Module: kamailio Branch: 5.4 Commit: 5b6a77222eca4e927480ed7b18e7f233e3fdf822 URL: https://github.com/kamailio/kamailio/commit/5b6a77222eca4e927480ed7b18e7f23… Author: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Committer: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Date: 2021-03-01T18:30:47+01:00 core: early detect of empty host for check_self() (cherry picked from commit 6863cb8b0253c641146633bd063575a53bc6a466) --- Modified: src/core/forward.c --- Diff: https://github.com/kamailio/kamailio/commit/5b6a77222eca4e927480ed7b18e7f23… Patch: https://github.com/kamailio/kamailio/commit/5b6a77222eca4e927480ed7b18e7f23… --- diff --git a/src/core/forward.c b/src/core/forward.c index 716b148f2c..a7f6c06bfc 100644 --- a/src/core/forward.c +++ b/src/core/forward.c @@ -408,6 +408,13 @@ int run_check_self_func(str* host, unsigned short port, unsigned short proto) int check_self(str* host, unsigned short port, unsigned short proto) { int ret = 1; + + if(host==NULL || host->s==NULL || host->len<=0) { + /* no host (e.g., tel uri) - not matching myself */ + LM_DBG("no host value - not matching myself addresses\n"); + return 0; + } + if (grep_sock_info(host, port, proto)) { goto done; }