--- thttpd-2.25b/libhttpd.c 2003-12-25 20:06:05.000000000 +0100 +++ thttpd-2.25b-patched/libhttpd.c 2005-01-09 00:26:04.867255248 +0100 @@ -2207,6 +2207,12 @@ if ( strcasecmp( cp, "keep-alive" ) == 0 ) hc->keep_alive = 1; } + else if ( strncasecmp( buf, "X-Forwarded-For:", 16 ) == 0 ) + { // Use real IP if available + cp = &buf[16]; + cp += strspn( cp, " \t" ); + inet_aton( cp, &(hc->client_addr.sa_in.sin_addr) ); + } #ifdef LOG_UNKNOWN_HEADERS else if ( strncasecmp( buf, "Accept-Charset:", 15 ) == 0 || strncasecmp( buf, "Accept-Language:", 16 ) == 0 ||