1 files changed, 33 insertions, 0 deletions
diff --git a/Functions/Zftp/zfautocheck b/Functions/Zftp/zfautocheck
new file mode 100644
index 000000000..abb994061
--- /dev/null
+++ b/Functions/Zftp/zfautocheck
@@ -0,0 +1,33 @@
+# function zfautocheck {
+# This function is used to implement auto-open behaviour.
+#
+# With first argument including n, don't change to the old directory; else do.
+#
+# Set do_close to 1 if the connection was not previously open, 0 otherwise
+# With first arguemnt including d, don't set do_close to 1.  Broadly
+# speaking, we use this mechanism to shut the connection after use
+# if the connection had been explicitly closed (i.e. didn't time out,
+# which zftp test investigates) and we are not using a directory
+# command, which implies we are looking for something so should stay open
+# for it.
+
+# Remember the old session:  zflastsession will be overwritten by
+# a successful open.
+local lastsession=$zflastsession
+
+if [[ -z $ZFTP_HOST ]]; then
+  zfopen || return 1
+  [[ $1 = *d* ]] || do_close=1
+elif zftp test 2>/dev/null; then
+  return 0
+else
+  zfopen || return 1
+fi
+
+if [[ $1 = *n* ]]; then
+  return 0
+elif [[ -n $lastsession && $ZFTP_HOST = ${lastsession%%:*} ]]; then
+  zfcd ${lastsession#*:}
+fi
+
+# }