INIT_LIST_HEAD(&iface->dhcpv4_assignments);
int sock = socket(AF_INET, SOCK_DGRAM | SOCK_CLOEXEC, IPPROTO_UDP);
+ if (sock < 0) {
+ syslog(LOG_ERR, "Failed to create DHCPv4 server socket: %s",
+ strerror(errno));
+ return -1;
+ }
// Basic IPv6 configuration
int val = 1;
// Construct entry
size_t hostlen = strlen(lease->hostname) + 1;
struct dhcpv4_assignment *a = calloc(1, sizeof(*a) + hostlen);
-
+ if (!a) {
+ syslog(LOG_ERR, "Calloc failed for static lease on interface %s",
+ iface->ifname);
+ return -1;
+ }
a->addr = ntohl(lease->ipaddr.s_addr);
memcpy(a->hwaddr, lease->mac.ether_addr_octet, sizeof(a->hwaddr));
memcpy(a->hostname, lease->hostname, hostlen);
if (!a && !iface->no_dynamic_dhcp) { // Create new binding
a = calloc(1, sizeof(*a) + hostlen);
+ if (!a) {
+ syslog(LOG_ERR, "Failed to calloc binding on interface %s", iface->ifname);
+ return NULL;
+ }
memcpy(a->hwaddr, mac, sizeof(a->hwaddr));
memcpy(a->hostname, hostname, hostlen);
if (assigned && !a->hostname[0] && hostname) {
a = realloc(a, sizeof(*a) + hostlen);
+ if (!a) {
+ syslog(LOG_ERR, "Failed to realloc binding on interface %s", iface->ifname);
+ return NULL;
+ }
memcpy(a->hostname, hostname, hostlen);
// Fixup list