X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fnetwork%2Frecvmmsg.c;h=2978e2f64f34ed07a1a7c65bfd910bf72f63b668;hb=12590c8bbd04ea484cee86812e2258fbdfca0e59;hp=1dc67932dafc430c3eb9577c0b3431bb91854ca8;hpb=6a4a1691a0653bd51a30c2b8ac19448b7ebac796;p=musl

diff --git a/src/network/recvmmsg.c b/src/network/recvmmsg.c
index 1dc67932..2978e2f6 100644
--- a/src/network/recvmmsg.c
+++ b/src/network/recvmmsg.c
@@ -8,6 +8,8 @@
 #define IS32BIT(x) !((x)+0x80000000ULL>>32)
 #define CLAMP(x) (int)(IS32BIT(x) ? (x) : 0x7fffffffU+((0ULL+(x))>>63))
 
+hidden void __convert_scm_timestamps(struct msghdr *, socklen_t);
+
 int recvmmsg(int fd, struct mmsghdr *msgvec, unsigned int vlen, unsigned int flags, struct timespec *timeout)
 {
 #if LONG_MAX > INT_MAX
@@ -19,14 +21,18 @@ int recvmmsg(int fd, struct mmsghdr *msgvec, unsigned int vlen, unsigned int fla
 #ifdef SYS_recvmmsg_time64
 	time_t s = timeout ? timeout->tv_sec : 0;
 	long ns = timeout ? timeout->tv_nsec : 0;
-	int r = -ENOSYS;
-	if (SYS_recvmmsg == SYS_recvmmsg_time64 || !IS32BIT(s))
-		r = __syscall_cp(SYS_recvmmsg_time64, fd, msgvec, vlen, flags,
-			((long long[]){s, ns}));
+	int r = __syscall_cp(SYS_recvmmsg_time64, fd, msgvec, vlen, flags,
+			timeout ? ((long long[]){s, ns}) : 0);
 	if (SYS_recvmmsg == SYS_recvmmsg_time64 || r!=-ENOSYS)
 		return __syscall_ret(r);
-	return syscall_cp(SYS_recvmmsg, fd, msgvec, vlen, flags,
+	if (vlen > IOV_MAX) vlen = IOV_MAX;
+	socklen_t csize[vlen];
+	for (int i=0; i<vlen; i++) csize[i] = msgvec[i].msg_hdr.msg_controllen;
+	r = __syscall_cp(SYS_recvmmsg, fd, msgvec, vlen, flags,
 		timeout ? ((long[]){CLAMP(s), ns}) : 0);
+	for (int i=0; i<r; i++)
+		__convert_scm_timestamps(&msgvec[i].msg_hdr, csize[i]);
+	return __syscall_ret(r);
 #else
 	return syscall_cp(SYS_recvmmsg, fd, msgvec, vlen, flags, timeout);
 #endif