#include <dlfcn.h>
#include <string.h>
# define RTLD_NEXT  ((void *) -1l)


extern char *__md5_crypt(const char *, const char *);

char *
crypt(const char *pw, const char *salt)
{
	char *(*func)(const char *, const char *);

	if (strncmp(salt, "$1$", 3) == 0) {
		func = __md5_crypt;
	} else {
		func = dlsym(RTLD_NEXT, "crypt");
		if (!func)
			func = __md5_crypt;
	}

	return func(pw, salt);
}