diff options
| -rw-r--r-- | linux-user/syscall.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 10f05b1e55..9b9e3bd5e3 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -3440,7 +3440,17 @@ static abi_long do_accept4(int fd, abi_ulong target_addr, abi_long ret; int host_flags; - host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl); + if (flags & ~(TARGET_SOCK_CLOEXEC | TARGET_SOCK_NONBLOCK)) { + return -TARGET_EINVAL; + } + + host_flags = 0; + if (flags & TARGET_SOCK_NONBLOCK) { + host_flags |= SOCK_NONBLOCK; + } + if (flags & TARGET_SOCK_CLOEXEC) { + host_flags |= SOCK_CLOEXEC; + } if (target_addr == 0) { return get_errno(safe_accept4(fd, NULL, NULL, host_flags)); |