84 lines
1.3 KiB
C
84 lines
1.3 KiB
C
/*
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data source for libisoburn.
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Copyright 2007 Vreixo Formoso Lopes <metalpain2002@yahoo.es>
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*/
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#include <assert.h>
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#include <stdlib.h>
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#ifndef Xorriso_standalonE
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#include <libburn/libburn.h>
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#include <libisofs/libisofs.h>
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#else /* ! Xorriso_standalonE */
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#include "../libisofs/libisofs.h"
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#include "../libburn/libburn.h"
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#endif /* Xorriso_standalonE */
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#include "isoburn.h"
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static int
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ds_read_block(IsoDataSource *src, uint32_t lba, uint8_t *buffer)
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{
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int ret;
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struct burn_drive *d;
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off_t count;
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assert(src && buffer);
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d = (struct burn_drive*)src->data;
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ret = burn_read_data(d, (off_t) lba * (off_t) 2048, (char *) buffer,
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2048, &count, 0);
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if (ret <= 0 )
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return -1;
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return 1;
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}
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static int
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ds_open(IsoDataSource *src)
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{
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/* nothing to do, device is always grabbed */
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return 1;
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}
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static int
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ds_close(IsoDataSource *src)
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{
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/* nothing to do, device is always grabbed */
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return 1;
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}
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static void
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ds_free_data(IsoDataSource *src)
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{
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/* nothing to do */;
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}
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IsoDataSource *
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isoburn_data_source_new(struct burn_drive *d)
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{
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IsoDataSource *ret;
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if (d==NULL)
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return NULL;
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ret = malloc(sizeof(IsoDataSource));
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if (!ret)
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return NULL;
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ret->refcount = 1;
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ret->read_block = ds_read_block;
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ret->open = ds_open;
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ret->close = ds_close;
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ret->free_data = ds_free_data;
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ret->data = d;
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return ret;
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}
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