redhat 7.0 进程问题__sockfd_struct_my_addr_printf_sockaddr_in_

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redhat 7.0 进程问题

来源: 互联网发布时间：2015-06-13

本文导语: int main() { int sockfd, new_fd; struct sockaddr_in my_addr; struct sockaddr_in their_addr; int sin_size; int retval; if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) { printf("socketn"); ...

int main()
{
    int sockfd, new_fd;
    struct sockaddr_in my_addr;
    struct sockaddr_in their_addr;
    int sin_size;
    int retval;

    if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
        printf("socketn");
        exit(1);
    }

    if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(int)) == -1) {
        printf("setsockoptn");
        exit(1);
    }

    my_addr.sin_family = AF_INET;         // host byte order
    my_addr.sin_port = htons(12345);      // short, network byte order
    my_addr.sin_addr.s_addr = INADDR_ANY; // automatically fill with my IP
    memset(&(my_addr.sin_zero), '', 8); // zero the rest of the struct

    if (bind(sockfd, (struct sockaddr *)&my_addr, sizeof(struct sockaddr)) == -1) {
        printf("bindn");
        exit(1);
    }

    if (listen(sockfd, 20) == -1) {
        printf("listenn");
        exit(1);
    }

    while(1) {
        sin_size = sizeof(struct sockaddr_in);
        if ((new_fd = accept(sockfd, (struct sockaddr *)&their_addr, &sin_size)) == -1) {
            printf("acceptn");
            continue;
        }

        if ((retval=fork())==0) {
            close(sockfd);
            if (send(new_fd, "Hello, world!n", 14, 0) == -1)
                perror("send");
            close(new_fd);
            exit(0);
            ~~~~~~~~~~~~~//这里fork没有释放
        }else if(retval