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| author | Rich Felker <dalias@aerifal.cx> | 2020-11-23 19:44:19 -0500 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2020-11-23 19:44:19 -0500 |
| commit | e2fa720be7024cce4fc489f3877476d35da48ee2 (patch) | |
| tree | 624a4b85cc7aacccc9a359eaf0ffc00a614ffddf /include | |
| parent | parse v3 or future-unknown zoneinfo file versions as v2+ (diff) | |
| download | grovel-e2fa720be7024cce4fc489f3877476d35da48ee2.tar.gz grovel-e2fa720be7024cce4fc489f3877476d35da48ee2.tar.xz | |
work around linux bug in readlink syscall with zero buffer size
linux fails with EINVAL when a zero buffer size is passed to the
syscall. this is non-conforming because POSIX already defines EINVAL
with a significantly different meaning: the target is not a symlink.
since the request is semantically valid, patch it up by using a dummy
buffer of length one, and truncating the return value to zero if it
succeeds.
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions