fgets error, unwanted 0

main.cpp
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#include "Client.h"

int main () {


    char cmd[10];
    BOOL ok = true;

    while (ok) {
        printf("Command: ");
        scanf("%s",&cmd);

        if (strcmp(cmd, "client") == 0 || strcmp(cmd, "Client") == 0)
            RunClient();
        /*else if (strcmp(cmd, "server") == 0 || strcmp(cmd, "Server") == 0)
            RunServer();
        else if (strcmp(cmd, "close") == 0 || strcmp(cmd, "Close") == 0) {
            CloseServer();
            ok = false;
        }*/
        else
            printf("Invalid arguments\r\nUse with arguments client, server or close\r\n");
    }

    return 0;
}

Client.cpp
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#include "Client.h"

int ReadInput() {
    char buffer [5];
    printf("Number: ");
    fgets(buffer,5,stdin);
    return atoi(buffer);
}

void RunClient() {
    int number;
    int i = 5;
    while (i != 0) {
        number = ReadInput();
        printf("Number is: %d\n",number);
        i--;
    }
}

Common.h
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#pragma once

#define CONNECT_NAMEDPIPE "\\\\.\\pipe\\ClientToServer"

#include <stdio.h>
#include <windows.h>

struct Msg {
    int value[10];
    int length;
};

struct MinMax {
    int min;
    int max;
};

Client.h
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#include "Common.h"

void RunClient();
void CloseServer();