make use of MSG_CONFIRM optional

since MSG_CONFIRM is a linux thing and only available on linux kernels >= 2.3.15, see send(2)

1 files changed, 5 insertions, 0 deletions

diff --git a/plugins-root/check_icmp.c b/plugins-root/check_icmp.c
index 3982def9..f4208371 100644
--- a/plugins-root/check_icmp.c
+++ b/plugins-root/check_icmp.c
@@ -880,7 +880,12 @@ send_icmp_ping(int sock, struct rta_host *host)
         hdr.msg_iov = &iov;
         hdr.msg_iovlen = 1;
 
+/* MSG_CONFIRM is a linux thing and only available on linux kernels >= 2.3.15, see send(2) */
+#ifdef MSG_CONFIRM
         len = sendmsg(sock, &hdr, MSG_CONFIRM);
+#else
+        len = sendmsg(sock, &hdr, 0);
+#endif
 
         if(len < 0 || (unsigned int)len != icmp_pkt_size) {
                 if(debug) printf("Failed to send ping to %s\n",