static int smtpd_proxy_save_rec_fprintf(VSTREAM *stream, int rec_type,
const char *fmt,...)
{
const char *myname = "smtpd_proxy_save_rec_fprintf";
va_list ap;
int ret;
/*
* Sanity check.
*/
if (stream == 0)
msg_panic("%s: attempt to use closed stream", myname);
/*
* Save one content record. Errors and results must be as with
* rec_fprintf().
*/
va_start(ap, fmt);
if (rec_type == REC_TYPE_NORM)
ret = rec_vfprintf(stream, rec_type, fmt, ap);
else
msg_panic("%s: need REC_TYPE_NORM", myname);
va_end(ap);
/*
* Errors last.
*/
if (ret != rec_type) {
(void) smtpd_proxy_replay_rdwr_error(VSTREAM_TO_SMTPD_STATE(stream));
return (REC_TYPE_ERROR);
}
return (rec_type);
}
int post_mail_fprintf(VSTREAM *cleanup, const char *format,...)
{
int status;
va_list ap;
va_start(ap, format);
status = rec_vfprintf(cleanup, REC_TYPE_NORM, format, ap);
va_end(ap);
return (status != REC_TYPE_NORM ? CLEANUP_STAT_WRITE : 0);
}
static int smtpd_proxy_save_cmd(SMTPD_STATE *state, int expect, const char *fmt,...)
{
va_list ap;
/*
* Errors first.
*/
if (vstream_ferror(smtpd_proxy_replay_stream)
|| vstream_feof(smtpd_proxy_replay_stream))
return (smtpd_proxy_replay_rdwr_error(state));
/*
* Save the expected reply first, so that the replayer can safely
* overwrite the input buffer with the command.
*/
rec_fprintf(smtpd_proxy_replay_stream, REC_TYPE_RCPT, "%d", expect);
/*
* The command can be omitted at the start of an SMTP session. This is
* not documented as part of the official interface because it is used
* only internally to this module. Use an explicit null string in case
* the SMTPD_PROXY_CONN_FMT implementation details change.
*/
if (fmt == SMTPD_PROXY_CONN_FMT)
fmt = "";
/*
* Save the command to the replay log, and send it to the before-queue
* filter after we have received the entire message.
*/
va_start(ap, fmt);
rec_vfprintf(smtpd_proxy_replay_stream, REC_TYPE_FROM, fmt, ap);
va_end(ap);
/*
* If we just saved the "." command, replay the log.
*/
return (strcmp(fmt, ".") ? 0 : smtpd_proxy_replay_send(state));
}
