C语言实现udp客户端根据输入的ip，端口，发包大小和发包间隔实现通讯代码

可以实现UDP客户端通讯的代码如下，其中包括了输入IP地址、端口号、数据包大小和发送间隔时间的参数：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <sys/socket.h>

int main(int argc, char *argv[])
{
    if (argc < 5) {
        printf("Usage: %s <ip> <port> <packet_size> <interval>\n", argv[0]);
        return -1;
    }

    // 解析IP地址
    char *ip = argv[1];
    struct hostent *host = gethostbyname(ip);
    if (host == NULL) {
        printf("Invalid IP address\n");
        return -1;
    }
    struct in_addr ipv4addr = { 0 };
    memcpy(&ipv4addr, host->h_addr_list[0], sizeof(ipv4addr));

    // 获取端口号
    int port = atoi(argv[2]);

    // 获取包大小
    int packet_size = atoi(argv[3]);
    if (packet_size <= 0) {
        printf("Invalid packet size\n");
        return -1;
    }
    char *packet_data = (char*) malloc(packet_size);
    memset(packet_data, 'A', packet_size);

    // 获取发送间隔
    int interval = atoi(argv[4]);

    // 创建套接字
    int sockfd = socket(AF_INET, SOCK_DGRAM, 0);
    if (sockfd < 0) {
        printf("Failed to create socket\n");
        return -1;
    }

    // 绑定套接字
    struct sockaddr_in addr = { 0 };
    addr.sin_family = AF_INET;
    addr.sin_addr = ipv4addr;
    addr.sin_port = htons(port);
    if (bind(sockfd, (struct sockaddr*) &addr, sizeof(addr)) < 0) {
        printf("Failed to bind socket\n");
        return -1;
    }

    // 发送数据包
    struct sockaddr_in server_addr = { 0 };
    server_addr.sin_family = AF_INET;
    server_addr.sin_addr = ipv4addr;
    server_addr.sin_port = htons(port);

    while (1) {
        if (sendto(sockfd, packet_data, packet_size, 0, (struct sockaddr*) &server_addr, sizeof(server_addr)) < 0) {
            printf("Failed to send data packet\n");
            break;
        }

        usleep(interval);
    }

    // 关闭套接字
    close(sockfd);

    return 0;
}

希望能够帮到你！