Linux系统安装区块链以太坊服务go-ethereum-release1.7版本源码

/**********************************************************************
 * Copyright （c） 2015 Pieter Wuille                                   *
 * Distributed under the MIT software license see the accompanying   *
 * file COPYING or http://www.opensource.org/licenses/mit-license.php.*
 **********************************************************************/

#include 
#include 

#include “lax_der_parsing.h“

int ecdsa_signature_parse_der_lax（const secp256k1_context* ctx secp256k1_ecdsa_signature* sig const unsigned char *input size_t inputlen） {
    size_t rpos rlen spos slen;
    size_t pos = 0;
    size_t lenbyte;
    unsigned char tmpsig[64] = {0};
    int overflow = 0;

    /* Hack to initialize sig with a correctly-parsed but invalid signature. */
    secp256k1_ecdsa_signature_parse_compact（ctx sig tmpsig）;

    /* Sequence tag byte */
    if （pos == inputlen || input[pos] != 0x30） {
        return 0;
    }
    pos++;

    /* Sequence length bytes */
    if （pos == inputlen） {
        return 0;
    }
    lenbyte = input[pos++];
    if （lenbyte & 0x80） {
        lenbyte -= 0x80;
        if （pos + lenbyte > inputlen） {
            return 0;
        }
        pos += lenbyte;
    }

    /* Integer tag byte for R */
    if （pos == inputlen || input[pos] != 0x02） {
        return 0;
    }
    pos++;

    /* Integer length for R */
    if （pos == inputlen） {
        return 0;
    }
    lenbyte = input[pos++];
    if （lenbyte & 0x80） {
        lenbyte -= 0x80;
        if （pos + lenbyte > inputlen） {
            return 0;
        }
        while （lenbyte > 0 && input[pos] == 0） {
            pos++;
            lenbyte--;
        }
        if （lenbyte >= sizeof（size_t）） {
            return 0;
        }
        rlen = 0;
        while （lenbyte > 0） {
            rlen = （rlen << 8） + input[pos];
            pos++;
            lenbyte--;
        }
    } else {
        rlen = lenbyte;
    }
    if （rlen > inputlen - pos） {
        return 0;
    }
    rpos = pos;
    pos += rlen;

    /* Integer tag byte for S */
    if （pos == inputlen || input[pos] != 0x02） {
        return 0;
    }
    pos++;

    /* Integer length for S */
    if （pos == inputlen） {
        return 0;
    }
    lenbyte = input[pos++];
    if （lenbyte & 0x80） {
        lenbyte -= 0x80;
        if （pos + lenbyte > inputlen） {
            return 0;
        }
        while （lenbyte > 0 && input[pos] == 0） {
            pos++;
            lenbyte--;
        }
        if （lenbyte >= sizeof（size_t）） {
            return 0;
        }
        slen = 0;
        while （lenbyte > 0） {
            slen = （slen << 8） + input[pos];
            pos++;
            lenbyte--;
        }
    } else {
        slen = lenbyte;
    }
    if （slen > inputlen - pos） {
        return 0;
    }
    spos = pos;
    pos += slen;

    /* Ignore leading zeroes in R */
    while （rlen > 0 && input[rpos] == 0） {
        rlen--;
        rpos++;
    }
    /* Copy R value */
    if （rlen > 3

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2017-11-21 01:54  go-ethereum-release-1.7
     文件          98  2017-11-21 01:54  go-ethereum-release-1.7.dockerignore
     文件          66  2017-11-21 01:54  go-ethereum-release-1.7.gitattributes
     目录           0  2017-11-21 01:54  go-ethereum-release-1.7.github
     文件         293  2017-11-21 01:54  go-ethereum-release-1.7.githubCODEOWNERS
     文件         702  2017-11-21 01:54  go-ethereum-release-1.7.githubCONTRIBUTING.md
     文件         468  2017-11-21 01:54  go-ethereum-release-1.7.githubISSUE_TEMPLATE.md
     文件         664  2017-11-21 01:54  go-ethereum-release-1.7.gitignore
     文件          84  2017-11-21 01:54  go-ethereum-release-1.7.gitmodules
     文件        2781  2017-11-21 01:54  go-ethereum-release-1.7.mailmap
     文件        8221  2017-11-21 01:54  go-ethereum-release-1.7.travis.yml
     目录           0  2017-11-21 01:54  go-ethereum-release-1.7accounts
     目录           0  2017-11-21 01:54  go-ethereum-release-1.7accountsabi
     文件        3850  2017-11-21 01:54  go-ethereum-release-1.7accountsabiabi.go
     文件       12365  2017-11-21 01:54  go-ethereum-release-1.7accountsabiabi_test.go
     文件        1441  2017-11-21 01:54  go-ethereum-release-1.7accountsabiargument.go
     目录           0  2017-11-21 01:54  go-ethereum-release-1.7accountsabiind
     文件        2122  2017-11-21 01:54  go-ethereum-release-1.7accountsabiindauth.go
     文件        4692  2017-11-21 01:54  go-ethereum-release-1.7accountsabiindackend.go
     目录           0  2017-11-21 01:54  go-ethereum-release-1.7accountsabiindackends
     文件       12110  2017-11-21 01:54  go-ethereum-release-1.7accountsabiindackendssimulated.go
     文件        8665  2017-11-21 01:54  go-ethereum-release-1.7accountsabiindase.go
     文件       10124  2017-11-21 01:54  go-ethereum-release-1.7accountsabiindind.go
     文件       49263  2017-11-21 01:54  go-ethereum-release-1.7accountsabiindind_test.go
     文件       18952  2017-11-21 01:54  go-ethereum-release-1.7accountsabiind emplate.go
     文件        2547  2017-11-21 01:54  go-ethereum-release-1.7accountsabiindutil.go
     文件        2936  2017-11-21 01:54  go-ethereum-release-1.7accountsabiindutil_test.go
     文件        1227  2017-11-21 01:54  go-ethereum-release-1.7accountsabidoc.go
     文件        2677  2017-11-21 01:54  go-ethereum-release-1.7accountsabierror.go
     文件        4189  2017-11-21 01:54  go-ethereum-release-1.7accountsabievent.go
     文件        1795  2017-11-21 01:54  go-ethereum-release-1.7accountsabievent_test.go
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