Initial commit

tools/sed/Makefile

@@ -0,0 +1,50 @@
+# 
+# Copyright (C) 2006-2013 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=sed
+PKG_VERSION:=4.9
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=@GNU/$(PKG_NAME)
+PKG_HASH:=d1478a18f033a73ac16822901f6533d30b6be561bcbce46ffd7abce93602282e
+PKG_CPE_ID:=cpe:/a:gnu:sed
+
+export SED:=
+
+HOST_BUILD_PARALLEL:=1
+
+HOSTCC := $(HOSTCC_NOCACHE)
+HOSTCXX := $(HOSTCXX_NOCACHE)
+
+include $(INCLUDE_DIR)/host-build.mk
+
+HOST_CONFIGURE_ARGS += \
+	--disable-acl \
+	--disable-nls \
+	--enable-threads=posix \
+	--disable-i18n \
+	--without-selinux
+
+HOST_CONFIGURE_VARS += \
+	ac_cv_search_setfilecon=no \
+	ac_cv_header_selinux_context_h=no \
+	ac_cv_header_selinux_selinux_h=no \
+
+define Host/Compile
+	+$(MAKE) $(HOST_JOBS) -C $(HOST_BUILD_DIR) SHELL="$(BASH)"
+endef
+
+define Host/Install
+	$(INSTALL_BIN) $(HOST_BUILD_DIR)/sed/sed $(STAGING_DIR_HOST)/bin/
+endef
+
+define Host/Clean
+	rm -f $(STAGING_DIR_HOST)/bin/sed
+endef
+
+$(eval $(call HostBuild))

tools/sed/patches/001-sed-fix-handling-of-symlinks-pointing-to-path-with-1.patch

@@ -0,0 +1,47 @@
+From 8f600f2df293d539e9e9137f6f82faa1633b97c1 Mon Sep 17 00:00:00 2001
+From: Paul Eggert <eggert@cs.ucla.edu>
+Date: Sat, 17 Dec 2022 20:56:29 -0800
+Subject: [PATCH] sed: fix symlink bufsize readlink check
+
+Problem reported by Hauke Mehrtens.
+* sed/utils.c (follow_symlink): Fix typo when checking size of
+second and later symlink, when that symlink is so large that it
+does not fit into the buffer.  Although the bug is not a buffer
+overflow, it does cause sed to mishandle the symlink.
+* testsuite/follow-symlinks.sh: Test for the bug.
+---
+ sed/utils.c                  |  2 +-
+ testsuite/follow-symlinks.sh | 13 +++++++++++++
+ 3 files changed, 18 insertions(+), 1 deletion(-)
+
+--- a/sed/utils.c
++++ b/sed/utils.c
+@@ -345,7 +345,7 @@ follow_symlink (const char *fname)
+       while ((linklen = (buf_used < buf_size
+                          ? readlink (fn, buf + buf_used, buf_size - buf_used)
+                          : 0))
+-             == buf_size)
++             == buf_size - buf_used)
+         {
+           buf = xpalloc (buf, &buf_size, 1, SSIZE_IDX_MAX, 1);
+           if (num_links)
+--- a/testsuite/follow-symlinks.sh
++++ b/testsuite/follow-symlinks.sh
+@@ -73,4 +73,17 @@ compare_ exp-la-abs out-la-abs || fail=1
+ ln -s la-loop la-loop || framework_failure_
+ sed --follow-symlinks -i s/a/b/ la-loop && fail=1
+ 
++# symlink of length 128
++long=d/
++for i in 2 3 4 5 6 7; do
++  long=$long$long
++done
++dir=${long%/d/}
++file=$dir/xx
++mkdir -p $dir &&
++echo x >$file &&
++ln -s $file yy &&
++ln -s yy xx || framework_failure_
++sed -i --follow-symlinks s/x/y/ xx || fail=1
++
+ Exit $fail