Linux: enable building with a local version of libssl.

net/third_party/nss/ssl/sslerr.c

+/*
+ * Function to set error code only when meaningful error has not already 
+ * been set.
+ *
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is the Netscape security libraries.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1994-2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+/* $Id: sslerr.c,v 1.4 2004/04/27 23:04:39 gerv%gerv.net Exp $ */
+
+#include "prerror.h"
+#include "secerr.h"
+#include "sslerr.h"
+#include "seccomon.h"
+
+/* look at the current value of PR_GetError, and evaluate it to see
+ * if it is meaningful or meaningless (out of context). 
+ * If it is meaningless, replace it with the hiLevelError.
+ * Returns the chosen error value.
+ */
+int
+ssl_MapLowLevelError(int hiLevelError)
+{
+    int oldErr  = PORT_GetError();
+
+    switch (oldErr) {
+
+    case 0:
+    case PR_IO_ERROR:
+    case SEC_ERROR_IO:
+    case SEC_ERROR_BAD_DATA:
+    case SEC_ERROR_LIBRARY_FAILURE:
+    case SEC_ERROR_EXTENSION_NOT_FOUND:
+    case SSL_ERROR_BAD_CLIENT:
+    case SSL_ERROR_BAD_SERVER:
+    case SSL_ERROR_SESSION_NOT_FOUND:
+        PORT_SetError(hiLevelError);
+        return hiLevelError;
+
+    default:    /* leave the majority of error codes alone. */
+        return oldErr;
+    }
+}