Respect PINENTRY_USER_DATA=USE_CURSES=1

[jgresty]

pinentry-mac falls back to pinentry-curses if the env var PINENTRY_USER_DATA=USE_CURSES=1 is set, however pinentry-touchid does not respect this and will always prompt for touchid.

This is needed when pinentry is requested over a remote connection where the user has no physical access to the system, ie ssh sessions.

[jorgelbg]

Oh, interesting I hadn't considered this use case TBH 😅.

[Myridium]

Is this option unique to pinentry-mac or is it something which is respected by other pinentry programs too?

[jgresty]

PINENTRY_USER_DATA is used by gpg-agent to pass data to the underlying pinentry process, however USE_CURSES is unique to macos as pinentry normally uses the DISPLAY variable on other platforms.

https://github.com/GPGTools/pinentry/blob/b7195e9d4c098ea315e18ade3b4dab210492fadf/macosx/main.m#L67