Commit | Line | Data |
ff8e2863 |
1 | /* $Header: doio.c,v 3.0.1.9 90/08/09 02:56:19 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. |
7 | * |
8 | * $Log: doio.c,v $ |
ff8e2863 |
9 | * Revision 3.0.1.9 90/08/09 02:56:19 lwall |
10 | * patch19: various MSDOS and OS/2 patches folded in |
11 | * patch19: prints now check error status better |
12 | * patch19: printing a list with null elements only printed front of list |
13 | * patch19: on machines with vfork child would allocate memory in parent |
14 | * patch19: getsockname and getpeername gave bogus warning on error |
15 | * patch19: MACH doesn't have seekdir or telldir |
16 | * |
b1248f16 |
17 | * Revision 3.0.1.8 90/03/27 15:44:02 lwall |
18 | * patch16: MSDOS support |
19 | * patch16: support for machines that can't cast negative floats to unsigned ints |
20 | * patch16: system() can lose arguments passed to shell scripts on SysV machines |
21 | * |
63f2c1e1 |
22 | * Revision 3.0.1.7 90/03/14 12:26:24 lwall |
23 | * patch15: commands involving execs could cause malloc arena corruption |
24 | * |
ff2452de |
25 | * Revision 3.0.1.6 90/03/12 16:30:07 lwall |
26 | * patch13: system 'FOO=bar command' didn't invoke sh as it should |
27 | * |
afd9f252 |
28 | * Revision 3.0.1.5 90/02/28 17:01:36 lwall |
29 | * patch9: open(FOO,"$filename\0") will now protect trailing spaces in filename |
30 | * patch9: removed obsolete checks to avoid opening block devices |
31 | * patch9: removed references to acusec and modusec that some utime.h's have |
32 | * patch9: added pipe function |
33 | * |
663a0e37 |
34 | * Revision 3.0.1.4 89/12/21 19:55:10 lwall |
35 | * patch7: select now works on big-endian machines |
36 | * patch7: errno may now be a macro with an lvalue |
37 | * patch7: ANSI strerror() is now supported |
38 | * patch7: Configure now detects DG/UX thingies like [sg]etpgrp2 and utime.h |
39 | * |
0d3e774c |
40 | * Revision 3.0.1.3 89/11/17 15:13:06 lwall |
41 | * patch5: some systems have symlink() but not lstat() |
42 | * patch5: some systems have dirent.h but not readdir() |
43 | * |
bf38876a |
44 | * Revision 3.0.1.2 89/11/11 04:25:51 lwall |
45 | * patch2: orthogonalized the file modes some so we can have <& +<& etc. |
46 | * patch2: do_open() now detects sockets passed to process from parent |
47 | * patch2: fd's above 2 are now closed on exec |
48 | * patch2: csh code can now use csh from other than /bin |
49 | * patch2: getsockopt, get{sock,peer}name didn't define result properly |
50 | * patch2: warn("shutdown") was replicated |
51 | * patch2: gethostbyname was misdeclared |
52 | * patch2: telldir() is sometimes a macro |
53 | * |
03a14243 |
54 | * Revision 3.0.1.1 89/10/26 23:10:05 lwall |
55 | * patch1: Configure now checks for BSD shadow passwords |
56 | * |
a687059c |
57 | * Revision 3.0 89/10/18 15:10:54 lwall |
58 | * 3.0 baseline |
59 | * |
60 | */ |
61 | |
62 | #include "EXTERN.h" |
63 | #include "perl.h" |
64 | |
65 | #ifdef SOCKET |
66 | #include <sys/socket.h> |
67 | #include <netdb.h> |
68 | #endif |
69 | |
a687059c |
70 | #ifdef I_PWD |
71 | #include <pwd.h> |
72 | #endif |
73 | #ifdef I_GRP |
74 | #include <grp.h> |
75 | #endif |
663a0e37 |
76 | #ifdef I_UTIME |
77 | #include <utime.h> |
78 | #endif |
ff8e2863 |
79 | #ifdef I_FCNTL |
80 | #include <fcntl.h> |
81 | #endif |
a687059c |
82 | |
83 | bool |
afd9f252 |
84 | do_open(stab,name,len) |
a687059c |
85 | STAB *stab; |
86 | register char *name; |
afd9f252 |
87 | int len; |
a687059c |
88 | { |
89 | FILE *fp; |
a687059c |
90 | register STIO *stio = stab_io(stab); |
91 | char *myname = savestr(name); |
92 | int result; |
93 | int fd; |
94 | int writing = 0; |
95 | char mode[3]; /* stdio file mode ("r\0" or "r+\0") */ |
96 | |
97 | name = myname; |
98 | forkprocess = 1; /* assume true if no fork */ |
99 | while (len && isspace(name[len-1])) |
100 | name[--len] = '\0'; |
101 | if (!stio) |
102 | stio = stab_io(stab) = stio_new(); |
103 | else if (stio->ifp) { |
104 | fd = fileno(stio->ifp); |
105 | if (stio->type == '|') |
106 | result = mypclose(stio->ifp); |
107 | else if (stio->ifp != stio->ofp) { |
108 | if (stio->ofp) |
109 | fclose(stio->ofp); |
110 | result = fclose(stio->ifp); |
111 | } |
112 | else if (stio->type != '-') |
113 | result = fclose(stio->ifp); |
114 | else |
115 | result = 0; |
116 | if (result == EOF && fd > 2) |
117 | fprintf(stderr,"Warning: unable to close filehandle %s properly.\n", |
118 | stab_name(stab)); |
119 | stio->ofp = stio->ifp = Nullfp; |
120 | } |
121 | if (*name == '+' && len > 1 && name[len-1] != '|') { /* scary */ |
122 | mode[1] = *name++; |
123 | mode[2] = '\0'; |
124 | --len; |
125 | writing = 1; |
126 | } |
127 | else { |
128 | mode[1] = '\0'; |
129 | } |
130 | stio->type = *name; |
131 | if (*name == '|') { |
132 | for (name++; isspace(*name); name++) ; |
133 | #ifdef TAINT |
134 | taintenv(); |
135 | taintproper("Insecure dependency in piped open"); |
136 | #endif |
137 | fp = mypopen(name,"w"); |
138 | writing = 1; |
139 | } |
a687059c |
140 | else if (*name == '>') { |
141 | #ifdef TAINT |
142 | taintproper("Insecure dependency in open"); |
143 | #endif |
bf38876a |
144 | name++; |
145 | if (*name == '>') { |
146 | mode[0] = stio->type = 'a'; |
147 | name++; |
a687059c |
148 | } |
bf38876a |
149 | else |
a687059c |
150 | mode[0] = 'w'; |
a687059c |
151 | writing = 1; |
bf38876a |
152 | if (*name == '&') { |
153 | duplicity: |
154 | name++; |
155 | while (isspace(*name)) |
156 | name++; |
157 | if (isdigit(*name)) |
158 | fd = atoi(name); |
159 | else { |
160 | stab = stabent(name,FALSE); |
161 | if (!stab || !stab_io(stab)) |
162 | return FALSE; |
163 | if (stab_io(stab) && stab_io(stab)->ifp) { |
164 | fd = fileno(stab_io(stab)->ifp); |
165 | if (stab_io(stab)->type == 's') |
166 | stio->type = 's'; |
167 | } |
168 | else |
169 | fd = -1; |
170 | } |
171 | fp = fdopen(dup(fd),mode); |
172 | } |
173 | else { |
174 | while (isspace(*name)) |
175 | name++; |
176 | if (strEQ(name,"-")) { |
177 | fp = stdout; |
178 | stio->type = '-'; |
179 | } |
180 | else { |
181 | fp = fopen(name,mode); |
182 | } |
183 | } |
a687059c |
184 | } |
185 | else { |
186 | if (*name == '<') { |
bf38876a |
187 | mode[0] = 'r'; |
188 | name++; |
189 | while (isspace(*name)) |
190 | name++; |
191 | if (*name == '&') |
192 | goto duplicity; |
a687059c |
193 | if (strEQ(name,"-")) { |
194 | fp = stdin; |
195 | stio->type = '-'; |
196 | } |
bf38876a |
197 | else |
a687059c |
198 | fp = fopen(name,mode); |
a687059c |
199 | } |
200 | else if (name[len-1] == '|') { |
201 | #ifdef TAINT |
202 | taintenv(); |
203 | taintproper("Insecure dependency in piped open"); |
204 | #endif |
205 | name[--len] = '\0'; |
206 | while (len && isspace(name[len-1])) |
207 | name[--len] = '\0'; |
208 | for (; isspace(*name); name++) ; |
209 | fp = mypopen(name,"r"); |
210 | stio->type = '|'; |
211 | } |
212 | else { |
213 | stio->type = '<'; |
214 | for (; isspace(*name); name++) ; |
215 | if (strEQ(name,"-")) { |
216 | fp = stdin; |
217 | stio->type = '-'; |
218 | } |
219 | else |
220 | fp = fopen(name,"r"); |
221 | } |
222 | } |
223 | Safefree(myname); |
224 | if (!fp) |
225 | return FALSE; |
226 | if (stio->type && |
227 | stio->type != '|' && stio->type != '-') { |
228 | if (fstat(fileno(fp),&statbuf) < 0) { |
229 | (void)fclose(fp); |
230 | return FALSE; |
231 | } |
bf38876a |
232 | result = (statbuf.st_mode & S_IFMT); |
bf38876a |
233 | #ifdef S_IFSOCK |
234 | if (result == S_IFSOCK || result == 0) |
235 | stio->type = 's'; /* in case a socket was passed in to us */ |
236 | #endif |
a687059c |
237 | } |
bf38876a |
238 | #if defined(FCNTL) && defined(F_SETFD) |
239 | fd = fileno(fp); |
240 | if (fd >= 3) |
241 | fcntl(fd,F_SETFD,1); |
242 | #endif |
a687059c |
243 | stio->ifp = fp; |
bf38876a |
244 | if (writing) { |
245 | if (stio->type != 's') |
246 | stio->ofp = fp; |
247 | else |
248 | stio->ofp = fdopen(fileno(fp),"w"); |
249 | } |
a687059c |
250 | return TRUE; |
251 | } |
252 | |
253 | FILE * |
254 | nextargv(stab) |
255 | register STAB *stab; |
256 | { |
257 | register STR *str; |
258 | char *oldname; |
259 | int filemode,fileuid,filegid; |
260 | |
261 | while (alen(stab_xarray(stab)) >= 0) { |
262 | str = ashift(stab_xarray(stab)); |
263 | str_sset(stab_val(stab),str); |
264 | STABSET(stab_val(stab)); |
265 | oldname = str_get(stab_val(stab)); |
afd9f252 |
266 | if (do_open(stab,oldname,stab_val(stab)->str_cur)) { |
a687059c |
267 | if (inplace) { |
268 | #ifdef TAINT |
269 | taintproper("Insecure dependency in inplace open"); |
270 | #endif |
271 | filemode = statbuf.st_mode; |
272 | fileuid = statbuf.st_uid; |
273 | filegid = statbuf.st_gid; |
274 | if (*inplace) { |
ff8e2863 |
275 | #ifdef SUFFIX |
276 | add_suffix(str,inplace); |
277 | #else |
a687059c |
278 | str_cat(str,inplace); |
ff8e2863 |
279 | #endif |
a687059c |
280 | #ifdef RENAME |
ff8e2863 |
281 | #ifndef MSDOS |
a687059c |
282 | (void)rename(oldname,str->str_ptr); |
283 | #else |
ff8e2863 |
284 | do_close(stab,FALSE); |
285 | (void)unlink(str->str_ptr); |
286 | (void)rename(oldname,str->str_ptr); |
287 | do_open(stab,str->str_ptr,stab_val(stab)->str_cur); |
288 | #endif /* MSDOS */ |
289 | #else |
a687059c |
290 | (void)UNLINK(str->str_ptr); |
291 | (void)link(oldname,str->str_ptr); |
292 | (void)UNLINK(oldname); |
293 | #endif |
294 | } |
295 | else { |
ff8e2863 |
296 | #ifndef MSDOS |
a687059c |
297 | (void)UNLINK(oldname); |
ff8e2863 |
298 | #else |
299 | fatal("Can't do inplace edit without backup"); |
300 | #endif |
a687059c |
301 | } |
302 | |
303 | str_nset(str,">",1); |
304 | str_cat(str,oldname); |
305 | errno = 0; /* in case sprintf set errno */ |
afd9f252 |
306 | if (!do_open(argvoutstab,str->str_ptr,str->str_cur)) |
a687059c |
307 | fatal("Can't do inplace edit"); |
308 | defoutstab = argvoutstab; |
309 | #ifdef FCHMOD |
310 | (void)fchmod(fileno(stab_io(argvoutstab)->ifp),filemode); |
311 | #else |
312 | (void)chmod(oldname,filemode); |
313 | #endif |
314 | #ifdef FCHOWN |
315 | (void)fchown(fileno(stab_io(argvoutstab)->ifp),fileuid,filegid); |
316 | #else |
b1248f16 |
317 | #ifdef CHOWN |
a687059c |
318 | (void)chown(oldname,fileuid,filegid); |
319 | #endif |
b1248f16 |
320 | #endif |
a687059c |
321 | } |
322 | str_free(str); |
323 | return stab_io(stab)->ifp; |
324 | } |
325 | else |
326 | fprintf(stderr,"Can't open %s\n",str_get(str)); |
327 | str_free(str); |
328 | } |
329 | if (inplace) { |
330 | (void)do_close(argvoutstab,FALSE); |
331 | defoutstab = stabent("STDOUT",TRUE); |
332 | } |
333 | return Nullfp; |
334 | } |
335 | |
b1248f16 |
336 | #ifdef PIPE |
afd9f252 |
337 | void |
338 | do_pipe(str, rstab, wstab) |
339 | STR *str; |
340 | STAB *rstab; |
341 | STAB *wstab; |
342 | { |
343 | register STIO *rstio; |
344 | register STIO *wstio; |
345 | int fd[2]; |
346 | |
347 | if (!rstab) |
348 | goto badexit; |
349 | if (!wstab) |
350 | goto badexit; |
351 | |
352 | rstio = stab_io(rstab); |
353 | wstio = stab_io(wstab); |
354 | |
355 | if (!rstio) |
356 | rstio = stab_io(rstab) = stio_new(); |
357 | else if (rstio->ifp) |
358 | do_close(rstab,FALSE); |
359 | if (!wstio) |
360 | wstio = stab_io(wstab) = stio_new(); |
361 | else if (wstio->ifp) |
362 | do_close(wstab,FALSE); |
363 | |
364 | if (pipe(fd) < 0) |
365 | goto badexit; |
366 | rstio->ifp = fdopen(fd[0], "r"); |
367 | wstio->ofp = fdopen(fd[1], "w"); |
368 | wstio->ifp = wstio->ofp; |
369 | rstio->type = '<'; |
370 | wstio->type = '>'; |
371 | |
372 | str_sset(str,&str_yes); |
373 | return; |
374 | |
375 | badexit: |
376 | str_sset(str,&str_undef); |
377 | return; |
378 | } |
b1248f16 |
379 | #endif |
afd9f252 |
380 | |
a687059c |
381 | bool |
382 | do_close(stab,explicit) |
383 | STAB *stab; |
384 | bool explicit; |
385 | { |
386 | bool retval = FALSE; |
387 | register STIO *stio = stab_io(stab); |
388 | int status; |
389 | |
390 | if (!stio) { /* never opened */ |
391 | if (dowarn && explicit) |
392 | warn("Close on unopened file <%s>",stab_name(stab)); |
393 | return FALSE; |
394 | } |
395 | if (stio->ifp) { |
396 | if (stio->type == '|') { |
397 | status = mypclose(stio->ifp); |
398 | retval = (status >= 0); |
b1248f16 |
399 | statusvalue = (unsigned short)status & 0xffff; |
a687059c |
400 | } |
401 | else if (stio->type == '-') |
402 | retval = TRUE; |
403 | else { |
404 | if (stio->ofp && stio->ofp != stio->ifp) /* a socket */ |
405 | fclose(stio->ofp); |
406 | retval = (fclose(stio->ifp) != EOF); |
407 | } |
408 | stio->ofp = stio->ifp = Nullfp; |
409 | } |
410 | if (explicit) |
411 | stio->lines = 0; |
412 | stio->type = ' '; |
413 | return retval; |
414 | } |
415 | |
416 | bool |
417 | do_eof(stab) |
418 | STAB *stab; |
419 | { |
420 | register STIO *stio; |
421 | int ch; |
422 | |
423 | if (!stab) { /* eof() */ |
424 | if (argvstab) |
425 | stio = stab_io(argvstab); |
426 | else |
427 | return TRUE; |
428 | } |
429 | else |
430 | stio = stab_io(stab); |
431 | |
432 | if (!stio) |
433 | return TRUE; |
434 | |
435 | while (stio->ifp) { |
436 | |
437 | #ifdef STDSTDIO /* (the code works without this) */ |
438 | if (stio->ifp->_cnt > 0) /* cheat a little, since */ |
439 | return FALSE; /* this is the most usual case */ |
440 | #endif |
441 | |
442 | ch = getc(stio->ifp); |
443 | if (ch != EOF) { |
444 | (void)ungetc(ch, stio->ifp); |
445 | return FALSE; |
446 | } |
447 | if (!stab) { /* not necessarily a real EOF yet? */ |
448 | if (!nextargv(argvstab)) /* get another fp handy */ |
449 | return TRUE; |
450 | } |
451 | else |
452 | return TRUE; /* normal fp, definitely end of file */ |
453 | } |
454 | return TRUE; |
455 | } |
456 | |
457 | long |
458 | do_tell(stab) |
459 | STAB *stab; |
460 | { |
461 | register STIO *stio; |
462 | |
463 | if (!stab) |
464 | goto phooey; |
465 | |
466 | stio = stab_io(stab); |
467 | if (!stio || !stio->ifp) |
468 | goto phooey; |
469 | |
470 | if (feof(stio->ifp)) |
471 | (void)fseek (stio->ifp, 0L, 2); /* ultrix 1.2 workaround */ |
472 | |
473 | return ftell(stio->ifp); |
474 | |
475 | phooey: |
476 | if (dowarn) |
477 | warn("tell() on unopened file"); |
478 | return -1L; |
479 | } |
480 | |
481 | bool |
482 | do_seek(stab, pos, whence) |
483 | STAB *stab; |
484 | long pos; |
485 | int whence; |
486 | { |
487 | register STIO *stio; |
488 | |
489 | if (!stab) |
490 | goto nuts; |
491 | |
492 | stio = stab_io(stab); |
493 | if (!stio || !stio->ifp) |
494 | goto nuts; |
495 | |
496 | if (feof(stio->ifp)) |
497 | (void)fseek (stio->ifp, 0L, 2); /* ultrix 1.2 workaround */ |
498 | |
499 | return fseek(stio->ifp, pos, whence) >= 0; |
500 | |
501 | nuts: |
502 | if (dowarn) |
503 | warn("seek() on unopened file"); |
504 | return FALSE; |
505 | } |
506 | |
507 | int |
508 | do_ctl(optype,stab,func,argstr) |
509 | int optype; |
510 | STAB *stab; |
511 | int func; |
512 | STR *argstr; |
513 | { |
514 | register STIO *stio; |
515 | register char *s; |
516 | int retval; |
517 | |
518 | if (!stab || !argstr) |
519 | return -1; |
520 | stio = stab_io(stab); |
521 | if (!stio) |
522 | return -1; |
523 | |
524 | if (argstr->str_pok || !argstr->str_nok) { |
525 | if (!argstr->str_pok) |
526 | s = str_get(argstr); |
527 | |
528 | #ifdef IOCPARM_MASK |
529 | #ifndef IOCPARM_LEN |
530 | #define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK) |
531 | #endif |
532 | #endif |
533 | #ifdef IOCPARM_LEN |
534 | retval = IOCPARM_LEN(func); /* on BSDish systes we're safe */ |
535 | #else |
536 | retval = 256; /* otherwise guess at what's safe */ |
537 | #endif |
538 | if (argstr->str_cur < retval) { |
ff8e2863 |
539 | Str_Grow(argstr,retval+1); |
a687059c |
540 | argstr->str_cur = retval; |
541 | } |
542 | |
543 | s = argstr->str_ptr; |
544 | s[argstr->str_cur] = 17; /* a little sanity check here */ |
545 | } |
546 | else { |
547 | retval = (int)str_gnum(argstr); |
548 | s = (char*)retval; /* ouch */ |
549 | } |
550 | |
551 | #ifndef lint |
552 | if (optype == O_IOCTL) |
553 | retval = ioctl(fileno(stio->ifp), func, s); |
554 | else |
555 | #ifdef I_FCNTL |
556 | retval = fcntl(fileno(stio->ifp), func, s); |
557 | #else |
558 | fatal("fcntl is not implemented"); |
559 | #endif |
560 | #else /* lint */ |
561 | retval = 0; |
562 | #endif /* lint */ |
563 | |
564 | if (argstr->str_pok) { |
565 | if (s[argstr->str_cur] != 17) |
566 | fatal("Return value overflowed string"); |
567 | s[argstr->str_cur] = 0; /* put our null back */ |
568 | } |
569 | return retval; |
570 | } |
571 | |
572 | int |
573 | do_stat(str,arg,gimme,arglast) |
574 | STR *str; |
575 | register ARG *arg; |
576 | int gimme; |
577 | int *arglast; |
578 | { |
579 | register ARRAY *ary = stack; |
580 | register int sp = arglast[0] + 1; |
581 | int max = 13; |
582 | register int i; |
583 | |
584 | if ((arg[1].arg_type & A_MASK) == A_WORD) { |
585 | tmpstab = arg[1].arg_ptr.arg_stab; |
586 | if (tmpstab != defstab) { |
587 | statstab = tmpstab; |
588 | str_set(statname,""); |
589 | if (!stab_io(tmpstab) || |
590 | fstat(fileno(stab_io(tmpstab)->ifp),&statcache) < 0) { |
591 | max = 0; |
592 | } |
593 | } |
594 | } |
595 | else { |
596 | str_sset(statname,ary->ary_array[sp]); |
597 | statstab = Nullstab; |
0d3e774c |
598 | #ifdef LSTAT |
a687059c |
599 | if (arg->arg_type == O_LSTAT) |
600 | i = lstat(str_get(statname),&statcache); |
601 | else |
602 | #endif |
603 | i = stat(str_get(statname),&statcache); |
604 | if (i < 0) |
605 | max = 0; |
606 | } |
607 | |
608 | if (gimme != G_ARRAY) { |
609 | if (max) |
610 | str_sset(str,&str_yes); |
611 | else |
612 | str_sset(str,&str_undef); |
613 | STABSET(str); |
614 | ary->ary_array[sp] = str; |
615 | return sp; |
616 | } |
617 | sp--; |
618 | if (max) { |
619 | #ifndef lint |
620 | (void)astore(ary,++sp, |
621 | str_2static(str_nmake((double)statcache.st_dev))); |
622 | (void)astore(ary,++sp, |
623 | str_2static(str_nmake((double)statcache.st_ino))); |
624 | (void)astore(ary,++sp, |
625 | str_2static(str_nmake((double)statcache.st_mode))); |
626 | (void)astore(ary,++sp, |
627 | str_2static(str_nmake((double)statcache.st_nlink))); |
628 | (void)astore(ary,++sp, |
629 | str_2static(str_nmake((double)statcache.st_uid))); |
630 | (void)astore(ary,++sp, |
631 | str_2static(str_nmake((double)statcache.st_gid))); |
632 | (void)astore(ary,++sp, |
633 | str_2static(str_nmake((double)statcache.st_rdev))); |
634 | (void)astore(ary,++sp, |
635 | str_2static(str_nmake((double)statcache.st_size))); |
636 | (void)astore(ary,++sp, |
637 | str_2static(str_nmake((double)statcache.st_atime))); |
638 | (void)astore(ary,++sp, |
639 | str_2static(str_nmake((double)statcache.st_mtime))); |
640 | (void)astore(ary,++sp, |
641 | str_2static(str_nmake((double)statcache.st_ctime))); |
642 | #ifdef STATBLOCKS |
643 | (void)astore(ary,++sp, |
644 | str_2static(str_nmake((double)statcache.st_blksize))); |
645 | (void)astore(ary,++sp, |
646 | str_2static(str_nmake((double)statcache.st_blocks))); |
647 | #else |
648 | (void)astore(ary,++sp, |
649 | str_2static(str_make("",0))); |
650 | (void)astore(ary,++sp, |
651 | str_2static(str_make("",0))); |
652 | #endif |
653 | #else /* lint */ |
654 | (void)astore(ary,++sp,str_nmake(0.0)); |
655 | #endif /* lint */ |
656 | } |
657 | return sp; |
658 | } |
659 | |
660 | int |
ff8e2863 |
661 | do_truncate(str,arg,gimme,arglast) |
662 | STR *str; |
663 | register ARG *arg; |
664 | int gimme; |
665 | int *arglast; |
666 | { |
667 | register ARRAY *ary = stack; |
668 | register int sp = arglast[0] + 1; |
669 | off_t len = (off_t)str_gnum(ary->ary_array[sp+1]); |
670 | int result = 1; |
671 | STAB *tmpstab; |
672 | |
673 | #if defined(TRUNCATE) || defined(CHSIZE) || defined(F_FREESP) |
674 | #ifdef TRUNCATE |
675 | if ((arg[1].arg_type & A_MASK) == A_WORD) { |
676 | tmpstab = arg[1].arg_ptr.arg_stab; |
677 | if (!stab_io(tmpstab) || |
678 | ftruncate(fileno(stab_io(tmpstab)->ifp), len) < 0) |
679 | result = 0; |
680 | } |
681 | else if (truncate(str_get(ary->ary_array[sp]), len) < 0) |
682 | result = 0; |
683 | #else |
684 | #ifndef CHSIZE |
685 | #define chsize(f,l) fcntl(f,F_FREESP,l) |
686 | #endif |
687 | if ((arg[1].arg_type & A_MASK) == A_WORD) { |
688 | tmpstab = arg[1].arg_ptr.arg_stab; |
689 | if (!stab_io(tmpstab) || |
690 | chsize(fileno(stab_io(tmpstab)->ifp), len) < 0) |
691 | result = 0; |
692 | } |
693 | else { |
694 | int tmpfd; |
695 | |
696 | if ((tmpfd = open(str_get(ary->ary_array[sp]), 0)) < 0) |
697 | result = 0; |
698 | else { |
699 | if (chsize(tmpfd, len) < 0) |
700 | result = 0; |
701 | close(tmpfd); |
702 | } |
703 | } |
704 | #endif |
705 | |
706 | if (result) |
707 | str_sset(str,&str_yes); |
708 | else |
709 | str_sset(str,&str_undef); |
710 | STABSET(str); |
711 | ary->ary_array[sp] = str; |
712 | return sp; |
713 | #else |
714 | fatal("truncate not implemented"); |
715 | #endif |
716 | } |
717 | |
718 | int |
a687059c |
719 | looks_like_number(str) |
720 | STR *str; |
721 | { |
722 | register char *s; |
723 | register char *send; |
724 | |
725 | if (!str->str_pok) |
726 | return TRUE; |
727 | s = str->str_ptr; |
728 | send = s + str->str_cur; |
729 | while (isspace(*s)) |
730 | s++; |
731 | if (s >= send) |
732 | return FALSE; |
733 | if (*s == '+' || *s == '-') |
734 | s++; |
735 | while (isdigit(*s)) |
736 | s++; |
737 | if (s == send) |
738 | return TRUE; |
739 | if (*s == '.') |
740 | s++; |
741 | else if (s == str->str_ptr) |
742 | return FALSE; |
743 | while (isdigit(*s)) |
744 | s++; |
745 | if (s == send) |
746 | return TRUE; |
747 | if (*s == 'e' || *s == 'E') { |
748 | s++; |
749 | if (*s == '+' || *s == '-') |
750 | s++; |
751 | while (isdigit(*s)) |
752 | s++; |
753 | } |
754 | while (isspace(*s)) |
755 | s++; |
756 | if (s >= send) |
757 | return TRUE; |
758 | return FALSE; |
759 | } |
760 | |
761 | bool |
762 | do_print(str,fp) |
763 | register STR *str; |
764 | FILE *fp; |
765 | { |
766 | register char *tmps; |
767 | |
768 | if (!fp) { |
769 | if (dowarn) |
770 | warn("print to unopened file"); |
771 | return FALSE; |
772 | } |
773 | if (!str) |
ff8e2863 |
774 | return TRUE; |
a687059c |
775 | if (ofmt && |
776 | ((str->str_nok && str->str_u.str_nval != 0.0) |
ff8e2863 |
777 | || (looks_like_number(str) && str_gnum(str) != 0.0) ) ) { |
a687059c |
778 | fprintf(fp, ofmt, str->str_u.str_nval); |
ff8e2863 |
779 | return !ferror(fp); |
780 | } |
a687059c |
781 | else { |
782 | tmps = str_get(str); |
783 | if (*tmps == 'S' && tmps[1] == 't' && tmps[2] == 'a' && tmps[3] == 'b' |
784 | && str->str_cur == sizeof(STBP) && strlen(tmps) < str->str_cur) { |
785 | tmps = stab_name(((STAB*)str)); /* a stab value, be nice */ |
786 | str = ((STAB*)str)->str_magic; |
787 | putc('*',fp); |
788 | } |
ff8e2863 |
789 | if (str->str_cur && (fwrite(tmps,1,str->str_cur,fp) == 0 || ferror(fp))) |
a687059c |
790 | return FALSE; |
791 | } |
792 | return TRUE; |
793 | } |
794 | |
795 | bool |
796 | do_aprint(arg,fp,arglast) |
797 | register ARG *arg; |
798 | register FILE *fp; |
799 | int *arglast; |
800 | { |
801 | register STR **st = stack->ary_array; |
802 | register int sp = arglast[1]; |
803 | register int retval; |
804 | register int items = arglast[2] - sp; |
805 | |
806 | if (!fp) { |
807 | if (dowarn) |
808 | warn("print to unopened file"); |
809 | return FALSE; |
810 | } |
811 | st += ++sp; |
812 | if (arg->arg_type == O_PRTF) { |
813 | do_sprintf(arg->arg_ptr.arg_str,items,st); |
814 | retval = do_print(arg->arg_ptr.arg_str,fp); |
815 | } |
816 | else { |
817 | retval = (items <= 0); |
818 | for (; items > 0; items--,st++) { |
819 | if (retval && ofslen) { |
ff8e2863 |
820 | if (fwrite(ofs, 1, ofslen, fp) == 0 || ferror(fp)) { |
a687059c |
821 | retval = FALSE; |
822 | break; |
823 | } |
824 | } |
825 | if (!(retval = do_print(*st, fp))) |
826 | break; |
827 | } |
828 | if (retval && orslen) |
ff8e2863 |
829 | if (fwrite(ors, 1, orslen, fp) == 0 || ferror(fp)) |
a687059c |
830 | retval = FALSE; |
831 | } |
832 | return retval; |
833 | } |
834 | |
835 | int |
836 | mystat(arg,str) |
837 | ARG *arg; |
838 | STR *str; |
839 | { |
840 | STIO *stio; |
841 | |
842 | if (arg[1].arg_type & A_DONT) { |
843 | stio = stab_io(arg[1].arg_ptr.arg_stab); |
844 | if (stio && stio->ifp) { |
845 | statstab = arg[1].arg_ptr.arg_stab; |
846 | str_set(statname,""); |
847 | return fstat(fileno(stio->ifp), &statcache); |
848 | } |
849 | else { |
850 | if (arg[1].arg_ptr.arg_stab == defstab) |
851 | return 0; |
852 | if (dowarn) |
853 | warn("Stat on unopened file <%s>", |
854 | stab_name(arg[1].arg_ptr.arg_stab)); |
855 | statstab = Nullstab; |
856 | str_set(statname,""); |
857 | return -1; |
858 | } |
859 | } |
860 | else { |
861 | statstab = Nullstab; |
862 | str_sset(statname,str); |
863 | return stat(str_get(str),&statcache); |
864 | } |
865 | } |
866 | |
867 | STR * |
868 | do_fttext(arg,str) |
869 | register ARG *arg; |
870 | STR *str; |
871 | { |
872 | int i; |
873 | int len; |
874 | int odd = 0; |
875 | STDCHAR tbuf[512]; |
876 | register STDCHAR *s; |
877 | register STIO *stio; |
878 | |
879 | if (arg[1].arg_type & A_DONT) { |
880 | if (arg[1].arg_ptr.arg_stab == defstab) { |
881 | if (statstab) |
882 | stio = stab_io(statstab); |
883 | else { |
884 | str = statname; |
885 | goto really_filename; |
886 | } |
887 | } |
888 | else { |
889 | statstab = arg[1].arg_ptr.arg_stab; |
890 | str_set(statname,""); |
891 | stio = stab_io(statstab); |
892 | } |
893 | if (stio && stio->ifp) { |
894 | #ifdef STDSTDIO |
895 | fstat(fileno(stio->ifp),&statcache); |
896 | if (stio->ifp->_cnt <= 0) { |
897 | i = getc(stio->ifp); |
898 | if (i != EOF) |
899 | (void)ungetc(i,stio->ifp); |
900 | } |
901 | if (stio->ifp->_cnt <= 0) /* null file is anything */ |
902 | return &str_yes; |
903 | len = stio->ifp->_cnt + (stio->ifp->_ptr - stio->ifp->_base); |
904 | s = stio->ifp->_base; |
905 | #else |
906 | fatal("-T and -B not implemented on filehandles\n"); |
907 | #endif |
908 | } |
909 | else { |
910 | if (dowarn) |
911 | warn("Test on unopened file <%s>", |
912 | stab_name(arg[1].arg_ptr.arg_stab)); |
913 | return &str_undef; |
914 | } |
915 | } |
916 | else { |
917 | statstab = Nullstab; |
918 | str_sset(statname,str); |
919 | really_filename: |
920 | i = open(str_get(str),0); |
921 | if (i < 0) |
922 | return &str_undef; |
923 | fstat(i,&statcache); |
924 | len = read(i,tbuf,512); |
925 | if (len <= 0) /* null file is anything */ |
926 | return &str_yes; |
927 | (void)close(i); |
928 | s = tbuf; |
929 | } |
930 | |
931 | /* now scan s to look for textiness */ |
932 | |
933 | for (i = 0; i < len; i++,s++) { |
934 | if (!*s) { /* null never allowed in text */ |
935 | odd += len; |
936 | break; |
937 | } |
938 | else if (*s & 128) |
939 | odd++; |
940 | else if (*s < 32 && |
941 | *s != '\n' && *s != '\r' && *s != '\b' && |
942 | *s != '\t' && *s != '\f' && *s != 27) |
943 | odd++; |
944 | } |
945 | |
946 | if ((odd * 10 > len) == (arg->arg_type == O_FTTEXT)) /* allow 10% odd */ |
947 | return &str_no; |
948 | else |
949 | return &str_yes; |
950 | } |
951 | |
952 | bool |
953 | do_aexec(really,arglast) |
954 | STR *really; |
955 | int *arglast; |
956 | { |
957 | register STR **st = stack->ary_array; |
958 | register int sp = arglast[1]; |
959 | register int items = arglast[2] - sp; |
960 | register char **a; |
961 | char **argv; |
962 | char *tmps; |
963 | |
964 | if (items) { |
965 | New(401,argv, items+1, char*); |
966 | a = argv; |
967 | for (st += ++sp; items > 0; items--,st++) { |
968 | if (*st) |
969 | *a++ = str_get(*st); |
970 | else |
971 | *a++ = ""; |
972 | } |
973 | *a = Nullch; |
974 | #ifdef TAINT |
975 | if (*argv[0] != '/') /* will execvp use PATH? */ |
976 | taintenv(); /* testing IFS here is overkill, probably */ |
977 | #endif |
978 | if (really && *(tmps = str_get(really))) |
979 | execvp(tmps,argv); |
980 | else |
981 | execvp(argv[0],argv); |
982 | Safefree(argv); |
983 | } |
984 | return FALSE; |
985 | } |
986 | |
ff8e2863 |
987 | static char **Argv = Null(char **); |
988 | static char *Cmd = Nullch; |
989 | |
990 | int |
991 | do_execfree() |
992 | { |
993 | if (Argv) { |
994 | Safefree(Argv); |
995 | Argv = Null(char **); |
996 | } |
997 | if (Cmd) { |
998 | Safefree(Cmd); |
999 | Cmd = Nullch; |
1000 | } |
1001 | } |
1002 | |
a687059c |
1003 | bool |
1004 | do_exec(cmd) |
1005 | char *cmd; |
1006 | { |
1007 | register char **a; |
1008 | register char *s; |
a687059c |
1009 | char flags[10]; |
1010 | |
1011 | #ifdef TAINT |
1012 | taintenv(); |
1013 | taintproper("Insecure dependency in exec"); |
1014 | #endif |
1015 | |
1016 | /* save an extra exec if possible */ |
1017 | |
bf38876a |
1018 | #ifdef CSH |
1019 | if (strnEQ(cmd,cshname,cshlen) && strnEQ(cmd+cshlen," -c",3)) { |
a687059c |
1020 | strcpy(flags,"-c"); |
bf38876a |
1021 | s = cmd+cshlen+3; |
a687059c |
1022 | if (*s == 'f') { |
1023 | s++; |
1024 | strcat(flags,"f"); |
1025 | } |
1026 | if (*s == ' ') |
1027 | s++; |
1028 | if (*s++ == '\'') { |
1029 | char *ncmd = s; |
1030 | |
1031 | while (*s) |
1032 | s++; |
1033 | if (s[-1] == '\n') |
1034 | *--s = '\0'; |
1035 | if (s[-1] == '\'') { |
1036 | *--s = '\0'; |
bf38876a |
1037 | execl(cshname,"csh", flags,ncmd,(char*)0); |
a687059c |
1038 | *s = '\''; |
1039 | return FALSE; |
1040 | } |
1041 | } |
1042 | } |
bf38876a |
1043 | #endif /* CSH */ |
a687059c |
1044 | |
1045 | /* see if there are shell metacharacters in it */ |
1046 | |
63f2c1e1 |
1047 | for (s = cmd; *s && isalpha(*s); s++) ; /* catch VAR=val gizmo */ |
1048 | if (*s == '=') |
1049 | goto doshell; |
a687059c |
1050 | for (s = cmd; *s; s++) { |
1051 | if (*s != ' ' && !isalpha(*s) && index("$&*(){}[]'\";\\|?<>~`\n",*s)) { |
1052 | if (*s == '\n' && !s[1]) { |
1053 | *s = '\0'; |
1054 | break; |
1055 | } |
1056 | doshell: |
1057 | execl("/bin/sh","sh","-c",cmd,(char*)0); |
1058 | return FALSE; |
1059 | } |
1060 | } |
ff8e2863 |
1061 | New(402,Argv, (s - cmd) / 2 + 2, char*); |
1062 | Cmd = nsavestr(cmd, s-cmd); |
1063 | a = Argv; |
1064 | for (s = Cmd; *s;) { |
a687059c |
1065 | while (*s && isspace(*s)) s++; |
1066 | if (*s) |
1067 | *(a++) = s; |
1068 | while (*s && !isspace(*s)) s++; |
1069 | if (*s) |
1070 | *s++ = '\0'; |
1071 | } |
1072 | *a = Nullch; |
ff8e2863 |
1073 | if (Argv[0]) { |
1074 | execvp(Argv[0],Argv); |
b1248f16 |
1075 | if (errno == ENOEXEC) { /* for system V NIH syndrome */ |
ff8e2863 |
1076 | do_execfree(); |
a687059c |
1077 | goto doshell; |
b1248f16 |
1078 | } |
a687059c |
1079 | } |
ff8e2863 |
1080 | do_execfree(); |
a687059c |
1081 | return FALSE; |
1082 | } |
1083 | |
1084 | #ifdef SOCKET |
1085 | int |
1086 | do_socket(stab, arglast) |
1087 | STAB *stab; |
1088 | int *arglast; |
1089 | { |
1090 | register STR **st = stack->ary_array; |
1091 | register int sp = arglast[1]; |
1092 | register STIO *stio; |
1093 | int domain, type, protocol, fd; |
1094 | |
1095 | if (!stab) |
1096 | return FALSE; |
1097 | |
1098 | stio = stab_io(stab); |
1099 | if (!stio) |
1100 | stio = stab_io(stab) = stio_new(); |
1101 | else if (stio->ifp) |
1102 | do_close(stab,FALSE); |
1103 | |
1104 | domain = (int)str_gnum(st[++sp]); |
1105 | type = (int)str_gnum(st[++sp]); |
1106 | protocol = (int)str_gnum(st[++sp]); |
1107 | #ifdef TAINT |
1108 | taintproper("Insecure dependency in socket"); |
1109 | #endif |
1110 | fd = socket(domain,type,protocol); |
1111 | if (fd < 0) |
1112 | return FALSE; |
1113 | stio->ifp = fdopen(fd, "r"); /* stdio gets confused about sockets */ |
1114 | stio->ofp = fdopen(fd, "w"); |
1115 | stio->type = 's'; |
1116 | |
1117 | return TRUE; |
1118 | } |
1119 | |
1120 | int |
1121 | do_bind(stab, arglast) |
1122 | STAB *stab; |
1123 | int *arglast; |
1124 | { |
1125 | register STR **st = stack->ary_array; |
1126 | register int sp = arglast[1]; |
1127 | register STIO *stio; |
1128 | char *addr; |
1129 | |
1130 | if (!stab) |
1131 | goto nuts; |
1132 | |
1133 | stio = stab_io(stab); |
1134 | if (!stio || !stio->ifp) |
1135 | goto nuts; |
1136 | |
1137 | addr = str_get(st[++sp]); |
1138 | #ifdef TAINT |
1139 | taintproper("Insecure dependency in bind"); |
1140 | #endif |
1141 | return bind(fileno(stio->ifp), addr, st[sp]->str_cur) >= 0; |
1142 | |
1143 | nuts: |
1144 | if (dowarn) |
1145 | warn("bind() on closed fd"); |
1146 | return FALSE; |
1147 | |
1148 | } |
1149 | |
1150 | int |
1151 | do_connect(stab, arglast) |
1152 | STAB *stab; |
1153 | int *arglast; |
1154 | { |
1155 | register STR **st = stack->ary_array; |
1156 | register int sp = arglast[1]; |
1157 | register STIO *stio; |
1158 | char *addr; |
1159 | |
1160 | if (!stab) |
1161 | goto nuts; |
1162 | |
1163 | stio = stab_io(stab); |
1164 | if (!stio || !stio->ifp) |
1165 | goto nuts; |
1166 | |
1167 | addr = str_get(st[++sp]); |
1168 | #ifdef TAINT |
1169 | taintproper("Insecure dependency in connect"); |
1170 | #endif |
1171 | return connect(fileno(stio->ifp), addr, st[sp]->str_cur) >= 0; |
1172 | |
1173 | nuts: |
1174 | if (dowarn) |
1175 | warn("connect() on closed fd"); |
1176 | return FALSE; |
1177 | |
1178 | } |
1179 | |
1180 | int |
1181 | do_listen(stab, arglast) |
1182 | STAB *stab; |
1183 | int *arglast; |
1184 | { |
1185 | register STR **st = stack->ary_array; |
1186 | register int sp = arglast[1]; |
1187 | register STIO *stio; |
1188 | int backlog; |
1189 | |
1190 | if (!stab) |
1191 | goto nuts; |
1192 | |
1193 | stio = stab_io(stab); |
1194 | if (!stio || !stio->ifp) |
1195 | goto nuts; |
1196 | |
1197 | backlog = (int)str_gnum(st[++sp]); |
1198 | return listen(fileno(stio->ifp), backlog) >= 0; |
1199 | |
1200 | nuts: |
1201 | if (dowarn) |
1202 | warn("listen() on closed fd"); |
1203 | return FALSE; |
1204 | } |
1205 | |
1206 | void |
1207 | do_accept(str, nstab, gstab) |
1208 | STR *str; |
1209 | STAB *nstab; |
1210 | STAB *gstab; |
1211 | { |
1212 | register STIO *nstio; |
1213 | register STIO *gstio; |
1214 | int len = sizeof buf; |
1215 | int fd; |
1216 | |
1217 | if (!nstab) |
1218 | goto badexit; |
1219 | if (!gstab) |
1220 | goto nuts; |
1221 | |
1222 | gstio = stab_io(gstab); |
1223 | nstio = stab_io(nstab); |
1224 | |
1225 | if (!gstio || !gstio->ifp) |
1226 | goto nuts; |
1227 | if (!nstio) |
1228 | nstio = stab_io(nstab) = stio_new(); |
1229 | else if (nstio->ifp) |
1230 | do_close(nstab,FALSE); |
1231 | |
1232 | fd = accept(fileno(gstio->ifp),buf,&len); |
1233 | if (fd < 0) |
1234 | goto badexit; |
1235 | nstio->ifp = fdopen(fd, "r"); |
1236 | nstio->ofp = fdopen(fd, "w"); |
1237 | nstio->type = 's'; |
1238 | |
1239 | str_nset(str, buf, len); |
1240 | return; |
1241 | |
1242 | nuts: |
1243 | if (dowarn) |
1244 | warn("accept() on closed fd"); |
1245 | badexit: |
1246 | str_sset(str,&str_undef); |
1247 | return; |
1248 | } |
1249 | |
1250 | int |
1251 | do_shutdown(stab, arglast) |
1252 | STAB *stab; |
1253 | int *arglast; |
1254 | { |
1255 | register STR **st = stack->ary_array; |
1256 | register int sp = arglast[1]; |
1257 | register STIO *stio; |
1258 | int how; |
1259 | |
1260 | if (!stab) |
1261 | goto nuts; |
1262 | |
1263 | stio = stab_io(stab); |
1264 | if (!stio || !stio->ifp) |
1265 | goto nuts; |
1266 | |
1267 | how = (int)str_gnum(st[++sp]); |
1268 | return shutdown(fileno(stio->ifp), how) >= 0; |
1269 | |
1270 | nuts: |
1271 | if (dowarn) |
1272 | warn("shutdown() on closed fd"); |
1273 | return FALSE; |
1274 | |
1275 | } |
1276 | |
1277 | int |
1278 | do_sopt(optype, stab, arglast) |
1279 | int optype; |
1280 | STAB *stab; |
1281 | int *arglast; |
1282 | { |
1283 | register STR **st = stack->ary_array; |
1284 | register int sp = arglast[1]; |
1285 | register STIO *stio; |
1286 | int fd; |
1287 | int lvl; |
1288 | int optname; |
1289 | |
1290 | if (!stab) |
1291 | goto nuts; |
1292 | |
1293 | stio = stab_io(stab); |
1294 | if (!stio || !stio->ifp) |
1295 | goto nuts; |
1296 | |
1297 | fd = fileno(stio->ifp); |
1298 | lvl = (int)str_gnum(st[sp+1]); |
1299 | optname = (int)str_gnum(st[sp+2]); |
1300 | switch (optype) { |
1301 | case O_GSOCKOPT: |
1302 | st[sp] = str_2static(str_new(257)); |
1303 | st[sp]->str_cur = 256; |
bf38876a |
1304 | st[sp]->str_pok = 1; |
a687059c |
1305 | if (getsockopt(fd, lvl, optname, st[sp]->str_ptr, &st[sp]->str_cur) < 0) |
1306 | goto nuts; |
1307 | break; |
1308 | case O_SSOCKOPT: |
1309 | st[sp] = st[sp+3]; |
1310 | if (setsockopt(fd, lvl, optname, st[sp]->str_ptr, st[sp]->str_cur) < 0) |
1311 | goto nuts; |
1312 | st[sp] = &str_yes; |
1313 | break; |
1314 | } |
1315 | |
1316 | return sp; |
1317 | |
1318 | nuts: |
1319 | if (dowarn) |
bf38876a |
1320 | warn("[gs]etsockopt() on closed fd"); |
a687059c |
1321 | st[sp] = &str_undef; |
1322 | return sp; |
1323 | |
1324 | } |
1325 | |
1326 | int |
1327 | do_getsockname(optype, stab, arglast) |
1328 | int optype; |
1329 | STAB *stab; |
1330 | int *arglast; |
1331 | { |
1332 | register STR **st = stack->ary_array; |
1333 | register int sp = arglast[1]; |
1334 | register STIO *stio; |
1335 | int fd; |
1336 | |
1337 | if (!stab) |
1338 | goto nuts; |
1339 | |
1340 | stio = stab_io(stab); |
1341 | if (!stio || !stio->ifp) |
1342 | goto nuts; |
1343 | |
1344 | st[sp] = str_2static(str_new(257)); |
1345 | st[sp]->str_cur = 256; |
bf38876a |
1346 | st[sp]->str_pok = 1; |
a687059c |
1347 | fd = fileno(stio->ifp); |
1348 | switch (optype) { |
1349 | case O_GETSOCKNAME: |
1350 | if (getsockname(fd, st[sp]->str_ptr, &st[sp]->str_cur) < 0) |
ff8e2863 |
1351 | goto nuts2; |
a687059c |
1352 | break; |
1353 | case O_GETPEERNAME: |
1354 | if (getpeername(fd, st[sp]->str_ptr, &st[sp]->str_cur) < 0) |
ff8e2863 |
1355 | goto nuts2; |
a687059c |
1356 | break; |
1357 | } |
1358 | |
1359 | return sp; |
1360 | |
1361 | nuts: |
1362 | if (dowarn) |
bf38876a |
1363 | warn("get{sock,peer}name() on closed fd"); |
ff8e2863 |
1364 | nuts2: |
a687059c |
1365 | st[sp] = &str_undef; |
1366 | return sp; |
1367 | |
1368 | } |
1369 | |
1370 | int |
1371 | do_ghent(which,gimme,arglast) |
1372 | int which; |
1373 | int gimme; |
1374 | int *arglast; |
1375 | { |
1376 | register ARRAY *ary = stack; |
1377 | register int sp = arglast[0]; |
1378 | register char **elem; |
1379 | register STR *str; |
bf38876a |
1380 | struct hostent *gethostbyname(); |
a687059c |
1381 | struct hostent *gethostbyaddr(); |
1382 | #ifdef GETHOSTENT |
1383 | struct hostent *gethostent(); |
1384 | #endif |
1385 | struct hostent *hent; |
1386 | unsigned long len; |
1387 | |
1388 | if (gimme != G_ARRAY) { |
1389 | astore(ary, ++sp, str_static(&str_undef)); |
1390 | return sp; |
1391 | } |
1392 | |
1393 | if (which == O_GHBYNAME) { |
1394 | char *name = str_get(ary->ary_array[sp+1]); |
1395 | |
1396 | hent = gethostbyname(name); |
1397 | } |
1398 | else if (which == O_GHBYADDR) { |
1399 | STR *addrstr = ary->ary_array[sp+1]; |
1400 | int addrtype = (int)str_gnum(ary->ary_array[sp+2]); |
1401 | char *addr = str_get(addrstr); |
1402 | |
1403 | hent = gethostbyaddr(addr,addrstr->str_cur,addrtype); |
1404 | } |
1405 | else |
1406 | #ifdef GETHOSTENT |
1407 | hent = gethostent(); |
1408 | #else |
1409 | fatal("gethostent not implemented"); |
1410 | #endif |
1411 | if (hent) { |
1412 | #ifndef lint |
1413 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1414 | str_set(str, hent->h_name); |
1415 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1416 | for (elem = hent->h_aliases; *elem; elem++) { |
1417 | str_cat(str, *elem); |
1418 | if (elem[1]) |
1419 | str_ncat(str," ",1); |
1420 | } |
1421 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1422 | str_numset(str, (double)hent->h_addrtype); |
1423 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1424 | len = hent->h_length; |
1425 | str_numset(str, (double)len); |
1426 | #ifdef h_addr |
1427 | for (elem = hent->h_addr_list; *elem; elem++) { |
1428 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1429 | str_nset(str, *elem, len); |
1430 | } |
1431 | #else |
1432 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1433 | str_nset(str, hent->h_addr, len); |
1434 | #endif /* h_addr */ |
1435 | #else /* lint */ |
1436 | elem = Nullch; |
1437 | elem = elem; |
1438 | (void)astore(ary, ++sp, str_static(&str_no)); |
1439 | #endif /* lint */ |
1440 | } |
1441 | |
1442 | return sp; |
1443 | } |
1444 | |
1445 | int |
1446 | do_gnent(which,gimme,arglast) |
1447 | int which; |
1448 | int gimme; |
1449 | int *arglast; |
1450 | { |
1451 | register ARRAY *ary = stack; |
1452 | register int sp = arglast[0]; |
1453 | register char **elem; |
1454 | register STR *str; |
1455 | struct netent *getnetbyname(); |
1456 | struct netent *getnetbyaddr(); |
1457 | struct netent *getnetent(); |
1458 | struct netent *nent; |
1459 | |
1460 | if (gimme != G_ARRAY) { |
1461 | astore(ary, ++sp, str_static(&str_undef)); |
1462 | return sp; |
1463 | } |
1464 | |
1465 | if (which == O_GNBYNAME) { |
1466 | char *name = str_get(ary->ary_array[sp+1]); |
1467 | |
1468 | nent = getnetbyname(name); |
1469 | } |
1470 | else if (which == O_GNBYADDR) { |
1471 | STR *addrstr = ary->ary_array[sp+1]; |
1472 | int addrtype = (int)str_gnum(ary->ary_array[sp+2]); |
1473 | char *addr = str_get(addrstr); |
1474 | |
1475 | nent = getnetbyaddr(addr,addrtype); |
1476 | } |
1477 | else |
1478 | nent = getnetent(); |
1479 | |
1480 | if (nent) { |
1481 | #ifndef lint |
1482 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1483 | str_set(str, nent->n_name); |
1484 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1485 | for (elem = nent->n_aliases; *elem; elem++) { |
1486 | str_cat(str, *elem); |
1487 | if (elem[1]) |
1488 | str_ncat(str," ",1); |
1489 | } |
1490 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1491 | str_numset(str, (double)nent->n_addrtype); |
1492 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1493 | str_numset(str, (double)nent->n_net); |
1494 | #else /* lint */ |
1495 | elem = Nullch; |
1496 | elem = elem; |
1497 | (void)astore(ary, ++sp, str_static(&str_no)); |
1498 | #endif /* lint */ |
1499 | } |
1500 | |
1501 | return sp; |
1502 | } |
1503 | |
1504 | int |
1505 | do_gpent(which,gimme,arglast) |
1506 | int which; |
1507 | int gimme; |
1508 | int *arglast; |
1509 | { |
1510 | register ARRAY *ary = stack; |
1511 | register int sp = arglast[0]; |
1512 | register char **elem; |
1513 | register STR *str; |
1514 | struct protoent *getprotobyname(); |
1515 | struct protoent *getprotobynumber(); |
1516 | struct protoent *getprotoent(); |
1517 | struct protoent *pent; |
1518 | |
1519 | if (gimme != G_ARRAY) { |
1520 | astore(ary, ++sp, str_static(&str_undef)); |
1521 | return sp; |
1522 | } |
1523 | |
1524 | if (which == O_GPBYNAME) { |
1525 | char *name = str_get(ary->ary_array[sp+1]); |
1526 | |
1527 | pent = getprotobyname(name); |
1528 | } |
1529 | else if (which == O_GPBYNUMBER) { |
1530 | int proto = (int)str_gnum(ary->ary_array[sp+1]); |
1531 | |
1532 | pent = getprotobynumber(proto); |
1533 | } |
1534 | else |
1535 | pent = getprotoent(); |
1536 | |
1537 | if (pent) { |
1538 | #ifndef lint |
1539 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1540 | str_set(str, pent->p_name); |
1541 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1542 | for (elem = pent->p_aliases; *elem; elem++) { |
1543 | str_cat(str, *elem); |
1544 | if (elem[1]) |
1545 | str_ncat(str," ",1); |
1546 | } |
1547 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1548 | str_numset(str, (double)pent->p_proto); |
1549 | #else /* lint */ |
1550 | elem = Nullch; |
1551 | elem = elem; |
1552 | (void)astore(ary, ++sp, str_static(&str_no)); |
1553 | #endif /* lint */ |
1554 | } |
1555 | |
1556 | return sp; |
1557 | } |
1558 | |
1559 | int |
1560 | do_gsent(which,gimme,arglast) |
1561 | int which; |
1562 | int gimme; |
1563 | int *arglast; |
1564 | { |
1565 | register ARRAY *ary = stack; |
1566 | register int sp = arglast[0]; |
1567 | register char **elem; |
1568 | register STR *str; |
1569 | struct servent *getservbyname(); |
1570 | struct servent *getservbynumber(); |
1571 | struct servent *getservent(); |
1572 | struct servent *sent; |
1573 | |
1574 | if (gimme != G_ARRAY) { |
1575 | astore(ary, ++sp, str_static(&str_undef)); |
1576 | return sp; |
1577 | } |
1578 | |
1579 | if (which == O_GSBYNAME) { |
1580 | char *name = str_get(ary->ary_array[sp+1]); |
1581 | char *proto = str_get(ary->ary_array[sp+2]); |
1582 | |
1583 | if (proto && !*proto) |
1584 | proto = Nullch; |
1585 | |
1586 | sent = getservbyname(name,proto); |
1587 | } |
1588 | else if (which == O_GSBYPORT) { |
1589 | int port = (int)str_gnum(ary->ary_array[sp+1]); |
1590 | char *proto = str_get(ary->ary_array[sp+2]); |
1591 | |
1592 | sent = getservbyport(port,proto); |
1593 | } |
1594 | else |
1595 | sent = getservent(); |
1596 | if (sent) { |
1597 | #ifndef lint |
1598 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1599 | str_set(str, sent->s_name); |
1600 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1601 | for (elem = sent->s_aliases; *elem; elem++) { |
1602 | str_cat(str, *elem); |
1603 | if (elem[1]) |
1604 | str_ncat(str," ",1); |
1605 | } |
1606 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1607 | #ifdef NTOHS |
1608 | str_numset(str, (double)ntohs(sent->s_port)); |
1609 | #else |
1610 | str_numset(str, (double)(sent->s_port)); |
1611 | #endif |
1612 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1613 | str_set(str, sent->s_proto); |
1614 | #else /* lint */ |
1615 | elem = Nullch; |
1616 | elem = elem; |
1617 | (void)astore(ary, ++sp, str_static(&str_no)); |
1618 | #endif /* lint */ |
1619 | } |
1620 | |
1621 | return sp; |
1622 | } |
1623 | |
ff8e2863 |
1624 | #endif /* SOCKET */ |
1625 | |
1626 | #ifdef SELECT |
a687059c |
1627 | int |
1628 | do_select(gimme,arglast) |
1629 | int gimme; |
1630 | int *arglast; |
1631 | { |
1632 | register STR **st = stack->ary_array; |
1633 | register int sp = arglast[0]; |
1634 | register int i; |
1635 | register int j; |
1636 | register char *s; |
1637 | register STR *str; |
1638 | double value; |
1639 | int maxlen = 0; |
1640 | int nfound; |
1641 | struct timeval timebuf; |
1642 | struct timeval *tbuf = &timebuf; |
663a0e37 |
1643 | int growsize; |
1644 | #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678 |
1645 | int masksize; |
1646 | int offset; |
1647 | char *fd_sets[4]; |
1648 | int k; |
1649 | |
1650 | #if BYTEORDER & 0xf0000 |
1651 | #define ORDERBYTE (0x88888888 - BYTEORDER) |
1652 | #else |
1653 | #define ORDERBYTE (0x4444 - BYTEORDER) |
1654 | #endif |
1655 | |
1656 | #endif |
a687059c |
1657 | |
1658 | for (i = 1; i <= 3; i++) { |
663a0e37 |
1659 | j = st[sp+i]->str_cur; |
a687059c |
1660 | if (maxlen < j) |
1661 | maxlen = j; |
1662 | } |
663a0e37 |
1663 | |
1664 | #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678 |
1665 | growsize = maxlen; /* little endians can use vecs directly */ |
1666 | #else |
1667 | #ifdef NFDBITS |
1668 | |
1669 | #ifndef NBBY |
1670 | #define NBBY 8 |
1671 | #endif |
1672 | |
1673 | masksize = NFDBITS / NBBY; |
1674 | #else |
1675 | masksize = sizeof(long); /* documented int, everyone seems to use long */ |
1676 | #endif |
1677 | growsize = maxlen + (masksize - (maxlen % masksize)); |
1678 | Zero(&fd_sets[0], 4, char*); |
1679 | #endif |
1680 | |
a687059c |
1681 | for (i = 1; i <= 3; i++) { |
1682 | str = st[sp+i]; |
1683 | j = str->str_len; |
663a0e37 |
1684 | if (j < growsize) { |
a687059c |
1685 | if (str->str_pok) { |
ff8e2863 |
1686 | Str_Grow(str,growsize); |
a687059c |
1687 | s = str_get(str) + j; |
663a0e37 |
1688 | while (++j <= growsize) { |
a687059c |
1689 | *s++ = '\0'; |
1690 | } |
1691 | } |
1692 | else if (str->str_ptr) { |
1693 | Safefree(str->str_ptr); |
1694 | str->str_ptr = Nullch; |
1695 | } |
1696 | } |
663a0e37 |
1697 | #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678 |
1698 | s = str->str_ptr; |
1699 | if (s) { |
1700 | New(403, fd_sets[i], growsize, char); |
1701 | for (offset = 0; offset < growsize; offset += masksize) { |
1702 | for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4)) |
1703 | fd_sets[i][j+offset] = s[(k % masksize) + offset]; |
1704 | } |
1705 | } |
1706 | #endif |
a687059c |
1707 | } |
1708 | str = st[sp+4]; |
1709 | if (str->str_nok || str->str_pok) { |
1710 | value = str_gnum(str); |
1711 | if (value < 0.0) |
1712 | value = 0.0; |
1713 | timebuf.tv_sec = (long)value; |
1714 | value -= (double)timebuf.tv_sec; |
1715 | timebuf.tv_usec = (long)(value * 1000000.0); |
1716 | } |
1717 | else |
1718 | tbuf = Null(struct timeval*); |
1719 | |
663a0e37 |
1720 | #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678 |
a687059c |
1721 | nfound = select( |
1722 | maxlen * 8, |
1723 | st[sp+1]->str_ptr, |
1724 | st[sp+2]->str_ptr, |
1725 | st[sp+3]->str_ptr, |
1726 | tbuf); |
663a0e37 |
1727 | #else |
1728 | nfound = select( |
1729 | maxlen * 8, |
1730 | fd_sets[1], |
1731 | fd_sets[2], |
1732 | fd_sets[3], |
1733 | tbuf); |
1734 | for (i = 1; i <= 3; i++) { |
1735 | if (fd_sets[i]) { |
1736 | str = st[sp+i]; |
1737 | s = str->str_ptr; |
1738 | for (offset = 0; offset < growsize; offset += masksize) { |
1739 | for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4)) |
1740 | s[(k % masksize) + offset] = fd_sets[i][j+offset]; |
1741 | } |
1742 | } |
1743 | } |
1744 | #endif |
a687059c |
1745 | |
1746 | st[++sp] = str_static(&str_no); |
1747 | str_numset(st[sp], (double)nfound); |
1748 | if (gimme == G_ARRAY && tbuf) { |
1749 | value = (double)(timebuf.tv_sec) + |
1750 | (double)(timebuf.tv_usec) / 1000000.0; |
1751 | st[++sp] = str_static(&str_no); |
1752 | str_numset(st[sp], value); |
1753 | } |
1754 | return sp; |
1755 | } |
ff8e2863 |
1756 | #endif /* SELECT */ |
a687059c |
1757 | |
ff8e2863 |
1758 | #ifdef SOCKET |
a687059c |
1759 | int |
1760 | do_spair(stab1, stab2, arglast) |
1761 | STAB *stab1; |
1762 | STAB *stab2; |
1763 | int *arglast; |
1764 | { |
1765 | register STR **st = stack->ary_array; |
1766 | register int sp = arglast[2]; |
1767 | register STIO *stio1; |
1768 | register STIO *stio2; |
1769 | int domain, type, protocol, fd[2]; |
1770 | |
1771 | if (!stab1 || !stab2) |
1772 | return FALSE; |
1773 | |
1774 | stio1 = stab_io(stab1); |
1775 | stio2 = stab_io(stab2); |
1776 | if (!stio1) |
1777 | stio1 = stab_io(stab1) = stio_new(); |
1778 | else if (stio1->ifp) |
1779 | do_close(stab1,FALSE); |
1780 | if (!stio2) |
1781 | stio2 = stab_io(stab2) = stio_new(); |
1782 | else if (stio2->ifp) |
1783 | do_close(stab2,FALSE); |
1784 | |
1785 | domain = (int)str_gnum(st[++sp]); |
1786 | type = (int)str_gnum(st[++sp]); |
1787 | protocol = (int)str_gnum(st[++sp]); |
1788 | #ifdef TAINT |
1789 | taintproper("Insecure dependency in socketpair"); |
1790 | #endif |
1791 | #ifdef SOCKETPAIR |
1792 | if (socketpair(domain,type,protocol,fd) < 0) |
1793 | return FALSE; |
1794 | #else |
1795 | fatal("Socketpair unimplemented"); |
1796 | #endif |
1797 | stio1->ifp = fdopen(fd[0], "r"); |
1798 | stio1->ofp = fdopen(fd[0], "w"); |
1799 | stio1->type = 's'; |
1800 | stio2->ifp = fdopen(fd[1], "r"); |
1801 | stio2->ofp = fdopen(fd[1], "w"); |
1802 | stio2->type = 's'; |
1803 | |
1804 | return TRUE; |
1805 | } |
1806 | |
1807 | #endif /* SOCKET */ |
1808 | |
1809 | int |
1810 | do_gpwent(which,gimme,arglast) |
1811 | int which; |
1812 | int gimme; |
1813 | int *arglast; |
1814 | { |
1815 | #ifdef I_PWD |
1816 | register ARRAY *ary = stack; |
1817 | register int sp = arglast[0]; |
a687059c |
1818 | register STR *str; |
1819 | struct passwd *getpwnam(); |
1820 | struct passwd *getpwuid(); |
1821 | struct passwd *getpwent(); |
1822 | struct passwd *pwent; |
a687059c |
1823 | |
1824 | if (gimme != G_ARRAY) { |
1825 | astore(ary, ++sp, str_static(&str_undef)); |
1826 | return sp; |
1827 | } |
1828 | |
1829 | if (which == O_GPWNAM) { |
1830 | char *name = str_get(ary->ary_array[sp+1]); |
1831 | |
1832 | pwent = getpwnam(name); |
1833 | } |
1834 | else if (which == O_GPWUID) { |
1835 | int uid = (int)str_gnum(ary->ary_array[sp+1]); |
1836 | |
1837 | pwent = getpwuid(uid); |
1838 | } |
1839 | else |
1840 | pwent = getpwent(); |
1841 | |
1842 | if (pwent) { |
1843 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1844 | str_set(str, pwent->pw_name); |
1845 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1846 | str_set(str, pwent->pw_passwd); |
1847 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1848 | str_numset(str, (double)pwent->pw_uid); |
1849 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1850 | str_numset(str, (double)pwent->pw_gid); |
1851 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
03a14243 |
1852 | #ifdef PWCHANGE |
1853 | str_numset(str, (double)pwent->pw_change); |
1854 | #else |
a687059c |
1855 | #ifdef PWQUOTA |
1856 | str_numset(str, (double)pwent->pw_quota); |
1857 | #else |
1858 | #ifdef PWAGE |
1859 | str_set(str, pwent->pw_age); |
1860 | #endif |
1861 | #endif |
03a14243 |
1862 | #endif |
a687059c |
1863 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
03a14243 |
1864 | #ifdef PWCLASS |
1865 | str_set(str,pwent->pw_class); |
1866 | #else |
a687059c |
1867 | str_set(str, pwent->pw_comment); |
03a14243 |
1868 | #endif |
a687059c |
1869 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1870 | str_set(str, pwent->pw_gecos); |
1871 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1872 | str_set(str, pwent->pw_dir); |
1873 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1874 | str_set(str, pwent->pw_shell); |
03a14243 |
1875 | #ifdef PWEXPIRE |
1876 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1877 | str_numset(str, (double)pwent->pw_expire); |
1878 | #endif |
a687059c |
1879 | } |
1880 | |
1881 | return sp; |
1882 | #else |
1883 | fatal("password routines not implemented"); |
1884 | #endif |
1885 | } |
1886 | |
1887 | int |
1888 | do_ggrent(which,gimme,arglast) |
1889 | int which; |
1890 | int gimme; |
1891 | int *arglast; |
1892 | { |
1893 | #ifdef I_GRP |
1894 | register ARRAY *ary = stack; |
1895 | register int sp = arglast[0]; |
1896 | register char **elem; |
1897 | register STR *str; |
1898 | struct group *getgrnam(); |
1899 | struct group *getgrgid(); |
1900 | struct group *getgrent(); |
1901 | struct group *grent; |
a687059c |
1902 | |
1903 | if (gimme != G_ARRAY) { |
1904 | astore(ary, ++sp, str_static(&str_undef)); |
1905 | return sp; |
1906 | } |
1907 | |
1908 | if (which == O_GGRNAM) { |
1909 | char *name = str_get(ary->ary_array[sp+1]); |
1910 | |
1911 | grent = getgrnam(name); |
1912 | } |
1913 | else if (which == O_GGRGID) { |
1914 | int gid = (int)str_gnum(ary->ary_array[sp+1]); |
1915 | |
1916 | grent = getgrgid(gid); |
1917 | } |
1918 | else |
1919 | grent = getgrent(); |
1920 | |
1921 | if (grent) { |
1922 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1923 | str_set(str, grent->gr_name); |
1924 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1925 | str_set(str, grent->gr_passwd); |
1926 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1927 | str_numset(str, (double)grent->gr_gid); |
1928 | (void)astore(ary, ++sp, str = str_static(&str_no)); |
1929 | for (elem = grent->gr_mem; *elem; elem++) { |
1930 | str_cat(str, *elem); |
1931 | if (elem[1]) |
1932 | str_ncat(str," ",1); |
1933 | } |
1934 | } |
1935 | |
1936 | return sp; |
1937 | #else |
1938 | fatal("group routines not implemented"); |
1939 | #endif |
1940 | } |
1941 | |
1942 | int |
1943 | do_dirop(optype,stab,gimme,arglast) |
1944 | int optype; |
1945 | STAB *stab; |
1946 | int gimme; |
1947 | int *arglast; |
1948 | { |
0d3e774c |
1949 | #if defined(DIRENT) && defined(READDIR) |
a687059c |
1950 | register ARRAY *ary = stack; |
1951 | register STR **st = ary->ary_array; |
1952 | register int sp = arglast[1]; |
1953 | register STIO *stio; |
1954 | long along; |
bf38876a |
1955 | #ifndef telldir |
a687059c |
1956 | long telldir(); |
bf38876a |
1957 | #endif |
a687059c |
1958 | struct DIRENT *readdir(); |
1959 | register struct DIRENT *dp; |
1960 | |
1961 | if (!stab) |
1962 | goto nope; |
1963 | if (!(stio = stab_io(stab))) |
1964 | stio = stab_io(stab) = stio_new(); |
1965 | if (!stio->dirp && optype != O_OPENDIR) |
1966 | goto nope; |
1967 | st[sp] = &str_yes; |
1968 | switch (optype) { |
1969 | case O_OPENDIR: |
1970 | if (stio->dirp) |
1971 | closedir(stio->dirp); |
1972 | if (!(stio->dirp = opendir(str_get(st[sp+1])))) |
1973 | goto nope; |
1974 | break; |
1975 | case O_READDIR: |
1976 | if (gimme == G_ARRAY) { |
1977 | --sp; |
1978 | while (dp = readdir(stio->dirp)) { |
1979 | #ifdef DIRNAMLEN |
1980 | (void)astore(ary,++sp, |
1981 | str_2static(str_make(dp->d_name,dp->d_namlen))); |
1982 | #else |
1983 | (void)astore(ary,++sp, |
1984 | str_2static(str_make(dp->d_name,0))); |
1985 | #endif |
1986 | } |
1987 | } |
1988 | else { |
1989 | if (!(dp = readdir(stio->dirp))) |
1990 | goto nope; |
1991 | st[sp] = str_static(&str_undef); |
1992 | #ifdef DIRNAMLEN |
1993 | str_nset(st[sp], dp->d_name, dp->d_namlen); |
1994 | #else |
1995 | str_set(st[sp], dp->d_name); |
1996 | #endif |
1997 | } |
1998 | break; |
ff8e2863 |
1999 | #if MACH |
2000 | case O_TELLDIR: |
2001 | case O_SEEKDIR: |
2002 | goto nope; |
2003 | #else |
a687059c |
2004 | case O_TELLDIR: |
2005 | st[sp] = str_static(&str_undef); |
2006 | str_numset(st[sp], (double)telldir(stio->dirp)); |
2007 | break; |
2008 | case O_SEEKDIR: |
2009 | st[sp] = str_static(&str_undef); |
2010 | along = (long)str_gnum(st[sp+1]); |
2011 | (void)seekdir(stio->dirp,along); |
2012 | break; |
ff8e2863 |
2013 | #endif |
a687059c |
2014 | case O_REWINDDIR: |
2015 | st[sp] = str_static(&str_undef); |
2016 | (void)rewinddir(stio->dirp); |
2017 | break; |
2018 | case O_CLOSEDIR: |
2019 | st[sp] = str_static(&str_undef); |
2020 | (void)closedir(stio->dirp); |
2021 | stio->dirp = 0; |
2022 | break; |
2023 | } |
2024 | return sp; |
2025 | |
2026 | nope: |
2027 | st[sp] = &str_undef; |
2028 | return sp; |
2029 | |
2030 | #else |
2031 | fatal("Unimplemented directory operation"); |
2032 | #endif |
2033 | } |
2034 | |
2035 | apply(type,arglast) |
2036 | int type; |
2037 | int *arglast; |
2038 | { |
2039 | register STR **st = stack->ary_array; |
2040 | register int sp = arglast[1]; |
2041 | register int items = arglast[2] - sp; |
2042 | register int val; |
2043 | register int val2; |
2044 | register int tot = 0; |
2045 | char *s; |
2046 | |
2047 | #ifdef TAINT |
2048 | for (st += ++sp; items--; st++) |
2049 | tainted |= (*st)->str_tainted; |
2050 | st = stack->ary_array; |
2051 | sp = arglast[1]; |
2052 | items = arglast[2] - sp; |
2053 | #endif |
2054 | switch (type) { |
2055 | case O_CHMOD: |
2056 | #ifdef TAINT |
2057 | taintproper("Insecure dependency in chmod"); |
2058 | #endif |
2059 | if (--items > 0) { |
2060 | tot = items; |
2061 | val = (int)str_gnum(st[++sp]); |
2062 | while (items--) { |
2063 | if (chmod(str_get(st[++sp]),val)) |
2064 | tot--; |
2065 | } |
2066 | } |
2067 | break; |
b1248f16 |
2068 | #ifdef CHOWN |
a687059c |
2069 | case O_CHOWN: |
2070 | #ifdef TAINT |
2071 | taintproper("Insecure dependency in chown"); |
2072 | #endif |
2073 | if (items > 2) { |
2074 | items -= 2; |
2075 | tot = items; |
2076 | val = (int)str_gnum(st[++sp]); |
2077 | val2 = (int)str_gnum(st[++sp]); |
2078 | while (items--) { |
2079 | if (chown(str_get(st[++sp]),val,val2)) |
2080 | tot--; |
2081 | } |
2082 | } |
2083 | break; |
b1248f16 |
2084 | #endif |
2085 | #ifdef KILL |
a687059c |
2086 | case O_KILL: |
2087 | #ifdef TAINT |
2088 | taintproper("Insecure dependency in kill"); |
2089 | #endif |
2090 | if (--items > 0) { |
2091 | tot = items; |
2092 | s = str_get(st[++sp]); |
2093 | if (isupper(*s)) { |
2094 | if (*s == 'S' && s[1] == 'I' && s[2] == 'G') |
2095 | s += 3; |
2096 | if (!(val = whichsig(s))) |
2097 | fatal("Unrecognized signal name \"%s\"",s); |
2098 | } |
2099 | else |
2100 | val = (int)str_gnum(st[sp]); |
2101 | if (val < 0) { |
2102 | val = -val; |
2103 | while (items--) { |
2104 | int proc = (int)str_gnum(st[++sp]); |
2105 | #ifdef KILLPG |
2106 | if (killpg(proc,val)) /* BSD */ |
2107 | #else |
2108 | if (kill(-proc,val)) /* SYSV */ |
2109 | #endif |
2110 | tot--; |
2111 | } |
2112 | } |
2113 | else { |
2114 | while (items--) { |
2115 | if (kill((int)(str_gnum(st[++sp])),val)) |
2116 | tot--; |
2117 | } |
2118 | } |
2119 | } |
2120 | break; |
b1248f16 |
2121 | #endif |
a687059c |
2122 | case O_UNLINK: |
2123 | #ifdef TAINT |
2124 | taintproper("Insecure dependency in unlink"); |
2125 | #endif |
2126 | tot = items; |
2127 | while (items--) { |
2128 | s = str_get(st[++sp]); |
2129 | if (euid || unsafe) { |
2130 | if (UNLINK(s)) |
2131 | tot--; |
2132 | } |
2133 | else { /* don't let root wipe out directories without -U */ |
0d3e774c |
2134 | #ifdef LSTAT |
a687059c |
2135 | if (lstat(s,&statbuf) < 0 || |
2136 | #else |
2137 | if (stat(s,&statbuf) < 0 || |
2138 | #endif |
2139 | (statbuf.st_mode & S_IFMT) == S_IFDIR ) |
2140 | tot--; |
2141 | else { |
2142 | if (UNLINK(s)) |
2143 | tot--; |
2144 | } |
2145 | } |
2146 | } |
2147 | break; |
2148 | case O_UTIME: |
2149 | #ifdef TAINT |
2150 | taintproper("Insecure dependency in utime"); |
2151 | #endif |
2152 | if (items > 2) { |
663a0e37 |
2153 | #ifdef I_UTIME |
2154 | struct utimbuf utbuf; |
2155 | #else |
a687059c |
2156 | struct { |
663a0e37 |
2157 | long actime; |
2158 | long modtime; |
a687059c |
2159 | } utbuf; |
663a0e37 |
2160 | #endif |
a687059c |
2161 | |
afd9f252 |
2162 | Zero(&utbuf, sizeof utbuf, char); |
663a0e37 |
2163 | utbuf.actime = (long)str_gnum(st[++sp]); /* time accessed */ |
2164 | utbuf.modtime = (long)str_gnum(st[++sp]); /* time modified */ |
a687059c |
2165 | items -= 2; |
2166 | #ifndef lint |
2167 | tot = items; |
2168 | while (items--) { |
2169 | if (utime(str_get(st[++sp]),&utbuf)) |
2170 | tot--; |
2171 | } |
2172 | #endif |
2173 | } |
2174 | else |
2175 | items = 0; |
2176 | break; |
2177 | } |
2178 | return tot; |
2179 | } |
2180 | |
2181 | /* Do the permissions allow some operation? Assumes statcache already set. */ |
2182 | |
2183 | int |
2184 | cando(bit, effective, statbufp) |
2185 | int bit; |
2186 | int effective; |
2187 | register struct stat *statbufp; |
2188 | { |
2189 | if ((effective ? euid : uid) == 0) { /* root is special */ |
2190 | if (bit == S_IEXEC) { |
2191 | if (statbufp->st_mode & 0111 || |
2192 | (statbufp->st_mode & S_IFMT) == S_IFDIR ) |
2193 | return TRUE; |
2194 | } |
2195 | else |
2196 | return TRUE; /* root reads and writes anything */ |
2197 | return FALSE; |
2198 | } |
2199 | if (statbufp->st_uid == (effective ? euid : uid) ) { |
2200 | if (statbufp->st_mode & bit) |
2201 | return TRUE; /* ok as "user" */ |
2202 | } |
2203 | else if (ingroup((int)statbufp->st_gid,effective)) { |
2204 | if (statbufp->st_mode & bit >> 3) |
2205 | return TRUE; /* ok as "group" */ |
2206 | } |
2207 | else if (statbufp->st_mode & bit >> 6) |
2208 | return TRUE; /* ok as "other" */ |
2209 | return FALSE; |
2210 | } |
2211 | |
2212 | int |
2213 | ingroup(testgid,effective) |
2214 | int testgid; |
2215 | int effective; |
2216 | { |
2217 | if (testgid == (effective ? egid : gid)) |
2218 | return TRUE; |
2219 | #ifdef GETGROUPS |
2220 | #ifndef NGROUPS |
2221 | #define NGROUPS 32 |
2222 | #endif |
2223 | { |
2224 | GIDTYPE gary[NGROUPS]; |
2225 | int anum; |
2226 | |
2227 | anum = getgroups(NGROUPS,gary); |
2228 | while (--anum >= 0) |
2229 | if (gary[anum] == testgid) |
2230 | return TRUE; |
2231 | } |
2232 | #endif |
2233 | return FALSE; |
2234 | } |