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| author | Denys Vlasenko | 2018-12-17 18:07:18 +0100 |
|---|---|---|
| committer | Denys Vlasenko | 2018-12-17 18:07:18 +0100 |
| commit | 6d3b4bb24da9a07c263f3c1acf8df85382ff562c (patch) | |
| tree | 62b1094f93c955774e8b2d4aee798029a5a71b7d /networking/udhcp/dhcpd.c | |
| parent | 4b72aebe80aaa50a765d5ff61d7d67ed731502d9 (diff) | |
| download | busybox-6d3b4bb24da9a07c263f3c1acf8df85382ff562c.zip busybox-6d3b4bb24da9a07c263f3c1acf8df85382ff562c.tar.gz | |
udhcpc: check that 4-byte options are indeed 4-byte, closes 11506
function old new delta
udhcp_get_option32 - 27 +27
udhcp_get_option 231 248 +17
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/0 up/down: 44/0) Total: 44 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'networking/udhcp/dhcpd.c')
| -rw-r--r-- | networking/udhcp/dhcpd.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/networking/udhcp/dhcpd.c b/networking/udhcp/dhcpd.c index a8cd3f0..477856d 100644 --- a/networking/udhcp/dhcpd.c +++ b/networking/udhcp/dhcpd.c @@ -640,7 +640,7 @@ static void add_server_options(struct dhcp_packet *packet) static uint32_t select_lease_time(struct dhcp_packet *packet) { uint32_t lease_time_sec = server_config.max_lease_sec; - uint8_t *lease_time_opt = udhcp_get_option(packet, DHCP_LEASE_TIME); + uint8_t *lease_time_opt = udhcp_get_option32(packet, DHCP_LEASE_TIME); if (lease_time_opt) { move_from_unaligned32(lease_time_sec, lease_time_opt); lease_time_sec = ntohl(lease_time_sec); @@ -987,7 +987,7 @@ int udhcpd_main(int argc UNUSED_PARAM, char **argv) } /* Get SERVER_ID if present */ - server_id_opt = udhcp_get_option(&packet, DHCP_SERVER_ID); + server_id_opt = udhcp_get_option32(&packet, DHCP_SERVER_ID); if (server_id_opt) { uint32_t server_id_network_order; move_from_unaligned32(server_id_network_order, server_id_opt); @@ -1011,7 +1011,7 @@ int udhcpd_main(int argc UNUSED_PARAM, char **argv) } /* Get REQUESTED_IP if present */ - requested_ip_opt = udhcp_get_option(&packet, DHCP_REQUESTED_IP); + requested_ip_opt = udhcp_get_option32(&packet, DHCP_REQUESTED_IP); if (requested_ip_opt) { move_from_unaligned32(requested_nip, requested_ip_opt); } |