/**************************************************************/

/*  tpax: a topological pax implementation                    */

/*  Copyright (C) 2020--2021  SysDeer Technologies, LLC       */

/*  Released under GPLv2 and GPLv3; see COPYING.TPAX.         */

/**************************************************************/

#ifndef TPAX_READLINK_IMPL_H

#define TPAX_READLINK_IMPL_H

#include <unistd.h>

#include <errno.h>

static inline int tpax_readlinkat(

	int		fdat,

	const char *	restrict path,

	char *		restrict buf,

	ssize_t		bufsize)

{

	ssize_t ret;

	if ((ret = readlinkat(fdat,path,buf,bufsize)) <= 0) {

		return -1;

	} else if (ret == bufsize) {

		errno = ENOBUFS;

		return -1;

	} else {

		buf[ret] = 0;

		return 0;

	}

}

#endif