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/* c_init.c --
This file is part of the lzop file compressor.
Copyright (C) 1996-2010 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
lzop and the LZO library are free software; you can redistribute them
and/or modify them under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.
This program 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 this program; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzop/
*/
#include "conf.h"
#if defined(USE_CONSOLE)
/*************************************************************************
//
**************************************************************************/
static console_t * const me = &console_init;
console_t * con = &console_init;
int con_mode = CON_INIT;
static void try_init(console_t *c, FILE *f)
{
int k;
assert(c);
assert(c->init);
k = c->init(f,opt_console,con_mode);
if (k == CON_INIT)
return;
#if 0
if (con_mode != CON_INIT && opt_console != CON_INIT)
if (k != opt_console)
return;
#endif
if (k > con_mode)
{
con_mode = k;
con = c;
con->init = 0;
if (!con->set_fg)
con->set_fg = console_none.set_fg;
if (!con->print0)
con->print0 = console_none.print0;
if (!con->intro)
con->intro = console_none.intro;
}
}
static int do_init(FILE *f)
{
assert(con_mode == CON_INIT);
try_init(&console_none,f);
assert(con != me);
assert(con == &console_none);
assert(con_mode == CON_NONE);
if (opt_console == CON_NONE)
return con_mode;
if (!acc_isatty(STDIN_FILENO) || !acc_isatty(STDOUT_FILENO) || !acc_isatty(STDERR_FILENO))
return con_mode;
#if defined(USE_ANSI)
try_init(&console_ansi_mono,f);
try_init(&console_ansi_color,f);
#endif
#if defined(USE_SCREEN)
try_init(&console_screen,f);
#endif
#if defined(USE_AALIB)
try_init(&console_aalib,f);
#endif
return con_mode;
}
/*************************************************************************
//
**************************************************************************/
static int init(FILE *f, int o, int now)
{
if (con != me)
return con_mode;
assert(o == -1);
assert(now == -1);
UNUSED(o);
UNUSED(now);
return do_init(f);
}
static int set_fg(FILE *f, int fg)
{
if (con == me)
init(f,-1,-1);
assert(con != me);
return con->set_fg(f,fg);
}
static lzo_bool intro(FILE *f)
{
if (con == me)
init(f,-1,-1);
assert(con != me);
return con->intro(f);
}
console_t console_init =
{
init,
set_fg,
0,
intro
};
void con_fprintf(FILE *f, const char *format, ...)
{
va_list args;
char s[80*25];
va_start(args,format);
#if defined(HAVE_VSNPRINTF)
vsnprintf(s,sizeof(s),format,args);
#else
vsprintf(s,format,args);
#endif
s[sizeof(s)-1] = 0;
va_end(args);
if (con == me)
init(f,-1,-1);
assert(con != me);
con->print0(f,s);
}
#endif /* USE_CONSOLE */
/*
vi:ts=4:et
*/
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