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/*
libsubstitute - https://github.com/comex/substitute
This header file is in the public domain.
*/
#pragma once
// TODO add numbers
enum {
SUBSTITUTE_OK = 0,
SUBSTITUTE_ERR_MODULE_NOT_FOUND,
};
int substitute_hook_function(void *function, void *replacement, int options, void *result);
/* Darwin specific */
#ifdef __APPLE__
#include <mach-o/nlist.h>
#ifdef __LP64__
typedef struct nlist_64 substitute_nlist;
#else
typedef struct nlist substitute_nlist;
#endif
/* Look up private symbols in an image currently loaded into the process.
* Vaguely inspired by nlist(3), but somewhat different.
*
* @filename the executable/library path (c.f. dyld(3))
* @names an array of symbol names to search for
* @nlist an array of substitute_nlist *, one per name; on return, each entry
* will be a pointer into the symbol table for that image, or NULL if the
* symbol wasn't found
* @count number of names
*
* @return SUBSTITUTE_OK or SUBSTITUTE_ERR_MODULE_NOT_FOUND
*/
int substitute_nlist(const char *filename, const char **names,
substitute_nlist **nlist, size_t count);
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