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 3 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, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifndef G10_TYPES_H
  21 #define G10_TYPES_H
  22
  23 #ifdef HAVE_INTTYPES_H
  24 /* For uint64_t */
  25 #include <inttypes.h>
  26 #endif
  27
  28 /* The AC_CHECK_SIZEOF() in configure fails for some machines.
  29  * we provide some fallback values here */
  30 #if !SIZEOF_UNSIGNED_SHORT
  31 #undef SIZEOF_UNSIGNED_SHORT
  32 #define SIZEOF_UNSIGNED_SHORT 2
  33 #endif
  34 #if !SIZEOF_UNSIGNED_INT
  35 #undef SIZEOF_UNSIGNED_INT
  36 #define SIZEOF_UNSIGNED_INT 4
  37 #endif
  38 #if !SIZEOF_UNSIGNED_LONG
  39 #undef SIZEOF_UNSIGNED_LONG
  40 #define SIZEOF_UNSIGNED_LONG 4
  41 #endif
  42
  43
  44 #include <sys/types.h>
  45
  46
  47 #ifndef HAVE_BYTE_TYPEDEF
  48 #undef byte         /* maybe there is a macro with this name */
  49 #ifndef __riscos__
  50 typedef unsigned char byte;
  51 #else
  52 /* Norcroft treats char  = unsigned char  as legal assignment
  53                but char* = unsigned char* as illegal assignment
  54    and the same applies to the signed variants as well  */
  55 typedef char byte;
  56 #endif
  57 #define HAVE_BYTE_TYPEDEF
  58 #endif
  59
  60 #ifndef HAVE_USHORT_TYPEDEF
  61 #undef ushort     /* maybe there is a macro with this name */
  62 typedef unsigned short ushort;
  63 #define HAVE_USHORT_TYPEDEF
  64 #endif
  65
  66 #ifndef HAVE_ULONG_TYPEDEF
  67 #undef ulong        /* maybe there is a macro with this name */
  68 typedef unsigned long ulong;
  69 #define HAVE_ULONG_TYPEDEF
  70 #endif
  71
  72 #ifndef HAVE_U16_TYPEDEF
  73 #undef u16          /* maybe there is a macro with this name */
  74 #if SIZEOF_UNSIGNED_INT == 2
  75 typedef unsigned int   u16;
  76 #elif SIZEOF_UNSIGNED_SHORT == 2
  77 typedef unsigned short u16;
  78 #else
  79 #error no typedef for u16
  80 #endif
  81 #define HAVE_U16_TYPEDEF
  82 #endif
  83
  84 #ifndef HAVE_U32_TYPEDEF
  85 #undef u32          /* maybe there is a macro with this name */
  86 #if SIZEOF_UNSIGNED_INT == 4
  87 typedef unsigned int u32;
  88 #elif SIZEOF_UNSIGNED_LONG == 4
  89 typedef unsigned long u32;
  90 #else
  91 #error no typedef for u32
  92 #endif
  93 #define HAVE_U32_TYPEDEF
  94 #endif
  95
  96 /****************
  97  * Warning: Some systems segfault when this u64 typedef and
  98  * the dummy code in cipher/md.c is not available.  Examples are
  99  * Solaris and IRIX.
 100  */
 101 #ifndef HAVE_U64_TYPEDEF
 102 #undef u64          /* maybe there is a macro with this name */
 103 #if SIZEOF_UINT64_T == 8
 104 typedef uint64_t u64;
 105 #define U64_C(c) (UINT64_C(c))
 106 #define HAVE_U64_TYPEDEF
 107 #elif SIZEOF_UNSIGNED_INT == 8
 108 typedef unsigned int u64;
 109 #define U64_C(c) (c ## U)
 110 #define HAVE_U64_TYPEDEF
 111 #elif SIZEOF_UNSIGNED_LONG == 8
 112 typedef unsigned long u64;
 113 #define U64_C(c) (c ## UL)
 114 #define HAVE_U64_TYPEDEF
 115 #elif SIZEOF_UNSIGNED_LONG_LONG == 8
 116 typedef unsigned long long u64;
 117 #define U64_C(c) (c ## ULL)
 118 #define HAVE_U64_TYPEDEF
 119 #endif
 120 #endif
 121
 122 typedef union {
 123     int a;
 124     short b;
 125     char c[1];
 126     long d;
 127 #ifdef HAVE_U64_TYPEDEF
 128     u64 e;
 129 #endif
 130     float f;
 131     double g;
 132 } PROPERLY_ALIGNED_TYPE;
 133
 134 #endif /*G10_TYPES_H*/