148 lines
3.0 KiB
C
148 lines
3.0 KiB
C
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/*
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* Copyright (c) 1996, 1998 by Internet Software Consortium.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
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* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
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* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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#if !defined(LINT) && !defined(CODECENTER)
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static char rcsid[] = "$Id: getgrent.c,v 1.13 1998/03/21 00:59:47 halley Exp $";
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#endif
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/* Imports */
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#include "port_before.h"
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#ifndef WANT_IRS_GR
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static int __bind_irs_gr_unneeded;
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#else
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#include <sys/types.h>
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#include <errno.h>
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#include <grp.h>
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#include <stdio.h>
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#include <irs.h>
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#include "port_after.h"
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#include "irs_data.h"
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/* Forward */
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static struct irs_gr * init(void);
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void endgrent(void);
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/* Public */
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struct group *
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getgrent() {
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struct irs_gr *gr = init();
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if (!gr)
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return (NULL);
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net_data.gr_last = (*gr->next)(gr);
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return (net_data.gr_last);
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}
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struct group *
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getgrnam(const char *name) {
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struct irs_gr *gr = init();
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if (!gr)
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return (NULL);
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if (net_data.gr_stayopen && net_data.gr_last &&
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!strcmp(net_data.gr_last->gr_name, name))
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return (net_data.gr_last);
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net_data.gr_last = (*gr->byname)(gr, name);
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if (!net_data.gr_stayopen)
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endgrent();
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return (net_data.gr_last);
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}
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struct group *
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getgrgid(gid_t gid) {
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struct irs_gr *gr = init();
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if (!gr)
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return (NULL);
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if (net_data.gr_stayopen && net_data.gr_last &&
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net_data.gr_last->gr_gid == gid)
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return (net_data.gr_last);
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net_data.gr_last = (*gr->bygid)(gr, gid);
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if (!net_data.gr_stayopen)
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endgrent();
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return (net_data.gr_last);
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}
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int
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setgroupent(int stayopen) {
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struct irs_gr *gr = init();
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if (!gr)
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return (0);
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(*gr->rewind)(gr);
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net_data.gr_stayopen = (stayopen != 0);
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return (1);
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}
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#ifdef SETGRENT_VOID
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void
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setgrent() {
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(void)setgroupent(0);
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}
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#else
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int
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setgrent() {
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return (setgroupent(0));
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}
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#endif /* SETGRENT_VOID */
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void
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endgrent() {
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struct irs_gr *gr = init();
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if (gr != NULL)
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(*gr->minimize)(gr);
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}
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int
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getgrouplist(const char *name, gid_t basegid, gid_t *groups, int *ngroups) {
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struct irs_gr *gr = init();
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if (!gr) {
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*ngroups = 0;
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return (-1);
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}
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return ((*gr->list)(gr, name, basegid, groups, ngroups));
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}
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/* Private */
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static struct irs_gr *
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init() {
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if (!net_data_init())
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goto error;
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if (!net_data.gr)
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net_data.gr = (*net_data.irs->gr_map)(net_data.irs);
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if (!net_data.gr) {
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error:
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errno = EIO;
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return (NULL);
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}
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return (net_data.gr);
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}
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#endif /* WANT_IRS_GR */
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