--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/audio/SDL_audiodev.c	Thu Apr 26 16:45:43 2001 +0000
@@ -0,0 +1,182 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public
+    License along with this library; if not, write to the Free
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    Sam Lantinga
+    slouken@devolution.com
+*/
+
+#ifdef SAVE_RCSID
+static char rcsid =
+ "@(#) $Id$";
+#endif
+
+/* Get the name of the audio device we use for output */
+
+#if defined(unix) || defined(__unix__)
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <string.h>
+
+#include "SDL_audiodev_c.h"
+
+#ifndef _PATH_DEV_DSP
+#define _PATH_DEV_DSP	"/dev/dsp"
+#endif
+#ifndef _PATH_DEV_DSP24
+#define _PATH_DEV_DSP24	"/dev/sound/dsp"
+#endif
+#ifndef _PATH_DEV_AUDIO
+#define _PATH_DEV_AUDIO	"/dev/audio"
+#endif
+
+
+int SDL_OpenAudioPath(char *path, int maxlen, int flags, int classic)
+{
+	const char *audiodev;
+	int audio_fd;
+	char audiopath[1024];
+
+	/* Figure out what our audio device is */
+	if ( ((audiodev=getenv("SDL_PATH_DSP")) == NULL) &&
+	     ((audiodev=getenv("AUDIODEV")) == NULL) ) {
+		if ( classic ) {
+			audiodev = _PATH_DEV_AUDIO;
+		} else {
+			struct stat sb;
+
+			/* Added support for /dev/sound/\* in Linux 2.4 */
+			if ( (stat("/dev/sound", &sb) == 0) &&
+			     S_ISDIR(sb.st_mode) ) {
+				audiodev = _PATH_DEV_DSP24;
+			} else {
+				audiodev = _PATH_DEV_DSP;
+			}
+		}
+	}
+	audio_fd = open(audiodev, flags, 0);
+
+	/* If the first open fails, look for other devices */
+	if ( (audio_fd < 0) && (strlen(audiodev) < (sizeof(audiopath)-3)) ) {
+		int exists, instance;
+		struct stat sb;
+
+		instance = 1;
+		do { /* Don't use errno ENOENT - it may not be thread-safe */
+			sprintf(audiopath, "%s%d", audiodev, instance++);
+			exists = 0;
+			if ( stat(audiopath, &sb) == 0 ) {
+				exists = 1;
+				audio_fd = open(audiopath, flags, 0); 
+			}
+		} while ( exists && (audio_fd < 0) );
+		audiodev = audiopath;
+	}
+	if ( path != NULL ) {
+		strncpy(path, audiodev, maxlen);
+		path[maxlen-1] = '\0';
+	}
+	return(audio_fd);
+}
+
+#elif defined(_AIX)
+
+/* Get the name of the audio device we use for output */
+
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <string.h>
+
+#include "SDL_audiodev_c.h"
+
+#ifndef _PATH_DEV_DSP
+#define _PATH_DEV_DSP	"/dev/%caud%c/%c"
+#endif
+
+char devsettings[][3] =
+{
+    { 'p', '0', '1' }, { 'p', '0', '2' }, { 'p', '0', '3' }, { 'p', '0', '4' },
+    { 'p', '1', '1' }, { 'p', '1', '2' }, { 'p', '1', '3' }, { 'p', '1', '4' },
+    { 'p', '2', '1' }, { 'p', '2', '2' }, { 'p', '2', '3' }, { 'p', '2', '4' },
+    { 'p', '3', '1' }, { 'p', '3', '2' }, { 'p', '3', '3' }, { 'p', '3', '4' },
+    { 'b', '0', '1' }, { 'b', '0', '2' }, { 'b', '0', '3' }, { 'b', '0', '4' },
+    { 'b', '1', '1' }, { 'b', '1', '2' }, { 'b', '1', '3' }, { 'b', '1', '4' },
+    { 'b', '2', '1' }, { 'b', '2', '2' }, { 'b', '2', '3' }, { 'b', '2', '4' },
+    { 'b', '3', '1' }, { 'b', '3', '2' }, { 'b', '3', '3' }, { 'b', '3', '4' },
+    { '\0', '\0', '\0' }
+};
+
+static int OpenUserDefinedDevice(char *path, int maxlen, int flags)
+{
+	const char *audiodev;
+	int  audio_fd;
+
+	/* Figure out what our audio device is */
+	if ((audiodev=getenv("SDL_PATH_DSP")) == NULL) {
+	    audiodev=getenv("AUDIODEV");
+	}
+	if ( audiodev == NULL ) {
+	    return -1;
+	}
+	audio_fd = open(audiodev, flags, 0);
+	if ( path != NULL ) {
+		strncpy(path, audiodev, maxlen);
+		path[maxlen-1] = '\0';
+	}
+	return audio_fd;
+}
+
+int SDL_OpenAudioPath(char *path, int maxlen, int flags, int classic)
+{
+    struct stat sb;
+    int         audio_fd;
+    char        audiopath[1024];
+    int         cycle;
+
+    audio_fd = OpenUserDefinedDevice(path,maxlen,flags);
+    if ( audio_fd != -1 ) {
+        return audio_fd;
+    }
+
+    cycle    = 0;
+    while( devsettings[cycle][0] != '\0' ) {
+        sprintf( audiopath,
+                 _PATH_DEV_DSP,
+                 devsettings[cycle][0],
+                 devsettings[cycle][1],
+                 devsettings[cycle][2]);
+
+	if ( stat(audiopath, &sb) == 0 ) {
+	    audio_fd = open(audiopath, flags, 0);
+	    if ( audio_fd > 0 ) {
+		if ( path != NULL ) {
+		    strncpy( path, audiopath, maxlen );
+		    path[maxlen-1] = '\0';
+		}
+	        return audio_fd;
+	    }
+	}
+    }
+    return -1;
+}
+
+#endif /* UNIX system */