capnspacehook · February 21, 2019 13:37 · Feb 21, 2019
diff --git a/invokeInMemLinux.go b/invokeInMemLinux.go
@@ -0,0 +1,43 @@
+
+
+package main
+
+import (
+	"io/ioutil"
+	"os"
+	"os/exec"
+	"strconv"
+	"syscall"
+	"unsafe"
+)
+
+func main() {
+	newFdName := "test_fd"
+	fdName, err := syscall.BytePtrFromString(newFdName)
+	if err != nil {
+		panic(err)
+	}
+	fd, _, _ := syscall.Syscall(319, uintptr(unsafe.Pointer(fdName)), 1, 0)
+
+	pid := os.Getpid()
+
+	file, err := ioutil.ReadFile("/home/capnspacehook/test.bin")
+	if err != nil {
+		panic(err)
+	}
+
+	fdPath := "/proc/" + strconv.Itoa(pid) + "/fd/" + strconv.Itoa(int(fd))
+	err = ioutil.WriteFile(fdPath, file, 0755)
+	if err != nil {
+		panic(err)
+	}
+	println(fdPath)
+
+	fdCmd := exec.Command(fdPath)
+	fdCmd.Stdout = os.Stdout
+	fdCmd.Stderr = os.Stderr
+	err = fdCmd.Run()
+	if err != nil {
+		panic(err)
+	}
+}