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/* wwwget_to_file.c by phetips.** **************************** Connects to [char *hostname] on port [int port] and requests file ** [char *page] from the webserver. It then saves the page to [char ** *local_file] and returns the number of bytes written to file. The ** function returns -1 if an error occurs. ** ************************** */#include <stdio.h>#include <stdlib.h>#include <string.h>#include <sys/types.h>#include <sys/socket.h>#include <netinet/in.h>#include <netdb.h>#define BUFSIZE 256long wwwget_to_file(char *hostname, char *page, int port, char *local_file){  int sockfd, sent_n, recv_n; long total_bytes = 0;  struct sockaddr_in target;  struct hostent *h;  char *request; char response[BUFSIZE+1];  request = malloc(strlen(page) + 18);			//This is probably very, very, very   sprintf(request, "GET /%s HTTP/1.0\r\n\r\n", page);	//horrible... not sure. (Oh, and CRLF injection here!)  FILE *file;  if((file = fopen(local_file, "w")) == NULL)  return -1;  if((h = gethostbyname(hostname)) == NULL)  return -1;  target.sin_family   = AF_INET;  target.sin_port     = htons(port);  target.sin_addr     = *((struct in_addr *)h->h_addr);   if((sockfd= socket(PF_INET, SOCK_STREAM, 0)) == -1)  return -1;  if(connect(sockfd, (struct sockaddr *)&target, sizeof(struct sockaddr)) == -1)  return -1;	//Need some sort of  if((sent_n = send(sockfd, request, strlen(request), 0)) != strlen(request))  return -1;	//time-out in connect()  while((recv_n = recv(sockfd, response, BUFSIZE, 0)) > 0){    response[recv_n] = '\0';    total_bytes += fprintf(file, "%s", response);  }  fclose(file);  return total_bytes;}