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| author | Pádraig Brady <P@draigBrady.com> | 2016-11-09 17:51:13 +0000 |
|---|---|---|
| committer | Pádraig Brady <P@draigBrady.com> | 2016-11-09 21:38:33 +0000 |
| commit | 659060233ff2cff324be5cf4cc40b782068d45fd (patch) | |
| tree | e3769014e9f5723a91836eaca3835ca80cc89f07 /src | |
| parent | 7fc7206b03a7f54b23904373ad397f693a5fae2a (diff) | |
| download | coreutils-659060233ff2cff324be5cf4cc40b782068d45fd.tar.xz | |
tail: ensure -f --retry 'missing' handles truncation
* src/tail.c (tail_forever): The BLOCKING optimization is only
enabled for non regular files (which can't be truncated), so ensure
we don't enable that unless we've a valid file descriptor.
* tests/tail-2/retry.sh: Add a test case.
* NEWS: Mention the bug fix.
Diffstat (limited to 'src')
| -rw-r--r-- | src/tail.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/tail.c b/src/tail.c index b3018d526..66aad5b78 100644 --- a/src/tail.c +++ b/src/tail.c @@ -1111,7 +1111,7 @@ tail_forever (struct File_spec *f, size_t n_files, double sleep_interval) { /* Use blocking I/O as an optimization, when it's easy. */ bool blocking = (pid == 0 && follow_mode == Follow_descriptor - && n_files == 1 && ! S_ISREG (f[0].mode)); + && n_files == 1 && f[0].fd != -1 && ! S_ISREG (f[0].mode)); size_t last; bool writer_is_dead = false; |