1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate *
4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate * with the License.
8*7c478bd9Sstevel@tonic-gate *
9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate *
14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate *
20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate * Copyright (c) 1995, by Sun Microsystems, Inc.
24*7c478bd9Sstevel@tonic-gate * All rights reserved.
25*7c478bd9Sstevel@tonic-gate */
26*7c478bd9Sstevel@tonic-gate
27*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*7c478bd9Sstevel@tonic-gate
29*7c478bd9Sstevel@tonic-gate #include <sys/param.h>
30*7c478bd9Sstevel@tonic-gate #include <sys/stat.h>
31*7c478bd9Sstevel@tonic-gate #include <dirent.h>
32*7c478bd9Sstevel@tonic-gate #include <errno.h>
33*7c478bd9Sstevel@tonic-gate #include <fcntl.h>
34*7c478bd9Sstevel@tonic-gate
35*7c478bd9Sstevel@tonic-gate /*
36*7c478bd9Sstevel@tonic-gate * open a directory.
37*7c478bd9Sstevel@tonic-gate */
38*7c478bd9Sstevel@tonic-gate DIR *
opendir(name)39*7c478bd9Sstevel@tonic-gate opendir(name)
40*7c478bd9Sstevel@tonic-gate char *name;
41*7c478bd9Sstevel@tonic-gate {
42*7c478bd9Sstevel@tonic-gate register DIR *dirp;
43*7c478bd9Sstevel@tonic-gate register int fd;
44*7c478bd9Sstevel@tonic-gate struct stat sb;
45*7c478bd9Sstevel@tonic-gate extern int errno;
46*7c478bd9Sstevel@tonic-gate extern char *malloc();
47*7c478bd9Sstevel@tonic-gate extern int open(), close(), fstat();
48*7c478bd9Sstevel@tonic-gate
49*7c478bd9Sstevel@tonic-gate if ((fd = open(name, O_RDONLY | O_NDELAY)) == -1)
50*7c478bd9Sstevel@tonic-gate return (NULL);
51*7c478bd9Sstevel@tonic-gate if (fstat(fd, &sb) == -1) {
52*7c478bd9Sstevel@tonic-gate (void) close(fd);
53*7c478bd9Sstevel@tonic-gate return (NULL);
54*7c478bd9Sstevel@tonic-gate }
55*7c478bd9Sstevel@tonic-gate if ((sb.st_mode & S_IFMT) != S_IFDIR) {
56*7c478bd9Sstevel@tonic-gate errno = ENOTDIR;
57*7c478bd9Sstevel@tonic-gate (void) close(fd);
58*7c478bd9Sstevel@tonic-gate return (NULL);
59*7c478bd9Sstevel@tonic-gate }
60*7c478bd9Sstevel@tonic-gate if (((dirp = (DIR *)malloc(sizeof(DIR))) == NULL) ||
61*7c478bd9Sstevel@tonic-gate ((dirp->dd_buf = malloc(sb.st_blksize)) == NULL)) {
62*7c478bd9Sstevel@tonic-gate if (dirp)
63*7c478bd9Sstevel@tonic-gate free(dirp);
64*7c478bd9Sstevel@tonic-gate (void) close(fd);
65*7c478bd9Sstevel@tonic-gate return (NULL);
66*7c478bd9Sstevel@tonic-gate }
67*7c478bd9Sstevel@tonic-gate dirp->dd_fd = fd;
68*7c478bd9Sstevel@tonic-gate dirp->dd_loc = 0;
69*7c478bd9Sstevel@tonic-gate dirp->dd_size = 0;
70*7c478bd9Sstevel@tonic-gate dirp->dd_bsize = sb.st_blksize;
71*7c478bd9Sstevel@tonic-gate dirp->dd_off = 0;
72*7c478bd9Sstevel@tonic-gate (void) fcntl(fd, F_SETFD, FD_CLOEXEC);
73*7c478bd9Sstevel@tonic-gate return (dirp);
74*7c478bd9Sstevel@tonic-gate }
75