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); |
4633a7c4 |
83 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 |
84 | |
85 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { |
79072805 |
86 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 |
87 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e |
88 | if (mg->mg_flags & MGf_GSKIP) { |
89 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ |
90 | savemagic = 0; |
91 | } |
79072805 |
92 | if (vtbl && vtbl->svt_set) |
93 | (*vtbl->svt_set)(sv, mg); |
94 | } |
463ee0b2 |
95 | |
96 | if (SvMAGIC(sv)) { |
a0d0e21e |
97 | if (savemagic) |
98 | SvFLAGS(sv) |= savemagic; |
99 | else |
100 | mg_magical(sv); |
8990e307 |
101 | if (SvGMAGICAL(sv)) |
102 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
463ee0b2 |
103 | } |
104 | |
79072805 |
105 | return 0; |
106 | } |
107 | |
108 | U32 |
109 | mg_len(sv) |
110 | SV* sv; |
111 | { |
112 | MAGIC* mg; |
748a9306 |
113 | char *junk; |
463ee0b2 |
114 | STRLEN len; |
463ee0b2 |
115 | |
79072805 |
116 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
117 | MGVTBL* vtbl = mg->mg_virtual; |
85e6fe83 |
118 | if (vtbl && vtbl->svt_len) { |
119 | U32 savemagic = SvMAGICAL(sv); |
463ee0b2 |
120 | |
85e6fe83 |
121 | SvMAGICAL_off(sv); |
122 | SvFLAGS(sv) |= (SvFLAGS(sv)&(SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
123 | |
a0d0e21e |
124 | /* omit MGf_GSKIP -- not changed here */ |
85e6fe83 |
125 | len = (*vtbl->svt_len)(sv, mg); |
463ee0b2 |
126 | |
85e6fe83 |
127 | SvFLAGS(sv) |= savemagic; |
128 | if (SvGMAGICAL(sv)) |
129 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
130 | |
131 | return len; |
132 | } |
133 | } |
134 | |
748a9306 |
135 | junk = SvPV(sv, len); |
463ee0b2 |
136 | return len; |
79072805 |
137 | } |
138 | |
139 | int |
140 | mg_clear(sv) |
141 | SV* sv; |
142 | { |
143 | MAGIC* mg; |
8990e307 |
144 | U32 savemagic = SvMAGICAL(sv); |
463ee0b2 |
145 | |
146 | SvMAGICAL_off(sv); |
8990e307 |
147 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 |
148 | |
79072805 |
149 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
150 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e |
151 | /* omit GSKIP -- never set here */ |
152 | |
79072805 |
153 | if (vtbl && vtbl->svt_clear) |
154 | (*vtbl->svt_clear)(sv, mg); |
155 | } |
463ee0b2 |
156 | |
8990e307 |
157 | SvFLAGS(sv) |= savemagic; |
158 | if (SvGMAGICAL(sv)) |
159 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
463ee0b2 |
160 | |
79072805 |
161 | return 0; |
162 | } |
163 | |
93a17b20 |
164 | MAGIC* |
165 | mg_find(sv, type) |
166 | SV* sv; |
a0d0e21e |
167 | int type; |
93a17b20 |
168 | { |
169 | MAGIC* mg; |
93a17b20 |
170 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
171 | if (mg->mg_type == type) |
172 | return mg; |
173 | } |
174 | return 0; |
175 | } |
176 | |
79072805 |
177 | int |
463ee0b2 |
178 | mg_copy(sv, nsv, key, klen) |
79072805 |
179 | SV* sv; |
463ee0b2 |
180 | SV* nsv; |
181 | char *key; |
182 | STRLEN klen; |
79072805 |
183 | { |
463ee0b2 |
184 | int count = 0; |
79072805 |
185 | MAGIC* mg; |
463ee0b2 |
186 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
187 | if (isUPPER(mg->mg_type)) { |
a0d0e21e |
188 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 |
189 | count++; |
79072805 |
190 | } |
79072805 |
191 | } |
463ee0b2 |
192 | return count; |
79072805 |
193 | } |
194 | |
195 | int |
463ee0b2 |
196 | mg_free(sv) |
79072805 |
197 | SV* sv; |
198 | { |
199 | MAGIC* mg; |
200 | MAGIC* moremagic; |
201 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { |
202 | MGVTBL* vtbl = mg->mg_virtual; |
203 | moremagic = mg->mg_moremagic; |
204 | if (vtbl && vtbl->svt_free) |
205 | (*vtbl->svt_free)(sv, mg); |
93a17b20 |
206 | if (mg->mg_ptr && mg->mg_type != 'g') |
79072805 |
207 | Safefree(mg->mg_ptr); |
85e6fe83 |
208 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 |
209 | SvREFCNT_dec(mg->mg_obj); |
79072805 |
210 | Safefree(mg); |
211 | } |
212 | SvMAGIC(sv) = 0; |
213 | return 0; |
214 | } |
215 | |
216 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
217 | #include <signal.h> |
218 | #endif |
219 | |
93a17b20 |
220 | U32 |
221 | magic_len(sv, mg) |
222 | SV *sv; |
223 | MAGIC *mg; |
224 | { |
225 | register I32 paren; |
226 | register char *s; |
227 | register I32 i; |
748a9306 |
228 | char *t; |
93a17b20 |
229 | |
230 | switch (*mg->mg_ptr) { |
231 | case '1': case '2': case '3': case '4': |
232 | case '5': case '6': case '7': case '8': case '9': case '&': |
233 | if (curpm) { |
234 | paren = atoi(mg->mg_ptr); |
235 | getparen: |
236 | if (curpm->op_pmregexp && |
237 | paren <= curpm->op_pmregexp->nparens && |
748a9306 |
238 | (s = curpm->op_pmregexp->startp[paren]) && |
239 | (t = curpm->op_pmregexp->endp[paren]) ) { |
240 | i = t - s; |
93a17b20 |
241 | if (i >= 0) |
242 | return i; |
93a17b20 |
243 | } |
93a17b20 |
244 | } |
748a9306 |
245 | return 0; |
93a17b20 |
246 | break; |
247 | case '+': |
248 | if (curpm) { |
249 | paren = curpm->op_pmregexp->lastparen; |
a0d0e21e |
250 | if (!paren) |
251 | return 0; |
93a17b20 |
252 | goto getparen; |
253 | } |
748a9306 |
254 | return 0; |
93a17b20 |
255 | break; |
256 | case '`': |
257 | if (curpm) { |
258 | if (curpm->op_pmregexp && |
259 | (s = curpm->op_pmregexp->subbeg) ) { |
260 | i = curpm->op_pmregexp->startp[0] - s; |
261 | if (i >= 0) |
262 | return i; |
93a17b20 |
263 | } |
93a17b20 |
264 | } |
748a9306 |
265 | return 0; |
93a17b20 |
266 | case '\'': |
267 | if (curpm) { |
268 | if (curpm->op_pmregexp && |
269 | (s = curpm->op_pmregexp->endp[0]) ) { |
270 | return (STRLEN) (curpm->op_pmregexp->subend - s); |
271 | } |
93a17b20 |
272 | } |
748a9306 |
273 | return 0; |
93a17b20 |
274 | case ',': |
275 | return (STRLEN)ofslen; |
276 | case '\\': |
277 | return (STRLEN)orslen; |
278 | } |
279 | magic_get(sv,mg); |
280 | if (!SvPOK(sv) && SvNIOK(sv)) |
463ee0b2 |
281 | sv_2pv(sv, &na); |
93a17b20 |
282 | if (SvPOK(sv)) |
283 | return SvCUR(sv); |
284 | return 0; |
285 | } |
286 | |
79072805 |
287 | int |
288 | magic_get(sv, mg) |
289 | SV *sv; |
290 | MAGIC *mg; |
291 | { |
292 | register I32 paren; |
293 | register char *s; |
294 | register I32 i; |
748a9306 |
295 | char *t; |
79072805 |
296 | |
297 | switch (*mg->mg_ptr) { |
748a9306 |
298 | case '\001': /* ^A */ |
299 | sv_setsv(sv, bodytarget); |
300 | break; |
79072805 |
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 |
307 | case '\010': /* ^H */ |
308 | sv_setiv(sv,(I32)hints); |
309 | break; |
79072805 |
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 |
332 | (s = curpm->op_pmregexp->startp[paren]) && |
748a9306 |
333 | (t = curpm->op_pmregexp->endp[paren]) ) { |
334 | i = t - s; |
335 | if (i >= 0) { |
336 | MAGIC *tmg; |
79072805 |
337 | sv_setpvn(sv,s,i); |
748a9306 |
338 | if (tainting && (tmg = mg_find(sv,'t'))) |
339 | tmg->mg_len = 0; /* guarantee $1 untainted */ |
340 | break; |
341 | } |
79072805 |
342 | } |
79072805 |
343 | } |
748a9306 |
344 | sv_setsv(sv,&sv_undef); |
79072805 |
345 | break; |
346 | case '+': |
347 | if (curpm) { |
348 | paren = curpm->op_pmregexp->lastparen; |
a0d0e21e |
349 | if (paren) |
350 | goto getparen; |
79072805 |
351 | } |
748a9306 |
352 | sv_setsv(sv,&sv_undef); |
79072805 |
353 | break; |
354 | case '`': |
355 | if (curpm) { |
356 | if (curpm->op_pmregexp && |
357 | (s = curpm->op_pmregexp->subbeg) ) { |
358 | i = curpm->op_pmregexp->startp[0] - s; |
748a9306 |
359 | if (i >= 0) { |
79072805 |
360 | sv_setpvn(sv,s,i); |
748a9306 |
361 | break; |
362 | } |
79072805 |
363 | } |
79072805 |
364 | } |
748a9306 |
365 | sv_setsv(sv,&sv_undef); |
79072805 |
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); |
748a9306 |
372 | break; |
79072805 |
373 | } |
79072805 |
374 | } |
748a9306 |
375 | sv_setsv(sv,&sv_undef); |
79072805 |
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 |
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 |
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 |
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 |
405 | break; |
406 | case '-': |
a0d0e21e |
407 | sv_setiv(sv,(I32)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 |
408 | break; |
409 | case '%': |
a0d0e21e |
410 | sv_setiv(sv,(I32)IoPAGE(GvIOp(defoutgv))); |
79072805 |
411 | break; |
412 | #endif |
413 | case ':': |
414 | break; |
415 | case '/': |
416 | break; |
417 | case '[': |
a0d0e21e |
418 | sv_setiv(sv,(I32)curcop->cop_arybase); |
79072805 |
419 | break; |
420 | case '|': |
a0d0e21e |
421 | sv_setiv(sv, (IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 |
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 |
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 |
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 |
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 |
494 | STRLEN len; |
495 | I32 i; |
496 | s = SvPV(sv,len); |
79072805 |
497 | my_setenv(mg->mg_ptr,s); |
a0d0e21e |
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 |
507 | /* And you'll never guess what the dog had */ |
508 | /* in its mouth... */ |
463ee0b2 |
509 | if (tainting) { |
510 | if (s && strEQ(mg->mg_ptr,"PATH")) { |
a0d0e21e |
511 | char *strend = s + len; |
463ee0b2 |
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 |
520 | } |
521 | } |
79072805 |
522 | return 0; |
523 | } |
524 | |
525 | int |
85e6fe83 |
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 |
535 | magic_setsig(sv,mg) |
536 | SV* sv; |
537 | MAGIC* mg; |
538 | { |
539 | register char *s; |
540 | I32 i; |
748a9306 |
541 | SV** svp; |
a0d0e21e |
542 | |
748a9306 |
543 | s = mg->mg_ptr; |
544 | if (*s == '_') { |
545 | if (strEQ(s,"__DIE__")) |
546 | svp = &diehook; |
547 | else if (strEQ(s,"__WARN__")) |
548 | svp = &warnhook; |
549 | else if (strEQ(s,"__PARSE__")) |
550 | svp = &parsehook; |
551 | else |
552 | croak("No such hook: %s", s); |
553 | i = 0; |
4633a7c4 |
554 | if (*svp) { |
555 | SvREFCNT_dec(*svp); |
556 | *svp = 0; |
557 | } |
748a9306 |
558 | } |
559 | else { |
560 | i = whichsig(s); /* ...no, a brick */ |
561 | if (!i) { |
562 | if (dowarn || strEQ(s,"ALARM")) |
563 | warn("No such signal: SIG%s", s); |
564 | return 0; |
565 | } |
566 | } |
a0d0e21e |
567 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 |
568 | if (i) |
569 | (void)signal(i,sighandler); |
570 | else |
571 | *svp = SvREFCNT_inc(sv); |
a0d0e21e |
572 | return 0; |
573 | } |
574 | s = SvPV_force(sv,na); |
748a9306 |
575 | if (strEQ(s,"IGNORE")) { |
576 | if (i) |
577 | (void)signal(i,SIG_IGN); |
578 | else |
579 | *svp = 0; |
580 | } |
581 | else if (strEQ(s,"DEFAULT") || !*s) { |
582 | if (i) |
583 | (void)signal(i,SIG_DFL); |
584 | else |
585 | *svp = 0; |
586 | } |
79072805 |
587 | else { |
2304df62 |
588 | if (!strchr(s,':') && !strchr(s,'\'')) { |
589 | sprintf(tokenbuf, "main::%s",s); |
79072805 |
590 | sv_setpv(sv,tokenbuf); |
591 | } |
748a9306 |
592 | if (i) |
593 | (void)signal(i,sighandler); |
594 | else |
595 | *svp = SvREFCNT_inc(sv); |
79072805 |
596 | } |
597 | return 0; |
598 | } |
599 | |
600 | int |
463ee0b2 |
601 | magic_setisa(sv,mg) |
79072805 |
602 | SV* sv; |
603 | MAGIC* mg; |
604 | { |
463ee0b2 |
605 | sub_generation++; |
606 | return 0; |
607 | } |
608 | |
a0d0e21e |
609 | #ifdef OVERLOAD |
610 | |
463ee0b2 |
611 | int |
a0d0e21e |
612 | magic_setamagic(sv,mg) |
463ee0b2 |
613 | SV* sv; |
614 | MAGIC* mg; |
615 | { |
a0d0e21e |
616 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
617 | amagic_generation++; |
463ee0b2 |
618 | |
a0d0e21e |
619 | return 0; |
620 | } |
621 | #endif /* OVERLOAD */ |
463ee0b2 |
622 | |
a0d0e21e |
623 | static int |
624 | magic_methpack(sv,mg,meth) |
625 | SV* sv; |
626 | MAGIC* mg; |
627 | char *meth; |
628 | { |
629 | dSP; |
463ee0b2 |
630 | |
a0d0e21e |
631 | ENTER; |
632 | SAVETMPS; |
633 | PUSHMARK(sp); |
634 | EXTEND(sp, 2); |
635 | PUSHs(mg->mg_obj); |
463ee0b2 |
636 | if (mg->mg_ptr) |
a0d0e21e |
637 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
638 | else if (mg->mg_type == 'p') |
639 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
463ee0b2 |
640 | PUTBACK; |
641 | |
a0d0e21e |
642 | if (perl_call_method(meth, G_SCALAR)) |
643 | sv_setsv(sv, *stack_sp--); |
463ee0b2 |
644 | |
a0d0e21e |
645 | FREETMPS; |
646 | LEAVE; |
647 | return 0; |
648 | } |
463ee0b2 |
649 | |
a0d0e21e |
650 | int |
651 | magic_getpack(sv,mg) |
652 | SV* sv; |
653 | MAGIC* mg; |
654 | { |
655 | magic_methpack(sv,mg,"FETCH"); |
656 | if (mg->mg_ptr) |
657 | mg->mg_flags |= MGf_GSKIP; |
463ee0b2 |
658 | return 0; |
659 | } |
660 | |
661 | int |
662 | magic_setpack(sv,mg) |
663 | SV* sv; |
664 | MAGIC* mg; |
665 | { |
463ee0b2 |
666 | dSP; |
463ee0b2 |
667 | |
a0d0e21e |
668 | PUSHMARK(sp); |
669 | EXTEND(sp, 3); |
670 | PUSHs(mg->mg_obj); |
463ee0b2 |
671 | if (mg->mg_ptr) |
a0d0e21e |
672 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
673 | else if (mg->mg_type == 'p') |
674 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
463ee0b2 |
675 | PUSHs(sv); |
676 | PUTBACK; |
677 | |
a0d0e21e |
678 | perl_call_method("STORE", G_SCALAR|G_DISCARD); |
463ee0b2 |
679 | |
680 | return 0; |
681 | } |
682 | |
683 | int |
684 | magic_clearpack(sv,mg) |
685 | SV* sv; |
686 | MAGIC* mg; |
687 | { |
a0d0e21e |
688 | return magic_methpack(sv,mg,"DELETE"); |
689 | } |
463ee0b2 |
690 | |
a0d0e21e |
691 | int magic_wipepack(sv,mg) |
692 | SV* sv; |
693 | MAGIC* mg; |
694 | { |
695 | dSP; |
463ee0b2 |
696 | |
a0d0e21e |
697 | PUSHMARK(sp); |
698 | XPUSHs(mg->mg_obj); |
463ee0b2 |
699 | PUTBACK; |
463ee0b2 |
700 | |
a0d0e21e |
701 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
463ee0b2 |
702 | |
703 | return 0; |
704 | } |
705 | |
706 | int |
707 | magic_nextpack(sv,mg,key) |
708 | SV* sv; |
709 | MAGIC* mg; |
710 | SV* key; |
711 | { |
463ee0b2 |
712 | dSP; |
a0d0e21e |
713 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 |
714 | |
715 | ENTER; |
a0d0e21e |
716 | SAVETMPS; |
717 | PUSHMARK(sp); |
718 | EXTEND(sp, 2); |
719 | PUSHs(mg->mg_obj); |
463ee0b2 |
720 | if (SvOK(key)) |
721 | PUSHs(key); |
722 | PUTBACK; |
723 | |
a0d0e21e |
724 | if (perl_call_method(meth, G_SCALAR)) |
725 | sv_setsv(key, *stack_sp--); |
463ee0b2 |
726 | |
a0d0e21e |
727 | FREETMPS; |
728 | LEAVE; |
79072805 |
729 | return 0; |
730 | } |
731 | |
732 | int |
a0d0e21e |
733 | magic_existspack(sv,mg) |
734 | SV* sv; |
735 | MAGIC* mg; |
736 | { |
737 | return magic_methpack(sv,mg,"EXISTS"); |
738 | } |
739 | |
740 | int |
79072805 |
741 | magic_setdbline(sv,mg) |
742 | SV* sv; |
743 | MAGIC* mg; |
744 | { |
745 | OP *o; |
746 | I32 i; |
747 | GV* gv; |
748 | SV** svp; |
749 | |
750 | gv = DBline; |
751 | i = SvTRUE(sv); |
752 | svp = av_fetch(GvAV(gv),atoi(mg->mg_ptr), FALSE); |
8990e307 |
753 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 |
754 | o->op_private = i; |
79072805 |
755 | else |
756 | warn("Can't break at that line\n"); |
757 | return 0; |
758 | } |
759 | |
760 | int |
761 | magic_getarylen(sv,mg) |
762 | SV* sv; |
763 | MAGIC* mg; |
764 | { |
a0d0e21e |
765 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 |
766 | return 0; |
767 | } |
768 | |
769 | int |
770 | magic_setarylen(sv,mg) |
771 | SV* sv; |
772 | MAGIC* mg; |
773 | { |
a0d0e21e |
774 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
775 | return 0; |
776 | } |
777 | |
778 | int |
779 | magic_getpos(sv,mg) |
780 | SV* sv; |
781 | MAGIC* mg; |
782 | { |
783 | SV* lsv = LvTARG(sv); |
784 | |
785 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
786 | mg = mg_find(lsv, 'g'); |
787 | if (mg && mg->mg_len >= 0) { |
788 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); |
789 | return 0; |
790 | } |
791 | } |
792 | (void)SvOK_off(sv); |
793 | return 0; |
794 | } |
795 | |
796 | int |
797 | magic_setpos(sv,mg) |
798 | SV* sv; |
799 | MAGIC* mg; |
800 | { |
801 | SV* lsv = LvTARG(sv); |
802 | SSize_t pos; |
803 | STRLEN len; |
804 | |
805 | mg = 0; |
806 | |
807 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
808 | mg = mg_find(lsv, 'g'); |
809 | if (!mg) { |
810 | if (!SvOK(sv)) |
811 | return 0; |
812 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); |
813 | mg = mg_find(lsv, 'g'); |
814 | } |
815 | else if (!SvOK(sv)) { |
816 | mg->mg_len = -1; |
817 | return 0; |
818 | } |
819 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); |
820 | |
821 | pos = SvIV(sv) - curcop->cop_arybase; |
822 | if (pos < 0) { |
823 | pos += len; |
824 | if (pos < 0) |
825 | pos = 0; |
826 | } |
827 | else if (pos > len) |
828 | pos = len; |
829 | mg->mg_len = pos; |
830 | |
79072805 |
831 | return 0; |
832 | } |
833 | |
834 | int |
835 | magic_getglob(sv,mg) |
836 | SV* sv; |
837 | MAGIC* mg; |
838 | { |
839 | gv_efullname(sv,((GV*)sv));/* a gv value, be nice */ |
840 | return 0; |
841 | } |
842 | |
843 | int |
844 | magic_setglob(sv,mg) |
845 | SV* sv; |
846 | MAGIC* mg; |
847 | { |
848 | register char *s; |
849 | GV* gv; |
850 | |
851 | if (!SvOK(sv)) |
852 | return 0; |
463ee0b2 |
853 | s = SvPV(sv, na); |
79072805 |
854 | if (*s == '*' && s[1]) |
855 | s++; |
85e6fe83 |
856 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 |
857 | if (sv == (SV*)gv) |
858 | return 0; |
859 | if (GvGP(sv)) |
860 | gp_free(sv); |
861 | GvGP(sv) = gp_ref(GvGP(gv)); |
862 | if (!GvAV(gv)) |
863 | gv_AVadd(gv); |
864 | if (!GvHV(gv)) |
865 | gv_HVadd(gv); |
a0d0e21e |
866 | if (!GvIOp(gv)) |
867 | GvIOp(gv) = newIO(); |
79072805 |
868 | return 0; |
869 | } |
870 | |
871 | int |
872 | magic_setsubstr(sv,mg) |
873 | SV* sv; |
874 | MAGIC* mg; |
875 | { |
8990e307 |
876 | STRLEN len; |
877 | char *tmps = SvPV(sv,len); |
878 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); |
79072805 |
879 | return 0; |
880 | } |
881 | |
882 | int |
463ee0b2 |
883 | magic_gettaint(sv,mg) |
884 | SV* sv; |
885 | MAGIC* mg; |
886 | { |
748a9306 |
887 | if (mg->mg_len & 1) |
888 | tainted = TRUE; |
889 | else if (mg->mg_len & 2 && mg->mg_obj == sv) /* kludge */ |
890 | tainted = TRUE; |
463ee0b2 |
891 | return 0; |
892 | } |
893 | |
894 | int |
895 | magic_settaint(sv,mg) |
896 | SV* sv; |
897 | MAGIC* mg; |
898 | { |
748a9306 |
899 | if (localizing) { |
900 | if (localizing == 1) |
901 | mg->mg_len <<= 1; |
902 | else |
903 | mg->mg_len >>= 1; |
a0d0e21e |
904 | } |
748a9306 |
905 | else if (tainted) |
906 | mg->mg_len |= 1; |
907 | else |
908 | mg->mg_len &= ~1; |
463ee0b2 |
909 | return 0; |
910 | } |
911 | |
912 | int |
79072805 |
913 | magic_setvec(sv,mg) |
914 | SV* sv; |
915 | MAGIC* mg; |
916 | { |
917 | do_vecset(sv); /* XXX slurp this routine */ |
918 | return 0; |
919 | } |
920 | |
921 | int |
93a17b20 |
922 | magic_setmglob(sv,mg) |
923 | SV* sv; |
924 | MAGIC* mg; |
925 | { |
a0d0e21e |
926 | mg->mg_len = -1; |
93a17b20 |
927 | return 0; |
928 | } |
929 | |
930 | int |
79072805 |
931 | magic_setbm(sv,mg) |
932 | SV* sv; |
933 | MAGIC* mg; |
934 | { |
463ee0b2 |
935 | sv_unmagic(sv, 'B'); |
79072805 |
936 | SvVALID_off(sv); |
937 | return 0; |
938 | } |
939 | |
940 | int |
941 | magic_setuvar(sv,mg) |
942 | SV* sv; |
943 | MAGIC* mg; |
944 | { |
945 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; |
946 | |
947 | if (uf && uf->uf_set) |
948 | (*uf->uf_set)(uf->uf_index, sv); |
949 | return 0; |
950 | } |
951 | |
952 | int |
953 | magic_set(sv,mg) |
954 | SV* sv; |
955 | MAGIC* mg; |
956 | { |
957 | register char *s; |
958 | I32 i; |
8990e307 |
959 | STRLEN len; |
79072805 |
960 | switch (*mg->mg_ptr) { |
748a9306 |
961 | case '\001': /* ^A */ |
962 | sv_setsv(bodytarget, sv); |
963 | break; |
79072805 |
964 | case '\004': /* ^D */ |
8990e307 |
965 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 |
966 | DEBUG_x(dump_all()); |
967 | break; |
968 | case '\006': /* ^F */ |
463ee0b2 |
969 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
970 | break; |
a0d0e21e |
971 | case '\010': /* ^H */ |
972 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
973 | break; |
79072805 |
974 | case '\t': /* ^I */ |
975 | if (inplace) |
976 | Safefree(inplace); |
977 | if (SvOK(sv)) |
a0d0e21e |
978 | inplace = savepv(SvPV(sv,na)); |
79072805 |
979 | else |
980 | inplace = Nullch; |
981 | break; |
982 | case '\020': /* ^P */ |
463ee0b2 |
983 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
984 | if (i != perldb) { |
985 | if (perldb) |
986 | oldlastpm = curpm; |
987 | else |
988 | curpm = oldlastpm; |
989 | } |
990 | perldb = i; |
991 | break; |
992 | case '\024': /* ^T */ |
85e6fe83 |
993 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
994 | break; |
995 | case '\027': /* ^W */ |
463ee0b2 |
996 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
997 | break; |
998 | case '.': |
748a9306 |
999 | if (localizing) { |
1000 | if (localizing == 1) |
1001 | save_sptr((SV**)&last_in_gv); |
1002 | } |
2304df62 |
1003 | else if (SvOK(sv)) |
a0d0e21e |
1004 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 |
1005 | break; |
1006 | case '^': |
a0d0e21e |
1007 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1008 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); |
1009 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1010 | break; |
1011 | case '~': |
a0d0e21e |
1012 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1013 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); |
1014 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); |
79072805 |
1015 | break; |
1016 | case '=': |
a0d0e21e |
1017 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1018 | break; |
1019 | case '-': |
a0d0e21e |
1020 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1021 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) |
1022 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; |
79072805 |
1023 | break; |
1024 | case '%': |
a0d0e21e |
1025 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1026 | break; |
1027 | case '|': |
a0d0e21e |
1028 | IoFLAGS(GvIOp(defoutgv)) &= ~IOf_FLUSH; |
463ee0b2 |
1029 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) != 0) { |
a0d0e21e |
1030 | IoFLAGS(GvIOp(defoutgv)) |= IOf_FLUSH; |
79072805 |
1031 | } |
1032 | break; |
1033 | case '*': |
463ee0b2 |
1034 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1035 | multiline = (i != 0); |
1036 | break; |
1037 | case '/': |
a0d0e21e |
1038 | if (SvOK(sv)) { |
1039 | nrs = rs = SvPV_force(sv,rslen); |
8990e307 |
1040 | nrslen = rslen; |
79072805 |
1041 | if (rspara = !rslen) { |
93a17b20 |
1042 | nrs = rs = "\n\n"; |
1043 | nrslen = rslen = 2; |
79072805 |
1044 | } |
93a17b20 |
1045 | nrschar = rschar = rs[rslen - 1]; |
79072805 |
1046 | } |
1047 | else { |
93a17b20 |
1048 | nrschar = rschar = 0777; /* fake a non-existent char */ |
1049 | nrslen = rslen = 1; |
79072805 |
1050 | } |
1051 | break; |
1052 | case '\\': |
1053 | if (ors) |
1054 | Safefree(ors); |
a0d0e21e |
1055 | ors = savepv(SvPV(sv,orslen)); |
79072805 |
1056 | break; |
1057 | case ',': |
1058 | if (ofs) |
1059 | Safefree(ofs); |
a0d0e21e |
1060 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 |
1061 | break; |
1062 | case '#': |
1063 | if (ofmt) |
1064 | Safefree(ofmt); |
a0d0e21e |
1065 | ofmt = savepv(SvPV(sv,na)); |
79072805 |
1066 | break; |
1067 | case '[': |
a0d0e21e |
1068 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1069 | break; |
1070 | case '?': |
748a9306 |
1071 | statusvalue = FIXSTATUS(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 |
1072 | break; |
1073 | case '!': |
748a9306 |
1074 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv),SS$_ABORT); /* will anyone ever use this? */ |
79072805 |
1075 | break; |
1076 | case '<': |
463ee0b2 |
1077 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1078 | if (delaymagic) { |
1079 | delaymagic |= DM_RUID; |
1080 | break; /* don't do magic till later */ |
1081 | } |
1082 | #ifdef HAS_SETRUID |
85e6fe83 |
1083 | (void)setruid((Uid_t)uid); |
79072805 |
1084 | #else |
1085 | #ifdef HAS_SETREUID |
85e6fe83 |
1086 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 |
1087 | #else |
85e6fe83 |
1088 | #ifdef HAS_SETRESUID |
1089 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); |
79072805 |
1090 | #else |
1091 | if (uid == euid) /* special case $< = $> */ |
1092 | (void)setuid(uid); |
a0d0e21e |
1093 | else { |
1094 | uid = (I32)getuid(); |
463ee0b2 |
1095 | croak("setruid() not implemented"); |
a0d0e21e |
1096 | } |
79072805 |
1097 | #endif |
1098 | #endif |
85e6fe83 |
1099 | #endif |
748a9306 |
1100 | uid = (I32)getuid(); |
4633a7c4 |
1101 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1102 | break; |
1103 | case '>': |
463ee0b2 |
1104 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1105 | if (delaymagic) { |
1106 | delaymagic |= DM_EUID; |
1107 | break; /* don't do magic till later */ |
1108 | } |
1109 | #ifdef HAS_SETEUID |
85e6fe83 |
1110 | (void)seteuid((Uid_t)euid); |
79072805 |
1111 | #else |
1112 | #ifdef HAS_SETREUID |
85e6fe83 |
1113 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1114 | #else |
1115 | #ifdef HAS_SETRESUID |
1116 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); |
79072805 |
1117 | #else |
1118 | if (euid == uid) /* special case $> = $< */ |
1119 | setuid(euid); |
a0d0e21e |
1120 | else { |
1121 | euid = (I32)geteuid(); |
463ee0b2 |
1122 | croak("seteuid() not implemented"); |
a0d0e21e |
1123 | } |
79072805 |
1124 | #endif |
1125 | #endif |
85e6fe83 |
1126 | #endif |
79072805 |
1127 | euid = (I32)geteuid(); |
4633a7c4 |
1128 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1129 | break; |
1130 | case '(': |
463ee0b2 |
1131 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1132 | if (delaymagic) { |
1133 | delaymagic |= DM_RGID; |
1134 | break; /* don't do magic till later */ |
1135 | } |
1136 | #ifdef HAS_SETRGID |
85e6fe83 |
1137 | (void)setrgid((Gid_t)gid); |
79072805 |
1138 | #else |
1139 | #ifdef HAS_SETREGID |
85e6fe83 |
1140 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1141 | #else |
1142 | #ifdef HAS_SETRESGID |
1143 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); |
79072805 |
1144 | #else |
1145 | if (gid == egid) /* special case $( = $) */ |
1146 | (void)setgid(gid); |
748a9306 |
1147 | else { |
1148 | gid = (I32)getgid(); |
463ee0b2 |
1149 | croak("setrgid() not implemented"); |
748a9306 |
1150 | } |
79072805 |
1151 | #endif |
1152 | #endif |
85e6fe83 |
1153 | #endif |
79072805 |
1154 | gid = (I32)getgid(); |
4633a7c4 |
1155 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1156 | break; |
1157 | case ')': |
463ee0b2 |
1158 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 |
1159 | if (delaymagic) { |
1160 | delaymagic |= DM_EGID; |
1161 | break; /* don't do magic till later */ |
1162 | } |
1163 | #ifdef HAS_SETEGID |
85e6fe83 |
1164 | (void)setegid((Gid_t)egid); |
79072805 |
1165 | #else |
1166 | #ifdef HAS_SETREGID |
85e6fe83 |
1167 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1168 | #else |
1169 | #ifdef HAS_SETRESGID |
1170 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); |
79072805 |
1171 | #else |
1172 | if (egid == gid) /* special case $) = $( */ |
1173 | (void)setgid(egid); |
748a9306 |
1174 | else { |
1175 | egid = (I32)getegid(); |
463ee0b2 |
1176 | croak("setegid() not implemented"); |
748a9306 |
1177 | } |
79072805 |
1178 | #endif |
1179 | #endif |
85e6fe83 |
1180 | #endif |
79072805 |
1181 | egid = (I32)getegid(); |
4633a7c4 |
1182 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 |
1183 | break; |
1184 | case ':': |
a0d0e21e |
1185 | chopset = SvPV_force(sv,na); |
79072805 |
1186 | break; |
1187 | case '0': |
1188 | if (!origalen) { |
1189 | s = origargv[0]; |
1190 | s += strlen(s); |
1191 | /* See if all the arguments are contiguous in memory */ |
1192 | for (i = 1; i < origargc; i++) { |
1193 | if (origargv[i] == s + 1) |
1194 | s += strlen(++s); /* this one is ok too */ |
1195 | } |
1196 | if (origenviron[0] == s + 1) { /* can grab env area too? */ |
1197 | my_setenv("NoNeSuCh", Nullch); |
1198 | /* force copy of environment */ |
1199 | for (i = 0; origenviron[i]; i++) |
1200 | if (origenviron[i] == s + 1) |
1201 | s += strlen(++s); |
1202 | } |
1203 | origalen = s - origargv[0]; |
1204 | } |
a0d0e21e |
1205 | s = SvPV_force(sv,len); |
8990e307 |
1206 | i = len; |
79072805 |
1207 | if (i >= origalen) { |
1208 | i = origalen; |
1209 | SvCUR_set(sv, i); |
1210 | *SvEND(sv) = '\0'; |
1211 | Copy(s, origargv[0], i, char); |
1212 | } |
1213 | else { |
1214 | Copy(s, origargv[0], i, char); |
1215 | s = origargv[0]+i; |
1216 | *s++ = '\0'; |
1217 | while (++i < origalen) |
8990e307 |
1218 | *s++ = ' '; |
1219 | s = origargv[0]+i; |
ed6116ce |
1220 | for (i = 1; i < origargc; i++) |
8990e307 |
1221 | origargv[i] = Nullch; |
79072805 |
1222 | } |
1223 | break; |
1224 | } |
1225 | return 0; |
1226 | } |
1227 | |
1228 | I32 |
1229 | whichsig(sig) |
1230 | char *sig; |
1231 | { |
1232 | register char **sigv; |
1233 | |
1234 | for (sigv = sig_name+1; *sigv; sigv++) |
1235 | if (strEQ(sig,*sigv)) |
8e07c86e |
1236 | return sig_num[sigv - sig_name]; |
79072805 |
1237 | #ifdef SIGCLD |
1238 | if (strEQ(sig,"CHLD")) |
1239 | return SIGCLD; |
1240 | #endif |
1241 | #ifdef SIGCHLD |
1242 | if (strEQ(sig,"CLD")) |
1243 | return SIGCHLD; |
1244 | #endif |
1245 | return 0; |
1246 | } |
1247 | |
ecfc5424 |
1248 | Signal_t |
79072805 |
1249 | sighandler(sig) |
a0d0e21e |
1250 | int sig; |
79072805 |
1251 | { |
1252 | dSP; |
1253 | GV *gv; |
a0d0e21e |
1254 | HV *st; |
79072805 |
1255 | SV *sv; |
1256 | CV *cv; |
79072805 |
1257 | AV *oldstack; |
8e07c86e |
1258 | char *signame; |
79072805 |
1259 | |
1260 | #ifdef OS2 /* or anybody else who requires SIG_ACK */ |
1261 | signal(sig, SIG_ACK); |
1262 | #endif |
1263 | |
4633a7c4 |
1264 | signame = sig_name[sig]; |
8e07c86e |
1265 | cv = sv_2cv(*hv_fetch(GvHVn(siggv),signame,strlen(signame), |
a0d0e21e |
1266 | TRUE), |
1267 | &st, &gv, TRUE); |
1268 | if (!cv || !CvROOT(cv) && |
8e07c86e |
1269 | *signame == 'C' && instr(signame,"LD")) { |
a0d0e21e |
1270 | |
8e07c86e |
1271 | if (signame[1] == 'H') |
a0d0e21e |
1272 | cv = sv_2cv(*hv_fetch(GvHVn(siggv),"CLD",3,TRUE), |
1273 | &st, &gv, TRUE); |
79072805 |
1274 | else |
a0d0e21e |
1275 | cv = sv_2cv(*hv_fetch(GvHVn(siggv),"CHLD",4,TRUE), |
1276 | &st, &gv, TRUE); |
1277 | /* gag */ |
79072805 |
1278 | } |
a0d0e21e |
1279 | if (!cv || !CvROOT(cv)) { |
79072805 |
1280 | if (dowarn) |
1281 | warn("SIG%s handler \"%s\" not defined.\n", |
8e07c86e |
1282 | signame, GvENAME(gv) ); |
79072805 |
1283 | return; |
1284 | } |
1285 | |
1286 | oldstack = stack; |
a0d0e21e |
1287 | if (stack != signalstack) |
1288 | AvFILL(signalstack) = 0; |
79072805 |
1289 | SWITCHSTACK(stack, signalstack); |
1290 | |
8990e307 |
1291 | sv = sv_newmortal(); |
8e07c86e |
1292 | sv_setpv(sv,signame); |
a0d0e21e |
1293 | PUSHMARK(sp); |
79072805 |
1294 | PUSHs(sv); |
79072805 |
1295 | PUTBACK; |
a0d0e21e |
1296 | |
1297 | perl_call_sv((SV*)cv, G_DISCARD); |
79072805 |
1298 | |
1299 | SWITCHSTACK(signalstack, oldstack); |
79072805 |
1300 | |
1301 | return; |
1302 | } |