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/* $OpenBSD: aucat.c,v 1.11 2005/01/20 04:21:42 jaredy Exp $ */
/*
* Copyright (c) 1997 Kenneth Stailey. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Kenneth Stailey.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/types.h>
#include <machine/endian.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <err.h>
#define _PATH_AUDIO "/dev/audio"
/*
* aucat: concatenate and play Sun 8-bit .au files
*/
int playfile(int, char *);
void usage(void) __attribute__((__noreturn__));
/*
* function playfile: given a file which is positioned at the beginning
* of what is assumed to be an .au data stream copy it out to the audio
* device. Return 0 on success, -1 on failure.
*/
int
playfile(int fd, char *dev)
{
static int afd = -1;
ssize_t rd;
char buf[5120];
if (afd == -1 && (afd = open(dev, O_WRONLY)) < 0) {
warn("can't open %s", dev);
return(-1);
}
while ((rd = read(fd, buf, sizeof(buf))) > 0)
if (write(afd, buf, rd) != rd)
warn("write");
if (rd == -1)
warn("read");
return (0);
}
int
main(int argc, char *argv[])
{
int fd, ch;
u_int32_t data;
char magic[4];
char *dev;
dev = getenv("AUDIODEVICE");
if (dev == NULL)
dev = _PATH_AUDIO;
while ((ch = getopt(argc, argv, "f:")) != -1) {
switch (ch) {
case 'f':
dev = optarg;
break;
default:
usage();
/* NOTREACHED */
}
}
argc -= optind;
argv += optind;
if (argc == 0)
usage();
while (argc) {
if ((fd = open(*argv, O_RDONLY)) < 0)
err(1, "cannot open %s", *argv);
if (read(fd, magic, sizeof(magic)) != sizeof(magic) ||
strncmp(magic, ".snd", 4)) {
/*
* not an .au file, bad header.
* Assume raw audio data since that's
* what /dev/audio generates by default.
*/
if (lseek(fd, 0, SEEK_SET) == -1)
warn("lseek");
} else {
if (read(fd, &data, sizeof(data)) == sizeof(data)) {
data = ntohl(data);
if (lseek(fd, (off_t)data, SEEK_SET) == -1)
warn("lseek");
}
}
if (playfile(fd, dev) < 0)
exit(1);
(void) close(fd);
argc--;
argv++;
}
exit(0);
}
void
usage(void)
{
extern char *__progname;
fprintf(stderr, "usage: %s [-f device] file ...\n", __progname);
exit(1);
}
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