diff options
Diffstat (limited to 'src/libsystemd-network/dhcp6-option.c')
| -rw-r--r-- | src/libsystemd-network/dhcp6-option.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/libsystemd-network/dhcp6-option.c b/src/libsystemd-network/dhcp6-option.c index f488832cf9..e9b382c170 100644 --- a/src/libsystemd-network/dhcp6-option.c +++ b/src/libsystemd-network/dhcp6-option.c @@ -58,13 +58,14 @@ int dhcp6_option_append(uint8_t **buf, size_t *buflen, uint16_t code, size_t optlen, const void *optval) { int r; - assert_return(optval, -EINVAL); + assert_return(optval || optlen == 0, -EINVAL); r = option_append_hdr(buf, buflen, code, optlen); if (r < 0) return r; - memcpy(*buf, optval, optlen); + if (optval) + memcpy(*buf, optval, optlen); *buf += optlen; *buflen -= optlen; |