Workaround for Windows SSL (#160)

Closes #154.

Signed-off-by: Dmitry Kaukov <[email protected]>

lib/net_mosq.c

@@ -375,15 +375,20 @@ int _mosquitto_try_connect(struct mosquitto *mosq, const char *host, uint16_t po
 #ifdef WITH_TLS
 int mosquitto__socket_connect_tls(struct mosquitto *mosq)
 {
- int ret;
-
+ int ret, err;
  ret = SSL_connect(mosq->ssl);
- if(ret != 1){
- ret = SSL_get_error(mosq->ssl, ret);
- if(ret == SSL_ERROR_WANT_READ){
+ if(ret != 1) {
+ err = SSL_get_error(mosq->ssl, ret);
+#ifdef WIN32
+ if (err == SSL_ERROR_SYSCALL) {
+ mosq->want_connect = true;
+ return MOSQ_ERR_SUCCESS;
+ }
+#endif
+ if(err == SSL_ERROR_WANT_READ){
  mosq->want_connect = true;
  /* We always try to read anyway */
- }else if(ret == SSL_ERROR_WANT_WRITE){
+ }else if(err == SSL_ERROR_WANT_WRITE){
  mosq->want_write = true;
  mosq->want_connect = true;
  }else{