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 | ||
e6d9441c | 18 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e LW |
19 | #ifdef I_UNISTD |
20 | # include <unistd.h> | |
21 | #endif | |
a0d0e21e | 22 | |
188ea221 CS |
23 | #ifdef HAS_GETGROUPS |
24 | # ifndef NGROUPS | |
25 | # define NGROUPS 32 | |
26 | # endif | |
27 | #endif | |
28 | ||
c07a80fd | 29 | /* |
30 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
31 | */ | |
32 | ||
33 | struct magic_state { | |
34 | SV* mgs_sv; | |
35 | U32 mgs_flags; | |
36 | }; | |
37 | typedef struct magic_state MGS; | |
38 | ||
39 | static void restore_magic _((void *p)); | |
40 | ||
48e43a1c CS |
41 | static void |
42 | save_magic(mgs, sv) | |
43 | MGS* mgs; | |
c07a80fd | 44 | SV* sv; |
45 | { | |
c07a80fd | 46 | assert(SvMAGICAL(sv)); |
47 | ||
c07a80fd | 48 | mgs->mgs_sv = sv; |
49 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
50 | SAVEDESTRUCTOR(restore_magic, mgs); | |
51 | ||
52 | SvMAGICAL_off(sv); | |
53 | SvREADONLY_off(sv); | |
54 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; | |
c07a80fd | 55 | } |
56 | ||
57 | static void | |
58 | restore_magic(p) | |
59 | void* p; | |
60 | { | |
48e43a1c | 61 | MGS* mgs = (MGS*)p; |
c07a80fd | 62 | SV* sv = mgs->mgs_sv; |
63 | ||
64 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
65 | { | |
66 | if (mgs->mgs_flags) | |
67 | SvFLAGS(sv) |= mgs->mgs_flags; | |
68 | else | |
69 | mg_magical(sv); | |
70 | if (SvGMAGICAL(sv)) | |
71 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
72 | } | |
c07a80fd | 73 | } |
74 | ||
8e07c86e | 75 | |
8990e307 LW |
76 | void |
77 | mg_magical(sv) | |
78 | SV* sv; | |
79 | { | |
80 | MAGIC* mg; | |
81 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
82 | MGVTBL* vtbl = mg->mg_virtual; | |
83 | if (vtbl) { | |
a0d0e21e | 84 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
85 | SvGMAGICAL_on(sv); |
86 | if (vtbl->svt_set) | |
87 | SvSMAGICAL_on(sv); | |
88 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) | |
89 | SvRMAGICAL_on(sv); | |
90 | } | |
91 | } | |
92 | } | |
93 | ||
79072805 LW |
94 | int |
95 | mg_get(sv) | |
96 | SV* sv; | |
97 | { | |
48e43a1c | 98 | MGS mgs; |
79072805 | 99 | MAGIC* mg; |
c6496cc7 | 100 | MAGIC** mgp; |
760ac839 | 101 | int mgp_valid = 0; |
463ee0b2 | 102 | |
c07a80fd | 103 | ENTER; |
48e43a1c | 104 | save_magic(&mgs, 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 */ |
48e43a1c CS |
112 | if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) && |
113 | (mg->mg_flags & MGf_GSKIP)) | |
114 | mgs.mgs_flags = 0; | |
a0d0e21e | 115 | } |
c6496cc7 | 116 | /* Advance to next magic (complicated by possible deletion) */ |
760ac839 | 117 | if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) { |
c6496cc7 | 118 | mgp = &mg->mg_moremagic; |
760ac839 LW |
119 | mgp_valid = 1; |
120 | } | |
121 | else | |
122 | mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */ | |
79072805 | 123 | } |
463ee0b2 | 124 | |
c07a80fd | 125 | LEAVE; |
79072805 LW |
126 | return 0; |
127 | } | |
128 | ||
129 | int | |
130 | mg_set(sv) | |
131 | SV* sv; | |
132 | { | |
48e43a1c | 133 | MGS mgs; |
79072805 | 134 | MAGIC* mg; |
463ee0b2 LW |
135 | MAGIC* nextmg; |
136 | ||
c07a80fd | 137 | ENTER; |
48e43a1c | 138 | save_magic(&mgs, sv); |
463ee0b2 LW |
139 | |
140 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
79072805 | 141 | MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 142 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
143 | if (mg->mg_flags & MGf_GSKIP) { |
144 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
48e43a1c | 145 | mgs.mgs_flags = 0; |
a0d0e21e | 146 | } |
79072805 LW |
147 | if (vtbl && vtbl->svt_set) |
148 | (*vtbl->svt_set)(sv, mg); | |
149 | } | |
463ee0b2 | 150 | |
c07a80fd | 151 | LEAVE; |
79072805 LW |
152 | return 0; |
153 | } | |
154 | ||
155 | U32 | |
156 | mg_len(sv) | |
157 | SV* sv; | |
158 | { | |
159 | MAGIC* mg; | |
748a9306 | 160 | char *junk; |
463ee0b2 | 161 | STRLEN len; |
463ee0b2 | 162 | |
79072805 LW |
163 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
164 | MGVTBL* vtbl = mg->mg_virtual; | |
85e6fe83 | 165 | if (vtbl && vtbl->svt_len) { |
48e43a1c CS |
166 | MGS mgs; |
167 | ||
c07a80fd | 168 | ENTER; |
48e43a1c | 169 | save_magic(&mgs, sv); |
a0d0e21e | 170 | /* omit MGf_GSKIP -- not changed here */ |
85e6fe83 | 171 | len = (*vtbl->svt_len)(sv, mg); |
c07a80fd | 172 | LEAVE; |
85e6fe83 LW |
173 | return len; |
174 | } | |
175 | } | |
176 | ||
748a9306 | 177 | junk = SvPV(sv, len); |
463ee0b2 | 178 | return len; |
79072805 LW |
179 | } |
180 | ||
181 | int | |
182 | mg_clear(sv) | |
183 | SV* sv; | |
184 | { | |
48e43a1c | 185 | MGS mgs; |
79072805 | 186 | MAGIC* mg; |
463ee0b2 | 187 | |
c07a80fd | 188 | ENTER; |
48e43a1c | 189 | save_magic(&mgs, sv); |
463ee0b2 | 190 | |
79072805 LW |
191 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
192 | MGVTBL* vtbl = mg->mg_virtual; | |
a0d0e21e LW |
193 | /* omit GSKIP -- never set here */ |
194 | ||
79072805 LW |
195 | if (vtbl && vtbl->svt_clear) |
196 | (*vtbl->svt_clear)(sv, mg); | |
197 | } | |
463ee0b2 | 198 | |
c07a80fd | 199 | LEAVE; |
79072805 LW |
200 | return 0; |
201 | } | |
202 | ||
93a17b20 LW |
203 | MAGIC* |
204 | mg_find(sv, type) | |
205 | SV* sv; | |
a0d0e21e | 206 | int type; |
93a17b20 LW |
207 | { |
208 | MAGIC* mg; | |
93a17b20 LW |
209 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
210 | if (mg->mg_type == type) | |
211 | return mg; | |
212 | } | |
213 | return 0; | |
214 | } | |
215 | ||
79072805 | 216 | int |
463ee0b2 | 217 | mg_copy(sv, nsv, key, klen) |
79072805 | 218 | SV* sv; |
463ee0b2 LW |
219 | SV* nsv; |
220 | char *key; | |
88e89b8a | 221 | I32 klen; |
79072805 | 222 | { |
463ee0b2 | 223 | int count = 0; |
79072805 | 224 | MAGIC* mg; |
463ee0b2 LW |
225 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
226 | if (isUPPER(mg->mg_type)) { | |
a0d0e21e | 227 | sv_magic(nsv, mg->mg_obj, toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 228 | count++; |
79072805 | 229 | } |
79072805 | 230 | } |
463ee0b2 | 231 | return count; |
79072805 LW |
232 | } |
233 | ||
234 | int | |
463ee0b2 | 235 | mg_free(sv) |
79072805 LW |
236 | SV* sv; |
237 | { | |
238 | MAGIC* mg; | |
239 | MAGIC* moremagic; | |
240 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
241 | MGVTBL* vtbl = mg->mg_virtual; | |
242 | moremagic = mg->mg_moremagic; | |
243 | if (vtbl && vtbl->svt_free) | |
244 | (*vtbl->svt_free)(sv, mg); | |
93a17b20 | 245 | if (mg->mg_ptr && mg->mg_type != 'g') |
88e89b8a | 246 | if (mg->mg_len >= 0) |
247 | Safefree(mg->mg_ptr); | |
248 | else if (mg->mg_len == HEf_SVKEY) | |
249 | SvREFCNT_dec((SV*)mg->mg_ptr); | |
85e6fe83 | 250 | if (mg->mg_flags & MGf_REFCOUNTED) |
8990e307 | 251 | SvREFCNT_dec(mg->mg_obj); |
79072805 LW |
252 | Safefree(mg); |
253 | } | |
254 | SvMAGIC(sv) = 0; | |
255 | return 0; | |
256 | } | |
257 | ||
258 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
259 | #include <signal.h> | |
260 | #endif | |
261 | ||
93a17b20 LW |
262 | U32 |
263 | magic_len(sv, mg) | |
264 | SV *sv; | |
265 | MAGIC *mg; | |
266 | { | |
267 | register I32 paren; | |
268 | register char *s; | |
269 | register I32 i; | |
bbce6d69 | 270 | register REGEXP *rx; |
748a9306 | 271 | char *t; |
93a17b20 LW |
272 | |
273 | switch (*mg->mg_ptr) { | |
274 | case '1': case '2': case '3': case '4': | |
275 | case '5': case '6': case '7': case '8': case '9': case '&': | |
bbce6d69 | 276 | if (curpm && (rx = curpm->op_pmregexp)) { |
93a17b20 LW |
277 | paren = atoi(mg->mg_ptr); |
278 | getparen: | |
bbce6d69 | 279 | if (paren <= rx->nparens && |
280 | (s = rx->startp[paren]) && | |
281 | (t = rx->endp[paren])) | |
282 | { | |
748a9306 | 283 | i = t - s; |
71be2cbc | 284 | if (i >= 0) |
93a17b20 | 285 | return i; |
93a17b20 | 286 | } |
93a17b20 | 287 | } |
748a9306 | 288 | return 0; |
93a17b20 LW |
289 | break; |
290 | case '+': | |
bbce6d69 | 291 | if (curpm && (rx = curpm->op_pmregexp)) { |
292 | paren = rx->lastparen; | |
13f57bf8 CS |
293 | if (paren) |
294 | goto getparen; | |
93a17b20 | 295 | } |
748a9306 | 296 | return 0; |
93a17b20 LW |
297 | break; |
298 | case '`': | |
bbce6d69 | 299 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 | 300 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 | 301 | i = rx->startp[0] - s; |
71be2cbc | 302 | if (i >= 0) |
93a17b20 | 303 | return i; |
93a17b20 | 304 | } |
93a17b20 | 305 | } |
748a9306 | 306 | return 0; |
93a17b20 | 307 | case '\'': |
bbce6d69 | 308 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 CS |
309 | if (rx->subend && (s = rx->endp[0])) { |
310 | i = rx->subend - s; | |
311 | if (i >= 0) | |
312 | return 0; | |
93a17b20 | 313 | } |
93a17b20 | 314 | } |
748a9306 | 315 | return 0; |
93a17b20 LW |
316 | case ',': |
317 | return (STRLEN)ofslen; | |
318 | case '\\': | |
319 | return (STRLEN)orslen; | |
320 | } | |
321 | magic_get(sv,mg); | |
322 | if (!SvPOK(sv) && SvNIOK(sv)) | |
463ee0b2 | 323 | sv_2pv(sv, &na); |
93a17b20 LW |
324 | if (SvPOK(sv)) |
325 | return SvCUR(sv); | |
326 | return 0; | |
327 | } | |
328 | ||
79072805 LW |
329 | int |
330 | magic_get(sv, mg) | |
331 | SV *sv; | |
332 | MAGIC *mg; | |
333 | { | |
334 | register I32 paren; | |
335 | register char *s; | |
336 | register I32 i; | |
bbce6d69 | 337 | register REGEXP *rx; |
748a9306 | 338 | char *t; |
79072805 LW |
339 | |
340 | switch (*mg->mg_ptr) { | |
748a9306 LW |
341 | case '\001': /* ^A */ |
342 | sv_setsv(sv, bodytarget); | |
343 | break; | |
79072805 | 344 | case '\004': /* ^D */ |
188ea221 | 345 | sv_setiv(sv, (IV)(debug & 32767)); |
79072805 | 346 | break; |
28f23441 | 347 | case '\005': /* ^E */ |
348 | #ifdef VMS | |
349 | { | |
350 | # include <descrip.h> | |
351 | # include <starlet.h> | |
352 | char msg[255]; | |
353 | $DESCRIPTOR(msgdsc,msg); | |
946ec16e | 354 | sv_setnv(sv,(double) vaxc$errno); |
28f23441 | 355 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) |
356 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
357 | else | |
358 | sv_setpv(sv,""); | |
359 | } | |
360 | #else | |
88e89b8a | 361 | #ifdef OS2 |
946ec16e | 362 | sv_setnv(sv, (double)Perl_rc); |
88e89b8a | 363 | sv_setpv(sv, os2error(Perl_rc)); |
364 | #else | |
946ec16e | 365 | sv_setnv(sv, (double)errno); |
28f23441 | 366 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
367 | #endif | |
88e89b8a | 368 | #endif |
946ec16e | 369 | SvNOK_on(sv); /* what a wonderful hack! */ |
28f23441 | 370 | break; |
79072805 | 371 | case '\006': /* ^F */ |
188ea221 | 372 | sv_setiv(sv, (IV)maxsysfd); |
79072805 | 373 | break; |
a0d0e21e | 374 | case '\010': /* ^H */ |
188ea221 | 375 | sv_setiv(sv, (IV)hints); |
a0d0e21e | 376 | break; |
79072805 LW |
377 | case '\t': /* ^I */ |
378 | if (inplace) | |
379 | sv_setpv(sv, inplace); | |
380 | else | |
188ea221 | 381 | sv_setsv(sv, &sv_undef); |
79072805 | 382 | break; |
28f23441 | 383 | case '\017': /* ^O */ |
188ea221 | 384 | sv_setpv(sv, osname); |
28f23441 | 385 | break; |
79072805 | 386 | case '\020': /* ^P */ |
188ea221 | 387 | sv_setiv(sv, (IV)perldb); |
79072805 LW |
388 | break; |
389 | case '\024': /* ^T */ | |
88e89b8a | 390 | #ifdef BIG_TIME |
188ea221 | 391 | sv_setnv(sv, basetime); |
88e89b8a | 392 | #else |
188ea221 | 393 | sv_setiv(sv, (IV)basetime); |
88e89b8a | 394 | #endif |
79072805 LW |
395 | break; |
396 | case '\027': /* ^W */ | |
188ea221 | 397 | sv_setiv(sv, (IV)dowarn); |
79072805 LW |
398 | break; |
399 | case '1': case '2': case '3': case '4': | |
400 | case '5': case '6': case '7': case '8': case '9': case '&': | |
bbce6d69 | 401 | if (curpm && (rx = curpm->op_pmregexp)) { |
88e89b8a | 402 | paren = atoi(GvENAME((GV*)mg->mg_obj)); |
79072805 | 403 | getparen: |
bbce6d69 | 404 | if (paren <= rx->nparens && |
405 | (s = rx->startp[paren]) && | |
406 | (t = rx->endp[paren])) | |
407 | { | |
748a9306 | 408 | i = t - s; |
13f57bf8 | 409 | getrx: |
748a9306 | 410 | if (i >= 0) { |
13f57bf8 CS |
411 | bool was_tainted; |
412 | if (tainting) { | |
413 | was_tainted = tainted; | |
414 | tainted = FALSE; | |
415 | } | |
79072805 | 416 | sv_setpvn(sv,s,i); |
13f57bf8 CS |
417 | if (tainting) |
418 | tainted = was_tainted || rx->exec_tainted; | |
748a9306 LW |
419 | break; |
420 | } | |
79072805 | 421 | } |
79072805 | 422 | } |
748a9306 | 423 | sv_setsv(sv,&sv_undef); |
79072805 LW |
424 | break; |
425 | case '+': | |
bbce6d69 | 426 | if (curpm && (rx = curpm->op_pmregexp)) { |
427 | paren = rx->lastparen; | |
a0d0e21e LW |
428 | if (paren) |
429 | goto getparen; | |
79072805 | 430 | } |
748a9306 | 431 | sv_setsv(sv,&sv_undef); |
79072805 LW |
432 | break; |
433 | case '`': | |
bbce6d69 | 434 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 | 435 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 | 436 | i = rx->startp[0] - s; |
13f57bf8 | 437 | goto getrx; |
79072805 | 438 | } |
79072805 | 439 | } |
748a9306 | 440 | sv_setsv(sv,&sv_undef); |
79072805 LW |
441 | break; |
442 | case '\'': | |
bbce6d69 | 443 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 CS |
444 | if (rx->subend && (s = rx->endp[0])) { |
445 | i = rx->subend - s; | |
446 | goto getrx; | |
79072805 | 447 | } |
79072805 | 448 | } |
748a9306 | 449 | sv_setsv(sv,&sv_undef); |
79072805 LW |
450 | break; |
451 | case '.': | |
452 | #ifndef lint | |
a0d0e21e | 453 | if (GvIO(last_in_gv)) { |
188ea221 | 454 | sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv))); |
79072805 LW |
455 | } |
456 | #endif | |
457 | break; | |
458 | case '?': | |
ff0cee69 | 459 | sv_setiv(sv, (IV)STATUS_CURRENT); |
460 | #ifdef COMPLEX_STATUS | |
461 | LvTARGOFF(sv) = statusvalue; | |
462 | LvTARGLEN(sv) = statusvalue_vms; | |
463 | #endif | |
79072805 LW |
464 | break; |
465 | case '^': | |
a0d0e21e | 466 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 LW |
467 | if (s) |
468 | sv_setpv(sv,s); | |
469 | else { | |
470 | sv_setpv(sv,GvENAME(defoutgv)); | |
471 | sv_catpv(sv,"_TOP"); | |
472 | } | |
473 | break; | |
474 | case '~': | |
a0d0e21e | 475 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 LW |
476 | if (!s) |
477 | s = GvENAME(defoutgv); | |
478 | sv_setpv(sv,s); | |
479 | break; | |
480 | #ifndef lint | |
481 | case '=': | |
188ea221 | 482 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 LW |
483 | break; |
484 | case '-': | |
188ea221 | 485 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 LW |
486 | break; |
487 | case '%': | |
188ea221 | 488 | sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv))); |
79072805 LW |
489 | break; |
490 | #endif | |
491 | case ':': | |
492 | break; | |
493 | case '/': | |
494 | break; | |
495 | case '[': | |
188ea221 | 496 | sv_setiv(sv, (IV)curcop->cop_arybase); |
79072805 LW |
497 | break; |
498 | case '|': | |
188ea221 | 499 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
500 | break; |
501 | case ',': | |
502 | sv_setpvn(sv,ofs,ofslen); | |
503 | break; | |
504 | case '\\': | |
505 | sv_setpvn(sv,ors,orslen); | |
506 | break; | |
507 | case '#': | |
508 | sv_setpv(sv,ofmt); | |
509 | break; | |
510 | case '!': | |
a5f75d66 | 511 | #ifdef VMS |
946ec16e | 512 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 513 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 514 | #else |
88e89b8a | 515 | { |
516 | int saveerrno = errno; | |
946ec16e | 517 | sv_setnv(sv, (double)errno); |
88e89b8a | 518 | #ifdef OS2 |
519 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
520 | else | |
a5f75d66 | 521 | #endif |
2304df62 | 522 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 523 | errno = saveerrno; |
524 | } | |
525 | #endif | |
946ec16e | 526 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
527 | break; |
528 | case '<': | |
188ea221 | 529 | sv_setiv(sv, (IV)uid); |
79072805 LW |
530 | break; |
531 | case '>': | |
188ea221 | 532 | sv_setiv(sv, (IV)euid); |
79072805 LW |
533 | break; |
534 | case '(': | |
188ea221 | 535 | sv_setiv(sv, (IV)gid); |
79072805 LW |
536 | s = buf; |
537 | (void)sprintf(s,"%d",(int)gid); | |
538 | goto add_groups; | |
539 | case ')': | |
188ea221 | 540 | sv_setiv(sv, (IV)egid); |
79072805 LW |
541 | s = buf; |
542 | (void)sprintf(s,"%d",(int)egid); | |
543 | add_groups: | |
544 | while (*s) s++; | |
545 | #ifdef HAS_GETGROUPS | |
79072805 | 546 | { |
a0d0e21e | 547 | Groups_t gary[NGROUPS]; |
79072805 LW |
548 | |
549 | i = getgroups(NGROUPS,gary); | |
550 | while (--i >= 0) { | |
188ea221 | 551 | (void)sprintf(s," %d", (int)gary[i]); |
79072805 LW |
552 | while (*s) s++; |
553 | } | |
554 | } | |
555 | #endif | |
556 | sv_setpv(sv,buf); | |
29355cf7 | 557 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
558 | break; |
559 | case '*': | |
560 | break; | |
561 | case '0': | |
562 | break; | |
563 | } | |
a0d0e21e | 564 | return 0; |
79072805 LW |
565 | } |
566 | ||
567 | int | |
568 | magic_getuvar(sv, mg) | |
569 | SV *sv; | |
570 | MAGIC *mg; | |
571 | { | |
572 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
573 | ||
574 | if (uf && uf->uf_val) | |
575 | (*uf->uf_val)(uf->uf_index, sv); | |
576 | return 0; | |
577 | } | |
578 | ||
579 | int | |
580 | magic_setenv(sv,mg) | |
581 | SV* sv; | |
582 | MAGIC* mg; | |
583 | { | |
584 | register char *s; | |
88e89b8a | 585 | char *ptr; |
a0d0e21e LW |
586 | STRLEN len; |
587 | I32 i; | |
588 | s = SvPV(sv,len); | |
188ea221 | 589 | ptr = MgPV(mg); |
88e89b8a | 590 | my_setenv(ptr, s); |
a0d0e21e LW |
591 | #ifdef DYNAMIC_ENV_FETCH |
592 | /* We just undefd an environment var. Is a replacement */ | |
593 | /* waiting in the wings? */ | |
594 | if (!len) { | |
88e89b8a | 595 | HE *envhe; |
188ea221 CS |
596 | SV *keysv; |
597 | if (mg->mg_len == HEf_SVKEY) keysv = (SV *)mg->mg_ptr; | |
598 | else keysv = newSVpv(mg->mg_ptr,mg->mg_len); | |
599 | if (envhe = hv_fetch_ent(GvHVn(envgv),keysv,FALSE,0)) | |
88e89b8a | 600 | s = SvPV(HeVAL(envhe),len); |
188ea221 | 601 | if (mg->mg_len != HEf_SVKEY) SvREFCNT_dec(keysv); |
a0d0e21e LW |
602 | } |
603 | #endif | |
79072805 LW |
604 | /* And you'll never guess what the dog had */ |
605 | /* in its mouth... */ | |
463ee0b2 | 606 | if (tainting) { |
88e89b8a | 607 | if (s && strEQ(ptr,"PATH")) { |
a0d0e21e | 608 | char *strend = s + len; |
463ee0b2 LW |
609 | |
610 | while (s < strend) { | |
611 | s = cpytill(tokenbuf,s,strend,':',&i); | |
612 | s++; | |
613 | if (*tokenbuf != '/' | |
a0d0e21e | 614 | || (Stat(tokenbuf,&statbuf) && (statbuf.st_mode & 2)) ) |
8990e307 | 615 | MgTAINTEDDIR_on(mg); |
463ee0b2 | 616 | } |
79072805 LW |
617 | } |
618 | } | |
79072805 LW |
619 | return 0; |
620 | } | |
621 | ||
622 | int | |
85e6fe83 LW |
623 | magic_clearenv(sv,mg) |
624 | SV* sv; | |
625 | MAGIC* mg; | |
626 | { | |
188ea221 | 627 | my_setenv(MgPV(mg),Nullch); |
85e6fe83 LW |
628 | return 0; |
629 | } | |
630 | ||
88e89b8a | 631 | int |
632 | magic_getsig(sv,mg) | |
633 | SV* sv; | |
634 | MAGIC* mg; | |
635 | { | |
636 | I32 i; | |
637 | /* Are we fetching a signal entry? */ | |
188ea221 | 638 | i = whichsig(MgPV(mg)); |
88e89b8a | 639 | if (i) { |
640 | if(psig_ptr[i]) | |
641 | sv_setsv(sv,psig_ptr[i]); | |
642 | else { | |
ff68c719 | 643 | Sighandler_t sigstate = rsignal_state(i); |
644 | ||
88e89b8a | 645 | /* cache state so we don't fetch it again */ |
ff68c719 | 646 | if(sigstate == SIG_IGN) |
88e89b8a | 647 | sv_setpv(sv,"IGNORE"); |
648 | else | |
649 | sv_setsv(sv,&sv_undef); | |
650 | psig_ptr[i] = SvREFCNT_inc(sv); | |
651 | SvTEMP_off(sv); | |
652 | } | |
653 | } | |
654 | return 0; | |
655 | } | |
656 | int | |
657 | magic_clearsig(sv,mg) | |
658 | SV* sv; | |
659 | MAGIC* mg; | |
660 | { | |
661 | I32 i; | |
662 | /* Are we clearing a signal entry? */ | |
188ea221 | 663 | i = whichsig(MgPV(mg)); |
88e89b8a | 664 | if (i) { |
665 | if(psig_ptr[i]) { | |
666 | SvREFCNT_dec(psig_ptr[i]); | |
667 | psig_ptr[i]=0; | |
668 | } | |
669 | if(psig_name[i]) { | |
670 | SvREFCNT_dec(psig_name[i]); | |
671 | psig_name[i]=0; | |
672 | } | |
673 | } | |
674 | return 0; | |
675 | } | |
3d37d572 | 676 | |
85e6fe83 | 677 | int |
79072805 LW |
678 | magic_setsig(sv,mg) |
679 | SV* sv; | |
680 | MAGIC* mg; | |
681 | { | |
682 | register char *s; | |
683 | I32 i; | |
748a9306 | 684 | SV** svp; |
a0d0e21e | 685 | |
188ea221 | 686 | s = MgPV(mg); |
748a9306 LW |
687 | if (*s == '_') { |
688 | if (strEQ(s,"__DIE__")) | |
689 | svp = &diehook; | |
690 | else if (strEQ(s,"__WARN__")) | |
691 | svp = &warnhook; | |
692 | else if (strEQ(s,"__PARSE__")) | |
693 | svp = &parsehook; | |
694 | else | |
695 | croak("No such hook: %s", s); | |
696 | i = 0; | |
4633a7c4 LW |
697 | if (*svp) { |
698 | SvREFCNT_dec(*svp); | |
699 | *svp = 0; | |
700 | } | |
748a9306 LW |
701 | } |
702 | else { | |
703 | i = whichsig(s); /* ...no, a brick */ | |
704 | if (!i) { | |
705 | if (dowarn || strEQ(s,"ALARM")) | |
706 | warn("No such signal: SIG%s", s); | |
707 | return 0; | |
708 | } | |
ff0cee69 | 709 | SvREFCNT_dec(psig_name[i]); |
710 | SvREFCNT_dec(psig_ptr[i]); | |
88e89b8a | 711 | psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 712 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
ff0cee69 | 713 | psig_name[i] = newSVpv(s, strlen(s)); |
88e89b8a | 714 | SvREADONLY_on(psig_name[i]); |
748a9306 | 715 | } |
a0d0e21e | 716 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 717 | if (i) |
ff68c719 | 718 | (void)rsignal(i, sighandler); |
748a9306 LW |
719 | else |
720 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
721 | return 0; |
722 | } | |
723 | s = SvPV_force(sv,na); | |
748a9306 LW |
724 | if (strEQ(s,"IGNORE")) { |
725 | if (i) | |
ff68c719 | 726 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
727 | else |
728 | *svp = 0; | |
729 | } | |
730 | else if (strEQ(s,"DEFAULT") || !*s) { | |
731 | if (i) | |
ff68c719 | 732 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
733 | else |
734 | *svp = 0; | |
735 | } | |
79072805 | 736 | else { |
760ac839 LW |
737 | if(hints & HINT_STRICT_REFS) |
738 | die(no_symref,s,"a subroutine"); | |
2304df62 AD |
739 | if (!strchr(s,':') && !strchr(s,'\'')) { |
740 | sprintf(tokenbuf, "main::%s",s); | |
79072805 LW |
741 | sv_setpv(sv,tokenbuf); |
742 | } | |
748a9306 | 743 | if (i) |
ff68c719 | 744 | (void)rsignal(i, sighandler); |
748a9306 LW |
745 | else |
746 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
747 | } |
748 | return 0; | |
749 | } | |
750 | ||
751 | int | |
463ee0b2 | 752 | magic_setisa(sv,mg) |
79072805 LW |
753 | SV* sv; |
754 | MAGIC* mg; | |
755 | { | |
463ee0b2 LW |
756 | sub_generation++; |
757 | return 0; | |
758 | } | |
759 | ||
a0d0e21e LW |
760 | #ifdef OVERLOAD |
761 | ||
463ee0b2 | 762 | int |
a0d0e21e | 763 | magic_setamagic(sv,mg) |
463ee0b2 LW |
764 | SV* sv; |
765 | MAGIC* mg; | |
766 | { | |
a0d0e21e LW |
767 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
768 | amagic_generation++; | |
463ee0b2 | 769 | |
a0d0e21e LW |
770 | return 0; |
771 | } | |
772 | #endif /* OVERLOAD */ | |
463ee0b2 | 773 | |
946ec16e | 774 | int |
775 | magic_setnkeys(sv,mg) | |
776 | SV* sv; | |
777 | MAGIC* mg; | |
778 | { | |
779 | if (LvTARG(sv)) { | |
780 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
781 | LvTARG(sv) = Nullsv; /* Don't allow a ref to reassign this. */ | |
782 | } | |
783 | return 0; | |
784 | } | |
785 | ||
a0d0e21e LW |
786 | static int |
787 | magic_methpack(sv,mg,meth) | |
788 | SV* sv; | |
789 | MAGIC* mg; | |
790 | char *meth; | |
791 | { | |
792 | dSP; | |
463ee0b2 | 793 | |
a0d0e21e LW |
794 | ENTER; |
795 | SAVETMPS; | |
796 | PUSHMARK(sp); | |
797 | EXTEND(sp, 2); | |
798 | PUSHs(mg->mg_obj); | |
88e89b8a | 799 | if (mg->mg_ptr) { |
800 | if (mg->mg_len >= 0) | |
801 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
802 | else if (mg->mg_len == HEf_SVKEY) | |
803 | PUSHs((SV*)mg->mg_ptr); | |
804 | } | |
a0d0e21e LW |
805 | else if (mg->mg_type == 'p') |
806 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
807 | PUTBACK; |
808 | ||
a0d0e21e LW |
809 | if (perl_call_method(meth, G_SCALAR)) |
810 | sv_setsv(sv, *stack_sp--); | |
463ee0b2 | 811 | |
a0d0e21e LW |
812 | FREETMPS; |
813 | LEAVE; | |
814 | return 0; | |
815 | } | |
463ee0b2 | 816 | |
a0d0e21e LW |
817 | int |
818 | magic_getpack(sv,mg) | |
819 | SV* sv; | |
820 | MAGIC* mg; | |
821 | { | |
822 | magic_methpack(sv,mg,"FETCH"); | |
823 | if (mg->mg_ptr) | |
824 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
825 | return 0; |
826 | } | |
827 | ||
828 | int | |
829 | magic_setpack(sv,mg) | |
830 | SV* sv; | |
831 | MAGIC* mg; | |
832 | { | |
463ee0b2 | 833 | dSP; |
463ee0b2 | 834 | |
a0d0e21e LW |
835 | PUSHMARK(sp); |
836 | EXTEND(sp, 3); | |
837 | PUSHs(mg->mg_obj); | |
88e89b8a | 838 | if (mg->mg_ptr) { |
839 | if (mg->mg_len >= 0) | |
840 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
841 | else if (mg->mg_len == HEf_SVKEY) | |
842 | PUSHs((SV*)mg->mg_ptr); | |
843 | } | |
a0d0e21e LW |
844 | else if (mg->mg_type == 'p') |
845 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
846 | PUSHs(sv); |
847 | PUTBACK; | |
848 | ||
a0d0e21e | 849 | perl_call_method("STORE", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
850 | |
851 | return 0; | |
852 | } | |
853 | ||
854 | int | |
855 | magic_clearpack(sv,mg) | |
856 | SV* sv; | |
857 | MAGIC* mg; | |
858 | { | |
a0d0e21e LW |
859 | return magic_methpack(sv,mg,"DELETE"); |
860 | } | |
463ee0b2 | 861 | |
a0d0e21e LW |
862 | int magic_wipepack(sv,mg) |
863 | SV* sv; | |
864 | MAGIC* mg; | |
865 | { | |
866 | dSP; | |
463ee0b2 | 867 | |
a0d0e21e LW |
868 | PUSHMARK(sp); |
869 | XPUSHs(mg->mg_obj); | |
463ee0b2 | 870 | PUTBACK; |
463ee0b2 | 871 | |
a0d0e21e | 872 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
873 | |
874 | return 0; | |
875 | } | |
876 | ||
877 | int | |
878 | magic_nextpack(sv,mg,key) | |
879 | SV* sv; | |
880 | MAGIC* mg; | |
881 | SV* key; | |
882 | { | |
463ee0b2 | 883 | dSP; |
a0d0e21e | 884 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
885 | |
886 | ENTER; | |
a0d0e21e LW |
887 | SAVETMPS; |
888 | PUSHMARK(sp); | |
889 | EXTEND(sp, 2); | |
890 | PUSHs(mg->mg_obj); | |
463ee0b2 LW |
891 | if (SvOK(key)) |
892 | PUSHs(key); | |
893 | PUTBACK; | |
894 | ||
a0d0e21e LW |
895 | if (perl_call_method(meth, G_SCALAR)) |
896 | sv_setsv(key, *stack_sp--); | |
463ee0b2 | 897 | |
a0d0e21e LW |
898 | FREETMPS; |
899 | LEAVE; | |
79072805 LW |
900 | return 0; |
901 | } | |
902 | ||
903 | int | |
a0d0e21e LW |
904 | magic_existspack(sv,mg) |
905 | SV* sv; | |
906 | MAGIC* mg; | |
907 | { | |
908 | return magic_methpack(sv,mg,"EXISTS"); | |
909 | } | |
910 | ||
911 | int | |
79072805 LW |
912 | magic_setdbline(sv,mg) |
913 | SV* sv; | |
914 | MAGIC* mg; | |
915 | { | |
916 | OP *o; | |
917 | I32 i; | |
918 | GV* gv; | |
919 | SV** svp; | |
920 | ||
921 | gv = DBline; | |
922 | i = SvTRUE(sv); | |
188ea221 CS |
923 | svp = av_fetch(GvAV(gv), |
924 | atoi(MgPV(mg)), FALSE); | |
8990e307 | 925 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 926 | o->op_private = i; |
79072805 LW |
927 | else |
928 | warn("Can't break at that line\n"); | |
929 | return 0; | |
930 | } | |
931 | ||
932 | int | |
933 | magic_getarylen(sv,mg) | |
934 | SV* sv; | |
935 | MAGIC* mg; | |
936 | { | |
a0d0e21e | 937 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 LW |
938 | return 0; |
939 | } | |
940 | ||
941 | int | |
942 | magic_setarylen(sv,mg) | |
943 | SV* sv; | |
944 | MAGIC* mg; | |
945 | { | |
a0d0e21e LW |
946 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
947 | return 0; | |
948 | } | |
949 | ||
950 | int | |
951 | magic_getpos(sv,mg) | |
952 | SV* sv; | |
953 | MAGIC* mg; | |
954 | { | |
955 | SV* lsv = LvTARG(sv); | |
956 | ||
957 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
958 | mg = mg_find(lsv, 'g'); | |
959 | if (mg && mg->mg_len >= 0) { | |
960 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); | |
961 | return 0; | |
962 | } | |
963 | } | |
964 | (void)SvOK_off(sv); | |
965 | return 0; | |
966 | } | |
967 | ||
968 | int | |
969 | magic_setpos(sv,mg) | |
970 | SV* sv; | |
971 | MAGIC* mg; | |
972 | { | |
973 | SV* lsv = LvTARG(sv); | |
974 | SSize_t pos; | |
975 | STRLEN len; | |
976 | ||
977 | mg = 0; | |
978 | ||
979 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
980 | mg = mg_find(lsv, 'g'); | |
981 | if (!mg) { | |
982 | if (!SvOK(sv)) | |
983 | return 0; | |
984 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
985 | mg = mg_find(lsv, 'g'); | |
986 | } | |
987 | else if (!SvOK(sv)) { | |
988 | mg->mg_len = -1; | |
989 | return 0; | |
990 | } | |
991 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
992 | ||
993 | pos = SvIV(sv) - curcop->cop_arybase; | |
994 | if (pos < 0) { | |
995 | pos += len; | |
996 | if (pos < 0) | |
997 | pos = 0; | |
998 | } | |
999 | else if (pos > len) | |
1000 | pos = len; | |
1001 | mg->mg_len = pos; | |
71be2cbc | 1002 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1003 | |
79072805 LW |
1004 | return 0; |
1005 | } | |
1006 | ||
1007 | int | |
1008 | magic_getglob(sv,mg) | |
1009 | SV* sv; | |
1010 | MAGIC* mg; | |
1011 | { | |
8646b087 | 1012 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1013 | SvFAKE_off(sv); | |
946ec16e | 1014 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1015 | SvFAKE_on(sv); |
1016 | } | |
1017 | else | |
946ec16e | 1018 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1019 | return 0; |
1020 | } | |
1021 | ||
1022 | int | |
1023 | magic_setglob(sv,mg) | |
1024 | SV* sv; | |
1025 | MAGIC* mg; | |
1026 | { | |
1027 | register char *s; | |
1028 | GV* gv; | |
1029 | ||
1030 | if (!SvOK(sv)) | |
1031 | return 0; | |
463ee0b2 | 1032 | s = SvPV(sv, na); |
79072805 LW |
1033 | if (*s == '*' && s[1]) |
1034 | s++; | |
85e6fe83 | 1035 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1036 | if (sv == (SV*)gv) |
1037 | return 0; | |
1038 | if (GvGP(sv)) | |
88e89b8a | 1039 | gp_free((GV*)sv); |
79072805 | 1040 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1041 | return 0; |
1042 | } | |
1043 | ||
1044 | int | |
1045 | magic_setsubstr(sv,mg) | |
1046 | SV* sv; | |
1047 | MAGIC* mg; | |
1048 | { | |
8990e307 LW |
1049 | STRLEN len; |
1050 | char *tmps = SvPV(sv,len); | |
1051 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1052 | return 0; |
1053 | } | |
1054 | ||
1055 | int | |
463ee0b2 LW |
1056 | magic_gettaint(sv,mg) |
1057 | SV* sv; | |
1058 | MAGIC* mg; | |
1059 | { | |
bbce6d69 | 1060 | TAINT_IF((mg->mg_len & 1) || |
1061 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1062 | return 0; |
1063 | } | |
1064 | ||
1065 | int | |
1066 | magic_settaint(sv,mg) | |
1067 | SV* sv; | |
1068 | MAGIC* mg; | |
1069 | { | |
748a9306 LW |
1070 | if (localizing) { |
1071 | if (localizing == 1) | |
1072 | mg->mg_len <<= 1; | |
1073 | else | |
1074 | mg->mg_len >>= 1; | |
a0d0e21e | 1075 | } |
748a9306 LW |
1076 | else if (tainted) |
1077 | mg->mg_len |= 1; | |
1078 | else | |
1079 | mg->mg_len &= ~1; | |
463ee0b2 LW |
1080 | return 0; |
1081 | } | |
1082 | ||
1083 | int | |
79072805 LW |
1084 | magic_setvec(sv,mg) |
1085 | SV* sv; | |
1086 | MAGIC* mg; | |
1087 | { | |
1088 | do_vecset(sv); /* XXX slurp this routine */ | |
1089 | return 0; | |
1090 | } | |
1091 | ||
1092 | int | |
71be2cbc | 1093 | magic_getitervar(sv,mg) |
5f05dabc | 1094 | SV* sv; |
1095 | MAGIC* mg; | |
1096 | { | |
71be2cbc | 1097 | SV *targ = Nullsv; |
5f05dabc | 1098 | if (LvTARGLEN(sv)) { |
1099 | AV* av = (AV*)LvTARG(sv); | |
71be2cbc | 1100 | if (LvTARGOFF(sv) <= AvFILL(av)) |
1101 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
5f05dabc | 1102 | } |
71be2cbc | 1103 | else |
1104 | targ = LvTARG(sv); | |
1105 | sv_setsv(sv, targ ? targ : &sv_undef); | |
1106 | return 0; | |
1107 | } | |
1108 | ||
1109 | int | |
1110 | magic_setitervar(sv,mg) | |
1111 | SV* sv; | |
1112 | MAGIC* mg; | |
1113 | { | |
1114 | if (LvTARGLEN(sv)) | |
1115 | vivify_itervar(sv); | |
5f05dabc | 1116 | if (LvTARG(sv)) |
1117 | sv_setsv(LvTARG(sv), sv); | |
1118 | return 0; | |
1119 | } | |
1120 | ||
1121 | int | |
71be2cbc | 1122 | magic_freeitervar(sv,mg) |
5f05dabc | 1123 | SV* sv; |
1124 | MAGIC* mg; | |
1125 | { | |
1126 | SvREFCNT_dec(LvTARG(sv)); | |
71be2cbc | 1127 | return 0; |
1128 | } | |
1129 | ||
1130 | void | |
1131 | vivify_itervar(sv) | |
1132 | SV* sv; | |
1133 | { | |
1134 | AV* av; | |
1135 | ||
1136 | if (!LvTARGLEN(sv)) | |
1137 | return; | |
1138 | av = (AV*)LvTARG(sv); | |
1139 | if (LvTARGOFF(sv) <= AvFILL(av)) { | |
1140 | SV** svp = AvARRAY(av) + LvTARGOFF(sv); | |
1141 | LvTARG(sv) = newSVsv(*svp); | |
1142 | SvREFCNT_dec(*svp); | |
1143 | *svp = SvREFCNT_inc(LvTARG(sv)); | |
1144 | } | |
1145 | else | |
1146 | LvTARG(sv) = Nullsv; | |
1147 | SvREFCNT_dec(av); | |
1148 | LvTARGLEN(sv) = 0; | |
5f05dabc | 1149 | } |
1150 | ||
1151 | int | |
93a17b20 LW |
1152 | magic_setmglob(sv,mg) |
1153 | SV* sv; | |
1154 | MAGIC* mg; | |
1155 | { | |
a0d0e21e | 1156 | mg->mg_len = -1; |
c6496cc7 | 1157 | SvSCREAM_off(sv); |
93a17b20 LW |
1158 | return 0; |
1159 | } | |
1160 | ||
1161 | int | |
79072805 LW |
1162 | magic_setbm(sv,mg) |
1163 | SV* sv; | |
1164 | MAGIC* mg; | |
1165 | { | |
463ee0b2 | 1166 | sv_unmagic(sv, 'B'); |
79072805 LW |
1167 | SvVALID_off(sv); |
1168 | return 0; | |
1169 | } | |
1170 | ||
1171 | int | |
55497cff | 1172 | magic_setfm(sv,mg) |
1173 | SV* sv; | |
1174 | MAGIC* mg; | |
1175 | { | |
1176 | sv_unmagic(sv, 'f'); | |
1177 | SvCOMPILED_off(sv); | |
1178 | return 0; | |
1179 | } | |
1180 | ||
1181 | int | |
79072805 LW |
1182 | magic_setuvar(sv,mg) |
1183 | SV* sv; | |
1184 | MAGIC* mg; | |
1185 | { | |
1186 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1187 | ||
1188 | if (uf && uf->uf_set) | |
1189 | (*uf->uf_set)(uf->uf_index, sv); | |
1190 | return 0; | |
1191 | } | |
1192 | ||
7a4c00b4 | 1193 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1194 | int |
bbce6d69 | 1195 | magic_setcollxfrm(sv,mg) |
1196 | SV* sv; | |
1197 | MAGIC* mg; | |
1198 | { | |
1199 | /* | |
1200 | * René Descartes said "I think not." | |
1201 | * and vanished with a faint plop. | |
1202 | */ | |
7a4c00b4 | 1203 | if (mg->mg_ptr) { |
1204 | Safefree(mg->mg_ptr); | |
1205 | mg->mg_ptr = NULL; | |
1206 | mg->mg_len = -1; | |
1207 | } | |
bbce6d69 | 1208 | return 0; |
1209 | } | |
7a4c00b4 | 1210 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1211 | |
1212 | int | |
79072805 LW |
1213 | magic_set(sv,mg) |
1214 | SV* sv; | |
1215 | MAGIC* mg; | |
1216 | { | |
1217 | register char *s; | |
1218 | I32 i; | |
8990e307 | 1219 | STRLEN len; |
79072805 | 1220 | switch (*mg->mg_ptr) { |
748a9306 LW |
1221 | case '\001': /* ^A */ |
1222 | sv_setsv(bodytarget, sv); | |
1223 | break; | |
79072805 | 1224 | case '\004': /* ^D */ |
8990e307 | 1225 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1226 | DEBUG_x(dump_all()); |
1227 | break; | |
28f23441 | 1228 | case '\005': /* ^E */ |
1229 | #ifdef VMS | |
1230 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1231 | #else | |
f86702cc | 1232 | /* will anyone ever use this? */ |
1233 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
28f23441 | 1234 | #endif |
1235 | break; | |
79072805 | 1236 | case '\006': /* ^F */ |
463ee0b2 | 1237 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1238 | break; |
a0d0e21e LW |
1239 | case '\010': /* ^H */ |
1240 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1241 | break; | |
79072805 LW |
1242 | case '\t': /* ^I */ |
1243 | if (inplace) | |
1244 | Safefree(inplace); | |
1245 | if (SvOK(sv)) | |
a0d0e21e | 1246 | inplace = savepv(SvPV(sv,na)); |
79072805 LW |
1247 | else |
1248 | inplace = Nullch; | |
1249 | break; | |
28f23441 | 1250 | case '\017': /* ^O */ |
1251 | if (osname) | |
1252 | Safefree(osname); | |
1253 | if (SvOK(sv)) | |
1254 | osname = savepv(SvPV(sv,na)); | |
1255 | else | |
1256 | osname = Nullch; | |
1257 | break; | |
79072805 | 1258 | case '\020': /* ^P */ |
463ee0b2 | 1259 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1260 | if (i != perldb) { |
1261 | if (perldb) | |
1262 | oldlastpm = curpm; | |
1263 | else | |
1264 | curpm = oldlastpm; | |
1265 | } | |
1266 | perldb = i; | |
1267 | break; | |
1268 | case '\024': /* ^T */ | |
88e89b8a | 1269 | #ifdef BIG_TIME |
1270 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); | |
1271 | #else | |
85e6fe83 | 1272 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1273 | #endif |
79072805 LW |
1274 | break; |
1275 | case '\027': /* ^W */ | |
463ee0b2 | 1276 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1277 | break; |
1278 | case '.': | |
748a9306 LW |
1279 | if (localizing) { |
1280 | if (localizing == 1) | |
1281 | save_sptr((SV**)&last_in_gv); | |
1282 | } | |
88e89b8a | 1283 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e | 1284 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 LW |
1285 | break; |
1286 | case '^': | |
a0d0e21e LW |
1287 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1288 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1289 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1290 | break; |
1291 | case '~': | |
a0d0e21e LW |
1292 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1293 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1294 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1295 | break; |
1296 | case '=': | |
a0d0e21e | 1297 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1298 | break; |
1299 | case '-': | |
a0d0e21e LW |
1300 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1301 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) | |
1302 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; | |
79072805 LW |
1303 | break; |
1304 | case '%': | |
a0d0e21e | 1305 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1306 | break; |
1307 | case '|': | |
a0d0e21e | 1308 | IoFLAGS(GvIOp(defoutgv)) &= ~IOf_FLUSH; |
463ee0b2 | 1309 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) != 0) { |
a0d0e21e | 1310 | IoFLAGS(GvIOp(defoutgv)) |= IOf_FLUSH; |
79072805 LW |
1311 | } |
1312 | break; | |
1313 | case '*': | |
463ee0b2 | 1314 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1315 | multiline = (i != 0); |
1316 | break; | |
1317 | case '/': | |
c07a80fd | 1318 | SvREFCNT_dec(nrs); |
1319 | nrs = newSVsv(sv); | |
1320 | SvREFCNT_dec(rs); | |
1321 | rs = SvREFCNT_inc(nrs); | |
79072805 LW |
1322 | break; |
1323 | case '\\': | |
1324 | if (ors) | |
1325 | Safefree(ors); | |
e3c19b7b CS |
1326 | if (SvOK(sv) || SvGMAGICAL(sv)) |
1327 | ors = savepv(SvPV(sv,orslen)); | |
1328 | else { | |
1329 | ors = Nullch; | |
1330 | orslen = 0; | |
1331 | } | |
79072805 LW |
1332 | break; |
1333 | case ',': | |
1334 | if (ofs) | |
1335 | Safefree(ofs); | |
a0d0e21e | 1336 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 LW |
1337 | break; |
1338 | case '#': | |
1339 | if (ofmt) | |
1340 | Safefree(ofmt); | |
a0d0e21e | 1341 | ofmt = savepv(SvPV(sv,na)); |
79072805 LW |
1342 | break; |
1343 | case '[': | |
a0d0e21e | 1344 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1345 | break; |
1346 | case '?': | |
ff0cee69 | 1347 | #ifdef COMPLEX_STATUS |
1348 | if (localizing == 2) { | |
1349 | statusvalue = LvTARGOFF(sv); | |
1350 | statusvalue_vms = LvTARGLEN(sv); | |
1351 | } | |
1352 | else | |
1353 | #endif | |
1354 | #ifdef VMSISH_STATUS | |
1355 | if (VMSISH_STATUS) | |
1356 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
1357 | else | |
1358 | #endif | |
1359 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
1360 | break; |
1361 | case '!': | |
f86702cc | 1362 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), |
1363 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); | |
79072805 LW |
1364 | break; |
1365 | case '<': | |
463ee0b2 | 1366 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1367 | if (delaymagic) { |
1368 | delaymagic |= DM_RUID; | |
1369 | break; /* don't do magic till later */ | |
1370 | } | |
1371 | #ifdef HAS_SETRUID | |
85e6fe83 | 1372 | (void)setruid((Uid_t)uid); |
79072805 LW |
1373 | #else |
1374 | #ifdef HAS_SETREUID | |
85e6fe83 | 1375 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 | 1376 | #else |
85e6fe83 LW |
1377 | #ifdef HAS_SETRESUID |
1378 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); | |
79072805 LW |
1379 | #else |
1380 | if (uid == euid) /* special case $< = $> */ | |
1381 | (void)setuid(uid); | |
a0d0e21e LW |
1382 | else { |
1383 | uid = (I32)getuid(); | |
463ee0b2 | 1384 | croak("setruid() not implemented"); |
a0d0e21e | 1385 | } |
79072805 LW |
1386 | #endif |
1387 | #endif | |
85e6fe83 | 1388 | #endif |
748a9306 | 1389 | uid = (I32)getuid(); |
4633a7c4 | 1390 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1391 | break; |
1392 | case '>': | |
463ee0b2 | 1393 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1394 | if (delaymagic) { |
1395 | delaymagic |= DM_EUID; | |
1396 | break; /* don't do magic till later */ | |
1397 | } | |
1398 | #ifdef HAS_SETEUID | |
85e6fe83 | 1399 | (void)seteuid((Uid_t)euid); |
79072805 LW |
1400 | #else |
1401 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1402 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1403 | #else | |
1404 | #ifdef HAS_SETRESUID | |
1405 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); | |
79072805 LW |
1406 | #else |
1407 | if (euid == uid) /* special case $> = $< */ | |
1408 | setuid(euid); | |
a0d0e21e LW |
1409 | else { |
1410 | euid = (I32)geteuid(); | |
463ee0b2 | 1411 | croak("seteuid() not implemented"); |
a0d0e21e | 1412 | } |
79072805 LW |
1413 | #endif |
1414 | #endif | |
85e6fe83 | 1415 | #endif |
79072805 | 1416 | euid = (I32)geteuid(); |
4633a7c4 | 1417 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1418 | break; |
1419 | case '(': | |
463ee0b2 | 1420 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1421 | if (delaymagic) { |
1422 | delaymagic |= DM_RGID; | |
1423 | break; /* don't do magic till later */ | |
1424 | } | |
1425 | #ifdef HAS_SETRGID | |
85e6fe83 | 1426 | (void)setrgid((Gid_t)gid); |
79072805 LW |
1427 | #else |
1428 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1429 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1430 | #else | |
1431 | #ifdef HAS_SETRESGID | |
1432 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); | |
79072805 LW |
1433 | #else |
1434 | if (gid == egid) /* special case $( = $) */ | |
1435 | (void)setgid(gid); | |
748a9306 LW |
1436 | else { |
1437 | gid = (I32)getgid(); | |
463ee0b2 | 1438 | croak("setrgid() not implemented"); |
748a9306 | 1439 | } |
79072805 LW |
1440 | #endif |
1441 | #endif | |
85e6fe83 | 1442 | #endif |
79072805 | 1443 | gid = (I32)getgid(); |
4633a7c4 | 1444 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1445 | break; |
1446 | case ')': | |
463ee0b2 | 1447 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1448 | if (delaymagic) { |
1449 | delaymagic |= DM_EGID; | |
1450 | break; /* don't do magic till later */ | |
1451 | } | |
1452 | #ifdef HAS_SETEGID | |
85e6fe83 | 1453 | (void)setegid((Gid_t)egid); |
79072805 LW |
1454 | #else |
1455 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1456 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1457 | #else | |
1458 | #ifdef HAS_SETRESGID | |
1459 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); | |
79072805 LW |
1460 | #else |
1461 | if (egid == gid) /* special case $) = $( */ | |
1462 | (void)setgid(egid); | |
748a9306 LW |
1463 | else { |
1464 | egid = (I32)getegid(); | |
463ee0b2 | 1465 | croak("setegid() not implemented"); |
748a9306 | 1466 | } |
79072805 LW |
1467 | #endif |
1468 | #endif | |
85e6fe83 | 1469 | #endif |
79072805 | 1470 | egid = (I32)getegid(); |
4633a7c4 | 1471 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1472 | break; |
1473 | case ':': | |
a0d0e21e | 1474 | chopset = SvPV_force(sv,na); |
79072805 LW |
1475 | break; |
1476 | case '0': | |
1477 | if (!origalen) { | |
1478 | s = origargv[0]; | |
1479 | s += strlen(s); | |
1480 | /* See if all the arguments are contiguous in memory */ | |
1481 | for (i = 1; i < origargc; i++) { | |
1482 | if (origargv[i] == s + 1) | |
1483 | s += strlen(++s); /* this one is ok too */ | |
1484 | } | |
bbce6d69 | 1485 | /* can grab env area too? */ |
1486 | if (origenviron && origenviron[0] == s + 1) { | |
79072805 LW |
1487 | my_setenv("NoNeSuCh", Nullch); |
1488 | /* force copy of environment */ | |
1489 | for (i = 0; origenviron[i]; i++) | |
1490 | if (origenviron[i] == s + 1) | |
1491 | s += strlen(++s); | |
1492 | } | |
1493 | origalen = s - origargv[0]; | |
1494 | } | |
a0d0e21e | 1495 | s = SvPV_force(sv,len); |
8990e307 | 1496 | i = len; |
79072805 LW |
1497 | if (i >= origalen) { |
1498 | i = origalen; | |
1499 | SvCUR_set(sv, i); | |
1500 | *SvEND(sv) = '\0'; | |
1501 | Copy(s, origargv[0], i, char); | |
1502 | } | |
1503 | else { | |
1504 | Copy(s, origargv[0], i, char); | |
1505 | s = origargv[0]+i; | |
1506 | *s++ = '\0'; | |
1507 | while (++i < origalen) | |
8990e307 LW |
1508 | *s++ = ' '; |
1509 | s = origargv[0]+i; | |
ed6116ce | 1510 | for (i = 1; i < origargc; i++) |
8990e307 | 1511 | origargv[i] = Nullch; |
79072805 LW |
1512 | } |
1513 | break; | |
1514 | } | |
1515 | return 0; | |
1516 | } | |
1517 | ||
1518 | I32 | |
1519 | whichsig(sig) | |
1520 | char *sig; | |
1521 | { | |
1522 | register char **sigv; | |
1523 | ||
1524 | for (sigv = sig_name+1; *sigv; sigv++) | |
1525 | if (strEQ(sig,*sigv)) | |
8e07c86e | 1526 | return sig_num[sigv - sig_name]; |
79072805 LW |
1527 | #ifdef SIGCLD |
1528 | if (strEQ(sig,"CHLD")) | |
1529 | return SIGCLD; | |
1530 | #endif | |
1531 | #ifdef SIGCHLD | |
1532 | if (strEQ(sig,"CLD")) | |
1533 | return SIGCHLD; | |
1534 | #endif | |
1535 | return 0; | |
1536 | } | |
1537 | ||
ecfc5424 | 1538 | Signal_t |
79072805 | 1539 | sighandler(sig) |
a0d0e21e | 1540 | int sig; |
79072805 LW |
1541 | { |
1542 | dSP; | |
1543 | GV *gv; | |
a0d0e21e | 1544 | HV *st; |
79072805 LW |
1545 | SV *sv; |
1546 | CV *cv; | |
79072805 | 1547 | AV *oldstack; |
ff0cee69 | 1548 | |
1549 | if (!psig_ptr[sig]) | |
1550 | die("Signal SIG%s received, but no signal handler set.\n", | |
1551 | sig_name[sig]); | |
1552 | ||
88e89b8a | 1553 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); |
a0d0e21e | 1554 | if (!cv || !CvROOT(cv)) { |
79072805 LW |
1555 | if (dowarn) |
1556 | warn("SIG%s handler \"%s\" not defined.\n", | |
88e89b8a | 1557 | sig_name[sig], GvENAME(gv) ); |
79072805 LW |
1558 | return; |
1559 | } | |
1560 | ||
88e89b8a | 1561 | oldstack = curstack; |
1562 | if (curstack != signalstack) | |
a0d0e21e | 1563 | AvFILL(signalstack) = 0; |
88e89b8a | 1564 | SWITCHSTACK(curstack, signalstack); |
79072805 | 1565 | |
88e89b8a | 1566 | if(psig_name[sig]) |
1567 | sv = SvREFCNT_inc(psig_name[sig]); | |
1568 | else { | |
ff0cee69 | 1569 | sv = sv_newmortal(); |
1570 | sv_setpv(sv,sig_name[sig]); | |
88e89b8a | 1571 | } |
a0d0e21e | 1572 | PUSHMARK(sp); |
79072805 | 1573 | PUSHs(sv); |
79072805 | 1574 | PUTBACK; |
a0d0e21e LW |
1575 | |
1576 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 LW |
1577 | |
1578 | SWITCHSTACK(signalstack, oldstack); | |
4bf61a0f | 1579 | |
79072805 LW |
1580 | return; |
1581 | } |