| Commit | Line | Data |
|---|
| bf38876a |
1 | /* $Header: eval.c,v 3.0.1.1 89/11/11 04:31:51 lwall Locked $ |
| a687059c |
2 | * |
| 3 | * Copyright (c) 1989, Larry Wall |
| 4 | * |
| 5 | * You may distribute under the terms of the GNU General Public License |
| 6 | * as specified in the README file that comes with the perl 3.0 kit. |
| 378cc40b |
7 | * |
| 8 | * $Log: eval.c,v $ |
| bf38876a |
9 | * Revision 3.0.1.1 89/11/11 04:31:51 lwall |
| 10 | * patch2: mkdir and rmdir needed to quote argument when passed to shell |
| 11 | * patch2: mkdir and rmdir now return better error codes |
| 12 | * patch2: fileno, seekdir, rewinddir and closedir now disallow defaults |
| 13 | * |
| a687059c |
14 | * Revision 3.0 89/10/18 15:17:04 lwall |
| 15 | * 3.0 baseline |
| 378cc40b |
16 | * |
| 17 | */ |
| 18 | |
| 19 | #include "EXTERN.h" |
| 20 | #include "perl.h" |
| 21 | |
| 22 | #include <signal.h> |
| 23 | #include <errno.h> |
| 24 | |
| a687059c |
25 | #ifdef I_VFORK |
| 26 | # include <vfork.h> |
| 27 | #endif |
| 28 | |
| 378cc40b |
29 | extern int errno; |
| 30 | |
| 31 | #ifdef VOIDSIG |
| 32 | static void (*ihand)(); |
| 33 | static void (*qhand)(); |
| 34 | #else |
| 35 | static int (*ihand)(); |
| 36 | static int (*qhand)(); |
| 37 | #endif |
| 38 | |
| 39 | ARG *debarg; |
| 40 | STR str_args; |
| a687059c |
41 | static STAB *stab2; |
| 42 | static STIO *stio; |
| 43 | static struct lstring *lstr; |
| 44 | static char old_record_separator; |
| 378cc40b |
45 | |
| a687059c |
46 | double sin(), cos(), atan2(), pow(); |
| 47 | |
| 48 | char *getlogin(); |
| 49 | |
| 50 | extern int sys_nerr; |
| 51 | extern char *sys_errlist[]; |
| 52 | |
| 53 | int |
| 54 | eval(arg,gimme,sp) |
| 378cc40b |
55 | register ARG *arg; |
| a687059c |
56 | int gimme; |
| 57 | register int sp; |
| 378cc40b |
58 | { |
| 59 | register STR *str; |
| 60 | register int anum; |
| 61 | register int optype; |
| a687059c |
62 | register STR **st; |
| 378cc40b |
63 | int maxarg; |
| 378cc40b |
64 | double value; |
| 378cc40b |
65 | register char *tmps; |
| 66 | char *tmps2; |
| 67 | int argflags; |
| 68 | int argtype; |
| 69 | union argptr argptr; |
| a687059c |
70 | int arglast[8]; /* highest sp for arg--valid only for non-O_LIST args */ |
| 378cc40b |
71 | unsigned long tmplong; |
| 72 | long when; |
| 73 | FILE *fp; |
| 74 | STR *tmpstr; |
| 75 | FCMD *form; |
| 76 | STAB *stab; |
| 77 | ARRAY *ary; |
| 78 | bool assigning = FALSE; |
| 79 | double exp(), log(), sqrt(), modf(); |
| 80 | char *crypt(), *getenv(); |
| a687059c |
81 | extern void grow_dlevel(); |
| 378cc40b |
82 | |
| 83 | if (!arg) |
| a687059c |
84 | goto say_undef; |
| 378cc40b |
85 | optype = arg->arg_type; |
| a687059c |
86 | maxarg = arg->arg_len; |
| 87 | arglast[0] = sp; |
| 88 | str = arg->arg_ptr.arg_str; |
| 89 | if (sp + maxarg > stack->ary_max) |
| 90 | astore(stack, sp + maxarg, Nullstr); |
| 91 | st = stack->ary_array; |
| 92 | |
| 378cc40b |
93 | #ifdef DEBUGGING |
| 94 | if (debug) { |
| 95 | if (debug & 8) { |
| 96 | deb("%s (%lx) %d args:\n",opname[optype],arg,maxarg); |
| 97 | } |
| 98 | debname[dlevel] = opname[optype][0]; |
| a687059c |
99 | debdelim[dlevel] = ':'; |
| 100 | if (++dlevel >= dlmax) |
| 101 | grow_dlevel(); |
| 378cc40b |
102 | } |
| 103 | #endif |
| 378cc40b |
104 | |
| a687059c |
105 | #include "evalargs.xc" |
| 106 | |
| 107 | st += arglast[0]; |
| 378cc40b |
108 | switch (optype) { |
| a687059c |
109 | case O_RCAT: |
| 110 | STABSET(str); |
| 111 | break; |
| 378cc40b |
112 | case O_ITEM: |
| a687059c |
113 | if (gimme == G_ARRAY) |
| 378cc40b |
114 | goto array_return; |
| a687059c |
115 | STR_SSET(str,st[1]); |
| 378cc40b |
116 | STABSET(str); |
| 117 | break; |
| 118 | case O_ITEM2: |
| a687059c |
119 | if (gimme == G_ARRAY) |
| 120 | goto array_return; |
| 121 | --anum; |
| 122 | STR_SSET(str,st[arglast[anum]-arglast[0]]); |
| 378cc40b |
123 | STABSET(str); |
| 124 | break; |
| 125 | case O_ITEM3: |
| a687059c |
126 | if (gimme == G_ARRAY) |
| 127 | goto array_return; |
| 128 | --anum; |
| 129 | STR_SSET(str,st[arglast[anum]-arglast[0]]); |
| 378cc40b |
130 | STABSET(str); |
| 131 | break; |
| 132 | case O_CONCAT: |
| a687059c |
133 | STR_SSET(str,st[1]); |
| 134 | str_scat(str,st[2]); |
| 378cc40b |
135 | STABSET(str); |
| 136 | break; |
| 137 | case O_REPEAT: |
| a687059c |
138 | STR_SSET(str,st[1]); |
| 139 | anum = (int)str_gnum(st[2]); |
| 378cc40b |
140 | if (anum >= 1) { |
| a687059c |
141 | tmpstr = Str_new(50,0); |
| 378cc40b |
142 | str_sset(tmpstr,str); |
| 143 | while (--anum > 0) |
| 144 | str_scat(str,tmpstr); |
| 145 | } |
| 146 | else |
| 147 | str_sset(str,&str_no); |
| 148 | STABSET(str); |
| 149 | break; |
| 150 | case O_MATCH: |
| a687059c |
151 | sp = do_match(str,arg, |
| 152 | gimme,arglast); |
| 153 | if (gimme == G_ARRAY) |
| 378cc40b |
154 | goto array_return; |
| 378cc40b |
155 | STABSET(str); |
| 156 | break; |
| 157 | case O_NMATCH: |
| a687059c |
158 | sp = do_match(str,arg, |
| 159 | gimme,arglast); |
| 160 | if (gimme == G_ARRAY) |
| 161 | goto array_return; |
| 162 | str_sset(str, str_true(str) ? &str_no : &str_yes); |
| 378cc40b |
163 | STABSET(str); |
| 164 | break; |
| 165 | case O_SUBST: |
| a687059c |
166 | sp = do_subst(str,arg,arglast[0]); |
| 167 | goto array_return; |
| 378cc40b |
168 | case O_NSUBST: |
| a687059c |
169 | sp = do_subst(str,arg,arglast[0]); |
| 378cc40b |
170 | str = arg->arg_ptr.arg_str; |
| a687059c |
171 | str_set(str, str_true(str) ? No : Yes); |
| 172 | goto array_return; |
| 378cc40b |
173 | case O_ASSIGN: |
| a687059c |
174 | if (arg[1].arg_flags & AF_ARYOK) { |
| 175 | if (arg->arg_len == 1) { |
| 176 | arg->arg_type = O_LOCAL; |
| a687059c |
177 | goto local; |
| 178 | } |
| 179 | else { |
| 180 | arg->arg_type = O_AASSIGN; |
| 181 | goto aassign; |
| 182 | } |
| 183 | } |
| 378cc40b |
184 | else { |
| a687059c |
185 | arg->arg_type = O_SASSIGN; |
| 186 | goto sassign; |
| 378cc40b |
187 | } |
| a687059c |
188 | case O_LOCAL: |
| 189 | local: |
| 190 | arglast[2] = arglast[1]; /* push a null array */ |
| 191 | /* FALL THROUGH */ |
| 192 | case O_AASSIGN: |
| 193 | aassign: |
| 194 | sp = do_assign(arg, |
| 195 | gimme,arglast); |
| 196 | goto array_return; |
| 197 | case O_SASSIGN: |
| 198 | sassign: |
| 199 | STR_SSET(str, st[2]); |
| 200 | STABSET(str); |
| 378cc40b |
201 | break; |
| 202 | case O_CHOP: |
| a687059c |
203 | st -= arglast[0]; |
| 378cc40b |
204 | str = arg->arg_ptr.arg_str; |
| a687059c |
205 | for (sp = arglast[0] + 1; sp <= arglast[1]; sp++) |
| 206 | do_chop(str,st[sp]); |
| 207 | st += arglast[0]; |
| 378cc40b |
208 | break; |
| a687059c |
209 | case O_DEFINED: |
| 210 | if (arg[1].arg_type & A_DONT) { |
| 211 | sp = do_defined(str,arg, |
| 212 | gimme,arglast); |
| 213 | goto array_return; |
| 214 | } |
| 215 | else if (str->str_pok || str->str_nok) |
| 216 | goto say_yes; |
| 217 | goto say_no; |
| 218 | case O_UNDEF: |
| 219 | if (arg[1].arg_type & A_DONT) { |
| 220 | sp = do_undef(str,arg, |
| 221 | gimme,arglast); |
| 222 | goto array_return; |
| 223 | } |
| 224 | else if (str != stab_val(defstab)) { |
| 225 | str->str_pok = str->str_nok = 0; |
| 226 | STABSET(str); |
| 227 | } |
| 228 | goto say_undef; |
| 378cc40b |
229 | case O_STUDY: |
| a687059c |
230 | sp = do_study(str,arg, |
| 231 | gimme,arglast); |
| 232 | goto array_return; |
| 233 | case O_POW: |
| 234 | value = str_gnum(st[1]); |
| 235 | value = pow(value,str_gnum(st[2])); |
| 378cc40b |
236 | goto donumset; |
| 237 | case O_MULTIPLY: |
| a687059c |
238 | value = str_gnum(st[1]); |
| 239 | value *= str_gnum(st[2]); |
| 378cc40b |
240 | goto donumset; |
| 241 | case O_DIVIDE: |
| a687059c |
242 | if ((value = str_gnum(st[2])) == 0.0) |
| 378cc40b |
243 | fatal("Illegal division by zero"); |
| a687059c |
244 | value = str_gnum(st[1]) / value; |
| 378cc40b |
245 | goto donumset; |
| 246 | case O_MODULO: |
| a687059c |
247 | tmplong = (long) str_gnum(st[2]); |
| 248 | if (tmplong == 0L) |
| 378cc40b |
249 | fatal("Illegal modulus zero"); |
| a687059c |
250 | when = (long)str_gnum(st[1]); |
| 251 | #ifndef lint |
| 252 | if (when >= 0) |
| 253 | value = (double)(when % tmplong); |
| 254 | else |
| 255 | value = (double)(tmplong - (-when % tmplong)); |
| 256 | #endif |
| 378cc40b |
257 | goto donumset; |
| 258 | case O_ADD: |
| a687059c |
259 | value = str_gnum(st[1]); |
| 260 | value += str_gnum(st[2]); |
| 378cc40b |
261 | goto donumset; |
| 262 | case O_SUBTRACT: |
| a687059c |
263 | value = str_gnum(st[1]); |
| 264 | value -= str_gnum(st[2]); |
| 378cc40b |
265 | goto donumset; |
| 266 | case O_LEFT_SHIFT: |
| a687059c |
267 | value = str_gnum(st[1]); |
| 268 | anum = (int)str_gnum(st[2]); |
| 269 | #ifndef lint |
| 270 | value = (double)(((long)value) << anum); |
| 271 | #endif |
| 378cc40b |
272 | goto donumset; |
| 273 | case O_RIGHT_SHIFT: |
| a687059c |
274 | value = str_gnum(st[1]); |
| 275 | anum = (int)str_gnum(st[2]); |
| 276 | #ifndef lint |
| 277 | value = (double)(((long)value) >> anum); |
| 278 | #endif |
| 378cc40b |
279 | goto donumset; |
| 280 | case O_LT: |
| a687059c |
281 | value = str_gnum(st[1]); |
| 282 | value = (value < str_gnum(st[2])) ? 1.0 : 0.0; |
| 378cc40b |
283 | goto donumset; |
| 284 | case O_GT: |
| a687059c |
285 | value = str_gnum(st[1]); |
| 286 | value = (value > str_gnum(st[2])) ? 1.0 : 0.0; |
| 378cc40b |
287 | goto donumset; |
| 288 | case O_LE: |
| a687059c |
289 | value = str_gnum(st[1]); |
| 290 | value = (value <= str_gnum(st[2])) ? 1.0 : 0.0; |
| 378cc40b |
291 | goto donumset; |
| 292 | case O_GE: |
| a687059c |
293 | value = str_gnum(st[1]); |
| 294 | value = (value >= str_gnum(st[2])) ? 1.0 : 0.0; |
| 378cc40b |
295 | goto donumset; |
| 296 | case O_EQ: |
| a687059c |
297 | if (dowarn) { |
| 298 | if ((!st[1]->str_nok && !looks_like_number(st[1])) || |
| 299 | (!st[2]->str_nok && !looks_like_number(st[2])) ) |
| 300 | warn("Possible use of == on string value"); |
| 301 | } |
| 302 | value = str_gnum(st[1]); |
| 303 | value = (value == str_gnum(st[2])) ? 1.0 : 0.0; |
| 378cc40b |
304 | goto donumset; |
| 305 | case O_NE: |
| a687059c |
306 | value = str_gnum(st[1]); |
| 307 | value = (value != str_gnum(st[2])) ? 1.0 : 0.0; |
| 378cc40b |
308 | goto donumset; |
| 309 | case O_BIT_AND: |
| a687059c |
310 | if (!sawvec || st[1]->str_nok || st[2]->str_nok) { |
| 311 | value = str_gnum(st[1]); |
| 312 | #ifndef lint |
| 313 | value = (double)(((long)value) & (long)str_gnum(st[2])); |
| 314 | #endif |
| 315 | goto donumset; |
| 316 | } |
| 317 | else |
| 318 | do_vop(optype,str,st[1],st[2]); |
| 319 | break; |
| 378cc40b |
320 | case O_XOR: |
| a687059c |
321 | if (!sawvec || st[1]->str_nok || st[2]->str_nok) { |
| 322 | value = str_gnum(st[1]); |
| 323 | #ifndef lint |
| 324 | value = (double)(((long)value) ^ (long)str_gnum(st[2])); |
| 325 | #endif |
| 326 | goto donumset; |
| 327 | } |
| 328 | else |
| 329 | do_vop(optype,str,st[1],st[2]); |
| 330 | break; |
| 378cc40b |
331 | case O_BIT_OR: |
| a687059c |
332 | if (!sawvec || st[1]->str_nok || st[2]->str_nok) { |
| 333 | value = str_gnum(st[1]); |
| 334 | #ifndef lint |
| 335 | value = (double)(((long)value) | (long)str_gnum(st[2])); |
| 336 | #endif |
| 337 | goto donumset; |
| 338 | } |
| 339 | else |
| 340 | do_vop(optype,str,st[1],st[2]); |
| 341 | break; |
| 342 | /* use register in evaluating str_true() */ |
| 378cc40b |
343 | case O_AND: |
| a687059c |
344 | if (str_true(st[1])) { |
| 378cc40b |
345 | anum = 2; |
| 346 | optype = O_ITEM2; |
| 347 | argflags = arg[anum].arg_flags; |
| a687059c |
348 | if (gimme == G_ARRAY) |
| 349 | argflags |= AF_ARYOK; |
| 350 | argtype = arg[anum].arg_type & A_MASK; |
| 378cc40b |
351 | argptr = arg[anum].arg_ptr; |
| 352 | maxarg = anum = 1; |
| a687059c |
353 | sp = arglast[0]; |
| 354 | st -= sp; |
| 378cc40b |
355 | goto re_eval; |
| 356 | } |
| 357 | else { |
| 358 | if (assigning) { |
| a687059c |
359 | str_sset(str, st[1]); |
| 378cc40b |
360 | STABSET(str); |
| 361 | } |
| 362 | else |
| a687059c |
363 | str = st[1]; |
| 378cc40b |
364 | break; |
| 365 | } |
| 366 | case O_OR: |
| a687059c |
367 | if (str_true(st[1])) { |
| 378cc40b |
368 | if (assigning) { |
| a687059c |
369 | str_sset(str, st[1]); |
| 378cc40b |
370 | STABSET(str); |
| 371 | } |
| 372 | else |
| a687059c |
373 | str = st[1]; |
| 378cc40b |
374 | break; |
| 375 | } |
| 376 | else { |
| 377 | anum = 2; |
| 378 | optype = O_ITEM2; |
| 379 | argflags = arg[anum].arg_flags; |
| a687059c |
380 | if (gimme == G_ARRAY) |
| 381 | argflags |= AF_ARYOK; |
| 382 | argtype = arg[anum].arg_type & A_MASK; |
| 378cc40b |
383 | argptr = arg[anum].arg_ptr; |
| 384 | maxarg = anum = 1; |
| a687059c |
385 | sp = arglast[0]; |
| 386 | st -= sp; |
| 378cc40b |
387 | goto re_eval; |
| 388 | } |
| 389 | case O_COND_EXPR: |
| a687059c |
390 | anum = (str_true(st[1]) ? 2 : 3); |
| 378cc40b |
391 | optype = (anum == 2 ? O_ITEM2 : O_ITEM3); |
| 392 | argflags = arg[anum].arg_flags; |
| a687059c |
393 | if (gimme == G_ARRAY) |
| 394 | argflags |= AF_ARYOK; |
| 395 | argtype = arg[anum].arg_type & A_MASK; |
| 378cc40b |
396 | argptr = arg[anum].arg_ptr; |
| 397 | maxarg = anum = 1; |
| a687059c |
398 | sp = arglast[0]; |
| 399 | st -= sp; |
| 378cc40b |
400 | goto re_eval; |
| 401 | case O_COMMA: |
| a687059c |
402 | if (gimme == G_ARRAY) |
| 403 | goto array_return; |
| 404 | str = st[2]; |
| 378cc40b |
405 | break; |
| 406 | case O_NEGATE: |
| a687059c |
407 | value = -str_gnum(st[1]); |
| 378cc40b |
408 | goto donumset; |
| 409 | case O_NOT: |
| a687059c |
410 | value = (double) !str_true(st[1]); |
| 378cc40b |
411 | goto donumset; |
| 412 | case O_COMPLEMENT: |
| a687059c |
413 | #ifndef lint |
| 414 | value = (double) ~(long)str_gnum(st[1]); |
| 415 | #endif |
| 378cc40b |
416 | goto donumset; |
| 417 | case O_SELECT: |
| a687059c |
418 | tmps = stab_name(defoutstab); |
| 419 | if (maxarg > 0) { |
| 420 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 421 | defoutstab = arg[1].arg_ptr.arg_stab; |
| 422 | else |
| 423 | defoutstab = stabent(str_get(st[1]),TRUE); |
| 424 | if (!stab_io(defoutstab)) |
| 425 | stab_io(defoutstab) = stio_new(); |
| 426 | curoutstab = defoutstab; |
| 427 | } |
| 428 | str_set(str, tmps); |
| 378cc40b |
429 | STABSET(str); |
| 430 | break; |
| 431 | case O_WRITE: |
| 432 | if (maxarg == 0) |
| 433 | stab = defoutstab; |
| a687059c |
434 | else if ((arg[1].arg_type & A_MASK) == A_WORD) { |
| 435 | if (!(stab = arg[1].arg_ptr.arg_stab)) |
| 436 | stab = defoutstab; |
| 437 | } |
| 378cc40b |
438 | else |
| a687059c |
439 | stab = stabent(str_get(st[1]),TRUE); |
| 440 | if (!stab_io(stab)) { |
| 378cc40b |
441 | str_set(str, No); |
| 442 | STABSET(str); |
| 443 | break; |
| 444 | } |
| 445 | curoutstab = stab; |
| a687059c |
446 | fp = stab_io(stab)->ofp; |
| 378cc40b |
447 | debarg = arg; |
| a687059c |
448 | if (stab_io(stab)->fmt_stab) |
| 449 | form = stab_form(stab_io(stab)->fmt_stab); |
| 378cc40b |
450 | else |
| a687059c |
451 | form = stab_form(stab); |
| 378cc40b |
452 | if (!form || !fp) { |
| a687059c |
453 | if (dowarn) { |
| 454 | if (form) |
| 455 | warn("No format for filehandle"); |
| 456 | else { |
| 457 | if (stab_io(stab)->ifp) |
| 458 | warn("Filehandle only opened for input"); |
| 459 | else |
| 460 | warn("Write on closed filehandle"); |
| 461 | } |
| 462 | } |
| 378cc40b |
463 | str_set(str, No); |
| 464 | STABSET(str); |
| 465 | break; |
| 466 | } |
| a687059c |
467 | format(&outrec,form,sp); |
| 468 | do_write(&outrec,stab_io(stab),sp); |
| 469 | if (stab_io(stab)->flags & IOF_FLUSH) |
| 470 | (void)fflush(fp); |
| 378cc40b |
471 | str_set(str, Yes); |
| 472 | STABSET(str); |
| 473 | break; |
| a687059c |
474 | case O_DBMOPEN: |
| 475 | #ifdef SOME_DBM |
| 476 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 477 | stab = arg[1].arg_ptr.arg_stab; |
| 478 | else |
| 479 | stab = stabent(str_get(st[1]),TRUE); |
| 480 | anum = (int)str_gnum(st[3]); |
| 481 | value = (double)hdbmopen(stab_hash(stab),str_get(st[2]),anum); |
| 482 | goto donumset; |
| 483 | #else |
| 484 | fatal("No dbm or ndbm on this machine"); |
| 485 | #endif |
| 486 | case O_DBMCLOSE: |
| 487 | #ifdef SOME_DBM |
| 488 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 489 | stab = arg[1].arg_ptr.arg_stab; |
| 490 | else |
| 491 | stab = stabent(str_get(st[1]),TRUE); |
| 492 | hdbmclose(stab_hash(stab)); |
| 493 | goto say_yes; |
| 494 | #else |
| 495 | fatal("No dbm or ndbm on this machine"); |
| 496 | #endif |
| 378cc40b |
497 | case O_OPEN: |
| a687059c |
498 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 378cc40b |
499 | stab = arg[1].arg_ptr.arg_stab; |
| 500 | else |
| a687059c |
501 | stab = stabent(str_get(st[1]),TRUE); |
| 502 | if (do_open(stab,str_get(st[2]))) { |
| 378cc40b |
503 | value = (double)forkprocess; |
| a687059c |
504 | stab_io(stab)->lines = 0; |
| 378cc40b |
505 | goto donumset; |
| 506 | } |
| 507 | else |
| a687059c |
508 | goto say_undef; |
| 378cc40b |
509 | break; |
| 510 | case O_TRANS: |
| 511 | value = (double) do_trans(str,arg); |
| 512 | str = arg->arg_ptr.arg_str; |
| 513 | goto donumset; |
| 514 | case O_NTRANS: |
| 515 | str_set(arg->arg_ptr.arg_str, do_trans(str,arg) == 0 ? Yes : No); |
| 516 | str = arg->arg_ptr.arg_str; |
| 517 | break; |
| 518 | case O_CLOSE: |
| a687059c |
519 | if (maxarg == 0) |
| 520 | stab = defoutstab; |
| 521 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 378cc40b |
522 | stab = arg[1].arg_ptr.arg_stab; |
| 523 | else |
| a687059c |
524 | stab = stabent(str_get(st[1]),TRUE); |
| 378cc40b |
525 | str_set(str, do_close(stab,TRUE) ? Yes : No ); |
| 526 | STABSET(str); |
| 527 | break; |
| 528 | case O_EACH: |
| a687059c |
529 | sp = do_each(str,stab_hash(arg[1].arg_ptr.arg_stab), |
| 530 | gimme,arglast); |
| 531 | goto array_return; |
| 378cc40b |
532 | case O_VALUES: |
| 533 | case O_KEYS: |
| a687059c |
534 | sp = do_kv(str,stab_hash(arg[1].arg_ptr.arg_stab), optype, |
| 535 | gimme,arglast); |
| 536 | goto array_return; |
| 537 | case O_LARRAY: |
| 538 | str->str_nok = str->str_pok = 0; |
| 539 | str->str_u.str_stab = arg[1].arg_ptr.arg_stab; |
| 540 | str->str_state = SS_ARY; |
| 541 | break; |
| 378cc40b |
542 | case O_ARRAY: |
| a687059c |
543 | ary = stab_array(arg[1].arg_ptr.arg_stab); |
| 544 | maxarg = ary->ary_fill + 1; |
| 545 | if (gimme == G_ARRAY) { /* array wanted */ |
| 546 | sp = arglast[0]; |
| 547 | st -= sp; |
| 548 | if (maxarg > 0 && sp + maxarg > stack->ary_max) { |
| 549 | astore(stack,sp + maxarg, Nullstr); |
| 550 | st = stack->ary_array; |
| 378cc40b |
551 | } |
| a687059c |
552 | Copy(ary->ary_array, &st[sp+1], maxarg, STR*); |
| 553 | sp += maxarg; |
| 554 | goto array_return; |
| 378cc40b |
555 | } |
| 556 | else |
| a687059c |
557 | str = afetch(ary,maxarg - 1,FALSE); |
| 558 | break; |
| 559 | case O_AELEM: |
| 560 | str = afetch(stab_array(arg[1].arg_ptr.arg_stab), |
| 561 | ((int)str_gnum(st[2])) - arybase,FALSE); |
| 378cc40b |
562 | if (!str) |
| a687059c |
563 | goto say_undef; |
| 378cc40b |
564 | break; |
| 565 | case O_DELETE: |
| a687059c |
566 | tmpstab = arg[1].arg_ptr.arg_stab; |
| 567 | tmps = str_get(st[2]); |
| 568 | str = hdelete(stab_hash(tmpstab),tmps,st[2]->str_cur); |
| 569 | if (tmpstab == envstab) |
| 570 | setenv(tmps,Nullch); |
| 378cc40b |
571 | if (!str) |
| a687059c |
572 | goto say_undef; |
| 573 | break; |
| 574 | case O_LHASH: |
| 575 | str->str_nok = str->str_pok = 0; |
| 576 | str->str_u.str_stab = arg[1].arg_ptr.arg_stab; |
| 577 | str->str_state = SS_HASH; |
| 378cc40b |
578 | break; |
| 579 | case O_HASH: |
| a687059c |
580 | if (gimme == G_ARRAY) { /* array wanted */ |
| 581 | sp = do_kv(str,stab_hash(arg[1].arg_ptr.arg_stab), optype, |
| 582 | gimme,arglast); |
| 583 | goto array_return; |
| 584 | } |
| 585 | else { |
| 586 | tmpstab = arg[1].arg_ptr.arg_stab; |
| 587 | sprintf(buf,"%d/%d",stab_hash(tmpstab)->tbl_fill, |
| 588 | stab_hash(tmpstab)->tbl_max+1); |
| 589 | str_set(str,buf); |
| 590 | } |
| 591 | break; |
| 592 | case O_HELEM: |
| 593 | tmpstab = arg[1].arg_ptr.arg_stab; |
| 594 | tmps = str_get(st[2]); |
| 595 | str = hfetch(stab_hash(tmpstab),tmps,st[2]->str_cur,FALSE); |
| 378cc40b |
596 | if (!str) |
| a687059c |
597 | goto say_undef; |
| 378cc40b |
598 | break; |
| a687059c |
599 | case O_LAELEM: |
| 600 | anum = ((int)str_gnum(st[2])) - arybase; |
| 601 | str = afetch(stab_array(arg[1].arg_ptr.arg_stab),anum,TRUE); |
| 602 | if (!str) |
| 603 | fatal("Assignment to non-creatable value, subscript %d",anum); |
| 378cc40b |
604 | break; |
| a687059c |
605 | case O_LHELEM: |
| 606 | tmpstab = arg[1].arg_ptr.arg_stab; |
| 607 | tmps = str_get(st[2]); |
| 608 | anum = st[2]->str_cur; |
| 609 | str = hfetch(stab_hash(tmpstab),tmps,anum,TRUE); |
| 610 | if (!str) |
| 611 | fatal("Assignment to non-creatable value, subscript \"%s\"",tmps); |
| 612 | if (tmpstab == envstab) /* heavy wizardry going on here */ |
| 613 | str_magic(str, tmpstab, 'E', tmps, anum); /* str is now magic */ |
| 378cc40b |
614 | /* he threw the brick up into the air */ |
| a687059c |
615 | else if (tmpstab == sigstab) |
| 616 | str_magic(str, tmpstab, 'S', tmps, anum); |
| 617 | #ifdef SOME_DBM |
| 618 | else if (stab_hash(tmpstab)->tbl_dbm) |
| 619 | str_magic(str, tmpstab, 'D', tmps, anum); |
| 620 | #endif |
| 378cc40b |
621 | break; |
| a687059c |
622 | case O_ASLICE: |
| 623 | anum = TRUE; |
| 624 | argtype = FALSE; |
| 625 | goto do_slice_already; |
| 626 | case O_HSLICE: |
| 627 | anum = FALSE; |
| 628 | argtype = FALSE; |
| 629 | goto do_slice_already; |
| 630 | case O_LASLICE: |
| 631 | anum = TRUE; |
| 632 | argtype = TRUE; |
| 633 | goto do_slice_already; |
| 634 | case O_LHSLICE: |
| 635 | anum = FALSE; |
| 636 | argtype = TRUE; |
| 637 | do_slice_already: |
| 638 | sp = do_slice(arg[1].arg_ptr.arg_stab,anum,argtype, |
| 639 | gimme,arglast); |
| 640 | goto array_return; |
| 378cc40b |
641 | case O_PUSH: |
| a687059c |
642 | if (arglast[2] - arglast[1] != 1) |
| 643 | str = do_push(stab_array(arg[1].arg_ptr.arg_stab),arglast); |
| 378cc40b |
644 | else { |
| a687059c |
645 | str = Str_new(51,0); /* must copy the STR */ |
| 646 | str_sset(str,st[2]); |
| 647 | (void)apush(stab_array(arg[1].arg_ptr.arg_stab),str); |
| 378cc40b |
648 | } |
| 649 | break; |
| 650 | case O_POP: |
| a687059c |
651 | str = apop(ary = stab_array(arg[1].arg_ptr.arg_stab)); |
| 652 | goto staticalization; |
| 378cc40b |
653 | case O_SHIFT: |
| a687059c |
654 | str = ashift(ary = stab_array(arg[1].arg_ptr.arg_stab)); |
| 655 | staticalization: |
| 656 | if (!str) |
| 657 | goto say_undef; |
| 658 | if (ary->ary_flags & ARF_REAL) |
| 659 | (void)str_2static(str); |
| 378cc40b |
660 | break; |
| a687059c |
661 | case O_UNPACK: |
| 662 | sp = do_unpack(str,gimme,arglast); |
| 663 | goto array_return; |
| 378cc40b |
664 | case O_SPLIT: |
| a687059c |
665 | value = str_gnum(st[3]); |
| 666 | sp = do_split(str, arg[2].arg_ptr.arg_spat, (int)value, |
| 667 | gimme,arglast); |
| 668 | goto array_return; |
| 378cc40b |
669 | case O_LENGTH: |
| a687059c |
670 | if (maxarg < 1) |
| 671 | value = (double)str_len(stab_val(defstab)); |
| 672 | else |
| 673 | value = (double)str_len(st[1]); |
| 378cc40b |
674 | goto donumset; |
| 675 | case O_SPRINTF: |
| a687059c |
676 | do_sprintf(str, sp-arglast[0], st+1); |
| 378cc40b |
677 | break; |
| 678 | case O_SUBSTR: |
| a687059c |
679 | anum = ((int)str_gnum(st[2])) - arybase; /* anum=where to start*/ |
| 680 | tmps = str_get(st[1]); /* force conversion to string */ |
| 681 | if (argtype = (str == st[1])) |
| 682 | str = arg->arg_ptr.arg_str; |
| 683 | if (anum < 0) |
| 684 | anum += st[1]->str_cur + arybase; |
| 685 | if (anum < 0 || anum > st[1]->str_cur) |
| 686 | str_nset(str,"",0); |
| 687 | else { |
| 688 | optype = (int)str_gnum(st[3]); |
| 689 | if (optype < 0) |
| 690 | optype = 0; |
| 691 | tmps += anum; |
| 692 | anum = st[1]->str_cur - anum; /* anum=how many bytes left*/ |
| 693 | if (anum > optype) |
| 694 | anum = optype; |
| 378cc40b |
695 | str_nset(str, tmps, anum); |
| a687059c |
696 | if (argtype) { /* it's an lvalue! */ |
| 697 | lstr = (struct lstring*)str; |
| 698 | str->str_magic = st[1]; |
| 699 | st[1]->str_rare = 's'; |
| 700 | lstr->lstr_offset = tmps - str_get(st[1]); |
| 701 | lstr->lstr_len = anum; |
| 702 | } |
| 703 | } |
| 704 | break; |
| 705 | case O_PACK: |
| 706 | (void)do_pack(str,arglast); |
| 378cc40b |
707 | break; |
| a687059c |
708 | case O_GREP: |
| 709 | sp = do_grep(arg,str,gimme,arglast); |
| 710 | goto array_return; |
| 378cc40b |
711 | case O_JOIN: |
| a687059c |
712 | do_join(str,arglast); |
| 378cc40b |
713 | break; |
| 714 | case O_SLT: |
| a687059c |
715 | tmps = str_get(st[1]); |
| 716 | value = (double) (str_cmp(st[1],st[2]) < 0); |
| 378cc40b |
717 | goto donumset; |
| 718 | case O_SGT: |
| a687059c |
719 | tmps = str_get(st[1]); |
| 720 | value = (double) (str_cmp(st[1],st[2]) > 0); |
| 378cc40b |
721 | goto donumset; |
| 722 | case O_SLE: |
| a687059c |
723 | tmps = str_get(st[1]); |
| 724 | value = (double) (str_cmp(st[1],st[2]) <= 0); |
| 378cc40b |
725 | goto donumset; |
| 726 | case O_SGE: |
| a687059c |
727 | tmps = str_get(st[1]); |
| 728 | value = (double) (str_cmp(st[1],st[2]) >= 0); |
| 378cc40b |
729 | goto donumset; |
| 730 | case O_SEQ: |
| a687059c |
731 | tmps = str_get(st[1]); |
| 732 | value = (double) str_eq(st[1],st[2]); |
| 378cc40b |
733 | goto donumset; |
| 734 | case O_SNE: |
| a687059c |
735 | tmps = str_get(st[1]); |
| 736 | value = (double) !str_eq(st[1],st[2]); |
| 378cc40b |
737 | goto donumset; |
| 738 | case O_SUBR: |
| a687059c |
739 | sp = do_subr(arg,gimme,arglast); |
| 740 | st = stack->ary_array + arglast[0]; /* maybe realloced */ |
| 741 | goto array_return; |
| 742 | case O_DBSUBR: |
| 743 | sp = do_dbsubr(arg,gimme,arglast); |
| 744 | st = stack->ary_array + arglast[0]; /* maybe realloced */ |
| 745 | goto array_return; |
| 378cc40b |
746 | case O_SORT: |
| a687059c |
747 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 748 | stab = arg[1].arg_ptr.arg_stab; |
| 749 | else |
| 750 | stab = stabent(str_get(st[1]),TRUE); |
| 751 | if (!stab) |
| 378cc40b |
752 | stab = defoutstab; |
| a687059c |
753 | sp = do_sort(str,stab, |
| 754 | gimme,arglast); |
| 755 | goto array_return; |
| 756 | case O_REVERSE: |
| 757 | sp = do_reverse(str, |
| 758 | gimme,arglast); |
| 759 | goto array_return; |
| 760 | case O_WARN: |
| 761 | if (arglast[2] - arglast[1] != 1) { |
| 762 | do_join(str,arglast); |
| 763 | tmps = str_get(st[1]); |
| 764 | } |
| 378cc40b |
765 | else { |
| a687059c |
766 | str = st[2]; |
| 767 | tmps = str_get(st[2]); |
| 378cc40b |
768 | } |
| a687059c |
769 | if (!tmps || !*tmps) |
| 770 | tmps = "Warning: something's wrong"; |
| 771 | warn("%s",tmps); |
| 772 | goto say_yes; |
| 773 | case O_DIE: |
| 774 | if (arglast[2] - arglast[1] != 1) { |
| 775 | do_join(str,arglast); |
| 776 | tmps = str_get(st[1]); |
| 378cc40b |
777 | } |
| a687059c |
778 | else { |
| 779 | str = st[2]; |
| 780 | tmps = str_get(st[2]); |
| 781 | } |
| 782 | if (!tmps || !*tmps) |
| 783 | exit(1); |
| 784 | fatal("%s",tmps); |
| 785 | goto say_zero; |
| 378cc40b |
786 | case O_PRTF: |
| 787 | case O_PRINT: |
| a687059c |
788 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 789 | stab = arg[1].arg_ptr.arg_stab; |
| 790 | else |
| 791 | stab = stabent(str_get(st[1]),TRUE); |
| 792 | if (!stab) |
| 378cc40b |
793 | stab = defoutstab; |
| a687059c |
794 | if (!stab_io(stab)) { |
| 795 | if (dowarn) |
| 796 | warn("Filehandle never opened"); |
| 797 | goto say_zero; |
| 798 | } |
| 799 | if (!(fp = stab_io(stab)->ofp)) { |
| 800 | if (dowarn) { |
| 801 | if (stab_io(stab)->ifp) |
| 802 | warn("Filehandle opened only for input"); |
| 803 | else |
| 804 | warn("Print on closed filehandle"); |
| 805 | } |
| 806 | goto say_zero; |
| 378cc40b |
807 | } |
| 378cc40b |
808 | else { |
| a687059c |
809 | if (optype == O_PRTF || arglast[2] - arglast[1] != 1) |
| 810 | value = (double)do_aprint(arg,fp,arglast); |
| 378cc40b |
811 | else { |
| a687059c |
812 | value = (double)do_print(st[2],fp); |
| 813 | if (orslen && optype == O_PRINT) |
| 814 | if (fwrite(ors, 1, orslen, fp) == 0) |
| 815 | goto say_zero; |
| 378cc40b |
816 | } |
| a687059c |
817 | if (stab_io(stab)->flags & IOF_FLUSH) |
| 818 | if (fflush(fp) == EOF) |
| 819 | goto say_zero; |
| 378cc40b |
820 | } |
| 821 | goto donumset; |
| 822 | case O_CHDIR: |
| a687059c |
823 | if (maxarg < 1) |
| 824 | tmps = str_get(stab_val(defstab)); |
| 825 | else |
| 826 | tmps = str_get(st[1]); |
| 827 | if (!tmps || !*tmps) { |
| 828 | tmpstr = hfetch(stab_hash(envstab),"HOME",4,FALSE); |
| 829 | if (tmpstr) |
| 830 | tmps = str_get(tmpstr); |
| 831 | } |
| 832 | if (!tmps || !*tmps) { |
| 833 | tmpstr = hfetch(stab_hash(envstab),"LOGDIR",6,FALSE); |
| 834 | if (tmpstr) |
| 835 | tmps = str_get(tmpstr); |
| 836 | } |
| 837 | #ifdef TAINT |
| 838 | taintproper("Insecure dependency in chdir"); |
| 839 | #endif |
| 378cc40b |
840 | value = (double)(chdir(tmps) >= 0); |
| 841 | goto donumset; |
| 378cc40b |
842 | case O_EXIT: |
| a687059c |
843 | if (maxarg < 1) |
| 844 | anum = 0; |
| 845 | else |
| 846 | anum = (int)str_gnum(st[1]); |
| 847 | exit(anum); |
| 848 | goto say_zero; |
| 378cc40b |
849 | case O_RESET: |
| a687059c |
850 | if (maxarg < 1) |
| 851 | tmps = ""; |
| 852 | else |
| 853 | tmps = str_get(st[1]); |
| 854 | str_reset(tmps,arg[2].arg_ptr.arg_hash); |
| 378cc40b |
855 | value = 1.0; |
| 856 | goto donumset; |
| 857 | case O_LIST: |
| a687059c |
858 | if (gimme == G_ARRAY) |
| 859 | goto array_return; |
| 378cc40b |
860 | if (maxarg > 0) |
| a687059c |
861 | str = st[sp - arglast[0]]; /* unwanted list, return last item */ |
| 378cc40b |
862 | else |
| a687059c |
863 | str = &str_undef; |
| 378cc40b |
864 | break; |
| 865 | case O_EOF: |
| 866 | if (maxarg <= 0) |
| 867 | stab = last_in_stab; |
| a687059c |
868 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 378cc40b |
869 | stab = arg[1].arg_ptr.arg_stab; |
| 870 | else |
| a687059c |
871 | stab = stabent(str_get(st[1]),TRUE); |
| 378cc40b |
872 | str_set(str, do_eof(stab) ? Yes : No); |
| 873 | STABSET(str); |
| 874 | break; |
| a687059c |
875 | case O_GETC: |
| 378cc40b |
876 | if (maxarg <= 0) |
| a687059c |
877 | stab = stdinstab; |
| 878 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 378cc40b |
879 | stab = arg[1].arg_ptr.arg_stab; |
| 880 | else |
| a687059c |
881 | stab = stabent(str_get(st[1]),TRUE); |
| 882 | if (do_eof(stab)) /* make sure we have fp with something */ |
| 883 | str_set(str, No); |
| 884 | else { |
| 885 | #ifdef TAINT |
| 886 | tainted = 1; |
| 887 | #endif |
| 888 | str_set(str," "); |
| 889 | *str->str_ptr = getc(stab_io(stab)->ifp); /* should never be EOF */ |
| 890 | } |
| 891 | STABSET(str); |
| 892 | break; |
| 893 | case O_TELL: |
| 894 | if (maxarg <= 0) |
| 895 | stab = last_in_stab; |
| 896 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 897 | stab = arg[1].arg_ptr.arg_stab; |
| 898 | else |
| 899 | stab = stabent(str_get(st[1]),TRUE); |
| 900 | #ifndef lint |
| 901 | value = (double)do_tell(stab); |
| 902 | #else |
| 903 | (void)do_tell(stab); |
| 904 | #endif |
| 905 | goto donumset; |
| 906 | case O_RECV: |
| 907 | case O_READ: |
| 908 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 909 | stab = arg[1].arg_ptr.arg_stab; |
| 910 | else |
| 911 | stab = stabent(str_get(st[1]),TRUE); |
| 912 | tmps = str_get(st[2]); |
| 913 | anum = (int)str_gnum(st[3]); |
| 914 | STR_GROW(st[2], anum+1), (tmps = str_get(st[2])); /* sneaky */ |
| 915 | errno = 0; |
| 916 | if (!stab_io(stab) || !stab_io(stab)->ifp) |
| 917 | goto say_zero; |
| 918 | #ifdef SOCKET |
| 919 | else if (optype == O_RECV) { |
| 920 | argtype = sizeof buf; |
| 921 | optype = (int)str_gnum(st[4]); |
| 922 | anum = recvfrom(fileno(stab_io(stab)->ifp), tmps, anum, optype, |
| 923 | buf, &argtype); |
| 924 | if (anum >= 0) { |
| 925 | st[2]->str_cur = anum; |
| 926 | st[2]->str_ptr[anum] = '\0'; |
| 927 | str_nset(str,buf,argtype); |
| 928 | } |
| 929 | else |
| 930 | str_sset(str,&str_undef); |
| 931 | break; |
| 932 | } |
| 933 | else if (stab_io(stab)->type == 's') { |
| 934 | argtype = sizeof buf; |
| 935 | anum = recvfrom(fileno(stab_io(stab)->ifp), tmps, anum, 0, |
| 936 | buf, &argtype); |
| 937 | } |
| 938 | #else |
| 939 | else if (optype == O_RECV) |
| 940 | goto badsock; |
| 941 | #endif |
| 942 | else |
| 943 | anum = fread(tmps, 1, anum, stab_io(stab)->ifp); |
| 944 | if (anum < 0) |
| 945 | goto say_undef; |
| 946 | st[2]->str_cur = anum; |
| 947 | st[2]->str_ptr[anum] = '\0'; |
| 948 | value = (double)anum; |
| 949 | goto donumset; |
| 950 | case O_SEND: |
| 951 | #ifdef SOCKET |
| 952 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 953 | stab = arg[1].arg_ptr.arg_stab; |
| 954 | else |
| 955 | stab = stabent(str_get(st[1]),TRUE); |
| 956 | tmps = str_get(st[2]); |
| 957 | anum = (int)str_gnum(st[3]); |
| 958 | optype = sp - arglast[0]; |
| 959 | errno = 0; |
| 960 | if (optype > 4) |
| 961 | warn("Too many args on send"); |
| 962 | if (optype >= 4) { |
| 963 | tmps2 = str_get(st[4]); |
| 964 | anum = sendto(fileno(stab_io(stab)->ifp), tmps, st[2]->str_cur, |
| 965 | anum, tmps2, st[4]->str_cur); |
| 966 | } |
| 967 | else |
| 968 | anum = send(fileno(stab_io(stab)->ifp), tmps, st[2]->str_cur, anum); |
| 969 | if (anum < 0) |
| 970 | goto say_undef; |
| 971 | value = (double)anum; |
| 972 | goto donumset; |
| 973 | #else |
| 974 | goto badsock; |
| 975 | #endif |
| 976 | case O_SEEK: |
| 977 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 978 | stab = arg[1].arg_ptr.arg_stab; |
| 378cc40b |
979 | else |
| a687059c |
980 | stab = stabent(str_get(st[1]),TRUE); |
| 981 | value = str_gnum(st[2]); |
| 378cc40b |
982 | str_set(str, do_seek(stab, |
| a687059c |
983 | (long)value, (int)str_gnum(st[3]) ) ? Yes : No); |
| 378cc40b |
984 | STABSET(str); |
| 985 | break; |
| a687059c |
986 | case O_RETURN: |
| 987 | tmps = "SUB"; /* just fake up a "last SUB" */ |
| 988 | optype = O_LAST; |
| 989 | if (gimme == G_ARRAY) { |
| 990 | lastretstr = Nullstr; |
| 991 | lastspbase = arglast[1]; |
| 992 | lastsize = arglast[2] - arglast[1]; |
| 993 | } |
| 994 | else |
| 995 | lastretstr = str_static(st[arglast[2] - arglast[0]]); |
| 996 | goto dopop; |
| 378cc40b |
997 | case O_REDO: |
| 998 | case O_NEXT: |
| 999 | case O_LAST: |
| 1000 | if (maxarg > 0) { |
| a687059c |
1001 | tmps = str_get(arg[1].arg_ptr.arg_str); |
| 1002 | dopop: |
| 378cc40b |
1003 | while (loop_ptr >= 0 && (!loop_stack[loop_ptr].loop_label || |
| 1004 | strNE(tmps,loop_stack[loop_ptr].loop_label) )) { |
| 1005 | #ifdef DEBUGGING |
| 1006 | if (debug & 4) { |
| 1007 | deb("(Skipping label #%d %s)\n",loop_ptr, |
| 1008 | loop_stack[loop_ptr].loop_label); |
| 1009 | } |
| 1010 | #endif |
| 1011 | loop_ptr--; |
| 1012 | } |
| 1013 | #ifdef DEBUGGING |
| 1014 | if (debug & 4) { |
| 1015 | deb("(Found label #%d %s)\n",loop_ptr, |
| 1016 | loop_stack[loop_ptr].loop_label); |
| 1017 | } |
| 1018 | #endif |
| 1019 | } |
| 1020 | if (loop_ptr < 0) |
| 1021 | fatal("Bad label: %s", maxarg > 0 ? tmps : "<null>"); |
| a687059c |
1022 | if (!lastretstr && optype == O_LAST && lastsize) { |
| 1023 | st -= arglast[0]; |
| 1024 | st += lastspbase + 1; |
| 1025 | optype = loop_stack[loop_ptr].loop_sp - lastspbase; /* negative */ |
| 1026 | if (optype) { |
| 1027 | for (anum = lastsize; anum > 0; anum--,st++) |
| 1028 | st[optype] = str_static(st[0]); |
| 1029 | } |
| 1030 | longjmp(loop_stack[loop_ptr].loop_env, O_LAST); |
| 1031 | } |
| 378cc40b |
1032 | longjmp(loop_stack[loop_ptr].loop_env, optype); |
| a687059c |
1033 | case O_DUMP: |
| 378cc40b |
1034 | case O_GOTO:/* shudder */ |
| a687059c |
1035 | goto_targ = str_get(arg[1].arg_ptr.arg_str); |
| 1036 | if (!*goto_targ) |
| 1037 | goto_targ = Nullch; /* just restart from top */ |
| 1038 | if (optype == O_DUMP) { |
| 1039 | do_undump = 1; |
| 1040 | abort(); |
| 1041 | } |
| 378cc40b |
1042 | longjmp(top_env, 1); |
| 1043 | case O_INDEX: |
| a687059c |
1044 | tmps = str_get(st[1]); |
| 1045 | #ifndef lint |
| 1046 | if (!(tmps2 = fbminstr((unsigned char*)tmps, |
| 1047 | (unsigned char*)tmps + st[1]->str_cur, st[2]))) |
| 1048 | #else |
| 1049 | if (tmps2 = fbminstr(Null(unsigned char*),Null(unsigned char*),Nullstr)) |
| 1050 | #endif |
| 1051 | value = (double)(-1 + arybase); |
| 1052 | else |
| 1053 | value = (double)(tmps2 - tmps + arybase); |
| 1054 | goto donumset; |
| 1055 | case O_RINDEX: |
| 1056 | tmps = str_get(st[1]); |
| 1057 | tmps2 = str_get(st[2]); |
| 1058 | #ifndef lint |
| 1059 | if (!(tmps2 = rninstr(tmps, tmps + st[1]->str_cur, |
| 1060 | tmps2, tmps2 + st[2]->str_cur))) |
| 1061 | #else |
| 1062 | if (tmps2 = rninstr(Nullch,Nullch,Nullch,Nullch)) |
| 1063 | #endif |
| 378cc40b |
1064 | value = (double)(-1 + arybase); |
| 1065 | else |
| 1066 | value = (double)(tmps2 - tmps + arybase); |
| 1067 | goto donumset; |
| 1068 | case O_TIME: |
| a687059c |
1069 | #ifndef lint |
| 378cc40b |
1070 | value = (double) time(Null(long*)); |
| a687059c |
1071 | #endif |
| 378cc40b |
1072 | goto donumset; |
| 1073 | case O_TMS: |
| a687059c |
1074 | sp = do_tms(str,gimme,arglast); |
| 1075 | goto array_return; |
| 378cc40b |
1076 | case O_LOCALTIME: |
| a687059c |
1077 | if (maxarg < 1) |
| 1078 | (void)time(&when); |
| 1079 | else |
| 1080 | when = (long)str_gnum(st[1]); |
| 1081 | sp = do_time(str,localtime(&when), |
| 1082 | gimme,arglast); |
| 1083 | goto array_return; |
| 378cc40b |
1084 | case O_GMTIME: |
| a687059c |
1085 | if (maxarg < 1) |
| 1086 | (void)time(&when); |
| 1087 | else |
| 1088 | when = (long)str_gnum(st[1]); |
| 1089 | sp = do_time(str,gmtime(&when), |
| 1090 | gimme,arglast); |
| 1091 | goto array_return; |
| 1092 | case O_LSTAT: |
| 378cc40b |
1093 | case O_STAT: |
| a687059c |
1094 | sp = do_stat(str,arg, |
| 1095 | gimme,arglast); |
| 1096 | goto array_return; |
| 378cc40b |
1097 | case O_CRYPT: |
| 1098 | #ifdef CRYPT |
| a687059c |
1099 | tmps = str_get(st[1]); |
| 1100 | #ifdef FCRYPT |
| 1101 | str_set(str,fcrypt(tmps,str_get(st[2]))); |
| 1102 | #else |
| 1103 | str_set(str,crypt(tmps,str_get(st[2]))); |
| 1104 | #endif |
| 378cc40b |
1105 | #else |
| 1106 | fatal( |
| 1107 | "The crypt() function is unimplemented due to excessive paranoia."); |
| 1108 | #endif |
| 1109 | break; |
| a687059c |
1110 | case O_ATAN2: |
| 1111 | value = str_gnum(st[1]); |
| 1112 | value = atan2(value,str_gnum(st[2])); |
| 1113 | goto donumset; |
| 1114 | case O_SIN: |
| 1115 | if (maxarg < 1) |
| 1116 | value = str_gnum(stab_val(defstab)); |
| 1117 | else |
| 1118 | value = str_gnum(st[1]); |
| 1119 | value = sin(value); |
| 1120 | goto donumset; |
| 1121 | case O_COS: |
| 1122 | if (maxarg < 1) |
| 1123 | value = str_gnum(stab_val(defstab)); |
| 1124 | else |
| 1125 | value = str_gnum(st[1]); |
| 1126 | value = cos(value); |
| 1127 | goto donumset; |
| 1128 | case O_RAND: |
| 1129 | if (maxarg < 1) |
| 1130 | value = 1.0; |
| 1131 | else |
| 1132 | value = str_gnum(st[1]); |
| 1133 | if (value == 0.0) |
| 1134 | value = 1.0; |
| 1135 | #if RANDBITS == 31 |
| 1136 | value = rand() * value / 2147483648.0; |
| 1137 | #else |
| 1138 | #if RANDBITS == 16 |
| 1139 | value = rand() * value / 65536.0; |
| 1140 | #else |
| 1141 | #if RANDBITS == 15 |
| 1142 | value = rand() * value / 32768.0; |
| 1143 | #else |
| 1144 | value = rand() * value / (double)(((unsigned long)1) << RANDBITS); |
| 1145 | #endif |
| 1146 | #endif |
| 1147 | #endif |
| 1148 | goto donumset; |
| 1149 | case O_SRAND: |
| 1150 | if (maxarg < 1) { |
| 1151 | (void)time(&when); |
| 1152 | anum = when; |
| 1153 | } |
| 1154 | else |
| 1155 | anum = (int)str_gnum(st[1]); |
| 1156 | (void)srand(anum); |
| 1157 | goto say_yes; |
| 378cc40b |
1158 | case O_EXP: |
| a687059c |
1159 | if (maxarg < 1) |
| 1160 | value = str_gnum(stab_val(defstab)); |
| 1161 | else |
| 1162 | value = str_gnum(st[1]); |
| 1163 | value = exp(value); |
| 378cc40b |
1164 | goto donumset; |
| 1165 | case O_LOG: |
| a687059c |
1166 | if (maxarg < 1) |
| 1167 | value = str_gnum(stab_val(defstab)); |
| 1168 | else |
| 1169 | value = str_gnum(st[1]); |
| 1170 | value = log(value); |
| 378cc40b |
1171 | goto donumset; |
| 1172 | case O_SQRT: |
| a687059c |
1173 | if (maxarg < 1) |
| 1174 | value = str_gnum(stab_val(defstab)); |
| 1175 | else |
| 1176 | value = str_gnum(st[1]); |
| 1177 | value = sqrt(value); |
| 378cc40b |
1178 | goto donumset; |
| 1179 | case O_INT: |
| a687059c |
1180 | if (maxarg < 1) |
| 1181 | value = str_gnum(stab_val(defstab)); |
| 1182 | else |
| 1183 | value = str_gnum(st[1]); |
| 378cc40b |
1184 | if (value >= 0.0) |
| a687059c |
1185 | (void)modf(value,&value); |
| 378cc40b |
1186 | else { |
| a687059c |
1187 | (void)modf(-value,&value); |
| 378cc40b |
1188 | value = -value; |
| 1189 | } |
| 1190 | goto donumset; |
| 1191 | case O_ORD: |
| a687059c |
1192 | if (maxarg < 1) |
| 1193 | tmps = str_get(stab_val(defstab)); |
| 1194 | else |
| 1195 | tmps = str_get(st[1]); |
| 1196 | #ifndef I286 |
| 1197 | value = (double) *tmps; |
| 1198 | #else |
| 1199 | anum = (int) *tmps; |
| 1200 | value = (double) anum; |
| 1201 | #endif |
| 378cc40b |
1202 | goto donumset; |
| 1203 | case O_SLEEP: |
| a687059c |
1204 | if (maxarg < 1) |
| 1205 | tmps = Nullch; |
| 1206 | else |
| 1207 | tmps = str_get(st[1]); |
| 1208 | (void)time(&when); |
| 378cc40b |
1209 | if (!tmps || !*tmps) |
| 1210 | sleep((32767<<16)+32767); |
| 1211 | else |
| a687059c |
1212 | sleep((unsigned int)atoi(tmps)); |
| 1213 | #ifndef lint |
| 378cc40b |
1214 | value = (double)when; |
| a687059c |
1215 | (void)time(&when); |
| 378cc40b |
1216 | value = ((double)when) - value; |
| a687059c |
1217 | #endif |
| 378cc40b |
1218 | goto donumset; |
| a687059c |
1219 | case O_RANGE: |
| 1220 | sp = do_range(gimme,arglast); |
| 1221 | goto array_return; |
| 1222 | case O_F_OR_R: |
| 1223 | if (gimme == G_ARRAY) { /* it's a range */ |
| 1224 | /* can we optimize to constant array? */ |
| 1225 | if ((arg[1].arg_type & A_MASK) == A_SINGLE && |
| 1226 | (arg[2].arg_type & A_MASK) == A_SINGLE) { |
| 1227 | st[2] = arg[2].arg_ptr.arg_str; |
| 1228 | sp = do_range(gimme,arglast); |
| 1229 | st = stack->ary_array; |
| 1230 | maxarg = sp - arglast[0]; |
| 1231 | str_free(arg[1].arg_ptr.arg_str); |
| 1232 | str_free(arg[2].arg_ptr.arg_str); |
| 1233 | arg->arg_type = O_ARRAY; |
| 1234 | arg[1].arg_type = A_STAB|A_DONT; |
| 1235 | arg->arg_len = 1; |
| 1236 | stab = arg[1].arg_ptr.arg_stab = aadd(genstab()); |
| 1237 | ary = stab_array(stab); |
| 1238 | afill(ary,maxarg - 1); |
| 1239 | st += arglast[0]+1; |
| 1240 | while (maxarg-- > 0) |
| 1241 | ary->ary_array[maxarg] = str_smake(st[maxarg]); |
| 1242 | goto array_return; |
| 1243 | } |
| 1244 | arg->arg_type = optype = O_RANGE; |
| 1245 | maxarg = arg->arg_len = 2; |
| 1246 | anum = 2; |
| 1247 | arg[anum].arg_flags &= ~AF_ARYOK; |
| 1248 | argflags = arg[anum].arg_flags; |
| 1249 | argtype = arg[anum].arg_type & A_MASK; |
| 1250 | arg[anum].arg_type = argtype; |
| 1251 | argptr = arg[anum].arg_ptr; |
| 1252 | sp = arglast[0]; |
| 1253 | st -= sp; |
| 1254 | sp++; |
| 1255 | goto re_eval; |
| 1256 | } |
| 1257 | arg->arg_type = O_FLIP; |
| 1258 | /* FALL THROUGH */ |
| 378cc40b |
1259 | case O_FLIP: |
| a687059c |
1260 | if ((arg[1].arg_type & A_MASK) == A_SINGLE ? |
| 1261 | last_in_stab && (int)str_gnum(st[1]) == stab_io(last_in_stab)->lines |
| 1262 | : |
| 1263 | str_true(st[1]) ) { |
| 378cc40b |
1264 | str_numset(str,0.0); |
| 1265 | anum = 2; |
| 1266 | arg->arg_type = optype = O_FLOP; |
| a687059c |
1267 | arg[2].arg_type &= ~A_DONT; |
| 1268 | arg[1].arg_type |= A_DONT; |
| 378cc40b |
1269 | argflags = arg[2].arg_flags; |
| a687059c |
1270 | argtype = arg[2].arg_type & A_MASK; |
| 378cc40b |
1271 | argptr = arg[2].arg_ptr; |
| a687059c |
1272 | sp = arglast[0]; |
| 1273 | st -= sp; |
| 378cc40b |
1274 | goto re_eval; |
| 1275 | } |
| 1276 | str_set(str,""); |
| 1277 | break; |
| 1278 | case O_FLOP: |
| 1279 | str_inc(str); |
| a687059c |
1280 | if ((arg[2].arg_type & A_MASK) == A_SINGLE ? |
| 1281 | last_in_stab && (int)str_gnum(st[2]) == stab_io(last_in_stab)->lines |
| 1282 | : |
| 1283 | str_true(st[2]) ) { |
| 378cc40b |
1284 | arg->arg_type = O_FLIP; |
| a687059c |
1285 | arg[1].arg_type &= ~A_DONT; |
| 1286 | arg[2].arg_type |= A_DONT; |
| 378cc40b |
1287 | str_cat(str,"E0"); |
| 1288 | } |
| 1289 | break; |
| 1290 | case O_FORK: |
| a687059c |
1291 | anum = fork(); |
| 1292 | if (!anum && (tmpstab = stabent("$",allstabs))) |
| 1293 | str_numset(STAB_STR(tmpstab),(double)getpid()); |
| 1294 | value = (double)anum; |
| 378cc40b |
1295 | goto donumset; |
| 1296 | case O_WAIT: |
| a687059c |
1297 | #ifndef lint |
| 378cc40b |
1298 | ihand = signal(SIGINT, SIG_IGN); |
| 1299 | qhand = signal(SIGQUIT, SIG_IGN); |
| a687059c |
1300 | anum = wait(&argflags); |
| 1301 | if (anum > 0) |
| 1302 | pidgone(anum,argflags); |
| 1303 | value = (double)anum; |
| 1304 | #else |
| 1305 | ihand = qhand = 0; |
| 1306 | #endif |
| 1307 | (void)signal(SIGINT, ihand); |
| 1308 | (void)signal(SIGQUIT, qhand); |
| 378cc40b |
1309 | statusvalue = (unsigned short)argflags; |
| 1310 | goto donumset; |
| 1311 | case O_SYSTEM: |
| a687059c |
1312 | #ifdef TAINT |
| 1313 | if (arglast[2] - arglast[1] == 1) { |
| 1314 | taintenv(); |
| 1315 | tainted |= st[2]->str_tainted; |
| 1316 | taintproper("Insecure dependency in system"); |
| 1317 | } |
| 1318 | #endif |
| 378cc40b |
1319 | while ((anum = vfork()) == -1) { |
| 1320 | if (errno != EAGAIN) { |
| 1321 | value = -1.0; |
| 1322 | goto donumset; |
| 1323 | } |
| 1324 | sleep(5); |
| 1325 | } |
| 1326 | if (anum > 0) { |
| a687059c |
1327 | #ifndef lint |
| 378cc40b |
1328 | ihand = signal(SIGINT, SIG_IGN); |
| 1329 | qhand = signal(SIGQUIT, SIG_IGN); |
| a687059c |
1330 | while ((argtype = wait(&argflags)) != anum && argtype >= 0) |
| 1331 | pidgone(argtype,argflags); |
| 1332 | #else |
| 1333 | ihand = qhand = 0; |
| 1334 | #endif |
| 1335 | (void)signal(SIGINT, ihand); |
| 1336 | (void)signal(SIGQUIT, qhand); |
| 378cc40b |
1337 | statusvalue = (unsigned short)argflags; |
| 1338 | if (argtype == -1) |
| 1339 | value = -1.0; |
| 1340 | else { |
| 1341 | value = (double)((unsigned int)argflags & 0xffff); |
| 1342 | } |
| 1343 | goto donumset; |
| 1344 | } |
| a687059c |
1345 | if ((arg[1].arg_type & A_MASK) == A_STAB) |
| 1346 | value = (double)do_aexec(st[1],arglast); |
| 1347 | else if (arglast[2] - arglast[1] != 1) |
| 1348 | value = (double)do_aexec(Nullstr,arglast); |
| 378cc40b |
1349 | else { |
| a687059c |
1350 | value = (double)do_exec(str_get(str_static(st[2]))); |
| 378cc40b |
1351 | } |
| 1352 | _exit(-1); |
| 1353 | case O_EXEC: |
| a687059c |
1354 | if ((arg[1].arg_type & A_MASK) == A_STAB) |
| 1355 | value = (double)do_aexec(st[1],arglast); |
| 1356 | else if (arglast[2] - arglast[1] != 1) |
| 1357 | value = (double)do_aexec(Nullstr,arglast); |
| 378cc40b |
1358 | else { |
| a687059c |
1359 | value = (double)do_exec(str_get(str_static(st[2]))); |
| 378cc40b |
1360 | } |
| 1361 | goto donumset; |
| 1362 | case O_HEX: |
| 1363 | argtype = 4; |
| 1364 | goto snarfnum; |
| 1365 | |
| 1366 | case O_OCT: |
| 1367 | argtype = 3; |
| 1368 | |
| 1369 | snarfnum: |
| 1370 | anum = 0; |
| a687059c |
1371 | if (maxarg < 1) |
| 1372 | tmps = str_get(stab_val(defstab)); |
| 1373 | else |
| 1374 | tmps = str_get(st[1]); |
| 378cc40b |
1375 | for (;;) { |
| 1376 | switch (*tmps) { |
| 1377 | default: |
| 1378 | goto out; |
| 1379 | case '8': case '9': |
| 1380 | if (argtype != 4) |
| 1381 | goto out; |
| 1382 | /* FALL THROUGH */ |
| 1383 | case '0': case '1': case '2': case '3': case '4': |
| 1384 | case '5': case '6': case '7': |
| 1385 | anum <<= argtype; |
| 1386 | anum += *tmps++ & 15; |
| 1387 | break; |
| 1388 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
| 1389 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
| 1390 | if (argtype != 4) |
| 1391 | goto out; |
| 1392 | anum <<= 4; |
| 1393 | anum += (*tmps++ & 7) + 9; |
| 1394 | break; |
| 1395 | case 'x': |
| 1396 | argtype = 4; |
| 1397 | tmps++; |
| 1398 | break; |
| 1399 | } |
| 1400 | } |
| 1401 | out: |
| 1402 | value = (double)anum; |
| 1403 | goto donumset; |
| 1404 | case O_CHMOD: |
| 1405 | case O_CHOWN: |
| 1406 | case O_KILL: |
| 1407 | case O_UNLINK: |
| 1408 | case O_UTIME: |
| a687059c |
1409 | value = (double)apply(optype,arglast); |
| 378cc40b |
1410 | goto donumset; |
| 1411 | case O_UMASK: |
| a687059c |
1412 | if (maxarg < 1) { |
| 1413 | anum = umask(0); |
| 1414 | (void)umask(anum); |
| 1415 | } |
| 1416 | else |
| 1417 | anum = umask((int)str_gnum(st[1])); |
| 1418 | value = (double)anum; |
| 1419 | #ifdef TAINT |
| 1420 | taintproper("Insecure dependency in umask"); |
| 1421 | #endif |
| 378cc40b |
1422 | goto donumset; |
| 1423 | case O_RENAME: |
| a687059c |
1424 | tmps = str_get(st[1]); |
| 1425 | tmps2 = str_get(st[2]); |
| 1426 | #ifdef TAINT |
| 1427 | taintproper("Insecure dependency in rename"); |
| 1428 | #endif |
| 378cc40b |
1429 | #ifdef RENAME |
| a687059c |
1430 | value = (double)(rename(tmps,tmps2) >= 0); |
| 378cc40b |
1431 | #else |
| 378cc40b |
1432 | if (euid || stat(tmps2,&statbuf) < 0 || |
| 1433 | (statbuf.st_mode & S_IFMT) != S_IFDIR ) |
| a687059c |
1434 | (void)UNLINK(tmps2); /* avoid unlinking a directory */ |
| 378cc40b |
1435 | if (!(anum = link(tmps,tmps2))) |
| 1436 | anum = UNLINK(tmps); |
| 1437 | value = (double)(anum >= 0); |
| 1438 | #endif |
| 1439 | goto donumset; |
| 1440 | case O_LINK: |
| a687059c |
1441 | tmps = str_get(st[1]); |
| 1442 | tmps2 = str_get(st[2]); |
| 1443 | #ifdef TAINT |
| 1444 | taintproper("Insecure dependency in link"); |
| 1445 | #endif |
| 1446 | value = (double)(link(tmps,tmps2) >= 0); |
| 1447 | goto donumset; |
| 1448 | case O_MKDIR: |
| 1449 | tmps = str_get(st[1]); |
| 1450 | anum = (int)str_gnum(st[2]); |
| 1451 | #ifdef TAINT |
| 1452 | taintproper("Insecure dependency in mkdir"); |
| 1453 | #endif |
| 1454 | #ifdef MKDIR |
| 1455 | value = (double)(mkdir(tmps,anum) >= 0); |
| bf38876a |
1456 | goto donumset; |
| a687059c |
1457 | #else |
| bf38876a |
1458 | (void)strcpy(buf,"mkdir "); |
| 1459 | #endif |
| 1460 | #if !defined(MKDIR) || !defined(RMDIR) |
| a687059c |
1461 | one_liner: |
| bf38876a |
1462 | for (tmps2 = buf+6; *tmps; ) { |
| 1463 | *tmps2++ = '\\'; |
| 1464 | *tmps2++ = *tmps++; |
| 1465 | } |
| 1466 | (void)strcpy(tmps2," 2>&1"); |
| a687059c |
1467 | rsfp = mypopen(buf,"r"); |
| 1468 | if (rsfp) { |
| 1469 | *buf = '\0'; |
| 1470 | tmps2 = fgets(buf,sizeof buf,rsfp); |
| 1471 | (void)mypclose(rsfp); |
| 1472 | if (tmps2 != Nullch) { |
| bf38876a |
1473 | for (errno = 1; errno < sys_nerr; errno++) { |
| a687059c |
1474 | if (instr(buf,sys_errlist[errno])) /* you don't see this */ |
| 1475 | goto say_zero; |
| 1476 | } |
| 1477 | errno = 0; |
| bf38876a |
1478 | #ifndef EACCES |
| 1479 | #define EACCES EPERM |
| 1480 | #endif |
| 1481 | if (instr(buf,"cannot make")) |
| 1482 | errno = EEXIST; |
| 1483 | else if (instr(buf,"non-exist")) |
| 1484 | errno = ENOENT; |
| 1485 | else if (instr(buf,"not empty")) |
| 1486 | errno = EBUSY; |
| 1487 | else if (instr(buf,"cannot access")) |
| 1488 | errno = EACCES; |
| 1489 | else |
| 1490 | errno = EPERM; |
| a687059c |
1491 | goto say_zero; |
| 1492 | } |
| bf38876a |
1493 | else { /* some mkdirs return no failure indication */ |
| 1494 | tmps = str_get(st[1]); |
| 1495 | anum = (stat(tmps,&statbuf) >= 0); |
| 1496 | if (optype == O_RMDIR) |
| 1497 | anum = !anum; |
| 1498 | if (anum) |
| 1499 | errno = 0; |
| 1500 | else |
| 1501 | errno = EACCES; /* a guess */ |
| 1502 | value = (double)anum; |
| 1503 | } |
| 1504 | goto donumset; |
| a687059c |
1505 | } |
| 1506 | else |
| 1507 | goto say_zero; |
| 1508 | #endif |
| a687059c |
1509 | case O_RMDIR: |
| 1510 | if (maxarg < 1) |
| 1511 | tmps = str_get(stab_val(defstab)); |
| 1512 | else |
| 1513 | tmps = str_get(st[1]); |
| 1514 | #ifdef TAINT |
| 1515 | taintproper("Insecure dependency in rmdir"); |
| 1516 | #endif |
| 1517 | #ifdef RMDIR |
| 1518 | value = (double)(rmdir(tmps) >= 0); |
| 1519 | goto donumset; |
| 1520 | #else |
| bf38876a |
1521 | (void)strcpy(buf,"rmdir "); |
| a687059c |
1522 | goto one_liner; /* see above in MKDIR */ |
| 1523 | #endif |
| 1524 | case O_GETPPID: |
| 1525 | value = (double)getppid(); |
| 1526 | goto donumset; |
| 1527 | case O_GETPGRP: |
| 1528 | #ifdef GETPGRP |
| 1529 | if (maxarg < 1) |
| 1530 | anum = 0; |
| 1531 | else |
| 1532 | anum = (int)str_gnum(st[1]); |
| 1533 | value = (double)getpgrp(anum); |
| 1534 | goto donumset; |
| 1535 | #else |
| 1536 | fatal("The getpgrp() function is unimplemented on this machine"); |
| 1537 | break; |
| 1538 | #endif |
| 1539 | case O_SETPGRP: |
| 1540 | #ifdef SETPGRP |
| 1541 | argtype = (int)str_gnum(st[1]); |
| 1542 | anum = (int)str_gnum(st[2]); |
| 1543 | #ifdef TAINT |
| 1544 | taintproper("Insecure dependency in setpgrp"); |
| 1545 | #endif |
| 1546 | value = (double)(setpgrp(argtype,anum) >= 0); |
| 1547 | goto donumset; |
| 1548 | #else |
| 1549 | fatal("The setpgrp() function is unimplemented on this machine"); |
| 1550 | break; |
| 1551 | #endif |
| 1552 | case O_GETPRIORITY: |
| 1553 | #ifdef GETPRIORITY |
| 1554 | argtype = (int)str_gnum(st[1]); |
| 1555 | anum = (int)str_gnum(st[2]); |
| 1556 | value = (double)getpriority(argtype,anum); |
| 1557 | goto donumset; |
| 1558 | #else |
| 1559 | fatal("The getpriority() function is unimplemented on this machine"); |
| 1560 | break; |
| 1561 | #endif |
| 1562 | case O_SETPRIORITY: |
| 1563 | #ifdef SETPRIORITY |
| 1564 | argtype = (int)str_gnum(st[1]); |
| 1565 | anum = (int)str_gnum(st[2]); |
| 1566 | optype = (int)str_gnum(st[3]); |
| 1567 | #ifdef TAINT |
| 1568 | taintproper("Insecure dependency in setpriority"); |
| 1569 | #endif |
| 1570 | value = (double)(setpriority(argtype,anum,optype) >= 0); |
| 378cc40b |
1571 | goto donumset; |
| a687059c |
1572 | #else |
| 1573 | fatal("The setpriority() function is unimplemented on this machine"); |
| 1574 | break; |
| 1575 | #endif |
| 1576 | case O_CHROOT: |
| 1577 | if (maxarg < 1) |
| 1578 | tmps = str_get(stab_val(defstab)); |
| 1579 | else |
| 1580 | tmps = str_get(st[1]); |
| 1581 | #ifdef TAINT |
| 1582 | taintproper("Insecure dependency in chroot"); |
| 1583 | #endif |
| 1584 | value = (double)(chroot(tmps) >= 0); |
| 1585 | goto donumset; |
| 1586 | case O_FCNTL: |
| 1587 | case O_IOCTL: |
| 1588 | if (maxarg <= 0) |
| 1589 | stab = last_in_stab; |
| 1590 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1591 | stab = arg[1].arg_ptr.arg_stab; |
| 1592 | else |
| 1593 | stab = stabent(str_get(st[1]),TRUE); |
| 1594 | argtype = (int)str_gnum(st[2]); |
| 1595 | #ifdef TAINT |
| 1596 | taintproper("Insecure dependency in ioctl"); |
| 1597 | #endif |
| 1598 | anum = do_ctl(optype,stab,argtype,st[3]); |
| 1599 | if (anum == -1) |
| 1600 | goto say_undef; |
| 1601 | if (anum != 0) |
| 1602 | goto donumset; |
| 1603 | str_set(str,"0 but true"); |
| 1604 | STABSET(str); |
| 1605 | break; |
| 1606 | case O_FLOCK: |
| 1607 | #ifdef FLOCK |
| 1608 | if (maxarg <= 0) |
| 1609 | stab = last_in_stab; |
| 1610 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1611 | stab = arg[1].arg_ptr.arg_stab; |
| 1612 | else |
| 1613 | stab = stabent(str_get(st[1]),TRUE); |
| 1614 | if (stab && stab_io(stab)) |
| 1615 | fp = stab_io(stab)->ifp; |
| 1616 | else |
| 1617 | fp = Nullfp; |
| 1618 | if (fp) { |
| 1619 | argtype = (int)str_gnum(st[2]); |
| 1620 | value = (double)(flock(fileno(fp),argtype) >= 0); |
| 1621 | } |
| 1622 | else |
| 1623 | value = 0; |
| 1624 | goto donumset; |
| 1625 | #else |
| 1626 | fatal("The flock() function is unimplemented on this machine"); |
| 1627 | break; |
| 1628 | #endif |
| 378cc40b |
1629 | case O_UNSHIFT: |
| a687059c |
1630 | ary = stab_array(arg[1].arg_ptr.arg_stab); |
| 1631 | if (arglast[2] - arglast[1] != 1) |
| 1632 | do_unshift(ary,arglast); |
| 378cc40b |
1633 | else { |
| a687059c |
1634 | str = Str_new(52,0); /* must copy the STR */ |
| 1635 | str_sset(str,st[2]); |
| 378cc40b |
1636 | aunshift(ary,1); |
| a687059c |
1637 | (void)astore(ary,0,str); |
| 378cc40b |
1638 | } |
| 1639 | value = (double)(ary->ary_fill + 1); |
| 1640 | break; |
| 1641 | case O_DOFILE: |
| 1642 | case O_EVAL: |
| a687059c |
1643 | if (maxarg < 1) |
| 1644 | tmpstr = stab_val(defstab); |
| 1645 | else |
| 1646 | tmpstr = |
| 1647 | (arg[1].arg_type & A_MASK) != A_NULL ? st[1] : stab_val(defstab); |
| 1648 | #ifdef TAINT |
| 1649 | tainted |= tmpstr->str_tainted; |
| 1650 | taintproper("Insecure dependency in eval"); |
| 1651 | #endif |
| 1652 | sp = do_eval(tmpstr, optype, arg[2].arg_ptr.arg_hash, |
| 1653 | gimme,arglast); |
| 1654 | goto array_return; |
| 378cc40b |
1655 | |
| 1656 | case O_FTRREAD: |
| 1657 | argtype = 0; |
| 1658 | anum = S_IREAD; |
| 1659 | goto check_perm; |
| 1660 | case O_FTRWRITE: |
| 1661 | argtype = 0; |
| 1662 | anum = S_IWRITE; |
| 1663 | goto check_perm; |
| 1664 | case O_FTREXEC: |
| 1665 | argtype = 0; |
| 1666 | anum = S_IEXEC; |
| 1667 | goto check_perm; |
| 1668 | case O_FTEREAD: |
| 1669 | argtype = 1; |
| 1670 | anum = S_IREAD; |
| 1671 | goto check_perm; |
| 1672 | case O_FTEWRITE: |
| 1673 | argtype = 1; |
| 1674 | anum = S_IWRITE; |
| 1675 | goto check_perm; |
| 1676 | case O_FTEEXEC: |
| 1677 | argtype = 1; |
| 1678 | anum = S_IEXEC; |
| 1679 | check_perm: |
| a687059c |
1680 | if (mystat(arg,st[1]) < 0) |
| 1681 | goto say_undef; |
| 1682 | if (cando(anum,argtype,&statcache)) |
| 1683 | goto say_yes; |
| 1684 | goto say_no; |
| 378cc40b |
1685 | |
| 1686 | case O_FTIS: |
| a687059c |
1687 | if (mystat(arg,st[1]) < 0) |
| 1688 | goto say_undef; |
| 1689 | goto say_yes; |
| 378cc40b |
1690 | case O_FTEOWNED: |
| 1691 | case O_FTROWNED: |
| a687059c |
1692 | if (mystat(arg,st[1]) < 0) |
| 1693 | goto say_undef; |
| 1694 | if (statcache.st_uid == (optype == O_FTEOWNED ? euid : uid) ) |
| 1695 | goto say_yes; |
| 1696 | goto say_no; |
| 378cc40b |
1697 | case O_FTZERO: |
| a687059c |
1698 | if (mystat(arg,st[1]) < 0) |
| 1699 | goto say_undef; |
| 1700 | if (!statcache.st_size) |
| 1701 | goto say_yes; |
| 1702 | goto say_no; |
| 378cc40b |
1703 | case O_FTSIZE: |
| a687059c |
1704 | if (mystat(arg,st[1]) < 0) |
| 1705 | goto say_undef; |
| 1706 | if (statcache.st_size) |
| 1707 | goto say_yes; |
| 1708 | goto say_no; |
| 378cc40b |
1709 | |
| 1710 | case O_FTSOCK: |
| 1711 | #ifdef S_IFSOCK |
| 1712 | anum = S_IFSOCK; |
| 1713 | goto check_file_type; |
| 1714 | #else |
| a687059c |
1715 | goto say_no; |
| 378cc40b |
1716 | #endif |
| 1717 | case O_FTCHR: |
| 1718 | anum = S_IFCHR; |
| 1719 | goto check_file_type; |
| 1720 | case O_FTBLK: |
| 1721 | anum = S_IFBLK; |
| 1722 | goto check_file_type; |
| 1723 | case O_FTFILE: |
| 1724 | anum = S_IFREG; |
| 1725 | goto check_file_type; |
| 1726 | case O_FTDIR: |
| 1727 | anum = S_IFDIR; |
| 1728 | check_file_type: |
| a687059c |
1729 | if (mystat(arg,st[1]) < 0) |
| 1730 | goto say_undef; |
| 1731 | if ((statcache.st_mode & S_IFMT) == anum ) |
| 1732 | goto say_yes; |
| 1733 | goto say_no; |
| 378cc40b |
1734 | case O_FTPIPE: |
| 1735 | #ifdef S_IFIFO |
| 1736 | anum = S_IFIFO; |
| 1737 | goto check_file_type; |
| 1738 | #else |
| a687059c |
1739 | goto say_no; |
| 378cc40b |
1740 | #endif |
| 1741 | case O_FTLINK: |
| a687059c |
1742 | #ifdef SYMLINK |
| 1743 | if (lstat(str_get(st[1]),&statcache) < 0) |
| 1744 | goto say_undef; |
| 1745 | if ((statcache.st_mode & S_IFMT) == S_IFLNK ) |
| 1746 | goto say_yes; |
| 378cc40b |
1747 | #endif |
| a687059c |
1748 | goto say_no; |
| 378cc40b |
1749 | case O_SYMLINK: |
| 1750 | #ifdef SYMLINK |
| a687059c |
1751 | tmps = str_get(st[1]); |
| 1752 | tmps2 = str_get(st[2]); |
| 1753 | #ifdef TAINT |
| 1754 | taintproper("Insecure dependency in symlink"); |
| 1755 | #endif |
| 1756 | value = (double)(symlink(tmps,tmps2) >= 0); |
| 378cc40b |
1757 | goto donumset; |
| 1758 | #else |
| 1759 | fatal("Unsupported function symlink()"); |
| 1760 | #endif |
| a687059c |
1761 | case O_READLINK: |
| 1762 | #ifdef SYMLINK |
| 1763 | if (maxarg < 1) |
| 1764 | tmps = str_get(stab_val(defstab)); |
| 1765 | else |
| 1766 | tmps = str_get(st[1]); |
| 1767 | anum = readlink(tmps,buf,sizeof buf); |
| 1768 | if (anum < 0) |
| 1769 | goto say_undef; |
| 1770 | str_nset(str,buf,anum); |
| 1771 | break; |
| 1772 | #else |
| 1773 | fatal("Unsupported function readlink()"); |
| 1774 | #endif |
| 378cc40b |
1775 | case O_FTSUID: |
| 1776 | anum = S_ISUID; |
| 1777 | goto check_xid; |
| 1778 | case O_FTSGID: |
| 1779 | anum = S_ISGID; |
| 1780 | goto check_xid; |
| 1781 | case O_FTSVTX: |
| 1782 | anum = S_ISVTX; |
| 1783 | check_xid: |
| a687059c |
1784 | if (mystat(arg,st[1]) < 0) |
| 1785 | goto say_undef; |
| 1786 | if (statcache.st_mode & anum) |
| 1787 | goto say_yes; |
| 1788 | goto say_no; |
| 378cc40b |
1789 | case O_FTTTY: |
| a687059c |
1790 | if (arg[1].arg_type & A_DONT) { |
| 378cc40b |
1791 | stab = arg[1].arg_ptr.arg_stab; |
| 1792 | tmps = ""; |
| 1793 | } |
| 1794 | else |
| a687059c |
1795 | stab = stabent(tmps = str_get(st[1]),FALSE); |
| 1796 | if (stab && stab_io(stab) && stab_io(stab)->ifp) |
| 1797 | anum = fileno(stab_io(stab)->ifp); |
| 378cc40b |
1798 | else if (isdigit(*tmps)) |
| 1799 | anum = atoi(tmps); |
| 1800 | else |
| a687059c |
1801 | goto say_undef; |
| 378cc40b |
1802 | if (isatty(anum)) |
| a687059c |
1803 | goto say_yes; |
| 1804 | goto say_no; |
| 378cc40b |
1805 | case O_FTTEXT: |
| 1806 | case O_FTBINARY: |
| a687059c |
1807 | str = do_fttext(arg,st[1]); |
| 378cc40b |
1808 | break; |
| a687059c |
1809 | #ifdef SOCKET |
| 1810 | case O_SOCKET: |
| 1811 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1812 | stab = arg[1].arg_ptr.arg_stab; |
| 1813 | else |
| 1814 | stab = stabent(str_get(st[1]),TRUE); |
| 1815 | #ifndef lint |
| 1816 | value = (double)do_socket(stab,arglast); |
| 1817 | #else |
| 1818 | (void)do_socket(stab,arglast); |
| 1819 | #endif |
| 1820 | goto donumset; |
| 1821 | case O_BIND: |
| 1822 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1823 | stab = arg[1].arg_ptr.arg_stab; |
| 1824 | else |
| 1825 | stab = stabent(str_get(st[1]),TRUE); |
| 1826 | #ifndef lint |
| 1827 | value = (double)do_bind(stab,arglast); |
| 1828 | #else |
| 1829 | (void)do_bind(stab,arglast); |
| 1830 | #endif |
| 1831 | goto donumset; |
| 1832 | case O_CONNECT: |
| 1833 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1834 | stab = arg[1].arg_ptr.arg_stab; |
| 1835 | else |
| 1836 | stab = stabent(str_get(st[1]),TRUE); |
| 1837 | #ifndef lint |
| 1838 | value = (double)do_connect(stab,arglast); |
| 1839 | #else |
| 1840 | (void)do_connect(stab,arglast); |
| 1841 | #endif |
| 1842 | goto donumset; |
| 1843 | case O_LISTEN: |
| 1844 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1845 | stab = arg[1].arg_ptr.arg_stab; |
| 1846 | else |
| 1847 | stab = stabent(str_get(st[1]),TRUE); |
| 1848 | #ifndef lint |
| 1849 | value = (double)do_listen(stab,arglast); |
| 1850 | #else |
| 1851 | (void)do_listen(stab,arglast); |
| 1852 | #endif |
| 1853 | goto donumset; |
| 1854 | case O_ACCEPT: |
| 1855 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1856 | stab = arg[1].arg_ptr.arg_stab; |
| 1857 | else |
| 1858 | stab = stabent(str_get(st[1]),TRUE); |
| 1859 | if ((arg[2].arg_type & A_MASK) == A_WORD) |
| 1860 | stab2 = arg[2].arg_ptr.arg_stab; |
| 1861 | else |
| 1862 | stab2 = stabent(str_get(st[2]),TRUE); |
| 1863 | do_accept(str,stab,stab2); |
| 1864 | STABSET(str); |
| 1865 | break; |
| 1866 | case O_GHBYNAME: |
| 1867 | if (maxarg < 1) |
| 1868 | goto say_undef; |
| 1869 | case O_GHBYADDR: |
| 1870 | case O_GHOSTENT: |
| 1871 | sp = do_ghent(optype, |
| 1872 | gimme,arglast); |
| 1873 | goto array_return; |
| 1874 | case O_GNBYNAME: |
| 1875 | if (maxarg < 1) |
| 1876 | goto say_undef; |
| 1877 | case O_GNBYADDR: |
| 1878 | case O_GNETENT: |
| 1879 | sp = do_gnent(optype, |
| 1880 | gimme,arglast); |
| 1881 | goto array_return; |
| 1882 | case O_GPBYNAME: |
| 1883 | if (maxarg < 1) |
| 1884 | goto say_undef; |
| 1885 | case O_GPBYNUMBER: |
| 1886 | case O_GPROTOENT: |
| 1887 | sp = do_gpent(optype, |
| 1888 | gimme,arglast); |
| 1889 | goto array_return; |
| 1890 | case O_GSBYNAME: |
| 1891 | if (maxarg < 1) |
| 1892 | goto say_undef; |
| 1893 | case O_GSBYPORT: |
| 1894 | case O_GSERVENT: |
| 1895 | sp = do_gsent(optype, |
| 1896 | gimme,arglast); |
| 1897 | goto array_return; |
| 1898 | case O_SHOSTENT: |
| 1899 | value = (double) sethostent((int)str_gnum(st[1])); |
| 1900 | goto donumset; |
| 1901 | case O_SNETENT: |
| 1902 | value = (double) setnetent((int)str_gnum(st[1])); |
| 1903 | goto donumset; |
| 1904 | case O_SPROTOENT: |
| 1905 | value = (double) setprotoent((int)str_gnum(st[1])); |
| 1906 | goto donumset; |
| 1907 | case O_SSERVENT: |
| 1908 | value = (double) setservent((int)str_gnum(st[1])); |
| 1909 | goto donumset; |
| 1910 | case O_EHOSTENT: |
| 1911 | value = (double) endhostent(); |
| 1912 | goto donumset; |
| 1913 | case O_ENETENT: |
| 1914 | value = (double) endnetent(); |
| 1915 | goto donumset; |
| 1916 | case O_EPROTOENT: |
| 1917 | value = (double) endprotoent(); |
| 1918 | goto donumset; |
| 1919 | case O_ESERVENT: |
| 1920 | value = (double) endservent(); |
| 1921 | goto donumset; |
| 1922 | case O_SSELECT: |
| 1923 | sp = do_select(gimme,arglast); |
| 1924 | goto array_return; |
| 1925 | case O_SOCKETPAIR: |
| 1926 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1927 | stab = arg[1].arg_ptr.arg_stab; |
| 1928 | else |
| 1929 | stab = stabent(str_get(st[1]),TRUE); |
| 1930 | if ((arg[2].arg_type & A_MASK) == A_WORD) |
| 1931 | stab2 = arg[2].arg_ptr.arg_stab; |
| 1932 | else |
| 1933 | stab2 = stabent(str_get(st[2]),TRUE); |
| 1934 | #ifndef lint |
| 1935 | value = (double)do_spair(stab,stab2,arglast); |
| 1936 | #else |
| 1937 | (void)do_spair(stab,stab2,arglast); |
| 1938 | #endif |
| 1939 | goto donumset; |
| 1940 | case O_SHUTDOWN: |
| 1941 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1942 | stab = arg[1].arg_ptr.arg_stab; |
| 1943 | else |
| 1944 | stab = stabent(str_get(st[1]),TRUE); |
| 1945 | #ifndef lint |
| 1946 | value = (double)do_shutdown(stab,arglast); |
| 1947 | #else |
| 1948 | (void)do_shutdown(stab,arglast); |
| 1949 | #endif |
| 1950 | goto donumset; |
| 1951 | case O_GSOCKOPT: |
| 1952 | case O_SSOCKOPT: |
| 1953 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1954 | stab = arg[1].arg_ptr.arg_stab; |
| 1955 | else |
| 1956 | stab = stabent(str_get(st[1]),TRUE); |
| 1957 | sp = do_sopt(optype,stab,arglast); |
| 1958 | goto array_return; |
| 1959 | case O_GETSOCKNAME: |
| 1960 | case O_GETPEERNAME: |
| 1961 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1962 | stab = arg[1].arg_ptr.arg_stab; |
| 1963 | else |
| 1964 | stab = stabent(str_get(st[1]),TRUE); |
| 1965 | sp = do_getsockname(optype,stab,arglast); |
| 1966 | goto array_return; |
| 1967 | |
| 1968 | #else /* SOCKET not defined */ |
| 1969 | case O_SOCKET: |
| 1970 | case O_BIND: |
| 1971 | case O_CONNECT: |
| 1972 | case O_LISTEN: |
| 1973 | case O_ACCEPT: |
| 1974 | case O_SSELECT: |
| 1975 | case O_SOCKETPAIR: |
| 1976 | case O_GHBYNAME: |
| 1977 | case O_GHBYADDR: |
| 1978 | case O_GHOSTENT: |
| 1979 | case O_GNBYNAME: |
| 1980 | case O_GNBYADDR: |
| 1981 | case O_GNETENT: |
| 1982 | case O_GPBYNAME: |
| 1983 | case O_GPBYNUMBER: |
| 1984 | case O_GPROTOENT: |
| 1985 | case O_GSBYNAME: |
| 1986 | case O_GSBYPORT: |
| 1987 | case O_GSERVENT: |
| 1988 | case O_SHOSTENT: |
| 1989 | case O_SNETENT: |
| 1990 | case O_SPROTOENT: |
| 1991 | case O_SSERVENT: |
| 1992 | case O_EHOSTENT: |
| 1993 | case O_ENETENT: |
| 1994 | case O_EPROTOENT: |
| 1995 | case O_ESERVENT: |
| 1996 | case O_SHUTDOWN: |
| 1997 | case O_GSOCKOPT: |
| 1998 | case O_SSOCKOPT: |
| 1999 | case O_GETSOCKNAME: |
| 2000 | case O_GETPEERNAME: |
| 2001 | badsock: |
| 2002 | fatal("Unsupported socket function"); |
| 2003 | #endif /* SOCKET */ |
| 2004 | case O_FILENO: |
| bf38876a |
2005 | if (maxarg < 1) |
| 2006 | goto say_undef; |
| a687059c |
2007 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 2008 | stab = arg[1].arg_ptr.arg_stab; |
| 2009 | else |
| 2010 | stab = stabent(str_get(st[1]),TRUE); |
| 2011 | if (!stab || !(stio = stab_io(stab)) || !(fp = stio->ifp)) |
| 2012 | goto say_undef; |
| 2013 | value = fileno(fp); |
| 2014 | goto donumset; |
| 2015 | case O_VEC: |
| 2016 | sp = do_vec(str == st[1], arg->arg_ptr.arg_str, arglast); |
| 2017 | goto array_return; |
| 2018 | case O_GPWNAM: |
| 2019 | case O_GPWUID: |
| 2020 | case O_GPWENT: |
| 2021 | sp = do_gpwent(optype, |
| 2022 | gimme,arglast); |
| 2023 | goto array_return; |
| 2024 | case O_SPWENT: |
| 2025 | value = (double) setpwent(); |
| 2026 | goto donumset; |
| 2027 | case O_EPWENT: |
| 2028 | value = (double) endpwent(); |
| 2029 | goto donumset; |
| 2030 | case O_GGRNAM: |
| 2031 | case O_GGRGID: |
| 2032 | case O_GGRENT: |
| 2033 | sp = do_ggrent(optype, |
| 2034 | gimme,arglast); |
| 2035 | goto array_return; |
| 2036 | case O_SGRENT: |
| 2037 | value = (double) setgrent(); |
| 2038 | goto donumset; |
| 2039 | case O_EGRENT: |
| 2040 | value = (double) endgrent(); |
| 2041 | goto donumset; |
| 2042 | case O_GETLOGIN: |
| 2043 | if (!(tmps = getlogin())) |
| 2044 | goto say_undef; |
| 2045 | str_set(str,tmps); |
| 2046 | break; |
| 2047 | case O_OPENDIR: |
| 2048 | case O_READDIR: |
| 2049 | case O_TELLDIR: |
| 2050 | case O_SEEKDIR: |
| 2051 | case O_REWINDDIR: |
| 2052 | case O_CLOSEDIR: |
| bf38876a |
2053 | if (maxarg < 1) |
| 2054 | goto say_undef; |
| a687059c |
2055 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 2056 | stab = arg[1].arg_ptr.arg_stab; |
| 2057 | else |
| 2058 | stab = stabent(str_get(st[1]),TRUE); |
| 2059 | sp = do_dirop(optype,stab,gimme,arglast); |
| 2060 | goto array_return; |
| 2061 | case O_SYSCALL: |
| 2062 | value = (double)do_syscall(arglast); |
| 2063 | goto donumset; |
| 378cc40b |
2064 | } |
| a687059c |
2065 | |
| 2066 | normal_return: |
| 2067 | st[1] = str; |
| 378cc40b |
2068 | #ifdef DEBUGGING |
| 2069 | if (debug) { |
| 2070 | dlevel--; |
| 2071 | if (debug & 8) |
| 2072 | deb("%s RETURNS \"%s\"\n",opname[optype],str_get(str)); |
| 2073 | } |
| 2074 | #endif |
| a687059c |
2075 | return arglast[0] + 1; |
| 378cc40b |
2076 | |
| 2077 | array_return: |
| 2078 | #ifdef DEBUGGING |
| 2079 | if (debug) { |
| 2080 | dlevel--; |
| 2081 | if (debug & 8) |
| a687059c |
2082 | deb("%s RETURNS ARRAY OF %d ARGS\n",opname[optype],sp - arglast[0]); |
| 378cc40b |
2083 | } |
| 2084 | #endif |
| a687059c |
2085 | return sp; |
| 2086 | |
| 2087 | say_yes: |
| 2088 | str = &str_yes; |
| 2089 | goto normal_return; |
| 2090 | |
| 2091 | say_no: |
| 2092 | str = &str_no; |
| 2093 | goto normal_return; |
| 2094 | |
| 2095 | say_undef: |
| 2096 | str = &str_undef; |
| 2097 | goto normal_return; |
| 2098 | |
| 2099 | say_zero: |
| 2100 | value = 0.0; |
| 2101 | /* FALL THROUGH */ |
| 378cc40b |
2102 | |
| 2103 | donumset: |
| 2104 | str_numset(str,value); |
| 2105 | STABSET(str); |
| a687059c |
2106 | st[1] = str; |
| 378cc40b |
2107 | #ifdef DEBUGGING |
| 2108 | if (debug) { |
| 2109 | dlevel--; |
| 2110 | if (debug & 8) |
| 2111 | deb("%s RETURNS \"%f\"\n",opname[optype],value); |
| 2112 | } |
| 2113 | #endif |
| a687059c |
2114 | return arglast[0] + 1; |
| 378cc40b |
2115 | } |
projects / p5sagit/p5-mst-13.2.git / blame