dist/ntp/sntp/kludges.h

   1 /*      $NetBSD$        */
   2
   3 /*  Copyright (C) 1996, 2000 N.M. Maclaren
   4     Copyright (C) 1996, 2000 The University of Cambridge
   5
   6 This includes all of the kludges necessary for certain broken systems.  It is
   7 called after all other headers.  All of the modules set a flag to say which
   8 they are, but none of the current kludges critically need that information. */
   9
  10
  11
  12 /* stdlib.h is broken under SunOS4. */
  13
  14 #ifndef EXIT_SUCCESS
  15 #define EXIT_SUCCESS       0
  16 #define EXIT_FAILURE       1
  17 #endif
  18
  19
  20
  21 /* stdio.h is also broken under SunOS4. */
  22
  23 #ifndef SEEK_SET
  24 #define SEEK_SET           0
  25 #endif
  26
  27
  28
  29 /* netinet/in.h sometimes omits INADDR_LOOPBACK, or makes it conditional on
  30 peculiar preprocessor symbols. */
  31
  32 #ifndef INADDR_LOOPBACK
  33 #define INADDR_LOOPBACK    0x7f000001ul
  34 #endif
  35
  36
  37
  38 /* HP-UX up to version 9.x does not have adjtime, so make it fail.  This needs
  39 a flag setting in Makefile. */
  40
  41 #ifdef ADJTIME_MISSING
  42 #define adjtime(x,y)       1
  43 #endif
  44
  45
  46
  47 /* O_NONBLOCK doesn't work under Ultrix 4.3.  This needs a flag setting in
  48 Makefile. */
  49
  50 #ifdef NONBLOCK_BROKEN
  51 #ifdef O_NONBLOCK
  52 #undef O_NONBLOCK
  53 #endif
  54 #define O_NONBLOCK         O_NDELAY
  55 #endif
  56
  57
  58
  59 /* Some older systems use EWOULDBLOCK rather than EAGAIN, but don't assume that
  60 it is defined.  The differences are not relevant to this program. */
  61
  62 #ifndef EWOULDBLOCK
  63 #define EWOULDBLOCK        EAGAIN
  64 #endif