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Diffstat (limited to 'usr/src/lib/libbc/libc/gen/common/opendir.c')
-rw-r--r--usr/src/lib/libbc/libc/gen/common/opendir.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/usr/src/lib/libbc/libc/gen/common/opendir.c b/usr/src/lib/libbc/libc/gen/common/opendir.c
new file mode 100644
index 0000000000..cf41897df2
--- /dev/null
+++ b/usr/src/lib/libbc/libc/gen/common/opendir.c
@@ -0,0 +1,74 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License"). You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright (c) 1995, by Sun Microsystems, Inc.
+ * All rights reserved.
+ */
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+
+/*
+ * open a directory.
+ */
+DIR *
+opendir(name)
+ char *name;
+{
+ register DIR *dirp;
+ register int fd;
+ struct stat sb;
+ extern int errno;
+ extern char *malloc();
+ extern int open(), close(), fstat();
+
+ if ((fd = open(name, O_RDONLY | O_NDELAY)) == -1)
+ return (NULL);
+ if (fstat(fd, &sb) == -1) {
+ (void) close(fd);
+ return (NULL);
+ }
+ if ((sb.st_mode & S_IFMT) != S_IFDIR) {
+ errno = ENOTDIR;
+ (void) close(fd);
+ return (NULL);
+ }
+ if (((dirp = (DIR *)malloc(sizeof(DIR))) == NULL) ||
+ ((dirp->dd_buf = malloc(sb.st_blksize)) == NULL)) {
+ if (dirp)
+ free(dirp);
+ (void) close(fd);
+ return (NULL);
+ }
+ dirp->dd_fd = fd;
+ dirp->dd_loc = 0;
+ dirp->dd_size = 0;
+ dirp->dd_bsize = sb.st_blksize;
+ dirp->dd_off = 0;
+ (void) fcntl(fd, F_SETFD, FD_CLOEXEC);
+ return (dirp);
+}