250 lines
5.6 KiB
C
250 lines
5.6 KiB
C
/*
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* Copyright (c) 1989 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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static char sccsid[] = "@(#)getgrent.c 5.9 (Berkeley) 4/1/91";
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#endif /* LIBC_SCCS and not lint */
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#define _KERNEL
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#include "ixnet.h"
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#include <sys/types.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <grp.h>
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/* for AS225 */
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#undef _PATH_GROUP
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#define _PATH_GROUP "/inet/db/group"
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static int grscan(), start_gr();
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#define MAXGRP 200
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#define MAXLINELENGTH 1024
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struct group *
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getgrent(void)
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{
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usetup;
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register struct ixnet *p = (struct ixnet *)u.u_ixnet;
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if (p->u_networkprotocol == IX_NETWORK_AMITCP) {
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return UG_getgrent();
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}
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if ((!u.u_grp_fp && !start_gr()) || !grscan(0, 0, NULL))
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return(NULL);
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return(&u.u_group);
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}
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struct group *
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getgrnam(const char *name)
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{
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usetup;
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register struct ixnet *p = (struct ixnet *)u.u_ixnet;
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if (p->u_networkprotocol == IX_NETWORK_AMITCP) {
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struct group *err = UG_getgrnam(name);
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if (!err) {
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errno = ug_GetErr();
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}
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return err;
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}
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else {
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int rval;
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if (!start_gr())
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return(NULL);
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rval = grscan(1, 0, name);
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if (!u.u_grp_stayopen)
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endgrent();
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return(rval ? &u.u_group : NULL);
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}
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}
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struct group *
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getgrgid(gid_t gid)
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{
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usetup;
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register struct ixnet *p = (struct ixnet *)u.u_ixnet;
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if (p->u_networkprotocol == IX_NETWORK_AMITCP) {
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struct group *err;
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err = UG_getgrgid(gid);
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if (!err) {
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errno = ug_GetErr();
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}
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return err;
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}
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else {
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int rval;
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if (!start_gr())
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return(NULL);
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rval = grscan(1, gid, NULL);
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if (!u.u_grp_stayopen)
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endgrent();
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return(rval ? &u.u_group : NULL);
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}
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}
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static int
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start_gr(void)
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{
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usetup;
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if (u.u_grp_fp) {
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rewind(u.u_grp_fp);
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return(1);
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}
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return((u.u_grp_fp = fopen(_PATH_GROUP, "r")) ? 1 : 0);
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}
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int
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setgrent(void)
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{
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usetup;
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register struct ixnet *p = (struct ixnet *)u.u_ixnet;
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if (p->u_networkprotocol == IX_NETWORK_AMITCP) {
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UG_setgrent();
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return 1;
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}
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return setgroupent(0);
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}
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int
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setgroupent(int stayopen)
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{
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usetup;
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register struct ixnet *p = (struct ixnet *)u.u_ixnet;
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if (p->u_networkprotocol == IX_NETWORK_AMITCP) {
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UG_setgrent();
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return 1;
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}
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if (!start_gr())
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return(0);
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u.u_grp_stayopen = stayopen;
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return 1;
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}
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void
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endgrent(void)
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{
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usetup;
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register struct ixnet *p = (struct ixnet *)u.u_ixnet;
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if (p->u_networkprotocol == IX_NETWORK_AMITCP) {
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UG_endgrent();
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}
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if (u.u_grp_fp) {
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(void)fclose(u.u_grp_fp);
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u.u_grp_fp = NULL;
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}
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}
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static int
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grscan(int search, int gid, char *name)
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{
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usetup;
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register char *cp, **m;
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char *bp;
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char *fgets(), *strsep(), *index();
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if (u.u_grp_line == NULL)
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u.u_grp_line = malloc(MAXLINELENGTH + 1);
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if (u.u_members == NULL)
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u.u_members = malloc(MAXGRP * sizeof(char *));
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if (u.u_grp_line == NULL || u.u_members == NULL)
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{
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errno = ENOMEM;
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return 0;
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}
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for (;;) {
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if (!fgets(u.u_grp_line, MAXLINELENGTH, u.u_grp_fp))
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return(0);
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bp = u.u_grp_line;
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/* skip lines that are too big */
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if (!index(u.u_grp_line, '\n')) {
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int ch;
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while ((ch = getc(u.u_grp_fp)) != '\n' && ch != EOF)
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;
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continue;
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}
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u.u_group.gr_name = strsep(&bp, "|\n");
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if (search && name && strcmp(u.u_group.gr_name, name))
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continue;
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u.u_group.gr_passwd = strsep(&bp, "|\n");
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if (!(cp = strsep(&bp, "|\n")))
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continue;
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u.u_group.gr_gid = atoi(cp);
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if (search && name == NULL && u.u_group.gr_gid != gid)
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continue;
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for (m = u.u_group.gr_mem = u.u_members;; ++m) {
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if (m == &u.u_members[MAXGRP - 1]) {
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*m = NULL;
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break;
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}
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if ((*m = strsep(&bp, ", \n")) == NULL)
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break;
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}
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return(1);
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}
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/* NOTREACHED */
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}
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int
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setgroups (int ngroups, const int *gidset)
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{
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usetup;
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struct ixnet *p = u.u_ixnet;
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if (p->u_networkprotocol == IX_NETWORK_AMITCP)
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return UG_setgroups(ngroups,gidset);
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return (ngroups >= 1) ? 0 : -1;
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}
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