logrotate: Support system dates back to the year 1970

backport commit bdbfea3 from logrotate upstream.

(From OE-Core rev: ae87a0967d687cf9e308b22b35facb0b38a9141a)

Signed-off-by: Zhenbo Gao <zhenbo.gao@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/logrotate/logrotate/0001-Support-system-dates-back-to-the-year-1970.patch

@@ -0,0 +1,27 @@
+Support system dates back to the year 1970
+
+The system time on Linux can be set back as far as 1970 (the epoch time).
+Currently logrotate stops working correctly if the time goes before 1996.
+This value (1996) appears to have been hard coded since the code was written
+back in 1996. Testing and code analysis shows this can simply be modified
+to 1970.
+
+The patch is provided by Matt Bennett <matt.bennett@alliedtelesis.co.nz>
+
+Upstream-Status: Backport +
+Signed-off-by: Zhenbo Gao <zhenbo.gao@windriver.com>
+
+diff --git a/logrotate.c.orig b/logrotate.c
+index cf8bf2c..a7dadfb 100644
+--- a/logrotate.c.orig
++++ b/logrotate.c
+@@ -2381,7 +2381,7 @@ static int readState(char *stateFilename)
+ 	}
+ 
+ 	/* Hack to hide earlier bug */
+-	if ((year != 1900) && (year < 1996 || year > 2100)) {
++	if ((year != 1900) && (year < 1970 || year > 2100)) {
+ 	    message(MESS_ERROR,
+ 		    "bad year %d for file %s in state file %s\n", year,
+ 		    argv[0], stateFilename);
+

meta/recipes-extended/logrotate/logrotate_3.9.1.bb

@@ -23,6 +23,7 @@ SRC_URI = "https://github.com/${BPN}/${BPN}/archive/r3-9-1.tar.gz \
            file://act-as-mv-when-rotate.patch \
            file://update-the-manual.patch \
            file://disable-check-different-filesystems.patch \
+           file://0001-Support-system-dates-back-to-the-year-1970.patch \
             "
 
 SRC_URI[md5sum] = "8572b7c2cf9ade09a8a8e10098500fb3"