diff --git a/test/libc/sock/sendrecvmsg_test.c b/test/libc/sock/sendrecvmsg_test.c
new file mode 100644
index 000000000..98c55ccb7
--- /dev/null
+++ b/test/libc/sock/sendrecvmsg_test.c
@@ -0,0 +1,62 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Copyright 2021                                                               │
+│                                                                              │
+│ Permission to use, copy, modify, and/or distribute this software for         │
+│ any purpose with or without fee is hereby granted, provided that the         │
+│ above copyright notice and this permission notice appear in all copies.      │
+│                                                                              │
+│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
+│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
+│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
+│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
+│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
+│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
+│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
+│ PERFORMANCE OF THIS SOFTWARE.                                                │
+╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/assert.h"
+#include "libc/dce.h"
+#include "libc/sock/sock.h"
+#include "libc/sysv/consts/af.h"
+#include "libc/sysv/consts/o.h"
+#include "libc/sysv/consts/sock.h"
+#include "libc/testlib/testlib.h"
+
+TEST(sendrecvmsg, testPingPong) {
+  int fd[2];
+  const char hello[] = "HELLO";
+  const char world[] = "WORLD";
+  struct msghdr msg;
+  struct iovec data[2];
+  const uint32_t hwLen = strlen(hello)+strlen(world);
+
+  memset(&msg, 0, sizeof(msg));
+  memset(&data[0], 0, sizeof(data));
+
+  data[0].iov_base = hello;
+  data[0].iov_len = strlen(hello);
+  data[1].iov_base = world;
+  data[1].iov_len = strlen(world);    /* Don't send the '\0' */
+
+  msg.msg_iov = &data[0];
+  msg.msg_iovlen = 2;
+
+  ASSERT_NE(-1, socketpair(AF_UNIX, SOCK_STREAM, 0, fd));
+  ASSERT_EQ(hwLen, sendmsg(fd[0], &msg, 0));
+  
+  data[0].iov_base = malloc(20);
+  data[0].iov_len = 20;
+  ASSERT_NE(NULL, data[0].iov_base);
+  msg.msg_iovlen = 1;
+  ASSERT_EQ(hwLen, recvmsg(fd[1], &msg, 0));
+
+  ASSERT_EQ(0, memcmp(&(((char *)(msg.msg_iov[0].iov_base))[0]), hello, strlen(hello)));
+  ASSERT_EQ(0, memcmp(&(((char *)(msg.msg_iov[0].iov_base))[strlen(hello)]), world, strlen(world)));
+
+  ASSERT_NE(-1, close(fd[0]));
+  ASSERT_NE(-1, close(fd[1]));
+}
+
+