/*
 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/*        All Rights Reserved   */

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

#include <stdio.h>
#include <locale.h>

int
hash(char *s)
{
        int c, n;
        for (n = 0; c = *s; s++)
                n += (c*n+ c << (n%4));
        return (n > 0 ? n : -n);
}

void
err(char *s, int a)
{
        fprintf(stderr, gettext("Error: "));
        fprintf(stderr, s, a);
        putc('\n', stderr);
        exit(1);
}

int
prefix(char *t, char *s)
{
        int c;

        while ((c = *t++) == *s++)
                if (c == 0)
                        return (1);
        return (c == 0 ? 1 : 0);
}

char *
mindex(char *s, char c)
{
        char *p;
        for (p = s; *p; p++)
                if (*p == c)
                        return (p);
        return (0);
}

void *
zalloc(size_t m, size_t n)
{
        char *calloc();
        void *t;
#if D1
        fprintf(stderr, "calling calloc for %d*%d bytes\n", m, n);
#endif
        t = calloc(m, n);
#if D1
        fprintf(stderr, "calloc returned %o\n", t);
#endif
        return (t);
}