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/* netset.c - SET 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_checkaction */
#include "neterr.h"
#include "netset.h"
static void set_var(ctype_t *client, const char *upsname, const char *var,
const char *newval)
{
upstype_t *ups;
const char *val;
const struct enum_t *etmp;
char cmd[SMALLBUF], esc[SMALLBUF];
ups = get_ups_ptr(upsname);
if (!ups) {
send_err(client, NUT_ERR_UNKNOWN_UPS);
return;
}
if (!ups_available(ups, client))
return;
/* make sure this user is allowed to do SET */
if (!user_checkaction(&client->sock, client->username,
client->password, "SET")) {
send_err(client, NUT_ERR_ACCESS_DENIED);
return;
}
val = sstate_getinfo(ups, var);
if (!val) {
send_err(client, NUT_ERR_VAR_NOT_SUPPORTED);
return;
}
/* make sure this variable is writable (RW) */
if ((sstate_getflags(ups, var) & ST_FLAG_RW) == 0) {
send_err(client, NUT_ERR_READONLY);
return;
}
/* see if the new value is allowed for this variable */
if (sstate_getflags(ups, var) & ST_FLAG_STRING) {
int aux;
aux = sstate_getaux(ups, var);
/* check for insanity from the driver */
if (aux < 1) {
upslogx(LOG_WARNING, "UPS [%s]: auxdata for %s is invalid",
ups->name, var);
send_err(client, NUT_ERR_SET_FAILED);
return;
}
if (aux < (int) strlen(newval)) {
send_err(client, NUT_ERR_TOO_LONG);
return;
}
}
/* see if it's enumerated */
etmp = sstate_getenumlist(ups, var);
if (etmp) {
int found = 0;
while (etmp) {
if (!strcmp(etmp->val, newval)) {
found = 1;
break;
}
etmp = etmp->next;
}
if (!found) {
send_err(client, NUT_ERR_INVALID_VALUE);
return;
}
}
/* must be OK now */
upslogx(LOG_INFO, "Set variable: %s@%s set %s on %s to %s",
client->username, client->addr, var, ups->name, newval);
snprintf(cmd, sizeof(cmd), "SET %s \"%s\"\n",
var, pconf_encode(newval, esc, sizeof(esc)));
if (!sstate_sendline(ups, cmd)) {
upslogx(LOG_INFO, "Set command send failed");
send_err(client, NUT_ERR_SET_FAILED);
return;
}
sendback(client, "OK\n");
}
void net_set(ctype_t *client, int numarg, const char **arg)
{
if (numarg < 4) {
send_err(client, NUT_ERR_INVALID_ARGUMENT);
return;
}
/* SET VAR UPS VARNAME VALUE */
if (!strcasecmp(arg[0], "VAR")) {
set_var(client, arg[1], arg[2], arg[3]);
return;
}
send_err(client, NUT_ERR_INVALID_ARGUMENT);
return;
}
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