pread.c

Unix编程例子

#include <stdio.h>
int main(int argc, char *argv[])
{
	int fd, nbyte, i;
	char buf[1024];
	fd = strtol(argv[1], 0, 0);
	while((nbyte = read(fd, buf, sizeof buf)) > 0){
		printf("%d bytes received:\n", nbyte);
		write(1, buf, nbyte);
	}
	close(fd);
}