remove ARM and Mozilla SHA1 implementations

They are both slower than the new BLK_SHA1 implementation, so it is
pointless to keep them around.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/Makefile b/Makefile
index e6df8ecde68edbfddf7266de3aa11912df63b30e..134606b9b7628805d81a95e1e44cb2682fc4bbb0 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -16,7 +16,7 @@ all::
 # when attempting to read from an fopen'ed directory.
 #
 # Define NO_OPENSSL environment variable if you do not have OpenSSL.
-# This also implies MOZILLA_SHA1.
+# This also implies BLK_SHA1.
 #
 # Define NO_CURL if you do not have libcurl installed.  git-http-pull and
 # git-http-push are not built, and you cannot use http:// and https://
@@ -91,14 +91,6 @@ all::
 # Define PPC_SHA1 environment variable when running make to make use of
 # a bundled SHA1 routine optimized for PowerPC.
 #
-# Define ARM_SHA1 environment variable when running make to make use of
-# a bundled SHA1 routine optimized for ARM.
-#
-# Define MOZILLA_SHA1 environment variable when running make to make use of
-# a bundled SHA1 routine coming from Mozilla. It is GPL'd and should be fast
-# on non-x86 architectures (e.g. PowerPC), while the OpenSSL version (default
-# choice) has very fast version optimized for i586.
-#
 # Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin).
 #
 # Define NEEDS_LIBICONV if linking with libc is not enough (Darwin).
@@ -926,10 +918,6 @@ else
        NO_PTHREADS = YesPlease
 endif
 endif
-ifneq (,$(findstring arm,$(uname_M)))
-       ARM_SHA1 = YesPlease
-       NO_MKSTEMPS = YesPlease
-endif
 
 -include config.mak.autogen
 -include config.mak
@@ -1022,7 +1010,7 @@ ifndef NO_OPENSSL
        endif
 else
        BASIC_CFLAGS += -DNO_OPENSSL
-       MOZILLA_SHA1 = 1
+       BLK_SHA1 = 1
        OPENSSL_LIBSSL =
 endif
 ifdef NEEDS_SSL_WITH_CRYPTO
@@ -1178,21 +1166,11 @@ else
 ifdef PPC_SHA1
        SHA1_HEADER = "ppc/sha1.h"
        LIB_OBJS += ppc/sha1.o ppc/sha1ppc.o
-else
-ifdef ARM_SHA1
-       SHA1_HEADER = "arm/sha1.h"
-       LIB_OBJS += arm/sha1.o arm/sha1_arm.o
-else
-ifdef MOZILLA_SHA1
-       SHA1_HEADER = "mozilla-sha1/sha1.h"
-       LIB_OBJS += mozilla-sha1/sha1.o
 else
        SHA1_HEADER = <openssl/sha.h>
        EXTLIBS += $(LIB_4_CRYPTO)
 endif
 endif
-endif
-endif
 ifdef NO_PERL_MAKEMAKER
        export NO_PERL_MAKEMAKER
 endif

diff --git a/arm/sha1.c b/arm/sha1.c
deleted file mode 100644 (file)
index c61ad4a..0000000
--- a/arm/sha1.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * SHA-1 implementation optimized for ARM
- *
- * Copyright:   (C) 2005 by Nicolas Pitre <nico@cam.org>
- * Created:     September 17, 2005
- */
-
-#include <string.h>
-#include "sha1.h"
-
-extern void arm_sha_transform(uint32_t *hash, const unsigned char *data, uint32_t *W);
-
-void arm_SHA1_Init(arm_SHA_CTX *c)
-{
-       c->len = 0;
-       c->hash[0] = 0x67452301;
-       c->hash[1] = 0xefcdab89;
-       c->hash[2] = 0x98badcfe;
-       c->hash[3] = 0x10325476;
-       c->hash[4] = 0xc3d2e1f0;
-}
-
-void arm_SHA1_Update(arm_SHA_CTX *c, const void *p, unsigned long n)
-{
-       uint32_t workspace[80];
-       unsigned int partial;
-       unsigned long done;
-
-       partial = c->len & 0x3f;
-       c->len += n;
-       if ((partial + n) >= 64) {
-               if (partial) {
-                       done = 64 - partial;
-                       memcpy(c->buffer + partial, p, done);
-                       arm_sha_transform(c->hash, c->buffer, workspace);
-                       partial = 0;
-               } else
-                       done = 0;
-               while (n >= done + 64) {
-                       arm_sha_transform(c->hash, p + done, workspace);
-                       done += 64;
-               }
-       } else
-               done = 0;
-       if (n - done)
-               memcpy(c->buffer + partial, p + done, n - done);
-}
-
-void arm_SHA1_Final(unsigned char *hash, arm_SHA_CTX *c)
-{
-       uint64_t bitlen;
-       uint32_t bitlen_hi, bitlen_lo;
-       unsigned int i, offset, padlen;
-       unsigned char bits[8];
-       static const unsigned char padding[64] = { 0x80, };
-
-       bitlen = c->len << 3;
-       offset = c->len & 0x3f;
-       padlen = ((offset < 56) ? 56 : (64 + 56)) - offset;
-       arm_SHA1_Update(c, padding, padlen);
-
-       bitlen_hi = bitlen >> 32;
-       bitlen_lo = bitlen & 0xffffffff;
-       bits[0] = bitlen_hi >> 24;
-       bits[1] = bitlen_hi >> 16;
-       bits[2] = bitlen_hi >> 8;
-       bits[3] = bitlen_hi;
-       bits[4] = bitlen_lo >> 24;
-       bits[5] = bitlen_lo >> 16;
-       bits[6] = bitlen_lo >> 8;
-       bits[7] = bitlen_lo;
-       arm_SHA1_Update(c, bits, 8);
-
-       for (i = 0; i < 5; i++) {
-               uint32_t v = c->hash[i];
-               hash[0] = v >> 24;
-               hash[1] = v >> 16;
-               hash[2] = v >> 8;
-               hash[3] = v;
-               hash += 4;
-       }
-}

diff --git a/arm/sha1.h b/arm/sha1.h
deleted file mode 100644 (file)
index b61b618..0000000
--- a/arm/sha1.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * SHA-1 implementation optimized for ARM
- *
- * Copyright:  (C) 2005 by Nicolas Pitre <nico@cam.org>
- * Created:    September 17, 2005
- */
-
-#include <stdint.h>
-
-typedef struct {
-       uint64_t len;
-       uint32_t hash[5];
-       unsigned char buffer[64];
-} arm_SHA_CTX;
-
-void arm_SHA1_Init(arm_SHA_CTX *c);
-void arm_SHA1_Update(arm_SHA_CTX *c, const void *p, unsigned long n);
-void arm_SHA1_Final(unsigned char *hash, arm_SHA_CTX *c);
-
-#define git_SHA_CTX    arm_SHA_CTX
-#define git_SHA1_Init  arm_SHA1_Init
-#define git_SHA1_Update        arm_SHA1_Update
-#define git_SHA1_Final arm_SHA1_Final

diff --git a/arm/sha1_arm.S b/arm/sha1_arm.S
deleted file mode 100644 (file)
index 41e9263..0000000
--- a/arm/sha1_arm.S
+++ /dev/null
@@ -1,183 +0,0 @@
-/*
- *  SHA transform optimized for ARM
- *
- *  Copyright: (C) 2005 by Nicolas Pitre <nico@cam.org>
- *  Created:   September 17, 2005
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
- */
-
-       .text
-       .globl  arm_sha_transform
-
-/*
- * void sha_transform(uint32_t *hash, const unsigned char *data, uint32_t *W);
- *
- * note: the "data" pointer may be unaligned.
- */
-
-arm_sha_transform:
-
-       stmfd   sp!, {r4 - r8, lr}
-
-       @ for (i = 0; i < 16; i++)
-       @         W[i] = ntohl(((uint32_t *)data)[i]);
-
-#ifdef __ARMEB__
-       mov     r4, r0
-       mov     r0, r2
-       mov     r2, #64
-       bl      memcpy
-       mov     r2, r0
-       mov     r0, r4
-#else
-       mov     r3, r2
-       mov     lr, #16
-1:     ldrb    r4, [r1], #1
-       ldrb    r5, [r1], #1
-       ldrb    r6, [r1], #1
-       ldrb    r7, [r1], #1
-       subs    lr, lr, #1
-       orr     r5, r5, r4, lsl #8
-       orr     r6, r6, r5, lsl #8
-       orr     r7, r7, r6, lsl #8
-       str     r7, [r3], #4
-       bne     1b
-#endif
-
-       @ for (i = 0; i < 64; i++)
-       @         W[i+16] = ror(W[i+13] ^ W[i+8] ^ W[i+2] ^ W[i], 31);
-
-       sub     r3, r2, #4
-       mov     lr, #64
-2:     ldr     r4, [r3, #4]!
-       subs    lr, lr, #1
-       ldr     r5, [r3, #8]
-       ldr     r6, [r3, #32]
-       ldr     r7, [r3, #52]
-       eor     r4, r4, r5
-       eor     r4, r4, r6
-       eor     r4, r4, r7
-       mov     r4, r4, ror #31
-       str     r4, [r3, #64]
-       bne     2b
-
-       /*
-        * The SHA functions are:
-        *
-        * f1(B,C,D) = (D ^ (B & (C ^ D)))
-        * f2(B,C,D) = (B ^ C ^ D)
-        * f3(B,C,D) = ((B & C) | (D & (B | C)))
-        *
-        * Then the sub-blocks are processed as follows:
-        *
-        * A' = ror(A, 27) + f(B,C,D) + E + K + *W++
-        * B' = A
-        * C' = ror(B, 2)
-        * D' = C
-        * E' = D
-        *
-        * We therefore unroll each loop 5 times to avoid register shuffling.
-        * Also the ror for C (and also D and E which are successivelyderived
-        * from it) is applied in place to cut on an additional mov insn for
-        * each round.
-        */
-
-       .macro  sha_f1, A, B, C, D, E
-       ldr     r3, [r2], #4
-       eor     ip, \C, \D
-       add     \E, r1, \E, ror #2
-       and     ip, \B, ip, ror #2
-       add     \E, \E, \A, ror #27
-       eor     ip, ip, \D, ror #2
-       add     \E, \E, r3
-       add     \E, \E, ip
-       .endm
-
-       .macro  sha_f2, A, B, C, D, E
-       ldr     r3, [r2], #4
-       add     \E, r1, \E, ror #2
-       eor     ip, \B, \C, ror #2
-       add     \E, \E, \A, ror #27
-       eor     ip, ip, \D, ror #2
-       add     \E, \E, r3
-       add     \E, \E, ip
-       .endm
-
-       .macro  sha_f3, A, B, C, D, E
-       ldr     r3, [r2], #4
-       add     \E, r1, \E, ror #2
-       orr     ip, \B, \C, ror #2
-       add     \E, \E, \A, ror #27
-       and     ip, ip, \D, ror #2
-       add     \E, \E, r3
-       and     r3, \B, \C, ror #2
-       orr     ip, ip, r3
-       add     \E, \E, ip
-       .endm
-
-       ldmia   r0, {r4 - r8}
-
-       mov     lr, #4
-       ldr     r1, .L_sha_K + 0
-
-       /* adjust initial values */
-       mov     r6, r6, ror #30
-       mov     r7, r7, ror #30
-       mov     r8, r8, ror #30
-
-3:     subs    lr, lr, #1
-       sha_f1  r4, r5, r6, r7, r8
-       sha_f1  r8, r4, r5, r6, r7
-       sha_f1  r7, r8, r4, r5, r6
-       sha_f1  r6, r7, r8, r4, r5
-       sha_f1  r5, r6, r7, r8, r4
-       bne     3b
-
-       ldr     r1, .L_sha_K + 4
-       mov     lr, #4
-
-4:     subs    lr, lr, #1
-       sha_f2  r4, r5, r6, r7, r8
-       sha_f2  r8, r4, r5, r6, r7
-       sha_f2  r7, r8, r4, r5, r6
-       sha_f2  r6, r7, r8, r4, r5
-       sha_f2  r5, r6, r7, r8, r4
-       bne     4b
-
-       ldr     r1, .L_sha_K + 8
-       mov     lr, #4
-
-5:     subs    lr, lr, #1
-       sha_f3  r4, r5, r6, r7, r8
-       sha_f3  r8, r4, r5, r6, r7
-       sha_f3  r7, r8, r4, r5, r6
-       sha_f3  r6, r7, r8, r4, r5
-       sha_f3  r5, r6, r7, r8, r4
-       bne     5b
-
-       ldr     r1, .L_sha_K + 12
-       mov     lr, #4
-
-6:     subs    lr, lr, #1
-       sha_f2  r4, r5, r6, r7, r8
-       sha_f2  r8, r4, r5, r6, r7
-       sha_f2  r7, r8, r4, r5, r6
-       sha_f2  r6, r7, r8, r4, r5
-       sha_f2  r5, r6, r7, r8, r4
-       bne     6b
-
-       ldmia   r0, {r1, r2, r3, ip, lr}
-       add     r4, r1, r4
-       add     r5, r2, r5
-       add     r6, r3, r6, ror #2
-       add     r7, ip, r7, ror #2
-       add     r8, lr, r8, ror #2
-       stmia   r0, {r4 - r8}
-
-       ldmfd   sp!, {r4 - r8, pc}
-
-.L_sha_K:
-       .word   0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6

diff --git a/block-sha1/sha1.c b/block-sha1/sha1.c
index 92d9121602bfaa6e94eb51422346e3b3fdd1a225..d8934757a5e5e259f26c4a09f7ea5d10615df0c1 100644 (file)
--- a/block-sha1/sha1.c
+++ b/block-sha1/sha1.c
@@ -1,7 +1,9 @@
 /*
- * Based on the Mozilla SHA1 (see mozilla-sha1/sha1.c),
- * optimized to do word accesses rather than byte accesses,
+ * SHA1 routine optimized to do word accesses rather than byte accesses,
  * and to avoid unnecessary copies into the context array.
+ *
+ * This was initially based on the Mozilla SHA1 implementation, although
+ * none of the original Mozilla code remains.
  */
 
 /* this is only to get definitions for memcpy(), ntohl() and htonl() */

diff --git a/block-sha1/sha1.h b/block-sha1/sha1.h
index 81abfd4c1c581c644d0149421aca642de323fca6..b864df623e3b89ad678a888dce4b0d4c997f1ac3 100644 (file)
--- a/block-sha1/sha1.h
+++ b/block-sha1/sha1.h
@@ -1,7 +1,9 @@
 /*
- * Based on the Mozilla SHA1 (see mozilla-sha1/sha1.h),
- * optimized to do word accesses rather than byte accesses,
+ * SHA1 routine optimized to do word accesses rather than byte accesses,
  * and to avoid unnecessary copies into the context array.
+ *
+ * This was initially based on the Mozilla SHA1 implementation, although
+ * none of the original Mozilla code remains.
  */
 
 typedef struct {

diff --git a/configure.ac b/configure.ac
index 3f1922d0bf66abdbcad03dfd9981ca5293a4b860..b09b8e446fbd52c55e6966c611b55ac1baa81f32 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -156,19 +156,11 @@ AC_MSG_NOTICE([CHECKS for site configuration])
 # tests.  These tests take up a significant amount of the total test time
 # but are not needed unless you plan to talk to SVN repos.
 #
-# Define MOZILLA_SHA1 environment variable when running make to make use of
-# a bundled SHA1 routine coming from Mozilla. It is GPL'd and should be fast
-# on non-x86 architectures (e.g. PowerPC), while the OpenSSL version (default
-# choice) has very fast version optimized for i586.
-#
 # Define PPC_SHA1 environment variable when running make to make use of
 # a bundled SHA1 routine optimized for PowerPC.
 #
-# Define ARM_SHA1 environment variable when running make to make use of
-# a bundled SHA1 routine optimized for ARM.
-#
 # Define NO_OPENSSL environment variable if you do not have OpenSSL.
-# This also implies MOZILLA_SHA1.
+# This also implies BLK_SHA1.
 #
 # Define OPENSSLDIR=/foo/bar if your openssl header and library files are in
 # /foo/bar/include and /foo/bar/lib directories.

diff --git a/mozilla-sha1/sha1.c b/mozilla-sha1/sha1.c
deleted file mode 100644 (file)
index 95a4ebf..0000000
--- a/mozilla-sha1/sha1.c
+++ /dev/null
@@ -1,151 +0,0 @@
-/*
- * The contents of this file are subject to the Mozilla Public
- * License Version 1.1 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of
- * the License at http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS
- * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- * implied. See the License for the specific language governing
- * rights and limitations under the License.
- *
- * The Original Code is SHA 180-1 Reference Implementation (Compact version)
- *
- * The Initial Developer of the Original Code is Paul Kocher of
- * Cryptography Research.  Portions created by Paul Kocher are
- * Copyright (C) 1995-9 by Cryptography Research, Inc.  All
- * Rights Reserved.
- *
- * Contributor(s):
- *
- *     Paul Kocher
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL"), in which case the provisions of the GPL are applicable
- * instead of those above.  If you wish to allow use of your
- * version of this file only under the terms of the GPL and not to
- * allow others to use your version of this file under the MPL,
- * indicate your decision by deleting the provisions above and
- * replace them with the notice and other provisions required by
- * the GPL.  If you do not delete the provisions above, a recipient
- * may use your version of this file under either the MPL or the
- * GPL.
- */
-
-#include "sha1.h"
-
-static void shaHashBlock(moz_SHA_CTX *ctx);
-
-void moz_SHA1_Init(moz_SHA_CTX *ctx) {
-  int i;
-
-  ctx->lenW = 0;
-  ctx->sizeHi = ctx->sizeLo = 0;
-
-  /* Initialize H with the magic constants (see FIPS180 for constants)
-   */
-  ctx->H[0] = 0x67452301;
-  ctx->H[1] = 0xefcdab89;
-  ctx->H[2] = 0x98badcfe;
-  ctx->H[3] = 0x10325476;
-  ctx->H[4] = 0xc3d2e1f0;
-
-  for (i = 0; i < 80; i++)
-    ctx->W[i] = 0;
-}
-
-
-void moz_SHA1_Update(moz_SHA_CTX *ctx, const void *_dataIn, int len) {
-  const unsigned char *dataIn = _dataIn;
-  int i;
-
-  /* Read the data into W and process blocks as they get full
-   */
-  for (i = 0; i < len; i++) {
-    ctx->W[ctx->lenW / 4] <<= 8;
-    ctx->W[ctx->lenW / 4] |= (unsigned int)dataIn[i];
-    if ((++ctx->lenW) % 64 == 0) {
-      shaHashBlock(ctx);
-      ctx->lenW = 0;
-    }
-    ctx->sizeLo += 8;
-    ctx->sizeHi += (ctx->sizeLo < 8);
-  }
-}
-
-
-void moz_SHA1_Final(unsigned char hashout[20], moz_SHA_CTX *ctx) {
-  unsigned char pad0x80 = 0x80;
-  unsigned char pad0x00 = 0x00;
-  unsigned char padlen[8];
-  int i;
-
-  /* Pad with a binary 1 (e.g. 0x80), then zeroes, then length
-   */
-  padlen[0] = (unsigned char)((ctx->sizeHi >> 24) & 255);
-  padlen[1] = (unsigned char)((ctx->sizeHi >> 16) & 255);
-  padlen[2] = (unsigned char)((ctx->sizeHi >> 8) & 255);
-  padlen[3] = (unsigned char)((ctx->sizeHi >> 0) & 255);
-  padlen[4] = (unsigned char)((ctx->sizeLo >> 24) & 255);
-  padlen[5] = (unsigned char)((ctx->sizeLo >> 16) & 255);
-  padlen[6] = (unsigned char)((ctx->sizeLo >> 8) & 255);
-  padlen[7] = (unsigned char)((ctx->sizeLo >> 0) & 255);
-  moz_SHA1_Update(ctx, &pad0x80, 1);
-  while (ctx->lenW != 56)
-    moz_SHA1_Update(ctx, &pad0x00, 1);
-  moz_SHA1_Update(ctx, padlen, 8);
-
-  /* Output hash
-   */
-  for (i = 0; i < 20; i++) {
-    hashout[i] = (unsigned char)(ctx->H[i / 4] >> 24);
-    ctx->H[i / 4] <<= 8;
-  }
-
-  /*
-   *  Re-initialize the context (also zeroizes contents)
-   */
-  moz_SHA1_Init(ctx);
-}
-
-
-#define SHA_ROT(X,n) (((X) << (n)) | ((X) >> (32-(n))))
-
-static void shaHashBlock(moz_SHA_CTX *ctx) {
-  int t;
-  unsigned int A,B,C,D,E,TEMP;
-
-  for (t = 16; t <= 79; t++)
-    ctx->W[t] =
-      SHA_ROT(ctx->W[t-3] ^ ctx->W[t-8] ^ ctx->W[t-14] ^ ctx->W[t-16], 1);
-
-  A = ctx->H[0];
-  B = ctx->H[1];
-  C = ctx->H[2];
-  D = ctx->H[3];
-  E = ctx->H[4];
-
-  for (t = 0; t <= 19; t++) {
-    TEMP = SHA_ROT(A,5) + (((C^D)&B)^D)     + E + ctx->W[t] + 0x5a827999;
-    E = D; D = C; C = SHA_ROT(B, 30); B = A; A = TEMP;
-  }
-  for (t = 20; t <= 39; t++) {
-    TEMP = SHA_ROT(A,5) + (B^C^D)           + E + ctx->W[t] + 0x6ed9eba1;
-    E = D; D = C; C = SHA_ROT(B, 30); B = A; A = TEMP;
-  }
-  for (t = 40; t <= 59; t++) {
-    TEMP = SHA_ROT(A,5) + ((B&C)|(D&(B|C))) + E + ctx->W[t] + 0x8f1bbcdc;
-    E = D; D = C; C = SHA_ROT(B, 30); B = A; A = TEMP;
-  }
-  for (t = 60; t <= 79; t++) {
-    TEMP = SHA_ROT(A,5) + (B^C^D)           + E + ctx->W[t] + 0xca62c1d6;
-    E = D; D = C; C = SHA_ROT(B, 30); B = A; A = TEMP;
-  }
-
-  ctx->H[0] += A;
-  ctx->H[1] += B;
-  ctx->H[2] += C;
-  ctx->H[3] += D;
-  ctx->H[4] += E;
-}

diff --git a/mozilla-sha1/sha1.h b/mozilla-sha1/sha1.h
deleted file mode 100644 (file)
index aa48a46..0000000
--- a/mozilla-sha1/sha1.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * The contents of this file are subject to the Mozilla Public
- * License Version 1.1 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of
- * the License at http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS
- * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- * implied. See the License for the specific language governing
- * rights and limitations under the License.
- *
- * The Original Code is SHA 180-1 Header File
- *
- * The Initial Developer of the Original Code is Paul Kocher of
- * Cryptography Research.  Portions created by Paul Kocher are
- * Copyright (C) 1995-9 by Cryptography Research, Inc.  All
- * Rights Reserved.
- *
- * Contributor(s):
- *
- *     Paul Kocher
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL"), in which case the provisions of the GPL are applicable
- * instead of those above.  If you wish to allow use of your
- * version of this file only under the terms of the GPL and not to
- * allow others to use your version of this file under the MPL,
- * indicate your decision by deleting the provisions above and
- * replace them with the notice and other provisions required by
- * the GPL.  If you do not delete the provisions above, a recipient
- * may use your version of this file under either the MPL or the
- * GPL.
- */
-
-typedef struct {
-  unsigned int H[5];
-  unsigned int W[80];
-  int lenW;
-  unsigned int sizeHi,sizeLo;
-} moz_SHA_CTX;
-
-void moz_SHA1_Init(moz_SHA_CTX *ctx);
-void moz_SHA1_Update(moz_SHA_CTX *ctx, const void *dataIn, int len);
-void moz_SHA1_Final(unsigned char hashout[20], moz_SHA_CTX *ctx);
-
-#define git_SHA_CTX    moz_SHA_CTX
-#define git_SHA1_Init  moz_SHA1_Init
-#define git_SHA1_Update        moz_SHA1_Update
-#define git_SHA1_Final moz_SHA1_Final