#include <windows.h>#include <stdio.h>int main() {    // Initialize a security descriptor    SECURITY_DESCRIPTOR securityDescriptor;    if (!InitializeSecurityDescriptor(&securityDescriptor, SECURITY_DESCRIPTOR_REVISION)) {        fprintf(stderr, "Failed to initialize security descriptor. Error: %lu\n", GetLastError());        return 1;    }    // Create a DACL    // Allocate memory for the DACL (size must accommodate ACEs and DACL header)    DWORD daclSize = sizeof(ACL) +                     3 * (sizeof(ACCESS_ALLOWED_ACE) - sizeof(DWORD)) + // Size of 3 ACEs                     3 * SECURITY_MAX_SID_SIZE; // Maximum size for 3 SIDs    PACL dacl = (PACL)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, daclSize);    if (!dacl) {        fprintf(stderr, "Failed to allocate memory for DACL. Error: %lu\n", GetLastError());        return 1;    }    if (!InitializeAcl(dacl, daclSize, ACL_REVISION)) {        fprintf(stderr, "Failed to initialize DACL. Error: %lu\n", GetLastError());        HeapFree(GetProcessHeap(), 0, dacl);        return 1;    }    // Define and create well-known SIDs    BYTE systemSidBuffer[SECURITY_MAX_SID_SIZE];    BYTE administratorsSidBuffer[SECURITY_MAX_SID_SIZE];    BYTE ownerSidBuffer[SECURITY_MAX_SID_SIZE];    DWORD sidSize = SECURITY_MAX_SID_SIZE;    if (!CreateWellKnownSid(WinLocalSystemSid, NULL, systemSidBuffer, &sidSize) ||        !CreateWellKnownSid(WinBuiltinAdministratorsSid, NULL, administratorsSidBuffer, &sidSize) ||        !CreateWellKnownSid(WinCreatorOwnerSid, NULL, ownerSidBuffer, &sidSize)) {        fprintf(stderr, "Failed to create well-known SIDs. Error: %lu\n", GetLastError());        HeapFree(GetProcessHeap(), 0, dacl);        return 1;    }    // Add ACEs to the DACL    if (!AddAccessAllowedAceEx(dacl, ACL_REVISION, OBJECT_INHERIT_ACE | CONTAINER_INHERIT_ACE, GENERIC_ALL, (PSID)systemSidBuffer) ||        !AddAccessAllowedAceEx(dacl, ACL_REVISION, OBJECT_INHERIT_ACE | CONTAINER_INHERIT_ACE, GENERIC_ALL, (PSID)administratorsSidBuffer) ||        !AddAccessAllowedAceEx(dacl, ACL_REVISION, OBJECT_INHERIT_ACE | CONTAINER_INHERIT_ACE, GENERIC_ALL, (PSID)ownerSidBuffer)) {        fprintf(stderr, "Failed to add ACE to DACL. Error: %lu\n", GetLastError());        HeapFree(GetProcessHeap(), 0, dacl);        return 1;    }    // Set the DACL in the security descriptor    if (!SetSecurityDescriptorDacl(&securityDescriptor, TRUE, dacl, FALSE)) {        fprintf(stderr, "Failed to set DACL in security descriptor. Error: %lu\n", GetLastError());        HeapFree(GetProcessHeap(), 0, dacl);        return 1;    }    // Security descriptor successfully initialized    printf("Security descriptor successfully initialized.\n");    // Clean up    HeapFree(GetProcessHeap(), 0, dacl);    return 0;}