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
|
/* Hurd unionfs
Copyright (C) 2001, 2002, 2005 Free Software Foundation, Inc.
Written by Moritz Schulte <moritz@duesseldorf.ccc.de>.
This program 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 2 of the
License, or * (at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA. */
#ifndef INCLUDED_LIB_H
#define INCLUDED_LIB_H
#include <hurd.h>
#include <dirent.h>
#include <stddef.h>
/* Returned directory entries are aligned to blocks this many bytes
long. Must be a power of two. */
#define DIRENT_ALIGN 4
#define DIRENT_NAME_OFFS offsetof (struct dirent, d_name)
/* Length is structure before the name + the name + '\0', all padded
to a four-byte alignment. */
#define DIRENT_LEN(name_len) \
((DIRENT_NAME_OFFS + (name_len) + 1 + (DIRENT_ALIGN - 1)) \
& ~(DIRENT_ALIGN - 1))
/* These macros remove some Mach specific code from the server
itself. */
#define port_null MACH_PORT_NULL
#define port_dealloc(p) mach_port_deallocate (mach_task_self (), (p))
#define port_valid(p) ((p) != port_null)
/* Fetch directory entries for DIR; store the raw data as returned by
the dir_readdir RPC in *DIRENT_DATA, the size of *DIRENT_DATA in
*DIRENT_DATA_SIZE and a list of pointers to the dirent structures
in *DIRENT_LIST. */
error_t dir_entries_get (file_t dir, char **dirent_data,
size_t *dirent_data_size,
struct dirent ***dirent_list);
char *make_filepath (char *, char *);
error_t for_each_subdir (char *, error_t (*) (char *, char *));
error_t for_each_subdir_priv (char *, error_t (*) (char *, char *, void *),
void *);
/* Lookup the file named NAME beneath DIR (or the cwd, if DIR is not a
valid port. Try to open with FLAGS0 first, and if that fails with
FLAGS1; MODE is the mode to user for newly created files. On
success, stat the looked up port and store it in *PORT, the
according stat information are stored in *STAT. */
error_t file_lookup (file_t dir, char *name, int flags0, int flags1, int mode,
file_t *port, struct stat *stat);
/* Returns no error if directory. */
error_t check_dir (char *path);
extern struct mutex debug_msg_lock;
/* Support for debugging messages. */
#define debug_msg_send(fmt, args...) \
do \
{ \
mutex_lock (&debug_msg_lock); \
fprintf (stderr, "%s:%i: ", __FILE__, __LINE__); \
fprintf (stderr, fmt , ## args); \
putc ('\n', stderr); \
mutex_unlock (&debug_msg_lock); \
} \
while (0)
#endif
|
