libhelper: fixup memory leak

CMakeLists.txt

@@ -20,8 +20,9 @@ project(pmt VERSION 1.0.0)
 
 # Set compiler flags
 add_compile_options(-Wall -Werror)
-if(CMAKE_BUILD_TYPE STREQUAL "Debug")
+if(${CMAKE_BUILD_TYPE} STREQUAL Debug)
 	add_compile_options(-gdwarf-5 -fsanitize=address -fstack-protector)
+	add_link_options(-fsanitize=address)
 endif()
 
 # Add pmt's CMake module(s)
@@ -29,7 +30,7 @@ include(cmake/generate_headers.cmake)
 
 # Generate header(s)
 get_property(FLAGS DIRECTORY PROPERTY COMPILE_OPTIONS)
-generateBuildInfo(${FLAGS})
+generateBuildInfo("${FLAGS}")
 
 # Add include directories
 include_directories(include srclib/libhelper/include srclib/libpartition_map/include)

srclib/libhelper/CMakeLists.txt

@@ -29,7 +29,7 @@ add_executable(libhelper_test tests/test.cpp)
 
 # Set linker flags
 target_link_libraries(libhelper_test PRIVATE helper_shared)
-target_link_options(libhelper_test PRIVATE "LINKER:-rpath,/data/data/com.termux/files/usr/lib")
+target_link_options(libhelper_test PRIVATE "LINKER:-rpath,/data/data/com.termux/files/usr/lib" "LINKER:-rpath,/data/local")
 target_link_options(helper_shared PRIVATE "LINKER:-rpath,/data/data/com.termux/files/usr/lib")
 
 # Set appropriate output names

srclib/libhelper/include/libhelper/lib.hpp

@@ -33,6 +33,7 @@ enum LogLevels {
 };
 
 constexpr mode_t DEFAULT_FILE_PERMS				= 0644;
+constexpr mode_t DEFAULT_EXTENDED_FILE_PERMS	= 0755;
 constexpr mode_t DEFAULT_DIR_PERMS				= 0755;
 constexpr int    YES = 1;
 constexpr int    NO  = 0;

srclib/libhelper/src/Classes.cpp

@@ -23,6 +23,15 @@
 #include <stdarg.h>
 #include <libhelper/lib.hpp>
 
+static void __create_log_file(const char* file)
+{
+	int fd = open(file, O_WRONLY | O_TRUNC, DEFAULT_EXTENDED_FILE_PERMS);
+	if (fd == -1) {
+		fd = open(file, O_WRONLY | O_CREAT, DEFAULT_EXTENDED_FILE_PERMS);
+		if (fd != -1) close(fd);
+	} else if (fd != -1) close(fd);
+}
+
 namespace Helper {
 
 Error::Error(const char* format, ...)
@@ -56,7 +65,7 @@ Logger::~Logger()
 	       currentTime().data(),
 	       _oss.str().data());
 
-	if (!isExists(_logFile)) createFile(_logFile);
+	if (!isExists(_logFile)) __create_log_file(_logFile);
 
 	FILE* fp = fopen(_logFile, "a");
 	if (fp != NULL) {

srclib/libhelper/src/FileUtil.cpp

@@ -246,6 +246,7 @@ bool eraseDirectoryRecursive(const std::string_view directory)
 std::string readSymlink(const std::string_view entry)
 {
 	LOGN(HELPER, INFO) << __func__ << "(): read symlink request: " << entry << std::endl;
+
 	char target[PATH_MAX];
 	ssize_t len = readlink(entry.data(), target, (sizeof(target) - 1));
 	if (len == -1) {

srclib/libhelper/src/Sha256.cpp

@@ -27,20 +27,22 @@ namespace Helper {
 
 std::optional<std::string> sha256Of(const std::string_view path)
 {
-	LOGN(HELPER, INFO) << __func__ << "(): get sha256 of \"" << path << "\" request." << std::endl;
-	if (!fileIsExists(path)) {
-		throw Error("Is not exists or not file: %s", path.data());
+	LOGN(HELPER, INFO) << __func__ << "(): get sha256 of \"" << path << "\" request. Getting full path (if input is link and exists)." << std::endl;
+	std::string fp = (isLink(path)) ? readSymlink(path) : std::string(path);
+
+	if (!fileIsExists(fp)) {
+		throw Error("Is not exists or not file: %s", fp.data());
 		return std::nullopt;
 	}
 
-	std::ifstream file(path, std::ios::binary);
+	std::ifstream file(fp, std::ios::binary);
 	if (!file) {
-		throw Error("Cannot open file: %s", path.data());
+		throw Error("Cannot open file: %s", fp.data());
 		return std::nullopt;
 	}
 
 	std::vector<unsigned char> hash(picosha2::k_digest_size);
-	picosha2::hash256(path, hash.begin(), hash.end());
+	picosha2::hash256(fp, hash.begin(), hash.end());
 	LOGN(HELPER, INFO) << __func__ << "(): get sha256 of \"" << path << "\" successfull." << std::endl;
 	return picosha2::bytes_to_hex_string(hash.begin(), hash.end());
 }

srclib/libhelper/src/Utilities.cpp

@@ -123,18 +123,21 @@ std::string currentTime()
 std::string runCommandWithOutput(const std::string_view cmd)
 {
 	LOGN(HELPER, INFO) << __func__ << "(): run command and catch out request: " << cmd << std::endl;
-	std::unique_ptr<FILE, decltype(&pclose)> pipe(popen(cmd.data(), "r"), pclose);
+
+	FILE* pipe = popen(cmd.data(), "r");
 	if (!pipe) {
 		throw Error("Cannot run command: %s", cmd.data());
 		return {};
 	}
 
-	std::string end;
+	std::unique_ptr<FILE, decltype(&pclose)> pipe_holder(pipe, pclose);
+
+	std::string output;
 	char buffer[1024];
 
-	while (fgets(buffer, sizeof(buffer), pipe.get()) != nullptr) end += buffer;
+	while (fgets(buffer, sizeof(buffer), pipe_holder.get()) != nullptr) output += buffer;
 
-	return end;
+	return output;
 }
 
 std::string pathJoin(std::string base, std::string relative)

srclib/libpartition_map/CMakeLists.txt

@@ -31,7 +31,7 @@ set_target_properties(partition_map_shared PROPERTIES OUTPUT_NAME "partition_map
 set_target_properties(partition_map_static PROPERTIES OUTPUT_NAME "partition_map")
 
 # Set linker flags
-target_link_options(libpartition_map_test PRIVATE "LINKER:-rpath,/data/data/com.termux/files/usr/lib")
+target_link_options(libpartition_map_test PRIVATE "LINKER:-rpath,/data/data/com.termux/files/usr/lib" "LINKER:-rpath,/data/local")
 target_link_options(partition_map_shared PRIVATE "LINKER:-rpath,/data/data/com.termux/files/usr/lib")
 target_link_libraries(libpartition_map_test PRIVATE partition_map_shared PRIVATE helper_shared)
 target_link_libraries(partition_map_shared PRIVATE helper_shared)