Check for test and netstat before trying to use them

These may not be available on all systems. Work around it best
we can. In the case of netstat this can be replaced by using
/dev/urandom or /dev/random instead and piping it through tr
to produce only ASCII strings.

1 files changed, 10 insertions, 2 deletions

diff --git a/gencert.in b/gencert.in
index e437a60..490c396 100755
--- a/gencert.in
+++ b/gencert.in
@@ -39,7 +39,11 @@ getFQDN() {
                 return
         fi
         defhost=`hostname` 
-        hosthost=`host $defhost | grep -v "not found" | awk '{print $1}'`
+        if [ -e /usr/bin/host -o -e /bin/host ]; then
+            hosthost=`host $defhost | grep -v "not found" | awk '{print $1}'`
+        else
+            hosthost=''
+        fi
         for host in $defhost $hosthost `hostname -f` `hostname -a` ; do
                 len=`echo $host | wc -c` 
                 if [ $len -gt $max ]; then
@@ -124,7 +128,11 @@ function generate_server_sni_cert {
     echo "#####################################################################"
     echo "Generating $NICKNAME server certificate request"
     echo "#####################################################################"
-    (ps -elf; date; netstat -a) > $DEST/noise
+    if [ -e /dev/urandom ]; then
+        (ps -elf; date; dd if=/dev/urandom count=1 bs=1024 2>/dev/null| tr -dc 'a-zA-Z0-9') > $DEST/noise
+    else
+        (ps -elf; date; dd if=/dev/random count=1 bs=128 2>/dev/null| tr -dc 'a-zA-Z0-9') > $DEST/noise
+    fi
     $CERTUTIL -R -d $DBDIR \
                 -s "$SERVER_DN" \
                 -o $DEST/tmpcertreq \