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| author | Elliott Hughes <enh@google.com> | 2019-02-12 16:29:09 -0800 |
|---|---|---|
| committer | Rob Landley <rob@landley.net> | 2019-02-12 21:31:20 -0600 |
| commit | 7079a558d6e9448d5434965985b650c1e572140e (patch) | |
| tree | 5421ca8fe368722a744a7a5c906b05a6a5780c55 /lib | |
| parent | 8326fe1f7e141f49a46a57acc6221651298b42c9 (diff) | |
| download | toybox-7079a558d6e9448d5434965985b650c1e572140e.tar.gz | |
sed: fix substitution of empty capturing groups.
The test for \N where N was larger than the number of capturing groups
in the regular expression was incorrect, and firing for cases such as
matching __(ARM_)?NR_([a-z]*) against __NR_read, where the first group is
empty (because it failed to match) but the second group did match "read".
Use regex_t's re_nsub for the error check, and treat rm_so == -1 as a
signal to just copy nothing into the result.
(Found trying to build minijail in AOSP.)
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions