aboutsummaryrefslogtreecommitdiff
path: root/coreutils/chmod.c
diff options
context:
space:
mode:
authorEric Andersen <andersen@codepoet.org>1999-10-13 19:03:24 +0000
committerEric Andersen <andersen@codepoet.org>1999-10-13 19:03:24 +0000
commit305a73f5eacd94eefe2f2a5a00034d579ef6b1e7 (patch)
tree98e605870591cad5634811c0a36fc922859dc1c6 /coreutils/chmod.c
parent1b61f41f577a247c7a9534c56966e796facf1494 (diff)
downloadbusybox-w32-305a73f5eacd94eefe2f2a5a00034d579ef6b1e7.tar.gz
busybox-w32-305a73f5eacd94eefe2f2a5a00034d579ef6b1e7.tar.bz2
busybox-w32-305a73f5eacd94eefe2f2a5a00034d579ef6b1e7.zip
Combined stuff
Diffstat (limited to 'coreutils/chmod.c')
-rw-r--r--coreutils/chmod.c198
1 files changed, 0 insertions, 198 deletions
diff --git a/coreutils/chmod.c b/coreutils/chmod.c
deleted file mode 100644
index 9f84d0d37..000000000
--- a/coreutils/chmod.c
+++ /dev/null
@@ -1,198 +0,0 @@
1/*
2 * Mini chmod implementation for busybox
3 *
4 * Copyright (C) 1998 by Erik Andersen <andersee@debian.org>
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 2 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 GNU
14 * 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, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 */
21
22#include <stdio.h>
23#include <grp.h>
24#include <pwd.h>
25#include "internal.h"
26
27
28static mode_t mode=7777;
29
30
31static const char chmod_usage[] = "[-R] MODE[,MODE]... FILE...\n"
32"Each MODE is one or more of the letters ugoa, one of the symbols +-= and\n"
33"one or more of the letters rwxst.\n\n"
34 "\t-R\tchange files and directories recursively.\n";
35
36
37
38static int fileAction(const char *fileName)
39{
40 struct stat statBuf;
41 if ((stat(fileName, &statBuf) < 0) ||
42 (chmod(fileName, mode)) < 0) {
43 perror(fileName);
44 return( FALSE);
45 }
46 return( TRUE);
47}
48
49/* [ugoa]{+|-|=}[rwxstl] */
50int parse_mode( const char* s, mode_t* or, mode_t* and, int* group_execute)
51{
52 mode_t mode = 0;
53 mode_t groups = S_ISVTX;
54 char type;
55 char c;
56
57 do {
58 for ( ; ; ) {
59 switch ( c = *s++ ) {
60 case '\0':
61 return (FALSE);
62 case 'u':
63 groups |= S_ISUID|S_IRWXU;
64 continue;
65 case 'g':
66 groups |= S_ISGID|S_IRWXG;
67 continue;
68 case 'o':
69 groups |= S_IRWXO;
70 continue;
71 case 'a':
72 groups |= S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO;
73 continue;
74 case '+':
75 case '=':
76 case '-':
77 type = c;
78 if ( groups == S_ISVTX ) /* The default is "all" */
79 groups |= S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO;
80 break;
81 default:
82 if ( c >= '0' && c <= '7' && mode == 0 && groups == S_ISVTX ) {
83 *and = 0;
84 *or = strtol(--s, 0, 010);
85 return (TRUE);
86 }
87 else
88 return (FALSE);
89 }
90 break;
91 }
92
93 while ( (c = *s++) != '\0' ) {
94 switch ( c ) {
95 case ',':
96 break;
97 case 'r':
98 mode |= S_IRUSR|S_IRGRP|S_IROTH;
99 continue;
100 case 'w':
101 mode |= S_IWUSR|S_IWGRP|S_IWOTH;
102 continue;
103 case 'x':
104 mode |= S_IXUSR|S_IXGRP|S_IXOTH;
105 continue;
106 case 's':
107 if ( group_execute != 0 && (groups & S_IRWXG) ) {
108 if ( *group_execute < 0 )
109 return (FALSE);
110 if ( type != '-' ) {
111 mode |= S_IXGRP;
112 *group_execute = 1;
113 }
114 }
115 mode |= S_ISUID|S_ISGID;
116 continue;
117 case 'l':
118 if ( *group_execute > 0 )
119 return (FALSE);
120 if ( type != '-' ) {
121 *and &= ~S_IXGRP;
122 *group_execute = -1;
123 }
124 mode |= S_ISGID;
125 groups |= S_ISGID;
126 continue;
127 case 't':
128 mode |= S_ISVTX;
129 continue;
130 default:
131 return (FALSE);
132 }
133 break;
134 }
135 switch ( type ) {
136 case '=':
137 *and &= ~(groups);
138 /* fall through */
139 case '+':
140 *or |= mode & groups;
141 break;
142 case '-':
143 *and &= ~(mode & groups);
144 *or &= *and;
145 break;
146 }
147 } while ( c == ',' );
148 return (TRUE);
149}
150
151
152int chmod_main(int argc, char **argv)
153{
154 int recursiveFlag=FALSE;
155 mode_t andWithMode = S_ISVTX|S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO;
156 mode_t orWithMode = 0;
157 char *invocationName=*argv;
158
159 if (argc < 3) {
160 fprintf(stderr, "Usage: %s %s", invocationName, chmod_usage);
161 exit( FALSE);
162 }
163 argc--;
164 argv++;
165
166 /* Parse options */
167 while (**argv == '-') {
168 while (*++(*argv)) switch (**argv) {
169 case 'R':
170 recursiveFlag = TRUE;
171 break;
172 default:
173 fprintf(stderr, "Unknown option: %c\n", **argv);
174 exit( FALSE);
175 }
176 argc--;
177 argv++;
178 }
179
180 /* Find the selected group */
181 if ( parse_mode(*argv, &orWithMode, &andWithMode, 0) == FALSE ) {
182 fprintf(stderr, "%s: Unknown mode: %s\n", invocationName, *argv);
183 exit( FALSE);
184 }
185 mode &= andWithMode;
186 mode |= orWithMode;
187
188 /* Ok, ready to do the deed now */
189 if (argc <= 1) {
190 fprintf(stderr, "%s: too few arguments", invocationName);
191 exit( FALSE);
192 }
193 while (argc-- > 1) {
194 argv++;
195 recursiveAction( *argv, recursiveFlag, TRUE, fileAction, fileAction);
196 }
197 exit(TRUE);
198}
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-03-17 20:44:31 +0000