Add Job class.

src/net/Job.cpp

@@ -0,0 +1,158 @@
+/* XMRig
+ * Copyright 2010      Jeff Garzik <jgarzik@pobox.com>
+ * Copyright 2012-2014 pooler      <pooler@litecoinpool.org>
+ * Copyright 2014      Lucas Jones <https://github.com/lucasjones>
+ * Copyright 2014-2016 Wolf9466    <https://github.com/OhGodAPet>
+ * Copyright 2016      Jay D Dee   <jayddee246@gmail.com>
+ * Copyright 2016-2017 XMRig       <support@xmrig.com>
+ *
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program 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 General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include <string.h>
+//#include <stdlib.h>
+
+
+#include "net/Job.h"
+#include "Console.h"
+
+
+static inline unsigned char hf_hex2bin(char c, bool &err)
+{
+    if (c >= '0' && c <= '9') {
+        return c - '0';
+    }
+    else if (c >= 'a' && c <= 'f') {
+        return c - 'a' + 0xA;
+    }
+    else if (c >= 'A' && c <= 'F') {
+        return c - 'A' + 0xA;
+    }
+
+    err = true;
+    return 0;
+}
+
+
+static inline char hf_bin2hex(unsigned char c)
+{
+    if (c <= 0x9) {
+        return '0' + c;
+    }
+
+    return 'a' - 0xA + c;
+}
+
+
+Job::Job() :
+    m_size(0),
+    m_diff(0),
+    m_target(0)
+{
+}
+
+
+bool Job::setBlob(const char *blob)
+{
+    if (!blob) {
+        return false;
+    }
+
+    m_size = strlen(blob);
+    if (m_size % 2 != 0) {
+        return false;
+    }
+
+    m_size /= 2;
+    if (m_size < 76 || m_size >= sizeof(m_blob)) {
+        return false;
+    }
+
+    return fromHex(blob, m_size * 2, m_blob);
+}
+
+
+bool Job::setId(const char *id)
+{
+    if (!id || strlen(id) >= sizeof(m_id)) {
+        return false;
+    }
+
+    memset(m_id, 0, sizeof(m_id));
+    memcpy(m_id, id, strlen(id));
+    return true;
+}
+
+
+bool Job::setTarget(const char *target)
+{
+    if (!target) {
+        return false;
+    }
+
+    const size_t len = strlen(target);
+
+    if (len <= 8) {
+        uint32_t tmp = 0;
+        char str[8];
+        memcpy(str, target, len);
+
+        if (!fromHex(str, 8, reinterpret_cast<unsigned char*>(&tmp)) || tmp == 0) {
+            return false;
+        }
+
+        m_target = 0xFFFFFFFFFFFFFFFFULL / (0xFFFFFFFFULL / static_cast<uint64_t>(tmp));
+    }
+    else if (len <= 16) {
+        m_target = 0;
+        char str[16];
+        memcpy(str, target, len);
+
+        if (!fromHex(str, 16, reinterpret_cast<unsigned char*>(&m_target)) || m_target == 0) {
+            return false;
+        }
+    }
+    else {
+        return false;
+    }
+
+
+    m_diff = toDiff(m_target);
+    return true;
+}
+
+
+bool Job::fromHex(const char* in, unsigned int len, unsigned char* out)
+{
+    bool error = false;
+    for (unsigned int i = 0; i < len; i += 2) {
+        out[i / 2] = (hf_hex2bin(in[i], error) << 4) | hf_hex2bin(in[i + 1], error);
+
+        if (error) {
+            return false;
+        }
+    }
+    return true;
+}
+
+
+void Job::toHex(const unsigned char* in, unsigned int len, char* out)
+{
+    for (unsigned int i = 0; i < len; i++) {
+        out[i * 2] = hf_bin2hex((in[i] & 0xF0) >> 4);
+        out[i * 2 + 1] = hf_bin2hex(in[i] & 0x0F);
+    }
+}