| /* |
| Copyright (C) 2006 Werner Dittmann |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place, Boston, MA 02111. |
| */ |
| |
| #include <stdio.h> |
| |
| #include <stdlib.h> |
| #include <pthread.h> |
| #include <errno.h> |
| #include <gcrypt.h> |
| |
| /* |
| * The following macro was copied from gcrypt.h and modified to explicitly |
| * cast the pointer types to keep the compiler happy. |
| */ |
| #define GCRY_THREAD_OPTION_PTHREAD_CPP_IMPL \ |
| static int gcry_pthread_mutex_init (void **priv) \ |
| { \ |
| int err = 0; \ |
| pthread_mutex_t *lock = (pthread_mutex_t *)malloc (sizeof (pthread_mutex_t)); \ |
| \ |
| if (!lock) \ |
| err = ENOMEM; \ |
| if (!err) \ |
| { \ |
| err = pthread_mutex_init (lock, NULL); \ |
| if (err) \ |
| free (lock); \ |
| else \ |
| *priv = lock; \ |
| } \ |
| return err; \ |
| } \ |
| static int gcry_pthread_mutex_destroy (void **lock) \ |
| { int err = pthread_mutex_destroy ((pthread_mutex_t *)*lock); free (*lock); return err; } \ |
| static int gcry_pthread_mutex_lock (void **lock) \ |
| { return pthread_mutex_lock ((pthread_mutex_t *)*lock); } \ |
| static int gcry_pthread_mutex_unlock (void **lock) \ |
| { return pthread_mutex_unlock ((pthread_mutex_t *)*lock); } \ |
| \ |
| static struct gcry_thread_cbs gcry_threads_pthread = \ |
| { GCRY_THREAD_OPTION_PTHREAD, NULL, \ |
| gcry_pthread_mutex_init, gcry_pthread_mutex_destroy, \ |
| gcry_pthread_mutex_lock, gcry_pthread_mutex_unlock } |
| |
| /** Implement the locking callback functions for libgcrypt. |
| * |
| */ |
| |
| static int initialized = 0; |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| GCRY_THREAD_OPTION_PTHREAD_CPP_IMPL; |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| int initializeGcrypt () |
| { |
| |
| if (initialized) { |
| return 1; |
| } |
| gcry_control(GCRYCTL_SET_THREAD_CBS, &gcry_threads_pthread); |
| gcry_check_version(NULL); |
| gcry_control(GCRYCTL_DISABLE_SECMEM); |
| initialized = 1; |
| return 1; |
| } |