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