--- /dev/null
+/*
+ * $Source$
+ * $Author$
+ *
+ * Copyright 1990 by the Massachusetts Institute of Technology.
+ *
+ * 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/copyright.h>
+#include <krb5/krb5.h>
+#include <krb5/ext-proto.h>
+
+struct krb5_cc_typelist
+ {
+ krb5_cc_ops *ops;
+ struct krb5_cc_typelist *next;
+ };
+static struct krb5_cc_typelist krb5_cc_typelist_dfl = { &krb5_cc_dfl_ops, 0 };
+static struct krb5_cc_typelist *cc_typehead = &krb5_cc_typelist_dfl;
+
+/*
+ * 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);
+ }
+ }
+ free(pfx);
+ return KRB5_CC_UNKNOWN_TYPE;
+}