RPP_REQUIRE_TTY
if (flags & RPP_REQUIRE_TTY) {
rpp_flag |= interactive ? RPP_REQUIRE_TTY : RPP_STDIN;
RPP_REQUIRE_TTY) == NULL)
RPP_REQUIRE_TTY) == NULL)
RPP_REQUIRE_TTY);
passbuf, sizeof(passbuf), RPP_REQUIRE_TTY) == NULL)
if (readpassphrase(prompt, pw, pwlen, RPP_REQUIRE_TTY) == NULL)
rppflags |= RPP_REQUIRE_TTY;