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/*
NAME
strout - test whether mu_strout or mu_strerr is functioning.
DESCRIPTION
This test program reads data byte by byte from stdin using the stdio
input functions and sends them to mu_strout or mu_strerr using the
mu_stream_write function.
Both mu_strout and mu_strerr spring into existence the first time they
are used by any function of the stream family. Therefore, care is
taken not to call any mailutils I/O function either directly or
indirectly prior to the first write to the stream being tested.
OPTIONS
-err
Write to mu_strerr.
-reset
Call mu_stdstream_setup with the appropriate MU_STDSTREAM_RESET_
flag explicitly.
LICENSE
GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2011-2021 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 <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <mailutils/stream.h>
#include <mailutils/stdstream.h>
#include <mailutils/diag.h>
#include <mailutils/errno.h>
int
main (int argc, char **argv)
{
mu_stream_t str = mu_strout;
int i;
char c;
for (i = 1; i < argc; i++)
{
char *arg = argv[i];
if (arg[0] == '-')
{
if (strcmp (arg, "-out") == 0)
str = mu_strout;
else if (strcmp (arg, "-err") == 0)
str = mu_strerr;
else if (strcmp (arg, "-reset") == 0)
{
if (str == mu_strout)
{
mu_stdstream_setup (MU_STDSTREAM_RESET_STROUT);
str = mu_strout;
}
else
{
mu_stdstream_setup (MU_STDSTREAM_RESET_STRERR);
str = mu_strerr;
}
}
else
{
fprintf (stderr, "%s: unrecognized option %s\n", argv[0], arg);
return 1;
}
}
}
while ((c = getchar ()) != EOF)
{
size_t n;
int rc = mu_stream_write (str, &c, 1, &n);
if (rc)
{
fprintf (stderr, "mu_stream_write: %s", mu_strerror (rc));
return 1;
}
if (n != 1)
{
fprintf (stderr, "wrote %zu bytes?\n", n);
return 1;
}
}
return 0;
}
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