You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
96 lines
2.7 KiB
96 lines
2.7 KiB
/***************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* Copyright (C) 1998 - 2017, 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.
|
|
*
|
|
***************************************************************************/
|
|
/* <DESC>
|
|
* one way to set the necessary OpenSSL locking callbacks if you want to do
|
|
* multi-threaded transfers with HTTPS/FTPS with libcurl built to use OpenSSL.
|
|
* </DESC>
|
|
*/
|
|
/*
|
|
* This is not a complete stand-alone example.
|
|
*
|
|
* Author: Jeremy Brown
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <pthread.h>
|
|
#include <openssl/err.h>
|
|
|
|
#define MUTEX_TYPE pthread_mutex_t
|
|
#define MUTEX_SETUP(x) pthread_mutex_init(&(x), NULL)
|
|
#define MUTEX_CLEANUP(x) pthread_mutex_destroy(&(x))
|
|
#define MUTEX_LOCK(x) pthread_mutex_lock(&(x))
|
|
#define MUTEX_UNLOCK(x) pthread_mutex_unlock(&(x))
|
|
#define THREAD_ID pthread_self()
|
|
|
|
|
|
void handle_error(const char *file, int lineno, const char *msg)
|
|
{
|
|
fprintf(stderr, "** %s:%d %s\n", file, lineno, msg);
|
|
ERR_print_errors_fp(stderr);
|
|
/* exit(-1); */
|
|
}
|
|
|
|
/* This array will store all of the mutexes available to OpenSSL. */
|
|
static MUTEX_TYPE *mutex_buf = NULL;
|
|
|
|
static void locking_function(int mode, int n, const char *file, int line)
|
|
{
|
|
if(mode & CRYPTO_LOCK)
|
|
MUTEX_LOCK(mutex_buf[n]);
|
|
else
|
|
MUTEX_UNLOCK(mutex_buf[n]);
|
|
}
|
|
|
|
static unsigned long id_function(void)
|
|
{
|
|
return ((unsigned long)THREAD_ID);
|
|
}
|
|
|
|
int thread_setup(void)
|
|
{
|
|
int i;
|
|
|
|
mutex_buf = malloc(CRYPTO_num_locks() * sizeof(MUTEX_TYPE));
|
|
if(!mutex_buf)
|
|
return 0;
|
|
for(i = 0; i < CRYPTO_num_locks(); i++)
|
|
MUTEX_SETUP(mutex_buf[i]);
|
|
CRYPTO_set_id_callback(id_function);
|
|
CRYPTO_set_locking_callback(locking_function);
|
|
return 1;
|
|
}
|
|
|
|
int thread_cleanup(void)
|
|
{
|
|
int i;
|
|
|
|
if(!mutex_buf)
|
|
return 0;
|
|
CRYPTO_set_id_callback(NULL);
|
|
CRYPTO_set_locking_callback(NULL);
|
|
for(i = 0; i < CRYPTO_num_locks(); i++)
|
|
MUTEX_CLEANUP(mutex_buf[i]);
|
|
free(mutex_buf);
|
|
mutex_buf = NULL;
|
|
return 1;
|
|
}
|