147 lines
4.9 KiB
CMake
147 lines
4.9 KiB
CMake
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#
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# $Id: FindPCAP.cmake 38372 2011-08-05 18:52:53Z gerald $
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#
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###################################################################
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#
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# Copyright (c) 2006 Frederic Heem, <frederic.heem@telsey.it>
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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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# * 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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#
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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#
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# * Neither the name of the Telsey nor the names of its
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# contributors may be used to endorse or promote products derived
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# from 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
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# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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###################################################################
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# - Find pcap
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# Find the PCAP includes and library
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# http://www.tcpdump.org/
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#
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# The environment variable PCAPDIR allows to specficy where to find
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# libpcap in non standard location.
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#
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# PCAP_INCLUDE_DIRS - where to find pcap.h, etc.
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# PCAP_LIBRARIES - List of libraries when using pcap.
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# PCAP_FOUND - True if pcap found.
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IF(EXISTS $ENV{PCAPDIR})
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FIND_PATH(PCAP_INCLUDE_DIR
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NAMES
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pcap/pcap.h
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pcap.h
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PATHS
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$ENV{PCAPDIR}
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NO_DEFAULT_PATH
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)
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FIND_LIBRARY(PCAP_LIBRARY
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NAMES
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pcap
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PATHS
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$ENV{PCAPDIR}
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NO_DEFAULT_PATH
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)
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ELSE(EXISTS $ENV{PCAPDIR})
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FIND_PATH(PCAP_INCLUDE_DIR
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NAMES
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pcap/pcap.h
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pcap.h
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HINTS
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/usr/local/opt/libpcap/include
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)
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FIND_LIBRARY(PCAP_LIBRARY
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NAMES
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pcap
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HINTS
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/usr/local/opt/libpcap/lib
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)
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ENDIF(EXISTS $ENV{PCAPDIR})
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SET(PCAP_INCLUDE_DIRS ${PCAP_INCLUDE_DIR})
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SET(PCAP_LIBRARIES ${PCAP_LIBRARY})
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IF(PCAP_INCLUDE_DIRS)
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MESSAGE(STATUS "Pcap include dirs set to ${PCAP_INCLUDE_DIRS}")
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ELSE(PCAP_INCLUDE_DIRS)
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MESSAGE(FATAL " Pcap include dirs cannot be found")
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ENDIF(PCAP_INCLUDE_DIRS)
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IF(PCAP_LIBRARIES)
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MESSAGE(STATUS "Pcap library set to ${PCAP_LIBRARIES}")
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ELSE(PCAP_LIBRARIES)
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MESSAGE(FATAL "Pcap library cannot be found")
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ENDIF(PCAP_LIBRARIES)
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#Functions
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INCLUDE(CheckFunctionExists)
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INCLUDE(CheckVariableExists)
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SET(CMAKE_REQUIRED_INCLUDES ${PCAP_INCLUDE_DIRS})
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SET(CMAKE_REQUIRED_LIBRARIES ${PCAP_LIBRARIES})
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CHECK_VARIABLE_EXISTS("pcap_version" HAVE_PCAP_VERSION)
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CHECK_FUNCTION_EXISTS("pcap_open_dead" HAVE_PCAP_OPEN_DEAD)
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CHECK_FUNCTION_EXISTS("pcap_freecode" HAVE_PCAP_FREECODE)
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#
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# Note: for pcap_breakloop() and pcap_findalldevs(), the autoconf script
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# checks for more than just whether the function exists, it also checks
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# for whether pcap.h declares it; Mac OS X software/security updates can
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# update libpcap without updating the headers.
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#
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CHECK_FUNCTION_EXISTS("pcap_breakloop" HAVE_PCAP_BREAKLOOP)
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CHECK_FUNCTION_EXISTS("pcap_create" HAVE_PCAP_CREATE)
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CHECK_FUNCTION_EXISTS("pcap_datalink_name_to_val" HAVE_PCAP_DATALINK_NAME_TO_VAL)
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CHECK_FUNCTION_EXISTS("pcap_datalink_val_to_description" HAVE_PCAP_DATALINK_VAL_TO_DESCRIPTION)
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CHECK_FUNCTION_EXISTS("pcap_datalink_val_to_name" HAVE_PCAP_DATALINK_VAL_TO_NAME)
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CHECK_FUNCTION_EXISTS("pcap_findalldevs" HAVE_PCAP_FINDALLDEVS)
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CHECK_FUNCTION_EXISTS("pcap_free_datalinks" HAVE_PCAP_FREE_DATALINKS)
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CHECK_FUNCTION_EXISTS("pcap_get_selectable_fd" HAVE_PCAP_GET_SELECTABLE_FD)
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CHECK_FUNCTION_EXISTS("pcap_lib_version" HAVE_PCAP_LIB_VERSION)
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CHECK_FUNCTION_EXISTS("pcap_list_datalinks" HAVE_PCAP_LIST_DATALINKS)
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CHECK_FUNCTION_EXISTS("pcap_set_datalink" HAVE_PCAP_SET_DATALINK)
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# Remote pcap checks
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CHECK_FUNCTION_EXISTS("pcap_open" H_PCAP_OPEN)
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CHECK_FUNCTION_EXISTS("pcap_findalldevs_ex" H_FINDALLDEVS_EX)
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CHECK_FUNCTION_EXISTS("pcap_createsrcstr" H_CREATESRCSTR)
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if(H_PCAP_OPEN AND H_FINDALLDEVS_EX AND H_CREATESRCSTR)
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SET(HAVE_PCAP_REMOTE 1)
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SET(HAVE_REMOTE 1)
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endif()
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# reset vars
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SET(CMAKE_REQUIRED_INCLUDES "")
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SET(CMAKE_REQUIRED_LIBRARIES "")
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INCLUDE(FindPackageHandleStandardArgs)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(PCAP DEFAULT_MSG PCAP_INCLUDE_DIRS PCAP_LIBRARIES)
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MARK_AS_ADVANCED(
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PCAP_LIBRARIES
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PCAP_INCLUDE_DIRS
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)
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