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35 lines
731 B
C
35 lines
731 B
C
/*
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*
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* (c) 2005 Laurent Vivier <Laurent@Vivier.EU>
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*
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*/
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#include <stddef.h>
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#include "libiso9660.h"
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#include "iso9660.h"
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struct iso_directory_record *iso9660_readdir(stream_DIR *_dir)
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{
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iso9660_DIR *dir = (iso9660_DIR*)_dir;
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struct iso_directory_record *idr;
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if (dir->index > 2048 - offsetof(struct iso_directory_record, name[0]))
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{
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if (dir->len <= 0)
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return NULL;
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dir->volume->device->read_sector(dir->volume->device->data, dir->extent, dir->buffer, sizeof (dir->buffer));
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dir->len -= sizeof (dir->buffer);
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dir->extent++;
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dir->index = 0;
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}
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idr = (struct iso_directory_record *) &dir->buffer[dir->index];
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if (idr->length[0] == 0)
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return NULL;
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dir->index += dir->buffer[dir->index];
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return idr;
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}
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