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Use err(3). Style in usage().

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This commit is contained in:
Philippe Charnier 1997-09-04 11:52:28 +00:00
parent 112eace26d
commit dd1f44fc09
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=29103
2 changed files with 25 additions and 33 deletions
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10
usr.sbin/cdcontrol/cdcontrol.1
View File

@ -1,4 +1,4 @@
.\" $Id$
.\" $Id: cdcontrol.1,v 1.10 1997/02/22 16:04:30 peter Exp $
.\"
.Dd July 3, 1995
.Dt CDCONTROL 1
@ -11,9 +11,9 @@
.Op Fl s
.Op Fl v
.Op Fl f Ar discname
.Op Ar command args...
.Op Ar command args ...
.Sh DESCRIPTION
.Nm cdcontrol
.Nm Cdcontrol
is a program to control audio features of a CD drive. The device is a name such
as cd0 or mcd0.
.Pp
@ -22,7 +22,7 @@ If the device not specified, the environment variable
will be used to find the cd device.
.Pp
If no command is given, then
.Nm cdcontrol
.Nm
enters an interactive mode, reading commands from the standard input.
.Pp
The following options are available:
@ -157,6 +157,6 @@ Andrey A.\ Chernov,
Serge V.\ Vakulenko
.Sh HISTORY
The
.Nm cdcontrol
.Nm
command appeared in
.Fx 2.1 .

48
usr.sbin/cdcontrol/cdcontrol.c
View File

@ -16,16 +16,20 @@
* 11-Oct-1995: Serge V.Vakulenko <vak@cronyx.ru>
* New eject algorithm.
* Some code style reformatting.
*
* $Id$
*/
#ifndef lint
static const char rcsid[] =
"$Id$";
#endif /* not lint */
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <sys/file.h>
#include <sys/cdio.h>
#include <sys/ioctl.h>
@ -96,8 +100,6 @@ int fd = -1;
int verbose = 1;
int msf = 1;
extern char *__progname;
int setvol __P((int, int));
int read_toc_entrys __P((int));
int play_msf __P((int, int, int, int, int, int));
@ -144,14 +146,7 @@ void help ()
void usage ()
{
printf ("Usage:\n\t%s [ -vs ] [ -f disc ] [ command args... ]\n", __progname);
printf ("Options:\n");
printf ("\t-v - verbose mode\n");
printf ("\t-s - silent mode\n");
printf ("\t-f disc - a block device name such as /dev/cd0c\n");
printf ("\tMUSIC_CD - shell variable with device name\n");
printf ("Commands:\n");
help ();
fprintf (stderr, "usage: cdcontrol [-vs] [-f disc] [command args ...]\n");
exit (1);
}
@ -195,8 +190,7 @@ int main (int argc, char **argv)
if (! cdname) {
cdname = DEFAULT_CD_DRIVE;
fprintf (stderr,
"No CD device name specified. Defaulting to %s.\n", cdname);
warnx("no CD device name specified, defaulting to %s", cdname);
}
if (argc > 0) {
@ -232,7 +226,7 @@ int main (int argc, char **argv)
arg = input (&cmd);
if (run (cmd, arg) < 0) {
if (verbose)
perror (__progname);
warn(NULL);
close (fd);
fd = -1;
}
@ -304,7 +298,7 @@ int run (int cmd, char *arg)
if (! strcasecmp (arg, "off"))
return ioctl (fd, CDIOCCLRDEBUG);
printf ("%s: Invalid command arguments\n", __progname);
warnx("invalid command arguments");
return (0);
@ -345,7 +339,7 @@ int run (int cmd, char *arg)
else if (! strcasecmp (arg, "lba"))
msf = 0;
else
printf ("%s: Invalid command arguments\n", __progname);
warnx("invalid command arguments");
return (0);
case CMD_VOLUME:
@ -368,7 +362,7 @@ int run (int cmd, char *arg)
return ioctl (fd, CDIOCSETMUTE);
if (2 != sscanf (arg, "%d %d", &l, &r)) {
printf ("%s: Invalid command arguments\n", __progname);
warnx("invalid command arguments");
return (0);
}
@ -660,7 +654,7 @@ int play (char *arg)
return (play_track (start, istart, end, iend));
Clean_up:
printf ("%s: Invalid command arguments\n", __progname);
warnx("invalid command arguments");
return (0);
}
@ -737,7 +731,7 @@ int info (char *arg)
printf ("%d %d %d\n", h.starting_track,
h.ending_track, h.len);
} else {
perror ("getting toc header");
warn("getting toc header");
return (rc);
}
@ -911,7 +905,7 @@ char *input (int *cmd)
do {
if (verbose)
fprintf (stderr, "%s> ", __progname);
fprintf (stderr, "cdcontrol> ");
if (! fgets (buf, sizeof (buf), stdin)) {
*cmd = CMD_QUIT;
fprintf (stderr, "\r\n");
@ -963,7 +957,7 @@ char *parse (char *buf, int *cmd)
/* Try short hand forms then... */
if (len >= c->min && ! strncasecmp (buf, c->name, len)) {
if (*cmd != -1 && *cmd != c->command) {
fprintf (stderr, "Ambiguous command\n");
warnx("ambiguous command");
return (0);
}
*cmd = c->command;
@ -971,8 +965,7 @@ char *parse (char *buf, int *cmd)
}
if (*cmd == -1) {
fprintf (stderr, "%s: Invalid command, enter ``help'' for commands.\n",
__progname);
warnx("invalid command, enter ``help'' for commands");
return (0);
}
@ -1007,11 +1000,10 @@ int open_cd ()
/* ENXIO has an overloaded meaning here.
* The original "Device not configured" should
* be interpreted as "No disc in drive %s". */
fprintf (stderr, "%s: No disc in drive %s.\n", __progname, devbuf);
warnx("no disc in drive %s", devbuf);
return (0);
}
perror (devbuf);
exit (1);
err(1, "%s", devbuf);
}
return (1);
}