76 lines
2.0 KiB
C
76 lines
2.0 KiB
C
#include <arpa/inet.h>
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <sys/socket.h>
|
|
#include <unistd.h>
|
|
|
|
#define PORT 8080
|
|
#define BUFFER_SIZE 1024
|
|
|
|
int main() {
|
|
char buffer[BUFFER_SIZE];
|
|
char resp[] = "HTTP/1.0 200\r\n"
|
|
"Server: webserver-c\r\n"
|
|
"Content-type: text/html\r\n\r\n"
|
|
"<html>hello, world</html>\r\n";
|
|
|
|
// create a socket
|
|
int sockfd = socket(AF_INET, SOCK_STREAM, 0);
|
|
if (sockfd == -1) {
|
|
perror("webserve (socket)");
|
|
return 1;
|
|
}
|
|
printf("socket created successfully\n");
|
|
|
|
// create the address to bind the socket to
|
|
struct sockaddr_in host_addr;
|
|
int host_addrlen = sizeof(host_addr);
|
|
|
|
host_addr.sin_family = AF_INET;
|
|
host_addr.sin_port = htons(PORT);
|
|
host_addr.sin_addr.s_addr = htonl(INADDR_ANY);
|
|
|
|
// Bind the socket to the address
|
|
if (bind(sockfd, (struct sockaddr *)&host_addr, host_addrlen) != 0) {
|
|
perror("webserver (bind)");
|
|
return 1;
|
|
}
|
|
printf("socket successfully bound to address\n");
|
|
|
|
// listen to incoming connections
|
|
if (listen(sockfd, SOMAXCONN) != 0) {
|
|
perror("webserver (listen)");
|
|
return 1;
|
|
}
|
|
printf("server listening for connections\n");
|
|
|
|
for (;;) {
|
|
// accept incoming connections
|
|
int newsockfd = accept(sockfd, (struct sockaddr *)&host_addr, (socklen_t *)&host_addrlen);
|
|
if (newsockfd < 0) {
|
|
perror("webserver (accept)");
|
|
continue;
|
|
}
|
|
printf("connection accepted\n");
|
|
|
|
// read from the socket
|
|
int valread = read(newsockfd, buffer, BUFFER_SIZE);
|
|
if (valread < 0) {
|
|
perror("webserver (read)");
|
|
continue;
|
|
}
|
|
|
|
// write to the socket
|
|
int valwrite = write(newsockfd, resp, strlen(resp));
|
|
if (valwrite < 0) {
|
|
perror("webserver (write)");
|
|
continue;
|
|
}
|
|
|
|
close(newsockfd);
|
|
}
|
|
|
|
return 0;
|
|
}
|