1sendmmsg(1, {{{msg_name(0)=NULL, msg_iov(2)=[{"one", 3}, {"two", 3}], msg_controllen=0, msg_flags=0}, 6}, {{msg_name(0)=NULL, msg_iov(1)=[{"three", 5}], msg_controllen=0, msg_flags=0}, 5}}, 2, 0) = 2 2 = 2 buffers in vector 0 3 * 3 bytes in buffer 0 4 | 00000 6f 6e 65 one | 5 * 3 bytes in buffer 1 6 | 00000 74 77 6f two | 7 = 1 buffers in vector 1 8 * 5 bytes in buffer 0 9 | 00000 74 68 72 65 65 three | 10recvmmsg(0, {{{msg_name(0)=NULL, msg_iov(2)=[{"one", 3}, {"two", 3}], msg_controllen=0, msg_flags=0}, 6}, {{msg_name(0)=NULL, msg_iov(1)=[{"three", 5}], msg_controllen=0, msg_flags=0}, 5}}, 2, 0, NULL) = 2 (left NULL) 11 = 2 buffers in vector 0 12 * 3 bytes in buffer 0 13 | 00000 6f 6e 65 one | 14 * 3 bytes in buffer 1 15 | 00000 74 77 6f two | 16 = 1 buffers in vector 1 17 * 5 bytes in buffer 0 18 | 00000 74 68 72 65 65 three | 19+++ exited with 0 +++ 20