1 /* Copyright (C) 2000 Free Software Foundation, Inc.
2 Written by James Clark (jjc@jclark.com)
3
4 This file is part of groff.
5
6 groff is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 2, or (at your option) any later
9 version.
10
11 groff is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 for more details.
15
16 You should have received a copy of the GNU General Public License along
17 with groff; see the file COPYING. If not, write to the Free Software
18 Foundation, 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
26 char *getwd();
27
getcwd(buf,size)28 char *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