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 | ||
c07a80fd | 24 | /* |
25 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
26 | */ | |
27 | ||
28 | struct magic_state { | |
29 | SV* mgs_sv; | |
30 | U32 mgs_flags; | |
31 | }; | |
32 | typedef struct magic_state MGS; | |
33 | ||
34 | static void restore_magic _((void *p)); | |
35 | ||
36 | static MGS * | |
37 | save_magic(sv) | |
38 | SV* sv; | |
39 | { | |
40 | MGS* mgs; | |
41 | ||
42 | assert(SvMAGICAL(sv)); | |
43 | ||
44 | mgs = (MGS*)safemalloc(sizeof(MGS)); | |
45 | mgs->mgs_sv = sv; | |
46 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
47 | SAVEDESTRUCTOR(restore_magic, mgs); | |
48 | ||
49 | SvMAGICAL_off(sv); | |
50 | SvREADONLY_off(sv); | |
51 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
52 | ||
53 | return mgs; | |
54 | } | |
55 | ||
56 | static void | |
57 | restore_magic(p) | |
58 | void* p; | |
59 | { | |
60 | MGS *mgs = (MGS*)p; | |
61 | SV* sv = mgs->mgs_sv; | |
62 | ||
63 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
64 | { | |
65 | if (mgs->mgs_flags) | |
66 | SvFLAGS(sv) |= mgs->mgs_flags; | |
67 | else | |
68 | mg_magical(sv); | |
69 | if (SvGMAGICAL(sv)) | |
70 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
71 | } | |
72 | ||
73 | Safefree(mgs); | |
74 | } | |
75 | ||
8e07c86e | 76 | |
8990e307 LW |
77 | void |
78 | mg_magical(sv) | |
79 | SV* sv; | |
80 | { | |
81 | MAGIC* mg; | |
82 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
83 | MGVTBL* vtbl = mg->mg_virtual; | |
84 | if (vtbl) { | |
a0d0e21e | 85 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
86 | SvGMAGICAL_on(sv); |
87 | if (vtbl->svt_set) | |
88 | SvSMAGICAL_on(sv); | |
89 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) | |
90 | SvRMAGICAL_on(sv); | |
91 | } | |
92 | } | |
93 | } | |
94 | ||
79072805 LW |
95 | int |
96 | mg_get(sv) | |
97 | SV* sv; | |
98 | { | |
c07a80fd | 99 | MGS* mgs; |
79072805 | 100 | MAGIC* mg; |
c6496cc7 | 101 | MAGIC** mgp; |
463ee0b2 | 102 | |
c07a80fd | 103 | ENTER; |
104 | mgs = save_magic(sv); | |
463ee0b2 | 105 | |
c6496cc7 | 106 | mgp = &SvMAGIC(sv); |
107 | while ((mg = *mgp) != 0) { | |
79072805 | 108 | MGVTBL* vtbl = mg->mg_virtual; |
a0d0e21e | 109 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
79072805 | 110 | (*vtbl->svt_get)(sv, mg); |
c6496cc7 | 111 | /* Ignore this magic if it's been deleted */ |
112 | if (*mgp == mg && (mg->mg_flags & MGf_GSKIP)) | |
c07a80fd | 113 | mgs->mgs_flags = 0; |
a0d0e21e | 114 | } |
c6496cc7 | 115 | /* Advance to next magic (complicated by possible deletion) */ |
116 | if (*mgp == mg) | |
117 | mgp = &mg->mg_moremagic; | |
79072805 | 118 | } |
463ee0b2 | 119 | |
c07a80fd | 120 | LEAVE; |
79072805 LW |
121 | return 0; |
122 | } | |
123 | ||
124 | int | |
125 | mg_set(sv) | |
126 | SV* sv; | |
127 | { | |
c07a80fd | 128 | MGS* mgs; |
79072805 | 129 | MAGIC* mg; |
463ee0b2 LW |
130 | MAGIC* nextmg; |
131 | ||
c07a80fd | 132 | ENTER; |
133 | mgs = save_magic(sv); | |
463ee0b2 LW |
134 | |
135 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 136 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 137 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
138 | if (mg->mg_flags & MGf_GSKIP) { |
139 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
c07a80fd | 140 | mgs->mgs_flags = 0; |
a0d0e21e | 141 | } |
79072805 LW |
142 | if (vtbl && vtbl->svt_set) |
143 | (*vtbl->svt_set)(sv, mg); | |
144 | } | |
463ee0b2 | 145 | |
c07a80fd | 146 | LEAVE; |
79072805 LW |
147 | return 0; |
148 | } | |
149 | ||
150 | U32 | |
151 | mg_len(sv) | |
152 | SV* sv; | |
153 | { | |
154 | MAGIC* mg; | |
748a9306 | 155 | char *junk; |
463ee0b2 | 156 | STRLEN len; |
463ee0b2 | 157 | |
79072805 LW |
158 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
159 | MGVTBL* vtbl = mg->mg_virtual; | |
85e6fe83 | 160 | if (vtbl && vtbl->svt_len) { |
c07a80fd | 161 | ENTER; |
162 | save_magic(sv); | |
a0d0e21e | 163 | /* omit MGf_GSKIP -- not changed here */ |
85e6fe83 | 164 | len = (*vtbl->svt_len)(sv, mg); |
c07a80fd | 165 | LEAVE; |
85e6fe83 LW |
166 | return len; |
167 | } | |
168 | } | |
169 | ||
748a9306 | 170 | junk = SvPV(sv, len); |
463ee0b2 | 171 | return len; |
79072805 LW |
172 | } |
173 | ||
174 | int | |
175 | mg_clear(sv) | |
176 | SV* sv; | |
177 | { | |
178 | MAGIC* mg; | |
463ee0b2 | 179 | |
c07a80fd | 180 | ENTER; |
181 | save_magic(sv); | |
463ee0b2 | 182 | |
79072805 LW |
183 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
184 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
185 | /* omit GSKIP -- never set here */ |
186 | ||
79072805 LW |
187 | if (vtbl && vtbl->svt_clear) |
188 | (*vtbl->svt_clear)(sv, mg); | |
189 | } | |
463ee0b2 | 190 | |
c07a80fd | 191 | LEAVE; |
79072805 LW |
192 | return 0; |
193 | } | |
194 | ||
93a17b20 LW |
195 | MAGIC* |
196 | mg_find(sv, type) | |
197 | SV* sv; | |
a0d0e21e | 198 | int type; |
93a17b20 LW |
199 | { |
200 | MAGIC* mg; | |
93a17b20 LW |
201 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
202 | if (mg->mg_type == type) | |
203 | return mg; | |
204 | } | |
205 | return 0; | |
206 | } | |
207 | ||
79072805 | 208 | int |
463ee0b2 | 209 | mg_copy(sv, nsv, key, klen) |
79072805 | 210 | SV* sv; |
463ee0b2 LW |
211 | SV* nsv; |
212 | char *key; | |
213 | STRLEN klen; | |
79072805 | 214 | { |
463ee0b2 | 215 | int count = 0; |
79072805 | 216 | MAGIC* mg; |
463ee0b2 LW |
217 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
218 | if (isUPPER(mg->mg_type)) { | |
a0d0e21e | 219 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 220 | count++; |
79072805 | 221 | } |
79072805 | 222 | } |
463ee0b2 | 223 | return count; |
79072805 LW |
224 | } |
225 | ||
226 | int | |
463ee0b2 | 227 | mg_free(sv) |
79072805 LW |
228 | SV* sv; |
229 | { | |
230 | MAGIC* mg; | |
231 | MAGIC* moremagic; | |
232 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
233 | MGVTBL* vtbl = mg->mg_virtual; | |
234 | moremagic = mg->mg_moremagic; | |
235 | if (vtbl && vtbl->svt_free) | |
236 | (*vtbl->svt_free)(sv, mg); | |
93a17b20 | 237 | if (mg->mg_ptr && mg->mg_type != 'g') |
79072805 | 238 | Safefree(mg->mg_ptr); |
85e6fe83 | 239 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 240 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
241 | Safefree(mg); |
242 | } | |
243 | SvMAGIC(sv) = 0; | |
244 | return 0; | |
245 | } | |
246 | ||
247 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
248 | #include <signal.h> | |
249 | #endif | |
250 | ||
93a17b20 LW |
251 | U32 |
252 | magic_len(sv, mg) | |
253 | SV *sv; | |
254 | MAGIC *mg; | |
255 | { | |
256 | register I32 paren; | |
257 | register char *s; | |
258 | register I32 i; | |
748a9306 | 259 | char *t; |
93a17b20 LW |
260 | |
261 | switch (*mg->mg_ptr) { | |
262 | case '1': case '2': case '3': case '4': | |
263 | case '5': case '6': case '7': case '8': case '9': case '&': | |
264 | if (curpm) { | |
265 | paren = atoi(mg->mg_ptr); | |
266 | getparen: | |
267 | if (curpm->op_pmregexp && | |
268 | paren <= curpm->op_pmregexp->nparens && | |
748a9306 LW |
269 | (s = curpm->op_pmregexp->startp[paren]) && |
270 | (t = curpm->op_pmregexp->endp[paren]) ) { | |
271 | i = t - s; | |
93a17b20 LW |
272 | if (i >= 0) |
273 | return i; | |
93a17b20 | 274 | } |
93a17b20 | 275 | } |
748a9306 | 276 | return 0; |
93a17b20 LW |
277 | break; |
278 | case '+': | |
279 | if (curpm) { | |
280 | paren = curpm->op_pmregexp->lastparen; | |
a0d0e21e LW |
281 | if (!paren) |
282 | return 0; | |
93a17b20 LW |
283 | goto getparen; |
284 | } | |
748a9306 | 285 | return 0; |
93a17b20 LW |
286 | break; |
287 | case '`': | |
288 | if (curpm) { | |
289 | if (curpm->op_pmregexp && | |
290 | (s = curpm->op_pmregexp->subbeg) ) { | |
291 | i = curpm->op_pmregexp->startp[0] - s; | |
292 | if (i >= 0) | |
293 | return i; | |
93a17b20 | 294 | } |
93a17b20 | 295 | } |
748a9306 | 296 | return 0; |
93a17b20 LW |
297 | case '\'': |
298 | if (curpm) { | |
299 | if (curpm->op_pmregexp && | |
300 | (s = curpm->op_pmregexp->endp[0]) ) { | |
301 | return (STRLEN) (curpm->op_pmregexp->subend - s); | |
302 | } | |
93a17b20 | 303 | } |
748a9306 | 304 | return 0; |
93a17b20 LW |
305 | case ',': |
306 | return (STRLEN)ofslen; | |
307 | case '\\': | |
308 | return (STRLEN)orslen; | |
309 | } | |
310 | magic_get(sv,mg); | |
311 | if (!SvPOK(sv) && SvNIOK(sv)) | |
463ee0b2 | 312 | sv_2pv(sv, &na); |
93a17b20 LW |
313 | if (SvPOK(sv)) |
314 | return SvCUR(sv); | |
315 | return 0; | |
316 | } | |
317 | ||
79072805 LW |
318 | int |
319 | magic_get(sv, mg) | |
320 | SV *sv; | |
321 | MAGIC *mg; | |
322 | { | |
323 | register I32 paren; | |
324 | register char *s; | |
325 | register I32 i; | |
748a9306 | 326 | char *t; |
79072805 LW |
327 | |
328 | switch (*mg->mg_ptr) { | |
748a9306 LW |
329 | case '\001': /* ^A */ |
330 | sv_setsv(sv, bodytarget); | |
331 | break; | |
79072805 LW |
332 | case '\004': /* ^D */ |
333 | sv_setiv(sv,(I32)(debug & 32767)); | |
334 | break; | |
28f23441 | 335 | case '\005': /* ^E */ |
336 | #ifdef VMS | |
337 | { | |
338 | # include <descrip.h> | |
339 | # include <starlet.h> | |
340 | char msg[255]; | |
341 | $DESCRIPTOR(msgdsc,msg); | |
342 | sv_setnv(sv,(double)vaxc$errno); | |
343 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) | |
344 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
345 | else | |
346 | sv_setpv(sv,""); | |
347 | } | |
348 | #else | |
349 | sv_setnv(sv,(double)errno); | |
350 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
351 | #endif | |
352 | SvNOK_on(sv); /* what a wonderful hack! */ | |
353 | break; | |
79072805 LW |
354 | case '\006': /* ^F */ |
355 | sv_setiv(sv,(I32)maxsysfd); | |
356 | break; | |
a0d0e21e LW |
357 | case '\010': /* ^H */ |
358 | sv_setiv(sv,(I32)hints); | |
359 | break; | |
79072805 LW |
360 | case '\t': /* ^I */ |
361 | if (inplace) | |
362 | sv_setpv(sv, inplace); | |
363 | else | |
364 | sv_setsv(sv,&sv_undef); | |
365 | break; | |
28f23441 | 366 | case '\017': /* ^O */ |
367 | sv_setpv(sv,osname); | |
368 | break; | |
79072805 LW |
369 | case '\020': /* ^P */ |
370 | sv_setiv(sv,(I32)perldb); | |
371 | break; | |
372 | case '\024': /* ^T */ | |
373 | sv_setiv(sv,(I32)basetime); | |
374 | break; | |
375 | case '\027': /* ^W */ | |
376 | sv_setiv(sv,(I32)dowarn); | |
377 | break; | |
378 | case '1': case '2': case '3': case '4': | |
379 | case '5': case '6': case '7': case '8': case '9': case '&': | |
380 | if (curpm) { | |
381 | paren = atoi(GvENAME(mg->mg_obj)); | |
382 | getparen: | |
383 | if (curpm->op_pmregexp && | |
384 | paren <= curpm->op_pmregexp->nparens && | |
a0d0e21e | 385 | (s = curpm->op_pmregexp->startp[paren]) && |
748a9306 LW |
386 | (t = curpm->op_pmregexp->endp[paren]) ) { |
387 | i = t - s; | |
388 | if (i >= 0) { | |
389 | MAGIC *tmg; | |
79072805 | 390 | sv_setpvn(sv,s,i); |
748a9306 LW |
391 | if (tainting && (tmg = mg_find(sv,'t'))) |
392 | tmg->mg_len = 0; /* guarantee $1 untainted */ | |
393 | break; | |
394 | } | |
79072805 | 395 | } |
79072805 | 396 | } |
748a9306 | 397 | sv_setsv(sv,&sv_undef); |
79072805 LW |
398 | break; |
399 | case '+': | |
400 | if (curpm) { | |
401 | paren = curpm->op_pmregexp->lastparen; | |
a0d0e21e LW |
402 | if (paren) |
403 | goto getparen; | |
79072805 | 404 | } |
748a9306 | 405 | sv_setsv(sv,&sv_undef); |
79072805 LW |
406 | break; |
407 | case '`': | |
408 | if (curpm) { | |
409 | if (curpm->op_pmregexp && | |
410 | (s = curpm->op_pmregexp->subbeg) ) { | |
411 | i = curpm->op_pmregexp->startp[0] - s; | |
748a9306 | 412 | if (i >= 0) { |
79072805 | 413 | sv_setpvn(sv,s,i); |
748a9306 LW |
414 | break; |
415 | } | |
79072805 | 416 | } |
79072805 | 417 | } |
748a9306 | 418 | sv_setsv(sv,&sv_undef); |
79072805 LW |
419 | break; |
420 | case '\'': | |
421 | if (curpm) { | |
422 | if (curpm->op_pmregexp && | |
423 | (s = curpm->op_pmregexp->endp[0]) ) { | |
424 | sv_setpvn(sv,s, curpm->op_pmregexp->subend - s); | |
748a9306 | 425 | break; |
79072805 | 426 | } |
79072805 | 427 | } |
748a9306 | 428 | sv_setsv(sv,&sv_undef); |
79072805 LW |
429 | break; |
430 | case '.': | |
431 | #ifndef lint | |
a0d0e21e | 432 | if (GvIO(last_in_gv)) { |
8990e307 | 433 | sv_setiv(sv,(I32)IoLINES(GvIO(last_in_gv))); |
79072805 LW |
434 | } |
435 | #endif | |
436 | break; | |
437 | case '?': | |
438 | sv_setiv(sv,(I32)statusvalue); | |
439 | break; | |
440 | case '^': | |
a0d0e21e | 441 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 LW |
442 | if (s) |
443 | sv_setpv(sv,s); | |
444 | else { | |
445 | sv_setpv(sv,GvENAME(defoutgv)); | |
446 | sv_catpv(sv,"_TOP"); | |
447 | } | |
448 | break; | |
449 | case '~': | |
a0d0e21e | 450 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 LW |
451 | if (!s) |
452 | s = GvENAME(defoutgv); | |
453 | sv_setpv(sv,s); | |
454 | break; | |
455 | #ifndef lint | |
456 | case '=': | |
a0d0e21e | 457 | sv_setiv(sv,(I32)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 LW |
458 | break; |
459 | case '-': | |
a0d0e21e | 460 | sv_setiv(sv,(I32)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 LW |
461 | break; |
462 | case '%': | |
a0d0e21e | 463 | sv_setiv(sv,(I32)IoPAGE(GvIOp(defoutgv))); |
79072805 LW |
464 | break; |
465 | #endif | |
466 | case ':': | |
467 | break; | |
468 | case '/': | |
469 | break; | |
470 | case '[': | |
a0d0e21e | 471 | sv_setiv(sv,(I32)curcop->cop_arybase); |
79072805 LW |
472 | break; |
473 | case '|': | |
a0d0e21e | 474 | sv_setiv(sv, (IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
475 | break; |
476 | case ',': | |
477 | sv_setpvn(sv,ofs,ofslen); | |
478 | break; | |
479 | case '\\': | |
480 | sv_setpvn(sv,ors,orslen); | |
481 | break; | |
482 | case '#': | |
483 | sv_setpv(sv,ofmt); | |
484 | break; | |
485 | case '!': | |
a5f75d66 AD |
486 | #ifdef VMS |
487 | sv_setnv(sv,(double)((errno == EVMSERR) ? vaxc$errno : errno)); | |
488 | #else | |
79072805 | 489 | sv_setnv(sv,(double)errno); |
a5f75d66 | 490 | #endif |
2304df62 | 491 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
79072805 LW |
492 | SvNOK_on(sv); /* what a wonderful hack! */ |
493 | break; | |
494 | case '<': | |
495 | sv_setiv(sv,(I32)uid); | |
496 | break; | |
497 | case '>': | |
498 | sv_setiv(sv,(I32)euid); | |
499 | break; | |
500 | case '(': | |
501 | s = buf; | |
502 | (void)sprintf(s,"%d",(int)gid); | |
503 | goto add_groups; | |
504 | case ')': | |
505 | s = buf; | |
506 | (void)sprintf(s,"%d",(int)egid); | |
507 | add_groups: | |
508 | while (*s) s++; | |
509 | #ifdef HAS_GETGROUPS | |
510 | #ifndef NGROUPS | |
511 | #define NGROUPS 32 | |
512 | #endif | |
513 | { | |
a0d0e21e | 514 | Groups_t gary[NGROUPS]; |
79072805 LW |
515 | |
516 | i = getgroups(NGROUPS,gary); | |
517 | while (--i >= 0) { | |
518 | (void)sprintf(s," %ld", (long)gary[i]); | |
519 | while (*s) s++; | |
520 | } | |
521 | } | |
522 | #endif | |
523 | sv_setpv(sv,buf); | |
524 | break; | |
525 | case '*': | |
526 | break; | |
527 | case '0': | |
528 | break; | |
529 | } | |
a0d0e21e | 530 | return 0; |
79072805 LW |
531 | } |
532 | ||
533 | int | |
534 | magic_getuvar(sv, mg) | |
535 | SV *sv; | |
536 | MAGIC *mg; | |
537 | { | |
538 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
539 | ||
540 | if (uf && uf->uf_val) | |
541 | (*uf->uf_val)(uf->uf_index, sv); | |
542 | return 0; | |
543 | } | |
544 | ||
545 | int | |
546 | magic_setenv(sv,mg) | |
547 | SV* sv; | |
548 | MAGIC* mg; | |
549 | { | |
550 | register char *s; | |
a0d0e21e LW |
551 | STRLEN len; |
552 | I32 i; | |
553 | s = SvPV(sv,len); | |
79072805 | 554 | my_setenv(mg->mg_ptr,s); |
a0d0e21e LW |
555 | #ifdef DYNAMIC_ENV_FETCH |
556 | /* We just undefd an environment var. Is a replacement */ | |
557 | /* waiting in the wings? */ | |
558 | if (!len) { | |
559 | SV **envsvp; | |
560 | if (envsvp = hv_fetch(GvHVn(envgv),mg->mg_ptr,mg->mg_len,FALSE)) | |
561 | s = SvPV(*envsvp,len); | |
562 | } | |
563 | #endif | |
79072805 LW |
564 | /* And you'll never guess what the dog had */ |
565 | /* in its mouth... */ | |
463ee0b2 LW |
566 | if (tainting) { |
567 | if (s && strEQ(mg->mg_ptr,"PATH")) { | |
a0d0e21e | 568 | char *strend = s + len; |
463ee0b2 LW |
569 | |
570 | while (s < strend) { | |
571 | s = cpytill(tokenbuf,s,strend,':',&i); | |
572 | s++; | |
573 | if (*tokenbuf != '/' | |
a0d0e21e | 574 | || (Stat(tokenbuf,&statbuf) && (statbuf.st_mode & 2)) ) |
8990e307 | 575 | MgTAINTEDDIR_on(mg); |
463ee0b2 | 576 | } |
79072805 LW |
577 | } |
578 | } | |
79072805 LW |
579 | return 0; |
580 | } | |
581 | ||
582 | int | |
85e6fe83 LW |
583 | magic_clearenv(sv,mg) |
584 | SV* sv; | |
585 | MAGIC* mg; | |
586 | { | |
587 | my_setenv(mg->mg_ptr,Nullch); | |
588 | return 0; | |
589 | } | |
590 | ||
3d37d572 | 591 | #ifdef HAS_SIGACTION |
592 | /* set up reliable signal() clone */ | |
593 | ||
594 | typedef void (*Sigfunc) _((int)); | |
595 | ||
596 | static | |
597 | Sigfunc rsignal(signo,handler) | |
598 | int signo; | |
599 | Sigfunc handler; | |
600 | { | |
601 | struct sigaction act,oact; | |
602 | ||
603 | act.sa_handler = handler; | |
604 | sigemptyset(&act.sa_mask); | |
605 | act.sa_flags = 0; | |
606 | #ifdef SIGALRM | |
607 | if (signo == SIGALRM) { | |
608 | #else | |
609 | if (0) { | |
610 | #endif | |
611 | #ifdef SA_INTERRUPT | |
612 | act.sa_flags |= SA_INTERRUPT; /* SunOS */ | |
613 | #endif | |
614 | } else { | |
615 | #ifdef SA_RESTART | |
616 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ | |
617 | #endif | |
618 | } | |
619 | if (sigaction(signo, &act, &oact) < 0) | |
620 | return(SIG_ERR); | |
621 | else | |
622 | return(oact.sa_handler); | |
623 | } | |
624 | ||
625 | #else | |
626 | ||
627 | /* ah well, so much for reliability */ | |
628 | ||
629 | #define rsignal(x,y) signal(x,y) | |
630 | ||
631 | #endif | |
632 | ||
633 | ||
85e6fe83 | 634 | int |
79072805 LW |
635 | magic_setsig(sv,mg) |
636 | SV* sv; | |
637 | MAGIC* mg; | |
638 | { | |
639 | register char *s; | |
640 | I32 i; | |
748a9306 | 641 | SV** svp; |
a0d0e21e | 642 | |
748a9306 LW |
643 | s = mg->mg_ptr; |
644 | if (*s == '_') { | |
645 | if (strEQ(s,"__DIE__")) | |
646 | svp = &diehook; | |
647 | else if (strEQ(s,"__WARN__")) | |
648 | svp = &warnhook; | |
649 | else if (strEQ(s,"__PARSE__")) | |
650 | svp = &parsehook; | |
651 | else | |
652 | croak("No such hook: %s", s); | |
653 | i = 0; | |
4633a7c4 LW |
654 | if (*svp) { |
655 | SvREFCNT_dec(*svp); | |
656 | *svp = 0; | |
657 | } | |
748a9306 LW |
658 | } |
659 | else { | |
660 | i = whichsig(s); /* ...no, a brick */ | |
661 | if (!i) { | |
662 | if (dowarn || strEQ(s,"ALARM")) | |
663 | warn("No such signal: SIG%s", s); | |
664 | return 0; | |
665 | } | |
666 | } | |
a0d0e21e | 667 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 668 | if (i) |
3d37d572 | 669 | (void)rsignal(i,sighandler); |
748a9306 LW |
670 | else |
671 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
672 | return 0; |
673 | } | |
674 | s = SvPV_force(sv,na); | |
748a9306 LW |
675 | if (strEQ(s,"IGNORE")) { |
676 | if (i) | |
3d37d572 | 677 | (void)rsignal(i,SIG_IGN); |
748a9306 LW |
678 | else |
679 | *svp = 0; | |
680 | } | |
681 | else if (strEQ(s,"DEFAULT") || !*s) { | |
682 | if (i) | |
3d37d572 | 683 | (void)rsignal(i,SIG_DFL); |
748a9306 LW |
684 | else |
685 | *svp = 0; | |
686 | } | |
79072805 | 687 | else { |
2304df62 AD |
688 | if (!strchr(s,':') && !strchr(s,'\'')) { |
689 | sprintf(tokenbuf, "main::%s",s); | |
79072805 LW |
690 | sv_setpv(sv,tokenbuf); |
691 | } | |
748a9306 | 692 | if (i) |
3d37d572 | 693 | (void)rsignal(i,sighandler); |
748a9306 LW |
694 | else |
695 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
696 | } |
697 | return 0; | |
698 | } | |
699 | ||
700 | int | |
463ee0b2 | 701 | magic_setisa(sv,mg) |
79072805 LW |
702 | SV* sv; |
703 | MAGIC* mg; | |
704 | { | |
463ee0b2 LW |
705 | sub_generation++; |
706 | return 0; | |
707 | } | |
708 | ||
a0d0e21e LW |
709 | #ifdef OVERLOAD |
710 | ||
463ee0b2 | 711 | int |
a0d0e21e | 712 | magic_setamagic(sv,mg) |
463ee0b2 LW |
713 | SV* sv; |
714 | MAGIC* mg; | |
715 | { | |
a0d0e21e LW |
716 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
717 | amagic_generation++; | |
463ee0b2 | 718 | |
a0d0e21e LW |
719 | return 0; |
720 | } | |
721 | #endif /* OVERLOAD */ | |
463ee0b2 | 722 | |
a0d0e21e LW |
723 | static int |
724 | magic_methpack(sv,mg,meth) | |
725 | SV* sv; | |
726 | MAGIC* mg; | |
727 | char *meth; | |
728 | { | |
729 | dSP; | |
463ee0b2 | 730 | |
a0d0e21e LW |
731 | ENTER; |
732 | SAVETMPS; | |
733 | PUSHMARK(sp); | |
734 | EXTEND(sp, 2); | |
735 | PUSHs(mg->mg_obj); | |
463ee0b2 | 736 | if (mg->mg_ptr) |
a0d0e21e LW |
737 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
738 | else if (mg->mg_type == 'p') | |
739 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
740 | PUTBACK; |
741 | ||
a0d0e21e LW |
742 | if (perl_call_method(meth, G_SCALAR)) |
743 | sv_setsv(sv, *stack_sp--); | |
463ee0b2 | 744 | |
a0d0e21e LW |
745 | FREETMPS; |
746 | LEAVE; | |
747 | return 0; | |
748 | } | |
463ee0b2 | 749 | |
a0d0e21e LW |
750 | int |
751 | magic_getpack(sv,mg) | |
752 | SV* sv; | |
753 | MAGIC* mg; | |
754 | { | |
755 | magic_methpack(sv,mg,"FETCH"); | |
756 | if (mg->mg_ptr) | |
757 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
758 | return 0; |
759 | } | |
760 | ||
761 | int | |
762 | magic_setpack(sv,mg) | |
763 | SV* sv; | |
764 | MAGIC* mg; | |
765 | { | |
463ee0b2 | 766 | dSP; |
463ee0b2 | 767 | |
a0d0e21e LW |
768 | PUSHMARK(sp); |
769 | EXTEND(sp, 3); | |
770 | PUSHs(mg->mg_obj); | |
463ee0b2 | 771 | if (mg->mg_ptr) |
a0d0e21e LW |
772 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); |
773 | else if (mg->mg_type == 'p') | |
774 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
775 | PUSHs(sv); |
776 | PUTBACK; | |
777 | ||
a0d0e21e | 778 | perl_call_method("STORE", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
779 | |
780 | return 0; | |
781 | } | |
782 | ||
783 | int | |
784 | magic_clearpack(sv,mg) | |
785 | SV* sv; | |
786 | MAGIC* mg; | |
787 | { | |
a0d0e21e LW |
788 | return magic_methpack(sv,mg,"DELETE"); |
789 | } | |
463ee0b2 | 790 | |
a0d0e21e LW |
791 | int magic_wipepack(sv,mg) |
792 | SV* sv; | |
793 | MAGIC* mg; | |
794 | { | |
795 | dSP; | |
463ee0b2 | 796 | |
a0d0e21e LW |
797 | PUSHMARK(sp); |
798 | XPUSHs(mg->mg_obj); | |
463ee0b2 | 799 | PUTBACK; |
463ee0b2 | 800 | |
a0d0e21e | 801 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
802 | |
803 | return 0; | |
804 | } | |
805 | ||
806 | int | |
807 | magic_nextpack(sv,mg,key) | |
808 | SV* sv; | |
809 | MAGIC* mg; | |
810 | SV* key; | |
811 | { | |
463ee0b2 | 812 | dSP; |
a0d0e21e | 813 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
814 | |
815 | ENTER; | |
a0d0e21e LW |
816 | SAVETMPS; |
817 | PUSHMARK(sp); | |
818 | EXTEND(sp, 2); | |
819 | PUSHs(mg->mg_obj); | |
463ee0b2 LW |
820 | if (SvOK(key)) |
821 | PUSHs(key); | |
822 | PUTBACK; | |
823 | ||
a0d0e21e LW |
824 | if (perl_call_method(meth, G_SCALAR)) |
825 | sv_setsv(key, *stack_sp--); | |
463ee0b2 | 826 | |
a0d0e21e LW |
827 | FREETMPS; |
828 | LEAVE; | |
79072805 LW |
829 | return 0; |
830 | } | |
831 | ||
832 | int | |
a0d0e21e LW |
833 | magic_existspack(sv,mg) |
834 | SV* sv; | |
835 | MAGIC* mg; | |
836 | { | |
837 | return magic_methpack(sv,mg,"EXISTS"); | |
838 | } | |
839 | ||
840 | int | |
79072805 LW |
841 | magic_setdbline(sv,mg) |
842 | SV* sv; | |
843 | MAGIC* mg; | |
844 | { | |
845 | OP *o; | |
846 | I32 i; | |
847 | GV* gv; | |
848 | SV** svp; | |
849 | ||
850 | gv = DBline; | |
851 | i = SvTRUE(sv); | |
852 | svp = av_fetch(GvAV(gv),atoi(mg->mg_ptr), FALSE); | |
8990e307 | 853 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 854 | o->op_private = i; |
79072805 LW |
855 | else |
856 | warn("Can't break at that line\n"); | |
857 | return 0; | |
858 | } | |
859 | ||
860 | int | |
861 | magic_getarylen(sv,mg) | |
862 | SV* sv; | |
863 | MAGIC* mg; | |
864 | { | |
a0d0e21e | 865 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 LW |
866 | return 0; |
867 | } | |
868 | ||
869 | int | |
870 | magic_setarylen(sv,mg) | |
871 | SV* sv; | |
872 | MAGIC* mg; | |
873 | { | |
a0d0e21e LW |
874 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
875 | return 0; | |
876 | } | |
877 | ||
878 | int | |
879 | magic_getpos(sv,mg) | |
880 | SV* sv; | |
881 | MAGIC* mg; | |
882 | { | |
883 | SV* lsv = LvTARG(sv); | |
884 | ||
885 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
886 | mg = mg_find(lsv, 'g'); | |
887 | if (mg && mg->mg_len >= 0) { | |
888 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); | |
889 | return 0; | |
890 | } | |
891 | } | |
892 | (void)SvOK_off(sv); | |
893 | return 0; | |
894 | } | |
895 | ||
896 | int | |
897 | magic_setpos(sv,mg) | |
898 | SV* sv; | |
899 | MAGIC* mg; | |
900 | { | |
901 | SV* lsv = LvTARG(sv); | |
902 | SSize_t pos; | |
903 | STRLEN len; | |
904 | ||
905 | mg = 0; | |
906 | ||
907 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
908 | mg = mg_find(lsv, 'g'); | |
909 | if (!mg) { | |
910 | if (!SvOK(sv)) | |
911 | return 0; | |
912 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
913 | mg = mg_find(lsv, 'g'); | |
914 | } | |
915 | else if (!SvOK(sv)) { | |
916 | mg->mg_len = -1; | |
917 | return 0; | |
918 | } | |
919 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
920 | ||
921 | pos = SvIV(sv) - curcop->cop_arybase; | |
922 | if (pos < 0) { | |
923 | pos += len; | |
924 | if (pos < 0) | |
925 | pos = 0; | |
926 | } | |
927 | else if (pos > len) | |
928 | pos = len; | |
929 | mg->mg_len = pos; | |
930 | ||
79072805 LW |
931 | return 0; |
932 | } | |
933 | ||
934 | int | |
935 | magic_getglob(sv,mg) | |
936 | SV* sv; | |
937 | MAGIC* mg; | |
938 | { | |
939 | gv_efullname(sv,((GV*)sv));/* a gv value, be nice */ | |
940 | return 0; | |
941 | } | |
942 | ||
943 | int | |
944 | magic_setglob(sv,mg) | |
945 | SV* sv; | |
946 | MAGIC* mg; | |
947 | { | |
948 | register char *s; | |
949 | GV* gv; | |
950 | ||
951 | if (!SvOK(sv)) | |
952 | return 0; | |
463ee0b2 | 953 | s = SvPV(sv, na); |
79072805 LW |
954 | if (*s == '*' && s[1]) |
955 | s++; | |
85e6fe83 | 956 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
957 | if (sv == (SV*)gv) |
958 | return 0; | |
959 | if (GvGP(sv)) | |
960 | gp_free(sv); | |
961 | GvGP(sv) = gp_ref(GvGP(gv)); | |
962 | if (!GvAV(gv)) | |
963 | gv_AVadd(gv); | |
964 | if (!GvHV(gv)) | |
965 | gv_HVadd(gv); | |
a0d0e21e LW |
966 | if (!GvIOp(gv)) |
967 | GvIOp(gv) = newIO(); | |
79072805 LW |
968 | return 0; |
969 | } | |
970 | ||
971 | int | |
972 | magic_setsubstr(sv,mg) | |
973 | SV* sv; | |
974 | MAGIC* mg; | |
975 | { | |
8990e307 LW |
976 | STRLEN len; |
977 | char *tmps = SvPV(sv,len); | |
978 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
979 | return 0; |
980 | } | |
981 | ||
982 | int | |
463ee0b2 LW |
983 | magic_gettaint(sv,mg) |
984 | SV* sv; | |
985 | MAGIC* mg; | |
986 | { | |
748a9306 LW |
987 | if (mg->mg_len & 1) |
988 | tainted = TRUE; | |
989 | else if (mg->mg_len & 2 && mg->mg_obj == sv) /* kludge */ | |
990 | tainted = TRUE; | |
463ee0b2 LW |
991 | return 0; |
992 | } | |
993 | ||
994 | int | |
995 | magic_settaint(sv,mg) | |
996 | SV* sv; | |
997 | MAGIC* mg; | |
998 | { | |
748a9306 LW |
999 | if (localizing) { |
1000 | if (localizing == 1) | |
1001 | mg->mg_len <<= 1; | |
1002 | else | |
1003 | mg->mg_len >>= 1; | |
a0d0e21e | 1004 | } |
748a9306 LW |
1005 | else if (tainted) |
1006 | mg->mg_len |= 1; | |
1007 | else | |
1008 | mg->mg_len &= ~1; | |
463ee0b2 LW |
1009 | return 0; |
1010 | } | |
1011 | ||
1012 | int | |
79072805 LW |
1013 | magic_setvec(sv,mg) |
1014 | SV* sv; | |
1015 | MAGIC* mg; | |
1016 | { | |
1017 | do_vecset(sv); /* XXX slurp this routine */ | |
1018 | return 0; | |
1019 | } | |
1020 | ||
1021 | int | |
93a17b20 LW |
1022 | magic_setmglob(sv,mg) |
1023 | SV* sv; | |
1024 | MAGIC* mg; | |
1025 | { | |
a0d0e21e | 1026 | mg->mg_len = -1; |
c6496cc7 | 1027 | SvSCREAM_off(sv); |
93a17b20 LW |
1028 | return 0; |
1029 | } | |
1030 | ||
1031 | int | |
79072805 LW |
1032 | magic_setbm(sv,mg) |
1033 | SV* sv; | |
1034 | MAGIC* mg; | |
1035 | { | |
463ee0b2 | 1036 | sv_unmagic(sv, 'B'); |
79072805 LW |
1037 | SvVALID_off(sv); |
1038 | return 0; | |
1039 | } | |
1040 | ||
1041 | int | |
1042 | magic_setuvar(sv,mg) | |
1043 | SV* sv; | |
1044 | MAGIC* mg; | |
1045 | { | |
1046 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1047 | ||
1048 | if (uf && uf->uf_set) | |
1049 | (*uf->uf_set)(uf->uf_index, sv); | |
1050 | return 0; | |
1051 | } | |
1052 | ||
1053 | int | |
1054 | magic_set(sv,mg) | |
1055 | SV* sv; | |
1056 | MAGIC* mg; | |
1057 | { | |
1058 | register char *s; | |
1059 | I32 i; | |
8990e307 | 1060 | STRLEN len; |
79072805 | 1061 | switch (*mg->mg_ptr) { |
748a9306 LW |
1062 | case '\001': /* ^A */ |
1063 | sv_setsv(bodytarget, sv); | |
1064 | break; | |
79072805 | 1065 | case '\004': /* ^D */ |
8990e307 | 1066 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1067 | DEBUG_x(dump_all()); |
1068 | break; | |
28f23441 | 1069 | case '\005': /* ^E */ |
1070 | #ifdef VMS | |
1071 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1072 | #else | |
1073 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv),4); /* will anyone ever use this? */ | |
1074 | #endif | |
1075 | break; | |
79072805 | 1076 | case '\006': /* ^F */ |
463ee0b2 | 1077 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1078 | break; |
a0d0e21e LW |
1079 | case '\010': /* ^H */ |
1080 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1081 | break; | |
79072805 LW |
1082 | case '\t': /* ^I */ |
1083 | if (inplace) | |
1084 | Safefree(inplace); | |
1085 | if (SvOK(sv)) | |
a0d0e21e | 1086 | inplace = savepv(SvPV(sv,na)); |
79072805 LW |
1087 | else |
1088 | inplace = Nullch; | |
1089 | break; | |
28f23441 | 1090 | case '\017': /* ^O */ |
1091 | if (osname) | |
1092 | Safefree(osname); | |
1093 | if (SvOK(sv)) | |
1094 | osname = savepv(SvPV(sv,na)); | |
1095 | else | |
1096 | osname = Nullch; | |
1097 | break; | |
79072805 | 1098 | case '\020': /* ^P */ |
463ee0b2 | 1099 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1100 | if (i != perldb) { |
1101 | if (perldb) | |
1102 | oldlastpm = curpm; | |
1103 | else | |
1104 | curpm = oldlastpm; | |
1105 | } | |
1106 | perldb = i; | |
1107 | break; | |
1108 | case '\024': /* ^T */ | |
85e6fe83 | 1109 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1110 | break; |
1111 | case '\027': /* ^W */ | |
463ee0b2 | 1112 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1113 | break; |
1114 | case '.': | |
748a9306 LW |
1115 | if (localizing) { |
1116 | if (localizing == 1) | |
1117 | save_sptr((SV**)&last_in_gv); | |
1118 | } | |
2304df62 | 1119 | else if (SvOK(sv)) |
a0d0e21e | 1120 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 LW |
1121 | break; |
1122 | case '^': | |
a0d0e21e LW |
1123 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1124 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1125 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1126 | break; |
1127 | case '~': | |
a0d0e21e LW |
1128 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1129 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1130 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1131 | break; |
1132 | case '=': | |
a0d0e21e | 1133 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1134 | break; |
1135 | case '-': | |
a0d0e21e LW |
1136 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1137 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) | |
1138 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; | |
79072805 LW |
1139 | break; |
1140 | case '%': | |
a0d0e21e | 1141 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1142 | break; |
1143 | case '|': | |
a0d0e21e | 1144 | IoFLAGS(GvIOp(defoutgv)) &= ~IOf_FLUSH; |
463ee0b2 | 1145 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) != 0) { |
a0d0e21e | 1146 | IoFLAGS(GvIOp(defoutgv)) |= IOf_FLUSH; |
79072805 LW |
1147 | } |
1148 | break; | |
1149 | case '*': | |
463ee0b2 | 1150 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1151 | multiline = (i != 0); |
1152 | break; | |
1153 | case '/': | |
c07a80fd | 1154 | SvREFCNT_dec(nrs); |
1155 | nrs = newSVsv(sv); | |
1156 | SvREFCNT_dec(rs); | |
1157 | rs = SvREFCNT_inc(nrs); | |
79072805 LW |
1158 | break; |
1159 | case '\\': | |
1160 | if (ors) | |
1161 | Safefree(ors); | |
a0d0e21e | 1162 | ors = savepv(SvPV(sv,orslen)); |
79072805 LW |
1163 | break; |
1164 | case ',': | |
1165 | if (ofs) | |
1166 | Safefree(ofs); | |
a0d0e21e | 1167 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 LW |
1168 | break; |
1169 | case '#': | |
1170 | if (ofmt) | |
1171 | Safefree(ofmt); | |
a0d0e21e | 1172 | ofmt = savepv(SvPV(sv,na)); |
79072805 LW |
1173 | break; |
1174 | case '[': | |
a0d0e21e | 1175 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1176 | break; |
1177 | case '?': | |
748a9306 | 1178 | statusvalue = FIXSTATUS(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1179 | break; |
1180 | case '!': | |
28f23441 | 1181 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv),SvIV(sv) == EVMSERR ? 4 : vaxc$errno); /* will anyone ever use this? */ |
79072805 LW |
1182 | break; |
1183 | case '<': | |
463ee0b2 | 1184 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1185 | if (delaymagic) { |
1186 | delaymagic |= DM_RUID; | |
1187 | break; /* don't do magic till later */ | |
1188 | } | |
1189 | #ifdef HAS_SETRUID | |
85e6fe83 | 1190 | (void)setruid((Uid_t)uid); |
79072805 LW |
1191 | #else |
1192 | #ifdef HAS_SETREUID | |
85e6fe83 | 1193 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 | 1194 | #else |
85e6fe83 LW |
1195 | #ifdef HAS_SETRESUID |
1196 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); | |
79072805 LW |
1197 | #else |
1198 | if (uid == euid) /* special case $< = $> */ | |
1199 | (void)setuid(uid); | |
a0d0e21e LW |
1200 | else { |
1201 | uid = (I32)getuid(); | |
463ee0b2 | 1202 | croak("setruid() not implemented"); |
a0d0e21e | 1203 | } |
79072805 LW |
1204 | #endif |
1205 | #endif | |
85e6fe83 | 1206 | #endif |
748a9306 | 1207 | uid = (I32)getuid(); |
4633a7c4 | 1208 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1209 | break; |
1210 | case '>': | |
463ee0b2 | 1211 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1212 | if (delaymagic) { |
1213 | delaymagic |= DM_EUID; | |
1214 | break; /* don't do magic till later */ | |
1215 | } | |
1216 | #ifdef HAS_SETEUID | |
85e6fe83 | 1217 | (void)seteuid((Uid_t)euid); |
79072805 LW |
1218 | #else |
1219 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1220 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1221 | #else | |
1222 | #ifdef HAS_SETRESUID | |
1223 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); | |
79072805 LW |
1224 | #else |
1225 | if (euid == uid) /* special case $> = $< */ | |
1226 | setuid(euid); | |
a0d0e21e LW |
1227 | else { |
1228 | euid = (I32)geteuid(); | |
463ee0b2 | 1229 | croak("seteuid() not implemented"); |
a0d0e21e | 1230 | } |
79072805 LW |
1231 | #endif |
1232 | #endif | |
85e6fe83 | 1233 | #endif |
79072805 | 1234 | euid = (I32)geteuid(); |
4633a7c4 | 1235 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1236 | break; |
1237 | case '(': | |
463ee0b2 | 1238 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1239 | if (delaymagic) { |
1240 | delaymagic |= DM_RGID; | |
1241 | break; /* don't do magic till later */ | |
1242 | } | |
1243 | #ifdef HAS_SETRGID | |
85e6fe83 | 1244 | (void)setrgid((Gid_t)gid); |
79072805 LW |
1245 | #else |
1246 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1247 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1248 | #else | |
1249 | #ifdef HAS_SETRESGID | |
1250 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); | |
79072805 LW |
1251 | #else |
1252 | if (gid == egid) /* special case $( = $) */ | |
1253 | (void)setgid(gid); | |
748a9306 LW |
1254 | else { |
1255 | gid = (I32)getgid(); | |
463ee0b2 | 1256 | croak("setrgid() not implemented"); |
748a9306 | 1257 | } |
79072805 LW |
1258 | #endif |
1259 | #endif | |
85e6fe83 | 1260 | #endif |
79072805 | 1261 | gid = (I32)getgid(); |
4633a7c4 | 1262 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1263 | break; |
1264 | case ')': | |
463ee0b2 | 1265 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1266 | if (delaymagic) { |
1267 | delaymagic |= DM_EGID; | |
1268 | break; /* don't do magic till later */ | |
1269 | } | |
1270 | #ifdef HAS_SETEGID | |
85e6fe83 | 1271 | (void)setegid((Gid_t)egid); |
79072805 LW |
1272 | #else |
1273 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1274 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1275 | #else | |
1276 | #ifdef HAS_SETRESGID | |
1277 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); | |
79072805 LW |
1278 | #else |
1279 | if (egid == gid) /* special case $) = $( */ | |
1280 | (void)setgid(egid); | |
748a9306 LW |
1281 | else { |
1282 | egid = (I32)getegid(); | |
463ee0b2 | 1283 | croak("setegid() not implemented"); |
748a9306 | 1284 | } |
79072805 LW |
1285 | #endif |
1286 | #endif | |
85e6fe83 | 1287 | #endif |
79072805 | 1288 | egid = (I32)getegid(); |
4633a7c4 | 1289 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1290 | break; |
1291 | case ':': | |
a0d0e21e | 1292 | chopset = SvPV_force(sv,na); |
79072805 LW |
1293 | break; |
1294 | case '0': | |
1295 | if (!origalen) { | |
1296 | s = origargv[0]; | |
1297 | s += strlen(s); | |
1298 | /* See if all the arguments are contiguous in memory */ | |
1299 | for (i = 1; i < origargc; i++) { | |
1300 | if (origargv[i] == s + 1) | |
1301 | s += strlen(++s); /* this one is ok too */ | |
1302 | } | |
1303 | if (origenviron[0] == s + 1) { /* can grab env area too? */ | |
1304 | my_setenv("NoNeSuCh", Nullch); | |
1305 | /* force copy of environment */ | |
1306 | for (i = 0; origenviron[i]; i++) | |
1307 | if (origenviron[i] == s + 1) | |
1308 | s += strlen(++s); | |
1309 | } | |
1310 | origalen = s - origargv[0]; | |
1311 | } | |
a0d0e21e | 1312 | s = SvPV_force(sv,len); |
8990e307 | 1313 | i = len; |
79072805 LW |
1314 | if (i >= origalen) { |
1315 | i = origalen; | |
1316 | SvCUR_set(sv, i); | |
1317 | *SvEND(sv) = '\0'; | |
1318 | Copy(s, origargv[0], i, char); | |
1319 | } | |
1320 | else { | |
1321 | Copy(s, origargv[0], i, char); | |
1322 | s = origargv[0]+i; | |
1323 | *s++ = '\0'; | |
1324 | while (++i < origalen) | |
8990e307 LW |
1325 | *s++ = ' '; |
1326 | s = origargv[0]+i; | |
ed6116ce | 1327 | for (i = 1; i < origargc; i++) |
8990e307 | 1328 | origargv[i] = Nullch; |
79072805 LW |
1329 | } |
1330 | break; | |
1331 | } | |
1332 | return 0; | |
1333 | } | |
1334 | ||
1335 | I32 | |
1336 | whichsig(sig) | |
1337 | char *sig; | |
1338 | { | |
1339 | register char **sigv; | |
1340 | ||
1341 | for (sigv = sig_name+1; *sigv; sigv++) | |
1342 | if (strEQ(sig,*sigv)) | |
8e07c86e | 1343 | return sig_num[sigv - sig_name]; |
79072805 LW |
1344 | #ifdef SIGCLD |
1345 | if (strEQ(sig,"CHLD")) | |
1346 | return SIGCLD; | |
1347 | #endif | |
1348 | #ifdef SIGCHLD | |
1349 | if (strEQ(sig,"CLD")) | |
1350 | return SIGCHLD; | |
1351 | #endif | |
1352 | return 0; | |
1353 | } | |
1354 | ||
ecfc5424 | 1355 | Signal_t |
79072805 | 1356 | sighandler(sig) |
a0d0e21e | 1357 | int sig; |
79072805 LW |
1358 | { |
1359 | dSP; | |
1360 | GV *gv; | |
a0d0e21e | 1361 | HV *st; |
79072805 LW |
1362 | SV *sv; |
1363 | CV *cv; | |
79072805 | 1364 | AV *oldstack; |
8e07c86e | 1365 | char *signame; |
79072805 LW |
1366 | |
1367 | #ifdef OS2 /* or anybody else who requires SIG_ACK */ | |
1368 | signal(sig, SIG_ACK); | |
1369 | #endif | |
1370 | ||
4633a7c4 | 1371 | signame = sig_name[sig]; |
8e07c86e | 1372 | cv = sv_2cv(*hv_fetch(GvHVn(siggv),signame,strlen(signame), |
a0d0e21e LW |
1373 | TRUE), |
1374 | &st, &gv, TRUE); | |
1375 | if (!cv || !CvROOT(cv) && | |
8e07c86e | 1376 | *signame == 'C' && instr(signame,"LD")) { |
a0d0e21e | 1377 | |
8e07c86e | 1378 | if (signame[1] == 'H') |
a0d0e21e LW |
1379 | cv = sv_2cv(*hv_fetch(GvHVn(siggv),"CLD",3,TRUE), |
1380 | &st, &gv, TRUE); | |
79072805 | 1381 | else |
a0d0e21e LW |
1382 | cv = sv_2cv(*hv_fetch(GvHVn(siggv),"CHLD",4,TRUE), |
1383 | &st, &gv, TRUE); | |
1384 | /* gag */ | |
79072805 | 1385 | } |
a0d0e21e | 1386 | if (!cv || !CvROOT(cv)) { |
79072805 LW |
1387 | if (dowarn) |
1388 | warn("SIG%s handler \"%s\" not defined.\n", | |
8e07c86e | 1389 | signame, GvENAME(gv) ); |
79072805 LW |
1390 | return; |
1391 | } | |
1392 | ||
1393 | oldstack = stack; | |
a0d0e21e LW |
1394 | if (stack != signalstack) |
1395 | AvFILL(signalstack) = 0; | |
79072805 LW |
1396 | SWITCHSTACK(stack, signalstack); |
1397 | ||
8990e307 | 1398 | sv = sv_newmortal(); |
8e07c86e | 1399 | sv_setpv(sv,signame); |
a0d0e21e | 1400 | PUSHMARK(sp); |
79072805 | 1401 | PUSHs(sv); |
79072805 | 1402 | PUTBACK; |
a0d0e21e LW |
1403 | |
1404 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 LW |
1405 | |
1406 | SWITCHSTACK(signalstack, oldstack); | |
79072805 LW |
1407 | |
1408 | return; | |
1409 | } |