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| author | Yousong Zhou <yszhou4tech@gmail.com> | 2020-11-03 11:38:06 +0800 |
|---|---|---|
| committer | Yousong Zhou <yszhou4tech@gmail.com> | 2020-11-11 21:29:55 +0800 |
| commit | 50b870ee3c7a000a6f1a6c5b5e927f3af1b124c0 (patch) | |
| tree | 508a5bdb3343d5d17dc560ad0633e0e6b3784937 /package/base-files | |
| parent | bd21e4a93617a6609725509c67dc293242c80f97 (diff) | |
| download | upstream-50b870ee3c7a000a6f1a6c5b5e927f3af1b124c0.tar.gz upstream-50b870ee3c7a000a6f1a6c5b5e927f3af1b124c0.tar.bz2 upstream-50b870ee3c7a000a6f1a6c5b5e927f3af1b124c0.zip | |
base-files: upgrade: add get_image_dd()
This is mainly to handle stderr message "Broken pipe", "F+P records
in/out" by common pattern "xcat | dd .."
Ref: https://bugs.openwrt.org/index.php?do=details&task_id=3140
Reported-by: Philip Prindeville <philipp@redfish-solutions.com>
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
Reviewed-By: Philip Prindeville <philipp@redfish-solutions.com>
Diffstat (limited to 'package/base-files')
| -rw-r--r-- | package/base-files/files/lib/upgrade/common.sh | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/package/base-files/files/lib/upgrade/common.sh b/package/base-files/files/lib/upgrade/common.sh index 5eb7b23a83..a5c27dc2fb 100644 --- a/package/base-files/files/lib/upgrade/common.sh +++ b/package/base-files/files/lib/upgrade/common.sh @@ -106,6 +106,17 @@ get_image() { # <source> [ <command> ] $cmd <"$from" } +get_image_dd() { + local from="$1"; shift + + ( + exec 3>&2 + ( exec 3>&2; get_image "$from" 2>&1 1>&3 | grep -v -F ' Broken pipe' ) 2>&1 1>&3 \ + | ( exec 3>&2; dd "$@" 2>&1 1>&3 | grep -v -E ' records (in|out)') 2>&1 1>&3 + exec 3>&- + ) +} + get_magic_word() { (get_image "$@" | dd bs=2 count=1 | hexdump -v -n 2 -e '1/1 "%02x"') 2>/dev/null } |