usr/src/lib/libc/string/strpbrk.c

/*
 * Copyright (c) 1985 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)strpbrk.c   5.5 (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */

char *
strpbrk(s1, s2)
        register char *s1, *s2;
{
        register int c, sc;
        register char *scanp;

        for (; c = *s1; ++s1)
                for (scanp = s2; sc = *scanp++;)
                        if (sc == c)
                                return(s1);
        return(0);
}