教你快速搭建一个udp服务器

UDP 服务器端的例子：

#include "lib/common.h"

static int count;

static void recvfrom_int(int signo) {
   
    printf("\nreceived %d datagrams\n", count);
    exit(0);
}


int main(int argc, char **argv) {
   
    int socket_fd;
    socket_fd = socket(AF_INET, SOCK_DGRAM, 0);

    struct sockaddr_in server_addr;
    bzero(&server_addr, sizeof(server_addr));
    server_addr.sin_family = AF_INET;
    server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
    server_addr.sin_port = htons(SERV_PORT);

    bind(socket_fd, (struct sockaddr *) &server_addr, sizeof(server_addr));

    socklen_t client_len;
    char message