commond: Introduce FD2NUM to express conversion to number of fds.
* common/sysutils.h (FD2NUM): New. * agent/call-pinentry.c (watch_sock): Use FD2NUM. * agent/gpg-agent.c (handle_connections): Likewise. * dirmngr/dirmngr.c (handle_connections): Likewise. * dirmngr/http.c (connect_with_timeout): Likewise. * kbx/keyboxd.c (handle_connections): Likewise. * scd/scdaemon.c (handle_connections): Likewise. * tpm2d/tpm2daemon.c (handle_connections): Likewise.
- GnuPG-bug-id: T6598
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>