xref: /illumos-gate/usr/src/ucblib/libucb/port/gen/getwd.c (revision 8c0b080c)

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright (c) 1995-1997, by Sun Microsystems, Inc.
 * All rights reserved.
 */

/*LINTLIBRARY*/

#include <sys/types.h>
#include <sys/param.h>
#include <errno.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>

char *
getwd(char *pathname)
{
	char *c;
	long val;

	if ((val = pathconf(".", _PC_PATH_MAX)) == -1L)
		val = MAXPATHLEN + 1;

	if ((c = getcwd(pathname, val)) == NULL) {
		if (errno == EACCES)
			(void) strcpy(pathname,
				"getwd: a parent directory cannot be read");
		else if (errno == ERANGE)
			(void) strcpy(pathname, "getwd: buffer too small");
		else
			(void) strcpy(pathname, "getwd: failure occurred");
		return (0);
	}

	return (c);
}