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 | ||
88e89b8a | 73 | safefree((void *)mgs); |
c07a80fd | 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; | |
88e89b8a | 213 | I32 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') |
88e89b8a | 238 | if (mg->mg_len >= 0) |
239 | Safefree(mg->mg_ptr); | |
240 | else if (mg->mg_len == HEf_SVKEY) | |
241 | SvREFCNT_dec((SV*)mg->mg_ptr); | |
85e6fe83 | 242 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 243 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
244 | Safefree(mg); |
245 | } | |
246 | SvMAGIC(sv) = 0; | |
247 | return 0; | |
248 | } | |
249 | ||
250 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
251 | #include <signal.h> | |
252 | #endif | |
253 | ||
93a17b20 LW |
254 | U32 |
255 | magic_len(sv, mg) | |
256 | SV *sv; | |
257 | MAGIC *mg; | |
258 | { | |
259 | register I32 paren; | |
260 | register char *s; | |
261 | register I32 i; | |
748a9306 | 262 | char *t; |
93a17b20 LW |
263 | |
264 | switch (*mg->mg_ptr) { | |
265 | case '1': case '2': case '3': case '4': | |
266 | case '5': case '6': case '7': case '8': case '9': case '&': | |
267 | if (curpm) { | |
268 | paren = atoi(mg->mg_ptr); | |
269 | getparen: | |
270 | if (curpm->op_pmregexp && | |
271 | paren <= curpm->op_pmregexp->nparens && | |
748a9306 LW |
272 | (s = curpm->op_pmregexp->startp[paren]) && |
273 | (t = curpm->op_pmregexp->endp[paren]) ) { | |
274 | i = t - s; | |
93a17b20 LW |
275 | if (i >= 0) |
276 | return i; | |
93a17b20 | 277 | } |
93a17b20 | 278 | } |
748a9306 | 279 | return 0; |
93a17b20 LW |
280 | break; |
281 | case '+': | |
282 | if (curpm) { | |
283 | paren = curpm->op_pmregexp->lastparen; | |
a0d0e21e LW |
284 | if (!paren) |
285 | return 0; | |
93a17b20 LW |
286 | goto getparen; |
287 | } | |
748a9306 | 288 | return 0; |
93a17b20 LW |
289 | break; |
290 | case '`': | |
291 | if (curpm) { | |
292 | if (curpm->op_pmregexp && | |
293 | (s = curpm->op_pmregexp->subbeg) ) { | |
294 | i = curpm->op_pmregexp->startp[0] - s; | |
295 | if (i >= 0) | |
296 | return i; | |
93a17b20 | 297 | } |
93a17b20 | 298 | } |
748a9306 | 299 | return 0; |
93a17b20 LW |
300 | case '\'': |
301 | if (curpm) { | |
302 | if (curpm->op_pmregexp && | |
303 | (s = curpm->op_pmregexp->endp[0]) ) { | |
304 | return (STRLEN) (curpm->op_pmregexp->subend - s); | |
305 | } | |
93a17b20 | 306 | } |
748a9306 | 307 | return 0; |
93a17b20 LW |
308 | case ',': |
309 | return (STRLEN)ofslen; | |
310 | case '\\': | |
311 | return (STRLEN)orslen; | |
312 | } | |
313 | magic_get(sv,mg); | |
314 | if (!SvPOK(sv) && SvNIOK(sv)) | |
463ee0b2 | 315 | sv_2pv(sv, &na); |
93a17b20 LW |
316 | if (SvPOK(sv)) |
317 | return SvCUR(sv); | |
318 | return 0; | |
319 | } | |
320 | ||
79072805 LW |
321 | int |
322 | magic_get(sv, mg) | |
323 | SV *sv; | |
324 | MAGIC *mg; | |
325 | { | |
326 | register I32 paren; | |
327 | register char *s; | |
328 | register I32 i; | |
748a9306 | 329 | char *t; |
79072805 LW |
330 | |
331 | switch (*mg->mg_ptr) { | |
748a9306 LW |
332 | case '\001': /* ^A */ |
333 | sv_setsv(sv, bodytarget); | |
334 | break; | |
79072805 LW |
335 | case '\004': /* ^D */ |
336 | sv_setiv(sv,(I32)(debug & 32767)); | |
337 | break; | |
28f23441 | 338 | case '\005': /* ^E */ |
339 | #ifdef VMS | |
340 | { | |
341 | # include <descrip.h> | |
342 | # include <starlet.h> | |
343 | char msg[255]; | |
344 | $DESCRIPTOR(msgdsc,msg); | |
345 | sv_setnv(sv,(double)vaxc$errno); | |
346 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) | |
347 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
348 | else | |
349 | sv_setpv(sv,""); | |
350 | } | |
351 | #else | |
88e89b8a | 352 | #ifdef OS2 |
353 | sv_setnv(sv,(double)Perl_rc); | |
354 | sv_setpv(sv, os2error(Perl_rc)); | |
355 | #else | |
28f23441 | 356 | sv_setnv(sv,(double)errno); |
357 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
358 | #endif | |
88e89b8a | 359 | #endif |
28f23441 | 360 | SvNOK_on(sv); /* what a wonderful hack! */ |
361 | break; | |
79072805 LW |
362 | case '\006': /* ^F */ |
363 | sv_setiv(sv,(I32)maxsysfd); | |
364 | break; | |
a0d0e21e LW |
365 | case '\010': /* ^H */ |
366 | sv_setiv(sv,(I32)hints); | |
367 | break; | |
79072805 LW |
368 | case '\t': /* ^I */ |
369 | if (inplace) | |
370 | sv_setpv(sv, inplace); | |
371 | else | |
372 | sv_setsv(sv,&sv_undef); | |
373 | break; | |
28f23441 | 374 | case '\017': /* ^O */ |
375 | sv_setpv(sv,osname); | |
376 | break; | |
79072805 LW |
377 | case '\020': /* ^P */ |
378 | sv_setiv(sv,(I32)perldb); | |
379 | break; | |
380 | case '\024': /* ^T */ | |
88e89b8a | 381 | #ifdef BIG_TIME |
382 | sv_setnv(sv,basetime); | |
383 | #else | |
79072805 | 384 | sv_setiv(sv,(I32)basetime); |
88e89b8a | 385 | #endif |
79072805 LW |
386 | break; |
387 | case '\027': /* ^W */ | |
388 | sv_setiv(sv,(I32)dowarn); | |
389 | break; | |
390 | case '1': case '2': case '3': case '4': | |
391 | case '5': case '6': case '7': case '8': case '9': case '&': | |
392 | if (curpm) { | |
88e89b8a | 393 | paren = atoi(GvENAME((GV*)mg->mg_obj)); |
79072805 LW |
394 | getparen: |
395 | if (curpm->op_pmregexp && | |
396 | paren <= curpm->op_pmregexp->nparens && | |
a0d0e21e | 397 | (s = curpm->op_pmregexp->startp[paren]) && |
748a9306 LW |
398 | (t = curpm->op_pmregexp->endp[paren]) ) { |
399 | i = t - s; | |
400 | if (i >= 0) { | |
401 | MAGIC *tmg; | |
79072805 | 402 | sv_setpvn(sv,s,i); |
748a9306 LW |
403 | if (tainting && (tmg = mg_find(sv,'t'))) |
404 | tmg->mg_len = 0; /* guarantee $1 untainted */ | |
405 | break; | |
406 | } | |
79072805 | 407 | } |
79072805 | 408 | } |
748a9306 | 409 | sv_setsv(sv,&sv_undef); |
79072805 LW |
410 | break; |
411 | case '+': | |
412 | if (curpm) { | |
413 | paren = curpm->op_pmregexp->lastparen; | |
a0d0e21e LW |
414 | if (paren) |
415 | goto getparen; | |
79072805 | 416 | } |
748a9306 | 417 | sv_setsv(sv,&sv_undef); |
79072805 LW |
418 | break; |
419 | case '`': | |
420 | if (curpm) { | |
421 | if (curpm->op_pmregexp && | |
422 | (s = curpm->op_pmregexp->subbeg) ) { | |
423 | i = curpm->op_pmregexp->startp[0] - s; | |
748a9306 | 424 | if (i >= 0) { |
79072805 | 425 | sv_setpvn(sv,s,i); |
748a9306 LW |
426 | break; |
427 | } | |
79072805 | 428 | } |
79072805 | 429 | } |
748a9306 | 430 | sv_setsv(sv,&sv_undef); |
79072805 LW |
431 | break; |
432 | case '\'': | |
433 | if (curpm) { | |
434 | if (curpm->op_pmregexp && | |
435 | (s = curpm->op_pmregexp->endp[0]) ) { | |
436 | sv_setpvn(sv,s, curpm->op_pmregexp->subend - s); | |
748a9306 | 437 | break; |
79072805 | 438 | } |
79072805 | 439 | } |
748a9306 | 440 | sv_setsv(sv,&sv_undef); |
79072805 LW |
441 | break; |
442 | case '.': | |
443 | #ifndef lint | |
a0d0e21e | 444 | if (GvIO(last_in_gv)) { |
8990e307 | 445 | sv_setiv(sv,(I32)IoLINES(GvIO(last_in_gv))); |
79072805 LW |
446 | } |
447 | #endif | |
448 | break; | |
449 | case '?': | |
450 | sv_setiv(sv,(I32)statusvalue); | |
451 | break; | |
452 | case '^': | |
a0d0e21e | 453 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 LW |
454 | if (s) |
455 | sv_setpv(sv,s); | |
456 | else { | |
457 | sv_setpv(sv,GvENAME(defoutgv)); | |
458 | sv_catpv(sv,"_TOP"); | |
459 | } | |
460 | break; | |
461 | case '~': | |
a0d0e21e | 462 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 LW |
463 | if (!s) |
464 | s = GvENAME(defoutgv); | |
465 | sv_setpv(sv,s); | |
466 | break; | |
467 | #ifndef lint | |
468 | case '=': | |
a0d0e21e | 469 | sv_setiv(sv,(I32)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 LW |
470 | break; |
471 | case '-': | |
a0d0e21e | 472 | sv_setiv(sv,(I32)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 LW |
473 | break; |
474 | case '%': | |
a0d0e21e | 475 | sv_setiv(sv,(I32)IoPAGE(GvIOp(defoutgv))); |
79072805 LW |
476 | break; |
477 | #endif | |
478 | case ':': | |
479 | break; | |
480 | case '/': | |
481 | break; | |
482 | case '[': | |
a0d0e21e | 483 | sv_setiv(sv,(I32)curcop->cop_arybase); |
79072805 LW |
484 | break; |
485 | case '|': | |
a0d0e21e | 486 | sv_setiv(sv, (IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
487 | break; |
488 | case ',': | |
489 | sv_setpvn(sv,ofs,ofslen); | |
490 | break; | |
491 | case '\\': | |
492 | sv_setpvn(sv,ors,orslen); | |
493 | break; | |
494 | case '#': | |
495 | sv_setpv(sv,ofmt); | |
496 | break; | |
497 | case '!': | |
a5f75d66 AD |
498 | #ifdef VMS |
499 | sv_setnv(sv,(double)((errno == EVMSERR) ? vaxc$errno : errno)); | |
88e89b8a | 500 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 501 | #else |
88e89b8a | 502 | { |
503 | int saveerrno = errno; | |
79072805 | 504 | sv_setnv(sv,(double)errno); |
88e89b8a | 505 | #ifdef OS2 |
506 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
507 | else | |
a5f75d66 | 508 | #endif |
2304df62 | 509 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 510 | errno = saveerrno; |
511 | } | |
512 | #endif | |
79072805 LW |
513 | SvNOK_on(sv); /* what a wonderful hack! */ |
514 | break; | |
515 | case '<': | |
516 | sv_setiv(sv,(I32)uid); | |
517 | break; | |
518 | case '>': | |
519 | sv_setiv(sv,(I32)euid); | |
520 | break; | |
521 | case '(': | |
522 | s = buf; | |
523 | (void)sprintf(s,"%d",(int)gid); | |
524 | goto add_groups; | |
525 | case ')': | |
526 | s = buf; | |
527 | (void)sprintf(s,"%d",(int)egid); | |
528 | add_groups: | |
529 | while (*s) s++; | |
530 | #ifdef HAS_GETGROUPS | |
531 | #ifndef NGROUPS | |
532 | #define NGROUPS 32 | |
533 | #endif | |
534 | { | |
a0d0e21e | 535 | Groups_t gary[NGROUPS]; |
79072805 LW |
536 | |
537 | i = getgroups(NGROUPS,gary); | |
538 | while (--i >= 0) { | |
539 | (void)sprintf(s," %ld", (long)gary[i]); | |
540 | while (*s) s++; | |
541 | } | |
542 | } | |
543 | #endif | |
544 | sv_setpv(sv,buf); | |
545 | break; | |
546 | case '*': | |
547 | break; | |
548 | case '0': | |
549 | break; | |
550 | } | |
a0d0e21e | 551 | return 0; |
79072805 LW |
552 | } |
553 | ||
554 | int | |
555 | magic_getuvar(sv, mg) | |
556 | SV *sv; | |
557 | MAGIC *mg; | |
558 | { | |
559 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
560 | ||
561 | if (uf && uf->uf_val) | |
562 | (*uf->uf_val)(uf->uf_index, sv); | |
563 | return 0; | |
564 | } | |
565 | ||
566 | int | |
567 | magic_setenv(sv,mg) | |
568 | SV* sv; | |
569 | MAGIC* mg; | |
570 | { | |
571 | register char *s; | |
88e89b8a | 572 | char *ptr; |
a0d0e21e LW |
573 | STRLEN len; |
574 | I32 i; | |
575 | s = SvPV(sv,len); | |
88e89b8a | 576 | ptr = (mg->mg_len == HEf_SVKEY) ? SvPV((SV*)mg->mg_ptr, na) : mg->mg_ptr; |
577 | my_setenv(ptr, s); | |
a0d0e21e LW |
578 | #ifdef DYNAMIC_ENV_FETCH |
579 | /* We just undefd an environment var. Is a replacement */ | |
580 | /* waiting in the wings? */ | |
581 | if (!len) { | |
88e89b8a | 582 | HE *envhe; |
583 | if (envhe = hv_fetch_ent(GvHVn(envgv),HeSVKEY((HE*)(mg->mg_ptr)),FALSE,0)) | |
584 | s = SvPV(HeVAL(envhe),len); | |
a0d0e21e LW |
585 | } |
586 | #endif | |
79072805 LW |
587 | /* And you'll never guess what the dog had */ |
588 | /* in its mouth... */ | |
463ee0b2 | 589 | if (tainting) { |
88e89b8a | 590 | if (s && strEQ(ptr,"PATH")) { |
a0d0e21e | 591 | char *strend = s + len; |
463ee0b2 LW |
592 | |
593 | while (s < strend) { | |
594 | s = cpytill(tokenbuf,s,strend,':',&i); | |
595 | s++; | |
596 | if (*tokenbuf != '/' | |
a0d0e21e | 597 | || (Stat(tokenbuf,&statbuf) && (statbuf.st_mode & 2)) ) |
8990e307 | 598 | MgTAINTEDDIR_on(mg); |
463ee0b2 | 599 | } |
79072805 LW |
600 | } |
601 | } | |
79072805 LW |
602 | return 0; |
603 | } | |
604 | ||
605 | int | |
85e6fe83 LW |
606 | magic_clearenv(sv,mg) |
607 | SV* sv; | |
608 | MAGIC* mg; | |
609 | { | |
88e89b8a | 610 | my_setenv(((mg->mg_len == HEf_SVKEY) ? |
611 | SvPV((SV*)mg->mg_ptr, na) : mg->mg_ptr),Nullch); | |
85e6fe83 LW |
612 | return 0; |
613 | } | |
614 | ||
3d37d572 | 615 | #ifdef HAS_SIGACTION |
616 | /* set up reliable signal() clone */ | |
617 | ||
618 | typedef void (*Sigfunc) _((int)); | |
619 | ||
620 | static | |
621 | Sigfunc rsignal(signo,handler) | |
622 | int signo; | |
623 | Sigfunc handler; | |
624 | { | |
625 | struct sigaction act,oact; | |
626 | ||
627 | act.sa_handler = handler; | |
628 | sigemptyset(&act.sa_mask); | |
629 | act.sa_flags = 0; | |
3d37d572 | 630 | #ifdef SA_RESTART |
88e89b8a | 631 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ |
3d37d572 | 632 | #endif |
3d37d572 | 633 | if (sigaction(signo, &act, &oact) < 0) |
634 | return(SIG_ERR); | |
635 | else | |
636 | return(oact.sa_handler); | |
637 | } | |
638 | ||
639 | #else | |
640 | ||
641 | /* ah well, so much for reliability */ | |
642 | ||
643 | #define rsignal(x,y) signal(x,y) | |
644 | ||
645 | #endif | |
646 | ||
88e89b8a | 647 | static sig_trapped; |
648 | static | |
649 | Signal_t | |
650 | sig_trap(signo) | |
651 | int signo; | |
652 | { | |
653 | sig_trapped++; | |
654 | } | |
655 | int | |
656 | magic_getsig(sv,mg) | |
657 | SV* sv; | |
658 | MAGIC* mg; | |
659 | { | |
660 | I32 i; | |
661 | /* Are we fetching a signal entry? */ | |
662 | i = whichsig(mg->mg_ptr); | |
663 | if (i) { | |
664 | if(psig_ptr[i]) | |
665 | sv_setsv(sv,psig_ptr[i]); | |
666 | else { | |
667 | void (*origsig)(int); | |
668 | /* get signal state without losing signals */ | |
669 | sig_trapped=0; | |
670 | origsig = rsignal(i,sig_trap); | |
671 | rsignal(i,origsig); | |
672 | if(sig_trapped) | |
673 | kill(getpid(),i); | |
674 | /* cache state so we don't fetch it again */ | |
675 | if(origsig == SIG_IGN) | |
676 | sv_setpv(sv,"IGNORE"); | |
677 | else | |
678 | sv_setsv(sv,&sv_undef); | |
679 | psig_ptr[i] = SvREFCNT_inc(sv); | |
680 | SvTEMP_off(sv); | |
681 | } | |
682 | } | |
683 | return 0; | |
684 | } | |
685 | int | |
686 | magic_clearsig(sv,mg) | |
687 | SV* sv; | |
688 | MAGIC* mg; | |
689 | { | |
690 | I32 i; | |
691 | /* Are we clearing a signal entry? */ | |
692 | i = whichsig(mg->mg_ptr); | |
693 | if (i) { | |
694 | if(psig_ptr[i]) { | |
695 | SvREFCNT_dec(psig_ptr[i]); | |
696 | psig_ptr[i]=0; | |
697 | } | |
698 | if(psig_name[i]) { | |
699 | SvREFCNT_dec(psig_name[i]); | |
700 | psig_name[i]=0; | |
701 | } | |
702 | } | |
703 | return 0; | |
704 | } | |
3d37d572 | 705 | |
85e6fe83 | 706 | int |
79072805 LW |
707 | magic_setsig(sv,mg) |
708 | SV* sv; | |
709 | MAGIC* mg; | |
710 | { | |
711 | register char *s; | |
712 | I32 i; | |
748a9306 | 713 | SV** svp; |
a0d0e21e | 714 | |
88e89b8a | 715 | s = (mg->mg_len == HEf_SVKEY) ? SvPV((SV*)mg->mg_ptr, na) : mg->mg_ptr; |
748a9306 LW |
716 | if (*s == '_') { |
717 | if (strEQ(s,"__DIE__")) | |
718 | svp = &diehook; | |
719 | else if (strEQ(s,"__WARN__")) | |
720 | svp = &warnhook; | |
721 | else if (strEQ(s,"__PARSE__")) | |
722 | svp = &parsehook; | |
723 | else | |
724 | croak("No such hook: %s", s); | |
725 | i = 0; | |
4633a7c4 LW |
726 | if (*svp) { |
727 | SvREFCNT_dec(*svp); | |
728 | *svp = 0; | |
729 | } | |
748a9306 LW |
730 | } |
731 | else { | |
732 | i = whichsig(s); /* ...no, a brick */ | |
733 | if (!i) { | |
734 | if (dowarn || strEQ(s,"ALARM")) | |
735 | warn("No such signal: SIG%s", s); | |
736 | return 0; | |
737 | } | |
88e89b8a | 738 | if(psig_ptr[i]) |
739 | SvREFCNT_dec(psig_ptr[i]); | |
740 | psig_ptr[i] = SvREFCNT_inc(sv); | |
741 | if(psig_name[i]) | |
742 | SvREFCNT_dec(psig_name[i]); | |
743 | psig_name[i] = newSVpv(mg->mg_ptr,strlen(mg->mg_ptr)); | |
744 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ | |
745 | SvREADONLY_on(psig_name[i]); | |
748a9306 | 746 | } |
a0d0e21e | 747 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 748 | if (i) |
3d37d572 | 749 | (void)rsignal(i,sighandler); |
748a9306 LW |
750 | else |
751 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
752 | return 0; |
753 | } | |
754 | s = SvPV_force(sv,na); | |
748a9306 LW |
755 | if (strEQ(s,"IGNORE")) { |
756 | if (i) | |
3d37d572 | 757 | (void)rsignal(i,SIG_IGN); |
748a9306 LW |
758 | else |
759 | *svp = 0; | |
760 | } | |
761 | else if (strEQ(s,"DEFAULT") || !*s) { | |
762 | if (i) | |
3d37d572 | 763 | (void)rsignal(i,SIG_DFL); |
748a9306 LW |
764 | else |
765 | *svp = 0; | |
766 | } | |
79072805 | 767 | else { |
2304df62 AD |
768 | if (!strchr(s,':') && !strchr(s,'\'')) { |
769 | sprintf(tokenbuf, "main::%s",s); | |
79072805 LW |
770 | sv_setpv(sv,tokenbuf); |
771 | } | |
748a9306 | 772 | if (i) |
3d37d572 | 773 | (void)rsignal(i,sighandler); |
748a9306 LW |
774 | else |
775 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
776 | } |
777 | return 0; | |
778 | } | |
779 | ||
780 | int | |
463ee0b2 | 781 | magic_setisa(sv,mg) |
79072805 LW |
782 | SV* sv; |
783 | MAGIC* mg; | |
784 | { | |
463ee0b2 LW |
785 | sub_generation++; |
786 | return 0; | |
787 | } | |
788 | ||
a0d0e21e LW |
789 | #ifdef OVERLOAD |
790 | ||
463ee0b2 | 791 | int |
a0d0e21e | 792 | magic_setamagic(sv,mg) |
463ee0b2 LW |
793 | SV* sv; |
794 | MAGIC* mg; | |
795 | { | |
a0d0e21e LW |
796 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
797 | amagic_generation++; | |
463ee0b2 | 798 | |
a0d0e21e LW |
799 | return 0; |
800 | } | |
801 | #endif /* OVERLOAD */ | |
463ee0b2 | 802 | |
a0d0e21e LW |
803 | static int |
804 | magic_methpack(sv,mg,meth) | |
805 | SV* sv; | |
806 | MAGIC* mg; | |
807 | char *meth; | |
808 | { | |
809 | dSP; | |
463ee0b2 | 810 | |
a0d0e21e LW |
811 | ENTER; |
812 | SAVETMPS; | |
813 | PUSHMARK(sp); | |
814 | EXTEND(sp, 2); | |
815 | PUSHs(mg->mg_obj); | |
88e89b8a | 816 | if (mg->mg_ptr) { |
817 | if (mg->mg_len >= 0) | |
818 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
819 | else if (mg->mg_len == HEf_SVKEY) | |
820 | PUSHs((SV*)mg->mg_ptr); | |
821 | } | |
a0d0e21e LW |
822 | else if (mg->mg_type == 'p') |
823 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
824 | PUTBACK; |
825 | ||
a0d0e21e LW |
826 | if (perl_call_method(meth, G_SCALAR)) |
827 | sv_setsv(sv, *stack_sp--); | |
463ee0b2 | 828 | |
a0d0e21e LW |
829 | FREETMPS; |
830 | LEAVE; | |
831 | return 0; | |
832 | } | |
463ee0b2 | 833 | |
a0d0e21e LW |
834 | int |
835 | magic_getpack(sv,mg) | |
836 | SV* sv; | |
837 | MAGIC* mg; | |
838 | { | |
839 | magic_methpack(sv,mg,"FETCH"); | |
840 | if (mg->mg_ptr) | |
841 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
842 | return 0; |
843 | } | |
844 | ||
845 | int | |
846 | magic_setpack(sv,mg) | |
847 | SV* sv; | |
848 | MAGIC* mg; | |
849 | { | |
463ee0b2 | 850 | dSP; |
463ee0b2 | 851 | |
a0d0e21e LW |
852 | PUSHMARK(sp); |
853 | EXTEND(sp, 3); | |
854 | PUSHs(mg->mg_obj); | |
88e89b8a | 855 | if (mg->mg_ptr) { |
856 | if (mg->mg_len >= 0) | |
857 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
858 | else if (mg->mg_len == HEf_SVKEY) | |
859 | PUSHs((SV*)mg->mg_ptr); | |
860 | } | |
a0d0e21e LW |
861 | else if (mg->mg_type == 'p') |
862 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
863 | PUSHs(sv); |
864 | PUTBACK; | |
865 | ||
a0d0e21e | 866 | perl_call_method("STORE", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
867 | |
868 | return 0; | |
869 | } | |
870 | ||
871 | int | |
872 | magic_clearpack(sv,mg) | |
873 | SV* sv; | |
874 | MAGIC* mg; | |
875 | { | |
a0d0e21e LW |
876 | return magic_methpack(sv,mg,"DELETE"); |
877 | } | |
463ee0b2 | 878 | |
a0d0e21e LW |
879 | int magic_wipepack(sv,mg) |
880 | SV* sv; | |
881 | MAGIC* mg; | |
882 | { | |
883 | dSP; | |
463ee0b2 | 884 | |
a0d0e21e LW |
885 | PUSHMARK(sp); |
886 | XPUSHs(mg->mg_obj); | |
463ee0b2 | 887 | PUTBACK; |
463ee0b2 | 888 | |
a0d0e21e | 889 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
890 | |
891 | return 0; | |
892 | } | |
893 | ||
894 | int | |
895 | magic_nextpack(sv,mg,key) | |
896 | SV* sv; | |
897 | MAGIC* mg; | |
898 | SV* key; | |
899 | { | |
463ee0b2 | 900 | dSP; |
a0d0e21e | 901 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
902 | |
903 | ENTER; | |
a0d0e21e LW |
904 | SAVETMPS; |
905 | PUSHMARK(sp); | |
906 | EXTEND(sp, 2); | |
907 | PUSHs(mg->mg_obj); | |
463ee0b2 LW |
908 | if (SvOK(key)) |
909 | PUSHs(key); | |
910 | PUTBACK; | |
911 | ||
a0d0e21e LW |
912 | if (perl_call_method(meth, G_SCALAR)) |
913 | sv_setsv(key, *stack_sp--); | |
463ee0b2 | 914 | |
a0d0e21e LW |
915 | FREETMPS; |
916 | LEAVE; | |
79072805 LW |
917 | return 0; |
918 | } | |
919 | ||
920 | int | |
a0d0e21e LW |
921 | magic_existspack(sv,mg) |
922 | SV* sv; | |
923 | MAGIC* mg; | |
924 | { | |
925 | return magic_methpack(sv,mg,"EXISTS"); | |
926 | } | |
927 | ||
928 | int | |
79072805 LW |
929 | magic_setdbline(sv,mg) |
930 | SV* sv; | |
931 | MAGIC* mg; | |
932 | { | |
933 | OP *o; | |
934 | I32 i; | |
935 | GV* gv; | |
936 | SV** svp; | |
937 | ||
938 | gv = DBline; | |
939 | i = SvTRUE(sv); | |
940 | svp = av_fetch(GvAV(gv),atoi(mg->mg_ptr), FALSE); | |
8990e307 | 941 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 942 | o->op_private = i; |
79072805 LW |
943 | else |
944 | warn("Can't break at that line\n"); | |
945 | return 0; | |
946 | } | |
947 | ||
948 | int | |
949 | magic_getarylen(sv,mg) | |
950 | SV* sv; | |
951 | MAGIC* mg; | |
952 | { | |
a0d0e21e | 953 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 LW |
954 | return 0; |
955 | } | |
956 | ||
957 | int | |
958 | magic_setarylen(sv,mg) | |
959 | SV* sv; | |
960 | MAGIC* mg; | |
961 | { | |
a0d0e21e LW |
962 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
963 | return 0; | |
964 | } | |
965 | ||
966 | int | |
967 | magic_getpos(sv,mg) | |
968 | SV* sv; | |
969 | MAGIC* mg; | |
970 | { | |
971 | SV* lsv = LvTARG(sv); | |
972 | ||
973 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
974 | mg = mg_find(lsv, 'g'); | |
975 | if (mg && mg->mg_len >= 0) { | |
976 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); | |
977 | return 0; | |
978 | } | |
979 | } | |
980 | (void)SvOK_off(sv); | |
981 | return 0; | |
982 | } | |
983 | ||
984 | int | |
985 | magic_setpos(sv,mg) | |
986 | SV* sv; | |
987 | MAGIC* mg; | |
988 | { | |
989 | SV* lsv = LvTARG(sv); | |
990 | SSize_t pos; | |
991 | STRLEN len; | |
992 | ||
993 | mg = 0; | |
994 | ||
995 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
996 | mg = mg_find(lsv, 'g'); | |
997 | if (!mg) { | |
998 | if (!SvOK(sv)) | |
999 | return 0; | |
1000 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
1001 | mg = mg_find(lsv, 'g'); | |
1002 | } | |
1003 | else if (!SvOK(sv)) { | |
1004 | mg->mg_len = -1; | |
1005 | return 0; | |
1006 | } | |
1007 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1008 | ||
1009 | pos = SvIV(sv) - curcop->cop_arybase; | |
1010 | if (pos < 0) { | |
1011 | pos += len; | |
1012 | if (pos < 0) | |
1013 | pos = 0; | |
1014 | } | |
1015 | else if (pos > len) | |
1016 | pos = len; | |
1017 | mg->mg_len = pos; | |
1018 | ||
79072805 LW |
1019 | return 0; |
1020 | } | |
1021 | ||
1022 | int | |
1023 | magic_getglob(sv,mg) | |
1024 | SV* sv; | |
1025 | MAGIC* mg; | |
1026 | { | |
1027 | gv_efullname(sv,((GV*)sv));/* a gv value, be nice */ | |
1028 | return 0; | |
1029 | } | |
1030 | ||
1031 | int | |
1032 | magic_setglob(sv,mg) | |
1033 | SV* sv; | |
1034 | MAGIC* mg; | |
1035 | { | |
1036 | register char *s; | |
1037 | GV* gv; | |
1038 | ||
1039 | if (!SvOK(sv)) | |
1040 | return 0; | |
463ee0b2 | 1041 | s = SvPV(sv, na); |
79072805 LW |
1042 | if (*s == '*' && s[1]) |
1043 | s++; | |
85e6fe83 | 1044 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1045 | if (sv == (SV*)gv) |
1046 | return 0; | |
1047 | if (GvGP(sv)) | |
88e89b8a | 1048 | gp_free((GV*)sv); |
79072805 LW |
1049 | GvGP(sv) = gp_ref(GvGP(gv)); |
1050 | if (!GvAV(gv)) | |
1051 | gv_AVadd(gv); | |
1052 | if (!GvHV(gv)) | |
1053 | gv_HVadd(gv); | |
a0d0e21e LW |
1054 | if (!GvIOp(gv)) |
1055 | GvIOp(gv) = newIO(); | |
79072805 LW |
1056 | return 0; |
1057 | } | |
1058 | ||
1059 | int | |
1060 | magic_setsubstr(sv,mg) | |
1061 | SV* sv; | |
1062 | MAGIC* mg; | |
1063 | { | |
8990e307 LW |
1064 | STRLEN len; |
1065 | char *tmps = SvPV(sv,len); | |
1066 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1067 | return 0; |
1068 | } | |
1069 | ||
1070 | int | |
463ee0b2 LW |
1071 | magic_gettaint(sv,mg) |
1072 | SV* sv; | |
1073 | MAGIC* mg; | |
1074 | { | |
748a9306 LW |
1075 | if (mg->mg_len & 1) |
1076 | tainted = TRUE; | |
1077 | else if (mg->mg_len & 2 && mg->mg_obj == sv) /* kludge */ | |
1078 | tainted = TRUE; | |
463ee0b2 LW |
1079 | return 0; |
1080 | } | |
1081 | ||
1082 | int | |
1083 | magic_settaint(sv,mg) | |
1084 | SV* sv; | |
1085 | MAGIC* mg; | |
1086 | { | |
748a9306 LW |
1087 | if (localizing) { |
1088 | if (localizing == 1) | |
1089 | mg->mg_len <<= 1; | |
1090 | else | |
1091 | mg->mg_len >>= 1; | |
a0d0e21e | 1092 | } |
748a9306 LW |
1093 | else if (tainted) |
1094 | mg->mg_len |= 1; | |
1095 | else | |
1096 | mg->mg_len &= ~1; | |
463ee0b2 LW |
1097 | return 0; |
1098 | } | |
1099 | ||
1100 | int | |
79072805 LW |
1101 | magic_setvec(sv,mg) |
1102 | SV* sv; | |
1103 | MAGIC* mg; | |
1104 | { | |
1105 | do_vecset(sv); /* XXX slurp this routine */ | |
1106 | return 0; | |
1107 | } | |
1108 | ||
1109 | int | |
93a17b20 LW |
1110 | magic_setmglob(sv,mg) |
1111 | SV* sv; | |
1112 | MAGIC* mg; | |
1113 | { | |
a0d0e21e | 1114 | mg->mg_len = -1; |
c6496cc7 | 1115 | SvSCREAM_off(sv); |
93a17b20 LW |
1116 | return 0; |
1117 | } | |
1118 | ||
1119 | int | |
79072805 LW |
1120 | magic_setbm(sv,mg) |
1121 | SV* sv; | |
1122 | MAGIC* mg; | |
1123 | { | |
463ee0b2 | 1124 | sv_unmagic(sv, 'B'); |
79072805 LW |
1125 | SvVALID_off(sv); |
1126 | return 0; | |
1127 | } | |
1128 | ||
1129 | int | |
1130 | magic_setuvar(sv,mg) | |
1131 | SV* sv; | |
1132 | MAGIC* mg; | |
1133 | { | |
1134 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1135 | ||
1136 | if (uf && uf->uf_set) | |
1137 | (*uf->uf_set)(uf->uf_index, sv); | |
1138 | return 0; | |
1139 | } | |
1140 | ||
1141 | int | |
1142 | magic_set(sv,mg) | |
1143 | SV* sv; | |
1144 | MAGIC* mg; | |
1145 | { | |
1146 | register char *s; | |
1147 | I32 i; | |
8990e307 | 1148 | STRLEN len; |
79072805 | 1149 | switch (*mg->mg_ptr) { |
748a9306 LW |
1150 | case '\001': /* ^A */ |
1151 | sv_setsv(bodytarget, sv); | |
1152 | break; | |
79072805 | 1153 | case '\004': /* ^D */ |
8990e307 | 1154 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1155 | DEBUG_x(dump_all()); |
1156 | break; | |
28f23441 | 1157 | case '\005': /* ^E */ |
1158 | #ifdef VMS | |
1159 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1160 | #else | |
1161 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv),4); /* will anyone ever use this? */ | |
1162 | #endif | |
1163 | break; | |
79072805 | 1164 | case '\006': /* ^F */ |
463ee0b2 | 1165 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1166 | break; |
a0d0e21e LW |
1167 | case '\010': /* ^H */ |
1168 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1169 | break; | |
79072805 LW |
1170 | case '\t': /* ^I */ |
1171 | if (inplace) | |
1172 | Safefree(inplace); | |
1173 | if (SvOK(sv)) | |
a0d0e21e | 1174 | inplace = savepv(SvPV(sv,na)); |
79072805 LW |
1175 | else |
1176 | inplace = Nullch; | |
1177 | break; | |
28f23441 | 1178 | case '\017': /* ^O */ |
1179 | if (osname) | |
1180 | Safefree(osname); | |
1181 | if (SvOK(sv)) | |
1182 | osname = savepv(SvPV(sv,na)); | |
1183 | else | |
1184 | osname = Nullch; | |
1185 | break; | |
79072805 | 1186 | case '\020': /* ^P */ |
463ee0b2 | 1187 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1188 | if (i != perldb) { |
1189 | if (perldb) | |
1190 | oldlastpm = curpm; | |
1191 | else | |
1192 | curpm = oldlastpm; | |
1193 | } | |
1194 | perldb = i; | |
1195 | break; | |
1196 | case '\024': /* ^T */ | |
88e89b8a | 1197 | #ifdef BIG_TIME |
1198 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); | |
1199 | #else | |
85e6fe83 | 1200 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1201 | #endif |
79072805 LW |
1202 | break; |
1203 | case '\027': /* ^W */ | |
463ee0b2 | 1204 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1205 | break; |
1206 | case '.': | |
748a9306 LW |
1207 | if (localizing) { |
1208 | if (localizing == 1) | |
1209 | save_sptr((SV**)&last_in_gv); | |
1210 | } | |
88e89b8a | 1211 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e | 1212 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 LW |
1213 | break; |
1214 | case '^': | |
a0d0e21e LW |
1215 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1216 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1217 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1218 | break; |
1219 | case '~': | |
a0d0e21e LW |
1220 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1221 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1222 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1223 | break; |
1224 | case '=': | |
a0d0e21e | 1225 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1226 | break; |
1227 | case '-': | |
a0d0e21e LW |
1228 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1229 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) | |
1230 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; | |
79072805 LW |
1231 | break; |
1232 | case '%': | |
a0d0e21e | 1233 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1234 | break; |
1235 | case '|': | |
a0d0e21e | 1236 | IoFLAGS(GvIOp(defoutgv)) &= ~IOf_FLUSH; |
463ee0b2 | 1237 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) != 0) { |
a0d0e21e | 1238 | IoFLAGS(GvIOp(defoutgv)) |= IOf_FLUSH; |
79072805 LW |
1239 | } |
1240 | break; | |
1241 | case '*': | |
463ee0b2 | 1242 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1243 | multiline = (i != 0); |
1244 | break; | |
1245 | case '/': | |
c07a80fd | 1246 | SvREFCNT_dec(nrs); |
1247 | nrs = newSVsv(sv); | |
1248 | SvREFCNT_dec(rs); | |
1249 | rs = SvREFCNT_inc(nrs); | |
79072805 LW |
1250 | break; |
1251 | case '\\': | |
1252 | if (ors) | |
1253 | Safefree(ors); | |
a0d0e21e | 1254 | ors = savepv(SvPV(sv,orslen)); |
79072805 LW |
1255 | break; |
1256 | case ',': | |
1257 | if (ofs) | |
1258 | Safefree(ofs); | |
a0d0e21e | 1259 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 LW |
1260 | break; |
1261 | case '#': | |
1262 | if (ofmt) | |
1263 | Safefree(ofmt); | |
a0d0e21e | 1264 | ofmt = savepv(SvPV(sv,na)); |
79072805 LW |
1265 | break; |
1266 | case '[': | |
a0d0e21e | 1267 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1268 | break; |
1269 | case '?': | |
748a9306 | 1270 | statusvalue = FIXSTATUS(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1271 | break; |
1272 | case '!': | |
28f23441 | 1273 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv),SvIV(sv) == EVMSERR ? 4 : vaxc$errno); /* will anyone ever use this? */ |
79072805 LW |
1274 | break; |
1275 | case '<': | |
463ee0b2 | 1276 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1277 | if (delaymagic) { |
1278 | delaymagic |= DM_RUID; | |
1279 | break; /* don't do magic till later */ | |
1280 | } | |
1281 | #ifdef HAS_SETRUID | |
85e6fe83 | 1282 | (void)setruid((Uid_t)uid); |
79072805 LW |
1283 | #else |
1284 | #ifdef HAS_SETREUID | |
85e6fe83 | 1285 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 | 1286 | #else |
85e6fe83 LW |
1287 | #ifdef HAS_SETRESUID |
1288 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); | |
79072805 LW |
1289 | #else |
1290 | if (uid == euid) /* special case $< = $> */ | |
1291 | (void)setuid(uid); | |
a0d0e21e LW |
1292 | else { |
1293 | uid = (I32)getuid(); | |
463ee0b2 | 1294 | croak("setruid() not implemented"); |
a0d0e21e | 1295 | } |
79072805 LW |
1296 | #endif |
1297 | #endif | |
85e6fe83 | 1298 | #endif |
748a9306 | 1299 | uid = (I32)getuid(); |
4633a7c4 | 1300 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1301 | break; |
1302 | case '>': | |
463ee0b2 | 1303 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1304 | if (delaymagic) { |
1305 | delaymagic |= DM_EUID; | |
1306 | break; /* don't do magic till later */ | |
1307 | } | |
1308 | #ifdef HAS_SETEUID | |
85e6fe83 | 1309 | (void)seteuid((Uid_t)euid); |
79072805 LW |
1310 | #else |
1311 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1312 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1313 | #else | |
1314 | #ifdef HAS_SETRESUID | |
1315 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); | |
79072805 LW |
1316 | #else |
1317 | if (euid == uid) /* special case $> = $< */ | |
1318 | setuid(euid); | |
a0d0e21e LW |
1319 | else { |
1320 | euid = (I32)geteuid(); | |
463ee0b2 | 1321 | croak("seteuid() not implemented"); |
a0d0e21e | 1322 | } |
79072805 LW |
1323 | #endif |
1324 | #endif | |
85e6fe83 | 1325 | #endif |
79072805 | 1326 | euid = (I32)geteuid(); |
4633a7c4 | 1327 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1328 | break; |
1329 | case '(': | |
463ee0b2 | 1330 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1331 | if (delaymagic) { |
1332 | delaymagic |= DM_RGID; | |
1333 | break; /* don't do magic till later */ | |
1334 | } | |
1335 | #ifdef HAS_SETRGID | |
85e6fe83 | 1336 | (void)setrgid((Gid_t)gid); |
79072805 LW |
1337 | #else |
1338 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1339 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1340 | #else | |
1341 | #ifdef HAS_SETRESGID | |
1342 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); | |
79072805 LW |
1343 | #else |
1344 | if (gid == egid) /* special case $( = $) */ | |
1345 | (void)setgid(gid); | |
748a9306 LW |
1346 | else { |
1347 | gid = (I32)getgid(); | |
463ee0b2 | 1348 | croak("setrgid() not implemented"); |
748a9306 | 1349 | } |
79072805 LW |
1350 | #endif |
1351 | #endif | |
85e6fe83 | 1352 | #endif |
79072805 | 1353 | gid = (I32)getgid(); |
4633a7c4 | 1354 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1355 | break; |
1356 | case ')': | |
463ee0b2 | 1357 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1358 | if (delaymagic) { |
1359 | delaymagic |= DM_EGID; | |
1360 | break; /* don't do magic till later */ | |
1361 | } | |
1362 | #ifdef HAS_SETEGID | |
85e6fe83 | 1363 | (void)setegid((Gid_t)egid); |
79072805 LW |
1364 | #else |
1365 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1366 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1367 | #else | |
1368 | #ifdef HAS_SETRESGID | |
1369 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); | |
79072805 LW |
1370 | #else |
1371 | if (egid == gid) /* special case $) = $( */ | |
1372 | (void)setgid(egid); | |
748a9306 LW |
1373 | else { |
1374 | egid = (I32)getegid(); | |
463ee0b2 | 1375 | croak("setegid() not implemented"); |
748a9306 | 1376 | } |
79072805 LW |
1377 | #endif |
1378 | #endif | |
85e6fe83 | 1379 | #endif |
79072805 | 1380 | egid = (I32)getegid(); |
4633a7c4 | 1381 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1382 | break; |
1383 | case ':': | |
a0d0e21e | 1384 | chopset = SvPV_force(sv,na); |
79072805 LW |
1385 | break; |
1386 | case '0': | |
1387 | if (!origalen) { | |
1388 | s = origargv[0]; | |
1389 | s += strlen(s); | |
1390 | /* See if all the arguments are contiguous in memory */ | |
1391 | for (i = 1; i < origargc; i++) { | |
1392 | if (origargv[i] == s + 1) | |
1393 | s += strlen(++s); /* this one is ok too */ | |
1394 | } | |
1395 | if (origenviron[0] == s + 1) { /* can grab env area too? */ | |
1396 | my_setenv("NoNeSuCh", Nullch); | |
1397 | /* force copy of environment */ | |
1398 | for (i = 0; origenviron[i]; i++) | |
1399 | if (origenviron[i] == s + 1) | |
1400 | s += strlen(++s); | |
1401 | } | |
1402 | origalen = s - origargv[0]; | |
1403 | } | |
a0d0e21e | 1404 | s = SvPV_force(sv,len); |
8990e307 | 1405 | i = len; |
79072805 LW |
1406 | if (i >= origalen) { |
1407 | i = origalen; | |
1408 | SvCUR_set(sv, i); | |
1409 | *SvEND(sv) = '\0'; | |
1410 | Copy(s, origargv[0], i, char); | |
1411 | } | |
1412 | else { | |
1413 | Copy(s, origargv[0], i, char); | |
1414 | s = origargv[0]+i; | |
1415 | *s++ = '\0'; | |
1416 | while (++i < origalen) | |
8990e307 LW |
1417 | *s++ = ' '; |
1418 | s = origargv[0]+i; | |
ed6116ce | 1419 | for (i = 1; i < origargc; i++) |
8990e307 | 1420 | origargv[i] = Nullch; |
79072805 LW |
1421 | } |
1422 | break; | |
1423 | } | |
1424 | return 0; | |
1425 | } | |
1426 | ||
1427 | I32 | |
1428 | whichsig(sig) | |
1429 | char *sig; | |
1430 | { | |
1431 | register char **sigv; | |
1432 | ||
1433 | for (sigv = sig_name+1; *sigv; sigv++) | |
1434 | if (strEQ(sig,*sigv)) | |
8e07c86e | 1435 | return sig_num[sigv - sig_name]; |
79072805 LW |
1436 | #ifdef SIGCLD |
1437 | if (strEQ(sig,"CHLD")) | |
1438 | return SIGCLD; | |
1439 | #endif | |
1440 | #ifdef SIGCHLD | |
1441 | if (strEQ(sig,"CLD")) | |
1442 | return SIGCHLD; | |
1443 | #endif | |
1444 | return 0; | |
1445 | } | |
1446 | ||
ecfc5424 | 1447 | Signal_t |
79072805 | 1448 | sighandler(sig) |
a0d0e21e | 1449 | int sig; |
79072805 LW |
1450 | { |
1451 | dSP; | |
1452 | GV *gv; | |
a0d0e21e | 1453 | HV *st; |
79072805 LW |
1454 | SV *sv; |
1455 | CV *cv; | |
79072805 | 1456 | AV *oldstack; |
79072805 | 1457 | |
88e89b8a | 1458 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); |
a0d0e21e | 1459 | if (!cv || !CvROOT(cv)) { |
79072805 LW |
1460 | if (dowarn) |
1461 | warn("SIG%s handler \"%s\" not defined.\n", | |
88e89b8a | 1462 | sig_name[sig], GvENAME(gv) ); |
79072805 LW |
1463 | return; |
1464 | } | |
1465 | ||
88e89b8a | 1466 | oldstack = curstack; |
1467 | if (curstack != signalstack) | |
a0d0e21e | 1468 | AvFILL(signalstack) = 0; |
88e89b8a | 1469 | SWITCHSTACK(curstack, signalstack); |
79072805 | 1470 | |
88e89b8a | 1471 | if(psig_name[sig]) |
1472 | sv = SvREFCNT_inc(psig_name[sig]); | |
1473 | else { | |
1474 | sv = sv_newmortal(); | |
1475 | sv_setpv(sv,sig_name[sig]); | |
1476 | } | |
a0d0e21e | 1477 | PUSHMARK(sp); |
79072805 | 1478 | PUSHs(sv); |
79072805 | 1479 | PUTBACK; |
a0d0e21e LW |
1480 | |
1481 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 LW |
1482 | |
1483 | SWITCHSTACK(signalstack, oldstack); | |
79072805 LW |
1484 | |
1485 | return; | |
1486 | } |