帮我写一个SimpleTCP代码
时间: 2023-03-31 11:01:01 浏览: 128
好的,我可以帮您写一个SimpleTCP代码。以下是一个简单的示例:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#define PORT 808
int main() {
int sockfd, newsockfd, valread;
struct sockaddr_in address;
int addrlen = sizeof(address);
char buffer[1024] = {};
char *hello = "Hello from server";
// Create socket file descriptor
if ((sockfd = socket(AF_INET, SOCK_STREAM, )) == ) {
perror("socket failed");
exit(EXIT_FAILURE);
}
// Set socket options
int opt = 1;
if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR | SO_REUSEPORT, &opt, sizeof(opt))) {
perror("setsockopt");
exit(EXIT_FAILURE);
}
// Bind socket to port
address.sin_family = AF_INET;
address.sin_addr.s_addr = INADDR_ANY;
address.sin_port = htons(PORT);
if (bind(sockfd, (struct sockaddr *)&address, sizeof(address)) < ) {
perror("bind failed");
exit(EXIT_FAILURE);
}
// Listen for incoming connections
if (listen(sockfd, 3) < ) {
perror("listen");
exit(EXIT_FAILURE);
}
// Accept incoming connection
if ((newsockfd = accept(sockfd, (struct sockaddr *)&address, (socklen_t*)&addrlen)) < ) {
perror("accept");
exit(EXIT_FAILURE);
}
// Read data from client
valread = read(newsockfd, buffer, 1024);
printf("%s\n", buffer);
// Send data to client
send(newsockfd, hello, strlen(hello), );
printf("Hello message sent\n");
return ;
}
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