/* copy2.c */

#include <stdio.h>
#include <stdlib.h>

main(int argc, char *argv[])
{
    char s[BUFSIZ];

    /* Open optional input file */
    if (argc > 1)
        if (freopen(argv[1],"r",stdin) == NULL)
            return EXIT_FAILURE;

    /* Open optional output file */
    if (argc > 2)
        if (freopen(argv[2],"w",stdout) == NULL)
            return EXIT_FAILURE;

    while (gets(s))
        puts(s);
    return EXIT_SUCCESS;
}

