/*
* Copyright (c) 1996, 1998-2005, 2008, 2009-2010
* Todd C. Miller <Todd.Miller@courtesan.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Sponsored in part by the Defense Advanced Research Projects
* Agency (DARPA) and Air Force Research Laboratory, Air Force
* Materiel Command, USAF, under agreement number F39502-99-1-0512.
*/
#ifndef _SUDO_MISSING_H
#define _SUDO_MISSING_H
#include <stdio.h>
#include <stdarg.h>
/*
* Macros and functions that may be missing on some operating systems.
*/
/* Define away __attribute__ for non-gcc or old gcc */
#if !defined(__GNUC__) || __GNUC__ < 2 || __GNUC__ == 2 && __GNUC_MINOR__ < 5
# define __attribute__(x)
#endif
/* For silencing gcc warnings about rcsids */
#ifndef __unused
# if defined(__GNUC__) && (__GNUC__ > 2 || __GNUC__ == 2 && __GNUC_MINOR__ > 7)
# define __unused __attribute__((__unused__))
# else
# define __unused
# endif
#endif
/* For catching format string mismatches */
#ifndef __printflike
# if defined(__GNUC__) && (__GNUC__ > 2 || __GNUC__ == 2 && __GNUC_MINOR__ >= 7)
# define __printflike(f, v) __attribute__((__format__ (__printf__, f, v)))
# else
# define __printflike(f, v)
# endif
#endif
/*
* Some systems lack full limit definitions.
*/
#ifndef OPEN_MAX
# define OPEN_MAX 256
#endif
#ifndef INT_MAX
# define INT_MAX 0x7fffffff
#endif
#ifndef PATH_MAX
# ifdef MAXPATHLEN
# define PATH_MAX MAXPATHLEN
# else
# ifdef _POSIX_PATH_MAX
# define PATH_MAX _POSIX_PATH_MAX
# else
# define PATH_MAX 1024
# endif
# endif
#endif
#ifndef MAXHOSTNAMELEN
# define MAXHOSTNAMELEN 64
#endif
/*
* 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 */
/*
* 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
/*
* 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 and function for systems without it.
*/
#ifndef HAVE_ISBLANK
int isblank(int);
# define isblank(_x) ((_x) == ' ' || (_x) == '\t')
#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 */
/*
* Add IRIX-like sigaction_t for those without it.
* SA_RESTART is not required by POSIX; SunOS has SA_INTERRUPT instead.
*/
#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
/*
* If dirfd() does not exists, hopefully dd_fd does.
*/
#if !defined(HAVE_DIRFD) && defined(HAVE_DD_FD)
# define dirfd(_d) ((_d)->dd_fd)
# define HAVE_DIRFD
#endif
/*
* Define futimes() in terms of futimesat() if needed.
*/
#if !defined(HAVE_FUTIMES) && defined(HAVE_FUTIMESAT)
# define futimes(_f, _tv) futimesat(_f, NULL, _tv)
# define HAVE_FUTIMES
#endif
#if !defined(HAVE_KILLPG) && !defined(killpg)
# define killpg(s) kill(-(s))
#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(void);
void setprogname(const char *);
#endif /* HAVE___PROGNAME */
#endif /* !HAVE_GETPROGNAME */
/*
* Declare errno if errno.h doesn't do it for us.
*/
#if defined(HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO
extern int errno;
#endif /* !HAVE_DECL_ERRNO */
#ifndef timevalclear
# define timevalclear(tv) ((tv)->tv_sec = (tv)->tv_usec = 0)
#endif
#ifndef timevalisset
# define timevalisset(tv) ((tv)->tv_sec || (tv)->tv_usec)
#endif
#ifndef timevalcmp
# define timevalcmp(tv1, tv2, op) \
(((tv1)->tv_sec == (tv2)->tv_sec) ? \
((tv1)->tv_usec op (tv2)->tv_usec) : \
((tv1)->tv_sec op (tv2)->tv_sec))
#endif
#ifndef timevaladd
# define timevaladd(tv1, tv2) \
do { \
(tv1)->tv_sec += (tv2)->tv_sec; \
(tv1)->tv_usec += (tv2)->tv_usec; \
if ((tv1)->tv_usec >= 1000000) { \
(tv1)->tv_sec++; \
(tv1)->tv_usec -= 1000000; \
} \
} while (0)
#endif
#ifndef timevalsub
# define timevalsub(tv1, tv2) \
do { \
(tv1)->tv_sec -= (tv2)->tv_sec; \
(tv1)->tv_usec -= (tv2)->tv_usec; \
if ((tv1)->tv_usec < 0) { \
(tv1)->tv_sec--; \
(tv1)->tv_usec += 1000000; \
} \
} while (0)
#endif
/* Not all systems define NSIG in signal.h */
#if !defined(NSIG)
# if defined(_NSIG)
# define NSIG _NSIG
# elif defined(__NSIG)
# define NSIG __NSIG
# else
# define NSIG 64
# endif
#endif
#ifndef WCOREDUMP
# define WCOREDUMP(x) ((x) & 0x80)
#endif
#ifndef HAVE_SETEUID
# if defined(HAVE_SETRESUID)
# define seteuid(u) setresuid(-1, (u), -1)
# define setegid(g) setresgid(-1, (g), -1)
# define HAVE_SETEUID 1
# elif defined(HAVE_SETREUID)
# define seteuid(u) setreuid(-1, (u))
# define setegid(g) setregid(-1, (g))
# define HAVE_SETEUID 1
# endif
#endif /* HAVE_SETEUID */
/*
* HP-UX does not declare innetgr() or getdomainname().
* Solaris does not declare getdomainname().
*/
#if defined(__hpux)
int innetgr(const char *, const char *, const char *, const char *);
#endif
#if defined(__hpux) || defined(__sun)
int getdomainname(char *, size_t);
#endif
/* Functions "missing" from libc. */
struct timeval;
struct timespec;
#ifndef HAVE_CLOSEFROM
void closefrom(int);
#endif
#ifndef HAVE_GETCWD
char *getcwd(char *, size_t size);
#endif
#ifndef HAVE_GETGROUPLIST
int getgrouplist(const char *, gid_t, gid_t *, int *);
#endif
#ifndef HAVE_GETLINE
ssize_t getline(char **, size_t *, FILE *);
#endif
#ifndef HAVE_UTIMES
int utimes(const char *, const struct timeval *);
#endif
#ifdef HAVE_FUTIME
int futimes(int, const struct timeval *);
#endif
#ifndef HAVE_SNPRINTF
int snprintf(char *, size_t, const char *, ...) __printflike(3, 4);
#endif
#ifndef HAVE_VSNPRINTF
int vsnprintf(char *, size_t, const char *, va_list) __printflike(3, 0);
#endif
#ifndef HAVE_ASPRINTF
int asprintf(char **, const char *, ...) __printflike(2, 3);
#endif
#ifndef HAVE_VASPRINTF
int vasprintf(char **, const char *, va_list) __printflike(2, 0);
#endif
#ifndef HAVE_STRLCAT
size_t strlcat(char *, const char *, size_t);
#endif
#ifndef HAVE_STRLCPY
size_t strlcpy(char *, const char *, size_t);
#endif
#ifndef HAVE_MEMRCHR
void *memrchr(const void *, int, size_t);
#endif
#ifndef HAVE_MKDTEMP
char *mkdtemp(char *);
#endif
#ifndef HAVE_MKSTEMPS
int mkstemps(char *, int);
#endif
#ifndef HAVE_NANOSLEEP
int nanosleep(const struct timespec *, struct timespec *);
#endif
#ifndef HAVE_SETENV
int setenv(const char *, const char *, int);
#endif
#ifndef HAVE_UNSETENV
int unsetenv(const char *);
#endif
#ifndef HAVE_STRSIGNAL
char *strsignal(int);
#endif
#endif /* _SUDO_MISSING_H */
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