libchess/debug.c

   1 /* vim:tw=78:ts=8:sw=4:set ft=c:  */
   2 /*
   3     Copyright (C) 2002-2011 Ben Kibbey <bjk@luxsci.net>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18 */
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <stdarg.h>
  22
  23 #ifdef HAVE_CONFIG_H
  24 #include <config.h>
  25 #endif
  26
  27 #include "chess.h"
  28
  29 #ifdef WITH_DMALLOC
  30 #include <dmalloc.h>
  31 #endif
  32
  33 void write_debug_output(const char *filename, const char *format, ...)
  34 {
  35     FILE *fp = stderr;
  36     va_list ap;
  37     char *buf;
  38
  39     va_start(ap, format);
  40     vasprintf(&buf, format, ap);
  41     va_end(ap);
  42
  43     if (filename) {
  44         if ((fp = fopen(filename, "a")) == NULL)
  45             return;
  46     }
  47
  48     fprintf(fp, "%s", buf);
  49     fflush(fp);
  50
  51     if (filename)
  52         fclose(fp);
  53
  54     free(buf);
  55     return;
  56 }
  57
  58 char *debug_board(BOARD b)
  59 {
  60     static char buf[129];
  61     char *p = buf;
  62     int row, col;
  63
  64     for (row = 0; row < 8; row++) {
  65         for (col = 0; col < 8; col++) {
  66             *p++ = (b[row][col].enpassant) ? 'x' : b[row][col].icon;
  67
  68             if (col < 7)
  69                 *p++ = ' ';
  70         }
  71
  72         *p++ = '\n';
  73         *p = 0;
  74     }
  75
  76     *p = 0;
  77     return buf;
  78 }
  79
  80 void dump_board(const char *file, BOARD b)
  81 {
  82     write_debug_output(file, "%s", debug_board(b));
  83 }