Signed-off-by: Gabriel Krisman Bertazi <[email protected]>
---
include/linux/nls.h | 28 +++++++++++++++++++++++++++-
1 file changed, 27 insertions(+), 1 deletion(-)
diff --git a/include/linux/nls.h b/include/linux/nls.h
index 72698d524b42..efd3712f0e81 100644
--- a/include/linux/nls.h
+++ b/include/linux/nls.h
@@ -4,6 +4,7 @@
#include <linux/init.h>
#include <linux/string.h>
+#include <linux/errno.h>
/* Unicode has changed over the years. Unicode code points no longer
* fit into 16 bits; as of Unicode 5 valid code points range from 0
@@ -38,7 +39,12 @@ struct nls_ops {
unsigned int c);
unsigned char (*uppercase)(const struct nls_table *charset,
unsigned int c);
-
+ int (*casefold)(const struct nls_table *charset,
+ const unsigned char *str, size_t len,
+ unsigned char **folded);
+ int (*normalize)(const struct nls_table *charset,
+ const unsigned char *str, size_t len,
+ unsigned char **normalized);
};
struct nls_table {
@@ -156,6 +162,26 @@ static inline int nls_strnicmp(struct nls_table *t, const
unsigned char *s1,
return nls_strncasecmp(t, s1, len, s2, len);
}
+static inline int nls_casefold(const struct nls_table *charset,
+ const unsigned char *str, size_t len,
+ unsigned char **folded)
+{
+ if (charset->ops->casefold)
+ return charset->ops->casefold(charset, str, len, folded);
+
+ return -ENOTSUPP;
+}
+
+static inline int nls_normalize(const struct nls_table *charset,
+ const unsigned char *str, size_t len,
+ unsigned char **normalized)
+{
+ if (charset->ops->normalize)
+ return charset->ops->normalize(charset, str, len, normalized);
+
+ return -ENOTSUPP;
+}
+
/*
* nls_nullsize - return length of null character for codepage
* @codepage - codepage for which to return length of NULL terminator
--
2.17.0
