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765e231a | 1 | /* $LP: LPlib/source/LPdir_win.c,v 1.5 2004/07/20 22:39:13 _cvs_levitte Exp $ */ |
a2400fca RL |
2 | /* |
3 | * Copyright (c) 2004, Richard Levitte <richard@levitte.org> | |
4 | * All rights reserved. | |
5 | * | |
6 | * Redistribution and use in source and binary forms, with or without | |
7 | * modification, are permitted provided that the following conditions | |
8 | * are met: | |
9 | * 1. Redistributions of source code must retain the above copyright | |
10 | * notice, this list of conditions and the following disclaimer. | |
11 | * 2. Redistributions in binary form must reproduce the above copyright | |
12 | * notice, this list of conditions and the following disclaimer in the | |
13 | * documentation and/or other materials provided with the distribution. | |
14 | * | |
15 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
16 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
17 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
18 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
19 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
20 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
21 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
22 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
23 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
24 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
25 | * SUCH DAMAGE. | |
26 | */ | |
27 | #include <windows.h> | |
64ba6cf2 | 28 | #include <tchar.h> |
a2400fca RL |
29 | #ifndef LPDIR_H |
30 | #include "LPdir.h" | |
31 | #endif | |
32 | ||
765e231a RL |
33 | /* It seems like WinCE doesn't always have the "normal" mapping |
34 | macros. We're opting for the UNICODE ones. */ | |
35 | #if defined(LP_SYS_WINCE) && !defined(FindFirstFile) | |
36 | # define FindFirstFile FindFirstFileW | |
37 | #endif | |
38 | ||
a2400fca RL |
39 | struct LP_dir_context_st |
40 | { | |
41 | WIN32_FIND_DATA ctx; | |
42 | HANDLE handle; | |
43 | char entry_name[NAME_MAX+1]; | |
44 | }; | |
45 | ||
46 | const char *LP_find_file(LP_DIR_CTX **ctx, const char *directory) | |
47 | { | |
48 | struct dirent *direntry = NULL; | |
49 | ||
50 | if (ctx == NULL || directory == NULL) | |
51 | { | |
52 | errno = EINVAL; | |
53 | return 0; | |
54 | } | |
55 | ||
56 | errno = 0; | |
57 | if (*ctx == NULL) | |
58 | { | |
59 | *ctx = (LP_DIR_CTX *)malloc(sizeof(LP_DIR_CTX)); | |
60 | if (*ctx == NULL) | |
61 | { | |
62 | errno = ENOMEM; | |
a2400fca RL |
63 | return 0; |
64 | } | |
65 | memset(*ctx, '\0', sizeof(LP_DIR_CTX)); | |
66 | ||
64ba6cf2 RL |
67 | if (sizeof(TCHAR) != sizeof(char)) |
68 | { | |
69 | TCHAR *wdir = NULL; | |
765e231a | 70 | size_t index = 0,len = strlen(direcory); |
a2400fca | 71 | |
64ba6cf2 RL |
72 | wdir = (TCHAR *)malloc((len + 1) * sizeof(TCHAR)); |
73 | if (wdir == NULL) | |
74 | { | |
64ba6cf2 | 75 | free(*ctx); |
765e231a RL |
76 | *ctx = NULL; |
77 | errno = ENOMEM; | |
64ba6cf2 RL |
78 | return 0; |
79 | } | |
a2400fca | 80 | |
64ba6cf2 | 81 | #ifdef LP_MULTIBYTE_AVAILABLE |
765e231a | 82 | if (!MultiByteToWideChar(CP_ACP, 0, directory, len, wdir, len + 1)) |
64ba6cf2 RL |
83 | #endif |
84 | for (index = 0; index < strlen(directory) + 1; index++) | |
85 | wdir[index] = (TCHAR)directory[index]; | |
a2400fca | 86 | |
64ba6cf2 | 87 | (*ctx)->handle = FindFirstFile(wdir, &(*ctx)->ctx); |
a2400fca | 88 | |
64ba6cf2 RL |
89 | free(wdir); |
90 | } | |
91 | else | |
92 | (*ctx)->handle = FindFirstFile(directory, &(*ctx)->ctx); | |
a2400fca RL |
93 | |
94 | if ((*ctx)->handle == INVALID_HANDLE_VALUE) | |
95 | { | |
96 | free(*ctx); | |
97 | *ctx = NULL; | |
98 | errno = EINVAL; | |
99 | return 0; | |
100 | } | |
101 | } | |
102 | else | |
103 | { | |
104 | if (FindNextFile((*ctx)->handle, (*ctx)->ctx) == FALSE) | |
105 | { | |
106 | return 0; | |
107 | } | |
108 | } | |
109 | ||
64ba6cf2 RL |
110 | if (sizeof(TCHAR) != sizeof(char)) |
111 | { | |
765e231a RL |
112 | TCHAR *wdir = (*ctx)->ctx.cFileName; |
113 | size_t index, len; | |
64ba6cf2 | 114 | |
765e231a | 115 | for (len = 0; wdir[len] && len < (sizeof((*ctx)->entry_name) - 1);) |
64ba6cf2 RL |
116 | len++; |
117 | ||
118 | #ifdef LP_MULTIBYTE_AVAILABLE | |
765e231a RL |
119 | if (!WideCharToMultiByte(CP_ACP, 0, wdir, len, (*ctx)->entry_name, |
120 | sizeof((*ctx)->entry_name) - 1, NULL, 0)) | |
64ba6cf2 | 121 | #endif |
765e231a RL |
122 | for (index = 0; index < len; index++) |
123 | (*ctx)->entry_name[index] = (char)wdir[index]; | |
64ba6cf2 RL |
124 | } |
125 | else | |
126 | strncpy((*ctx)->entry_name, (*ctx)->ctx.cFileName, | |
127 | sizeof((*ctx)->entry_name)-1); | |
128 | ||
129 | (*ctx)->entry_name[sizeof((*ctx)->entry_name)-1] = '\0'; | |
130 | ||
a2400fca RL |
131 | return (*ctx)->entry_name; |
132 | } | |
133 | ||
134 | int LP_find_file_end(LP_DIR_CTX **ctx) | |
135 | { | |
136 | if (ctx != NULL && *ctx != NULL) | |
137 | { | |
138 | FindClose((*ctx)->handle); | |
139 | free(*ctx); | |
765e231a | 140 | *ctx = NULL; |
a2400fca RL |
141 | return 1; |
142 | } | |
143 | errno = EINVAL; | |
144 | return 0; | |
145 | } |