/** \file unixcompat.h
 *  \brief Header: collects differences between the various Unix
 *
 *  This header file collects differences between the various Unix
 *  variants that are supported by the Midnight Commander and provides
 *  replacement routines if they are not natively available.
 *  The major/minor macros are not specified in SUSv3, so we can only hope
 *  they are provided by the operating system or emulate it.
 */

#ifndef MC_UNIXCOMPAT_H
#define MC_UNIXCOMPAT_H

#include <fcntl.h>   // O_* macros
#include <signal.h>  // sig_atomic_t
#include <unistd.h>

#include <sys/types.h>  // BSD

#ifdef MAJOR_IN_MKDEV
#    include <sys/mkdev.h>
#elif defined MAJOR_IN_SYSMACROS
#    include <sys/sysmacros.h>
#endif

#if defined(HAVE_STRING_H)
#    include <string.h>
// An ANSI string.h and pre-ANSI memory.h might conflict
#elif defined(HAVE_MEMORY_H)
#    include <memory.h>
#else
#    include <strings.h>
// memory and strings.h conflict on other systems
#endif

#if defined(__QNX__) && !defined(__QNXNTO__)
/* exec*() from <process.h> */
#    include <unix.h>
#endif

/*** typedefs(not structures) and defined constants **********************************************/

#ifndef major
#    warning major() is undefined. Device numbers will not be shown correctly.
#    define major(devnum) (((devnum) >> 8) & 0xff)
#endif

#ifndef minor
#    warning minor() is undefined. Device numbers will not be shown correctly.
#    define minor(devnum) (((devnum) & 0xff))
#endif

#ifndef makedev
#    warning makedev() is undefined. Device numbers will not be shown correctly.
#    define makedev(major, minor) ((((major) & 0xff) << 8) | ((minor) & 0xff))
#endif

#ifndef STDIN_FILENO
#    define STDIN_FILENO 0
#endif

#ifndef STDOUT_FILENO
#    define STDOUT_FILENO 1
#endif

#ifndef STDERR_FILENO
#    define STDERR_FILENO 2
#endif

/* The O_BINARY definition was taken from gettext */
#if !defined O_BINARY && defined _O_BINARY
// For MSC-compatible compilers.
#    define O_BINARY _O_BINARY
#endif
#ifdef __BEOS__
// BeOS 5 has O_BINARY, but it has no effect.
#    undef O_BINARY
#endif
/* On reasonable systems, binary I/O is the default.  */
#ifndef O_BINARY
#    define O_BINARY 0
#endif

/* Replacement for O_NONBLOCK */
#ifndef O_NONBLOCK
#    ifdef O_NDELAY  // SYSV
#        define O_NONBLOCK O_NDELAY
#    else  // BSD
#        define O_NONBLOCK FNDELAY
#    endif
#endif

/* Solaris9 doesn't have PRIXMAX */
#ifndef PRIXMAX
#    define PRIXMAX PRIxMAX
#endif

/* ESC_CHAR is defined in /usr/include/langinfo.h in some systems */
#ifdef ESC_CHAR
#    undef ESC_CHAR
#endif
/* AIX compiler doesn't understand '\e' */
#define ESC_CHAR '\033'
#define ESC_STR  "\033"

/* OS specific defines */
#define PATH_SEP                       '/'
#define PATH_SEP_STR                   "/"
#define IS_PATH_SEP(c)                 ((c) == PATH_SEP)
#define PATH_ENV_SEP                   ':'
#define TMPDIR_DEFAULT                 "/tmp"
#define SCRIPT_SUFFIX                  ""
#define get_default_editor()           "vi"
#define OS_SORT_CASE_SENSITIVE_DEFAULT TRUE

/*** enums ***************************************************************************************/

/*** structures declarations (and typedefs of structures)*****************************************/

/*** global variables defined in .c file *********************************************************/

/*** declarations of public functions ************************************************************/

/*** inline functions ****************************************************************************/

#endif
