Created
November 5, 2020 15:55
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WebServer in C
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| #include <stdio.h> | |
| #include <netdb.h> | |
| #include <netinet/in.h> | |
| #include <stdlib.h> | |
| #include <string.h> | |
| #include <sys/socket.h> | |
| #include <sys/types.h> | |
| #define MAX 1000 | |
| #define PORT 8080 | |
| #define SA struct sockaddr | |
| int main(){ | |
| int sockfd, connfd, len; | |
| struct sockaddr_in servaddr, cli; | |
| char buff[MAX]; | |
| sockfd = socket(AF_INET, SOCK_STREAM, 0); | |
| bzero(&servaddr, sizeof(servaddr)); | |
| servaddr.sin_family = AF_INET; | |
| servaddr.sin_addr.s_addr = htonl(INADDR_ANY); | |
| servaddr.sin_port = htons(PORT); | |
| bind(sockfd, (SA*)&servaddr, sizeof(servaddr)); | |
| listen(sockfd, 5); | |
| len = sizeof(cli); | |
| for(;;){ | |
| connfd = accept(sockfd, (SA*)&cli, &len); | |
| printf("New visitor!\n"); | |
| printf("IP : %d\n",ntohl(cli.sin_addr.s_addr)); | |
| printf("Port : %d\n",ntohs(cli.sin_port)); | |
| bzero(buff,MAX); | |
| read(connfd,buff,sizeof(buff)); | |
| printf("%s",buff); | |
| if (strncmp("\0",buff,1) != 0) { | |
| bzero(buff, MAX); | |
| strncpy(buff,"HTTP/1.1 400 Bad Request\nServer: Altilunium-WebServer (Ubuntu)\nContent-Length: 301\nConnection: close\nContent-Type: text/html\n\n<html><head><title>Altilunium-WebServer</title></head><body><h1>Altilunium-WebServer</h1><p>It's working!<br /></p><hr></body></html>",1000); | |
| write(connfd, buff, sizeof(buff)); | |
| } | |
| bzero(buff, MAX); | |
| } | |
| } |
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