init

vendor/github.com/bouk/monkey/replace_unix.go

@@ -0,0 +1,26 @@
+//+build !windows
+
+package monkey
+
+import (
+	"syscall"
+)
+
+// this function is super unsafe
+// aww yeah
+// It copies a slice to a raw memory location, disabling all memory protection before doing so.
+func copyToLocation(location uintptr, data []byte) {
+	f := rawMemoryAccess(location, len(data))
+
+	page := rawMemoryAccess(pageStart(location), syscall.Getpagesize())
+	err := syscall.Mprotect(page, syscall.PROT_READ|syscall.PROT_WRITE|syscall.PROT_EXEC)
+	if err != nil {
+		panic(err)
+	}
+	copy(f, data[:])
+
+	err = syscall.Mprotect(page, syscall.PROT_READ|syscall.PROT_EXEC)
+	if err != nil {
+		panic(err)
+	}
+}