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author | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
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committer | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
commit | 5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch) | |
tree | 4470480d904b65cf14ca524f96f79eca818c3eaf /REORG.TODO/crypt/crypt.c | |
parent | 199fc19d3aaaf57944ef036e15904febe877fc93 (diff) | |
download | glibc-zack/build-layout-experiment.tar.gz |
Prepare for radical source tree reorganization.zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).
Diffstat (limited to 'REORG.TODO/crypt/crypt.c')
-rw-r--r-- | REORG.TODO/crypt/crypt.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/REORG.TODO/crypt/crypt.c b/REORG.TODO/crypt/crypt.c new file mode 100644 index 0000000000..17f61e35c2 --- /dev/null +++ b/REORG.TODO/crypt/crypt.c @@ -0,0 +1,115 @@ +/* + * UFC-crypt: ultra fast crypt(3) implementation + * + * Copyright (C) 1991-2017 Free Software Foundation, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; see the file COPYING.LIB. If not, + * see <http://www.gnu.org/licenses/>. + * + * @(#)crypt.c 2.25 12/20/96 + * + * Semiportable C version + * + */ + +#include "crypt-private.h" + +#ifdef _UFC_32_ + +/* + * 32 bit version + */ + +#define SBA(sb, v) (*(long32*)((char*)(sb)+(v))) + +void +_ufc_doit_r (ufc_long itr, struct crypt_data * __restrict __data, + ufc_long *res) +{ + int i; + long32 s, *k; + long32 *sb01 = (long32*)__data->sb0; + long32 *sb23 = (long32*)__data->sb2; + long32 l1, l2, r1, r2; + + l1 = (long32)res[0]; l2 = (long32)res[1]; + r1 = (long32)res[2]; r2 = (long32)res[3]; + + while(itr--) { + k = (long32*)__data->keysched; + for(i=8; i--; ) { + s = *k++ ^ r1; + l1 ^= SBA(sb01, s & 0xffff); l2 ^= SBA(sb01, (s & 0xffff)+4); + l1 ^= SBA(sb01, s >>= 16 ); l2 ^= SBA(sb01, (s )+4); + s = *k++ ^ r2; + l1 ^= SBA(sb23, s & 0xffff); l2 ^= SBA(sb23, (s & 0xffff)+4); + l1 ^= SBA(sb23, s >>= 16 ); l2 ^= SBA(sb23, (s )+4); + + s = *k++ ^ l1; + r1 ^= SBA(sb01, s & 0xffff); r2 ^= SBA(sb01, (s & 0xffff)+4); + r1 ^= SBA(sb01, s >>= 16 ); r2 ^= SBA(sb01, (s )+4); + s = *k++ ^ l2; + r1 ^= SBA(sb23, s & 0xffff); r2 ^= SBA(sb23, (s & 0xffff)+4); + r1 ^= SBA(sb23, s >>= 16 ); r2 ^= SBA(sb23, (s )+4); + } + s=l1; l1=r1; r1=s; s=l2; l2=r2; r2=s; + } + res[0] = l1; res[1] = l2; res[2] = r1; res[3] = r2; +} + +#endif + +#ifdef _UFC_64_ + +/* + * 64 bit version + */ + +#define SBA(sb, v) (*(long64*)((char*)(sb)+(v))) + +void +_ufc_doit_r (ufc_long itr, struct crypt_data * __restrict __data, + ufc_long *res) +{ + int i; + long64 l, r, s, *k; + long64 *sb01 = (long64*)__data->sb0; + long64 *sb23 = (long64*)__data->sb2; + + l = (((long64)res[0]) << 32) | ((long64)res[1]); + r = (((long64)res[2]) << 32) | ((long64)res[3]); + + while(itr--) { + k = (long64*)__data->keysched; + for(i=8; i--; ) { + s = *k++ ^ r; + l ^= SBA(sb23, (s ) & 0xffff); + l ^= SBA(sb23, (s >>= 16) & 0xffff); + l ^= SBA(sb01, (s >>= 16) & 0xffff); + l ^= SBA(sb01, (s >>= 16) ); + + s = *k++ ^ l; + r ^= SBA(sb23, (s ) & 0xffff); + r ^= SBA(sb23, (s >>= 16) & 0xffff); + r ^= SBA(sb01, (s >>= 16) & 0xffff); + r ^= SBA(sb01, (s >>= 16) ); + } + s=l; l=r; r=s; + } + + res[0] = l >> 32; res[1] = l & 0xffffffff; + res[2] = r >> 32; res[3] = r & 0xffffffff; +} + +#endif |