Exemplos de fs_fopen_attr em C++ (Cpp)

Exemplo n.º 1

Arquivo: lcl_sv.cpp Projeto: mmanley/Antares

static void
sv_rewind(struct irs_sv *sv)
{
	struct service_private *service
		= (struct service_private *)sv->private_data;

	if (service->file) {
		if (fseek(service->file, 0L, SEEK_SET) == 0)
			return;
		fclose(service->file);
		service->file = NULL;
	}

	char path[PATH_MAX];
	if (find_directory(B_COMMON_DATA_DIRECTORY, -1, false, path, sizeof(path))
			== B_OK) {
		strlcat(path, "/network/services", sizeof(path));

		if ((service->file = fopen(path, "r")) != NULL) {
			if (fcntl(fileno(service->file), F_SETFD, FD_CLOEXEC) == 0)
				return;

			fclose(service->file);
			service->file = NULL;
		}
	}

	// opening the standard file has file has failed, use the attribute

	// find our library image
	image_info info;
	if (find_own_image(&info) != B_OK)
		return;

	// open the library
	int libraryFD = open(info.name, O_RDONLY);
	if (libraryFD < 0)
		return;

	// open the attribute
	int attrFD = fs_fopen_attr(libraryFD, "services", B_STRING_TYPE, O_RDONLY);
	close(libraryFD);
	if (attrFD < 0)
		return;

	// attach it to a FILE
	service->file = fdopen(attrFD, "r");
	if (service->file == NULL) {
		close(attrFD);
		return;
	}

	if (fcntl(fileno(service->file), F_SETFD, FD_CLOEXEC) == 0)
		return;

	fclose(service->file);
	service->file = NULL;
}

Exemplo n.º 2

Arquivo: AboutSystem.cpp Projeto: mariuz/haiku

void
AboutView::_AddCopyrightsFromAttribute()
{
#ifdef __HAIKU__
	// open the app executable file
	char appPath[B_PATH_NAME_LENGTH];
	int appFD;
	if (BPrivate::get_app_path(appPath) != B_OK
		|| (appFD = open(appPath, O_RDONLY)) < 0) {
		return;
	}

	// open the attribute
	int attrFD = fs_fopen_attr(appFD, "COPYRIGHTS", B_STRING_TYPE, O_RDONLY);
	close(appFD);
	if (attrFD < 0)
		return;

	// attach it to a FILE
	FILE* attrFile = fdopen(attrFD, "r");
	if (attrFile == NULL) {
		close(attrFD);
		return;
	}
	CObjectDeleter<FILE, int> _(attrFile, fclose);

	// read and parse the copyrights
	BMessage package;
	BString fieldName;
	BString fieldValue;
	char lineBuffer[LINE_MAX];
	while (char* line = fgets(lineBuffer, sizeof(lineBuffer), attrFile)) {
		// chop off line break
		size_t lineLen = strlen(line);
		if (lineLen > 0 && line[lineLen - 1] == '\n')
			line[--lineLen] = '\0';

		// flush previous field, if a new field begins, otherwise append
		if (lineLen == 0 || !isspace(line[0])) {
			// new field -- flush the previous one
			if (fieldName.Length() > 0) {
				fieldValue = trim_string(fieldValue.String(),
					fieldValue.Length());
				package.AddString(fieldName.String(), fieldValue);
				fieldName = "";
			}
		} else if (fieldName.Length() > 0) {
			// append to current field
			fieldValue += line;
			continue;
		} else {
			// bogus line -- ignore
			continue;
		}

		if (lineLen == 0)
			continue;

		// parse new field
		char* colon = strchr(line, ':');
		if (colon == NULL) {
			// bogus line -- ignore
			continue;
		}

		fieldName.SetTo(line, colon - line);
		fieldName = trim_string(line, colon - line);
		if (fieldName.Length() == 0) {
			// invalid field name
			continue;
		}

		fieldValue = colon + 1;

		if (fieldName == "Package") {
			// flush the current package
			_AddPackageCredit(PackageCredit(package));
			package.MakeEmpty();
		}
	}

	// flush current package
	_AddPackageCredit(PackageCredit(package));
#endif
}