freebsd-dev/usr.sbin/ppp/id.c
Pedro F. Giffuni 1de7b4b805 various: general adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

No functional change intended.
2017-11-27 15:37:16 +00:00

295 lines
6.1 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 1997 Brian Somers <brian@Awfulhak.org>
* 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.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#ifndef NONETGRAPH
#include <netgraph.h>
#endif
#include <signal.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <sysexits.h>
#if defined(__FreeBSD__) && !defined(NOKLDLOAD)
#include <sys/linker.h>
#endif
#include <unistd.h>
#ifdef __OpenBSD__
#include <util.h>
#else
#include <libutil.h>
#endif
#include <utmpx.h>
#include "log.h"
#include "main.h"
#include "id.h"
static int uid;
static int euid;
void
ID0init()
{
uid = getuid();
euid = geteuid();
}
static void
ID0setuser(void)
{
if (seteuid(uid) == -1) {
log_Printf(LogERROR, "ID0setuser: Unable to seteuid!\n");
AbortProgram(EX_NOPERM);
}
}
uid_t
ID0realuid()
{
return uid;
}
static void
ID0set0(void)
{
if (seteuid(euid) == -1) {
log_Printf(LogERROR, "ID0set0: Unable to seteuid!\n");
AbortProgram(EX_NOPERM);
}
}
int
ID0ioctl(int fd, unsigned long req, void *arg)
{
int ret;
ID0set0();
ret = ioctl(fd, req, arg);
log_Printf(LogID0, "%d = ioctl(%d, %lu, %p)\n", ret, fd, req, arg);
ID0setuser();
return ret;
}
int
ID0unlink(const char *name)
{
int ret;
ID0set0();
ret = unlink(name);
log_Printf(LogID0, "%d = unlink(\"%s\")\n", ret, name);
ID0setuser();
return ret;
}
int
ID0socket(int domain, int type, int protocol)
{
int ret;
ID0set0();
ret = socket(domain, type, protocol);
log_Printf(LogID0, "%d = socket(%d, %d, %d)\n", ret, domain, type, protocol);
ID0setuser();
return ret;
}
FILE *
ID0fopen(const char *path, const char *mode)
{
FILE *ret;
ID0set0();
ret = fopen(path, mode);
log_Printf(LogID0, "%p = fopen(\"%s\", \"%s\")\n", ret, path, mode);
ID0setuser();
return ret;
}
int
ID0open(const char *path, int flags, ...)
{
int ret;
va_list ap;
va_start(ap, flags);
ID0set0();
ret = open(path, flags, va_arg(ap, int));
log_Printf(LogID0, "%d = open(\"%s\", %d)\n", ret, path, flags);
ID0setuser();
va_end(ap);
return ret;
}
int
ID0write(int fd, const void *data, size_t len)
{
int ret;
ID0set0();
ret = write(fd, data, len);
log_Printf(LogID0, "%d = write(%d, data, %ld)\n", ret, fd, (long)len);
ID0setuser();
return ret;
}
int
ID0uu_lock(const char *basettyname)
{
int ret;
ID0set0();
ret = uu_lock(basettyname);
log_Printf(LogID0, "%d = uu_lock(\"%s\")\n", ret, basettyname);
ID0setuser();
return ret;
}
int
ID0uu_lock_txfr(const char *basettyname, pid_t newpid)
{
int ret;
ID0set0();
ret = uu_lock_txfr(basettyname, newpid);
log_Printf(LogID0, "%d = uu_lock_txfr(\"%s\", %ld)\n", ret, basettyname,
(long)newpid);
ID0setuser();
return ret;
}
int
ID0uu_unlock(const char *basettyname)
{
int ret;
ID0set0();
ret = uu_unlock(basettyname);
log_Printf(LogID0, "%d = uu_unlock(\"%s\")\n", ret, basettyname);
ID0setuser();
return ret;
}
void
ID0login(const struct utmpx *ut)
{
ID0set0();
pututxline(ut);
log_Printf(LogID0, "pututxline(\"%.*s\", \"%.*s\", \"%.*s\", \"%.*s\")\n",
(int)sizeof ut->ut_id, ut->ut_id,
(int)sizeof ut->ut_user, ut->ut_user,
(int)sizeof ut->ut_line, ut->ut_line,
(int)sizeof ut->ut_host, ut->ut_host);
ID0setuser();
}
void
ID0logout(const struct utmpx *ut)
{
ID0set0();
pututxline(ut);
log_Printf(LogID0, "pututxline(\"%.*s\")\n",
(int)sizeof ut->ut_id, ut->ut_id);
ID0setuser();
}
int
ID0bind_un(int s, const struct sockaddr_un *name)
{
int result;
ID0set0();
result = bind(s, (const struct sockaddr *)name, sizeof *name);
log_Printf(LogID0, "%d = bind(%d, \"%s\", %d)\n",
result, s, name->sun_path, (int)sizeof(*name));
ID0setuser();
return result;
}
int
ID0connect_un(int s, const struct sockaddr_un *name)
{
int result;
ID0set0();
result = connect(s, (const struct sockaddr *)name, sizeof *name);
log_Printf(LogID0, "%d = connect(%d, \"%s\", %d)\n",
result, s, name->sun_path, (int)sizeof(*name));
ID0setuser();
return result;
}
int
ID0kill(pid_t pid, int sig)
{
int result;
ID0set0();
result = kill(pid, sig);
log_Printf(LogID0, "%d = kill(%ld, %d)\n", result, (long)pid, sig);
ID0setuser();
return result;
}
#if defined(__FreeBSD__) && !defined(NOKLDLOAD)
int
ID0kldload(const char *dev)
{
int result;
ID0set0();
result = kldload(dev);
log_Printf(LogID0, "%d = kldload(\"%s\")\n", result, dev);
ID0setuser();
return result;
}
#endif
#ifndef NONETGRAPH
int
ID0NgMkSockNode(const char *name, int *cs, int *ds)
{
int result;
ID0set0();
result = NgMkSockNode(name, cs, ds);
log_Printf(LogID0, "%d = NgMkSockNode(\"%s\", &cs, &ds)\n",
result, name ? name : "");
ID0setuser();
return result;
}
#endif