* sendto_kdc.c (MAX_PASS, dprint): New macros.

* sendto_kdc.c (MAX_PASS, dprint): New macros.
(krb5int_debug_fprint, merge_addrlists): New function.
(krb5int_debug_sendto_kdc): New variable.
(krb5_sendto_kdc): Use dprint.  Call krb5int_locate_kdc in two places, with
socket type selection done separately.
(debug_log_connect): Function deleted; use dprint instead.
(dperror): Use dprint.
(print_fdsets): Function deleted; use dprint instead.
(struct conn_state): Use struct instead of union so incoming and outgoing
buffer pointers can co-exist.  Add INITIALIZING state.
(state_strings): Add INITIALIZING.
(krb5int_sendto_udp, krb5int_sendto_tcp): Functions integrated into
krb5int_sendto.
(call_select): Use dprint.
(setup_connection): New function, handles data structure initialization.
(start_connection): Renamed from start_tcp_connection.  Don't do data structure
initialization, just start connection, and transmit UDP datagrams.  Use dprint.
(maybe_send): Create socket for "INITIALIZING" connections; transmit datagrams.
(kill_conn): New function split out from service_tcp_fd.
(SSF_READ, SSF_WRITE, SSF_EXCEPTION): New macros.
(service_tcp_fd): Accept a flag word rather than separate int arguments for
read, write, exception.  Use dprint.
(service_udp_fd): New function.
(service_fd): New function, calls one of the above two.
(service_fds): Call it.  Use a flag word instead of separate r/w/x values.

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@14742 dc483132-0cff-0310-8789-dd5450dbe970