diff options
Diffstat (limited to 'qemu-img.c')
| -rw-r--r-- | qemu-img.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/qemu-img.c b/qemu-img.c index 32c5b42008..a3d15e716b 100644 --- a/qemu-img.c +++ b/qemu-img.c @@ -542,11 +542,11 @@ static int img_convert(int argc, char **argv) drv = bdrv_find_format(out_fmt); if (!drv) error("Unknown file format '%s'", out_fmt); - if (flags & BLOCK_FLAG_COMPRESS && drv != &bdrv_qcow && drv != &bdrv_qcow2) + if (flags & BLOCK_FLAG_COMPRESS && strcmp(drv->format_name, "qcow") && strcmp(drv->format_name, "qcow2")) error("Compression not supported for this file format"); - if (flags & BLOCK_FLAG_ENCRYPT && drv != &bdrv_qcow && drv != &bdrv_qcow2) + if (flags & BLOCK_FLAG_ENCRYPT && strcmp(drv->format_name, "qcow") && strcmp(drv->format_name, "qcow2")) error("Encryption not supported for this file format"); - if (flags & BLOCK_FLAG_COMPAT6 && drv != &bdrv_vmdk) + if (flags & BLOCK_FLAG_COMPAT6 && strcmp(drv->format_name, "vmdk")) error("Alternative compatibility level not supported for this file format"); if (flags & BLOCK_FLAG_ENCRYPT && flags & BLOCK_FLAG_COMPRESS) error("Compression and encryption not supported at the same time"); @@ -655,7 +655,7 @@ static int img_convert(int argc, char **argv) if (n > bs_offset + bs_sectors - sector_num) n = bs_offset + bs_sectors - sector_num; - if (drv != &bdrv_host_device) { + if (strcmp(drv->format_name, "host_device")) { if (!bdrv_is_allocated(bs[bs_i], sector_num - bs_offset, n, &n1)) { sector_num += n1; @@ -682,7 +682,7 @@ static int img_convert(int argc, char **argv) If the output is to a host device, we also write out sectors that are entirely 0, since whatever data was already there is garbage, not 0s. */ - if (drv == &bdrv_host_device || out_baseimg || + if (strcmp(drv->format_name, "host_device") == 0 || out_baseimg || is_allocated_sectors(buf1, n, &n1)) { if (bdrv_write(out_bs, sector_num, buf1, n1) < 0) error("error while writing"); |