/*====================================================================* * * 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; * Copyright (c) 2001-2006 by Charles Maier Associates; * Licensed under the Internet Software Consortium License; * *--------------------------------------------------------------------*/ #ifndef CHECKFILENAME_SOURCE #define CHECKFILENAME_SOURCE #include #include #include "../tools/files.h" bool checkfilename (char const * pathname) { char const * filename = pathname; while (*pathname) { if ((*pathname == '/') || (*pathname == '\\')) { filename = pathname + 1; } pathname++; } while (isalnum (*filename) || (*filename == '.') || (*filename == '_') || (*filename == '-')) { filename++; } return (*filename == (char) (0)); } #endif