murun.c
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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2003, 2005, 2007 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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301 USA */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <mailutils/mailutils.h>
#include <mailutils/argcv.h>
static void
read_and_print (mu_stream_t in, mu_stream_t out)
{
size_t size;
char buffer[128];
while (mu_stream_sequential_readline (in, buffer, sizeof (buffer), &size) == 0
&& size > 0)
{
mu_stream_sequential_write (out, buffer, size);
}
}
int
main (int argc, char *argv[])
{
int rc;
mu_stream_t stream, out;
int read_stdin = 0;
int i = 1;
char *cmdline;
int flags = MU_STREAM_READ;
if (argc > 1 && strcmp (argv[i], "--stdin") == 0)
{
read_stdin = 1;
flags |= MU_STREAM_WRITE;
i++;
}
if (i == argc)
{
fprintf (stderr, "Usage: %s [--stdin] progname [args]\n", argv[0]);
exit (1);
}
MU_ASSERT (mu_argcv_string (argc - i, &argv[i], &cmdline));
if (read_stdin)
{
mu_stream_t in;
MU_ASSERT (mu_stdio_stream_create (&in, stdin, 0));
MU_ASSERT (mu_stream_open (in));
rc = mu_filter_prog_stream_create (&stream, cmdline, in);
}
else
rc = mu_prog_stream_create (&stream, cmdline, flags);
if (rc)
{
fprintf (stderr, "%s: cannot create program filter stream: %s\n",
argv[0], mu_strerror (rc));
exit (1);
}
rc = mu_stream_open (stream);
if (rc)
{
fprintf (stderr, "%s: cannot open program filter stream: %s\n",
argv[0], mu_strerror (rc));
exit (1);
}
MU_ASSERT (mu_stdio_stream_create (&out, stdout, 0));
MU_ASSERT (mu_stream_open (out));
read_and_print (stream, out);
mu_stream_close (stream);
mu_stream_destroy (&stream, mu_stream_get_owner (stream));
mu_stream_close (out);
mu_stream_destroy (&out, mu_stream_get_owner (stream));
return 0;
}