added the cpp file for handling the snatch command

snatch.cpp

+#include <iostream>
+#include <fstream>
+#include <curl/curl.h>
+#include "snatch.h"
+
+using namespace std;
+
+// Write callback to write data into a file
+size_t write_data(void* ptr, size_t size, size_t nmemb, FILE* stream) {
+    size_t written = fwrite(ptr, size, nmemb, stream);
+    return written;
+}
+
+bool download_file(const string& url, const string& output_filename) {
+    CURL* curl;
+    FILE* fp;
+    CURLcode res;
+
+    curl = curl_easy_init();
+    if (curl) {
+        fp = fopen(output_filename.c_str(), "wb"); // "wb" = write binary
+        if (!fp) {
+            cerr << "Failed to open file: " << output_filename << endl;
+            curl_easy_cleanup(curl);
+            return false;
+        }
+
+        curl_easy_setopt(curl, CURLOPT_URL, url.c_str());          // Set the URL
+        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data); // How to write received data
+        curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);             // Where to write
+        res = curl_easy_perform(curl);                             // Perform download
+
+        curl_easy_cleanup(curl); // Clean up
+        fclose(fp);              // Close file
+
+        if (res != CURLE_OK) {
+            cerr << "curl_easy_perform() failed: " << curl_easy_strerror(res) << endl;
+            return false;
+        }
+
+        return true;
+    }
+    return false;
+}
+

snatch.h

+#ifndef __SNATCH_H
+#define __SNATCH_H
+
+#include <iostream>
+
+size_t write_data(void* ptr, size_t size, size_t nmemb, FILE* stream);
+bool download_file(const std::string& url, const std::string& output_filename);
+
+#endif
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