38 lines
621 B
C
38 lines
621 B
C
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/*
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*
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* (c) 2005-2009 Laurent Vivier <Laurent@vivier.eu>
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*
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* This file has been copied from EMILE, http://emile.sf.net
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*
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*/
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#include "libiso9660.h"
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int iso9660_lseek(iso9660_FILE *_file, long offset, int whence)
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{
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iso9660_FILE *file = (iso9660_FILE*)_file;
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long new_offset;
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switch(whence)
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{
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case SEEK_SET:
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new_offset = offset;
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break;
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case SEEK_CUR:
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new_offset = file->offset + offset;
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break;
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case SEEK_END:
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new_offset = file->size + offset;
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break;
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default:
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return -1;
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}
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if ( (new_offset < 0) || (new_offset > file->size) )
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return -1;
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file->offset = new_offset;
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return new_offset;
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}
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