Replace -S in ssh/sftp cmd's with ssh options

The sftp commands broke if the flag -S was used to specify the path to the master-socket. For consistency reasons the occurrences in the creation of the sockets were replaced too.

Change-Id: I412b6343c6ffd74208f18517a28dcba7cd2a58bb

handlers/borg.helper.in

@@ -233,7 +233,7 @@ do_borg_ssh_con() {
    if [ "$borg_protocol" = "sftp" ]; then
 
       # initial creation of a temporary directory and variables for the authorized_keys and the
-      # master ssh conection
+      # master ssh connection
       SCRATCH_DIR=$(mktemp --dry-run borg-helper-temp.XXXXXXXXXX)
       if test $? -ne 0 || test "x$SCRATCH_DIR" = "x" ; then
          printf "%s ERROR: mktemp failed\n" >&2
@@ -262,8 +262,8 @@ do_borg_ssh_con() {
       else
 
          # open a ssh tunnel to pipe sftp traffic through and prepare cleaning up
-         ssh -p ${borg_port} -f -N -M -o ControlMaster=auto -S ${SHARED_CONN} ${borg_user}@${borg_host}
-         CLEANUP="ssh -S ${SHARED_CONN} -o ControlMaster=auto -O exit 'ignored' >/dev/null 2>&1 ; $SCRATCH_CLEANUP"
+         ssh -p ${borg_port} -f -N -M -o ControlMaster=auto -o "ControlPath=${SHARED_CONN}" ${borg_user}@${borg_host}
+         CLEANUP="ssh -o "ControlPath=${SHARED_CONN}" -o ControlMaster=auto -O exit 'ignored' >/dev/null 2>&1 ; $SCRATCH_CLEANUP"
          trap "$CLEANUP" EXIT TERM INT QUIT
 
          # use sftp with -b - to get the cmd's to execute on the remote machine via stdin
@@ -307,14 +307,14 @@ EOF
    # test the read/write access on the remote repository for sftp
    if [ "$borg_protocol" == "sftp" ]; then
      if [ ! -e "$SHARED_CONN" ]; then
-         ssh -p ${borg_port} -f -N -M -o ControlMaster=auto -S ${SHARED_CONN} ${borg_user}@${borg_host}
-         SSH_CLEANUP="ssh -S ${SHARED_CONN} -o ControlMaster=auto -O exit 'ignored' >/dev/null 2>&1"
+         ssh -p ${borg_port} -f -N -M -o ControlMaster=auto -o "ControlPath=${SHARED_CONN}" ${borg_user}@${borg_host}
+         SSH_CLEANUP="ssh -o "ControlPath=${SHARED_CONN}" -o ControlMaster=auto -O exit 'ignored' >/dev/null 2>&1"
          trap "$SSH_CLEANUP" EXIT TERM INT QUIT
      fi
        echo "ls $borg_directory" | sftp -b - -o "ControlMaster=auto" -o -S $SHARED_CONN ${borg_user}@${borg_host}
        if [ $? -eq 0 ]; then
            touch /tmp/foo.bar
-           output=$(echo "put /tmp/foo.bar ${borg_directory}" | sftp -o "ControlMaster=auto" -S $SHARED_CONN ${borg_user}@${borg_host})
+           output=$(echo "put /tmp/foo.bar ${borg_directory}" | sftp -o "ControlMaster=auto" -o "ControlPath=${SHARED_CONN}" ${borg_user}@${borg_host})
            if [ $? -eq 0 ]; then
               echo "${output}" | grep -E "remote open.+Permission denied"
                  if [ $? -eq 0 ]; then
@@ -327,19 +327,19 @@ EOF
              msgBox "The sftp connection couldn't be established."
              result=255
            fi
-           echo "rm ${borg_directory}/foo.bar" | sftp -o "ControlMaster=auto" -S $SHARED_CONN ${borg_user}@${borg_host}
+           echo "rm ${borg_directory}/foo.bar" | sftp -o "ControlMaster=auto" -o "ControlPath=${SHARED_CONN}" ${borg_user}@${borg_host}
        else
          booleanBox "Remote directory does not exist" "The destination backup directory does not exist, do you want me to create it for you?"
          if [ $? -eq 0 ]; then
-             echo "exit" | sftp -b - -o "ControlMaster=auto" -S $SHARED_CONN ${borg_user}@${borg_host}
+             echo "exit" | sftp -b - -o "ControlMaster=auto" -o "ControlPath=${SHARED_CONN}" ${borg_user}@${borg_host}
              if [ $? -eq 255 ]; then
                  result=255
              else
-               echo "mkdir ${borg_directory}" | sftp -b - -o "ControlMaster=auto" -S $SHARED_CONN ${borg_user}@${borg_host}
+               echo "mkdir ${borg_directory}" | sftp -b - -o "ControlMaster=auto" -o "ControlPath=${SHARED_CONN}" ${borg_user}@${borg_host}
                if [ $? -eq 0 ]; then
                  result=0
                else
-                 output=$(echo "mkdir ${borg_directory}" | sftp -b - -o "ControlMaster=auto" -S $SHARED_CONN ${borg_user}@${borg_host})
+                 output=$(echo "mkdir ${borg_directory}" | sftp -b - -o "ControlMaster=auto" -o "ControlPath=${SHARED_CONN}" ${borg_user}@${borg_host})
                    if echo "$output" | grep "remote open.+Permission denied" ; then
                      result=1
                    fi