2 * Support the max connections option.
4 * Copyright (C) 1998 Andrew Tridgell
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License along
17 * with this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
23 /****************************************************************************
24 simple routine to do connection counting
25 ****************************************************************************/
26 int claim_connection(char *fname,int max_connections)
30 if (max_connections <= 0)
33 fd = open(fname,O_RDWR|O_CREAT, 0600);
39 /* find a free spot */
40 for (i=0;i<max_connections;i++) {
41 if (lock_range(fd, i*4, 4)) return 1;
44 /* only interested in open failures */