#ifndef NM_DLHOOK_H
#define NM_DLHOOK_H
#ifdef __cplusplus
extern "C" {
#endif

#include "util.h"

// nm_dlhook takes a lib handle from dlopen and redirects the specified symbol
// to another, returning a pointer to the original one. Only calls from within
// that library itself are affected (because it replaces that library's GOT).
// This function requires glibc and Linux. It should work on any architecture,
// and it should be resilient to most errors. If it fails, NULL is returned and
// nm_err is set.
NM_PRIVATE void *nm_dlhook(void *handle, const char *symname, void *target);

#ifdef __cplusplus
}
#endif
#endif