Mercurial > embed
comparison libzip/lib/zip_source_win32a.c @ 4:2306f4b04790
libzip: import 1.1.2
author | David Demelier <markand@malikania.fr> |
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date | Wed, 24 Feb 2016 21:19:28 +0100 |
parents | |
children | 056ee6b5913e |
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3:543b0653ea27 | 4:2306f4b04790 |
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1 /* | |
2 zip_source_win32a.c -- create data source from Windows file (ANSI) | |
3 Copyright (C) 1999-2016 Dieter Baron and Thomas Klausner | |
4 | |
5 This file is part of libzip, a library to manipulate ZIP archives. | |
6 The authors can be contacted at <libzip@nih.at> | |
7 | |
8 Redistribution and use in source and binary forms, with or without | |
9 modification, are permitted provided that the following conditions | |
10 are met: | |
11 1. Redistributions of source code must retain the above copyright | |
12 notice, this list of conditions and the following disclaimer. | |
13 2. Redistributions in binary form must reproduce the above copyright | |
14 notice, this list of conditions and the following disclaimer in | |
15 the documentation and/or other materials provided with the | |
16 distribution. | |
17 3. The names of the authors may not be used to endorse or promote | |
18 products derived from this software without specific prior | |
19 written permission. | |
20 | |
21 THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS | |
22 OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
23 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY | |
25 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
26 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE | |
27 GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
28 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER | |
29 IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | |
30 OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN | |
31 IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
32 */ | |
33 | |
34 | |
35 #include <stdio.h> | |
36 | |
37 #include "zipint.h" | |
38 #include "zipwin32.h" | |
39 | |
40 static void * _win32_strdup_a(const void *str); | |
41 static HANDLE _win32_open_a(_zip_source_win32_read_file_t *ctx); | |
42 static HANDLE _win32_create_temp_a(_zip_source_win32_read_file_t *ctx, void **temp, zip_uint32_t value, PSECURITY_ATTRIBUTES sa); | |
43 static int _win32_rename_temp_a(_zip_source_win32_read_file_t *ctx); | |
44 static int _win32_remove_a(const void *fname); | |
45 | |
46 static _zip_source_win32_file_ops_t win32_ops_a = { | |
47 _win32_strdup_a, | |
48 _win32_open_a, | |
49 _win32_create_temp_a, | |
50 _win32_rename_temp_a, | |
51 _win32_remove_a | |
52 }; | |
53 | |
54 ZIP_EXTERN zip_source_t * | |
55 zip_source_win32a(zip_t *za, const char *fname, zip_uint64_t start, zip_int64_t len) | |
56 { | |
57 if (za == NULL) | |
58 return NULL; | |
59 | |
60 return zip_source_win32a_create(fname, start, len, &za->error); | |
61 } | |
62 | |
63 | |
64 ZIP_EXTERN zip_source_t * | |
65 zip_source_win32a_create(const char *fname, zip_uint64_t start, zip_int64_t length, zip_error_t *error) | |
66 { | |
67 if (fname == NULL || length < -1) { | |
68 zip_error_set(error, ZIP_ER_INVAL, 0); | |
69 return NULL; | |
70 } | |
71 | |
72 return _zip_source_win32_handle_or_name(fname, INVALID_HANDLE_VALUE, start, length, 1, NULL, &win32_ops_a, error); | |
73 } | |
74 | |
75 | |
76 static void * | |
77 _win32_strdup_a(const void *str) | |
78 { | |
79 return strdup((const char *)str); | |
80 } | |
81 | |
82 | |
83 static HANDLE | |
84 _win32_open_a(_zip_source_win32_read_file_t *ctx) | |
85 { | |
86 return CreateFileA(ctx->fname, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); | |
87 } | |
88 | |
89 | |
90 static HANDLE | |
91 _win32_create_temp_a(_zip_source_win32_read_file_t *ctx, void **temp, zip_uint32_t value, PSECURITY_ATTRIBUTES sa) | |
92 { | |
93 int len; | |
94 | |
95 len = strlen((const char *)ctx->fname) + 10; | |
96 if (*temp == NULL) { | |
97 if ((*temp = malloc(sizeof(char) * len)) == NULL) { | |
98 zip_error_set(&ctx->error, ZIP_ER_MEMORY, 0); | |
99 return INVALID_HANDLE_VALUE; | |
100 } | |
101 } | |
102 if (sprintf((char *)*temp, "%s.%08x", (const char *)ctx->fname, value) != len - 1) { | |
103 return INVALID_HANDLE_VALUE; | |
104 } | |
105 | |
106 return CreateFileA((const char *)*temp, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ, sa, CREATE_NEW, FILE_ATTRIBUTE_NORMAL | FILE_ATTRIBUTE_TEMPORARY, NULL); | |
107 } | |
108 | |
109 | |
110 static int | |
111 _win32_rename_temp_a(_zip_source_win32_read_file_t *ctx) | |
112 { | |
113 if (!MoveFileExA(ctx->tmpname, ctx->fname, MOVEFILE_REPLACE_EXISTING)) | |
114 return -1; | |
115 return 0; | |
116 } | |
117 | |
118 | |
119 static int | |
120 _win32_remove_a(const void *fname) | |
121 { | |
122 DeleteFileA((const char *)fname); | |
123 return 0; | |
124 } |