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lib9/p9dialparse: fix segfault on gethostbyname

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In some situations, gethostbyname can
return an empty address list.

R=rsc
http://codereview.appspot.com/6443097
This commit is contained in:
David du Colombier 2012-09-11 17:11:44 +02:00
parent d4ccb0a943
commit 6f568da64e
1 changed files with 1 additions and 1 deletions
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2
src/lib9/_p9dialparse.c
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@ -109,7 +109,7 @@ p9dialparse(char *addr, char **pnet, char **punix, void *phost, int *pport)
if(strcmp(host, "*") == 0){
ss->ss_family = AF_INET6;
((struct sockaddr_in6*)ss)->sin6_addr = in6addr_any;
}else if((he = gethostbyname(host)) != nil){
}else if((he = gethostbyname(host)) != nil && he->h_addr_list[0] != nil){
ss->ss_family = he->h_addrtype;
switch(ss->ss_family){
case AF_INET: