From b8aff90997116a84350018f88f1eabdaa368d11b Mon Sep 17 00:00:00 2001
From: Jay Berkenbilt <ejb@ql.org>
Date: Sat, 5 Mar 2022 08:24:51 -0500
Subject: Add cmake configuration files

---
 fuzz/CMakeLists.txt | 178 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 178 insertions(+)
 create mode 100644 fuzz/CMakeLists.txt

(limited to 'fuzz/CMakeLists.txt')

diff --git a/fuzz/CMakeLists.txt b/fuzz/CMakeLists.txt
new file mode 100644
index 00000000..04743005
--- /dev/null
+++ b/fuzz/CMakeLists.txt
@@ -0,0 +1,178 @@
+# This directory contains support for Google's oss-fuzz project. See
+# https://github.com/google/oss-fuzz/tree/master/projects/qpdf
+
+set(FUZZERS
+  qpdf_fuzzer
+  ascii85_fuzzer
+  dct_fuzzer
+  flate_fuzzer
+  hex_fuzzer
+  lzw_fuzzer
+  pngpredictor_fuzzer
+  runlength_fuzzer
+  tiffpredictor_fuzzer)
+
+# The oss-fuzz project provides LIB_FUZZING_ENGINE and OUT environment
+# variables. For local testing, provide values if not set.
+set(LIB_FUZZING_ENGINE $ENV{LIB_FUZZING_ENGINE})
+if(NOT LIB_FUZZING_ENGINE)
+  # When running from oss-fuzz, LIB_FUZZING_ENGINE points to a
+  # static library that contains main.
+  add_library(standalone_fuzzer STATIC standalone_fuzz_target_runner.cc)
+  target_include_directories(
+    standalone_fuzzer PRIVATE ${qpdf_SOURCE_DIR}/include)
+  set(LIB_FUZZING_ENGINE standalone_fuzzer)
+endif()
+set(FUZZ_OUT $ENV{OUT})
+if(NOT FUZZ_OUT)
+  set(FUZZ_OUT ${CMAKE_CURRENT_BINARY_DIR}/fuzz-install)
+endif()
+
+if(OSS_FUZZ)
+  # We need to link jpeg and zlib statically for oss-fuzz. Construct
+  # our own object library without the external dependencies and add
+  # what we need.
+  add_library(libqpdf_fuzz STATIC $<TARGET_OBJECTS:libqpdf_object>)
+  target_link_libraries(libqpdf_fuzz INTERFACE libjpeg.a libz.a)
+  target_include_directories(libqpdf_fuzz
+    PUBLIC
+    ${JPEG_INCLUDE}
+    ${qpdf_SOURCE_DIR}/include
+    ${qpdf_SOURCE_DIR}/libqpdf)
+else()
+  add_library(libqpdf_fuzz ALIAS libqpdf_object)
+endif()
+
+foreach(PROG ${FUZZERS})
+  add_executable(${PROG} ${PROG}.cc)
+  target_link_libraries(${PROG} ${LIB_FUZZING_ENGINE})
+  target_link_libraries(${PROG} libqpdf_fuzz)
+endforeach()
+
+# Files from the test suite that are good for seeding the fuzzer.
+# Update count for qpdf in @fuzzers qtest/fuzz.test if you change this list.
+set(CORPUS_FROM_TEST
+  stream-data.pdf
+  lin5.pdf
+  field-types.pdf
+  image-streams-small.pdf
+  need-appearances.pdf
+  outlines-with-actions.pdf
+  outlines-with-old-root-dests.pdf
+  page-labels-and-outlines.pdf
+  page-labels-num-tree.pdf
+  dr-with-indirect-item.pdf
+  fuzz-16214.pdf
+  issue-99b.pdf
+  issue-99.pdf
+  issue-100.pdf
+  issue-101.pdf
+  issue-106.pdf
+  issue-117.pdf
+  issue-119.pdf
+  issue-120.pdf
+  issue-141a.pdf
+  issue-141b.pdf
+  issue-143.pdf
+  issue-146.pdf
+  issue-147.pdf
+  issue-148.pdf
+  issue-149.pdf
+  issue-150.pdf
+  issue-202.pdf
+  issue-263.pdf
+  issue-335a.pdf
+  issue-335b.pdf)
+
+# Any file that qpdf_fuzzer should be tested with can be named
+# something.fuzz and dropped into qpdf_extra. Update count for qpdf in
+# @fuzzers qtest/fuzz.test if you change this list.
+set(CORPUS_OTHER
+  15316.fuzz
+  15387.fuzz
+  15390.fuzz
+  15442.fuzz
+  15445.fuzz
+  15983.fuzz
+  16172.fuzz
+  16301.fuzz
+  16953.fuzz
+  18241.fuzz
+  18247.fuzz
+  23172.fuzz
+  23599.fuzz
+  23642.fuzz
+  23642-mod.fuzz
+  26761.fuzz
+  26994.fuzz
+  27393.fuzz
+  28262.fuzz
+  30507.fuzz
+  37740.fuzz)
+
+set(CORPUS_DIR ${CMAKE_CURRENT_BINARY_DIR}/qpdf_corpus)
+file(MAKE_DIRECTORY ${CORPUS_DIR})
+function(copy_fuzz FROM)
+  file(SHA1 ${FROM} SHA)
+  set(OUT ${CORPUS_DIR}/${SHA})
+  add_custom_command(
+    OUTPUT ${OUT}
+    COMMAND ${COPY_COMMAND} $<SHELL_PATH:${FROM}> $<SHELL_PATH:${OUT}>)
+  set(CORPUS_FILE ${OUT} PARENT_SCOPE)
+endfunction()
+
+list(APPEND CORPUS_FILES)
+foreach(F ${CORPUS_FROM_TEST})
+  copy_fuzz(${qpdf_SOURCE_DIR}/qpdf/qtest/qpdf/${F})
+  list(APPEND CORPUS_FILES ${CORPUS_FILE})
+endforeach()
+foreach(F ${CORPUS_OTHER})
+  copy_fuzz(${CMAKE_CURRENT_SOURCE_DIR}/qpdf_extra/${F})
+  list(APPEND CORPUS_FILES ${CORPUS_FILE})
+endforeach()
+add_custom_target(qpdf_corpus ALL
+  DEPENDS ${CORPUS_FILES})
+
+add_test(
+  NAME fuzz
+  COMMAND ${RUN_QTEST}
+  --env QPDF_FUZZ_CORPUS=${CORPUS_DIR}
+  --top ${qpdf_SOURCE_DIR}
+  --bin $<TARGET_FILE_DIR:qpdf_fuzzer>
+  --bin $<TARGET_FILE_DIR:qpdf>
+  --code ${qpdf_SOURCE_DIR}/fuzz
+  --color ${QTEST_COLOR}
+  --show-on-failure ${SHOW_FAILED_TEST_OUTPUT})
+
+if(OSS_FUZZ)
+  list(APPEND SEED_CORPUS_ZIPS)
+  foreach(F ${FUZZERS})
+    if(F STREQUAL qpdf_fuzzer)
+      set(SEED_DIR ${CORPUS_DIR})
+    else()
+      set(SEED_DIR ${CMAKE_CURRENT_SOURCE_DIR}/${F}_seed_corpus)
+    endif()
+    set(SEED_ZIP ${CMAKE_CURRENT_BINARY_DIR}/${F}_seed_corpus.zip)
+    add_custom_command(OUTPUT ${SEED_ZIP}
+      COMMAND zip -q -r ${SEED_ZIP} .
+      WORKING_DIRECTORY ${SEED_DIR})
+    list(APPEND SEED_CORPUS_ZIPS ${SEED_ZIP})
+  endforeach()
+  add_custom_target(seed_corpus_zips ALL DEPENDS ${SEED_CORPUS_ZIPS})
+  add_dependencies(seed_corpus_zips qpdf_corpus)
+  add_custom_target(fuzzers)
+  add_dependencies(fuzzers ${FUZZERS} seed_corpus_zips)
+  install(
+    TARGETS ${FUZZERS}
+    DESTINATION ${FUZZ_OUT}
+    EXCLUDE_FROM_ALL
+    COMPONENT fuzz)
+  install(
+    FILES
+    ${CMAKE_CURRENT_SOURCE_DIR}/pdf.dict
+    ${CMAKE_CURRENT_SOURCE_DIR}/qpdf_fuzzer.options
+    ${SEED_CORPUS_ZIPS}
+    DESTINATION ${FUZZ_OUT}
+    EXCLUDE_FROM_ALL
+    COMPONENT fuzz)
+endif()
-- 
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