On Thu, Dec 06, 2012 at 07:24:04AM -0500, Miroslav Rezanina wrote: > This is second version of patch adding compare subcommand that > compares two images. Compare has following criteria: > - only data part is compared > - unallocated sectors are not read > - in case of different image size, exceeding part of bigger disk has > to be zeroed/unallocated to compare rest > - qemu-img returns: > - 0 if images are identical > - 1 if images differ > - 2 on error > > v6: > - added handling -?, -h options for compare subcommand > > v5 (only minor changes): > - removed redundant comment > - removed dead code (goto after help()) > - set final total_sectors on first assignment > > v4: > - Fixed various typos > - Added functions for empty sector check and sector-to-bytes offset > conversion > - Fixed command-line parameters processing > > v3: > - options -f/-F are orthogonal > - documentation updated to new syntax and behavior > - used byte offset instead of sector number for output > > v2: > - changed option for second image format to -F > - changed handling of -f and -F [1] > - added strict mode (-s) > - added quiet mode (-q) > - improved output messages [2] > - rename variables for larger image handling > - added man page content > > Signed-off-by: Miroslav Rezanina <mreza...@redhat.com>
Acked-by: Stefan Hajnoczi <stefa...@redhat.com>
