flt2047.c
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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2010 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/>. */
#if defined(HAVE_CONFIG_H)
# include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <mailutils/mailutils.h>
#include "argp.h"
#include "mu.h"
static char flt2047_doc[] = N_("mu 2047 - decode/encode message headers");
static char flt2047_args_doc[] = N_("[OPTIONS] [text]");
static struct argp_option flt2047_options[] = {
{ "encode", 'e', NULL, 0, N_("encode the input (default)") },
{ "decode", 'd', NULL, 0, N_("decode the input") },
{ "newline", 'n', NULL, 0, N_("print additional newline") },
{ "charset", 'c', N_("NAME"), 0,
N_("set charset (default: iso-8859-1)") },
{ "encoding", 'E', N_("NAME"), 0,
N_("set encoding (default: quoted-printable)") },
{ NULL }
};
static int decode_mode = 0;
static int newline_option = 0;
static const char *charset = "iso-8859-1";
static const char *encoding = "quoted-printable";
static error_t
flt2047_parse_opt (int key, char *arg, struct argp_state *state)
{
switch (key)
{
case 'c':
charset = arg;
break;
case 'e':
decode_mode = 0;
break;
case 'E':
encoding = arg;
break;
case 'd':
decode_mode = 1;
break;
case 'n':
newline_option = 0;
break;
default:
return ARGP_ERR_UNKNOWN;
}
return 0;
}
static struct argp flt2047_argp = {
flt2047_options,
flt2047_parse_opt,
flt2047_args_doc,
flt2047_doc,
NULL,
NULL,
NULL
};
int
mutool_flt2047 (int argc, char **argv)
{
int rc, index;
mu_stream_t in, out;
char *p;
if (argp_parse (&flt2047_argp, argc, argv, ARGP_IN_ORDER, &index, NULL))
return 1;
argc -= index;
argv += index;
rc = mu_stdio_stream_create (&in, MU_STDIN_FD, 0);
if (rc)
{
mu_error (_("cannot open input stream: %s"), mu_strerror (rc));
return 1;
}
rc = mu_stdio_stream_create (&out, MU_STDOUT_FD, 0);
if (rc)
{
mu_error (_("cannot open output stream: %s"), mu_strerror (rc));
return 1;
}
if (argc)
{
char *p;
while (argc--)
{
const char *text = *argv++;
if (decode_mode)
rc = mu_rfc2047_decode (charset, text, &p);
else
rc = mu_rfc2047_encode (charset, encoding, text, &p);
if (rc)
{
mu_error ("%s", mu_strerror (rc));
return 1;
}
mu_stream_printf (out, "%s\n", p);
}
}
else
{
size_t size = 0, n;
char *buf = NULL;
while ((rc = mu_stream_getline (in, &buf, &size, &n)) == 0 && n > 0)
{
mu_rtrim_class (buf, MU_CTYPE_SPACE);
if (decode_mode)
rc = mu_rfc2047_decode (charset, buf, &p);
else
rc = mu_rfc2047_encode (charset, encoding, buf, &p);
if (rc)
{
mu_error ("%s", mu_strerror (rc));
return 1;
}
mu_stream_printf (out, "%s\n", p);
}
}
mu_stream_flush (out);
return 0;
}