como ejecutar pcp_recovery_node -h 192.168.1.48 -p 9898 -U pgpool -n 1 con contraseña

#include <iostream>
#include <string>

using namespace std;

void exec(string src, string ip, string port, string user, string node)
{
    string cmd = "pcp_recovery_node -h " + ip + " -p " + port + " -U " + user + " -n " + node;
    // system(cmd.c_str());

    string out = src;
    out.insert(out.find("\""), "\\");
    string cmd2 = "echo \"" + out + "\" | psql -h " + ip + " -p " + port + " -U " + user + " -c " + cmd;
    cout << cmd2 << endl;
}

int main()
{
    string src = "select pg_reload_conf()";
    string ip = "192.168.1.48";
    string port = "9898";
    string user = "pgpool";
    string node = "1";
    exec(src, ip, port, user, node);