mdw@git.distorted.org.uk Git - ssr/blob - StraySrc/Libraries/Steel/h/crc

   1 /*
   2  * crc
   3  *  Checks CRC values for resource files
   4  *
   5  * v. 1.00 (24 August 1991)
   6  *
   7  * © 1991-1998 Straylight
   8  */
   9
  10 /*----- Licensing note ----------------------------------------------------*
  11  *
  12  * This file is part of Straylight's Steel library.
  13  *
  14  * Steel is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2, or (at your option)
  17  * any later version.
  18  *
  19  * Steel is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with Steel.  If not, write to the Free Software Foundation,
  26  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  27  */
  28
  29 #ifndef __crc_h
  30 #define __crc_h
  31
  32 /*
  33  * long crc(char *filename)
  34  *
  35  * Use
  36  *  Calculates the CRC value for the file specified.  Uses the same method
  37  *  as WindowEd etc.
  38  *
  39  * Parameters
  40  *  char *filename == the filename of the file to check (leaf only - it's
  41  *    passed through res_findname()).  Note that CRC-checking the
  42  *    '!RunImage' file is rather silly.
  43  *
  44  * Returns
  45  *  A 4-byte CRC value
  46  */
  47
  48 long crc(char *filename);
  49
  50 /*
  51  * void crc_check(char *filename,long check)
  52  *
  53  * Use
  54  *  Checks a CRC value for a file and reports a fatal error if the check
  55  *  fails.
  56  *
  57  * Parameters
  58  *  char *filename == the leafname of the file
  59  *  long check == the CRC number to check with
  60  */
  61
  62 void crc_check(char *filename,long check);
  63
  64 /*
  65  * void crc_checkRunImage(void)
  66  *
  67  * Use
  68  *  Corruption-checks the main !RunImage file.  It must have been passed
  69  *  through CodeScr first, to install the CRC into the code.
  70  */
  71
  72 void crc_checkRunImage(void);
  73
  74 #endif