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Retry dhcp6 ping on interrupts

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Error: CHECKED_RETURN (CWE-252): [#def35]
dnsmasq-2.86test7/src/dhcp6.c:295: check_return: Calling "sendto(dnsmasq_daemon->icmp6fd, &neigh, 24UL, 0, __CONST_SOCKADDR_ARG({.__sockaddr__ = &addr.sa}), 28U)" without checking return value. This library function may fail and return an error code.
 #  293|   	break;
 #  294|
 #  295|->       sendto(daemon->icmp6fd, &neigh, sizeof(neigh), 0, &addr.sa, sizeof(addr));
 #  296|
 #  297|         ts.tv_sec = 0;
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Petr Menšík authored and Simon Kelley committed 2021-09-11 21:36:30 +01:00
1 parent fc522515b9
commit 1e6565c1a5
1 file changed
+1 -1
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src/dhcp6.c
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@@ -292,7 +292,7 @@ void get_client_mac(struct in6_addr *client, int iface, unsigned char *mac, unsi
if ((maclen = find_mac(&addr, mac, 0, now)) != 0)
break;
sendto(daemon->icmp6fd, &neigh, sizeof(neigh), 0, &addr.sa, sizeof(addr));
while(retry_send(sendto(daemon->icmp6fd, &neigh, sizeof(neigh), 0, &addr.sa, sizeof(addr))));
ts.tv_sec = 0;
ts.tv_nsec = 100000000; /* 100ms */