The Tcpdump Group git mirrors - libpcap/blob - pcap/pcap-inttypes.h

   1 /*
   2  * Copyright (c) 2002 - 2005 NetGroup, Politecnico di Torino (Italy)
   3  * Copyright (c) 2005 - 2009 CACE Technologies, Inc. Davis (California)
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  * notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  * notice, this list of conditions and the following disclaimer in the
  14  * documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the Politecnico di Torino nor the names of its
  16  * contributors may be used to endorse or promote products derived from
  17  * this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31 #ifndef pcap_pcap_inttypes_h
  32 #define pcap_pcap_inttypes_h
  33
  34 /*
  35  * If we're compiling with Visual Studio, make sure the C99 integer
  36  * types are defined, by hook or by crook.
  37  *
  38  * XXX - verify that we have at least C99 support on UN*Xes?
  39  *
  40  * What about MinGW?  We're currently assuming
  41  * sufficient C99 support there.
  42  */
  43 #if defined(_MSC_VER)
  44   /*
  45    * Compiler is MSVC.
  46    */
  47   #if _MSC_VER >= 1800
  48     /*
  49      * VS 2013 or newer; we have <inttypes.h>.
  50      */
  51     #include <inttypes.h>
  52   #else
  53     /*
  54      * Earlier VS; we have to define this stuff ourselves.
  55      * We don't support building libpcap with earlier versions of VS,
  56      * but SDKs for Npcap have to support building applications using
  57      * earlier versions of VS, so we work around this by defining
  58      * those types ourselves, as some files use them.
  59      */
  60     typedef unsigned char uint8_t;
  61     typedef signed char int8_t;
  62     typedef unsigned short uint16_t;
  63     typedef signed short int16_t;
  64     typedef unsigned int uint32_t;
  65     typedef signed int int32_t;
  66     #ifdef _MSC_EXTENSIONS
  67       typedef unsigned _int64 uint64_t;
  68       typedef _int64 int64_t;
  69     #else /* _MSC_EXTENSIONS */
  70       typedef unsigned long long uint64_t;
  71       typedef long long int64_t;
  72     #endif
  73   #endif
  74 #else /* defined(_MSC_VER) */
  75   /*
  76    * Not Visual Studio.
  77    * Include <inttypes.h> to get the integer types and PRI[doux]64 values
  78    * defined.
  79    *
  80    * If the compiler is MinGW, we assume we have <inttypes.h> - and
  81    * support for %zu in the formatted printing functions.
  82    *
  83    * If the target is UN*X, we assume we have a C99-or-later development
  84    * environment, and thus have <inttypes.h> - and support for %zu in
  85    * the formatted printing functions.
  86    *
  87    * I.e., assume we have <inttypes.h> and that it suffices.
  88    */
  89
  90   /*
  91    * XXX - somehow make sure we have enough C99 support with other
  92    * compilers and support libraries?
  93    */
  94
  95   #include <inttypes.h>
  96 #endif /* defined(_MSC_VER) */
  97
  98 #endif /* pcap/pcap-inttypes.h */