Objective c Swift：如何通过SCDynamicStoreCopyConsoleUser获取控制台用户、UID和GID？

我可以使用python从SCDynamicStoreCopyConsoleUser获取用户名、UID和GID：

 #!/usr/bin/python
 from SystemConfiguration import SCDynamicStoreCopyConsoleUser
 cfuser = SCDynamicStoreCopyConsoleUser( None, None, None )
 print cfuser[0] # Returns console user, e.g.: myUsername
 print cfuser[1] # Returns console user’s UID, e.g.: 501
 print cfuser[2] # Returns console user’s GID, e.g.: 20

如何使用Swift获得相同的报税表

SCDynamicStoreCopyConsoleUser的快速声明

 func SCDynamicStoreCopyConsoleUser(_ store: SCDynamicStore!,
                                    _ uid: CMutablePointer<uid_t>,
                                    _ gid: CMutablePointer<gid_t>) -> Unmanaged<CFString>!

func-SCDynamicStoreCopyConsoleUser（u-store:SCDynamicStore！，
_uid:CMutablePointer，
_gid:CMutablePointer）->非托管！

我的快速呼叫

 var uid: CMutablePointer<uid_t>!
 var gid: CMutablePointer<gid_t>!

 var cfuser: NSArray = [SCDynamicStoreCopyConsoleUser(nil,uid,gid)]

 // the return has only one element containing the username

var-uid:CMutablePointer！
变量gid:CMutablePointer！
var cfuser:NSArray=[scdynamicstorecompyconsoleuser（nil、uid、gid）]
//返回只有一个包含用户名的元素

Swift函数

SCDynamicStoreCopyConsoleUser

采用

CMutablePointer

参数，这意味着您必须传递

uid\u t

变量的地址。 您还应该检查调用是否成功（否则返回

nil

）， 和你 必须按照中的说明转换返回的非托管对象 :

import SystemConfiguration

var uid: uid_t = 0
var gid: gid_t = 0

if let theResult = SCDynamicStoreCopyConsoleUser(nil, &uid, &gid) {
    let name = theResult.takeUnretainedValue()
    println("name = \(name), uid = \(uid), gid = \(gid)")
} else {
    println("failed")
}