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ip: check for null before ip_get_next_hop is used

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This commit is contained in:
Cenk Gündoğan 2014-12-11 15:43:16 +01:00
parent bd80cbcaff
commit 2a7ce79947
1 changed files with 2 additions and 1 deletions
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3
sys/net/network_layer/sixlowpan/ip.c
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@ -106,12 +106,13 @@ int ipv6_send_packet(ipv6_hdr_t *packet, ipv6_addr_t *next_hop)
if (next_hop == NULL) { if (next_hop == NULL) {
DEBUG("Trying to find the next hop for %s\n", ipv6_addr_to_str(addr_str, IPV6_MAX_ADDR_STR_LEN, &packet->destaddr)); DEBUG("Trying to find the next hop for %s\n", ipv6_addr_to_str(addr_str, IPV6_MAX_ADDR_STR_LEN, &packet->destaddr));
ipv6_addr_t *dest = ip_get_next_hop(&packet->destaddr);
if (ip_get_next_hop == NULL) { if (ip_get_next_hop == NULL) {
return -1; return -1;
} }
ipv6_addr_t *dest = ip_get_next_hop(&packet->destaddr);
if (dest == NULL) { if (dest == NULL) {
return -1; return -1;
} }