140 lines
5.5 KiB
C++
140 lines
5.5 KiB
C++
//===- llvm/unittest/BinaryFormat/TestFileMagic.cpp - File magic tests ----===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/SmallString.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/BinaryFormat/Magic.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Path.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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namespace fs = llvm::sys::fs;
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#define ASSERT_NO_ERROR(x) \
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if (std::error_code ASSERT_NO_ERROR_ec = x) { \
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SmallString<128> MessageStorage; \
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raw_svector_ostream Message(MessageStorage); \
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Message << #x ": did not return errc::success.\n" \
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<< "error number: " << ASSERT_NO_ERROR_ec.value() << "\n" \
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<< "error message: " << ASSERT_NO_ERROR_ec.message() << "\n"; \
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GTEST_FATAL_FAILURE_(MessageStorage.c_str()); \
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} else { \
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}
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class MagicTest : public testing::Test {
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protected:
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/// Unique temporary directory in which all created filesystem entities must
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/// be placed. It is removed at the end of each test (must be empty).
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SmallString<128> TestDirectory;
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void SetUp() override {
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ASSERT_NO_ERROR(
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fs::createUniqueDirectory("file-system-test", TestDirectory));
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// We don't care about this specific file.
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errs() << "Test Directory: " << TestDirectory << '\n';
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errs().flush();
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}
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void TearDown() override { ASSERT_NO_ERROR(fs::remove(TestDirectory.str())); }
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};
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const char archive[] = "!<arch>\x0A";
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const char bitcode[] = "\xde\xc0\x17\x0b";
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const char coff_object[] = "\x00\x00......";
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const char coff_bigobj[] =
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"\x00\x00\xff\xff\x00\x02......"
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"\xc7\xa1\xba\xd1\xee\xba\xa9\x4b\xaf\x20\xfa\xf6\x6a\xa4\xdc\xb8";
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const char coff_import_library[] = "\x00\x00\xff\xff....";
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const char elf_relocatable[] = {0x7f, 'E', 'L', 'F', 1, 2, 1, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 1};
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const char macho_universal_binary[] = "\xca\xfe\xba\xbe...\x00";
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const char macho_object[] =
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"\xfe\xed\xfa\xce........\x00\x00\x00\x01............";
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const char macho_executable[] =
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"\xfe\xed\xfa\xce........\x00\x00\x00\x02............";
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const char macho_fixed_virtual_memory_shared_lib[] =
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"\xfe\xed\xfa\xce........\x00\x00\x00\x03............";
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const char macho_core[] =
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"\xfe\xed\xfa\xce........\x00\x00\x00\x04............";
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const char macho_preload_executable[] =
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"\xfe\xed\xfa\xce........\x00\x00\x00\x05............";
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const char macho_dynamically_linked_shared_lib[] =
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"\xfe\xed\xfa\xce........\x00\x00\x00\x06............";
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const char macho_dynamic_linker[] =
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"\xfe\xed\xfa\xce........\x00\x00\x00\x07............";
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const char macho_bundle[] =
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"\xfe\xed\xfa\xce........\x00\x00\x00\x08............";
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const char macho_dsym_companion[] =
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"\xfe\xed\xfa\xce........\x00\x00\x00\x0a............";
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const char macho_kext_bundle[] =
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"\xfe\xed\xfa\xce........\x00\x00\x00\x0b............";
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const char windows_resource[] =
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"\x00\x00\x00\x00\x020\x00\x00\x00\xff\xff\x00\x00\xff\xff\x00\x00";
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const char macho_dynamically_linked_shared_lib_stub[] =
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"\xfe\xed\xfa\xce........\x00\x00\x00\x09............";
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const char ms_dos_stub_broken[] = "\x4d\x5a\x20\x20";
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const char pdb[] = "Microsoft C/C++ MSF 7.00\r\n\x1a"
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"DS\x00\x00\x00";
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const char tapi_file[] = "--- !tapi-tbd-v1\n";
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const char tapi_file_tbd_v1[] = "---\narchs: [";
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TEST_F(MagicTest, Magic) {
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struct type {
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const char *filename;
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const char *magic_str;
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size_t magic_str_len;
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file_magic magic;
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} types[] = {
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#define DEFINE(magic) {#magic, magic, sizeof(magic), file_magic::magic}
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DEFINE(archive),
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DEFINE(bitcode),
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DEFINE(coff_object),
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{"coff_bigobj", coff_bigobj, sizeof(coff_bigobj),
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file_magic::coff_object},
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DEFINE(coff_import_library),
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DEFINE(elf_relocatable),
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DEFINE(macho_universal_binary),
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DEFINE(macho_object),
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DEFINE(macho_executable),
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DEFINE(macho_fixed_virtual_memory_shared_lib),
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DEFINE(macho_core),
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DEFINE(macho_preload_executable),
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DEFINE(macho_dynamically_linked_shared_lib),
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DEFINE(macho_dynamic_linker),
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DEFINE(macho_bundle),
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DEFINE(macho_dynamically_linked_shared_lib_stub),
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DEFINE(macho_dsym_companion),
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DEFINE(macho_kext_bundle),
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DEFINE(windows_resource),
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DEFINE(pdb),
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{"ms_dos_stub_broken", ms_dos_stub_broken, sizeof(ms_dos_stub_broken),
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file_magic::unknown},
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DEFINE(tapi_file),
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{"tapi_file_tbd_v1", tapi_file_tbd_v1, sizeof(tapi_file_tbd_v1),
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file_magic::tapi_file},
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#undef DEFINE
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};
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// Create some files filled with magic.
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for (type *i = types, *e = types + (sizeof(types) / sizeof(type)); i != e;
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++i) {
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SmallString<128> file_pathname(TestDirectory);
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llvm::sys::path::append(file_pathname, i->filename);
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std::error_code EC;
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raw_fd_ostream file(file_pathname, EC, sys::fs::OF_None);
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ASSERT_FALSE(file.has_error());
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StringRef magic(i->magic_str, i->magic_str_len);
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file << magic;
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file.close();
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EXPECT_EQ(i->magic, identify_magic(magic));
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ASSERT_NO_ERROR(fs::remove(Twine(file_pathname)));
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}
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}
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