+
+CoreExport int charlcat(char* x,char y,int z)
+{
+ char* x__n = x;
+ int v = 0;
+
+ while(*x__n++)
+ v++;
+
+ if (v < z - 1)
+ {
+ *--x__n = y;
+ *++x__n = 0;
+ }
+
+ return v;
+}
+
+CoreExport bool charremove(char* mp, char remove)
+{
+ char* mptr = mp;
+ bool shift_down = false;
+
+ while (*mptr)
+ {
+ if (*mptr == remove)
+ shift_down = true;
+
+ if (shift_down)
+ *mptr = *(mptr+1);
+
+ mptr++;
+ }
+
+ return shift_down;
+}
+
+static const char hextable[] = "0123456789abcdef";
+
+std::string BinToHex(const std::string& data)
+{
+ int l = data.length();
+ std::string rv;
+ rv.reserve(l * 2);
+ for(int i=0; i < l; i++)
+ {
+ unsigned char c = data[i];
+ rv.append(1, hextable[c >> 4]);
+ rv.append(1, hextable[c & 0xF]);
+ }
+ return rv;
+}
+
+static const char b64table[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+std::string BinToBase64(const std::string& data_str, const char* table, char pad)
+{
+ if (!table)
+ table = b64table;
+
+ uint32_t buffer;
+ uint8_t* data = (uint8_t*)data_str.data();
+ std::string rv;
+ size_t i = 0;
+ while (i + 2 < data_str.length())
+ {
+ buffer = (data[i] << 16 | data[i+1] << 8 | data[i+2]);
+ rv.push_back(table[0x3F & (buffer >> 18)]);
+ rv.push_back(table[0x3F & (buffer >> 12)]);
+ rv.push_back(table[0x3F & (buffer >> 6)]);
+ rv.push_back(table[0x3F & (buffer >> 0)]);
+ i += 3;
+ }
+ if (data_str.length() == i)
+ {
+ // no extra characters
+ }
+ else if (data_str.length() == i + 1)
+ {
+ buffer = data[i] << 16;
+ rv.push_back(table[0x3F & (buffer >> 18)]);
+ rv.push_back(table[0x3F & (buffer >> 12)]);
+ if (pad)
+ {
+ rv.push_back(pad);
+ rv.push_back(pad);
+ }
+ }
+ else if (data_str.length() == i + 2)
+ {
+ buffer = (data[i] << 16 | data[i+1] << 8);
+ rv.push_back(table[0x3F & (buffer >> 18)]);
+ rv.push_back(table[0x3F & (buffer >> 12)]);
+ rv.push_back(table[0x3F & (buffer >> 6)]);
+ if (pad)
+ rv.push_back(pad);
+ }
+ return rv;
+}
+
+std::string Base64ToBin(const std::string& data_str, const char* table)
+{
+ if (!table)
+ table = b64table;
+
+ int bitcount = 0;
+ uint32_t buffer = 0;
+ const char* data = data_str.c_str();
+ std::string rv;
+ while (true)
+ {
+ const char* find = strchr(table, *data++);
+ if (!find || find >= table + 64)
+ break;
+ buffer = (buffer << 6) | (find - table);
+ bitcount += 6;
+ if (bitcount >= 8)
+ {
+ bitcount -= 8;
+ rv.push_back((buffer >> bitcount) & 0xFF);
+ }
+ }
+ return rv;
+}