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modechange.c

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1/* modechange.c -- file mode manipulation-
2-
3 Copyright (C) 1989-1990, 1997-1999, 2001, 2003-2006, 2009-2018 Free Software-
4 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/* Written by David MacKenzie <djm@ai.mit.edu> */-
20-
21/* The ASCII mode string is compiled into an array of 'struct-
22 modechange', which can then be applied to each file to be changed.-
23 We do this instead of re-parsing the ASCII string for each file-
24 because the compiled form requires less computation to use; when-
25 changing the mode of many files, this probably results in a-
26 performance gain. */-
27-
28#include <config.h>-
29-
30#include "modechange.h"-
31#include <sys/stat.h>-
32#include "stat-macros.h"-
33#include "xalloc.h"-
34#include <stdlib.h>-
35-
36/* The traditional octal values corresponding to each mode bit. */-
37#define SUID 04000-
38#define SGID 02000-
39#define SVTX 01000-
40#define RUSR 00400-
41#define WUSR 00200-
42#define XUSR 00100-
43#define RGRP 00040-
44#define WGRP 00020-
45#define XGRP 00010-
46#define ROTH 00004-
47#define WOTH 00002-
48#define XOTH 00001-
49#define ALLM 07777 /* all octal mode bits */-
50-
51/* Convert OCTAL, which uses one of the traditional octal values, to-
52 an internal mode_t value. */-
53static mode_t-
54octal_to_mode (unsigned int octal)-
55{-
56 /* Help the compiler optimize the usual case where mode_t uses-
57 the traditional octal representation. */-
58 return ((S_ISUID == SUID && S_ISGID == SGID && S_ISVTX == SVTX
executed 89 times by 3 tests: return (( 04000 == 04000 && 02000 == 02000 && 01000 == 01000 && 0400 == 00400 && 0200 == 00200 && 0100 == 00100 && (0400 >> 3) == 00040 && (0200 >> 3) == 00020 && (0100 >> 3) == 00010 && ((0400 >> 3) >> 3) == 00004 && ((0200 >> 3) >> 3) == 00002 && ((0100...100 ? 0100 : 0) | (octal & 00040 ? (0400 >> 3) : 0) | (octal & 00020 ? (0200 >> 3) : 0) | (octal & 00010 ? (0100 >> 3) : 0) | (octal & 00004 ? ((0400 >> 3) >> 3) : 0) | (octal & 00002 ? ((0200 >> 3) >> 3) : 0) | (octal & 00001 ? ((0100 >> 3) >> 3) : 0)));
Executed by:
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89
59 && S_IRUSR == RUSR && S_IWUSR == WUSR && S_IXUSR == XUSR
executed 89 times by 3 tests: return (( 04000 == 04000 && 02000 == 02000 && 01000 == 01000 && 0400 == 00400 && 0200 == 00200 && 0100 == 00100 && (0400 >> 3) == 00040 && (0200 >> 3) == 00020 && (0100 >> 3) == 00010 && ((0400 >> 3) >> 3) == 00004 && ((0200 >> 3) >> 3) == 00002 && ((0100...100 ? 0100 : 0) | (octal & 00040 ? (0400 >> 3) : 0) | (octal & 00020 ? (0200 >> 3) : 0) | (octal & 00010 ? (0100 >> 3) : 0) | (octal & 00004 ? ((0400 >> 3) >> 3) : 0) | (octal & 00002 ? ((0200 >> 3) >> 3) : 0) | (octal & 00001 ? ((0100 >> 3) >> 3) : 0)));
Executed by:
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89
60 && S_IRGRP == RGRP && S_IWGRP == WGRP && S_IXGRP == XGRP
executed 89 times by 3 tests: return (( 04000 == 04000 && 02000 == 02000 && 01000 == 01000 && 0400 == 00400 && 0200 == 00200 && 0100 == 00100 && (0400 >> 3) == 00040 && (0200 >> 3) == 00020 && (0100 >> 3) == 00010 && ((0400 >> 3) >> 3) == 00004 && ((0200 >> 3) >> 3) == 00002 && ((0100...100 ? 0100 : 0) | (octal & 00040 ? (0400 >> 3) : 0) | (octal & 00020 ? (0200 >> 3) : 0) | (octal & 00010 ? (0100 >> 3) : 0) | (octal & 00004 ? ((0400 >> 3) >> 3) : 0) | (octal & 00002 ? ((0200 >> 3) >> 3) : 0) | (octal & 00001 ? ((0100 >> 3) >> 3) : 0)));
Executed by:
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89
61 && S_IROTH == ROTH && S_IWOTH == WOTH && S_IXOTH == XOTH)
executed 89 times by 3 tests: return (( 04000 == 04000 && 02000 == 02000 && 01000 == 01000 && 0400 == 00400 && 0200 == 00200 && 0100 == 00100 && (0400 >> 3) == 00040 && (0200 >> 3) == 00020 && (0100 >> 3) == 00010 && ((0400 >> 3) >> 3) == 00004 && ((0200 >> 3) >> 3) == 00002 && ((0100...100 ? 0100 : 0) | (octal & 00040 ? (0400 >> 3) : 0) | (octal & 00020 ? (0200 >> 3) : 0) | (octal & 00010 ? (0100 >> 3) : 0) | (octal & 00004 ? ((0400 >> 3) >> 3) : 0) | (octal & 00002 ? ((0200 >> 3) >> 3) : 0) | (octal & 00001 ? ((0100 >> 3) >> 3) : 0)));
Executed by:
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89
62 ? octal
executed 89 times by 3 tests: return (( 04000 == 04000 && 02000 == 02000 && 01000 == 01000 && 0400 == 00400 && 0200 == 00200 && 0100 == 00100 && (0400 >> 3) == 00040 && (0200 >> 3) == 00020 && (0100 >> 3) == 00010 && ((0400 >> 3) >> 3) == 00004 && ((0200 >> 3) >> 3) == 00002 && ((0100...100 ? 0100 : 0) | (octal & 00040 ? (0400 >> 3) : 0) | (octal & 00020 ? (0200 >> 3) : 0) | (octal & 00010 ? (0100 >> 3) : 0) | (octal & 00004 ? ((0400 >> 3) >> 3) : 0) | (octal & 00002 ? ((0200 >> 3) >> 3) : 0) | (octal & 00001 ? ((0100 >> 3) >> 3) : 0)));
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89
63 : (mode_t) ((octal & SUID ? S_ISUID : 0)
executed 89 times by 3 tests: return (( 04000 == 04000 && 02000 == 02000 && 01000 == 01000 && 0400 == 00400 && 0200 == 00200 && 0100 == 00100 && (0400 >> 3) == 00040 && (0200 >> 3) == 00020 && (0100 >> 3) == 00010 && ((0400 >> 3) >> 3) == 00004 && ((0200 >> 3) >> 3) == 00002 && ((0100...100 ? 0100 : 0) | (octal & 00040 ? (0400 >> 3) : 0) | (octal & 00020 ? (0200 >> 3) : 0) | (octal & 00010 ? (0100 >> 3) : 0) | (octal & 00004 ? ((0400 >> 3) >> 3) : 0) | (octal & 00002 ? ((0200 >> 3) >> 3) : 0) | (octal & 00001 ? ((0100 >> 3) >> 3) : 0)));
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89
64 | (octal & SGID ? S_ISGID : 0)
executed 89 times by 3 tests: return (( 04000 == 04000 && 02000 == 02000 && 01000 == 01000 && 0400 == 00400 && 0200 == 00200 && 0100 == 00100 && (0400 >> 3) == 00040 && (0200 >> 3) == 00020 && (0100 >> 3) == 00010 && ((0400 >> 3) >> 3) == 00004 && ((0200 >> 3) >> 3) == 00002 && ((0100...100 ? 0100 : 0) | (octal & 00040 ? (0400 >> 3) : 0) | (octal & 00020 ? (0200 >> 3) : 0) | (octal & 00010 ? (0100 >> 3) : 0) | (octal & 00004 ? ((0400 >> 3) >> 3) : 0) | (octal & 00002 ? ((0200 >> 3) >> 3) : 0) | (octal & 00001 ? ((0100 >> 3) >> 3) : 0)));
Executed by:
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89
65 | (octal & SVTX ? S_ISVTX : 0)
executed 89 times by 3 tests: return (( 04000 == 04000 && 02000 == 02000 && 01000 == 01000 && 0400 == 00400 && 0200 == 00200 && 0100 == 00100 && (0400 >> 3) == 00040 && (0200 >> 3) == 00020 && (0100 >> 3) == 00010 && ((0400 >> 3) >> 3) == 00004 && ((0200 >> 3) >> 3) == 00002 && ((0100...100 ? 0100 : 0) | (octal & 00040 ? (0400 >> 3) : 0) | (octal & 00020 ? (0200 >> 3) : 0) | (octal & 00010 ? (0100 >> 3) : 0) | (octal & 00004 ? ((0400 >> 3) >> 3) : 0) | (octal & 00002 ? ((0200 >> 3) >> 3) : 0) | (octal & 00001 ? ((0100 >> 3) >> 3) : 0)));
Executed by:
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89
66 | (octal & RUSR ? S_IRUSR : 0)
executed 89 times by 3 tests: return (( 04000 == 04000 && 02000 == 02000 && 01000 == 01000 && 0400 == 00400 && 0200 == 00200 && 0100 == 00100 && (0400 >> 3) == 00040 && (0200 >> 3) == 00020 && (0100 >> 3) == 00010 && ((0400 >> 3) >> 3) == 00004 && ((0200 >> 3) >> 3) == 00002 && ((0100...100 ? 0100 : 0) | (octal & 00040 ? (0400 >> 3) : 0) | (octal & 00020 ? (0200 >> 3) : 0) | (octal & 00010 ? (0100 >> 3) : 0) | (octal & 00004 ? ((0400 >> 3) >> 3) : 0) | (octal & 00002 ? ((0200 >> 3) >> 3) : 0) | (octal & 00001 ? ((0100 >> 3) >> 3) : 0)));
Executed by:
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89
67 | (octal & WUSR ? S_IWUSR : 0)
executed 89 times by 3 tests: return (( 04000 == 04000 && 02000 == 02000 && 01000 == 01000 && 0400 == 00400 && 0200 == 00200 && 0100 == 00100 && (0400 >> 3) == 00040 && (0200 >> 3) == 00020 && (0100 >> 3) == 00010 && ((0400 >> 3) >> 3) == 00004 && ((0200 >> 3) >> 3) == 00002 && ((0100...100 ? 0100 : 0) | (octal & 00040 ? (0400 >> 3) : 0) | (octal & 00020 ? (0200 >> 3) : 0) | (octal & 00010 ? (0100 >> 3) : 0) | (octal & 00004 ? ((0400 >> 3) >> 3) : 0) | (octal & 00002 ? ((0200 >> 3) >> 3) : 0) | (octal & 00001 ? ((0100 >> 3) >> 3) : 0)));
Executed by:
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89
68 | (octal & XUSR ? S_IXUSR : 0)
executed 89 times by 3 tests: return (( 04000 == 04000 && 02000 == 02000 && 01000 == 01000 && 0400 == 00400 && 0200 == 00200 && 0100 == 00100 && (0400 >> 3) == 00040 && (0200 >> 3) == 00020 && (0100 >> 3) == 00010 && ((0400 >> 3) >> 3) == 00004 && ((0200 >> 3) >> 3) == 00002 && ((0100...100 ? 0100 : 0) | (octal & 00040 ? (0400 >> 3) : 0) | (octal & 00020 ? (0200 >> 3) : 0) | (octal & 00010 ? (0100 >> 3) : 0) | (octal & 00004 ? ((0400 >> 3) >> 3) : 0) | (octal & 00002 ? ((0200 >> 3) >> 3) : 0) | (octal & 00001 ? ((0100 >> 3) >> 3) : 0)));
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89
69 | (octal & RGRP ? S_IRGRP : 0)
executed 89 times by 3 tests: return (( 04000 == 04000 && 02000 == 02000 && 01000 == 01000 && 0400 == 00400 && 0200 == 00200 && 0100 == 00100 && (0400 >> 3) == 00040 && (0200 >> 3) == 00020 && (0100 >> 3) == 00010 && ((0400 >> 3) >> 3) == 00004 && ((0200 >> 3) >> 3) == 00002 && ((0100...100 ? 0100 : 0) | (octal & 00040 ? (0400 >> 3) : 0) | (octal & 00020 ? (0200 >> 3) : 0) | (octal & 00010 ? (0100 >> 3) : 0) | (octal & 00004 ? ((0400 >> 3) >> 3) : 0) | (octal & 00002 ? ((0200 >> 3) >> 3) : 0) | (octal & 00001 ? ((0100 >> 3) >> 3) : 0)));
Executed by:
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89
70 | (octal & WGRP ? S_IWGRP : 0)
executed 89 times by 3 tests: return (( 04000 == 04000 && 02000 == 02000 && 01000 == 01000 && 0400 == 00400 && 0200 == 00200 && 0100 == 00100 && (0400 >> 3) == 00040 && (0200 >> 3) == 00020 && (0100 >> 3) == 00010 && ((0400 >> 3) >> 3) == 00004 && ((0200 >> 3) >> 3) == 00002 && ((0100...100 ? 0100 : 0) | (octal & 00040 ? (0400 >> 3) : 0) | (octal & 00020 ? (0200 >> 3) : 0) | (octal & 00010 ? (0100 >> 3) : 0) | (octal & 00004 ? ((0400 >> 3) >> 3) : 0) | (octal & 00002 ? ((0200 >> 3) >> 3) : 0) | (octal & 00001 ? ((0100 >> 3) >> 3) : 0)));
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89
71 | (octal & XGRP ? S_IXGRP : 0)
executed 89 times by 3 tests: return (( 04000 == 04000 && 02000 == 02000 && 01000 == 01000 && 0400 == 00400 && 0200 == 00200 && 0100 == 00100 && (0400 >> 3) == 00040 && (0200 >> 3) == 00020 && (0100 >> 3) == 00010 && ((0400 >> 3) >> 3) == 00004 && ((0200 >> 3) >> 3) == 00002 && ((0100...100 ? 0100 : 0) | (octal & 00040 ? (0400 >> 3) : 0) | (octal & 00020 ? (0200 >> 3) : 0) | (octal & 00010 ? (0100 >> 3) : 0) | (octal & 00004 ? ((0400 >> 3) >> 3) : 0) | (octal & 00002 ? ((0200 >> 3) >> 3) : 0) | (octal & 00001 ? ((0100 >> 3) >> 3) : 0)));
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89
72 | (octal & ROTH ? S_IROTH : 0)
executed 89 times by 3 tests: return (( 04000 == 04000 && 02000 == 02000 && 01000 == 01000 && 0400 == 00400 && 0200 == 00200 && 0100 == 00100 && (0400 >> 3) == 00040 && (0200 >> 3) == 00020 && (0100 >> 3) == 00010 && ((0400 >> 3) >> 3) == 00004 && ((0200 >> 3) >> 3) == 00002 && ((0100...100 ? 0100 : 0) | (octal & 00040 ? (0400 >> 3) : 0) | (octal & 00020 ? (0200 >> 3) : 0) | (octal & 00010 ? (0100 >> 3) : 0) | (octal & 00004 ? ((0400 >> 3) >> 3) : 0) | (octal & 00002 ? ((0200 >> 3) >> 3) : 0) | (octal & 00001 ? ((0100 >> 3) >> 3) : 0)));
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89
73 | (octal & WOTH ? S_IWOTH : 0)
executed 89 times by 3 tests: return (( 04000 == 04000 && 02000 == 02000 && 01000 == 01000 && 0400 == 00400 && 0200 == 00200 && 0100 == 00100 && (0400 >> 3) == 00040 && (0200 >> 3) == 00020 && (0100 >> 3) == 00010 && ((0400 >> 3) >> 3) == 00004 && ((0200 >> 3) >> 3) == 00002 && ((0100...100 ? 0100 : 0) | (octal & 00040 ? (0400 >> 3) : 0) | (octal & 00020 ? (0200 >> 3) : 0) | (octal & 00010 ? (0100 >> 3) : 0) | (octal & 00004 ? ((0400 >> 3) >> 3) : 0) | (octal & 00002 ? ((0200 >> 3) >> 3) : 0) | (octal & 00001 ? ((0100 >> 3) >> 3) : 0)));
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89
74 | (octal & XOTH ? S_IXOTH : 0)));
executed 89 times by 3 tests: return (( 04000 == 04000 && 02000 == 02000 && 01000 == 01000 && 0400 == 00400 && 0200 == 00200 && 0100 == 00100 && (0400 >> 3) == 00040 && (0200 >> 3) == 00020 && (0100 >> 3) == 00010 && ((0400 >> 3) >> 3) == 00004 && ((0200 >> 3) >> 3) == 00002 && ((0100...100 ? 0100 : 0) | (octal & 00040 ? (0400 >> 3) : 0) | (octal & 00020 ? (0200 >> 3) : 0) | (octal & 00010 ? (0100 >> 3) : 0) | (octal & 00004 ? ((0400 >> 3) >> 3) : 0) | (octal & 00002 ? ((0200 >> 3) >> 3) : 0) | (octal & 00001 ? ((0100 >> 3) >> 3) : 0)));
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89
75}-
76-
77/* Special operations flags. */-
78enum-
79 {-
80 /* For the sentinel at the end of the mode changes array. */-
81 MODE_DONE,-
82-
83 /* The typical case. */-
84 MODE_ORDINARY_CHANGE,-
85-
86 /* In addition to the typical case, affect the execute bits if at-
87 least one execute bit is set already, or if the file is a-
88 directory. */-
89 MODE_X_IF_ANY_X,-
90-
91 /* Instead of the typical case, copy some existing permissions for-
92 u, g, or o onto the other two. Which of u, g, or o is copied-
93 is determined by which bits are set in the 'value' field. */-
94 MODE_COPY_EXISTING-
95 };-
96-
97/* Description of a mode change. */-
98struct mode_change-
99{-
100 char op; /* One of "=+-". */-
101 char flag; /* Special operations flag. */-
102 mode_t affected; /* Set for u, g, o, or a. */-
103 mode_t value; /* Bits to add/remove. */-
104 mode_t mentioned; /* Bits explicitly mentioned. */-
105};-
106-
107/* Return a mode_change array with the specified "=ddd"-style-
108 mode change operation, where NEW_MODE is "ddd" and MENTIONED-
109 contains the bits explicitly mentioned in the mode are MENTIONED. */-
110-
111static struct mode_change *-
112make_node_op_equals (mode_t new_mode, mode_t mentioned)-
113{-
114 struct mode_change *p = xmalloc (2 * sizeof *p);-
115 p->op = '=';-
116 p->flag = MODE_ORDINARY_CHANGE;-
117 p->affected = CHMOD_MODE_BITS;-
118 p->value = new_mode;-
119 p->mentioned = mentioned;-
120 p[1].flag = MODE_DONE;-
121 return p;
executed 69 times by 3 tests: return p;
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69
122}-
123-
124/* Return a pointer to an array of file mode change operations created from-
125 MODE_STRING, an ASCII string that contains either an octal number-
126 specifying an absolute mode, or symbolic mode change operations with-
127 the form:-
128 [ugoa...][[+-=][rwxXstugo...]...][,...]-
129-
130 Return NULL if 'mode_string' does not contain a valid-
131 representation of file mode change operations. */-
132-
133struct mode_change *-
134mode_compile (char const *mode_string)-
135{-
136 /* The array of mode-change directives to be returned. */-
137 struct mode_change *mc;-
138 size_t used = 0;-
139 char const *p;-
140-
141 if ('0' <= *mode_string && *mode_string < '8')
'0' <= *mode_stringDescription
TRUEevaluated 737 times by 3 tests
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FALSEevaluated 49 times by 1 test
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*mode_string < '8'Description
TRUEevaluated 71 times by 3 tests
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FALSEevaluated 666 times by 2 tests
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49-737
142 {-
143 unsigned int octal_mode = 0;-
144 mode_t mode;-
145 mode_t mentioned;-
146-
147 p = mode_string;-
148 do-
149 {-
150 octal_mode = 8 * octal_mode + *p++ - '0';-
151 if (ALLM < octal_mode)
07777 < octal_modeDescription
TRUEnever evaluated
FALSEevaluated 186 times by 3 tests
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0-186
152 return NULL;
never executed: return ((void *)0) ;
0
153 }
executed 186 times by 3 tests: end of block
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186
154 while ('0' <= *p && *p < '8');
'0' <= *pDescription
TRUEevaluated 115 times by 3 tests
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FALSEevaluated 71 times by 3 tests
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*p < '8'Description
TRUEevaluated 115 times by 3 tests
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FALSEnever evaluated
0-115
155-
156 if (*p)
*pDescription
TRUEevaluated 2 times by 1 test
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FALSEevaluated 69 times by 3 tests
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2-69
157 return NULL;
executed 2 times by 1 test: return ((void *)0) ;
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2
158-
159 mode = octal_to_mode (octal_mode);-
160 mentioned = (p - mode_string < 5
p - mode_string < 5Description
TRUEevaluated 67 times by 3 tests
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FALSEevaluated 2 times by 1 test
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2-67
161 ? (mode & (S_ISUID | S_ISGID)) | S_ISVTX | S_IRWXUGO-
162 : CHMOD_MODE_BITS);-
163 return make_node_op_equals (mode, mentioned);
executed 69 times by 3 tests: return make_node_op_equals (mode, mentioned);
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69
164 }-
165-
166 /* Allocate enough space to hold the result. */-
167 {-
168 size_t needed = 1;-
169 for (p = mode_string; *p; p++)
*pDescription
TRUEevaluated 3432 times by 2 tests
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FALSEevaluated 715 times by 2 tests
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715-3432
170 needed += (*p == '=' || *p == '+' || *p == '-');
executed 3432 times by 2 tests: needed += (*p == '=' || *p == '+' || *p == '-');
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*p == '='Description
TRUEevaluated 68 times by 1 test
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FALSEevaluated 3364 times by 2 tests
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*p == '+'Description
TRUEevaluated 603 times by 1 test
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FALSEevaluated 2761 times by 2 tests
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*p == '-'Description
TRUEevaluated 91 times by 2 tests
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FALSEevaluated 2670 times by 2 tests
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68-3432
171 mc = xnmalloc (needed, sizeof *mc);-
172 }-
173-
174 /* One loop iteration for each-
175 '[ugoa]*([-+=]([rwxXst]*|[ugo]))+|[-+=][0-7]+'. */-
176 for (p = mode_string; ; p++)-
177 {-
178 /* Which bits in the mode are operated on. */-
179 mode_t affected = 0;-
180-
181 /* Turn on all the bits in 'affected' for each group given. */-
182 for (;; p++)-
183 switch (*p)-
184 {-
185 default:
executed 3 times by 1 test: default:
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3
186 goto invalid;
executed 3 times by 1 test: goto invalid;
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3
187 case 'u':
executed 591 times by 1 test: case 'u':
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591
188 affected |= S_ISUID | S_IRWXU;-
189 break;
executed 591 times by 1 test: break;
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591
190 case 'g':
executed 25 times by 1 test: case 'g':
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25
191 affected |= S_ISGID | S_IRWXG;-
192 break;
executed 25 times by 1 test: break;
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25
193 case 'o':
executed 17 times by 1 test: case 'o':
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17
194 affected |= S_ISVTX | S_IRWXO;-
195 break;
executed 17 times by 1 test: break;
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17
196 case 'a':
executed 46 times by 2 tests: case 'a':
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46
197 affected |= CHMOD_MODE_BITS;-
198 break;
executed 46 times by 2 tests: break;
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46
199 case '=': case '+': case '-':
executed 68 times by 1 test: case '=':
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executed 602 times by 1 test: case '+':
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executed 83 times by 2 tests: case '-':
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68-602
200 goto no_more_affected;
executed 753 times by 2 tests: goto no_more_affected;
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753
201 }-
202 no_more_affected:;
code before this statement never executed: no_more_affected:
0
203-
204 do-
205 {-
206 char op = *p++;-
207 mode_t value;-
208 mode_t mentioned = 0;-
209 char flag = MODE_COPY_EXISTING;-
210 struct mode_change *change;-
211-
212 switch (*p)-
213 {-
214 case '0': case '1': case '2': case '3':
never executed: case '0':
never executed: case '1':
executed 15 times by 1 test: case '2':
Executed by:
  • chmod
never executed: case '3':
0-15
215 case '4': case '5': case '6': case '7':
never executed: case '4':
executed 2 times by 1 test: case '5':
Executed by:
  • chmod
never executed: case '6':
executed 3 times by 1 test: case '7':
Executed by:
  • chmod
0-3
216 {-
217 unsigned int octal_mode = 0;-
218-
219 do-
220 {-
221 octal_mode = 8 * octal_mode + *p++ - '0';-
222 if (ALLM < octal_mode)
07777 < octal_modeDescription
TRUEnever evaluated
FALSEevaluated 79 times by 1 test
Evaluated by:
  • chmod
0-79
223 goto invalid;
never executed: goto invalid;
0
224 }
executed 79 times by 1 test: end of block
Executed by:
  • chmod
79
225 while ('0' <= *p && *p < '8');
'0' <= *pDescription
TRUEevaluated 59 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 20 times by 1 test
Evaluated by:
  • chmod
*p < '8'Description
TRUEevaluated 59 times by 1 test
Evaluated by:
  • chmod
FALSEnever evaluated
0-59
226-
227 if (affected || (*p && *p != ','))
affectedDescription
TRUEnever evaluated
FALSEevaluated 20 times by 1 test
Evaluated by:
  • chmod
*pDescription
TRUEevaluated 1 time by 1 test
Evaluated by:
  • chmod
FALSEevaluated 19 times by 1 test
Evaluated by:
  • chmod
*p != ','Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • chmod
0-20
228 goto invalid;
never executed: goto invalid;
0
229 affected = mentioned = CHMOD_MODE_BITS;-
230 value = octal_to_mode (octal_mode);-
231 flag = MODE_ORDINARY_CHANGE;-
232 break;
executed 20 times by 1 test: break;
Executed by:
  • chmod
20
233 }-
234-
235 case 'u':
executed 3 times by 1 test: case 'u':
Executed by:
  • chmod
3
236 /* Set the affected bits to the value of the "u" bits-
237 on the same file. */-
238 value = S_IRWXU;-
239 p++;-
240 break;
executed 3 times by 1 test: break;
Executed by:
  • chmod
3
241 case 'g':
executed 3 times by 1 test: case 'g':
Executed by:
  • chmod
3
242 /* Set the affected bits to the value of the "g" bits-
243 on the same file. */-
244 value = S_IRWXG;-
245 p++;-
246 break;
executed 3 times by 1 test: break;
Executed by:
  • chmod
3
247 case 'o':
executed 2 times by 1 test: case 'o':
Executed by:
  • chmod
2
248 /* Set the affected bits to the value of the "o" bits-
249 on the same file. */-
250 value = S_IRWXO;-
251 p++;-
252 break;
executed 2 times by 1 test: break;
Executed by:
  • chmod
2
253-
254 default:
executed 733 times by 2 tests: default:
Executed by:
  • chmod
  • mkdir
733
255 value = 0;-
256 flag = MODE_ORDINARY_CHANGE;-
257-
258 for (;; p++)-
259 switch (*p)-
260 {-
261 case 'r':
executed 597 times by 2 tests: case 'r':
Executed by:
  • chmod
  • mkdir
597
262 value |= S_IRUSR | S_IRGRP | S_IROTH;-
263 break;
executed 597 times by 2 tests: break;
Executed by:
  • chmod
  • mkdir
597
264 case 'w':
executed 634 times by 1 test: case 'w':
Executed by:
  • chmod
634
265 value |= S_IWUSR | S_IWGRP | S_IWOTH;-
266 break;
executed 634 times by 1 test: break;
Executed by:
  • chmod
634
267 case 'x':
executed 607 times by 1 test: case 'x':
Executed by:
  • chmod
607
268 value |= S_IXUSR | S_IXGRP | S_IXOTH;-
269 break;
executed 607 times by 1 test: break;
Executed by:
  • chmod
607
270 case 'X':
executed 4 times by 1 test: case 'X':
Executed by:
  • chmod
4
271 flag = MODE_X_IF_ANY_X;-
272 break;
executed 4 times by 1 test: break;
Executed by:
  • chmod
4
273 case 's':
executed 10 times by 1 test: case 's':
Executed by:
  • chmod
10
274 /* Set the setuid/gid bits if 'u' or 'g' is selected. */-
275 value |= S_ISUID | S_ISGID;-
276 break;
executed 10 times by 1 test: break;
Executed by:
  • chmod
10
277 case 't':
executed 6 times by 1 test: case 't':
Executed by:
  • chmod
6
278 /* Set the "save text image" bit if 'o' is selected. */-
279 value |= S_ISVTX;-
280 break;
executed 6 times by 1 test: break;
Executed by:
  • chmod
6
281 default:
executed 733 times by 2 tests: default:
Executed by:
  • chmod
  • mkdir
733
282 goto no_more_values;
executed 733 times by 2 tests: goto no_more_values;
Executed by:
  • chmod
  • mkdir
733
283 }-
284 no_more_values:;
code before this statement never executed: no_more_values:
0
285 }
executed 733 times by 2 tests: end of block
Executed by:
  • chmod
  • mkdir
733
286-
287 change = &mc[used++];-
288 change->op = op;-
289 change->flag = flag;-
290 change->affected = affected;-
291 change->value = value;-
292 change->mentioned =-
293 (mentioned ? mentioned : affected ? affected & value : value);
mentionedDescription
TRUEevaluated 20 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 741 times by 2 tests
Evaluated by:
  • chmod
  • mkdir
affectedDescription
TRUEevaluated 671 times by 2 tests
Evaluated by:
  • chmod
  • mkdir
FALSEevaluated 70 times by 1 test
Evaluated by:
  • chmod
20-741
294 }
executed 761 times by 2 tests: end of block
Executed by:
  • chmod
  • mkdir
761
295 while (*p == '=' || *p == '+' || *p == '-');
*p == '='Description
TRUEnever evaluated
FALSEevaluated 761 times by 2 tests
Evaluated by:
  • chmod
  • mkdir
*p == '+'Description
TRUEnever evaluated
FALSEevaluated 761 times by 2 tests
Evaluated by:
  • chmod
  • mkdir
*p == '-'Description
TRUEevaluated 8 times by 1 test
Evaluated by:
  • chmod
FALSEevaluated 753 times by 2 tests
Evaluated by:
  • chmod
  • mkdir
0-761
296-
297 if (*p != ',')
*p != ','Description
TRUEevaluated 712 times by 2 tests
Evaluated by:
  • chmod
  • mkdir
FALSEevaluated 41 times by 1 test
Evaluated by:
  • chmod
41-712
298 break;
executed 712 times by 2 tests: break;
Executed by:
  • chmod
  • mkdir
712
299 }
executed 41 times by 1 test: end of block
Executed by:
  • chmod
41
300-
301 if (*p == 0)
*p == 0Description
TRUEevaluated 711 times by 2 tests
Evaluated by:
  • chmod
  • mkdir
FALSEevaluated 1 time by 1 test
Evaluated by:
  • chmod
1-711
302 {-
303 mc[used].flag = MODE_DONE;-
304 return mc;
executed 711 times by 2 tests: return mc;
Executed by:
  • chmod
  • mkdir
711
305 }-
306-
307invalid:
code before this statement executed 1 time by 1 test: invalid:
Executed by:
  • chmod
1
308 free (mc);-
309 return NULL;
executed 4 times by 1 test: return ((void *)0) ;
Executed by:
  • chmod
4
310}-
311-
312/* Return a file mode change operation that sets permissions to match those-
313 of REF_FILE. Return NULL (setting errno) if REF_FILE can't be accessed. */-
314-
315struct mode_change *-
316mode_create_from_ref (const char *ref_file)-
317{-
318 struct stat ref_stats;-
319-
320 if (stat (ref_file, &ref_stats) != 0)
stat (ref_file...ef_stats) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
321 return NULL;
never executed: return ((void *)0) ;
0
322 return make_node_op_equals (ref_stats.st_mode, CHMOD_MODE_BITS);
never executed: return make_node_op_equals (ref_stats.st_mode, ( 04000 | 02000 | 01000 | (0400|0200|0100) | ((0400|0200|0100) >> 3) | (((0400|0200|0100) >> 3) >> 3) ));
0
323}-
324-
325/* Return the file mode bits of OLDMODE (which is the mode of a-
326 directory if DIR), assuming the umask is UMASK_VALUE, adjusted as-
327 indicated by the list of change operations CHANGES. If DIR, the-
328 type 'X' change affects the returned value even if no execute bits-
329 were set in OLDMODE, and set user and group ID bits are preserved-
330 unless CHANGES mentioned them. If PMODE_BITS is not null, store into-
331 *PMODE_BITS a mask denoting file mode bits that are affected by-
332 CHANGES.-
333-
334 The returned value and *PMODE_BITS contain only file mode bits.-
335 For example, they have the S_IFMT bits cleared on a standard-
336 Unix-like host. */-
337-
338mode_t-
339mode_adjust (mode_t oldmode, bool dir, mode_t umask_value,-
340 struct mode_change const *changes, mode_t *pmode_bits)-
341{-
342 /* The adjusted mode. */-
343 mode_t newmode = oldmode & CHMOD_MODE_BITS;-
344-
345 /* File mode bits that CHANGES cares about. */-
346 mode_t mode_bits = 0;-
347-
348 for (; changes->flag != MODE_DONE; changes++)
changes->flag != MODE_DONEDescription
TRUEevaluated 291067 times by 3 tests
Evaluated by:
  • chmod
  • ginstall
  • mkdir
FALSEevaluated 291017 times by 3 tests
Evaluated by:
  • chmod
  • ginstall
  • mkdir
291017-291067
349 {-
350 mode_t affected = changes->affected;-
351 mode_t omit_change =-
352 (dir ? S_ISUID | S_ISGID : 0) & ~ changes->mentioned;
dirDescription
TRUEevaluated 43014 times by 3 tests
Evaluated by:
  • chmod
  • ginstall
  • mkdir
FALSEevaluated 248053 times by 2 tests
Evaluated by:
  • chmod
  • ginstall
43014-248053
353 mode_t value = changes->value;-
354-
355 switch (changes->flag)-
356 {-
357 case MODE_ORDINARY_CHANGE:
executed 291056 times by 3 tests: case MODE_ORDINARY_CHANGE:
Executed by:
  • chmod
  • ginstall
  • mkdir
291056
358 break;
executed 291056 times by 3 tests: break;
Executed by:
  • chmod
  • ginstall
  • mkdir
291056
359-
360 case MODE_COPY_EXISTING:
executed 7 times by 1 test: case MODE_COPY_EXISTING:
Executed by:
  • chmod
7
361 /* Isolate in 'value' the bits in 'newmode' to copy. */-
362 value &= newmode;-
363-
364 /* Copy the isolated bits to the other two parts. */-
365 value |= ((value & (S_IRUSR | S_IRGRP | S_IROTH)
value & ( 0400... >> 3) >> 3) )Description
TRUEevaluated 7 times by 1 test
Evaluated by:
  • chmod
FALSEnever evaluated
0-7
366 ? S_IRUSR | S_IRGRP | S_IROTH : 0)-
367 | (value & (S_IWUSR | S_IWGRP | S_IWOTH)-
368 ? S_IWUSR | S_IWGRP | S_IWOTH : 0)-
369 | (value & (S_IXUSR | S_IXGRP | S_IXOTH)-
370 ? S_IXUSR | S_IXGRP | S_IXOTH : 0));-
371 break;
executed 7 times by 1 test: break;
Executed by:
  • chmod
7
372-
373 case MODE_X_IF_ANY_X:
executed 4 times by 1 test: case MODE_X_IF_ANY_X:
Executed by:
  • chmod
4
374 /* Affect the execute bits if execute bits are already set-
375 or if the file is a directory. */-
376 if ((newmode & (S_IXUSR | S_IXGRP | S_IXOTH)) | dir)
(newmode & ( 0...>> 3) )) | dirDescription
TRUEevaluated 1 time by 1 test
Evaluated by:
  • chmod
FALSEevaluated 3 times by 1 test
Evaluated by:
  • chmod
1-3
377 value |= S_IXUSR | S_IXGRP | S_IXOTH;
executed 1 time by 1 test: value |= 0100 | (0100 >> 3) | ((0100 >> 3) >> 3) ;
Executed by:
  • chmod
1
378 break;
executed 4 times by 1 test: break;
Executed by:
  • chmod
4
379 }-
380-
381 /* If WHO was specified, limit the change to the affected bits.-
382 Otherwise, apply the umask. Either way, omit changes as-
383 requested. */-
384 value &= (affected ? affected : ~umask_value) & ~ omit_change;
affectedDescription
TRUEevaluated 290983 times by 3 tests
Evaluated by:
  • chmod
  • ginstall
  • mkdir
FALSEevaluated 84 times by 1 test
Evaluated by:
  • chmod
84-290983
385-
386 switch (changes->op)-
387 {-
388 case '=':
executed 200160 times by 3 tests: case '=':
Executed by:
  • chmod
  • ginstall
  • mkdir
200160
389 /* If WHO was specified, preserve the previous values of-
390 bits that are not affected by this change operation.-
391 Otherwise, clear all the bits. */-
392 {-
393 mode_t preserved = (affected ? ~affected : 0) | omit_change;
affectedDescription
TRUEevaluated 200152 times by 3 tests
Evaluated by:
  • chmod
  • ginstall
  • mkdir
FALSEevaluated 8 times by 1 test
Evaluated by:
  • chmod
8-200152
394 mode_bits |= CHMOD_MODE_BITS & ~preserved;-
395 newmode = (newmode & preserved) | value;-
396 break;
executed 200160 times by 3 tests: break;
Executed by:
  • chmod
  • ginstall
  • mkdir
200160
397 }-
398-
399 case '+':
executed 90795 times by 1 test: case '+':
Executed by:
  • chmod
90795
400 mode_bits |= value;-
401 newmode |= value;-
402 break;
executed 90795 times by 1 test: break;
Executed by:
  • chmod
90795
403-
404 case '-':
executed 112 times by 2 tests: case '-':
Executed by:
  • chmod
  • mkdir
112
405 mode_bits |= value;-
406 newmode &= ~value;-
407 break;
executed 112 times by 2 tests: break;
Executed by:
  • chmod
  • mkdir
112
408 }-
409 }
executed 291067 times by 3 tests: end of block
Executed by:
  • chmod
  • ginstall
  • mkdir
291067
410-
411 if (pmode_bits)
pmode_bitsDescription
TRUEevaluated 17 times by 2 tests
Evaluated by:
  • ginstall
  • mkdir
FALSEevaluated 291000 times by 2 tests
Evaluated by:
  • chmod
  • ginstall
17-291000
412 *pmode_bits = mode_bits;
executed 17 times by 2 tests: *pmode_bits = mode_bits;
Executed by:
  • ginstall
  • mkdir
17
413 return newmode;
executed 291017 times by 3 tests: return newmode;
Executed by:
  • chmod
  • ginstall
  • mkdir
291017
414}-
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