1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
/*
* Copyright (C) 2013 Internet Systems Consortium, Inc. ("ISC")
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <ctype.h>
#include <errno.h>
#include <unistd.h>
#include <string.h>
#include "dlz_minimal.h"
#include "dir.h"
void
dir_init(dir_t *dir) {
dir->entry.name[0] = '\0';
dir->entry.length = 0;
dir->handle = NULL;
}
isc_result_t
dir_open(dir_t *dir, const char *dirname) {
char *p;
isc_result_t result = ISC_R_SUCCESS;
if (strlen(dirname) + 3 > sizeof(dir->dirname))
return (ISC_R_NOSPACE);
strcpy(dir->dirname, dirname);
p = dir->dirname + strlen(dir->dirname);
if (dir->dirname < p && *(p - 1) != '/')
*p++ = '/';
*p++ = '*';
*p = '\0';
dir->handle = opendir(dirname);
if (dir->handle == NULL) {
switch (errno) {
case ENOTDIR:
case ELOOP:
case EINVAL:
case ENAMETOOLONG:
case EBADF:
result = ISC_R_INVALIDFILE;
case ENOENT:
result = ISC_R_FILENOTFOUND;
case EACCES:
case EPERM:
result = ISC_R_NOPERM;
case ENOMEM:
result = ISC_R_NOMEMORY;
default:
result = ISC_R_UNEXPECTED;
}
}
return (result);
}
/*!
* \brief Return previously retrieved file or get next one.
* Unix's dirent has
* separate open and read functions, but the Win32 and DOS interfaces open
* the dir stream and reads the first file in one operation.
*/
isc_result_t
dir_read(dir_t *dir) {
struct dirent *entry;
entry = readdir(dir->handle);
if (entry == NULL)
return (ISC_R_NOMORE);
if (sizeof(dir->entry.name) <= strlen(entry->d_name))
return (ISC_R_UNEXPECTED);
strcpy(dir->entry.name, entry->d_name);
dir->entry.length = strlen(entry->d_name);
return (ISC_R_SUCCESS);
}
/*!
* \brief Close directory stream.
*/
void
dir_close(dir_t *dir) {
(void)closedir(dir->handle);
dir->handle = NULL;
}
/*!
* \brief Reposition directory stream at start.
*/
isc_result_t
dir_reset(dir_t *dir) {
rewinddir(dir->handle);
return (ISC_R_SUCCESS);
}
|
