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Use length from s3fs_HMAC256 for consistency
EVP_MAX_MD_SIZE can range up to 64. Found by Coverity.
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@ -2524,9 +2524,9 @@ string S3fsCurl::CalcSignature(const string& method, const string& canonical_uri
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unsigned int cscope_len = StringToSign.size();
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unsigned char* md = NULL;
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unsigned int md_len = 0;
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char hexSig[64 + 1];
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s3fs_HMAC256(kSigning, kSigning_len, cscope, cscope_len, &md, &md_len);
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char *hexSig = new char[2 * md_len + 1];
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for(cnt = 0; cnt < md_len; cnt++){
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sprintf(&hexSig[cnt * 2], "%02x", md[cnt]);
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}
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@ -2534,6 +2534,7 @@ string S3fsCurl::CalcSignature(const string& method, const string& canonical_uri
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delete[] md;
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Signature = hexSig;
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delete[] hexSig;
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return Signature;
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}
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