wait 20s for ipv6 to come or remove, modify /etc/hosts

ipv6-tools

@@ -235,12 +235,19 @@ eof
     # wait ipv6
     echo ""
     pb "--"
-    pb "wait for stateless"
+    pb "Wait for stateless"
     for ipv6_prefix in 2001 fd69; do
         pb " - wait for ${ipv6_prefix}: "
         has_waited="false"
         echo -n "     "
+        i=0
         while ! ipadm | grep -w "addrconf" | awk '{ print $5}' | grep -v "^fe80" | grep -q "^${ipv6_prefix}" ; do
+            let i++
+            if [[ $i -gt 20 ]]; then
+                pr "Stateless ipv6 is not comming."
+                pb "Exit !"
+                exit 1
+            fi
             sleep 0.1
             echo -n "."
             has_waited="true"
@@ -256,26 +263,42 @@ eof
     # get the ip from the
     echo ""
     pb "--"
-    pb "find the ip provided by stateless"
+    pb "Find the ip provided by stateless"
     pb " - are we 10 or 129 ip ?"
-    is_129_or_10=$(ipadm | grep -w static | grep v4 | grep -v lo | awk '{ print $5}' | cut -d "." -f1)
+    ipv4=$(ipadm \
+           | grep -w static \
+           | grep v4 \
+           | grep -v lo \
+           | awk '{ print $5}' \
+           | cut -d "/" -f1)
+    is_129_or_10=${ipv4/%\.*/}
     if [[ $is_129_or_10 = "10" ]]; then
         pb "     10, then let's take a fd69 ipv6"
-        ipv6=$(ipadm | grep -w addrconf | grep v6 | grep -v " fe80:" | awk '{ print $5}' | grep "^fd69")
+        ipv6_n_prefix=$(ipadm \
+                       | grep -w addrconf \
+                       | grep v6 \
+                       | grep -v " fe80:" \
+                       | awk '{ print $5}' \
+                       | grep "^fd69")
     elif [[ $is_129_or_10 = "129" ]]; then
         pb "     129, then let's take a 2001 ipv6"
-        ipv6=$(ipadm | grep -w addrconf | grep v6 | grep -v " fe80:" | awk '{ print $5}' | grep "^2001")
+        ipv6_n_prefix=$(ipadm \
+                       | grep -w addrconf \
+                       | grep v6 \
+                       | grep -v " fe80:" \
+                       | awk '{ print $5}' \
+                       | grep "^2001")
     else
         pr "     neither 10 or 129 ips"
         pb "Exit !"
         exit 1
     fi
-    pg " - ipv6 founded : ${ipv6}"
+    pg " - ipv6 founded : ${ipv6_n_prefix}"
     #
     # disable-ndp
     echo ""
     pb "--"
-    pb "disable ndp for all"
+    pb "Disable ndp for all"
     pb "--- start output of set_ndpd_no_all ---"
     set_ndpd_no_all
     pb "--- end output of set_ndpd_no_all ---"
@@ -288,7 +311,14 @@ eof
         pb " - wait for ${ipv6_prefix}: "
         has_waited="false"
         echo -n "     "
+        i=0
         while ipadm | grep -w "addrconf" | awk '{ print $5}' | grep -v "^fe80" | grep -q "^${ipv6_prefix}" ; do
+            let i++
+            if [[ $i -gt 20 ]]; then
+                pr "Stateless ipv6 is not removing."
+                pb "Exit !"
+                exit 1
+            fi
             sleep 0.1
             echo -n "."
             has_waited="true"
@@ -300,19 +330,38 @@ eof
             pg "ok"
         fi
     done
-
     #
     # enable ipv6 static
+    echo ""
     pb "--"
-    pb "Enable ipv6 static with ipv6(${ipv6})"
-    if ! ipadm create-addr -T static -a local="${ipv6}" net0 >& /dev/null; then
+    pb "Enable ipv6 static with ipv6(${ipv6_n_prefix})"
+    if ! ipadm create-addr -T static -a local="${ipv6_n_prefix}" net0 >& /dev/null; then
         pr "Unable to create a static address"
         pb "Exit !"
         exit 1
     fi
     pg "  IPv6 ENABLED !"
     ipadm | grep -w static | grep -v lo | grep net | grep v6 | awk '{ print $5}' | sed "s|^|    |"
+    #
+    # modify /etc/hosts
+    echo "------------------------------------------"
+    echo ""
     pb "--"
+    pb "Add the new hostname in /etc/hosts"
+    official_hostname_n_aliases=$(grep -w ${ipv4} /etc/hosts | gsed -E "s|^\S+\s+||")
+    if [[ -z $official_hostname_n_aliases ]]; then
+        pr "Unable to find official hostname & aliases with:"
+        pr 'the cmd (grep -w ${ipv4} /etc/hosts | gsed -E "s|^\S+\s+||")'
+        pb "Exit !"
+        exit 1
+    fi
+    hosts_bkp=$($DATE "+/etc/hosts.bkp.ipv6-tools_off_to_static_%Y.%m.%d_%Hh%Mm%Ss")
+    ipv6=${ipv6_n_prefix/%\/*/}
+    mv /etc/hosts ${hosts_bkp}
+    grep -vw "${ipv6}" ${hosts_bkp} \
+    | gsed "/${ipv4}/i ${ipv6} ${official_hostname_n_aliases}" \
+    > /etc/hosts
+    pg "done"
 }
 
 function usage()