| Commit | Line | Data |
|---|
| 79a0689e |
1 | /* $Header: eval.c,v 3.0.1.5 90/03/12 16:37:40 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 $ |
| 79a0689e |
9 | * Revision 3.0.1.5 90/03/12 16:37:40 lwall |
| 10 | * patch13: undef $/ didn't work as advertised |
| 11 | * patch13: added list slice operator (LIST)[LIST] |
| 12 | * patch13: added splice operator: @oldelems = splice(@array,$offset,$len,LIST) |
| 13 | * |
| afd9f252 |
14 | * Revision 3.0.1.4 90/02/28 17:36:59 lwall |
| 15 | * patch9: added pipe function |
| 16 | * patch9: a return in scalar context wouldn't return array |
| 17 | * patch9: !~ now always returns scalar even in array context |
| 18 | * patch9: some machines can't cast float to long with high bit set |
| 19 | * patch9: piped opens returned undef in child |
| 20 | * patch9: @array in scalar context now returns length of array |
| 21 | * patch9: chdir; coredumped |
| 22 | * patch9: wait no longer ignores signals |
| 23 | * patch9: mkdir now handles odd versions of /bin/mkdir |
| 24 | * patch9: -l FILEHANDLE now disallowed |
| 25 | * |
| 663a0e37 |
26 | * Revision 3.0.1.3 89/12/21 20:03:05 lwall |
| 27 | * patch7: errno may now be a macro with an lvalue |
| 28 | * patch7: ANSI strerror() is now supported |
| 29 | * patch7: send() didn't allow a TO argument |
| 30 | * patch7: ord() now always returns positive even on signed char machines |
| 31 | * |
| 0d3e774c |
32 | * Revision 3.0.1.2 89/11/17 15:19:34 lwall |
| 663a0e37 |
33 | * patch5: constant numeric subscripts get lost inside ?: |
| 0d3e774c |
34 | * |
| bf38876a |
35 | * Revision 3.0.1.1 89/11/11 04:31:51 lwall |
| 36 | * patch2: mkdir and rmdir needed to quote argument when passed to shell |
| 37 | * patch2: mkdir and rmdir now return better error codes |
| 38 | * patch2: fileno, seekdir, rewinddir and closedir now disallow defaults |
| 39 | * |
| a687059c |
40 | * Revision 3.0 89/10/18 15:17:04 lwall |
| 41 | * 3.0 baseline |
| 378cc40b |
42 | * |
| 43 | */ |
| 44 | |
| 45 | #include "EXTERN.h" |
| 46 | #include "perl.h" |
| 47 | |
| 48 | #include <signal.h> |
| 378cc40b |
49 | |
| a687059c |
50 | #ifdef I_VFORK |
| 51 | # include <vfork.h> |
| 52 | #endif |
| 53 | |
| 378cc40b |
54 | #ifdef VOIDSIG |
| 55 | static void (*ihand)(); |
| 56 | static void (*qhand)(); |
| 57 | #else |
| 58 | static int (*ihand)(); |
| 59 | static int (*qhand)(); |
| 60 | #endif |
| 61 | |
| 62 | ARG *debarg; |
| 63 | STR str_args; |
| a687059c |
64 | static STAB *stab2; |
| 65 | static STIO *stio; |
| 66 | static struct lstring *lstr; |
| 79a0689e |
67 | static int old_record_separator; |
| afd9f252 |
68 | extern int wantarray; |
| 378cc40b |
69 | |
| a687059c |
70 | double sin(), cos(), atan2(), pow(); |
| 71 | |
| 72 | char *getlogin(); |
| 73 | |
| a687059c |
74 | int |
| 75 | eval(arg,gimme,sp) |
| 378cc40b |
76 | register ARG *arg; |
| a687059c |
77 | int gimme; |
| 78 | register int sp; |
| 378cc40b |
79 | { |
| 80 | register STR *str; |
| 81 | register int anum; |
| 82 | register int optype; |
| a687059c |
83 | register STR **st; |
| 378cc40b |
84 | int maxarg; |
| 378cc40b |
85 | double value; |
| 378cc40b |
86 | register char *tmps; |
| 87 | char *tmps2; |
| 88 | int argflags; |
| 89 | int argtype; |
| 90 | union argptr argptr; |
| a687059c |
91 | int arglast[8]; /* highest sp for arg--valid only for non-O_LIST args */ |
| 378cc40b |
92 | unsigned long tmplong; |
| 93 | long when; |
| 94 | FILE *fp; |
| 95 | STR *tmpstr; |
| 96 | FCMD *form; |
| 97 | STAB *stab; |
| 98 | ARRAY *ary; |
| 99 | bool assigning = FALSE; |
| 100 | double exp(), log(), sqrt(), modf(); |
| 101 | char *crypt(), *getenv(); |
| a687059c |
102 | extern void grow_dlevel(); |
| 378cc40b |
103 | |
| 104 | if (!arg) |
| a687059c |
105 | goto say_undef; |
| 378cc40b |
106 | optype = arg->arg_type; |
| a687059c |
107 | maxarg = arg->arg_len; |
| 108 | arglast[0] = sp; |
| 109 | str = arg->arg_ptr.arg_str; |
| 110 | if (sp + maxarg > stack->ary_max) |
| 111 | astore(stack, sp + maxarg, Nullstr); |
| 112 | st = stack->ary_array; |
| 113 | |
| 378cc40b |
114 | #ifdef DEBUGGING |
| 115 | if (debug) { |
| 116 | if (debug & 8) { |
| 117 | deb("%s (%lx) %d args:\n",opname[optype],arg,maxarg); |
| 118 | } |
| 119 | debname[dlevel] = opname[optype][0]; |
| a687059c |
120 | debdelim[dlevel] = ':'; |
| 121 | if (++dlevel >= dlmax) |
| 122 | grow_dlevel(); |
| 378cc40b |
123 | } |
| 124 | #endif |
| 378cc40b |
125 | |
| a687059c |
126 | #include "evalargs.xc" |
| 127 | |
| 128 | st += arglast[0]; |
| 378cc40b |
129 | switch (optype) { |
| a687059c |
130 | case O_RCAT: |
| 131 | STABSET(str); |
| 132 | break; |
| 378cc40b |
133 | case O_ITEM: |
| a687059c |
134 | if (gimme == G_ARRAY) |
| 378cc40b |
135 | goto array_return; |
| a687059c |
136 | STR_SSET(str,st[1]); |
| 378cc40b |
137 | STABSET(str); |
| 138 | break; |
| 139 | case O_ITEM2: |
| a687059c |
140 | if (gimme == G_ARRAY) |
| 141 | goto array_return; |
| 142 | --anum; |
| 143 | STR_SSET(str,st[arglast[anum]-arglast[0]]); |
| 378cc40b |
144 | STABSET(str); |
| 145 | break; |
| 146 | case O_ITEM3: |
| a687059c |
147 | if (gimme == G_ARRAY) |
| 148 | goto array_return; |
| 149 | --anum; |
| 150 | STR_SSET(str,st[arglast[anum]-arglast[0]]); |
| 378cc40b |
151 | STABSET(str); |
| 152 | break; |
| 153 | case O_CONCAT: |
| a687059c |
154 | STR_SSET(str,st[1]); |
| 155 | str_scat(str,st[2]); |
| 378cc40b |
156 | STABSET(str); |
| 157 | break; |
| 158 | case O_REPEAT: |
| a687059c |
159 | STR_SSET(str,st[1]); |
| 160 | anum = (int)str_gnum(st[2]); |
| 378cc40b |
161 | if (anum >= 1) { |
| afd9f252 |
162 | tmpstr = Str_new(50, 0); |
| 378cc40b |
163 | str_sset(tmpstr,str); |
| afd9f252 |
164 | tmps = str_get(tmpstr); /* force to be string */ |
| 165 | STR_GROW(str, (anum * str->str_cur) + 1); |
| 166 | repeatcpy(str->str_ptr, tmps, tmpstr->str_cur, anum); |
| 79a0689e |
167 | str->str_cur *= anum; |
| 168 | str->str_ptr[str->str_cur] = '\0'; |
| 378cc40b |
169 | } |
| 170 | else |
| 171 | str_sset(str,&str_no); |
| 172 | STABSET(str); |
| 173 | break; |
| 174 | case O_MATCH: |
| a687059c |
175 | sp = do_match(str,arg, |
| 176 | gimme,arglast); |
| 177 | if (gimme == G_ARRAY) |
| 378cc40b |
178 | goto array_return; |
| 378cc40b |
179 | STABSET(str); |
| 180 | break; |
| 181 | case O_NMATCH: |
| a687059c |
182 | sp = do_match(str,arg, |
| afd9f252 |
183 | G_SCALAR,arglast); |
| a687059c |
184 | str_sset(str, str_true(str) ? &str_no : &str_yes); |
| 378cc40b |
185 | STABSET(str); |
| 186 | break; |
| 187 | case O_SUBST: |
| a687059c |
188 | sp = do_subst(str,arg,arglast[0]); |
| 189 | goto array_return; |
| 378cc40b |
190 | case O_NSUBST: |
| a687059c |
191 | sp = do_subst(str,arg,arglast[0]); |
| 378cc40b |
192 | str = arg->arg_ptr.arg_str; |
| a687059c |
193 | str_set(str, str_true(str) ? No : Yes); |
| 194 | goto array_return; |
| 378cc40b |
195 | case O_ASSIGN: |
| a687059c |
196 | if (arg[1].arg_flags & AF_ARYOK) { |
| 197 | if (arg->arg_len == 1) { |
| 198 | arg->arg_type = O_LOCAL; |
| a687059c |
199 | goto local; |
| 200 | } |
| 201 | else { |
| 202 | arg->arg_type = O_AASSIGN; |
| 203 | goto aassign; |
| 204 | } |
| 205 | } |
| 378cc40b |
206 | else { |
| a687059c |
207 | arg->arg_type = O_SASSIGN; |
| 208 | goto sassign; |
| 378cc40b |
209 | } |
| a687059c |
210 | case O_LOCAL: |
| 211 | local: |
| 212 | arglast[2] = arglast[1]; /* push a null array */ |
| 213 | /* FALL THROUGH */ |
| 214 | case O_AASSIGN: |
| 215 | aassign: |
| 216 | sp = do_assign(arg, |
| 217 | gimme,arglast); |
| 218 | goto array_return; |
| 219 | case O_SASSIGN: |
| 220 | sassign: |
| 221 | STR_SSET(str, st[2]); |
| 222 | STABSET(str); |
| 378cc40b |
223 | break; |
| 224 | case O_CHOP: |
| a687059c |
225 | st -= arglast[0]; |
| 378cc40b |
226 | str = arg->arg_ptr.arg_str; |
| a687059c |
227 | for (sp = arglast[0] + 1; sp <= arglast[1]; sp++) |
| 228 | do_chop(str,st[sp]); |
| 229 | st += arglast[0]; |
| 378cc40b |
230 | break; |
| a687059c |
231 | case O_DEFINED: |
| 232 | if (arg[1].arg_type & A_DONT) { |
| 233 | sp = do_defined(str,arg, |
| 234 | gimme,arglast); |
| 235 | goto array_return; |
| 236 | } |
| 237 | else if (str->str_pok || str->str_nok) |
| 238 | goto say_yes; |
| 239 | goto say_no; |
| 240 | case O_UNDEF: |
| 241 | if (arg[1].arg_type & A_DONT) { |
| 242 | sp = do_undef(str,arg, |
| 243 | gimme,arglast); |
| 244 | goto array_return; |
| 245 | } |
| 246 | else if (str != stab_val(defstab)) { |
| 247 | str->str_pok = str->str_nok = 0; |
| 248 | STABSET(str); |
| 249 | } |
| 250 | goto say_undef; |
| 378cc40b |
251 | case O_STUDY: |
| a687059c |
252 | sp = do_study(str,arg, |
| 253 | gimme,arglast); |
| 254 | goto array_return; |
| 255 | case O_POW: |
| 256 | value = str_gnum(st[1]); |
| 257 | value = pow(value,str_gnum(st[2])); |
| 378cc40b |
258 | goto donumset; |
| 259 | case O_MULTIPLY: |
| a687059c |
260 | value = str_gnum(st[1]); |
| 261 | value *= str_gnum(st[2]); |
| 378cc40b |
262 | goto donumset; |
| 263 | case O_DIVIDE: |
| a687059c |
264 | if ((value = str_gnum(st[2])) == 0.0) |
| 378cc40b |
265 | fatal("Illegal division by zero"); |
| a687059c |
266 | value = str_gnum(st[1]) / value; |
| 378cc40b |
267 | goto donumset; |
| 268 | case O_MODULO: |
| a687059c |
269 | tmplong = (long) str_gnum(st[2]); |
| 270 | if (tmplong == 0L) |
| 378cc40b |
271 | fatal("Illegal modulus zero"); |
| a687059c |
272 | when = (long)str_gnum(st[1]); |
| 273 | #ifndef lint |
| 274 | if (when >= 0) |
| 275 | value = (double)(when % tmplong); |
| 276 | else |
| 277 | value = (double)(tmplong - (-when % tmplong)); |
| 278 | #endif |
| 378cc40b |
279 | goto donumset; |
| 280 | case O_ADD: |
| a687059c |
281 | value = str_gnum(st[1]); |
| 282 | value += str_gnum(st[2]); |
| 378cc40b |
283 | goto donumset; |
| 284 | case O_SUBTRACT: |
| a687059c |
285 | value = str_gnum(st[1]); |
| 286 | value -= str_gnum(st[2]); |
| 378cc40b |
287 | goto donumset; |
| 288 | case O_LEFT_SHIFT: |
| a687059c |
289 | value = str_gnum(st[1]); |
| 290 | anum = (int)str_gnum(st[2]); |
| 291 | #ifndef lint |
| afd9f252 |
292 | value = (double)(((unsigned long)value) << anum); |
| a687059c |
293 | #endif |
| 378cc40b |
294 | goto donumset; |
| 295 | case O_RIGHT_SHIFT: |
| a687059c |
296 | value = str_gnum(st[1]); |
| 297 | anum = (int)str_gnum(st[2]); |
| 298 | #ifndef lint |
| afd9f252 |
299 | value = (double)(((unsigned long)value) >> anum); |
| a687059c |
300 | #endif |
| 378cc40b |
301 | goto donumset; |
| 302 | case O_LT: |
| a687059c |
303 | value = str_gnum(st[1]); |
| 304 | value = (value < str_gnum(st[2])) ? 1.0 : 0.0; |
| 378cc40b |
305 | goto donumset; |
| 306 | case O_GT: |
| a687059c |
307 | value = str_gnum(st[1]); |
| 308 | value = (value > str_gnum(st[2])) ? 1.0 : 0.0; |
| 378cc40b |
309 | goto donumset; |
| 310 | case O_LE: |
| a687059c |
311 | value = str_gnum(st[1]); |
| 312 | value = (value <= str_gnum(st[2])) ? 1.0 : 0.0; |
| 378cc40b |
313 | goto donumset; |
| 314 | case O_GE: |
| a687059c |
315 | value = str_gnum(st[1]); |
| 316 | value = (value >= str_gnum(st[2])) ? 1.0 : 0.0; |
| 378cc40b |
317 | goto donumset; |
| 318 | case O_EQ: |
| a687059c |
319 | if (dowarn) { |
| 320 | if ((!st[1]->str_nok && !looks_like_number(st[1])) || |
| 321 | (!st[2]->str_nok && !looks_like_number(st[2])) ) |
| 322 | warn("Possible use of == on string value"); |
| 323 | } |
| 324 | value = str_gnum(st[1]); |
| 325 | value = (value == str_gnum(st[2])) ? 1.0 : 0.0; |
| 378cc40b |
326 | goto donumset; |
| 327 | case O_NE: |
| a687059c |
328 | value = str_gnum(st[1]); |
| 329 | value = (value != str_gnum(st[2])) ? 1.0 : 0.0; |
| 378cc40b |
330 | goto donumset; |
| 331 | case O_BIT_AND: |
| a687059c |
332 | if (!sawvec || st[1]->str_nok || st[2]->str_nok) { |
| 333 | value = str_gnum(st[1]); |
| 334 | #ifndef lint |
| afd9f252 |
335 | value = (double)(((unsigned long)value) & |
| 336 | (unsigned long)str_gnum(st[2])); |
| a687059c |
337 | #endif |
| 338 | goto donumset; |
| 339 | } |
| 340 | else |
| 341 | do_vop(optype,str,st[1],st[2]); |
| 342 | break; |
| 378cc40b |
343 | case O_XOR: |
| a687059c |
344 | if (!sawvec || st[1]->str_nok || st[2]->str_nok) { |
| 345 | value = str_gnum(st[1]); |
| 346 | #ifndef lint |
| afd9f252 |
347 | value = (double)(((unsigned long)value) ^ |
| 348 | (unsigned long)str_gnum(st[2])); |
| a687059c |
349 | #endif |
| 350 | goto donumset; |
| 351 | } |
| 352 | else |
| 353 | do_vop(optype,str,st[1],st[2]); |
| 354 | break; |
| 378cc40b |
355 | case O_BIT_OR: |
| a687059c |
356 | if (!sawvec || st[1]->str_nok || st[2]->str_nok) { |
| 357 | value = str_gnum(st[1]); |
| 358 | #ifndef lint |
| afd9f252 |
359 | value = (double)(((unsigned long)value) | |
| 360 | (unsigned long)str_gnum(st[2])); |
| a687059c |
361 | #endif |
| 362 | goto donumset; |
| 363 | } |
| 364 | else |
| 365 | do_vop(optype,str,st[1],st[2]); |
| 366 | break; |
| 367 | /* use register in evaluating str_true() */ |
| 378cc40b |
368 | case O_AND: |
| a687059c |
369 | if (str_true(st[1])) { |
| 378cc40b |
370 | anum = 2; |
| 371 | optype = O_ITEM2; |
| 372 | argflags = arg[anum].arg_flags; |
| a687059c |
373 | if (gimme == G_ARRAY) |
| 374 | argflags |= AF_ARYOK; |
| 375 | argtype = arg[anum].arg_type & A_MASK; |
| 378cc40b |
376 | argptr = arg[anum].arg_ptr; |
| 377 | maxarg = anum = 1; |
| a687059c |
378 | sp = arglast[0]; |
| 379 | st -= sp; |
| 378cc40b |
380 | goto re_eval; |
| 381 | } |
| 382 | else { |
| 383 | if (assigning) { |
| a687059c |
384 | str_sset(str, st[1]); |
| 378cc40b |
385 | STABSET(str); |
| 386 | } |
| 387 | else |
| a687059c |
388 | str = st[1]; |
| 378cc40b |
389 | break; |
| 390 | } |
| 391 | case O_OR: |
| a687059c |
392 | if (str_true(st[1])) { |
| 378cc40b |
393 | if (assigning) { |
| a687059c |
394 | str_sset(str, st[1]); |
| 378cc40b |
395 | STABSET(str); |
| 396 | } |
| 397 | else |
| a687059c |
398 | str = st[1]; |
| 378cc40b |
399 | break; |
| 400 | } |
| 401 | else { |
| 402 | anum = 2; |
| 403 | optype = O_ITEM2; |
| 404 | argflags = arg[anum].arg_flags; |
| a687059c |
405 | if (gimme == G_ARRAY) |
| 406 | argflags |= AF_ARYOK; |
| 407 | argtype = arg[anum].arg_type & A_MASK; |
| 378cc40b |
408 | argptr = arg[anum].arg_ptr; |
| 409 | maxarg = anum = 1; |
| a687059c |
410 | sp = arglast[0]; |
| 411 | st -= sp; |
| 378cc40b |
412 | goto re_eval; |
| 413 | } |
| 414 | case O_COND_EXPR: |
| a687059c |
415 | anum = (str_true(st[1]) ? 2 : 3); |
| 378cc40b |
416 | optype = (anum == 2 ? O_ITEM2 : O_ITEM3); |
| 417 | argflags = arg[anum].arg_flags; |
| a687059c |
418 | if (gimme == G_ARRAY) |
| 419 | argflags |= AF_ARYOK; |
| 420 | argtype = arg[anum].arg_type & A_MASK; |
| 378cc40b |
421 | argptr = arg[anum].arg_ptr; |
| 422 | maxarg = anum = 1; |
| a687059c |
423 | sp = arglast[0]; |
| 424 | st -= sp; |
| 378cc40b |
425 | goto re_eval; |
| 426 | case O_COMMA: |
| a687059c |
427 | if (gimme == G_ARRAY) |
| 428 | goto array_return; |
| 429 | str = st[2]; |
| 378cc40b |
430 | break; |
| 431 | case O_NEGATE: |
| a687059c |
432 | value = -str_gnum(st[1]); |
| 378cc40b |
433 | goto donumset; |
| 434 | case O_NOT: |
| a687059c |
435 | value = (double) !str_true(st[1]); |
| 378cc40b |
436 | goto donumset; |
| 437 | case O_COMPLEMENT: |
| a687059c |
438 | #ifndef lint |
| afd9f252 |
439 | value = (double) ~(unsigned long)str_gnum(st[1]); |
| a687059c |
440 | #endif |
| 378cc40b |
441 | goto donumset; |
| 442 | case O_SELECT: |
| a687059c |
443 | tmps = stab_name(defoutstab); |
| 444 | if (maxarg > 0) { |
| 445 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 446 | defoutstab = arg[1].arg_ptr.arg_stab; |
| 447 | else |
| 448 | defoutstab = stabent(str_get(st[1]),TRUE); |
| 449 | if (!stab_io(defoutstab)) |
| 450 | stab_io(defoutstab) = stio_new(); |
| 451 | curoutstab = defoutstab; |
| 452 | } |
| 453 | str_set(str, tmps); |
| 378cc40b |
454 | STABSET(str); |
| 455 | break; |
| 456 | case O_WRITE: |
| 457 | if (maxarg == 0) |
| 458 | stab = defoutstab; |
| a687059c |
459 | else if ((arg[1].arg_type & A_MASK) == A_WORD) { |
| 460 | if (!(stab = arg[1].arg_ptr.arg_stab)) |
| 461 | stab = defoutstab; |
| 462 | } |
| 378cc40b |
463 | else |
| a687059c |
464 | stab = stabent(str_get(st[1]),TRUE); |
| 465 | if (!stab_io(stab)) { |
| 378cc40b |
466 | str_set(str, No); |
| 467 | STABSET(str); |
| 468 | break; |
| 469 | } |
| 470 | curoutstab = stab; |
| a687059c |
471 | fp = stab_io(stab)->ofp; |
| 378cc40b |
472 | debarg = arg; |
| a687059c |
473 | if (stab_io(stab)->fmt_stab) |
| 474 | form = stab_form(stab_io(stab)->fmt_stab); |
| 378cc40b |
475 | else |
| a687059c |
476 | form = stab_form(stab); |
| 378cc40b |
477 | if (!form || !fp) { |
| a687059c |
478 | if (dowarn) { |
| 479 | if (form) |
| 480 | warn("No format for filehandle"); |
| 481 | else { |
| 482 | if (stab_io(stab)->ifp) |
| 483 | warn("Filehandle only opened for input"); |
| 484 | else |
| 485 | warn("Write on closed filehandle"); |
| 486 | } |
| 487 | } |
| 378cc40b |
488 | str_set(str, No); |
| 489 | STABSET(str); |
| 490 | break; |
| 491 | } |
| a687059c |
492 | format(&outrec,form,sp); |
| 493 | do_write(&outrec,stab_io(stab),sp); |
| 494 | if (stab_io(stab)->flags & IOF_FLUSH) |
| 495 | (void)fflush(fp); |
| 378cc40b |
496 | str_set(str, Yes); |
| 497 | STABSET(str); |
| 498 | break; |
| a687059c |
499 | case O_DBMOPEN: |
| 500 | #ifdef SOME_DBM |
| 501 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 502 | stab = arg[1].arg_ptr.arg_stab; |
| 503 | else |
| 504 | stab = stabent(str_get(st[1]),TRUE); |
| 505 | anum = (int)str_gnum(st[3]); |
| 506 | value = (double)hdbmopen(stab_hash(stab),str_get(st[2]),anum); |
| 507 | goto donumset; |
| 508 | #else |
| 509 | fatal("No dbm or ndbm on this machine"); |
| 510 | #endif |
| 511 | case O_DBMCLOSE: |
| 512 | #ifdef SOME_DBM |
| 513 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 514 | stab = arg[1].arg_ptr.arg_stab; |
| 515 | else |
| 516 | stab = stabent(str_get(st[1]),TRUE); |
| 517 | hdbmclose(stab_hash(stab)); |
| 518 | goto say_yes; |
| 519 | #else |
| 520 | fatal("No dbm or ndbm on this machine"); |
| 521 | #endif |
| 378cc40b |
522 | case O_OPEN: |
| a687059c |
523 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 378cc40b |
524 | stab = arg[1].arg_ptr.arg_stab; |
| 525 | else |
| a687059c |
526 | stab = stabent(str_get(st[1]),TRUE); |
| afd9f252 |
527 | tmps = str_get(st[2]); |
| 528 | if (do_open(stab,tmps,st[2]->str_cur)) { |
| 378cc40b |
529 | value = (double)forkprocess; |
| a687059c |
530 | stab_io(stab)->lines = 0; |
| 378cc40b |
531 | goto donumset; |
| 532 | } |
| afd9f252 |
533 | else if (forkprocess == 0) /* we are a new child */ |
| 534 | goto say_zero; |
| 378cc40b |
535 | else |
| a687059c |
536 | goto say_undef; |
| 378cc40b |
537 | break; |
| 538 | case O_TRANS: |
| 539 | value = (double) do_trans(str,arg); |
| 540 | str = arg->arg_ptr.arg_str; |
| 541 | goto donumset; |
| 542 | case O_NTRANS: |
| 543 | str_set(arg->arg_ptr.arg_str, do_trans(str,arg) == 0 ? Yes : No); |
| 544 | str = arg->arg_ptr.arg_str; |
| 545 | break; |
| 546 | case O_CLOSE: |
| a687059c |
547 | if (maxarg == 0) |
| 548 | stab = defoutstab; |
| 549 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 378cc40b |
550 | stab = arg[1].arg_ptr.arg_stab; |
| 551 | else |
| a687059c |
552 | stab = stabent(str_get(st[1]),TRUE); |
| 378cc40b |
553 | str_set(str, do_close(stab,TRUE) ? Yes : No ); |
| 554 | STABSET(str); |
| 555 | break; |
| 556 | case O_EACH: |
| a687059c |
557 | sp = do_each(str,stab_hash(arg[1].arg_ptr.arg_stab), |
| 558 | gimme,arglast); |
| 559 | goto array_return; |
| 378cc40b |
560 | case O_VALUES: |
| 561 | case O_KEYS: |
| a687059c |
562 | sp = do_kv(str,stab_hash(arg[1].arg_ptr.arg_stab), optype, |
| 563 | gimme,arglast); |
| 564 | goto array_return; |
| 565 | case O_LARRAY: |
| 566 | str->str_nok = str->str_pok = 0; |
| 567 | str->str_u.str_stab = arg[1].arg_ptr.arg_stab; |
| 568 | str->str_state = SS_ARY; |
| 569 | break; |
| 378cc40b |
570 | case O_ARRAY: |
| a687059c |
571 | ary = stab_array(arg[1].arg_ptr.arg_stab); |
| 572 | maxarg = ary->ary_fill + 1; |
| 573 | if (gimme == G_ARRAY) { /* array wanted */ |
| 574 | sp = arglast[0]; |
| 575 | st -= sp; |
| 576 | if (maxarg > 0 && sp + maxarg > stack->ary_max) { |
| 577 | astore(stack,sp + maxarg, Nullstr); |
| 578 | st = stack->ary_array; |
| 378cc40b |
579 | } |
| a687059c |
580 | Copy(ary->ary_array, &st[sp+1], maxarg, STR*); |
| 581 | sp += maxarg; |
| 582 | goto array_return; |
| 378cc40b |
583 | } |
| afd9f252 |
584 | else { |
| 585 | value = (double)maxarg; |
| 586 | goto donumset; |
| 587 | } |
| a687059c |
588 | case O_AELEM: |
| 0d3e774c |
589 | anum = ((int)str_gnum(st[2])) - arybase; |
| 590 | str = afetch(stab_array(arg[1].arg_ptr.arg_stab),anum,FALSE); |
| 378cc40b |
591 | if (!str) |
| a687059c |
592 | goto say_undef; |
| 378cc40b |
593 | break; |
| 594 | case O_DELETE: |
| a687059c |
595 | tmpstab = arg[1].arg_ptr.arg_stab; |
| 596 | tmps = str_get(st[2]); |
| 597 | str = hdelete(stab_hash(tmpstab),tmps,st[2]->str_cur); |
| 598 | if (tmpstab == envstab) |
| 599 | setenv(tmps,Nullch); |
| 378cc40b |
600 | if (!str) |
| a687059c |
601 | goto say_undef; |
| 602 | break; |
| 603 | case O_LHASH: |
| 604 | str->str_nok = str->str_pok = 0; |
| 605 | str->str_u.str_stab = arg[1].arg_ptr.arg_stab; |
| 606 | str->str_state = SS_HASH; |
| 378cc40b |
607 | break; |
| 608 | case O_HASH: |
| a687059c |
609 | if (gimme == G_ARRAY) { /* array wanted */ |
| 610 | sp = do_kv(str,stab_hash(arg[1].arg_ptr.arg_stab), optype, |
| 611 | gimme,arglast); |
| 612 | goto array_return; |
| 613 | } |
| 614 | else { |
| 615 | tmpstab = arg[1].arg_ptr.arg_stab; |
| 616 | sprintf(buf,"%d/%d",stab_hash(tmpstab)->tbl_fill, |
| 617 | stab_hash(tmpstab)->tbl_max+1); |
| 618 | str_set(str,buf); |
| 619 | } |
| 620 | break; |
| 621 | case O_HELEM: |
| 622 | tmpstab = arg[1].arg_ptr.arg_stab; |
| 623 | tmps = str_get(st[2]); |
| 624 | str = hfetch(stab_hash(tmpstab),tmps,st[2]->str_cur,FALSE); |
| 378cc40b |
625 | if (!str) |
| a687059c |
626 | goto say_undef; |
| 378cc40b |
627 | break; |
| a687059c |
628 | case O_LAELEM: |
| 629 | anum = ((int)str_gnum(st[2])) - arybase; |
| 630 | str = afetch(stab_array(arg[1].arg_ptr.arg_stab),anum,TRUE); |
| 631 | if (!str) |
| 632 | fatal("Assignment to non-creatable value, subscript %d",anum); |
| 378cc40b |
633 | break; |
| a687059c |
634 | case O_LHELEM: |
| 635 | tmpstab = arg[1].arg_ptr.arg_stab; |
| 636 | tmps = str_get(st[2]); |
| 637 | anum = st[2]->str_cur; |
| 638 | str = hfetch(stab_hash(tmpstab),tmps,anum,TRUE); |
| 639 | if (!str) |
| 640 | fatal("Assignment to non-creatable value, subscript \"%s\"",tmps); |
| 641 | if (tmpstab == envstab) /* heavy wizardry going on here */ |
| 642 | str_magic(str, tmpstab, 'E', tmps, anum); /* str is now magic */ |
| 378cc40b |
643 | /* he threw the brick up into the air */ |
| a687059c |
644 | else if (tmpstab == sigstab) |
| 645 | str_magic(str, tmpstab, 'S', tmps, anum); |
| 646 | #ifdef SOME_DBM |
| 647 | else if (stab_hash(tmpstab)->tbl_dbm) |
| 648 | str_magic(str, tmpstab, 'D', tmps, anum); |
| 649 | #endif |
| 378cc40b |
650 | break; |
| 79a0689e |
651 | case O_LSLICE: |
| 652 | anum = 2; |
| 653 | argtype = FALSE; |
| 654 | goto do_slice_already; |
| a687059c |
655 | case O_ASLICE: |
| 79a0689e |
656 | anum = 1; |
| a687059c |
657 | argtype = FALSE; |
| 658 | goto do_slice_already; |
| 659 | case O_HSLICE: |
| 79a0689e |
660 | anum = 0; |
| a687059c |
661 | argtype = FALSE; |
| 662 | goto do_slice_already; |
| 663 | case O_LASLICE: |
| 79a0689e |
664 | anum = 1; |
| a687059c |
665 | argtype = TRUE; |
| 666 | goto do_slice_already; |
| 667 | case O_LHSLICE: |
| 79a0689e |
668 | anum = 0; |
| a687059c |
669 | argtype = TRUE; |
| 670 | do_slice_already: |
| 79a0689e |
671 | sp = do_slice(arg[1].arg_ptr.arg_stab,str,anum,argtype, |
| a687059c |
672 | gimme,arglast); |
| 673 | goto array_return; |
| 79a0689e |
674 | case O_SPLICE: |
| 675 | sp = do_splice(stab_array(arg[1].arg_ptr.arg_stab),str,gimme,arglast); |
| 676 | goto array_return; |
| 378cc40b |
677 | case O_PUSH: |
| a687059c |
678 | if (arglast[2] - arglast[1] != 1) |
| 679 | str = do_push(stab_array(arg[1].arg_ptr.arg_stab),arglast); |
| 378cc40b |
680 | else { |
| a687059c |
681 | str = Str_new(51,0); /* must copy the STR */ |
| 682 | str_sset(str,st[2]); |
| 683 | (void)apush(stab_array(arg[1].arg_ptr.arg_stab),str); |
| 378cc40b |
684 | } |
| 685 | break; |
| 686 | case O_POP: |
| a687059c |
687 | str = apop(ary = stab_array(arg[1].arg_ptr.arg_stab)); |
| 688 | goto staticalization; |
| 378cc40b |
689 | case O_SHIFT: |
| a687059c |
690 | str = ashift(ary = stab_array(arg[1].arg_ptr.arg_stab)); |
| 691 | staticalization: |
| 692 | if (!str) |
| 693 | goto say_undef; |
| 694 | if (ary->ary_flags & ARF_REAL) |
| 695 | (void)str_2static(str); |
| 378cc40b |
696 | break; |
| a687059c |
697 | case O_UNPACK: |
| 698 | sp = do_unpack(str,gimme,arglast); |
| 699 | goto array_return; |
| 378cc40b |
700 | case O_SPLIT: |
| a687059c |
701 | value = str_gnum(st[3]); |
| 702 | sp = do_split(str, arg[2].arg_ptr.arg_spat, (int)value, |
| 703 | gimme,arglast); |
| 704 | goto array_return; |
| 378cc40b |
705 | case O_LENGTH: |
| a687059c |
706 | if (maxarg < 1) |
| 707 | value = (double)str_len(stab_val(defstab)); |
| 708 | else |
| 709 | value = (double)str_len(st[1]); |
| 378cc40b |
710 | goto donumset; |
| 711 | case O_SPRINTF: |
| a687059c |
712 | do_sprintf(str, sp-arglast[0], st+1); |
| 378cc40b |
713 | break; |
| 714 | case O_SUBSTR: |
| a687059c |
715 | anum = ((int)str_gnum(st[2])) - arybase; /* anum=where to start*/ |
| 716 | tmps = str_get(st[1]); /* force conversion to string */ |
| 717 | if (argtype = (str == st[1])) |
| 718 | str = arg->arg_ptr.arg_str; |
| 719 | if (anum < 0) |
| 720 | anum += st[1]->str_cur + arybase; |
| 721 | if (anum < 0 || anum > st[1]->str_cur) |
| 722 | str_nset(str,"",0); |
| 723 | else { |
| 724 | optype = (int)str_gnum(st[3]); |
| 725 | if (optype < 0) |
| 726 | optype = 0; |
| 727 | tmps += anum; |
| 728 | anum = st[1]->str_cur - anum; /* anum=how many bytes left*/ |
| 729 | if (anum > optype) |
| 730 | anum = optype; |
| 378cc40b |
731 | str_nset(str, tmps, anum); |
| a687059c |
732 | if (argtype) { /* it's an lvalue! */ |
| 733 | lstr = (struct lstring*)str; |
| 734 | str->str_magic = st[1]; |
| 735 | st[1]->str_rare = 's'; |
| 736 | lstr->lstr_offset = tmps - str_get(st[1]); |
| 737 | lstr->lstr_len = anum; |
| 738 | } |
| 739 | } |
| 740 | break; |
| 741 | case O_PACK: |
| 742 | (void)do_pack(str,arglast); |
| 378cc40b |
743 | break; |
| a687059c |
744 | case O_GREP: |
| 745 | sp = do_grep(arg,str,gimme,arglast); |
| 746 | goto array_return; |
| 378cc40b |
747 | case O_JOIN: |
| a687059c |
748 | do_join(str,arglast); |
| 378cc40b |
749 | break; |
| 750 | case O_SLT: |
| a687059c |
751 | tmps = str_get(st[1]); |
| 752 | value = (double) (str_cmp(st[1],st[2]) < 0); |
| 378cc40b |
753 | goto donumset; |
| 754 | case O_SGT: |
| a687059c |
755 | tmps = str_get(st[1]); |
| 756 | value = (double) (str_cmp(st[1],st[2]) > 0); |
| 378cc40b |
757 | goto donumset; |
| 758 | case O_SLE: |
| a687059c |
759 | tmps = str_get(st[1]); |
| 760 | value = (double) (str_cmp(st[1],st[2]) <= 0); |
| 378cc40b |
761 | goto donumset; |
| 762 | case O_SGE: |
| a687059c |
763 | tmps = str_get(st[1]); |
| 764 | value = (double) (str_cmp(st[1],st[2]) >= 0); |
| 378cc40b |
765 | goto donumset; |
| 766 | case O_SEQ: |
| a687059c |
767 | tmps = str_get(st[1]); |
| 768 | value = (double) str_eq(st[1],st[2]); |
| 378cc40b |
769 | goto donumset; |
| 770 | case O_SNE: |
| a687059c |
771 | tmps = str_get(st[1]); |
| 772 | value = (double) !str_eq(st[1],st[2]); |
| 378cc40b |
773 | goto donumset; |
| 774 | case O_SUBR: |
| a687059c |
775 | sp = do_subr(arg,gimme,arglast); |
| 776 | st = stack->ary_array + arglast[0]; /* maybe realloced */ |
| 777 | goto array_return; |
| 778 | case O_DBSUBR: |
| 779 | sp = do_dbsubr(arg,gimme,arglast); |
| 780 | st = stack->ary_array + arglast[0]; /* maybe realloced */ |
| 781 | goto array_return; |
| 378cc40b |
782 | case O_SORT: |
| a687059c |
783 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 784 | stab = arg[1].arg_ptr.arg_stab; |
| 785 | else |
| 786 | stab = stabent(str_get(st[1]),TRUE); |
| 787 | if (!stab) |
| 378cc40b |
788 | stab = defoutstab; |
| a687059c |
789 | sp = do_sort(str,stab, |
| 790 | gimme,arglast); |
| 791 | goto array_return; |
| 792 | case O_REVERSE: |
| 793 | sp = do_reverse(str, |
| 794 | gimme,arglast); |
| 795 | goto array_return; |
| 796 | case O_WARN: |
| 797 | if (arglast[2] - arglast[1] != 1) { |
| 798 | do_join(str,arglast); |
| 799 | tmps = str_get(st[1]); |
| 800 | } |
| 378cc40b |
801 | else { |
| a687059c |
802 | str = st[2]; |
| 803 | tmps = str_get(st[2]); |
| 378cc40b |
804 | } |
| a687059c |
805 | if (!tmps || !*tmps) |
| 806 | tmps = "Warning: something's wrong"; |
| 807 | warn("%s",tmps); |
| 808 | goto say_yes; |
| 809 | case O_DIE: |
| 810 | if (arglast[2] - arglast[1] != 1) { |
| 811 | do_join(str,arglast); |
| 812 | tmps = str_get(st[1]); |
| 378cc40b |
813 | } |
| a687059c |
814 | else { |
| 815 | str = st[2]; |
| 816 | tmps = str_get(st[2]); |
| 817 | } |
| 818 | if (!tmps || !*tmps) |
| 819 | exit(1); |
| 820 | fatal("%s",tmps); |
| 821 | goto say_zero; |
| 378cc40b |
822 | case O_PRTF: |
| 823 | case O_PRINT: |
| a687059c |
824 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 825 | stab = arg[1].arg_ptr.arg_stab; |
| 826 | else |
| 827 | stab = stabent(str_get(st[1]),TRUE); |
| 828 | if (!stab) |
| 378cc40b |
829 | stab = defoutstab; |
| a687059c |
830 | if (!stab_io(stab)) { |
| 831 | if (dowarn) |
| 832 | warn("Filehandle never opened"); |
| 833 | goto say_zero; |
| 834 | } |
| 835 | if (!(fp = stab_io(stab)->ofp)) { |
| 836 | if (dowarn) { |
| 837 | if (stab_io(stab)->ifp) |
| 838 | warn("Filehandle opened only for input"); |
| 839 | else |
| 840 | warn("Print on closed filehandle"); |
| 841 | } |
| 842 | goto say_zero; |
| 378cc40b |
843 | } |
| 378cc40b |
844 | else { |
| a687059c |
845 | if (optype == O_PRTF || arglast[2] - arglast[1] != 1) |
| 846 | value = (double)do_aprint(arg,fp,arglast); |
| 378cc40b |
847 | else { |
| a687059c |
848 | value = (double)do_print(st[2],fp); |
| 849 | if (orslen && optype == O_PRINT) |
| 850 | if (fwrite(ors, 1, orslen, fp) == 0) |
| 851 | goto say_zero; |
| 378cc40b |
852 | } |
| a687059c |
853 | if (stab_io(stab)->flags & IOF_FLUSH) |
| 854 | if (fflush(fp) == EOF) |
| 855 | goto say_zero; |
| 378cc40b |
856 | } |
| 857 | goto donumset; |
| 858 | case O_CHDIR: |
| a687059c |
859 | if (maxarg < 1) |
| afd9f252 |
860 | tmps = Nullch; |
| a687059c |
861 | else |
| 862 | tmps = str_get(st[1]); |
| 863 | if (!tmps || !*tmps) { |
| 864 | tmpstr = hfetch(stab_hash(envstab),"HOME",4,FALSE); |
| 865 | if (tmpstr) |
| 866 | tmps = str_get(tmpstr); |
| 867 | } |
| 868 | if (!tmps || !*tmps) { |
| 869 | tmpstr = hfetch(stab_hash(envstab),"LOGDIR",6,FALSE); |
| 870 | if (tmpstr) |
| 871 | tmps = str_get(tmpstr); |
| 872 | } |
| 873 | #ifdef TAINT |
| 874 | taintproper("Insecure dependency in chdir"); |
| 875 | #endif |
| 378cc40b |
876 | value = (double)(chdir(tmps) >= 0); |
| 877 | goto donumset; |
| 378cc40b |
878 | case O_EXIT: |
| a687059c |
879 | if (maxarg < 1) |
| 880 | anum = 0; |
| 881 | else |
| 882 | anum = (int)str_gnum(st[1]); |
| 883 | exit(anum); |
| 884 | goto say_zero; |
| 378cc40b |
885 | case O_RESET: |
| a687059c |
886 | if (maxarg < 1) |
| 887 | tmps = ""; |
| 888 | else |
| 889 | tmps = str_get(st[1]); |
| 890 | str_reset(tmps,arg[2].arg_ptr.arg_hash); |
| 378cc40b |
891 | value = 1.0; |
| 892 | goto donumset; |
| 893 | case O_LIST: |
| a687059c |
894 | if (gimme == G_ARRAY) |
| 895 | goto array_return; |
| 378cc40b |
896 | if (maxarg > 0) |
| a687059c |
897 | str = st[sp - arglast[0]]; /* unwanted list, return last item */ |
| 378cc40b |
898 | else |
| a687059c |
899 | str = &str_undef; |
| 378cc40b |
900 | break; |
| 901 | case O_EOF: |
| 902 | if (maxarg <= 0) |
| 903 | stab = last_in_stab; |
| a687059c |
904 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 378cc40b |
905 | stab = arg[1].arg_ptr.arg_stab; |
| 906 | else |
| a687059c |
907 | stab = stabent(str_get(st[1]),TRUE); |
| 378cc40b |
908 | str_set(str, do_eof(stab) ? Yes : No); |
| 909 | STABSET(str); |
| 910 | break; |
| a687059c |
911 | case O_GETC: |
| 378cc40b |
912 | if (maxarg <= 0) |
| a687059c |
913 | stab = stdinstab; |
| 914 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 378cc40b |
915 | stab = arg[1].arg_ptr.arg_stab; |
| 916 | else |
| a687059c |
917 | stab = stabent(str_get(st[1]),TRUE); |
| 918 | if (do_eof(stab)) /* make sure we have fp with something */ |
| 919 | str_set(str, No); |
| 920 | else { |
| 921 | #ifdef TAINT |
| 922 | tainted = 1; |
| 923 | #endif |
| 924 | str_set(str," "); |
| 925 | *str->str_ptr = getc(stab_io(stab)->ifp); /* should never be EOF */ |
| 926 | } |
| 927 | STABSET(str); |
| 928 | break; |
| 929 | case O_TELL: |
| 930 | if (maxarg <= 0) |
| 931 | stab = last_in_stab; |
| 932 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 933 | stab = arg[1].arg_ptr.arg_stab; |
| 934 | else |
| 935 | stab = stabent(str_get(st[1]),TRUE); |
| 936 | #ifndef lint |
| 937 | value = (double)do_tell(stab); |
| 938 | #else |
| 939 | (void)do_tell(stab); |
| 940 | #endif |
| 941 | goto donumset; |
| 942 | case O_RECV: |
| 943 | case O_READ: |
| 944 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 945 | stab = arg[1].arg_ptr.arg_stab; |
| 946 | else |
| 947 | stab = stabent(str_get(st[1]),TRUE); |
| 948 | tmps = str_get(st[2]); |
| 949 | anum = (int)str_gnum(st[3]); |
| 950 | STR_GROW(st[2], anum+1), (tmps = str_get(st[2])); /* sneaky */ |
| 951 | errno = 0; |
| 952 | if (!stab_io(stab) || !stab_io(stab)->ifp) |
| 953 | goto say_zero; |
| 954 | #ifdef SOCKET |
| 955 | else if (optype == O_RECV) { |
| 956 | argtype = sizeof buf; |
| 957 | optype = (int)str_gnum(st[4]); |
| 958 | anum = recvfrom(fileno(stab_io(stab)->ifp), tmps, anum, optype, |
| 959 | buf, &argtype); |
| 960 | if (anum >= 0) { |
| 961 | st[2]->str_cur = anum; |
| 962 | st[2]->str_ptr[anum] = '\0'; |
| 963 | str_nset(str,buf,argtype); |
| 964 | } |
| 965 | else |
| 966 | str_sset(str,&str_undef); |
| 967 | break; |
| 968 | } |
| 969 | else if (stab_io(stab)->type == 's') { |
| 970 | argtype = sizeof buf; |
| 971 | anum = recvfrom(fileno(stab_io(stab)->ifp), tmps, anum, 0, |
| 972 | buf, &argtype); |
| 973 | } |
| 974 | #else |
| 975 | else if (optype == O_RECV) |
| 976 | goto badsock; |
| 977 | #endif |
| 978 | else |
| 979 | anum = fread(tmps, 1, anum, stab_io(stab)->ifp); |
| 980 | if (anum < 0) |
| 981 | goto say_undef; |
| 982 | st[2]->str_cur = anum; |
| 983 | st[2]->str_ptr[anum] = '\0'; |
| 984 | value = (double)anum; |
| 985 | goto donumset; |
| 986 | case O_SEND: |
| 987 | #ifdef SOCKET |
| 988 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 989 | stab = arg[1].arg_ptr.arg_stab; |
| 990 | else |
| 991 | stab = stabent(str_get(st[1]),TRUE); |
| 992 | tmps = str_get(st[2]); |
| 993 | anum = (int)str_gnum(st[3]); |
| 994 | optype = sp - arglast[0]; |
| 995 | errno = 0; |
| 996 | if (optype > 4) |
| 997 | warn("Too many args on send"); |
| 663a0e37 |
998 | stio = stab_io(stab); |
| 999 | if (!stio || !stio->ifp) { |
| 1000 | anum = -1; |
| 1001 | if (dowarn) |
| 1002 | warn("Send on closed socket"); |
| 1003 | } |
| 1004 | else if (optype >= 4) { |
| a687059c |
1005 | tmps2 = str_get(st[4]); |
| 1006 | anum = sendto(fileno(stab_io(stab)->ifp), tmps, st[2]->str_cur, |
| 1007 | anum, tmps2, st[4]->str_cur); |
| 1008 | } |
| 1009 | else |
| 1010 | anum = send(fileno(stab_io(stab)->ifp), tmps, st[2]->str_cur, anum); |
| 1011 | if (anum < 0) |
| 1012 | goto say_undef; |
| 1013 | value = (double)anum; |
| 1014 | goto donumset; |
| 1015 | #else |
| 1016 | goto badsock; |
| 1017 | #endif |
| 1018 | case O_SEEK: |
| 1019 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1020 | stab = arg[1].arg_ptr.arg_stab; |
| 378cc40b |
1021 | else |
| a687059c |
1022 | stab = stabent(str_get(st[1]),TRUE); |
| 1023 | value = str_gnum(st[2]); |
| 378cc40b |
1024 | str_set(str, do_seek(stab, |
| a687059c |
1025 | (long)value, (int)str_gnum(st[3]) ) ? Yes : No); |
| 378cc40b |
1026 | STABSET(str); |
| 1027 | break; |
| a687059c |
1028 | case O_RETURN: |
| afd9f252 |
1029 | tmps = "_SUB_"; /* just fake up a "last _SUB_" */ |
| a687059c |
1030 | optype = O_LAST; |
| afd9f252 |
1031 | if (wantarray == G_ARRAY) { |
| a687059c |
1032 | lastretstr = Nullstr; |
| 1033 | lastspbase = arglast[1]; |
| 1034 | lastsize = arglast[2] - arglast[1]; |
| 1035 | } |
| 1036 | else |
| 1037 | lastretstr = str_static(st[arglast[2] - arglast[0]]); |
| 1038 | goto dopop; |
| 378cc40b |
1039 | case O_REDO: |
| 1040 | case O_NEXT: |
| 1041 | case O_LAST: |
| 1042 | if (maxarg > 0) { |
| a687059c |
1043 | tmps = str_get(arg[1].arg_ptr.arg_str); |
| 1044 | dopop: |
| 378cc40b |
1045 | while (loop_ptr >= 0 && (!loop_stack[loop_ptr].loop_label || |
| 1046 | strNE(tmps,loop_stack[loop_ptr].loop_label) )) { |
| 1047 | #ifdef DEBUGGING |
| 1048 | if (debug & 4) { |
| 1049 | deb("(Skipping label #%d %s)\n",loop_ptr, |
| 1050 | loop_stack[loop_ptr].loop_label); |
| 1051 | } |
| 1052 | #endif |
| 1053 | loop_ptr--; |
| 1054 | } |
| 1055 | #ifdef DEBUGGING |
| 1056 | if (debug & 4) { |
| 1057 | deb("(Found label #%d %s)\n",loop_ptr, |
| 1058 | loop_stack[loop_ptr].loop_label); |
| 1059 | } |
| 1060 | #endif |
| 1061 | } |
| 1062 | if (loop_ptr < 0) |
| 1063 | fatal("Bad label: %s", maxarg > 0 ? tmps : "<null>"); |
| a687059c |
1064 | if (!lastretstr && optype == O_LAST && lastsize) { |
| 1065 | st -= arglast[0]; |
| 1066 | st += lastspbase + 1; |
| 1067 | optype = loop_stack[loop_ptr].loop_sp - lastspbase; /* negative */ |
| 1068 | if (optype) { |
| 1069 | for (anum = lastsize; anum > 0; anum--,st++) |
| 1070 | st[optype] = str_static(st[0]); |
| 1071 | } |
| 1072 | longjmp(loop_stack[loop_ptr].loop_env, O_LAST); |
| 1073 | } |
| 378cc40b |
1074 | longjmp(loop_stack[loop_ptr].loop_env, optype); |
| a687059c |
1075 | case O_DUMP: |
| 378cc40b |
1076 | case O_GOTO:/* shudder */ |
| a687059c |
1077 | goto_targ = str_get(arg[1].arg_ptr.arg_str); |
| 1078 | if (!*goto_targ) |
| 1079 | goto_targ = Nullch; /* just restart from top */ |
| 1080 | if (optype == O_DUMP) { |
| 1081 | do_undump = 1; |
| 1082 | abort(); |
| 1083 | } |
| 378cc40b |
1084 | longjmp(top_env, 1); |
| 1085 | case O_INDEX: |
| a687059c |
1086 | tmps = str_get(st[1]); |
| 1087 | #ifndef lint |
| 1088 | if (!(tmps2 = fbminstr((unsigned char*)tmps, |
| 1089 | (unsigned char*)tmps + st[1]->str_cur, st[2]))) |
| 1090 | #else |
| 1091 | if (tmps2 = fbminstr(Null(unsigned char*),Null(unsigned char*),Nullstr)) |
| 1092 | #endif |
| 1093 | value = (double)(-1 + arybase); |
| 1094 | else |
| 1095 | value = (double)(tmps2 - tmps + arybase); |
| 1096 | goto donumset; |
| 1097 | case O_RINDEX: |
| 1098 | tmps = str_get(st[1]); |
| 1099 | tmps2 = str_get(st[2]); |
| 1100 | #ifndef lint |
| 1101 | if (!(tmps2 = rninstr(tmps, tmps + st[1]->str_cur, |
| 1102 | tmps2, tmps2 + st[2]->str_cur))) |
| 1103 | #else |
| 1104 | if (tmps2 = rninstr(Nullch,Nullch,Nullch,Nullch)) |
| 1105 | #endif |
| 378cc40b |
1106 | value = (double)(-1 + arybase); |
| 1107 | else |
| 1108 | value = (double)(tmps2 - tmps + arybase); |
| 1109 | goto donumset; |
| 1110 | case O_TIME: |
| a687059c |
1111 | #ifndef lint |
| 378cc40b |
1112 | value = (double) time(Null(long*)); |
| a687059c |
1113 | #endif |
| 378cc40b |
1114 | goto donumset; |
| 1115 | case O_TMS: |
| a687059c |
1116 | sp = do_tms(str,gimme,arglast); |
| 1117 | goto array_return; |
| 378cc40b |
1118 | case O_LOCALTIME: |
| a687059c |
1119 | if (maxarg < 1) |
| 1120 | (void)time(&when); |
| 1121 | else |
| 1122 | when = (long)str_gnum(st[1]); |
| 1123 | sp = do_time(str,localtime(&when), |
| 1124 | gimme,arglast); |
| 1125 | goto array_return; |
| 378cc40b |
1126 | case O_GMTIME: |
| a687059c |
1127 | if (maxarg < 1) |
| 1128 | (void)time(&when); |
| 1129 | else |
| 1130 | when = (long)str_gnum(st[1]); |
| 1131 | sp = do_time(str,gmtime(&when), |
| 1132 | gimme,arglast); |
| 1133 | goto array_return; |
| 1134 | case O_LSTAT: |
| 378cc40b |
1135 | case O_STAT: |
| a687059c |
1136 | sp = do_stat(str,arg, |
| 1137 | gimme,arglast); |
| 1138 | goto array_return; |
| 378cc40b |
1139 | case O_CRYPT: |
| 1140 | #ifdef CRYPT |
| a687059c |
1141 | tmps = str_get(st[1]); |
| 1142 | #ifdef FCRYPT |
| 1143 | str_set(str,fcrypt(tmps,str_get(st[2]))); |
| 1144 | #else |
| 1145 | str_set(str,crypt(tmps,str_get(st[2]))); |
| 1146 | #endif |
| 378cc40b |
1147 | #else |
| 1148 | fatal( |
| 1149 | "The crypt() function is unimplemented due to excessive paranoia."); |
| 1150 | #endif |
| 1151 | break; |
| a687059c |
1152 | case O_ATAN2: |
| 1153 | value = str_gnum(st[1]); |
| 1154 | value = atan2(value,str_gnum(st[2])); |
| 1155 | goto donumset; |
| 1156 | case O_SIN: |
| 1157 | if (maxarg < 1) |
| 1158 | value = str_gnum(stab_val(defstab)); |
| 1159 | else |
| 1160 | value = str_gnum(st[1]); |
| 1161 | value = sin(value); |
| 1162 | goto donumset; |
| 1163 | case O_COS: |
| 1164 | if (maxarg < 1) |
| 1165 | value = str_gnum(stab_val(defstab)); |
| 1166 | else |
| 1167 | value = str_gnum(st[1]); |
| 1168 | value = cos(value); |
| 1169 | goto donumset; |
| 1170 | case O_RAND: |
| 1171 | if (maxarg < 1) |
| 1172 | value = 1.0; |
| 1173 | else |
| 1174 | value = str_gnum(st[1]); |
| 1175 | if (value == 0.0) |
| 1176 | value = 1.0; |
| 1177 | #if RANDBITS == 31 |
| 1178 | value = rand() * value / 2147483648.0; |
| 1179 | #else |
| 1180 | #if RANDBITS == 16 |
| 1181 | value = rand() * value / 65536.0; |
| 1182 | #else |
| 1183 | #if RANDBITS == 15 |
| 1184 | value = rand() * value / 32768.0; |
| 1185 | #else |
| 1186 | value = rand() * value / (double)(((unsigned long)1) << RANDBITS); |
| 1187 | #endif |
| 1188 | #endif |
| 1189 | #endif |
| 1190 | goto donumset; |
| 1191 | case O_SRAND: |
| 1192 | if (maxarg < 1) { |
| 1193 | (void)time(&when); |
| 1194 | anum = when; |
| 1195 | } |
| 1196 | else |
| 1197 | anum = (int)str_gnum(st[1]); |
| 1198 | (void)srand(anum); |
| 1199 | goto say_yes; |
| 378cc40b |
1200 | case O_EXP: |
| a687059c |
1201 | if (maxarg < 1) |
| 1202 | value = str_gnum(stab_val(defstab)); |
| 1203 | else |
| 1204 | value = str_gnum(st[1]); |
| 1205 | value = exp(value); |
| 378cc40b |
1206 | goto donumset; |
| 1207 | case O_LOG: |
| a687059c |
1208 | if (maxarg < 1) |
| 1209 | value = str_gnum(stab_val(defstab)); |
| 1210 | else |
| 1211 | value = str_gnum(st[1]); |
| 1212 | value = log(value); |
| 378cc40b |
1213 | goto donumset; |
| 1214 | case O_SQRT: |
| a687059c |
1215 | if (maxarg < 1) |
| 1216 | value = str_gnum(stab_val(defstab)); |
| 1217 | else |
| 1218 | value = str_gnum(st[1]); |
| 1219 | value = sqrt(value); |
| 378cc40b |
1220 | goto donumset; |
| 1221 | case O_INT: |
| a687059c |
1222 | if (maxarg < 1) |
| 1223 | value = str_gnum(stab_val(defstab)); |
| 1224 | else |
| 1225 | value = str_gnum(st[1]); |
| 378cc40b |
1226 | if (value >= 0.0) |
| a687059c |
1227 | (void)modf(value,&value); |
| 378cc40b |
1228 | else { |
| a687059c |
1229 | (void)modf(-value,&value); |
| 378cc40b |
1230 | value = -value; |
| 1231 | } |
| 1232 | goto donumset; |
| 1233 | case O_ORD: |
| a687059c |
1234 | if (maxarg < 1) |
| 1235 | tmps = str_get(stab_val(defstab)); |
| 1236 | else |
| 1237 | tmps = str_get(st[1]); |
| 1238 | #ifndef I286 |
| 663a0e37 |
1239 | value = (double) (*tmps & 255); |
| a687059c |
1240 | #else |
| 1241 | anum = (int) *tmps; |
| 663a0e37 |
1242 | value = (double) (anum & 255); |
| a687059c |
1243 | #endif |
| 378cc40b |
1244 | goto donumset; |
| 1245 | case O_SLEEP: |
| a687059c |
1246 | if (maxarg < 1) |
| 1247 | tmps = Nullch; |
| 1248 | else |
| 1249 | tmps = str_get(st[1]); |
| 1250 | (void)time(&when); |
| 378cc40b |
1251 | if (!tmps || !*tmps) |
| 1252 | sleep((32767<<16)+32767); |
| 1253 | else |
| a687059c |
1254 | sleep((unsigned int)atoi(tmps)); |
| 1255 | #ifndef lint |
| 378cc40b |
1256 | value = (double)when; |
| a687059c |
1257 | (void)time(&when); |
| 378cc40b |
1258 | value = ((double)when) - value; |
| a687059c |
1259 | #endif |
| 378cc40b |
1260 | goto donumset; |
| a687059c |
1261 | case O_RANGE: |
| 1262 | sp = do_range(gimme,arglast); |
| 1263 | goto array_return; |
| 1264 | case O_F_OR_R: |
| 1265 | if (gimme == G_ARRAY) { /* it's a range */ |
| 1266 | /* can we optimize to constant array? */ |
| 1267 | if ((arg[1].arg_type & A_MASK) == A_SINGLE && |
| 1268 | (arg[2].arg_type & A_MASK) == A_SINGLE) { |
| 1269 | st[2] = arg[2].arg_ptr.arg_str; |
| 1270 | sp = do_range(gimme,arglast); |
| 1271 | st = stack->ary_array; |
| 1272 | maxarg = sp - arglast[0]; |
| 1273 | str_free(arg[1].arg_ptr.arg_str); |
| 1274 | str_free(arg[2].arg_ptr.arg_str); |
| 1275 | arg->arg_type = O_ARRAY; |
| 1276 | arg[1].arg_type = A_STAB|A_DONT; |
| 1277 | arg->arg_len = 1; |
| 1278 | stab = arg[1].arg_ptr.arg_stab = aadd(genstab()); |
| 1279 | ary = stab_array(stab); |
| 1280 | afill(ary,maxarg - 1); |
| 1281 | st += arglast[0]+1; |
| 1282 | while (maxarg-- > 0) |
| 1283 | ary->ary_array[maxarg] = str_smake(st[maxarg]); |
| 1284 | goto array_return; |
| 1285 | } |
| 1286 | arg->arg_type = optype = O_RANGE; |
| 1287 | maxarg = arg->arg_len = 2; |
| 1288 | anum = 2; |
| 1289 | arg[anum].arg_flags &= ~AF_ARYOK; |
| 1290 | argflags = arg[anum].arg_flags; |
| 1291 | argtype = arg[anum].arg_type & A_MASK; |
| 1292 | arg[anum].arg_type = argtype; |
| 1293 | argptr = arg[anum].arg_ptr; |
| 1294 | sp = arglast[0]; |
| 1295 | st -= sp; |
| 1296 | sp++; |
| 1297 | goto re_eval; |
| 1298 | } |
| 1299 | arg->arg_type = O_FLIP; |
| 1300 | /* FALL THROUGH */ |
| 378cc40b |
1301 | case O_FLIP: |
| a687059c |
1302 | if ((arg[1].arg_type & A_MASK) == A_SINGLE ? |
| 1303 | last_in_stab && (int)str_gnum(st[1]) == stab_io(last_in_stab)->lines |
| 1304 | : |
| 1305 | str_true(st[1]) ) { |
| 378cc40b |
1306 | str_numset(str,0.0); |
| 1307 | anum = 2; |
| 1308 | arg->arg_type = optype = O_FLOP; |
| a687059c |
1309 | arg[2].arg_type &= ~A_DONT; |
| 1310 | arg[1].arg_type |= A_DONT; |
| 378cc40b |
1311 | argflags = arg[2].arg_flags; |
| a687059c |
1312 | argtype = arg[2].arg_type & A_MASK; |
| 378cc40b |
1313 | argptr = arg[2].arg_ptr; |
| a687059c |
1314 | sp = arglast[0]; |
| 1315 | st -= sp; |
| 378cc40b |
1316 | goto re_eval; |
| 1317 | } |
| 1318 | str_set(str,""); |
| 1319 | break; |
| 1320 | case O_FLOP: |
| 1321 | str_inc(str); |
| a687059c |
1322 | if ((arg[2].arg_type & A_MASK) == A_SINGLE ? |
| 1323 | last_in_stab && (int)str_gnum(st[2]) == stab_io(last_in_stab)->lines |
| 1324 | : |
| 1325 | str_true(st[2]) ) { |
| 378cc40b |
1326 | arg->arg_type = O_FLIP; |
| a687059c |
1327 | arg[1].arg_type &= ~A_DONT; |
| 1328 | arg[2].arg_type |= A_DONT; |
| 378cc40b |
1329 | str_cat(str,"E0"); |
| 1330 | } |
| 1331 | break; |
| 1332 | case O_FORK: |
| a687059c |
1333 | anum = fork(); |
| 1334 | if (!anum && (tmpstab = stabent("$",allstabs))) |
| 1335 | str_numset(STAB_STR(tmpstab),(double)getpid()); |
| 1336 | value = (double)anum; |
| 378cc40b |
1337 | goto donumset; |
| 1338 | case O_WAIT: |
| a687059c |
1339 | #ifndef lint |
| afd9f252 |
1340 | /* ihand = signal(SIGINT, SIG_IGN); */ |
| 1341 | /* qhand = signal(SIGQUIT, SIG_IGN); */ |
| a687059c |
1342 | anum = wait(&argflags); |
| 1343 | if (anum > 0) |
| 1344 | pidgone(anum,argflags); |
| 1345 | value = (double)anum; |
| 1346 | #else |
| afd9f252 |
1347 | /* ihand = qhand = 0; */ |
| a687059c |
1348 | #endif |
| afd9f252 |
1349 | /* (void)signal(SIGINT, ihand); */ |
| 1350 | /* (void)signal(SIGQUIT, qhand); */ |
| 378cc40b |
1351 | statusvalue = (unsigned short)argflags; |
| 1352 | goto donumset; |
| 1353 | case O_SYSTEM: |
| a687059c |
1354 | #ifdef TAINT |
| 1355 | if (arglast[2] - arglast[1] == 1) { |
| 1356 | taintenv(); |
| 1357 | tainted |= st[2]->str_tainted; |
| 1358 | taintproper("Insecure dependency in system"); |
| 1359 | } |
| 1360 | #endif |
| 378cc40b |
1361 | while ((anum = vfork()) == -1) { |
| 1362 | if (errno != EAGAIN) { |
| 1363 | value = -1.0; |
| 1364 | goto donumset; |
| 1365 | } |
| 1366 | sleep(5); |
| 1367 | } |
| 1368 | if (anum > 0) { |
| a687059c |
1369 | #ifndef lint |
| 378cc40b |
1370 | ihand = signal(SIGINT, SIG_IGN); |
| 1371 | qhand = signal(SIGQUIT, SIG_IGN); |
| a687059c |
1372 | while ((argtype = wait(&argflags)) != anum && argtype >= 0) |
| 1373 | pidgone(argtype,argflags); |
| 1374 | #else |
| 1375 | ihand = qhand = 0; |
| 1376 | #endif |
| 1377 | (void)signal(SIGINT, ihand); |
| 1378 | (void)signal(SIGQUIT, qhand); |
| 378cc40b |
1379 | statusvalue = (unsigned short)argflags; |
| 1380 | if (argtype == -1) |
| 1381 | value = -1.0; |
| 1382 | else { |
| 1383 | value = (double)((unsigned int)argflags & 0xffff); |
| 1384 | } |
| 1385 | goto donumset; |
| 1386 | } |
| a687059c |
1387 | if ((arg[1].arg_type & A_MASK) == A_STAB) |
| 1388 | value = (double)do_aexec(st[1],arglast); |
| 1389 | else if (arglast[2] - arglast[1] != 1) |
| 1390 | value = (double)do_aexec(Nullstr,arglast); |
| 378cc40b |
1391 | else { |
| a687059c |
1392 | value = (double)do_exec(str_get(str_static(st[2]))); |
| 378cc40b |
1393 | } |
| 1394 | _exit(-1); |
| 1395 | case O_EXEC: |
| a687059c |
1396 | if ((arg[1].arg_type & A_MASK) == A_STAB) |
| 1397 | value = (double)do_aexec(st[1],arglast); |
| 1398 | else if (arglast[2] - arglast[1] != 1) |
| 1399 | value = (double)do_aexec(Nullstr,arglast); |
| 378cc40b |
1400 | else { |
| a687059c |
1401 | value = (double)do_exec(str_get(str_static(st[2]))); |
| 378cc40b |
1402 | } |
| 1403 | goto donumset; |
| 1404 | case O_HEX: |
| 1405 | argtype = 4; |
| 1406 | goto snarfnum; |
| 1407 | |
| 1408 | case O_OCT: |
| 1409 | argtype = 3; |
| 1410 | |
| 1411 | snarfnum: |
| 1412 | anum = 0; |
| a687059c |
1413 | if (maxarg < 1) |
| 1414 | tmps = str_get(stab_val(defstab)); |
| 1415 | else |
| 1416 | tmps = str_get(st[1]); |
| 378cc40b |
1417 | for (;;) { |
| 1418 | switch (*tmps) { |
| 1419 | default: |
| 1420 | goto out; |
| 1421 | case '8': case '9': |
| 1422 | if (argtype != 4) |
| 1423 | goto out; |
| 1424 | /* FALL THROUGH */ |
| 1425 | case '0': case '1': case '2': case '3': case '4': |
| 1426 | case '5': case '6': case '7': |
| 1427 | anum <<= argtype; |
| 1428 | anum += *tmps++ & 15; |
| 1429 | break; |
| 1430 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
| 1431 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
| 1432 | if (argtype != 4) |
| 1433 | goto out; |
| 1434 | anum <<= 4; |
| 1435 | anum += (*tmps++ & 7) + 9; |
| 1436 | break; |
| 1437 | case 'x': |
| 1438 | argtype = 4; |
| 1439 | tmps++; |
| 1440 | break; |
| 1441 | } |
| 1442 | } |
| 1443 | out: |
| 1444 | value = (double)anum; |
| 1445 | goto donumset; |
| 1446 | case O_CHMOD: |
| 1447 | case O_CHOWN: |
| 1448 | case O_KILL: |
| 1449 | case O_UNLINK: |
| 1450 | case O_UTIME: |
| a687059c |
1451 | value = (double)apply(optype,arglast); |
| 378cc40b |
1452 | goto donumset; |
| 1453 | case O_UMASK: |
| a687059c |
1454 | if (maxarg < 1) { |
| 1455 | anum = umask(0); |
| 1456 | (void)umask(anum); |
| 1457 | } |
| 1458 | else |
| 1459 | anum = umask((int)str_gnum(st[1])); |
| 1460 | value = (double)anum; |
| 1461 | #ifdef TAINT |
| 1462 | taintproper("Insecure dependency in umask"); |
| 1463 | #endif |
| 378cc40b |
1464 | goto donumset; |
| 1465 | case O_RENAME: |
| a687059c |
1466 | tmps = str_get(st[1]); |
| 1467 | tmps2 = str_get(st[2]); |
| 1468 | #ifdef TAINT |
| 1469 | taintproper("Insecure dependency in rename"); |
| 1470 | #endif |
| 378cc40b |
1471 | #ifdef RENAME |
| a687059c |
1472 | value = (double)(rename(tmps,tmps2) >= 0); |
| 378cc40b |
1473 | #else |
| 378cc40b |
1474 | if (euid || stat(tmps2,&statbuf) < 0 || |
| 1475 | (statbuf.st_mode & S_IFMT) != S_IFDIR ) |
| a687059c |
1476 | (void)UNLINK(tmps2); /* avoid unlinking a directory */ |
| 378cc40b |
1477 | if (!(anum = link(tmps,tmps2))) |
| 1478 | anum = UNLINK(tmps); |
| 1479 | value = (double)(anum >= 0); |
| 1480 | #endif |
| 1481 | goto donumset; |
| 1482 | case O_LINK: |
| a687059c |
1483 | tmps = str_get(st[1]); |
| 1484 | tmps2 = str_get(st[2]); |
| 1485 | #ifdef TAINT |
| 1486 | taintproper("Insecure dependency in link"); |
| 1487 | #endif |
| 1488 | value = (double)(link(tmps,tmps2) >= 0); |
| 1489 | goto donumset; |
| 1490 | case O_MKDIR: |
| 1491 | tmps = str_get(st[1]); |
| 1492 | anum = (int)str_gnum(st[2]); |
| 1493 | #ifdef TAINT |
| 1494 | taintproper("Insecure dependency in mkdir"); |
| 1495 | #endif |
| 1496 | #ifdef MKDIR |
| 1497 | value = (double)(mkdir(tmps,anum) >= 0); |
| bf38876a |
1498 | goto donumset; |
| a687059c |
1499 | #else |
| bf38876a |
1500 | (void)strcpy(buf,"mkdir "); |
| 1501 | #endif |
| 1502 | #if !defined(MKDIR) || !defined(RMDIR) |
| a687059c |
1503 | one_liner: |
| bf38876a |
1504 | for (tmps2 = buf+6; *tmps; ) { |
| 1505 | *tmps2++ = '\\'; |
| 1506 | *tmps2++ = *tmps++; |
| 1507 | } |
| 1508 | (void)strcpy(tmps2," 2>&1"); |
| a687059c |
1509 | rsfp = mypopen(buf,"r"); |
| 1510 | if (rsfp) { |
| 1511 | *buf = '\0'; |
| 1512 | tmps2 = fgets(buf,sizeof buf,rsfp); |
| 1513 | (void)mypclose(rsfp); |
| 1514 | if (tmps2 != Nullch) { |
| bf38876a |
1515 | for (errno = 1; errno < sys_nerr; errno++) { |
| a687059c |
1516 | if (instr(buf,sys_errlist[errno])) /* you don't see this */ |
| 1517 | goto say_zero; |
| 1518 | } |
| 1519 | errno = 0; |
| bf38876a |
1520 | #ifndef EACCES |
| 1521 | #define EACCES EPERM |
| 1522 | #endif |
| 1523 | if (instr(buf,"cannot make")) |
| 1524 | errno = EEXIST; |
| 1525 | else if (instr(buf,"non-exist")) |
| 1526 | errno = ENOENT; |
| afd9f252 |
1527 | else if (instr(buf,"does not exist")) |
| 1528 | errno = ENOENT; |
| bf38876a |
1529 | else if (instr(buf,"not empty")) |
| 1530 | errno = EBUSY; |
| 1531 | else if (instr(buf,"cannot access")) |
| 1532 | errno = EACCES; |
| 1533 | else |
| 1534 | errno = EPERM; |
| a687059c |
1535 | goto say_zero; |
| 1536 | } |
| bf38876a |
1537 | else { /* some mkdirs return no failure indication */ |
| 1538 | tmps = str_get(st[1]); |
| 1539 | anum = (stat(tmps,&statbuf) >= 0); |
| 1540 | if (optype == O_RMDIR) |
| 1541 | anum = !anum; |
| 1542 | if (anum) |
| 1543 | errno = 0; |
| 1544 | else |
| 1545 | errno = EACCES; /* a guess */ |
| 1546 | value = (double)anum; |
| 1547 | } |
| 1548 | goto donumset; |
| a687059c |
1549 | } |
| 1550 | else |
| 1551 | goto say_zero; |
| 1552 | #endif |
| a687059c |
1553 | case O_RMDIR: |
| 1554 | if (maxarg < 1) |
| 1555 | tmps = str_get(stab_val(defstab)); |
| 1556 | else |
| 1557 | tmps = str_get(st[1]); |
| 1558 | #ifdef TAINT |
| 1559 | taintproper("Insecure dependency in rmdir"); |
| 1560 | #endif |
| 1561 | #ifdef RMDIR |
| 1562 | value = (double)(rmdir(tmps) >= 0); |
| 1563 | goto donumset; |
| 1564 | #else |
| bf38876a |
1565 | (void)strcpy(buf,"rmdir "); |
| a687059c |
1566 | goto one_liner; /* see above in MKDIR */ |
| 1567 | #endif |
| 1568 | case O_GETPPID: |
| 1569 | value = (double)getppid(); |
| 1570 | goto donumset; |
| 1571 | case O_GETPGRP: |
| 1572 | #ifdef GETPGRP |
| 1573 | if (maxarg < 1) |
| 1574 | anum = 0; |
| 1575 | else |
| 1576 | anum = (int)str_gnum(st[1]); |
| 1577 | value = (double)getpgrp(anum); |
| 1578 | goto donumset; |
| 1579 | #else |
| 1580 | fatal("The getpgrp() function is unimplemented on this machine"); |
| 1581 | break; |
| 1582 | #endif |
| 1583 | case O_SETPGRP: |
| 1584 | #ifdef SETPGRP |
| 1585 | argtype = (int)str_gnum(st[1]); |
| 1586 | anum = (int)str_gnum(st[2]); |
| 1587 | #ifdef TAINT |
| 1588 | taintproper("Insecure dependency in setpgrp"); |
| 1589 | #endif |
| 1590 | value = (double)(setpgrp(argtype,anum) >= 0); |
| 1591 | goto donumset; |
| 1592 | #else |
| 1593 | fatal("The setpgrp() function is unimplemented on this machine"); |
| 1594 | break; |
| 1595 | #endif |
| 1596 | case O_GETPRIORITY: |
| 1597 | #ifdef GETPRIORITY |
| 1598 | argtype = (int)str_gnum(st[1]); |
| 1599 | anum = (int)str_gnum(st[2]); |
| 1600 | value = (double)getpriority(argtype,anum); |
| 1601 | goto donumset; |
| 1602 | #else |
| 1603 | fatal("The getpriority() function is unimplemented on this machine"); |
| 1604 | break; |
| 1605 | #endif |
| 1606 | case O_SETPRIORITY: |
| 1607 | #ifdef SETPRIORITY |
| 1608 | argtype = (int)str_gnum(st[1]); |
| 1609 | anum = (int)str_gnum(st[2]); |
| 1610 | optype = (int)str_gnum(st[3]); |
| 1611 | #ifdef TAINT |
| 1612 | taintproper("Insecure dependency in setpriority"); |
| 1613 | #endif |
| 1614 | value = (double)(setpriority(argtype,anum,optype) >= 0); |
| 378cc40b |
1615 | goto donumset; |
| a687059c |
1616 | #else |
| 1617 | fatal("The setpriority() function is unimplemented on this machine"); |
| 1618 | break; |
| 1619 | #endif |
| 1620 | case O_CHROOT: |
| 1621 | if (maxarg < 1) |
| 1622 | tmps = str_get(stab_val(defstab)); |
| 1623 | else |
| 1624 | tmps = str_get(st[1]); |
| 1625 | #ifdef TAINT |
| 1626 | taintproper("Insecure dependency in chroot"); |
| 1627 | #endif |
| 1628 | value = (double)(chroot(tmps) >= 0); |
| 1629 | goto donumset; |
| 1630 | case O_FCNTL: |
| 1631 | case O_IOCTL: |
| 1632 | if (maxarg <= 0) |
| 1633 | stab = last_in_stab; |
| 1634 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1635 | stab = arg[1].arg_ptr.arg_stab; |
| 1636 | else |
| 1637 | stab = stabent(str_get(st[1]),TRUE); |
| afd9f252 |
1638 | argtype = (unsigned int)str_gnum(st[2]); |
| a687059c |
1639 | #ifdef TAINT |
| 1640 | taintproper("Insecure dependency in ioctl"); |
| 1641 | #endif |
| 1642 | anum = do_ctl(optype,stab,argtype,st[3]); |
| 1643 | if (anum == -1) |
| 1644 | goto say_undef; |
| 1645 | if (anum != 0) |
| 1646 | goto donumset; |
| 1647 | str_set(str,"0 but true"); |
| 1648 | STABSET(str); |
| 1649 | break; |
| 1650 | case O_FLOCK: |
| 1651 | #ifdef FLOCK |
| 1652 | if (maxarg <= 0) |
| 1653 | stab = last_in_stab; |
| 1654 | else if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1655 | stab = arg[1].arg_ptr.arg_stab; |
| 1656 | else |
| 1657 | stab = stabent(str_get(st[1]),TRUE); |
| 1658 | if (stab && stab_io(stab)) |
| 1659 | fp = stab_io(stab)->ifp; |
| 1660 | else |
| 1661 | fp = Nullfp; |
| 1662 | if (fp) { |
| 1663 | argtype = (int)str_gnum(st[2]); |
| 1664 | value = (double)(flock(fileno(fp),argtype) >= 0); |
| 1665 | } |
| 1666 | else |
| 1667 | value = 0; |
| 1668 | goto donumset; |
| 1669 | #else |
| 1670 | fatal("The flock() function is unimplemented on this machine"); |
| 1671 | break; |
| 1672 | #endif |
| 378cc40b |
1673 | case O_UNSHIFT: |
| a687059c |
1674 | ary = stab_array(arg[1].arg_ptr.arg_stab); |
| 1675 | if (arglast[2] - arglast[1] != 1) |
| 1676 | do_unshift(ary,arglast); |
| 378cc40b |
1677 | else { |
| a687059c |
1678 | str = Str_new(52,0); /* must copy the STR */ |
| 1679 | str_sset(str,st[2]); |
| 378cc40b |
1680 | aunshift(ary,1); |
| a687059c |
1681 | (void)astore(ary,0,str); |
| 378cc40b |
1682 | } |
| 1683 | value = (double)(ary->ary_fill + 1); |
| 1684 | break; |
| 1685 | case O_DOFILE: |
| 1686 | case O_EVAL: |
| a687059c |
1687 | if (maxarg < 1) |
| 1688 | tmpstr = stab_val(defstab); |
| 1689 | else |
| 1690 | tmpstr = |
| 1691 | (arg[1].arg_type & A_MASK) != A_NULL ? st[1] : stab_val(defstab); |
| 1692 | #ifdef TAINT |
| 1693 | tainted |= tmpstr->str_tainted; |
| 1694 | taintproper("Insecure dependency in eval"); |
| 1695 | #endif |
| 1696 | sp = do_eval(tmpstr, optype, arg[2].arg_ptr.arg_hash, |
| 1697 | gimme,arglast); |
| 1698 | goto array_return; |
| 378cc40b |
1699 | |
| 1700 | case O_FTRREAD: |
| 1701 | argtype = 0; |
| 1702 | anum = S_IREAD; |
| 1703 | goto check_perm; |
| 1704 | case O_FTRWRITE: |
| 1705 | argtype = 0; |
| 1706 | anum = S_IWRITE; |
| 1707 | goto check_perm; |
| 1708 | case O_FTREXEC: |
| 1709 | argtype = 0; |
| 1710 | anum = S_IEXEC; |
| 1711 | goto check_perm; |
| 1712 | case O_FTEREAD: |
| 1713 | argtype = 1; |
| 1714 | anum = S_IREAD; |
| 1715 | goto check_perm; |
| 1716 | case O_FTEWRITE: |
| 1717 | argtype = 1; |
| 1718 | anum = S_IWRITE; |
| 1719 | goto check_perm; |
| 1720 | case O_FTEEXEC: |
| 1721 | argtype = 1; |
| 1722 | anum = S_IEXEC; |
| 1723 | check_perm: |
| a687059c |
1724 | if (mystat(arg,st[1]) < 0) |
| 1725 | goto say_undef; |
| 1726 | if (cando(anum,argtype,&statcache)) |
| 1727 | goto say_yes; |
| 1728 | goto say_no; |
| 378cc40b |
1729 | |
| 1730 | case O_FTIS: |
| a687059c |
1731 | if (mystat(arg,st[1]) < 0) |
| 1732 | goto say_undef; |
| 1733 | goto say_yes; |
| 378cc40b |
1734 | case O_FTEOWNED: |
| 1735 | case O_FTROWNED: |
| a687059c |
1736 | if (mystat(arg,st[1]) < 0) |
| 1737 | goto say_undef; |
| 1738 | if (statcache.st_uid == (optype == O_FTEOWNED ? euid : uid) ) |
| 1739 | goto say_yes; |
| 1740 | goto say_no; |
| 378cc40b |
1741 | case O_FTZERO: |
| a687059c |
1742 | if (mystat(arg,st[1]) < 0) |
| 1743 | goto say_undef; |
| 1744 | if (!statcache.st_size) |
| 1745 | goto say_yes; |
| 1746 | goto say_no; |
| 378cc40b |
1747 | case O_FTSIZE: |
| a687059c |
1748 | if (mystat(arg,st[1]) < 0) |
| 1749 | goto say_undef; |
| 1750 | if (statcache.st_size) |
| 1751 | goto say_yes; |
| 1752 | goto say_no; |
| 378cc40b |
1753 | |
| 1754 | case O_FTSOCK: |
| 1755 | #ifdef S_IFSOCK |
| 1756 | anum = S_IFSOCK; |
| 1757 | goto check_file_type; |
| 1758 | #else |
| a687059c |
1759 | goto say_no; |
| 378cc40b |
1760 | #endif |
| 1761 | case O_FTCHR: |
| 1762 | anum = S_IFCHR; |
| 1763 | goto check_file_type; |
| 1764 | case O_FTBLK: |
| 1765 | anum = S_IFBLK; |
| 1766 | goto check_file_type; |
| 1767 | case O_FTFILE: |
| 1768 | anum = S_IFREG; |
| 1769 | goto check_file_type; |
| 1770 | case O_FTDIR: |
| 1771 | anum = S_IFDIR; |
| 1772 | check_file_type: |
| a687059c |
1773 | if (mystat(arg,st[1]) < 0) |
| 1774 | goto say_undef; |
| 1775 | if ((statcache.st_mode & S_IFMT) == anum ) |
| 1776 | goto say_yes; |
| 1777 | goto say_no; |
| 378cc40b |
1778 | case O_FTPIPE: |
| 1779 | #ifdef S_IFIFO |
| 1780 | anum = S_IFIFO; |
| 1781 | goto check_file_type; |
| 1782 | #else |
| a687059c |
1783 | goto say_no; |
| 378cc40b |
1784 | #endif |
| 1785 | case O_FTLINK: |
| afd9f252 |
1786 | if (arg[1].arg_type & A_DONT) |
| 1787 | fatal("You must supply explicit filename with -l"); |
| 0d3e774c |
1788 | #ifdef LSTAT |
| a687059c |
1789 | if (lstat(str_get(st[1]),&statcache) < 0) |
| 1790 | goto say_undef; |
| 1791 | if ((statcache.st_mode & S_IFMT) == S_IFLNK ) |
| 1792 | goto say_yes; |
| 378cc40b |
1793 | #endif |
| a687059c |
1794 | goto say_no; |
| 378cc40b |
1795 | case O_SYMLINK: |
| 1796 | #ifdef SYMLINK |
| a687059c |
1797 | tmps = str_get(st[1]); |
| 1798 | tmps2 = str_get(st[2]); |
| 1799 | #ifdef TAINT |
| 1800 | taintproper("Insecure dependency in symlink"); |
| 1801 | #endif |
| 1802 | value = (double)(symlink(tmps,tmps2) >= 0); |
| 378cc40b |
1803 | goto donumset; |
| 1804 | #else |
| 1805 | fatal("Unsupported function symlink()"); |
| 1806 | #endif |
| a687059c |
1807 | case O_READLINK: |
| 1808 | #ifdef SYMLINK |
| 1809 | if (maxarg < 1) |
| 1810 | tmps = str_get(stab_val(defstab)); |
| 1811 | else |
| 1812 | tmps = str_get(st[1]); |
| 1813 | anum = readlink(tmps,buf,sizeof buf); |
| 1814 | if (anum < 0) |
| 1815 | goto say_undef; |
| 1816 | str_nset(str,buf,anum); |
| 1817 | break; |
| 1818 | #else |
| 1819 | fatal("Unsupported function readlink()"); |
| 1820 | #endif |
| 378cc40b |
1821 | case O_FTSUID: |
| 1822 | anum = S_ISUID; |
| 1823 | goto check_xid; |
| 1824 | case O_FTSGID: |
| 1825 | anum = S_ISGID; |
| 1826 | goto check_xid; |
| 1827 | case O_FTSVTX: |
| 1828 | anum = S_ISVTX; |
| 1829 | check_xid: |
| a687059c |
1830 | if (mystat(arg,st[1]) < 0) |
| 1831 | goto say_undef; |
| 1832 | if (statcache.st_mode & anum) |
| 1833 | goto say_yes; |
| 1834 | goto say_no; |
| 378cc40b |
1835 | case O_FTTTY: |
| a687059c |
1836 | if (arg[1].arg_type & A_DONT) { |
| 378cc40b |
1837 | stab = arg[1].arg_ptr.arg_stab; |
| 1838 | tmps = ""; |
| 1839 | } |
| 1840 | else |
| a687059c |
1841 | stab = stabent(tmps = str_get(st[1]),FALSE); |
| 1842 | if (stab && stab_io(stab) && stab_io(stab)->ifp) |
| 1843 | anum = fileno(stab_io(stab)->ifp); |
| 378cc40b |
1844 | else if (isdigit(*tmps)) |
| 1845 | anum = atoi(tmps); |
| 1846 | else |
| a687059c |
1847 | goto say_undef; |
| 378cc40b |
1848 | if (isatty(anum)) |
| a687059c |
1849 | goto say_yes; |
| 1850 | goto say_no; |
| 378cc40b |
1851 | case O_FTTEXT: |
| 1852 | case O_FTBINARY: |
| a687059c |
1853 | str = do_fttext(arg,st[1]); |
| 378cc40b |
1854 | break; |
| a687059c |
1855 | #ifdef SOCKET |
| 1856 | case O_SOCKET: |
| 1857 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1858 | stab = arg[1].arg_ptr.arg_stab; |
| 1859 | else |
| 1860 | stab = stabent(str_get(st[1]),TRUE); |
| 1861 | #ifndef lint |
| 1862 | value = (double)do_socket(stab,arglast); |
| 1863 | #else |
| 1864 | (void)do_socket(stab,arglast); |
| 1865 | #endif |
| 1866 | goto donumset; |
| 1867 | case O_BIND: |
| 1868 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1869 | stab = arg[1].arg_ptr.arg_stab; |
| 1870 | else |
| 1871 | stab = stabent(str_get(st[1]),TRUE); |
| 1872 | #ifndef lint |
| 1873 | value = (double)do_bind(stab,arglast); |
| 1874 | #else |
| 1875 | (void)do_bind(stab,arglast); |
| 1876 | #endif |
| 1877 | goto donumset; |
| 1878 | case O_CONNECT: |
| 1879 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1880 | stab = arg[1].arg_ptr.arg_stab; |
| 1881 | else |
| 1882 | stab = stabent(str_get(st[1]),TRUE); |
| 1883 | #ifndef lint |
| 1884 | value = (double)do_connect(stab,arglast); |
| 1885 | #else |
| 1886 | (void)do_connect(stab,arglast); |
| 1887 | #endif |
| 1888 | goto donumset; |
| 1889 | case O_LISTEN: |
| 1890 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1891 | stab = arg[1].arg_ptr.arg_stab; |
| 1892 | else |
| 1893 | stab = stabent(str_get(st[1]),TRUE); |
| 1894 | #ifndef lint |
| 1895 | value = (double)do_listen(stab,arglast); |
| 1896 | #else |
| 1897 | (void)do_listen(stab,arglast); |
| 1898 | #endif |
| 1899 | goto donumset; |
| 1900 | case O_ACCEPT: |
| 1901 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1902 | stab = arg[1].arg_ptr.arg_stab; |
| 1903 | else |
| 1904 | stab = stabent(str_get(st[1]),TRUE); |
| 1905 | if ((arg[2].arg_type & A_MASK) == A_WORD) |
| 1906 | stab2 = arg[2].arg_ptr.arg_stab; |
| 1907 | else |
| 1908 | stab2 = stabent(str_get(st[2]),TRUE); |
| 1909 | do_accept(str,stab,stab2); |
| 1910 | STABSET(str); |
| 1911 | break; |
| 1912 | case O_GHBYNAME: |
| 1913 | if (maxarg < 1) |
| 1914 | goto say_undef; |
| 1915 | case O_GHBYADDR: |
| 1916 | case O_GHOSTENT: |
| 1917 | sp = do_ghent(optype, |
| 1918 | gimme,arglast); |
| 1919 | goto array_return; |
| 1920 | case O_GNBYNAME: |
| 1921 | if (maxarg < 1) |
| 1922 | goto say_undef; |
| 1923 | case O_GNBYADDR: |
| 1924 | case O_GNETENT: |
| 1925 | sp = do_gnent(optype, |
| 1926 | gimme,arglast); |
| 1927 | goto array_return; |
| 1928 | case O_GPBYNAME: |
| 1929 | if (maxarg < 1) |
| 1930 | goto say_undef; |
| 1931 | case O_GPBYNUMBER: |
| 1932 | case O_GPROTOENT: |
| 1933 | sp = do_gpent(optype, |
| 1934 | gimme,arglast); |
| 1935 | goto array_return; |
| 1936 | case O_GSBYNAME: |
| 1937 | if (maxarg < 1) |
| 1938 | goto say_undef; |
| 1939 | case O_GSBYPORT: |
| 1940 | case O_GSERVENT: |
| 1941 | sp = do_gsent(optype, |
| 1942 | gimme,arglast); |
| 1943 | goto array_return; |
| 1944 | case O_SHOSTENT: |
| 1945 | value = (double) sethostent((int)str_gnum(st[1])); |
| 1946 | goto donumset; |
| 1947 | case O_SNETENT: |
| 1948 | value = (double) setnetent((int)str_gnum(st[1])); |
| 1949 | goto donumset; |
| 1950 | case O_SPROTOENT: |
| 1951 | value = (double) setprotoent((int)str_gnum(st[1])); |
| 1952 | goto donumset; |
| 1953 | case O_SSERVENT: |
| 1954 | value = (double) setservent((int)str_gnum(st[1])); |
| 1955 | goto donumset; |
| 1956 | case O_EHOSTENT: |
| 1957 | value = (double) endhostent(); |
| 1958 | goto donumset; |
| 1959 | case O_ENETENT: |
| 1960 | value = (double) endnetent(); |
| 1961 | goto donumset; |
| 1962 | case O_EPROTOENT: |
| 1963 | value = (double) endprotoent(); |
| 1964 | goto donumset; |
| 1965 | case O_ESERVENT: |
| 1966 | value = (double) endservent(); |
| 1967 | goto donumset; |
| 1968 | case O_SSELECT: |
| 1969 | sp = do_select(gimme,arglast); |
| 1970 | goto array_return; |
| 1971 | case O_SOCKETPAIR: |
| 1972 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1973 | stab = arg[1].arg_ptr.arg_stab; |
| 1974 | else |
| 1975 | stab = stabent(str_get(st[1]),TRUE); |
| 1976 | if ((arg[2].arg_type & A_MASK) == A_WORD) |
| 1977 | stab2 = arg[2].arg_ptr.arg_stab; |
| 1978 | else |
| 1979 | stab2 = stabent(str_get(st[2]),TRUE); |
| 1980 | #ifndef lint |
| 1981 | value = (double)do_spair(stab,stab2,arglast); |
| 1982 | #else |
| 1983 | (void)do_spair(stab,stab2,arglast); |
| 1984 | #endif |
| 1985 | goto donumset; |
| 1986 | case O_SHUTDOWN: |
| 1987 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 1988 | stab = arg[1].arg_ptr.arg_stab; |
| 1989 | else |
| 1990 | stab = stabent(str_get(st[1]),TRUE); |
| 1991 | #ifndef lint |
| 1992 | value = (double)do_shutdown(stab,arglast); |
| 1993 | #else |
| 1994 | (void)do_shutdown(stab,arglast); |
| 1995 | #endif |
| 1996 | goto donumset; |
| 1997 | case O_GSOCKOPT: |
| 1998 | case O_SSOCKOPT: |
| 1999 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 2000 | stab = arg[1].arg_ptr.arg_stab; |
| 2001 | else |
| 2002 | stab = stabent(str_get(st[1]),TRUE); |
| 2003 | sp = do_sopt(optype,stab,arglast); |
| 2004 | goto array_return; |
| 2005 | case O_GETSOCKNAME: |
| 2006 | case O_GETPEERNAME: |
| 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 | sp = do_getsockname(optype,stab,arglast); |
| 2012 | goto array_return; |
| 2013 | |
| 2014 | #else /* SOCKET not defined */ |
| 2015 | case O_SOCKET: |
| 2016 | case O_BIND: |
| 2017 | case O_CONNECT: |
| 2018 | case O_LISTEN: |
| 2019 | case O_ACCEPT: |
| 2020 | case O_SSELECT: |
| 2021 | case O_SOCKETPAIR: |
| 2022 | case O_GHBYNAME: |
| 2023 | case O_GHBYADDR: |
| 2024 | case O_GHOSTENT: |
| 2025 | case O_GNBYNAME: |
| 2026 | case O_GNBYADDR: |
| 2027 | case O_GNETENT: |
| 2028 | case O_GPBYNAME: |
| 2029 | case O_GPBYNUMBER: |
| 2030 | case O_GPROTOENT: |
| 2031 | case O_GSBYNAME: |
| 2032 | case O_GSBYPORT: |
| 2033 | case O_GSERVENT: |
| 2034 | case O_SHOSTENT: |
| 2035 | case O_SNETENT: |
| 2036 | case O_SPROTOENT: |
| 2037 | case O_SSERVENT: |
| 2038 | case O_EHOSTENT: |
| 2039 | case O_ENETENT: |
| 2040 | case O_EPROTOENT: |
| 2041 | case O_ESERVENT: |
| 2042 | case O_SHUTDOWN: |
| 2043 | case O_GSOCKOPT: |
| 2044 | case O_SSOCKOPT: |
| 2045 | case O_GETSOCKNAME: |
| 2046 | case O_GETPEERNAME: |
| 2047 | badsock: |
| 2048 | fatal("Unsupported socket function"); |
| 2049 | #endif /* SOCKET */ |
| 2050 | case O_FILENO: |
| bf38876a |
2051 | if (maxarg < 1) |
| 2052 | goto say_undef; |
| a687059c |
2053 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 2054 | stab = arg[1].arg_ptr.arg_stab; |
| 2055 | else |
| 2056 | stab = stabent(str_get(st[1]),TRUE); |
| 2057 | if (!stab || !(stio = stab_io(stab)) || !(fp = stio->ifp)) |
| 2058 | goto say_undef; |
| 2059 | value = fileno(fp); |
| 2060 | goto donumset; |
| 2061 | case O_VEC: |
| 2062 | sp = do_vec(str == st[1], arg->arg_ptr.arg_str, arglast); |
| 2063 | goto array_return; |
| 2064 | case O_GPWNAM: |
| 2065 | case O_GPWUID: |
| 2066 | case O_GPWENT: |
| 2067 | sp = do_gpwent(optype, |
| 2068 | gimme,arglast); |
| 2069 | goto array_return; |
| 2070 | case O_SPWENT: |
| 2071 | value = (double) setpwent(); |
| 2072 | goto donumset; |
| 2073 | case O_EPWENT: |
| 2074 | value = (double) endpwent(); |
| 2075 | goto donumset; |
| 2076 | case O_GGRNAM: |
| 2077 | case O_GGRGID: |
| 2078 | case O_GGRENT: |
| 2079 | sp = do_ggrent(optype, |
| 2080 | gimme,arglast); |
| 2081 | goto array_return; |
| 2082 | case O_SGRENT: |
| 2083 | value = (double) setgrent(); |
| 2084 | goto donumset; |
| 2085 | case O_EGRENT: |
| 2086 | value = (double) endgrent(); |
| 2087 | goto donumset; |
| 2088 | case O_GETLOGIN: |
| 2089 | if (!(tmps = getlogin())) |
| 2090 | goto say_undef; |
| 2091 | str_set(str,tmps); |
| 2092 | break; |
| 2093 | case O_OPENDIR: |
| 2094 | case O_READDIR: |
| 2095 | case O_TELLDIR: |
| 2096 | case O_SEEKDIR: |
| 2097 | case O_REWINDDIR: |
| 2098 | case O_CLOSEDIR: |
| bf38876a |
2099 | if (maxarg < 1) |
| 2100 | goto say_undef; |
| a687059c |
2101 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 2102 | stab = arg[1].arg_ptr.arg_stab; |
| 2103 | else |
| 2104 | stab = stabent(str_get(st[1]),TRUE); |
| 2105 | sp = do_dirop(optype,stab,gimme,arglast); |
| 2106 | goto array_return; |
| 2107 | case O_SYSCALL: |
| 2108 | value = (double)do_syscall(arglast); |
| 2109 | goto donumset; |
| afd9f252 |
2110 | case O_PIPE: |
| 2111 | if ((arg[1].arg_type & A_MASK) == A_WORD) |
| 2112 | stab = arg[1].arg_ptr.arg_stab; |
| 2113 | else |
| 2114 | stab = stabent(str_get(st[1]),TRUE); |
| 2115 | if ((arg[2].arg_type & A_MASK) == A_WORD) |
| 2116 | stab2 = arg[2].arg_ptr.arg_stab; |
| 2117 | else |
| 2118 | stab2 = stabent(str_get(st[2]),TRUE); |
| 2119 | do_pipe(str,stab,stab2); |
| 2120 | STABSET(str); |
| 2121 | break; |
| 378cc40b |
2122 | } |
| a687059c |
2123 | |
| 2124 | normal_return: |
| 2125 | st[1] = str; |
| 378cc40b |
2126 | #ifdef DEBUGGING |
| 2127 | if (debug) { |
| 2128 | dlevel--; |
| 2129 | if (debug & 8) |
| 2130 | deb("%s RETURNS \"%s\"\n",opname[optype],str_get(str)); |
| 2131 | } |
| 2132 | #endif |
| a687059c |
2133 | return arglast[0] + 1; |
| 378cc40b |
2134 | |
| 2135 | array_return: |
| 2136 | #ifdef DEBUGGING |
| 2137 | if (debug) { |
| 2138 | dlevel--; |
| afd9f252 |
2139 | if (debug & 8) { |
| 2140 | anum = sp - arglast[0]; |
| 2141 | switch (anum) { |
| 2142 | case 0: |
| 2143 | deb("%s RETURNS ()\n",opname[optype]); |
| 2144 | break; |
| 2145 | case 1: |
| 2146 | deb("%s RETURNS (\"%s\")\n",opname[optype],str_get(st[1])); |
| 2147 | break; |
| 2148 | default: |
| 2149 | deb("%s RETURNS %d ARGS (\"%s\",%s\"%s\"\n",opname[optype],anum, |
| 2150 | str_get(st[1]),anum==2?"":"...,",str_get(st[anum])); |
| 2151 | break; |
| 2152 | } |
| 2153 | } |
| 378cc40b |
2154 | } |
| 2155 | #endif |
| a687059c |
2156 | return sp; |
| 2157 | |
| 2158 | say_yes: |
| 2159 | str = &str_yes; |
| 2160 | goto normal_return; |
| 2161 | |
| 2162 | say_no: |
| 2163 | str = &str_no; |
| 2164 | goto normal_return; |
| 2165 | |
| 2166 | say_undef: |
| 2167 | str = &str_undef; |
| 2168 | goto normal_return; |
| 2169 | |
| 2170 | say_zero: |
| 2171 | value = 0.0; |
| 2172 | /* FALL THROUGH */ |
| 378cc40b |
2173 | |
| 2174 | donumset: |
| 2175 | str_numset(str,value); |
| 2176 | STABSET(str); |
| a687059c |
2177 | st[1] = str; |
| 378cc40b |
2178 | #ifdef DEBUGGING |
| 2179 | if (debug) { |
| 2180 | dlevel--; |
| 2181 | if (debug & 8) |
| 2182 | deb("%s RETURNS \"%f\"\n",opname[optype],value); |
| 2183 | } |
| 2184 | #endif |
| a687059c |
2185 | return arglast[0] + 1; |
| 378cc40b |
2186 | } |
projects / p5sagit/p5-mst-13.2.git / blame