1 files changed, 116 insertions, 0 deletions
diff --git a/usr/src/lib/libbc/libc/sys/common/getdents.c b/usr/src/lib/libbc/libc/sys/common/getdents.c
new file mode 100644
index 0000000000..dce588a3a3
--- /dev/null
+++ b/usr/src/lib/libbc/libc/sys/common/getdents.c
@@ -0,0 +1,116 @@
+/*
+ * 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 1994 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/dirent.h>
+#include <sys/syscall.h>
+#include <sys/param.h>
+#include <sys/errno.h>
+
+#define	ALIGN	4
+
+extern int errno;
+
+struct n_dirent{
+	unsigned long	d_ino;
+	long		d_off;
+	unsigned short	d_reclen;
+	char		d_name[1];
+};
+
+
+int getdents(fd, buf, bytes)
+int fd;
+char *buf;
+int bytes;
+{
+	return(bc_getdents(fd, buf, bytes));
+}
+
+
+int bc_getdents(fd, buf, bytes)
+int fd;
+char *buf;
+int bytes;
+{
+	int ret, nbytes;
+	char *nbuf;
+	struct dirent *dir;
+	struct n_dirent *ndir;
+	int count=0;
+	off_t last_off;
+	
+	if (buf == (char *)0 || buf == (char *)-1) {
+		errno = EFAULT;
+		return(-1);
+	}
+
+	nbytes = bytes; /* buffer can only be as large as user expects */
+
+	if ((nbuf = (char *)malloc(nbytes)) == NULL) {
+		return(-1);
+	}
+	
+	if ((ret = _syscall(SYS_getdents, fd, nbuf, nbytes)) == -1) {
+		free(nbuf);
+		return(ret);
+	}
+
+
+	dir = (struct dirent *)buf;
+	ndir = (struct n_dirent *)nbuf;	/* source directory format */
+
+	while ((((int)(((char *)dir) + sizeof(struct n_dirent) +
+	    strlen(ndir->d_name) + ALIGN) & ~(ALIGN - 1)) <
+	    (int)(buf + bytes)) &&
+	    ((char *)ndir + sizeof(struct n_dirent) <= (nbuf + ret))) {
+		dir->d_off = ndir->d_off;
+		dir->d_fileno = ndir->d_ino;	/* NOT VALID */
+		dir->d_namlen = strlen(ndir->d_name);
+		dir->d_reclen = (short)((sizeof(struct dirent) - MAXNAMLEN + 
+		    dir->d_namlen + ALIGN) & -ALIGN);
+		strncpy(dir->d_name, ndir->d_name, dir->d_namlen);
+		dir->d_name[dir->d_namlen] = '\0';
+		count += dir->d_reclen;
+		last_off = ndir->d_off;
+		dir  = (struct dirent *)((char *)dir + 
+				    ((int)( dir->d_reclen)));
+		ndir = (struct n_dirent *)((char *)ndir +
+				    ((int)(ndir->d_reclen)));
+	}
+
+	/*
+	 * Seek to the next entry in the directory. If all entries
+	 * in ndir were not copied to dir, the next getdents syscall
+	 * will start reading from there.
+	 */
+	(void)lseek(fd, last_off, SEEK_SET);
+	free(nbuf);
+	return(count);
+}