to create a socket to read image from url in linux - sockets

Question

I want to write a socket program which read an image from an url and store it at a location.
I am familiar with basic of socket programming but never created such type of socket.
Below is the code to create a socket to read data from client which i want to modify for above mentioned problem.
Please help me with this.
Thank you
Code::
include<stdio.h>
#include<unistd.h>
#include<netinet/in.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<arpa/inet.h>
#include<netdb.h>
#include<errno.h>
#include<stdlib.h>
#define sport 5000
int main(int argc,char **argv[])//Main function
{
struct sockaddr_in serveraddr;
int m,sd,acceptsd,rc,i;
char command[]="hello\n";
if((sd=socket(AF_INET,SOCK_STREAM,0))<0)
{
perror("error in socket creation\n");
exit(0);
}
memset(&serveraddr,0,sizeof(serveraddr));
serveraddr.sin_family=AF_INET;
serveraddr.sin_port=htons(sport);
serveraddr.sin_addr.s_addr=(INADDR_ANY);
//serveraddr.sin_addr.s_addr=inet_addr("127.0.0.1");
rc=bind(sd,(struct sockaddr *)&serveraddr,sizeof(serveraddr));
if(rc<0)
{
perror("srver bind error\n");
close(sd);
exit(-1);
}
rc=listen(sd,5);
if(rc<0)
{
perror("listen error");
close(sd);
exit(-1);
}
printf("server is ready to accept connection\n");
printf("\n");
acceptsd=accept(sd,NULL,NULL);
if(acceptsd<0)
{
perror("error in accepting\n");
exit(-1);
close(sd);
}
rc=send(acceptsd,command2,sizeof(command2),0);
if(rc<0)
{
perror("error in sending\n");
close(acceptsd);
close(sd);
exit(-1);
}
close(acceptsd);
close(sd);
exit(0);
}

Answer 1

The code needs to use TCP sockets and implement HTTP protocol to be able to access any URLs.
Implementing HTTP protocol handling on your own is a daunting and labour intensive task. A good start would be using libcurl.