usr/src/lib/libcompat/4.1/strcpyn.c

/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)strcpyn.c   4.3 (Berkeley) %G%";
#endif LIBC_SCCS and not lint

/*
 * Copy s2 to s1, truncating or null-padding to always copy n bytes
 * return s1
 */

char *
strcpyn(s1, s2, n)
register char *s1, *s2;
{
        register i;
        register char *os1;

        os1 = s1;
        for (i = 0; i < n; i++)
                if ((*s1++ = *s2++) == '\0') {
                        while (++i < n)
                                *s1++ = '\0';
                        return(os1);
                }
        return(os1);
}