root/lib/unixcompat.h

/*   */

INCLUDED FROM

   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 <fcntl.h>   // O_* macros
  15 #include <signal.h>  // sig_atomic_t
  16 #include <unistd.h>
  17 
  18 #include <sys/types.h>  // BSD
  19 
  20 #ifdef MAJOR_IN_MKDEV
  21 #include <sys/mkdev.h>
  22 #elif defined MAJOR_IN_SYSMACROS
  23 #include <sys/sysmacros.h>
  24 #endif
  25 
  26 #if defined(HAVE_STRING_H)
  27 #include <string.h>
  28 // An ANSI string.h and pre-ANSI memory.h might conflict
  29 #elif defined(HAVE_MEMORY_H)
  30 #include <memory.h>
  31 #else
  32 #include <strings.h>
  33 // memory and strings.h conflict on other systems
  34 #endif
  35 
  36 #if defined(__QNX__) && !defined(__QNXNTO__)
  37 /* exec*() from <process.h> */
  38 #include <unix.h>
  39 #endif
  40 
  41 /*** typedefs(not structures) and defined constants **********************************************/
  42 
  43 #ifndef major
  44 #warning major() is undefined. Device numbers will not be shown correctly.
  45 #define major(devnum) (((devnum) >> 8) & 0xff)
  46 #endif
  47 
  48 #ifndef minor
  49 #warning minor() is undefined. Device numbers will not be shown correctly.
  50 #define minor(devnum) (((devnum) & 0xff))
  51 #endif
  52 
  53 #ifndef makedev
  54 #warning makedev() is undefined. Device numbers will not be shown correctly.
  55 #define makedev(major, minor) ((((major) & 0xff) << 8) | ((minor) & 0xff))
  56 #endif
  57 
  58 #ifndef STDIN_FILENO
  59 #define STDIN_FILENO 0
  60 #endif
  61 
  62 #ifndef STDOUT_FILENO
  63 #define STDOUT_FILENO 1
  64 #endif
  65 
  66 #ifndef STDERR_FILENO
  67 #define STDERR_FILENO 2
  68 #endif
  69 
  70 #ifndef HAVE_STRUCT_DIRENT_D_TYPE
  71 #define DT_UNKNOWN 0
  72 #define DT_DIR     101  // the value doesn't matter, just needs to be different from DT_UNKNOWN
  73 #define DT_LNK     102  // ditto
  74 #endif
  75 
  76 /* The O_BINARY definition was taken from gettext */
  77 #if !defined O_BINARY && defined _O_BINARY
  78 // For MSC-compatible compilers.
  79 #define O_BINARY _O_BINARY
  80 #endif
  81 #ifdef __BEOS__
  82 // BeOS 5 has O_BINARY, but it has no effect.
  83 #undef O_BINARY
  84 #endif
  85 /* On reasonable systems, binary I/O is the default.  */
  86 #ifndef O_BINARY
  87 #define O_BINARY 0
  88 #endif
  89 
  90 /* Replacement for O_NONBLOCK */
  91 #ifndef O_NONBLOCK
  92 #ifdef O_NDELAY  // SYSV
  93 #define O_NONBLOCK O_NDELAY
  94 #else  // BSD
  95 #define O_NONBLOCK FNDELAY
  96 #endif
  97 #endif
  98 
  99 /* Solaris9 doesn't have PRIXMAX */
 100 #ifndef PRIXMAX
 101 #define PRIXMAX PRIxMAX
 102 #endif
 103 
 104 /* ESC_CHAR is defined in /usr/include/langinfo.h in some systems */
 105 #ifdef ESC_CHAR
 106 #undef ESC_CHAR
 107 #endif
 108 /* AIX compiler doesn't understand '\e' */
 109 #define ESC_CHAR '\033'
 110 #define ESC_STR  "\033"
 111 
 112 /* OS specific defines */
 113 #define PATH_SEP                       '/'
 114 #define PATH_SEP_STR                   "/"
 115 #define IS_PATH_SEP(c)                 ((c) == PATH_SEP)
 116 #define PATH_ENV_SEP                   ':'
 117 #define TMPDIR_DEFAULT                 "/tmp"
 118 #define SCRIPT_SUFFIX                  ""
 119 #define get_default_editor()           "vi"
 120 #define OS_SORT_CASE_SENSITIVE_DEFAULT TRUE
 121 
 122 /*** enums ***************************************************************************************/
 123 
 124 /*** structures declarations (and typedefs of structures)*****************************************/
 125 
 126 /*** global variables defined in .c file *********************************************************/
 127 
 128 /*** declarations of public functions ************************************************************/
 129 
 130 /*** inline functions ****************************************************************************/
 131 
 132 #endif

/*   */