[HELP] modify the command /chpass

// to lower input pass
for (i=0; i<std::strlen(command); i++)
    if (std::isupper((int)command[i])) command[i] = std::tolower((int)command[i]);

// get passhash from input pass     
t_hash inputpasshash;
bnet_hash(&inputpasshash, std::strlen(command), command);

// compare (input and user's) passhash strings
if (!std::strcmp( hash_get_str(inputpasshash), account_get_pass(account) )) 
{
...

static int _handle_chpass_command(t_connection * c, char const *text)
{
  unsigned int i,j;
  t_account  * account;
  t_account  * temp;
  t_hash       passhash;
  char *command;
  char         arg1[256];
  char         arg2[256];
  char const * username;
  char *       pass;
  
  for (i=0; text[i]!=' ' && text[i]!='\0'; i++);
  for (; text[i]==' '; i++);

  for (j=0; text[i]!=' ' && text[i]!='\0'; i++) /* get username/pass */
    if (j<sizeof(arg1)-1) arg1[j++] = text[i];
  arg1[j] = '\0';

  for (; text[i]==' '; i++); /* skip spaces */
  for (j=0; text[i]!=' ' && text[i]!='\0'; i++)
    if (j<sizeof(arg2)-1) arg2[j++] = text[i];
  arg2[j] = '\0';

  account  = conn_get_account(c);
  username = conn_get_username(c);
  command  = arg1;
  pass     = arg2;

  if (arg2[0]=='\0') {
      message_send_text(c,message_type_info,c,"Change your password.");
      message_send_text(c,message_type_info,c,"Type: /chpass <currentpassword> <newpassword>");
      return 0;
  }
  else {

      for (i=0; i<std::strlen(command); i++)
          if (std::isupper((int)command[i])) command[i] = std::tolower((int)command[i]);
      
      bnet_hash(&passhash,std::strlen(command),command);

      account_set_strattr(account,"TEMP\\Curpass",hash_get_str(passhash));
  }

  snprintf(msgtemp, sizeof(msgtemp), "Trying to change password for account \"%.64s\" to \"%.128s\"",username,pass);
  message_send_text(c,message_type_info,c,msgtemp);

  if (!std::strcmp(account_get_strattr(account,"TEMP\\Curpass"),account_get_pass(account))) {
      if (std::strlen(pass) > MAX_USERPASS_LEN) {
          snprintf(msgtemp, sizeof(msgtemp), "Maximum password length allowed is %d",MAX_USERPASS_LEN);
          message_send_text(c,message_type_error,c,msgtemp);
          return 0;
      }
  
      for (i=0; i<std::strlen(pass); i++)
          if (std::isupper((int)pass[i])) pass[i] = std::tolower((int)pass[i]);
      
      bnet_hash(&passhash,std::strlen(pass),pass);
      
      if (account_set_pass(account,hash_get_str(passhash))<0) {
          message_send_text(c,message_type_error,c,"Unable to set password.");
          return 0;
      }
  
      if (account_get_auth_admin(account,NULL) == 1 || account_get_auth_operator(account,NULL) == 1) {
          snprintf(msgtemp, sizeof(msgtemp), "Success. Password for account "UID_FORMAT" updated.",account_get_uid(account));
          message_send_text(c,message_type_info,c,msgtemp);
          snprintf(msgtemp, sizeof(msgtemp), "Hash is: %.128s",hash_get_str(passhash));
          message_send_text(c,message_type_info,c,msgtemp);
      } else {
          snprintf(msgtemp, sizeof(msgtemp), "Success. Password for account %.64s updated.",username);
          message_send_text(c,message_type_info,c,msgtemp);
      }
      return 0;
  } else {
      message_send_text(c,message_type_error,c,"Unable to change password. Wrong current password!");
      return 0;
  }

}