get computer domain sid

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hi i want to get a computer domain sid without using lookupaccountname

problem is it fails if the computer boots up when the domain controller is off.

i want to get the domain sid even when machine disconnected or domain controller is off.

is it stored or cached any where in registry because i am able to login in domain even when computer is off because the user is cached ...so i think domain sid of machine is also cached somewhere.

is there any api which can give me domain sid.

i want it to work on winxp and win7 and above.

Posted 19-Jul-11 9:02am

Rajesh Katalkar

Updated 19-Jul-11 19:17pm

Prerak Patel

v2

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Sayyed Mostafa Hashemi · Answer 1 · 2011-07-29T08:05:00

ifndef UNICODE
#define UNICODE
#endif
#pragma comment(lib, "netapi32.lib")
#include <stdio.h>
#include <windows.h>
#include <lm.h>
int wmain(int argc, wchar_t *argv[])
{
DWORD dwLevel = 102;
LPWKSTA_INFO_102 pBuf = NULL;
NET_API_STATUS nStatus;
LPWSTR pszServerName = NULL;
//
// Check command line arguments.
//
if (argc > 2)
{
fwprintf(stderr, L"Usage: %s [\\\\ServerName]\n", argv[0]);
exit(1);
}
// The server is not the default local computer.
//
if (argc == 2)
pszServerName = argv[1];
//
// Call the NetWkstaGetInfo function, specifying level 102.
//
nStatus = NetWkstaGetInfo(pszServerName,
dwLevel,
(LPBYTE *)&pBuf);
//
// If the call is successful,
// print the workstation data.
//
if (nStatus == NERR_Success)
{
printf("\n\tPlatform: %d\n", pBuf->wki102_platform_id);
wprintf(L"\tName: %s\n", pBuf->wki102_computername);
printf("\tVersion: %d.%d\n", pBuf->wki102_ver_major,
pBuf->wki102_ver_minor);
wprintf(L"\tDomain: %s\n", pBuf->wki102_langroup);
wprintf(L"\tLan Root: %s\n", pBuf->wki102_lanroot);
wprintf(L"\t# Logged On Users: %d\n", pBuf->wki102_logged_on_users);
}
//
// Otherwise, indicate the system error.
//
else
fprintf(stderr, "A system error has occurred: %d\n", nStatus);
//
// Free the allocated memory.
//
if (pBuf != NULL)
NetApiBufferFree(pBuf);
return 0;
}