1 #include <sys/socket.h>
8 hidden void __convert_scm_timestamps(struct msghdr *, socklen_t);
10 void __convert_scm_timestamps(struct msghdr *msg, socklen_t csize)
12 if (SCM_TIMESTAMP == SCM_TIMESTAMP_OLD) return;
13 if (!msg->msg_control || !msg->msg_controllen) return;
15 struct cmsghdr *cmsg, *last=0;
20 for (cmsg=CMSG_FIRSTHDR(msg); cmsg; cmsg=CMSG_NXTHDR(msg, cmsg)) {
21 if (cmsg->cmsg_level==SOL_SOCKET) switch (cmsg->cmsg_type) {
22 case SCM_TIMESTAMP_OLD:
26 case SCM_TIMESTAMPNS_OLD:
27 type = SCM_TIMESTAMPNS;
29 memcpy(&tmp, CMSG_DATA(cmsg), sizeof tmp);
31 memcpy(&tmp, CMSG_DATA(cmsg) + sizeof tmp, sizeof tmp);
37 if (!last || !type) return;
38 if (CMSG_SPACE(sizeof tvts) > csize-msg->msg_controllen) {
39 msg->msg_flags |= MSG_CTRUNC;
42 msg->msg_controllen += CMSG_SPACE(sizeof tvts);
43 cmsg = CMSG_NXTHDR(msg, last);
44 cmsg->cmsg_level = SOL_SOCKET;
45 cmsg->cmsg_type = type;
46 cmsg->cmsg_len = CMSG_LEN(sizeof tvts);
47 memcpy(CMSG_DATA(cmsg), &tvts, sizeof tvts);
50 ssize_t recvmsg(int fd, struct msghdr *msg, int flags)
53 socklen_t orig_controllen = msg->msg_controllen;
54 #if LONG_MAX > INT_MAX
55 struct msghdr h, *orig = msg;
58 h.__pad1 = h.__pad2 = 0;
62 r = socketcall_cp(recvmsg, fd, msg, flags, 0, 0, 0);
63 if (r >= 0) __convert_scm_timestamps(msg, orig_controllen);
64 #if LONG_MAX > INT_MAX