58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/*
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* This file is part of Jehanne.
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*
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* Copyright (C) 2019 Giacomo Tesio <giacomo@tesio.it>
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*
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* This is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, version 3 of the License.
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*
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* Jehanne 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 Affero General Public License
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* along with Jehanne. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <u.h>
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#include <lib9.h>
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#include <posix.h>
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#include "internal.h"
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long
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POSIX_sysconf(int *errnop, PosixSysConfNames name)
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{
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/* "arbitrary" means that no actual limit exists */
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switch(name){
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case PosixSCNArgMax: // _SC_ARG_MAX
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/* arbitrary */
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return 4096;
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case PosixSCNChildMax: // _SC_CHILD_MAX
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/* arbitrary */
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return 128;
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case PosixSCNHostNameMax: // _SC_HOST_NAME_MAX
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case PosixSCNLoginNameMax: // _SC_LOGIN_NAME_MAX
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/* See Proc.genbuf in /sys/src/kern/port/portdat.h */
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return 128;
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case PosixSCNClockTicks: // _SC_CLK_TCK
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/* See HZ in /sys/src/kern/amd64/dat.h */
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return 100;
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case PosixSCNOpenMax: // _SC_OPEN_MAX
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/* arbitrary */
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return 256;
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case PosixSCNPageSize: // _SC_PAGESIZE
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return 4096;
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case PosixSCNPosixVersion: // _SC_VERSION
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return 200101;
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case PosixSCNLineMax: // _SC_LINE_MAX
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/* arbitrary */
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return 4096;
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default:
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*errnop = __libposix_get_errno(PosixENOSYS);
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return -1;
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}
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}
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