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/*
* $Source$
* $Author$
*
* Copyright 1990 by the Massachusetts Institute of Technology.
* All Rights Reserved.
*
* For copying and distribution information, please see the file
* <krb5/copyright.h>.
*
* Registration functions for ccache.
*/
#if !defined(lint) && !defined(SABER)
static char rcsid_ccbase_c[] =
"$Id$";
#endif /* !lint & !SABER */
#include <krb5/krb5.h>
#include <krb5/ext-proto.h>
extern krb5_cc_ops *krb5_cc_dfl_ops;
struct krb5_cc_typelist
{
krb5_cc_ops *ops;
struct krb5_cc_typelist *next;
};
static struct krb5_cc_typelist *cc_typehead = 0;
/*
* Register a new credentials cache type
* If override is set, replace any existing ccache with that type tag
*/
krb5_error_code
krb5_cc_register(DECLARG(krb5_cc_ops *,ops),
DECLARG(krb5_boolean,override))
OLDDECLARG(krb5_cc_ops *,ops)
OLDDECLARG(krb5_boolean,override)
{
struct krb5_cc_typelist *t;
for (t = cc_typehead;t && strcmp(t->ops->prefix,ops->prefix);t = t->next)
;
if (t) {
if (override) {
t->ops = ops;
return 0;
} else
return KRB5_CC_TYPE_EXISTS;
}
if (!(t = (struct krb5_cc_typelist *) malloc(sizeof(*t))))
return ENOMEM; /* XXX */
t->next = cc_typehead;
t->ops = ops;
cc_typehead = t;
return 0;
}
/*
* Resolve a credential cache name into a cred. cache object.
*
* The name is currently constrained to be of the form "type:residual";
*
* The "type" portion corresponds to one of the predefined credential
* cache types, while the "residual" portion is specific to the
* particular cache type.
*/
krb5_error_code krb5_cc_resolve (name, cache)
char *name;
krb5_ccache *cache;
{
struct krb5_cc_typelist *tlist;
char *pfx, *resid, *cp;
int pfxlen;
cp = strchr (name, ':');
if (!cp)
return KRB5_CC_BADNAME;
pfxlen = cp - name;
resid = name + pfxlen + 1;
pfx = malloc (pfxlen+1);
if (!pfx)
return ENOMEM;
memcpy (pfx, name, pfxlen);
pfx[pfxlen] = '\0';
*cache = (krb5_ccache) 0;
for (tlist = cc_typehead; tlist; tlist = tlist->next) {
if (strcmp (tlist->ops->prefix, pfx) == 0) {
free(pfx);
return (*tlist->ops->resolve)(cache, resid);
}
}
if (krb5_cc_dfl_ops && !strcmp (pfx, krb5_cc_dfl_ops->prefix)) {
free (pfx);
return (*krb5_cc_dfl_ops->resolve)(cache, resid);
}
free(pfx);
return KRB5_CC_UNKNOWN_TYPE;
}
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