usr/src/lib/libc/gen/initgroups.c

/*
 * Copyright (c) 1983 Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)initgroups.c        5.9 (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */

#include <sys/param.h>

#include <stdio.h>

int
initgroups(uname, agroup)
        const char *uname;
        int agroup;
{
        int groups[NGROUPS], ngroups;

        ngroups = NGROUPS;
        if (getgrouplist(uname, agroup, groups, &ngroups) < 0)
                warnx("%s is in too many groups, using first %d",
                    uname, ngroups);
        if (setgroups(ngroups, groups) < 0) {
                warn("setgroups");
                return (-1);
        }
        return (0);
}