CONTRIB-2513 Update contrib/libs/curl to 7.77.0

ref:88dc545867909534adecc7502c44301cabf1a899

1 files changed, 4 insertions, 3 deletions

diff --git a/contrib/libs/curl/lib/tftp.c b/contrib/libs/curl/lib/tftp.c
index 76d3ff4515..11150af361 100644
--- a/contrib/libs/curl/lib/tftp.c
+++ b/contrib/libs/curl/lib/tftp.c
@@ -182,6 +182,7 @@ const struct Curl_handler Curl_handler_tftp = {
   tftp_disconnect,                      /* disconnect */
   ZERO_NULL,                            /* readwrite */
   ZERO_NULL,                            /* connection_check */
+  ZERO_NULL,                            /* attach connection */
   PORT_TFTP,                            /* defport */
   CURLPROTO_TFTP,                       /* protocol */
   CURLPROTO_TFTP,                       /* family */
@@ -319,7 +320,7 @@ static CURLcode tftp_parse_option_ack(struct tftp_state_data *state,
     const char *option, *value;
 
     tmp = tftp_option_get(tmp, ptr + len - tmp, &option, &value);
-    if(tmp == NULL) {
+    if(!tmp) {
       failf(data, "Malformed ACK packet, rejecting");
       return CURLE_TFTP_ILLEGAL;
     }
@@ -776,7 +777,7 @@ static CURLcode tftp_tx(struct tftp_state_data *state, tftp_event_t event)
         return result;
       state->sbytes += (int)cb;
       state->data->req.upload_fromhere += cb;
-    } while(state->sbytes < state->blksize && cb != 0);
+    } while(state->sbytes < state->blksize && cb);
 
     sbytes = sendto(state->sockfd, (void *) state->spacket.data,
                     4 + state->sbytes, SEND_4TH_ARG,
@@ -1256,7 +1257,7 @@ static CURLcode tftp_multi_statemach(struct Curl_easy *data, bool *done)
       failf(data, "%s", Curl_strerror(error, buffer, sizeof(buffer)));
       state->event = TFTP_EVENT_ERROR;
     }
-    else if(rc != 0) {
+    else if(rc) {
       result = tftp_receive_packet(data);
       if(result)
         return result;