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/* $OpenBSD: realpath.c,v 1.28 2023/05/18 16:11:10 guenther Exp $ */
/*
* Copyright (c) 2019 Bob Beck <beck@openbsd.org>
* Copyright (c) 2019 Theo de Raadt <deraadt@openbsd.org>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>
#include <syslog.h>
#include <stdarg.h>
/*
* wrapper for kernel __realpath
*/
char *
realpath(const char *path, char *resolved)
{
char rbuf[PATH_MAX];
if (__realpath(path, rbuf) == -1)
return NULL;
if (resolved == NULL)
return (strdup(rbuf));
strlcpy(resolved, rbuf, PATH_MAX);
return (resolved);
}
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