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