| #ifndef HEADER_CURL_TOOL_METALINK_H |
| #define HEADER_CURL_TOOL_METALINK_H |
| /*************************************************************************** |
| * _ _ ____ _ |
| * Project ___| | | | _ \| | |
| * / __| | | | |_) | | |
| * | (__| |_| | _ <| |___ |
| * \___|\___/|_| \_\_____| |
| * |
| * Copyright (C) 1998 - 2014, 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 http://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" |
| |
| struct GlobalConfig; |
| struct OperationConfig; |
| |
| /* returns 1 for success, 0 otherwise (we use OpenSSL *_Init fncs directly) */ |
| typedef int (* Curl_digest_init_func)(void *context); |
| |
| typedef void (* Curl_digest_update_func)(void *context, |
| const unsigned char *data, |
| unsigned int len); |
| typedef void (* Curl_digest_final_func)(unsigned char *result, void *context); |
| |
| typedef struct { |
| Curl_digest_init_func digest_init; /* Initialize context procedure */ |
| Curl_digest_update_func digest_update; /* Update context with data */ |
| Curl_digest_final_func digest_final; /* Get final result procedure */ |
| unsigned int digest_ctxtsize; /* Context structure size */ |
| unsigned int digest_resultlen; /* Result length (bytes) */ |
| } digest_params; |
| |
| typedef struct { |
| const digest_params *digest_hash; /* Hash function definition */ |
| void *digest_hashctx; /* Hash function context */ |
| } digest_context; |
| |
| digest_context * Curl_digest_init(const digest_params *dparams); |
| int Curl_digest_update(digest_context *context, |
| const unsigned char *data, |
| unsigned int len); |
| int Curl_digest_final(digest_context *context, unsigned char *result); |
| |
| typedef struct { |
| const char *hash_name; |
| const digest_params *dparams; |
| } metalink_digest_def; |
| |
| typedef struct { |
| const char *alias_name; |
| const metalink_digest_def *digest_def; |
| } metalink_digest_alias; |
| |
| typedef struct metalink_checksum { |
| const metalink_digest_def *digest_def; |
| /* raw digest value, not ascii hex digest */ |
| unsigned char *digest; |
| } metalink_checksum; |
| |
| typedef struct metalink_resource { |
| struct metalink_resource *next; |
| char *url; |
| } metalink_resource; |
| |
| typedef struct metalinkfile { |
| struct metalinkfile *next; |
| char *filename; |
| metalink_checksum *checksum; |
| metalink_resource *resource; |
| } metalinkfile; |
| |
| #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 digest_params MD5_DIGEST_PARAMS[1]; |
| extern const digest_params SHA1_DIGEST_PARAMS[1]; |
| extern const digest_params SHA256_DIGEST_PARAMS[1]; |
| |
| #include <metalink/metalink.h> |
| |
| /* |
| * Counts the resource in the metalinkfile. |
| */ |
| int count_next_metalink_resource(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, |
| 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 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 */ |