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-rw-r--r--options.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/options.c b/options.c
index 5f1efc5..6d3ef8e 100644
--- a/options.c
+++ b/options.c
@@ -4258,7 +4258,7 @@ add_option (struct options *options,
VERIFY_PERMISSION (OPT_P_GENERAL|OPT_P_CONNECTION);
port = atoi (p[1]);
- if (!legal_ipv4_port (port))
+ if ((port != 0) && !legal_ipv4_port (port))
{
msg (msglevel, "Bad local port number: %s", p[1]);
goto err;