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/*
* Copyright (c) 1996, 1998-2003 Todd C. Miller <Todd.Miller@courtesan.com>
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 4. Products derived from this software may not be called "Sudo" nor
* may "Sudo" appear in their names without specific prior written
* permission from the author.
*
* THIS SOFTWARE IS PROVIDED ``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 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.
*
* $Sudo: compat.h,v 1.66 2003/04/02 18:25:19 millert Exp $
*/
#ifndef _SUDO_COMPAT_H
#define _SUDO_COMPAT_H
/*
* Macros that may be missing on some Operating Systems
*/
/* Deal with ANSI stuff reasonably. */
#ifndef __P
# if defined (__cplusplus) || defined (__STDC__)
# define __P(args) args
# else
# define __P(args) ()
# endif
#endif /* __P */
/*
* Some systems (ie ISC V/386) do not define MAXPATHLEN even in param.h
*/
#ifndef MAXPATHLEN
# define MAXPATHLEN 1024
#endif
/*
* Some systems do not define MAXHOSTNAMELEN.
*/
#ifndef MAXHOSTNAMELEN
# define MAXHOSTNAMELEN 64
#endif
/*
* 4.2BSD lacks FD_* macros (we only use FD_SET and FD_ZERO)
*/
#ifndef FD_SETSIZE
# define FD_SET(fd, fds) ((fds) -> fds_bits[0] |= (1 << (fd)))
# define FD_ZERO(fds) ((fds) -> fds_bits[0] = 0)
#endif /* !FD_SETSIZE */
/*
* Posix versions for those without...
*/
#ifndef _S_IFMT
# define _S_IFMT S_IFMT
#endif /* _S_IFMT */
#ifndef _S_IFREG
# define _S_IFREG S_IFREG
#endif /* _S_IFREG */
#ifndef _S_IFDIR
# define _S_IFDIR S_IFDIR
#endif /* _S_IFDIR */
#ifndef _S_IFLNK
# define _S_IFLNK S_IFLNK
#endif /* _S_IFLNK */
#ifndef S_ISREG
# define S_ISREG(m) (((m) & _S_IFMT) == _S_IFREG)
#endif /* S_ISREG */
#ifndef S_ISDIR
# define S_ISDIR(m) (((m) & _S_IFMT) == _S_IFDIR)
#endif /* S_ISDIR */
/*
* Some OS's may not have this.
*/
#ifndef S_IRWXU
# define S_IRWXU 0000700 /* rwx for owner */
#endif /* S_IRWXU */
/*
* In case this is not defined in <sys/types.h> or <sys/select.h>
*/
#ifndef howmany
# define howmany(x, y) (((x) + ((y) - 1)) / (y))
#endif
/*
* These should be defined in <unistd.h> but not everyone has them.
*/
#ifndef STDIN_FILENO
# define STDIN_FILENO 0
#endif
#ifndef STDOUT_FILENO
# define STDOUT_FILENO 1
#endif
#ifndef STDERR_FILENO
# define STDERR_FILENO 2
#endif
/*
* These should be defined in <unistd.h> but not everyone has them.
*/
#ifndef SEEK_SET
# define SEEK_SET 0
#endif
#ifndef SEEK_CUR
# define SEEK_CUR 1
#endif
#ifndef SEEK_END
# define SEEK_END 2
#endif
/*
* BSD defines these in <sys/param.h> but others may not.
*/
#ifndef MIN
# define MIN(a,b) (((a)<(b))?(a):(b))
#endif
#ifndef MAX
# define MAX(a,b) (((a)>(b))?(a):(b))
#endif
/*
* Simple isblank() macro for systems without it.
*/
#ifndef HAVE_ISBLANK
# define isblank(_x) ((_x) == ' ' || (_x) == '\t')
#endif
/*
* Old BSD systems lack strchr(), strrchr(), memset() and memcpy()
*/
#if !defined(HAVE_STRCHR) && !defined(strchr)
# define strchr(_s, _c) index(_s, _c)
#endif
#if !defined(HAVE_STRRCHR) && !defined(strrchr)
# define strrchr(_s, _c) rindex(_s, _c)
#endif
#if !defined(HAVE_MEMCPY) && !defined(memcpy)
# define memcpy(_d, _s, _n) (bcopy(_s, _d, _n))
#endif
#if !defined(HAVE_MEMSET) && !defined(memset)
# define memset(_s, _x, _n) (bzero(_s, _n))
#endif
/*
* NCR's SVr4 has _innetgr(3) instead of innetgr(3) for some reason.
*/
#ifdef HAVE__INNETGR
# define innetgr(n, h, u, d) (_innetgr(n, h, u, d))
# define HAVE_INNETGR 1
#endif /* HAVE__INNETGR */
/*
* On POSIX systems, O_NOCTTY is the default so some OS's may lack this define.
*/
#ifndef O_NOCTTY
# define O_NOCTTY 0
#endif /* O_NOCTTY */
/*
* Emulate POSIX signals via sigvec(2)
*/
#ifndef HAVE_SIGACTION
# define SA_ONSTACK SV_ONSTACK
# define SA_RESTART SV_INTERRUPT /* opposite effect */
# define SA_RESETHAND SV_RESETHAND
# define sa_handler sv_handler
# define sa_mask sv_mask
# define sa_flags sv_flags
typedef struct sigvec sigaction_t;
typedef int sigset_t;
int sigaction __P((int sig, const sigaction_t *act, sigaction_t *oact));
int sigemptyset __P((sigset_t *));
int sigfillset __P((sigset_t *));
int sigaddset __P((sigset_t *, int));
int sigdelset __P((sigset_t *, int));
int sigismember __P((sigset_t *, int));
int sigprocmask __P((int, const sigset_t *, sigset_t *));
#endif
/*
* Extra sugar for POSIX signals to deal with the above emulation
* as well as the fact that SunOS has a SA_INTERRUPT flag.
*/
#ifdef HAVE_SIGACTION
# ifndef HAVE_SIGACTION_T
typedef struct sigaction sigaction_t;
# endif
# ifndef SA_INTERRUPT
# define SA_INTERRUPT 0
# endif
# ifndef SA_RESTART
# define SA_RESTART 0
# endif
#endif
/*
* HP-UX 9.x has RLIMIT_* but no RLIM_INFINITY.
* Using -1 works because we only check for RLIM_INFINITY and do not set it.
*/
#ifndef RLIM_INFINITY
# define RLIM_INFINITY (-1)
#endif
/*
* If we lack getprogname(), emulate with __progname if possible.
* Otherwise, add a prototype for use with our own getprogname.c.
*/
#ifndef HAVE_GETPROGNAME
# ifdef HAVE___PROGNAME
extern const char *__progname;
# define getprogname() (__progname)
# else
const char *getprogname __P((void));
#endif /* HAVE___PROGNAME */
#endif /* !HAVE_GETPROGNAME */
#endif /* _SUDO_COMPAT_H */
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