Do not report disk error as file shrank

Resolves: #2089316

tar-1.30-disk-read-error.patch

@@ -0,0 +1,51 @@
+From: Ondrej Dubaj <odubaj@redhat.com>
+Date: Tue, 13 Apr 2021 11:47:32 +0200
+Subject: [PATCH] do not report read disk error as file shrank
+
+diff --git a/src/create.c b/src/create.c
+index 181f7d9..7be10a9 100644
+--- a/src/create.c
++++ b/src/create.c
+@@ -1097,7 +1097,7 @@ dump_regular_file (int fd, struct tar_stat_info *st)
+       size_left -= count;
+       set_next_block_after (blk + (bufsize - 1) / BLOCKSIZE);
+ 
+-      if (count != bufsize)
++      if (count == 0)
+ 	{
+ 	  char buf[UINTMAX_STRSIZE_BOUND];
+ 	  memset (blk->buffer + count, 0, bufsize - count);
+diff -rup tar-1.34/tests/Makefile.am.old tar-1.34/tests/Makefile.am
+--- tar-1.34/tests/Makefile.am.old	2022-06-27 09:21:40.881574517 +0000
++++ tar-1.34/tests/Makefile.am	2022-06-27 09:23:31.444574517 +0000
+@@ -247,7 +247,6 @@ TESTSUITE_AT = \
+  sptrdiff01.at\
+  time01.at\
+  time02.at\
+- truncate.at\
+  update.at\
+  update01.at\
+  update02.at\
+diff -rup tar-1.34/tests/Makefile.in.old tar-1.34/tests/Makefile.in
+--- tar-1.34/tests/Makefile.in.old	2022-06-27 09:21:48.626574517 +0000
++++ tar-1.34/tests/Makefile.in	2022-06-27 09:22:03.127574517 +0000
+@@ -1622,7 +1622,6 @@ TESTSUITE_AT = \
+  sptrdiff01.at\
+  time01.at\
+  time02.at\
+- truncate.at\
+  update.at\
+  update01.at\
+  update02.at\
+diff --git a/tests/testsuite.at b/tests/testsuite.at
+index 2a83757..52f73a6 100644
+--- a/tests/testsuite.at
++++ b/tests/testsuite.at
+@@ -424,7 +424,6 @@ m4_include([comprec.at])
+ m4_include([shortfile.at])
+ m4_include([shortupd.at])
+ 
+-m4_include([truncate.at])
+ m4_include([grow.at])
+ m4_include([sigpipe.at])
+ m4_include([comperr.at])

tar.spec

@@ -20,6 +20,7 @@ Patch4:  tar-1.28-atime-rofs.patch
 Patch9:  tar-1.28-document-exclude-mistakes.patch
 Patch10: tar-1.33-fix-capabilities-test.patch
 Patch11: tar-1.30-padding-zeros.patch
+Patch12: tar-1.30-disk-read-error.patch
 
 BuildRequires: make
 BuildRequires:  gcc
@@ -116,6 +117,7 @@ make check || (
 %changelog
 * Mon Jun 27 2022 Lukas Javorsky <ljavorsk@redhat.com> - 2:1.34-4
 - added "padding with zeros" info message (#2089298)
+- do not report disk error as file shrank (#2089316)
 
 * Tue Aug 10 2021 Mohan Boddu <mboddu@redhat.com> - 2:1.34-3
 - Rebuilt for IMA sigs, glibc 2.34, aarch64 flags