http: ignore empty lines before HTTP response

Fixes HTTP keepalive issues with some servers

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

diff --git a/uclient-http.c b/uclient-http.c
index 47c890fca689cd0457108725b5ac91098d59142a..4633956e63519e637749e9a82efb195f34eb6a4d 100644 (file)
--- a/uclient-http.c
+++ b/uclient-http.c
@@ -552,6 +552,9 @@ static void uclient_parse_http_line(struct uclient_http *uh, char *data)
        if (uh->state == HTTP_STATE_REQUEST_DONE) {
                char *code;
 
+               if (!strlen(data))
+                       return;
+
                /* HTTP/1.1 */
                strsep(&data, " ");