diff options
Diffstat (limited to 'test/syscalls/linux/socket_unix_cmsg.cc')
| -rw-r--r-- | test/syscalls/linux/socket_unix_cmsg.cc | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/test/syscalls/linux/socket_unix_cmsg.cc b/test/syscalls/linux/socket_unix_cmsg.cc index 1092e29b1..a16899493 100644 --- a/test/syscalls/linux/socket_unix_cmsg.cc +++ b/test/syscalls/linux/socket_unix_cmsg.cc @@ -25,7 +25,6 @@ #include <vector> #include "gtest/gtest.h" -#include "gtest/gtest.h" #include "absl/strings/string_view.h" #include "test/syscalls/linux/socket_test_util.h" #include "test/syscalls/linux/unix_domain_socket_test_util.h" @@ -150,6 +149,35 @@ TEST_P(UnixSocketPairCmsgTest, BadFDPass) { SyscallFailsWithErrno(EBADF)); } +TEST_P(UnixSocketPairCmsgTest, ShortCmsg) { + auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); + + char sent_data[20]; + RandomizeBuffer(sent_data, sizeof(sent_data)); + + int sent_fd = -1; + + struct msghdr msg = {}; + char control[CMSG_SPACE(sizeof(sent_fd))]; + msg.msg_control = control; + msg.msg_controllen = sizeof(control); + + struct cmsghdr* cmsg = CMSG_FIRSTHDR(&msg); + cmsg->cmsg_len = 1; + cmsg->cmsg_level = SOL_SOCKET; + cmsg->cmsg_type = SCM_RIGHTS; + memcpy(CMSG_DATA(cmsg), &sent_fd, sizeof(sent_fd)); + + struct iovec iov; + iov.iov_base = sent_data; + iov.iov_len = sizeof(sent_data); + msg.msg_iov = &iov; + msg.msg_iovlen = 1; + + ASSERT_THAT(RetryEINTR(sendmsg)(sockets->first_fd(), &msg, 0), + SyscallFailsWithErrno(EINVAL)); +} + // BasicFDPassNoSpace starts off by sending a single FD just like BasicFDPass. // The difference is that when calling recvmsg, no space for FDs is provided, // only space for the cmsg header. |