |
451 | #ifdef HAS_GETGROUPS |
452 | #ifndef NGROUPS |
453 | #define NGROUPS 32 |
454 | #endif |
455 | { |
a0d0e21e |
456 | Groups_t gary[NGROUPS]; |
79072805 |
457 | |
458 | i = getgroups(NGROUPS,gary); |
459 | while (--i >= 0) { |
460 | (void)sprintf(s," %ld", (long)gary[i]); |
461 | while (*s) s++; |
462 | } |
463 | } |
464 | #endif |
465 | sv_setpv(sv,buf); |
466 | break; |
467 | case '*': |
468 | break; |
469 | case '0': |
470 | break; |
471 | } |
a0d0e21e |
472 | return 0; |
79072805 |
473 | } |
474 | |
475 | int |
476 | magic_getuvar(sv, mg) |
477 | SV *sv; |
478 | MAGIC *mg; |
479 | { |
480 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
481 | |
482 | if (uf && uf->uf_val) |
483 | (*uf->uf_val)(uf->uf_index, sv); |
484 | return 0; |
485 | } |
486 | |
487 | int |
488 | magic_setenv(sv,mg) |
489 | SV* sv; |
490 | MAGIC* mg; |
491 | { |
492 | register char *s; |
a0d0e21e |
493 | STRLEN len; |
494 | I32 i; |
495 | s = SvPV(sv,len); |
79072805 |
496 | my_setenv(mg->mg_ptr,s); |
a0d0e21e |
497 | #ifdef DYNAMIC_ENV_FETCH |
498 | /* We just undefd an environment var. Is a replacement */ |
499 | /* waiting in the wings? */ |
500 | if (!len) { |
501 | SV **envsvp; |
502 | if (envsvp = hv_fetch(GvHVn(envgv),mg->mg_ptr,mg->mg_len,FALSE)) |
503 | s = SvPV(*envsvp,len); |
504 | } |
505 | #endif |
79072805 |
506 | /* And you'll never guess what the dog had */ |
507 | /* in its mouth... */ |
463ee0b2 |
508 | if (tainting) { |
509 | if (s && strEQ(mg->mg_ptr,"PATH")) { |
a0d0e21e |
510 | char *strend = s + len; |
463ee0b2 |
511 | |
512 | while (s < strend) { |
513 | s = cpytill(tokenbuf,s,strend,':',&i); |
514 | s++; |
515 | if (*tokenbuf != '/' |
a0d0e21e |
516 | || (Stat(tokenbuf,&statbuf) && (statbuf.st_mode & 2)) ) |
8990e307 |
517 | MgTAINTEDDIR_on(mg); |
463ee0b2 |
518 | } |
79072805 |
519 | } |
520 | } |
79072805 |
521 | return 0; |
522 | } |
523 | |
524 | int |
85e6fe83 |
525 | magic_clearenv(sv,mg) |
526 | SV* sv; |
527 | MAGIC* mg; |
528 | { |
529 | my_setenv(mg->mg_ptr,Nullch); |
530 | return 0; |
531 | } |
532 | |
533 | int |
79072805 |
534 | magic_setsig(sv,mg) |
535 | SV* sv; |
536 | MAGIC* mg; |
537 | { |
538 | register char *s; |
539 | I32 i; |
748a9306 |
540 | SV** svp; |
a0d0e21e |
541 | |
748a9306 |
542 | s = mg->mg_ptr; |
543 | if (*s == '_') { |
544 | if (strEQ(s,"__DIE__")) |
545 | svp = &diehook; |
546 | else if (strEQ(s,"__WARN__")) |
547 | svp = &warnhook; |
548 | else if (strEQ(s,"__PARSE__")) |
549 | svp = &parsehook; |
550 | else |
551 | croak("No such hook: %s", s); |
552 | i = 0; |
553 | } |
554 | else { |
555 | i = whichsig(s); /* ...no, a brick */ |
556 | if (!i) { |
557 | if (dowarn || strEQ(s,"ALARM")) |
558 | warn("No such signal: SIG%s", s); |
559 | return 0; |
560 | } |
561 | } |
a0d0e21e |
562 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 |
563 | if (i) |
564 | (void)signal(i,sighandler); |
565 | else |
566 | *svp = SvREFCNT_inc(sv); |
a0d0e21e |
567 | return 0; |
568 | } |
569 | s = SvPV_force(sv,na); |
748a9306 |
570 | if (strEQ(s,"IGNORE")) { |
571 | if (i) |
572 | (void)signal(i,SIG_IGN); |
573 | else |
574 | *svp = 0; |
575 | } |
576 | else if (strEQ(s,"DEFAULT") || !*s) { |
577 | if (i) |
578 | (void)signal(i,SIG_DFL); |
579 | else |
580 | *svp = 0; |
581 | } |
79072805 |
582 | else { |
2304df62 |
583 | if (!strchr(s,':') && !strchr(s,'\'')) { |
584 | sprintf(tokenbuf, "main::%s",s); |
79072805 |
585 | sv_setpv(sv,tokenbuf); |
586 | } |
748a9306 |
587 | if (i) |
588 | (void)signal(i,sighandler); |
589 | else |
590 | *svp = SvREFCNT_inc(sv); |
79072805 |
591 | } |
592 | return 0; |
593 | } |
594 | |
595 | int |
463ee0b2 |
596 | magic_setisa(sv,mg) |
79072805 |
597 | SV* sv; |
598 | MAGIC* mg; |
599 | { |
463ee0b2 |
600 | sub_generation++; |
601 | return 0; |
602 | } |
603 | |
a0d0e21e |
604 | #ifdef OVERLOAD |
605 | |
463ee0b2 |
606 | int |
a0d0e21e |
607 | magic_setamagic(sv,mg) |
463ee0b2 |
608 | SV* sv; |
609 | MAGIC* mg; |
610 | { |
a0d0e21e |
611 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
612 | amagic_generation++; |
463ee0b2 |
613 | |
a0d0e21e |
614 | return 0; |
615 | } |
616 | #endif /* OVERLOAD */ |
463ee0b2 |
617 | |
a0d0e21e |
618 | static int |
619 | magic_methpack(sv,mg,meth) |
620 | SV* sv; |
621 | MAGIC* mg; |
622 | char *meth; |
623 | { |
624 | dSP; |
463ee0b2 |
625 | |
a0d0e21e |
626 | ENTER; |
627 | SAVETMPS; |
628 | PUSHMARK(sp); |
629 | EXTEND(sp, 2); |
630 | PUSHs(mg->mg_obj); |
463ee0b2 |
631 | if (mg->mg_ptr) |
a0d0e21e |
632 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
633 | else if (mg->mg_type == 'p') |
634 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
463ee0b2 |
635 | PUTBACK; |
636 | |
a0d0e21e |
637 | if (perl_call_method(meth, G_SCALAR)) |
638 | sv_setsv(sv, *stack_sp--); |
463ee0b2 |
639 | |
a0d0e21e |
640 | FREETMPS; |
641 | LEAVE; |
642 | return 0; |
643 | } |
463ee0b2 |
644 | |
a0d0e21e |
645 | int |
646 | magic_getpack(sv,mg) |
647 | SV* sv; |
648 | MAGIC* mg; |
649 | { |
650 | magic_methpack(sv,mg,"FETCH"); |
651 | if (mg->mg_ptr) |
652 | mg->mg_flags |= MGf_GSKIP; |
463ee0b2 |
653 | return 0; |
654 | } |
655 | |
656 | int |
657 | magic_setpack(sv,mg) |
658 | SV* sv; |
659 | MAGIC* mg; |
660 | { |
463ee0b2 |
661 | dSP; |
463ee0b2 |
662 | |
a0d0e21e |
663 | PUSHMARK(sp); |
664 | EXTEND(sp, 3); |
665 | PUSHs(mg->mg_obj); |
463ee0b2 |
666 | if (mg->mg_ptr) |
a0d0e21e |
667 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
668 | else if (mg->mg_type == 'p') |
669 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
463ee0b2 |
670 | PUSHs(sv); |
671 | PUTBACK; |
672 | |
a0d0e21e |
673 | perl_call_method("STORE", G_SCALAR|G_DISCARD); |
463ee0b2 |
674 | |
675 | return 0; |
676 | } |
677 | |
678 | int |
679 | magic_clearpack(sv,mg) |
680 | SV* sv; |
681 | MAGIC* mg; |
682 | { |
a0d0e21e |
683 | return magic_methpack(sv,mg,"DELETE"); |
684 | } |
463ee0b2 |
685 | |
a0d0e21e |
686 | int magic_wipepack(sv,mg) |
687 | SV* sv; |
688 | MAGIC* mg; |
689 | { |
690 | dSP; |
463ee0b2 |
691 | |
a0d0e21e |
692 | PUSHMARK(sp); |
693 | XPUSHs(mg->mg_obj); |
463ee0b2 |
694 | PUTBACK; |
463ee0b2 |
695 | |
a0d0e21e |
696 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
463ee0b2 |
697 | |
698 | return 0; |
699 | } |
700 | |
701 | int |
702 | magic_nextpack(sv,mg,key) |
703 | SV* sv; |
704 | MAGIC* mg; |
705 | SV* key; |
706 | { |
463ee0b2 |
707 | dSP; |
a0d0e21e |
708 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 |
709 | |
710 | ENTER; |
a0d0e21e |
711 | SAVETMPS; |
712 | PUSHMARK(sp); |
713 | EXTEND(sp, 2); |
714 | PUSHs(mg->mg_obj); |
463ee0b2 |
715 | if (SvOK(key)) |
716 | PUSHs(key); |
717 | PUTBACK; |
718 | |
a0d0e21e |
719 | if (perl_call_method(meth, G_SCALAR)) |
720 | sv_setsv(key, *stack_sp--); |
463ee0b2 |
721 | |
a0d0e21e |
722 | FREETMPS; |
723 | LEAVE; |
79072805 |
724 | return 0; |
725 | } |
726 | |
727 | int |
a0d0e21e |
728 | magic_existspack(sv,mg) |
729 | SV* sv; |
730 | MAGIC* mg; |
731 | { |
732 | return magic_methpack(sv,mg,"EXISTS"); |
733 | } |
734 | |
735 | int |
79072805 |
736 | magic_setdbline(sv,mg) |
737 | SV* sv; |
738 | MAGIC* mg; |
739 | { |
740 | OP *o; |
741 | I32 i; |
742 | GV* gv; |
743 | SV** svp; |
744 | |
745 | gv = DBline; |
746 | i = SvTRUE(sv); |
747 | svp = av_fetch(GvAV(gv),atoi(mg->mg_ptr), FALSE); |
8990e307 |
748 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 |
749 | o->op_private = i; |
79072805 |
750 | else |
751 | warn("Can't break at that line\n"); |
752 | return 0; |
753 | } |
754 | |
755 | int |
756 | magic_getarylen(sv,mg) |
757 | SV* sv; |
758 | MAGIC* mg; |
759 | { |
a0d0e21e |
760 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 |
761 | return 0; |
762 | } |
763 | |
764 | int |
765 | magic_setarylen(sv,mg) |
766 | SV* sv; |
767 | MAGIC* mg; |
768 | { |
a0d0e21e |
769 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
770 | return 0; |
771 | } |
772 | |
773 | int |
774 | magic_getpos(sv,mg) |
775 | SV* sv; |
776 | MAGIC* mg; |
777 | { |
778 | SV* lsv = LvTARG(sv); |
779 | |
780 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
781 | mg = mg_find(lsv, 'g'); |
782 | if (mg && mg->mg_len >= 0) { |
783 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); |
784 | return 0; |
785 | } |
786 | } |
787 | (void)SvOK_off(sv); |
788 | return 0; |
789 | } |
790 | |
791 | int |
792 | magic_setpos(sv,mg) |
793 | SV* sv; |
794 | MAGIC* mg; |
795 | { |
796 | SV* lsv = LvTARG(sv); |
797 | SSize_t pos; |
798 | STRLEN len; |
799 | |
800 | mg = 0; |
801 | |
802 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
803 | mg = mg_find(lsv, 'g'); |
804 | if (!mg) { |
805 | if (!SvOK(sv)) |
806 | return 0; |
807 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); |
808 | mg = mg_find(lsv, 'g'); |
809 | } |
810 | else if (!SvOK(sv)) { |
811 | mg->mg_len = -1; |
812 | return 0; |
813 | } |
814 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); |
815 | |
816 | pos = SvIV(sv) - curcop->cop_arybase; |
817 | if (pos < 0) { |
818 | pos += len; |
819 | if (pos < 0) |
820 | pos = 0; |
821 | } |
822 | else if (pos > len) |
823 | pos = len; |
824 | mg->mg_len = pos; |
825 | |
79072805 |
826 | return 0; |
827 | } |
828 | |
829 | int |
830 | magic_getglob(sv,mg) |
831 | SV* sv; |
832 | MAGIC* mg; |
833 | { |
834 | gv_efullname(sv,((GV*)sv));/* a gv value, be nice */ |
835 | return 0; |
836 | } |
837 | |
838 | int |
839 | magic_setglob(sv,mg) |
840 | SV* sv; |
841 | MAGIC* mg; |
842 | { |
843 | register char *s; |
844 | GV* gv; |
845 | |
846 | if (!SvOK(sv)) |
847 | return 0; |
463ee0b2 |
848 | s = SvPV(sv, na); |
79072805 |
849 | if (*s == '*' && s[1]) |
850 | s++; |
85e6fe83 |
851 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 |
852 | if (sv == (SV*)gv) |
853 | return 0; |
854 | if (GvGP(sv)) |
855 | gp_free(sv); |
856 | GvGP(sv) = gp_ref(GvGP(gv)); |
857 | if (!GvAV(gv)) |
858 | gv_AVadd(gv); |
859 | if (!GvHV(gv)) |
860 | gv_HVadd(gv); |
a0d0e21e |
861 | if (!GvIOp(gv)) |
862 | GvIOp(gv) = newIO(); |
79072805 |
863 | return 0; |
864 | } |
865 | |
866 | int |
867 | magic_setsubstr(sv,mg) |
868 | SV* sv; |
869 | MAGIC* mg; |
870 | { |
8990e307 |
871 | STRLEN len; |
872 | char *tmps = SvPV(sv,len); |
873 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); |
79072805 |
874 | return 0; |
875 | } |
876 | |
877 | int |
463ee0b2 |
878 | magic_gettaint(sv,mg) |
879 | SV* sv; |
880 | MAGIC* mg; |
881 | { |
748a9306 |
882 | if (mg->mg_len & 1) |
883 | tainted = TRUE; |
884 | else if (mg->mg_len & 2 && mg->mg_obj == sv) /* kludge */ |
885 | tainted = TRUE; |
463ee0b2 |
886 | return 0; |
887 | } |
888 | |
889 | int |
890 | magic_settaint(sv,mg) |
891 | SV* sv; |
892 | MAGIC* mg; |
893 | { |
748a9306 |
894 | if (localizing) { |
895 | if (localizing == 1) |
896 | mg->mg_len <<= 1; |
897 | else |
898 | mg->mg_len >>= 1; |
a0d0e21e |
899 | } |
748a9306 |
900 | else if (tainted) |
901 | mg->mg_len |= 1; |
902 | else |
903 | mg->mg_len &= ~1; |
463ee0b2 |
904 | return 0; |
905 | } |
906 | |
907 | int |
79072805 |
908 | magic_setvec(sv,mg) |
909 | SV* sv; |
910 | MAGIC* mg; |
911 | { |
912 | do_vecset(sv); /* XXX slurp this routine */ |
913 | return 0; |
914 | } |
915 | |
916 | int |
93a17b20 |
917 | magic_setmglob(sv,mg) |
918 | SV* sv; |
919 | MAGIC* mg; |
920 | { |
a0d0e21e |
921 | mg->mg_len = -1; |
93a17b20 |
922 | return 0; |
923 | } |
924 | |
925 | int |
79072805 |
926 | magic_setbm(sv,mg) |
927 | SV* sv; |
928 | MAGIC* mg; |
929 | { |
463ee0b2 |
930 | sv_unmagic(sv, 'B'); |
79072805 |
931 | SvVALID_off(sv); |
932 | return 0; |
933 | } |
934 | |
935 | int |
936 | magic_setuvar(sv,mg) |
937 | SV* sv; |
938 | MAGIC* mg; |
939 | { |
940 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
941 | |
942 | if (uf && uf->uf_set) |
943 | (*uf->uf_set)(uf->uf_index, sv); |
944 | return 0; |
945 | } |
946 | |
947 | int |
948 | magic_set(sv,mg) |
949 | SV* sv; |
950 | MAGIC* mg; |
951 | { |
952 | register char *s; |
953 | I32 i; |
8990e307 |
954 | STRLEN len; |
79072805 |
955 | switch (*mg->mg_ptr) { |
748a9306 |
956 | case '\001': /* ^A */ |
957 | sv_setsv(bodytarget, sv); |
958 | break; |
79072805 |
959 | case '\004': /* ^D */ |
8990e307 |
960 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 |
961 | DEBUG_x(dump_all()); |
962 | break; |
963 | case '\006': /* ^F */ |
463ee0b2 |
964 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
965 | break; |
a0d0e21e |
966 | case '\010': /* ^H */ |
967 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
968 | break; |
79072805 |
969 | case '\t': /* ^I */ |
970 | if (inplace) |
971 | Safefree(inplace); |
972 | if (SvOK(sv)) |
a0d0e21e |
973 | inplace = savepv(SvPV(sv,na)); |
79072805 |
974 | else |
975 | inplace = Nullch; |
976 | break; |
977 | case '\020': /* ^P */ |
463ee0b2 |
978 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
979 | if (i != perldb) { |
980 | if (perldb) |
981 | oldlastpm = curpm; |
982 | else |
983 | curpm = oldlastpm; |
984 | } |
985 | perldb = i; |
986 | break; |
987 | case '\024': /* ^T */ |
85e6fe83 |
988 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
989 | break; |
990 | case '\027': /* ^W */ |
463ee0b2 |
991 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
992 | break; |
993 | case '.': |
748a9306 |
994 | if (localizing) { |
995 | if (localizing == 1) |
996 | save_sptr((SV**)&last_in_gv); |
997 | } |
2304df62 |
998 | else if (SvOK(sv)) |
a0d0e21e |
999 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 |
1000 | break; |
1001 | case '^': |
a0d0e21e |
1002 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1003 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); |
1004 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1005 | break; |
1006 | case '~': |
a0d0e21e |
1007 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1008 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); |
1009 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1010 | break; |
1011 | case '=': |
a0d0e21e |
1012 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1013 | break; |
1014 | case '-': |
a0d0e21e |
1015 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1016 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) |
1017 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; |
79072805 |
1018 | break; |
1019 | case '%': |
a0d0e21e |
1020 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1021 | break; |
1022 | case '|': |
a0d0e21e |
1023 | IoFLAGS(GvIOp(defoutgv)) &= ~IOf_FLUSH; |
463ee0b2 |
1024 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) != 0) { |
a0d0e21e |
1025 | IoFLAGS(GvIOp(defoutgv)) |= IOf_FLUSH; |
79072805 |
1026 | } |
1027 | break; |
1028 | case '*': |
463ee0b2 |
1029 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1030 | multiline = (i != 0); |
1031 | break; |
1032 | case '/': |
a0d0e21e |
1033 | if (SvOK(sv)) { |
1034 | nrs = rs = SvPV_force(sv,rslen); |
8990e307 |
1035 | nrslen = rslen; |
79072805 |
1036 | if (rspara = !rslen) { |
93a17b20 |
1037 | nrs = rs = "\n\n"; |
1038 | nrslen = rslen = 2; |
79072805 |
1039 | } |
93a17b20 |
1040 | nrschar = rschar = rs[rslen - 1]; |
79072805 |
1041 | } |
1042 | else { |
93a17b20 |
1043 | nrschar = rschar = 0777; /* fake a non-existent char */ |
1044 | nrslen = rslen = 1; |
79072805 |
1045 | } |
1046 | break; |
1047 | case '\\': |
1048 | if (ors) |
1049 | Safefree(ors); |
a0d0e21e |
1050 | ors = savepv(SvPV(sv,orslen)); |
79072805 |
1051 | break; |
1052 | case ',': |
1053 | if (ofs) |
1054 | Safefree(ofs); |
a0d0e21e |
1055 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 |
1056 | break; |
1057 | case '#': |
1058 | if (ofmt) |
1059 | Safefree(ofmt); |
a0d0e21e |
1060 | ofmt = savepv(SvPV(sv,na)); |
79072805 |
1061 | break; |
1062 | case '[': |
a0d0e21e |
1063 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1064 | break; |
1065 | case '?': |
748a9306 |
1066 | statusvalue = FIXSTATUS(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1067 | break; |
1068 | case '!': |
748a9306 |
1069 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv),SS$_ABORT); /* will anyone ever use this? */ |
79072805 |
1070 | break; |
1071 | case '<': |
463ee0b2 |
1072 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1073 | if (delaymagic) { |
1074 | delaymagic |= DM_RUID; |
1075 | break; /* don't do magic till later */ |
1076 | } |
1077 | #ifdef HAS_SETRUID |
85e6fe83 |
1078 | (void)setruid((Uid_t)uid); |
79072805 |
1079 | #else |
1080 | #ifdef HAS_SETREUID |
85e6fe83 |
1081 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 |
1082 | #else |
85e6fe83 |
1083 | #ifdef HAS_SETRESUID |
1084 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); |
79072805 |
1085 | #else |
1086 | if (uid == euid) /* special case $< = $> */ |
1087 | (void)setuid(uid); |
a0d0e21e |
1088 | else { |
1089 | uid = (I32)getuid(); |
463ee0b2 |
1090 | croak("setruid() not implemented"); |
a0d0e21e |
1091 | } |
79072805 |
1092 | #endif |
1093 | #endif |
85e6fe83 |
1094 | #endif |
748a9306 |
1095 | uid = (I32)getuid(); |
463ee0b2 |
1096 | tainting |= (euid != uid || egid != gid); |
79072805 |
1097 | break; |
1098 | case '>': |
463ee0b2 |
1099 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1100 | if (delaymagic) { |
1101 | delaymagic |= DM_EUID; |
1102 | break; /* don't do magic till later */ |
1103 | } |
1104 | #ifdef HAS_SETEUID |
85e6fe83 |
1105 | (void)seteuid((Uid_t)euid); |
79072805 |
1106 | #else |
1107 | #ifdef HAS_SETREUID |
85e6fe83 |
1108 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1109 | #else |
1110 | #ifdef HAS_SETRESUID |
1111 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); |
79072805 |
1112 | #else |
1113 | if (euid == uid) /* special case $> = $< */ |
1114 | setuid(euid); |
a0d0e21e |
1115 | else { |
1116 | euid = (I32)geteuid(); |
463ee0b2 |
1117 | croak("seteuid() not implemented"); |
a0d0e21e |
1118 | } |
79072805 |
1119 | #endif |
1120 | #endif |
85e6fe83 |
1121 | #endif |
79072805 |
1122 | euid = (I32)geteuid(); |
463ee0b2 |
1123 | tainting |= (euid != uid || egid != gid); |
79072805 |
1124 | break; |
1125 | case '(': |
463ee0b2 |
1126 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1127 | if (delaymagic) { |
1128 | delaymagic |= DM_RGID; |
1129 | break; /* don't do magic till later */ |
1130 | } |
1131 | #ifdef HAS_SETRGID |
85e6fe83 |
1132 | (void)setrgid((Gid_t)gid); |
79072805 |
1133 | #else |
1134 | #ifdef HAS_SETREGID |
85e6fe83 |
1135 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1136 | #else |
1137 | #ifdef HAS_SETRESGID |
1138 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); |
79072805 |
1139 | #else |
1140 | if (gid == egid) /* special case $( = $) */ |
1141 | (void)setgid(gid); |
748a9306 |
1142 | else { |
1143 | gid = (I32)getgid(); |
463ee0b2 |
1144 | croak("setrgid() not implemented"); |
748a9306 |
1145 | } |
79072805 |
1146 | #endif |
1147 | #endif |
85e6fe83 |
1148 | #endif |
79072805 |
1149 | gid = (I32)getgid(); |
463ee0b2 |
1150 | tainting |= (euid != uid || egid != gid); |
79072805 |
1151 | break; |
1152 | case ')': |
463ee0b2 |
1153 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1154 | if (delaymagic) { |
1155 | delaymagic |= DM_EGID; |
1156 | break; /* don't do magic till later */ |
1157 | } |
1158 | #ifdef HAS_SETEGID |
85e6fe83 |
1159 | (void)setegid((Gid_t)egid); |
79072805 |
1160 | #else |
1161 | #ifdef HAS_SETREGID |
85e6fe83 |
1162 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1163 | #else |
1164 | #ifdef HAS_SETRESGID |
1165 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); |
79072805 |
1166 | #else |
1167 | if (egid == gid) /* special case $) = $( */ |
1168 | (void)setgid(egid); |
748a9306 |
1169 | else { |
1170 | egid = (I32)getegid(); |
463ee0b2 |
1171 | croak("setegid() not implemented"); |
748a9306 |
1172 | } |
79072805 |
1173 | #endif |
1174 | #endif |
85e6fe83 |
1175 | #endif |
79072805 |
1176 | egid = (I32)getegid(); |
463ee0b2 |
1177 | tainting |= (euid != uid || egid != gid); |
79072805 |
1178 | break; |
1179 | case ':': |
a0d0e21e |
1180 | chopset = SvPV_force(sv,na); |
79072805 |
1181 | break; |
1182 | case '0': |
1183 | if (!origalen) { |
1184 | s = origargv[0]; |
1185 | s += strlen(s); |
1186 | /* See if all the arguments are contiguous in memory */ |
1187 | for (i = 1; i < origargc; i++) { |
1188 | if (origargv[i] == s + 1) |
1189 | s += strlen(++s); /* this one is ok too */ |
1190 | } |
1191 | if (origenviron[0] == s + 1) { /* can grab env area too? */ |
1192 | my_setenv("NoNeSuCh", Nullch); |
1193 | /* force copy of environment */ |
1194 | for (i = 0; origenviron[i]; i++) |
1195 | if (origenviron[i] == s + 1) |
1196 | s += strlen(++s); |
1197 | } |
1198 | origalen = s - origargv[0]; |
1199 | } |
a0d0e21e |
1200 | s = SvPV_force(sv,len); |
8990e307 |
1201 | i = len; |
79072805 |
1202 | if (i >= origalen) { |
1203 | i = origalen; |
1204 | SvCUR_set(sv, i); |
1205 | *SvEND(sv) = '\0'; |
1206 | Copy(s, origargv[0], i, char); |
1207 | } |
1208 | else { |
1209 | Copy(s, origargv[0], i, char); |
1210 | s = origargv[0]+i; |
1211 | *s++ = '\0'; |
1212 | while (++i < origalen) |
8990e307 |
1213 | *s++ = ' '; |
1214 | s = origargv[0]+i; |
ed6116ce |
1215 | for (i = 1; i < origargc; i++) |
8990e307 |
1216 | origargv[i] = Nullch; |
79072805 |
1217 | } |
1218 | break; |
1219 | } |
1220 | return 0; |
1221 | } |
1222 | |
1223 | I32 |
1224 | whichsig(sig) |
1225 | char *sig; |
1226 | { |
1227 | register char **sigv; |
1228 | |
1229 | for (sigv = sig_name+1; *sigv; sigv++) |
1230 | if (strEQ(sig,*sigv)) |
8e07c86e |
1231 | return sig_num[sigv - sig_name]; |
79072805 |
1232 | #ifdef SIGCLD |
1233 | if (strEQ(sig,"CHLD")) |
1234 | return SIGCLD; |
1235 | #endif |
1236 | #ifdef SIGCHLD |
1237 | if (strEQ(sig,"CLD")) |
1238 | return SIGCHLD; |
1239 | #endif |
1240 | return 0; |
1241 | } |
1242 | |
8e07c86e |
1243 | char * |
1244 | whichsigname(sig) |
1245 | int sig; |
1246 | { |
1247 | register int i; |
1248 | for (i = 1; sig_num[i]; i++) /* sig_num[] is a 0-terminated list */ |
1249 | if (sig_num[i] == sig) |
1250 | return sig_name[i]; |
1251 | return Nullch; |
1252 | } |
1253 | |
ecfc5424 |
1254 | Signal_t |
79072805 |
1255 | sighandler(sig) |
a0d0e21e |
1256 | int sig; |
79072805 |
1257 | { |
1258 | dSP; |
1259 | GV *gv; |
a0d0e21e |
1260 | HV *st; |
79072805 |
1261 | SV *sv; |
1262 | CV *cv; |
79072805 |
1263 | AV *oldstack; |
8e07c86e |
1264 | char *signame; |
79072805 |
1265 | |
1266 | #ifdef OS2 /* or anybody else who requires SIG_ACK */ |
1267 | signal(sig, SIG_ACK); |
1268 | #endif |
1269 | |
8e07c86e |
1270 | signame = whichsigname(sig); |
1271 | cv = sv_2cv(*hv_fetch(GvHVn(siggv),signame,strlen(signame), |
a0d0e21e |
1272 | TRUE), |
1273 | &st, &gv, TRUE); |
1274 | if (!cv || !CvROOT(cv) && |
8e07c86e |
1275 | *signame == 'C' && instr(signame,"LD")) { |
a0d0e21e |
1276 | |
8e07c86e |
1277 | if (signame[1] == 'H') |
a0d0e21e |
1278 | cv = sv_2cv(*hv_fetch(GvHVn(siggv),"CLD",3,TRUE), |
1279 | &st, &gv, TRUE); |
79072805 |
1280 | else |
a0d0e21e |
1281 | cv = sv_2cv(*hv_fetch(GvHVn(siggv),"CHLD",4,TRUE), |
1282 | &st, &gv, TRUE); |
1283 | /* gag */ |
79072805 |
1284 | } |
a0d0e21e |
1285 | if (!cv || !CvROOT(cv)) { |
79072805 |
1286 | if (dowarn) |
1287 | warn("SIG%s handler \"%s\" not defined.\n", |
8e07c86e |
1288 | signame, GvENAME(gv) ); |
79072805 |
1289 | return; |
1290 | } |
1291 | |
1292 | oldstack = stack; |
a0d0e21e |
1293 | if (stack != signalstack) |
1294 | AvFILL(signalstack) = 0; |
79072805 |
1295 | SWITCHSTACK(stack, signalstack); |
1296 | |
8990e307 |
1297 | sv = sv_newmortal(); |
8e07c86e |
1298 | sv_setpv(sv,signame); |
a0d0e21e |
1299 | PUSHMARK(sp); |
79072805 |
1300 | PUSHs(sv); |
79072805 |
1301 | PUTBACK; |
a0d0e21e |
1302 | |
1303 | perl_call_sv((SV*)cv, G_DISCARD); |
79072805 |
1304 | |
1305 | SWITCHSTACK(signalstack, oldstack); |
79072805 |
1306 | |
1307 | return; |
1308 | } |