diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/dhcpv4.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/dhcpv4.c b/src/dhcpv4.c index c7ac058..b0a4603 100644 --- a/src/dhcpv4.c +++ b/src/dhcpv4.c @@ -95,7 +95,8 @@ int setup_dhcpv4_interface(struct interface *iface, bool enable) return -1; } - uint32_t mask = iface->addr4[0].prefix ? htonl(~((1 << (32 - iface->addr4[0].prefix)) - 1)) : 0; + uint32_t mask = iface->addr4 && iface->addr4[0].prefix ? + htonl(~((1 << (32 - iface->addr4[0].prefix)) - 1)) : 0xffffffff; /* Create a range if not specified */ if (!(iface->dhcpv4_start.s_addr & htonl(0xffff0000)) && |