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authorJim Meyering <jim@meyering.net>2006-06-08 20:13:37 +0000
committerJim Meyering <jim@meyering.net>2006-06-08 20:13:37 +0000
commit790892db657ac79b0ba5f7a69cc7e70eb4fed8e0 (patch)
tree6d768a6a1af6cab8a813c1173dddc93c352f4751 /NEWS
parentcad27cdc2ea46ec401b71b76a92fcf3bc1d094e0 (diff)
downloadcoreutils-790892db657ac79b0ba5f7a69cc7e70eb4fed8e0.tar.xz
Ensure that cat works with any of the options, -A -v -e -E -T,
when applied to files in /proc and /sys, even when the FIONREAD ioctl produces nonsensical results. Before this change, cat would produce no output (or truncated output), for some linux kernels. * src/cat.c (write_pending): New function, factored out of cat. (cat): Also interpret a negative ioctl/FIONREAD count as indicating that there are bytes to read. Some versions of linux-2.6.16 do that. Write any pending output before returning. Reported by Dan Jacobson in <http://bugs.debian.org/370583>. * NEWS: Mention this bug fix. * tests/misc/cat-proc: New file. Test for the above. * tests/misc/Makefile.am (TESTS): Add cat-proc.
Diffstat (limited to 'NEWS')
-rw-r--r--NEWS4
1 files changed, 4 insertions, 0 deletions
diff --git a/NEWS b/NEWS
index be511eb25..fdca45225 100644
--- a/NEWS
+++ b/NEWS
@@ -138,6 +138,10 @@ GNU coreutils NEWS -*- outline -*-
** Bug fixes
+ cat with any of the options, -A -v -e -E -T, when applied to a
+ file in /proc or /sys (linux-specific), would truncate its output,
+ usually printing nothing.
+
cp -p would fail in a /proc-less chroot, on some systems
When `cp -RL' encounters the same directory more than once in the