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1 #include "demo_util.h"
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2
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3 #include <assert.h>
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4 #include <string.h>
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5 #include <stdlib.h>
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6 #include <stdio.h>
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7
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8 /* Copyright (C) 2007 Shay Green. This module is free software; you
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9 can redistribute it and/or modify it under the terms of the GNU Lesser
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10 General Public License as published by the Free Software Foundation; either
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11 version 2.1 of the License, or (at your option) any later version. This
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12 module is distributed in the hope that it will be useful, but WITHOUT ANY
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13 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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14 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
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15 details. You should have received a copy of the GNU Lesser General Public
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16 License along with this module; if not, write to the Free Software Foundation,
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17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */
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18
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19 unsigned char* load_file( const char* path, long* size_out )
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20 {
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21 size_t size;
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22 unsigned char* data;
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23
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24 FILE* in = fopen( path, "rb" );
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25 if ( !in ) error( "Couldn't open file" );
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26
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27 fseek( in, 0, SEEK_END );
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28 size = ftell( in );
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29 if ( size_out )
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30 *size_out = size;
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31 rewind( in );
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32
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33 data = (unsigned char*) malloc( size );
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34 if ( !data ) error( "Out of memory" );
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35
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36 if ( fread( data, 1, size, in ) < size ) error( "Couldn't read file" );
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37 fclose( in );
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38
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39 return data;
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40 }
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41
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42 void write_file( const char* path, void const* in, long size )
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43 {
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44 FILE* out = fopen( path, "wb" );
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45 if ( !out ) error( "Couldn't create file" );
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46 if ( (long) fwrite( in, 1, size, out ) < size ) error( "Couldn't write file" );
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47 fclose( out );
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48 }
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49
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50 void error( const char* str )
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51 {
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52 if ( str )
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53 {
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54 fprintf( stderr, "Error: %s\n", str );
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55 exit( EXIT_FAILURE );
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56 }
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57 }
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