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(krb5_expand_hostname): handle ai_canonname not being set

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@7607 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Assar Westerlund
1999-12-16 11:47:22 +00:00
parent ea9cde948d
commit 644205aa07
1 changed files with 16 additions and 5 deletions
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21
lib/krb5/expand_hostname.c
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@@ -35,6 +35,17 @@
RCSID("$Id$");
static krb5_error_code
copy_hostname(krb5_context context,
const char *orig_hostname,
char **new_hostname)
{
*new_hostname = strdup (orig_hostname);
if (*new_hostname == NULL)
return ENOMEM;
return 0;
}
krb5_error_code
krb5_expand_hostname (krb5_context context,
const char *orig_hostname,
@@ -47,11 +58,11 @@ krb5_expand_hostname (krb5_context context,
hints.ai_flags = AI_CANONNAME;
error = getaddrinfo (orig_hostname, NULL, &hints, &ai);
if (error) {
*new_hostname = strdup (orig_hostname);
if (*new_hostname == NULL)
return ENOMEM;
return 0;
if (error)
return copy_hostname (context, orig_hostname, new_hostname);
if (ai->ai_canonname == NULL) {
freeaddrinfo (ai);
return copy_hostname (context, orig_hostname, new_hostname);
}
*new_hostname = strdup(ai->ai_canonname);
freeaddrinfo (ai);