Win32 API FAQ
Страница 12.

21)----------------------------------------------------------------------------

Q> Кто по сети или локально шарится по моей(не моей)машине?

A>

//------------------------------------------------------
// Who.exe (c) 1999 Serge Andyk Этот e-mail защищен от спам-ботов. Для его просмотра в вашем браузере должна быть включена поддержка Java-script
// Usage "who [server]". Show all local and network users
// on specified server and some additional information.
// Freeware.You can use and modify this source code
// as you wish.
//-------------------------------------------------------

#include
#include
#include
#pragma hdrstop

#pragma comment( lib, "netapi32.lib" )

#define MAXLEN 256

    SESSION_INFO_502 *buf, *cur;
    WKSTA_USER_INFO_1 *bufw, *curw;
    FILE_INFO_3 *buff,*curf;

    DWORD read, total, resumeh, rc, i;
//-----------------------------------------------------------
void PrintError( DWORD err )
{
    char msgbuf[4096];

    FormatMessage( FORMAT_MESSAGE_FROM_SYSTEM, NULL, err,
     MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
     msgbuf, sizeof( msgbuf ), NULL );
    printf( "Error %d: %s\n", err, msgbuf );
}
//-------------------------------------------------------

void PrintLocalUsers(LPWSTR server)
{
    resumeh = 0;
    do
    {
     bufw = NULL;

     rc = NetWkstaUserEnum(
      (LPTSTR)server,
      1,
      (LPBYTE*) &bufw,
      2048,
      &read,
      &total,
      &resumeh );

     if ( rc != ERROR_MORE_DATA && rc != ERROR_SUCCESS )
      break;

{
     for ( i = 0, curw = bufw; i < read; ++ i, ++ curw )
     {
      printf( "%-12S %-15S %-12S \n",
       curw->wkui1_username, curw->wkui1_logon_domain,
       curw->wkui1_logon_server
       );

     }
}
     if ( bufw != NULL )
     NetApiBufferFree( bufw );

    } while ( rc == ERROR_MORE_DATA );

    if ( rc != ERROR_SUCCESS ) PrintError( rc );
}
//-------------------------------------------------------
void PrintNetUsers(LPWSTR server)
{
    resumeh = 0;
    do
    {
     buf = NULL;

     rc = NetSessionEnum(
      (LPTSTR) server,
      NULL,
      NULL,
      502,
      (LPBYTE*)&buf,
      2048,
      &read,
      &total,
      &resumeh );

     if ( rc != ERROR_MORE_DATA && rc != ERROR_SUCCESS )
      break;
{
     for ( i = 0, cur = buf; i < read; ++ i, ++ cur )
     {
      printf( "%-12S %-12S %-27S %-22S\n",
       cur->sesi502_username, cur->sesi502_cname, cur->sesi502_transport,
       cur->sesi502_cltype_name
       );
     }
}

     if ( buf != NULL )
      NetApiBufferFree( buf );

    } while ( rc == ERROR_MORE_DATA );

    if ( rc != ERROR_SUCCESS ) PrintError( rc );
}
//-------------------------------------------------------
void PrintNetFiles(LPWSTR server)
{

    resumeh = 0;
    do
    {
     buff = NULL;

     rc=NetFileEnum(
      (char *) server,
      NULL,
      NULL,
      3,
         (BYTE**)&buff,
      2048,
      &read,
      &total,
      &resumeh );

     if ( rc != ERROR_MORE_DATA && rc != ERROR_SUCCESS )
      break;

     for ( i = 0, curf = buff; i < read; ++ i, ++ curf )
     {
      printf( "%-12S %-15S \n",
       curf->fi3_username, curf->fi3_pathname
       );

     }
     if ( buff != NULL )
     NetApiBufferFree( buff );

    } while ( rc == ERROR_MORE_DATA );

     if ( rc != ERROR_SUCCESS ) PrintError( rc );

}
//-------------------------------------------------------
int main( int argc, char *argv[] )
{

    WCHAR server[MAXLEN];

    if ( argc == 1 )
    {
     wcscpy(server,L"");
    }
    else
    if ( argc == 2 )
    {
     mbstowcs( server, argv[1],MAXLEN);
    }
    else
           {
    printf("Usage - who [server]");
    exit(1);
    }

    printf("\nLocal users:\n");
    PrintLocalUsers(server);
    printf("\nNet users:\n");
    PrintNetUsers(server);
    printf("\nFiles(Pipes)\n");
    PrintNetFiles(server);

    return 0;
}