C / C++ / MFC

#include <iostream>
#include <conio.h>
#include <sddl.h>
#include <Aclapi.h>
#include<string.h>
#include <strsafe.h>
#include <windows.h>
char information[1024];
int My_GetObjectAcl(int qtype,char *filestr){
	int i,j;
	char sd[4096];
	char temp1[256];
	DWORD sdsize;
	char strnew[4096];
	DWORD sdnewlen=0; DWORD count;
	PEXPLICIT_ACCESS pList[10]; 
	BOOL d1,d2;
	PACL pDacl=NULL;
	DWORD aclSize;
	BYTE bACEType;
	LPVOID pAce;
	LPBOOL bbb=0;
	PSID pSID=NULL;
	PSID osid=NULL;
	SID_NAME_USE SidType;
	ACCESS_ALLOWED_ACE *ACE;
	DWORD tmp;
	SE_OBJECT_TYPE otype;
	char Name[100], Domain[100];
	DWORD NameSize = 100, DomainSize = 100;
	LPSTR *sidstring;
	char str1[512], str2[512];
	memset(temp1,0,256);
	switch (qtype){
		case 1: otype=SE_FILE_OBJECT; break;
		case 2: otype=SE_REGISTRY_KEY; break;
		default: return 5;
	}
	printf("Trying read: %s\n",filestr);
	pDacl=(PACL)GlobalAlloc(GMEM_FIXED,1000);
	if (qtype==1){
		if (!GetFileSecurityA((LPCSTR)filestr,DACL_SECURITY_INFORMATION,sd,4096,&sdsize)) {printf("Error %d\n",GetLastError());return 5;}
	i=GetSecurityDescriptorDacl(sd,&d1,&pDacl,&d2);
	if (!i){ printf("Error %d\n",GetLastError());return 5;}
	} else
		if(GetNamedSecurityInfoA((LPSTR)filestr,otype,DACL_SECURITY_INFORMATION,NULL,NULL,&pDacl,NULL,NULL)!=ERROR_SUCCESS){printf("::%d",qtype); return 5;}

memset(temp1,0,256);
	sprintf(temp1,"Number of ace entries: %d \n",pDacl->AceCount);
	strcat(information,temp1);
	for (i=0;i<pDacl->AceCount;i++){
		memset(str1,'\0',512);
		j=0;
		NameSize = 100; DomainSize = 100;
		GetAce(pDacl,i,&pAce);
		bACEType = ((ACE_HEADER*)pAce)->AceType;
		ACE = ((ACCESS_ALLOWED_ACE *)pAce);
		pSID = (PSID)&(ACE->SidStart);
		j=LookupAccountSidA(NULL,pSID,Name,&NameSize,Domain, &DomainSize,&SidType);
		if (j==0) printf("\n\n%lu\n\n",GetLastError());				
		
		strcpy(str1,Domain);
		strcat(str1,"\\");
		strcat(str1,Name);
		CharToOemA(Name,Name);
		memset(temp1,0,256);
		sprintf(temp1,"%s\\%s: \n",Domain,Name);
		strcat(information,temp1);
		switch(bACEType){
			case ACCESS_ALLOWED_ACE_TYPE:memset(temp1,0,256);sprintf(temp1,"%s","TYPE:ALLOWED   ");strcat(information,temp1);break;
			case ACCESS_DENIED_ACE_TYPE:memset(temp1,0,256);sprintf(temp1,"%s","TYPE:DENIED  ");strcat(information,temp1);  break;
		}
		memset(temp1,0,256);
		 sprintf(temp1,"Mask: %X\n",ACE->Mask);
		 strcat(information,temp1); 
		 	memset(temp1,0,256);
		 tmp=0x80000000;
		 for (j=0;j<32;j++){
			 if ((ACE->Mask)&tmp) strcat(temp1,"1"); else    strcat(temp1,"0");
			 tmp=tmp>>1;
		 }
		strcat(information,temp1);
	}
		return 0;
}
int main()
{int k;
k=My_GetObjectAcl(2,"CURRENT_USER\\");
printf("%s\n",information);//all fine
memset(information,0,1024);
k=My_GetObjectAcl(2,"LOCAL_MACHINE\\");
printf("%s\n",information);//nothing
getch();
}