compat/types.h

   1 /*
   2  * Copyright (C) 1996-2023 The Squid Software Foundation and contributors
   3  *
   4  * Squid software is distributed under GPLv2+ license and includes
   5  * contributions from numerous individuals and organizations.
   6  * Please see the COPYING and CONTRIBUTORS files for details.
   7  */
   8
   9 #ifndef SQUID_COMPAT_TYPES_H
  10 #define SQUID_COMPAT_TYPES_H
  11
  12 /*
  13  * Here are defined several known-width types, obtained via autoconf
  14  * from system locations or various attempts. This is just a convenience
  15  * header to include which takes care of proper preprocessor stuff
  16  *
  17  * This file is only intended to be included via compat/compat.h, do
  18  * not include directly.
  19  */
  20
  21 /* This should be in synch with what we have in acinclude.m4 */
  22 #if HAVE_SYS_TYPES_H
  23 #include <sys/types.h>
  24 #endif
  25 #if HAVE_LINUX_TYPES_H
  26 #include <linux/types.h>
  27 #endif
  28 #if HAVE_STDLIB_H
  29 #include <stdlib.h>
  30 #endif
  31 #if HAVE_STDDEF_H
  32 #include <stddef.h>
  33 #endif
  34 #if HAVE_INTTYPES_H
  35 #include <inttypes.h>
  36 #endif
  37 #if HAVE_SYS_BITYPES_H
  38 #include <sys/bitypes.h>
  39 #endif
  40 #if HAVE_SYS_SELECT_H
  41 #include <sys/select.h>
  42 #endif
  43 #if HAVE_NETINET_IN_SYSTM_H
  44 /* Several OS require types declared by in_systm.h without including it themselves. */
  45 #include <netinet/in_systm.h>
  46 #endif
  47
  48 /******************************************************/
  49 /* Typedefs for missing entries on a system           */
  50 /******************************************************/
  51
  52 /*
  53  * Ensure that standard type limits are defined for use
  54  */
  55 #if __cplusplus
  56 #include <cstdint>
  57 #elif HAVE_STDINT_H
  58 #include <stdint.h>
  59 #endif
  60
  61 /* explicit bit sizes */
  62 #if !defined(UINT32_MIN)
  63 #define UINT32_MIN    0x00000000L
  64 #endif
  65 #if !defined(UINT32_MAX)
  66 #define UINT32_MAX    0xFFFFFFFFL
  67 #endif
  68
  69 #if !defined(INT_MAX)
  70 #define INT_MAX    0x7FFFFFFFL // hack but a safe bet (32-bit signed integer)
  71 #endif
  72
  73 #if !defined(INT64_MIN)
  74 /* Native 64 bit system without strtoll() */
  75 #if defined(LONG_MIN) && (SIZEOF_LONG == 8)
  76 #define INT64_MIN    LONG_MIN
  77 #else
  78 /* 32 bit system */
  79 #define INT64_MIN    (-9223372036854775807LL-1LL)
  80 #endif
  81 #endif
  82
  83 #if !defined(INT64_MAX)
  84 /* Native 64 bit system without strtoll() */
  85 #if defined(LONG_MAX) && (SIZEOF_LONG == 8)
  86 #define INT64_MAX    LONG_MAX
  87 #else
  88 /* 32 bit system */
  89 #define INT64_MAX    9223372036854775807LL
  90 #endif
  91 #endif
  92
  93 /*
  94  * ISO C99 Standard printf() macros for 64 bit integers
  95  * On some 64 bit platform, HP Tru64 is one, for printf must be used
  96  * "%lx" instead of "%llx"
  97  */
  98 #ifndef PRId64
  99 #if _SQUID_WINDOWS_
 100 #define PRId64 "I64d"
 101 #elif SIZEOF_INT64_T > SIZEOF_LONG
 102 #define PRId64 "lld"
 103 #else
 104 #define PRId64 "ld"
 105 #endif
 106 #endif
 107
 108 #ifndef PRIu64
 109 #if _SQUID_WINDOWS_
 110 #define PRIu64 "I64u"
 111 #elif SIZEOF_INT64_T > SIZEOF_LONG
 112 #define PRIu64 "llu"
 113 #else
 114 #define PRIu64 "lu"
 115 #endif
 116 #endif
 117
 118 #ifndef PRIX64
 119 #if _SQUID_WINDOWS_
 120 #define PRIX64 "I64X"
 121 #elif SIZEOF_INT64_T > SIZEOF_LONG
 122 #define PRIX64 "llX"
 123 #else
 124 #define PRIX64 "lX"
 125 #endif
 126 #endif
 127
 128 #ifndef HAVE_MODE_T
 129 typedef unsigned short mode_t;
 130 #endif
 131
 132 #ifndef HAVE_FD_MASK
 133 typedef unsigned long fd_mask;
 134 #endif
 135
 136 #ifndef HAVE_SOCKLEN_T
 137 typedef int socklen_t;
 138 #endif
 139
 140 #ifndef HAVE_MTYP_T
 141 typedef long mtyp_t;
 142 #endif
 143
 144 #ifndef NULL
 145 #define NULL 0
 146 #endif
 147
 148 #endif /* SQUID_COMPAT_TYPES_H */
 149