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/**
* @filename: tcp_client.c
* @brief: tcp communication
* @author: philia
* @date: 2026/4/19
* @version: ver1.0
* @note 客户端发送消息，后运行
* CopyRight (c) 2026 philia All Right Reseverd
*/
#include <stdio.h>
#include <sys/types.h> /* See NOTES */
#include <sys/socket.h>
#include <netinet/ip.h> /* superset of previous */
#include <arpa/inet.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
int main(int argc, const char *argv[])
{
int tcp_socket = socket(AF_INET, SOCK_STREAM, 0);
if (tcp_socket == -1)
{
fprintf(stderr, "tcp_socket error, errno:%d,%s", errno, strerror(errno));
exit(-1);
}
struct sockaddr_in host_addr;
// hostaddr结构体赋值
host_addr.sin_family = AF_INET;
host_addr.sin_port = htons(60001);
host_addr.sin_addr.s_addr = INADDR_ANY;
// 绑定地址
bind(tcp_socket, (struct sockaddr *)&host_addr, sizeof(host_addr));
struct sockaddr_in dest_addr;
memset(&dest_addr, 0, sizeof(dest_addr)); // 清空结构体
dest_addr.sin_family = AF_INET; // IPv4
dest_addr.sin_port = htons(60001); // 端口号（转为网络字节序）
inet_pton(AF_INET, "192.168.10.121", &dest_addr.sin_addr); // 目标 IP
socklen_t size = sizeof(dest_addr);
int isconnect = connect(tcp_socket, (struct sockaddr *)&dest_addr, size);
if (isconnect != 0)
{
fprintf(stderr, "connect error, errno:%d,%s", errno, strerror(errno));
exit(-1);
}
// 发送
char buf[128] = {0};
while (1)
{
scanf(" %[^\n]", buf);
write(tcp_socket, &buf, sizeof(buf));
printf("write is [%s]\n", buf);
bzero(buf, sizeof(buf));
}
return 0;
}/**
* @filename: tcp_server.c
* @brief: tcp communication
* @author: philia
* @date: 2026/4/19
* @version: ver1.0
* @note 服务端接收消息，先运行
* CopyRight (c) 2026 philia All Right Reseverd
*/
#include <stdio.h>
#include <sys/types.h> /* See NOTES */
#include <sys/socket.h>
#include <netinet/ip.h> /* superset of previous */
#include <arpa/inet.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
int main(int argc, const char *argv[])
{
int tcp_socket = socket(AF_INET, SOCK_STREAM, 0);
if (tcp_socket == -1)
{
fprintf(stderr, "tcp_socket error, errno:%d,%s", errno, strerror(errno));
exit(-1);
}
struct sockaddr_in host_addr;
// hostaddr结构体赋值
host_addr.sin_family = AF_INET;
host_addr.sin_port = htons(60001);
host_addr.sin_addr.s_addr = INADDR_ANY;
// 绑定地址
bind(tcp_socket, (struct sockaddr *)&host_addr, sizeof(host_addr));
// 监听
listen(tcp_socket, 5);
// 接受
struct sockaddr_in dest_addr;
socklen_t size = sizeof(dest_addr);
int accepted_tcp = accept(tcp_socket, (struct sockaddr *)&dest_addr, &size);
// 读取消息
char buf[128] = {0};
while (1)
{
read(accepted_tcp, &buf, sizeof(buf));
printf("read is [%s]\n", buf);
bzero(buf, sizeof(buf));
}
return 0;
}
