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Use err(3). Add usage().

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This commit is contained in:
Philippe Charnier 1997-07-21 12:09:34 +00:00
parent bef3ca0315
commit a4a2bc1716
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=27575
1 changed files with 32 additions and 29 deletions
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61
usr.bin/lock/lock.c
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@ -35,13 +35,17 @@
*/
#ifndef lint
static char copyright[] =
static const char copyright[] =
"@(#) Copyright (c) 1980, 1987, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)lock.c 8.1 (Berkeley) 6/6/93";
#endif
static const char rcsid[] =
"$Id$";
#endif /* not lint */
/*
@ -56,15 +60,19 @@ static char sccsid[] = "@(#)lock.c 8.1 (Berkeley) 6/6/93";
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/signal.h>
#include <sgtty.h>
#include <pwd.h>
#include <stdio.h>
#include <err.h>
#include <ctype.h>
#include <pwd.h>
#include <sgtty.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#define TIMEOUT 15
void quit(), bye(), hi();
static void usage __P((void));
struct timeval timeout;
struct timeval zerotime;
@ -73,12 +81,11 @@ long nexttime; /* keep the timeout time */
int no_timeout; /* lock terminal forever */
/*ARGSUSED*/
int
main(argc, argv)
int argc;
char **argv;
{
extern char *optarg;
extern int errno, optind;
struct passwd *pw;
struct timeval timval;
struct itimerval ntimer, otimer;
@ -95,19 +102,13 @@ main(argc, argv)
while ((ch = getopt(argc, argv, "npt:")) != -1)
switch((char)ch) {
case 't':
if ((sectimeout = atoi(optarg)) <= 0) {
(void)fprintf(stderr,
"lock: illegal timeout value.\n");
exit(1);
}
if ((sectimeout = atoi(optarg)) <= 0)
errx(1, "illegal timeout value");
break;
case 'p':
usemine = 1;
if (!(pw = getpwuid(getuid()))) {
(void)fprintf(stderr,
"lock: unknown uid %d.\n", getuid());
exit(1);
}
if (!(pw = getpwuid(getuid())))
errx(1, "unknown uid %d", getuid());
mypw = strdup(pw->pw_passwd);
break;
case 'n':
@ -115,9 +116,7 @@ main(argc, argv)
break;
case '?':
default:
(void)fprintf(stderr,
"usage: lock [-n] [-p] [-t timeout]\n");
exit(1);
usage();
}
timeout.tv_sec = sectimeout * 60;
@ -126,15 +125,10 @@ main(argc, argv)
if (ioctl(0, TIOCGETP, &tty)) /* get information for header */
exit(1);
gethostname(hostname, sizeof(hostname));
if (!(ttynam = ttyname(0))) {
(void)printf("lock: not a terminal?\n");
exit(1);
}
if (gettimeofday(&timval, (struct timezone *)NULL)) {
(void)fprintf(stderr,
"lock: gettimeofday: %s\n", strerror(errno));
exit(1);
}
if (!(ttynam = ttyname(0)))
errx(1, "not a terminal?");
if (gettimeofday(&timval, (struct timezone *)NULL))
err(1, "gettimeofday");
nexttime = timval.tv_sec + (sectimeout * 60);
timp = localtime(&timval.tv_sec);
ap = asctime(timp);
@ -162,7 +156,7 @@ main(argc, argv)
ioctl(0, TIOCSETP, &tty);
exit(1);
}
s[0] = NULL;
s[0] = '\0';
mypw = s1;
}
@ -205,6 +199,15 @@ main(argc, argv)
exit(1);
}
quit();
return(0); /* not reached */
}
static void
usage()
{
(void)fprintf(stderr, "usage: lock [-n] [-p] [-t timeout]\n");
exit(1);
}
void