diff options
| author | Denys Vlasenko <vda.linux@googlemail.com> | 2019-01-07 15:33:42 +0100 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2019-01-07 15:33:42 +0100 |
| commit | 74d9f1ba37010face4bd1449df4d60dd84450b06 (patch) | |
| tree | ec6b078d67826b01c69ad533376be7c763596bd2 /networking/udhcp/common.c | |
| parent | b80bdeba0248e2742cf801e7429d5d7aad69d26d (diff) | |
udhcpc: when decoding DHCP_SUBNET, ensure it is 4 bytes long
function old new delta
udhcp_run_script 795 801 +6
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'networking/udhcp/common.c')
| -rw-r--r-- | networking/udhcp/common.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/networking/udhcp/common.c b/networking/udhcp/common.c index 4c2221b77..fc4de5716 100644 --- a/networking/udhcp/common.c +++ b/networking/udhcp/common.c @@ -302,7 +302,7 @@ uint8_t* FAST_FUNC udhcp_get_option32(struct dhcp_packet *packet, int code) { uint8_t *r = udhcp_get_option(packet, code); if (r) { - if (r[-1] != 4) + if (r[-OPT_DATA + OPT_LEN] != 4) r = NULL; } return r; |