Merge branch 'config-file-check'

README.md

@@ -2,7 +2,7 @@
 
 Update nameserver entrys at inwx with the current WAN IP (DynDNS)
 
-nsbackup is a bash script that uses curl and the inwx API to update nameserver entrys at inwx with the current WAN IP. It supports IPv4 and IPv6.
+nsbackup is a shell script that uses curl and the inwx API to update nameserver entrys at inwx with the current WAN IP. It supports IPv4 and IPv6.
 
 Place your config files in the _nsupdate.d_ folder.
 
@@ -14,6 +14,12 @@ At least one config file needs to exist ending with _.config_. A "sample.config.
 
 ## Changelog
 
+**2015-07-22**
+
+- Changed the way how the existence of config files is checked
+- Updated the sample config file to reflect new options from the last updates
+- The script is reported to work in csh and sh too
+
 **2015-06-30**
 
 - Fixed the check for config files. Can now handle more than one file

nsupdate.d/sample.config.dist

@@ -5,9 +5,16 @@ IP_CHECK_SITE="https://ip.dblx.io"
 
 # use drill instead of nslookup for hostname lookup
 USE_DRILL="YES"
+
+# Use IPv6 connection
 IPV6="NO"
+
+# Update an MX record
 MX="NO"
 
+# Suppress all messages
+SILENT=NO
+
 # Login credentials for the inwx admin interface
 INWX_USER="USERNAME"
 INWX_PASS='PASSWORD'

nsupdate.sh

@@ -24,23 +24,17 @@
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-##################
+# check required tools
-# check required #
-##################
 command -v curl >/dev/null 2>&1 || { echo >&2 "I require curl but it's not installed. Note: all needed items are listed in the README.md file."; exit 1; }
 command -v awk >/dev/null 2>&1 || { echo >&2 "I require awk but it's not installed. Note: all needed items are listed in the README.md file."; exit 1; }
 command -v drill >/dev/null 2>&1 || command -v nslookup >/dev/null 2>&1 || { echo >&2 "I need drill or nslookup installed. Note: all needed items are listed in the README.md file."; exit 1; }
-##################
-# check config   #
-##################
-configfiles=$(shopt -s nullglob dotglob; echo nsupdate.d/*.config)
-if (( ! ${#configfiles} ));then
-    echo "There does not seem to be any config file available." ; exit 1;
-fi
-##################
 
 LOG=$0.log
 SILENT=NO
+
+# Check if there are any usable config files
+if ls $(dirname $0)/nsupdate.d/*.config 1> /dev/null 2>&1; then
+   
    # Loop through configs
    for f in $(dirname $0)/nsupdate.d/*.config
    do
@@ -137,3 +131,6 @@ do
       unset INWX_USER
       unset INWX_DOMAIN_ID
    done
+else
+   echo "There does not seem to be any config file available in $(dirname $0)/nsupdate.d/." ; exit 1;
+fi