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sysadm |
1.1 |
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "common/setup_before.h"
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#include <stdio.h>
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#include <errno.h>
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#include "compat/strerror.h"
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#ifdef TIME_WITH_SYS_TIME
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# include <sys/time.h>
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# include <time.h>
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#else
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# ifdef HAVE_SYS_TIME_H
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# include <sys/time.h>
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# else
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# include <time.h>
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# endif
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#endif
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_SYS_RESOURCE_H
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# include <sys/resource.h>
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#endif
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#include "common/eventlog.h"
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#include "common/bn_type.h"
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#include "common/setup_after.h"
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/* file descriptor limit has different name on BSD and Linux */
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#ifdef RLIMIT_NOFILE
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# define RLIM_NUMFILES RLIMIT_NOFILE
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#else
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# ifdef RLIMIT_OFILE
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# define RLIM_NUMFILES RLIMIT_OFILE
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# endif
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#endif
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extern int get_socket_limit(void)
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{
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int socklimit = 0;
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#ifdef HAVE_GETRLIMIT
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struct rlimit rlim;
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if(getrlimit(RLIM_NUMFILES, &rlim) < 0)
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eventlog(eventlog_level_error, __FUNCTION__, "getrlimit returned error: %s", pstrerror(errno));
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socklimit = rlim.rlim_cur;
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#else
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/* FIXME: WIN32: somehow get WSAData win32 socket limit here */
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#endif
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#if !(defined HAVE_POLL || defined HAVE_KQUEUE || defined HAVE_EPOLL)
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if(!socklimit || FD_SETSIZE < socklimit)
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socklimit = FD_SETSIZE;
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#endif
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/* make socket limit smaller than file limit to make sure log files,
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db connections and save files will still work */
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socklimit -= 64;
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return socklimit;
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}
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