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| author | Pádraig Brady <P@draigBrady.com> | 2014-09-26 15:46:28 +0100 |
|---|---|---|
| committer | Pádraig Brady <P@draigBrady.com> | 2014-09-30 16:08:43 +0100 |
| commit | 27d2c7383f18d0f59b0d096f156ed6cb1677642b (patch) | |
| tree | 4751ae63c97f082140065ba434b07afe3807512f /NEWS | |
| parent | 4d8c4dfc2170bde7a25bbf5db6dd2d6e54b43fac (diff) | |
| download | coreutils-27d2c7383f18d0f59b0d096f156ed6cb1677642b.tar.xz | |
dd: use more robust SIGUSR1 handling
* src/dd.c (ifd_reopen): A new wrapper to ensure we
don't exit upon receiving a SIGUSR1 in a blocking open()
on a fifo for example.
(iftruncate): Likewise for ftruncate().
(iread): Process signals also after a short read.
(install_signal_handlers): Install SIGINFO/SIGUSR1 handler
even if set to SIG_IGN, as this is what the parent can easily
set from a shell script that can send SIGUSR1 without the
possiblity of inadvertently killing the dd process.
* doc/coreutils.texi (dd invocation): Improve the example to
show robust usage wrt signal races and short reads.
* tests/dd/stats.sh: A new test for various signal races.
* tests/local.mk: Reference the new test.
* NEWS: Mention the fix.
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -4,6 +4,9 @@ GNU coreutils NEWS -*- outline -*- ** Bug fixes + dd supports more robust SIGINFO/SIGUSR1 handling for outputting statistics. + Previously those signals may have inadvertently terminated the process. + cp no longer issues an incorrect warning about directory hardlinks when a source directory is specified multiple times. Now, consistent with other file types, a warning is issued for source directories with duplicate names, |