* src/gpgme.h.in (GPGME_ENCRYPT_FILE): New encryption flag.
* src/engine-gpg.c (gpg_encrypt, gpg_encrypt_sign): Check for
incompatible flags. Pass filename instead of fd to gpg when new flag is
set.
* src/engine-gpgsm.c (gpgsm_encrypt): Return error if new flag is set.
* src/engine-uiserver.c (uiserver_encrypt): Ditto.
* tests/run-encrypt.c (show_usage): New option --direct-file-io.
(main): Parse new option. Make gpg read the input file itself if the
option is given.
--
With this change the gpgme_op_encrypt* and gpgme_op_encrypt_sign*
functions gain the possibility to make gpg read the data to (sign and)
encrypt directly from a file instead of from an input FD to which it is
written by gpgme.
GnuPG-bug-id: 6550