Update to NSPR 4.9.5 Beta 2, part 2: actual changes.

mozilla/nsprpub/pr/src/md/unix/unix_errors.c

 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "primpl.h"
 #if defined(_PR_POLL_AVAILABLE)
 #include <poll.h>
 #endif
 #include <errno.h>
@@ skipping 62 matching lines @@
         case EEXIST:
             prError = PR_FILE_EXISTS_ERROR;
             break;
         case EFAULT:
             prError = PR_ACCESS_FAULT_ERROR;
             break;
         case EFBIG:
             prError = PR_FILE_TOO_BIG_ERROR;
             break;
         case EHOSTUNREACH:
+        case EHOSTDOWN:
             prError = PR_HOST_UNREACHABLE_ERROR;
             break;
         case EINPROGRESS:
             prError = PR_IN_PROGRESS_ERROR;
             break;
         case EINTR:
             prError = PR_PENDING_INTERRUPT_ERROR;
             break;
         case EINVAL:
             prError = PR_INVALID_ARGUMENT_ERROR;
@@ skipping 430 matching lines @@
 }
 
 void _MD_unix_map_connect_error(int err)
 {
     PRErrorCode prError;
 
     switch (err) {
         case EACCES:
             prError = PR_ADDRESS_NOT_SUPPORTED_ERROR;
             break;
-#if defined(UNIXWARE) || defined(SNI) || defined(NEC)
+#if defined(UNIXWARE)
         /*
          * On some platforms, if we connect to a port on the local host 
          * (the loopback address) that no process is listening on, we get 
          * EIO instead of ECONNREFUSED.
          */
         case EIO:
             prError = PR_CONNECT_REFUSED_ERROR;
             break;
 #endif
         case ELOOP:
@@ skipping 295 matching lines @@
     PR_SetError(prError, err);
 }
 #endif /* SOLARIS */
 
 #ifdef LINUX
 void _MD_linux_map_sendfile_error(int err)
 {
     _MD_unix_map_default_error(err) ;
 }
 #endif /* LINUX */