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Staging: hv: util: kvp: Cleanup kvp_get_domain_name() 

Cleanup kvp_get_domain_name(). If getaddrinfo() fails, deal with it properly
(this can happen if no IP address has been assigned). Also, don't specify
a specific service in the call to getaddrinfo() to make this code as generic
as possible. Lastly, move the call to gethostname() after the local variables.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
wifi-calibration
K. Y. Srinivasan 2011-07-26 11:03:10 -07:00 committed by Greg Kroah-Hartman
parent e54bbc6471
commit 5be528c213
1 changed files with 3 additions and 5 deletions
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8
drivers/staging/hv/tools/hv_kvp_daemon.c
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@ -273,22 +273,20 @@ static int
kvp_get_domain_name(char *buffer, int length)
{
struct addrinfo hints, *info ;
gethostname(buffer, length);
int error = 0;
gethostname(buffer, length);
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_INET; /*Get only ipv4 addrinfo. */
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_CANONNAME;
error = getaddrinfo(buffer, "http", &hints, &info);
error = getaddrinfo(buffer, NULL, &hints, &info);
if (error != 0) {
strcpy(buffer, "getaddrinfo failed\n");
error = 1;
goto get_domain_done;
return error;
}
strcpy(buffer, info->ai_canonname);
get_domain_done:
freeaddrinfo(info);
return error;
}