include/types.h

   1 /* types.h - some common typedefs
   2  *      Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
   3  *
   4  * This file is part of GnuPG.
   5  *
   6  * GnuPG is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * GnuPG is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19  * USA.
  20  */
  21
  22 #ifndef G10_TYPES_H
  23 #define G10_TYPES_H
  24
  25 #ifdef HAVE_INTTYPES_H
  26 /* For uint64_t */
  27 #include <inttypes.h>
  28 #endif
  29
  30 /* The AC_CHECK_SIZEOF() in configure fails for some machines.
  31  * we provide some fallback values here */
  32 #if !SIZEOF_UNSIGNED_SHORT
  33 #undef SIZEOF_UNSIGNED_SHORT
  34 #define SIZEOF_UNSIGNED_SHORT 2
  35 #endif
  36 #if !SIZEOF_UNSIGNED_INT
  37 #undef SIZEOF_UNSIGNED_INT
  38 #define SIZEOF_UNSIGNED_INT 4
  39 #endif
  40 #if !SIZEOF_UNSIGNED_LONG
  41 #undef SIZEOF_UNSIGNED_LONG
  42 #define SIZEOF_UNSIGNED_LONG 4
  43 #endif
  44
  45
  46 #include <sys/types.h>
  47
  48
  49 #ifndef HAVE_BYTE_TYPEDEF
  50 #undef byte         /* maybe there is a macro with this name */
  51 #ifndef __riscos__
  52 typedef unsigned char byte;
  53 #else
  54 /* Norcroft treats char  = unsigned char  as legal assignment
  55                but char* = unsigned char* as illegal assignment
  56    and the same applies to the signed variants as well  */
  57 typedef char byte;
  58 #endif
  59 #define HAVE_BYTE_TYPEDEF
  60 #endif
  61
  62 #ifndef HAVE_USHORT_TYPEDEF
  63 #undef ushort     /* maybe there is a macro with this name */
  64 typedef unsigned short ushort;
  65 #define HAVE_USHORT_TYPEDEF
  66 #endif
  67
  68 #ifndef HAVE_ULONG_TYPEDEF
  69 #undef ulong        /* maybe there is a macro with this name */
  70 typedef unsigned long ulong;
  71 #define HAVE_ULONG_TYPEDEF
  72 #endif
  73
  74 #ifndef HAVE_U16_TYPEDEF
  75 #undef u16          /* maybe there is a macro with this name */
  76 #if SIZEOF_UNSIGNED_INT == 2
  77 typedef unsigned int   u16;
  78 #elif SIZEOF_UNSIGNED_SHORT == 2
  79 typedef unsigned short u16;
  80 #else
  81 #error no typedef for u16
  82 #endif
  83 #define HAVE_U16_TYPEDEF
  84 #endif
  85
  86 #ifndef HAVE_U32_TYPEDEF
  87 #undef u32          /* maybe there is a macro with this name */
  88 #if SIZEOF_UNSIGNED_INT == 4
  89 typedef unsigned int u32;
  90 #elif SIZEOF_UNSIGNED_LONG == 4
  91 typedef unsigned long u32;
  92 #else
  93 #error no typedef for u32
  94 #endif
  95 #define HAVE_U32_TYPEDEF
  96 #endif
  97
  98 /****************
  99  * Warning: Some systems segfault when this u64 typedef and
 100  * the dummy code in cipher/md.c is not available.  Examples are
 101  * Solaris and IRIX.
 102  */
 103 #ifndef HAVE_U64_TYPEDEF
 104 #undef u64          /* maybe there is a macro with this name */
 105 #if SIZEOF_UINT64_T == 8
 106 typedef uint64_t u64;
 107 #define U64_C(c) (UINT64_C(c))
 108 #define HAVE_U64_TYPEDEF
 109 #elif SIZEOF_UNSIGNED_INT == 8
 110 typedef unsigned int u64;
 111 #define U64_C(c) (c ## U)
 112 #define HAVE_U64_TYPEDEF
 113 #elif SIZEOF_UNSIGNED_LONG == 8
 114 typedef unsigned long u64;
 115 #define U64_C(c) (c ## UL)
 116 #define HAVE_U64_TYPEDEF
 117 #elif SIZEOF_UNSIGNED_LONG_LONG == 8
 118 typedef unsigned long long u64;
 119 #define U64_C(c) (c ## ULL)
 120 #define HAVE_U64_TYPEDEF
 121 #endif
 122 #endif
 123
 124 typedef union {
 125     int a;
 126     short b;
 127     char c[1];
 128     long d;
 129 #ifdef HAVE_U64_TYPEDEF
 130     u64 e;
 131 #endif
 132     float f;
 133     double g;
 134 } PROPERLY_ALIGNED_TYPE;
 135
 136 #endif /*G10_TYPES_H*/