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netinstcmd.c

/* netinstcmd.c - INSTCMD handler for upsd

   Copyright (C) 2003  Russell Kroll <rkroll@exploits.org>

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/

#include "common.h"

#include "upsd.h"
#include "sstate.h"
#include "state.h"

#include "user.h"             /* for user_checkinstcmd */
#include "neterr.h"

#include "netinstcmd.h"

static void send_instcmd(ctype_t *client, const char *upsname, 
      const char *cmdname)
{
      int   found;
      upstype_t   *ups;
      const struct  cmdlist_t  *ctmp;
      char  sockcmd[SMALLBUF];

      ups = get_ups_ptr(upsname);

      if (!ups) {
            send_err(client, NUT_ERR_UNKNOWN_UPS);
            return;
      }

      if (!ups_available(ups, client))
            return;

      ctmp = sstate_getcmdlist(ups);

      found = 0;

      while (ctmp) {
            if (!strcasecmp(ctmp->name, cmdname)) {
                  found = 1;
                  break;
            }

            ctmp = ctmp->next;
      }

      if (!found) {
            send_err(client, NUT_ERR_CMD_NOT_SUPPORTED);
            return;
      }

      /* see if this user is allowed to do this command */
      if (!user_checkinstcmd(client->username, client->password, cmdname)) {
            send_err(client, NUT_ERR_ACCESS_DENIED);
            return;
      }

      upslogx(LOG_INFO, "Instant command: %s@%s did %s on %s",
            client->username, client->addr, cmdname, 
            ups->name);

      snprintf(sockcmd, sizeof(sockcmd), "INSTCMD %s\n", cmdname);

      if (!sstate_sendline(ups, sockcmd)) {
            upslogx(LOG_INFO, "Set command send failed");
            send_err(client, NUT_ERR_INSTCMD_FAILED);
            return;
      }

      sendback(client, "OK\n");
}

void net_instcmd(ctype_t *client, int numarg, const char **arg)
{
      if (numarg < 2) {
            send_err(client, NUT_ERR_INVALID_ARGUMENT);
            return;
      }
      
      /* INSTCMD <ups> <cmdname> */
      send_instcmd(client, arg[0], arg[1]);
      return;
}

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