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Use pthread_once(3) to initialize openssl/libressl just once.

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Fixes openssl initialization concurrently by multiple threads.
Close #167
This commit is contained in:
Juan RP
2016-04-22 11:32:34 +02:00
parent 2434b90d6e
commit 228a89d51e
2 changed files with 18 additions and 5 deletions
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20
lib/fetch/common.c
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@ -934,8 +934,22 @@ fetch_ssl_cb_verify_crt(int verified, X509_STORE_CTX *ctx)
return (verified);
}
#include <pthread.h>
static pthread_once_t ssl_init_once = PTHREAD_ONCE_INIT;
static void
ssl_init(void)
{
/* Init the SSL library and context */
if (!SSL_library_init()){
fprintf(stderr, "SSL library init failed\n");
exit(-1);
}
}
#endif
/*
* Enable SSL on a connection.
*/
@ -948,11 +962,7 @@ fetch_ssl(conn_t *conn, const struct url *URL, int verbose)
X509_NAME *name;
char *str;
/* Init the SSL library and context */
if (!SSL_library_init()){
fprintf(stderr, "SSL library init failed\n");
return (-1);
}
(void)pthread_once(&ssl_init_once, ssl_init);
SSL_load_error_strings();