2 * Copyright 1991 by Vicent Archer. All rights reserved.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included
12 * in all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20 * DEALINGS IN THE SOFTWARE.
23 #include <afsconfig.h>
24 #include <afs/param.h>
29 #include "parsemode.h"
33 parsemode(char *symbolic, afs_uint32 oldmode)
35 afs_uint32 who, mask, u_mask = 022, newmode, tmpmask;
38 newmode = oldmode & ALL_MODES;
41 for (; *symbolic; symbolic++) {
42 if (*symbolic == 'a') {
46 if (*symbolic == 'u') {
50 if (*symbolic == 'g') {
54 if (*symbolic == 'o') {
60 if (!*symbolic || *symbolic == ',') {
61 fs_Die(EINVAL, "invalid mode");
69 fs_Die(EINVAL, "invalid mode");
77 for (; *symbolic; symbolic++) {
78 if (*symbolic == 'u') {
79 tmpmask = newmode & S_IRWXU;
80 mask |= tmpmask | (tmpmask << 3) | (tmpmask << 6);
84 if (*symbolic == 'g') {
85 tmpmask = newmode & S_IRWXG;
86 mask |= tmpmask | (tmpmask >> 3) | (tmpmask << 3);
90 if (*symbolic == 'o') {
91 tmpmask = newmode & S_IRWXO;
92 mask |= tmpmask | (tmpmask >> 3) | (tmpmask >> 6);
96 if (*symbolic == 'r') {
97 mask |= S_IRUSR | S_IRGRP | S_IROTH;
100 if (*symbolic == 'w') {
101 mask |= S_IWUSR | S_IWGRP | S_IWOTH;
104 if (*symbolic == 'x') {
108 if (*symbolic == 's') {
109 mask |= S_ISUID | S_ISGID;
112 if (*symbolic == 'X') {
113 if (S_ISDIR(oldmode) || (oldmode & EXE_MODES))
117 if (*symbolic == 't') {
132 newmode |= who & mask;
134 newmode |= mask & (~u_mask);
138 newmode &= ~(who & mask);
140 newmode &= ~mask | u_mask;