mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-09-09 08:54:32 +00:00
An off-by-one error in resolv_found() could make an strncat() call overflow by the terminating null byte. When building with Clang the following warning was shown: ../../../core/net/ip/resolv.c:1458:17: warning: the value of the size argument in 'strncat' is too large, might lead to a buffer overflow [-Wstrncat-size] sizeof(resolv_hostname) - strlen(resolv_hostname)); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../../../core/net/ip/resolv.c:1458:17: note: change the argument to be the free space in the destination buffer minus the terminating null byte sizeof(resolv_hostname) - strlen(resolv_hostname)); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ sizeof(resolv_hostname) - strlen(resolv_hostname) - 1 Signed-off-by: Joakim Gebart <joakim.gebart@eistec.se> |
||
---|---|---|
.. | ||
cfs | ||
ctk | ||
dev | ||
lib | ||
loader | ||
net | ||
sys | ||
contiki-default-conf.h | ||
contiki-lib.h | ||
contiki-net.h | ||
contiki-version.h | ||
contiki.h |