67 lines
2.0 KiB
C
Executable File
67 lines
2.0 KiB
C
Executable File
#include "rijndael_dec_libc.h"
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int rijndael_dec_toupper( int c )
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{
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if ( ( c >= 'a' ) && ( c <= 'z' ) )
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return c - 'a' + 'A';
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return c;
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}
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unsigned long rijndael_dec_fread( void *ptr, unsigned long size,
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unsigned long count, struct rijndael_dec_FILE *stream )
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{
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unsigned i = stream->cur_pos, i2 = 0;
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unsigned long number_of_chars_to_read =
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stream->size - stream->cur_pos >= size * count ?
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size * count : stream->size - stream->cur_pos;
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_Pragma( "loopbound min 0 max 16" )
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while ( i < stream->cur_pos + number_of_chars_to_read )
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( ( unsigned char * )ptr )[ i2++ ] = stream->data[ i++ ];
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stream->cur_pos += number_of_chars_to_read;
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return number_of_chars_to_read;
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}
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unsigned long rijndael_dec_fwrite( const void *ptr, unsigned long size,
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unsigned long count, struct rijndael_dec_FILE *stream )
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{
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unsigned i = stream->cur_pos, i2 = 0;
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unsigned long number_of_chars_to_write =
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stream->size - stream->cur_pos >= size * count ?
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size * count : stream->size - stream->cur_pos;
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_Pragma( "loopbound min 0 max 0" )
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while ( i < stream->cur_pos + number_of_chars_to_write )
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stream->data[ i++ ] = ( ( unsigned char * )ptr )[ i2++ ];
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stream->cur_pos += number_of_chars_to_write;
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return number_of_chars_to_write;
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}
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int rijndael_dec_fseek( struct rijndael_dec_FILE *stream, long int offset,
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Origin origin )
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{
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if ( origin == RIJNDAEL_DEC_SEEK_SET ) {
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stream->cur_pos = offset;
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return 0;
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} else
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if ( origin == RIJNDAEL_DEC_SEEK_CUR ) {
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stream->cur_pos += offset;
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return 0;
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} else
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if ( origin == RIJNDAEL_DEC_SEEK_END ) {
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stream->cur_pos = stream->size + offset;
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return 0;
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}
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return -1;
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}
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int rijndael_dec_fgetpos( struct rijndael_dec_FILE *stream,
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unsigned *position )
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{
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*position = stream->cur_pos;
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return 0;
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}
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int rijndael_dec_feof( struct rijndael_dec_FILE *stream )
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{
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return stream->cur_pos == stream->size ? 1 : 0;
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}
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