diff options
| -rw-r--r-- | udp.c | 17 |
1 files changed, 10 insertions, 7 deletions
@@ -1075,17 +1075,20 @@ int udp_tap_handler(struct ctx *c, int af, const void *addr, uh_send = packet_get(p, i, 0, sizeof(*uh), &len); if (!uh_send) return p->count; - if (!len) - continue; - - m[i].iov_base = (char *)(uh_send + 1); - m[i].iov_len = len; mm[i].msg_hdr.msg_name = sa; mm[i].msg_hdr.msg_namelen = sl; - mm[i].msg_hdr.msg_iov = m + i; - mm[i].msg_hdr.msg_iovlen = 1; + if (len) { + m[i].iov_base = (char *)(uh_send + 1); + m[i].iov_len = len; + + mm[i].msg_hdr.msg_iov = m + i; + mm[i].msg_hdr.msg_iovlen = 1; + } else { + mm[i].msg_hdr.msg_iov = NULL; + mm[i].msg_hdr.msg_iovlen = 0; + } mm[i].msg_hdr.msg_control = NULL; mm[i].msg_hdr.msg_controllen = 0; |