text: /*
   * Copyright 1990, John F. Haugh II
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. All advertising materials mentioning features or use of this software
   *    must display the following acknowledgement:
   *	This product includes software developed by John F. Haugh, II
   *      and other contributors.
   * 4. Neither the name of John F. Haugh, II nor the names of its contributors
   *    may be used to endorse or promote products derived from this software
   *    without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY JOHN HAUGH AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL JOHN HAUGH OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   */
  
  #include <config.h>
  
  #include "rcsid.h"
  RCSID("$Id: grpack.c,v 1.1.1.1 1996/08/10 07:59:51 marekm Exp $")
  
  #include <stdio.h>
  #include <grp.h>
  
  #include "defines.h"
  
  int
  gr_pack(group, buf)
  	const struct group *group;
  	char *buf;
  {
  	char	*cp;
  	int	i;
  
  	cp = buf;
  	strcpy (cp, group->gr_name);
  	cp += strlen (cp) + 1;
  
  	strcpy (cp, group->gr_passwd);
  	cp += strlen (cp) + 1;
  
  	memcpy (cp, (const char *) &group->gr_gid, sizeof group->gr_gid);
  	cp += sizeof group->gr_gid;
  
  	for (i = 0;group->gr_mem[i];i++) {
  		strcpy (cp, group->gr_mem[i]);
  		cp += strlen (cp) + 1;
  	}
  	*cp++ = '\0';
  
  	return cp - buf;
  }
  
  int
  gr_unpack(buf, len, group)
  	char *buf;
  	int len;
  	struct group *group;
  {
  	char	*org = buf;
  	int	i;
  
  	group->gr_name = buf;
  	buf += strlen (buf) + 1;
  	if (buf - org > len)
  		return -1;
  
  	group->gr_passwd = buf;
  	buf += strlen (buf) + 1;
  	if (buf - org > len)
  		return -1;
  
  	memcpy ((char *) &group->gr_gid, (char *) buf, sizeof group->gr_gid);
  	buf += sizeof group->gr_gid;
  	if (buf - org > len)
  		return -1;
  
  	for (i = 0;*buf && i < 1024;i++) {
  		group->gr_mem[i] = buf;
  		buf += strlen (buf) + 1;
  
  		if (buf - org > len)
  			return -1;
  	}
  	group->gr_mem[i] = (char *) 0;
  	return 0;
  }
  