74 lines
2.2 KiB
C
74 lines
2.2 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <errno.h>
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#include <sys/resource.h>
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#include "macro.h"
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#include "missing.h"
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#include "rlimit-util.h"
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#include "string-table.h"
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int setrlimit_closest(int resource, const struct rlimit *rlim) {
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struct rlimit highest, fixed;
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assert(rlim);
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if (setrlimit(resource, rlim) >= 0)
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return 0;
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if (errno != EPERM)
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return -errno;
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/* So we failed to set the desired setrlimit, then let's try
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* to get as close as we can */
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assert_se(getrlimit(resource, &highest) == 0);
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fixed.rlim_cur = MIN(rlim->rlim_cur, highest.rlim_max);
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fixed.rlim_max = MIN(rlim->rlim_max, highest.rlim_max);
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if (setrlimit(resource, &fixed) < 0)
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return -errno;
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return 0;
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}
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static const char* const rlimit_table[_RLIMIT_MAX] = {
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[RLIMIT_CPU] = "LimitCPU",
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[RLIMIT_FSIZE] = "LimitFSIZE",
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[RLIMIT_DATA] = "LimitDATA",
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[RLIMIT_STACK] = "LimitSTACK",
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[RLIMIT_CORE] = "LimitCORE",
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[RLIMIT_RSS] = "LimitRSS",
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[RLIMIT_NOFILE] = "LimitNOFILE",
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[RLIMIT_AS] = "LimitAS",
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[RLIMIT_NPROC] = "LimitNPROC",
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[RLIMIT_MEMLOCK] = "LimitMEMLOCK",
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[RLIMIT_LOCKS] = "LimitLOCKS",
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[RLIMIT_SIGPENDING] = "LimitSIGPENDING",
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[RLIMIT_MSGQUEUE] = "LimitMSGQUEUE",
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[RLIMIT_NICE] = "LimitNICE",
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[RLIMIT_RTPRIO] = "LimitRTPRIO",
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[RLIMIT_RTTIME] = "LimitRTTIME"
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};
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DEFINE_STRING_TABLE_LOOKUP(rlimit, int);
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