csu3_am335x/EVSE/GPL/plc-utils.LNX.2.1.20/source/tools/checkfilename.c

/*====================================================================*
 *   
 *   bool checkfilename (char const * pathname);
 *
 *   files.h
 *   
 *   confirm that the filename portion of a pathname string contains
 *   only letters, digits, periods, underscores and hyphens; 
 *
 *   this prevents users from entering an Ethernet address where a 
 *   filename should appear on the command line; Ethernet addresses 
 *   are also valid filenames;
 *   
 *   Motley Tools by Charles Maier <cmaier@cmassoc.net>;
 *   Copyright (c) 2001-2006 by Charles Maier Associates;
 *   Licensed under the Internet Software Consortium License;
 *
 *--------------------------------------------------------------------*/

#ifndef CHECKFILENAME_SOURCE
#define CHECKFILENAME_SOURCE

#include <string.h>
#include <ctype.h>

#include "../tools/files.h"

bool checkfilename (char const * pathname) 

{ 
	char const * filename = pathname; 
	while (* pathname) 
	{ 
		if ((* pathname == '/') || (* pathname == '\\')) 
		{ 
			filename = pathname +  1; 
		} 
		pathname++; 
	} 
	while (isalnum ((unsigned char)* filename) || (* filename == '.') || (* filename == '_') || (* filename == '-'))  
	{ 
		filename++; 
	} 
	return (* filename == (char) (0)); 
} 

#endif