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/* $OpenBSD: aucat.c,v 1.10 2005/01/13 19:19:44 ian 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>
/*
* aucat: concatenate and play Sun 8-bit .au files
*/
int playfile(int, char *);
/* 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;
int 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) {
write(afd, buf, rd);
if (rd < sizeof(buf))
break;
}
return (0);
}
int
main(int argc, char *argv[])
{
int fd, ch;
unsigned long data;
char magic[5];
char *dev;
dev = getenv("AUDIODEVICE");
if (dev == 0)
dev = "/dev/audio";
while ((ch = getopt(argc, argv, "f:")) != -1) {
switch(ch) {
case 'f':
dev = optarg;
break;
}
}
argc -= optind;
argv += optind;
while (argc) {
if ((fd = open(*argv, O_RDONLY)) < 0)
err(1, "cannot open %s", *argv);
read(fd, magic, 4);
magic[4] = '\0';
if (strcmp(magic, ".snd")) {
/*
* not an .au file, bad header.
* Assume raw audio data since that's
* what /dev/audio generates by default.
*/
lseek(fd, 0, SEEK_SET);
} else {
read(fd, &data, sizeof(data));
data = ntohl(data);
lseek(fd, (off_t)data, SEEK_SET);
}
if (playfile(fd, dev) < 0)
exit(1);
(void) close(fd);
argc--;
argv++;
}
exit(0);
}
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