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add support for having several default realms

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@7048 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Assar Westerlund
1999-09-28 02:27:16 +00:00
parent 0d3b242182
commit 341016232c
1 changed files with 84 additions and 20 deletions
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102
lib/krb5/set_default_realm.c
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@@ -40,35 +40,99 @@
RCSID("$Id$");
/*
* Convert the config binding in `b' (consisting of strings) to a
* NULL-terminated list of strings in `list'. All memory is
* dynamically allocated. Return an error code.
*/
static krb5_error_code
config_binding_to_list (const krb5_config_binding *b,
krb5_realm **list)
{
int n, i, j;
const krb5_config_binding *p;
for (n = 1, p = b; p != NULL; p = p->next)
++n;
*list = malloc (n * sizeof(**list));
if (*list == NULL)
return ENOMEM;
for (i = 0, p = b; i < n ; ++i, p = p->next)
(*list)[i] = NULL;
for (i = 0, p = b; p != NULL; ++i, p = p->next) {
if (p->type != krb5_config_string)
continue;
(*list)[i] = strdup(p->u.string);
if ((*list)[i] == NULL) {
for (j = 0; j < i; ++j)
free ((*list)[j]);
free (*list);
return ENOMEM;
}
}
return 0;
}
/*
* Convert the simple string `s' into a NULL-terminated and freshly allocated
* list in `list'. Return an error code.
*/
static krb5_error_code
string_to_list (const char *s, krb5_realm **list)
{
*list = malloc (2 * sizeof(**list));
if (*list == NULL)
return ENOMEM;
(*list)[0] = strdup (s);
if ((*list)[0] == NULL) {
free (*list);
return ENOMEM;
}
(*list)[1] = NULL;
return 0;
}
/*
* Set the knowledge of the default realm(s) in `context'.
* If realm != NULL, that's the new default realm.
* Otherwise, the realm(s) are figured out from configuration or DNS.
*/
krb5_error_code
krb5_set_default_realm(krb5_context context,
char *realm)
{
const char *foo;
char *tmp;
krb5_error_code ret;
const char *tmp;
krb5_realm *realms = NULL;
const krb5_config_binding *b;
if (realm == NULL){
foo = krb5_config_get_string (context, NULL,
if (realm == NULL) {
tmp = krb5_config_get_string (context, NULL,
"libdefaults",
"default_realm",
NULL);
if(foo == NULL){
krb5_error_code ret;
if (tmp == NULL) {
b = krb5_config_get_list (context, NULL,
"libdefaults",
"default_realm",
NULL);
if (b == NULL)
ret = krb5_get_host_realm(context, NULL, &realms);
if(ret)
return ret;
foo = realms[0];
else
ret = config_binding_to_list (b, &realms);
} else {
ret = string_to_list (tmp, &realms);
}
} else
foo = realm;
tmp = strdup (foo);
krb5_free_host_realm(context, realms);
if (tmp == NULL)
return ENOMEM;
free(context->default_realm);
context->default_realm = tmp;
} else {
ret = string_to_list (realm, &realms);
}
if (ret)
return ret;
krb5_free_host_realm (context, context->default_realms);
context->default_realms = realms;
return 0;
}