*** empty log message ***

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@1017 dc483132-0cff-0310-8789-dd5450dbe970

1 files changed, 101 insertions, 0 deletions

diff --git a/src/lib/krb5/ccache/ccbase.c b/src/lib/krb5/ccache/ccbase.c
new file mode 100644
index 000000000..8fd1e606e
--- /dev/null
+++ b/src/lib/krb5/ccache/ccbase.c
@@ -0,0 +1,101 @@
+/*
+ * $Source$
+ * $Author$
+ *
+ * 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;
+}