fsexists.c

/*
 * CFLIB, a GEM library for ATARI/TOS
 * Copyright (C) 1999, 2000 Christian Felsch
 * 
 * Modified for FreeMiNT CVS by Frank Naumann <fnaumann@freemint.de>
 * 
 * Please send suggestions, patches or bug reports to me or
 * the MiNT mailing list.
 * 
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 * 
 */

#include "intern.h"
#include "file.h"

#ifndef FA_DIR
#define FA_DIR 0x10
#endif

int path_exists(char *pathname)
{
	int r = FALSE;
	
	if (pathname[0] != '\0')
	{
		size_t len = strlen(pathname);
		int trailing_backslash = pathname[len-1] == '\\';

		if (trailing_backslash)
			pathname[len-1] = '\0';

		if (Fsfirst(pathname, FA_RDONLY|FA_HIDDEN|FA_SYSTEM|FA_DIR|FA_CHANGED) == 0
			&& ((Fgetdta())->dta_attribute & FA_DIR) != 0)
			r = TRUE;

		if (trailing_backslash)
			pathname[len-1] = '\\';

		/* Work-around fuer MagiCPC, wo der stat(<Laufwerk>) nicht funkt! */
		if (cf_magxPC && !r)
		{
			if (pathname[1] == ':' && len <= 3)	/* nur Laufwerk 'X:' oder 'X:\' */
			{
				char p[80];

				/* Laufwerk existiert, wenn man das akt. Verzeichnis ermitteln kann */
				if (Dgetpath(p, toupper(pathname[0]) - 64) == 0)
					r = TRUE;
			}
		}
	}

	return r;
}