cmake: fuzzing

CMakeLists.txt

-CMAKE_MINIMUM_REQUIRED(VERSION 2.8.6)
-INCLUDE(CheckIncludeFiles)
-INCLUDE(TestBigEndian)
-INCLUDE(CheckCSourceCompiles)
-INCLUDE(cmake/macros.cmake)
-PROJECT(libaec)
-SET(libaec_VERSION_MAJOR 1)
-SET(libaec_VERSION_MINOR 0)
-SET(libaec_VERSION_PATCH 0)
-SET(CMAKE_BUILD_TYPE Release)
-ENABLE_TESTING()
+cmake_minimum_required(VERSION 2.8.6)
+include(CheckIncludeFiles)
+include(TestBigEndian)
+include(CheckCSourceCompiles)
+include(cmake/macros.cmake)
+project(libaec)
+set(libaec_VERSION_MAJOR 1)
+set(libaec_VERSION_MINOR 0)
+set(libaec_VERSION_PATCH 0)
+set(CMAKE_BUILD_TYPE Release)
+enable_testing()
 
-CHECK_INCLUDE_FILES(malloc.h HAVE_MALLOC_H)
-CHECK_INCLUDE_FILES(stdint.h HAVE_STDINT_H)
-TEST_BIG_ENDIAN(WORDS_BIGENDIAN)
-CHECK_CLZLL(HAVE_DECL___BUILTIN_CLZLL)
-IF(NOT HAVE_DECL___BUILTIN_CLZLL)
-  CHECK_BSR64(HAVE_BSR64)
-ENDIF(NOT HAVE_DECL___BUILTIN_CLZLL)
-FIND_INLINE_KEYWORD()
-FIND_RESTRICT_KEYWORD()
+check_include_files(malloc.h HAVE_MALLOC_H)
+check_include_files(stdint.h HAVE_STDINT_H)
+test_big_endian(WORDS_BIGENDIAN)
+check_clzll(HAVE_DECL___BUILTIN_CLZLL)
+if(NOT HAVE_DECL___BUILTIN_CLZLL)
+  check_bsr64(HAVE_BSR64)
+endif(NOT HAVE_DECL___BUILTIN_CLZLL)
+find_inline_keyword()
+find_restrict_keyword()
 
-CONFIGURE_FILE(
+configure_file(
   ${CMAKE_CURRENT_SOURCE_DIR}/cmake/config.h.in
-  ${CMAKE_CURRENT_BINARY_DIR}/config.h
-  )
-ADD_DEFINITIONS("-DHAVE_CONFIG_H")
+  ${CMAKE_CURRENT_BINARY_DIR}/config.h)
+add_definitions("-DHAVE_CONFIG_H")
 
-# Allow the developer to select if Dynamic or Static libraries are built
-OPTION(BUILD_SHARED_LIBS "Build Shared Libraries" ON)
-IF(BUILD_SHARED_LIBS)
-  SET (LIB_TYPE SHARED)
-ELSE(BUILD_SHARED_LIBS)
-  IF(WIN32)
-    MESSAGE(WARNING "You will have to modify libaec.h for static libs.")
-  ENDIF(WIN32)
-  SET(LIB_TYPE STATIC)
-ENDIF(BUILD_SHARED_LIBS)
+option(BUILD_SHARED_LIBS "Build Shared Libraries" ON)
+if(BUILD_SHARED_LIBS)
+  set (LIB_TYPE SHARED)
+else(BUILD_SHARED_LIBS)
+  if(WIN32)
+    message(WARNING "You will have to modify libaec.h for static libs.")
+  endif(WIN32)
+  set(LIB_TYPE STATIC)
+endif(BUILD_SHARED_LIBS)
 
-INCLUDE_DIRECTORIES("${PROJECT_BINARY_DIR}")
-INCLUDE_DIRECTORIES("${PROJECT_BINARY_DIR}/src")
-INCLUDE_DIRECTORIES("${PROJECT_SOURCE_DIR}/src")
+set(libaec_SRCS
+  ${PROJECT_SOURCE_DIR}/src/encode.c
+  ${PROJECT_SOURCE_DIR}/src/encode_accessors.c
+  ${PROJECT_SOURCE_DIR}/src/decode.c)
 
-ADD_SUBDIRECTORY(src)
-# EXCLUDE_FROM_ALL doesn't seem to be working in VS
-ADD_SUBDIRECTORY(tests)
+include_directories("${PROJECT_BINARY_DIR}")
+include_directories("${PROJECT_SOURCE_DIR}/src")
 
-SET(CPACK_PACKAGE_NAME "libaec")
-SET(CPACK_PACKAGE_VENDOR "Deutsches Klimarechenzentrum GmbH")
-SET(CPACK_PACKAGE_DESCRIPTION_SUMMARY
+add_subdirectory(src)
+add_subdirectory(tests)
+
+option(AEC_FUZZING "Enable build of fuzzing targets" OFF)
+if(AEC_FUZZING)
+  add_subdirectory(fuzz)
+endif()
+
+set(CPACK_PACKAGE_NAME "libaec")
+set(CPACK_PACKAGE_VENDOR "Deutsches Klimarechenzentrum GmbH")
+set(CPACK_PACKAGE_DESCRIPTION_SUMMARY
   "libaec - Adaptive Entropy Coding library")
-SET(CPACK_PACKAGE_VERSION_MAJOR "${libaec_VERSION_MAJOR}")
-SET(CPACK_PACKAGE_VERSION_MINOR "${libaec_VERSION_MINOR}")
-SET(CPACK_PACKAGE_VERSION_PATCH "${libaec_VERSION_PATCH}")
-SET(CPACK_PACKAGE_INSTALL_DIRECTORY "libaec")
-SET(CPACK_RESOURCE_FILE_LICENSE "${PROJECT_SOURCE_DIR}/Copyright.txt")
+set(CPACK_PACKAGE_VERSION_MAJOR "${libaec_VERSION_MAJOR}")
+set(CPACK_PACKAGE_VERSION_MINOR "${libaec_VERSION_MINOR}")
+set(CPACK_PACKAGE_VERSION_PATCH "${libaec_VERSION_PATCH}")
+set(CPACK_PACKAGE_INSTALL_DIRECTORY "libaec")
+set(CPACK_RESOURCE_FILE_LICENSE "${PROJECT_SOURCE_DIR}/Copyright.txt")
 
-IF(WIN32)
-  SET(CPACK_GENERATOR "WIX")
-  SET(CPACK_WIX_UPGRADE_GUID "E58A21F6-BB99-46B5-8AD8-6114E4CCA0A6")
-  IF(CMAKE_CL_64)
-    SET(CPACK_INSTALL_DIRECTORY "$PROGRAMFILES64")
-    SET(CPACK_PACKAGE_INSTALL_REGISTRY_KEY
+if(WIN32)
+  set(CPACK_GENERATOR "WIX")
+  set(CPACK_WIX_UPGRADE_GUID "E58A21F6-BB99-46B5-8AD8-6114E4CCA0A6")
+  if(CMAKE_CL_64)
+    set(CPACK_INSTALL_DIRECTORY "$PROGRAMFILES64")
+    set(CPACK_PACKAGE_INSTALL_REGISTRY_KEY
       "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION} (Win64)")
-  ELSE(CMAKE_CL_64)
-    SET(CPACK_INSTALL_DIRECTORY "$PROGRAMFILES")
-    SET(CPACK_PACKAGE_INSTALL_REGISTRY_KEY
+  else(CMAKE_CL_64)
+    set(CPACK_INSTALL_DIRECTORY "$PROGRAMFILES")
+    set(CPACK_PACKAGE_INSTALL_REGISTRY_KEY
       "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}")
-  ENDIF(CMAKE_CL_64)
-ENDIF(WIN32)
+  endif(CMAKE_CL_64)
+endif(WIN32)
 
-INCLUDE(CPack)
+include(CPack)

cmake/macros.cmake

-MACRO(CHECK_CLZLL VARIABLE)
-  CHECK_C_SOURCE_COMPILES(
+macro(check_clzll VARIABLE)
+  check_c_source_compiles(
     "int main(int argc, char *argv[])
 {return __builtin_clzll(1LL);}"
     ${VARIABLE}
     )
-ENDMACRO()
+endmacro()
 
-MACRO(CHECK_BSR64 VARIABLE)
-  CHECK_C_SOURCE_COMPILES(
+macro(check_bsr64 VARIABLE)
+  check_c_source_compiles(
     "int main(int argc, char *argv[])
 {unsigned long foo; unsigned __int64 bar=1LL;
 return _BitScanReverse64(&foo, bar);}"
     ${VARIABLE}
     )
-ENDMACRO()
+endmacro()
 
-MACRO(FIND_INLINE_KEYWORD)
+macro(find_inline_keyword)
   #Inspired from http://www.cmake.org/Wiki/CMakeTestInline
-  SET(INLINE_TEST_SRC "/* Inspired by autoconf's c.m4 */
+  set(INLINE_TEST_SRC "/* Inspired by autoconf's c.m4 */
 static inline int static_foo(){return 0\;}
 int main(int argc, char *argv[]){return 0\;}
 ")
-  FILE(WRITE ${CMAKE_CURRENT_BINARY_DIR}/CMakeTestCInline.c
+  file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/CMakeTestCInline.c
     ${INLINE_TEST_SRC})
 
-  FOREACH(KEYWORD "inline" "__inline__" "__inline")
-    IF(NOT DEFINED C_INLINE)
-      TRY_COMPILE(C_HAS_${KEYWORD}
+  foreach(KEYWORD "inline" "__inline__" "__inline")
+    if(NOT DEFINED C_INLINE)
+      try_compile(C_HAS_${KEYWORD}
         ${CMAKE_CURRENT_BINARY_DIR}
         ${CMAKE_CURRENT_BINARY_DIR}/CMakeTestCInline.c
         COMPILE_DEFINITIONS "-Dinline=${KEYWORD}"
         )
-      IF(C_HAS_${KEYWORD})
-        SET(C_INLINE TRUE)
-        ADD_DEFINITIONS("-Dinline=${KEYWORD}")
-        MESSAGE(STATUS "Inline keyword found - ${KEYWORD}")
-      ENDIF(C_HAS_${KEYWORD})
-    ENDIF(NOT DEFINED C_INLINE)
-  ENDFOREACH(KEYWORD)
+      if(C_HAS_${KEYWORD})
+        set(C_INLINE TRUE)
+        add_definitions("-Dinline=${KEYWORD}")
+        message(STATUS "Inline keyword found - ${KEYWORD}")
+      endif(C_HAS_${KEYWORD})
+    endif(NOT DEFINED C_INLINE)
+  endforeach(KEYWORD)
 
-  IF(NOT DEFINED C_INLINE)
-    ADD_DEFINITIONS("-Dinline=")
-    MESSAGE(STATUS "Inline keyword - not found")
-  ENDIF(NOT DEFINED C_INLINE)
-ENDMACRO(FIND_INLINE_KEYWORD)
+  if(NOT DEFINED C_INLINE)
+    add_definitions("-Dinline=")
+    message(STATUS "Inline keyword - not found")
+  endif(NOT DEFINED C_INLINE)
+endmacro(find_inline_keyword)
 
-MACRO(FIND_RESTRICT_KEYWORD)
-  SET(RESTRICT_TEST_SRC "/* Inspired by autoconf's c.m4 */
+macro(find_restrict_keyword)
+  set(RESTRICT_TEST_SRC "/* Inspired by autoconf's c.m4 */
 int foo (int * restrict ip){return ip[0]\;}
 int main(int argc, char *argv[]){int s[1]\;
 int * restrict t = s\; t[0] = 0\; return foo(t)\;}
 ")
 
-  FILE(WRITE ${CMAKE_CURRENT_BINARY_DIR}/CMakeTestCRestrict.c
+  file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/CMakeTestCRestrict.c
     ${RESTRICT_TEST_SRC})
 
-  FOREACH(KEYWORD "restrict" "__restrict" "__restrict__" "_Restrict")
-    IF(NOT DEFINED C_RESTRICT)
-      TRY_COMPILE(C_HAS_${KEYWORD}
+  foreach(KEYWORD "restrict" "__restrict" "__restrict__" "_Restrict")
+    if(NOT DEFINED C_RESTRICT)
+      try_compile(C_HAS_${KEYWORD}
         ${CMAKE_CURRENT_BINARY_DIR}
         ${CMAKE_CURRENT_BINARY_DIR}/CMakeTestCRestrict.c
         COMPILE_DEFINITIONS "-Drestrict=${KEYWORD}"
         )
-      IF(C_HAS_${KEYWORD})
-        SET(C_RESTRICT TRUE)
-        ADD_DEFINITIONS("-Drestrict=${KEYWORD}")
-        MESSAGE(STATUS "Restrict keyword found - ${KEYWORD}")
-      ENDIF(C_HAS_${KEYWORD})
-    ENDIF(NOT DEFINED C_RESTRICT)
-  ENDFOREACH(KEYWORD)
+      if(C_HAS_${KEYWORD})
+        set(C_RESTRICT TRUE)
+        add_definitions("-Drestrict=${KEYWORD}")
+        message(STATUS "Restrict keyword found - ${KEYWORD}")
+      endif(C_HAS_${KEYWORD})
+    endif(NOT DEFINED C_RESTRICT)
+  endforeach(KEYWORD)
 
-  IF(NOT DEFINED C_RESTRICT)
-    ADD_DEFINITIONS("-Drestrict=")
-    MESSAGE(STATUS "Restrict keyword - not found")
-  ENDIF(NOT DEFINED C_RESTRICT)
-ENDMACRO(FIND_RESTRICT_KEYWORD)
+  if(NOT DEFINED C_RESTRICT)
+    add_definitions("-Drestrict=")
+    message(STATUS "Restrict keyword - not found")
+  endif(NOT DEFINED C_RESTRICT)
+endmacro(find_restrict_keyword)

fuzz/CMakeLists.txt

+if(NOT CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+  message(FATAL_ERROR "You need to build with Clang for fuzzing to work")
+endif()
+
+add_library(aec_fuzz STATIC ${libaec_SRCS})
+add_executable(fuzz_target fuzz_target.cc)
+
+set(FUZZ_TARGET_LINK_FLAGS "-fsanitize=address")
+set(FUZZ_TARGET_COMPILE_FLAGS
+  "-g"
+  "-fsanitize=address"
+  "-fsanitize-coverage=trace-pc-guard,indirect-calls,edge")
+set_target_properties(fuzz_target aec_fuzz PROPERTIES
+  LINK_FLAGS ${FUZZ_TARGET_LINK_FLAGS}
+  COMPILE_OPTIONS "${FUZZ_TARGET_COMPILE_FLAGS}")
+
+target_link_libraries(fuzz_target aec_fuzz Fuzzer)

src/CMakeLists.txt

-SET(libaec_SRCS encode.c encode_accessors.c decode.c)
-ADD_LIBRARY(aec ${LIB_TYPE} ${libaec_SRCS})
-SET_TARGET_PROPERTIES(aec PROPERTIES
-  VERSION 0.0.6 SOVERSION 0
-  )
-ADD_LIBRARY(sz ${LIB_TYPE} sz_compat.c)
-SET_TARGET_PROPERTIES(sz PROPERTIES
-  VERSION 2.0.1 SOVERSION 2
-  )
+add_library(aec ${LIB_TYPE} ${libaec_SRCS})
+set_target_properties(aec PROPERTIES VERSION 0.0.6 SOVERSION 0)
+add_library(sz ${LIB_TYPE} sz_compat.c)
+set_target_properties(sz PROPERTIES VERSION 2.0.1 SOVERSION 2)
 
-TARGET_LINK_LIBRARIES(sz aec)
-IF(WIN32 AND BUILD_SHARED_LIBS)
-  SET_TARGET_PROPERTIES (aec PROPERTIES DEFINE_SYMBOL "BUILDING_LIBAEC")
-  SET_TARGET_PROPERTIES (sz PROPERTIES DEFINE_SYMBOL "BUILDING_LIBAEC")
-  SET_TARGET_PROPERTIES(sz PROPERTIES OUTPUT_NAME "szip")
-ENDIF(WIN32 AND BUILD_SHARED_LIBS)
+target_link_libraries(sz aec)
+if(WIN32 AND BUILD_SHARED_LIBS)
+  set_target_properties (aec PROPERTIES DEFINE_SYMBOL "BUILDING_LIBAEC")
+  set_target_properties (sz PROPERTIES DEFINE_SYMBOL "BUILDING_LIBAEC")
+  set_target_properties(sz PROPERTIES OUTPUT_NAME "szip")
+endif(WIN32 AND BUILD_SHARED_LIBS)
 
-ADD_EXECUTABLE(aec_client aec.c)
-SET_TARGET_PROPERTIES(aec_client PROPERTIES OUTPUT_NAME "aec")
-TARGET_LINK_LIBRARIES(aec_client aec)
+add_executable(aec_client aec.c)
+set_target_properties(aec_client PROPERTIES OUTPUT_NAME "aec")
+target_link_libraries(aec_client aec)
 
-IF(UNIX)
-  ADD_EXECUTABLE(utime EXCLUDE_FROM_ALL utime.c)
-  ADD_CUSTOM_TARGET(bench
+if(UNIX)
+  add_executable(utime EXCLUDE_FROM_ALL utime.c)
+  add_custom_target(bench
     COMMAND ${CMAKE_SOURCE_DIR}/src/benc.sh ${CMAKE_SOURCE_DIR}/data/typical.rz
     COMMAND ${CMAKE_SOURCE_DIR}/src/bdec.sh
-    DEPENDS aec_client utime
-    )
-ENDIF(UNIX)
+    DEPENDS aec_client utime)
+endif(UNIX)
 
-INCLUDE(GNUInstallDirs)
-IF(WIN32)
-  INSTALL(TARGETS aec sz
+include(GNUInstallDirs)
+if(WIN32)
+  install(TARGETS aec sz
     RUNTIME
     DESTINATION bin
     ARCHIVE
     DESTINATION lib
-    COMPONENT libraries
-    )
-ELSE(WIN32)
-  INSTALL(TARGETS aec sz
+    COMPONENT libraries)
+else(WIN32)
+  install(TARGETS aec sz
     LIBRARY
     DESTINATION ${CMAKE_INSTALL_LIBDIR}
     ARCHIVE
     DESTINATION ${CMAKE_INSTALL_LIBDIR}
-    COMPONENT libraries
-    )
-ENDIF(WIN32)
-INSTALL(FILES libaec.h szlib.h
+    COMPONENT libraries)
+endif(WIN32)
+install(FILES libaec.h szlib.h
   DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
-  COMPONENT headers
-  )
-INSTALL(TARGETS aec_client
+  COMPONENT headers)
+install(TARGETS aec_client
   RUNTIME
   DESTINATION ${CMAKE_INSTALL_BINDIR}
-  COMPONENT applications
-  )
+  COMPONENT applications)
 
-SET(CPACK_COMPONENTS_ALL applications libraries headers)
+set(CPACK_COMPONENTS_ALL applications libraries headers)

tests/CMakeLists.txt

-ADD_LIBRARY(check_aec STATIC check_aec.c)
+add_library(check_aec STATIC check_aec.c)
 
-ADD_EXECUTABLE(check_code_options check_code_options.c)
-TARGET_LINK_LIBRARIES(check_code_options check_aec aec)
-ADD_TEST(NAME check_code_options COMMAND check_code_options)
-ADD_EXECUTABLE(check_buffer_sizes check_buffer_sizes.c)
-TARGET_LINK_LIBRARIES(check_buffer_sizes check_aec aec)
-ADD_TEST(NAME check_buffer_sizes COMMAND check_buffer_sizes)
-ADD_EXECUTABLE(check_long_fs check_long_fs.c)
-TARGET_LINK_LIBRARIES(check_long_fs check_aec aec)
-ADD_TEST(NAME check_long_fs COMMAND check_long_fs)
-ADD_EXECUTABLE(check_szcomp check_szcomp.c)
-TARGET_LINK_LIBRARIES(check_szcomp check_aec sz)
-ADD_TEST(NAME check_szcomp
-  COMMAND check_szcomp ${CMAKE_CURRENT_SOURCE_DIR}/../data/121B2TestData/ExtendedParameters/sar32bit.dat)
+add_executable(check_code_options check_code_options.c)
+target_link_libraries(check_code_options check_aec aec)
+add_test(NAME check_code_options COMMAND check_code_options)
+add_executable(check_buffer_sizes check_buffer_sizes.c)
+target_link_libraries(check_buffer_sizes check_aec aec)
+add_test(NAME check_buffer_sizes COMMAND check_buffer_sizes)
+add_executable(check_long_fs check_long_fs.c)
+target_link_libraries(check_long_fs check_aec aec)
+add_test(NAME check_long_fs COMMAND check_long_fs)
+add_executable(check_szcomp check_szcomp.c)
+target_link_libraries(check_szcomp check_aec sz)
+add_test(NAME check_szcomp
+  COMMAND check_szcomp ${PROJECT_SOURCE_DIR}/data/121B2TestData/ExtendedParameters/sar32bit.dat)
 
-IF(UNIX)
-  ADD_TEST(
+if(UNIX)
+  add_test(
     NAME sampledata.sh
     COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/sampledata.sh ${CMAKE_CURRENT_SOURCE_DIR}
-    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
-    )
-ENDIF(UNIX)
+    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+endif(UNIX)