klaptopdaemon

checkcrc.h

00001 /*
00002  * checkcrc.h
00003  *
00004  * Copyright (c) 2003 Paul Campbell <paul@taniwha.com>
00005  * Requires the Qt widget libraries, available at no cost at
00006  * http://www.troll.no/
00007  *
00008  *  This program is free software; you can redistribute it and/or modify
00009  *  it under the terms of the GNU General Public License as published by
00010  *  the Free Software Foundation; either version 2 of the License, or
00011  *  (at your option) any later version.
00012  *
00013  *  This program is distributed in the hope that it will be useful,
00014  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00015  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00016  *  GNU General Public License for more details.
00017  *
00018  *  You should have received a copy of the GNU General Public License
00019  *  along with this program; if not, write to the Free Software
00020  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
00021  */
00022 
00023 #ifndef _CHECKCRC_H_
00024 #define _CHECKCRC_H_
00025 
00026 
00027 
00028 #include <zlib.h>
00029 #include <stdio.h>
00030 
00031 static void
00032 checkcrc(const char *name, unsigned long &len_res, unsigned long &crc_res)
00033 {
00034     unsigned long crc = ::crc32(0L, Z_NULL, 0);
00035     unsigned long len = 0;
00036 
00037     FILE *f = ::fopen(name, "r");
00038     if (f) {
00039         unsigned char buffer[1024];
00040         for (;;) {
00041             int l = ::fread(buffer, 1, sizeof(buffer), f);
00042             if (l <= 0)
00043                 break;
00044             len += l;
00045                 crc = ::crc32(crc, buffer, l);
00046         }
00047         ::fclose(f);
00048     }
00049     crc_res = crc;
00050     len_res = len;
00051 }
00052 
00053 #endif
klaptopdaemon

checkcrc.h

klaptopdaemon

kdeutils
