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(krb5_get_host_realm_int): new function that takes a FQDN

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@6669 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Assar Westerlund
1999-07-31 04:49:46 +00:00
parent 14ad47a68d
commit 9b481dec7f
1 changed files with 30 additions and 31 deletions
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57
lib/krb5/get_host_realm.c
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@@ -133,48 +133,27 @@ config_find_realm(krb5_context context,
} }
/* /*
* Return the realm(s) of `host' as a NULL-terminated list in `realms'. */ * This function assumes that `host' is a FQDN (and doesn't handle the
* special case of host == NULL either).
* Try to find mapping in the config file or DNS and it that fails,
* fall back to guessing
*/
krb5_error_code krb5_error_code
krb5_get_host_realm(krb5_context context, krb5_get_host_realm_int (krb5_context context,
const char *host, const char *host,
krb5_realm **realms) krb5_realm **realms)
{ {
char hostname[MAXHOSTNAMELEN];
const char *p; const char *p;
struct in_addr addr;
struct hostent *hostent;
const char *orig_host;
if (host == NULL) { for (p = host; p != NULL; p = strchr (p + 1, '.')) {
if (gethostname (hostname, sizeof(hostname)))
return errno;
host = hostname;
}
orig_host = host;
addr.s_addr = inet_addr(host);
hostent = roken_gethostbyname (host);
if (hostent == NULL && addr.s_addr != INADDR_NONE)
hostent = roken_gethostbyaddr ((const char *)&addr,
sizeof(addr),
AF_INET);
if (hostent != NULL)
host = hostent->h_name;
p = host;
while(p) {
if(config_find_realm(context, p, realms) == 0) if(config_find_realm(context, p, realms) == 0)
return 0; return 0;
else if(dns_find_realm(context, p, realms) == 0) else if(dns_find_realm(context, p, realms) == 0)
return 0; return 0;
p = strchr(p + 1, '.');
} }
p = strchr(host, '.'); p = strchr(host, '.');
if(p == NULL) if(p != NULL) {
p = strchr(orig_host, '.');
if(p) {
p++; p++;
*realms = malloc(2 * sizeof(krb5_realm)); *realms = malloc(2 * sizeof(krb5_realm));
if (*realms == NULL) if (*realms == NULL)
@@ -191,3 +170,23 @@ krb5_get_host_realm(krb5_context context,
} }
return KRB5_ERR_HOST_REALM_UNKNOWN; return KRB5_ERR_HOST_REALM_UNKNOWN;
} }
/*
* Return the realm(s) of `host' as a NULL-terminated list in `realms'.
*/
krb5_error_code
krb5_get_host_realm(krb5_context context,
const char *host,
krb5_realm **realms)
{
char hostname[MAXHOSTNAMELEN];
if (host == NULL) {
if (gethostname (hostname, sizeof(hostname)))
return errno;
host = hostname;
}
return krb5_get_host_realm_int (context, host, realms);
}