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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2019-2025 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/>. */
#include <config.h>
#include <stdlib.h>
#include <assert.h>
#include <mailutils/mailutils.h>
static mu_stream_t
base64stream(int flg)
{
mu_stream_t flt, str;
int mode;
switch (flg)
{
case MU_STREAM_READ:
mode = MU_FILTER_DECODE;
str = mu_strin;
break;
case MU_STREAM_WRITE:
mode = MU_FILTER_ENCODE;
str = mu_strout;
break;
default:
abort ();
}
MU_ASSERT (mu_filter_create (&flt, str, "base64", mode, flg));
return flt;
}
/* usage: ckiconv F T
Reads base64-encoded stream from standard input, decodes and converts
it from character set F to character set T, encodes the result back to
base64 and prints it on the standard output.
Exits with code 0 on success, 1 on failure.
*/
int
main (int argc, char **argv)
{
mu_stream_t flt, input, output;
char const *iargv[] = { "iconv", NULL, NULL, NULL };
assert (argc == 3);
iargv[1] = argv[1];
iargv[2] = argv[2];
mu_stdstream_setup (MU_STDSTREAM_RESET_NONE);
input = base64stream(MU_STREAM_READ);
output = base64stream(MU_STREAM_WRITE);
MU_ASSERT (mu_filter_chain_create (&flt, input,
MU_FILTER_ENCODE,
MU_STREAM_READ,
MU_ARRAY_SIZE (iargv) - 1, (char**) iargv));
mu_stream_unref (input);
MU_ASSERT (mu_stream_copy (output, flt, 0, NULL));
mu_stream_destroy (&flt);
mu_stream_destroy (&output);
return 0;
}
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