1/* Copyright (C) 2000 Free Software Foundation, Inc.
2     Written by James Clark (jjc@jclark.com)
3
4This file is part of groff.
5
6groff is free software; you can redistribute it and/or modify it under
7the terms of the GNU General Public License as published by the Free
8Software Foundation; either version 2, or (at your option) any later
9version.
10
11groff is distributed in the hope that it will be useful, but WITHOUT ANY
12WARRANTY; without even the implied warranty of MERCHANTABILITY or
13FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14for more details.
15
16You should have received a copy of the GNU General Public License along
17with groff; see the file COPYING.  If not, write to the Free Software
18Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */
19
20/* Partial emulation of getcwd in terms of getwd. */
21
22#include <sys/param.h>
23#include <string.h>
24#include <errno.h>
25
26char *getwd();
27
28char *getcwd(buf, size)
29     char *buf;
30     int size;			/* POSIX says this should be size_t */
31{
32  if (size <= 0) {
33    errno = EINVAL;
34    return 0;
35  }
36  else {
37    char mybuf[MAXPATHLEN];
38    int saved_errno = errno;
39
40    errno = 0;
41    if (!getwd(mybuf)) {
42      if (errno == 0)
43	;       /* what to do? */
44      return 0;
45    }
46    errno = saved_errno;
47    if (strlen(mybuf) + 1 > size) {
48      errno = ERANGE;
49      return 0;
50    }
51    strcpy(buf, mybuf);
52    return buf;
53  }
54}
55