mirror of
https://github.com/Kitware/CMake.git
synced 2026-08-13 17:07:57 +00:00
b8b0bf1f27
Modify cmListFile[Parser] to use cmMakefile rather than cmMessenger as the interface for issuing messages. This is necessary to provide a context for diagnostic messages so that they can be controlled via the diagnostic state (which is not owned by cmMessenger). Note that we actually bypass the cmMakefile when issuing errors, as these cannot be disabled (so the diagnostic context doesn't matter), and we want the calling cmMakefile to still be able to issue its own errors, which would be suppressed if the cmMakefile has already issued an error.
81 lines
1.8 KiB
C++
81 lines
1.8 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
file LICENSE.rst or https://cmake.org/licensing for details. */
|
|
|
|
/*
|
|
* Fuzzer for CMake's list file parser (CMakeLists.txt full parsing)
|
|
*
|
|
* This fuzzer tests the complete parsing of CMake files including:
|
|
* - Command parsing
|
|
* - Argument handling
|
|
* - Bracket arguments
|
|
* - Comments
|
|
* - Line continuations
|
|
*/
|
|
|
|
#include <cstddef>
|
|
#include <cstdint>
|
|
#include <cstdio>
|
|
#include <string>
|
|
|
|
#include <unistd.h>
|
|
|
|
#include "cmListFileCache.h"
|
|
#include "cmSystemTools.h"
|
|
|
|
static constexpr size_t kMaxInputSize = 256 * 1024;
|
|
static std::string g_testDir;
|
|
|
|
extern "C" int LLVMFuzzerInitialize(int* argc, char*** argv)
|
|
{
|
|
(void)argc;
|
|
(void)argv;
|
|
|
|
char tmpl[] = "/tmp/cmake_fuzz_listfile_XXXXXX";
|
|
char* dir = mkdtemp(tmpl);
|
|
if (dir) {
|
|
g_testDir = dir;
|
|
} else {
|
|
g_testDir = "/tmp/cmake_fuzz_listfile";
|
|
cmSystemTools::MakeDirectory(g_testDir);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
extern "C" int LLVMFuzzerTestOneInput(uint8_t const* data, size_t size)
|
|
{
|
|
if (size == 0 || size > kMaxInputSize) {
|
|
return 0;
|
|
}
|
|
|
|
// Write input to temp file
|
|
std::string testFile = g_testDir + "/CMakeLists.txt";
|
|
{
|
|
FILE* fp = fopen(testFile.c_str(), "wb");
|
|
if (!fp)
|
|
return 0;
|
|
fwrite(data, 1, size, fp);
|
|
fclose(fp);
|
|
}
|
|
|
|
// Parse the file
|
|
cmListFile listFile;
|
|
cmListFileBacktrace backtrace;
|
|
if (listFile.ParseFile(testFile.c_str(), nullptr, backtrace)) {
|
|
// Successfully parsed - examine results
|
|
for (auto const& func : listFile.Functions) {
|
|
(void)func.LowerCaseName();
|
|
(void)func.OriginalName();
|
|
for (auto const& arg : func.Arguments()) {
|
|
(void)arg.Value;
|
|
(void)arg.Delim;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Clean up
|
|
unlink(testFile.c_str());
|
|
|
|
return 0;
|
|
}
|