added bandwidth limitation feature

sshbackup

@@ -20,6 +20,8 @@ localcmd="/usr/bin/rsync"
 versions=999
 config=0
 sshkey=0
+bandwidth=0
+limit=0
 list=0
 options=$*
 
@@ -46,6 +48,7 @@ usage()
     echo "   -l, --list <file>         list of sources and destinations"
     echo "   -c, --config <file>       alternate config file [~/.sshbackup]"
     echo "   -s, --sshkey <file>       alternate sshkey [~/.ssh/id_rsa]"
+    echo "   -b, --bandwidth <kbps>    bandwidth limit in kbit/s"
     echo
 }
 
@@ -156,6 +159,12 @@ sshbackup()
         cmdopt="$cmdopt --link-dest=$destpath/1"
     fi
 
+    #bandwidth limit
+    if [ $limit -gt 0 ]; then
+        limit=$((limit/8))
+        cmdopt="$cmdopt --bwlimit=$limit"
+    fi
+
     #run rsync
     $localcmd $cmdopt -e "ssh -q -i $sshkeyfile" --rsync-path="$remotecmd" $sourcepath $destpath/0
     if [ $? -ne "0" ]; then
@@ -205,6 +214,9 @@ for option in $options; do
         -s|--sshkey)
             sshkey=1
             ;;
+        -b|--bandwidth)
+            bandwidth=1
+            ;;
         *)
             if [ $config -eq 1 ]; then
                 if [ -r "$option" ]; then
@@ -222,6 +234,13 @@ for option in $options; do
                     echo "aborting mission. cannot read sshkeyfile. [$option]"
                     exit 1
                 fi
+            elif [ $bandwidth -eq 1 ]; then
+                if [ -z "${option//[0-9]/}" ]; then
+                    limit=$option
+                else
+                    echo "aborting mission. unknown bandwidth limit given. [$option]"
+                    exit 1
+                fi
             elif [ $list -eq 1 ]; then
                 if [ -r $option ]; then
                     listfile=$option