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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
|
/* path.h: path data structures
Copyright 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005,
2006, 2007 Red Hat, Inc.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include "devices.h"
#include <sys/ioctl.h>
#include <fcntl.h>
#define isproc_dev(devn) \
(devn == FH_PROC || devn == FH_REGISTRY || devn == FH_PROCESS || \
devn == FH_PROCNET)
#define isvirtual_dev(devn) \
(isproc_dev (devn) || devn == FH_CYGDRIVE || devn == FH_NETDRIVE)
extern PUNICODE_STRING get_nt_native_path (const char *, UNICODE_STRING &);
inline bool
has_attribute (DWORD attributes, DWORD attribs_to_test)
{
return attributes != INVALID_FILE_ATTRIBUTES
&& (attributes & attribs_to_test);
}
enum executable_states
{
is_executable,
dont_care_if_executable,
not_executable = dont_care_if_executable,
dont_know_if_executable
};
struct suffix_info
{
const char *name;
int addon;
suffix_info (const char *s, int addit = 0): name (s), addon (addit) {}
};
extern suffix_info stat_suffixes[];
enum pathconv_arg
{
PC_SYM_FOLLOW = 0x0001,
PC_SYM_NOFOLLOW = 0x0002,
PC_SYM_IGNORE = 0x0004,
PC_SYM_CONTENTS = 0x0008,
PC_NOFULL = 0x0010,
PC_NULLEMPTY = 0x0020,
PC_CHECK_EA = 0x0040,
PC_POSIX = 0x0080,
PC_NOWARN = 0x0100,
PC_NO_ACCESS_CHECK = 0x00800000
};
enum case_checking
{
PCHECK_RELAXED = 0,
PCHECK_ADJUST = 1,
PCHECK_STRICT = 2
};
#define PC_NONULLEMPTY -1
#include "sys/mount.h"
enum path_types
{
PATH_NOTHING = 0,
PATH_SYMLINK = MOUNT_SYMLINK,
PATH_BINARY = MOUNT_BINARY,
PATH_EXEC = MOUNT_EXEC,
PATH_NOTEXEC = MOUNT_NOTEXEC,
PATH_CYGWIN_EXEC = MOUNT_CYGWIN_EXEC,
PATH_ENC = MOUNT_ENC,
PATH_RO = MOUNT_RO,
PATH_ALL_EXEC = (PATH_CYGWIN_EXEC | PATH_EXEC),
PATH_NO_ACCESS_CHECK = PC_NO_ACCESS_CHECK,
PATH_LNK = 0x01000000,
PATH_TEXT = 0x02000000,
PATH_REP = 0x04000000,
PATH_HAS_SYMLINKS = 0x10000000,
PATH_SOCKET = 0x40000000
};
class symlink_info;
struct fs_info
{
private:
struct status_flags
{
DWORD flags; /* Volume flags */
DWORD samba_version; /* Samba version if available */
unsigned is_remote_drive : 1;
unsigned has_buggy_open : 1;
unsigned has_acls : 1;
unsigned hasgood_inode : 1;
unsigned is_fat : 1;
unsigned is_ntfs : 1;
unsigned is_samba : 1;
unsigned is_nfs : 1;
unsigned is_netapp : 1;
unsigned is_cdrom : 1;
} status;
public:
void clear () { memset (&status, 0 , sizeof status); }
fs_info () { clear (); }
IMPLEMENT_STATUS_FLAG (DWORD, flags)
IMPLEMENT_STATUS_FLAG (DWORD, samba_version)
IMPLEMENT_STATUS_FLAG (bool, is_remote_drive)
IMPLEMENT_STATUS_FLAG (bool, has_buggy_open)
IMPLEMENT_STATUS_FLAG (bool, has_acls)
IMPLEMENT_STATUS_FLAG (bool, hasgood_inode)
IMPLEMENT_STATUS_FLAG (bool, is_fat)
IMPLEMENT_STATUS_FLAG (bool, is_ntfs)
IMPLEMENT_STATUS_FLAG (bool, is_samba)
IMPLEMENT_STATUS_FLAG (bool, is_nfs)
IMPLEMENT_STATUS_FLAG (bool, is_netapp)
IMPLEMENT_STATUS_FLAG (bool, is_cdrom)
bool update (PUNICODE_STRING, bool) __attribute__ ((regparm (3)));
};
class path_conv
{
DWORD fileattr;
fs_info fs;
PWCHAR wide_path;
UNICODE_STRING uni_path;
void add_ext_from_sym (symlink_info&);
public:
unsigned path_flags;
char *known_suffix;
int error;
device dev;
bool case_clash;
bool isremote () const {return fs.is_remote_drive ();}
bool has_acls () const {return fs.has_acls (); }
bool hasgood_inode () const {return fs.hasgood_inode (); }
bool isgood_inode (__ino64_t ino) const;
int has_symlinks () const {return path_flags & PATH_HAS_SYMLINKS;}
int has_buggy_open () const {return fs.has_buggy_open ();}
bool isencoded () const {return path_flags & PATH_ENC;}
int binmode () const
{
if (path_flags & PATH_BINARY)
return O_BINARY;
if (path_flags & PATH_TEXT)
return O_TEXT;
return 0;
}
int issymlink () const {return path_flags & PATH_SYMLINK;}
int is_lnk_symlink () const {return path_flags & PATH_LNK;}
int is_rep_symlink () const {return path_flags & PATH_REP;}
int isdevice () const {return dev.devn && dev.devn != FH_FS && dev.devn != FH_FIFO;}
int isfifo () const {return dev == FH_FIFO;}
int isspecial () const {return dev.devn && dev.devn != FH_FS;}
int iscygdrive () const {return dev.devn == FH_CYGDRIVE;}
int is_auto_device () const {return isdevice () && !is_fs_special ();}
int is_fs_device () const {return isdevice () && is_fs_special ();}
int is_fs_special () const {return dev.is_fs_special ();}
int is_lnk_special () const {return is_fs_device () || isfifo () || is_lnk_symlink ();}
int issocket () const {return dev.devn == FH_UNIX;}
int iscygexec () const {return path_flags & PATH_CYGWIN_EXEC;}
void set_cygexec (bool isset)
{
if (isset)
path_flags |= PATH_CYGWIN_EXEC;
else
path_flags &= ~PATH_CYGWIN_EXEC;
}
bool isro () const {return !!(path_flags & PATH_RO);}
bool exists () const {return fileattr != INVALID_FILE_ATTRIBUTES;}
bool has_attribute (DWORD x) const {return exists () && (fileattr & x);}
int isdir () const {return has_attribute (FILE_ATTRIBUTE_DIRECTORY);}
executable_states exec_state ()
{
extern int _check_for_executable;
if (path_flags & PATH_ALL_EXEC)
return is_executable;
if (path_flags & PATH_NOTEXEC)
return not_executable;
if (!_check_for_executable)
return dont_care_if_executable;
return dont_know_if_executable;
}
void set_binary () {path_flags |= PATH_BINARY;}
void set_symlink (DWORD n) {path_flags |= PATH_SYMLINK; symlink_length = n;}
void set_has_symlinks () {path_flags |= PATH_HAS_SYMLINKS;}
void set_exec (int x = 1) {path_flags |= x ? PATH_EXEC : PATH_NOTEXEC;}
void check (PUNICODE_STRING upath, unsigned opt = PC_SYM_FOLLOW,
const suffix_info *suffixes = NULL) __attribute__ ((regparm(3)));
void check (const char *src, unsigned opt = PC_SYM_FOLLOW,
const suffix_info *suffixes = NULL) __attribute__ ((regparm(3)));
path_conv (const device& in_dev): fileattr (INVALID_FILE_ATTRIBUTES),
wide_path (NULL), path_flags (0), known_suffix (NULL), error (0),
dev (in_dev)
{
strcpy (path, in_dev.native);
}
path_conv (int, const char *src, unsigned opt = PC_SYM_FOLLOW,
const suffix_info *suffixes = NULL)
{
check (src, opt, suffixes);
}
path_conv (PUNICODE_STRING src, unsigned opt = PC_SYM_FOLLOW,
const suffix_info *suffixes = NULL)
{
check (src, opt | PC_NULLEMPTY, suffixes);
}
path_conv (const char *src, unsigned opt = PC_SYM_FOLLOW,
const suffix_info *suffixes = NULL)
{
check (src, opt | PC_NULLEMPTY, suffixes);
}
path_conv (): fileattr (INVALID_FILE_ATTRIBUTES), wide_path (NULL),
path_flags (0), known_suffix (NULL), error (0),
normalized_path (NULL)
{path[0] = '\0';}
~path_conv ();
inline char *get_win32 () { return path; }
PUNICODE_STRING get_nt_native_path ();
POBJECT_ATTRIBUTES get_object_attr (OBJECT_ATTRIBUTES &attr,
SECURITY_ATTRIBUTES &sa);
inline size_t get_wide_win32_path_len ()
{
get_nt_native_path ();
return uni_path.Length / sizeof (WCHAR);
}
PWCHAR get_wide_win32_path (PWCHAR wc);
operator DWORD &() {return fileattr;}
operator int () {return fileattr; }
path_conv &operator =(path_conv &pc)
{
memcpy (this, &pc, pc.size ());
set_normalized_path (pc.normalized_path, false);
wide_path = NULL;
return *this;
}
DWORD get_devn () const {return dev.devn;}
short get_unitn () const {return dev.minor;}
DWORD file_attributes () const {return fileattr;}
void file_attributes (DWORD new_attr) {fileattr = new_attr;}
DWORD fs_flags () {return fs.flags ();}
bool fs_is_fat () const {return fs.is_fat ();}
bool fs_is_ntfs () const {return fs.is_ntfs ();}
bool fs_is_samba () const {return fs.is_samba ();}
bool fs_is_nfs () const {return fs.is_nfs ();}
bool fs_is_netapp () const {return fs.is_netapp ();}
bool fs_is_cdrom () const {return fs.is_cdrom ();}
void set_path (const char *p) {strcpy (path, p);}
void fillin (HANDLE h);
inline size_t size ()
{
return (sizeof (*this) - sizeof (path)) + strlen (path) + 1 + normalized_path_size;
}
bool is_binary ();
unsigned __stdcall ndisk_links (DWORD);
char *normalized_path;
size_t normalized_path_size;
void set_normalized_path (const char *, bool) __attribute__ ((regparm (3)));
DWORD get_symlink_length () { return symlink_length; };
private:
DWORD symlink_length;
char path[NT_MAX_PATH];
};
/* Symlink marker */
#define SYMLINK_COOKIE "!<symlink>"
/* Socket marker */
#define SOCKET_COOKIE "!<socket >"
int __stdcall slash_unc_prefix_p (const char *path) __attribute__ ((regparm(1)));
enum fe_types
{
FE_NADA = 0, /* Nothing special */
FE_NNF = 1, /* Return NULL if not found */
FE_NATIVE = 2, /* Return native path in path_conv struct */
FE_CWD = 4, /* Search CWD for program */
FE_DLL = 8 /* Search for DLLs, not executables. */
};
const char * __stdcall find_exec (const char *name, path_conv& buf,
const char *winenv = "PATH=",
unsigned opt = FE_NADA,
const char **known_suffix = NULL)
__attribute__ ((regparm(3)));
/* Common macros for checking for invalid path names */
#define isdrive(s) (isalpha (*(s)) && (s)[1] == ':')
#define iswdrive(s) (iswalpha (*(s)) && (s)[1] == L':')
static inline bool
has_exec_chars (const char *buf, int len)
{
return len >= 2 &&
((buf[0] == '#' && buf[1] == '!') ||
(buf[0] == ':' && buf[1] == '\n') ||
(buf[0] == 'M' && buf[1] == 'Z'));
}
int pathmatch (const char *path1, const char *path2) __attribute__ ((regparm (2)));
int pathnmatch (const char *path1, const char *path2, int len) __attribute__ ((regparm (2)));
bool has_dot_last_component (const char *dir, bool test_dot_dot) __attribute__ ((regparm (2)));
bool fnunmunge (char *, const char *) __attribute__ ((regparm (2)));
int path_prefix_p (const char *path1, const char *path2, int len1) __attribute__ ((regparm (3)));
bool is_floppy (const char *);
/* FIXME: Move to own include file eventually */
#define MAX_ETC_FILES 2
class etc
{
friend class dtable;
static int curr_ix;
static HANDLE changed_h;
static bool change_possible[MAX_ETC_FILES + 1];
static OBJECT_ATTRIBUTES fn[MAX_ETC_FILES + 1];
static LARGE_INTEGER last_modified[MAX_ETC_FILES + 1];
static bool dir_changed (int);
static int init (int, PUNICODE_STRING);
static bool file_changed (int);
static bool test_file_change (int);
friend class pwdgrp;
};
|