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
   9 #include "prerror.h"
  10 #include "secerr.h"
  11 #include "sslerr.h"
  12 #include "seccomon.h"
  13
  14 /* look at the current value of PR_GetError, and evaluate it to see
  15  * if it is meaningful or meaningless (out of context).
  16  * If it is meaningless, replace it with the hiLevelError.
  17  * Returns the chosen error value.
  18  */
  19 int
  20 ssl_MapLowLevelError(int hiLevelError)
  21 {
  22     int oldErr  = PORT_GetError();
  23
  24     switch (oldErr) {
  25
  26     case 0:
  27     case PR_IO_ERROR:
  28     case SEC_ERROR_IO:
  29     case SEC_ERROR_BAD_DATA:
  30     case SEC_ERROR_LIBRARY_FAILURE:
  31     case SEC_ERROR_EXTENSION_NOT_FOUND:
  32     case SSL_ERROR_BAD_CLIENT:
  33     case SSL_ERROR_BAD_SERVER:
  34     case SSL_ERROR_SESSION_NOT_FOUND:
  35         PORT_SetError(hiLevelError);
  36         return hiLevelError;
  37
  38     default:    /* leave the majority of error codes alone. */
  39         return oldErr;
  40     }
  41 }