183 lines
3.8 KiB
C
183 lines
3.8 KiB
C
/*-
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* Copyright (c) 1997 Brian Somers <brian@Awfulhak.org>
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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* $Id: id.c,v 1.4 1997/12/21 12:11:05 brian Exp $
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*/
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sysexits.h>
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#include <unistd.h>
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#include "command.h"
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#include "mbuf.h"
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#include "log.h"
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#include "main.h"
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#ifdef __OpenBSD__
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#include <util.h>
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#else
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#include <libutil.h>
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#endif
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#include "id.h"
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static int uid;
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static int gid;
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static int euid;
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static int egid;
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void
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ID0init()
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{
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uid = getuid();
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gid = getgid();
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euid = geteuid();
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egid = getegid();
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}
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static void
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ID0setuser(void)
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{
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if (seteuid(uid) == -1) {
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LogPrintf(LogERROR, "ID0setuser: Unable to seteuid!\n");
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Cleanup(EX_NOPERM);
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}
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}
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uid_t
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ID0realuid()
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{
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return uid;
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}
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static void
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ID0set0(void)
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{
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if (seteuid(euid) == -1) {
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LogPrintf(LogERROR, "ID0set0: Unable to seteuid!\n");
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Cleanup(EX_NOPERM);
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}
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}
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int
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ID0ioctl(int fd, unsigned long req, void *arg)
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{
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int ret;
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ID0set0();
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ret = ioctl(fd, req, arg);
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LogPrintf(LogID0, "%d = ioctl(%d, %d, %p)\n", ret, fd, req, arg);
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ID0setuser();
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return ret;
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}
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int
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ID0unlink(const char *name)
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{
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int ret;
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ID0set0();
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ret = unlink(name);
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LogPrintf(LogID0, "%d = unlink(\"%s\")\n", ret, name);
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ID0setuser();
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return ret;
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}
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int
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ID0socket(int domain, int type, int protocol)
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{
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int ret;
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ID0set0();
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ret = socket(domain, type, protocol);
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LogPrintf(LogID0, "%d = socket(%d, %d, %d)\n", ret, domain, type, protocol);
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ID0setuser();
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return ret;
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}
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FILE *
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ID0fopen(const char *path, const char *mode)
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{
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FILE *ret;
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ID0set0();
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ret = fopen(path, mode);
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LogPrintf(LogID0, "%p = fopen(\"%s\", \"%s\")\n", ret, path, mode);
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ID0setuser();
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return ret;
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}
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int
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ID0open(const char *path, int flags)
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{
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int ret;
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ID0set0();
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ret = open(path, flags);
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LogPrintf(LogID0, "%d = open(\"%s\", %d)\n", ret, path, flags);
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ID0setuser();
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return ret;
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}
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int
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ID0write(int fd, const void *data, size_t len)
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{
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int ret;
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ID0set0();
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ret = write(fd, data, len);
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LogPrintf(LogID0, "%d = write(%d, data, %d)\n", ret, fd, len);
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ID0setuser();
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return ret;
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}
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int
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ID0uu_lock(const char *basettyname)
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{
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int ret;
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ID0set0();
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ret = uu_lock(basettyname);
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LogPrintf(LogID0, "%d = uu_lock(\"%s\")\n", ret, basettyname);
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ID0setuser();
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return ret;
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}
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int
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ID0uu_unlock(const char *basettyname)
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{
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int ret;
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ID0set0();
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ret = uu_unlock(basettyname);
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LogPrintf(LogID0, "%d = uu_unlock(\"%s\")\n", ret, basettyname);
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ID0setuser();
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return ret;
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}
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