src/id.h

/*-
 * 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: src/usr.sbin/ppp/id.h,v 1.16.26.1 2010/12/21 17:10:29 kensmith Exp $
 */

#ifndef NOSUID
struct utmp;
struct sockaddr_un;

extern void ID0init(void);
extern uid_t ID0realuid(void);
extern int ID0ioctl(int, unsigned long, void *);
extern int ID0unlink(const char *);
extern int ID0socket(int, int, int);
extern FILE *ID0fopen(const char *, const char *);
extern int ID0open(const char *, int, ...);
extern int ID0write(int, const void *, size_t);
extern int ID0uu_lock(const char *);
extern int ID0uu_lock_txfr(const char *, pid_t);
extern int ID0uu_unlock(const char *);
extern void ID0login(struct utmp *);
extern void ID0logout(const char *, int);
extern int ID0bind_un(int, const struct sockaddr_un *);
extern int ID0connect_un(int, const struct sockaddr_un *);
extern int ID0kill(pid_t, int);
#if defined(__FreeBSD__) && !defined(NOKLDLOAD)
extern int ID0kldload(const char *);
#endif
#ifndef NONETGRAPH
extern int ID0NgMkSockNode(const char *, int *, int *);
#endif
#else	/* NOSUID */
#define ID0init()
#define ID0realuid() (0)
#define ID0ioctl ioctl
#define ID0unlink unlink
#define ID0socket socket
#define ID0fopen fopen
#define ID0open open
#define ID0write write
#define ID0uu_lock uu_lock
#define ID0uu_lock_txfr uu_lock_txfr
#define ID0uu_unlock uu_unlock
#define ID0login(u)			\
  do {					\
    if (logout((u)->ut_line))		\
      logwtmp((u)->ut_line, "", "");	\
    login(u);				\
  } while (0)
#define ID0logout(dev, no)				\
  do {							\
    struct utmp ut;					\
    strncpy(ut.ut_line, dev, sizeof ut.ut_line - 1);	\
    ut.ut_line[sizeof ut.ut_line - 1] = '\0';		\
    if (no || logout(ut.ut_line))			\
      logwtmp(ut.ut_line, "", ""); 			\
  } while (0)
#define ID0bind_un(s, n) bind(s, (const struct sockaddr *)(n), sizeof *(n))
#define ID0connect_un(s, n) \
	connect(s, (const struct sockaddr *)(n), sizeof *(n))
#define ID0kill kill
#if defined(__FreeBSD__) && !defined(NOKLDLOAD)
#include <sys/param.h>
#include <sys/linker.h>
#define ID0kldload kldload
#endif
#ifndef NONETGRAPH
#define ID0NgMkSockNode NgMkSockNode
#endif
#endif