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/*-
* Copyright (c) 1999, Peter Wemm <peter@netplex.com.au>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*/
/*
* A cheap hack to put a paper thick fence in front of /home/ncvs
* and a replacement of the ncvs priviliged group.
*/
#include <sys/types.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <pwd.h>
#include <err.h>
#define ACCESS "/home/ncvs/CVSROOT/access"
#define REALCVS "/usr/bin/ncvs"
char linebuf[1024];
int
main(int ac, char **av)
{
FILE *fp;
uid_t uid;
struct passwd *pw;
char *p, *s;
int karma;
karma = 0;
#if 0
/* not such a good idea if cvs is called from the commitlog scripts */
if (getgid() == getegid())
errx(1, "fatal: not installed setgid correctly!");
#endif
fp = fopen(ACCESS, "r");
if (fp == NULL)
err(1, "cannot open %s", ACCESS);
uid = getuid();
pw = getpwuid(uid);
if (pw == NULL)
err(1, "you don't exist! (getpwuid(3) failed)");
while ((p = fgets(linebuf, sizeof(linebuf) - 1, fp)) != NULL) {
while ((s = strsep(&p, " \t\n")) != NULL) {
if (*s == '\0')
continue; /* whitespace */
if (*s == '#' || *s == '/' || *s == ';')
break; /* comment */
if (strcmp(s, pw->pw_name) == 0) {
karma++;
break;
}
break; /* ignore further tokens on line for now */
}
}
fclose(fp);
if (karma > 0) {
if (setgid(getegid()) < 0)
err(1, "setgid(getegid()) failed!");
} else {
if (setgid(getgid()) < 0)
err(1, "setgid(getgid()) failed!");
/* tell cvs to not bother trying to create locks */
putenv("CVSREADONLYFS=true");
}
execv(REALCVS, av);
err(1, "cannot execv(%s)", REALCVS);
}
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