lib/unixcompat.h

   1 /** \file unixcompat.h
   2  *  \brief Header: collects differences between the various Unix
   3  *
   4  *  This header file collects differences between the various Unix
   5  *  variants that are supported by the Midnight Commander and provides
   6  *  replacement routines if they are not natively available.
   7  *  The major/minor macros are not specified in SUSv3, so we can only hope
   8  *  they are provided by the operating system or emulate it.
   9  */
  10
  11 #ifndef MC_UNIXCOMPAT_H
  12 #define MC_UNIXCOMPAT_H
  13
  14 #include <sys/types.h>          /* BSD */
  15 #ifdef HAVE_SYS_MKDEV_H
  16 #include <sys/mkdev.h>          /* Solaris 9 */
  17 #endif
  18 #if defined(_AIX) && defined(HAVE_SYS_SYSMACROS_H)
  19 #include <sys/sysmacros.h>      /* AIX */
  20 #endif
  21
  22 #if defined(_AIX)
  23 #include <time.h>               /* AIX for tm */
  24 #endif
  25
  26 /*** typedefs(not structures) and defined constants **********************************************/
  27
  28 #ifndef major
  29 #warning major() is undefined. Device numbers will not be shown correctly.
  30 #define major(devnum) (((devnum) >> 8) & 0xff)
  31 #endif
  32
  33 #ifndef minor
  34 #warning minor() is undefined. Device numbers will not be shown correctly.
  35 #define minor(devnum) (((devnum) & 0xff))
  36 #endif
  37
  38 #ifndef makedev
  39 #warning makedev() is undefined. Device numbers will not be shown correctly.
  40 #define makedev(major,minor) ((((major) & 0xff) << 8) | ((minor) & 0xff))
  41 #endif
  42
  43 /*** enums ***************************************************************************************/
  44
  45 /*** structures declarations (and typedefs of structures)*****************************************/
  46
  47 /*** global variables defined in .c file *********************************************************/
  48
  49 /*** declarations of public functions ************************************************************/
  50
  51 /*** inline functions ****************************************************************************/
  52
  53 #endif