diff --git a/plugins/check_dhcp.c b/plugins/check_dhcp.c index 6703c57c..a3e0c53c 100644 --- a/plugins/check_dhcp.c +++ b/plugins/check_dhcp.c @@ -770,12 +770,21 @@ int add_dhcp_offer(struct in_addr source,dhcp_packet *offer_packet){ printf("Option: %d (0x%02X)\n",option_type,option_length); /* get option data */ - if(option_type==DHCP_OPTION_LEASE_TIME) - dhcp_lease_time=ntohl(*((u_int32_t *)&offer_packet->options[x])); - if(option_type==DHCP_OPTION_RENEWAL_TIME) - dhcp_renewal_time=ntohl(*((u_int32_t *)&offer_packet->options[x])); - if(option_type==DHCP_OPTION_REBINDING_TIME) - dhcp_rebinding_time=ntohl(*((u_int32_t *)&offer_packet->options[x])); + if(option_type==DHCP_OPTION_LEASE_TIME) { + memcpy(&dhcp_lease_time, &offer_packet->options[x], + sizeof(dhcp_lease_time)); + dhcp_lease_time = ntohl(dhcp_lease_time); + } + if(option_type==DHCP_OPTION_RENEWAL_TIME) { + memcpy(&dhcp_renewal_time, &offer_packet->options[x], + sizeof(dhcp_renewal_time)); + dhcp_renewal_time = ntohl(dhcp_renewal_time); + } + if(option_type==DHCP_OPTION_REBINDING_TIME) { + memcpy(&dhcp_rebinding_time, &offer_packet->options[x], + sizeof(dhcp_rebinding_time)); + dhcp_rebinding_time = ntohl(dhcp_rebinding_time); + } /* skip option data we're ignoring */ else