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 | ||
8e07c86e | 24 | |
8990e307 LW |
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 LW |
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 LW |
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 LW |
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 LW |
59 | if (mg->mg_flags & MGf_GSKIP) |
60 | savemagic = 0; | |
61 | } | |
79072805 | 62 | } |
463ee0b2 | 63 | |
a0d0e21e LW |
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 LW |
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 LW |
81 | |
82 | SvMAGICAL_off(sv); | |
4633a7c4 | 83 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 LW |
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 LW |
88 | if (mg->mg_flags & MGf_GSKIP) { |
89 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
90 | savemagic = 0; | |
91 | } | |
79072805 LW |
92 | if (vtbl && vtbl->svt_set) |
93 | (*vtbl->svt_set)(sv, mg); | |
94 | } | |
463ee0b2 LW |
95 | |
96 | if (SvMAGIC(sv)) { | |
a0d0e21e LW |
97 | if (savemagic) |
98 | SvFLAGS(sv) |= savemagic; | |
99 | else | |
100 | mg_magical(sv); | |
8990e307 LW |
101 | if (SvGMAGICAL(sv)) |
102 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
463ee0b2 LW |
103 | } |
104 | ||
79072805 LW |
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 LW |
116 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
117 | MGVTBL* vtbl = mg->mg_virtual; | |
85e6fe83 LW |
118 | if (vtbl && vtbl->svt_len) { |
119 | U32 savemagic = SvMAGICAL(sv); | |
463ee0b2 | 120 | |
85e6fe83 LW |
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 LW |
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 LW |
137 | } |
138 | ||
139 | int | |
140 | mg_clear(sv) | |
141 | SV* sv; | |
142 | { | |
143 | MAGIC* mg; | |
8990e307 | 144 | U32 savemagic = SvMAGICAL(sv); |
463ee0b2 LW |
145 | |
146 | SvMAGICAL_off(sv); | |
8990e307 | 147 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 | 148 | |
79072805 LW |
149 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
150 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
151 | /* omit GSKIP -- never set here */ |
152 | ||
79072805 LW |
153 | if (vtbl && vtbl->svt_clear) |
154 | (*vtbl->svt_clear)(sv, mg); | |
155 | } | |
463ee0b2 | 156 | |
8990e307 LW |
157 | SvFLAGS(sv) |= savemagic; |
158 | if (SvGMAGICAL(sv)) | |
159 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
463ee0b2 | 160 | |
79072805 LW |
161 | return 0; |
162 | } | |
163 | ||
93a17b20 LW |
164 | MAGIC* |
165 | mg_find(sv, type) | |
166 | SV* sv; | |
a0d0e21e | 167 | int type; |
93a17b20 LW |
168 | { |
169 | MAGIC* mg; | |
93a17b20 LW |
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 LW |
180 | SV* nsv; |
181 | char *key; | |
182 | STRLEN klen; | |
79072805 | 183 | { |
463ee0b2 | 184 | int count = 0; |
79072805 | 185 | MAGIC* mg; |
463ee0b2 LW |
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 LW |
193 | } |
194 | ||
195 | int | |
463ee0b2 | 196 | mg_free(sv) |
79072805 LW |
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 LW |
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 LW |
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 LW |
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 LW |
238 | (s = curpm->op_pmregexp->startp[paren]) && |
239 | (t = curpm->op_pmregexp->endp[paren]) ) { | |
240 | i = t - s; | |
93a17b20 LW |
241 | if (i >= 0) |
242 | return i; | |
93a17b20 | 243 | } |
93a17b20 | 244 | } |
748a9306 | 245 | return 0; |
93a17b20 LW |
246 | break; |
247 | case '+': | |
248 | if (curpm) { | |
249 | paren = curpm->op_pmregexp->lastparen; | |
a0d0e21e LW |
250 | if (!paren) |
251 | return 0; | |
93a17b20 LW |
252 | goto getparen; |
253 | } | |
748a9306 | 254 | return 0; |
93a17b20 LW |
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 LW |
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 LW |
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 LW |
282 | if (SvPOK(sv)) |
283 | return SvCUR(sv); | |
284 | return 0; | |
285 | } | |
286 | ||
79072805 LW |
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 LW |
296 | |
297 | switch (*mg->mg_ptr) { | |
748a9306 LW |
298 | case '\001': /* ^A */ |
299 | sv_setsv(sv, bodytarget); | |
300 | break; | |
79072805 LW |
301 | case '\004': /* ^D */ |
302 | sv_setiv(sv,(I32)(debug & 32767)); | |
303 | break; | |
304 | case '\006': /* ^F */ | |
305 | sv_setiv(sv,(I32)maxsysfd); | |
306 | break; | |
a0d0e21e LW |
307 | case '\010': /* ^H */ |
308 | sv_setiv(sv,(I32)hints); | |
309 | break; | |
79072805 LW |
310 | case '\t': /* ^I */ |
311 | if (inplace) | |
312 | sv_setpv(sv, inplace); | |
313 | else | |
314 | sv_setsv(sv,&sv_undef); | |
315 | break; | |
316 | case '\020': /* ^P */ | |
317 | sv_setiv(sv,(I32)perldb); | |
318 | break; | |
319 | case '\024': /* ^T */ | |
320 | sv_setiv(sv,(I32)basetime); | |
321 | break; | |
322 | case '\027': /* ^W */ | |
323 | sv_setiv(sv,(I32)dowarn); | |
324 | break; | |
325 | case '1': case '2': case '3': case '4': | |
326 | case '5': case '6': case '7': case '8': case '9': case '&': | |
327 | if (curpm) { | |
328 | paren = atoi(GvENAME(mg->mg_obj)); | |
329 | getparen: | |
330 | if (curpm->op_pmregexp && | |
331 | paren <= curpm->op_pmregexp->nparens && | |
a0d0e21e | 332 | (s = curpm->op_pmregexp->startp[paren]) && |
748a9306 LW |
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 LW |
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 LW |
345 | break; |
346 | case '+': | |
347 | if (curpm) { | |
348 | paren = curpm->op_pmregexp->lastparen; | |
a0d0e21e LW |
349 | if (paren) |
350 | goto getparen; | |
79072805 | 351 | } |
748a9306 | 352 | sv_setsv(sv,&sv_undef); |
79072805 LW |
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 LW |
361 | break; |
362 | } | |
79072805 | 363 | } |
79072805 | 364 | } |
748a9306 | 365 | sv_setsv(sv,&sv_undef); |
79072805 LW |
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 LW |
376 | break; |
377 | case '.': | |
378 | #ifndef lint | |
a0d0e21e | 379 | if (GvIO(last_in_gv)) { |
8990e307 | 380 | sv_setiv(sv,(I32)IoLINES(GvIO(last_in_gv))); |
79072805 LW |
381 | } |
382 | #endif | |
383 | break; | |
384 | case '?': | |
385 | sv_setiv(sv,(I32)statusvalue); | |
386 | break; | |
387 | case '^': | |
a0d0e21e | 388 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 LW |
389 | if (s) |
390 | sv_setpv(sv,s); | |
391 | else { | |
392 | sv_setpv(sv,GvENAME(defoutgv)); | |
393 | sv_catpv(sv,"_TOP"); | |
394 | } | |
395 | break; | |
396 | case '~': | |
a0d0e21e | 397 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 LW |
398 | if (!s) |
399 | s = GvENAME(defoutgv); | |
400 | sv_setpv(sv,s); | |
401 | break; | |
402 | #ifndef lint | |
403 | case '=': | |
a0d0e21e | 404 | sv_setiv(sv,(I32)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 LW |
405 | break; |
406 | case '-': | |
a0d0e21e | 407 | sv_setiv(sv,(I32)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 LW |
408 | break; |
409 | case '%': | |
a0d0e21e | 410 | sv_setiv(sv,(I32)IoPAGE(GvIOp(defoutgv))); |
79072805 LW |
411 | break; |
412 | #endif | |
413 | case ':': | |
414 | break; | |
415 | case '/': | |
416 | break; | |
417 | case '[': | |
a0d0e21e | 418 | sv_setiv(sv,(I32)curcop->cop_arybase); |
79072805 LW |
419 | break; |
420 | case '|': | |
a0d0e21e | 421 | sv_setiv(sv, (IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
422 | break; |
423 | case ',': | |
424 | sv_setpvn(sv,ofs,ofslen); | |
425 | break; | |
426 | case '\\': | |
427 | sv_setpvn(sv,ors,orslen); | |
428 | break; | |
429 | case '#': | |
430 | sv_setpv(sv,ofmt); | |
431 | break; | |
432 | case '!': | |
433 | sv_setnv(sv,(double)errno); | |
2304df62 | 434 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
79072805 LW |
435 | SvNOK_on(sv); /* what a wonderful hack! */ |
436 | break; | |
437 | case '<': | |
438 | sv_setiv(sv,(I32)uid); | |
439 | break; | |
440 | case '>': | |
441 | sv_setiv(sv,(I32)euid); | |
442 | break; | |
443 | case '(': | |
444 | s = buf; | |
445 | (void)sprintf(s,"%d",(int)gid); | |
446 | goto add_groups; | |
447 | case ')': | |
448 | s = buf; | |
449 | (void)sprintf(s,"%d",(int)egid); | |
450 | add_groups: | |
451 | while (*s) s++; | |
452 | #ifdef HAS_GETGROUPS | |
453 | #ifndef NGROUPS | |
454 | #define NGROUPS 32 | |
455 | #endif | |
456 | { | |
a0d0e21e | 457 | Groups_t gary[NGROUPS]; |
79072805 LW |
458 | |
459 | i = getgroups(NGROUPS,gary); | |
460 | while (--i >= 0) { | |
461 | (void)sprintf(s," %ld", (long)gary[i]); | |
462 | while (*s) s++; | |
463 | } | |
464 | } | |
465 | #endif | |
466 | sv_setpv(sv,buf); | |
467 | break; | |
468 | case '*': | |
469 | break; | |
470 | case '0': | |
471 | break; | |
472 | } | |
a0d0e21e | 473 | return 0; |
79072805 LW |
474 | } |
475 | ||
476 | int | |
477 | magic_getuvar(sv, mg) | |
478 | SV *sv; | |
479 | MAGIC *mg; | |
480 | { | |
481 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
482 | ||
483 | if (uf && uf->uf_val) | |
484 | (*uf->uf_val)(uf->uf_index, sv); | |
485 | return 0; | |
486 | } | |
487 | ||
488 | int | |
489 | magic_setenv(sv,mg) | |
490 | SV* sv; | |
491 | MAGIC* mg; | |
492 | { | |
493 | register char *s; | |
a0d0e21e LW |
494 | STRLEN len; |
495 | I32 i; | |
496 | s = SvPV(sv,len); | |
79072805 | 497 | my_setenv(mg->mg_ptr,s); |
a0d0e21e LW |
498 | #ifdef DYNAMIC_ENV_FETCH |
499 | /* We just undefd an environment var. Is a replacement */ | |
500 | /* waiting in the wings? */ | |
501 | if (!len) { | |
502 | SV **envsvp; | |
503 | if (envsvp = hv_fetch(GvHVn(envgv),mg->mg_ptr,mg->mg_len,FALSE)) | |
504 | s = SvPV(*envsvp,len); | |
505 | } | |
506 | #endif | |
79072805 LW |
507 | /* And you'll never guess what the dog had */ |
508 | /* in its mouth... */ | |
463ee0b2 LW |
509 | if (tainting) { |
510 | if (s && strEQ(mg->mg_ptr,"PATH")) { | |
a0d0e21e | 511 | char *strend = s + len; |
463ee0b2 LW |
512 | |
513 | while (s < strend) { | |
514 | s = cpytill(tokenbuf,s,strend,':',&i); | |
515 | s++; | |
516 | if (*tokenbuf != '/' | |
a0d0e21e | 517 | || (Stat(tokenbuf,&statbuf) && (statbuf.st_mode & 2)) ) |
8990e307 | 518 | MgTAINTEDDIR_on(mg); |
463ee0b2 | 519 | } |
79072805 LW |
520 | } |
521 | } | |
79072805 LW |
522 | return 0; |
523 | } | |
524 | ||
525 | int | |
85e6fe83 LW |
526 | magic_clearenv(sv,mg) |
527 | SV* sv; | |
528 | MAGIC* mg; | |
529 | { | |
530 | my_setenv(mg->mg_ptr,Nullch); | |
531 | return 0; | |
532 | } | |
533 | ||
534 | int | |
79072805 LW |
535 | magic_setsig(sv,mg) |
536 | SV* sv; | |
537 | MAGIC* mg; | |
538 | { | |
539 | register char *s; | |
540 | I32 i; | |
748a9306 | 541 | SV** svp; |
a0d0e21e | 542 | |
748a9306 LW |
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 LW |
554 | if (*svp) { |
555 | SvREFCNT_dec(*svp); | |
556 | *svp = 0; | |
557 | } | |
748a9306 LW |
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 LW |
568 | if (i) |
569 | (void)signal(i,sighandler); | |
570 | else | |
571 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
572 | return 0; |
573 | } | |
574 | s = SvPV_force(sv,na); | |
748a9306 LW |
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 AD |
588 | if (!strchr(s,':') && !strchr(s,'\'')) { |
589 | sprintf(tokenbuf, "main::%s",s); | |
79072805 LW |
590 | sv_setpv(sv,tokenbuf); |
591 | } | |
748a9306 LW |
592 | if (i) |
593 | (void)signal(i,sighandler); | |
594 | else | |
595 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
596 | } |
597 | return 0; | |
598 | } | |
599 | ||
600 | int | |
463ee0b2 | 601 | magic_setisa(sv,mg) |
79072805 LW |
602 | SV* sv; |
603 | MAGIC* mg; | |
604 | { | |
463ee0b2 LW |
605 | sub_generation++; |
606 | return 0; | |
607 | } | |
608 | ||
a0d0e21e LW |
609 | #ifdef OVERLOAD |
610 | ||
463ee0b2 | 611 | int |
a0d0e21e | 612 | magic_setamagic(sv,mg) |
463ee0b2 LW |
613 | SV* sv; |
614 | MAGIC* mg; | |
615 | { | |
a0d0e21e LW |
616 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
617 | amagic_generation++; | |
463ee0b2 | 618 | |
a0d0e21e LW |
619 | return 0; |
620 | } | |
621 | #endif /* OVERLOAD */ | |
463ee0b2 | 622 | |
a0d0e21e LW |
623 | static int |
624 | magic_methpack(sv,mg,meth) | |
625 | SV* sv; | |
626 | MAGIC* mg; | |
627 | char *meth; | |
628 | { | |
629 | dSP; | |
463ee0b2 | 630 | |
a0d0e21e LW |
631 | ENTER; |
632 | SAVETMPS; | |
633 | PUSHMARK(sp); | |
634 | EXTEND(sp, 2); | |
635 | PUSHs(mg->mg_obj); | |
463ee0b2 | 636 | if (mg->mg_ptr) |
a0d0e21e LW |
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 LW |
640 | PUTBACK; |
641 | ||
a0d0e21e LW |
642 | if (perl_call_method(meth, G_SCALAR)) |
643 | sv_setsv(sv, *stack_sp--); | |
463ee0b2 | 644 | |
a0d0e21e LW |
645 | FREETMPS; |
646 | LEAVE; | |
647 | return 0; | |
648 | } | |
463ee0b2 | 649 | |
a0d0e21e LW |
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 LW |
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 LW |
668 | PUSHMARK(sp); |
669 | EXTEND(sp, 3); | |
670 | PUSHs(mg->mg_obj); | |
463ee0b2 | 671 | if (mg->mg_ptr) |
a0d0e21e LW |
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 LW |
675 | PUSHs(sv); |
676 | PUTBACK; | |
677 | ||
a0d0e21e | 678 | perl_call_method("STORE", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
679 | |
680 | return 0; | |
681 | } | |
682 | ||
683 | int | |
684 | magic_clearpack(sv,mg) | |
685 | SV* sv; | |
686 | MAGIC* mg; | |
687 | { | |
a0d0e21e LW |
688 | return magic_methpack(sv,mg,"DELETE"); |
689 | } | |
463ee0b2 | 690 | |
a0d0e21e LW |
691 | int magic_wipepack(sv,mg) |
692 | SV* sv; | |
693 | MAGIC* mg; | |
694 | { | |
695 | dSP; | |
463ee0b2 | 696 | |
a0d0e21e LW |
697 | PUSHMARK(sp); |
698 | XPUSHs(mg->mg_obj); | |
463ee0b2 | 699 | PUTBACK; |
463ee0b2 | 700 | |
a0d0e21e | 701 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
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 LW |
714 | |
715 | ENTER; | |
a0d0e21e LW |
716 | SAVETMPS; |
717 | PUSHMARK(sp); | |
718 | EXTEND(sp, 2); | |
719 | PUSHs(mg->mg_obj); | |
463ee0b2 LW |
720 | if (SvOK(key)) |
721 | PUSHs(key); | |
722 | PUTBACK; | |
723 | ||
a0d0e21e LW |
724 | if (perl_call_method(meth, G_SCALAR)) |
725 | sv_setsv(key, *stack_sp--); | |
463ee0b2 | 726 | |
a0d0e21e LW |
727 | FREETMPS; |
728 | LEAVE; | |
79072805 LW |
729 | return 0; |
730 | } | |
731 | ||
732 | int | |
a0d0e21e LW |
733 | magic_existspack(sv,mg) |
734 | SV* sv; | |
735 | MAGIC* mg; | |
736 | { | |
737 | return magic_methpack(sv,mg,"EXISTS"); | |
738 | } | |
739 | ||
740 | int | |
79072805 LW |
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 LW |
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 LW |
766 | return 0; |
767 | } | |
768 | ||
769 | int | |
770 | magic_setarylen(sv,mg) | |
771 | SV* sv; | |
772 | MAGIC* mg; | |
773 | { | |
a0d0e21e LW |
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 LW |
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 LW |
854 | if (*s == '*' && s[1]) |
855 | s++; | |
85e6fe83 | 856 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
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 LW |
866 | if (!GvIOp(gv)) |
867 | GvIOp(gv) = newIO(); | |
79072805 LW |
868 | return 0; |
869 | } | |
870 | ||
871 | int | |
872 | magic_setsubstr(sv,mg) | |
873 | SV* sv; | |
874 | MAGIC* mg; | |
875 | { | |
8990e307 LW |
876 | STRLEN len; |
877 | char *tmps = SvPV(sv,len); | |
878 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
879 | return 0; |
880 | } | |
881 | ||
882 | int | |
463ee0b2 LW |
883 | magic_gettaint(sv,mg) |
884 | SV* sv; | |
885 | MAGIC* mg; | |
886 | { | |
748a9306 LW |
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 LW |
891 | return 0; |
892 | } | |
893 | ||
894 | int | |
895 | magic_settaint(sv,mg) | |
896 | SV* sv; | |
897 | MAGIC* mg; | |
898 | { | |
748a9306 LW |
899 | if (localizing) { |
900 | if (localizing == 1) | |
901 | mg->mg_len <<= 1; | |
902 | else | |
903 | mg->mg_len >>= 1; | |
a0d0e21e | 904 | } |
748a9306 LW |
905 | else if (tainted) |
906 | mg->mg_len |= 1; | |
907 | else | |
908 | mg->mg_len &= ~1; | |
463ee0b2 LW |
909 | return 0; |
910 | } | |
911 | ||
912 | int | |
79072805 LW |
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 LW |
922 | magic_setmglob(sv,mg) |
923 | SV* sv; | |
924 | MAGIC* mg; | |
925 | { | |
a0d0e21e | 926 | mg->mg_len = -1; |
93a17b20 LW |
927 | return 0; |
928 | } | |
929 | ||
930 | int | |
79072805 LW |
931 | magic_setbm(sv,mg) |
932 | SV* sv; | |
933 | MAGIC* mg; | |
934 | { | |
463ee0b2 | 935 | sv_unmagic(sv, 'B'); |
79072805 LW |
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 LW |
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 LW |
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 LW |
971 | case '\010': /* ^H */ |
972 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
973 | break; | |
79072805 LW |
974 | case '\t': /* ^I */ |
975 | if (inplace) | |
976 | Safefree(inplace); | |
977 | if (SvOK(sv)) | |
a0d0e21e | 978 | inplace = savepv(SvPV(sv,na)); |
79072805 LW |
979 | else |
980 | inplace = Nullch; | |
981 | break; | |
982 | case '\020': /* ^P */ | |
463ee0b2 | 983 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
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 LW |
994 | break; |
995 | case '\027': /* ^W */ | |
463ee0b2 | 996 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
997 | break; |
998 | case '.': | |
748a9306 LW |
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 LW |
1005 | break; |
1006 | case '^': | |
a0d0e21e LW |
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 LW |
1010 | break; |
1011 | case '~': | |
a0d0e21e LW |
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 LW |
1015 | break; |
1016 | case '=': | |
a0d0e21e | 1017 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1018 | break; |
1019 | case '-': | |
a0d0e21e LW |
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 LW |
1023 | break; |
1024 | case '%': | |
a0d0e21e | 1025 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
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 LW |
1031 | } |
1032 | break; | |
1033 | case '*': | |
463ee0b2 | 1034 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1035 | multiline = (i != 0); |
1036 | break; | |
1037 | case '/': | |
a0d0e21e LW |
1038 | if (SvOK(sv)) { |
1039 | nrs = rs = SvPV_force(sv,rslen); | |
8990e307 | 1040 | nrslen = rslen; |
79072805 | 1041 | if (rspara = !rslen) { |
93a17b20 LW |
1042 | nrs = rs = "\n\n"; |
1043 | nrslen = rslen = 2; | |
79072805 | 1044 | } |
93a17b20 | 1045 | nrschar = rschar = rs[rslen - 1]; |
79072805 LW |
1046 | } |
1047 | else { | |
93a17b20 LW |
1048 | nrschar = rschar = 0777; /* fake a non-existent char */ |
1049 | nrslen = rslen = 1; | |
79072805 LW |
1050 | } |
1051 | break; | |
1052 | case '\\': | |
1053 | if (ors) | |
1054 | Safefree(ors); | |
a0d0e21e | 1055 | ors = savepv(SvPV(sv,orslen)); |
79072805 LW |
1056 | break; |
1057 | case ',': | |
1058 | if (ofs) | |
1059 | Safefree(ofs); | |
a0d0e21e | 1060 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 LW |
1061 | break; |
1062 | case '#': | |
1063 | if (ofmt) | |
1064 | Safefree(ofmt); | |
a0d0e21e | 1065 | ofmt = savepv(SvPV(sv,na)); |
79072805 LW |
1066 | break; |
1067 | case '[': | |
a0d0e21e | 1068 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1069 | break; |
1070 | case '?': | |
748a9306 | 1071 | statusvalue = FIXSTATUS(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1072 | break; |
1073 | case '!': | |
748a9306 | 1074 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv),SS$_ABORT); /* will anyone ever use this? */ |
79072805 LW |
1075 | break; |
1076 | case '<': | |
463ee0b2 | 1077 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
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 LW |
1084 | #else |
1085 | #ifdef HAS_SETREUID | |
85e6fe83 | 1086 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 | 1087 | #else |
85e6fe83 LW |
1088 | #ifdef HAS_SETRESUID |
1089 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); | |
79072805 LW |
1090 | #else |
1091 | if (uid == euid) /* special case $< = $> */ | |
1092 | (void)setuid(uid); | |
a0d0e21e LW |
1093 | else { |
1094 | uid = (I32)getuid(); | |
463ee0b2 | 1095 | croak("setruid() not implemented"); |
a0d0e21e | 1096 | } |
79072805 LW |
1097 | #endif |
1098 | #endif | |
85e6fe83 | 1099 | #endif |
748a9306 | 1100 | uid = (I32)getuid(); |
4633a7c4 | 1101 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1102 | break; |
1103 | case '>': | |
463ee0b2 | 1104 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
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 LW |
1111 | #else |
1112 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
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 LW |
1117 | #else |
1118 | if (euid == uid) /* special case $> = $< */ | |
1119 | setuid(euid); | |
a0d0e21e LW |
1120 | else { |
1121 | euid = (I32)geteuid(); | |
463ee0b2 | 1122 | croak("seteuid() not implemented"); |
a0d0e21e | 1123 | } |
79072805 LW |
1124 | #endif |
1125 | #endif | |
85e6fe83 | 1126 | #endif |
79072805 | 1127 | euid = (I32)geteuid(); |
4633a7c4 | 1128 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1129 | break; |
1130 | case '(': | |
463ee0b2 | 1131 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
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 LW |
1138 | #else |
1139 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
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 LW |
1144 | #else |
1145 | if (gid == egid) /* special case $( = $) */ | |
1146 | (void)setgid(gid); | |
748a9306 LW |
1147 | else { |
1148 | gid = (I32)getgid(); | |
463ee0b2 | 1149 | croak("setrgid() not implemented"); |
748a9306 | 1150 | } |
79072805 LW |
1151 | #endif |
1152 | #endif | |
85e6fe83 | 1153 | #endif |
79072805 | 1154 | gid = (I32)getgid(); |
4633a7c4 | 1155 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1156 | break; |
1157 | case ')': | |
463ee0b2 | 1158 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
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 LW |
1165 | #else |
1166 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
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 LW |
1171 | #else |
1172 | if (egid == gid) /* special case $) = $( */ | |
1173 | (void)setgid(egid); | |
748a9306 LW |
1174 | else { |
1175 | egid = (I32)getegid(); | |
463ee0b2 | 1176 | croak("setegid() not implemented"); |
748a9306 | 1177 | } |
79072805 LW |
1178 | #endif |
1179 | #endif | |
85e6fe83 | 1180 | #endif |
79072805 | 1181 | egid = (I32)getegid(); |
4633a7c4 | 1182 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1183 | break; |
1184 | case ':': | |
a0d0e21e | 1185 | chopset = SvPV_force(sv,na); |
79072805 LW |
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 LW |
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 LW |
1218 | *s++ = ' '; |
1219 | s = origargv[0]+i; | |
ed6116ce | 1220 | for (i = 1; i < origargc; i++) |
8990e307 | 1221 | origargv[i] = Nullch; |
79072805 LW |
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 LW |
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 LW |
1251 | { |
1252 | dSP; | |
1253 | GV *gv; | |
a0d0e21e | 1254 | HV *st; |
79072805 LW |
1255 | SV *sv; |
1256 | CV *cv; | |
79072805 | 1257 | AV *oldstack; |
8e07c86e | 1258 | char *signame; |
79072805 LW |
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 LW |
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 LW |
1272 | cv = sv_2cv(*hv_fetch(GvHVn(siggv),"CLD",3,TRUE), |
1273 | &st, &gv, TRUE); | |
79072805 | 1274 | else |
a0d0e21e LW |
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 LW |
1280 | if (dowarn) |
1281 | warn("SIG%s handler \"%s\" not defined.\n", | |
8e07c86e | 1282 | signame, GvENAME(gv) ); |
79072805 LW |
1283 | return; |
1284 | } | |
1285 | ||
1286 | oldstack = stack; | |
a0d0e21e LW |
1287 | if (stack != signalstack) |
1288 | AvFILL(signalstack) = 0; | |
79072805 LW |
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 LW |
1296 | |
1297 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 LW |
1298 | |
1299 | SWITCHSTACK(signalstack, oldstack); | |
79072805 LW |
1300 | |
1301 | return; | |
1302 | } |