From d74c490fb86b68fc628c4908b38d4082c0a5182d Mon Sep 17 00:00:00 2001
From: jvdias <jvdias@fedoraproject.org>
Date: Tue, 18 Apr 2006 23:54:14 +0000
Subject: [PATCH] fix bug 188382; deal with redundant .rpmsave links; prevent
 redundant     backups

---
 bind-chroot-admin.in | 64 +++++++++++++++++++++++++++-----------------
 1 file changed, 40 insertions(+), 24 deletions(-)

diff --git a/bind-chroot-admin.in b/bind-chroot-admin.in
index 7cedb82..cf92e96 100644
--- a/bind-chroot-admin.in
+++ b/bind-chroot-admin.in
@@ -67,7 +67,10 @@ function check_dirs()
     if [ -L "$BIND_CHROOT_PREFIX" ]; then
 	BIND_CHROOT_PREFIX=`/usr/bin/readlink "$BIND_CHROOT_PREFIX"`;
     fi
-
+    if [ -e /etc/sysconfig/named ]; then
+	/bin/chown root:named /etc/sysconfig/named;
+	/bin/chmod 0640 /etc/sysconfig/named;
+    fi
     /bin/mkdir -p ${BIND_DIR}/{slaves,data};
     /bin/chown root:named ${BIND_DIR};
     /bin/chown named:named ${BIND_DIR}/{slaves,data};
@@ -79,12 +82,13 @@ function check_dirs()
     /bin/chmod 750 ${BIND_CHROOT_PREFIX}/{,etc,dev,var,var/{run,named/}};
     /bin/chown named:named ${BIND_CHROOT_PREFIX}/var/{run/named,named/{data,slaves}};
     /bin/chmod 770 ${BIND_CHROOT_PREFIX}/var/{run/named,named/{slaves,data}};        
-
+    
     [ ! -e "${BIND_CHROOT_PREFIX}/dev/random" ] && /bin/mknod "${BIND_CHROOT_PREFIX}/dev/random" c 1 8 
     [ ! -e "${BIND_CHROOT_PREFIX}/dev/zero" ] && /bin/mknod "${BIND_CHROOT_PREFIX}/dev/zero" c 1 5
     [ ! -e "${BIND_CHROOT_PREFIX}/dev/null" ] && /bin/mknod "${BIND_CHROOT_PREFIX}/dev/null" c 1 3
     [ ! -e "${BIND_CHROOT_PREFIX}/etc/localtime" ] &&  [ -e /etc/localtime ] && /bin/cp -fp /etc/localtime "${BIND_CHROOT_PREFIX}/etc/localtime";
-    chmod 666 "${BIND_CHROOT_PREFIX}"/dev/{random,null,zero};
+    chown root:named "${BIND_CHROOT_PREFIX}"/dev/{random,null,zero};
+    chmod 660 "${BIND_CHROOT_PREFIX}"/dev/{random,null,zero};
     if [ -d /selinux ] && [ -e /selinux/enforce ] && [ -x /usr/bin/chcon ]; then       
        for dev in random zero null; do
 	   /usr/bin/chcon --reference=/dev/$dev ${BIND_CHROOT_PREFIX}/dev/$dev;
@@ -121,7 +125,7 @@ function replace_with_link()
     fi
     if [ -e "$dst" ]; then
        if [ ! -L "$dst" ]; then
-	  if [ ! -s "$dst" ]; then
+	  if [ ! -s "$dst" ] || /usr/bin/cmp "$dst" "$src" > /dev/null 2>&1; then
 	     /bin/rm -f "$dst";
 	  else	     
 	     if [ "$src" -nt "$dst" ] || [ ! "$dst" -nt "$src" ] ; then
@@ -135,13 +139,15 @@ function replace_with_link()
           dstlnk=`/usr/bin/readlink "$dst"`
 	  if [ "$dstlnk" != $src ]; then
 	     /bin/rm -f $dst;
-	     if [ "$dstlnk" != "$dst" ] && [ -s $dstlnk ]; then
-		 if [ "$dstlnk" -nt "$src" ] || [ ! "$dstlnk" -nt "$src" ] ; then		     
-		     /bin/cp -fp "$dstlnk" "$dst".`/bin/date +'%Y-%m-%d_%H-%M-%S.%N'`;
-		 else
-		     /bin/mv "$src" "$src".`/bin/date +'%Y-%m-%d_%H-%M-%S.%N'`;
-		     /bin/cp -fp "$dstlnk" "$src";
-		 fi;
+	     if ! /usr/bin/cmp "$dstlnk" "$src" > /dev/null 2>&1; then
+		if [ "$dstlnk" != "$dst" ] && [ -s $dstlnk ]; then
+		   if [ "$dstlnk" -nt "$src" ] || [ ! "$dstlnk" -nt "$src" ] ; then		     
+		      /bin/cp -fp "$dstlnk" "$dst".`/bin/date +'%Y-%m-%d_%H-%M-%S.%N'`;
+		   else
+		      /bin/mv "$src" "$src".`/bin/date +'%Y-%m-%d_%H-%M-%S.%N'`;
+		      /bin/cp -fp "$dstlnk" "$src";
+		  fi;
+	        fi;
 	     fi;
 	  else
 	     return 0;
@@ -207,6 +213,11 @@ function sync_files()
 	    replace_with_link ${BIND_CHROOT_PREFIX}/$f $f;
 	    [ ! -e $changed ] && touch $changed;
 	done;
+	/usr/bin/find /etc/{named.*,rndc.*}.rpmsave ${BIND_DIR}/*.rpmsave  -maxdepth 0 -type l 2>/dev/null |
+	while read f;
+	do
+	    /bin/rm -f $f >/dev/null 2>&1;
+	done
 	pfx=${BIND_CHROOT_PREFIX}
     else              # chroot is disabled	
 	/usr/bin/find /var/named/chroot/{etc/{named.*,rndc.*},var/named{/*,/data/*,/slaves/*}} -maxdepth 0 |
@@ -225,27 +236,32 @@ function sync_files()
 };'     > /etc/rndc.key;
     elif /bin/egrep -q '@KEY@' /etc/rndc.key; then
 	/bin/sed -i -e 's^@KEY@^'`/usr/sbin/dns-keygen`'^' /etc/rndc.key ;
-    fi
-    chown root:named ${pfx}/var/named/* >/dev/null 2>&1;
+    fi    
+    chown -h root:named /var/named/* >/dev/null 2>&1;
+    chown -h root:named ${BIND_CHROOT_PREFIX}/var/named/* >/dev/null 2>&1;
+    chown -h root:named /etc/{named,rndc}.* >/dev/null 2>&1;
+    chown -h root:named ${BIND_CHROOT_PREFIX}/etc/{named,rndc}.* >/dev/null 2>&1;
     chmod 750 ${pfx}/var/named  >/dev/null 2>&1;
     chmod 640 ${pfx}/var/named/* >/dev/null 2>&1;
     chmod 750 ${pfx}/var/named/*/. >/dev/null 2>&1;
-    chown named:named ${pfx}/var/named/{data{,/*},slaves{,*/}} >/dev/null 2>&1;
+    chown -h named:named /var/named/{data{,/*},slaves{,*/}} >/dev/null 2>&1;
+    chown -h named:named ${BIND_CHROOT_PREFIX}/var/named/{data{,/*},slaves{,*/}} >/dev/null 2>&1;
     chmod 770 ${pfx}/var/named/{data,slaves} >/dev/null 2>&1;
     chmod 660 ${pfx}/var/named/{data/*,slaves/*} >/dev/null 2>&1;
     chmod 770 ${pfx}/var/named/{data/*/.,slaves/*/.} >/dev/null 2>&1;
     if [ -e $changed ]; then
 	if [ -e /selinux/enforce ] && [ -x /sbin/restorecon ]; then
-	    if [ -n "$pfx" ]; then
-		/sbin/restorecon -R $pfx/etc $pfx/var/named $pfx/var/run/named >/dev/null 2>&1;
-		if [ -e $pfx/etc/localtime ] && [ -e /etc/localtime ] ; then 
-		   /usr/bin/chcon --reference=/etc/localtime $pfx/etc/localtime >/dev/null 2>&1;
-		fi;		
-	    else
-		/sbin/restorecon /etc/{named,rndc}.* >/dev/null 2>&1;
-		/usr/bin/chcon --reference=/etc/named.conf /etc/named.* >/dev/null 2>&1;
-		/sbin/restorecon -e /var/named/chroot /var/named{/,/data/,/slaves/}* >/dev/null 2>&1;
-	    fi;
+	   /sbin/restorecon -R ${BIND_CHROOT_PREFIX}/etc ${BIND_CHROOT_PREFIX}/var/named ${BIND_CHROOT_PREFIX}/var/run/named >/dev/null 2>&1;
+	   if [ -e ${BIND_CHROOT_PREFIX}/etc/localtime ] && [ -e /etc/localtime ] ; then 
+	      /usr/bin/chcon --reference=/etc/localtime ${BIND_CHROOT_PREFIX}/etc/localtime >/dev/null 2>&1;
+	   fi;		
+	   /usr/bin/chcon -h --reference=/etc/named.conf /etc/named.*    >/dev/null 2>&1;
+	   /usr/bin/chcon -h --reference=/etc/rndc.key   /etc/rndc.key   >/dev/null 2>&1;
+	   /usr/bin/chcon -h --reference=/etc/rndc.conf  /etc/rndc.conf  >/dev/null 2>&1;
+	   /usr/bin/chcon -h --reference=/var/named     /var/named{/,/*} >/dev/null 2>&1;
+	   /usr/bin/chcon -h --reference=/var/named/slaves /var/named/{slaves,data}{/,/*} >/dev/null 2>&1;
+	   /sbin/restorecon /var/named/named.ca ${BIND_CHROOT_PREFIX}/var/named/named.ca  >/dev/null 2>&1;
+	   /usr/bin/chcon -h --reference=${BIND_CHROOT_PREFIX}/var/named/named.ca /var/named/named.ca >/dev/null 2>&1;
 	fi;
 	/sbin/service named condrestart
 	rm -f $changed;