polarssl: fix ALPN protocol negotiation

Correctly check for strncmp() return value (it returns 0 if the strings match).
curl · Feb 19, 2015 · 633b389 · 633b389
1 parent b723ec9
commit 633b389
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/lib/vtls/polarssl.c b/lib/vtls/polarssl.c
@@ -468,11 +468,11 @@ polarssl_connect_step2(struct connectdata *conn,
     if(next_protocol != NULL) {
       infof(data, "ALPN, server accepted to use %s\n", next_protocol);
 
-      if(strncmp(next_protocol, NGHTTP2_PROTO_VERSION_ID,
+      if(!strncmp(next_protocol, NGHTTP2_PROTO_VERSION_ID,
                   NGHTTP2_PROTO_VERSION_ID_LEN)) {
         conn->negnpn = NPN_HTTP2;
       }
-      else if(strncmp(next_protocol, ALPN_HTTP_1_1, ALPN_HTTP_1_1_LENGTH)) {
+      else if(!strncmp(next_protocol, ALPN_HTTP_1_1, ALPN_HTTP_1_1_LENGTH)) {
         conn->negnpn = NPN_HTTP1_1;
       }
     }