1 files changed, 95 insertions, 0 deletions
diff --git a/src/lib/krb5/krb/authdata_exp.c b/src/lib/krb5/krb/authdata_exp.c
new file mode 100644
index 000000000000..227581907fd6
--- /dev/null
+++ b/src/lib/krb5/krb/authdata_exp.c
@@ -0,0 +1,95 @@
+/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
+/*
+ * Copyright 2009 by the Massachusetts Institute of Technology.  All
+ * Rights Reserved.
+ *
+ * Export of this software from the United States of America may
+ *   require a specific license from the United States Government.
+ *   It is the responsibility of any person or organization contemplating
+ *   export to obtain such a license before exporting.
+ *
+ * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
+ * distribute this software and its documentation for any purpose and
+ * without fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright notice and
+ * this permission notice appear in supporting documentation, and that
+ * the name of M.I.T. not be used in advertising or publicity pertaining
+ * to distribution of the software without specific, written prior
+ * permission.  Furthermore if you modify this software you must label
+ * your software as modified software and not distribute it in such a
+ * fashion that it might be confused with the original M.I.T. software.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose.  It is provided "as is" without express
+ * or implied warranty.
+ *
+ * krb5_authdata_export_authdata()
+ */
+
+#include "k5-int.h"
+#include "authdata.h"
+#include "auth_con.h"
+#include "int-proto.h"
+
+krb5_error_code KRB5_CALLCONV
+krb5_authdata_export_authdata(krb5_context kcontext,
+                              krb5_authdata_context context,
+                              krb5_flags flags,
+                              krb5_authdata ***pauthdata)
+{
+    int i;
+    krb5_error_code code = 0;
+    krb5_authdata **authdata = NULL;
+    unsigned int len = 0;
+
+    *pauthdata = NULL;
+
+    for (i = 0; i < context->n_modules; i++) {
+        struct _krb5_authdata_context_module *module = &context->modules[i];
+        krb5_authdata **authdata2 = NULL;
+        int j;
+
+        if ((module->flags & flags) == 0)
+            continue;
+
+        if (module->ftable->export_authdata == NULL)
+            continue;
+
+        code = (*module->ftable->export_authdata)(kcontext,
+                                                  context,
+                                                  module->plugin_context,
+                                                  *(module->request_context_pp),
+                                                  flags,
+                                                  &authdata2);
+        if (code == ENOENT)
+            code = 0;
+        else if (code != 0)
+            break;
+
+        if (authdata2 == NULL)
+            continue;
+
+        for (j = 0; authdata2[j] != NULL; j++)
+            ;
+
+        authdata = realloc(authdata, (len + j + 1) * sizeof(krb5_authdata *));
+        if (authdata == NULL)
+            return ENOMEM;
+
+        memcpy(&authdata[len], authdata2, j * sizeof(krb5_authdata *));
+        free(authdata2);
+
+        len += j;
+    }
+
+    if (authdata != NULL)
+        authdata[len] = NULL;
+
+    if (code != 0) {
+        krb5_free_authdata(kcontext, authdata);
+        return code;
+    }
+
+    *pauthdata = authdata;
+
+    return 0;
+}