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reject invalid address families in getaddrinfo

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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.
This commit is contained in:
Rich Felker
2013-11-27 00:54:03 -05:00
parent a663c93019
commit cabe9aa974
1 changed files with 3 additions and 0 deletions
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3
src/network/getaddrinfo.c
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@@ -62,6 +62,9 @@ int getaddrinfo(const char *restrict host, const char *restrict serv, const stru
int result; int result;
int cnt; int cnt;
if (family != AF_INET && family != AF_INET6 && family != AF_UNSPEC)
return EAI_FAMILY;
if (host && strlen(host)>255) return EAI_NONAME; if (host && strlen(host)>255) return EAI_NONAME;
if (serv && strlen(serv)>32) return EAI_SERVICE; if (serv && strlen(serv)>32) return EAI_SERVICE;