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Diffstat (limited to 'usr/src/lib/libbc/libc/gen/common/readdir.c')
-rw-r--r--usr/src/lib/libbc/libc/gen/common/readdir.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/usr/src/lib/libbc/libc/gen/common/readdir.c b/usr/src/lib/libbc/libc/gen/common/readdir.c
new file mode 100644
index 0000000000..c4f2c65652
--- /dev/null
+++ b/usr/src/lib/libbc/libc/gen/common/readdir.c
@@ -0,0 +1,67 @@
+/*
+ * 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 1987 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/param.h>
+#include <dirent.h>
+
+/*
+ * get next entry in a directory.
+ */
+struct dirent *
+readdir(dirp)
+ register DIR *dirp;
+{
+ register struct dirent *dp;
+ int saveloc = 0;
+
+next:
+ if (dirp->dd_size != 0) {
+ dp = (struct dirent *)&dirp->dd_buf[dirp->dd_loc];
+ saveloc = dirp->dd_loc; /* save for possible EOF */
+ dirp->dd_loc += dp->d_reclen;
+ }
+ if (dirp->dd_loc >= dirp->dd_size)
+ dirp->dd_loc = dirp->dd_size = 0;
+
+ if (dirp->dd_size == 0 /* refill buffer */
+ && (dirp->dd_size = getdents(dirp->dd_fd, dirp->dd_buf, dirp->dd_bsize)
+ ) <= 0
+ ) {
+ if (dirp->dd_size == 0) /* This means EOF */
+ dirp->dd_loc = saveloc; /* EOF so save for telldir */
+ return (NULL); /* error or EOF */
+ }
+
+ dp = (struct dirent *)&dirp->dd_buf[dirp->dd_loc];
+ if (dp->d_reclen <= 0)
+ return (NULL);
+ if (dp->d_fileno == 0)
+ goto next;
+ dirp->dd_off = dp->d_off;
+ return(dp);
+}