1 files changed, 98 insertions, 0 deletions
diff --git a/src/lib/krb5/krb/copy_data.c b/src/lib/krb5/krb/copy_data.c
new file mode 100644
index 0000000000000..9969e04249b9c
--- /dev/null
+++ b/src/lib/krb5/krb/copy_data.c
@@ -0,0 +1,98 @@
+/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
+/* lib/krb5/krb/copy_data.c */
+/*
+ * Copyright 1990,1991,2009 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_copy_data()
+ */
+
+#include "k5-int.h"
+
+/*
+ * Copy a data structure, with fresh allocation.
+ */
+krb5_error_code KRB5_CALLCONV
+krb5_copy_data(krb5_context context, const krb5_data *indata, krb5_data **outdata)
+{
+    krb5_data *tempdata;
+    krb5_error_code retval;
+
+    if (!indata) {
+        *outdata = 0;
+        return 0;
+    }
+
+    if (!(tempdata = (krb5_data *)malloc(sizeof(*tempdata))))
+        return ENOMEM;
+
+    retval = krb5int_copy_data_contents(context, indata, tempdata);
+    if (retval) {
+        free(tempdata);
+        return retval;
+    }
+
+    *outdata = tempdata;
+    return 0;
+}
+
+krb5_error_code
+krb5int_copy_data_contents(krb5_context context, const krb5_data *indata, krb5_data *outdata)
+{
+    if (!indata) {
+        return EINVAL;
+    }
+
+    outdata->length = indata->length;
+    if (outdata->length) {
+        if (!(outdata->data = malloc(outdata->length))) {
+            return ENOMEM;
+        }
+        memcpy(outdata->data, indata->data, outdata->length);
+    } else
+        outdata->data = 0;
+    outdata->magic = KV5M_DATA;
+
+    return 0;
+}
+
+/* As above, but add an (uncounted) extra byte at the end to
+   null-terminate the data so it can be used as a standard C
+   string.  */
+krb5_error_code
+krb5int_copy_data_contents_add0(krb5_context context, const krb5_data *indata, krb5_data *outdata)
+{
+    if (!indata)
+        return EINVAL;
+    outdata->length = indata->length;
+    if (!(outdata->data = malloc(outdata->length + 1)))
+        return ENOMEM;
+    if (outdata->length)
+        memcpy(outdata->data, indata->data, outdata->length);
+    outdata->data[outdata->length] = 0;
+    outdata->magic = KV5M_DATA;
+
+    return 0;
+}