446664c8d4
libpcap is BSD licensed, but Npcap has a non-free license (which does give Wireshark specific permission to redistribute it.) Due to the licensing requirements, third party packagers for Windows will either package a compiled version of libpcap that does not capture packets on Windows (vcpkg, Conan, MSYS2) or continue to package the last release of WinPcap (Fedora Linux MinGW.) On Windows, we compile using the headers from those packages, making sure not to link the non-functional DLLs, distribute Npcap separately as part of the installer, and load its wpcap.dll through run-time dynamic linking, checking for each needed function. Just add an internal copy of the latest release of the libpcap headers (1.10.5), and use it unconditionally when Windows cross-compiling or on MSYS2, or otherwise if libpcap headers aren't found. (On non Windows we will still require finding the library.) That's all we're actually doing on Windows and MSYS2 builds as it is; it also makes the Fedora MinGW builds use the latest API instead of using Npcap with the libpcap-1.0 / WinPcap 4.1.3 level API. Don't bother installing the libpcap or WinPcap packages from vcpkg, MSYS2, and Fedora MinGW, because we don't need them. Remove the advertising clause from the files with the original University of California, Berkeley clause, per https://ipira.berkeley.edu/sites/default/files/amendment_of_4-clause_bsd_software_license.pdf originally at ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change Other files (including pcap.h) have the provision but mentioning the Computer Systems Engineering Group at LBL; that might still apply (hopefully it does not.) If it *is* a problem, then it's always been a problem, because we've always distributed packages including these headers. Ping #20261
102 lines
3.7 KiB
C
102 lines
3.7 KiB
C
/*
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* Copyright (c) 2002 - 2005 NetGroup, Politecnico di Torino (Italy)
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* Copyright (c) 2005 - 2009 CACE Technologies, Inc. Davis (California)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Politecnico di Torino nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef pcap_pcap_inttypes_h
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#define pcap_pcap_inttypes_h
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/*
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* If we're compiling with Visual Studio, make sure the C99 integer
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* types are defined, by hook or by crook.
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*
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* XXX - verify that we have at least C99 support on UN*Xes?
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*
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* What about MinGW or various DOS toolchains? We're currently assuming
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* sufficient C99 support there.
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*/
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#if defined(_MSC_VER)
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/*
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* Compiler is MSVC.
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*/
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#if _MSC_VER >= 1800
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/*
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* VS 2013 or newer; we have <inttypes.h>.
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*/
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#include <inttypes.h>
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#else
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/*
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* Earlier VS; we have to define this stuff ourselves.
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* We don't support building libpcap with earlier versions of VS,
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* but SDKs for Npcap have to support building applications using
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* earlier versions of VS, so we work around this by defining
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* those types ourselves, as some files use them.
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*/
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typedef unsigned char uint8_t;
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typedef signed char int8_t;
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typedef unsigned short uint16_t;
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typedef signed short int16_t;
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typedef unsigned int uint32_t;
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typedef signed int int32_t;
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#ifdef _MSC_EXTENSIONS
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typedef unsigned _int64 uint64_t;
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typedef _int64 int64_t;
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#else /* _MSC_EXTENSIONS */
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typedef unsigned long long uint64_t;
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typedef long long int64_t;
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#endif
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#endif
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#else /* defined(_MSC_VER) */
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/*
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* Not Visual Studio.
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* Include <inttypes.h> to get the integer types and PRI[doux]64 values
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* defined.
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*
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* If the compiler is MinGW, we assume we have <inttypes.h> - and
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* support for %zu in the formatted printing functions.
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*
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* If the target is UN*X, we assume we have a C99-or-later development
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* environment, and thus have <inttypes.h> - and support for %zu in
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* the formatted printing functions.
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*
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* If the target is MS-DOS, we assume we have <inttypes.h> - and support
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* for %zu in the formatted printing functions.
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*
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* I.e., assume we have <inttypes.h> and that it suffices.
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*/
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/*
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* XXX - somehow make sure we have enough C99 support with other
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* compilers and support libraries?
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*/
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#include <inttypes.h>
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#endif /* defined(_MSC_VER) */
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#endif /* pcap/pcap-inttypes.h */
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