epoll_create: fail with EINVAL if size is non-positive

[musl] / src / dirent / fdopendir.c

diff --git a/src/dirent/fdopendir.c b/src/dirent/fdopendir.c
index c377271..d78fb87 100644 (file)
--- a/src/dirent/fdopendir.c
+++ b/src/dirent/fdopendir.c
@@ -13,6 +13,10 @@ DIR *fdopendir(int fd)
        if (fstat(fd, &st) < 0) {
                return 0;
        }
+       if (fcntl(fd, F_GETFL) & O_PATH) {
+               errno = EBADF;
+               return 0;
+       }
        if (!S_ISDIR(st.st_mode)) {
                errno = ENOTDIR;
                return 0;