1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <string.h>
4 #include <sys/socket.h>
5 #include <netinet/in.h>
6 #include <unistd.h>
7
8 void handle_client(int client_socket) {
9 char response[] = "HTTP/1.1 200 OK\nContent-Type: text/html\n\n<html><body><h1>Hello, this is a simple web server!</h1></body></html>\n";
10 send(client_socket, response, strlen(response), 0);
11 close(client_socket);
12 }
13
14 int main() {
15 int server_fd, new_socket;
16 struct sockaddr_in address;
17 int opt = 1;
18 int addrlen = sizeof(address);
19
20 if ((server_fd = socket(AF_INET, SOCK_STREAM, 0)) == 0) {
21 perror("socket failed");
22 exit(EXIT_FAILURE);
23 }
24
25 if (setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR | SO_REUSEPORT, &opt, sizeof(opt))) {
26 perror("setsockopt");
27 exit(EXIT_FAILURE);
28 }
29
30 address.sin_family = AF_INET;
31 address.sin_addr.s_addr = INADDR_ANY;
32 address.sin_port = htons(8080);
33
34 if (bind(server_fd, (struct sockaddr *)&address, sizeof(address))<0) {
35 perror("bind failed");
36 exit(EXIT_FAILURE);
37 }
38
39 if (listen(server_fd, 3) < 0) {
40 perror("listen");
41 exit(EXIT_FAILURE);
42 }
43
44 while (1) {
45 if ((new_socket = accept(server_fd, (struct sockaddr *)&address, (socklen_t*)&addrlen))<0) {
46 perror("accept");
47 exit(EXIT_FAILURE);
48 }
49 handle_client(new_socket);
50 }
51 return 0;
52 }
1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <string.h>
4 #include <sys/socket.h>
5 #include <netinet/in.h>
6 #include <unistd.h>
7 #include <arpa/inet.h>
8
9 int main() {
10 struct sockaddr_in serv_addr;
11 int sock = 0, valread;
12 char buffer[1024] = {0};
13 if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
14 printf("\n Socket creation error \n");
15 return -1;
16 }
17 serv_addr.sin_family = AF_INET;
18 serv_addr.sin_port = htons(8080);
19 if(inet_pton(AF_INET, "127.0.0.1", &serv_addr.sin_addr)<=0) {
20 printf("\nInvalid address/ Address not supported \n");
21 return -1;
22 }
23 if (connect(sock, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) < 0) {
24 printf("\nConnection Failed \n");
25 return -1;
26 }
27 char message[] = "GET / HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n";
28 send(sock, message, strlen(message), 0);
29
30 while ((valread = read(sock, buffer, 1023)) > 0) {
31 buffer[valread] = '\0';
32 printf("%s", buffer);
33 }
34
35 return 0;
36 }
