我一直在尝试创建与本地套接字文件的连接,但 errno 总是返回-1。
var socketPath = "/path/to/socket"
let sockDesc = socket(AF_LOCAL, SOCK_STREAM, 0)
var address = sockaddr_un()
address.sun_family = UInt8(AF_LOCAL)
address.sun_len = UInt8(bitPattern:Int8(MemoryLayout<sockaddr_un>.size))
let dataPtr = UnsafeMutablePointer<Int8>(&address.sun_path.0)
strncpy(dataPtr, socketPath, socketPath.characters.count)
let result = withUnsafePointer(to: &address) {
$0.withMemoryRebound(to: sockaddr.self, capacity: 1) {
connect(sockDesc, $0, socklen_t(MemoryLayout<sockaddr>.stride));
}
}
这个套接字是有效的,因为另一个使用Qt开发的客户端可以愉快地连接到这个路径。这里是否有明显的错误,或者应该可以工作?