path: root/src
diff options
authorRich Felker <>2013-11-27 00:54:03 -0500
committerRich Felker <>2013-11-27 00:54:03 -0500
commitcabe9aa974aca34c0fda91028c770dee96ba51dc (patch)
treeb42c3cad3efd6a219047a676ebf9dcaf2008cc1b /src
parenta663c930196b50194921e7ee685d0704ac32f6f4 (diff)
reject invalid address families in getaddrinfo
subsequent code assumes the address family requested is either unspecified or one of IPv4/IPv6, and could malfunction if this constraint is not met, so other address families should be explicitly rejected.
Diffstat (limited to 'src')
1 files changed, 3 insertions, 0 deletions
diff --git a/src/network/getaddrinfo.c b/src/network/getaddrinfo.c
index e58db6cf..5d45be74 100644
--- a/src/network/getaddrinfo.c
+++ b/src/network/getaddrinfo.c
@@ -62,6 +62,9 @@ int getaddrinfo(const char *restrict host, const char *restrict serv, const stru
int result;
int cnt;
+ if (family != AF_INET && family != AF_INET6 && family != AF_UNSPEC)
+ return EAI_FAMILY;
if (host && strlen(host)>255) return EAI_NONAME;
if (serv && strlen(serv)>32) return EAI_SERVICE;