michael@0: /*
michael@0:  * Function to set error code only when meaningful error has not already 
michael@0:  * been set.
michael@0:  *
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "prerror.h"
michael@0: #include "secerr.h"
michael@0: #include "sslerr.h"
michael@0: #include "seccomon.h"
michael@0: 
michael@0: /* look at the current value of PR_GetError, and evaluate it to see
michael@0:  * if it is meaningful or meaningless (out of context). 
michael@0:  * If it is meaningless, replace it with the hiLevelError.
michael@0:  * Returns the chosen error value.
michael@0:  */
michael@0: int
michael@0: ssl_MapLowLevelError(int hiLevelError)
michael@0: {
michael@0:     int oldErr	= PORT_GetError();
michael@0: 
michael@0:     switch (oldErr) {
michael@0: 
michael@0:     case 0:
michael@0:     case PR_IO_ERROR:
michael@0:     case SEC_ERROR_IO:
michael@0:     case SEC_ERROR_BAD_DATA:
michael@0:     case SEC_ERROR_LIBRARY_FAILURE:
michael@0:     case SEC_ERROR_EXTENSION_NOT_FOUND:
michael@0:     case SSL_ERROR_BAD_CLIENT:
michael@0:     case SSL_ERROR_BAD_SERVER:
michael@0:     case SSL_ERROR_SESSION_NOT_FOUND:
michael@0:     	PORT_SetError(hiLevelError);
michael@0: 	return hiLevelError;
michael@0: 
michael@0:     default:	/* leave the majority of error codes alone. */
michael@0: 	return oldErr;
michael@0:     }
michael@0: }