Adding upstream version 4.99.4.upstream/4.99.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1371 insertions, 0 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..9495b5d
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,1371 @@
+if(WIN32)
+    #
+    # We need 3.12 or later, so that we can set policy CMP0074; see
+    # below.
+    cmake_minimum_required(VERSION 3.12)
+else(WIN32)
+    #
+    # For now, require only 2.8.6, just in case somebody is
+    # configuring with CMake on a "long-term support" version
+    # of some OS and that version supplies an older version of
+    # CMake.
+    #
+    # If this is ever updated to CMake 3.1 or later, remove the
+    # stuff in cmake/Modules/FindPCAP.cmake that appends subdirectories
+    # of directories from CMAKE_PREFIX_PATH to the PKG_CONFIG_PATH
+    # environment variable when running pkg-config, to make sure
+    # it finds any .pc file from there.
+    #
+    cmake_minimum_required(VERSION 2.8.12)
+endif(WIN32)
+
+#
+# We want find_path() and find_library() to honor {packagename}_ROOT,
+# as that appears to be the standard way to say "hey, look here for
+# this package" from the command line.
+#
+if(POLICY CMP0074)
+    cmake_policy(SET CMP0074 NEW)
+endif()
+
+#
+# OK, this is a pain.
+#
+# When building on NetBSD, with a libpcap installed from pkgsrc,
+# a -Wl,-rpath,/usr/pkg/lib option is added to the options when
+# linking tcpdump.  This puts /usr/pkg/lib into the run-time path.
+#
+# However, by default, CMake adds a rule to the install CMake script
+# a CMake command (using an undocumented subcommand of file()) that
+# strips /usr/pkg/lib *out* of the run-time path; the message in the
+# output for the "install" target is
+#
+#    -- Set runtime path of "{target-directory}/tcpdump" to ""
+#
+# I am not certain what the rationale is for doing this, but a
+# *consequence* of this is that, when you run the installed tcpdump,
+# it fails to find libpcap.so:
+#
+#    $ {target-directory}/tcpdump -h
+#    {target-directory}/tcpdump: Shared object "libpcap.so.0" not found
+#
+# It also appears to be the case that, on Ubuntu 22.04, FreeBSD 12,
+# DragonFly BSD 5.8, OpenBSD 6.6, and Solaris 11.4,
+#
+# On Ubuntu and Solaris, even if you have a libpcap in /usr/local, you
+# have to provide not only -I/usr/local/include and -L/usr/local/lib,
+# you also must provide -Wl,-rpath,/usr/local/lib in order to have
+# the run-time linker look in /usr/local/lib for libpcap.  If it's not
+# specified, then, if the shared library major version number of the
+# libpcap in /usr/lib is the same as the shared major version number
+# of the libpcap in /usr/local/lib, the run-time linker will find the
+# libpcap in /usr/lib; if the versions are different, the run-time
+# linker will fail to find the libpcap in /usr/lib, so the program will
+# fail to run.
+#
+# We suppress this by setting CMAKE_INSTALL_RPATH_USE_LINK_PATH to TRUE;
+# as the documentation for that variable says:
+#
+#    Add paths to linker search and installed rpath.
+#
+#    CMAKE_INSTALL_RPATH_USE_LINK_PATH is a boolean that if set to True
+#    will append to the runtime search path (rpath) of installed
+#    binaries any directories outside the project that are in the linker
+#    search path or contain linked library files. The directories are
+#    appended after the value of the INSTALL_RPATH target property.
+#
+# If, for whatever reason, directories in which we search for external
+# libraries, other than the standard system library directories, are
+# added to the executable's rpath in the build process, we most
+# defintely want them in the installed image's rpath if they are
+# necessary in order to find the libraries at run time.
+#
+set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
+
+set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/Modules)
+
+#
+# OK, this is a royal pain.
+#
+# CMake will try to determine the sizes of some data types, including
+# void *, early in the process of configuration; apparently, it's done
+# as part of processing the project() command.
+#
+# At least as of CMake 2.8.6, it does so by checking the size of
+# "void *" in C, setting CMAKE_C_SIZEOF_DATA_PTR based on that,
+# setting CMAKE_SIZEOF_VOID_P to that, and then checking the size
+# of "void *" in C++, setting CMAKE_CXX_SIZEOF_DATA_PTR based on
+# that, and then setting CMAKE_SIZEOF_VOID_P to *that*.
+#
+# The compile tests include whatever C flags may have been provided
+# to CMake in the CFLAGS and CXXFLAGS environment variables.
+#
+# If you set an architecture flag such as -m32 or -m64 in CFLAGS
+# but *not* in CXXFLAGS, the size for C++ will win, and hilarity
+# will ensue.
+#
+# Or if, at least on Solaris, you have a newer version of GCC
+# installed, but *not* a newer version of G++, and you have Oracle
+# Studio installed, it will find GCC, which will default to building
+# 64-bit, and Oracle Studio's C++ compiler, which will default to
+# building 32-bit, the size for C++ will win, and, again, hilarity
+# will ensue.
+#
+# So we *explicitly* state that only C is used; there is currently no
+# C++ code in tcpdump.
+#
+project(tcpdump C)
+
+#
+# For checking if a compiler flag works and adding it if it does.
+#
+include(CheckCCompilerFlag)
+macro(check_and_add_compiler_option _option)
+    message(STATUS "Checking C compiler flag ${_option}")
+    string(REPLACE "=" "-" _temp_option_variable ${_option})
+    string(REGEX REPLACE "^-" "" _option_variable ${_temp_option_variable})
+    check_c_compiler_flag("${_option}" ${_option_variable})
+    if(${${_option_variable}})
+        set(C_ADDITIONAL_FLAGS "${C_ADDITIONAL_FLAGS} ${_option}")
+    endif()
+endmacro()
+
+#
+# If we're building with Visual Studio, we require Visual Studio 2015,
+# in order to get sufficient C99 compatibility.  Check for that.
+#
+# If not, try the appropriate flag for the compiler to enable C99
+# features.
+#
+set(C_ADDITIONAL_FLAGS "")
+if(MSVC)
+    if(MSVC_VERSION LESS 1900)
+        message(FATAL_ERROR "Visual Studio 2015 or later is required")
+    endif()
+
+    #
+    # Treat source files as being in UTF-8 with MSVC if it's not using
+    # the Clang front end.
+    # We assume that UTF-8 source is OK with other compilers and with
+    # MSVC if it's using the Clang front end.
+    #
+    if(NOT ${CMAKE_C_COMPILER} MATCHES "clang*")
+        set(C_ADDITIONAL_FLAGS "${C_ADDITIONAL_FLAGS} /utf-8")
+    endif(NOT ${CMAKE_C_COMPILER} MATCHES "clang*")
+else(MSVC)
+    #
+    # Try to enable as many C99 features as we can.
+    # At minimum, we want C++/C99-style // comments.
+    #
+    # Newer versions of compilers might default to supporting C99, but
+    # older versions may require a special flag.
+    #
+    # Prior to CMake 3.1, setting CMAKE_C_STANDARD will not have any effect,
+    # so, unless and until we require CMake 3.1 or later, we have to do it
+    # ourselves on pre-3.1 CMake, so we just do it ourselves on all versions
+    # of CMake.
+    #
+    # Note: with CMake 3.1 through 3.5, the only compilers for which CMake
+    # handles CMAKE_C_STANDARD are GCC and Clang.  3.6 adds support only
+    # for Intel C; 3.9 adds support for PGI C, Sun C, and IBM XL C, and
+    # 3.10 adds support for Cray C and IAR C, but no version of CMake has
+    # support for HP C.  Therefore, even if we use CMAKE_C_STANDARD with
+    # compilers for which CMake supports it, we may still have to do it
+    # ourselves on other compilers.
+    #
+    # See the CMake documentation for the CMAKE_<LANG>_COMPILER_ID variables
+    # for a list of compiler IDs.
+    #
+    # XXX - this just tests whether the option works and adds it if it does.
+    # We don't test whether it's necessary in order to get the C99 features
+    # that we use; if we ever have a user who tries to compile with a compiler
+    # that can't be made to support those features, we can add a test to make
+    # sure we actually *have* C99 support.
+    #
+    if(CMAKE_C_COMPILER_ID MATCHES "GNU" OR
+       CMAKE_C_COMPILER_ID MATCHES "Clang")
+        check_and_add_compiler_option("-std=gnu99")
+    elseif(CMAKE_C_COMPILER_ID MATCHES "XL")
+        #
+        # We want support for extensions picked up for GNU C compatibility,
+        # so we use -qlanglvl=extc99.
+        #
+        check_and_add_compiler_option("-qlanglvl=extc99")
+    elseif(CMAKE_C_COMPILER_ID MATCHES "HP")
+        check_and_add_compiler_option("-AC99")
+    elseif(CMAKE_C_COMPILER_ID MATCHES "Sun")
+        check_and_add_compiler_option("-xc99")
+    elseif(CMAKE_C_COMPILER_ID MATCHES "Intel")
+        check_and_add_compiler_option("-c99")
+    endif()
+endif(MSVC)
+
+set(LIBRARY_NAME netdissect)
+
+###################################################################
+#   Parameters
+###################################################################
+
+option(WITH_SMI "Build with libsmi, if available" ON)
+option(WITH_CRYPTO "Build with OpenSSL/libressl libcrypto, if available" ON)
+option(WITH_CAPSICUM "Build with Capsicum security functions, if available" ON)
+option(WITH_CAP_NG "Use libcap-ng, if available" ON)
+option(ENABLE_SMB "Build with the SMB dissector" OFF)
+
+#
+# String parameters.  Neither of them are set, initially; only if the
+# user explicitly configures them are they set.
+#
+# WITH_CHROOT is STRING, not PATH, as the directory need not exist
+# when CMake is run.
+#
+set(WITH_CHROOT CACHE STRING
+    "Directory to which to chroot when dropping privileges")
+set(WITH_USER CACHE STRING
+    "User to whom to set the UID when dropping privileges")
+
+#
+# By default, build universal with the appropriate set of architectures
+# for the OS on which we're doing the build.
+#
+if(APPLE AND "${CMAKE_OSX_ARCHITECTURES}" STREQUAL "")
+    #
+    # Get the major version of Darwin.
+    #
+    string(REGEX MATCH "^([0-9]+)" SYSTEM_VERSION_MAJOR "${CMAKE_SYSTEM_VERSION}")
+
+    if(SYSTEM_VERSION_MAJOR EQUAL 9)
+        #
+        # Leopard.  Build for x86 and 32-bit PowerPC, with
+        # x86 first.  (That's what Apple does.)
+        #
+        set(CMAKE_OSX_ARCHITECTURES "i386;ppc")
+    elseif(SYSTEM_VERSION_MAJOR EQUAL 10)
+        #
+        # Snow Leopard.  Build for x86-64 and x86, with
+        # x86-64 first.  (That's what Apple does.)
+        #
+        set(CMAKE_OSX_ARCHITECTURES "x86_64;i386")
+    endif()
+endif()
+
+###################################################################
+#   Versioning
+###################################################################
+
+# Get, parse, format and set tcpdump's version string from
+# [tcpdump_root]/VERSION for later use.
+
+# Get MAJOR, MINOR, PATCH & SUFFIX
+file(STRINGS ${tcpdump_SOURCE_DIR}/VERSION
+    PACKAGE_VERSION
+    LIMIT_COUNT 1 # Read only the first line
+)
+
+######################################
+# Project settings
+######################################
+
+add_definitions(-DHAVE_CONFIG_H)
+
+include_directories(
+    ${CMAKE_CURRENT_BINARY_DIR}
+    ${tcpdump_SOURCE_DIR}
+)
+
+if(MSVC)
+    add_definitions(-D__STDC__)
+    add_definitions(-D_CRT_SECURE_NO_WARNINGS)
+endif(MSVC)
+
+if(MSVC)
+    if (USE_STATIC_RT)
+        MESSAGE(STATUS "Use STATIC runtime")
+        set(NAME_RT MT)
+        set (CMAKE_CXX_FLAGS_MINSIZEREL     "${CMAKE_CXX_FLAGS_MINSIZEREL} /MT")
+        set (CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} /MT")
+        set (CMAKE_CXX_FLAGS_RELEASE        "${CMAKE_CXX_FLAGS_RELEASE} /MT")
+        set (CMAKE_CXX_FLAGS_DEBUG          "${CMAKE_CXX_FLAGS_DEBUG} /MTd")
+
+        set (CMAKE_C_FLAGS_MINSIZEREL       "${CMAKE_C_FLAGS_MINSIZEREL} /MT")
+        set (CMAKE_C_FLAGS_RELWITHDEBINFO   "${CMAKE_C_FLAGS_RELWITHDEBINFO} /MT")
+        set (CMAKE_C_FLAGS_RELEASE          "${CMAKE_C_FLAGS_RELEASE} /MT")
+        set (CMAKE_C_FLAGS_DEBUG            "${CMAKE_C_FLAGS_DEBUG} /MTd")
+    else (USE_STATIC_RT)
+        MESSAGE(STATUS "Use DYNAMIC runtime")
+        set(NAME_RT MD)
+        set (CMAKE_CXX_FLAGS_MINSIZEREL     "${CMAKE_CXX_FLAGS_MINSIZEREL} /MD")
+        set (CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} /MD")
+        set (CMAKE_CXX_FLAGS_RELEASE        "${CMAKE_CXX_FLAGS_RELEASE} /MD")
+        set (CMAKE_CXX_FLAGS_DEBUG          "${CMAKE_CXX_FLAGS_DEBUG} /MDd")
+
+        set (CMAKE_C_FLAGS_MINSIZEREL       "${CMAKE_C_FLAGS_MINSIZEREL} /MD")
+        set (CMAKE_C_FLAGS_RELWITHDEBINFO   "${CMAKE_C_FLAGS_RELWITHDEBINFO} /MD")
+        set (CMAKE_C_FLAGS_RELEASE          "${CMAKE_C_FLAGS_RELEASE} /MD")
+        set (CMAKE_C_FLAGS_DEBUG            "${CMAKE_C_FLAGS_DEBUG} /MDd")
+   endif (USE_STATIC_RT)
+endif(MSVC)
+
+###################################################################
+#   Detect available platform features
+###################################################################
+
+include(CMakePushCheckState)
+include(CheckIncludeFile)
+include(CheckIncludeFiles)
+include(CheckFunctionExists)
+include(CheckLibraryExists)
+include(CheckSymbolExists)
+include(CheckStructHasMember)
+include(CheckVariableExists)
+include(CheckTypeSize)
+
+#
+# Header files.
+#
+check_include_file(fcntl.h HAVE_FCNTL_H)
+check_include_file(rpc/rpc.h HAVE_RPC_RPC_H)
+check_include_file(net/if.h HAVE_NET_IF_H)
+if(HAVE_RPC_RPC_H)
+    check_include_files("rpc/rpc.h;rpc/rpcent.h" HAVE_RPC_RPCENT_H)
+endif(HAVE_RPC_RPC_H)
+
+#
+# Functions.
+#
+check_function_exists(strlcat HAVE_STRLCAT)
+check_function_exists(strlcpy HAVE_STRLCPY)
+check_function_exists(strdup HAVE_STRDUP)
+check_function_exists(strsep HAVE_STRSEP)
+
+#
+# Find library needed for gethostbyaddr.
+# NOTE: if you hand check_library_exists as its last argument a variable
+# that's been set, it skips the test, so we need different variables.
+#
+set(TCPDUMP_LINK_LIBRARIES "")
+if(WIN32)
+    #
+    # We need winsock2.h and ws2tcpip.h.
+    #
+    cmake_push_check_state()
+    set(CMAKE_REQUIRED_LIBRARIES ws2_32)
+    check_symbol_exists(gethostbyaddr "winsock2.h;ws2tcpip.h" LIBWS2_32_HAS_GETHOSTBYADDR)
+    cmake_pop_check_state()
+    if(LIBWS2_32_HAS_GETHOSTBYADDR)
+        set(TCPDUMP_LINK_LIBRARIES ws2_32 ${TCPDUMP_LINK_LIBRARIES})
+    else(LIBWS2_32_HAS_GETHOSTBYADDR)
+        message(FATAL_ERROR "gethostbyaddr is required, but wasn't found")
+    endif(LIBWS2_32_HAS_GETHOSTBYADDR)
+else(WIN32)
+    check_function_exists(gethostbyaddr STDLIBS_HAVE_GETHOSTBYADDR)
+    if(NOT STDLIBS_HAVE_GETHOSTBYADDR)
+        check_library_exists(socket gethostbyaddr "" LIBSOCKET_HAS_GETHOSTBYADDR)
+        if(LIBSOCKET_HAS_GETHOSTBYADDR)
+            set(TCPDUMP_LINK_LIBRARIES ${TCPDUMP_LINK_LIBRARIES} socket)
+        else(LIBSOCKET_HAS_GETHOSTBYADDR)
+            check_library_exists(nsl gethostbyaddr "" LIBNSL_HAS_GETHOSTBYADDR)
+            if(LIBNSL_HAS_GETHOSTBYADDR)
+                set(TCPDUMP_LINK_LIBRARIES ${TCPDUMP_LINK_LIBRARIES} nsl)
+            else(LIBNSL_HAS_GETHOSTBYADDR)
+                message(FATAL_ERROR "gethostbyaddr is required, but wasn't found")
+            endif(LIBNSL_HAS_GETHOSTBYADDR)
+        endif(LIBSOCKET_HAS_GETHOSTBYADDR)
+    endif(NOT STDLIBS_HAVE_GETHOSTBYADDR)
+endif(WIN32)
+
+#
+# This may require additional libraries.
+#
+cmake_push_check_state()
+set(CMAKE_REQUIRED_LIBRARIES ${TCPDUMP_LINK_LIBRARIES})
+check_function_exists(getservent STDLIBS_HAVE_GETSERVENT)
+if(STDLIBS_HAVE_GETSERVENT)
+    set(HAVE_GETSERVENT TRUE)
+else(STDLIBS_HAVE_GETSERVENT)
+    #
+    # Some platforms may need -lsocket for getservent.
+    #
+    set(CMAKE_REQUIRED_LIBRARIES socket ${TCPDUMP_LINK_LIBRARIES})
+    check_function_exists(getservent LIBSOCKET_HAS_GETSERVENT)
+    if(LIBSOCKET_HAS_GETSERVENT)
+        set(HAVE_GETSERVENT TRUE)
+        set(TCPDUMP_LINK_LIBRARIES socket ${TCPDUMP_LINK_LIBRARIES})
+    endif(LIBSOCKET_HAS_GETSERVENT)
+endif(STDLIBS_HAVE_GETSERVENT)
+cmake_pop_check_state()
+
+#
+# Make sure we have vsnprintf() and snprintf(); we require them.
+# We use check_symbol_exists(), as they aren't necessarily external
+# functions - in Visual Studio, for example, they're inline functions
+# calling a common external function.
+#
+check_symbol_exists(vsnprintf "stdio.h" HAVE_VSNPRINTF)
+if(NOT HAVE_VSNPRINTF)
+    message(FATAL_ERROR "vsnprintf() is required but wasn't found")
+endif(NOT HAVE_VSNPRINTF)
+check_symbol_exists(snprintf "stdio.h" HAVE_SNPRINTF)
+if(NOT HAVE_SNPRINTF)
+    message(FATAL_ERROR "snprintf() is required but wasn't found")
+endif()
+
+check_function_exists(getopt_long HAVE_GETOPT_LONG)
+check_function_exists(setlinebuf HAVE_SETLINEBUF)
+#
+# For Windows,  don't need to waste time checking for fork() or vfork().
+#
+if(NOT WIN32)
+    check_function_exists(fork HAVE_FORK)
+    check_function_exists(vfork HAVE_VFORK)
+endif(NOT WIN32)
+
+#
+# Some platforms may need -lnsl for getrpcbynumber.
+#
+cmake_push_check_state()
+set(CMAKE_REQUIRED_LIBRARIES ${TCPDUMP_LINK_LIBRARIES})
+check_function_exists(getrpcbynumber STDLIBS_HAVE_GETRPCBYNUMBER)
+if(STDLIBS_HAVE_GETRPCBYNUMBER)
+    set(HAVE_GETRPCBYNUMBER TRUE)
+else(STDLIBS_HAVE_GETRPCBYNUMBER)
+    set(CMAKE_REQUIRED_LIBRARIES ${TCPDUMP_LINK_LIBRARIES} nsl)
+    check_function_exists(getrpcbynumber LIBNSL_HAS_GETRPCBYNUMBER)
+    if(LIBNSL_HAS_GETRPCBYNUMBER)
+        set(HAVE_GETRPCBYNUMBER TRUE)
+        set(TCPDUMP_LINK_LIBRARIES ${TCPDUMP_LINK_LIBRARIES} nsl)
+    endif(LIBNSL_HAS_GETRPCBYNUMBER)
+endif(STDLIBS_HAVE_GETRPCBYNUMBER)
+cmake_pop_check_state()
+
+#
+# This requires the libraries we require, as ether_ntohost might be
+# in one of those libraries.  That means we have to do this after
+# we check for those libraries.
+#
+# You are in a twisty little maze of UN*Xes, all different.
+# Some might not have ether_ntohost().
+# Some might have it and declare it in <net/ethernet.h>.
+# Some might have it and declare it in <netinet/ether.h>
+# Some might have it and declare it in <sys/ethernet.h>.
+# Some might have it and declare it in <arpa/inet.h>.
+# Some might have it and declare it in <netinet/if_ether.h>.
+# Some might have it and not declare it in any header file.
+#
+# Before you is a C compiler.
+#
+cmake_push_check_state()
+set(CMAKE_REQUIRED_LIBRARIES ${TCPDUMP_LINK_LIBRARIES})
+check_function_exists(ether_ntohost HAVE_ETHER_NTOHOST)
+if(HAVE_ETHER_NTOHOST)
+    #
+    # OK, we have ether_ntohost().  We don't check whether it's buggy,
+    # as we assume any system that has CMake is likely to be new enough
+    # that, if it has ether_ntohost(), whatever bug is checked for in
+    # autotools is fixed; we just decide to use it.
+    #
+    set(USE_ETHER_NTOHOST TRUE)
+
+    #
+    # Is it declared in <net/ethernet.h>?
+    #
+    # This test fails if we don't have <net/ethernet.h> or if we do
+    # but it doesn't declare ether_ntohost().
+    #
+    check_symbol_exists(ether_ntohost net/ethernet.h NET_ETHERNET_H_DECLARES_ETHER_NTOHOST)
+    if(NET_ETHERNET_H_DECLARES_ETHER_NTOHOST)
+        #
+        # Yes - we have it declared.
+        #
+        set(HAVE_DECL_ETHER_NTOHOST TRUE)
+    endif()
+    #
+    # Did that succeed?
+    #
+    if(NOT HAVE_DECL_ETHER_NTOHOST)
+        #
+        # No - how about <netinet/ether.h>, as on Linux?
+        #
+        # This test fails if we don't have <netinet/ether.h>
+        # or if we do but it doesn't declare ether_ntohost().
+        #
+        check_symbol_exists(ether_ntohost netinet/ether.h NETINET_ETHER_H_DECLARES_ETHER_NTOHOST)
+        if(NETINET_ETHER_H_DECLARES_ETHER_NTOHOST)
+            #
+            # Yes - we have it declared.
+            #
+            set(HAVE_DECL_ETHER_NTOHOST TRUE)
+        endif()
+    endif()
+    #
+    # Did that succeed?
+    #
+    if(NOT HAVE_DECL_ETHER_NTOHOST)
+        #
+        # No - how about <sys/ethernet.h>, as on Solaris 10 and later?
+        #
+        # This test fails if we don't have <sys/ethernet.h>
+        # or if we do but it doesn't declare ether_ntohost().
+        #
+        check_symbol_exists(ether_ntohost sys/ethernet.h SYS_ETHERNET_H_DECLARES_ETHER_NTOHOST)
+        if(SYS_ETHERNET_H_DECLARES_ETHER_NTOHOST)
+            #
+            # Yes - we have it declared.
+            #
+            set(HAVE_DECL_ETHER_NTOHOST TRUE)
+        endif()
+    endif()
+    #
+    # Did that succeed?
+    #
+    if(NOT HAVE_DECL_ETHER_NTOHOST)
+        #
+        # No, how about <arpa/inet.h>, as on AIX?
+        #
+        # This test fails if we don't have <arpa/inet.h>
+        # or if we do but it doesn't declare ether_ntohost().
+        #
+        check_symbol_exists(ether_ntohost arpa/inet.h ARPA_INET_H_DECLARES_ETHER_NTOHOST)
+        if(ARPA_INET_H_DECLARES_ETHER_NTOHOST)
+            #
+            # Yes - we have it declared.
+            #
+            set(HAVE_DECL_ETHER_NTOHOST TRUE)
+        endif()
+    endif()
+    #
+    # Did that succeed?
+    #
+    if(NOT HAVE_DECL_ETHER_NTOHOST)
+        #
+        # No, how about <netinet/if_ether.h>?
+        # On some platforms, it requires <net/if.h> and
+        # <netinet/in.h>, and we always include it with
+        # both of them, so test it with both of them.
+        #
+        # This test fails if we don't have <netinet/if_ether.h>
+        # and the headers we include before it, or if we do but
+        # <netinet/if_ether.h> doesn't declare ether_ntohost().
+        #
+        check_symbol_exists(ether_ntohost "sys/types.h;sys/socket.h;net/if.h;netinet/in.h;netinet/if_ether.h" NETINET_IF_ETHER_H_DECLARES_ETHER_NTOHOST)
+        if(NETINET_IF_ETHER_H_DECLARES_ETHER_NTOHOST)
+            #
+            # Yes - we have it declared.
+            #
+            set(HAVE_DECL_ETHER_NTOHOST TRUE)
+        endif()
+    endif()
+    #
+    # After all that, is ether_ntohost() declared?
+    #
+    if(NOT HAVE_DECL_ETHER_NTOHOST)
+        #
+        # No, we'll have to declare it ourselves.
+        # Do we have "struct ether_addr" if we include<netinet/if_ether.h>?
+        #
+        check_struct_has_member("struct ether_addr" octet "sys/types.h;sys/socket.h;net/if.h;netinet/in.h;netinet/if_ether.h" HAVE_STRUCT_ETHER_ADDR)
+    endif()
+endif()
+cmake_pop_check_state()
+
+#
+# Data types.
+#
+# XXX - there's no check_struct() macro that's like check_struct_has_member()
+# except that it only checks for the existence of the structure type,
+# so we use check_struct_has_member() and look for ss_family.
+#
+
+#
+# Check for IPv6 support.
+# We just check for AF_INET6 and struct in6_addr.
+#
+cmake_push_check_state()
+if(WIN32)
+    set(CMAKE_EXTRA_INCLUDE_FILES sys/types.h ws2tcpip.h)
+    check_symbol_exists(AF_INET6 "sys/types.h;ws2tcpip.h" HAVE_AF_INET6)
+else(WIN32)
+    set(CMAKE_EXTRA_INCLUDE_FILES sys/types.h sys/socket.h netinet/in.h)
+    check_symbol_exists(AF_INET6 "sys/types.h;sys/socket.h;netinet/in.h" HAVE_AF_INET6)
+endif(WIN32)
+check_type_size("struct in6_addr" HAVE_STRUCT_IN6_ADDR)
+cmake_pop_check_state()
+if(HAVE_AF_INET6 AND HAVE_STRUCT_IN6_ADDR)
+    set(HAVE_OS_IPV6_SUPPORT TRUE)
+endif(HAVE_AF_INET6 AND HAVE_STRUCT_IN6_ADDR)
+
+######################################
+# External dependencies
+######################################
+
+#
+# libpcap/WinPcap/Npcap.
+# First, find it.
+#
+find_package(PCAP REQUIRED)
+include_directories(${PCAP_INCLUDE_DIRS})
+
+cmake_push_check_state()
+
+#
+# Now check headers.
+#
+set(CMAKE_REQUIRED_INCLUDES ${PCAP_INCLUDE_DIRS})
+
+#
+# Check whether we have pcap/pcap-inttypes.h.
+# If we do, we use that to get the C99 types defined.
+#
+check_include_file(pcap/pcap-inttypes.h HAVE_PCAP_PCAP_INTTYPES_H)
+
+#
+# Check for various functions in libpcap/WinPcap/Npcap.
+#
+cmake_push_check_state()
+set(CMAKE_REQUIRED_LIBRARIES ${PCAP_LIBRARIES})
+
+#
+# Check for "pcap_list_datalinks()" and use a substitute version if
+# it's not present.  If it is present, check for "pcap_free_datalinks()";
+# if it's not present, we don't replace it for now.  (We could do so
+# on UN*X, but not on Windows, where hilarity ensues if a program
+# built with one version of the MSVC support library tries to free
+# something allocated by a library built with another version of
+# the MSVC support library.)
+#
+check_function_exists(pcap_list_datalinks HAVE_PCAP_LIST_DATALINKS)
+if(HAVE_PCAP_LIST_DATALINKS)
+    check_function_exists(pcap_free_datalinks HAVE_PCAP_FREE_DATALINKS)
+endif(HAVE_PCAP_LIST_DATALINKS)
+
+#
+# Check for "pcap_datalink_name_to_val()", and use a substitute
+# version if it's not present.  If it is present, check for
+# "pcap_datalink_val_to_description()", and if we don't have it,
+# use a substitute version.
+#
+check_function_exists(pcap_datalink_name_to_val HAVE_PCAP_DATALINK_NAME_TO_VAL)
+if(HAVE_PCAP_DATALINK_NAME_TO_VAL)
+    check_function_exists(pcap_datalink_val_to_description HAVE_PCAP_DATALINK_VAL_TO_DESCRIPTION)
+endif(HAVE_PCAP_DATALINK_NAME_TO_VAL)
+
+#
+# Check for "pcap_set_datalink()"; you can't substitute for it if
+# it's absent (it has hooks into libpcap), so just define the
+# HAVE_ value if it's there.
+#
+check_function_exists(pcap_set_datalink HAVE_PCAP_SET_DATALINK)
+
+#
+# Check for "pcap_breakloop()"; you can't substitute for it if
+# it's absent (it has hooks into the live capture routines),
+# so just define the HAVE_ value if it's there.
+#
+check_function_exists(pcap_breakloop HAVE_PCAP_BREAKLOOP)
+
+#
+# Check for "pcap_dump_ftell()"; we use a substitute version
+# if it's not present.
+#
+check_function_exists(pcap_dump_ftell HAVE_PCAP_DUMP_FTELL)
+
+#
+# Do we have the new open API?  Check for pcap_create() and for
+# pcap_statustostr(), and assume that, if we have both of them,
+# we also have pcap_activate() and the other new routines
+# introduced in libpcap 1.0.0.  (We check for pcap_statustostr()
+# as well, because WinPcap 4.1.3 screwed up and exported pcap_create()
+# but not other routines such as pcap_statustostr(), even though it
+# defined them and even though you really want pcap_statustostr() to
+# get strings corresponding to some of the status returns from the
+# new routines.)
+#
+check_function_exists(pcap_statustostr HAVE_PCAP_STATUSTOSTR)
+#
+# If we don't have pcap_statustostr(), don't check for pcap_create(),
+# so we pretend we don't have it.
+#
+if(HAVE_PCAP_STATUSTOSTR)
+    check_function_exists(pcap_create HAVE_PCAP_CREATE)
+endif(HAVE_PCAP_STATUSTOSTR)
+if(HAVE_PCAP_CREATE)
+    #
+    # OK, do we have pcap_set_tstamp_type?  If so, assume we have
+    # pcap_list_tstamp_types and pcap_free_tstamp_types as well.
+    #
+    check_function_exists(pcap_set_tstamp_type HAVE_PCAP_SET_TSTAMP_TYPE)
+
+    #
+    # And do we have pcap_set_tstamp_precision?  If so, we assume
+    # we also have pcap_open_offline_with_tstamp_precision.
+    #
+    check_function_exists(pcap_set_tstamp_precision HAVE_PCAP_SET_TSTAMP_PRECISION)
+endif(HAVE_PCAP_CREATE)
+
+#
+# Check for a miscellaneous collection of functions which we use
+# if we have them.
+#
+check_function_exists(pcap_findalldevs HAVE_PCAP_FINDALLDEVS)
+if(HAVE_PCAP_FINDALLDEVS)
+    #
+    # Check for libpcap having pcap_findalldevs() but the pcap.h header
+    # not having pcap_if_t; some versions of Mac OS X shipped with pcap.h
+    # from 0.6 and libpcap 0.8, so that libpcap had pcap_findalldevs but
+    # pcap.h didn't have pcap_if_t.
+    #
+    cmake_push_check_state()
+    set(CMAKE_REQUIRED_INCLUDES ${PCAP_INCLUDE_DIRS})
+    set(CMAKE_EXTRA_INCLUDE_FILES pcap.h)
+    check_type_size(pcap_if_t PCAP_IF_T)
+    cmake_pop_check_state()
+endif(HAVE_PCAP_FINDALLDEVS)
+check_function_exists(pcap_dump_flush HAVE_PCAP_DUMP_FLUSH)
+check_function_exists(pcap_lib_version HAVE_PCAP_LIB_VERSION)
+if(NOT HAVE_PCAP_LIB_VERSION)
+    # Check for the pcap_version string variable and set HAVE_PCAP_VERSION
+endif(NOT HAVE_PCAP_LIB_VERSION)
+check_function_exists(pcap_setdirection HAVE_PCAP_SETDIRECTION)
+check_function_exists(pcap_set_immediate_mode HAVE_PCAP_SET_IMMEDIATE_MODE)
+check_function_exists(pcap_dump_ftell64 HAVE_PCAP_DUMP_FTELL64)
+check_function_exists(pcap_open HAVE_PCAP_OPEN)
+check_function_exists(pcap_findalldevs_ex HAVE_PCAP_FINDALLDEVS_EX)
+
+#
+# On Windows, check for pcap_wsockinit(); if we don't have it, check for
+# wsockinit().
+#
+if(WIN32)
+    check_function_exists(pcap_wsockinit HAVE_PCAP_WSOCKINIT)
+    if(NOT HAVE_PCAP_WSOCKINIT)
+        check_function_exists(wsockinit HAVE_WSOCKINIT)
+    endif(NOT HAVE_PCAP_WSOCKINIT)
+endif(WIN32)
+
+#
+# Check for special debugging functions
+#
+check_function_exists(pcap_set_parser_debug HAVE_PCAP_SET_PARSER_DEBUG)
+if(NOT HAVE_PCAP_SET_PARSER_DEBUG)
+    # Check whether libpcap defines pcap_debug or yydebug
+    check_variable_exists(pcap_debug HAVE_PCAP_DEBUG)
+    if(NOT HAVE_PCAP_DEBUG)
+        check_variable_exists(yydebug HAVE_YYDEBUG)
+    endif(NOT HAVE_PCAP_DEBUG)
+endif(NOT HAVE_PCAP_SET_PARSER_DEBUG)
+
+check_function_exists(pcap_set_optimizer_debug HAVE_PCAP_SET_OPTIMIZER_DEBUG)
+check_function_exists(bpf_dump HAVE_BPF_DUMP)
+
+cmake_pop_check_state()
+
+#
+# We have libpcap.
+#
+include_directories(SYSTEM ${PCAP_INCLUDE_DIRS})
+set(TCPDUMP_LINK_LIBRARIES ${PCAP_LIBRARIES} ${TCPDUMP_LINK_LIBRARIES})
+
+#
+# Optional libraries.
+#
+
+#
+# libsmi.
+#
+if(WITH_SMI)
+    find_package(SMI)
+    if(SMI_FOUND)
+        include_directories(SYSTEM ${SMI_INCLUDE_DIRS})
+        set(TCPDUMP_LINK_LIBRARIES ${TCPDUMP_LINK_LIBRARIES} ${SMI_LIBRARIES})
+        set(USE_LIBSMI ON)
+    endif(SMI_FOUND)
+endif(WITH_SMI)
+
+#
+# OpenSSL/libressl libcrypto.
+#
+if(WITH_CRYPTO)
+    find_package(CRYPTO)
+    if(CRYPTO_FOUND)
+        #
+        # Check for some headers and functions.
+        #
+        check_include_file(openssl/evp.h HAVE_OPENSSL_EVP_H)
+
+        #
+        # 1) do we have EVP_CIPHER_CTX_new?
+        # If so, we use it to allocate an EVP_CIPHER_CTX, as
+        # EVP_CIPHER_CTX may be opaque; otherwise, we allocate
+        # it ourselves.
+        #
+        cmake_push_check_state()
+        set(CMAKE_REQUIRED_LIBRARIES "${CRYPTO_LIBRARIES}")
+
+        check_function_exists(EVP_CIPHER_CTX_new HAVE_EVP_CIPHER_CTX_NEW)
+
+        #
+        # 2) do we have EVP_DecryptInit_ex()?
+        # If so, we use it, because we need to be able to make two
+        # "initialize the cipher" calls, one with the cipher and key,
+        # and one with the IV, and, as of OpenSSL 1.1, You Can't Do That
+        # with EVP_DecryptInit(), because a call to EVP_DecryptInit() will
+        # unconditionally clear the context, and if you don't supply a
+        # cipher, it'll clear the cipher, rendering the context unusable
+        # and causing a crash.
+        #
+        check_function_exists(EVP_DecryptInit_ex HAVE_EVP_DECRYPTINIT_EX)
+
+        cmake_pop_check_state()
+
+        #
+        # We have libcrypto.
+        #
+        include_directories(SYSTEM ${CRYPTO_INCLUDE_DIRS})
+        set(TCPDUMP_LINK_LIBRARIES ${TCPDUMP_LINK_LIBRARIES} ${CRYPTO_LIBRARIES})
+        set(HAVE_LIBCRYPTO ON)
+    endif(CRYPTO_FOUND)
+endif(WITH_CRYPTO)
+
+#
+# Capsicum sandboxing.
+# Some of this is in the system library, some of it is in other libraries.
+#
+if(WITH_CAPSICUM)
+    check_include_files("sys/capsicum.h" HAVE_SYS_CAPSICUM_H)
+    if(HAVE_SYS_CAPSICUM_H)
+        check_function_exists(cap_enter HAVE_CAP_ENTER)
+        check_function_exists(cap_rights_limit HAVE_CAP_RIGHTS_LIMIT)
+        check_function_exists(cap_ioctls_limit HAVE_CAP_IOCTLS_LIMIT)
+        check_function_exists(openat HAVE_OPENAT)
+        if(HAVE_CAP_ENTER AND HAVE_CAP_RIGHTS_LIMIT AND
+           HAVE_CAP_IOCTLS_LIMIT AND HAVE_OPENAT)
+            #
+            # OK, we have the functions we need to support Capsicum.
+            #
+            set(HAVE_CAPSICUM TRUE)
+
+            #
+            # OK, can we use Casper?
+            #
+            check_library_exists(casper cap_init "" HAVE_CAP_INIT)
+            if(HAVE_CAP_INIT)
+                cmake_push_check_state()
+                set(CMAKE_REQUIRED_LIBRARIES casper)
+                check_library_exists(cap_dns cap_gethostbyaddr "" HAVE_CAP_GETHOSTBYADDR)
+                cmake_pop_check_state()
+                if(HAVE_CAP_GETHOSTBYADDR)
+                    set(HAVE_CASPER TRUE)
+                    set(TCPDUMP_LINK_LIBRARIES ${TCPDUMP_LINK_LIBRARIES} casper cap_dns)
+                endif(HAVE_CAP_GETHOSTBYADDR)
+            endif(HAVE_CAP_INIT)
+        endif(HAVE_CAP_ENTER AND HAVE_CAP_RIGHTS_LIMIT AND
+              HAVE_CAP_IOCTLS_LIMIT AND HAVE_OPENAT)
+    endif(HAVE_SYS_CAPSICUM_H)
+endif(WITH_CAPSICUM)
+
+#
+# libcap-ng.
+#
+if(WITH_CAP_NG)
+    check_include_file(cap-ng.h HAVE_CAP_NG_H)
+    check_library_exists(cap-ng capng_change_id "" HAVE_LIBCAP_NG)
+    if(HAVE_LIBCAP_NG)
+        set(TCPDUMP_LINK_LIBRARIES ${TCPDUMP_LINK_LIBRARIES} cap-ng)
+    endif(HAVE_LIBCAP_NG)
+endif(WITH_CAP_NG)
+
+###################################################################
+#   Warning options
+###################################################################
+
+#
+# Check and add warning options if we have a .devel file.
+#
+if(EXISTS ${CMAKE_SOURCE_DIR}/.devel OR EXISTS ${CMAKE_BINARY_DIR}/.devel)
+    #
+    # Warning options.
+    #
+    if(MSVC AND NOT ${CMAKE_C_COMPILER} MATCHES "clang*")
+        #
+        # MSVC, with Microsoft's front end and code generator.
+        # "MSVC" is also set for Microsoft's compiler with a Clang
+        # front end and their code generator ("Clang/C2"), so we
+        # check for clang.exe and treat that differently.
+        #
+        check_and_add_compiler_option(-Wall)
+        #
+        # Disable some pointless warnings that /Wall turns on.
+        #
+        # Unfortunately, MSVC does not appear to have an equivalent
+        # to "__attribute__((unused))" to mark a particular function
+        # parameter as being known to be unused, so that the compiler
+        # won't warn about it (for example, the function might have
+        # that parameter because a pointer to it is being used, and
+        # the signature of that function includes that parameter).
+        # C++ lets you give a parameter a type but no name, but C
+        # doesn't have that.
+        #
+        check_and_add_compiler_option(-wd4100)
+        #
+        # In theory, we care whether somebody uses f() rather than
+        # f(void) to declare a function with no arguments, but, in
+        # practice, there are places in the Windows header files
+        # that appear to do that, so we squelch that warning.
+        #
+        check_and_add_compiler_option(-wd4255)
+        #
+        # Windows FD_SET() generates this, so we suppress it.
+        #
+        check_and_add_compiler_option(-wd4548)
+        #
+        # Perhaps testing something #defined to be 0 with #ifdef is an
+        # error, and it should be tested with #if, but perhaps it's
+        # not, and Microsoft does that in its headers, so we squelch
+        # that warning.
+        #
+        check_and_add_compiler_option(-wd4574)
+        #
+        # The Windows headers also test not-defined values in #if, so
+        # we don't want warnings about that, either.
+        #
+        check_and_add_compiler_option(-wd4668)
+        #
+        # We do *not* care whether some function is, or isn't, going to be
+        # expanded inline.
+        #
+        check_and_add_compiler_option(-wd4710)
+        check_and_add_compiler_option(-wd4711)
+        #
+        # We do *not* care whether we're adding padding bytes after
+        # structure members.
+        #
+        check_and_add_compiler_option(-wd4820)
+        #
+        # We do *not* care about every single place the compiler would
+        # have inserted Spectre mitigation if only we had told it to
+        # do so with /Qspectre.  I guess the theory is that it's seeing
+        # bounds checks that would prevent out-of-bounds loads and that
+        # those out-of-bounds loads could be done speculatively and that
+        # the Spectre attack could detect the value of the out-of-bounds
+        # data *if* it's within our address space, but unless I'm
+        # missing something I don't see that as being any form of
+        # security hole.
+        #
+        # XXX - add /Qspectre if that is really worth doing.
+        #
+        check_and_add_compiler_option(-wd5045)
+        #
+        # We do *not* care whether a structure had padding added at
+        # the end because of __declspec(align) - *we* don't use
+        # __declspec(align), because the only structures whose layout
+        # we precisely specify are those that get overlayed on packet
+        # data, and in those every element is an array of octets so
+        # that we have full control over the size and aligmnet, and,
+        # apparently, jmp_buf has such a declaration on x86, meaning
+        # that everything that includes netdissect.h, i.e. almost every
+        # file in tcpdump, gets a warning.
+        #
+        check_and_add_compiler_option(-wd4324)
+    else()
+        #
+        # Other compilers, including MSVC with a Clang front end and
+        # Microsoft's code generator.  We currently treat them as if
+        # they might support GCC-style -W options.
+        #
+        check_and_add_compiler_option(-W)
+        check_and_add_compiler_option(-Wall)
+        check_and_add_compiler_option(-Wassign-enum)
+        check_and_add_compiler_option(-Wcast-qual)
+        check_and_add_compiler_option(-Wmissing-prototypes)
+        check_and_add_compiler_option(-Wmissing-variable-declarations)
+        check_and_add_compiler_option(-Wold-style-definition)
+        check_and_add_compiler_option(-Wpedantic)
+        check_and_add_compiler_option(-Wpointer-arith)
+        check_and_add_compiler_option(-Wpointer-sign)
+        check_and_add_compiler_option(-Wshadow)
+        check_and_add_compiler_option(-Wsign-compare)
+        check_and_add_compiler_option(-Wstrict-prototypes)
+        check_and_add_compiler_option(-Wunreachable-code-return)
+        check_and_add_compiler_option(-Wused-but-marked-unused)
+        check_and_add_compiler_option(-Wwrite-strings)
+    endif()
+endif()
+
+#
+# Extra compiler options for the build matrix scripts to request -Werror or
+# its equivalent if required.  The CMake variable name cannot be CFLAGS
+# because that is already used for a different purpose in CMake.  Example
+# usage: cmake -DEXTRA_CFLAGS='-Wall -Wextra -Werror' ...
+#
+if(NOT "${EXTRA_CFLAGS}" STREQUAL "")
+    foreach(_extra_cflag ${EXTRA_CFLAGS})
+        check_and_add_compiler_option("${_extra_cflag}")
+    endforeach(_extra_cflag)
+    message(STATUS "Added extra compile options (${EXTRA_CFLAGS})")
+endif()
+
+######################################
+# Input files
+######################################
+
+if(ENABLE_SMB)
+    #
+    # We allow the SMB dissector to be omitted.
+    #
+    set(LOCALSRC ${LOCALSRC}
+        print-smb.c
+        smbutil.c)
+endif(ENABLE_SMB)
+
+set(NETDISSECT_SOURCE_LIST_C
+    addrtoname.c
+    addrtostr.c
+    af.c
+    ascii_strcasecmp.c
+    checksum.c
+    cpack.c
+    gmpls.c
+    in_cksum.c
+    ipproto.c
+    l2vpn.c
+    machdep.c
+    netdissect.c
+    netdissect-alloc.c
+    nlpid.c
+    oui.c
+    ntp.c
+    parsenfsfh.c
+    print.c
+    print-802_11.c
+    print-802_15_4.c
+    print-ah.c
+    print-ahcp.c
+    print-aodv.c
+    print-aoe.c
+    print-ap1394.c
+    print-arcnet.c
+    print-arista.c
+    print-arp.c
+    print-ascii.c
+    print-atalk.c
+    print-atm.c
+    print-babel.c
+    print-bcm-li.c
+    print-beep.c
+    print-bfd.c
+    print-bgp.c
+    print-bootp.c
+    print-brcmtag.c
+    print-bt.c
+    print-calm-fast.c
+    print-carp.c
+    print-cdp.c
+    print-cfm.c
+    print-chdlc.c
+    print-cip.c
+    print-cnfp.c
+    print-dccp.c
+    print-decnet.c
+    print-dhcp6.c
+    print-domain.c
+    print-dsa.c
+    print-dtp.c
+    print-dvmrp.c
+    print-eap.c
+    print-egp.c
+    print-eigrp.c
+    print-enc.c
+    print-esp.c
+    print-ether.c
+    print-fddi.c
+    print-forces.c
+    print-fr.c
+    print-frag6.c
+    print-ftp.c
+    print-geneve.c
+    print-geonet.c
+    print-gre.c
+    print-hncp.c
+    print-hsrp.c
+    print-http.c
+    print-icmp.c
+    print-icmp6.c
+    print-igmp.c
+    print-igrp.c
+    print-ip-demux.c
+    print-ip.c
+    print-ip6.c
+    print-ip6opts.c
+    print-ipcomp.c
+    print-ipfc.c
+    print-ipnet.c
+    print-ipoib.c
+    print-ipx.c
+    print-isakmp.c
+    print-isoclns.c
+    print-juniper.c
+    print-krb.c
+    print-l2tp.c
+    print-lane.c
+    print-ldp.c
+    print-lisp.c
+    print-llc.c
+    print-lldp.c
+    print-lmp.c
+    print-loopback.c
+    print-lspping.c
+    print-lwapp.c
+    print-lwres.c
+    print-m3ua.c
+    print-macsec.c
+    print-mobile.c
+    print-mobility.c
+    print-mpcp.c
+    print-mpls.c
+    print-mptcp.c
+    print-msdp.c
+    print-msnlb.c
+    print-nflog.c
+    print-nfs.c
+    print-nsh.c
+    print-ntp.c
+    print-null.c
+    print-olsr.c
+    print-openflow-1.0.c
+    print-openflow-1.3.c
+    print-openflow.c
+    print-ospf.c
+    print-ospf6.c
+    print-otv.c
+    print-pflog.c
+    print-pgm.c
+    print-pim.c
+    print-pktap.c
+    print-ppi.c
+    print-ppp.c
+    print-pppoe.c
+    print-pptp.c
+    print-ptp.c
+    print-radius.c
+    print-raw.c
+    print-realtek.c
+    print-resp.c
+    print-rip.c
+    print-ripng.c
+    print-rpki-rtr.c
+    print-rsvp.c
+    print-rt6.c
+    print-rtsp.c
+    print-rx.c
+    print-sctp.c
+    print-sflow.c
+    print-sip.c
+    print-sl.c
+    print-sll.c
+    print-slow.c
+    print-smtp.c
+    print-snmp.c
+    print-someip.c
+    print-ssh.c
+    print-stp.c
+    print-sunatm.c
+    print-sunrpc.c
+    print-symantec.c
+    print-syslog.c
+    print-tcp.c
+    print-telnet.c
+    print-tftp.c
+    print-timed.c
+    print-tipc.c
+    print-token.c
+    print-udld.c
+    print-udp.c
+    print-unsupported.c
+    print-usb.c
+    print-vjc.c
+    print-vqp.c
+    print-vrrp.c
+    print-vsock.c
+    print-vtp.c
+    print-vxlan-gpe.c
+    print-vxlan.c
+    print-wb.c
+    print-whois.c
+    print-zep.c
+    print-zephyr.c
+    print-zeromq.c
+    ${LOCALSRC}
+    signature.c
+    strtoaddr.c
+    util-print.c
+)
+
+#
+# Replace missing functions
+#
+foreach(FUNC strlcat strlcpy strdup strsep getservent getopt_long)
+    string(TOUPPER ${FUNC} FUNC_UPPERCASE)
+    set(HAVE_FUNC_UPPERCASE HAVE_${FUNC_UPPERCASE})
+    if(NOT ${HAVE_FUNC_UPPERCASE})
+        set(NETDISSECT_SOURCE_LIST_C ${NETDISSECT_SOURCE_LIST_C} missing/${FUNC}.c)
+    endif()
+endforeach()
+
+add_library(netdissect STATIC
+    ${NETDISSECT_SOURCE_LIST_C}
+)
+if(NOT C_ADDITIONAL_FLAGS STREQUAL "")
+    set_target_properties(netdissect PROPERTIES COMPILE_FLAGS ${C_ADDITIONAL_FLAGS})
+endif()
+
+set(TCPDUMP_SOURCE_LIST_C fptype.c tcpdump.c)
+
+if(NOT HAVE_BPF_DUMP)
+    set(TCPDUMP_SOURCE_LIST_C ${TCPDUMP_SOURCE_LIST_C} bpf_dump.c)
+endif(NOT HAVE_BPF_DUMP)
+if(NOT HAVE_PCAP_DUMP_FTELL)
+    set(TCPDUMP_SOURCE_LIST_C ${TCPDUMP_SOURCE_LIST_C} missing/pcap_dump_ftell.c)
+endif(NOT HAVE_PCAP_DUMP_FTELL)
+
+if(NOT HAVE_PCAP_LIST_DATALINKS)
+    set(TCPDUMP_SOURCE_LIST_C ${TCPDUMP_SOURCE_LIST_C} missing/datalinks.c)
+endif(NOT HAVE_PCAP_LIST_DATALINKS)
+
+if((NOT HAVE_PCAP_DATALINK_NAME_TO_VAL) OR (NOT HAVE_PCAP_DATALINK_VAL_TO_DESCRIPTION))
+    set(TCPDUMP_SOURCE_LIST_C ${TCPDUMP_SOURCE_LIST_C} missing/dlnames.c)
+endif((NOT HAVE_PCAP_DATALINK_NAME_TO_VAL) OR (NOT HAVE_PCAP_DATALINK_VAL_TO_DESCRIPTION))
+
+set(PROJECT_SOURCE_LIST_C ${NETDISSECT_SOURCE_LIST_C} ${TCPDUMP_SOURCE_LIST_C})
+
+file(GLOB PROJECT_SOURCE_LIST_H
+    *.h
+)
+
+#
+# Assume, by default, no support for shared libraries and V7/BSD
+# convention for man pages (devices in section 4, file formats in
+# section 5, miscellaneous info in section 7, administrative commands
+# and daemons in section 8).  Individual cases can override this.
+# Individual cases can override this.
+#
+set(MAN_FILE_FORMATS 5)
+set(MAN_MISC_INFO 7)
+if(CMAKE_SYSTEM_NAME STREQUAL "AIX")
+    # Workaround to enable certain features
+    set(_SUN TRUE)
+elseif(CMAKE_SYSTEM_NAME STREQUAL "HP-UX")
+    #
+    # Use System V conventions for man pages.
+    #
+    set(MAN_FILE_FORMATS 4)
+    set(MAN_MISC_INFO 5)
+elseif(CMAKE_SYSTEM_NAME STREQUAL "IRIX" OR CMAKE_SYSTEM_NAME STREQUAL "IRIX64")
+    #
+    # Use IRIX conventions for man pages; they're the same as the
+    # System V conventions, except that they use section 8 for
+    # administrative commands and daemons.
+    #
+    set(MAN_FILE_FORMATS 4)
+    set(MAN_MISC_INFO 5)
+elseif(CMAKE_SYSTEM_NAME STREQUAL "OSF1")
+    #
+    # DEC OSF/1, a/k/a Digital UNIX, a/k/a Tru64 UNIX.
+    # Use Tru64 UNIX conventions for man pages; they're the same as the
+    # System V conventions except that they use section 8 for
+    # administrative commands and daemons.
+    #
+    set(MAN_FILE_FORMATS 4)
+    set(MAN_MISC_INFO 5)
+elseif(CMAKE_SYSTEM_NAME STREQUAL "SunOS" AND CMAKE_SYSTEM_VERSION MATCHES "5[.][0-9.]*")
+    #
+    # SunOS 5.x.
+    #
+    if(CMAKE_SYSTEM_VERSION STREQUAL "5.12")
+    else()
+        #
+        # Use System V conventions for man pages.
+        #
+        set(MAN_FILE_FORMATS 4)
+        set(MAN_MISC_INFO 5)
+    endif()
+endif()
+
+source_group("Source Files" FILES ${PROJECT_SOURCE_LIST_C})
+source_group("Header Files" FILES ${PROJECT_SOURCE_LIST_H})
+
+######################################
+# Register targets
+######################################
+
+add_executable(tcpdump ${TCPDUMP_SOURCE_LIST_C})
+if(NOT C_ADDITIONAL_FLAGS STREQUAL "")
+    set_target_properties(tcpdump PROPERTIES COMPILE_FLAGS ${C_ADDITIONAL_FLAGS})
+endif()
+target_link_libraries(tcpdump netdissect ${TCPDUMP_LINK_LIBRARIES})
+
+######################################
+# Write out the config.h file
+######################################
+
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/cmakeconfig.h.in ${CMAKE_CURRENT_BINARY_DIR}/config.h)
+
+######################################
+# Install tcpdump and man pages
+######################################
+
+#
+# "Define GNU standard installation directories", which actually
+# are also defined, to some degree, by autotools, and at least
+# some of which are general UN*X conventions.
+#
+include(GNUInstallDirs)
+
+set(MAN1_EXPAND tcpdump.1.in)
+
+if(WIN32)
+    # XXX TODO where to install on Windows?
+else(WIN32)
+    install(TARGETS tcpdump DESTINATION bin)
+endif(WIN32)
+
+# On UN*X, and on Windows when not using MSVC, process man pages and
+# arrange that they be installed.
+if(NOT MSVC)
+    #
+    # Man pages.
+    #
+    # For each section of the manual for which we have man pages
+    # that require macro expansion, do the expansion.
+    #
+    set(MAN1 "")
+    foreach(TEMPLATE_MANPAGE ${MAN1_EXPAND})
+        string(REPLACE ".in" "" MANPAGE ${TEMPLATE_MANPAGE})
+        configure_file(${CMAKE_SOURCE_DIR}/${TEMPLATE_MANPAGE} ${CMAKE_CURRENT_BINARY_DIR}/${MANPAGE} @ONLY)
+        set(MAN1 ${MAN1} ${CMAKE_CURRENT_BINARY_DIR}/${MANPAGE})
+    endforeach(TEMPLATE_MANPAGE)
+    install(FILES ${MAN1} DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
+endif(NOT MSVC)
+
+# uninstall target
+configure_file(
+    "${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
+    "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
+    IMMEDIATE @ONLY)
+
+add_custom_target(uninstall
+    COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
+
+#
+# Tcpdump tests
+# We try to find the Perl interpreter and, if we do, we have the check
+# rule run tests/TESTrun with it, because just trying to run the TESTrun
+# script as a command won't work on Windows.
+#
+find_program(PERL perl)
+if(PERL)
+    message(STATUS "Found perl at ${PERL}")
+    add_custom_target(check
+        COMMAND ${PERL} ${CMAKE_SOURCE_DIR}/tests/TESTrun)
+else()
+    message(STATUS "Didn't find perl")
+endif()