1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
/* Cygwin support routines.
Copyright (C) 2011-2017 Free Software Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */
#include "cygw32.h"
#include "character.h"
#include "buffer.h"
#include <unistd.h>
#include <fcntl.h>
static void
fchdir_unwind (int dir_fd)
{
(void) fchdir (dir_fd);
(void) close (dir_fd);
}
static void
chdir_to_default_directory (void)
{
Lisp_Object new_cwd;
int old_cwd_fd = emacs_open (".", O_RDONLY | O_DIRECTORY, 0);
if (old_cwd_fd == -1)
error ("could not open current directory: %s", strerror (errno));
record_unwind_protect_int (fchdir_unwind, old_cwd_fd);
new_cwd = Funhandled_file_name_directory (
Fexpand_file_name (build_string ("."), Qnil));
if (!STRINGP (new_cwd))
new_cwd = build_string ("/");
if (chdir (SSDATA (ENCODE_FILE (new_cwd))))
error ("could not chdir: %s", strerror (errno));
}
static Lisp_Object
conv_filename_to_w32_unicode (Lisp_Object in, int absolute_p)
{
ssize_t converted_len;
Lisp_Object converted;
unsigned flags;
int count = SPECPDL_INDEX ();
chdir_to_default_directory ();
flags = CCP_POSIX_TO_WIN_W;
if (!absolute_p) {
flags |= CCP_RELATIVE;
}
in = ENCODE_FILE (in);
converted_len = cygwin_conv_path (flags, SDATA (in), NULL, 0);
if (converted_len < 2)
error ("cygwin_conv_path: %s", strerror (errno));
converted = make_uninit_string (converted_len - 1);
if (cygwin_conv_path (flags, SDATA (in),
SDATA (converted), converted_len))
error ("cygwin_conv_path: %s", strerror (errno));
return unbind_to (count, converted);
}
static Lisp_Object
conv_filename_from_w32_unicode (const wchar_t* in, int absolute_p)
{
ssize_t converted_len;
Lisp_Object converted;
unsigned flags;
int count = SPECPDL_INDEX ();
chdir_to_default_directory ();
flags = CCP_WIN_W_TO_POSIX;
if (!absolute_p) {
flags |= CCP_RELATIVE;
}
converted_len = cygwin_conv_path (flags, in, NULL, 0);
if (converted_len < 1)
error ("cygwin_conv_path: %s", strerror (errno));
converted = make_uninit_string (converted_len - 1 /*subtract terminator*/);
if (cygwin_conv_path (flags, in, SDATA (converted), converted_len))
error ("cygwin_conv_path: %s", strerror (errno));
return unbind_to (count, DECODE_FILE (converted));
}
DEFUN ("cygwin-convert-file-name-to-windows",
Fcygwin_convert_file_name_to_windows,
Scygwin_convert_file_name_to_windows,
1, 2, 0,
doc: /* Convert a Cygwin file name FILE to a Windows-style file name.
If ABSOLUTE-P is non-nil, return an absolute file name.
For the reverse operation, see `cygwin-convert-file-name-from-windows'. */)
(Lisp_Object file, Lisp_Object absolute_p)
{
return from_unicode (
conv_filename_to_w32_unicode (file, EQ (absolute_p, Qnil) ? 0 : 1));
}
DEFUN ("cygwin-convert-file-name-from-windows",
Fcygwin_convert_file_name_from_windows,
Scygwin_convert_file_name_from_windows,
1, 2, 0,
doc: /* Convert a Windows-style file name FILE to a Cygwin file name.
If ABSOLUTE-P is non-nil, return an absolute file name.
For the reverse operation, see `cygwin-convert-file-name-to-windows'. */)
(Lisp_Object file, Lisp_Object absolute_p)
{
return conv_filename_from_w32_unicode (to_unicode (file, &file),
EQ (absolute_p, Qnil) ? 0 : 1);
}
void
syms_of_cygw32 (void)
{
defsubr (&Scygwin_convert_file_name_from_windows);
defsubr (&Scygwin_convert_file_name_to_windows);
}
|
