From: Guus Sliepen <guus@meshlink.io>
Date: Tue, 20 Nov 2018 14:58:41 +0000 (+0100)
Subject: Fix socket leak every time meshlink_invite() is called.
X-Git-Url: http://git.meshlink.io/?p=meshlink;a=commitdiff_plain;h=c99339abe31cf11172fe5f903d70884336272513

Fix socket leak every time meshlink_invite() is called.

getlocaladdrname() would leak a socket every time it was called, which is
twice for every call to meshlink_invite() using the default flags.
---

diff --git a/src/meshlink.c b/src/meshlink.c
index 8da56922..1bb403f3 100644
--- a/src/meshlink.c
+++ b/src/meshlink.c
@@ -226,6 +226,7 @@ static bool getlocaladdrname(char *destaddr, char *host, socklen_t hostlen) {
 	}
 
 	if(connect(sock, rai->ai_addr, rai->ai_addrlen) && !sockwouldblock(errno)) {
+		closesocket(sock);
 		freeaddrinfo(rai);
 		return false;
 	}
@@ -236,9 +237,12 @@ static bool getlocaladdrname(char *destaddr, char *host, socklen_t hostlen) {
 	socklen_t sl = sizeof(sn);
 
 	if(getsockname(sock, (struct sockaddr *)&sn, &sl)) {
+		closesocket(sock);
 		return false;
 	}
 
+	closesocket(sock);
+
 	if(getnameinfo((struct sockaddr *)&sn, sl, host, hostlen, NULL, 0, NI_NUMERICHOST | NI_NUMERICSERV)) {
 		return false;
 	}