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authorEd Bartosh <ed.bartosh@linux.intel.com>2017-03-22 15:42:28 +0200
committerRichard Purdie <richard.purdie@linuxfoundation.org>2017-03-22 15:07:37 +0000
commit567186f995302a095a771baede4ff5034d1d1862 (patch)
tree09af33868e3c1eb7e7b6f56420de0065ff67997b
parent48a5d67d7cafdeac821e6f35bea380521ef017d5 (diff)
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wic: fix bug in sparse_copy
sparse_copy creates output file that is smaller than input file when input file ends with unmapped blocks. Used truncate(<input file size>) when output file is created to ensure the size of output file will always be equal to the size of input file. Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
-rw-r--r--scripts/lib/wic/filemap.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/scripts/lib/wic/filemap.py b/scripts/lib/wic/filemap.py
index 162603ed0a1..080668e7c28 100644
--- a/scripts/lib/wic/filemap.py
+++ b/scripts/lib/wic/filemap.py
@@ -537,6 +537,7 @@ def sparse_copy(src_fname, dst_fname, offset=0, skip=0):
dst_file = open(dst_fname, 'r+b')
except IOError:
dst_file = open(dst_fname, 'wb')
+ dst_file.truncate(os.path.getsize(src_fname))
for first, last in fmap.get_mapped_ranges(0, fmap.blocks_cnt):
start = first * fmap.block_size