| Commit | Line | Data |
|---|
| afd9f252 |
1 | /* $Header: eval.c,v 3.0.1.4 90/02/28 17:36:59 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 $ |
| afd9f252 |
9 | * Revision 3.0.1.4 90/02/28 17:36:59 lwall |
| 10 | * patch9: added pipe function |
| 11 | * patch9: a return in scalar context wouldn't return array |
| 12 | * patch9: !~ now always returns scalar even in array context |
| 13 | * patch9: some machines can't cast float to long with high bit set |
| 14 | * patch9: piped opens returned undef in child |
| 15 | * patch9: @array in scalar context now returns length of array |
| 16 | * patch9: chdir; coredumped |
| 17 | * patch9: wait no longer ignores signals |
| 18 | * patch9: mkdir now handles odd versions of /bin/mkdir |
| 19 | * patch9: -l FILEHANDLE now disallowed |
| 20 | * |
| 663a0e37 |
21 | * Revision 3.0.1.3 89/12/21 20:03:05 lwall |
| 22 | * patch7: errno may now be a macro with an lvalue |
| 23 | * patch7: ANSI strerror() is now supported |
| 24 | * patch7: send() didn't allow a TO argument |
| 25 | * patch7: ord() now always returns positive even on signed char machines |
| 26 | * |
| 0d3e774c |
27 | * Revision 3.0.1.2 89/11/17 15:19:34 lwall |
| 663a0e37 |
28 | * patch5: constant numeric subscripts get lost inside ?: |
| 0d3e774c |
29 | * |
| bf38876a |
30 | * Revision 3.0.1.1 89/11/11 04:31:51 lwall |
| 31 | * patch2: mkdir and rmdir needed to quote argument when passed to shell |
| 32 | * patch2: mkdir and rmdir now return better error codes |
| 33 | * patch2: fileno, seekdir, rewinddir and closedir now disallow defaults |
| 34 | * |
| a687059c |
35 | * Revision 3.0 89/10/18 15:17:04 lwall |
| 36 | * 3.0 baseline |
| 378cc40b |
37 | * |
| 38 | */ |
| 39 | |
| 40 | #include "EXTERN.h" |
| 41 | #include "perl.h" |
| 42 | |
| 43 | #include <signal.h> |
| 378cc40b |
44 | |
| a687059c |
45 | #ifdef I_VFORK |
| 46 | # include <vfork.h> |
| 47 | #endif |
| 48 | |
| 378cc40b |
49 | #ifdef VOIDSIG |
| 50 | static void (*ihand)(); |
| 51 | static void (*qhand)(); |
| 52 | #else |
| 53 | static int (*ihand)(); |
| 54 | static int (*qhand)(); |
| 55 | #endif |
| 56 | |
| 57 | ARG *debarg; |
| 58 | STR str_args; |
| a687059c |
59 | static STAB *stab2; |
| 60 | static STIO *stio; |
| 61 | static struct lstring *lstr; |
| 62 | static char old_record_separator; |
| afd9f252 |
63 | extern int wantarray; |
| 378cc40b |
64 | |
| a687059c |
65 | double sin(), cos(), atan2(), pow(); |
| 66 | |
| 67 | char *getlogin(); |
| 68 | |
| a687059c |
69 | int |
| 70 | eval(arg,gimme,sp) |
| 378cc40b |
71 | register ARG *arg; |
| a687059c |
72 | int gimme; |
| 73 | register int sp; |
| 378cc40b |
74 | { |
| 75 | register STR *str; |
| 76 | register int anum; |
| 77 | register int optype; |
| a687059c |
78 | register STR **st; |
| 378cc40b |
79 | int maxarg; |
| 378cc40b |
80 | double value; |
| 378cc40b |
81 | register char *tmps; |
| 82 | char *tmps2; |
| 83 | int argflags; |
| 84 | int argtype; |
| 85 | union argptr argptr; |
| a687059c |
86 | int arglast[8]; /* highest sp for arg--valid only for non-O_LIST args */ |
| 378cc40b |
87 | unsigned long tmplong; |
| 88 | long when; |
| 89 | FILE *fp; |
| 90 | STR *tmpstr; |
| 91 | FCMD *form; |
| 92 | STAB *stab; |
| 93 | ARRAY *ary; |
| 94 | bool assigning = FALSE; |
| 95 | double exp(), log(), sqrt(), modf(); |
| 96 | char *crypt(), *getenv(); |
| a687059c |
97 | extern void grow_dlevel(); |
| 378cc40b |
98 | |
| 99 | if (!arg) |
| a687059c |
100 | goto say_undef; |
| 378cc40b |
101 | optype = arg->arg_type; |
| a687059c |
102 | maxarg = arg->arg_len; |
| 103 | arglast[0] = sp; |
| 104 | str = arg->arg_ptr.arg_str; |
| 105 | if (sp + maxarg > stack->ary_max) |
| 106 | astore(stack, sp + maxarg, Nullstr); |
| 107 | st = stack->ary_array; |
| 108 | |
| 378cc40b |
109 | #ifdef DEBUGGING |
| 110 | if (debug) { |
| 111 | if (debug & 8) { |
| 112 | deb("%s (%lx) %d args:\n",opname[optype],arg,maxarg); |
| 113 | } |
| 114 | debname[dlevel] = opname[optype][0]; |
| a687059c |
115 | debdelim[dlevel] = ':'; |
| 116 | if (++dlevel >= dlmax) |
| 117 | grow_dlevel(); |
| 378cc40b |
118 | } |
| 119 | #endif |
| 378cc40b |
120 | |
| a687059c |
121 | #include "evalargs.xc" |
| 122 | |
| 123 | st += arglast[0]; |
| 378cc40b |
124 | switch (optype) { |
| a687059c |
125 | case O_RCAT: |
| 126 | STABSET(str); |
| 127 | break; |
| 378cc40b |
128 | case O_ITEM: |
| a687059c |
129 | if (gimme == G_ARRAY) |
| 378cc40b |
130 | goto array_return; |
| a687059c |
131 | STR_SSET(str,st[1]); |
| 378cc40b |
132 | STABSET(str); |
| 133 | break; |
| 134 | case O_ITEM2: |
| a687059c |
135 | if (gimme == G_ARRAY) |
| 136 | goto array_return; |
| 137 | --anum; |
| 138 | STR_SSET(str,st[arglast[anum]-arglast[0]]); |
| 378cc40b |
139 | STABSET(str); |
| 140 | break; |
| 141 | case O_ITEM3: |
| a687059c |
142 | if (gimme == G_ARRAY) |
| 143 | goto array_return; |
| 144 | --anum; |
| 145 | STR_SSET(str,st[arglast[anum]-arglast[0]]); |
| 378cc40b |
146 | STABSET(str); |
| 147 | break; |
| 148 | case O_CONCAT: |
| a687059c |
149 | STR_SSET(str,st[1]); |
| 150 | str_scat(str,st[2]); |
| 378cc40b |
151 | STABSET(str); |
| 152 | break; |
| 153 | case O_REPEAT: |
| a687059c |
154 | STR_SSET(str,st[1]); |
| 155 | anum = (int)str_gnum(st[2]); |
| 378cc40b |
156 | if (anum >= 1) { |
| afd9f252 |
157 | tmpstr = Str_new(50, 0); |
| 378cc40b |
158 | str_sset(tmpstr,str); |
| afd9f252 |
159 | tmps = str_get(tmpstr); /* force to be string */ |
| 160 | STR_GROW(str, (anum * str->str_cur) + 1); |
| 161 | repeatcpy(str->str_ptr, tmps, tmpstr->str_cur, anum); |
| 162 | str->str_cur *= anum; str->str_ptr[str->str_cur] = '\0'; |
| 378cc40b |
163 | } |
| 164 | else |
| 165 | str_sset(str,&str_no); |
| 166 | STABSET(str); |
| 167 | break; |
| 168 | case O_MATCH: |
| a687059c |
169 | sp = do_match(str,arg, |
| 170 | gimme,arglast); |
| 171 | if (gimme == G_ARRAY) |
| 378cc40b |
172 | goto array_return; |
| 378cc40b |
173 | STABSET(str); |
| 174 | break; |
| 175 | case O_NMATCH: |
| a687059c |
176 | sp = do_match(str,arg, |
| afd9f252 |
177 | G_SCALAR,arglast); |
| a687059c |
178 | str_sset(str, str_true(str) ? &str_no : &str_yes); |
| 378cc40b |
179 | STABSET(str); |
| 180 | break; |
| 181 | case O_SUBST: |
| a687059c |
182 | sp = do_subst(str,arg,arglast[0]); |
| 183 | goto array_return; |
| 378cc40b |
184 | case O_NSUBST: |
| a687059c |
185 | sp = do_subst(str,arg,arglast[0]); |
| 378cc40b |
186 | str = arg->arg_ptr.arg_str; |
| a687059c |
187 | str_set(str, str_true(str) ? No : Yes); |
| 188 | goto array_return; |
| 378cc40b |
189 | case O_ASSIGN: |
| a687059c |
190 | if (arg[1].arg_flags & AF_ARYOK) { |
| 191 | if (arg->arg_len == 1) { |
| 192 | arg->arg_type = O_LOCAL; |
| a687059c |
193 | goto local; |
| 194 | } |
| 195 | else { |
| 196 | arg->arg_type = O_AASSIGN; |
| 197 | goto aassign; |
| 198 | } |
| 199 | } |
| 378cc40b |
200 | else { |
| a687059c |
201 | arg->arg_type = O_SASSIGN; |
| 202 | goto sassign; |
| 378cc40b |
203 | } |
| a687059c |
204 | case O_LOCAL: |
| 205 | local: |
| 206 | arglast[2] = arglast[1]; /* push a null array */ |
| 207 | /* FALL THROUGH */ |
| 208 | case O_AASSIGN: |
| 209 | aassign: |
| 210 | sp = do_assign(arg, |
| 211 | gimme,arglast); |
| 212 | goto array_return; |
| 213 | case O_SASSIGN: |
| 214 | sassign: |
| 215 | STR_SSET(str, st[2]); |
| 216 | STABSET(str); |
| 378cc40b |
217 | break; |
| 218 | case O_CHOP: |
| a687059c |
219 | st -= arglast[0]; |
| 378cc40b |
220 | str = arg->arg_ptr.arg_str; |
| a687059c |
221 | for (sp = arglast[0] + 1; sp <= arglast[1]; sp++) |
| 222 | do_chop(str,st[sp]); |
| 223 | st += arglast[0]; |
| 378cc40b |
224 | break; |
| a687059c |
225 | case O_DEFINED: |
| 226 | if (arg[1].arg_type & A_DONT) { |
| 227 | sp = do_defined(str,arg, |
| 228 | gimme,arglast); |
| 229 | goto array_return; |
| 230 | } |
| 231 | else if (str->str_pok || str->str_nok) |
| 232 | goto say_yes; |
| 233 | goto say_no; |
| 234 | case O_UNDEF: |
| 235 | if (arg[1].arg_type & A_DONT) { |
| 236 | sp = do_undef(str,arg, |
| 237 | gimme,arglast); |
| 238 | goto array_return; |
| 239 | } |
| 240 | else if (str != stab_val(defstab)) { |
| 241 | str->str_pok = str->str_nok = 0; |
| 242 | STABSET(str); |
| 243 | } |
| 244 | goto say_undef; |
| 378cc40b |
245 | case O_STUDY: |
| a687059c |
246 | sp = do_study(str,arg, |
| 247 | gimme,arglast); |
| 248 | goto array_return; |
| 249 | case O_POW: |
| 250 | value = str_gnum(st[1]); |
| 251 | value = pow(value,str_gnum(st[2])); |
| 378cc40b |
252 | goto donumset; |
| 253 | case O_MULTIPLY: |
| a687059c |
254 | value = str_gnum(st[1]); |
| 255 | value *= str_gnum(st[2]); |
| 378cc40b |
256 | goto donumset; |
| 257 | case O_DIVIDE: |
| a687059c |
258 | if ((value = str_gnum(st[2])) == 0.0) |
| 378cc40b |
259 | fatal("Illegal division by zero"); |
| a687059c |
260 | value = str_gnum(st[1]) / value; |
| 378cc40b |
261 | goto donumset; |
| 262 | case O_MODULO: |
| a687059c |
263 | tmplong = (long) str_gnum(st[2]); |
| 264 | if (tmplong == 0L) |
| 378cc40b |
265 | fatal("Illegal modulus zero"); |
| a687059c |
266 | when = (long)str_gnum(st[1]); |
| 267 | #ifndef lint |
| 268 | if (when >= 0) |
| 269 | value = (double)(when % tmplong); |
| 270 | else |
| 271 | value = (double)(tmplong - (-when % tmplong)); |
| 272 | #endif |
| 378cc40b |
273 | goto donumset; |
| 274 | case O_ADD: |
| a687059c |
275 | value = str_gnum(st[1]); |
| 276 | value += str_gnum(st[2]); |
| 378cc40b |
277 | goto donumset; |
| 278 | case O_SUBTRACT: |
| a687059c |
279 | value = str_gnum(st[1]); |
| 280 | value -= str_gnum(st[2]); |
| 378cc40b |
281 | goto donumset; |
| 282 | case O_LEFT_SHIFT: |
| a687059c |
283 | value = str_gnum(st[1]); |
| 284 | anum = (int)str_gnum(st[2]); |
| 285 | #ifndef lint |
| afd9f252 |
286 | value = (double)(((unsigned long)value) << anum); |
| a687059c |
287 | #endif |
| 378cc40b |
288 | goto donumset; |
| 289 | case O_RIGHT_SHIFT: |
| a687059c |
290 | value = str_gnum(st[1]); |
| 291 | anum = (int)str_gnum(st[2]); |
| 292 | #ifndef lint |
| afd9f252 |
293 | value = (double)(((unsigned long)value) >> anum); |
| a687059c |
294 | #endif |
| 378cc40b |
295 | goto donumset; |
| 296 | case O_LT: |
| a687059c |
297 | value = str_gnum(st[1]); |
| 298 | value = (value < str_gnum(st[2])) ? 1.0 : 0.0; |
| 378cc40b |
299 | goto donumset; |
| 300 | case O_GT: |
| a687059c |
301 | value = str_gnum(st[1]); |
| 302 | value = (value > str_gnum(st[2])) ? 1.0 : 0.0; |
| 378cc40b |
303 | goto donumset; |
| 304 | case O_LE: |
| a687059c |
305 | value = str_gnum(st[1]); |
| 306 | value = (value <= str_gnum(st[2])) ? 1.0 : 0.0; |
| 378cc40b |
307 | goto donumset; |
| 308 | case O_GE: |
| a687059c |
309 | value = str_gnum(st[1]); |
| 310 | value = (value >= str_gnum(st[2])) ? 1.0 : 0.0; |
| 378cc40b |
311 | goto donumset; |
| 312 | case O_EQ: |
| a687059c |
313 | if (dowarn) { |
| 314 | if ((!st[1]->str_nok && !looks_like_number(st[1])) || |
| 315 | (!st[2]->str_nok && !looks_like_number(st[2])) ) |
| 316 | warn("Possible use of == on string value"); |
| 317 | } |
| 318 | value = str_gnum(st[1]); |
| 319 | value = (value == str_gnum(st[2])) ? 1.0 : 0.0; |
| 378cc40b |
320 | goto donumset; |
| 321 | case O_NE: |
| a687059c |
322 | value = str_gnum(st[1]); |
| 323 | value = (value != str_gnum(st[2])) ? 1.0 : 0.0; |
| 378cc40b |
324 | goto donumset; |
| 325 | case O_BIT_AND: |
| a687059c |
326 | if (!sawvec || st[1]->str_nok || st[2]->str_nok) { |
| 327 | value = str_gnum(st[1]); |
| 328 | #ifndef lint |
| afd9f252 |
329 | value = (double)(((unsigned long)value) & |
| 330 | (unsigned long)str_gnum(st[2])); |
| a687059c |
331 | #endif |
| 332 | goto donumset; |
| 333 | } |
| 334 | else |
| 335 | do_vop(optype,str,st[1],st[2]); |
| 336 | break; |
| 378cc40b |
337 | case O_XOR: |
| a687059c |
338 | if (!sawvec || st[1]->str_nok || st[2]->str_nok) { |
| 339 | value = str_gnum(st[1]); |
| 340 | #ifndef lint |
| afd9f252 |
341 | value = (double)(((unsigned long)value) ^ |
| 342 | (unsigned long)str_gnum(st[2])); |
| a687059c |
343 | #endif |
| 344 | goto donumset; |
| 345 | } |
| 346 | else |
| 347 | do_vop(optype,str,st[1],st[2]); |
| 348 | break; |
| 378cc40b |
349 | case O_BIT_OR: |
| a687059c |
350 | if (!sawvec || st[1]->str_nok || st[2]->str_nok) { |
| 351 | value = str_gnum(st[1]); |
| 352 | #ifndef lint |
| afd9f252 |
353 | value = (double)(((unsigned long)value) | |
| 354 | (unsigned long)str_gnum(st[2])); |
| a687059c |
355 | #endif |
| 356 | goto donumset; |
| 357 | } |
| 358 | else |
| 359 | do_vop(optype,str,st[1],st[2]); |
| 360 | break; |
| 361 | /* use register in evaluating str_true() */ |
| 378cc40b |
362 | case O_AND: |
| a687059c |
363 | if (str_true(st[1])) { |
| 378cc40b |
364 | anum = 2; |
| 365 | optype = O_ITEM2; |
| 366 | argflags = arg[anum].arg_flags; |
| a687059c |
367 | if (gimme == G_ARRAY) |
| 368 | argflags |= AF_ARYOK; |
| 369 | argtype = arg[anum].arg_type & A_MASK; |
| 378cc40b |
370 | argptr = arg[anum].arg_ptr; |
| 371 | maxarg = anum = 1; |
| a687059c |
372 | sp = arglast[0]; |
| 373 | st -= sp; |
| 378cc40b |
374 | goto re_eval; |
| 375 | } |
| 376 | else { |
| 377 | if (assigning) { |
| a687059c |
378 | str_sset(str, st[1]); |
| 378cc40b |
379 | STABSET(str); |
| 380 | } |
| 381 | else |
| a687059c |
382 | str = st[1]; |
| 378cc40b |
383 | break; |
| 384 | } |
| 385 | case O_OR: |
| a687059c |
386 | if (str_true(st[1])) { |
| 378cc40b |
387 | if (assigning) { |
| a687059c |
388 | str_sset(str, st[1]); |
| 378cc40b |
389 | STABSET(str); |
| 390 | } |
| 391 | else |
| a687059c |
392 | str = st[1]; |
| 378cc40b |
393 | break; |
| 394 | } |
| 395 | else { |
| 396 | anum = 2; |
| 397 | optype = O_ITEM2; |
| 398 | argflags = arg[anum].arg_flags; |
| a687059c |
399 | if (gimme == G_ARRAY) |
| 400 | argflags |= AF_ARYOK; |
| 401 | argtype = arg[anum].arg_type & A_MASK; |
| 378cc40b |
402 | argptr = arg[anum].arg_ptr; |
| 403 | maxarg = anum = 1; |
| a687059c |
404 | sp = arglast[0]; |
| 405 | st -= sp; |
| 378cc40b |
406 | goto re_eval; |
| 407 | } |
| 408 | case O_COND_EXPR: |
| a687059c |
409 | anum = (str_true(st[1]) ? 2 : 3); |
| 378cc40b |
410 | optype = (anum == 2 ? O_ITEM2 : O_ITEM3); |
| 411 | argflags = arg[anum].arg_flags; |
| a687059c |
412 | if (gimme == G_ARRAY) |
| 413 | argflags |= AF_ARYOK; |
| 414 | argtype = arg[anum].arg_type & A_MASK; |
| 378cc40b |
415 | argptr = arg[anum].arg_ptr; |
| 416 | maxarg = anum = 1; |
| a687059c |
417 | sp = arglast[0]; |
| 418 | st -= sp; |
| 378cc40b |
419 | goto re_eval; |
| 420 | case O_COMMA: |
| a687059c |
421 | if (gimme == G_ARRAY) |
| 422 | goto array_return; |
| 423 | str = st[2]; |
| 378cc40b |
424 | break; |
| 425 | case O_NEGATE: |
| a687059c |
426 | value = -str_gnum(st[1]); |
| 378cc40b |
427 | goto donumset; |
| 428 | case O_NOT: |
| a687059c |
429 | value = (double) !str_true(st[1]); |
| 378cc40b |
430 | goto donumset; |
| 431 | case O_COMPLEMENT: |
| a687059c |
432 | #ifndef lint |
| afd9f252 |
433 | value = (double) ~(unsigned long)str_gnum(st[1]); |
| a687059c |
434 | #endif |
| 378cc40b |
435 | goto donumset; |
| 436 | case O_SELECT: |
| a687059c |
437 | tmps = stab_name(defoutstab); |
| 438 | if (maxarg > 0) { |
| 439 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 440 | defoutstab = arg[1].arg_ptr.arg_stab; |
| 441 | else |
| 442 | defoutstab = stabent(str_get(st[1]),TRUE); |
| 443 | if (!stab_io(defoutstab)) |
| 444 | stab_io(defoutstab) = stio_new(); |
| 445 | curoutstab = defoutstab; |
| 446 | } |
| 447 | str_set(str, tmps); |
| 378cc40b |
448 | STABSET(str); |
| 449 | break; |
| 450 | case O_WRITE: |
| 451 | if (maxarg == 0) |
| 452 | stab = defoutstab; |
| a687059c |
453 | else if ((arg[1].arg_type & A_MASK) == A_WORD) { |
| 454 | if (!(stab = arg[1].arg_ptr.arg_stab)) |
| 455 | stab = defoutstab; |
| 456 | } |
| 378cc40b |
457 | else |
| a687059c |
458 | stab = stabent(str_get(st[1]),TRUE); |
| 459 | if (!stab_io(stab)) { |
| 378cc40b |
460 | str_set(str, No); |
| 461 | STABSET(str); |
| 462 | break; |
| 463 | } |
| 464 | curoutstab = stab; |
| a687059c |
465 | fp = stab_io(stab)->ofp; |
| 378cc40b |
466 | debarg = arg; |
| a687059c |
467 | if (stab_io(stab)->fmt_stab) |
| 468 | form = stab_form(stab_io(stab)->fmt_stab); |
| 378cc40b |
469 | else |
| a687059c |
470 | form = stab_form(stab); |
| 378cc40b |
471 | if (!form || !fp) { |
| a687059c |
472 | if (dowarn) { |
| 473 | if (form) |
| 474 | warn("No format for filehandle"); |
| 475 | else { |
| 476 | if (stab_io(stab)->ifp) |
| 477 | warn("Filehandle only opened for input"); |
| 478 | else |
| 479 | warn("Write on closed filehandle"); |
| 480 | } |
| 481 | } |
| 378cc40b |
482 | str_set(str, No); |
| 483 | STABSET(str); |
| 484 | break; |
| 485 | } |
| a687059c |
486 | format(&outrec,form,sp); |
| 487 | do_write(&outrec,stab_io(stab),sp); |
| 488 | if (stab_io(stab)->flags & IOF_FLUSH) |
| 489 | (void)fflush(fp); |
| 378cc40b |
490 | str_set(str, Yes); |
| 491 | STABSET(str); |
| 492 | break; |
| a687059c |
493 | case O_DBMOPEN: |
| 494 | #ifdef SOME_DBM |
| 495 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 496 | stab = arg[1].arg_ptr.arg_stab; |
| 497 | else |
| 498 | stab = stabent(str_get(st[1]),TRUE); |
| 499 | anum = (int)str_gnum(st[3]); |
| 500 | value = (double)hdbmopen(stab_hash(stab),str_get(st[2]),anum); |
| 501 | goto donumset; |
| 502 | #else |
| 503 | fatal("No dbm or ndbm on this machine"); |
| 504 | #endif |
| 505 | case O_DBMCLOSE: |
| 506 | #ifdef SOME_DBM |
| 507 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 508 | stab = arg[1].arg_ptr.arg_stab; |
| 509 | else |
| 510 | stab = stabent(str_get(st[1]),TRUE); |
| 511 | hdbmclose(stab_hash(stab)); |
| 512 | goto say_yes; |
| 513 | #else |
| 514 | fatal("No dbm or ndbm on this machine"); |
| 515 | #endif |
| 378cc40b |
516 | case O_OPEN: |
| a687059c |
517 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 378cc40b |
518 | stab = arg[1].arg_ptr.arg_stab; |
| 519 | else |
| a687059c |
520 | stab = stabent(str_get(st[1]),TRUE); |
| afd9f252 |
521 | tmps = str_get(st[2]); |
| 522 | if (do_open(stab,tmps,st[2]->str_cur)) { |
| 378cc40b |
523 | value = (double)forkprocess; |
| a687059c |
524 | stab_io(stab)->lines = 0; |
| 378cc40b |
525 | goto donumset; |
| 526 | } |
| afd9f252 |
527 | else if (forkprocess == 0) /* we are a new child */ |
| 528 | goto say_zero; |
| 378cc40b |
529 | else |
| a687059c |
530 | goto say_undef; |
| 378cc40b |
531 | break; |
| 532 | case O_TRANS: |
| 533 | value = (double) do_trans(str,arg); |
| 534 | str = arg->arg_ptr.arg_str; |
| 535 | goto donumset; |
| 536 | case O_NTRANS: |
| 537 | str_set(arg->arg_ptr.arg_str, do_trans(str,arg) == 0 ? Yes : No); |
| 538 | str = arg->arg_ptr.arg_str; |
| 539 | break; |
| 540 | case O_CLOSE: |
| a687059c |
541 | if (maxarg == 0) |
| 542 | stab = defoutstab; |
| 543 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 378cc40b |
544 | stab = arg[1].arg_ptr.arg_stab; |
| 545 | else |
| a687059c |
546 | stab = stabent(str_get(st[1]),TRUE); |
| 378cc40b |
547 | str_set(str, do_close(stab,TRUE) ? Yes : No ); |
| 548 | STABSET(str); |
| 549 | break; |
| 550 | case O_EACH: |
| a687059c |
551 | sp = do_each(str,stab_hash(arg[1].arg_ptr.arg_stab), |
| 552 | gimme,arglast); |
| 553 | goto array_return; |
| 378cc40b |
554 | case O_VALUES: |
| 555 | case O_KEYS: |
| a687059c |
556 | sp = do_kv(str,stab_hash(arg[1].arg_ptr.arg_stab), optype, |
| 557 | gimme,arglast); |
| 558 | goto array_return; |
| 559 | case O_LARRAY: |
| 560 | str->str_nok = str->str_pok = 0; |
| 561 | str->str_u.str_stab = arg[1].arg_ptr.arg_stab; |
| 562 | str->str_state = SS_ARY; |
| 563 | break; |
| 378cc40b |
564 | case O_ARRAY: |
| a687059c |
565 | ary = stab_array(arg[1].arg_ptr.arg_stab); |
| 566 | maxarg = ary->ary_fill + 1; |
| 567 | if (gimme == G_ARRAY) { /* array wanted */ |
| 568 | sp = arglast[0]; |
| 569 | st -= sp; |
| 570 | if (maxarg > 0 && sp + maxarg > stack->ary_max) { |
| 571 | astore(stack,sp + maxarg, Nullstr); |
| 572 | st = stack->ary_array; |
| 378cc40b |
573 | } |
| a687059c |
574 | Copy(ary->ary_array, &st[sp+1], maxarg, STR*); |
| 575 | sp += maxarg; |
| 576 | goto array_return; |
| 378cc40b |
577 | } |
| afd9f252 |
578 | else { |
| 579 | value = (double)maxarg; |
| 580 | goto donumset; |
| 581 | } |
| a687059c |
582 | case O_AELEM: |
| 0d3e774c |
583 | anum = ((int)str_gnum(st[2])) - arybase; |
| 584 | str = afetch(stab_array(arg[1].arg_ptr.arg_stab),anum,FALSE); |
| 378cc40b |
585 | if (!str) |
| a687059c |
586 | goto say_undef; |
| 378cc40b |
587 | break; |
| 588 | case O_DELETE: |
| a687059c |
589 | tmpstab = arg[1].arg_ptr.arg_stab; |
| 590 | tmps = str_get(st[2]); |
| 591 | str = hdelete(stab_hash(tmpstab),tmps,st[2]->str_cur); |
| 592 | if (tmpstab == envstab) |
| 593 | setenv(tmps,Nullch); |
| 378cc40b |
594 | if (!str) |
| a687059c |
595 | goto say_undef; |
| 596 | break; |
| 597 | case O_LHASH: |
| 598 | str->str_nok = str->str_pok = 0; |
| 599 | str->str_u.str_stab = arg[1].arg_ptr.arg_stab; |
| 600 | str->str_state = SS_HASH; |
| 378cc40b |
601 | break; |
| 602 | case O_HASH: |
| a687059c |
603 | if (gimme == G_ARRAY) { /* array wanted */ |
| 604 | sp = do_kv(str,stab_hash(arg[1].arg_ptr.arg_stab), optype, |
| 605 | gimme,arglast); |
| 606 | goto array_return; |
| 607 | } |
| 608 | else { |
| 609 | tmpstab = arg[1].arg_ptr.arg_stab; |
| 610 | sprintf(buf,"%d/%d",stab_hash(tmpstab)->tbl_fill, |
| 611 | stab_hash(tmpstab)->tbl_max+1); |
| 612 | str_set(str,buf); |
| 613 | } |
| 614 | break; |
| 615 | case O_HELEM: |
| 616 | tmpstab = arg[1].arg_ptr.arg_stab; |
| 617 | tmps = str_get(st[2]); |
| 618 | str = hfetch(stab_hash(tmpstab),tmps,st[2]->str_cur,FALSE); |
| 378cc40b |
619 | if (!str) |
| a687059c |
620 | goto say_undef; |
| 378cc40b |
621 | break; |
| a687059c |
622 | case O_LAELEM: |
| 623 | anum = ((int)str_gnum(st[2])) - arybase; |
| 624 | str = afetch(stab_array(arg[1].arg_ptr.arg_stab),anum,TRUE); |
| 625 | if (!str) |
| 626 | fatal("Assignment to non-creatable value, subscript %d",anum); |
| 378cc40b |
627 | break; |
| a687059c |
628 | case O_LHELEM: |
| 629 | tmpstab = arg[1].arg_ptr.arg_stab; |
| 630 | tmps = str_get(st[2]); |
| 631 | anum = st[2]->str_cur; |
| 632 | str = hfetch(stab_hash(tmpstab),tmps,anum,TRUE); |
| 633 | if (!str) |
| 634 | fatal("Assignment to non-creatable value, subscript \"%s\"",tmps); |
| 635 | if (tmpstab == envstab) /* heavy wizardry going on here */ |
| 636 | str_magic(str, tmpstab, 'E', tmps, anum); /* str is now magic */ |
| 378cc40b |
637 | /* he threw the brick up into the air */ |
| a687059c |
638 | else if (tmpstab == sigstab) |
| 639 | str_magic(str, tmpstab, 'S', tmps, anum); |
| 640 | #ifdef SOME_DBM |
| 641 | else if (stab_hash(tmpstab)->tbl_dbm) |
| 642 | str_magic(str, tmpstab, 'D', tmps, anum); |
| 643 | #endif |
| 378cc40b |
644 | break; |
| a687059c |
645 | case O_ASLICE: |
| 646 | anum = TRUE; |
| 647 | argtype = FALSE; |
| 648 | goto do_slice_already; |
| 649 | case O_HSLICE: |
| 650 | anum = FALSE; |
| 651 | argtype = FALSE; |
| 652 | goto do_slice_already; |
| 653 | case O_LASLICE: |
| 654 | anum = TRUE; |
| 655 | argtype = TRUE; |
| 656 | goto do_slice_already; |
| 657 | case O_LHSLICE: |
| 658 | anum = FALSE; |
| 659 | argtype = TRUE; |
| 660 | do_slice_already: |
| 661 | sp = do_slice(arg[1].arg_ptr.arg_stab,anum,argtype, |
| 662 | gimme,arglast); |
| 663 | goto array_return; |
| 378cc40b |
664 | case O_PUSH: |
| a687059c |
665 | if (arglast[2] - arglast[1] != 1) |
| 666 | str = do_push(stab_array(arg[1].arg_ptr.arg_stab),arglast); |
| 378cc40b |
667 | else { |
| a687059c |
668 | str = Str_new(51,0); /* must copy the STR */ |
| 669 | str_sset(str,st[2]); |
| 670 | (void)apush(stab_array(arg[1].arg_ptr.arg_stab),str); |
| 378cc40b |
671 | } |
| 672 | break; |
| 673 | case O_POP: |
| a687059c |
674 | str = apop(ary = stab_array(arg[1].arg_ptr.arg_stab)); |
| 675 | goto staticalization; |
| 378cc40b |
676 | case O_SHIFT: |
| a687059c |
677 | str = ashift(ary = stab_array(arg[1].arg_ptr.arg_stab)); |
| 678 | staticalization: |
| 679 | if (!str) |
| 680 | goto say_undef; |
| 681 | if (ary->ary_flags & ARF_REAL) |
| 682 | (void)str_2static(str); |
| 378cc40b |
683 | break; |
| a687059c |
684 | case O_UNPACK: |
| 685 | sp = do_unpack(str,gimme,arglast); |
| 686 | goto array_return; |
| 378cc40b |
687 | case O_SPLIT: |
| a687059c |
688 | value = str_gnum(st[3]); |
| 689 | sp = do_split(str, arg[2].arg_ptr.arg_spat, (int)value, |
| 690 | gimme,arglast); |
| 691 | goto array_return; |
| 378cc40b |
692 | case O_LENGTH: |
| a687059c |
693 | if (maxarg < 1) |
| 694 | value = (double)str_len(stab_val(defstab)); |
| 695 | else |
| 696 | value = (double)str_len(st[1]); |
| 378cc40b |
697 | goto donumset; |
| 698 | case O_SPRINTF: |
| a687059c |
699 | do_sprintf(str, sp-arglast[0], st+1); |
| 378cc40b |
700 | break; |
| 701 | case O_SUBSTR: |
| a687059c |
702 | anum = ((int)str_gnum(st[2])) - arybase; /* anum=where to start*/ |
| 703 | tmps = str_get(st[1]); /* force conversion to string */ |
| 704 | if (argtype = (str == st[1])) |
| 705 | str = arg->arg_ptr.arg_str; |
| 706 | if (anum < 0) |
| 707 | anum += st[1]->str_cur + arybase; |
| 708 | if (anum < 0 || anum > st[1]->str_cur) |
| 709 | str_nset(str,"",0); |
| 710 | else { |
| 711 | optype = (int)str_gnum(st[3]); |
| 712 | if (optype < 0) |
| 713 | optype = 0; |
| 714 | tmps += anum; |
| 715 | anum = st[1]->str_cur - anum; /* anum=how many bytes left*/ |
| 716 | if (anum > optype) |
| 717 | anum = optype; |
| 378cc40b |
718 | str_nset(str, tmps, anum); |
| a687059c |
719 | if (argtype) { /* it's an lvalue! */ |
| 720 | lstr = (struct lstring*)str; |
| 721 | str->str_magic = st[1]; |
| 722 | st[1]->str_rare = 's'; |
| 723 | lstr->lstr_offset = tmps - str_get(st[1]); |
| 724 | lstr->lstr_len = anum; |
| 725 | } |
| 726 | } |
| 727 | break; |
| 728 | case O_PACK: |
| 729 | (void)do_pack(str,arglast); |
| 378cc40b |
730 | break; |
| a687059c |
731 | case O_GREP: |
| 732 | sp = do_grep(arg,str,gimme,arglast); |
| 733 | goto array_return; |
| 378cc40b |
734 | case O_JOIN: |
| a687059c |
735 | do_join(str,arglast); |
| 378cc40b |
736 | break; |
| 737 | case O_SLT: |
| a687059c |
738 | tmps = str_get(st[1]); |
| 739 | value = (double) (str_cmp(st[1],st[2]) < 0); |
| 378cc40b |
740 | goto donumset; |
| 741 | case O_SGT: |
| a687059c |
742 | tmps = str_get(st[1]); |
| 743 | value = (double) (str_cmp(st[1],st[2]) > 0); |
| 378cc40b |
744 | goto donumset; |
| 745 | case O_SLE: |
| a687059c |
746 | tmps = str_get(st[1]); |
| 747 | value = (double) (str_cmp(st[1],st[2]) <= 0); |
| 378cc40b |
748 | goto donumset; |
| 749 | case O_SGE: |
| a687059c |
750 | tmps = str_get(st[1]); |
| 751 | value = (double) (str_cmp(st[1],st[2]) >= 0); |
| 378cc40b |
752 | goto donumset; |
| 753 | case O_SEQ: |
| a687059c |
754 | tmps = str_get(st[1]); |
| 755 | value = (double) str_eq(st[1],st[2]); |
| 378cc40b |
756 | goto donumset; |
| 757 | case O_SNE: |
| a687059c |
758 | tmps = str_get(st[1]); |
| 759 | value = (double) !str_eq(st[1],st[2]); |
| 378cc40b |
760 | goto donumset; |
| 761 | case O_SUBR: |
| a687059c |
762 | sp = do_subr(arg,gimme,arglast); |
| 763 | st = stack->ary_array + arglast[0]; /* maybe realloced */ |
| 764 | goto array_return; |
| 765 | case O_DBSUBR: |
| 766 | sp = do_dbsubr(arg,gimme,arglast); |
| 767 | st = stack->ary_array + arglast[0]; /* maybe realloced */ |
| 768 | goto array_return; |
| 378cc40b |
769 | case O_SORT: |
| a687059c |
770 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 771 | stab = arg[1].arg_ptr.arg_stab; |
| 772 | else |
| 773 | stab = stabent(str_get(st[1]),TRUE); |
| 774 | if (!stab) |
| 378cc40b |
775 | stab = defoutstab; |
| a687059c |
776 | sp = do_sort(str,stab, |
| 777 | gimme,arglast); |
| 778 | goto array_return; |
| 779 | case O_REVERSE: |
| 780 | sp = do_reverse(str, |
| 781 | gimme,arglast); |
| 782 | goto array_return; |
| 783 | case O_WARN: |
| 784 | if (arglast[2] - arglast[1] != 1) { |
| 785 | do_join(str,arglast); |
| 786 | tmps = str_get(st[1]); |
| 787 | } |
| 378cc40b |
788 | else { |
| a687059c |
789 | str = st[2]; |
| 790 | tmps = str_get(st[2]); |
| 378cc40b |
791 | } |
| a687059c |
792 | if (!tmps || !*tmps) |
| 793 | tmps = "Warning: something's wrong"; |
| 794 | warn("%s",tmps); |
| 795 | goto say_yes; |
| 796 | case O_DIE: |
| 797 | if (arglast[2] - arglast[1] != 1) { |
| 798 | do_join(str,arglast); |
| 799 | tmps = str_get(st[1]); |
| 378cc40b |
800 | } |
| a687059c |
801 | else { |
| 802 | str = st[2]; |
| 803 | tmps = str_get(st[2]); |
| 804 | } |
| 805 | if (!tmps || !*tmps) |
| 806 | exit(1); |
| 807 | fatal("%s",tmps); |
| 808 | goto say_zero; |
| 378cc40b |
809 | case O_PRTF: |
| 810 | case O_PRINT: |
| a687059c |
811 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 812 | stab = arg[1].arg_ptr.arg_stab; |
| 813 | else |
| 814 | stab = stabent(str_get(st[1]),TRUE); |
| 815 | if (!stab) |
| 378cc40b |
816 | stab = defoutstab; |
| a687059c |
817 | if (!stab_io(stab)) { |
| 818 | if (dowarn) |
| 819 | warn("Filehandle never opened"); |
| 820 | goto say_zero; |
| 821 | } |
| 822 | if (!(fp = stab_io(stab)->ofp)) { |
| 823 | if (dowarn) { |
| 824 | if (stab_io(stab)->ifp) |
| 825 | warn("Filehandle opened only for input"); |
| 826 | else |
| 827 | warn("Print on closed filehandle"); |
| 828 | } |
| 829 | goto say_zero; |
| 378cc40b |
830 | } |
| 378cc40b |
831 | else { |
| a687059c |
832 | if (optype == O_PRTF || arglast[2] - arglast[1] != 1) |
| 833 | value = (double)do_aprint(arg,fp,arglast); |
| 378cc40b |
834 | else { |
| a687059c |
835 | value = (double)do_print(st[2],fp); |
| 836 | if (orslen && optype == O_PRINT) |
| 837 | if (fwrite(ors, 1, orslen, fp) == 0) |
| 838 | goto say_zero; |
| 378cc40b |
839 | } |
| a687059c |
840 | if (stab_io(stab)->flags & IOF_FLUSH) |
| 841 | if (fflush(fp) == EOF) |
| 842 | goto say_zero; |
| 378cc40b |
843 | } |
| 844 | goto donumset; |
| 845 | case O_CHDIR: |
| a687059c |
846 | if (maxarg < 1) |
| afd9f252 |
847 | tmps = Nullch; |
| a687059c |
848 | else |
| 849 | tmps = str_get(st[1]); |
| 850 | if (!tmps || !*tmps) { |
| 851 | tmpstr = hfetch(stab_hash(envstab),"HOME",4,FALSE); |
| 852 | if (tmpstr) |
| 853 | tmps = str_get(tmpstr); |
| 854 | } |
| 855 | if (!tmps || !*tmps) { |
| 856 | tmpstr = hfetch(stab_hash(envstab),"LOGDIR",6,FALSE); |
| 857 | if (tmpstr) |
| 858 | tmps = str_get(tmpstr); |
| 859 | } |
| 860 | #ifdef TAINT |
| 861 | taintproper("Insecure dependency in chdir"); |
| 862 | #endif |
| 378cc40b |
863 | value = (double)(chdir(tmps) >= 0); |
| 864 | goto donumset; |
| 378cc40b |
865 | case O_EXIT: |
| a687059c |
866 | if (maxarg < 1) |
| 867 | anum = 0; |
| 868 | else |
| 869 | anum = (int)str_gnum(st[1]); |
| 870 | exit(anum); |
| 871 | goto say_zero; |
| 378cc40b |
872 | case O_RESET: |
| a687059c |
873 | if (maxarg < 1) |
| 874 | tmps = ""; |
| 875 | else |
| 876 | tmps = str_get(st[1]); |
| 877 | str_reset(tmps,arg[2].arg_ptr.arg_hash); |
| 378cc40b |
878 | value = 1.0; |
| 879 | goto donumset; |
| 880 | case O_LIST: |
| a687059c |
881 | if (gimme == G_ARRAY) |
| 882 | goto array_return; |
| 378cc40b |
883 | if (maxarg > 0) |
| a687059c |
884 | str = st[sp - arglast[0]]; /* unwanted list, return last item */ |
| 378cc40b |
885 | else |
| a687059c |
886 | str = &str_undef; |
| 378cc40b |
887 | break; |
| 888 | case O_EOF: |
| 889 | if (maxarg <= 0) |
| 890 | stab = last_in_stab; |
| a687059c |
891 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 378cc40b |
892 | stab = arg[1].arg_ptr.arg_stab; |
| 893 | else |
| a687059c |
894 | stab = stabent(str_get(st[1]),TRUE); |
| 378cc40b |
895 | str_set(str, do_eof(stab) ? Yes : No); |
| 896 | STABSET(str); |
| 897 | break; |
| a687059c |
898 | case O_GETC: |
| 378cc40b |
899 | if (maxarg <= 0) |
| a687059c |
900 | stab = stdinstab; |
| 901 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 378cc40b |
902 | stab = arg[1].arg_ptr.arg_stab; |
| 903 | else |
| a687059c |
904 | stab = stabent(str_get(st[1]),TRUE); |
| 905 | if (do_eof(stab)) /* make sure we have fp with something */ |
| 906 | str_set(str, No); |
| 907 | else { |
| 908 | #ifdef TAINT |
| 909 | tainted = 1; |
| 910 | #endif |
| 911 | str_set(str," "); |
| 912 | *str->str_ptr = getc(stab_io(stab)->ifp); /* should never be EOF */ |
| 913 | } |
| 914 | STABSET(str); |
| 915 | break; |
| 916 | case O_TELL: |
| 917 | if (maxarg <= 0) |
| 918 | stab = last_in_stab; |
| 919 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 920 | stab = arg[1].arg_ptr.arg_stab; |
| 921 | else |
| 922 | stab = stabent(str_get(st[1]),TRUE); |
| 923 | #ifndef lint |
| 924 | value = (double)do_tell(stab); |
| 925 | #else |
| 926 | (void)do_tell(stab); |
| 927 | #endif |
| 928 | goto donumset; |
| 929 | case O_RECV: |
| 930 | case O_READ: |
| 931 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 932 | stab = arg[1].arg_ptr.arg_stab; |
| 933 | else |
| 934 | stab = stabent(str_get(st[1]),TRUE); |
| 935 | tmps = str_get(st[2]); |
| 936 | anum = (int)str_gnum(st[3]); |
| 937 | STR_GROW(st[2], anum+1), (tmps = str_get(st[2])); /* sneaky */ |
| 938 | errno = 0; |
| 939 | if (!stab_io(stab) || !stab_io(stab)->ifp) |
| 940 | goto say_zero; |
| 941 | #ifdef SOCKET |
| 942 | else if (optype == O_RECV) { |
| 943 | argtype = sizeof buf; |
| 944 | optype = (int)str_gnum(st[4]); |
| 945 | anum = recvfrom(fileno(stab_io(stab)->ifp), tmps, anum, optype, |
| 946 | buf, &argtype); |
| 947 | if (anum >= 0) { |
| 948 | st[2]->str_cur = anum; |
| 949 | st[2]->str_ptr[anum] = '\0'; |
| 950 | str_nset(str,buf,argtype); |
| 951 | } |
| 952 | else |
| 953 | str_sset(str,&str_undef); |
| 954 | break; |
| 955 | } |
| 956 | else if (stab_io(stab)->type == 's') { |
| 957 | argtype = sizeof buf; |
| 958 | anum = recvfrom(fileno(stab_io(stab)->ifp), tmps, anum, 0, |
| 959 | buf, &argtype); |
| 960 | } |
| 961 | #else |
| 962 | else if (optype == O_RECV) |
| 963 | goto badsock; |
| 964 | #endif |
| 965 | else |
| 966 | anum = fread(tmps, 1, anum, stab_io(stab)->ifp); |
| 967 | if (anum < 0) |
| 968 | goto say_undef; |
| 969 | st[2]->str_cur = anum; |
| 970 | st[2]->str_ptr[anum] = '\0'; |
| 971 | value = (double)anum; |
| 972 | goto donumset; |
| 973 | case O_SEND: |
| 974 | #ifdef SOCKET |
| 975 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 976 | stab = arg[1].arg_ptr.arg_stab; |
| 977 | else |
| 978 | stab = stabent(str_get(st[1]),TRUE); |
| 979 | tmps = str_get(st[2]); |
| 980 | anum = (int)str_gnum(st[3]); |
| 981 | optype = sp - arglast[0]; |
| 982 | errno = 0; |
| 983 | if (optype > 4) |
| 984 | warn("Too many args on send"); |
| 663a0e37 |
985 | stio = stab_io(stab); |
| 986 | if (!stio || !stio->ifp) { |
| 987 | anum = -1; |
| 988 | if (dowarn) |
| 989 | warn("Send on closed socket"); |
| 990 | } |
| 991 | else if (optype >= 4) { |
| a687059c |
992 | tmps2 = str_get(st[4]); |
| 993 | anum = sendto(fileno(stab_io(stab)->ifp), tmps, st[2]->str_cur, |
| 994 | anum, tmps2, st[4]->str_cur); |
| 995 | } |
| 996 | else |
| 997 | anum = send(fileno(stab_io(stab)->ifp), tmps, st[2]->str_cur, anum); |
| 998 | if (anum < 0) |
| 999 | goto say_undef; |
| 1000 | value = (double)anum; |
| 1001 | goto donumset; |
| 1002 | #else |
| 1003 | goto badsock; |
| 1004 | #endif |
| 1005 | case O_SEEK: |
| 1006 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1007 | stab = arg[1].arg_ptr.arg_stab; |
| 378cc40b |
1008 | else |
| a687059c |
1009 | stab = stabent(str_get(st[1]),TRUE); |
| 1010 | value = str_gnum(st[2]); |
| 378cc40b |
1011 | str_set(str, do_seek(stab, |
| a687059c |
1012 | (long)value, (int)str_gnum(st[3]) ) ? Yes : No); |
| 378cc40b |
1013 | STABSET(str); |
| 1014 | break; |
| a687059c |
1015 | case O_RETURN: |
| afd9f252 |
1016 | tmps = "_SUB_"; /* just fake up a "last _SUB_" */ |
| a687059c |
1017 | optype = O_LAST; |
| afd9f252 |
1018 | if (wantarray == G_ARRAY) { |
| a687059c |
1019 | lastretstr = Nullstr; |
| 1020 | lastspbase = arglast[1]; |
| 1021 | lastsize = arglast[2] - arglast[1]; |
| 1022 | } |
| 1023 | else |
| 1024 | lastretstr = str_static(st[arglast[2] - arglast[0]]); |
| 1025 | goto dopop; |
| 378cc40b |
1026 | case O_REDO: |
| 1027 | case O_NEXT: |
| 1028 | case O_LAST: |
| 1029 | if (maxarg > 0) { |
| a687059c |
1030 | tmps = str_get(arg[1].arg_ptr.arg_str); |
| 1031 | dopop: |
| 378cc40b |
1032 | while (loop_ptr >= 0 && (!loop_stack[loop_ptr].loop_label || |
| 1033 | strNE(tmps,loop_stack[loop_ptr].loop_label) )) { |
| 1034 | #ifdef DEBUGGING |
| 1035 | if (debug & 4) { |
| 1036 | deb("(Skipping label #%d %s)\n",loop_ptr, |
| 1037 | loop_stack[loop_ptr].loop_label); |
| 1038 | } |
| 1039 | #endif |
| 1040 | loop_ptr--; |
| 1041 | } |
| 1042 | #ifdef DEBUGGING |
| 1043 | if (debug & 4) { |
| 1044 | deb("(Found label #%d %s)\n",loop_ptr, |
| 1045 | loop_stack[loop_ptr].loop_label); |
| 1046 | } |
| 1047 | #endif |
| 1048 | } |
| 1049 | if (loop_ptr < 0) |
| 1050 | fatal("Bad label: %s", maxarg > 0 ? tmps : "<null>"); |
| a687059c |
1051 | if (!lastretstr && optype == O_LAST && lastsize) { |
| 1052 | st -= arglast[0]; |
| 1053 | st += lastspbase + 1; |
| 1054 | optype = loop_stack[loop_ptr].loop_sp - lastspbase; /* negative */ |
| 1055 | if (optype) { |
| 1056 | for (anum = lastsize; anum > 0; anum--,st++) |
| 1057 | st[optype] = str_static(st[0]); |
| 1058 | } |
| 1059 | longjmp(loop_stack[loop_ptr].loop_env, O_LAST); |
| 1060 | } |
| 378cc40b |
1061 | longjmp(loop_stack[loop_ptr].loop_env, optype); |
| a687059c |
1062 | case O_DUMP: |
| 378cc40b |
1063 | case O_GOTO:/* shudder */ |
| a687059c |
1064 | goto_targ = str_get(arg[1].arg_ptr.arg_str); |
| 1065 | if (!*goto_targ) |
| 1066 | goto_targ = Nullch; /* just restart from top */ |
| 1067 | if (optype == O_DUMP) { |
| 1068 | do_undump = 1; |
| 1069 | abort(); |
| 1070 | } |
| 378cc40b |
1071 | longjmp(top_env, 1); |
| 1072 | case O_INDEX: |
| a687059c |
1073 | tmps = str_get(st[1]); |
| 1074 | #ifndef lint |
| 1075 | if (!(tmps2 = fbminstr((unsigned char*)tmps, |
| 1076 | (unsigned char*)tmps + st[1]->str_cur, st[2]))) |
| 1077 | #else |
| 1078 | if (tmps2 = fbminstr(Null(unsigned char*),Null(unsigned char*),Nullstr)) |
| 1079 | #endif |
| 1080 | value = (double)(-1 + arybase); |
| 1081 | else |
| 1082 | value = (double)(tmps2 - tmps + arybase); |
| 1083 | goto donumset; |
| 1084 | case O_RINDEX: |
| 1085 | tmps = str_get(st[1]); |
| 1086 | tmps2 = str_get(st[2]); |
| 1087 | #ifndef lint |
| 1088 | if (!(tmps2 = rninstr(tmps, tmps + st[1]->str_cur, |
| 1089 | tmps2, tmps2 + st[2]->str_cur))) |
| 1090 | #else |
| 1091 | if (tmps2 = rninstr(Nullch,Nullch,Nullch,Nullch)) |
| 1092 | #endif |
| 378cc40b |
1093 | value = (double)(-1 + arybase); |
| 1094 | else |
| 1095 | value = (double)(tmps2 - tmps + arybase); |
| 1096 | goto donumset; |
| 1097 | case O_TIME: |
| a687059c |
1098 | #ifndef lint |
| 378cc40b |
1099 | value = (double) time(Null(long*)); |
| a687059c |
1100 | #endif |
| 378cc40b |
1101 | goto donumset; |
| 1102 | case O_TMS: |
| a687059c |
1103 | sp = do_tms(str,gimme,arglast); |
| 1104 | goto array_return; |
| 378cc40b |
1105 | case O_LOCALTIME: |
| a687059c |
1106 | if (maxarg < 1) |
| 1107 | (void)time(&when); |
| 1108 | else |
| 1109 | when = (long)str_gnum(st[1]); |
| 1110 | sp = do_time(str,localtime(&when), |
| 1111 | gimme,arglast); |
| 1112 | goto array_return; |
| 378cc40b |
1113 | case O_GMTIME: |
| a687059c |
1114 | if (maxarg < 1) |
| 1115 | (void)time(&when); |
| 1116 | else |
| 1117 | when = (long)str_gnum(st[1]); |
| 1118 | sp = do_time(str,gmtime(&when), |
| 1119 | gimme,arglast); |
| 1120 | goto array_return; |
| 1121 | case O_LSTAT: |
| 378cc40b |
1122 | case O_STAT: |
| a687059c |
1123 | sp = do_stat(str,arg, |
| 1124 | gimme,arglast); |
| 1125 | goto array_return; |
| 378cc40b |
1126 | case O_CRYPT: |
| 1127 | #ifdef CRYPT |
| a687059c |
1128 | tmps = str_get(st[1]); |
| 1129 | #ifdef FCRYPT |
| 1130 | str_set(str,fcrypt(tmps,str_get(st[2]))); |
| 1131 | #else |
| 1132 | str_set(str,crypt(tmps,str_get(st[2]))); |
| 1133 | #endif |
| 378cc40b |
1134 | #else |
| 1135 | fatal( |
| 1136 | "The crypt() function is unimplemented due to excessive paranoia."); |
| 1137 | #endif |
| 1138 | break; |
| a687059c |
1139 | case O_ATAN2: |
| 1140 | value = str_gnum(st[1]); |
| 1141 | value = atan2(value,str_gnum(st[2])); |
| 1142 | goto donumset; |
| 1143 | case O_SIN: |
| 1144 | if (maxarg < 1) |
| 1145 | value = str_gnum(stab_val(defstab)); |
| 1146 | else |
| 1147 | value = str_gnum(st[1]); |
| 1148 | value = sin(value); |
| 1149 | goto donumset; |
| 1150 | case O_COS: |
| 1151 | if (maxarg < 1) |
| 1152 | value = str_gnum(stab_val(defstab)); |
| 1153 | else |
| 1154 | value = str_gnum(st[1]); |
| 1155 | value = cos(value); |
| 1156 | goto donumset; |
| 1157 | case O_RAND: |
| 1158 | if (maxarg < 1) |
| 1159 | value = 1.0; |
| 1160 | else |
| 1161 | value = str_gnum(st[1]); |
| 1162 | if (value == 0.0) |
| 1163 | value = 1.0; |
| 1164 | #if RANDBITS == 31 |
| 1165 | value = rand() * value / 2147483648.0; |
| 1166 | #else |
| 1167 | #if RANDBITS == 16 |
| 1168 | value = rand() * value / 65536.0; |
| 1169 | #else |
| 1170 | #if RANDBITS == 15 |
| 1171 | value = rand() * value / 32768.0; |
| 1172 | #else |
| 1173 | value = rand() * value / (double)(((unsigned long)1) << RANDBITS); |
| 1174 | #endif |
| 1175 | #endif |
| 1176 | #endif |
| 1177 | goto donumset; |
| 1178 | case O_SRAND: |
| 1179 | if (maxarg < 1) { |
| 1180 | (void)time(&when); |
| 1181 | anum = when; |
| 1182 | } |
| 1183 | else |
| 1184 | anum = (int)str_gnum(st[1]); |
| 1185 | (void)srand(anum); |
| 1186 | goto say_yes; |
| 378cc40b |
1187 | case O_EXP: |
| a687059c |
1188 | if (maxarg < 1) |
| 1189 | value = str_gnum(stab_val(defstab)); |
| 1190 | else |
| 1191 | value = str_gnum(st[1]); |
| 1192 | value = exp(value); |
| 378cc40b |
1193 | goto donumset; |
| 1194 | case O_LOG: |
| a687059c |
1195 | if (maxarg < 1) |
| 1196 | value = str_gnum(stab_val(defstab)); |
| 1197 | else |
| 1198 | value = str_gnum(st[1]); |
| 1199 | value = log(value); |
| 378cc40b |
1200 | goto donumset; |
| 1201 | case O_SQRT: |
| a687059c |
1202 | if (maxarg < 1) |
| 1203 | value = str_gnum(stab_val(defstab)); |
| 1204 | else |
| 1205 | value = str_gnum(st[1]); |
| 1206 | value = sqrt(value); |
| 378cc40b |
1207 | goto donumset; |
| 1208 | case O_INT: |
| a687059c |
1209 | if (maxarg < 1) |
| 1210 | value = str_gnum(stab_val(defstab)); |
| 1211 | else |
| 1212 | value = str_gnum(st[1]); |
| 378cc40b |
1213 | if (value >= 0.0) |
| a687059c |
1214 | (void)modf(value,&value); |
| 378cc40b |
1215 | else { |
| a687059c |
1216 | (void)modf(-value,&value); |
| 378cc40b |
1217 | value = -value; |
| 1218 | } |
| 1219 | goto donumset; |
| 1220 | case O_ORD: |
| a687059c |
1221 | if (maxarg < 1) |
| 1222 | tmps = str_get(stab_val(defstab)); |
| 1223 | else |
| 1224 | tmps = str_get(st[1]); |
| 1225 | #ifndef I286 |
| 663a0e37 |
1226 | value = (double) (*tmps & 255); |
| a687059c |
1227 | #else |
| 1228 | anum = (int) *tmps; |
| 663a0e37 |
1229 | value = (double) (anum & 255); |
| a687059c |
1230 | #endif |
| 378cc40b |
1231 | goto donumset; |
| 1232 | case O_SLEEP: |
| a687059c |
1233 | if (maxarg < 1) |
| 1234 | tmps = Nullch; |
| 1235 | else |
| 1236 | tmps = str_get(st[1]); |
| 1237 | (void)time(&when); |
| 378cc40b |
1238 | if (!tmps || !*tmps) |
| 1239 | sleep((32767<<16)+32767); |
| 1240 | else |
| a687059c |
1241 | sleep((unsigned int)atoi(tmps)); |
| 1242 | #ifndef lint |
| 378cc40b |
1243 | value = (double)when; |
| a687059c |
1244 | (void)time(&when); |
| 378cc40b |
1245 | value = ((double)when) - value; |
| a687059c |
1246 | #endif |
| 378cc40b |
1247 | goto donumset; |
| a687059c |
1248 | case O_RANGE: |
| 1249 | sp = do_range(gimme,arglast); |
| 1250 | goto array_return; |
| 1251 | case O_F_OR_R: |
| 1252 | if (gimme == G_ARRAY) { /* it's a range */ |
| 1253 | /* can we optimize to constant array? */ |
| 1254 | if ((arg[1].arg_type & A_MASK) == A_SINGLE && |
| 1255 | (arg[2].arg_type & A_MASK) == A_SINGLE) { |
| 1256 | st[2] = arg[2].arg_ptr.arg_str; |
| 1257 | sp = do_range(gimme,arglast); |
| 1258 | st = stack->ary_array; |
| 1259 | maxarg = sp - arglast[0]; |
| 1260 | str_free(arg[1].arg_ptr.arg_str); |
| 1261 | str_free(arg[2].arg_ptr.arg_str); |
| 1262 | arg->arg_type = O_ARRAY; |
| 1263 | arg[1].arg_type = A_STAB|A_DONT; |
| 1264 | arg->arg_len = 1; |
| 1265 | stab = arg[1].arg_ptr.arg_stab = aadd(genstab()); |
| 1266 | ary = stab_array(stab); |
| 1267 | afill(ary,maxarg - 1); |
| 1268 | st += arglast[0]+1; |
| 1269 | while (maxarg-- > 0) |
| 1270 | ary->ary_array[maxarg] = str_smake(st[maxarg]); |
| 1271 | goto array_return; |
| 1272 | } |
| 1273 | arg->arg_type = optype = O_RANGE; |
| 1274 | maxarg = arg->arg_len = 2; |
| 1275 | anum = 2; |
| 1276 | arg[anum].arg_flags &= ~AF_ARYOK; |
| 1277 | argflags = arg[anum].arg_flags; |
| 1278 | argtype = arg[anum].arg_type & A_MASK; |
| 1279 | arg[anum].arg_type = argtype; |
| 1280 | argptr = arg[anum].arg_ptr; |
| 1281 | sp = arglast[0]; |
| 1282 | st -= sp; |
| 1283 | sp++; |
| 1284 | goto re_eval; |
| 1285 | } |
| 1286 | arg->arg_type = O_FLIP; |
| 1287 | /* FALL THROUGH */ |
| 378cc40b |
1288 | case O_FLIP: |
| a687059c |
1289 | if ((arg[1].arg_type & A_MASK) == A_SINGLE ? |
| 1290 | last_in_stab && (int)str_gnum(st[1]) == stab_io(last_in_stab)->lines |
| 1291 | : |
| 1292 | str_true(st[1]) ) { |
| 378cc40b |
1293 | str_numset(str,0.0); |
| 1294 | anum = 2; |
| 1295 | arg->arg_type = optype = O_FLOP; |
| a687059c |
1296 | arg[2].arg_type &= ~A_DONT; |
| 1297 | arg[1].arg_type |= A_DONT; |
| 378cc40b |
1298 | argflags = arg[2].arg_flags; |
| a687059c |
1299 | argtype = arg[2].arg_type & A_MASK; |
| 378cc40b |
1300 | argptr = arg[2].arg_ptr; |
| a687059c |
1301 | sp = arglast[0]; |
| 1302 | st -= sp; |
| 378cc40b |
1303 | goto re_eval; |
| 1304 | } |
| 1305 | str_set(str,""); |
| 1306 | break; |
| 1307 | case O_FLOP: |
| 1308 | str_inc(str); |
| a687059c |
1309 | if ((arg[2].arg_type & A_MASK) == A_SINGLE ? |
| 1310 | last_in_stab && (int)str_gnum(st[2]) == stab_io(last_in_stab)->lines |
| 1311 | : |
| 1312 | str_true(st[2]) ) { |
| 378cc40b |
1313 | arg->arg_type = O_FLIP; |
| a687059c |
1314 | arg[1].arg_type &= ~A_DONT; |
| 1315 | arg[2].arg_type |= A_DONT; |
| 378cc40b |
1316 | str_cat(str,"E0"); |
| 1317 | } |
| 1318 | break; |
| 1319 | case O_FORK: |
| a687059c |
1320 | anum = fork(); |
| 1321 | if (!anum && (tmpstab = stabent("$",allstabs))) |
| 1322 | str_numset(STAB_STR(tmpstab),(double)getpid()); |
| 1323 | value = (double)anum; |
| 378cc40b |
1324 | goto donumset; |
| 1325 | case O_WAIT: |
| a687059c |
1326 | #ifndef lint |
| afd9f252 |
1327 | /* ihand = signal(SIGINT, SIG_IGN); */ |
| 1328 | /* qhand = signal(SIGQUIT, SIG_IGN); */ |
| a687059c |
1329 | anum = wait(&argflags); |
| 1330 | if (anum > 0) |
| 1331 | pidgone(anum,argflags); |
| 1332 | value = (double)anum; |
| 1333 | #else |
| afd9f252 |
1334 | /* ihand = qhand = 0; */ |
| a687059c |
1335 | #endif |
| afd9f252 |
1336 | /* (void)signal(SIGINT, ihand); */ |
| 1337 | /* (void)signal(SIGQUIT, qhand); */ |
| 378cc40b |
1338 | statusvalue = (unsigned short)argflags; |
| 1339 | goto donumset; |
| 1340 | case O_SYSTEM: |
| a687059c |
1341 | #ifdef TAINT |
| 1342 | if (arglast[2] - arglast[1] == 1) { |
| 1343 | taintenv(); |
| 1344 | tainted |= st[2]->str_tainted; |
| 1345 | taintproper("Insecure dependency in system"); |
| 1346 | } |
| 1347 | #endif |
| 378cc40b |
1348 | while ((anum = vfork()) == -1) { |
| 1349 | if (errno != EAGAIN) { |
| 1350 | value = -1.0; |
| 1351 | goto donumset; |
| 1352 | } |
| 1353 | sleep(5); |
| 1354 | } |
| 1355 | if (anum > 0) { |
| a687059c |
1356 | #ifndef lint |
| 378cc40b |
1357 | ihand = signal(SIGINT, SIG_IGN); |
| 1358 | qhand = signal(SIGQUIT, SIG_IGN); |
| a687059c |
1359 | while ((argtype = wait(&argflags)) != anum && argtype >= 0) |
| 1360 | pidgone(argtype,argflags); |
| 1361 | #else |
| 1362 | ihand = qhand = 0; |
| 1363 | #endif |
| 1364 | (void)signal(SIGINT, ihand); |
| 1365 | (void)signal(SIGQUIT, qhand); |
| 378cc40b |
1366 | statusvalue = (unsigned short)argflags; |
| 1367 | if (argtype == -1) |
| 1368 | value = -1.0; |
| 1369 | else { |
| 1370 | value = (double)((unsigned int)argflags & 0xffff); |
| 1371 | } |
| 1372 | goto donumset; |
| 1373 | } |
| a687059c |
1374 | if ((arg[1].arg_type & A_MASK) == A_STAB) |
| 1375 | value = (double)do_aexec(st[1],arglast); |
| 1376 | else if (arglast[2] - arglast[1] != 1) |
| 1377 | value = (double)do_aexec(Nullstr,arglast); |
| 378cc40b |
1378 | else { |
| a687059c |
1379 | value = (double)do_exec(str_get(str_static(st[2]))); |
| 378cc40b |
1380 | } |
| 1381 | _exit(-1); |
| 1382 | case O_EXEC: |
| a687059c |
1383 | if ((arg[1].arg_type & A_MASK) == A_STAB) |
| 1384 | value = (double)do_aexec(st[1],arglast); |
| 1385 | else if (arglast[2] - arglast[1] != 1) |
| 1386 | value = (double)do_aexec(Nullstr,arglast); |
| 378cc40b |
1387 | else { |
| a687059c |
1388 | value = (double)do_exec(str_get(str_static(st[2]))); |
| 378cc40b |
1389 | } |
| 1390 | goto donumset; |
| 1391 | case O_HEX: |
| 1392 | argtype = 4; |
| 1393 | goto snarfnum; |
| 1394 | |
| 1395 | case O_OCT: |
| 1396 | argtype = 3; |
| 1397 | |
| 1398 | snarfnum: |
| 1399 | anum = 0; |
| a687059c |
1400 | if (maxarg < 1) |
| 1401 | tmps = str_get(stab_val(defstab)); |
| 1402 | else |
| 1403 | tmps = str_get(st[1]); |
| 378cc40b |
1404 | for (;;) { |
| 1405 | switch (*tmps) { |
| 1406 | default: |
| 1407 | goto out; |
| 1408 | case '8': case '9': |
| 1409 | if (argtype != 4) |
| 1410 | goto out; |
| 1411 | /* FALL THROUGH */ |
| 1412 | case '0': case '1': case '2': case '3': case '4': |
| 1413 | case '5': case '6': case '7': |
| 1414 | anum <<= argtype; |
| 1415 | anum += *tmps++ & 15; |
| 1416 | break; |
| 1417 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
| 1418 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
| 1419 | if (argtype != 4) |
| 1420 | goto out; |
| 1421 | anum <<= 4; |
| 1422 | anum += (*tmps++ & 7) + 9; |
| 1423 | break; |
| 1424 | case 'x': |
| 1425 | argtype = 4; |
| 1426 | tmps++; |
| 1427 | break; |
| 1428 | } |
| 1429 | } |
| 1430 | out: |
| 1431 | value = (double)anum; |
| 1432 | goto donumset; |
| 1433 | case O_CHMOD: |
| 1434 | case O_CHOWN: |
| 1435 | case O_KILL: |
| 1436 | case O_UNLINK: |
| 1437 | case O_UTIME: |
| a687059c |
1438 | value = (double)apply(optype,arglast); |
| 378cc40b |
1439 | goto donumset; |
| 1440 | case O_UMASK: |
| a687059c |
1441 | if (maxarg < 1) { |
| 1442 | anum = umask(0); |
| 1443 | (void)umask(anum); |
| 1444 | } |
| 1445 | else |
| 1446 | anum = umask((int)str_gnum(st[1])); |
| 1447 | value = (double)anum; |
| 1448 | #ifdef TAINT |
| 1449 | taintproper("Insecure dependency in umask"); |
| 1450 | #endif |
| 378cc40b |
1451 | goto donumset; |
| 1452 | case O_RENAME: |
| a687059c |
1453 | tmps = str_get(st[1]); |
| 1454 | tmps2 = str_get(st[2]); |
| 1455 | #ifdef TAINT |
| 1456 | taintproper("Insecure dependency in rename"); |
| 1457 | #endif |
| 378cc40b |
1458 | #ifdef RENAME |
| a687059c |
1459 | value = (double)(rename(tmps,tmps2) >= 0); |
| 378cc40b |
1460 | #else |
| 378cc40b |
1461 | if (euid || stat(tmps2,&statbuf) < 0 || |
| 1462 | (statbuf.st_mode & S_IFMT) != S_IFDIR ) |
| a687059c |
1463 | (void)UNLINK(tmps2); /* avoid unlinking a directory */ |
| 378cc40b |
1464 | if (!(anum = link(tmps,tmps2))) |
| 1465 | anum = UNLINK(tmps); |
| 1466 | value = (double)(anum >= 0); |
| 1467 | #endif |
| 1468 | goto donumset; |
| 1469 | case O_LINK: |
| a687059c |
1470 | tmps = str_get(st[1]); |
| 1471 | tmps2 = str_get(st[2]); |
| 1472 | #ifdef TAINT |
| 1473 | taintproper("Insecure dependency in link"); |
| 1474 | #endif |
| 1475 | value = (double)(link(tmps,tmps2) >= 0); |
| 1476 | goto donumset; |
| 1477 | case O_MKDIR: |
| 1478 | tmps = str_get(st[1]); |
| 1479 | anum = (int)str_gnum(st[2]); |
| 1480 | #ifdef TAINT |
| 1481 | taintproper("Insecure dependency in mkdir"); |
| 1482 | #endif |
| 1483 | #ifdef MKDIR |
| 1484 | value = (double)(mkdir(tmps,anum) >= 0); |
| bf38876a |
1485 | goto donumset; |
| a687059c |
1486 | #else |
| bf38876a |
1487 | (void)strcpy(buf,"mkdir "); |
| 1488 | #endif |
| 1489 | #if !defined(MKDIR) || !defined(RMDIR) |
| a687059c |
1490 | one_liner: |
| bf38876a |
1491 | for (tmps2 = buf+6; *tmps; ) { |
| 1492 | *tmps2++ = '\\'; |
| 1493 | *tmps2++ = *tmps++; |
| 1494 | } |
| 1495 | (void)strcpy(tmps2," 2>&1"); |
| a687059c |
1496 | rsfp = mypopen(buf,"r"); |
| 1497 | if (rsfp) { |
| 1498 | *buf = '\0'; |
| 1499 | tmps2 = fgets(buf,sizeof buf,rsfp); |
| 1500 | (void)mypclose(rsfp); |
| 1501 | if (tmps2 != Nullch) { |
| bf38876a |
1502 | for (errno = 1; errno < sys_nerr; errno++) { |
| a687059c |
1503 | if (instr(buf,sys_errlist[errno])) /* you don't see this */ |
| 1504 | goto say_zero; |
| 1505 | } |
| 1506 | errno = 0; |
| bf38876a |
1507 | #ifndef EACCES |
| 1508 | #define EACCES EPERM |
| 1509 | #endif |
| 1510 | if (instr(buf,"cannot make")) |
| 1511 | errno = EEXIST; |
| 1512 | else if (instr(buf,"non-exist")) |
| 1513 | errno = ENOENT; |
| afd9f252 |
1514 | else if (instr(buf,"does not exist")) |
| 1515 | errno = ENOENT; |
| bf38876a |
1516 | else if (instr(buf,"not empty")) |
| 1517 | errno = EBUSY; |
| 1518 | else if (instr(buf,"cannot access")) |
| 1519 | errno = EACCES; |
| 1520 | else |
| 1521 | errno = EPERM; |
| a687059c |
1522 | goto say_zero; |
| 1523 | } |
| bf38876a |
1524 | else { /* some mkdirs return no failure indication */ |
| 1525 | tmps = str_get(st[1]); |
| 1526 | anum = (stat(tmps,&statbuf) >= 0); |
| 1527 | if (optype == O_RMDIR) |
| 1528 | anum = !anum; |
| 1529 | if (anum) |
| 1530 | errno = 0; |
| 1531 | else |
| 1532 | errno = EACCES; /* a guess */ |
| 1533 | value = (double)anum; |
| 1534 | } |
| 1535 | goto donumset; |
| a687059c |
1536 | } |
| 1537 | else |
| 1538 | goto say_zero; |
| 1539 | #endif |
| a687059c |
1540 | case O_RMDIR: |
| 1541 | if (maxarg < 1) |
| 1542 | tmps = str_get(stab_val(defstab)); |
| 1543 | else |
| 1544 | tmps = str_get(st[1]); |
| 1545 | #ifdef TAINT |
| 1546 | taintproper("Insecure dependency in rmdir"); |
| 1547 | #endif |
| 1548 | #ifdef RMDIR |
| 1549 | value = (double)(rmdir(tmps) >= 0); |
| 1550 | goto donumset; |
| 1551 | #else |
| bf38876a |
1552 | (void)strcpy(buf,"rmdir "); |
| a687059c |
1553 | goto one_liner; /* see above in MKDIR */ |
| 1554 | #endif |
| 1555 | case O_GETPPID: |
| 1556 | value = (double)getppid(); |
| 1557 | goto donumset; |
| 1558 | case O_GETPGRP: |
| 1559 | #ifdef GETPGRP |
| 1560 | if (maxarg < 1) |
| 1561 | anum = 0; |
| 1562 | else |
| 1563 | anum = (int)str_gnum(st[1]); |
| 1564 | value = (double)getpgrp(anum); |
| 1565 | goto donumset; |
| 1566 | #else |
| 1567 | fatal("The getpgrp() function is unimplemented on this machine"); |
| 1568 | break; |
| 1569 | #endif |
| 1570 | case O_SETPGRP: |
| 1571 | #ifdef SETPGRP |
| 1572 | argtype = (int)str_gnum(st[1]); |
| 1573 | anum = (int)str_gnum(st[2]); |
| 1574 | #ifdef TAINT |
| 1575 | taintproper("Insecure dependency in setpgrp"); |
| 1576 | #endif |
| 1577 | value = (double)(setpgrp(argtype,anum) >= 0); |
| 1578 | goto donumset; |
| 1579 | #else |
| 1580 | fatal("The setpgrp() function is unimplemented on this machine"); |
| 1581 | break; |
| 1582 | #endif |
| 1583 | case O_GETPRIORITY: |
| 1584 | #ifdef GETPRIORITY |
| 1585 | argtype = (int)str_gnum(st[1]); |
| 1586 | anum = (int)str_gnum(st[2]); |
| 1587 | value = (double)getpriority(argtype,anum); |
| 1588 | goto donumset; |
| 1589 | #else |
| 1590 | fatal("The getpriority() function is unimplemented on this machine"); |
| 1591 | break; |
| 1592 | #endif |
| 1593 | case O_SETPRIORITY: |
| 1594 | #ifdef SETPRIORITY |
| 1595 | argtype = (int)str_gnum(st[1]); |
| 1596 | anum = (int)str_gnum(st[2]); |
| 1597 | optype = (int)str_gnum(st[3]); |
| 1598 | #ifdef TAINT |
| 1599 | taintproper("Insecure dependency in setpriority"); |
| 1600 | #endif |
| 1601 | value = (double)(setpriority(argtype,anum,optype) >= 0); |
| 378cc40b |
1602 | goto donumset; |
| a687059c |
1603 | #else |
| 1604 | fatal("The setpriority() function is unimplemented on this machine"); |
| 1605 | break; |
| 1606 | #endif |
| 1607 | case O_CHROOT: |
| 1608 | if (maxarg < 1) |
| 1609 | tmps = str_get(stab_val(defstab)); |
| 1610 | else |
| 1611 | tmps = str_get(st[1]); |
| 1612 | #ifdef TAINT |
| 1613 | taintproper("Insecure dependency in chroot"); |
| 1614 | #endif |
| 1615 | value = (double)(chroot(tmps) >= 0); |
| 1616 | goto donumset; |
| 1617 | case O_FCNTL: |
| 1618 | case O_IOCTL: |
| 1619 | if (maxarg <= 0) |
| 1620 | stab = last_in_stab; |
| 1621 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1622 | stab = arg[1].arg_ptr.arg_stab; |
| 1623 | else |
| 1624 | stab = stabent(str_get(st[1]),TRUE); |
| afd9f252 |
1625 | argtype = (unsigned int)str_gnum(st[2]); |
| a687059c |
1626 | #ifdef TAINT |
| 1627 | taintproper("Insecure dependency in ioctl"); |
| 1628 | #endif |
| 1629 | anum = do_ctl(optype,stab,argtype,st[3]); |
| 1630 | if (anum == -1) |
| 1631 | goto say_undef; |
| 1632 | if (anum != 0) |
| 1633 | goto donumset; |
| 1634 | str_set(str,"0 but true"); |
| 1635 | STABSET(str); |
| 1636 | break; |
| 1637 | case O_FLOCK: |
| 1638 | #ifdef FLOCK |
| 1639 | if (maxarg <= 0) |
| 1640 | stab = last_in_stab; |
| 1641 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1642 | stab = arg[1].arg_ptr.arg_stab; |
| 1643 | else |
| 1644 | stab = stabent(str_get(st[1]),TRUE); |
| 1645 | if (stab && stab_io(stab)) |
| 1646 | fp = stab_io(stab)->ifp; |
| 1647 | else |
| 1648 | fp = Nullfp; |
| 1649 | if (fp) { |
| 1650 | argtype = (int)str_gnum(st[2]); |
| 1651 | value = (double)(flock(fileno(fp),argtype) >= 0); |
| 1652 | } |
| 1653 | else |
| 1654 | value = 0; |
| 1655 | goto donumset; |
| 1656 | #else |
| 1657 | fatal("The flock() function is unimplemented on this machine"); |
| 1658 | break; |
| 1659 | #endif |
| 378cc40b |
1660 | case O_UNSHIFT: |
| a687059c |
1661 | ary = stab_array(arg[1].arg_ptr.arg_stab); |
| 1662 | if (arglast[2] - arglast[1] != 1) |
| 1663 | do_unshift(ary,arglast); |
| 378cc40b |
1664 | else { |
| a687059c |
1665 | str = Str_new(52,0); /* must copy the STR */ |
| 1666 | str_sset(str,st[2]); |
| 378cc40b |
1667 | aunshift(ary,1); |
| a687059c |
1668 | (void)astore(ary,0,str); |
| 378cc40b |
1669 | } |
| 1670 | value = (double)(ary->ary_fill + 1); |
| 1671 | break; |
| 1672 | case O_DOFILE: |
| 1673 | case O_EVAL: |
| a687059c |
1674 | if (maxarg < 1) |
| 1675 | tmpstr = stab_val(defstab); |
| 1676 | else |
| 1677 | tmpstr = |
| 1678 | (arg[1].arg_type & A_MASK) != A_NULL ? st[1] : stab_val(defstab); |
| 1679 | #ifdef TAINT |
| 1680 | tainted |= tmpstr->str_tainted; |
| 1681 | taintproper("Insecure dependency in eval"); |
| 1682 | #endif |
| 1683 | sp = do_eval(tmpstr, optype, arg[2].arg_ptr.arg_hash, |
| 1684 | gimme,arglast); |
| 1685 | goto array_return; |
| 378cc40b |
1686 | |
| 1687 | case O_FTRREAD: |
| 1688 | argtype = 0; |
| 1689 | anum = S_IREAD; |
| 1690 | goto check_perm; |
| 1691 | case O_FTRWRITE: |
| 1692 | argtype = 0; |
| 1693 | anum = S_IWRITE; |
| 1694 | goto check_perm; |
| 1695 | case O_FTREXEC: |
| 1696 | argtype = 0; |
| 1697 | anum = S_IEXEC; |
| 1698 | goto check_perm; |
| 1699 | case O_FTEREAD: |
| 1700 | argtype = 1; |
| 1701 | anum = S_IREAD; |
| 1702 | goto check_perm; |
| 1703 | case O_FTEWRITE: |
| 1704 | argtype = 1; |
| 1705 | anum = S_IWRITE; |
| 1706 | goto check_perm; |
| 1707 | case O_FTEEXEC: |
| 1708 | argtype = 1; |
| 1709 | anum = S_IEXEC; |
| 1710 | check_perm: |
| a687059c |
1711 | if (mystat(arg,st[1]) < 0) |
| 1712 | goto say_undef; |
| 1713 | if (cando(anum,argtype,&statcache)) |
| 1714 | goto say_yes; |
| 1715 | goto say_no; |
| 378cc40b |
1716 | |
| 1717 | case O_FTIS: |
| a687059c |
1718 | if (mystat(arg,st[1]) < 0) |
| 1719 | goto say_undef; |
| 1720 | goto say_yes; |
| 378cc40b |
1721 | case O_FTEOWNED: |
| 1722 | case O_FTROWNED: |
| a687059c |
1723 | if (mystat(arg,st[1]) < 0) |
| 1724 | goto say_undef; |
| 1725 | if (statcache.st_uid == (optype == O_FTEOWNED ? euid : uid) ) |
| 1726 | goto say_yes; |
| 1727 | goto say_no; |
| 378cc40b |
1728 | case O_FTZERO: |
| a687059c |
1729 | if (mystat(arg,st[1]) < 0) |
| 1730 | goto say_undef; |
| 1731 | if (!statcache.st_size) |
| 1732 | goto say_yes; |
| 1733 | goto say_no; |
| 378cc40b |
1734 | case O_FTSIZE: |
| a687059c |
1735 | if (mystat(arg,st[1]) < 0) |
| 1736 | goto say_undef; |
| 1737 | if (statcache.st_size) |
| 1738 | goto say_yes; |
| 1739 | goto say_no; |
| 378cc40b |
1740 | |
| 1741 | case O_FTSOCK: |
| 1742 | #ifdef S_IFSOCK |
| 1743 | anum = S_IFSOCK; |
| 1744 | goto check_file_type; |
| 1745 | #else |
| a687059c |
1746 | goto say_no; |
| 378cc40b |
1747 | #endif |
| 1748 | case O_FTCHR: |
| 1749 | anum = S_IFCHR; |
| 1750 | goto check_file_type; |
| 1751 | case O_FTBLK: |
| 1752 | anum = S_IFBLK; |
| 1753 | goto check_file_type; |
| 1754 | case O_FTFILE: |
| 1755 | anum = S_IFREG; |
| 1756 | goto check_file_type; |
| 1757 | case O_FTDIR: |
| 1758 | anum = S_IFDIR; |
| 1759 | check_file_type: |
| a687059c |
1760 | if (mystat(arg,st[1]) < 0) |
| 1761 | goto say_undef; |
| 1762 | if ((statcache.st_mode & S_IFMT) == anum ) |
| 1763 | goto say_yes; |
| 1764 | goto say_no; |
| 378cc40b |
1765 | case O_FTPIPE: |
| 1766 | #ifdef S_IFIFO |
| 1767 | anum = S_IFIFO; |
| 1768 | goto check_file_type; |
| 1769 | #else |
| a687059c |
1770 | goto say_no; |
| 378cc40b |
1771 | #endif |
| 1772 | case O_FTLINK: |
| afd9f252 |
1773 | if (arg[1].arg_type & A_DONT) |
| 1774 | fatal("You must supply explicit filename with -l"); |
| 0d3e774c |
1775 | #ifdef LSTAT |
| a687059c |
1776 | if (lstat(str_get(st[1]),&statcache) < 0) |
| 1777 | goto say_undef; |
| 1778 | if ((statcache.st_mode & S_IFMT) == S_IFLNK ) |
| 1779 | goto say_yes; |
| 378cc40b |
1780 | #endif |
| a687059c |
1781 | goto say_no; |
| 378cc40b |
1782 | case O_SYMLINK: |
| 1783 | #ifdef SYMLINK |
| a687059c |
1784 | tmps = str_get(st[1]); |
| 1785 | tmps2 = str_get(st[2]); |
| 1786 | #ifdef TAINT |
| 1787 | taintproper("Insecure dependency in symlink"); |
| 1788 | #endif |
| 1789 | value = (double)(symlink(tmps,tmps2) >= 0); |
| 378cc40b |
1790 | goto donumset; |
| 1791 | #else |
| 1792 | fatal("Unsupported function symlink()"); |
| 1793 | #endif |
| a687059c |
1794 | case O_READLINK: |
| 1795 | #ifdef SYMLINK |
| 1796 | if (maxarg < 1) |
| 1797 | tmps = str_get(stab_val(defstab)); |
| 1798 | else |
| 1799 | tmps = str_get(st[1]); |
| 1800 | anum = readlink(tmps,buf,sizeof buf); |
| 1801 | if (anum < 0) |
| 1802 | goto say_undef; |
| 1803 | str_nset(str,buf,anum); |
| 1804 | break; |
| 1805 | #else |
| 1806 | fatal("Unsupported function readlink()"); |
| 1807 | #endif |
| 378cc40b |
1808 | case O_FTSUID: |
| 1809 | anum = S_ISUID; |
| 1810 | goto check_xid; |
| 1811 | case O_FTSGID: |
| 1812 | anum = S_ISGID; |
| 1813 | goto check_xid; |
| 1814 | case O_FTSVTX: |
| 1815 | anum = S_ISVTX; |
| 1816 | check_xid: |
| a687059c |
1817 | if (mystat(arg,st[1]) < 0) |
| 1818 | goto say_undef; |
| 1819 | if (statcache.st_mode & anum) |
| 1820 | goto say_yes; |
| 1821 | goto say_no; |
| 378cc40b |
1822 | case O_FTTTY: |
| a687059c |
1823 | if (arg[1].arg_type & A_DONT) { |
| 378cc40b |
1824 | stab = arg[1].arg_ptr.arg_stab; |
| 1825 | tmps = ""; |
| 1826 | } |
| 1827 | else |
| a687059c |
1828 | stab = stabent(tmps = str_get(st[1]),FALSE); |
| 1829 | if (stab && stab_io(stab) && stab_io(stab)->ifp) |
| 1830 | anum = fileno(stab_io(stab)->ifp); |
| 378cc40b |
1831 | else if (isdigit(*tmps)) |
| 1832 | anum = atoi(tmps); |
| 1833 | else |
| a687059c |
1834 | goto say_undef; |
| 378cc40b |
1835 | if (isatty(anum)) |
| a687059c |
1836 | goto say_yes; |
| 1837 | goto say_no; |
| 378cc40b |
1838 | case O_FTTEXT: |
| 1839 | case O_FTBINARY: |
| a687059c |
1840 | str = do_fttext(arg,st[1]); |
| 378cc40b |
1841 | break; |
| a687059c |
1842 | #ifdef SOCKET |
| 1843 | case O_SOCKET: |
| 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_socket(stab,arglast); |
| 1850 | #else |
| 1851 | (void)do_socket(stab,arglast); |
| 1852 | #endif |
| 1853 | goto donumset; |
| 1854 | case O_BIND: |
| 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 | #ifndef lint |
| 1860 | value = (double)do_bind(stab,arglast); |
| 1861 | #else |
| 1862 | (void)do_bind(stab,arglast); |
| 1863 | #endif |
| 1864 | goto donumset; |
| 1865 | case O_CONNECT: |
| 1866 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1867 | stab = arg[1].arg_ptr.arg_stab; |
| 1868 | else |
| 1869 | stab = stabent(str_get(st[1]),TRUE); |
| 1870 | #ifndef lint |
| 1871 | value = (double)do_connect(stab,arglast); |
| 1872 | #else |
| 1873 | (void)do_connect(stab,arglast); |
| 1874 | #endif |
| 1875 | goto donumset; |
| 1876 | case O_LISTEN: |
| 1877 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1878 | stab = arg[1].arg_ptr.arg_stab; |
| 1879 | else |
| 1880 | stab = stabent(str_get(st[1]),TRUE); |
| 1881 | #ifndef lint |
| 1882 | value = (double)do_listen(stab,arglast); |
| 1883 | #else |
| 1884 | (void)do_listen(stab,arglast); |
| 1885 | #endif |
| 1886 | goto donumset; |
| 1887 | case O_ACCEPT: |
| 1888 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1889 | stab = arg[1].arg_ptr.arg_stab; |
| 1890 | else |
| 1891 | stab = stabent(str_get(st[1]),TRUE); |
| 1892 | if ((arg[2].arg_type & A_MASK) == A_WORD) |
| 1893 | stab2 = arg[2].arg_ptr.arg_stab; |
| 1894 | else |
| 1895 | stab2 = stabent(str_get(st[2]),TRUE); |
| 1896 | do_accept(str,stab,stab2); |
| 1897 | STABSET(str); |
| 1898 | break; |
| 1899 | case O_GHBYNAME: |
| 1900 | if (maxarg < 1) |
| 1901 | goto say_undef; |
| 1902 | case O_GHBYADDR: |
| 1903 | case O_GHOSTENT: |
| 1904 | sp = do_ghent(optype, |
| 1905 | gimme,arglast); |
| 1906 | goto array_return; |
| 1907 | case O_GNBYNAME: |
| 1908 | if (maxarg < 1) |
| 1909 | goto say_undef; |
| 1910 | case O_GNBYADDR: |
| 1911 | case O_GNETENT: |
| 1912 | sp = do_gnent(optype, |
| 1913 | gimme,arglast); |
| 1914 | goto array_return; |
| 1915 | case O_GPBYNAME: |
| 1916 | if (maxarg < 1) |
| 1917 | goto say_undef; |
| 1918 | case O_GPBYNUMBER: |
| 1919 | case O_GPROTOENT: |
| 1920 | sp = do_gpent(optype, |
| 1921 | gimme,arglast); |
| 1922 | goto array_return; |
| 1923 | case O_GSBYNAME: |
| 1924 | if (maxarg < 1) |
| 1925 | goto say_undef; |
| 1926 | case O_GSBYPORT: |
| 1927 | case O_GSERVENT: |
| 1928 | sp = do_gsent(optype, |
| 1929 | gimme,arglast); |
| 1930 | goto array_return; |
| 1931 | case O_SHOSTENT: |
| 1932 | value = (double) sethostent((int)str_gnum(st[1])); |
| 1933 | goto donumset; |
| 1934 | case O_SNETENT: |
| 1935 | value = (double) setnetent((int)str_gnum(st[1])); |
| 1936 | goto donumset; |
| 1937 | case O_SPROTOENT: |
| 1938 | value = (double) setprotoent((int)str_gnum(st[1])); |
| 1939 | goto donumset; |
| 1940 | case O_SSERVENT: |
| 1941 | value = (double) setservent((int)str_gnum(st[1])); |
| 1942 | goto donumset; |
| 1943 | case O_EHOSTENT: |
| 1944 | value = (double) endhostent(); |
| 1945 | goto donumset; |
| 1946 | case O_ENETENT: |
| 1947 | value = (double) endnetent(); |
| 1948 | goto donumset; |
| 1949 | case O_EPROTOENT: |
| 1950 | value = (double) endprotoent(); |
| 1951 | goto donumset; |
| 1952 | case O_ESERVENT: |
| 1953 | value = (double) endservent(); |
| 1954 | goto donumset; |
| 1955 | case O_SSELECT: |
| 1956 | sp = do_select(gimme,arglast); |
| 1957 | goto array_return; |
| 1958 | case O_SOCKETPAIR: |
| 1959 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1960 | stab = arg[1].arg_ptr.arg_stab; |
| 1961 | else |
| 1962 | stab = stabent(str_get(st[1]),TRUE); |
| 1963 | if ((arg[2].arg_type & A_MASK) == A_WORD) |
| 1964 | stab2 = arg[2].arg_ptr.arg_stab; |
| 1965 | else |
| 1966 | stab2 = stabent(str_get(st[2]),TRUE); |
| 1967 | #ifndef lint |
| 1968 | value = (double)do_spair(stab,stab2,arglast); |
| 1969 | #else |
| 1970 | (void)do_spair(stab,stab2,arglast); |
| 1971 | #endif |
| 1972 | goto donumset; |
| 1973 | case O_SHUTDOWN: |
| 1974 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1975 | stab = arg[1].arg_ptr.arg_stab; |
| 1976 | else |
| 1977 | stab = stabent(str_get(st[1]),TRUE); |
| 1978 | #ifndef lint |
| 1979 | value = (double)do_shutdown(stab,arglast); |
| 1980 | #else |
| 1981 | (void)do_shutdown(stab,arglast); |
| 1982 | #endif |
| 1983 | goto donumset; |
| 1984 | case O_GSOCKOPT: |
| 1985 | case O_SSOCKOPT: |
| 1986 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1987 | stab = arg[1].arg_ptr.arg_stab; |
| 1988 | else |
| 1989 | stab = stabent(str_get(st[1]),TRUE); |
| 1990 | sp = do_sopt(optype,stab,arglast); |
| 1991 | goto array_return; |
| 1992 | case O_GETSOCKNAME: |
| 1993 | case O_GETPEERNAME: |
| 1994 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1995 | stab = arg[1].arg_ptr.arg_stab; |
| 1996 | else |
| 1997 | stab = stabent(str_get(st[1]),TRUE); |
| 1998 | sp = do_getsockname(optype,stab,arglast); |
| 1999 | goto array_return; |
| 2000 | |
| 2001 | #else /* SOCKET not defined */ |
| 2002 | case O_SOCKET: |
| 2003 | case O_BIND: |
| 2004 | case O_CONNECT: |
| 2005 | case O_LISTEN: |
| 2006 | case O_ACCEPT: |
| 2007 | case O_SSELECT: |
| 2008 | case O_SOCKETPAIR: |
| 2009 | case O_GHBYNAME: |
| 2010 | case O_GHBYADDR: |
| 2011 | case O_GHOSTENT: |
| 2012 | case O_GNBYNAME: |
| 2013 | case O_GNBYADDR: |
| 2014 | case O_GNETENT: |
| 2015 | case O_GPBYNAME: |
| 2016 | case O_GPBYNUMBER: |
| 2017 | case O_GPROTOENT: |
| 2018 | case O_GSBYNAME: |
| 2019 | case O_GSBYPORT: |
| 2020 | case O_GSERVENT: |
| 2021 | case O_SHOSTENT: |
| 2022 | case O_SNETENT: |
| 2023 | case O_SPROTOENT: |
| 2024 | case O_SSERVENT: |
| 2025 | case O_EHOSTENT: |
| 2026 | case O_ENETENT: |
| 2027 | case O_EPROTOENT: |
| 2028 | case O_ESERVENT: |
| 2029 | case O_SHUTDOWN: |
| 2030 | case O_GSOCKOPT: |
| 2031 | case O_SSOCKOPT: |
| 2032 | case O_GETSOCKNAME: |
| 2033 | case O_GETPEERNAME: |
| 2034 | badsock: |
| 2035 | fatal("Unsupported socket function"); |
| 2036 | #endif /* SOCKET */ |
| 2037 | case O_FILENO: |
| bf38876a |
2038 | if (maxarg < 1) |
| 2039 | goto say_undef; |
| a687059c |
2040 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 2041 | stab = arg[1].arg_ptr.arg_stab; |
| 2042 | else |
| 2043 | stab = stabent(str_get(st[1]),TRUE); |
| 2044 | if (!stab || !(stio = stab_io(stab)) || !(fp = stio->ifp)) |
| 2045 | goto say_undef; |
| 2046 | value = fileno(fp); |
| 2047 | goto donumset; |
| 2048 | case O_VEC: |
| 2049 | sp = do_vec(str == st[1], arg->arg_ptr.arg_str, arglast); |
| 2050 | goto array_return; |
| 2051 | case O_GPWNAM: |
| 2052 | case O_GPWUID: |
| 2053 | case O_GPWENT: |
| 2054 | sp = do_gpwent(optype, |
| 2055 | gimme,arglast); |
| 2056 | goto array_return; |
| 2057 | case O_SPWENT: |
| 2058 | value = (double) setpwent(); |
| 2059 | goto donumset; |
| 2060 | case O_EPWENT: |
| 2061 | value = (double) endpwent(); |
| 2062 | goto donumset; |
| 2063 | case O_GGRNAM: |
| 2064 | case O_GGRGID: |
| 2065 | case O_GGRENT: |
| 2066 | sp = do_ggrent(optype, |
| 2067 | gimme,arglast); |
| 2068 | goto array_return; |
| 2069 | case O_SGRENT: |
| 2070 | value = (double) setgrent(); |
| 2071 | goto donumset; |
| 2072 | case O_EGRENT: |
| 2073 | value = (double) endgrent(); |
| 2074 | goto donumset; |
| 2075 | case O_GETLOGIN: |
| 2076 | if (!(tmps = getlogin())) |
| 2077 | goto say_undef; |
| 2078 | str_set(str,tmps); |
| 2079 | break; |
| 2080 | case O_OPENDIR: |
| 2081 | case O_READDIR: |
| 2082 | case O_TELLDIR: |
| 2083 | case O_SEEKDIR: |
| 2084 | case O_REWINDDIR: |
| 2085 | case O_CLOSEDIR: |
| bf38876a |
2086 | if (maxarg < 1) |
| 2087 | goto say_undef; |
| a687059c |
2088 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 2089 | stab = arg[1].arg_ptr.arg_stab; |
| 2090 | else |
| 2091 | stab = stabent(str_get(st[1]),TRUE); |
| 2092 | sp = do_dirop(optype,stab,gimme,arglast); |
| 2093 | goto array_return; |
| 2094 | case O_SYSCALL: |
| 2095 | value = (double)do_syscall(arglast); |
| 2096 | goto donumset; |
| afd9f252 |
2097 | case O_PIPE: |
| 2098 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 2099 | stab = arg[1].arg_ptr.arg_stab; |
| 2100 | else |
| 2101 | stab = stabent(str_get(st[1]),TRUE); |
| 2102 | if ((arg[2].arg_type & A_MASK) == A_WORD) |
| 2103 | stab2 = arg[2].arg_ptr.arg_stab; |
| 2104 | else |
| 2105 | stab2 = stabent(str_get(st[2]),TRUE); |
| 2106 | do_pipe(str,stab,stab2); |
| 2107 | STABSET(str); |
| 2108 | break; |
| 378cc40b |
2109 | } |
| a687059c |
2110 | |
| 2111 | normal_return: |
| 2112 | st[1] = str; |
| 378cc40b |
2113 | #ifdef DEBUGGING |
| 2114 | if (debug) { |
| 2115 | dlevel--; |
| 2116 | if (debug & 8) |
| 2117 | deb("%s RETURNS \"%s\"\n",opname[optype],str_get(str)); |
| 2118 | } |
| 2119 | #endif |
| a687059c |
2120 | return arglast[0] + 1; |
| 378cc40b |
2121 | |
| 2122 | array_return: |
| 2123 | #ifdef DEBUGGING |
| 2124 | if (debug) { |
| 2125 | dlevel--; |
| afd9f252 |
2126 | if (debug & 8) { |
| 2127 | anum = sp - arglast[0]; |
| 2128 | switch (anum) { |
| 2129 | case 0: |
| 2130 | deb("%s RETURNS ()\n",opname[optype]); |
| 2131 | break; |
| 2132 | case 1: |
| 2133 | deb("%s RETURNS (\"%s\")\n",opname[optype],str_get(st[1])); |
| 2134 | break; |
| 2135 | default: |
| 2136 | deb("%s RETURNS %d ARGS (\"%s\",%s\"%s\"\n",opname[optype],anum, |
| 2137 | str_get(st[1]),anum==2?"":"...,",str_get(st[anum])); |
| 2138 | break; |
| 2139 | } |
| 2140 | } |
| 378cc40b |
2141 | } |
| 2142 | #endif |
| a687059c |
2143 | return sp; |
| 2144 | |
| 2145 | say_yes: |
| 2146 | str = &str_yes; |
| 2147 | goto normal_return; |
| 2148 | |
| 2149 | say_no: |
| 2150 | str = &str_no; |
| 2151 | goto normal_return; |
| 2152 | |
| 2153 | say_undef: |
| 2154 | str = &str_undef; |
| 2155 | goto normal_return; |
| 2156 | |
| 2157 | say_zero: |
| 2158 | value = 0.0; |
| 2159 | /* FALL THROUGH */ |
| 378cc40b |
2160 | |
| 2161 | donumset: |
| 2162 | str_numset(str,value); |
| 2163 | STABSET(str); |
| a687059c |
2164 | st[1] = str; |
| 378cc40b |
2165 | #ifdef DEBUGGING |
| 2166 | if (debug) { |
| 2167 | dlevel--; |
| 2168 | if (debug & 8) |
| 2169 | deb("%s RETURNS \"%f\"\n",opname[optype],value); |
| 2170 | } |
| 2171 | #endif |
| a687059c |
2172 | return arglast[0] + 1; |
| 378cc40b |
2173 | } |
projects / p5sagit/p5-mst-13.2.git / blame