Paul Eggert <eggert@HIDDEN>
to control <at> debbugs.gnu.org.
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bug-gzip@HIDDEN:bug#74651; Package gzip.
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From: Eduard Stefes <eduard.stefes@HIDDEN>
To: bug-gzip <bug-gzip@HIDDEN>
Subject: maint: fix s390 buffer flushes
Date: Mon, 2 Dec 2024 10:35:55 +0100
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Problem reported by Nick Rosbrook in:
https://bugs.launchpad.net/ubuntu/+source/rsyslog/+bug/2083700
align the behavior of dfltcc_inflate to do the same as gzip_inflate
when it hits a premature EOF
---
Notes:
Hi, the ubuntu folks found a problem with gzip on the ibm s390x
architecture.
( https://bugs.launchpad.net/ubuntu/+source/rsyslog/+bug/2083700 )
The dfltcc_inflate function will not flush the outbuffer in case it
encounters a premature EOF.
I changed the code to break and flush the buffers just like the regular
implementation does.
I also had to change the `hufts` test. For this special test-data the
dfltcc decompression routine request more data instead of reporting a
data--format error.
dfltcc.c | 2 +-
tests/hufts | 6 ++++--
2 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/dfltcc.c b/dfltcc.c
index 811c1f8..2a5b350 100644
--- a/dfltcc.c
+++ b/dfltcc.c
@@ -434,7 +434,7 @@ dfltcc_inflate ()
flush_outbuf ();
if (inptr == insize)
{
- if (fill_inbuf (1) == EOF)
+ if (fill_inbuf (0) == EOF)
{
/* Premature EOF. */
return 2;
diff --git a/tests/hufts b/tests/hufts
index c464ef6..6dbb8ac 100755
--- a/tests/hufts
+++ b/tests/hufts
@@ -40,10 +40,12 @@ compare exp err || fail=1
printf '\037\213\010\000\060\060\060\060\060\060\144\000\000\000' > bug33501 \
|| framework_failure_
-printf '\ngzip: stdin: invalid compressed data--format violated\n' >exp33501 \
+printf '\ngzip: stdin: invalid compressed data--format violated\n' > exp33501.1 \
+ || framework_failure_
+printf '\ngzip: stdin: unexpected end of file\n' > exp33501.2 \
|| framework_failure_
returns_ 1 gzip -d <bug33501 >out33501 2> err33501-raw || fail=1
sed "$clean_stderr" err33501-raw > err33501 || framework_failure_
-compare exp33501 err33501 || fail=1
+compare exp33501.1 err33501 || compare exp33501.2 err33501 || fail=1
Exit $fail
--
2.47.1
Eduard Stefes <eduard.stefes@HIDDEN>:bug-gzip@HIDDEN.
Full text available.bug-gzip@HIDDEN:bug#74651; Package gzip.
Full text available.
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