1 /* $NetBSD: getcwd.c,v 1.1.1.1 2016/01/13 18:41:48 christos Exp $ */
2
3 /* Copyright (C) 2000 Free Software Foundation, Inc.
4 Written by James Clark (jjc@jclark.com)
5
6 This file is part of groff.
7
8 groff is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 2, or (at your option) any later
11 version.
12
13 groff is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 for more details.
17
18 You should have received a copy of the GNU General Public License along
19 with groff; see the file COPYING. If not, write to the Free Software
20 Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */
21
22 /* Partial emulation of getcwd in terms of getwd. */
23
24 #include <sys/param.h>
25 #include <string.h>
26 #include <errno.h>
27
28 char *getwd();
29
getcwd(buf,size)30 char *getcwd(buf, size)
31 char *buf;
32 int size; /* POSIX says this should be size_t */
33 {
34 if (size <= 0) {
35 errno = EINVAL;
36 return 0;
37 }
38 else {
39 char mybuf[MAXPATHLEN];
40 int saved_errno = errno;
41
42 errno = 0;
43 if (!getwd(mybuf)) {
44 if (errno == 0)
45 ; /* what to do? */
46 return 0;
47 }
48 errno = saved_errno;
49 if (strlen(mybuf) + 1 > size) {
50 errno = ERANGE;
51 return 0;
52 }
53 strcpy(buf, mybuf);
54 return buf;
55 }
56 }
57