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Overview |
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Group |
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Quick Info
Windows NT
| Yes
| Win95
| No
| Win32s
| No
| Import Library
| advapi32.lib
| Header File
| aclapi.h
| Unicode
| No
| Platform Notes
| None
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GetSecurityInfo
[New - Windows NT]
The GetSecurityInfo function retrieves a copy of the security descriptor for an object specified
by a handle.
DWORD GetSecurityInfo(
HANDLE handle,
| // handle to the object
| SE_OBJECT_TYPE ObjectType,
| // type of object
| SECURITY_INFORMATION SecurityInfo,
| // type of security information to retrieve
| PSID *ppsidOwner,
| // receives a pointer to the owner SID
| PSID *ppsidGroup,
| // receives a pointer to the primary group SID
| PACL *ppDacl,
| // receives a pointer to the DACL
| PACL *ppSacl,
| // receives a pointer to the SACL
| PSECURITY_DESCRIPTOR *ppSecurityDescriptor
| // receives a pointer to the security descriptor
| );
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Parameters
handle
A handle to the object from which to retrieve security information.
ObjectType
Specifies a value from the SE_OBJECT_TYPE enumeration that indicates the type of object named by the pObjectName parameter.
SecurityInfo
A set of SECURITY_INFORMATION bit flags that indicate the type of security information to retrieve. This
parameter can be a combination of the following values.
Value
| Meaning
| OWNER_SECURITY_INFORMATION
| If this flag is set, the ppsidOwner parameter receives the security identifier (SID) of the object's owner.
| GROUP_SECURITY_INFORMATION
| If this flag is set, the ppsidGroup parameter receives the SID of the object's primary group.
| DACL_SECURITY_INFORMATION
| If this flag is set, the ppDacl parameter receives the object's discretionary access-control list (DACL).
| SACL_SECURITY_INFORMATION
| If this flag is set, the ppSacl parameter receives the object's system access-control list (SACL)..
|
ppsidOwner
Pointer to a variable that receives a pointer to the owner SID in the security
descriptor returned in ppSecurityDescriptor. The returned pointer is valid only if you set the OWNER_SECURITY_INFORMATION
flag. This parameter can be NULL if you do not need the owner SID.
ppsidGroup
Pointer to a variable that receives a pointer to the primary group SID in the
returned security descriptor. The returned pointer is valid only if you set the
GROUP_SECURITY_INFORMATION flag. This parameter can be NULL if you do not need
the group SID.
ppDacl
Pointer to a variable that receives a pointer to the DACL in the returned
security descriptor. The returned pointer is valid only if you set the
DACL_SECURITY_INFORMATION flag. This parameter can be NULL if you do not need the DACL.
ppSacl
Pointer to a variable that receives a pointer to the SACL in the returned
security descriptor. The returned pointer is valid only if you set the
SACL_SECURITY_INFORMATION flag. This parameter can be NULL if you do not need the SACL.
ppSecurityDescriptor
Pointer to a variable that receives a pointer to the security descriptor of
the object. 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
If the ppsidOwner, ppsidGroup, ppDacl, ppSacl parameters are non-NULL, and the SecurityInfo parameter specifies that they be retrieved from the object, those parameters
will point to the corresponding parameters in the security descriptor returned
in ppSecurityDescriptor.
To read the object's owner, group and DACL the caller must have READ_CONTROL
access or be the owner of the object. The caller must have the SE_SECURITY_NAME
privilege enabled to read the S ACL.
See Also
ACL, GetNamedSecurityInfo, LocalFree, SE_OBJECT_TYPE, SECURITY_DESCRIPTOR, SECURITY_INFORMATION, SetNamedSecurityInfo, SetSecurityInfo, SID
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