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
|
/* filemode.c -- make a string describing file modes
Copyright (C) 1985, 1990, 1993, 1998-2000, 2004 Free Software Foundation, Inc.
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, 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. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include "filemode.h"
#include "stat-macros.h"
/* Set the 's' and 't' flags in file attributes string CHARS,
according to the file mode BITS. */
static void
setst (mode_t bits, char *chars)
{
if (bits & S_ISUID)
{
if (chars[3] != 'x')
/* Set-uid, but not executable by owner. */
chars[3] = 'S';
else
chars[3] = 's';
}
if (bits & S_ISGID)
{
if (chars[6] != 'x')
/* Set-gid, but not executable by group. */
chars[6] = 'S';
else
chars[6] = 's';
}
if (bits & S_ISVTX)
{
if (chars[9] != 'x')
/* Sticky, but not executable by others. */
chars[9] = 'T';
else
chars[9] = 't';
}
}
/* Return a character indicating the type of file described by
file mode BITS:
'd' for directories
'D' for doors
'b' for block special files
'c' for character special files
'n' for network special files
'm' for multiplexor files
'M' for an off-line (regular) file
'l' for symbolic links
's' for sockets
'p' for fifos
'C' for contigous data files
'-' for regular files
'?' for any other file type. */
static char
ftypelet (mode_t bits)
{
if (S_ISBLK (bits))
return 'b';
if (S_ISCHR (bits))
return 'c';
if (S_ISDIR (bits))
return 'd';
if (S_ISREG (bits))
return '-';
if (S_ISFIFO (bits))
return 'p';
if (S_ISLNK (bits))
return 'l';
if (S_ISSOCK (bits))
return 's';
if (S_ISMPC (bits))
return 'm';
if (S_ISNWK (bits))
return 'n';
if (S_ISDOOR (bits))
return 'D';
if (S_ISCTG (bits))
return 'C';
/* The following two tests are for Cray DMF (Data Migration
Facility), which is a HSM file system. A migrated file has a
`st_dm_mode' that is different from the normal `st_mode', so any
tests for migrated files should use the former. */
if (S_ISOFD (bits))
/* off line, with data */
return 'M';
/* off line, with no data */
if (S_ISOFL (bits))
return 'M';
return '?';
}
/* Like filemodestring, but only the relevant part of the `struct stat'
is given as an argument. */
void
mode_string (mode_t mode, char *str)
{
str[0] = ftypelet (mode);
str[1] = mode & S_IRUSR ? 'r' : '-';
str[2] = mode & S_IWUSR ? 'w' : '-';
str[3] = mode & S_IXUSR ? 'x' : '-';
str[4] = mode & S_IRGRP ? 'r' : '-';
str[5] = mode & S_IWGRP ? 'w' : '-';
str[6] = mode & S_IXGRP ? 'x' : '-';
str[7] = mode & S_IROTH ? 'r' : '-';
str[8] = mode & S_IWOTH ? 'w' : '-';
str[9] = mode & S_IXOTH ? 'x' : '-';
setst (mode, str);
}
/* filemodestring - fill in string STR with an ls-style ASCII
representation of the st_mode field of file stats block STATP.
10 characters are stored in STR; no terminating null is added.
The characters stored in STR are:
0 File type. 'd' for directory, 'c' for character
special, 'b' for block special, 'm' for multiplex,
'l' for symbolic link, 's' for socket, 'p' for fifo,
'-' for regular, '?' for any other file type
1 'r' if the owner may read, '-' otherwise.
2 'w' if the owner may write, '-' otherwise.
3 'x' if the owner may execute, 's' if the file is
set-user-id, '-' otherwise.
'S' if the file is set-user-id, but the execute
bit isn't set.
4 'r' if group members may read, '-' otherwise.
5 'w' if group members may write, '-' otherwise.
6 'x' if group members may execute, 's' if the file is
set-group-id, '-' otherwise.
'S' if it is set-group-id but not executable.
7 'r' if any user may read, '-' otherwise.
8 'w' if any user may write, '-' otherwise.
9 'x' if any user may execute, 't' if the file is "sticky"
(will be retained in swap space after execution), '-'
otherwise.
'T' if the file is sticky but not executable. */
void
filemodestring (struct stat *statp, char *str)
{
mode_string (statp->st_mode, str);
}
|
