Fix CVE-2023-27390

"Self" message are not supported, but this was not checked. This
triggered the error "Something is wrong", and then caused a buffer
overflow.

Bug:https://github.com/ArthurSonzogni/Diagon/issues/65

cmake/diagon_fuzzer.cmake

@@ -2,7 +2,7 @@ set(CMAKE_C_COMPILER clang)
 set(CMAKE_CXX_COMPILER clang++)
 
 add_executable(fuzzer src/fuzzer.cpp)
-target_compile_options(fuzzer PRIVATE -fsanitize=fuzzer,address)
-target_link_libraries(fuzzer PRIVATE -fsanitize=fuzzer,address)
+target_compile_options(fuzzer PRIVATE -fsanitize=fuzzer)
+target_link_libraries(fuzzer PRIVATE -fsanitize=fuzzer)
 target_link_libraries(fuzzer PRIVATE diagon_lib)
 target_set_common(fuzzer)

cmake/diagon_test.cmake

@@ -1,3 +1,42 @@
 add_executable(input_output_test src/input_output_test.cpp)
 target_link_libraries(input_output_test diagon_lib)
 target_set_common(input_output_test)
+
+option(DIAGON_ASAN "Set to ON to enable address sanitizer" OFF)
+option(DIAGON_LSAN "Set to ON to enable leak sanitizer" OFF)
+option(DIAGON_MSAN "Set to ON to enable memory sanitizer" OFF)
+option(DIAGON_TSAN "Set to ON to enable thread sanitizer" OFF)
+option(DIAGON_UBSAN "Set to ON to enable undefined behavior sanitizer" OFF)
+if (NOT CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+  return()
+endif()
+
+# Add ASAN
+if (DIAGON_ASAN)
+  add_compile_options(-fsanitize=address)
+  add_link_options(-fsanitize=address)
+endif()
+
+# Add LSAN
+if (DIAGON_LSAN)
+  add_compile_options(-fsanitize=leak)
+  add_link_options(-fsanitize=leak)
+endif()
+
+# Add MSAN
+if (DIAGON_MSAN)
+  add_compile_options(-fsanitize=memory)
+  add_link_options(-fsanitize=memory)
+endif()
+
+# Add TSAN
+if (DIAGON_TSAN)
+  add_compile_options(-fsanitize=thread)
+  add_link_options(-fsanitize=thread)
+endif()
+
+# Add UBSAN
+if (DIAGON_UBSAN)
+  add_compile_options(-fsanitize=undefined)
+  add_link_options(-fsanitize=undefined)
+endif()