ms-nfs41-client/mount/enum.c

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/* Copyright (c) 2010
* The Regents of the University of Michigan
* All Rights Reserved
*
* Permission is granted to use, copy and redistribute this software
* for noncommercial education and research purposes, so long as no
* fee is charged, and so long as the name of the University of Michigan
* is not used in any advertising or publicity pertaining to the use
* or distribution of this software without specific, written prior
* authorization. Permission to modify or otherwise create derivative
* works of this software is not granted.
*
* This software is provided as is, without representation or warranty
* of any kind either express or implied, including without limitation
* the implied warranties of merchantability, fitness for a particular
* purpose, or noninfringement. The Regents of the University of
* Michigan shall not be liable for any damages, including special,
* indirect, incidental, or consequential damages, with respect to any
* claim arising out of or in connection with the use of the software,
* even if it has been or is hereafter advised of the possibility of
* such damages.
*/
#include <Windows.h>
#include <tchar.h>
#include <stdio.h>
#include "nfs41_driver.h" /* NFS41_PROVIDER_NAME_A */
void PrintErrorMessage(
IN DWORD dwError);
static __inline
void PrintMountLine(
LPCTSTR local,
LPCTSTR remote)
{
_tprintf(TEXT("%-11s %s\n"), local, remote);
}
/* ENUM_RESOURCE_BUFFER_SIZE
* from msdn re: WNetEnumResource
* "An application cannot set the lpBuffer parameter to NULL and
* retrieve the required buffer size from the lpBufferSize parameter.
* Instead, the application should allocate a buffer of a reasonable
* size<EFBFBD>16 kilobytes is typical<EFBFBD>and use the value of lpBufferSize for
* error detection." */
#define ENUM_RESOURCE_BUFFER_SIZE (16*1024)
DWORD EnumMounts(
IN LPNETRESOURCE pContainer)
{
DWORD result = NO_ERROR;
LPNETRESOURCE pResources;
DWORD i, dwCount, dwTotal = 0;
DWORD dwBufferSize = ENUM_RESOURCE_BUFFER_SIZE;
HANDLE hEnum;
pResources = (LPNETRESOURCE)GlobalAlloc(0, ENUM_RESOURCE_BUFFER_SIZE);
if (pResources == NULL) {
result = WN_OUT_OF_MEMORY;
goto out;
}
result = WNetOpenEnum(RESOURCE_CONNECTED,
RESOURCETYPE_DISK, 0, pContainer, &hEnum);
if (result)
goto out_free;
_tprintf(TEXT("Listing %s mounts:\n\n"), TEXT(NFS41_PROVIDER_NAME_A));
PrintMountLine(TEXT("Volume"), TEXT("Remote path"));
do
{
dwCount = (DWORD)-1;
result = WNetEnumResource(hEnum,
&dwCount, pResources, &dwBufferSize);
if (result == NO_ERROR)
{
for (i = 0; i < dwCount; i++)
{
if (_tcscmp(pResources[i].lpProvider,
TEXT(NFS41_PROVIDER_NAME_A)) == 0)
{
PrintMountLine(pResources[i].lpLocalName,
pResources[i].lpRemoteName);
dwTotal++;
}
}
}
else if (result != WN_NO_MORE_ENTRIES)
break;
}
while (result != WN_NO_MORE_ENTRIES);
result = WNetCloseEnum(hEnum);
_tprintf(TEXT("\nFound %d share%s.\n"), dwTotal,
dwTotal == 1 ? TEXT("") : TEXT("s"));
out_free:
GlobalFree((HGLOBAL)pResources);
out:
return result;
}