windows/UseridFunction.cpp

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#include <windows.h>
#include <stdlib.h>
 
#include "RexxCore.h"
#include "StringClass.hpp"
#include "ActivityManager.hpp"
#include "SystemInterpreter.hpp"
 
#define ACCOUNT_BUFFER_SIZE  256
 
 
/*********************************************************************/
/*                                                                   */
/*   Subroutine Name:   SysUserid                                    */
/*                                                                   */
/*   Descriptive Name:  retrieve current userid                      */
/*                                                                   */
/*********************************************************************/
 
RexxString *SystemInterpreter::getUserid()
{
    char account_buffer[ACCOUNT_BUFFER_SIZE];
    RexxString *string_result;
    DWORD account_size = sizeof(account_buffer);
    char *account = account_buffer;
 
    while(!GetUserName(account, &account_size))
    {
        if(account != account_buffer)
        {
            free(account);
        }
        switch(GetLastError())
        {
            case ERROR_NOT_ENOUGH_MEMORY:
                account = (char*) malloc(account_size);
                break;
            default:
                reportException(Error_Function_no_data_function, CHAR_USERID);
                break;
        }
    }
 
    string_result = new_string(account);
 
    if(account != account_buffer)
    {
        free(account);
    }
    return string_result;
}