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(fallback_get_hosts): limit the fallback lookups to 5.

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Patch from Wesley Craig, umich.edu


git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@17958 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
2006-09-01 10:16:28 +00:00
parent 2150cc879d
commit cf9efd9db1
1 changed files with 9 additions and 0 deletions
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9
lib/krb5/krbhst.c
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@@ -422,6 +422,15 @@ fallback_get_hosts(krb5_context context, struct krb5_krbhst_data *kd,
struct addrinfo hints; struct addrinfo hints;
char portstr[NI_MAXSERV]; char portstr[NI_MAXSERV];
/*
* Don't try forever in case the DNS server keep returning us
* entries (like wildcard entries or the .nu TLD)
*/
if(kd->fallback_count >= 5) {
kd->flags |= KD_FALLBACK;
return 0;
}
if(kd->fallback_count == 0) if(kd->fallback_count == 0)
asprintf(&host, "%s.%s.", serv_string, kd->realm); asprintf(&host, "%s.%s.", serv_string, kd->realm);
else else