24d15ad9a5
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>
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| .. | ||
| ip | ||
| ipv4 | ||
| ipv6 | ||
| mac | ||
| rime | ||
| rpl | ||
| linkaddr.c | ||
| linkaddr.h | ||
| nbr-table.c | ||
| nbr-table.h | ||
| netstack.c | ||
| netstack.h | ||
| packetbuf.c | ||
| packetbuf.h | ||
| packetqueue.c | ||
| packetqueue.h | ||
| queuebuf.c | ||
| queuebuf.h | ||