putgrent.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI"
#include <stdio.h>
#include <grp.h>
#include <unistd.h>
/*
* putgrent() function to write a group structure to a file
* supports the use of group names that with + or -
*/
void
putgrent(struct group *grpstr, FILE *to)
{
char **memptr; /* member vector pointer */
if (grpstr->gr_name[0] == '+' || grpstr->gr_name[0] == '-') {
/*
* if the groupname starts with either a '+' or '-' then
* write out what we can as best as we can
* we assume that fgetgrent() set gr_gid to 0 so
* write a null entry instead of 0
* This should not break /etc/nsswitch.conf for any of
* "group: compat", "group: files", "group: nis"
*
*/
(void) fprintf(to, "%s:%s:", grpstr->gr_name,
grpstr->gr_passwd != NULL ? grpstr->gr_passwd : "");
if (grpstr->gr_gid == 0) {
(void) fprintf(to, ":");
} else {
(void) fprintf(to, "%ld:", grpstr->gr_gid);
}
memptr = grpstr->gr_mem;
while (memptr != NULL && *memptr != NULL) {
(void) fprintf(to, "%s", *memptr);
memptr++;
if (memptr != NULL && *memptr != NULL)
(void) fprintf(to, ",");
}
(void) fprintf(to, "\n");
} else {
/*
* otherwise write out all the fields in the group structure
*
*/
(void) fprintf(to, "%s:%s:%ld:", grpstr->gr_name,
grpstr->gr_passwd, grpstr->gr_gid);
memptr = grpstr->gr_mem;
while (*memptr != NULL) {
(void) fprintf(to, "%s", *memptr);
memptr++;
if (*memptr != NULL)
(void) fprintf(to, ",");
}
(void) fprintf(to, "\n");
}
}