When adding option with no data, the rte_pcapng_add_option would call memcpy with src of NULL and size of zero. This generates a warning if fortify is enabled.
Bugzilla ID: 1446 Fixes: 8d23ce8f5ee9 ("pcapng: add new library for writing pcapng files") Signed-off-by: Stephen Hemminger <step...@networkplumber.org> --- lib/pcapng/rte_pcapng.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/lib/pcapng/rte_pcapng.c b/lib/pcapng/rte_pcapng.c index f74ec939a9..7254defce7 100644 --- a/lib/pcapng/rte_pcapng.c +++ b/lib/pcapng/rte_pcapng.c @@ -128,7 +128,8 @@ pcapng_add_option(struct pcapng_option *popt, uint16_t code, { popt->code = code; popt->length = len; - memcpy(popt->data, data, len); + if (len > 0) + memcpy(popt->data, data, len); return (struct pcapng_option *)((uint8_t *)popt + pcapng_optlen(len)); } -- 2.43.0