Blame src/internal/tpax_readlink_impl.h

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/**************************************************************/
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/*  tpax: a topological pax implementation                    */
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/*  Copyright (C) 2020--2024  SysDeer Technologies, LLC       */
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/*  Released under GPLv2 and GPLv3; see COPYING.TPAX.         */
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/**************************************************************/
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#ifndef TPAX_READLINK_IMPL_H
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#define TPAX_READLINK_IMPL_H
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#include <unistd.h>
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#include <errno.h>
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static inline int tpax_readlinkat(
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	int		fdat,
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	const char *	restrict path,
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	char *		restrict buf,
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	ssize_t		bufsize)
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{
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	ssize_t ret;
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	if ((ret = readlinkat(fdat,path,buf,bufsize)) <= 0) {
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		return -1;
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	} else if (ret == bufsize) {
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		errno = ENOBUFS;
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		return -1;
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	} else {
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		buf[ret] = 0;
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		return 0;
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	}
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}
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#endif