enviar contraseña a pcp_recovery_node -h 192.168.1.48 -p 9898 -U pgpool -n 1

#include "postgres.h"
#include <string.h>
#include "fmgr.h"
#include "libpq/pqformat.h" /* needed for send/recv functions */
#include "utils/guc.h"
#ifdef PG_MODULE_MAGIC
PG_MODULE_MAGIC;
#endif

PG_FUNCTION_INFO_V1(pcp_recovery_node);
Datum
pcp_recovery_node(PG_FUNCTION_ARGS)
{
  int32 id = PG_GETARG_INT32(0);
  int rc;
  int ret;
  char *node_info = NULL;
  char *pcp_recovery_node_path = "/usr/local/bin/pcp_recovery_node";
  char *pcp_recovery_node_args = "-h 192.168.1.48 -p 9898 -U pgpool -n";
  char pcp_recovery_node_com[100] =