#.rst: # FindOpenSSL # ----------- # # Try to find the OpenSSL encryption library # # Once done this will define # # :: # # OPENSSL_ROOT_DIR - Set this variable to the root installation of OpenSSL # # # # Read-Only variables: # # :: # # OPENSSL_FOUND - system has the OpenSSL library # OPENSSL_INCLUDE_DIR - the OpenSSL include directory # OPENSSL_LIBRARIES - The libraries needed to use OpenSSL # OPENSSL_VERSION - This is set to $major.$minor.$revision$path (eg. 0.9.8s) #============================================================================= # Copyright 2006-2009 Kitware, Inc. # Copyright 2006 Alexander Neundorf <neundorf@kde.org> # Copyright 2009-2011 Mathieu Malaterre <mathieu.malaterre@gmail.com> # # Distributed under the OSI-approved BSD License (the "License"); # see accompanying file Copyright.txt for details. # # This software is distributed WITHOUT ANY WARRANTY; without even the # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. # See the License for more information. #============================================================================= # (To distribute this file outside of CMake, substitute the full # License text for the above reference.) if (UNIX) find_package(PkgConfig QUIET) pkg_check_modules(_OPENSSL QUIET openssl) endif () if (WIN32) # http://www.slproweb.com/products/Win32OpenSSL.html set(_OPENSSL_ROOT_HINTS ${OPENSSL_ROOT_DIR} "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\OpenSSL (32-bit)_is1;Inno Setup: App Path]" "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\OpenSSL (64-bit)_is1;Inno Setup: App Path]" ENV OPENSSL_ROOT_DIR ) file(TO_CMAKE_PATH "$ENV{PROGRAMFILES}" _programfiles) set(_OPENSSL_ROOT_PATHS "${_programfiles}/OpenSSL" "${_programfiles}/OpenSSL-Win32" "${_programfiles}/OpenSSL-Win64" "C:/OpenSSL/" "C:/OpenSSL-Win32/" "C:/OpenSSL-Win64/" ) unset(_programfiles) else () set(_OPENSSL_ROOT_HINTS ${OPENSSL_ROOT_DIR} ENV OPENSSL_ROOT_DIR ) endif () set(_OPENSSL_ROOT_HINTS_AND_PATHS HINTS ${_OPENSSL_ROOT_HINTS} PATHS ${_OPENSSL_ROOT_PATHS} ) find_path(OPENSSL_INCLUDE_DIR NAMES openssl/ssl.h ${_OPENSSL_ROOT_HINTS_AND_PATHS} HINTS ${_OPENSSL_INCLUDEDIR} PATH_SUFFIXES include ) if(WIN32 AND NOT CYGWIN) if(MSVC) # /MD and /MDd are the standard values - if someone wants to use # others, the libnames have to change here too # use also ssl and ssleay32 in debug as fallback for openssl < 0.9.8b # TODO: handle /MT and static lib # In Visual C++ naming convention each of these four kinds of Windows libraries has it's standard suffix: # * MD for dynamic-release # * MDd for dynamic-debug # * MT for static-release # * MTd for static-debug # Implementation details: # We are using the libraries located in the VC subdir instead of the parent directory eventhough : # libeay32MD.lib is identical to ../libeay32.lib, and # ssleay32MD.lib is identical to ../ssleay32.lib find_library(LIB_EAY_DEBUG NAMES libeay32MDd libeay32d ${_OPENSSL_ROOT_HINTS_AND_PATHS} PATH_SUFFIXES "lib" "VC" "lib/VC" ) find_library(LIB_EAY_RELEASE NAMES libeay32MD libeay32 ${_OPENSSL_ROOT_HINTS_AND_PATHS} PATH_SUFFIXES "lib" "VC" "lib/VC" ) find_library(SSL_EAY_DEBUG NAMES ssleay32MDd ssleay32d ${_OPENSSL_ROOT_HINTS_AND_PATHS} PATH_SUFFIXES "lib" "VC" "lib/VC" ) find_library(SSL_EAY_RELEASE NAMES ssleay32MD ssleay32 ssl ${_OPENSSL_ROOT_HINTS_AND_PATHS} PATH_SUFFIXES "lib" "VC" "lib/VC" ) set(LIB_EAY_LIBRARY_DEBUG "${LIB_EAY_DEBUG}") set(LIB_EAY_LIBRARY_RELEASE "${LIB_EAY_RELEASE}") set(SSL_EAY_LIBRARY_DEBUG "${SSL_EAY_DEBUG}") set(SSL_EAY_LIBRARY_RELEASE "${SSL_EAY_RELEASE}") include(${CMAKE_CURRENT_LIST_DIR}/SelectLibraryConfigurations.cmake) select_library_configurations(LIB_EAY) select_library_configurations(SSL_EAY) mark_as_advanced(LIB_EAY_LIBRARY_DEBUG LIB_EAY_LIBRARY_RELEASE SSL_EAY_LIBRARY_DEBUG SSL_EAY_LIBRARY_RELEASE) set( OPENSSL_LIBRARIES ${SSL_EAY_LIBRARY} ${LIB_EAY_LIBRARY} ) elseif(MINGW) # same player, for MinGW set(LIB_EAY_NAMES libeay32) set(SSL_EAY_NAMES ssleay32) if(CMAKE_CROSSCOMPILING) list(APPEND LIB_EAY_NAMES crypto) list(APPEND SSL_EAY_NAMES ssl) endif() find_library(LIB_EAY NAMES ${LIB_EAY_NAMES} ${_OPENSSL_ROOT_HINTS_AND_PATHS} PATH_SUFFIXES "lib" "lib/MinGW" ) find_library(SSL_EAY NAMES ${SSL_EAY_NAMES} ${_OPENSSL_ROOT_HINTS_AND_PATHS} PATH_SUFFIXES "lib" "lib/MinGW" ) mark_as_advanced(SSL_EAY LIB_EAY) set( OPENSSL_LIBRARIES ${SSL_EAY} ${LIB_EAY} ) unset(LIB_EAY_NAMES) unset(SSL_EAY_NAMES) else() # Not sure what to pick for -say- intel, let's use the toplevel ones and hope someone report issues: find_library(LIB_EAY NAMES libeay32 ${_OPENSSL_ROOT_HINTS_AND_PATHS} HINTS ${_OPENSSL_LIBDIR} PATH_SUFFIXES lib ) find_library(SSL_EAY NAMES ssleay32 ${_OPENSSL_ROOT_HINTS_AND_PATHS} HINTS ${_OPENSSL_LIBDIR} PATH_SUFFIXES lib ) mark_as_advanced(SSL_EAY LIB_EAY) set( OPENSSL_LIBRARIES ${SSL_EAY} ${LIB_EAY} ) endif() else() find_library(OPENSSL_SSL_LIBRARY NAMES ssl ssleay32 ssleay32MD ${_OPENSSL_ROOT_HINTS_AND_PATHS} HINTS ${_OPENSSL_LIBDIR} PATH_SUFFIXES lib ) find_library(OPENSSL_CRYPTO_LIBRARY NAMES crypto ${_OPENSSL_ROOT_HINTS_AND_PATHS} HINTS ${_OPENSSL_LIBDIR} PATH_SUFFIXES lib ) mark_as_advanced(OPENSSL_CRYPTO_LIBRARY OPENSSL_SSL_LIBRARY) # compat defines set(OPENSSL_SSL_LIBRARIES ${OPENSSL_SSL_LIBRARY}) set(OPENSSL_CRYPTO_LIBRARIES ${OPENSSL_CRYPTO_LIBRARY}) set(OPENSSL_LIBRARIES ${OPENSSL_SSL_LIBRARY} ${OPENSSL_CRYPTO_LIBRARY}) endif() function(from_hex HEX DEC) string(TOUPPER "${HEX}" HEX) set(_res 0) string(LENGTH "${HEX}" _strlen) while (_strlen GREATER 0) math(EXPR _res "${_res} * 16") string(SUBSTRING "${HEX}" 0 1 NIBBLE) string(SUBSTRING "${HEX}" 1 -1 HEX) if (NIBBLE STREQUAL "A") math(EXPR _res "${_res} + 10") elseif (NIBBLE STREQUAL "B") math(EXPR _res "${_res} + 11") elseif (NIBBLE STREQUAL "C") math(EXPR _res "${_res} + 12") elseif (NIBBLE STREQUAL "D") math(EXPR _res "${_res} + 13") elseif (NIBBLE STREQUAL "E") math(EXPR _res "${_res} + 14") elseif (NIBBLE STREQUAL "F") math(EXPR _res "${_res} + 15") else() math(EXPR _res "${_res} + ${NIBBLE}") endif() string(LENGTH "${HEX}" _strlen) endwhile() set(${DEC} ${_res} PARENT_SCOPE) endfunction() if (OPENSSL_INCLUDE_DIR) if (_OPENSSL_VERSION) set(OPENSSL_VERSION "${_OPENSSL_VERSION}") elseif(OPENSSL_INCLUDE_DIR AND EXISTS "${OPENSSL_INCLUDE_DIR}/openssl/opensslv.h") file(STRINGS "${OPENSSL_INCLUDE_DIR}/openssl/opensslv.h" openssl_version_str REGEX "^#define[\t ]+OPENSSL_VERSION_NUMBER[\t ]+0x([0-9a-fA-F])+.*") # The version number is encoded as 0xMNNFFPPS: major minor fix patch status # The status gives if this is a developer or prerelease and is ignored here. # Major, minor, and fix directly translate into the version numbers shown in # the string. The patch field translates to the single character suffix that # indicates the bug fix state, which 00 -> nothing, 01 -> a, 02 -> b and so # on. string(REGEX REPLACE "^.*OPENSSL_VERSION_NUMBER[\t ]+0x([0-9a-fA-F])([0-9a-fA-F][0-9a-fA-F])([0-9a-fA-F][0-9a-fA-F])([0-9a-fA-F][0-9a-fA-F])([0-9a-fA-F]).*$" "\\1;\\2;\\3;\\4;\\5" OPENSSL_VERSION_LIST "${openssl_version_str}") list(GET OPENSSL_VERSION_LIST 0 OPENSSL_VERSION_MAJOR) list(GET OPENSSL_VERSION_LIST 1 OPENSSL_VERSION_MINOR) from_hex("${OPENSSL_VERSION_MINOR}" OPENSSL_VERSION_MINOR) list(GET OPENSSL_VERSION_LIST 2 OPENSSL_VERSION_FIX) from_hex("${OPENSSL_VERSION_FIX}" OPENSSL_VERSION_FIX) list(GET OPENSSL_VERSION_LIST 3 OPENSSL_VERSION_PATCH) if (NOT OPENSSL_VERSION_PATCH STREQUAL "00") from_hex("${OPENSSL_VERSION_PATCH}" _tmp) # 96 is the ASCII code of 'a' minus 1 math(EXPR OPENSSL_VERSION_PATCH_ASCII "${_tmp} + 96") unset(_tmp) # Once anyone knows how OpenSSL would call the patch versions beyond 'z' # this should be updated to handle that, too. This has not happened yet # so it is simply ignored here for now. string(ASCII "${OPENSSL_VERSION_PATCH_ASCII}" OPENSSL_VERSION_PATCH_STRING) endif () set(OPENSSL_VERSION "${OPENSSL_VERSION_MAJOR}.${OPENSSL_VERSION_MINOR}.${OPENSSL_VERSION_FIX}${OPENSSL_VERSION_PATCH_STRING}") endif () endif () include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake) if (OPENSSL_VERSION) find_package_handle_standard_args(OpenSSL REQUIRED_VARS OPENSSL_LIBRARIES OPENSSL_INCLUDE_DIR VERSION_VAR OPENSSL_VERSION FAIL_MESSAGE "Could NOT find OpenSSL, try to set the path to OpenSSL root folder in the system variable OPENSSL_ROOT_DIR" ) else () find_package_handle_standard_args(OpenSSL "Could NOT find OpenSSL, try to set the path to OpenSSL root folder in the system variable OPENSSL_ROOT_DIR" OPENSSL_LIBRARIES OPENSSL_INCLUDE_DIR ) endif () mark_as_advanced(OPENSSL_INCLUDE_DIR OPENSSL_LIBRARIES)