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 | 388 | break; |
f86702cc | 389 | case '\023': /* ^S */ |
390 | if (STATUS_NATIVE == -1) | |
391 | sv_setiv(sv, (IV)-1); | |
392 | else | |
393 | sv_setuv(sv, (UV)STATUS_NATIVE); | |
394 | break; | |
79072805 | 395 | case '\024': /* ^T */ |
88e89b8a | 396 | #ifdef BIG_TIME |
188ea221 | 397 | sv_setnv(sv, basetime); |
88e89b8a | 398 | #else |
188ea221 | 399 | sv_setiv(sv, (IV)basetime); |
88e89b8a | 400 | #endif |
79072805 LW |
401 | break; |
402 | case '\027': /* ^W */ | |
188ea221 | 403 | sv_setiv(sv, (IV)dowarn); |
79072805 LW |
404 | break; |
405 | case '1': case '2': case '3': case '4': | |
406 | case '5': case '6': case '7': case '8': case '9': case '&': | |
bbce6d69 | 407 | if (curpm && (rx = curpm->op_pmregexp)) { |
88e89b8a | 408 | paren = atoi(GvENAME((GV*)mg->mg_obj)); |
79072805 | 409 | getparen: |
bbce6d69 | 410 | if (paren <= rx->nparens && |
411 | (s = rx->startp[paren]) && | |
412 | (t = rx->endp[paren])) | |
413 | { | |
748a9306 | 414 | i = t - s; |
13f57bf8 | 415 | getrx: |
748a9306 | 416 | if (i >= 0) { |
13f57bf8 CS |
417 | bool was_tainted; |
418 | if (tainting) { | |
419 | was_tainted = tainted; | |
420 | tainted = FALSE; | |
421 | } | |
79072805 | 422 | sv_setpvn(sv,s,i); |
13f57bf8 CS |
423 | if (tainting) |
424 | tainted = was_tainted || rx->exec_tainted; | |
748a9306 LW |
425 | break; |
426 | } | |
79072805 | 427 | } |
79072805 | 428 | } |
748a9306 | 429 | sv_setsv(sv,&sv_undef); |
79072805 LW |
430 | break; |
431 | case '+': | |
bbce6d69 | 432 | if (curpm && (rx = curpm->op_pmregexp)) { |
433 | paren = rx->lastparen; | |
a0d0e21e LW |
434 | if (paren) |
435 | goto getparen; | |
79072805 | 436 | } |
748a9306 | 437 | sv_setsv(sv,&sv_undef); |
79072805 LW |
438 | break; |
439 | case '`': | |
bbce6d69 | 440 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 | 441 | if ((s = rx->subbeg) && rx->startp[0]) { |
bbce6d69 | 442 | i = rx->startp[0] - s; |
13f57bf8 | 443 | goto getrx; |
79072805 | 444 | } |
79072805 | 445 | } |
748a9306 | 446 | sv_setsv(sv,&sv_undef); |
79072805 LW |
447 | break; |
448 | case '\'': | |
bbce6d69 | 449 | if (curpm && (rx = curpm->op_pmregexp)) { |
13f57bf8 CS |
450 | if (rx->subend && (s = rx->endp[0])) { |
451 | i = rx->subend - s; | |
452 | goto getrx; | |
79072805 | 453 | } |
79072805 | 454 | } |
748a9306 | 455 | sv_setsv(sv,&sv_undef); |
79072805 LW |
456 | break; |
457 | case '.': | |
458 | #ifndef lint | |
a0d0e21e | 459 | if (GvIO(last_in_gv)) { |
188ea221 | 460 | sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv))); |
79072805 LW |
461 | } |
462 | #endif | |
463 | break; | |
464 | case '?': | |
91e9c03f | 465 | sv_setiv(sv, (IV)STATUS_POSIX); |
79072805 LW |
466 | break; |
467 | case '^': | |
a0d0e21e | 468 | s = IoTOP_NAME(GvIOp(defoutgv)); |
79072805 LW |
469 | if (s) |
470 | sv_setpv(sv,s); | |
471 | else { | |
472 | sv_setpv(sv,GvENAME(defoutgv)); | |
473 | sv_catpv(sv,"_TOP"); | |
474 | } | |
475 | break; | |
476 | case '~': | |
a0d0e21e | 477 | s = IoFMT_NAME(GvIOp(defoutgv)); |
79072805 LW |
478 | if (!s) |
479 | s = GvENAME(defoutgv); | |
480 | sv_setpv(sv,s); | |
481 | break; | |
482 | #ifndef lint | |
483 | case '=': | |
188ea221 | 484 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv))); |
79072805 LW |
485 | break; |
486 | case '-': | |
188ea221 | 487 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv))); |
79072805 LW |
488 | break; |
489 | case '%': | |
188ea221 | 490 | sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv))); |
79072805 LW |
491 | break; |
492 | #endif | |
493 | case ':': | |
494 | break; | |
495 | case '/': | |
496 | break; | |
497 | case '[': | |
188ea221 | 498 | sv_setiv(sv, (IV)curcop->cop_arybase); |
79072805 LW |
499 | break; |
500 | case '|': | |
188ea221 | 501 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 ); |
79072805 LW |
502 | break; |
503 | case ',': | |
504 | sv_setpvn(sv,ofs,ofslen); | |
505 | break; | |
506 | case '\\': | |
507 | sv_setpvn(sv,ors,orslen); | |
508 | break; | |
509 | case '#': | |
510 | sv_setpv(sv,ofmt); | |
511 | break; | |
512 | case '!': | |
a5f75d66 | 513 | #ifdef VMS |
946ec16e | 514 | sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 515 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 516 | #else |
88e89b8a | 517 | { |
518 | int saveerrno = errno; | |
946ec16e | 519 | sv_setnv(sv, (double)errno); |
88e89b8a | 520 | #ifdef OS2 |
521 | if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc)); | |
522 | else | |
a5f75d66 | 523 | #endif |
2304df62 | 524 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 525 | errno = saveerrno; |
526 | } | |
527 | #endif | |
946ec16e | 528 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
529 | break; |
530 | case '<': | |
188ea221 | 531 | sv_setiv(sv, (IV)uid); |
79072805 LW |
532 | break; |
533 | case '>': | |
188ea221 | 534 | sv_setiv(sv, (IV)euid); |
79072805 LW |
535 | break; |
536 | case '(': | |
188ea221 | 537 | sv_setiv(sv, (IV)gid); |
79072805 LW |
538 | s = buf; |
539 | (void)sprintf(s,"%d",(int)gid); | |
540 | goto add_groups; | |
541 | case ')': | |
188ea221 | 542 | sv_setiv(sv, (IV)egid); |
79072805 LW |
543 | s = buf; |
544 | (void)sprintf(s,"%d",(int)egid); | |
545 | add_groups: | |
546 | while (*s) s++; | |
547 | #ifdef HAS_GETGROUPS | |
79072805 | 548 | { |
a0d0e21e | 549 | Groups_t gary[NGROUPS]; |
79072805 LW |
550 | |
551 | i = getgroups(NGROUPS,gary); | |
552 | while (--i >= 0) { | |
188ea221 | 553 | (void)sprintf(s," %d", (int)gary[i]); |
79072805 LW |
554 | while (*s) s++; |
555 | } | |
556 | } | |
557 | #endif | |
558 | sv_setpv(sv,buf); | |
29355cf7 | 559 | SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
560 | break; |
561 | case '*': | |
562 | break; | |
563 | case '0': | |
564 | break; | |
565 | } | |
a0d0e21e | 566 | return 0; |
79072805 LW |
567 | } |
568 | ||
569 | int | |
570 | magic_getuvar(sv, mg) | |
571 | SV *sv; | |
572 | MAGIC *mg; | |
573 | { | |
574 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
575 | ||
576 | if (uf && uf->uf_val) | |
577 | (*uf->uf_val)(uf->uf_index, sv); | |
578 | return 0; | |
579 | } | |
580 | ||
581 | int | |
582 | magic_setenv(sv,mg) | |
583 | SV* sv; | |
584 | MAGIC* mg; | |
585 | { | |
586 | register char *s; | |
88e89b8a | 587 | char *ptr; |
a0d0e21e LW |
588 | STRLEN len; |
589 | I32 i; | |
590 | s = SvPV(sv,len); | |
188ea221 | 591 | ptr = MgPV(mg); |
88e89b8a | 592 | my_setenv(ptr, s); |
a0d0e21e LW |
593 | #ifdef DYNAMIC_ENV_FETCH |
594 | /* We just undefd an environment var. Is a replacement */ | |
595 | /* waiting in the wings? */ | |
596 | if (!len) { | |
88e89b8a | 597 | HE *envhe; |
188ea221 CS |
598 | SV *keysv; |
599 | if (mg->mg_len == HEf_SVKEY) keysv = (SV *)mg->mg_ptr; | |
600 | else keysv = newSVpv(mg->mg_ptr,mg->mg_len); | |
601 | if (envhe = hv_fetch_ent(GvHVn(envgv),keysv,FALSE,0)) | |
88e89b8a | 602 | s = SvPV(HeVAL(envhe),len); |
188ea221 | 603 | if (mg->mg_len != HEf_SVKEY) SvREFCNT_dec(keysv); |
a0d0e21e LW |
604 | } |
605 | #endif | |
79072805 LW |
606 | /* And you'll never guess what the dog had */ |
607 | /* in its mouth... */ | |
463ee0b2 | 608 | if (tainting) { |
88e89b8a | 609 | if (s && strEQ(ptr,"PATH")) { |
a0d0e21e | 610 | char *strend = s + len; |
463ee0b2 LW |
611 | |
612 | while (s < strend) { | |
613 | s = cpytill(tokenbuf,s,strend,':',&i); | |
614 | s++; | |
615 | if (*tokenbuf != '/' | |
a0d0e21e | 616 | || (Stat(tokenbuf,&statbuf) && (statbuf.st_mode & 2)) ) |
8990e307 | 617 | MgTAINTEDDIR_on(mg); |
463ee0b2 | 618 | } |
79072805 LW |
619 | } |
620 | } | |
79072805 LW |
621 | return 0; |
622 | } | |
623 | ||
624 | int | |
85e6fe83 LW |
625 | magic_clearenv(sv,mg) |
626 | SV* sv; | |
627 | MAGIC* mg; | |
628 | { | |
188ea221 | 629 | my_setenv(MgPV(mg),Nullch); |
85e6fe83 LW |
630 | return 0; |
631 | } | |
632 | ||
88e89b8a | 633 | int |
634 | magic_getsig(sv,mg) | |
635 | SV* sv; | |
636 | MAGIC* mg; | |
637 | { | |
638 | I32 i; | |
639 | /* Are we fetching a signal entry? */ | |
188ea221 | 640 | i = whichsig(MgPV(mg)); |
88e89b8a | 641 | if (i) { |
642 | if(psig_ptr[i]) | |
643 | sv_setsv(sv,psig_ptr[i]); | |
644 | else { | |
ff68c719 | 645 | Sighandler_t sigstate = rsignal_state(i); |
646 | ||
88e89b8a | 647 | /* cache state so we don't fetch it again */ |
ff68c719 | 648 | if(sigstate == SIG_IGN) |
88e89b8a | 649 | sv_setpv(sv,"IGNORE"); |
650 | else | |
651 | sv_setsv(sv,&sv_undef); | |
652 | psig_ptr[i] = SvREFCNT_inc(sv); | |
653 | SvTEMP_off(sv); | |
654 | } | |
655 | } | |
656 | return 0; | |
657 | } | |
658 | int | |
659 | magic_clearsig(sv,mg) | |
660 | SV* sv; | |
661 | MAGIC* mg; | |
662 | { | |
663 | I32 i; | |
664 | /* Are we clearing a signal entry? */ | |
188ea221 | 665 | i = whichsig(MgPV(mg)); |
88e89b8a | 666 | if (i) { |
667 | if(psig_ptr[i]) { | |
668 | SvREFCNT_dec(psig_ptr[i]); | |
669 | psig_ptr[i]=0; | |
670 | } | |
671 | if(psig_name[i]) { | |
672 | SvREFCNT_dec(psig_name[i]); | |
673 | psig_name[i]=0; | |
674 | } | |
675 | } | |
676 | return 0; | |
677 | } | |
3d37d572 | 678 | |
85e6fe83 | 679 | int |
79072805 LW |
680 | magic_setsig(sv,mg) |
681 | SV* sv; | |
682 | MAGIC* mg; | |
683 | { | |
684 | register char *s; | |
685 | I32 i; | |
748a9306 | 686 | SV** svp; |
a0d0e21e | 687 | |
188ea221 | 688 | s = MgPV(mg); |
748a9306 LW |
689 | if (*s == '_') { |
690 | if (strEQ(s,"__DIE__")) | |
691 | svp = &diehook; | |
692 | else if (strEQ(s,"__WARN__")) | |
693 | svp = &warnhook; | |
694 | else if (strEQ(s,"__PARSE__")) | |
695 | svp = &parsehook; | |
696 | else | |
697 | croak("No such hook: %s", s); | |
698 | i = 0; | |
4633a7c4 LW |
699 | if (*svp) { |
700 | SvREFCNT_dec(*svp); | |
701 | *svp = 0; | |
702 | } | |
748a9306 LW |
703 | } |
704 | else { | |
705 | i = whichsig(s); /* ...no, a brick */ | |
706 | if (!i) { | |
707 | if (dowarn || strEQ(s,"ALARM")) | |
708 | warn("No such signal: SIG%s", s); | |
709 | return 0; | |
710 | } | |
88e89b8a | 711 | if(psig_ptr[i]) |
712 | SvREFCNT_dec(psig_ptr[i]); | |
713 | psig_ptr[i] = SvREFCNT_inc(sv); | |
714 | if(psig_name[i]) | |
715 | SvREFCNT_dec(psig_name[i]); | |
8646b087 | 716 | psig_name[i] = newSVpv(s,strlen(s)); |
88e89b8a | 717 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
718 | SvREADONLY_on(psig_name[i]); | |
748a9306 | 719 | } |
a0d0e21e | 720 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
748a9306 | 721 | if (i) |
ff68c719 | 722 | (void)rsignal(i, sighandler); |
748a9306 LW |
723 | else |
724 | *svp = SvREFCNT_inc(sv); | |
a0d0e21e LW |
725 | return 0; |
726 | } | |
727 | s = SvPV_force(sv,na); | |
748a9306 LW |
728 | if (strEQ(s,"IGNORE")) { |
729 | if (i) | |
ff68c719 | 730 | (void)rsignal(i, SIG_IGN); |
748a9306 LW |
731 | else |
732 | *svp = 0; | |
733 | } | |
734 | else if (strEQ(s,"DEFAULT") || !*s) { | |
735 | if (i) | |
ff68c719 | 736 | (void)rsignal(i, SIG_DFL); |
748a9306 LW |
737 | else |
738 | *svp = 0; | |
739 | } | |
79072805 | 740 | else { |
760ac839 LW |
741 | if(hints & HINT_STRICT_REFS) |
742 | die(no_symref,s,"a subroutine"); | |
2304df62 AD |
743 | if (!strchr(s,':') && !strchr(s,'\'')) { |
744 | sprintf(tokenbuf, "main::%s",s); | |
79072805 LW |
745 | sv_setpv(sv,tokenbuf); |
746 | } | |
748a9306 | 747 | if (i) |
ff68c719 | 748 | (void)rsignal(i, sighandler); |
748a9306 LW |
749 | else |
750 | *svp = SvREFCNT_inc(sv); | |
79072805 LW |
751 | } |
752 | return 0; | |
753 | } | |
754 | ||
755 | int | |
463ee0b2 | 756 | magic_setisa(sv,mg) |
79072805 LW |
757 | SV* sv; |
758 | MAGIC* mg; | |
759 | { | |
463ee0b2 LW |
760 | sub_generation++; |
761 | return 0; | |
762 | } | |
763 | ||
a0d0e21e LW |
764 | #ifdef OVERLOAD |
765 | ||
463ee0b2 | 766 | int |
a0d0e21e | 767 | magic_setamagic(sv,mg) |
463ee0b2 LW |
768 | SV* sv; |
769 | MAGIC* mg; | |
770 | { | |
a0d0e21e LW |
771 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
772 | amagic_generation++; | |
463ee0b2 | 773 | |
a0d0e21e LW |
774 | return 0; |
775 | } | |
776 | #endif /* OVERLOAD */ | |
463ee0b2 | 777 | |
946ec16e | 778 | int |
779 | magic_setnkeys(sv,mg) | |
780 | SV* sv; | |
781 | MAGIC* mg; | |
782 | { | |
783 | if (LvTARG(sv)) { | |
784 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
785 | LvTARG(sv) = Nullsv; /* Don't allow a ref to reassign this. */ | |
786 | } | |
787 | return 0; | |
788 | } | |
789 | ||
a0d0e21e LW |
790 | static int |
791 | magic_methpack(sv,mg,meth) | |
792 | SV* sv; | |
793 | MAGIC* mg; | |
794 | char *meth; | |
795 | { | |
796 | dSP; | |
463ee0b2 | 797 | |
a0d0e21e LW |
798 | ENTER; |
799 | SAVETMPS; | |
800 | PUSHMARK(sp); | |
801 | EXTEND(sp, 2); | |
802 | PUSHs(mg->mg_obj); | |
88e89b8a | 803 | if (mg->mg_ptr) { |
804 | if (mg->mg_len >= 0) | |
805 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
806 | else if (mg->mg_len == HEf_SVKEY) | |
807 | PUSHs((SV*)mg->mg_ptr); | |
808 | } | |
a0d0e21e LW |
809 | else if (mg->mg_type == 'p') |
810 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
811 | PUTBACK; |
812 | ||
a0d0e21e LW |
813 | if (perl_call_method(meth, G_SCALAR)) |
814 | sv_setsv(sv, *stack_sp--); | |
463ee0b2 | 815 | |
a0d0e21e LW |
816 | FREETMPS; |
817 | LEAVE; | |
818 | return 0; | |
819 | } | |
463ee0b2 | 820 | |
a0d0e21e LW |
821 | int |
822 | magic_getpack(sv,mg) | |
823 | SV* sv; | |
824 | MAGIC* mg; | |
825 | { | |
826 | magic_methpack(sv,mg,"FETCH"); | |
827 | if (mg->mg_ptr) | |
828 | mg->mg_flags |= MGf_GSKIP; | |
463ee0b2 LW |
829 | return 0; |
830 | } | |
831 | ||
832 | int | |
833 | magic_setpack(sv,mg) | |
834 | SV* sv; | |
835 | MAGIC* mg; | |
836 | { | |
463ee0b2 | 837 | dSP; |
463ee0b2 | 838 | |
a0d0e21e LW |
839 | PUSHMARK(sp); |
840 | EXTEND(sp, 3); | |
841 | PUSHs(mg->mg_obj); | |
88e89b8a | 842 | if (mg->mg_ptr) { |
843 | if (mg->mg_len >= 0) | |
844 | PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len))); | |
845 | else if (mg->mg_len == HEf_SVKEY) | |
846 | PUSHs((SV*)mg->mg_ptr); | |
847 | } | |
a0d0e21e LW |
848 | else if (mg->mg_type == 'p') |
849 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); | |
463ee0b2 LW |
850 | PUSHs(sv); |
851 | PUTBACK; | |
852 | ||
a0d0e21e | 853 | perl_call_method("STORE", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
854 | |
855 | return 0; | |
856 | } | |
857 | ||
858 | int | |
859 | magic_clearpack(sv,mg) | |
860 | SV* sv; | |
861 | MAGIC* mg; | |
862 | { | |
a0d0e21e LW |
863 | return magic_methpack(sv,mg,"DELETE"); |
864 | } | |
463ee0b2 | 865 | |
a0d0e21e LW |
866 | int magic_wipepack(sv,mg) |
867 | SV* sv; | |
868 | MAGIC* mg; | |
869 | { | |
870 | dSP; | |
463ee0b2 | 871 | |
a0d0e21e LW |
872 | PUSHMARK(sp); |
873 | XPUSHs(mg->mg_obj); | |
463ee0b2 | 874 | PUTBACK; |
463ee0b2 | 875 | |
a0d0e21e | 876 | perl_call_method("CLEAR", G_SCALAR|G_DISCARD); |
463ee0b2 LW |
877 | |
878 | return 0; | |
879 | } | |
880 | ||
881 | int | |
882 | magic_nextpack(sv,mg,key) | |
883 | SV* sv; | |
884 | MAGIC* mg; | |
885 | SV* key; | |
886 | { | |
463ee0b2 | 887 | dSP; |
a0d0e21e | 888 | char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
889 | |
890 | ENTER; | |
a0d0e21e LW |
891 | SAVETMPS; |
892 | PUSHMARK(sp); | |
893 | EXTEND(sp, 2); | |
894 | PUSHs(mg->mg_obj); | |
463ee0b2 LW |
895 | if (SvOK(key)) |
896 | PUSHs(key); | |
897 | PUTBACK; | |
898 | ||
a0d0e21e LW |
899 | if (perl_call_method(meth, G_SCALAR)) |
900 | sv_setsv(key, *stack_sp--); | |
463ee0b2 | 901 | |
a0d0e21e LW |
902 | FREETMPS; |
903 | LEAVE; | |
79072805 LW |
904 | return 0; |
905 | } | |
906 | ||
907 | int | |
a0d0e21e LW |
908 | magic_existspack(sv,mg) |
909 | SV* sv; | |
910 | MAGIC* mg; | |
911 | { | |
912 | return magic_methpack(sv,mg,"EXISTS"); | |
913 | } | |
914 | ||
915 | int | |
79072805 LW |
916 | magic_setdbline(sv,mg) |
917 | SV* sv; | |
918 | MAGIC* mg; | |
919 | { | |
920 | OP *o; | |
921 | I32 i; | |
922 | GV* gv; | |
923 | SV** svp; | |
924 | ||
925 | gv = DBline; | |
926 | i = SvTRUE(sv); | |
188ea221 CS |
927 | svp = av_fetch(GvAV(gv), |
928 | atoi(MgPV(mg)), FALSE); | |
8990e307 | 929 | if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp))) |
93a17b20 | 930 | o->op_private = i; |
79072805 LW |
931 | else |
932 | warn("Can't break at that line\n"); | |
933 | return 0; | |
934 | } | |
935 | ||
936 | int | |
937 | magic_getarylen(sv,mg) | |
938 | SV* sv; | |
939 | MAGIC* mg; | |
940 | { | |
a0d0e21e | 941 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase); |
79072805 LW |
942 | return 0; |
943 | } | |
944 | ||
945 | int | |
946 | magic_setarylen(sv,mg) | |
947 | SV* sv; | |
948 | MAGIC* mg; | |
949 | { | |
a0d0e21e LW |
950 | av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase); |
951 | return 0; | |
952 | } | |
953 | ||
954 | int | |
955 | magic_getpos(sv,mg) | |
956 | SV* sv; | |
957 | MAGIC* mg; | |
958 | { | |
959 | SV* lsv = LvTARG(sv); | |
960 | ||
961 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { | |
962 | mg = mg_find(lsv, 'g'); | |
963 | if (mg && mg->mg_len >= 0) { | |
964 | sv_setiv(sv, mg->mg_len + curcop->cop_arybase); | |
965 | return 0; | |
966 | } | |
967 | } | |
968 | (void)SvOK_off(sv); | |
969 | return 0; | |
970 | } | |
971 | ||
972 | int | |
973 | magic_setpos(sv,mg) | |
974 | SV* sv; | |
975 | MAGIC* mg; | |
976 | { | |
977 | SV* lsv = LvTARG(sv); | |
978 | SSize_t pos; | |
979 | STRLEN len; | |
980 | ||
981 | mg = 0; | |
982 | ||
983 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) | |
984 | mg = mg_find(lsv, 'g'); | |
985 | if (!mg) { | |
986 | if (!SvOK(sv)) | |
987 | return 0; | |
988 | sv_magic(lsv, (SV*)0, 'g', Nullch, 0); | |
989 | mg = mg_find(lsv, 'g'); | |
990 | } | |
991 | else if (!SvOK(sv)) { | |
992 | mg->mg_len = -1; | |
993 | return 0; | |
994 | } | |
995 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
996 | ||
997 | pos = SvIV(sv) - curcop->cop_arybase; | |
998 | if (pos < 0) { | |
999 | pos += len; | |
1000 | if (pos < 0) | |
1001 | pos = 0; | |
1002 | } | |
1003 | else if (pos > len) | |
1004 | pos = len; | |
1005 | mg->mg_len = pos; | |
71be2cbc | 1006 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1007 | |
79072805 LW |
1008 | return 0; |
1009 | } | |
1010 | ||
1011 | int | |
1012 | magic_getglob(sv,mg) | |
1013 | SV* sv; | |
1014 | MAGIC* mg; | |
1015 | { | |
8646b087 | 1016 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1017 | SvFAKE_off(sv); | |
946ec16e | 1018 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1019 | SvFAKE_on(sv); |
1020 | } | |
1021 | else | |
946ec16e | 1022 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1023 | return 0; |
1024 | } | |
1025 | ||
1026 | int | |
1027 | magic_setglob(sv,mg) | |
1028 | SV* sv; | |
1029 | MAGIC* mg; | |
1030 | { | |
1031 | register char *s; | |
1032 | GV* gv; | |
1033 | ||
1034 | if (!SvOK(sv)) | |
1035 | return 0; | |
463ee0b2 | 1036 | s = SvPV(sv, na); |
79072805 LW |
1037 | if (*s == '*' && s[1]) |
1038 | s++; | |
85e6fe83 | 1039 | gv = gv_fetchpv(s,TRUE, SVt_PVGV); |
79072805 LW |
1040 | if (sv == (SV*)gv) |
1041 | return 0; | |
1042 | if (GvGP(sv)) | |
88e89b8a | 1043 | gp_free((GV*)sv); |
79072805 | 1044 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1045 | return 0; |
1046 | } | |
1047 | ||
1048 | int | |
1049 | magic_setsubstr(sv,mg) | |
1050 | SV* sv; | |
1051 | MAGIC* mg; | |
1052 | { | |
8990e307 LW |
1053 | STRLEN len; |
1054 | char *tmps = SvPV(sv,len); | |
1055 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps, len); | |
79072805 LW |
1056 | return 0; |
1057 | } | |
1058 | ||
1059 | int | |
463ee0b2 LW |
1060 | magic_gettaint(sv,mg) |
1061 | SV* sv; | |
1062 | MAGIC* mg; | |
1063 | { | |
bbce6d69 | 1064 | TAINT_IF((mg->mg_len & 1) || |
1065 | (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */ | |
463ee0b2 LW |
1066 | return 0; |
1067 | } | |
1068 | ||
1069 | int | |
1070 | magic_settaint(sv,mg) | |
1071 | SV* sv; | |
1072 | MAGIC* mg; | |
1073 | { | |
748a9306 LW |
1074 | if (localizing) { |
1075 | if (localizing == 1) | |
1076 | mg->mg_len <<= 1; | |
1077 | else | |
1078 | mg->mg_len >>= 1; | |
a0d0e21e | 1079 | } |
748a9306 LW |
1080 | else if (tainted) |
1081 | mg->mg_len |= 1; | |
1082 | else | |
1083 | mg->mg_len &= ~1; | |
463ee0b2 LW |
1084 | return 0; |
1085 | } | |
1086 | ||
1087 | int | |
79072805 LW |
1088 | magic_setvec(sv,mg) |
1089 | SV* sv; | |
1090 | MAGIC* mg; | |
1091 | { | |
1092 | do_vecset(sv); /* XXX slurp this routine */ | |
1093 | return 0; | |
1094 | } | |
1095 | ||
1096 | int | |
71be2cbc | 1097 | magic_getitervar(sv,mg) |
5f05dabc | 1098 | SV* sv; |
1099 | MAGIC* mg; | |
1100 | { | |
71be2cbc | 1101 | SV *targ = Nullsv; |
5f05dabc | 1102 | if (LvTARGLEN(sv)) { |
1103 | AV* av = (AV*)LvTARG(sv); | |
71be2cbc | 1104 | if (LvTARGOFF(sv) <= AvFILL(av)) |
1105 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
5f05dabc | 1106 | } |
71be2cbc | 1107 | else |
1108 | targ = LvTARG(sv); | |
1109 | sv_setsv(sv, targ ? targ : &sv_undef); | |
1110 | return 0; | |
1111 | } | |
1112 | ||
1113 | int | |
1114 | magic_setitervar(sv,mg) | |
1115 | SV* sv; | |
1116 | MAGIC* mg; | |
1117 | { | |
1118 | if (LvTARGLEN(sv)) | |
1119 | vivify_itervar(sv); | |
5f05dabc | 1120 | if (LvTARG(sv)) |
1121 | sv_setsv(LvTARG(sv), sv); | |
1122 | return 0; | |
1123 | } | |
1124 | ||
1125 | int | |
71be2cbc | 1126 | magic_freeitervar(sv,mg) |
5f05dabc | 1127 | SV* sv; |
1128 | MAGIC* mg; | |
1129 | { | |
1130 | SvREFCNT_dec(LvTARG(sv)); | |
71be2cbc | 1131 | return 0; |
1132 | } | |
1133 | ||
1134 | void | |
1135 | vivify_itervar(sv) | |
1136 | SV* sv; | |
1137 | { | |
1138 | AV* av; | |
1139 | ||
1140 | if (!LvTARGLEN(sv)) | |
1141 | return; | |
1142 | av = (AV*)LvTARG(sv); | |
1143 | if (LvTARGOFF(sv) <= AvFILL(av)) { | |
1144 | SV** svp = AvARRAY(av) + LvTARGOFF(sv); | |
1145 | LvTARG(sv) = newSVsv(*svp); | |
1146 | SvREFCNT_dec(*svp); | |
1147 | *svp = SvREFCNT_inc(LvTARG(sv)); | |
1148 | } | |
1149 | else | |
1150 | LvTARG(sv) = Nullsv; | |
1151 | SvREFCNT_dec(av); | |
1152 | LvTARGLEN(sv) = 0; | |
5f05dabc | 1153 | } |
1154 | ||
1155 | int | |
93a17b20 LW |
1156 | magic_setmglob(sv,mg) |
1157 | SV* sv; | |
1158 | MAGIC* mg; | |
1159 | { | |
a0d0e21e | 1160 | mg->mg_len = -1; |
c6496cc7 | 1161 | SvSCREAM_off(sv); |
93a17b20 LW |
1162 | return 0; |
1163 | } | |
1164 | ||
1165 | int | |
79072805 LW |
1166 | magic_setbm(sv,mg) |
1167 | SV* sv; | |
1168 | MAGIC* mg; | |
1169 | { | |
463ee0b2 | 1170 | sv_unmagic(sv, 'B'); |
79072805 LW |
1171 | SvVALID_off(sv); |
1172 | return 0; | |
1173 | } | |
1174 | ||
1175 | int | |
55497cff | 1176 | magic_setfm(sv,mg) |
1177 | SV* sv; | |
1178 | MAGIC* mg; | |
1179 | { | |
1180 | sv_unmagic(sv, 'f'); | |
1181 | SvCOMPILED_off(sv); | |
1182 | return 0; | |
1183 | } | |
1184 | ||
1185 | int | |
79072805 LW |
1186 | magic_setuvar(sv,mg) |
1187 | SV* sv; | |
1188 | MAGIC* mg; | |
1189 | { | |
1190 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
1191 | ||
1192 | if (uf && uf->uf_set) | |
1193 | (*uf->uf_set)(uf->uf_index, sv); | |
1194 | return 0; | |
1195 | } | |
1196 | ||
7a4c00b4 | 1197 | #ifdef USE_LOCALE_COLLATE |
79072805 | 1198 | int |
bbce6d69 | 1199 | magic_setcollxfrm(sv,mg) |
1200 | SV* sv; | |
1201 | MAGIC* mg; | |
1202 | { | |
1203 | /* | |
1204 | * René Descartes said "I think not." | |
1205 | * and vanished with a faint plop. | |
1206 | */ | |
7a4c00b4 | 1207 | if (mg->mg_ptr) { |
1208 | Safefree(mg->mg_ptr); | |
1209 | mg->mg_ptr = NULL; | |
1210 | mg->mg_len = -1; | |
1211 | } | |
bbce6d69 | 1212 | return 0; |
1213 | } | |
7a4c00b4 | 1214 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 1215 | |
1216 | int | |
79072805 LW |
1217 | magic_set(sv,mg) |
1218 | SV* sv; | |
1219 | MAGIC* mg; | |
1220 | { | |
1221 | register char *s; | |
1222 | I32 i; | |
8990e307 | 1223 | STRLEN len; |
79072805 | 1224 | switch (*mg->mg_ptr) { |
748a9306 LW |
1225 | case '\001': /* ^A */ |
1226 | sv_setsv(bodytarget, sv); | |
1227 | break; | |
79072805 | 1228 | case '\004': /* ^D */ |
8990e307 | 1229 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000; |
79072805 LW |
1230 | DEBUG_x(dump_all()); |
1231 | break; | |
28f23441 | 1232 | case '\005': /* ^E */ |
1233 | #ifdef VMS | |
1234 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
1235 | #else | |
f86702cc | 1236 | /* will anyone ever use this? */ |
1237 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
28f23441 | 1238 | #endif |
1239 | break; | |
79072805 | 1240 | case '\006': /* ^F */ |
463ee0b2 | 1241 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 1242 | break; |
a0d0e21e LW |
1243 | case '\010': /* ^H */ |
1244 | hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
1245 | break; | |
79072805 LW |
1246 | case '\t': /* ^I */ |
1247 | if (inplace) | |
1248 | Safefree(inplace); | |
1249 | if (SvOK(sv)) | |
a0d0e21e | 1250 | inplace = savepv(SvPV(sv,na)); |
79072805 LW |
1251 | else |
1252 | inplace = Nullch; | |
1253 | break; | |
28f23441 | 1254 | case '\017': /* ^O */ |
1255 | if (osname) | |
1256 | Safefree(osname); | |
1257 | if (SvOK(sv)) | |
1258 | osname = savepv(SvPV(sv,na)); | |
1259 | else | |
1260 | osname = Nullch; | |
1261 | break; | |
79072805 | 1262 | case '\020': /* ^P */ |
463ee0b2 | 1263 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1264 | if (i != perldb) { |
1265 | if (perldb) | |
1266 | oldlastpm = curpm; | |
1267 | else | |
1268 | curpm = oldlastpm; | |
1269 | } | |
1270 | perldb = i; | |
1271 | break; | |
f86702cc | 1272 | case '\023': /* ^S */ |
1273 | STATUS_NATIVE_SET(SvIOK(sv) ? SvUVX(sv) : sv_2uv(sv)); | |
1274 | break; | |
79072805 | 1275 | case '\024': /* ^T */ |
88e89b8a | 1276 | #ifdef BIG_TIME |
1277 | basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); | |
1278 | #else | |
85e6fe83 | 1279 | basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 1280 | #endif |
79072805 LW |
1281 | break; |
1282 | case '\027': /* ^W */ | |
463ee0b2 | 1283 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1284 | break; |
1285 | case '.': | |
748a9306 LW |
1286 | if (localizing) { |
1287 | if (localizing == 1) | |
1288 | save_sptr((SV**)&last_in_gv); | |
1289 | } | |
88e89b8a | 1290 | else if (SvOK(sv) && GvIO(last_in_gv)) |
a0d0e21e | 1291 | IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv); |
79072805 LW |
1292 | break; |
1293 | case '^': | |
a0d0e21e LW |
1294 | Safefree(IoTOP_NAME(GvIOp(defoutgv))); |
1295 | IoTOP_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1296 | IoTOP_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1297 | break; |
1298 | case '~': | |
a0d0e21e LW |
1299 | Safefree(IoFMT_NAME(GvIOp(defoutgv))); |
1300 | IoFMT_NAME(GvIOp(defoutgv)) = s = savepv(SvPV(sv,na)); | |
1301 | IoFMT_GV(GvIOp(defoutgv)) = gv_fetchpv(s,TRUE, SVt_PVIO); | |
79072805 LW |
1302 | break; |
1303 | case '=': | |
a0d0e21e | 1304 | IoPAGE_LEN(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1305 | break; |
1306 | case '-': | |
a0d0e21e LW |
1307 | IoLINES_LEFT(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
1308 | if (IoLINES_LEFT(GvIOp(defoutgv)) < 0L) | |
1309 | IoLINES_LEFT(GvIOp(defoutgv)) = 0L; | |
79072805 LW |
1310 | break; |
1311 | case '%': | |
a0d0e21e | 1312 | IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1313 | break; |
1314 | case '|': | |
a0d0e21e | 1315 | IoFLAGS(GvIOp(defoutgv)) &= ~IOf_FLUSH; |
463ee0b2 | 1316 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) != 0) { |
a0d0e21e | 1317 | IoFLAGS(GvIOp(defoutgv)) |= IOf_FLUSH; |
79072805 LW |
1318 | } |
1319 | break; | |
1320 | case '*': | |
463ee0b2 | 1321 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1322 | multiline = (i != 0); |
1323 | break; | |
1324 | case '/': | |
c07a80fd | 1325 | SvREFCNT_dec(nrs); |
1326 | nrs = newSVsv(sv); | |
1327 | SvREFCNT_dec(rs); | |
1328 | rs = SvREFCNT_inc(nrs); | |
79072805 LW |
1329 | break; |
1330 | case '\\': | |
1331 | if (ors) | |
1332 | Safefree(ors); | |
e3c19b7b CS |
1333 | if (SvOK(sv) || SvGMAGICAL(sv)) |
1334 | ors = savepv(SvPV(sv,orslen)); | |
1335 | else { | |
1336 | ors = Nullch; | |
1337 | orslen = 0; | |
1338 | } | |
79072805 LW |
1339 | break; |
1340 | case ',': | |
1341 | if (ofs) | |
1342 | Safefree(ofs); | |
a0d0e21e | 1343 | ofs = savepv(SvPV(sv, ofslen)); |
79072805 LW |
1344 | break; |
1345 | case '#': | |
1346 | if (ofmt) | |
1347 | Safefree(ofmt); | |
a0d0e21e | 1348 | ofmt = savepv(SvPV(sv,na)); |
79072805 LW |
1349 | break; |
1350 | case '[': | |
a0d0e21e | 1351 | compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1352 | break; |
1353 | case '?': | |
91e9c03f | 1354 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
1355 | break; |
1356 | case '!': | |
f86702cc | 1357 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), |
1358 | (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno); | |
79072805 LW |
1359 | break; |
1360 | case '<': | |
463ee0b2 | 1361 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1362 | if (delaymagic) { |
1363 | delaymagic |= DM_RUID; | |
1364 | break; /* don't do magic till later */ | |
1365 | } | |
1366 | #ifdef HAS_SETRUID | |
85e6fe83 | 1367 | (void)setruid((Uid_t)uid); |
79072805 LW |
1368 | #else |
1369 | #ifdef HAS_SETREUID | |
85e6fe83 | 1370 | (void)setreuid((Uid_t)uid, (Uid_t)-1); |
748a9306 | 1371 | #else |
85e6fe83 LW |
1372 | #ifdef HAS_SETRESUID |
1373 | (void)setresuid((Uid_t)uid, (Uid_t)-1, (Uid_t)-1); | |
79072805 LW |
1374 | #else |
1375 | if (uid == euid) /* special case $< = $> */ | |
1376 | (void)setuid(uid); | |
a0d0e21e LW |
1377 | else { |
1378 | uid = (I32)getuid(); | |
463ee0b2 | 1379 | croak("setruid() not implemented"); |
a0d0e21e | 1380 | } |
79072805 LW |
1381 | #endif |
1382 | #endif | |
85e6fe83 | 1383 | #endif |
748a9306 | 1384 | uid = (I32)getuid(); |
4633a7c4 | 1385 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1386 | break; |
1387 | case '>': | |
463ee0b2 | 1388 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1389 | if (delaymagic) { |
1390 | delaymagic |= DM_EUID; | |
1391 | break; /* don't do magic till later */ | |
1392 | } | |
1393 | #ifdef HAS_SETEUID | |
85e6fe83 | 1394 | (void)seteuid((Uid_t)euid); |
79072805 LW |
1395 | #else |
1396 | #ifdef HAS_SETREUID | |
85e6fe83 LW |
1397 | (void)setreuid((Uid_t)-1, (Uid_t)euid); |
1398 | #else | |
1399 | #ifdef HAS_SETRESUID | |
1400 | (void)setresuid((Uid_t)-1, (Uid_t)euid, (Uid_t)-1); | |
79072805 LW |
1401 | #else |
1402 | if (euid == uid) /* special case $> = $< */ | |
1403 | setuid(euid); | |
a0d0e21e LW |
1404 | else { |
1405 | euid = (I32)geteuid(); | |
463ee0b2 | 1406 | croak("seteuid() not implemented"); |
a0d0e21e | 1407 | } |
79072805 LW |
1408 | #endif |
1409 | #endif | |
85e6fe83 | 1410 | #endif |
79072805 | 1411 | euid = (I32)geteuid(); |
4633a7c4 | 1412 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1413 | break; |
1414 | case '(': | |
463ee0b2 | 1415 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1416 | if (delaymagic) { |
1417 | delaymagic |= DM_RGID; | |
1418 | break; /* don't do magic till later */ | |
1419 | } | |
1420 | #ifdef HAS_SETRGID | |
85e6fe83 | 1421 | (void)setrgid((Gid_t)gid); |
79072805 LW |
1422 | #else |
1423 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1424 | (void)setregid((Gid_t)gid, (Gid_t)-1); |
1425 | #else | |
1426 | #ifdef HAS_SETRESGID | |
1427 | (void)setresgid((Gid_t)gid, (Gid_t)-1, (Gid_t) 1); | |
79072805 LW |
1428 | #else |
1429 | if (gid == egid) /* special case $( = $) */ | |
1430 | (void)setgid(gid); | |
748a9306 LW |
1431 | else { |
1432 | gid = (I32)getgid(); | |
463ee0b2 | 1433 | croak("setrgid() not implemented"); |
748a9306 | 1434 | } |
79072805 LW |
1435 | #endif |
1436 | #endif | |
85e6fe83 | 1437 | #endif |
79072805 | 1438 | gid = (I32)getgid(); |
4633a7c4 | 1439 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1440 | break; |
1441 | case ')': | |
463ee0b2 | 1442 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
1443 | if (delaymagic) { |
1444 | delaymagic |= DM_EGID; | |
1445 | break; /* don't do magic till later */ | |
1446 | } | |
1447 | #ifdef HAS_SETEGID | |
85e6fe83 | 1448 | (void)setegid((Gid_t)egid); |
79072805 LW |
1449 | #else |
1450 | #ifdef HAS_SETREGID | |
85e6fe83 LW |
1451 | (void)setregid((Gid_t)-1, (Gid_t)egid); |
1452 | #else | |
1453 | #ifdef HAS_SETRESGID | |
1454 | (void)setresgid((Gid_t)-1, (Gid_t)egid, (Gid_t)-1); | |
79072805 LW |
1455 | #else |
1456 | if (egid == gid) /* special case $) = $( */ | |
1457 | (void)setgid(egid); | |
748a9306 LW |
1458 | else { |
1459 | egid = (I32)getegid(); | |
463ee0b2 | 1460 | croak("setegid() not implemented"); |
748a9306 | 1461 | } |
79072805 LW |
1462 | #endif |
1463 | #endif | |
85e6fe83 | 1464 | #endif |
79072805 | 1465 | egid = (I32)getegid(); |
4633a7c4 | 1466 | tainting |= (uid && (euid != uid || egid != gid)); |
79072805 LW |
1467 | break; |
1468 | case ':': | |
a0d0e21e | 1469 | chopset = SvPV_force(sv,na); |
79072805 LW |
1470 | break; |
1471 | case '0': | |
1472 | if (!origalen) { | |
1473 | s = origargv[0]; | |
1474 | s += strlen(s); | |
1475 | /* See if all the arguments are contiguous in memory */ | |
1476 | for (i = 1; i < origargc; i++) { | |
1477 | if (origargv[i] == s + 1) | |
1478 | s += strlen(++s); /* this one is ok too */ | |
1479 | } | |
bbce6d69 | 1480 | /* can grab env area too? */ |
1481 | if (origenviron && origenviron[0] == s + 1) { | |
79072805 LW |
1482 | my_setenv("NoNeSuCh", Nullch); |
1483 | /* force copy of environment */ | |
1484 | for (i = 0; origenviron[i]; i++) | |
1485 | if (origenviron[i] == s + 1) | |
1486 | s += strlen(++s); | |
1487 | } | |
1488 | origalen = s - origargv[0]; | |
1489 | } | |
a0d0e21e | 1490 | s = SvPV_force(sv,len); |
8990e307 | 1491 | i = len; |
79072805 LW |
1492 | if (i >= origalen) { |
1493 | i = origalen; | |
1494 | SvCUR_set(sv, i); | |
1495 | *SvEND(sv) = '\0'; | |
1496 | Copy(s, origargv[0], i, char); | |
1497 | } | |
1498 | else { | |
1499 | Copy(s, origargv[0], i, char); | |
1500 | s = origargv[0]+i; | |
1501 | *s++ = '\0'; | |
1502 | while (++i < origalen) | |
8990e307 LW |
1503 | *s++ = ' '; |
1504 | s = origargv[0]+i; | |
ed6116ce | 1505 | for (i = 1; i < origargc; i++) |
8990e307 | 1506 | origargv[i] = Nullch; |
79072805 LW |
1507 | } |
1508 | break; | |
1509 | } | |
1510 | return 0; | |
1511 | } | |
1512 | ||
1513 | I32 | |
1514 | whichsig(sig) | |
1515 | char *sig; | |
1516 | { | |
1517 | register char **sigv; | |
1518 | ||
1519 | for (sigv = sig_name+1; *sigv; sigv++) | |
1520 | if (strEQ(sig,*sigv)) | |
8e07c86e | 1521 | return sig_num[sigv - sig_name]; |
79072805 LW |
1522 | #ifdef SIGCLD |
1523 | if (strEQ(sig,"CHLD")) | |
1524 | return SIGCLD; | |
1525 | #endif | |
1526 | #ifdef SIGCHLD | |
1527 | if (strEQ(sig,"CLD")) | |
1528 | return SIGCHLD; | |
1529 | #endif | |
1530 | return 0; | |
1531 | } | |
1532 | ||
ecfc5424 | 1533 | Signal_t |
79072805 | 1534 | sighandler(sig) |
a0d0e21e | 1535 | int sig; |
79072805 LW |
1536 | { |
1537 | dSP; | |
1538 | GV *gv; | |
a0d0e21e | 1539 | HV *st; |
79072805 LW |
1540 | SV *sv; |
1541 | CV *cv; | |
79072805 | 1542 | AV *oldstack; |
760ac839 LW |
1543 | |
1544 | if(!psig_ptr[sig]) | |
1545 | die("Signal SIG%s received, but no signal handler set.\n", | |
1546 | sig_name[sig]); | |
79072805 | 1547 | |
88e89b8a | 1548 | cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE); |
a0d0e21e | 1549 | if (!cv || !CvROOT(cv)) { |
79072805 LW |
1550 | if (dowarn) |
1551 | warn("SIG%s handler \"%s\" not defined.\n", | |
88e89b8a | 1552 | sig_name[sig], GvENAME(gv) ); |
79072805 LW |
1553 | return; |
1554 | } | |
1555 | ||
88e89b8a | 1556 | oldstack = curstack; |
1557 | if (curstack != signalstack) | |
a0d0e21e | 1558 | AvFILL(signalstack) = 0; |
88e89b8a | 1559 | SWITCHSTACK(curstack, signalstack); |
79072805 | 1560 | |
88e89b8a | 1561 | if(psig_name[sig]) |
1562 | sv = SvREFCNT_inc(psig_name[sig]); | |
1563 | else { | |
1564 | sv = sv_newmortal(); | |
1565 | sv_setpv(sv,sig_name[sig]); | |
1566 | } | |
a0d0e21e | 1567 | PUSHMARK(sp); |
79072805 | 1568 | PUSHs(sv); |
79072805 | 1569 | PUTBACK; |
a0d0e21e LW |
1570 | |
1571 | perl_call_sv((SV*)cv, G_DISCARD); | |
79072805 LW |
1572 | |
1573 | SWITCHSTACK(signalstack, oldstack); | |
79072805 LW |
1574 | |
1575 | return; | |
1576 | } |