Gyyyn/main.cpp

## main.cpp
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <arpa/inet.h>
#include <err.h>

char response[] = "HTTP/1.1 200 OK\r\n"
"Content-Type: text/html; charset=UTF-8\r\n\r\n"
"<!DOCTYPE html><html><head><title>Bye-bye baby bye-bye</title>"
"<style>body { background-color: #111 }"
"h1 { font-size:4cm; text-align: center; color: black;"
" text-shadow: 0 0 2mm red}</style></head>"
"<body><h1>Goodbye, world!</h1></body></html>\r\n";

int main()
{
  int one = 1, client_fd;
  struct sockaddr_in svr_addr, cli_addr;
  socklen_t sin_len = sizeof(cli_addr);

  int sock = socket(AF_INET, SOCK_STREAM, 0);
  if (sock < 0)
    err(1, "can't open socket");

  setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(int));

  int port = 8080;
  svr_addr.sin_family = AF_INET;
  svr_addr.sin_addr.s_addr = INADDR_ANY;
  svr_addr.sin_port = htons(port);

  if (bind(sock, (struct sockaddr *) &svr_addr, sizeof(svr_addr)) == -1) {
    close(sock);
    err(1, "Can't bind");
  }

  listen(sock, 5);
  while (1) {
    client_fd = accept(sock, (struct sockaddr *) &cli_addr, &sin_len);
    printf("got connection\n");

    if (client_fd == -1) {
      perror("Can't accept");
      continue;
    }

    write(client_fd, response, sizeof(response) - 1); /*-1:'\0'*/
    close(client_fd);
  }
}
	#include <stdio.h>
	#include <stdlib.h>
	#include <unistd.h>
	#include <sys/types.h>
	#include <sys/socket.h>
	#include <netinet/in.h>
	#include <netdb.h>
	#include <arpa/inet.h>
	#include <err.h>

	char response[] = "HTTP/1.1 200 OK\r\n"
	"Content-Type: text/html; charset=UTF-8\r\n\r\n"
	"<!DOCTYPE html><html><head><title>Bye-bye baby bye-bye</title>"
	"<style>body { background-color: #111 }"
	"h1 { font-size:4cm; text-align: center; color: black;"
	" text-shadow: 0 0 2mm red}</style></head>"
	"<body><h1>Goodbye, world!</h1></body></html>\r\n";

	int main()
	{
	int one = 1, client_fd;
	struct sockaddr_in svr_addr, cli_addr;
	socklen_t sin_len = sizeof(cli_addr);

	int sock = socket(AF_INET, SOCK_STREAM, 0);
	if (sock < 0)
	err(1, "can't open socket");

	setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(int));

	int port = 8080;
	svr_addr.sin_family = AF_INET;
	svr_addr.sin_addr.s_addr = INADDR_ANY;
	svr_addr.sin_port = htons(port);

	if (bind(sock, (struct sockaddr *) &svr_addr, sizeof(svr_addr)) == -1) {
	close(sock);
	err(1, "Can't bind");
	}

	listen(sock, 5);
	while (1) {
	client_fd = accept(sock, (struct sockaddr *) &cli_addr, &sin_len);
	printf("got connection\n");

	if (client_fd == -1) {
	perror("Can't accept");
	continue;
	}

	write(client_fd, response, sizeof(response) - 1); /-1:'\0'/
	close(client_fd);
	}
	}