Function read_stdin_pass_with_exit_code

common/hsm_encryption.c:115–155

}

char *read_stdin_pass_with_exit_code(char **reason, int *exit_code)
{
	struct termios current_term, temp_term;
	char *passwd = NULL;
	size_t passwd_size = 0;

	if (isatty(fileno(stdin))) {
		/* Set a temporary term, same as current but with ECHO disabled. */
		if (tcgetattr(fileno(stdin), &current_term) != 0) {
			*reason = "Could not get current terminal options.";
			*exit_code = EXITCODE_HSM_PASSWORD_INPUT_ERR;
			return NULL;
		}
		temp_term = current_term;
		temp_term.c_lflag &= ~ECHO;
		if (tcsetattr(fileno(stdin), TCSANOW, &temp_term) != 0) {
			*reason = "Could not disable pass echoing.";
			*exit_code = EXITCODE_HSM_PASSWORD_INPUT_ERR;
			return NULL;
		}

		if (!getline_stdin_pass(&passwd, &passwd_size)) {
			*reason = "Could not read pass from stdin.";
			*exit_code = EXITCODE_HSM_PASSWORD_INPUT_ERR;
			return NULL;
		}

		/* Restore the original terminal */
		if (tcsetattr(fileno(stdin), TCSANOW, &current_term) != 0) {
			*reason = "Could not restore terminal options.";
			free(passwd);
			*exit_code = EXITCODE_HSM_PASSWORD_INPUT_ERR;
			return NULL;
		}
	} else if (!getline_stdin_pass(&passwd, &passwd_size)) {
		*reason = "Could not read pass from stdin.";
		*exit_code = EXITCODE_HSM_PASSWORD_INPUT_ERR;
		return NULL;
	}
	return passwd;
}