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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2005, 2007, 2009-2012, 2014-2017 Free Software
Foundation, Inc.
GNU Mailutils is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Mailutils is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Mailutils. If not, see <http://www.gnu.org/licenses/>. */
/* A simple echo server for testing transcript streams.
Each input line is prefixed with the input line number and echoed on
stdout.
Input starting with '\\' is a command request. It must contain a string
consisting of one of the following letters:
n toggle normal transcript mode;
s toggle secure transcript mode (passwords are not displayed);
p toggle payload transcript mode.
Several letters can be passed in a single request, although that doesn't
have much sense.
The server responds to the command request with a "// " followed by
the letters describing previous transcript mode.
Transcript of the session goes to stderr.
*/
#include <mailutils/mailutils.h>
mu_stream_t
create_transcript (void)
{
mu_stream_t iostr;
mu_stream_t xstr;
mu_stream_t dstr;
mu_stdstream_setup (MU_STDSTREAM_RESET_NONE);
MU_ASSERT (mu_iostream_create (&iostr, mu_strin, mu_strout));
mu_stream_set_buffer (iostr, mu_buffer_line, 0);
MU_ASSERT (mu_dbgstream_create (&dstr, MU_DIAG_DEBUG));
MU_ASSERT (mu_xscript_stream_create (&xstr, iostr, dstr, NULL));
mu_stream_unref (dstr);
mu_stream_unref (iostr);
return xstr;
}
static int
xstream_setopt (mu_stream_t str, char const *buf)
{
int flag = MU_XSCRIPT_NORMAL;
for (; *buf; buf++)
{
switch (*buf)
{
case 'n':
case 'N':
flag |= MU_XSCRIPT_NORMAL;
break;
case 's':
case 'S':
flag |= MU_XSCRIPT_SECURE;
break;
case 'p':
case 'P':
flag |= MU_XSCRIPT_PAYLOAD;
break;
case '\n':
break;
default:
mu_error ("unrecognized flag: %c", *buf);
return -1;
}
}
MU_ASSERT (mu_stream_ioctl (str, MU_IOCTL_XSCRIPTSTREAM,
MU_IOCTL_XSCRIPTSTREAM_LEVEL, &flag));
mu_stream_printf (str, "// ");
if (flag == MU_XSCRIPT_NORMAL)
mu_stream_printf (str, "n");
else
{
if (flag & MU_XSCRIPT_SECURE)
mu_stream_printf (str, "s");
if (flag & MU_XSCRIPT_PAYLOAD)
mu_stream_printf (str, "p");
}
mu_stream_printf (str, "\n");
return 0;
}
int
main (int argc, char **argv)
{
int rc;
char *buf = NULL;
size_t size = 0, n;
unsigned line = 0;
mu_stream_t str = create_transcript ();
while ((rc = mu_stream_getline (str, &buf, &size, &n)) == 0 && n > 0)
{
line++;
if (buf[0] == '\\')
{
xstream_setopt (str, buf + 1);
continue;
}
mu_stream_printf (str, "%04u: %s", line, buf);
}
mu_stream_destroy (&str);
exit (0);
}
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