net/third_party/nss/ssl/sslerr.c

   1 /*
   2  * Function to set error code only when meaningful error has not already
   3  * been set.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   8 /* $Id: sslerr.c,v 1.5 2012/04/25 14:50:12 gerv%gerv.net Exp $ */
   9
  10 #include "prerror.h"
  11 #include "secerr.h"
  12 #include "sslerr.h"
  13 #include "seccomon.h"
  14
  15 /* look at the current value of PR_GetError, and evaluate it to see
  16  * if it is meaningful or meaningless (out of context).
  17  * If it is meaningless, replace it with the hiLevelError.
  18  * Returns the chosen error value.
  19  */
  20 int
  21 ssl_MapLowLevelError(int hiLevelError)
  22 {
  23     int oldErr  = PORT_GetError();
  24
  25     switch (oldErr) {
  26
  27     case 0:
  28     case PR_IO_ERROR:
  29     case SEC_ERROR_IO:
  30     case SEC_ERROR_BAD_DATA:
  31     case SEC_ERROR_LIBRARY_FAILURE:
  32     case SEC_ERROR_EXTENSION_NOT_FOUND:
  33     case SSL_ERROR_BAD_CLIENT:
  34     case SSL_ERROR_BAD_SERVER:
  35     case SSL_ERROR_SESSION_NOT_FOUND:
  36         PORT_SetError(hiLevelError);
  37         return hiLevelError;
  38
  39     default:    /* leave the majority of error codes alone. */
  40         return oldErr;
  41     }
  42 }