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Mailing List Archive: vpnc: devel svn commit: vpnc r494 - /branches/vpnc-nortel/vpnc-script /trunk/vpnc-script   Index | Next | Previous | View Flat

vpnc at unix-ag Jan 13, 2012, 11:55 PM Views: 157 Permalink svn commit: vpnc r494 - /branches/vpnc-nortel/vpnc-script /trunk/vpnc-script Author: Antonio Borneo Date: Sat Jan 14 08:55:39 2012 New Revision: 494 Log: vpnc-script: prevent negative MTU We can't be sure that the route shown by 'ip route get' will return anything. Restructure the logic to only perform the subtraction if it does. Otherwise, fall back to the default 1412. Signed-off-by: Dave Reisner <dreisner [at] archlinux> Modified: branches/vpnc-nortel/vpnc-script trunk/vpnc-script Modified: branches/vpnc-nortel/vpnc-script ============================================================================== --- branches/vpnc-nortel/vpnc-script (original) +++ branches/vpnc-nortel/vpnc-script Sat Jan 14 08:55:39 2012 @@ -96,8 +96,13 @@ if [ -n "$INTERNAL_IP4_MTU" ]; then MTU=$INTERNAL_IP4_MTU elif [ -n "$IPROUTE" ]; then - MTU=$(($($IPROUTE route get "$VPNGATEWAY" | sed -ne 's/^.*mtu \([[:digit:]]\+\).*$/\1/p') - 88)) - else + MTU=$($IPROUTE route get "$VPNGATEWAY" | sed -ne 's/^.*mtu \([[:digit:]]\+\).*$/\1/p') + if [ -n "$MTU" ]; then + MTU=$(( "$MTU" - 88 )) + fi + fi + + if [ -z "$MTU" ]; then MTU=1412 fi Modified: trunk/vpnc-script ============================================================================== --- trunk/vpnc-script (original) +++ trunk/vpnc-script Sat Jan 14 08:55:39 2012 @@ -96,8 +96,13 @@ if [ -n "$INTERNAL_IP4_MTU" ]; then MTU=$INTERNAL_IP4_MTU elif [ -n "$IPROUTE" ]; then - MTU=$(($($IPROUTE route get "$VPNGATEWAY" | sed -ne 's/^.*mtu \([[:digit:]]\+\).*$/\1/p') - 88)) - else + MTU=$($IPROUTE route get "$VPNGATEWAY" | sed -ne 's/^.*mtu \([[:digit:]]\+\).*$/\1/p') + if [ -n "$MTU" ]; then + MTU=$(( "$MTU" - 88 )) + fi + fi + + if [ -z "$MTU" ]; then MTU=1412 fi _______________________________________________ vpnc-devel mailing list vpnc-devel [at] unix-ag https://lists.unix-ag.uni-kl.de/mailman/listinfo/vpnc-devel http://www.unix-ag.uni-kl.de/~massar/vpnc/

Subject User Time svn commit: vpnc r494 - /branches/vpnc-nortel/vpnc-script /trunk/vpnc-script vpnc at unix-ag Jan 13, 2012, 11:55 PM

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