linux本地套接字绑定失败

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/un.h>

#define SOCKET_PATH "/tmp/my_socket"

int main() {
    int sockfd;
    struct sockaddr_un addr;

    // 创建套接字
    if ((sockfd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
        perror("socket");
        exit(EXIT_FAILURE);
    }

    // 清空地址结构
    memset(&addr, 0, sizeof(struct sockaddr_un));
    addr.sun_family = AF_UNIX;
    strncpy(addr.sun_path, SOCKET_PATH, sizeof(addr.sun_path) - 1);

    // 绑定套接字
    if (bind(sockfd, (struct sockaddr*)&addr, sizeof(struct sockaddr_un)) == -1) {
        perror("bind");
        close(sockfd);
        exit(EXIT_FAILURE);
    }

    printf("Socket bound successfully to %s\n", SOCKET_PATH);

    // 关闭套接字
    close(sockfd);
    return 0;
}