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; | |
748a9306 | 111 | char *junk; |
463ee0b2 | 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 | ||
748a9306 | 133 | junk = 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; | |
748a9306 | 226 | char *t; |
93a17b20 LW |
227 | |
228 | switch (*mg->mg_ptr) { | |
229 | case '1': case '2': case '3': case '4': | |
230 | case '5': case '6': case '7': case '8': case '9': case '&': | |
231 | if (curpm) { | |
232 | paren = atoi(mg->mg_ptr); | |
233 | getparen: | |
234 | if (curpm->op_pmregexp && | |
235 | paren <= curpm->op_pmregexp->nparens && | |
748a9306 LW |
236 | (s = curpm->op_pmregexp->startp[paren]) && |
237 | (t = curpm->op_pmregexp->endp[paren]) ) { | |
238 | i = t - s; | |
93a17b20 LW |
239 | if (i >= 0) |
240 | return i; | |
93a17b20 | 241 | } |
93a17b20 | 242 | } |
748a9306 | 243 | return 0; |
93a17b20 LW |
244 | break; |
245 | case '+': | |
246 | if (curpm) { | |
247 | paren = curpm->op_pmregexp->lastparen; | |
a0d0e21e LW |
248 | if (!paren) |
249 | return 0; | |
93a17b20 LW |
250 | goto getparen; |
251 | } | |
748a9306 | 252 | return 0; |
93a17b20 LW |
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; | |
93a17b20 | 261 | } |
93a17b20 | 262 | } |
748a9306 | 263 | return 0; |
93a17b20 LW |
264 | case '\'': |
265 | if (curpm) { | |
266 | if (curpm->op_pmregexp && | |
267 | (s = curpm->op_pmregexp->endp[0]) ) { | |
268 | return (STRLEN) (curpm->op_pmregexp->subend - s); | |
269 | } | |
93a17b20 | 270 | } |
748a9306 | 271 | return 0; |
93a17b20 LW |
272 | case ',': |
273 | return (STRLEN)ofslen; | |
274 | case '\\': | |
275 | return (STRLEN)orslen; | |
276 | } | |
277 | magic_get(sv,mg); | |
278 | if (!SvPOK(sv) && SvNIOK(sv)) | |
463ee0b2 | 279 | sv_2pv(sv, &na); |
93a17b20 LW |
280 | if (SvPOK(sv)) |
281 | return SvCUR(sv); | |
282 | return 0; | |
283 | } | |
284 | ||
79072805 LW |
285 | int |
286 | magic_get(sv, mg) | |
287 | SV *sv; | |
288 | MAGIC *mg; | |
289 | { | |
290 | register I32 paren; | |
291 | register char *s; | |
292 | register I32 i; | |
748a9306 | 293 | char *t; |
79072805 LW |
294 | |
295 | switch (*mg->mg_ptr) { | |
748a9306 LW |
296 | case '\001': /* ^A */ |
297 | sv_setsv(sv, bodytarget); | |
298 | break; | |
79072805 LW |
299 | case '\004': /* ^D */ |
300 | sv_setiv(sv,(I32)(debug & 32767)); | |
301 | break; | |
302 | case '\006': /* ^F */ | |
303 | sv_setiv(sv,(I32)maxsysfd); | |
304 | break; | |
a0d0e21e LW |
305 | case '\010': /* ^H */ |
306 | sv_setiv(sv,(I32)hints); | |
307 | break; | |
79072805 LW |
308 | case '\t': /* ^I */ |
309 | if (inplace) | |
310 | sv_setpv(sv, inplace); | |
311 | else | |
312 | sv_setsv(sv,&sv_undef); | |
313 | break; | |
314 | case '\020': /* ^P */ | |
315 | sv_setiv(sv,(I32)perldb); | |
316 | break; | |
317 | case '\024': /* ^T */ | |
318 | sv_setiv(sv,(I32)basetime); | |
319 | break; | |
320 | case '\027': /* ^W */ | |
321 | sv_setiv(sv,(I32)dowarn); | |
322 | break; | |
323 | case '1': case '2': case '3': case '4': | |
324 | case '5': case '6': case '7': case '8': case '9': case '&': | |
325 | if (curpm) { | |
326 | paren = atoi(GvENAME(mg->mg_obj)); | |
327 | getparen: | |
328 | if (curpm->op_pmregexp && | |
329 | paren <= curpm->op_pmregexp->nparens && | |
a0d0e21e | 330 | (s = curpm->op_pmregexp->startp[paren]) && |
748a9306 LW |
331 | (t = curpm->op_pmregexp->endp[paren]) ) { |
332 | i = t - s; | |
333 | if (i >= 0) { | |
334 | MAGIC *tmg; | |
79072805 | 335 | sv_setpvn(sv,s,i); |
748a9306 LW |
336 | if (tainting && (tmg = mg_find(sv,'t'))) |
337 | tmg->mg_len = 0; /* guarantee $1 untainted */ | |
338 | break; | |
339 | } | |
79072805 | 340 | } |
79072805 | 341 | } |
748a9306 | 342 | sv_setsv(sv,&sv_undef); |
79072805 LW |
343 | break; |
344 | case '+': | |
345 | if (curpm) { | |
346 | paren = curpm->op_pmregexp->lastparen; | |
a0d0e21e LW |
347 | if (paren) |
348 | goto getparen; | |
79072805 | 349 | } |
748a9306 | 350 | sv_setsv(sv,&sv_undef); |
79072805 LW |
351 | break; |
352 | case '`': | |
353 | if (curpm) { | |
354 | if (curpm->op_pmregexp && | |
355 | (s = curpm->op_pmregexp->subbeg) ) { | |
356 | i = curpm->op_pmregexp->startp[0] - s; | |
748a9306 | 357 | if (i >= 0) { |
79072805 | 358 | sv_setpvn(sv,s,i); |
748a9306 LW |
359 | break; |
360 | } | |
79072805 | 361 | } |
79072805 | 362 | } |
748a9306 | 363 | sv_setsv(sv,&sv_undef); |
79072805 LW |
364 | break; |
365 | case '\'': | |
366 | if (curpm) { | |
367 | if (curpm->op_pmregexp && | |
368 | (s = curpm->op_pmregexp->endp[0]) ) { | |
369 | sv_setpvn(sv,s, curpm->op_pmregexp->subend - s); | |
748a9306 | 370 | break; |
79072805 | 371 | } |
79072805 | 372 | } |
748a9306 | 373 | sv_setsv(sv,&sv_undef); |
79072805 LW |
374 | break; |
375 | case '.': | |
376 | #ifndef lint | |
a0d0e21e | 377 | if (GvIO(last_in_gv)) { |
8990e307 | 378 | sv_setiv(sv,(I32)IoLINES(GvIO(last_in_gv))); |
79072805 LW |
379 | } |
380 | #endif | |
381 | break; | |
382 | case '?': | |
383 | sv_setiv(sv,(I32)statusvalue); | |
384 | break; | |
385 | case '^': | |
a0d0e21e | 386 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 LW |
387 | if (s) |
388 | sv_setpv(sv,s); | |
389 | else { | |
390 | sv_setpv(sv,GvENAME(defoutgv)); | |
391 | sv_catpv(sv,"_TOP"); | |
392 | } | |
393 | break; | |
394 | case '~': | |
a0d0e21e | 395 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 LW |
396 | if (!s) |
397 | s = GvENAME(defoutgv); | |
398 | sv_setpv(sv,s); | |
399 | break; | |
400 | #ifndef lint | |
401 | case '=': | |
a0d0e21e | 402 | sv_setiv(sv,(I32)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 LW |
403 | break; |
404 | case '-': | |
a0d0e21e | 405 | sv_setiv(sv,(I32)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 LW |
406 | break; |
407 | case '%': | |
a0d0e21e | 408 | sv_setiv(sv,(I32)IoPAGE(GvIOp(defoutgv))); |
79072805 LW |
409 | break; |
410 | #endif | |
411 | case ':': | |
412 | break; | |
413 | case '/': | |
414 | break; | |
415 | case '[': | |
a0d0e21e | 416 | sv_setiv(sv,(I32)curcop->cop_arybase); |
79072805 LW |
417 | break; |
418 | case '|': | |
a0d0e21e | 419 | sv_setiv(sv, (IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
420 | break; |
421 | case ',': | |
422 | sv_setpvn(sv,ofs,ofslen); | |
423 | break; | |
424 | case '\\': | |
425 | sv_setpvn(sv,ors,orslen); | |
426 | break; | |
427 | case '#': | |
428 | sv_setpv(sv,ofmt); | |
429 | break; | |
430 | case '!': | |
431 | sv_setnv(sv,(double)errno); | |
2304df62 | 432 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
79072805 LW |
433 | SvNOK_on(sv); /* what a wonderful hack! */ |
434 | break; | |
435 | case '<': | |
436 | sv_setiv(sv,(I32)uid); | |
437 | break; | |
438 | case '>': | |
439 | sv_setiv(sv,(I32)euid); | |
440 | break; | |
441 | case '(': | |
442 | s = buf; | |
443 | (void)sprintf(s,"%d",(int)gid); | |
444 | goto add_groups; | |
445 | case ')': | |
446 | s = buf; | |
447 | (void)sprintf(s,"%d",(int)egid); | |
448 | add_groups: | |
449 | while (*s) s++; | |
450 | #ifdef HAS_GETGROUPS | |
451 | #ifndef NGROUPS | |
452 | #define NGROUPS 32 | |
453 | #endif | |
454 | { | |
a0d0e21e | 455 | Groups_t gary[NGROUPS]; |
79072805 LW |
456 | |
457 | i = getgroups(NGROUPS,gary); | |
458 | while (--i >= 0) { | |
459 | (void)sprintf(s," %ld", (long)gary[i]); | |
460 | while (*s) s++; | |
461 | } | |
462 | } | |
463 | #endif | |
464 | sv_setpv(sv,buf); | |
465 | break; | |
466 | case '*': | |
467 | break; | |
468 | case '0': | |
469 | break; | |
470 | } | |
a0d0e21e | 471 | return 0; |
79072805 LW |
472 | } |
473 | ||
474 | int | |
475 | magic_getuvar(sv, mg) | |
476 | SV *sv; | |
477 | MAGIC *mg; | |
478 | { | |
479 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
480 | ||
481 | if (uf && uf->uf_val) | |
482 | (*uf->uf_val)(uf->uf_index, sv); | |
483 | return 0; | |
484 | } | |
485 | ||
486 | int | |
487 | magic_setenv(sv,mg) | |
488 | SV* sv; | |
489 | MAGIC* mg; | |
490 | { | |
491 | register char *s; | |
a0d0e21e LW |
492 | STRLEN len; |
493 | I32 i; | |
494 | s = SvPV(sv,len); | |
79072805 | 495 | my_setenv(mg->mg_ptr,s); |
a0d0e21e LW |
496 | #ifdef DYNAMIC_ENV_FETCH |
497 | /* We just undefd an environment var. Is a replacement */ | |
498 | /* waiting in the wings? */ | |
499 | if (!len) { | |
500 | SV **envsvp; | |
501 | if (envsvp = hv_fetch(GvHVn(envgv),mg->mg_ptr,mg->mg_len,FALSE)) | |
502 | s = SvPV(*envsvp,len); | |
503 | } | |
504 | #endif | |
79072805 LW |
505 | /* And you'll never guess what the dog had */ |
506 | /* in its mouth... */ | |
463ee0b2 LW |
507 | if (tainting) { |
508 | if (s && strEQ(mg->mg_ptr,"PATH")) { | |
a0d0e21e | 509 | char *strend = s + len; |
463ee0b2 LW |
510 | |
511 | while (s < strend) { | |
512 | s = cpytill(tokenbuf,s,strend,':',&i); | |
513 | s++; | |
514 | if (*tokenbuf != '/' | |
a0d0e21e | 515 | || (Stat(tokenbuf,&statbuf) && (statbuf.st_mode & 2)) ) |
8990e307 | 516 | MgTAINTEDDIR_on(mg); |
463ee0b2 | 517 | } |
79072805 LW |
518 | } |
519 | } | |
79072805 LW |
520 | return 0; |
521 | } | |
522 | ||
523 | int | |
85e6fe83 LW |
524 | magic_clearenv(sv,mg) |
525 | SV* sv; | |
526 | MAGIC* mg; | |
527 | { | |
528 | my_setenv(mg->mg_ptr,Nullch); | |
529 | return 0; | |
530 | } | |
531 | ||
532 | int | |
79072805 LW |
533 | magic_setsig(sv,mg) |
534 | SV* sv; | |
535 | MAGIC* mg; | |
536 | { | |
537 | register char *s; | |
538 | I32 i; | |
748a9306 | 539 | SV** svp; |
a0d0e21e | 540 | |
748a9306 LW |
541 | s = mg->mg_ptr; |
542 | if (*s == '_') { | |
543 | if (strEQ(s,"__DIE__")) | |
544 | svp = &diehook; | |
545 | else if (strEQ(s,"__WARN__")) | |
546 | svp = &warnhook; | |
547 | else if (strEQ(s,"__PARSE__")) | |
548 | svp = &parsehook; | |
549 | else | |
550 | croak("No such hook: %s", s); | |
551 | i = 0; | |
552 | } | |
553 | else { | |
554 | i = whichsig(s); /* ...no, a brick */ | |
555 | if (!i) { | |
556 | if (dowarn || strEQ(s,"ALARM")) | |
557 | warn("No such signal: SIG%s", s); | |
558 | return 0; | |
559 | } | |
560 | } | |
a0d0e21e | 561 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 LW |
562 | if (i) |
563 | (void)signal(i,sighandler); | |
564 | else | |
565 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
566 | return 0; |
567 | } | |
568 | s = SvPV_force(sv,na); | |
748a9306 LW |
569 | if (strEQ(s,"IGNORE")) { |
570 | if (i) | |
571 | (void)signal(i,SIG_IGN); | |
572 | else | |
573 | *svp = 0; | |
574 | } | |
575 | else if (strEQ(s,"DEFAULT") || !*s) { | |
576 | if (i) | |
577 | (void)signal(i,SIG_DFL); | |
578 | else | |
579 | *svp = 0; | |
580 | } | |
79072805 | 581 | else { |
2304df62 AD |
582 | if (!strchr(s,':') && !strchr(s,'\'')) { |
583 | sprintf(tokenbuf, "main::%s",s); | |
79072805 LW |
584 | sv_setpv(sv,tokenbuf); |
585 | } | |
748a9306 LW |
586 | if (i) |
587 | (void)signal(i,sighandler); | |
588 | else | |
589 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
590 | } |
591 | return 0; | |
592 | } | |
593 | ||
594 | int | |
463ee0b2 | 595 | magic_setisa(sv,mg) |
79072805 LW |
596 | SV* sv; |
597 | MAGIC* mg; | |
598 | { | |
463ee0b2 LW |
599 | sub_generation++; |
600 | return 0; | |
601 | } | |
602 | ||
a0d0e21e LW |
603 | #ifdef OVERLOAD |
604 | ||
463ee0b2 | 605 | int |
a0d0e21e | 606 | magic_setamagic(sv,mg) |
463ee0b2 LW |
607 | SV* sv; |
608 | MAGIC* mg; | |
609 | { | |
a0d0e21e LW |
610 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
611 | amagic_generation++; | |
463ee0b2 | 612 | |
a0d0e21e LW |
613 | return 0; |
614 | } | |
615 | #endif /* OVERLOAD */ | |
463ee0b2 | 616 | |
a0d0e21e LW |
617 | static int |
618 | magic_methpack(sv,mg,meth) | |
619 | SV* sv; | |
620 | MAGIC* mg; | |
621 | char *meth; | |
622 | { | |
623 | dSP; | |
463ee0b2 | 624 | |
a0d0e21e LW |
625 | ENTER; |
626 | SAVETMPS; | |
627 | PUSHMARK(sp); | |
628 | EXTEND(sp, 2); | |
629 | PUSHs(mg->mg_obj); | |
463ee0b2 | 630 | if (mg->mg_ptr) |
a0d0e21e LW |
631 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
632 | else if (mg->mg_type == 'p') | |
633 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
634 | PUTBACK; |
635 | ||
a0d0e21e LW |
636 | if (perl_call_method(meth, G_SCALAR)) |
637 | sv_setsv(sv, *stack_sp--); | |
463ee0b2 | 638 | |
a0d0e21e LW |
639 | FREETMPS; |
640 | LEAVE; | |
641 | return 0; | |
642 | } | |
463ee0b2 | 643 | |
a0d0e21e LW |
644 | int |
645 | magic_getpack(sv,mg) | |
646 | SV* sv; | |
647 | MAGIC* mg; | |
648 | { | |
649 | magic_methpack(sv,mg,"FETCH"); | |
650 | if (mg->mg_ptr) | |
651 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
652 | return 0; |
653 | } | |
654 | ||
655 | int | |
656 | magic_setpack(sv,mg) | |
657 | SV* sv; | |
658 | MAGIC* mg; | |
659 | { | |
463ee0b2 | 660 | dSP; |
463ee0b2 | 661 | |
a0d0e21e LW |
662 | PUSHMARK(sp); |
663 | EXTEND(sp, 3); | |
664 | PUSHs(mg->mg_obj); | |
463ee0b2 | 665 | if (mg->mg_ptr) |
a0d0e21e LW |
666 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
667 | else if (mg->mg_type == 'p') | |
668 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
669 | PUSHs(sv); |
670 | PUTBACK; | |
671 | ||
a0d0e21e | 672 | perl_call_method("STORE", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
673 | |
674 | return 0; | |
675 | } | |
676 | ||
677 | int | |
678 | magic_clearpack(sv,mg) | |
679 | SV* sv; | |
680 | MAGIC* mg; | |
681 | { | |
a0d0e21e LW |
682 | return magic_methpack(sv,mg,"DELETE"); |
683 | } | |
463ee0b2 | 684 | |
a0d0e21e LW |
685 | int magic_wipepack(sv,mg) |
686 | SV* sv; | |
687 | MAGIC* mg; | |
688 | { | |
689 | dSP; | |
463ee0b2 | 690 | |
a0d0e21e LW |
691 | PUSHMARK(sp); |
692 | XPUSHs(mg->mg_obj); | |
463ee0b2 | 693 | PUTBACK; |
463ee0b2 | 694 | |
a0d0e21e | 695 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
696 | |
697 | return 0; | |
698 | } | |
699 | ||
700 | int | |
701 | magic_nextpack(sv,mg,key) | |
702 | SV* sv; | |
703 | MAGIC* mg; | |
704 | SV* key; | |
705 | { | |
463ee0b2 | 706 | dSP; |
a0d0e21e | 707 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
708 | |
709 | ENTER; | |
a0d0e21e LW |
710 | SAVETMPS; |
711 | PUSHMARK(sp); | |
712 | EXTEND(sp, 2); | |
713 | PUSHs(mg->mg_obj); | |
463ee0b2 LW |
714 | if (SvOK(key)) |
715 | PUSHs(key); | |
716 | PUTBACK; | |
717 | ||
a0d0e21e LW |
718 | if (perl_call_method(meth, G_SCALAR)) |
719 | sv_setsv(key, *stack_sp--); | |
463ee0b2 | 720 | |
a0d0e21e LW |
721 | FREETMPS; |
722 | LEAVE; | |
79072805 LW |
723 | return 0; |
724 | } | |
725 | ||
726 | int | |
a0d0e21e LW |
727 | magic_existspack(sv,mg) |
728 | SV* sv; | |
729 | MAGIC* mg; | |
730 | { | |
731 | return magic_methpack(sv,mg,"EXISTS"); | |
732 | } | |
733 | ||
734 | int | |
79072805 LW |
735 | magic_setdbline(sv,mg) |
736 | SV* sv; | |
737 | MAGIC* mg; | |
738 | { | |
739 | OP *o; | |
740 | I32 i; | |
741 | GV* gv; | |
742 | SV** svp; | |
743 | ||
744 | gv = DBline; | |
745 | i = SvTRUE(sv); | |
746 | svp = av_fetch(GvAV(gv),atoi(mg->mg_ptr), FALSE); | |
8990e307 | 747 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 748 | o->op_private = i; |
79072805 LW |
749 | else |
750 | warn("Can't break at that line\n"); | |
751 | return 0; | |
752 | } | |
753 | ||
754 | int | |
755 | magic_getarylen(sv,mg) | |
756 | SV* sv; | |
757 | MAGIC* mg; | |
758 | { | |
a0d0e21e | 759 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 LW |
760 | return 0; |
761 | } | |
762 | ||
763 | int | |
764 | magic_setarylen(sv,mg) | |
765 | SV* sv; | |
766 | MAGIC* mg; | |
767 | { | |
a0d0e21e LW |
768 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
769 | return 0; | |
770 | } | |
771 | ||
772 | int | |
773 | magic_getpos(sv,mg) | |
774 | SV* sv; | |
775 | MAGIC* mg; | |
776 | { | |
777 | SV* lsv = LvTARG(sv); | |
778 | ||
779 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
780 | mg = mg_find(lsv, 'g'); | |
781 | if (mg && mg->mg_len >= 0) { | |
782 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); | |
783 | return 0; | |
784 | } | |
785 | } | |
786 | (void)SvOK_off(sv); | |
787 | return 0; | |
788 | } | |
789 | ||
790 | int | |
791 | magic_setpos(sv,mg) | |
792 | SV* sv; | |
793 | MAGIC* mg; | |
794 | { | |
795 | SV* lsv = LvTARG(sv); | |
796 | SSize_t pos; | |
797 | STRLEN len; | |
798 | ||
799 | mg = 0; | |
800 | ||
801 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
802 | mg = mg_find(lsv, 'g'); | |
803 | if (!mg) { | |
804 | if (!SvOK(sv)) | |
805 | return 0; | |
806 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
807 | mg = mg_find(lsv, 'g'); | |
808 | } | |
809 | else if (!SvOK(sv)) { | |
810 | mg->mg_len = -1; | |
811 | return 0; | |
812 | } | |
813 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
814 | ||
815 | pos = SvIV(sv) - curcop->cop_arybase; | |
816 | if (pos < 0) { | |
817 | pos += len; | |
818 | if (pos < 0) | |
819 | pos = 0; | |
820 | } | |
821 | else if (pos > len) | |
822 | pos = len; | |
823 | mg->mg_len = pos; | |
824 | ||
79072805 LW |
825 | return 0; |
826 | } | |
827 | ||
828 | int | |
829 | magic_getglob(sv,mg) | |
830 | SV* sv; | |
831 | MAGIC* mg; | |
832 | { | |
833 | gv_efullname(sv,((GV*)sv));/* a gv value, be nice */ | |
834 | return 0; | |
835 | } | |
836 | ||
837 | int | |
838 | magic_setglob(sv,mg) | |
839 | SV* sv; | |
840 | MAGIC* mg; | |
841 | { | |
842 | register char *s; | |
843 | GV* gv; | |
844 | ||
845 | if (!SvOK(sv)) | |
846 | return 0; | |
463ee0b2 | 847 | s = SvPV(sv, na); |
79072805 LW |
848 | if (*s == '*' && s[1]) |
849 | s++; | |
85e6fe83 | 850 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
851 | if (sv == (SV*)gv) |
852 | return 0; | |
853 | if (GvGP(sv)) | |
854 | gp_free(sv); | |
855 | GvGP(sv) = gp_ref(GvGP(gv)); | |
856 | if (!GvAV(gv)) | |
857 | gv_AVadd(gv); | |
858 | if (!GvHV(gv)) | |
859 | gv_HVadd(gv); | |
a0d0e21e LW |
860 | if (!GvIOp(gv)) |
861 | GvIOp(gv) = newIO(); | |
79072805 LW |
862 | return 0; |
863 | } | |
864 | ||
865 | int | |
866 | magic_setsubstr(sv,mg) | |
867 | SV* sv; | |
868 | MAGIC* mg; | |
869 | { | |
8990e307 LW |
870 | STRLEN len; |
871 | char *tmps = SvPV(sv,len); | |
872 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
873 | return 0; |
874 | } | |
875 | ||
876 | int | |
463ee0b2 LW |
877 | magic_gettaint(sv,mg) |
878 | SV* sv; | |
879 | MAGIC* mg; | |
880 | { | |
748a9306 LW |
881 | if (mg->mg_len & 1) |
882 | tainted = TRUE; | |
883 | else if (mg->mg_len & 2 && mg->mg_obj == sv) /* kludge */ | |
884 | tainted = TRUE; | |
463ee0b2 LW |
885 | return 0; |
886 | } | |
887 | ||
888 | int | |
889 | magic_settaint(sv,mg) | |
890 | SV* sv; | |
891 | MAGIC* mg; | |
892 | { | |
748a9306 LW |
893 | if (localizing) { |
894 | if (localizing == 1) | |
895 | mg->mg_len <<= 1; | |
896 | else | |
897 | mg->mg_len >>= 1; | |
a0d0e21e | 898 | } |
748a9306 LW |
899 | else if (tainted) |
900 | mg->mg_len |= 1; | |
901 | else | |
902 | mg->mg_len &= ~1; | |
463ee0b2 LW |
903 | return 0; |
904 | } | |
905 | ||
906 | int | |
79072805 LW |
907 | magic_setvec(sv,mg) |
908 | SV* sv; | |
909 | MAGIC* mg; | |
910 | { | |
911 | do_vecset(sv); /* XXX slurp this routine */ | |
912 | return 0; | |
913 | } | |
914 | ||
915 | int | |
93a17b20 LW |
916 | magic_setmglob(sv,mg) |
917 | SV* sv; | |
918 | MAGIC* mg; | |
919 | { | |
a0d0e21e | 920 | mg->mg_len = -1; |
93a17b20 LW |
921 | return 0; |
922 | } | |
923 | ||
924 | int | |
79072805 LW |
925 | magic_setbm(sv,mg) |
926 | SV* sv; | |
927 | MAGIC* mg; | |
928 | { | |
463ee0b2 | 929 | sv_unmagic(sv, 'B'); |
79072805 LW |
930 | SvVALID_off(sv); |
931 | return 0; | |
932 | } | |
933 | ||
934 | int | |
935 | magic_setuvar(sv,mg) | |
936 | SV* sv; | |
937 | MAGIC* mg; | |
938 | { | |
939 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
940 | ||
941 | if (uf && uf->uf_set) | |
942 | (*uf->uf_set)(uf->uf_index, sv); | |
943 | return 0; | |
944 | } | |
945 | ||
946 | int | |
947 | magic_set(sv,mg) | |
948 | SV* sv; | |
949 | MAGIC* mg; | |
950 | { | |
951 | register char *s; | |
952 | I32 i; | |
8990e307 | 953 | STRLEN len; |
79072805 | 954 | switch (*mg->mg_ptr) { |
748a9306 LW |
955 | case '\001': /* ^A */ |
956 | sv_setsv(bodytarget, sv); | |
957 | break; | |
79072805 | 958 | case '\004': /* ^D */ |
8990e307 | 959 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
960 | DEBUG_x(dump_all()); |
961 | break; | |
962 | case '\006': /* ^F */ | |
463ee0b2 | 963 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 964 | break; |
a0d0e21e LW |
965 | case '\010': /* ^H */ |
966 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
967 | break; | |
79072805 LW |
968 | case '\t': /* ^I */ |
969 | if (inplace) | |
970 | Safefree(inplace); | |
971 | if (SvOK(sv)) | |
a0d0e21e | 972 | inplace = savepv(SvPV(sv,na)); |
79072805 LW |
973 | else |
974 | inplace = Nullch; | |
975 | break; | |
976 | case '\020': /* ^P */ | |
463ee0b2 | 977 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
978 | if (i != perldb) { |
979 | if (perldb) | |
980 | oldlastpm = curpm; | |
981 | else | |
982 | curpm = oldlastpm; | |
983 | } | |
984 | perldb = i; | |
985 | break; | |
986 | case '\024': /* ^T */ | |
85e6fe83 | 987 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
988 | break; |
989 | case '\027': /* ^W */ | |
463ee0b2 | 990 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
991 | break; |
992 | case '.': | |
748a9306 LW |
993 | if (localizing) { |
994 | if (localizing == 1) | |
995 | save_sptr((SV**)&last_in_gv); | |
996 | } | |
2304df62 | 997 | else if (SvOK(sv)) |
a0d0e21e | 998 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 LW |
999 | break; |
1000 | case '^': | |
a0d0e21e LW |
1001 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1002 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1003 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1004 | break; |
1005 | case '~': | |
a0d0e21e LW |
1006 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1007 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1008 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1009 | break; |
1010 | case '=': | |
a0d0e21e | 1011 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1012 | break; |
1013 | case '-': | |
a0d0e21e LW |
1014 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1015 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) | |
1016 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; | |
79072805 LW |
1017 | break; |
1018 | case '%': | |
a0d0e21e | 1019 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1020 | break; |
1021 | case '|': | |
a0d0e21e | 1022 | IoFLAGS(GvIOp(defoutgv)) &= ~IOf_FLUSH; |
463ee0b2 | 1023 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) != 0) { |
a0d0e21e | 1024 | IoFLAGS(GvIOp(defoutgv)) |= IOf_FLUSH; |
79072805 LW |
1025 | } |
1026 | break; | |
1027 | case '*': | |
463ee0b2 | 1028 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1029 | multiline = (i != 0); |
1030 | break; | |
1031 | case '/': | |
a0d0e21e LW |
1032 | if (SvOK(sv)) { |
1033 | nrs = rs = SvPV_force(sv,rslen); | |
8990e307 | 1034 | nrslen = rslen; |
79072805 | 1035 | if (rspara = !rslen) { |
93a17b20 LW |
1036 | nrs = rs = "\n\n"; |
1037 | nrslen = rslen = 2; | |
79072805 | 1038 | } |
93a17b20 | 1039 | nrschar = rschar = rs[rslen - 1]; |
79072805 LW |
1040 | } |
1041 | else { | |
93a17b20 LW |
1042 | nrschar = rschar = 0777; /* fake a non-existent char */ |
1043 | nrslen = rslen = 1; | |
79072805 LW |
1044 | } |
1045 | break; | |
1046 | case '\\': | |
1047 | if (ors) | |
1048 | Safefree(ors); | |
a0d0e21e | 1049 | ors = savepv(SvPV(sv,orslen)); |
79072805 LW |
1050 | break; |
1051 | case ',': | |
1052 | if (ofs) | |
1053 | Safefree(ofs); | |
a0d0e21e | 1054 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 LW |
1055 | break; |
1056 | case '#': | |
1057 | if (ofmt) | |
1058 | Safefree(ofmt); | |
a0d0e21e | 1059 | ofmt = savepv(SvPV(sv,na)); |
79072805 LW |
1060 | break; |
1061 | case '[': | |
a0d0e21e | 1062 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1063 | break; |
1064 | case '?': | |
748a9306 | 1065 | statusvalue = FIXSTATUS(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1066 | break; |
1067 | case '!': | |
748a9306 | 1068 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv),SS$_ABORT); /* will anyone ever use this? */ |
79072805 LW |
1069 | break; |
1070 | case '<': | |
463ee0b2 | 1071 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1072 | if (delaymagic) { |
1073 | delaymagic |= DM_RUID; | |
1074 | break; /* don't do magic till later */ | |
1075 | } | |
1076 | #ifdef HAS_SETRUID | |
85e6fe83 | 1077 | (void)setruid((Uid_t)uid); |
79072805 LW |
1078 | #else |
1079 | #ifdef HAS_SETREUID | |
85e6fe83 | 1080 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 | 1081 | #else |
85e6fe83 LW |
1082 | #ifdef HAS_SETRESUID |
1083 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); | |
79072805 LW |
1084 | #else |
1085 | if (uid == euid) /* special case $< = $> */ | |
1086 | (void)setuid(uid); | |
a0d0e21e LW |
1087 | else { |
1088 | uid = (I32)getuid(); | |
463ee0b2 | 1089 | croak("setruid() not implemented"); |
a0d0e21e | 1090 | } |
79072805 LW |
1091 | #endif |
1092 | #endif | |
85e6fe83 | 1093 | #endif |
748a9306 | 1094 | uid = (I32)getuid(); |
463ee0b2 | 1095 | tainting |= (euid != uid || egid != gid); |
79072805 LW |
1096 | break; |
1097 | case '>': | |
463ee0b2 | 1098 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1099 | if (delaymagic) { |
1100 | delaymagic |= DM_EUID; | |
1101 | break; /* don't do magic till later */ | |
1102 | } | |
1103 | #ifdef HAS_SETEUID | |
85e6fe83 | 1104 | (void)seteuid((Uid_t)euid); |
79072805 LW |
1105 | #else |
1106 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1107 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1108 | #else | |
1109 | #ifdef HAS_SETRESUID | |
1110 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); | |
79072805 LW |
1111 | #else |
1112 | if (euid == uid) /* special case $> = $< */ | |
1113 | setuid(euid); | |
a0d0e21e LW |
1114 | else { |
1115 | euid = (I32)geteuid(); | |
463ee0b2 | 1116 | croak("seteuid() not implemented"); |
a0d0e21e | 1117 | } |
79072805 LW |
1118 | #endif |
1119 | #endif | |
85e6fe83 | 1120 | #endif |
79072805 | 1121 | euid = (I32)geteuid(); |
463ee0b2 | 1122 | tainting |= (euid != uid || egid != gid); |
79072805 LW |
1123 | break; |
1124 | case '(': | |
463ee0b2 | 1125 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1126 | if (delaymagic) { |
1127 | delaymagic |= DM_RGID; | |
1128 | break; /* don't do magic till later */ | |
1129 | } | |
1130 | #ifdef HAS_SETRGID | |
85e6fe83 | 1131 | (void)setrgid((Gid_t)gid); |
79072805 LW |
1132 | #else |
1133 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1134 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1135 | #else | |
1136 | #ifdef HAS_SETRESGID | |
1137 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); | |
79072805 LW |
1138 | #else |
1139 | if (gid == egid) /* special case $( = $) */ | |
1140 | (void)setgid(gid); | |
748a9306 LW |
1141 | else { |
1142 | gid = (I32)getgid(); | |
463ee0b2 | 1143 | croak("setrgid() not implemented"); |
748a9306 | 1144 | } |
79072805 LW |
1145 | #endif |
1146 | #endif | |
85e6fe83 | 1147 | #endif |
79072805 | 1148 | gid = (I32)getgid(); |
463ee0b2 | 1149 | tainting |= (euid != uid || egid != gid); |
79072805 LW |
1150 | break; |
1151 | case ')': | |
463ee0b2 | 1152 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1153 | if (delaymagic) { |
1154 | delaymagic |= DM_EGID; | |
1155 | break; /* don't do magic till later */ | |
1156 | } | |
1157 | #ifdef HAS_SETEGID | |
85e6fe83 | 1158 | (void)setegid((Gid_t)egid); |
79072805 LW |
1159 | #else |
1160 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1161 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1162 | #else | |
1163 | #ifdef HAS_SETRESGID | |
1164 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); | |
79072805 LW |
1165 | #else |
1166 | if (egid == gid) /* special case $) = $( */ | |
1167 | (void)setgid(egid); | |
748a9306 LW |
1168 | else { |
1169 | egid = (I32)getegid(); | |
463ee0b2 | 1170 | croak("setegid() not implemented"); |
748a9306 | 1171 | } |
79072805 LW |
1172 | #endif |
1173 | #endif | |
85e6fe83 | 1174 | #endif |
79072805 | 1175 | egid = (I32)getegid(); |
463ee0b2 | 1176 | tainting |= (euid != uid || egid != gid); |
79072805 LW |
1177 | break; |
1178 | case ':': | |
a0d0e21e | 1179 | chopset = SvPV_force(sv,na); |
79072805 LW |
1180 | break; |
1181 | case '0': | |
1182 | if (!origalen) { | |
1183 | s = origargv[0]; | |
1184 | s += strlen(s); | |
1185 | /* See if all the arguments are contiguous in memory */ | |
1186 | for (i = 1; i < origargc; i++) { | |
1187 | if (origargv[i] == s + 1) | |
1188 | s += strlen(++s); /* this one is ok too */ | |
1189 | } | |
1190 | if (origenviron[0] == s + 1) { /* can grab env area too? */ | |
1191 | my_setenv("NoNeSuCh", Nullch); | |
1192 | /* force copy of environment */ | |
1193 | for (i = 0; origenviron[i]; i++) | |
1194 | if (origenviron[i] == s + 1) | |
1195 | s += strlen(++s); | |
1196 | } | |
1197 | origalen = s - origargv[0]; | |
1198 | } | |
a0d0e21e | 1199 | s = SvPV_force(sv,len); |
8990e307 | 1200 | i = len; |
79072805 LW |
1201 | if (i >= origalen) { |
1202 | i = origalen; | |
1203 | SvCUR_set(sv, i); | |
1204 | *SvEND(sv) = '\0'; | |
1205 | Copy(s, origargv[0], i, char); | |
1206 | } | |
1207 | else { | |
1208 | Copy(s, origargv[0], i, char); | |
1209 | s = origargv[0]+i; | |
1210 | *s++ = '\0'; | |
1211 | while (++i < origalen) | |
8990e307 LW |
1212 | *s++ = ' '; |
1213 | s = origargv[0]+i; | |
ed6116ce | 1214 | for (i = 1; i < origargc; i++) |
8990e307 | 1215 | origargv[i] = Nullch; |
79072805 LW |
1216 | } |
1217 | break; | |
1218 | } | |
1219 | return 0; | |
1220 | } | |
1221 | ||
1222 | I32 | |
1223 | whichsig(sig) | |
1224 | char *sig; | |
1225 | { | |
1226 | register char **sigv; | |
1227 | ||
1228 | for (sigv = sig_name+1; *sigv; sigv++) | |
1229 | if (strEQ(sig,*sigv)) | |
1230 | return sigv - sig_name; | |
1231 | #ifdef SIGCLD | |
1232 | if (strEQ(sig,"CHLD")) | |
1233 | return SIGCLD; | |
1234 | #endif | |
1235 | #ifdef SIGCHLD | |
1236 | if (strEQ(sig,"CLD")) | |
1237 | return SIGCHLD; | |
1238 | #endif | |
1239 | return 0; | |
1240 | } | |
1241 | ||
ecfc5424 | 1242 | Signal_t |
79072805 | 1243 | sighandler(sig) |
a0d0e21e | 1244 | int sig; |
79072805 LW |
1245 | { |
1246 | dSP; | |
1247 | GV *gv; | |
a0d0e21e | 1248 | HV *st; |
79072805 LW |
1249 | SV *sv; |
1250 | CV *cv; | |
79072805 | 1251 | AV *oldstack; |
79072805 LW |
1252 | |
1253 | #ifdef OS2 /* or anybody else who requires SIG_ACK */ | |
1254 | signal(sig, SIG_ACK); | |
1255 | #endif | |
1256 | ||
a0d0e21e LW |
1257 | cv = sv_2cv(*hv_fetch(GvHVn(siggv),sig_name[sig],strlen(sig_name[sig]), |
1258 | TRUE), | |
1259 | &st, &gv, TRUE); | |
1260 | if (!cv || !CvROOT(cv) && | |
1261 | *sig_name[sig] == 'C' && instr(sig_name[sig],"LD")) { | |
1262 | ||
79072805 | 1263 | if (sig_name[sig][1] == 'H') |
a0d0e21e LW |
1264 | cv = sv_2cv(*hv_fetch(GvHVn(siggv),"CLD",3,TRUE), |
1265 | &st, &gv, TRUE); | |
79072805 | 1266 | else |
a0d0e21e LW |
1267 | cv = sv_2cv(*hv_fetch(GvHVn(siggv),"CHLD",4,TRUE), |
1268 | &st, &gv, TRUE); | |
1269 | /* gag */ | |
79072805 | 1270 | } |
a0d0e21e | 1271 | if (!cv || !CvROOT(cv)) { |
79072805 LW |
1272 | if (dowarn) |
1273 | warn("SIG%s handler \"%s\" not defined.\n", | |
1274 | sig_name[sig], GvENAME(gv) ); | |
1275 | return; | |
1276 | } | |
1277 | ||
1278 | oldstack = stack; | |
a0d0e21e LW |
1279 | if (stack != signalstack) |
1280 | AvFILL(signalstack) = 0; | |
79072805 LW |
1281 | SWITCHSTACK(stack, signalstack); |
1282 | ||
8990e307 | 1283 | sv = sv_newmortal(); |
79072805 | 1284 | sv_setpv(sv,sig_name[sig]); |
a0d0e21e | 1285 | PUSHMARK(sp); |
79072805 | 1286 | PUSHs(sv); |
79072805 | 1287 | PUTBACK; |
a0d0e21e LW |
1288 | |
1289 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 LW |
1290 | |
1291 | SWITCHSTACK(signalstack, oldstack); | |
79072805 LW |
1292 | |
1293 | return; | |
1294 | } |