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-rw-r--r--fs/hfsplus/unicode.c30
1 files changed, 29 insertions, 1 deletions
diff --git a/fs/hfsplus/unicode.c b/fs/hfsplus/unicode.c
index 060c69048c3d..689c8bd721fb 100644
--- a/fs/hfsplus/unicode.c
+++ b/fs/hfsplus/unicode.c
@@ -28,7 +28,8 @@ static inline u16 case_fold(u16 c)
}
/* Compare unicode strings, return values like normal strcmp */
-int hfsplus_unistrcmp(const struct hfsplus_unistr *s1, const struct hfsplus_unistr *s2)
+int hfsplus_strcasecmp(const struct hfsplus_unistr *s1,
+ const struct hfsplus_unistr *s2)
{
u16 len1, len2, c1, c2;
const hfsplus_unichr *p1, *p2;
@@ -59,6 +60,33 @@ int hfsplus_unistrcmp(const struct hfsplus_unistr *s1, const struct hfsplus_unis
}
}
+/* Compare names as a sequence of 16-bit unsigned integers */
+int hfsplus_strcmp(const struct hfsplus_unistr *s1,
+ const struct hfsplus_unistr *s2)
+{
+ u16 len1, len2, c1, c2;
+ const hfsplus_unichr *p1, *p2;
+ int len;
+
+ len1 = be16_to_cpu(s1->length);
+ len2 = be16_to_cpu(s2->length);
+ p1 = s1->unicode;
+ p2 = s2->unicode;
+
+ for (len = min(len1, len2); len > 0; len--) {
+ c1 = be16_to_cpu(*p1);
+ c2 = be16_to_cpu(*p2);
+ if (c1 != c2)
+ return c1 < c2 ? -1 : 1;
+ p1++;
+ p2++;
+ }
+
+ return len1 < len2 ? -1 :
+ len1 > len2 ? 1 : 0;
+}
+
+
#define Hangul_SBase 0xac00
#define Hangul_LBase 0x1100
#define Hangul_VBase 0x1161