process.seteuid()方法是流程模塊的內置應用程序編程接口,用於設置Node.js流程的有效用戶身份。
用法:
process.seteuid( id )
參數:此方法接受上述和以下描述的單個參數:
- id:它是一個必需參數,它包含一個String或一個整數,表示數字ID或用戶名字符串。如果傳遞了用戶名,則在解析關聯的數字ID時會阻塞。
返回值:它不返回任何值。
注意:此函數僅在POSIX平台上有效。它在Windows或Android平台上不可用,因此會導致錯誤,即TypeError,seteuid不是函數。
以下示例說明了Node.js中process.seteuid()方法的使用:
範例1:
// Node.js program to demonstrate the
// process.seteuid() method
// Include process module
const process = require('process');
// Printing the effective user identity
// of the Node.js process and checking
// whether the method exists or not
if (process.geteuid && process.seteuid ) {
// Setting user id
process.seteuid(400);
// Printing geteuid()
console.log("The effective user identity "
+ "of the Node.js process:"
+ process.geteuid());
}
輸出:
The effective user identity of the Node.js process:400
範例2:
// Node.js program to demonstrate the
// process.seteuid() method
// Include process module
const process = require('process');
// Set user id and checking whether
// the method exists or not
if (process.seteuid) {
// Withinn try catch
try {
process.seteuid(696);
console.log("User id has successfully been set");
} catch (err) {
console.log("Failed to set user id:", err);
}
}
// Checking whether the method exists or not
if (process.geteuid) {
// Printing geteuid() value
console.log("The numerical effective user "
+ "identity of the Node.js process:"
+ process.geteuid());
}
輸出:
User id has successfully been set The numerical effective user identity of the Node.js process:696
注意:上麵的程序將通過使用node filename.js
命令。
參考: https://nodejs.org/api/process.html#process_process_seteuid_id
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注:本文由純淨天空篩選整理自gekcho大神的英文原創作品 Node.js | process.seteuid() Method。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。