Blame SOURCES/cryptsetup-2.0.4-fix-write_lseek_blockwise-for-in-the-middle-of-secto.patch
|
 |
ac737d |
From 6392be68c4d481148e20dbc2a8380cc246f27ad1 Mon Sep 17 00:00:00 2001
|
|
|
ac737d |
From: Ondrej Kozina <okozina@redhat.com>
|
|
|
ac737d |
Date: Tue, 19 Jun 2018 14:45:45 +0200
|
|
|
ac737d |
Subject: [PATCH 2/4] Fix write_lseek_blockwise for in the middle of sector
|
|
|
ac737d |
case.
|
|
|
ac737d |
|
|
|
ac737d |
See unit test write_lseek_blockwise(bsize=512, offset=1, length=1).
|
|
|
ac737d |
|
|
|
ac737d |
The test tries to modify single byte at offset 1 of device with
|
|
|
ac737d |
bsize=512.
|
|
|
ac737d |
---
|
|
|
ac737d |
lib/utils_io.c | 4 ++--
|
|
|
ac737d |
1 file changed, 2 insertions(+), 2 deletions(-)
|
|
|
ac737d |
|
|
|
ac737d |
diff --git a/lib/utils_io.c b/lib/utils_io.c
|
|
|
ac737d |
index 94c4ef6..8336b18 100644
|
|
|
ac737d |
--- a/lib/utils_io.c
|
|
|
ac737d |
+++ b/lib/utils_io.c
|
|
|
ac737d |
@@ -216,8 +216,8 @@ ssize_t write_lseek_blockwise(int fd, size_t bsize, size_t alignment,
|
|
|
ac737d |
if (lseek(fd, offset - frontHang, SEEK_SET) < 0)
|
|
|
ac737d |
goto out;
|
|
|
ac737d |
|
|
|
ac737d |
- r = write_buffer(fd, frontPadBuf, frontHang + innerCount);
|
|
|
ac737d |
- if (r < 0 || r != (ssize_t)(frontHang + innerCount))
|
|
|
ac737d |
+ r = write_buffer(fd, frontPadBuf, bsize);
|
|
|
ac737d |
+ if (r < 0 || r != (ssize_t)bsize)
|
|
|
ac737d |
goto out;
|
|
|
ac737d |
|
|
|
ac737d |
buf = (char*)buf + innerCount;
|
|
|
ac737d |
--
|
|
|
ac737d |
1.8.3.1
|
|
|
ac737d |
|