mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-20 11:11:24 +00:00
5efaea4cc6
permitted by the University of Berkeley on July 22, 1999. Reviewed by: imp MFC after: 1 week
158 lines
3.7 KiB
C
158 lines
3.7 KiB
C
/*
|
|
* Copyright (c) 1989, 1993
|
|
* The Regents of the University of California. 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. Neither the name of the University 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 THE REGENTS 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 THE REGENTS 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.
|
|
*/
|
|
|
|
#ifndef lint
|
|
#if 0
|
|
static const char sccsid[] = "@(#)getgrent.c 8.2 (Berkeley) 3/21/94";
|
|
#endif
|
|
static const char rcsid[] =
|
|
"$FreeBSD$";
|
|
#endif /* not lint */
|
|
|
|
/*
|
|
* This is a slightly modified chunk of getgrent(3). All the YP support
|
|
* and unneeded functions have been stripped out.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <grp.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
FILE *_gr_fp;
|
|
static struct group _gr_group;
|
|
static int _gr_stayopen;
|
|
static int grscan(int, int);
|
|
static int start_gr(void);
|
|
|
|
#define MAXGRP 200
|
|
static char *members[MAXGRP];
|
|
#define MAXLINELENGTH 1024
|
|
static char line[MAXLINELENGTH];
|
|
|
|
struct group *
|
|
_getgrent(void)
|
|
{
|
|
if (!_gr_fp && !start_gr()) {
|
|
return NULL;
|
|
}
|
|
|
|
|
|
if (!grscan(0, 0))
|
|
return(NULL);
|
|
return(&_gr_group);
|
|
}
|
|
|
|
static int
|
|
start_gr(void)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
int
|
|
_setgroupent(int stayopen)
|
|
{
|
|
if (!start_gr())
|
|
return(0);
|
|
_gr_stayopen = stayopen;
|
|
return(1);
|
|
}
|
|
|
|
int
|
|
_setgrent(void)
|
|
{
|
|
return(_setgroupent(0));
|
|
}
|
|
|
|
void
|
|
_endgrent(void)
|
|
{
|
|
if (_gr_fp) {
|
|
(void)fclose(_gr_fp);
|
|
_gr_fp = NULL;
|
|
}
|
|
}
|
|
|
|
static int
|
|
grscan(int search, int gid)
|
|
{
|
|
char *cp, **m;
|
|
char *bp;
|
|
for (;;) {
|
|
if (!fgets(line, sizeof(line), _gr_fp))
|
|
return(0);
|
|
bp = line;
|
|
/* skip lines that are too big */
|
|
if (!strchr(line, '\n')) {
|
|
int ch;
|
|
|
|
while ((ch = getc(_gr_fp)) != '\n' && ch != EOF)
|
|
;
|
|
continue;
|
|
}
|
|
if ((_gr_group.gr_name = strsep(&bp, ":\n")) == NULL)
|
|
break;
|
|
if (_gr_group.gr_name[0] == '+')
|
|
continue;
|
|
if ((_gr_group.gr_passwd = strsep(&bp, ":\n")) == NULL)
|
|
break;
|
|
if (!(cp = strsep(&bp, ":\n")))
|
|
continue;
|
|
_gr_group.gr_gid = atoi(cp);
|
|
if (search && _gr_group.gr_gid != gid)
|
|
continue;
|
|
cp = NULL;
|
|
if (bp == NULL) /* !! Must check for this! */
|
|
break;
|
|
for (m = _gr_group.gr_mem = members;; bp++) {
|
|
if (m == &members[MAXGRP - 1])
|
|
break;
|
|
if (*bp == ',') {
|
|
if (cp) {
|
|
*bp = '\0';
|
|
*m++ = cp;
|
|
cp = NULL;
|
|
}
|
|
} else if (*bp == '\0' || *bp == '\n' || *bp == ' ') {
|
|
if (cp) {
|
|
*bp = '\0';
|
|
*m++ = cp;
|
|
}
|
|
break;
|
|
} else if (cp == NULL)
|
|
cp = bp;
|
|
}
|
|
*m = NULL;
|
|
return(1);
|
|
}
|
|
/* NOTREACHED */
|
|
return (0);
|
|
}
|