X-Git-Url: https://ruderich.org/simon/gitweb/?a=blobdiff_plain;f=src%2Ftlsproxy.c;h=8b9b6d92e1bb3309010b54a7240900a23419268c;hb=8c4ae426c578d53c7afcbcbc178c96a7da3614c2;hp=ee65febba68ef14445effc63d32851660b3cadef;hpb=3eebfbd0b124c034d57e9ddba051e82fe99ba05f;p=tlsproxy%2Ftlsproxy.git

diff --git a/src/tlsproxy.c b/src/tlsproxy.c
index ee65feb..8b9b6d9 100644
--- a/src/tlsproxy.c
+++ b/src/tlsproxy.c
@@ -375,7 +375,7 @@ static void initialize_gnutls(void) {
     gnutls_datum_t dh_parameters_datum;
 
 /* Recent versions of GnuTLS automatically initialize the cryptography layer
- * in gnutls_global_init(). */
+ * in gnutls_global_init(), including a thread-safe setup. */
 #if GNUTLS_VERSION_NUMBER <= 0x020b00
     gcry_error_t error;
 
@@ -395,6 +395,12 @@ static void initialize_gnutls(void) {
     }
 #endif
 
+    if (gnutls_check_version(GNUTLS_VERSION) == NULL) {
+        fprintf(stderr, "gnutls_check_version(): version mismatch, "
+                        "expected at least '" GNUTLS_VERSION "'\n");
+        exit(EXIT_FAILURE);
+    }
+
     /* Initialize GnuTLS. */
     result = gnutls_global_init();
     GNUTLS_ERROR_EXIT(result, "gnutls_global_init()");