如何为不同用户C++创建一个具有读写权限的unix套接字文件？

#include <sys/types.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <unistd.h>
#include <iostream>

int main() {
    // 创建套接字
    int sockfd = socket(AF_UNIX, SOCK_STREAM, 0);
    if (sockfd == -1) {
        std::cerr << "Failed to create socket." << std::endl;
        return 1;
    }

    // 设置套接字路径
    struct sockaddr_un addr;
    addr.sun_family = AF_UNIX;
    strncpy(addr.sun_path, "/path/to/socket", sizeof(addr.sun_path)-1);

    // 绑定套接字
    if (bind(sockfd, (struct sockaddr*)&addr, sizeof(addr)) == -1) {
        std::cerr << "Failed to bind socket." << std::endl;
        return 1;
    }

    // 设置套接字文件的权限为读写
    if (chmod("/path/to/socket", S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH) == -1) {
        std::cerr << "Failed to set socket permissions." << std::endl;
        return 1;
    }

    std::cout << "Unix socket created with read-write permissions." << std::endl;

    return 0;
}