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From e3615ecb5b6ad8eb408296878aad5628e0e27166 Mon Sep 17 00:00:00 2001
From: Coly Li <colyli@suse.de>
Date: Tue, 12 Feb 2019 12:53:18 +0800
Subject: [RHEL7.7 PATCH 15/21] Detail.c: do not skip first character when
calling xstrdup in Detail()
'Commit b9c9bd9bacaa ("Detail: ensure --export names are acceptable as
shell variables")' duplicates mdi->sys_name to sysdev string by,
char *sysdev = xstrdup(mdi->sys_name + 1);
which skips the first character of mdi->sys_name. Then when running
mdadm --detail <md device> --export, the output looks like,
MD_DEVICE_ev_sda2_ROLE=1
MD_DEVICE_ev_sda2_DEV=/dev/sda2
The first character of md device (between MD_DEVICE and _ROLE/_DEV)
is dropped. The expected output should be,
MD_DEVICE_dev_sda2_ROLE=1
MD_DEVICE_dev_sda2_DEV=/dev/sda2
This patch removes the '+ 1' from calling xstrdup() in Detail(), which
gets the dropped first character back.
Reported-by: Arvin Schnell <aschnell@suse.com>
Fixes: b9c9bd9bacaa ("Detail: ensure --export names are acceptable as 4 shell variables")
Signed-off-by: Coly Li <colyli@suse.de>
Cc: NeilBrown <neilb@suse.com>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>
---
Detail.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Detail.c b/Detail.c
index b3e857a..20ea03a 100644
--- a/Detail.c
+++ b/Detail.c
@@ -284,7 +284,7 @@ int Detail(char *dev, struct context *c)
struct mdinfo *mdi;
for (mdi = sra->devs; mdi; mdi = mdi->next) {
char *path;
- char *sysdev = xstrdup(mdi->sys_name + 1);
+ char *sysdev = xstrdup(mdi->sys_name);
char *cp;
path = map_dev(mdi->disk.major,
--
2.7.5