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
155
156
157
158
159
160
161
162
163
164
165
|
#ifndef HEADER_CURL_TOOL_METALINK_H
#define HEADER_CURL_TOOL_METALINK_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "tool_setup.h"
#include "tool_sdecls.h"
struct GlobalConfig;
struct OperationConfig;
/* returns 1 for success, 0 otherwise (we use OpenSSL *_Init fncs directly) */
typedef int (*digest_init_func)(void *context);
typedef void (*digest_update_func)(void *context,
const unsigned char *data,
unsigned int len);
typedef void (*digest_final_func)(unsigned char *result, void *context);
struct digest_params {
digest_init_func digest_init; /* Initialize context procedure */
digest_update_func digest_update; /* Update context with data */
digest_final_func digest_final; /* Get final result procedure */
unsigned int digest_ctxtsize; /* Context structure size */
unsigned int digest_resultlen; /* Result length (bytes) */
};
struct digest_context {
const struct digest_params *digest_hash; /* Hash function definition */
void *digest_hashctx; /* Hash function context */
};
struct metalink_digest_def {
const char *hash_name;
const struct digest_params *dparams;
};
struct metalink_digest_alias {
const char *alias_name;
const struct metalink_digest_def *digest_def;
};
struct metalink_checksum {
const struct metalink_digest_def *digest_def;
/* raw digest value, not ascii hex digest */
unsigned char *digest;
};
struct metalink_resource {
struct metalink_resource *next;
char *url;
};
struct metalinkfile {
struct metalinkfile *next;
char *filename;
struct metalink_checksum *checksum;
struct metalink_resource *resource;
};
#ifdef USE_METALINK
/*
* curl requires libmetalink 0.1.0 or newer
*/
#define CURL_REQ_LIBMETALINK_MAJOR 0
#define CURL_REQ_LIBMETALINK_MINOR 1
#define CURL_REQ_LIBMETALINK_PATCH 0
#define CURL_REQ_LIBMETALINK_VERS ((CURL_REQ_LIBMETALINK_MAJOR * 10000) + \
(CURL_REQ_LIBMETALINK_MINOR * 100) + \
CURL_REQ_LIBMETALINK_PATCH)
extern const struct digest_params MD5_DIGEST_PARAMS[1];
extern const struct digest_params SHA1_DIGEST_PARAMS[1];
extern const struct digest_params SHA256_DIGEST_PARAMS[1];
#include <metalink/metalink.h>
/*
* Counts the resource in the metalinkfile.
*/
int count_next_metalink_resource(struct metalinkfile *mlfile);
void delete_metalinkfile(struct metalinkfile *mlfile);
void clean_metalink(struct OperationConfig *config);
/*
* Performs final parse operation and extracts information from
* Metalink and creates metalinkfile structs.
*
* This function returns 0 if it succeeds without warnings, or one of
* the following negative error codes:
*
* -1: Parsing failed; or no file is found
* -2: Parsing succeeded with some warnings.
*/
int parse_metalink(struct OperationConfig *config, struct OutStruct *outs,
const char *metalink_url);
/*
* Callback function for CURLOPT_WRITEFUNCTION
*/
size_t metalink_write_cb(void *buffer, size_t sz, size_t nmemb,
void *userdata);
/*
* Returns nonzero if content_type includes "application/metalink+xml"
* media-type. The check is done in case-insensitive manner.
*/
int check_metalink_content_type(const char *content_type);
/*
* Check checksum of file denoted by filename.
*
* This function returns 1 if the checksum matches or one of the
* following integers:
*
* 0:
* Checksum didn't match.
* -1:
* Could not open file; or could not read data from file.
* -2:
* No checksum in Metalink supported, hash algorithm not available, or
* Metalink does not contain checksum.
*/
int metalink_check_hash(struct GlobalConfig *config,
struct metalinkfile *mlfile,
const char *filename);
/*
* Release resources allocated at global scope.
*/
void metalink_cleanup(void);
#else /* USE_METALINK */
#define count_next_metalink_resource(x) 0
#define delete_metalinkfile(x) (void)x
#define clean_metalink(x) (void)x
/* metalink_cleanup() takes no arguments */
#define metalink_cleanup() Curl_nop_stmt
#endif /* USE_METALINK */
#endif /* HEADER_CURL_TOOL_METALINK_H */
|
