namei.c (42249094f79422fbf5ed4b54eeb48ff096809b8f) namei.c (f643ff550afbc82a2bc7026f4a6d64427e4fbc99)
1/*
2 * linux/fs/isofs/namei.c
3 *
4 * (C) 1992 Eric Youngdale Modified for ISO 9660 filesystem.
5 *
6 * (C) 1991 Linus Torvalds - minix filesystem
7 */
8

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13 * ok, we cannot use strncmp, as the name is not in our data space.
14 * Thus we'll have to use isofs_match. No big problem. Match also makes
15 * some sanity tests.
16 */
17static int
18isofs_cmp(struct dentry *dentry, const char *compare, int dlen)
19{
20 struct qstr qstr;
1/*
2 * linux/fs/isofs/namei.c
3 *
4 * (C) 1992 Eric Youngdale Modified for ISO 9660 filesystem.
5 *
6 * (C) 1991 Linus Torvalds - minix filesystem
7 */
8

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13 * ok, we cannot use strncmp, as the name is not in our data space.
14 * Thus we'll have to use isofs_match. No big problem. Match also makes
15 * some sanity tests.
16 */
17static int
18isofs_cmp(struct dentry *dentry, const char *compare, int dlen)
19{
20 struct qstr qstr;
21
22 if (!compare)
23 return 1;
24
25 /* check special "." and ".." files */
26 if (dlen == 1) {
27 /* "." */
28 if (compare[0] == 0) {
29 if (!dentry->d_name.len)
30 return 0;
31 compare = ".";
32 } else if (compare[0] == 1) {
33 compare = "..";
34 dlen = 2;
35 }
36 }
37
38 qstr.name = compare;
39 qstr.len = dlen;
40 return dentry->d_op->d_compare(NULL, NULL, dentry->d_name.len, dentry->d_name.name, &qstr);
41}
42
43/*
44 * isofs_find_entry()
45 *

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141 * respectively, is set
142 */
143 match = 0;
144 if (dlen > 0 &&
145 (!sbi->s_hide ||
146 (!(de->flags[-sbi->s_high_sierra] & 1))) &&
147 (sbi->s_showassoc ||
148 (!(de->flags[-sbi->s_high_sierra] & 4)))) {
21 qstr.name = compare;
22 qstr.len = dlen;
23 return dentry->d_op->d_compare(NULL, NULL, dentry->d_name.len, dentry->d_name.name, &qstr);
24}
25
26/*
27 * isofs_find_entry()
28 *

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124 * respectively, is set
125 */
126 match = 0;
127 if (dlen > 0 &&
128 (!sbi->s_hide ||
129 (!(de->flags[-sbi->s_high_sierra] & 1))) &&
130 (sbi->s_showassoc ||
131 (!(de->flags[-sbi->s_high_sierra] & 4)))) {
149 match = (isofs_cmp(dentry, dpnt, dlen) == 0);
132 if (dpnt && (dlen > 1 || dpnt[0] > 1))
133 match = (isofs_cmp(dentry, dpnt, dlen) == 0);
150 }
151 if (match) {
152 isofs_normalize_block_and_offset(de,
153 &block_saved,
154 &offset_saved);
155 *block_rv = block_saved;
156 *offset_rv = offset_saved;
157 brelse(bh);

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135 if (match) {
136 isofs_normalize_block_and_offset(de,
137 &block_saved,
138 &offset_saved);
139 *block_rv = block_saved;
140 *offset_rv = offset_saved;
141 brelse(bh);

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