1/***********************************************************************
2*                                                                      *
3*               This software is part of the ast package               *
4*          Copyright (c) 1985-2010 AT&T Intellectual Property          *
5*                      and is licensed under the                       *
6*                  Common Public License, Version 1.0                  *
7*                    by AT&T Intellectual Property                     *
8*                                                                      *
9*                A copy of the License is available at                 *
10*            http://www.opensource.org/licenses/cpl1.0.txt             *
11*         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
12*                                                                      *
13*              Information and Software Systems Research               *
14*                            AT&T Research                             *
15*                           Florham Park NJ                            *
16*                                                                      *
17*                 Glenn Fowler <gsf@research.att.com>                  *
18*                  David Korn <dgk@research.att.com>                   *
19*                   Phong Vo <kpv@research.att.com>                    *
20*                                                                      *
21***********************************************************************/
22#pragma prototyped
23/*
24 * Glenn Fowler
25 * AT&T Research
26 *
27 * convert native path to posix fs representation in <buf,siz>
28 * length of converted path returned
29 * if return length >= siz then buf is indeterminate, but another call
30 * with siz=length+1 would work
31 * if buf==0 then required size is returned
32 */
33
34#include <ast.h>
35
36#if _UWIN
37
38#include <uwin.h>
39
40size_t
41pathposix(const char* path, char* buf, size_t siz)
42{
43	return uwin_unpath(path, buf, siz);
44}
45
46#else
47
48#if __CYGWIN__
49
50extern void	cygwin_conv_to_posix_path(const char*, char*);
51
52size_t
53pathposix(const char* path, char* buf, size_t siz)
54{
55	size_t		n;
56
57	if (!buf || siz < PATH_MAX)
58	{
59		char	tmp[PATH_MAX];
60
61		cygwin_conv_to_posix_path(path, tmp);
62		if ((n = strlen(tmp)) < siz && buf)
63			memcpy(buf, tmp, n + 1);
64		return n;
65	}
66	cygwin_conv_to_posix_path(path, buf);
67	return strlen(buf);
68}
69
70#else
71
72#if __EMX__ && 0 /* show me the docs */
73
74size_t
75pathposix(const char* path, char* buf, size_t siz)
76{
77	char*		s;
78	size_t		n;
79
80	if (!_posixpath(buf, path, siz))
81	{
82		for (s = buf; *s; s++)
83			if (*s == '/')
84				*s = '\\';
85	}
86	else if ((n = strlen(path)) < siz && buf)
87		memcpy(buf, path, n + 1);
88	return n;
89}
90
91#else
92
93#if __INTERIX
94
95#include <interix/interix.h>
96
97size_t
98pathposix(const char* path, char *buf, size_t siz)
99{
100	static const char	pfx[] = "/dev/fs";
101
102	*buf = 0;
103	if (!strncasecmp(path, pfx, sizeof(pfx) - 1))
104		strlcpy(buf, path, siz);
105	else
106		winpath2unix(path, PATH_NONSTRICT, buf, siz);
107	return strlen(buf);
108}
109
110#else
111
112size_t
113pathposix(const char* path, char* buf, size_t siz)
114{
115	size_t		n;
116
117	if ((n = strlen(path)) < siz && buf)
118		memcpy(buf, path, n + 1);
119	return n;
120}
121
122#endif
123
124#endif
125
126#endif
127
128#endif
129