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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 1999-2002, 2005, 2007, 2010-2012 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/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <stdio.h>
#include <assert.h>
#include <ctype.h>
#include <string.h>
#include <mailutils/mailutils.h>
int verbose;
void
ioloop (char *id, mu_stream_t in, mu_stream_t out)
{
char *buf = NULL;
size_t size = 0, n;
int rc;
while ((rc = mu_stream_getline (in, &buf, &size, &n)) == 0 && n > 0)
{
if (rc)
{
mu_error("%s: read error: %s", id, mu_stream_strerror (in, rc));
exit (1);
}
MU_ASSERT (mu_stream_write (out, buf, n, NULL));
}
mu_stream_flush (out);
if (verbose)
fprintf (stderr, "%s exited\n", id);
}
int
main (int argc, char * argv [])
{
mu_stream_t in, out, sock;
pid_t pid;
int status, c;
while ((c = getopt (argc, argv, "v")) != EOF)
switch (c)
{
case 'v':
verbose++;
break;
case 'h':
printf ("usage: musocio file\n");
return 0;
default:
return 1;
}
argc -= optind;
argv += optind;
if (argc != 2)
{
mu_error ("usage: musocio file");
return 1;
}
MU_ASSERT (mu_stdio_stream_create (&in, MU_STDIN_FD, 0));
mu_stream_set_buffer (in, mu_buffer_line, 0);
MU_ASSERT (mu_stdio_stream_create (&out, MU_STDOUT_FD, 0));
mu_stream_set_buffer (out, mu_buffer_line, 0);
MU_ASSERT (mu_socket_stream_create (&sock, argv[1], MU_STREAM_RDWR));
mu_stream_set_buffer (sock, mu_buffer_line, 0);
pid = fork ();
if (pid == -1)
{
mu_error ("fork failed: %s", mu_strerror (errno));
return 1;
}
if (pid == 0)
{
mu_stream_close (in);
mu_stream_destroy (&in);
ioloop ("reader", sock, out);
exit (0);
}
ioloop ("writer", in, sock);
mu_stream_close (in);
mu_stream_destroy (&in);
mu_stream_shutdown (sock, MU_STREAM_WRITE);
waitpid (pid, &status, 0);
mu_stream_close (sock);
mu_stream_destroy (&sock);
mu_stream_close (out);
mu_stream_destroy (&out);
return 0;
}
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