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https://github.com/xen-project/xen.git
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Keir Fraser
2b8ba91b50
- Use standard off_t and lseek() instead of non-portable off64_t and lseek64() - Use uuid API as documented in DCE 1.1 RPC specification - Add NetBSD implementation for blk_getimagesize() and blk_getsectorsize() - Use blk_getimagesize() and blk_getsectorsize() - Fix uuid header check Signed-off-by: Christoph Egger <Christoph.Egger@amd.com> Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
42 lines
729 B
C
42 lines
729 B
C
#include <sys/param.h>
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#include <sys/ioctl.h>
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#include <sys/disklabel.h>
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#include <errno.h>
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#include <inttypes.h>
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#include "tapdisk.h"
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#include "blk.h"
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int blk_getimagesize(int fd, uint64_t *size)
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{
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int rc;
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struct disklabel dl;
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*size = 0;
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rc = ioctl(fd, DIOCGDINFO, &dl);
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if (rc) {
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DPRINTF("ERR: DIOCGDINFO failed, couldn't stat image");
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return -EINVAL;
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}
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*size = dl.d_secsize * dl.d_secpercyl;
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return 0;
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}
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int blk_getsectorsize(int fd, uint64_t *sector_size)
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{
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int rc;
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struct disklabel dl;
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*sector_size = DEV_BSIZE;
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rc = ioctl(fd, DIOCGDINFO, &dl);
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if (rc) {
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DPRINTF("ERR: DIOCGDINFO failed, couldn't stat image");
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return 0; /* fallback to DEV_BSIZE */
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}
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*sector_size = dl.d_secsize;
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return 0;
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}
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