diff options
Diffstat (limited to 'package/network/ipv6/map/src/mapcalc.c')
| -rw-r--r-- | package/network/ipv6/map/src/mapcalc.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/package/network/ipv6/map/src/mapcalc.c b/package/network/ipv6/map/src/mapcalc.c index afce6d24d7..b4b3d736f0 100644 --- a/package/network/ipv6/map/src/mapcalc.c +++ b/package/network/ipv6/map/src/mapcalc.c @@ -2,7 +2,7 @@ * mapcalc - MAP parameter calculation * * Author: Steven Barth <cyrus@openwrt.org> - * Copyright (c) 2014 cisco Systems, Inc. + * Copyright (c) 2014-2015 cisco Systems, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 @@ -271,8 +271,10 @@ int main(int argc, char *argv[]) if (ealen < 0 && pdlen >= 0) ealen = pdlen - prefix6len; - if (psidlen < 0) + if (psidlen <= 0) { psidlen = ealen - (32 - prefix4len); + psid = -1; + } if (psid < 0 && psidlen <= 16 && psidlen >= 0 && pdlen >= 0 && ealen >= psidlen) { bmemcpys64(&psid16, &pd, prefix6len + ealen - psidlen, psidlen); |