diff options
Diffstat (limited to 'fs/hfsplus/unicode.c')
| -rw-r--r-- | fs/hfsplus/unicode.c | 30 |
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 |