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| author | Ari Sundholm <ari@tuxera.com> | 2019-01-29 14:42:57 +0100 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2019-01-29 14:42:57 +0100 |
| commit | 9a9c6e39ba4c8f4f2cecb147c7e6464bec2d8b55 (patch) | |
| tree | ffd9a73b098670937ef0a2d33966a6669ec59d96 /util-linux/uevent.c | |
| parent | 53799506acf69e7f7137d91fa5a4451211621469 (diff) | |
| download | busybox-9a9c6e39ba4c8f4f2cecb147c7e6464bec2d8b55.tar.gz | |
grep: fix -x -v with certain pattern orders
We found out that busybox -x -v is a bit broken:
ari@ari-thinkpad:~/busybox$ echo ' aa bb cc' | ./busybox grep -x -e 'aa.*' -e '.*bb.*'
aa bb cc
ari@ari-thinkpad:~/busybox$ echo ' aa bb cc' | ./busybox grep -x -v -e 'aa.*' -e '.*bb.*'
ari@ari-thinkpad:~/busybox$ echo ' aa bb cc' | ./busybox grep -x -e '.*aa.*' -e 'bb.*'
aa bb cc
ari@ari-thinkpad:~/busybox$ echo ' aa bb cc' | ./busybox grep -x -v -e '.*aa.*' -e 'bb.*'
aa bb cc
Last one is wrong.
This patch fixes the issue by making sure that the variable 'found'
never makes a transition from 1 to 0, as this would mean that
grep previously found a match on this input line.
Signed-off-by: Ari Sundholm <ari@tuxera.com>
Signed-off-by: Niko Vähäsarja <niko@tuxera.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'util-linux/uevent.c')
0 files changed, 0 insertions, 0 deletions