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check the value of s

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(cherry picked from commit 28f344c18a)
This commit is contained in:
Mark Andrews 2016-11-15 16:51:36 +11:00
parent fec9998849
commit 1b4fe21a54
1 changed files with 6 additions and 4 deletions
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10
bin/tests/system/feature-test.c
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@ -189,14 +189,16 @@ main(int argc, char **argv) {
return (0);
#elif defined(IPPROTO_IPV6) && defined(IPV6_V6ONLY)
int s;
int n;
int n = -1;
int v6only = -1;
ISC_SOCKADDR_LEN_T len = sizeof(v6only);
s = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP);
n = getsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY,
(void *)&v6only, &len);
close(s);
if (s >= 0) {
n = getsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY,
(void *)&v6only, &len);
close(s);
}
return ((n == 0 && v6only == 0) ? 0 : 1);
#else
return (1);