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Annotation of src/usr.bin/aucat/aucat.c, Revision 1.6

1.6     ! deraadt     1: /*     $OpenBSD: aucat.c,v 1.5 2002/12/09 00:45:38 millert Exp $       */
1.1       kstailey    2: /*
                      3:  * Copyright (c) 1997 Kenneth Stailey.  All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms, with or without
                      6:  * modification, are permitted provided that the following conditions
                      7:  * are met:
                      8:  * 1. Redistributions of source code must retain the above copyright
                      9:  *    notice, this list of conditions and the following disclaimer.
                     10:  * 2. Redistributions in binary form must reproduce the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer in the
                     12:  *    documentation and/or other materials provided with the distribution.
                     13:  * 3. All advertising materials mentioning features or use of this software
                     14:  *    must display the following acknowledgement:
                     15:  *     This product includes software developed by Kenneth Stailey.
                     16:  * 4. The name of the author may not be used to endorse or promote products
                     17:  *    derived from this software without specific prior written permission.
                     18:  *
                     19:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     20:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
                     21:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     22:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
                     23:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
                     24:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
                     25:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
                     26:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
                     27:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
                     28:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     29:  */
                     30:
                     31: #include <sys/types.h>
                     32: #include <machine/endian.h>
                     33: #include <fcntl.h>
                     34: #include <stdio.h>
1.4       millert    35: #include <stdlib.h>
1.1       kstailey   36: #include <unistd.h>
1.4       millert    37: #include <err.h>
1.1       kstailey   38:
                     39: /*
                     40:  * aucat: concatinate and play Sun 8-bit .au files
                     41:  */
                     42:
                     43: /* function playfile: given a file which is positioned at the beginning
                     44:  * of what is assumed to be an .au data stream copy it out to the audio
1.5       millert    45:  * device.  Return 0 on success, -1 on failure.
1.1       kstailey   46:  */
                     47: int
1.6     ! deraadt    48: playfile(int fd, char *dev)
1.1       kstailey   49: {
1.4       millert    50:        static int afd = -1;
                     51:        int rd;
                     52:        char buf[5120];
                     53:
                     54:        if (afd == -1 && (afd = open(dev, O_WRONLY)) < 0) {
                     55:                warn("can't open %s", dev);
                     56:                return(-1);
                     57:        }
                     58:        while ((rd = read(fd, buf, sizeof(buf))) > 0) {
                     59:                write(afd, buf, rd);
                     60:                if (rd < sizeof(buf))
                     61:                        break;
                     62:        }
                     63:
                     64:        return (0);
1.1       kstailey   65: }
                     66:
                     67: int
1.6     ! deraadt    68: main(int argc, char *argv[])
1.1       kstailey   69: {
1.4       millert    70:        int fd, ch;
                     71:        unsigned long data;
                     72:        char magic[5];
                     73:        char *dev;
                     74:
                     75:        dev = getenv("AUDIODEVICE");
                     76:        if (dev == 0)
                     77:                dev = "/dev/audio";
                     78:
                     79:        while ((ch = getopt(argc, argv, "f:")) != -1) {
                     80:                switch(ch) {
                     81:                case 'f':
                     82:                        dev = optarg;
                     83:                        break;
                     84:                }
                     85:        }
                     86:        argc -= optind;
                     87:        argv += optind;
                     88:
                     89:        while (argc) {
                     90:                if ((fd = open(*argv, O_RDONLY)) < 0)
                     91:                        err(1, "cannot open %s", *argv);
                     92:
                     93:                read(fd, magic, 4);
                     94:                magic[4] = '\0';
                     95:                if (strcmp(magic, ".snd")) {
                     96:                        /*
                     97:                         * not an .au file, bad header.
                     98:                         * Assume raw audio data since that's
                     99:                         * what /dev/audio generates by default.
                    100:                         */
                    101:                        lseek(fd, 0, SEEK_SET);
                    102:                } else {
                    103:                        read(fd, &data, sizeof(data));
                    104:                        data = ntohl(data);
                    105:                        lseek(fd, (off_t)data, SEEK_SET);
                    106:                }
                    107:                if (playfile(fd, dev) < 0)
                    108:                        exit(1);
                    109:                argc--;
                    110:                argv++;
                    111:        }
                    112:        exit(0);
1.1       kstailey  113: }