8.1/main.c


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#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include "filecopy.h"
#include "error.h"

int main(int argc, char *argv[])
{
	ssize_t fd;

	if (argc == 1) {
		filecopy(STDIN_FILENO, STDOUT_FILENO);
	} else {
		while (--argc > 0) {
			if ((fd = open(*++argv, O_RDONLY)) == -1) {
				error("cp: can't open %s", *argv);
			} else {
				filecopy(fd, STDOUT_FILENO);
				close(fd);
			}
		}
	}

	return 0;
}