枚举NT系统用户

#define UNICODE
#include <windows.h>
#include <stdio.h>
#include <lm.h>

void main( int argc, char *argv[ ] )
{
PNET_DISPLAY_USER pBuff, p;
DWORD res, dwRec, i = 0;
//
// You can pass a NULL or empty string
// to retrieve the local information.
//
TCHAR szServer[255]=TEXT("");

if(argc > 1)
//
// Check to see if a server name was passed;
// if so, convert it to Unicode.
//
MultiByteToWideChar(CP_ACP, 0, argv[1], -1, szServer, 255);

do // begin do
{
//
// Call the NetQueryDisplayInformation function;
// specify information level 1 (user account information).
//
res = NetQueryDisplayInformation(szServer, 1, i, 1000, MAX_PREFERRED_LENGTH, &dwRec, (void**)&pBuff);
//
// If the call succeeds,
//
if((res==ERROR_SUCCESS) || (res==ERROR_MORE_DATA))
{
p = pBuff;
for(;dwRec>0;dwRec--)
{
//
// Print the retrieved group information.
//
printf("Name: %S\n"
"Comment: %S\n"
"Group ID: %u\n"
"Attributes: %u\n"
"--------------------------------\n",
p->usri1_name,
p->usri1_comment,
p->usri1_user_id,
p->usri1_flags);
//
// If there is more data, set the index.
//
i = p->usri1_next_index;
p++;
}
//
// Free the allocated memory.
//
NetApiBufferFree(pBuff);
}
else
printf("Error: %u\n", res);
//
// Continue while there is more data.
//
} while (res==ERROR_MORE_DATA); // end do
return;
}