!13 fix sz < 0

From: @tong_1001 
Reviewed-by: @xiezhipeng1 
Signed-off-by: @xiezhipeng1

libtar.spec

@@ -1,6 +1,6 @@
 Name:           libtar
 Version:        1.2.20
-Release:        21
+Release:        22
 Summary:        Library for manipulating tar files from within C programs.
 License:        BSD
 URL:            http://repo.or.cz/libtar.git
@@ -71,6 +71,9 @@ rm $RPM_BUILD_ROOT%{_libdir}/*.la
 %{_mandir}/man3/*.3*
 
 %changelog
+* Sat May 07 2022 shixuantong <shixuantong@h-partners.com> - 1.2.20-22
+- fix sz < 0
+
 * Wed Apr 06 2022 shixuantong <shixuantong@h-partners.com> - 1.2.20-21
 - Ensure that sz is greater than 0.
 

openEuler-Ensure-that-sz-is-greater-than-0.patch

@@ -15,7 +15,7 @@ index 092bc28..80b41ac 100644
  	if (TH_ISLONGLINK(t))
  	{
  		sz = th_get_size(t);
-+                if (sz <= 0)
++		if ((int)sz <= 0)
 +		{
 +			errno = EINVAL;
 +			return -1;
@@ -27,7 +27,7 @@ index 092bc28..80b41ac 100644
  	if (TH_ISLONGNAME(t))
  	{
  		sz = th_get_size(t);
-+                if (sz <= 0)
++		if ((int)sz <= 0)
 +		{
 +			errno = EINVAL;
 +			return -1;