GetModuleFileName (WinAPI) equivalent implementation for OSX

GetModuleFileName.cpp

#include <mach-o/dyld.h>
#include <mach-o/getsect.h>
#include <dlfcn.h>
#include <string>

std::string GetModuleFileName(const void *module)
{
	if (!module) { return std::string(); }
	uint32_t count = _dyld_image_count();
	for (uint32_t i = 0; i < count; ++i) {
		const mach_header *header = _dyld_get_image_header(i);
		if (!header) { break; }
		char *code_ptr = NULL;
		if ((header->magic & MH_MAGIC_64) == MH_MAGIC_64) {
			uint64_t size;
			code_ptr = getsectdatafromheader_64((const mach_header_64 *)header, SEG_TEXT, SECT_TEXT, &size);
		} else {
			uint32_t size;
			code_ptr = getsectdatafromheader(header, SEG_TEXT, SECT_TEXT, &size);
		}
		if (!code_ptr) { continue; }
		const uintptr_t slide = _dyld_get_image_vmaddr_slide(i);
		const uintptr_t start = (const uintptr_t)code_ptr + slide;
		Dl_info info;
		if (dladdr((const void *)start, &info)) {
			if (dlopen(info.dli_fname, RTLD_NOW) == module) {
				return std::string(info.dli_fname);
			}
		}
	}
	return std::string();
}