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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /fs/nls/nls_utf8.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'fs/nls/nls_utf8.c')
-rw-r--r--fs/nls/nls_utf8.c61
1 files changed, 61 insertions, 0 deletions
diff --git a/fs/nls/nls_utf8.c b/fs/nls/nls_utf8.c
new file mode 100644
index 000000000000..aa2c42fdd977
--- /dev/null
+++ b/fs/nls/nls_utf8.c
@@ -0,0 +1,61 @@
1/*
2 * Module for handling utf8 just like any other charset.
3 * By Urban Widmark 2000
4 */
5
6#include <linux/module.h>
7#include <linux/kernel.h>
8#include <linux/string.h>
9#include <linux/nls.h>
10#include <linux/errno.h>
11
12static unsigned char identity[256];
13
14static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
15{
16 int n;
17
18 if ( (n = utf8_wctomb(out, uni, boundlen)) == -1) {
19 *out = '?';
20 return -EINVAL;
21 }
22 return n;
23}
24
25static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
26{
27 int n;
28
29 if ( (n = utf8_mbtowc(uni, rawstring, boundlen)) == -1) {
30 *uni = 0x003f; /* ? */
31 n = -EINVAL;
32 }
33 return n;
34}
35
36static struct nls_table table = {
37 .charset = "utf8",
38 .uni2char = uni2char,
39 .char2uni = char2uni,
40 .charset2lower = identity, /* no conversion */
41 .charset2upper = identity,
42 .owner = THIS_MODULE,
43};
44
45static int __init init_nls_utf8(void)
46{
47 int i;
48 for (i=0; i<256; i++)
49 identity[i] = i;
50
51 return register_nls(&table);
52}
53
54static void __exit exit_nls_utf8(void)
55{
56 unregister_nls(&table);
57}
58
59module_init(init_nls_utf8)
60module_exit(exit_nls_utf8)
61MODULE_LICENSE("Dual BSD/GPL");