GetExplicitEntriesFromAcl

[New - Windows NT]

The GetExplicitEntriesFromAcl function retrieves an array of EXPLICIT_ACCESS structures that describe the access-control entries (ACEs) in an access-control list (ACL).

DWORD GetExplicitEntriesFromAcl(

PACL pacl,	// pointer to the ACL from which to get entries
PULONG pcCountOfExplicitEntries,	// receives number of entries in the list
PEXPLICIT_ACCESS * pListOfExplicitEntries	// receives pointer to list of entries
);

Parameters

pacl

Pointer to an ACL from which to get ACE information.

pcCountOfExplicitEntries

Pointer to a variable that receives the number of EXPLICIT_ACCESS structures returned in the pListOfExplicitEntries array.

pListOfExplicitEntries

Pointer to a variable that receives a pointer to an array of EXPLICIT_ACCESS structures that describe the ACEs in the ACL. If the function succeeds, you must call the LocalFree function to free the returned buffer.

Return Values

If the function succeeds, the return value is ERROR_SUCCESS.

If the function fails, the return value is a nonzero error code defined in WINERROR.H.

Remarks

Each entry in the array of EXPLICIT_ACCESS structures describes access control information from an ACE for a trustee. A trustee can be a user, group, or program (such as a Windows NT service).

Each EXPLICIT_ACCESS structure specifies a set of access rights and an access mode flag that indicates whether the ACE allows, denies, or audits the specified rights.

For a discretionary ACL (DACL), the access mode flag can be one of the following values from the ACCESS_MODE enumeration.

Value	Meaning
SET_ACCESS	Indicates that an access-allowed ACE for the trustee allows the specified access rights.
DENY_ACCESS	Indicates that an access-denied ACE for the trustee denies the specified access rights.

For a system ACL (SACL), the access mode flag can be a combination of the following values from the ACCESS_MODE enumeration.

Value	Meaning
SET_AUDIT_SUCCESS	Indicates that a system-audit ACE for the trustee generates audit messages for successful attempts to use the specified access rights.
SET_AUDIT_FAILURE	Indicates that a system-audit ACE for the trustee generates audit messages for failed attempts to use the specified access rights.

See Also

ACCESS_ALLOWED_ACE, ACCESS_DENIED_ACE, ACE, ACL, EXPLICIT_ACCESS, LocalFree, SYSTEM_AUDIT_ACE

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