diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/nls.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/linux/nls.h b/include/linux/nls.h index 1c657d4f0cf3..816c04ad7381 100644 --- a/include/linux/nls.h +++ b/include/linux/nls.h @@ -33,6 +33,31 @@ extern int utf8_mbstowcs(wchar_t *, const __u8 *, int); extern int utf8_wctomb(__u8 *, wchar_t, int); extern int utf8_wcstombs(__u8 *, const wchar_t *, int); +static inline unsigned char nls_tolower(struct nls_table *t, unsigned char c) +{ + unsigned char nc = t->charset2lower[c]; + + return nc ? nc : c; +} + +static inline unsigned char nls_toupper(struct nls_table *t, unsigned char c) +{ + unsigned char nc = t->charset2upper[c]; + + return nc ? nc : c; +} + +static inline int nls_strnicmp(struct nls_table *t, const unsigned char *s1, + const unsigned char *s2, int len) +{ + while (len--) { + if (nls_tolower(t, *s1++) != nls_tolower(t, *s2++)) + return 1; + } + + return 0; +} + #define MODULE_ALIAS_NLS(name) MODULE_ALIAS("nls_" __stringify(name)) #endif /* _LINUX_NLS_H */ |