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
|
/* $LP: LPlib/source/LPdir_win.c,v 1.10 2004/08/26 13:36:05 _cvs_levitte Exp $ */
/*
* Copyright (c) 2004, Richard Levitte <richard@levitte.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#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(FindFirstFile)
# 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)
{
*ctx = (LP_DIR_CTX *)malloc(sizeof(LP_DIR_CTX));
if (*ctx == NULL)
{
errno = ENOMEM;
return 0;
}
memset(*ctx, '\0', sizeof(LP_DIR_CTX));
if (sizeof(TCHAR) != sizeof(char))
{
TCHAR *wdir = NULL;
/* len_0 denotes string length *with* trailing 0 */
size_t index = 0,len_0 = strlen(directory) + 1;
wdir = (TCHAR *)malloc(len_0 * sizeof(TCHAR));
if (wdir == NULL)
{
free(*ctx);
*ctx = NULL;
errno = ENOMEM;
return 0;
}
#ifdef LP_MULTIBYTE_AVAILABLE
if (!MultiByteToWideChar(CP_ACP, 0, directory, len_0, (WCHAR *)wdir, len_0))
#endif
for (index = 0; index < len_0; index++)
wdir[index] = (TCHAR)directory[index];
(*ctx)->handle = FindFirstFile(wdir, &(*ctx)->ctx);
free(wdir);
}
else
(*ctx)->handle = FindFirstFile((TCHAR *)directory, &(*ctx)->ctx);
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;
}
|