Annotation of sys/lib/libsa/readdir.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: readdir.c,v 1.8 2006/10/11 20:56:59 deraadt Exp $ */
2:
3: /*
4: * Copyright (c) 1996 Michael Shalayeff
5: * All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: *
16: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
20: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26: * SUCH DAMAGE.
27: *
28: */
29:
30: #ifndef NO_READDIR
31:
32: #include <sys/types.h>
33: #include <sys/stat.h>
34: #define _KERNEL
35: #include <sys/fcntl.h>
36: #undef _KERNEL
37: #include "stand.h"
38:
39:
40: int
41: opendir(char *name)
42: {
43: struct stat sb;
44: int fd;
45:
46: if (stat(name, &sb) < 0)
47: return -1;
48:
49: if (!S_ISDIR(sb.st_mode)) {
50: errno = ENOTDIR;
51: return -1;
52: }
53:
54: /* XXX rewind needed for some dirs */
55: #ifdef __INTERNAL_LIBSA_CREAD
56: if ((fd = oopen(name, O_RDONLY)) >= 0)
57: olseek(fd, 0, 0);
58: #else
59: if ((fd = open(name, O_RDONLY)) >= 0)
60: lseek(fd, 0, SEEK_SET);
61: #endif
62:
63: return fd;
64: }
65:
66: int
67: readdir(int fd, char *dest)
68: {
69: struct open_file *f = &files[fd];
70:
71: if (fd < 0 || fd >= SOPEN_MAX ||
72: !((f = &files[fd])->f_flags & F_READ)) {
73: errno = EBADF;
74: return (-1);
75: }
76:
77: if (f->f_flags & F_RAW) {
78: errno = EOPNOTSUPP;
79: return (-1);
80: }
81: if ((errno = (f->f_ops->readdir)(f, dest)))
82: return (-1);
83:
84: return 0;
85: }
86:
87: void
88: closedir(int fd)
89: {
90: #ifdef __INTERNAL_LIBSA_CREAD
91: oclose(fd);
92: #else
93: close(fd);
94: #endif
95: }
96:
97: #endif /* NO_READDIR */
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