Commit | Line | Data |
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bee1dbe2 | 1 | /* $RCSfile: doio.c,v $$Revision: 4.0.1.5 $$Date: 92/06/08 13:00:21 $ |
a687059c | 2 | * |
6e21c824 | 3 | * Copyright (c) 1991, Larry Wall |
a687059c | 4 | * |
6e21c824 LW |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. | |
a687059c LW |
7 | * |
8 | * $Log: doio.c,v $ | |
bee1dbe2 LW |
9 | * Revision 4.0.1.5 92/06/08 13:00:21 lwall |
10 | * patch20: some machines don't define ENOTSOCK in errno.h | |
11 | * patch20: new warnings for failed use of stat operators on filenames with \n | |
12 | * patch20: wait failed when STDOUT or STDERR reopened to a pipe | |
13 | * patch20: end of file latch not reset on reopen of STDIN | |
14 | * patch20: seek(HANDLE, 0, 1) went to eof because of ancient Ultrix workaround | |
15 | * patch20: fixed memory leak on system() for vfork() machines | |
16 | * patch20: get*by* routines now return something useful in a scalar context | |
17 | * patch20: h_errno now accessible via $? | |
18 | * | |
99b89507 LW |
19 | * Revision 4.0.1.4 91/11/05 16:51:43 lwall |
20 | * patch11: prepared for ctype implementations that don't define isascii() | |
21 | * patch11: perl mistook some streams for sockets because they return mode 0 too | |
22 | * patch11: reopening STDIN, STDOUT and STDERR failed on some machines | |
23 | * patch11: certain perl errors should set EBADF so that $! looks better | |
24 | * patch11: truncate on a closed filehandle could dump | |
25 | * patch11: stats of _ forgot whether prior stat was actually lstat | |
26 | * patch11: -T returned true on NFS directory | |
27 | * | |
1462b684 LW |
28 | * Revision 4.0.1.3 91/06/10 01:21:19 lwall |
29 | * patch10: read didn't work from character special files open for writing | |
30 | * patch10: close-on-exec wrongly set on system file descriptors | |
31 | * | |
6e21c824 LW |
32 | * Revision 4.0.1.2 91/06/07 10:53:39 lwall |
33 | * patch4: new copyright notice | |
34 | * patch4: system fd's are now treated specially | |
35 | * patch4: added $^F variable to specify maximum system fd, default 2 | |
36 | * patch4: character special files now opened with bidirectional stdio buffers | |
37 | * patch4: taintchecks could improperly modify parent in vfork() | |
38 | * patch4: many, many itty-bitty portability fixes | |
39 | * | |
1c3d792e LW |
40 | * Revision 4.0.1.1 91/04/11 17:41:06 lwall |
41 | * patch1: hopefully straightened out some of the Xenix mess | |
42 | * | |
fe14fcc3 LW |
43 | * Revision 4.0 91/03/20 01:07:06 lwall |
44 | * 4.0 baseline. | |
a687059c LW |
45 | * |
46 | */ | |
47 | ||
48 | #include "EXTERN.h" | |
49 | #include "perl.h" | |
50 | ||
fe14fcc3 | 51 | #ifdef HAS_SOCKET |
a687059c LW |
52 | #include <sys/socket.h> |
53 | #include <netdb.h> | |
bee1dbe2 LW |
54 | #ifndef ENOTSOCK |
55 | #include <net/errno.h> | |
56 | #endif | |
a687059c LW |
57 | #endif |
58 | ||
fe14fcc3 | 59 | #ifdef HAS_SELECT |
1c3d792e LW |
60 | #ifdef I_SYS_SELECT |
61 | #ifndef I_SYS_TIME | |
fe14fcc3 LW |
62 | #include <sys/select.h> |
63 | #endif | |
64 | #endif | |
1c3d792e | 65 | #endif |
fe14fcc3 LW |
66 | |
67 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) | |
c2ab57d4 | 68 | #include <sys/ipc.h> |
fe14fcc3 | 69 | #ifdef HAS_MSG |
c2ab57d4 | 70 | #include <sys/msg.h> |
e5d73d77 | 71 | #endif |
fe14fcc3 | 72 | #ifdef HAS_SEM |
c2ab57d4 | 73 | #include <sys/sem.h> |
e5d73d77 | 74 | #endif |
fe14fcc3 | 75 | #ifdef HAS_SHM |
c2ab57d4 LW |
76 | #include <sys/shm.h> |
77 | #endif | |
e5d73d77 | 78 | #endif |
c2ab57d4 | 79 | |
a687059c LW |
80 | #ifdef I_PWD |
81 | #include <pwd.h> | |
82 | #endif | |
83 | #ifdef I_GRP | |
84 | #include <grp.h> | |
85 | #endif | |
663a0e37 LW |
86 | #ifdef I_UTIME |
87 | #include <utime.h> | |
88 | #endif | |
ff8e2863 LW |
89 | #ifdef I_FCNTL |
90 | #include <fcntl.h> | |
91 | #endif | |
fe14fcc3 LW |
92 | #ifdef I_SYS_FILE |
93 | #include <sys/file.h> | |
94 | #endif | |
a687059c | 95 | |
57ebbfd0 | 96 | int laststatval = -1; |
fe14fcc3 | 97 | int laststype = O_STAT; |
57ebbfd0 | 98 | |
bee1dbe2 LW |
99 | static char* warn_nl = "Unsuccessful %s on filename containing newline"; |
100 | ||
a687059c | 101 | bool |
afd9f252 | 102 | do_open(stab,name,len) |
a687059c LW |
103 | STAB *stab; |
104 | register char *name; | |
afd9f252 | 105 | int len; |
a687059c LW |
106 | { |
107 | FILE *fp; | |
a687059c LW |
108 | register STIO *stio = stab_io(stab); |
109 | char *myname = savestr(name); | |
110 | int result; | |
111 | int fd; | |
112 | int writing = 0; | |
113 | char mode[3]; /* stdio file mode ("r\0" or "r+\0") */ | |
6e21c824 LW |
114 | FILE *saveifp = Nullfp; |
115 | FILE *saveofp = Nullfp; | |
116 | char savetype = ' '; | |
a687059c | 117 | |
bee1dbe2 | 118 | mode[0] = mode[1] = mode[2] = '\0'; |
a687059c LW |
119 | name = myname; |
120 | forkprocess = 1; /* assume true if no fork */ | |
99b89507 | 121 | while (len && isSPACE(name[len-1])) |
a687059c LW |
122 | name[--len] = '\0'; |
123 | if (!stio) | |
124 | stio = stab_io(stab) = stio_new(); | |
125 | else if (stio->ifp) { | |
126 | fd = fileno(stio->ifp); | |
6e21c824 | 127 | if (stio->type == '-') |
c2ab57d4 | 128 | result = 0; |
6e21c824 LW |
129 | else if (fd <= maxsysfd) { |
130 | saveifp = stio->ifp; | |
131 | saveofp = stio->ofp; | |
132 | savetype = stio->type; | |
133 | result = 0; | |
134 | } | |
135 | else if (stio->type == '|') | |
136 | result = mypclose(stio->ifp); | |
a687059c | 137 | else if (stio->ifp != stio->ofp) { |
c2ab57d4 LW |
138 | if (stio->ofp) { |
139 | result = fclose(stio->ofp); | |
140 | fclose(stio->ifp); /* clear stdio, fd already closed */ | |
141 | } | |
142 | else | |
143 | result = fclose(stio->ifp); | |
a687059c | 144 | } |
a687059c | 145 | else |
c2ab57d4 | 146 | result = fclose(stio->ifp); |
6e21c824 | 147 | if (result == EOF && fd > maxsysfd) |
a687059c | 148 | fprintf(stderr,"Warning: unable to close filehandle %s properly.\n", |
bee1dbe2 | 149 | stab_ename(stab)); |
a687059c LW |
150 | stio->ofp = stio->ifp = Nullfp; |
151 | } | |
152 | if (*name == '+' && len > 1 && name[len-1] != '|') { /* scary */ | |
153 | mode[1] = *name++; | |
154 | mode[2] = '\0'; | |
155 | --len; | |
156 | writing = 1; | |
157 | } | |
158 | else { | |
159 | mode[1] = '\0'; | |
160 | } | |
161 | stio->type = *name; | |
162 | if (*name == '|') { | |
99b89507 LW |
163 | /*SUPPRESS 530*/ |
164 | for (name++; isSPACE(*name); name++) ; | |
a687059c LW |
165 | #ifdef TAINT |
166 | taintenv(); | |
167 | taintproper("Insecure dependency in piped open"); | |
168 | #endif | |
169 | fp = mypopen(name,"w"); | |
170 | writing = 1; | |
171 | } | |
a687059c LW |
172 | else if (*name == '>') { |
173 | #ifdef TAINT | |
174 | taintproper("Insecure dependency in open"); | |
175 | #endif | |
bf38876a LW |
176 | name++; |
177 | if (*name == '>') { | |
178 | mode[0] = stio->type = 'a'; | |
179 | name++; | |
a687059c | 180 | } |
bf38876a | 181 | else |
a687059c | 182 | mode[0] = 'w'; |
a687059c | 183 | writing = 1; |
bf38876a LW |
184 | if (*name == '&') { |
185 | duplicity: | |
186 | name++; | |
99b89507 | 187 | while (isSPACE(*name)) |
bf38876a | 188 | name++; |
99b89507 | 189 | if (isDIGIT(*name)) |
bf38876a LW |
190 | fd = atoi(name); |
191 | else { | |
192 | stab = stabent(name,FALSE); | |
6e21c824 LW |
193 | if (!stab || !stab_io(stab)) { |
194 | #ifdef EINVAL | |
195 | errno = EINVAL; | |
196 | #endif | |
197 | goto say_false; | |
198 | } | |
bf38876a LW |
199 | if (stab_io(stab) && stab_io(stab)->ifp) { |
200 | fd = fileno(stab_io(stab)->ifp); | |
201 | if (stab_io(stab)->type == 's') | |
202 | stio->type = 's'; | |
203 | } | |
204 | else | |
205 | fd = -1; | |
206 | } | |
fe14fcc3 LW |
207 | if (!(fp = fdopen(fd = dup(fd),mode))) { |
208 | close(fd); | |
209 | } | |
bf38876a LW |
210 | } |
211 | else { | |
99b89507 | 212 | while (isSPACE(*name)) |
bf38876a LW |
213 | name++; |
214 | if (strEQ(name,"-")) { | |
215 | fp = stdout; | |
216 | stio->type = '-'; | |
217 | } | |
218 | else { | |
219 | fp = fopen(name,mode); | |
220 | } | |
221 | } | |
a687059c LW |
222 | } |
223 | else { | |
224 | if (*name == '<') { | |
bf38876a LW |
225 | mode[0] = 'r'; |
226 | name++; | |
99b89507 | 227 | while (isSPACE(*name)) |
bf38876a LW |
228 | name++; |
229 | if (*name == '&') | |
230 | goto duplicity; | |
a687059c LW |
231 | if (strEQ(name,"-")) { |
232 | fp = stdin; | |
233 | stio->type = '-'; | |
234 | } | |
bf38876a | 235 | else |
a687059c | 236 | fp = fopen(name,mode); |
a687059c LW |
237 | } |
238 | else if (name[len-1] == '|') { | |
239 | #ifdef TAINT | |
240 | taintenv(); | |
241 | taintproper("Insecure dependency in piped open"); | |
242 | #endif | |
243 | name[--len] = '\0'; | |
99b89507 | 244 | while (len && isSPACE(name[len-1])) |
a687059c | 245 | name[--len] = '\0'; |
99b89507 LW |
246 | /*SUPPRESS 530*/ |
247 | for (; isSPACE(*name); name++) ; | |
a687059c LW |
248 | fp = mypopen(name,"r"); |
249 | stio->type = '|'; | |
250 | } | |
251 | else { | |
252 | stio->type = '<'; | |
99b89507 LW |
253 | /*SUPPRESS 530*/ |
254 | for (; isSPACE(*name); name++) ; | |
a687059c LW |
255 | if (strEQ(name,"-")) { |
256 | fp = stdin; | |
257 | stio->type = '-'; | |
258 | } | |
259 | else | |
260 | fp = fopen(name,"r"); | |
261 | } | |
262 | } | |
bee1dbe2 LW |
263 | if (!fp) { |
264 | if (dowarn && stio->type == '<' && index(name, '\n')) | |
265 | warn(warn_nl, "open"); | |
266 | Safefree(myname); | |
6e21c824 | 267 | goto say_false; |
bee1dbe2 LW |
268 | } |
269 | Safefree(myname); | |
a687059c LW |
270 | if (stio->type && |
271 | stio->type != '|' && stio->type != '-') { | |
272 | if (fstat(fileno(fp),&statbuf) < 0) { | |
273 | (void)fclose(fp); | |
6e21c824 | 274 | goto say_false; |
a687059c | 275 | } |
1462b684 | 276 | if (S_ISSOCK(statbuf.st_mode)) |
bf38876a | 277 | stio->type = 's'; /* in case a socket was passed in to us */ |
99b89507 LW |
278 | #ifdef HAS_SOCKET |
279 | else if ( | |
c623bd54 | 280 | #ifdef S_IFMT |
99b89507 LW |
281 | !(statbuf.st_mode & S_IFMT) |
282 | #else | |
283 | !statbuf.st_mode | |
284 | #endif | |
285 | ) { | |
bee1dbe2 LW |
286 | int buflen = sizeof tokenbuf; |
287 | if (getsockname(fileno(fp), tokenbuf, &buflen) >= 0 | |
288 | || errno != ENOTSOCK) | |
99b89507 LW |
289 | stio->type = 's'; /* some OS's return 0 on fstat()ed socket */ |
290 | /* but some return 0 for streams too, sigh */ | |
291 | } | |
bf38876a | 292 | #endif |
a687059c | 293 | } |
6e21c824 LW |
294 | if (saveifp) { /* must use old fp? */ |
295 | fd = fileno(saveifp); | |
296 | if (saveofp) { | |
297 | fflush(saveofp); /* emulate fclose() */ | |
298 | if (saveofp != saveifp) { /* was a socket? */ | |
299 | fclose(saveofp); | |
99b89507 LW |
300 | if (fd > 2) |
301 | Safefree(saveofp); | |
6e21c824 LW |
302 | } |
303 | } | |
304 | if (fd != fileno(fp)) { | |
bee1dbe2 LW |
305 | int pid; |
306 | STR *str; | |
307 | ||
6e21c824 | 308 | dup2(fileno(fp), fd); |
bee1dbe2 LW |
309 | str = afetch(fdpid,fileno(fp),TRUE); |
310 | pid = str->str_u.str_useful; | |
311 | str->str_u.str_useful = 0; | |
312 | str = afetch(fdpid,fd,TRUE); | |
313 | str->str_u.str_useful = pid; | |
6e21c824 | 314 | fclose(fp); |
bee1dbe2 | 315 | |
6e21c824 LW |
316 | } |
317 | fp = saveifp; | |
bee1dbe2 | 318 | clearerr(fp); |
6e21c824 | 319 | } |
1462b684 LW |
320 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
321 | fd = fileno(fp); | |
322 | fcntl(fd,F_SETFD,fd > maxsysfd); | |
323 | #endif | |
a687059c | 324 | stio->ifp = fp; |
bf38876a | 325 | if (writing) { |
1462b684 LW |
326 | if (stio->type == 's' |
327 | || (stio->type == '>' && S_ISCHR(statbuf.st_mode)) ) { | |
fe14fcc3 LW |
328 | if (!(stio->ofp = fdopen(fileno(fp),"w"))) { |
329 | fclose(fp); | |
330 | stio->ifp = Nullfp; | |
6e21c824 | 331 | goto say_false; |
fe14fcc3 | 332 | } |
1462b684 LW |
333 | } |
334 | else | |
335 | stio->ofp = fp; | |
bf38876a | 336 | } |
a687059c | 337 | return TRUE; |
6e21c824 LW |
338 | |
339 | say_false: | |
340 | stio->ifp = saveifp; | |
341 | stio->ofp = saveofp; | |
342 | stio->type = savetype; | |
343 | return FALSE; | |
a687059c LW |
344 | } |
345 | ||
346 | FILE * | |
347 | nextargv(stab) | |
348 | register STAB *stab; | |
349 | { | |
350 | register STR *str; | |
99b89507 | 351 | #ifndef FLEXFILENAMES |
c623bd54 LW |
352 | int filedev; |
353 | int fileino; | |
99b89507 | 354 | #endif |
c623bd54 LW |
355 | int fileuid; |
356 | int filegid; | |
fe14fcc3 LW |
357 | static int filemode = 0; |
358 | static int lastfd; | |
359 | static char *oldname; | |
360 | ||
361 | if (!argvoutstab) | |
362 | argvoutstab = stabent("ARGVOUT",TRUE); | |
363 | if (filemode & (S_ISUID|S_ISGID)) { | |
364 | fflush(stab_io(argvoutstab)->ifp); /* chmod must follow last write */ | |
365 | #ifdef HAS_FCHMOD | |
366 | (void)fchmod(lastfd,filemode); | |
367 | #else | |
368 | (void)chmod(oldname,filemode); | |
369 | #endif | |
370 | } | |
371 | filemode = 0; | |
a687059c LW |
372 | while (alen(stab_xarray(stab)) >= 0) { |
373 | str = ashift(stab_xarray(stab)); | |
374 | str_sset(stab_val(stab),str); | |
375 | STABSET(stab_val(stab)); | |
376 | oldname = str_get(stab_val(stab)); | |
afd9f252 | 377 | if (do_open(stab,oldname,stab_val(stab)->str_cur)) { |
a687059c LW |
378 | if (inplace) { |
379 | #ifdef TAINT | |
380 | taintproper("Insecure dependency in inplace open"); | |
381 | #endif | |
c623bd54 LW |
382 | if (strEQ(oldname,"-")) { |
383 | str_free(str); | |
384 | defoutstab = stabent("STDOUT",TRUE); | |
385 | return stab_io(stab)->ifp; | |
386 | } | |
99b89507 | 387 | #ifndef FLEXFILENAMES |
c623bd54 LW |
388 | filedev = statbuf.st_dev; |
389 | fileino = statbuf.st_ino; | |
99b89507 | 390 | #endif |
a687059c LW |
391 | filemode = statbuf.st_mode; |
392 | fileuid = statbuf.st_uid; | |
393 | filegid = statbuf.st_gid; | |
c623bd54 LW |
394 | if (!S_ISREG(filemode)) { |
395 | warn("Can't do inplace edit: %s is not a regular file", | |
396 | oldname ); | |
397 | do_close(stab,FALSE); | |
398 | str_free(str); | |
399 | continue; | |
400 | } | |
a687059c | 401 | if (*inplace) { |
ff8e2863 LW |
402 | #ifdef SUFFIX |
403 | add_suffix(str,inplace); | |
404 | #else | |
a687059c | 405 | str_cat(str,inplace); |
ff8e2863 | 406 | #endif |
c623bd54 LW |
407 | #ifndef FLEXFILENAMES |
408 | if (stat(str->str_ptr,&statbuf) >= 0 | |
409 | && statbuf.st_dev == filedev | |
410 | && statbuf.st_ino == fileino ) { | |
411 | warn("Can't do inplace edit: %s > 14 characters", | |
412 | str->str_ptr ); | |
413 | do_close(stab,FALSE); | |
414 | str_free(str); | |
415 | continue; | |
416 | } | |
417 | #endif | |
fe14fcc3 | 418 | #ifdef HAS_RENAME |
bee1dbe2 | 419 | #ifndef DOSISH |
c623bd54 LW |
420 | if (rename(oldname,str->str_ptr) < 0) { |
421 | warn("Can't rename %s to %s: %s, skipping file", | |
422 | oldname, str->str_ptr, strerror(errno) ); | |
423 | do_close(stab,FALSE); | |
424 | str_free(str); | |
425 | continue; | |
426 | } | |
a687059c | 427 | #else |
ff8e2863 LW |
428 | do_close(stab,FALSE); |
429 | (void)unlink(str->str_ptr); | |
430 | (void)rename(oldname,str->str_ptr); | |
431 | do_open(stab,str->str_ptr,stab_val(stab)->str_cur); | |
432 | #endif /* MSDOS */ | |
433 | #else | |
a687059c | 434 | (void)UNLINK(str->str_ptr); |
c623bd54 LW |
435 | if (link(oldname,str->str_ptr) < 0) { |
436 | warn("Can't rename %s to %s: %s, skipping file", | |
437 | oldname, str->str_ptr, strerror(errno) ); | |
438 | do_close(stab,FALSE); | |
439 | str_free(str); | |
440 | continue; | |
441 | } | |
a687059c LW |
442 | (void)UNLINK(oldname); |
443 | #endif | |
444 | } | |
445 | else { | |
bee1dbe2 | 446 | #ifndef DOSISH |
fe14fcc3 LW |
447 | if (UNLINK(oldname) < 0) { |
448 | warn("Can't rename %s to %s: %s, skipping file", | |
449 | oldname, str->str_ptr, strerror(errno) ); | |
450 | do_close(stab,FALSE); | |
451 | str_free(str); | |
452 | continue; | |
453 | } | |
ff8e2863 LW |
454 | #else |
455 | fatal("Can't do inplace edit without backup"); | |
456 | #endif | |
a687059c LW |
457 | } |
458 | ||
459 | str_nset(str,">",1); | |
460 | str_cat(str,oldname); | |
461 | errno = 0; /* in case sprintf set errno */ | |
fe14fcc3 | 462 | if (!do_open(argvoutstab,str->str_ptr,str->str_cur)) { |
c623bd54 LW |
463 | warn("Can't do inplace edit on %s: %s", |
464 | oldname, strerror(errno) ); | |
fe14fcc3 LW |
465 | do_close(stab,FALSE); |
466 | str_free(str); | |
467 | continue; | |
468 | } | |
a687059c | 469 | defoutstab = argvoutstab; |
fe14fcc3 LW |
470 | lastfd = fileno(stab_io(argvoutstab)->ifp); |
471 | (void)fstat(lastfd,&statbuf); | |
472 | #ifdef HAS_FCHMOD | |
473 | (void)fchmod(lastfd,filemode); | |
a687059c LW |
474 | #else |
475 | (void)chmod(oldname,filemode); | |
476 | #endif | |
fe14fcc3 LW |
477 | if (fileuid != statbuf.st_uid || filegid != statbuf.st_gid) { |
478 | #ifdef HAS_FCHOWN | |
479 | (void)fchown(lastfd,fileuid,filegid); | |
a687059c | 480 | #else |
fe14fcc3 LW |
481 | #ifdef HAS_CHOWN |
482 | (void)chown(oldname,fileuid,filegid); | |
a687059c | 483 | #endif |
b1248f16 | 484 | #endif |
fe14fcc3 | 485 | } |
a687059c LW |
486 | } |
487 | str_free(str); | |
488 | return stab_io(stab)->ifp; | |
489 | } | |
490 | else | |
c623bd54 | 491 | fprintf(stderr,"Can't open %s: %s\n",str_get(str), strerror(errno)); |
a687059c LW |
492 | str_free(str); |
493 | } | |
494 | if (inplace) { | |
495 | (void)do_close(argvoutstab,FALSE); | |
496 | defoutstab = stabent("STDOUT",TRUE); | |
497 | } | |
498 | return Nullfp; | |
499 | } | |
500 | ||
fe14fcc3 | 501 | #ifdef HAS_PIPE |
afd9f252 LW |
502 | void |
503 | do_pipe(str, rstab, wstab) | |
504 | STR *str; | |
505 | STAB *rstab; | |
506 | STAB *wstab; | |
507 | { | |
508 | register STIO *rstio; | |
509 | register STIO *wstio; | |
510 | int fd[2]; | |
511 | ||
512 | if (!rstab) | |
513 | goto badexit; | |
514 | if (!wstab) | |
515 | goto badexit; | |
516 | ||
517 | rstio = stab_io(rstab); | |
518 | wstio = stab_io(wstab); | |
519 | ||
520 | if (!rstio) | |
521 | rstio = stab_io(rstab) = stio_new(); | |
522 | else if (rstio->ifp) | |
523 | do_close(rstab,FALSE); | |
524 | if (!wstio) | |
525 | wstio = stab_io(wstab) = stio_new(); | |
526 | else if (wstio->ifp) | |
527 | do_close(wstab,FALSE); | |
528 | ||
529 | if (pipe(fd) < 0) | |
530 | goto badexit; | |
531 | rstio->ifp = fdopen(fd[0], "r"); | |
532 | wstio->ofp = fdopen(fd[1], "w"); | |
533 | wstio->ifp = wstio->ofp; | |
534 | rstio->type = '<'; | |
535 | wstio->type = '>'; | |
fe14fcc3 LW |
536 | if (!rstio->ifp || !wstio->ofp) { |
537 | if (rstio->ifp) fclose(rstio->ifp); | |
538 | else close(fd[0]); | |
539 | if (wstio->ofp) fclose(wstio->ofp); | |
540 | else close(fd[1]); | |
541 | goto badexit; | |
542 | } | |
afd9f252 LW |
543 | |
544 | str_sset(str,&str_yes); | |
545 | return; | |
546 | ||
547 | badexit: | |
548 | str_sset(str,&str_undef); | |
549 | return; | |
550 | } | |
b1248f16 | 551 | #endif |
afd9f252 | 552 | |
a687059c LW |
553 | bool |
554 | do_close(stab,explicit) | |
555 | STAB *stab; | |
556 | bool explicit; | |
557 | { | |
558 | bool retval = FALSE; | |
c2ab57d4 | 559 | register STIO *stio; |
a687059c LW |
560 | int status; |
561 | ||
c2ab57d4 LW |
562 | if (!stab) |
563 | stab = argvstab; | |
99b89507 LW |
564 | if (!stab) { |
565 | errno = EBADF; | |
c2ab57d4 | 566 | return FALSE; |
99b89507 | 567 | } |
c2ab57d4 | 568 | stio = stab_io(stab); |
a687059c LW |
569 | if (!stio) { /* never opened */ |
570 | if (dowarn && explicit) | |
bee1dbe2 | 571 | warn("Close on unopened file <%s>",stab_ename(stab)); |
a687059c LW |
572 | return FALSE; |
573 | } | |
574 | if (stio->ifp) { | |
575 | if (stio->type == '|') { | |
576 | status = mypclose(stio->ifp); | |
c623bd54 | 577 | retval = (status == 0); |
b1248f16 | 578 | statusvalue = (unsigned short)status & 0xffff; |
a687059c LW |
579 | } |
580 | else if (stio->type == '-') | |
581 | retval = TRUE; | |
582 | else { | |
c2ab57d4 LW |
583 | if (stio->ofp && stio->ofp != stio->ifp) { /* a socket */ |
584 | retval = (fclose(stio->ofp) != EOF); | |
585 | fclose(stio->ifp); /* clear stdio, fd already closed */ | |
586 | } | |
587 | else | |
588 | retval = (fclose(stio->ifp) != EOF); | |
a687059c LW |
589 | } |
590 | stio->ofp = stio->ifp = Nullfp; | |
591 | } | |
592 | if (explicit) | |
593 | stio->lines = 0; | |
594 | stio->type = ' '; | |
595 | return retval; | |
596 | } | |
597 | ||
598 | bool | |
599 | do_eof(stab) | |
600 | STAB *stab; | |
601 | { | |
602 | register STIO *stio; | |
603 | int ch; | |
604 | ||
605 | if (!stab) { /* eof() */ | |
606 | if (argvstab) | |
607 | stio = stab_io(argvstab); | |
608 | else | |
609 | return TRUE; | |
610 | } | |
611 | else | |
612 | stio = stab_io(stab); | |
613 | ||
614 | if (!stio) | |
615 | return TRUE; | |
616 | ||
617 | while (stio->ifp) { | |
618 | ||
619 | #ifdef STDSTDIO /* (the code works without this) */ | |
620 | if (stio->ifp->_cnt > 0) /* cheat a little, since */ | |
621 | return FALSE; /* this is the most usual case */ | |
622 | #endif | |
623 | ||
624 | ch = getc(stio->ifp); | |
625 | if (ch != EOF) { | |
626 | (void)ungetc(ch, stio->ifp); | |
627 | return FALSE; | |
628 | } | |
fe14fcc3 LW |
629 | #ifdef STDSTDIO |
630 | if (stio->ifp->_cnt < -1) | |
631 | stio->ifp->_cnt = -1; | |
632 | #endif | |
a687059c LW |
633 | if (!stab) { /* not necessarily a real EOF yet? */ |
634 | if (!nextargv(argvstab)) /* get another fp handy */ | |
635 | return TRUE; | |
636 | } | |
637 | else | |
638 | return TRUE; /* normal fp, definitely end of file */ | |
639 | } | |
640 | return TRUE; | |
641 | } | |
642 | ||
643 | long | |
644 | do_tell(stab) | |
645 | STAB *stab; | |
646 | { | |
647 | register STIO *stio; | |
648 | ||
649 | if (!stab) | |
650 | goto phooey; | |
651 | ||
652 | stio = stab_io(stab); | |
653 | if (!stio || !stio->ifp) | |
654 | goto phooey; | |
655 | ||
bee1dbe2 | 656 | #ifdef ULTRIX_STDIO_BOTCH |
a687059c LW |
657 | if (feof(stio->ifp)) |
658 | (void)fseek (stio->ifp, 0L, 2); /* ultrix 1.2 workaround */ | |
bee1dbe2 | 659 | #endif |
a687059c LW |
660 | |
661 | return ftell(stio->ifp); | |
662 | ||
663 | phooey: | |
664 | if (dowarn) | |
665 | warn("tell() on unopened file"); | |
99b89507 | 666 | errno = EBADF; |
a687059c LW |
667 | return -1L; |
668 | } | |
669 | ||
670 | bool | |
671 | do_seek(stab, pos, whence) | |
672 | STAB *stab; | |
673 | long pos; | |
674 | int whence; | |
675 | { | |
676 | register STIO *stio; | |
677 | ||
678 | if (!stab) | |
679 | goto nuts; | |
680 | ||
681 | stio = stab_io(stab); | |
682 | if (!stio || !stio->ifp) | |
683 | goto nuts; | |
684 | ||
bee1dbe2 | 685 | #ifdef ULTRIX_STDIO_BOTCH |
a687059c LW |
686 | if (feof(stio->ifp)) |
687 | (void)fseek (stio->ifp, 0L, 2); /* ultrix 1.2 workaround */ | |
bee1dbe2 | 688 | #endif |
a687059c LW |
689 | |
690 | return fseek(stio->ifp, pos, whence) >= 0; | |
691 | ||
692 | nuts: | |
693 | if (dowarn) | |
694 | warn("seek() on unopened file"); | |
99b89507 | 695 | errno = EBADF; |
a687059c LW |
696 | return FALSE; |
697 | } | |
698 | ||
699 | int | |
700 | do_ctl(optype,stab,func,argstr) | |
701 | int optype; | |
702 | STAB *stab; | |
703 | int func; | |
704 | STR *argstr; | |
705 | { | |
706 | register STIO *stio; | |
707 | register char *s; | |
708 | int retval; | |
709 | ||
99b89507 LW |
710 | if (!stab || !argstr || !(stio = stab_io(stab)) || !stio->ifp) { |
711 | errno = EBADF; /* well, sort of... */ | |
a687059c | 712 | return -1; |
99b89507 | 713 | } |
a687059c LW |
714 | |
715 | if (argstr->str_pok || !argstr->str_nok) { | |
716 | if (!argstr->str_pok) | |
717 | s = str_get(argstr); | |
718 | ||
719 | #ifdef IOCPARM_MASK | |
720 | #ifndef IOCPARM_LEN | |
721 | #define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK) | |
722 | #endif | |
723 | #endif | |
724 | #ifdef IOCPARM_LEN | |
725 | retval = IOCPARM_LEN(func); /* on BSDish systes we're safe */ | |
726 | #else | |
727 | retval = 256; /* otherwise guess at what's safe */ | |
728 | #endif | |
729 | if (argstr->str_cur < retval) { | |
ff8e2863 | 730 | Str_Grow(argstr,retval+1); |
a687059c LW |
731 | argstr->str_cur = retval; |
732 | } | |
733 | ||
734 | s = argstr->str_ptr; | |
735 | s[argstr->str_cur] = 17; /* a little sanity check here */ | |
736 | } | |
737 | else { | |
738 | retval = (int)str_gnum(argstr); | |
bee1dbe2 | 739 | #ifdef DOSISH |
c2ab57d4 LW |
740 | s = (char*)(long)retval; /* ouch */ |
741 | #else | |
a687059c | 742 | s = (char*)retval; /* ouch */ |
c2ab57d4 | 743 | #endif |
a687059c LW |
744 | } |
745 | ||
746 | #ifndef lint | |
747 | if (optype == O_IOCTL) | |
748 | retval = ioctl(fileno(stio->ifp), func, s); | |
749 | else | |
bee1dbe2 | 750 | #ifdef DOSISH |
57ebbfd0 LW |
751 | fatal("fcntl is not implemented"); |
752 | #else | |
fe14fcc3 | 753 | #ifdef HAS_FCNTL |
a687059c LW |
754 | retval = fcntl(fileno(stio->ifp), func, s); |
755 | #else | |
756 | fatal("fcntl is not implemented"); | |
757 | #endif | |
57ebbfd0 | 758 | #endif |
a687059c LW |
759 | #else /* lint */ |
760 | retval = 0; | |
761 | #endif /* lint */ | |
762 | ||
763 | if (argstr->str_pok) { | |
764 | if (s[argstr->str_cur] != 17) | |
765 | fatal("Return value overflowed string"); | |
766 | s[argstr->str_cur] = 0; /* put our null back */ | |
767 | } | |
768 | return retval; | |
769 | } | |
770 | ||
771 | int | |
772 | do_stat(str,arg,gimme,arglast) | |
773 | STR *str; | |
774 | register ARG *arg; | |
775 | int gimme; | |
776 | int *arglast; | |
777 | { | |
778 | register ARRAY *ary = stack; | |
779 | register int sp = arglast[0] + 1; | |
780 | int max = 13; | |
a687059c LW |
781 | |
782 | if ((arg[1].arg_type & A_MASK) == A_WORD) { | |
783 | tmpstab = arg[1].arg_ptr.arg_stab; | |
784 | if (tmpstab != defstab) { | |
fe14fcc3 | 785 | laststype = O_STAT; |
a687059c LW |
786 | statstab = tmpstab; |
787 | str_set(statname,""); | |
c2ab57d4 | 788 | if (!stab_io(tmpstab) || !stab_io(tmpstab)->ifp || |
a687059c LW |
789 | fstat(fileno(stab_io(tmpstab)->ifp),&statcache) < 0) { |
790 | max = 0; | |
57ebbfd0 | 791 | laststatval = -1; |
a687059c LW |
792 | } |
793 | } | |
57ebbfd0 LW |
794 | else if (laststatval < 0) |
795 | max = 0; | |
a687059c LW |
796 | } |
797 | else { | |
c623bd54 | 798 | str_set(statname,str_get(ary->ary_array[sp])); |
a687059c | 799 | statstab = Nullstab; |
fe14fcc3 LW |
800 | #ifdef HAS_LSTAT |
801 | laststype = arg->arg_type; | |
a687059c | 802 | if (arg->arg_type == O_LSTAT) |
57ebbfd0 | 803 | laststatval = lstat(str_get(statname),&statcache); |
a687059c LW |
804 | else |
805 | #endif | |
57ebbfd0 | 806 | laststatval = stat(str_get(statname),&statcache); |
bee1dbe2 LW |
807 | if (laststatval < 0) { |
808 | if (dowarn && index(str_get(statname), '\n')) | |
809 | warn(warn_nl, "stat"); | |
a687059c | 810 | max = 0; |
bee1dbe2 | 811 | } |
a687059c LW |
812 | } |
813 | ||
814 | if (gimme != G_ARRAY) { | |
815 | if (max) | |
816 | str_sset(str,&str_yes); | |
817 | else | |
818 | str_sset(str,&str_undef); | |
819 | STABSET(str); | |
820 | ary->ary_array[sp] = str; | |
821 | return sp; | |
822 | } | |
823 | sp--; | |
824 | if (max) { | |
825 | #ifndef lint | |
826 | (void)astore(ary,++sp, | |
fe14fcc3 | 827 | str_2mortal(str_nmake((double)statcache.st_dev))); |
a687059c | 828 | (void)astore(ary,++sp, |
fe14fcc3 | 829 | str_2mortal(str_nmake((double)statcache.st_ino))); |
a687059c | 830 | (void)astore(ary,++sp, |
fe14fcc3 | 831 | str_2mortal(str_nmake((double)statcache.st_mode))); |
a687059c | 832 | (void)astore(ary,++sp, |
fe14fcc3 | 833 | str_2mortal(str_nmake((double)statcache.st_nlink))); |
a687059c | 834 | (void)astore(ary,++sp, |
fe14fcc3 | 835 | str_2mortal(str_nmake((double)statcache.st_uid))); |
a687059c | 836 | (void)astore(ary,++sp, |
fe14fcc3 | 837 | str_2mortal(str_nmake((double)statcache.st_gid))); |
a687059c | 838 | (void)astore(ary,++sp, |
fe14fcc3 | 839 | str_2mortal(str_nmake((double)statcache.st_rdev))); |
a687059c | 840 | (void)astore(ary,++sp, |
fe14fcc3 | 841 | str_2mortal(str_nmake((double)statcache.st_size))); |
a687059c | 842 | (void)astore(ary,++sp, |
fe14fcc3 | 843 | str_2mortal(str_nmake((double)statcache.st_atime))); |
a687059c | 844 | (void)astore(ary,++sp, |
fe14fcc3 | 845 | str_2mortal(str_nmake((double)statcache.st_mtime))); |
a687059c | 846 | (void)astore(ary,++sp, |
fe14fcc3 | 847 | str_2mortal(str_nmake((double)statcache.st_ctime))); |
a687059c LW |
848 | #ifdef STATBLOCKS |
849 | (void)astore(ary,++sp, | |
fe14fcc3 | 850 | str_2mortal(str_nmake((double)statcache.st_blksize))); |
a687059c | 851 | (void)astore(ary,++sp, |
fe14fcc3 | 852 | str_2mortal(str_nmake((double)statcache.st_blocks))); |
a687059c LW |
853 | #else |
854 | (void)astore(ary,++sp, | |
fe14fcc3 | 855 | str_2mortal(str_make("",0))); |
a687059c | 856 | (void)astore(ary,++sp, |
fe14fcc3 | 857 | str_2mortal(str_make("",0))); |
a687059c LW |
858 | #endif |
859 | #else /* lint */ | |
860 | (void)astore(ary,++sp,str_nmake(0.0)); | |
861 | #endif /* lint */ | |
862 | } | |
863 | return sp; | |
864 | } | |
865 | ||
fe14fcc3 | 866 | #if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) && defined(F_FREESP) |
c2ab57d4 | 867 | /* code courtesy of William Kucharski */ |
fe14fcc3 | 868 | #define HAS_CHSIZE |
6eb13c3b LW |
869 | |
870 | int chsize(fd, length) | |
871 | int fd; /* file descriptor */ | |
872 | off_t length; /* length to set file to */ | |
873 | { | |
874 | extern long lseek(); | |
875 | struct flock fl; | |
876 | struct stat filebuf; | |
877 | ||
878 | if (fstat(fd, &filebuf) < 0) | |
879 | return -1; | |
880 | ||
881 | if (filebuf.st_size < length) { | |
882 | ||
883 | /* extend file length */ | |
884 | ||
885 | if ((lseek(fd, (length - 1), 0)) < 0) | |
886 | return -1; | |
887 | ||
888 | /* write a "0" byte */ | |
889 | ||
890 | if ((write(fd, "", 1)) != 1) | |
891 | return -1; | |
892 | } | |
893 | else { | |
894 | /* truncate length */ | |
895 | ||
896 | fl.l_whence = 0; | |
897 | fl.l_len = 0; | |
898 | fl.l_start = length; | |
899 | fl.l_type = F_WRLCK; /* write lock on file space */ | |
900 | ||
901 | /* | |
902 | * This relies on the UNDOCUMENTED F_FREESP argument to | |
903 | * fcntl(2), which truncates the file so that it ends at the | |
904 | * position indicated by fl.l_start. | |
905 | * | |
906 | * Will minor miracles never cease? | |
907 | */ | |
908 | ||
909 | if (fcntl(fd, F_FREESP, &fl) < 0) | |
910 | return -1; | |
911 | ||
912 | } | |
913 | ||
914 | return 0; | |
915 | } | |
916 | #endif /* F_FREESP */ | |
917 | ||
99b89507 | 918 | int /*SUPPRESS 590*/ |
ff8e2863 LW |
919 | do_truncate(str,arg,gimme,arglast) |
920 | STR *str; | |
921 | register ARG *arg; | |
922 | int gimme; | |
923 | int *arglast; | |
924 | { | |
925 | register ARRAY *ary = stack; | |
926 | register int sp = arglast[0] + 1; | |
927 | off_t len = (off_t)str_gnum(ary->ary_array[sp+1]); | |
928 | int result = 1; | |
929 | STAB *tmpstab; | |
930 | ||
fe14fcc3 LW |
931 | #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) |
932 | #ifdef HAS_TRUNCATE | |
ff8e2863 LW |
933 | if ((arg[1].arg_type & A_MASK) == A_WORD) { |
934 | tmpstab = arg[1].arg_ptr.arg_stab; | |
99b89507 | 935 | if (!stab_io(tmpstab) || !stab_io(tmpstab)->ifp || |
ff8e2863 LW |
936 | ftruncate(fileno(stab_io(tmpstab)->ifp), len) < 0) |
937 | result = 0; | |
938 | } | |
939 | else if (truncate(str_get(ary->ary_array[sp]), len) < 0) | |
940 | result = 0; | |
941 | #else | |
ff8e2863 LW |
942 | if ((arg[1].arg_type & A_MASK) == A_WORD) { |
943 | tmpstab = arg[1].arg_ptr.arg_stab; | |
99b89507 | 944 | if (!stab_io(tmpstab) || !stab_io(tmpstab)->ifp || |
ff8e2863 LW |
945 | chsize(fileno(stab_io(tmpstab)->ifp), len) < 0) |
946 | result = 0; | |
947 | } | |
948 | else { | |
949 | int tmpfd; | |
950 | ||
951 | if ((tmpfd = open(str_get(ary->ary_array[sp]), 0)) < 0) | |
952 | result = 0; | |
953 | else { | |
954 | if (chsize(tmpfd, len) < 0) | |
955 | result = 0; | |
956 | close(tmpfd); | |
957 | } | |
958 | } | |
959 | #endif | |
960 | ||
961 | if (result) | |
962 | str_sset(str,&str_yes); | |
963 | else | |
964 | str_sset(str,&str_undef); | |
965 | STABSET(str); | |
966 | ary->ary_array[sp] = str; | |
967 | return sp; | |
968 | #else | |
969 | fatal("truncate not implemented"); | |
970 | #endif | |
971 | } | |
972 | ||
973 | int | |
a687059c LW |
974 | looks_like_number(str) |
975 | STR *str; | |
976 | { | |
977 | register char *s; | |
978 | register char *send; | |
979 | ||
980 | if (!str->str_pok) | |
981 | return TRUE; | |
982 | s = str->str_ptr; | |
983 | send = s + str->str_cur; | |
99b89507 | 984 | while (isSPACE(*s)) |
a687059c LW |
985 | s++; |
986 | if (s >= send) | |
987 | return FALSE; | |
988 | if (*s == '+' || *s == '-') | |
989 | s++; | |
99b89507 | 990 | while (isDIGIT(*s)) |
a687059c LW |
991 | s++; |
992 | if (s == send) | |
993 | return TRUE; | |
994 | if (*s == '.') | |
995 | s++; | |
996 | else if (s == str->str_ptr) | |
997 | return FALSE; | |
99b89507 | 998 | while (isDIGIT(*s)) |
a687059c LW |
999 | s++; |
1000 | if (s == send) | |
1001 | return TRUE; | |
1002 | if (*s == 'e' || *s == 'E') { | |
1003 | s++; | |
1004 | if (*s == '+' || *s == '-') | |
1005 | s++; | |
99b89507 | 1006 | while (isDIGIT(*s)) |
a687059c LW |
1007 | s++; |
1008 | } | |
99b89507 | 1009 | while (isSPACE(*s)) |
a687059c LW |
1010 | s++; |
1011 | if (s >= send) | |
1012 | return TRUE; | |
1013 | return FALSE; | |
1014 | } | |
1015 | ||
1016 | bool | |
1017 | do_print(str,fp) | |
1018 | register STR *str; | |
1019 | FILE *fp; | |
1020 | { | |
1021 | register char *tmps; | |
1022 | ||
1023 | if (!fp) { | |
1024 | if (dowarn) | |
1025 | warn("print to unopened file"); | |
99b89507 | 1026 | errno = EBADF; |
a687059c LW |
1027 | return FALSE; |
1028 | } | |
1029 | if (!str) | |
ff8e2863 | 1030 | return TRUE; |
a687059c LW |
1031 | if (ofmt && |
1032 | ((str->str_nok && str->str_u.str_nval != 0.0) | |
ff8e2863 | 1033 | || (looks_like_number(str) && str_gnum(str) != 0.0) ) ) { |
a687059c | 1034 | fprintf(fp, ofmt, str->str_u.str_nval); |
ff8e2863 LW |
1035 | return !ferror(fp); |
1036 | } | |
a687059c LW |
1037 | else { |
1038 | tmps = str_get(str); | |
c2ab57d4 | 1039 | if (*tmps == 'S' && tmps[1] == 't' && tmps[2] == 'B' && tmps[3] == '\0' |
a687059c | 1040 | && str->str_cur == sizeof(STBP) && strlen(tmps) < str->str_cur) { |
fe14fcc3 | 1041 | STR *tmpstr = str_mortal(&str_undef); |
bee1dbe2 | 1042 | stab_efullname(tmpstr,((STAB*)str));/* a stab value, be nice */ |
c2ab57d4 LW |
1043 | str = tmpstr; |
1044 | tmps = str->str_ptr; | |
a687059c LW |
1045 | putc('*',fp); |
1046 | } | |
ff8e2863 | 1047 | if (str->str_cur && (fwrite(tmps,1,str->str_cur,fp) == 0 || ferror(fp))) |
a687059c LW |
1048 | return FALSE; |
1049 | } | |
1050 | return TRUE; | |
1051 | } | |
1052 | ||
1053 | bool | |
1054 | do_aprint(arg,fp,arglast) | |
1055 | register ARG *arg; | |
1056 | register FILE *fp; | |
1057 | int *arglast; | |
1058 | { | |
1059 | register STR **st = stack->ary_array; | |
1060 | register int sp = arglast[1]; | |
1061 | register int retval; | |
1062 | register int items = arglast[2] - sp; | |
1063 | ||
1064 | if (!fp) { | |
1065 | if (dowarn) | |
1066 | warn("print to unopened file"); | |
99b89507 | 1067 | errno = EBADF; |
a687059c LW |
1068 | return FALSE; |
1069 | } | |
1070 | st += ++sp; | |
1071 | if (arg->arg_type == O_PRTF) { | |
1072 | do_sprintf(arg->arg_ptr.arg_str,items,st); | |
1073 | retval = do_print(arg->arg_ptr.arg_str,fp); | |
1074 | } | |
1075 | else { | |
1076 | retval = (items <= 0); | |
1077 | for (; items > 0; items--,st++) { | |
1078 | if (retval && ofslen) { | |
ff8e2863 | 1079 | if (fwrite(ofs, 1, ofslen, fp) == 0 || ferror(fp)) { |
a687059c LW |
1080 | retval = FALSE; |
1081 | break; | |
1082 | } | |
1083 | } | |
1084 | if (!(retval = do_print(*st, fp))) | |
1085 | break; | |
1086 | } | |
1087 | if (retval && orslen) | |
ff8e2863 | 1088 | if (fwrite(ors, 1, orslen, fp) == 0 || ferror(fp)) |
a687059c LW |
1089 | retval = FALSE; |
1090 | } | |
1091 | return retval; | |
1092 | } | |
1093 | ||
1094 | int | |
1095 | mystat(arg,str) | |
1096 | ARG *arg; | |
1097 | STR *str; | |
1098 | { | |
1099 | STIO *stio; | |
1100 | ||
1101 | if (arg[1].arg_type & A_DONT) { | |
1102 | stio = stab_io(arg[1].arg_ptr.arg_stab); | |
1103 | if (stio && stio->ifp) { | |
1104 | statstab = arg[1].arg_ptr.arg_stab; | |
1105 | str_set(statname,""); | |
99b89507 | 1106 | laststype = O_STAT; |
57ebbfd0 | 1107 | return (laststatval = fstat(fileno(stio->ifp), &statcache)); |
a687059c LW |
1108 | } |
1109 | else { | |
1110 | if (arg[1].arg_ptr.arg_stab == defstab) | |
57ebbfd0 | 1111 | return laststatval; |
a687059c LW |
1112 | if (dowarn) |
1113 | warn("Stat on unopened file <%s>", | |
bee1dbe2 | 1114 | stab_ename(arg[1].arg_ptr.arg_stab)); |
a687059c LW |
1115 | statstab = Nullstab; |
1116 | str_set(statname,""); | |
57ebbfd0 | 1117 | return (laststatval = -1); |
a687059c LW |
1118 | } |
1119 | } | |
1120 | else { | |
1121 | statstab = Nullstab; | |
c623bd54 | 1122 | str_set(statname,str_get(str)); |
99b89507 | 1123 | laststype = O_STAT; |
bee1dbe2 LW |
1124 | laststatval = stat(str_get(str),&statcache); |
1125 | if (laststatval < 0 && dowarn && index(str_get(str), '\n')) | |
1126 | warn(warn_nl, "stat"); | |
1127 | return laststatval; | |
a687059c LW |
1128 | } |
1129 | } | |
1130 | ||
c623bd54 LW |
1131 | int |
1132 | mylstat(arg,str) | |
1133 | ARG *arg; | |
1134 | STR *str; | |
1135 | { | |
fe14fcc3 LW |
1136 | if (arg[1].arg_type & A_DONT) { |
1137 | if (arg[1].arg_ptr.arg_stab == defstab) { | |
1138 | if (laststype != O_LSTAT) | |
1139 | fatal("The stat preceding -l _ wasn't an lstat"); | |
1140 | return laststatval; | |
1141 | } | |
1142 | fatal("You can't use -l on a filehandle"); | |
1143 | } | |
c623bd54 | 1144 | |
fe14fcc3 | 1145 | laststype = O_LSTAT; |
c623bd54 LW |
1146 | statstab = Nullstab; |
1147 | str_set(statname,str_get(str)); | |
fe14fcc3 | 1148 | #ifdef HAS_LSTAT |
bee1dbe2 | 1149 | laststatval = lstat(str_get(str),&statcache); |
c623bd54 | 1150 | #else |
bee1dbe2 | 1151 | laststatval = stat(str_get(str),&statcache); |
c623bd54 | 1152 | #endif |
bee1dbe2 LW |
1153 | if (laststatval < 0 && dowarn && index(str_get(str), '\n')) |
1154 | warn(warn_nl, "lstat"); | |
1155 | return laststatval; | |
c623bd54 LW |
1156 | } |
1157 | ||
a687059c LW |
1158 | STR * |
1159 | do_fttext(arg,str) | |
1160 | register ARG *arg; | |
1161 | STR *str; | |
1162 | { | |
1163 | int i; | |
1164 | int len; | |
1165 | int odd = 0; | |
1166 | STDCHAR tbuf[512]; | |
1167 | register STDCHAR *s; | |
1168 | register STIO *stio; | |
1169 | ||
1170 | if (arg[1].arg_type & A_DONT) { | |
1171 | if (arg[1].arg_ptr.arg_stab == defstab) { | |
1172 | if (statstab) | |
1173 | stio = stab_io(statstab); | |
1174 | else { | |
1175 | str = statname; | |
1176 | goto really_filename; | |
1177 | } | |
1178 | } | |
1179 | else { | |
1180 | statstab = arg[1].arg_ptr.arg_stab; | |
1181 | str_set(statname,""); | |
1182 | stio = stab_io(statstab); | |
1183 | } | |
1184 | if (stio && stio->ifp) { | |
bee1dbe2 | 1185 | #if defined(STDSTDIO) || defined(atarist) /* this will work with atariST */ |
a687059c | 1186 | fstat(fileno(stio->ifp),&statcache); |
99b89507 LW |
1187 | if (S_ISDIR(statcache.st_mode)) /* handle NFS glitch */ |
1188 | return arg->arg_type == O_FTTEXT ? &str_no : &str_yes; | |
a687059c LW |
1189 | if (stio->ifp->_cnt <= 0) { |
1190 | i = getc(stio->ifp); | |
1191 | if (i != EOF) | |
1192 | (void)ungetc(i,stio->ifp); | |
1193 | } | |
1194 | if (stio->ifp->_cnt <= 0) /* null file is anything */ | |
1195 | return &str_yes; | |
1196 | len = stio->ifp->_cnt + (stio->ifp->_ptr - stio->ifp->_base); | |
1197 | s = stio->ifp->_base; | |
1198 | #else | |
99b89507 | 1199 | fatal("-T and -B not implemented on filehandles"); |
a687059c LW |
1200 | #endif |
1201 | } | |
1202 | else { | |
1203 | if (dowarn) | |
1204 | warn("Test on unopened file <%s>", | |
bee1dbe2 | 1205 | stab_ename(arg[1].arg_ptr.arg_stab)); |
99b89507 | 1206 | errno = EBADF; |
a687059c LW |
1207 | return &str_undef; |
1208 | } | |
1209 | } | |
1210 | else { | |
1211 | statstab = Nullstab; | |
c623bd54 | 1212 | str_set(statname,str_get(str)); |
a687059c LW |
1213 | really_filename: |
1214 | i = open(str_get(str),0); | |
bee1dbe2 LW |
1215 | if (i < 0) { |
1216 | if (dowarn && index(str_get(str), '\n')) | |
1217 | warn(warn_nl, "open"); | |
a687059c | 1218 | return &str_undef; |
bee1dbe2 | 1219 | } |
a687059c LW |
1220 | fstat(i,&statcache); |
1221 | len = read(i,tbuf,512); | |
fe14fcc3 | 1222 | (void)close(i); |
99b89507 LW |
1223 | if (len <= 0) { |
1224 | if (S_ISDIR(statcache.st_mode) && arg->arg_type == O_FTTEXT) | |
1225 | return &str_no; /* special case NFS directories */ | |
1226 | return &str_yes; /* null file is anything */ | |
1227 | } | |
a687059c LW |
1228 | s = tbuf; |
1229 | } | |
1230 | ||
1231 | /* now scan s to look for textiness */ | |
1232 | ||
1233 | for (i = 0; i < len; i++,s++) { | |
1234 | if (!*s) { /* null never allowed in text */ | |
1235 | odd += len; | |
1236 | break; | |
1237 | } | |
1238 | else if (*s & 128) | |
1239 | odd++; | |
1240 | else if (*s < 32 && | |
1241 | *s != '\n' && *s != '\r' && *s != '\b' && | |
1242 | *s != '\t' && *s != '\f' && *s != 27) | |
1243 | odd++; | |
1244 | } | |
1245 | ||
1246 | if ((odd * 10 > len) == (arg->arg_type == O_FTTEXT)) /* allow 10% odd */ | |
1247 | return &str_no; | |
1248 | else | |
1249 | return &str_yes; | |
1250 | } | |
1251 | ||
bee1dbe2 LW |
1252 | static char **Argv = Null(char **); |
1253 | static char *Cmd = Nullch; | |
1254 | ||
a687059c LW |
1255 | bool |
1256 | do_aexec(really,arglast) | |
1257 | STR *really; | |
1258 | int *arglast; | |
1259 | { | |
1260 | register STR **st = stack->ary_array; | |
1261 | register int sp = arglast[1]; | |
1262 | register int items = arglast[2] - sp; | |
1263 | register char **a; | |
a687059c LW |
1264 | char *tmps; |
1265 | ||
1266 | if (items) { | |
bee1dbe2 LW |
1267 | New(401,Argv, items+1, char*); |
1268 | a = Argv; | |
a687059c LW |
1269 | for (st += ++sp; items > 0; items--,st++) { |
1270 | if (*st) | |
1271 | *a++ = str_get(*st); | |
1272 | else | |
1273 | *a++ = ""; | |
1274 | } | |
1275 | *a = Nullch; | |
1276 | #ifdef TAINT | |
bee1dbe2 | 1277 | if (*Argv[0] != '/') /* will execvp use PATH? */ |
a687059c LW |
1278 | taintenv(); /* testing IFS here is overkill, probably */ |
1279 | #endif | |
1280 | if (really && *(tmps = str_get(really))) | |
bee1dbe2 | 1281 | execvp(tmps,Argv); |
a687059c | 1282 | else |
bee1dbe2 | 1283 | execvp(Argv[0],Argv); |
a687059c | 1284 | } |
bee1dbe2 | 1285 | do_execfree(); |
a687059c LW |
1286 | return FALSE; |
1287 | } | |
1288 | ||
fe14fcc3 | 1289 | void |
ff8e2863 LW |
1290 | do_execfree() |
1291 | { | |
1292 | if (Argv) { | |
1293 | Safefree(Argv); | |
1294 | Argv = Null(char **); | |
1295 | } | |
1296 | if (Cmd) { | |
1297 | Safefree(Cmd); | |
1298 | Cmd = Nullch; | |
1299 | } | |
1300 | } | |
1301 | ||
a687059c LW |
1302 | bool |
1303 | do_exec(cmd) | |
1304 | char *cmd; | |
1305 | { | |
1306 | register char **a; | |
1307 | register char *s; | |
a687059c LW |
1308 | char flags[10]; |
1309 | ||
a687059c LW |
1310 | /* save an extra exec if possible */ |
1311 | ||
bf38876a LW |
1312 | #ifdef CSH |
1313 | if (strnEQ(cmd,cshname,cshlen) && strnEQ(cmd+cshlen," -c",3)) { | |
a687059c | 1314 | strcpy(flags,"-c"); |
bf38876a | 1315 | s = cmd+cshlen+3; |
a687059c LW |
1316 | if (*s == 'f') { |
1317 | s++; | |
1318 | strcat(flags,"f"); | |
1319 | } | |
1320 | if (*s == ' ') | |
1321 | s++; | |
1322 | if (*s++ == '\'') { | |
1323 | char *ncmd = s; | |
1324 | ||
1325 | while (*s) | |
1326 | s++; | |
1327 | if (s[-1] == '\n') | |
1328 | *--s = '\0'; | |
1329 | if (s[-1] == '\'') { | |
1330 | *--s = '\0'; | |
bf38876a | 1331 | execl(cshname,"csh", flags,ncmd,(char*)0); |
a687059c LW |
1332 | *s = '\''; |
1333 | return FALSE; | |
1334 | } | |
1335 | } | |
1336 | } | |
bf38876a | 1337 | #endif /* CSH */ |
a687059c LW |
1338 | |
1339 | /* see if there are shell metacharacters in it */ | |
1340 | ||
99b89507 LW |
1341 | /*SUPPRESS 530*/ |
1342 | for (s = cmd; *s && isALPHA(*s); s++) ; /* catch VAR=val gizmo */ | |
63f2c1e1 LW |
1343 | if (*s == '=') |
1344 | goto doshell; | |
a687059c | 1345 | for (s = cmd; *s; s++) { |
99b89507 | 1346 | if (*s != ' ' && !isALPHA(*s) && index("$&*(){}[]'\";\\|?<>~`\n",*s)) { |
a687059c LW |
1347 | if (*s == '\n' && !s[1]) { |
1348 | *s = '\0'; | |
1349 | break; | |
1350 | } | |
1351 | doshell: | |
1352 | execl("/bin/sh","sh","-c",cmd,(char*)0); | |
1353 | return FALSE; | |
1354 | } | |
1355 | } | |
ff8e2863 LW |
1356 | New(402,Argv, (s - cmd) / 2 + 2, char*); |
1357 | Cmd = nsavestr(cmd, s-cmd); | |
1358 | a = Argv; | |
1359 | for (s = Cmd; *s;) { | |
99b89507 | 1360 | while (*s && isSPACE(*s)) s++; |
a687059c LW |
1361 | if (*s) |
1362 | *(a++) = s; | |
99b89507 | 1363 | while (*s && !isSPACE(*s)) s++; |
a687059c LW |
1364 | if (*s) |
1365 | *s++ = '\0'; | |
1366 | } | |
1367 | *a = Nullch; | |
ff8e2863 LW |
1368 | if (Argv[0]) { |
1369 | execvp(Argv[0],Argv); | |
b1248f16 | 1370 | if (errno == ENOEXEC) { /* for system V NIH syndrome */ |
ff8e2863 | 1371 | do_execfree(); |
a687059c | 1372 | goto doshell; |
b1248f16 | 1373 | } |
a687059c | 1374 | } |
ff8e2863 | 1375 | do_execfree(); |
a687059c LW |
1376 | return FALSE; |
1377 | } | |
1378 | ||
fe14fcc3 | 1379 | #ifdef HAS_SOCKET |
a687059c LW |
1380 | int |
1381 | do_socket(stab, arglast) | |
1382 | STAB *stab; | |
1383 | int *arglast; | |
1384 | { | |
1385 | register STR **st = stack->ary_array; | |
1386 | register int sp = arglast[1]; | |
1387 | register STIO *stio; | |
1388 | int domain, type, protocol, fd; | |
1389 | ||
99b89507 LW |
1390 | if (!stab) { |
1391 | errno = EBADF; | |
a687059c | 1392 | return FALSE; |
99b89507 | 1393 | } |
a687059c LW |
1394 | |
1395 | stio = stab_io(stab); | |
1396 | if (!stio) | |
1397 | stio = stab_io(stab) = stio_new(); | |
1398 | else if (stio->ifp) | |
1399 | do_close(stab,FALSE); | |
1400 | ||
1401 | domain = (int)str_gnum(st[++sp]); | |
1402 | type = (int)str_gnum(st[++sp]); | |
1403 | protocol = (int)str_gnum(st[++sp]); | |
1404 | #ifdef TAINT | |
1405 | taintproper("Insecure dependency in socket"); | |
1406 | #endif | |
1407 | fd = socket(domain,type,protocol); | |
1408 | if (fd < 0) | |
1409 | return FALSE; | |
1410 | stio->ifp = fdopen(fd, "r"); /* stdio gets confused about sockets */ | |
1411 | stio->ofp = fdopen(fd, "w"); | |
1412 | stio->type = 's'; | |
fe14fcc3 LW |
1413 | if (!stio->ifp || !stio->ofp) { |
1414 | if (stio->ifp) fclose(stio->ifp); | |
1415 | if (stio->ofp) fclose(stio->ofp); | |
1416 | if (!stio->ifp && !stio->ofp) close(fd); | |
1417 | return FALSE; | |
1418 | } | |
a687059c LW |
1419 | |
1420 | return TRUE; | |
1421 | } | |
1422 | ||
1423 | int | |
1424 | do_bind(stab, arglast) | |
1425 | STAB *stab; | |
1426 | int *arglast; | |
1427 | { | |
1428 | register STR **st = stack->ary_array; | |
1429 | register int sp = arglast[1]; | |
1430 | register STIO *stio; | |
1431 | char *addr; | |
1432 | ||
1433 | if (!stab) | |
1434 | goto nuts; | |
1435 | ||
1436 | stio = stab_io(stab); | |
1437 | if (!stio || !stio->ifp) | |
1438 | goto nuts; | |
1439 | ||
1440 | addr = str_get(st[++sp]); | |
1441 | #ifdef TAINT | |
1442 | taintproper("Insecure dependency in bind"); | |
1443 | #endif | |
1444 | return bind(fileno(stio->ifp), addr, st[sp]->str_cur) >= 0; | |
1445 | ||
1446 | nuts: | |
1447 | if (dowarn) | |
1448 | warn("bind() on closed fd"); | |
99b89507 | 1449 | errno = EBADF; |
a687059c LW |
1450 | return FALSE; |
1451 | ||
1452 | } | |
1453 | ||
1454 | int | |
1455 | do_connect(stab, arglast) | |
1456 | STAB *stab; | |
1457 | int *arglast; | |
1458 | { | |
1459 | register STR **st = stack->ary_array; | |
1460 | register int sp = arglast[1]; | |
1461 | register STIO *stio; | |
1462 | char *addr; | |
1463 | ||
1464 | if (!stab) | |
1465 | goto nuts; | |
1466 | ||
1467 | stio = stab_io(stab); | |
1468 | if (!stio || !stio->ifp) | |
1469 | goto nuts; | |
1470 | ||
1471 | addr = str_get(st[++sp]); | |
1472 | #ifdef TAINT | |
1473 | taintproper("Insecure dependency in connect"); | |
1474 | #endif | |
1475 | return connect(fileno(stio->ifp), addr, st[sp]->str_cur) >= 0; | |
1476 | ||
1477 | nuts: | |
1478 | if (dowarn) | |
1479 | warn("connect() on closed fd"); | |
99b89507 | 1480 | errno = EBADF; |
a687059c LW |
1481 | return FALSE; |
1482 | ||
1483 | } | |
1484 | ||
1485 | int | |
1486 | do_listen(stab, arglast) | |
1487 | STAB *stab; | |
1488 | int *arglast; | |
1489 | { | |
1490 | register STR **st = stack->ary_array; | |
1491 | register int sp = arglast[1]; | |
1492 | register STIO *stio; | |
1493 | int backlog; | |
1494 | ||
1495 | if (!stab) | |
1496 | goto nuts; | |
1497 | ||
1498 | stio = stab_io(stab); | |
1499 | if (!stio || !stio->ifp) | |
1500 | goto nuts; | |
1501 | ||
1502 | backlog = (int)str_gnum(st[++sp]); | |
1503 | return listen(fileno(stio->ifp), backlog) >= 0; | |
1504 | ||
1505 | nuts: | |
1506 | if (dowarn) | |
1507 | warn("listen() on closed fd"); | |
99b89507 | 1508 | errno = EBADF; |
a687059c LW |
1509 | return FALSE; |
1510 | } | |
1511 | ||
1512 | void | |
1513 | do_accept(str, nstab, gstab) | |
1514 | STR *str; | |
1515 | STAB *nstab; | |
1516 | STAB *gstab; | |
1517 | { | |
1518 | register STIO *nstio; | |
1519 | register STIO *gstio; | |
1520 | int len = sizeof buf; | |
1521 | int fd; | |
1522 | ||
1523 | if (!nstab) | |
1524 | goto badexit; | |
1525 | if (!gstab) | |
1526 | goto nuts; | |
1527 | ||
1528 | gstio = stab_io(gstab); | |
1529 | nstio = stab_io(nstab); | |
1530 | ||
1531 | if (!gstio || !gstio->ifp) | |
1532 | goto nuts; | |
1533 | if (!nstio) | |
1534 | nstio = stab_io(nstab) = stio_new(); | |
1535 | else if (nstio->ifp) | |
1536 | do_close(nstab,FALSE); | |
1537 | ||
6e21c824 | 1538 | fd = accept(fileno(gstio->ifp),(struct sockaddr *)buf,&len); |
a687059c LW |
1539 | if (fd < 0) |
1540 | goto badexit; | |
1541 | nstio->ifp = fdopen(fd, "r"); | |
1542 | nstio->ofp = fdopen(fd, "w"); | |
1543 | nstio->type = 's'; | |
fe14fcc3 LW |
1544 | if (!nstio->ifp || !nstio->ofp) { |
1545 | if (nstio->ifp) fclose(nstio->ifp); | |
1546 | if (nstio->ofp) fclose(nstio->ofp); | |
1547 | if (!nstio->ifp && !nstio->ofp) close(fd); | |
1548 | goto badexit; | |
1549 | } | |
a687059c LW |
1550 | |
1551 | str_nset(str, buf, len); | |
1552 | return; | |
1553 | ||
1554 | nuts: | |
1555 | if (dowarn) | |
1556 | warn("accept() on closed fd"); | |
99b89507 | 1557 | errno = EBADF; |
a687059c LW |
1558 | badexit: |
1559 | str_sset(str,&str_undef); | |
1560 | return; | |
1561 | } | |
1562 | ||
1563 | int | |
1564 | do_shutdown(stab, arglast) | |
1565 | STAB *stab; | |
1566 | int *arglast; | |
1567 | { | |
1568 | register STR **st = stack->ary_array; | |
1569 | register int sp = arglast[1]; | |
1570 | register STIO *stio; | |
1571 | int how; | |
1572 | ||
1573 | if (!stab) | |
1574 | goto nuts; | |
1575 | ||
1576 | stio = stab_io(stab); | |
1577 | if (!stio || !stio->ifp) | |
1578 | goto nuts; | |
1579 | ||
1580 | how = (int)str_gnum(st[++sp]); | |
1581 | return shutdown(fileno(stio->ifp), how) >= 0; | |
1582 | ||
1583 | nuts: | |
1584 | if (dowarn) | |
1585 | warn("shutdown() on closed fd"); | |
99b89507 | 1586 | errno = EBADF; |
a687059c LW |
1587 | return FALSE; |
1588 | ||
1589 | } | |
1590 | ||
1591 | int | |
1592 | do_sopt(optype, stab, arglast) | |
1593 | int optype; | |
1594 | STAB *stab; | |
1595 | int *arglast; | |
1596 | { | |
1597 | register STR **st = stack->ary_array; | |
1598 | register int sp = arglast[1]; | |
1599 | register STIO *stio; | |
1600 | int fd; | |
bee1dbe2 LW |
1601 | unsigned int lvl; |
1602 | unsigned int optname; | |
a687059c LW |
1603 | |
1604 | if (!stab) | |
1605 | goto nuts; | |
1606 | ||
1607 | stio = stab_io(stab); | |
1608 | if (!stio || !stio->ifp) | |
1609 | goto nuts; | |
1610 | ||
1611 | fd = fileno(stio->ifp); | |
bee1dbe2 LW |
1612 | lvl = (unsigned int)str_gnum(st[sp+1]); |
1613 | optname = (unsigned int)str_gnum(st[sp+2]); | |
a687059c LW |
1614 | switch (optype) { |
1615 | case O_GSOCKOPT: | |
99b89507 | 1616 | st[sp] = str_2mortal(Str_new(22,257)); |
a687059c | 1617 | st[sp]->str_cur = 256; |
bf38876a | 1618 | st[sp]->str_pok = 1; |
bee1dbe2 LW |
1619 | if (getsockopt(fd, lvl, optname, st[sp]->str_ptr, |
1620 | (int*)&st[sp]->str_cur) < 0) | |
a687059c LW |
1621 | goto nuts; |
1622 | break; | |
1623 | case O_SSOCKOPT: | |
1624 | st[sp] = st[sp+3]; | |
1625 | if (setsockopt(fd, lvl, optname, st[sp]->str_ptr, st[sp]->str_cur) < 0) | |
1626 | goto nuts; | |
1627 | st[sp] = &str_yes; | |
1628 | break; | |
1629 | } | |
1630 | ||
1631 | return sp; | |
1632 | ||
1633 | nuts: | |
1634 | if (dowarn) | |
bf38876a | 1635 | warn("[gs]etsockopt() on closed fd"); |
a687059c | 1636 | st[sp] = &str_undef; |
99b89507 | 1637 | errno = EBADF; |
a687059c LW |
1638 | return sp; |
1639 | ||
1640 | } | |
1641 | ||
1642 | int | |
1643 | do_getsockname(optype, stab, arglast) | |
1644 | int optype; | |
1645 | STAB *stab; | |
1646 | int *arglast; | |
1647 | { | |
1648 | register STR **st = stack->ary_array; | |
1649 | register int sp = arglast[1]; | |
1650 | register STIO *stio; | |
1651 | int fd; | |
1652 | ||
1653 | if (!stab) | |
1654 | goto nuts; | |
1655 | ||
1656 | stio = stab_io(stab); | |
1657 | if (!stio || !stio->ifp) | |
1658 | goto nuts; | |
1659 | ||
99b89507 | 1660 | st[sp] = str_2mortal(Str_new(22,257)); |
a687059c | 1661 | st[sp]->str_cur = 256; |
bf38876a | 1662 | st[sp]->str_pok = 1; |
a687059c LW |
1663 | fd = fileno(stio->ifp); |
1664 | switch (optype) { | |
1665 | case O_GETSOCKNAME: | |
bee1dbe2 | 1666 | if (getsockname(fd, st[sp]->str_ptr, (int*)&st[sp]->str_cur) < 0) |
ff8e2863 | 1667 | goto nuts2; |
a687059c LW |
1668 | break; |
1669 | case O_GETPEERNAME: | |
bee1dbe2 | 1670 | if (getpeername(fd, st[sp]->str_ptr, (int*)&st[sp]->str_cur) < 0) |
ff8e2863 | 1671 | goto nuts2; |
a687059c LW |
1672 | break; |
1673 | } | |
1674 | ||
1675 | return sp; | |
1676 | ||
1677 | nuts: | |
1678 | if (dowarn) | |
bf38876a | 1679 | warn("get{sock,peer}name() on closed fd"); |
99b89507 | 1680 | errno = EBADF; |
ff8e2863 | 1681 | nuts2: |
a687059c LW |
1682 | st[sp] = &str_undef; |
1683 | return sp; | |
1684 | ||
1685 | } | |
1686 | ||
1687 | int | |
1688 | do_ghent(which,gimme,arglast) | |
1689 | int which; | |
1690 | int gimme; | |
1691 | int *arglast; | |
1692 | { | |
1693 | register ARRAY *ary = stack; | |
1694 | register int sp = arglast[0]; | |
1695 | register char **elem; | |
1696 | register STR *str; | |
bf38876a | 1697 | struct hostent *gethostbyname(); |
a687059c | 1698 | struct hostent *gethostbyaddr(); |
fe14fcc3 | 1699 | #ifdef HAS_GETHOSTENT |
a687059c LW |
1700 | struct hostent *gethostent(); |
1701 | #endif | |
1702 | struct hostent *hent; | |
1703 | unsigned long len; | |
1704 | ||
a687059c LW |
1705 | if (which == O_GHBYNAME) { |
1706 | char *name = str_get(ary->ary_array[sp+1]); | |
1707 | ||
1708 | hent = gethostbyname(name); | |
1709 | } | |
1710 | else if (which == O_GHBYADDR) { | |
1711 | STR *addrstr = ary->ary_array[sp+1]; | |
1712 | int addrtype = (int)str_gnum(ary->ary_array[sp+2]); | |
1713 | char *addr = str_get(addrstr); | |
1714 | ||
1715 | hent = gethostbyaddr(addr,addrstr->str_cur,addrtype); | |
1716 | } | |
1717 | else | |
fe14fcc3 | 1718 | #ifdef HAS_GETHOSTENT |
a687059c LW |
1719 | hent = gethostent(); |
1720 | #else | |
1721 | fatal("gethostent not implemented"); | |
1722 | #endif | |
bee1dbe2 LW |
1723 | |
1724 | #ifdef HOST_NOT_FOUND | |
1725 | if (!hent) | |
1726 | statusvalue = (unsigned short)h_errno & 0xffff; | |
1727 | #endif | |
1728 | ||
1729 | if (gimme != G_ARRAY) { | |
1730 | astore(ary, ++sp, str = str_mortal(&str_undef)); | |
1731 | if (hent) { | |
1732 | if (which == O_GHBYNAME) { | |
1733 | #ifdef h_addr | |
1734 | str_nset(str, *hent->h_addr, hent->h_length); | |
1735 | #else | |
1736 | str_nset(str, hent->h_addr, hent->h_length); | |
1737 | #endif | |
1738 | } | |
1739 | else | |
1740 | str_set(str, hent->h_name); | |
1741 | } | |
1742 | return sp; | |
1743 | } | |
1744 | ||
a687059c LW |
1745 | if (hent) { |
1746 | #ifndef lint | |
fe14fcc3 | 1747 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c | 1748 | str_set(str, hent->h_name); |
fe14fcc3 | 1749 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c LW |
1750 | for (elem = hent->h_aliases; *elem; elem++) { |
1751 | str_cat(str, *elem); | |
1752 | if (elem[1]) | |
1753 | str_ncat(str," ",1); | |
1754 | } | |
fe14fcc3 | 1755 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c | 1756 | str_numset(str, (double)hent->h_addrtype); |
fe14fcc3 | 1757 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c LW |
1758 | len = hent->h_length; |
1759 | str_numset(str, (double)len); | |
1760 | #ifdef h_addr | |
1761 | for (elem = hent->h_addr_list; *elem; elem++) { | |
fe14fcc3 | 1762 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c LW |
1763 | str_nset(str, *elem, len); |
1764 | } | |
1765 | #else | |
fe14fcc3 | 1766 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c LW |
1767 | str_nset(str, hent->h_addr, len); |
1768 | #endif /* h_addr */ | |
1769 | #else /* lint */ | |
1770 | elem = Nullch; | |
1771 | elem = elem; | |
fe14fcc3 | 1772 | (void)astore(ary, ++sp, str_mortal(&str_no)); |
a687059c LW |
1773 | #endif /* lint */ |
1774 | } | |
1775 | ||
1776 | return sp; | |
1777 | } | |
1778 | ||
1779 | int | |
1780 | do_gnent(which,gimme,arglast) | |
1781 | int which; | |
1782 | int gimme; | |
1783 | int *arglast; | |
1784 | { | |
1785 | register ARRAY *ary = stack; | |
1786 | register int sp = arglast[0]; | |
1787 | register char **elem; | |
1788 | register STR *str; | |
1789 | struct netent *getnetbyname(); | |
1790 | struct netent *getnetbyaddr(); | |
1791 | struct netent *getnetent(); | |
1792 | struct netent *nent; | |
1793 | ||
a687059c LW |
1794 | if (which == O_GNBYNAME) { |
1795 | char *name = str_get(ary->ary_array[sp+1]); | |
1796 | ||
1797 | nent = getnetbyname(name); | |
1798 | } | |
1799 | else if (which == O_GNBYADDR) { | |
fe14fcc3 | 1800 | unsigned long addr = U_L(str_gnum(ary->ary_array[sp+1])); |
a687059c | 1801 | int addrtype = (int)str_gnum(ary->ary_array[sp+2]); |
a687059c | 1802 | |
fe14fcc3 | 1803 | nent = getnetbyaddr((long)addr,addrtype); |
a687059c LW |
1804 | } |
1805 | else | |
1806 | nent = getnetent(); | |
1807 | ||
bee1dbe2 LW |
1808 | if (gimme != G_ARRAY) { |
1809 | astore(ary, ++sp, str = str_mortal(&str_undef)); | |
1810 | if (nent) { | |
1811 | if (which == O_GNBYNAME) | |
1812 | str_numset(str, (double)nent->n_net); | |
1813 | else | |
1814 | str_set(str, nent->n_name); | |
1815 | } | |
1816 | return sp; | |
1817 | } | |
1818 | ||
a687059c LW |
1819 | if (nent) { |
1820 | #ifndef lint | |
fe14fcc3 | 1821 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c | 1822 | str_set(str, nent->n_name); |
fe14fcc3 | 1823 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c LW |
1824 | for (elem = nent->n_aliases; *elem; elem++) { |
1825 | str_cat(str, *elem); | |
1826 | if (elem[1]) | |
1827 | str_ncat(str," ",1); | |
1828 | } | |
fe14fcc3 | 1829 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c | 1830 | str_numset(str, (double)nent->n_addrtype); |
fe14fcc3 | 1831 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c LW |
1832 | str_numset(str, (double)nent->n_net); |
1833 | #else /* lint */ | |
1834 | elem = Nullch; | |
1835 | elem = elem; | |
fe14fcc3 | 1836 | (void)astore(ary, ++sp, str_mortal(&str_no)); |
a687059c LW |
1837 | #endif /* lint */ |
1838 | } | |
1839 | ||
1840 | return sp; | |
1841 | } | |
1842 | ||
1843 | int | |
1844 | do_gpent(which,gimme,arglast) | |
1845 | int which; | |
1846 | int gimme; | |
1847 | int *arglast; | |
1848 | { | |
1849 | register ARRAY *ary = stack; | |
1850 | register int sp = arglast[0]; | |
1851 | register char **elem; | |
1852 | register STR *str; | |
1853 | struct protoent *getprotobyname(); | |
1854 | struct protoent *getprotobynumber(); | |
1855 | struct protoent *getprotoent(); | |
1856 | struct protoent *pent; | |
1857 | ||
a687059c LW |
1858 | if (which == O_GPBYNAME) { |
1859 | char *name = str_get(ary->ary_array[sp+1]); | |
1860 | ||
1861 | pent = getprotobyname(name); | |
1862 | } | |
1863 | else if (which == O_GPBYNUMBER) { | |
1864 | int proto = (int)str_gnum(ary->ary_array[sp+1]); | |
1865 | ||
1866 | pent = getprotobynumber(proto); | |
1867 | } | |
1868 | else | |
1869 | pent = getprotoent(); | |
1870 | ||
bee1dbe2 LW |
1871 | if (gimme != G_ARRAY) { |
1872 | astore(ary, ++sp, str = str_mortal(&str_undef)); | |
1873 | if (pent) { | |
1874 | if (which == O_GPBYNAME) | |
1875 | str_numset(str, (double)pent->p_proto); | |
1876 | else | |
1877 | str_set(str, pent->p_name); | |
1878 | } | |
1879 | return sp; | |
1880 | } | |
1881 | ||
a687059c LW |
1882 | if (pent) { |
1883 | #ifndef lint | |
fe14fcc3 | 1884 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c | 1885 | str_set(str, pent->p_name); |
fe14fcc3 | 1886 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c LW |
1887 | for (elem = pent->p_aliases; *elem; elem++) { |
1888 | str_cat(str, *elem); | |
1889 | if (elem[1]) | |
1890 | str_ncat(str," ",1); | |
1891 | } | |
fe14fcc3 | 1892 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c LW |
1893 | str_numset(str, (double)pent->p_proto); |
1894 | #else /* lint */ | |
1895 | elem = Nullch; | |
1896 | elem = elem; | |
fe14fcc3 | 1897 | (void)astore(ary, ++sp, str_mortal(&str_no)); |
a687059c LW |
1898 | #endif /* lint */ |
1899 | } | |
1900 | ||
1901 | return sp; | |
1902 | } | |
1903 | ||
1904 | int | |
1905 | do_gsent(which,gimme,arglast) | |
1906 | int which; | |
1907 | int gimme; | |
1908 | int *arglast; | |
1909 | { | |
1910 | register ARRAY *ary = stack; | |
1911 | register int sp = arglast[0]; | |
1912 | register char **elem; | |
1913 | register STR *str; | |
1914 | struct servent *getservbyname(); | |
1915 | struct servent *getservbynumber(); | |
1916 | struct servent *getservent(); | |
1917 | struct servent *sent; | |
1918 | ||
a687059c LW |
1919 | if (which == O_GSBYNAME) { |
1920 | char *name = str_get(ary->ary_array[sp+1]); | |
1921 | char *proto = str_get(ary->ary_array[sp+2]); | |
1922 | ||
1923 | if (proto && !*proto) | |
1924 | proto = Nullch; | |
1925 | ||
1926 | sent = getservbyname(name,proto); | |
1927 | } | |
1928 | else if (which == O_GSBYPORT) { | |
1929 | int port = (int)str_gnum(ary->ary_array[sp+1]); | |
1930 | char *proto = str_get(ary->ary_array[sp+2]); | |
1931 | ||
1932 | sent = getservbyport(port,proto); | |
1933 | } | |
1934 | else | |
1935 | sent = getservent(); | |
bee1dbe2 LW |
1936 | |
1937 | if (gimme != G_ARRAY) { | |
1938 | astore(ary, ++sp, str = str_mortal(&str_undef)); | |
1939 | if (sent) { | |
1940 | if (which == O_GSBYNAME) { | |
1941 | #ifdef HAS_NTOHS | |
1942 | str_numset(str, (double)ntohs(sent->s_port)); | |
1943 | #else | |
1944 | str_numset(str, (double)(sent->s_port)); | |
1945 | #endif | |
1946 | } | |
1947 | else | |
1948 | str_set(str, sent->s_name); | |
1949 | } | |
1950 | return sp; | |
1951 | } | |
1952 | ||
a687059c LW |
1953 | if (sent) { |
1954 | #ifndef lint | |
fe14fcc3 | 1955 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c | 1956 | str_set(str, sent->s_name); |
fe14fcc3 | 1957 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c LW |
1958 | for (elem = sent->s_aliases; *elem; elem++) { |
1959 | str_cat(str, *elem); | |
1960 | if (elem[1]) | |
1961 | str_ncat(str," ",1); | |
1962 | } | |
fe14fcc3 LW |
1963 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
1964 | #ifdef HAS_NTOHS | |
a687059c LW |
1965 | str_numset(str, (double)ntohs(sent->s_port)); |
1966 | #else | |
1967 | str_numset(str, (double)(sent->s_port)); | |
1968 | #endif | |
fe14fcc3 | 1969 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c LW |
1970 | str_set(str, sent->s_proto); |
1971 | #else /* lint */ | |
1972 | elem = Nullch; | |
1973 | elem = elem; | |
fe14fcc3 | 1974 | (void)astore(ary, ++sp, str_mortal(&str_no)); |
a687059c LW |
1975 | #endif /* lint */ |
1976 | } | |
1977 | ||
1978 | return sp; | |
1979 | } | |
1980 | ||
fe14fcc3 | 1981 | #endif /* HAS_SOCKET */ |
ff8e2863 | 1982 | |
fe14fcc3 | 1983 | #ifdef HAS_SELECT |
a687059c LW |
1984 | int |
1985 | do_select(gimme,arglast) | |
1986 | int gimme; | |
1987 | int *arglast; | |
1988 | { | |
1989 | register STR **st = stack->ary_array; | |
1990 | register int sp = arglast[0]; | |
1991 | register int i; | |
1992 | register int j; | |
1993 | register char *s; | |
1994 | register STR *str; | |
1995 | double value; | |
1996 | int maxlen = 0; | |
1997 | int nfound; | |
1998 | struct timeval timebuf; | |
1999 | struct timeval *tbuf = &timebuf; | |
663a0e37 LW |
2000 | int growsize; |
2001 | #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678 | |
2002 | int masksize; | |
2003 | int offset; | |
2004 | char *fd_sets[4]; | |
2005 | int k; | |
2006 | ||
2007 | #if BYTEORDER & 0xf0000 | |
2008 | #define ORDERBYTE (0x88888888 - BYTEORDER) | |
2009 | #else | |
2010 | #define ORDERBYTE (0x4444 - BYTEORDER) | |
2011 | #endif | |
2012 | ||
2013 | #endif | |
a687059c LW |
2014 | |
2015 | for (i = 1; i <= 3; i++) { | |
663a0e37 | 2016 | j = st[sp+i]->str_cur; |
a687059c LW |
2017 | if (maxlen < j) |
2018 | maxlen = j; | |
2019 | } | |
663a0e37 LW |
2020 | |
2021 | #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678 | |
2022 | growsize = maxlen; /* little endians can use vecs directly */ | |
2023 | #else | |
2024 | #ifdef NFDBITS | |
2025 | ||
2026 | #ifndef NBBY | |
2027 | #define NBBY 8 | |
2028 | #endif | |
2029 | ||
2030 | masksize = NFDBITS / NBBY; | |
2031 | #else | |
2032 | masksize = sizeof(long); /* documented int, everyone seems to use long */ | |
2033 | #endif | |
2034 | growsize = maxlen + (masksize - (maxlen % masksize)); | |
2035 | Zero(&fd_sets[0], 4, char*); | |
2036 | #endif | |
2037 | ||
a687059c LW |
2038 | for (i = 1; i <= 3; i++) { |
2039 | str = st[sp+i]; | |
2040 | j = str->str_len; | |
663a0e37 | 2041 | if (j < growsize) { |
a687059c | 2042 | if (str->str_pok) { |
ff8e2863 | 2043 | Str_Grow(str,growsize); |
a687059c | 2044 | s = str_get(str) + j; |
663a0e37 | 2045 | while (++j <= growsize) { |
a687059c LW |
2046 | *s++ = '\0'; |
2047 | } | |
2048 | } | |
2049 | else if (str->str_ptr) { | |
2050 | Safefree(str->str_ptr); | |
2051 | str->str_ptr = Nullch; | |
2052 | } | |
2053 | } | |
663a0e37 LW |
2054 | #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678 |
2055 | s = str->str_ptr; | |
2056 | if (s) { | |
2057 | New(403, fd_sets[i], growsize, char); | |
2058 | for (offset = 0; offset < growsize; offset += masksize) { | |
2059 | for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4)) | |
2060 | fd_sets[i][j+offset] = s[(k % masksize) + offset]; | |
2061 | } | |
2062 | } | |
2063 | #endif | |
a687059c LW |
2064 | } |
2065 | str = st[sp+4]; | |
2066 | if (str->str_nok || str->str_pok) { | |
2067 | value = str_gnum(str); | |
2068 | if (value < 0.0) | |
2069 | value = 0.0; | |
2070 | timebuf.tv_sec = (long)value; | |
2071 | value -= (double)timebuf.tv_sec; | |
2072 | timebuf.tv_usec = (long)(value * 1000000.0); | |
2073 | } | |
2074 | else | |
2075 | tbuf = Null(struct timeval*); | |
2076 | ||
663a0e37 | 2077 | #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678 |
a687059c LW |
2078 | nfound = select( |
2079 | maxlen * 8, | |
2080 | st[sp+1]->str_ptr, | |
2081 | st[sp+2]->str_ptr, | |
2082 | st[sp+3]->str_ptr, | |
2083 | tbuf); | |
663a0e37 LW |
2084 | #else |
2085 | nfound = select( | |
2086 | maxlen * 8, | |
2087 | fd_sets[1], | |
2088 | fd_sets[2], | |
2089 | fd_sets[3], | |
2090 | tbuf); | |
2091 | for (i = 1; i <= 3; i++) { | |
2092 | if (fd_sets[i]) { | |
2093 | str = st[sp+i]; | |
2094 | s = str->str_ptr; | |
2095 | for (offset = 0; offset < growsize; offset += masksize) { | |
2096 | for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4)) | |
2097 | s[(k % masksize) + offset] = fd_sets[i][j+offset]; | |
2098 | } | |
bee1dbe2 | 2099 | Safefree(fd_sets[i]); |
663a0e37 LW |
2100 | } |
2101 | } | |
2102 | #endif | |
a687059c | 2103 | |
fe14fcc3 | 2104 | st[++sp] = str_mortal(&str_no); |
a687059c LW |
2105 | str_numset(st[sp], (double)nfound); |
2106 | if (gimme == G_ARRAY && tbuf) { | |
2107 | value = (double)(timebuf.tv_sec) + | |
2108 | (double)(timebuf.tv_usec) / 1000000.0; | |
fe14fcc3 | 2109 | st[++sp] = str_mortal(&str_no); |
a687059c LW |
2110 | str_numset(st[sp], value); |
2111 | } | |
2112 | return sp; | |
2113 | } | |
ff8e2863 | 2114 | #endif /* SELECT */ |
a687059c | 2115 | |
fe14fcc3 | 2116 | #ifdef HAS_SOCKET |
a687059c LW |
2117 | int |
2118 | do_spair(stab1, stab2, arglast) | |
2119 | STAB *stab1; | |
2120 | STAB *stab2; | |
2121 | int *arglast; | |
2122 | { | |
2123 | register STR **st = stack->ary_array; | |
2124 | register int sp = arglast[2]; | |
2125 | register STIO *stio1; | |
2126 | register STIO *stio2; | |
2127 | int domain, type, protocol, fd[2]; | |
2128 | ||
2129 | if (!stab1 || !stab2) | |
2130 | return FALSE; | |
2131 | ||
2132 | stio1 = stab_io(stab1); | |
2133 | stio2 = stab_io(stab2); | |
2134 | if (!stio1) | |
2135 | stio1 = stab_io(stab1) = stio_new(); | |
2136 | else if (stio1->ifp) | |
2137 | do_close(stab1,FALSE); | |
2138 | if (!stio2) | |
2139 | stio2 = stab_io(stab2) = stio_new(); | |
2140 | else if (stio2->ifp) | |
2141 | do_close(stab2,FALSE); | |
2142 | ||
2143 | domain = (int)str_gnum(st[++sp]); | |
2144 | type = (int)str_gnum(st[++sp]); | |
2145 | protocol = (int)str_gnum(st[++sp]); | |
2146 | #ifdef TAINT | |
2147 | taintproper("Insecure dependency in socketpair"); | |
2148 | #endif | |
fe14fcc3 | 2149 | #ifdef HAS_SOCKETPAIR |
a687059c LW |
2150 | if (socketpair(domain,type,protocol,fd) < 0) |
2151 | return FALSE; | |
2152 | #else | |
2153 | fatal("Socketpair unimplemented"); | |
2154 | #endif | |
2155 | stio1->ifp = fdopen(fd[0], "r"); | |
2156 | stio1->ofp = fdopen(fd[0], "w"); | |
2157 | stio1->type = 's'; | |
2158 | stio2->ifp = fdopen(fd[1], "r"); | |
2159 | stio2->ofp = fdopen(fd[1], "w"); | |
2160 | stio2->type = 's'; | |
fe14fcc3 LW |
2161 | if (!stio1->ifp || !stio1->ofp || !stio2->ifp || !stio2->ofp) { |
2162 | if (stio1->ifp) fclose(stio1->ifp); | |
2163 | if (stio1->ofp) fclose(stio1->ofp); | |
2164 | if (!stio1->ifp && !stio1->ofp) close(fd[0]); | |
2165 | if (stio2->ifp) fclose(stio2->ifp); | |
2166 | if (stio2->ofp) fclose(stio2->ofp); | |
2167 | if (!stio2->ifp && !stio2->ofp) close(fd[1]); | |
2168 | return FALSE; | |
2169 | } | |
a687059c LW |
2170 | |
2171 | return TRUE; | |
2172 | } | |
2173 | ||
fe14fcc3 | 2174 | #endif /* HAS_SOCKET */ |
a687059c LW |
2175 | |
2176 | int | |
2177 | do_gpwent(which,gimme,arglast) | |
2178 | int which; | |
2179 | int gimme; | |
2180 | int *arglast; | |
2181 | { | |
2182 | #ifdef I_PWD | |
2183 | register ARRAY *ary = stack; | |
2184 | register int sp = arglast[0]; | |
a687059c LW |
2185 | register STR *str; |
2186 | struct passwd *getpwnam(); | |
2187 | struct passwd *getpwuid(); | |
2188 | struct passwd *getpwent(); | |
2189 | struct passwd *pwent; | |
a687059c | 2190 | |
a687059c LW |
2191 | if (which == O_GPWNAM) { |
2192 | char *name = str_get(ary->ary_array[sp+1]); | |
2193 | ||
2194 | pwent = getpwnam(name); | |
2195 | } | |
2196 | else if (which == O_GPWUID) { | |
2197 | int uid = (int)str_gnum(ary->ary_array[sp+1]); | |
2198 | ||
2199 | pwent = getpwuid(uid); | |
2200 | } | |
2201 | else | |
2202 | pwent = getpwent(); | |
2203 | ||
bee1dbe2 LW |
2204 | if (gimme != G_ARRAY) { |
2205 | astore(ary, ++sp, str = str_mortal(&str_undef)); | |
2206 | if (pwent) { | |
2207 | if (which == O_GPWNAM) | |
2208 | str_numset(str, (double)pwent->pw_uid); | |
2209 | else | |
2210 | str_set(str, pwent->pw_name); | |
2211 | } | |
2212 | return sp; | |
2213 | } | |
2214 | ||
a687059c | 2215 | if (pwent) { |
fe14fcc3 | 2216 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c | 2217 | str_set(str, pwent->pw_name); |
fe14fcc3 | 2218 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c | 2219 | str_set(str, pwent->pw_passwd); |
fe14fcc3 | 2220 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c | 2221 | str_numset(str, (double)pwent->pw_uid); |
fe14fcc3 | 2222 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c | 2223 | str_numset(str, (double)pwent->pw_gid); |
fe14fcc3 | 2224 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
03a14243 LW |
2225 | #ifdef PWCHANGE |
2226 | str_numset(str, (double)pwent->pw_change); | |
2227 | #else | |
a687059c LW |
2228 | #ifdef PWQUOTA |
2229 | str_numset(str, (double)pwent->pw_quota); | |
2230 | #else | |
2231 | #ifdef PWAGE | |
2232 | str_set(str, pwent->pw_age); | |
2233 | #endif | |
2234 | #endif | |
03a14243 | 2235 | #endif |
fe14fcc3 | 2236 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
03a14243 LW |
2237 | #ifdef PWCLASS |
2238 | str_set(str,pwent->pw_class); | |
2239 | #else | |
c2ab57d4 | 2240 | #ifdef PWCOMMENT |
a687059c | 2241 | str_set(str, pwent->pw_comment); |
03a14243 | 2242 | #endif |
c2ab57d4 | 2243 | #endif |
fe14fcc3 | 2244 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c | 2245 | str_set(str, pwent->pw_gecos); |
fe14fcc3 | 2246 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c | 2247 | str_set(str, pwent->pw_dir); |
fe14fcc3 | 2248 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c | 2249 | str_set(str, pwent->pw_shell); |
03a14243 | 2250 | #ifdef PWEXPIRE |
fe14fcc3 | 2251 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
03a14243 LW |
2252 | str_numset(str, (double)pwent->pw_expire); |
2253 | #endif | |
a687059c LW |
2254 | } |
2255 | ||
2256 | return sp; | |
2257 | #else | |
2258 | fatal("password routines not implemented"); | |
2259 | #endif | |
2260 | } | |
2261 | ||
2262 | int | |
2263 | do_ggrent(which,gimme,arglast) | |
2264 | int which; | |
2265 | int gimme; | |
2266 | int *arglast; | |
2267 | { | |
2268 | #ifdef I_GRP | |
2269 | register ARRAY *ary = stack; | |
2270 | register int sp = arglast[0]; | |
2271 | register char **elem; | |
2272 | register STR *str; | |
2273 | struct group *getgrnam(); | |
2274 | struct group *getgrgid(); | |
2275 | struct group *getgrent(); | |
2276 | struct group *grent; | |
a687059c | 2277 | |
a687059c LW |
2278 | if (which == O_GGRNAM) { |
2279 | char *name = str_get(ary->ary_array[sp+1]); | |
2280 | ||
2281 | grent = getgrnam(name); | |
2282 | } | |
2283 | else if (which == O_GGRGID) { | |
2284 | int gid = (int)str_gnum(ary->ary_array[sp+1]); | |
2285 | ||
2286 | grent = getgrgid(gid); | |
2287 | } | |
2288 | else | |
2289 | grent = getgrent(); | |
2290 | ||
bee1dbe2 LW |
2291 | if (gimme != G_ARRAY) { |
2292 | astore(ary, ++sp, str = str_mortal(&str_undef)); | |
2293 | if (grent) { | |
2294 | if (which == O_GGRNAM) | |
2295 | str_numset(str, (double)grent->gr_gid); | |
2296 | else | |
2297 | str_set(str, grent->gr_name); | |
2298 | } | |
2299 | return sp; | |
2300 | } | |
2301 | ||
a687059c | 2302 | if (grent) { |
fe14fcc3 | 2303 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c | 2304 | str_set(str, grent->gr_name); |
fe14fcc3 | 2305 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c | 2306 | str_set(str, grent->gr_passwd); |
fe14fcc3 | 2307 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c | 2308 | str_numset(str, (double)grent->gr_gid); |
fe14fcc3 | 2309 | (void)astore(ary, ++sp, str = str_mortal(&str_no)); |
a687059c LW |
2310 | for (elem = grent->gr_mem; *elem; elem++) { |
2311 | str_cat(str, *elem); | |
2312 | if (elem[1]) | |
2313 | str_ncat(str," ",1); | |
2314 | } | |
2315 | } | |
2316 | ||
2317 | return sp; | |
2318 | #else | |
2319 | fatal("group routines not implemented"); | |
2320 | #endif | |
2321 | } | |
2322 | ||
2323 | int | |
2324 | do_dirop(optype,stab,gimme,arglast) | |
2325 | int optype; | |
2326 | STAB *stab; | |
2327 | int gimme; | |
2328 | int *arglast; | |
2329 | { | |
fe14fcc3 | 2330 | #if defined(DIRENT) && defined(HAS_READDIR) |
a687059c LW |
2331 | register ARRAY *ary = stack; |
2332 | register STR **st = ary->ary_array; | |
2333 | register int sp = arglast[1]; | |
2334 | register STIO *stio; | |
2335 | long along; | |
6e21c824 | 2336 | #ifndef apollo |
a687059c | 2337 | struct DIRENT *readdir(); |
6e21c824 | 2338 | #endif |
a687059c LW |
2339 | register struct DIRENT *dp; |
2340 | ||
2341 | if (!stab) | |
2342 | goto nope; | |
2343 | if (!(stio = stab_io(stab))) | |
2344 | stio = stab_io(stab) = stio_new(); | |
6e21c824 | 2345 | if (!stio->dirp && optype != O_OPEN_DIR) |
a687059c LW |
2346 | goto nope; |
2347 | st[sp] = &str_yes; | |
2348 | switch (optype) { | |
6e21c824 | 2349 | case O_OPEN_DIR: |
a687059c LW |
2350 | if (stio->dirp) |
2351 | closedir(stio->dirp); | |
2352 | if (!(stio->dirp = opendir(str_get(st[sp+1])))) | |
2353 | goto nope; | |
2354 | break; | |
2355 | case O_READDIR: | |
2356 | if (gimme == G_ARRAY) { | |
2357 | --sp; | |
99b89507 | 2358 | /*SUPPRESS 560*/ |
a687059c LW |
2359 | while (dp = readdir(stio->dirp)) { |
2360 | #ifdef DIRNAMLEN | |
2361 | (void)astore(ary,++sp, | |
fe14fcc3 | 2362 | str_2mortal(str_make(dp->d_name,dp->d_namlen))); |
a687059c LW |
2363 | #else |
2364 | (void)astore(ary,++sp, | |
fe14fcc3 | 2365 | str_2mortal(str_make(dp->d_name,0))); |
a687059c LW |
2366 | #endif |
2367 | } | |
2368 | } | |
2369 | else { | |
2370 | if (!(dp = readdir(stio->dirp))) | |
2371 | goto nope; | |
fe14fcc3 | 2372 | st[sp] = str_mortal(&str_undef); |
a687059c LW |
2373 | #ifdef DIRNAMLEN |
2374 | str_nset(st[sp], dp->d_name, dp->d_namlen); | |
2375 | #else | |
2376 | str_set(st[sp], dp->d_name); | |
2377 | #endif | |
2378 | } | |
2379 | break; | |
bee1dbe2 LW |
2380 | #if defined(HAS_TELLDIR) || defined(telldir) |
2381 | case O_TELLDIR: { | |
2382 | #ifndef telldir | |
2383 | long telldir(); | |
2384 | #endif | |
2385 | st[sp] = str_mortal(&str_undef); | |
2386 | str_numset(st[sp], (double)telldir(stio->dirp)); | |
2387 | break; | |
2388 | } | |
2389 | #endif | |
2390 | #if defined(HAS_SEEKDIR) || defined(seekdir) | |
a687059c | 2391 | case O_SEEKDIR: |
fe14fcc3 | 2392 | st[sp] = str_mortal(&str_undef); |
a687059c LW |
2393 | along = (long)str_gnum(st[sp+1]); |
2394 | (void)seekdir(stio->dirp,along); | |
2395 | break; | |
ff8e2863 | 2396 | #endif |
bee1dbe2 | 2397 | #if defined(HAS_REWINDDIR) || defined(rewinddir) |
a687059c | 2398 | case O_REWINDDIR: |
fe14fcc3 | 2399 | st[sp] = str_mortal(&str_undef); |
a687059c LW |
2400 | (void)rewinddir(stio->dirp); |
2401 | break; | |
bee1dbe2 | 2402 | #endif |
a687059c | 2403 | case O_CLOSEDIR: |
fe14fcc3 | 2404 | st[sp] = str_mortal(&str_undef); |
a687059c LW |
2405 | (void)closedir(stio->dirp); |
2406 | stio->dirp = 0; | |
2407 | break; | |
bee1dbe2 LW |
2408 | default: |
2409 | goto phooey; | |
a687059c LW |
2410 | } |
2411 | return sp; | |
2412 | ||
2413 | nope: | |
2414 | st[sp] = &str_undef; | |
99b89507 LW |
2415 | if (!errno) |
2416 | errno = EBADF; | |
a687059c LW |
2417 | return sp; |
2418 | ||
a687059c | 2419 | #endif |
bee1dbe2 LW |
2420 | phooey: |
2421 | fatal("Unimplemented directory operation"); | |
a687059c LW |
2422 | } |
2423 | ||
bee1dbe2 | 2424 | int |
a687059c LW |
2425 | apply(type,arglast) |
2426 | int type; | |
2427 | int *arglast; | |
2428 | { | |
2429 | register STR **st = stack->ary_array; | |
2430 | register int sp = arglast[1]; | |
2431 | register int items = arglast[2] - sp; | |
2432 | register int val; | |
2433 | register int val2; | |
2434 | register int tot = 0; | |
2435 | char *s; | |
2436 | ||
2437 | #ifdef TAINT | |
2438 | for (st += ++sp; items--; st++) | |
2439 | tainted |= (*st)->str_tainted; | |
2440 | st = stack->ary_array; | |
2441 | sp = arglast[1]; | |
2442 | items = arglast[2] - sp; | |
2443 | #endif | |
2444 | switch (type) { | |
2445 | case O_CHMOD: | |
2446 | #ifdef TAINT | |
2447 | taintproper("Insecure dependency in chmod"); | |
2448 | #endif | |
2449 | if (--items > 0) { | |
2450 | tot = items; | |
2451 | val = (int)str_gnum(st[++sp]); | |
2452 | while (items--) { | |
2453 | if (chmod(str_get(st[++sp]),val)) | |
2454 | tot--; | |
2455 | } | |
2456 | } | |
2457 | break; | |
fe14fcc3 | 2458 | #ifdef HAS_CHOWN |
a687059c LW |
2459 | case O_CHOWN: |
2460 | #ifdef TAINT | |
2461 | taintproper("Insecure dependency in chown"); | |
2462 | #endif | |
2463 | if (items > 2) { | |
2464 | items -= 2; | |
2465 | tot = items; | |
2466 | val = (int)str_gnum(st[++sp]); | |
2467 | val2 = (int)str_gnum(st[++sp]); | |
2468 | while (items--) { | |
2469 | if (chown(str_get(st[++sp]),val,val2)) | |
2470 | tot--; | |
2471 | } | |
2472 | } | |
2473 | break; | |
b1248f16 | 2474 | #endif |
fe14fcc3 | 2475 | #ifdef HAS_KILL |
a687059c LW |
2476 | case O_KILL: |
2477 | #ifdef TAINT | |
2478 | taintproper("Insecure dependency in kill"); | |
2479 | #endif | |
2480 | if (--items > 0) { | |
2481 | tot = items; | |
2482 | s = str_get(st[++sp]); | |
99b89507 | 2483 | if (isUPPER(*s)) { |
a687059c LW |
2484 | if (*s == 'S' && s[1] == 'I' && s[2] == 'G') |
2485 | s += 3; | |
2486 | if (!(val = whichsig(s))) | |
2487 | fatal("Unrecognized signal name \"%s\"",s); | |
2488 | } | |
2489 | else | |
2490 | val = (int)str_gnum(st[sp]); | |
2491 | if (val < 0) { | |
2492 | val = -val; | |
2493 | while (items--) { | |
2494 | int proc = (int)str_gnum(st[++sp]); | |
fe14fcc3 | 2495 | #ifdef HAS_KILLPG |
a687059c LW |
2496 | if (killpg(proc,val)) /* BSD */ |
2497 | #else | |
2498 | if (kill(-proc,val)) /* SYSV */ | |
2499 | #endif | |
2500 | tot--; | |
2501 | } | |
2502 | } | |
2503 | else { | |
2504 | while (items--) { | |
2505 | if (kill((int)(str_gnum(st[++sp])),val)) | |
2506 | tot--; | |
2507 | } | |
2508 | } | |
2509 | } | |
2510 | break; | |
b1248f16 | 2511 | #endif |
a687059c LW |
2512 | case O_UNLINK: |
2513 | #ifdef TAINT | |
2514 | taintproper("Insecure dependency in unlink"); | |
2515 | #endif | |
2516 | tot = items; | |
2517 | while (items--) { | |
2518 | s = str_get(st[++sp]); | |
2519 | if (euid || unsafe) { | |
2520 | if (UNLINK(s)) | |
2521 | tot--; | |
2522 | } | |
2523 | else { /* don't let root wipe out directories without -U */ | |
fe14fcc3 | 2524 | #ifdef HAS_LSTAT |
c623bd54 | 2525 | if (lstat(s,&statbuf) < 0 || S_ISDIR(statbuf.st_mode)) |
a687059c | 2526 | #else |
c623bd54 | 2527 | if (stat(s,&statbuf) < 0 || S_ISDIR(statbuf.st_mode)) |
a687059c | 2528 | #endif |
a687059c LW |
2529 | tot--; |
2530 | else { | |
2531 | if (UNLINK(s)) | |
2532 | tot--; | |
2533 | } | |
2534 | } | |
2535 | } | |
2536 | break; | |
2537 | case O_UTIME: | |
2538 | #ifdef TAINT | |
2539 | taintproper("Insecure dependency in utime"); | |
2540 | #endif | |
2541 | if (items > 2) { | |
663a0e37 LW |
2542 | #ifdef I_UTIME |
2543 | struct utimbuf utbuf; | |
2544 | #else | |
a687059c | 2545 | struct { |
663a0e37 LW |
2546 | long actime; |
2547 | long modtime; | |
a687059c | 2548 | } utbuf; |
663a0e37 | 2549 | #endif |
a687059c | 2550 | |
afd9f252 | 2551 | Zero(&utbuf, sizeof utbuf, char); |
663a0e37 LW |
2552 | utbuf.actime = (long)str_gnum(st[++sp]); /* time accessed */ |
2553 | utbuf.modtime = (long)str_gnum(st[++sp]); /* time modified */ | |
a687059c LW |
2554 | items -= 2; |
2555 | #ifndef lint | |
2556 | tot = items; | |
2557 | while (items--) { | |
2558 | if (utime(str_get(st[++sp]),&utbuf)) | |
2559 | tot--; | |
2560 | } | |
2561 | #endif | |
2562 | } | |
2563 | else | |
2564 | items = 0; | |
2565 | break; | |
2566 | } | |
2567 | return tot; | |
2568 | } | |
2569 | ||
2570 | /* Do the permissions allow some operation? Assumes statcache already set. */ | |
2571 | ||
2572 | int | |
2573 | cando(bit, effective, statbufp) | |
2574 | int bit; | |
2575 | int effective; | |
2576 | register struct stat *statbufp; | |
2577 | { | |
bee1dbe2 | 2578 | #ifdef DOSISH |
fe14fcc3 LW |
2579 | /* [Comments and code from Len Reed] |
2580 | * MS-DOS "user" is similar to UNIX's "superuser," but can't write | |
2581 | * to write-protected files. The execute permission bit is set | |
2582 | * by the Miscrosoft C library stat() function for the following: | |
2583 | * .exe files | |
2584 | * .com files | |
2585 | * .bat files | |
2586 | * directories | |
2587 | * All files and directories are readable. | |
2588 | * Directories and special files, e.g. "CON", cannot be | |
2589 | * write-protected. | |
2590 | * [Comment by Tom Dinger -- a directory can have the write-protect | |
2591 | * bit set in the file system, but DOS permits changes to | |
2592 | * the directory anyway. In addition, all bets are off | |
2593 | * here for networked software, such as Novell and | |
2594 | * Sun's PC-NFS.] | |
2595 | */ | |
2596 | ||
bee1dbe2 LW |
2597 | /* Atari stat() does pretty much the same thing. we set x_bit_set_in_stat |
2598 | * too so it will actually look into the files for magic numbers | |
2599 | */ | |
fe14fcc3 LW |
2600 | return (bit & statbufp->st_mode) ? TRUE : FALSE; |
2601 | ||
2602 | #else /* ! MSDOS */ | |
a687059c | 2603 | if ((effective ? euid : uid) == 0) { /* root is special */ |
c623bd54 LW |
2604 | if (bit == S_IXUSR) { |
2605 | if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode)) | |
a687059c LW |
2606 | return TRUE; |
2607 | } | |
2608 | else | |
2609 | return TRUE; /* root reads and writes anything */ | |
2610 | return FALSE; | |
2611 | } | |
2612 | if (statbufp->st_uid == (effective ? euid : uid) ) { | |
2613 | if (statbufp->st_mode & bit) | |
2614 | return TRUE; /* ok as "user" */ | |
2615 | } | |
2616 | else if (ingroup((int)statbufp->st_gid,effective)) { | |
2617 | if (statbufp->st_mode & bit >> 3) | |
2618 | return TRUE; /* ok as "group" */ | |
2619 | } | |
2620 | else if (statbufp->st_mode & bit >> 6) | |
2621 | return TRUE; /* ok as "other" */ | |
2622 | return FALSE; | |
fe14fcc3 | 2623 | #endif /* ! MSDOS */ |
a687059c LW |
2624 | } |
2625 | ||
2626 | int | |
2627 | ingroup(testgid,effective) | |
2628 | int testgid; | |
2629 | int effective; | |
2630 | { | |
2631 | if (testgid == (effective ? egid : gid)) | |
2632 | return TRUE; | |
fe14fcc3 | 2633 | #ifdef HAS_GETGROUPS |
a687059c LW |
2634 | #ifndef NGROUPS |
2635 | #define NGROUPS 32 | |
2636 | #endif | |
2637 | { | |
1c3d792e | 2638 | GROUPSTYPE gary[NGROUPS]; |
a687059c LW |
2639 | int anum; |
2640 | ||
2641 | anum = getgroups(NGROUPS,gary); | |
2642 | while (--anum >= 0) | |
2643 | if (gary[anum] == testgid) | |
2644 | return TRUE; | |
2645 | } | |
2646 | #endif | |
2647 | return FALSE; | |
2648 | } | |
c2ab57d4 | 2649 | |
fe14fcc3 | 2650 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
c2ab57d4 LW |
2651 | |
2652 | int | |
2653 | do_ipcget(optype, arglast) | |
2654 | int optype; | |
2655 | int *arglast; | |
2656 | { | |
2657 | register STR **st = stack->ary_array; | |
2658 | register int sp = arglast[0]; | |
2659 | key_t key; | |
2660 | int n, flags; | |
2661 | ||
2662 | key = (key_t)str_gnum(st[++sp]); | |
2663 | n = (optype == O_MSGGET) ? 0 : (int)str_gnum(st[++sp]); | |
2664 | flags = (int)str_gnum(st[++sp]); | |
2665 | errno = 0; | |
2666 | switch (optype) | |
2667 | { | |
fe14fcc3 | 2668 | #ifdef HAS_MSG |
c2ab57d4 LW |
2669 | case O_MSGGET: |
2670 | return msgget(key, flags); | |
e5d73d77 | 2671 | #endif |
fe14fcc3 | 2672 | #ifdef HAS_SEM |
c2ab57d4 LW |
2673 | case O_SEMGET: |
2674 | return semget(key, n, flags); | |
e5d73d77 | 2675 | #endif |
fe14fcc3 | 2676 | #ifdef HAS_SHM |
c2ab57d4 LW |
2677 | case O_SHMGET: |
2678 | return shmget(key, n, flags); | |
e5d73d77 | 2679 | #endif |
fe14fcc3 | 2680 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 LW |
2681 | default: |
2682 | fatal("%s not implemented", opname[optype]); | |
2683 | #endif | |
c2ab57d4 LW |
2684 | } |
2685 | return -1; /* should never happen */ | |
2686 | } | |
2687 | ||
2688 | int | |
2689 | do_ipcctl(optype, arglast) | |
2690 | int optype; | |
2691 | int *arglast; | |
2692 | { | |
2693 | register STR **st = stack->ary_array; | |
2694 | register int sp = arglast[0]; | |
2695 | STR *astr; | |
2696 | char *a; | |
2697 | int id, n, cmd, infosize, getinfo, ret; | |
2698 | ||
2699 | id = (int)str_gnum(st[++sp]); | |
2700 | n = (optype == O_SEMCTL) ? (int)str_gnum(st[++sp]) : 0; | |
2701 | cmd = (int)str_gnum(st[++sp]); | |
2702 | astr = st[++sp]; | |
2703 | ||
2704 | infosize = 0; | |
2705 | getinfo = (cmd == IPC_STAT); | |
2706 | ||
2707 | switch (optype) | |
2708 | { | |
fe14fcc3 | 2709 | #ifdef HAS_MSG |
c2ab57d4 LW |
2710 | case O_MSGCTL: |
2711 | if (cmd == IPC_STAT || cmd == IPC_SET) | |
2712 | infosize = sizeof(struct msqid_ds); | |
2713 | break; | |
e5d73d77 | 2714 | #endif |
fe14fcc3 | 2715 | #ifdef HAS_SHM |
c2ab57d4 LW |
2716 | case O_SHMCTL: |
2717 | if (cmd == IPC_STAT || cmd == IPC_SET) | |
2718 | infosize = sizeof(struct shmid_ds); | |
2719 | break; | |
e5d73d77 | 2720 | #endif |
fe14fcc3 | 2721 | #ifdef HAS_SEM |
c2ab57d4 LW |
2722 | case O_SEMCTL: |
2723 | if (cmd == IPC_STAT || cmd == IPC_SET) | |
2724 | infosize = sizeof(struct semid_ds); | |
2725 | else if (cmd == GETALL || cmd == SETALL) | |
2726 | { | |
2727 | struct semid_ds semds; | |
2728 | if (semctl(id, 0, IPC_STAT, &semds) == -1) | |
2729 | return -1; | |
2730 | getinfo = (cmd == GETALL); | |
6e21c824 LW |
2731 | infosize = semds.sem_nsems * sizeof(short); |
2732 | /* "short" is technically wrong but much more portable | |
2733 | than guessing about u_?short(_t)? */ | |
c2ab57d4 LW |
2734 | } |
2735 | break; | |
e5d73d77 | 2736 | #endif |
fe14fcc3 | 2737 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 LW |
2738 | default: |
2739 | fatal("%s not implemented", opname[optype]); | |
2740 | #endif | |
c2ab57d4 LW |
2741 | } |
2742 | ||
2743 | if (infosize) | |
2744 | { | |
2745 | if (getinfo) | |
2746 | { | |
2747 | STR_GROW(astr, infosize+1); | |
2748 | a = str_get(astr); | |
2749 | } | |
2750 | else | |
2751 | { | |
2752 | a = str_get(astr); | |
2753 | if (astr->str_cur != infosize) | |
2754 | { | |
2755 | errno = EINVAL; | |
2756 | return -1; | |
2757 | } | |
2758 | } | |
2759 | } | |
2760 | else | |
2761 | { | |
2762 | int i = (int)str_gnum(astr); | |
2763 | a = (char *)i; /* ouch */ | |
2764 | } | |
2765 | errno = 0; | |
2766 | switch (optype) | |
2767 | { | |
fe14fcc3 | 2768 | #ifdef HAS_MSG |
c2ab57d4 | 2769 | case O_MSGCTL: |
bee1dbe2 | 2770 | ret = msgctl(id, cmd, (struct msqid_ds *)a); |
c2ab57d4 | 2771 | break; |
e5d73d77 | 2772 | #endif |
fe14fcc3 | 2773 | #ifdef HAS_SEM |
c2ab57d4 LW |
2774 | case O_SEMCTL: |
2775 | ret = semctl(id, n, cmd, a); | |
2776 | break; | |
e5d73d77 | 2777 | #endif |
fe14fcc3 | 2778 | #ifdef HAS_SHM |
c2ab57d4 | 2779 | case O_SHMCTL: |
bee1dbe2 | 2780 | ret = shmctl(id, cmd, (struct shmid_ds *)a); |
c2ab57d4 | 2781 | break; |
e5d73d77 | 2782 | #endif |
c2ab57d4 LW |
2783 | } |
2784 | if (getinfo && ret >= 0) { | |
2785 | astr->str_cur = infosize; | |
2786 | astr->str_ptr[infosize] = '\0'; | |
2787 | } | |
2788 | return ret; | |
2789 | } | |
2790 | ||
2791 | int | |
2792 | do_msgsnd(arglast) | |
2793 | int *arglast; | |
2794 | { | |
fe14fcc3 | 2795 | #ifdef HAS_MSG |
c2ab57d4 LW |
2796 | register STR **st = stack->ary_array; |
2797 | register int sp = arglast[0]; | |
2798 | STR *mstr; | |
2799 | char *mbuf; | |
2800 | int id, msize, flags; | |
2801 | ||
2802 | id = (int)str_gnum(st[++sp]); | |
2803 | mstr = st[++sp]; | |
2804 | flags = (int)str_gnum(st[++sp]); | |
2805 | mbuf = str_get(mstr); | |
2806 | if ((msize = mstr->str_cur - sizeof(long)) < 0) { | |
2807 | errno = EINVAL; | |
2808 | return -1; | |
2809 | } | |
2810 | errno = 0; | |
bee1dbe2 | 2811 | return msgsnd(id, (struct msgbuf *)mbuf, msize, flags); |
e5d73d77 LW |
2812 | #else |
2813 | fatal("msgsnd not implemented"); | |
2814 | #endif | |
c2ab57d4 LW |
2815 | } |
2816 | ||
2817 | int | |
2818 | do_msgrcv(arglast) | |
2819 | int *arglast; | |
2820 | { | |
fe14fcc3 | 2821 | #ifdef HAS_MSG |
c2ab57d4 LW |
2822 | register STR **st = stack->ary_array; |
2823 | register int sp = arglast[0]; | |
2824 | STR *mstr; | |
2825 | char *mbuf; | |
2826 | long mtype; | |
2827 | int id, msize, flags, ret; | |
2828 | ||
2829 | id = (int)str_gnum(st[++sp]); | |
2830 | mstr = st[++sp]; | |
2831 | msize = (int)str_gnum(st[++sp]); | |
2832 | mtype = (long)str_gnum(st[++sp]); | |
2833 | flags = (int)str_gnum(st[++sp]); | |
2834 | mbuf = str_get(mstr); | |
2835 | if (mstr->str_cur < sizeof(long)+msize+1) { | |
2836 | STR_GROW(mstr, sizeof(long)+msize+1); | |
2837 | mbuf = str_get(mstr); | |
2838 | } | |
2839 | errno = 0; | |
bee1dbe2 | 2840 | ret = msgrcv(id, (struct msgbuf *)mbuf, msize, mtype, flags); |
c2ab57d4 LW |
2841 | if (ret >= 0) { |
2842 | mstr->str_cur = sizeof(long)+ret; | |
2843 | mstr->str_ptr[sizeof(long)+ret] = '\0'; | |
2844 | } | |
2845 | return ret; | |
e5d73d77 LW |
2846 | #else |
2847 | fatal("msgrcv not implemented"); | |
2848 | #endif | |
c2ab57d4 LW |
2849 | } |
2850 | ||
2851 | int | |
2852 | do_semop(arglast) | |
2853 | int *arglast; | |
2854 | { | |
fe14fcc3 | 2855 | #ifdef HAS_SEM |
c2ab57d4 LW |
2856 | register STR **st = stack->ary_array; |
2857 | register int sp = arglast[0]; | |
2858 | STR *opstr; | |
2859 | char *opbuf; | |
2860 | int id, opsize; | |
2861 | ||
2862 | id = (int)str_gnum(st[++sp]); | |
2863 | opstr = st[++sp]; | |
2864 | opbuf = str_get(opstr); | |
2865 | opsize = opstr->str_cur; | |
2866 | if (opsize < sizeof(struct sembuf) | |
2867 | || (opsize % sizeof(struct sembuf)) != 0) { | |
2868 | errno = EINVAL; | |
2869 | return -1; | |
2870 | } | |
2871 | errno = 0; | |
6e21c824 | 2872 | return semop(id, (struct sembuf *)opbuf, opsize/sizeof(struct sembuf)); |
e5d73d77 LW |
2873 | #else |
2874 | fatal("semop not implemented"); | |
2875 | #endif | |
c2ab57d4 LW |
2876 | } |
2877 | ||
2878 | int | |
2879 | do_shmio(optype, arglast) | |
2880 | int optype; | |
2881 | int *arglast; | |
2882 | { | |
fe14fcc3 | 2883 | #ifdef HAS_SHM |
c2ab57d4 LW |
2884 | register STR **st = stack->ary_array; |
2885 | register int sp = arglast[0]; | |
2886 | STR *mstr; | |
2887 | char *mbuf, *shm; | |
2888 | int id, mpos, msize; | |
2889 | struct shmid_ds shmds; | |
6e21c824 | 2890 | #ifndef VOIDSHMAT |
c2ab57d4 | 2891 | extern char *shmat(); |
6e21c824 | 2892 | #endif |
c2ab57d4 LW |
2893 | |
2894 | id = (int)str_gnum(st[++sp]); | |
2895 | mstr = st[++sp]; | |
2896 | mpos = (int)str_gnum(st[++sp]); | |
2897 | msize = (int)str_gnum(st[++sp]); | |
2898 | errno = 0; | |
2899 | if (shmctl(id, IPC_STAT, &shmds) == -1) | |
2900 | return -1; | |
2901 | if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) { | |
2902 | errno = EFAULT; /* can't do as caller requested */ | |
2903 | return -1; | |
2904 | } | |
6e21c824 | 2905 | shm = (char*)shmat(id, (char*)NULL, (optype == O_SHMREAD) ? SHM_RDONLY : 0); |
c2ab57d4 LW |
2906 | if (shm == (char *)-1) /* I hate System V IPC, I really do */ |
2907 | return -1; | |
2908 | mbuf = str_get(mstr); | |
2909 | if (optype == O_SHMREAD) { | |
2910 | if (mstr->str_cur < msize) { | |
2911 | STR_GROW(mstr, msize+1); | |
2912 | mbuf = str_get(mstr); | |
2913 | } | |
bee1dbe2 | 2914 | Copy(shm + mpos, mbuf, msize, char); |
c2ab57d4 LW |
2915 | mstr->str_cur = msize; |
2916 | mstr->str_ptr[msize] = '\0'; | |
2917 | } | |
2918 | else { | |
2919 | int n; | |
2920 | ||
2921 | if ((n = mstr->str_cur) > msize) | |
2922 | n = msize; | |
bee1dbe2 | 2923 | Copy(mbuf, shm + mpos, n, char); |
c2ab57d4 | 2924 | if (n < msize) |
bee1dbe2 | 2925 | memzero(shm + mpos + n, msize - n); |
c2ab57d4 LW |
2926 | } |
2927 | return shmdt(shm); | |
e5d73d77 LW |
2928 | #else |
2929 | fatal("shm I/O not implemented"); | |
2930 | #endif | |
c2ab57d4 LW |
2931 | } |
2932 | ||
fe14fcc3 | 2933 | #endif /* SYSV IPC */ |