redis-cli implemented

Author: srivastava-yash

redis-cli/main.cpp

@@ -0,0 +1,66 @@
+#include <arpa/inet.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <unistd.h>
+#include <iostream>
+#include "../utils/string_utility.h"
+#define PORT 6378
+
+int main(int argc, char const* argv[]) {
+
+    int status, valread, client_fd;
+    struct sockaddr_in serv_addr;
+
+    // creating socket
+    char buffer[1024] = { 0 };
+    if ((client_fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
+        printf("\n redis-cli: Socket creation error \n");
+        return -1;
+    }
+
+    serv_addr.sin_family = AF_INET;
+    serv_addr.sin_port = htons(PORT);
+
+    // Convert IPv4 and IPv6 addresses from text to binary
+    if (inet_pton(AF_INET, "127.0.0.1", &serv_addr.sin_addr) <= 0) {
+        printf(
+            "\nInvalid address/ Address not supported \n");
+        return -1;
+    }
+
+    // Connecting to socket
+    if ((status = connect(client_fd, (struct sockaddr*)&serv_addr,
+                   sizeof(serv_addr))) < 0) {
+        printf("\nConnection Failed \n");
+        return -1;
+    }
+
+    printf("Connection established\n");
+
+    // client commands input logic
+    while(true) {
+        std::cout<<">";
+        std::string input;
+        std::getline(std::cin, input);
+
+        string cmd = split_string(input)[0];
+        transform(cmd.begin(), cmd.end(), cmd.begin(), ::toupper);
+
+        if(cmd == "EXIT" || cmd == "QUIT" || cmd == "Q") {
+            break;
+        }
+        
+        int sentBytes; 
+        if (sentBytes = send(client_fd, input.c_str(), input.size(), 0) < 0) {
+            printf("\nError while sending data to server\n");
+            continue;
+        }
+
+        valread = read(client_fd, buffer, 1024);
+        printf("%s\n", buffer);
+    }
+
+    return 0;
+
+}