X-Git-Url: https://git.tcpdump.org/libpcap/blobdiff_plain/a463e82f5f0152c3c0d7cf1ebfa56d9b099f7fee..c51bcb501fb82b27dfea7eb29be9144b7d3eb22b:/sockutils.c

diff --git a/sockutils.c b/sockutils.c
index 4bb97a71..11e50737 100644
--- a/sockutils.c
+++ b/sockutils.c
@@ -346,6 +346,18 @@ SOCKET sock_open(struct addrinfo *addrinfo, int server, int nconn, char *errbuf,
 	/* This is a server socket */
 	if (server)
 	{
+		/*
+		 * Allow a new server to bind the socket after the old one exited,
+		 * even if lingering sockets are still present.
+		 */
+		int optval = 1;
+		if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval)) < 0)
+		{
+			sock_geterror("socket(): ", errbuf, errbuflen);
+			/* dont treat an error as a failure */
+			SOCK_DEBUG_MESSAGE(errbuf);
+		}
+
 #if defined(IPV6_V6ONLY) || defined(IPV6_BINDV6ONLY)
 		/*
 		 * Force the use of IPv6-only addresses.