int ask_password_agent_open(void) {
int r;
if (agent_pid > 0)
return 0;
/* We check STDIN here, not STDOUT, since this is about input,
* not output */
if (!isatty(STDIN_FILENO))
return 0;
r = fork_agent(&agent_pid,
NULL, 0,
SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH,
SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, "--watch", NULL);
if (r < 0)
return log_error_errno(r, "Failed to fork TTY ask password agent: %m");
return 1;
}
int polkit_agent_open(void) {
int r;
int pipe_fd[2];
char notify_fd[DECIMAL_STR_MAX(int) + 1];
if (agent_pid > 0)
return 0;
/* We check STDIN here, not STDOUT, since this is about input,
* not output */
if (!isatty(STDIN_FILENO))
return 0;
if (pipe2(pipe_fd, 0) < 0)
return -errno;
xsprintf(notify_fd, "%i", pipe_fd[1]);
r = fork_agent(&agent_pid,
&pipe_fd[1], 1,
POLKIT_AGENT_BINARY_PATH,
POLKIT_AGENT_BINARY_PATH, "--notify-fd", notify_fd, "--fallback", NULL);
/* Close the writing side, because that's the one for the agent */
safe_close(pipe_fd[1]);
if (r < 0)
log_error_errno(r, "Failed to fork TTY ask password agent: %m");
else
/* Wait until the agent closes the fd */
fd_wait_for_event(pipe_fd[0], POLLHUP, USEC_INFINITY);
safe_close(pipe_fd[0]);
return r;
}
