shadow-utils: Create standard set of configuration files

Previously we copied the default configuration from the upstream
package and modified that. Unfortunately a patch and a sed command
changed the file which resulted in unwanted changes.

This patch removes the patch and sed command and adds a new set
of configuration files that just need to be copied to the system.

Fixes #11195

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

lfs/shadow

@@ -71,7 +71,6 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
 	@$(PREBUILD)
 	@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar axf $(DIR_DL)/$(DL_FILE)
 	cd $(DIR_APP) && patch -Np1 -i $(DIR_SRC)/src/patches/shadow-4.2.1-suppress_installation_of_groups.patch
-	cd $(DIR_APP) && patch -Np1 -i $(DIR_SRC)/src/patches/shadow-4.2.1-SHA512_password_hashing.patch
 	cd $(DIR_APP) && ./configure --libdir=/lib	\
 				--sysconfdir=/etc	\
 				--enable-shared		\
@@ -80,12 +79,15 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
 				--with-group-name-max-length=32
 	cd $(DIR_APP) && make $(MAKETUNING)
 	cd $(DIR_APP) && make install
-	cd $(DIR_APP) && cp -v etc/{limits,login.access} /etc
-	cd $(DIR_APP) && sed -e's@#MD5_CRYPT_ENAB.no@MD5_CRYPT_ENAB yes@' \
-				-e 's@/var/spool/mail@/var/mail@' \
-				etc/login.defs > /etc/login.defs
+
 	mv -v /usr/bin/passwd /bin
 	ln -sfv ../../lib/libshadow.so.0 /usr/lib/libshadow.so
+
+	# Install configuration
+	install -m 644 $(DIR_SRC)/config/shadow/limits /etc/limits
+	install -m 644 $(DIR_SRC)/config/shadow/login.access /etc/login.access
+	install -m 644 $(DIR_SRC)/config/shadow/login.defs /etc/login.defs
+
 	touch /etc/shadow
 	chmod 600 /etc/shadow
 	pwconv