SetSecurityDescriptorSacl

The SetSecurityDescriptorSacl function sets information in a system access-control list (ACL). If there is already a system ACL present in the security descriptor, it is replaced.

BOOL SetSecurityDescriptorSacl(

PSECURITY_DESCRIPTOR pSecurityDescriptor,	// address of security descriptor
BOOL bSaclPresent,	// flag for presence of system ACL
PACL pSacl,	// address of system ACL
BOOL bSaclDefaulted	// flag for default system ACL
);

Parameters

pSecurityDescriptor

Points to the SECURITY_DESCRIPTOR structure to which the function adds the system ACL. This security descriptor must be in absolute format, meaning that its members must be pointers to other structures, rather than offsets to contiguous data.

bSaclPresent

Specifies a flag indicating the presence of a system ACL in the security descriptor. If this parameter is TRUE, the function sets the SE_SACL_PRESENT flag in the SECURITY_DESCRIPTOR_CONTROL structure and uses the values in the pSacl and bSaclDefaulted parameters. If it is FALSE, the function does not set the SE_SACL_PRESENT flag, and pSacl and bSaclDefaulted are ignored.

pSacl

Points to an ACL structure that specifies the system ACL for the security descriptor. If this parameter is NULL, a NULL system ACL is assigned to the security descriptor. The system ACL is referenced by, not copied into, the security descriptor.

bSaclDefaulted

Specifies a flag indicating the source of the system ACL. If this flag is TRUE, the system ACL has been retrieved by some default mechanism. If it is FALSE, the system ACL has been explicitly specified by a user. The function stores this value in the SE_SACL_DEFAULTED flag of the SECURITY_DESCRIPTOR_CONTROL structure. If this parameter is not specified, the SE_SACL_DEFAULTED flag is cleared.

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, GetSecurityDescriptorSacl, InitializeSecurityDescriptor, IsValidSecurityDescriptor, SECURITY_DESCRIPTOR, SECURITY_DESCRIPTOR_CONTROL, SetSecurityDescriptorDacl, SetSecurityDescriptorGroup, SetSecurityDescriptorOwner

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