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/* This file is part of Eclat.
Copyright (C) 2012, 2013 Sergey Poznyakoff.
Eclat 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.
Eclat 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 Eclat. If not, see <http://www.gnu.org/licenses/>. */
#include "libeclat.h"
#include <sysexits.h>
int
eclat_confirm(enum eclat_confirm_mode mode, const char *prompt, ...)
{
int rc;
va_list ap;
switch (mode) {
case eclat_confirm_unspecified:
case eclat_confirm_positive:
return 1;
case eclat_confirm_negative:
return 0;
case eclat_confirm_tty:
if (!isatty(0))
return 1;
break;
case eclat_confirm_always:
if (!isatty(0))
die(EX_USAGE,
"confirmation required, "
"but stdin is not a terminal");
break;
}
va_start(ap, prompt);
rc = eclat_vgetyn(-1, prompt, ap);
va_end(ap);
return rc;
}
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