Have curl read Authrorizaton header from stdin rather than the command line.

Prevents GoDaddy secret and key from exposure via ps.

There is still an issue if environment variables can be read.

dns_scripts/dns_godaddy

@@ -178,8 +178,6 @@ fi
     echo "`basename $0`: $op $domain $name \"$data\" $ttl" >&2
 
 # Authorization header has secret and key
-# N.B. These will appear in a 'ps' listing since curl only allows
-#      headers to be provided on the command line.
 
 authhdr="Authorization: sso-key $GODADDY_KEY:$GODADDY_SECRET"
 
@@ -199,9 +197,12 @@ Add request to: $url
 $request"
 --------
 EOF
-        result="$(curl -i -s -X PUT -H "$authhdr" \
-                                    -H "Content-Type: application/json" \
-                       -d "$request" "$url")"
+
+        result="$(curl -i -s -X PUT -d "$request" --config - "$url" <<EOF
+                       header = "Content-Type: application/json" 
+                       header = "$authhdr"
+EOF
+)"
         sts=$?
         [ -n "$DEBUG" ] && cat >&2 <<EOF
 
@@ -255,7 +256,10 @@ while [[ "$domain" =~ [^.]+\.[^.]+ ]]; do
     url="$API/$domain/records/TXT"
     [ -n "$DEBUG" ] && echo "Query for TXT records to: $url" >&2
 
-    current="$(curl -i -s -X GET -H "$authhdr" "$url")"
+    current="$(curl -i -s -X GET --config - "$url" <<EOF
+                        header = "$authhdr" 
+EOF
+)"
     sts=$?
     if [ $sts -ne 0 ]; then
         echo "curl error $sts for query" >&2
@@ -357,9 +361,11 @@ $request
 --------
 EOF
 
-result="$(curl -i -s -X PUT -H "$authhdr" \
-                            -H "Content-Type: application/json" \
-               -d "$request" "$url")"
+result="$(curl -i -s -X PUT -d  "$request" --config - "$url" <<EOF
+               header = "Content-Type: application/json"
+               header = "$authhdr"
+EOF
+)"
 sts=$?
 [ -n "$DEBUG" ] && cat >&2 <<EOF