dvd

#include <stdio.h>#include <sys/types.h>#include <sys/socket.h>#include <netinet/in.h>#include <arpa/inet.h>#include <string.h>#include <stdlib.h>#include <errno.h>//#include <netinet/tcp.h>void trocas(unsigned char **host,unsigned char **file,unsigned char *hostEfile);void criar_pedido(unsigned char **dest,unsigned char *url);int main (int argc,char *argv[]) {	int s;	//int len;	struct sockaddr_in sbase;	//struct tcp_info status;	s=socket(AF_INET,SOCK_STREAM,0);	sbase.sin_family=AF_INET;	sbase.sin_port=htons(80);	sbase.sin_addr.s_addr=inet_addr("127.0.0.1");	memset(&sbase.sin_zero,0x00,8);	if (connect(s,(struct sockaddr *)&sbase,sizeof(sbase)) == -1) {		printf("%s\n",strerror(errno));		exit(0);	}	//len=sizeof(status);	//getsockopt(s,SOL_TCP,TCP_INFO,&status,&len);	if (argc<2) exit(0);	unsigned char *pkt;	criar_pedido(&pkt,argv[1]);	send(s,pkt,strlen(pkt)+1,0);	//printf("%s\n",pkt);	return 0;}void criar_pedido(unsigned char **dest,unsigned char *url) {	unsigned char *host=NULL,*file=NULL;	if (strchr(url,'/'))		trocas(&host,&file,url);	else {		host=calloc(strlen(url)+1,1);		strcpy(host,url);		file=calloc(2,1);		*file='/';	}	*dest=malloc(83+strlen(url));	sprintf(*dest,		"GET %s HTTP/1.0\r\n"		"User-Agent: dvd/0.1\r\n"		"Accept: */*\r\n"		"Host: %s\r\n"		"Connection: Keep-Alive\r\n\r\n"	,file,host);}void trocas(unsigned char **host,unsigned char **file,unsigned char *hostEfile) {	unsigned int x;	for(x=0;*(hostEfile+x) != '/';x++);	*host=calloc(x,1);	memcpy(*host,hostEfile,x);	*file=calloc(strlen(hostEfile)-x,1);	memcpy(*file,hostEfile+x,strlen(hostEfile)-x);}