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HTTP USING C


SERVER
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
int main()
{
int sock, connected, bytes_recieved , true = 1;
char send_data [1024] , recv_data[1024];
char rep[40]={"File Received"};
int s,i,f=0;
struct sockaddr_in server_addr,client_addr;
int sin_size;
if ((sock = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
perror("Socket");
exit(1);
}
if (setsockopt(sock,SOL_SOCKET,SO_REUSEADDR,&true,sizeof(int)) == -1)
{
perror("Setsockopt");
exit(1);
}
server_addr.sin_family = AF_INET;
server_addr.sin_port = htons(2500);
server_addr.sin_addr.s_addr = INADDR_ANY;
if (bind(sock, (struct sockaddr *)&server_addr, sizeof(struct sockaddr))
== -1)
{
perror("Unable to bind");
exit(1);
}
if (listen(sock, 5) == -1)
{
perror("Listen");
exit(1);
}
fflush(stdout);
while(1)
{
sin_size = sizeof(struct sockaddr_in);
connected = accept(sock, (struct sockaddr *)&client_addr,&sin_size);
while (1)
{
bytes_recieved = recv(connected,recv_data,1024,0);
recv_data[bytes_recieved] = '\0';
if(strcmp(recv_data,"\0")!=0)
{
printf("I got a file: %s", recv_data);
send(connected, rep,strlen(rep), 0);
}
else send(connected,"No file ",22,0);
fflush(stdout);
}
}
close(sock);
return 0;
}





CLIENT
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <netdb.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
int main()
{
int sock, bytes_recieved;
char send_data[1024],recv_data[1024];
struct hostent *host;
struct sockaddr_in server_addr;
host = gethostbyname("127.0.0.1");
if ((sock = socket(AF_INET, SOCK_STREAM, 0)) == -1)\
{
perror("Socket");
exit(1);
}
server_addr.sin_family = AF_INET;
server_addr.sin_port = htons(2500);
server_addr.sin_addr = *((struct in_addr *)host->h_addr);
bzero(&(server_addr.sin_zero),8);
if (connect(sock, (struct sockaddr *)&server_addr,
sizeof(struct sockaddr)) == -1)
{
perror("Connect");
exit(1);
}
while(1)
{
printf("\nEnter the file name : ");
gets(send_data);
if (strcmp(send_data , "q") != 0 && strcmp(send_data , "Q") != 0)
send(sock,send_data,strlen(send_data), 0);
else
{
send(sock,send_data,strlen(send_data), 0);
close(sock);
break;
}
bytes_recieved=recv(sock,recv_data,1024,0);
recv_data[bytes_recieved] = '\0';
if (strcmp(recv_data , "q") == 0 || strcmp(recv_data , "Q") == 0)
{
close(sock);
break;
}
else
printf("\n Acknowledgment from Server: %s " , recv_data);
}
return 0;
}












OUTPUT
SERVER
$ cc httpserver.c
$ ./a.out
I got a file: UNIX.doc
I got a file: UNIX.txt
I got a file: savee.txt

CLIENT
$ cc httpclient.c
$ ./a.out
Enter the file name : UNIXdoc
Acknowledgment from Server: File Received
Enter the file name : UNIX.txt
Acknowledgment from Server: File Received
Enter the file name : savee.txt
Acknowledgment from Server: File Received
Enter the file name :

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