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filemode.c

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1/* filemode.c -- make a string describing file modes-
2-
3 Copyright (C) 1985, 1990, 1993, 1998-2000, 2004, 2006, 2009-2018 Free-
4 Software Foundation, Inc.-
5-
6 This program is free software: you can redistribute it and/or modify-
7 it under the terms of the GNU General Public License as published by-
8 the Free Software Foundation; either version 3 of the License, or-
9 (at your option) any later version.-
10-
11 This program is distributed in the hope that it will be useful,-
12 but WITHOUT ANY WARRANTY; without even the implied warranty of-
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the-
14 GNU General Public License for more details.-
15-
16 You should have received a copy of the GNU General Public License-
17 along with this program. If not, see <https://www.gnu.org/licenses/>. */-
18-
19#include <config.h>-
20-
21#include "filemode.h"-
22-
23/* The following is for Cray DMF (Data Migration Facility), which is a-
24 HSM file system. A migrated file has a 'st_dm_mode' that is-
25 different from the normal 'st_mode', so any tests for migrated-
26 files should use the former. */-
27#if HAVE_ST_DM_MODE-
28# define IS_MIGRATED_FILE(statp) \-
29 (S_ISOFD (statp->st_dm_mode) || S_ISOFL (statp->st_dm_mode))-
30#else-
31# define IS_MIGRATED_FILE(statp) 0-
32#endif-
33-
34#if ! HAVE_DECL_STRMODE-
35-
36/* Return a character indicating the type of file described by-
37 file mode BITS:-
38 '-' regular file-
39 'b' block special file-
40 'c' character special file-
41 'C' high performance ("contiguous data") file-
42 'd' directory-
43 'D' door-
44 'l' symbolic link-
45 'm' multiplexed file (7th edition Unix; obsolete)-
46 'n' network special file (HP-UX)-
47 'p' fifo (named pipe)-
48 'P' port-
49 's' socket-
50 'w' whiteout (4.4BSD)-
51 '?' some other file type */-
52-
53static char-
54ftypelet (mode_t bits)-
55{-
56 /* These are the most common, so test for them first. */-
57 if (S_ISREG (bits))
(((( bits )) &... == (0100000))Description
TRUEevaluated 35 times by 6 tests
Evaluated by:
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FALSEevaluated 182 times by 4 tests
Evaluated by:
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35-182
58 return '-';
executed 35 times by 6 tests: return '-';
Executed by:
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35
59 if (S_ISDIR (bits))
(((( bits )) &... == (0040000))Description
TRUEevaluated 166 times by 3 tests
Evaluated by:
  • ls
  • stat
  • vdir
FALSEevaluated 16 times by 3 tests
Evaluated by:
  • chmod
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16-166
60 return 'd';
executed 166 times by 3 tests: return 'd';
Executed by:
  • ls
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166
61-
62 /* Other letters standardized by POSIX 1003.1-2004. */-
63 if (S_ISBLK (bits))
(((( bits )) &... == (0060000))Description
TRUEnever evaluated
FALSEevaluated 16 times by 3 tests
Evaluated by:
  • chmod
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0-16
64 return 'b';
never executed: return 'b';
0
65 if (S_ISCHR (bits))
(((( bits )) &... == (0020000))Description
TRUEnever evaluated
FALSEevaluated 16 times by 3 tests
Evaluated by:
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0-16
66 return 'c';
never executed: return 'c';
0
67 if (S_ISLNK (bits))
(((( bits )) &... == (0120000))Description
TRUEevaluated 13 times by 2 tests
Evaluated by:
  • ls
  • vdir
FALSEevaluated 3 times by 1 test
Evaluated by:
  • chmod
3-13
68 return 'l';
executed 13 times by 2 tests: return 'l';
Executed by:
  • ls
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13
69 if (S_ISFIFO (bits))
(((( bits )) &... == (0010000))Description
TRUEnever evaluated
FALSEevaluated 3 times by 1 test
Evaluated by:
  • chmod
0-3
70 return 'p';
never executed: return 'p';
0
71-
72 /* Other file types (though not letters) standardized by POSIX. */-
73 if (S_ISSOCK (bits))
(((( bits )) &... == (0140000))Description
TRUEnever evaluated
FALSEevaluated 3 times by 1 test
Evaluated by:
  • chmod
0-3
74 return 's';
never executed: return 's';
0
75-
76 /* Nonstandard file types. */-
77 if (S_ISCTG (bits))
dead code: return 'C';
-
78 return 'C';
dead code: return 'C';
-
79 if (S_ISDOOR (bits))
dead code: return 'D';
-
80 return 'D';
dead code: return 'D';
-
81 if (S_ISMPB (bits) || S_ISMPC (bits) || S_ISMPX (bits))
dead code: return 'm';
-
82 return 'm';
dead code: return 'm';
-
83 if (S_ISNWK (bits))
dead code: return 'n';
-
84 return 'n';
dead code: return 'n';
-
85 if (S_ISPORT (bits))
dead code: return 'P';
-
86 return 'P';
dead code: return 'P';
-
87 if (S_ISWHT (bits))
dead code: return 'w';
-
88 return 'w';
dead code: return 'w';
-
89-
90 return '?';
executed 3 times by 1 test: return '?';
Executed by:
  • chmod
3
91}-
92-
93/* Like filemodestring, but rely only on MODE. */-
94-
95void-
96strmode (mode_t mode, char *str)-
97{-
98 str[0] = ftypelet (mode);-
99 str[1] = mode & S_IRUSR ? 'r' : '-';
mode & 0400Description
TRUEevaluated 206 times by 4 tests
Evaluated by:
  • chmod
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FALSEevaluated 11 times by 3 tests
Evaluated by:
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11-206
100 str[2] = mode & S_IWUSR ? 'w' : '-';
mode & 0200Description
TRUEevaluated 208 times by 4 tests
Evaluated by:
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FALSEevaluated 9 times by 3 tests
Evaluated by:
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9-208
101 str[3] = (mode & S_ISUID
mode & 04000Description
TRUEnever evaluated
FALSEevaluated 217 times by 6 tests
Evaluated by:
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0-217
102 ? (mode & S_IXUSR ? 's' : 'S')
mode & 0100Description
TRUEnever evaluated
FALSEnever evaluated
0
103 : (mode & S_IXUSR ? 'x' : '-'));
mode & 0100Description
TRUEevaluated 178 times by 4 tests
Evaluated by:
  • chmod
  • ls
  • stat
  • vdir
FALSEevaluated 39 times by 6 tests
Evaluated by:
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39-178
104 str[4] = mode & S_IRGRP ? 'r' : '-';
mode & (0400 >> 3)Description
TRUEevaluated 65 times by 4 tests
Evaluated by:
  • chmod
  • ls
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FALSEevaluated 152 times by 5 tests
Evaluated by:
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65-152
105 str[5] = mode & S_IWGRP ? 'w' : '-';
mode & (0200 >> 3)Description
TRUEevaluated 23 times by 4 tests
Evaluated by:
  • chmod
  • ls
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  • vdir
FALSEevaluated 194 times by 6 tests
Evaluated by:
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23-194
106 str[6] = (mode & S_ISGID
mode & 02000Description
TRUEnever evaluated
FALSEevaluated 217 times by 6 tests
Evaluated by:
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0-217
107 ? (mode & S_IXGRP ? 's' : 'S')
mode & (0100 >> 3)Description
TRUEnever evaluated
FALSEnever evaluated
0
108 : (mode & S_IXGRP ? 'x' : '-'));
mode & (0100 >> 3)Description
TRUEevaluated 44 times by 4 tests
Evaluated by:
  • chmod
  • ls
  • stat
  • vdir
FALSEevaluated 173 times by 6 tests
Evaluated by:
  • chmod
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  • mv
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  • vdir
44-173
109 str[7] = mode & S_IROTH ? 'r' : '-';
mode & ((0400 >> 3) >> 3)Description
TRUEevaluated 38 times by 4 tests
Evaluated by:
  • chmod
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FALSEevaluated 179 times by 5 tests
Evaluated by:
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38-179
110 str[8] = mode & S_IWOTH ? 'w' : '-';
mode & ((0200 >> 3) >> 3)Description
TRUEevaluated 32 times by 3 tests
Evaluated by:
  • ls
  • stat
  • vdir
FALSEevaluated 185 times by 6 tests
Evaluated by:
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32-185
111 str[9] = (mode & S_ISVTX
mode & 01000Description
TRUEnever evaluated
FALSEevaluated 217 times by 6 tests
Evaluated by:
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0-217
112 ? (mode & S_IXOTH ? 't' : 'T')
mode & ((0100 >> 3) >> 3)Description
TRUEnever evaluated
FALSEnever evaluated
0
113 : (mode & S_IXOTH ? 'x' : '-'));
mode & ((0100 >> 3) >> 3)Description
TRUEevaluated 35 times by 4 tests
Evaluated by:
  • chmod
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  • vdir
FALSEevaluated 182 times by 6 tests
Evaluated by:
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35-182
114 str[10] = ' ';-
115 str[11] = '\0';-
116}
executed 217 times by 6 tests: end of block
Executed by:
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217
117-
118#endif /* ! HAVE_DECL_STRMODE */-
119-
120/* filemodestring - fill in string STR with an ls-style ASCII-
121 representation of the st_mode field of file stats block STATP.-
122 12 characters are stored in STR.-
123 The characters stored in STR are:-
124-
125 0 File type, as in ftypelet above, except that other letters are used-
126 for files whose type cannot be determined solely from st_mode:-
127-
128 'F' semaphore-
129 'M' migrated file (Cray DMF)-
130 'Q' message queue-
131 'S' shared memory object-
132 'T' typed memory object-
133-
134 1 'r' if the owner may read, '-' otherwise.-
135-
136 2 'w' if the owner may write, '-' otherwise.-
137-
138 3 'x' if the owner may execute, 's' if the file is-
139 set-user-id, '-' otherwise.-
140 'S' if the file is set-user-id, but the execute-
141 bit isn't set.-
142-
143 4 'r' if group members may read, '-' otherwise.-
144-
145 5 'w' if group members may write, '-' otherwise.-
146-
147 6 'x' if group members may execute, 's' if the file is-
148 set-group-id, '-' otherwise.-
149 'S' if it is set-group-id but not executable.-
150-
151 7 'r' if any user may read, '-' otherwise.-
152-
153 8 'w' if any user may write, '-' otherwise.-
154-
155 9 'x' if any user may execute, 't' if the file is "sticky"-
156 (will be retained in swap space after execution), '-'-
157 otherwise.-
158 'T' if the file is sticky but not executable.-
159-
160 10 ' ' for compatibility with 4.4BSD strmode,-
161 since this interface does not support ACLs.-
162-
163 11 '\0'. */-
164-
165void-
166filemodestring (struct stat const *statp, char *str)-
167{-
168 strmode (statp->st_mode, str);-
169-
170 if (S_TYPEISSEM (statp))
(( statp )->st...tp )->st_mode)Description
TRUEnever evaluated
FALSEevaluated 210 times by 3 tests
Evaluated by:
  • ls
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  • vdir
0-210
171 str[0] = 'F';
never executed: str[0] = 'F';
0
172 else if (IS_MIGRATED_FILE (statp))
dead code: str[0] = 'M';
-
173 str[0] = 'M';
dead code: str[0] = 'M';
-
174 else if (S_TYPEISMQ (statp))
(( statp )->st...tp )->st_mode)Description
TRUEnever evaluated
FALSEevaluated 210 times by 3 tests
Evaluated by:
  • ls
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  • vdir
0-210
175 str[0] = 'Q';
never executed: str[0] = 'Q';
0
176 else if (S_TYPEISSHM (statp))
(( statp )->st...tp )->st_mode)Description
TRUEnever evaluated
FALSEevaluated 210 times by 3 tests
Evaluated by:
  • ls
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  • vdir
0-210
177 str[0] = 'S';
never executed: str[0] = 'S';
0
178 else if (S_TYPEISTMO (statp))
dead code: str[0] = 'T';
-
179 str[0] = 'T';
dead code: str[0] = 'T';
-
180}
executed 210 times by 3 tests: end of block
Executed by:
  • ls
  • stat
  • vdir
210
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