!57 Fix potential integer overflow in parsednssl

From: @yinbin6 
Reviewed-by: @jiangheng12 
Signed-off-by: @jiangheng12

0001-Update-AUTHORS.patch

@@ -0,0 +1,21 @@
+From 294417194dcbd67cad483e0239a7a4ee0033b316 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?R=C3=A9mi=20Denis-Courmont?= <remi@remlab.net>
+Date: Tue, 14 Sep 2021 21:48:16 +0300
+Subject: [PATCH] Update AUTHORS
+
+---
+ AUTHORS | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/AUTHORS b/AUTHORS
+index b95c198..5a0ae6d 100644
+--- a/AUTHORS
++++ b/AUTHORS
+@@ -2,3 +2,4 @@ Rémi Denis-Courmont <remi (at) remlab (dot) net>
+ Pierre Ynard <linkfanel (at) yahoo (dot) fr>
+ Yin, Kwong-Sang
+ Fred L. Templim
++William A. Kennington III
+-- 
+2.33.0
+

backport-Fix-potential-integer-overflow-in-parsednssl.patch

@@ -0,0 +1,34 @@
+From fd9549c0fb0e1916ca553a1abbeebd48f608955d Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?David=20H=C3=A4rdeman?= <david@hardeman.nu>
+Date: Sun, 11 Feb 2024 18:29:15 +0100
+Subject: [PATCH] Fix potential integer overflow in parsednssl()
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+optlen is a uint8_t because the length field in the RA header is one octet
+(representing the length in units of 8 octets). Later optlen is multiplied by 8
+to represent the length in bytes, meaning that the variable can overflow.
+
+Signed-off-by: David Härdeman <david@hardeman.nu>
+Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>
+---
+ src/ndisc.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/ndisc.c b/src/ndisc.c
+index 1640794..b190b18 100644
+--- a/src/ndisc.c
++++ b/src/ndisc.c
+@@ -451,7 +451,7 @@ static int
+ parsednssl (const uint8_t *opt)
+ {
+ 	const uint8_t *base;
+-	uint8_t optlen = opt[1];
++	uint16_t optlen = opt[1];
+ 	if (optlen < 2)
+ 		return -1;
+ 
+-- 
+2.34.1
+

ndisc6.spec

@@ -0,0 +1,64 @@
+Name:		ndisc6
+Version:	1.0.4
+Release:	5
+Summary:	IPv6 diagnostic tools
+License:	GPLv2 or GPLv3
+URL:		http://www.remlab.net/ndisc6
+Source0:	http://www.remlab.net/files/ndisc6/%{name}-%{version}.tar.bz2
+
+Patch1:         0001-Update-AUTHORS.patch
+Patch2:         backport-Fix-potential-integer-overflow-in-parsednssl.patch
+
+BuildRequires:	gcc perl-generators
+Requires:   ndisc6-help
+
+%description
+NDisc6 is a small collection of useful tools for IPv6 networking.
+It includes the follwing programs :
+ - ndisc6: ICMPv6 Neighbor Discovery tool
+ - rdisc6: ICMPv6 Router Discovery tool
+ - tcptraceroute6: lightweight IPv6 tcptraceroute
+ - traceroute6: IPv6 traceroute
+ - rdnssd: Recursive DNS Servers discovery Daemon
+
+%package_help
+
+%prep
+%autosetup -n %{name}-%{version} -p1
+
+%build
+%configure --disable-suid-install
+%make_build
+
+%install
+%make_install
+
+%files
+%defattr(-,root,root)
+%doc AUTHORS README 
+%license COPYING 
+%{_sysconfdir}/rdnssd
+%{_bindir}/*
+%{_sbindir}/*
+%{_datadir}/locale/*
+
+%files         help
+%defattr(-,root,root)
+%doc ChangeLog NEWS
+%{_mandir}/man*
+
+%changelog
+* Tue Jan 7 2025 yinbin <yinbin8@huawei..com> - 1.0.4-5
+- Fix potential integer overflow in parsednssl
+
+* Sat Jan 7 2023 caofei <caofei@xfusion.com> - 1.0.4-4
+- Update AUTHORS
+
+* Tue Dec 15 2020 orange-snn <songnannan2@huawei.com> - 1.0.4-3
+- move ndisc.spec to ndisc6.spec
+
+* Fri Nov 6 2020 jialei <jialei17@huawei.com> - 1.0.4-2
+- add help for Requires
+
+* Thu Jan 7 2018 openEuler Buildteam <buildteam@openeuler.org> - 1.0.4-1
+- Package init