at(1): Print datetime upon job submission as POSIX mandates.
[dragonfly.git] / usr.bin / at / at.c
CommitLineData
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1/*
2 * at.c : Put file into atrun queue
3 * Copyright (C) 1993, 1994 Thomas Koenig
4 *
5 * Atrun & Atq modifications
6 * Copyright (C) 1993 David Parsons
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. The name of the author(s) may not be used to endorse or promote
14 * products derived from this software without specific prior written
15 * permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1de703da 27 *
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28 * $FreeBSD: src/usr.bin/at/at.c,v 1.30 2007/09/21 01:55:11 kevlo Exp $
29 * $DragonFly: src/usr.bin/at/at.c,v 1.9 2007/09/22 20:22:51 pavalos Exp $
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30 */
31
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32#define _USE_BSD 1
33
34/* System Headers */
35
e3a4c51f 36#include <sys/param.h>
984263bc 37#include <sys/stat.h>
e3a4c51f 38#include <sys/time.h>
984263bc 39#include <sys/wait.h>
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40#include <ctype.h>
41#include <dirent.h>
42#include <err.h>
43#include <errno.h>
44#include <fcntl.h>
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PA
45#include <langinfo.h>
46#include <locale.h>
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47#include <pwd.h>
48#include <signal.h>
49#include <stddef.h>
50#include <stdio.h>
51#include <stdlib.h>
52#include <string.h>
53#include <time.h>
54#include <unistd.h>
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55
56/* Local headers */
57
58#include "at.h"
59#include "panic.h"
60#include "parsetime.h"
61#include "perm.h"
62
63#define MAIN
64#include "privs.h"
65
66/* Macros */
67
68#ifndef ATJOB_DIR
69#define ATJOB_DIR "/usr/spool/atjobs/"
70#endif
71
72#ifndef LFILE
73#define LFILE ATJOB_DIR ".lockfile"
74#endif
75
76#ifndef ATJOB_MX
77#define ATJOB_MX 255
78#endif
79
80#define ALARMC 10 /* Number of seconds to wait for timeout */
81
82#define SIZE 255
83#define TIMESIZE 50
84
85enum { ATQ, ATRM, AT, BATCH, CAT }; /* what program we want to run */
86
87/* File scope variables */
88
eed06283 89const char *no_export[] =
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90{
91 "TERM", "TERMCAP", "DISPLAY", "_"
92} ;
93static int send_mail = 0;
94
95/* External variables */
eed06283
JS
96uid_t real_uid, effective_uid;
97gid_t real_gid, effective_gid;
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98
99extern char **environ;
100int fcreated;
eed06283 101char atfile[sizeof(ATJOB_DIR) + 14] = ATJOB_DIR;
984263bc 102
eed06283 103char *atinput = NULL; /* where to get input from */
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104char atqueue = 0; /* which queue to examine for jobs (atq) */
105char atverify = 0; /* verify time instead of queuing job */
e3a4c51f 106char *namep;
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107
108/* Function declarations */
109
110static void sigc(int signo);
111static void alarmc(int signo);
112static char *cwdname(void);
113static void writefile(time_t runtimer, char queue);
e3a4c51f
PA
114static void list_jobs(long *, int);
115static long nextjob(void);
116static time_t ttime(const char *arg);
ae2e8c20 117static char * timer2str(time_t runtimer);
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PA
118static int in_job_list(long, long *, int);
119static long *get_job_list(int, char *[], int *);
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120
121/* Signal catching functions */
122
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PA
123static void
124sigc(int signo __unused)
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125{
126/* If the user presses ^C, remove the spool file and exit
127 */
128 if (fcreated)
129 {
130 PRIV_START
131 unlink(atfile);
132 PRIV_END
133 }
134
e3a4c51f 135 _exit(EXIT_FAILURE);
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136}
137
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PA
138static void
139alarmc(int signo __unused)
984263bc 140{
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PA
141 char buf[1024];
142
143 /* Time out after some seconds. */
144 strlcpy(buf, namep, sizeof(buf));
145 strlcat(buf, ": file locking timed out\n", sizeof(buf));
146 write(STDERR_FILENO, buf, strlen(buf));
147 sigc(0);
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148}
149
150/* Local functions */
151
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PA
152static char *
153cwdname(void)
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154{
155/* Read in the current directory; the name will be overwritten on
156 * subsequent calls.
157 */
158 static char *ptr = NULL;
159 static size_t size = SIZE;
160
161 if (ptr == NULL)
162 if ((ptr = malloc(size)) == NULL)
163 errx(EXIT_FAILURE, "virtual memory exhausted");
164
165 while (1)
166 {
167 if (ptr == NULL)
168 panic("out of memory");
169
170 if (getcwd(ptr, size-1) != NULL)
171 return ptr;
172
173 if (errno != ERANGE)
174 perr("cannot get directory");
175
176 free (ptr);
177 size += SIZE;
178 if ((ptr = malloc(size)) == NULL)
179 errx(EXIT_FAILURE, "virtual memory exhausted");
180 }
181}
182
183static long
eed06283 184nextjob(void)
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185{
186 long jobno;
187 FILE *fid;
188
b8f119b3 189 if ((fid = fopen(ATJOB_DIR ".SEQ", "r+")) != NULL) {
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190 if (fscanf(fid, "%5lx", &jobno) == 1) {
191 rewind(fid);
192 jobno = (1+jobno) % 0xfffff; /* 2^20 jobs enough? */
193 fprintf(fid, "%05lx\n", jobno);
194 }
195 else
196 jobno = EOF;
197 fclose(fid);
198 return jobno;
199 }
b8f119b3 200 else if ((fid = fopen(ATJOB_DIR ".SEQ", "w")) != NULL) {
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MD
201 fprintf(fid, "%05lx\n", jobno = 1);
202 fclose(fid);
203 return 1;
204 }
205 return EOF;
206}
207
208static void
209writefile(time_t runtimer, char queue)
210{
211/* This does most of the work if at or batch are invoked for writing a job.
212 */
213 long jobno;
214 char *ap, *ppos, *mailname;
215 struct passwd *pass_entry;
216 struct stat statbuf;
217 int fdes, lockdes, fd2;
218 FILE *fp, *fpin;
219 struct sigaction act;
220 char **atenv;
221 int ch;
222 mode_t cmask;
223 struct flock lock;
224
eed06283 225 setlocale(LC_TIME, "");
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226
227/* Install the signal handler for SIGINT; terminate after removing the
228 * spool file if necessary
229 */
230 act.sa_handler = sigc;
231 sigemptyset(&(act.sa_mask));
232 act.sa_flags = 0;
233
234 sigaction(SIGINT, &act, NULL);
235
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236 /* Loop over all possible file names for running something at this
237 * particular time, see if a file is there; the first empty slot at any
238 * particular time is used. Lock the file LFILE first to make sure
239 * we're alone when doing this.
240 */
241
242 PRIV_START
243
244 if ((lockdes = open(LFILE, O_WRONLY | O_CREAT, S_IWUSR | S_IRUSR)) < 0)
245 perr("cannot open lockfile " LFILE);
246
247 lock.l_type = F_WRLCK; lock.l_whence = SEEK_SET; lock.l_start = 0;
248 lock.l_len = 0;
249
250 act.sa_handler = alarmc;
251 sigemptyset(&(act.sa_mask));
252 act.sa_flags = 0;
253
254 /* Set an alarm so a timeout occurs after ALARMC seconds, in case
255 * something is seriously broken.
256 */
257 sigaction(SIGALRM, &act, NULL);
258 alarm(ALARMC);
259 fcntl(lockdes, F_SETLKW, &lock);
260 alarm(0);
261
262 if ((jobno = nextjob()) == EOF)
263 perr("cannot generate job number");
264
eed06283
JS
265 ppos = atfile + strlen(atfile);
266 snprintf(ppos, sizeof(atfile) - strlen(atfile), "%c%5lx%8lx", queue,
267 jobno, (unsigned long) (runtimer/60));
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268
269 for(ap=ppos; *ap != '\0'; ap ++)
270 if (*ap == ' ')
271 *ap = '0';
272
273 if (stat(atfile, &statbuf) != 0)
274 if (errno != ENOENT)
275 perr("cannot access " ATJOB_DIR);
276
277 /* Create the file. The x bit is only going to be set after it has
278 * been completely written out, to make sure it is not executed in the
279 * meantime. To make sure they do not get deleted, turn off their r
280 * bit. Yes, this is a kluge.
281 */
282 cmask = umask(S_IRUSR | S_IWUSR | S_IXUSR);
283 if ((fdes = creat(atfile, O_WRONLY)) == -1)
284 perr("cannot create atjob file");
285
286 if ((fd2 = dup(fdes)) <0)
287 perr("error in dup() of job file");
288
289 if(fchown(fd2, real_uid, real_gid) != 0)
290 perr("cannot give away file");
291
292 PRIV_END
293
294 /* We no longer need suid root; now we just need to be able to write
295 * to the directory, if necessary.
296 */
297
298 REDUCE_PRIV(DAEMON_UID, DAEMON_GID)
299
300 /* We've successfully created the file; let's set the flag so it
301 * gets removed in case of an interrupt or error.
302 */
303 fcreated = 1;
304
305 /* Now we can release the lock, so other people can access it
306 */
307 lock.l_type = F_UNLCK; lock.l_whence = SEEK_SET; lock.l_start = 0;
308 lock.l_len = 0;
309 fcntl(lockdes, F_SETLKW, &lock);
310 close(lockdes);
311
312 if((fp = fdopen(fdes, "w")) == NULL)
313 panic("cannot reopen atjob file");
314
e3a4c51f
PA
315 /* Get the userid to mail to, first by trying getlogin(),
316 * then from LOGNAME, finally from getpwuid().
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MD
317 */
318 mailname = getlogin();
319 if (mailname == NULL)
320 mailname = getenv("LOGNAME");
321
322 if ((mailname == NULL) || (mailname[0] == '\0')
e3a4c51f 323 || (strlen(mailname) >= MAXLOGNAME) || (getpwnam(mailname)==NULL))
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MD
324 {
325 pass_entry = getpwuid(real_uid);
326 if (pass_entry != NULL)
327 mailname = pass_entry->pw_name;
328 }
329
2038fb68 330 if (atinput != NULL)
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MD
331 {
332 fpin = freopen(atinput, "r", stdin);
333 if (fpin == NULL)
334 perr("cannot open input file");
335 }
336 fprintf(fp, "#!/bin/sh\n# atrun uid=%ld gid=%ld\n# mail %*s %d\n",
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PA
337 (long) real_uid, (long) real_gid, MAXLOGNAME - 1, mailname,
338 send_mail);
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MD
339
340 /* Write out the umask at the time of invocation
341 */
342 fprintf(fp, "umask %lo\n", (unsigned long) cmask);
343
344 /* Write out the environment. Anything that may look like a
345 * special character to the shell is quoted, except for \n, which is
346 * done with a pair of "'s. Don't export the no_export list (such
347 * as TERM or DISPLAY) because we don't want these.
348 */
349 for (atenv= environ; *atenv != NULL; atenv++)
350 {
351 int export = 1;
352 char *eqp;
353
354 eqp = strchr(*atenv, '=');
355 if (ap == NULL)
356 eqp = *atenv;
357 else
358 {
e3a4c51f 359 size_t i;
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MD
360 for (i=0; i<sizeof(no_export)/sizeof(no_export[0]); i++)
361 {
362 export = export
363 && (strncmp(*atenv, no_export[i],
364 (size_t) (eqp-*atenv)) != 0);
365 }
366 eqp++;
367 }
368
369 if (export)
370 {
371 fwrite(*atenv, sizeof(char), eqp-*atenv, fp);
372 for(ap = eqp;*ap != '\0'; ap++)
373 {
374 if (*ap == '\n')
375 fprintf(fp, "\"\n\"");
376 else
377 {
378 if (!isalnum(*ap)) {
379 switch (*ap) {
380 case '%': case '/': case '{': case '[':
381 case ']': case '=': case '}': case '@':
382 case '+': case '#': case ',': case '.':
383 case ':': case '-': case '_':
384 break;
385 default:
386 fputc('\\', fp);
387 break;
388 }
389 }
390 fputc(*ap, fp);
391 }
392 }
393 fputs("; export ", fp);
394 fwrite(*atenv, sizeof(char), eqp-*atenv -1, fp);
395 fputc('\n', fp);
396
397 }
398 }
399 /* Cd to the directory at the time and write out all the
400 * commands the user supplies from stdin.
401 */
402 fprintf(fp, "cd ");
403 for (ap = cwdname(); *ap != '\0'; ap++)
404 {
405 if (*ap == '\n')
406 fprintf(fp, "\"\n\"");
407 else
408 {
409 if (*ap != '/' && !isalnum(*ap))
410 fputc('\\', fp);
411
412 fputc(*ap, fp);
413 }
414 }
415 /* Test cd's exit status: die if the original directory has been
416 * removed, become unreadable or whatever
417 */
418 fprintf(fp, " || {\n\t echo 'Execution directory "
419 "inaccessible' >&2\n\t exit 1\n}\n");
420
421 while((ch = getchar()) != EOF)
422 fputc(ch, fp);
423
424 fprintf(fp, "\n");
425 if (ferror(fp))
426 panic("output error");
427
428 if (ferror(stdin))
429 panic("input error");
430
431 fclose(fp);
432
433 /* Set the x bit so that we're ready to start executing
434 */
435
436 if (fchmod(fd2, S_IRUSR | S_IWUSR | S_IXUSR) < 0)
437 perr("cannot give away file");
438
439 close(fd2);
ae2e8c20
SK
440
441 /* Print output. */
442 char *timestr = timer2str(runtimer);
443
984263bc 444 fprintf(stderr, "Job %ld will be executed using /bin/sh\n", jobno);
ae2e8c20
SK
445 fprintf(stderr, "Job %ld at %s\n", jobno, timestr);
446 free(timestr);
984263bc
MD
447}
448
e3a4c51f
PA
449static int
450in_job_list(long job, long *joblist, int len)
451{
452 int i;
453
454 for (i = 0; i < len; i++)
455 if (job == joblist[i])
456 return 1;
457
458 return 0;
459}
460
984263bc 461static void
e3a4c51f 462list_jobs(long *joblist, int len)
984263bc
MD
463{
464 /* List all a user's jobs in the queue, by looping through ATJOB_DIR,
465 * or everybody's if we are root
466 */
467 struct passwd *pw;
468 DIR *spool;
469 struct dirent *dirent;
470 struct stat buf;
984263bc
MD
471 unsigned long ctm;
472 char queue;
473 long jobno;
474 time_t runtimer;
ae2e8c20 475 char *timestr;
984263bc
MD
476 int first=1;
477
eed06283 478 setlocale(LC_TIME, "");
984263bc
MD
479
480 PRIV_START
481
482 if (chdir(ATJOB_DIR) != 0)
483 perr("cannot change to " ATJOB_DIR);
484
485 if ((spool = opendir(".")) == NULL)
486 perr("cannot open " ATJOB_DIR);
487
488 /* Loop over every file in the directory
489 */
490 while((dirent = readdir(spool)) != NULL) {
491 if (stat(dirent->d_name, &buf) != 0)
492 perr("cannot stat in " ATJOB_DIR);
493
494 /* See it's a regular file and has its x bit turned on and
495 * is the user's
496 */
497 if (!S_ISREG(buf.st_mode)
498 || ((buf.st_uid != real_uid) && ! (real_uid == 0))
499 || !(S_IXUSR & buf.st_mode || atverify))
500 continue;
501
502 if(sscanf(dirent->d_name, "%c%5lx%8lx", &queue, &jobno, &ctm)!=3)
503 continue;
504
e3a4c51f
PA
505 /* If jobs are given, only list those jobs */
506 if (joblist && !in_job_list(jobno, joblist, len))
507 continue;
508
984263bc
MD
509 if (atqueue && (queue != atqueue))
510 continue;
511
ae2e8c20
SK
512 /* Get datetime */
513 runtimer = 60*(time_t) ctm;
514 timestr = timer2str(runtimer);
515
516 /* Look up owner's uid in password database file */
984263bc
MD
517 pw = getpwuid(buf.st_uid);
518
ae2e8c20
SK
519 if (first) {
520 printf("Date\t\t\t\tOwner\t\tQueue\tJob#\n");
521 first=0;
522 }
e3a4c51f 523 printf("%s\t%-16s%c%s\t%ld\n",
984263bc
MD
524 timestr,
525 pw ? pw->pw_name : "???",
526 queue,
527 (S_IXUSR & buf.st_mode) ? "":"(done)",
528 jobno);
ae2e8c20 529 free(timestr);
984263bc 530 }
d8335585
SW
531 closedir(spool);
532
984263bc
MD
533 PRIV_END
534}
535
536static void
537process_jobs(int argc, char **argv, int what)
538{
539 /* Delete every argument (job - ID) given
540 */
541 int i;
542 struct stat buf;
543 DIR *spool;
544 struct dirent *dirent;
545 unsigned long ctm;
546 char queue;
547 long jobno;
548
549 PRIV_START
550
551 if (chdir(ATJOB_DIR) != 0)
552 perr("cannot change to " ATJOB_DIR);
553
554 if ((spool = opendir(".")) == NULL)
555 perr("cannot open " ATJOB_DIR);
556
557 PRIV_END
558
559 /* Loop over every file in the directory
560 */
561 while((dirent = readdir(spool)) != NULL) {
562
563 PRIV_START
564 if (stat(dirent->d_name, &buf) != 0)
565 perr("cannot stat in " ATJOB_DIR);
566 PRIV_END
567
568 if(sscanf(dirent->d_name, "%c%5lx%8lx", &queue, &jobno, &ctm)!=3)
569 continue;
570
571 for (i=optind; i < argc; i++) {
572 if (atoi(argv[i]) == jobno) {
573 if ((buf.st_uid != real_uid) && !(real_uid == 0))
574 errx(EXIT_FAILURE, "%s: not owner", argv[i]);
575 switch (what) {
576 case ATRM:
577
578 PRIV_START
579
580 if (unlink(dirent->d_name) != 0)
581 perr(dirent->d_name);
582
583 PRIV_END
584
585 break;
586
587 case CAT:
588 {
589 FILE *fp;
590 int ch;
591
592 PRIV_START
593
594 fp = fopen(dirent->d_name,"r");
595
596 PRIV_END
597
598 if (!fp) {
599 perr("cannot open file");
600 }
601 while((ch = getc(fp)) != EOF) {
602 putchar(ch);
603 }
d8335585 604 fclose(fp);
984263bc
MD
605 }
606 break;
607
608 default:
609 errx(EXIT_FAILURE, "internal error, process_jobs = %d",
610 what);
611 }
612 }
613 }
614 }
d8335585 615 closedir(spool);
984263bc
MD
616} /* delete_jobs */
617
e3a4c51f
PA
618#define ATOI2(ar) ((ar)[0] - '0') * 10 + ((ar)[1] - '0'); (ar) += 2;
619
620static time_t
621ttime(const char *arg)
622{
623 /*
624 * This is pretty much a copy of stime_arg1() from touch.c. I changed
625 * the return value and the argument list because it's more convenient
626 * (IMO) to do everything in one place. - Joe Halpin
627 */
628 struct timeval tv[2];
629 time_t now;
630 struct tm *t;
631 int yearset;
632 char *p;
633
634 if (gettimeofday(&tv[0], NULL))
635 panic("Cannot get current time");
636
637 /* Start with the current time. */
638 now = tv[0].tv_sec;
639 if ((t = localtime(&now)) == NULL)
640 panic("localtime");
641 /* [[CC]YY]MMDDhhmm[.SS] */
642 if ((p = strchr(arg, '.')) == NULL)
643 t->tm_sec = 0; /* Seconds defaults to 0. */
644 else {
645 if (strlen(p + 1) != 2)
646 goto terr;
647 *p++ = '\0';
648 t->tm_sec = ATOI2(p);
649 }
650
651 yearset = 0;
652 switch(strlen(arg)) {
653 case 12: /* CCYYMMDDhhmm */
654 t->tm_year = ATOI2(arg);
655 t->tm_year *= 100;
656 yearset = 1;
657 /* FALLTHROUGH */
658 case 10: /* YYMMDDhhmm */
659 if (yearset) {
660 yearset = ATOI2(arg);
661 t->tm_year += yearset;
662 } else {
663 yearset = ATOI2(arg);
664 t->tm_year = yearset + 2000;
665 }
666 t->tm_year -= 1900; /* Convert to UNIX time. */
667 /* FALLTHROUGH */
668 case 8: /* MMDDhhmm */
669 t->tm_mon = ATOI2(arg);
670 --t->tm_mon; /* Convert from 01-12 to 00-11 */
671 t->tm_mday = ATOI2(arg);
672 t->tm_hour = ATOI2(arg);
673 t->tm_min = ATOI2(arg);
674 break;
675 default:
676 goto terr;
677 }
678
679 t->tm_isdst = -1; /* Figure out DST. */
680 tv[0].tv_sec = tv[1].tv_sec = mktime(t);
681 if (tv[0].tv_sec != -1)
682 return tv[0].tv_sec;
683 else
684terr:
685 panic(
686 "out of range or illegal time specification: [[CC]YY]MMDDhhmm[.SS]");
687}
688
ae2e8c20
SK
689/* The caller must free up the memory. */
690static char *
691timer2str(time_t runtimer)
692{
693 struct tm runtime;
694 char *timestr;
695 size_t rv;
696
697 timestr = malloc(TIMESIZE);
698 if (timestr == NULL)
699 panic("out of memory");
700
701 runtime = *localtime(&runtimer);
702 rv = strftime(timestr, TIMESIZE, nl_langinfo(D_T_FMT), &runtime);
703 if (rv == 0)
704 panic("TIMESIZE too low");
705
706 return (timestr);
707}
708
e3a4c51f
PA
709static long *
710get_job_list(int argc, char *argv[], int *joblen)
711{
712 int i, len;
713 long *joblist;
714 char *ep;
715
716 joblist = NULL;
717 len = argc;
718 if (len > 0) {
719 if ((joblist = malloc(len * sizeof(*joblist))) == NULL)
720 panic("out of memory");
721
722 for (i = 0; i < argc; i++) {
723 errno = 0;
724 if ((joblist[i] = strtol(argv[i], &ep, 10)) < 0 ||
725 ep == argv[i] || *ep != '\0' || errno)
726 panic("invalid job number");
727 }
728 }
729
730 *joblen = len;
731 return joblist;
732}
733
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734int
735main(int argc, char **argv)
736{
737 int c;
738 char queue = DEFAULT_AT_QUEUE;
739 char queue_set = 0;
740 char *pgm;
741
984263bc 742 int program = AT; /* our default program */
e3a4c51f 743 const char *options = "q:f:t:rmvldbc"; /* default options for at */
984263bc 744 time_t timer;
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745 long *joblist;
746 int joblen;
984263bc 747
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748 joblist = NULL;
749 joblen = 0;
750 timer = -1;
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751 RELINQUISH_PRIVS
752
753 /* Eat any leading paths
754 */
755 if ((pgm = strrchr(argv[0], '/')) == NULL)
756 pgm = argv[0];
757 else
758 pgm++;
759
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760 namep = pgm;
761
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762 /* find out what this program is supposed to do
763 */
764 if (strcmp(pgm, "atq") == 0) {
765 program = ATQ;
e3a4c51f 766 options = "q:v";
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767 }
768 else if (strcmp(pgm, "atrm") == 0) {
769 program = ATRM;
e3a4c51f 770 options = "";
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771 }
772 else if (strcmp(pgm, "batch") == 0) {
773 program = BATCH;
e3a4c51f 774 options = "f:q:mv";
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775 }
776
777 /* process whatever options we can process
778 */
779 opterr=1;
780 while ((c=getopt(argc, argv, options)) != -1)
781 switch (c) {
782 case 'v': /* verify time settings */
783 atverify = 1;
784 break;
785
786 case 'm': /* send mail when job is complete */
787 send_mail = 1;
788 break;
789
790 case 'f':
791 atinput = optarg;
792 break;
793
794 case 'q': /* specify queue */
795 if (strlen(optarg) > 1)
796 usage();
797
798 atqueue = queue = *optarg;
799 if (!(islower(queue)||isupper(queue)))
800 usage();
801
802 queue_set = 1;
803 break;
804
805 case 'd':
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806 warnx("-d is deprecated; use -r instead");
807 /* fall through to 'r' */
808
809 case 'r':
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810 if (program != AT)
811 usage();
812
813 program = ATRM;
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814 options = "";
815 break;
816
817 case 't':
818 if (program != AT)
819 usage();
820 timer = ttime(optarg);
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821 break;
822
823 case 'l':
824 if (program != AT)
825 usage();
826
827 program = ATQ;
e3a4c51f 828 options = "q:";
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829 break;
830
831 case 'b':
832 if (program != AT)
833 usage();
834
835 program = BATCH;
e3a4c51f 836 options = "f:q:mv";
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837 break;
838
839 case 'c':
840 program = CAT;
841 options = "";
842 break;
843
844 default:
845 usage();
846 break;
847 }
848 /* end of options eating
849 */
850
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851 /* select our program
852 */
853 if(!check_permission())
854 errx(EXIT_FAILURE, "you do not have permission to use this program");
855 switch (program) {
856 case ATQ:
857
858 REDUCE_PRIV(DAEMON_UID, DAEMON_GID)
859
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860 if (queue_set == 0)
861 joblist = get_job_list(argc - optind, argv + optind, &joblen);
862 list_jobs(joblist, joblen);
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863 break;
864
865 case ATRM:
866
867 REDUCE_PRIV(DAEMON_UID, DAEMON_GID)
868
869 process_jobs(argc, argv, ATRM);
870 break;
871
872 case CAT:
873
874 process_jobs(argc, argv, CAT);
875 break;
876
877 case AT:
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878 /*
879 * If timer is > -1, then the user gave the time with -t. In that
880 * case, it's already been set. If not, set it now.
881 */
882 if (timer == -1)
883 timer = parsetime(argc, argv);
884
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885 if (atverify)
886 {
887 struct tm *tm = localtime(&timer);
888 fprintf(stderr, "%s\n", asctime(tm));
889 }
890 writefile(timer, queue);
891 break;
892
893 case BATCH:
894 if (queue_set)
895 queue = toupper(queue);
896 else
897 queue = DEFAULT_BATCH_QUEUE;
898
899 if (argc > optind)
900 timer = parsetime(argc, argv);
901 else
902 timer = time(NULL);
903
904 if (atverify)
905 {
906 struct tm *tm = localtime(&timer);
907 fprintf(stderr, "%s\n", asctime(tm));
908 }
909
910 writefile(timer, queue);
911 break;
912
913 default:
914 panic("internal error");
915 break;
916 }
917 exit(EXIT_SUCCESS);
918}