GetSecurityDescriptorDacl

The GetSecurityDescriptorDacl function retrieves a pointer to the discretionary access-control list (ACL) in a specified security descriptor.

BOOL GetSecurityDescriptorDacl(

PSECURITY_DESCRIPTOR pSecurityDescriptor,	// address of security descriptor
LPBOOL lpbDaclPresent,	// address of flag for presence of disc. ACL
PACL *pDacl,	// address of pointer to ACL
LPBOOL lpbDaclDefaulted	// address of flag for default disc. ACL
);

Parameters

pSecurityDescriptor

Points to the SECURITY_DESCRIPTOR structure containing the discretionary ACL. The function retrieves a pointer to it.

lpbDaclPresent

Points to a flag the function sets to indicate the presence of a discretionary ACL in the specified security descriptor. If this parameter is TRUE, the security descriptor contains a discretionary ACL, and the remaining output parameters in this function receive valid values. If this parameter is FALSE, the security descriptor does not contain a discretionary ACL, and the remaining output parameters do not receive valid values.

pDacl

Points to a pointer to an ACL structure. If a discretionary ACL exists, the function sets the pointer pointed to by pDacl to the address of the security descriptor's discretionary ACL. If a discretionary ACL does not exist, no value is stored.

If the function stores a NULL value in the pointer pointed to by pDacl, the security descriptor has a NULL discretionary ACL. A NULL discretionary ACL implicitly allows all access to an object.

lpbDaclDefaulted

Points to a flag set to the value of the SE_DACL_DEFAULTED flag in the SECURITY_DESCRIPTOR_CONTROL structure if a discretionary ACL exists for the security descriptor. If this flag is TRUE, the discretionary ACL was retrieved by a default mechanism; if FALSE, the discretionary ACL was explicitly specified by a user.

Return Values

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

See Also

ACL, GetSecurityDescriptorControl, GetSecurityDescriptorGroup, GetSecurityDescriptorLength, GetSecurityDescriptorOwner, GetSecurityDescriptorSacl, InitializeSecurityDescriptor, IsValidSecurityDescriptor, SECURITY_DESCRIPTOR, SECURITY_DESCRIPTOR_CONTROL, SetSecurityDescriptorDacl

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