Initial QSfera import

Server/vendor/github.com/kovidgoyal/imaging/magick/memfd_linux.go

@@ -0,0 +1,29 @@
+//go:build linux
+
+package magick
+
+import (
+	"fmt"
+	"os"
+
+	"golang.org/x/sys/unix"
+)
+
+var _ = fmt.Print
+
+func memfd(data []byte) (ans *os.File, err error) {
+	fd, err := unix.MemfdCreate("memfile", unix.O_CLOEXEC)
+	if err != nil {
+		return nil, err
+	}
+	_, err = unix.Write(fd, data)
+	if err != nil {
+		return nil, err
+	}
+	_, err = unix.Seek(fd, 0, unix.SEEK_SET)
+	if err != nil {
+		return nil, err
+	}
+	ans = os.NewFile(uintptr(fd), "memfile")
+	return
+}