https://perl5.git.perl.org / perl5.git / blame
| Commit | Line | Data |
|---|---|---|
| 79072805 LW |
1 | /* $RCSfile: hash.c,v $$Revision: 4.1 $$Date: 92/08/07 18:21:48 $ |
| 2 | * | |
| 3 | * Copyright (c) 1993, Larry Wall | |
| 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 | * | |
| 8 | * $Log: hash.c,v $ | |
| 9 | */ | |
| 10 | ||
| 11 | #include "EXTERN.h" | |
| 12 | #include "perl.h" | |
| 13 | ||
| 14 | int | |
| 15 | mg_get(sv) | |
| 16 | SV* sv; | |
| 17 | { | |
| 18 | MAGIC* mg; | |
| 463ee0b2 LW |
19 | |
| 20 | SvMAGICAL_off(sv); | |
| 21 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
| 22 | SvFLAGS(sv) |= SvPRIVATE(sv) & (SVf_IOK|SVf_NOK|SVf_POK); | |
| 23 | SvPRIVATE(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
| 24 | ||
| 79072805 LW |
25 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
| 26 | MGVTBL* vtbl = mg->mg_virtual; | |
| 27 | if (vtbl && vtbl->svt_get) | |
| 28 | (*vtbl->svt_get)(sv, mg); | |
| 29 | } | |
| 463ee0b2 LW |
30 | |
| 31 | SvMAGICAL_on(sv); | |
| 32 | SvPRIVATE(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
| 33 | SvPRIVATE(sv) |= SvFLAGS(sv) & (SVf_IOK|SVf_NOK|SVf_POK); | |
| 34 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
| 35 | ||
| 79072805 LW |
36 | return 0; |
| 37 | } | |
| 38 | ||
| 39 | int | |
| 40 | mg_set(sv) | |
| 41 | SV* sv; | |
| 42 | { | |
| 43 | MAGIC* mg; | |
| 463ee0b2 LW |
44 | MAGIC* nextmg; |
| 45 | ||
| 46 | SvMAGICAL_off(sv); | |
| 47 | ||
| 48 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
| 79072805 | 49 | MGVTBL* vtbl = mg->mg_virtual; |
| 463ee0b2 | 50 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
| 79072805 LW |
51 | if (vtbl && vtbl->svt_set) |
| 52 | (*vtbl->svt_set)(sv, mg); | |
| 53 | } | |
| 463ee0b2 LW |
54 | |
| 55 | if (SvMAGIC(sv)) { | |
| 56 | SvMAGICAL_on(sv); | |
| 57 | /* SvPRIVATE(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); */ | |
| 58 | SvPRIVATE(sv) |= SvFLAGS(sv) & (SVf_IOK|SVf_NOK|SVf_POK); | |
| 59 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
| 60 | } | |
| 61 | ||
| 79072805 LW |
62 | return 0; |
| 63 | } | |
| 64 | ||
| 65 | U32 | |
| 66 | mg_len(sv) | |
| 67 | SV* sv; | |
| 68 | { | |
| 69 | MAGIC* mg; | |
| 463ee0b2 LW |
70 | char *s; |
| 71 | STRLEN len; | |
| 72 | ||
| 73 | SvMAGICAL_off(sv); | |
| 74 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
| 75 | SvFLAGS(sv) |= SvPRIVATE(sv) & (SVf_IOK|SVf_NOK|SVf_POK); | |
| 76 | SvPRIVATE(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
| 77 | ||
| 79072805 LW |
78 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
| 79 | MGVTBL* vtbl = mg->mg_virtual; | |
| 80 | if (vtbl && vtbl->svt_len) | |
| 81 | return (*vtbl->svt_len)(sv, mg); | |
| 82 | } | |
| 93a17b20 | 83 | mg_get(sv); |
| 463ee0b2 LW |
84 | s = SvPV(sv, len); |
| 85 | ||
| 86 | SvMAGICAL_on(sv); | |
| 87 | SvPRIVATE(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
| 88 | SvPRIVATE(sv) |= SvFLAGS(sv) & (SVf_IOK|SVf_NOK|SVf_POK); | |
| 89 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
| 90 | ||
| 91 | return len; | |
| 79072805 LW |
92 | } |
| 93 | ||
| 94 | int | |
| 95 | mg_clear(sv) | |
| 96 | SV* sv; | |
| 97 | { | |
| 98 | MAGIC* mg; | |
| 463ee0b2 LW |
99 | |
| 100 | SvMAGICAL_off(sv); | |
| 101 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
| 102 | SvFLAGS(sv) |= SvPRIVATE(sv) & (SVf_IOK|SVf_NOK|SVf_POK); | |
| 103 | SvPRIVATE(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
| 104 | ||
| 79072805 LW |
105 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
| 106 | MGVTBL* vtbl = mg->mg_virtual; | |
| 107 | if (vtbl && vtbl->svt_clear) | |
| 108 | (*vtbl->svt_clear)(sv, mg); | |
| 109 | } | |
| 463ee0b2 LW |
110 | |
| 111 | SvMAGICAL_on(sv); | |
| 112 | SvPRIVATE(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
| 113 | SvPRIVATE(sv) |= SvFLAGS(sv) & (SVf_IOK|SVf_NOK|SVf_POK); | |
| 114 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
| 115 | ||
| 79072805 LW |
116 | return 0; |
| 117 | } | |
| 118 | ||
| 93a17b20 LW |
119 | MAGIC* |
| 120 | mg_find(sv, type) | |
| 121 | SV* sv; | |
| 122 | char type; | |
| 123 | { | |
| 124 | MAGIC* mg; | |
| 93a17b20 LW |
125 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
| 126 | if (mg->mg_type == type) | |
| 127 | return mg; | |
| 128 | } | |
| 129 | return 0; | |
| 130 | } | |
| 131 | ||
| 79072805 | 132 | int |
| 463ee0b2 | 133 | mg_copy(sv, nsv, key, klen) |
| 79072805 | 134 | SV* sv; |
| 463ee0b2 LW |
135 | SV* nsv; |
| 136 | char *key; | |
| 137 | STRLEN klen; | |
| 79072805 | 138 | { |
| 463ee0b2 | 139 | int count = 0; |
| 79072805 | 140 | MAGIC* mg; |
| 463ee0b2 LW |
141 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
| 142 | if (isUPPER(mg->mg_type)) { | |
| 143 | sv_magic(nsv, mg->mg_obj, tolower(mg->mg_type), key, klen); | |
| 144 | count++; | |
| 79072805 | 145 | } |
| 79072805 | 146 | } |
| 463ee0b2 | 147 | return count; |
| 79072805 LW |
148 | } |
| 149 | ||
| 150 | int | |
| 463ee0b2 | 151 | mg_free(sv) |
| 79072805 LW |
152 | SV* sv; |
| 153 | { | |
| 154 | MAGIC* mg; | |
| 155 | MAGIC* moremagic; | |
| 156 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
| 157 | MGVTBL* vtbl = mg->mg_virtual; | |
| 158 | moremagic = mg->mg_moremagic; | |
| 159 | if (vtbl && vtbl->svt_free) | |
| 160 | (*vtbl->svt_free)(sv, mg); | |
| 93a17b20 | 161 | if (mg->mg_ptr && mg->mg_type != 'g') |
| 79072805 | 162 | Safefree(mg->mg_ptr); |
| 463ee0b2 | 163 | sv_free(mg->mg_obj); |
| 79072805 LW |
164 | Safefree(mg); |
| 165 | } | |
| 166 | SvMAGIC(sv) = 0; | |
| 167 | return 0; | |
| 168 | } | |
| 169 | ||
| 170 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) | |
| 171 | #include <signal.h> | |
| 172 | #endif | |
| 173 | ||
| 174 | #ifdef VOIDSIG | |
| 175 | #define handlertype void | |
| 176 | #else | |
| 177 | #define handlertype int | |
| 178 | #endif | |
| 179 | ||
| 180 | static handlertype sighandler(); | |
| 181 | ||
| 93a17b20 LW |
182 | U32 |
| 183 | magic_len(sv, mg) | |
| 184 | SV *sv; | |
| 185 | MAGIC *mg; | |
| 186 | { | |
| 187 | register I32 paren; | |
| 188 | register char *s; | |
| 189 | register I32 i; | |
| 190 | ||
| 191 | switch (*mg->mg_ptr) { | |
| 192 | case '1': case '2': case '3': case '4': | |
| 193 | case '5': case '6': case '7': case '8': case '9': case '&': | |
| 194 | if (curpm) { | |
| 195 | paren = atoi(mg->mg_ptr); | |
| 196 | getparen: | |
| 197 | if (curpm->op_pmregexp && | |
| 198 | paren <= curpm->op_pmregexp->nparens && | |
| 199 | (s = curpm->op_pmregexp->startp[paren]) ) { | |
| 200 | i = curpm->op_pmregexp->endp[paren] - s; | |
| 201 | if (i >= 0) | |
| 202 | return i; | |
| 203 | else | |
| 204 | return 0; | |
| 205 | } | |
| 206 | else | |
| 207 | return 0; | |
| 208 | } | |
| 209 | break; | |
| 210 | case '+': | |
| 211 | if (curpm) { | |
| 212 | paren = curpm->op_pmregexp->lastparen; | |
| 213 | goto getparen; | |
| 214 | } | |
| 215 | break; | |
| 216 | case '`': | |
| 217 | if (curpm) { | |
| 218 | if (curpm->op_pmregexp && | |
| 219 | (s = curpm->op_pmregexp->subbeg) ) { | |
| 220 | i = curpm->op_pmregexp->startp[0] - s; | |
| 221 | if (i >= 0) | |
| 222 | return i; | |
| 223 | else | |
| 224 | return 0; | |
| 225 | } | |
| 226 | else | |
| 227 | return 0; | |
| 228 | } | |
| 229 | break; | |
| 230 | case '\'': | |
| 231 | if (curpm) { | |
| 232 | if (curpm->op_pmregexp && | |
| 233 | (s = curpm->op_pmregexp->endp[0]) ) { | |
| 234 | return (STRLEN) (curpm->op_pmregexp->subend - s); | |
| 235 | } | |
| 236 | else | |
| 237 | return 0; | |
| 238 | } | |
| 239 | break; | |
| 240 | case ',': | |
| 241 | return (STRLEN)ofslen; | |
| 242 | case '\\': | |
| 243 | return (STRLEN)orslen; | |
| 244 | } | |
| 245 | magic_get(sv,mg); | |
| 246 | if (!SvPOK(sv) && SvNIOK(sv)) | |
| 463ee0b2 | 247 | sv_2pv(sv, &na); |
| 93a17b20 LW |
248 | if (SvPOK(sv)) |
| 249 | return SvCUR(sv); | |
| 250 | return 0; | |
| 251 | } | |
| 252 | ||
| 79072805 LW |
253 | int |
| 254 | magic_get(sv, mg) | |
| 255 | SV *sv; | |
| 256 | MAGIC *mg; | |
| 257 | { | |
| 258 | register I32 paren; | |
| 259 | register char *s; | |
| 260 | register I32 i; | |
| 261 | ||
| 262 | switch (*mg->mg_ptr) { | |
| 263 | case '\004': /* ^D */ | |
| 264 | sv_setiv(sv,(I32)(debug & 32767)); | |
| 265 | break; | |
| 266 | case '\006': /* ^F */ | |
| 267 | sv_setiv(sv,(I32)maxsysfd); | |
| 268 | break; | |
| 269 | case '\t': /* ^I */ | |
| 270 | if (inplace) | |
| 271 | sv_setpv(sv, inplace); | |
| 272 | else | |
| 273 | sv_setsv(sv,&sv_undef); | |
| 274 | break; | |
| 275 | case '\020': /* ^P */ | |
| 276 | sv_setiv(sv,(I32)perldb); | |
| 277 | break; | |
| 278 | case '\024': /* ^T */ | |
| 279 | sv_setiv(sv,(I32)basetime); | |
| 280 | break; | |
| 281 | case '\027': /* ^W */ | |
| 282 | sv_setiv(sv,(I32)dowarn); | |
| 283 | break; | |
| 284 | case '1': case '2': case '3': case '4': | |
| 285 | case '5': case '6': case '7': case '8': case '9': case '&': | |
| 286 | if (curpm) { | |
| 287 | paren = atoi(GvENAME(mg->mg_obj)); | |
| 288 | getparen: | |
| 289 | if (curpm->op_pmregexp && | |
| 290 | paren <= curpm->op_pmregexp->nparens && | |
| 291 | (s = curpm->op_pmregexp->startp[paren]) ) { | |
| 292 | i = curpm->op_pmregexp->endp[paren] - s; | |
| 293 | if (i >= 0) | |
| 294 | sv_setpvn(sv,s,i); | |
| 295 | else | |
| 296 | sv_setsv(sv,&sv_undef); | |
| 297 | } | |
| 298 | else | |
| 299 | sv_setsv(sv,&sv_undef); | |
| 300 | } | |
| 301 | break; | |
| 302 | case '+': | |
| 303 | if (curpm) { | |
| 304 | paren = curpm->op_pmregexp->lastparen; | |
| 305 | goto getparen; | |
| 306 | } | |
| 307 | break; | |
| 308 | case '`': | |
| 309 | if (curpm) { | |
| 310 | if (curpm->op_pmregexp && | |
| 311 | (s = curpm->op_pmregexp->subbeg) ) { | |
| 312 | i = curpm->op_pmregexp->startp[0] - s; | |
| 313 | if (i >= 0) | |
| 314 | sv_setpvn(sv,s,i); | |
| 315 | else | |
| 316 | sv_setpvn(sv,"",0); | |
| 317 | } | |
| 318 | else | |
| 319 | sv_setpvn(sv,"",0); | |
| 320 | } | |
| 321 | break; | |
| 322 | case '\'': | |
| 323 | if (curpm) { | |
| 324 | if (curpm->op_pmregexp && | |
| 325 | (s = curpm->op_pmregexp->endp[0]) ) { | |
| 326 | sv_setpvn(sv,s, curpm->op_pmregexp->subend - s); | |
| 327 | } | |
| 328 | else | |
| 329 | sv_setpvn(sv,"",0); | |
| 330 | } | |
| 331 | break; | |
| 332 | case '.': | |
| 333 | #ifndef lint | |
| 334 | if (last_in_gv && GvIO(last_in_gv)) { | |
| 335 | sv_setiv(sv,(I32)GvIO(last_in_gv)->lines); | |
| 336 | } | |
| 337 | #endif | |
| 338 | break; | |
| 339 | case '?': | |
| 340 | sv_setiv(sv,(I32)statusvalue); | |
| 341 | break; | |
| 342 | case '^': | |
| 343 | s = GvIO(defoutgv)->top_name; | |
| 344 | if (s) | |
| 345 | sv_setpv(sv,s); | |
| 346 | else { | |
| 347 | sv_setpv(sv,GvENAME(defoutgv)); | |
| 348 | sv_catpv(sv,"_TOP"); | |
| 349 | } | |
| 350 | break; | |
| 351 | case '~': | |
| 352 | s = GvIO(defoutgv)->fmt_name; | |
| 353 | if (!s) | |
| 354 | s = GvENAME(defoutgv); | |
| 355 | sv_setpv(sv,s); | |
| 356 | break; | |
| 357 | #ifndef lint | |
| 358 | case '=': | |
| 359 | sv_setiv(sv,(I32)GvIO(defoutgv)->page_len); | |
| 360 | break; | |
| 361 | case '-': | |
| 362 | sv_setiv(sv,(I32)GvIO(defoutgv)->lines_left); | |
| 363 | break; | |
| 364 | case '%': | |
| 365 | sv_setiv(sv,(I32)GvIO(defoutgv)->page); | |
| 366 | break; | |
| 367 | #endif | |
| 368 | case ':': | |
| 369 | break; | |
| 370 | case '/': | |
| 371 | break; | |
| 372 | case '[': | |
| 373 | sv_setiv(sv,(I32)arybase); | |
| 374 | break; | |
| 375 | case '|': | |
| 376 | if (!GvIO(defoutgv)) | |
| 377 | GvIO(defoutgv) = newIO(); | |
| 378 | sv_setiv(sv, (GvIO(defoutgv)->flags & IOf_FLUSH) != 0 ); | |
| 379 | break; | |
| 380 | case ',': | |
| 381 | sv_setpvn(sv,ofs,ofslen); | |
| 382 | break; | |
| 383 | case '\\': | |
| 384 | sv_setpvn(sv,ors,orslen); | |
| 385 | break; | |
| 386 | case '#': | |
| 387 | sv_setpv(sv,ofmt); | |
| 388 | break; | |
| 389 | case '!': | |
| 390 | sv_setnv(sv,(double)errno); | |
| 391 | sv_setpv(sv, errno ? strerror(errno) : ""); | |
| 392 | SvNOK_on(sv); /* what a wonderful hack! */ | |
| 393 | break; | |
| 394 | case '<': | |
| 395 | sv_setiv(sv,(I32)uid); | |
| 396 | break; | |
| 397 | case '>': | |
| 398 | sv_setiv(sv,(I32)euid); | |
| 399 | break; | |
| 400 | case '(': | |
| 401 | s = buf; | |
| 402 | (void)sprintf(s,"%d",(int)gid); | |
| 403 | goto add_groups; | |
| 404 | case ')': | |
| 405 | s = buf; | |
| 406 | (void)sprintf(s,"%d",(int)egid); | |
| 407 | add_groups: | |
| 408 | while (*s) s++; | |
| 409 | #ifdef HAS_GETGROUPS | |
| 410 | #ifndef NGROUPS | |
| 411 | #define NGROUPS 32 | |
| 412 | #endif | |
| 413 | { | |
| 414 | GROUPSTYPE gary[NGROUPS]; | |
| 415 | ||
| 416 | i = getgroups(NGROUPS,gary); | |
| 417 | while (--i >= 0) { | |
| 418 | (void)sprintf(s," %ld", (long)gary[i]); | |
| 419 | while (*s) s++; | |
| 420 | } | |
| 421 | } | |
| 422 | #endif | |
| 423 | sv_setpv(sv,buf); | |
| 424 | break; | |
| 425 | case '*': | |
| 426 | break; | |
| 427 | case '0': | |
| 428 | break; | |
| 429 | } | |
| 430 | } | |
| 431 | ||
| 432 | int | |
| 433 | magic_getuvar(sv, mg) | |
| 434 | SV *sv; | |
| 435 | MAGIC *mg; | |
| 436 | { | |
| 437 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
| 438 | ||
| 439 | if (uf && uf->uf_val) | |
| 440 | (*uf->uf_val)(uf->uf_index, sv); | |
| 441 | return 0; | |
| 442 | } | |
| 443 | ||
| 444 | int | |
| 445 | magic_setenv(sv,mg) | |
| 446 | SV* sv; | |
| 447 | MAGIC* mg; | |
| 448 | { | |
| 449 | register char *s; | |
| 450 | I32 i; | |
| 463ee0b2 | 451 | s = SvPVX(sv); |
| 79072805 LW |
452 | my_setenv(mg->mg_ptr,s); |
| 453 | /* And you'll never guess what the dog had */ | |
| 454 | /* in its mouth... */ | |
| 463ee0b2 LW |
455 | if (tainting) { |
| 456 | if (s && strEQ(mg->mg_ptr,"PATH")) { | |
| 457 | char *strend = SvEND(sv); | |
| 458 | ||
| 459 | while (s < strend) { | |
| 460 | s = cpytill(tokenbuf,s,strend,':',&i); | |
| 461 | s++; | |
| 462 | if (*tokenbuf != '/' | |
| 463 | || (stat(tokenbuf,&statbuf) && (statbuf.st_mode & 2)) ) | |
| 464 | SvPRIVATE(sv) |= SVp_TAINTEDDIR; | |
| 465 | } | |
| 79072805 LW |
466 | } |
| 467 | } | |
| 79072805 LW |
468 | return 0; |
| 469 | } | |
| 470 | ||
| 471 | int | |
| 472 | magic_setsig(sv,mg) | |
| 473 | SV* sv; | |
| 474 | MAGIC* mg; | |
| 475 | { | |
| 476 | register char *s; | |
| 477 | I32 i; | |
| 463ee0b2 | 478 | s = SvPVX(sv); |
| 79072805 LW |
479 | i = whichsig(mg->mg_ptr); /* ...no, a brick */ |
| 480 | if (!i && (dowarn || strEQ(mg->mg_ptr,"ALARM"))) | |
| 481 | warn("No such signal: SIG%s", mg->mg_ptr); | |
| 482 | if (strEQ(s,"IGNORE")) | |
| 483 | #ifndef lint | |
| 484 | (void)signal(i,SIG_IGN); | |
| 485 | #else | |
| 486 | ; | |
| 487 | #endif | |
| 488 | else if (strEQ(s,"DEFAULT") || !*s) | |
| 489 | (void)signal(i,SIG_DFL); | |
| 490 | else { | |
| 491 | (void)signal(i,sighandler); | |
| 93a17b20 | 492 | if (!strchr(s,'\'')) { |
| 79072805 LW |
493 | sprintf(tokenbuf, "main'%s",s); |
| 494 | sv_setpv(sv,tokenbuf); | |
| 495 | } | |
| 496 | } | |
| 497 | return 0; | |
| 498 | } | |
| 499 | ||
| 500 | int | |
| 463ee0b2 | 501 | magic_setisa(sv,mg) |
| 79072805 LW |
502 | SV* sv; |
| 503 | MAGIC* mg; | |
| 504 | { | |
| 463ee0b2 LW |
505 | sub_generation++; |
| 506 | return 0; | |
| 507 | } | |
| 508 | ||
| 509 | int | |
| 510 | magic_getpack(sv,mg) | |
| 511 | SV* sv; | |
| 512 | MAGIC* mg; | |
| 513 | { | |
| 514 | SV* rv = mg->mg_obj; | |
| ed6116ce | 515 | HV* stash = SvSTASH(SvRV(rv)); |
| 463ee0b2 LW |
516 | GV* gv = gv_fetchmethod(stash, "fetch"); |
| 517 | dSP; | |
| 518 | BINOP myop; | |
| 519 | ||
| 520 | if (!gv || !GvCV(gv)) { | |
| 521 | croak("No fetch method for magical variable in package \"%s\"", | |
| 522 | HvNAME(stash)); | |
| 523 | } | |
| 524 | Zero(&myop, 1, BINOP); | |
| 525 | myop.op_last = (OP *) &myop; | |
| 526 | myop.op_next = Nullop; | |
| 527 | myop.op_flags = OPf_STACKED; | |
| 528 | ||
| 529 | ENTER; | |
| 530 | SAVESPTR(op); | |
| 531 | op = (OP *) &myop; | |
| 532 | PUTBACK; | |
| 533 | pp_pushmark(); | |
| 534 | ||
| 535 | EXTEND(sp, 4); | |
| 536 | PUSHs(gv); | |
| 537 | PUSHs(rv); | |
| 538 | if (mg->mg_ptr) | |
| 539 | PUSHs(sv_mortalcopy(newSVpv(mg->mg_ptr, mg->mg_len))); | |
| 540 | else if (mg->mg_len >= 0) | |
| 541 | PUSHs(sv_mortalcopy(newSViv(mg->mg_len))); | |
| 542 | PUTBACK; | |
| 543 | ||
| 544 | if (op = pp_entersubr()) | |
| 545 | run(); | |
| 546 | LEAVE; | |
| 547 | SPAGAIN; | |
| 548 | ||
| 549 | sv_setsv(sv, POPs); | |
| 550 | PUTBACK; | |
| 551 | ||
| 552 | return 0; | |
| 553 | } | |
| 554 | ||
| 555 | int | |
| 556 | magic_setpack(sv,mg) | |
| 557 | SV* sv; | |
| 558 | MAGIC* mg; | |
| 559 | { | |
| 560 | SV* rv = mg->mg_obj; | |
| ed6116ce | 561 | HV* stash = SvSTASH(SvRV(rv)); |
| 463ee0b2 LW |
562 | GV* gv = gv_fetchmethod(stash, "store"); |
| 563 | dSP; | |
| 564 | BINOP myop; | |
| 565 | ||
| 566 | if (!gv || !GvCV(gv)) { | |
| 567 | croak("No store method for magical variable in package \"%s\"", | |
| 568 | HvNAME(stash)); | |
| 569 | } | |
| 570 | Zero(&myop, 1, BINOP); | |
| 571 | myop.op_last = (OP *) &myop; | |
| 572 | myop.op_next = Nullop; | |
| 573 | myop.op_flags = OPf_STACKED; | |
| 574 | ||
| 575 | ENTER; | |
| 576 | SAVESPTR(op); | |
| 577 | op = (OP *) &myop; | |
| 578 | PUTBACK; | |
| 579 | pp_pushmark(); | |
| 580 | ||
| 581 | EXTEND(sp, 4); | |
| 582 | PUSHs(gv); | |
| 583 | PUSHs(rv); | |
| 584 | if (mg->mg_ptr) | |
| 585 | PUSHs(sv_mortalcopy(newSVpv(mg->mg_ptr, mg->mg_len))); | |
| 586 | else if (mg->mg_len >= 0) | |
| 587 | PUSHs(sv_mortalcopy(newSViv(mg->mg_len))); | |
| 588 | PUSHs(sv); | |
| 589 | PUTBACK; | |
| 590 | ||
| 591 | if (op = pp_entersubr()) | |
| 592 | run(); | |
| 593 | LEAVE; | |
| 594 | SPAGAIN; | |
| 595 | ||
| 596 | POPs; | |
| 597 | PUTBACK; | |
| 598 | ||
| 599 | return 0; | |
| 600 | } | |
| 601 | ||
| 602 | int | |
| 603 | magic_clearpack(sv,mg) | |
| 604 | SV* sv; | |
| 605 | MAGIC* mg; | |
| 606 | { | |
| 607 | SV* rv = mg->mg_obj; | |
| ed6116ce | 608 | HV* stash = SvSTASH(SvRV(rv)); |
| 463ee0b2 LW |
609 | GV* gv = gv_fetchmethod(stash, "delete"); |
| 610 | dSP; | |
| 611 | BINOP myop; | |
| 612 | ||
| 613 | if (!gv || !GvCV(gv)) { | |
| 614 | croak("No delete method for magical variable in package \"%s\"", | |
| 615 | HvNAME(stash)); | |
| 616 | } | |
| 617 | Zero(&myop, 1, BINOP); | |
| 618 | myop.op_last = (OP *) &myop; | |
| 619 | myop.op_next = Nullop; | |
| 620 | myop.op_flags = OPf_STACKED; | |
| 621 | ||
| 622 | ENTER; | |
| 623 | SAVESPTR(op); | |
| 624 | op = (OP *) &myop; | |
| 625 | PUTBACK; | |
| 626 | pp_pushmark(); | |
| 627 | ||
| 628 | EXTEND(sp, 4); | |
| 629 | PUSHs(gv); | |
| 630 | PUSHs(rv); | |
| 631 | if (mg->mg_ptr) | |
| 632 | PUSHs(sv_mortalcopy(newSVpv(mg->mg_ptr, mg->mg_len))); | |
| 633 | else | |
| 634 | PUSHs(sv_mortalcopy(newSViv(mg->mg_len))); | |
| 635 | PUTBACK; | |
| 636 | ||
| 637 | if (op = pp_entersubr()) | |
| 638 | run(); | |
| 639 | LEAVE; | |
| 640 | SPAGAIN; | |
| 641 | ||
| 642 | sv_setsv(sv, POPs); | |
| 643 | PUTBACK; | |
| 644 | ||
| 645 | return 0; | |
| 646 | } | |
| 647 | ||
| 648 | int | |
| 649 | magic_nextpack(sv,mg,key) | |
| 650 | SV* sv; | |
| 651 | MAGIC* mg; | |
| 652 | SV* key; | |
| 653 | { | |
| 654 | SV* rv = mg->mg_obj; | |
| ed6116ce | 655 | HV* stash = SvSTASH(SvRV(rv)); |
| 463ee0b2 LW |
656 | GV* gv = gv_fetchmethod(stash, SvOK(key) ? "nextkey" : "firstkey"); |
| 657 | dSP; | |
| 658 | BINOP myop; | |
| 659 | ||
| 660 | if (!gv || !GvCV(gv)) { | |
| 661 | croak("No fetch method for magical variable in package \"%s\"", | |
| 662 | HvNAME(stash)); | |
| 663 | } | |
| 664 | Zero(&myop, 1, BINOP); | |
| 665 | myop.op_last = (OP *) &myop; | |
| 666 | myop.op_next = Nullop; | |
| 667 | myop.op_flags = OPf_STACKED; | |
| 668 | ||
| 669 | ENTER; | |
| 670 | SAVESPTR(op); | |
| 671 | op = (OP *) &myop; | |
| 672 | PUTBACK; | |
| 673 | pp_pushmark(); | |
| 674 | ||
| 675 | EXTEND(sp, 4); | |
| 676 | PUSHs(gv); | |
| 677 | PUSHs(rv); | |
| 678 | if (SvOK(key)) | |
| 679 | PUSHs(key); | |
| 680 | PUTBACK; | |
| 681 | ||
| 682 | if (op = pp_entersubr()) | |
| 683 | run(); | |
| 684 | LEAVE; | |
| 685 | SPAGAIN; | |
| 686 | ||
| 687 | sv_setsv(key, POPs); | |
| 688 | PUTBACK; | |
| 689 | ||
| 79072805 LW |
690 | return 0; |
| 691 | } | |
| 692 | ||
| 693 | int | |
| 694 | magic_setdbline(sv,mg) | |
| 695 | SV* sv; | |
| 696 | MAGIC* mg; | |
| 697 | { | |
| 698 | OP *o; | |
| 699 | I32 i; | |
| 700 | GV* gv; | |
| 701 | SV** svp; | |
| 702 | ||
| 703 | gv = DBline; | |
| 704 | i = SvTRUE(sv); | |
| 705 | svp = av_fetch(GvAV(gv),atoi(mg->mg_ptr), FALSE); | |
| 93a17b20 LW |
706 | if (svp && SvIOK(*svp) && (o = (OP*)SvSTASH(*svp))) |
| 707 | o->op_private = i; | |
| 79072805 LW |
708 | else |
| 709 | warn("Can't break at that line\n"); | |
| 710 | return 0; | |
| 711 | } | |
| 712 | ||
| 713 | int | |
| 714 | magic_getarylen(sv,mg) | |
| 715 | SV* sv; | |
| 716 | MAGIC* mg; | |
| 717 | { | |
| 718 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + arybase); | |
| 719 | return 0; | |
| 720 | } | |
| 721 | ||
| 722 | int | |
| 723 | magic_setarylen(sv,mg) | |
| 724 | SV* sv; | |
| 725 | MAGIC* mg; | |
| 726 | { | |
| 463ee0b2 | 727 | av_fill((AV*)mg->mg_obj, (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) - arybase); |
| 79072805 LW |
728 | return 0; |
| 729 | } | |
| 730 | ||
| 731 | int | |
| 732 | magic_getglob(sv,mg) | |
| 733 | SV* sv; | |
| 734 | MAGIC* mg; | |
| 735 | { | |
| 736 | gv_efullname(sv,((GV*)sv));/* a gv value, be nice */ | |
| 737 | return 0; | |
| 738 | } | |
| 739 | ||
| 740 | int | |
| 741 | magic_setglob(sv,mg) | |
| 742 | SV* sv; | |
| 743 | MAGIC* mg; | |
| 744 | { | |
| 745 | register char *s; | |
| 746 | GV* gv; | |
| 747 | ||
| 748 | if (!SvOK(sv)) | |
| 749 | return 0; | |
| 463ee0b2 | 750 | s = SvPV(sv, na); |
| 79072805 LW |
751 | if (*s == '*' && s[1]) |
| 752 | s++; | |
| 753 | gv = gv_fetchpv(s,TRUE); | |
| 754 | if (sv == (SV*)gv) | |
| 755 | return 0; | |
| 756 | if (GvGP(sv)) | |
| 757 | gp_free(sv); | |
| 758 | GvGP(sv) = gp_ref(GvGP(gv)); | |
| 759 | if (!GvAV(gv)) | |
| 760 | gv_AVadd(gv); | |
| 761 | if (!GvHV(gv)) | |
| 762 | gv_HVadd(gv); | |
| 763 | if (!GvIO(gv)) | |
| 764 | GvIO(gv) = newIO(); | |
| 765 | return 0; | |
| 766 | } | |
| 767 | ||
| 768 | int | |
| 769 | magic_setsubstr(sv,mg) | |
| 770 | SV* sv; | |
| 771 | MAGIC* mg; | |
| 772 | { | |
| 463ee0b2 | 773 | char *tmps = SvPVX(sv); |
| 79072805 LW |
774 | if (!tmps) |
| 775 | tmps = ""; | |
| 776 | sv_insert(LvTARG(sv),LvTARGOFF(sv),LvTARGLEN(sv), tmps,SvCUR(sv)); | |
| 777 | return 0; | |
| 778 | } | |
| 779 | ||
| 780 | int | |
| 463ee0b2 LW |
781 | magic_gettaint(sv,mg) |
| 782 | SV* sv; | |
| 783 | MAGIC* mg; | |
| 784 | { | |
| 785 | tainted = TRUE; | |
| 786 | return 0; | |
| 787 | } | |
| 788 | ||
| 789 | int | |
| 790 | magic_settaint(sv,mg) | |
| 791 | SV* sv; | |
| 792 | MAGIC* mg; | |
| 793 | { | |
| 794 | if (!tainted) | |
| 795 | sv_unmagic(sv, 't'); | |
| 796 | return 0; | |
| 797 | } | |
| 798 | ||
| 799 | int | |
| 79072805 LW |
800 | magic_setvec(sv,mg) |
| 801 | SV* sv; | |
| 802 | MAGIC* mg; | |
| 803 | { | |
| 804 | do_vecset(sv); /* XXX slurp this routine */ | |
| 805 | return 0; | |
| 806 | } | |
| 807 | ||
| 808 | int | |
| 93a17b20 LW |
809 | magic_setmglob(sv,mg) |
| 810 | SV* sv; | |
| 811 | MAGIC* mg; | |
| 812 | { | |
| 813 | mg->mg_ptr = 0; | |
| 814 | mg->mg_len = 0; | |
| 815 | return 0; | |
| 816 | } | |
| 817 | ||
| 818 | int | |
| 79072805 LW |
819 | magic_setbm(sv,mg) |
| 820 | SV* sv; | |
| 821 | MAGIC* mg; | |
| 822 | { | |
| 463ee0b2 | 823 | sv_unmagic(sv, 'B'); |
| 79072805 LW |
824 | SvVALID_off(sv); |
| 825 | return 0; | |
| 826 | } | |
| 827 | ||
| 828 | int | |
| 829 | magic_setuvar(sv,mg) | |
| 830 | SV* sv; | |
| 831 | MAGIC* mg; | |
| 832 | { | |
| 833 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
| 834 | ||
| 835 | if (uf && uf->uf_set) | |
| 836 | (*uf->uf_set)(uf->uf_index, sv); | |
| 837 | return 0; | |
| 838 | } | |
| 839 | ||
| 840 | int | |
| 841 | magic_set(sv,mg) | |
| 842 | SV* sv; | |
| 843 | MAGIC* mg; | |
| 844 | { | |
| 845 | register char *s; | |
| 846 | I32 i; | |
| 847 | switch (*mg->mg_ptr) { | |
| 848 | case '\004': /* ^D */ | |
| 463ee0b2 | 849 | debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 32768; |
| 79072805 LW |
850 | DEBUG_x(dump_all()); |
| 851 | break; | |
| 852 | case '\006': /* ^F */ | |
| 463ee0b2 | 853 | maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
| 79072805 LW |
854 | break; |
| 855 | case '\t': /* ^I */ | |
| 856 | if (inplace) | |
| 857 | Safefree(inplace); | |
| 858 | if (SvOK(sv)) | |
| 463ee0b2 | 859 | inplace = savestr(SvPVX(sv)); |
| 79072805 LW |
860 | else |
| 861 | inplace = Nullch; | |
| 862 | break; | |
| 863 | case '\020': /* ^P */ | |
| 463ee0b2 | 864 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
| 79072805 LW |
865 | if (i != perldb) { |
| 866 | if (perldb) | |
| 867 | oldlastpm = curpm; | |
| 868 | else | |
| 869 | curpm = oldlastpm; | |
| 870 | } | |
| 871 | perldb = i; | |
| 872 | break; | |
| 873 | case '\024': /* ^T */ | |
| 463ee0b2 | 874 | basetime = (time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
| 79072805 LW |
875 | break; |
| 876 | case '\027': /* ^W */ | |
| 463ee0b2 | 877 | dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
| 79072805 LW |
878 | break; |
| 879 | case '.': | |
| 880 | if (localizing) | |
| 881 | save_sptr((SV**)&last_in_gv); | |
| 882 | break; | |
| 883 | case '^': | |
| 884 | Safefree(GvIO(defoutgv)->top_name); | |
| 463ee0b2 | 885 | GvIO(defoutgv)->top_name = s = savestr(SvPVX(sv)); |
| 79072805 LW |
886 | GvIO(defoutgv)->top_gv = gv_fetchpv(s,TRUE); |
| 887 | break; | |
| 888 | case '~': | |
| 889 | Safefree(GvIO(defoutgv)->fmt_name); | |
| 463ee0b2 | 890 | GvIO(defoutgv)->fmt_name = s = savestr(SvPVX(sv)); |
| 79072805 LW |
891 | GvIO(defoutgv)->fmt_gv = gv_fetchpv(s,TRUE); |
| 892 | break; | |
| 893 | case '=': | |
| 463ee0b2 | 894 | GvIO(defoutgv)->page_len = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
| 79072805 LW |
895 | break; |
| 896 | case '-': | |
| 463ee0b2 | 897 | GvIO(defoutgv)->lines_left = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
| 79072805 LW |
898 | if (GvIO(defoutgv)->lines_left < 0L) |
| 899 | GvIO(defoutgv)->lines_left = 0L; | |
| 900 | break; | |
| 901 | case '%': | |
| 463ee0b2 | 902 | GvIO(defoutgv)->page = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
| 79072805 LW |
903 | break; |
| 904 | case '|': | |
| 905 | if (!GvIO(defoutgv)) | |
| 906 | GvIO(defoutgv) = newIO(); | |
| 907 | GvIO(defoutgv)->flags &= ~IOf_FLUSH; | |
| 463ee0b2 | 908 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) != 0) { |
| 79072805 LW |
909 | GvIO(defoutgv)->flags |= IOf_FLUSH; |
| 910 | } | |
| 911 | break; | |
| 912 | case '*': | |
| 463ee0b2 | 913 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
| 79072805 LW |
914 | multiline = (i != 0); |
| 915 | break; | |
| 916 | case '/': | |
| 917 | if (SvPOK(sv)) { | |
| 463ee0b2 | 918 | nrs = rs = SvPVX(sv); |
| 93a17b20 | 919 | nrslen = rslen = SvCUR(sv); |
| 79072805 | 920 | if (rspara = !rslen) { |
| 93a17b20 LW |
921 | nrs = rs = "\n\n"; |
| 922 | nrslen = rslen = 2; | |
| 79072805 | 923 | } |
| 93a17b20 | 924 | nrschar = rschar = rs[rslen - 1]; |
| 79072805 LW |
925 | } |
| 926 | else { | |
| 93a17b20 LW |
927 | nrschar = rschar = 0777; /* fake a non-existent char */ |
| 928 | nrslen = rslen = 1; | |
| 79072805 LW |
929 | } |
| 930 | break; | |
| 931 | case '\\': | |
| 932 | if (ors) | |
| 933 | Safefree(ors); | |
| 463ee0b2 | 934 | ors = savestr(SvPVX(sv)); |
| 79072805 LW |
935 | orslen = SvCUR(sv); |
| 936 | break; | |
| 937 | case ',': | |
| 938 | if (ofs) | |
| 939 | Safefree(ofs); | |
| 463ee0b2 | 940 | ofs = savestr(SvPVX(sv)); |
| 79072805 LW |
941 | ofslen = SvCUR(sv); |
| 942 | break; | |
| 943 | case '#': | |
| 944 | if (ofmt) | |
| 945 | Safefree(ofmt); | |
| 463ee0b2 | 946 | ofmt = savestr(SvPVX(sv)); |
| 79072805 LW |
947 | break; |
| 948 | case '[': | |
| 463ee0b2 | 949 | arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
| 79072805 LW |
950 | break; |
| 951 | case '?': | |
| 463ee0b2 | 952 | statusvalue = U_S(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
| 79072805 LW |
953 | break; |
| 954 | case '!': | |
| 463ee0b2 | 955 | errno = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); /* will anyone ever use this? */ |
| 79072805 LW |
956 | break; |
| 957 | case '<': | |
| 463ee0b2 | 958 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
| 79072805 LW |
959 | if (delaymagic) { |
| 960 | delaymagic |= DM_RUID; | |
| 961 | break; /* don't do magic till later */ | |
| 962 | } | |
| 963 | #ifdef HAS_SETRUID | |
| 964 | (void)setruid((UIDTYPE)uid); | |
| 965 | #else | |
| 966 | #ifdef HAS_SETREUID | |
| 967 | (void)setreuid((UIDTYPE)uid, (UIDTYPE)-1); | |
| 968 | #else | |
| 969 | if (uid == euid) /* special case $< = $> */ | |
| 970 | (void)setuid(uid); | |
| 971 | else | |
| 463ee0b2 | 972 | croak("setruid() not implemented"); |
| 79072805 LW |
973 | #endif |
| 974 | #endif | |
| 463ee0b2 LW |
975 | uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
| 976 | tainting |= (euid != uid || egid != gid); | |
| 79072805 LW |
977 | break; |
| 978 | case '>': | |
| 463ee0b2 | 979 | euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
| 79072805 LW |
980 | if (delaymagic) { |
| 981 | delaymagic |= DM_EUID; | |
| 982 | break; /* don't do magic till later */ | |
| 983 | } | |
| 984 | #ifdef HAS_SETEUID | |
| 985 | (void)seteuid((UIDTYPE)euid); | |
| 986 | #else | |
| 987 | #ifdef HAS_SETREUID | |
| 988 | (void)setreuid((UIDTYPE)-1, (UIDTYPE)euid); | |
| 989 | #else | |
| 990 | if (euid == uid) /* special case $> = $< */ | |
| 991 | setuid(euid); | |
| 992 | else | |
| 463ee0b2 | 993 | croak("seteuid() not implemented"); |
| 79072805 LW |
994 | #endif |
| 995 | #endif | |
| 996 | euid = (I32)geteuid(); | |
| 463ee0b2 | 997 | tainting |= (euid != uid || egid != gid); |
| 79072805 LW |
998 | break; |
| 999 | case '(': | |
| 463ee0b2 | 1000 | gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
| 79072805 LW |
1001 | if (delaymagic) { |
| 1002 | delaymagic |= DM_RGID; | |
| 1003 | break; /* don't do magic till later */ | |
| 1004 | } | |
| 1005 | #ifdef HAS_SETRGID | |
| 1006 | (void)setrgid((GIDTYPE)gid); | |
| 1007 | #else | |
| 1008 | #ifdef HAS_SETREGID | |
| 1009 | (void)setregid((GIDTYPE)gid, (GIDTYPE)-1); | |
| 1010 | #else | |
| 1011 | if (gid == egid) /* special case $( = $) */ | |
| 1012 | (void)setgid(gid); | |
| 1013 | else | |
| 463ee0b2 | 1014 | croak("setrgid() not implemented"); |
| 79072805 LW |
1015 | #endif |
| 1016 | #endif | |
| 1017 | gid = (I32)getgid(); | |
| 463ee0b2 | 1018 | tainting |= (euid != uid || egid != gid); |
| 79072805 LW |
1019 | break; |
| 1020 | case ')': | |
| 463ee0b2 | 1021 | egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
| 79072805 LW |
1022 | if (delaymagic) { |
| 1023 | delaymagic |= DM_EGID; | |
| 1024 | break; /* don't do magic till later */ | |
| 1025 | } | |
| 1026 | #ifdef HAS_SETEGID | |
| 1027 | (void)setegid((GIDTYPE)egid); | |
| 1028 | #else | |
| 1029 | #ifdef HAS_SETREGID | |
| 1030 | (void)setregid((GIDTYPE)-1, (GIDTYPE)egid); | |
| 1031 | #else | |
| 1032 | if (egid == gid) /* special case $) = $( */ | |
| 1033 | (void)setgid(egid); | |
| 1034 | else | |
| 463ee0b2 | 1035 | croak("setegid() not implemented"); |
| 79072805 LW |
1036 | #endif |
| 1037 | #endif | |
| 1038 | egid = (I32)getegid(); | |
| 463ee0b2 | 1039 | tainting |= (euid != uid || egid != gid); |
| 79072805 LW |
1040 | break; |
| 1041 | case ':': | |
| 463ee0b2 | 1042 | chopset = SvPVX(sv); |
| 79072805 LW |
1043 | break; |
| 1044 | case '0': | |
| 1045 | if (!origalen) { | |
| 1046 | s = origargv[0]; | |
| 1047 | s += strlen(s); | |
| 1048 | /* See if all the arguments are contiguous in memory */ | |
| 1049 | for (i = 1; i < origargc; i++) { | |
| 1050 | if (origargv[i] == s + 1) | |
| 1051 | s += strlen(++s); /* this one is ok too */ | |
| 1052 | } | |
| 1053 | if (origenviron[0] == s + 1) { /* can grab env area too? */ | |
| 1054 | my_setenv("NoNeSuCh", Nullch); | |
| 1055 | /* force copy of environment */ | |
| 1056 | for (i = 0; origenviron[i]; i++) | |
| 1057 | if (origenviron[i] == s + 1) | |
| 1058 | s += strlen(++s); | |
| 1059 | } | |
| 1060 | origalen = s - origargv[0]; | |
| 1061 | } | |
| 463ee0b2 | 1062 | s = SvPVX(sv); |
| 79072805 LW |
1063 | i = SvCUR(sv); |
| 1064 | if (i >= origalen) { | |
| 1065 | i = origalen; | |
| 1066 | SvCUR_set(sv, i); | |
| 1067 | *SvEND(sv) = '\0'; | |
| 1068 | Copy(s, origargv[0], i, char); | |
| 1069 | } | |
| 1070 | else { | |
| 1071 | Copy(s, origargv[0], i, char); | |
| 1072 | s = origargv[0]+i; | |
| 1073 | *s++ = '\0'; | |
| 1074 | while (++i < origalen) | |
| ed6116ce LW |
1075 | *s++ = '\0'; |
| 1076 | for (i = 1; i < origargc; i++) | |
| 1077 | origargv[i] = NULL; | |
| 79072805 LW |
1078 | } |
| 1079 | break; | |
| 1080 | } | |
| 1081 | return 0; | |
| 1082 | } | |
| 1083 | ||
| 1084 | I32 | |
| 1085 | whichsig(sig) | |
| 1086 | char *sig; | |
| 1087 | { | |
| 1088 | register char **sigv; | |
| 1089 | ||
| 1090 | for (sigv = sig_name+1; *sigv; sigv++) | |
| 1091 | if (strEQ(sig,*sigv)) | |
| 1092 | return sigv - sig_name; | |
| 1093 | #ifdef SIGCLD | |
| 1094 | if (strEQ(sig,"CHLD")) | |
| 1095 | return SIGCLD; | |
| 1096 | #endif | |
| 1097 | #ifdef SIGCHLD | |
| 1098 | if (strEQ(sig,"CLD")) | |
| 1099 | return SIGCHLD; | |
| 1100 | #endif | |
| 1101 | return 0; | |
| 1102 | } | |
| 1103 | ||
| 1104 | static handlertype | |
| 1105 | sighandler(sig) | |
| 1106 | I32 sig; | |
| 1107 | { | |
| 1108 | dSP; | |
| 1109 | GV *gv; | |
| 1110 | SV *sv; | |
| 1111 | CV *cv; | |
| 1112 | CONTEXT *cx; | |
| 1113 | AV *oldstack; | |
| 1114 | I32 hasargs = 1; | |
| 1115 | I32 items = 1; | |
| 1116 | I32 gimme = G_SCALAR; | |
| 1117 | ||
| 1118 | #ifdef OS2 /* or anybody else who requires SIG_ACK */ | |
| 1119 | signal(sig, SIG_ACK); | |
| 1120 | #endif | |
| 1121 | ||
| 1122 | gv = gv_fetchpv( | |
| 463ee0b2 LW |
1123 | SvPVx(*hv_fetch(GvHVn(siggv),sig_name[sig],strlen(sig_name[sig]), |
| 1124 | TRUE), na), TRUE); | |
| 79072805 LW |
1125 | cv = GvCV(gv); |
| 1126 | if (!cv && *sig_name[sig] == 'C' && instr(sig_name[sig],"LD")) { | |
| 1127 | if (sig_name[sig][1] == 'H') | |
| 463ee0b2 | 1128 | gv = gv_fetchpv(SvPVx(*hv_fetch(GvHVn(siggv),"CLD",3,TRUE), na), |
| 79072805 LW |
1129 | TRUE); |
| 1130 | else | |
| 463ee0b2 | 1131 | gv = gv_fetchpv(SvPVx(*hv_fetch(GvHVn(siggv),"CHLD",4,TRUE), na), |
| 79072805 LW |
1132 | TRUE); |
| 1133 | cv = GvCV(gv); /* gag */ | |
| 1134 | } | |
| 1135 | if (!cv) { | |
| 1136 | if (dowarn) | |
| 1137 | warn("SIG%s handler \"%s\" not defined.\n", | |
| 1138 | sig_name[sig], GvENAME(gv) ); | |
| 1139 | return; | |
| 1140 | } | |
| 1141 | ||
| 1142 | oldstack = stack; | |
| 1143 | SWITCHSTACK(stack, signalstack); | |
| 1144 | ||
| 1145 | sv = sv_mortalcopy(&sv_undef); | |
| 1146 | sv_setpv(sv,sig_name[sig]); | |
| 1147 | PUSHs(sv); | |
| 1148 | ||
| 1149 | ENTER; | |
| 1150 | SAVETMPS; | |
| 1151 | ||
| 1152 | push_return(op); | |
| 1153 | push_return(0); | |
| 1154 | PUSHBLOCK(cx, CXt_SUB, sp); | |
| 1155 | PUSHSUB(cx); | |
| 1156 | cx->blk_sub.savearray = GvAV(defgv); | |
| 1157 | cx->blk_sub.argarray = av_fake(items, sp); | |
| 1158 | GvAV(defgv) = cx->blk_sub.argarray; | |
| 1159 | CvDEPTH(cv)++; | |
| 1160 | if (CvDEPTH(cv) >= 2) { | |
| 1161 | if (CvDEPTH(cv) == 100 && dowarn) | |
| 1162 | warn("Deep recursion on subroutine \"%s\"",GvENAME(gv)); | |
| 1163 | } | |
| 1164 | op = CvSTART(cv); | |
| 1165 | PUTBACK; | |
| 1166 | run(); /* Does the LEAVE for us. */ | |
| 1167 | ||
| 1168 | SWITCHSTACK(signalstack, oldstack); | |
| 1169 | op = pop_return(); | |
| 1170 | ||
| 1171 | return; | |
| 1172 | } |