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
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
/*
* Copyright 2004-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <windows.h>
#include <tchar.h>
#ifndef LPDIR_H
# include "LPdir.h"
#endif
/*
* We're most likely overcautious here, but let's reserve for broken WinCE
* headers and explicitly opt for UNICODE call. Keep in mind that our WinCE
* builds are compiled with -DUNICODE [as well as -D_UNICODE].
*/
#if defined(LP_SYS_WINCE) && !defined(FindFirstFile)
# define FindFirstFile FindFirstFileW
#endif
#if defined(LP_SYS_WINCE) && !defined(FindNextFile)
# define FindNextFile FindNextFileW
#endif
#ifndef NAME_MAX
# define NAME_MAX 255
#endif
struct LP_dir_context_st {
WIN32_FIND_DATA ctx;
HANDLE handle;
char entry_name[NAME_MAX + 1];
};
const char *LP_find_file(LP_DIR_CTX **ctx, const char *directory)
{
if (ctx == NULL || directory == NULL) {
errno = EINVAL;
return 0;
}
errno = 0;
if (*ctx == NULL) {
const char *extdir = directory;
char *extdirbuf = NULL;
size_t dirlen = strlen(directory);
if (dirlen == 0) {
errno = ENOENT;
return 0;
}
*ctx = malloc(sizeof(**ctx));
if (*ctx == NULL) {
errno = ENOMEM;
return 0;
}
memset(*ctx, 0, sizeof(**ctx));
if (directory[dirlen - 1] != '*') {
extdirbuf = (char *)malloc(dirlen + 3);
if (extdirbuf == NULL) {
free(*ctx);
*ctx = NULL;
errno = ENOMEM;
return 0;
}
if (directory[dirlen - 1] != '/' && directory[dirlen - 1] != '\\')
extdir = strcat(strcpy(extdirbuf, directory), "/*");
else
extdir = strcat(strcpy(extdirbuf, directory), "*");
}
if (sizeof(TCHAR) != sizeof(char)) {
TCHAR *wdir = NULL;
/* len_0 denotes string length *with* trailing 0 */
size_t index = 0, len_0 = strlen(extdir) + 1;
wdir = (TCHAR *)calloc(len_0, sizeof(TCHAR));
if (wdir == NULL) {
if (extdirbuf != NULL) {
free(extdirbuf);
}
free(*ctx);
*ctx = NULL;
errno = ENOMEM;
return 0;
}
#ifdef LP_MULTIBYTE_AVAILABLE
if (!MultiByteToWideChar
(CP_ACP, 0, extdir, len_0, (WCHAR *)wdir, len_0))
#endif
for (index = 0; index < len_0; index++)
wdir[index] = (TCHAR)extdir[index];
(*ctx)->handle = FindFirstFile(wdir, &(*ctx)->ctx);
free(wdir);
} else {
(*ctx)->handle = FindFirstFile((TCHAR *)extdir, &(*ctx)->ctx);
}
if (extdirbuf != NULL) {
free(extdirbuf);
}
if ((*ctx)->handle == INVALID_HANDLE_VALUE) {
free(*ctx);
*ctx = NULL;
errno = EINVAL;
return 0;
}
} else {
if (FindNextFile((*ctx)->handle, &(*ctx)->ctx) == FALSE) {
return 0;
}
}
if (sizeof(TCHAR) != sizeof(char)) {
TCHAR *wdir = (*ctx)->ctx.cFileName;
size_t index, len_0 = 0;
while (wdir[len_0] && len_0 < (sizeof((*ctx)->entry_name) - 1))
len_0++;
len_0++;
#ifdef LP_MULTIBYTE_AVAILABLE
if (!WideCharToMultiByte
(CP_ACP, 0, (WCHAR *)wdir, len_0, (*ctx)->entry_name,
sizeof((*ctx)->entry_name), NULL, 0))
#endif
for (index = 0; index < len_0; index++)
(*ctx)->entry_name[index] = (char)wdir[index];
} else
strncpy((*ctx)->entry_name, (const char *)(*ctx)->ctx.cFileName,
sizeof((*ctx)->entry_name) - 1);
(*ctx)->entry_name[sizeof((*ctx)->entry_name) - 1] = '\0';
return (*ctx)->entry_name;
}
int LP_find_file_end(LP_DIR_CTX **ctx)
{
if (ctx != NULL && *ctx != NULL) {
FindClose((*ctx)->handle);
free(*ctx);
*ctx = NULL;
return 1;
}
errno = EINVAL;
return 0;
}
|
