diff options
Diffstat (limited to 'e2fsprogs/ext2fs/dirhash.c')
| -rw-r--r-- | e2fsprogs/ext2fs/dirhash.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/e2fsprogs/ext2fs/dirhash.c b/e2fsprogs/ext2fs/dirhash.c index 4d18593..39678a6 100644 --- a/e2fsprogs/ext2fs/dirhash.c +++ b/e2fsprogs/ext2fs/dirhash.c @@ -2,7 +2,7 @@ * dirhash.c -- Calculate the hash of a directory entry * * Copyright (c) 2001 Daniel Phillips - * + * * Copyright (c) 2002 Theodore Ts'o. * * %Begin-Header% @@ -25,7 +25,7 @@ * (see Applied Cryptography, 2nd edition, p448). * * Jeremy Fitzhardinge <jeremy@zip.com.au> 1998 - * + * * This code is made available under the terms of the GPL */ #define DELTA 0x9E3779B9 @@ -37,10 +37,10 @@ static void TEA_transform(__u32 buf[4], __u32 const in[]) __u32 a = in[0], b = in[1], c = in[2], d = in[3]; int n = 16; - do { - sum += DELTA; - b0 += ((b1 << 4)+a) ^ (b1+sum) ^ ((b1 >> 5)+b); - b1 += ((b0 << 4)+c) ^ (b0+sum) ^ ((b0 >> 5)+d); + do { + sum += DELTA; + b0 += ((b1 << 4)+a) ^ (b1+sum) ^ ((b1 >> 5)+b); + b1 += ((b0 << 4)+c) ^ (b0+sum) ^ ((b0 >> 5)+d); } while(--n); buf[0] += b0; @@ -121,7 +121,7 @@ static ext2_dirhash_t dx_hack_hash (const char *name, int len) __u32 hash0 = 0x12a3fe2d, hash1 = 0x37abe8f9; while (len--) { __u32 hash = hash1 + (hash0 ^ (*name++ * 7152373)); - + if (hash & 0x80000000) hash -= 0x7fffffff; hash1 = hash0; hash0 = hash; @@ -160,11 +160,11 @@ static void str2hashbuf(const char *msg, int len, __u32 *buf, int num) * Returns the hash of a filename. If len is 0 and name is NULL, then * this function can be used to test whether or not a hash version is * supported. - * + * * The seed is an 4 longword (32 bits) "secret" which can be used to * uniquify a hash. If the seed is all zero's, then some default seed * may be used. - * + * * A particular hash version specifies whether or not the seed is * represented, and whether or not the returned hash is 32 bits or 64 * bits. 32 bit hashes will return 0 for the minor hash. @@ -178,7 +178,7 @@ errcode_t ext2fs_dirhash(int version, const char *name, int len, __u32 minor_hash = 0; const char *p; int i; - __u32 in[8], buf[4]; + __u32 in[8], buf[4]; /* Initialize the default seed for the hash checksum functions */ buf[0] = 0x67452301; @@ -195,7 +195,7 @@ errcode_t ext2fs_dirhash(int version, const char *name, int len, if (i < 4) memcpy(buf, seed, sizeof(buf)); } - + switch (version) { case EXT2_HASH_LEGACY: hash = dx_hack_hash(name, len); |