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--- mcgroup.c.orig 2016-02-17 21:02:06 UTC
+++ mcgroup.c
@@ -54,11 +54,23 @@ static struct iface *find_valid_iface(co
static void mcgroup4_init(void)
{
if (mcgroup4_socket < 0) {
+#ifdef SOCK_CLOEXEC
mcgroup4_socket = socket(AF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
+#else
+ mcgroup4_socket = socket(AF_INET, SOCK_DGRAM, 0);
+#endif
if (mcgroup4_socket < 0) {
smclog(LOG_ERR, "Failed creating socket for joining IPv4 multicast groups: %m");
exit(255);
}
+#ifndef SOCK_CLOEXEC
+ if (fcntl(mcgroup4_socket, F_SETFD, FD_CLOEXEC) < 0) {
+ smclog(LOG_WARNING, "Failed creating socket for joining IPv4 multicast groups: %m");
+ close(mcgroup4_socket);
+ mcgroup4_socket = -1;
+ return;
+ }
+#endif
#ifdef __linux__
if (setsockopt(mcgroup4_socket, SOL_SOCKET, SO_ATTACH_FILTER, &fprog, sizeof(fprog)) < 0)
@@ -132,11 +144,23 @@ static int mcgroup6_socket = -1;
static void mcgroup6_init(void)
{
if (mcgroup6_socket < 0) {
+#ifdef SOCK_CLOEXEC
mcgroup6_socket = socket(AF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, IPPROTO_UDP);
+#else
+ mcgroup6_socket = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP);
+#endif
if (mcgroup6_socket < 0) {
smclog(LOG_WARNING, "Failed creating socket for joining IPv6 multicast groups: %m");
return;
}
+#ifndef SOCK_CLOEXEC
+ if (fcntl(mcgroup6_socket, F_SETFD, FD_CLOEXEC) < 0) {
+ smclog(LOG_WARNING, "Failed creating socket for joining IPv6 multicast groups: %m");
+ close(mcgroup6_socket);
+ mcgroup6_socket = -1;
+ return;
+ }
+#endif
#ifdef __linux__
if (setsockopt(mcgroup6_socket, SOL_SOCKET, SO_ATTACH_FILTER, &fprog, sizeof(fprog)) < 0)
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