Changes made in this version:

* Split into separate client and server packages
  * Cleaned up init file
  * Updated usher to support chroot into TARGET

SNAP/usher

@@ -5,29 +5,50 @@ case $1 in
     exit 0
     ;;
   postinst)
-    if ! getent group sshd 2>&1 > /dev/null; then
-      if groupadd -g 50 sshd; then
-        echo 'Created group sshd'
-      else
-        echo 'Failed to create group sshd!'
-        exit 1
+    if [[ ${TARGET} ]]; then
+      if ! chroot ${TARGET} 'getent group sshd 2>&1' > /dev/null; then
+        if chroot ${TARGET} 'groupadd -g 50 sshd'; then
+          echo 'Created group sshd'
+        else
+          echo 'Failed to create group sshd!'
+          exit 1
+        fi
       fi
-    fi
-
-    if ! getent passwd sshd 2>&1 > /dev/null; then
-      if useradd -c 'sshd PrivSep' -d /var/lib/sshd -g sshd \
-      -s /bin/false -u 50 sshd; then
-        echo 'Created user sshd'
-      else
-        echo 'Failed to create user sshd!'
-        exit 1
+      if ! chroot ${TARGET} 'getent passwd sshd 2>&1 > /dev/null'; then
+        if chroot ${TARGET} 'useradd -c "sshd PrivSep" \
+        -d /var/lib/sshd -g sshd -s /bin/false -u 50 sshd'; then
+          echo 'Created user sshd'
+        else
+          echo 'Failed to create user sshd!'
+          exit 1
+        fi
       fi
-    fi
 
-    chown root:root /var/run/sshd
+      if [ ! -f ${TARGET}/etc/ssh/ssh_host_rsa_key ]; then
+        chroot ${TARGET} 'ssh-keygen -A'
+      fi
+    else
+      if ! getent group sshd 2>&1 > /dev/null; then
+        if groupadd -g 50 sshd; then
+          echo 'Created group sshd'
+        else
+          echo 'Failed to create group sshd!'
+          exit 1
+        fi
+      fi
+      if ! getent passwd sshd 2>&1 > /dev/null; then
+        if useradd -c 'sshd PrivSep' -d /var/lib/sshd -g sshd \
+        -s /bin/false -u 50 sshd; then
+          echo 'Created user sshd'
+        else
+          echo 'Failed to create user sshd!'
+          exit 1
+        fi
+      fi
 
-    if [ ! -f /etc/ssh/ssh_host_rsa_key ]; then
-      ssh-keygen -A
+      if [ ! -f /etc/ssh/ssh_host_rsa_key ]; then
+        ssh-keygen -A
+      fi
     fi
     ;;
   prerm)