From 76d7dae26ab8b56dbafcec710fc42a5fb7d79840 Mon Sep 17 00:00:00 2001 From: knu Date: Fri, 13 Jul 2001 20:06:14 +0000 Subject: Import the "digest" module and the submodules, from the Rough Ruby project. ext/digest: This module provides the module Digest and the abstract class Digest::Base. ext/digest/md5 (which obsoletes ext/md5): This module provides the class Digest::MD5 which implements the MD5 Message-Digest Algorithm. ext/digest/rmd160: This module provides the class Digest::RMD160 which implements the RIPEMD-160 cryptographic hash function. ext/digest/sha1 (which obsoletes ext/sha1): This module provides the class Digest::SHA1 which implements the SHA-1 Secure Hash Algorithm. ext/digest/sha2: This module provides the classes Digest::SHA256, Digest::SHA384 and Digest::SHA512 which implement the SHA-256, SHA-384 and SHA-512 Secure Hash Algorithms, respectively. lib/md5.rb, lib/sha1.rb: These files are provided for backward compatibility. All these classes have the common API, which previously ext/md5 and ext/sha1 modules provided. While the new API keeps 100% backward compatibility, it has been enriched with several utility methods. Read digest.txt for further details. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@1609 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- ext/digest/sha1/.cvsignore | 2 + ext/digest/sha1/MANIFEST | 5 + ext/digest/sha1/extconf.rb | 20 ++++ ext/digest/sha1/sha1.c | 283 +++++++++++++++++++++++++++++++++++++++++++++ ext/digest/sha1/sha1.h | 37 ++++++ ext/digest/sha1/sha1hl.c | 102 ++++++++++++++++ ext/digest/sha1/sha1init.c | 34 ++++++ 7 files changed, 483 insertions(+) create mode 100644 ext/digest/sha1/.cvsignore create mode 100644 ext/digest/sha1/MANIFEST create mode 100644 ext/digest/sha1/extconf.rb create mode 100644 ext/digest/sha1/sha1.c create mode 100644 ext/digest/sha1/sha1.h create mode 100644 ext/digest/sha1/sha1hl.c create mode 100644 ext/digest/sha1/sha1init.c (limited to 'ext/digest/sha1') diff --git a/ext/digest/sha1/.cvsignore b/ext/digest/sha1/.cvsignore new file mode 100644 index 0000000000..fc802ff1c2 --- /dev/null +++ b/ext/digest/sha1/.cvsignore @@ -0,0 +1,2 @@ +Makefile +mkmf.log diff --git a/ext/digest/sha1/MANIFEST b/ext/digest/sha1/MANIFEST new file mode 100644 index 0000000000..f08f240383 --- /dev/null +++ b/ext/digest/sha1/MANIFEST @@ -0,0 +1,5 @@ +extconf.rb +sha1.c +sha1.h +sha1hl.c +sha1init.c diff --git a/ext/digest/sha1/extconf.rb b/ext/digest/sha1/extconf.rb new file mode 100644 index 0000000000..c7d6d4d844 --- /dev/null +++ b/ext/digest/sha1/extconf.rb @@ -0,0 +1,20 @@ +# $RoughId: extconf.rb,v 1.1 2001/07/13 15:38:27 knu Exp $ +# $Id$ + +require "mkmf" + +$CFLAGS << " -DHAVE_CONFIG_H -I.." + +$objs = [ + "sha1.#{$OBJEXT}", + "sha1hl.#{$OBJEXT}", + "sha1init.#{$OBJEXT}", +] + +have_header("sys/cdefs.h") + +have_header("inttypes.h") + +have_header("unistd.h") + +create_makefile("digest/sha1") diff --git a/ext/digest/sha1/sha1.c b/ext/digest/sha1/sha1.c new file mode 100644 index 0000000000..1012ef8751 --- /dev/null +++ b/ext/digest/sha1/sha1.c @@ -0,0 +1,283 @@ +/* $NetBSD: sha1.c,v 1.2 2001/03/22 09:51:48 agc Exp $ */ +/* $OpenBSD: sha1.c,v 1.9 1997/07/23 21:12:32 kstailey Exp $ */ +/* $RoughId: sha1.c,v 1.2 2001/07/13 19:49:10 knu Exp $ */ +/* $Id$ */ + +/* + * SHA-1 in C + * By Steve Reid + * 100% Public Domain + * + * Test Vectors (from FIPS PUB 180-1) + * "abc" + * A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D + * "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" + * 84983E44 1C3BD26E BAAE4AA1 F95129E5 E54670F1 + * A million repetitions of "a" + * 34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F + */ + +#include "sha1.h" + +#define SHA1HANDSOFF /* Copies data before messing with it. */ + +#if defined(_KERNEL) || defined(_STANDALONE) +#include +#include +#define _DIAGASSERT(x) (void)0 +#else +/* #include "namespace.h" */ +#include +#include +#endif + +#ifndef _DIAGASSERT +#define _DIAGASSERT(cond) assert(cond) +#endif + +/* + * XXX Kludge until there is resolution regarding mem*() functions + * XXX in the kernel. + */ +#if defined(_KERNEL) || defined(_STANDALONE) +#define memcpy(s, d, l) bcopy((d), (s), (l)) +#endif + +#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits)))) + +/* + * blk0() and blk() perform the initial expand. + * I got the idea of expanding during the round function from SSLeay + */ +#ifndef WORDS_BIGENDIAN +# define blk0(i) (block->l[i] = (rol(block->l[i],24)&0xFF00FF00) \ + |(rol(block->l[i],8)&0x00FF00FF)) +#else +# define blk0(i) block->l[i] +#endif +#define blk(i) (block->l[i&15] = rol(block->l[(i+13)&15]^block->l[(i+8)&15] \ + ^block->l[(i+2)&15]^block->l[i&15],1)) + +/* + * (R0+R1), R2, R3, R4 are the different operations (rounds) used in SHA1 + */ +#define R0(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk0(i)+0x5A827999+rol(v,5);w=rol(w,30); +#define R1(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=rol(w,30); +#define R2(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=rol(w,30); +#define R3(v,w,x,y,z,i) z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=rol(w,30); +#define R4(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=rol(w,30); + + +typedef union { + uint8_t c[64]; + uint32_t l[16]; +} CHAR64LONG16; + +#ifdef __sparc_v9__ +void do_R01(uint32_t *a, uint32_t *b, uint32_t *c, uint32_t *d, uint32_t *e, CHAR64LONG16 *); +void do_R2(uint32_t *a, uint32_t *b, uint32_t *c, uint32_t *d, uint32_t *e, CHAR64LONG16 *); +void do_R3(uint32_t *a, uint32_t *b, uint32_t *c, uint32_t *d, uint32_t *e, CHAR64LONG16 *); +void do_R4(uint32_t *a, uint32_t *b, uint32_t *c, uint32_t *d, uint32_t *e, CHAR64LONG16 *); + +#define nR0(v,w,x,y,z,i) R0(*v,*w,*x,*y,*z,i) +#define nR1(v,w,x,y,z,i) R1(*v,*w,*x,*y,*z,i) +#define nR2(v,w,x,y,z,i) R2(*v,*w,*x,*y,*z,i) +#define nR3(v,w,x,y,z,i) R3(*v,*w,*x,*y,*z,i) +#define nR4(v,w,x,y,z,i) R4(*v,*w,*x,*y,*z,i) + +void +do_R01(uint32_t *a, uint32_t *b, uint32_t *c, uint32_t *d, uint32_t *e, CHAR64LONG16 *block) +{ + nR0(a,b,c,d,e, 0); nR0(e,a,b,c,d, 1); nR0(d,e,a,b,c, 2); nR0(c,d,e,a,b, 3); + nR0(b,c,d,e,a, 4); nR0(a,b,c,d,e, 5); nR0(e,a,b,c,d, 6); nR0(d,e,a,b,c, 7); + nR0(c,d,e,a,b, 8); nR0(b,c,d,e,a, 9); nR0(a,b,c,d,e,10); nR0(e,a,b,c,d,11); + nR0(d,e,a,b,c,12); nR0(c,d,e,a,b,13); nR0(b,c,d,e,a,14); nR0(a,b,c,d,e,15); + nR1(e,a,b,c,d,16); nR1(d,e,a,b,c,17); nR1(c,d,e,a,b,18); nR1(b,c,d,e,a,19); +} + +void +do_R2(uint32_t *a, uint32_t *b, uint32_t *c, uint32_t *d, uint32_t *e, CHAR64LONG16 *block) +{ + nR2(a,b,c,d,e,20); nR2(e,a,b,c,d,21); nR2(d,e,a,b,c,22); nR2(c,d,e,a,b,23); + nR2(b,c,d,e,a,24); nR2(a,b,c,d,e,25); nR2(e,a,b,c,d,26); nR2(d,e,a,b,c,27); + nR2(c,d,e,a,b,28); nR2(b,c,d,e,a,29); nR2(a,b,c,d,e,30); nR2(e,a,b,c,d,31); + nR2(d,e,a,b,c,32); nR2(c,d,e,a,b,33); nR2(b,c,d,e,a,34); nR2(a,b,c,d,e,35); + nR2(e,a,b,c,d,36); nR2(d,e,a,b,c,37); nR2(c,d,e,a,b,38); nR2(b,c,d,e,a,39); +} + +void +do_R3(uint32_t *a, uint32_t *b, uint32_t *c, uint32_t *d, uint32_t *e, CHAR64LONG16 *block) +{ + nR3(a,b,c,d,e,40); nR3(e,a,b,c,d,41); nR3(d,e,a,b,c,42); nR3(c,d,e,a,b,43); + nR3(b,c,d,e,a,44); nR3(a,b,c,d,e,45); nR3(e,a,b,c,d,46); nR3(d,e,a,b,c,47); + nR3(c,d,e,a,b,48); nR3(b,c,d,e,a,49); nR3(a,b,c,d,e,50); nR3(e,a,b,c,d,51); + nR3(d,e,a,b,c,52); nR3(c,d,e,a,b,53); nR3(b,c,d,e,a,54); nR3(a,b,c,d,e,55); + nR3(e,a,b,c,d,56); nR3(d,e,a,b,c,57); nR3(c,d,e,a,b,58); nR3(b,c,d,e,a,59); +} + +void +do_R4(uint32_t *a, uint32_t *b, uint32_t *c, uint32_t *d, uint32_t *e, CHAR64LONG16 *block) +{ + nR4(a,b,c,d,e,60); nR4(e,a,b,c,d,61); nR4(d,e,a,b,c,62); nR4(c,d,e,a,b,63); + nR4(b,c,d,e,a,64); nR4(a,b,c,d,e,65); nR4(e,a,b,c,d,66); nR4(d,e,a,b,c,67); + nR4(c,d,e,a,b,68); nR4(b,c,d,e,a,69); nR4(a,b,c,d,e,70); nR4(e,a,b,c,d,71); + nR4(d,e,a,b,c,72); nR4(c,d,e,a,b,73); nR4(b,c,d,e,a,74); nR4(a,b,c,d,e,75); + nR4(e,a,b,c,d,76); nR4(d,e,a,b,c,77); nR4(c,d,e,a,b,78); nR4(b,c,d,e,a,79); +} +#endif + +/* + * Hash a single 512-bit block. This is the core of the algorithm. + */ +void SHA1_Transform(state, buffer) + uint32_t state[5]; + const uint8_t buffer[64]; +{ + uint32_t a, b, c, d, e; + CHAR64LONG16 *block; + +#ifdef SHA1HANDSOFF + CHAR64LONG16 workspace; +#endif + + _DIAGASSERT(buffer != 0); + _DIAGASSERT(state != 0); + +#ifdef SHA1HANDSOFF + block = &workspace; + (void)memcpy(block, buffer, 64); +#else + block = (CHAR64LONG16 *)(void *)buffer; +#endif + + /* Copy context->state[] to working vars */ + a = state[0]; + b = state[1]; + c = state[2]; + d = state[3]; + e = state[4]; + +#ifdef __sparc_v9__ + do_R01(&a, &b, &c, &d, &e, block); + do_R2(&a, &b, &c, &d, &e, block); + do_R3(&a, &b, &c, &d, &e, block); + do_R4(&a, &b, &c, &d, &e, block); +#else + /* 4 rounds of 20 operations each. Loop unrolled. */ + R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); R0(c,d,e,a,b, 3); + R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7); + R0(c,d,e,a,b, 8); R0(b,c,d,e,a, 9); R0(a,b,c,d,e,10); R0(e,a,b,c,d,11); + R0(d,e,a,b,c,12); R0(c,d,e,a,b,13); R0(b,c,d,e,a,14); R0(a,b,c,d,e,15); + R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19); + R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23); + R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27); + R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31); + R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35); + R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39); + R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43); + R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47); + R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51); + R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55); + R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59); + R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63); + R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67); + R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71); + R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75); + R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79); +#endif + + /* Add the working vars back into context.state[] */ + state[0] += a; + state[1] += b; + state[2] += c; + state[3] += d; + state[4] += e; + + /* Wipe variables */ + a = b = c = d = e = 0; +} + + +/* + * SHA1_Init - Initialize new context + */ +void SHA1_Init(context) + SHA1_CTX *context; +{ + + _DIAGASSERT(context != 0); + + /* SHA1 initialization constants */ + context->state[0] = 0x67452301; + context->state[1] = 0xEFCDAB89; + context->state[2] = 0x98BADCFE; + context->state[3] = 0x10325476; + context->state[4] = 0xC3D2E1F0; + context->count[0] = context->count[1] = 0; +} + + +/* + * Run your data through this. + */ +void SHA1_Update(context, data, len) + SHA1_CTX *context; + const uint8_t *data; + size_t len; +{ + uint32_t i, j; + + _DIAGASSERT(context != 0); + _DIAGASSERT(data != 0); + + j = context->count[0]; + if ((context->count[0] += len << 3) < j) + context->count[1] += (len>>29)+1; + j = (j >> 3) & 63; + if ((j + len) > 63) { + (void)memcpy(&context->buffer[j], data, (i = 64-j)); + SHA1_Transform(context->state, context->buffer); + for ( ; i + 63 < len; i += 64) + SHA1_Transform(context->state, &data[i]); + j = 0; + } else { + i = 0; + } + (void)memcpy(&context->buffer[j], &data[i], len - i); +} + + +/* + * Add padding and return the message digest. + */ +void SHA1_Final(digest, context) + uint8_t digest[20]; + SHA1_CTX* context; +{ + size_t i; + uint8_t finalcount[8]; + + _DIAGASSERT(digest != 0); + _DIAGASSERT(context != 0); + + for (i = 0; i < 8; i++) { + finalcount[i] = (uint8_t)((context->count[(i >= 4 ? 0 : 1)] + >> ((3-(i & 3)) * 8) ) & 255); /* Endian independent */ + } + SHA1_Update(context, (const uint8_t *)"\200", 1); + while ((context->count[0] & 504) != 448) + SHA1_Update(context, (const uint8_t *)"\0", 1); + SHA1_Update(context, finalcount, 8); /* Should cause a SHA1_Transform() */ + + if (digest) { + for (i = 0; i < 20; i++) + digest[i] = (uint8_t) + ((context->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255); + } +} + +int SHA1_Equal(SHA1_CTX* pctx1, SHA1_CTX* pctx2) { + return memcmp(pctx1->count, pctx2->count, sizeof(pctx1->count)) == 0 + && memcmp(pctx1->state, pctx2->state, sizeof(pctx1->state)) == 0 + && memcmp(pctx1->buffer, pctx2->buffer, sizeof(pctx1->buffer)) == 0; +} diff --git a/ext/digest/sha1/sha1.h b/ext/digest/sha1/sha1.h new file mode 100644 index 0000000000..22e06d29b8 --- /dev/null +++ b/ext/digest/sha1/sha1.h @@ -0,0 +1,37 @@ +/* $NetBSD: sha1.h,v 1.2 1998/05/29 22:55:44 thorpej Exp $ */ +/* $RoughId: sha1.h,v 1.2 2001/07/13 19:49:10 knu Exp $ */ +/* $Id$ */ + +/* + * SHA-1 in C + * By Steve Reid + * 100% Public Domain + */ + +#ifndef _SYS_SHA1_H_ +#define _SYS_SHA1_H_ + +#include "defs.h" + +typedef struct { + uint32_t state[5]; + uint32_t count[2]; + uint8_t buffer[64]; +} SHA1_CTX; + +void SHA1_Transform _((uint32_t state[5], const uint8_t buffer[64])); +void SHA1_Init _((SHA1_CTX *context)); +void SHA1_Update _((SHA1_CTX *context, const uint8_t *data, size_t len)); +void SHA1_Final _((uint8_t digest[20], SHA1_CTX *context)); +int SHA1_Equal _((SHA1_CTX *pctx1, SHA1_CTX *pctx2)); +#ifndef _KERNEL +char *SHA1_End _((SHA1_CTX *, char *)); +char *SHA1_File _((char *, char *)); +char *SHA1_Data _((const uint8_t *, size_t, char *)); +#endif /* _KERNEL */ + +#define SHA1_BLOCK_LENGTH 64 +#define SHA1_DIGEST_LENGTH 20 +#define SHA1_DIGEST_STRING_LENGTH (SHA1_DIGEST_LENGTH * 2 + 1) + +#endif /* _SYS_SHA1_H_ */ diff --git a/ext/digest/sha1/sha1hl.c b/ext/digest/sha1/sha1hl.c new file mode 100644 index 0000000000..d1a236b22c --- /dev/null +++ b/ext/digest/sha1/sha1hl.c @@ -0,0 +1,102 @@ +/* $NetBSD: sha1hl.c,v 1.2 2001/03/10 15:55:14 tron Exp $ */ +/* $RoughId: sha1hl.c,v 1.2 2001/07/13 19:49:10 knu Exp $ */ +/* $Id$ */ + +/* sha1hl.c + * ---------------------------------------------------------------------------- + * "THE BEER-WARE LICENSE" (Revision 42): + * wrote this file. As long as you retain this notice you + * can do whatever you want with this stuff. If we meet some day, and you think + * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp + * ---------------------------------------------------------------------------- + */ + +/* #include "namespace.h" */ + +#include "sha1.h" +#include + +#include +#include +#include +#include +#if defined(HAVE_UNISTD_H) +# include +#endif + +#if defined(LIBC_SCCS) && !defined(lint) +/* __RCSID("$NetBSD: sha1hl.c,v 1.2 2001/03/10 15:55:14 tron Exp $"); */ +#endif /* LIBC_SCCS and not lint */ + +#ifndef _DIAGASSERT +#define _DIAGASSERT(cond) assert(cond) +#endif + + +/* ARGSUSED */ +char * +SHA1_End(ctx, buf) + SHA1_CTX *ctx; + char *buf; +{ + int i; + char *p = buf; + uint8_t digest[20]; + static const char hex[]="0123456789abcdef"; + + _DIAGASSERT(ctx != NULL); + /* buf may be NULL */ + + if (p == NULL && (p = malloc(41)) == NULL) + return 0; + + SHA1_Final(digest,ctx); + for (i = 0; i < 20; i++) { + p[i + i] = hex[((uint32_t)digest[i]) >> 4]; + p[i + i + 1] = hex[digest[i] & 0x0f]; + } + p[i + i] = '\0'; + return(p); +} + +char * +SHA1_File (filename, buf) + char *filename; + char *buf; +{ + uint8_t buffer[BUFSIZ]; + SHA1_CTX ctx; + int fd, num, oerrno; + + _DIAGASSERT(filename != NULL); + /* XXX: buf may be NULL ? */ + + SHA1_Init(&ctx); + + if ((fd = open(filename,O_RDONLY)) < 0) + return(0); + + while ((num = read(fd, buffer, sizeof(buffer))) > 0) + SHA1_Update(&ctx, buffer, (size_t)num); + + oerrno = errno; + close(fd); + errno = oerrno; + return(num < 0 ? 0 : SHA1_End(&ctx, buf)); +} + +char * +SHA1_Data (data, len, buf) + const uint8_t *data; + size_t len; + char *buf; +{ + SHA1_CTX ctx; + + _DIAGASSERT(data != NULL); + /* XXX: buf may be NULL ? */ + + SHA1_Init(&ctx); + SHA1_Update(&ctx, data, len); + return(SHA1_End(&ctx, buf)); +} diff --git a/ext/digest/sha1/sha1init.c b/ext/digest/sha1/sha1init.c new file mode 100644 index 0000000000..ecf4aeb198 --- /dev/null +++ b/ext/digest/sha1/sha1init.c @@ -0,0 +1,34 @@ +/* $RoughId: sha1init.c,v 1.2 2001/07/13 19:49:10 knu Exp $ */ +/* $Id$ */ + +#include "digest.h" +#include "sha1.h" + +static algo_t sha1 = { + SHA1_DIGEST_LENGTH, + sizeof(SHA1_CTX), + (hash_init_func_t)SHA1_Init, + (hash_update_func_t)SHA1_Update, + (hash_end_func_t)SHA1_End, + (hash_final_func_t)SHA1_Final, + (hash_equal_func_t)SHA1_Equal, +}; + +void +Init_sha1() +{ + VALUE mDigest, cDigest_Base, cDigest_SHA1; + ID id_metadata; + + rb_require("digest.so"); + + mDigest = rb_path2class("Digest"); + cDigest_Base = rb_path2class("Digest::Base"); + + cDigest_SHA1 = rb_define_class_under(mDigest, "SHA1", cDigest_Base); + + id_metadata = rb_intern("metadata"); + + rb_cvar_declare(cDigest_SHA1, id_metadata, + Data_Wrap_Struct(rb_cObject, 0, 0, &sha1)); +} -- cgit v1.2.3