#include <sys/types.h>
#include <sys/socket.h>
#include <sys/uio.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <netinet/in.h>
#include <string.h>
#include <errno.h>
#include <stdio.h>

int
main(int argc, char *argv[])
{
	int fd, s;
	struct sockaddr_in dst;
	struct stat st;
	int err;
	char a[1];
	
	fd = open(argv[1], O_WRONLY);
	if (fd == -1) {
		perror("open");
		return (1);
	}
	err = read(fd, a, 1);
	printf("read: %d %d\n", err, errno);
	s = socket(AF_INET, SOCK_STREAM, 0);
	if (s == -1) {
		perror("socket");
		return (1);
	}
	memset(&dst, 0, sizeof(dst));
	dst.sin_family = AF_INET;
	dst.sin_port = htons(5000);
	dst.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
	if (connect(s, (struct sockaddr *)&dst, sizeof(dst)) == -1) {
		perror("connect");
		return (1);
	}
	if (fstat(fd, &st) == -1) {
		perror("stat");
		return (1);
	}
	if (sendfile(fd, s, 0, st.st_size, NULL, NULL, 0) == -1) {
		perror("sendfile");
		return (1);
	}
	return (0);
}