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[PATCH] hfs: add HFSX support

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Add support for HFSX, which allows for case-sensitive filenames.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
David Elliott 2006-01-18 17:43:08 -08:00 • committed by Linus Torvalds
parent 7cf3cc3036
commit 2179d372d9
8 changed files with 90 additions and 23 deletions
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30
fs/hfsplus/unicode.c
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@ -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