Add base64 tool

base64/binary.cpp

@@ -0,0 +1,46 @@
+#include <cstdio>
+#include <cstdlib>
+
+#include <ctime>
+#include <climits>
+
+int main(int argc, char **argv) {
+    const char *filename = "a.bin";
+    int bytes_count = 256;
+
+    if (argc > 1)
+        filename = argv[1];
+    
+    if (argc > 2)
+        bytes_count = atoi(argv[2]);
+
+    auto hex_file = fopen(filename, "wb");
+
+    if (hex_file == NULL) {
+        return -1;
+    }
+
+    srand(time(NULL));
+
+    constexpr int chunk_size = 0x400;
+    unsigned char buffer[chunk_size];
+    for (int total_bytes = bytes_count; chunk_size < total_bytes; total_bytes -= chunk_size) {
+        memset(buffer, 0, chunk_size);
+
+        for (int i = 0; i < chunk_size; ++ i) {
+            buffer[i] = rand() % UCHAR_MAX;
+        }
+
+        fwrite(buffer, chunk_size, 1, hex_file);
+    }
+
+    memset(buffer, 0, chunk_size);
+    for (int i = 0; i < bytes_count % chunk_size; ++ i) {
+        buffer[i] = rand() % UCHAR_MAX;
+    }
+    fwrite(buffer, bytes_count % chunk_size, 1, hex_file);
+
+    fclose(hex_file);
+
+    return 0;
+}