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gen/devname.c /dev/null Libc-583
--- /dev/null
+++ Libc/Libc-583/gen/devname.c
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 1999, 2004 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+/*
+ * Copyright (c) 1989, 1993
+ *	The Regents of the University of California.  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 the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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 <sys/stat.h>
+
+#include <db.h>
+#include <dirent.h>
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <paths.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+char *
+devname_r(dev_t dev, mode_t type, char *buf, int len)
+{
+	register DIR *dp;
+	register struct dirent *dirp;
+	struct stat sb;
+	char _buf[sizeof(_PATH_DEV) + MAXNAMLEN];
+
+	strcpy(_buf, _PATH_DEV);
+
+	if ((dp = opendir(_PATH_DEV)) == NULL) 
+		return (NULL);
+
+	while ( (dirp = readdir(dp)) ) {
+		bcopy(dirp->d_name, _buf + sizeof(_PATH_DEV) - 1,
+		    dirp->d_namlen + 1);
+		if (lstat(_buf, &sb))
+			continue;
+		if (dev != sb.st_rdev)
+			continue;
+		if (type != (sb.st_mode & S_IFMT))
+			continue;
+		if (dirp->d_namlen + 1 > len)
+			break;
+		strcpy(buf, dirp->d_name);
+		(void)closedir(dp);
+		return (buf);
+	}
+	(void)closedir(dp);
+	return (NULL);
+}
+
+char *
+devname(dev_t dev, mode_t type)
+{
+	static char *buf = NULL;
+
+	if( buf == NULL ) {
+		buf = malloc(MAXNAMLEN);
+		if( buf == NULL )
+			return NULL;
+	}
+
+	return (devname_r(dev, type, buf, MAXNAMLEN));
+}